Blank cutting and conveying automatic connection equipment for steel pipe production line

Abstract

The invention discloses automatic blank cutting and conveying connection equipment for a steel pipe production line. Comprising a first transferring and discharging mechanism, a second transferring and discharging mechanism, a first material guiding frame, a first transferring and feeding mechanism, a discharging and conveying mechanism, a first material receiving and conveying mechanism, a first transferring and conveying mechanism and a first sawing mechanism, the second material receiving and conveying mechanism, the second transferring and conveying mechanism, the second saw cutting mechanism, the second feeding and conveying mechanism and the second material supporting mechanism are sequentially arranged from front to back. Blanks are placed in the first material supporting mechanism, and the first feeding mechanism is used for clamping the blanks in the first material supporting mechanism and driving the blanks to move forwards to stretch into the first sawing mechanism. Blanks can be automatically sawn into process pipe blanks, the production efficiency can be improved, the labor cost and the labor intensity of workers are reduced, and the automation degree is higher.

Description

Technical Field

[0001] The invention relates to a blank cutting, conveying and automatic connecting device for a steel pipe production line. Background Art

[0002] At present, in the production process of seamless steel pipes, the blank needs to be cut into process tube blanks of specified lengths, and then the process tube blanks are subjected to a series of processes to make seamless steel pipes. A tube blank production and processing cutting device disclosed in the Chinese patent with announcement number CN112974965A can be used to cut the blanks to obtain process tube blanks. However, in the traditional steel pipe production line, the blanks are cut into process tube blanks with great reliance on manual auxiliary operation, and the automation degree of blank cutting is low, which has the disadvantages of low production efficiency, high labor intensity and high labor cost. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide an automatic connection equipment for billet cutting and conveying for a steel pipe production line, which can automatically saw the billet into process pipe billets, improve production efficiency, reduce labor costs and labor intensity of workers, and have a higher degree of automation.

[0004] In order to solve the above technical problems, the technical solution of the present invention is: a kind of automatic connection equipment for billet cutting and conveying for steel pipe production line, including a first transfer unloading mechanism, a second transfer unloading mechanism, a first material guide frame, a first transfer loading mechanism, a material discharging conveying mechanism, a first material receiving conveying mechanism, a first transfer conveying mechanism, a first sawing mechanism, a first feeding mechanism and a first supporting mechanism arranged in sequence from front to back, and a second material receiving conveying mechanism, a second transfer conveying mechanism, a second sawing mechanism, a second feeding mechanism and a second supporting mechanism arranged in sequence from front to back; the first supporting mechanism has billets placed therein; the first feeding mechanism is used to clamp the billets in the first supporting mechanism and drive the billets to move forward to extend into the first sawing mechanism; the first sawing mechanism is used to cut the billets to obtain process pipe billets of a certain length; the first transfer conveying mechanism is used to receive the billets from the first sawing mechanism. The process tube blanks cut by the mechanism are conveyed to the first receiving and conveying mechanism, and the first receiving and conveying mechanism is used to receive the process tube blanks conveyed by the first transfer and conveying mechanism; the second supporting mechanism is provided with a blank; the second feeding and feeding mechanism is used to clamp the blank in the second supporting mechanism and drive the blank to move forward until it extends into the second sawing mechanism; the second sawing mechanism is used to cut the blank to obtain a process tube blank of a certain length; the second transfer and conveying mechanism is used to receive the process tube blanks cut by the second sawing mechanism and convey the process tube blanks to the second receiving and conveying mechanism, and the second receiving and conveying mechanism is used to receive the process tube blanks conveyed by the second transfer and conveying mechanism; the first material guide frame is inclined, and a first blocking component for blocking the process tube blanks on the first material guide frame is connected to the lower end portion of the first material guide frame; The first material receiving and conveying mechanism is located on the higher side of the first material guide rack, the material discharging conveying mechanism is located on the lower side of the first material guide rack, the second material receiving and conveying mechanism and the second transfer and unloading mechanism are both located above the first material guide rack; the first transfer and unloading mechanism is located between the higher end portion of the first material guide rack and the first material receiving and conveying mechanism, the first transfer and unloading mechanism is used to lift the process tube blank on the first material receiving and conveying mechanism and guide the lifted process tube blank to roll onto the first material guide rack; the second transfer and unloading mechanism is located on one side of the second material receiving and conveying mechanism and is used to lift the process tube blank on the second material receiving and conveying mechanism and guide the lifted process tube blank to roll onto the first material guide rack; the first transfer loading mechanism is located between the lower end portion of the first material guide rack and the material discharging conveying mechanism, the first transfer loading mechanism is used to lift the process tube blank on the first material guide rack and allow the lifted process tube blank to roll onto the material discharging conveying mechanism, and the material discharging conveying mechanism receives the process tube blank and is used to transport the process tube blank to the unloading position.

[0005] Further, the billet cutting and conveying automatic connection equipment for the steel pipe production line also includes a third transfer unloading mechanism, a second material guide frame, a second transfer loading mechanism, and a third material receiving and conveying mechanism, a third transfer conveying mechanism, a third sawing mechanism, a third feeding and feeding mechanism, and a third supporting mechanism arranged in sequence from front to back; the third supporting mechanism is provided with billets; the third feeding and feeding mechanism is used to clamp the billets in the third supporting mechanism and drive the billets to move forward until they extend into the third sawing mechanism; the third sawing mechanism is used to cut billets to obtain process tube billets of a certain length; the third transfer conveying mechanism is used to receive the process tube billets cut by the third sawing mechanism and convey the process tube billets to move toward the third material receiving and conveying mechanism, and the third material receiving and conveying mechanism is used to receive the process tube billets conveyed by the third transfer conveying mechanism; the second material guide frame is inclined, and a second blocking component for blocking the process tube billets on the second material guide frame is connected to the lower end portion of the second material guide frame; the third material receiving and conveying mechanism is located on the higher side of the second material guide frame, and the discharging conveying mechanism is located on the lower side of the second material guide frame; The third transfer and unloading mechanism is located between the higher end portion of the second material guide rack and the third material receiving and conveying mechanism, and is used to lift the process tube blanks on the third material receiving and conveying mechanism and guide the lifted process tube blanks to roll onto the second material guide rack; the second transfer and loading mechanism is located between the lower end portion of the second material guide rack and the discharging conveying mechanism, and is used to lift the process tube blanks on the second material guide rack and guide the lifted process tube blanks to roll onto the discharging conveying mechanism.

[0006] Furthermore, the first supporting mechanism, the second supporting mechanism and the third supporting mechanism respectively include a plurality of supporting components and a plurality of limiting components arranged in sequence along the front-to-back direction; the supporting component includes a supporting bracket and a supporting roller, the supporting bracket is fixed, the supporting roller is rotatably connected to the supporting bracket and is used to support the lower end of the blank; the limiting component includes a limiting bracket, a left limiting roller and a right limiting roller, the limiting bracket is fixed, the left limiting roller is rotatably connected to the limiting bracket and is used to abut against the left side of the blank, and the right limiting roller is rotatably connected to the limiting bracket and is used to abut against the right side of the blank.

[0007] Furthermore, the first feeding mechanism, the second feeding mechanism and the third feeding mechanism respectively include a feeding frame, a feeding slide, a clamping mechanism and a feeding drive mechanism; the feeding slide is slidably connected to the feeding frame along the front and rear directions; the clamping mechanism is connected to the feeding slide and is used to clamp the blank; the feeding drive mechanism is connected to the feeding slide and is used to drive the feeding slide to move forward and backward, thereby driving the blank clamped by the clamping mechanism to move forward.

[0008] Furthermore, the billet cutting and conveying automated connection equipment for the steel pipe production line also includes a first rear length measuring device for measuring the length of the billet on the first supporting mechanism, a second rear length measuring device for measuring the length of the billet on the second supporting mechanism, a third rear length measuring device for measuring the length of the billet on the third supporting mechanism, a first front length measuring device for detecting the cutting length of the process tube billet in the first sawing mechanism, a second front length measuring device for detecting the cutting length of the process tube billet in the second sawing mechanism, and a third front length measuring device for detecting the cutting length of the process tube billet in the third sawing mechanism; wherein the first rear length measuring device includes a first rangefinder and a first end face sensor; the second rear length measuring device includes a first rangefinder and a first end face sensor; An end face sensor is located on one side of the first feeding mechanism, and the first end face sensor is used to send a signal to the controller when the front end face of the blank in the first supporting mechanism moves to align with the first end face sensor; the first rangefinder is located behind the blank in the first supporting mechanism, and the controller is used to control the first rangefinder to measure the distance to the rear end face of the blank in the first supporting mechanism when receiving the signal sent by the first end face sensor; wherein, the second rear length measuring device includes a second rangefinder and a second end face sensor; the second end face sensor is located on one side of the second feeding mechanism, and the second end face sensor is used to measure the front end of the blank in the second supporting mechanism. When the front end face of the blank in the third supporting mechanism moves to align with the second end face sensor, the controller sends a signal to the controller; the second rangefinder is located behind the blank in the second supporting mechanism, and the controller is used to control the second rangefinder to measure the distance to the rear end face of the blank in the second supporting mechanism when receiving the signal sent by the second end face sensor; wherein the third rear length measuring device includes a third rangefinder and a third end face sensor; the third end face sensor is located on one side of the third feeding mechanism, and the third end face sensor is used to send a signal to the controller when the front end face of the blank in the third supporting mechanism moves to align with the third end face sensor; the third rangefinder is located behind the blank in the third supporting mechanism The controller is used for controlling the third rangefinder to measure the distance to the rear end face of the blank in the third supporting mechanism when receiving the signal sent by the third end face sensor; wherein the first front length measuring device comprises a first mounting frame, a first sliding bracket, a first photoelectric switch, a first origin sensor and a first servo mechanism; the first sliding bracket is located in front of the first sawing mechanism, and the first sliding bracket is slidably connected to the first mounting frame along the front-back direction; the first servo mechanism is connected to the first mounting frame and connected to the first sliding bracket, and the first servo mechanism is used for driving the first sliding bracket to move forward and backward and for counting and measuring the moving distance of the first sliding bracket;The first photoelectric switch is connected to the first sliding bracket and is connected to the first servo mechanism signal. When the first sliding bracket moves to align with the front end surface of the blank in the first sawing mechanism, the first photoelectric switch senses the front end surface of the blank and generates a signal to send to the first servo mechanism; the first origin sensor is connected to the first mounting frame, located in front of the first sawing mechanism and is connected to the first servo mechanism signal. When the first sliding bracket moves to align with the first origin sensor, the first origin sensor senses the first sliding bracket and generates a signal to send to the first servo mechanism; wherein the second front length measuring device includes a second mounting frame, a second sliding bracket, a second photoelectric switch, and a second an origin sensor and a second servo mechanism; the second sliding bracket is located in front of the second sawing mechanism, and the second sliding bracket is slidably connected to the second mounting bracket along the front-back direction; the second servo mechanism is connected to the second mounting bracket and connected to the second sliding bracket, and the second servo mechanism is used to drive the second sliding bracket to move forward and backward and to count and measure the moving distance of the second sliding bracket; the second photoelectric switch is connected to the second sliding bracket and is connected to the second servo mechanism signal, when the second sliding bracket moves to align with the front end surface of the blank in the second sawing mechanism, the second photoelectric switch senses the front end surface of the blank and generates a signal to send to the second servo mechanism; the second origin sensor and the second servo mechanism; the second sliding bracket is located in front of the second sawing mechanism, and the second sliding bracket is connected to the second servo mechanism signal, and the second photoelectric switch senses the front end surface of the blank and generates a signal to send to the second servo mechanism; the second origin sensor and the second servo mechanism; the second sliding bracket is located in front of the second sawing mechanism, and the second sliding bracket is connected ... The point sensor is connected to the second mounting frame, located in front of the second sawing mechanism and connected to the second servo mechanism signal. When the second sliding bracket moves to align with the second origin sensor, the second origin sensor senses the second sliding bracket and generates a signal to send to the second servo mechanism; wherein, the third front length measuring device includes a third mounting frame, a third sliding bracket, a third photoelectric switch, a third origin sensor and a third servo mechanism; the third sliding bracket is located in front of the third sawing mechanism, and the third sliding bracket is connected to the third mounting frame in a sliding manner in the front-rear direction; the third servo mechanism is connected to the third mounting frame and connected to the third sliding bracket, and the third servo mechanism is used to drive The third sliding bracket moves forward and backward and is used to count and measure the moving distance of the third sliding bracket; the third photoelectric switch is connected to the third sliding bracket and is connected to the third servo mechanism signal. When the third sliding bracket moves to align with the front end surface of the blank in the third sawing mechanism, the third photoelectric switch senses the front end surface of the blank and generates a signal to send to the third servo mechanism; the third origin sensor is connected to the third mounting frame, located in front of the third sawing mechanism and is connected to the third servo mechanism signal. When the third sliding bracket moves to align with the third origin sensor, the third origin sensor senses the third sliding bracket and generates a signal to send to the third servo mechanism. ;

[0009] Furthermore, the billet cutting and conveying automatic connection equipment for the steel pipe production line also includes a first storage rack, a second storage rack, a third storage rack, a fourth storage rack, a fifth storage rack, a sixth storage rack, a first material pushing mechanism, a second material pushing mechanism, a third material pushing mechanism, a first unloading mechanism and a second unloading mechanism; the first storage rack is located on one side of the first transfer conveying mechanism; the second storage rack is located on one side of the first material receiving conveying mechanism; The third storage rack is located on one side of the second transfer conveying mechanism, and the fourth storage rack is located on the other side of the second transfer conveying mechanism; the fifth storage rack is located on one side of the third transfer conveying mechanism; the sixth storage rack is located on one side of the third material receiving conveying mechanism; the first pushing mechanism is connected to the first transfer conveying mechanism and is used to push the process tube blanks on the first transfer conveying mechanism into the first storage rack; the first unloading mechanism is connected to the first material receiving conveying mechanism and is used to lift the process tube blanks on the first material receiving conveying mechanism and guide the lifted process tube blanks to roll into the second storage rack; the second pushing mechanism is connected to the second transfer conveying mechanism and is used to push the process tube blanks on the second transfer conveying mechanism into the third storage rack or into the fourth storage rack; the third pushing mechanism is connected to the third transfer conveying mechanism and is used to push the process tube blanks on the third transfer conveying mechanism into the fifth storage rack; the second unloading mechanism is connected to the third material receiving conveying mechanism and is used to lift the process tube blanks on the third material receiving conveying mechanism and guide the lifted process tube blanks to roll into the sixth storage rack.

[0010] Further, the first transfer conveying mechanism, the second transfer conveying mechanism and the third transfer conveying mechanism respectively include a transfer frame, a transfer driving mechanism, a driving shaft, a driven shaft, a plurality of driving sprockets, a plurality of driven sprockets and a plurality of conveying chains; the conveying chains correspond to the driving sprockets and the driven sprockets one by one respectively; the driving shaft and the driven shaft are respectively rotatably connected to the transfer frame; the driving sprockets are connected to the driving shaft in parallel; the driven sprockets are connected to the driven shaft in parallel; the conveying chain is connected to the corresponding driving sprocket and the corresponding driven sprocket, and the conveying chain is used to receive the process tube blank obtained by cutting; the transfer driving mechanism is connected to the driving shaft and is used to drive the driving shaft and the driving sprocket to rotate, thereby driving the conveying chain to move to convey the process tube blank; Wherein, the first pushing mechanism includes a base plate, a first pushing plate and a first pushing cylinder; the base plate is fixedly connected to the transfer frame in the first transfer conveying mechanism; the first pushing plate is slidably connected to the base plate; the first pushing cylinder is connected to the base plate, and the first pushing cylinder is connected to the first pushing plate and is used to drive the first pushing plate to move so as to push the process tube blanks on the conveying chain in the first transfer conveying mechanism to the first storage rack; wherein, the second pushing mechanism includes a support frame, a second pushing plate and a second pushing cylinder; the support frame is fixedly connected to the transfer frame in the second transfer conveying mechanism, and the support frame is located above the conveying chain in the second transfer conveying mechanism; the second push plate is slidably connected to the support frame and is located above the conveying chain in the second transfer conveying mechanism; the second pushing cylinder is connected to the The third push plate is connected to the support frame and is connected to the second push plate, the second push cylinder is used to drive the second push plate to move to one side to push the process tube blanks on the conveying chain in the second transfer conveying mechanism to the third storage rack, and the second push cylinder is also used to drive the second push plate to move to the other side to push the process tube blanks on the conveying chain in the second transfer conveying mechanism to the fourth storage rack; wherein the third pushing mechanism includes a bottom plate, a third push plate and a third push cylinder; the bottom plate is fixedly connected to the transfer frame in the third transfer conveying mechanism; the third push plate is slidably connected to the bottom plate; the third push cylinder is connected to the bottom plate, and the third push cylinder is connected to the third push plate and is used to drive the third push plate to move so as to push the process tube blanks on the conveying chain in the third transfer conveying mechanism to the fifth storage rack.

[0011] Furthermore, the billet cutting and conveying automatic connection equipment for the steel pipe production line also includes a first raw material storage rack, a first material shifting mechanism, a first material feeding and conveying mechanism, a first intermediate storage rack, a second intermediate storage rack, a first material turning mechanism, a second material turning mechanism, a first conveying mechanism, and a second conveying mechanism; the first raw material storage rack stores billets, the first raw material storage rack is tilted so that the billets roll toward the lower end on the first raw material storage rack, and the lower end of the first raw material storage rack is connected with a first stopper for blocking the billets on the first raw material storage rack; the first material shifting mechanism and the first material feeding and conveying mechanism are both located at the lower end of the first raw material storage rack, the first material shifting mechanism is used to convey the billets located at the lower end of the first raw material storage rack to the first material feeding and conveying mechanism, and the first material feeding and conveying mechanism is used to convey the billets forward to the first material picking position; the first intermediate storage rack is located on one side of the first material picking position on the first material feeding and conveying mechanism, and the second intermediate storage rack is located on the other side of the first material picking position on the first material feeding and conveying mechanism, and the first material turning mechanism is used to lift the billets in the first material picking position on the first material feeding and conveying mechanism and guide the billets to the first material picking position. The lifted blank is guided to roll onto the first intermediate storage rack, and the second turning mechanism is used to lift the blank in the first material taking position on the first feeding and conveying mechanism and guide the lifted blank to roll onto the second intermediate storage rack; the first intermediate storage rack is tilted so that the blank rolls toward the lower end on the first intermediate storage rack, and the lower end of the first intermediate storage rack is connected with a first stopper for blocking the blank on the first intermediate storage rack; the first transport mechanism and the first supporting mechanism are both arranged at the lower end of the first intermediate storage rack, and the first transport mechanism is used to transport the blank located at the lower end of the first intermediate storage rack to the first supporting mechanism; the second intermediate storage rack is tilted so that the blank rolls toward the lower end on the second intermediate storage rack, and the lower end of the second intermediate storage rack is connected with a second stopper for blocking the blank on the second intermediate storage rack; the second transport mechanism and the second supporting mechanism are both arranged at the lower end of the second intermediate storage rack, and the second transport mechanism is used to transport the blank located at the lower end of the second intermediate storage rack to the second supporting mechanism; The automatic connection equipment for cutting and conveying billets for a steel pipe production line further comprises a second material storage rack, a second material shifting mechanism, a second material feeding and conveying mechanism, a third intermediate storage rack, a third material turning mechanism and a third conveying mechanism; the second material storage rack stores billets, the second material storage rack is tilted so that the billets roll toward a lower end on the second material storage rack, and a second stopper for blocking the billets on the second material storage rack is connected to a lower end of the second material storage rack; The second material moving mechanism and the second material feeding and conveying mechanism are both located at the lower end of the second raw material storage rack, the second material moving mechanism is used to move the blank located at the lower end of the second raw material storage rack to the second material feeding and conveying mechanism, and the second material feeding and conveying mechanism is used to convey the blank forward to the second material picking position; the third intermediate storage rack is located on one side of the second material picking position on the second material feeding and conveying mechanism, the third material turning mechanism is used to lift the blank in the second material picking position on the second material feeding and conveying mechanism and guide the lifted blank to roll onto the third intermediate storage rack, the third intermediate storage rack is tilted so that the blank rolls toward the lower end on the third intermediate storage rack, and the lower end of the third intermediate storage rack is connected to a third limiting block for blocking the blank on the third intermediate storage rack; the third conveying mechanism and the third supporting mechanism are both located at the lower end of the third intermediate storage rack, and the third conveying mechanism is used to move the blank located at the lower end of the third intermediate storage rack to the third supporting mechanism.

[0012] Further, the first material moving mechanism, the second material moving mechanism, the first conveying mechanism, the second conveying mechanism and the third conveying mechanism respectively include at least two conveying components arranged in sequence from front to back, and the conveying components include a fixed seat, a sliding seat, a supporting block, a horizontal cylinder and a vertical cylinder; wherein, the fixed seat is fixedly arranged; the sliding seat is slidably connected to the fixed seat in a horizontal direction, and the sliding seat has a material picking position and a material discharging position during the sliding process; the supporting block is slidably connected to the sliding seat in a vertical direction; the horizontal cylinder is connected to the sliding seat and is used to drive the sliding seat to slide between the material picking position and the material discharging position; the vertical cylinder is connected to the sliding seat and is connected to the supporting block, and the vertical cylinder is used to drive the supporting block to rise upward when the sliding seat moves to the material picking position so that the supporting block supports the blank, and the vertical cylinder is also used to drive the supporting block to descend to put down the blank when the sliding seat moves to the material discharging position.

[0013] Furthermore, the automated connection equipment for billet cutting and conveying for the steel pipe production line also includes an end transfer mechanism, an end guide rack, a lifting mechanism and an end conveying mechanism; the end guide rack is arranged at an angle, and an end blocking component for blocking the process tube billet on the end guide rack is connected to the lower end of the end guide rack; the end transfer mechanism is located between the higher end of the end guide rack and the discharging conveying mechanism, and the end transfer mechanism is used to lift the process tube billet in the unloading position on the discharging conveying mechanism and guide the lifted process tube billet to roll onto the end guide rack; the lifting mechanism is located between the lower end of the end guide rack and the end conveying mechanism, and the lifting mechanism is used to lift the process tube billet on the end guide rack and drive the process tube billet to be lifted and conveyed to the end conveying mechanism.

[0014] Furthermore, the lifting mechanism includes a lifting frame, an upper lifting shaft, a lower lifting shaft, a lifting drive mechanism, a lifting chain, an upper sprocket corresponding to the lifting chain one by one, a lower sprocket corresponding to the lifting chain one by one, and a plurality of guide frames; the guide frames are connected to the lifting frame in parallel and are inclined; the upper lifting shaft and the lower lifting shaft are both rotatably connected to the lifting frame, and the upper lifting shaft is located above the lower lifting shaft; the upper sprocket is connected to the upper lifting shaft in parallel, and the lower sprocket is connected to the lower lifting shaft in parallel; the lifting chain is connected to the corresponding upper sprocket and the corresponding lower sprocket. A lifting bracket is connected to the lifting chain; the lifting drive mechanism is connected to the upper lifting shaft and is used to drive the upper lifting shaft to rotate, and then drives the lifting chain to move through the upper sprocket, and then drives the lifting bracket to move to hold up the process tube blanks on the terminal guide rack and drive the process tube blanks to be lifted and transported to the guide rack; the terminal conveying mechanism is connected to a plurality of first receiving plates connected to the lower end of the guide rack, so that the process tube blanks on the guide rack can roll onto the first receiving plate, and the first receiving plate is used to guide the process tube blanks to roll onto the terminal conveying mechanism after receiving the process tube blanks.

[0015] Furthermore, the end conveying mechanism, the discharging conveying mechanism, the first material receiving conveying mechanism, the second material receiving conveying mechanism, the third material receiving conveying mechanism, the first feeding conveying mechanism and the second feeding conveying mechanism respectively include a conveying frame, a conveying drive mechanism and a plurality of conveying rollers; the conveying rollers are arranged in sequence and rotatably connected to the conveying frame, and the billet and process tube blank are used to be carried on the conveying rollers; the conveying drive mechanism is connected to part or all of the conveying rollers and is used to drive the conveying rollers to rotate so as to convey the billet and process tube blank to move.

[0016] Furthermore, the discharging conveying mechanism is connected with a plurality of second receiving plates arranged in sequence, and the second receiving plates are used to guide the process tube billet to roll onto the discharging conveying mechanism after receiving the process tube billet; Wherein, the first transfer and loading mechanism comprises: A first principal axis of rotation setting; A plurality of first loading arms connected in parallel to the first spindle; a first driving mechanism connected to the first spindle, the first driving mechanism being used to drive the first spindle to rotate and then drive the first loading arm to rotate, so that the first loading arm lifts the process tube blank on the first guide frame to the second receiving plate during the rotation process, and then the process tube blank rolls along the second receiving plate to the discharging conveying mechanism; Wherein, the second transfer and loading mechanism comprises: A second spindle for the rotation setting; A plurality of second loading arms connected in parallel to the second spindle; a second driving mechanism connected to the second main shaft, the second driving mechanism being used to drive the second main shaft to rotate and then drive the second loading arm to rotate, so that the second loading arm lifts the process tube blank on the second material guide frame to the second material receiving plate during the rotation process, and then the process tube blank rolls along the second material receiving plate to the discharging conveying mechanism; Wherein, the first transfer and unloading mechanism, the second transfer and unloading mechanism, the third transfer and unloading mechanism, the terminal transfer mechanism, the first turning mechanism, the second turning mechanism and the third turning mechanism respectively include: a rotating spindle for a rotation setting; A plurality of rotating arms connected in parallel to the rotating main shaft; A rotary drive mechanism connected to the rotary main shaft is used to drive the rotary main shaft to rotate and then drive the rotary arm to rotate so that the rotary arm can hold up the blank or process tube and then let the blank or process tube roll down along the rotary arm.

[0017] After adopting the above technical scheme, when the blank is conveyed to the first supporting mechanism, the first feeding mechanism will clamp the blank in the first supporting mechanism and drive the blank to move forward to extend into the first sawing mechanism, and then the first sawing mechanism cuts the blank and obtains the process tube blank, and then the first transfer conveying mechanism receives the process tube blank cut by the first sawing mechanism and conveys the process tube blank to the first material receiving conveying mechanism, the first material receiving conveying mechanism receives the process tube blank conveyed by the first transfer conveying mechanism, and then the first transfer unloading mechanism lifts the process tube blank on the first material receiving conveying mechanism and guides the lifted process tube blank to roll onto the first material guide rack. At the same time, when the blank is conveyed to the second supporting mechanism, the second feeding mechanism will clamp the blank in the second supporting mechanism and drive the blank to move forward to extend into the second sawing mechanism, and then the second sawing mechanism cuts the blank and obtains the process tube blank, and then the second transfer conveying mechanism receives the process tube blank cut by the second sawing mechanism and conveys the process tube blank to the second receiving conveying mechanism, and the second receiving conveying mechanism receives the process tube blank conveyed by the second transfer conveying mechanism, and then the second transfer unloading mechanism lifts the process tube blank on the second receiving conveying mechanism and guides the lifted process tube blank to roll onto the first guide rack. Among them, the process tube blank falling on the first guide rack will roll along the first guide rack to the lower end under the action of gravity and then be stopped by the first blocking component, and then the first transfer loading mechanism lifts the process tube blank stopped by the first blocking component on the first guide rack and makes the lifted process tube blank roll onto the unloading conveying mechanism, and then the unloading conveying mechanism transports the process tube blank to the unloading position. In this embodiment, the blanks and process tubes can be automatically conveyed, and the blanks can be automatically sawed into process tubes without the need for manual assistance, thereby greatly improving production efficiency, reducing labor costs and workers' labor intensity, and having a higher degree of automation than the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of the automatic connection equipment for cutting and conveying blanks for a steel pipe production line of the present invention; Figure 2 It is a top view of the automatic connection equipment for cutting and conveying blanks for a steel pipe production line of the present invention; Figure 3 It is a structural schematic diagram of the third material receiving and conveying mechanism, the third transfer and conveying mechanism, the third sawing mechanism, the third feeding and feeding mechanism, the third supporting mechanism, the second raw material storage rack, the second feeding and conveying mechanism, the third intermediate storage rack, the third material turning mechanism and the third handling mechanism of the present invention; Figure 4 It is a structural schematic diagram of the first material receiving and conveying mechanism, the first transfer and conveying mechanism, the first sawing mechanism, the first feeding and feeding mechanism, the first supporting mechanism, the first raw material storage rack, the first feeding and conveying mechanism, the first intermediate storage rack, the first material turning mechanism and the first handling mechanism of the present invention; Figure 5It is a structural schematic diagram of the first sawing mechanism, the first feeding mechanism, the first supporting mechanism, the first feeding and conveying mechanism, the first intermediate storage rack, the first turning mechanism and the first transport mechanism of the present invention; Figure 6 It is a partial detailed view of the first supporting mechanism, the first feeding and conveying mechanism, the first intermediate storage rack, the first turning mechanism and the first transport mechanism of the present invention; Figure 7 It is a structural schematic diagram of the first sawing mechanism, the first feeding mechanism and the first supporting mechanism of the present invention; Figure 8 It is a structural schematic diagram of the first rear length measuring device of the present invention; Fig. 9 It is a structural schematic diagram of the first front length measuring device of the present invention; Fig.10 is a side view of a first front length measuring device of the present invention; Fig.11 It is a structural schematic diagram of the first transfer and conveying mechanism, the first material pushing mechanism and the first storage rack of the present invention; Fig.12 It is a structural schematic diagram of the second transfer and conveying mechanism, the second material pushing mechanism, the third storage rack and the fourth storage rack of the present invention; Fig.13 It is a structural schematic diagram of the first material shifting mechanism of the present invention; Fig.14 It is a partial structural schematic diagram of the automatic connection equipment for cutting and conveying blanks for a steel pipe production line of the present invention; Fig.15 for Fig.14 Partial detail of point A in the middle; Fig.16 for Fig.14 Partial detail of point B in the middle; Fig.17 for Fig.14 Partial detail of point C in the middle; Fig.18 for Fig.14 Partial detail of point D in the middle. DETAILED DESCRIPTION

[0019] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings.

[0020] like Figures 1 to 18As shown, a billet cutting and conveying automatic connection equipment for a steel pipe production line includes a first transfer unloading mechanism 1, a second transfer unloading mechanism 2, a first material guide frame 3, a first transfer loading mechanism 4, a material discharging conveying mechanism 5, a first material receiving conveying mechanism 6, a first transfer conveying mechanism 7, a first sawing mechanism 8, a first feeding mechanism 9 and a first supporting mechanism 10 arranged in sequence from front to back, and a second material receiving conveying mechanism 11, a second transfer conveying mechanism 12, a second sawing mechanism 13, a second feeding mechanism 14 and a second supporting mechanism 15 arranged in sequence from front to back; a billet 16 is placed in the first supporting mechanism 10; the first feeding mechanism 9 is used to clamp the billet 16 in the first supporting mechanism 10 and The first sawing mechanism 8 drives the blank 16 to move forward until it extends into the first sawing mechanism 8; the first sawing mechanism 8 is used to cut the blank 16 to obtain a process tube blank of a certain length; the first transfer conveying mechanism 7 is used to receive the process tube blank cut by the first sawing mechanism 8 and convey the process tube blank to the first receiving conveying mechanism 6, and the first receiving conveying mechanism 6 is used to receive the process tube blank conveyed by the first transfer conveying mechanism 7; the second supporting mechanism 15 is provided with the blank 16; the second feeding mechanism 14 is used to clamp the blank 16 in the second supporting mechanism 15 and drive the blank 16 to move forward until it extends into the second sawing mechanism 13; the second sawing mechanism 13 is used to cut the blank 16 to obtain The second transfer conveying mechanism 12 is used to receive the process tube blanks cut by the second sawing mechanism 13 and convey the process tube blanks to the second receiving conveying mechanism 11, and the second receiving conveying mechanism 11 is used to receive the process tube blanks conveyed by the second transfer conveying mechanism 12; the first guide frame 3 is inclined, and the lower end of the first guide frame 3 is connected with a first blocking component for blocking the process tube blanks on the first guide frame 3. The process tube blanks falling on the first guide frame 3 will roll along the first guide frame 3 to the lower end and then be stopped by the first blocking component; the first receiving conveying mechanism 6 is located at the higher end of the first guide frame 3. The discharging conveying mechanism 5 is located on the lower side of the first material guide frame 3, and the second material receiving conveying mechanism 11 and the second transfer unloading mechanism 2 are both located above the first material guide frame 3; the first transfer unloading mechanism 1 is located between the higher end of the first material guide frame 3 and the first material receiving conveying mechanism 6, and the first transfer unloading mechanism 1 is used to lift the process tube blank on the first material receiving conveying mechanism 6 and guide the lifted process tube blank to roll onto the first material guide frame 3; the second transfer unloading mechanism 2 is located on one side of the second material receiving conveying mechanism 11 and is used to lift the process tube blank on the second material receiving conveying mechanism 11 and guide the lifted process tube blank to roll onto the first material guide frame 3;The first transfer loading mechanism 4 is located between the lower end of the first material guide frame 3 and the material discharging conveying mechanism 5. The first transfer loading mechanism 4 is used to lift the process tube blank on the first material guide frame 3 and make the lifted process tube blank roll onto the material discharging conveying mechanism 5. The material discharging conveying mechanism 5 receives the process tube blank and is used to convey the process tube blank to the unloading position.

[0021] Specifically, when the blank 16 is conveyed to the first supporting mechanism 10, the first feeding mechanism 9 will clamp the blank 16 in the first supporting mechanism 10 and drive the blank 16 to move forward until it extends into the first sawing mechanism 8, and then the first sawing mechanism 8 cuts the blank 16 and obtains the process tube blank, and then the first transfer conveying mechanism 7 receives the process tube blank cut by the first sawing mechanism 8 and conveys the process tube blank to the first material receiving conveying mechanism 6, and the first material receiving conveying mechanism 6 receives the process tube blank conveyed by the first transfer conveying mechanism 7, and then the first transfer unloading mechanism 1 lifts the process tube blank on the first material receiving conveying mechanism 6 and guides the lifted process tube blank to roll onto the first material guide rack 3. At the same time, when the blank 16 is conveyed to the second supporting mechanism 15, the second feeding mechanism 14 will clamp the blank 16 in the second supporting mechanism 15 and drive the blank 16 to move forward until it extends into the second sawing mechanism 13, and then the second sawing mechanism 13 cuts the blank 16 and obtains the process tube billet, and then the second transfer conveying mechanism 12 receives the process tube billet cut by the second sawing mechanism 13 and conveys the process tube billet to the second material receiving conveying mechanism 11, and the second material receiving conveying mechanism 11 receives the process tube billet conveyed by the second transfer conveying mechanism 12, and then the second transfer unloading mechanism 2 lifts the process tube billet on the second material receiving conveying mechanism 11 and guides the lifted process tube billet to roll onto the first material guide rack 3. More specifically, the process tube blanks falling on the first guide rack 3 will roll along the first guide rack 3 to the lower end under the action of gravity and then be stopped by the first blocking component, and then the first transfer loading mechanism 4 lifts the process tube blanks stopped by the first blocking component on the first guide rack 3 and makes the lifted process tube blanks roll onto the unloading conveying mechanism 5, and then the unloading conveying mechanism 5 conveys the process tube blanks to the unloading position. In this embodiment, the blanks 16 and process tube blanks can be automatically conveyed, and the blanks 16 can be automatically sawed into process tube blanks without manual auxiliary operation, which greatly improves production efficiency, reduces labor costs and labor intensity of workers, and has a higher degree of automation than the prior art.

[0022] like Figures 1 to 18As shown, the billet cutting and conveying automated connection equipment for the steel pipe production line may also include a third transfer unloading mechanism 17, a second guide frame 18, a second transfer loading mechanism 19, and a third material receiving and conveying mechanism 20, a third transfer conveying mechanism 21, a third sawing mechanism 22, a third feeding mechanism 23 and a third supporting mechanism 24 arranged in sequence from front to back; the third supporting mechanism 24 is provided with a billet 16; the third feeding mechanism 23 is used to clamp the billet 16 in the third supporting mechanism 24 and drive the billet 16 to move forward to extend into the third supporting mechanism The third sawing mechanism 22 is used to cut the blank 16 to obtain a certain length of process tube blank; the third transfer conveying mechanism 21 is used to receive the process tube blank cut by the third sawing mechanism 22 and convey the process tube blank to the third receiving and conveying mechanism 20, and the third receiving and conveying mechanism 20 is used to receive the process tube blank conveyed by the third transfer conveying mechanism 21; the second guide frame 18 is inclined, and a lower end portion of the second guide frame 18 is connected to block the process tube blank on the second guide frame 18. The second blocking component 25 of the tube blank, the process tube blank falling on the second guide rack 18 will roll along the second guide rack 18 to the lower end and then be stopped by the second blocking component 25; the third material receiving conveying mechanism 20 is located on the higher side of the second guide rack 18, and the discharging conveying mechanism 5 is located on the lower side of the second guide rack 18; wherein, the first guide rack 3 is located on one side of the discharging conveying mechanism 5, and the second guide rack 18 is located on the other side of the discharging conveying mechanism 5; the third transfer unloading mechanism 17 is located Between the higher end of the second material guide rack 18 and the third material receiving and conveying mechanism 20, the third transfer unloading mechanism 17 is used to lift the process tube blanks on the third material receiving and conveying mechanism 20 and guide the lifted process tube blanks to roll onto the second material guide rack 18; the second transfer loading mechanism 19 is located between the lower end of the second material guide rack 18 and the discharging conveying mechanism 5, and the second transfer loading mechanism 19 is used to lift the process tube blanks on the second material guide rack 18 and allow the lifted process tube blanks to roll onto the discharging conveying mechanism 5. Specifically, when the blank 16 is conveyed to the third supporting mechanism 24, the third feeding mechanism 23 will clamp the blank 16 in the third supporting mechanism 24 and drive the blank 16 to move forward until it extends into the third sawing mechanism 22, and then the third sawing mechanism 22 cuts the blank 16 and obtains a process tube billet, and then the third transfer conveying mechanism 21 receives the process tube billet cut by the third sawing mechanism 22 and conveys the process tube billet to the third material receiving and conveying mechanism 20, and the third material receiving and conveying mechanism 20 receives the process tube billet conveyed by the third transfer conveying mechanism 21; then the third transfer unloading mechanism 17 lifts the process tube billet on the third material receiving and conveying mechanism 20 and guides the lifted process tube billet to roll onto the second material guide rack 18.To be more specific, the process tube blank that falls on the second guide rack 18 will roll along the second guide rack 18 to the lower end under the action of gravity and then be stopped by the second blocking component 25, and then the second transfer loading mechanism 19 lifts the process tube blank that is stopped by the second blocking component 25 on the second guide rack 18 and makes the lifted process tube blank roll onto the unloading conveying mechanism 5, and then the unloading conveying mechanism 5 conveys the process tube blank to the unloading position. In this embodiment, the blank 16 can be cut together by the first sawing mechanism 8, the second sawing mechanism 13 and the third sawing mechanism 22 to obtain the process tube blank, and the automatic transfer and transportation of the process tube blank can also be completed, which greatly improves the production efficiency. Among them, the specific structures of the first sawing mechanism 8, the second sawing mechanism 13 and the third sawing mechanism 22 are all prior arts well known to those skilled in the art, and will not be described in detail in this embodiment.

[0023] like Figures 1 to 18 As shown, the first supporting mechanism 10, the second supporting mechanism 15 and the third supporting mechanism 24 respectively include a plurality of supporting components 26 arranged in sequence and spaced apart along the front-to-back direction and a plurality of limiting components 27 arranged in sequence and spaced apart along the front-to-back direction; the supporting component 26 includes a supporting bracket 28 and a supporting roller 29, the supporting bracket 28 is fixedly arranged, the supporting roller 29 is rotatably connected to the supporting bracket 28 and is used to support the lower end of the blank 16; the limiting component 27 includes a limiting bracket 30, a left limiting roller 31 and a right limiting roller 32, the limiting bracket 30 is fixedly arranged, the left limiting roller 31 is rotatably connected to the limiting bracket 30 and is used to abut against the left side of the blank 16, the right limiting roller 32 is rotatably connected to the limiting bracket 30 and is used to abut against the right side of the blank 16, thereby being able to limit the blank 16 to prevent the blank 16 from falling off the supporting roller 29. Specifically, the principle of the first supporting mechanism 10 is as follows: when the blank 16 is transported to the first supporting mechanism 10, the supporting roller 29 in the first supporting mechanism 10 supports the lower end of the blank 16, and the left limiting roller 31 and the right limiting roller 32 in the first supporting mechanism 10 respectively press against the left and right sides of the blank 16. When the first feeding mechanism 9 clamps the blank 16 in the first supporting mechanism 10 and drives the blank 16 to move forward, the blank 16 moves forward on the supporting roller 29 and extends into the first sawing mechanism 8. More specifically, the principles of the second supporting mechanism 15 and the third supporting mechanism 24 are the same as those of the first supporting mechanism 10. In this embodiment, the supporting assembly 26 and the limiting assembly 27 are arranged alternately in sequence. Among them, the supporting bracket 28 and the limiting bracket 30 in the first supporting mechanism 10 are fixedly connected to the first intermediate storage rack 76, the supporting bracket 28 and the limiting bracket 30 in the second supporting mechanism 15 are fixedly connected to the second intermediate storage rack 77, and the supporting bracket 28 and the limiting bracket 30 in the third supporting mechanism 24 are fixedly connected to the third intermediate storage rack 87.

[0024] like Figures 1 to 18 As shown, the first feeding mechanism 9, the second feeding mechanism 14 and the third feeding mechanism 23 respectively include a feeding frame, a feeding slide 33, a clamping mechanism and a feeding drive mechanism; the feeding slide 33 is slidably connected to the feeding frame along the front-back direction; the clamping mechanism is connected to the feeding slide 33 and is used to clamp the blank 16; the feeding drive mechanism is connected to the feeding slide 33 and is used to drive the feeding slide 33 to move forward and backward, thereby driving the blank 16 clamped by the clamping mechanism to move forward. Specifically, the working principle of the first feeding mechanism 9 is explained by taking the first feeding mechanism 9 as an example, and the working principles of the second feeding mechanism 14 and the third feeding mechanism 23 are the same as those of the first feeding mechanism 9. The clamping mechanism in the first feeding mechanism 9 clamps the blank 16 in the first supporting mechanism 10, and then the feeding drive mechanism in the first feeding mechanism 9 drives the feeding slide 33 to move forward, thereby driving the clamped blank 16 to move forward until it extends into the first sawing mechanism 8. More specifically, the feeding drive mechanism includes a screw rod 34, a nut, and a feeding motor 35, wherein the screw rod 34 is rotatably connected to the feeding frame, the nut is connected to the feeding slide 33 and is connected in cooperation with the screw rod 34, and the feeding motor 35 is connected to the screw rod 34 and is used to drive the screw rod 34 to rotate, thereby being able to drive the nut and the feeding slide 33 to move forward and backward, thereby being able to drive the blank 16 clamped by the clamping mechanism to move forward. Among them, when the feeding slide 33 moves forward, the clamping mechanism clamps the blank 16, and when the feeding slide 33 moves backward, the clamping mechanism releases the blank 16. More specifically, the clamping mechanism includes a fixed clamp block 36, a movable clamp block 37 and a clamping cylinder 38, the fixed clamp block 36 is connected to the feeding slide 33, the movable clamp block 37 is connected to the clamping cylinder 38, the clamping cylinder 38 is connected to the feeding slide 33, and the clamping cylinder 38 is used to drive the movable clamp block 37 to move toward the fixed clamp block 36 so that the movable clamp block 37 and the fixed clamp block 36 clamp the blank 16.

[0025] like Figures 1 to 18As shown, the billet cutting and conveying automatic connection equipment for the steel pipe production line may also include a first rear length measuring device for measuring the length of the billet 16 on the first supporting mechanism 10, a second rear length measuring device for measuring the length of the billet 16 on the second supporting mechanism 15, a third rear length measuring device for measuring the length of the billet 16 on the third supporting mechanism 24, a first front length measuring device for detecting the cutting length of the process tube billet in the first sawing mechanism 8, a second front length measuring device for detecting the cutting length of the process tube billet in the second sawing mechanism 13, and a third front length measuring device for detecting the cutting length of the process tube billet in the third sawing mechanism 22; Wherein, the first rear length measuring device includes a first distance meter 39 and a first end surface sensor 40; the first end surface sensor 40 is located at one side of the first feeding mechanism 9, and the first end surface sensor 40 is used to send a signal to the controller when the front end surface of the blank 16 in the first supporting mechanism 10 moves to align with the first end surface sensor 40; the first distance meter 39 is located behind the blank 16 in the first supporting mechanism 10, and the controller is used to control the first distance meter 39 to measure the distance to the rear end surface of the blank 16 in the first supporting mechanism 10 when receiving the signal sent by the first end surface sensor 40; Wherein, the second rear length measuring device comprises a second distance meter 41 and a second end surface sensor 42; the second end surface sensor 42 is located at one side of the second feeding mechanism 14, and the second end surface sensor 42 is used to send a signal to the controller when the front end surface of the blank 16 in the second supporting mechanism 15 moves to align with the second end surface sensor 42; the second distance meter 41 is located behind the blank 16 in the second supporting mechanism 15, and the controller is used to control the second distance meter 41 to measure the distance to the rear end surface of the blank 16 in the second supporting mechanism 15 when receiving the signal sent by the second end surface sensor 42; Wherein, the third rear length measuring device includes a third rangefinder 43 and a third end surface sensor 44; the third end surface sensor 44 is located on one side of the third feeding mechanism 23, and the third end surface sensor 44 is used to send a signal to the controller when the front end surface of the blank 16 in the third supporting mechanism 24 moves to align with the third end surface sensor 44; the third rangefinder 43 is located behind the blank 16 in the third supporting mechanism 24, and the controller is used to control the third rangefinder 43 to measure the distance to the rear end surface of the blank 16 in the third supporting mechanism 24 when receiving the signal sent by the third end surface sensor 44; The first front length measuring device includes a first mounting frame 45, a first sliding bracket 46, a first photoelectric switch 47, a first origin sensor 48 and a first servo mechanism 49; the first sliding bracket 46 is located in front of the first sawing mechanism 8, and the first sliding bracket 46 is slidably connected to the first mounting frame 45 along the front-back direction; the first servo mechanism 49 is connected to the first mounting frame 45 and connected to the first sliding bracket 46, and the first servo mechanism 49 is used to drive the first sliding bracket 46 to move forward and backward and to count and measure the moving distance of the first sliding bracket 46; the first photoelectric switch 47 is ... servo mechanism 49 is used to drive the first sliding bracket 46 to move forward and backward and to count and measure the moving distance of the first sliding bracket 46; the first servo mechanism 49 is used to drive the first sliding bracket 46 to move forward and backward and to count and measure the moving distance of the first sliding bracket 46; the first servo mechanism The first photoelectric switch 47 senses the front end of the blank 16 and generates a signal to send to the first servo mechanism 49 when the first sliding bracket 46 moves to align with the front end of the blank 16 in the first sawing mechanism 8; the first origin sensor 48 is connected to the first mounting bracket 45, is located in front of the first sawing mechanism 8 and is connected to the first servo mechanism 49 by signal. When the first sliding bracket 46 moves to align with the first origin sensor 48, the first origin sensor 48 senses the first sliding bracket 46 and generates a signal to send to the first servo mechanism 49; Wherein, the second front length measuring device comprises a second mounting frame, a second sliding bracket, a second photoelectric switch, a second origin sensor and a second servo mechanism; the second sliding bracket is located in front of the second sawing mechanism 13, and the second sliding bracket is slidably connected to the second mounting frame along the front-back direction; the second servo mechanism is connected to the second mounting frame and connected to the second sliding bracket, and the second servo mechanism is used to drive the second sliding bracket to move forward and backward and to count and measure the moving distance of the second sliding bracket; the second photoelectric switch is connected to the second sliding bracket and is connected to the second servo mechanism signal, when the second sliding bracket moves to align with the front end surface of the blank 16 in the second sawing mechanism 13, the second photoelectric switch senses the front end surface of the blank 16 and generates a signal to send to the second servo mechanism; the second origin sensor is connected to the second mounting frame, located in front of the second sawing mechanism 13 and is connected to the second servo mechanism signal, when the second sliding bracket moves to align with the second origin sensor, the second origin sensor senses the second sliding bracket and generates a signal to send to the second servo mechanism; Wherein, the third front length measuring device includes a third mounting frame, a third sliding bracket, a third photoelectric switch, a third origin sensor and a third servo mechanism; the third sliding bracket is located in front of the third sawing mechanism 22, and the third sliding bracket is slidably connected to the third mounting frame along the front-to-back direction; the third servo mechanism is connected to the third mounting frame and connected to the third sliding bracket, and the third servo mechanism is used to drive the third sliding bracket to move forward and backward and to count and measure the moving distance of the third sliding bracket; the third photoelectric switch is connected to the third sliding bracket and is connected to the third servo mechanism signal, when the third sliding bracket moves to align with the front end surface of the blank 16 in the third sawing mechanism 22, the third photoelectric switch senses the front end surface of the blank 16 and generates a signal to send to the third servo mechanism; the third origin sensor is connected to the third mounting frame, located in front of the third sawing mechanism 22 and is connected to the third servo mechanism signal, when the third sliding bracket moves to align with the third origin sensor, the third origin sensor senses the third sliding bracket and generates a signal to send to the third servo mechanism.

[0026] Specifically, the working principle of the first rear length measuring device is explained by taking the first rear length measuring device as an example, and the working principles of the second rear length measuring device and the third rear length measuring device are the same as those of the first rear length measuring device. Among them, the first sawing mechanism 8 has a saw blade 50 for cutting the blank 16, the distance L1 from the first rangefinder 39 to the saw blade 50 in the first sawing mechanism 8 is a known value, and the distance L2 from the first end face sensor 40 to the saw blade 50 in the first sawing mechanism 8 is a known value. When the blank 16 is transported to the first supporting mechanism 10, the first feeding mechanism 9 clamps the blank 16 in the first supporting mechanism 10 and drives the blank 16 to move forward. When the front end face of the blank 16 moves to align with the first end face sensor 40, the first end face sensor 40 generates a signal and sends it to the controller, and then the controller controls the first feeding mechanism 9 to stop driving the blank 16 to move, and controls the first rangefinder 39 to measure the distance L3 from the first rangefinder 39 to the rear end face of the blank 16 in the first supporting mechanism 10, so that the length of the blank 16 in the first supporting mechanism 10 can be obtained as L1-L2-L3. At this time, if the blank 16 is to be cut to obtain a process tube blank with a length of 1460 mm, the first feeding mechanism 9 is controlled to drive the blank 16 to move forward by a distance of L2+1460 mm, so that the distance between the front end face of the blank 16 and the saw blade 50 is equal to 1460 mm, and then the blank 16 is cut by the saw blade 50 in the first sawing mechanism 8 to obtain a process tube blank with a length of 1460 mm. Specifically, the first front length measuring device is used to detect whether the cutting length of the process tube blank in the first sawing mechanism 8 is correct, the second front length measuring device is used to detect whether the cutting length of the process tube blank in the second sawing mechanism 13 is correct, and the third front length measuring device is used to detect whether the cutting length of the process tube blank in the third sawing mechanism 22 is correct. The following takes the first front length measuring device as an example to illustrate the working principle of the first front length measuring device, and the working principles of the second front length measuring device and the third front length measuring device are the same as those of the first front length measuring device. Among them, the distance L4 between the first origin sensor 48 and the saw blade 50 in the first sawing mechanism 8 is a known value. As mentioned above, when it is necessary to cut the blank 16 to obtain a process tube blank with a length of 1460 mm, the first feeding mechanism 9 is controlled to drive the blank 16 to move forward a distance of L2 + 1460 mm. Then, the distance between the front end face of the blank 16 and the saw blade 50 should theoretically be 1460 mm.At this time, the first servo mechanism 49 drives the first sliding bracket 46 to move backward toward the first sawing mechanism 8. When the first sliding bracket 46 moves to align with the first origin sensor 48, the first origin sensor 48 senses the first sliding bracket 46 and generates a signal to send to the first servo mechanism 49. Then, after receiving the signal from the first origin sensor 48, the first servo mechanism 49 starts to count and measure the moving distance of the first sliding bracket 46. When the first sliding bracket 46 moves to align with the front end surface of the blank 16 in the first sawing mechanism 8, the first photoelectric switch 47 senses the front end surface of the blank 16. And generate a signal to send to the first servo mechanism 49, then the first servo mechanism 49 stops driving the first sliding bracket 46 to move and stops counting and measuring the length after receiving the signal from the first photoelectric switch 47, so that the distance L5 between the front end face of the blank 16 and the first origin sensor 48 can be measured. Therefore, L5-L4 is the actual distance between the front end face of the blank 16 and the saw blade 50. If L5-L4=1460mm, the saw blade 50 in the first sawing mechanism 8 can cut the blank 16 to obtain a process tube blank with a length of 1460mm. If L5-L4≠1460mm, an alarm is issued.

[0027] More specifically, the first servo mechanism 49, the second servo mechanism and the third servo mechanism can all be synchronous belt mechanisms, the synchronous belt mechanisms are driven by servo motors, the servo motors are controlled by controllers, and encoders are installed in the servo motors. By counting the number of rotations of the servo motor in the first servo mechanism 49, the moving distance of the first sliding bracket 46 can be counted and measured, by counting the number of rotations of the servo motor in the second servo mechanism, the moving distance of the second sliding bracket can be counted and measured, and by counting the number of rotations of the servo motor in the third servo mechanism, the moving distance of the third sliding bracket can be counted and measured. In this embodiment, the first mounting frame 45 can be connected to the transfer frame 62 in the first transfer conveying mechanism 7, the second mounting frame can be connected to the transfer frame 62 in the second transfer conveying mechanism 12, and the third mounting frame can be connected to the transfer frame 62 in the third transfer conveying mechanism 21. The first sliding bracket 46, the second sliding bracket and the third sliding bracket can all be door-type structures, and the first photoelectric switch, the second photoelectric switch and the third photoelectric switch can all be opposite-beam type.

[0028] like Figures 1 to 18As shown, the billet cutting and conveying automatic connection equipment for the steel pipe production line may also include a first storage rack 51, a second storage rack 52, a third storage rack 53, a fourth storage rack 54, a fifth storage rack 55, a sixth storage rack 56, a first pushing mechanism 57, a second pushing mechanism 58, a third pushing mechanism 59, a first unloading mechanism 60 and a second unloading mechanism 61; the first storage rack 51 is located at one side of the first transfer conveying mechanism 7; the second storage rack 52 is located at one side of the first receiving conveying mechanism 6; The third storage rack 53 is located on one side of the second transfer conveying mechanism 12, and the fourth storage rack 54 is located on the other side of the second transfer conveying mechanism 12; the fifth storage rack 55 is located on one side of the third transfer conveying mechanism 21; the sixth storage rack 56 is located on one side of the third receiving material conveying mechanism 20; the first pushing mechanism 57 is connected to the first transfer conveying mechanism 7 and is used to push the process tube blank on the first transfer conveying mechanism 7 into the first storage rack 51; the first unloading mechanism 60 is connected to the first receiving material conveying mechanism 6 and is used to lift the process tube blank on the first receiving material conveying mechanism 6 and guide the lifted process tube blank to the first receiving material conveying mechanism 6. The billet rolls down to the second storage rack 52; the second pushing mechanism 58 is connected to the second transfer conveying mechanism 12 and is used to push the process tube billet on the second transfer conveying mechanism 12 into the third storage rack 53 or into the fourth storage rack 54; the third pushing mechanism 59 is connected to the third transfer conveying mechanism 21 and is used to push the process tube billet on the third transfer conveying mechanism 21 into the fifth storage rack 55; the second unloading mechanism 61 is connected to the third material receiving conveying mechanism 20 and is used to lift the process tube billet on the third material receiving conveying mechanism 20 and guide the lifted process tube billet to roll down to the sixth storage rack 56.

[0029] Specifically, in actual production, process tube blanks of different lengths are required, including but not limited to process tube blanks of 990mm, 1460mm and 1610mm. When the length of the blank 16 is 9900mm, if all are sawn into process tube blanks of 1460mm, 6 process tube blanks of 1460mm and one tail of 1140mm can be obtained, and the tail of 1140mm cannot be fully utilized, which will cause waste. Therefore, in order to make full use of the blank 16, the 9900mm blank 16 will be sawn into 5 process tube blanks of 1460mm, 1 process tube blank of 1610mm and 1 process tube blank of 990mm in actual production. Among them, the process tube blank of 1460mm cut by the first sawing mechanism 8 is conveyed to the first material receiving and conveying mechanism 6 by the first transfer conveying mechanism 7, and then the process tube blank of 1460mm on the first material receiving and conveying mechanism 6 is transported to the first material guide rack 3 by the first transfer unloading mechanism 1. The 1610 mm process tube blank cut by the first sawing mechanism 8 is received and conveyed by the first transfer conveying mechanism 7, and then the 1610 mm process tube blank on the first transfer conveying mechanism 7 is pushed down to the first storage rack 51 by the first pushing mechanism 57 for storage. The 990 mm process tube blank cut by the first sawing mechanism 8 is conveyed to the first receiving conveying mechanism 6 by the first transfer conveying mechanism 7, and then the 990 mm process tube blank on the first receiving conveying mechanism 6 is transported to the second storage rack 52 by the first unloading mechanism 60 for storage. Among them, the 1460 mm process tube blank cut by the second sawing mechanism 13 is conveyed to the second receiving conveying mechanism 11 by the second transfer conveying mechanism 12, and then the 1460 mm process tube blank on the second receiving conveying mechanism 11 is transported to the first guide rack 3 by the second transfer unloading mechanism 2. The 1610 mm process tube blank cut by the second sawing mechanism 13 is received and conveyed by the second transfer conveying mechanism 12, and then the 1610 mm process tube blank on the second transfer conveying mechanism 12 is pushed down to the third storage rack 53 by the second pushing mechanism 58 for storage. The 990 mm process tube blank cut by the second sawing mechanism 13 is received and conveyed by the second transfer conveying mechanism 12, and then the 990 mm process tube blank on the second transfer conveying mechanism 12 is pushed down to the fourth storage rack 54 by the second pushing mechanism 58 for storage. Among them, the 1460 mm process tube blank cut by the third sawing mechanism 22 is conveyed to the third receiving material conveying mechanism 20 by the third transfer conveying mechanism 21, and then the 1460 mm process tube blank on the third receiving material conveying mechanism 20 is transported to the second guide rack 18 by the third transfer unloading mechanism 17. The 1610 mm process tube blank cut by the third sawing mechanism 22 is taken over and conveyed by the third transfer and conveying mechanism 21 , and then the third pushing mechanism 59 pushes the 1610 mm process tube blank on the third transfer and conveying mechanism 21 to the fifth storage rack 55 for storage.The 990 mm process tube blank cut by the third sawing mechanism 22 is transported to the third receiving material conveying mechanism 20 by the third transfer conveying mechanism 21, and then the 990 mm process tube blank on the third receiving material conveying mechanism 20 is transported to the sixth storage rack 56 by the second unloading mechanism 61 for storage. In this embodiment, the first receiving material conveying mechanism 6 is located between the first material guide rack 3 and the second storage rack 52, and the third receiving material conveying mechanism 20 is located between the second material guide rack 18 and the sixth storage rack 56. The specific structures of the first storage rack 51, the second storage rack 52, the third storage rack 53, the fourth storage rack 54, the fifth storage rack 55 and the sixth storage rack 56 are all existing technologies well known to those skilled in the art, and are not described in detail in this embodiment.

[0030] like Figures 1 to 18 As shown, the first transfer conveying mechanism 7, the second transfer conveying mechanism 12 and the third transfer conveying mechanism 21 respectively include a transfer frame 62, a transfer driving mechanism 63, a driving shaft, a driven shaft, a plurality of driving sprockets 64, a plurality of driven sprockets 65 and a plurality of conveying chains 66; the conveying chains 66 correspond to the driving sprockets 64 and the driven sprockets 65 one by one; the driving shaft and the driven shaft are respectively rotatably connected to the transfer frame 62; the driving sprockets 64 are connected in parallel to the driving shaft; the driven sprockets 65 are connected in parallel to the driven shaft; the conveying chains 66 are connected to the pairs The conveying chain 66 is used to receive the process tube blanks obtained by cutting on the corresponding driving sprocket 64 and the corresponding driven sprocket 65; the transfer driving mechanism 63 is connected to the driving shaft and is used to drive the driving shaft and the driving sprocket 64 to rotate, thereby driving the conveying chain 66 to move to convey the process tube blanks; specifically, the cut process tube blanks will fall on the conveying chain 66, and then the transfer driving mechanism 63 drives the driving shaft to rotate and thereby drives the conveying chain 66 to move to convey the process tube blanks; specifically, the transfer driving mechanism 63 includes a transfer motor, and the transfer motor and the driving shaft are connected by a chain drive.

[0031] The first pushing mechanism 57 includes a base plate 67, a first pushing plate 68 and a first pushing cylinder 69; the base plate 67 is fixedly connected to the transfer frame 62 in the first transfer conveying mechanism 7; the first pushing plate 68 is slidably connected to the base plate 67; the first pushing cylinder 69 is connected to the base plate 67, and the first pushing cylinder 69 is connected to the first pushing plate 68 and is used to drive the first pushing plate 68 to move so as to push the process tube blank on the conveying chain 66 in the first transfer conveying mechanism 7 to the first storage rack 51; Among them, the second pushing mechanism 58 includes a support frame 70, a second pushing plate 71 and a second pushing cylinder 72; the support frame 70 is fixedly connected to the transfer frame 62 in the second transfer conveying mechanism 12, and the support frame 70 is located above the conveying chain 66 in the second transfer conveying mechanism 12; the second pushing plate 71 is slidably connected to the support frame 70 and is located above the conveying chain 66 in the second transfer conveying mechanism 12; the second pushing cylinder 72 is connected to the support frame 70 and connected to the second pushing plate 71, the second pushing cylinder 72 is used to drive the second pushing plate 71 to move to one side to push the process tube blank on the conveying chain 66 in the second transfer conveying mechanism 12 into the third storage rack 53, and the second pushing cylinder 72 is also used to drive the second pushing plate 71 to move to the other side to push the process tube blank on the conveying chain 66 in the second transfer conveying mechanism 12 into the fourth storage rack 54; Among them, the third pushing mechanism 59 includes a base plate, a third pushing plate and a third pushing cylinder; the base plate is fixedly connected to the transfer frame 62 in the third transfer conveying mechanism 21; the third pushing plate is slidably connected to the base plate; the third pushing cylinder is connected to the base plate, and the third pushing cylinder is connected to the third pushing plate and is used to drive the third pushing plate to move so as to push the process tube blanks on the conveying chain 66 in the third transfer conveying mechanism 21 into the fifth storage rack 55.

[0032] Specifically, the automatic connection equipment for cutting and conveying billets for the steel pipe production line also includes a first raw material storage rack 73, a first material moving mechanism 74, a first material feeding and conveying mechanism 75, a first intermediate storage rack 76, a second intermediate storage rack 77, a first material turning mechanism 78, a second material turning mechanism 79, a first conveying mechanism 80 and a second conveying mechanism 81; the first raw material storage rack 73 stores billets 16, the first raw material storage rack 73 is tilted so that the billets 16 roll toward the lower end on the first raw material storage rack 73, and the lower end of the first raw material storage rack 73 is connected to a first stopper 82 for blocking the billets 16 on the first raw material storage rack 73; specifically, the first raw material storage rack 73 stores billets 16, the first raw material storage rack 73 is tilted so that the billets 16 roll toward the lower end on the first raw material storage rack 73, and the lower end of the first raw material storage rack 73 is connected to a first stopper 82 for blocking the billets 16 on the first raw material storage rack 73; A plurality of blanks 16 arranged in sequence are stored on a raw material storage rack 73. The blanks 16 on the first raw material storage rack 73 will roll toward the lower end due to gravity until the first blank 16 abuts against the first stopper 82 and the blank 16 stops rolling; the first material moving mechanism 74 and the first material feeding and conveying mechanism 75 are both located at the lower end of the first raw material storage rack 73, the first material moving mechanism 74 is used to move the blanks 16 located at the lower end of the first raw material storage rack 73 to the first material feeding and conveying mechanism 75, and the first material feeding and conveying mechanism 75 is used to convey the blanks 16 forward to the first material taking position; the first intermediate storage rack 76 is located at the first material feeding and conveying mechanism 7 5, the second intermediate storage rack 77 is located on one side of the first material picking position on the first feeding and conveying mechanism 75, the first turning mechanism 78 is used to lift the blank 16 in the first material picking position on the first feeding and conveying mechanism 75 and guide the lifted blank 16 to roll onto the first intermediate storage rack 76, the second turning mechanism 79 is used to lift the blank 16 in the first material picking position on the first feeding and conveying mechanism 75 and guide the lifted blank 16 to roll onto the second intermediate storage rack 77; the first intermediate storage rack 76 is inclined so that the blank 16 rolls to the lower end on the first intermediate storage rack 76, and the first intermediate storage rack 76 is tilted. A first stopper 83 for blocking the blanks 16 on the first intermediate storage rack 76 is connected to a lower end portion of the rack 76; the first transport mechanism 80 and the first supporting mechanism 10 are both arranged on a lower end portion of the first intermediate storage rack 76, and the first transport mechanism 80 is used to transport the blanks 16 located on the lower end portion of the first intermediate storage rack 76 to the first supporting mechanism 10; the second intermediate storage rack 77 is inclined so that the blanks 16 roll toward the lower end on the second intermediate storage rack 77, and a second stopper for blocking the blanks 16 on the second intermediate storage rack 77 is connected to a lower end portion of the second intermediate storage rack 77;The second transport mechanism 81 and the second supporting mechanism 15 are both disposed on a lower end portion of the second intermediate storage rack 77, and the second transport mechanism 81 is used to transport the blank 16 located on a lower end portion of the second intermediate storage rack 77 to the second supporting mechanism 15. ;

[0033] The automatic connection equipment for cutting and conveying billets for steel pipe production line also includes a second material storage rack 84, a second material moving mechanism 85, a second material feeding and conveying mechanism 86, a third intermediate storage rack 87, a third material turning mechanism 88 and a third handling mechanism 89; the second material storage rack 84 stores billets 16, the second material storage rack 84 is tilted so that the billets 16 roll toward the lower end on the second material storage rack 84, and the lower end of the second material storage rack 84 is connected with a second stopper for blocking the billets 16 on the second material storage rack 84; specifically, the second material storage rack 84 stores a plurality of billets 16 arranged in sequence, and the billets 16 roll toward the lower end on the second material storage rack 84 due to the action of gravity until the first billet 16 abuts against the second stopper and the billets 16 stop rolling; the second material moving mechanism 85 and the second material feeding and conveying mechanism 86 are both located at the lower end of the second material storage rack 84, and the second material moving mechanism 85 is used to turn the billets 16 located at the lower end of the second material storage rack 84 The blank 16 on one end of the third intermediate storage rack 87 is transported to the second feeding and conveying mechanism 86, and the second feeding and conveying mechanism 86 is used to convey the blank 16 to move forward to the second material picking position; the third intermediate storage rack 87 is located on one side of the second material picking position on the second feeding and conveying mechanism 86, and the third turning mechanism 88 is used to lift the blank 16 in the second material picking position on the second feeding and conveying mechanism 86 and guide the lifted blank 16 to roll onto the third intermediate storage rack 87, and the third intermediate storage rack 87 is inclined to make the blank 16 roll to the lower end on the third intermediate storage rack 87, and the lower end of the third intermediate storage rack 87 is connected with a third limiting block for blocking the blank 16 on the third intermediate storage rack 87; the third conveying mechanism 89 and the third supporting mechanism 24 are both arranged on the lower end of the third intermediate storage rack 87, and the third conveying mechanism 89 is used to transport the blank 16 located on the lower end of the third intermediate storage rack 87 to the third supporting mechanism 24.

[0034] Specifically, a plurality of blanks 16 are sequentially stored on the first raw material storage rack 73. The blanks 16 roll toward the lower end on the first raw material storage rack 73 until they stop rolling after hitting the first stop block 82. First, the first material moving mechanism 74 transports the blanks 16 located at the lower end of the first raw material storage rack 73 to the first feeding and conveying mechanism 75. The first feeding and conveying mechanism 75 conveys the blanks 16 forward to the first material picking position. Then, the first turning mechanism 78 and the second turning mechanism 79 act alternately. When the first turning mechanism 78 acts, it lifts up the blanks 16 in the first material picking position and guides the lifted blanks 16 to roll onto the first intermediate storage rack 76. When the second turning mechanism 79 acts, it lifts up the blanks 16 in the first material picking position and guides the lifted blanks 16 to roll onto the second intermediate storage rack 77. The blank 16 rolls toward the lower end on the first intermediate storage rack 76 until it stops against the first stop block 83, and then the first transport mechanism 80 transports the blank 16 located at the lower end of the first intermediate storage rack 76 to the first support mechanism 10. In addition, the blank 16 rolls toward the lower end on the second intermediate storage rack 77 until it stops against the second stop block, and then the second transport mechanism 81 transports the blank 16 located at the lower end of the second intermediate storage rack 77 to the second support mechanism 15. More specifically, a plurality of blanks 16 are sequentially stored on the second raw material storage rack 84. The blanks 16 roll toward the lower end of the second raw material storage rack 84 until they stop rolling after hitting the second stopper. The second material moving mechanism 85 transports the blanks 16 located at the lower end of the second raw material storage rack 84 to the second material feeding and conveying mechanism 86. The second material feeding and conveying mechanism 86 transports the blanks 16 forward to the second material fetching position. Then, the third material turning mechanism 88 lifts the blanks 16 in the second material fetching position and guides the lifted blanks 16 to roll onto the third intermediate storage rack 87. The blanks 16 roll toward the lower end of the third intermediate storage rack 87 until they stop after hitting the third stopper. Then, the third transporting mechanism 89 transports the blanks 16 located at the lower end of the third intermediate storage rack 87 to the third supporting mechanism 24.

[0035] In this embodiment, the billet cutting and conveying automatic connection equipment for the steel pipe production line further includes at least one first material shifting mechanism 90 and at least one second material shifting mechanism 91. The first material shifting mechanism 90 includes a first base, a first material shifting rod 92 and a first material shifting cylinder 93; wherein the first base is fixedly arranged, one end of the first material shifting cylinder 93 is hinged to the first base, the other end of the first material shifting cylinder 93 is hinged to the first material shifting rod 92, one end of the first material shifting rod 92 is hinged to the conveying frame in the first feeding and conveying mechanism 75, the first material shifting rod 92 is located below the billet 16 on the first raw material storage rack 73, when the billet 16 on the first raw material storage rack 73 is stuck and does not roll to the lower end, the first material shifting cylinder 93 extends to drive the first material shifting rod 92 to lift upward, thereby shifting the billet 16 on the first raw material storage rack 73 so that the billet 16 continues to roll to the lower end. The second material displacing mechanism 91 includes a second base, a second material displacing rod and a second material displacing cylinder; wherein the second base is fixedly arranged, one end of the second material displacing cylinder is hinged to the second base, the other end of the second material displacing cylinder is hinged to the second material displacing rod, one end of the second material displacing rod is hinged to the conveying frame in the second feeding and conveying mechanism 86, and the second material displacing rod is located below the blank 16 on the second raw material storage rack 84. When the blank 16 on the second raw material storage rack 84 becomes stuck and does not roll to the lower end, the second material displacing cylinder extends to drive the second material displacing rod to lift upward, thereby displacing the blank 16 on the second raw material storage rack 84 so that the blank 16 continues to roll to the lower end.

[0036] like Figures 1 to 18As shown, the first material moving mechanism 74, the second material moving mechanism 85, the first conveying mechanism 80, the second conveying mechanism 81 and the third conveying mechanism 89 respectively include at least two conveying components arranged in sequence from front to back, and the conveying components include a fixed seat 94, a sliding seat 95, a supporting block 96, a horizontal cylinder 97 and a vertical cylinder 98; wherein, the fixed seat 94 is fixedly arranged; the sliding seat 95 is slidably connected to the fixed seat 94 in the horizontal direction, and the sliding seat 95 has a material taking position and a material discharging position during the sliding process; the supporting block 96 is slidably connected to the sliding seat 95 in the vertical direction; the horizontal cylinder 97 is connected to the sliding seat 95 and is used to drive the sliding seat 95 to slide between the material taking position and the material discharging position; The vertical cylinder 98 is connected to the sliding seat 95 and connected to the supporting block 96. The vertical cylinder 98 is used to drive the supporting block 96 to rise up when the sliding seat 95 moves to the material picking position so that the supporting block 96 can hold up the blank 16. The vertical cylinder 98 is also used to drive the supporting block 96 to descend to put down the blank 16 when the sliding seat 95 moves to the material discharge position. Specifically, the working principle of the first material moving mechanism 74 is as follows: in the first material moving mechanism 74, the fixed seat 94 is connected to the conveying frame of the first feeding and conveying mechanism 75, the horizontal cylinder 97 first drives the sliding seat 95 to slide to the material picking position, and then the vertical cylinder 98 drives the supporting block 96 to rise up to hold up the blank 16 on the first raw material storage rack 73, and then the horizontal cylinder 97 drives the sliding seat 95 to slide to the material discharge position, and then the vertical cylinder 98 drives the supporting block 96 to descend to put the blank 16 on the first feeding and conveying mechanism 75. Specifically, the working principle of the second material moving mechanism 85 is as follows: in the second material moving mechanism 85, the fixed seat 94 is connected to the conveying frame of the second feeding and conveying mechanism 86, and the horizontal cylinder 97 first drives the sliding seat 95 to slide to the material picking position, and then the vertical cylinder 98 drives the supporting block 96 to rise to lift the blank 16 on the second raw material storage rack 84, and then the horizontal cylinder 97 drives the sliding seat 95 to slide to the material discharging position, and then the vertical cylinder 98 drives the supporting block 96 to descend to place the blank 16 on the second feeding and conveying mechanism 86. Specifically, the working principle of the first transport mechanism 80 is as follows: in the first transport mechanism 80, the fixed seat 94 is connected to the frame of the first intermediate storage rack 76, and the transverse cylinder 97 first drives the sliding seat 95 to slide to the material picking position, and then the vertical cylinder 98 drives the supporting block 96 to rise to lift the blank 16 on the first intermediate storage rack 76, and then the transverse cylinder 97 drives the sliding seat 95 to slide to the material discharging position, and then the vertical cylinder 98 drives the supporting block 96 to descend to place the blank 16 on the first supporting mechanism 10.Specifically, the working principle of the second transport mechanism 81 is as follows: in the second transport mechanism 81, the fixed seat 94 is connected to the frame of the second intermediate storage rack 77, and the transverse cylinder 97 first drives the sliding seat 95 to slide to the material picking position, and then the vertical cylinder 98 drives the supporting block 96 to rise to lift the blank 16 on the second intermediate storage rack 77, and then the transverse cylinder 97 drives the sliding seat 95 to slide to the material discharging position, and then the vertical cylinder 98 drives the supporting block 96 to descend to place the blank 16 on the second supporting mechanism 15. Specifically, the working principle of the third transport mechanism 89 is as follows: in the third transport mechanism 89, the fixed seat 94 is connected to the frame of the third intermediate storage rack 87, the horizontal cylinder 97 first drives the sliding seat 95 to slide to the material taking position, and then the vertical cylinder 98 drives the supporting block 96 to rise to lift the blank 16 on the third intermediate storage rack 87, and then the horizontal cylinder 97 drives the sliding seat 95 to slide to the material discharging position, and then the vertical cylinder 98 drives the supporting block 96 to descend to place the blank 16 on the third supporting mechanism 24. In this embodiment, the cylinder body of the horizontal cylinder 97 can be connected to the fixed seat 94 or to an external fixed bracket. Among them, the first material moving mechanism 74, the second material moving mechanism 85, the first transport mechanism 80, the second transport mechanism 81 and the third transport mechanism 89 each have more than three transport components.

[0037] like Figures 1 to 18As shown, the billet cutting and conveying automatic connection equipment for the steel pipe production line may also include a terminal transfer mechanism 99, a terminal guide frame 100, a lifting mechanism 101 and a terminal conveying mechanism 102; the terminal guide frame 100 is tilted, and a terminal blocking component 103 for blocking the process tube billet on the terminal guide frame 100 is connected to the lower end of the terminal guide frame 100; wherein the process tube billet falling on the terminal guide frame 100 will roll along the terminal guide frame 100 to the lower end and then be stopped by the terminal blocking component 103; the terminal The end transfer mechanism 99 is located between the higher end of the end guide rack 100 and the discharge conveying mechanism 5, and the end transfer mechanism 99 is used to lift the process tube blanks in the unloading position on the discharge conveying mechanism 5 and guide the lifted process tube blanks to roll onto the end guide rack 100; the lifting mechanism 101 is located between the lower end of the end guide rack 100 and the end conveying mechanism 102, and the lifting mechanism 101 is used to lift the process tube blanks on the end guide rack 100 and drive the process tube blanks to be lifted and conveyed to the end conveying mechanism 102. Specifically, after the unloading conveying mechanism 5 conveys the process tube billet to the unloading position, the terminal transfer mechanism 99 lifts the process tube billet in the unloading position and guides the lifted process tube billet to roll onto the terminal guide rack 100. The process tube billet falling on the terminal guide rack 100 will roll along the terminal guide rack 100 to the lower end and then be stopped by the terminal blocking component 103. Then the lifting mechanism 101 lifts the process tube billet on the terminal guide rack 100 that is stopped by the terminal blocking component 103 and drives the process tube billet to be lifted and conveyed to the terminal conveying mechanism 102. Then the terminal conveying mechanism 102 conveys the process tube billet outward. Specifically, the first raw material storage rack 73, the second raw material storage rack 84, the first intermediate storage rack 76, the second intermediate storage rack 77, the third intermediate storage rack 87, the first material guide rack 3, the second material guide rack 18 and the end material guide rack 100 respectively include a plurality of support beams arranged in parallel and inclined, and the billet 16 and the process tube billet are used to be supported on the inclined support beams and roll along the support beams to the lower end.

[0038] like Figures 1 to 18As shown, the lifting mechanism 101 may include a lifting frame, an upper lifting shaft 104, a lower lifting shaft, a lifting drive mechanism 105, a lifting chain, an upper sprocket 106 corresponding to the lifting chain one by one, a lower sprocket corresponding to the lifting chain one by one, and a plurality of guide frames 107; the guide frames 107 are connected in parallel to the lifting frame and are inclined; the upper lifting shaft 104 and the lower lifting shaft are both rotatably connected to the lifting frame, and the upper lifting shaft 104 is located above the lower lifting shaft; the upper sprocket 106 is connected in parallel to the upper lifting shaft 104, and the lower sprocket is connected in parallel to the lower lifting shaft; the lifting chain is connected to the corresponding upper sprocket 106 and the corresponding lower sprocket. A lifting bracket is connected to the lifting chain; the lifting drive mechanism 105 is connected to the upper lifting shaft 104 and is used to drive the upper lifting shaft 104 to rotate, and then drives the lifting chain to move through the upper sprocket 106, and then drives the lifting bracket to move to hold up the process tube blanks on the terminal guide frame 100 and drive the process tube blanks to be lifted and transported to the guide frame 107; the terminal conveying mechanism 102 is connected to a plurality of first receiving plates 108 connected to the lower end of the guide frame 107, so that the process tube blanks on the guide frame 107 can roll onto the first receiving plate 108, and the first receiving plate 108 is used to guide the process tube blanks to roll onto the terminal conveying mechanism 102 after receiving the process tube blanks. Specifically, the process tube blanks falling on the end guide rack 100 will roll along the end guide rack 100 to the lower end and then be stopped by the end blocking component 103. When the lifting drive mechanism 105 drives the upper lifting shaft 104 to rotate, it will drive the lifting chain to move through the upper sprocket 106 and then drive the lifting bracket to move, so that the lifting bracket lifts the process tube blanks on the end guide rack 100 that are stopped by the end blocking component 103 and then drives the process tube blanks to be lifted and transported to the guide rack 107. Since the guide rack 107 is inclined, the process tube blanks on the guide rack 107 will roll onto the first receiving plate 108, and then the first receiving plate 108 guides the process tube blanks to roll onto the end conveying mechanism 102, and then the end conveying mechanism 102 transports the process tube blanks outward. Among them, the lifting drive mechanism 105 is a lifting motor. In this embodiment, the first receiving plate 108 is connected to the conveying frame in the terminal conveying mechanism 102, and the first receiving plate 108 and the conveying rollers 110 in the terminal conveying mechanism 102 are arranged alternately. The first receiving plate 108 is provided with a first recessed portion 109 aligned with the conveying rollers 110 in the terminal conveying mechanism 102, and the process tube blank rolled onto the first receiving plate 108 will roll along the first receiving plate 108 toward the first recessed portion 109, and then the process tube blank will roll into the first recessed portion 109 and then fall onto the conveying rollers 110 in the terminal conveying mechanism 102.Specifically, the terminal conveying mechanism 102, the discharging conveying mechanism 5, the first material receiving conveying mechanism 6, the second material receiving conveying mechanism 11, the third material receiving conveying mechanism 20, the first feeding conveying mechanism 75 and the second feeding conveying mechanism 86 are all conveying rollers.

[0039] like Figures 1 to 18 As shown, the terminal conveying mechanism 102, the discharging conveying mechanism 5, the first receiving conveying mechanism 6, the second receiving conveying mechanism 11, the third receiving conveying mechanism 20, the first feeding conveying mechanism 75 and the second feeding conveying mechanism 86 respectively include a conveying frame, a conveying drive mechanism and a plurality of conveying rollers 110; the conveying rollers 110 are arranged in sequence and rotatably connected to the conveying frame, the blank 16 and the process tube blank are used to be carried on the conveying rollers 110, and the conveying rollers 110 are V-shaped rollers; the conveying drive mechanism is connected to part or all of the conveying rollers 110 and is used to drive the conveying rollers 110 to rotate so as to convey the blank 16 and the process tube blank to move. Specifically, in the first feeding conveying mechanism 75 and the second feeding conveying mechanism 86, the conveying drive mechanism includes a conveying motor corresponding to the conveying rollers 110, and the conveying motor is connected to the corresponding conveying rollers 110 and drives the corresponding conveying rollers 110 to rotate. In addition, in the end conveying mechanism 102, the discharging conveying mechanism 5, the first material receiving conveying mechanism 6, the second material receiving conveying mechanism 11 and the third material receiving conveying mechanism 20, the conveying drive mechanism includes a conveying motor and a plurality of transmission chains, and the adjacent conveying rollers 110 are connected by transmission chains. The conveying motor is connected to any at least one conveying roller 110. When the conveying motor rotates, it can drive the conveying roller 110 connected to it to rotate, and then drive all the conveying rollers 110 to rotate through the transmission chain.

[0040] like Figures 1 to 18 As shown, the discharge conveying mechanism 5 is connected to a plurality of second receiving plates 111 arranged in sequence, and the second receiving plates 111 are used to guide the process tube billet to roll onto the discharge conveying mechanism 5 after receiving the process tube billet; Wherein, the first transfer and loading mechanism 4 comprises: A first main shaft 112 arranged to rotate; A plurality of first loading arms 113 connected in parallel to the first spindle 112; a first driving mechanism connected to the first main shaft 112, the first driving mechanism being used to drive the first main shaft 112 to rotate and then drive the first loading arm 113 to rotate, so that the first loading arm 113 lifts the process tube blank on the first guide frame 3 to the second receiving plate 111 during the rotation process, and then the process tube blank rolls along the second receiving plate 111 to the discharging conveying mechanism 5; Wherein, the second transfer and loading mechanism 19 comprises: A second main shaft 114 arranged to rotate; A plurality of second loading arms 115 connected in parallel to the second spindle 114; a second driving mechanism connected to the second main shaft 114, the second driving mechanism is used to drive the second main shaft 114 to rotate and then drive the second loading arm 115 to rotate, so that the second loading arm 115 lifts the process tube blank on the second guide frame 18 to the second receiving plate 111 during the rotation process, and then the process tube blank rolls along the second receiving plate 111 to the discharging conveying mechanism 5; In this embodiment, the second receiving plate 111 is connected to the conveying frame in the discharging conveying mechanism 5, and the second receiving plate 111 is alternately arranged with the conveying rollers 110 in the discharging conveying mechanism 5. The second receiving plate 111 is provided with a second recessed portion 116 aligned with the conveying rollers 110 in the discharging conveying mechanism 5, and the process tube blank on the second receiving plate 111 will roll along the second receiving plate 111 toward the second recessed portion 116, and then the process tube blank will roll into the second recessed portion 116 and then fall on the conveying rollers 110 in the discharging conveying mechanism 5. Specifically, the first main shaft 112 is rotatably connected to the second receiving plate 111, and the first driving mechanism includes a first swing arm and a first cylinder, one end of the first swing arm is connected to the first main shaft 112, and the first cylinder is connected to the other end of the first swing arm and is used to drive the first swing arm to swing and then drive the first main shaft 112 to rotate. Specifically, the second main shaft 114 is rotatably connected to the second material receiving plate 111, and the second driving mechanism includes a second swing arm 117 and a second cylinder 118, one end of the second swing arm 117 is connected to the second main shaft 114, and the second cylinder 118 is connected to the other end of the second swing arm 117 and is used to drive the second swing arm 117 to swing and thereby drive the second main shaft 114 to rotate.

[0041] Among them, the first transfer unloading mechanism 1, the second transfer unloading mechanism 2, the third transfer unloading mechanism 17, the terminal transfer mechanism 99, the first turning mechanism 78, the second turning mechanism 79 and the third turning mechanism 88, the first unloading mechanism 60 and the second unloading mechanism 61 respectively include: A rotating spindle 119 arranged for rotation; A plurality of rotating arms 120 connected in parallel to the rotating main shaft 119; A rotary drive mechanism connected to the rotary spindle 119 is used to drive the rotary spindle 119 to rotate and then drive the rotary arm 120 to rotate so that the rotary arm 120 can lift the blank 16 or the process tube and then make the blank 16 or the process tube roll down along the rotary arm 120. Specifically, the rotary drive mechanism includes a driving cylinder and a driving arm, one end of the driving arm is connected to the rotary spindle 119, and the driving cylinder is connected to the other end of the driving arm and is used to drive the driving arm to swing and then drive the rotary spindle 119 to rotate.

[0042] Among them, the rotating main shaft 119 in the first transfer and unloading mechanism 1 is rotatably connected to the conveying frame in the first material receiving and conveying mechanism 6, and the rotating arm 120 in the first transfer and unloading mechanism 1 is initially located below the process tube blank on the first material receiving and conveying mechanism 6. The rotating arm 120 in the first transfer and unloading mechanism 1 is used to lift the process tube blank on the first material receiving and conveying mechanism 6 during rotation and make the process tube blank roll along the rotating arm 120 onto the first material guide frame 3. The rotating arm 120 in the first transfer and unloading mechanism 1 is staggered with the conveying roller 110 in the first material receiving and conveying mechanism 6. Among them, the rotating main shaft 119 in the second transfer and unloading mechanism 2 is rotatably connected to the conveying frame in the second material receiving and conveying mechanism 11, and the rotating arm 120 in the second transfer and unloading mechanism 2 is initially located below the process tube blank on the second material receiving and conveying mechanism 11. The rotating arm 120 in the second transfer and unloading mechanism 2 is used to lift the process tube blank on the second material receiving and conveying mechanism 11 during rotation and make the process tube blank roll along the rotating arm 120 onto the first material guide frame 3. The rotating arm 120 in the second transfer and unloading mechanism 2 is staggered with the conveying roller 110 in the second material receiving and conveying mechanism 11. Among them, the rotating main shaft 119 in the third transfer and unloading mechanism 17 is rotatably connected to the conveying frame in the third material receiving and conveying mechanism 20, and the rotating arm 120 in the third transfer and unloading mechanism 17 is initially located below the process tube blank on the third material receiving and conveying mechanism 20. The rotating arm 120 in the third transfer and unloading mechanism 17 is used to lift the process tube blank on the third material receiving and conveying mechanism 20 during rotation and make the process tube blank roll along the rotating arm 120 to the second material guide frame 18. The rotating arm 120 in the third transfer and unloading mechanism 17 is staggered with the conveying roller 110 in the third material receiving and conveying mechanism 20. Among them, the rotating main shaft 119 in the terminal transfer mechanism 99 is rotatably connected to the conveyor frame in the discharge conveying mechanism 5, and the rotating arm 120 in the terminal transfer mechanism 99 is initially located below the process tube blank on the discharge conveying mechanism 5. The rotating arm 120 in the terminal transfer mechanism 99 is used to lift the process tube blank on the discharge conveying mechanism 5 during rotation and make the process tube blank roll along the rotating arm 120 to the terminal guide frame 100. The rotating arm 120 in the terminal transfer mechanism 99 is staggered with the conveying roller 110 in the discharge conveying mechanism 5. Among them, the rotating main shaft 119 in the first turning mechanism 78 is rotatably connected to the conveyor frame in the first feeding and conveying mechanism 75, and the rotating arm 120 in the first turning mechanism 78 is initially located below the blank 16 in the first picking position on the first feeding and conveying mechanism 75. The rotating arm 120 in the first turning mechanism 78 is used to lift the blank 16 in the first picking position on the first feeding and conveying mechanism 75 during the rotation process and make the blank 16 roll along the rotating arm 120 to the first intermediate storage rack 76. The rotating arm 120 in the first turning mechanism 78 and the conveying roller 110 in the first feeding and conveying mechanism 75 are staggered.Among them, the rotating main shaft 119 in the second turning mechanism 79 is rotatably connected to the conveyor frame in the first feeding and conveying mechanism 75, and the rotating arm 120 in the second turning mechanism 79 is initially located below the blank 16 in the first picking position on the first feeding and conveying mechanism 75. The rotating arm 120 in the second turning mechanism 79 is used to lift the blank 16 in the first picking position on the first feeding and conveying mechanism 75 during rotation and make the blank 16 roll along the rotating arm 120 to the second intermediate storage rack 77. The rotating arm 120 in the second turning mechanism 79 is staggered with the conveying roller 110 in the first feeding and conveying mechanism 75. Among them, the rotating main shaft 119 in the third turning mechanism 88 is rotatably connected to the conveyor frame in the second feeding and conveying mechanism 86, and the rotating arm 120 in the third turning mechanism 88 is initially located below the blank 16 in the second picking position on the second feeding and conveying mechanism 86. The rotating arm 120 in the third turning mechanism 88 is used to lift the blank 16 in the second picking position on the second feeding and conveying mechanism 86 during the rotation process and make the blank 16 roll along the rotating arm 120 to the third intermediate storage rack 87. The rotating arm 120 in the third turning mechanism 88 is staggered with the conveying roller 110 in the second feeding and conveying mechanism 86. Among them, the rotating main shaft 119 in the first unloading mechanism 60 is rotatably connected to the conveying frame in the first material receiving and conveying mechanism 6, and the rotating arm 120 in the first unloading mechanism 60 is initially located below the process tube blank in the first material receiving and conveying mechanism 6. The rotating arm 120 in the first unloading mechanism 60 is used to hold up the process tube blank in the first material receiving and conveying mechanism 6 during rotation and make the process tube blank roll along the rotating arm 120 to the second storage rack 52. The rotating arm 120 in the first unloading mechanism 60 is staggered with the conveying roller 110 in the first material receiving and conveying mechanism 6. Among them, the rotating main shaft 119 in the second unloading mechanism 61 is rotatably connected to the conveying frame in the third material receiving and conveying mechanism 20, and the rotating arm 120 in the second unloading mechanism 61 is initially located below the process tube blank in the third material receiving and conveying mechanism 20. The rotating arm 120 in the second unloading mechanism 61 is used to hold up the process tube blank in the third material receiving and conveying mechanism 20 during rotation and make the process tube blank roll along the rotating arm 120 to the sixth storage rack 56. The rotating arm 120 in the second unloading mechanism 61 and the conveying roller 110 in the third material receiving and conveying mechanism 20 are staggered.

[0043] To sum up, when the blank 16 is conveyed to the first supporting mechanism 10, the first feeding mechanism 9 will clamp the blank 16 in the first supporting mechanism 10 and drive the blank 16 to move forward until it extends into the first sawing mechanism 8, and then the first sawing mechanism 8 cuts the blank 16 and obtains the process tube blank, and then the first transfer conveying mechanism 7 receives the process tube blank cut by the first sawing mechanism 8 and conveys the process tube blank to the first material receiving conveying mechanism 6, the first material receiving conveying mechanism 6 receives the process tube blank conveyed by the first transfer conveying mechanism 7, and then the first transfer unloading mechanism 1 lifts the process tube blank on the first material receiving conveying mechanism 6 and guides the lifted process tube blank to roll onto the first material guide rack 3. At the same time, when the blank 16 is conveyed to the second supporting mechanism 15, the second feeding mechanism 14 will clamp the blank 16 in the second supporting mechanism 15 and drive the blank 16 to move forward until it extends into the second sawing mechanism 13, and then the second sawing mechanism 13 cuts the blank 16 and obtains the process tube billet, and then the second transfer conveying mechanism 12 receives the process tube billet cut by the second sawing mechanism 13 and conveys the process tube billet to the second material receiving conveying mechanism 11, and the second material receiving conveying mechanism 11 receives the process tube billet conveyed by the second transfer conveying mechanism 12, and then the second transfer unloading mechanism 2 lifts the process tube billet on the second material receiving conveying mechanism 11 and guides the lifted process tube billet to roll onto the first material guide rack 3. Among them, the process tube blanks falling on the first guide rack 3 will roll along the first guide rack 3 to the lower end under the action of gravity and then be stopped by the first blocking component, and then the first transfer loading mechanism 4 lifts the process tube blanks stopped by the first blocking component on the first guide rack 3 and makes the lifted process tube blanks roll onto the unloading conveying mechanism 5, and then the unloading conveying mechanism 5 conveys the process tube blanks to the unloading position. In this embodiment, the blanks 16 and process tube blanks can be automatically conveyed, and the blanks 16 can be automatically sawed into process tube blanks without manual auxiliary operation, which greatly improves production efficiency, reduces labor costs and labor intensity of workers, and has a higher degree of automation than the prior art.

[0044] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic connection equipment for cutting and conveying billets for a steel pipe production line, characterized in that: The invention comprises a first transfer unloading mechanism (1), a second transfer unloading mechanism (2), a first material guide frame (3), a first transfer loading mechanism (4), a material discharging conveying mechanism (5), a first material receiving conveying mechanism (6), a first transfer conveying mechanism (7), a first sawing mechanism (8), a first feeding mechanism (9) and a first supporting mechanism (10) which are arranged in sequence from front to back, and a second material receiving conveying mechanism (11), a second transfer conveying mechanism (12), a second sawing mechanism (13), a second feeding mechanism (14) and a second supporting mechanism (15) which are arranged in sequence from front to back; A blank (16) is placed in the first supporting mechanism (10); The first feeding mechanism (9) is used to clamp the blank (16) in the first supporting mechanism (10) and drive the blank (16) to move forward until it extends into the first sawing mechanism (8); The first sawing mechanism (8) is used to cut the blank (16) to obtain a process tube blank of a certain length; The first transfer conveying mechanism (7) is used to receive the process tube blank cut by the first sawing mechanism (8) and convey the process tube blank to the first receiving conveying mechanism (6); the first receiving conveying mechanism (6) is used to receive the process tube blank conveyed by the first transfer conveying mechanism (7); A blank (16) is placed in the second supporting mechanism (15); The second feeding mechanism (14) is used to clamp the blank (16) in the second supporting mechanism (15) and drive the blank (16) to move forward until it extends into the second sawing mechanism (13); The second sawing mechanism (13) is used to cut the blank (16) to obtain a process tube blank of a certain length; The second transfer conveying mechanism (12) is used to receive the process tube blank cut by the second sawing mechanism (13) and convey the process tube blank to the second receiving conveying mechanism (11); the second receiving conveying mechanism (11) is used to receive the process tube blank conveyed by the second transfer conveying mechanism (12); The first material guide frame (3) is arranged obliquely, and a first blocking component for blocking the process tube blank on the first material guide frame (3) is connected to a lower end portion of the first material guide frame (3); The first material receiving and conveying mechanism (6) is located on a higher side of the first material guide frame (3), the material discharging and conveying mechanism (5) is located on a lower side of the first material guide frame (3), and the second material receiving and conveying mechanism (11) and the second material transfer and unloading mechanism (2) are both located above the first material guide frame (3); The first transfer and unloading mechanism (1) is located between a higher end portion of the first material guide frame (3) and the first material receiving and conveying mechanism (6), and the first transfer and unloading mechanism (1) is used to lift the process tube blank on the first material receiving and conveying mechanism (6) and guide the lifted process tube blank to roll onto the first material guide frame (3); The second transfer unloading mechanism (2) is located on one side of the second material receiving and conveying mechanism (11) and is used to lift the process tube blank on the second material receiving and conveying mechanism (11) and guide the lifted process tube blank to roll onto the first material guide rack (3); The first transfer loading mechanism (4) is located between a lower end portion of the first material guide frame (3) and the material discharge conveying mechanism (5). The first transfer loading mechanism (4) is used to lift the process tube blank on the first material guide frame (3) and allow the lifted process tube blank to roll onto the material discharge conveying mechanism (5). The material discharge conveying mechanism (5) receives the process tube blank and is used to convey the process tube blank to a material discharge position.

2. The automatic connection equipment for cutting and conveying billets for a steel pipe production line according to claim 1 is characterized in that: It also includes a third transfer unloading mechanism (17), a second material guide frame (18), a second transfer loading mechanism (19), and a third material receiving and conveying mechanism (20), a third transfer conveying mechanism (21), a third sawing mechanism (22), a third feeding and conveying mechanism (23), and a third supporting mechanism (24) which are arranged in sequence from front to back; The third supporting mechanism (24) has a blank (16) placed therein; The third feeding mechanism (23) is used to clamp the blank (16) in the third supporting mechanism (24) and drive the blank (16) to move forward until it extends into the third sawing mechanism (22); The third sawing mechanism (22) is used to cut the blank (16) to obtain a process tube blank of a certain length; The third transfer conveying mechanism (21) is used to receive the process tube blank cut by the third sawing mechanism (22) and convey the process tube blank to the third material receiving and conveying mechanism (20); the third material receiving and conveying mechanism (20) is used to receive the process tube blank conveyed by the third transfer conveying mechanism (21); The second material guide frame (18) is arranged obliquely, and a second blocking component (25) for blocking the process tube blank on the second material guide frame (18) is connected to a lower end portion of the second material guide frame (18); The third material receiving conveying mechanism (20) is located on a higher side of the second material guiding frame (18), and the material discharging conveying mechanism (5) is located on a lower side of the second material guiding frame (18); The third transfer unloading mechanism (17) is located between a higher end portion of the second material guide frame (18) and the third material receiving and conveying mechanism (20), and the third transfer unloading mechanism (17) is used to lift the process tube blank on the third material receiving and conveying mechanism (20) and guide the lifted process tube blank to roll onto the second material guide frame (18); The second transfer loading mechanism (19) is located between a lower end portion of the second material guide frame (18) and the material discharging conveying mechanism (5), and the second transfer loading mechanism (19) is used to lift the process tube blank on the second material guide frame (18) and allow the lifted process tube blank to roll onto the material discharging conveying mechanism (5).

3. The automatic connection equipment for cutting and conveying billets for a steel pipe production line according to claim 2 is characterized in that: The first supporting mechanism (10), the second supporting mechanism (15) and the third supporting mechanism (24) respectively comprise a plurality of supporting components (26) sequentially arranged at intervals in the front-to-back direction and a plurality of limiting components (27) sequentially arranged at intervals in the front-to-back direction; The material support assembly (26) comprises a material support bracket (28) and a material support roller (29), wherein the material support bracket (28) is fixedly arranged, and the material support roller (29) is rotatably connected to the material support bracket (28) and is used to support the lower end of the blank (16); The limiting assembly (27) comprises a limiting bracket (30), a left limiting roller (31) and a right limiting roller (32); the limiting bracket (30) is fixedly arranged; the left limiting roller (31) is rotatably connected to the limiting bracket (30) and is used to abut against the left side of the blank (16); and the right limiting roller (32) is rotatably connected to the limiting bracket (30) and is used to abut against the right side of the blank (16); The first feeding mechanism (9), the second feeding mechanism (14) and the third feeding mechanism (23) respectively comprise a feeding frame, a feeding slide (33), a clamping mechanism and a feeding drive mechanism; The feeding slide (33) is slidably connected to the feeding frame in the front-rear direction; The clamping mechanism is connected to the feeding slide (33) and is used to clamp the blank (16); The feeding drive mechanism is connected to the feeding slide (33) and is used to drive the feeding slide (33) to move forward and backward, thereby driving the blank (16) clamped by the clamping mechanism to move forward.

4. The automatic connection equipment for cutting and conveying billets for a steel pipe production line according to claim 2 is characterized in that: It also includes a first rear length measuring device for measuring the length of the blank (16) on the first supporting mechanism (10), a second rear length measuring device for measuring the length of the blank (16) on the second supporting mechanism (15), a third rear length measuring device for measuring the length of the blank (16) on the third supporting mechanism (24), a first front length measuring device for detecting the cut length of the process tube blank in the first sawing mechanism (8), a second front length measuring device for detecting the cut length of the process tube blank in the second sawing mechanism (13), and a third front length measuring device for detecting the cut length of the process tube blank in the third sawing mechanism (22); Wherein, the first rear length measuring device comprises a first distance meter (39) and a first end surface sensor (40); The first end surface sensor (40) is located on one side of the first feeding mechanism (9), and the first end surface sensor (40) is used to send a signal to a controller when the front end surface of the blank (16) in the first supporting mechanism (10) moves to align with the first end surface sensor (40); The first distance meter (39) is located behind the blank (16) in the first supporting mechanism (10), and the controller is used to control the first distance meter (39) to measure the distance to the rear end face of the blank (16) in the first supporting mechanism (10) when receiving a signal sent by the first end face sensor (40); Wherein, the second rear length measuring device comprises a second distance meter (41) and a second end surface sensor (42); The second end surface sensor (42) is located on one side of the second feeding mechanism (14), and the second end surface sensor (42) is used to send a signal to the controller when the front end surface of the blank (16) in the second supporting mechanism (15) moves to align with the second end surface sensor (42); The second distance meter (41) is located behind the blank (16) in the second supporting mechanism (15), and the controller is used to control the second distance meter (41) to measure the distance to the rear end face of the blank (16) in the second supporting mechanism (15) when receiving a signal sent by the second end face sensor (42); Wherein, the third rear length measuring device comprises a third distance meter (43) and a third end surface sensor (44); The third end surface sensor (44) is located at one side of the third feeding mechanism (23), and the third end surface sensor (44) is used to send a signal to the controller when the front end surface of the blank (16) in the third supporting mechanism (24) moves to align with the third end surface sensor (44); The third distance meter (43) is located behind the blank (16) in the third supporting mechanism (24), and the controller is used to control the third distance meter (43) to measure the distance to the rear end face of the blank (16) in the third supporting mechanism (24) when receiving a signal sent by the third end face sensor (44); Wherein, the first front length measuring device comprises a first mounting frame (45), a first sliding bracket (46), a first photoelectric switch (47), a first origin sensor (48) and a first servo mechanism (49); The first sliding bracket (46) is located in front of the first sawing mechanism (8), and the first sliding bracket (46) is slidably connected to the first mounting frame (45) along the front-rear direction; The first servo mechanism (49) is connected to the first mounting frame (45) and is connected to the first sliding bracket (46), and the first servo mechanism (49) is used to drive the first sliding bracket (46) to move forward and backward and to count and measure the moving distance of the first sliding bracket (46); The first photoelectric switch (47) is connected to the first sliding bracket (46) and is signal-connected to the first servo mechanism (49); when the first sliding bracket (46) moves to align with the front end surface of the blank (16) in the first sawing mechanism (8), the first photoelectric switch (47) senses the front end surface of the blank (16) and generates a signal to send to the first servo mechanism (49); The first origin sensor (48) is connected to the first mounting frame (45), is located in front of the first sawing mechanism (8), and is signal-connected to the first servo mechanism (49); when the first sliding bracket (46) moves to align with the first origin sensor (48), the first origin sensor (48) senses the first sliding bracket (46) and generates a signal to send to the first servo mechanism (49); Wherein, the second front length measuring device comprises a second mounting frame, a second sliding bracket, a second photoelectric switch, a second origin sensor and a second servo mechanism; The second sliding bracket is located in front of the second sawing mechanism (13), and the second sliding bracket is slidably connected to the second mounting frame along the front-rear direction; The second servo mechanism is connected to the second mounting frame and connected to the second sliding bracket, and the second servo mechanism is used to drive the second sliding bracket to move forward and backward and to count and measure the moving distance of the second sliding bracket; The second photoelectric switch is connected to the second sliding bracket and is connected to the second servo mechanism signal. When the second sliding bracket moves to align with the front end surface of the blank (16) in the second sawing mechanism (13), the second photoelectric switch senses the front end surface of the blank (16) and generates a signal to send to the second servo mechanism; The second origin sensor is connected to the second mounting frame, located in front of the second sawing mechanism (13) and connected to the second servo mechanism signal, and when the second sliding bracket moves to align with the second origin sensor, the second origin sensor senses the second sliding bracket and generates a signal to send to the second servo mechanism; Wherein, the third front length measuring device comprises a third mounting frame, a third sliding bracket, a third photoelectric switch, a third origin sensor and a third servo mechanism; The third sliding bracket is located in front of the third sawing mechanism (22), and the third sliding bracket is slidably connected to the third mounting frame along the front-rear direction; The third servo mechanism is connected to the third mounting frame and connected to the third sliding bracket, and the third servo mechanism is used to drive the third sliding bracket to move forward and backward and to count and measure the moving distance of the third sliding bracket; The third photoelectric switch is connected to the third sliding bracket and is connected to the third servo mechanism signal, and when the third sliding bracket moves to align with the front end surface of the blank (16) in the third sawing mechanism (22), the third photoelectric switch senses the front end surface of the blank (16) and generates a signal to send to the third servo mechanism; The third origin sensor is connected to the third mounting frame, located in front of the third sawing mechanism (22) and connected to the third servo mechanism signal; when the third sliding bracket moves to align with the third origin sensor, the third origin sensor senses the third sliding bracket and generates a signal to send to the third servo mechanism.

5. The automatic connection equipment for cutting and conveying billets for a steel pipe production line according to claim 2 is characterized in that: It also includes a first storage rack (51), a second storage rack (52), a third storage rack (53), a fourth storage rack (54), a fifth storage rack (55), a sixth storage rack (56), a first material pushing mechanism (57), a second material pushing mechanism (58), a third material pushing mechanism (59), a first material unloading mechanism (60) and a second material unloading mechanism (61); The first storage rack (51) is located on one side of the first transfer conveying mechanism (7); The second storage rack (52) is located on one side of the first material receiving and conveying mechanism (6); The third storage rack (53) is located on one side of the second transfer conveying mechanism (12), and the fourth storage rack (54) is located on the other side of the second transfer conveying mechanism (12); The fifth storage rack (55) is located on one side of the third transfer conveying mechanism (21); The sixth storage rack (56) is located on one side of the third material receiving and conveying mechanism (20); The first material pushing mechanism (57) is connected to the first transfer conveying mechanism (7) and is used to push the process tube blank on the first transfer conveying mechanism (7) into the first storage rack (51); The first unloading mechanism (60) is connected to the first material receiving and conveying mechanism (6) and is used to lift the process tube blank on the first material receiving and conveying mechanism (6) and guide the lifted process tube blank to roll into the second storage rack (52); The second material pushing mechanism (58) is connected to the second transfer conveying mechanism (12) and is used to push the process tube blank on the second transfer conveying mechanism (12) into the third storage rack (53) or into the fourth storage rack (54); The third material pushing mechanism (59) is connected to the third transfer conveying mechanism (21) and is used to push the process tube blank on the third transfer conveying mechanism (21) into the fifth storage rack (55); The second unloading mechanism (61) is connected to the third material receiving and conveying mechanism (20) and is used to lift the process tube blank on the third material receiving and conveying mechanism (20) and guide the lifted process tube blank to roll into the sixth storage rack (56).

6. The automatic connection equipment for cutting and conveying billets for a steel pipe production line according to claim 5 is characterized in that: The first transfer conveying mechanism (7), the second transfer conveying mechanism (12) and the third transfer conveying mechanism (21) respectively comprise a transfer frame (62), a transfer drive mechanism (63), a driving rotating shaft, a driven rotating shaft, a plurality of driving sprockets (64), a plurality of driven sprockets (65) and a plurality of conveying chains (66); The conveying chains (66) correspond one to one with the driving sprocket (64) and the driven sprocket (65) respectively; The driving rotating shaft and the driven rotating shaft are respectively rotatably connected to the transfer frame (62); The driving sprockets (64) are connected in parallel to the driving rotating shaft; The driven sprocket (65) is connected in parallel to the driven rotating shaft; The conveyor chain (66) is connected to the corresponding driving sprocket (64) and the corresponding driven sprocket (65), and the conveyor chain (66) is used to receive the process tube blank obtained by cutting; The transfer drive mechanism (63) is connected to the active rotating shaft and is used to drive the active rotating shaft and the active sprocket (64) to rotate, thereby driving the conveying chain (66) to move so as to convey the process tube blank; Wherein, the first pushing mechanism (57) comprises a base plate (67), a first pushing plate (68) and a first pushing cylinder (69); The base plate (67) is fixedly connected to the transfer frame (62) in the first transfer conveying mechanism (7); The first push plate (68) is slidably connected to the base plate (67); The first push cylinder (69) is connected to the base plate (67), the first push cylinder (69) is connected to the first push plate (68) and is used to drive the first push plate (68) to move so as to push the process tube blank on the conveying chain (66) in the first transfer conveying mechanism (7) into the first storage rack (51); Wherein, the second pushing mechanism (58) comprises a support frame (70), a second pushing plate (71) and a second pushing cylinder (72); The support frame (70) is fixedly connected to the transfer frame (62) in the second transfer conveying mechanism (12), and the support frame (70) is located above the conveying chain (66) in the second transfer conveying mechanism (12); The second push plate (71) is slidably connected to the support frame (70) and is located above the conveying chain (66) in the second transfer conveying mechanism (12); The second push cylinder (72) is connected to the support frame (70) and is connected to the second push plate (71). The second push cylinder (72) is used to drive the second push plate (71) to move to one side so as to push the process tube blank on the conveying chain (66) in the second transfer conveying mechanism (12) to the third storage rack (53). The second push cylinder (72) is also used to drive the second push plate (71) to move to the other side so as to push the process tube blank on the conveying chain (66) in the second transfer conveying mechanism (12) to the fourth storage rack (54). Wherein, the third pushing mechanism (59) comprises a bottom plate, a third pushing plate and a third pushing cylinder; The bottom plate is fixedly connected to a transfer frame (62) in the third transfer conveying mechanism (21); The third push plate is slidably connected to the bottom plate; The third pushing cylinder is connected to the bottom plate, and the third pushing cylinder is connected to the third pushing plate and is used to drive the third pushing plate to move so as to push the process tube blank on the conveying chain (66) in the third transfer conveying mechanism (21) into the fifth storage rack (55).

7. The automatic connection equipment for cutting and conveying billets for a steel pipe production line according to claim 2 is characterized in that: It also includes a first raw material storage rack (73), a first material transfer mechanism (74), a first material feeding and conveying mechanism (75), a first intermediate storage rack (76), a second intermediate storage rack (77), a first material turning mechanism (78), a second material turning mechanism (79), a first conveying mechanism (80) and a second conveying mechanism (81); The first raw material storage rack (73) stores blanks (16), and the first raw material storage rack (73) is tilted so that the blanks (16) roll toward a lower end on the first raw material storage rack (73). A first stopper (82) for blocking the blanks (16) on the first raw material storage rack (73) is connected to the lower end of the first raw material storage rack (73); The first material moving mechanism (74) and the first material feeding and conveying mechanism (75) are both located at a lower end of the first material storage rack (73); the first material moving mechanism (74) is used to move the blank (16) located at a lower end of the first material storage rack (73) to the first material feeding and conveying mechanism (75); the first material feeding and conveying mechanism (75) is used to convey the blank (16) forward to a first material taking position; The first intermediate storage rack (76) is located on one side of the first material picking position on the first feeding and conveying mechanism (75), and the second intermediate storage rack (77) is located on the other side of the first material picking position on the first feeding and conveying mechanism (75); the first turning mechanism (78) is used to lift the blank (16) in the first material picking position on the first feeding and conveying mechanism (75) and guide the lifted blank (16) to roll onto the first intermediate storage rack (76); and the second turning mechanism (79) is used to lift the blank (16) in the first material picking position on the first feeding and conveying mechanism (75) and guide the lifted blank (16) to roll onto the second intermediate storage rack (77); The first intermediate storage rack (76) is tilted so that the blank (16) rolls toward a lower end on the first intermediate storage rack (76); a first stopper (83) for blocking the blank (16) on the first intermediate storage rack (76) is connected to the lower end of the first intermediate storage rack (76); The first transport mechanism (80) and the first supporting mechanism (10) are both arranged on a lower end portion of the first intermediate storage rack (76), and the first transport mechanism (80) is used to transport the blank (16) located on the lower end portion of the first intermediate storage rack (76) to the first supporting mechanism (10); The second intermediate storage rack (77) is tilted so that the blank (16) rolls toward a lower end on the second intermediate storage rack (77), and a second stop block for blocking the blank (16) on the second intermediate storage rack (77) is connected to the lower end of the second intermediate storage rack (77); The second transport mechanism (81) and the second supporting mechanism (15) are both arranged on a lower end portion of the second intermediate storage rack (77), and the second transport mechanism (81) is used to transport the blank (16) located on the lower end portion of the second intermediate storage rack (77) to the second supporting mechanism (15); It also includes a second raw material storage rack (84), a second material transfer mechanism (85), a second material feeding and conveying mechanism (86), a third intermediate storage rack (87), a third material turning mechanism (88) and a third transport mechanism (89); The second raw material storage rack (84) stores blanks (16), the second raw material storage rack (84) is tilted so that the blanks (16) roll toward a lower end on the second raw material storage rack (84), and a second stopper for blocking the blanks (16) on the second raw material storage rack (84) is connected to the lower end of the second raw material storage rack (84); The second material moving mechanism (85) and the second material feeding and conveying mechanism (86) are both located at a lower end of the second material storage rack (84); the second material moving mechanism (85) is used to move the blank (16) located at a lower end of the second material storage rack (84) to the second material feeding and conveying mechanism (86); the second material feeding and conveying mechanism (86) is used to convey the blank (16) forward to a second material taking position; The third intermediate storage rack (87) is located on one side of the second material picking position on the second material feeding and conveying mechanism (86), and the third material turning mechanism (88) is used to lift the blank (16) in the second material picking position on the second material feeding and conveying mechanism (86) and guide the lifted blank (16) to roll onto the third intermediate storage rack (87). The third intermediate storage rack (87) is tilted so that the blank (16) rolls toward a lower end on the third intermediate storage rack (87), and a third stop block for blocking the blank (16) on the third intermediate storage rack (87) is connected to the lower end of the third intermediate storage rack (87); The third transport mechanism (89) and the third supporting mechanism (24) are both arranged on the lower end of the third intermediate storage rack (87), and the third transport mechanism (89) is used to transport the blank (16) located on the lower end of the third intermediate storage rack (87) to the third supporting mechanism (24).

8. The automatic connection equipment for cutting and conveying billets for a steel pipe production line according to claim 7 is characterized in that: It also includes an end transfer mechanism (99), an end material guide frame (100), a lifting mechanism (101) and an end conveying mechanism (102); The end material guide frame (100) is arranged obliquely, and a lower end portion of the end material guide frame (100) is connected to an end blocking component (103) for blocking the process tube blank on the end material guide frame (100); The terminal transfer mechanism (99) is located between a higher end portion of the terminal guide frame (100) and the discharge conveying mechanism (5), and the terminal transfer mechanism (99) is used to lift the process tube blank in the unloading position on the discharge conveying mechanism (5) and guide the lifted process tube blank to roll onto the terminal guide frame (100); The lifting mechanism (101) is located between a lower end portion of the terminal guide frame (100) and the terminal conveying mechanism (102), and the lifting mechanism (101) is used to lift the process tube blank on the terminal guide frame (100) and drive the process tube blank to be lifted and conveyed to the terminal conveying mechanism (102).

9. The automatic connection equipment for cutting and conveying billets for a steel pipe production line according to claim 8 is characterized in that: The lifting mechanism (101) comprises a lifting frame, an upper lifting shaft (104), a lower lifting shaft, a lifting drive mechanism (105), a lifting chain, an upper chain wheel (106) corresponding one-to-one to the lifting chain, a lower chain wheel corresponding one-to-one to the lifting chain, and a plurality of guide frames (107); The guide frame (107) is connected in parallel to the lifting frame and is arranged obliquely; The upper lifting shaft (104) and the lower lifting shaft are both rotatably connected to the lifting frame, and the upper lifting shaft (104) is located above the lower lifting shaft; The upper sprocket (106) is connected in parallel to the upper lifting shaft (104), and the lower sprocket is connected in parallel to the lower lifting shaft; The lifting chain is connected to the corresponding upper sprocket (106) and the corresponding lower sprocket, and the lifting chain is connected to a lifting bracket; The lifting drive mechanism (105) is connected to the upper lifting shaft (104) and is used to drive the upper lifting shaft (104) to rotate, thereby driving the lifting chain to move through the upper sprocket (106), thereby driving the lifting bracket to move to lift the process tube blank on the end guide frame (100) and drive the process tube blank to be lifted and transported to the guide frame (107); The terminal conveying mechanism (102) is connected to a plurality of first receiving plates (108) connected to a lower end portion of the guide frame (107), so that the process tube on the guide frame (107) can roll onto the first receiving plates (108). The first receiving plates (108) are used to guide the process tube to roll onto the terminal conveying mechanism (102) after receiving the process tube.

10. The automatic connection equipment for cutting and conveying billets for a steel pipe production line according to claim 8, characterized in that: The discharge conveying mechanism (5) is connected to a plurality of second receiving plates (111) arranged in sequence, and the second receiving plates (111) are used to guide the process tube blanks to roll onto the discharge conveying mechanism (5) after receiving the process tube blanks; Wherein, the first transfer and loading mechanism (4) comprises: A first principal axis (112) of the rotation arrangement; A plurality of first loading arms (113) connected in parallel to the first main shaft (112); a first driving mechanism connected to the first main shaft (112), the first driving mechanism being used to drive the first main shaft (112) to rotate and thereby drive the first loading arm (113) to rotate, so that the first loading arm (113) lifts the process tube blank on the first guide frame (3) to the second receiving plate (111) during the rotation process, and then causes the process tube blank to roll along the second receiving plate (111) to the discharge conveying mechanism (5); Wherein, the second transfer and loading mechanism (19) comprises: A second main axis (114) of the rotation arrangement; A plurality of second loading arms (115) connected in parallel to the second main shaft (114); a second driving mechanism connected to the second main shaft (114), the second driving mechanism being used to drive the second main shaft (114) to rotate and thereby drive the second loading arm (115) to rotate, so that the second loading arm (115) lifts the process tube blank on the second material guide frame (18) onto the second material receiving plate (111) during the rotation process, and then causes the process tube blank to roll along the second material receiving plate (111) onto the discharge conveying mechanism (5); Wherein, the first transfer material unloading mechanism (1), the second transfer material unloading mechanism (2), the third transfer material unloading mechanism (17), the terminal transfer mechanism (99), the first material turning mechanism (78), the second material turning mechanism (79) and the third material turning mechanism (88) respectively comprise: Rotation setting of the rotation spindle (119); A plurality of rotating arms (120) connected in parallel to the rotating main shaft (119); A rotary drive mechanism connected to the rotary main shaft (119), the rotary drive mechanism being used to drive the rotary main shaft (119) to rotate and thereby drive the rotary arm (120) to rotate so that the rotary arm (120) lifts the blank (16) or the process tube blank and then causes the blank (16) or the process tube blank to roll down along the rotary arm (120).

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