A system for conveying pipes

Abstract

The present invention discloses a system for pipe conveying, which belongs to the technical field of pipe processing. It includes a conveying frame, a pushing mechanism and multiple groups of roller assemblies. The pushing mechanism includes a push rod and a conveying drive mechanism. The push rod is provided with a rod head and a follower pipe head. The follower pipe head is provided with a positioning ring platform. The follower pipe head is rotatably arranged on the rod head or the push rod. The conveying drive mechanism includes a driving wheel, a driven wheel, a synchronous belt, a driving motor and a clutch for cutting off or engaging the power transmission between the driving motor and the driving wheel. The push rod is connected to the synchronous belt. The present invention has a simple structure. The push rod pushes the pipe to load, and the pipe discharging pushes the push rod back. The push rod and the pipe are always kept in a plug-in matching state, which reduces the jumping and noise when the pipe is discharged, and can also reduce or even avoid the throwing out of the cutting fluid in the pipe. The rotation of the follower pipe head also reduces the wear between the pipe and the push rod or the rod head, thereby ensuring the quality of the pipe.

Description

Technical Field

[0001] The invention relates to a system for pipe fitting transportation, belonging to the technical field of pipe fitting processing. Background Art

[0002] In the field of refrigeration technology, it is common to process different tooth shapes on heat exchange tubes in order to increase the heat exchange area of ​​the heat exchange tubes. At the same time, the tooth shape design is used to enhance the disturbance of the medium during heat exchange to enhance the heat exchange effect.

[0003] The equipment used for processing the tooth shape is a gear rolling machine. During the gear rolling process of the gear rolling machine, the pipe fittings are placed on the conveying system and are sent to the rolling station for gear rolling using a driving device. Specifically, the push rod of the driving device is inserted into and matched with the front end of the pipe fitting, and the push rod moves under the action of the driving device. The pipe fitting is sent to the gear rolling station as pushed by the push rod, and then the gear rolling host performs gear rolling on the pipe fitting. The pipe fitting is discharged. As the pipe fitting is discharged, the driving device needs to reverse and drive the push rod to reset.

[0004] In the actual processing of the gear rolling machine, the tool of the gear rolling main machine not only processes the tooth shape on the blank tube, but also the tube is discharged while rotating under the action of the gear rolling tool. That is to say, the discharge speed of the tube is determined by the gear rolling tool, and the ejector is driven by the power of the driving device. When the tube is discharged, it is difficult for the return of the ejector to match the discharge speed of the tube tooth shape processing. The unmatched discharge speed of the tube will affect the effect of the tube tooth shape processing; if the return speed of the ejector is faster than the discharge speed of the tube, or the ejector returns first and then the tube If the tooth rolling process is performed again, the push rod will be separated from the pipe when the pipe is toothed and discharged, and the pipe will rotate to discharge. In addition, the processed pipe is generally long. Once the pipe is separated, the pipe end of the pipe will lack restraint, and the discharged part of the pipe will jump greatly and make a lot of noise, which will not only affect the processing quality of the pipe being toothed, but also there is a risk of jumping out of the pipe bearing station. If the return speed of the push rod is slower than the discharge speed of the pipe, the push rod will hinder the discharge of the pipe, and the pipe cannot be discharged smoothly. The tooth shape of the tooth rolling on the surface of the pipe is difficult to meet the requirements, which will seriously affect the tooth rolling quality of the pipe. Summary of the invention

[0005] The present invention aims at solving the deficiencies in the prior art and provides a system for pipe conveying.

[0006] The technical solution of the present invention to solve the above technical problems is as follows: a system for conveying pipe fittings, comprising a conveying frame, a pushing mechanism arranged on the conveying frame and a plurality of roller assemblies for carrying pipe fittings, the pushing mechanism comprising a push rod and a conveying driving mechanism for driving the push rod to move along the length direction of the conveying frame, the action end of the push rod is provided with a pointed rod head, and also comprises a follower pipe head, the follower pipe head is provided with a positioning ring for positioning the end of the pipe fitting, and the follower pipe head is rotatably arranged on the rod head or the push rod;

[0007] The conveying drive mechanism includes a driving wheel, a driven wheel, a synchronous belt wrapped around the driving wheel and the driven wheel, and a driving motor, and also includes a clutch for cutting off or engaging the power transmission between the driving motor and the driving wheel. The clutch engages the power transmission between the driving motor and the driving wheel when the pipe is loaded, and the clutch cuts off the power transmission between the driving motor and the driving wheel when the pipe is unloaded. The push rod is connected to the synchronous belt through a material rod frame, and the material rod frame is connected to the conveying frame through a guide mechanism.

[0008] The beneficial effects of the present invention are as follows: in order to ensure the accuracy of the push rod and the pipe fitting through the pipe, the rod head of the push rod is set to a pointed structure to ensure that the push rod enters the pipe smoothly, and the setting of the follower pipe head allows the rod head to continue to be inserted into the follower pipe head after entering the pipe fitting and limit the pipe end through the positioning ring of the follower pipe head, and the positioning ring is used to push the pipe fitting forward on the roller assembly for feeding, and the follower pipe head can also rotate with the pipe fitting when the pipe fitting is rolled and discharged, reducing the wear between the pipe fitting and the push rod or the rod head, avoiding the wear of the pipe head part, and meeting the quality requirements of the pipe fitting; when pushing the material, the clutch engages the power transmission between the driving motor and the driving wheel, and the driving wheel is driven by the driving motor. The push rod pushes the pipe fitting toward the gear rolling station, and then the pipe fitting is processed at the gear rolling station. When discharging, the clutch cuts off the power transmission between the drive motor and the driving wheel. The pipe fitting rotates and discharges while gear rolling. The pipe end of the pipe fitting cooperates with the rod head and the follower pipe head, and the pipe fitting pushes the push rod back. The rod head and the follower pipe head keep the constraint on the pipe end, which reduces the vibration of the pipe fitting during processing and discharging, reduces noise, especially the vibration of the free end of the pipe fitting. At the same time, after the clutch cuts off the power transmission, the push rod is reset under the push of the pipe fitting. The rod head and the follower pipe head are always matched with the pipe fitting insertion, which can also reduce or even avoid the throwing out of the cutting fluid in the pipe.

[0009] Based on the above technical solution, the present invention can also be improved as follows.

[0010] Furthermore, the guiding mechanism includes a guide rail and a rod frame slider matched with the guide rail, the guide rail is arranged on the conveying frame, and the rod frame slider is arranged on the material rod frame.

[0011] The beneficial effect of adopting the above further scheme is that the pipe fittings are loaded under the action of the push rod, and the push rod passively returns when the pipe fittings are processed and discharged. The cooperation of the guide rail and the slider can limit and guide the push rod for active pushing or passive resetting, thereby reducing the axial force on the push rod.

[0012] Furthermore, it also includes a rod head guard, a connecting mechanism is provided between the rod head guard and the material rod frame, the connecting mechanism includes a connecting guide rod, both ends of the connecting guide rod are respectively connected to the guide rail through a guide rod slider, the rod frame slider is arranged between the two guide rod sliders, and the material rod frame or the rod frame slider can move along the connecting guide rod.

[0013] The beneficial effect of adopting the above-mentioned further scheme is that the rod head guard is used to further effectively prevent the splashing of cutting liquid at the joint between the pipe fitting and the push rod during tooth rolling. If the rod head guard is directly set at the rod head position, there will be a problem of affecting the smooth connection between the push rod and the pipe fitting. Therefore, a connecting guide rod is added between the push rod and the rod head guard, and the push rod can move relative to the connecting guide rod. When the push rod needs to be connected with the pipe fitting, the push rod moves first, and the rod head guard does not move. Then the push rod moves to one side of the guide rod slider to drive the rod head guard to move together, ensuring the smooth connection between the rod head of the push rod and the pipe fitting. When the pipe fitting is discharged, the pipe fitting pushes the push rod backward, and the push rod moves backward along the connecting guide rod, and then moves to the other side of the guide rod slider to drive the rod head guard to move together. At this time, the rod head guard is at the corresponding position of the rod head to prevent the splashing of cutting liquid at the joint between the rod head and the pipe fitting.

[0014] Furthermore, the connecting guide rod is provided with a first limiting member and a second limiting member for limiting the position of the rod bracket slider.

[0015] The beneficial effect of adopting the above further scheme is that the front and rear positions of the push rod on the connecting guide rod can be limited by the limit piece, so that the rod head shield can be accurately positioned to the corresponding position of the rod head when needed. When pushing materials, the push rod reaches the second limit piece under the action of the pushing drive mechanism, thereby driving the rod head shield and the connecting guide rod forward. When discharging materials, the push rod reaches the first limit piece under the action of the pipe fitting, driving the rod head shield and the connecting guide rod to return.

[0016] Furthermore, it also includes a plurality of material clamping modules arranged along the length direction of the conveying frame, the material clamping modules include a material clamping seat, a material clamping shaft rotatably arranged on the material clamping seat, a material clamping driving mechanism for driving the material clamping shaft to rotate, a clamping roller frame and a material clamping roller arranged on the clamping roller frame, the material clamping seat is arranged on the conveying frame, the clamping roller frame is connected to the material clamping shaft, and the material clamping roller swings with the axis of the material clamping shaft as a rotating fulcrum under the action of the material clamping driving mechanism.

[0017] The beneficial effect of adopting the above further solution is that the tooth-rolled pipe fittings are generally long. In order to further ensure the accuracy of the insertion of the push rod and the pipe fitting, the pipe fitting can be pressed by the clamping module before the push rod moves to avoid the situation where the end of the pipe fitting is tilted and the push rod cannot be inserted into the pipe. The clamping module can also restrain the jumping of the pipe fitting after the discharge process by the rollers of the clamping roller and the roller assembly in cooperation with the three rollers during the tooth-rolling processing and discharge of the pipe fitting.

[0018] Furthermore, the material clamping driving mechanism includes a material clamping cylinder and a material clamping rod connected to the piston rod of the material clamping cylinder, the material clamping rod is axially movably arranged on the material clamping shell, the material clamping shaft is provided with a material clamping gear, and the material clamping rod is provided with a material clamping rack meshing with the material clamping gear, and under the telescopic action of the material clamping cylinder, the material clamping roller presses or moves away from the pipe fitting located on the roller assembly.

[0019] The beneficial effect of adopting the above further scheme is that the appropriate clamping force can be obtained by adjusting the pressure regulating valve of the clamping cylinder to meet the clamping requirements of the pipe fittings. When pushing the material to the position, the pipe end position of the fixed pipe fitting can be clamped, which is convenient for the push rod to be inserted and matched with the pipe fitting; and during the process of rolling and discharging, the rolled pipe fittings are constrained and clamped to avoid problems such as pipe throwing and loud noise during the rolling process.

[0020] Furthermore, the roller assembly includes a pair of supporting rollers, and the axle ends of the supporting rollers are respectively connected to the conveying frame through roller frames.

[0021] The beneficial effect of adopting the above further solution is that the pipe is supported by the support rollers, and the pipe can move axially on the double rollers during the push rod and gear rolling processing.

[0022] Furthermore, it also includes a feeding mechanism arranged on one side of the conveying frame, the feeding mechanism includes a material rack for storing pipes to be processed, a block for blocking materials, and a pushing mechanism for pushing the pipes on the material rack over the block for loading, and the bearing surface of the material rack is arranged at an angle.

[0023] Furthermore, the ejection mechanism is provided with at least two, the ejection mechanism includes an ejection rod and an ejection shaft, the material rack is provided with an ejection rod hole, the ejection rod can be axially moved on the ejection shell, the ejection shell is provided on the material rack, the ejection shaft can be rotatably provided on the ejection shell, the ejection rod is provided with an ejection rack, the ejection shaft is provided with an ejection gear meshing with the ejection rack, the adjacent ejection shafts are connected by an ejection transmission shaft, and the ejection shaft and the ejection transmission shaft rotate under the action of the ejection power mechanism.

[0024] The beneficial effect of adopting the above further scheme is that the pipe fittings can be placed on the roller assembly manually to wait for loading, and of course, automatic loading can also be adopted. The feeding mechanism adopted can not only store materials through the material rack, but also has the function of automatic loading. Considering the length and diameter of the toothed pipe fittings, multiple ejection mechanisms can be arranged at intervals, and the meshing of the ejection rack and the ejection gear can ensure the synchronization of each ejection mechanism, so as to realize automatic loading of the pipe fittings close to the block.

[0025] Furthermore, it also includes a material unloading mechanism arranged on the other side of the conveying frame, the material unloading mechanism includes a material unloading transmission shaft and at least two material unloading plates arranged on the material unloading transmission shaft, the material unloading transmission shaft can be rotatably arranged on the material unloading seat, the material unloading seat is arranged on the conveying frame or the material blocking shell, and the material unloading transmission shaft rotates under the action of the material unloading drive mechanism.

[0026] The beneficial effect of adopting the above further scheme is that after the pipe fittings are processed, they can be unloaded manually. In order to improve product processing, unloading can also be carried out automatically. By adopting the above unloading mechanism, the rotation of the unloading drive shaft can drive the unloading paddle to rotate. The unloading paddle rotates with the axis of the unloading drive shaft as the rotation center to lift the processed pipe fittings, thereby realizing automatic unloading of the pipe fittings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the material pushing mechanism on the conveying frame of the present invention;

[0028] Figure 2 for Figure 1 A partial enlarged view of the middle push rod mechanism;

[0029] Figure 3 is a schematic diagram of the cross-sectional structure of the push rod of the present invention;

[0030] Figure 4 It is a structural schematic diagram of the connection mechanism of the present invention;

[0031] Figure 5 is a schematic cross-sectional structure diagram of the conveying drive mechanism of the present invention;

[0032] Figure 6 It is a structural schematic diagram of a material clamping module on the conveying frame of the present invention;

[0033] Figure 7 for Figure 6 A partial enlarged view of the middle clamping module;

[0034] Figure 8 It is a structural schematic diagram of the clamping module of the present invention;

[0035] Fig. 9 It is a schematic diagram of the cross-sectional structure of the clamping module of the present invention along the axis direction of the clamping rod;

[0036] Fig.10 It is a schematic diagram of the structure of the feeding, blocking and unloading mechanisms on the conveying frame of the present invention;

[0037] Fig.11 for Fig.10 A partial enlarged view of the output end of the conveyor frame in FIG.

[0038] Fig.12 It is a schematic diagram of the structure of the feeding, blocking and unloading mechanisms on the conveying frame of the present invention from an angle 2;

[0039] Fig.13 It is a partial structural schematic diagram of the feeding mechanism of the present invention;

[0040] Fig.14 It is a schematic diagram of the cross-sectional structure of the feeding mechanism of the present invention along the axis direction of the ejector rod;

[0041] Fig.15 It is a top view of the structure of the feeding, blocking and unloading mechanisms on the conveying frame of the present invention;

[0042] Fig.16 for Fig.15 Schematic diagram of the left view structure;

[0043] Fig.17 It is a structural schematic diagram of the material blocking and unloading mechanism of the present invention;

[0044] Fig.18 for Fig.17 A partial enlarged view of the material-blocking rotary cylinder;

[0045] Fig.19 It is a schematic cross-sectional structure diagram of a material blocking rod of the material blocking mechanism of the present invention;

[0046] In the figure, 1, conveying frame; 2, push rod; 3, rod head; 4, follower pipe head; 401, positioning ring; 5, driving motor; 6, driving wheel; 7, supporting roller; 8, synchronous belt; 9, clutch; 901, clutch coil; 902, clutch fixing part; 903, clutch rotating part; 10, material rod frame; 11, guide rail; 12, rod frame slider; 13, rod head shield; 14, connecting guide rod; 15, guide rod slider; 16, first limiter; 17, second limiter; 18, clamping seat; 19, clamping shaft; 191, clamping gear; 20, clamping Roller frame; 21. Clamping roller; 22. Clamping cylinder; 23. Clamping rod; 231. Clamping rack; 24. Material rack; 25. Block; 26. Ejector rod; 261. Ejector rack; 27. Ejector shaft; 271. Ejector gear; 28. Ejector drive shaft; 29. ​​Ejector rotary cylinder; 30. Stopper rod; 301. Stopper rack; 31. Ejector shaft; 311. Stopper gear; 32. Ejector drive shaft; 33. Stopper rotary cylinder; 34. Unloading plate; 35. Unloading drive shaft; 36. Unloading cylinder; 37. Pipe fittings; 38. Encoder; 39. Proximity switch. DETAILED DESCRIPTION

[0047] The principles and features of the present invention are described below in conjunction with examples. The examples are only used to explain the present invention and are not used to limit the scope of the present invention.

[0048] like Figure 1-Figure 19 As shown, a system for conveying pipe fittings includes a conveying frame 1, a plurality of roller assemblies and a pushing mechanism arranged on the conveying frame 1 for carrying pipe fittings 37, the pushing mechanism includes a push rod 2 and a conveying drive mechanism for driving the push rod 2 to move along the length direction of the conveying frame 1, a pointed rod head 3 is arranged on the action end of the push rod 2, and also includes a follower pipe head 4, a positioning ring 401 for positioning the end of the pipe fitting 37 is arranged on the follower pipe head 4, and the follower pipe head 4 is rotatably arranged on the rod head 3 or the push rod 2;

[0049] The conveying drive mechanism includes a driving wheel 6, a driven wheel, a synchronous belt 8 wrapped around the driving wheel 6 and the driven wheel, and a driving motor 5, and also includes a clutch 9 for cutting off or engaging the power transmission between the driving motor 5 and the driving wheel 6. When the pipe 37 is loaded, the clutch 9 engages the power transmission between the driving motor 5 and the driving wheel 6. When the pipe 37 is unloaded, the clutch 9 cuts off the power transmission between the driving motor 5 and the driving wheel 6. The push rod 2 is connected to the synchronous belt 8 through a material rod frame 10, and the material rod frame 10 is connected to the conveying frame 1 through a guide mechanism.

[0050] The guide mechanism includes a guide rail 11 and a rod frame slider 12 matched with the guide rail 11, wherein the guide rail 11 is arranged on the conveying frame 1, and the rod frame slider 12 is arranged on the material rod frame 10. The pipe fitting 37 is loaded under the action of the push rod 2, and the push rod 2 passively returns when the pipe fitting 37 is processed and discharged. The cooperation between the guide rail 11 and the rod frame slider 12 can limit and guide the push rod 2 that actively pushes or passively resets, thereby reducing the axial force on the push rod 2.

[0051] The pipe conveying system also includes a rod head shield 13, a connecting mechanism is provided between the rod head shield 13 and the material rod frame 10, the connecting mechanism includes a connecting guide rod 14, both ends of the connecting guide rod 14 are respectively connected to the guide rail 11 through a guide rod slider 15, the rod frame slider 12 is arranged between the two guide rod sliders 15, and the rod frame slider 12 can move along the connecting guide rod 14. The rod head shield 13 can effectively prevent the splashing of cutting liquid at the joint between the pipe fitting 37 and the push rod 2 during gear rolling. If the rod head shield 13 is directly set at the rod head 3, there will be a problem of affecting the smooth connection between the push rod 2 and the pipe fitting 37. Therefore, a connecting guide rod 14 is added between the push rod 2 and the rod head shield 13, and the push rod 2 can move relative to the connecting guide rod 14. When the push rod 2 needs to be connected with the pipe fitting 37, the push rod 2 moves first, and the rod head shield 13 does not move. Then, the push rod 2 moves to one side of the guide rod slider 15 to drive the rod head shield 13 to move together, thereby ensuring the smooth connection between the rod head 3 of the push rod 2 and the pipe fitting 37; when the pipe fitting 37 is discharged, the pipe fitting 37 pushes the push rod 2 to move backward, and the push rod 2 moves backward along the connecting guide rod 14, and then moves to the other side of the guide rod slider 15 to drive the rod head shield 13 to move together. At this time, the rod head shield 13 is at the corresponding position of the rod head 3 to prevent the splashing of cutting liquid at the joint between the rod head 3 and the pipe fitting 37.

[0052] The connecting guide rod 14 is provided with a first stopper 16 and a second stopper 17 for limiting the position of the rod frame slider 12. The front and rear positions of the push rod 2 on the connecting guide rod 14 can be limited by the stopper, so that the rod head shield 13 can be accurately positioned at the corresponding position of the rod head 3 when needed. When pushing materials, the push rod 2 reaches the second stopper 17 under the action of the pushing drive mechanism, thereby driving the rod head shield 13 and the connecting guide rod 14 forward. When discharging materials, the push rod 2 reaches the first stopper 16 under the action of the pipe 37, driving the rod head shield 13 and the connecting guide rod 14 back.

[0053] The pipe conveying system also includes a plurality of clamping modules arranged along the length direction of the conveying frame 1, the clamping modules include a clamping seat 18, a clamping shaft 19 arranged on the clamping seat 18, a clamping drive mechanism for driving the clamping shaft 19 to rotate, a clamping roller frame 20, and a clamping roller 21 arranged on the clamping roller frame 20. The clamping seat 18 is arranged on the conveying frame 1, the clamping roller frame 20 is connected to the clamping shaft 19, the clamping shaft 19 is rotatably arranged on the clamping seat 18, and the clamping roller 21 swings with the axis of the clamping shaft 19 as a rotation fulcrum under the action of the clamping drive mechanism. The toothed pipe 37 is generally long. In order to further ensure the accuracy of the insertion of the push rod 2 and the pipe 37, before the push rod 2 moves, the pipe 37 can be pressed by the clamping module to avoid the situation where the end of the pipe 37 is tilted and the push rod 2 cannot enter the pipe. The clamping module can also restrain the jumping of the pipe 37 after the discharge by cooperating with the three rollers of the clamping roller 21 and the roller wheel of the roller assembly during the tooth rolling and discharge process of the pipe 37.

[0054] The clamping drive mechanism includes a clamping cylinder 22 and a clamping rod 23 connected to the piston rod of the clamping cylinder 22. The clamping rod 23 is axially movable on the clamping housing. The clamping shaft 19 is provided with a clamping gear 191. The clamping rod 23 is provided with a clamping rack 231 meshing with the clamping gear 191. Under the telescopic action of the clamping cylinder 22, the clamping roller 21 presses or moves away from the pipe 37 located on the roller assembly. The appropriate clamping force can be obtained by adjusting the pressure regulating valve of the clamping cylinder 22 to meet the clamping requirements of the pipe 37. When pushing the material to the right position, the pipe end position of the fixed pipe 37 can be pressed, which is convenient for the push rod 2 to be inserted and matched with the pipe 37; and during the process of rolling the teeth and discharging the materials, the rolled pipe 37 is constrained and clamped to avoid the problems of the pipe 37 being thrown off and making loud noise during the rolling process.

[0055] The roller assembly includes a pair of supporting rollers 7, and the wheel shaft ends of the supporting rollers 7 are respectively connected to the conveying frame 1 through roller frames. The supporting rollers 7 support the pipe 37, and the pipe 37 can move axially on the double rollers during the push rod 2 and gear rolling processing.

[0056] In order to further improve the efficiency of the tooth rolling process of the pipe 37, an automated feeding method may be used.

[0057] The pipe conveying system also includes a feeding mechanism arranged on one side of the conveying frame 1, and the feeding mechanism includes a material rack 24 for storing pipes 37 to be processed, a stopper 25 for blocking the material, and a pushing mechanism for pushing the pipes 37 on the material rack 24 over the stopper 25 for loading. The bearing surface of the material rack 24 is arranged inclined, and the stopper 25 is arranged on the material rack 24.

[0058] The ejection mechanism is provided with at least two, and the ejection mechanism includes an ejector rod 26 and an ejection shaft 27. The material rack 24 is provided with an ejector rod hole, and the ejector rod 26 is axially movable and arranged on the ejection housing, and the ejection housing is arranged on the material rack 24, and the ejection shaft 27 is rotatably arranged on the ejection housing, and the ejector rod 26 is provided with an ejection rack 261, and the ejection shaft 27 is provided with an ejection gear 271 meshing with the ejection rack 261, and the adjacent ejection shafts 27 are connected by an ejection transmission shaft 28, and the ejection shaft 27 and the ejection transmission shaft 28 rotate under the action of the ejection power mechanism. The pipe fittings 37 can be placed on the roller assembly manually to wait for loading, and of course, automatic loading can also be used. The feeding mechanism adopted can not only store materials through the material rack 24, but also has the function of automatic loading. Considering the length and diameter of the toothed pipe 37, multiple ejection mechanisms can be arranged at intervals, and the meshing of the ejection rack 261 and the ejection gear 271 can ensure the synchronization of each ejection mechanism, so as to realize the automatic feeding of the pipe 37 close to the stopper 25. Only one ejection power mechanism can be selected to control multiple ejection mechanisms, and the ejection power mechanism can select an ejection motor or an ejection rotary cylinder 29, and the output shaft of the ejection motor or the ejection rotary cylinder 29 is connected to the ejection shaft 27 or the ejection transmission shaft 28.

[0059] In order to further improve the gear rolling processing efficiency of the pipe 37, an automated material cutting method may be adopted.

[0060] The pipe conveying system also includes a material unloading mechanism arranged on the other side of the conveying frame 1, and the material unloading mechanism includes a material unloading transmission shaft 35 and at least two material unloading paddles 34 arranged on the material unloading transmission shaft 35. The material unloading transmission shaft 35 can be rotatably arranged on the material unloading seat, and the material unloading seat is arranged on the conveying frame 1 or the material blocking shell. The material unloading transmission shaft 35 rotates under the action of the material unloading driving mechanism. After the pipe 37 is processed, it can be unloaded manually. In order to improve the unloading of product processing, automatic unloading can also be used. With the above-mentioned unloading mechanism, the rotation of the material unloading transmission shaft 35 can drive the material unloading paddle 34 to rotate. The material unloading paddle 34 rotates with the axis of the material unloading transmission shaft 35 as the rotation center, and the processed pipe 37 is tilted, thereby realizing the automatic unloading of the pipe 37. The unloading drive mechanism can be an unloading motor or an unloading cylinder 36. When a motor is used, the output shaft of the motor can be connected to the unloading transmission shaft 35. When the unloading cylinder 36 is used, the cylinder body of the unloading cylinder 36 can be installed on the conveying frame 1, and a connecting arm is fixed on the unloading transmission shaft 35. The piston rod of the unloading cylinder 36 is hinged to the connecting arm to realize the rotational drive of the unloading transmission shaft 35. The unloading plate 34 can be connected to the unloading transmission shaft 35 through a sliding key and move with the unloading transmission shaft 35. The unloading plate 34 is arranged between adjacent roller assemblies.

[0061] The pipe conveying system further comprises at least two material blocking mechanisms arranged on the other side of the conveying frame 1 .

[0062] The material stopping mechanism includes a material stopping rod 30 and a material stopping shaft 31. The material stopping rod 30 can be axially moved on the material stopping shell, and the material stopping shaft 31 can be rotatably arranged on the material stopping shell. The material stopping shell is arranged on the conveying frame 1. The material stopping rod 30 is provided with a material stopping rack 301, and the material stopping shaft 31 is provided with a material stopping gear 311 meshing with the material stopping rack 301. Adjacent material stopping shafts 31 are connected by a material stopping transmission shaft 32, and the material stopping shaft 31 and the material stopping transmission shaft 32 rotate under the action of the material stopping power mechanism. The material stopping mechanism 311 is provided with a plurality of material stopping mechanisms, and the material stopping mechanism 32 is provided with a plurality of material stopping mechanisms, and the material stopping mechanism 33 is provided with a plurality of material stopping mechanisms.

[0063] When laying out the actual unloading mechanism, the unloading seat of the unloading mechanism can be selected to be installed on the material blocking shell. At this time, an avoidance hole needs to be set on the unloading plate 34 to avoid interference with the material blocking rod 30. At the same time, in order to meet the swing requirements of the unloading plate 34, the avoidance hole is a long hole.

[0064] The follower pipe head 4 is arranged on the rod head 3 through a bearing; the rod head 3 is threadedly connected to the push rod 2; and the cross section of the conveying frame 1 is an I-shaped structure.

[0065] The clutch 9 uses an electromagnetic clutch. The clutch 9 is arranged between the driving wheel 6 and the driving motor 5. The clutch 9 includes a clutch coil 901, a clutch fixing part 902 and a clutch rotating part 903. The clutch fixing part 902 is connected to the main shaft through a sliding key; the driving wheel 6 and the clutch rotating part 903 are rotatably arranged on the main shaft, the clutch rotating part 903 is connected to the driving wheel 6, and the main shaft rotates under the action of the driving motor 5. The clutch fixing part 902 rotates with the main shaft, and there is a 1mm gap between the clutch fixing part 902 and the clutch rotating part 903. The electromagnetic clutch coil 901 is powered on and off to achieve the engagement and disengagement between the clutch fixing part 902 and the clutch rotating part 903. The main shaft can be the output shaft of the driving motor 5, or it can be an independent main shaft, and the main shaft can be connected to the output shaft of the driving motor 5.

[0066] There are multiple material racks 24, and they are evenly distributed along the conveying direction of the pipe 37.

[0067] Each material rack 24 may be provided with a stopper 25 .

[0068] Of course, the stoppers 25 may also be arranged at intervals on the material racks 24 , and it is not necessary for each material rack 24 to have a stopper 25 .

[0069] The driving wheel 6 may also be provided with an encoder 38. The encoder 38 may be an absolute encoder, and the detection shaft of the encoder 38 is connected to the driving wheel 6 through the detection transmission shaft. The tube 37 pushes the push rod 2 in the reverse direction during the tooth rolling, and the push rod 2 drives the synchronous belt 8 to rotate through the material rod frame 10, thereby driving the driving wheel 6 to rotate, and the encoder 38 rotates accordingly. The distance moved by the push rod 2 can be reflected in the number of rotations of the encoder 38, and the length of the tooth rolling tube 37 is detected by the encoder 38. The encoder 38 can be used in conjunction with a proximity switch 39, which is also called a zeroing switch. The proximity switch 39 is a stop switch for the drive motor 5 to drive the push rod 2 to push the tube 37 to the tooth rolling position. The so-called zeroing means that the tube 37 reaches the tooth rolling position. At this time, the material rod frame 10 triggers the proximity switch 39, and the encoder 38 returns to zero, thereby ensuring the accuracy of the length of the rolled tube detected by the encoder 38. During the tooth rolling process, the push rod 2 will follow the tooth rolling and follow the tooth rolling. The tooth rolling rate is equal to the moving speed of the push rod 2, so that the real-time production efficiency can be directly fed back.

[0070] Working process: the pipe fittings 37 waiting to be loaded are placed on the material rack 24. Before feeding, the material-blocking rotary cylinder 33 drives the material-blocking transmission shaft 32 to rotate, the material-blocking shaft 31 rotates, the material-blocking gear 311 on the material-blocking shaft 31 rotates, and the material-blocking rod 30 is lifted up through the material-blocking rack 301. The material-pushing rotary cylinder 29 drives the material-pushing transmission shaft 28 to rotate, the material-pushing shaft 27 rotates, and the material-pushing gear 271 on the material-pushing shaft 27 rotates, and the material-pushing rack 261 is used to realize that the push rod 26 pushes up the pipe fittings 37 close to the stopper 25, and the pipe fittings 37 pass over the stopper 25 and fall to the support of the roller assembly. On the supporting roller wheel 7, in order to ensure the accuracy of pipe insertion, before the rod head 3 of the push rod 2 is connected with the pipe fitting 37, the clamping module is started, the piston rod of the clamping cylinder 22 is extended, and under the meshing action of the clamping rack 231 and the clamping gear 191, the clamping shaft 19 rotates, thereby driving the clamping roller 21 to swing above the roller assembly, and the clamping roller 21 and the roller assembly cooperate to fix the pipe fitting 37, and then the driving motor 5 is started, and the synchronous belt 8 drives the push rod 2 to move on the roller assembly, and the rod head 3 is inserted into the pipe fitting 37. When pushing the material, the clutch 9 is in the engaged state, and the driving motor 5 drives the driving wheel 6 to rotate The push rod 2 pushes the pipe 37 forward and pushes it to the gear rolling station for gear rolling. When the pipe 37 is being rolled and discharged, the pipe 37 rotates and automatically discharges. The clutch 9 is in a disengaged state, the driving motor 5 is disconnected from the driving wheel 6, the rod head 3 of the push rod 2 remains in an inserted state with the pipe 37, the push rod 2 returns with the pipe 37 being discharged, the follower pipe head 4 on the push rod 2 can rotate with the pipe 37, reducing the wear of the push rod 2 or the rod head 3. When rolling, most of the cutting fluid outside the pipe 37 can be removed by blowing, while the inside of the pipe can only be discharged with the pipe 37. The pipe 37 rotates, especially the pipe The cutting fluid will be thrown out at the end position, and the push rod 2 returns under the push of the pipe 37. The positioning ring 401 of the follower pipe head 4 cooperates with the pipe 37 to reduce or even avoid the cutting fluid in the pipe from being thrown out, and can guide the cutting fluid to flow to the cutting fluid tank below and be collected smoothly, thereby meeting the requirements of the clean working environment of the conveyor line; after the processing of the pipe 37 is completed, the piston rod of the unloading cylinder 36 is retracted, the unloading transmission shaft 35 rotates, the free end of the unloading plate 34 is tilted, and the processed pipe 37 leaves the roller assembly to complete the unloading of the pipe 37, and the above process is repeated to wait for the delivery of the next pipe 37.

[0071] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A system for conveying pipe fittings, comprising a conveying frame (1), a material pushing mechanism arranged on the conveying frame (1), and a plurality of roller assemblies for carrying pipe fittings (37), characterized in that: The pushing mechanism comprises a push rod (2) and a conveying drive mechanism for driving the push rod (2) to move along the length direction of the conveying frame (1); a rod head (3) is provided on the active end of the push rod (2); the rod head (3) is in a pointed shape; and further comprises a follower pipe head (4); a positioning ring (401) is provided on the follower pipe head (4) for positioning the end of the pipe member (37); the follower pipe head (4) is rotatably arranged on the rod head (3) or the push rod (2); The conveying drive mechanism comprises a driving wheel (6), a driven wheel, a synchronous belt (8) wrapped around the driving wheel (6) and the driven wheel, and a driving motor (5), and also comprises a clutch (9) for cutting off or engaging the power transmission between the driving motor (5) and the driving wheel (6); the push rod (2) is connected to the synchronous belt (8) via a material rod frame (10); and the material rod frame (10) is connected to the conveying frame (1) via a guide mechanism; It also includes a plurality of material clamping modules arranged along the length direction of the conveying frame (1), the material clamping modules including a material clamping seat (18), a material clamping shaft (19) rotatably arranged on the material clamping seat (18), a material clamping driving mechanism for driving the material clamping shaft (19) to rotate, a clamping roller frame (20), and a material clamping roller (21) arranged on the clamping roller frame (20), the material clamping seat (18) being arranged on the conveying frame (1), the clamping roller frame (20) being connected to the material clamping shaft (19), and the material clamping roller (21) swinging with the axis of the material clamping shaft (19) as a rotation fulcrum under the action of the material clamping driving mechanism.

2. The system for pipe transportation according to claim 1, characterized in that: The guide mechanism comprises a guide rail (11) and a rod frame slider (12) matched with the guide rail (11); the guide rail (11) is arranged on the conveying frame (1), and the rod frame slider (12) is arranged on the material rod frame (10).

3. The system for pipe transportation according to claim 2, characterized in that: It also includes a rod head shield (13), a connecting mechanism is provided between the rod head shield (13) and the material rod frame (10), the connecting mechanism includes a connecting guide rod (14), both ends of the connecting guide rod (14) are connected to the guide rail (11) via guide rod sliders (15), the rod frame slider (12) is arranged between the two guide rod sliders (15), and the material rod frame (10) or the rod frame slider (12) can move along the connecting guide rod (14).

4. The system for pipe transportation according to claim 3, characterized in that: The connecting guide rod (14) is provided with a first limiting member (16) and a second limiting member (17) for limiting the position of the rod frame slider (12).

5. The system for pipe transportation according to any one of claims 1 to 4, characterized in that: The material clamping drive mechanism comprises a material clamping cylinder (22) and a material clamping rod (23) connected to a piston rod of the material clamping cylinder (22); the material clamping rod (23) is axially movably arranged on a material clamping housing; the material clamping rotating shaft (19) is provided with a material clamping gear (191); the material clamping rod (23) is provided with a material clamping rack (231) meshing with the material clamping gear (191); under the telescopic action of the material clamping cylinder (22), the material clamping roller (21) presses against or moves away from a pipe fitting (37) located on the roller assembly.

6. The system for pipe transportation according to any one of claims 1 to 4, characterized in that: The roller assembly comprises a pair of supporting rollers (7), and the wheel axle ends of the supporting rollers (7) are respectively connected to the conveying frame (1) via roller frames.

7. The system for pipe transportation according to any one of claims 1 to 4, characterized in that: It also includes a feeding mechanism arranged on one side of the conveying frame (1), the feeding mechanism including a material rack (24) for storing the pipe fittings (37) to be processed, a stopper (25) for stopping the material, and a material pushing mechanism for pushing the pipe fittings (37) on the material rack (24) over the stopper (25) for loading, and the bearing surface of the material rack (24) is arranged to be inclined.

8. The system for pipe transportation according to claim 7, characterized in that: At least two ejection mechanisms are provided, and the ejection mechanisms include an ejection rod (26) and an ejection shaft (27). The material rack (24) is provided with an ejection rod hole. The ejection rod (26) is axially movably arranged on an ejection housing. The ejection housing is arranged on the material rack (24). The ejection shaft (27) is rotatably arranged on the ejection housing. The ejection rod (26) is provided with an ejection rack (261). The ejection shaft (27) is provided with an ejection gear (271) meshing with the ejection rack (261). Adjacent ejection shafts (27) are connected via an ejection transmission shaft (28). The ejection shaft (27) and the ejection transmission shaft (28) rotate under the action of the ejection power mechanism.

9. The system for pipe transportation according to claim 8, characterized in that: The invention also comprises a material unloading mechanism arranged on the other side of the conveying frame (1), the material unloading mechanism comprising a material unloading transmission shaft (35) and at least two material unloading paddles (34) arranged on the material unloading transmission shaft (35), the material unloading transmission shaft (35) being rotatably arranged on a material unloading seat, the material unloading seat being arranged on the conveying frame (1) or the material blocking shell, and the material unloading transmission shaft (35) being rotated under the action of the material unloading driving mechanism.

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