Round pipe forming machine

Abstract

The invention discloses a round pipe forming machine, which belongs to the field of pipeline processing equipment, and comprises a coiled material frame, a conveyor, a pre-rolling machine, a rolling machine, a welding mechanism, a cutting device, a correcting mechanism, a cooling conveying frame and a material receiving frame which are sequentially distributed, and further comprises a cleaning mechanism positioned in front of the rolling machine, the roller press comprises a roller press rack, a driving device, a plurality of sets of forming rollers used for forming and a plurality of sets of adjusting mechanisms I used for adjusting a circular pipe to be formed into a conical shape. Compared with a traditional round pipe forming machine, the round pipe forming machine not only has a manufacturing assembly line from steel plate raw materials to round pipe forming, but also can directly form conical pipes of different specifications according to requirements, not only meets the production requirements of the round pipes and the conical pipes, but also reduces capital, maintenance and space occupation of traditional independent production equipment.

Description

Technical Field

[0001] The invention belongs to the field of pipeline processing equipment, and in particular relates to a round tube forming machine. Background Art

[0002] Hollow steel pipes can be divided into two types according to their shapes: square pipes and round pipes. The difference between square pipes and round pipes is mainly in shape and use. In comparison, square pipes are stronger. However, in some special fields, such as conveying fluids, round pipes have higher conveying efficiency and better conveying effects. When choosing, you should choose the appropriate steel pipe according to the application requirements.

[0003] A tapered pipe refers to a tapered seamless pipe designed and manufactured using seamless steel pipes as raw materials through special equipment and processes. Seamless tapered steel pipes are filtering elements between pipes of different diameters in ship piping systems. The main material is carbon steel, but it can also be stainless steel or alloy steel. The taper of a tapered pipe refers to the degree to which the diameters of the two pipes at the pipe joint gradually become thinner. The design and manufacture of tapered pipes need to take into account factors such as the firmness and sealing of the pipe connection and the efficiency of fluid transmission. The taper of a tapered pipe can be adjusted according to specific application requirements. Generally speaking, the larger the taper of a tapered pipe, the better the strength and sealing of the pipe connection.

[0004] For the current conical tube forming, one end of the formed round tube is inserted into a round tube cone reduction machine for forming. Therefore, two steps are required to complete the process of forming the steel plate raw material into a conical tube. At the same time, the equipment must be equipped with a round tube forming machine and a cone reduction machine. This not only increases the processing time, but also places a certain burden on the capital and maintenance of the equipment. Summary of the invention

[0005] In view of the above defects, the present invention provides a round tube forming machine, which also includes a cleaning mechanism located in front of a roller press, wherein the pre-roller press is connected to the roller press through a conveying frame, the roller press includes a roller press frame, a driving device, several groups of forming rollers for forming, and several groups of adjusting mechanisms I for adjusting the round tube to be formed into a cone, wherein the adjusting mechanism I includes two groups of adjusting rollers, including one group of positioning adjusting rollers and three groups of squeezing adjusting rollers, and two mirror-imaged linkage rods, wherein the positioning adjusting rollers are connected to the roller press frame, one end of the linkage rod is connected to the positioning adjusting rollers, the three groups of squeezing adjusting rollers are all rotatably connected to the linkage rods, and the squeezing adjusting rollers can rotate with the rotation of the linkage rods, and a driving motor I is mounted on the top of the roller press frame, a guide plate is fixed to the output end of the driving motor I, the linkage rod is fixed to the adjacent guide plate through an integrally formed connecting plate, and the axis of the output end of the driving motor I is concentrically arranged with the axis of the positioning adjusting roller;

[0006] The cooling and conveying frame includes an adjusting mechanism II adapted to the conical tube, and the adjusting mechanism II is used to control and adjust a plurality of nozzles installed at the cooling and conveying frame.

[0007] Furthermore, two mounting plates are installed on the top of the roller press frame, and a plurality of forming rollers are divided into two groups and respectively installed on the two mounting plates, and the forming rollers on both sides correspond to each other one by one, and a reserved groove opened on the mounting plate is provided between every two forming rollers on the same side, and an adjusting roller is installed at the center of each reserved groove through a rotating shaft;

[0008] A sliding block is installed at the bottom of the rotating shaft, and the sliding block is installed on the top of the arc-shaped sliding rail. The interior of each linkage rod is rotationally connected with the corresponding adjusting roller at the bottom through an embedded bearing.

[0009] Furthermore, the centers of the arc-shaped slide rails located on the same side are concentrically distributed, and the center of the adjustment roller closest to one end of the connecting plate is taken as the center of the circle.

[0010] Furthermore, the two driving motors 1 rotate synchronously and in opposite directions.

[0011] Furthermore, the cleaning mechanism includes two fixed frames symmetrically fixed to the left end of the top of the roller press frame, and the ends of the two fixed frames away from each other are respectively installed with dust removal equipment and drive motor II;

[0012] The input end of the dust removal device is connected to the dust collection bin fixed between the bottoms of the two fixed frames through a dust collection pipe;

[0013] The driving motor II is installed on the motor frame, and the output end of the driving motor II is connected to the driving rod through a reducer. Two symmetrically arranged bevel gears I are fixed to the outer ring of the driving rod. The top end of the driving rod is reinforced to the outside of the fixing frame on the same side through a joint shaft. Two cleaning rollers are installed between the two fixing frames through two rotating shafts, and one end of the rotating shaft passes through the fixing frame on the same side and extends to a side close to the driving rod, and is fixed with a bevel gear II. The two bevel gears II are respectively meshed with the bevel gear I at the same horizontal position for transmission;

[0014] The steel plate raw material passes between the two cleaning rollers, and a side opening for scraping the welding end of the steel plate raw material is opened on one side adjacent to the two fixing frames, and a scraper is fixed on the inner top wall and the inner bottom wall of the side opening.

[0015] Furthermore, the cutting device is installed on the outer shell on the top of the forming roller, and the cutting end is located on the left side of the leftmost adjusting roller.

[0016] Furthermore, a group of synchronously working electric push rods are installed at the bottom of the cooling conveying frame near one end of the correction mechanism, and the bottom ends of the electric push rods are fixed to the connecting beam between the cooling conveying frame and the correction mechanism base. A water hole is provided in the inner groove in the middle of the cooling conveying frame for water flow, and the water hole is connected to the purification bucket installed at the bottom of the cooling conveying frame;

[0017] A water pump is installed at the bottom of the cooling conveyor rack. The input end of the water pump is connected to an external water source, and the output end of the water pump is connected to the fixed pipes on the front and rear sides of the cooling conveyor rack through a diversion pipe. The nozzles on the front and rear sides of the cooling conveyor rack are connected to the pipes on the same side through hoses.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. Compared with the traditional round tube forming machine, it not only has a production line from steel plate raw materials to round tubes, but also can directly form tapered tubes of different specifications according to needs, which not only meets the production needs of round tubes and tapered tubes, but also reduces the capital, maintenance and space occupation of traditional single production equipment;

[0020] 2. Synchronous adaptation can be performed by setting the adjustment mechanism I and the adjustment mechanism II. The adjustment roller and the nozzle can be synchronously adapted to the change of the forming requirements of the tapered tube, thereby ensuring the cooling efficiency of the nozzle;

[0021] 3. By setting up a cleaning mechanism, the steel plate raw material can be cleaned before bending to prevent the subsequent poor welding effect due to the presence of foreign matter on the welding end of the steel plate surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is an overall schematic diagram of the present invention.

[0023] Figure 2 for Figure 1 A is an enlarged schematic diagram.

[0024] Figure 3 It is a top view of the roller press frame in the present invention.

[0025] Figure 4 It is a side view of the cleaning mechanism of the present invention.

[0026] Figure 5 It is a top view of the cooling and conveying rack in the present invention.

[0027] Figure 6 It is a schematic diagram of the extension lines of each arc-shaped slide rail in the present invention.

[0028] Figure 7 It is a schematic diagram of the positions that need to be cut when the round tube is formed into a tapered tube in the present invention.

[0029] Figure 8 It is an enlarged view of the forming roller with adjustable passing distance in the present invention.

[0030] In the figure: 1, coil rack; 2, conveyor; 3, cleaning mechanism; 31, fixed rack; 32, dust removal equipment; 33, dust collection bin; 34, side opening; 35, scraper; 36, drive motor II; 37, reducer; 38, drive rod; 39, bevel gear I; 310, joint shaft; 311, bevel gear II; 312, rotating shaft; 313, cleaning roller; 4, pre-roller press; 5, conveyor rack; 6, roller press; 61, roller press rack; 62, mounting plate; 63, reserved slot; 6 4. Recovery port; 65. Arc slide rail; 66. Slider; 7. Forming roller; 8. Cutting equipment; 9. Adjustment mechanism I; 91. Adjustment roller; 91a. Positioning adjustment roller; 91b. Extrusion adjustment roller; 92. Rotating shaft; 93. Guide plate; 94. Drive motor I; 95. Connecting plate; 96. Linkage rod; 10. Welding mechanism; 11. Correction mechanism; 12. Cooling and conveying rack; 13. Nozzle; 14. Purification bucket; 15. Material collection rack; 16. Detection equipment; 17. Drain hole. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Example

[0033] like Figure 1 As shown, this embodiment provides a round tube forming machine, including a coil rack 1, a conveyor 2, a pre-rolling machine 4, a roller press 6, a welding mechanism 10, a cutting device 8, a correction mechanism 11, a cooling conveying rack 12 and a material receiving rack 15, which are sequentially distributed. It should be noted that the above structure is the same as the traditional round tube forming production line, and the same structure can be used;

[0034] like Figure 2-3 As shown, it also includes a cleaning mechanism 3 located in front of the roller press 6. The pre-roller press 4 is connected to the roller press 6 through a conveying frame 5. The conveying frame 5 adopts a traditional roller frame. Whether to install a drive can be determined according to the specific length. When the distance is short, the conveying can be achieved through the conveying of the pre-roller press 4. Otherwise, a drive needs to be installed to prevent the raw materials from being retained at the conveying frame 5.

[0035] The roller press 6 includes a roller press frame 61 and a driving device. In this embodiment, the number of forming rollers 7 is 5 groups, and the adjusting mechanism 19 includes 4 groups of adjusting rollers 91, wherein the 4 groups of adjusting rollers 91 are divided into 1 group of fixed-position positioning adjusting rollers 91a and 3 groups of movable squeezing adjusting rollers 91b (i.e., the squeezing adjusting rollers 91b are installed on the top of the slider 66), and a linkage rod 96 for controlling the synchronous movement of the squeezing adjusting rollers 91b on the same side. The linkage rod 96 is fixedly connected to the guide plate 93 fixed to the output end of the driving motor 194 on the same side through a connecting plate 95 integrally formed at the left end, and the two driving motors 1 94 rotate synchronously and in the opposite direction. It should be noted that the specific number of the forming rollers 7 and the adjusting rollers 91 needs to be determined according to the length of the forming, which will not be repeated here. At the same time, in order to ensure the clamping force of the round tube into the conical tube, the drive motor I94 adopts a torque motor. Compared with the traditional rotary motor, the torque motor has higher efficiency and precise control ability in the scene where a large torque needs to be applied to the load, or an electric hydraulic rod is hinged at the rightmost end of the linkage rod 96 (horizontally set, and can be fixed by adding a vertical pole) to cooperate with the rotation of the drive motor I94 to provide greater thrust;

[0036] Two mounting plates 62 are installed on the top of the roller press frame 61. A plurality of forming rollers 7 are divided into two groups and are respectively installed on the two mounting plates 62. The forming rollers 7 on both sides correspond to each other. A reserved groove 63 opened on the mounting plate 62 is provided between each two forming rollers 7 on the same side. The center of each reserved groove 63 is connected to the adjusting roller 91 through a rotating shaft 92. Figure 1 ;

[0037] like Figure 8 As shown, the forming rollers 7 at the front and rear ends of the three squeezing adjustment rollers 91b on the right side are structures with adjustable passing spacing (such as using an adjusting roller seat with a screw adjustment structure), or are realized by manually replacing rollers of different diameters, so as to adapt to the passage of subsequent tapered tubes;

[0038] The bottom of the rotating shaft 92 is provided with a slider 66, and each slider 66 is respectively installed on the top of the corresponding arc-shaped slide rail 65 at the bottom, and each arc-shaped slide rail 65 is fixed on the top of the roller press frame 61, and the interior of each linkage rod 96 is rotatably connected with the corresponding adjusting roller 91 at the bottom through an embedded bearing;

[0039] It should be noted that if Figure 6 As shown, the centers of the arc-shaped slide rails 65 on the same side are concentrically distributed, and the center of the positioning and adjusting roller 91a closest to one end of the connecting plate 95 is the center of the circle.

[0040] Its working principle is: when it is necessary to perform a conical tube forming operation, after it has been formed into a round tube shape by multiple forming rollers 7, the two driving motors 194 respectively drive the two guide plates 93 to rotate in opposite directions (the guide plate 93 at the front end rotates clockwise, and the guide plate 93 at the rear end rotates counterclockwise), so that the respectively connected linkage rods 96 rotate with the center of the positioning adjustment roller 91a, so that the right ends of the two linkage rods 96 move away from each other, so that the two linkage rods 96 synchronously drive the squeezing adjustment roller 91b at the right end of the same side to slide along the arc-shaped slide rail 65 at the bottom. Since the positions of the arc-shaped slide rails 65 are different, when the linkage rods 96 move, the two linkage rods 96 move from the same horizontal line state to the state of their own extension lines crossing (should be on the same radial line), thereby adjusting to the structural condition of forming a conical tube. As the round tube is gradually transported from left to right, as the spacing (the leftmost end) is gradually tightened, the unwelded round tube can be shaped into a cone (the shape can be referred to Figure 7 ), at this time, the operation of each equipment used for transportation is stopped through timing control or manual monitoring. Figure 7 The right dotted cutting point in the figure is at the bottom of the cutting device 8, and the cutting device 8 cuts here to form a formed conical tube and a round tube (the cutting end will be deformed due to the conical shape), and then the various equipments for conveying are started through timing control or manual monitoring. Figure 7 The left dotted cutting point in the figure stops again after being at the bottom of the cutting device 8. The cutting device 8 cuts here to complete the truncation of the deformed part, and falls into the opened recovery port 64 for recovery, and then continues to work reciprocatingly. The formed conical tube will be welded by the subsequent welding mechanism 10, cooled by the cooling conveying rack 12, and then recovered by the receiving rack 15.

[0041] Specifically, the cleaning mechanism 3 includes two fixed frames 31 symmetrically fixed to the left end of the top of the roller frame 61, and the ends of the two fixed frames 31 away from each other are respectively installed with dust removal equipment 32 (i.e., a traditional industrial dust removal machine) and a drive motor II36;

[0042] The input end of the dust removal device 32 is connected to the dust collection bin 33 fixed between the bottoms of the two fixed frames 31 through a dust collection pipe, so as to facilitate the collection of dust;

[0043] like Figure 4-5As shown, a driving motor II36 is installed at a motor frame, and an output end of the driving motor II36 is connected to a driving rod 38 through a reducer 37. Two symmetrically arranged bevel gears I39 are fixed to the outer ring of the driving rod 38. The top of the driving rod 38 is reinforced to the outside of the fixing frame 31 on the same side through a joint shaft 310. Two cleaning rollers 313 are installed between the two fixing frames 31 through two rotating shafts 312, and one end of the rotating shaft 312 passes through the fixing frame 31 on the same side and extends to a side close to the driving rod 38, and is fixed with a bevel gear II311. The two bevel gears II311 are respectively meshed with the bevel gear I39 at the same horizontal position for transmission;

[0044] The steel plate raw material passes between the two cleaning rollers 313, and a side opening 34 for scraping the welding end of the steel plate raw material is opened on the adjacent side of the two fixing frames 31. A scraper 35 is fixed on the inner top wall and the inner bottom wall of the side opening 34 to scrape the two ends of the steel plate (so that there is no debris attached to the surface) to ensure the smoothness of the two ends for subsequent welding;

[0045] A group of synchronously working electric push rods are installed at the bottom of the cooling conveying frame 12 near one end of the correction mechanism 11 through a pin shaft. The electric push rods are fixed on the connecting beam between the cooling conveying frame 12 and the base of the correction mechanism 11. The cooling conveying frame 12 is lifted up by the electric push rods to facilitate the collection of wastewater. In order to realize the lifting function, the support column at the bottom of the cooling conveying frame 12 should be a telescopic structure and hinged through a pin shaft, or placed in a way that it is not fixed to the bottom of the cooling conveying frame 12;

[0046] The inner groove in the middle of the cooling conveying frame 12 for water flow is provided with a drain hole 17, and the drain hole 17 is connected to the purification bucket 14 installed at the bottom of the cooling conveying frame 12. It should be noted that the purification bucket 14 is a traditional filter (with an ultrafiltration membrane and other structures arranged inside), which is convenient for the reuse of cooling water;

[0047] A water pump is installed at the bottom of the cooling and conveying rack 12. The input end of the water pump is connected to an external water source, and the output end of the water pump is connected to the pipes fixed on the front and rear sides of the cooling and conveying rack 12 through a shunt pipe. The nozzles 13 on the front and rear sides of the cooling and conveying rack 12 are connected to the pipes on the same side through hoses, so that the water pump can deliver water to each nozzle 13.

[0048] The cooling conveying rack 12 includes an adjusting mechanism II adapted to the conical tube. The adjusting mechanism II is used to control and adjust a plurality of nozzles 13 installed at the cooling conveying rack 12. The adjusting mechanism II is a waterproof motor installed at the nozzle 13. The rotation of the nozzle 13 is adjusted by rotating the motor (the nozzle 13 includes a nozzle and a hose, and the output end of the motor is connected to the outer wall of the nozzle), which is adapted to the shape of the conical tube.

[0049] In addition, a detection device 16 may be installed at the receiving rack 15 to count the number of objects falling into the circular tube or conical tube (the detection device 16 may use existing devices such as photoelectric sensors and laser sensors to achieve counting, which will not be described in detail here).

[0050] It should be noted that the structure described in the present invention can be implemented in a variety of different forms and is not limited to the described embodiments. Any equivalent transformations made by ordinary technicians in this field using the contents of the present invention description and drawings, or directly or indirectly applied to other related technical fields, such as the loading and unloading of other items, are included in the protection scope of the present invention.

Claims

1. A round tube forming machine, comprising a coil rack, a conveyor, a pre-roller, a roller press, a welding mechanism, a cutting device, a correction mechanism, a cooling conveyor rack and a material receiving rack, which are sequentially arranged, characterized in that: It also includes a cleaning mechanism located in front of the roller press, the pre-roller press is connected to the roller press through a conveying frame, the roller press includes a roller press frame, a driving device, several groups of forming rollers for forming, and several groups of adjusting mechanisms I for adjusting the round tube to be formed into a cone, the adjusting mechanism I includes two groups of adjusting rollers, including one group of positioning adjusting rollers and three groups of squeezing adjusting rollers, and two mirror-imaged linkage rods, the positioning adjusting rollers are connected to the roller press frame, one end of the linkage rod is connected to the positioning adjusting roller, the three groups of squeezing adjusting rollers are all rotatably connected to the linkage rod, and the squeezing adjusting rollers can rotate with the rotation of the linkage rod, a driving motor I is mounted on the top of the roller press frame, a guide plate is fixed to the output end of the driving motor I, the linkage rod is fixed to the adjacent guide plate through an integrally formed connecting plate, and the axis of the output end of the driving motor I is concentrically arranged with the axis of the positioning adjusting roller; The cooling and conveying frame includes an adjusting mechanism II adapted to the conical tube, and the adjusting mechanism II is used to control and adjust a plurality of nozzles installed at the cooling and conveying frame.

2. A round tube forming machine as claimed in claim 1, characterized in that: Two mounting plates are installed on the top of the roller press frame, and a plurality of forming rollers are divided into two groups and respectively installed on the two mounting plates, and the forming rollers on both sides correspond to each other, and a reserved groove opened on the mounting plate is provided between every two forming rollers on the same side, and an adjusting roller is installed at the center of each reserved groove through a rotating shaft; A sliding block is installed at the bottom of the rotating shaft, and the sliding block is installed on the top of the arc-shaped sliding rail. The interior of each linkage rod is rotationally connected with the corresponding adjusting roller at the bottom through an embedded bearing.

3. A round tube forming machine as claimed in claim 2, characterized in that: The centers of the arc-shaped slide rails on the same side are concentrically distributed, and the center of the adjusting roller closest to one end of the connecting plate is taken as the center of the circle.

4. A round tube forming machine as claimed in claim 2, characterized in that: The two drive motors 1 rotate synchronously and in opposite directions.

5. A round tube forming machine as claimed in claim 1, characterized in that: The cleaning mechanism comprises two fixed frames symmetrically fixed to the left end of the top of the roller press frame, and the ends of the two fixed frames away from each other are respectively equipped with dust removal equipment and drive motor II; The input end of the dust removal device is connected to the dust collection bin fixed between the bottoms of the two fixed frames through a dust collection pipe; The driving motor II is installed on the motor frame, and the output end of the driving motor II is connected to the driving rod through a reducer. Two symmetrically arranged bevel gears I are fixed to the outer ring of the driving rod. The top end of the driving rod is reinforced to the outside of the fixing frame on the same side through a joint shaft. Two cleaning rollers are installed between the two fixing frames through two rotating shafts, and one end of the rotating shaft passes through the fixing frame on the same side and extends to a side close to the driving rod, and is fixed with a bevel gear II. The two bevel gears II are respectively meshed with the bevel gear I at the same horizontal position for transmission; The steel plate raw material passes between the two cleaning rollers, and a side opening for scraping the welding end of the steel plate raw material is opened on one side adjacent to the two fixing frames, and a scraper is fixed on the inner top wall and the inner bottom wall of the side opening.

6. A round tube forming machine as claimed in claim 1, characterized in that: The cutting device is installed on the outer shell on the top of the forming roller, and the cutting end is located on the left side of the leftmost adjusting roller.

7. A round tube forming machine as claimed in claim 1, characterized in that: A group of synchronously working electric push rods are installed at the bottom of the cooling conveying frame near one end of the correction mechanism, and the bottom ends of the electric push rods are fixed to the connecting beam between the cooling conveying frame and the correction mechanism base. A water hole is provided in the inner groove in the middle of the cooling conveying frame for water flow, and the water hole is connected to the purification bucket installed at the bottom of the cooling conveying frame; A water pump is installed at the bottom of the cooling conveyor rack. The input end of the water pump is connected to an external water source, and the output end of the water pump is connected to the fixed pipes on the front and rear sides of the cooling conveyor rack through a diversion pipe. The nozzles on the front and rear sides of the cooling conveyor rack are connected to the pipes on the same side through hoses.

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