Pipe traction equipment

Abstract

The invention provides pipe traction equipment, and relates to the technical field of pipe machining. The pipe traction equipment comprises a conveying device and a clamping device. The conveying device is at least used for driving the clamping device to move in the first direction. The clamping device comprises a base, a first clamping piece, a second clamping piece and a control piece. The base is arranged on the conveying device; the first clamping piece and the second clamping piece can rotate around a second direction and are arranged on the base, so that the free end of the first clamping piece and the free end of the second clamping piece are driven to be close to or away from each other, and the first clamping piece and the second clamping piece are at least used for clamping and fixing the pipe; the control piece is movably arranged on the base and at least used for driving the first clamping piece and / or the second clamping piece to rotate relative to the base. The pipe traction equipment can adapt to the shapes and sizes of different pipes, the manual operation time and the pipe traction or transportation time are shortened, the pipe traction and transportation efficiency is improved, and then the pipe production efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of pipe processing, and in particular to a pipe pulling device. Background Art

[0002] Pipes are widely used in daily life and industrial production. For example, copper pipes, as an important pipe product, are widely used in water supply and drainage systems, power transmission and distribution systems, signal transmission systems, and refrigeration systems due to their high strength, good toughness, electrical conductivity, thermal conductivity, and corrosion resistance. Pipe pulling equipment is an indispensable and important equipment on the pipe production line. It is mainly used to pull the pipe out of the extrusion die smoothly and evenly, and transport it to the subsequent cooling, straightening and other processes.

[0003] Tubes are mostly made using extrusion technology. The extruder applies tremendous pressure to squeeze the raw material into a tubular shape. During the extrusion process, the raw material is first fed into the hopper of the extruder, and then fed into the die through a series of precise mechanical devices. The shape and size of the die can determine the shape and size of the final cross-section of the tube. Under the pressure of the extruder, the raw material is forced through the gap of the die and is extruded into a continuous tubular shape.

[0004] The temperature of the extruded pipe is high. If it is not cooled down in time, it may cause the pipe to deform or reduce its performance due to high temperature. Therefore, these high-temperature pipes will be pulled into the cooling tank for cooling. The cooling tank is usually filled with coolants (such as cold water, ice water mixture or special coolant), which can absorb the heat of the pipe and quickly cool it to room temperature or close to room temperature.

[0005] After cooling, the pipe has a certain shape and size, but there are still some bends or twists. In order to ensure that the straightness and dimensional accuracy of the pipe meet the requirements of subsequent use or processing, these pipes will be transported to the straightening equipment for processing. The straightening equipment uses mechanical devices and control systems to accurately adjust and correct the pipe. During the straightening process, the pipe is gradually straightened and adjusted repeatedly until its straightness and dimensional accuracy meet the specified standards.

[0006] In the production process of pipes, pipe pulling equipment is required to pull the pipes between the extruder, cooling device, and straightening device to reduce the transportation time of the pipes between the various process equipment. However, due to the different diameters of different pipes, traditional pulling equipment is often difficult to adapt to and effectively clamp pipes of different sizes. This limitation directly restricts the pulling and transportation efficiency of the pipes, thereby reducing the production efficiency of the entire production process. Therefore, how to overcome the pulling problem caused by the change in pipe diameter has become the key to improving the efficiency of pipe production. Summary of the invention

[0007] The pipe pulling equipment provided in the embodiment of the present application is used to solve the problem of low production efficiency of pipes.

[0008] The pipe pulling equipment provided in the embodiment of the present application includes a conveying device and a clamping device;

[0009] The conveying device is at least used to drive the clamping device to move along the first direction;

[0010] The clamping device comprises a base, a first clamping member, a second clamping member and a control member; the base is arranged on the conveying device;

[0011] The first clamping member and the second clamping member can be rotatably arranged on the base around the second direction to drive the free end of the first clamping member and the free end of the second clamping member to approach or move away from each other. The first clamping member and the second clamping member are at least used to clamp, fix or release the pipe;

[0012] The control member is movably disposed on the base, and the control member is at least used to drive the first clamping member and / or the second clamping member to rotate relative to the base.

[0013] The first direction is the direction of pulling the pipe; the first clamping member and the second clamping member are arranged on the mounting surface of the base, and the second direction is a direction perpendicular to the mounting surface.

[0014] In some embodiments of the present application, the control member can drive the first clamping member and the second clamping member to rotate synchronously, and the rotation direction of the first clamping member is opposite to the rotation direction of the second clamping member.

[0015] In some embodiments of the present application, the clamping device further includes a transmission assembly, the transmission assembly including a first gear and a second gear meshing with each other;

[0016] The first gear and the rotating shaft of the first clamping member are coaxially fixedly connected, and the second gear and the rotating shaft of the second clamping member are coaxially fixedly connected;

[0017] The control member drives at least one of the first gear and the second gear to rotate relative to the base around a second direction.

[0018] In some embodiments of the present application, the control member can rotate relative to the base around the second direction.

[0019] In some embodiments of the present application, the transmission assembly further includes a connecting rod, the control member further includes a first angular connection portion, and the first angular connection portion is rotatably arranged around a rotation axis of the control member; the first end of the connecting rod is rotatably connected to the first angular connection portion, and the second end of the connecting rod is rotatably connected to the first gear;

[0020] In a plane perpendicular to the second direction, the direction of the line connecting the first end and the second end of the connecting rod is parallel to the direction of the line connecting the rotation axis of the first gear and the rotation axis of the control member;

[0021] In a plane perpendicular to the second direction, the direction of a line connecting the first end of the connecting rod and the rotation axis of the control member is parallel to the direction of a line connecting the second end of the connecting rod and the rotation axis of the first gear.

[0022] In some embodiments of the present application, the first gear has a first tooth edge, and a central angle corresponding to the first tooth edge is greater than or equal to 60 degrees and less than or equal to 120 degrees;

[0023] The second gear has a second tooth edge, and a central angle corresponding to the second tooth edge is greater than or equal to 60 degrees and less than or equal to 120 degrees.

[0024] In some embodiments of the present application, the conveying device includes a driving member, a driving wheel set and a driving chain; the driving chain is wound around the driving wheel set, and the driving member drives the driving chain to move through the driving wheel set.

[0025] In some embodiments of the present application, the conveying device includes an adjusting member, and the output end of the driving member drives the multiple driving wheel groups to rotate through the adjusting member.

[0026] In some embodiments of the present application, there are multiple driving wheel sets, and the multiple driving wheel sets include a first driving wheel set and a second driving wheel set;

[0027] When the adjusting member is in the first state, the first driving wheel set and the second driving wheel set rotate synchronously and in the same direction; when the adjusting member is in the second state, one of the first driving wheel set and the second driving wheel set is stationary and the other rotates.

[0028] In some embodiments of the present application, a disengagement device is further included, and the disengagement device and the base are respectively arranged on different driving wheel groups;

[0029] When the adjusting member is in the second state, the disengaging device can be used to drive the control member to rotate so as to move the free end of the first clamping member away from the free end of the second clamping member.

[0030] In some embodiments of the present application, the control member includes a third corner connection portion, which is rotatably arranged around the control member rotation axis and fixedly connected to the first corner connection portion;

[0031] When the disengaging device is working, the disengaging device drives the control member to rotate through the third angle connection part, so as to drive the first clamping member and the second clamping member to rotate, so that the free ends of the first clamping member and the second clamping member are separated to release the pipe.

[0032] The embodiment of the present application provides a pipe pulling device, including a conveying device and a clamping device. The conveying device is at least used to drive the clamping device to move along a first direction (the direction of pipe pulling). The clamping device includes a base, a first clamping member, a second clamping member and a control member. The base is arranged on the conveying device, and the first clamping member and the second clamping member can be rotated around the second direction (perpendicular to the mounting surface on the base) and arranged on the base, and the control member can be movably arranged on the base. The control member can drive the first clamping member and the second clamping member to rotate relative to the base, so that the free end of the first clamping member and the free end of the second clamping member are close to or away from each other, and the distance between the free end of the first clamping member and the free end of the second clamping member can be adjusted. The free end of the first clamping member and the free end of the second clamping member clamp and fix the pipe in the process of pipe pulling, which can adapt to the shapes and sizes of different pipes, thereby meeting different clamping requirements. Such a setting reduces the time of manual operation and pipe pulling or transportation, improves the efficiency of pipe pulling or transportation, and thus improves the production efficiency of pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0034] Figure 1 A schematic diagram of the structure of the pipe pulling equipment provided in the embodiment of the present application;

[0035] Figure 2 A partial structural schematic diagram of a first driving wheel assembly provided in an embodiment of the present application;

[0036] Figure 3 A partial structural schematic diagram of a second driving wheel assembly provided in an embodiment of the present application;

[0037] Figure 4 A schematic diagram of the structure of a disengagement device provided in an embodiment of the present application;

[0038] Figure 5 A schematic diagram of the structure of the clamping device provided in an embodiment of the present application;

[0039] Figure 6 A top view of the clamping device provided in an embodiment of the present application.

[0040] Description of reference numerals:

[0041] 10- conveying device;

[0042] 110- driving member;

[0043] 120-driving wheel set; 121-first driving wheel set; 122-second driving wheel set; 1211-first driving sprocket; 1212-first driven sprocket; 1221-second driving sprocket; 1222-second driven sprocket;

[0044] 130-drive chain;

[0045] 140-adjustment part;

[0046] 20- clamping device;

[0047] 210- base;

[0048] 220-first clamping member; 221-first clamping plate;

[0049] 230 - second clamping member; 231 - second clamping plate;

[0050] 240-control part; 241-first corner connection part; 242-second corner connection part; 243-third corner connection part;

[0051] 250-transmission assembly; 251-first gear; 252-second gear; 253-connecting rod; 2511-first tooth edge; 2521-second tooth edge;

[0052] 30-disengagement device;

[0053] 310- driving chain connection part;

[0054] 320-ramming rod;

[0055] L-first direction; T-second direction.

[0056] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0057] In the related technology, during the production process of pipes, the raw materials can be squeezed into a tubular shape by the pressure of an extruder. Subsequently, these extruded pipes are pulled to a cooling tank for cooling to prevent deformation or performance degradation of the pipes due to high temperature. Then, the pipes are transported to the straightening equipment for processing to ensure that the straightness and dimensional accuracy of the pipes meet the requirements of subsequent use or processing.

[0058] Pipes are usually pulled by pulling equipment to improve the production efficiency of the production process. However, due to the different diameters of different pipes, the pulling equipment cannot clamp pipes of different diameters, resulting in low pulling or transportation efficiency of the pipes, which in turn leads to low production efficiency of the pipes.

[0059] In view of this, an embodiment of the present application provides a pipe traction device, including a conveying device and a clamping device. The conveying device is at least used to drive the clamping device to move along a first direction (the direction of pipe traction). The clamping device includes a base, a first clamping member, a second clamping member and a control member. The base is arranged on the conveying device, and the first clamping member and the second clamping member can be rotatably arranged on the base around a second direction (perpendicular to the mounting surface on the base), and the control member can be movably arranged on the base. The control member can drive the first clamping member and the second clamping member to rotate relative to the base, so that the free end of the first clamping member and the free end of the second clamping member are close to or away from each other, and the distance between the free end of the first clamping member and the free end of the second clamping member can be adjusted. By clamping and fixing the pipe during the pipe traction process by the free end of the first clamping member and the free end of the second clamping member, it can adapt to the shapes and sizes of different pipes, thereby meeting different clamping requirements. Such a setting reduces the time of manual operation and pipe traction or transportation, improves the traction or transportation efficiency of the pipe, and thus improves the production efficiency of the pipe.

[0060] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0061] The technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0062] The embodiment of the present application provides a pipe pulling device for pulling pipes in the pipe production process. The pipes include metal pipes, plastic pipes, composite pipes, etc. The metal pipes may be copper pipes, aluminum pipes, steel pipes, etc. For example, in the production process of copper pipes, the pipe pulling device can be used to pull the copper pipes between the extruder, the cooling tank, and the straightening equipment to reduce the transportation time of the copper pipes between the equipment in each process and ensure the production efficiency of the pipes.

[0063] Reference Figure 1As shown, the pipe pulling device includes a conveying device 10 and a clamping device 20. The clamping device 20 clamps the pipe during the pulling process of the pipe to prevent the pipe from being separated from the pipe pulling device. The conveying device 10 is at least used to drive the clamping device 20 to move along a first direction L. The first direction L is the pulling direction of the pipe. For example, the pipe can be pulled by the conveying device 10 driving the clamping device 20 to move from the current production process to the next production process.

[0064] Further, the conveying device 10 includes a driving member 110, a driving wheel set 120 and a driving chain 130. The driving member 110 can output power to drive the conveying device 10 to operate. For example, the driving member 110 can be a servo motor. The servo motor has the characteristics of high-precision position, speed and fast dynamic response, so that the conveying device 10 can adjust the speed and position quickly, thereby shortening the production cycle of the pipe and improving the production efficiency of the pipe.

[0065] The drive chain 130 is wound around the drive wheel set 120, and the drive wheel set 120 provides support and transmission for the drive chain 130. The conveying device 10 drives the clamping device 20 to move along the extension direction of the drive chain 130. The driving member 110 drives the drive chain 130 to move through the drive wheel set 120. The drive chain 130 is wound around the drive wheel set 120 and moves therewith, thereby driving the clamping device 20 to move, and then driving the pipe to move. The drive chain 130 has the characteristics of high strength and wear resistance, can withstand greater friction, and achieve more efficient and more stable transmission, thereby ensuring that the pipe is relatively smooth, without deformation or bumping when moving. In addition, the structure of the drive chain 130 is relatively simple, and it is easy to check and replace worn parts, which can reduce the maintenance cost and difficulty of the conveying device 10.

[0066] In some embodiments, the pipe pulling device is provided with a control console (not shown in the figure). In some cases, the control console can control the driving member 110 to drive the driving wheel set 120 to rotate, and the control console can also control the number of revolutions and direction of the driving wheel set 120 to drive the driving chain 130 to rotate, thereby controlling the distance that the clamping device 20 pulls the pipe, so that the pipe reaches a specified position, thereby improving the applicability of the pipe pulling device.

[0067] Combination Figure 1 And refer to Figure 4 As shown, the pipe pulling device further includes a disengaging device 30. When the clamping device 20 pulls the pipe to move to the target position, the disengaging device 30 can enable the clamping device 20 to release the pipe, so that the pipe can be disengaged from the clamping device 20 and enter the equipment of the next process (such as a cooling tank or a straightening device). For example, the disengaging device 30 is provided with a drive chain connecting portion 310, and the drive chain connecting portion 310 is connected to the drive chain 130. In this way, the disengaging device 30 can move smoothly.

[0068] Specifically, the detaching device 30 is provided with a striker 320 , and the striker 320 abuts against the clamping device 20 , so that the pipe can be detached from the clamping device 20 and enter the equipment of the next process.

[0069] In some embodiments, there are multiple driving wheel assemblies 120, and the multiple driving wheel assemblies 120 can drive different devices of the pipe pulling equipment to move, so as to achieve efficient coordination of the different devices.

[0070] Combination Figure 1 , Figure 2 and Figure 3 As shown, the plurality of driving wheel groups 120 include a first driving wheel group 121 and a second driving wheel group 122. The first driving wheel group 121 can be provided with a first driving sprocket 1211 and a first driven sprocket 1212. The driving chain 130 is wound around the first driving sprocket 1211 and the first driven sprocket 1212. The first driving sprocket 1211 rotates to wind and disengage the driving chain 130, and the first driven sprocket 1212 is driven to rotate by the driving chain 130, so that the device of the pipe pulling device on the driving chain 130 moves.

[0071] Similarly, the second driving wheel set 122 can be provided with a second driving sprocket 1221 and a second driven sprocket 1222. Another driving chain is wound around the second driving sprocket 1221 and the second driven sprocket 1222. The rotation of the second driving sprocket 1221 can drive the second driven sprocket 1222 to rotate, thereby moving the device of the pipe pulling device on the other driving chain.

[0072] The disengaging device 30 can be arranged on the first driving wheel set 121, and the clamping device 20 can be arranged on the second driving wheel set 122. Through the coordinated rotation of the first driving wheel set 121 and the second driving wheel set 122, the disengaging device 30 and the clamping device 20 are brought close to and in contact with each other, so that the pipe can be disengaged from the clamping device 20 and enter the equipment of the next process.

[0073] It should be noted that the movement between the first drive wheel set 121 and the second drive wheel set 122 can be independent or linked. For example, the first drive wheel set 121 and the second drive wheel set 122 can be connected to different drive members 110 respectively, and the first drive wheel set 121 and the second drive wheel set 122 can be driven by different drive members 110 respectively, so that the movement between the first drive wheel set 121 and the second drive wheel set 122 is independent of each other; or only one drive member 110 can be provided, and the movement state between different drive wheel sets can be adjusted by providing an adjustment member.

[0074] In some embodiments, the conveying device 10 includes an adjusting member 140, and the output end of the driving member 110 can control the rotation state of multiple driving wheel sets 120 through the adjusting member 140. For example, the driving member 110 can drive multiple driving wheel sets 120 to rotate synchronously, or control one or some of the driving wheel sets to rotate, while the other driving wheel sets remain stationary (such as controlling the first driving sprocket 1211 to rotate and the second driving sprocket 1221 to remain stationary), thereby meeting the conveying requirements of different devices and increasing the functionality of the pipe pulling equipment.

[0075] Exemplarily, the adjustment member 140 is configured as a clutch. The console outputs instructions to the clutch, and the clutch can connect or disconnect the power transmission between the drive wheel group 120. The clutch has a relatively simple structure and is easy to install and maintain, which reduces the operating difficulty and maintenance cost of the conveying device 10.

[0076] When the adjusting member 140 is in the first state, the first driving wheel group 121 and the second driving wheel group 122 rotate synchronously and in the same direction. At this time, the output power of the driving member 110 can drive the rotation of the first active sprocket 1211, and drive the first driven sprocket 1212 to rotate through the driving chain 130, so that the disengagement device 30 on the driving chain 130 moves. When the adjusting member 140 is in the first state (such as the clutch is in the engaged state), the first active sprocket 1211 drives the second active sprocket 1221 to rotate synchronously and in the same direction, and drives the second driven sprocket 1222 to rotate through the driving chain 130, so that the clamping device 20 on the driving chain 130 moves. In this way, the clamping device 20 and the disengagement device 30 can be moved synchronously.

[0077] When the adjusting member 140 is in the second state, one of the first driving wheel set 121 and the second driving wheel set 122 is stationary, and the other of the first driving wheel set 121 and the second driving wheel set 122 rotates. That is, when the adjusting member 140 is in the second state (such as the clutch is in the disconnected state), the driving member 110 outputs power to drive the first active sprocket 1211 to rotate, and drives the first driven sprocket 1212 to rotate through the driving chain 130, so that the disengagement device 30 on the driving chain 130 moves. However, the second active sprocket 1221 does not rotate, and the clamping device 20 cannot move. The movement of the disengagement device 30 will conflict with the clamping device 20, so that the clamping device 20 releases the pipe. This makes it easier for the pipe to disengage from the clamping device 20 and enter the equipment of the next process (such as a cooling tank or a straightening device).

[0078] By adjusting the state of the adjusting member 140, the first driving wheel set 121 and the second driving wheel set 122 can be stopped or rotated relative to each other, so that the clamping device 20 can clamp or release the pipe, thereby improving the automation degree of the pipe pulling equipment, reducing manual operations, and improving the production efficiency of the pipe.

[0079] Reference Figure 5 As shown, the clamping device 20 includes a base 210. The base 210 is disposed on the first driving wheel set 121 of the conveying device 10. The base 210 provides support for the clamping device 20 to ensure that it does not shake during operation.

[0080] The clamping device 20 includes a first clamping member 220 and a second clamping member 230. The first clamping member 220 is disposed on the mounting surface of the base 210, and the second direction T is a direction perpendicular to the mounting surface. The first clamping member 220 and the second clamping member 230 can be rotatably disposed on the base 210 around the second direction T, and the free ends of the first clamping member 220 and the second clamping member 230 can be close to or away from each other. The first clamping member 220 and the second clamping member 230 are at least used to clamp and fix or release the pipe, which can ensure that the pipe moves under the drive of the conveying device 10 and enters the next process, thereby improving the production efficiency of the pipe.

[0081] In some embodiments, the first clamping member 220 is configured as a first clamping plate 221, and the second clamping member 230 is configured as a second clamping plate 231. The first clamping plate 221 can be integrally configured with the first clamping member 220, and the second clamping plate 231 can be integrally configured with the second clamping member 230, so that the first clamping member 220 and the second clamping member 230 have a simpler structure and are easy to assemble. The first clamping plate 221 can also be installed on the first clamping member 220, and the second clamping plate 231 can also be installed on the second clamping member 230, so that the first clamping plate 221 and the second clamping plate 231 are easy to disassemble and repair.

[0082] The free end of the first clamping plate 221 is close to the second clamping plate 231 relative to the rotation axis of the first clamping plate 221, and the free end of the second clamping plate 231 is close to the first clamping plate 221 relative to the rotation axis of the second clamping plate 231. The first clamping plate 221 and the second clamping plate 231 can clamp the pipe in a symmetrical manner with respect to the pipe, thereby improving the stability and uniformity of the pipe clamping.

[0083] When the first clamping plate 221 and the second clamping plate 231 are not in contact with the pipe, a passage for the pipe to pass through is formed between the free end of the first clamping plate 221 and the free end of the second clamping plate 231 .

[0084] In some embodiments, when the first clamping plate 221 and the second clamping plate 231 are not in contact with the pipe, the first clamping plate 221 and the second clamping plate 231 are located in the same plane, and the pipe diameter is greater than the width of the channel. After the pipe comes out of the extruder, the pipe can contact the plane formed by the first clamping plate 221 and the second clamping plate 231 through the inertial impact force of the pipe or the thrust of the extruder and push the first clamping plate 221 and the second clamping plate 231 to rotate. The pipe enters between the free ends of the first clamping plate 221 and the second clamping plate 231, which can improve the degree of automation of clamping.

[0085] In some embodiments, when the first clamping plate 221 and the second clamping plate 231 are not in contact with the pipe, a certain angle is formed between the first clamping plate 221 and the second clamping plate 231, and the angle makes the channel formed between the free end of the first clamping plate 221 and the free end of the second clamping plate 231 larger than the diameter of the pipe. That is, the diameter of the pipe is smaller than the width of the channel. When the pipe passes through, the free ends of the first clamping member 220 and the second clamping member 230 are controlled to approach each other, so as to achieve fixed clamping of the pipe. In this way, the speed of pipe clamping can be accurately controlled, thereby improving the efficiency of pipe clamping.

[0086] In some embodiments, the clamping device 20 includes a control member 240. The control member 240 is movably disposed on the base 210, and the control member 240 is at least used to drive the first clamping member 220 and / or the second clamping member 230 to rotate relative to the base 210. The control member 240 can adjust the state of the first clamping member 220 and / or the second clamping member 230 as needed, so that the first clamping member 220 and the second clamping member 230 clamp or release the pipe. At this time, the first clamping member 220 and / or the second clamping member 230 controls the rotation state through the control member 240, so that the rotation of the first clamping member 220 and / or the second clamping member 230 is more precise.

[0087] For example, the control member 240 may be configured as a servo motor, and the servo motor outputs power to drive the first clamping member 220 and / or the second clamping member 230 to rotate, so as to clamp and release the pipe.

[0088] Specifically, the first clamping member 220 and / or the second clamping member 230 can be driven to rotate by the rotation of the control member 240, so that the free ends of the first clamping member 220 and the second clamping member 230 are close to each other, thereby clamping the pipe and preventing it from being separated or damaged during transportation. The distance between the free end of the first clamping member 220 and the free end of the second clamping member 230 can be adjusted to adapt to the shapes and sizes of different pipes, thereby meeting different clamping requirements. Such a configuration reduces manual operation and the time for pulling or transporting pipes, improves the pulling or transport efficiency of pipes, and further improves the production efficiency of pipes.

[0089] At the same time, the present application can also realize the release of the pipe by controlling the rotation of the first clamping member 220 and / or the second clamping member 230 so that the free ends of the first clamping member 220 and the second clamping member 230 are separated.

[0090] Specifically, when the adjusting member 140 is in the second state, the disengaging device 30 can be used to drive the control member 240 to rotate, so that the free end of the first clamping member 220 and the free end of the second clamping member 230 are separated, so that the pipe is separated from the free end of the first clamping member 220 and the free end of the second clamping member 230. The disengaging device 30 drives the control member 240 to rotate, so that the pipe is separated from the clamping device 20, thereby improving the automation degree of the pipe pulling equipment, reducing manual operations, and improving the production efficiency of the pipe.

[0091] Furthermore, the control member 240 can drive the first clamping member 220 and the second clamping member 230 to rotate synchronously, and the rotation direction of the first clamping member 220 is opposite to the rotation direction of the second clamping member 230. By rotating the first clamping member 220 and the second clamping member 230 in opposite directions, the angle between the two clamping members can be adjusted, thereby achieving clamping, fixing and releasing of the pipe. The synchronous rotation of the first clamping member 220 and the second clamping member 230 in opposite directions helps the pipe to withstand a more evenly distributed clamping force, thereby preventing the pipe from being deformed due to excessive local pressure.

[0092] Specifically, the clamping device 20 further includes a transmission assembly 250, and the synchronous rotation of the first clamping member 220 and the second clamping member 230 can be achieved by the transmission assembly 250. The transmission assembly 250 includes a first gear 251 and a second gear 252 that are meshed with each other. The first gear 251 and the second gear 252 can achieve synchronous reverse rotation. The first gear 251 and the rotating shaft of the first clamping member 220 are coaxially fixedly connected, and the second gear 252 and the rotating shaft of the second clamping member 230 are coaxially fixedly connected. The first gear 251 and the second gear 252 are meshed and rotated, thereby driving the first clamping member 220 and the second clamping member 230 to rotate relative to each other. The first gear 251 and the second gear 252 are relatively stable during the meshing and rotating process, which can reduce vibration and impact, improve the stability of the first clamping member 220 and the second clamping member 230 during the rotation process, and prevent the pipe from being locally deformed due to impact.

[0093] The control member 240 drives one or both of the first gear 251 and the second gear 252 to rotate relative to the base 210 around the second direction T, so as to clamp, fix and release the pipe through the action of the control member 240 .

[0094] For example, the control member 240 drives the first gear 251 and the second gear 252 to rotate relative to each other through the rack, so as to realize the control of the first gear 251 and the second gear 252.

[0095] Reference Figure 6As shown, in some embodiments, the first gear 251 has two first tooth edges 2511, and the first gear 251 is a "sector-shaped" gear, which can reduce the space occupied by the first gear 251 and make the clamping device 20 compact.

[0096] The center angle corresponding to the two first tooth edges 2511 is greater than or equal to 60 degrees, so that the first clamp 220 and the second clamp 230 can rotate at a larger angle, so that pipes of different sizes can be clamped. If the first clamp 220 and the second clamp 230 rotate at an angle that is too large, the time for clamping and fixing the pipe will be prolonged, resulting in reduced efficiency. Therefore, the center angle corresponding to the two first tooth edges 2511 is less than or equal to 120 degrees, which can limit the rotation angle of the first clamp 220 and the second clamp 230. For example, the center angle corresponding to the two first tooth edges 2511 can be 60 degrees, 70 degrees, 80 degrees, 90 degrees, 100 degrees, 110 degrees, 120 degrees, or a range consisting of any two of them. The center angle of the first tooth edge 2511 is set according to specific needs.

[0097] Similarly, the second gear 252 has two second tooth edges 2521, and the second gear 252 is a "sector-shaped" gear, which can reduce the space occupied by the second gear 252 and make the clamping device 20 compact.

[0098] The center angle corresponding to the two second tooth edges 2521 is greater than or equal to 60 degrees, so that the first clamp 220 and the second clamp 230 can rotate at a larger angle, so that pipes of different sizes can be clamped. If the first clamp 220 and the second clamp 230 rotate at an angle that is too large, the time for clamping and fixing the pipe will be prolonged, resulting in reduced efficiency. Therefore, the center angle corresponding to the two second tooth edges 2521 is less than or equal to 120 degrees, which can limit the angle of rotation of the first clamp 220 and the second clamp 230. For example, the center angle corresponding to the two second tooth edges 2521 can be 60 degrees, 70 degrees, 80 degrees, 90 degrees, 100 degrees, 110 degrees, 120 degrees, or a range consisting of any two of them. The center angle of the second tooth edge 2521 is set according to specific needs.

[0099] In some embodiments, the transmission assembly 250 further includes a connecting rod 253, and the second end of the connecting rod 253 is rotatably connected to the first gear 251. The control member 240 can rotate relative to the base 210 around the second direction T, and the first end of the connecting rod 253 is rotatably connected to the control member 240. Through the connection of the connecting rod 253, the rotation of the control member 240 can drive the first gear 251 to rotate. Such a configuration simplifies the structure of the transmission system, reduces the weight of the clamping device 20, and makes the clamping device 20 more compact.

[0100] In a plane perpendicular to the second direction T, the connecting line direction of the first end and the second end of the connecting rod 253 is parallel to the connecting line direction of the rotating shaft of the first gear 251 and the rotating shaft of the control member 240. The connecting line direction of the first end of the connecting rod 253 and the rotating shaft of the control member 240 is parallel to the connecting direction of the second end of the connecting rod 253 and the rotating shaft of the first gear 251. This arrangement can make the connecting rod 253 more stable when transmitting power, reduce vibration caused by structural instability, and avoid loose clamping of the pipe.

[0101] In some embodiments, the control member 240 includes a first corner connection portion 241, a second corner connection portion 242, and a third corner connection portion 243. The first corner connection portion 241, the second corner connection portion 242, and the third corner connection portion 243 are arranged around the rotation axis of the control member 240 and the three are fixedly connected. Without affecting its own function, the control member 240 can remove part of the material to reduce the weight of the control member 240, thereby reducing the weight of the clamping device 20, reducing the load of the drive chain 130, and extending the life of the drive chain 130.

[0102] The first corner connection part 241 of the control member 240 is connected to the first end of the connecting rod 253. The first corner connection part 241 can drive the first clamping member 220 and the second clamping member 230 to rotate relative to the base 210 through the connecting rod 253, so that the free end of the first clamping member 220 and the free end of the second clamping member 230 are close to or away from each other.

[0103] When the disengaging device 30 is working, the third angle connection part 243 cooperates with the disengaging device 30, so that the clamping device 20 can release the pipe. The striker 320 of the disengaging device 30 contacts the third angle connection part 243, which can drive the control member 240 to rotate, so that the free end of the first clamping member 220 and the free end of the second clamping member 230 are separated from each other. In this way, the pipe can be separated from the clamping device 20 and enter the equipment of the next process, thereby improving the automation of the pipe pulling equipment.

[0104] In some embodiments, the base 210 is provided with an elastic member (not shown in the figure), one end of the elastic member is fixed on the base 210, and the end of the elastic member away from the base 210 is connected to the second corner connection part 242 of the control member 240. The elastic member can drive the control member 240 to rotate through the second corner connection part 242, so that the first corner connection part 241 rotates relative to the base 210. The first corner connection part 241 can drive the free end of the first clamping member 220 and the free end of the second clamping member 230 to move closer to or away from each other through the connecting rod 253, so as to clamp or release the pipe.

[0105] In some embodiments, when the diameter of the pipe is larger than the channel, the pipe can be clamped by the elastic force of the elastic member. At this time, the control member 240 can be used as a force transmission part in the clamping device 20, and no power is required, which can reduce the energy consumption of the clamping device 20.

[0106] Specifically, after the pipe is discharged from the extruder, the impact force of the pipe can push the first clamping plate 221 to rotate counterclockwise and the second clamping plate 231 to rotate clockwise. The distance between the free end of the first clamping plate 221 and the free end of the second clamping plate 231 increases, and the pipe can enter between the first clamping member 220 and the second clamping member 230. The first clamping plate 221 drives the coaxial first gear 251 to rotate counterclockwise, and the second clamping plate 231 drives the coaxial second gear 252 to rotate clockwise. The counterclockwise rotation of the first gear 251 drives the connecting rod 253 to move toward the direction of the first gear 251, and the connecting rod 253 is connected to the first angle connection part 241 of the control member 240, so that the control member 240 rotates counterclockwise. The elastic member is connected to the second angle connection part 242 of the control member 240, and the counterclockwise rotation of the control member 240 causes the elastic member to be stretched, and the elastic potential energy of the elastic member increases.

[0107] After the impact force of the pipe disappears, the elastic member contracts and the elastic potential energy decreases. The elastic member acts on the second angle connection part 242 to generate elastic force, and drives the control member 240 to rotate clockwise through the second angle connection part 242. The control member 240 drives the connecting rod 253 to move in the direction away from the first gear 251 through the first angle connection part 241, and the first gear 251 rotates clockwise. Through the meshing of the first gear 251 and the second gear 252, the first clamping plate 221 rotates clockwise while the second clamping plate 231 rotates counterclockwise, thereby clamping the pipe. In other words, the elastic member can pull the control member 240 to prevent the control member 240 from rotating counterclockwise (after the impact of the pipe disappears), so that the first clamping member 220 and the second clamping member 230 generate a clamping force, so that the pipe is clamped and fixed.

[0108] It is easy to understand that the elastic member can apply a force to the first clamping member 220 and the second clamping member 230 through the control member 240, so that the free ends of the first clamping member 220 and the second clamping member 230 are close to each other. When the size or shape of the pipe changes, the elastic member can use its elastic force to make the first clamping member 220 and the second clamping member 230 adaptively adjust the clamping space to ensure stable clamping of the pipe. In addition, the elastic member can absorb and disperse external impact and vibration to protect other components of the clamping device 20 from damage.

[0109] For example, the elastic member can be set as a spring. The spring has a simple structure and low manufacturing and maintenance costs, which can reduce the manufacturing and maintenance costs of the clamping device 20.

[0110] The following is a detailed description of the use of the pipe pulling device, which is described by taking the case where the first clamping plate 221 and the second clamping plate 231 are not in contact with the pipe, the first clamping plate 221 and the second clamping plate 231 are located in the same plane, and the pipe diameter is greater than the width of the channel as an example.

[0111] The process of the pipe passing through the clamping device and traction of the pipe traction equipment: after the pipe is discharged from the extruder, it can touch the first clamping plate 221 and the second clamping plate 231 through the inertial impact force or the thrust of the extruder and pass through the free end of the first clamping plate 221 and the free end of the second clamping plate 231, pushing the first clamping plate 221 and the second clamping plate 231 to rotate relative to each other.

[0112] The first clamping plate 221 and the second clamping plate 231 rotate relative to each other, driving the coaxial first gear 251 and the second gear 252 to rotate relative to each other. The first gear 251 rotates counterclockwise to drive the second end of the connecting rod 253 connected thereto to move. The first end of the connecting rod 253 is rotatably connected to the control member 240. The first gear 251 rotates counterclockwise to drive the first angular connection part 241 of the control member 240 to rotate counterclockwise around its own rotation axis through the connecting rod 253. The second angular connection part 242 of the control member 240 rotates as the control member 240 rotates counterclockwise. The end of the elastic member facing away from the base 210 is connected to the second angular connection part 242 of the control member 240, and the elastic member is in a stretched state to generate elastic force.

[0113] The inertial impact force or the thrust of the extruder is a force generated instantaneously, and then this force disappears. The elastic force generated by the elastic member makes the elastic member have a tendency to restore the original state, thereby applying a pulling force to the second corner connection part 242 of the control member 240, so that the control member 240 rotates clockwise. The control member 240 rotates the first gear 251 clockwise through the connecting rod 253, and the first gear 251 is meshed with the second gear 252, so that the first clamping plate 221 and the second clamping plate 231 rotate to clamp the pipe.

[0114] After being clamped and fixed, the pipe can be towed and transported by the conveying device 10. The adjusting member 140 of the conveying device 10 is controlled by the console and adjusted to the first state. The driving member 110 outputs power to the first driving sprocket 1211, and the second driving sprocket 1221 is driven to rotate synchronously and in the same direction through the first driving sprocket 1211. The different driving chains 130 of the first driving sprocket 1211 and the second driving sprocket 1221 rotate, driving the clamping device 20 and the disengaging device 30 to move synchronously until they reach the next process equipment.

[0115] The process of the pipe reaching the next process equipment and detaching from the clamping device of the pipe pulling equipment:

[0116] The adjusting member 140 of the conveying device 10 is controlled by the console to be adjusted to the second state, the second active sprocket 1221 does not rotate, the clamping device 20 cannot move, and the first active sprocket 1211 continues to rotate, driving the disengaging device 30 to continue to move along the pipe conveying direction. The movement of the disengaging device 30 will conflict with the third triangle connection part 243 of the control member 240 of the clamping device 20, so that the control member 240 rotates counterclockwise, driving the first clamping plate 221 to rotate counterclockwise, and the second clamping plate 231 to rotate clockwise, so that the first clamping plate 221 and the second clamping plate 231 are separated from each other, and the pipe is released. After the pipe is released, the driving member 110 outputs the opposite power to the first active sprocket 1211, and the first active sprocket 1211 rotates in the opposite direction, driving the disengaging device 30 to move back. After the pipe is separated from the clamping device 20, it enters the equipment of the next process, and the first clamping plate 221 and the second clamping plate 231 return to the initial position (refer to the above description for the transmission process).

[0117] The following is an explanation of the application of pipe pulling equipment in the production process.

[0118] The initial state should be that the driving member 110 rotates, and under the transmission of the driving chain 130, the clamping device 20 and the conveying device 10 move to a fixed position near one end of the extruder water seal tank in the cooling tank, waiting for the extruder to discharge. At the same time, the cross-car also moves the hook to the gap between the rollers in the cooling tank, waiting for the clamping device 20 to discharge. The next working equipment after the cooling tank, the pre-straightening equipment, also moves to a fixed position near one end of the extruder water seal tank through the guide rail, waiting for the cross-car to discharge.

[0119] After the pipe is discharged from the water seal groove of the extruder, the pipe pushes open the clamping device 20 and is clamped under the pushing force of the extruder (the adjusting member 140 is in the first state).

[0120] After clamping the pipe, when the driving member 110 drives the driving chain 130 to move, the clamping device 20 and the conveying device 10 move toward the other end of the cooling tank. The pipe length can be input in advance according to the specifications of the pipe through the control console, and the clamping device 20 moves to the position corresponding to the length. The adjusting member 140 is adjusted to the second state, and the clamping device 20 stops.

[0121] At this time, the disengaging device 30 continues to move forward, and the striker 320 on the disengaging device pushes the third triangle connecting portion 243 of the control member 240, and the first clamping plate 221 and the second clamping plate 231 are rotated and opened through the connecting rod 253, and the pipe stops being pulled and is placed flat on the rollers at the bottom of the cooling tank;

[0122] The clamping device 20 continues to move and directly moves to the farthest fixed position of the cooling slot away from one end of the extruder. The driving member 110 stops rotating, the driving chain 130 stops rotating, and the clamping device 20 stops at the fixed position.

[0123] The hook moves into the cooling tank, the gap between the rollers passes through the crane, moves upward, hooks up the pipe on the rollers, and rises to a fixed position above the cooling tank. The pipe moves toward the pre-straightening equipment and is sent to the pre-straightening area.

[0124] The driving member 110 rotates to drive the driving chain 130, and the clamping device 20 moves to a fixed position near one end of the extruder water seal groove of the cooling trough, adjusts the adjusting member 140 to the first state, and waits for the extruder to discharge. At the same time, the over-crossing crane also moves the hook to the gap between the rollers in the cooling trough, waiting for the clamping device 20 to discharge. After the pipe is sent to the next working device of the pre-straightening equipment, the pre-straightening equipment also moves to a fixed position near one end of the extruder water seal groove through the guide rail, waiting for the over-crossing crane to discharge. At this point, each device has just returned to its initial state, completing the movement cycle of the pipe traction equipment, and waiting for the next extruder to discharge.

[0125] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0126] In the description of the present application, it should be understood that the terms "including" and "having" and any variations thereof used herein are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0127] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense, for example, it can be a fixed connection, it can also be a detachable connection, or it can be integrated; it can be directly connected, or it can be indirectly connected through an intermediate medium, it can make the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In addition, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

[0128] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A pipe pulling device, characterized in that: It comprises a conveying device (10) and a clamping device (20); The conveying device (10) is at least used to drive the clamping device (20) to move along a first direction; The clamping device (20) comprises a base (210), a first clamping member (220), a second clamping member (230) and a control member (240); the base (210) is arranged on the conveying device (10); The first clamping member (220) and the second clamping member (230) are both rotatable around a second direction and are disposed on the base (210) to drive the free end of the first clamping member (220) and the free end of the second clamping member (230) to move closer to or farther away from each other. The first clamping member (220) and the second clamping member (230) are at least used to clamp and fix or release the pipe. The control member (240) is movably disposed on the base (210), and the control member (240) is at least used to drive the first clamping member (220) and / or the second clamping member (230) to rotate relative to the base (210); The first direction is the pipe pulling direction; the first clamping member (220) and the second clamping member (230) are arranged on the installation surface of the base (210), and the second direction is a direction perpendicular to the installation surface.

2. The pipe pulling equipment according to claim 1, characterized in that: The control member (240) can drive the first clamping member (220) and the second clamping member (230) to rotate synchronously, and the rotation direction of the first clamping member (220) is opposite to the rotation direction of the second clamping member (230).

3. The pipe pulling equipment according to claim 2, characterized in that: The clamping device (20) further comprises a transmission assembly (250), wherein the transmission assembly (250) comprises a first gear (251) and a second gear (252) meshing with each other; The first gear (251) and the rotating shaft of the first clamping member (220) are coaxially fixedly connected, and the second gear (252) and the rotating shaft of the second clamping member (230) are coaxially fixedly connected; the control member (240) drives at least one of the first gear (251) and the second gear (252) to rotate relative to the base (210) around the second direction.

4. The pipe pulling device according to claim 3, characterized in that: The control member (240) can rotate relative to the base (210) around the second direction; The transmission assembly (250) further comprises a connecting rod (253); the control member (240) further comprises a first angular connection portion (241); the first angular connection portion (241) is rotatably arranged around a rotation axis of the control member (240); a first end of the connecting rod (253) is rotatably connected to the first angular connection portion (241); and a second end of the connecting rod (253) is rotatably connected to the first gear (251); In a plane perpendicular to the second direction, the direction of a line connecting the first end and the second end of the connecting rod (253) is parallel to the direction of a line connecting the rotation axis of the first gear (251) and the rotation axis of the control member (240); In a plane perpendicular to the second direction, the direction of a line connecting the first end of the connecting rod (253) and the rotation axis of the control member (240) is parallel to the direction of a line connecting the second end of the connecting rod (253) and the rotation axis of the first gear (251).

5. The pipe pulling equipment according to claim 3, characterized in that: The first gear (251) has a first tooth edge (2511), and a central angle corresponding to the first tooth edge (2511) is greater than or equal to 60 degrees and less than or equal to 120 degrees; The second gear (252) has a second tooth edge (2521), and the central angle corresponding to the second tooth edge (2521) is greater than or equal to 60 degrees and less than or equal to 120 degrees.

6. The pipe pulling device according to claim 4, characterized in that: The first clamping member (220) is configured as a first clamping plate (221), and the second clamping member (230) is configured as a second clamping plate (231); The free end of the first clamping plate (221) is close to the second clamping plate (231) relative to the rotation axis of the first clamping plate (221), and the free end of the second clamping plate (231) is close to the first clamping plate (221) relative to the rotation axis of the second clamping plate (231); When the first clamping plate (221) and the second clamping plate (231) are not in contact with the pipe, a passage for the pipe to pass through is formed between the free end of the first clamping plate (221) and the free end of the second clamping plate (231).

7. The pipe pulling device according to claim 6, characterized in that: The control member (240) further comprises a second corner connection portion (242), which is rotatably arranged around the rotation axis of the control member (240) and fixedly connected to the first corner connection portion (241); the base (210) is provided with an elastic member, and one end of the elastic member facing away from the base (210) is connected to the second corner connection portion (242) of the control member, and the elastic member can drive the control member (240) to rotate, thereby driving the first clamping plate (221) and the second clamping plate (231) to rotate, so that the free end of the first clamping plate (221) and the free end of the second clamping plate (231) are close to each other.

8. The pipe pulling device according to any one of claims 1 to 7, characterized in that: The conveying device (10) comprises a driving member (110), a driving wheel group (120) and a driving chain (130), wherein the driving chain (130) is wound on the driving wheel group (120), and the driving member (110) drives the driving chain (130) to move via the driving wheel group (120); The conveying device (10) comprises an adjusting member (140), and the output end of the driving member (110) drives the plurality of driving wheel groups (120) to rotate via the adjusting member (140); There are multiple driving wheel sets (120), and the multiple driving wheel sets (120) include a first driving wheel set (121) and a second driving wheel set (122); When the adjusting member (140) is in a first state, the first driving wheel set (121) and the second driving wheel set (122) rotate synchronously and in the same direction; When the adjusting member (140) is in the second state, one of the first driving wheel set (121) and the second driving wheel set (122) is stationary, and the other is rotating.

9. The pipe pulling device according to claim 8, characterized in that: The invention also comprises a disengagement device (30), wherein the disengagement device (30) and the base (210) are respectively arranged on different driving wheel groups (120); when the adjusting member (140) is in the second state, the disengagement device (30) can be used to drive the control member (240) to rotate so that the free end of the first clamping member (220) and the free end of the second clamping member (230) are separated from each other.

10. The pipe pulling device according to claim 9, characterized in that: The control member (240) comprises a third corner connection portion (243), wherein the third corner connection portion (243) is rotatably arranged around the rotation axis of the control member (240) and is fixedly connected to the first corner connection portion (241); When the disengagement device (30) is working, the disengagement device (30) drives the control member (240) to rotate through the third angle connection portion (243), thereby driving the first clamping member (220) and the second clamping member (230) to rotate, so that the free ends of the first clamping member (220) and the second clamping member (230) are separated to release the pipe.

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