Receiving and bending device and pipe machining equipment

Abstract

The utility model provides a material receiving and bending device and pipe machining equipment, the material receiving and bending device comprises a bending main machine and a guide structure, and the bending main machine is used for bending a pipe. The guiding structure is connected to the bending main machine and comprises a guiding driving structure and a guiding piece, the guiding piece is provided with a guiding hole, the guiding hole is arranged outside the pipe in a sleeving mode, the guiding piece is further provided with a notch, the notch is communicated with the guiding hole, and the size of the notch is larger than that of the pipe. And the guide driving mechanism drives the notch in the guide piece to move towards or away from the pipe, so that the pipe can enter and exit from the guide hole from the notch. According to the material receiving and bending device, friction of the outer wall of the pipe in the transportation process can be reduced, so that abrasion of the outer wall of the pipe is reduced, and the quality of the pipe is guaranteed. The pipe material machining equipment comprises the detection device, the zinc spraying device, the marking device, the material receiving and bending device and the like, the flaw detection precision can be improved, the situations of discharging winding and waste are reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of pipe processing technology, and in particular to a material receiving and bending device and pipe processing equipment. Background Technology

[0002] In refrigeration systems, heat exchangers are mostly made of metal. Currently, aluminum or copper are commonly used metals for heat exchangers and connecting pipes. Aluminum and copper are two common metals with relatively good thermal conductivity, and they hold promise for slowing down the performance degradation of air conditioning heat exchangers. As a crucial core component of refrigeration systems, the application of metal tubing in the refrigeration field is continuously expanding and deepening.

[0003] Currently, common processing steps for metal tubes in the industry include: (1) metal ingot extrusion, using a die to obtain metal tubes with large inner and outer diameters; (2) multi-pass stretching, to obtain metal tube blanks with dimensions close to the target size; (3) online annealing, to remove stress generated during drawing and improve processing performance; (4) internal thread forming, pressing internal threads onto the inner surface of the metal tube according to requirements; (5) online annealing, to remove stress generated during internal thread forming; and (6) rewinding, to perform flaw detection and inkjet marking on the metal tube, and to wind it into coils for easy storage and transportation. In addition, since aluminum tubes are more susceptible to corrosion than copper tubes, aluminum tube products with high corrosion resistance requirements also need to undergo zinc spraying treatment on the surface of the aluminum tube.

[0004] In the production and processing of metal tubes in related technologies, the internal thread forming and the steps before forming are generally referred to as the tube blank forming process. After the internal thread is formed, the metal tube cannot be directly used in the refrigeration system. It still needs to be finished. The process from online annealing to winding the metal tube into a coil mentioned above is collectively referred to as the finishing process.

[0005] In existing metal tube finishing processes, online annealing, zinc spraying, flaw detection, and rewinding are typically performed in multiple separate stages. (See...) Figure 11 As shown, existing metal tube finishing processes are dispersed into... Figure 11 The process shown in Figure a and the process shown in Figure b are decentralized processes that usually include many repetitive processes and devices, such as transmission, cleaning, straightening, length and speed measuring devices, etc. They also add multiple processes of material receiving, unloading, and hoisting between each process, which reduces on-site production efficiency.

[0006] Furthermore, after the produced aluminum tubes undergo corrosion-resistant treatment (zinc spraying), the surface roughness increases, making them prone to tangling during rapid unwinding and winding processes. This leads to scrapping of the tubes and reduces the yield of aluminum coils. Conversely, to ensure unwinding quality and reduce tangling and scrap, the unwinding and winding speeds must be significantly reduced, impacting production efficiency.

[0007] Furthermore, the second finishing process in the related art is performed after the first process, that is, the flaw detection device in the dispersion process equipment is located in the post-zinc spraying section, and the flaw detection is performed after the zinc layer is sprayed on the pipe material, the zinc layer on the surface of the pipe material affects the flaw detection result, and the flaw detection accuracy is reduced.

[0008] In addition, in the related process, before the metal pipe material is sprayed with ink and finally wound, the pipe material usually needs to be pre-bent by a pipe bending device, so that the pipe material can be wound subsequently. However, in the related art, after the pipe material penetrates into the guide structure, the pipe material is always arranged in the guide structure until all the pipe materials are wound. During the winding of the pipe material, the outer wall of the pipe material continuously contacts and rubs against the guide structure, so that the outer surface of the pipe wall of the pipe material is easily abraded or scratched. Especially for the aluminum pipe with a zinc spraying surface, the zinc layer is easily detached during winding of the aluminum pipe, which affects the corrosion resistance of the surface of the aluminum pipe and reduces the quality of the aluminum pipe. In addition, the guide structure is also abraded due to frequent friction, and needs to be replaced frequently, which easily causes waste of resources of tooling molds. Utility model content

[0009] The present application provides a pipe material collecting and bending device and a pipe material processing equipment, which can reduce the friction of the outer wall of the pipe material during transportation, thereby reducing the abrasion or scratching of the outer wall of the pipe material and ensuring the quality of the pipe material.

[0010] The first aspect of the present application provides a pipe material collecting and bending device, which comprises a bending main machine and a guide structure, the bending main machine being used for bending a pipe material; the guide structure is connected to the bending main machine, the guide structure comprises a guide driving structure and a guide piece connected to the guide driving structure, the guide piece is provided with a guide hole, the guide hole is sleeved on the outer wall of the pipe material, the guide piece is further provided with a notch, the notch is communicated with the guide hole, the size of the notch is greater than the size of the pipe material, and the guide driving mechanism drives the notch on the guide piece to move towards or away from the pipe material, so that the pipe material can enter or exit the guide hole through the notch.

[0011] According to the pipe material collecting and bending device provided by the first aspect of the present application, the pipe material can be arranged in the guide hole by arranging the guide hole on the guide piece of the guide structure, the guide hole is used for guiding the transportation of the pipe material and limiting the position of the pipe material, and the pipe material is prevented from swinging greatly in the initial bending period. When the pipe material is transported stably, the guide driving structure can also drive the guide piece to move, so that the notch of the guide piece moves towards the pipe material, until the pipe material passes through the notch and is moved out of the guide piece, thereby reducing the friction between the outer wall of the pipe material and the guide piece, and further reducing the abrasion of the outer wall of the pipe material. At the same time, the abrasion of the guide piece is also reduced, and the guide piece does not need to be replaced frequently, thereby saving tooling molds.

[0012] In a possible implementation, the guide driving structure is a pneumatic cylinder or a hydraulic cylinder, and an output end of the guide driving structure is connected to the guide member, and the guide structure further comprises a connecting member, and the guide driving structure is connected to the bending main machine through the connecting member.

[0013] In a possible implementation, the guide member comprises a guide body, the guide hole is formed through the guide body, and the gap is formed through the guide body along the opening direction of the guide hole.

[0014] The guide hole of the present application can have various shapes to enable the pipe material to pass through. In a possible implementation, the guide hole is a circular hole or a square hole, and the size of the guide hole is slightly larger than the radial size of the pipe material.

[0015] The guide hole of the present application is preferably a circular hole or a square hole. The size of the guide hole is set to be slightly larger than the radial size of the pipe material, so that a small gap is maintained between the inner wall of the guide hole and the pipe material, which not only guides the transportation of the pipe material, but also well limits the position of the pipe material, prevents the pipe material from swinging greatly in the initial bending period, and thus enables the pipe material to remain stable during transportation.

[0016] In a possible implementation, the guide body is further provided with a guide groove, the guide groove is communicated with the guide hole, and the size of the guide groove gradually increases from the end of the guide groove communicated with the guide hole to the end of the guide groove away from the guide hole.

[0017] In a possible implementation, the guide structure is provided with two guide driving structures, the two guide driving structures are arranged on the same side of the guide body, the gap is formed at the end of the guide body away from the end connected with the guide driving structure, or the gap is formed at the end of the guide body facing the guide driving structure, and the gap is located between the two guide driving structures.

[0018] In a possible implementation, the cross section of the gap can have various shapes, and is preferably a sector or a square.

[0019] In a possible implementation, the guide member comprises a plurality of guide subparts, the plurality of guide subparts are sequentially connected in a head-to-tail manner, two adjacent guide subparts are detachably connected, the guide subparts located at the head end and the tail end are arranged in a spaced manner, and the gap is formed between the guide subparts.

[0020] In a possible implementation, the guide subpart is a sector ring structure, the guide subpart is provided with a connecting groove and a connecting block at two ends in the bending direction of the guide subpart respectively, and two adjacent guide subparts are connected through the connecting block and the connecting groove in a matched manner.

[0021] In a possible implementation, the inner diameter and the outer diameter of each guiding sub-portion are equal, the connecting block is arranged to be curved along the bending direction of the guiding sub-portion, the connecting groove is an arc-shaped groove, the connecting groove is curved along the bending direction of the guiding sub-portion, and the curvature of the connecting groove is equal to the curvature of the connecting block.

[0022] The second aspect of the present application provides a pipe material processing device, which comprises, in sequence, a pretreatment device, a detection device, a zinc spraying device, a marking device, the above-mentioned material collecting and bending device, and a winding device. The pipe material is processed by the pretreatment device, the detection device, the zinc spraying device, the marking device, and the material collecting and bending device in sequence, and is then wound on the winding device.

[0023] According to the pipe material processing device provided by the present application, the pretreatment device, the detection device, the zinc spraying device, the marking device, the material collecting and bending device, and the winding device are integrated together to form an overall processing device, so that the structure of the entire pipe material processing device is more compact, the process of multiple material collecting and releasing of the pipe material can be reduced, and the problems of surface wear and tear and pipe material winding caused by too many material collecting and releasing links can be solved. Not only is the structure of the equipment and the processing steps simplified, but also the efficiency of processing the pipe material is increased, and the quality of the finished pipe material is improved.

[0024] Moreover, since the detection device of the present application is arranged before the zinc spraying device, that is, the detection process precedes the zinc spraying process, the surface of the pipe material is subjected to a flaw detection operation before the zinc spraying, so that the detection effect of the flaw detection device on the surface of the pipe material is not affected by the zinc layer after the zinc spraying, and the accuracy of the flaw detection is improved.

[0025] In a possible implementation, the winding device comprises a winding frame, a lifting structure, and a rotating structure. The lifting structure is connected to the winding frame, and the rotating structure is connected to the lifting structure. The lifting structure is used to drive the rotating structure to move back and forth along a straight line. The rotating structure comprises a rotating driving structure and a rotating disc. The rotating driving structure is used to drive the rotating disc to rotate. The rotation axis of the rotating disc is parallel to the moving direction of the rotating structure. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description can also be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0027] Figure 1A structural schematic diagram of a collecting and bending device according to some embodiments provided by the present application is shown.

[0028] Figure 2 A structural schematic diagram of a guiding structure according to some embodiments provided by the present application is shown.

[0029] Figure 3 A structural schematic diagram of a pipe material disengaging from a guiding structure according to some embodiments provided by the present application is shown.

[0030] Figure 4 A structural schematic diagram of a pipe material located in a guiding hole of a guiding structure according to some embodiments provided by the present application is shown.

[0031] Figure 5 A sectional view of a guiding structure according to some embodiments provided by the present application is shown.

[0032] Figure 6 Another sectional view of a guiding structure according to some embodiments provided by the present application is shown.

[0033] Figure 7 An exploded view of a guiding member according to some embodiments provided by the present application is shown.

[0034] Figure 8 A structural schematic diagram of a guiding sub-portion according to some embodiments provided by the present application is shown.

[0035] Figure 9 A structural schematic diagram of a pipe material processing device according to some embodiments provided by the present application is shown.

[0036] Figure 10 A structural schematic diagram of a winding device according to some embodiments provided by the present application is shown.

[0037] Figure 11 A process flow chart of processing a pipe material by using a pipe material processing device in the related art is shown.

[0038] Reference signs:

[0039] 10, bending main machine; 11, support; 12, driving member; 13, rolling member;

[0040] 20, guiding structure; 21, guiding driving structure; 22, connecting member; 23, guiding member; 231, guiding body; 232, guiding hole; 233, notch; 2331, first end surface; 2332, second end surface; 234, guiding groove; 235, guiding sub-portion; 2351, connecting groove; 2352, connecting block; 100, feeding device; 101, swing arm device; 200, pretreatment device; 201, straightening device; 202, cleaning device;

[0041] 300, detection device; 301, detection device; 302, measuring device; 400, zinc spraying device;

[0042] 401, heating chamber; 402, zinc spraying chamber; 403, cooling chamber; 500, traction device; 600, marking device; 700, drying device; 800, material collecting and bending device; 900, winding device; 901, winding frame; 902, lifting structure; 903, rotating structure; 9031, rotating driving structure; 9032, rotating disc. DETAILED DESCRIPTION

[0043] To make the objectives, technical solutions, and superiorities of the embodiments of the present application clearer, the following will be combined with the accompanying drawings for the embodiments of the present application to make a clear and complete description of the technical solutions in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0044] Referring to Figure 1 As shown in the drawings, the embodiments of the present application provide a material collecting and bending device 800, which can be used in a pipe material processing equipment. After the pipe material is manufactured, it needs to be finished, such as cleaning the surface of the pipe material and spraying a protective layer on the surface of the pipe material, etc. After the surface of the pipe material is finished, the processed pipe material needs to be wound and stored. Generally, the pipe material needs to be pre-bent before being wound to facilitate the winding of the pipe material. The material collecting and bending device 800 of the present application can pre-bend the pipe material before being wound.

[0045] The material collecting and bending device 800 of the present application comprises a bending main machine 10 and a guide structure 20. The bending main machine 10 is the main structure of the material collecting and bending device 800, which is mainly used for bending the pipe material. The bending main machine 10 of the present application mainly comprises a support 11, a driving member 12, and a rolling member 13. The rolling member 13 can be a roller structure. The rolling member 13 is rotationally connected to the support 11. The driving member 12 can be a driving motor. The output shaft of the driving member 12 is directly or indirectly connected to the rolling member 13, which is used for driving the rolling member 13 to rotate.

[0046] It should be noted that the rolling member 13 can be a roller structure. A plurality of rolling members 13 are arranged on the bending main machine 10. The plurality of rolling members 13 are arranged in pairs, and at least two groups of rolling members 13 are formed on the bending main machine 10. The two rolling members 13 in the same group are arranged at intervals, and the pipe material can pass through the gap between the two rolling members 13 in a group.

[0047] It is worth mentioning that in order to realize the bending of the pipe material, different groups of rolling members 13 can be arranged in a staggered manner. Specifically, the combination of the two rolling members 13 through which the pipe material is first threaded is defined as the first group of rolling members, and the combinations of the rolling members 13 through which the pipe material is sequentially threaded during subsequent pipe material transportation are respectively defined as the second group of rolling members, the third group of rolling members, and so on. The gap between the two rolling members 13 of the first group of rolling members is located on the transportation path of the pipe material, so that the pipe material can smoothly enter between the two rolling members 13. Subsequently, the pipe material gradually deviates from the transportation direction of the pipe material by sequentially passing through the gaps between the two rolling members 13 of the other groups of rolling members, such as being deviated in the first direction, or being deviated in the second direction. For the convenience of description, see Figures 2 to 5 As shown in FIG. 13, the X-axis represents the first direction, the Y-axis represents the second direction, and the Z-axis represents the third direction. The first direction, the second direction, and the third direction are perpendicular to each other.

[0048] The offset position between the two adjacent groups of rolling members is relatively small, so that the pipe material can still smoothly enter between the two rolling members 13. However, due to the deflection between the two groups of rolling members, the pipe material is bent in the deflection direction of the rolling members.

[0049] The guide structure 20 is connected to the bending main machine 10. The guide structure 20 is used to guide the pipe material to be conveyed in a predetermined direction, and the guide structure 20 can also limit the position of the pipe material to prevent large positional deviation of the pipe material during transportation, thereby affecting the winding of the pipe material.

[0050] Specifically, see Figures 2 to 5 As shown in FIG. 14, the guide structure 20 of the present application includes a guide driving structure 21 and a guide member 23 connected to the guide driving structure 21. The guide driving structure 21 can drive the guide member 23 to reciprocate in a predetermined direction, and the direction in which the guide driving structure 21 drives the guide member 23 to move is perpendicular to the conveying direction of the pipe material.

[0051] The conveying direction of the pipe material of the present application is parallel to the third direction. The direction in which the guide driving structure 21 drives the guide member 23 to reciprocate can be parallel to the first direction or parallel to the second direction. In the present application, the guide driving structure 21 is taken as an example to drive the guide member 23 to reciprocate in the first direction.

[0052] The guide member 23 is provided with a guide hole 232, and the guide hole 232 is sleeved on the outside of the pipe material. The guide hole 232 is used to limit the conveying direction of the pipe material to realize the conveying of the pipe material in a predetermined direction. The pipe material of the present application is conveyed in the third direction, and therefore the guide hole 232 is opened in the third direction.

[0053] The guide piece 23 is also provided with a gap 233 in the lifting direction of the guide piece 23, the gap 233 is communicated with the guide hole 232, and the size of the gap 233 is greater than the size of the pipe material. The guide hole 232 is a closed loop structure, and the gap 233 is used to communicate the guide hole 232 with the outside in the first direction or the second direction.

[0054] When the pipe material is bent by the pipe collecting and bending device 800, the pipe material has two states. The first state is when the pipe material is just bent by the pipe collecting and bending device 800, at this time and for a certain period of time, the pipe material is in an unstable state, and the pipe material is more prone to large swing. If the swing of the pipe material is not limited, the bending effect of the pipe material will be affected. The second state is when the pipe material is bent by the pipe collecting and bending device 800 for a certain period of time, the pipe material is transported stably and does not produce large swing. At this time, the pipe material does not need to be guided and limited by the guide structure 20.

[0055] The guide structure 20 of the present application is provided with the guide hole 232 on the guide piece 23, the pipe material can be arranged in the guide hole 232, the guide hole 232 is used to guide the transportation of the pipe material and limit the position of the pipe material, so as to prevent the pipe material from swinging greatly in the initial bending period. The guide piece 23 of the present application is also provided with the gap 233 communicated with the guide hole 232. When the pipe material is transported stably, the guide driving structure 21 can also drive the guide piece 23 to move, so that the gap 233 of the guide piece 23 moves towards the pipe material, until the pipe material passes through the gap 233 and moves out of the guide piece 23, thereby reducing the friction between the outer wall of the pipe material and the guide piece 23, and further reducing the abrasion or scratch of the outer wall of the pipe material, so as to ensure the quality of the pipe material.

[0056] In some possible implementation manners, the guide driving structure 21 is used to drive the guide piece 23 to move, so that the pipe material is located in the guide hole 232 of the guide piece 23, or the pipe material is separated from the limitation of the guide piece 23. The guide driving structure 21 of the present application is a linear lifting structure, which can be a direct driving structure, such as a linear driving motor, a pneumatic cylinder or a hydraulic cylinder, etc. When driving, the guide piece 23 is connected to the output end of the linear driving motor or the pneumatic cylinder or the hydraulic cylinder, and the guide piece 23 is driven to move by the output end of the guide driving structure 21. Alternatively, the guide driving structure 21 can also be a combination structure of the driving member 12 and the transmission member. For example, the driving member 12 can be a driving motor, the output end of the driving motor is a rotating shaft, and the transmission member is a screw nut structure. The screw rod is coaxially connected to the output shaft of the driving motor, and the screw nut is driven to move relative to the screw rod by driving the screw rod to rotate. The guide piece 23 is connected to the screw nut to realize the movement of the guide piece 23. The specific structure of the guide driving structure 21 is not limited in the present application, and the guide driving structure 21 is taken as a lifting pneumatic cylinder as an example for description in the present application.

[0057] The output end of the guide driving structure 21 is connected to the guide 23, so that the guide 23 can move with the output end of the guide driving structure 21. The guide structure 20 further comprises a connecting piece 22, which serves as a connecting seat of the guide driving structure 21, and the guide driving structure 21 can be connected to the bending main machine 10 through the connecting piece 22, for example, the connecting piece 22 can be connected to the bending main machine 10 through a clamping structure, a buckling structure or a screw, and the guide driving structure 21 can be connected to the connecting piece 22 through a screw or the like.

[0058] In some possible implementation manners, the guide 23 comprises a guide body 231, which can be connected to the output end of the guide driving structure 21, and the guide body 231 is provided with a guide hole 232 penetrating through the guide body 231 along the conveying direction of the pipe material.

[0059] The cross-sectional shape of the pipe material is generally circular, and the guide hole 232 of the present application can not only guide the conveying direction of the pipe material, but also limit the large swing of the pipe material. Therefore, the shape and size of the guide hole 232 of the present application do not need to be matched with the shape and size of the pipe material. In this way, the shape of the guide hole 232 can be set as a circular shape or a square shape, and the size of the guide hole 232 can be set as slightly larger than the radial size of the pipe material, so that a small gap is kept between the inner wall of the guide hole 232 and the pipe material, which not only prevents the outer wall of the pipe material from directly contacting the guide 23 to avoid the abrasion of the outer wall of the pipe material, but also limits the large swing of the pipe material. In the present application, the guide hole 232 is taken as a circular hole for illustration.

[0060] It should be noted that the notch 233 is used to communicate the guide hole 232 with the outside in the radial direction, so that the pipe material can enter or move out of the guide hole 232 from the notch 233. The opening direction of the notch 233 is the same as that of the guide hole 232, the notch 233 penetrates through the guide body 231 along the opening direction, and one end of the notch 233 in the moving direction of the guide 23 is communicated with the guide hole 232, and the other end is opened to the outer wall of the guide 23.

[0061] In some possible implementation manners, the size of the position where the notch 233 and the guide hole 232 are communicated is greater than or equal to the size of the pipe material, so that the pipe material can be guided out of the guide 23 from the position of the notch 233.

[0062] In the present application, the notch 233 is formed by cutting a part of the structure of the guide 23. When cutting the part of the structure of the guide 23, only two cutting positions need to be provided on the guide 23, and the part between the two cutting positions can be cut by cutting the part of the structure of the guide 23 towards the guide hole 232. After cutting the part of the structure of the guide 23, the first end surface 2331 and the second end surface 2332 are formed on the guide 23, the first end surface 2331 and the second end surface 2332 are parallel to the third direction, and the first end surface 2331 and the second end surface 2332 are arranged at intervals.

[0063] According to different cutting manners, the shape of the notch 233 can be determined. For example, when cutting the guide 23, the cutting surface can be perpendicular to the second direction, in this case, the first end surface 2331 and the second end surface 2332 are both perpendicular to the second direction, the first end surface 2331 and the second end surface 2332 are parallel, and the cross section of the notch 233 is square.

[0064] Alternatively, the two cutting surfaces can be arranged at intervals around the central axis of the guide hole 232, and the notch 233 formed between the first end surface 2331 and the second end surface 2332 after cutting is in the shape of a sector.

[0065] Of course, the notch 233 can also be composed of square and sector shapes by other cutting manners, or the notch 233 can be composed of other different shapes.

[0066] In the embodiment of the present application, the overall shape of the notch 233 is sector-shaped, so that the pipe blank can easily enter the guide hole 232 from the sector-shaped opening.

[0067] Reference should also be made to Figure 6As shown, in some possible implementation manners, the guide hole 232 needs to be arranged in a front direction during the pipe material conveying process, so that the pipe material can be successfully inserted into the guide hole 232. In order to make the pipe material more accurately inserted into the guide hole 232, the guide body 231 is further provided with a guide slot 234, which is arranged at an end of the guide body 231 facing the pipe material. The pipe material needs to pass through the guide slot 234 first before being inserted into the guide hole 232. The guide slot 234 is communicated with the guide hole 232, and the guide slot 234 can prevent the pipe material from being misaligned with the guide hole 232 due to a position deviation during the pipe material conveying process. The guide slot 234 is used to guide the pipe material to be accurately inserted into the guide hole 232. The guide slot 234 of the present application is in a flared structure, or the guide slot 234 is in a trumpet shape. The size of the end of the guide slot 234 communicated with the guide hole 232 to the end of the guide slot 234 away from the guide hole 232 gradually increases. When the pipe material is misaligned with the guide hole 232 during the pipe material conveying process, since the size of the end of the guide slot 234 away from the guide hole 232 is greater than the size of the guide hole 232, the pipe material can be aligned with the end of the guide slot 234 away from the guide hole 232, so that the pipe material can be inserted into the end of the guide slot 234 away from the guide hole 232. Then, during the pipe material conveying process, the pipe material can move along the slot wall of the guide slot 234, and the slot wall of the guide slot 234 can guide the pipe material to be inserted into the guide hole 232.

[0068] In some possible implementation manners, the guide driving structure 21 is a pneumatic cylinder, and an output end of the pneumatic cylinder is connected to the guide body 231, so as to drive the guide body 231 to move reciprocally along the first direction.

[0069] It should be noted that the number of the guide driving structures 21 is not limited, and the guide body 231 can be driven to ascend and descend by only one guide driving structure 21, or the guide body 231 can be driven to ascend and descend by a plurality of guide driving structures 21. In the present application, two guide driving structures 21 are arranged, and the two guide driving structures 21 are located at the same side of the guide body 231 and are spaced apart. The output ends of the two guide driving structures 21 are respectively connected to the two ends of the guide body 231 in the second direction, so that the guide body 231 can move more stably along the first direction.

[0070] The position of the notch 233 on the guide body 231 in this application needs to be set according to the moving direction of the guide body 231. If the guide body 231 moves along the first direction, the notch 233 needs to be opened at both ends of the guide body 231 along the first direction. If the guide body 231 moves along the second direction, the notch 233 needs to be opened at both ends of the guide body 231 along the second direction. In this application, the guide body 231 moves along the first direction, so the notch 233 is opened at both ends of the guide body 231 along the first direction. It can be opened at the end of the guide body 231 facing away from the guide drive structure 21. In this way, when the guide drive structure 21 drives the guide body 231 to descend, the tube can be fitted into the guide hole 232 through the notch 233. When the guide drive structure 21 drives the guide body 231 to rise, the tube can be moved out of the guide hole 232 through the notch 233. The notch 233 can also be opened at the end of the guide body 231 facing the guide drive structure 21, and the notch 233 needs to be located between the two guide drive structures 21. In this case, when the guide drive structure 21 drives the guide body 231 to rise, the tube can pass through the notch 233 and enter the guide hole 232. When the guide drive structure 21 drives the guide body 231 to descend, the tube passes through the notch 233 and moves out of the guide hole 232.

[0071] It should be noted that the rising and falling mentioned above refer to the movement of the guide body 231 relative to the guide drive structure 21. When the guide body 231 moves toward the guide drive structure 21, the movement of the guide body 231 is an upward movement, and when the guide body 231 moves away from the guide drive structure 21, the movement of the guide body 231 is a downward movement.

[0072] See Figure 7 and Figure 8 As shown, in some feasible methods, the radial dimensions of pipes of different specifications are different. Therefore, when pipes of different sizes enter the guide hole 232, a notch 233 of different sizes is required to match the corresponding pipe size. If the size of the notch 233 is smaller than the size of the pipe, the pipe cannot successfully enter the guide hole 232.

[0073] Based on this, the guide 23 of this application can be configured to adaptably modify the size of the notch 233. Specifically, the guide 23 of this application includes a plurality of guide sub-parts 235, which can be connected end to end around an axis parallel to a third direction. The guide sub-parts 235 located at the beginning and end are spaced apart, and the gap forms a notch 233. Adjacent guide sub-parts 235 can be detachably connected.

[0074] In this way, the number of the guide sub-parts 235 can be set according to the size of the pipe material, so as to determine the spacing between the guide sub-parts 235 at the two ends. For example, when the radial size of the pipe material is small, the number of the guide sub-parts 235 can be set to be relatively large, so that the spacing between the guide sub-parts 235 at the two ends is relatively small and the pipe material can pass through; when the radial size of the pipe material is large, the number of the guide sub-parts 235 can be reduced, so that the spacing between the guide sub-parts 235 at the two ends is relatively large, and in this way, the size of the gap 233 can be increased, so that the pipe material with a large size can pass through smoothly.

[0075] Therefore, the present application sets a plurality of guide sub-parts 235, the guide sub-parts 235 are connected end to end around the axis parallel to the third direction, and the adjacent two guide sub-parts 235 are detachably arranged. When dealing with pipe materials of different sizes, the guide sub-parts 235 at the two ends can be selectively removed or new guide sub-parts 235 can be continuously installed at the guide sub-parts 235 at the two ends. The number of removal and installation is determined according to the size of the pipe material. After the guide sub-parts 235 at the two ends are removed or new guide sub-parts 235 are installed, the spacing between the new guide sub-parts 235 at the two ends can be changed, so as to increase or decrease the size of the gap 233. In this way, it is not only convenient to modify the size of the gap 233 for pipe materials of different sizes to adapt to more sizes of pipe materials, but also when some guide sub-parts 235 are worn or damaged, the damaged guide sub-parts 235 can be replaced or repaired, without replacing the entire guide 23, so as to reduce resource waste and save cost.

[0076] In some possible implementations, the plurality of guide sub-parts 235 are arranged to form the guide hole 232, so that the guide 23 has an annular structure with a gap 233. The shape of the guide sub-parts 235 is not limited, but the end surface of the guide sub-parts 235 for forming the inner ring of the guide 23 needs to be determined according to the shape of the guide hole 232. For example, if the guide hole 232 is circular, the end surface of the guide sub-parts 235 for forming the inner ring of the guide 23 needs to be arc-shaped. If the guide hole 232 is polygonal and the end surface for forming the guide hole 232 is straight, the end surface of the guide sub-parts 235 for forming the inner ring of the guide 23 needs to be straight.

[0077] In the embodiment of the present application, the guide hole 232 is circular, and the guide 23 has a circular ring structure. The guide sub-parts 235 of the present application have a fan ring structure, and the outer ring of each guide sub-part 235 has an equal radial size, and the inner ring of each guide sub-part 235 also has an equal radial size. The two ends of the guide sub-part 235 in the bending direction are respectively provided with a connecting groove 2351 and a connecting block 2352, and the adjacent two guide sub-parts 235 are connected through the connecting block 2352 inserted into the connecting groove 2351.

[0078] It should be noted that the connecting block 2352 can be embedded in the connecting groove 2351 to realize the connection of the two adjacent guide sub-parts 235. In order to prevent the two guide sub-parts 235 from being separated when connected, the connecting block 2352 can be curved along the bending direction of the guide sub-part 235. Correspondingly, the connecting groove 2351 on the guide sub-part 235 is also curved along the bending direction of the guide sub-part 235, and the bending curvature of the connecting block 2352 is equal to the connecting curvature of the connecting groove 2351. By setting the connecting block 2352 and the connecting groove 2351 to be arc-shaped, when the connecting block 2352 is inserted into the connecting groove 2351, the connecting block 2352 is not easy to separate from the connecting groove 2351 along the bending direction.

[0079] Alternatively, the shape of the connecting block 2352 can be set, and the size of one end of the connecting block 2352 close to the guide sub-part 235 is set to be smaller than the size of the other end away from the guide sub-part 235. Correspondingly, the size of the bottom of the connecting groove 2351 is set to be larger than the size of the opening of the connecting groove 2351.

[0080] Through the above setting, the two connected guide sub-parts 235 can be prevented from being separated in the bending arrangement direction. The connecting block 2352 and the connecting groove 2351 can also be set to be a tight fit, such as setting the size of the connecting block 2352 to be slightly larger than the size of the connecting groove 2351, so that the connecting block 2352 and the connecting groove 2351 are in interference fit, so that the connection between the connecting block 2352 and the connecting groove 2351 is more stable.

[0081] The connecting block 2352 of the present application extends in a direction perpendicular to the bending direction of the guide sub-part 235. In the present application, the guide sub-part 235 bends around a direction parallel to the third direction, that is, the connecting block 2352 of the present application extends along the third direction. Similarly, the connecting groove 2351 also extends along the third direction. The connecting groove 2351 can penetrate through the opposite ends of the guide sub-part 235. The connecting groove 2351 can also not penetrate through the guide sub-part 235, that is, the connecting groove 2351 is opened along the third direction from one end of the guide sub-part 235 in the third direction, and the guide sub-part 235 has a thin wall structure in the opening direction of the connecting groove 2351. When the connecting block 2352 is inserted into the connecting groove 2351, a screw structure can be provided in the thin wall structure and screwed to the connecting block 2352 to fixedly connect the connecting block 2352 and the guide sub-part 235.

[0082] It is worth mentioning that in the present application, the guide sub-parts 235 are connected to form the guide 23, and the guide sub-parts 235 are fan ring structures. The guide sub-parts 235 can be completely consistent, or some parameters between the guide sub-parts 235 can be different. For example, the guide sub-parts 235 are used to form a certain included angle between the two end faces of the connecting block 2352 and the connecting groove 2351. If the included angle is represented by a, the included angles a of the plurality of guide sub-parts 235 can be the same or different, and the angle a can be set to 30°, 45° or 60°, etc. according to the actual situation. Therefore, different sizes of notches 233 can be formed by combining different specifications of guide sub-parts 235.

[0083] Referring to Figure 9 and Figure 10 As shown in FIGS. 1 to 3, the present application also provides a pipe material processing equipment. The pipe material processing equipment is used for more fine processing of the pipe material after forming. In order to realize fine processing of the pipe material, the pipe material processing equipment comprises a pretreatment device 200, a detection device 300, a zinc spraying device 400, a marking device 600, the above-mentioned material collecting and bending device 800 and a winding device 900 which are sequentially arranged. The manufactured pipe material can be sequentially processed by the pretreatment device 200, the detection device 300, the zinc spraying device 400, the marking device 600 and the material collecting and bending device 800, and then wound on the winding device 900.

[0084] The pipe material processing equipment of the present application further comprises a pipe material feeding device 100 and a swing arm device 101. The pipe material feeding device 100 is used for providing the pipe material, and the swing arm device 101 is used for transferring the pipe material to the pretreatment device 200. Therefore, the pipe material feeding device 100 and the swing arm device 101 are used as a process before the pretreatment device 200 performs pretreatment on the pipe material, and are located at a previous station of the pretreatment device 200.

[0085] The pretreatment device 200 comprises a straightening device 201 and a cleaning device 202. The straightening device 201 is used for straightening the pipe material, so as to facilitate subsequent processing of the pipe material. The cleaning device 202 is mainly used for cleaning the surface of the pipe material, so as to ensure the cleanliness of the surface of the pipe material.

[0086] The detection device 300 comprises a flaw detection device 301 and a measuring device 302. The measuring device 302 is mainly used for measuring the conveying speed of the pipe material and the length of the pipe material. The flaw detection device 301 is mainly used for detecting whether the surface of the pipe material is flawed. The flaw detection device 301 can be detected by the magnetic induction method. Specifically, the flaw detection device 301 has a ring-shaped coil, the pipe material is arranged in the ring-shaped coil during conveying, and the flaw detection device 301 is further electrically connected with a control system. The control system can be a programmable logic controller (PLC). The pipe material in the application is generally a metal pipe such as an aluminum pipe or a copper pipe. The pipe material can generate an electric current in cooperation with the coil during conveying. The electric current generated by the coil is converted into an electric signal by the flaw detection device 301 and transmitted to the control system. When the surface of the pipe material is flawed, the generated electric current will be disturbed, and the generated electric signal will also be disturbed, so that whether the surface of the pipe material is flawed can be known.

[0087] The zinc spraying device 400 further comprises a heating chamber 401, a zinc spraying chamber 402 and a cooling chamber 403. The heating chamber 401 is located at the next station of the detection device 300, the zinc spraying chamber 402 is located between the heating chamber 401 and the cooling chamber 403.

[0088] In the embodiment of the application, the pipe material processing equipment further comprises a traction device 500. The traction device 500 is located between the zinc spraying device 400 and the marking device 600. The zinc spraying device 400 is used for zinc spraying treatment on the surface of the pipe material. The traction device 500 is used to provide traction at the middle position of the pipe material processing equipment to realize the conveying of the pipe material. The traction device 500 can continue to pull the pipe material to move to the marking device 600. The marking device 600 is mainly used for inkjet on the surface of the pipe material to mark the flaw detection area of the pipe material, so as to facilitate the quality inspection of the related area of the pipe material in the subsequent process.

[0089] It is worth mentioning that after the inkjet device, a drying device 700 can be further arranged. The drying device 700 is used for heating and drying treatment on the surface of the pipe material, so that the surface of the pipe material remains dry.

[0090] Therefore, taking the processed pipe material as an aluminum pipe as an example, the pipe material processing equipment of the application can process the aluminum pipe according to the following steps:

[0091] 1. After the aluminum pipe billet is drawn, the aluminum pipe billet is conveyed on the feeding device 100 to the straightening device 201 through the swing arm device 101. The aluminum pipe is straightened and the impurities such as oil stains on the surface of the aluminum pipe are removed through the straightening device 201 and the cleaning device 202, so that the subsequent zinc powder can be uniformly attached to the surface of the aluminum pipe. The aluminum pipe is continuously conveyed to the flaw detection device 301 and the measuring device 302 in sequence. The flaw detection device 301 is used to detect the defects on the surface of the aluminum pipe, and the measuring device 302 is used to measure the length and conveying speed of the aluminum pipe.

[0092] 2. After flaw detection and measurement of the aluminum tube, the aluminum tube is transported to the heating chamber 401. The heating chamber 401 heats the aluminum tube online. The heating temperature depends on the actual situation. For example, the aluminum tube can be heated to 600℃ to dry the surface of the aluminum tube and improve its internal stress state.

[0093] 3. After heating, the aluminum tube passes through the zinc spraying chamber 402 and is sprayed with molten zinc onto the surface of the aluminum tube by two symmetrical arc guns. Then, the aluminum tube coated with zinc powder is transported to the cooling chamber 403 (the cooling chamber 403 can be water-cooled) to cool and solidify the zinc powder on the surface of the aluminum tube and allow the surface to air dry.

[0094] 4. After zinc spraying, the aluminum tube is transported by the traction device 500, the flaw detection area is marked by the marking device 600, and the surface of the aluminum tube is kept dry by the drying device 700 for subsequent processes to perform quality inspection and judgment.

[0095] 5. The dried aluminum tube after inkjet marking enters the receiving and bending device 800 through the guide structure 20, and then enters the winding device 900 to be wound into a coil. Subsequently, it is packaged with transparent plastic film to complete the finishing process.

[0096] In related technologies, the finishing process of tubes is relatively complex, with many repetitive steps in feeding and unfeeding the tubes, which is not conducive to the processing of the tubes. The following uses the processing of aluminum tubes as an example to illustrate the common processing flow of aluminum tubes, which includes: (1) extruding aluminum ingots to obtain aluminum tubes with large inner and outer diameters through a die; (2) multi-pass stretching to obtain aluminum tube blanks with dimensions close to the target size; (3) online annealing to remove the stress generated by the drawing and improve the processing performance; (4) internal thread forming to press internal threads on the inner surface of the aluminum tube according to customer requirements; (5) online annealing to remove the stress generated by the internal thread forming; (6) rewinding to perform flaw detection, inkjet marking, and winding into coils for easy storage and transportation. For aluminum tube products with high corrosion resistance requirements, zinc spraying is also required.

[0097] For ease of description, this application refers to the process from the formation of the internal thread to the winding of the aluminum tube into a coil as the finishing process. In existing finishing processes for aluminum tubes and other metal tubes, processes such as online annealing, zinc spraying, flaw detection, and rewinding are usually separated and completed in multiple stages.

[0098] like Figure 11 As shown, Figure 11The first process is shown in Figure (a), and the second process after the first process is shown in Figure (b). The related art aluminum pipe finishing process is a combination of the first process and the second process. The dispersed process flow usually includes many repeated processes and devices, such as transmission, cleaning, straightening, length measuring and speed measuring devices, and the like. Therefore, multiple material receiving, material releasing, hoisting and the like are added between the processes, which reduces the on-site production efficiency. Moreover, after the corrosion-resistant treatment (zinc spraying), the surface roughness of the aluminum pipe increases, and the pipe material is easily wound together during the rapid receiving and releasing process, which leads to the rejection of the pipe material and reduces the yield of the aluminum coil pipe.

[0099] The pipe material processing equipment of the present application integrates the pretreatment device 200, the detection device 300, the zinc spraying device 400, the marking device 600, the receiving and bending device 800 and the winding device 900 together to form an integrated processing equipment, which makes the structure of the entire pipe material processing equipment more compact and helps to solve the problems of pipe material surface wear and tear and pipe material winding caused by too many material receiving and releasing links. The present application not only simplifies the structure and processing steps of the processing equipment and increases the efficiency of processing pipe material, but also improves the quality of the finished pipe material.

[0100] Moreover, the detection device 300 of the present application is arranged before the zinc spraying device 400, that is, when the pipe material processing has a zinc spraying process, the detection process precedes the zinc spraying process. The surface of the pipe material is subjected to a flaw detection operation before the zinc spraying, which avoids the influence of the zinc spraying layer on the detection effect of the flaw detection device on the surface of the pipe material after the zinc spraying, and thus improves the accuracy of the flaw detection.

[0101] In some possible implementations, the winding device 900 of the present application includes a winding frame 901, a lifting structure 902 and a rotating structure 903. The lifting structure 902 is connected to the winding frame 901, and the rotating structure 903 is connected to the lifting structure 902. The lifting structure 902 can drive the rotating structure 903 to move back and forth in a direction. The lifting structure 902 can be a linear driving structure such as a pneumatic cylinder or a hydraulic cylinder. The rotating structure 903 is mainly used for winding the pipe material. The rotating structure 903 includes a rotating driving structure 9031 and a rotating disc 9032. The rotating driving structure 9031 can be a motor, and the output shaft of the motor is rotatably arranged. The rotating disc 9032 can be connected to the output shaft of the rotating driving structure 9031. The rotating driving structure 9031 can drive the rotating disc 9032 to rotate. The rotation axis direction of the rotating disc 9032 is parallel to the moving direction of the rotating structure 903.

[0102] It should be noted that when the aluminum pipe is wound, the rotation shaft of the rotating disc 9032 is taken as the axis to be wound radially, either from the position close to the rotation shaft of the rotating disc 9032 to be wound outwardly away from the rotation shaft of the rotating disc 9032, so that the wound aluminum pipe can form multiple layers of aluminum pipe in the direction of the rotation shaft of the rotating disc 9032, and each layer of aluminum pipe is wound from the position close to the rotation shaft of the rotating disc 9032 to be wound away from the rotation shaft in the direction perpendicular to the rotation shaft, that is, at the minimum radius of each layer of wound aluminum pipe, or gradually wound from the position away from the rotation shaft of the rotating disc 9032 to the rotation shaft, that is, at the maximum radius of each layer of wound aluminum pipe.

[0103] When the aluminum pipe is wound by the winding device 900 of the present application, the aluminum pipe can enter the bottommost part of the rotating disc 9032 (the bottommost part of the rotating disc 9032 is the lowest end in the moving direction of the rotating structure 903, and the bottommost part is close to one end of the rotating driving structure 9031 or close to the lifting structure 902), and the aluminum pipe is gradually wound from the maximum radius to the minimum radius. When the aluminum pipe is gradually wound to the minimum radius, the rotating structure 903 is driven by the lifting structure 902 to descend by a certain height in the direction of the rotation shaft of the rotating disc 9032, and the rotating driving structure 9031 continues to rotate the rotating disc 9032. Because the aluminum pipe is close to the rotation shaft of the rotating disc 9032 at this time, the aluminum pipe starts to be wound from the minimum radius position to the maximum radius position.

[0104] Therefore, when the aluminum pipe is wound from the maximum winding radius position to the minimum winding radius position, or when the aluminum pipe is wound from the minimum winding radius position to the maximum winding radius position, the aluminum pipe can be wound to form a layer of aluminum disc. By driving the rotating disc 9032 of the rotating structure 903 to ascend and descend in the direction of the rotation shaft by the lifting structure 902, the position of the aluminum pipe winding can be controlled, that is, when the aluminum pipe is wound to form a layer, the aluminum pipe can be controlled to be wound in the next layer to be wound. When the aluminum pipe is wound, after a layer is formed by winding from the maximum radius position to the minimum radius position, the next layer is formed by winding from the minimum radius position to the maximum radius position, and the winding is repeated to finally form a scattered disc.

[0105] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0106] In the description of the present application, it should be understood that the terms "comprising" and "having" and any variations thereof used in the embodiments of the present application are intended to cover the non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units need not be limited to those clearly listed steps or units, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0107] Unless otherwise clearly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or can be integrated; can be directly connected, or indirectly connected through an intermediate medium; can be connected inside two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0108] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A material collecting and bending device, characterized by The application relates to a pipe bending device. The pipe bending device comprises a bending main machine for pulling and bending a pipe, and a guide structure connected to the bending main machine. The guide structure comprises a guide driving structure and a guide piece connected to the guide driving structure. The guide piece is provided with a guide hole sleeved on the pipe, and is also provided with a gap.

2. The material collection and bending apparatus of claim 1, wherein, The guide driving structure is a pneumatic cylinder or a hydraulic cylinder.

3. The material collection bending apparatus of claim 2, wherein, The output end of the guide driving structure is connected to the guide piece.

4. The material collection and bending apparatus of claim 3, wherein, The guide structure further comprises a connecting piece.

5. The material collection and bending apparatus of claim 1, wherein, The guide piece comprises a guide body.

6. A bending apparatus according to any one of claims 1 to 5, wherein The guide hole penetrates through the guide body.

7. The material collection bending apparatus of claim 6, wherein, The gap penetrates through the guide body along the setting direction of the guide hole.

8. The material collection bending apparatus of claim 7, wherein, The guide body is further provided with a guide groove.

9. A tube material processing apparatus characterized by comprising: The guide groove is connected to the guide hole.

10. The tube material processing apparatus according to claim 9, wherein The size of the guide groove gradually increases from the end connected to the guide hole to the end away from the guide hole. The guide structure is provided with two guide driving structures. The gap is set on the end of the guide body away from the end connected to the guide driving structure, or is set on the end of the guide body towards the guide driving structure. The gap is located between the two guide driving structures. The guide piece comprises a plurality of guide sub-pieces. The guide sub-pieces are connected in sequence. The guide sub-pieces are detachably connected. The guide sub-pieces are spaced apart. The guide sub-pieces are in the form of a fan ring. The guide sub-pieces are provided with a connecting groove and a connecting block at two ends in the bending direction. The connecting groove and the connecting block are used for connecting the adjacent guide sub-pieces. The inner diameter and the outer diameter of each guide sub-piece are equal. The connecting block is bent along the bending direction of the guide sub-piece. The connecting groove is an arc-shaped groove. The connecting groove is bent along the bending direction of the guide sub-piece. The arc of the connecting groove is equal to the arc of the connecting block. The pipe bending device comprises a pretreatment device, a detection device, a zinc spraying device, a marking device, a pipe collecting and bending device, and a winding device. The pipe is processed by the pretreatment device, the detection device, the zinc spraying device, the marking device, and the pipe collecting and bending device in sequence, and is then wound on the winding device. The winding device comprises a winding frame, a lifting structure, and a rotating structure. The lifting structure is connected to the winding frame. The rotating structure is connected to the lifting structure. The lifting structure is used for driving the rotating structure to move along a straight line in a reciprocating manner. The rotating structure comprises a rotating driving structure and a rotating disc. The rotating driving structure is used for driving the rotating disc to rotate. The rotation axis of the rotating disc is parallel to the moving direction of the rotating structure.

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