Chain link bending device for tire protection chain

By introducing a support base, punch, die, moving mechanism, and feeding mechanism into the chain link bending device, and utilizing arc-shaped through grooves and baffles for limiting, the problem of metal rod blank position offset is solved, achieving high-precision chain link bending and improving the assembly and use effect of tire protection chains.

CN224143430UActive Publication Date: 2026-04-21ZUNHUA POHANG PROTECTION CHAIN MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZUNHUA POHANG PROTECTION CHAIN MFG CO LTD
Filing Date
2025-04-11
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

During the bending process of the chain links, the metal rod blank is prone to positional displacement, making it difficult to guarantee bending accuracy and affecting the subsequent assembly of chain links as well as the adaptability and performance of the tire protection chain.

Method used

The device includes a support base, a punch, a die, a first moving mechanism, a bending head, a second moving mechanism, and a feeding mechanism. The metal bar blank is limited by an arc-shaped through groove and a baffle, and the metal bar is positioned and transported by the movement of the drive mechanism and the positioning base, ensuring its consistent position on the die surface.

Benefits of technology

This effectively prevents the metal rod blank from shifting position during the bending process, improves the bending accuracy of the chain links, and ensures the overall compatibility and performance of the chain links and tire protection chain.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of bending devices, one embodiment of the utility model provides a tire protection chain link bending device which comprises a supporting seat and further comprises a male die, a female die, a first moving mechanism, a bending head, a second moving mechanism and a feeding mechanism, the male die is fixedly arranged on the side wall of the supporting seat, the female die is arranged on one side of the male die, and the first moving mechanism is arranged on the side wall of the supporting seat. The first moving mechanism is arranged between the supporting base and the female die and used for adjusting the position of the female die, the bending heads are arranged on one side of the supporting base and located on the two sides of the male die, the second moving mechanism is arranged between the bending heads and used for adjusting the positions of the bending heads, and the feeding mechanism is arranged on the supporting base and used for feeding the bending heads. By means of the technical scheme, the technical problem that in the prior art, the bending precision is affected due to the fact that the position of the blank deviates in the bending process is solved.
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Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of bending device technology, and more specifically, to a tire protection chain link bending device. Background Technology

[0002] Tire protection chain links are the basic building blocks of tire protection chains. They are typically made of high-strength, wear-resistant materials such as high-quality alloy steel through processes such as bending, precision casting, and welding.

[0003] In the process of bending chain links, a metal rod blank is generally inserted into a bending machine for bending and forming. During use, the metal rod blank is inserted between a punch and a die, and the bending of the metal rod blank is achieved by the movement of the die. For example, the utility model patent with announcement number CN221602910U discloses a hardware bending device for hardware production, including a worktable. The bottom of the worktable is fixedly connected to four support legs, and the top of the worktable is fixedly connected to a hardware bending device housing. The hardware bending device housing contains a mold assembly and a wiping assembly. Both sides of the hardware bending device housing are fixedly connected to a water spray nozzle, and the top of the hardware bending device housing is fixedly connected to a stamping assembly.

[0004] During the movement of the metal bar blank on the die surface, the punch's compression of the metal bar blank can easily cause the punch to move, which can lead to positional deviation of the metal bar blank when it enters the bending station. This makes it difficult to guarantee the dimensional accuracy of the bent chain links, affecting the subsequent assembly of chain links and the overall adaptability and performance of the tire protection chain. Utility Model Content

[0005] To overcome the above-mentioned defects, the embodiments of this disclosure provide a tire protection chain link bending device, which solves the technical problem in the prior art where the blank shifts during the bending process, affecting the bending accuracy.

[0006] According to one aspect, at least one embodiment of this disclosure provides a tire protection chain link bending device, including a support base, a punch, a die, a first moving mechanism, a bending head, a second moving mechanism, and a feeding mechanism. The punch is fixedly disposed on the side wall of the support base, the die is disposed on one side of the punch, the first moving mechanism is disposed between the support base and the die for adjusting the position of the die, the bending head is disposed on one side of the support base and located on both sides of the punch, the second moving mechanism is disposed between the bending heads for adjusting the position of the bending heads, and the feeding mechanism is disposed on the support base for conveying blanks to the surface of the die.

[0007] Preferably, the first moving mechanism includes:

[0008] A first support frame is fixedly mounted on a support base, and a first movable block is slidably mounted inside the first support frame.

[0009] The first movable block is fixedly connected to the concave mold;

[0010] A first support frame is fixedly mounted on the side wall of the support base and located on one side of the first support frame. A first hydraulic rod is installed on the first support frame and is fixedly connected to the first movable block.

[0011] Furthermore, the second moving mechanism includes:

[0012] A second support frame is fixedly mounted on the support base, and a second movable block is slidably mounted inside the second support frame.

[0013] The bending head is fixedly mounted on the second moving block;

[0014] The second support frame is fixedly mounted on the support base and located on one side of the second support frame. A second hydraulic rod is installed on the second support frame and is fixedly connected to the second movable block.

[0015] Furthermore, the feeding mechanism includes:

[0016] The feed seat is fixedly mounted on the support base and located on one side of the punch, and the feed seat has a feed port;

[0017] The arc-shaped through groove is provided on the top sidewall of the die.

[0018] A drive mechanism is provided inside the feed seat to drive multiple blanks to be fed sequentially into the arc-shaped through groove.

[0019] Furthermore, it also includes a baffle plate, which is fixedly mounted on the support base and located on the side of the die away from the feed seat.

[0020] Based on the above solution, the drive mechanism includes:

[0021] The side wall of the feed inlet is provided with a plurality of positioning grooves, and a positioning seat is slidably disposed in the positioning groove;

[0022] The driving roller is provided with multiple driving grooves on the side wall of the positioning seat, and the driving roller is rotatably arranged in the driving grooves.

[0023] A third moving mechanism is disposed within the positioning slot and is used to drive the positioning seat to move.

[0024] Based on the above scheme, the third moving mechanism includes:

[0025] Adjustment blocks, two of the adjustment blocks are slidably disposed at the bottom of each positioning groove;

[0026] An adjusting rod is hinged between the adjusting block and the positioning seat;

[0027] A bidirectional screw, which is rotatably disposed in the positioning groove, and the bidirectional screw passes through the adjacent adjusting block through a threaded engagement;

[0028] A synchronous rotation mechanism is provided on the feed seat and is used to drive the multiple bidirectional screws to rotate synchronously.

[0029] Based on the above scheme, the synchronous rotation mechanism includes:

[0030] The first cavity is provided on one side of the plurality of positioning slots, and the feeding seat is provided with an annular first cavity.

[0031] A first gear is rotatably disposed in the first cavity on one side of the bidirectional screw, and the first gear is fixedly connected to the adjacent bidirectional screw.

[0032] A first toothed ring is rotatably disposed within the first cavity, and the first gear meshes with the first toothed ring;

[0033] A first motor is mounted on the feed seat and is fixedly connected to the adjacent first gear.

[0034] Based on the above scheme, a micro motor is mounted on the surface of one of the positioning seats, and the micro motor is fixedly connected to a drive roller near one end of the first cavity.

[0035] Based on the above scheme, the first gear is a high-precision gear.

[0036] The beneficial effects of the embodiments disclosed herein are as follows:

[0037] 1. In this disclosure, by setting the arc-shaped through groove and the baffle, after the metal rod blank is inserted into the arc-shaped through groove, the arc-shaped through groove can limit the position of the metal rod blank, thereby preventing the metal rod from shifting position during the bending process. At the same time, the baffle can further limit the position of the metal rod during the feeding process, thereby ensuring that the position of each metal rod on the die surface is consistent, thereby further ensuring the bending accuracy of the metal rod blank;

[0038] 2. In this disclosure, by setting up a feeding mechanism, after multiple metal rods are inserted into the feed inlet, the movement of multiple positioning seats can drive the drive roller to position the metal rods. At the same time, the rotation of the drive roller can drive the metal rods to move, thereby driving multiple metal rods to be fed into the arc-shaped through groove in sequence.

[0039] 3. In this disclosure, the arrangement of the punch, die, first moving mechanism, bending head, second moving mechanism and feeding mechanism facilitates the limiting of the metal bar blank by the arc-shaped through groove and the baffle, thereby preventing the metal bar blank from shifting position during the bending process, thus solving the technical problem in the prior art where the blank shifts position during the bending process and affects the bending accuracy. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0041] Figure 1 This is a schematic diagram of the structure of a tire protection chain link bending device in one embodiment of the present disclosure;

[0042] Figure 2 for Figure 1 A schematic diagram of the structure of a tire protection chain link bending device from another perspective in one embodiment;

[0043] Figure 3 for Figure 1 A schematic diagram of the structure of a tire protection chain link bending device in a bent state in one embodiment;

[0044] Figure 4 for Figure 1 A cross-sectional structural schematic diagram of the feeding mechanism in the embodiment;

[0045] In the diagram: 1. Support base; 2. Punch; 3. Die; 4. Bending head; 5. First support frame; 6. First moving block; 7. First support frame; 8. First hydraulic rod; 9. Second support frame; 10. Second moving block; 11. Second support frame; 12. Second hydraulic rod; 13. Feed seat; 14. Feed inlet; 15. Arc-shaped through slot; 16. Baffle; 17. Positioning slot; 18. Positioning seat; 19. Drive roller; 20. Adjusting block; 21. Adjusting rod; 22. Bidirectional screw; 23. First gear; 24. First gear ring; 25. First motor; 26. Micro motor. Detailed Implementation

[0046] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0047] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0048] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0049] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0050] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0051] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0052] like Figures 1-4 The diagram illustrates a tire protection chain link bending device according to an embodiment of the present disclosure. It includes a support base 1, a punch 2, a die 3, a first moving mechanism, a bending head 4, a second moving mechanism, and a feeding mechanism. The punch 2 is fixedly mounted on the side wall of the support base 1, and the die 3 is mounted on one side of the punch 2. The first moving mechanism is located between the support base 1 and the die 3 for adjusting the position of the die 3. The bending head 4 is located on one side of the support base 1 and on both sides of the punch 2. The second moving mechanism is located between the bending heads 4 for adjusting the position of the bending heads 4. The feeding mechanism is mounted on the support base 1 for conveying the blank to the surface of the die 3.

[0053] Reference Figures 1-3 The first moving mechanism includes a first support frame 5 and a first support bracket 7. The first support frame 5 is fixedly mounted on the support base 1. A first moving block 6 is slidably mounted inside the first support frame 5. The first moving block 6 is fixedly connected to the die 3. The first support bracket 7 is fixedly mounted on the side wall of the support base 1 and located on one side of the first support frame 5. A first hydraulic rod 8 is mounted on the first support bracket 7. The first hydraulic rod 8 is fixedly connected to the first moving block 6. Specifically, after the metal bar blank moves to the top side wall of the die 3, the operation of the first hydraulic rod 8 can drive the first moving block 6 and the die 3 to move, thereby achieving the bending of the metal bar blank through the cooperation of the die 3 and the punch 2.

[0054] Reference Figures 1-3The second moving mechanism includes a second support frame 9 and a second support frame 11. The second support frame 9 is fixedly mounted on the support base 1. A second moving block 10 is slidably mounted inside the second support frame 9. The bending head 4 is fixedly mounted on the second moving block 10. The second support frame 11 is fixedly mounted on the support base 1 and located on one side of the second support frame 9. A second hydraulic rod 12 is mounted on the second support frame 11. The second hydraulic rod 12 is fixedly connected to the second moving block 10. Specifically, after the metal rod blank is bent by the die 3 and the punch 2, the second moving block 10 and the bending head 4 can be moved by the operation of the second hydraulic rod 12. Thus, the metal rod blank is further bent by the extrusion of the bending head 4.

[0055] Reference Figures 1-4 The feeding mechanism includes a feeding seat 13, an arc-shaped through groove 15, and a driving mechanism. The feeding seat 13 is fixedly mounted on the support seat 1 and located on one side of the punch 2. The feeding seat 13 has a feeding port 14. The top side wall of the die 3 has an arc-shaped through groove 15. The driving mechanism is located inside the feeding seat 13 and is used to drive multiple blanks to feed into the arc-shaped through groove 15 in sequence. It also includes a baffle 16, which is fixedly mounted on the support seat 1 and located on the side of the die 3 away from the feeding seat 13. Specifically, after the metal rod blanks are inserted into the arc-shaped through groove 15, the arc-shaped through groove 15 can limit the position of the metal rod blanks, thereby preventing the metal rods from shifting position during bending. At the same time, the baffle 16 can further limit the position of the metal rods during feeding, thereby ensuring that the positions of each metal rod on the surface of the die 3 are consistent, thereby further ensuring the bending accuracy of the metal rod blanks.

[0056] Reference Figure 4The driving mechanism includes positioning grooves 17, driving rollers 19, and a third moving mechanism. Multiple positioning grooves 17 are formed on the side wall of the feed inlet 14. A positioning seat 18 is slidably disposed within each positioning groove 17. Multiple driving grooves are formed on the side wall of the positioning seat 18. A driving roller 19 is rotatably disposed within each driving groove. The third moving mechanism is disposed within the positioning groove 17 and is used to drive the positioning seat 18 to move. The third moving mechanism includes adjusting blocks 20, adjusting rods 21, a bidirectional screw 22, and a synchronous rotation mechanism. Two adjusting blocks 20 are slidably disposed at the bottom of each positioning groove 17. The adjusting rod 21 is hinged between the adjusting block 20 and the positioning seat 18. Between 8, a bidirectional screw 22 is rotatably mounted in the positioning groove 17. The bidirectional screw 22 passes through the adjacent adjusting block 20 via a threaded connection. A synchronous rotation mechanism is mounted on the feed seat 13 to drive multiple bidirectional screws 22 to rotate synchronously. The synchronous rotation mechanism includes a first cavity, a first gear 23, a first gear ring 24, and a first motor 25. The feed seat 13 has an annular first cavity on one side of the multiple positioning grooves 17. The first gear 23 is rotatably mounted in the first cavity on one side of the bidirectional screw 22. The first gear 23 is fixedly connected to the adjacent bidirectional screw 22. The first gear ring 24 is rotatably mounted on the first... Inside the cavity, the first gear 23 meshes with the first gear ring 24. The first motor 25 is mounted on the feed seat 13 and is fixedly connected to the adjacent first gear 23. A micro motor 26 is mounted on the surface of one of the positioning seats 18 and is fixedly connected to the drive roller 19 near one end of the first cavity. The first gear 23 is a high-precision gear. Specifically, after multiple metal rods are inserted into the feed inlet 14, the operation of the first motor 25 can drive the first gear 23 to rotate. At the same time, the meshing of the first gear 23 with the first gear ring 24 can drive multiple first gears 23 and multiple... The bidirectional screw 22 rotates, and through the threaded engagement between the bidirectional screw 22 and the adjusting block 20, it can drive the two adjusting blocks 20 in the same positioning groove 17 to move relative to each other. Then, the positioning seat 18 can be pushed by the adjusting rod 21, so that the drive roller 19 positions the metal rod blank. At the same time, the operator controls the micro motor 26 to work. The operation of the micro motor 26 can drive the drive roller 19 near the first cavity in the positioning seat 18 to rotate. Thus, the friction between the drive roller 19 and the metal rod blank can drive the metal rod blank to move and extend into the arc-shaped through groove 15 for feeding.

[0057] In this embodiment, during use, after the operator inserts multiple metal rods into the feed inlet 14, the operation of the first motor 25 drives the first gear 23 to rotate. Simultaneously, the meshing of the first gear 23 with the first gear ring 24 drives multiple first gears 23 and multiple bidirectional screws 22 to rotate. Furthermore, the threaded engagement of the bidirectional screws 22 with the adjusting block 20 causes relative movement between two adjusting blocks 20 within the same positioning groove 17. This allows the adjusting rod 21 to push the positioning seat 18, thereby positioning the metal rod blank by the drive roller 19. Simultaneously, the operator controls the micro motor 26, which drives the drive roller 19 near the first cavity within the positioning seat 18. The rotating roller 19 drives the metal billet to move and extend into the arc-shaped through groove 15 for feeding, through the friction between the roller 19 and the metal billet. After the metal billet extends into the arc-shaped through groove 15 and contacts the baffle 16, the operator controls the first hydraulic rod 8 to work. The operation of the first hydraulic rod 8 can drive the first moving block 6 and the die 3 to move, so that the metal billet can be bent by the cooperation of the die 3 and the punch 2. Then the operator controls the second hydraulic rod 12 to work, so that the operation of the second hydraulic rod 12 can drive the second moving block 10 and the bending head 4 to move, so that the metal billet is further bent by the extrusion of the bending head 4.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications or substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A tyre protection chain link bending device comprising a support seat (1), characterized in that, Also includes: Punch (2), the punch (2) is fixedly disposed on the side wall of the support base (1); A concave die (3) is disposed on one side of the convex die (2); A first moving mechanism is disposed between the support base (1) and the die (3) for adjusting the position of the die (3); Bending head (4), the bending head (4) is disposed on one side of the support base (1) and located on both sides of the punch (2); The second moving mechanism is disposed between the bending head (4) and the bending head (4) for adjusting the position of the bending head (4); The feeding mechanism is disposed on the support base (1) and is used to feed the blank to the surface of the die (3).

2. A tyre chain link bending device according to claim 1, wherein The first moving mechanism includes: A first support frame (5) is fixedly mounted on a support base (1), and a first moving block (6) is slidably mounted inside the first support frame (5). The first movable block (6) is fixedly connected to the die (3); The first support frame (7) is fixedly mounted on the side wall of the support base (1) and located on one side of the first support frame (5). The first hydraulic rod (8) is mounted on the first support frame (7) and is fixedly connected to the first moving block (6).

3. A tyre chain link bending device according to claim 2, wherein The second moving mechanism includes: The second support frame (9) is fixedly mounted on the support base (1), and a second moving block (10) is slidably mounted inside the second support frame (9). The bending head (4) is fixedly mounted on the second moving block (10); The second support frame (11) is fixedly mounted on the support base (1) and located on one side of the second support frame (9). The second support frame (11) is equipped with a second hydraulic rod (12), which is fixedly connected to the second moving block (10).

4. A tyre chain link bending device according to claim 3, wherein The feeding mechanism includes: Feed seat (13), the feed seat (13) is fixedly mounted on the support seat (1) and located on one side of the punch (2), and the feed seat (13) is provided with a feed port (14). Arc-shaped through groove (15), the top side wall of the die (3) is provided with the arc-shaped through groove (15); The driving mechanism is located in the feed seat (13) and is used to drive multiple blanks to be fed into the arc-shaped through groove (15) in sequence.

5. A tyre chain link bending device according to claim 4, wherein It also includes a baffle (16), which is fixedly mounted on the support base (1) and is located on the side of the die (3) away from the feed seat (13).

6. A tyre chain link bending device according to claim 5, wherein The drive mechanism includes: Positioning groove (17): The side wall of the feed inlet (14) is provided with multiple positioning grooves (17), and a positioning seat (18) is slidably arranged in the positioning groove (17). The driving roller (19) is provided with multiple driving grooves on the side wall of the positioning seat (18), and the driving roller (19) is rotatably arranged in the driving grooves. The third moving mechanism is disposed in the positioning groove (17) and is used to drive the positioning seat (18) to move.

7. A tyre chain link bending device according to claim 6, wherein The third moving mechanism includes: Adjustment blocks (20), two adjustment blocks (20) are slidably arranged at the bottom of each positioning groove (17); Adjusting rod (21), which is hinged between the adjusting block (20) and the positioning seat (18); A bidirectional screw (22) is rotatably disposed in the positioning groove (17), and the bidirectional screw (22) passes through the adjacent adjusting block (20) through a threaded engagement. A synchronous rotation mechanism is provided on the feed seat (13) for driving multiple bidirectional screws (22) to rotate synchronously.

8. A tyre chain link bending device according to claim 7, wherein The synchronous rotation mechanism includes: The first cavity is provided in an annular shape on one side of the plurality of positioning slots (17); The first gear (23) is rotatably disposed in the first cavity on one side of the bidirectional screw (22), and the first gear (23) is fixedly connected to the adjacent bidirectional screw (22); The first gear ring (24) is rotatably disposed in the first cavity, and the first gear (23) meshes with the first gear ring (24); The first motor (25) is mounted on the feed seat (13) and is fixedly connected to the adjacent first gear (23).

9. A tyre chain link bending device according to claim 8, wherein One of the positioning seats (18) is equipped with a micro motor (26), which is fixedly connected to a drive roller (19) near one end of the first cavity.

10. A tyre chain link bending device according to claim 9, wherein The first gear (23) is a high-precision gear.

Citation Information

Patent Citations

  • Hardware bending device for hardware production

    CN221602910U