Die for bending of a hoop
By introducing an upper mold unit, a lower mold base, and elastic components into the mold, the problem of difficult demolding after the clamping clamp is formed is solved, realizing automatic demolding and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI KELI HENGJIU INTELLIGENT SWITCH CO LTD
- Filing Date
- 2025-08-08
- Publication Date
- 2026-07-24
AI Technical Summary
Existing clamps are difficult to automatically demold after molding, which affects production efficiency.
Design a mold for bending a hoop, comprising an upper mold unit, a lower mold base, and an elastic element. The lower mold unit is rotatably connected to the lower mold base. After the hoop is formed, the elastic element drives the lower mold unit to flip and push out the hoop, thus preventing the hoop from sticking to the mold.
It enables automatic demolding of clamps, improving production and work efficiency.
Smart Images

Figure CN224542890U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of clamp processing mold technology, specifically relating to a mold for clamp bending. Background Technology
[0002] A clamp is a metal fastener used to secure pipes, cables, and other objects by tightening them. Its core function is to achieve a stable connection through a mechanical structure. The arc shape of the clamp is mainly determined by the mold. The design specifications and materials of the clamp pressing mold directly affect the quality of the clamp produced. Most existing clamps are semi-circular. The clamp pressing mold typically uses a lower mold and an upper mold corresponding to the arc. The upper and lower molds press against each other to bend the flat iron into the desired shape.
[0003] In the existing technology, both the upper and lower dies are fixedly installed on the press. After the clamp is extruded and formed by the upper and lower dies, the clamp sometimes sticks to the lower die. Operators need to manually demold the clamp and remove it, which affects the production speed, reduces work efficiency, and has poor practicality. Utility Model Content
[0004] This utility model provides a mold for bending clamps, which aims to solve the problem in the prior art that clamps sometimes cannot be automatically demolded during the production process, affecting production efficiency.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a mold for bending clamps, comprising: The upper die unit is detachably connected to the press, and the upper die unit has a downwardly extending arc-shaped protrusion; The lower die holder is mounted on the press and located below the upper die unit, and has an installation notch; The lower mold is provided in two parts, both of which are located in the mounting notch; each of the lower molds is rotatably connected to the lower mold base, and the two lower molds can be combined to form an arc-shaped notch that is adapted to the arc-shaped protrusion and for placing the clamp to be formed; An elastic element is disposed on the lower mold base and connected to each of the lower mold parts. It is used to drive the two lower mold parts to tilt and flip upward respectively after the clamp is formed, so as to push out the formed clamp.
[0006] In one possible implementation, the mounting notch has hinged portions at both ends, and each hinged portion is located at the bottom of the mounting notch.
[0007] In one possible implementation, each of the lower mold members is provided with a pivot portion adapted to the corresponding hinge portion.
[0008] In one possible implementation, when the bottoms of the two lower mold parts are horizontally arranged, a gap is provided between the two lower mold parts, and a gap is provided between the side of the two lower mold parts near the lower mold base and the lower mold base.
[0009] In one possible implementation, the mold for bending the clamp further includes a plurality of limiting members, each of which is detachably connected to the lower mold base. Each of the limiting members is located on both sides of each of the lower mold members and abuts against each of the lower mold members. Each of the limiting members is located at the hinge portion of the lower mold base.
[0010] In one possible implementation, the lower mold base is provided with a plurality of insertion holes, each insertion hole being configured to correspond one-to-one with each of the limiting members, and each insertion hole being used for insertion into the corresponding limiting member.
[0011] In one possible implementation, the upper module unit includes: The upper mold base is connected to the press. The upper mold structure is detachably connected to the upper mold base, and the upper mold structure has the arc-shaped protrusion; Multiple locking components are provided to lock and fix the upper mold structure onto the upper mold base.
[0012] In one possible implementation, the upper mold structure includes: The mounting part has a snap-fit groove for snap-fit connection with the upper mold base. The mounting part has multiple mounting holes, and each mounting hole is correspondingly provided with each locking member. The extrusion part is located at the lower end of the mounting part and is integrally connected to the mounting part. The extrusion part includes the arc-shaped protrusion.
[0013] The beneficial effects of the mold for bending clamps provided by this utility model are as follows: Compared with the prior art, an upper mold unit and a lower mold base are set on the press. The upper mold unit has a downward-extending arc-shaped protrusion. The lower mold base is set below the upper mold unit, and two lower mold parts are set in the mounting notch of the lower mold base. Each of the two lower mold parts is rotatably connected to the lower mold base, and the two lower mold parts can be combined to form an arc-shaped notch adapted to the arc-shaped protrusion. The arc-shaped notch is used to place the clamp to be formed, so that the clamp to be formed can be extruded and formed by the upper mold unit and the two lower mold parts. At the same time, an elastic element is also set on the lower mold base. The elastic element is connected to each lower mold part and is used to drive the two lower mold parts to tilt and rotate upward after the clamp is formed, thereby pushing out the formed clamp, so that the clamp is demolded, avoiding the clamp from sticking to the two lower mold parts, ensuring production speed, improving work efficiency, and having good practicality. Attached Figure Description
[0014] Figure 1A schematic diagram of the structure of the mold for bending clamps provided in this embodiment of the utility model. Figure 1 ; Figure 2 A schematic diagram of the structure of the mold for bending clamps provided in this embodiment of the utility model. Figure 2 .
[0015] Explanation of reference numerals in the attached figures: 10. Upper die unit; 11. Mounting part; 12. Extrusion part; 13. Snap-fit groove; 14. Upper die base; 20. Lower die base; 30. Lower die component; 31. Rotating shaft part; 32. Arc-shaped notch; 40. Elastic component; 50. Limiting component; 60. Press. Detailed Implementation
[0016] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0017] It should be noted that the terms "length", "width", "height", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", and "tail" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not 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 utility model.
[0018] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Additionally, "multiple" and "several" mean two or more, unless otherwise explicitly specified.
[0020] Please refer to the following: Figure 1 and Figure 2 The present invention provides a mold for bending clamps. The mold for bending clamps includes an upper mold unit 10, a lower mold base 20, lower mold parts 30, and an elastic element 40. The upper mold unit 10 is detachably connected to a press 60 and has a downwardly extending arc-shaped protrusion. The lower mold base 20 is mounted on the press 60 and located below the upper mold unit 10, and has an installation notch. Two lower mold parts 30 are provided, both located within the installation notch. Each lower mold part 30 is rotatably connected to the lower mold base 20, and the two lower mold parts 30 can be combined to form an arc-shaped notch 32 that fits the arc-shaped protrusion and is used to place the clamp to be formed. The elastic element 40 is mounted on the lower mold base 20 and connected to each lower mold part 30, and is used to drive the two lower mold parts 30 to tilt and rotate upwards after the clamp is formed, thereby pushing out the formed clamp.
[0021] In this embodiment, the upper mold unit 10 is detachably connected to the press 60, and the lower mold base 20 is mounted on the press 60. The upper mold unit 10 has a downwardly extending arc-shaped protrusion, and the lower mold base 20 is provided below the upper mold unit 10, with a mounting notch on the lower mold base 20. Two lower mold parts 30 are provided in the mounting notch. Each lower mold part 30 is rotatably connected to the lower mold base 20, and the two lower mold parts 30 can be combined to form an arc-shaped notch 32 that matches the arc-shaped protrusion. The arc-shaped notch 32 is used to place the clamp to be formed. At the same time, an elastic element 40 is also provided on the lower mold base 20. The elastic element 40 is connected to each lower mold part 30 and is used to drive the two lower mold parts 30 to tilt and rotate upwards respectively after the clamp is formed, thereby pushing out the formed clamp.
[0022] The mold for bending clamps provided in this embodiment of the utility model, compared with the prior art, has an upper mold unit 10 and a lower mold base 20 on a press 60. The upper mold unit 10 has a downwardly extending arc-shaped protrusion. The lower mold base 20 is located below the upper mold unit 10, and two lower mold parts 30 are provided in the mounting notch of the lower mold base 20. Each of the two lower mold parts 30 is rotatably connected to the lower mold base 20, and the two lower mold parts 30 can be combined to form an arc-shaped notch 32 that matches the arc-shaped protrusion. The arc-shaped notch 32 is used to place the clamp to be formed, so that the clamp to be formed can be extruded and formed by the upper mold unit 10 and the two lower mold parts 30. Meanwhile, an elastic element 40 is also provided on the lower mold base 20. The elastic element 40 is connected to each lower mold part 30. It is used to drive the two lower mold parts 30 to tilt and rotate upwards respectively after the clamp is formed, so as to push out the formed clamp, so as to demold the clamp and avoid the clamp from sticking to the two lower mold parts 30, ensuring the production speed, improving work efficiency, and having good practicality.
[0023] Furthermore, the elastic element 40 includes multiple springs, one end of each spring being connected to the lower mold base 20 and the other end being connected to the corresponding lower mold part 30. Specifically, four springs are provided, arranged along the axis of pitching and rotating of the lower mold part 30. The four springs are respectively arranged on both sides of the two lower mold parts 30 (two on each side), that is, two springs are connected to each lower mold part 30, and along the axis of pitching and rotating of the lower mold part 30, the two springs are respectively located on both sides of the lower mold part 30.
[0024] In some embodiments, please refer to Figure 1 and Figure 2 The mounting notch has hinges at both ends, and each hinge is located at the bottom of the mounting notch. In this embodiment, hinges are provided at both ends of the mounting notch, and the two hinges are respectively used to rotatably connect the two lower mold parts 30. Both hinges are located at the bottom of the mounting notch, so that the two lower mold parts 30 can pitch and rotate around the corresponding hinges.
[0025] In some embodiments, please refer to Figure 1 and Figure 2 Each lower mold part 30 is provided with a pivot part 31 that is adapted to the corresponding hinge part. The hinge part is an arc-shaped groove adapted to the pivot part 31. The arc-shaped groove is a circle with a radius greater than three-quarters, which can limit the pivot part 31 and prevent the pivot part 31 from disengaging from the arc-shaped groove.
[0026] In some embodiments, please refer to Figure 1 When the bottoms of the two lower mold parts 30 are horizontally arranged, a gap is provided between the two lower mold parts 30, and a gap is also provided between the side of the two lower mold parts 30 near the lower mold base 20 and the lower mold base 20. In this embodiment, each lower mold part 30 is provided with a quarter-circle arc, and two quarter-circle arcs are combined to form an arc-shaped notch 32. Each lower mold part 30 has a side edge and a bottom edge. The side of the lower mold part 30 near the lower mold base 20 is the bottom edge, and the side of the lower mold part 30 away from the arc is the side edge. The side edge and the bottom edge are arranged perpendicularly. The pivot part 31 is provided at the intersection of the side edge and the bottom edge. A gap is provided between the side edge and the lower mold base 20, so as to facilitate the rotation of the two lower mold parts 30 in the mounting notch of the lower mold base 20.
[0027] In some embodiments, please refer to Figure 1 and Figure 2The mold for bending clamps provided in this embodiment of the invention also includes multiple limiting members 50. Each limiting member 50 is detachably connected to the lower mold base 20. Each limiting member 50 is located on both sides of each lower mold member 30 and abuts against each lower mold member 30. Each limiting member 50 is located at the hinge portion of the lower mold base 20. In this embodiment, the rotation axis of the lower mold member 30 is arranged in a horizontal direction. By providing multiple limiting members 50, along the extension direction of the rotation axis, each limiting member 50 is located on both sides of each lower mold member 30 and abuts against each lower mold member 30, thereby preventing displacement of the lower mold member 30 in the extension direction of the rotation axis. Each limiting member 50 is detachably connected to the lower mold base 20, thereby facilitating the installation and removal of each limiting member 50.
[0028] In some embodiments, please refer to Figure 1 and Figure 2 The lower mold base 20 is provided with multiple insertion holes, each corresponding to a limiting member 50, and each insertion hole is used for insertion into the corresponding limiting member 50. In this embodiment, the lower mold base 20 is provided with insertion holes corresponding to each limiting member 50 to facilitate insertion of the limiting member 50 and make operation convenient.
[0029] In some embodiments, please refer to Figure 1 and Figure 2 The upper mold unit 10 includes an upper mold base 14, an upper mold structure, and locking components. The upper mold base 14 is connected to the press 60. The upper mold structure is detachably connected to the upper mold base 14, and the upper mold structure has an arc-shaped protrusion. Multiple locking components are provided, each used to lock and fix the upper mold structure onto the upper mold base 14. In this embodiment, the upper mold base 14 is connected to the press 60, and the upper mold structure is detachably connected to the upper mold base 14. The upper mold structure has an arc-shaped protrusion, which facilitates the installation and disassembly of the upper mold structure and the replacement of the mold. Multiple locking components are provided, and the upper mold structure is locked and fixed onto the upper mold base 14 by these multiple locking components, thereby ensuring the stability of the upper mold structure installation. Specifically, the locking components can be locking bolts.
[0030] In some embodiments, please refer to Figure 1 and Figure 2The upper mold structure includes a mounting part 11 and an extrusion part 12. The mounting part 11 has a snap-fit groove 13 for snap-fitting with the upper mold base 14. The mounting part 11 has multiple mounting holes, each corresponding to a locking component. The extrusion part 12 is located at the lower end of the mounting part 11 and is integrally connected to the mounting part 11. The extrusion part 12 includes an arc-shaped protrusion. In this embodiment, the mounting part 11 has a snap-fit groove 13, which is snap-fitted to the upper mold base 14 to initially fix the upper mold base 14. Then, the mounting part 11 and the upper mold base 14 are locked and fixed by the locking components. The extrusion part 12 is provided at the lower end of the mounting part 11 and is integrally connected to the mounting part 11. The extrusion part 12 includes an arc-shaped protrusion, which is used to extrude and form the clamp to be formed.
[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A mold for bending clamps, characterized in that, include: The upper die unit is detachably connected to the press, and the upper die unit has a downwardly extending arc-shaped protrusion; The lower die holder is mounted on the press and located below the upper die unit, and has an installation notch; The lower mold is provided in two parts, both of which are located in the mounting notch; each of the lower molds is rotatably connected to the lower mold base, and the two lower molds can be combined to form an arc-shaped notch that is adapted to the arc-shaped protrusion and for placing the clamp to be formed; An elastic element is disposed on the lower mold base and connected to each of the lower mold parts. It is used to drive the two lower mold parts to tilt and flip upward respectively after the clamp is formed, so as to push out the formed clamp.
2. The mold for bending clamps as described in claim 1, characterized in that, The mounting notch has hinged portions at both ends, and each hinged portion is located at the bottom of the mounting notch.
3. The die for bending clamps as described in claim 2, characterized in that, Each of the lower mold components is provided with a pivot portion that is adapted to the corresponding hinge portion.
4. The die for bending clamps as described in claim 2, characterized in that, When the bottoms of the two lower mold parts are horizontally arranged, there is a gap between the two lower mold parts, and there is a gap between the side of the two lower mold parts near the lower mold base and the lower mold base.
5. The die for bending clamps as described in claim 2, characterized in that, The mold for bending the clamp also includes multiple limiting members, each of which is detachably connected to the lower mold base. Each limiting member is located on both sides of the lower mold member and abuts against the lower mold member. Each limiting member is located at the hinge portion of the lower mold base.
6. The die for bending clamps as described in claim 5, characterized in that, The lower mold base is provided with a plurality of insertion holes, each insertion hole being configured to correspond one-to-one with each of the limiting members, and each insertion hole being used for insertion into the corresponding limiting member.
7. The mold for bending clamps as described in claim 1, characterized in that, The upper mold unit includes: The upper mold base is connected to the press. The upper mold structure is detachably connected to the upper mold base, and the upper mold structure has the arc-shaped protrusion; Multiple locking components are provided to lock and fix the upper mold structure onto the upper mold base.
8. The die for bending clamps as described in claim 7, characterized in that, The upper mold structure includes: The mounting part has a snap-fit groove for snap-fit connection with the upper mold base. The mounting part has multiple mounting holes, and each mounting hole is correspondingly provided with each locking member. The extrusion part is located at the lower end of the mounting part and is integrally connected to the mounting part. The extrusion part includes the arc-shaped protrusion.