A combined plug-in core for a horizontal stretch-bender
By using a modular plug-in core structure, the problem of trim damage caused by clamping structures is solved, achieving high-firmness connection and convenient insertion of trim, and reducing production costs.
Patent Information
- Application Number
- CN202522229154.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-22
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-10-22
AI Technical Summary
The clamping structure of conventional bending machines can easily damage the trim strips, leading to increased production costs and requiring additional cutting allowances to ensure quality.
It adopts a modular plug-in core structure, including a plug-in core docking seat, a docking handle, a plug-in base, and a removable pad. By adjusting the length and docking method, it avoids damage to the trim strip and enables insertion and bending operations.
It achieves high-strength docking and easy insertion of trim strips, avoids damage to the trim strip surface, and reduces production costs.
Smart Images

Figure CN224928507U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of insert and pull core technology for horizontal bending machines, and in particular to a combined insert and pull core for horizontal bending machines. Background Technology
[0002] Conventional bending machines typically use a clamping structure to fix the ends of the trim strips. This clamping method can easily damage the surface of the trim strips. Therefore, in order to ensure the quality of the trim strips, an extra allowance needs to be added to both ends of the trim strips. After the bending operation, the allowance needs to be cut off, which will greatly increase the production cost of the trim strips. In order to solve the above problems, it is necessary to change the clamping structure to a plug-in core structure. Summary of the Invention
[0003] The technical problem to be solved by this utility model is to provide a combined insert-extractor core for a horizontal bending machine, which has the characteristics of adjustable extension length, high docking firmness, and convenient insertion.
[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: a combined insert-extractor core for a horizontal bending machine is provided, including an insert-extractor core docking seat, a docking handle, and an insert-extractor base. A docking handle is embedded in one end of the insert-extractor core docking seat, and an insert-extractor base is installed on one end of the insert-extractor core docking seat. Several removable pads stacked horizontally are installed on one side of the insert-extractor base. An insert-extractor head is installed at the end of each removable pad. Several protrusions are provided on one side of each removable pad, and several slots matching the protrusions are provided on the other side. When two removable pads are docked, a docking hole is provided on the removable pad that passes vertically through the two removable pads. A connecting bolt connecting the two removable pads is installed in the docking hole.
[0005] In this technical solution, a plug-in core docking seat is provided to facilitate the installation of the handle and the plug-in base. A removable pad is installed to facilitate the extension or shortening of the plug-in core. A plug-in head is provided to facilitate the insertion of the plug-in core into the trim strip, which facilitates bending of the trim strip and also avoids damage to the surface of the trim strip. A protruding head and a slot are provided to facilitate the mutual docking of the removable pads. At the same time, a docking hole is provided to facilitate the installation of the connecting bolt.
[0006] As a supplement to this technical solution, a T-shaped connector is provided on one end of the docking handle, and a connecting piece embedded in the plug-in core docking seat is provided on the other end of the docking handle. The connecting piece is vertical, and a longitudinal docking shaft that penetrates the plug-in core docking seat and the connecting piece is installed on both the upper and lower parts of the connecting piece.
[0007] In this technical solution, a T-type connector is provided to facilitate the use of a docking base, a connecting piece is provided to facilitate the installation of the longitudinal docking shaft, and the longitudinal docking shaft is installed to dock and fix with the plug-in core docking seat.
[0008] As a supplement to this technical solution, the plug-in core docking seat is provided with a rectangular hole in the middle, and a docking groove is provided at the end where the plug-in core docking seat and the plug-in base dock.
[0009] In this technical solution, a rectangular hole is provided to facilitate the use of a fixed channel, and a mating groove is provided to facilitate the installation of the plug-in base.
[0010] As a supplement to this technical solution, the plug-in base is provided with a number of plugging protrusions that are embedded in the plug-in core docking seat, the plug-in base is equipped with two vertical docking shafts that pass through the plug-in base and the plug-in core docking seat, and the plug-in base is provided with mounting holes that match and align with the removable pad.
[0011] The mounting protrusions facilitate docking with the plug-in core docking seat, while the mounting holes on the plug-in base facilitate docking with the removable pad.
[0012] As a supplement to this technical solution, one end of the plug-in head is connected to the detachable pad, and the other end gradually narrows, with the edges of the gradually narrowing end all adopting an arc-shaped structure.
[0013] In this technical solution, the gradually decreasing size of the plug head is used to facilitate insertion into the decorative strip.
[0014] As a supplement to this technical solution, the plug-in base is composed of three horizontally arranged base panels stacked one on top of the other. The three base panels can be modified according to the shape of the inner hole of the device strip during use. One or two base panels can be retained according to actual needs, and some removable pads can be removed accordingly, so that the shape of the plug-in base, removable pads and plug-in head can match the inner hole of the decorative strip.
[0015] Beneficial effects: This utility model relates to a combined plug-in core for a horizontal bending machine. It features a plug-in core docking seat for easy connection of the handle and plug-in base, removable pads for easy extension or shortening of the plug-in core, a plug-in head for easy insertion of the plug-in core into the trim strip, facilitating bending of the trim strip while preventing damage to its surface, and a protruding head and slot for easy connection of the removable pads. A docking hole facilitates the installation of the connecting bolt. It features adjustable extension length, high docking firmness, and easy insertion. Attached Figure Description
[0016] Figure 1 This is a structural view of the present invention; Figure 2 This is a structural view of the docking handle described in this utility model; Figure 3 This is a structural view of the insertion / removal base described in this utility model; Figure 4 This is a structural view of the detachable pad block described in this utility model.
[0017] Illustration: 1. Plug-in core connector, 2. Connecting handle, 3. Plug-in base, 4. Removable pad, 5. Plug-in head, 6. Rectangular hole, 7. Connecting groove, 8. Connecting piece, 9. T-type connector, 10. Longitudinal connecting shaft, 11. Plug-in protrusion, 12. Vertical connecting shaft, 13. Mounting hole, 14. Connecting hole, 15. Slot, 16. Protrusion head, 17. Base panel. Detailed Implementation
[0018] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.
[0019] The embodiments of this utility model relate to a combined insert-extractor core for a horizontal bending machine, such as... Figures 1-4 As shown, it includes a plug-in core docking seat 1, a docking handle 2, and a plug-in base 3. The docking handle 2 is embedded in one end of the plug-in core docking seat 1, and the plug-in base 3 is installed on one end of the plug-in core docking seat 1. Several removable pads 4 are stacked horizontally on one side of the plug-in base 3. A plug-in head 5 is installed at the end of each removable pad 4. Several protrusions 16 are provided on one side of each removable pad 4, and several slots 15 that match the protrusions 16 are provided on the other side. When two removable pads 4 are docked, a docking hole 14 is provided on each removable pad 4 that passes vertically through the two removable pads 4. A connecting bolt connecting the two removable pads 4 is installed in the docking hole 14.
[0020] In this technical solution, a plug-in core docking seat 1 is provided to facilitate the installation of the docking handle 2 and the plug-in base 3. A removable pad 4 is provided to facilitate the extension or shortening of the plug-in core. A plug-in head 5 is provided to facilitate the insertion of the plug-in core into the trim strip, which facilitates the bending of the trim strip and also avoids damage to the surface of the trim strip. A protrusion head 16 and a slot 15 are provided to facilitate the mutual docking of the removable pad 4. At the same time, a docking hole 14 is provided to facilitate the installation of the connecting bolt.
[0021] As a supplement to this technical solution, a T-shaped connector 9 is provided on one end of the docking handle 2, and a connecting piece 8 embedded in the plug-in core docking seat 1 is provided on the other end of the docking handle 2. The connecting piece 8 is vertical, and a longitudinal docking shaft 10 that penetrates the plug-in core docking seat 1 and the connecting piece 8 is installed on both the upper and lower parts of the connecting piece 8.
[0022] In this technical solution, a T-type connector 9 is provided to facilitate the use of a docking base, and a connecting piece 8 is provided to facilitate the installation of the longitudinal docking shaft 10. The longitudinal docking shaft 10 is installed to dock and fix with the plug-in core docking seat 1.
[0023] As a supplement to this technical solution, a rectangular hole 6 is provided in the middle of the plug-in core docking seat 1, and a docking groove 7 is provided at the end where the plug-in core docking seat 1 and the plug-in base 3 are connected.
[0024] In this technical solution, a rectangular hole 6 is provided to facilitate the use of a fixed channel, and a mating groove 7 is provided to facilitate the installation of the plug-in base 3.
[0025] As a supplement to this technical solution, the plug-in base 3 is provided with a plurality of plugging protrusions 11 that are embedded in the plug-in core docking seat 1, and the plug-in base 3 is provided with two vertical docking shafts 12 that pass through the plug-in base 3 and the plug-in core docking seat 1, and the plug-in base 3 is provided with mounting holes 13 that match and align with the detachable pad block 4.
[0026] The mounting protrusion 11 is used to facilitate docking with the plug-in core docking seat 1, and the mounting hole 13 on the plug-in base 3 is used to facilitate docking with the removable pad 4.
[0027] As a supplement to this technical solution, one end of the plug-in head 5 is connected to the detachable pad 4, and the other end gradually shrinks, with the edges of the gradually shrinking end all adopting an arc-shaped structure.
[0028] In this technical solution, the gradually decreasing size of the plug head 5 is used to facilitate insertion into the decorative strip.
[0029] As a supplement to this technical solution, the plug-in base 3 is composed of three horizontally arranged base panels 17 stacked one on top of the other. The three base panels 17 can be modified according to the shape of the inner hole of the device strip during use. One or two base panels 17 can be retained according to actual needs, and some removable pads 4 can be removed accordingly, so that the shape of the plug-in base 3, the removable pads 4 and the plug-in head 5 can match the inner hole of the decorative strip.
[0030] Example When using this device, the excess removable pad 4 is removed according to the inner hole length of the decorative strip, so that the length of the combination of the plug-in base 3, the removable pad 4 and the plug-in head 5 matches the inner hole length. The combination structure of the plug-in base 3, the removable pad 4 and the plug-in head 5 is completely inserted into the decorative strip. Then, the bending of the decorative strip is achieved by rotating the structure, moving longitudinally back and forth and moving up and down.
[0031] When the cross-sectional shape and the inner hole shape of the decorative strip change, the plug-in base 3 is assembled from three base panels 17. Depending on the cross-sectional shape and the inner hole shape of the decorative strip, one or two base panels 17 can be removed to ensure that the shape of the plug-in base 3 matches the inner hole shape.
Claims
1. A combined insert-extractor core for a horizontal tension bending machine, characterized in that: The device includes a plug-in core docking seat (1), a docking handle (2), and a plug-in base (3). The plug-in core docking seat (1) has a docking handle (2) embedded in one end and a plug-in base (3) installed on one end. A number of removable pads (4) stacked horizontally are installed on one side of the plug-in base (3). A plug-in head (5) is installed at the end of each removable pad (4). A number of protrusions (16) are provided on one side of each removable pad (4), and a number of slots (15) matching the protrusions (16) are provided on the other side. When two removable pads (4) are docked, a docking hole (14) is provided on the removable pad (4) that passes vertically through the two removable pads (4). A connecting bolt connecting the two removable pads (4) is installed in the docking hole (14).
2. The combined insert-pull core for a horizontal bending machine according to claim 1, characterized in that: The docking handle (2) is provided with a T-type connector (9) at one end and a connecting piece (8) embedded in the plug-in core docking seat (1) at the other end. The connecting piece (8) is vertical and a longitudinal docking shaft (10) that penetrates the plug-in core docking seat (1) and the connecting piece (8) is installed on both the upper and lower parts of the connecting piece (8).
3. A combined insert-extractor core for a horizontal bending machine according to claim 1, characterized in that: The plug-in core docking seat (1) has a rectangular hole (6) in the middle, and a docking groove (7) is provided at one end of the plug-in core docking seat (1) and the plug-in base (3) docking.
4. A combined insert-extractor core for a horizontal bending machine according to claim 1, characterized in that: The plug-in base (3) is provided with a number of plug-in protrusions (11) that are embedded in the plug-in core docking seat (1). The plug-in base (3) is provided with two vertical docking shafts (12) that pass through the plug-in base (3) and the plug-in core docking seat (1). The plug-in base (3) is provided with mounting holes (13) that match and align with the detachable pad (4).
5. A combined insert-extractor core for a horizontal tension bending machine according to claim 1, characterized in that: The plug-in head (5) is connected to a detachable pad (4) at one end, and gradually shrinks at the other end, with the edge of the gradually shrinking end having an arc-shaped structure.
6. A combined insert-extractor core for a horizontal tension bending machine according to claim 1, characterized in that: The plug-in base (3) is composed of three horizontally arranged base panels (17) stacked on top of each other.
