Bending and cold heading die for hardware
By designing a hardware bending cold heading mold including mold shell, bending slider, movable pin and reset components, the problems of impact on the appearance, difficulty in controlling the size, high cost and low efficiency during the bending process of existing hardware are solved, and efficient and accurate cold heading molding is achieved.
Patent Information
- Application Number
- CN202421638584.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-11
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-07-11
AI Technical Summary
During the bending process of existing hardware, there are problems such as the appearance is affected, the size is difficult to control, the processing cost is high, and the production efficiency is low.
A bending cold heading mold for hardware is designed, including a mold shell, bending slider, movable pin, and reset components. Through the design of bending grooves and longitudinal through grooves, the reset springs and guide slopes are used to achieve efficient cold heading molding of hardware.
The processing process is simplified, the processing accuracy and production efficiency are improved, the machining range is expanded, and the processing cost is reduced.
Smart Images
Figure CN222767232U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cold heading dies, in particular to a bending cold heading die for hardware. Background Art
[0002] There is one model as attached Figure 5 The hardware 60 shown in the figure needs to be bent in the middle to form a bent portion 61, and the upper and lower ends of the hardware 60 are misaligned. Figure 6 At present, the bending process needs to reduce the diameter to achieve the bending effect, which will affect the appearance of the product and make the size difficult to control. In some cases, cold heading cannot be used and it can only be processed by lathe. The processing process is cumbersome and the production range is limited. There are problems of high processing cost and low production efficiency. Summary of the invention
[0003] The problem to be solved by the utility model is to provide a bending cold heading die for hardware parts, simplify the processing process, improve the processing accuracy and improve the production efficiency.
[0004] To solve the above technical problems, a bending cold heading die for hardware provided by the utility model includes a mold shell, a bending slider, a movable pin, and a reset assembly. The bottom of the bending slider is provided with a bending groove, the top of the bending slider is provided with a longitudinal through groove connected to the bending groove, the bottom of the mold shell is provided with a bending slide groove, the bending slider is slidably connected in the bending slide groove along the X-axis direction, the movable pin includes a guide plate, both sides of the bottom end of the guide plate are provided with step portions, both sides of the connection between the guide plate and the step portion are provided with a first guide inclined surface, and the movable pin is movably provided between one side of the bending slider and one side of the bending slide groove. The bottom of the side of the bending slider and the bending slide groove is provided with a limiting groove matching the step portion, and the connection between the side of the bending slider and the bending slide groove and the limiting groove is provided with a second guide inclined surface matching the first guide inclined surface. The reset assembly includes a spring guide sleeve, a reset spring, and a pin arranged on one side of the mold shell. A through hole is penetrated between the other side of the bending slide groove and the spring guide sleeve. The pin is fixedly connected to one end of the spring guide sleeve. A limiting column arranged opposite to the through hole is arranged on the other side of the bending slider, and the limiting column is movably arranged in the through hole. The reset spring is arranged in the spring guide sleeve and abuts between the pin and the limiting column.
[0005] Preferably, it also includes a ejection assembly, which includes a ejection plate and an ejector pin. A longitudinal slide groove connected to the bending slide groove and matched with the ejection plate is provided on the top of the mold shell. The ejection plate is movably arranged in the longitudinal slide groove. The bottom end of the ejector pin is movably arranged in the longitudinal through groove and its top end is slidably connected to the bottom of the ejection plate along the X-axis direction.
[0006] Preferably, a pad is provided at the bottom of the longitudinal slide groove, the bottom of the pad is adjacent to the top of the bending slide block, an X-axial guide groove matching the ejector is provided through the pad, and the ejector is movably provided in the X-axial guide groove.
[0007] Preferably, the movable pin further includes a contact end portion connected to the top end of the guide plate, and the contact end portion is located between the ejector plate and the backing plate.
[0008] The beneficial effects of the utility model are as follows: the utility model provides a bending cold heading mold for hardware, the top end of the hardware is inserted into the longitudinal through groove and the part to be bent is located in the bending groove, when the mold is closed, the part below the part to be bent of the hardware is positioned, and the movable pin is lifted up, and when the first guide inclined surface abuts against the second guide inclined surface, the bending slide block will be pushed toward the return spring side and move along the bending slide groove toward the return spring side, and the longitudinal through groove and the bending groove respectively perform cold heading on the upper end and the part to be bent of the hardware, so that the upper end and the lower end of the hardware are misaligned, and a bending part is formed at the part to be bent of the hardware, when the limit column moves toward the pin side, the return spring can play a buffering role on the bending slide block, thereby improving the cold heading forming quality, and after the movable pin is reset, the bending slide block can move and reset along the bending slide groove under the elastic force of the return spring, and its structure is simple, can simplify the processing process, improve the processing efficiency and processing accuracy, and can have a wider processing range. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 The cross-sectional structure schematic diagram of the mold of the utility model is illustrated;
[0010] Figure 2 The cross-sectional structure schematic diagram of the mold of the utility model in the mold opening state is illustrated;
[0011] Figure 3 The cross-sectional structure schematic diagram of the mold of the utility model in the mold closing state is illustrated;
[0012] Figure 4 The cross-sectional structure diagram of the movable pin of the utility model is illustrated;
[0013] Figure 5 The schematic diagram of the cross-sectional structure of the hardware of the utility model before processing is illustrated;
[0014] Figure 6 The cross-sectional structure schematic diagram of the hardware after processing of the utility model is illustrated.
[0015] Explanation of the accompanying figures: mold shell 10, bending slide groove 11, through hole 110, longitudinal slide groove 12, bending slider 20, bending groove 21, longitudinal through groove 22, limit groove 23, second guide slope 24, limit column 25, movable pin 30, guide plate 31, step portion 32, first guide slope 33, contact end portion 34, spring guide sleeve 40, return spring 41, pin 42, ejector plate 50, ejector pin 51, pad 52, X-axial guide groove 520, hardware 60, bending portion 61. DETAILED DESCRIPTION
[0016] To make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments.
[0017] Based on the described embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present disclosure.
[0018] refer to Figure 1-6 .
[0019] The utility model provides a bending cold heading mold for hardware, comprising a mold shell 10, a bending slider 20, a movable pin 30, and a reset component. The bottom of the bending slider 20 is provided with a bending groove 21, and the top of the bending slider 20 is provided with a longitudinal through groove 22 connected with the bending groove 21. The bottom of the mold shell 10 is provided with a bending slide 11, and the bending slider 20 is slidably connected in the bending slide 11 along the X-axis direction. The movable pin 30 comprises a guide plate 31, and both sides of the bottom end of the guide plate 31 are provided with a step portion 32. Both sides of the connection between the guide plate 31 and the step portion 32 are provided with a first guiding inclined surface 33. The movable pin 30 is movably arranged between one side of the bending slider 20 and one side of the bending slide 11. The bending slider 20 and the bending slide 11 are provided with a first guide inclined surface 33. A limiting groove 23 matching the step portion 32 is provided at the bottom of the side surface of the bending slide 20, and a second guiding inclined surface 24 matching the first guiding inclined surface 33 is provided at the connection between the side surface of the bending slide 20 and the bending slide 11 and the limiting groove 23. The reset component includes a spring guide sleeve 40, a reset spring 41, and a pin 42 arranged on one side of the mold shell 10. A through hole 110 is penetrated between the other side surface of the bending slide 11 and the spring guide sleeve 40. The pin 42 is fixedly connected to one end of the spring guide sleeve 40. A limiting column 25 arranged opposite to the through hole 110 is provided on the other side surface of the bending slide 20. The limiting column 25 is movably arranged in the through hole 110. The reset spring 41 is arranged in the spring guide sleeve 40 and abuts between the pin 42 and the limiting column 25.
[0020] The specific use principle is that the top end of the hardware 60 is inserted into the longitudinal through groove 22 and the part to be bent is located in the bending groove 21. When the mold is closed, the part below the part to be bent of the hardware 60 is positioned, and the movable pin 30 is lifted up. When the first guide slope 33 abuts against the second guide slope 24, the bending slide 20 will be pushed toward the return spring 41 and move along the bending slide 11 toward the return spring 41. The longitudinal through groove 22 and the bending groove 21 respectively push the upper end of the hardware 60 and the part to be bent. Cold heading is performed, thereby causing the upper and lower ends of the hardware 60 to be misaligned, and a bending portion 61 is formed at the part of the hardware 60 to be bent. When the limit column 25 moves toward the pin 42, the return spring 41 can buffer the bending slider 20, thereby improving the cold heading forming quality. After the movable pin 30 is reset, the bending slider 20 can move and reset along the bending slide groove 11 under the elastic force of the return spring 41. It has a simple structure, can simplify the processing process, improve processing efficiency and processing accuracy, and has a wider processing range.
[0021] Based on the above embodiment, the ejector assembly is also included, and the ejector assembly includes an ejector plate 50 and an ejector pin 51. The top of the mold shell 10 is provided with a longitudinal slide groove 12 that is connected to the bending slide groove 11 and matches the ejector plate 50. The ejector plate 50 is movably arranged in the longitudinal slide groove 12, and the bottom end of the ejector pin 51 is movably arranged in the longitudinal through groove 22, and its top end is slidably connected to the bottom of the ejector plate 50 along the X-axis direction. Since the bottom end of the ejector pin 51 is inserted in the longitudinal through groove 22, when the bending slide 20 moves along the bending slide groove 11, the ejector pin 51 will be driven to move synchronously. When the hardware 60 is bent, the ejector plate 50 is pushed to move downward along the longitudinal slide groove 12. The ejector pin 51 moves downward under the push of the ejector plate 50 and ejects the hardware 60 from the bending slide 20. After the stripping is completed, the movable pin 30 is pulled back to reset, and the bending slide 20 is reset under the elastic force of the reset spring 41.
[0022] Based on the above embodiment, a pad 52 is provided at the bottom of the longitudinal slide groove 12, and the bottom of the pad 52 is adjacent to the top of the bending slider 20, so as to support the bending slider 20. An X-axial guide groove 520 matching the ejector pin 51 is penetrated through the pad 52, and the ejector pin 51 is movably arranged in the X-axial guide groove 520, so as to guide the horizontal movement of the ejector pin 51.
[0023] Based on the above embodiment, the movable pin 30 further includes a contact end 34 connected to the top of the guide plate 31, and the contact end 34 is located between the ejector plate 50 and the pad 52. After the ejector plate 50 pushes the ejector pin 51 downward to eject the bent hardware 60 from the bending slide 20, the bottom of the ejector plate 50 will contact the contact end 34 and push the movable pin 30 to move downward and reset. When the movable pin 30 is reset, the bending slide 20 will be reset under the elastic force of the reset spring 41.
[0024] The above implementation modes are merely descriptions of the preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering and technical personnel in the field shall fall within the protection scope determined by the claims of the present invention.
Claims
1. A bending cold heading die for hardware, characterized in that: The present invention comprises a mold shell, a bending slider, a movable pin and a reset assembly, wherein a bending groove is arranged at the bottom of the bending slider, a longitudinal through groove connected to the bending groove is arranged at the top of the bending slider, a bending slide groove is arranged at the bottom of the mold shell, the bending slider is slidably connected in the bending slide groove along the X-axis direction, the movable pin comprises a guide plate, both side surfaces of the bottom end of the guide plate are provided with step portions, both side surfaces of the connection between the guide plate and the step portion are provided with a first guiding inclined surface, the movable pin is movably arranged between one side surface of the bending slider and one side surface of the bending slide groove, and the bottom of the side surfaces of the bending slider and the bending slide groove are provided with a longitudinal through groove connected to the bending groove. A limiting groove matching the step portion, a second guide slope matching the first guide slope is arranged at the connection between the bending slider, the side of the bending slider and the limiting groove and the limit groove, the reset assembly comprises a spring guide sleeve, a reset spring and a pin arranged on one side of the mold shell, a through hole is penetrated between the other side of the bending slider and the spring guide sleeve, the pin is fixedly connected to one end of the spring guide sleeve, and a limiting column arranged opposite to the through hole is arranged on the other side of the bending slider, the limiting column is movably arranged in the through hole, and the reset spring is arranged in the spring guide sleeve and abuts between the pin and the limiting column.
2. A bending cold heading die for hardware according to claim 1, characterized in that: It also includes a ejection component, which includes an ejection plate and an ejector pin. The top of the mold shell is provided with a longitudinal slide groove that is connected to the bending slide groove and matches the ejection plate. The ejection plate is movably arranged in the longitudinal slide groove. The bottom end of the ejector pin is movably arranged in the longitudinal through groove and the top end thereof is slidably connected to the bottom of the ejection plate along the X-axis direction.
3. A bending cold heading die for hardware according to claim 2, characterized in that: A pad is provided at the bottom of the longitudinal slide groove, the bottom of the pad is adjacent to the top of the bending slide block, an X-axial guide groove matching the ejector pin is penetrated through the pad, and the ejector pin is movably arranged in the X-axial guide groove.
4. A bending cold heading die for hardware according to claim 3, characterized in that: The movable pin also includes a contact end portion connected to the top end of the guide plate, and the contact end portion is located between the ejector plate and the pad.