Easily detachable side pin structure
By connecting the side pin to the piston rod through the insertion hole, sliding hole, and spring, and combining it with protective components, the problems of inconvenient side pin disassembly and mold structure damage are solved, achieving convenient disassembly and reliable connection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 安徽千缘模具有限公司
- Filing Date
- 2025-05-22
- Publication Date
- 2026-04-17
AI Technical Summary
In the existing technology, the connection structure between the side pin and the mold is prone to stripping and is inconvenient to disassemble, and requires hole enlargement operation which damages the mold structure.
The side pin and piston rod are connected by a insertion hole, a sliding hole and a spring. Combined with the design of the protective component, the side pin can be removed without threaded rotation, and can be fixed or removed by the spring restoring force.
This allows for easy disassembly of the side pins, avoiding damage to the mold structure and improving the reliability and service life of the connection.
Smart Images

Figure CN224134949U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of side pin structure technology, specifically to an easily detachable side pin structure. Background Technology
[0002] The main function of the side pins in large molds is to perform specific processing actions when the mold is working, such as deburring the transverse holes of parts in precision edge molds. The side pins slide in the side pin holes on the mold and are usually connected to the drive mechanism, such as oil cylinders and piston rods, relying on external power to achieve linear motion to complete the processing operation.
[0003] The piston rod and side pin are usually connected by threads, such as Figure 4 As shown, the end of the piston rod is designed as a flat head with threads, and there is a corresponding through hole on the side pin. The two are connected together by threads, but after frequent turning, the threads may strip.
[0004] Chinese Utility Model Announcement No. CN216656058U includes a side pin assembly, a locking assembly, and a connecting bolt. The locking assembly is snapped into one end of the side pin assembly, and the connecting bolt is inserted into the top of the locking assembly. One end of the connecting bolt is provided with an elastic limiting mechanism. The elastic limiting mechanism includes an elastic retraction assembly, a rotating plate, and a stop plate. The bottom end of the stop plate is in contact with the top end of the locking assembly. This utility model utilizes the combination of the connecting bolt and the elastic limiting mechanism. By rotating the rotating plate to a horizontal position, the stop plate is positioned to the side of the locking plate. At this point, the locking assembly no longer limits the position of the side pin assembly, thus allowing for removal of the side pin assembly without rotating the threads of the connecting bolt. This extends the service life of the connecting bolt and makes the assembly and disassembly of the side pin assembly more convenient.
[0005] The applicant discovered some shortcomings in the use of the patent: the diameter of the side pin hole on the mold is usually matched with the side pin, so that the side pin slides in the side pin hole. However, due to the locking component and elastic retraction component of the above patent, the overall structure of the side pin is large, and it is necessary to enlarge the side pin hole on the mold, which damages the structure of the mold and is not convenient.
[0006] Therefore, this utility model is designed with an easily detachable side pin structure to solve the problems existing in the prior art. Utility Model Content
[0007] The purpose of this invention is to provide an easily detachable side pin structure to solve the problems mentioned in the background art.
[0008] To achieve the above objectives, this utility model provides the following technical solution: an easily detachable side pin structure, comprising: a side pin and a piston rod, wherein one side of the side pin has an insertion hole for inserting the piston rod, and both ends of one side of the piston rod have sliding holes, in which a sliding rod is slidably installed, and the sliding rod and the sliding hole are connected by a spring, and one side of the side pin has two square grooves, which are connected to the insertion hole through a through hole, and the through hole and the sliding rod are slidably installed, and a protective component is provided on the square groove.
[0009] Preferably, the end of the slide bar away from the spring is provided with a rubber layer, which can protect that end of the slide bar.
[0010] Preferably, the protective component includes a sealing plate that is inserted into the square groove. The sealing plate seals the square groove, reducing the entry of impurities and oil into the groove.
[0011] Preferably, the inner wall of the square groove is equipped with a magnetic frame that magnetically attracts the sealing plate. The magnetic frame can attract the sealing plate and improve the stability of the sealing plate in the square groove.
[0012] Preferably, a plug rod is installed on one side of the sealing plate, and a slot is provided on the slide rod for sliding connection with the plug rod. After the sealing plate is installed, the plug rod is inserted into the slot, which can limit the slide rod and improve its stability.
[0013] Preferably, two pull rods are provided on the side of the sealing plate away from the insertion rod, so that the staff can easily pull the sealing plate out of the square groove.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] 1. This utility model allows the side pin to be aligned with the piston rod by pressing two sliding rods into the sliding hole and squeezing the spring. Once fully inserted, the through hole and the sliding hole are aligned, and the sliding rod slides out through the through hole by the restoring force of the spring, thus fixing the side pin and the piston rod. For disassembly, simply press the two sliding rods again to remove them from the through hole, and the side pin can be removed. Disassembly is convenient and does not increase the overall size of the side pin, eliminating the need to enlarge the side pin hole of the mold and avoiding damage to the mold structure. Attached Figure Description
[0016] Figure 1 This is a front view schematic diagram of the present invention;
[0017] Figure 2 This is a schematic diagram of the protective component structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the piston rod structure of this utility model;
[0019] Figure 4 This is a schematic diagram of the prior art side pin structure of this utility model.
[0020] In the diagram: 1. Side pin; 2. Piston rod; 3. Insertion hole; 4. Sliding hole; 5. Sliding rod; 6. Spring; 7. Square groove; 8. Through hole; 9. Protective component; 901. Sealing plate; 902. Magnetic frame; 903. Insert rod; 904. Slot; 905. Pull rod. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figure 1-3 An embodiment of this utility model provides an easily detachable side pin structure, comprising: a side pin 1 and a piston rod 2. One side of the side pin 1 has an insertion hole 3 for inserting into the piston rod 2. Both ends of one side of the piston rod 2 have sliding holes 4. A sliding rod 5 is slidably installed in the sliding holes 4. The sliding rod 5 and the sliding holes 4 are connected by a spring 6. Two square grooves 7 are provided on one side of the side pin 1. The square grooves 7 and the insertion hole 3 are connected by a through hole 8. The through hole 8 and the sliding rod 5 are slidably installed. A protective component 9 is provided on the square groove 7.
[0023] Please see Figure 1-3 In this embodiment: the end of the slide bar 5 away from the spring 6 is provided with a rubber layer.
[0024] Please see Figure 1-3 In this embodiment: the protective component 9 includes a sealing plate 901, which is inserted into the square groove 7.
[0025] Please see Figure 1-3 In this embodiment: the inner wall of the square groove 7 is equipped with a magnetic frame 902 that magnetically attracts the sealing plate 901. The sealing plate 901 is made of metal, and the magnetic frame 902 is made of magnet.
[0026] Please see Figure 1-3 In this embodiment: a plug rod 903 is installed on one side of the sealing plate 901, and a slot 904 is provided on the slide rod 5 to slide and connect with the plug rod 903.
[0027] Please see Figure 1-3 In this embodiment: two pull rods 905 are provided on the side of the sealing plate 901 away from the insertion rod 903.
[0028] Working principle: During installation, first drive the piston rod 2 to extend out of the side pin hole. Then press the two sliding rods 5 to allow them to enter the sliding hole 4 and compress the spring 6. Then, align the insertion hole 3 of the side pin 1 with the piston rod 2 and insert it. After full insertion, the sliding hole 4 and the through hole 8 are aligned. Through the restoring force of the spring 6, one end of the sliding rod 5 will spring into the square groove 7 and pass through the through hole 8, thus completing the installation of the side pin 1 and the piston rod 2. During disassembly, press the two sliding rods 5 again to remove them from the through hole 8, and the side pin 1 can be removed. The contents not described in detail in this instruction are existing technologies known to those skilled in the art.
[0029] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A side pin structure in a knockdown form, comprising: The side pin (1) and piston rod (2) are characterized in that: a insertion hole (3) for inserting into the piston rod (2) is provided on one side of the side pin (1), and sliding holes (4) are provided at both ends of one side of the piston rod (2). A sliding rod (5) is slidably installed in the sliding hole (4). The sliding rod (5) and the sliding hole (4) are connected by a spring (6). Two square grooves (7) are provided on one side of the side pin (1). The square grooves (7) and the insertion hole (3) are connected by a through hole (8). The through hole (8) and the sliding rod (5) are slidably installed. A protective component (9) is provided on the square groove (7).
2. The easy-to-disassemble side pin structure of claim 1, wherein: The end of the slide bar (5) away from the spring (6) is provided with a rubber layer.
3. The easy-to-disassemble side pin structure of claim 1, wherein: The protective component (9) includes a sealing plate (901) which is inserted into a square groove (7).
4. The easy-to-disassemble side pin structure according to claim 3, characterized in that: The inner wall of the square groove (7) is equipped with a magnetic frame (902) that magnetically attracts the sealing plate (901).
5. The easy-to-disassemble side pin structure of claim 3, wherein: A plug rod (903) is installed on one side of the sealing plate (901), and a slot (904) is provided on the slide rod (5) to slide and connect with the plug rod (903).
6. The easy-to-disassemble side pin structure of claim 3, wherein: Two pull rods (905) are provided on the side of the sealing plate (901) away from the insert rod (903).
Citation Information
Patent Citations
Safety side pin for die connection
CN216656058U