A hidden torsion spring coil structure
By using a concealed torsion spring coil structure, the problems of pelletizing accuracy and adhesion in traditional plastic pelletizers are solved, achieving stability and convenience in the pelletizing process, and improving pelletizing quality and processing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHUJI SANA SPRING CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-06-19
AI Technical Summary
Traditional plastic pelletizers have difficulty in accurately controlling pellet size and speed during the pelletizing process, resulting in unstable pellet quality. Furthermore, the cut plastic pellets are prone to sticking together, affecting storage and transportation, and increasing separation difficulty and cost.
The concealed torsion spring coil structure, through the coordinated design of the mounting base, limiting protective components and the cover body, achieves stable spacing and protection of the torsion spring coil, reduces friction and wear, and the connection design of the guide post and nut facilitates assembly and disassembly, ensuring installation stability and precise positioning.
It improves the precision control of the pelleting process, reduces adhesion, enhances the stability of pelleting quality and the convenience of subsequent processing, and reduces separation costs.
Smart Images
Figure CN224374564U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic processing equipment technology, specifically to a concealed torsion spring coil structure. Background Technology
[0002] In the plastics processing flow, the concealed torsion spring coil structure is a core piece of equipment that cuts plastic extrusions into granules of specific sizes and controls the granulation rate.
[0003] Currently, traditional plastic pelletizers have shortcomings in control precision, making it difficult to accurately control pellet size and speed, resulting in inconsistent pellet quality and adversely affecting subsequent plastic product production. Furthermore, during the pelletizing process, the cut plastic pellets often stick together. After cutting the plastic strips, the freshly cut pellets are at a high temperature, and some plastics are inherently sticky. Under gravity and mutual compression, they easily stick together, severely impacting subsequent storage and transportation, and increasing the cost and difficulty of separating the sticky pellets in later processing steps. Therefore, this invention proposes a concealed torsion spring coil structure to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to provide a concealed torsion spring coil structure to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a concealed torsion spring coil structure, including a mounting base, wherein the mounting base is provided with a cavity, and a torsion spring coil is integrally connected in the cavity, wherein the connecting part at the end of the torsion spring coil extends to the outside of the cavity;
[0006] The mounting base is also provided with a limiting protective component, which includes an auxiliary partition plate. Side fixing plates extend from both ends of the auxiliary partition plate, and the side fixing plates at both ends of the auxiliary partition plate are positioned in the slots of the mounting base by pins.
[0007] The mounting base is provided with a cover body, and the auxiliary spacer plate abuts against one end of the torsion spring coil, and cooperates with the cover body to protect the torsion spring coil inside the mounting base.
[0008] Preferably, the surface of the auxiliary spacer that abuts against the torsion spring coil is provided with a buffer layer, which is used to reduce the wear of the auxiliary spacer on the torsion spring coil.
[0009] Preferably, a guide post extends from one end of the auxiliary spacer, the end of the guide post away from the auxiliary spacer is machined with external threads, and a nut is provided at the threaded end of the guide post.
[0010] Preferably, the inner diameter of the guide post is configured to fit the outer diameter of the torsion spring coil.
[0011] Preferably, the end side of the shield body is provided with a notch, the width of which is slightly wider than the connecting part at one end of the torsion spring coil.
[0012] Preferably, the mounting base has positioning plates on both sides, and the positioning plates are integrally formed with the mounting base.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] (1) By cooperating with the cavity of the mounting base, the cover body and the auxiliary spacer of the limiting protection component, the torsion spring coil can be hidden at intervals. At the same time, the surface of the auxiliary spacer that abuts against the torsion spring coil is provided with a buffer layer, which can reduce the friction and wear between the two and further ensure the stability of the torsion spring coil performance.
[0015] (2) The side plate of the limiting protective component can be quickly positioned in the slot of the mounting base by means of a pin, thereby fixing the auxiliary partition plate and stabilizing the limiting torsion spring ring. The threaded connection design of the guide post and nut facilitates the assembly and disassembly of the auxiliary partition plate with other components. The positioning plates integrated on both sides of the mounting base provide precise positioning for the installation of the entire structure, making the installation process more convenient and efficient, and ensuring the structural stability after installation. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0017] Figure 2 This is a schematic diagram of the installation structure of the torsion spring coil of this utility model.
[0018] Figure 3 This is a schematic diagram of the installation structure of the limiting and protective component of this utility model.
[0019] Figure 4 This is a schematic diagram of the auxiliary spacer structure of this utility model.
[0020] In the diagram: 1. Mounting base; 11. Positioning plate; 12. Slot; 13. Pin; 14. Frame body; 141. Notch; 2. Torsion spring coil; 21. Connecting part; 3. Limiting and protective component; 31. Auxiliary partition plate; 32. Side fixing plate; 33. Guide post; 34. Nut. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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 Figures 1 to 4 This utility model provides a technical solution: a concealed torsion spring coil structure, including a mounting base 1, the mounting base 1 having a cavity groove, a torsion spring coil 2 integrally connected within the cavity groove, and a connecting portion 21 at the end of the torsion spring coil 2 extending to the outside of the cavity groove; a limiting protective member 3 is also provided through the mounting base 1, the limiting protective member 3 including an auxiliary spacer plate 31, side fixing plates 32 extending from both ends of the auxiliary spacer plate 31, the side fixing plates 32 at both ends of the auxiliary spacer plate 31 being positioned in the slots 12 of the mounting base 1 by pins 13; a cover body 14 is provided on the mounting base 1, the auxiliary spacer plate 31 and the torsion spring coil 2 are connected to the cavity groove 12. One end of the spring coil 2 abuts against the other end, and together with the cover body 14, the torsion spring coil 2 is protected within the mounting base 1. The surface of the auxiliary spacer plate 31 that abuts against the torsion spring coil 2 is provided with a buffer layer. The buffer layer is used to reduce the wear of the auxiliary spacer plate 31 on the torsion spring coil 2. Through the cooperation of the cavity of the mounting base 1, the cover body 14, and the auxiliary spacer plate 31 of the limiting protection component 3, the torsion spring coil 2 can be hidden at intervals. At the same time, the buffer layer on the surface of the auxiliary spacer plate 31 that abuts against the torsion spring coil 2 can reduce the friction and wear between the two, further ensuring the stable performance of the torsion spring coil 2.
[0023] Please see Figures 1 to 4 A guide post 33 extends from one end of the auxiliary spacer 31. The end of the guide post 33 away from the auxiliary spacer 31 is machined with external threads. A nut 34 is provided at the threaded end of the guide post 33. The design of the nut 34 makes it possible to disassemble the auxiliary spacer 31 and the guide post 33 without complicated tools. The parts can be separated simply by rotating the nut 34, which facilitates quick inspection and replacement of worn auxiliary spacer 31.
[0024] Please see Figures 1 to 4 The inner diameter of the guide post 33 and the outer diameter of the torsion spring coil 2 are fitted together. This fit allows the torsion spring coil 2 to move precisely along the inner wall of the guide post 33 during extension, contraction or torsion, thus avoiding loss of elasticity due to offset or shaking.
[0025] Please see Figures 1 to 4The end of the shield body 14 is provided with a notch 141. The width of the notch 141 is slightly wider than the connecting part 21 at one end of the torsion spring coil 2. In use, since the connecting part 21 of the torsion spring coil 2 needs to transmit torque by rotation or swing, the width of the notch 141 provides sufficient space for movement, so as to avoid the shield body 14 from physically blocking the movement of the connecting part 21 and ensure that the release of the elastic potential energy of the torsion spring is not hindered.
[0026] Please see Figures 1 to 4 The mounting base 1 has positioning plates 11 on both sides. The positioning plates 11 are integrated with the mounting base 1. Since the positioning plates 11 and the mounting base 1 are the same whole, there are no welding or splicing gaps. The shear force, tensile force and other loads on the mounting base 1 can be directly transmitted, avoiding the risk of loosening and breakage that may occur in traditional split structures.
[0027] In use, first install the torsion spring coil 2 into the cavity of the mounting base 1. Since the torsion spring coil 2 and the cavity of the mounting base 1 are integrally connected, ensure its initial position is stable. At the same time, extend the connecting part 21 at the end of the torsion spring coil 2 to the outside of the cavity for connection with external components. Pass the auxiliary spacer plate 31 of the limiting protection member 3 through the mounting base 1, so that the side fixing plates 32 on both ends of the auxiliary spacer plate 31 correspond to the slots 12 of the mounting base 1. Then, use the pin 13 to pass through the side fixing plates 32 and the slots 12 to fix the limiting protection member 3 in the mounting base 1. At this time, the auxiliary spacer plate 31 abuts against one end of the torsion spring coil 2, which plays a preliminary limiting role for the torsion spring coil 2. Since the surface of the auxiliary spacer plate 31 that abuts against the torsion spring coil 2 is provided with a buffer layer, it can avoid the auxiliary spacer plate 31 from causing wear to the torsion spring coil 2. The guide post 33 extending from one end of the auxiliary partition plate 31 is connected to other components. The external thread of the guide post 33 away from the auxiliary partition plate 31 is tightened with the nut 34 to achieve a stable connection between the auxiliary partition plate 31 and the external components. At the same time, the inner diameter of the guide post 33 is adapted to the outer diameter of the torsion spring coil 2, which can guide the movement of the torsion spring coil 2. The cover body 14 is installed on the mounting base 1. The notch 141 on the end side of the cover body 14 is slightly wider than the connecting part 21 at one end of the torsion spring coil 2. This ensures that the connecting part 21 can extend normally and can also work with the auxiliary partition plate 31 to space the torsion spring coil 2 within the mounting base 1, forming a hidden protective structure. The entire hidden torsion spring coil 2 structure is installed on the target equipment or component through the positioning plates 11 integrally set on both sides of the mounting base 1, completing the positioning and fixing of the overall structure.
[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A concealed torsion spring coil structure, comprising a mounting base (1), wherein the mounting base (1) has a cavity, and a torsion spring coil (2) is integrally connected within the cavity, wherein the connecting portion (21) at the end of the torsion spring coil (2) extends to the outside of the cavity, characterized in that: The mounting base (1) is also provided with a limiting protective component (3), which includes an auxiliary partition plate (31). The auxiliary partition plate (31) has side fixing plates (32) extending from both ends. The side fixing plates (32) at both ends of the auxiliary partition plate (31) are positioned in the slots (12) of the mounting base (1) by pins (13). The mounting base (1) is provided with a cover body (14), and the auxiliary spacer plate (31) abuts against one end of the torsion spring coil (2) and cooperates with the cover body (14) to protect the torsion spring coil (2) inside the mounting base (1).
2. The hidden torsion spring and coil structure of claim 1, wherein: The auxiliary spacer plate (31) has a buffer layer on the surface that abuts against the torsion spring coil (2). The buffer layer is used to reduce the wear of the auxiliary spacer plate (31) on the torsion spring coil (2).
3. The hidden torsion spring and coil structure of claim 2, wherein: One end of the auxiliary spacer plate (31) extends into a guide post (33), and the end of the guide post (33) away from the auxiliary spacer plate (31) is machined with external threads. The threaded end of the guide post (33) is fitted with a nut (34).
4. The concealed torsion spring coil structure according to claim 3, characterized in that: The inner diameter of the guide post (33) is adapted to fit the outer diameter of the torsion spring coil (2).
5. The concealed torsion spring coil structure according to claim 1, characterized in that: The end of the shield body (14) is provided with a notch (141), the width of which is slightly wider than the connecting part (21) at one end of the torsion spring coil (2).
6. The concealed torsion spring coil structure according to claim 1, characterized in that: The mounting base (1) is provided with positioning plates (11) on both sides, and the positioning plates (11) are integrally formed with the mounting base (1).