Auxiliary ejection jig for demolding of silica gel piece
By designing a silicone part demoulding auxiliary ejection jig and using rollers and guide grooves to achieve rapid positioning and disassembly, the problem of silicone part demoulding difficulty was solved, production efficiency was improved and labor costs were reduced.
Patent Information
- Application Number
- CN202422786228.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-15
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-15
Smart Images

Figure CN223478113U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of silicone product demolding technology, and in particular to an auxiliary ejection fixture for demolding silicone parts. Background Technology
[0002] Commonly used silicone molds include an upper mold, a middle mold, and a lower mold. After molding, the upper mold, middle mold, and lower mold open to each other, and the silicone part moves together with the middle mold.
[0003] Because silicone material itself has high viscosity, this results in a strong adhesion between the molded silicone product and the intermediate mold, making demolding difficult. Therefore, manual demolding of the molded silicone parts is required during the production of silicone parts. Currently, most small silicone parts use a multi-cavity mold design, and manual demolding is time-consuming, thus reducing production efficiency and increasing labor costs.
[0004] Therefore, in view of the shortcomings of the existing technology, it is necessary to design a silicone part demolding auxiliary ejection fixture to solve the above problems.
[0005] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solution of this utility model and facilitating the understanding of those skilled in the art. It should not be assumed that the above content is known to those skilled in the art simply because it has been described in the background section of this utility model. Utility Model Content
[0006] To overcome the shortcomings of the prior art, the present invention discloses a silicone part demolding auxiliary ejection fixture, which is used to assist silicone parts in rapid demolding and solves the problems of difficult demolding and high labor costs in the current production of silicone parts.
[0007] This utility model discloses a silicone part demolding auxiliary ejection fixture, including a support plate and several demolding ejector pins. The support plate is movably connected to the lower template of the silicone part molding die. The demolding ejector pins are detachably mounted on the support plate and can be quickly adjusted according to the number of silicone parts to be molded, ensuring that the demolding ejector pins correspond one-to-one with the silicone parts on the intermediate template. By simply controlling the intermediate template to descend a certain height, all the silicone parts on the intermediate template can be ejected by the demolding ejector pins.
[0008] Preferred technical solution: The inner side of the lower template is provided with a guide groove, and the two sides of the support plate are provided with rollers. The outer side of the rollers is slidably connected to the guide groove. The support plate can be quickly assembled and disassembled in the mold by means of the rollers and the guide groove.
[0009] Preferred technical solution: The guide slide is connected with a V-shaped groove for correcting the relative position of the support plate and the lower template, so that the support plate and the intermediate template can be positioned quickly and accurately, avoiding collision damage between the demolding ejector and the intermediate template during demolding.
[0010] Preferred technical solution: The end of the support plate is provided with a handle for pushing and pulling, which reduces the difficulty of the operation of the support plate entering and exiting the mold.
[0011] Preferred technical solution: The lower end of the support plate is provided with a clearance groove to allow the mold core at the lower template to pass.
[0012] Preferred technical solution: The upper end of the ejector pin is provided with an elastic material head to prevent damage to the silicone part when the ejector pin pushes it out.
[0013] Preferred technical solution: The support plate is also provided with a mounting plate; the lower end of the demolding ejector is provided with a mounting base; the support plate and the lower template forming cavity are provided with a placement groove, the demolding ejector is detachably set in the placement groove, the mounting plate is provided with a limiting hole corresponding to the demolding ejector, the lower end face of the mounting plate is detachably connected to the upper end face of the support plate, and the limiting hole is sleeved on the demolding ejector to restrict the mounting base in the placement groove, which facilitates the disassembly and maintenance of the demolding ejector.
[0014] Preferred technical solution: The outer diameter of the ejector pin gradually decreases from bottom to top, reducing the risk of collision between the top of the ejector pin and the intermediate template, while avoiding the formation of a sealed cavity between the ejector pin and the intermediate template.
[0015] Due to the application of the above technical solution, the beneficial effects of this utility model compared with the prior art are as follows:
[0016] This utility model discloses an auxiliary ejection fixture for demolding silicone parts. It is movably connected to the lower template and can simultaneously eject and demold multiple silicone parts on the middle template, replacing the traditional manual demolding operation, reducing labor costs, and improving the demolding efficiency of silicone parts. The ejection fixture is quickly assembled, disassembled, and positioned using a slide rail and V-groove, which improves the assembly, disassembly, and positioning efficiency of the ejection fixture and further improves the demolding efficiency of silicone parts. Attached Figure Description
[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0018] Figure 1This is an exploded view of a silicone part demolding auxiliary ejection fixture according to the present invention;
[0019] Figure 2 This is an exploded view of the support plate in this utility model;
[0020] Figure 3 This is a schematic diagram of the demolding ejector bar in this utility model;
[0021] Figure 4 This is a schematic diagram of the structure of the lower template in this utility model.
[0022] In the above attached diagrams, 1. Support plate; 11. Roller; 12. Handrail; 13. Clearance groove; 14. Mounting pressure plate; 15. Placement groove; 16. Limiting hole; 2. Demolding ejector; 21. Ejector head; 22. Mounting base; 3. Lower template; 31. Guide slide; 32. V-groove. Detailed Implementation
[0023] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.
[0024] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be used interchangeably where appropriate for the description of embodiments of this application herein. Furthermore, the terms "comprising" and "having," and their synonyms, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0025] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing the present invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.
[0026] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.
[0027] Furthermore, the terms "installation," "setting," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0028] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0029] Example 1:
[0030] like Figure 1 As shown, this utility model discloses a silicone part demolding auxiliary ejection fixture, including a support plate 1 and several ejector pins 2. The support plate 1 is movably connected to the lower template 3 of the silicone part molding die, and the ejector pins 2 are detachably mounted on the support plate 1. The main components will be described in detail below:
[0031] like Figure 1 and Figure 2 As shown, the support plate 1 has two rollers 11 on each side, the end of the support plate 1 has a handle 12 for pushing and pulling, the lower end of the support plate 1 has a clearance groove 13, the upper end of the support plate 1 has a mounting plate 14, the mounting plate 14 has a limiting hole 16 corresponding to the demolding ejector 2, and the support plate 1 has a placement groove 15 corresponding to the forming cavity of the lower template 3.
[0032] like Figure 1 , Figure 2 and Figure 3 As shown, the upper end of the ejector pin 2 is provided with an elastic material head 21, and the lower end of the ejector pin 2 is provided with a mounting base 22. The mounting base 22 is detachably set in the mounting groove 15; the limiting hole 16 is sleeved on the ejector pin 2 to restrict the mounting base 22 in the mounting groove 15.
[0033] like Figure 1 , Figure 2 and Figure 4As shown, the inner side of the lower template 3 is provided with a guide groove 31, and the front and rear ends of the guide groove 31 are connected to V-shaped grooves 32 for correcting the relative position of the support plate 1 and the lower template 3; both the guide groove 31 and the V-shaped grooves 32 are slidably connected to the outer side of the rollers 11. It should be noted that the number of V-shaped grooves 32 is greater than or equal to the number of rollers 11, ensuring that all rollers 11 are located at the bottom of the corresponding V-shaped grooves 32 during positioning, thereby ensuring the positioning accuracy of the demolding ejector 2 and the forming cavity on the intermediate template.
[0034] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the operation method and principle of the silicone part demolding auxiliary ejection fixture of this utility model are as follows: After the mold is opened, the roller 11 on the support plate 1 pushes it into the mold along the guide groove 31 until the roller 11 enters the bottom of the V-groove 32 for positioning. At this time, the demolding ejector 2 installed on the support plate 1 is aligned with the silicone part on the intermediate template, and drives the intermediate template to descend to the upper end of the support plate 1. During this process, the ejector head 21 of the demolding ejector 2 gradually passes through the molding cavity on the intermediate template from bottom to top and ejects the silicone part in the molding cavity, thus completing the demolding of the silicone part. It can demold silicone parts in multiple molding cavities at one time, with high operation efficiency and low labor cost.
[0035] Example 2:
[0036] like Figure 1 and Figure 3 As shown, in order to further prevent the ejector pin 2 from colliding with the intermediate template, the outer diameter of the ejector pin 2 is designed to gradually decrease from bottom to top.
[0037] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.
Claims
1. A silicone part ejection fixture, comprising a support plate (1) and a plurality of ejector pins (2), wherein the support plate (1) is movably connected to the lower template (3) of the silicone part molding die, characterized in that: The demolding ejector (2) is detachably mounted on the support plate (1); the inner side of the side of the lower template (3) is provided with a guide groove (31), and the two sides of the support plate (1) are provided with rollers (11), the outer side of the rollers (11) is slidably connected to the guide groove (31); the guide groove (31) is connected with a V-shaped groove (32) for correcting the relative position of the support plate (1) and the lower template (3).
2. The silicone part demolding auxiliary ejection fixture according to claim 1, characterized in that: The end of the support plate (1) is provided with a handle (12) for pushing and pulling.
3. The silicone part demolding auxiliary ejection fixture according to claim 2, characterized in that: The lower end of the support plate (1) is provided with a clearance groove (13).
4. The silicone part demolding auxiliary ejection fixture according to claim 1, characterized in that: The upper end of the ejector pin (2) is provided with a top (21) made of elastic material.
5. The silicone part demolding auxiliary ejection fixture according to claim 1, characterized in that: The support plate (1) is also provided with a mounting plate (14); the lower end of the demolding ejector (2) is provided with a mounting base (22); the support plate (1) and the forming cavity of the lower template (3) are provided with a placement groove (15); the demolding ejector (2) is detachably placed in the placement groove (15); the mounting plate (14) is provided with a limiting hole (16) corresponding to the demolding ejector (2); the lower end face of the mounting plate (14) is detachably connected to the upper end face of the support plate (1); the limiting hole (16) is sleeved on the demolding ejector (2) to restrict the mounting base (22) in the placement groove (15).
6. The silicone part demolding auxiliary ejection fixture according to claim 5, characterized in that: The outer diameter of the ejector pin (2) gradually decreases from bottom to top.