A mold for producing a silica gel workpiece

Abstract

The utility model discloses a silica gel workpiece production mould belongs to silica gel forming field, including fixed mould and movable mould, the movable mould is equipped with the convenient blanking mechanism for the side of silica gel workpiece and is convenient for uncovering workpiece of top -opening, the movable mould is equipped with the workpiece anti -tearing mechanism for reducing the workpiece stress when uncovering workpiece, avoid the workpiece tearing of stress too big, the convenient blanking mechanism includes drive assembly no.

Description

Technical Field

[0001] This utility model relates to the field of silicone molding, specifically to a silicone workpiece production mold. Background Technology

[0002] Silicone workpiece production molds are tools used to manufacture precision silicone parts. They typically consist of upper and lower molds, and are made from high-temperature resistant materials (such as steel or aluminum alloy). The molds solidify liquid silicone under high temperature and pressure, making them suitable for producing small O-rings, seals, buttons, gaskets, and other precision silicone parts. They are characterized by their compact structure, short molding cycle, dimensional stability, and ability to accurately replicate complex details, making them widely used in small-batch production in industries such as electronics, medical, and automotive.

[0003] Chinese patent CN218504996U discloses a cost-saving silicone vulcanizing mold, including a lower mold and an upper mold. The lower mold includes a lower mold base, with an outer frame protruding from the periphery of the lower mold base, forming a molding cavity. At least two bosses protrude upwards from the bottom surface of the molding cavity. The upper mold is vertically movable and positioned directly above the lower mold. The upper mold is flat and adapted to the molding cavity. The outer frame protruding from the periphery of the lower mold base, forming the molding cavity, limits the silicone material, controlling the size and shape of the molded silicone. The at least two bosses protruding upwards from the bottom surface of the molding cavity control the thickness of the remaining silicone material after molding, preventing excessive material usage and waste after cutting. Furthermore, it improves production efficiency from one-to-many output to one-to-many output. However, this device still has the following problems:

[0004] 1. After the mold is opened, the silicone adheres to the inner wall of the mold cavity due to vulcanization and needs to be peeled off manually. However, the mold is at a high temperature at this time, and it is inconvenient for the operator to remove the workpiece while wearing gloves, which affects work efficiency.

[0005] 2. When small workpieces are molded and removed from the mold cavity, there is a risk of tearing due to excessive tensile force at the weak points of the workpiece.

[0006] Based on this, this utility model designs a silicone workpiece production mold to solve the above problems. Utility Model Content

[0007] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a silicone workpiece production mold.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A mold for producing silicone workpieces includes a fixed mold and a moving mold;

[0010] The moving mold is equipped with a convenient unloading mechanism for pushing open the side of the silicone workpiece to facilitate the removal of the workpiece;

[0011] The moving mold is equipped with a workpiece anti-tear mechanism to reduce the stress on the workpiece when it is removed and to prevent the workpiece from tearing due to excessive stress.

[0012] The convenient unloading mechanism includes a drive assembly, a limit reset assembly, and an ejector assembly; the fixed mold, the moving mold, and the ejector assembly are all connected to the drive assembly; the moving mold and the ejector assembly are all connected to the limit reset assembly; the drive assembly is used to drive the ejector assembly to move, the limit reset assembly is used to reset the drive and ejector assembly and limit the movement of the ejector assembly, and the ejector assembly is used to eject the side of the silicone workpiece.

[0013] Furthermore, the drive assembly includes a fixed inclined block and a transmission inclined block; the lower end of the fixed inclined block is fixedly connected to the upper end of the fixed mold, and the transmission inclined block is slidably connected to the moving mold; the transmission inclined block is connected to the ejector assembly.

[0014] Furthermore, the limiting and resetting assembly includes a guide rod and a reset spring; a groove is provided at the lower end of the moving mold; the guide rod is located at the inner top of the groove and is slidably connected to the moving mold for limiting; the lower end of the guide rod is connected to the ejector assembly; the reset spring is sleeved on the outside of the guide rod; the upper end of the reset spring is fixedly connected to the moving mold; and the lower end of the reset spring is connected to the ejector assembly.

[0015] Furthermore, the top material assembly includes a top material transmission block and a top material block; the top material transmission block is slidably connected to the side wall of the first slide groove; the lower ends of the guide rod and the return spring are both fixedly connected to the top material transmission block; the lower end of the top material transmission block is fixedly connected to the top material block; the left end of the transmission inclined block is slidably connected to the top material transmission block through a dovetail slider and a dovetail slide groove.

[0016] Furthermore, the workpiece anti-tear mechanism includes a workpiece forming component, a forming block limiting component, and a forming block driving component; the moving mold and the forming block limiting component are both connected to the workpiece forming component; the moving mold and the forming block driving component are both connected to the forming block limiting component; the workpiece forming component is used to form the workpiece; the forming block limiting component is used to limit the workpiece forming component; and the forming block driving component is used to drive the workpiece forming component to move relative to the moving mold.

[0017] Furthermore, multiple sets of workpiece forming components are distributed at equal intervals front to back, and each set of workpiece forming components includes multiple workpiece forming components distributed at equal intervals left to right.

[0018] Furthermore, the workpiece forming assembly includes a forming block; the lower end of the moving mold has an upper mold cavity, and the upper end of the fixed mold has a lower mold cavity; the forming block is slidably connected to the moving mold through the inner top surface of the upper mold cavity; the forming block is connected to the forming block limiting assembly.

[0019] Furthermore, the molding block limiting component includes a sliding block; the lower end of the sliding block is fixedly connected to the molding block, and a second sliding groove is provided inside the moving mold; the sliding block is slidably connected to the moving mold through the second sliding groove; the sliding block is connected to the molding block driving component.

[0020] Compared with the prior art, the advantages of this utility model are as follows: 1. This utility model can realize the automatic opening of the side of the molded workpiece in the mold cavity through a convenient feeding mechanism, which makes it easier for operators to remove the workpiece and improves work efficiency.

[0021] 2. This utility model can reduce the stress on the workpiece when it is removed by means of a workpiece anti-tear mechanism, thereby reducing the risk of workpiece tearing. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This utility model relates to a three-dimensional mold for producing silicone workpieces. Figure 1 ;

[0024] Figure 2 This is a front view of a silicone workpiece production mold according to the present invention;

[0025] Figure 3 This is a right view of a silicone workpiece production mold according to the present invention;

[0026] Figure 4 This utility model relates to a three-dimensional mold for producing silicone workpieces. Figure 2 ;

[0027] Figure 5 For along Figure 3 3D view after a portion is removed along the AA direction:

[0028] Figure 6 for Figure 5 Enlarged view of point A in the middle.

[0029] The labels in the diagram represent:

[0030] 1. Fixed mold; 2. Moving mold; 3. Convenient unloading mechanism; 31. Drive component one; 311. Fixed inclined block; 312. Transmission inclined block; 32. Limit and reset component; 321. Guide rod; 322. Reset spring; 323. Slide one; 33. Ejector component; 331. Ejector transmission block; 332. Ejector block; 4. Workpiece anti-tear mechanism; 41. Workpiece forming component; 411. Upper mold cavity; 412. Lower mold cavity; 413. Forming block; 42. Forming block limit component; 421. Slide two; 422. Sliding block; 43. Forming block drive component; 431. Drive block; 432. Fixed plate; 433. Slide three. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0032] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0033] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-6 A silicone workpiece production mold, comprising a fixed mold 1 and a moving mold 2;

[0034] The moving mold 2 is equipped with a convenient unloading mechanism 3 for opening the side of the silicone workpiece to facilitate the removal of the workpiece;

[0035] The moving mold 2 is equipped with a workpiece anti-tear mechanism 4, which is used to reduce the stress on the workpiece when it is peeled off and to prevent the workpiece from being torn by excessive stress.

[0036] like Figure 2 , Figure 3 and Figure 5 As shown, the convenient unloading mechanism 3 includes a drive assembly 31, a limit reset assembly 32, and an ejector assembly 33; the fixed mold 1, the moving mold 2, and the ejector assembly 33 are all connected to the drive assembly 31; the moving mold 2 and the ejector assembly 33 are all connected to the limit reset assembly 32; the drive assembly 31 is used to drive the ejector assembly 33 to move, the limit reset assembly 32 is used to reset the drive ejector assembly 33 and limit the movement of the ejector assembly 33, and the ejector assembly 33 is used to eject the side of the silicone workpiece;

[0037] In this invention, the operator places the raw material between the fixed mold 1 and the moving mold 2 using the workpiece anti-tear mechanism 4. Then, the fixed mold 1 and the moving mold 2 close together to form the workpiece. When the fixed mold 1 and the moving mold 2 close, the drive component 31 drives the ejector component 33 to move upward under the limit of the limit reset component 32, so that the lower side of the ejector component 33 is flush with the lower side of the moving mold 2, which does not affect the forming of the workpiece. Then, the fixed mold 1 and the moving mold 2 open. After the mold opens, the limit reset component 32 drives the ejector component 33 to reset and eject the part of the workpiece that is in contact with the moving mold 2, making it easier for the operator to peel off the workpiece and improve work efficiency. At the same time, the workpiece anti-tear mechanism 4 reduces the stress on the workpiece when peeling it off, reducing the risk of workpiece tearing.

[0038] The drive assembly 31 includes a fixed inclined block 311 and a transmission inclined block 312; the lower end of the fixed inclined block 311 is fixedly connected to the upper end of the fixed mold 1, and the transmission inclined block 312 is slidably connected to the moving mold 2; the transmission inclined block 312 is connected to the ejector assembly 33.

[0039] The limiting and resetting assembly 32 includes a guide rod 321 and a resetting spring 322; a groove 323 is provided at the lower end of the moving mold 2; the guide rod 321 is located at the inner top of the groove 323 and is slidably connected to the moving mold 2 for limiting; the lower end of the guide rod 321 is connected to the ejector assembly 33; the resetting spring 322 is sleeved on the outside of the guide rod 321; the upper end of the resetting spring 322 is fixedly connected to the moving mold 2; and the lower end of the resetting spring 322 is connected to the ejector assembly 33.

[0040] The top material assembly 33 includes a top material transmission block 331 and a top material block 332; the top material transmission block 331 is slidably connected to the side wall of the slide groove 323; the lower ends of the guide rod 321 and the return spring 322 are fixedly connected to the top material transmission block 331; the lower end of the top material transmission block 331 is fixedly connected to the top material block 332; the left end of the transmission inclined block 312 is slidably connected to the top material transmission block 331 through a dovetail slider and a dovetail slide groove.

[0041] In this invention, the operator places the raw material between the fixed mold 1 and the moving mold 2 using the workpiece anti-tear mechanism 4. Then, the fixed mold 1 and the moving mold 2 close together to form the workpiece. When the fixed mold 1 and the moving mold 2 close, the upper inclined surface of the fixed inclined block 311 abuts against the right inclined surface of the transmission inclined block 312. At this time, the fixed inclined block 311 pushes the ejector transmission block 331 and the ejector block 332 to slide upwards to the upper limit inside the slide groove 323 through the transmission inclined block 312. After the fixed mold 1 and the moving mold 2 close, the bottom surface of the ejector block 332 is flush with the bottom surface of the moving mold 2, which does not affect the silicone molding. After the workpiece is formed, the fixed mold 1 and the moving mold 2 open. After the mold opens, the return spring 322 drives the ejector transmission block 331 and the ejector block 332 to slide downwards under the limit of the guide rod 321 and the slide groove 323. The lower end of the ejector block 332 pushes the silicone overflow point away from the bottom surface of the moving mold 2, making it easier for the operator to remove the workpiece.

[0042] like Figure 2 and Figure 5 As shown, the workpiece anti-tear mechanism 4 includes a workpiece forming component 41, a forming block limiting component 42, and a forming block driving component 43; the moving mold 2 and the forming block limiting component 42 are both connected to the workpiece forming component 41; the moving mold 2 and the forming block driving component 43 are both connected to the forming block limiting component 42; the workpiece forming component 41 is used to form the workpiece; the forming block limiting component 42 is used to limit the workpiece forming component 41; and the forming block driving component 43 is used to drive the workpiece forming component 41 to move relative to the moving mold 2.

[0043] Multiple sets of workpiece forming components 41 are distributed at equal intervals in front and behind, and each set of workpiece forming components 41 includes multiple workpiece forming components 41 distributed at equal intervals in the left and right.

[0044] The workpiece forming assembly 41 includes a forming block 413; the lower end of the moving mold 2 is provided with an upper mold cavity 411, and the upper end of the fixed mold 1 is provided with a lower mold cavity 412; the forming block 413 is slidably connected to the moving mold 2 through the inner top surface of the upper mold cavity 411; the forming block 413 is connected to the forming block limiting assembly 42.

[0045] The molding block limiting component 42 includes a sliding block 422; the lower end of the sliding block 422 is fixedly connected to the molding block 413, and the interior of the moving mold 2 is provided with a second sliding groove 421; the sliding block 422 is slidably connected to the moving mold 2 through the second sliding groove 421; the sliding block 422 is connected to the molding block driving component 43.

[0046] The molding block driving assembly 43 includes a driving block 431 and a fixing plate 432; the upper end of the moving mold 2 is provided with a sliding groove 433; the area of ​​the sliding groove 433 is smaller than that of the sliding groove 421; the driving block 431 is slidably connected to the moving mold 2 through the sliding groove 433; the lower end of the driving block 431 is fixedly connected to the sliding block 422; the upper end of the driving block 431 is fixedly connected to the fixing plate 432.

[0047] In this invention, the operator places the raw material on the upper mold cavity 411 and lower mold cavity 412 between the fixed mold 1 and the moving mold 2. Then, the external vulcanizing molding device drives the moving mold 2 downward through the fixed plate 432, the driving block 431, and the sliding block 422. After the lower end of the moving mold 2 abuts against the upper end of the fixed mold 1, and the upper mold cavity 411 and the lower mold cavity 412 are aligned, the fixed plate 432 pushes the sliding block 422 downward along the slide groove 421 through the driving block 431. At the same time, the sliding block 422 drives the molding block 413 to slide into the upper mold cavity 411 and the lower mold cavity 412. Then, the upper mold cavity 411... 1. The lower mold cavity 412 and the forming block 413 cooperate to form the workpiece. After forming, the external vulcanizing molding device drives the sliding block 422 to slide upward along the upper limit of the slide groove 421 through the fixed plate 432 and the driving block 431. The sliding block 422 drives the forming block 413 to slide upward and reset. After the forming block 413 is pulled out from the workpiece, the fixed plate 432, the driving block 431 and the sliding block 422 drive the moving mold 2 to move upward to open the mold. When the operator removes the workpiece, the forming block 413 does not contact the workpiece, reducing the clamping force on the workpiece generated by the cooperation between the forming block 413 and the lower mold cavity 412, and reducing the risk of workpiece tearing.

[0048] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A silicone workpiece production mold, comprising a fixed mold (1) and a moving mold (2), characterized in that: It also includes a convenient unloading mechanism (3) and a workpiece anti-tear mechanism (4); The moving mold (2) is equipped with a convenient unloading mechanism (3) for opening the side of the silicone workpiece to facilitate the removal of the workpiece; The moving mold (2) is equipped with a workpiece anti-tear mechanism (4) to reduce the stress on the workpiece when it is peeled off and to prevent the workpiece from being torn by excessive stress. The convenient unloading mechanism (3) includes a drive assembly (31), a limit reset assembly (32), and an ejector assembly (33); the fixed mold (1), the moving mold (2), and the ejector assembly (33) are all connected to the drive assembly (31); the moving mold (2) and the ejector assembly (33) are all connected to the limit reset assembly (32); the drive assembly (31) is used to drive the ejector assembly (33) to move, the limit reset assembly (32) is used to reset the drive ejector assembly (33) and limit the movement of the ejector assembly (33), and the ejector assembly (33) is used to eject the side of the silicone workpiece.

2. The silicone workpiece production mold according to claim 1, characterized in that, The drive assembly (31) includes a fixed inclined block (311) and a transmission inclined block (312); the lower end of the fixed inclined block (311) is fixedly connected to the upper end of the fixed mold (1), and the transmission inclined block (312) is limited and slidably connected to the moving mold (2); the transmission inclined block (312) is connected to the ejector assembly (33).

3. The silicone workpiece production mold according to claim 2, characterized in that, The limiting and resetting assembly (32) includes a guide rod (321) and a resetting spring (322); the lower end of the moving mold (2) is provided with a slide groove (323); the guide rod (321) is located at the inner top of the slide groove (323) and is slidably connected to the moving mold (2) for limiting; the lower end of the guide rod (321) is connected to the ejector assembly (33); the resetting spring (322) is sleeved on the outside of the guide rod (321); the upper end of the resetting spring (322) is fixedly connected to the moving mold (2); and the lower end of the resetting spring (322) is connected to the ejector assembly (33).

4. The silicone workpiece production mold according to claim 3, characterized in that, The top material assembly (33) includes a top material transmission block (331) and a top material block (332); the top material transmission block (331) is slidably connected to the side wall of the slide groove (323); the lower ends of the guide rod (321) and the return spring (322) are fixedly connected to the top material transmission block (331); the lower end of the top material transmission block (331) is fixedly connected to the top material block (332); the left end of the transmission inclined block (312) is slidably connected to the top material transmission block (331) through a dovetail slider and a dovetail slide groove.

5. The silicone workpiece production mold according to claim 1, characterized in that, The workpiece anti-tear mechanism (4) includes a workpiece forming component (41), a forming block limiting component (42), and a forming block driving component (43); the moving mold (2) and the forming block limiting component (42) are both connected to the workpiece forming component (41); the moving mold (2) and the forming block driving component (43) are both connected to the forming block limiting component (42); the workpiece forming component (41) is used to form the workpiece; the forming block limiting component (42) is used to limit the workpiece forming component (41), and the forming block driving component (43) is used to drive the workpiece forming component (41) to move relative to the moving mold (2).

6. The silicone workpiece production mold according to claim 5, characterized in that, Multiple workpiece forming components (41) are distributed at equal intervals in front and behind, and each set of workpiece forming components (41) includes multiple workpiece forming components (41) distributed at equal intervals in the left and right.

7. The silicone workpiece production mold according to claim 6, characterized in that, The workpiece forming assembly (41) includes a forming block (413); the lower end of the moving mold (2) is provided with an upper mold cavity (411), and the upper end of the fixed mold (1) is provided with a lower mold cavity (412); the forming block (413) is slidably connected to the moving mold (2) through the inner top surface of the upper mold cavity (411); the forming block (413) is connected to the forming block limiting assembly (42).

8. The silicone workpiece production mold according to claim 7, characterized in that, The molding block limiting component (42) includes a sliding block (422); the lower end of the sliding block (422) is fixedly connected to the molding block (413), and the moving mold (2) has a second sliding groove (421) inside; the sliding block (422) is limited and slidably connected to the moving mold (2) through the second sliding groove (421); the sliding block (422) is connected to the molding block driving component (43).

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