Silica gel finger mold

Abstract

The utility model discloses a silica gel finger mold. The mold comprises a female mold, a male mold I, a male mold bracket and a male mold II, a plurality of convex positioning blocks are arranged at the upper end of the outer side of the female mold; the male mold I comprises a component I, a component II, a component III, a component IV and a component V which are detachable. A concave-convex structure used for forming the upper portion of a product is arranged on the upper portion of the first male die, a plurality of heating wire fixing columns used for winding heating wires and embedding the heating wires into the product are arranged at the bottom end of the first male die, and a smooth face used for conducting secondary forming on the lower portion of the product is arranged on the lower portion of the second male die. Dovetail guide rails are arranged on the side faces of the first assembly, and dovetail grooves matched with the dovetail guide rails are formed in the other assemblies, so that the assemblies can be longitudinally connected to the first assembly in an inserted mode. The mold has the advantages that the detachable male mold I enables demolding to be easier; the secondary processing can remove joint line flaws generated by the primary processing, so that the smoothness of the processed surface is higher, and the pre-embedded wire is more stably packaged in the silica gel material.

Description

Technical Field

[0001] The utility model relates to a mold, in particular to a silicone finger mold. Background Art

[0002] At present, common processes in the production of silicone products include hot pressing molding, injection molding, calendering molding, vacuum molding and drop molding. Drop molding refers to melting the silicone raw material by heating and then dripping it into the mold, and then cooling it to form it. This process is suitable for the production of small silicone products.

[0003] For example, the target product of the present invention, a silicone finger used on mechanical equipment, is produced using the injection molding process. However, its shape is relatively complex, and there are a certain number of inward protrusions at the connection with the equipment. The internal smoothness requirements are relatively high, and some cables need to be pre-embedded. Therefore, if one-piece molding is used, it will be difficult to demold, and if split production is used, defects will be generated due to the mold line. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide a silicone finger mold which can make the finished product easy to demould and has a highly smooth surface.

[0005] In order to solve the above technical problems, the silicone finger mold of the present invention includes a female mold, a male mold 1, a male mold bracket and a male mold 2. The upper end of the outer side of the female mold is provided with several raised positioning blocks. The male mold 1 includes detachable components 1, 2, 3, 4 and 5. The upper part of the male mold 1 is provided with a concave-convex structure for molding the upper part of the product, and the bottom end is provided with multiple heating wire fixing columns for winding the heating wire and pre-embedding it into the product. The lower part of the male mold 2 is provided with a smooth surface for secondary molding of the lower part of the product. The male mold 1 and the male mold 2 are connected in a replaceable manner below the male mold bracket, and the male mold bracket is connected above the female mold.

[0006] Each of the positioning blocks, each component of the male mold 1 and the top of the male mold 2 are provided with threaded holes, and the male mold bracket is provided with through holes matching the threaded holes. The connection between the male mold 1, the male mold 2, the male mold bracket and the female mold is a threaded connection.

[0007] The first component is a column with a square cross section, and dovetail guide rails are arranged on the four sides of the column.

[0008] Component 2, component 3, component 4 and component 5 are all provided with dovetail grooves matching the dovetail guide rail, so that each component can be longitudinally plugged into component 1.

[0009] The male mold bracket is provided with a circuit hole.

[0010] The number of the positioning blocks is three.

[0011] The advantages of the present invention are: the detachable male mold 1 makes the demoulding process easier for products with complex shapes; the replaceable male mold 1 and male mold 2 divide the processing process into primary processing and secondary processing, and the secondary processing can remove the mold line defects produced by the primary processing, making the processing surface smoother and allowing the embedded wire to be more firmly encapsulated in the silicone material. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a working state diagram of the utility model;

[0013] Figure 2 A three-dimensional diagram of the assembled state of the male mold of the present invention;

[0014] Figure 3 This is a three-dimensional diagram of the utility model in a separated state of the male mold;

[0015] Figure 4 This is a three-dimensional diagram of the second male mold of the present utility model;

[0016] Figure 5 This is an exploded view of the intermediate steps of the present invention. DETAILED DESCRIPTION

[0017] The silicone finger mold of the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] As shown in the figure, the silicone finger mold of the present invention includes a female mold 10, a male mold 1 20, a male mold support 30, and a male mold 2 40. Three raised positioning blocks 11 are provided on the upper outer end of the female mold 10. The male mold 1 20 includes a detachable component 1 21, a component 2 22, a component 3 23, a component 4 24, and a component 5 25. The upper part of the male mold 1 20 is provided with a concave-convex structure for molding the upper part of the product, and the bottom end is provided with a plurality of heating wire fixing columns 52 for winding the heating wire and pre-embedding it into the product. The lower part of the male mold 2 40 is provided with a smooth surface for secondary molding the lower part of the product. Component 1 21 is a column with a square cross-section, and dovetail guide rails 26 are provided on its four sides. Component 2 22, component 3 23, component 4 24, and component 5 25 are all provided with dovetail grooves 27 that match the dovetail guide rails 26, so that each component can be longitudinally plugged into component 1 21.

[0019] Each positioning block 11, each component of the male mold 1 20 and the top of the male mold 2 40 are provided with threaded holes, and the male mold bracket 30 is provided with through holes matching the threaded holes and circuit holes 31 for pre-embedded circuits in the product.

[0020] The upper and lower portions of male mold 1 (20) are divided by the maximum diameter. The concave and convex structure on the upper portion is used to form the connection and positioning portion on the upper inner side of the product, while the surface formed on the lower portion serves as the base for subsequent secondary molding. Male mold 2 (40) has a connection portion on the upper portion and a forming portion on the lower portion, which is used for secondary molding on the base surface, resulting in a smoother inner lower surface. The diameter of male mold 1 (20) at all points on the upper portion is equal to the product diameter, while the diameter of the lower portion is greater. Male mold 2 (40) has a smaller diameter at all points on the upper portion, while the diameter of the lower portion is equal to the product diameter.

[0021] When in use, first assemble the male mold 20 and connect it to the bottom of the male mold bracket 30 through threads, wrap the heating wire to be embedded in the lower part of the male mold 20, then put the whole into the female mold 10, and connect it to the top of the female mold 10 through the threads on the female mold 10, insert the embedded circuit through the circuit hole, and then fill the space formed between the molds with silicone liquid. After it cools and forms, loosen all bolts, remove the male mold bracket 30, and take out the components of the male mold 20 step by step in the order of component 1 21, component 2 22 and component 3 23, component 4 24 and component 5 25. Then, connect the male mold 2 40 to the bottom of the male mold bracket 30 in the same way as the male mold 20 and put it into the female mold 10 for fixing. Inject silicone liquid to the boundary between the upper and lower parts for the second time. After it cools and forms, take out the male mold bracket 30 and male mold 2 40, so as to remove the mold line defects caused by the first processing in the lower part of the product, making the processed surface smoother.

[0022] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. A silicone finger mold, characterized by: The invention comprises a female mold (10), a male mold 1 (20), a male mold support (30) and a male mold 2 (40), wherein the outer upper end of the female mold (10) is provided with several raised positioning blocks (11), the male mold 1 (20) comprises a detachable component 1 (21), a component 2 (22), a component 3 (23), a component 4 (24) and a component 5 (25), the upper part of the male mold 1 (20) is provided with a concave-convex structure for molding the upper part of the product, and the bottom end is provided with a plurality of heating wire fixing columns (52) for winding the heating wire and pre-embedding it into the product, the lower part of the male mold 2 (40) is provided with a smooth surface for secondary molding the lower part of the product, the male mold 1 (20) and the male mold 2 (40) are connected to the lower part of the male mold support (30) in a replaceable manner, and the male mold support (30) is connected to the upper part of the female mold (10).

2. The silicone finger mold according to claim 1, characterized in that: Each of the positioning blocks (11), each component of the male mold 1 (20) and the top of the male mold 2 (40) is provided with a threaded hole, and the male mold bracket (30) is provided with a through hole matching each threaded hole, and the connection between the male mold 1 (20), the male mold 2 (40), the male mold bracket (30) and the female mold (10) is a threaded connection.

3. The silicone finger mold according to claim 2, characterized in that: The component 1 (21) is a column with a square cross section, and dovetail guide rails (26) are provided on the four sides thereof.

4. The silicone finger mold according to claim 3, characterized in that: The component two (22), the component three (23), the component four (24) and the component five (25) are all provided with dovetail grooves (27) matching the dovetail guide rail (26), so that each component can be longitudinally plugged into the component one (21).

5. The silicone finger mold according to any one of claims 1 to 4, characterized in that: The male mold bracket (30) is provided with a circuit hole (31).

6. The silicone finger mold according to claim 5, characterized in that: The number of the positioning blocks (11) is three.

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