Plastic uptake forming mold

Abstract

The utility model relates to a plastic uptake forming die which comprises a forming die plate, a plurality of forming parts are arranged on the upper surface of the forming die plate, the forming parts are symmetrically distributed on the two sides of a middle shaft part of the forming die plate, each forming part comprises a forming groove, a plurality of protruding columns are arranged in the forming groove at intervals, and the protruding columns are arranged in the forming groove in a protruding mode. The convex column comprises a top end part and a bottom end part, the top end part is higher than the side wall of the forming groove, the bottom end part is connected with the forming template, the top end part is a free end, an annular groove is formed between the bottom end part and the forming groove, and the bottom surface of the forming groove sinks to form the annular groove. According to the plastic uptake forming mold, sinking suction force can be increased at the bottom of the riveting column when a product is formed, so that stress of stacked materials is uniformly distributed, the phenomenon of wire pulling caused by the stacking problem is avoided, and the formed product is tightly attached to an accessory without affecting the function or generating other conflicts.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a plastic suction molding mold. Background Art

[0002] Blister molding is a plastic processing technology. The main principle is to heat and soften the flat plastic hard sheet, then use vacuum adsorption to the mold surface, and then cool it to form. It is widely used in plastic packaging. Blister molding usually uses molds, such as Figure 1 The figure shows a product formed by polycarbonate material, also known as PC material. Due to process requirements, after the raw materials are placed in the mold and heated, the fluidity of the raw materials increases, and the material accumulates at the bottom of the molding template of the molding cavity column, resulting in a pull line 10 at the bottom of the rivet column of the molded product, resulting in other components not being able to fit perfectly with the product surface when assembled with the product, and the product cannot be used. Utility Model Content

[0003] In order to solve the problems of the prior art, the utility model provides a vacuum forming mold which can avoid the wire drawing phenomenon of the formed product and enable the product to fit closely with the matching part.

[0004] The specific technical scheme is as follows: A vacuum forming mold comprises a forming template, a forming part is provided on the upper surface of the forming template, there are multiple forming parts, and the forming parts are symmetrically distributed on both sides of the central axis of the forming template, the forming part comprises a forming groove, a convex column is provided in the forming groove, and the multiple convex columns are arranged at intervals, and the convex columns are convexly arranged in the forming groove, and the convex columns comprise a top end and a bottom end, the top end is located higher than the side wall of the forming groove, the bottom end is connected to the forming template, the top end is a free end, and an annular groove is provided between the bottom end and the forming groove, and the annular groove is formed by sinking the bottom surface of the forming groove.

[0005] In some embodiments, the width of the annular groove is 2 mm, and the depth of the annular groove is 1.5 mm.

[0006] In some embodiments, the forming portion is provided with at least three protruding columns.

[0007] In some embodiments, the forming groove has a groove therein, and flat surfaces are provided on both sides of the groove, and the convex columns are distributed on the groove and the flat surfaces.

[0008] In some embodiments, the boss is arranged vertically.

[0009] In some embodiments, the top end has rounded corners.

[0010] In some embodiments, an inclined surface is provided between the planar portion and the groove.

[0011] Technical effect of the utility model: A blister forming mold of the utility model can solve the problem of increasing the sinking suction force at the bottom of the rivet column when the product is formed, so that the force of the deposited material is evenly distributed, avoiding the accumulation problem to form a pulling line phenomenon, and making the molded product fit closely with the accessories without affecting their functions or causing other conflicts. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a schematic diagram of the wire drawing phenomenon of a product formed by a prior art mold of the utility model.

[0014] Figure 2 It is a schematic diagram of a vacuum forming mold according to an embodiment of the utility model.

[0015] Figure 3 This utility model Figure 1 Schematic diagram of the AA section.

[0016] Figure 4 It is a schematic diagram of a protruding column according to an embodiment of the utility model.

[0017] Figure 5 It is a top view of the protruding column of the embodiment of the utility model. DETAILED DESCRIPTION

[0018] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0022] like Figures 2 to 5 As shown, a vacuum forming mold of this embodiment includes a forming template 1, a forming part 2 is provided on the upper surface of the forming template 1, and the forming template 1 is arranged in the forming cavity of the mold. The material enters the forming cavity and is formed on the forming template. There are multiple forming parts 2, and the forming parts 2 are symmetrically distributed on both sides of the central axis 11 of the forming template 1. The forming template 1 of this embodiment is used to form products made of PC materials. The forming part 2 includes a forming groove 21, and a convex column 22 is provided in the forming groove 21. The multiple convex columns 22 are arranged at intervals. The convex columns 22 are convexly arranged in the forming groove 21, and the convex columns are used to form rivet columns. The convex column 22 includes a top end 221 and a bottom end 222. The position of the top end 221 is higher than the side wall 211 of the forming groove 21. In this embodiment, the spacing H between the top end 221 and the bottom of the forming template is 17.5mm. The bottom end 222 is connected to the forming template 1, and the top end 221 is a free end. An annular groove 23 is provided between the bottom end 222 and the forming groove 21, and the annular groove 23 is formed by sinking the bottom surface of the forming groove 21. In the above technical solution, when the product is formed, the material enters the mold and accumulates on the forming template 1 for forming. By providing the annular groove 23 at the bottom of the convex column 22, the sinking suction at this position can be increased, so that the force of the accumulated material is evenly distributed, the accumulation problem is avoided, and the bottom of the formed rivet column will not have a pulling line phenomenon. The above technical solution can solve the problem of pulling lines formed at the bottom of the rivet column when the product is formed.

[0023] In this embodiment, the width D of the annular groove 23 is 2 mm, and the depth L of the annular groove is 1.5 mm. Through the above technical solution, the bottom of the formed rivet column can be made smoother. A larger size of the annular groove can easily cause the bottom of the formed rivet column to collapse. The forming portion 2 is provided with at least three bosses 22, so that multiple rivet columns can be formed, thereby improving the positioning stability of the product. The forming groove 21 has a groove 24, and a flat portion 25 is provided on both sides of the groove 24. The bosses 22 are distributed on the groove 24 and the flat portion 25, so that rivet columns of different heights can be formed. The bosses 22 are arranged vertically. The top end 221 has rounded corners, and an inclined surface 26 is provided between the flat portion 25 and the groove 24, so as to facilitate the flow of materials between the flat portion and the groove.

[0024] A vacuum forming mold in this embodiment can solve the problem of increasing the sinking suction force at the bottom of the rivet column when the product is formed, so that the force of the deposited material is evenly distributed, avoiding the accumulation problem to form a pulling line phenomenon, and making the molded product fit closely with the accessories without affecting their functions or causing other conflicts.

[0025] The above is an explanation of a vacuum forming mold of the utility model, but the utility model is not limited to the above specific implementation, and various deformations or changes can be made as long as they do not depart from the scope of the claims. The utility model includes various deformations and changes within the scope of the claims.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A vacuum forming mold, comprising a forming template, wherein a forming portion is provided on the upper surface of the forming template, characterized in that: There are multiple forming parts, which are symmetrically distributed on both sides of the central axis of the forming template. The forming part includes a forming groove, in which a convex column is arranged, and the multiple convex columns are arranged at intervals. The convex columns are convexly arranged in the forming groove. The convex column includes a top end and a bottom end. The top end is located higher than the side wall of the forming groove, and the bottom end is connected to the forming template. The top end is a free end. An annular groove is arranged between the bottom end and the forming groove, and the annular groove is formed by sinking the bottom surface of the forming groove.

2. The blister forming mold according to claim 1, characterized in that: The width of the annular groove is 2 mm, and the depth of the annular groove is 1.5 mm.

3. The blister forming mold according to claim 2, characterized in that: The forming portion is provided with at least three protruding columns.

4. The blister forming mold according to claim 3, characterized in that: The forming groove is provided with a groove, two sides of the groove are provided with flat parts, and the convex columns are distributed on the groove and the flat parts.

5. The blister forming mold according to claim 4, characterized in that: The convex column is arranged vertically.

6. The blister forming mold according to claim 5, characterized in that: The top end has rounded corners.

7. The blister forming mold according to claim 6, characterized in that: An inclined surface is provided between the plane portion and the groove.

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