Injection molding template capable of improving flow marks

Abstract

The utility model discloses an injection mold plate capable of improving flow marks. The injection mold plate comprises a horizontally arranged fixed mold cavity plate, a movable mold cavity plate horizontally arranged under the fixed mold cavity plate, and a plurality of mold cores arranged on the movable mold cavity plate in a penetrating manner, the movable mold cavity plate is provided with a plurality of mounting holes for mounting the mold cores, and the plurality of mold cores are respectively mounted in the plurality of mounting holes of the movable mold cavity plate; a plurality of fine exhaust grooves are respectively formed in the top end surfaces of the plurality of mold cores; a plurality of mounting grooves for mounting balance blocks are formed in the top surface of the movable mold cavity plate, the balance blocks are mounted in the mounting grooves in a one-to-one correspondence manner, and the top surfaces of the balance blocks are flush with the top end surfaces of the mold cores. According to the injection mold plate, the balance block is additionally arranged on the parting surface of the movable mold cavity plate, so that the pre-pressing amount between the mold plates can be increased, the mold closing pressure borne by the parting surface of a formed part is reduced, fine exhaust can be smooth, and the top flow mark phenomenon of an injection product is improved.

Description

Technical Field

[0001] This utility model relates to an injection molding template that can improve flow marks. Background Technology

[0002] The face cream cap is an injection-molded product. Specifically, the injection mold used includes: a flat fixed mold cavity plate, a movable mold cavity plate placed flat below the fixed mold cavity plate, and multiple mold cores passing through the movable mold cavity plate; the movable mold cavity plate is provided with multiple mounting holes for mounting the mold cores, and the multiple mold cores are respectively installed in the multiple mounting holes of the movable mold cavity plate; the top end face of the multiple mold cores is provided with multiple air venting grooves.

[0003] During injection molding, the top surface of the moving mold cavity plate and the bottom surface of the fixed mold cavity plate close together. The closing pressure is applied to the fine venting groove on the top end face of the mold core, which will cause flow marks on the top of the injection molded product. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this utility model provides an injection molding template that improves flow marks, comprising: a flat fixed mold cavity plate, a movable mold cavity plate flatly positioned directly below the fixed mold cavity plate, and multiple mold cores passing through the movable mold cavity plate; the movable mold cavity plate has multiple mounting holes for mounting the mold cores, and the multiple mold cores are respectively installed in the multiple mounting holes of the movable mold cavity plate; the top end faces of the multiple mold cores are respectively provided with multiple air venting grooves; the top surface (parting surface) of the movable mold cavity plate is provided with multiple mounting slots for mounting balance blocks, and the multiple balance blocks are respectively installed in the mounting slots one by one, and the top surfaces of the multiple balance blocks are flush with the top end faces of the multiple mold cores.

[0005] Preferably, the plurality of balance blocks are respectively fixed to the bottom wall of the corresponding mounting groove by bolts, and the top of the bolts is not higher than the top surface of the balance block.

[0006] Preferably, the plurality of balancing blocks include: edge balancing blocks disposed around the edge of the moving model cavity plate, and central balancing blocks disposed in the middle of the moving model cavity plate.

[0007] Preferably, the edge balancing blocks include: two sets of long-side balancing blocks disposed on a pair of long sides of the moving model cavity plate, and two sets of wide-side balancing blocks disposed on a pair of wide sides of the moving model cavity plate.

[0008] Preferably, the two sets of long-side balancing blocks each include three long-side balancing blocks, and the three long-side balancing blocks are respectively located at both ends and the middle of the long side of the moving model cavity plate.

[0009] Preferably, the two sets of wide-side balance blocks each include two wide-side balance blocks, and the two wide-side balance blocks are evenly distributed along the wide side of the moving model cavity plate.

[0010] Preferably, the central balancing blocks are in two groups, with three central balancing blocks in each group, and the two groups of central balancing blocks are evenly distributed along the long side of the moving model cavity plate.

[0011] Preferably, the three central balance blocks of the same group are equally spaced along the wide side of the moving model cavity plate.

[0012] The advantages and beneficial effects of this utility model are as follows:

[0013] An injection molding template is provided, in which multiple balancing blocks are added to the parting surface of the moving mold cavity plate, which can improve the flow marks on the top of the injection molded product.

[0014] Adding a balance block to the parting surface of the moving mold cavity plate can increase the pre-compression between the mold plates, thereby reducing the mold closing pressure on the parting surface of the molded part (the balance block can share the mold closing pressure on the fine venting groove on the top face of the mold core), allowing the fine venting to be unobstructed, and thus improving the flow mark phenomenon on the top of the injection molded product. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the moving model cavity plate without a balance block installed;

[0016] Figure 2 This is a schematic diagram of the moving model cavity plate with the balance block installed. Detailed Implementation

[0017] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0018] The specific technical solution of this utility model is as follows:

[0019] like Figure 1 and Figure 2 As shown, an injection molding template that can improve flow marks includes: a flat fixed mold cavity plate, a movable mold cavity plate 1 flatly placed directly below the fixed mold cavity plate, and a plurality of mold cores passing through the movable mold cavity plate 1; the movable mold cavity plate 1 is provided with a plurality of mounting holes 2 for mounting the mold cores, and the plurality of mold cores are respectively installed in the plurality of mounting holes 2 of the movable mold cavity plate 1; the top end face of the plurality of mold cores is respectively provided with a plurality of fine venting grooves;

[0020] The top surface of the moving model cavity plate 1 is provided with multiple mounting slots 3 for mounting balance blocks. Each balance block is installed in one of the mounting slots 3, and the top surface of each balance block is flush with the top end face of the multiple mold cores. Each balance block is fixed to the bottom wall of its corresponding mounting slot 3 by bolts, and the top of the bolts is not higher than the top surface of the balance block. Figure 1 and Figure 2 Bolts are not shown in the middle).

[0021] The plurality of balancing blocks include: edge balancing blocks arranged around the edge of the moving model cavity plate 1, and central balancing block A located in the middle of the moving model cavity plate 1;

[0022] The edge balancing blocks include: two sets of long-side balancing blocks B disposed on a pair of long sides of the moving model cavity plate 1, and two sets of wide-side balancing blocks C disposed on a pair of wide sides of the moving model cavity plate 1; the two sets of long-side balancing blocks B each include three long-side balancing blocks B, and the three long-side balancing blocks B are disposed at both ends and the middle of the long side of the moving model cavity plate 1; the two sets of wide-side balancing blocks C each include two wide-side balancing blocks C, and the two wide-side balancing blocks C are evenly distributed along the wide side of the moving model cavity plate 1;

[0023] The central balancing block A consists of two groups, with three central balancing blocks A in each group, and the two groups of central balancing blocks A are evenly distributed along the long side of the moving model cavity plate 1; the three central balancing blocks A in the same group are equally spaced along the wide side of the moving model cavity plate 1.

[0024] The injection molding template of this utility model adds 16 balancing blocks (6 central balancing blocks A, 6 long side balancing blocks B, and 4 wide side balancing blocks C) to the parting surface of the moving mold cavity plate 1, which can improve the flow marks on the top of the injection molded product.

[0025] Adding a balance block to the parting surface of the moving mold cavity plate 1 can increase the pre-compression between the mold plates, thereby reducing the mold closing pressure on the parting surface of the molded part (the balance block can share the mold closing pressure on the fine venting groove at the top end face of the mold core), allowing the fine venting to be unobstructed, and thus improving the flow mark phenomenon at the top of the injection molded product.

[0026] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An injection molded template that can improve flow marks, comprising: A flat fixed model cavity plate, a moving model cavity plate placed flat directly below the fixed model cavity plate, and multiple mold cores passing through the moving model cavity plate; The moving model cavity plate is provided with a plurality of mounting holes for mounting mold cores, and the plurality of mold cores are respectively installed in the plurality of mounting holes of the moving model cavity plate; the top end face of the plurality of mold cores is provided with a plurality of fine exhaust grooves; the moving model cavity plate is characterized in that the top surface of the moving model cavity plate is provided with a plurality of mounting slots for mounting balance blocks, the plurality of balance blocks are respectively installed in the mounting slots one by one, and the top surface of the plurality of balance blocks is flush with the top end face of the plurality of mold cores.

2. The injection molding template for improving flow marks according to claim 1, characterized in that, The plurality of balance blocks are respectively fixed to the bottom wall of the corresponding mounting groove by bolts, and the top of the bolts is not higher than the top surface of the balance block.

3. The injection molding template for improving flow marks according to claim 1, characterized in that, The plurality of balancing blocks include: edge balancing blocks arranged around the edge of the moving model cavity plate, and central balancing blocks located in the middle of the moving model cavity plate.

4. The injection molding template for improving flow marks according to claim 3, characterized in that, The edge balancing blocks include: two sets of long-side balancing blocks disposed on a pair of long sides of the moving model cavity plate, and two sets of wide-side balancing blocks disposed on a pair of wide sides of the moving model cavity plate.

5. The injection molding template for improving flow marks according to claim 4, characterized in that, The two sets of long-side balance blocks each include three long-side balance blocks, and the three long-side balance blocks are respectively located at both ends and the middle of the long side of the moving model cavity plate.

6. The injection molding template for improving flow marks according to claim 4, characterized in that, The two sets of wide-side balance blocks each include two wide-side balance blocks, and the two wide-side balance blocks are evenly distributed along the wide side of the moving model cavity plate.

7. The injection molding template for improving flow marks according to claim 3, characterized in that, The central balancing blocks are in two groups, with three central balancing blocks in each group, and the two groups of central balancing blocks are evenly distributed along the long side of the moving model cavity plate.

8. The injection molding template for improving flow marks according to claim 1, characterized in that, The three central balance blocks in the same group are set at equal intervals along the wide side of the moving model cavity plate.

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