Injection mold

Abstract

The utility model relates to an injection mold. The injection mold comprises an upper mold base and a lower mold base which can be opened and closed relatively, an upper mounting cavity is formed in the bottom of the upper die base, an upper opening is formed in the side face of the upper mounting cavity, an upper die core is arranged in the upper mounting cavity, and the upper die core is installed in the upper mounting cavity through the upper opening and locked through a first positioning structure. A lower installation cavity is formed in the position, corresponding to the upper installation cavity, of the top of the lower die base, a lower opening is formed in the side face of the lower installation cavity, a lower die core is arranged in the lower installation cavity, and the lower die core is installed in the lower installation cavity through the lower opening and locked through a second positioning structure. The mold is reasonable in structural arrangement, the mold core can be quickly disassembled and assembled, and the working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the field of mold structure design, and in particular relates to an injection mold. Background Art

[0002] Injection molding is a processing method for mass production of certain plastic products. Specifically, it refers to injecting heated and melted plastic into an injection mold, and obtaining a molded product after cooling and solidification. Different injection molds are required for different products, and the quality of the injection mold is directly related to the production quality of the product. At present, the mold core in the injection mold is mostly an integral structure. When the mold core is damaged during the injection molding process, the injection mold needs to be removed from the injection molding machine, and then the injection mold is disassembled, and then the mold core is removed for repair or replacement. The disassembly and assembly process is very troublesome and the work efficiency is very low. Utility Model Content

[0003] Therefore, the utility model aims to provide an injection mold which can facilitate the disassembly and assembly of the mold core.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model provides an injection mold, comprising an upper mold base and a lower mold base which can be opened and closed relatively;

[0006] An upper mounting cavity is provided at the bottom of the upper die seat, an upper opening is provided on the side of the upper mounting cavity, an upper die core is provided in the upper mounting cavity, and the upper die core is installed into the upper mounting cavity through the upper opening and locked by a first positioning structure;

[0007] A lower mounting cavity is provided on the top of the lower mold base at a position corresponding to the upper mounting cavity, a lower opening is provided on the side of the lower mounting cavity, a lower mold core is provided in the lower mounting cavity, and the lower mold core is loaded into the lower mounting cavity through the lower opening and locked by a second positioning structure.

[0008] In some embodiments, the first positioning structure includes an upper positioning platform provided on the side wall of the upper mold core, an upper positioning slot provided on the side wall of the upper mounting cavity, and an upper fixing block fixed to the outer end of the upper mold core, the upper positioning platform and the upper positioning slot form a plug-in fit, and the plug-in direction is horizontal, and the upper fixing block and the upper mold base are locked by a first screw.

[0009] In some embodiments, a first gripping portion is provided on the upper fixing block.

[0010] In some embodiments, the second positioning structure includes a lower positioning platform provided on the side wall of the lower mold core, a lower positioning slot provided on the side wall of the lower mounting cavity, and a lower fixing block fixed to the outer end of the lower mold core, the lower positioning platform and the lower positioning slot form a plug-in fit, and the plug-in direction is horizontal, and the lower fixing block and the lower mold base are locked by a second screw.

[0011] In some embodiments, a second gripping portion is provided on the lower fixing block.

[0012] In some embodiments, mounting holes are provided on two opposite side walls of the upper mounting cavity and / or the lower mounting cavity, and abutment blocks and strong springs are provided in the mounting holes. The strong springs provide inward elastic force for the abutment blocks so that the inner ends of the abutment blocks extend out of the inner ports of the mounting holes, and a stopper is provided at the inner ports of the mounting holes to limit the abutment blocks.

[0013] In some embodiments, both sides of the upper opening and the lower opening are provided with guide slopes.

[0014] In some embodiments, the upper opening and the lower opening are located on the same side of the injection mold.

[0015] The utility model has the positive effects: in the injection mold of the utility model, by providing an upper mounting cavity with an upper opening on the side of the upper mold base, and providing a lower mounting cavity with a lower opening on the side of the lower mold base, the upper mold core and the lower mold core can be disassembled and installed from the upper opening and the lower opening respectively, so there is no need to disassemble the entire mold, which reduces the workload, effectively improves the efficiency of disassembly and assembly of the mold core, and has good practicality and popularization. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of the injection mold (before the upper mold core and the lower mold core are installed) in the utility model;

[0018] Figure 2 for Figure 1 The schematic diagram of the structure of the upper die core and the lower die core in the combined state shown;

[0019] Figure 3 This is a front view of the injection mold (after the upper mold core and the lower mold core are installed) in the utility model;

[0020] Figure 4 For along Figure 3 Sectional view cut along line AA;

[0021] Figure 5 for Figure 4 A partial enlarged view of point B in the middle;

[0022] Figure 6 It is a structural schematic diagram of the abutment block in the utility model.

[0023] The reference numerals shown in the figure are: 1-upper die base; 2-lower die base; 11-upper mounting cavity; 12-upper opening; 13-upper die core; 21-lower mounting cavity; 22-lower opening; 23-lower die core; 14-upper positioning platform; 15-upper positioning slot; 16-upper fixing block; 17-first screw; 18-first gripping portion; 23-lower die core; 24-lower positioning platform; 25-lower positioning slot; 26-lower fixing block; 27-second screw; 28-second gripping portion; 3-mounting hole; 31-abutment block; 32-strong spring; 33-stop platform; 4-guide slope. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0025] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present utility model are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. In the present utility model, unless otherwise clearly specified and limited, the terms "connection", "fixed", etc. should be understood in a broad sense. For example, "fixed" can be a fixed connection, a detachable connection, or an integral whole; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0027] The injection mold structure in the embodiment of the utility model is as follows Figure 1 and Figure 3 As shown, it includes an upper mold base 1 and a lower mold base 2 that can be opened and closed relatively. An upper mold core 13 is installed in the upper mold base 1, and a lower mold core 23 is installed in the lower mold base 2. An injection mold cavity is formed between the upper mold core 13 and the lower mold core 23. During injection molding production, molten material is injected into the injection mold cavity to manufacture products.

[0028] See also Figures 1 to 4 As shown, the upper die base 1 is provided with an upper mounting cavity 11 at the bottom, an upper opening 12 is provided on the side of the upper mounting cavity 11, an upper die core 13 is provided in the upper mounting cavity 11, the upper die core 13 is loaded into the upper mounting cavity 11 through the upper opening 12 and locked by a first positioning structure, so that the upper die core 13 is fixed in the upper mounting cavity 11; the lower die base 2 is provided with a lower mounting cavity 21 at a position corresponding to the upper mounting cavity 11 at the top, a lower opening 22 is provided on the side of the lower mounting cavity 21, and a lower die core 23 is provided in the lower mounting cavity 21, The lower mold core 23 is loaded into the lower mounting cavity 21 through the lower opening 22 and locked by the second positioning structure, so that the lower mold core 23 is fixed in the lower mounting cavity 21; in this embodiment, by providing an upper mounting cavity 11 with an upper opening 12 on the side of the upper mold base 1, and providing a lower mounting cavity 21 with a lower opening 22 on the side of the lower mold base 2, the upper mold core 13 and the lower mold core 23 can be disassembled and installed from the upper opening 12 and the lower opening 22 respectively, thereby eliminating the need to disassemble the entire mold, reducing workload, and effectively improving the efficiency of mold core disassembly and assembly.

[0029] In some embodiments, Figure 2 and Figure 3As shown, the first positioning structure includes an upper positioning platform 14 arranged on the side wall of the upper mold core 13, an upper positioning slot 15 arranged on the side wall of the upper mounting cavity 11 and an upper fixing block 16 fixed to the outer end of the upper mold core 13, the upper positioning platform 14 and the upper positioning slot 15 form a plug-in fit, and the plug-in direction is horizontal, the upper fixing block 16 and the upper mold base 1 are locked by a first screw 17, so that the upper mold core 13 can be installed in the upper mounting cavity 11 by a pull-in method, and the first screw 17 is used to lock the upper mold core 13 when it is in place. When the upper mold core 13 is removed, the first screw 17 is loosened and the upper mold core 13 can be pulled out from the upper mounting cavity 11, which is very convenient to operate; further, in order to facilitate the disassembly and movement of the upper mold core 13, a first gripping portion 18 is provided on the upper fixing block 16, and the first gripping portion 18 is used as a gripper to facilitate the staff to hold it by hand.

[0030] In some embodiments, the second positioning structure includes a lower positioning platform 24 provided on the side wall of the lower mold core 23, a lower positioning slot 25 provided on the side wall of the lower mounting cavity 21 and a lower fixing block 26 fixed to the outer end of the lower mold core 23, the lower positioning platform 24 and the lower positioning slot 25 form a plug-in fit, and the plug-in direction is horizontal, and the lower fixing block 26 is locked with the lower mold base 2 by a second screw 27; in this way, the lower mold core 23 can be installed in the lower mounting cavity 21 by a plug-in method, and the second screw 27 can be used to lock the lower mold core 23 when it is installed in place. When removing the lower mold core 23, the second screw 27 is loosened and the lower mold core 23 can be pulled out from the lower mounting cavity 21, which is very convenient to operate; further, in order to facilitate the disassembly and movement of the lower mold core 23, a second gripping portion 28 is provided on the lower fixing block 26, and the second gripping portion 28 is used as a gripper to facilitate the staff to hold it by hand.

[0031] In order to further ensure the stability of the installation of the upper mold core 13 and the lower mold core 23, as shown in FIG. Figures 4 to 6 As shown, mounting holes 3 are provided on two opposite side walls of the upper mounting cavity 11 and the lower mounting cavity 21, and abutment blocks 31 and strong springs 32 are provided in the mounting holes 3. The strong springs 32 provide inward elastic force for the abutment blocks 31, so that the inner ends of the abutment blocks 31 extend out of the inner ports of the mounting holes 3, and then the inner ends of the abutment blocks 13 can contact the sides of the upper die core 13 and the lower die core 23, thereby enhancing the structural stability and ensuring the precision. In order to prevent the abutment blocks 31 from detaching from the mounting holes 3 under the elastic force of the strong springs 32, a stopper 33 is provided at the inner ports of the mounting holes 3 to block and limit the abutment blocks 31. In actual operation, the mounting holes 3, abutment blocks 31 and strong springs 32 may also be provided only in the upper mounting cavity 11 or the lower mounting cavity 21.

[0032] In order to facilitate the installation of the upper mold core 13 and the lower mold core 23, guide bevels 4 are provided on both sides of the upper opening 12 and the lower opening 22, and the guide bevels 4 can play a guiding role.

[0033] For the convenience of operation, in this embodiment, the upper opening 12 and the lower opening 22 are arranged on the same side of the injection mold, so that the upper mold core 13 and the lower mold core 23 can be disassembled and assembled in the same direction.

[0034] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An injection mold, comprising an upper mold base (1) and a lower mold base (2) that can be opened and closed relative to each other; It is characterized in that An upper mounting cavity (11) is provided at the bottom of the upper die seat (1), an upper opening (12) is provided on the side of the upper mounting cavity (11), an upper die core (13) is provided in the upper mounting cavity (11), and the upper die core (13) is installed in the upper mounting cavity (11) through the upper opening (12) and is locked by a first positioning structure; A lower mounting cavity (21) is provided on the top of the lower die seat (2) at a position corresponding to the upper mounting cavity (11); a lower opening (22) is provided on the side of the lower mounting cavity (21); a lower die core (23) is provided in the lower mounting cavity (21); the lower die core (23) is inserted into the lower mounting cavity (21) through the lower opening (22) and is locked by a second positioning structure.

2. The injection mold according to claim 1, characterized in that: The first positioning structure comprises an upper positioning insert (14) arranged on the side wall of the upper mold core (13), an upper positioning slot (15) arranged on the side wall of the upper mounting cavity (11), and an upper fixing block (16) fixed to the outer end of the upper mold core (13); the upper positioning insert (14) and the upper positioning slot (15) form a plug-in fit, and the plug-in direction is horizontal; the upper fixing block (16) and the upper mold base (1) are locked by a first screw (17).

3. The injection mold according to claim 2, characterized in that: The upper fixing block (16) is provided with a first gripping portion (18).

4. The injection mold according to claim 1, characterized in that: The second positioning structure comprises a lower positioning insert (24) arranged on the side wall of the lower mold core (23), a lower positioning slot (25) arranged on the side wall of the lower mounting cavity (21), and a lower fixing block (26) fixed to the outer end of the lower mold core (23); the lower positioning insert (24) and the lower positioning slot (25) form a plug-in fit, and the plug-in direction is horizontal; the lower fixing block (26) and the lower mold base (2) are locked by a second screw (27).

5. The injection mold according to claim 4, characterized in that: The lower fixing block (26) is provided with a second gripping portion (28).

6. The injection mold according to claim 1, characterized in that: Mounting holes (3) are provided on two opposite side walls of the upper mounting cavity (11) or / and the lower mounting cavity (21), and abutment blocks (31) and strong springs (32) are provided in the mounting holes (3). The strong springs (32) provide an inward elastic force for the abutment blocks (31), so that the inner end of the abutment blocks (31) protrudes from the inner end of the mounting holes (3), and a stopper (33) is provided at the inner end of the mounting holes (3) for blocking and limiting the abutment blocks (31).

7. The injection mold according to claim 1, characterized in that: Guide slopes (4) are provided on both sides of the upper opening (12) and the lower opening (22).

8. The injection mold according to claim 1, characterized in that: The upper opening (12) and the lower opening (22) are located on the same side of the injection mold.

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