Group Cavity PET Bottle Preform Injection Mold

Abstract

The utility model belongs to the technical field of injection molds, and particularly relates to a group-cavity PET bottle blank injection mold. The utility model includes an upper mold plate, an injection port assembly is arranged in the upper mold plate, a flow channel plate is arranged below the upper mold plate, an upper mold seat is arranged below the flow channel plate, an outer mold core assembly is arranged in the upper mold seat, an inner mold core column is inserted into the outer mold core assembly, and a positioning screw is inserted into the inner mold core column, a limiting head is arranged below the inner mold core column, and the limiting head is arranged in the positioning plate, and a lower mold seat is arranged below the positioning plate, the lower part of the limiting head is fixedly connected in the lower mold seat, a lower mold plate is arranged below the lower mold seat, and the bottom of the positioning screw is inserted and fixedly connected in the lower mold seat. The utility model utilizes the design inside the mold, and when opening the mold, the entire mold structure can be separated, so that the internal bottle blank is not stuck in the mold cavity, avoiding the situation that the bottle blank is stuck in the mold cavity, preventing scrapping or reshaping, reducing labor, and increasing work efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molds and relates to a group-cavity PET bottle blank injection mold. Background Art

[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding. The advantages of the injection molding method are fast production speed, high efficiency, automated operation, a wide variety of colors, shapes from simple to complex, sizes from large to small, and precise product size. The product is easy to update and can be made into parts with complex shapes. Injection molding is suitable for mass production and molding and processing fields such as products with complex shapes. The existing group-cavity PET bottle blank injection mold has multiple cavities inside, and a wrapping mold is often set as a whole. This will cause the bottle blank to have a length limit when the mold is opened, and the bottle blank is often stuck at the mold core, which will cause scratches or dents on the bottle blank after completion. At this time, the product will be scrapped or reshaped, increasing the amount of manual labor and reducing work efficiency. Therefore, a group-cavity PET bottle blank injection mold is proposed to address the above problems. Utility Model Content

[0003] The utility model aims to solve the above problems and provides a group-cavity PET bottle blank injection mold.

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

[0005] A group-cavity PET bottle blank injection mold comprises an upper mold plate, a flow channel plate is provided below the upper mold plate, and an injection port assembly is provided in the upper mold plate and the flow channel plate, an upper mold base is provided below the flow channel plate, and an outer mold core assembly is inserted in the upper mold base, a limiting head is provided below the outer mold core assembly, and a positioning plate is provided below the limiting head, an inner mold core column is inserted below the outer mold core assembly and in the limiting head, and a positioning screw is inserted in the inner mold core column, slider assemblies are provided on both sides below the positioning plate, the slider assemblies are clamped in both sides above the lower mold base, the positioning screw passes through the positioning plate and the lower mold base in turn, a lower mold plate is provided below the lower mold base, and the bottom of the positioning screw is inserted in the lower mold base, and a limiting plug is provided between the lower mold base and both sides of the upper mold base.

[0006] In the above-mentioned group-cavity PET bottle blank injection mold, an injection port assembly is provided in the middle of the upper mold plate, and a runner plate is fixedly connected to the lower part of the upper mold plate. At the same time, a diverter groove is provided in the middle part above the runner plate, and the injection port assembly is communicated with the diverter groove. An upper mold base is fixedly connected to the lower part of the runner plate, and a plurality of positioning holes are provided in the upper mold base.

[0007] In the above-mentioned group-cavity PET bottle blank injection mold, the outer mold core assembly is inserted and fixedly connected in the positioning hole, and the lower part of the outer mold core assembly exceeds the bottom of the upper mold base. At the same time, the bottom of the outer mold core assembly is fixedly connected to the bottom of the runner plate, and the outer mold core assembly is connected to the diversion groove.

[0008] In the above-mentioned group-cavity PET bottle blank injection mold, a limiting head is pressed under the outer mold core assembly, the middle part of the limiting head is inserted into a fixedly connected positioning plate, and slider assemblies are fixedly connected on both sides below the positioning plate, and there is a distance between the slider assembly and the limiting head.

[0009] In the above-mentioned group-cavity PET bottle blank injection mold, limiting slide grooves are opened on both sides above the lower mold base, and fixed connecting slider assemblies are inserted into the limiting slide grooves. At the same time, there is a gap between the upper plane of the lower mold base and the lower plane of the positioning plate.

[0010] In the above-mentioned group-cavity PET bottle blank injection mold, a plurality of upper positioning holes are opened above the lower mold base, the bottom of the fixedly connected limiting head is inserted into the upper positioning holes, and the bottom of the slidingly connected inner mold core column is inserted into the limiting head.

[0011] In the above-mentioned group-cavity PET bottle blank injection mold, the inner mold core column is inserted upward into the outer mold core assembly, and a molding cavity is formed between the inner mold core column and the outer mold core assembly. A fixedly connected positioning screw is inserted into the inner mold core column, and the bottom of the positioning screw exceeds the inner mold core column and the bottom of the limiting head respectively.

[0012] In the above-mentioned group-cavity PET preform injection mold, the lower mold base is fixedly connected to the lower mold plate below, and a plurality of lower positioning holes are opened above the lower mold plate, and the lower positioning holes correspond to the upper positioning holes.

[0013] In the above-mentioned group-cavity PET bottle blank injection mold, the bottom of the inner mold core column is inserted and fixedly connected in the lower positioning hole, and the bottom of the positioning screw is inserted and fixedly connected in the lower positioning hole, and at the same time, the bottom of the inner mold core column is tightly fitted with the upper plane of the lower template.

[0014] In the above-mentioned group-cavity PET preform injection mold, limit holes are opened on both sides of the bottom of the upper mold base, and limit plug blocks are fixedly connected on both sides of the upper side of the lower mold base, and the upper side of the limit plug blocks is inserted into the sliding connection limit holes.

[0015] Compared with the existing technology, the advantages of the utility model are:

[0016] The utility model has an injection port assembly in an upper template, a flow channel plate under the upper template, an upper mold base under the flow channel plate, an outer mold core assembly in the upper mold base, an inner mold core column inserted in the outer mold core assembly, a positioning screw inserted in the inner mold core column, a limiting head provided under the inner mold core column, and the limiting head provided in the positioning plate, a lower mold base provided under the positioning plate, a lower mold base fixedly connected in the lower mold base, a lower template provided under the lower mold base, and a bottom of the positioning screw inserted and fixedly connected in the lower mold base, and the entire mold structure can be separated when the mold is opened by utilizing the internal design of the mold, so that the internal bottle embryo is not stuck in the cavity, thereby avoiding the situation that the bottle embryo is stuck in the cavity, preventing scrapping or reshaping, reducing labor, and increasing work efficiency.

[0017] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an overall schematic diagram of the utility model;

[0019] Figure 2 This is an overall exploded top view of the utility model.

[0020] Figure 3 It is an overall exploded bottom view schematic diagram of the utility model;

[0021] Figure 4 It is an overall side view schematic diagram of the utility model;

[0022] Figure 5 It is a schematic diagram of the internal structure of the utility model.

[0023] In the figure: 1. upper mold plate; 2. injection port assembly; 3. runner plate; 31. diverter slot; 4. upper mold base; 41. positioning hole; 42. limit plug hole; 5. lower mold base; 51. limit slide groove; 52. upper positioning plug hole; 6. lower mold plate; 61. lower positioning plug hole; 7. positioning plate; 8. limit plug block; 9. outer mold core assembly; 91. limit head; 10. slider assembly; 11. inner mold core column; 12. positioning screw. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings.

[0025] like Figure 1-5As shown, a group-cavity PET bottle blank injection mold comprises an upper template 1, a flow channel plate 3 is provided below the upper template 1, and an injection port assembly 2 is provided in the upper template 1 and the flow channel plate 3, an upper mold base 4 is provided below the flow channel plate 3, and an outer mold core assembly 9 is inserted in the upper mold base 4, a limiting head 91 is provided below the outer mold core assembly 9, and a positioning plate 7 is provided below the limiting head 91, an inner mold core column 11 is inserted below the outer mold core assembly 9 and in the limiting head 91, and a positioning screw 12 is inserted in the inner mold core column 11, slider assemblies 10 are provided on both sides below the positioning plate 7, the slider assemblies 10 are clamped in both sides above the lower mold base 5, the positioning screw 12 passes through the positioning plate 7 and the lower mold base 5 in turn, a lower template 6 is provided below the lower mold base 5, and the bottom of the positioning screw 12 is inserted in the lower template 6, and a limiting plug 8 is provided between the lower mold base 5 and the upper mold base 4.

[0026] An injection port assembly 2 is opened in the middle of the upper mold plate 1, and the upper mold plate 3 is fixedly connected to the bottom of the upper mold plate 1. At the same time, a diversion groove 31 is opened in the middle of the upper part of the runner plate 3, and the injection port assembly 2 is communicated with the diversion groove 31. The upper mold base 4 is fixedly connected to the bottom of the runner plate 3, and a plurality of positioning holes 41 are opened in the upper mold base 4.

[0027] Furthermore, the outer mold core assembly 9 is inserted and fixedly connected into the positioning hole 41 , and the lower part of the outer mold core assembly 9 exceeds the bottom of the upper mold base 4 . Meanwhile, the bottom of the outer mold core assembly 9 is fixedly connected to the bottom of the flow channel plate 3 , and the inner part of the outer mold core assembly 9 is connected to the diversion groove 31 .

[0028] An injection port assembly 2 is provided in the upper mold plate 1, and a runner plate 3 is provided below the upper mold plate 1, so that the injection port assembly 2 extends and is inserted into the runner plate 3 for injection molding. A diverter groove 31 is opened above the runner plate 3 so that it can be diverted to multiple cavities during injection molding. At the same time, an upper mold base 4 is provided below the runner plate 3, and an outer mold core assembly 9 is provided in the positioning hole 41 in the upper mold base 4, so that the injection liquid in the diverter groove 31 is respectively injected into the inner cavity of the outer mold core assembly 9.

[0029] Furthermore, a limiting head 91 is pressed under the outer mold core assembly 9 , and the middle of the limiting head 91 is inserted into and fixedly connected to the positioning plate 7 . The slider assemblies 10 are fixedly connected to both sides of the positioning plate 7 , and there is a distance between the slider assemblies 10 and the limiting head 91 .

[0030] After the limiting head 91 is pressed under the outer mold core component 9, the two are disengaged when the mold is opened, and the internal product part can be obtained.

[0031] Limiting slots 51 are provided on both sides of the upper side of the lower die base 5 , and the slider assembly 10 is inserted and fixedly connected into the limiting slots 51 . Meanwhile, there is a distance between the upper plane of the lower die base 5 and the lower plane of the positioning plate 7 .

[0032] Furthermore, a plurality of upper positioning holes 52 are provided on the upper portion of the lower mold base 5 , into which the bottom of the limit head 91 is inserted for fixed connection, and into which the limit head 91 is inserted for sliding connection to the bottom of the inner mold core column 11 .

[0033] Furthermore, the inner mold core column 11 is inserted upward into the outer mold core assembly 9, and at the same time, a cavity is formed between the inner mold core column 11 and the outer mold core assembly 9. A fixedly connected positioning screw 12 is inserted into the inner mold core column 11, and the bottom of the positioning screw 12 exceeds the bottom of the inner mold core column 11 and the limiting head 91 respectively.

[0034] A lower mold base 5 is provided below the positioning plate 7, and a limiting head 91, an inner mold core column 11 and a positioning screw 12 are provided inside the positioning plate 7 and the lower mold base 5, so that these components are integrated and can be disengaged together when the mold is opened, so that the product parts in the internal cavity are completely exposed.

[0035] The lower mold plate 6 is fixedly connected through the lower mold base 5 , and a plurality of lower positioning holes 61 are opened on the upper part of the lower mold plate 6 , and the lower positioning holes 61 correspond to the upper positioning holes 52 .

[0036] Furthermore, the bottom of the inner mold core column 11 is inserted and fixedly connected in the lower positioning socket 61 , and the bottom of the positioning screw 12 is inserted and fixedly connected in the lower positioning socket 61 , and at the same time, the bottom of the inner mold core column 11 is tightly fitted with the upper plane of the lower template 6 .

[0037] A lower mold plate 6 is provided below the lower mold base 5, and the bottom of the positioning screw 12 is inserted into the lower mold plate 6, so that the lower mold plate 6, the upper inner mold core column 11, and the positioning screw 12 form a whole and are molded together.

[0038] Limiting holes 42 are provided on both sides of the bottom of the upper die base 4 , and limiting plug blocks 8 are fixedly connected to both sides of the upper side of the lower die base 5 , and the upper side of the limiting plug blocks 8 is inserted into the limiting holes 42 for sliding connection.

[0039] A limit block 8 is provided between the upper die base 4 and the lower die base 5 to ensure the accuracy of the interior of the mold cavity during mold closing and to ensure a distance between the upper die base 4 and the structure above it and the lower part.

[0040] Working principle:

[0041] An injection port assembly 2 is provided in the upper mold plate 1, and a flow channel plate 3 is provided below the upper mold plate 1. The injection port assembly 2 is used to perform injection molding in the diverter groove 31 on the flow channel plate 3, so that multiple cavities are injected in the diverter groove 31 to obtain multiple product parts. An upper mold base 4 is provided below the flow channel plate 3, and an outer mold core assembly 9 is provided in the upper mold base 4, so that the two are integrated and separated at the same time when the mold is opened. An inner mold core column 11 is inserted into the outer mold core assembly 9, and a positioning screw 12 is inserted into the inner mold core column 11, and a cavity is formed between the inner mold core column 11 and the inner mold core column 11. At the same time, a limiting head 91 is provided below the inner mold core column 11, and the limiting head 9 1 is arranged in the positioning plate 7, and a lower die seat 5 is arranged below the positioning plate 7, and the lower part of the limiting head 91 is fixedly connected in the lower die seat 5, so that the lower die seat 5, the positioning plate 7 and the limiting head 91 are integrated, and a lower template 6 is arranged below the lower die seat 5, and the bottom of the positioning screw 12 is inserted and fixedly connected in the lower template 6. When the mold is opened, the lower template 6 will be disengaged together with the upper lower die seat 5, the limiting head 91, the positioning plate 7, the inner mold core column 11 and the positioning screw 12, and the upper outer mold core assembly 9, the upper die seat 4, the runner plate 3 and the upper template 1 are disengaged together, and the product parts are obtained, and the product parts are conveniently taken out of the inner mold core column 11.

[0042] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways without departing from the spirit of the present invention.

[0043] Although this article uses more terms such as 1, upper template; 2, injection port assembly; 3, runner plate; 31, diverter groove; 4, upper mold base; 41, positioning hole; 42, limit plug hole; 5, lower mold base; 51, limit slide; 52, upper positioning plug hole; 6, lower template; 61, lower positioning plug hole; 7, positioning plate; 8, limit plug block; 9, outer mold core assembly; 91, limit head; 10, slider assembly; 11, inner mold core column; 12, positioning screw, etc., it does not exclude the possibility of using other terms. The use of these terms is only for more convenient description and explanation of the essence of the utility model. It is contrary to the spirit of the utility model to interpret them as any additional restrictions.

Claims

1. A group-cavity PET preform injection mold, comprising an upper mold plate (1), characterized in that: A flow channel plate (3) is provided below the upper mold plate (1), and an injection port assembly (2) is provided inside the upper mold plate (1) and the flow channel plate (3); an upper mold base (4) is provided below the flow channel plate (3), and an outer mold core assembly (9) is inserted into the upper mold base (4); a limit head (91) is provided below the outer mold core assembly (9), and a positioning plate (7) is provided below the limit head (91); an inner mold core column (11) is inserted below the outer mold core assembly (9) and inside the limit head (91), and the inner mold A positioning screw (12) is inserted into the core column (11), and slider assemblies (10) are provided on both sides below the positioning plate (7). The slider assemblies (10) are clamped in both sides above the lower die base (5). The positioning screw (12) passes through the positioning plate (7) and the lower die base (5) in turn. A lower mold plate (6) is provided below the lower die base (5), and the bottom of the positioning screw (12) is inserted into the lower mold plate (6). A limiting plug block (8) is provided between the lower die base (5) and the upper die base (4) on both sides.

2. The group-cavity PET preform injection mold according to claim 1, characterized in that: An injection port assembly (2) is provided in the middle of the upper mold plate (1), and a flow channel plate (3) is fixedly connected to the lower portion of the upper mold plate (1). A diversion groove (31) is provided in the middle portion of the upper portion of the flow channel plate (3), the injection port assembly (2) is in communication with the diversion groove (31), and an upper mold base (4) is fixedly connected to the lower portion of the flow channel plate (3), and a plurality of positioning holes (41) are provided in the upper mold base (4).

3. The group-cavity PET preform injection mold according to claim 2, characterized in that: The positioning hole (41) is inserted and fixedly connected with an outer mold core component (9), and the lower part of the outer mold core component (9) exceeds the bottom of the upper mold base (4). At the same time, the bottom of the outer mold core component (9) is fixedly connected to the bottom of the flow channel plate (3), and the inner part of the outer mold core component (9) is connected to the diverter groove (31).

4. The group-cavity PET preform injection mold according to claim 3, characterized in that: A limiting head (91) is pressed under the outer mold core assembly (9), and the middle of the limiting head (91) is inserted into a fixedly connected positioning plate (7). Slider assemblies (10) are fixedly connected to both sides of the positioning plate (7), and there is a distance between the slider assembly (10) and the limiting head (91).

5. The group-cavity PET preform injection mold according to claim 4, characterized in that: The lower die base (5) is provided with limiting sliding grooves (51) on both sides above the lower die base (5), and a sliding block assembly (10) is inserted and fixedly connected into the limiting sliding grooves (51), and a distance is provided between the upper plane of the lower die base (5) and the lower plane of the positioning plate (7).

6. The group-cavity PET preform injection mold according to claim 5, characterized in that: A plurality of upper positioning holes (52) are provided on the upper portion of the lower die seat (5), the bottom of the fixedly connected limiting head (91) is inserted into the upper positioning holes (52), and the bottom of the slidingly connected inner die core column (11) is inserted into the limiting head (91).

7. The group-cavity PET preform injection mold according to claim 6, characterized in that: The inner mold core column (11) is inserted upward into the outer mold core assembly (9), and a molding cavity is formed between the inner mold core column (11) and the outer mold core assembly (9). A fixedly connected positioning screw (12) is inserted into the inner mold core column (11), and the bottom of the positioning screw (12) exceeds the bottom of the inner mold core column (11) and the limiting head (91) respectively.

8. The group-cavity PET preform injection mold according to claim 7, characterized in that: The lower mold base (5) is fixedly connected to the lower mold plate (6) at the bottom, and a plurality of lower positioning holes (61) are provided at the top of the lower mold plate (6), and the lower positioning holes (61) correspond to the upper positioning holes (52).

9. The group-cavity PET preform injection mold according to claim 8, characterized in that: The bottom of the inner mold core column (11) is inserted and fixedly connected into the lower positioning hole (61), and the bottom of the positioning screw (12) is inserted and fixedly connected into the lower positioning hole (61), and at the same time, the bottom of the inner mold core column (11) is tightly fitted with the upper plane of the lower mold plate (6).

10. The group-cavity PET preform injection mold according to claim 9, characterized in that: The bottom sides of the upper die seat (4) are provided with limit plug holes (42), the upper sides of the lower die seat (5) are fixedly connected with limit plug blocks (8), and the upper side of the limit plug blocks (8) is inserted into the limit plug holes (42) for sliding connection.

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