Split type mold core structure of high-precision bottle blank injection mold
By adopting a split-type core structure in high-precision bottle preform injection molds, the problem of the bottle preform stuck when the integral mold core is opened is solved, and the effect of reducing scrapping and improving work efficiency is achieved.
Patent Information
- Application Number
- CN202420697922.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-07
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-04-07
AI Technical Summary
In existing high-precision preform injection molds, the integral mold core mechanism can easily cause the preform to be stuck when opening the mold, causing scratches or recesses, resulting in product scrapping or reshaping, increasing manual labor and reducing work efficiency.
The split die core structure is adopted, and the separation design of the moving die core upper plate and the fixed die core upper plate, and components such as the connection plate, diverting groove and support spacer block are used to achieve the separation of the die core, preventing the bottle preform from being stuck in the cavity, and preventing scrapping and remodeling.
It effectively avoids the problem of stuck shells when opening the preform, reduces the occurrence of product scrapping and remodeling, reduces the amount of manual labor, and improves work efficiency.
Smart Images
Figure CN222792622U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of injection molds and relates to a split mold core structure of a high-precision 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 high-precision bottle blank injection molding has a mold core mechanism set inside the mold, which is an integral type. However, due to the length limit of the bottle blank, the mold core often gets stuck in the bottle blank when the mold is opened, 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, in response to the above problems, a split mold core structure of a high-precision bottle blank injection mold is proposed. Utility Model Content
[0003] The utility model aims to solve the above problems and provides a split core structure of a high-precision preform injection mold.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] A split core structure of a high-precision preform injection mold comprises a movable mold core upper plate, a connecting plate is provided below the movable mold core upper plate, and a liquid inlet is provided in the middle of the movable mold core upper plate, and the liquid inlet is connected to the connecting plate below, a movable mold core lower plate is provided below the connecting plate, support spacer blocks are provided on both sides below the movable mold core lower plate, and the support spacer blocks are inserted on both sides above the fixed mold core upper plate below, a bottom plate and a limit plug block are provided above the middle of the fixed mold core upper plate, and a positioning plate is provided above the bottom plate, and a fixed mold core lower plate is provided below the fixed mold core upper plate.
[0006] In the above-mentioned split core structure of the high-precision preform injection mold, a liquid inlet is provided at the center of the upper plate of the movable core, and the liquid inlet is connected to the injection port assembly above the mold; a connecting plate is fixedly connected to the lower part of the upper plate of the movable core, and a diverter groove is provided in the middle part above the connecting plate, and a molding port is provided at the bottom of the diverter groove, and the diverter groove and the molding port are both connected to the liquid inlet.
[0007] In the above-mentioned split core structure of the high-precision preform injection mold, the lower plate of the movable mold core is fixedly connected to the connecting plate below, a plurality of middle cavities of the preform are opened in the middle of the lower plate of the movable mold core, and the middle cavities of the preform correspond to the molding ports, and upper slots are opened on both sides of the bottom of the lower plate of the movable mold core.
[0008] In the above-mentioned split core structure of the high-precision bottle blank injection mold, the upper slot is inserted into the sliding connection support spacer above, the bottom of the support spacer block is inserted into the two sides above the fixed connection fixed mold core upper plate, and lower slots are opened on both sides of the fixed mold core upper plate, and there is a distance between the fixed mold core upper plate and the movable mold core lower plate.
[0009] In the above-mentioned split core structure of the high-precision preform injection mold, slots are provided on both sides above the upper plate of the fixed core, and the two slots are placed between two supporting spacer blocks, and fixed connection limit blocks are inserted into the slots.
[0010] In the above-mentioned split core structure of the high-precision preform injection mold, the bottom plate is fixedly connected between the limiting plug blocks, and the bottom of the bottom plate is tightly fitted with the upper middle part of the fixed core upper plate.
[0011] In the above-mentioned split core structure of the high-precision preform injection mold, a positioning plate is fixedly connected to the top of the bottom plate, and both ends of the positioning plate are tightly fitted with the inner sides of the two supporting spacer blocks. At the same time, there is a gap between the top of the positioning plate and the bottom of the lower plate of the movable core.
[0012] In the split core structure of the high-precision preform injection mold, a plurality of preform lower cavities are provided in the positioning plate, the bottom plate and the fixed core upper plate.
[0013] In the above-mentioned split mold core structure of the high-precision preform injection mold, the lower part of the fixed mold core is fixedly connected to the lower part of the fixed mold core.
[0014] In the above-mentioned split mold core structure of the high-precision preform injection mold, positioning holes are provided in the movable mold core lower plate, the fixed mold core upper plate and the fixed mold core lower plate.
[0015] Compared with the existing technology, the advantages of the utility model are:
[0016] The utility model has a connecting plate below the upper plate of the movable mold core, and a liquid inlet is provided on the upper plate of the movable mold core, and a diversion groove is provided inside the upper part of the connecting plate, a movable mold core lower plate is provided below the connecting plate, supporting spacer blocks are provided on both sides below the lower plate of the movable mold core, and a fixed mold core upper plate is provided below the supporting spacer blocks, a positioning plate, a limiting plug block and a bottom plate are provided above the upper plate of the fixed mold core, and there is a distance between the positioning plate and the lower plate of the movable mold core, and a fixed mold core lower plate is provided below the upper plate of the fixed mold core. By utilizing the split mold core provided inside the mold, the entire mold core structure can be separated when opening the mold, so that the internal bottle blank is not stuck in the mold cavity, thereby avoiding the situation that the bottle blank is stuck in the mold 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 It is a schematic diagram of the overall side view of the utility model
[0020] Figure 3 It is an overall exploded top view schematic diagram of the utility model;
[0021] Figure 4 It is an overall exploded bottom view schematic diagram of the utility model;
[0022] Figure 5 It is a schematic diagram of the internal structure of the upper plate of the fixed mold core of the utility model.
[0023] In the figure: 1. upper plate of movable mold core; 11. liquid inlet; 2. connecting plate; 21. diverter slot; 22. forming port; 3. lower plate of movable mold core; 31. upper slot; 4. upper plate of fixed mold core; 41. lower slot; 42. card slot; 5. lower plate of fixed mold core; 6. positioning plate; 7. limit plug block; 8. support spacer block; 9. bottom plate; 10. positioning hole. DETAILED DESCRIPTION
[0024] The utility model is further described below in conjunction with the accompanying drawings.
[0025] like Figure 1-5 As shown, a split core structure of a high-precision preform injection mold comprises a movable core upper plate 1, a connecting plate 2 is provided below the movable core upper plate 1, and a liquid inlet 11 is provided in the middle of the movable core upper plate 1, and the liquid inlet 11 is connected to the connecting plate 2 below, a movable core lower plate 3 is provided below the connecting plate 2, support spacer blocks 8 are provided on both sides below the movable core lower plate 3, and the support spacer blocks 8 are inserted on both sides above the fixed core upper plate 4, a bottom plate 9 and a limit plug 7 are provided above the middle of the fixed core upper plate 4, and a positioning plate 6 is provided above the bottom plate 9, and a fixed core lower plate 5 is provided below the fixed core upper plate 4.
[0026] A liquid inlet 11 is opened through the center of the upper plate 1 of the movable mold core, and the liquid inlet 11 is connected to the injection port assembly above the mold. The lower part of the upper plate 1 of the movable mold core is fixedly connected to the connecting plate 2, and a diverter groove 21 is opened in the middle part above the connecting plate 2. At the same time, a molding port 22 is opened at the bottom of the diverter groove 21, and the diverter groove 21 and the molding port 22 are both connected to the liquid inlet 11.
[0027] A movable mold of a mold is provided above the movable mold core upper plate 1 for wrapping, and an injection port assembly is provided in the movable mold and connected to the liquid inlet 11 of the movable mold core upper plate 1, so that the internal structure above the movable mold core upper plate 1 is formed, and a connecting plate 2 is provided below the movable mold core upper plate 1, and a diverter groove 21 is provided above the connecting plate 2. When the injection liquid flows into the diverter groove 21, the injection is continued downward from the molding port 22 of the connecting plate 2, so that the entire structure is formed inside.
[0028] Furthermore, the connecting plate 2 is fixedly connected to the movable mold core lower plate 3 below, and a plurality of bottle blank middle cavities are opened in the middle of the movable mold core lower plate 3, and the bottle blank middle cavities correspond to the molding port 22, and upper slots 31 are opened on both sides of the bottom of the movable mold core lower plate 3.
[0029] After the movable mold core lower plate 3 is arranged under the connecting plate 2, the two are bonded together, and a molding port 22 and a middle cavity of the bottle blank are opened inside the two. When the injection molding liquid is injected into the two, the upper part and the middle part of the bottle blank are formed.
[0030] Furthermore, the upper slot 31 is inserted into the sliding connection support spacer block 8, the bottom of the support spacer block 8 is inserted into the two sides of the fixed connection upper plate 4 of the fixed mold core, and the lower slots 41 are opened on both sides of the upper plate 4 of the fixed mold core, and there is a distance between the upper plate 4 of the fixed mold core and the lower plate 3 of the movable mold core.
[0031] After a support spacer block 8 is provided between the lower plate 3 of the movable mold core and the upper plate 4 of the fixed mold core, the support spacer block 8 is used as the middle part, so that the upper parts are combined with the lower parts to form two mold core mechanisms, and the middle part is wrapped by the mold to prevent the injection liquid from overflowing. At the same time, when the mold is opened, the two parts can be separated, so that the cavity part of the bottle blank becomes shorter to avoid jamming.
[0032] Slots 42 are provided on both sides of the upper plate 4 of the fixed mold core, and the two slots 42 are placed between the two supporting spacer blocks 8 , and the fixed connection limit plug blocks 7 are inserted into the slots 42 .
[0033] Furthermore, the bottom plate 9 is fixedly connected between the limiting plug blocks 7, and the bottom of the bottom plate 9 is tightly fitted with the upper middle part of the fixed mold core upper plate 4.
[0034] Furthermore, the top of the bottom plate 9 is fixedly connected to the positioning plate 6 , and both ends of the positioning plate 6 are tightly fitted with the inner sides of the two supporting spacer blocks 8 , while there is a gap between the top of the positioning plate 6 and the bottom of the lower plate 3 of the movable mold core.
[0035] Furthermore, a plurality of preform lower cavities are formed in the positioning plate 6 , the bottom plate 9 and the fixed mold core upper plate 4 .
[0036] A bottom plate 9 and a positioning plate 6 are provided above the upper plate 4 of the fixed mold core, and a lower cavity of the bottle blank is opened in the three. After the mold is opened, the entire bottle blank will be inserted into the lower cavity of the bottle blank, so that the split upper part of the mold core structure will not be stuck outside the bottle blank. At the same time, a limiting plug block 7 is provided on the upper plate 4 of the fixed mold core, which only needs to be pulled out during installation and disassembly.
[0037] The fixed mold core lower plate 5 is fixedly connected through the lower side of the fixed mold core upper plate 4.
[0038] Furthermore, positioning holes 10 are formed in the movable mold core lower plate 3 , the fixed mold core upper plate 4 and the fixed mold core lower plate 5 .
[0039] Positioning holes 10 are provided on the movable mold core lower plate 3, the fixed mold core upper plate 4 and the fixed mold core lower plate 5 to accurately ensure the internal cavity when the mold is closed.
[0040] Working principle:
[0041] A connecting plate 2 is provided below the movable mold core upper plate 1, and a liquid inlet 11 is provided on the movable mold core upper plate 1. At the same time, a diverter groove 21 is provided inside the upper part of the connecting plate 2. The injection liquid is injected into the diverter groove 21 through the liquid inlet 11. A plurality of molding ports 22 are provided below the diverter groove 21. After the injection liquid reaches the diverter groove 21, it continues downward through the molding ports 22 to obtain a batch of bottle blanks inside. A movable mold core lower plate 3 is provided below the connecting plate 2, and an upper mold cavity of the bottle blank is opened in the connecting plate 2 and the movable mold core lower plate 3. The upper mold cavity of the bottle blank is injected by the molding ports 22. Support spacer blocks 8 are provided on both sides below the movable mold core lower plate 3, and a fixed mold core upper plate 4 is provided below the support spacer block 8. A positioning plate 6 and a limit plug are provided above the fixed mold core upper plate 4. 7 and the bottom plate 9, and there is a distance between the positioning plate 6 and the lower plate 3 of the movable mold core. At the same time, this middle distance is placed inside the mold to seal the external parts and continue to form inside. The entire mold core mechanism is split by using this middle distance. A fixed mold core lower plate 5 is provided below the fixed mold core upper plate 4 for support, and the product parts formed above are supported. When the mold is closed, the positioning hole 10 is first used to ensure the accuracy of the internal cavity of the entire structure, and then the liquid inlet 11 is used to inject the entire mold core structure to form a batch of finished bottle blanks inside. When the mold is opened, it is directly detached from the lower plate 3 of the movable mold core and the upper parts structure, so that the completed bottle blank is inserted into the positioning plate 6, the bottom plate 9 and the upper plate 4 of the fixed mold core, and finally the bottle blank can be taken away.
[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 plate of movable mold core; 11. liquid inlet; 2. connecting plate; 21. diverter slot; 22. molding port; 3. lower plate of movable mold core; 31. upper slot; 4. upper plate of fixed mold core; 41. lower slot; 42. slot; 5. lower plate of fixed mold core; 6. positioning plate; 7. limit plug block; 8. support spacer block; 9. bottom plate; 10. positioning hole, it does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain 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 split core structure of a high-precision preform injection mold, comprising a movable core upper plate (1), characterized in that: A connecting plate (2) is provided below the movable mold core upper plate (1), and a liquid inlet (11) is provided in the middle of the movable mold core upper plate (1), and the liquid inlet (11) is connected to the lower connecting plate (2). A movable mold core lower plate (3) is provided below the connecting plate (2), and supporting spacer blocks (8) are provided on both sides below the movable mold core lower plate (3). The supporting spacer blocks (8) are inserted on both sides above the fixed mold core upper plate (4), and a bottom plate (9) and a limiting plug block (7) are provided above the middle of the fixed mold core upper plate (4), and a positioning plate (6) is provided above the bottom plate (9). A fixed mold core lower plate (5) is provided below the fixed mold core upper plate (4).
2. The split core structure of the high-precision preform injection mold according to claim 1 is characterized in that: A liquid inlet (11) is provided at the center of the upper plate (1) of the movable mold core, and the liquid inlet (11) is connected to the injection port assembly above the mold; a connecting plate (2) is fixedly connected below the upper plate (1) of the movable mold core, and a diverter groove (21) is provided in the middle of the upper part of the connecting plate (2); a molding port (22) is provided at the bottom of the diverter groove (21); and the diverter groove (21) and the molding port (22) are both connected to the liquid inlet (11).
3. The split core structure of the high-precision preform injection mold according to claim 2 is characterized in that: The lower portion of the connecting plate (2) is fixedly connected to a movable mold core lower plate (3), a plurality of preform middle cavities are provided in the middle of the movable mold core lower plate (3), and the preform middle cavities correspond to the molding openings (22), and upper slots (31) are provided on both sides of the bottom of the movable mold core lower plate (3).
4. The split core structure of the high-precision preform injection mold according to claim 3 is characterized in that: The upper slot (31) is inserted into the upper part of the slidingly connected support spacer block (8), the bottom of the support spacer block (8) is inserted into the upper two sides of the fixedly connected fixed mold core upper plate (4), and lower slots (41) are opened in the two sides of the fixed mold core upper plate (4), and there is a distance between the fixed mold core upper plate (4) and the movable mold core lower plate (3).
5. The split core structure of the high-precision preform injection mold according to claim 4 is characterized in that: The upper sides of the fixed mold core upper plate (4) are provided with card slots (42), and the two card slots (42) are arranged between two supporting spacer blocks (8), and the fixed connection limit plug blocks (7) are inserted into the card slots (42).
6. The split core structure of the high-precision preform injection mold according to claim 5 is characterized in that: The bottom plate (9) is fixedly connected between the limiting plug blocks (7), and the bottom of the bottom plate (9) is tightly fitted to the upper middle part of the fixed mold core upper plate (4).
7. The split core structure of the high-precision preform injection mold according to claim 6 is characterized in that: The top of the bottom plate (9) is fixedly connected to a positioning plate (6), and the two ends of the positioning plate (6) are tightly fitted with the inner sides of the two supporting spacer blocks (8), while there is a gap between the top of the positioning plate (6) and the bottom of the lower plate (3) of the movable mold core.
8. The split core structure of the high-precision preform injection mold according to claim 7 is characterized in that: The positioning plate (6), the bottom plate (9) and the fixed mold core upper plate (4) are all provided with a plurality of lower mold cavities for the bottle blank.
9. The split core structure of the high-precision preform injection mold according to claim 8 is characterized in that: The lower portion of the fixed mold core upper plate (4) is fixedly connected to the fixed mold core lower plate (5).
10. The split core structure of the high-precision preform injection mold according to claim 9 is characterized in that: Positioning holes (10) are provided in the movable mold core lower plate (3), the fixed mold core upper plate (4) and the fixed mold core lower plate (5).