Multi-cavity rapid switching automatic injection mold

Abstract

The utility model provides a kind of multiple cavity quick switching automatic injection mold, belong to mould technical field, to solve the problem that mould needs to be periodically sprayed release agent in cavity when using, need to spend long time, including lower mould positioning piece, upper mould positioning piece, mould positioning rod, fixed mould core, mobile mould core, sliding mounting plate and sliding compression plate;Upper mould positioning piece is located above lower mould positioning piece;Mould positioning rod is slidably connected in the left side or right side of upper mould positioning piece or the left side or right side of lower mould positioning piece;Fixed mould core is fixedly connected in the upper portion of lower mould positioning piece;Mobile mould core is fixedly connected in the lower portion of upper mould positioning piece;Sliding mounting plate is slidably connected in the upper portion of fixed mould core or the lower portion of mobile mould core;Sliding compression plate is slidably connected in the upper portion of fixed mould core or the lower portion of mobile mould core;The utility model can automatically spray release agent, save a lot of time, improve the spraying efficiency of release agent.

Description

Technical Field

[0001] This utility model belongs to the field of mold technology, and more specifically, it relates to an automatic injection mold with rapid switching of multiple cavities. Background Technology

[0002] Multi-cavity injection molds have multiple identical or different cavities, enabling the simultaneous production of multiple plastic products in a single injection molding process using an automated injection molding system. During injection, plastic granules are added to the hopper of the injection molding machine and conveyed forward by the rotation of the screw. During this conveying process, the plastic is heated and melted. When the molten plastic reaches the set temperature and pressure, the injection unit of the injection molding machine injects the molten plastic into the cavities of the multi-cavity injection mold at high speed and high pressure through the mold's gating system. After the cavities are filled, the injection molding machine enters the holding pressure and cooling stage until the plastic product is completely cooled and solidified. After cooling, the mold opening and closing device of the injection molding machine drives the moving mold to separate from the fixed mold, allowing the product to be ejected from the mold.

[0003] For example, CN209971367U discloses an automatic injection mold, including a female mold fixing plate, a female mold template, a pull plate, a female mold panel, a male mold panel, a male mold support plate, a pair of male mold feet, and a male mold fixing plate stacked on the outside along the vertical direction; and a mold core male plate, a mold core female plate, a mold core pad, a first ejector plate, and a second ejector plate arranged on the inside along the vertical direction. The automatic injection mold also includes a nylon mold clamping device, a mechanism pad located above the male mold fixing plate, a pair of mechanism support plates located above the mechanism pad and spaced apart in the horizontal direction, and a female mold pressure block located above the mechanism support plate. The second ejector plate is provided with a reset rod. The automatic injection mold also includes a connecting rod connecting the second ejector plate and the mechanism pad. The automatic injection mold of this utility model can effectively reduce the mold space and improve the mold stability.

[0004] Based on the above, mold release agent needs to be sprayed into the cavity periodically during use, which takes a long time. This not only increases the workload of the workers, but also interrupts the injection molding process, affecting the production efficiency of the product. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a multi-cavity quick-switching automatic injection mold, which solves the problem that the mold needs to be sprayed with release agent into the cavity periodically during use, which takes a long time. This not only increases the workload of the workers but also interrupts the injection process, affecting the production efficiency of the product.

[0006] The purpose and effect of this utility model of a multi-cavity rapid switching automatic injection mold are achieved by the following specific technical means:

[0007] A multi-cavity quick-switching automatic injection mold includes a lower mold positioning component, an upper mold positioning component, mold positioning rods, a fixed mold core, a movable mold core, a limiting structure, a sliding mounting plate, an anti-blocking structure, and a sliding pressure plate. The upper mold positioning component is located above the lower mold positioning component. Eight mold positioning rods are provided, and the eight mold positioning rods are respectively slidably connected to the left and right sides of the upper mold positioning component or the left and right sides of the lower mold positioning component. The fixed mold core is fixedly connected to the upper part of the lower mold positioning component. The movable mold core is fixedly connected to the lower part of the upper mold positioning component. The moving mold core and the fixed mold core are evenly distributed with multiple atomizing nozzles in their middle parts; the limiting structure is located on the outside of the lower mold positioning component; multiple sliding mounting plates are provided, and the multiple sliding mounting plates are evenly distributed and slidably connected to the upper part of the fixed mold core or the lower part of the moving mold core; the anti-blocking structure is located on the upper part of the fixed mold core; multiple sliding pressure plates are provided, and the multiple sliding pressure plates are evenly distributed and slidably connected to the upper part of the fixed mold core or the lower part of the moving mold core, and the upper and lower sides of the multiple sliding pressure plates are provided with inclined surfaces.

[0008] Furthermore, the limiting structure includes reversing transmission gears and limiting transmission racks; four reversing transmission gears are provided, and the four reversing transmission gears are respectively rotatably connected to the left and right sides of the upper mold positioning member or the left and right sides of the lower mold positioning member; eight limiting transmission racks are provided, and the eight limiting transmission racks are respectively fixedly connected to the inner side of the eight mold positioning rods, and the eight limiting transmission racks respectively mesh with the four reversing transmission gears.

[0009] Furthermore, the limiting structure also includes a first reset elastic element and a limiting boss; eight first reset elastic elements are provided, and the eight mold positioning rods are elastically connected to the upper mold positioning element or the lower mold positioning element through the eight first reset elastic elements; four limiting bosses are provided, and the four limiting bosses are evenly distributed and fixedly connected to the upper part of the fixed mold core, and a groove is provided in the middle of the four limiting bosses.

[0010] Furthermore, the limiting structure also includes limiting slots and limiting rods; four limiting slots are provided, and the four limiting slots are respectively opened in the middle of the four limiting bosses; four limiting rods are provided, and the four limiting rods are evenly distributed and fixedly connected to the lower end face of the movable mold core, and the lower part of each of the four limiting rods is provided with a groove.

[0011] Furthermore, the anti-clogging structure includes a second reset elastic element and a limiting protrusion; multiple second reset elastic elements are provided, and multiple sliding mounting plates are elastically connected to the fixed mold core or the movable mold core through multiple second reset elastic elements; the outer side of each of the multiple sliding mounting plates is provided with a start button for the atomizing nozzle, and the start button is a push-button switch; multiple limiting protrusions are provided, and the multiple limiting protrusions are respectively slidably connected to the inner side of the multiple sliding mounting plates.

[0012] Furthermore, the anti-blocking structure also includes a third reset elastic element and a pressure-bearing inclined block; multiple third reset elastic elements are provided, and multiple limiting protrusions are elastically connected to multiple sliding mounting plates through multiple third reset elastic elements; multiple pressure-bearing inclined blocks are provided, and multiple pressure-bearing inclined blocks are respectively fixedly connected to the middle of multiple limiting protrusions.

[0013] Furthermore, the anti-blocking structure also includes extrusion inclined blocks and fourth reset elastic elements; multiple extrusion inclined blocks are provided, and the multiple extrusion inclined blocks are respectively fixedly connected to the outside of the multiple sliding pressure plates; multiple fourth reset elastic elements are provided, and the multiple sliding pressure plates are elastically connected to the fixed mold core or the movable mold core through the multiple fourth reset elastic elements.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This invention enables rapid mold switching through the simultaneous action of multiple mold positioning rods, effectively improving mold replacement efficiency, avoiding the inconvenience of bolt fixing, reducing operational difficulty, and enhancing mold installation convenience. Limiting protrusions and sliding mounting plates prevent the atomizing nozzle from contacting the molten plastic, effectively preventing nozzle clogging. During mold closing, it automatically sprays release agent, eliminating the inconvenience of manual respraying, saving significant time, improving release agent application efficiency, effectively reducing worker workload, ensuring the continuity of the injection molding process, and increasing product production efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram showing the positional relationship between the mold positioning rod and the reversing transmission gear of this utility model.

[0018] Figure 3 This is a schematic diagram showing the position of the movable mold core of this utility model.

[0019] Figure 4 This is a schematic diagram showing the position of the limiting rod of this utility model.

[0020] Figure 5 This is a schematic diagram of the position of the limiting slot of this utility model.

[0021] Figure 6 This is a schematic diagram showing the disassembled structure of the sliding mounting plate and the sliding pressure plate of this utility model.

[0022] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0023] 1. Lower mold positioning component; 101. Reversing transmission gear; 2. Upper mold positioning component; 3. Mold positioning rod; 301. Limiting transmission rack; 302. First reset elastic component; 4. Fixed mold core; 401. Limiting boss; 402. Limiting slot; 5. Moving mold core; 501. Limiting insert; 6. Sliding mounting plate; 601. Second reset elastic component; 602. Limiting protrusion; 603. Third reset elastic component; 604. Pressure-bearing inclined block; 7. Sliding pressure plate; 701. Extrusion inclined block; 702. Fourth reset elastic component. Detailed Implementation

[0024] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. Example 1

[0025] As attached Figure 1 To be continued Figure 2 As shown:

[0026] This utility model provides a multi-cavity quick-switching automatic injection mold, including a lower mold positioning component 1, an upper mold positioning component 2, mold positioning rods 3, a fixed mold core 4, a movable mold core 5, and a limiting structure; the upper mold positioning component 2 is located above the lower mold positioning component 1; eight mold positioning rods 3 are provided, and the eight mold positioning rods 3 are respectively slidably connected to the left and right sides of the upper mold positioning component 2 or the left and right sides of the lower mold positioning component 1; the fixed mold core 4 is fixedly connected to the upper part of the lower mold positioning component 1; the movable mold core 5 is fixedly connected to the lower part of the upper mold positioning component 2; multiple atomizing nozzles are evenly distributed in the middle of the movable mold core 5 and the fixed mold core 4; the limiting structure is located on the outside of the lower mold positioning component 1.

[0027] The limiting structure includes reversing transmission gears 101 and limiting transmission racks 301. There are four reversing transmission gears 101, which are rotatably connected to the left and right sides of the upper mold positioning member 2 or the left and right sides of the lower mold positioning member 1, respectively. There are eight limiting transmission racks 301, which are fixedly connected to the inner side of eight mold positioning rods 3, and the eight limiting transmission racks 301 mesh with the four reversing transmission gears 101 respectively.

[0028] The limiting structure also includes a first reset elastic element 302 and a limiting boss 401; there are eight first reset elastic elements 302, and the eight mold positioning rods 3 are elastically connected to the upper mold positioning element 2 or the lower mold positioning element 1 through the eight first reset elastic elements 302; there are four limiting bosses 401, and the four limiting bosses 401 are evenly distributed and fixedly connected to the upper part of the fixed mold core 4, and the middle part of the four limiting bosses 401 is provided with a groove.

[0029] The limiting structure also includes limiting slots 402 and limiting rods 501; four limiting slots 402 are provided, and the four limiting slots 402 are respectively opened in the middle of the four limiting bosses 401; four limiting rods 501 are provided, and the four limiting rods 501 are evenly distributed and fixedly connected to the lower end face of the movable mold core 5, and the lower part of each of the four limiting rods 501 is provided with a groove.

[0030] The specific usage and function of this embodiment are as follows: When it is necessary to replace the multi-cavity automatic injection mold, first push the mold positioning rod 3 so that the mold positioning rod 3 leaves the positioning hole at the installation location. At this time, the mold positioning rod 3 will drive the limit transmission rack 301 to move, so that the limit transmission rack 301 pushes the reversing transmission gear 101 to rotate. When the reversing transmission gear 101 moves, it will cause the limit transmission rack 301 and the mold positioning rod 3 on the other side to retract, thereby quickly completing the mold assembly and disassembly. After the mold is assembled, the first reset elastic element 302 will push each mold positioning rod 3 to automatically reset. When the mold is closed, the upper mold positioning element 2 and the moving mold core 5 move downward so that the limit insertion rod 501 is inserted into the limit slot 402 of the fixed mold core 4. At this time, the limit boss 401 will be stuck on the outside of the limit insertion rod 501. Example 2

[0031] As attached Figure 3 To be continued Figure 6 As shown:

[0032] Based on Embodiment 1, it also includes a sliding mounting plate 6, an anti-blocking structure, and a sliding pressure plate 7; multiple sliding mounting plates 6 are provided, and multiple sliding mounting plates 6 are evenly distributed and slidably connected to the upper part of the fixed mold core 4 or the lower part of the movable mold core 5; the anti-blocking structure is provided on the upper part of the fixed mold core 4; multiple sliding pressure plates 7 are provided, and multiple sliding pressure plates 7 are evenly distributed and slidably connected to the upper part of the fixed mold core 4 or the lower part of the movable mold core 5, and inclined surfaces are provided on both the upper and lower sides of the multiple sliding pressure plates 7.

[0033] The anti-blocking structure includes a second reset elastic element 601 and a limiting protrusion 602. Multiple second reset elastic elements 601 are provided, and multiple sliding mounting plates 6 are elastically connected to the fixed mold core 4 or the movable mold core 5 through multiple second reset elastic elements 601. The outer side of each of the multiple sliding mounting plates 6 is provided with a start button for the atomizing nozzle, and the start buttons are all push-button switches. Multiple limiting protrusions 602 are provided, and the multiple limiting protrusions 602 are slidably connected to the inner side of the multiple sliding mounting plates 6 respectively.

[0034] The anti-blocking structure also includes a third reset elastic element 603 and a pressure-bearing inclined block 604; multiple third reset elastic elements 603 are provided, and multiple limiting protrusions 602 are elastically connected to multiple sliding mounting plates 6 through multiple third reset elastic elements 603; multiple pressure-bearing inclined blocks 604 are provided, and multiple pressure-bearing inclined blocks 604 are respectively fixedly connected to the middle of multiple limiting protrusions 602.

[0035] The anti-blocking structure also includes a compression inclined block 701 and a fourth reset elastic element 702; multiple compression inclined blocks 701 are provided, and multiple compression inclined blocks 701 are respectively fixedly connected to the outside of multiple sliding pressure plates 7; multiple fourth reset elastic elements 702 are provided, and multiple sliding pressure plates 7 are elastically connected to the fixed mold core 4 or the movable mold core 5 through multiple fourth reset elastic elements 702.

[0036] The specific usage and function of this embodiment are as follows: During the process of inserting the limiting rod 501 into the limiting slot 402, the limiting boss 401 and the limiting rod 501 will press the inclined surface of the sliding pressure plate 7, causing the sliding pressure plate 7 to drive the pressing inclined block 701 to slide and press the pressing inclined block 604. After being pressed, the pressing inclined block 604 will drive the limiting boss 602 to move upward. After the pressing inclined block 701 moves to the maximum distance, it will push the sliding mounting plate 6 to slide. When the sliding mounting plate 6 slides, the atomizing nozzle will be exposed and the start button of the atomizing nozzle will be pressed, causing the atomizing nozzle to spray the release agent outward. After the sliding pressure plate 7 is aligned with the groove, the second reset elastic member 601, the third reset elastic member 603 and the fourth reset elastic member 702 will respectively push the sliding mounting plate 6, the limiting boss 602 and the sliding pressure plate 7 to reset. At this time, the limiting boss 602 and the sliding mounting plate 6 will block the outside of the atomizing nozzle, so that the plastic melt will not come into contact with the atomizing nozzle.

[0037] The following points should be noted in this article:

[0038] 1. The accompanying drawings of this embodiment only involve the structures involved in this embodiment; other structures can refer to the general design.

[0039] 2. Where there is no conflict, this embodiment and the features in the embodiment can be combined with each other to obtain new embodiments.

[0040] The above are merely specific implementations of this embodiment, but the protection scope of this embodiment is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this embodiment should be included within the protection scope of this embodiment. Therefore, the protection scope of this embodiment should be determined by the protection scope of the claims.

Claims

1. A multi-cavity rapid switching automatic injection mold, comprising a lower mold positioning component (1), an upper mold positioning component (2), a mold positioning rod (3), a fixed mold core (4), a movable mold core (5), a limiting structure, a sliding mounting plate (6), an anti-blocking structure, and a sliding pressure plate (7); wherein the upper mold positioning component (2) is located above the lower mold positioning component (1); characterized in that: The mold positioning rods (3) are provided in eight parts, and the eight mold positioning rods (3) are respectively slidably connected to the left and right sides of the upper mold positioning component (2) or the left and right sides of the lower mold positioning component (1); the fixed mold core (4) is fixedly connected to the upper part of the lower mold positioning component (1); the movable mold core (5) is fixedly connected to the lower part of the upper mold positioning component (2); multiple atomizing nozzles are evenly distributed in the middle of the movable mold core (5) and the fixed mold core (4); the limiting structure is provided on the lower mold positioning component (2). The outer side of the component (1); multiple sliding mounting plates (6) are provided, and multiple sliding mounting plates (6) are evenly distributed and slidably connected to the upper part of the fixed mold core (4) or the lower part of the moving mold core (5); the anti-blocking structure is provided on the upper part of the fixed mold core (4); multiple sliding pressure plates (7) are provided, and multiple sliding pressure plates (7) are evenly distributed and slidably connected to the upper part of the fixed mold core (4) or the lower part of the moving mold core (5), and the upper and lower sides of the multiple sliding pressure plates (7) are provided with inclined surfaces.

2. The multi-cavity rapid switching automatic injection mold as described in claim 1, characterized in that: The limiting structure includes a reversing transmission gear (101) and a limiting transmission rack (301); four reversing transmission gears (101) are provided, and the four reversing transmission gears (101) are respectively rotatably connected to the left and right sides of the upper mold positioning member (2) or the left and right sides of the lower mold positioning member (1); eight limiting transmission racks (301) are provided, and the eight limiting transmission racks (301) are respectively fixedly connected to the inner side of the eight mold positioning rods (3), and the eight limiting transmission racks (301) respectively mesh with the four reversing transmission gears (101).

3. The multi-cavity rapid switching automatic injection mold as described in claim 2, characterized in that: The limiting structure also includes a first reset elastic element (302) and a limiting boss (401); eight first reset elastic elements (302) are provided, and the eight mold positioning rods (3) are elastically connected to the upper mold positioning element (2) or the lower mold positioning element (1) through the eight first reset elastic elements (302); four limiting bosses (401) are provided, and the four limiting bosses (401) are evenly distributed and fixedly connected to the upper part of the fixed mold core (4), and a groove is opened in the middle of the four limiting bosses (401).

4. The multi-cavity rapid switching automatic injection mold as described in claim 3, characterized in that: The limiting structure also includes limiting slots (402) and limiting rods (501); four limiting slots (402) are provided, and the four limiting slots (402) are respectively opened in the middle of the four limiting bosses (401); four limiting rods (501) are provided, and the four limiting rods (501) are evenly distributed and fixedly connected to the lower end face of the movable mold core (5), and the lower part of the four limiting rods (501) is provided with a groove.

5. The multi-cavity rapid switching automatic injection mold as described in claim 1, characterized in that: The anti-blocking structure includes a second reset elastic element (601) and a limiting protrusion (602); multiple second reset elastic elements (601) are provided, and multiple sliding mounting plates (6) are elastically connected to the fixed mold core (4) or the movable mold core (5) through multiple second reset elastic elements (601). The outer side of each of the multiple sliding mounting plates (6) is provided with a start button for the atomizing nozzle, and the start button is a push-button switch; multiple limiting protrusions (602) are provided, and multiple limiting protrusions (602) are slidably connected to the inner side of the multiple sliding mounting plates (6) respectively.

6. The multi-cavity rapid switching automatic injection mold as described in claim 5, characterized in that: The anti-blocking structure further includes a third reset elastic element (603) and a pressure-bearing inclined block (604); multiple third reset elastic elements (603) are provided, and multiple limiting protrusions (602) are elastically connected to multiple sliding mounting plates (6) through multiple third reset elastic elements (603); multiple pressure-bearing inclined blocks (604) are provided, and multiple pressure-bearing inclined blocks (604) are respectively fixedly connected to the middle of multiple limiting protrusions (602).

7. The multi-cavity rapid switching automatic injection mold as described in claim 6, characterized in that: The anti-blocking structure further includes a squeezing inclined block (701) and a fourth reset elastic element (702); multiple squeezing inclined blocks (701) are provided, and multiple squeezing inclined blocks (701) are respectively fixedly connected to the outside of multiple sliding pressure plates (7); multiple fourth reset elastic elements (702) are provided, and multiple sliding pressure plates (7) are elastically connected to the fixed mold core (4) or the movable mold core (5) through multiple fourth reset elastic elements (702).

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