A separating device for cosmetic container injection molding sprue

Abstract

This invention discloses a device for separating injection nozzles of cosmetic containers, comprising: a first cylinder with a connecting frame at its telescopic end; a second cylinder mounted on the connecting frame with a linkage at its telescopic end; the linkage is hinged to a linkage block, and a positioning plate is provided at the bottom of the linkage block. The positioning plate is rotatably connected to a working plate via a rotating shaft. The second cylinder drives the linkage to rotate the working plate between a vertical and a horizontal state around the rotating shaft. Multiple sets of first clamping assemblies for holding injection molded parts and second clamping assemblies for holding injection molded frames are mounted on the working plate. Compared to existing technologies, this invention solves the problem of using the second cylinder to drive the linkage to rotate the working plate between a vertical and a horizontal state, allowing for convenient loading and clamping of injection molded parts in the vertical state and precise alignment with the injection nozzle separation device in the horizontal state, eliminating the need for manual rotation and significantly improving automation and operational efficiency.

Description

Technical Field

[0001] This invention relates to the field of post-processing technology for injection molded products, and more particularly to a separation device for injection nozzles of cosmetic containers. Background Technology

[0002] Cosmetic containers are mostly manufactured using injection molding. After molding, the product is integrated with the gating system sprue (commonly known as the sprue) and runner frame, requiring the sprue to be separated from the container. Currently, the industry commonly uses manual shearing with scissors or pneumatic shears, which is not only labor-intensive and inefficient, but also prone to burrs and scratches at the shearing point, affecting the high appearance requirements of cosmetic containers. Some automated equipment attempts to remove the sprue using punching, but the impact of punching can easily cause stress whitening or even cracking on the product surface, and it is difficult to adapt to the flexible positioning of containers with different shapes, making equipment adjustment inconvenient.

[0003] Furthermore, the orientation changes of injection molded parts during transfer and separation still mainly rely on manual flipping, making it difficult to achieve continuous automated operation. Summary of the Invention

[0004] The purpose of this invention is to provide a separation device for injection gates of cosmetic containers, so as to solve the problems of low efficiency, easy damage to products, and insufficient automation of existing injection gate separation methods.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a separation device for injection nozzles of cosmetic containers, comprising: a first cylinder, the telescopic end of which is provided with a connecting frame;

[0006] The second cylinder is mounted on the connecting frame, and its telescopic end is equipped with a linkage component;

[0007] The linkage component is hinged to the linkage block. A positioning plate is provided at the bottom of the linkage block. The positioning plate is rotatably connected to the working plate through a rotating shaft. The second cylinder drives the linkage component to cause the working plate to flip around the rotating shaft between the vertical and horizontal states.

[0008] The work plate is equipped with multiple sets of first clamping components for clamping the injection molded parts and second clamping components for clamping the injection molded frame;

[0009] On both sides of the corresponding work plate, there are long strips. Two or more rotating jaws are arranged vertically along the upper edge of the long strips. The rotating jaws include an openable clamping part and a rotating drive part that drives the clamping part to rotate.

[0010] As a further description of the above technical solution:

[0011] The first clamping assembly includes a clamping jaw mounted on a work plate and a protective pad fitted onto the clamping jaw.

[0012] As a further description of the above technical solution:

[0013] The second clamping assembly includes a second clamping jaw mounted on the work plate and a second protective pad fitted onto the second clamping jaw.

[0014] As a further description of the above technical solution:

[0015] The grippers located on both sides of the top of the work plate are installed on the top edge of the work plate.

[0016] As a further description of the above technical solution:

[0017] The first gripper, located on both sides of the bottom of the work plate, is closer to the second gripper than the first gripper, located on both sides of the top.

[0018] As a further description of the above technical solution:

[0019] The linkage block is set in the U-shaped groove of the linkage component and is hinged to the linkage component.

[0020] As a further description of the above technical solution:

[0021] The rotating grippers are spaced apart along the length of the long strip.

[0022] As a further description of the above technical solution:

[0023] The first cylinder drives the work plate to move up and down, so that the first clamping component and the second clamping component on the work plate correspond to the position of the rotating jaw.

[0024] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0025] 1. In this invention, the second cylinder drives the linkage component to rotate the working plate around the rotation axis between the vertical and horizontal states, so that the injection molded part can be easily loaded and clamped in the vertical state, and accurately aligned with the sprue separation device in the horizontal state. No manual rotation is required, which greatly improves the degree of automation and work efficiency.

[0026] 2. In this invention, the first clamping component is used to fix the injection molding component and the second clamping component is used to fix the injection molding frame, so as to achieve reliable clamping of the product and the frame in sections. Then, the sprue is clamped by the rotating jaws on both sides and twisted off by rotation. The separation process is smooth and without impact, effectively avoiding product scratches and stress whitening, and ensuring the appearance quality of the cosmetic container.

[0027] 3. In this invention, the first and second grippers are respectively provided with protective pads, which provide flexible protection for the injection molded part and the injection molded frame during clamping, further reducing the risk of pinching injury; the up and down movement of the working plate is driven by the first cylinder, which allows the clamping components to flexibly correspond to the rotating grippers at different height positions, adapting to the synchronous separation of multiple sprue points. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of a device for separating the injection nozzle of a cosmetic container.

[0030] Figure 2 This is a front view of the structure of a linkage component in a separation device for the injection nozzle of a cosmetic container.

[0031] Figure 3 This is a schematic diagram of the working plate of a separation device for the injection nozzle of a cosmetic container.

[0032] Figure 4 This is a structural cross-sectional view of the rotating shaft of a separation device for the injection nozzle of a cosmetic container.

[0033] Figure 5 This is a schematic diagram of the first clamping component of a device for separating the injection nozzle of a cosmetic container.

[0034] Figure 6 This is a schematic diagram of the rotating gripper structure of a device for separating the injection nozzle of a cosmetic container.

[0035] Legend:

[0036] 1. First cylinder; 2. Connecting frame; 3. Second cylinder; 4. Linkage component; 5. Linkage block; 6. Positioning plate; 7. Rotating shaft; 8. Working plate; 9. First clamping assembly; 901. Gripper one; 902. Protective pad one; 10. Second clamping assembly; 1001. Gripper two; 1002. Protective pad two; 11. Air hole; 12. Long strip plate; 13. Rotating gripper. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Example 1

[0039] Please see Figures 1-6 The present invention provides a technical solution: a separation device for injection nozzles of cosmetic containers, comprising: a first cylinder 1, wherein a connecting frame 2 is provided at its telescopic end;

[0040] The second cylinder 3 is mounted on the connecting frame 2, and its telescopic end is provided with a linkage 4; the linkage 4 is hinged to the linkage block 5, and the bottom of the linkage block 5 is provided with a positioning plate 6. The positioning plate 6 is rotatably connected to the working plate 8 through the rotating shaft 7. The second cylinder 3 drives the linkage 4 to drive the working plate 8 to flip around the rotating shaft 7 between the vertical and horizontal states.

[0041] The work plate 8 is equipped with multiple sets of first clamping components 9 for clamping injection molded parts and second clamping components 10 for clamping injection molded frames; at the corresponding two sides of the work plate 8, there are long strips 12 respectively, and two or more rotating jaws 13 are arranged vertically on the long strips 12. The rotating jaws 13 include an openable clamping part and a rotating drive part for driving the clamping part to rotate.

[0042] The first clamping assembly 9 includes a first clamp 901 mounted on the work plate 8 and a first protective pad 902 sleeved on the first clamp 901. The first protective pad 902 can prevent damage to the surface of the injection molded part. The second clamping assembly 10 includes a second clamp 1001 mounted on the work plate 8 and a second protective pad 1002 sleeved on the second clamp 1001. The first clamp 901 located on both sides of the top of the work plate 8 is mounted on the top edge of the work plate 8 for easy positioning from the end; the first clamp 901 located on both sides of the bottom of the work plate 8 is closer to the second clamp 1001 than the first clamp 901 located on both sides of the top, in order to adapt to the common top-large-bottom-small shape of cosmetic containers and ensure stable clamping.

[0043] Linkage block 5 is disposed in the U-shaped groove of linkage member 4 and hinged to linkage member 4 to form a reliable rotating pair. Rotary grippers 13 are spaced apart along the length of long strip plate 12, and the gripping part of each rotary gripper 13 can be opened and closed independently. The rotation drive unit is preferably a pneumatic or electric rotary unit. First cylinder 1 drives working plate 8 to move up and down so that the first gripping assembly 9 and the second gripping assembly 10 on working plate 8 correspond to the position of rotary grippers 13, thereby accurately aligning the water inlet connection.

[0044] Working principle: Initially, the work plate 8 is in a vertical position. The injection molded part with the injection frame is placed in the corresponding position on the work plate 8 by manual operation or a robotic arm. The first clamping component 9's jaw 901 clamps the injection molded part, and the second clamping component 10's jaw 1001 clamps the injection frame. Then, the piston rod of the second cylinder 3 extends, pushing the linkage 4. Through the linkage block 5 and the positioning plate 6, the work plate 8 is flipped around the rotation axis 7 to a horizontal position. At this time, the injection molded part and the sprue are in a horizontal direction.

[0045] Next, the first cylinder 1 drives the connecting frame 2, the second cylinder 3, and the working plate 8 to move downwards as a whole, reaching a preset height, so that the sprue between the injection molded part and the injection frame enters the clamping range of the rotating jaws 13 on both sides. The clamping part of the rotating jaws 13 closes and clamps the sprue, and the rotating drive unit starts, driving the clamping part to rotate, twisting and separating the sprue from the injection molded part.

[0046] After separation, the first cylinder 1 resets, the second cylinder 3 retracts, causing the working plate 8 to flip back to the vertical position, and all clamping components are released, allowing the separated injection molded part and injection molded frame to be removed.

[0047] Example 2

[0048] Please see Figure 5 Based on the above embodiments, this embodiment further improves upon the following technical solution: Several air holes 11 are provided on the working plate 8. These air holes 11 are compressed air pipeline interfaces, connected to an external air source via pipelines, and provide compressed air to the pneumatic actuators of the first clamping component 9's gripper 901, the second clamping component 10's gripper 1001, and the rotating grippers 13 on both sides. This arrangement ensures that all pneumatic clamping and rotating elements are supplied with a unified air source, resulting in a compact pipeline layout. It eliminates the need for separate air pipes for each element, improving the overall neatness and ease of maintenance of the equipment. It is particularly suitable for clamping and separating injection-molded cosmetic containers with smooth surfaces that require a dust-free and scratch-free environment.

[0049] Example 3

[0050] Please see Figure 6This embodiment further improves upon the above embodiments by adopting the following technical solutions: The rotating gripper 13 uses an existing pneumatic rotating gripper module, and the opening, closing, and rotation of its gripping part are all driven by compressed air. The rotating drive part is specifically a pneumatic rotating cylinder. A precision pressure regulating valve and a throttle valve are installed on the pneumatic pipeline. The rotational torque is controlled by adjusting the air supply pressure, and the rotational speed is controlled by adjusting the opening of the throttle valve, thereby achieving parameterized adjustment of the breaking force and speed of the sprue for different materials. At the same time, an elastic pad can be attached to the inner side of the gripping part of the rotating gripper 13 to further buffer the impact when breaking the sprue, avoiding damage or residue at the root of the injection molded part. This utilizes existing mature pneumatic components and achieves stable and controllable sprue separation, meeting the high appearance requirements of cosmetic containers.

[0051] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A separation device for injection nozzles of cosmetic containers, characterized in that, include: The first cylinder (1) has a connecting frame (2) at its telescopic end; The second cylinder (3) is installed on the connecting frame (2), and its telescopic end is provided with a linkage (4). The linkage component (4) is hinged to the linkage block (5). The bottom of the linkage block (5) is provided with a positioning plate (6). The positioning plate (6) is rotatably connected to the working plate (8) through a rotating shaft (7). The second cylinder (3) drives the linkage component (4) to drive the working plate (8) to flip around the rotating shaft (7) between the vertical and horizontal states. The work plate (8) is equipped with multiple sets of first clamping components (9) for clamping the injection molded parts and second clamping components (10) for clamping the injection molded frame. On the positions corresponding to both sides of the working plate (8), there are long strips (12), and two or more rotating jaws (13) are arranged vertically on the long strips (12). The rotating jaws (13) include an openable clamping part and a rotating drive part that drives the clamping part to rotate.

2. The separation device for injection nozzles of cosmetic containers according to claim 1, characterized in that, The first clamping assembly (9) includes a first clamping jaw (901) mounted on the work plate (8) and a first protective pad (902) sleeved on the first clamping jaw (901).

3. The separation device for injection nozzles of cosmetic containers according to claim 1, characterized in that, The second clamping assembly (10) includes a second clamping jaw (1001) mounted on the work plate (8) and a second protective pad (1002) sleeved on the second clamping jaw (1001).

4. The separation device for injection nozzles of cosmetic containers according to claim 2, characterized in that, The grippers (901) located on both sides of the top of the work plate (8) are installed on the top edge of the work plate (8).

5. The separation device for injection nozzles of cosmetic containers according to claim 2, characterized in that, The first gripper (901) located on both sides of the bottom of the work plate (8) is closer to the second gripper (1001) than the first gripper (901) located on both sides of the top.

6. The separation device for injection nozzles of cosmetic containers according to claim 1, characterized in that, The linkage block (5) is set in the U-shaped groove of the linkage member (4) and is hinged to the linkage member (4).

7. The separation device for injection nozzles of cosmetic containers according to claim 1, characterized in that, The rotating grippers (13) are spaced apart along the length of the long strip (12).

8. The separation device for injection nozzles of cosmetic containers according to claim 1, characterized in that, The first cylinder (1) drives the work plate (8) to move up and down so that the first clamping assembly (9) and the second clamping assembly (10) on the work plate (8) correspond to the position of the rotating jaw (13).

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