A plastic box forming device

CN224702404UActive Publication Date: 2026-09-01SICHUAN HUICEN IND CO LTD
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Patent Information

Application Number
CN202521406324.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-07
Publication Date
2026-09-01
Estimated Expiration
2035-07-07

AI Technical Summary

Technical Problem

[0004]在塑料盒注塑成型后,通常工作人员使手部短暂伸入到上下模具之间,对成型的塑料盒进行拿取,但若需要对上下模具进行维护时,通常需要工作人员的手部长时间处于上下模具之间,而仅靠驱动件对上模具的牵制力,对上模具进行防合模保护,而这种方式会存在驱动件突然故障或旁边误按开关等操作,导致对工作人员的手部造成压伤风险,因此,塑料盒注塑成型装置在对上下模具进行维护时,对上模具进行防下落辅助保护是有必要的

Benefits of technology

[0032]本实用新型通过利用承托板、辅助板、承载板、固定杆、固定环、定位板、弹簧和悬挂件的相互配合,承托板跟随上模具进行移动,悬挂件解除辅助板位置限定后,弹簧推动辅助板至承托板的下方,以进行保护,进而有利于在对上模具和下模具进行维护时,对上模具进行防下落辅助保护,以降低工作人员手部长时间处于上下模具之间的风险。

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Abstract

This utility model discloses a plastic box forming device, including a base plate, a drive plate, and an auxiliary mechanism. A lower mold is mounted on the top of the base plate, and an upper mold is mounted on the top of the lower mold. The drive plate is fixedly connected to the top of the upper mold. The auxiliary mechanism is located on the side of the lower mold and is used to provide anti-fall protection for the upper mold. It also includes a top plate and a hydraulic cylinder. The top plate is located on top of the drive plate, and the hydraulic cylinder is mounted on top of the top plate. The output end of the hydraulic cylinder is connected to the drive plate for transmission. This utility model utilizes the cooperation of a support plate, an auxiliary plate, a bearing plate, and a suspension component. The support plate moves with the upper mold. After the suspension component releases the position restriction of the auxiliary plate, a spring pushes the auxiliary plate below the support plate for protection. This is beneficial for providing anti-fall protection for the upper mold during maintenance of the upper and lower molds, reducing the risk of workers' hands being between the upper and lower molds for extended periods.
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Description

Technical Field

[0001] This utility model relates to the field of plastic box molding, and in particular to a plastic box molding apparatus. Background Technology

[0002] Plastic boxes are a common type of container. They are usually made of plastic materials and can be used to store, transport, and protect various items. They are lightweight, durable, and low-cost. During the production of plastic boxes, injection molding is usually required, which involves the use of injection molding equipment.

[0003] Existing plastic box injection molding equipment typically includes an upper mold, a lower mold, a drive component, and a drive plate. The drive plate is connected to the upper mold, the lower mold is installed below the upper mold, and the drive component is located above the drive plate. The drive component causes the drive plate to move the upper mold up and down to perform mold opening or closing operations, thereby performing injection molding on the plastic box.

[0004] After the plastic box is injection molded, the operator usually briefly puts their hand between the upper and lower molds to pick up the molded plastic box. However, when maintenance of the upper and lower molds is required, the operator's hand usually needs to be between the upper and lower molds for a long time. The upper mold is protected from mold closing by the restraining force of the drive component alone. This method is prone to sudden failure of the drive component or accidental operation such as pressing a switch nearby, which may cause crush injury to the operator's hand. Therefore, it is necessary for the plastic box injection molding machine to provide anti-fall auxiliary protection for the upper mold when maintaining the upper and lower molds. Utility Model Content

[0005] The purpose of this invention is to provide a plastic box forming device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a plastic box forming device, comprising:

[0007] A base plate, on the top of which a lower mold is mounted, and on the top of which an upper mold is mounted;

[0008] A drive plate, which is fixedly connected to the top of the upper mold;

[0009] An auxiliary mechanism is located on the side of the lower mold and is used to provide auxiliary protection against the upper mold from falling.

[0010] Preferred options also include:

[0011] Top plate, which is located on top of the drive plate;

[0012] A hydraulic cylinder is mounted on the top of the top plate, and the output end of the hydraulic cylinder is connected to the drive plate for transmission.

[0013] An assembly frame is fixedly connected to the bottom of the base plate.

[0014] Preferably, the auxiliary mechanism includes:

[0015] A support plate, the support plate being located on the side of the upper mold;

[0016] An auxiliary plate, which is slidably disposed below the support plate;

[0017] A support plate, which is mounted on top of the base plate;

[0018] A connector located on an auxiliary plate, the connector being used to connect a support plate to an auxiliary plate.

[0019] Preferably, the auxiliary mechanism further includes:

[0020] A positioning plate, which is fixedly connected to the top of the support plate and installed on the side of the upper mold;

[0021] A suspension component located on a support plate, the suspension component being used to traction and fix the auxiliary plate.

[0022] Preferably, the connector includes:

[0023] A fixed rod, the end of which is fixedly connected to a bearing plate, and the outer wall of which is slidably inserted into an auxiliary plate;

[0024] A retaining ring, which is fixedly sleeved on the outside of the retaining rod;

[0025] A spring is sleeved on the outside of a fixed rod, one end of which is fixedly connected to an auxiliary plate, and the other end of which is fixedly connected to a bearing plate.

[0026] Preferably, the suspension member includes:

[0027] The traction rope has its end fixedly connected to the auxiliary plate, and its outer wall slidably interlocks with the bearing plate.

[0028] A fixing frame is fixedly connected to the side of the support plate;

[0029] A connecting ring, which is fixedly connected to the other end of the traction rope;

[0030] A connecting frame is fixedly connected to the inner wall of a fixed frame, and the connecting frame mates with the inner cavity of a connecting ring.

[0031] The technical effects and advantages of this utility model are as follows:

[0032] This invention utilizes the cooperation of a support plate, an auxiliary plate, a bearing plate, a fixing rod, a fixing ring, a positioning plate, a spring, and a suspension component. The support plate moves with the upper mold, and after the suspension component releases the position limitation of the auxiliary plate, the spring pushes the auxiliary plate below the support plate for protection. This facilitates the protection against falling of the upper mold during maintenance of the upper and lower molds, reducing the risk of workers' hands being between the upper and lower molds for extended periods. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0034] Figure 2 This is a schematic diagram of the front structure of the support plate of this utility model.

[0035] Figure 3 This is a schematic diagram showing the cooperation between the support plate and the auxiliary plate of this utility model.

[0036] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0037] In the diagram: 1. Base plate; 2. Lower mold; 3. Upper mold; 4. Drive plate; 5. Top plate; 6. Hydraulic cylinder; 7. Auxiliary mechanism; 71. Support plate; 72. Auxiliary plate; 73. Bearing plate; 74. Fixing rod; 75. Fixing ring; 76. Positioning plate; 77. Spring; 78. Traction rope; 79. Fixing frame; 710. Connecting ring; 711. Connecting frame; 8. Assembly frame. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] This utility model provides, for example Figure 1-4 The image shows a plastic box forming apparatus.

[0040] Example 1: Includes a base plate 1, a drive plate 4, and an auxiliary mechanism 7. The base plate 1 is used to support the lower mold 2, and the lower mold 2 is installed on the top of the base plate 1. The drive plate 4 is used to drive the upper mold 3 to move. The upper mold 3 is set on the top of the lower mold 2. The drive plate 4 is fixedly connected to the top of the upper mold 3. The auxiliary mechanism 7 is located on the side of the lower mold 2 and is used to provide anti-fall protection for the upper mold 3.

[0041] Furthermore, it also includes a top plate 5, a hydraulic cylinder 6, and an assembly frame 8. The top plate 5 is conducive to supporting the hydraulic cylinder 6, and the hydraulic cylinder 6 is conducive to pushing the drive plate 4 to move up and down. The assembly frame 8 is conducive to supporting the bottom plate 1. The top plate 5 is located on top of the drive plate 4, the hydraulic cylinder 6 is installed on top of the top plate 5, the output end of the hydraulic cylinder 6 is connected to the drive plate 4 for transmission, and the assembly frame 8 is fixedly connected to the bottom of the bottom plate 1.

[0042] Furthermore, the auxiliary mechanism 7 includes a support plate 71, an auxiliary plate 72, a bearing plate 73, and a connector. The support plate 71 provides support for the upper mold 3, and the support plate 71 and the auxiliary plate 72 provide anti-fall protection for the upper mold 3 to prevent workers' hands from being exposed between the upper mold 3 and the lower mold 2 for extended periods, thereby increasing mechanical protection and improving safety. The bearing plate 73 allows the fixing rod 74 to slide on it, facilitating the guidance of the deformation of the spring 77. The support plate 71 is located on the side of the upper mold 3, the auxiliary plate 72 is slidably disposed below the support plate 71, the bearing plate 73 is installed on the top of the base plate 1, and the connector is located on the auxiliary plate 72, which is used to connect the bearing plate 73 and the auxiliary plate 72.

[0043] Furthermore, the auxiliary mechanism 7 also includes a positioning plate 76 and a suspension component. The positioning plate 76 facilitates the support plate 71 and makes it easier to install the support plate 71. The positioning plate 76 is fixedly connected to the top of the support plate 71 and is installed on the side of the upper mold 3. The suspension component is located on the bearing plate 73 and is used to pull and fix the auxiliary plate 72.

[0044] Specifically, the connecting components include a fixed rod 74, a fixed ring 75, and a spring 77. The fixed ring 75 helps to limit the movement position of the auxiliary plate 72, and the elastic force of the spring 77 helps to push the auxiliary plate 72 to move, making it easy for the auxiliary plate 72 to return to its original position after movement, and facilitating repeated operation of the auxiliary plate 72. The end of the fixed rod 74 is fixedly connected to the bearing plate 73, and the outer wall of the fixed rod 74 is slidably inserted into the auxiliary plate 72. The fixed ring 75 is fixedly sleeved on the outside of the fixed rod 74, and the spring 77 is sleeved on the outside of the fixed rod 74. One end of the spring 77 is fixedly connected to the auxiliary plate 72, and the other end of the spring 77 is fixedly connected to the bearing plate 73.

[0045] Example 2: Based on Example 1, the suspension component includes a traction rope 78, a fixing frame 79, a connecting ring 710, and a connecting frame 711. The traction rope 78 facilitates the movement of the auxiliary plate 72, moving the auxiliary plate 72 away from the underside of the support plate 71, so that the upper mold 3 and the lower mold 2 can be used normally. The fixing frame 79 is L-shaped, which facilitates the support of the connecting frame 711. The connecting ring 710 and the connecting frame 711 facilitate the hanging and fixing of the auxiliary plate 72, so that the auxiliary plate 72 can be stored when not in use. The end of the traction rope 78 is fixedly connected to the auxiliary plate 72, and the outer wall of the traction rope 78 is slidably inserted into the support plate 73. The fixing frame 79 is fixedly connected to the side of the support plate 73, the connecting ring 710 is fixedly connected to the other end of the traction rope 78, and the connecting frame 711 is fixedly connected to the inner wall of the fixing frame 79. The connecting frame 711 cooperates with the inner cavity of the connecting ring 710.

[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A plastic box forming apparatus, characterized in that, include: A base plate (1) is provided with a lower mold (2) on its top and an upper mold (3) on its top. Drive plate (4), which is fixedly connected to the top of the upper mold (3); An auxiliary mechanism (7) is located on the side of the lower mold (2). The auxiliary mechanism (7) is used to provide anti-fall protection for the upper mold (3). The auxiliary mechanism (7) includes: Support plate (71), said support plate (71) is located on the side of the upper mold (3); An auxiliary plate (72) is slidably disposed below a support plate (71); A support plate (73) is mounted on top of the base plate (1); A connector, located on the auxiliary plate (72), for connecting the support plate (73) to the auxiliary plate (72), the connector comprising: A fixing rod (74) is fixedly connected to a bearing plate (73) at its end, and the outer wall of the fixing rod (74) is slidably inserted into an auxiliary plate (72). A fixing ring (75) is fixedly sleeved on the outside of a fixing rod (74); Spring (77), the spring (77) is sleeved on the outside of the fixed rod (74), one end of the spring (77) is fixedly connected to the auxiliary plate (72), and the other end of the spring (77) is fixedly connected to the bearing plate (73); Positioning plate (76), the positioning plate (76) is fixedly connected to the top of the support plate (71), and the positioning plate (76) is installed on the side of the upper mold (3); A suspension member, located on a support plate (73), is used to traction and fix an auxiliary plate (72), the suspension member comprising: The traction rope (78) is fixedly connected to the auxiliary plate (72) at its end, and the outer wall of the traction rope (78) is slidably inserted into the bearing plate (73). A fixing frame (79) is fixedly connected to the side of the bearing plate (73); A connecting ring (710) is fixedly connected to the other end of the traction rope (78); A connecting frame (711) is fixedly connected to the inner wall of the fixed frame (79), and the connecting frame (711) cooperates with the inner cavity of the connecting ring (710).

2. The plastic box forming apparatus according to claim 1, characterized in that, Also includes: Top plate (5), which is located on top of drive plate (4); Hydraulic cylinder (6), the hydraulic cylinder (6) is installed on the top of the top plate (5), and the output end of the hydraulic cylinder (6) is connected to the drive plate (4) for transmission. Assembly frame (8) is fixedly connected to the bottom of base plate (1).