A hot forming press mechanism for a plastic article box

Abstract

A kind of plastic product box hot forming die mechanism, including the shell for being arranged on hot press forming machine, the shell is equipped with die driving part, the die driving part is linked with die shaft, the die shaft is equipped with positioning plate, the positioning plate is horizontally arranged and rear side is slidably connected with shell for preventing die shaft from shaking.By the technical scheme, the sliding connection structure between positioning plate and shell can provide stable guiding support during the up and down movement of die shaft, avoid shaft body deviation or swing.Die shaft movement is more stable, ensure the position of upper and lower moulds accurately align during mould closing process, thereby improve the forming quality and dimensional consistency of plastic product box.By reducing the mechanical wear caused by die shaft shaking, prolong the service life of die assembly and guiding structure.Die action is more stable and reliable, reduce the rate of defective products, improve overall production stability and efficiency.

Description

Technical Field

[0001] This utility model relates to a thermoforming molding mechanism for plastic boxes, belonging to the field of plastic product processing equipment. Background Technology

[0002] A hot press molding machine (also known as a flat vulcanizing machine, rubber vulcanizing machine, or foam board vulcanizing machine) is an industrial device that uses an intelligent constant temperature system with electric heating plates to apply pressure and mold raw materials. Its core structure consists of a frame, heating device, and pressure actuator. This equipment is suitable for the mixing and batching testing of polymers in the rubber and plastics industries to detect color and quality, serving as a basis for mass production. The equipment adopts a four-column guide balance structure to ensure pressure uniformity and is equipped with a hydraulic drive system and segmented temperature control device for precise control of pressure parameters.

[0003] The existing hot press molding machine's molding mechanism generally uses a motor to drive the molding shaft to move up and down. However, this method of movement can cause the molding shaft to wobble after long-term use, resulting in unstable quality of the molded plastic products and affecting production quality and efficiency. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings and deficiencies of the existing technology and to provide a thermoforming molding mechanism for plastic boxes.

[0005] A thermoforming molding mechanism for plastic boxes includes a housing for mounting on a thermoforming machine. The housing is provided with a molding drive component, which is linked to a molding shaft. A positioning plate is sleeved on the molding shaft. The positioning plate is horizontally positioned and its rear side is slidably connected to the housing to prevent the molding shaft from shaking.

[0006] This technical solution provides stable guidance and support for the sliding connection structure between the positioning plate and the outer shell during the up-and-down movement of the molding shaft, preventing shaft misalignment or swaying. The smoother movement of the molding shaft ensures precise alignment of the upper and lower molds during mold closing, thereby improving the molding quality and dimensional consistency of the plastic box. By reducing mechanical wear caused by molding shaft wobbling, the service life of the molding assembly and guide structure is extended. The more stable and reliable molding action reduces the defect rate and improves overall production stability and efficiency.

[0007] Preferably, the positioning plate includes a sleeve sleeved around the mold shaft and slidably connected thereto. The sleeve has positioning parts on both sides and a sliding part on the rear side of the positioning parts. The inner wall of the outer shell has a slide rail slidably connected to the sliding part.

[0008] This technical solution provides coaxial guiding support during the up-and-down movement of the molding shaft. The positioning parts on both sides of the sleeve further enhance the lateral stability of the molding shaft, preventing it from swaying under stress. Simultaneously, the sliding part behind the positioning part slides against the slide rail on the inner wall of the outer shell, limiting the direction of movement of the molding shaft and ensuring smooth linear motion of the molding mechanism during operation. This effectively prevents molding shaft wobbling, ensures molding accuracy, improves the molding quality and consistency of plastic boxes, extends equipment lifespan, and enhances overall production stability.

[0009] Preferably, the outer casing is provided with a positioning drive component, the positioning drive component is linked with a drive shaft, and the other end of the drive shaft is fixedly mounted on the positioning part for the positioning plate to move axially following the mold shaft.

[0010] This technical solution connects the driving component to the positioning part via a drive shaft, enabling the positioning plate to move axially synchronously with the molding shaft. This structure achieves coordinated movement between the positioning plate and the molding shaft, avoiding positioning lag or jamming caused by the molding shaft moving alone, thus further improving the stability and synchronization of the molding motion. This not only ensures smooth guidance of the molding die during its up and down strokes, preventing molding shaft wobbling, but also enhances the overall molding mechanism's accuracy and reliability, guaranteeing consistent and stable molding quality of the plastic boxes.

[0011] Preferably, the positioning part is L-shaped.

[0012] This technical solution uses an L-shaped positioning section, which structurally forms a bidirectional support surface for the positioning plate, resulting in better stability and guiding effect when it cooperates with the slide rail. This L-shaped structure also increases the contact area between the positioning section and the slide rail.

[0013] Furthermore, the positioning drive component is a drive cylinder, symmetrically arranged on both sides of the molding drive component.

[0014] This technical solution achieves bidirectional balanced drive for the positioning plate. The structure ensures balanced force during drive, preventing offset or tilting caused by unilateral force, thus guaranteeing the stability and synchronization of the positioning plate and the mold shaft during vertical movement. The drive cylinder has a fast response speed and high control precision, enabling precise linkage of the mold positioning action, further improving the operational reliability and forming accuracy of the mold mechanism, and enhancing the overall working stability of the equipment.

[0015] Preferably, the mold driving component is a drive motor.

[0016] This technical solution enables stable and controllable driving of the die shaft. The drive motor has a fast response speed and good speed regulation performance, and can precisely control the up-and-down movement speed and stroke position of the die shaft according to the molding process requirements, thereby improving the flexibility of the die action and the molding accuracy.

[0017] Preferably, the bottom of the housing is provided with a connection hole, and the end of the pressing mold shaft extends through the connection hole to the outside for installing different models of pressing modules.

[0018] This technical solution allows for quick replacement of the pressing module according to the specifications or shape of different plastic boxes, without the need to disassemble and adjust the entire machine structure, thus greatly improving the applicability and production flexibility of the equipment.

[0019] Furthermore, the outer casing is enclosed.

[0020] This technical solution features a closed housing, which effectively prevents dust, impurities, or foreign objects from entering the molding mechanism, avoiding contamination or wear on the molding shaft, positioning plate, and drive components, thereby improving the overall cleanliness and service life of the machine.

[0021] The beneficial effects of this utility model are as follows: The sliding connection structure between the positioning plate and the outer shell provides stable guiding support during the up-and-down movement of the molding shaft, preventing shaft offset or swaying. The molding shaft movement is smoother, ensuring precise alignment of the upper and lower molds during mold closing, thereby improving the molding quality and dimensional consistency of the plastic box. By reducing mechanical wear caused by molding shaft wobbling, the service life of the molding assembly and guiding structure is extended. The molding action is more stable and reliable, reducing the defect rate and improving overall production stability and efficiency. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, obtaining other drawings based on these drawings without creative effort still falls within the scope of this utility model.

[0023] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model with the driver box shell removed; Figure 3 This is a schematic diagram of the structure of this utility model with some parts removed; In the figure, 1 is the outer shell; 11 is the slide rail; 12 is the connecting hole; 2 is the mold driving component; 21 is the mold shaft; 3 is the positioning plate; 31 is the sleeve; 32 is the positioning part; 33 is the sliding part; 4 is the positioning driving component; and 41 is the drive shaft. Detailed Implementation

[0024] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0025] It should be noted that all uses of "first" and "second" in the embodiments of this utility model are for the purpose of distinguishing two entities or parameters with the same name but different names. It is clear that "first" and "second" are only for the convenience of expression and should not be construed as limiting the embodiments of this utility model. Subsequent embodiments will not explain this in detail.

[0026] The directional and positional terms used in this utility model, such as "up," "down," "front," "back," "left," "right," "inner," "outer," "top," "bottom," and "side," are merely for reference to the accompanying drawings. Therefore, the directional and positional terms used are for the purpose of explaining and understanding this utility model, and not for limiting the scope of protection of this utility model.

[0027] like Figure 1-3 As shown, this is an embodiment of a thermoforming molding mechanism for plastic boxes according to the present invention. It includes a housing 1 for mounting on a thermoforming machine. The housing 1 is provided with a molding drive component 2. The molding drive component 2 is linked to a molding shaft 21. A positioning plate 3 is sleeved on the molding shaft 21. The positioning plate 3 is horizontally positioned and its rear side is slidably connected to the housing 1 to prevent the molding shaft 21 from shaking.

[0028] This technical solution enables the sliding connection structure between the positioning plate 3 and the outer shell 1 to provide stable guiding support during the up-and-down movement of the molding shaft 21, preventing shaft offset or swaying. The smoother movement of the molding shaft 21 ensures precise alignment of the upper and lower molds during mold closing, thereby improving the molding quality and dimensional consistency of the plastic box. By reducing mechanical wear caused by the shaking of the molding shaft 21, the service life of the molding assembly and guiding structure is extended. The molding action is more stable and reliable, reducing the defect rate and improving overall production stability and efficiency.

[0029] The positioning plate 3 includes a sleeve 31 that is sleeved on the outside of the molding shaft 21 and slidably connected thereto. The sleeve 31 has positioning parts 32 on both sides and a sliding part 33 on the rear side of the positioning part 32. The inner wall of the outer shell 1 has a slide rail 11 that is slidably connected to the sliding part 33.

[0030] This technical solution provides coaxial guiding support during the up-and-down movement of the molding shaft 21. The positioning parts 32 on both sides of the sleeve 31 further enhance the lateral stability of the molding shaft 21, preventing it from swaying under stress. Simultaneously, the sliding part 33 on the rear side of the positioning part 32 slides against the slide rail 11 on the inner wall of the outer shell 1, limiting the direction of movement of the molding shaft 21 and ensuring smooth linear motion of the molding mechanism during operation. This effectively prevents the molding shaft 21 from shaking, ensures molding accuracy, improves the molding quality and consistency of plastic boxes, extends equipment lifespan, and enhances overall production stability.

[0031] The outer casing 1 is provided with a positioning drive component 4, which is linked to a drive shaft 41. The other end of the drive shaft 41 is fixed on the positioning part 32 for the positioning plate 3 to move axially following the mold shaft 21.

[0032] Through this technical solution, the driving component is connected to the positioning part 32 via the driving shaft 41, enabling the positioning plate 3 to move axially synchronously with the molding shaft 21. This structure achieves coordinated movement between the positioning plate 3 and the molding shaft 21, avoiding positioning lag or jamming caused by the molding shaft 21 moving alone, thereby further improving the stability and synchronization of the molding motion. This not only ensures smooth guidance of the molding die during its up and down strokes, preventing the molding shaft 21 from shaking, but also improves the overall molding mechanism's motion accuracy and reliability, guaranteeing consistent and stable molding quality of the plastic box.

[0033] The positioning part 32 is L-shaped.

[0034] With this technical solution, the positioning part 32 is L-shaped, which can form a two-way support surface for the positioning plate 3 in terms of structure, so that it has better stability and guiding effect when it cooperates with the slide rail 11. This L-shaped structure increases the contact area between the positioning part 32 and the slide rail 11.

[0035] The positioning drive component 4 is a drive cylinder, which is symmetrically arranged on both sides of the mold drive component 2.

[0036] This technical solution achieves bidirectional balanced driving of the positioning plate 3. The structure ensures balanced force during driving, avoiding offset or tilting caused by unilateral force, thus guaranteeing the stability and synchronization of the positioning plate 3 and the mold shaft 21 during vertical movement. The drive cylinder has a fast response speed and high control precision, enabling precise linkage of the mold positioning action, further improving the operational reliability and molding accuracy of the mold mechanism, and enhancing the overall working stability of the equipment.

[0037] The mold driving component 2 is a drive motor.

[0038] This technical solution enables stable and controllable driving of the die shaft 21. The drive motor has a fast response speed and good speed regulation performance, and can precisely control the up-and-down movement speed and stroke position of the die shaft 21 according to the molding process requirements, thereby improving the flexibility of the die action and the molding accuracy.

[0039] The bottom of the housing 1 is provided with a connection hole 12, and the end of the pressing shaft 21 extends through the connection hole 12 to the outside for installing different types of pressing modules.

[0040] This technical solution allows for quick replacement of the pressing module according to the specifications or shape of different plastic boxes, without the need to disassemble and adjust the entire machine structure, thus greatly improving the applicability and production flexibility of the equipment.

[0041] The outer casing 1 is enclosed.

[0042] With this technical solution, the outer casing 1 is enclosed, which can effectively prevent dust, impurities or foreign objects from entering the mold pressing mechanism, avoiding contamination or wear on the mold pressing shaft 21, positioning plate 3 and drive components, thereby improving the cleanliness and service life of the whole machine.

[0043] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

[0044] Although the present invention has been described with reference to several specific embodiments, it should be understood that the present invention is not limited to the specific embodiments disclosed. The present invention is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. A thermoforming molding mechanism for plastic product boxes, characterized in that: It includes a housing for mounting on a hot press forming machine, the housing having a mold driving component, the mold driving component being linked to a mold shaft, a positioning plate being fitted on the mold shaft, the positioning plate being horizontally positioned and slidably connected to the housing at its rear to prevent the mold shaft from shaking.

2. The thermoforming molding mechanism for plastic boxes as described in claim 1, characterized in that: The positioning plate includes a sleeve that is sleeved on the outside of the mold shaft and slidably connected thereto. Positioning parts are provided on both sides of the sleeve, and a sliding part is provided on the rear side of the positioning part. A slide rail is provided on the inner wall of the outer shell that is slidably connected to the sliding part.

3. The thermoforming molding mechanism for plastic boxes as described in claim 1, characterized in that: The outer casing is provided with a positioning drive component, which is linked to a drive shaft. The other end of the drive shaft is fixedly mounted on the positioning part, and is used for the positioning plate to move axially following the mold shaft.

4. The thermoforming molding mechanism for plastic boxes as described in claim 1 or 2, characterized in that: The positioning part is L-shaped.

5. The thermoforming molding mechanism for plastic boxes as described in claim 3, characterized in that: The positioning drive component is a drive cylinder, which is symmetrically arranged on both sides of the mold drive component.

6. The thermoforming molding mechanism for plastic boxes as described in claim 1, characterized in that: The mold driving component is a drive motor.

7. The thermoforming molding mechanism for plastic boxes as described in claim 1, characterized in that: The bottom of the housing is provided with a connection hole, and the end of the pressing mold shaft extends through the connection hole to the outside for installing different models of pressing modules.

8. The thermoforming molding mechanism for plastic boxes as described in claim 7, characterized in that: The outer casing is enclosed.

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