Plastic uptake forming mechanism for draw-bar box shell

By introducing a cooling system and safety door design into the vacuum forming machine, the problems of cooling the vacuum template and inconvenience in machine maintenance have been solved, achieving efficient cooling of the vacuum template and safe and reliable maintenance operations.

CN223777768UActive Publication Date: 2026-01-09ZHEJIANG HUAYANG CASES & BAGS LEATHER CO LTD
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Patent Information

Application Number
CN202520296022.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-24
Publication Date
2026-01-09
Estimated Expiration
2035-02-24

AI Technical Summary

Technical Problem

Existing vacuum forming machines used for producing suitcases are inconvenient for cooling the vacuum forming plate and for inspecting, maintaining and repairing the internal parts of the machine.

Method used

A cooling system was designed, comprising a water tank, a pull rod, a rubber stopper, a corrugated pipe, a cooling water tank, a water pump, and a circulating water pipe. By pulling the pull rod, the rubber stopper is disengaged from the corrugated pipe, and cooling water flows into the cooling water tank to cool the suction plate. At the same time, the design of the hinge and magnetic block facilitates the opening of the cabinet door for maintenance and prevents electric shock from the wires.

Benefits of technology

It achieves effective cooling of the suction template and convenient inspection and maintenance of the machine body, improving operational safety and production efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223777768U_ABST
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Abstract

The utility model discloses a plastic uptake forming mechanism for a draw-bar box shell, which comprises a top seat, a water tank is fixedly mounted at the upper end of the top seat, according to the plastic uptake forming mechanism for the draw-bar box shell, a pull rod is pulled upwards to drive a rubber plug to be separated from and tightly plug a corrugated pipe, and cooling water in the water tank flows into a cooling water tank; water flow in the cooling water tank can be pumped by starting a water pump and flows back into the water tank through a circulating water pipe, water resources are recycled, and cooling water can be controlled to flow into the cooling water tank through the design of a pull rod and a rubber plug so that the cooling water can be stored and used for production again. The handle is pulled to drive the box door to rotate and open with the hinge as the axis so that the interior of the control box can be checked, repaired and maintained, the main magnetic block and the auxiliary magnetic block can be mutually fastened and attracted to prevent the box door from automatically rotating and opening, the box door can prevent an operator from touching an electric wire in the control box to get an electric shock, and the operation safety is improved.
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Description

Technical Field

[0001] This utility model relates to the technical field of trolley case forming devices, specifically a vacuum forming mechanism for trolley case shells. Background Technology

[0002] As is well known, vacuum forming machines are also called thermoforming machines. The process of this forming equipment mainly uses the vacuum suction generated by a vacuum pump to vacuum form various shapes of thermoplastic plastic sheets such as PVC, PET, PETG, PTT, PP, PE, and PS after heating and softening through a mold, or to attach them to the surface of various shaped products.

[0003] Currently, existing vacuum forming machines for trolley case production require controlling an electric telescopic rod in the fastening mechanism to control the drive motor when processing another type of trolley case workpiece. The other side of the heating plate faces upwards, and the mold corresponding to the trolley case workpiece is installed on the other side of the heating plate. The mold is heated by the heating plate, and then the lifting vacuum forming mechanism is used for vacuum forming. This structure facilitates the installation of molds for two different trolley case workpieces, allowing for vacuum forming of two different trolley case workpieces. It reduces the need for personnel to frequently change two molds, making it convenient to use and improving work efficiency. The guiding mechanism enables the connecting plate to move stably in a straight line.

[0004] For example, the patent announcement CN220008784U discloses a vacuum forming machine for producing trolley cases, including a machine body with a lifting vacuum forming mechanism. An adjustment groove is provided at the top of the machine body, and a heating plate is provided on the adjustment groove. Molds are provided on both sides of the heating plate. A support frame is provided at one end of the machine body, and a drive motor is provided on the support frame. The output end of the drive motor is connected to one end of the heating plate. A connecting shaft is provided at the other end of the heating plate. A bearing seat is provided between the connecting shaft and the adjustment groove. A fastening mechanism is provided between the heating plate and the machine body. The fastening mechanism includes a fastening box and a docking groove. The fastening box is installed on one side of the heating plate and on the other side of the machine body. A through hole is provided between the inside of the fastening box and the adjusting groove. A fastening post is provided in the through hole. One end of the fastening box is equipped with an electric telescopic rod, the output end of which extends into the inside of the fastening box and has a ramp. One end of the fastening post abuts against the docking groove, and the other end of the fastening post is equipped with a fastening block. An inclined groove is provided on the fastening block, and a connecting plate is provided on one side of the fastening block. A spring and a guide mechanism are provided between the connecting plate and the inside of the fastening box. Two fastening mechanisms are provided and symmetrically arranged. However, this type of vacuum forming machine for producing trolley cases is inconvenient for cooling the vacuum forming plate and for inspecting, maintaining, and repairing the internal parts of the machine body.

[0005] As can be seen from the solutions disclosed in the existing patent documents, it is inconvenient to cool the suction template and to inspect, maintain and repair the internal parts of the machine. Therefore, it is necessary to improve the existing technology. Utility Model Content

[0006] The purpose of this utility model is to provide a vacuum forming mechanism for trolley case shells, so as to solve the problems of inconvenience in cooling the vacuum forming plate and inconvenience in inspecting, maintaining and repairing the inside of the machine.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a vacuum forming mechanism for a trolley case shell, comprising a top base, a water tank fixedly installed on the upper end of the top base, a pull rod sleeved inside the water tank, a rubber stopper fixedly connected to the lower end of the pull rod, a corrugated pipe fixedly connected to the lower end of the water tank, a suction template fixedly connected to the lower end of the corrugated pipe, a cooling water tank provided inside the suction template, a water pump connected to one side of the upper end of the suction template via the corrugated pipe, a circulating water pipe fixedly connected to the upper end of the water pump, a water inlet pipe fixedly welded to the upper end of the water tank, a drive motor fixedly installed on the upper end of the top base, a support column fixedly welded to the lower end of the top base, a control box fixedly connected to the lower end of the support column, a hinge installed on the side of the control box, a case door connected to the hinge, a handle fixedly welded to the outer side of the case door, and a main magnetic block fixedly connected to one side of the lower end of the case door.

[0008] Preferably, the top seat is internally fitted with a corrugated pipe, and the lower end of the rubber plug is tightly sealed to the corrugated pipe. By pulling the lever upward, the rubber plug is dislodged from the corrugated pipe, and the cooling water inside the water tank flows into the cooling water tank, which facilitates the cooling of the suction plate.

[0009] Preferably, the lower end of the corrugated pipe is connected to a cooling water tank, and a water pump is fixedly installed on the upper end face of the top seat. By starting the water pump, water can be drawn from inside the cooling water tank and flowed back into the water tank through the circulating water pipe, thus recycling water resources.

[0010] Preferably, the lower end of the water tank is sealed with a rubber stopper, and the inside of the water tank stores cooling water. The design of the pull rod and the rubber stopper can control the flow of cooling water into the cooling water tank so that the cooling water can be stored for reuse in production.

[0011] Preferably, a rubber anti-slip sleeve is fixedly fitted to the outer surface of the handle, and a secondary magnetic block is fixedly adhered inside the control box. By pulling the handle, the box door is rotated and opened around the hinge as the axis, so as to inspect, maintain and repair the inside of the control box.

[0012] Preferably, a secondary magnetic block is securely attached to the side of the main magnetic block, and a circulating water pipe is connected inside the water inlet pipe. The design of the main magnetic block and the secondary magnetic block allows them to be securely attached to each other, preventing the box door from automatically rotating and opening.

[0013] Preferably, the control box has an internal door, and the lower end of the telescopic rod of the drive motor is fixedly connected to a suction template. The door design can prevent the operator from touching the internal wires of the control box and getting an electric shock, thus improving operational safety.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model allows the rubber stopper to disengage from the corrugated pipe by pulling the lever upward, allowing the cooling water inside the water tank to flow into the cooling water tank, which facilitates the cooling of the suction plate. By starting the water pump, the water inside the cooling water tank can be drawn out and flowed back into the water tank through the circulating water pipe, thus recycling the water resources. The design of the lever and the rubber stopper can control the flow of cooling water into the cooling water tank, so that the cooling water can be stored for reuse in production.

[0016] 2. This utility model allows the control box door to be opened by pulling the handle, rotating around the hinge as the axis, so as to inspect, maintain and repair the inside of the control box. The design of the main magnetic block and the auxiliary magnetic block can be firmly attached to each other to prevent the door from opening automatically. The design of the door can also prevent the operator from touching the wires inside the control box and getting an electric shock, thus improving operational safety. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the suction template of this utility model;

[0019] Figure 3 This is an enlarged sectional view of the water tank of this utility model;

[0020] Figure 4 This is an enlarged perspective view of the main magnetic block of this utility model.

[0021] In the diagram: 1. Top seat, 11. Water tank, 12. Tie rod, 13. Rubber plug, 14. Corrugated pipe, 15. Suction template, 16. Cooling water tank, 17. Water pump, 18. Circulating water pipe, 19. Inlet pipe, 110. Drive motor, 2. Support column, 21. Control box, 22. Hinges, 23. Box door, 24. Handle, 25. Main magnetic block, 26. Secondary magnetic block. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-4 The diagram illustrates a vacuum forming mechanism for a suitcase shell, comprising a top base 1, a water tank 11 fixedly mounted on the upper end of the top base 1, a pull rod 12 sleeved inside the water tank 11, a rubber stopper 13 fixedly connected to the lower end of the pull rod 12, a corrugated pipe 14 fixedly connected to the lower end of the water tank 11, a vacuum forming plate 15 fixedly connected to the lower end of the corrugated pipe 14, a cooling water tank 16 disposed inside the vacuum forming plate 15, and a water pump 17, model QHX, connected to one side of the upper end of the vacuum forming plate 15 via the corrugated pipe 14. The water pump 17 is of the prior art. The upper end of the water pump 17 is fixedly connected to a circulating water pipe 18, the upper end of the water tank 11 is fixedly welded to an inlet pipe 19, the upper end of the top seat 1 is fixedly installed with a drive motor 110, which is existing technology, the lower end of the top seat 1 is fixedly welded to a support column 2, the lower end of the support column 2 is fixedly connected to a control box 21, the side of the control box 21 is installed with a hinge 22, the hinge 22 is connected to a door 23, the outer side of the door 23 is fixedly welded to a handle 24, and the lower end of one side of the door 23 is fixedly connected to a main magnetic block 25.

[0024] To facilitate cooling of the suction plate 15, a corrugated pipe 14 is fitted inside the top seat 1. The lower end of the rubber plug 13 is tightly sealed to the corrugated pipe 14. By pulling the lever 12 upward, the rubber plug 13 is disengaged from the corrugated pipe 14, and the cooling water inside the water tank 11 flows into the cooling water tank 16 to facilitate cooling of the suction plate 15. The lower end of the corrugated pipe 14 is connected to the cooling water tank 16. A water pump 17 is fixedly installed on the upper end face of the top seat 1. By starting the water pump 17, water can be drawn from the cooling water tank 16 and flowed back into the water tank 11 through the circulating water pipe 18, thus recycling the water resources. The lower end of the water tank 11 is tightly sealed with a rubber plug 13, and the water tank 11 stores cooling water. The design of the lever 12 and the rubber plug 13 can control the flow of cooling water into the cooling water tank 16 so as to store cooling water for reuse in production.

[0025] To facilitate inspection, maintenance, and repair of the control box 21, a rubber anti-slip sleeve is fixedly fitted to the outer surface of the handle 24. A secondary magnetic block 26 is fixedly adhered inside the control box 21. Pulling the handle 24 causes the box door 23 to rotate and open around the hinge 22, allowing for inspection, maintenance, and repair of the control box 21. The secondary magnetic block 26 is securely attached to the side of the main magnetic block 25. The circulating water pipe 18 is fitted inside the water inlet pipe 19. The design of the main magnetic block 25 and the secondary magnetic block 26 allows for secure adhesion between them, preventing the box door 23 from automatically rotating and opening. The control box 21 is fitted with the box door 23. The lower end of the telescopic rod of the drive motor 110 is fixedly connected to the suction template 15. The design of the box door 23 can prevent the operator from touching the internal wires of the control box 21 and getting an electric shock, thus improving operational safety.

[0026] The vacuum forming mechanism for the case shell allows cooling water from the water tank 11 to flow into the cooling water tank 16 by pulling the lever 12 upwards, disengaging the rubber stopper 13 from the corrugated pipe 14. This facilitates cooling of the vacuum forming template 15. The water pump 17 draws water from the cooling water tank 16 and returns it to the water tank 11 via the circulation pipe 18, recycling the water resources. The lever 12 and rubber stopper 13 control the flow of cooling water into the cooling water tank 16 for storage and reuse in production. Pulling the handle 24 opens the case door 23, which rotates around the hinge 22, allowing for inspection and maintenance of the control box 21. The main magnet 25 and auxiliary magnet 26 are designed to firmly adhere to each other, preventing the case door 23 from opening automatically. The design of the case door 23 also prevents operators from touching the internal wiring of the control box 21 and causing electric shock, improving operational safety.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vacuum forming mechanism for a trolley case shell, comprising a top base (1), characterized in that: A water tank (11) is fixedly installed on the upper end of the top seat (1). A pull rod (12) is sleeved inside the water tank (11). A rubber stopper (13) is fixedly connected to the lower end of the pull rod (12). A corrugated pipe (14) is fixedly connected to the lower end of the water tank (11). A suction plate (15) is fixedly connected to the lower end of the corrugated pipe (14). A cooling water tank (16) is provided inside the suction plate (15). A water pump (17) is connected to the upper end of one side of the suction plate (15) through the corrugated pipe (14). A circulating water pipe is fixedly connected to the upper end of the water pump (17). (18) A water inlet pipe (19) is fixedly welded to the upper end of the water tank (11). A drive motor (110) is fixedly installed on the upper end of the top seat (1). A support column (2) is fixedly welded to the lower end of the top seat (1). A control box (21) is fixedly connected to the lower end of the support column (2). A hinge (22) is installed on the side of the control box (21). A door (23) is connected to the hinge (22). A handle (24) is fixedly welded to the outer side of the door (23). A main magnetic block (25) is fixedly connected to the lower end of one side of the door (23).

2. The vacuum forming mechanism for a trolley case shell according to claim 1, characterized in that: The corrugated pipe (14) is sleeved inside the top seat (1), and the lower end of the rubber plug (13) is tightly plugged into the corrugated pipe (14).

3. The vacuum forming mechanism for a trolley case shell according to claim 1, characterized in that: The lower end of the corrugated pipe (14) is connected to the cooling water tank (16), and a water pump (17) is fixedly installed on the upper end face of the top seat (1).

4. The vacuum forming mechanism for a trolley case shell according to claim 1, characterized in that: The lower end of the water tank (11) is sealed with a rubber stopper (13), and the interior of the water tank (11) stores cooling water.

5. The vacuum forming mechanism for a trolley case shell according to claim 1, characterized in that: The handle (24) is fixedly fitted with a rubber anti-slip sleeve on its outer surface, and the control box (21) is fixedly glued with a secondary magnetic block (26).

6. The vacuum forming mechanism for a trolley case shell according to claim 1, characterized in that: The main magnetic block (25) is fastened to the side with a secondary magnetic block (26), and the water inlet pipe (19) is internally connected to a circulating water pipe (18).

7. The vacuum forming mechanism for a trolley case shell according to claim 1, characterized in that: The control box (21) has an internal sleeve door (23), and the lower end of the telescopic rod of the drive motor (110) is fixedly connected to the suction template (15).

Citation Information

Patent Citations

  • Plastic uptake forming machine for draw-bar box production

    CN220008784U