Glass lunch box forming mold

By designing detachable bottom mold components and plug-in fixing components, the problem of cumbersome and laborious demolding of glass lunch box forming molds was solved, achieving stable molding and efficient demolding, and improving production efficiency.

CN224132901UActive Publication Date: 2026-04-17NINGBO JINGJIN HOUSEHOLD PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO JINGJIN HOUSEHOLD PROD CO LTD
Filing Date
2025-05-21
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing glass lunchbox molding molds are complex, cumbersome, and labor-intensive in the demolding process, resulting in low production efficiency.

Method used

A mold structure including a base frame, a fixed frame, a cylinder, a lifting plate, an upper mold, and a bottom mold assembly is designed. The bottom mold assembly consists of a detachable first mold frame and a second mold frame. The mold frames can be quickly assembled and separated by plugging in the fixing components, simplifying the demolding operation.

Benefits of technology

This technology enables stable molding and rapid demolding of glass lunch boxes, improving production efficiency and reducing labor intensity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of dies, and discloses a glass lunch box forming die which comprises a bottom frame, a fixing frame fixedly installed on the upper end face of the bottom frame, an air cylinder fixedly installed at the center of the upper end face of the fixing frame, a lifting plate fixedly connected to the piston end of the air cylinder, and an upper die fixedly installed on the lower end face of the lifting plate. A positioning disc is fixedly installed at the center of the upper end face of the bottom frame, a bottom mold assembly is arranged on the upper end face of the positioning disc, the first mold frame and the second mold frame are combined, the first installation plate and the second installation plate are made to be close to each other, and then the first installation plate and the second installation plate are fixed together by penetrating a plug-in fixing assembly through a first penetrating hole and a second penetrating hole. And after the glass lunch box is formed, fixation is relieved by operating the inserting and fixing assembly, the first mold frame and the second mold frame can be easily separated, and demolding operation is achieved. By means of the design, the stability of the mold cavity in the forming process is guaranteed, demolding is facilitated, and the production efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a glass lunch box forming mold. Background Technology

[0002] A glass lunchbox is a container made of glass for holding food. In the production and manufacturing of glass lunchboxes, molds are used to shape and size the lunchboxes during the molding process. After the glass lunchboxes are formed, they need to be demolded.

[0003] Existing equipment has some drawbacks in use. For example, in the demolding process, the existing mold design is usually quite complex, and the demolding process is cumbersome and laborious. Operators need to spend a lot of time and energy to disassemble the mold, which not only increases labor intensity but also greatly reduces production efficiency and cannot meet the needs of large-scale production. Utility Model Content

[0004] The purpose of this invention is to provide a glass lunchbox molding mold that solves the problem of a cumbersome and laborious demolding process.

[0005] This utility model provides the following technical solution: a glass lunch box forming mold, including a base frame, a fixed frame is fixedly installed on the upper end face of the base frame, a cylinder is fixedly installed at the center of the upper end face of the fixed frame, a lifting plate is fixedly connected to the piston end of the cylinder, an upper mold is fixedly installed on the lower end face of the lifting plate, a positioning plate is fixedly installed at the center of the upper end face of the base frame, and a bottom mold assembly is provided on the upper end face of the positioning plate.

[0006] As a preferred embodiment of the above technical solution, the bottom mold assembly includes a first mold frame and a second mold frame, which are combined to form a mold cavity. A first handle is fixedly connected to the outer wall of the first mold frame, and a second handle is fixedly connected to the outer wall of the second mold frame. A first mounting plate is fixedly connected to the upper end face of the first handle, and a first through hole is provided on the first mounting plate. A second mounting plate is fixedly connected to the upper end face of the second handle, and a second through hole is provided on the second mounting plate. A plug-in fixing component for fixing the first mounting plate and the second mounting plate is provided on the side wall of the first mounting plate.

[0007] As a preferred embodiment of the above technical solution, the plug-in fixing assembly includes an L-shaped plate fixed to the side wall of the first mounting plate, a limiting slide rod is transversely arranged on the L-shaped plate, the limiting slide rod is slidably connected to the L-shaped plate, a pressing plate is fixedly sleeved on the outer wall of the limiting slide rod, a return spring is provided between the pressing plate and the L-shaped plate, and a pull handle is fixedly connected to the outer wall of the limiting slide rod.

[0008] As a preferred embodiment of the above technical solution, the reset spring is wound around the outer wall of the limiting slide rod, one end of the reset spring is fixed to the side wall of the extrusion plate, and the other end of the reset spring is fixed to the side wall of the L-shaped plate.

[0009] As a preferred embodiment of the above technical solution, the upper end face of the positioning disk is fixed with a ring array of multiple positioning posts.

[0010] As a preferred embodiment of the above technical solution, rectangular openings are provided on the opposite side walls of the fixed frame, and limiting slides are fixedly connected to the opposite side outer walls of the lifting plate, with the two limiting slides inserted into the corresponding rectangular openings.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] In this invention, a first mold frame and a second mold frame are combined, bringing the first mounting plate and the second mounting plate close together. Then, a plug-in fixing component is used to pass through the first and second through holes to fix the first and second mounting plates together, completing the assembly of the bottom mold assembly. After the glass lunchbox is formed, the first and second mold frames can be easily separated by operating the plug-in fixing component, achieving demolding. This design ensures the stability of the mold cavity during the forming process, facilitates demolding, and improves production efficiency. Attached Figure Description

[0013] Figure 1 A schematic diagram of the overall three-dimensional structure of a glass lunchbox molding mold;

[0014] Figure 2 This is a partially enlarged structural diagram of a glass lunchbox molding die;

[0015] Figure 3 A schematic diagram of a partial explosion of a glass lunchbox molding die;

[0016] Figure 4 This is an enlarged structural diagram of the positioning disc.

[0017] In the diagram: 1. Base frame; 11. Fixing frame; 12. Cylinder; 13. Lifting plate; 14. Upper mold; 15. Positioning plate; 16. Positioning post; 17. Rectangular opening; 18. Limiting slide bar; 2. Bottom mold assembly; 21. First mold frame; 22. Second mold frame; 23. First handle; 24. Second handle; 25. First mounting plate; 26. First through hole; 27. Second mounting plate; 28. Second through hole; 3. Insertion fixing assembly; 31. L-shaped plate; 32. Limiting slide bar; 33. Extrusion plate; 34. Return spring; 35. Pull handle. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Example

[0019] like Figures 1-4 As shown, this utility model provides a technical solution: a glass lunchbox forming mold, including a base frame 1, a fixed frame 11 fixedly installed on the upper end face of the base frame 1, a cylinder 12 fixedly installed at the center of the upper end face of the fixed frame 11, a lifting plate 13 fixedly connected to the piston end of the cylinder 12, an upper mold 14 fixedly installed on the lower end face of the lifting plate 13, a positioning plate 15 fixedly installed at the center of the upper end face of the base frame 1, and a bottom mold assembly 2 provided on the upper end face of the positioning plate 15. In specific use, the cylinder 12 drives the lifting plate 13 to move up and down reciprocally, thereby driving the upper mold 14 to move up and down. The upper mold 14 and the bottom mold assembly 2 cooperate with each other to complete the forming operation of the glass lunchbox. The bottom mold assembly 2 is a detachable structure, which facilitates demolding operation and improves production efficiency and operational convenience.

[0020] As one implementation method in this embodiment, such as Figure 2 and Figure 3 As shown, the bottom mold assembly 2 includes a first mold frame 21 and a second mold frame 22. The first mold frame 21 and the second mold frame 22 are combined to form a mold cavity. A first handle 23 is fixedly connected to the outer wall of the first mold frame 21, and a second handle 24 is fixedly connected to the outer wall of the second mold frame 22. A first mounting plate 25 is fixedly connected to the upper end face of the first handle 23. A first through hole 26 is provided on the first mounting plate 25. A second mounting plate 27 is fixedly connected to the upper end face of the second handle 24. A second through hole 28 is provided on the second mounting plate 27. A fixing device for fixing the first mounting plate 25 is provided on the side wall of the first mounting plate 25. In practical use, the operator combines the first mold frame 21 and the second mold frame 22, bringing the first mounting plate 25 and the second mounting plate 27 close together. Then, the plug-in fixing component 3 passes through the first through hole 26 and the second through hole 28 to fix the first mounting plate 25 and the second mounting plate 27 together, completing the assembly of the bottom mold component 2. After the glass lunch box is formed, the first mold frame 21 and the second mold frame 22 can be easily separated by operating the plug-in fixing component 3, realizing the demolding operation. This design not only ensures the stability of the mold cavity during the molding process but also facilitates demolding, improving production efficiency.

[0021] As one implementation method in this embodiment, such as Figure 2As shown, the plug-in fixing assembly 3 includes an L-shaped plate 31 fixed to the side wall of the first mounting plate 25. A limiting slide rod 32 is transversely disposed on the L-shaped plate 31. The limiting slide rod 32 is slidably connected to the L-shaped plate 31. A pressing plate 33 is fixedly sleeved on the outer wall of the limiting slide rod 32. A return spring 34 is disposed between the pressing plate 33 and the L-shaped plate 31. A pull handle 35 is fixedly connected to the outer wall of the limiting slide rod 32. The return spring 34 is wound around the outer wall of the limiting slide rod 32. One end of the return spring 34 is fixed to the side wall of the pressing plate 33, and the other end of the return spring 34 is fixed to the side wall of the L-shaped plate 31. The side wall of plate 31 is fixed. In specific use, when it is necessary to fix the first mounting plate 25 and the second mounting plate 27 together, the operator pulls the pull handle 35, which drives the limiting slide rod 32 to slide outward. At the same time, the squeezing plate 33 also moves, compressing the return spring 34 and storing elastic potential energy in the return spring 34. At this time, the first mounting plate 25 and the second mounting plate 27 are brought closer to each other, so that the first through hole 26 and the second through hole 28 are aligned. Then the pull handle 35 is released. Under the action of the elastic potential energy of the return spring 34, the squeezing plate 33 pushes the limiting slide rod 32 to slide inward, passing through the first through hole 26 and the second through hole 28, thereby fixing the first mounting plate 25 and the second mounting plate 27 and firmly combining the first mold frame 21 and the second mold frame 22 together, providing a stable mold cavity for the molding of the glass lunch box.

[0022] As one implementation method in this embodiment, such as Figure 4 As shown, a plurality of positioning posts 16 are fixed in a ring array on the upper end face of the positioning disk 15. The positioning posts 16 are used to position the first mold frame 21 and the second mold frame 22, so that the mold cavity is directly below the upper mold 14.

[0023] As one implementation method in this embodiment, such as Figure 1 As shown, rectangular openings 17 are provided on the opposite side walls of the fixed frame 11. Limiting slide bars 18 are fixedly connected to the opposite side outer walls of the lifting plate 13. The two limiting slide bars 18 are inserted into the corresponding rectangular openings 17. In actual use, when the cylinder 12 is started, its piston end drives the lifting plate 13 to move up and down reciprocally. The limiting slide bars 18 fixed on both sides of the lifting plate 13 will slide along the rectangular openings 17 on the fixed frame 11. The rectangular openings 17 play a role in restricting and guiding the limiting slide bars 18, so that the lifting plate 13 can only move in the vertical direction and will not deviate or shake in the horizontal direction. This ensures the accuracy of the fit between the upper mold 14 and the bottom mold assembly 2, thereby ensuring the forming quality of the glass lunch box.

[0024] Working principle: When it is necessary to fix the first mounting plate 25 and the second mounting plate 27 together, the operator pulls the pull handle 35, causing the limiting slide bar 32 to slide outward. At the same time, the pressing plate 33 also moves, compressing the return spring 34 and storing elastic potential energy. At this time, the first mounting plate 25 and the second mounting plate 27 are brought closer together, aligning the first through hole 26 and the second through hole 28. Then, the pull handle 35 is released. Under the action of the elastic potential energy of the return spring 34, the pressing plate 33 pushes the limiting slide bar 32. Slide inwards, passing through the first perforation 26 and the second perforation 28, thereby fixing the first mounting plate 25 and the second mounting plate 27, firmly combining the first mold frame 21 and the second mold frame 22 together, providing a stable mold cavity for the molding of the glass lunch box. Then, the cylinder 12 drives the lifting plate 13 to move up and down reciprocally, thereby driving the upper mold 14 to move up and down. The upper mold 14 cooperates with the first mold frame 21 and the second mold frame 22 to complete the molding operation of the glass lunch box. After the glass lunch box is molded, a demolding operation is required. At this time, the operator pulls the pull handle 35 again, causing the limit slide rod 32 to slide outwards, disengage from the second perforation 28, and release the fixation of the first mounting plate 25 and the second mounting plate 27. Then, the operator can separate the first mold frame 21 and the second mold frame 22 through the first handle 23 and the second handle 24, take out the molded glass lunch box, and complete the demolding operation.

[0025] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A glass lunchbox forming mold, comprising a base frame (1), characterized in that: A fixed frame (11) is fixedly installed on the upper end face of the base frame (1). A cylinder (12) is fixedly installed at the center of the upper end face of the fixed frame (11). A lifting plate (13) is fixedly connected to the piston end of the cylinder (12). An upper mold (14) is fixedly installed on the lower end face of the lifting plate (13). A positioning plate (15) is fixedly installed at the center of the upper end face of the base frame (1). A bottom mold assembly (2) is provided on the upper end face of the positioning plate (15).

2. The glass lunch box forming mold according to claim 1, characterized by: The bottom mold assembly (2) includes a first mold frame (21) and a second mold frame (22). The first mold frame (21) and the second mold frame (22) are combined to form a mold cavity. A first handle (23) is fixedly connected to the outer wall of the first mold frame (21). A second handle (24) is fixedly connected to the outer wall of the second mold frame (22). A first mounting plate (25) is fixedly connected to the upper end face of the first handle (23). A first through hole (26) is provided on the first mounting plate (25). A second mounting plate (27) is fixedly connected to the upper end face of the second handle (24). A second through hole (28) is provided on the second mounting plate (27). A plug-in fixing assembly (3) for fixing the first mounting plate (25) and the second mounting plate (27) is provided on the side wall of the first mounting plate (25).

3. The glass lunch box forming mold according to claim 2, characterized by: The plug-in fixing assembly (3) includes an L-shaped plate (31) fixed to the side wall of the first mounting plate (25). A limiting slide rod (32) is transversely arranged on the L-shaped plate (31). The limiting slide rod (32) is slidably connected to the L-shaped plate (31). A pressing plate (33) is fixedly sleeved on the outer wall of the limiting slide rod (32). A return spring (34) is provided between the pressing plate (33) and the L-shaped plate (31). A pull handle (35) is fixedly connected to the outer wall of the limiting slide rod (32).

4. The glass lunch box forming mold according to claim 3, characterized by: The reset spring (34) is wound around the outer wall of the limiting slide bar (32). One end of the reset spring (34) is fixed to the side wall of the extrusion plate (33), and the other end of the reset spring (34) is fixed to the side wall of the L-shaped plate (31).

5. The glass lunch box forming mold according to claim 1, characterized by: The upper end face of the positioning disk (15) is fixed with a ring array of multiple positioning posts (16).

6. The glass lunch box forming mold according to claim 1, characterized by: The fixed frame (11) has rectangular openings (17) on its opposite side walls, and the lifting plate (13) has limit slides (18) fixedly connected to its opposite side outer walls. The two limit slides (18) are inserted into the corresponding rectangular openings (17).