Forming die for producing dry pressing paper support

By designing a forming mold for dry-pressed paper tray production, and using a motor-driven screw and cutting assembly to achieve edge cutting of the paper tray, the problem of needing to move to a cutting device to remove the edges in the existing technology is solved, thus improving production efficiency.

CN224077872UActive Publication Date: 2026-04-03SHANDONG LUDI QINGQING ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-17
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

In current paper tray production, after forming, the trays need to be moved to cutting equipment for edge and burr removal, which affects production efficiency.

Method used

Design a forming mold for dry-pressed paper tray production, including components such as a base plate, lower mold, upper mold, slide rail, motor, screw, and pressure cutter. The motor drives the screw to move the mold and the cutter to cut, thereby achieving edge cutting and complete separation of the paper tray.

Benefits of technology

The edges of the paper trays can be removed without additional cutting equipment, improving production efficiency and saving time.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of paper tray production, and particularly relates to a forming die for dry pressing paper tray production, which comprises a bottom plate, a first sliding rail is fixedly connected to one side of the bottom plate, a supporting plate is slidably connected to the inside of the first sliding rail, an upper die is mounted on the lower surface of the supporting plate, a first motor is fixedly mounted at the top of the first sliding rail, and a second motor is mounted at the bottom of the first sliding rail. The output end of the first motor is fixedly connected with a first screw rod, and grooves are formed in the upper surface of the lower mold and the lower surface of the upper mold correspondingly. In the pressing process of the upper die, the second pressing cutter can cut off the edge part of the paper support from top to bottom and is matched with the first pressing cutter, so that the pressed part and the non-pressed part of a paperboard are cut, and through the arrangement of the connecting plate, the second pressing cutter and the cutter of the paperboard at the connecting plate cannot cut off a connecting point, so that the paper support is cut off. The second motor can drive the second screw rod to rotate, the second screw rod can drive the third sliding rail to horizontally move along the second sliding rail, and therefore the square frame can be driven to move to the position above the lower die.
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Description

Technical Field

[0001] This utility model belongs to the field of paper tray production technology, specifically relating to a forming mold for dry-pressed paper tray production. Background Technology

[0002] Paper trays are an environmentally friendly packaging material, scientifically known as molded pulp. They are primarily made from waste paper pulp, cardboard scraps, newsprint, and white pure wood pulp, through processes such as pulping, blending, vacuum adsorption molding, and drying. Paper trays offer excellent shock absorption, impact resistance, antistatic properties, and corrosion resistance, while being environmentally friendly, making them an ideal green packaging material. Their applications are very wide-ranging, including packaging for electronics, electrical appliances, computers, mechanical parts, industrial instruments, craft glass, ceramics, toys, and pharmaceuticals. In addition, paper trays are also used for food bowls, basins, supermarket food trays, and disposable tableware. Most existing paper trays are molded and formed using molds.

[0003] In the current paper tray production process, after the paper tray is pressed into shape by a mold, it still needs to be transferred to a cutting device to cut and remove the edges and burrs. Therefore, this process significantly impacts production efficiency. Utility Model Content

[0004] To address the problems mentioned in the background art, this utility model provides a forming mold for dry-pressed paper tray production, which solves the problem that the paper trays still need to be transferred to the cutting equipment after being pressed by the mold, which affects production efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a forming mold for dry-pressed paper tray production, comprising a base plate, a lower mold installed inside the base plate, a slide rail fixedly connected to one side of the base plate, a support plate slidably connected inside the slide rail, an upper mold mounted on the lower surface of the support plate, a motor fixedly mounted on the top of the slide rail, a screw fixedly connected to the output end of the motor, grooves formed on the upper surface of the lower mold and the lower surface of the upper mold, and a screw fixedly connected to the upper surface of the base plate. The upper mold has a first cutting blade, a second cutting blade fixedly connected inside the upper mold, a connecting plate fixedly connected inside the groove, a second slide rail fixedly installed on the upper surface of the base plate, a second motor fixedly installed on one side of the second slide rail, a second screw fixedly connected to the output end of the second motor, a third slide rail threadedly connected to the surface of the second screw, a third slide block slidably installed inside the third slide rail, a square frame fixedly connected to the bottom end of the slide block, a third cutting blade fixedly connected to the lower surface of the square frame, and an electric telescopic rod fixedly installed on the top of the third slide rail.

[0006] Preferably, the lower mold and the upper mold are positioned vertically corresponding.

[0007] Preferably, the screw is threadedly connected to the support plate.

[0008] Preferably, the first cutting blade and the second cutting blade are in opposite directions and their positions overlap vertically.

[0009] Preferably, the slide rail three is slidably installed inside the slide rail two.

[0010] Preferably, the bottom end of the electric telescopic rod is fixedly connected to the slide block.

[0011] Preferably, the position of the cutting blade three corresponds to the position of the connecting plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The forming mold for dry-pressed paper tray production uses a motor to easily drive a screw to rotate. The screw then moves the support plate and upper mold vertically within the slide rail. The upper mold moves downward and presses down to form the paper tray. During the pressing process of the upper mold, a pressure cutter, working in conjunction with the pressure cutter, cuts off the edge of the paper tray from top to bottom, separating the pressed and unpressed parts of the cardboard. A connecting plate prevents the pressure cutter and the cutter from cutting at the cardboard, creating a connection point. The motor drives the screw to rotate, which in turn moves the slide rail horizontally along the slide rail. This facilitates moving the frame above the lower mold. Since the position of the pressure cutter corresponds to the position of the connecting plate, the electric extension rod moves the slide and frame downward. The pressure cutter then cuts the connection point of the cardboard, completely separating the formed paper tray from the cardboard. This eliminates the need for edge trimming with a cutting device, saving time. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model, used together with the embodiments of this utility model to explain this utility model, and do not constitute a limitation on this utility model. In the drawings:

[0015] Figure 1 This is a complete structural schematic diagram of the present invention;

[0016] Figure 2 This is a structural diagram of the present invention from a lower perspective;

[0017] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0018] In the diagram: 1. Base plate; 2. Lower mold; 3. Slide rail one; 4. Support plate; 5. Upper mold; 6. Motor one; 7. Screw one; 8. Groove; 9. Cutting blade one; 10. Cutting blade two; 11. Connecting plate; 12. Slide rail two; 13. Motor two; 14. Screw two; 15. Slide rail three; 16. Slide seat; 17. Frame; 18. Cutting blade three; 19. Electric telescopic rod. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-3 This utility model provides the following technical solution: a forming mold for dry-pressed paper tray production, including a base plate 1, a lower mold 2 installed inside the base plate 1, a slide rail 3 fixedly connected to one side of the base plate 1, a support plate 4 slidably connected inside the slide rail 3, an upper mold 5 installed on the lower surface of the support plate 4, a motor 6 fixedly installed on the top of the slide rail 3, a screw 7 fixedly connected to the output end of the motor 6, grooves 8 being formed on the upper surface of both the lower mold 2 and the lower surface of the upper mold 5, a cutting blade 9 fixedly connected to the upper surface of the base plate 1, and a groove 8 being formed inside the upper mold 5. A cutting blade 10 is fixedly connected to the bottom plate 1. A connecting plate 11 is fixedly connected to the inside of the groove 8. A slide rail 12 is fixedly installed on the upper surface of the bottom plate 1. A motor 13 is fixedly installed on one side of the slide rail 12. A screw 14 is fixedly connected to the output end of the motor 13. A slide rail 15 is threadedly connected to the surface of the screw 14. A slide block 16 is slidably installed inside the slide rail 15. A square frame 17 is fixedly connected to the bottom end of the slide block 16. A cutting blade 18 is fixedly connected to the lower surface of the square frame 17. An electric telescopic rod 19 is fixedly installed on the top of the slide rail 15.

[0021] In this embodiment, the motor 6 facilitates the rotation of the screw 7, which in turn drives the support plate 4 and the upper mold 5 to move vertically within the slide rail 3. The downward movement of the upper mold 5, through pressing, shapes the paper tray. During the pressing process of the upper mold 5, the pressure cutter 10, working in conjunction with the pressure cutter 9, cuts off the edge of the paper tray from top to bottom, thus separating the pressed and unpressed portions of the cardboard. Due to the connection plate 11, the cardboard pressure cutter 10 and the cutter 9 at the connection plate 11 cannot reach the edges, resulting in… The connection point is driven by motor 213 to rotate screw 214. Screw 214 can drive slide rail 315 to move horizontally along slide rail 212, which helps to move the square frame 17 to the top of the lower mold 2. Since the position of the pressure cutter 318 corresponds to the position of the connecting plate 11, the electric extension rod 19 drives the slide 16 and the square frame 17 to move down. The pressure cutter 318 can cut the connection point of the cardboard, so that the formed paper tray is completely separated from the cardboard. There is no need to use cutting equipment to remove the edges of the paper tray, saving time.

[0022] Specifically, the lower mold 2 and the upper mold 5 are positioned vertically, so that the rotation of the screw 7 can drive the upper mold 5 to move down and combine with the lower mold 2, pressing the cardboard into a paper tray.

[0023] Specifically, screw 7 is threadedly connected to support plate 4. The motor 6 can drive screw 7 to rotate, and the rotation of screw 7 can drive support plate 4 to slide up and down in slide rail 3.

[0024] Specifically, the first cutting blade 9 and the second cutting blade 10 are in opposite directions and are vertically aligned. The second cutting blade 10 can fit into the first cutting blade 9 after it is moved downward, which is beneficial for cutting the cardboard.

[0025] Specifically, slide rail 3 15 is slidably installed inside slide rail 2 12, so that slide rail 3 15 can be moved inside slide rail 2 12 by the drive of screw 2 14, which is beneficial to adjust the position of frame 17 and cutter 3 18.

[0026] Specifically, the bottom end of the electric telescopic rod 19 is fixedly connected to the slide 16, so that when the bottom end of the electric telescopic rod 19 extends or retracts, it can drive the slide 16 to move vertically.

[0027] Specifically, the position of the cutting blade 18 corresponds to the position of the connecting plate 11. Thus, when the frame 17 is above the lower mold 2, the frame 17 moves down and can drive the cutting blade 18 to press down on the connection point of the cardboard, so that the paper tray and the cardboard can be completely separated.

[0028] The working principle or usage process of this utility model is as follows: First, the cardboard is placed above the lower mold 2. Then, by controlling the motor 6 to start, the screw 7 rotates. The screw 7 then drives the support plate 4 and the upper mold 5 to move vertically within the slide rail 3. The upper mold 5 moves downwards, pressing down to form the paper tray. During the pressing process of the upper mold 5, the pressure cutter 10, working in conjunction with the pressure cutter 9, cuts the edge of the paper tray from top to bottom, thus separating the pressed and unpressed parts of the cardboard. The cardboard pressure cutter 10 and the cutter 9 at the connecting plate 11 cannot reach the paper tray, forming a connection point. Then, the motor 6 drives the screw 7 to rotate in the opposite direction, causing the upper mold 4 to rotate vertically. Mold 5 moves upward, then motor 2 13 starts and drives screw 2 14 to rotate. Screw 2 14 drives slide rail 3 15 to move horizontally along slide rail 2 12, thereby moving frame 17 to above lower mold 2, so that the position of pressure cutter 3 18 corresponds vertically with the position of connecting plate 11. Then, the telescopic end of electric extension rod 19 is controlled to extend downward, causing slide 16 and frame 17 to move downward. Pressure cutter 3 18 can cut the connection point of the cardboard, thereby completely separating the formed paper tray from the cardboard. There is no need to perform edge trimming of the paper tray through cutting equipment, saving time. All electrical equipment in this device is externally powered and is controlled by matching control switches to operate and shut down.

[0029] Finally, it should be noted that the above descriptions are merely preferred embodiments of this utility model and are not intended to limit the utility model. The selection and detailed description of these embodiments in this specification are for the purpose of better explaining the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A forming mold for dry-pressed paper tray production, comprising a base plate (1), wherein a lower mold (2) is installed inside the base plate (1), and a slide rail (3) is fixedly connected to one side of the base plate (1), characterized in that: The slide rail (3) is internally connected to a support plate (4). An upper mold (5) is mounted on the lower surface of the support plate (4). A motor (6) is fixedly mounted on the top of the slide rail (3). A screw (7) is fixedly connected to the output end of the motor (6). Grooves (8) are provided on the upper surface of the lower mold (2) and the lower surface of the upper mold (5). A cutting blade (9) is fixedly connected to the upper surface of the base plate (1). A cutting blade (10) is fixedly connected inside the upper mold (5). A connecting plate (11) is fixedly connected inside the groove (8). A slide rail 2 (12) is fixedly installed on the upper surface of the base plate (1). A motor 2 (13) is fixedly installed on one side of the slide rail 2 (12). A screw 2 (14) is fixedly connected to the output end of the motor 2 (13). A slide rail 3 (15) is threadedly connected to the surface of the screw 2 (14). A slide seat (16) is slidably installed inside the slide rail 3 (15). A square frame (17) is fixedly connected to the bottom end of the slide seat (16). A pressure cutter 3 (18) is fixedly connected to the lower surface of the square frame (17). An electric telescopic rod (19) is fixedly installed on the top of the slide rail 3 (15).

2. The forming mold for dry-pressed paper tray production according to claim 1, characterized in that: The lower mold (2) and the upper mold (5) are positioned vertically corresponding.

3. The forming mold for dry-pressed paper tray production according to claim 1, characterized in that: The screw (7) is threadedly connected to the support plate (4).

4. The forming mold for dry-pressed paper tray production according to claim 1, characterized in that: The first cutting blade (9) and the second cutting blade (10) are in opposite directions and their positions overlap vertically.

5. The forming mold for dry-pressed paper tray production according to claim 1, characterized in that: The slide rail three (15) is slidably installed inside the slide rail two (12).

6. The forming mold for dry-pressed paper tray production according to claim 1, characterized in that: The bottom end of the electric telescopic rod (19) is fixedly connected to the slide (16).

7. The forming mold for dry-pressed paper tray production according to claim 1, characterized in that: The position of the cutting blade (18) corresponds to the position of the connecting plate (11).