Molded pulp wet pressing type forming die
By introducing a splash-proof cavity and a sealing mechanism into a pulp molding wet-pressing mold, the problem of water splashing is solved, and the safety of the production process and the cleanliness of the equipment are achieved.
Patent Information
- Application Number
- CN202422865572.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-22
AI Technical Summary
During the wet pressing process of pulp molding, water splashes through the gap between the upper mold and the lower mold, causing water to fall on workers or equipment.
A pulp molding wet pressing mold is designed, which includes an upper mold and a lower mold. A limit baffle is installed on the side wall of the lower mold, and a grouting molding cavity is provided in the lower mold. A splash-proof mechanism is installed at the lower end of the upper mold, including a splash-proof cavity and a sealing mechanism. The cooperation of the sealing mechanism and the splash-proof cavity prevents water from splashing.
Effectively prevent water from splashing onto workers or equipment, ensuring the safety of the production process and the cleanliness of the equipment.
Smart Images
Figure CN223481577U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold-related technology, specifically to a pulp molding wet pressing mold. Background Technology
[0002] Pulp molding is a crucial step in the production of molded pulp products. It employs a unique process design, using recycled pulp such as waste paper as the main raw material, to press three-dimensional paper-based products onto the mold. There are many types of pulp molds, including forming molds, shaping molds, sizing molds, transfer molds, and die-cutting molds. Each mold performs different functions, such as forming, shaping, sizing, transferring, and trimming. The design of these molds must meet the structural requirements of the molded pulp products, ensuring that the products maintain the required shape and dimensions during the molding process.
[0003] The raw material used in wet pressing molding is pulp. The pulp has a high water content. During the rapid extrusion molding process, some water will splash out through the gap between the upper and lower molds. The splashed water will fall on the workers or other equipment. Therefore, a pulp molding wet pressing molding die is proposed. Utility Model Content
[0004] The purpose of this invention is to provide a wet-press molding die for pulp molding, in order to solve the problem in the prior art where water splashes out through the gap between the upper and lower molds.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a pulp molding wet pressing mold, including an upper mold and a lower mold, a limit baffle fixedly installed on the side wall of the lower mold, a slurry injection molding cavity opened in the lower mold, an anti-splash mechanism fixedly installed at the lower edge of the upper mold, the anti-splash mechanism including a docking support fixedly installed on the upper mold, an anti-splash cavity fixedly installed on the docking support, a recycling opening opened on the inner side of the anti-splash cavity, an installation groove opened on the inner wall of the anti-splash cavity, a drain pipe fixedly installed at the bottom of the anti-splash cavity, a sealing mechanism connected to the anti-splash cavity, the sealing mechanism including an inflatable cylinder fixedly installed at the bottom of the anti-splash cavity to fix a hollow sealing ring fixedly installed in the installation groove, a connecting pipe provided between the inflatable cylinder and the hollow sealing ring, a return spring provided in the inflatable cylinder, a piston movably installed in the inflatable cylinder, a drive rod fixedly installed at the bottom of the piston, and the drive rod is aligned vertically with the limit baffle, the limit baffle can restrict the downward movement of the drive rod.
[0006] Preferably, the docking support leg has a docking through hole, and a screw is provided in the docking through hole. The docking support leg is fixed to the upper mold by the screw.
[0007] Preferably, the splash-proof cavity has an installation hole at the bottom, and the drain pipe is installed at the bottom of the splash-proof cavity through the installation hole, so that the splash-proof cavity will block the gap between the upper mold and the lower mold.
[0008] Preferably, the splash-proof cavity is installed on the upper mold via docking feet, and when the upper mold and the lower mold are closed, the recycling opening on the splash-proof cavity is aligned with the gap between the upper mold and the lower mold, so that the splashed water will enter the splash-proof cavity through the recycling opening.
[0009] Preferably, the inflation cylinder body is provided with a connection interface, and the connecting pipe is installed on the inflation cylinder body through the connection interface.
[0010] Preferably, the bottom of the splash-proof cavity is provided with an installation groove, and the inflation cylinder is installed at the bottom of the splash-proof cavity through the installation groove.
[0011] Preferably, the hollow sealing ring is installed inside the splash-proof cavity through the mounting groove. One end of the return spring is connected to the piston, and the other end of the return spring is connected to the upper end of the inflation cylinder. One end of the connecting pipe is connected to the hollow sealing ring, and the other end of the connecting pipe is connected to the inflation cylinder. The return spring provides elastic force to the piston, causing the piston to tend to move downward.
[0012] Compared with the prior art, the beneficial effects of the present invention are:
[0013] 1. In this application, when the upper mold moves downward, the anti-splash cavity will follow it downward. The anti-splash cavity moving downward will contact the lower mold in advance and block the gap between the upper and lower molds. During the extrusion molding process, water will splash out through the gap between the upper and lower molds. The splashed water will enter the anti-splash cavity through the recycling opening to prevent water from splashing onto the workers.
[0014] 2. In this application, the downward-moving drive rod is blocked by the limiting baffle. The piston of the drive rod blocked by the limiting baffle is pressed into the inflation cylinder, causing the hollow sealing ring to expand and block the gap between the splash-proof cavity and the lower mold, preventing splashed water from flowing out along the outer wall of the lower mold. After the upper mold moves upward, the return spring will push the piston to return to its original position, thereby drawing air into the inflation cylinder from the hollow sealing ring, causing the hollow sealing ring to contract, making it easier for the splash-proof cavity to detach from the lower mold. Attached Figure Description
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0016] Figure 2 This is a partial structural schematic diagram of the present invention;
[0017] Figure 3This is a schematic diagram of the splash-proof mechanism of this utility model;
[0018] Figure 4 This is a schematic diagram of the sealing mechanism of this utility model.
[0019] The following are the labeling elements in the diagram: 1. Upper mold; 2. Lower mold; 3. Limiting baffle; 4. Grouting cavity; 5. Anti-splash mechanism; 501. Anti-splash cavity; 502. Connecting support leg; 503. Connecting through hole; 504. Recycling opening; 505. Mounting groove; 506. Drain pipe; 6. Sealing mechanism; 601. Hollow sealing ring; 602. Connecting pipe; 603. Connecting interface; 604. Return spring; 605. Inflatable cylinder; 606. Piston; 607. Drive rod. Detailed Implementation
[0020] 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.
[0021] like Figure 1 and Figure 2 As shown, this utility model provides a technical solution for a wet-press molding die for pulp molding, including an upper die 1 and a lower die 2. A limit baffle 3 is fixedly installed on the side wall of the lower die 2, and a slurry injection molding cavity 4 is opened inside the lower die 2. A splash-proof mechanism 5 is fixedly installed at the lower edge of the upper die 1, and a splash-proof cavity 501 is fixedly installed on the connecting support leg 502. A sealing mechanism 6 is connected to the splash-proof cavity 501. The sealing mechanism 6 includes an air cylinder 605 fixedly installed at the bottom of the splash-proof cavity 501 and a hollow sealing ring 601 fixedly installed in the mounting groove 505. Through the cooperation of the splash-proof mechanism 5 and the sealing mechanism 6, water splashing out from the mold gaps can be prevented from splashing onto the workers.
[0022] like Figure 2 and Figure 3 As shown, the splash-proof mechanism 5 includes a docking support 502 fixedly installed on the upper mold 1. A splash-proof cavity 501 is fixedly installed on the docking support 502. A recycling opening 504 is opened on the inner side of the splash-proof cavity 501. An installation groove 505 is opened on the inner wall of the splash-proof cavity 501. A drain pipe 506 is fixedly installed at the bottom of the splash-proof cavity 501. A docking through hole 503 is opened on the docking support 502, and a screw is provided in the docking through hole 503. The docking support 502 is fixed to the upper mold 1 by screws.
[0023] Specifically, when the upper mold 1 moves downward, the anti-splash cavity 501 will move downward with it. The downward-moving anti-splash cavity 501 will contact the lower mold 2 in advance and block the gap between the upper mold 1 and the lower mold 2. During the extrusion molding process, water will splash out through the gap between the upper mold 1 and the lower mold 2. The splashed water will enter the anti-splash cavity 501 through the recycling opening 504 to prevent water from splashing onto the workers.
[0024] like Figure 2 and Figure 3 As shown, the sealing mechanism 6 includes an inflation cylinder 605 fixedly installed at the bottom of the splash-proof cavity 501 and a hollow sealing ring 601 fixedly installed in the mounting groove 505. A connecting pipe 602 is provided between the inflation cylinder 605 and the hollow sealing ring 601. A return spring 604 is provided inside the inflation cylinder 605. A piston 606 is movably installed inside the inflation cylinder 605. A drive rod 607 is fixedly installed at the bottom of the piston 606, and the drive rod 607 is vertically aligned with the limiting baffle 3. A connection interface 603 is provided on the inflation cylinder 605, and the connecting pipe 602 is installed on the inflation cylinder 605 through the connection interface 603.
[0025] Specifically, the downward-moving drive rod 607 is blocked by the limiting baffle 3. The piston 606, blocked by the limiting baffle 3, is pressed into the inflation cylinder 605, causing the hollow sealing ring 601 to expand and block the gap between the splash-proof cavity 501 and the lower mold 2, preventing splashed water from flowing out along the outer wall of the lower mold 2. After the upper mold 1 moves upward, the return spring 604 pushes the piston 606 to return to its original position, thereby drawing air from the hollow sealing ring 601 into the inflation cylinder 605, causing the hollow sealing ring 601 to contract, making it easier for the splash-proof cavity 501 to detach from the lower mold 2.
[0026] Working principle: During use, pulp is first injected into the injection molding cavity 4. After injection, the upper mold 1 can be controlled to move downwards. As the upper mold 1 moves downwards, the anti-splash cavity 501 and the drive rod 607 also move downwards. The downward-moving anti-splash cavity 501 will contact the lower mold 2 in advance, blocking the gap between the upper mold 1 and the lower mold 2. When the upper mold 1 moves downwards, it will squeeze the pulp in the injection molding cavity 4 into a workpiece. During the squeezing process, water will splash out through the gap between the upper mold 1 and the lower mold 2. The splashed water will enter the anti-splash cavity 501 through the recovery opening 504, preventing water from splashing onto the workers. The downward-moving drive rod 607... The push rod 607 is blocked by the limiting baffle 3. The piston 606, which drives the push rod 607 and is blocked by the limiting baffle 3, is pressed into the inflation cylinder 605, thereby forcing the gas in the inflation cylinder 605 into the hollow sealing ring 601, causing the hollow sealing ring 601 to expand and block the gap between the anti-splash cavity 501 and the lower mold 2, preventing splashed water from flowing out along the outer wall of the lower mold 2. After the workpiece is processed, the upper mold 1 can be controlled to move upward. After the upper mold 1 moves upward, the return spring 604 will push the piston 606 to return to its original position, thereby drawing the air in the hollow sealing ring 601 into the inflation cylinder 605, causing the hollow sealing ring 601 to contract, making it easier for the anti-splash cavity 501 to detach from the lower mold 2.
[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A pulp molding wet pressing mold, comprising an upper mold (1) and a lower mold (2), wherein a limit baffle (3) is fixedly installed on the side wall of the lower mold (2), and a pulp injection molding cavity (4) is provided inside the lower mold (2), characterized in that: A splash-proof mechanism (5) is fixedly installed at the lower edge of the upper mold (1). The splash-proof mechanism (5) includes a docking support (502) fixedly installed on the upper mold (1). A splash-proof cavity (501) is fixedly installed on the docking support (502). A recycling opening (504) is provided inside the splash-proof cavity (501). An installation groove (505) is provided on the inner wall of the splash-proof cavity (501). A drain pipe (506) is fixedly installed at the bottom of the splash-proof cavity (501). A sealing mechanism (6) is connected to the splash-proof cavity (501). The mechanism (6) includes an inflation cylinder (605) fixedly installed at the bottom of the splash-proof cavity (501) and a hollow sealing ring (601) fixedly installed in the mounting groove (505). A connecting pipe (602) is provided between the inflation cylinder (605) and the hollow sealing ring (601). A return spring (604) is provided inside the inflation cylinder (605). A piston (606) is movably installed inside the inflation cylinder (605). A drive rod (607) is fixedly installed at the bottom of the piston (606), and the drive rod (607) is vertically aligned with the limiting baffle (3).
2. The pulp molding wet pressing mold according to claim 1, characterized in that: The docking support (502) has a docking through hole (503) and a screw is provided in the docking through hole (503). The docking support (502) is fixed to the upper mold (1) by the screw.
3. The pulp molding wet pressing mold according to claim 2, characterized in that: The splash-proof cavity (501) has an installation hole at its bottom, and the drain pipe (506) is installed at the bottom of the splash-proof cavity (501) through the installation hole.
4. The pulp molding wet pressing mold according to claim 3, characterized in that: The splash-proof cavity (501) is mounted on the upper mold (1) via a docking support (502), and when the upper mold (1) and the lower mold (2) are closed, the recycling opening (504) on the splash-proof cavity (501) is aligned with the gap between the upper mold (1) and the lower mold (2).
5. The pulp molding wet pressing mold according to claim 4, characterized in that: The inflation cylinder (605) is provided with a connection interface (603), and the connecting pipe (602) is installed on the inflation cylinder (605) through the connection interface (603).
6. The pulp molding wet pressing mold according to claim 1, characterized in that: The splash-proof cavity (501) has an installation groove at its bottom, and the inflation cylinder (605) is installed at the bottom of the splash-proof cavity (501) through the installation groove.
7. The pulp molding wet pressing mold according to claim 1, characterized in that: The hollow sealing ring (601) is installed inside the splash-proof cavity (501) through the mounting groove (505). One end of the return spring (604) is connected to the piston (606), and the other end of the return spring (604) is connected to the upper end of the inflation cylinder (605). One end of the connecting pipe (602) is connected to the hollow sealing ring (601), and the other end of the connecting pipe (602) is connected to the inflation cylinder (605).