Polyurethane pressing equipment

The sealed barrel structure, which combines a vacuum suction tube and a hydraulic cylinder, solves the problem of inaccurate positioning of raw materials and molds during polyurethane pressing, achieving higher pressing precision and stability, and preventing the formation of bubbles.

CN223532844UActive Publication Date: 2025-11-11CIXIHENGLITONGBUDAILUN CO LTD
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Patent Information

Application Number
CN202423009364.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-06
Publication Date
2025-11-11
Estimated Expiration
2034-12-06

AI Technical Summary

Technical Problem

During the polyurethane pressing process, the raw material sealing and mold positioning are difficult to place accurately, resulting in poor pressing effect and affecting precision.

Method used

The sealed barrel structure, which combines a vacuum suction tube and a hydraulic cylinder, ensures that the raw materials and molds are precisely positioned inside the sealed barrel through vacuum pumping and hydraulic control. The precise movement and clamping of the raw materials and molds are achieved by using a motor and lead screw system.

Benefits of technology

It improves the precision and stability of the polyurethane pressing process, avoids the formation of air bubbles between the raw materials and the mold, and enhances the pressing effect.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223532844U_ABST
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Abstract

The utility model provides polyurethane pressing equipment, which relates to the technical field of polyurethane processing and comprises a worktable, a metal table is movably mounted in the worktable, a support frame is mounted at one end of the upper surface of the worktable, a connecting plate is movably mounted at the lower end of the interior of the support frame, and a sealing barrel is mounted at the lower end of the connecting plate. And the sealing barrel is parallel to the metal table up and down. After raw materials are placed on the surface of the metal table by a user, a first hydraulic cylinder can push a sealing barrel to be attached to the surface of the metal table, then a second electric push rod can push an annular frame to move downwards, and the annular frame is matched with an inclined frame to push a movable rod to move inwards; and then, after a user places a mold on the surface of the metal table, the metal table can be located in the middle through cooperation of the movable rod and the push plate again, and therefore the raw materials are more accurate in the pressing process.
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Description

Technical Field

[0001] This utility model relates to the field of polyurethane processing technology, and more specifically, to a polyurethane pressing device. Background Technology

[0002] Polyurethane pressing equipment is an important piece of equipment in modern chemical production, mainly used to produce polyurethane materials. When processing polyurethane using pressing equipment, users usually need to place the raw material on the surface of a metal table first. However, deviations can easily occur during the sealing and lifting of the raw material, affecting the subsequent pressing effect. At the same time, it is also difficult to ensure the accurate position of the mold when placing and setting it up, which further affects the pressing accuracy. Therefore, we propose a polyurethane pressing equipment to solve the above problems. Utility Model Content

[0003] The main purpose of this utility model is to provide a polyurethane pressing device, which solves the problem that when processing polyurethane with the pressing device, users usually need to place the raw material on the surface of the metal table first. However, during the sealing and lifting of the raw material, deviations are easy to occur, affecting the subsequent pressing effect. At the same time, it is also difficult to ensure the accurate position of the mold when placing and setting it, which further affects the pressing accuracy.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A polyurethane pressing device includes a workbench with a metal platform movably mounted inside. A support frame is mounted on one end of the upper surface of the workbench, and a connecting plate is movably mounted on the lower end of the support frame. A sealing barrel is mounted on the lower end of the connecting plate, and the sealing barrel is parallel to the metal platform vertically. An auxiliary mechanism is installed inside the sealing barrel, and a vacuum suction tube is inserted through the front end of the sealing barrel and connected to an external vacuum machine. A hydraulic cylinder is mounted on the upper end of the support frame, and the output end of the hydraulic cylinder movably passes through the interior of the support frame and is connected to the connecting plate. A lead screw is movably mounted through the middle of the interior of the workbench, and the shaft of the lead screw is threaded through the interior of the metal platform. A motor is mounted on one end of the workbench, and the output end of the motor is connected to the lead screw.

[0006] Preferably, guide rods are installed at the front and rear ends of the workbench, and the rods of the guide rods are movably installed inside the metal table. A telescopic dust cover is installed between the side of the metal table away from the support frame and the workbench.

[0007] Preferably, the auxiliary mechanism includes a pressure plate, which is movably installed inside the sealing barrel. A second hydraulic cylinder is installed at the upper end of the inside of the sealing barrel, and the output end of the second hydraulic cylinder is connected to the pressure plate.

[0008] Preferably, extension plates are installed at both ends of the lower surface of the pressure plate, and electric push rods are installed at the inner and close ends of the extension plates. Clamping plates are installed at the output ends of the electric push rods, and the clamping plates are parallel to each other.

[0009] Preferably, a number of movable rods are movably installed through the lower part of the sealed barrel. Each movable rod has a push plate installed at one end inside the sealed barrel, and the other end of the movable rod on the outside of the sealed barrel is spherical.

[0010] Preferably, springs are fitted onto the rods of the movable rods located outside the sealed barrel, and a ring frame is fitted onto the outer side of the sealed barrel. Inclined frames are installed at the lower ends of the ring frames, and the inclined frames correspond to the movable rods and are in contact with them. A second electric push rod is installed on the rear side of the upper surface of the connecting plate. The lower end of the rod of the second electric push rod moves through the interior of the connecting plate and is connected to the ring frame.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] (1) In this utility model, after the user places the raw material on the surface of the metal platform, the No. 1 hydraulic cylinder will push the sealing barrel and the surface of the metal platform to fit together. Then the No. 2 electric push rod can push the ring frame to move down, so that the ring frame and the tilting frame can push the movable rod to move inward. This allows the movable rod and the push plate to push the raw material to the center. After the user places the mold on the surface of the metal platform, the movable rod and the push plate can be used again to make the metal platform to the center. This makes the raw material more accurate during the pressing process. At the same time, during the pressing process, the vacuum machine will extract the gas inside the sealing barrel to assist in the pressing of the raw material and avoid the generation of air bubbles between the raw material and the mold. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a polyurethane pressing device according to the present invention;

[0014] Figure 2 This is a front view structural diagram of a polyurethane pressing device according to the present invention;

[0015] Figure 3 This is a side view of a polyurethane pressing device according to the present invention.

[0016] Figure 4 This utility model relates to a polyurethane pressing device. Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0017] Figure 5 This utility model relates to a polyurethane pressing device. Figure 3 Schematic diagram of the cross-sectional structure at point BB;

[0018] Figure 6 This utility model relates to a polyurethane pressing device. Figure 5 Enlarged structural diagram at point C.

[0019] In the diagram: 1. Workbench; 2. Metal table; 3. Support frame; 4. Hydraulic cylinder No. 1; 5. Connecting plate; 6. Auxiliary mechanism; 601. Hydraulic cylinder No. 2; 602. Pressure plate; 603. Extension plate; 604. Electric push rod No. 1; 605. Clamping plate; 606. Ring frame; 607. Inclined frame; 608. Movable rod; 609. Spring; 610. Push plate; 611. Electric push rod No. 2; 7. Sealing barrel; 8. Lead screw; 9. Guide rod; 10. Motor; 11. Vacuum suction tube; 12. Telescopic dust cover. Detailed Implementation

[0020] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0021] like Figures 1 to 6 As shown in the figure, this utility model embodiment proposes a polyurethane pressing device, including a workbench 1, a metal platform 2 movably installed inside the workbench 1, a support frame 3 installed at one end of the upper surface of the workbench 1, a connecting plate 5 movably installed at the lower end of the support frame 3, a sealing barrel 7 installed at the lower end of the connecting plate 5, the sealing barrel 7 and the metal platform 2 being parallel vertically, an auxiliary mechanism 6 installed inside the sealing barrel 7, a vacuum suction tube 11 penetrating through the front end of the sealing barrel 7, the vacuum suction tube 11 being connected to an external vacuum machine, a first hydraulic cylinder 4 installed at the upper end of the support frame 3, the output end of the first hydraulic cylinder 4 movably penetrating through the interior of the support frame 3 and connected to the connecting plate 5, a lead screw 8 movably penetrating through the middle of the interior of the workbench 1, the body of the lead screw 8 being threaded through and installed inside the metal platform 2, a motor 10 installed at one end of the workbench 1, the output end of the motor 10 being connected to the lead screw 8.

[0022] like Figures 4 to 6As shown, in another embodiment of this utility model, guide rods 9 are respectively installed at the front and rear ends of the workbench 1. The rods of the guide rods 9 are respectively movably installed inside the metal platform 2. A telescopic dust cover 12 is installed between the side of the metal platform 2 away from the support frame 3 and the workbench 1. The auxiliary mechanism 6 includes a pressure plate 602, which is movably installed inside the sealing barrel 7. A second hydraulic cylinder 601 is installed at the upper end of the sealing barrel 7. The output end of the second hydraulic cylinder 601 is connected to the pressure plate 602. Extension plates 603 are respectively installed at both ends of the lower surface of the pressure plate 602. A first electric push rod 604 is respectively installed inside the extension plates 603 and at their close ends. A clamping plate 605 is respectively installed at the output end of the first electric push rod 604. The components are parallel to each other. Several movable rods 608 are movably installed through the lower end of the interior of the sealed barrel 7. Push plates 610 are installed at the ends of the movable rods 608 inside the sealed barrel 7, and the ends of the movable rods 608 outside the sealed barrel 7 are spherical. Springs 609 are sleeved on the rods of the movable rods 608 outside the sealed barrel 7. A ring frame 606 is sleeved on the outside of the sealed barrel 7. Inclined frames 607 are installed at the lower ends of the ring frame 606. The inclined frames 607 correspond to the movable rods 608 and are in contact with the movable rods 608. A second electric push rod 611 is installed on the rear side of the upper surface of the connecting plate 5. The lower end of the rod of the second electric push rod 611 movably passes through the interior of the connecting plate 5 and is connected to the ring frame 606.

[0023] The user places the raw material on the surface of the metal platform 2. Then, the motor 10 controls the lead screw 8 to rotate, which in turn moves the raw material to the lower end of the sealed barrel 7 via the threaded control of the metal platform 2. Then, the first hydraulic cylinder 4 pushes the connecting plate 5 and the sealed barrel 7 downwards, bringing the sealed barrel 7 into contact with the metal platform 2. At this point, the raw material is inside the sealed barrel 7. Then, the second electric push rod 611 pushes the ring frame 606 downwards, causing the ring frame 606 to work with the tilting frame 607 to push the movable rod 608 inwards. Simultaneously, the movable rod 608 compresses the spring 609, thus causing the movable rod 608 to cooperate with the push... Plate 610 pushes the raw material to the center, then the second electric push rod 611 resets, and spring 609 also pushes movable rod 608 to reset. Then, hydraulic cylinder 601 pushes pressure plate 602 downward. After moving to the designated position, electric push rod 604 pushes clamping plate 605 to clamp the raw material. After the raw material is clamped, hydraulic cylinder 601 pulls pressure plate 602 and raw material upward. At the same time, hydraulic cylinder 4 pulls sealing barrel 7 to reset. Then, motor 10 controls lead screw 8 to reverse, allowing lead screw 8 to control metal table 2 to move to the user's position. Next to the user, the mold is placed on the surface of the metal platform 2. After the mold is placed, the motor 10 controls the lead screw 8 to rotate, so that the lead screw 8 can control the metal platform 2 to move the mold to the lower end of the sealing barrel 7. Then, the first hydraulic cylinder 4 pushes the connecting plate 5 and the sealing barrel 7 to move down, so that the sealing barrel 7 and the metal platform 2 are in contact. At this time, the mold is also located inside the sealing barrel 7. Then, the second electric push rod 611 can push the ring frame 606 to move down, so that the ring frame 606, together with the tilting frame 607, pushes the movable rod 608 to move inward. At the same time, the movable rod 608 will push the spring 60 9. Extrusion is performed, causing the movable rod 608 to work with the push plate 610 to push the mold to the center. Then, the second hydraulic cylinder 601 pushes the pressure plate 602 downward, while the first electric push rod 604 slowly releases the material, allowing it to be placed at the top of the mold. The user then starts the vacuum machine, which uses the vacuum suction pipe 11 to expel the air from inside the sealed barrel 7. After the air is expelled, the second hydraulic cylinder 601 continues to push the pressure plate 602 downward, allowing the pressure plate 602 to push the material into the mold, completing the pressing process and improving the accuracy and stability of the material during the overall pressing process.

[0024] The vacuum machine is used to expel the air inside the sealed barrel 7, thereby preventing air bubbles from forming between the raw material and the mold during the pressing process and improving the pressing effect of the raw material.

[0025] The working principle of this polyurethane compression equipment:

[0026] In use, the user first places the raw material on the surface of the metal platform 2. Then, the motor 10 controls the lead screw 8 to rotate, which in turn moves the raw material to the lower end of the sealed barrel 7 via the threaded control of the metal platform 2. Then, the first hydraulic cylinder 4 pushes the connecting plate 5 and the sealed barrel 7 downwards, bringing the sealed barrel 7 into contact with the metal platform 2. At this point, the raw material is inside the sealed barrel 7. Then, the second electric push rod 611 pushes the ring frame 606 downwards, causing the ring frame 606 to work with the tilting frame 607 to push the movable rod 608 inwards. Simultaneously, the movable rod 608 compresses the spring 609, thereby... The movable rod 608, in conjunction with the push plate 610, pushes the raw material to the center position. Then, the second electric push rod 611 resets, and simultaneously, the spring 609 pushes the movable rod 608 to reset. Then, the second hydraulic cylinder 601 pushes the pressure plate 602 downwards. After moving to the designated position, the first electric push rod 604 pushes the clamping plate 605 to clamp the raw material. After the raw material is clamped, the second hydraulic cylinder 601 pulls the pressure plate 602 and the raw material upwards. Simultaneously, the first hydraulic cylinder 4 pulls the sealing barrel 7 to reset. Then, the motor 10 controls the lead screw 8 to reverse, causing the lead screw 8 to... The metal platform 2 is then moved to the user's side. The user then places the mold on the surface of the metal platform 2. After the mold is placed, the motor 10 controls the lead screw 8 to rotate, which in turn moves the metal platform 2 and the mold to the lower end of the sealing barrel 7. Then, the first hydraulic cylinder 4 pushes the connecting plate 5 and the sealing barrel 7 downwards, bringing the sealing barrel 7 into contact with the metal platform 2. At this point, the mold is also located inside the sealing barrel 7. Then, the second electric push rod 611 pushes the ring frame 606 downwards, allowing the ring frame 606 to work with the tilting frame 607 to push the movable rod 608 inwards. As the mold moves, the movable rod 608 compresses the spring 609, causing the movable rod 608 to work with the push plate 610 to push the mold to the center. Then, the second hydraulic cylinder 601 pushes the pressure plate 602 downward, while the first electric push rod 604 slowly releases the raw material, placing it at the top of the mold. The user then starts the vacuum machine, which uses the vacuum suction pipe 11 to expel the air from inside the sealed container 7. After the air is expelled, the second hydraulic cylinder 601 continues to push the pressure plate 602 downward, causing it to push the raw material into the mold, completing the pressing process.

[0027] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. A polyurethane pressing device, comprising a workbench (1), characterized in that: A metal platform (2) is movably installed inside the workbench (1). A support frame (3) is installed at one end of the upper surface of the workbench (1). A connecting plate (5) is movably installed at the lower end of the support frame (3). A sealing barrel (7) is installed at the lower end of the connecting plate (5). The sealing barrel (7) and the metal platform (2) are parallel vertically. An auxiliary mechanism (6) is installed inside the sealing barrel (7). A vacuum suction tube (11) is installed through the front end of the sealing barrel (7). Connected to an external vacuum machine, the upper end of the support frame (3) is equipped with a hydraulic cylinder (4). The output end of the hydraulic cylinder (4) moves through the interior of the support frame (3) and is connected to the connecting plate (5). A lead screw (8) is moved through the middle of the interior of the worktable (1). The body of the lead screw (8) is threaded through the interior of the metal table (2). A motor (10) is installed at one end of the worktable (1). The output end of the motor (10) is connected to the lead screw (8).

2. The polyurethane pressing equipment according to claim 1, characterized in that: Guide rods (9) are installed at the front and rear ends of the workbench (1). The rods of the guide rods (9) are movably installed inside the metal table (2). A telescopic dust cover (12) is installed between the side of the metal table (2) away from the support frame (3) and the workbench (1).

3. The polyurethane pressing equipment according to claim 1, characterized in that: The auxiliary mechanism (6) includes a pressure plate (602), which is movably installed inside the sealing barrel (7). A second hydraulic cylinder (601) is installed at the upper end of the inside of the sealing barrel (7), and the output end of the second hydraulic cylinder (601) is connected to the pressure plate (602).

4. A polyurethane pressing device according to claim 3, characterized in that: Extension plates (603) are respectively installed at both ends of the lower surface of the pressure plate (602). A first electric push rod (604) is respectively installed inside the extension plate (603) and at one end close to each other. A clamping plate (605) is respectively installed at the output end of the first electric push rod (604). The clamping plates (605) are parallel to each other.

5. A polyurethane pressing device according to claim 4, characterized in that: Several movable rods (608) are movably installed through the lower end of the sealed barrel (7). A push plate (610) is installed at one end of each movable rod (608) inside the sealed barrel (7), and the other end of each movable rod (608) outside the sealed barrel (7) is spherical.

6. A polyurethane pressing device according to claim 5, characterized in that: The movable rod (608) is fitted with springs (609) on its outer side of the sealed barrel (7). A ring frame (606) is fitted on the outer side of the sealed barrel (7). An inclined frame (607) is installed at the lower end of the ring frame (606). The inclined frame (607) corresponds to the movable rod (608) and is in contact with the movable rod (608). A second electric push rod (611) is installed on the rear side of the upper surface of the connecting plate (5). The lower end of the rod of the second electric push rod (611) moves through the interior of the connecting plate (5) and is connected to the ring frame (606).