A casting type polyurethane seal molding die

Abstract

This utility model discloses a casting-type polyurethane sealant molding die, including a die assembly, a pushing device, a shearing device, and a lifting device. The pushing device is connected to a part of the die assembly and can move that part of the die assembly to allow the die assembly to close or release. The shearing device is located on one side of the die assembly. One end of the lifting device is connected to the die assembly and can move one end of the die assembly up and down. This utility model can be used to mold polyurethane sealants of a set length.

Description

Technical Field

[0001] This utility model relates to a molding die, and more particularly to a casting-type polyurethane seal molding die. Background Technology

[0002] Polyurethane has good durability and sealing effect. When sealing is required, polyurethane is usually used to make gaskets. Polyurethane gaskets can effectively prevent leakage and protect the safety of equipment and the environment. Polyurethane molding is a common molding method for polyurethane gaskets. Usually, manufacturers use molding to make larger gaskets. In the process of casting and molding large polyurethane gaskets, manufacturers often encounter the following problems: polyurethane gaskets cannot be molded into a whole, the amount of polyurethane material for one molding is limited, and it is not possible to mold gaskets of a set length as needed. Utility Model Content

[0003] The purpose of this invention is to provide a casting-type polyurethane sealant molding die to solve the problems existing in the prior art.

[0004] According to one aspect of the present invention, a casting-type polyurethane sealant molding die is provided, comprising a die assembly, a pushing device, a shearing device, and a lifting device. The pushing device is connected to a part of the die assembly and can push the part of the die assembly to move so that the die assembly can close or release the die. The shearing device is located on one side of the die assembly. One end of the lifting device is connected to the die assembly and can drive one end of the die assembly to rise or fall.

[0005] In some embodiments, the mold assembly includes a base plate, a base, and a movable seat. The base is disposed on the base plate, and the movable seat is connected to a pushing device that can push the movable seat close to the base for mold closing or demolding. A casting cavity is formed between the base and the movable seat.

[0006] In some implementations, a fixing block is also provided on the base plate, and the base is connected to the fixing block.

[0007] In some embodiments, a slide rail is provided on the base plate, the movable seat is connected to the slide rail, and the pushing device drives the movable seat to move.

[0008] In some embodiments, the movable seat is provided with a groove that engages with a slide rail so that the movable seat can move along the slide rail.

[0009] In some embodiments, the pushing device includes a fixed base and a pushing cylinder, the pushing cylinder being mounted on the fixed base and the output end of the pushing cylinder being connected to a movable base.

[0010] In some embodiments, the lifting device is a lifting cylinder, which is connected to one end of the base plate.

[0011] In some embodiments, the shearing device includes a shearing frame, a shearing cylinder, and a shearing blade. The shearing frame is located on one side of the mold assembly, and the shearing cylinder is located on the shearing frame. The output end of the shearing cylinder passes through the upper end of the shearing frame and is connected to the shearing blade. The shearing blade can move up and down along the shearing frame.

[0012] The beneficial effects of this utility model are as follows: In this utility model, the pushing device can push a part of the mold assembly to complete the mold closing, and put the polyurethane material to be poured into the mold assembly. After completion, the lifting device lifts one end of the mold assembly, so that the polyurethane material is completely and tightly formed together under the action of gravity. Then, the polyurethane at the head can be cut off by the shearing device (because the polyurethane at the head has a poor molding effect, so it needs to be cut off). Then, a part of the formed polyurethane is pulled out, and the remaining part is left in the mold assembly. Then, the polyurethane material to be poured is put into the mold assembly. The newly added polyurethane material can be formed together with the polyurethane that has been formed in the mold assembly, increasing the overall length of the polyurethane seal. Then, the above operation can be continued until the polyurethane seal is formed to the specified length. Therefore, this utility model can form a polyurethane seal of a set length. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a casting-type polyurethane sealing mold according to one embodiment of the present invention;

[0014] Figure 2 for Figure 1 A schematic diagram of the slide rail and movable seat in the mold for casting polyurethane sealant.

[0015] Figure 3 for Figure 1 The diagram shows the structure of the movable seat in the casting mold for polyurethane seals.

[0016] In the figure, 1-mold assembly; 11-base plate; 111-fixed block; 112-slide rail; 12-base; 13-moving seat; 131-groove; 2-pushing device; 21-fixed seat; 22-pushing cylinder; 3-shearing device; 31-shearing frame; 32-shearing cylinder; 33-shearing blade; 4-lifting device. Detailed Implementation

[0017] 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.

[0018] Figures 1-3 The diagram schematically illustrates the structure of a casting-type polyurethane seal molding die according to one embodiment of the present invention.

[0019] like Figures 1-3 As shown, a casting-type polyurethane seal molding die includes a mold assembly 1, a pushing device 2, a shearing device 3, and a lifting device 4.

[0020] like Figure 1 As shown, the pushing device 2 can be connected to a part of the mold assembly 1. The pushing device 2 can push a part of the mold assembly 1 to move, so that the mold assembly 1 can be closed or demolded. Therefore, the molding operation of polyurethane material can be completed by the pushing device 2 in this utility model. The shearing device 3 can be fixedly installed on the rear side of the mold assembly 1. The lifting device 4 is connected to the front end of the mold assembly 1. When the lifting device 4 is started, the lifting device 4 can drive the front end of the mold assembly 1 to rise and fall. The rear end of the mold assembly 1 can be installed on the frame, and the rear end of the mold assembly 1 can be rotatably connected to the frame. For example, when the polyurethane raw material is poured into the mold assembly 1, the lifting device 4 can drive the front end of the mold assembly 1 to rise (the rear end of the mold assembly 1 rotates, but does not rise or fall). Under the action of gravity, the polyurethane raw material flows to the rear end of the mold assembly 1 (which can seal the rear end of the mold assembly 1). After the polyurethane raw material cools down, the one-piece molding operation is completed. After the molding is completed, the lifting device 4 drives the front end of the mold assembly 1 to fall.

[0021] In this embodiment, a flow channel can be provided in the mold assembly 1, through which a refrigerant can flow. Since polyurethane raw material can flow at high temperatures, when the polyurethane raw material is added to the casting cavity of the mold assembly 1, the refrigerant can accelerate the cooling of the polyurethane raw material. After the polyurethane raw material cools to a certain temperature, it will become solid, thus completing the production of the polyurethane seal.

[0022] like Figure 1 and Figure 2As shown, the specific structure of mold assembly 1 in this embodiment is as follows: mold assembly 1 includes a base plate 11, a base 12, and a movable seat 13. The base 12 can be fixedly installed on the base plate 11 (the base 12 is installed on the right side of the base plate 11 and can be fixed by welding). The movable seat 13 is connected to the pushing device 2. The pushing device 2 can push the movable seat 13 closer to the base 12 for mold closing, or push the movable seat 13 away from the base 12 for demolding. A casting cavity is formed between the base 12 and the movable seat 13. Polyurethane raw material can be poured into the casting cavity. After the polyurethane raw material cools, the molding operation can be completed.

[0023] like Figure 1 As shown, in this embodiment, a fixing block 111 can also be provided on the base plate 11, and the base 12 is connected to the fixing block 111. The fixing block 111 can reinforce the base plate 11 and prevent the base plate 11 from being damaged due to excessive force. The fixing block 111 can be welded to the base plate 11, or the fixing block 111 can be fixed to the base plate 11 with bolts.

[0024] like Figure 1 and Figure 2 As shown, in this embodiment, a slide rail 112 is integrally formed on the base plate 11, and the movable seat 13 is connected to the slide rail 112. When the pushing device 2 is activated, the pushing device 2 can drive the movable seat 13 to move left and right. During the movement of the movable seat 13, the movable seat 13 can move closer to or further away from the base 12 to perform mold closing or demolding.

[0025] Specifically, such as Figure 2 and Figure 3 As shown, the movable seat 13 in this embodiment has an integrally formed groove 131. The groove 131 can be locked on the slide rail 112 so that the movable seat 13 can move along the slide rail 112. By setting the groove 131 on the movable seat 13, the movable seat 13 can move along the slide rail 112. The slide rail 112 plays the role of positioning and guiding the movable seat 13.

[0026] The specific structure of the pushing device 2 is as follows: The pushing device 2 includes a fixed base 21 and a pushing cylinder 22. The fixed base 21 is installed on the right side of the base plate 11. The pushing cylinder 22 can be fixedly installed on the fixed base 21. The output end of the pushing cylinder 22 is connected to the movable base 13. When the pushing cylinder 22 is started, the pushing cylinder 22 can drive the movable base 13 to move through the output end. When the movable base 13 is close to the base 12, the mold closing is completed. Conversely, when the movable base 13 is far away from the base 12, the demolding is completed.

[0027] The specific structure of the lifting device 4 is as follows: The lifting device 4 is a lifting cylinder, which is connected to the front end of the base plate 11. The rear end of the base plate 11 can be mounted on the frame, and the rear end of the base plate 11 can be rotatably connected to the frame. When the lifting cylinder is started, the lifting cylinder can push the front end of the base plate 11 upward or pull the front end of the base plate 11 downward to rotate.

[0028] The specific structure of the shearing device 3 is as follows: The shearing device 3 includes a shearing frame 31, a shearing cylinder 32, and a shearing blade 33. The shearing frame 31 is fixedly installed on the rear side of the mold assembly 1. The shearing cylinder 32 is installed on the shearing frame 31. The output end of the shearing cylinder 32 passes through the upper end of the shearing frame 31 and is connected to the shearing blade 33. The shearing blade 33 can move up and down along the shearing frame 31. When the shearing cylinder 32 is started, the shearing cylinder 32 can drive the shearing blade 33 to move up and down. During the up and down movement, the shearing blade 33 can complete the cutting.

[0029] In this invention, the pushing device 2 can push a portion of the mold assembly 1 to complete the mold closing, and the polyurethane material to be poured is placed into the mold assembly 1. After completion, the lifting device 4 lifts one end of the mold assembly 1, so that the polyurethane material is completely and tightly formed together under the action of gravity. Then, the polyurethane at the head can be cut off by the shearing device 3 (because the polyurethane at the head has a poor molding effect, so it needs to be cut off). Then, a portion of the formed polyurethane is pulled out, and the remaining portion remains in the mold assembly 1. Then, the polyurethane material to be poured is placed into the mold assembly 1. The newly added polyurethane material can be formed together with the polyurethane that was previously formed in the mold assembly 1, thereby increasing the overall length of the polyurethane seal. Then, the above operation can be continued until the polyurethane seal is formed to the specified length.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] This utility model is not limited to the above-mentioned optional embodiments. Anyone can derive other forms of products under the guidance of this utility model. However, regardless of any changes made in its shape or structure, any technical solution that falls within the scope of the claims of this utility model shall be protected by this utility model.

Claims

1. A casting-type polyurethane sealant molding die, characterized in that: The device includes a mold assembly (1), a pushing device (2), a shearing device (3), and a lifting device (4). The pushing device (2) is connected to a part of the mold assembly (1) and can push a part of the mold assembly (1) to move so that the mold assembly (1) can close or release the mold. The shearing device (3) is located on one side of the mold assembly (1). One end of the lifting device (4) is connected to the mold assembly (1) and can drive one end of the mold assembly (1) to rise or fall.

2. The casting-type polyurethane seal molding die according to claim 1, characterized in that: The mold assembly (1) includes a base plate (11), a base (12) and a movable seat (13). The base (12) is disposed on the base plate (11). The movable seat (13) is connected to the pushing device (2). The pushing device (2) can push the movable seat (13) close to the base (12) for mold closing or demolding. A casting cavity is formed between the base (12) and the movable seat (13).

3. The casting-type polyurethane seal molding die according to claim 2, characterized in that: A fixing block (111) is also provided on the base plate (11), and the base (12) is connected to the fixing block (111).

4. The casting-type polyurethane seal molding die according to claim 3, characterized in that: The base plate (11) is provided with a slide rail (112), the movable seat (13) is connected to the slide rail (112), and the pushing device (2) drives the movable seat (13) to move.

5. The casting-type polyurethane seal molding die according to claim 4, characterized in that: The movable seat (13) is provided with a groove (131), which is engaged on the slide rail (112) so that the movable seat (13) can move along the slide rail (112).

6. The casting-type polyurethane seal molding die according to claim 5, characterized in that: The pushing device (2) includes a fixed base (21) and a pushing cylinder (22). The pushing cylinder (22) is mounted on the fixed base (21), and the output end of the pushing cylinder (22) is connected to the movable base (13).

7. The casting-type polyurethane sealant molding die according to any one of claims 2 to 6, characterized in that: The lifting device (4) is a lifting cylinder, which is connected to one end of the base plate (11).

8. The casting-type polyurethane seal molding die according to claim 7, characterized in that: The shearing device (3) includes a shearing frame (31), a shearing cylinder (32), and a shearing blade (33). The shearing frame (31) is located on one side of the mold assembly (1). The shearing cylinder (32) is located on the shearing frame (31). The output end of the shearing cylinder (32) passes through the upper end of the shearing frame (31) and is connected to the shearing blade (33). The shearing blade (33) can move up and down along the shearing frame (31).

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