Plastic U-shaped gasket injection mold convenient for batch production

Abstract

The utility model discloses a plastic U-shaped gasket injection mold convenient for batch production, and relates to the technical field of injection molds. The device comprises a forming assembly, a cooling assembly and a limiting assembly are connected into the forming assembly in a sliding mode, a rotating assembly is arranged on the outer surface of the cooling assembly, an anti-loosening assembly is arranged on the outer surface of the forming assembly, the rotating assembly is used for driving the cooling assembly to rotate, and the limiting assembly is used for fixing the cooling assembly. Through connection of the cooling assembly and the rotating assembly, the rotating assembly can drive the cooling assembly to rotate by a certain angle, so that the cooling assembly is temporarily separated from the forming assembly, the rotating assembly is loosened until an inner cavity of the forming assembly is completely filled with plastic raw materials, and the cooling assembly is attached to the forming assembly; cooling of plastic raw materials in the forming assembly is accelerated, the working efficiency is improved, separation and combination of the cooling assembly and the forming assembly can be controlled by workers, and use is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molds, and in particular relates to a plastic U-shaped gasket injection mold which is convenient for batch production. Background Art

[0002] An injection mold is a tool for producing plastic products. It is also a tool that gives plastic products a complete structure and precise dimensions. Injection molding is a processing method used in mass production of certain parts with complex shapes. Specifically, it refers to the process of injecting heated and melted plastic into the mold cavity under high pressure by an injection molding machine, and obtaining a molded product after cooling and solidification.

[0003] A rapid prototyping plastic injection mold is disclosed in Chinese patent CN215550546U, which belongs to the technical field of injection molds. The rapid prototyping plastic injection mold comprises an upper mold top plate and a lower mold bottom plate, wherein the bottom of the upper mold top plate is fixedly connected to an upper mold base, and the top of the lower mold bottom plate is fixedly connected to a lower mold base, and rectangular grooves are provided on both the front and rear sides of the upper mold base, and two cooling channels are arranged inside the upper mold base, and a first rectangular block and a second rectangular block are respectively arranged inside the two rectangular grooves, and a U-shaped cooling pipe is arranged inside the second rectangular block, and two front and rear connecting holes are arranged inside the first rectangular block, and two pipe connectors are rotatably connected to the front of the first rectangular block, and the first rectangular block and the second rectangular block are fixedly connected to a mounting plate on the side away from the upper mold base, and the mounting plate is connected to the upper mold base by bolts.

[0004] In order to speed up the plastic molding speed, a cooling device needs to be installed inside the mold to speed up the cooling and molding speed of the product. However, the existing cooling device is installed inside the mold, which makes it inconvenient to disassemble and remove the cooling device, and thus it is inconvenient to clean the cooling device. As a result, the cooling device is prone to scale on the inner wall after long-term use, which in turn affects the cooling effect and reduces the molding efficiency. In the above document, the U-shaped cooling pipe can be separated from the first rectangular block by removing the pipe connector from the U-shaped cooling pipe. However, the U-shaped cooling pipe used for cooling is always in contact with the upper mold base. After the plastic raw material enters the upper mold base and the lower mold base, it cools too quickly, which easily affects the subsequent injection of the plastic raw material and is inconvenient to use.

[0005] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0006] In view of the problems in the related art, the utility model proposes a plastic U-shaped gasket injection mold that is easy to mass produce to overcome the above technical problems existing in the existing related art.

[0007] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0008] The utility model is a plastic U-shaped gasket injection mold that is convenient for mass production, comprising a molding component, wherein a cooling component and a limiting component are slidably connected inside the molding component, a rotating component is provided on the outer surface of the cooling component, and an anti-loosening component is provided on the outer surface of the molding component, wherein the rotating component is used to drive the cooling component to rotate, the limiting component is used to fix the cooling component, and the anti-loosening component is used to fix the molding component.

[0009] Furthermore, the molding assembly includes an upper connecting plate and a lower connecting plate, the bottom of the upper connecting plate is fixedly connected to an upper seat, the bottom of the upper seat is fixedly connected to a first mold and a guide column, the top of the lower connecting plate is fixedly connected to a lower seat, the top of the lower seat is provided with a second mold and a guide hole, the guide column is used to be plugged into the guide hole, and the first mold is used to be molded with the second mold.

[0010] Furthermore, the cooling assembly includes a sliding plate, which is slidably connected to the lower seat, the sliding plate is rotatably connected to a square plate inside, the top of the square plate is fixedly connected to a cooling pipe, the outer surface of the sliding plate is respectively provided with through holes and slots, and the cooling pipe is plugged into the through holes.

[0011] Furthermore, the rotating assembly includes a pin shaft, which is fixedly connected to the side of the square plate, and a pin hole is opened on the outer surface of the sliding plate. The pin shaft is rotatably connected to the pin hole, and a first spring and a shift plate are fixedly connected to the bottom of the square plate, the first spring is fixedly connected to the sliding plate, and the shift plate is slidably connected to the through hole.

[0012] Furthermore, the limiting assembly includes a second spring, which is fixedly connected to the inside of the lower seat, and the end of the second spring is fixedly connected to a clamping rod, which is plugged into a clamping slot, and the outer surface of the clamping rod is fixedly connected to a push block, and both the clamping rod and the push block are slidably connected to the lower seat.

[0013] Furthermore, the anti-loosening assembly includes a fixed rod and a rotating rod, the fixed rod is fixedly connected to the side of the upper seat, the rotating rod is rotatably connected to the lower seat, one end of the rotating rod is fixedly connected to a rotating plate, the other end of the rotating rod is fixedly connected to a third spring, a circular hole is opened on the outer surface of the rotating plate, the fixed rod is inserted into the inside of the circular hole, the end of the third spring is fixedly connected to a circular plate, and the circular plate is rotatably connected to the inside of the lower seat.

[0014] Furthermore, a positioning ring is fixedly connected to the top of the upper connecting plate, and a connecting hole is opened on the top of the upper connecting plate.

[0015] The utility model has the following beneficial effects:

[0016] 1. The utility model connects the cooling component and the rotating component. The rotating component can drive the cooling component to rotate a certain angle, so that the cooling component is temporarily separated from the molding component until the plastic raw material completely fills the inner cavity of the molding component. Then, the rotating component is released to make the cooling component fit with the molding component, thereby accelerating the cooling of the plastic raw material in the molding component and improving work efficiency. The separation and combination of the cooling component and the molding component can be controlled by the staff, which is more convenient to use.

[0017] 2. The utility model pushes the paddle plate to drive the square plate to rotate around the pin shaft through the connection between the square plate and the pin shaft, and the cooling tube on the square plate is separated from the bottom of the second mold, and the first spring at the bottom of the square plate is compressed. At this time, plastic raw materials can be injected between the second mold and the first mold. After the injection is completed, the paddle plate is released, and the first spring drives the square plate and the cooling tube to reset, and the cooling tube contacts the bottom of the second mold. When in use, the staff can control the separation of the cooling tube and the second mold by themselves to avoid the situation where the injected plastic raw materials cool too quickly and affect the subsequent feeding.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the utility model embodiments, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the external contour structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the upper seat structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the lower seat structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the cross-sectional structure of the lower seat of the utility model;

[0024] Figure 5 It is an exploded schematic diagram of the sliding plate and the square plate of the utility model;

[0025] Figure 6 For the utility model Figure 4 A schematic diagram of the structure enlargement in the middle;

[0026] Figure 7For the utility model Figure 4 Enlarged schematic diagram of the structure at point B in the middle.

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0028] 1. Molding component; 101. Upper connecting plate; 102. Upper seat; 103. First mold; 104. Guide column; 105. Lower connecting plate; 106. Lower seat; 107. Second mold; 108. Guide hole; 2. Cooling component; 201. Sliding plate; 202. Square plate; 203. Cooling pipe; 204. Through hole; 205. Slot; 3. Rotating component; 301. Pin shaft; 302. Pin hole; 303. First spring; 304. Dial plate; 4. Limiting component; 401. Second spring; 402. Clamping rod; 403. Push block; 5. Anti-loosening component; 501. Fixed rod; 502. Rotating rod; 503. Rotating plate; 504. Round hole; 505. Third spring; 506. Round plate; 6. Positioning ring; 7. Connecting hole. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the utility model embodiments to clearly and completely describe the technical solutions in the utility model embodiments. Obviously, the described embodiments are only part of the utility model embodiments, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In the description of the present utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0031] See also Figure 1-Figure 7 As shown, the utility model is a plastic U-shaped gasket injection mold that is easy to mass produce, including a molding component 1, the molding component 1 is internally slidably connected with a cooling component 2 and a limiting component 4, the outer surface of the cooling component 2 is provided with a rotating component 3, the outer surface of the molding component 1 is provided with an anti-loosening component 5, the rotating component 3 is used to drive the cooling component 2 to rotate, the limiting component 4 is used to fix the cooling component 2, and the anti-loosening component 5 is used to fix the molding component 1.

[0032] Both ends of the cooling component 2 are connected to the coolant circulation equipment so that the coolant in the cooling component 2 can circulate. First, push the rotating component 3 to drive the cooling component 2 to rotate, so that the cooling component 2 is separated from the molding component 1. At this time, the plastic raw material is injected into the molding component 1. After the injection is completed, the rotating plastic part 3 is released to reset the cooling component 2. The cooling component 2 cools the plastic raw material in the molding component 1 to accelerate its molding speed. After molding, the detachable anti-loosening component 5 can release the limit fixation of the molding component 1, and then the molding component 1 can be disassembled to remove the U-shaped gasket. When the cooling component 2 in the molding component 1 needs to be replaced, pull the limit component 4 to move it to release the limit fixation of the cooling component 2, and the cooling component 2 can be removed from the molding component 1.

[0033] The utility model connects the cooling component 2 and the rotating component 3. The rotating component 3 can drive the cooling component 2 to rotate a certain angle, so that the cooling component 2 is temporarily separated from the molding component 1 until the plastic raw material completely fills the inner cavity of the molding component 1. Then, the rotating component 3 is released to make the cooling component 2 fit with the molding component 1, thereby accelerating the cooling of the plastic raw material in the molding component 1 and improving the working efficiency. The separation and combination of the cooling component 2 and the molding component 1 can be controlled by the staff, which is convenient to use.

[0034] In one embodiment, for the above-mentioned molding assembly 1, the molding assembly 1 includes an upper connecting plate 101 and a lower connecting plate 105, the bottom of the upper connecting plate 101 is fixedly connected to an upper seat 102, the bottom of the upper seat 102 is fixedly connected to a first mold 103 and a guide column 104, the top of the lower connecting plate 105 is fixedly connected to a lower seat 106, the top of the lower seat 106 is provided with a second mold 107 and a guide hole 108, the guide column 104 is used to be plugged into the guide hole 108, and the first mold 103 is used to be molded with the second mold 107.

[0035] The top of the upper connecting plate 101 is fixed to an electric push rod or other driving device, pushing the upper connecting plate 101 and the upper seat 102 close to the lower connecting plate 105, and the guide column 104 and the first mold 103 at the bottom of the upper seat 102 enter the guide hole 108 and the second mold 107 respectively to achieve the mold closing of the upper seat 102 and the lower seat 106. At this time, plastic raw materials can be injected into the second mold 107 and the first mold 103. Through the connection between the guide column 104 and the guide hole 108, the guide column 104 first enters the guide hole 108 on the lower seat 106 during the mold closing process, so that the upper seat 102 is aligned with the lower seat 106, avoiding offset between the first mold 103 on the upper seat 102 and the second mold 107 on the lower seat 106.

[0036] In one embodiment, for the above-mentioned cooling component 2, the cooling component 2 includes a sliding plate 201, the sliding plate 201 is slidably connected to the lower seat 106, the sliding plate 201 is internally rotatably connected to a square plate 202, the top of the square plate 202 is fixedly connected to a cooling pipe 203, and the outer surface of the sliding plate 201 is respectively provided with a through hole 204 and a slot 205, and the cooling pipe 203 is plugged into the through hole 204.

[0037] In one embodiment, for the above-mentioned rotating assembly 3, the rotating assembly 3 includes a pin shaft 301, the pin shaft 301 is fixedly connected to the side of the square plate 202, the outer surface of the sliding plate 201 is provided with a pin hole 302, the pin shaft 301 is rotatably connected to the pin hole 302, the bottom of the square plate 202 is fixedly connected with a first spring 303 and a dial plate 304, the first spring 303 is fixedly connected to the sliding plate 201, and the dial plate 304 is slidably connected to the through hole 204.

[0038] The front and rear ends of the cooling tube 203 are fixedly connected to the coolant circulation device, so that the coolant can flow in the cooling tube 203, pushing the paddle 304 to drive the square plate 202 and the cooling tube 203 to rotate, and the square plate 202 compresses the first spring 303, so that the cooling tube 203 is separated from the bottom of the second mold 107, and the plastic raw material can be injected into the second mold 107 at this time. After the injection is completed, the paddle 304 and the square plate 202 are released, and the first spring 303 drives the square plate 202 to rotate around the pin 301, and the square plate 202 drives the cooling tube 203 to reset, so that the cooling tube 203 fits with the bottom of the second mold 207, thereby cooling the plastic raw material inside.

[0039] In one embodiment, for the above-mentioned limit assembly 4, the limit assembly 4 includes a second spring 401, the second spring 401 is fixedly connected to the inside of the lower seat 106, the end of the second spring 401 is fixedly connected with a clamping rod 402, the clamping rod 402 is plugged into the clamping slot 205, the outer surface of the clamping rod 402 is fixedly connected with a push block 403, and the clamping rod 402 and the push block 403 are both slidably connected to the lower seat 106.

[0040] Pushing the push block 403 drives the card rod 402 to move, so that the card rod 402 is separated from the card slot 205 and compresses the second spring 401. At this time, the card rod 402 and the sliding plate 201 are no longer fixed, and the sliding plate 201 can be pulled to drive the cooling tube 203 to move, and the cooling tube 203 is taken out from the lower seat 106 for replacement. After the replacement is completed, the new cooling tube 203 and the sliding plate 201 are put back into the lower seat 106, and the push block 403 is released. The second spring 401 pushes the card rod 402 and the push block 403 to reset, and the card rod 402 is plugged into the card slot 205 to realize the limited fixation of the sliding plate 201.

[0041] In one embodiment, for the above-mentioned anti-loosening component 5, the anti-loosening component 5 includes a fixed rod 501 and a rotating rod 502, the fixed rod 501 is fixedly connected to the side of the upper seat 102, the rotating rod 502 is rotatably connected to the lower seat 106, one end of the rotating rod 502 is fixedly connected to a rotating plate 503, the other end of the rotating rod 502 is fixedly connected to a third spring 505, a circular hole 504 is opened on the outer surface of the rotating plate 503, the fixed rod 501 is inserted into the inside of the circular hole 504, the end of the third spring 505 is fixedly connected to a circular plate 506, and the circular plate 506 is rotatably connected to the inside of the lower seat 106.

[0042] Pull the rotating plate 503 to drive the rotating rod 502, the circular hole 504 on the rotating plate 503 is separated from the fixed rod 501, the rotating rod 502 stretches the third spring 505, and the rotating plate 503 and the rotating rod 502 are pushed to drive the circular plate 506 to rotate. At this time, the upper seat 102 and the lower seat 106 are no longer restricted by the fixed rod 501 and the rotating plate 503, and the upper seat 102 and the lower seat 106 can be separated.

[0043] In one embodiment, for the upper connecting plate 101 , a positioning ring 6 is fixedly connected to the top of the upper connecting plate 101 , and a connecting hole 7 is opened at the top of the upper connecting plate 101 .

[0044] The upper connecting plate 101 can be connected to an electric push rod or other driving device through the positioning ring 6 and the connecting hole 7, so that the upper connecting plate 101 can drive the upper seat 102 to move, thereby facilitating the separation of the upper seat 102 and the lower seat 106.

[0045] Through the above technical scheme, 1. through the connection between the cooling component 2 and the rotating component 3, the rotating component 3 can drive the cooling component 2 to rotate a certain angle, so that the cooling component 2 is temporarily separated from the molding component 1, until the plastic raw material completely fills the inner cavity of the molding component 1, and then the rotating component 3 is released, so that the cooling component 2 and the molding component 1 are fitted together, the cooling of the plastic raw material in the molding component 1 is accelerated, and the work efficiency is improved. The separation and combination of the cooling component 2 and the molding component 1 can be controlled by the staff, which is more convenient to use. 2. Through the connection between the square plate 202 and the pin shaft 301, the paddle plate 304 is pushed to drive the square plate 202 to rotate around the pin shaft 301, and the cooling tube 203 on the square plate 202 is separated from the bottom of the second mold 107. The first spring 303 at the bottom of the square plate 202 is compressed. At this time, the plastic raw material can be injected between the second mold 107 and the first mold 103. After the injection is completed, the paddle plate 304 is released, and the first spring 303 drives the square plate 202 and the cooling tube 203 to reset. The cooling tube 203 contacts the bottom of the second mold 107. During use, the staff can control the separation of the cooling tube 203 and the second mold 107 by themselves to avoid the situation where the injected plastic raw material cools too quickly and affects the subsequent feeding.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0047] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A plastic U-shaped gasket injection mold convenient for mass production, comprising a molding component (1), characterized in that: The molding component (1) is internally slidably connected with a cooling component (2) and a limiting component (4); the outer surface of the cooling component (2) is provided with a rotating component (3); the outer surface of the molding component (1) is provided with an anti-loosening component (5); the rotating component (3) is used to drive the cooling component (2) to rotate; the limiting component (4) is used to fix the cooling component (2); and the anti-loosening component (5) is used to fix the molding component (1).

2. A plastic U-shaped gasket injection mold that is convenient for mass production according to claim 1, characterized in that: The molding assembly (1) comprises an upper connecting plate (101) and a lower connecting plate (105); the bottom of the upper connecting plate (101) is fixedly connected to an upper seat (102); the bottom of the upper seat (102) is fixedly connected to a first mold (103) and a guide column (104); the top of the lower connecting plate (105) is fixedly connected to a lower seat (106); the top of the lower seat (106) is provided with a second mold (107) and a guide hole (108); the guide column (104) is used for plugging with the guide hole (108); and the first mold (103) is used for closing the mold with the second mold (107).

3. A plastic U-shaped gasket injection mold that is convenient for mass production according to claim 2, characterized in that: The cooling assembly (2) comprises a sliding plate (201), the sliding plate (201) is slidably connected to the lower seat (106), the interior of the sliding plate (201) is rotatably connected to a square plate (202), the top of the square plate (202) is fixedly connected to a cooling pipe (203), the outer surface of the sliding plate (201) is respectively provided with a through hole (204) and a slot (205), and the cooling pipe (203) is plugged into the through hole (204).

4. A plastic U-shaped gasket injection mold that is convenient for mass production according to claim 3, characterized in that: The rotating assembly (3) comprises a pin shaft (301), the pin shaft (301) is fixedly connected to the side of the square plate (202), the outer surface of the sliding plate (201) is provided with a pin hole (302), the pin shaft (301) is rotatably connected to the pin hole (302), the bottom of the square plate (202) is fixedly connected to a first spring (303) and a shifting plate (304), the first spring (303) is fixedly connected to the sliding plate (201), and the shifting plate (304) is slidably connected to the through hole (204).

5. A plastic U-shaped gasket injection mold convenient for mass production according to claim 4, characterized in that: The limiting assembly (4) comprises a second spring (401), the second spring (401) is fixedly connected to the inside of the lower seat (106), the end of the second spring (401) is fixedly connected to a clamping rod (402), the clamping rod (402) is plugged into the clamping groove (205), the outer surface of the clamping rod (402) is fixedly connected to a push block (403), and the clamping rod (402) and the push block (403) are both slidably connected to the lower seat (106).

6. A plastic U-shaped gasket injection mold convenient for mass production according to claim 5, characterized in that: The anti-loosening assembly (5) comprises a fixed rod (501) and a rotating rod (502), wherein the fixed rod (501) is fixedly connected to the side of the upper seat (102), and the rotating rod (502) is rotatably connected to the lower seat (106). One end of the rotating rod (502) is fixedly connected to a rotating plate (503), and the other end of the rotating rod (502) is fixedly connected to a third spring (505). A circular hole (504) is provided on the outer surface of the rotating plate (503), and the fixed rod (501) is inserted into the inside of the circular hole (504). The end of the third spring (505) is fixedly connected to a circular plate (506), and the circular plate (506) is rotatably connected to the inside of the lower seat (106).

7. A plastic U-shaped gasket injection mold that is convenient for mass production according to claim 2, characterized in that: A positioning ring (6) is fixedly connected to the top of the upper connecting plate (101), and a connecting hole (7) is provided on the top of the upper connecting plate (101).

Images