Cooling device for precise injection molding

Abstract

The utility model discloses a cooling device for precise injection molding, and belongs to the technical field of cooling devices. The die comprises a lower die and a liquid nitrogen tank, wherein second heat dissipation holes are uniformly formed in the two ends of the front side and the rear side of the lower die respectively; first heat dissipation holes are evenly formed in the two sides of the left end and the right end of the lower mold correspondingly. A cooling channel is formed in the bottom of the lower mold; a mounting frame is arranged outside one end of the cooling channel; a conveying pipe is arranged on the liquid nitrogen tank, an inserting block is arranged at one end of the conveying pipe and inserted into the mounting frame, and the conveying pipe is connected with the cooling channel. Cold air is injected into the first heat dissipation holes and the second heat dissipation holes, cooling and heat dissipation can be conducted on the four walls of the mold, meanwhile, liquid nitrogen is conveyed into the cooling channel through the conveying pipe by the liquid nitrogen tank, and a formed part in the mold is heated by moving in the cooling channel, so that the cooling speed is increased, and the production efficiency is improved. The injection molding efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to cooling device technical field, concretely is a cooling device for precision injection molding. BACKGROUND

[0002] Injection molding is also called injection molding, it is a kind of injection and molding forming method.The advantages of injection molding method are high production speed, high efficiency, operation can realize automation, and the shape can be from simple to complex, size can be from big to small, and product size is accurate, product is easy to update, can form the workpiece of complex shape, injection molding is suitable for the forming processing field such as mass production and complex product

[0003] But the existing mould in the process of using, after the injection molding in the inside, all through natural cooling, cooling speed is low, thereby reduces the efficiency of injection molding, therefore, a kind of cooling device for precision injection molding is presented. UTILITY MODEL CONTENT

[0004] The utility model discloses a cooling device for precision injection molding, cold air is filled into the first heat dissipation hole and the second heat dissipation hole, the four walls of the mould can be cooled, and the liquid nitrogen is conveyed to the cooling channel by the conveying pipe, the cooling channel is moved, the formed piece in the mould is heated, the cooling speed is accelerated, and the injection molding efficiency is improved.

[0005] The utility model is realized through the following technical schemes:

[0006] The utility model discloses a cooling device for precision injection molding, including lower mould and liquid nitrogen tank, the two ends of the front and rear sides of lower mould are evenly provided with second heat dissipation hole;The two sides of the left and right ends of lower mould are evenly provided with first heat dissipation hole;The inside of the bottom of lower mould is provided with cooling channel, and the outside of one end of cooling channel is equipped with mounting frame;Liquid nitrogen tank is equipped with conveying pipe, and one end of conveying pipe is equipped with plug-in block, and plug-in block is inserted in mounting frame, and conveying pipe is connected with cooling channel.

[0007] Further, the plug-in block and the lower mould are provided with a sealing gasket.

[0008] Further, one side of the lower mould is provided with a pair of supporting plates, a sliding hole is formed in the supporting plate, a stepped column is matched in the sliding hole, an L-shaped block is arranged at the bottom of the thin end of the stepped column, a spring is arranged outside the thin end of the stepped column, one end of the spring is connected to the supporting plate, and the other end is connected to the L-shaped block.

[0009] Further, the two sides of the mounting frame are provided with through holes, the two sides of the plug-in block are provided with insertion holes, and one end of the L-shaped block penetrates through the through hole and is inserted into the insertion hole.

[0010] Further, one end of the L-shaped block is provided with an inclined surface structure.

[0011] Further, the other end of the cooling channel is externally provided with a discharge pipe.

[0012] The utility model has the advantages of the following beneficial effects:

[0013] 1、The utility model discloses a cold air is filled into first radiating hole and second radiating hole, can the cooling of mould four walls is carried out, simultaneously through liquid nitrogen tank, liquid nitrogen is transported to cooling channel through the conveying pipe, through moving in cooling channel, the forming piece in mould is warmed, thereby the cooling speed is accelerated, improves injection moulding efficiency.

[0014] 2、The utility model discloses a block is inserted into the installation frame and is extruded to L-shaped block, makes L-shaped block and stair column move, and is extruded to spring, makes it contract, after the block enters the inside of installation frame, L-shaped block is under the action of spring, and pops into the insertion hole, fixes and position the block, thereby reaches the effect of quick connection.

[0015] Of course, it is not necessary for any product embodying the utility model to achieve all the advantages mentioned above. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the cooling device and injection mould structure schematic diagram;

[0017] Figure 2 It is the block and installation frame structure schematic diagram;

[0018] Figure 3 It is the block structure schematic diagram;

[0019] Figure 4 It is the installation frame structure schematic diagram;

[0020] Figure 5 It is the lower mould internal structure schematic diagram.

[0021] In the drawing: 1, lower mould;102, first radiating hole;103, second radiating hole;104, cooling channel;3, liquid nitrogen tank;301, conveying pipe;302, block;303, insertion hole;304, sealing gasket;4, installation frame;5, support plate;6, stair column;7, spring;8, L-shaped block;9, discharge pipe. DETAILED DESCRIPTION

[0022] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a cooling device for precision injection molding, including lower mould 1 and liquid nitrogen tank 3, the two ends of the front and rear two sides of lower mould 1 are evenly provided with second heat dissipation hole 103 respectively;The two sides of the left and right ends of lower mould 1 are evenly provided with first heat dissipation hole 102 respectively;Cooling channel 104 is set in the bottom inside of lower mould 1, one end outside of cooling channel 104 is equipped with mounting frame 4, and mounting frame 4 is rectangular structure;Liquid nitrogen tank 3 is equipped with delivery pipe 301, one end of delivery pipe 301 is equipped with plug block 302, plug block 302 is rectangular structure, plug block 302 is inserted in mounting frame 4, and delivery pipe 301 is connected with cooling channel 104.

[0024] By pouring cold air into first heat dissipation hole 102 and second heat dissipation hole 103, the four walls of the mold can be cooled, and at the same time, liquid nitrogen is delivered from liquid nitrogen tank 3 to cooling channel 104 through delivery pipe 301, and the formed part in the mold is heated by moving in cooling channel 104, thereby accelerating the cooling speed and improving the injection molding efficiency.

[0025] Sealing pad 304 is provided between plug block 302 and lower mould 1 to increase the sealing property between delivery pipe 301 and cooling channel 104.

[0026] One side of lower mould 1 is provided with a pair of supporting plates 5, and a sliding hole is formed in the supporting plate 5, and a stepped column 6 is fitted in the sliding hole, and an L-shaped block 8 is provided at the bottom of the thin end of the stepped column 6, and one end of the L-shaped block 8 is provided with an inclined surface structure, which facilitates the extrusion of the L-shaped block 8, and a spring 7 is sleeved outside the thin end of the stepped column 6, one end of the spring 7 is connected to the supporting plate 5, and the other end is connected to the L-shaped block 8, and through holes are formed in the two sides of the mounting frame 4, and insertion holes 303 are formed in the two sides of the plug block 302, and one end of the L-shaped block 8 penetrates the through hole and is inserted into the insertion hole 303.

[0027] By inserting plug block 302 into mounting frame 4 to extrude L-shaped block 8, L-shaped block 8 and stepped column 6 are moved, and spring 7 is extruded to shrink, after plug block 302 enters the inside of mounting frame 4, L-shaped block 8 is popped into insertion hole 303 under the action of spring 7, to fix and limit plug block 302, so as to achieve the effect of quick connection.

[0028] The other end of the cooling channel 104 is externally provided with a discharge pipe 9, through which liquid nitrogen inside the cooling channel 104 is discharged.

[0029] The preferred embodiments disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details and do not limit the utility model to the specific embodiments described. Obviously, according to the content of the description, many modifications and changes can be made. The description selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the persons skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A cooling device for precision injection molding, comprising a lower mold (1) and a liquid nitrogen tank (3), characterized in that: second heat dissipation holes (103) are evenly arranged on both ends of the front and back of the lower mold (1); first heat dissipation holes (102) are evenly arranged on both sides of the left and right ends of the lower mold (1); a cooling channel (104) is arranged inside the bottom of the lower mold (1), and an installation frame (4) is arranged outside one end of the cooling channel (104); a delivery pipe (301) is arranged on the liquid nitrogen tank (3), one end of the delivery pipe (301) is provided with an insertion block (302), the insertion block (302) is inserted into the installation frame (4), and the delivery pipe (301) is connected with the cooling channel (104).

2. The cooling device for precision injection molding according to claim 1, characterized in that, A sealing gasket (304) is arranged between the insertion block (302) and the lower mold (1).

3. The cooling device for precision injection molding according to claim 1, characterized in that, One side of the lower mold (1) is provided with a pair of supporting plates (5), a sliding hole is arranged on the supporting plate (5), a stepped column (6) is matched in the sliding hole, an L-shaped block (8) is arranged at the bottom of the thin end of the stepped column (6), a spring (7) is arranged outside the thin end of the stepped column (6), one end of the spring (7) is connected to the supporting plate (5), and the other end is connected to the L-shaped block (8).

4. The cooling device for precision injection molding according to claim 3, characterized in that, Through holes are arranged on both sides of the installation frame (4), insertion holes (303) are arranged on both sides of the insertion block (302), and one end of the L-shaped block (8) penetrates through the through hole and is inserted into the insertion hole (303).

5. The cooling device for precision injection molding according to claim 4, characterized in that, One end of the L-shaped block (8) is provided with an inclined surface structure.

6. The cooling device for precision injection molding according to claim 1, characterized in that, An exhaust pipe (9) is arranged outside the other end of the cooling channel (104).

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