Cooling water path for injection mold

Abstract

The utility model relates to the technical field of injection molds, in particular to a cooling waterway for an injection mold, which comprises a first cooling pipe and a second cooling pipe, first valves are fixed at two ends of the first cooling pipe and the second cooling pipe, and second valves are fixed at the bottom ends of the first cooling pipe and the second cooling pipe. A water pump is fixed to the top end of the descaling agent storage box, a water inlet pipe of the water pump extends into the descaling agent storage box, a third valve is fixed to a drainage pipe of the water pump, and a telescopic pipe is fixed to the end, away from the water pump, of the third valve; the end, away from the third valve, of the telescopic pipe is connected with the first cooling pipe, a connecting pipe is fixed to the telescopic pipe, a fourth valve is fixed to the end, away from the telescopic pipe, of the connecting pipe, and the end, away from the connecting pipe, of the fourth valve is connected with the second cooling pipe. The utility model is convenient for cleaning the scale and can prevent the scale from being accumulated.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a cooling water channel for injection molds. Background Art

[0002] An injection mold is a tool for producing plastic products, and it is also a tool that gives plastic products a complete structure and precise dimensions. Injection molding is a processing method used in the mass production of certain parts with complex shapes. Specifically, it refers to the high-pressure injection of heated and melted plastic into the mold cavity by an injection molding machine, and after cooling and solidification, a molded product is obtained. In order to improve the cooling efficiency of the injection mold, a cooling water channel is generally set in the injection mold. After the cooling water channel has been used for a period of time, scale will accumulate inside the cooling water channel, affecting the water flow and the cooling of the injection mold. Therefore, a cooling water channel for an injection mold is proposed to prevent scale accumulation. Utility Model Content

[0003] In view of the problems in the prior art, the utility model provides a cooling water channel for an injection mold.

[0004] The utility model solves the technical problem by adopting a technical solution that is a cooling water circuit for an injection mold, comprising a first cooling pipe and a second cooling pipe, both ends of the first cooling pipe and the second cooling pipe are fixed with a first valve, the bottom ends of the first cooling pipe and the second cooling pipe are fixed with a second valve, a bottom mold is provided below the first cooling pipe, a top mold is provided at the top of the bottom mold, a slot adapted to the second cooling pipe is provided at the bottom end of the bottom mold, a slot adapted to the first cooling pipe is provided at the top end of the top mold, a base is fixed at the bottom end of the bottom mold, a pressure cover is fixed at the top end of the top mold, and a A conduit is connected to the mold cavity at the bottom end of the top mold, a descaling agent storage box is provided on one side of the base, a water pump is fixed to the top of the descaling agent storage box, a water inlet pipe of the water pump extends into the descaling agent storage box, a third valve is fixed to the drain pipe of the water pump, a telescopic tube is fixed to the end of the third valve away from the water pump, the end of the telescopic tube away from the third valve is connected to the first cooling pipe, a connecting tube is fixed to the telescopic tube, a fourth valve is fixed to the end of the connecting tube away from the telescopic tube, the end of the fourth valve away from the connecting tube is connected to the second cooling pipe, and a hose is fixed to the first valve close to the water pump.

[0005] By adopting the above technical solution, the external cooling water delivery pipe is connected to the hose near the water pump and the first valve, the third valve, the fourth valve, and the two second valves are closed, and the four first valves are opened, and the cooling water enters the first cooling pipe and the second cooling pipe, which is beneficial to the cooling of the top mold and the bottom mold, the four first valves are closed, the third valve and the fourth valve are opened, and the water pump draws the descaling agent in the descaling agent storage tank, and the descaling agent enters the first cooling pipe and the second cooling pipe. After a period of time, the two second valves are opened to discharge the scale and descaling agent in the first cooling pipe and the second cooling pipe, thereby preventing scale from accumulating in the first cooling pipe and the second cooling pipe.

[0006] Specifically, a liquid filling port is provided at the top of the descaling agent storage box, and a plugging cover is provided inside the liquid filling port.

[0007] By adopting the above technical solution, the descaling agent can be conveniently added into the descaling agent storage box through the liquid filling port, and the plugging cover can prevent debris from falling into the descaling agent storage box.

[0008] Specifically, an observation window is provided on one side of the descaling agent storage box, and glass is provided in the observation window.

[0009] By adopting the above technical solution, the remaining amount of the descaling agent in the descaling agent storage box can be conveniently observed through the observation window and the glass.

[0010] Specifically, two connecting plates are fixed to the top of the gland, and a plurality of connecting holes are formed at the tops of the two connecting plates.

[0011] By adopting the above technical solution, the connection holes on the connecting plate are arranged to facilitate connecting the piston rod of the hydraulic cylinder to the connecting plate by bolts. The piston rod of the hydraulic cylinder drives the connecting plate and the top mold to move vertically, thereby adjusting the position of the top mold.

[0012] Specifically, two connection blocks are fixed on both sides of the base, and through holes are opened on the four connection blocks.

[0013] By adopting the above technical solution, during installation, the bottom end of the bolt is passed through the through hole on the connecting block, so that the connecting block can be conveniently fixed in a suitable position.

[0014] Beneficial effects of the utility model:

[0015] (1) The utility model discloses a cooling water circuit for an injection mold, which connects an external cooling water delivery pipe to a hose near a water pump and a first valve, closes the third valve, the fourth valve, and the two second valves, opens the four first valves, and allows cooling water to enter the first cooling pipe and the second cooling pipe, which is beneficial to the cooling of the top mold and the bottom mold. The four first valves are closed, the third valve and the fourth valve are opened, and the water pump extracts the descaling agent from the descaling agent storage box, and the descaling agent enters the first cooling pipe and the second cooling pipe. After a period of time, the two second valves are opened to discharge the scale and descaling agent in the first cooling pipe and the second cooling pipe, thereby preventing scale from accumulating in the first cooling pipe and the second cooling pipe.

[0016] (2) The cooling water circuit for an injection mold described in the utility model can conveniently observe the remaining amount of descaling agent in the descaling agent storage box through the observation window and the glass, and can conveniently add the descaling agent into the descaling agent storage box through the liquid filling port, and the plugging cover can prevent debris from falling into the descaling agent storage box. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a top view of the first cooling pipe of the utility model;

[0020] Figure 3 For the utility model Figure 1 A magnified view of the structure in the middle.

[0021] In the figure: 1. first cooling pipe; 2. second cooling pipe; 3. first valve; 4. second valve; 5. bottom mold; 6. base; 7. top mold; 8. connecting block; 9. pressure cover; 10. connecting plate; 11. descaling agent storage box; 12. water pump; 13. plugging cover; 14. glass; 15. hose; 16. third valve; 17. telescopic tube; 18. connecting tube; 19. fourth valve. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] In order to prevent scale accumulation, as an embodiment of the utility model, Figure 1 , Figure 2 , Figure 3As shown, a cooling water circuit for an injection mold described in the utility model comprises a first cooling pipe 1 and a second cooling pipe 2, both ends of the first cooling pipe 1 and the second cooling pipe 2 are welded and fixed with a first valve 3, the bottom ends of the first cooling pipe 1 and the second cooling pipe 2 are welded and fixed with a second valve 4, a bottom mold 5 is provided below the first cooling pipe 1, a top mold 7 is provided at the top end of the bottom mold 5, a groove adapted to the second cooling pipe 2 is provided at the bottom end of the bottom mold 5, a groove adapted to the first cooling pipe 1 is provided at the top end of the top mold 7, a base 6 is welded and fixed at the bottom end of the bottom mold 5, a pressure cap 9 is welded and fixed at the top end of the top mold 7, a conduit connected to the mold cavity at the bottom end of the top mold 7 is welded and fixed on the pressure cap 9, and liquid plastic is injected into the bottom mold 5 through the conduit. A descaling agent storage box 11 is provided on one side of the base 6, a water pump 12 is fixed to the top of the descaling agent storage box 11 by bolts, a water inlet pipe of the water pump 12 extends into the descaling agent storage box 11, a third valve 16 is welded and fixed to the drain pipe of the water pump 12, a telescopic pipe 17 is welded and fixed to the end of the third valve 16 away from the water pump 12, an end of the telescopic pipe 17 away from the third valve 16 is welded and connected to the first cooling pipe 1, a connecting pipe 18 is welded and fixed to the telescopic pipe 17, a fourth valve 19 is welded and fixed to the end of the connecting pipe 18 away from the telescopic pipe 17, an end of the fourth valve 19 away from the connecting pipe 18 is welded and connected to the second cooling pipe 2, and a hose 15 is welded and fixed to the first valve 3 close to the water pump 12.

[0024] When in use, connect the external cooling water delivery pipe to the hose 15 near the water pump 12 and the first valve 3, close the third valve 16, the fourth valve 19, and the two second valves 4, open the four first valves 3, and the cooling water enters the first cooling pipe 1 and the second cooling pipe 2, which is beneficial to the cooling of the top mold 7 and the bottom mold 5, close the four first valves 3, open the third valve 16 and the fourth valve 19, the water pump 12 extracts the descaling agent in the descaling agent storage tank 11, and the descaling agent enters the first cooling pipe 1 and the second cooling pipe 2, open the two second valves 4 after a period of time, discharge the scale and descaling agent in the first cooling pipe 1 and the second cooling pipe 2, thereby preventing scale from accumulating in the first cooling pipe 1 and the second cooling pipe 2.

[0025] For convenience of adding descaling agent, exemplary, such as Figure 1 As shown, a liquid filling port is provided at the top of the descaling agent storage box 11, and a plugging cover 13 is provided inside the liquid filling port.

[0026] In order to conveniently observe the remaining amount of the descaling agent in the descaling agent storage box 11, for example, Figure 1 As shown, an observation window is provided on one side of the descaling agent storage box 11, and a glass 14 is provided in the observation window. The glass 14 is connected to the descaling agent storage box 11 by an adhesive.

[0027] In order to facilitate the connection with the piston rod of the hydraulic cylinder, for example, Figure 1 As shown, two connecting plates 10 are welded and fixed to the top of the gland 9, and a plurality of connecting holes are formed at the tops of the two connecting plates 10.

[0028] In order to facilitate the installation of the base 6, for example, Figure 1 As shown, two connection blocks 8 are welded and fixed on both sides of the base 6, and through holes are opened on the four connection blocks 8.

[0029] When the utility model is in use, the external cooling water delivery pipe is connected to the hose 15 near the water pump 12 and the first valve 3, the third valve 16, the fourth valve 19, and the two second valves 4 are closed, and the four first valves 3 are opened, and the cooling water enters the first cooling pipe 1 and the second cooling pipe 2, which is beneficial to the cooling of the top mold 7 and the bottom mold 5;

[0030] Close the four first valves 3, open the third valve 16 and the fourth valve 19, and the water pump 12 extracts the descaling agent in the descaling agent storage tank 11, and the descaling agent enters the first cooling pipe 1 and the second cooling pipe 2. After a period of time, open the two second valves 4 to discharge the scale and descaling agent in the first cooling pipe 1 and the second cooling pipe 2, thereby preventing scale from accumulating in the first cooling pipe 1 and the second cooling pipe 2;

[0031] The remaining amount of the descaling agent in the descaling agent storage box 11 can be conveniently observed through the observation window and the glass 14 , and the descaling agent can be added into the descaling agent storage box 11 through the liquid filling port by removing the plugging cover 13 .

[0032] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the description in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements fall within the scope of protection claimed by the utility model. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents. The contents not described in detail in the utility model belong to the prior art known to those skilled in the art.

Claims

1. A cooling water channel for an injection mold, characterized in that: The invention comprises a first cooling tube (1) and a second cooling tube (2), wherein both ends of the first cooling tube (1) and the second cooling tube (2) are fixed with a first valve (3), and the bottom ends of the first cooling tube (1) and the second cooling tube (2) are fixed with a second valve (4), a bottom mold (5) is provided below the first cooling tube (1), a top mold (7) is provided at the top end of the bottom mold (5), a slot matching the second cooling tube (2) is provided at the bottom end of the bottom mold (5), a slot matching the first cooling tube (1) is provided at the top end of the top mold (7), a base (6) is fixed at the bottom end of the bottom mold (5), a pressure cover (9) is fixed at the top end of the top mold (7), a conduit connected to the mold cavity at the bottom end of the top mold (7) is fixed on the pressure cover (9), and a descaling agent storage tank is provided on one side of the base (6). A water pump (12) is fixed on the top of the descaling agent storage box (11), a water inlet pipe of the water pump (12) extends into the descaling agent storage box (11), a third valve (16) is fixed on the drain pipe of the water pump (12), a telescopic tube (17) is fixed on the end of the third valve (16) away from the water pump (12), the end of the telescopic tube (17) away from the third valve (16) is connected to the first cooling tube (1), a connecting tube (18) is fixed on the telescopic tube (17), a fourth valve (19) is fixed on the end of the connecting tube (18) away from the telescopic tube (17), the end of the fourth valve (19) away from the connecting tube (18) is connected to the second cooling tube (2), and a hose (15) is fixed on the first valve (3) close to the water pump (12).

2. A cooling water channel for an injection mold according to claim 1, characterized in that: The top of the descaling agent storage box (11) is provided with a liquid filling port, and a blocking cover (13) is provided inside the liquid filling port.

3. The cooling water channel for injection mold according to claim 1, characterized in that: An observation window is provided on one side of the descaling agent storage box (11), and glass (14) is provided in the observation window.

4. The cooling water channel for injection mold according to claim 1, characterized in that: Two connecting plates (10) are fixed to the top of the gland (9), and a plurality of connecting holes are provided at the tops of the two connecting plates (10).

5. The cooling water channel for injection mold according to claim 1, characterized in that: Two connection blocks (8) are fixed on both sides of the base (6), and through holes are provided on the four connection blocks (8).

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