Anti-leakage injection mold

Abstract

The utility model discloses an anti-leakage injection mold, which belongs to the technical field of injection molding and comprises a box body, a water inlet pipe is connected to the side wall of the box body, a filter component is arranged in the water inlet pipe, a lower mold is connected to the interior of the box body, a water cooling mechanism is arranged between the box body and the lower mold, and an electric push rod is connected to the upper portion of the box body. The output end of the electric push rod is connected with an upper mold, an anti-leakage mechanism is arranged on the side, close to the lower mold, of the upper mold, and an injection molding pipe is connected into the upper mold. The injection component is arranged, the pull column is manually pulled to drive the sealing plug to move upwards, the sealing plug moves upwards to drive the sealing ring to move to be separated from the sealing groove, then injection molding raw materials are injected into the injection barrel, and the injected injection molding raw materials enter the injection molding pipe through the injection pipe and the elastic corrugated pipe; and then the materials are injected into the upper mold and the lower mold through the injection molding pipe for injection molding operation, so that an operator can conveniently perform injection operation.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molding, and in particular relates to an anti-leakage injection mold. Background Art

[0002] Injection molding is a method of producing industrial products. Products are usually made using rubber injection molding and plastic injection molding. Injection molding can also be divided into injection molding and die casting.

[0003] Chinese patent application No. 202222517571.5 discloses a leakage-proof injection mold, including: a box body, an upper mold is arranged near the top of the box body, and a lower mold is arranged below the upper mold; and a sealing component is arranged between the upper mold and the lower mold to prevent the injection liquid in the mold from leaking. This mold can seal the gap between the molds through the upper mold, the lower mold and the sealing component through a multi-layer sealing structure to prevent the mold from leaking during use.

[0004] In the above patent, the upper mold is installed inside the box, and it is difficult for subsequent operators to inject injection molding materials between the upper mold and the lower mold through the injection tube on the upper mold, which affects the injection molding efficiency; in addition, a water inlet pipe is connected to the side wall of the box, and cooling water is injected into the cold water cavity on the lower mold through the water inlet pipe. However, when impurities are mixed in the cooling water, the impurities adhere to the heat sink components inside the cold water cavity, which is easy to affect the use effect of the heat sink. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a leakage-proof injection mold, which has the characteristics of being easy to inject materials and filter and remove impurities.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a leakage-proof injection mold, comprising a box body, a water inlet pipe is connected to the side wall of the box body, a filter assembly is arranged inside the water inlet pipe, a lower mold is connected inside the box body, a water cooling mechanism is arranged between the box body and the lower mold, an electric push rod is connected to the top of the box body, an upper mold is connected to the output end of the electric push rod, a leakage-proof mechanism is arranged on the side of the upper mold close to the lower mold, an injection tube is connected inside the upper mold, and an injection assembly is arranged at one end of the injection tube.

[0007] Preferably, the injection assembly includes an injection barrel, an injection tube, an elastic bellows and a seal. An elastic bellows is provided at one end of the injection tube, an injection tube is provided at the end of the elastic bellows away from the injection tube, an injection barrel is connected to the end of the injection tube away from the elastic bellows, and a seal is provided inside the injection barrel.

[0008] Preferably, the injection pipe and the injection molding pipe are connected to connecting flanges at one end close to the elastic bellows and at both ends of the elastic bellows.

[0009] Preferably, the sealing member comprises a sealing plug, a pull column, a sealing ring and a sealing groove. A sealing plug is arranged inside the injection barrel, a sealing ring is connected to the outer wall of the sealing plug, a sealing groove is arranged on the inner wall of the injection barrel at a position corresponding to the sealing ring, and a pull column is connected above the sealing plug.

[0010] Preferably, the filter assembly includes a filter screen cartridge, a fixing ring and a mounting ring, the fixing ring is connected to the inner wall of the water inlet pipe, a mounting ring is provided on one side of the fixing ring, and a filter screen cartridge is connected to one side of the mounting ring and located inside the fixing ring.

[0011] Preferably, the filter assembly also includes a sealing gasket, a connecting groove and a connecting tube. The connecting tube is connected to the side of the mounting ring close to the fixed ring. A connecting groove is provided on the side wall of the fixed ring at a position corresponding to the connecting tube. Sealing gaskets are connected on the side wall of the mounting ring and on both sides of the connecting tube.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model is provided with an injection assembly, and the pull column is manually pulled to drive the sealing plug to move upward, and the upward movement of the sealing plug drives the sealing ring to move out of the sealing groove, and then the injection molding material is injected into the injection barrel. The injected injection molding material enters the injection molding tube through the injection tube and the elastic bellows, and then is injected into the upper mold and the lower mold through the injection molding tube for injection molding operation, which is convenient for the operator to perform the injection operation.

[0014] 2. The utility model sets a filtering assembly, and the connecting cylinder is inserted into the connecting groove and rotated, so that the connecting cylinder is threadedly connected to the connecting groove, so that the mounting ring can be moved to fit to one end of the fixing ring, and the sealing gasket is then fitted to one end of the fixing ring. At the same time, the filter screen cylinder is inserted into the water inlet pipe. After the subsequent cooling water enters the water inlet pipe, it is filtered through the filter screen cylinder and then enters the water cooling mechanism, so as to prevent impurities mixed in the cooling water from entering the water cooling mechanism and adhering to the side wall of the water cooling mechanism, thereby affecting the water cooling effect of the water cooling mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a cross-sectional view of the utility model;

[0017] Figure 3 It is a partial cross-sectional view of the connection state between the injection assembly and the injection tube of the utility model;

[0018] Figure 4 For this utility model Figure 3 The enlarged view of point A in the middle;

[0019] Figure 5 It is a cross-sectional view of the water inlet pipe of the utility model;

[0020] Figure 6 For this utility model Figure 5 Enlarged view of point B in the middle.

[0021] In the figure: 1. box body; 2. electric push rod; 3. injection assembly; 31. injection barrel; 32. injection pipe; 33. connecting flange; 34. elastic bellows; 35. sealing member; 351. sealing plug; 352. pull column; 353. sealing ring; 354. sealing groove; 4. water inlet pipe; 5. upper mold; 6. water cooling mechanism; 7. lower mold; 8. injection pipe; 9. anti-leakage mechanism; 10. filter assembly; 101. filter screen cylinder; 102. fixing ring; 103. mounting ring; 104. sealing gasket; 105. connecting groove; 106. connecting barrel. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, 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.

[0023] Example 1

[0024] See also Figure 1-6 The utility model provides the following technical solutions: a leakage-proof injection mold, comprising a box body 1, a water inlet pipe 4 is connected to the side wall of the box body 1, a filter assembly 10 is arranged inside the water inlet pipe 4, a lower mold 7 is connected inside the box body 1, a water cooling mechanism 6 is arranged between the box body 1 and the lower mold 7, an electric push rod 2 is connected to the top of the box body 1, an upper mold 5 is connected to the output end of the electric push rod 2, an anti-leakage mechanism 9 is arranged on the side of the upper mold 5 close to the lower mold 7, an injection tube 8 is connected inside the upper mold 5, and an injection assembly 3 is arranged at one end of the injection tube 8.

[0025] Specifically, the injection assembly 3 includes an injection barrel 31, an injection tube 32, an elastic bellows 34 and a sealing member 35. The elastic bellows 34 is disposed at one end of the injection tube 8, the injection tube 32 is disposed at the end of the elastic bellows 34 away from the injection tube 8, the injection barrel 31 is connected to the end of the injection tube 32 away from the elastic bellows 34, and the sealing member 35 is disposed inside the injection barrel 31.

[0026] By adopting the above technical solution, the seal 35 is taken out from the inside of the injection barrel 31, and then the injection molding material is injected into the injection barrel 31. The injected injection molding material enters the injection tube 8 through the injection tube 32 and the elastic bellows 34, and then is injected into the upper mold 5 and the lower mold 7 through the injection tube 8 for injection molding operation, which is convenient for the operator to perform the injection operation.

[0027] Specifically, the injection pipe 32 and the injection pipe 8 are connected to the end close to the elastic bellows 34 and both ends of the elastic bellows 34 are connected to the connecting flange 33.

[0028] By adopting the above technical solution, the connecting flanges 33 at both ends of the elastic bellows 34 are connected to the injection pipe 32 and the connecting flanges 33 on the injection pipe 8 by bolts, which facilitates the connection operation of the elastic bellows 34 with the injection pipe 32 and the injection pipe 8.

[0029] Specifically, the sealing member 35 includes a sealing plug 351, a pull column 352, a sealing ring 353 and a sealing groove 354. The sealing plug 351 is arranged inside the injection barrel 31, and the sealing ring 353 is connected to the outer wall of the sealing plug 351. The sealing groove 354 is arranged on the inner wall of the injection barrel 31 at a position corresponding to the sealing ring 353. The pull column 352 is connected above the sealing plug 351.

[0030] By adopting the above technical solution, the pulling column 352 is pulled to drive the sealing plug 351 to move upward, and the upward movement of the sealing plug 351 drives the sealing ring 353 to move out of the sealing groove 354, so that the sealing plug 351 can be easily taken out.

[0031] When the present embodiment is used, the box door on the box body 1 is opened, and the connecting flanges 33 at both ends of the elastic bellows 34 are connected to the injection pipe 32 and the connecting flanges 33 on the injection pipe 8 by external bolts, and then the box door is closed, and then the electric push rod 2 is used to drive the upper mold 5 to move and fit to the upper surface of the lower mold 7, and the upper mold 5 moves to drive the anti-leakage mechanism 9 to move and fit to the lower mold 7 and the elastic bellows 34 is stretched, and then the pull column 352 is manually pulled to drive the sealing plug 351 to move upward, and the sealing plug 351 moves upward to drive the sealing ring 35 3 is moved away from the sealing groove 354, and then the injection material is injected into the injection barrel 31. The injected injection material enters the injection tube 8 through the injection tube 32 and the elastic bellows 34, and then is injected into the upper mold 5 and the lower mold 7 through the injection tube 8 for injection molding, which is convenient for the operator to perform the injection operation. Then, the cooling water delivery pipe is connected to the water inlet pipe 4, so that the cooling water enters the water cooling mechanism 6, and the injection molded part between the upper mold 5 and the lower mold 7 is cooled, thereby accelerating the molding efficiency of the injection molded part.

[0032] Example 2

[0033] The present embodiment is different from the first embodiment in that the filter assembly 10 comprises a filter screen cartridge 101, a fixing ring 102 and a mounting ring 103. The fixing ring 102 is connected to the inner wall of the water inlet pipe 4. The mounting ring 103 is provided on one side of the fixing ring 102. The filter screen cartridge 101 is connected to one side of the mounting ring 103 and is located inside the fixing ring 102.

[0034] Specifically, the filter assembly 10 further includes a sealing gasket 104, a connecting groove 105 and a connecting tube 106. The connecting tube 106 is connected to the side of the mounting ring 103 close to the fixed ring 102. The connecting groove 105 is provided on the side wall of the fixed ring 102 at a position corresponding to the connecting tube 106. The sealing gasket 104 is connected to the side wall of the mounting ring 103 and located on both sides of the connecting tube 106.

[0035] By adopting the above technical solution, the connecting tube 106 is inserted into the connecting groove 105 and rotated, so that the connecting tube 106 is threadedly connected to the connecting groove 105, so that the mounting ring 103 can be moved to fit to one end of the fixing ring 102, and the sealing gasket 104 is then fitted to one end of the fixing ring 102. Under the action of the sealing gasket 104, a gap between the mounting ring 103 and the fixing ring 102 can be avoided.

[0036] When this embodiment is used, the connecting tube 106 is inserted into the connecting groove 105 and rotated, so that the connecting tube 106 is threadedly connected to the connecting groove 105, so that the mounting ring 103 can be moved to fit to one end of the fixing ring 102, and the sealing gasket 104 is then fitted to one end of the fixing ring 102. At the same time, the filter screen tube 101 is inserted into the water inlet pipe 4. After the subsequent cooling water enters the water inlet pipe 4, it is filtered through the filter screen tube 101 and then enters the water cooling mechanism 6, so as to prevent impurities mixed in the cooling water from entering the water cooling mechanism 6 and adhering to the side wall of the water cooling mechanism 6, thereby affecting the water cooling effect of the water cooling mechanism 6.

[0037] The structure and principle of the water cooling mechanism 6 composed of a workbench, a water storage cavity, a water outlet pipe, a water pump, a water pumping pipe, a cooling cavity, a heat sink, and a reflux pipe in the utility model have been disclosed in a leak-proof injection mold disclosed in Chinese patent application No. 202222517571.5. Its working principle is: a workbench is connected to the inside of the box body 1 and is located below the lower mold 7. A water storage cavity is opened inside the workbench, and a water pump is installed inside the water storage cavity. A cooling cavity is opened inside the lower mold 7, and a plurality of blocks are arranged evenly horizontally inside the cooling cavity. The heat sinks are arranged in a row, a water extraction pipe is connected between the cooling chamber and the water pump, and a return pipe is connected between the cooling chamber and the water storage chamber. When in use, the heat of the injection molded part in the lower mold 7 is gathered on the heat sink, and the cooling water is input into the water storage chamber through the water inlet pipe 4. Then, the cooling water is input into the cooling chamber by the water pump and the water extraction pipe, and the heat sink in the cooling chamber is heat exchanged to quickly take away the heat of the injection molded part, so as to achieve the effect of rapid cooling and molding of the injection molded workpiece, and the cooling water after heat exchange flows back to the water storage chamber through the return pipe for recycling.

[0038] The structure and principle of the anti-leakage mechanism 9 composed of a sealing groove, a sealing ring, a pressing groove, a pressure spring, a movable plate, a sealing block, and an annular groove in the utility model have been disclosed in a leakage-proof injection mold disclosed in Chinese patent application No. 202222517571.5. Its working principle is: a sealing groove with an annular structure is arranged on the upper surface of the lower mold 7, a sealing ring is fixed on the upper surface of the lower mold 7, and the sealing groove is located on the inner side of the sealing ring, an annular groove is arranged on the lower surface of the upper mold 5 and at the position corresponding to the sealing ring, a pressing groove with an annular structure is arranged on the lower surface of the upper mold 5, and a sealing groove with a sealing ring is arranged inside the pressing groove. The sealing block used in conjunction with the groove has a movable plate connected to one side of the sealing block, and a pressure spring is connected between the movable plate and the pressing groove. When in use, the electric push rod 2 is used to drive the upper mold 5 to move downward and close the mold with the lower mold 7, the sealing block of the upper mold 5 moves downward and makes the sealing block inserted into the sealing groove, and makes the sealing block close to the inner wall of the sealing groove, so that the sealing block completely seals the gap between the upper mold 5 and the lower mold 7 to prevent the injection liquid inside the mold from leaking, and the sealing ring on the lower mold 7 is inserted into the annular groove and close to the inner wall of the annular groove, further improving the sealing effect of the mold and preventing the injection liquid from leaking to the maximum extent.

[0039] The working principle and use process of the utility model are as follows: the utility model opens the box door on the box body 1, and then uses external bolts to connect the connecting flanges 33 at both ends of the elastic bellows 34 with the injection pipe 32 and the connecting flanges 33 on the injection pipe 8, and then closes the box door, and then inserts the connecting tube 106 into the connecting groove 105 and rotates it, so that the connecting tube 106 is threadedly connected to the connecting groove 105, so that the mounting ring 103 can be moved to fit one end of the fixing ring 102, and the sealing gasket 104 is then fitted to one end of the fixing ring 102, and at the same time the filter screen cylinder 101 is inserted into the water inlet pipe 4, and then the electric push rod 2 is used to drive the upper mold 5 to move and fit to the upper surface of the lower mold 7, and the upper mold 5 moves to drive the anti-leakage mechanism 9 to move and fit to the lower mold 7 and the elastic bellows 34 to stretch, and then manually pull the pull column 352 to drive The sealing plug 351 moves upward, and the upward movement of the sealing plug 351 drives the sealing ring 353 to move out of the sealing groove 354, and then the injection molding material is injected into the injection barrel 31, and the injected injection molding material enters the injection molding tube 8 through the injection tube 32 and the elastic bellows 34, and then is injected into the upper mold 5 and the lower mold 7 through the injection molding tube 8 for injection molding operation, which is convenient for the operator to perform the injection operation, and then the cooling water delivery pipe is connected to the water inlet pipe 4, and then filtered through the filter mesh cylinder 101 to the inside of the water cooling mechanism 6 to prevent impurities mixed in the cooling water from entering the inside of the water cooling mechanism 6 and adhering to the side wall of the water cooling mechanism 6, affecting the water cooling effect of the water cooling mechanism 6, so that the cooling water after filtering and impurity removal enters the inside of the water cooling mechanism 6, and the injection molding part between the upper mold 5 and the lower mold 7 is cooled, thereby accelerating the molding efficiency of the injection molding part.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A leak-proof injection mold, comprising a box body, characterized in that: The side wall of the box body is connected to a water inlet pipe, a filter assembly is arranged inside the water inlet pipe, a lower mold is connected inside the box body, a water cooling mechanism is arranged between the box body and the lower mold, an electric push rod is connected to the top of the box body, an upper mold is connected to the output end of the electric push rod, an anti-leakage mechanism is arranged on the side of the upper mold close to the lower mold, an injection tube is connected inside the upper mold, and an injection assembly is arranged at one end of the injection tube.

2. The anti-leakage injection mold according to claim 1, characterized in that: The injection assembly includes an injection barrel, an injection tube, an elastic bellows and a seal. The elastic bellows is arranged at one end of the injection tube, the injection tube is arranged at the end of the elastic bellows away from the injection tube, the injection barrel is connected to the end of the injection tube away from the elastic bellows, and a seal is arranged inside the injection barrel.

3. The anti-leakage injection mold according to claim 2, characterized in that: The ends of the injection pipe and the injection pipe close to the elastic bellows and both ends of the elastic bellows are connected with connecting flanges.

4. The anti-leakage injection mold according to claim 2, characterized in that: The sealing member comprises a sealing plug, a pull column, a sealing ring and a sealing groove. A sealing plug is arranged inside the injection barrel, a sealing ring is connected to the outer wall of the sealing plug, a sealing groove is arranged on the inner wall of the injection barrel at a position corresponding to the sealing ring, and a pull column is connected above the sealing plug.

5. The anti-leakage injection mold according to claim 1, characterized in that: The filter assembly includes a filter screen cylinder, a fixing ring and a mounting ring. The fixing ring is connected to the inner wall of the water inlet pipe, a mounting ring is arranged on one side of the fixing ring, and a filter screen cylinder is connected to one side of the mounting ring and inside the fixing ring.

6. The anti-leakage injection mold according to claim 5, characterized in that: The filter assembly also includes a sealing gasket, a connecting groove and a connecting tube. The connecting tube is connected to the side of the mounting ring close to the fixed ring. A connecting groove is provided on the side wall of the fixed ring at a position corresponding to the connecting tube. Sealing gaskets are connected on the side wall of the mounting ring and on both sides of the connecting tube.

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