Electric water pump cover insert type high pressure die casting forming mold structure

Abstract

The application relates to a high-pressure die-casting forming die structure of an electric water pump cover insert block type, which comprises a fixed die and a movable die, the fixed die is provided with a die core, the die core comprises a male die arranged on the movable die and a female die arranged on the male die, and a forming cavity is arranged on the opposite side of the male die and the female die; the movable die is provided with a feeding cylinder, a feeding opening is arranged on the feeding cylinder, a feeding channel is arranged on the male die, the feeding channel is communicated with the feeding opening and the forming cavity; an installation groove is arranged on the male die, an insert block is arranged in the installation groove, the insert block is accommodated in the female die to form the forming cavity; an installation column is arranged at the bottom of the installation groove, the installation column passes through the insert block to be installed in the installation groove, and the installation column is located at four corner positions of the insert block; a backing plate is arranged at the bottom of the installation groove, and the bottom of the insert block abuts against the backing plate. The application has the effect of facilitating the maintenance of the die.

Description

Technical Field

[0001] This utility model relates to the field of die casting technology, and in particular to a high-pressure die casting molding mold structure for an electric water pump cover insert. Background Technology

[0002] The electric water pump cover is an important component of the electric water pump. Its main function is to seal the pump cavity and protect the internal mechanical structure. The electric water pump cover prevents liquid leakage, prevents foreign objects from entering, provides mechanical support for the pump body, and provides inlet and outlet connections.

[0003] Electric water pump covers are usually made by high-pressure die casting. After multiple mold openings, the mold will experience a certain degree of wear, affecting the quality of the water pump cover and the service life of the mold. Therefore, the mold needs to be maintained regularly to ensure the quality of the water pump cover. However, mold maintenance usually requires the replacement of the entire part forming the molding cavity, which is quite troublesome and costly, and needs to be improved. Utility Model Content

[0004] To reduce the cost of mold maintenance, this application provides an electric water pump cover insert type high-pressure die casting mold structure.

[0005] The electric water pump cover insert-type high-pressure die-casting mold structure provided in this application adopts the following technical solution:

[0006] A high-pressure die-casting mold structure for an electric water pump cover insert includes a fixed mold and a moving mold. The fixed mold has a mold core, which includes a punch on the moving mold and a die on the punch. A forming cavity is formed on one side of the punch and the die opposite to each other. The moving mold has an injection cylinder with an injection port. The punch has an injection channel that connects the injection port and the forming cavity. The punch has an installation groove with an insert inside. The insert is accommodated in the die to form the forming cavity.

[0007] Preferably, the bottom of the mounting groove is provided with a mounting post, and the insert is for the mounting post to pass through and be installed in the mounting groove. The mounting post is located at the four corners of the insert.

[0008] Preferably, the bottom of the mounting groove is provided with a pad, and the bottom of the insert abuts against the pad.

[0009] Preferably, there are four mounting slots located at the four edges of the punch, and the inserts are arranged in a one-to-one correspondence with the mounting slots; the injection channel includes a main channel and sub-channels, with the sub-channels distributed in pairs on both sides of the main channel, the main channel connecting to the injection port, and the sub-channels connecting the main channel and the molding cavity.

[0010] Preferably, the punch has a receiving cavity, and a slag bag is provided in the receiving cavity, and the slag bag is connected to the insert.

[0011] Preferably, the fixed mold is provided with an ejection mechanism for ejecting the product. The ejection mechanism includes an ejection cylinder, a drive plate, an ejection plate, and ejection rods. The ejection cylinder is fixed to the fixed mold, the ejection plate is fixed to the drive plate, and a plurality of ejection rods are fixed to the ejection plate. The ejection rods are used to eject the product.

[0012] Preferably, the fixed mold is provided with a guide post, the guide post passes through the drive plate and the ejector plate, and the ejector plate moves toward or away from the moving mold; the guide post is provided with a limiting protrusion, the limiting protrusion is spaced apart from the ejector plate, and the limiting protrusion is used to abut against the ejector plate.

[0013] The main technical effects of this utility model are reflected in the following aspects:

[0014] 1. This utility model uses an insert on the punch to make the punch surface cooperate with the die to form a forming cavity. After multiple pressings on the punch surface, the insert will be damaged to a certain extent. Since the insert is movably installed on the punch, it is not necessary to replace the entire punch. Only the insert needs to be maintained, which reduces the difficulty and cost of mold maintenance.

[0015] 2. This utility model enables the simultaneous die-casting of four products by setting four mounting slots to install corresponding inserts and setting an injection channel to connect the four inserts.

[0016] 3. This utility model raises the insert by setting a pad, so that the protruding part of the insert can still cooperate with the die after the insert is lowered, without affecting the standard of the product after molding. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an electric water pump cover insert-type high-pressure die-casting molding mold structure according to an embodiment of this application.

[0018] Figure 2 This is a schematic diagram of the moving mold and mold core of the embodiment.

[0019] Figure 3 This is a schematic diagram of the structure of the cavity mold in the embodiment.

[0020] Figure 4 This is a schematic diagram of the punch structure in an embodiment.

[0021] Figure 5 yes Figure 4 An enlarged diagram of A in the diagram.

[0022] Figure 6This is a schematic diagram of the mounting groove on the punch in the embodiment.

[0023] Figure 7 This is a schematic diagram of the ejection mechanism in an embodiment.

[0024] Explanation of reference numerals in the attached drawings: 1. Fixed mold; 2. Moving mold; 3. Mold core; 31. Punch; 32. Die; 4. Molding cavity; 5. Injection cylinder; 6. Injection port; 7. Injection channel; 71. Main channel; 72. Sub-channel; 8. Mounting slot; 9. Insert; 10. Mounting pillar; 11. Backing plate; 12. Receiving cavity; 13. Slag bag; 14. Ejection mechanism; 141. Drive plate; 142. Ejection plate; 143. Ejection rod; 15. Guide pillar; 16. Limiting protrusion. Detailed Implementation

[0025] The following is in conjunction with the appendix Figures 1-7 This application will be described in further detail to make the technical solution of this application easier to understand and master.

[0026] This application discloses a high-pressure die-casting mold structure for an electric water pump cover insert.

[0027] Reference Figure 1 and Figure 2 The electric water pump cover insert type high pressure die casting mold structure of this embodiment includes a fixed mold 1 and a moving mold 2.

[0028] Reference Figure 3 and Figure 4 The mold core 3 is fixed on the fixed mold 1 (see Figure 2 The mold core 3 includes a punch 31 fixed to the moving mold 2 and a die 32 fixed to the punch 31. A forming cavity 4 is provided on the opposite side of the punch 31 and the die 32. The forming cavity 4 is used to form an electric water pump cover.

[0029] Reference Figure 5 and Figure 6 A sprue 5 is fixed on the moving mold 2, and a sprue 6 is provided on the sprue 5. A sprue channel 7 is provided on the punch 31, which connects the sprue 6 and the molding cavity 4. A mounting groove 8 is provided on the punch 31, and an insert 9 is installed in the mounting groove 8. The insert 9 is accommodated in the die 32 (see reference). Figure 3 The cavity 4 is formed by the mating of the die 32. The bottom of the mounting groove 8 is fixed with a mounting post 10, and the insert 9 is for the mounting post 10 to pass through and be installed in the mounting groove 8. The mounting post 10 is located at the four corners of the insert 9.

[0030] Reference Figure 5 and Figure 6The bottom of the mounting slot 8 is supported by a pad 11, and the bottom of the insert 9 rests against the pad 11. During mold maintenance, the insert 9 is removed for repair. Because the surface of the insert 9 is damaged after multiple die-casting processes, workers need to lower the surface. This requires raising the insert 9; typically, the insert 9 is thinned by 5 mm, and the pad 11 is 5 mm thick, thus raising the insert 9 to its original position. Maintaining the insert 9 increases the mold's service life.

[0031] Reference Figure 4 and Figure 5 There are four mounting slots 8, located at the four edges of the punch 31. The inserts 9 are installed in a one-to-one correspondence with the mounting slots 8. The injection channel 7 includes a main channel 71 and sub-channels 72. There are four sub-channels 72, which are distributed in pairs on both sides of the main channel 71. The main channel 71 is connected to the injection port 6, and the sub-channels 72 are connected to the main channel 71 and the molding cavity 4.

[0032] Reference Figure 5 and Figure 6 The punch 31 has a receiving cavity 12, and a slag bag 13 is installed in the receiving cavity 12. The slag bag 13 is connected to the insert 9.

[0033] Reference Figure 7 An ejection mechanism 14 is mounted on the fixed mold 1. The ejection mechanism 14 is used to eject the product. The ejection mechanism 14 includes an ejection cylinder (not shown in the figure), a drive plate 141, an ejection plate 142, and ejection rods 143. The ejection cylinder is fixed to the fixed mold 1, the ejection plate 142 is fixed to the drive plate 141, and several ejection rods 143 are fixed to the ejection plate 142. The ejection rods 143 are used to eject the product. A guide post 15 is fixed on the fixed mold 1. The guide post 15 passes through the drive plate 141 and the ejection plate 142. The ejection plate 142 moves towards or away from the moving mold 2. A limiting protrusion 16 is fixed on the guide post 15. The limiting protrusion 16 is spaced apart from the ejection plate 142 and is used to abut against the ejection plate 142.

[0034] Of course, the above are just typical examples of this application. In addition, this application may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed in this application.

Claims

1. A high-pressure die-casting mold structure for an electric water pump cover insert, comprising a fixed mold (1) and a moving mold (2), characterized in that: The fixed mold (1) is provided with a mold core (3), which includes a punch (31) on the moving mold (2) and a die (32) on the punch (31). A forming cavity (4) is provided on the opposite side of the punch (31) and the die (32). The moving mold (2) is provided with an injection cylinder (5), which has an injection port (6). The punch (31) has an injection channel (7), which connects the injection port (6) and the forming cavity (4). The punch (31) has an installation groove (8), which has an insert (9) inside the installation groove (8). The insert (9) is accommodated in the die (32) to form the forming cavity (4).

2. The electric water pump cover insert type high-pressure die-casting mold structure according to claim 1, characterized in that: The mounting groove (8) has a mounting post (10) at the bottom. The insert (9) is for the mounting post (10) to pass through and be installed in the mounting groove (8). The mounting post (10) is located at the four corners of the insert (9).

3. The electric water pump cover insert type high-pressure die-casting mold structure according to claim 2, characterized in that: The mounting groove (8) has a pad (11) at the bottom, and the bottom of the insert (9) abuts against the pad (11).

4. The electric water pump cover insert type high-pressure die-casting mold structure according to claim 1, characterized in that: The mounting slots (8) are provided in four places, and the four mounting slots (8) are located at the four edges of the punch (31). The inserts (9) are provided in a one-to-one correspondence with the mounting slots (8). The injection channel (7) includes a main channel (71) and a sub-channel (72). The sub-channels (72) are distributed in pairs on both sides of the main channel (71). The main channel (71) is connected to the injection port (6), and the sub-channels (72) are connected to the main channel (71) and the molding cavity (4).

5. The electric water pump cover insert type high-pressure die-casting mold structure according to claim 1, characterized in that: The punch (31) is provided with a receiving cavity (12), and a slag bag (13) is provided in the receiving cavity (12), and the slag bag (13) is connected to the insert (9).

6. The electric water pump cover insert type high-pressure die-casting mold structure according to claim 1, characterized in that: The fixed mold (1) is provided with an ejection mechanism (14), which is used to eject the product. The ejection mechanism (14) includes an ejection cylinder, a drive plate (141), an ejection plate (142), and ejection rods (143). The ejection cylinder is fixed on the fixed mold (1), the ejection plate (142) is fixed on the drive plate (141), and a plurality of ejection rods (143) are fixed on the ejection plate (142). The ejection rods (143) are used to eject the product.

7. The electric water pump cover insert type high-pressure die-casting mold structure according to claim 6, characterized in that: The fixed mold (1) is provided with a guide post (15), which passes through the drive plate (141) and the ejector plate (142). The ejector plate (142) moves toward or away from the moving mold (2). The guide post (15) is provided with a limiting protrusion (16), which is spaced apart from the ejector plate (142). The limiting protrusion is used to abut against the ejector plate (142).

Images