Rear end cover die-casting die

Abstract

The utility model relates to the technical field of die-casting dies, and discloses a rear end cover die-casting die which comprises an upper fixing plate and a lower fixing plate, an upper die is arranged in the upper fixing plate, a lower die is arranged in the lower fixing plate, the upper die and the lower die are distributed oppositely, the upper die and the lower die are used for forming a die-casting cavity, and the die-casting cavity is provided with a die-casting cavity. A plurality of exhaust grooves are formed in the lower fixing plate and distributed in one side of the die-casting cavity at intervals. One end of the exhaust groove is communicated with the die-casting cavity, the other end of the exhaust groove extends towards the edge of the lower fixing plate, a residue storage groove is formed in the end, close to the die-casting cavity, of the exhaust groove, and the residue storage groove is used for containing residues in the die-casting cavity. The die-casting residue cleaning device has the advantage of being good in die-casting residue cleaning effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to die casting die technical field, concretely relates to a rear end cover die casting die. BACKGROUND

[0002] With the continuous development of industrial production, metal parts are widely used in industrial production due to their high strength, easy forming and other characteristics, such as end cover and other parts usually use the way of die casting to press the metal melt into a complex shape of metal mold, the prior art is generally using die casting machine to cooperate with die casting die to cast and press, the die casting machine completes the opening and closing of the mold and the injection of the metal melt, the metal melt is cooled and formed in the mold to form a predetermined shape, thereby completing the manufacturing of the part.

[0003] For example, the patent document with the announcement number CN115488315A discloses an automobile engine end cover die casting device and die casting method, which comprises an upper mold, a feeding pipe, an upper pressing column, a top cover and a lower mold, the top of the upper mold is fixedly installed with the feeding pipe, the top of the feeding pipe is provided with the top cover, and the two sides of the bottom of the top cover are provided with the upper pressing column, and the bottom of the upper pressing column is arranged on the top of the upper mold. After die casting, the heat absorption function of the bottom of the lower mold is realized by using the heat conduction plate and the heat conduction pad, the heat of the die casting part is transferred to the heat conduction plate, and then the cooling pipe and the cooling base are used to cooperate with each other to make the cooling liquid further adsorb the heat, so as to realize the heat conversion function, facilitate the heat dissipation of the die casting part, solve the problem that the workpiece is easy to produce high temperature during machining, and is not convenient for the workers to take, and is conducive to the rapid cooling of the device and the convenient taking of the die casting part.

[0004] The above technical scheme can realize the rapid heat dissipation and cooling of the end cover after die casting, and facilitate the taking of the die casting end cover, but during the die casting process of the end cover, impurities or small particles that are not completely formed after the raw material forming are usually left in the mold, which causes the subsequent die casting end cover to be prone to defects and flaws under the influence of impurities, affecting the quality of the die casting end cover. And an exhaust hole is usually provided in the mold to ensure that the gas in the mold can be discharged to balance the pressure in the mold, so that the raw material can be fully filled in the mold, but when there are many impurities in the mold, the impurities are easy to move to the exhaust hole under the action of pressure, causing the impurities to accumulate at the exhaust hole, which may cause the exhaust hole to be blocked, affecting the normal die casting work of the mold on the end cover. UTILITY MODEL CONTENTS

[0005] The utility model intends to provide a rear end cover die casting die to solve the technical problem that the impurities left in the mold affect the die casting process of the end cover.

[0006] To achieve the above object, the utility model discloses the following technical scheme: a rear end cover die casting die, including upper fixed plate and lower fixed plate, the upper fixed plate is equipped with upper mould, the lower fixed plate is equipped with lower mould, the upper mould with The lower mould is distributed towards, the upper mould with The lower mould is used for forming die casting cavity, be equipped with a plurality of exhaust grooves on the lower fixed plate, and a plurality of exhaust grooves are distributed at intervals on one side of the die casting cavity, one end of the exhaust groove is communicated with the die casting cavity, and the other end extends to the edge of the lower fixed plate, and one end of the exhaust groove close to the die casting cavity is equipped with a residue groove, and the residue groove is used to accommodate the residue in the die casting cavity.

[0007] The principle and advantages of the present scheme are as follows: when the cylinder head is die casting, the upper mould and the lower mould are folded to form a closed die casting cavity between the upper mould and the lower mould, and then the metal melt raw material required for die casting is injected into the mould. The metal melt raw material flows into the die casting cavity between the lower mould and the upper mould under the action of pressure. In the process of flowing, the metal melt pushes the air and residue in the die casting cavity to move to the exhaust groove. The air in the die casting cavity is discharged through the exhaust groove, and the residue enters the residue groove for storage.

[0008] In the present scheme, the residue groove is arranged on the exhaust groove around the die casting cavity. During pouring, the residue in the die casting cavity can move to the exhaust groove under the action of pressure and fall into the residue groove for temporary storage, so that the residue in the die casting cavity can be stored centrally, the residue is prevented from being located at the position of the end cover structure to affect the effect of end cover die casting, and the die casting production quality of the end cover is ensured. In addition, each residue groove is arranged at one end of the exhaust groove close to the die casting cavity, so that the residue moving in the direction of the exhaust groove can fall into the residue groove, the residue is prevented from entering the exhaust groove to cause blockage of the exhaust groove, affect the normal exhaust function of the exhaust groove, affect the pressure balance in the die casting process, and affect the die casting effect of the end cover.

[0009] Preferably, as an improvement, one side of the die casting cavity is provided with a feeding pipe, one end of the feeding pipe is communicated with one side of the die casting cavity, and a plurality of exhaust grooves are distributed at intervals on the side of the die casting cavity away from the feeding pipe. The air and residue in the die casting cavity can move in the direction of the exhaust groove under the action of pressure during feeding, so as to ensure the pressure balance in the die casting cavity, ensure the full filling of the raw material during die casting, and facilitate the directional collection of the residue.

[0010] Preferably, as an improvement, the top of the residue groove is communicated with the exhaust groove, the bottom of the residue groove extends into the lower fixed plate in the height direction, and the depth of the residue groove is greater than the depth of the exhaust groove. After the residue falls into the residue port, it can be accommodated in the residue groove, and the residue is prevented from moving into the exhaust groove.

[0011] Preferably, as an improvement, the bottom of the residue storage tank is provided with a residue pushing rod, one end of the residue pushing rod penetrates the bottom of the residue storage tank, and the residue pushing rod can move up and down along the depth direction of the residue storage tank. The residue stored in the residue storage tank can be pushed out under the action of the residue pushing rod, facilitating the cleaning of the residue storage tank.

[0012] Preferably, as an improvement, the end of the residue pushing rod away from the residue storage tank is provided with a residue pushing plate for pushing the residue pushing rod to move. By pushing each residue pushing rod to move through the residue pushing plate, the synchronization control of multiple residue pushing rods is facilitated, and the efficiency of residue cleaning in the residue storage tank is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structure schematic diagram of the die casting mold of the rear end cover in the embodiment of the utility model.

[0014] Figure 2 It is a structure schematic diagram of the upper fixed plate in the embodiment of the utility model.

[0015] Figure 3 It is a structure schematic diagram of the lower fixed plate in the embodiment of the utility model. DETAILED DESCRIPTION

[0016] The following will be further described in detail through specific embodiments:

[0017] The reference signs in the drawings of the specification include: the upper fixed plate 1, the upper die 101, the upper fixed groove 102, the lower fixed plate 2, the lower die 201, the exhaust groove 202, the residue storage tank 203, the residue pushing rod 204, the residue pushing plate 205, the connecting plate 3, the lower fixed groove 301, the connecting column 4, and the feeding pipe 5.

[0018] As shown in the drawings, Figure 1 A die casting mold of a rear end cover includes an upper fixed plate 1 and a lower fixed plate 2, an upper die 101 is arranged in the upper fixed plate 1, a lower die 201 is arranged in the lower fixed plate 2, and a die casting cavity for die casting processing is arranged between the upper die 101 and the lower die 201.

[0019] The upper fixed plate 1 and the lower fixed plate 2 are stacked and distributed, wherein the upper die 101 is embedded on the opposite surface of the upper fixed plate 1 and the lower fixed plate 2, and the upper die 101 is fixedly connected with the upper fixed plate 1 by means of bolts or welding; the lower die 201 is embedded on the opposite surface of the lower fixed plate 2 and the upper fixed plate 1, and the positions of the upper die 101 and the lower die 201 correspond to each other, wherein the specific structures of the upper die 101 and the lower die 201 match the shape of the die casting end cover, and the specific contents of the upper die 101 and the lower die 201 are prior art, which will not be described here.

[0020] As shown in the drawings, Figure 2As shown, the upper fixed plate 1 is used to fix the position of the upper die 101. Upper fixed slots 102 are provided on both sides of the upper fixed plate 1, the upper fixed slots 102 are distributed in parallel on both sides of the upper fixed plate 1, and the upper fixed slots 102 penetrate through both sides of the upper fixed plate 1 along the width direction perpendicular to the upper fixed plate 1, and the upper fixed slots 102 are used for clamping connection with external equipment. The connecting plate 3 is provided on the side of the lower fixed plate 2 away from the lower die 201, and the connecting plate 3 is fixedly connected with the lower fixed plate 2 by bolts, and the lower fixed slots 301 are provided on the side of the connecting plate 3, and the lower fixed slots 301 penetrate through both sides of the connecting plate 3 along the height direction perpendicular to the connecting plate 3. The connecting plate 3 is provided with two connecting plates 3, and the two connecting plates 3 are distributed in parallel on both sides of the bottom of the lower fixed slots 301, and the lower fixed slots 301 are on the opposite sides of the connecting plate 3; the connecting plate 3 is used for clamping connection with external equipment through the lower fixed slots 301.

[0021] A plurality of connecting columns 4 are provided between the upper fixed plate 1 and the lower fixed plate 2, and the plurality of connecting columns 4 are uniformly distributed along the circumferential direction of the lower fixed plate 2 on the opposite surfaces of the upper fixed plate 1 and the lower fixed plate 2, and the connecting columns 4 are distributed at intervals between the upper fixed plate 1 and the upper die 101. One end of the connecting column 4 is clamped and connected with the upper fixed plate 1, and the other end extends outwardly away from the upper fixed plate 1. The connecting holes are provided on the lower fixed plate 2 and the corresponding positions of each connecting column 4, and the connecting column 4 can be provided in the connecting hole, and the upper fixed plate 1 and the lower fixed plate 2 are connected through the connecting column 4 and the connecting hole. When the upper die 101 and the lower die 201 are connected or separated, they can be guided under the action of the connecting column 4, and the accuracy of the connection between the upper die 101 and the lower die 201 is ensured.

[0022] A feeding pipe 5 is provided on one side of the lower die 201 and the upper die 101, one end of the feeding pipe 5 is communicated with the die cavity, the other end extends upwardly perpendicular to the plane where the lower die 201 is located, and the end of the feeding pipe 5 away from the lower die 201 penetrates through the upper fixed plate 1, and the feeding pipe 5 is used for conveying metal melt raw materials into the die cavity.

[0023] As shown in the accompanying drawings, Figure 3 A plurality of exhaust slots 202 are provided on the lower fixed plate 2, and the plurality of exhaust slots 202 are distributed at intervals on the side of the lower die 201 away from the feeding pipe 5. One end of the exhaust slot 202 is communicated with the die cavity between the upper die 101 and the lower die 201, and the other end extends to the edge of the lower fixed plate 2, and the exhaust slot 202 is used for exhausting the gas in the die cavity during the die casting process, wherein the specific structure of the exhaust slot 202 is the prior art, and will not be described here.

[0024] A plurality of residue storage grooves 203 are formed in the lower fixed plate 2, and the plurality of residue storage grooves 203 are distributed correspondingly to the exhaust grooves 202 on the lower fixed plate 2, wherein the residue storage groove 203 is located at one end of the exhaust groove 202 close to the lower mold 201, the top of the residue storage groove 203 is communicated with the exhaust groove 202, the bottom of the residue storage groove 203 extends to the inside of the lower fixed plate 2 along the height direction, and the depth of the residue storage groove 203 is greater than the depth of the exhaust groove 202, and the residue storage groove 203 is used for accommodating the residue transported to the exhaust groove 202.

[0025] A residue ejection rod 204 is arranged at the bottom of each residue storage groove 203, one end of the residue ejection rod 204 penetrates the bottom of the residue storage groove 203, and the other end extends away from the residue storage groove 203 along the depth direction of the residue storage groove 203; the residue ejection rod 204 can move up and down along the depth direction of the residue storage groove 203, and the residue ejection rod 204 is used for ejecting the residue in the residue storage groove 203, specifically, the end of the residue ejection rod 204 away from the residue storage groove 203 can be connected with a residue ejection plate 205, and the residue ejection plate 205 can be driven by an external power member (such as a motor, an oil cylinder, etc.) to move up and down along the height direction, so as to realize the movement of the residue ejection rod 204, wherein the specific structure for driving the residue ejection rod 204 to move up and down is a prior art, and will not be described here. The residue stored in the residue storage groove 203 can be ejected under the action of the residue ejection rod 204, so as to facilitate the cleaning of the residue storage groove 203.

[0026] The specific implementation process is as follows:

[0027] When the cylinder cover is pressure cast, the upper mold 101 and the lower mold 201 are closed to form a closed pressure casting cavity between the upper mold 101 and the lower mold 201, then the metal melt raw material required for pressure casting is injected into the mold, and under the action of pressure, the metal melt raw material flows into the pressure casting cavity between the lower mold 201 and the upper mold 101, wherein in the flowing process, the air and residue in the pressure casting cavity are pushed to move to the exhaust groove 202, wherein the air in the pressure casting cavity is discharged through the exhaust groove 202, and the residue enters the residue storage groove 203 for storage.

[0028] Compared with the prior art, in the present scheme, the residue storage groove 203 is arranged on the circumferential exhaust groove 202 of the pressure casting cavity, so that during the pouring process, the residue in the pressure casting cavity can move to the exhaust groove 202 under the action of pressure and fall into the residue storage groove 203 for temporary storage, which ensures that the residue in the pressure casting cavity can be stored centrally, avoids that the residue is located at the position of the end cover structure, affects the effect of the end cover pressure casting, and ensures the pressure casting production quality of the end cover. Furthermore, the residue storage groove 203 is arranged at one end of the exhaust groove 202 close to the pressure casting cavity, so that the residue moving to the exhaust groove 202 direction can fall into the residue storage groove 203, avoiding that the residue enters the exhaust groove 202, causing the exhaust groove 202 to be blocked, affecting the normal exhaust function of the exhaust groove 202, affecting the pressure balance in the pressure casting process, and affecting the pressure casting effect of the end cover.

[0029] It should be noted that, for those skilled in the art, without departing from the technical scheme of the utility model, a number of modifications and improvements can also be made, which should also be considered as the protection scope of the utility model, which will not affect the effect and practicality of the utility model. The protection scope claimed in the present application shall be subject to the content of its claims, and the specific implementation mode and the like recorded in the specification can be used to explain the content of the claims.

Claims

1. A die-casting mold for a rear end cap, comprising an upper fixed plate and a lower fixed plate, wherein an upper mold is disposed within the upper fixed plate, and a lower mold is disposed within the lower fixed plate, the upper mold and the lower mold being distributed facing each other, and the upper mold and the lower mold forming a die-casting cavity, characterized in that: The lower fixing plate is provided with multiple venting grooves, which are spaced apart on one side of the die-casting cavity; One end of the venting groove is connected to the die-casting cavity, and the other end extends toward the edge of the lower fixed plate. A slag storage groove is provided at the end of the venting groove near the die-casting cavity, and the slag storage groove is used to contain the residue in the die-casting cavity.

2. The die-casting mold for a rear end cap according to claim 1, characterized in that: A feed pipe is provided on one side of the die-casting cavity, and one end of the feed pipe is connected to one side of the die-casting cavity; multiple venting grooves are distributed at intervals on the side of the die-casting cavity away from the feed pipe.

3. The die-casting mold for a rear end cap according to claim 1, characterized in that: The top of the slag storage tank is connected to the exhaust tank, the bottom of the slag storage tank extends downward into the fixed plate along the height direction, and the depth of the slag storage tank is greater than the depth of the exhaust tank.

4. The die-casting mold for a rear end cap according to claim 3, characterized in that: The bottom of the slag storage tank is provided with a slag-topping rod, one end of which penetrates through the bottom of the slag storage tank. The slag-topping rod can move up and down along the depth direction of the slag storage tank.

5. The rear end cap die-casting mold according to claim 4, characterized in that: The top slag rod is provided with a top slag plate at the end away from the slag storage tank, and the top slag plate is used to push the top slag rod to move.

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