CN216938363U

CN216938363U - Automobile die-casting die demoulding device

Info

Publication number: CN216938363U
Application number: CN202123255578.6U
Authority: CN
Inventors: 罗奇明; 彭澳
Original assignee: Suzhou Fuenqi Precision Mould Co ltd
Current assignee: Suzhou Fuenqi Precision Mould Co ltd
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-07-12
Anticipated expiration: 2031-12-20

Abstract

The utility model provides a demoulding device for an automobile die-casting die. Car die casting die shedder includes: the fixed die is installed above the bottom plate, a cavity is formed in the top of the fixed die, four side push plates are arranged on the side face of the cavity, a plurality of ejector rods are arranged at the bottom of the cavity, ejector blocks are installed at the tops of the ejector rods, an installation cavity is formed in the fixed die, a top plate is installed in the installation cavity, the top plate is connected with the ejector rods and the side push plates, a hydraulic cylinder is installed on the bottom plate, and the hydraulic cylinder is connected with the top plate. According to the demoulding device for the automobile die-casting die, the ejector rod for mounting the ejector block and the four side push plates are arranged in the die cavity, so that the lifting force and the supporting force can be provided for the bottom and the side of a product in the die cavity at the same time, demoulding is facilitated, surface damage of the product is reduced, and demoulding stability is improved.

Description

Automobile die-casting die demoulding device

Technical Field

The utility model relates to the technical field of dies, in particular to a demoulding device of an automobile die-casting die.

Background

Die casting is a metal casting process and is characterized in that high pressure is applied to molten metal by utilizing an inner cavity of a die. The mold is typically machined from a stronger alloy, a process somewhat similar to injection molding. Most die cast parts are non-ferrous, such as zinc, copper, aluminum, magnesium, lead, tin, and lead-tin alloys and their alloys. Depending on the type of die casting, either a cold chamber die casting machine or a hot chamber die casting machine may be used. The demolding component is an important component in the die-casting die and is directly related to the quality of a product.

The existing demoulding of gear box shell products generally uses ejector pins to eject the product out of a cavity from the bottom of a fixed die, the side surface of the product lacks demoulding measures, the side surface of the product is adhered, the demoulding is inconvenient, the dead weight of the gear box is heavy, and the gear box is supported only by the bottom, so that the demoulding stability is poor.

Therefore, it is necessary to provide a demolding device for an automobile die-casting mold to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide the demoulding device for the automobile die-casting mould, which can be used for conveniently demoulding and improving the demoulding stability.

In order to solve the technical problem, the utility model provides a demoulding device of an automobile die-casting mould, which comprises: the fixed die is mounted above the bottom plate, the die cavity is formed in the top of the fixed die, four side push plates are arranged on the side face of the die cavity, a plurality of ejector rods are arranged at the bottom of the die cavity, an ejector block is mounted at the top of the ejector rods, a mounting cavity is formed in the fixed die, a top plate is mounted in the mounting cavity, the top plate is connected with the ejector rods and the side push plates, a hydraulic cylinder is mounted on the bottom plate, and the hydraulic cylinder is connected with the top plate.

Preferably, rotate on the roof and install the connecting rod, side push pedal side-mounting fixed block, the fixed block with install the set-square between the connecting rod, the below of set-square is equipped with the mounting groove, the mounting groove is seted up on the cover half, install the slide bar in the mounting groove, the top of slide bar with the set-square is connected, install first spring on the slide bar, the draw-in groove has been seted up to one side of die cavity, the draw-in groove with side push pedal adaptation, the strengthening rib is installed to the fixed block bottom.

Preferably, the bottom of the clamping groove is provided with an inclined surface.

Preferably, the bottom of roof installs the sleeve, the sleeve runs through the cover half, installation apical axis and second spring in the sleeve, the apical axis is with the output shaft of pneumatic cylinder.

Preferably, the top block is of an inverted boss structure, a counter bore is formed in the bottom of the die cavity, and the counter bore is matched with the top block.

Compared with the prior art, the automobile die-casting die demoulding device provided by the utility model has the following beneficial effects:

(1) the ejector rod and the four side push plates are arranged in the cavity, so that the lifting force and the supporting force can be provided for the bottom and the side of a product in the cavity simultaneously, the surface damage of the product is reduced when the demoulding is convenient, and the demoulding stability is improved.

(2) The side push plate can convert part of the lifting force of the top plate into side pressure of a product by arranging the connecting rod, the triangular plate, the fixing block, the sliding rod and the first spring, so that the side push plate can provide certain lifting force for the product and is convenient for the product to be separated from the side wall of the cavity.

(3) Through setting up the inclined plane, make things convenient for the side push pedal to reset, prevent that the side push pedal from protruding the die cavity in, improving product quality.

(4) Through setting up sleeve, apical axis and second spring, the second spring can play the cushioning effect, and is too big to the impact force of product when preventing that the pneumatic cylinder from starting, causes product surface damage, has promoted the product quality to a certain extent.

(5) The top block with the inverted boss structure and the counter bore matched with the top block can be effectively prevented from being clamped at the edge of the counter bore, and the top block is convenient to reset.

Drawings

FIG. 1 is a schematic structural diagram of an automotive die-casting mold demolding device provided by the utility model;

FIG. 2 is a schematic cross-sectional view of the release device for the die-casting mold of the automobile shown in FIG. 1;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is an enlarged view of portion B of FIG. 2;

fig. 5 is an enlarged view of a portion C in fig. 2.

Reference numbers in the figures: 1. the device comprises a bottom plate, 2, a fixed die, 3, a cavity, 4, a side push plate, 5, a push rod, 6, a push block, 7, a top plate, 8, a hydraulic cylinder, 9, a connecting rod, 10, a triangular plate, 11, a fixed block, 12, a sliding rod, 13, a mounting groove, 14, a first spring, 15, a clamping groove, 16, an inclined plane, 17, a reinforcing rib, 18, a sleeve, 19, a top shaft, 20, a second spring, 21 and a counter bore.

Detailed Description

The utility model is further described below with reference to the drawings and the embodiments.

Example 1:

referring to fig. 1-5, in an embodiment of the present invention, an apparatus for demolding an automobile die casting mold includes: the fixed die comprises a bottom plate 1 and a fixed die 2, wherein the fixed die 2 is arranged above the bottom plate 1, a cavity 3 is arranged at the top of the fixed die 2, four side push plates 4 are arranged on the side surfaces of the cavity 3, the number and the positions of the side push plates 4 can be set according to actual needs, a plurality of ejector rods 5 are arranged at the bottom of the cavity 3, ejector blocks 6 are arranged at the tops of the ejector rods 5, the contact area between the ejector rods 5 and a product is increased by the ejector blocks 6, the surface of the product is prevented from being damaged by the ejector rods 5, an installation cavity 22 is formed in the fixed die 2, a top plate 7 is arranged in the installation cavity 22, the top plate 7 is connected with the ejector rods 5 and the side push plates 4, a hydraulic cylinder 8 is arranged on the bottom plate 1, the hydraulic cylinder 8 is connected with the top plate 7, the hydraulic cylinder 8 is started to push the top plate 7 to ascend, the top plate 7 ascends to drive the ejector blocks 6 at the top ends of the ejector rods 5 to eject the product in the cavity 3, and meanwhile, the top plate 7 ascends to enable the side push plates 4 to move towards the center of the cavity 3, the friction force between the side push plate 4 and the product is increased, and the side push plate 4 provides a certain lifting force from the side of the product to help the product to be demoulded and simultaneously provides lateral support for the product.

Through ejector pin 5 and four side push plates 4 of setting up installation kicking block 6 in die cavity 3, can provide lift force and holding power simultaneously to the product bottom in the die cavity 3 and side, when making things convenient for the drawing of patterns, reduce product surface damage, improve drawing of patterns stability.

Example 2:

as shown in fig. 2-3, a connecting rod 9 is rotatably mounted on the top plate 7, a fixing block 11 is mounted on one side of the side push plate 4, a triangular plate 10 is mounted between the fixing block 11 and the connecting rod 9, a mounting groove 13 is formed below the triangular plate 10, the mounting groove 13 is formed in the fixed die 2, a sliding rod 12 is mounted in the mounting groove 13, the top end of the sliding rod 12 is connected with the triangular plate 10, a first spring 14 is mounted on the sliding rod 12, a clamping groove 15 is formed in one side of the cavity 3, the clamping groove 15 is matched with the side push plate 4, a reinforcing rib 17 is mounted at the bottom of the fixing block 11, the reinforcing rib 17 is used for enhancing the connection strength between the fixing block 11 and the side push plate 4, during demolding, the top plate 7 drives the connecting rod 9 to rise and is limited by the acting force of the first spring 14, so that the sliding rod 12 does not move at first, and the connecting rod 9 can rotate the triangular plate 10 by itself by a certain angle when the connecting rod 9 pushes the rotating, thereby make side push pedal 4 to the 3 center removal certain distance of die cavity (being less than 0.2mm), thereby pressure (also increase frictional force between the two) between increase side push pedal 4 and the product, make product and 3 lateral walls separation of die cavity, connecting rod 9 continues to rise, drives slide bar 12 and rises and compress first spring 14, and side push pedal 4 also follows to rise and makes side push pedal edgewise apply the lift to the product, thereby help the product to rise the drawing of patterns.

Through setting up connecting rod 9, set-square 10, fixed block 11, slide bar 12 and first spring 14, can turn into the lateral pressure to the product with some of the lift of roof 7, make side push plate 4 can provide certain lift to the product when, make things convenient for the product to separate with the lateral wall of die cavity 3.

Example 3:

as shown in fig. 2-3, the bottom of the clamping groove 15 is provided with an inclined surface 16, when the side push plate 4 descends, the bottom of the side push plate 4 moves outwards along the inclined surface 16, so that one surface of the side push plate 4 is tightly attached to the side wall of the clamping groove 15, and the other surface of the side push plate 4 is flush with the inner wall of the cavity 3, and the quality of the next die-casting product cannot be affected by the side push plate 4.

Through setting up inclined plane 16, make things convenient for side push pedal 4 to reset, prevent in the protruding die cavity 3 of side push pedal 4, improve product quality.

Example 4:

as shown in fig. 4, a sleeve 18 is installed at the bottom of the top plate 7, the sleeve 18 penetrates through the fixed die 2, an ejector shaft 19 and a second spring 20 are installed in the sleeve 18, the ejector shaft 19 is connected with an output shaft of the hydraulic cylinder 8, the ejector shaft 19 slides in the sleeve 18 to lift, and the impact force on a product when the hydraulic cylinder 8 is started is prevented from being too large through the buffering effect of the second spring 20, so that the surface of the product is prevented from being damaged.

Through setting up sleeve 18, apical axis 19 and second spring 20, second spring 20 can play the cushioning effect, prevents that pneumatic cylinder 8 from too big to the impact force of product when starting, causes product surface damage, has promoted the product quality to a certain extent.

Example 5:

as shown in fig. 2 and 5, the top block 6 is of an inverted boss structure, a counter bore 21 is formed in the bottom of the cavity 3, the counter bore 21 is matched with the top block 6, and when the top block 6 is lowered and reset, the top block 6 of the inverted boss structure can more easily enter the counter bore 21, so that the top block 6 is effectively prevented from being clamped at the edge of the counter bore 21, and the top block 6 is convenient to reset.

Through the ejector block 6 with the inverted boss structure and the counter bore 21 matched with the ejector block, the ejector block 6 can be effectively prevented from being clamped at the edge of the counter bore 21, and the ejector block 6 is convenient to reset.

The working principle of the demoulding device for the automobile die-casting die provided by the utility model is as follows:

firstly, the die-casting product is formed in the cavity 3, during demolding, the hydraulic cylinder 8 is started to enable the top shaft 19 to ascend, the top shaft 19 ascends to push the top plate 7 to ascend through the second spring 20, the top plate 7 ascends to drive the top block 6 at the top end of the ejector rod 5 to apply lifting force to the bottom of a product in the cavity 3, meanwhile, the top plate 7 ascends to drive the connecting rod 9 to ascend, the connecting rod 9 ascends to drive the triangular plate 10 to rotate to apply inward force to the side push plate 4, the side push plate 4 is enabled to press the product to enable the product to be separated from the inner wall of the cavity 3, the top plate 7 continuously ascends to enable the triangular plate 10 to ascend and drive the side push plate 4 and the sliding rod 12 to ascend and compress the first spring 14, the lifting force is provided while the product is supported from the bottom and the side, the product is enabled to be more stable during demolding, and demolding is convenient.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides an automobile die casting die shedder which characterized in that includes:

the fixed die is mounted above the bottom plate, the die cavity is formed in the top of the fixed die, four side push plates are arranged on the side face of the die cavity, a plurality of ejector rods are arranged at the bottom of the die cavity, an ejector block is mounted at the top of the ejector rods, a mounting cavity is formed in the fixed die, a top plate is mounted in the mounting cavity, the top plate is connected with the ejector rods and the side push plates, a hydraulic cylinder is mounted on the bottom plate, and the hydraulic cylinder is connected with the top plate.

2. The automobile die-casting die demoulding device as claimed in claim 1, wherein a connecting rod is rotatably mounted on the top plate, a fixed block is mounted on one side of the side push plate, a triangular plate is mounted between the fixed block and the connecting rod, a mounting groove is formed below the triangular plate, the mounting groove is formed in the fixed die, a sliding rod is mounted in the mounting groove, the top end of the sliding rod is connected with the triangular plate, a first spring is mounted on the sliding rod, a clamping groove is formed in one side of the cavity, the clamping groove is matched with the side push plate, and a reinforcing rib is mounted at the bottom of the fixed block.

3. The automobile die-casting die demolding device as claimed in claim 2, wherein the bottom of the clamping groove is provided with an inclined surface.

4. The automobile die-casting die demolding device as claimed in claim 1, wherein a sleeve is mounted at the bottom of the top plate, the sleeve penetrates through the fixed die, a top shaft and a second spring are mounted in the sleeve, and the top shaft is connected with an output shaft of a hydraulic cylinder.

5. The automobile die-casting die demoulding device as claimed in claim 1, wherein the top block is of an inverted boss structure, a counter bore is formed in the bottom of the die cavity, and the counter bore is matched with the top block.