Automobile brake bottom plate die

Abstract

The utility model discloses an automobile brake bottom plate mold which comprises a sprue cup, a sprue is arranged at the lower end of the sprue cup, a filter screen is arranged between the sprue cup and the sprue, water inlet flow gates are arranged at the lower end of the sprue in a bilateral symmetry mode, and the two water inlet flow gates are directly connected with the side edges of two brake bottom plate castings respectively. The two brake bottom plate castings are symmetrically distributed on the left side and the right side of the sprue, the two brake bottom plate castings are arranged in a V shape, and the sides, close to the sprue cup, of the brake bottom plate castings are connected with risers through riser necks. According to the connection mode of the brake bottom plate casting and the dead head, the layout space of the whole mold can be reduced, and one mold with two pieces can be achieved under the condition that the mold space is limited; the filter screen and side pouring are adopted, a cross gate and a water inlet cross gate are not arranged, sand washing and slag hole forming are basically eradicated, and the product percent of pass is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile brake bottom plate production, specifically, relate to a kind of automobile brake bottom plate mould. BACKGROUND

[0002] Automobile brake bottom plate is the key part in brake bottom plate assembly, is the support part of fixed brake shoe assembly and brake drum in automobile brake, is the core of whole vehicle brake. Current process uses horizontal line to produce automobile brake bottom plate, production efficiency is low, it is not conducive to mass production, and because casting is uniform as a whole, heat node dispersion requires high casting feeding, needs two three risers, causing process yield to be low. Based on the above problems, the department applies patent "CN215544727U", discloses "a pouring system for improving the process yield of bottom plate, comprising: a pouring cup, the pouring cup is provided below the cross gate, the cross gate is connected with the cross gate pressure edge below, the cross gate pressure edge is provided below the straight gate, the cross gate pressure edge is vertically through with the straight gate, the straight gate is symmetrically provided with straight gate pressure edge at left and right of lower end, the straight gate is connected with the straight gate pressure edge, the straight gate pressure edge is horizontally through with the first layer cross gate, the first layer cross gate is connected with the second layer cross gate, the second layer cross gate is directly through with water inlet ingate, the water inlet ingate is directly connected with casting cavity, and the casting cavity is connected with riser through riser neck." But the two castings poured by it are vertically distributed, because the cross gate position interferes with the riser arranged on the outer side of horizontal direction, it is also provided with cross gate, then its size is larger in vertical height and horizontal width, the above structure cannot arrange two castings under the condition that the space size of mould is limited. SUMMARY

[0003] In view of the above technical problems in the related art, the utility model provides an automobile brake bottom plate mould, which can solve the above problems.

[0004] To achieve the above technical purposes, the technical scheme of the utility model is as follows:

[0005] An automobile brake bottom plate mould, comprising a pouring cup, a straight gate is arranged at the lower end of the pouring cup, a filter screen is arranged between the pouring cup and the straight gate, water inlet ingates are symmetrically arranged at the left and right of the lower end of the straight gate, two brake bottom plate castings are directly connected with the side edges of the two water inlet ingates respectively, the two brake bottom plate castings are symmetrically distributed on the left and right sides of the straight gate, the two brake bottom plate castings are arranged in V shape, and the brake bottom plate casting is connected with a riser through a riser neck on the side close to the pouring cup.

[0006] Further, the cross section of the straight gate is trapezoidal.

[0007] Furthermore, the angle between the long axis of the brake base plate casting and the sprue is ɑ, and ɑ is 30°.

[0008] The beneficial effects of the present invention are as follows: the connection method between the brake base plate casting and the riser in the present application can reduce the layout space of the entire mold, which is conducive to achieving two pieces in one mold when the mold space is limited; the present application adopts a filter mesh plus side pouring, and does not set a cross runner and a water inlet cross runner, which basically eliminates sand blasting and the formation of slag eyes, and improves the product qualification rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0010] The utility model is described in further detail below with reference to the accompanying drawings.

[0011] Figure 1 It is a structural schematic diagram of an automobile brake base plate mold described in an embodiment of the utility model.

[0012] In the picture:

[0013] 1. Sprue cup; 2. Filter screen; 3. Sprue; 4. Ingate; 5. Brake base plate casting; 6. Riser neck; 7. Riser. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present invention.

[0015] like Figure 1 As shown, according to the utility model, a mold for an automobile brake base plate is disclosed, comprising a pouring cup 1, a sprue 3 being provided at the lower end of the pouring cup 1, a filter screen 2 being provided between the pouring cup 1 and the sprue 3, a water inlet lining gate 4 being symmetrically provided at the lower end of the sprue 3, the two water inlet lining gates 4 being directly connected to the sides of two brake base plate castings 5 ​​respectively, the two brake base plate castings 5 ​​being symmetrically distributed on the left and right sides of the sprue 3, the two brake base plate castings 5 ​​being arranged in a V shape, and the side of the brake base plate casting 5 close to the pouring cup 1 is connected to the riser 7 through the riser neck 6.

[0016] Embodiment one:

[0017] The angle between the long axis of the brake bottom plate casting 5 and the sprue 3 is 30°, so that the two brake bottom plate castings 5 are arranged at an angle of 30° relative to the sprue 3, the vertical height size can be reduced, and the two brake bottom plate castings 5 are arranged at an angle, so that the upper ends of the two brake bottom plate castings 5 form an angle space with the pouring cup 1, the riser 7 is arranged in the angle space, the size occupied by the horizontal width can be reduced, thereby reducing the layout space of the entire mold, and it is beneficial to realize one mold two pieces in the case that the mold space is limited.

[0018] Embodiment two:

[0019] In the application, the filter screen is added to the side injection, there is no cross gate and water inlet cross gate, the formation of sand washing and slag eye is basically eliminated, the product qualified rate is improved, and the process yield can reach more than 70%.

[0020] The above only describes the preferred embodiments of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A mold for an automotive brake backing plate comprising a sprue cup (1), characterized in that, The lower end of the sprue cup (1) is provided with a straight runner (3), a filter screen (2) is arranged between the sprue cup (1) and the straight runner (3), the lower end of the straight runner (3) is provided with water inlet inner gates (4) which are symmetrical left and right, two water inlet inner gates (4) are directly connected with the side edges of two brake bottom plate castings (5) respectively, two brake bottom plate castings (5) are symmetrically distributed on the left and right sides of the straight runner (3), two brake bottom plate castings (5) are arranged in V shape, and the side of the brake bottom plate casting (5) close to the sprue cup (1) is connected with a riser (7) through a riser neck (6).

2. The automotive brake floor mold according to claim 1, wherein, The cross section of the straight runner (3) is trapezoidal.

3. The automotive brake floor mold of claim 1, wherein, The angle between the long axis of the brake bottom plate casting (5) and the straight runner (3) is α, and the α is 30°.

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