Anti-blocking die-casting die for hydraulic vacuum valve

Abstract

The hydraulic vacuum valve anti-blocking die-casting die is characterized in that a movable die body and a fixed die body are included, a product cavity is formed between the movable die body and the fixed die body, the movable die body comprises a female die core, and one side of the fixed die body is provided with a straight pouring gate, two transverse pouring gates, branch transverse pouring gates, a male die core, a cinder ladle, an air exhaust channel, a speed reduction slag discharging channel and a vacuum valve; each transverse pouring gate is connected with a plurality of branch transverse pouring gates, the branch transverse pouring gates are communicated with a product cavity through inner pouring gates distributed on one side of the movable mold, a plurality of cinder ladles are distributed on one side, far away from the inner pouring gates, of the product cavity, the cinder ladles are communicated with a speed reduction cinder discharge channel through an air exhaust channel, and the speed reduction cinder discharge channel is communicated with a vacuum valve. The device has the beneficial effects that unique flow dividing and speed reducing measures are adopted, the impurity speed is reduced, impurities are divided, the vacuumizing time is prolonged, and the blocking probability is reduced.

Description

Technical Field

[0001] The invention relates to the field of die-casting dies, and in particular to an anti-clogging die-casting die for a hydraulic vacuum valve. Background Art

[0002] High-pressure die casting is a precision molding process widely used in the automotive and communications fields. In the automotive field, aluminum alloys are rated as the preferred material for lightweight vehicles by automotive material engineers due to their many excellent properties and mature application technologies. At present, the main defect in the field of high-pressure casting is pores. To solve the pore defects, vacuuming is a commonly used technical means, but due to the particularity of the vacuum valve, it is often blocked. Summary of the invention

[0003] In view of the above-mentioned deficiencies in the prior art, the present invention provides a hydraulic vacuum valve anti-clogging die-casting mold, which effectively reduces the problem of vacuum valve clogging.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A hydraulic vacuum valve anti-clogging die-casting mold, characterized in that: a movable mold and a fixed mold, a product cavity is provided between the movable mold and the fixed mold, the movable mold includes a concave mold core, one side of the fixed mold has a straight runner, a cross runner, a branch cross runner, a convex mold core, a slag bag, an exhaust channel, a deceleration slag discharge channel, and a vacuum valve, the straight runner is connected to two of the cross runners, each of the cross runners is connected to a plurality of branch cross runners, the branch cross runners are connected to the product cavity through an inner gate distributed on one side of the movable mold, the slag bag is distributed on the side of the product cavity away from the inner gate, the number of the slag bags is multiple, and the multiple slag bags The bag is connected with the deceleration slag discharge channel through the exhaust channel, and the deceleration slag discharge channel is connected with the vacuum valve. The deceleration slag discharge channel includes a multi-stage deceleration slag collecting structure, and each stage of the slag collecting structure includes a slag collecting channel, a deceleration channel, and a diversion channel, wherein the slag collecting channel is directly opposite to the exhaust channel, and the diversion channel and the exhaust channel are arranged at a predetermined angle, and the deceleration channel is located between the slag collecting channel and the diversion channel. After the deceleration channel curve is extended, it is connected with the rear section of the diversion channel at a negative angle. The deceleration channel and the diversion channel constitute a Tesla valve structure, and the deceleration channel and the diversion channel are connected to the next stage of the deceleration slag collecting structure after merging.

[0006] Furthermore, two sets of vacuum valves are symmetrically arranged on the fixed mold, and the two vacuum valves are respectively connected to one of the deceleration and slag removal channels.

[0007] Furthermore, an impurity containing groove is provided at the end of the slag collecting channel.

[0008] Furthermore, the width of the deceleration and slag discharge channel is equivalent to the width of the air extraction channel, and the depth of the deceleration and slag discharge channel is greater than the depth of the air extraction channel.

[0009] The beneficial effects of the present invention include: adopting unique diversion and deceleration measures to reduce the speed of impurities, divert impurities, extend the vacuuming time and reduce the probability of blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the present invention;

[0011] Figure 2 It is a schematic diagram of the structure of the deceleration slag discharge channel of the present invention. DETAILED DESCRIPTION

[0012] The present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0013] A kind of Figure 1 The hydraulic vacuum valve anti-clogging die-casting mold shown in the figure has a movable mold and a fixed mold, and there is a product cavity between the movable mold and the fixed mold, wherein the movable mold has a concave mold core. One side of the fixed mold has a straight runner 1, a cross runner 2, a branch cross runner 3, a convex mold core 4, a slag bag 5, an exhaust channel 6, a deceleration slag discharge channel 7, and a vacuum valve 8. The straight runner 1 is located at the gate sleeve position on the fixed mold, and the straight runner 1 is connected to two cross runners 2, and the two cross runners 2 are arranged in an eight-shaped shape. Each cross runner 2 is connected to multiple branch cross runners 3, and multiple branch cross runners 3 are connected to the edge of the product cavity through the inner gate distributed on one side of the movable mold. The slag bag 5 is distributed on the side of the product cavity away from the inner gate. The number of slag bags 5 is multiple and distributed along the edge of the product cavity. Multiple slag bags 5 are connected to the deceleration slag discharge channel 7 through the exhaust channel 6, and the deceleration slag discharge channel 7 is then connected to the vacuum valve 8.

[0014] In this embodiment, two sets of vacuum valves 8 are symmetrically arranged, and the multiple mold cavities are vacuumed through the vacuuming system connected to the vacuum valves 8. The two vacuum valves 8 on the fixed mold are respectively connected to a deceleration slag discharge channel 6.

[0015] The deceleration slag discharge channel 7 includes a multi-stage deceleration slag collection structure, each stage of the slag collection structure includes a slag collection channel 71, a deceleration channel 72, and a diversion channel 73, wherein the slag collection channel 71 is directly connected to the exhaust channel 6, and the end of the slag collection channel 71 has an impurity receiving groove 74. The diversion channel 73 is arranged at a predetermined angle with the exhaust channel 6, and the deceleration channel 72 is located between the slag collection channel 71 and the diversion channel 73. The deceleration channel 72 curve is extended and connected to the rear section of the diversion channel 73 at a negative angle. The deceleration channel 72 and the diversion channel 73 form a Tesla valve structure. The deceleration channel 72 and the diversion channel 73 are connected to the next stage of the deceleration slag collection structure after converging.

[0016] The deceleration slag discharge channel 7 adopts a unique diversion structure, which can effectively reduce the speed of impurities, and can divert impurities, extend the vacuuming time and reduce the probability of blockage. Specifically, when the impurities and aluminum chips that were previously pumped by negative pressure and entered the cavity in advance with the airflow move to the improved deceleration slag discharge channel 7, the airflow is divided into two parts, in which the impurities rush forward with inertia, the slag collection channel 71 and then the impurities gather in the impurity holding groove 74, while the other part of the airflow moves with the arc of the deceleration channel 72, and after changing the angle, it meets the airflow of the other part of the diversion channel 73. Due to the opposite direction of movement, it plays a deceleration role, thus collecting and slowing down the speed of impurities and aluminum chips. After multiple times of this process, the speed and quantity of them reaching the mating surface are greatly reduced, which effectively reduces the probability of the vacuum valve being blocked.

[0017] In order to increase the slag collection and deceleration effect of the deceleration and slag discharge channel 7 , the width of the deceleration and slag discharge channel 7 is equivalent to the width of the exhaust channel 6 , and the depth of the deceleration and slag discharge channel 7 is greater than the depth of the exhaust channel 6 .

[0018] The technical solutions provided by the embodiments of the present invention are introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the embodiments of the present invention. The description of the above embodiments is only applicable to help understand the principles of the embodiments of the present invention. At the same time, for those skilled in the art, according to the embodiments of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A hydraulic vacuum valve anti-clogging die-casting mold, characterized in that: A movable mold and a fixed mold, wherein a product cavity is provided between the movable mold and the fixed mold, wherein the movable mold comprises a concave mold core, wherein one side of the fixed mold comprises a straight runner (1), a cross runner (2), a branch cross runner (3), a convex mold core (4), a slag bag (5), an exhaust channel (6), a deceleration slag discharge channel (7), and a vacuum valve (8), wherein the straight runner (1) is connected to two of the cross runners (2), each of the cross runners (2) is connected to a plurality of branch cross runners (3), and the branch cross runners (3) are connected to the product cavity via an inner gate distributed on one side of the movable mold, wherein the slag bag (5) is distributed on a side of the product cavity away from the inner gate, wherein the number of the slag bags (5) is multiple, and the plurality of slag bags (5) are connected to the deceleration slag discharge channel (7) via the exhaust channel (6) The deceleration slag discharge channel (7) is connected to the vacuum valve (8), the deceleration slag discharge channel (7) includes a multi-stage deceleration slag collection structure, each stage of the slag collection structure includes a slag collection channel (71), a deceleration channel (72), and a diversion channel (73), wherein the slag collection channel (71) is directly opposite to the exhaust channel (6), the diversion channel (73) and the exhaust channel (6) are arranged at a predetermined angle, the deceleration channel (72) is located between the slag collection channel (71) and the diversion channel (73), the deceleration channel (72) is connected to the rear section of the diversion channel (73) at a negative angle after the curve is extended, the deceleration channel (72) and the diversion channel (73) constitute a Tesla valve structure, and the deceleration channel (72) and the diversion channel (73) are connected to the next stage of the deceleration slag collection structure after merging.

2. The anti-clogging die-casting mold for hydraulic vacuum valve according to claim 1, characterized in that: Two sets of vacuum valves (8) are symmetrically arranged on the fixed mold, and the two vacuum valves (8) are respectively connected to one of the deceleration and slag discharge channels (6).

3. The anti-clogging die-casting mold for hydraulic vacuum valve according to claim 1, characterized in that: The end of the slag collecting channel (71) is provided with an impurity containing groove (74).

4. The anti-clogging die-casting mold for hydraulic vacuum valve according to claim 1, characterized in that: The width of the deceleration slag discharge channel (7) is equivalent to the width of the exhaust channel (6), and the depth of the deceleration slag discharge channel (7) is greater than the depth of the exhaust channel (6).

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