Die-casting die for thin-wall product

Abstract

The utility model provides a thin-wall product die-casting die which comprises a pushing device, a sliding block, a front die, a rear die, a front die core, a rear die core, an ejection block and a spring, a die-casting cavity is formed between the front die core and the rear die core, the rear die core is embedded in the face, facing the front die, of the rear die, and the ejection block is embedded in the rear die. A sliding hole communicated with the die-casting cavity and the front die is formed in the front die core, the ejection block is arranged in the sliding hole, a mounting groove is formed in the position, corresponding to the sliding hole, of the front die, and the spring is arranged in the mounting groove and abuts against one end of the ejection block. The other end of the ejection block penetrates through the front mold core and partially abuts against the sliding block, and the die-casting cavity is defined by the sliding block, the other end of the ejection block, the front mold core and the rear mold core. The utility model aims to solve the problem that when the existing die-casting die is used for demoulding a thin-wall product, a casting is easy to deform due to overlarge wrapping force.

Description

Technical Field

[0001] The utility model belongs to the technical field of die-casting molds, and particularly relates to a die-casting mold for thin-walled products. Background Art

[0002] A die-casting mold is a special tool used in the die-casting process. It is mainly used to manufacture various metal parts with complex shapes. Die-casting is an efficient casting method that can produce parts with fine details and high dimensional accuracy. This process is particularly suitable for mass production.

[0003] A die-casting mold usually consists of two parts: a front mold (the moving part) and a rear mold (the fixed part). When the molten metal is injected into the mold cavity under high pressure, these parts close tightly to form the required part shape. Once the metal cools and hardens, the mold opens and the part can be removed.

[0004] In the existing die-casting molds for preparing thin-walled products, the local clamping force of the front mold is relatively large, while the casting structure is thin, and the casting is likely to be clamped to the front mold during demolding, resulting in deformation of the casting. Summary of the Utility Model

[0005] In view of the above technical problems, the utility model provides a die-casting mold for thin-walled products to solve the problem that the casting is prone to deformation due to excessive clamping force during the demolding of the existing die-casting mold for thin-walled products, and designs a new type of die-casting mold for thin-walled products, which can effectively avoid the demolding deformation problem of thin-walled products.

[0006] The utility model provides a die-casting mold for thin-walled products, which includes a pushing device, a slider, a front mold, a rear mold, a front mold core, a rear mold core, an ejector block and a spring. The front mold and the rear mold can be arranged to approach and engage with each other or separate from each other. The front mold core is embedded in the surface of the front mold facing the rear mold. When the front mold and the rear mold approach and engage with each other, the front mold core and the rear mold core engage, and a die-casting cavity is formed between the front mold core and the rear mold core. The rear mold core is embedded in the surface of the rear mold facing the front mold. The pushing device is connected to the side wall of the rear mold, the slider is connected to the pushing device, and the slider is inserted between the front mold core and the rear mold core. A sliding hole communicating the die-casting cavity and the front mold is arranged on the front mold core. The ejector block is arranged in the sliding hole. An installation groove is arranged at the position of the front mold corresponding to the sliding hole. The spring is arranged in the installation groove and abuts against one end of the ejector block. The other end of the ejector block passes through the front mold core and partially abuts against the slider. The die-casting cavity is formed by enclosing the slider, the other end of the ejector block, the front mold core and the rear mold core.

[0007] Further, the pushing device is a hydraulic cylinder.

[0008] Furthermore, the rear mold core is provided with a first injection channel, the first injection channel is connected with the die-casting cavity and the rear mold, and the rear mold is provided with a second injection channel connected with the first injection channel.

[0009] When the thin-walled product die-casting mold is used for die-casting of thin-walled products, the die-casting cavity is formed by enclosing the slider, the other end of the ejector block, the front mold core and the rear mold core, and the melt is injected into the die-casting cavity and cooled to form. When demolding, the front mold and the front mold core are first removed. At the same time, the ejector block provides a disengagement force to the position of the thin-walled product with a larger clamping force under the elastic force of the spring, so as to avoid deformation of the thin-walled product during the disengagement of the front mold core, and then the slider is driven by the pushing device to disengage from the rear mold core, and finally the thin-walled product is taken out from the rear mold core. This thin-walled product die-casting mold can effectively ensure the shape stability of the thin-walled product during the demolding process and avoid deformation. A plurality of ejector blocks and springs can be set corresponding to the deformation points of the thin-walled product. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0011] Figure 1 This is a schematic diagram of the structure of the die-casting mold for thin-walled products. DETAILED DESCRIPTION

[0012] The utility model discloses a die-casting mold for thin-walled products, which can effectively avoid the problem of mold release and deformation of thin-walled products.

[0013] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solution in the utility model. Obviously, what is described is only a part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0014] See also Figure 1As shown, the utility model provides a die-casting mold for thin-walled products, including a pushing device 8, a slider 1, a front mold 7, a rear mold 12, a front mold core 6, a rear mold core 10, an ejector block 2 and a spring 3, wherein the front mold 7 and the rear mold 12 can be close to each other or separated from each other, and the front mold core 6 is embedded in a side of the front mold 7 facing the rear mold 12. When the front mold 7 and the rear mold 12 are close to each other, the front mold core 6 and the rear mold core 10 are engaged, and a die-casting cavity is formed between the front mold core 6 and the rear mold core 10. The rear mold core 10 is embedded in a side of the rear mold 12 facing the front mold 7, and the pushing device 8 is connected to the front mold core 6. The side wall of the rear mold 12, the slider 1 is connected to the pushing device 8, and the slider 1 is inserted between the front mold core 6 and the rear mold core 10, the front mold core 6 is provided with a sliding hole 5 connecting the die-casting cavity and the front mold 7, the ejector block 2 is arranged in the sliding hole 5, the front mold 7 is provided with a mounting groove 4 at a position corresponding to the sliding hole 5, the spring 3 is arranged in the mounting groove 4 and abuts against one end of the ejector block 2, the other end of the ejector block 2 passes through the front mold core 6 and partially abuts against the slider 1, and the slider 1, the other end of the ejector block 2, the front mold core 6 and the rear mold core 10 enclose the die-casting cavity.

[0015] The pushing device 8 is a hydraulic cylinder.

[0016] The rear mold core 10 is provided with a first injection channel 9 , which is connected to the die-casting cavity and the rear mold 12 , and the rear mold 12 is provided with a second injection channel 11 which is connected to the first injection channel 9 .

[0017] When the thin-walled product die-casting mold is used for die-casting of thin-walled products, the slider 1, the other end of the ejector block 2, the front mold core 6 and the rear mold core 10 are used to enclose the die-casting cavity, and the melt is injected into the die-casting cavity and cooled to form. When demolding, the front mold 7 and the front mold core 6 are first removed. At the same time, the ejector block 2 provides a disengagement force to the position of the thin-walled product with a larger clamping force under the elastic force of the spring 3, so as to avoid deformation of the thin-walled product during the disengagement of the front mold core 6. Then, the slider 1 is driven by the pushing device 8 to disengage from the rear mold core 10, and finally, the thin-walled product is taken out from the rear mold core 10. This thin-walled product die-casting mold can effectively ensure the shape stability of the thin-walled product during the demolding process and avoid deformation. A plurality of ejector blocks 2 and springs 3 can be set corresponding to the deformation points of the thin-walled product.

[0018] The above content is a further detailed description of the present utility model in combination with specific preferred embodiments. It cannot be determined that the specific implementation of the present utility model is only limited to these descriptions. For those of ordinary skill in the technical field to which the present utility model pertains, without departing from the concept of the present utility model, several simple deductions or substitutions can still be made, and all should be regarded as belonging to the protection scope of the present utility model.

Claims

1. A die-casting mold for thin-walled products, characterized in that: The die casting die-casting device comprises a pushing device, a slider, a front die, a rear die, a front die core, a rear die core, an ejection block and a spring. The front die and the rear die can be arranged close to each other or separated from each other. The front die core is embedded in a side of the front die facing the rear die. When the front die and the rear die are close to each other, the front die core and the rear die core are engaged. A die casting cavity is formed between the front die core and the rear die core. The rear die core is embedded in a side of the rear die facing the front die. The pushing device is connected to the side wall of the rear die. The slider is connected to the A pushing device is provided, and the slider is inserted between the front mold core and the rear mold core, the front mold core is provided with a sliding hole connecting the die-casting cavity and the front mold, the ejector block is arranged in the sliding hole, and the front mold is provided with a mounting groove at a position corresponding to the sliding hole, the spring is arranged in the mounting groove and abuts against one end of the ejector block, the other end of the ejector block passes through the front mold core and partially abuts against the slider, and the die-casting cavity is formed by the slider, the other end of the ejector block, the front mold core and the rear mold core.

2. A die-casting mold for thin-walled products according to claim 1, characterized in that: The pushing device is a hydraulic cylinder.

3. A die-casting mold for thin-walled products according to claim 1, characterized in that: The rear mold core is provided with a first injection channel, the first injection channel is connected with the die casting cavity and the rear mold, and the rear mold is provided with a second injection channel connected with the first injection channel.

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