Die-casting die

Abstract

The utility model discloses a die-casting die which comprises a die body, the die body comprises a fixed die frame, a movable die frame, a fixed die core and a movable die core, the fixed die core is arranged in the fixed die frame, the movable die core is arranged in the movable die frame, and a cavity is formed between the movable die core and the fixed die core after the fixed die frame and the movable die frame are folded. A cavity is formed in the mold body, a sliding rod used for hole drawing is arranged in the mold body in a front-back movable mode, the sliding rod comprises a sliding rod main body, the two ends of the sliding rod main body are a driving end and a hole drawing end respectively, and the hole drawing end is correspondingly arranged in the hole drawing position of the cavity after stretching in place. And the sliding rod main body can movably extend into the guide hole back and forth. The die has the advantages that the structure is simple, the guide insert arranged in the die body plays a role in guiding the front-back movement of the sliding rod, and the sliding rod is prevented from shaking left and right or tilting up and down in the front-back movement process, so that the sliding rod is effectively prevented from being bent and deformed.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a die-casting mold. Background Art

[0002] In the field of die-casting manufacturing of products, the holes on some products must be made by punching holes with the slider on the mold. In order to achieve punching hole manufacturing, the slider on the mold used for punching holes must be made thin and long to form a slide bar structure. The thin and long slide bar is prone to shaking left and right and tilting up and down during the die-casting process. After long-term use, the slide bar will cause deformation and bending, which will lead to flying materials at the slide bar, affecting the quality of the product. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a die-casting die with a simple structure which can effectively prevent poor product quality caused by deformation and bending of a slide bar used for drawing holes.

[0004] The technical solution adopted by the utility model to solve the above technical problems is:

[0005] A die-casting mold comprises a mold body, wherein the mold body comprises a fixed mold frame, a movable mold frame, a fixed mold core and a movable mold core, the fixed mold core is arranged in the fixed mold frame, the movable mold core is arranged in the movable mold frame, and a cavity is formed between the movable mold core and the fixed mold core when the fixed mold frame and the movable mold frame are closed. A slide bar for drawing holes can be movably arranged in the mold body, and the slide bar comprises a slide bar body. The two ends of the slide bar body are respectively a driving end and a drawing hole end. After the drawing hole end is extended into place, it is correspondingly arranged in the drawing hole position of the cavity. A guide insert for guiding and preventing the slide bar from bending is arranged in the mold body, and the guide insert has a guide hole that penetrates front and back and cooperates with the slide bar body, and the slide bar body can be movably extended in the guide hole.

[0006] The guide insert is fixedly arranged on the fixed mold core, and plays a stable guiding role for the slide rod.

[0007] The guide insert includes a fixing part and a guiding part, the fixing part is fixedly embedded in the fixed mold core, the guiding part is a protruding part protruding upwardly on the fixing part, the guiding part is provided with the guiding hole penetrating from front to back, the movable mold core is provided with an escape groove at a position corresponding to the guiding part, and the guiding part is embedded in the escape groove after the mold is closed. The structure is simple, the fixing part is used to realize the stable fixed installation of the guide insert on the fixed mold core, and the guiding part plays a stable guiding role.

[0008] The driving end is connected with a driving oil cylinder, and the sliding rod is driven by the driving oil cylinder to move forward and backward. The structure is simple and the driving is stable.

[0009] The top end face of the guide hole is a flat end face, the slide rod body includes a guide section and a drive connection section arranged in sequence from front to back, the drive end is the end of the drive connection section, the top of the guide section is provided with a guide flat end face matching the top end face of the guide hole from front to back, the position of the guide flat end face is lower than the top position of the drive connection section, and a vertical limiting surface is formed at the connection between the guide section and the drive connection section. The installation orientation of the slide rod is limited by the cooperation between the two flat end faces, and the limiting surface also plays a limiting role on the forward movement of the slide rod.

[0010] The fixed mold frame is provided with an arc-shaped guide recess matched with the slide rod body at the installation position corresponding to the slide rod, and the slide rod body is embedded in the arc-shaped guide recess. The arc-shaped guide recess guides, supports and further prevents the slide rod from bending and deforming.

[0011] Compared with the prior art, the advantages of the utility model are: simple structure, and a guide insert arranged in the mold body to guide the forward and backward movement of the slide rod, preventing the slide rod from shaking left and right or tilting up and down during the forward and backward movement, thereby effectively preventing the slide rod from bending and deforming and affecting the product's hole-drawing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a cross-sectional structural schematic diagram of the utility model;

[0013] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0014] Figure 3 It is a front view structural diagram of a fixed model in the utility model;

[0015] Figure 4 It is a three-dimensional structural schematic diagram of the sliding rod in the utility model;

[0016] Figure 5 It is a schematic diagram of the three-dimensional structure of the fixed mold frame and the fixed mold core in the utility model. DETAILED DESCRIPTION

[0017] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0018] As shown in the figure, a die-casting mold includes a mold body, the mold body includes a fixed mold frame 1, a movable mold frame 2, a fixed mold core 3 and a movable mold core 4, the fixed mold core 3 is arranged in the fixed mold frame 1, the movable mold core 4 is arranged in the movable mold frame, and when the fixed mold frame 1 and the movable mold frame are closed, a cavity 5 is formed between the movable mold core 4 and the fixed mold core 3, and a slide bar 6 for drawing holes can be movably arranged in the mold body, and the slide bar 6 includes a slide bar body 601, and the two ends of the slide bar body 601 are respectively a driving end 602 and a hole-drawing end 603, and the hole-drawing end 603 is correspondingly arranged in the hole-drawing position 51 of the cavity 5 after being extended into place, and a guide insert 7 for guiding and preventing the slide bar 6 from bending is arranged in the mold body, and the guide insert 7 has a guide hole 701 that penetrates front and back and matches the slide bar body 601, and the slide bar body 601 can be movably extended in the guide hole 701.

[0019] In this specific embodiment, the guide insert 7 is fixedly arranged on the fixed mold core 3 to provide a stable guide for the slide rod 6 .

[0020] In this specific embodiment, the guide insert 7 includes a fixing portion 71 and a guiding portion 72. The fixing portion 71 is fixedly embedded in the fixed mold core 3. The guiding portion 72 is a protruding portion protruding upwardly on the fixing portion 71. The guiding portion 72 is provided with a guide hole 701 that passes through the front and back. The position of the movable mold core 4 corresponding to the guiding portion 72 is recessed with an avoidance groove 41. After the mold is closed, the guiding portion 72 is embedded in the avoidance groove 41. The structure is simple, and the guide insert 7 is stably fixed and installed on the fixed mold core 3 through the fixing portion 71, and the guiding portion 72 plays a stable guiding role.

[0021] In this specific embodiment, the driving end 602 is connected to a driving cylinder 8, and the sliding rod 6 is driven to move forward and backward by the driving cylinder 8. The structure is simple and the driving is stable.

[0022] In this specific embodiment, the top end surface 7011 of the guide hole 701 is a flat end surface, the slide bar body 601 includes a guide section 6011 and a drive connection section 6012 arranged in sequence from front to back, the drive end 602 is the end of the drive connection section 6012, and the top of the guide section 6011 is provided with a guide flat end surface 6013 matched with the top end surface 7011 of the guide hole 701 from front to back, the position of the guide flat end surface 6013 is lower than the top position of the drive connection section 6012, and a vertical limiting surface 6014 is formed at the connection between the guide section 6011 and the drive connection section 6012. The installation orientation of the slide bar 6 is limited by the cooperation between the two flat end surfaces, and the limiting surface 6014 plays a limiting role in the forward movement of the slide bar 6.

[0023] In this specific embodiment, an arc-shaped guide recess 11 matching with the slide bar body 601 is provided on the fixed mold frame 1 at the installation position corresponding to the slide bar 6, and the slide bar body 601 is embedded in the arc-shaped guide recess 11. The arc-shaped guide recess 11 guides, supports and further prevents the movement of the slide bar 6 from bending and deformation.

Claims

1. A die-casting mold, comprising a mold body, wherein the mold body comprises a fixed mold frame, a movable mold frame, a fixed mold core and a movable mold core, wherein the fixed mold core is arranged in the fixed mold frame, wherein the movable mold core is arranged in the movable mold frame, wherein a cavity is formed between the movable mold core and the fixed mold core after the fixed mold frame and the movable mold frame are closed, wherein a slide bar for drawing holes is movably arranged in the mold body, wherein the slide bar comprises a slide bar body, wherein the two ends of the slide bar body are respectively a driving end and a hole drawing end, wherein the hole drawing end is arranged in a corresponding hole drawing position of the cavity after being extended into position, wherein the slide bar comprises a slide bar body, wherein the two ends of the slide bar body comprise a slide bar body, wherein the slide bar body comprises ... The mold body is provided with a guide insert for guiding and preventing the slide bar from bending. The guide insert has a guide hole which passes through the front and back and matches the slide bar body. The slide bar body can be movably extended into the guide hole.

2. A die-casting mold according to claim 1, characterized in that The guide insert is fixedly arranged on the fixed mold core.

3. A die-casting mold as claimed in claim 2, characterized in that The guide insert includes a fixing part and a guiding part. The fixing part is fixedly embedded in the fixed mold core. The guiding part is a protruding part protruding upward on the fixing part. The guiding part is provided with a guide hole that passes through the front and back. An avoidance groove is recessed at a position corresponding to the guide part on the movable mold core. After the mold is closed, the guiding part is embedded in the avoidance groove.

4. A die-casting mold according to claim 1, characterized in that The driving end is connected with a driving cylinder, and the sliding rod is driven by the driving cylinder to move forward and backward.

5. A die-casting mold according to claim 1, characterized in that The top end face of the guide hole is a flat end face, the slide rod body includes a guide section and a drive connecting section arranged in sequence from front to back, the drive end is the end head of the drive connecting section, the top of the guide section is provided with a guide flat end face matching the top end face of the guide hole from front to back, the position of the guide flat end face is lower than the top position of the drive connecting section, and a vertical limiting surface is formed at the connection between the guide section and the drive connecting section.

6. A die-casting mold according to claim 1, characterized in that An arc-shaped guide recess matched with the slide bar body is arranged on the fixed mold frame at the installation position corresponding to the slide bar, and the slide bar body is embedded in the arc-shaped guide recess.

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