Die-casting exhaust structure and die-casting device

Abstract

The disclosure provides a die casting exhaust structure and a die casting device, the die casting exhaust structure comprises a movable die blank assembly, a fixed die blank assembly and an exhaust assembly, the movable die blank assembly comprises a movable die blank body and a first spiral part, the fixed die blank assembly comprises a fixed die blank body and a second spiral part, the exhaust assembly comprises an upper exhaust block, a lower exhaust block and an elastic part, the lower exhaust block is provided with an elastic mounting groove, and the elastic part is located in the elastic mounting groove. Because the lower exhaust block is provided with the elastic mounting groove, the elastic mounting groove deviates from the upper exhaust block, and the elastic part is in interference abutment with the lower exhaust block and the movable die blank body respectively, in the case that the die blank is deformed or worn, the elastic part pushes the lower exhaust block through the elastic force of the elastic part, so that the lower exhaust block moves upwards along the axis of the elastic mounting groove, until the lower exhaust block abuts against the upper exhaust block, and the outer gap between the upper exhaust block and the lower exhaust block will not continue to increase, preventing the leakage of metal liquid such as aluminum liquid, and ensuring the stable production.

Description

Technical Field

[0001] This disclosure relates to the field of die casting mold technology, and in particular to a die casting venting structure and die casting apparatus. Background Technology

[0002] In metal die casting or injection molding processes, venting of molten metal is a crucial step in ensuring casting quality. When molten metal fills the mold cavity, air, paint volatiles, and gases from the molten metal must be expelled through the venting system. If gases remain trapped, defects such as porosity and shrinkage cavities will form, reducing the mechanical properties and sealing performance of the casting.

[0003] Therefore, venting blocks need to be installed on both the moving and fixed mold sides to allow gas to escape when the molten metal fills the cavity. Currently, there is a die-casting venting structure, such as... Figure 1 As shown, the upper vent block 11 and the fixed mold blank 12, as well as the lower vent block 13 and the moving mold blank 14, are all locked together on the vertical and horizontal plane by screws 15 and 16. During long-term production, the mold blank may wear out, which will increase the outer gap between the upper vent block and the lower vent block. When the gap increases to a certain extent (such as exceeding 0.05mm), the high-pressure molten metal will spray out of the mold from the gap, causing a safety hazard and interrupting production. Utility Model Content

[0004] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a die casting venting structure and die casting device that can ensure that the outer gap does not increase when the mold blank is worn, thus preventing molten metal from spraying out of the mold.

[0005] The purpose of this disclosure is achieved through the following technical solution:

[0006] A die-casting venting structure includes a moving mold blank assembly, a fixed mold blank assembly, and a venting assembly. The moving mold blank assembly includes a moving mold blank body and a first spiral component. The fixed mold blank assembly includes a fixed mold blank body and a second spiral component. The fixed mold blank body has a first notch, and the moving mold blank body has a second notch. The first notch and the second notch together form a venting mounting groove. The venting assembly is located within the venting mounting groove. The venting assembly includes an upper venting block, a lower venting block, and an elastic component. The upper venting block and the lower venting block abut against each other. The fixed mold blank body and the upper venting block are fixedly connected by the second spiral component. The moving mold blank body and the lower venting block are fixedly connected by the first spiral component. The lower venting block has an elastic mounting groove with its opening facing away from the upper venting block. The elastic component is located within the elastic mounting groove and is respectively interference-fitted against the lower venting block and the moving mold blank body.

[0007] In one embodiment, the elastic component includes a spring and a fixing block, with the two ends of the spring abutting against the bottom of the elastic mounting groove and the fixing block, respectively, and the fixing block abutting against the moving mold blank body.

[0008] In one embodiment, the elastic component further includes a fixing screw, the fixing block has a fixing through hole, the spring has a hollow channel, the lower exhaust block has a fixing screw hole, the helical portion of the fixing screw passes through the fixing through hole, the hollow channel and the fixing screw hole in sequence, and the top of the fixing screw abuts against the fixing block.

[0009] In one embodiment, the moving mold blank body has a first spiral through hole, and the lower vent block has a second spiral through hole. The threaded portion of the first spiral member passes through the second spiral through hole and the first spiral through hole in sequence. The top of the first spiral member abuts against the lower vent block, so that the first spiral member is laterally fixedly connected to the moving mold blank body and the lower vent block.

[0010] In one embodiment, the first spiral through hole is disposed at the bottom of the exhaust mounting groove.

[0011] In one embodiment, the fixed mold blank body has a third spiral through hole, the upper vent block has a fourth spiral through hole, the threaded portion of the second spiral member passes through the third spiral through hole and the fourth spiral through hole in sequence, and the top of the second spiral member abuts against the fixed mold blank body, so that the second spiral member is longitudinally fixedly connected to the fixed mold blank body and the upper vent block.

[0012] In one embodiment, a first preset angle is formed between the axial line of the first spiral through hole and the axial line of the third spiral through hole.

[0013] In one embodiment, a second preset angle is formed between the axial line of the second spiral through hole and the axial line of the fourth spiral through hole.

[0014] In one embodiment, the first preset angle is 88°-92°.

[0015] In one embodiment, the second preset angle is 88°-92°.

[0016] In one embodiment, the exhaust mounting groove is a circular groove.

[0017] A die-casting apparatus, comprising the die-casting venting structure described in any of the above embodiments.

[0018] Compared with the prior art, this disclosure has at least the following advantages:

[0019] The aforementioned die-casting venting structure employs elastic components. Since the lower vent block has an elastic mounting groove that faces away from the upper vent block, and the elastic components are respectively press-fitted against the lower vent block and the moving mold blank, in the event of deformation or wear of the mold blank, the elastic components, through their own elasticity, push the lower vent block, causing it to move along the axial direction of the elastic mounting groove until the lower vent block abuts against the upper vent block. Furthermore, the outer gap between the upper and lower vent blocks will not continue to increase. This structure allows for adjustment of the lower vent block's height via the elastic components, preventing leakage of molten metal such as aluminum and ensuring stable production. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of a die-casting venting structure in the prior art;

[0022] Figure 2 This is a cross-sectional schematic diagram of the die-casting venting structure in one embodiment;

[0023] Figure 3 for Figure 2 A magnified view of the die-casting venting structure at point A;

[0024] Figure 4 for Figure 2 A partial structural schematic diagram of the die-casting venting structure is shown.

[0025] Figure 5 for Figure 2 Another structural schematic diagram of the die-casting venting structure shown;

[0026] Figure 6 for Figure 2 The diagram shows a cross-sectional view of the die-casting venting structure in another structure.

[0027] Reference numerals: 10, Die-casting venting structure; 10a, Venting mounting groove; 100, Moving mold blank assembly; 110, Moving mold blank body; 110a, Second notch; 111, First spiral through hole; 120, First spiral component; 200, Fixed mold blank assembly; 210, Fixed mold blank body; 210a, First notch; 211, Third spiral through hole; 220, Second spiral component; 300, Venting assembly; 310, Upper venting block; 311, Fourth spiral through hole; 320, Lower venting block; 321, Elastic mounting groove; 322, Fixing screw hole; 323, Second spiral through hole; 330, Elastic component; 331, Spring; 332, Fixing block; 3321, Fixing through hole; 333, Fixing screw. Detailed Implementation

[0028] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] To better understand the technical solutions and beneficial effects of this disclosure, the following detailed description is provided in conjunction with specific embodiments:

[0032] Please see Figure 2 and Figure 3 The die-casting venting structure 10, which is an embodiment of the present utility model, includes a moving mold blank assembly 100, a fixed mold blank assembly 200 and a venting assembly 300. The moving mold blank assembly 100 includes a moving mold blank body 110 and a first spiral component 120, and the fixed mold blank assembly 200 includes a fixed mold blank body 210 and a second spiral component 220.

[0033] Combination Figure 4 and Figure 5 As shown, the fixed mold blank body 210 has a first notch 210a, and the movable mold blank body 110 has a second notch 110a. The first notch and the second notch together form a venting mounting groove 10a. The venting assembly 300 is located in the venting mounting groove 10a. The venting assembly 300 includes an upper venting block 310, a lower venting block 320, and an elastic member 330. The upper venting block 310 and the lower venting block 320 abut against each other. The fixed mold blank body 210 and the upper venting block 310 are fixedly connected by a second spiral member 220. The moving mold blank body 110 and the lower vent block 320 are fixedly connected by the first spiral member 120. The lower vent block 320 has an elastic mounting groove 321. The opening of the elastic mounting groove 321 is away from the upper vent block 310. The elastic member 330 is located in the elastic mounting groove 321 and is press-fitted against the lower vent block 320 and the moving mold blank body 110 respectively, so that the lower vent block 320 moves upward under the action of the elastic member 330 until the lower vent block 320 abuts against the upper vent block 310.

[0034] In the above embodiment, the die-casting venting structure 10 adopts an elastic component 330. Since the lower venting block 320 has an elastic mounting groove 321, and the elastic mounting groove 321 is away from the upper venting block 310, and the elastic component 330 is respectively interference-fitted to the lower venting block 320 and the moving mold blank body 110, when the mold blank is deformed or worn, the elastic component 330 pushes the lower venting block 320 with its own elastic force, so that it moves along the axial direction of the elastic mounting groove 321 until the lower venting block 320 abuts against the upper venting block 310, and the outer gap between the upper venting block 310 and the lower venting block 320 will not continue to increase. This structure can play the role of adjusting the height of the lower venting block 320 through the elastic component 330, preventing the leakage of molten metal such as aluminum liquid, and ensuring stable production.

[0035] like Figure 3 As shown, in one embodiment, the elastic component 330 includes a spring 331 and a fixing block 332. The two ends of the spring 331 abut against the bottom of the elastic mounting groove 321 and the fixing block 332, respectively. The fixing block 332 also abuts against the moving mold blank body 110. It can be understood that when the elastic component 330 uses a spring 331 and a fixing block 332, on the one hand, the setting of the fixing block 332 avoids the situation where the spring 331 directly abuts against the moving mold blank body 110, reducing the wear of the spring 331. On the other hand, the spring 331 abuts against the bottom of the elastic mounting groove 321 and the fixing block 332, respectively, so that there is an opposite force between the lower vent block 320 and the fixing block 332, that is, the lower vent block 320 has an upward force and the fixing block 332 has a downward force. Even if the mold blank is worn or deformed, the lower vent block 320 can move upward more easily until it abuts against the upper vent block 310.

[0036] Furthermore, such as Figure 3 As shown, the elastic component 330 also includes a fixing screw 333, the fixing block 332 has a fixing through hole 3321, the spring 331 has a hollow channel, and the lower vent block 320 has a fixing screw hole 322. The helical part of the fixing screw 333 passes through the fixing through hole 3321, the hollow channel, and the fixing screw hole 322 in sequence, and the top of the fixing screw 333 abuts against the fixing block 332. It can be understood that the setting of the fixing screw 333 can limit the range of motion of the fixing block 332, prevent the fixing block 332 from disengaging from the elastic mounting groove 321, and thus ensure that the lower vent block 320 moves upward when the mold blank deforms. Furthermore, the helical part of the fixing screw 333 is screwed to the lower vent block 320.

[0037] like Figure 6 As shown, in one embodiment, the moving mold blank body 110 has a first spiral through hole 111, and the lower vent block 320 has a second spiral through hole 323. The threaded portion of the first spiral member 120 passes through the second spiral through hole 323 and the first spiral through hole 111 in sequence, and the top of the first spiral member 120 abuts against the lower vent block 320, so that the moving mold blank body 110 and the lower vent block 320 are connected by the first spiral member 120. Further, the first spiral through hole 111 is provided at the bottom of the vent mounting groove 10a. Since the opening direction of the vent mounting groove 10a faces the side of the moving mold blank body 110 and the fixed mold blank body 210, and the threaded portion of the first spiral member 120 passes through the second spiral through hole 323 and the first spiral through hole 111 in sequence, the first spiral member 120 laterally fixes the moving mold blank body 110 and the lower vent block 320.

[0038] like Figure 6 As shown, in one embodiment, the fixed mold blank body 210 has a third spiral through hole 211, and the upper vent block 310 has a fourth spiral through hole 311. The threaded portion of the second spiral member 220 passes through the third spiral through hole 211 and the fourth spiral through hole 311 in sequence, and the top of the second spiral member 220 abuts against the fixed mold blank body 210, so that the fixed mold blank body 210 and the upper vent block 310 are connected by the second spiral member 220. Further, the second spiral member 220 longitudinally fixes the fixed mold blank body 210 and the upper vent block 310.

[0039] like Figure 6 As shown, in one embodiment, a first preset angle is formed between the axial line of the first spiral through-hole 111 and the axial line of the third spiral through-hole 211. Since the first spiral member 120 laterally fixes the moving mold blank body 110 and the lower vent block 320, and the second spiral member 220 longitudinally fixes the fixed mold blank body 210 and the upper vent block 310, a certain angle is formed between the axial line of the first spiral through-hole 111 and the axial line of the third spiral hole.

[0040] In another embodiment, such as Figure 6 As shown, a second preset angle is formed between the axial line of the second spiral through-hole 323 and the axial line of the fourth spiral through-hole 311. Since the first spiral member 120 fixes the moving mold blank body 110 and the lower vent block 320 laterally, and the second spiral member 220 fixes the fixed mold blank body 210 and the upper vent block 310 longitudinally, a certain angle is formed between the axial line of the second spiral through-hole 323 and the axial line of the fourth spiral hole.

[0041] It is understandable that since the first spiral member 120 fixes the moving mold blank body 110 and the lower vent block 320 laterally, it is locked in the horizontal direction, and the lower vent block 320 is not locked in the vertical direction, so there is a certain gap for movement. In addition, the elastic member 330 is added to this solution, so that the lower vent block 320 moves upward under the elastic force of the elastic member 330, ensuring that the contact surface between the upper vent block 310 and the lower vent block 320 always abuts. When the upper vent block 310 is fixed longitudinally by the second spiral member 220, it is restricted from vertical movement, which prevents the molten metal from spraying out from the outer gap formed between the upper vent block 310 and the lower vent block 320.

[0042] Furthermore, the first preset angle is 88°-92°. In a preferred embodiment, the first preset angle is 90°, that is, the angle formed between the axial direction of the first spiral through-hole 111 and the axial direction of the third spiral hole is 90°, i.e., perpendicular.

[0043] Furthermore, the second preset angle is 88°-92°. In a preferred embodiment, the second preset angle is 90°, that is, the angle formed between the axial direction of the second spiral through-hole 323 and the axial direction of the fourth spiral hole is 90°, i.e., perpendicular.

[0044] In one embodiment, the exhaust mounting groove 10a is a circular groove. Of course, in other embodiments, the exhaust mounting groove 10a can be an elliptical groove, a square groove, etc.

[0045] This disclosure also provides a die-casting apparatus, including the die-casting venting structure 10 of any of the above embodiments.

[0046] Compared with the prior art, this disclosure has at least the following advantages:

[0047] The aforementioned die-casting venting structure 10 employs an elastic component 330. Since the lower venting block 320 has an elastic mounting groove 321, and the elastic mounting groove 321 is away from the upper venting block 310, and the elastic component 330 is respectively interference-fitted to the lower venting block 320 and the moving mold blank body 110, when the mold blank is deformed or worn, the elastic component 330 pushes the lower venting block 320 with its own elastic force, causing it to move along the axial direction of the elastic mounting groove 321 until the lower venting block 320 abuts against the upper venting block 310, and the outer gap between the upper venting block 310 and the lower venting block 320 will not continue to increase. This structure can adjust the height of the lower venting block 320 through the elastic component 330, preventing leakage of molten metal such as molten aluminum and ensuring stable production.

[0048] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the disclosed patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A die-casting venting structure, comprising a moving mold blank assembly, a fixed mold blank assembly, and a venting assembly, wherein the moving mold blank assembly includes a moving mold blank body and a first spiral component, the fixed mold blank assembly includes a fixed mold blank body and a second spiral component, the fixed mold blank body has a first notch, the moving mold blank body has a second notch, the first notch and the second notch together form a venting mounting groove, and the venting assembly is located within the venting mounting groove, characterized in that... The venting assembly includes an upper venting block, a lower venting block, and an elastic component. The upper venting block and the lower venting block abut against each other. The fixed mold blank body is fixedly connected to the upper venting block by the second spiral component. The moving mold blank body is fixedly connected to the lower venting block by the first spiral component. The lower venting block has an elastic mounting groove with its opening facing away from the upper venting block. The elastic component is located in the elastic mounting groove and is respectively interference-fitted against the lower venting block and the moving mold blank body.

2. The die-cast exhaust structure according to claim 1, characterized by, The elastic component includes a spring and a fixing block. The two ends of the spring abut against the bottom of the elastic mounting groove and the fixing block, respectively. The fixing block also abuts against the moving mold blank body.

3. The die-cast exhaust structure according to claim 2, characterized by, The elastic component also includes a fixing screw, the fixing block has a fixing through hole, the spring has a hollow channel, the lower exhaust block has a fixing screw hole, and the helical part of the fixing screw passes through the fixing through hole, the hollow channel and the fixing screw hole in sequence, and the top of the fixing screw abuts against the fixing block.

4. The die-cast exhaust structure according to claim 1, characterized by, The moving mold blank body has a first spiral through hole, and the lower vent block has a second spiral through hole. The threaded portion of the first spiral member passes through the second spiral through hole and the first spiral through hole in sequence. The top of the first spiral member abuts against the lower vent block so that the first spiral member is laterally fixedly connected to the moving mold blank body and the lower vent block.

5. The die-cast exhaust structure according to claim 4, characterized by, The first spiral through hole is located at the bottom of the exhaust mounting groove.

6. The die-cast exhaust structure according to claim 4, characterized by, The fixed mold blank body has a third spiral through hole, and the upper vent block has a fourth spiral through hole. The threaded portion of the second spiral member passes through the third spiral through hole and the fourth spiral through hole in sequence. The top of the second spiral member abuts against the fixed mold blank body, so that the second spiral member is longitudinally fixedly connected to the fixed mold blank body and the upper vent block.

7. The die-cast exhaust structure according to claim 6, characterized by, The axial line of the first spiral through-hole and the axial line of the third spiral through-hole form a first preset angle; and / or, The axial line of the second spiral through hole and the axial line of the fourth spiral through hole form a second preset angle.

8. The die-cast exhaust structure according to claim 7, characterized by, The first preset angle is 88°-92°; and / or, The second preset angle is 88°-92°.

9. The die-cast exhaust structure according to claim 1, characterized by, The exhaust mounting slot is a circular slot.

10. A die casting apparatus characterized by comprising: Includes the die-cast venting structure as described in any one of claims 1-9.

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