Core pulling and inserting mechanism of die-casting die

Abstract

The utility model belongs to the technical field of die-casting dies, and provides a core pulling and inserting mechanism of a die-casting die, which comprises a movable die assembly, a first sliding assembly and a second sliding assembly, a movable die core is arranged on the movable die assembly, the first sliding assembly is provided with a first sliding block and a core rod, the core rod penetrates through the first sliding block, and the second sliding assembly is provided with a second sliding block. The second sliding assembly is provided with a second sliding block seat and a second sliding block, and the second sliding block is connected with the second sliding block seat. Compared with the prior art, the mold has the advantages that the first sliding block assembly and the second sliding block assembly are arranged, the first sliding block assembly is provided with the first sliding block and the core rod, the core rod penetrates through the first sliding block, the second sliding assembly is provided with the core pulling assembly, and the core pulling rod of the core pulling assembly can movably penetrate through the second sliding block seat; the core pulling rod sequentially penetrates through the second sliding block base, the movable mold core and the first sliding block and abuts against the mold core rod. After feed liquid is injected into the product mold cavity, a needed through hole can be formed through the mold core rod and the core pulling rod.

Description

Technical Field

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

[0002] Pressure casting is a method of obtaining castings by filling the die cavity of a die-casting mold with liquid or semi-liquid metal under high pressure and at high speed, and then rapidly solidifying under pressure.

[0003] When the movable mold core plate and the fixed mold core plate of existing automotive parts products are molded together, the core rod and the core pulling rod are required to form the required through holes on the product. However, due to the structure of the product and the structure of the movable mold and the fixed mold, the forming of the through holes is relatively troublesome. Most of them are formed by die casting and then manually processed for secondary processing. Therefore, an insertion mechanism is designed to solve this problem. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a core pulling and inserting mechanism for a perforated die-casting die on a product by one-time die-casting in view of the current status of the prior art.

[0005] The utility model solves the above technical problems by adopting a technical solution: a core pulling and inserting mechanism of a die casting mold is proposed, comprising: a movable mold assembly, a first sliding assembly and a second sliding assembly, wherein the movable mold assembly is provided with a movable mold core, wherein:

[0006] The first sliding assembly comprises a first slider and a core rod, the core rod passes through the first slider, the second sliding assembly comprises a second slider seat and a second slider, the second slider is connected to the second slider seat;

[0007] A core pulling assembly, the core pulling assembly is arranged on the second sliding assembly, the core pulling assembly has a core pulling rod, the core pulling rod is movably arranged on the second slider seat, and the core pulling rod can movably penetrate the second slider seat, the dynamic model core and the first slider;

[0008] When the external fixed model core and the movable model core, the first slider and the second slider form a product cavity, the core pulling rod can move relative to the second slider seat, so that the core pulling rod passes through the second slider seat, the movable model core and the first slider in sequence and abuts against the core rod.

[0009] In the above-mentioned core pulling and insertion mechanism of a die-casting mold, the core pulling assembly has a core pulling seat and a core pulling cylinder, the core pulling rod is detachably connected to the core pulling seat, the core pulling cylinder is arranged on the second sliding assembly, and the driving end of the core pulling cylinder is connected to the core pulling seat.

[0010] In the above-mentioned core pulling and insertion mechanism of a die-casting mold, a through groove is opened on the second slider seat, and guide recesses are formed on both sides of the through groove. The core pulling seat is located on the through groove, and guide protrusions are arranged on both sides of the core pulling seat, and the guide protrusions are slidably connected with the guide recesses.

[0011] In the core pulling and inserting mechanism of the above-mentioned die-casting mold, the core pulling assembly has a sensor element, and the sensor element is arranged on the second slider seat and extends into the core pulling rod.

[0012] In the core pulling and inserting mechanism of the above-mentioned die-casting mold, the core pulling assembly has a core pulling guide sleeve, the core pulling guide sleeve is arranged on the first sliding block, and the core pulling rod is slidably connected to the core pulling guide sleeve.

[0013] In the above-mentioned core pulling and inserting mechanism of the die casting mold, the axial direction of the core pulling rod is arranged perpendicular to the axial direction of the core rod.

[0014] In the above-mentioned core-pulling and insertion mechanism of a die-casting mold, a second sliding cylinder is provided on the second sliding assembly, the second sliding cylinder is provided on the movable mold assembly, and the driving end of the second sliding cylinder is connected to the second sliding block seat.

[0015] In the above-mentioned core pulling and insertion mechanism of a die-casting mold, a connecting portion is formed at the end of the core pulling rod away from the core rod abutting against the core rod, the connecting portion is connected to the core pulling seat by bolts, and a positioning groove is provided on the connecting portion, and a positioning block is provided on the end of the core pulling seat away from the core pulling cylinder, and the positioning block is connected to the positioning groove.

[0016] In the above-mentioned core pulling and insertion mechanism of a die-casting mold, a first limiting surface is arranged on the connecting portion, and a second limiting surface is arranged on the second slider seat. When the core pulling seat drives the core pulling rod to move on the second slider seat, and the first limiting surface and the second limiting surface are in the same horizontal plane, the core pulling rod abuts against the core rod.

[0017] Compared with the prior art, the advantage of the utility model lies in that a first slider assembly and a second slider assembly are provided, the first slider assembly comprises a first slider and a core rod, the core rod passes through the first slider, and a core pulling assembly is provided on the second slider assembly, the core pulling rod of the core pulling assembly can movably pass through the second slider seat, when the mold is closed, the core pulling rod successively passes through the second slider seat, the movable core and the first slider and abuts against the core rod, after the product cavity is injected with slurry, the required counter-piercing holes can be formed through the core rod and the core pulling rod, thereby solving the problem that the counter-piercing holes cannot be formed in one time due to problems such as product structure, reducing secondary processing, improving work efficiency and also reducing manpower and material resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the front view of the core pulling and inserting mechanism of the die casting mold;

[0019] Figure 2 This is a bottom view of the core pulling and inserting mechanism of the die casting mold;

[0020] Figure 3 It is a cross-sectional view of the core pulling and inserting mechanism of the die casting mold;

[0021] Figure 4 is a structural schematic diagram of the second slider seat and the second slider;

[0022] Figure 5 It is a structural schematic diagram of a core pulling seat and a core pulling rod;

[0023] Figure 6 It is an exploded view of the core pulling assembly.

[0024] In the figure,

[0025] 1. Moving mold assembly; 100. Moving mold core; 2. First sliding assembly; 200. First slider; 201. Core rod; 3. Second sliding assembly; 300. Second slider seat; 301. Second slider; 302. Through groove; 303. Guide recess; 304. Second sliding cylinder; 305. Second limit surface; 4. Core pulling assembly; 400. Core pulling rod; 401. Core pulling seat; 402. Core pulling cylinder; 403. Guide protrusion; 404. Sensor element; 405. Core pulling guide sleeve; 406. Connecting part; 407. Positioning groove; 408. Positioning block; 409. First limit surface. DETAILED DESCRIPTION

[0026] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0027] like Figures 1 to 6 As shown, the core pulling and inserting mechanism of the die casting mold includes: a movable mold component 1, a first sliding component 2, a second sliding component 3 and a core pulling component 4.

[0028] Specifically, the die-casting mold has a movable mold component 1 (not shown in the figure) and a fixed mold component (not shown in the figure), the movable mold component 1 is provided with a movable mold core 100, and the fixed mold component is provided with a fixed mold core (not shown in the figure), the movable mold component 1 can move relative to the fixed mold component, so as to realize the closing or opening of the die-casting mold. In this embodiment, the first sliding component 2 and the second sliding component 3 are arranged on the movable mold component 1, the first sliding component 2 has a first slider 200 and a core rod 201, the core rod 201 passes through the first slider 200, the second sliding component 3 has a second slider seat 300 and a second slider 301, the second slider 301 is connected to the second slider seat 300, and the core pulling component 4 is arranged on the second sliding component 3, the core pulling component 4 has a core pulling rod 400, the core pulling rod 400 is movably arranged on the second slider seat 300, and the core pulling rod 400 can movably pass through the second slider seat 300, the movable mold core 100 and the first slider 200. When the movable mold assembly 1 moves relative to the fixed mold assembly for mold closing, the fixed mold core fits against the fixed mold core, then the first slider 200 moves inward and fits against the fixed mold core, and then the second slider 301 also moves inward, so that the fixed mold core, the movable mold core 100, the first slider 200 and the second slider 301 enclose and form a product cavity, and finally the core pulling rod 400 moves inward relative to the second slider seat 300, so that the core pulling rod 400 sequentially penetrates the second slider seat 300, the movable mold core 100 and the first slider 200 and fits against the core rod 201, and then after the product cavity is injected with slurry, the required counter-holes can be formed through the core rod 201 and the core pulling rod 400, thereby solving the problem that the counter-holes cannot be formed due to product structure and other problems, and thus secondary processing cannot be performed, thereby improving work efficiency while reducing the loss of manpower and material resources.

[0029] When the die-casting mold is opened, the core pulling rod 400 is reset and retreated first, and then the second slider 301 and the first slider 200 are retreated in turn, and then the movable mold assembly 1 is moved away from the fixed mold assembly, and the fixed mold core is separated from the fixed mold core, and then other ejection mechanisms of the die-casting mold eject the molded product from the movable mold core 100.

[0030] It should be noted that the core rod 201 is fixed on the first slider 200 , and when the first slider 200 moves, the core rod 201 also moves synchronously.

[0031] Specifically, Figures 1 to 6 As shown, the core pulling assembly 4 has a core pulling seat 401 and a core pulling cylinder 402 , the core pulling rod 400 is detachably connected to the core pulling seat 401 , the core pulling cylinder 402 is arranged on the second sliding assembly 3 , and the driving end of the core pulling cylinder 402 is connected to the core pulling seat 401 .

[0032] The movement of the core pulling seat 401 on the second slider seat 300 and the movement of the second slider seat 300 on the movable mold assembly 1 are separate actions. The core pulling cylinder 402 is arranged on the second sliding assembly 3, and the driving end of the core pulling cylinder 402 is connected to the core pulling seat 401, so that the core pulling cylinder 402 drives the core pulling seat 401 to move along the direction of movement of the second slider seat 300 on the movable mold assembly 1 on the second slider seat 300, so that the core pulling seat 401 drives the core pulling rod 400 to move.

[0033] Furthermore, if Figures 4 to 6 As shown, a through slot 302 is provided on the second slider seat 300, guide recesses 303 are formed on both sides of the through slot 302, the core pulling seat 401 is located on the through slot 302, and guide protrusions 403 are provided on both sides of the core pulling seat 401, and the guide protrusions 403 are slidably connected with the guide recesses 303.

[0034] The end of the core pulling rod 400 away from the core pulling seat 401 has an arc-shaped inwardly concave surface, and the concave surface is in contact with the outer wall of the core rod 201. The core pulling seat 401 is located on the through groove 302 and slides on the through groove 302, and guide recesses 303 are formed on both sides of the through groove 302. Guide protrusions 403 adapted to the guide recesses 303 are arranged on both sides of the core pulling seat 401. When the core pulling seat 401 is located on the through groove 302, the guide protrusions 403 on both sides of the core pulling seat 401 are respectively in the guide recesses 303 on both sides of the through groove 302, so that the core pulling cylinder 402 drives the core pulling seat 401 to move stably on the second slider seat 300, so that the concave surface of the end of the core pulling rod 400 away from the core pulling seat 401 can be accurately in contact with the outer wall of the core rod 201, so that the subsequent product perforation can be effectively formed.

[0035] Furthermore, if Figure 5 and Figure 6 As shown, the core pulling assembly 4 has a sensor element 404 , which is disposed on the second slider seat 300 and extends into the core pulling rod 400 .

[0036] In this embodiment, the sensing element 404 is configured as a sensor, and a material hole is opened inside the core pulling rod 400. The sensing element 404 is arranged on the second slider seat 300 and extends into the material hole in the core pulling rod 400 until the end of the core pulling rod 400 is away from the core pulling seat 401. Then, when the concave surface of the end of the core pulling rod 400 away from the core pulling seat 401 is in contact with the outer wall of the core rod 201, the sensor can receive a signal to stop the action of the core pulling cylinder 402, thereby ensuring that the core pulling rod 400 will not damage the core rod 201.

[0037] Specifically, Figure 3As shown, the core pulling assembly 4 has a core pulling guide sleeve 405 , which is disposed on the first slider 200 , and the core pulling rod 400 is slidably connected to the core pulling guide sleeve 405 .

[0038] A through hole is provided on the first slider 200, and the core pulling guide sleeve 405 is connected to the first slider 200 by bolts, so that the core pulling guide sleeve 405 is in the through hole. The core pulling guide sleeve 405 can provide further guidance for the movement of the core pulling rod 400, so that the concave surface of the end of the core pulling rod 400 away from the core pulling seat 401 is precisely attached to the outer wall of the core rod 201.

[0039] Furthermore, if Figure 1 and Figure 2 As shown, the axial direction of the core pulling rod 400 is perpendicular to the axial direction of the core rod 201 .

[0040] The moving direction of the first slider 200 is perpendicular to the moving direction of the second slider 301, so that after the first slider 200 moves into the mold to a preset position, the second slider 301 moves into the mold to a preset position, and the side wall of the second slider 301 will fit with the side wall of the first slider 200. The axial direction of the core rod 201 is the same as the moving direction of the first slider 200. Then, after the core pulling rod 400 moves toward the inner side of the inner mold, it can be accurately attached to the outer wall of the core rod 201, thereby forming the through holes required for the molded product.

[0041] Specifically, Figure 1 and Figure 2 As shown, the second sliding assembly 3 is provided with a second sliding cylinder 304 , which is provided on the movable mold assembly 1 , and a driving end of the second sliding cylinder 304 is connected to the second slider seat 300 .

[0042] The second sliding cylinder 304 is disposed on the movable mold assembly 1 , and the second sliding cylinder 304 can stably drive the second slider seat 300 to move, thereby achieving the abutment between the core pulling rod 400 and the core rod 201 .

[0043] Specifically, Figure 6 As shown, a connecting portion 406 is formed at the end of the core pulling rod 400 away from the core rod 201, the connecting portion 406 is connected to the core pulling seat 401 by bolts, and a positioning groove 407 is provided on the connecting portion 406, and a positioning block 408 is provided on the end of the core pulling seat 401 away from the core pulling cylinder 402, and the positioning block 408 is connected to the positioning groove 407.

[0044] The positioning groove 407 on the connecting portion 406 and the positioning block 408 on the core pulling seat 401 are first engaged with each other and clamped together for precise positioning, and then the connecting portion 406 and the core pulling seat 401 are connected and fixed by bolts to ensure that when the core pulling seat 401 moves on the second slider seat 300, the concave surface of the end of the core pulling rod 400 away from the core pulling seat 401 can be accurately attached to the outer wall of the core rod 201.

[0045] Furthermore, if Figure 2 As shown, a first limiting surface 409 is provided on the connecting portion 406, and a second limiting surface 305 is provided on the second slider seat 300. When the core pulling seat 401 drives the core pulling rod 400 to move on the second slider seat 300, and the first limiting surface 409 and the second limiting surface 305 are in the same horizontal plane, the core pulling rod 400 abuts against the core rod 201.

[0046] A limiting member (not shown in the figure) is provided on the movable mold assembly 1, and the core pulling seat 401 drives the core pulling rod 400 to move toward the inside of the mold on the second slider seat 300, and when the first limiting surface 409 abuts against the limiting member for limiting, the first limiting surface 409 and the second limiting surface 305 are in the same horizontal plane, further ensuring that the core pulling rod 400 can move to a preset position when the mold is closed, and will not damage the core rod 201.

[0047] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0048] In addition, in the present invention, the descriptions of "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0049] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A core pulling and inserting mechanism for a die casting mold, characterized in that: include: A movable mold assembly, a first sliding assembly and a second sliding assembly, wherein the movable mold assembly is provided with a movable mold core, wherein: The first sliding assembly comprises a first slider and a core rod, the core rod passes through the first slider, the second sliding assembly comprises a second slider seat and a second slider, the second slider is connected to the second slider seat; A core pulling assembly, the core pulling assembly is arranged on the second sliding assembly, the core pulling assembly has a core pulling rod, the core pulling rod is movably arranged on the second slider seat, and the core pulling rod can movably penetrate the second slider seat, the dynamic model core and the first slider; When the external fixed model core and the movable model core, the first slider and the second slider form a product cavity, the core pulling rod can move relative to the second slider seat, so that the core pulling rod passes through the second slider seat, the movable model core and the first slider in sequence and abuts against the core rod.

2. The core-pulling and inserting mechanism of a die-casting mold according to claim 1, characterized in that: The core pulling assembly comprises a core pulling seat and a core pulling cylinder, the core pulling rod is detachably connected to the core pulling seat, the core pulling cylinder is arranged on the second sliding assembly, and the driving end of the core pulling cylinder is connected to the core pulling seat.

3. The core pulling and inserting mechanism of a die casting mold according to claim 2, characterized in that: The second slider seat is provided with a through slot, and guide recesses are formed on both sides of the through slot. The core pulling seat is located on the through slot, and guide protrusions are provided on both sides of the core pulling seat. The guide protrusions are slidably connected with the guide recesses.

4. The core-pulling and inserting mechanism of a die-casting mold according to claim 3, characterized in that: The core pulling assembly has a sensor element, which is arranged on the second slider seat and extends into the core pulling rod.

5. The core pulling and inserting mechanism of a die casting mold according to claim 1, characterized in that: The core pulling assembly comprises a core pulling guide sleeve, the core pulling guide sleeve is arranged on the first sliding block, and the core pulling rod is slidably connected with the core pulling guide sleeve.

6. The core-pulling and inserting mechanism of a die-casting mold according to claim 5, characterized in that: The axis direction of the core pulling rod is perpendicular to the axis direction of the core rod.

7. The core-pulling and inserting mechanism of a die-casting mold according to claim 1, characterized in that: The second sliding assembly is provided with a second sliding cylinder, the second sliding cylinder is provided on the movable mold assembly, and the driving end of the second sliding cylinder is connected to the second sliding block seat.

8. The core-pulling and inserting mechanism of a die-casting mold according to claim 2, characterized in that: A connecting portion is formed at the end of the core pulling rod away from the core rod, and the connecting portion is connected to the core pulling seat by bolts, and a positioning groove is arranged on the connecting portion. A positioning block is arranged on the end of the core pulling seat away from the core pulling cylinder, and the positioning block is connected to the positioning groove.

9. The core-pulling and inserting mechanism of a die-casting mold according to claim 8, characterized in that: A first limiting surface is provided on the connecting portion, and a second limiting surface is provided on the second slider seat. When the core pulling seat drives the core pulling rod to move on the second slider seat, and the first limiting surface and the second limiting surface are in the same horizontal plane, the core pulling rod abuts against the core rod.

Images