Die-casting die with anti-rotation function

Abstract

The utility model belongs to the field of dies, and provides a die-casting die with an anti-rotation function. The movable mold base is movably arranged below the fixed mold base, and after the fixed mold base is attached to the movable mold base, a product cavity is formed between the fixed mold base and the movable mold base; the core pulling rod and the forming column are arranged in the fixed mold base, and the forming column is connected to the core pulling rod so as to drive the forming column to stretch into or be separated from the product cavity; the locking block and the anti-rotation block are arranged in the fixed mold base, and the forming column is movably inserted into the locking block so as to limit the locking block from falling down along the bottom of the product cavity. Compared with the prior art, the anti-rotation structure has the advantages that the locking surface on the anti-rotation block abuts against the limiting surface on the core-pulling rod, so that the core-pulling rod is effectively prevented from rotating when driving the forming column to reciprocate, and meanwhile, the locking block is used for guiding and limiting the forming block; fluency and stability in the process that the core-pulling rod drives the forming column to form a product are improved, and it is ensured that the product quality is not affected.

Description

Technical Field

[0001] The utility model belongs to the field of molds, and in particular relates to a die-casting mold with an anti-rotation function. Background Art

[0002] With the rapid development of technology, the requirements for product quality are increasing day by day, and the stability of the molded product also determines whether the quality of the molded product can meet the use requirements.

[0003] In the prior art, a molding column is often inserted into a product cavity to mold the desired product, such as Figure 1 As shown, when the product molding position is located at a long distance from the product molding, a core pulling rod is often used to connect the molding column to achieve product molding. However, this method is often prone to shaking when the molding column is extended into the product cavity due to the long distance, and it is not easy to guide and position the molding column. At the same time, in the process of the core pulling rod driving the molding column, the rotation of the core pulling rod can easily affect the stability of the molding column in the process of molding the product, thereby reducing the qualified rate of product molding quality. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the utility model is: to propose a die-casting mold with an anti-rotation function, in which the locking surface on the anti-rotation block is pressed against the limiting surface on the core pulling rod, thereby effectively preventing the core pulling rod from rotating when the forming column moves back and forth. At the same time, the locking block is used to guide and limit the forming block, thereby improving the smoothness and stability of the process in which the core pulling rod drives the forming column to form the product, and ensuring that the product quality is not affected.

[0005] The utility model solves the technical problem by adopting a technical solution of providing a die-casting die with an anti-rotation function, comprising: a fixed die seat;

[0006] A movable mold base is movably arranged below the fixed mold base, and when the fixed mold base is fitted with the movable mold base, a product cavity is formed between the fixed mold base and the movable mold base;

[0007] A core pulling rod and a molding column are arranged in the fixed mold seat, and the molding column is connected to the core pulling rod to drive the molding column to extend into or out of the product cavity;

[0008] A locking block and an anti-rotation block are arranged in the fixed mold seat, and the molding column is movably inserted in the locking block to limit the locking block from falling along the bottom of the product cavity; a limited position surface is formed on the core pulling rod, and a locking surface is formed on the anti-rotation block, and the locking surface is movably pressed against the limit surface, so that when the core pulling rod drives the molding column to be inserted into the product cavity, the core pulling rod and the molding column are limited from rotating relative to the product cavity.

[0009] In the above-mentioned die-casting mold with anti-rotation function, a fixed mold core block is provided in the fixed mold seat, a T-slot is formed in the fixed mold core block, the anti-rotation block is T-shaped, and the anti-rotation block is detachably connected in the T-slot and movably pressed on the core pulling rod located at the bottom of the T-slot.

[0010] In the above-mentioned die-casting mold with anti-rotation function, a driving member is provided on the side wall of the fixed mold seat, and the driving end of the driving member is connected to the core pulling rod to drive the core pulling rod to drive the molding column to extend into or out of the product cavity.

[0011] In the above-mentioned die-casting mold with anti-rotation function, a mounting hole and a limiting hole are formed on the locking block, and the mounting hole can be connected to the fixed mold base through a fixing part; the molding column is movably inserted in the limiting hole to limit the end of the molding column away from the core pulling rod from falling along the bottom of the product cavity.

[0012] In the above-mentioned die-casting mold with anti-rotation function, a mounting groove is formed on the fixed mold seat, and a switching block is detachably connected to the mounting groove. The switching block can seal the mounting groove after the extrusion cylinder is disassembled.

[0013] In the above-mentioned die-casting mold with anti-rotation function, a water trough and a processing groove are formed on the switching block, and the processing groove is perpendicular to the water trough; an avoidance groove is formed in the fixed mold base, and the avoidance groove is connected to the water trough for the placement of a water pipe.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] (1) The utility model discloses a die-casting mold with an anti-rotation function. The locking surface on the anti-rotation block is movably pressed against the limiting surface on the core pulling rod, which effectively prevents the core pulling rod from driving the molding column to extend into the product cavity to form the product and causing the molding quality to rotate. At the same time, the locking block arranged in the fixed mold seat is sleeved on the molding column to have a certain guiding and limiting effect on the molding column, thereby preventing the end of the molding column from falling due to the long core pulling distance. The overall structure of the mold is simple. While improving the smoothness and stability of the core pulling rod driving the molding column to form the product, it also ensures that the qualified rate of the product molding quality is not affected.

[0016] (2) The switching block can be replaced when the mold does not use the extrusion cylinder, so as to improve the production efficiency of the die-casting mold, and the processing groove provides convenience for the processing and forming of the water tank on the switching block. At the same time, the avoidance groove is connected with the water tank to ensure the normal use of the water pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a view of the installation structure of the locking block, anti-rotation block, core pulling rod and forming column on the movable mold base;

[0018] Figure 2 It is an exploded view of the locking block, anti-rotation block, core pulling rod and forming column;

[0019] Figure 3 This is a view of the installation structure between the fixed model core block and the core pulling rod;

[0020] Figure 4 It is an exploded view between the switching block and the mold.

[0021] In the figure, 1, fixed die seat; 10, fixed die core block; 11, T-slot; 12, driving member; 13, mounting groove; 14, switching block; 140, water tank; 141, processing tank; 15, avoidance tank;

[0022] 2. Moving mold base; 20. Product cavity;

[0023] 3. Core pulling rod; 30. Limiting surface;

[0024] 4. Molding column;

[0025] 5. Locking block; 50. Mounting hole; 51. Limiting hole;

[0026] 6. Anti-rotation block; 60. Locking surface. DETAILED DESCRIPTION

[0027] 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.

[0028] like Figures 1 to 4 As shown, the utility model is a die-casting mold with an anti-rotation function, comprising: a fixed mold base 1; a movable mold base 2, which is movably arranged below the fixed mold base 1, and when the fixed mold base 1 and the movable mold base 2 are fitted, a product cavity 20 is formed between the fixed mold base 1 and the movable mold base 2; a core pulling rod 3 and a molding column 4, which are arranged in the fixed mold base 1, and the molding column 4 is connected to the core pulling rod 3 to drive the molding column 4 to extend into or out of the product cavity 20; a locking block 5 and an anti-rotation block 6, which are arranged in the fixed mold base 1, and the molding column 4 is movably inserted into the locking block 5 to limit the locking block 5 from falling along the bottom of the product cavity 20; a limited position surface 30 is formed on the core pulling rod 3, and a locking surface 60 is formed on the anti-rotation block 6, and the locking surface 60 is movably pressed against the limited position surface 30, so that when the core pulling rod 3 drives the molding column 4 to insert into the product cavity 20, the core pulling rod 3 and the molding column 4 are limited from rotating relative to the product cavity 20.

[0029] refer to Figure 1 and Figure 2In this solution, the position where the product needs to be molded in the product cavity 20 is located inside the mold, so the distance between the core pulling rod 3 and the entire molding rod is relatively long. Before the fixed mold base 1 and the movable mold base 2 perform the mold closing action, the core pulling rod 3 needs to drive the molding column 4 to extend into the product cavity 20 to mold the required product. Specifically, in this solution, a locking surface 60 is set on the anti-rotation block 6 in the fixed mold base 1, and the locking surface 60 is used to movably press against the upper limit surface 30 of the core pulling rod 3, thereby avoiding the process in which the molding column 4 extends into the product cavity 20 to form the product due to the rotation of the core pulling rod 3. The quality of product molding is affected. While the locking surface 60 limits the rotation of the core pulling rod 3, it can also play a guiding effect in the process of the core pulling rod 3 driving the molding column 4 to move back and forth. In addition, the present solution also sleeves the locking surface 60 on the fixed mold base 1 on the molding column 4 to ensure that when the molding column 4 extends into the product cavity 20 to mold the product, the molding column 4 close to the product cavity 20 will not fall due to the long overall distance. That is, the locking block 5 has a guiding and limiting effect on the molding column 4. On the basis of the simple structure of the die-casting mold, the core pulling rod 3 improves the smoothness and stability of the molding column 4 in the process of molding the product, while also ensuring that the qualified rate of the product molding quality is not affected.

[0030] A fixed mold core block 10 is provided in the fixed mold base 1, a T-slot 11 is formed in the fixed mold core block 10, the anti-rotation block 6 is T-shaped, and the anti-rotation block 6 is detachably connected in the T-slot 11 and movably pressed on the core pulling rod 3 located at the bottom of the T-slot 11.

[0031] Furthermore, in the present solution, a driving member 12 is provided on the side wall of the fixed mold base 1, and the driving end of the driving member 12 is connected to the core pulling rod 3. When the molding column 4 needs to extend into or out of the product cavity 20, the above function can be achieved through the driving member 12. It should be noted that the driving member 12 in the present solution can be a hydraulic drive, a cylinder drive or other driving devices.

[0032] Preferably, in the present embodiment, the locking surface 60 on the anti-rotation block 6 and the limiting surface 30 on the core pulling rod 3 are both planar arrangements. In addition, the mutually movable snap connection between the V-groove and the V-block can also be used to achieve the effect of limiting the rotation of the core pulling rod 3 and the forming column 4 in the present embodiment. Therefore, the technical solution is not limited to this one implementation, and other implementations should all be classified as one of the present embodiments.

[0033] The locking block 5 is formed with a mounting hole 50 and a limiting hole 51. The mounting hole 50 can be connected to the fixed mold base 1 through a fixing piece. The molding column 4 is movably inserted in the limiting hole 51 to limit the end of the molding column 4 away from the core pulling rod 3 from falling along the bottom of the product cavity 20.

[0034] refer to Figure 2 and Figure 3The locking block 5 in this solution is designed to be detachable. It should be noted that the fixed die base 1 is also provided with a mounting hole 50 (not shown in the figure) which is the same as the locking block 5. The locking block 5 is fixed by connecting members such as screws. It is worth noting that, referring to Figure 3 The locking block 5 is close to the middle position of the fixed mold base 1. This split design is convenient for disassembly and replacement, and also provides convenience for the processing of the upper limit hole 51 on the locking block 5, ensuring the accuracy of the limiting hole 51 in guiding and limiting the molding column 4, further improving the stability of the die-casting mold when injecting products.

[0035] A mounting groove 13 is formed on the fixed die seat 1, and a switching block 14 is detachably connected to the mounting groove 13. The switching block 14 can block the mounting groove 13 after the extrusion cylinder is disassembled.

[0036] In this embodiment, the extrusion cylinder on the fixed die seat 1 can be used to ensure the quality of product molding. However, when the die-casting mold itself meets the processing requirements of the product, the extrusion cylinder can be removed from the installation groove 13 in 4 and replaced with a switching block 14 to seal the installation groove 13 to prevent external dust or impurities from entering the mold and affecting the quality of product molding. Preferably, the switching block 14 is replaced only when the molded product is relatively stable, so as to reduce the production cycle of the mold and improve production efficiency.

[0037] A water trough 140 and a processing trough 141 are formed on the switching block 14 , and the processing trough 141 is perpendicular to the water trough 140 ; ​​an avoidance groove 15 is formed in the fixed mold base 1 , and the avoidance groove 15 is connected to the water trough 140 for placing a water pipe.

[0038] Further, refer to Figure 4 After disassembling the extrusion cylinder and replacing the switching block 14, the water trough 140 on the switching block 14 is connected to the avoidance groove 15 for the placement of the water pipe connected to the mold. In order to facilitate the processing of the water trough 140, the present solution is provided with a processing groove 141 perpendicular to the water trough 140 on the switching block 14. The processing groove 141 is conducive to retreating and making way for the water trough 140 during processing, providing convenience for the processing and manufacturing of the switching block 14. When the switching block 14 is installed in the installation groove 13, the processing groove 141 can be partially blocked by other blocking blocks (not shown in the figure), and the water trough 140 and the avoidance groove 15 can be used to store the water pipe.

[0039] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0040] 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.

[0041] 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.

[0042] 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 die-casting mold with anti-rotation function, characterized in that: include: Fixed mold base; A movable mold base is movably arranged below the fixed mold base, and when the fixed mold base is fitted with the movable mold base, a product cavity is formed between the fixed mold base and the movable mold base; A core pulling rod and a molding column are arranged in the fixed mold seat, and the molding column is connected to the core pulling rod to drive the molding column to extend into or out of the product cavity; A locking block and an anti-rotation block are arranged in the fixed mold seat, and the molding column is movably inserted in the locking block to limit the locking block from falling along the bottom of the product cavity; a limited position surface is formed on the core pulling rod, and a locking surface is formed on the anti-rotation block, and the locking surface is movably pressed against the limit surface, so that when the core pulling rod drives the molding column to be inserted into the product cavity, the core pulling rod and the molding column are limited from rotating relative to the product cavity.

2. The die-casting mold with anti-rotation function according to claim 1, characterized in that: A fixed mold core block is arranged in the fixed mold seat, a T-shaped slot is formed in the fixed mold core block, the anti-rotation block is arranged in a T shape, and the anti-rotation block is detachably connected in the T-shaped slot and movably pressed on the core pulling rod located at the bottom of the T-shaped slot.

3. The die-casting mold with anti-rotation function according to claim 1, characterized in that: A driving member is disposed on the side wall of the fixed mold seat, and a driving end of the driving member is connected to the core-pulling rod to drive the core-pulling rod to drive the molding column to extend into or out of the product cavity.

4. The die-casting mold with anti-rotation function according to claim 1, characterized in that: The locking block is formed with a mounting hole and a limiting hole, and the mounting hole can be connected to the fixed mold base through a fixing piece; the forming column is movably inserted in the limiting hole to limit the end of the forming column away from the core pulling rod from falling along the bottom of the product cavity.

5. The die-casting mold with anti-rotation function according to claim 1, characterized in that: A mounting groove is formed on the fixed die seat, and a switching block is detachably connected in the mounting groove. The switching block can block the mounting groove after the extrusion cylinder is disassembled.

6. The die-casting mold with anti-rotation function according to claim 5, characterized in that: A water trough and a processing trough are formed on the switching block, and the processing trough is perpendicular to the water trough; an avoidance groove is formed in the fixed mold base, and the avoidance groove is connected to the water trough for placing a water pipe.

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