Thin-wall part die-casting die with auxiliary mechanism

Abstract

The utility model belongs to the technical field of die-casting dies, and particularly relates to a thin-wall part die-casting die with an auxiliary mechanism, which comprises a base, a fixed die is arranged in the middle of the upper end of the base, guide columns are fixedly connected to four corners of the upper end of the base, and a top plate is fixedly connected to the tops of the guide columns. A hydraulic cylinder is fixedly mounted in the middle of the upper end of the top plate, a piston rod of the hydraulic cylinder penetrates through the top plate and is slidably connected with the top plate, a push plate is fixedly connected to the tail end of the piston rod and slidably connected with the guide columns, and a supporting rod is fixedly connected to the bottom of the push plate. The linkage ring driven by the motor, the threaded rod and the threaded sleeve to ascend and descend is arranged in the movable mold of the mold, the annular top ring is fixed to the bottom of the linkage ring through the sliding rod, after a product in the mold is cooled and formed, the product attached to the movable mold can be pushed away through the top ring, and therefore the purpose of assisting demolding is achieved; the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of die casting moulds, in particular to a thin-walled part die casting mould with an auxiliary mechanism. Background Art

[0002] The die casting mold is a liquid forging method, and its basic process is: the molten metal is first cast and filled into the mold cavity at a low speed or a high speed, and the mold has a movable cavity surface. It is pressurized and forged with the cooling process of the molten metal, which not only eliminates the shrinkage and shrinkage defects of the blank, but also makes the internal structure of the blank reach the broken grains of the forged state. For example, the invention patent with the publication number CN110421141A discloses a thin-walled die casting mold, including a base, a fixed mold assembly, a movable mold assembly, a limiting assembly, an ejection assembly, a cooling assembly, a filling assembly and an exhaust assembly. The fixed mold assembly and the movable mold assembly are relatively arranged at the upper end of the base, and the limiting assembly is arranged in a plurality of pieces. The ejection assembly is arranged on the fixed mold assembly and the ejection assembly is fixedly connected to the movable mold assembly. The cooling assembly is arranged inside the fixed mold assembly, and the filling assembly and the exhaust assembly are respectively installed at the lower end and the upper end of the fixed mold assembly.

[0003] However, when the existing thin-wall die-casting mold is used, the gap between the product and the mold is small, which makes it difficult for the product to be separated from the mold, affecting the production efficiency. In addition, due to the continuous production of the die-casting mold, the guide column is easy to wear, thus affecting the smoothness of the die-casting process. Therefore, improvements are needed. Utility Model Content

[0004] The utility model aims to provide a thin-walled die-casting mold with an auxiliary mechanism, which solves the problem that when the existing thin-walled die-casting mold is in use, the gap between the product and the mold is small, which makes it difficult for the product to separate from the mold, thereby affecting the production efficiency. At the same time, it solves the problem that due to the continuous production of the die-casting mold, the column used for guiding is easy to wear, thereby affecting the smoothness of the die-casting process.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a die-casting mold for thin-walled parts with an auxiliary mechanism, comprising a base, a fixed mold is arranged in the middle of the upper end of the base, the four corners of the upper end of the base are fixedly connected with guide columns, and the tops of the guide columns are commonly fixedly connected with a top plate, a hydraulic cylinder is fixedly installed in the middle of the upper end of the top plate, the piston rod of the hydraulic cylinder passes through the top plate and is slidably connected to the top plate, the end of the piston rod is fixedly connected with a push plate, and the push plate is slidably connected to the guide column, and the bottom of the push plate is fixedly connected with A support rod, and the bottom of the support rod is fixedly connected to a movable mold, the lower end of the movable mold is slidably connected to a top ring, the upper end of the top ring is fixedly connected to a sliding rod, the sliding rod is slidably connected to the movable mold, a spring is sleeved on the outer side of the rod body of the sliding rod, a linkage ring is fixedly connected to the inside of the sliding rod, and the linkage ring is slidably connected to the inside of the movable mold, an electric motor is arranged on the inner top of the movable mold, the end of the output shaft of the electric motor is fixedly connected to a threaded rod, the outer side of the threaded rod is threadedly connected to a threaded sleeve, and the threaded sleeve is fixedly connected to the linkage ring.

[0006] Preferably, the number of the support rods is four, and the four support rods are evenly distributed at the bottom of the push plate. The arrangement of the support rods facilitates the push plate to fix the movable mold.

[0007] Preferably, a flow channel is provided inside the movable mold, and an annular cavity is provided inside the movable mold. The expansion and contraction of the annular cavity facilitates the accommodation of components such as the motor and the linkage ring.

[0008] Preferably, one end of the spring is fixedly connected to the top ring, and the other end of the spring is fixedly connected to the inner surface of the movable mold. By setting the spring, the elastic force can be applied to the top ring.

[0009] Preferably, a guide sleeve is fixedly connected to the left side of the upper end of the linkage ring, a guide rod is slidably connected to the inner side of the guide sleeve, and the top of the guide rod is fixedly connected to the inner surface of the movable mold. The setting of the guide sleeve and the guide rod has a guiding effect on the lifting of the linkage ring.

[0010] Preferably, a hollow sleeve is fixedly connected to the outer side of the upper section of the column of the guide column, the top of the hollow sleeve is fixedly connected to the top plate, the bottom of the hollow sleeve is in contact with the push plate, a through hole is provided on the inner wall of the hollow sleeve, a slip ring and a sponge block are slidably connected to the inner side of the hollow sleeve, and the slip ring and the sponge block are in contact, and a push pin is slidably connected to the lower end of the hollow sleeve, one end of the push pin is in contact with the slip ring, and the other end of the push pin is fixedly connected to the push plate. When the push plate moves upward, the push pin on the push plate will be inserted into the hollow sleeve, and push the slip ring to squeeze the sponge block, thereby squeezing out the lubricating oil stored in the sponge block.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model sets a linkage ring driven to rise and fall by a motor, a threaded rod and a threaded sleeve in the movable mold of the mold. An annular top ring is fixed to the bottom of the linkage ring through a sliding rod. When the product in the mold is cooled and formed, the product attached to the movable mold can be pushed away by the top ring, thereby achieving the purpose of auxiliary demoulding and improving production efficiency.

[0013] 2. The utility model provides a hollow sleeve on the upper section of the guide column of the mold, and a sponge block with lubricating oil is provided in the hollow sleeve. When the push plate used to fix the movable mold rises and resets, the ejector pin on the push plate will be inserted into the hollow sleeve, and the sliding ring will be pushed to squeeze the sponge block, thereby squeezing out the lubricating oil stored in the sponge block, thereby lubricating the push plate and the guide column, thereby ensuring smooth mold closing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0015] Figure 2 For the utility model Figure 1 A front cross-sectional view of

[0016] Figure 3 For the utility model Figure 1 A magnified view of the local structure;

[0017] Figure 4 For the utility model Figure 2 A-section structure enlarged view.

[0018] In the figure: 1. base; 2. fixed mold; 3. guide column; 4. ejector plate; 5. hydraulic cylinder; 6. push plate; 7. support rod; 8. movable mold; 9. runner; 10. ejector ring; 11. slide rod; 12. spring; 13. linkage ring; 14. motor; 15. threaded rod; 16. threaded sleeve; 17. guide sleeve; 18. guide rod; 19. hollow sleeve; 20. slip ring; 21. through hole; 22. sponge block; 23. ejector pin. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only 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 creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3A die-casting mold for thin-walled parts with an auxiliary mechanism includes a base 1, a fixed mold 2 is arranged in the middle of the upper end of the base 1, the four corners of the upper end of the base 1 are fixedly connected with guide columns 3, and the top of the guide columns 3 is fixedly connected with a top plate 4, a hydraulic cylinder 5 is fixedly installed in the middle of the upper end of the top plate 4, the piston rod of the hydraulic cylinder 5 passes through the top plate 4 and is slidably connected with the top plate 4, the end of the piston rod is fixedly connected with a push plate 6, and the push plate 6 is slidably connected with the guide column 3, and the bottom of the push plate 6 is fixedly connected with a support rod 7, the number of the support rods 7 is four, and the four support rods 7 are evenly distributed at the bottom of the push plate 6. Through the arrangement of the support rods 7, it is convenient for the push plate 6 to fix the movable mold 8, and the bottom of the support rods 7 is fixedly connected with the movable mold 8, the inside of the movable mold 8 is provided with a flow channel 9, and the inside of the movable mold 8 is provided with an annular cavity. Through the expansion and contraction of the annular cavity, it is convenient to accommodate components such as the motor 14 and the linkage ring 13.

[0021] See also Figure 2 , Figure 3 The lower end of the movable mold 8 is slidably connected to a top ring 10, and the upper end of the top ring 10 is fixedly connected to a slide bar 11, which is slidably connected to the movable mold 8. A spring 12 is sleeved on the outer side of the rod body of the slide bar 11, one end of the spring 12 is fixedly connected to the top ring 10, and the other end of the spring 12 is fixedly connected to the inner surface of the movable mold 8. Through the setting of the spring 12, the elastic force can be applied to the top ring 10, and the inner side of the slide bar 11 is fixedly connected to a linkage ring 13, and the linkage ring 13 is slidably connected to the inner side of the movable mold 8. A motor 14 is arranged on the inner top of the movable mold 8, and the end of the output shaft of the motor 14 is fixedly connected to a threaded rod 15, and the outer side of the threaded rod 15 is threadedly connected to a threaded sleeve 16, and the threaded sleeve 16 is fixedly connected to the linkage ring 13. A guide sleeve 17 is fixedly connected to the left side of the upper end of the linkage ring 13, and a guide rod 18 is slidably connected to the inner side of the guide sleeve 17, and the top of the guide rod 18 is fixedly connected to the inner surface of the movable mold 8. The arrangement of the guide sleeve 17 and the guide rod 18 has a guiding effect on the lifting and lowering of the linkage ring 13 .

[0022] See also Figure 2 , Figure 4 A hollow sleeve 19 is fixedly connected to the outer side of the upper section of the column of the guide column 3, the top of the hollow sleeve 19 is fixedly connected to the top plate 4, the bottom of the hollow sleeve 19 contacts the push plate 6, a through hole 21 is provided on the inner wall of the hollow sleeve 19, a slip ring 20 and a sponge block 22 are slidably connected to the inner side of the hollow sleeve 19, and the slip ring 20 and the sponge block 22 are in contact, and a top pin 23 is slidably connected to the lower end of the hollow sleeve 19, one end of the top pin 23 contacts the slip ring 20, and the other end of the top pin 23 is fixedly connected to the push plate 6. When the push plate 6 moves upward, the top pin 23 on the push plate 6 will be inserted into the hollow sleeve 19, and push the slip ring 20 to squeeze the sponge block 22, thereby squeezing out the lubricating oil stored in the sponge block 22.

[0023] The specific implementation process of the utility model is as follows: when in use, the hydraulic cylinder 5 pushes the push plate 6 downward, and the push plate 6 pushes the movable mold 8 downward through the support rod 7, so that it is molded with the fixed mold 2 and then the thin-walled parts are die-cast. Then the hydraulic cylinder 5 drives the movable mold 8 to separate from the fixed mold 2, and then the motor 14 drives the threaded rod 15 to rotate, and the threaded rod 15 moves downward through the relative threaded movement with the threaded sleeve 16, and then the linkage ring 13 moves downward under the guidance of the guide rod 18 and the guide sleeve 17, and the linkage ring 13 pushes the top ring 10 downward through the slide rod 11, and the top ring 10 will assist the demoulding of the product attached to the movable mold 8, thereby improving the production efficiency, and when the hydraulic cylinder 5 drives the push plate 6 to rise and reset, the push pin 23 on the push plate 6 will be inserted into the hollow sleeve 19, and push the slide ring 20 to squeeze the sponge block 22, so that the lubricating oil stored in the sponge block 22 is squeezed out, thereby lubricating the push plate 6 and the guide column 3, thereby ensuring the smoothness of the mold closing.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A die-casting mold for thin-walled parts with an auxiliary mechanism, comprising a base (1), characterized in that: A fixed mold (2) is provided at the middle of the upper end of the base (1), and the four corners of the upper end of the base (1) are fixedly connected to guide columns (3), and the tops of the guide columns (3) are commonly fixedly connected to a top plate (4), and a hydraulic cylinder (5) is fixedly installed at the middle of the upper end of the top plate (4), and the piston rod of the hydraulic cylinder (5) penetrates the top plate (4) and is slidably connected to the top plate (4), and the end of the piston rod is fixedly connected to a push plate (6), and the push plate (6) is slidably connected to the guide column (3), and the bottom of the push plate (6) is fixedly connected to a support rod (7), and the bottom of the support rod (7) is fixedly connected to a movable mold (8), and the lower end of the movable mold (8) is slidably connected to the inside A top ring (10) is provided, the upper end of the top ring (10) is fixedly connected to a slide rod (11), the slide rod (11) is slidably connected to a movable mold (8), a spring (12) is sleeved on the outer side of the rod body of the slide rod (11), a linkage ring (13) is fixedly connected to the inside of the slide rod (11), and the linkage ring (13) is slidably connected to the inside of the movable mold (8), an electric motor (14) is provided at the inner top of the movable mold (8), a threaded rod (15) is fixedly connected to the end of the output shaft of the electric motor (14), a threaded sleeve (16) is threadedly connected to the outer side of the threaded rod (15), and the threaded sleeve (16) is fixedly connected to the linkage ring (13).

2. A thin-walled die-casting mold with an auxiliary mechanism according to claim 1, characterized in that: The number of the support rods (7) is four, and the four support rods (7) are evenly distributed at the bottom of the push plate (6).

3. A thin-walled die-casting mold with an auxiliary mechanism according to claim 1, characterized in that: A flow channel (9) is arranged inside the movable mold (8), and an annular cavity is opened inside the movable mold (8).

4. A thin-walled die-casting mold with an auxiliary mechanism according to claim 1, characterized in that: One end of the spring (12) is fixedly connected to the top ring (10), and the other end of the spring (12) is fixedly connected to the inner surface of the movable mold (8).

5. The thin-walled die-casting mold with an auxiliary mechanism according to claim 1, characterized in that: A guide sleeve (17) is fixedly connected to the left side of the upper end of the linkage ring (13), a guide rod (18) is slidably connected to the inner side of the guide sleeve (17), and the top of the guide rod (18) is fixedly connected to the inner surface of the movable mold (8).

6. A thin-walled die-casting mold with an auxiliary mechanism according to claim 1, characterized in that: A hollow sleeve (19) is fixedly connected to the outer side of the upper section of the column body of the guide column (3); the top of the hollow sleeve (19) is fixedly connected to the top plate (4); the bottom of the hollow sleeve (19) is in contact with the push plate (6); a through hole (21) is provided on the inner wall of the hollow sleeve (19); a slip ring (20) and a sponge block (22) are slidably connected to the inner side of the hollow sleeve (19), and the slip ring (20) and the sponge block (22) are in contact; a push pin (23) is slidably connected to the lower end of the hollow sleeve (19); one end of the push pin (23) contacts the slip ring (20), and the other end of the push pin (23) is fixedly connected to the push plate (6).

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