Automatic core-pulling mold

Abstract

The utility model relates to the technical field of casting molds, and discloses an automatic core-pulling mold which comprises a base, the upper surface of the base is fixedly connected with a top frame and a fixed seat, the upper surface of the fixed seat is fixedly connected with a double-head motor, the output end of the double-head motor is fixedly connected with a crank, and the crank is fixedly connected with a motor. Connecting rods are rotatably connected to the side walls of the cranks, connecting blocks are rotatably connected to one sides of the connecting rods, top plates are fixedly connected to the side walls of the connecting blocks, limiting sleeves are fixedly connected to the upper surfaces of the top plates, and ejector rods are slidably connected to the interiors of the limiting sleeves. According to the automatic core-pulling mechanism, the double-end motor, the crank, the connecting rod, the connecting block, the ejector plate, the limiting sleeve, the ejector rod and the first spring are matched, so that the automatic core-pulling effect is achieved, the problem that material taking is inconvenient after shaping is completed due to the fact that part of upper molds are single in structure is solved, and the working efficiency during material taking is improved through the structure.

Description

Technical Field

[0001] The utility model relates to the technical field of casting molds, in particular to an automatic core-pulling mold. Background Art

[0002] A mold, also known as a model, a mold, or a molding tool, is a tool used to manufacture a part or product of a specific shape. Molds are usually made of metal, plastic, or other materials and are designed and manufactured according to the desired final product shape and specifications. Molds play a key role in a variety of manufacturing fields, including plastic molding, metal die casting, glass molding, etc.

[0003] After searching, a Chinese patent document with the announcement number: CN211614286U discloses a core pulling mold, including a base, a first core pulling, a cooling insert, a water outlet assembly and a water inlet assembly. The first core pulling is provided with a cooling inner cavity, and the cooling insert is in the cooling inner cavity and forms a cooling channel with the side wall of the cooling inner cavity close to the pouring channel; the core pulling mold of the utility model is provided with a cooling insert in the cooling inner cavity, and the cooling insert and the side wall of the cooling inner cavity form a cooling channel, and the cooling channel is provided on the same side as the pouring channel, and the cooling channel can change the reflux route of the cooling water. The cooling water can flow on the side of the cooling inner cavity close to the pouring channel and return to the water outlet assembly through the cooling channel, thereby ensuring the cooling effect of the core pulling mold close to the pouring channel, ensuring that the side away from the pouring channel and the side close to the pouring channel are cooled evenly during product casting, thereby improving the casting quality of the product. However, the patent does not take into account the problem that it is inconvenient to take the material after the shaping is completed. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides an automatic core-pulling mold, which aims to improve the problem that some upper molds are inconvenient to remove materials after shaping is completed due to their relatively simple structure.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: an automatic core-pulling mold, comprising a base, the upper surface of the base is fixedly connected to a top frame, the upper surface of the base is fixedly connected to a fixed seat, the upper surface of the fixed seat is fixedly connected to a double-headed motor, the output ends of the double-headed motor are fixedly connected to cranks, the side walls of the cranks are rotatably connected to connecting rods, one side of the connecting rod is rotatably connected to a connecting block, the side walls of the connecting blocks are fixedly connected to a top plate, the upper surface of the top plate is fixedly connected to a limiting sleeve, the inside of the limiting sleeve is slidably connected to a push rod, a first spring is arranged inside the limiting sleeve, one end of the first spring is fixedly connected to the side wall of the push rod, the other end of the first spring is fixedly connected to the inside of the limiting sleeve, and a limiting component is arranged on the side wall of the top plate.

[0006] Furthermore, the limiting assembly includes a limiting ring, a side wall of the limiting ring is fixedly connected to the side wall of the top plate, and an inner side wall of the limiting ring is slidably connected to the side wall of the top frame.

[0007] Furthermore, a hydraulic rod is fixedly connected inside the top frame, and a pressure plate is fixedly connected to the output end of the hydraulic rod.

[0008] Furthermore, the side wall of the pressure plate is fixedly connected with a side plate, and a sliding rod is slidably connected inside the side plate.

[0009] Furthermore, a pull ring is fixedly connected to the upper surface of the slide rod, and a second spring is sleeved on the side wall of the slide rod.

[0010] Furthermore, one end of the second spring is fixedly connected to the pull ring side wall, and the other end of the second spring is fixedly connected to the side plate side wall.

[0011] Furthermore, a slider is slidably connected inside the pressure plate, a concave hole is opened inside the slider, the side wall of the slide rod is slidably connected inside the concave hole, and the lower surface of the slider is fixedly connected to an upper mold.

[0012] Furthermore, the side wall of the top frame is fixedly connected with a lower mold base.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, the automatic core pulling effect is achieved through the cooperation between the double-headed motor, the crank, the connecting rod, the connecting block, the top plate, the limiting sleeve, the top rod and the first spring, and the problem that some upper molds are inconvenient to remove materials after the shaping is completed due to their relatively simple structure is solved. The work efficiency during material removal is improved through the above structure.

[0015] 2. In the utility model, the cooperation among the pressure plate, the side plate, the sliding rod, the second spring, the pull ring, the slider, the upper mold and the concave hole achieves the effect of facilitating the replacement of the upper mold, solves the problem that the connection of some upper mold structures is relatively fixed, resulting in inconvenience for replacement and maintenance in the later stage, and improves the practicality of the equipment through the above structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of an automatic core-pulling mold proposed by the utility model;

[0017] Figure 2 This is a base structure diagram of an automatic core-pulling mold proposed by the utility model;

[0018] Figure 3 The present invention is a structural diagram of a pressing plate of an automatic core-pulling mold proposed by the utility model.

[0019] Legend:

[0020] 1. Base; 2. Top frame; 3. Fixed seat; 4. Double-head motor; 5. Crank; 6. Connecting rod; 7. Connecting block; 8. Top plate; 9. Limit sleeve; 10. Top rod; 11. First spring; 12. Limit ring; 13. Hydraulic rod; 14. Press plate; 15. Side plate; 16. Sliding rod; 17. Second spring; 18. Pull ring; 19. Sliding block; 20. Upper mold; 21. Concave hole; 22. Lower mold base. DETAILED DESCRIPTION

[0021] 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.

[0022] Reference Figure 1 and Figure 2 , an embodiment of the utility model provides: an automatic core-pulling mold, including a base 1, a top frame 2 is fixedly connected to the upper surface of the base 1, a fixed seat 3 is fixedly connected to the upper surface of the base 1, a double-headed motor 4 is fixedly connected to the upper surface of the fixed seat 3, the output ends of the double-headed motor 4 are fixedly connected to cranks 5, the side walls of the cranks 5 are rotatably connected to connecting rods 6, one side of the connecting rod 6 is rotatably connected to a connecting block 7, the side wall of the connecting block 7 is fixedly connected to a top plate 8, the upper surface of the top plate 8 is fixedly connected to a limiting sleeve 9, a top rod 10 is slidably connected inside the limiting sleeve 9, a first spring 11 is arranged inside the limiting sleeve 9, one end of the first spring 11 is fixedly connected to the side wall of the top rod 10, the other end of the first spring 11 is fixedly connected to the inside of the limiting sleeve 9, a limiting assembly is arranged on the side wall of the top plate 8, the limiting assembly includes a limiting ring 12, the side wall of the limiting ring 12 is fixedly connected to the side wall of the top plate 8, and the inner side wall of the limiting ring 12 is slidably connected to the side wall of the top frame 2.

[0023] When using the equipment for work, the operator places the plate to be processed on the lower die seat 22, and then starts the hydraulic rod 13 to drive the pressure plate 14 to move downward. During this process, the upper die 20 will punch the plate placed on the lower die seat 22. After the punching work is completed, the material will fit into the inside of the lower die seat 22. At this time, the double-headed motor 4 is started to rotate the crank 5. The rotation of the crank 5 will further drive the connecting rod 6 to deflect, thereby pushing the top plate 8 upward. As the top plate 8 rises, the push rod 10 will be accurately inserted into the lower die seat 22. During this process, the push rod 10 will slide into the inside of the limiting sleeve 9, causing the first spring 11 to contract. By utilizing the elastic characteristics of the spring, the first spring 11 is compressed and stores energy during the rising process of the push rod 10. When the push rod 10 rises to a certain position, the first spring 11 will quickly reset and release the elastic force stored previously. The elastic force will quickly push out the material inside the lower die seat 22, thereby achieving the effect of automatic core pulling.

[0024] Reference Figure 3 A hydraulic rod 13 is fixedly connected inside the top frame 2, and a pressure plate 14 is fixedly connected to the output end of the hydraulic rod 13. A side plate 15 is fixedly connected to the side wall of the pressure plate 14. A sliding rod 16 is slidably connected inside the side plate 15. A pull ring 18 is fixedly connected to the upper surface of the sliding rod 16. A second spring 17 is sleeved on the side wall of the sliding rod 16. One end of the second spring 17 is fixedly connected to the side wall of the pull ring 18, and the other end of the second spring 17 is fixedly connected to the side wall of the side plate 15. A slider 19 is slidably connected inside the pressure plate 14. A concave hole 21 is opened inside the slider 19. The side wall of the sliding rod 16 is slidably connected inside the concave hole 21. An upper mold 20 is fixedly connected to the lower surface of the slider 19, and a lower mold base 22 is fixedly connected to the side wall of the top frame 2.

[0025] When the upper mold 20 needs to be replaced, the operator only needs to pull the pull ring 18 upwards, so that the slide bar 16 moves upwards and stretches the second spring 17. When the slide bar 16 is completely pulled out from the inside of the concave hole 21, the upper mold 20 can be easily pulled out from the inside of the pressing plate 14. When installing, slide the slider 19 connected to the new upper mold 20 into the inside of the pressing plate 14. When the slider 19 is fully inserted into the inside of the pressing plate 14, the operator can release the pull ring 18. At this time, the second spring 17 will lose its tension and reset, pushing the slide bar 16 back to the inside of the concave hole 21, and the new upper mold 20 is fixed in the pressing plate 14, completing the installation.

[0026] Working principle: When the equipment is used, the sheet is placed on the lower die seat 22, and then the hydraulic rod 13 is started to drive the pressing plate 14 to move downward, and then the sheet is punched through the upper die 20. When the punching is completed, the material will stay inside the lower die seat 22. At this time, the double-headed motor 4 is started to drive the crank 5 to rotate, so that the connecting rod 6 is deflected and the top plate 8 is pushed upward. At this time, the ejector rod 10 will be inserted into the lower die seat 22. At this time, the ejector rod 10 will slide into the inside of the limiting sleeve 9, causing the first spring 11 to contract. The elastic force generated by the reset of the first spring 11 will eject the material inside the lower die seat 22 , thereby achieving the effect of automatic core pulling. When the upper mold 20 needs to be replaced, the pull ring 18 is pulled upward to move the slide bar 16 upward, and the second spring 17 is stretched to pull the slide bar 16 out of the inside of the concave hole 21. At this time, the upper mold 20 is pulled out from the inside of the pressure plate 14 for replacement. During installation, the slider 19 connected to the new upper mold 20 is slid into the inside of the pressure plate 14. When the slider 19 is fully inserted into the inside of the pressure plate 14, the pull ring 18 is released. At this time, the second spring 17 loses its tension and resets, and the slide bar 16 is inserted back into the inside of the concave hole 21, so as to achieve the effect of fixing the upper mold 20 and complete the installation.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic core-pulling mold, comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly connected to a top frame (2); the upper surface of the base (1) is fixedly connected to a fixing seat (3); the upper surface of the fixing seat (3) is fixedly connected to a double-headed motor (4); the output ends of the double-headed motor (4) are fixedly connected to cranks (5); the side walls of the cranks (5) are rotatably connected to connecting rods (6); one side of the connecting rod (6) is rotatably connected to a connecting block (7); the side wall of the connecting block (7) is fixedly connected to a top plate (8); the upper surface of the top plate (8) is fixedly connected to a limiting sleeve (9); a top rod (10) is slidably connected inside the limiting sleeve (9); a first spring (11) is arranged inside the limiting sleeve (9); one end of the first spring (11) is fixedly connected to the side wall of the top rod (10); the other end of the first spring (11) is fixedly connected to the inside of the limiting sleeve (9); and a limiting component is arranged on the side wall of the top plate (8).

2. The automatic core-pulling mold according to claim 1, characterized in that: The limiting assembly comprises a limiting ring (12), the side wall of the limiting ring (12) being fixedly connected to the side wall of the top plate (8), and the inner side wall of the limiting ring (12) being slidably connected to the side wall of the top frame (2).

3. The automatic core-pulling mold according to claim 1, characterized in that: A hydraulic rod (13) is fixedly connected inside the top frame (2), and a pressure plate (14) is fixedly connected to the output end of the hydraulic rod (13).

4. The automatic core-pulling mold according to claim 3, characterized in that: The side wall of the pressure plate (14) is fixedly connected to a side plate (15), and a sliding rod (16) is slidably connected inside the side plate (15).

5. The automatic core-pulling mold according to claim 4, characterized in that: A pull ring (18) is fixedly connected to the upper surface of the slide rod (16), and a second spring (17) is sleeved on the side wall of the slide rod (16).

6. The automatic core-pulling mold according to claim 5, characterized in that: One end of the second spring (17) is fixedly connected to the side wall of the pull ring (18), and the other end of the second spring (17) is fixedly connected to the side wall of the side plate (15).

7. The automatic core-pulling mold according to claim 6, characterized in that: The pressing plate (14) is slidably connected to a slider (19), a recessed hole (21) is provided inside the slider (19), the side wall of the slide bar (16) is slidably connected inside the recessed hole (21), and an upper mold (20) is fixedly connected to the lower surface of the slider (19).

8. The automatic core-pulling mold according to claim 1, characterized in that: The side wall of the top frame (2) is fixedly connected with a lower die seat (22).

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