Plastic part injection mold with ejection mechanism

Abstract

The utility model relates to the technical field of injection molds, and discloses a plastic part injection mold with an ejection mechanism, which comprises a workbench, a lower mold is arranged on the upper surface of the workbench, a second hydraulic rod is fixedly connected in the workbench, and the output end of the second hydraulic rod is fixedly connected with a sliding column. An auxiliary assembly is arranged in the workbench and used for assisting sliding of the sliding column, a first rack is fixedly connected to the side wall of the sliding column, a fixing plate is fixedly connected to the interior of the workbench, a rotating column is rotationally connected to the interior of the fixing plate, a first gear is fixedly connected to the side wall of the rotating column, and the first gear is meshed with the first rack. The side wall of the rotating column is fixedly connected with a second gear. According to the quick demolding device, the hydraulic rod I is started to push the sliding column to slide, drive the gear I to rotate and enable the gear II to drive the ejection column to slide, so that an injection molding part in the lower mold is ejected out through the push plate, the quick demolding effect is achieved, and the demolding efficiency of equipment is improved through the structure.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a plastic part injection mold with an ejection mechanism. Background Art

[0002] Plastic parts are a widely used manufacturing material. They can be created into products of various shapes and sizes through various molding processes. The manufacturing process typically includes steps such as material selection, molding, and surface treatment. Plastic parts can be categorized by molding method, such as injection molding, extrusion molding, and vacuum forming. Injection molds are tools used to produce plastic products, ensuring they achieve a complete structure and precise dimensions during the molding process. The design and manufacture of injection molds have a direct impact on the quality of plastic products.

[0003] Traditional plastic injection molds consist of an upper mold, a lower mold, and guide components. Plastic particles are heated to a molten state by an injection molding machine and then placed in the lower mold. The upper mold is then pressed down to extrude the molten plastic. The plastic cools and solidifies in the mold cavity, forming a plastic product with the same shape and size as the cavity. After cooling and solidification, the mold is opened and removed from the mold manually.

[0004] During the demolding process, traditional plastic injection molds have a strong adhesion between the mold and the product, and the mold's own demolding method is not convenient, resulting in low work efficiency. Therefore, a plastic injection mold with an ejection mechanism is proposed to solve the above problem. Summary of the Invention

[0005] In order to make up for the above shortcomings, the utility model provides a plastic part injection mold with an ejection mechanism, aiming to improve the problem in the existing technology that during the demoulding process, the mold itself is not convenient enough due to the strong adhesion between the mold and the product, resulting in low work efficiency.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] The injection mold for plastic parts with an ejection mechanism comprises a workbench, a lower mold is provided on the upper surface of the workbench, a hydraulic rod 2 is fixedly connected to the inside of the workbench, an output end of the hydraulic rod 2 is fixedly connected to a sliding column, an auxiliary component is provided inside the workbench for assisting the sliding of the sliding column, a side wall of the sliding column is fixedly connected to a rack 1, a fixed plate is fixedly connected to the inside of the workbench, a rotating column is rotatably connected to the inside of the fixed plate, a side wall of the rotating column is fixedly connected to a gear 1, the gear 1 is meshed with the rack 1, the side wall of the rotating column is fixedly connected to a gear 2, a top column is slidably connected to the inside of the workbench, the side wall of the top column is fixedly connected to a rack 2, the rack 2 is meshed with the gear 2, a push plate is fixedly connected to the upper surface of the top column, and the side wall of the push plate is slidably connected to the inside of the lower mold;

[0008] As a further description of the above technical solution:

[0009] The side wall of the workbench is fixedly connected to a mounting seat, the upper surface of the mounting seat is fixedly connected to a water tank, and the upper surface of the mounting seat is fixedly connected to a cooler;

[0010] As a further description of the above technical solution:

[0011] The auxiliary component includes a fixed block 1, and the side wall of the sliding column is slidably connected to the inside of the fixed block 1;

[0012] As a further description of the above technical solution:

[0013] The upper surface of the workbench is fixedly connected to a support column, the upper surface of the support column is fixedly connected to a top plate, the lower surface of the top plate is fixedly connected to a hydraulic rod 1, the output end of the hydraulic rod 1 is fixedly connected to an upper mold, and the side wall of the upper mold is slidably connected to the inside of the lower mold;

[0014] As a further description of the above technical solution:

[0015] A water pump is provided on the upper surface of the cooler, an input end of the water pump is fixedly connected to a connecting pipe, one end of the connecting pipe is fixedly connected to the inside of the water tank, and a piston is provided on the upper surface of the water tank;

[0016] As a further description of the above technical solution:

[0017] The output end of the water pump is fixedly connected to a delivery pipe 1, and one end of the delivery pipe 1 is fixedly connected to the interior of the cooler;

[0018] As a further description of the above technical solution:

[0019] The side wall of the cooler is fixedly connected to a second delivery pipe, and the side wall of the second delivery pipe is provided with a valve;

[0020] As a further description of the above technical solution:

[0021] The two side walls of the delivery pipe are fixedly connected to the inside of the lower mold, one end of the delivery pipe is fixedly connected to the inside of the water tank, the two side walls of the delivery pipe are fixedly connected to the fixed block 2, and the two side walls of the fixed block are fixedly connected to the upper surface of the workbench.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, by starting the hydraulic rod 1 to push the sliding column to slide, driving the gear 1 to rotate, and letting the gear 2 drive the ejector column to slide, and then the injection molded part inside the lower mold is ejected by the push plate, so as to achieve a quick demoulding effect, and solve the problem of low work efficiency in the demoulding process of some plastic injection molds due to the large adhesion between the mold and the product, and the mold itself is not convenient to demould. The above structure improves the demoulding efficiency of the equipment.

[0024] 2. In the utility model, the water tank is filled with water, and then the water pump is started to transport the water into the cooler for cooling. Subsequently, the valve is started to transport the cooled water into the lower mold through the second delivery pipe for cooling. The cooling effect is achieved, which solves the problem that some plastic injection molds usually adopt natural cooling after the injection molding is completed, resulting in the plastic parts cooling time in the mold being too long, thereby extending the entire molding cycle and reducing production efficiency. The above structure improves the working efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional schematic diagram of a plastic part injection mold with an ejection mechanism proposed by the present invention;

[0026] Figure 2 This is a schematic diagram of the structure inside the workbench of the plastic part injection mold with an ejection mechanism proposed by the present invention;

[0027] Figure 3 This is a structural schematic diagram of the push plate portion of the plastic part injection mold with an ejection mechanism proposed by the present invention;

[0028] Figure 4 This is a structural schematic diagram of the water tank portion of the plastic part injection mold with an ejection mechanism proposed by the present invention.

[0029] Legend:

[0030] 1. Workbench; 2. Support column; 3. Top plate; 4. Hydraulic rod 1; 5. Upper mold; 6. Lower mold; 7. Hydraulic rod 2; 8. Fixed block 1; 9. Sliding column; 10. Rack 1; 11. Fixed plate; 12. Rotating column; 13. Gear 1; 14. Gear 2; 15. Top column; 16. Rack 2; 17. Push plate; 18. Mounting seat; 19. Water tank; 20. Piston; 21. Cooler; 22. Connecting pipe; 23. Water pump; 24. Delivery pipe 1; 25. Delivery pipe 2; 26. Valve; 27. Fixed block 2. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Reference Figure 1-Figure 3 The utility model provides an embodiment of a plastic part injection mold with an ejection mechanism, comprising a workbench 1, a lower mold 6 is provided on the upper surface of the workbench 1, a hydraulic rod 2 7 is fixedly connected to the inside of the workbench 1, a sliding column 9 is fixedly connected to the output end of the hydraulic rod 2 7, an auxiliary component is provided inside the workbench 1 for assisting the sliding of the sliding column 9, a rack 10 is fixedly connected to the side wall of the sliding column 9, a fixed plate 11 is fixedly connected to the inside of the workbench 1, a rotating column 12 is rotatably connected to the inside of the fixed plate 11, a gear 13 is fixedly connected to the side wall of the rotating column 12, the gear 13 is meshed with the rack 10, and the side wall of the rotating column 12 is fixedly connected There is a gear 2 14, a top column 15 is slidably connected to the inside of the workbench 1, and a rack 2 16 is fixedly connected to the side wall of the top column 15, which is meshed with the gear 2 14. A push plate 17 is fixedly connected to the upper surface of the top column 15, and the side wall of the push plate 17 is slidably connected to the inside of the lower mold 6. The auxiliary component includes a fixed block 18, and the side wall of the sliding column 9 is slidably connected to the inside of the fixed block 18. The upper surface of the workbench 1 is fixedly connected to the support column 2, and the upper surface of the support column 2 is fixedly connected to the top plate 3. The lower surface of the top plate 3 is fixedly connected to the hydraulic rod 14, and the output end of the hydraulic rod 4 is fixedly connected to the upper mold 5. The side wall of the upper mold 5 is slidably connected to the inside of the lower mold 6;

[0033] When the cooling stage of the injection molding process is completed, in order to remove the molded injection molded part, first, the hydraulic rod 4 is started. The start of the hydraulic rod 4 will push the sliding column 9 to slide inside the fixed block 8. The movement of the sliding column 9 will drive the rack 10 to engage with the gear 13. The gear 13 starts to rotate under the push of the rack 10, and then drives the rotation of the rotating column 12. The rotation of the rotating column 12 causes the gear 2 14 to start rotating. The rotation of the gear 2 14 is connected to the ejector column 15 through the rack 2 16, so that the ejector column 15 slides under the guidance of the rack 2 16. The upward movement of the ejector column 15 pushes the push plate 17 to move upward, and finally the injection molded part inside the lower mold 6 is ejected. This series of processes ensures that the injection molded part can be demolded from the mold quickly and smoothly, greatly improving production efficiency. The evenly distributed ejection force of the push plate 17 can reduce the stress on the plastic part, avoiding deformation or damage caused by excessive or uneven ejection force.

[0034] Reference Figure 4 The side wall of the workbench 1 is fixedly connected to a mounting base 18, and the upper surface of the mounting base 18 is fixedly connected to a water tank 19. The upper surface of the mounting base 18 is fixedly connected to a cooler 21. A water pump 23 is provided on the upper surface of the cooler 21. The input end of the water pump 23 is fixedly connected to a connecting pipe 22, one end of the connecting pipe 22 is fixedly connected to the inside of the water tank 19, and a piston 20 is provided on the upper surface of the water tank 19. The output end of the water pump 23 is fixedly connected to a delivery pipe 1 24, one end of the delivery pipe 1 24 is fixedly connected to the inside of the cooler 21, and the side wall of the cooler 21 is fixedly connected to a delivery pipe 25. A valve 26 is provided on the side wall of the delivery pipe 25, and the side wall of the delivery pipe 25 is fixedly connected to the inside of the lower mold 6. One end of the delivery pipe 25 is fixedly connected to the inside of the water tank 19. The side wall of the delivery pipe 25 is fixedly connected to a fixed block 27, and the side wall of the fixed block 27 is fixedly connected to the upper surface of the workbench 1.

[0035] During the operation of the equipment for injection molding of plastic parts, when the injection molding process is completed, in order to ensure that the injection molded parts can be effectively cooled, it is first necessary to start the water pump 23. The function of the water pump 23 is to pump out the water in the water tank 19 and transport it to the inside of the cooler 21. After the water is successfully transported into the cooler 21, the valve 26 is opened next. The purpose of opening the valve 26 is to allow the cooling water treated by the cooler 21 to pass smoothly through the delivery pipe 25 and flow into the interior of the lower mold 6. The purpose of doing this is to effectively cool the lower mold 6, thereby ensuring that the injection molded parts can be cooled at an appropriate temperature. As the cooling process proceeds, the water that was originally at a higher temperature will gradually become hotter. The heated water will flow through the delivery pipe 25 and return to the inside of the water tank 19. Through such a circulation process, not only can the injection molded parts be effectively cooled, but also the full utilization of water resources can be ensured, achieving the effect of energy saving and environmental protection.

[0036] Working principle: When using the equipment to perform plastic part injection molding, when the injection molding is completed and the molded part needs to be cooled, first start the water pump 23 to pump out the water in the water tank 19 and transport it to the cooler 21, then open the valve 26 to allow the cooled water to pass through the delivery pipe 25 and enter the lower mold 6 to cool it. Finally, the hot water will flow into the water tank 19 along with the flow of the delivery pipe 25 to achieve a circulation effect. When the cooling is completed and the molded part needs to be taken out, first start the hydraulic rod 14 to push the sliding column 9 to slide inside the fixed block 18, so that the rack 10 pushes the gear 13 to rotate, and the rotating column 12 rotates. The rotation of the rotating column 12 drives the gear 2 14 to rotate, so that the ejector column 15 slides through the rack 2 16, and then pushes the push plate 17 upward to eject the molded part inside the lower mold 6, thereby achieving a quick demoulding effect.

[0037] 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 replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A plastic part injection mold with an ejection mechanism, comprising a workbench (1), characterized in that: The upper surface of the workbench (1) is provided with a lower mold (6), the workbench (1) is fixedly connected with a hydraulic rod 2 (7) inside, the output end of the hydraulic rod 2 (7) is fixedly connected with a sliding column (9), the workbench (1) is provided with an auxiliary component inside for assisting the sliding of the sliding column (9), the side wall of the sliding column (9) is fixedly connected with a rack 1 (10), the workbench (1) is fixedly connected with a fixed plate (11), the fixed plate (11) is rotatably connected with a rotating column (12), the rotating column (12) The side wall is fixedly connected to gear 1 (13), and the gear 1 (13) is meshed with the rack 1 (10). The side wall of the rotating column (12) is fixedly connected to gear 2 (14). The workbench (1) is slidably connected to a top column (15), and the side wall of the top column (15) is fixedly connected to rack 2 (16), and the rack 2 (16) is meshed with gear 2 (14). The upper surface of the top column (15) is fixedly connected to a push plate (17), and the side wall of the push plate (17) is slidably connected to the inside of the lower mold (6).

2. The plastic part injection mold with an ejection mechanism according to claim 1, characterized in that: The side wall of the workbench (1) is fixedly connected to a mounting seat (18), the upper surface of the mounting seat (18) is fixedly connected to a water tank (19), and the upper surface of the mounting seat (18) is fixedly connected to a cooler (21).

3. The plastic part injection mold with an ejection mechanism according to claim 1, characterized in that: The auxiliary component comprises a fixed block (8), and the side wall of the sliding column (9) is slidably connected inside the fixed block (8).

4. The plastic part injection mold with an ejection mechanism according to claim 1, characterized in that: The upper surface of the workbench (1) is fixedly connected to a support column (2), the upper surface of the support column (2) is fixedly connected to a top plate (3), the lower surface of the top plate (3) is fixedly connected to a hydraulic rod (4), the output end of the hydraulic rod (4) is fixedly connected to an upper mold (5), and the side wall of the upper mold (5) is slidably connected to the interior of the lower mold (6).

5. The plastic part injection mold with an ejection mechanism according to claim 2, characterized in that: A water pump (23) is provided on the upper surface of the cooler (21); an input end of the water pump (23) is fixedly connected to a connecting pipe (22); one end of the connecting pipe (22) is fixedly connected to the inside of the water tank (19); and a piston (20) is provided on the upper surface of the water tank (19).

6. The plastic part injection mold with an ejection mechanism according to claim 5, characterized in that: The output end of the water pump (23) is fixedly connected to a delivery pipe (24), and one end of the delivery pipe (24) is fixedly connected to the inside of the cooler (21).

7. The plastic part injection mold with an ejection mechanism according to claim 2, characterized in that: The side wall of the cooler (21) is fixedly connected to a second delivery pipe (25), and the side wall of the second delivery pipe (25) is provided with a valve (26).

8. The plastic part injection mold with an ejection mechanism according to claim 7, characterized in that: The side wall of the second delivery pipe (25) is fixedly connected to the inside of the lower mold (6), one end of the second delivery pipe (25) is fixedly connected to the inside of the water tank (19), the side wall of the second delivery pipe (25) is fixedly connected to the second fixed block (27), and the side wall of the second fixed block (27) is fixedly connected to the upper surface of the workbench (1).

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