Injection mold with vibrating needle structure
By setting up a needle and a spring drive mechanism in the slider of the injection mold, the problem of difficulty in forming the side and hole positions of complex products in traditional molds is solved, and an efficient and simplified production process is achieved, and product quality and production efficiency are improved.
Patent Information
- Application Number
- CN202421327111.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-12
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-06-12
AI Technical Summary
When forming complex products, it is difficult to complete the forming of the side structure and the upper face position at the same time. Additional drilling processes are required, which increase production steps and costs, and affect the appearance and structural integrity of the product.
Design an injection mold with a needle structure. By setting a needle in the slider, the needle is driven by a spring to form the hole position during the injection molding process, and the spring is restored to separate the needle from the product during the molding, so as to realize the side edge. At the same time as the hole position.
The hole position of the side structure and its upper end surface is realized in one-time molding during the injection molding process, simplifying the production process, reducing production costs, and improving production efficiency and product quality.
Smart Images
Figure 00000000_0000_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of injection molds, in particular to an injection mold with a spring pin structure. Background Art
[0002] In the manufacturing process of plastic products, mold design and processing technology are crucial to product quality and production efficiency. Especially for products with complex structures, such as products with side structures and holes on the upper end surface of the side structures, the molding process is more complicated.
[0003] In traditional mold design, the side structure is usually realized by a slider mechanism. The slider mechanism can provide lateral movement during the injection molding process to form the side structure of the product. However, when this design encounters holes on the upper end surface of the side structure, it is often impossible to complete the molding of the holes at the same time during the injection molding process. Therefore, the conventional method is to process these holes through an additional drilling process after the injection molding is completed. This process not only increases the production steps and prolongs the manufacturing cycle, but the drilling process may also affect the appearance and structural integrity of the product, resulting in an increase in scrap rate.
[0004] In addition, the additional drilling process also increases the difficulty of operation and the production cost. Each product needs to be drilled separately, which not only increases the investment in manpower and equipment, but also puts higher requirements on the workers' operating skills. With the continuous improvement of production efficiency and cost control requirements in modern manufacturing, the traditional injection molding plus drilling method can no longer meet the needs of efficient production.
[0005] In order to solve the above problems and improve the production efficiency and quality of finished products, it is necessary to improve the existing mold design and molding process so that the side structure and the hole position of the upper end surface can be completed in one molding during the injection molding process. This improvement can not only simplify the production process and reduce production costs, but also significantly improve production efficiency and product market competitiveness. Utility Model Content
[0006] The utility model discloses an injection mold with a spring pin structure, which is used to solve relevant technical problems in the background technology.
[0007] The technical solution provided by the utility model is as follows: an injection mold with an elastic needle structure, comprising: a male mold core, a female mold core, a slider, and an elastic needle, the slider is between the male mold core and the female mold core, and the injection molded product is between the male mold core, the female mold core and the slider;
[0008] The spring pin slides in the slider, and one end of the spring pin close to the male mold core protrudes outside the slider and is used for hole forming of the injection molded product, while the other end of the spring pin contacts the female mold core;
[0009] There is a spring inside the slider. When the mold is opened, the spring drives the spring pin to move toward the mother mold core.
[0010] In one embodiment, a first slideway runs through the slider, and a second slideway connected to the first slideway is opened in the slider; a limiting portion is provided on the external protrusion of the spring pin, the spring pin is slidably connected in the first slideway, and the limiting portion is slidably connected in the second slideway; the spring is in the second slideway, and is respectively connected to the slider and the limiting portion.
[0011] In one embodiment, a fixing hole is opened in the second slideway, and one end of the spring is connected to the fixing hole.
[0012] In one embodiment, a limit block is provided in the second slideway in the direction of the female mold core.
[0013] In one embodiment, an ejector pin is slidably connected inside the male mold core, and one end of the ejector pin protrudes outside the male mold core for ejecting the injection molded product.
[0014] In one embodiment, the slider is used for molding the side of the injection molded product, and a driving mechanism is arranged in a direction away from the injection molded product.
[0015] Compared with the prior art, the beneficial effects of the utility model are:
[0016] (1) The utility model has an injection mold with an elastic pin structure. When the female mold core and the male mold core are molded together, the female mold core contacts the elastic pin, and the elastic pin squeezes the spring to move toward the male mold core. One end of the elastic pin protrudes outside the slider and is used for hole molding of the injection molded product. When the female mold core and the male mold core are separated and demolded, the spring returns to the female mold core and pushes the elastic pin out. The elastic pin is separated from the injection molded product, and the slider can also be separated, thereby realizing the demolding of the injection molded product. By setting the elastic pin mechanism, while ensuring the molding of the hole of the injection molded product, the demolding of the product after molding is facilitated, thereby improving production efficiency.
[0017] (2) The injection mold with a spring needle structure of the utility model can effectively prevent the spring needle from detaching from the slider when withdrawing by providing a limit part and a limit block, thereby ensuring stable injection molding, avoiding problems such as deviation of the spring needle, and further improving production efficiency.
[0018] (3) The utility model has an injection mold with a spring pin structure, which is used for side molding of the injection molded product by arranging a slider, and at the same time, a spring pin is arranged in the slider to meet the molding of the hole position; the slider and the spring pin are linked, the structure is simple, and the processing requirements are met while improving the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a structural schematic diagram of the middle part of the injection mold of the utility model;
[0020] Figure 2It is a cross-sectional view of the injection mold of the utility model;
[0021] Figure 3 This utility model Figure 2 A partial enlarged view of the
[0022] Figure 4 It is a partial enlarged view of the slider and the injection molding product in the utility model;
[0023] Figure 5 It is a partial enlarged view of the male mold core, female mold core, slider, and spring pin in the utility model;
[0024] Figure 6 It is a partial enlarged view of the female mold core, the slider, and the spring needle in the utility model;
[0025] Figure 7 It is a schematic diagram of the external structure of the injection mold of the utility model.
[0026] The accompanying drawings are marked as follows: 1. male mold core; 2. female mold core; 3. slider; 4. spring pin; 5. injection molded product; 6. spring; 7. first slideway; 8. second slideway; 9. limiting part; 10. fixing hole; 11. limiting block; 12. ejector pin; 13. driving mechanism. DETAILED DESCRIPTION
[0027] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several changes and improvements can also be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.
[0028] like Figure 1-7 As shown, the utility model is an injection mold with a spring pin structure, comprising: a male mold core 1, a female mold core 2, a slider 3, and a spring pin 4, the slider 3 is between the male mold core 1 and the female mold core 2, and the injection molded product 5 is between the male mold core 1, the female mold core 2 and the slider 3; the injection molded product 5 of this embodiment has a side structure, and a hole structure is provided on the surface of the side structure, therefore, the slider 3 is provided for side molding of the injection molded product 5, and at the same time, the spring pin 4 is provided in the slider 3 to meet the molding of the hole position, the slider 3 and the spring pin 4 are linked, the structure is simple, and the processing requirements are met while improving the production efficiency.
[0029] When the mold is opened, the spring 6 drives the spring 6 to move toward the female mold core 2; when the slide block 3 moves to the specified position, the female mold core 2 and the male mold core 1 are molded together, the female mold core 2 and the spring 6 are in conflict with the spring 4, and the spring 4 squeezes the spring 6 to move toward the male mold core 1, and one end of the spring 4 protrudes outside the slide block 3 for hole molding of the injection molded product 5; when the female mold core 2 and the male mold core 1 are separated and demolded, the spring 6 returns to the female mold core 2 and ejects the spring 4, the spring 4 is separated from the injection molded product 5, and the slide block 3 can also be separated, thereby realizing the demoulding work of the injection molded product 5; by setting the spring needle 4 mechanism, while ensuring the molding of the hole of the injection molded product 5, it is convenient to demould the product after molding, thereby improving the production efficiency.
[0030] Specifically, a first slideway 7 runs through the slider 3, and a second slideway 8 connected to the first slideway 7 is provided in the slider 3; a limiting portion 9 is provided on the external protrusion of the spring pin 4, the spring pin 4 is slidably connected to the first slideway 7, and the limiting portion 9 is slidably connected to the second slideway 8; the spring 6 is in the second slideway 8, and is respectively connected to the slider 3 and the limiting portion 9; when the female mold core 2 and the male mold core 1 are molded, the female mold core 2 conflicts with the spring pin 4, and the spring pin 4 squeezes the spring 6 through the limiting portion 9 and moves toward the male mold core 1 in the first slideway 7; when the female mold core 2 and the male mold core 1 are separated and demolded, the spring 6 recovers, and the spring pin 4 is ejected toward the female mold core 2 through the limiting portion 9, and the spring pin 4 is separated from the injection molded product 5; the first slideway 7 and the second slideway 8 can be used to guide the spring pin 4 to ensure the stability of the movement of the spring pin 4.
[0031] Furthermore, a limiting block 11 is arranged in the second slide 8 in the direction of the mother mold core 2. The limiting portion 9 moves toward the mother mold core 2 under the push of the spring 6 and is blocked by the limiting block 11. By setting the limiting portion 9 and the limiting block 11, the spring needle 4 can be effectively prevented from detaching from the slider 3 when exiting, thereby ensuring stable injection molding work, avoiding problems such as deviation of the spring needle 4, and further improving production efficiency.
[0032] Furthermore, a fixing hole 10 is opened in the second slide 8, and one end of the spring 6 is connected to the fixing hole 10. By setting the fixing hole 10, the stability of the movement of the spring 6 can be ensured, and the problems of poor movement caused by the deviation and distortion of the spring 6 can be prevented, thereby improving the stability of the equipment.
[0033] In the present embodiment, an ejector pin 12 is slidably connected inside the male mold core 1, and one end of the ejector pin 12 protrudes outside the male mold core 1 and is used to eject the injection molded product 5; the other end of the ejector pin 12 is connected to the ejector plate. The ejector pin 12 and the ejector plate are conventional settings of the mold structure, and are used to eject the product upward from the male mold core 1 after the mold is opened, so as to facilitate the peeling of the product.
[0034] In this embodiment, the slider 3 moves on the male mold core 1, and on the side, it is used for molding the side of the injection molded product 5, and a driving mechanism 13 is arranged in the direction away from the injection molded product 5; the driving mechanism 13 of this embodiment is a telescopic cylinder, which drives the movement of the slider 3. When the mold is closed, the telescopic cylinder drives the slider 3 to move inward, and the inner wall of the slider 3 cooperates with the male mold core 1 and the female mold core 2 to mold the side structure of the injection molded product 5; when demolding, the female mold core 2 first detaches upward, and then the slider 3 moves sideways to separate from the injection molded product 5, so that the product can be detached.
[0035] Working principle: when the mold is closed, under the action of the spring 6, the top of the spring pin 4 protrudes outside the slider 3, and the telescopic cylinder drives the slider 3 to move inward to the specified position on the male mold core 1; the female mold core 2 is closed downward, and the end face of the female mold core 2 contacts the top of the spring pin 4, and the spring pin 4 squeezes the spring 6 through the limiting part 9 and moves toward the male mold core 1 in the first slide 7 until the top of the spring pin 4 is completely retracted into the slider 3, and the bottom of the spring pin 4 protrudes outside the slider 3. At this time, injection molding is performed, and the injection molded product 5 is formed under the cooperation of the male mold core 1, the female mold core 2, the slider 3 and the spring pin 4; when the female mold core 2 and the male mold core 1 are separated and demolded, the female mold core 2 moves upward to demold, the spring 6 is restored, and the spring pin 4 is ejected toward the female mold core 2 through the limiting part 9, and the spring pin 4 is separated from the injection molded product 5, and then the slider 3 moves sideways to separate from the injection molded product 5, and the ejector pin 12 plate lifts the injection molded product 5 upward through the ejector pin 12 to realize product demolding. The utility model provides an injection mold with an elastic pin 4 structure. When the female mold core 2 and the male mold core 1 are molded together, the female mold core 2 contacts the elastic pin 4, and the elastic pin 4 squeezes the spring 6 to move toward the male mold core 1. One end of the elastic pin 4 protrudes outside the slider 3 and is used for hole molding of the injection molded product 5. When the female mold core 2 and the male mold core 1 are separated and demolded, the spring 6 returns to the female mold core 2 to eject the elastic pin 4, and the elastic pin 4 is separated from the injection molded product 5. The slider 3 can also be separated, thereby realizing the demolding of the injection molded product 5. By arranging the elastic pin 4 mechanism, while ensuring the hole molding of the injection molded product 5, it is convenient to demold the product after molding, thereby improving the production efficiency.
[0036] In this application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the utility model and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.
[0037] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. An injection mold with a spring pin structure, characterized in that: include: A male mold core (1), a female mold core (2), a slider (3), and an elastic pin (4), wherein the slider (3) is between the male mold core (1) and the female mold core (2), and the injection molded product (5) is between the male mold core (1), the female mold core (2), and the slider (3); The spring pin (4) slides in the slider (3), one end of the spring pin (4) close to the male mold core (1) protrudes outside the slider (3) and is used for hole forming of the injection molded product (5), and the other end of the spring pin (4) contacts the female mold core (2); A spring (6) is arranged inside the slide block (3). When the mold is opened, the spring (6) drives the spring pin (4) to move toward the mother mold core (2).
2. The injection mold with a spring-pin structure according to claim 1, characterized in that: A first slideway (7) passes through the slider (3), and a second slideway (8) connected to the first slideway (7) is provided in the slider (3); a limiting portion (9) is provided on the external protrusion of the spring pin (4), the spring pin (4) is slidably connected to the first slideway (7), and the limiting portion (9) is slidably connected to the second slideway (8); the spring (6) is in the second slideway (8), and is respectively connected to the slider (3) and the limiting portion (9).
3. The injection mold with a spring pin structure according to claim 2, characterized in that: A fixing hole (10) is provided in the second slideway (8), and one end of the spring (6) is connected to the fixing hole (10).
4. The injection mold with a spring-pin structure according to claim 2, characterized in that: A limiting block (11) is arranged in the second slideway (8) in the direction of the female mold core (2).
5. The injection mold with a spring-pin structure according to claim 1, characterized in that: An ejector pin (12) is slidably connected inside the male mold core (1), and one end of the ejector pin (12) protrudes outside the male mold core (1) and is used to eject the injection molded product (5).
6. The injection mold with a spring-pin structure according to claim 1, characterized in that: The slider (3) is used for molding the side of the injection molded product (5), and a driving mechanism (13) is arranged in a direction away from the injection molded product (5).