Injection mold for vehicle door handle
By using precise secondary transmission control of oblique parts and sliders in the door handle injection mold, split injection molding components and cooling pipeline design, the problems of complex structure and low molding accuracy of traditional molds are solved, and efficient and precise molding and stable production of door handles are achieved.
Patent Information
- Application Number
- CN202422161857.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-03
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-03
AI Technical Summary
Traditional door handle injection molds have complex structures, low molding accuracy and low production efficiency. The existing oblique parts and slider structure molds have problems such as difficulty in motion control and easy wear.
The upper moving mold and lower static mold are arranged up and down, combined with the precise secondary transmission control of the oblique parts and sliders, and the uniform flow of plastic materials is achieved through the diverted injection molding assembly, combined with the design of the cooling pipeline, ensuring uniform cooling in the cavity, and optimizing the slide movement with the spring and arc-shaped part to improve molding accuracy and stability.
It realizes accurate molding of complex shapes of door handles, improves product molding accuracy and quality, ensures consistent molding quality of each part, shortens the injection molding cycle, and enhances the stability and durability of the mold.
Smart Images
Figure CN223173471U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of injection molds, and particularly relates to an injection mold for a car door handle. Background Art
[0002] In the field of injection molds, as an important part of the appearance and functional components of a car, the design of the injection mold for a car door handle is crucial. Traditional injection molds for car door handles often have problems such as complex structures, low molding accuracy, and low production efficiency. Especially for components like car door handles with complex shapes and high detail requirements, how to improve production efficiency while ensuring product quality has become a major challenge in the design of injection molds. In recent years, with the continuous development of injection mold technology, designers have started to explore more efficient and precise mold structures. Among them, the mold design using diagonal parts and slider structures has been favored because it can achieve precise molding of complex shapes. Through the drive of the diagonal part and the sliding of the slider, the mold can flexibly adjust the shape and size of the cavity during the mold closing and opening processes, thus meeting the molding requirements of complex components such as car door handles. However, existing molds with diagonal parts and slider structures still have some deficiencies, such as complex structures, difficult motion control, and easy wear. Therefore, how to further optimize this mold structure and improve its stability and durability has become a research hotspot in the current field of injection mold design. Summary of the Invention
[0003] The purpose of the utility model is to provide an injection mold for a car door handle, aiming to solve the above problems.
[0004] To achieve the above purpose, the utility model provides an injection mold for a car door handle, which includes an upper moving mold and a lower stationary mold arranged up and down. An injection port is provided at the upper end of the upper moving mold. A molding component is arranged between the upper moving mold and the lower stationary mold to enclose a cavity for molding an injection molded part. The molding component includes a left molding part and a right molding part, which are symmetrically arranged. The lower end of the upper moving mold is connected to a left support rod, and the other end of the left support rod is connected to a first diagonal part. A first slider that can slide left and right is provided on the lower side of the first diagonal part. A first row cavity is arranged inside the first slider, and the first diagonal part extends into the first row cavity and is slidably connected thereto. The right side of the first slider is connected to a second diagonal part, and a right molding part that can move up and down is provided on the right side of the second diagonal part. A second row cavity is arranged inside the right molding part, and the second diagonal part extends into the second row cavity and is slidably connected thereto. A split injection molding component is arranged inside the upper moving mold, and after the plastic flows into the injection port, it is split by the split injection molding component to each part of the cavity.
[0005] Further, a right support rod is also connected to the lower end of the upper moving die. The other end of the right support rod is connected to a third inclined member. A second slider that can slide left and right is provided on the lower side of the third inclined member. A third row cavity is provided in the second slider. The third inclined member extends into the third row cavity and is slidably connected thereto. A fourth inclined member is connected to the left side of the second slider. A left forming member that can move up and down is provided on the left side of the fourth inclined member. A fourth row cavity is provided in the left forming member. The fourth inclined member extends into the fourth row cavity and is slidably connected thereto. The left forming member and the right forming member cooperate to form a cavity.
[0006] Further, there is a vacant slot between the first slider and the right forming member. A spring is provided in the vacant slot. One end of the spring is connected to the first slider, and the other end is connected to the right forming member. There is also a vacant slot between the second slider and the left forming member. A spring is provided in the vacant slot. One end of the spring is connected to the second slider, and the other end is connected to the left forming member.
[0007] Further, an arc portion is provided on the outer side wall of the first inclined member in the direction close to the first slider. The arc portion abuts against the first slider.
[0008] Further, a plurality of cooling pipes penetrating through its interior are provided in the lower stationary die, which are used to uniformly cool the cavity to promote the molding of the raw material.
[0009] Further, the upper moving die is provided with a downward protruding guide post, and a guide groove is provided at the corresponding position of the lower stationary die. The guide post extends into the guide groove.
[0010] Further, a second group of cavities is also provided between the upper moving die and the lower stationary die.
[0011] Further, the split injection molding assembly includes a main flow pipe, two split flow pipes, and four circulation pipes. The injection port is connected to one end of the main flow pipe, and the other end is connected to the two split flow pipes. The other end of a single split flow pipe is connected to the two circulation pipes. The circulation pipes extend into the molding assembly to pour in the plastic.
[0012] One or more of the above technical solutions in the door handle injection mold provided by the embodiments of the present utility model at least have the following technical effects:
[0013] In this design, the mold consists of an upper moving mold and a lower stationary mold. The upper moving mold is provided with an injection port for injecting plastic materials. The lower stationary mold cooperates with the upper moving mold to form a cavity for molding the door handle. When the mold is closed, the lower end of the upper moving mold is connected to a first inclined member through a left support rod. The first inclined member drives the first slider to slide to the right. The first slider is connected to a right forming member through a second inclined member, causing the right forming member to move upward. Since the right forming member and the left forming member are symmetrically arranged, the left forming member also moves upward in cooperation. The right forming member and the left forming member cooperate to form a cavity, and injection molding begins. When the mold is opened, the upper moving mold is connected to the first inclined member through the left support rod. The first inclined member drives the first slider to slide to the left. The first slider is connected to the right forming member through the second inclined member, causing the right forming member to move downward. Since the right forming member and the left forming member are symmetrically arranged, the left forming member also moves downward in cooperation. The upper moving mold and the lower stationary mold are separated, and the cavity is released. Through the precise secondary transmission control of the inclined members and the sliders, the precise molding of the complex shape of the door handle is achieved, improving the molding accuracy and quality of the product. A split injection molding assembly is provided inside the upper moving mold. After the plastic material enters the mold through the injection port, it is evenly split by the split injection molding assembly to each part of the cavity, ensuring the consistent molding quality of each part of the door handle. Description of the Drawings
[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0015] Figure 1 It is a side cross-sectional view of the injection mold for the door handle provided by the embodiment of the present invention.
[0016] Figure 2 It is a front cross-sectional view of the injection mold for the door handle provided by the embodiment of the present invention.
[0017] Figure 3 is Figure 2 an enlarged view of A in
[0018] Main reference numeral description: 100, upper moving mold; 110, lower stationary mold; 120, injection port; 130, forming assembly; 140, left forming member; 150, right forming member; 160, cavity;
[0019] 200, left support rod; 210, first inclined member; 220, first slider; 230, first slide cavity; 240, second inclined member; 250, second slide cavity;
[0020] 300, Right support rod; 310, Third diagonal member; 320, Second slider; 330, Third row cavity; 340, Fourth diagonal member; 350, Fourth row cavity;
[0021] 400, Empty slot; 410, Spring; 420, Arc portion; 430, Cooling pipe;
[0022] 500, Guide post; 510, Guide groove;
[0023] 600, Split injection molding assembly; 610, Main flow pipe; 620, Split flow pipe; 630, Circulation pipe. Detailed implementation mode
[0024] The following details the embodiments of the present invention. The examples of the embodiments are shown in the accompanying Figures 1 to 3 drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying Figures 1 to 3 drawings are exemplary and are intended to explain the embodiments of the present invention and should not be construed as a limitation of the present invention.
[0025] In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.
[0026] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present invention, "a plurality" means two or more unless otherwise specifically defined.
[0027] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.
[0028] In the embodiment of the present utility model, the present case provides an injection mold for a car door handle, which includes an upper moving mold 100 and a lower static mold 110 arranged up and down. An injection port 120 is provided at the upper end of the upper moving mold 100. A molding component 130 is arranged between the upper moving mold 100 and the lower static mold 110 to enclose a cavity 160 for molding an injection molded part. The molding component 130 includes a left molding part 140 and a right molding part 150, which are symmetrically arranged; a left support rod 200 is connected to the lower end of the upper moving mold 100, the other end of the left support rod 200 is connected to a first inclined part 210, a first slider 220 that can slide left and right is provided on the lower side of the first inclined part 210, a first runner cavity 230 is arranged in the first slider 220, and the first inclined part 210 extends into the first runner cavity 230 and is slidably connected thereto. A second inclined part 240 is connected to the right side of the first slider 220, a right molding part 150 that can move up and down is provided on the right side of the second inclined part 240, a second runner cavity 250 is arranged in the right molding part 150, and the second inclined part 240 extends into the second runner cavity 250 and is slidably connected thereto; a split injection molding component 600 is arranged in the upper moving mold 100. After the plastic flows into the injection port 120, it is split by the split injection molding component 600 to various parts of the cavity 160.
[0029] Specifically, the mold is composed of an upper moving mold 100 and a lower static mold 110. The upper moving mold 100 is provided with an injection port 120 for injecting plastic materials. The lower static mold 110 cooperates with the upper moving mold 100 to form a cavity 160 for molding the car door handle. When the mold is closed, the lower end of the upper moving mold 100 is connected to the first inclined part 210 through the left support rod 200. The first inclined part 210 drives the first slider 220 to slide to the right. The first slider 220 is connected to the right molding part 150 through the second inclined part 240, so that the right molding part 150 moves upward. Since the right molding part 150 and the left molding part 140 are symmetrically arranged, the left molding part 140 also moves upward cooperatively. The right molding part 150 and the left molding part 140 cooperate to form a cavity 160, and injection molding starts. When the mold is opened, the upper moving mold 100 is connected to the first inclined part 210 through the left support rod 200. The first inclined part 210 drives the first slider 220 to slide to the left. The first slider 220 is connected to the right molding part 150 through the second inclined part 240, so that the right molding part 150 moves downward. Since the right molding part 150 and the left molding part 140 are symmetrically arranged, the left molding part 140 also moves downward cooperatively. The upper moving mold 100 and the lower static mold 110 are separated, and the cavity 160 is released. Through the precise secondary transmission control of the inclined part and the slider, the precise molding of the complex shape of the car door handle is realized, and the molding accuracy and quality of the product are improved. A split injection molding component 600 is arranged in the upper moving mold 100. After the plastic material enters the mold through the injection port 120, it is evenly split by the split injection molding component 600 to various parts of the cavity 160 to ensure that the molding quality of each part of the car door handle is consistent.
[0030] In another embodiment of the utility model, a right support rod 300 is further connected to the lower end of the upper moving die 100. The other end of the right support rod 300 is connected to a third diagonal member 310. A second slider 320 that can slide left and right is provided on the lower side of the third diagonal member 310. A third row cavity 330 is provided in the second slider 320. The third diagonal member 310 extends into the third row cavity 330 and is slidably connected thereto. A fourth diagonal member 340 is connected to the left side of the second slider 320. A left forming member 140 that can move up and down is provided on the left side of the fourth diagonal member 340. A fourth row cavity 350 is provided in the left forming member 140. The fourth diagonal member 340 extends into the fourth row cavity 350 and is slidably connected thereto. The left forming member 140 and the right forming member 150 cooperate to form a cavity 160. Specifically, when the mold is closed, the lower end of the upper moving die 100 is connected to the third diagonal member 310 through the right support rod 300. The third diagonal member 310 drives the second slider 320 to slide to the right. The first slider 220 is connected to the left forming member 140 through the third diagonal member 310, so that the left forming member 140 moves upward. The right forming member 150 and the left forming member 140 cooperate to form the cavity 160, and injection molding starts. When the mold is opened, the upper moving die 100 is connected to the second diagonal member 240 through the right support rod 300. The second diagonal member 240 drives the second slider 320 to slide to the left. The second slider 320 is connected to the left forming member 140 through the third diagonal member 310, so that the left forming member 140 moves downward. Since the right forming member 150 and the left forming member 140 are symmetrically arranged, the left forming member 140 also cooperates to move downward, and the upper moving die 100 and the lower stationary die 110 are separated, and the cavity 160 is released. Through the precise secondary transmission control of the diagonal member and the slider, the precise forming of the complex shape of the door handle is realized, and the forming precision and quality of the product are improved.
[0031] In another embodiment of the utility model, a vacant slot 400 is provided between the first slider 220 and the right forming member 150. A spring 410 is provided in the vacant slot 400. One end of the spring 410 is connected to the first slider 220, and the other end is connected to the right forming member 150. A vacant slot 400 is also provided between the second slider 320 and the left forming member 140. A spring 410 is provided in the vacant slot 400. One end of the spring 410 is connected to the second slider 320, and the other end is connected to the left forming member 140. When the external power is withdrawn or the preset closing condition is reached, the spring 410 releases the stored elastic potential energy, and pushes the first slider 220 and the second slider 320 to quickly reset to the initial position until they are closely attached to the left and right forming members 150 again. Thereby, the processing precision and assembly quality of the mold or fixture are improved.
[0032] In another embodiment of the utility model, an arc portion 420 is provided on the outer side wall of the first diagonal member 210 in the direction close to the first slider 220, and the arc portion 420 abuts against the first slider 220. The design of the arc portion 420 makes the contact between the first diagonal member 210 and the first slider 220 smoother and more stable, reduces the sliding error caused by friction and impact, and improves the forming accuracy of the mold.
[0033] In another embodiment of the utility model, a plurality of cooling pipes 430 penetrating through its interior are provided in the lower stationary mold 110 for uniformly cooling the cavity 160 to promote the molding of the raw material.
[0034] In another embodiment of the utility model, the upper moving mold 100 is provided with a downward protruding guide post 500, and a guide groove 510 is provided at the corresponding position of the lower stationary mold 110. The guide post 500 extends into the guide groove 510 to improve the stability of mold opening and closing.
[0035] In another embodiment of the utility model, a second group of cavities 160 are further provided between the upper moving mold 100 and the lower stationary mold 110.
[0036] In another embodiment of the utility model, the split injection molding assembly 600 includes a main flow pipe 610, two split flow pipes 620 and four flow pipes 630. The injection port 120 is connected to one end of the main flow pipe 610, and the other end is connected to the two split flow pipes 620. The other end of each split flow pipe 620 is connected to the two flow pipes 630. The flow pipes 630 extend into the molding assembly 130 to pour in the plastic. Through the precisely designed split and flow pipe 630 paths, the uniform distribution and rapid filling of the plastic melt are achieved, and the injection molding cycle is shortened.
[0037] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. An injection mold for a car door handle, comprising an upper moving mold and a lower stationary mold arranged up and down. An injection port is provided at the upper end of the upper moving mold. A molding component is arranged between the upper moving mold and the lower stationary mold to enclose a cavity for molding an injection molded part, characterized in that, The forming assembly includes a left forming member and a right forming member, which are symmetrically arranged; a left support rod is connected to the lower end of the upper moving mold, the other end of the left support rod is connected to a first inclined member, a first slider that can slide left and right is provided below the first inclined member, a first row position cavity is provided in the first slider, and the first inclined member extends into the first row position cavity and is slidably connected thereto; a second inclined member is connected to the right side of the first slider, the right forming member that can move up and down is provided on the right side of the second inclined member, a second row position cavity is provided in the right forming member, and the second inclined member extends into the second row position cavity and is slidably connected thereto; a shunt injection molding assembly is provided in the upper moving mold, and after the plastic flows into the injection port, it is shunted to various parts of the cavity through the shunt injection molding assembly.
2. The injection mold for a car door handle according to claim 1, wherein A right support rod is also connected to the lower end of the upper moving mold, the other end of the right support rod is connected to a third inclined member, a second slider that can slide left and right is provided below the third inclined member, a third row position cavity is provided in the second slider, and the third inclined member extends into the third row position cavity and is slidably connected thereto; a fourth inclined member is connected to the left side of the second slider, the left forming member that can move up and down is provided on the left side of the fourth inclined member, a fourth row position cavity is provided in the left forming member, and the fourth inclined member extends into the fourth row position cavity and is slidably connected thereto; the left forming member and the right forming member cooperate to form the cavity.
3. The injection mold for a car door handle according to claim 2, wherein, There is a vacant slot between the first slider and the right forming member, a spring is provided in the vacant slot, one end of the spring is connected to the first slider, and the other end is connected to the right forming member; there is also the vacant slot between the second slider and the left forming member, the spring is provided in the vacant slot, one end of the spring is connected to the second slider, and the other end is connected to the left forming member.
4. The injection mold for a car door handle according to claim 2, wherein, An arc portion is provided on the outer side wall of the first inclined member in the direction close to the first slider, and the arc portion abuts against the first slider.
5. The injection mold for a car door handle according to claim 1, wherein A plurality of cooling pipes penetrating through its interior are provided in the lower stationary mold for uniformly cooling the cavity to promote the molding of the raw material.
6. The injection mold for a car door handle according to claim 1, characterized in that, The upper moving mold is provided with a downward protruding guide post, and a guide groove is provided at the corresponding position of the lower stationary mold, and the guide post extends into the guide groove.
7. The injection mold for a car door handle according to claim 2, wherein, A second set of the cavities is also provided between the upper moving mold and the lower stationary mold.
8. The injection mold for a car door handle according to claim 7, characterized in that, The shunt injection molding assembly includes a main flow pipe, two shunt pipes and four flow pipes. One end of the injection port is connected to the main flow pipe, the other ends are respectively connected to the two shunt pipes, the other end of each shunt pipe is respectively connected to the two flow pipes, and the flow pipes extend into the forming assembly to pour in the plastic.