Injection mold for producing central control decorative plate of automobile door and window

Abstract

The utility model relates to the technical field of injection molds, in particular to an injection mold for producing a central control decorative plate of an automobile door and window, which comprises a fixed mold module, a movable mold module and an inclined core-pulling mechanism, the inclined core-pulling mechanism is arranged in a mold core and comprises a sliding block seat, a core-pulling sliding block and a core-pulling pull rod, the sliding block seat is connected to the fixed mold module in a sliding mode in the horizontal direction, a guide assembly used for preventing jamming or breakage in the movement process is arranged at the joint of the sliding block seat and the fixed mold module, a T-shaped groove is formed in the sliding block seat, one end of the core-pulling sliding block is fixedly connected with a sliding block insert, and the sliding block insert is connected with the sliding block seat through the T-shaped groove; and one end of the core-pulling pull rod extends into the sliding block seat, and the other end of the core-pulling pull rod is connected with the fixed mold module. The sliding block core-pulling mechanism solves the problems existing when a traditional sliding block core-pulling mechanism pulls a core at a large inclination angle, achieves efficient and high-quality production of complex structural parts, and meanwhile has the advantages of being intelligent and high in precision.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold technical field, especially a kind of injection mold for the production of automobile door and window central control decorative plate. BACKGROUND

[0002] Automobile door and window central control decorative plate refers to the plate installed on the door, used for the decoration of automobile door and window central control area, the design of automobile door and window central control decorative plate is very important, and high and beautiful decorative plate can improve the grade of automobile;Among them, the automobile door and window central control of main driver is the place of controlling automobile door, window and trunk function device, in the production process, button, hole copper and the like need to be set on automobile door and window central control decorative plate, so it is necessary to punch and punch on decorative plate in advance, and special automobile door and window central control decorative plate injection mold is needed.

[0003] In the injection molding production of complex structural parts such as automobile door and window central control decorative plate, the buckle structure with large inclination angle is often encountered. The traditional slider core-pulling mechanism not only has great difficulty in processing, but also is prone to jamming or fracture during core-pulling, which seriously affects the production efficiency and product quality. In addition, with the continuous improvement of product quality requirements in automobile manufacturing industry, intelligent and high-precision injection mold has become an inevitable trend of industry development. UTILITY MODEL CONTENT

[0004] In order to solve the technical defects proposed in the above background art, the purpose of the utility model is to provide an injection mold for the production of automobile door and window central control decorative plate, to solve the problems of traditional slider core-pulling mechanism in large inclination angle core-pulling, to realize efficient and high-quality production of complex structural parts, and to have the characteristics of intelligence and high precision.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] An injection mold for the production of automobile door and window central control decorative plate, comprising a fixed mold module, a movable mold module and a diagonal core-pulling mechanism, the diagonal core-pulling mechanism is arranged in the mold core, and the diagonal core-pulling mechanism comprises a slider seat, a core-pulling slider and a core-pulling pull rod, the slider seat is slidably connected to the fixed mold module in horizontal direction, and a guide assembly for preventing jamming or fracture during movement is arranged at the connection between the slider seat and the fixed mold module, a T-shaped groove is formed in the slider seat, one end of the core-pulling slider is fixedly connected with a slider insert, and the slider insert is connected with the slider seat through the T-shaped groove;One end of the core-pulling pull rod extends into the slider seat, and the other end is connected with the fixed mold module.

[0007] Preferably, the T-shaped groove is inclined downward along the direction of the slider insert, and the inclination angle of the T-shaped groove is 30°-80°.

[0008] Preferably, the guide assembly comprises a guide rail arranged along the length direction of the mold core and a guide plate slidingly connected to the guide rail and fixed to the slider seat at the other end.

[0009] Preferably, the slider insert has a U-shaped vertical cross section, and a pressing plate for bearing Z-direction load is arranged above the slider insert, and an elastic element for reducing impact during movement is connected between the pressing plate and the slider insert, and the elastic element is a spring or a rubber pad.

[0010] Preferably, the fixed mold module comprises a fixed mold base, a fixed mold gasket and a fixed mold plate, which are sequentially stacked from top to bottom, a gate opening penetratingly communicating with a forming cavity is arranged at the center position of the fixed mold base, and a row position rod is arranged on one side of the fixed mold gasket and the fixed mold plate.

[0011] Preferably, the movable mold module comprises a movable mold base, movable mold feet and a movable mold plate, a positioning hole is arranged at the bottom end of the movable mold base, a clamping machine is arranged on one side of the movable mold base, the clamping machine is arranged in close contact with the movable mold module, and one side of the clamping machine is clamped and connected to the rear mold plate; the movable mold feet are symmetrically and fixedly connected to the movable mold base, and an ejection assembly is arranged between the movable mold feet; a sliding groove is arranged at the position corresponding to the guide rail on the movable mold plate.

[0012] Preferably, a plurality of water cooling pipes for cooling the mold core are arranged in the mold core, the plurality of water cooling pipes are arranged in a crosswise and horizontal manner, and water inlets and outlets are arranged at the two ends of the water cooling pipes, respectively.

[0013] Preferably, the ejector pin demolding assembly comprises an ejector pin plate, ejector pins and inclined ejector rods, the ejector pin plate is arranged on the movable mold base and between the two movable mold feet, a plurality of ejector pins and inclined ejector rods are arranged, one end of the plurality of ejector pins and inclined ejector rods is fixed to the ejector pin plate, and the other end penetrates through the movable mold plate and abuts against the mold core.

[0014] In summary, the beneficial effects of the utility model are as follows:

[0015] The inclined core-pulling mechanism is suitable for injection molding of complex structural parts such as automobile door and window central control decorative plates, and has the advantages of simple processing, stable movement and high product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural diagram of an injection mold for producing a central control decorative panel for automobile doors and windows according to the utility model;

[0017] Figure 2 This is a transverse cross-sectional view of an injection mold for producing a central control decorative panel for automobile doors and windows according to the present invention;

[0018] Figure 3 This is a longitudinal cross-sectional view of an injection mold for producing a central control decorative panel for automobile doors and windows according to the present invention;

[0019] Figure 4 yes Figure 3 The enlarged view of the oblique core pulling mechanism at point a in the middle;

[0020] Figure 5 It is a longitudinal sectional view of the mold core of the utility model.

[0021] Description of reference numerals in the figures:

[0022] 1. Fixed mold module; 11. Fixed mold base; 111. Runner gate; 12. Fixed mold gasket; 13. Fixed mold plate; 14. Sliding rod; 2. Moving mold module; 21. Moving mold base; 211. Positioning hole; 22. Moving mold foot; 23. Moving mold plate; 231. Slide groove; 3. Oblique core pulling mechanism; 31. Slider seat; 311. T-slot; 32. Core pulling slider; 33. Core pulling rod; 34. Slider insert; 35. Pressure plate; 36. Elastic element; 4. Mold core; 41. Molding cavity; 5. Guide assembly; 51. Guide rail; 52. Guide plate; 6. Locking machine; 7. Ejector assembly; 71. Ejector plate; 72. Ejector; 73. Oblique ejector rod; 8. Water cooling pipe; 81. Water inlet; 82. Water outlet. DETAILED DESCRIPTION

[0023] 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 are within the scope of protection of the present invention.

[0024] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms cannot be understood as limiting the present invention.

[0025] In the description of this utility model, if the word "several" or "several" is used, it means one or more, and "more" means two or more. "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of the words "first," "second," and "third" is only for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, or implicitly indicating the number of the indicated technical features, or implicitly indicating the order of the indicated technical features.

[0026] The following is combined with Figures 1-5 , an embodiment of the utility model of an injection mold for producing a central control decorative panel for automobile doors and windows is further described in detail.

[0027] An injection mold for producing automobile door and window center control decorative panels, such as Figures 1 to 3 As shown, it includes a fixed mold module 1, a movable mold module 2 and an oblique core-pulling mechanism 3. A mold core 4 with a molding cavity 41 is provided at the joint of the fixed mold module 1 and the movable mold module 2; the oblique core-pulling mechanism 3 is arranged in the mold core 4, and the oblique core-pulling mechanism 3 includes a slider seat 31, a core-pulling slider 32 and a core-pulling pull rod 33. The slider seat 31 is connected to the fixed mold module 1 in a sliding direction in the horizontal direction, and a guide component 5 is provided at the connection between the slider seat 31 and the fixed mold module 2 to prevent jamming or breakage during movement; a T-slot 311 is provided on the slider seat 31, one end of the core-pulling slider 32 is fixedly connected to a slider insert 34, and the slider insert 34 is connected to the slider seat 31 through a T-slot 311; one end of the core-pulling pull rod 33 extends into the slider seat 31, and the other end is connected to the fixed mold module 1.

[0028] Specifically, the general automobile door and window control decorative plate product has a plurality of directions of buckles that need to be cored by the core-pulling slider 32, but the inclination angle of the buckle is relatively large, generally 18°, 30° and 40° respectively, and the workpiece after injection molding is prone to curling. If the traditional slider structure is used, not only is the processing difficult, but there is also the risk of jamming or breaking during movement. Therefore, the utility model innovates this structure, and uses a diagonal core-pulling structure to diagonally core-pull the buckle with a large inclination angle. The slider seat 31 is arranged on both sides of the mold core 4, and a plurality of T-shaped grooves 311 are oppositely and equidistantly arranged on the slider seat 31 along the length thereof. The T-shaped grooves 311 are arranged obliquely, the core-pulling slider 32 is slidably connected in the T-shaped grooves 311 through the slider insert 34, and a guide assembly 5 is arranged at the connection between the slider seat 31 and the slider insert 34. The guide assembly 5 can further prevent the slider seat 31 and the slider insert 34 from being jammed or broken during movement. The core-pulling slider 32 is driven by the core-pulling rod 33 to move obliquely, thereby completing the oblique core-pulling and facilitating the rapid demolding of the injection molded part.

[0029] It is worth mentioning that, in the process of injection molding, in order to prevent the filling force of the plastic from being greater than the weight of the core-pulling slider 32, the core-pulling slider 32 needs to be pressed to prevent it from moving backward. A shovel is arranged on the back side of the core-pulling slider 32, which abuts and presses against one side of the core-pulling slider 32, so that the core-pulling slider 32 is stably pressed. Thus, when the injection molded part is demolded, the core-pulling slider 32 slides out along the slider seat 31, and the parts that need to be separated on the injection molded part are cut and separated under the action of the shovel, thereby saving the subsequent manual cutting step and improving the production efficiency.

[0030] In the embodiment, as shown in Figure 4 The T-shaped grooves 311 are arranged obliquely downward along the direction of the slider insert 34, and the inclination angle of the T-shaped grooves 311 is 30-80°.

[0031] Specifically, the slider insert 34 is slidably connected to the T-shaped grooves 311, so that it can drive the core-pulling slider 32 to move obliquely. In order to adapt to buckles with different angles, the inclination angle of the T-shaped grooves 311 can be adjusted according to the actual situation, and the adjustment range is 30°-80°, which can meet the needs of most buckle structures in this interval. At the same time, the design of the slider insert 34 also considers the characteristics of the buckle structure on the product, to ensure that it matches the buckle structure on the product accurately. The design of the T-shaped grooves 311 considers the inclination angle of the slider insert 34, and through precise guidance and positioning function, the stable movement of the slider insert 34 can be ensured even at a large inclination angle.

[0032] In the embodiment, as shown in Figure 5As shown, the guide assembly 5 includes a guide rail 51 arranged along the length direction of the mold core 4 and a guide plate 52 (not shown in the figure) slidably connected to the guide rail 51, and the other end of the guide plate 52 (not shown in the figure) is fixed to the slider seat 31.

[0033] Specifically, the guide assembly 5 can realize linear motion in the horizontal direction through a guide rail or a guide column, and the motion is driven by the mold opening and closing action of the injection molding machine; it is used to improve the motion accuracy and stability of the slider seat 31; at the same time, the design of the guide assembly 5 ensures that the motion trajectory of the slider seat 31 and the slider insert 34 meets the design requirements, preventing the problems of jamming or breaking during motion.

[0034] In this embodiment, the vertical cross section of the slider insert 34 is a U-shaped structure, and a pressing plate 35 for bearing Z-direction load is arranged above the slider insert 34, and an elastic element 36 for reducing impact during motion is connected between the pressing plate 35 and the slider insert 34, and the elastic element 36 adopts a spring or a rubber pad.

[0035] Specifically, the pressing plate 35 is arranged above the slider insert 34 to bear the Z-direction load, ensuring that the slider insert 34 only moves along the inclined direction of the T-shaped groove 311, thereby preventing burrs during product demolding, and the elastic element 36 arranged between the pressing plate 35 and the slider insert 34 is used to buffer the Z-direction load and reduce the impact during motion, making the motion process more smooth and smooth.

[0036] In this embodiment, the fixed mold module 1 includes a fixed mold seat 11, a fixed mold gasket 12 and a fixed mold plate 13, which are arranged in sequence from top to bottom, a gate opening 111 through the forming cavity 41 is formed at the center position of the fixed mold seat 11, and a row position rod 14 is arranged on one side of the fixed mold gasket 12 and the fixed mold plate 13.

[0037] Specifically, a concave profile of the surface of the molded part is formed on the fixed mold plate 13, so that when it is spliced with the movable mold plate 23, the forming cavity 41 is formed, thereby facilitating the injection of plastic liquid, wherein the gate opening 111 is a section of the channel in the mold connecting the injection molding machine nozzle to the runner or the cavity; the top is concave to connect with the nozzle, the diameter of the gate opening 111 is slightly larger than the diameter of the nozzle to avoid overflow, and prevent the two from being blocked due to inaccurate connection; at the same time, the diameter of the gate opening 111 expands inwardly at an angle of 3°-5°, and the purpose of this design is to facilitate the demolding of the flow channel excrescence; a plurality of gate pipes are connected at the bottom end of the gate opening 111, one end of the gate pipe communicates with the forming cavity 41, so as to quickly transport the plastic liquid into the forming cavity 41 to complete the injection. In addition, the purpose of arranging the row position rod 14 is to quickly take out the insert on the fixed mold module 1 during demolding, thereby improving the demolding efficiency.

[0038] In the embodiment, the movable die module 2 comprises a movable die base 21, movable die feet 22 and a movable die plate 23. The movable die base 21 is provided with a positioning hole 211 at the bottom end, and a clamping machine 6 is arranged on one side of the movable die base 21. The clamping machine 6 is arranged in close contact with the movable die module 2, and one side of the clamping machine 6 is clamped and connected to the rear die plate. The movable die feet 22 are symmetrically fixedly connected to the movable die base 21, and an ejection assembly 7 is arranged between the movable die feet 22. The movable die plate 23 is provided with a sliding groove 231 at a position corresponding to the guide sliding rail 51.

[0039] Specifically, the positioning hole 211 on the movable die base 21 is used to connect with the working platform, so that it can be stably and fixedly installed on the working platform of the injection molding machine. The movable die feet 22 are used to adjust the height of the closed mold to form a block-shaped part of the ejection space required by the injection mold. The clamping machine 6 arranged on one side of the movable die base 21 can ensure that the assembly of the fixed die module 1 and the movable die module 2 is tight during mold closing, so as to avoid the gap affecting the injection effect.

[0040] In the embodiment, a plurality of water cooling pipes 8 for cooling the mold core 4 are arranged in the mold core 4. The plurality of water cooling pipes 8 are arranged in a crosswise and horizontal manner, and the two ends of the water cooling pipes 8 are respectively provided with water inlets 81 and water outlets 82. The water inlets 81 and the water outlets 82 are respectively arranged on one side of the fixed die plate 13 and the movable die plate 23.

[0041] Specifically, by arranging a plurality of water cooling pipes 8 in the mold core 4, the water cooling pipes 8 can be filled or discharged with cooling water through the water inlets 81 or the water outlets 82. The cooling water in the water cooling pipes 8 can cool the mold core 4, the fixed die plate 13 and the movable die plate 23 subjected to high temperature, effectively avoiding the problem that the injection molded part is bonded to the mold core 4 due to the high temperature of the mold core 4, and also avoiding the aging of the materials of the fixed die plate 13 and the movable die plate 23 due to high temperature, greatly prolonging the service life of the entire injection mold and ensuring the quality of the injection molded product.

[0042] In the embodiment, the ejection assembly 7 comprises a ejector pin 72 plate 71, a plurality of ejector pins 72 and a plurality of inclined ejector rods 73. The ejector pin 72 plate 71 is arranged on the movable die base and located between the two movable die feet 22. The plurality of ejector pins 72 and the plurality of inclined ejector rods 73 are arranged. One end of the plurality of ejector pins 72 and the plurality of inclined ejector rods 73 is fixed on the ejector pin 72 plate 71, and the other end penetrates through the movable die plate 23 and abuts against the mold core 4.

[0043] Specifically, in the demolding process, the ejection assembly 7 can be ejected according to the annular undercut surface and the buckle structure with a large inclination angle on the automobile door and window central control decorative plate, wherein the ejector pin 72 is used for vertical upward ejection, and the inclined ejector rod 73 is used for pushing the injection molding part in the inclined direction at the position of the buckle or annular undercut surface, so as to effectively protect the annular undercut surface and the buckle structure at the bottom of the injection molding workpiece, avoid the problem that the protrusions at the edges of the previous mold scrape the undercut surface on the injection molding workpiece, and prevent damage to the mold.

[0044] The working principle of the utility model is as follows:

[0045] In the injection molding process of the automobile door and window central control decorative plate, the injection molding machine pours the plastic liquid into the mold core 4 of the gate 111, so that the injection molding part is formed in the forming cavity 41, and after forming, demolding is performed, at this time, for the buckle and undercut position on the automobile door and window central control decorative plate, the inclined pull rod of the inclined core pulling mechanism 3 acts on the core pulling slider 32, the inclined pull rod moves the core pulling slider 32 outward, the core pulling slider 32 and the slider insert 34 move obliquely along the T-shaped groove 311 opened on the slider seat 31, and the slider seat 31 moves horizontally under the action of the guide assembly 5, the core pulling slider 32 and the slider seat 31 slide to the appropriate distance and are limited to prevent the core pulling slider 32 from falling off; after the core pulling is completed, the injection molding part is pushed out upward by the ejection assembly 7, so that the injection molding part can be taken out.

[0046] The utility model discloses a design idea that the inclined core pulling mechanism 3 adopts the horizontal movement of the slider seat 31 and the oblique movement of the slider insert 34, and the two are connected through the T-shaped groove 311, cooperate with the pressing plate 35 and the guide device, ensure the accurate oblique movement of the slider insert 34, and prevent the generation of burrs on the product, so as to effectively solve the machining difficulty and movement risk problem of the traditional slider core pulling mechanism in the core pulling of large inclination angle, realize the efficient and high-quality production of complex structure parts.

[0047] The embodiments of the specific embodiment are the preferred embodiments of the application, not limited to the protection scope of the application, wherein the same parts are indicated by the same reference numerals. Therefore: all equivalent changes made according to the structure, shape and principle of the application should be covered in the protection scope of the application.

Claims

1. An injection mold for producing a central control decorative plate of an automobile door and window, comprising a fixed mold module, a movable mold module, and a slant core-pulling mechanism, a mold core with a forming cavity is arranged at the joint of the fixed mold module and the movable mold module; characterized in that, The oblique core-pulling mechanism is arranged in the mold core, and comprises a slider seat, a core-pulling slider and a core-pulling pull rod, the slider seat is slidably connected to the fixed mold module in the horizontal direction, and a guide assembly for preventing jamming or breakage during movement is arranged at the connection between the slider seat and the fixed mold module, a T-shaped groove is formed in the slider seat, one end of the core-pulling slider is fixedly connected with a slider insert, and the slider insert is connected with the slider seat through the T-shaped groove; one end of the core-pulling pull rod extends into the slider seat, and the other end is connected with the fixed mold module.

2. The injection mold for producing a center console trim panel of an automobile door and window according to claim 1, characterized in that, The T-shaped groove is arranged downwardly inclined along the direction of the slider insert, and the inclination angle of the T-shaped groove is 30-80°.

3. The injection mold for producing a center console trim panel of an automobile door and window according to claim 2, characterized in that, The guide assembly comprises a guide slide rail and a guide plate, the guide slide rail is arranged along the length direction of the mold core, and the guide plate is slidably connected to the guide slide rail, and the other end of the guide plate is fixed with the slider seat.

4. The injection mold for producing a center console trim panel of an automobile door and window according to claim 3, characterized in that, The vertical section of the slider insert is a U-shaped structure, a pressing plate for bearing Z-direction load is arranged above the slider insert, an elastic element for reducing impact during movement is connected between the pressing plate and the slider insert, and the elastic element is a spring or a rubber pad.

5. The injection mold for producing a door and window control panel of an automobile according to claim 4, wherein The fixed mold module comprises a fixed mold base, a fixed mold gasket and a fixed mold plate, the fixed mold base, the fixed mold gasket and the fixed mold plate are sequentially stacked from top to bottom, a gate opening penetratingly communicating with a forming cavity is formed at the center position of the fixed mold base, and a row position rod is arranged on one side of the fixed mold gasket and the fixed mold plate.

6. The injection mold for producing a door and window control panel of an automobile according to claim 5, wherein The movable mold module comprises a movable mold base, movable mold feet and a movable mold plate, a positioning hole is formed at the bottom end of the movable mold base, a clamping machine is arranged on one side of the movable mold base, the clamping machine is arranged in close contact with the movable mold module, and one side of the clamping machine is clamped and connected to the rear mold plate; the movable mold feet are symmetrically fixedly connected to the movable mold base, and an ejection assembly is arranged between the movable mold feet; a sliding groove is formed in the movable mold plate at a position corresponding to the guide slide rail.

7. The injection mold for producing a door and window control panel of an automobile according to claim 6, wherein A plurality of water cooling pipes for cooling the mold core are arranged in the mold core, the plurality of water cooling pipes are crosswise arranged, and water inlets and outlets are arranged at two ends of the water cooling pipes, respectively.

8. The injection mold for producing a door and window control panel of an automobile according to claim 7, characterized in that, The ejection assembly comprises a ejector plate, ejector pins and inclined ejector rods, the ejector plate is arranged on the movable mold base and between the two movable mold feet, a plurality of ejector pins and inclined ejector rods are arranged, one end of the plurality of ejector pins and inclined ejector rods is fixed to the ejector plate, and the other end penetrates through the movable mold plate and abuts against the mold core.

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