Pneumatic profiling auxiliary forming cover

Abstract

The utility model discloses a pneumatic profiling auxiliary forming cover which comprises an auxiliary forming mechanism and a profiling cover, a top plate is arranged on the profiling cover, an air cylinder assembly is arranged on the profiling cover, a fixed assembly is arranged on the top plate, rotating plates are arranged on the two sides of the profiling cover, movable assemblies are arranged on the rotating plates, and a limiting assembly is arranged on one side of the profiling cover. An exhaust assembly is arranged on one side of the profiling cover. After gas-assisted forming of the mold, a rotating cap is pulled, a fourth spring is compressed, a limiting block leaves a limiting groove, the rotating cap is rotated, a threaded rod rotates, an exhaust pipe moves outwards, an exhaust port moves out, internal gas can be exhausted through the exhaust port, and the situation that the surface of a mold cavity is strained due to the fact that a product has large pressure difference is avoided; a pneumatic profiling auxiliary forming cover is damaged due to the problem of mold opening burst caused by method damage in a weak area of an overflow well; when the device is damaged or needs to be replaced, the wedge block is pushed to move the fixing block, the connecting block can be separated from the fixing groove, and the profiling cover can be detached and replaced conveniently.

Description

Technical fields:

[0001] This utility model relates to the field of automotive interior composite mold technology, specifically a pneumatic contouring assisted forming cover. Background technology:

[0002] Automotive interior trim parts are used to decorate the interior of a car and also to conceal the wiring and structure inside, keeping the passenger area clean and aesthetically pleasing. To improve the surface quality of automotive interior trim parts and avoid defects such as shrinkage and deformation that may occur when using injection molding with pressure holding, a pneumatic contour-assisted molding device can be used. This device injects inert high-pressure nitrogen gas when the plastic has filled the appropriate portion of the cavity. The gas pushes the molten plastic to continue filling the cavity, using gas pressure holding instead of plastic pressure holding.

[0003] After gas-assisted molding, the high-pressure gas in the hollow cavity of the product is not discharged, creating a significant pressure difference between the internal and external environments. This can cause surface scratches on the mold cavity and defects such as mold breakage and bursting at weak points in the product or in the overflow well, severely impacting the product yield and quality, and increasing the maintenance and investment costs of the gas-assisted molding device. Therefore, to solve these problems, we need to design a pneumatic contouring assisted molding cover. Utility Model Content:

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0005] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0006] A pneumatic contour-assisted forming cover, comprising:

[0007] An auxiliary forming mechanism includes a contouring cover, a top plate on the contouring cover, a cylinder assembly on the contouring cover, a fixing assembly on the top plate, rotating plates on both sides of the contouring cover, movable assemblies on the rotating plates, a limit assembly on one side of the contouring cover, and an exhaust assembly on one side of the contouring cover.

[0008] As a preferred embodiment of the pneumatic contouring auxiliary forming cover described in this utility model, the contouring cover is provided with positioning grooves on both sides, a limiting groove on the contouring cover, and an exhaust groove on the contouring cover.

[0009] As a preferred embodiment of the pneumatic contouring auxiliary forming cover described in this utility model, the top plate is provided with a through groove, the two sides of the top plate are fixedly connected with guide posts, and the bottom of the top plate is provided with a fixing groove.

[0010] As a preferred embodiment of the pneumatic contouring assisted forming cover of this utility model, the cylinder assembly includes a cylinder, a connecting block, a first spring, and a fixing block. The connecting block is provided with a movable groove and is fixedly connected to the cylinder. One end of the first spring is fixedly connected to the fixing block, and the other end of the first spring is fixedly connected to the inner wall of the movable groove.

[0011] In a preferred embodiment of the pneumatic contouring assisted forming cover of this utility model, the fixing component includes a wedge, a slide rod, and a second spring. The slide rod is fixedly connected to the through groove, one end of the second spring is fixedly connected to the wedge, and the other end of the second spring is fixedly connected to the side wall of the through groove. The wedge is slidably connected to the slide rod.

[0012] As a preferred embodiment of the pneumatic contouring assisted forming cover of this utility model, the movable component includes a positioning block, a pull plate and a third spring. The rotating plate is provided with a sliding groove. The pull plate is fixedly connected to the positioning block. One end of the third spring is fixedly connected to the positioning block, and the other end of the third spring is fixedly connected to the inner wall of the sliding groove.

[0013] In a preferred embodiment of the pneumatic contouring assisted forming cover of this utility model, the limiting component includes a rotating cap, a movable block, a fourth spring, a threaded rod, a limiting block, and a limiting plate. The movable block is fixedly connected to the inner cavity of the rotating cap, the limiting block is fixedly connected to the rotating cap, the limiting plate is fixedly connected to the threaded rod, the threaded rod is provided with a buffer groove, one end of the fourth spring is fixedly connected to the movable block, the other end of the fourth spring is fixedly connected to the side wall of the buffer groove, and the threaded rod is located in the exhaust groove.

[0014] As a preferred embodiment of the pneumatic contouring assisted forming cover of this utility model, the exhaust assembly includes a fixed rod, an exhaust pipe and a movable plate. The fixed rod is fixedly connected to the exhaust groove, the movable plate is fixedly connected to the exhaust pipe and slidably connected to the threaded rod. One end of the exhaust pipe is provided with an air inlet and the other end of the exhaust pipe is provided with an exhaust outlet.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: When using this device, after the mold is in gas-assisted molding, by pulling the rotating cap, the fourth spring is compressed, which can cause the limiting block to leave the limiting groove. Rotating the rotating cap then drives the threaded rod to rotate, causing the exhaust pipe to move outward, allowing the exhaust port to move out of the contour cover. This allows the internal gas to enter the exhaust pipe from the air inlet and exit through the exhaust port, avoiding large pressure differences between the product's internal and external environments, which could cause surface scratches on the mold cavity and damage to weak points in the product or the overflow well, leading to mold breakage and affecting the pneumatic contour-assisted molding cover's operation. Furthermore, when the device is damaged or needs replacement, pulling the pulling plate causes the positioning block to leave the positioning groove, allowing the rotating plate to rotate and expose the guide post, facilitating the removal of the contour cover. Simultaneously, pushing the wedge block moves the fixing block, allowing the connecting block to disengage from the fixing groove, facilitating the disassembly and replacement of the contour cover and improving efficiency. Attached image description:

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0017] Figure 1 This is a front view of the overall structure of a pneumatic contour-aided forming cover according to the present invention;

[0018] Figure 2 This is an exploded view of the overall structure of a pneumatic contour-aided forming cover according to this utility model;

[0019] Figure 3 This is a schematic diagram of the fixing component in a pneumatic contouring auxiliary forming cover according to the present invention;

[0020] Figure 4 This is a schematic diagram of the cylinder assembly in a pneumatic contouring auxiliary forming cover according to the present invention;

[0021] Figure 5 This is a schematic diagram of the movable components in a pneumatic contour-forming assisted cover according to this utility model;

[0022] Figure 6 This is a schematic diagram of the exhaust component in a pneumatic contouring assisted forming cover according to this utility model. Detailed implementation method:

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0026] Please see Figures 1-6 This utility model provides a pneumatic contouring assisted forming cover, comprising:

[0027] The auxiliary forming mechanism 100 includes a contour cover 101, a top plate 102 on the contour cover 101, a cylinder assembly 110 on the contour cover 101, a fixing assembly 120 on the top plate 102, rotating plates 103 on both sides of the contour cover 101, movable components 130 on the rotating plates 103, a limit assembly 140 on one side of the contour cover 101, and an exhaust assembly 150 on one side of the contour cover 101.

[0028] Specifically, the cylinder assembly 110 allows the contour cover 101 to move, facilitating the gas-assisted molding of automotive interior parts. After the mold is gas-assisted molded, the venting assembly 150 can be activated by the limiting assembly 140 to discharge the gas in the auxiliary molding mechanism 100, thereby balancing the internal and external air pressure and preventing damage to the device. Furthermore, the fixing assembly 120 separates the top plate 102 from the cylinder assembly 110, while the movable assembly 130 activates the rotating plate 103 to facilitate device replacement.

[0029] Please see Figures 1-4The contoured cover 101 has positioning grooves 101a on both sides, a limiting groove 101b on its surface, and an exhaust groove 101c on its surface. The top plate 102 has a through groove 102a, guide posts 102b are fixedly connected to both sides of the top plate 102, and a fixing groove 102c is provided at the bottom of the top plate 102. The cylinder assembly 110 includes a cylinder 110a, a connecting block 110b, a first spring 110c, and a fixing block 110d. The connecting block 110b has a movable groove 110e and is fixedly connected to the cylinder 110a. One end of the first spring 110c is fixedly connected to the fixing block 110d, and the other end of the first spring 110c is fixedly connected to the inner wall of the movable groove 110e. The fixing assembly 120 includes a wedge 120a, a slide rod 120b, and a second spring 120c. The slide rod 120b is fixedly connected to the through groove 102a. One end of the second spring 120c is fixedly connected to the wedge 120a, and the other end of the second spring 120c is fixedly connected to the side wall of the through groove 102a. The wedge 120a is slidably connected to the slide rod 120b.

[0030] Specifically, by pushing the wedge block 120a, the fixing block 110d moves, causing the first spring 110c to compress, thereby allowing the connecting block 110b to disengage from the fixing groove 102c. This allows the top plate 102 to be separated from the contour cover 101, facilitating the disassembly and replacement of the contour cover 101. This prevents the device from being damaged due to excessive internal and external pressure differences, which could affect its operation.

[0031] Please see Figures 1-5 The movable component 130 includes a positioning block 130a, a pull plate 130b, and a third spring 130c. A groove 103a is provided on the rotating plate 103. The pull plate 130b is fixedly connected to the positioning block 130a. One end of the third spring 130c is fixedly connected to the positioning block 130a, and the other end of the third spring 130c is fixedly connected to the inner wall of the groove 103a.

[0032] Specifically, by pulling the pull plate 130b, the positioning block 130a can be moved, allowing the positioning block 130a to leave the positioning groove 101a, making it easier to rotate the rotating plate 103, thereby releasing the restriction on the guide post 102b and making it easier to remove and replace the contour cover 101.

[0033] Please see Figures 1-6The limiting assembly 140 includes a rotating cap 140a, a movable block 140b, a fourth spring 140c, a threaded rod 140d, a limiting block 140e, and a limiting plate 140f. The movable block 140b is fixedly connected to the inner cavity of the rotating cap 140a, the limiting block 140e is fixedly connected to the rotating cap 140a, and the limiting plate 140f is fixedly connected to the threaded rod 140d. A buffer groove 140g is provided on the threaded rod 140d. One end of the fourth spring 140c is fixedly connected to the movable block 140b, and the other end of the fourth spring 140c is fixedly connected to the side wall of the buffer groove 140g. The threaded rod 140d is located in the exhaust groove 101c. The exhaust assembly 150 includes a fixed rod 150a, an exhaust pipe 150b, and a movable plate 150c. The fixed rod 150a is fixedly connected to the exhaust groove 101c, the movable plate 150c is fixedly connected to the exhaust pipe 150b, and the movable plate 150c is slidably connected to the threaded rod 140d. One end of the exhaust pipe 150b is provided with an air inlet 150d, and the other end of the exhaust pipe 150b is provided with an exhaust outlet 150e.

[0034] Specifically, by pulling the rotating cap 140a, the limiting block 140e is disengaged from the limiting groove 101b, making it easier to rotate the rotating cap 140a. By rotating the rotating cap 140a, the threaded rod 140d rotates, driving the movable plate 150c to move, which allows the exhaust pipe 150b to move outward, thus exposing the exhaust port 150e from the exhaust groove 101c. This facilitates the discharge of gas from inside the device through the air inlet 150d and out through the exhaust port 150e, reducing the pressure difference between the inside and outside of the device. This prevents large pressure differences between the internal and external environments from causing surface scratches on the mold cavity and cracks in weak areas of the product or the overflow well, which could damage the device and affect its operation.

[0035] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A pneumatic contour-aided forming cover, characterized in that, include: The auxiliary forming mechanism (100) includes a contour cover (101), a top plate (102) on the contour cover (101), a cylinder assembly (110) on the contour cover (101), a fixing assembly (120) on the top plate (102), rotating plates (103) on both sides of the contour cover (101), a movable assembly (130) on the rotating plate (103), a limiting assembly (140) on one side of the contour cover (101), and an exhaust assembly (150) on one side of the contour cover (101).

2. The pneumatic contour-aided forming cover according to claim 1, characterized in that, The contoured cover (101) has positioning grooves (101a) on both sides, a limiting groove (101b) on the contoured cover (101), and an exhaust groove (101c) on the contoured cover (101).

3. The pneumatic contour-aided forming cover according to claim 2, characterized in that, The top plate (102) is provided with a through groove (102a), and guide posts (102b) are fixedly connected to both sides of the top plate (102). The bottom of the top plate (102) is provided with a fixing groove (102c).

4. The pneumatic contour-aided forming cover according to claim 3, characterized in that, The cylinder assembly (110) includes a cylinder (110a), a connecting block (110b), a first spring (110c), and a fixing block (110d). The connecting block (110b) is provided with a movable groove (110e). The connecting block (110b) is fixedly connected to the cylinder (110a). One end of the first spring (110c) is fixedly connected to the fixing block (110d), and the other end of the first spring (110c) is fixedly connected to the inner wall of the movable groove (110e).

5. A pneumatic contour-aided forming cover according to claim 4, characterized in that, The fixing assembly (120) includes a wedge (120a), a slide rod (120b), and a second spring (120c). The slide rod (120b) is fixedly connected to the through groove (102a). One end of the second spring (120c) is fixedly connected to the wedge (120a), and the other end of the second spring (120c) is fixedly connected to the side wall of the through groove (102a). The wedge (120a) is slidably connected to the slide rod (120b).

6. A pneumatic contour-aided forming cover according to claim 2, characterized in that, The movable component (130) includes a positioning block (130a), a pull plate (130b), and a third spring (130c). The rotating plate (103) is provided with a sliding groove (103a). The pull plate (130b) is fixedly connected to the positioning block (130a). One end of the third spring (130c) is fixedly connected to the positioning block (130a), and the other end of the third spring (130c) is fixedly connected to the inner wall of the sliding groove (103a).

7. A pneumatic contour-aided forming cover according to claim 2, characterized in that, The limiting assembly (140) includes a rotating cap (140a), a movable block (140b), a fourth spring (140c), a threaded rod (140d), a limiting block (140e), and a limiting plate (140f). The movable block (140b) is fixedly connected to the inner cavity of the rotating cap (140a), the limiting block (140e) is fixedly connected to the rotating cap (140a), and the limiting plate (140f) is fixedly connected to the threaded rod (140d). A buffer groove (140g) is provided on the threaded rod (140d). One end of the fourth spring (140c) is fixedly connected to the movable block (140b), and the other end of the fourth spring (140c) is fixedly connected to the side wall of the buffer groove (140g). The threaded rod (140d) is located in the exhaust groove (101c).

8. A pneumatic contour-aided forming cover according to claim 7, characterized in that, The exhaust assembly (150) includes a fixed rod (150a), an exhaust pipe (150b), and a movable plate (150c). The fixed rod (150a) is fixedly connected to the exhaust groove (101c), the movable plate (150c) is fixedly connected to the exhaust pipe (150b), and the movable plate (150c) is slidably connected to the threaded rod (140d). One end of the exhaust pipe (150b) is provided with an air inlet (150d), and the other end of the exhaust pipe (150b) is provided with an exhaust outlet (150e).

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