A demoulding mechanism for an instrument panel skeleton injection mould

Abstract

The utility model discloses a kind of demolding mechanism of instrument panel skeleton injection mold, belong to instrument panel skeleton injection demolding technical field, including upper door frame, upper die, lower door frame and lower die, upper door frame is provided with rotating part, rotating part includes intermittent motor, connecting disc and rotating frame, upper air cylinder is fixed symmetrically in the center of rotating frame inside, a group of piston rod in upper air cylinder is movably penetrated rotating frame bottom end and upper die connection, piston rod in the other group of upper air cylinder is movably penetrated rotating frame bottom end and is connected with buffer, buffer includes fixed plate, guide column, spring and buffer plate, lower die is fixed in lower door frame top end, lower door frame top end is provided with through slot, lower door frame below is installed with lower air cylinder, piston rod end portion in lower air cylinder inside is connected with top plate, upper door frame outside is connected with PLC controller, PLC controller electrically controls intermittent motor, upper air cylinder and lower air, by above-mentioned mode, make that skeleton slowly and lower die inner wall separate, avoid its direct and lower die separation cause side wall damage.

Description

Technical Field

[0001] This utility model relates to the field of instrument panel frame injection molding demolding technology, specifically to a demolding mechanism for an instrument panel frame injection mold. Background Technology

[0002] The car dashboard is the core device that centrally displays the vehicle's operating status. It is mainly used to monitor and provide feedback on the working status of various systems. Its core functions include real-time display of basic data such as vehicle speed, engine speed, fuel level, and coolant temperature, and it uses indicator lights and warning lights to indicate faults or abnormal conditions. It is mainly composed of a dashboard frame and various instruments such as speedometer, tachometer, oil pressure gauge, and other conventional instruments and indicator lights. Its frame is generally made by injection molding.

[0003] When injection molding the dashboard frame, since the frame is generally a cylindrical structure with a rectangular center, the perimeter and bottom are prone to sticking to the inner wall of the lower mold after demolding. Traditionally, manual force is used for demolding. To improve efficiency, an ejection mechanism is set below the lower mold for direct ejection. However, in actual ejection, the side walls of the product are directly and forcefully ejected from the lower mold, which can cause damage to the side walls and affect the product molding quality.

[0004] Based on this, this utility model designs a demolding mechanism for an instrument panel frame injection mold to solve the above problems. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a demolding mechanism for an injection mold of an instrument panel frame.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A demolding mechanism for an injection mold of an instrument panel frame includes an upper mast, an upper mold, a lower mast, and a lower mold. A rotating component is mounted on the upper mast, comprising an intermittent motor, a connecting plate, and a rotating frame. The intermittent motor is mounted on the top of the upper mast, and its output end is threadedly connected to the connecting plate. The connecting plate rotates below the upper mast, and the rotating frame is fixed below the connecting plate. Upper cylinders are symmetrically fixed on both sides of the center of the rotating frame. The piston rod of one set of upper cylinders moves through the bottom end of the rotating frame and connects to the upper mold, while the piston rod of the other set of upper cylinders moves through the bottom end of the rotating frame. A buffer component is connected, comprising a fixed plate, a guide post, a spring, and a buffer plate. The fixed plate is fixed to the end of the piston rod inside the upper cylinder. The guide post is fixed to the center of the top of the fixed plate, and the spring is located on its outer side. The buffer plate is fixed to the end of the spring. The lower mold is fixed to the top of the lower gantry. A through slot is opened at the top of the lower gantry. A lower cylinder is installed below the lower gantry. The end of the piston rod inside the lower cylinder is connected to a top plate. A PLC controller is connected to the outside of the upper gantry. The PLC controller electrically controls the intermittent motor, the upper cylinder, and the lower cylinder.

[0007] Furthermore, the vertical distance from the bottom of the rotating frame to the top of the lower mold is greater than the height of the lower mold, the extension and retraction length of the piston rod inside the upper cylinder is greater than the vertical distance from the bottom of the rotating frame to the top of the lower mold, and the extension and retraction height of the piston rod inside the lower cylinder is greater than twice the height of the lower mold.

[0008] Furthermore, the upper mold is threadedly fixed to the end of the upper cylinder piston rod, the rotating frame is threadedly fixed to the end of the connecting plate, the lower mold is threadedly fixed to the top of the lower mast, and the top plate is threadedly fixed to the end of the lower cylinder piston rod.

[0009] Furthermore, the vertical cross-section of the through groove is T-shaped, and the top plate is configured to cooperate with the through groove.

[0010] Furthermore, a limiting component is installed at the top of the lower gantry. The limiting component includes a side plate, a screw, a servo motor, an adjusting block, and a limiting plate. The side plate is fixed to the top of the lower gantry. The screw rotates through the side plate and is connected to the output end of the servo motor. The adjusting block is symmetrically threaded on both sides of the center of the screw. The limiting plate is fixed to the top of the adjusting block.

[0011] Furthermore, an auxiliary plate is installed at the top of the lower gantry, a guide rod is fixed between the auxiliary plates, an auxiliary block slides on the guide rod, and a limiting plate is fixed on the auxiliary block.

[0012] Furthermore, the screw includes a smooth central portion and threaded portions on both sides, with a limit ring fixed at one end of the threaded portion.

[0013] Furthermore, the side plate and auxiliary plate are threadedly fixed to the top of the lower gantry, and the limiting plate is threadedly fixed to the adjusting block and auxiliary block. Beneficial effects

[0014] 1. After the skeleton has cooled and formed, the rotating component moves the buffer component to the top of the lower mold. During the process of the top plate ejecting the skeleton, the elastic compression of the spring applies a downward force to the skeleton from the top, so that the skeleton slowly separates from the inner wall of the lower mold, avoiding direct separation from the lower mold and causing damage to the side wall. 2. By setting limit components, auxiliary plates, guide rods, and auxiliary blocks, after the skeleton and lower mold separate, the servo motor drives the screw to rotate, driving the two sets of limit plates to move so that they are above the lower mold at the bottom of the skeleton. The lower cylinder drives the skeleton to move down, so that it falls on the limit plates. Then, the upper cylinder drives the buffer component to move down, so that the buffer plate contacts the skeleton again. The spring applies pressure to it, and the lower cylinder drives the top plate to reset and move down, separating it from the skeleton. During the separation process, the skeleton receives downward pressure. When it is pulled apart by the top plate, it is buffered again to prevent the bottom of the skeleton from breaking when it separates from the top plate, thus realizing the demolding of the bottom of the skeleton. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. 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.

[0016] Figure 1 This is a three-dimensional structural view of a demolding mechanism for an injection mold of an instrument panel frame according to the present invention; Figure 2 This is a three-dimensional view of the buffer component structure of the demolding mechanism of an injection mold for an instrument panel frame according to the present invention; Figure 3 This is a three-dimensional view of the limiting component structure of the demolding mechanism of an injection mold for an instrument panel frame according to this utility model; Figure 4 This is a perspective view of the through-groove structure of the demolding mechanism of an injection mold for an instrument panel frame according to the present invention.

[0017] The labels in the diagram represent: 1. Upper gantry; 2. Upper mold; 3. Lower gantry; 4. Lower mold; 5. Intermittent motor; 6. Connecting plate; 7. Rotating frame; 8. Upper cylinder; 9. Fixing plate; 10. Guide column; 11. Spring; 12. Buffer plate; 13. Through slot; 14. Lower cylinder; 15. Top plate; 16. PLC controller; 17. Side plate; 18. Screw; 19. Servo motor; 20. Adjusting block; 21. Limit plate; 22. Auxiliary plate; 23. Guide rod; 24. Auxiliary block; 25. Smooth part; 26. Threaded part; 27. Limit ring. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0019] The present invention will be further described below with reference to the embodiments.

[0020] In some embodiments, please refer to the accompanying drawings. Figure 1 , Figure 2 and Figure 4 The system includes an upper gantry 1, an upper mold 2, a lower gantry 3, and a lower mold 4. The upper gantry 1 is equipped with a rotating component, which includes an intermittent motor 5, a connecting plate 6, and a rotating frame 7. The intermittent motor 5 is mounted at the top of the upper gantry 1, and its output end is threadedly connected to the connecting plate 6. The connecting plate 6 rotates below the upper gantry 1. The rotating frame 7 is fixed below the connecting plate 6. Symmetrically fixed upper cylinders 8 are located on both sides of the center of the rotating frame 7. The piston rod of one set of upper cylinders 8 moves through the bottom of the rotating frame 7 and connects to the upper mold 2. The piston rod of the other set of upper cylinders 8 moves through the bottom of the rotating frame 7 and connects to a buffer component. The buffer component includes a fixed... Plate 9, guide post 10, spring 11 and buffer plate 12, fixed plate 9 is fixed to the piston rod end inside the upper cylinder 8, guide post 10 is fixed to the top center of fixed plate 9 and spring 11 is set on its outside, buffer plate 12 is fixed to the end of spring 11, lower mold 4 is fixed to the top of lower gantry 3, the top of lower gantry 3 is provided with through groove 13, lower cylinder 14 is installed below lower gantry 3, the piston rod end inside lower cylinder 14 is connected to top plate 15, PLC controller 16 is connected to the outside of upper gantry 1, PLC controller 16 electrically controls intermittent motor 5, upper cylinder 8 and lower cylinder 14; In this embodiment of the utility model, when demolding is required, the PLC controller 16 controls the operation of various electrical devices. First, a set of upper cylinders 8 is started to drive the upper mold 2 to reset, so that the top of the lower mold 4 is exposed. Then, the intermittent motor 5 is used to drive the connecting plate 6 to rotate, thereby causing the rotating frame 7 to rotate, and thus the buffer is positioned above the lower mold 4. Next, another set of upper cylinders 8 is started to drive the buffer to move down, so that the buffer plate 12 contacts the skeleton. Then, the lower cylinder 14 is started, and the top plate 15 is used to push it out from below the skeleton. During the process of the top plate 15 being pushed out, the elastic compression of the spring 11 is used to apply a downward force to the skeleton from the top, so that the skeleton slowly separates from the inner wall of the lower mold 4, avoiding direct separation from the lower mold 4 and causing damage to the side wall. Demolding is achieved until the skeleton and the lower mold 4 are completely separated. At the same time, the upper cylinder 8 is used to reset the buffer, so that the buffer plate 12 rises and gradually separates from the skeleton. In this embodiment of the utility model, by setting a rotating component and a buffer component, after the skeleton is cooled and formed, the rotating component is used to move the buffer component above the lower mold 4. During the process of the top plate 15 ejecting the skeleton, the elastic compression of the spring 11 is used to apply a downward force to the skeleton from the top, so that the skeleton slowly separates from the inner wall of the lower mold 4, avoiding direct separation from the lower mold 4 and causing damage to the side wall. In one embodiment of this utility model, the vertical distance from the bottom of the rotating frame 7 to the top of the lower mold 4 is greater than the height of the lower mold 4; the extension and retraction length of the piston rod inside the upper cylinder 8 is greater than the vertical distance from the bottom of the rotating frame 7 to the top of the lower mold 4; and the extension and retraction height of the piston rod inside the lower cylinder 14 is greater than twice the height of the lower mold 4, ensuring that the height between the lower mold 4 and the rotating frame 7 is sufficient for the separation of the skeleton and the lower mold 4; the upper mold 2 is threadedly fixed to the end of the piston rod of the upper cylinder 8, the rotating frame 7 is threadedly fixed to the end of the connecting plate 6, the lower mold 4 is threadedly fixed to the top of the lower frame 3, and the top plate 15 is threadedly fixed to the end of the piston rod of the lower cylinder 14, facilitating the loading and unloading of the upper mold 2, the lower mold 4, and the top plate 15; the vertical section of the through groove 13 is T-shaped, and the top plate 15 is set to cooperate with the through groove 13, improving the sealing performance when the top plate 15 is located inside the through groove 13; In some embodiments, such as Figure 1 , Figure 2 and Figure 3As shown, a limiting component is installed at the top of the lower gantry 3. The limiting component includes a side plate 17, a screw 18, a servo motor 19, an adjusting block 20, and a limiting plate 21. The side plate 17 is fixed to the top of the lower gantry 3. The screw 18 rotates through the side plate 17 and is connected to the output end of the servo motor 19. The screw 18 includes a smooth part 25 in the center and threaded parts 26 on both sides. A limiting ring 27 is fixed at one end of the threaded part 26. The adjusting block 20 is symmetrically threaded on both sides of the center of the screw 18. The limiting plate 21 is fixed to the top of the adjusting block 20. An auxiliary plate 22 is installed at the top of the lower gantry 3. A guide rod 23 is fixed between the auxiliary plates 22. An auxiliary block 24 slides on the guide rod 23. The limiting plate 21 is fixed on the auxiliary block 24. The side plate 17 and the auxiliary plate 22 are threadedly fixed to the top of the lower gantry 3. The limiting plate 21 is threadedly fixed to the adjusting block 20 and the auxiliary block 24. In this embodiment of the invention, when demolding is required, the PLC controller 16 controls the operation of various electrical devices. First, a set of upper cylinders 8 is activated to reset the upper mold 2, causing the top of the lower mold 4 to protrude. Then, the intermittent motor 5 drives the connecting plate 6 to rotate, thereby causing the rotating frame 7 to rotate, and thus placing the buffer above the lower mold 4. Next, another set of upper cylinders 8 is activated to drive the buffer to move downward, causing the buffer plate 12 to contact the frame. Then, the lower cylinder 14 is activated, using the top plate 15 to push the frame out from below. During the pushing out process of the top plate 15, the elastic compression of the spring 11 applies a downward force to the frame from the top, causing the frame to slowly separate from the inner wall of the lower mold 4, avoiding direct separation from the lower mold 4 and causing damage to the side wall. This continues until the frame and the lower mold 4 are completely separated. The demolding process begins, and simultaneously, the upper cylinder 8 is used to reset the buffer component, causing the buffer plate 12 to rise and gradually separate from the skeleton. Then, the servo motor 19 is started, driving the screw 18 to rotate. With the threaded engagement of the screw and the adjusting block 20, and with the assistance of the auxiliary block 24 and the guide rod 23, the two sets of limiting plates 21 are driven to move, positioning them above the lower mold 4 at the bottom of the skeleton. Next, the lower cylinder 14 drives the skeleton to move downward, causing it to fall onto the limiting plate 21. Then, the upper cylinder 8 drives the buffer component to move downward, causing the buffer plate 12 to contact the skeleton again. The spring 11 applies pressure to it, and the lower cylinder 14 drives the top plate 15 to reset and move downward, separating it from the skeleton. During the separation process, the skeleton receives downward pressure, and when it is pulled apart by the top plate 15, it is buffered again, achieving demolding at the bottom of the skeleton. In this embodiment of the utility model, by setting a limiting component, an auxiliary plate 22, a guide rod 23 and an auxiliary block 24, after the skeleton and the lower mold 4 are separated, the lower cylinder 14 drives the top plate 15 to reset and move downward during the process of separation from the skeleton. The skeleton receives downward pressure and is buffered again when it is pulled down by the top plate 15 to prevent the bottom of the skeleton from breaking when it separates from the top plate 15, thus realizing the demolding of the bottom of the skeleton. The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A demolding mechanism for an injection mold of an instrument panel frame, comprising an upper gantry (1), an upper mold (2), a lower gantry (3), and a lower mold (4), characterized in that: The upper gantry (1) is provided with a rotating component, which includes an intermittent motor (5), a connecting plate (6), and a rotating frame (7). The intermittent motor (5) is installed at the top of the upper gantry (1) and its output end is threadedly connected to the connecting plate (6). The connecting plate (6) rotates below the upper gantry (1). The rotating frame (7) is fixed below the connecting plate (6). Upper cylinders (8) are symmetrically fixed on both sides of the center of the rotating frame (7). The piston rod of one set of upper cylinders (8) moves through the bottom end of the rotating frame (7) and connects to the upper mold (2). The piston rod of the other set of upper cylinders (8) moves through the bottom end of the rotating frame (7) and connects to a buffer component. The buffer component includes a fixing plate (9), a guide post (10), and a spring (11). The upper cylinder (8) and the buffer plate (12) are fixed. The fixed plate (9) is fixed to the piston rod end inside the upper cylinder (8). The guide column (10) is fixed to the top center of the fixed plate (9) and the spring (11) is set on its outside. The buffer plate (12) is fixed to the end of the spring (11). The lower mold (4) is fixed to the top of the lower gantry (3). The top of the lower gantry (3) is provided with a through groove (13). The lower cylinder (14) is installed below the lower gantry (3). The piston rod end inside the lower cylinder (14) is connected to the top plate (15). The upper gantry (1) is connected to the outside of the PLC controller (16). The PLC controller (16) electrically controls the intermittent motor (5), the upper cylinder (8) and the lower cylinder (14).

2. The demolding mechanism of the instrument panel frame injection mold according to claim 1, characterized in that, The vertical distance from the bottom of the rotating frame (7) to the top of the lower mold (4) is greater than the height of the lower mold (4). The length of the extension and retraction of the piston rod inside the upper cylinder (8) is greater than the vertical distance from the bottom of the rotating frame (7) to the top of the lower mold (4). The height of the extension and retraction of the piston rod inside the lower cylinder (14) is greater than twice the height of the lower mold (4).

3. The demolding mechanism of the instrument panel frame injection mold according to claim 1, characterized in that, The upper mold (2) is threaded to the end of the piston rod of the upper cylinder (8), the rotating frame (7) is threaded to the end of the connecting plate (6), the lower mold (4) is threaded to the top of the lower gantry (3), and the top plate (15) is threaded to the end of the piston rod of the lower cylinder (14).

4. The demolding mechanism of the instrument panel frame injection mold according to claim 3, characterized in that, The vertical cross-section of the through groove (13) is T-shaped, and the top plate (15) is set in conjunction with the through groove (13).

5. The demolding mechanism of the instrument panel frame injection mold according to claim 1, characterized in that, The lower gantry (3) is equipped with a limiting component at its top. The limiting component includes a side plate (17), a screw (18), a servo motor (19), an adjusting block (20), and a limiting plate (21). The side plate (17) is fixed at the top of the lower gantry (3). The screw (18) rotates through the side plate (17) and is connected to the output end of the servo motor (19). The adjusting block (20) is symmetrically threaded on both sides of the center of the screw (18). The limiting plate (21) is fixed at the top of the adjusting block (20).

6. The demolding mechanism of the instrument panel frame injection mold according to claim 5, characterized in that, An auxiliary plate (22) is installed at the top of the lower gantry (3), and a guide rod (23) is fixed between the auxiliary plates (22). An auxiliary block (24) slides on the guide rod (23), and the limiting plate (21) is fixed on the auxiliary block (24).

7. The demolding mechanism of the instrument panel frame injection mold according to claim 5, characterized in that, The screw (18) includes a smooth portion (25) in the center and threaded portions (26) on both sides, with a limit ring (27) fixed at one end of the threaded portion (26).

8. The demolding mechanism of the instrument panel frame injection mold according to claim 6, characterized in that, The side plate (17) and auxiliary plate (22) are threadedly fixed to the top of the lower gantry (3), and the limiting plate (21) is threadedly fixed to the adjusting block (20) and auxiliary block (24).

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