Compression molding device for thermal insulation pad of front cabin cover

Abstract

A compression molding device for a heat insulation pad of a front cabin cover comprises a base, a top plate, a compression molding block, a push plate, a mounting plate, an air cylinder, a compression molding die, two supporting plates and two push plates. A sliding groove is formed in the supporting plate. A sliding block is slidably connected into the sliding groove. An insertion hole is formed in the sliding block. A cavity is formed in the base. A lifting plate, two lifting rods and two push rods are arranged in the cavity. A clamping block is fixed to the outer side wall of the lifting rod. And a connecting block is fixed on the mounting plate. And an inner cavity is formed in the connecting block. Through grooves are formed in the top ends of the connecting blocks. And a spring insertion rod structure corresponding to the insertion hole is arranged in the inner cavity. The spring insertion rod structure comprises an insertion rod body, a spring body, a button, a shifting block, a sleeve and two annular clamping plates. The mold pressing and demolding work can be completed through one air cylinder, the manufacturing cost is reduced, a worker only needs to operate one air cylinder, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of heat insulation pad molding equipment, specifically a front engine hood heat insulation pad molding device. Background Technology

[0002] Chinese Patent CN219855623U discloses a heat insulation pad molding device, including a support plate, support rods fixedly installed on both sides of the top of the support plate, a top plate fixedly installed on the top of the support rods, a molding cylinder fixedly installed on the top of the top plate, and an installation plate fixedly installed on the output end of the molding cylinder. This invention uses a demolding cylinder to drive a movable plate upwards, which in turn drives a connecting rod and a push plate upwards. The push plate pushes open the heat insulation pad, allowing it to gradually detach from the mold, facilitating demolding. It also solves the problem that in heat insulation pad manufacturing, molding is necessary, but after molding, the heat insulation pad's sides are tightly adhered to the inner wall of the mold, making it difficult to remove from the mold, resulting in wasted time and reduced production efficiency.

[0003] This invention requires an additional demolding cylinder, which not only increases manufacturing costs but also requires workers to operate an extra cylinder, thus reducing work efficiency to some extent.

[0004] Therefore, this utility model proposes a technical solution to address the problem that the additional cylinder not only increases manufacturing costs but also reduces work efficiency to some extent. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a front hood heat insulation pad molding device, which aims to achieve the technical effect of completing the molding and demolding work with a single cylinder, reducing manufacturing costs, and requiring only one operator to operate the cylinder, thus improving work efficiency.

[0006] A front hood heat insulation pad molding device includes a base, a top plate, a cylinder, a molding die, and two support plates. The two support plates are fixed to the top of the base and are symmetrically arranged. The top plate is fixed between the tops of the two support plates. The cylinder is mounted on the top of the top plate, and the piston rod of the cylinder vertically downwards through the top plate and is fixed to a mounting plate. A pressure module is fixed to the bottom end of the mounting plate. The molding die is fixed to the top of the base and corresponds to the pressure module. Two receiving slots are formed in the inner bottom wall of the molding die, and push plates are slidably connected to each of the two receiving slots. Each of the two support plates has an opening on its opposite side. The base is provided with vertically extending grooves, each containing a slider slidably connected to it. Each slider has an insertion hole on an opposite side. The base has an internal cavity containing a lifting plate, two lifting rods, and two push rods. The lifting plate moves vertically along the cavity wall. Each lifting rod corresponds to one of the two grooves; the top of each lifting rod is fixedly connected to the bottom of the slider, and the bottom of each lifting rod extends vertically downwards, sliding into the cavity and fixedly connected to the lifting plate. Each push rod corresponds to one of the two push plates, with the top of each push rod fixedly connected to the bottom of the push plate. The bottom end of the push rod extends vertically downward and slides into the cavity, passing through the lifting plate with a clearance fit. A locking block is fixed to the outer wall of the lifting rod, located within the cavity and corresponding to the top of the lifting plate. Connecting blocks are fixed to both sides of the mounting plate, each corresponding to a slider. Each connecting block has an inner cavity, and its top end has a through groove communicating with the inner cavity. Inside the inner cavity is a spring-loaded rod structure corresponding to the insertion hole. The spring-loaded rod structure includes a rod body, a button, and a sleeve. One end of the button is located within the inner cavity and fixed with a toggle block. The other end passes through the through groove and exits the inner cavity, located above the connecting block. The middle position of the button is rotatably connected between the front and rear walls of the inner cavity via a pin. The sleeve is fixed inside the inner cavity. The insert rod body is located inside the inner cavity and below the corresponding button. One end of the insert rod body is slidably connected to the sleeve and a spring body is fixedly connected between it and the inner bottom wall of the sleeve. The other end of the insert rod body is slidably connected to exit the inner cavity and is inserted into the insertion hole. Its bottom end is provided with an inclined surface. Two annular retaining plates are fixedly fitted on the outside of the insert rod body. The two annular retaining plates are respectively attached to the left and right sides of the lever block.

[0007] By adopting the above technical solution, after molding is completed, the cylinder is activated, and the piston rod of the cylinder retracts, driving the mounting plate and the pressure module upward. The mounting plate drives the connecting block upward. At this time, since one end of the insert rod body is located in the insertion hole and the other end is located inside the inner cavity, the connecting block and the slider are fixedly connected by the insert rod. The connecting block can drive the slider to move upward along the slide groove. The slider drives the lifting rod to move upward. The lifting rod drives the lifting plate upward. The mounting plate, pressure module, and lifting plate first move upward a certain distance until the pressure module is completely separated from the molding die. At this time, the push plate is not affected by the lifting plate. Then the mounting plate, pressure module, and lifting plate continue to move upward, and the lifting plate will contact the locking block. At this time, the lifting plate will drive the locking block to move upward. The locking block drives the push rod to move upward. The push rod drives the push plate to move upward. The push plate pushes open the heat insulation pad, so that the heat insulation pad gradually detaches from the inside of the molding die, achieving the purpose of facilitating the demolding of the heat insulation pad. When the piston rod of the cylinder is fully retracted, the top of the connecting block fits with the bottom of the top plate. The top plate press button, with its center pivotally connected to the front and rear walls of the inner cavity via a pin, allows the button to rotate within the cavity and through slot. This rotation, via a lever and annular retaining plate, moves the insert rod body into the sleeve. The end of the insert rod body that was originally inserted into the insertion hole is pulled out, and simultaneously, the spring body is pressed, creating a rebound force towards the outside of the sleeve. When the insert rod body is completely pulled out of the insertion hole, the slider and connecting block are no longer fixed. The slider, lifting rod, and lifting plate automatically move downwards to reset under their own weight. As the lifting plate moves downwards, it no longer supports the retaining block, so the push plate, push rod, and retaining block also automatically move downwards to reset under their own weight. When molding is required again, the cylinder is activated, extending its piston rod and moving the mounting plate, pressing module, and connecting block downwards. As the connecting block moves downwards, the button separates from the top plate, and the insert rod body, under the rebound force of the spring body, pops out and inserts into the slide groove. As the connecting block continues to move downwards, the inclined surface presses against the slider. The force on the inclined surface can be decomposed into a force directed towards the inner cavity, causing the insert rod body to retract into the inner cavity, and the spring body generates a rebound force. When the pressure module and the pressure mold are fully engaged for molding, the insert rod body and the insertion hole are perfectly aligned. Under the rebound force of the spring body, one end of the insert rod body is inserted back into the insertion hole, thus fixing the connecting block and the slider together again.

[0008] In this invention, during the downward movement of the mounting plate and pressure module for molding, the connecting block automatically connects to the slider. After molding is complete, as the mounting plate and pressure module move upward, the connecting block, via the slider and lifting rod, drives the lifting plate upward. The lifting plate, via a locking block and push rod, drives the push plate upward, thus automatically moving the push plate upward for demolding when the mounting plate and pressure module return to their upward position. After the mounting plate and pressure module return to their upward position, the connecting block automatically separates from the slider, and the push plate automatically returns to its original position. Therefore, molding and demolding can be completed with a single cylinder, reducing manufacturing costs and improving work efficiency as only one cylinder needs to be operated.

[0009] A further feature of this invention is that strip-shaped limiting grooves are provided on both the front and rear sides of the slide groove, and a limiting block is fixed on the slider for inserting into the strip-shaped limiting groove and moving up and down along the strip-shaped limiting groove.

[0010] By adopting the above technical solution, when the slider moves up and down along the slide groove, it drives the limiting block to move up and down along the strip limiting groove, thereby improving the stability of the slider when it moves up and down.

[0011] A further feature of this invention is that a first guide rod is fixedly connected between the upper and lower walls of the cavity, and the lifting plate is slidably fitted onto the outside of the first guide rod.

[0012] By adopting the above technical solution, the lifting plate moves up and down along the first guide rod during the up and down movement, thereby improving the stability of the lifting plate when moving up and down.

[0013] A further feature of this invention is that a first spring, sleeved on the outside of the first guide rod, is fixedly connected between the top of the lifting plate and the inner top wall of the cavity.

[0014] By adopting the above technical solution, when the lifting plate moves upward, the first spring is compressed to generate a downward rebound force. When the slider and the connecting block are no longer fixed, the rebound force of the first spring, together with the gravity of the slider, lifting rod, and lifting plate, ensures that the slider, lifting rod, and lifting plate can quickly move downward and reset.

[0015] A further feature of this invention is that a second spring, sleeved on the outside of the push rod, is fixedly connected between the top of the card block and the inner top wall of the cavity.

[0016] By adopting the above technical solution, when the locking block moves upward, the second spring is compressed to generate a downward rebound force. When the lifting plate moves downward and no longer supports the locking block, the rebound force of the second spring, together with the gravity of the push plate, push rod, and locking block, ensures that the push plate can quickly move downward and reset into the storage slot.

[0017] A further feature of this invention is that a sleeve located below the lifting plate is fixed on the inner bottom wall of the cavity, and the bottom end of the push rod is slidably inserted into the sleeve.

[0018] By adopting the above technical solution, the push rod moves up and down along the sleeve, which improves the stability of the push rod when moving up and down.

[0019] A further feature of this invention is that a second guide rod is fixed between the base and the top plate, and a sliding seat that is slidably sleeved on the outside of the second guide rod is fixed on the mounting plate.

[0020] By adopting the above technical solution, the slide moves up and down along the second guide rod during the up and down movement of the mounting plate, thereby improving the stability of the mounting plate when it moves up and down.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] A front hood heat insulation pad molding device is disclosed. During the downward molding process of the mounting plate and pressure module, a connecting block automatically connects with the slider. After molding is complete, as the mounting plate and pressure module move upward, the connecting block drives a lifting plate upward via the slider and lifting rod. The lifting plate then drives a push plate upward via a locking block and push rod. Thus, when the mounting plate and pressure module return to their upward position, the push plate automatically moves upward for demolding. After the mounting plate and pressure module return to their upward position, the connecting block automatically separates from the slider, and the push plate automatically returns to its original position. This allows for molding and demolding to be completed with a single cylinder, reducing manufacturing costs and improving work efficiency as only one cylinder needs to be operated. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a front hood heat insulation pad molding device according to the present invention;

[0024] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0025] Figure 3 This is a front view sectional view of a front hood heat insulation pad molding device according to the present invention.

[0026] Figure 4 for Figure 3 Enlarged view of point B in the middle;

[0027] Figure 5 for Figure 3 Enlarged view of point C in the middle;

[0028] Figure 6 This is a schematic diagram of the spring insert structure of a front engine hood heat insulation pad molding device according to the present invention.

[0029] Reference numerals: 1. Base; 2. Top plate; 3. Cylinder; 4. Press mold; 5. Support plate; 6. Push plate; 7. Mounting plate; 8. Press module; 9. Storage slot; 10. Slide seat; 11. Slide groove; 12. Slider; 13. Insertion hole; 14. Cavity; 15. Lifting plate; 16. Lifting rod; 17. Push rod; 18. Locking block; 19. Connecting block; 20. Inner cavity; 21. Through groove; 22. Insert rod body; 23. Button; 24. Sleeve; 25. Toggle block; 26. Spring body; 27. Inclined surface; 28. Annular locking plate; 29. ​​Strip-shaped limiting groove; 30. Limiting block; 31. First guide rod; 32. First spring; 33. Second spring; 34. Sleeve; 35. Second guide rod. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] A front hood heat insulation pad molding device, such as Figures 1-6 As shown, it includes a base 1, a top plate 2, a cylinder 3, a pressing mold 4, and two support plates 5.

[0032] Both support plates 5 are fixed to the top of the base 1 and are arranged symmetrically on the left and right. The top plate 2 is fixed between the tops of the two support plates 5. The cylinder 3 is installed on the top of the top plate 2. The piston rod of the cylinder 3 passes vertically downward through the top plate 2 and is fixed with the mounting plate 7. The bottom end of the mounting plate 7 is fixed with the pressure module 8.

[0033] The molding die 4 is fixed to the top of the base 1 and corresponds to the molding module 8. Two storage slots 9 are formed in the inner bottom wall of the molding die 4. Push plates 6 are slidably connected in both storage slots 9.

[0034] Each of the two support plates 5 has a vertically extending groove 11 on one of its opposite sides. A slider 12 is slidably connected within each of the two grooves 11. Each of the two sliders 12 has an insertion hole 13 on one of its opposite sides.

[0035] The base 1 has an internal cavity 14. A lifting plate 15, two lifting rods 16, and two push rods 17 are disposed within the cavity 14. The lifting plate 15 moves up and down along the cavity wall of the cavity 14. The two lifting rods 16 correspond to two sliding grooves 11. The top end of the lifting rod 16 is fixedly connected to the bottom end of the slider 12. The bottom end of the lifting rod 16 extends vertically downward and slides into the cavity 14, where it is fixedly connected to the lifting plate 15. The two push rods 17 correspond to two push plates 6. The top end of the push rod 17 is fixedly connected to the bottom end of the push plate 6. The bottom end of the push rod 17 extends vertically downward and slides into the cavity 14, passing through the lifting plate 15 with a clearance fit. A locking block 18 is fixed on the outer wall of the lifting rod 16, located within the cavity 14 and above the lifting plate 15.

[0036] Connecting blocks 19 are fixed on both the left and right sides of the mounting plate 7. The two connecting blocks 19 correspond to the two sliders 12 respectively. An inner cavity 20 is formed inside the connecting block 19. A through groove 21 communicating with the inner cavity 20 is formed at the top of the connecting block 19. A spring rod structure corresponding to the insertion hole 13 is provided inside the inner cavity 20.

[0037] The spring-loaded insert structure includes an insert body 22, a button 23, and a sleeve 24. One end of the button 23 is located inside the inner cavity 20 and is fixed with a lever 25. The other end of the button 23 passes through the through slot 21 and exits the inner cavity 20, located above the connecting block 19. The middle position of the button 23 is rotatably connected between the front and rear walls of the inner cavity 20 via a pin. The button 23 is inclined. The sleeve 24 is fixed inside the inner cavity 20. The insert body 22 is located inside the inner cavity 20 and corresponds to the lower part of the button 23. One end of the insert body 22 is slidably connected to the sleeve 24, and a spring body 26 is fixedly connected between the insert body 22 and the inner bottom wall of the sleeve 24. The other end of the insert body 22 is slidably connected to exit the inner cavity 20 and is inserted into the insertion hole 13, and its bottom end is provided with an inclined surface 27. Two annular retaining plates 28 are fixedly fitted on the outside of the insert body 22. Two annular plates 28 are respectively attached to the left and right sides of the lever 25.

[0038] Furthermore, strip-shaped limiting grooves 29 are provided on both the front and rear sides of the slide groove 11, and a limiting block 30 is fixed on the slider 12 for inserting into the strip-shaped limiting groove 29 and moving up and down along the strip-shaped limiting groove 29. When the slider 12 moves up and down along the slide groove 11, it drives the limiting block 30 to move up and down along the strip-shaped limiting groove 29, thereby improving the stability of the slider 12 when moving up and down.

[0039] Furthermore, a first guide rod 31 is fixedly connected between the upper and lower cavity walls of the cavity 14, and a lifting plate 15 is slidably fitted onto the outside of the first guide rod 31. During its vertical movement, the lifting plate 15 moves up and down along the first guide rod 31, thereby improving the stability of the lifting plate 15 during its vertical movement.

[0040] Furthermore, a first spring 32, sleeved on the outside of the first guide rod 31, is fixedly connected between the top of the lifting plate 15 and the inner top wall of the cavity 14. When the lifting plate 15 moves upward, the first spring 32 is compressed, generating a downward rebound force. When the slider 12 and the connecting block 19 are no longer fixed, the rebound force of the first spring 32, combined with the gravity of the slider 12, the lifting rod 16, and the lifting plate 15, ensures that the slider 12, the lifting rod 16, and the lifting plate 15 can quickly move downward and reset.

[0041] Furthermore, a second spring 33, sleeved on the outside of the push rod 17, is fixedly connected between the top of the locking block 18 and the inner top wall of the cavity 14. When the locking block 18 moves upward, the second spring 33 is compressed, generating a downward rebound force. When the lifting plate 15 moves downward and no longer supports the locking block 18, the rebound force of the second spring 33, combined with the gravity of the push plate 6, the push rod 17, and the locking block 18, ensures that the push plate 6 can quickly move downward and reset into the storage slot 9.

[0042] Furthermore, a sleeve 34 located below the lifting plate 15 is fixed to the inner bottom wall of the cavity 14, and the bottom end of the push rod 17 is slidably inserted into the sleeve 34. The push rod 17 moves up and down along the sleeve 34, which improves the stability of the push rod 17 when it moves up and down.

[0043] Furthermore, a second guide rod 35 is fixed between the base 1 and the top plate 2, and a slide block 10 is fixed on the mounting plate 7 and slidably sleeved on the outside of the second guide rod 35. During the up-and-down movement of the mounting plate 7, the slide block 10 is driven to move up and down along the second guide rod 35, thereby improving the stability of the mounting plate 7 during up-and-down movement.

[0044] Working principle:

[0045] After molding is complete, cylinder 3 is activated. The piston rod of cylinder 3 retracts, causing the mounting plate 7 and the pressing module 8 to move upward. The mounting plate 7 then moves the connecting block 19 upward. At this time, since one end of the insert rod body 22 is located inside the insertion hole 13 and the other end is located inside the inner cavity 20, the connecting block 19 and the slider 12 are fixedly connected by the insert rod. The connecting block 19 can drive the slider 12 to move upward along the slide groove 11. The slider 12 drives the lifting rod 16 to move upward. The lifting rod 16 drives the lifting plate 15 to move upward. The mounting plate 7, the pressing module 8, and the lifting plate 15 move upward a certain distance until the pressing module 8 is completely separated from the molding die 4. At this time, the push plate 6 is not affected by the lifting plate 15.

[0046] Then, mounting plate 7, pressing module 8, and lifting plate 15 continue to move upwards, and lifting plate 15 will contact locking block 18. At this time, lifting plate 15 will drive locking block 18 to move upwards. Locking block 18 drives push rod 17 to move upwards. Push rod 17 drives push plate 6 to move upwards. Push plate 6 pushes open the heat insulation pad, causing the heat insulation pad to gradually detach from the inside of the pressing mold, thus facilitating the demolding of the heat insulation pad.

[0047] When the piston rod of cylinder 3 is fully retracted, the top end of connecting block 19 is in contact with the bottom end of top plate 2. When top plate 2 presses button 23, button 23, being rotatably connected between the front and rear walls of inner cavity 20 via a pin, can rotate within inner cavity 20 and through groove 21. The rotation of button 23 drives the insert rod body 22 into sleeve 24 via toggle block 25 and annular retaining plate 28. One end of insert rod body 22, originally inserted into insertion hole 13, is pulled out of insertion hole 13, while spring body 26 is pressed, creating a rebound force towards sleeve 24. When insert rod body 22 is completely pulled out of insertion hole 13, slider 12 is no longer fixed to connecting block 19. Slider 12, lifting rod 16, and lifting plate 15 automatically move downwards to reset under their own weight and the rebound force of first spring 32. When the lifting plate 15 moves downward, it no longer supports the locking block 18. Therefore, the push plate 6, push rod 17 and locking block 18 also automatically move downward and reset under their own weight and the rebound force of the second spring 33.

[0048] When molding is required again, cylinder 3 is activated, and the piston rod of cylinder 3 extends, causing the mounting plate 7, pressure module 8, and connecting block 19 to move downwards. As connecting block 19 moves downwards, button 23 separates from top plate 2, and the insert rod body 22 pops out and inserts into slide groove 11 under the rebound force of spring body 26. As connecting block 19 continues to move downwards, inclined surface 27 presses against slider 12. The force on inclined surface 27 can be decomposed into a force towards the inner cavity 20, causing insert rod body 22 to retract into the inner cavity 20, with spring body 26 generating a rebound force. When pressure module 8 and molding die 4 are fully engaged for molding, insert rod body 22 corresponds precisely to insertion hole 13. Under the rebound force of spring body 26, one end of insert rod body 22 re-inserts into insertion hole 13, thus fixing connecting block 19 and slider 12 together again.

[0049] In this invention, when the mounting plate 7 and pressure module 8 move downwards for molding, the connecting block 19 automatically connects to the slider 12. After molding is complete, when the mounting plate 7 and pressure module 8 move upwards, the connecting block 19 can drive the lifting plate 15 upwards via the slider 12 and lifting rod 16. The lifting plate 15 can drive the push plate 6 upwards via the locking block 18 and push rod 17, thus automatically moving the push plate 6 upwards for demolding when the mounting plate 7 and pressure module 8 move upwards to reset. After the mounting plate 7 and pressure module 8 move upwards to reset, the connecting block 19 automatically separates from the slider 12, and the push plate 6 automatically resets. Therefore, molding and demolding can be completed with a single cylinder 3, reducing manufacturing costs and requiring only one operator to operate the cylinder 3, thus improving work efficiency.

[0050] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0051] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0052] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0053] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A front hood heat insulation pad molding device, comprising a base (1), a top plate (2), a cylinder (3), a molding die (4), and two support plates (5), wherein the two support plates (5) are fixed to the top of the base (1) and are arranged symmetrically on the left and right, the top plate (2) is fixed between the tops of the two support plates (5), the cylinder (3) is installed on the top of the top plate (2), the piston rod of the cylinder (3) passes vertically downward through the top plate (2) and is fixed with an mounting plate (7), a pressing module (8) is fixed at the bottom end of the mounting plate (7), the molding die (4) is fixed to the top of the base (1) and corresponds to the pressing module (8), and two storage slots (9) are opened in the inner bottom wall of the molding die (4), and push plates (6) are slidably connected in both storage slots (9), characterized in that: Two opposite sides of the support plate (5) are provided with a sliding groove (11) extending longitudinally, two sliding blocks (12) are slidably connected in the sliding grooves (11), two opposite sides of the sliding blocks (12) are provided with a insertion hole (13), the inside of the base (1) is provided with a cavity (14), the cavity (14) is provided with a lifting plate (15), two lifting rods (16) and two push rods (17), the lifting plate (15) moves up and down along the cavity wall of the cavity (14), the two lifting rods (16) correspond to the two sliding grooves (11) respectively, the top end of the lifting rod (16) is fixedly connected with the bottom end of the sliding block (12), the bottom end of the lifting rod (16) extends vertically downward, and is connected with the lifting plate (15) in a sliding manner, the two push rods (17) correspond to the two push plates (6) respectively, the top end of the push rod (17) is fixedly connected with the bottom end of the push plate (6), the bottom end of the push rod (17) extends vertically downward, and is connected with the lifting plate (15) in a sliding manner, the outer side wall of the lifting rod (16) is fixedly connected with a clamping block (18) located in the cavity (14) and corresponding to the upper side of the lifting plate (15), the left and right sides of the mounting plate (7) are fixedly connected with a connecting block (19), the two connecting blocks (19) correspond to the two sliding blocks (12) respectively, the connecting block (19) is provided with an inner cavity (20), the top end of the connecting block (19) is provided with a through groove (21) communicating with the inner cavity (20), the inner cavity (20) is provided with a spring insertion rod structure corresponding to the insertion hole (13), the spring insertion rod structure comprises an insertion rod body (22), a button (23) and a sleeve (24), one end of the button (23) is located in the inner cavity (20) and is fixedly connected with a pushing block (25), the other end of the button (23) passes out of the inner cavity (20) through the through groove (21) and is located above the connecting block (19), the middle position of the button (23) is rotatably connected between the front and rear cavity walls of the inner cavity (20) through a pin shaft, the sleeve (24) is fixedly connected to the inside of the inner cavity (20), the insertion rod body (22) is located in the inner cavity (20) and corresponds to the lower side of the button (23), one end of the insertion rod body (22) is connected with the inner bottom wall of the sleeve (24) in a sliding manner, and a spring body (26) is fixedly connected between the other end of the insertion rod body (22) and the inner bottom wall of the sleeve (24), the other end of the insertion rod body (22) passes out of the inner cavity (20) in a sliding manner and is inserted into the insertion hole (13), and the bottom end of the insertion rod body (22) is provided with an inclined surface (27), the outside of the insertion rod body (22) is fixedly connected with two annular clamping plates (28), and the two annular clamping plates (28) are respectively attached to the left and right sides of the pushing block (25).

2. The molding device for a front hood thermal pad of claim 1, wherein: The front and back groove walls of the chute (11) are provided with strip-shaped limiting grooves (29), and the sliding block (12) is fixed with limiting blocks (30) for being inserted into the strip-shaped limiting grooves (29) and moving up and down along the strip-shaped limiting grooves (29).

3. The molding device for a front hood thermal pad of claim 1, wherein: First guide rods (31) are fixedly connected between the upper and lower cavity walls of the cavity (14), and the lifting plate (15) is sleeved on the outside of the first guide rods (31) in a sliding connection mode.

4. The molding device for a front hood thermal pad of claim 3, wherein: First springs (32) sleeved on the outside of the first guide rods (31) are fixedly connected between the top end of the lifting plate (15) and the inner top wall of the cavity (14).

5. The molding device for a front hood thermal pad of claim 1, wherein: Second springs (33) sleeved on the outside of the push rod (17) are fixedly connected between the top end of the clamping block (18) and the inner top wall of the cavity (14).

6. The molding device for a front hood thermal barrier of claim 1, wherein: A sleeve (34) located below the lifting plate (15) is fixed on the inner bottom wall of the cavity (14), and the bottom end of the push rod (17) penetrates into the sleeve (34) in a sliding connection mode.

7. The molding device for a front hood thermal barrier according to claim 1, wherein: Second guide rods (35) are further fixed between the base (1) and the top plate (2), and sliding seats (10) sleeved on the outside of the second guide rods (35) are fixed on the mounting plate (7).

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