Automobile tail lampshade machining mold easy to demold

By designing a car tail lampshade processing mold with resonance components, using vibration energy to reduce friction, the problem of easy damage during the ejection process in the prior art is solved, and a lossless and complete mold release effect is achieved.

CN119871806AActive Publication Date: 2025-04-25JIANGSU LIVON AUTOMOBILE COMPONENTS TECH
View PDF 9 Cites 0 Cited by

Patent Information

Application Number
CN202510319729.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-18
Publication Date
2025-04-25
Estimated Expiration
2045-03-18

AI Technical Summary

Technical Problem

The existing automotive tail lampshade processing molds may cause damage to the tail lampshade surface during the ejection process, and the integrity of the tail lampshade cannot be guaranteed.

Method used

An automobile tail lampshade processing mold including a lower mold seat, an upper moving mold and a resonant assembly is designed. The rotation shaft drives the gears and resonance components to move, generate vibration energy, reduce the friction between the tail lamp cover and the mold cavity, thereby achieving a lossless mold release process.

Benefits of technology

It effectively reduces the friction between the tail lampshade and the mold cavity, ensures that the tail lampshade is not damaged during the demolding process, and can be completely demolded, improving the demolding effect.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119871806A_ABST
    Figure CN119871806A_ABST
Patent Text Reader

Abstract

The invention discloses an automobile tail lampshade machining mold easy to demold, and particularly relates to the technical field of automobile part machining molds. A rotating shaft rotates to drive a gear and a resonance assembly to move together, the gear drives two centrosymmetric rack plates to get close to each other, and in the process, the resonance assembly is driven by the gear to rotate; the ejector rod is changed into a vertical sliding state from a non-sliding state, and meanwhile, the resonance assembly sequentially acts vibration energy on the side face and the bottom face of an inner cavity of the forming die cavity, so that the contact face between the automobile tail lampshade and the forming die cavity fluctuates before the automobile tail lampshade is ejected out, and the fluctuation reduces the friction force between a product and the forming die cavity; when the bottom face of the forming mold cavity is vibrated, due to continuous rotation of a rotating shaft and sliding of a limiting column in a fold line sliding groove, an ejector rod is driven to vertically slide along the inner wall face of a working cavity, the ejector rod drives a corresponding jacking block to eject out the automobile tail lampshade to be demolded, and therefore the automobile tail lampshade is demolded. The demolding effect is good.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts processing molds, in particular to an automobile taillight cover processing mold which is easy to demould. Background Art

[0002] The car taillight cover is an important component of the rear of the car. It is located outside the car taillight and is usually made of modified plastics with high strength, heat resistance and good weather resistance, and is processed and produced by mold injection molding.

[0003] After searching, the invention patent with publication number CN113427711A discloses a mold for processing automobile taillight cover that is easy to demold. An up and down position adjustment mechanism is set on the lower side of the base plate; it is convenient to demold the lampshade in different directions, and the operation is simple. When the mold air pressure increases, the lampshade can be demolded while cooling the lampshade.

[0004] In the existing solution, the automobile taillight cover is ejected by an ejection mechanism, but there is adhesion between the automobile taillight cover and the mold, and direct ejection may cause surface damage to the automobile taillight cover, and the integrity of the automobile taillight cover cannot be guaranteed. Summary of the invention

[0005] The purpose of the present invention is to provide an easy-to-demold automobile taillight cover processing mold to solve the problem mentioned in the above background technology that direct ejection may cause surface damage to the automobile taillight cover and the integrity of the automobile taillight cover cannot be guaranteed.

[0006] The present invention can be implemented through the following technical scheme: an easy-to-demold automobile taillight cover processing mold, comprising a lower mold base installed on a base, the upper surface of the lower mold base is provided with a molding cavity for producing the automobile taillight cover, and an upper movable mold that cooperates with the molding cavity and is pressed is arranged directly above the lower mold base, the inner cavity of the lower mold base is provided with a working cavity below the molding cavity, the inner cavity bottom surface of the molding cavity is provided with a lifting block that performs lifting movement, the upper surface of the lifting block is flush with the inner cavity bottom surface of the molding cavity, and the interior of the working cavity is provided with a transverse lifting assembly for lifting the lifting block;

[0007] The transverse displacement lifting assembly comprises a rack plate that slides laterally along the inner wall of the working chamber, an abutment portion is fixedly connected to the upper surface of the rack plate, a fold line slide groove is penetrated through the surface of the abutment portion, a limit column is slidably abutted in the fold line slide groove, a push rod that slides vertically along the inner wall of the working chamber is fixedly connected to the end of the limit column, the upper end of the push rod is fixedly connected to the lifting block, and a blocking block is arranged on the lower surface of the push rod;

[0008] The rack plates are provided with two and are centrally symmetrically arranged on the two inner wall surfaces of the working cavity. A gear driven by a servo motor is installed between the two rack plates. A rotating shaft is fixed in the middle of the gear, and a resonance component for demolding the inner cavity of the molding cavity is fixed on the top of the rotating shaft.

[0009] A further technical improvement of the present invention is that: the abutting portion comprises a connecting rod fixedly connected to the top end of the rack plate, the end of the connecting rod is fixedly connected to a straight line segment, and the end of the straight line segment is fixedly connected to an inclined segment inclined upward;

[0010] The folding line slide groove comprises a slide groove 1 which penetrates through the surface of the straight section, and a slide groove 2 which is communicated with the slide groove 1 and is used for limiting the sliding of the limiting column is provided on the surface of the inclined section.

[0011] A further technical improvement of the present invention is that a sliding block 1 is arranged on the outer surface of the rack plate, a sliding rail 1 for the horizontal sliding of the sliding block 1 is arranged on the inner wall surface of the working chamber, a sliding block 2 is installed on the outer wall surface of the push rod and located below the limiting column, and a vertical sliding rail 1 for the limited sliding of the sliding block 2 is arranged on the inner wall surface of the working chamber and located on one side of the sliding rail 1.

[0012] A further technical improvement of the present invention is that the resonance component includes mounting rods fixed on both sides of the top of the rotating shaft, and the inner wall surfaces on both sides of the top of the working chamber are provided with access grooves for the ends of the mounting rods to enter, and the interior of the access grooves is connected to a vibration cavity, and the vibration cavity is close to the side wall surface of the molding cavity.

[0013] A further technical improvement of the present invention is that an electric push rod is fixedly connected to the end of the mounting rod, and a vibration block that vibrates against the inner wall of the vibration cavity and the inner cavity bottom surface of the molding cavity is fixedly connected to the telescopic end of the electric push rod.

[0014] A further technical improvement of the present invention is that a top plate is arranged above the lower die base, four limit rods are installed at the edge of the upper surface of the base, the top ends of the four limit rods are fixed to the top plate, a limit plate pushed by a hydraulic cylinder is installed below the top plate, and the limit plate is slidably connected to the four limit rods.

[0015] A further technical improvement of the present invention is that a telescopic rod is installed on the lower surface of the limit plate and on one side of the limit rod, and the limit plate is arranged in an L shape, a linear cylinder is installed on the L-shaped end face of the limit plate, a transmission plate pushed by the linear cylinder is slidably arranged on the lower surface of the limit plate, a sliding block three is installed on the upper surface of the transmission plate, and a sliding rail two is provided on the lower surface of the limit plate for the sliding cooperation of the sliding block three.

[0016] A further technical improvement of the present invention is that the upper movable mold is installed on the lower surface of the transmission plate, and a punch is provided on the other side of the upper movable mold, a demolding seat is provided on one side of the lower mold seat, a demolding cavity filled with a demolding agent is provided on the upper surface of the demolding seat, and the demolding cavity is located directly below the punch.

[0017] A mold for processing a car taillight cover that is easy to demould, the working method comprises the following steps:

[0018] Step 1: After the automobile taillight cover is formed, the rotating shaft rotates to drive the gear to make the two rack plates slide horizontally on the inner wall surface of the working cavity, and drive the abutment part to move together, and the limit column slides from one end of the sliding groove 1 to the middle position of the sliding groove 1, and the push rod does not slide vertically. In this process, the electric push rod extends to push the vibration block into the inner cavity of the vibration cavity, and the rotating shaft reciprocates clockwise and counterclockwise to drive the two vibration blocks to exert vibration energy on the inner wall surface of the molding cavity;

[0019] Step 2: The rotating shaft continues to rotate, and the limit column slides from the middle of the sliding groove 1 until it reaches the end of the sliding groove 2. During this process, the vibration block rotates away from the access groove to the lower surface of the molding cavity, and the electric push rod reciprocates to generate vibration energy on the lower surface of the molding cavity; at the same time, under the abutment, the sliding of the limit column in the sliding groove 2 generates an upward thrust on the ejector rod, and the ejector block is used to eject the molded product that is shaken out of the molding cavity.

[0020] Step 3: After the product is taken out, the linear cylinder pushes the transmission plate to slide, and the die on the transmission plate is moved to the top of the molding cavity. The die with a layer of release agent attached to the surface is applied to the inner surface of the molding cavity.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The rotation of the rotating shaft drives the gear and the resonance component to move together, and the gear drives the two centrally symmetrical rack plates to approach each other. In this process, the ejector rod changes from a non-sliding state to a vertical sliding state. At the same time, the resonance component sequentially exerts vibration energy on the inner cavity side and bottom surface of the molding cavity, so that the contact surface between the automobile taillight cover and the molding cavity before ejection produces fluctuations. These fluctuations reduce the friction between the product and the molding cavity, so that the automobile taillight cover can be demolded as completely as possible without damaging the surface. When the bottom surface of the molding cavity is vibrated, due to the continued rotation of the rotating shaft, the limit column slides in the broken line slide groove, driving the ejector rod to slide vertically along the inner wall surface of the working cavity, and the ejector rod drives the corresponding lifting block to eject the automobile taillight cover out of the mold, with good demolding effect and ensuring the integrity of demolding;

[0023] 2. The rotating shaft is divided into two motion states. The first use state is clockwise and counterclockwise reciprocating rotation, but the limit column does not slide beyond the middle position of the sliding groove one, and the push rod does not slide vertically at this time; the second use state is that the rotating shaft continues to rotate, and the limit column slides from the middle of the sliding groove one until it reaches the end of the sliding groove two; in the first state, the electric push rod pushes the vibration block into the vibration cavity, and the mounting rod follows the clockwise and counterclockwise reciprocating rotation of the rotating shaft and drives the vibration block to exert vibration energy on the inner wall of the molding cavity; in the second state, the electric push rod retracts, and the top surface height of the vibration block at this time is lower than the inner cavity top surface of the working cavity, and the vibration block is driven by the rotating shaft to enter the working cavity from the access groove. In this process, the electric push rod reciprocates and exerts vibration energy on the inner cavity bottom surface of the molding cavity, causing the contact surface between the automobile taillight cover and the molding cavity to fluctuate;

[0024] 3. The upper movable mold enters the molding cavity to shape the automobile taillight cover. The punch simultaneously moves downward and enters the demolding cavity to cover the outer surface of the punch with a release agent. After taking out the automobile taillight cover, the linear cylinder pushes the transmission plate to slide on the bottom surface of the limit plate, and moves the punch on the transmission plate to the top of the molding cavity. Then, it is pressed down and the punch is used to apply a release agent to the inner surface of the molding cavity to facilitate the subsequent demolding of the automobile taillight cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0026] Figure 1 It is a schematic diagram of the external structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the three-dimensional structure of the transverse lifting assembly of the present invention;

[0028] Figure 3 It is a schematic diagram of the top view installation structure of the gear and two rack plates of the present invention;

[0029] Figure 4 It is a cross-sectional view of the installation of the vibration block of the present invention;

[0030] Figure 5 It is a schematic diagram of the installation structure of the transmission plate and the limit plate of the present invention.

[0031] In the figure: 1. lower die base; 2. working cavity; 3. forming cavity; 4. lifting block; 5. telescopic rod; 6. ejector plate; 7. limit plate; 8. upper movable die; 9. transmission plate; 10. limit rod; 11. gear; 12. rack plate; 13. rotating shaft; 14. sliding block 1; 15. connecting rod; 16. straight section; 17. inclined section; 18. sliding groove 1; 19. sliding groove 2; 20. limit column; 21. ejector rod; 22. blocking block; 23. sliding block 2; 24. slide rail 1; 25. access groove; 26. vibration cavity; 27. mounting rod; 28. electric push rod; 29. ​​vibration block; 30. sliding block 3; 31. demoulding seat; 32. demoulding cavity; 33. punching die; 34. linear cylinder. DETAILED DESCRIPTION

[0032] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0033] See also Figure 1-Figure 5 As shown, the present invention provides an easy-to-demold automobile taillight cover processing mold, including a lower mold base 1 installed on a base, the upper surface of the lower mold base 1 is provided with a molding cavity 3 for producing the automobile taillight cover, and an upper movable mold 8 is provided directly above the lower mold base 1 and is pressed with the molding cavity 3. The inner cavity of the lower mold base 1 is provided with a working cavity 2 below the molding cavity 3, and the bottom surface of the inner cavity of the molding cavity 3 is provided with a lifting block 4 that performs lifting movement, the upper surface of the lifting block 4 is flush with the bottom surface of the inner cavity of the molding cavity 3, and a transverse lifting assembly for lifting the lifting block 4 is installed inside the working cavity 2; the transverse lifting assembly It includes a rack plate 12 that slides laterally along the inner wall of the working chamber 2, an abutment portion is fixedly connected to the upper surface of the rack plate 12, and a folding line slot is penetrated through the surface of the abutment portion. A limiting column 20 slides and abuts in the folding line slot, and a push rod 21 that slides vertically along the inner wall of the working chamber 2 is fixedly connected to the end of the limiting column 20. The upper end of the push rod 21 is fixedly connected to the lifting block 4, and a blocking block 22 is provided on the lower surface of the push rod 21. The rack plate 12 drives the abutment portion to slide laterally together, so that the limiting column 20 slides in the folding line slot, drives the push rod 21 to slide and rise, and drives the lifting block 4 to move upward, thereby ejecting the product from the mold;

[0034] Two rack plates 12 are provided and are centrally symmetrically arranged on the two inner wall surfaces of the working chamber 2. A gear 11 driven by a servo motor is installed between the two rack plates 12. A rotating shaft 13 is fixed in the middle of the gear 11. A resonance component for demolding the inner cavity of the molding cavity 3 is fixed on the top of the rotating shaft 13. Before ejection, the rotating shaft 13 rotates to drive the gear 11 and the resonance component to move together, and the gear 11 drives the two centrally symmetrical rack plates 12 to approach each other. In this process, the ejector rod 21 changes from a non-sliding state to a vertical sliding state, and the resonance component sequentially ejects the molding cavity 3. The vibration energy acts on the inner cavity side and bottom of the mold cavity 3, so that the contact surface between the automobile taillight cover and the molding cavity 3 before ejection produces fluctuations. These fluctuations reduce the friction between the product and the molding cavity 3, so that the automobile taillight cover can be demolded as completely as possible without damaging the surface, and the demolding effect is good. When the bottom surface of the molding cavity 3 is vibrated, due to the continued rotation of the rotating shaft 13, the limiting column 20 slides in the folding line slide groove, driving the ejector rod 21 to slide vertically along the inner wall surface of the working cavity 2, and the ejector rod 21 drives the corresponding lifting block 4 to eject the automobile taillight cover from the mold.

[0035] See also Figure 2 As shown, the abutting portion includes a connecting rod 15 fixedly connected to the top end of the rack plate 12, a straight section 16 is fixedly connected to the end of the connecting rod 15, and an upwardly inclined inclined section 17 is fixedly connected to the end of the straight section 16;

[0036] The broken line slide includes a slide groove 18 penetrating the surface of the straight section 16, and a slide groove 19 is provided on the surface of the inclined section 17, which is connected with the slide groove 18 and is used for limiting the sliding of the limit column 20. The rotating shaft 13 is divided into two motion states. The first use state is clockwise and counterclockwise reciprocating rotation, but the limit column 20 does not slide beyond the middle position of the slide groove 18, and the push rod 21 does not slide vertically at this time; the second use state is that the rotating shaft 13 continues to rotate, and the limit column 20 slides from the middle of the slide groove 18 until it reaches the end of the slide groove 2 19.

[0037] See also Figure 3 As shown, a sliding block 14 is provided on the outer surface of the rack plate 12, a sliding rail 24 for the lateral sliding of the sliding block 14 is provided on the inner wall surface of the working chamber 2, a sliding block 23 is installed on the outer wall surface of the push rod 21 and located below the limiting column 20, and a vertical sliding rail for the limited sliding of the sliding block 23 is provided on the inner wall surface of the working chamber 2 and located on one side of the sliding rail 24.

[0038] See also Figure 4 As shown, the resonance assembly includes mounting rods 27 fixed on both sides of the top of the rotating shaft 13, and both sides of the inner wall surface of the top of the working chamber 2 are provided with access grooves 25 for the ends of the mounting rods 27 to enter, and the interior of the access grooves 25 is connected to a vibration cavity 26, and the vibration cavity 26 is close to the side wall surface of the molding cavity 3;

[0039] An electric push rod 28 is fixedly connected to the end of the mounting rod 27, and a vibration block 29 is fixedly connected to the telescopic end of the electric push rod 28, which vibrates the inner wall of the vibration cavity 26 and the inner cavity bottom surface of the molding cavity 3. When in the first state, the electric push rod 28 pushes the vibration block 29 into the vibration cavity 26, and the mounting rod 27 follows the clockwise and counterclockwise reciprocating rotation of the rotating shaft 13 and drives the vibration block 29 to apply vibration energy to the inner side wall of the molding cavity 3; in the second state, the electric push rod 28 retracts, and the top surface height of the vibration block 29 at this time is lower than the inner cavity top surface of the working cavity 2, and the vibration block 29 is driven by the rotating shaft 13 to enter the working cavity 2 through the access groove 25. In this process, the electric push rod 28 reciprocates to apply vibration energy to the inner cavity bottom surface of the molding cavity 3, so that the contact surface between the automobile taillight cover and the molding cavity 3 fluctuates, thereby reducing the friction between the product and the molding cavity 3.

[0040] See also Figure 1 As shown, a top plate 6 is arranged above the lower die base 1, and four limit rods 10 are installed at the edge of the upper surface of the base. The top ends of the four limit rods 10 are fixed to the top plate 6, and a limit plate 7 pushed by a hydraulic cylinder is installed below the top plate 6. The limit plate 7 is slidably connected to the four limit rods 10, and the limit plate 7 is pushed by the hydraulic cylinder on the upper surface of the top plate 6 to slide along the limit rods 10 and press downward.

[0041] See also Figure 1 and Figure 5 As shown, the lower surface of the limit plate 7 is provided with a telescopic rod 5 on one side of the limit rod 10, and the limit plate 7 is arranged in an L shape, a linear cylinder 34 is installed on the L-shaped end surface of the limit plate 7, a transmission plate 9 pushed by the linear cylinder 34 is slidably provided on the lower surface of the limit plate 7, a sliding block 3 30 is installed on the upper surface of the transmission plate 9, and a slide rail 2 for the sliding block 3 30 to cooperate with the sliding is provided on the lower surface of the limit plate 7;

[0042] The upper movable mold 8 is installed on the lower surface of the transmission plate 9, and a punch 33 is arranged on the other side of the upper movable mold 8, and a demolding seat 31 is arranged on one side of the lower mold seat 1. The upper surface of the demolding seat 31 is provided with a demolding cavity 32 filled with a demolding agent, and the demolding cavity 32 is located directly below the punch 33. When producing a car taillight cover, the upper movable mold 8 enters the molding cavity 3 to shape the car taillight cover, and the punch 33 moves downward synchronously and enters the demolding cavity 32 to cover the outer surface of the punch 33 with the demolding agent. Then, the upper movable mold 8 and the punch 33 are opened upward to wait for the product to be taken out. After taking out, the transmission plate 9 is pushed by the linear cylinder 34 to slide on the bottom surface of the limit plate 7, and the punch 33 on the transmission plate 9 is moved to directly above the molding cavity 3, and then pressed down, and the punch 33 is used to apply the demolding agent to the inner surface of the molding cavity 3, so as to facilitate the demolding of the car taillight cover.

[0043] A working method for a mold for processing an automobile taillight cover that is easy to demould, the working method comprising the following steps:

[0044] Step 1: After the automobile taillight cover is formed, the rotating shaft 13 rotates and drives the gear 11 to make the two rack plates 12 slide horizontally on the inner wall surface of the working cavity 2, and drives the abutment part to move together, and the limit column 20 slides from one end of the sliding groove 18 to the middle position of the sliding groove 18, and the push rod 21 does not slide vertically. In this process, the electric push rod 28 extends to push the vibration block 29 into the inner cavity of the vibration cavity 26, and the rotating shaft 13 reciprocates clockwise and counterclockwise, driving the two vibration blocks 29 to exert vibration energy on the inner wall surface of the molding cavity 3;

[0045] Step 2, the rotating shaft 13 continues to rotate, and the limiting column 20 slides from the middle of the sliding groove 18 until it reaches the end of the sliding groove 2 19. In this process, the vibration block 29 rotates away from the access groove 25 to the lower surface of the molding cavity 3, and the electric push rod 28 reciprocates to generate vibration energy on the lower surface of the molding cavity 3; at the same time, under the abutment, the sliding of the limiting column 20 in the sliding groove 2 19 generates an upward thrust to the ejector rod 21, and the ejector block 4 is used to eject the molded product that is shaken out of the molding cavity 3.

[0046] Step 3: After the product is taken out, the linear cylinder 34 pushes the transmission plate 9 to slide, and the die 33 on the transmission plate 9 is moved to just above the molding cavity 3, and the die 33 with a layer of release agent attached to the surface is applied to the inner surface of the molding cavity 3.

[0047] When the present invention is in use, the rotation of the rotating shaft 13 drives the gear 11 and the resonance component to move together, and the gear 11 drives the two centrally symmetrical rack plates 12 to approach each other. In this process, the ejector rod 21 changes from a non-sliding state to a vertical sliding state, and at the same time, the resonance component sequentially exerts vibration energy on the inner cavity side and bottom surface of the molding cavity 3, so that the contact surface between the automobile taillight cover and the molding cavity 3 before ejection produces fluctuations. These fluctuations reduce the friction between the product and the molding cavity 3, so that the automobile taillight cover is demolded as completely as possible without damaging the surface. When the bottom surface of the molding cavity 3 is vibrated, due to the continued rotation of the rotating shaft 13, the limiting column 20 slides in the broken line slide groove, driving the ejector rod 21 to slide vertically along the inner wall surface of the working cavity 2, and the ejector rod 21 drives the corresponding lifting block 4 to eject the automobile taillight cover, and the demolding effect is good;

[0048] The rotating shaft 13 has two motion states. The first use state is clockwise and counterclockwise reciprocating rotation, but the limit column 20 does not slide beyond the middle position of the sliding groove 18, and the top rod 21 does not slide vertically at this time; the second use state is that the rotating shaft 13 continues to rotate, and the limit column 20 slides from the middle of the sliding groove 18 until it reaches the end of the sliding groove 2 19; in the first state, the electric push rod 28 pushes the vibration block 29 into the vibration chamber 26, and the mounting rod 27 follows the rotating shaft 13 The electric push rod 28 reciprocates clockwise and counterclockwise and drives the vibration block 29 to exert vibration energy on the inner wall of the molding cavity 3; in the second state, the electric push rod 28 retracts, and the top surface height of the vibration block 29 is lower than the inner cavity top surface of the working cavity 2. The vibration block 29 is driven by the rotating shaft 13 to enter the working cavity 2 through the access groove 25. In this process, the electric push rod 28 reciprocates to exert vibration energy on the inner cavity bottom surface of the molding cavity 3, so that the contact surface between the automobile taillight cover and the molding cavity 3 fluctuates;

[0049] The upper movable mold 8 enters the molding cavity 3 to shape the automobile taillight cover, and the punch 33 moves downward synchronously and enters the demoulding cavity 32, and the release agent is covered on the outer surface of the punch 33. After the automobile taillight cover is taken out, the linear cylinder 34 pushes the transmission plate 9 to slide on the bottom surface of the limit plate 7, and the punch 33 on the transmission plate 9 is moved to the top of the molding cavity 3, and then pressed down, and the punch 33 is used to apply the release agent to the inner surface of the molding cavity 3, so as to facilitate the subsequent demoulding of the automobile taillight cover.

[0050] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An easy-to-demold automobile taillight cover processing mold, comprising a lower mold base (1) mounted on a base, the upper surface of the lower mold base (1) is provided with a molding cavity (3) for producing the automobile taillight cover, and an upper movable mold (8) is provided directly above the lower mold base (1) and is pressed with the molding cavity (3), characterized in that: The inner cavity of the lower die base (1) is provided with a working cavity (2) located below the molding cavity (3); the inner cavity bottom surface of the molding cavity (3) is provided with a lifting block (4) for lifting movement; the upper surface of the lifting block (4) is flush with the inner cavity bottom surface of the molding cavity (3); and the interior of the working cavity (2) is provided with a transverse lifting assembly for lifting the lifting block (4); The transverse displacement lifting assembly comprises a rack plate (12) which slides transversely along the inner wall of the working chamber (2); an abutment portion is fixedly connected to the upper surface of the rack plate (12); a folding line groove is provided through the surface of the abutment portion; a limit column (20) is slidably abutted in the folding line groove; an end of the limit column (20) is fixedly connected to a push rod (21) which slides vertically along the inner wall of the working chamber (2); the upper end of the push rod (21) is fixedly connected to the lifting block (4), and a blocking block (22) is provided on the lower surface of the push rod (21); Two rack plates (12) are provided and are centrally symmetrically arranged on two inner wall surfaces of the working cavity (2); a gear (11) driven by a servo motor is installed between the two rack plates (12); a rotating shaft (13) is fixed in the middle of the gear (11); and a resonance component for demoulding the inner cavity of the molding cavity (3) is fixed at the top end of the rotating shaft (13).

2. The easy-to-release automobile taillight cover processing mold according to claim 1, characterized in that: The abutment portion comprises a connecting rod (15) fixedly connected to the top end of the rack plate (12); a straight section (16) is fixedly connected to the end of the connecting rod (15); and an upwardly inclined inclined section (17) is fixedly connected to the end of the straight section (16); The folding line slide groove comprises a first slide groove (18) penetrating the surface of the straight section (16), and a second slide groove (19) communicating with the first slide groove (18) and used for limiting the sliding of the limiting column (20) is provided on the surface of the inclined section (17).

3. The easy-to-release automobile taillight cover processing mold according to claim 1, characterized in that: The outer surface of the rack plate (12) is provided with a sliding block (14), the inner wall surface of the working chamber (2) is provided with a sliding rail (24) for the sliding block (14) to slide horizontally, the outer wall surface of the push rod (21) is provided with a sliding block (23) installed below the limiting column (20), and the inner wall surface of the working chamber (2) is provided with a vertical sliding rail (14) for the sliding block (23) to slide in a limited manner.

4. The easy-to-release automobile taillight cover processing mold according to claim 1, characterized in that: The resonance assembly comprises mounting rods (27) fixed on both sides of the top of the rotating shaft (13); both sides of the inner wall surface of the top of the working cavity (2) are provided with access grooves (25) for the ends of the mounting rods (27) to enter; the interior of the access grooves (25) is connected to a vibration cavity (26); the vibration cavity (26) is close to the side wall surface of the molding cavity (3).

5. The easy-to-release automobile taillight cover processing mold according to claim 4, characterized in that: An electric push rod (28) is fixedly connected to the end of the mounting rod (27), and a vibrating block (29) is fixedly connected to the telescopic end of the electric push rod (28) for vibrating the inner wall of the vibration cavity (26) and the inner cavity bottom surface of the molding cavity (3).

6. The easy-to-release automobile taillight cover processing mold according to claim 1, characterized in that: A top plate (6) is arranged above the lower die base (1), and four limit rods (10) are installed at the edge of the upper surface of the base, and the top ends of the four limit rods (10) are fixed to the top plate (6). A limit plate (7) pushed by a hydraulic cylinder is installed below the top plate (6), and the limit plate (7) is slidably connected to the four limit rods (10).

7. The easy-to-release automobile taillight cover processing mold according to claim 6, characterized in that: A telescopic rod (5) is installed on the lower surface of the limit plate (7) and located on one side of the limit rod (10), and the limit plate (7) is arranged in an L shape. A linear cylinder (34) is installed on the L-shaped end face of the limit plate (7). A transmission plate (9) driven by the linear cylinder (34) is slidably arranged on the lower surface of the limit plate (7). A sliding block three (30) is installed on the upper surface of the transmission plate (9). A sliding rail two for the sliding block three (30) to cooperate with the sliding block three (30) is provided on the lower surface of the limit plate (7).

8. The easy-to-release automobile taillight cover processing mold according to claim 1, characterized in that: The upper movable die (8) is mounted on the lower surface of the transmission plate (9), and a punching die (33) is arranged on the other side of the upper movable die (8). A demolding seat (31) is arranged on one side of the lower die seat (1), and a demolding cavity (32) filled with a demolding agent is arranged on the upper surface of the demolding seat (31), and the demolding cavity (32) is located directly below the punching die (33).

9. An easily demouldable automobile taillight cover processing mold according to any one of claims 1 to 8, characterized in that: Also included is a working method comprising the following steps: Step 1: After the automobile taillight cover is formed, the rotating shaft (13) rotates to drive the gear (11) so that the two rack plates (12) slide horizontally on the inner wall surface of the working cavity (2), and drives the abutment part to move together, and the limit column (20) slides from one end of the sliding groove (18) to the middle position of the sliding groove (18), and the push rod (21) does not slide vertically. During this process, the electric push rod (28) extends to push the vibration block (29) into the inner cavity of the vibration cavity (26), and the two vibration blocks (29) are driven to exert vibration energy on the inner wall surface of the molding cavity (3) through the reciprocating clockwise and counterclockwise rotation of the rotating shaft (13); Step 2, the rotating shaft (13) continues to rotate, and the limiting column (20) slides from the middle of the sliding groove (18) until it reaches the end of the sliding groove (19). During this process, the vibration block (29) rotates away from the access groove (25) to the lower surface of the molding cavity (3), and the electric push rod (28) reciprocates to generate vibration energy on the lower surface of the molding cavity (3); at the same time, under the abutment, the sliding of the limiting column (20) in the sliding groove (19) generates an upward thrust on the push rod (21), and the lifting block (4) is used to eject the molded product that is shaken out of the molding cavity (3) out of the mold; Step 3: After the product is taken out, the linear cylinder (34) pushes the transmission plate (9) to slide, and the die (33) on the transmission plate (9) is moved to the top of the molding cavity (3), and the die (33) with a layer of release agent attached to the surface is applied to the inner surface of the molding cavity (3).

Citation Information

Patent Citations

  • Conveniently demolded automobile tail light shade machining mold

    CN113427711A

  • Glue-injection-type manufacturing device for rubber coatings of fiber gloves

    CN102672884A

  • Automatic shearing gate machining structure utilizing power of injection molding machine

    CN108407195A

  • Injection mold for automobile part production

    CN117464932A

  • Steel injection mold convenient to demold

    CN209755970U