Large automobile electroplating decorative strip mold straight top plus inclined top secondary ejection mechanism

Abstract

The utility model provides a kind of straight top and bevel top secondary ejection mechanism of large-sized automobile electroplating decorative strip mould, belong to mould technical field.It includes lower mould plate, the lower mould plate is provided with decorative strip forming part, the lower mould plate downside is provided with the straight bevel top composite secondary ejection mechanism corresponding with decorative strip forming part, the straight bevel top composite secondary ejection mechanism includes ejection plate and the gas top type bevel top component and straight top component connected with ejection plate.By straight bevel top composite secondary ejection mechanism in the gas top type bevel top component can be in before ejection to the junction of product and lower mould plate high-pressure gas makes decorative strip part and lower mould plate separate, again by ejection plate drive gas top type bevel top component and straight top component to decorative strip exert oblique and vertical thrust to complete secondary ejection, this design dispersion ejection force, avoid single ejection stress concentration, effectively solve the problem of decorative strip damage when ejection, improve product pass rate.

Description

Technical Field

[0001] This utility model belongs to the field of mold technology and relates to a direct top plus inclined top secondary ejection mechanism for a large automotive electroplating decorative strip mold. Background Technology

[0002] Automotive electroplated decorative strips are generally formed by injection molding. In the existing technology, the ejection mechanism of the automotive electroplated decorative strip mold is prone to damaging the decorative strip when ejecting the electroplated decorative strip product.

[0003] For example, a Chinese patent discloses a molding die for forming automotive decorative trim strips [application number: 202022843364.X], which includes a lower stamping die, on which an automotive decorative trim strip core is installed. The automotive decorative trim strip core has a lower model surface for forming the automotive decorative trim strip, and the lower model surface has a decorative corner portion; an upper stamping die, which has an upper model surface corresponding to the lower model surface, and the upper model surface and the lower model surface form the automotive decorative trim strip; a limiting block, which is set as multiple limiting blocks and surrounds the automotive decorative trim strip core; and a pressure block, which is fixed to the lower stamping die and surrounds the decorative corner portion to stop the automotive decorative trim strip. Utility Model Content

[0004] The purpose of this utility model is to address the above-mentioned problems by providing a direct-top and inclined-top secondary ejection mechanism for a large automotive electroplating decorative strip mold.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A double ejection mechanism for a large automotive electroplating decorative strip mold, comprising a lower template, on which a decorative strip forming part is provided, and on the lower side of the lower template, a double ejection mechanism with a straight and angled top, corresponding to the decorative strip forming part, is provided. The double ejection mechanism with a straight and angled top includes an ejection plate and an air-pumped angled top assembly and a straight top assembly connected to the ejection plate. Both the air-pumped angled top assembly and the straight top assembly are arranged along the length direction of the decorative strip forming part.

[0007] In the above-mentioned large automotive electroplating decorative strip mold with a straight top and a slanted top secondary ejection mechanism, the air-jacking slanted top assembly includes a split slanted top block disposed in the middle of the decorative strip forming part. The split slanted top block is connected to the ejection plate through a plurality of first slanted top rods. The split slanted top block is provided with an exhaust flow channel structure, and the first slanted top rod is provided with a gas channel connected to the exhaust flow channel structure.

[0008] In the above-mentioned large automotive electroplating decorative strip mold's direct top plus inclined top secondary ejection mechanism, the split inclined top block is formed by assembling several first inclined top blocks arranged along the length direction of the decorative strip forming part, and each first inclined top block has two first inclined top rods connected to its bottom.

[0009] In the above-mentioned large automotive electroplating decorative strip mold with a straight top and a sloping top secondary ejection mechanism, the exhaust channel structure includes several exhaust channels set in the split sloping top blocks. Each of the exhaust channels is independently set in several first sloping top blocks. The bottom of the first sloping top block is provided with a connecting groove. The top of the first sloping top rod is inserted into the connecting groove, and the gas channel in the first sloping top rod is connected to the exhaust channel in the first sloping top block. The exhaust port of the exhaust channel is set on the side wall of the first sloping top block.

[0010] In the above-mentioned large automotive electroplating decorative strip mold with a straight top and a sloping top secondary ejection mechanism, a connecting channel is provided on the adjacent side walls of the two adjacent first sloping top blocks, and the exhaust channels in the two first sloping top blocks are connected through the connecting channel.

[0011] In the above-mentioned large automotive electroplating decorative strip mold with a straight top and an inclined top secondary ejection mechanism, the straight top assembly includes several first straight top blocks arranged along the length direction of the decorative strip forming part and connected to the edge of the decorative strip forming part. The first straight top blocks are connected to the ejection plate through a first straight top rod.

[0012] In the above-mentioned large automotive electroplating decorative strip mold's straight-top plus inclined-top secondary ejection mechanism, the split-type inclined-top block is symmetrically provided with a second inclined-top block and a second straight-top block on both sides. The second inclined-top block and the second straight-top block are connected to the two side edges of the decorative strip forming part. The second inclined-top block and the second straight-top block are respectively connected to the ejection plate through a second inclined-top rod and a second straight-top rod. The second straight-top block is located between the first inclined-top block and the second inclined-top block.

[0013] In the above-mentioned large automotive electroplating decorative strip mold with a straight top and a slanted top secondary ejection mechanism, the first slanted top rod and the second slanted top rod are connected to the ejection plate through a sliding transition structure. The lower side of the lower template is also fixedly connected with several slanted top rod guide plates corresponding to the first slanted top rod and the second slanted top rod. The first slanted top rod and the second slanted top rod both pass through the slanted top rod guide plates, and a steering ball is provided at the connection between the first slanted top rod and the second slanted top rod and the slanted top rod guide plate.

[0014] In the above-mentioned large automotive electroplating decorative strip mold with a straight top and a slanted top secondary ejection mechanism, a sealing ring is provided at the connection between the first slanted top rod and the connecting groove, and a sealing ring mounting groove is provided on the part of the first slanted top rod inserted into the connecting groove.

[0015] In the above-mentioned large automotive electroplating decorative strip mold with a straight top and a slanted top secondary ejection mechanism, the side of the portion of the first slanted top rod inserted into the connecting groove is provided with a positioning groove, and a positioning pin that is inserted into the positioning groove is horizontally inserted on the first slanted top block.

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] 1. The air-pumped inclined ejector component in the straight-sloping-top composite secondary ejection mechanism can pass high-pressure gas through the connection between the product and the lower template before ejection, causing the decorative strip to separate from the lower template. Then, the ejection plate drives the air-pumped inclined ejector component and the straight ejector component to apply oblique and vertical thrust to the decorative strip to complete the secondary ejection. This design disperses the ejection force, avoids the concentration of force during single ejection, effectively solves the problem of damage to the decorative strip during ejection, and improves the product qualification rate.

[0018] 2. The air-cushioned sloping jack assembly adopts a split sloping jack block in conjunction with the first sloping jack rod. The exhaust channel inside the split sloping jack block is connected to the gas channel of the sloping jack rod, which can accurately introduce high-pressure gas. This structure allows the gas to act on the middle of the decorative strip first to achieve partial detachment. When ejected, the force of the sloping jack block is evenly distributed, avoiding excessive force on the middle part and damage. At the same time, the exhaust channel ensures smooth gas flow and enhances the pretreatment effect of the air-cushion.

[0019] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0020] Figure 1 This is a structural diagram of the lower template;

[0021] Figure 2 This is a partial structural diagram of the lower template;

[0022] Figure 3 This is a schematic diagram of a straight-angled composite secondary ejection mechanism;

[0023] Figure 4 This is a structural schematic diagram of an air-cushioned inclined roof assembly;

[0024] Figure 5 This is a partial structural diagram of an air-cushioned inclined roof assembly. Detailed Implementation

[0025] like Figures 1-5 As shown, a double ejection mechanism for a large automotive electroplating decorative strip mold, comprising a lower template 1, on which a decorative strip forming part 2 is provided, and a double ejection mechanism 3, corresponding to the decorative strip forming part 2, is provided on the lower side of the lower template 1. The double ejection mechanism 3 includes an ejection plate 4 and an air-pumped inclined ejector assembly 5 and a straight ejector assembly 6 connected to the ejection plate 4. Both the air-pumped inclined ejector assembly 5 and the straight ejector assembly 6 are arranged along the length direction of the decorative strip forming part 2.

[0026] In this invention, the air-pumped inclined ejector component in the straight-inclined-top composite secondary ejection mechanism can pass high-pressure gas through the connection between the product and the lower template before ejection, causing the decorative strip to detach from the lower template. Then, the ejection plate drives the air-pumped inclined ejector component and the straight ejector component to apply oblique and vertical thrust to the decorative strip to complete the secondary ejection. This design disperses the ejection force, avoids the concentration of force during a single ejection, effectively solves the problem of damage to the decorative strip during ejection, and improves the product qualification rate.

[0027] Specifically, the air-cushioned angled top assembly 5 includes a split-type angled top block 7 disposed in the middle of the decorative strip forming section 2. The split-type angled top block 7 is connected to the ejector plate 4 through several first angled top rods 8. The split-type angled top block 7 is provided with an exhaust channel structure, and the first angled top rods 8 are provided with gas channels 9 connected to the exhaust channel structure. The air-cushioned angled top assembly uses a split-type angled top block in conjunction with the first angled top rods. The exhaust channel in the split-type angled top block is connected to the gas channel of the angled top rod, which can accurately introduce high-pressure gas. This structure allows the gas to act on the middle of the decorative strip first to achieve local detachment. When ejected, the force of the angled top block is evenly distributed, avoiding excessive force on the middle part and damage. At the same time, the exhaust channel ensures smooth gas flow and enhances the pre-treatment effect of the air-cushion.

[0028] Specifically, the split-type inclined ejector block 7 is formed by assembling several first inclined ejector blocks 10 arranged along the length direction of the decorative strip forming part 2. Each first inclined ejector block 10 is connected to two first inclined ejector rods 8 at its bottom. The split-type inclined ejector block is composed of several first inclined ejector blocks, and each first inclined ejector block is connected to two first inclined ejector rods at its bottom, so that the ejection force and gas pressure are evenly distributed along the length direction of the decorative strip. This design solves the problem of force concentration in the integral inclined ejector block, ensures that each section of the decorative strip achieves gas pre-detachment and ejection simultaneously, and reduces damage caused by uneven force.

[0029] Specifically, the exhaust channel structure includes several exhaust channels 11 disposed within the split-type inclined ejector blocks 7. Each exhaust channel 11 is independently disposed within several first inclined ejector blocks 10. The bottom of each first inclined ejector block 10 has a connecting groove. The top of each first inclined ejector rod 8 is inserted into the connecting groove, and the gas channel 9 within the first inclined ejector rod 8 is connected to the exhaust channel 11 within the first inclined ejector block 10. The exhaust port of each exhaust channel 11 is located on the side wall of the first inclined ejector block 10. The exhaust channels are independently disposed within each first inclined ejector block, connected to the gas channel of the inclined ejector rod via the connecting groove, and the exhaust port is located on the side wall. This allows high-pressure gas to precisely act on the contact area between the decorative strip and the mold. This structure ensures uniform gas penetration to achieve localized separation. Simultaneously, each inclined ejector block operates independently, improving the stability of the ejection process and reducing the risk of damage to the decorative strip.

[0030] Specifically, a connecting channel 12 is provided on the adjacent sidewalls of the two adjacent first inclined top blocks 10, and the exhaust channels 11 in the two first inclined top blocks 10 are connected through the connecting channel 12. The adjacent first inclined top blocks are connected by the connecting channel to form an overall gas flow system, which improves the uniformity of gas pressure. This design solves the problem of pressure difference that may exist in independent channels, ensures that each segment of the decorative strip completes gas pre-detachment synchronously, enhances ejection coordination, and further reduces the probability of damage.

[0031] Specifically, the direct-push assembly 6 includes several first direct-push blocks 13 arranged along the length of the decorative strip forming part 2 and connected to the edge of the decorative strip forming part 2. The first direct-push blocks 13 are connected to the ejection plate 4 via first direct-push rods 14. The direct-push assembly acts on the edge of the decorative strip through several first direct-push blocks, forming a secondary ejection synergy with the gas-push type inclined-push assembly. This design allows the edge and the center to be ejected simultaneously after the gas is pre-detached, avoiding deformation or damage to the edge due to insufficient ejection force, achieving balanced overall detachment of the decorative strip, and improving product integrity.

[0032] Specifically, the split-type inclined ejector block 7 is symmetrically equipped with a second inclined ejector block 15 and a second straight ejector block 16 on both sides. The second inclined ejector block 15 and the second straight ejector block 16 are connected to the two side edges of the decorative strip forming part 2. The second inclined ejector block 15 and the second straight ejector block 16 are respectively connected to the ejector plate 4 through a second inclined ejector rod 17 and a second straight ejector rod 18. The second straight ejector block 16 is located between the first inclined ejector block 10 and the second inclined ejector block 15. The split-type inclined ejector block is symmetrically equipped with a second inclined ejector block and a second straight ejector block on both sides, which act on the two side edges of the decorative strip and form an all-round ejection system with other components. This structure solves the problem of insufficient ejection force on both side edges, so that the gas pre-detachment and ejection force cover the entire decorative strip, preventing damage to the sides due to improper force.

[0033] Specifically, the first inclined push rod 8 and the second inclined push rod 17 are connected to the ejector plate 4 via a sliding transition structure 19. Several inclined push rod guide plates 20, corresponding to the first and second inclined push rods 8 and 17, are also fixedly connected to the lower side of the lower template 1. Both the first and second inclined push rods 8 and 17 pass through the inclined push rod guide plates 20, and a steering ball 21 is provided at the connection point between the first and second inclined push rods 8 and 17 and the inclined push rod guide plate 20. The inclined push rods are connected to the ejector plate via the sliding transition structure. Combined with the inclined push rod guide plates and steering balls, the movement of the inclined push rods is precise and stable. This design ensures accurate ejection trajectory after gas pre-detachment, avoids scratching of the decorative strip due to inclined push rod deviation, improves the consistency and reliability of the ejection action, and reduces damage.

[0034] The sliding transition structure 19 includes a transition base fixed on the top plate 4 and having a T-shaped limiting groove. A limiting slider is slidably connected in the limiting groove. The bottom of the first inclined push rod 8 and the second inclined push rod are fixedly connected to a transition block that is rotatably connected to the limiting slider.

[0035] Specifically, a sealing ring is provided at the connection between the first inclined push rod 8 and the connecting groove, and a sealing ring mounting groove 22 is provided on the part of the first inclined push rod 8 that is inserted into the connecting groove. The sealing ring at the connection between the first inclined push rod and the connecting groove enhances the sealing of the gas channel. This design prevents gas leakage from affecting the pre-detachment effect, ensures that the high-pressure gas effectively acts on the decorative strip, and prevents impurities from entering and affecting the ejection accuracy, thereby indirectly ensuring the stability of the ejection process and reducing damage to the decorative strip.

[0036] Specifically, the first inclined push rod 8 has a positioning groove 23 on its side where it is inserted into the connecting groove, and a positioning pin 24 is horizontally inserted into the positioning groove 23 on the first inclined push block 10. The first inclined push rod achieves precise positioning with the inclined push block through the positioning groove and positioning pin, ensuring a stable connection and accurate position. This design avoids gas leakage and push-out force deviation caused by relative displacement between the two during push-out, ensuring gas pre-detachment and effective transmission of push-out force, and further reducing damage to the decorative strip during push-out.

[0037] The working principle of this utility model is as follows: the air-pumped inclined component in the straight-inclined-top composite secondary ejection mechanism can pass high-pressure gas to the connection between the product and the lower template before ejection, so that the decorative strip part is separated from the lower template. Then, the ejection plate drives the air-pumped inclined component and the straight component to apply oblique and vertical thrust to the decorative strip to complete the secondary ejection. This design disperses the ejection force, avoids the concentration of force during single ejection, effectively solves the problem of damage to the decorative strip during ejection, and improves the product qualification rate.

[0038] The air-cushioned angled jack assembly uses a split-type angled jack block with a first angled jack rod. The exhaust channel inside the split-type angled jack block is connected to the gas channel of the angled jack rod, allowing for precise introduction of high-pressure gas. This structure allows the gas to act on the middle of the decorative strip first, achieving partial detachment. During ejection, the force of the angled jack block is evenly distributed, avoiding excessive stress on the middle section and preventing damage. At the same time, the exhaust channel ensures smooth gas flow and enhances the pre-treatment effect of the air-cushion. The split-type angled jack block is assembled from several first angled jack blocks, with two first angled jack rods connected to the bottom of each first angled jack block. This ensures that the ejection force and gas pressure are evenly distributed along the length of the decorative strip. This design solves the problem of force concentration in the integral angled jack block, ensuring that each section of the decorative strip achieves simultaneous gas pre-detachment and ejection. To reduce damage caused by uneven stress, the exhaust channels are independently set in each of the first inclined ejector blocks and connected to the gas channel of the inclined ejector rod through connecting grooves. The exhaust ports are located on the side walls, allowing high-pressure gas to act precisely on the contact area between the decorative strip and the mold. This structure ensures uniform gas penetration to achieve local detachment. At the same time, each inclined ejector block operates independently, improving the stability of the ejection process and reducing the risk of damage to the decorative strip. Adjacent first inclined ejector blocks are connected to the exhaust channels through connecting channels to form an overall gas flow system, improving the uniformity of gas pressure. This design solves the problem of pressure differences that may exist in independent channels, ensuring that each section of the decorative strip completes gas pre-detachment synchronously, enhancing ejection coordination, and further reducing the probability of damage.

[0039] The direct-push assembly acts on the edge of the decorative strip through several first-stage direct-push blocks, forming a secondary ejection synergy with the gas-lift angled-push assembly. This design ensures that the edge and center are ejected simultaneously after gas pre-detachment, preventing deformation or damage to the edges due to insufficient ejection force. This achieves balanced detachment of the decorative strip as a whole, improving product integrity. The split-type angled-push block has symmetrically arranged second-stage angled-push blocks and second-stage direct-push blocks on both sides, acting on the edges of the decorative strip. Together with other components, it forms a comprehensive ejection system. This structure solves the problem of insufficient ejection force on the edges, ensuring that the gas pre-detachment and ejection force cover the entire decorative strip, preventing uneven force on the sides. In the event of damage, a sealing ring is installed at the connection between the first inclined ejector rod and the connecting groove to enhance the sealing of the gas channel. This design prevents gas leakage from affecting the pre-detachment effect, ensures that high-pressure gas effectively acts on the decorative strip, and prevents impurities from entering and affecting the ejection accuracy, thereby indirectly ensuring the stability of the ejection process and reducing damage to the decorative strip. The first inclined ejector rod achieves precise positioning with the inclined ejector block through the cooperation of the positioning groove and the positioning pin, ensuring a stable connection and accurate position. This design avoids gas leakage and ejection force deviation caused by the relative displacement of the two during ejection, ensuring effective transmission of gas pre-detachment and ejection force, and further reducing damage to the decorative strip during ejection.

[0040] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A direct-top and angled-top secondary ejection mechanism for a large automotive electroplating decorative strip mold, comprising a lower template (1), wherein a decorative strip forming part (2) is provided on the lower template (1), characterized in that, The lower template (1) is provided with a straight and inclined top composite secondary ejection mechanism (3) corresponding to the decorative strip forming part (2). The straight and inclined top composite secondary ejection mechanism (3) includes an ejection plate (4) and an air-cushioned inclined top assembly (5) and a straight top assembly (6) connected to the ejection plate (4). The air-cushioned inclined top assembly (5) and the straight top assembly (6) are both arranged along the length direction of the decorative strip forming part (2).

2. The direct-ejector plus inclined-ejector secondary ejection mechanism of the large automotive electroplating decorative strip mold according to claim 1, characterized in that, The gas-top type inclined top assembly (5) includes a split inclined top block (7) disposed in the middle of the decorative strip forming part (2). The split inclined top block (7) is connected to the ejector plate (4) through a plurality of first inclined top rods (8). The split inclined top block (7) is provided with an exhaust flow channel structure. The first inclined top rods (8) are provided with a gas channel (9) connected to the exhaust flow channel structure.

3. The direct-ejector plus inclined-ejector secondary ejection mechanism of the large automotive electroplating decorative strip mold according to claim 2, characterized in that, The split-type inclined top block (7) is formed by assembling several first inclined top blocks (10) arranged along the length direction of the decorative strip forming part (2), and each first inclined top block (10) is connected to two first inclined top rods (8) at the bottom.

4. The direct-ejector plus inclined-ejector secondary ejection mechanism of the large automotive electroplating decorative strip mold according to claim 3, characterized in that, The exhaust channel structure includes several exhaust channels (11) set in the split inclined top block (7). The several exhaust channels (11) are independently set in several first inclined top blocks (10). The bottom of the first inclined top block (10) is provided with a connecting groove. The top of the first inclined top rod (8) is inserted into the connecting groove and the gas channel (9) in the first inclined top rod (8) is connected to the exhaust channel (11) in the first inclined top block (10). The exhaust port of the exhaust channel (11) is set on the side wall of the first inclined top block (10).

5. The direct-ejector plus inclined-ejector secondary ejection mechanism of the large automotive electroplating decorative strip mold according to claim 4, characterized in that, A connecting channel (12) is provided on the adjacent sidewalls of the two adjacent first inclined top blocks (10), and the exhaust channels (11) in the two first inclined top blocks (10) are connected through the connecting channel (12).

6. The direct-ejector plus inclined-ejector secondary ejection mechanism of the large automotive electroplating decorative strip mold according to claim 5, characterized in that, The straight-top assembly (6) includes several first straight-top blocks (13) arranged along the length direction of the decorative strip forming part (2) and connected to the edge of the decorative strip forming part (2). The first straight-top blocks (13) are connected to the ejector plate (4) through the first straight-top rod (14).

7. The direct-ejector plus inclined-ejector secondary ejection mechanism for a large automotive electroplating decorative strip mold according to claim 6, characterized in that, The split-type inclined top block (7) is also symmetrically provided with a second inclined top block (15) and a second straight top block (16) on both sides. The second inclined top block (15) and the second straight top block (16) are connected to the two side edges of the decorative strip forming part (2). The second inclined top block (15) and the second straight top block (16) are respectively connected to the ejector plate (4) through the second inclined top rod (17) and the second straight top rod (18). The second straight top block (16) is located between the first inclined top block (10) and the second inclined top block (15).

8. The direct-ejector plus inclined-ejector secondary ejection mechanism for a large automotive electroplating decorative strip mold according to claim 7, characterized in that, The first inclined push rod (8) and the second inclined push rod (17) are connected to the ejector plate (4) through a sliding transition structure (19). The lower template (1) is also fixedly connected to a number of inclined push rod guide plates (20) corresponding to the first inclined push rod (8) and the second inclined push rod (17). The first inclined push rod (8) and the second inclined push rod (17) both pass through the inclined push rod guide plate (20), and a steering ball (21) is provided at the connection between the first inclined push rod (8) and the second inclined push rod (17) and the inclined push rod guide plate (20).

9. The direct-ejector plus inclined-ejector secondary ejection mechanism of the large automotive electroplating decorative strip mold according to claim 8, characterized in that, A sealing ring is provided at the connection between the first inclined push rod (8) and the connecting groove, and a sealing ring installation groove (22) is provided on the part of the first inclined push rod (8) inserted into the connecting groove.

10. The direct-ejector plus inclined-ejector secondary ejection mechanism of the large automotive electroplating decorative strip mold according to claim 9, characterized in that, The first inclined push rod (8) is inserted into the connecting groove and has a positioning groove (23) on its side. The first inclined push block (10) has a positioning pin (24) that is inserted into the positioning groove (23) horizontally.

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