Inclined outer core-pulling mechanism of injection mold for double-color protective plate of automobile

Abstract

The utility model provides an inclined outer core-pulling mechanism of an injection mold for a double-color protective plate of an automobile, and belongs to the technical field of molds. The mold comprises an upper mold plate and a lower mold plate, four guard plate main body forming cavities are arranged between the upper mold plate and the lower mold plate, the four guard plate main body forming cavities are symmetrically arranged in pairs, two lower ejection mechanisms are arranged on the lower side of the lower mold plate, and each lower ejection mechanism corresponds to two guard plate main body forming cavities. After injection molding of a first color protection plate is completed through a first color injection mold, the first color protection plate can be placed in a first color protection plate forming cavity forming a protection plate body forming cavity, and a second color glue solution is injected into a second color protection plate forming cavity through a second color injection molding mechanism, so that the whole double-color protection plate can be formed through injection molding; and the four protection plate main body forming cavities are arranged in the mold, so that four products can be subjected to injection molding at a time, and the injection molding efficiency can be effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds and relates to an oblique outer core pulling mechanism of an automobile double-color guard plate injection mold. Background Art

[0002] Automobile two-color guard plates are generally produced by injection molding. The two-color guard plate mold in the prior art can generally only produce one or two two-color guard plates in one production, and the injection molding efficiency is low.

[0003] For example, a Chinese patent discloses an in-mold rotary molding mechanism for a slider of a two-color injection mold for a car taillight guard plate [application number: 202123446556.8], including an injection upper mold, and a fixed side guard plate seat is provided below the injection upper mold. During the injection molding process, the utility model makes the guard plate molding insert fit tightly with the in-mold rotary molding component to form a complete cavity, and the molten material is injected into the cavity through the injection upper mold for injection molding. After the injection molding is completed, the mold is opened to separate the connection base and the in-mold rotary molding component from the fixed side guard plate seat. At this time, the in-mold rotary molding component is rotated to rotate the molded plastic part to the demolding personnel. Utility Model Content

[0004] The utility model aims to solve the above problems and provides an oblique outer core pulling mechanism for an automobile two-color guard plate injection mold.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A slanted outer core pulling mechanism of a two-color guard plate injection mold for an automobile comprises an upper template and a lower template, four guard plate main body molding cavities are arranged between the upper template and the lower template, the four guard plate main body molding cavities are symmetrically arranged in pairs, two lower ejection mechanisms are arranged on the lower side of the lower template, each lower ejection mechanism corresponds to two guard plate main body molding cavities, the guard plate main body molding cavities are formed by a combination of a first-color guard plate molding cavity and a second-color guard plate molding cavity, two second-color injection molding mechanisms corresponding to the two lower ejection mechanisms are also arranged on the upper side of the upper template, the second-color injection molding mechanism is connected to the second-color guard plate molding cavity, two slanted outer core pulling assemblies are also arranged on both sides of the lower template, and the slanted outer core pulling assemblies are connected to the outer side of the first-color guard plate molding cavity.

[0007] In the above-mentioned oblique outer core pulling mechanism of the automobile two-color guard plate injection mold, the oblique outer core pulling assembly includes a core pulling seat that slides with the lower template through a limiting structure, the core pulling seat is tilted, and a side insert is provided at the inner end of the core pulling seat, and the side insert is inserted into the molding cavity of the No. 1 color guard plate.

[0008] In the above-mentioned oblique outer core pulling mechanism of the automobile two-color guard plate injection mold, the oblique outer core pulling assembly also includes a core pulling seat driving member arranged on the upper mold plate.

[0009] In the above-mentioned oblique outer core pulling mechanism of the automobile two-color guard plate injection mold, the core pulling seat driving part includes two driving rods obliquely fixed on the upper mold plate, and the driving rods are obliquely inserted into the core pulling seat and slidably cooperate with the core pulling seat.

[0010] In the above-mentioned oblique outer core pulling mechanism of the automobile two-color guard plate injection mold, the limiting structure includes two limiting pressure plates symmetrically arranged on both sides of the core pulling seat, and the limiting pressure plates are fixed to the lower mold plate by a plurality of screws.

[0011] In the above-mentioned oblique outer core pulling mechanism of the automobile two-color guard plate injection mold, the second color injection molding mechanism includes an injection molding plate, a second color injection molding tube is fixedly connected to the bottom of the injection molding plate, and the lower mold plate is also provided with a double-outlet glue inlet flow channel structure connected to the second color injection molding tube.

[0012] In the above-mentioned oblique outer core pulling mechanism of the automobile two-color guard plate injection mold, the dual-outlet glue inlet flow channel structure includes a V-shaped glue inlet flow channel recessed inwardly on the lower mold plate, and the two ends of the V-shaped glue inlet flow channel are respectively connected to the two second-color guard plate molding cavities.

[0013] In the above-mentioned oblique outer core pulling mechanism of the automobile two-color guard plate injection mold, the lower ejection mechanism includes a top plate, and a combined ejection assembly is arranged on the top plate.

[0014] In the above-mentioned oblique outer core pulling mechanism of the automobile two-color guard plate injection mold, the combined ejection assembly includes an oblique ejector block, a straight ejector block and an oblique ejector rod. The oblique ejector block is hinged to the top plate through the oblique ejector rod, the bottom of the oblique ejector rod is hinged to the top plate, the oblique directions of the oblique ejector rod and the oblique ejector rod are opposite, and the oblique ejector block and the oblique ejector rod are respectively connected to the second color guard plate molding cavity and the first color guard plate molding cavity, the straight ejector block is fixedly connected to the top plate through the vertical ejector rod, and the straight ejector block is connected to the second color guard plate molding cavity.

[0015] In the above-mentioned oblique outer core pulling mechanism of the automobile two-color guard plate injection mold, the combined ejection assembly also includes a plurality of straight ejector rods, which are respectively connected to the first color guard plate molding cavity and the second color guard plate molding cavity.

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

[0017] 1. After the injection molding of the No. 1 color guard plate is completed through the No. 1 color injection mold, the No. 1 color guard plate can be placed in the No. 1 color guard plate molding cavity that constitutes the guard plate main body molding cavity, and the No. 2 color injection molding mechanism is used to inject the No. 2 color glue into the No. 2 color guard plate molding cavity to form a two-color guard plate as a whole. The mold of the present application is provided with four guard plate main body molding cavities, which can inject four products at a time, and can effectively improve the injection molding efficiency.

[0018] 2. After the product is injection molded, the two-color guard plate product can be ejected from the lower template through the two lower ejection mechanisms. The oblique outer core pulling assembly can realize automatic core pulling when the mold is opened to facilitate product demolding. After the product is injection molded, the upper template moves upward to drive the two inclined driving rods to move vertically upward. The vertical upward movement of the two driving rods can drive the core pulling seat to move obliquely upward away from the molding cavity of the No. 1 color guard plate, thereby separating the side insert and the molding cavity of the No. 1 color guard plate.

[0019] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the external structure of the utility model;

[0021] Figure 2 It is a partial structural schematic diagram of the utility model;

[0022] Figure 3 It is a structural diagram of the lower template;

[0023] Figure 4 It is a structural diagram of the lower ejection mechanism.

[0024] In the figure, the upper template 1, the lower template 2, the guard plate main body molding cavity 3, the lower ejection mechanism 4, the No. 1 color guard plate molding cavity 5, the No. 2 color guard plate molding cavity 6, the No. 2 color injection molding mechanism 7, the oblique outer core pulling assembly 8, the core pulling seat 9, the side panel 10, the driving rod 11, the limiting pressure plate 12, the injection molding plate 13, the No. 2 color injection molding tube 14, the V-shaped glue inlet channel 15, the top plate 16, the oblique ejector block 17, the straight ejector block 18, the oblique ejector rod 19, the inclined ejector rod 20, the vertical ejector rod 21, and the straight ejector rod 22. DETAILED DESCRIPTION

[0025] like Figure 1-Figure 4 As shown, an oblique outer core pulling mechanism of a two-color guard plate injection mold for an automobile comprises an upper template 1 and a lower template 2, four guard plate main body molding cavities 3 are arranged between the upper template 1 and the lower template 2, and the four guard plate main body molding cavities 3 are symmetrically arranged in pairs, and two lower ejection mechanisms 4 are arranged on the lower side of the lower template 2, and each lower ejection mechanism 4 corresponds to two guard plate main body molding cavities 3, and the guard plate main body molding cavities 3 are formed by a combination of a No. 1 color guard plate molding cavity 5 and a No. 2 color guard plate molding cavity 6, and two No. 2 color injection molding mechanisms 7 corresponding to the two lower ejection mechanisms 4 are also provided on the upper side of the upper template 1, and the No. 2 color injection molding mechanisms 7 are connected to the No. 2 color guard plate molding cavity 6, and two oblique outer core pulling components 8 are also provided on both sides of the lower template 2, and the oblique outer core pulling components 8 are connected to the outer side of the No. 1 color guard plate molding cavity 5.

[0026] In the utility model, after the injection molding of the No. 1 color guard plate is completed by the No. 1 color injection mold, the No. 1 color guard plate can be placed in the No. 1 color guard plate molding cavity 5 constituting the guard plate body molding cavity 3, and the No. 2 color injection molding mechanism 7 is used to inject the No. 2 color glue into the No. 2 color guard plate molding cavity 6 to form a double-color guard plate as a whole. The mold of the present application is provided with four guard plate body molding cavities, which can inject four products at a time, and can effectively improve the injection molding efficiency;

[0027] Specifically, after the product is injection molded, the two-color guard plate product can be ejected from the lower mold plate through the two lower ejection mechanisms 4, and the oblique outer core pulling component can realize automatic core pulling when the mold is opened to facilitate product demolding.

[0028] Specifically, the oblique outer core pulling assembly 8 includes a core pulling seat 9 that is slidably matched with the lower mold plate 2 through a limiting structure. The core pulling seat 9 is tilted, and a side insert 10 is provided at the inner end of the core pulling seat 9. The side insert 10 is inserted into the No. 1 color guard plate molding cavity 5. The oblique outer core pulling assembly 8 also includes a core pulling seat driving member provided on the upper mold plate 1. The core pulling seat driving member includes two driving rods 11 obliquely fixed on the upper mold plate 1. The driving rods 11 are obliquely inserted into the core pulling seat 9 and slidably matched with the core pulling seat 9. After the product is injection molded, the upward movement of the upper mold plate can drive the two obliquely set driving rods to move vertically upward. The vertical upward movement of the two driving rods can drive the core pulling seat to move obliquely upward in the direction away from the No. 1 color guard plate molding cavity, thereby enabling the side insert 10 to be separated from the No. 1 color guard plate molding cavity.

[0029] Specifically, the limiting structure includes two limiting pressure plates 12 symmetrically arranged on both sides of the core pulling seat 9, and the limiting pressure plates 12 are fixed to the lower template 2 by a number of screws. The two limiting pressure plates can limit the core pulling seat, and the limiting pressure plates 12 are detachably fixed to the lower template 2 by a number of screws, which can be easily disassembled.

[0030] Specifically, the second color injection molding mechanism 7 includes an injection molding plate 13, a second color injection molding tube 14 is fixedly connected to the bottom of the injection molding plate 13, and a double-outlet glue inlet flow channel structure connected to the second color injection molding tube 14 is also provided on the lower mold plate 2, and the double-outlet glue inlet flow channel structure includes a V-shaped glue inlet flow channel 15 recessed inwardly arranged on the lower mold plate 2, and the two ends of the V-shaped glue inlet flow channel 15 are respectively connected to the two second color guard plate molding cavities 6. The injection molding plate 13 can inject the second color glue liquid through the second color injection molding tube 14 into the V-shaped glue inlet flow channel 15, and then simultaneously inject the glue into the two second color guard plate molding cavities through the V-shaped glue inlet flow channel 15.

[0031] Specifically, the lower ejection mechanism 4 includes a top plate 16, and a combined ejection assembly is arranged on the top plate 16. The combined ejection assembly can eject the two-color guard plate product from the lower template without damage.

[0032] Specifically, the combined ejection assembly includes an inclined ejector block 17, a straight ejector block 18 and an inclined ejector rod 19. The inclined ejector block 17 is hinged to the top plate 16 through an inclined ejector rod 20. The bottom of the inclined ejector rod 19 is hinged to the top plate 16. The inclined ejector rod 20 and the inclined ejector rod 20 have opposite inclination directions and the inclined ejector block 17 and the inclined ejector rod 19 are respectively connected to the second color guard plate forming cavity 6 and the first color guard plate forming cavity 5. The straight ejector block 18 is fixedly connected to the top plate 16 through a vertical ejector rod 21. The straight ejector block 18 is connected to the second color guard plate forming cavity 6. The combined ejection assembly also includes a plurality of straight ejector rods 22, which are respectively connected to the first color guard plate forming cavity 5 and the second color guard plate forming cavity 6. When the top plate moves upward, it can apply an oblique upward thrust to the second color guard plate portion through the inclined top rod 20 and the inclined top block, and can also apply a vertical upward thrust to the second color guard plate portion through the vertical top rod and the straight top block. It can also directly apply an oblique upward thrust to the first color guard plate portion through the inclined top rod, and can also simultaneously apply a vertical upward thrust to the first color guard plate portion and the second color guard plate portion through a plurality of straight top rods 22, so that each position of the two-color guard plate can be evenly stressed during ejection to prevent the product from being damaged during ejection.

[0033] The working principle of the utility model is: after the injection molding of the No. 1 color guard plate is completed by the No. 1 color injection mold, the No. 1 color guard plate can be placed in the No. 1 color guard plate molding cavity 5 that constitutes the guard plate body molding cavity 3, and the No. 2 color injection molding mechanism 7 is used to inject the No. 2 color glue into the No. 2 color guard plate molding cavity 6 to form a double-color guard plate as a whole. The mold of the present application is provided with four guard plate body molding cavities, which can inject four products at a time, and can effectively improve the injection molding efficiency;

[0034] After the product is injection molded, the two-color guard plate product can be ejected from the lower template by the two lower ejection mechanisms 4. The oblique outer core pulling assembly can realize automatic core pulling when the mold is opened, so as to facilitate product demoulding. After the product is injection molded, the upper template moves upward to drive the two inclined driving rods to move vertically upward. The vertical upward movement of the two driving rods can drive the core pulling seat to move obliquely upward away from the molding cavity of the No. 1 color guard plate, so that the side panel 10 and the molding cavity of the No. 1 color guard plate can be separated. The two limiting pressure plates can limit the core pulling seat, and the limiting pressure plate 12 is detachably fixed to the lower template 2 by a number of screws, which can be easily disassembled;

[0035] The injection molding plate 13 can inject the second color glue liquid into the V-shaped glue inlet flow channel 15 through the second color injection molding tube 14, and then inject the glue into the two second color guard plate molding cavities at the same time through the V-shaped glue inlet flow channel 15;

[0036] The combined ejection assembly can eject the two-color guard plate product from the lower template without damage. When the ejector plate moves upward, it can apply an oblique upward thrust to the second color guard plate portion through the inclined ejector rod 20 and the inclined ejector block, and can also apply a vertical upward thrust to the second color guard plate portion through the vertical ejector rod and the straight ejector block. It can also directly apply an oblique upward thrust to the first color guard plate portion through the inclined ejector rod, and can also simultaneously apply a vertical upward thrust to the first color guard plate portion and the second color guard plate portion through a plurality of straight ejector rods 22, so that each position of the two-color guard plate can be evenly stressed during ejection to prevent the product from being damaged during ejection.

[0037] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0038] Although this article uses the upper template 1, the lower template 2, the guard plate main body molding cavity 3, the lower ejection mechanism 4, the first color guard plate molding cavity 5, the second color guard plate molding cavity 6, the second color injection molding mechanism 7, the inclined outer core pulling assembly 8, the core pulling seat 9, the side panel 10, the drive rod 11, the limit pressure plate 12, the injection molding plate 13, the second color injection molding tube 14, the V-shaped glue inlet channel 15, the top plate 16, the inclined ejector block 17, the straight ejector block 18, the inclined ejector rod 19, the inclined ejector rod 20, the vertical ejector rod 21, the straight ejector rod 22, etc. more frequently, these terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. An oblique outer core pulling mechanism for an automobile two-color guard plate injection mold, comprising an upper mold plate (1) and a lower mold plate (2), characterized in that: Four guard plate main body molding cavities (3) are arranged between the upper template (1) and the lower template (2), and the four guard plate main body molding cavities (3) are symmetrically arranged in pairs. Two lower ejection mechanisms (4) are arranged on the lower side of the lower template (2), and each lower ejection mechanism (4) corresponds to two guard plate main body molding cavities (3). The guard plate main body molding cavity (3) is formed by combining a first-color guard plate molding cavity (5) and a second-color guard plate molding cavity (6). Two second-color injection molding mechanisms (7) corresponding to the two lower ejection mechanisms (4) are also arranged on the upper side of the upper template (1), and the second-color injection molding mechanisms (7) are connected to the second-color guard plate molding cavity (6). Two oblique outer core pulling assemblies (8) are also arranged on both sides of the lower template (2), and the oblique outer core pulling assemblies (8) are connected to the outer side of the first-color guard plate molding cavity (5).

2. The oblique outer core pulling mechanism of the automobile two-color guard plate injection mold according to claim 1 is characterized in that: The oblique outer core pulling assembly (8) includes a core pulling seat (9) that is slidably matched with the lower template (2) through a limiting structure. The core pulling seat (9) is inclined, and a side insert (10) is provided at the inner end of the core pulling seat (9). The side insert (10) is inserted into the No. 1 color guard plate molding cavity (5).

3. The oblique outer core pulling mechanism of the automobile two-color guard plate injection mold according to claim 2 is characterized in that: The oblique outer core pulling assembly (8) further comprises a core pulling seat driving member arranged on the upper mold plate (1).

4. The oblique outer core pulling mechanism of the automobile two-color guard plate injection mold according to claim 3 is characterized in that: The core pulling seat driving member comprises two driving rods (11) which are obliquely fixed on the upper mold plate (1); the driving rods (11) are obliquely inserted into the core pulling seat (9) and slidably cooperate with the core pulling seat (9).

5. The oblique outer core pulling mechanism of the automobile two-color guard plate injection mold according to claim 4 is characterized in that: The limiting structure comprises two limiting pressure plates (12) symmetrically arranged on both sides of the core-pulling seat (9), and the limiting pressure plates (12) are fixed on the lower template (2) by a plurality of screws.

6. The oblique outer core pulling mechanism of the automobile two-color guard plate injection mold according to claim 5 is characterized in that: The second color injection mechanism (7) comprises an injection plate (13), a second color injection tube (14) is fixedly connected to the bottom of the injection plate (13), and a double-outlet glue inlet flow channel structure connected to the second color injection tube (14) is also provided on the lower mold plate (2).

7. The oblique outer core pulling mechanism of the automobile two-color guard plate injection mold according to claim 6 is characterized in that: The dual-outlet glue inlet flow channel structure comprises a V-shaped glue inlet flow channel (15) which is recessed inwardly and arranged on the lower template (2), and the two ends of the V-shaped glue inlet flow channel (15) are respectively connected to two second-color guard plate molding cavities (6).

8. The oblique outer core pulling mechanism of the automobile two-color guard plate injection mold according to claim 7 is characterized in that: The lower ejection mechanism (4) comprises a top plate (16), and a combined ejection assembly is arranged on the top plate (16).

9. The oblique outer core pulling mechanism of the automobile two-color guard plate injection mold according to claim 8 is characterized in that: The combined ejection assembly comprises an inclined ejector block (17), a straight ejector block (18) and an inclined ejector rod (19); the inclined ejector block (17) is hinged to the top plate (16) via an inclined ejector rod (20); the bottom of the inclined ejector rod (19) is hinged to the top plate (16); the inclined ejector rod (20) and the inclined ejector rod (20) are inclined in opposite directions; the inclined ejector block (17) and the inclined ejector rod (19) are respectively connected to the second color guard plate molding cavity (6) and the first color guard plate molding cavity (5); the straight ejector block (18) is fixedly connected to the top plate (16) via a vertical ejector rod (21); and the straight ejector block (18) is connected to the second color guard plate molding cavity (6).

10. The oblique outer core pulling mechanism of the automobile two-color guard plate injection mold according to claim 9, characterized in that: The combined ejection assembly further comprises a plurality of straight ejector rods (22), wherein the plurality of straight ejector rods (22) are respectively connected to the first color guard plate forming cavity (5) and the second color guard plate forming cavity (6).

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