Injection mold for decorative cover of automobile headlamp

Abstract

The utility model provides an injection mold for a decorative cover of an automobile headlamp, and belongs to the technical field of molds. The die comprises an upper die plate and a lower die plate, two forming cavities are symmetrically formed between the upper die plate and the lower die plate, and a double-forming-cavity synchronous glue feeding assembly is arranged on the upper side of the upper die plate. The double-forming-cavity synchronous glue feeding assembly can feed glue into the two forming cavities at the same time, so that the mold can conduct injection molding on two trim cover products at a time, and the detachable insert structure is matched with the insert core pulling structure to achieve core pulling of the horizontal part of an insert after the products are subjected to injection molding. And when the horizontal protruding part of the insert is damaged, the horizontal protruding part can be directly replaced without replacing the whole insert, and due to the detachable arrangement of the insert, the insert body can be independently replaced and maintained when being damaged, so that the maintenance cost of equipment is further reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds and relates to an injection mold for a decorative cover of an automobile headlamp. Background Art

[0002] Automobile headlight decorative covers are generally formed by injection molding. An insert is vertically arranged on the lower template of the automobile headlight decorative cover mold. The insert is horizontally protruded on one side close to the molding cavity and has a convex portion inserted into the molding cavity. After the product is injection molded, the insert needs to be cored out as a whole to achieve product demoulding. However, such a design has a high maintenance cost when the convex portion of the insert is damaged.

[0003] For example, a Chinese patent discloses an inverted inner draw mechanism for a car headlight mask mold [application number: 201120453558.7], which includes an upper top plate and a lower bottom plate of the mold, the upper top plate is connected to a fixed mold plate via a pad, a mold foot is installed on the lower bottom plate, an upper ejector plate and a lower ejector plate are arranged in the mold foot, an ejector rod is connected to the upper and lower ejector plates, a movable mold plate is installed on the mold foot, a movable mold insert is installed on the movable mold plate, a formed car headlight mask is arranged between the movable mold insert and the fixed mold plate, and an inverted cover is formed around the mask, which is characterized in that an inner draw block is installed on the lower bottom plate, the inner draw block passes through the movable mold plate, a vertical oblique guide groove is formed on the inner draw block, an inverted slide block is arranged on the vertical oblique guide groove, the inverted slide block cooperates with the inverted cover, a transverse oblique guide groove is formed at the bottom of the inverted slide block, the transverse oblique guide groove cooperates with the inner slide block, and the inner slide block is fixed in the movable mold plate by screws. Utility Model Content

[0004] The utility model aims to solve the above problems and provides an injection mold for a decorative cover of an automobile headlamp.

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

[0006] A car headlight decorative cover injection mold comprises an upper mold plate and a lower mold plate, wherein two molding cavities are symmetrically arranged between the upper mold plate and the lower mold plate, a dual molding cavity synchronous glue feeding assembly is arranged on the upper side of the upper mold plate, and detachable insert structures respectively connected to the outer sides of the two molding cavities and insert core pulling structures corresponding to the detachable insert structures are also arranged on both sides of the lower mold plate.

[0007] In the above-mentioned automobile headlight decorative cover injection mold, the removable insert structure includes a vertical insert that vertically penetrates the lower mold plate from the bottom of the lower mold plate upward, and the inner side of the vertical insert is connected to the outer side of the molding cavity. The vertical insert is also provided with a horizontal insert that is horizontally inserted into the molding cavity, and the outer end of the horizontal insert is connected to the insert core pulling structure.

[0008] In the above-mentioned injection mold for the automobile headlight decorative cover, the bottom of the vertical insert is fixedly connected with an insert mounting plate, and the insert mounting plate is fixedly connected to the bottom of the lower mold plate by a plurality of screws.

[0009] In the above-mentioned automobile headlight decorative cover injection mold, the inner end of the horizontal insert protrudes from the vertical insert and is inserted into the molding cavity. The insert core pulling structure includes a core pulling slider arranged on the lower mold plate and a core pulling drive structure arranged on the upper mold plate. The outer end of the horizontal insert is connected to the core pulling slider through a No. 1 limiting structure.

[0010] In the above-mentioned automobile headlight decorative cover injection mold, the core-pulling driving structure includes a driving rod obliquely fixed on the upper mold plate, and the driving rod is obliquely inserted into the core-pulling slider and slidably cooperates with the core-pulling slider.

[0011] In the above-mentioned automobile headlight decorative cover injection mold, the No. 1 limiting structure includes a horizontally arranged No. 1 T-shaped limiting groove, the No. 1 T-shaped limiting groove and the horizontal insert are perpendicular and both ends pass through the core-pulling slider, and the outer end of the horizontal insert has a connecting part with a T-shaped cross-section, and the connecting part and the No. 1 T-shaped limiting groove are slidably matched.

[0012] In the above-mentioned injection mold for the automobile headlamp decorative cover, a second limiting structure is also provided between the core-pulling slider and the lower mold plate.

[0013] In the above-mentioned automobile headlight decorative cover injection mold, the No. 2 limiting structure includes a T-shaped limiting block horizontally fixed on the lower mold plate, the core-pulling slider is arranged parallel to the horizontal insert, and the bottom of the core-pulling slider has a No. 2 T-shaped limiting groove that slides with the T-shaped limiting block.

[0014] In the above-mentioned automobile headlight decorative cover injection mold, the dual molding cavity synchronous glue injection component includes an injection plate main body, which is linear and parallel to the center line of the lower mold plate, and the front and rear sides of the injection plate main body are respectively connected to an intermediate injection tube, and the bottom of the intermediate injection tube is connected to the inner sides of the two molding cavities through a two-way glue injection channel.

[0015] In the above-mentioned automobile headlight decorative cover injection mold, injection plate support plates are symmetrically arranged on both sides of the injection plate body, and the outer ends of the injection plate support plates are fixedly connected with external injection tubes. The two external injection tubes are connected to the outer sides of the two molding cavities through external glue inlet channels.

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

[0017] 1. The dual-cavity synchronous glue-feeding assembly can feed glue into two molding cavities at the same time so that the mold can injection mold two decorative cover products at one time. The detachable insert structure and the insert core-pulling structure can realize the core pulling of the horizontal part of the insert after the product is injection molded. When the horizontal protruding part of the insert is damaged, the part can be directly replaced without replacing the entire insert. The detachable setting of the insert can also make it possible to replace and repair the insert body independently when it is damaged, so as to further reduce the equipment maintenance cost.

[0018] 2. The horizontal insert horizontally penetrates the vertical insert and slides with the vertical insert. After the product is injection molded, the insert core-pulling structure can drive the horizontal insert to move away from the molding cavity so that the horizontal insert and the molding cavity are separated to facilitate product demoulding. When either the horizontal insert or the vertical insert is damaged, it can be replaced independently to reduce maintenance costs.

[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 schematic diagram of a detachable insert structure and an insert core-pulling structure.

[0024] In the figure, an upper template 1, a lower template 2, a molding cavity 3, a dual molding cavity synchronous glue feeding component 4, a detachable insert structure 5, an insert core pulling structure 6, a vertical insert 7, a horizontal insert 8, an insert mounting plate 9, a core pulling slider 10, a driving rod 11, a No. 1 T-shaped limit groove 12, a connecting part 13, a T-shaped limit block 14, a No. 2 T-shaped limit groove 15, an injection molding plate body 16, an intermediate injection molding tube 17, a two-way glue feeding channel 18, an injection molding plate support plate 19, an external injection molding tube 20, and an external glue feeding channel 21. DETAILED DESCRIPTION

[0025] like Figure 1-Figure 4As shown, an injection mold for an automobile headlight decorative cover comprises an upper mold plate 1 and a lower mold plate 2, two molding cavities 3 are symmetrically arranged between the upper mold plate 1 and the lower mold plate 2, a dual molding cavity synchronous glue feeding component 4 is arranged on the upper side of the upper mold plate 1, and removable insert structures 5 respectively connected to the outer sides of the two molding cavities 3 and insert core pulling structures 6 corresponding to the removable insert structures 5 are also arranged on both sides of the lower mold plate 2.

[0026] In the utility model, the dual-molding cavity synchronous glue feeding component 4 can feed glue into the two molding cavities at the same time so that the mold can injection mold two decorative cover products at one time. The detachable insert structure 5 cooperates with the insert core pulling structure to realize the core pulling of the horizontal part of the insert after the product is injection molded. When the horizontal protruding part of the insert is damaged, the part can be directly replaced without replacing the entire insert. The detachable setting of the insert can also make it possible to independently replace and repair the insert body when it is damaged, so as to further reduce the equipment maintenance cost.

[0027] Specifically, the detachable insert structure 5 includes a vertical insert 7 that vertically penetrates the lower mold plate 2 from the bottom of the lower mold plate 2 upwards, the inner side of the vertical insert 7 is connected to the outer side of the molding cavity 3, and the vertical insert 7 is also provided with a horizontal insert 8 that is horizontally inserted into the molding cavity 3, and the outer end of the horizontal insert 8 is connected to the insert core-pulling structure 6. The horizontal insert 8 horizontally penetrates the vertical insert and slidably cooperates with the vertical insert. After the product is injection molded, the insert core-pulling structure can drive the horizontal insert to move away from the molding cavity so that the horizontal insert and the molding cavity are separated to facilitate product demolding. When either the horizontal insert or the vertical insert is damaged, it can be replaced independently to reduce maintenance costs.

[0028] Specifically, the bottom of the vertical insert 7 is fixedly connected with an insert mounting plate 9, which is fixedly connected to the bottom of the lower template 2 by a number of screws. The vertical insert is detachably connected to the lower template through the insert mounting plate. When the horizontal insert and the vertical insert are separated, the vertical insert can be pulled out from the bottom of the lower template by unscrewing the screws.

[0029] Specifically, the inner end of the horizontal insert 8 protrudes from the vertical insert 7 and is inserted into the molding cavity 3. The insert core-pulling structure 6 includes a core-pulling slider 10 provided on the lower mold plate 2 and a core-pulling driving structure provided on the upper mold plate 1. The outer end of the horizontal insert 8 is connected to the core-pulling slider 10 via a No. 1 limiting structure. When the mold is opened, the core-pulling driving structure can drive the core-pulling slider and the horizontal insert to move away from the molding cavity so that the horizontal insert and the molding cavity are separated. The No. 1 limiting structure allows the horizontal insert and the core-pulling slider to be quickly assembled and disassembled, and through the limiting effect, the core-pulling slider can drive the horizontal insert to move together when it moves away from the molding cavity in the horizontal direction.

[0030] Specifically, the core pulling driving structure includes a driving rod 11 obliquely fixed on the upper mold plate 1, and the driving rod 11 is obliquely inserted into the core pulling slider 10 and slidably cooperates with the core pulling slider 10. When the upper mold plate moves upward, it can drive the driving rod to move vertically upward, and the vertical upward movement of the driving rod can drive the core pulling slider to move horizontally away from the molding cavity, thereby driving the horizontal insert and the product to separate.

[0031] Specifically, the No. 1 limiting structure includes a No. 1 T-shaped limiting groove 12 arranged horizontally, the No. 1 T-shaped limiting groove 12 is perpendicular to the horizontal insert 8 and both ends penetrate the core-pulling slider 10, the outer end of the horizontal insert 8 has a connecting portion 13 with a T-shaped cross section, and the connecting portion 13 and the No. 1 T-shaped limiting groove 12 are slidably matched. The No. 1 T-shaped limiting groove 12 penetrates the core-pulling slider 10 at both ends so that the connecting portion can be inserted into the No. 1 T-shaped slide from both ends, and the limiting cooperation between the No. 1 T-shaped slide and the connecting portion can drive the horizontal insert to move synchronously when the core-pulling slider moves.

[0032] Preferably, combined Figure 1-Figure 4 As shown, a second limiting structure is further provided between the core-pulling slider 10 and the lower template 2, and the second limiting structure includes a T-shaped limiting block 14 horizontally fixed on the lower template 2, the core-pulling slider 10 is arranged parallel to the horizontal insert 8, and the bottom of the core-pulling slider 10 has a second T-shaped limiting groove 15 that slidably cooperates with the T-shaped limiting block 14. The T-shaped limiting block 14 cooperates with the bottom of the core-pulling slider 10 to limit the core-pulling slider when the core-pulling slider moves.

[0033] Specifically, the dual-molding cavity synchronous glue feeding component 4 includes an injection molding plate main body 16, which is linear and parallel to the center line of the lower mold plate 2. The front and rear sides of the injection molding plate main body 16 are respectively connected to an intermediate injection molding tube 17, and the bottom of the intermediate injection molding tube 17 is respectively connected to the inner sides of the two molding cavities 3 through a two-way glue feeding channel 18. Injection molding plate support plates 19 are symmetrically arranged on both sides of the injection molding plate main body 16. The outer ends of the injection molding plate support plates 19 are fixedly connected to external injection molding tubes 20, and the two external injection molding tubes 20 are respectively connected to the outer sides of the two molding cavities 3 through external glue feeding channels 21. The two middle injection tubes on the front and rear sides of the injection plate main body 16 can simultaneously inject glue from the inside of the two molding cavities into the two molding cavities through the two-way glue inlet channel 18 between the two molding cavities. The outer injection tubes on the two injection plate support plates 19 can inject glue from the outside of the molding cavity into the molding cavity through the outer glue inlet channels on the outsides of the two molding cavities. Not only can glue be injected into the two molding cavities at the same time, but glue can also be injected from both sides of the inside and outside of the molding cavity at the same time to improve the glue injection efficiency of the molding cavity.

[0034] The working principle of the utility model is as follows: the dual molding cavity synchronous glue feeding component 4 can simultaneously feed glue into the two molding cavities so that the mold can injection mold two decorative cover products at one time, and the detachable insert structure 5 cooperates with the insert core pulling structure to realize the core pulling of the horizontal part of the insert after the product is injection molded, and when the horizontal protruding part of the insert is damaged, the part can be directly replaced without replacing the entire insert, and the detachable setting of the insert can also make the insert body be replaced and repaired independently when it is damaged, so as to further reduce the equipment maintenance cost;

[0035] The horizontal insert 8 horizontally penetrates the vertical insert and slidably cooperates with the vertical insert. After the product is injection molded, the insert core-pulling structure can drive the horizontal insert to move away from the molding cavity to separate the horizontal insert from the molding cavity to facilitate product demolding. When either the horizontal insert or the vertical insert is damaged, it can be replaced independently to reduce maintenance costs. The vertical insert is detachably connected to the lower template through the insert mounting plate. When the horizontal insert and the vertical insert are separated, the vertical insert can be pulled out from the bottom of the lower template by unscrewing the screws. When opening the mold, the core-pulling drive structure can drive the core-pulling slider and the horizontal insert to move away from the molding cavity to separate the horizontal insert from the molding cavity. The No. 1 limiting structure allows the horizontal insert and the core-pulling slider to be The two ends of the No. 1 T-shaped limit groove 12 pass through the core-pulling slider 10 so that the connecting part can be inserted into the No. 1 T-shaped slide groove from both ends, and the limiting cooperation of the No. 1 T-shaped slide groove and the connecting part can drive the horizontal insert to move synchronously when the core-pulling slider moves. The T-shaped limit block 14 cooperates with the bottom of the core-pulling slider 10 at the bottom of the core-pulling slider 10 to limit the core-pulling slider when the core-pulling slider moves.

[0036] The two middle injection tubes on the front and rear sides of the injection plate main body 16 can simultaneously inject glue from the inside of the two molding cavities into the two molding cavities through the two-way glue inlet channel 18 between the two molding cavities. The outer injection tubes on the two injection plate support plates 19 can inject glue from the outside of the molding cavity into the molding cavity through the outer glue inlet channels on the outsides of the two molding cavities. Not only can glue be injected into the two molding cavities at the same time, but glue can also be injected from both sides of the inside and outside of the molding cavity at the same time to improve the glue injection efficiency of the molding cavity.

[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, lower template 2, molding cavity 3, dual molding cavity synchronous glue feeding assembly 4, detachable insert structure 5, insert core pulling structure 6, vertical insert 7, horizontal insert 8, insert mounting plate 9, core pulling slider 10, drive rod 11, No. 1 T-shaped limit groove 12, connecting part 13, T-shaped limit block 14, No. 2 T-shaped limit groove 15, injection molding plate body 16, middle injection molding tube 17, two-way glue feeding channel 18, injection molding plate support plate 19, external injection molding tube 20, external glue feeding channel 21, 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 injection mold for a decorative cover of an automobile headlamp, comprising an upper mold plate (1) and a lower mold plate (2), characterized in that: Two molding cavities (3) are symmetrically arranged between the upper mold plate (1) and the lower mold plate (2); a dual molding cavity synchronous glue feeding component (4) is arranged on the upper side of the upper mold plate (1); and removable insert structures (5) respectively connected to the outer sides of the two molding cavities (3) and insert core pulling structures (6) corresponding to the removable insert structures (5) are also arranged on both sides of the lower mold plate (2).

2. The automobile headlamp decorative cover injection mold according to claim 1, characterized in that: The removable insert structure (5) comprises a vertical insert (7) which vertically penetrates the lower template (2) from the bottom of the lower template (2) upwards, the inner side of the vertical insert (7) is connected to the outer side of the molding cavity (3), and the vertical insert (7) is also provided with a horizontal insert (8) which is horizontally inserted into the molding cavity (3), and the outer end of the horizontal insert (8) is connected to the insert core pulling structure (6).

3. The automobile headlamp decorative cover injection mold according to claim 2, characterized in that: The bottom of the vertical insert (7) is fixedly connected with an insert mounting plate (9), and the insert mounting plate (9) is fixedly connected to the bottom of the lower template (2) via a plurality of screws.

4. The automobile headlamp decorative cover injection mold according to claim 3, characterized in that: The inner end of the horizontal insert (8) protrudes from the vertical insert (7) and is inserted into the molding cavity (3). The insert core-pulling structure (6) includes a core-pulling slider (10) arranged on the lower mold plate (2) and a core-pulling driving structure arranged on the upper mold plate (1). The outer end of the horizontal insert (8) is connected to the core-pulling slider (10) via a No. 1 limiting structure.

5. The automobile headlamp decorative cover injection mold according to claim 4, characterized in that: The core pulling driving structure comprises a driving rod (11) which is obliquely fixed on the upper mold plate (1); the driving rod (11) is obliquely inserted into the core pulling slider (10) and slidably cooperates with the core pulling slider (10).

6. The automobile headlamp decorative cover injection mold according to claim 5, characterized in that: The No. 1 limiting structure comprises a horizontally arranged No. 1 T-shaped limiting groove (12), the No. 1 T-shaped limiting groove (12) and the horizontal insert (8) are perpendicular and both ends pass through the core-pulling slider (10), the outer end of the horizontal insert (8) has a connecting portion (13) with a T-shaped cross-section, and the connecting portion (13) and the No. 1 T-shaped limiting groove (12) are slidably matched.

7. The automobile headlamp decorative cover injection mold according to claim 6, characterized in that: A second limiting structure is also provided between the core-pulling slider (10) and the lower template (2).

8. The automobile headlamp decorative cover injection mold according to claim 7, characterized in that: The second limiting structure comprises a T-shaped limiting block (14) horizontally fixed on the lower template (2); the core-pulling slider (10) is arranged parallel to the horizontal insert (8); and the bottom of the core-pulling slider (10) has a second T-shaped limiting groove (15) that slidably cooperates with the T-shaped limiting block (14).

9. The automobile headlamp decorative cover injection mold according to claim 1, characterized in that: The dual molding cavity synchronous glue feeding component (4) comprises an injection molding plate body (16), which is linear and parallel to the center line of the lower mold plate (2), and the front and rear sides of the injection molding plate body (16) are respectively connected to an intermediate injection molding tube (17), and the bottom of the intermediate injection molding tube (17) is respectively connected to the inner sides of the two molding cavities (3) through a bidirectional glue feeding channel (18).

10. The automobile headlamp decorative cover injection mold according to claim 9, characterized in that: Injection molding plate support plates (19) are symmetrically arranged on both sides of the injection molding plate main body (16), and the outer ends of the injection molding plate support plates (19) are fixedly connected with external injection molding tubes (20), and the two external injection molding tubes (20) are respectively connected to the outer sides of the two molding cavities (3) through external glue inlet channels (21).

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