Built-in blade mechanism of rear mold of double-color injection mold for automobile ornaments

Abstract

The utility model belongs to the technical field of molds, and particularly relates to a rear mold built-in blade mechanism of an automobile ornament double-color injection mold. The automobile ornament forming mold comprises an automobile ornament forming front mold and an automobile ornament forming rear mold. In the injection molding process, the molding insert panel is attached to the molding surface of the ornament to form a complete cavity, molten materials are injected into the cavity, the built-in blade assembly is attached to the cavity, single-color injection molding is carried out firstly, mold opening is carried out after single-color injection molding is completed, the built-in blade assembly is separated from the molding insert panel, and then secondary mold closing is carried out. By adopting the built-in blade structure, the double-color automobile ornament plastic part needing to be subjected to injection molding according to the colors is subjected to accurate injection molding degree, the error of double-color injection molding is reduced, the production efficiency is improved, and the production cost is reduced. And meanwhile, during injection molding, the molded panel can be locked in multiple directions through the baffle seat and the multi-direction panel locking piece, so that the deformation of the cavity is avoided, and the overall quality of a plastic part is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds and relates to a rear mold built-in blade mechanism of a two-color injection mold for automobile accessories. Background Art

[0002] In the field of automobile parts processing, two-color injection molds are often used to process parts that combine two colors or two materials. Traditional two-color molds are prone to errors when two-color molding if a single mold is used. The accuracy is difficult to control during injection molding, and the cavity is prone to deformation, affecting the overall quality of the plastic part. Therefore, it is urgent to design a two-color injection mold for automobile accessories with a built-in blade mechanism in the rear mold that can overcome the above defects.

[0003] In order to overcome the shortcomings of the prior art, people have proposed various solutions through continuous exploration. For example, a Chinese patent discloses a two-color decorative bracket injection mold [application number: 201510630279.6], including a fixed mold base plate, a fixed mold plate, a cavity plate, a movable mold plate, a movable mold base plate, a mold foot strip, a rotating plate and a mold foot plate. The fixed mold base plate, the fixed mold plate, the cavity plate, the movable mold plate, the movable mold base plate, the mold foot strip, the rotating plate and the mold foot plate are arranged in sequence from top to bottom. A gate sleeve and a guide column are arranged on the fixed mold base plate. The guide column is slidably connected with the fixed mold base plate, the fixed mold plate, the cavity plate, the movable mold plate and the movable mold base plate in sequence. A limiting screw is arranged on one side of the guide column. A gate channel is arranged in the fixed mold plate, and the gate channel is connected to the gate sleeve. A molding core is arranged in the cavity plate, and a top shaft is arranged in the middle of the rotating plate and the mold foot plate. Utility Model Content

[0004] The utility model aims to solve the above problems and provides a built-in blade mechanism for the rear mold of a two-color injection mold for automobile accessories.

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

[0006] A built-in blade mechanism in the rear mold of a two-color injection mold for an automobile decoration, comprising an automobile decoration molding front mold and an automobile decoration molding rear mold, a molding panel is arranged between the automobile decoration molding front mold and the automobile decoration molding rear mold, a decoration molding surface matching the shape of the molding panel is arranged in the automobile decoration molding rear mold, a buckle molding portion is arranged on the decoration molding surface, a built-in blade assembly is arranged at the bottom of the molding panel, the built-in blade assembly corresponds to the position of the decoration molding surface, a stopper is also arranged between the automobile decoration molding front mold and the automobile decoration molding rear mold, the stopper is abutted and matched with the molding panel, a multi-directional panel locking piece is arranged on the stopper, and the multi-directional panel locking piece abuts against the molding panel.

[0007] In the above-mentioned rear mold built-in blade mechanism of the two-color injection mold for automobile accessories, the built-in blade assembly includes a plurality of panel bottom blades arranged at the bottom of the molding panel, and the panel bottom blades are connected to the molding panel through a connecting piece.

[0008] In the above-mentioned rear mold built-in blade mechanism of the two-color injection mold for automobile accessories, the connecting member includes a connecting slide bar arranged between the blade at the bottom of the panel and the forming panel, and the connecting slide bar is clamped with the forming panel.

[0009] In the above-mentioned rear mold built-in blade mechanism of the two-color injection mold for automobile accessories, the buckle molding part includes a plurality of buckle molding protrusions arranged on the molding surface of the accessories, and the buckle molding protrusions are staggered with the blades at the bottom of the panel.

[0010] In the above-mentioned rear mold built-in blade mechanism of the two-color injection mold for automobile accessories, the accessories molding surface is also provided with an accessories groove molding part, and the accessories groove molding part is staggered with the buckle molding protrusion.

[0011] In the above-mentioned rear mold built-in blade mechanism of the two-color injection mold for automobile accessories, the accessories groove forming part includes a plurality of accessories groove forming protrusions arranged on the accessories molding surface, and the accessories groove forming protrusions are located in the middle of the accessories molding surface.

[0012] In the above-mentioned rear mold built-in blade mechanism of the two-color injection mold for automotive accessories, the multi-directional panel locking member includes an end locking slider and a side locking slider arranged on the block seat, and the end locking slider and the side locking slider are respectively against the molding panel.

[0013] In the above-mentioned rear mold built-in blade mechanism of the two-color injection mold for automobile accessories, a first limiting slider is provided at the bottom of the end locking slider, and the first limiting slider is slidably matched with the stopper.

[0014] In the above-mentioned rear mold built-in blade mechanism of the two-color injection mold for automobile accessories, a second limiting slider is provided at the bottom of the side locking slider, and the second limiting slider is slidably matched with the stopper.

[0015] In the above-mentioned rear mold built-in blade mechanism of the two-color injection mold for automobile accessories, the end locking slider and the side locking slider are driven by a cylinder.

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

[0017] 1. In the injection molding process of the utility model, the molding panel and the molding surface of the decorative part are fitted together to form a complete cavity, the molten material is injected into the cavity, the built-in blade assembly is fitted with the cavity, and single-color injection molding is performed first. After the single-color injection molding is completed, the mold is opened, the built-in blade assembly is separated from the molding panel, and then the mold is closed for the second time, and the material of another color is injected into the original position of the built-in blade assembly to achieve two-color injection molding. The built-in blade structure is used to accurately inject the two-color automobile decorative plastic parts that need to be injection molded by color, reduce the error of two-color injection molding, and at the same time, the molding panel can be multi-directionally locked by the stopper and the multi-directional panel locking member during injection molding to avoid deformation of the cavity and ensure the overall quality of the plastic parts.

[0018] 2. In the injection molding process of the utility model, the buckle molding protrusion 12 can simultaneously mold the buckle structure of the automobile decoration, and the decoration groove molding protrusion 14 can simultaneously mold the groove structure of the automobile decoration, without the need for secondary processing, thus shortening the production process and reducing the production cost.

[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 structural schematic diagram of the utility model.

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

[0022] Figure 3 It is a partial structural schematic diagram of the utility model in another direction.

[0023] Figure 4 It is a partial structural schematic diagram of the utility model in another direction.

[0024] In the figure: an automobile trim molding front mold 1, an automobile trim molding rear mold 2, a molding panel 3, a trim molding surface 4, a snap-on molding portion 5, a built-in blade assembly 6, a stopper 7, a multi-directional panel locking member 8, a panel bottom blade 9, a connecting member 10, a connecting slide bar 11, a snap-on molding protrusion 12, a trim groove molding portion 13, a trim groove molding protrusion 14, an end locking slider 15, a side locking slider 16, a first limit slider 17, a second limit slider 18, and a cylinder 19. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings.

[0026] like Figure 1-4As shown, a rear mold built-in blade mechanism of a two-color injection mold for an automobile decoration comprises an automobile decoration molding front mold 1 and an automobile decoration molding rear mold 2, a molding panel 3 is arranged between the automobile decoration molding front mold 1 and the automobile decoration molding rear mold 2, a decoration molding surface 4 matching the shape of the molding panel 3 is arranged in the automobile decoration molding rear mold 2, a buckle molding portion 5 is arranged on the decoration molding surface 4, a built-in blade assembly 6 is arranged at the bottom of the molding panel 3, and the built-in blade assembly 6 corresponds to the position of the decoration molding surface 4, a stopper 7 is also arranged between the automobile decoration molding front mold 1 and the automobile decoration molding rear mold 2, the stopper 7 is abutted and matched with the molding panel 3, a multi-directional panel locking member 8 is arranged on the stopper 7, and the multi-directional panel locking member 8 abuts against the molding panel 3.

[0027] In this embodiment, during the injection molding process, the molding panel 3 and the molding surface 4 of the decorative part are fitted together to form a complete cavity, the molten material is injected into the cavity, the built-in blade assembly 6 is fitted with the cavity, and single-color injection molding is performed first. After the single-color injection molding is completed, the mold is opened, and the built-in blade assembly 6 is separated from the molding panel 3, and then the mold is closed for a second time, and the material of another color is injected into the original position of the built-in blade assembly 6 to achieve two-color injection molding. The built-in blade structure is used to accurately inject the two-color automobile decorative plastic parts that need to be injection molded by color, thereby reducing the error of two-color injection molding. At the same time, during injection molding, the molding panel 3 can be multi-directionally locked by the stopper 7 and the multi-directional panel locking member 8 to avoid deformation of the cavity and ensure the overall quality of the plastic parts.

[0028] Combination Figure 1-4 As shown, the built-in blade assembly 6 includes a plurality of panel bottom blades 9 arranged at the bottom of the forming panel 3 , and the panel bottom blades 9 are connected to the forming panel 3 via a connecting piece 10 .

[0029] Specifically, after the single-color injection molding is completed, the mold is opened, the bottom blade 9 of the panel is separated from the molding panel 3, and then the mold is closed for the second time, and the material of another color is injected into the bottom blade 9 of the panel at the original position to realize the two-color injection molding. The built-in blade structure is used to accurately inject the two-color automobile trim plastic parts that need to be injection molded by color, thereby reducing the error of the two-color injection molding. The connector 10 is used to connect and fix the bottom blade 9 of the panel.

[0030] The connecting member 10 comprises a connecting slide bar 11 disposed between the panel bottom blade 9 and the forming panel 3 , and the connecting slide bar 11 is clamped with the forming panel 3 .

[0031] In this embodiment, the connecting slide bar 11 is used to connect and fix the bottom blade 9 of the panel. When the secondary injection molding is performed, the connecting slide bar 11 and the bottom blade 9 of the panel are pulled away from the molding panel 3.

[0032] Combination Figure 3 , Figure 4 As shown, the snap-fit ​​molding portion 5 includes a plurality of snap-fit ​​molding protrusions 12 arranged on the trim molding surface 4 , and the snap-fit ​​molding protrusions 12 are staggered with the panel bottom blades 9 .

[0033] In this embodiment, during the injection molding process, the buckle molding protrusion 12 can simultaneously mold the buckle structure of the automobile decoration.

[0034] The decorative component forming surface 4 is also provided with a decorative component groove forming portion 13 , and the decorative component groove forming portion 13 and the buckle forming protrusion 12 are arranged alternately.

[0035] In this embodiment, during the injection molding process, the trim groove molding portion 13 can simultaneously mold the groove structure of the automobile trim.

[0036] Combination Figure 4 As shown, the decoration groove forming portion 13 includes a plurality of decoration groove forming protrusions 14 arranged on the decoration forming surface 4 , and the decoration groove forming protrusions 14 are located in the middle of the decoration forming surface 4 .

[0037] In this embodiment, during the injection molding process, the trim groove molding protrusion 14 can simultaneously mold the groove structure of the automobile trim.

[0038] The multi-directional panel locking member 8 comprises an end locking slider 15 and a side locking slider 16 which are arranged on the stopper 7 , and the end locking slider 15 and the side locking slider 16 are respectively against the forming panel 3 .

[0039] In this embodiment, during the injection molding process, the end and side of the molding panel 3 are clamped by the end locking slider 15 and the side locking slider 16 to achieve multi-directional locking, avoid deformation of the cavity, and ensure the overall quality of the plastic part.

[0040] Combination Figure 3-4 As shown, a first limiting slider 17 is provided at the bottom of the end locking slider 15 , and the first limiting slider 17 is slidably matched with the blocking seat 7 .

[0041] In this embodiment, during the movement of the end locking slider 15 , the limiting is achieved through the sliding cooperation between the first limiting slider 17 and the blocking seat 7 .

[0042] Combination Figure 3-4 As shown, a second limiting slider 18 is provided at the bottom of the side locking slider 16 , and the second limiting slider 18 is slidably matched with the blocking seat 7 .

[0043] In this embodiment, during the movement of the side locking slider 16 , the limiting is achieved through the sliding cooperation between the second limiting slider 18 and the blocking seat 7 .

[0044] Combination Figure 2-4As shown, the end locking slider 15 and the side locking slider 16 are driven by a cylinder 19 .

[0045] In this embodiment, the end locking slider 15 and the side locking slider 16 are driven by the oil cylinder 19, and the degree of automation is relatively high.

[0046] The working principle of the utility model is:

[0047] During the injection molding process, the molding panel 3 and the molding surface 4 of the trim are fitted together to form a complete cavity, and the molten material is injected into the cavity. The built-in blade assembly 6 is fitted with the cavity, and single-color injection molding is performed first. After the single-color injection molding is completed, the mold is opened, and the blade 9 at the bottom of the panel is separated from the molding panel 3, and then the secondary mold is closed, and the material of another color is injected into the bottom blade 9 of the panel at the original position to achieve two-color injection molding. The built-in blade structure is used to accurately inject the two-color automobile trim plastic parts that need to be injection molded by color, and the error of two-color injection molding is reduced. The connecting slide bar 11 is used to connect and fix the bottom blade 9 of the panel. When the secondary injection molding is performed, the connecting slide bar 11 and the bottom blade 9 of the panel are pulled out from the molding panel 3. During the injection molding process, the snap-on molding protrusion 12 can synchronously mold the snap-on structure of the automobile decoration, and the decoration groove molding protrusion 14 can synchronously mold the groove structure of the automobile decoration. The end and side of the molding panel 3 are snapped together through the end locking slider 15 and the side locking slider 16 to achieve multi-directional locking, avoid deformation of the cavity, and ensure the overall quality of the plastic part. During the movement of the end locking slider 15, the limiting is achieved through the sliding cooperation between the first limiting slider 17 and the block seat 7. During the movement of the side locking slider 16, the limiting is achieved through the sliding cooperation between the second limiting slider 18 and the block seat 7. The end locking slider 15 and the side locking slider 16 are driven by the cylinder 19, and the degree of automation is relatively high.

[0048] 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 without departing from the spirit of the present invention.

[0049] Although this article uses more terms such as automobile trim molding front mold 1, automobile trim molding rear mold 2, molding panel 3, trim molding surface 4, buckle molding part 5, built-in blade assembly 6, stopper 7, multi-directional panel locking member 8, panel bottom blade 9, connecting member 10, connecting slide 11, buckle molding protrusion 12, trim groove molding part 13, trim groove molding protrusion 14, end locking slider 15, side locking slider 16, first limit slider 17, second limit slider 18, oil cylinder 19, etc., it does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of the utility model, and interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A two-color injection mold for automobile accessories with a built-in blade mechanism in the rear mold, comprising an automobile accessories molding front mold (1) and an automobile accessories molding rear mold (2), characterized in that: A molding panel (3) is provided between the automobile decoration molding front mold (1) and the automobile decoration molding rear mold (2); a decoration molding surface (4) matching the shape of the molding panel (3) is provided inside the automobile decoration molding rear mold (2); a buckle molding portion (5) is provided on the decoration molding surface (4); a built-in blade assembly (6) is provided at the bottom of the molding panel (3); the built-in blade assembly (6) corresponds to the position of the decoration molding surface (4); a stopper (7) is further provided between the automobile decoration molding front mold (1) and the automobile decoration molding rear mold (2); the stopper (7) is in abutment with the molding panel (3); a multi-directional panel locking member (8) is provided on the stopper (7); the multi-directional panel locking member (8) is in abutment with the molding panel (3).

2. The rear mold built-in blade mechanism of the two-color injection mold for automobile accessories according to claim 1 is characterized in that: The built-in blade assembly (6) comprises a plurality of panel bottom blades (9) arranged at the bottom of the forming panel (3); the panel bottom blades (9) are connected to the forming panel (3) via a connecting piece (10).

3. The rear mold built-in blade mechanism of the two-color injection mold for automobile accessories according to claim 2 is characterized in that: The connecting member (10) comprises a connecting slide bar (11) arranged between a panel bottom blade (9) and the forming panel (3), and the connecting slide bar (11) is clamped with the forming panel (3).

4. The rear mold built-in blade mechanism of the two-color injection mold for automobile accessories according to claim 3 is characterized in that: The snap-fit ​​molding portion (5) comprises a plurality of snap-fit ​​molding protrusions (12) arranged on the molding surface (4) of the decorative component, and the snap-fit ​​molding protrusions (12) are arranged alternately with the blades (9) at the bottom of the panel.

5. The rear mold built-in blade mechanism of the two-color injection mold for automobile accessories according to claim 4 is characterized in that: The decorative component forming surface (4) is also provided with a decorative component groove forming portion (13), and the decorative component groove forming portion (13) and the buckle forming protrusion (12) are arranged alternately.

6. The rear mold built-in blade mechanism of the two-color injection mold for automobile accessories according to claim 5, characterized in that: The decorative part groove forming portion (13) comprises a plurality of decorative part groove forming protrusions (14) arranged on the decorative part forming surface (4), and the decorative part groove forming protrusions (14) are located in the middle of the decorative part forming surface (4).

7. The rear mold built-in blade mechanism of the two-color injection mold for automobile accessories according to claim 6, characterized in that: The multi-directional panel locking member (8) comprises an end locking slider (15) and a side locking slider (16) arranged on the blocking seat (7), and the end locking slider (15) and the side locking slider (16) respectively abut against the forming panel (3).

8. The rear mold built-in blade mechanism of the two-color injection mold for automobile accessories according to claim 7, characterized in that: A first limiting slider (17) is provided at the bottom of the end locking slider (15), and the first limiting slider (17) is slidably matched with the stopper (7).

9. The rear mold built-in blade mechanism of the two-color injection mold for automobile accessories according to claim 8, characterized in that: A second limiting slider (18) is provided at the bottom of the side locking slider (16), and the second limiting slider (18) is slidably matched with the blocking seat (7).

10. The rear mold built-in blade mechanism of the two-color injection mold for automobile accessories according to claim 9, characterized in that: The end locking slide block (15) and the side locking slide block (16) are driven by an oil cylinder (19).

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