CN203994509U - A kind of fixed mould elastic block mechanism of automobile lamp face shield mould - Google Patents

Abstract

The utility model provides a fixed-die elastic block mechanism of an automobile lamp mask forming die, which belongs to the technical field of dies. The invention solves the problem that the undercut forming on the lamp mask of the existing automobile lamp mask forming mold is inconvenient and affects the product quality. The fixed mold elastic block mechanism includes at least one fixed mold elastic block. The fixed template has a chute corresponding to the position and shape of the fixed mold elastic block. Springs are arranged in the chute, and one end of the spring is against the bottom of the chute. The other end leans against the elastic block of the fixed die, and the elastic block of the fixed die slides inwardly along the chute to abut against the die. The fixed mold elastic block mechanism of the automobile lamp mask forming mold is provided with a fixed mold elastic block that is slidably connected on the fixed template. A cavity that fits the shape of the undercut on the mask; when the mold is opened, there is a gap between the die and the spring block of the fixed mold, so that the undercut can be smoothly separated from the die, and the undercut molding on the lamp mask is more convenient .

Description

A fixed-die elastic block mechanism of a molding die for an automobile lamp mask

technical field

The utility model belongs to the technical field of moulds, and relates to a mold for forming an automobile lamp mask, in particular to a fixed-die spring block mechanism of the mold for forming an automobile lamp mask.

Background technique

In the automotive industry, various molds such as stamping molds, injection molds, forging molds, casting wax patterns, glass molds, etc. are widely used in the production of automotive interiors and panels. Among them, the headlight cover is manufactured by injection molding process, using an injection molding mold.

Injection molding molds usually consist of two parts: a moving mold and a fixed mold. The moving mold is installed on the movable template of the injection molding machine, and the fixed mold is installed on the fixed template of the injection molding machine. During injection molding, the movable mold and the fixed mold are combined to form a pouring system and a cavity. When the mold is opened, the movable mold and the fixed mold are separated, and the product is separated from the mold through the ejector mechanism.

Existing forming molds for car lamp masks, for example, the automobile lampshade injection mold disclosed in Chinese patent [Application No. 201020210391.7; CN201712126U after the authorization announcement] includes an upper double board and a lower double board. Install the fixed mold slider, install the mold foot on the lower double plate, set the top plate inside the mold foot, install the movable template on the mold foot, the mold cavity is formed between the movable template, the fixed template and the fixed mold slider, and there is a molded car in the mold cavity The lampshade is made with an undercut on the lampshade of the car, and an inclined top block is installed on the top plate, and an inclined chute is formed on the inclined top block. The underside of the car lampshade touches. The embodiment part of this patent document records that the fixed mold slider is installed in the fixed template, but does not disclose the specific structure of the fixed mold slider.

The problems existing in the above-mentioned automobile lampshade injection mold are: 1. The inclined slider is in contact with the undercut of the automobile lampshade, and the undercut is separated from the inclined slider through the sliding of the inclined slider. 2. Both ends of the car lampshade usually have undercuts, which makes it necessary to set up inclined sliders at the corresponding positions of the mold, which makes the structure of the mold too complicated, and, in the case of using multiple sliders, the sliders Gaps are easily formed between the sliders and other components. During the molding process, the material enters the gaps, causing strip-like protrusions to form on the inner surface of the lamp mask after molding, which affects the quality of the inner surface of the lampshade.

Contents of the invention

The purpose of this utility model is to solve the above-mentioned problems in the existing technology, and propose a fixed mold spring block mechanism of the automobile lamp mask forming mold. The problem solved by the utility model is how to make the undercut molding on the lamp mask more convenient.

The purpose of the utility model can be achieved through the following technical proposals: a fixed mold elastic block mechanism of an automobile lamp mask forming mold, the forming mold includes a movable mold and a fixed mold, and the movable mold and the fixed mold are formed after being closed. The mold cavity for forming the car lamp mask is characterized in that the fixed mold includes a fixed template, the inner side of the fixed template has a concave mold, and the movable mold includes a movable template; the fixed mold elastic block mechanism includes at least one fixed mold Elastic block, the fixed template has a chute corresponding to the position and shape of the above-mentioned fixed mold elastic block, and a spring is arranged in the chute, and one end of the spring is against the bottom of the chute, and the other end is against the bottom of the chute. On the fixed mold elastic block, the fixed mold elastic block can slide inwardly along the chute to abut against the die.

The working principle of the fixed mold elastic block mechanism of the automobile lamp mask forming mold is: during the forming process of the automobile lamp mask, under the mold closing state, the fixed mold elastic block slides inward and abuts against the concave mold, and the fixed mold elastic block, The concave mold and the punch on the movable template form a cavity that is suitable for the shape of the undercut on the car light mask, and the material enters the cavity and solidifies to form the undercut structure on the car light mask. When the mold is opened and the movable template is withdrawn, the spring block of the fixed die is out of contact with the die under the action of the spring force, so that the undercut can be separated from the gap between the die and the spring block of the fixed die, so that the automobile The light cover is smoothly separated from the die.

In the fixed mold elastic block mechanism of the above-mentioned automobile lamp mask forming mold, the upper surface of the movable template can be in contact with the bottom surface of the fixed mold elastic block, and the movable template pushes the fixed mold during the mold closing process of the movable mold and the fixed mold. The bullet slides inwardly along the chute.

As another solution, in the above-mentioned fixed mold elastic block mechanism of the automobile lamp mask forming mold, the movable template has ejector pins corresponding to the fixed mold elastic blocks one by one, and the movable mold and the fixed mold are closed. During the process, the ejector rod pushes the fixed die spring block to slide inwardly along the chute.

Through the above-mentioned structure, when the mold is closed, the fixed mold spring block can be abutted against the die, and the position where the fixed die spring block and the die contact forms the contour required for forming an undercut; when the mold is opened, the fixed die spring block and the die A gap is formed between the dies to facilitate the undercut to break away from the dies. The movement of the fixed-die elastic block is driven by the movable platen, without a separate driving device, and the movement of the fixed-die elastic block can well adapt to the state of the mold, thereby improving the molding processing efficiency.

In the fixed mold spring block mechanism of the above-mentioned automobile lamp mask forming mold, the lower part of the chute communicates with the outside world, and a limiting block is arranged in the chute, and the limiting block is fixed on the inner wall of the chute by screws superior. When the limit block is not installed, the fixed-die spring block can be freely loaded into or removed from the chute, which makes the installation and replacement of the fixed-die spring block more convenient.

In the fixed mold spring block mechanism of the above-mentioned automobile lamp mask forming mold, the chute is inclined relative to the vertical direction, and the head of the screw faces obliquely downward. The chute is inclined so that during the mold opening process, the spring block of the fixed mold can move to both sides of the fixed template faster, so that the undercut of the car lamp mask can be separated from the die faster; the head of the screw faces obliquely downward, and the tool goes deep When screwing the screw in the chute, avoid the chute wall from blocking the tool, so as to facilitate the installation and removal of the limit block.

Preferably, in the above-mentioned fixed mold spring block mechanism of the automobile lamp mask forming mold, the chute is a dovetail groove, and the fixed mold spring block has a protrusion matching the above-mentioned dovetail groove. Through the dovetail groove, the fixed mold spring block slides along the chute more stably.

In the fixed mold elastic block mechanism of the above-mentioned automobile lamp mask forming mold, the inner end of the chute has a receiving hole, the position corresponding to the fixed mold elastic block has a stepped surface, and one end of the spring is located in the receiving hole. The other end rests on the step surface. It facilitates the installation of the spring and prolongs the service life of the spring.

In the above-mentioned fixed-die spring block mechanism of the automobile lamp mask forming mold, the entire stop block is located in the chute. Avoid interference between the limit block and other parts on the moving plate.

Compared with the prior art, the advantages of the fixed mold spring block mechanism of the automobile lamp mask molding die are:

1. The fixed mold spring block mechanism of the automotive lamp mask forming mold is provided with a fixed mold spring block that is slidably connected to the fixed template. The cavity on the headlight mask is adapted to the shape of the undercut; when the mold is opened, there is a gap between the die and the spring of the fixed die, so that the undercut can be separated from the die smoothly. Therefore, the undercut forming on the lamp mask is more convenient, and the production efficiency is improved.

2. The fixed mold spring block mechanism of the automobile lamp mask forming mold drives the movement of the fixed mold spring block through the movable platen, and there is no need to set up a separate driving device, which makes the structure of the mold simpler. Moreover, the movement of the fixed mold elastic block can well adapt to the state of the mold, which improves the production efficiency.

Description of drawings

Fig. 1 is a schematic diagram of the state of the fixed mold spring block mechanism of the automobile lamp mask forming mold under the mold closing state.

Fig. 2 is a schematic diagram of the state of the fixed mold spring block mechanism of the automobile lamp mask forming mold under the mold opening state.

Fig. 3 is a schematic cross-sectional structure diagram of the fixed mold spring block mechanism of the automobile lamp mask forming mold.

Fig. 4 is a cross-sectional structural schematic diagram of another angle of the fixed mold spring block mechanism of the automobile lamp mask forming mold.

In the figure, 1, fixed template; 11, die; 12, chute; 2, movable template; 21, punch; 6. Screws.

Detailed ways

The following are specific embodiments of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model is not limited to these embodiments.

Embodiment one:

The automobile lamp mask forming mold includes a movable mold and a fixed mold, and after the movable mold and the fixed mold are closed, a cavity for forming the automobile lamp mask is formed. The fixed mold includes a fixed template 1, the inner side of the fixed template 1 has a concave mold 11, and the movable mold includes a movable template 2. The fixed mold spring block mechanism of this automobile light mask forming mold is arranged on the fixed template 1, including the fixed mold spring block 3, the chute 12 and the spring 4.

Specifically, the number of the fixed mold block 3 is at least one, and the number of the fixed mold block 3 is selected according to the structure of the lamp mask. As shown in FIG. 1 and FIG. 2 , in this embodiment, there are two fixed mold blocks 3 . As shown in FIG. 3 , the chute 12 is provided on the fixed template 1 , and the position and shape of the chute 12 correspond to the elastic blocks 3 of the fixed mold one by one. One part of the fixed die elastic block 3 is located in the chute 12, and the other part is located outside the chute 12. The chute 12 is inclined relative to the vertical direction, and the bottom of the chute 12 communicates with the outside world. A limiting block 5 is arranged in the chute 12 , and the limiting block 5 is fixed on the inner wall of the chute 12 by screws 6 . The head of screw 6 faces obliquely downward. When the limit block 5 is not installed, the fixed die elastic block 3 can be freely loaded into the chute 12 or removed from the chute 12 . During the assembly and disassembly process of the limiting block 5, when the tool goes deep into the chute 12 to screw the screw 6, the groove wall of the chute 12 is prevented from blocking the tool, so that the installation and replacement of the fixed mold block 3 are more convenient. As a preferred solution, as shown in Figure 4, the chute 12 is a dovetail groove, and the fixed mold elastic block 3 has a raised portion 31 matching the dovetail groove, and the fixed mold elastic block 3 slides more along the chute 12 through the dovetail groove. For stability; the limit block 5 is located in the chute 12 as a whole to avoid interference between the limit block 5 and other parts on the movable template 2 .

As shown in FIG. 3 , the inner end of the chute 12 has a receiving hole, and the corresponding position of the fixed die spring block 3 has a stepped surface. One end of the spring 4 is located in the receiving hole, and the other end is against the stepped surface. The spring 4 is installed between the bottom of the chute 12 and the fixed mold bullet 3, and the spring force of the spring 4 makes the fixed mold bullet 3 away from the die 11. In the actual processing and manufacturing process, a boss or a groove may be provided on the fixed-die spring block 3 to form a stepped surface on the fixed-die spring block 3 . By supporting and guiding the spring 4 through the receiving hole and the stepped surface, the spring 4 can be prevented from being bent and deformed to the side, thereby prolonging the service life of the spring 4 . As shown in Figure 1, the upper surface of the movable template 2 can be in contact with the bottom surface of the fixed mold spring block 3, and the movable template 2 pushes the fixed mold spring block 3 to slide inward along the chute 12 during the mold clamping process of the movable mold and the fixed mold to be able to contact with the concave mold. 11 against each other, in this process, the fixed mold bullet 3 has overcome the spring force of the spring 4. When the mold is closed, the fixed mold spring block 3 can be abutted against the die 11, and the position where the fixed die spring block 3 and the die 11 contact forms the contour required for forming an undercut. When opening the mold, a gap is formed between the fixed die elastic block 3 and the die 11 to facilitate the reverse buckling of the die 11 . The movement of the fixed-die spring block 3 is driven by the movable platen 2 without a separate driving device, and the movement of the fixed-die spring block 3 can well adapt to the state of the mold, thereby improving production efficiency.

The working principle of the fixed mold elastic block mechanism of the automobile lamp mask forming mold is: in the forming process of the automobile lamp mask, as shown in Figure 1, under the mold closing state, the fixed mold elastic block 3 slides inward and contacts with the concave mold 11 Against each other, the fixed mold spring block 3, the concave mold 11 and the punch 21 on the movable template 2 form a cavity suitable for the shape of the undercut on the automobile lamp mask, and the material enters the cavity and solidifies to form a cavity on the lamp mask. upside-down structure. As shown in Figure 2, when the mold is opened, during the withdrawal of the movable template 2, the fixed mold block 3 is out of contact with the die 11 under the action of the spring 4, so that the undercut can be separated from the die 11 and the fixed die block. 3, so that the automobile lamp mask can be separated from the die 11 smoothly.

Embodiment two:

The technical solution in this embodiment is basically the same as the technical solution in Embodiment 1, the difference is that in this embodiment, the movable template 2 has ejector pins corresponding to the fixed mold spring block 3, the movable mold and the fixed mold During the mold clamping process, the ejector pin pushes the fixed mold bullet 3 to slide inwardly along the chute 12 .

The specific embodiments described herein are only examples to illustrate the spirit of the present invention. Those skilled in the technical field to which the utility model belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the utility model or go beyond the appended claims defined range.

Although this article uses many terms such as fixed platen 1, concave die 11, chute 12, movable platen 2, punch 21, fixed die spring block 3, raised part 31, spring 4, limit block 5, screw 6, etc. , but does not exclude the possibility of using other terms. These terms are only used to describe and explain the essence of the utility model more conveniently; interpreting them as any kind of additional limitation is contrary to the spirit of the utility model.

Claims (8)

1. the fixed mould elastic block mechanism of an automobile lamp face shield mould, described mould comprises dynamic model and cover half, after described dynamic model and cover half matched moulds, be formed for the die cavity of moulding car light face shield, it is characterized in that, described cover half comprises solid plate (1), described solid plate (1) inner side has die (11), and described dynamic model comprises moving platen (2); This fixed mould elastic block mechanism comprises at least one fixed mould elastic block (3), on described solid plate (1), have and above-mentioned fixed mould elastic block (3) position and shape chute (12) one to one, in described chute (12), be provided with spring (4), described spring one end is resisted against chute (12) bottom, it is upper that the other end is resisted against fixed mould elastic block (3), and described fixed mould elastic block (3) can lean with die (11) along the inside slip of chute (12).

2. the fixed mould elastic block mechanism of automobile lamp face shield mould according to claim 1, it is characterized in that, described moving platen (2) upper surface can contact with fixed mould elastic block (3) bottom surface, and moving platen (2) described in described dynamic model and cover half matched moulds process promotes fixed mould elastic block (3) and inwardly slides along chute (12).

3. the fixed mould elastic block mechanism of automobile lamp face shield mould according to claim 1, it is characterized in that, on described moving platen (2), have and fixed mould elastic block (3) push rod one to one, push rod described in described dynamic model and cover half matched moulds process promotes fixed mould elastic block (3) and inwardly slides along chute (12).

4. according to the fixed mould elastic block mechanism of the automobile lamp face shield mould described in claim 1 or 2 or 3, it is characterized in that, described chute (12) below is connected with the external world, in described chute (12), be provided with limited block (5), described limited block (5) is fixed on the inwall of chute (12) by screw (6).

5. the fixed mould elastic block mechanism of automobile lamp face shield mould according to claim 4, is characterized in that, described chute (12) tilts with respect to vertical direction, and the head court of described screw (6) oliquely downward.

6. the fixed mould elastic block mechanism of automobile lamp face shield mould according to claim 4, it is characterized in that, described chute (12) is dovetail groove, has the lug boss (31) matching with above-mentioned dovetail groove on described fixed mould elastic block (3).

7. the fixed mould elastic block mechanism of automobile lamp face shield mould according to claim 4, it is characterized in that, described chute (12) the inner has accommodation hole, the position that described fixed mould elastic block (3) is corresponding has step surface, described spring (4) one end is positioned at accommodation hole, and the other end is resisted against on step surface.

8. the fixed mould elastic block mechanism of automobile lamp face shield mould according to claim 4, is characterized in that, described limited block (5) entirety is positioned at chute (12).