Inclined core-pulling structure of automobile lamp

Abstract

The utility model provides an inclined core-pulling structure of an automobile lamp, which belongs to the technical field of injection molds and comprises a rack, a movable mold plate, a fixed mold plate, a side core, a convex mold, a movable mold insert, a fixed mold insert, a cylindrical pin, an inclined guide post, a wedge block, a side sliding block, a pull rod, a rotating shaft, a stop block and a telescopic spring. The guide part not only can press the wedge block from the upper end and limit the wedge block, but also can transversely move along the guide part when the wedge block is moved, and can play a role in guiding the wedge block when the wedge block is mounted and moved out, so that the phenomenon that a side sliding block of a loose core is clamped during mold closing and demolding is prevented, and the service life of the loose core is prolonged. The sliding block is meshed with the bottom of the wedge block and can be matched with the guide part at the upper end of the side sliding block to clamp the right side of the wedge block, so that the sliding block is prevented from moving backwards to run glue after the filling force of the plastic is greater than the weight of the sliding block during injection molding, and the injection molding quality is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an oblique core-pulling structure for automobile lamps. Background Art

[0002] Car lights are the outer shell of the car and are a type of auto parts. The outer shell of the car lights mainly protects the internal lights and prevents the internal bulbs from being damaged. The car light shell is often produced by injection molding.

[0003] Core pulling is an important demoulding structure in the mold. It plays an important role in the mold processing process such as injection molding and die casting. It can separate the core-shaped objects during injection molding or die casting.

[0004] It has been found in actual use that the existing injection mold core pulling structure has the following shortcomings:

[0005] When the existing core pulling mechanism is pulling the core, the wedge block needs to press the slider, and the positioning block is deep in the mold, so the slider needs to be separated from the wedge block before it can move outward. However, the filling force generated during injection molding will squeeze the slider and the wedge block outward, causing the slider and the wedge block to move. If the slider is forced to separate from the wedge block only by the sliding force of the slider, the side slider of the core pulling will be stuck, which will make demolding difficult. If demolding is forced, the wedge block will be damaged or broken, resulting in mold failure.

[0006] When the injection mold is closed, plastic will be filled inward. When the filling force of the plastic is greater than the weight of the slider, the slider will move backward, causing the mold to loosen and glue to leak.

[0007] Therefore, the present application provides an oblique core-pulling structure for automobile lamps to meet the demand. Utility Model Content

[0008] The utility model aims to solve the problems existing in the above-mentioned background technology and proposes an oblique core-pulling structure for automobile lamps.

[0009] The technical problem to be solved by the utility model is to provide an oblique core-pulling structure for automobile lamps to solve the problems of the existing oblique core-pulling structure for automobile lamps.

[0010] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0011] The invention relates to an oblique core-pulling structure for automobile lamps, comprising: a frame, a movable template, a fixed template, a side core, a punch, a movable mold insert, a fixed mold insert, a cylindrical pin, an oblique guide column, a wedge block, a side slider, a pull rod, a rotating shaft, a stopper and a telescopic spring. The movable template is installed on the left side of the frame, and the fixed template is installed on the right side of the frame. A side core is installed between the movable template and the fixed template. A punch is installed on the bottom of the side core. The movable mold insert is installed on the left side of the punch located at the side core, and the fixed mold insert is installed on the right side of the punch located at the side core. A cylindrical pin is installed on the outer end of the side core, an oblique guide column is installed inside the fixed template, and a wedge block is installed at the upper end of the fixed template located at the oblique guide column, a side slider is installed on the top of the side core, a pull rod is installed on the top of the frame, a stopper is installed at the upper end of the side of the side slider through the rotating shaft, and a telescopic spring is installed at the bottom of the stopper.

[0012] Preferably, the wedge block passes through the fixed template and extends laterally to the upper right end of the side sliding block.

[0013] Preferably, the cross-section of the wedge block is trapezoidal, a trapezoidal notch is provided on the right upper end surface of the side sliding block, and the wedge block fits with the right upper end surface of the side sliding block.

[0014] Preferably, a guide portion is provided on the right side of the side slider, and the guide portion extends laterally outward from the upper end corner of the right side of the side slider.

[0015] Preferably, the guide portion is in the shape of a rectangular strip, and the guide portion of the side sliding block is fitted on the top right side of the wedge block.

[0016] Preferably, the stopper is movably connected to the side sliding block via a rotating shaft, and the stopper extends laterally outward from the inner side of the side sliding block.

[0017] Preferably, the cross section of the stopper is trapezoidal, and the stopper is engaged with the right bottom of the wedge block.

[0018] Preferably, the telescopic spring is arranged vertically, and the other end of the telescopic spring is against the outer wall of the side sliding block.

[0019] Compared with the prior art, the utility model has at least the following beneficial effects:

[0020] 1. A guide part is provided on the right side of the side slider. The guide part can not only press the wedge block from the upper end to limit the wedge block, but also the wedge block can move laterally along the guide part when moving the wedge block. It can guide the wedge block when installing and removing the wedge block, preventing the side slider of the core pulling from getting stuck during mold closing and demolding, and effectively reducing the failure rate of the mold;

[0021] 2. When the wedge block is inserted from the side, it is stuck in the lower end of the guide part of the side slider. When moving, the bottom of the wedge block is against the stopper at the lower end. The stopper rotates through the rotating shaft and bites into the bottom of the wedge block. It can cooperate with the guide part at the upper end of the side slider to clamp the right side of the wedge block, so that the upper and lower ends of the side slider are restricted by the wedge block, which can limit the movement distance of the side slider and prevent the slider from moving backward and leaking the plastic when the filling force of the plastic is greater than the weight of the slider during injection molding, thereby effectively improving the quality of injection molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the specific connection structure of the side slider of the utility model;

[0025] Figure 3 This is a schematic diagram of the block structure of the utility model;

[0026] Figure 4 For the utility model Figure 1 A is an enlarged schematic diagram of the structure.

[0027] [reference numerals]

[0028] 1-frame; 2-movable platen; 3-fixed platen; 4-side core; 5-punch; 6-movable die insert; 7-fixed die insert; 8-cylindrical pin; 9-inclined guide column; 10-wedge block; 11-side slide block; 12-pull rod; 13-rotating shaft; 14-stop block; 15-telescopic spring; 1101-guide part.

[0029] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the attached claims. DETAILED DESCRIPTION

[0030] like Figure 1 , Figure 2 , Figure 3 and Figure 4The embodiment of the utility model provides an oblique core-pulling structure for automobile lights, comprising: a frame 1, a movable platen 2, a fixed platen 3, a side core 4, a punch 5, a movable mold insert 6, a fixed mold insert 7, a cylindrical pin 8, an oblique guide column 9, a wedge block 10, a side slider 11, a pull rod 12, a rotating shaft 13, a stopper 14 and a telescopic spring 15. The movable platen 2 is installed on the left side of the frame 1, the fixed platen 3 is installed on the right side of the frame 1, the side core 4 is installed between the movable platen 2 and the fixed platen 3, and the bottom of the side core 4 is installed. The punch 5 is located on the left side of the side core 4 and is installed with a movable mold insert 6. The punch 5 is located on the right side of the side core 4 and is installed with a fixed mold insert 7. The outer end of the side core 4 is installed with a cylindrical pin 8. The interior of the fixed mold plate 3 is installed with an inclined guide column 9. The fixed mold plate 3 is located at the upper end of the inclined guide column 9 and is installed with a wedge block 10. The top of the side core 4 is installed with a side slider 11. The top of the frame 1 is installed with a pull rod 12. A stopper 14 is installed at the upper end of the side of the side slider 11 through a rotating shaft 13, and a telescopic spring 15 is installed at the bottom of the stopper 14.

[0031] In this embodiment, the wedge block 10 extends transversely through the fixed template 3 to the upper right end of the side slider 11. By inserting the wedge block 10 transversely, it can lie across the upper right end of the side slider 11 to limit the side slider 11.

[0032] In this embodiment, the cross-section of the wedge block 10 is trapezoidal in shape, a trapezoidal notch is provided on the right upper end face of the side slider 11, and the wedge block 10 fits with the right upper end face of the side slider 11. After the wedge block 10 extends from the side, it can rest against the right upper end face of the side slider 11.

[0033] In this embodiment, a guide portion 1101 is provided on the right side of the side slider 11, and the guide portion 1101 extends laterally outward from the upper right end corner of the side slider 11. By providing the guide portion 1101, the guide portion 1101 can not only press the wedge block 10 from the upper end to limit the wedge block 10, but also when the wedge block 10 is moved, the wedge block 10 can move laterally along the guide portion 1101, which can guide the wedge block 10 when installing and removing the wedge block 10, thereby preventing the side slider 11 from getting stuck when the core is pulled out during mold closing and demolding, and effectively reducing the failure rate of the mold.

[0034] In this embodiment, the guide portion 1101 is in the shape of a rectangular strip, and the guide portion 1101 of the side slider 11 is attached to the top right side of the wedge block 10 to hold the wedge block 10 in place.

[0035] In this embodiment, the stopper 14 is movably connected to the side slider 11 through the rotating shaft 13, and the stopper 14 extends laterally outward from the inner side of the side slider 11. When the wedge block 10 is inserted from the side, the wedge block 10 is inserted into the lower end of the guide portion 1101 of the side slider 11. When moving, the bottom of the wedge block 10 abuts against the stopper 14 at the lower end. The stopper 14 rotates through the rotating shaft 13 and bites into the bottom of the wedge block 10.

[0036] In this embodiment, the cross-section of the stopper 14 is trapezoidal, and the stopper 14 is engaged with the bottom right side of the wedge block 10. The stopper 14 is engaged with the bottom right side of the wedge block 10 and can cooperate with the guide portion 1101 at the upper end of the side slider 11 to clamp the right side of the wedge block 10, so that the upper and lower ends of the side slider 11 are restricted by the wedge block 10, which can limit the movement distance of the side slider 11 and prevent the slider from moving backward and leaking the plastic when the filling force of the plastic is greater than the weight of the slider during injection molding, thereby effectively improving the quality of injection molding.

[0037] In this embodiment, the telescopic spring 15 is vertically arranged, and the other end of the telescopic spring 15 is against the outer wall of the side slide block 11 . The vertically arranged telescopic spring 15 can provide support for the stopper 14 .

Claims

1. An oblique core-pulling structure for automobile lamps, characterized in that: include: A frame (1), a movable die plate (2), a fixed die plate (3), a side core (4), a punch (5), a movable die insert (6), a fixed die insert (7), a cylindrical pin (8), an inclined guide column (9), a wedge block (10), a side slide block (11), a pull rod (12), a rotating shaft (13), a stopper (14) and a telescopic spring (15); a movable die plate (2) is installed on the left side of the frame (1); a fixed die plate (3) is installed on the right side of the frame (1); a side core (4) is installed between the movable die plate (2) and the fixed die plate (3); a punch (5) is installed at the bottom of the side core (4); the punch (5) is located at the side core (4 ) is installed with a movable mold insert (6) on the left side, the punch (5) is installed with a fixed mold insert (7) on the right side of the side core (4), the outer end of the side core (4) is installed with a cylindrical pin (8), the interior of the fixed mold plate (3) is installed with an inclined guide column (9), the fixed mold plate (3) is installed with a wedge block (10) at the upper end of the inclined guide column (9), the top of the side core (4) is installed with a side slider (11), the top of the frame (1) is installed with a pull rod (12), the upper end of the side of the side slider (11) is installed with a stopper (14) through a rotating shaft (13), and the bottom of the stopper (14) is installed with a telescopic spring (15).

2. The oblique core-pulling structure of the automobile lamp according to claim 1, characterized in that: The wedge block (10) penetrates the fixed template (3) and extends transversely to the upper right end of the side sliding block (11).

3. The oblique core-pulling structure of the automobile lamp according to claim 1 is characterized in that: The cross section of the wedge block (10) is trapezoidal in shape, the upper right end surface of the side slide block (11) is provided with a trapezoidal notch, and the wedge block (10) fits with the upper right end surface of the side slide block (11).

4. The oblique core-pulling structure of the automobile lamp according to claim 1, characterized in that: A guide portion (1101) is provided on the right side of the side slider (11), and the guide portion (1101) extends outwardly from the upper corner of the right side of the side slider (11).

5. The oblique core-pulling structure of the automobile lamp according to claim 4 is characterized in that: The guide portion (1101) is in the shape of a rectangular strip, and the guide portion (1101) of the side sliding block (11) is fitted on the top right side of the wedge block (10).

6. The oblique core-pulling structure of the automobile lamp according to claim 1, characterized in that: The stopper (14) is movably connected to the side slide block (11) via the rotating shaft (13), and the stopper (14) extends laterally outward from the inside of the side slide block (11).

7. The oblique core-pulling structure of the automobile lamp according to claim 1, characterized in that: The cross section of the stopper (14) is trapezoidal in shape, and the stopper (14) is engaged with the right bottom of the wedge block (10).

8. The oblique core-pulling structure of the automobile lamp according to claim 1, characterized in that: The telescopic spring (15) is arranged vertically, and the other end of the telescopic spring (15) abuts against the outer wall of the side sliding block (11).

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