Automobile lamp shell injection mold with lateral ejection mechanism

Abstract

The utility model provides an automobile lamp shell injection mold with a lateral ejection mechanism, and belongs to the technical field of molds. The mold comprises a lower mold plate, two forming areas are symmetrically arranged on the lower mold plate, two forming cavities which are in a cambered surface shape and are symmetrically arranged are formed in each forming area, a base is arranged at the bottom of the lower mold plate, and two inclined lateral ejection mechanisms corresponding to the two forming areas respectively are symmetrically arranged on the two sides of the base. Four forming cavities in the two forming areas can form four automobile lamp shells in a one-time injection molding mode, two inclined lateral ejection mechanisms arranged on the two sides of the base can independently eject products in the two forming areas at inclined angles, and the inclined lateral ejection mechanisms are matched with the forming cavities in gradient. And a more simplified ejector rod structure can be adopted when the automobile lamp shell is ejected out.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds and relates to an injection mold for an automobile lamp housing with a lateral ejection mechanism. Background Art

[0002] Automobile headlight housings are generally injection molded. In the existing technology, the ejection mechanism of the automobile headlight housing mold is always set vertically, and the product is ejected by vertical thrust. However, since the automobile headlight housing is curved and the molding cavity is inclined on the mold, the use of vertical thrust to eject the product is likely to cause damage to the headlight housing. The solution in the existing technology is to increase the number of ejector pins to ensure uniform force at all positions of the product, which makes the ejector pin structure more complicated. Therefore, it is necessary to design a mold with an ejection mechanism with a simpler ejector pin structure design.

[0003] For example, a Chinese patent discloses an injection mold for an automobile lamp housing [application number: 202111524367.X], which includes an upper mold and a lower mold arranged opposite to the upper mold, the lower surface of the upper mold is provided with a first parting surface, and two concave recesses corresponding to the upper surface of the automobile lamp housing are mirrored on the first parting surface, the upper surface of the lower mold is provided with a second parting surface, and a mold convex matching the corresponding recessed recess is provided on the second parting surface, the first parting surface is also provided with a first row position groove, and the second parting surface is also provided with a second row position groove, the first row position groove and the second row position groove are arranged opposite to each other to form a side mold groove, a side mold movably engaged with the mold convex is provided in the side mold groove, and a first insert mold movably embedded with the mold convex is also provided on the circumference of the mold convex. Utility Model Content

[0004] The purpose of the utility model is to solve the above problems and provide an injection mold for an automobile lamp housing with a lateral ejection mechanism.

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

[0006] An injection mold for an automobile lamp housing with a lateral ejection mechanism includes a lower template, wherein two molding areas are symmetrically arranged on the lower template, each molding area has two arc-shaped and symmetrically arranged molding cavities, and a base is provided at the bottom of the lower template. Two oblique lateral ejection mechanisms are symmetrically provided on both sides of the base, respectively corresponding to the two molding areas.

[0007] In the above-mentioned injection mold for automobile lamp housing with lateral ejection mechanism, the molding area is provided with an outer surrounding insert embedded in the lower mold plate and two molding inserts corresponding to the two molding cavities respectively.

[0008] In the above-mentioned automobile lamp housing injection mold with a lateral ejection mechanism, the inclined lateral ejection mechanism includes an ejection cavity arranged between the base and the lower template, an inclined ejector plate inclined toward the center of the lower template is arranged in the ejection cavity, and an inclined ejector structure adapted to the arc surface of the molding cavity is provided on the inclined ejector plate. It also includes an ejector plate drive assembly arranged on the lower template and connected to the inclined ejector plate.

[0009] In the above-mentioned automobile lamp housing injection mold with a lateral ejection mechanism, the inclined ejector structure includes three inclined ejector blocks arranged in staggered layers along the circumference of the molding insert, and the inclined ejector blocks are fixedly connected to the inclined ejector plate through inclined ejector rods perpendicular to the inclined ejector plate.

[0010] In the above-mentioned automobile lamp housing injection mold with a lateral ejection mechanism, the ejector plate drive assembly includes two linear drivers fixed on both sides of the lower mold plate, the output shaft of the linear driver is arranged perpendicular to the inclined ejector plate and the end of the output shaft is fixedly connected to the inclined ejector plate.

[0011] In the above-mentioned injection mold for the automobile lamp housing with a lateral ejection mechanism, a tilted ejector plate moving positioning structure is further provided on the base.

[0012] In the above-mentioned injection mold for the automobile lamp housing with a lateral ejection mechanism, the inclined top plate moving positioning structure includes a sensor fixing plate, the center line of the sensor fixing plate is perpendicular to the inclined top plate, and a positioning sensor is provided at each end of the sensor fixing plate. An L-shaped positioning rod is fixedly connected to the inclined top plate, and the end of the L-shaped positioning rod is located between the two positioning sensors.

[0013] In the above-mentioned automobile lamp housing injection mold with a lateral ejection mechanism, the positioning sensor is a pressure sensor.

[0014] In the above-mentioned injection mold for the automobile lamp housing with a lateral ejection mechanism, the outer surrounding insert is detachably fixed to the lower mold plate by screws.

[0015] In the above-mentioned injection mold for the automobile lamp housing with a lateral ejection mechanism, the bottom of the molding insert is integrally formed with an inclined connecting portion, which is parallel to the moving direction of the inclined top plate. The connecting portion passes through the inclined top plate and is fixed to the base by a number of screws. The bottom of the molding insert is fixed to the lower template by a number of screws.

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

[0017] 1. A total of four molding cavities in the two molding areas can be injection molded into four automobile lamp housings at one time. The two inclined side ejection mechanisms set on both sides of the base can independently eject the products in the two molding areas at an oblique angle. The inclined side ejection mechanisms are adapted to the inclination of the molding cavities, so that a simpler ejector rod structure can be used when ejecting the lamp housing.

[0018] 2. The top plate driving assembly can drive the inclined ejector rod to move obliquely upward in the inclined direction, thereby applying an oblique upward thrust to the lamp housing through the simplified inclined ejector structure to eject the product.

[0019] Other advantages, objectives and features of the present invention will be reflected 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 overall structure of the lower template;

[0021] Figure 2 It is a cross-sectional view of the lower template;

[0022] Figure 3 It is a schematic diagram of the local structure of the lower template;

[0023] Figure 4 It is a schematic diagram of the internal structure of the lower template;

[0024] Figure 5 It is a structural diagram of the inclined lateral ejection mechanism.

[0025] In the figure, the lower template 1, the molding area 2, the molding cavity 3, the base 4, the inclined lateral ejection mechanism 5, the outer surrounding insert 6, the molding insert 7, the ejection cavity 8, the inclined ejector plate 9, the inclined ejector block 10, the inclined ejector rod 11, the linear drive 12, the sensor fixing plate 13, the positioning sensor 14, the L-shaped positioning rod 15, and the connecting part 16. DETAILED DESCRIPTION

[0026] like Figure 1-Figure 5 As shown, an injection mold for an automobile lamp housing with a lateral ejection mechanism includes a lower template 1, on which two molding areas 2 are symmetrically arranged, each molding area 2 has two arc-shaped and symmetrically arranged molding cavities 3, a base 4 is provided at the bottom of the lower template 1, and two oblique lateral ejection mechanisms 5 are symmetrically provided on both sides of the base 4, which are respectively arranged corresponding to the two molding areas 2.

[0027] In the present invention, a total of four molding cavities in the two molding areas can be injection molded into four automobile lamp shells at one time. The two inclined lateral ejection mechanisms 5 arranged on both sides of the base can independently eject the products in the two molding areas at an oblique angle. The inclined lateral ejection mechanisms 5 are adapted to the inclination of the molding cavity, so that a simpler ejector rod structure can be used when ejecting the lamp shell.

[0028] Specifically, the molding area 2 is provided with an outer surrounding insert 6 embedded in the lower mold plate 1 and two molding inserts 7 corresponding to the two molding cavities 3 respectively.

[0029] Specifically, the inclined lateral ejection mechanism 5 includes an ejection cavity 8 disposed between the base 4 and the lower mold plate 1. Within this cavity 8 is a slanted ejector plate 9, angled toward the center of the lower mold plate 1. This ejector plate 9 features a slanted ejection structure that aligns with the curved surface of the molding cavity 3. The mechanism also includes an ejector plate drive assembly, mounted on the lower mold plate 1 and connected to the slanted ejector plate 9. This drive assembly drives the ejector rod to move diagonally upward, thereby applying an upward thrust to the lamp housing through the simplified slanted ejection structure to eject the product.

[0030] Specifically, the inclined ejector structure includes three inclined ejector blocks 10 arranged in staggered layers along the circumference of the molding insert 7. These inclined ejector blocks 10 are fixed to the inclined ejector plate 9 via inclined ejector rods 11, which are perpendicular to the inclined ejector plate 9. When the inclined ejector plate moves, the inclined ejector rods drive the three inclined ejector blocks to exert an upward thrust on the product, separating it from the lower mold plate. Compared to ejector mechanisms in the prior art, the inclined ejector structure of this application is simpler and has lower design and manufacturing costs.

[0031] Specifically, the roof drive assembly includes two linear actuators 12 fixed to either side of the lower mold plate 1. The output shafts of the linear actuators 12 are perpendicular to the inclined roof plate 9, and the ends of the output shafts are fixedly connected to the inclined roof plate 9. The two linear actuators operate synchronously to drive the inclined roof plate to move diagonally along the inclined direction.

[0032] Those skilled in the art should understand that the linear drive may be an oil cylinder, an air cylinder or a linear motor, etc.

[0033] Preferably, the base 4 is further provided with a movable positioning structure for an inclined top plate, which can position the movement of the inclined top plate to prevent the inclined top plate from moving too far. The movable positioning structure for the inclined top plate includes a sensor fixing plate 13, the center line of which is perpendicular to the inclined top plate 9. A positioning sensor 14 is provided at each end of the sensor fixing plate 13. An L-shaped positioning rod 15 is fixedly connected to the inclined top plate 9, and the end of the L-shaped positioning rod 15 is located between the two positioning sensors 14. When the inclined top plate moves, it can drive the L-shaped positioning rod to move. When the L-shaped positioning rod and the positioning sensor are at odds with each other, it indicates that the inclined top plate has moved into position.

[0034] Specifically, the positioning sensor 14 is a pressure sensor.

[0035] Preferably, the outer surrounding insert 6 is detachably fixed to the lower template 1 by screws.

[0036] Specifically, an inclined connecting portion 16 is integrally formed at the bottom of the forming insert 7. The connecting portion 16 is parallel to the moving direction of the inclined top plate 9. The connecting portion 16 passes through the inclined top plate 9 and is fixed to the base 4 by a number of screws. The bottom of the forming insert 7 is fixedly connected to the lower template 1 by a number of screws.

[0037] The working principle of the present invention is as follows: a total of four molding cavities in two molding areas can be injection molded into four automobile lamp housings at one time. Two inclined lateral ejection mechanisms 5 provided on both sides of the base can independently eject the products in the two molding areas at an oblique angle. The inclined lateral ejection mechanisms 5 are adapted to the inclination of the molding cavities, so that a simpler ejector rod structure can be used when ejecting the automobile lamp housings.

[0038] The lift plate drive assembly can drive the inclined ejector rod to move obliquely upward in an inclined direction, thereby applying an oblique upward thrust to the lamp housing through the simplified inclined ejector structure to eject the product. When the inclined ejector plate moves, the inclined ejector rod drives the three inclined ejector blocks to apply an oblique upward thrust to the product, thereby separating the product from the lower template. Compared with the ejection mechanism in the prior art, the inclined ejector structure in this application has a simpler structure and lower design and manufacturing costs. The synchronous action of the two linear actuators can drive the inclined ejector plate to move obliquely in the inclined direction.

[0039] The inclined top plate movement positioning structure can position the movement of the inclined top plate to prevent the inclined top plate from moving too far. When the inclined top plate moves, it can drive the L-shaped positioning rod to move. When the L-shaped positioning rod and the positioning sensor are against each other, it indicates that the inclined top plate has moved into place.

[0040] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0041] Although this article uses the punching block 10, punching frame 11, punching rod 12, synchronous plate 13, detachable structure 14, stamping structure 15, clamping block 16, bolt 17, rotating motor 18, guide block 19, vertical slide bar 20, eccentric block 21, rotating rod 22, partition 23, upper cavity 24, lower cavity 25, buffer spring 26, sliding hole 27, slide groove 28, disc 29, anti-collision strip 30, abutment frame 31, limit ring 32, abutment ring 33, frame 100, quilting device 101, quilting needle 102, 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 an automobile lamp housing with a lateral ejection mechanism, comprising a lower mold plate (1), characterized in that: Two forming areas (2) are symmetrically arranged on the lower template (1), and each forming area (2) has two arc-shaped and symmetrically arranged forming cavities (3). A base (4) is provided at the bottom of the lower template (1), and two oblique side ejection mechanisms (5) are symmetrically provided on both sides of the base (4), which are respectively arranged corresponding to the two forming areas (2).

2. The automobile lamp housing injection mold with a lateral ejection mechanism according to claim 1, characterized in that: The molding area (2) is provided with an outer surrounding insert (6) embedded in the lower template (1) and two molding inserts (7) corresponding to the two molding cavities (3) respectively.

3. The automobile lamp housing injection mold with a lateral ejection mechanism according to claim 2, characterized in that: The inclined lateral ejection mechanism (5) includes an ejection cavity (8) arranged between the base (4) and the lower template (1), an inclined top plate (9) inclined toward the center of the lower template (1) is arranged in the ejection cavity (8), an inclined top structure adapted to the arc surface of the forming cavity (3) is arranged on the inclined top plate (9), and also includes a top plate driving assembly arranged on the lower template (1) and connected to the inclined top plate (9).

4. The automobile lamp housing injection mold with a lateral ejection mechanism according to claim 3, characterized in that: The inclined roof structure comprises three inclined roof blocks (10) arranged along the circumference of the forming insert (7) and in staggered layers. The inclined roof blocks (10) are fixedly connected to the inclined roof plate (9) via inclined roof rods (11) perpendicular to the inclined roof plate (9).

5. The automobile lamp housing injection mold with a lateral ejection mechanism according to claim 4, characterized in that: The top plate drive assembly includes two linear drivers (12) fixed on both sides of the lower template (1), the output shaft of the linear driver (12) is vertically arranged with the inclined top plate (9) and the end of the output shaft is fixedly connected with the inclined top plate (9).

6. The automobile lamp housing injection mold with a lateral ejection mechanism according to claim 5, characterized in that: The base (4) is also provided with an inclined top plate moving positioning structure.

7. The automobile lamp housing injection mold with a lateral ejection mechanism according to claim 6, characterized in that: The inclined top plate moving positioning structure includes a sensor fixing plate (13), the center line of the sensor fixing plate (13) is perpendicular to the inclined top plate (9), a positioning sensor (14) is provided at each end of the sensor fixing plate (13), an L-shaped positioning rod (15) is fixedly connected to the inclined top plate (9), and the end of the L-shaped positioning rod (15) is located between the two positioning sensors (14).

8. The automobile lamp housing injection mold with a lateral ejection mechanism according to claim 7, characterized in that: The positioning sensor (14) is a pressure sensor.

9. The automobile lamp housing injection mold with a lateral ejection mechanism according to claim 2, characterized in that: The outer surrounding insert (6) is detachably fixed to the lower template (1) by means of screws.

10. The automobile lamp housing injection mold with a lateral ejection mechanism according to claim 3, characterized in that: The bottom of the molding insert (7) is integrally formed with an inclined connecting portion (16), which is parallel to the moving direction of the inclined top plate (9). The connecting portion (16) passes through the inclined top plate (9) and is fixed to the base (4) by a plurality of screws. The bottom of the molding insert (7) is fixed to the lower template (1) by a plurality of screws.

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