CN221641651U - Car lamp shade injection mold closing device - Google Patents

Abstract

The utility model relates to the technical field of injection molds, in particular to a clamping device of an injection mold of a lamp shade of a car lamp, which comprises an upper mold, a lower mold and a clamping mechanism, wherein the bottom of the upper mold is provided with a guide pillar body, and the top of the lower mold is provided with a guide pillar hole; the bottom of the upper die is provided with a lamp shade upper die, the front end, the rear end, the left end and the right end of the lamp shade upper die are provided with limiting blocks, and one side of each limiting block is provided with an ejector rod; a die groove is formed above the lower die, a lower die of the lampshade is arranged in the die groove, fastening grooves are formed in the front end, the rear end, the left end and the right end of the lower die of the lampshade, a sliding groove is formed in the lower die, and the fastening mechanism comprises a sliding block, a clamping block and a first spring; the sliding block is arranged in the sliding groove, the sliding block is provided with a jack, and the jack is matched with the ejector rod; the clamping block is arranged on one side of the sliding block, one end of the first spring is fixedly connected with the clamping block, and the other end of the first spring is fixedly connected to the bottom of the fastening groove. The utility model can automatically clamp the lower die of the lampshade, thereby improving the stability of the whole device and prolonging the service life of the whole device.

Description

Car lamp shade injection mold closing device

Technical Field

The utility model relates to the technical field of injection molds, in particular to a fastening device of an injection mold of a lamp shade of a car lamp.

Background

The injection mold is a tool for producing plastic products, and also a tool for endowing the plastic products with complete structures and precise dimensions, and the injection molding is a processing method used for mass production of parts with complex shapes.

Chinese patent CN213472097U discloses a car spare part injection mold close-up structure, including the bed die, the top swing joint of bed die has last mould lid, the four sides center department of going up the mould lid all is provided with fixed establishment, the four sides center department of bed die all fixed mounting has the fixed plate. According to the utility model, the fixing rod is inserted into the fixing through hole in the center of the fixing plate, the die cover is pressed downwards, the bottom of the vertical plate is contacted with the top of the fixing plate, the vertical plate slides on the fixing rod, the clamping spring is compressed, the stop block is moved upwards, the moving rod moves in the limiting cylinder, the reset spring is compressed, the fixing ring is rotated to be tightly fixed in the fixing groove, the inner part of the fixing ring is clamped on the outer surface of the fixing plate, the stop block is loosened, the reset spring resets the stop block, the fixing ring is fixed, a tool is not required to be used for disassembly, a bolt is not required, a phenomenon of sliding wire is not caused, and the fixing is convenient to be tightly closed during the fastening.

However, the comparison document has the following problems: in the long-term use process, the fixing structure is arranged on the outer side of the die, the service life is too low, abrasion is easy to cause, and the die is not beneficial to tightly closing.

Disclosure of utility model

To above-mentioned problem, provide a car light lamp shade injection mold closing device, in the downthehole removal of last mould, the ejector pin at lamp shade upper mould front and back left and right sides both ends inserts in the jack of slider, and wherein the ejector pin is certain inclination setting, and the direction of inclination setting is towards the lamp shade lower mould, the jack also is certain inclination setting, and the ejector pin drives the slider and is moving, and the clamp block presss from both sides tightly around the lamp shade lower mould through first spring pressfitting in the tight groove, accomplishes.

The utility model provides a clamping device of an injection mold of a lamp shade of a car lamp, which aims to solve the problems in the prior art, and comprises an upper mold, a lower mold and a clamping mechanism, wherein guide pillar bodies are arranged at four corners of the bottom of the upper mold, guide pillar holes are arranged at four corners of the top of the lower mold, and the guide pillar bodies are in clearance with the guide pillar holes; the bottom of the upper die is fixedly provided with a lamp shade upper die, the outer side walls of the lamp shade upper die are provided with limiting blocks, and one side, close to the lower die of the lamp shade, of each limiting rod is provided with a push rod; a die groove is formed above the lower die, a lower lamp shade die is arranged in the die groove, fastening grooves are formed in the outer side walls of the lower lamp shade die, sliding grooves are formed in the inner side walls of the die grooves, and the fastening mechanisms are arranged in the sliding grooves; the fastening mechanism comprises a sliding block, a clamping block and a first spring; the sliding block is arranged in the sliding groove in a sliding way, a jack is arranged on the sliding block, and the jack is in clearance fit with the ejector rod; the clamping block is arranged on one side of the sliding block, the clamping block and the sliding block are of an integrated structure, and the size of the clamping block is matched with that of the clamping groove; the first spring is arranged in the fastening groove, one end of the first spring is fixedly connected with the clamping block, and the other end of the first spring is fixedly connected to the bottom of the fastening groove.

Preferably, the device also comprises a buffer mechanism, wherein the buffer mechanism comprises a support frame, a buffer plate, a buffer column and a second spring; the supporting frames are arranged on two sides of the bottom of the lower die; the buffer plate is fixedly arranged between the support frames at two sides; the buffer column penetrates through the lower die and extends to the position above the buffer plate; the second spring is sleeved on the buffer column, one end of the second spring is connected to the bottom of the lower die, and the other end of the second spring is fixedly arranged at the top of the buffer plate.

Preferably, the buffer plate is provided with a limiting rod, one end of the limiting rod is fixedly arranged on the buffer plate, and the other end of the limiting rod penetrates through the lower die and extends into the lower die of the lampshade.

Preferably, the bottom of the upper die is provided with a plurality of lamp shade upper dies, and a plurality of lamp shade lower dies are arranged in the die grooves.

Preferably, the bottoms of the two sides of the sliding groove are provided with limiting grooves, the bottoms of the two sides of the sliding block are provided with wing plates, and the wing plates are in sliding fit with the limiting grooves.

Preferably, the chute is provided with an avoiding opening, and in the pressing process, the ejector rod penetrates through the jack and extends to the avoiding opening.

Preferably, one end of the limiting block, which is close to the upper lamp cover die, is provided with a first oblique angle, one side of the sliding block, which is far away from the lower lamp cover die, is provided with a second oblique angle, and when the limiting block moves downwards, the first oblique angle and the second oblique angle are in butt fit.

Preferably, the size of the limiting block is adapted to the sliding groove.

Compared with the prior art, the utility model has the beneficial effects that:

1. In the utility model, in the downward movement of the upper die, the ejector rods at the front, back, left and right ends of the upper die of the lamp cover are inserted into the insertion holes of the sliding blocks, wherein the ejector rods are arranged at a certain inclination angle, the direction of the inclination angle is towards the lower die of the lamp cover, the insertion holes are also arranged at a certain inclination angle, the ejector rods drive the sliding blocks to move, the clamping blocks are pressed in the clamping grooves through the first springs, and when the upper die is pressed above the lower die, the limiting blocks at the front, back, left and right sides of the upper die of the lamp cover are abutted in the sliding grooves to limit the sliding blocks, so that the clamping of the sliding blocks at the front, back, left and right sides to the lower die of the lamp cover is completed, and the forming efficiency and quality of the injection die are improved.

2. According to the utility model, the buffer mechanism is arranged, so that a buffer effect is provided in the pressing process of the upper die, the movement of the whole device caused by overlarge pressing force is avoided, the impact force transmitted to the lower die is buffered through the second spring, the stability of the whole device is maintained, and the molding efficiency and quality of the injection die are improved.

3. According to the utility model, the limiting grooves and the limiting blocks are arranged, so that the moving stability of the sliding blocks in the sliding grooves can be improved, the clamping blocks clamp the front side, the back side, the left side and the right side of the lower die of the lampshade in the pressing process, and the stability of the whole device in the running process is maintained.

Drawings

Fig. 1 is a schematic perspective view of a fastening device of an injection mold for a lamp cover of a vehicle lamp.

Fig. 2 is a schematic diagram showing the installation of a lamp shade lower die of a lamp shade injection mold fastening device.

Fig. 3 is a schematic installation view of a fastening mechanism of a fastening device of an injection mold of a lamp shade of a vehicle lamp.

Fig. 4 is a schematic diagram showing the mounting of the upper mold of the lamp cover injection mold fastening device.

Fig. 5 is a schematic diagram showing a perspective view of a lower mold of an injection mold fastening device for a lamp shade of a vehicle lamp.

Fig. 6 is a schematic diagram of the mounting of a stop lever of a lamp shade injection mold fastening device.

The reference numerals in the figures are: 1-upper die; 11-a guide post body; 12-upper die of the lampshade; 121-limiting blocks; 1211-a first bevel; 13-ejector rods; 2-lower die; 21-a guide post hole; 22-a mold groove; 23-a lower die of the lampshade; 231-a clamping groove; 24-sliding grooves; 241-limit groove; 242-avoiding port; 3-a slider; 31-jack; 32-wing plates; 33-a second bevel; 4-clamping blocks; 5-a first spring; 6-supporting frames; 7-a buffer plate; 71-a limit rod; 8-a buffer column; 9-a second spring.

Detailed Description

The utility model will be further described in detail with reference to the drawings and the detailed description below, in order to further understand the features and technical means of the utility model and the specific objects and functions achieved.

Referring to fig. 1 to 6, there is shown: the injection mold fastening device for the lamp shade of the car lamp comprises an upper mold 1, a lower mold 2 and a fastening mechanism, wherein guide pillar bodies 11 are arranged at four corners of the bottom of the upper mold 1, guide pillar holes 21 are arranged at four corners of the top of the lower mold 2, and the guide pillar bodies 11 are in clearance fit with the guide pillar holes 21; the bottom of the upper die 1 is fixedly provided with a lamp shade upper die 12, limiting blocks 121 are arranged on the outer side walls of the lamp shade upper die 12, and a push rod 13 is arranged on one side, close to the lamp shade lower die 23, of the limiting rod 71; a die groove 22 is formed above the lower die 2, a lower lamp shade die 23 is arranged in the die groove 22, fastening grooves 231 are formed in the outer side walls of the lower lamp shade die 23, sliding grooves 24 are formed in the inner side walls of the die groove 22, and the fastening mechanisms are arranged in the sliding grooves 24; the fastening mechanism comprises a sliding block 3, a clamping block 4 and a first spring 5; the sliding block 3 is arranged in the sliding groove 24 in a sliding way, the sliding block 3 is provided with an inserting hole 31, and the inserting hole 31 is in clearance fit with the ejector rod 13; the clamping block 4 is arranged on one side of the sliding block 3, the clamping block 4 and the sliding block 3 are of an integrated structure, and the size of the clamping block 4 is matched with that of the fastening groove 231; the first spring 5 is disposed in the fastening groove 231, one end of the first spring 5 is fixedly connected with the clamping block 4, and the other end is fixedly connected with the bottom of the fastening groove 231.

In actual operation, the upper die 1 is matched with the guide post holes 21 at the top of the lower die 2 through the guide post bodies 11 arranged at the four corners of the bottom, and the upper die 1 is pressed downwards. In the press-fit process, the lamp mold material enters the lamp lower mold 23, and injection molding is performed through the lamp shade upper mold 12 press-fitted downward. In the downward movement of the upper die 1, the ejector rods 13 at the front end, the rear end, the left end and the right end of the upper die 12 of the lamp cover are inserted into the insertion holes 31 of the sliding block 3, wherein the ejector rods 13 are arranged at a certain inclination angle, the direction of the inclination angle is towards the lower die 23 of the lamp cover, the insertion holes 31 are also arranged at a certain inclination angle, in the insertion process of the ejector rods 13, the ejector rods 13 are arranged at an inclination angle to drive the sliding block 3 to move in the sliding groove 24 towards the lower die 23 of the lamp cover, in the moving process of the sliding block 3, the clamping blocks 4 are pressed in the clamping groove 231 through the first springs 5, when the upper die 1 is pressed above the lower die 2, the limiting blocks 121 at the front end, the rear end, the left end and the right end of the upper die 12 of the lamp cover are abutted in the sliding groove 24 to limit the sliding block 3, the clamping of the lower die 23 at the front end, the rear end, the left end and the right end of the sliding block 3 on the lamp cover are clamped, the downward pressing vibration of the lower die 23 is reduced, the downward pressing vibration is caused, the vibration of the lower die 23 is offset, so that the quality of the injection molding is affected, in the injection molding is maintained, and in the process of the internal structure vibration of the injection molding can be reduced through the first springs 5 in the injection molding process, and the internal structure is stable in the injection molding process. After injection molding is completed, the upper die 1 moves upwards, the ejector rod 13 is separated, the sliding block 3 moves towards a direction away from the lower die 23 of the lampshade under the reverse acting force of the first spring 5, loosening is completed, and working efficiency is improved.

Referring to fig. 1 and 6, there is shown: the buffer mechanism comprises a support frame 6, a buffer plate 7, a buffer column 8 and a second spring 9; the supporting frames 6 are arranged at two sides of the bottom of the lower die 2; the buffer plate 7 is fixedly arranged between the support frames 6 at the two sides; the buffer column 8 penetrates through the lower die 2 and extends to the position above the buffer plate 7; the second spring 9 is sleeved on the buffer column 8, one end of the second spring 9 is connected to the bottom of the lower die 2, and the other end of the second spring is fixedly arranged at the top of the buffer plate 7.

Through setting up buffer gear, at last mould 1 pushes down the in-process, provide the cushioning effect, avoid pressfitting force too big to lead to whole device to remove, buffer the impact force that transmits to bed die 2 through second spring 9, maintain whole device's stability, improve injection mold shaping efficiency and quality.

Referring to fig. 5 and 6, it is shown that: the buffer plate 7 is provided with a limiting rod 71, one end of the limiting rod 71 is fixedly arranged on the buffer plate 7, and the other end of the limiting rod 71 penetrates through the lower die 2 to extend into the lower die 23 of the lampshade.

Through setting up gag lever post 71, improve lamp shade lower mould 23 and install at stability, prevent that lamp shade lower mould 23 from appearing the skew at pressfitting in-process, provide injection moulding's quality.

Referring to fig. 2 and fig. 4 shows: the bottom of the upper die 1 is provided with a plurality of lamp shade upper dies 12, and a plurality of lamp shade lower dies 23 are arranged in the die grooves 22.

By providing the plurality of lamp shade upper molds 12 and the lamp shade lower molds 23, the efficiency of injection molding is improved.

Referring to fig. 3 and 5, it is shown that: limiting grooves 241 are formed in the bottoms of the two sides of the sliding groove 24, wing plates 32 are arranged at the bottoms of the two sides of the sliding block 3, and the wing plates 32 are in sliding fit with the limiting grooves 241.

The stability of the sliding block 3 moving in the sliding groove 24 can be improved by arranging the limiting groove 241 and the wing plate 32, the clamping of the clamping block 4 to the front side, the rear side, the left side and the right side of the lower lamp cover die 23 in the pressing process is improved, and the stability of the whole device in the running process is maintained.

Reference is made to the drawings 5, as follows: the chute 24 is provided with an avoiding opening 242, and during the pressing process, the ejector rod 13 extends to the avoiding opening 242 through the jack 31.

Through setting up dodging the mouth 242, in the pressfitting in-process, ejector pin 13 runs through jack 31 of slider 3 and inserts to dodging mouthful 242 department, better drive slider 3 and remove in spout 24, improve the tight piece 4 to the tight process of clamp of lamp shade lower mould 23, improve the stability of whole device operation.

Referring to fig. 3 and 4, it is shown that: the end of the limiting block 121, which is close to the upper lamp cover die 12, is provided with a first bevel angle 1211, one side of the sliding block 3, which is far away from the lower lamp cover die 23, is provided with a second bevel angle 33, and when the limiting block 121 moves downwards, the first bevel angle 1211 and the second bevel angle 33 are in abutting fit.

Through setting up first oblique angle 1211 and second oblique angle 33, stopper 121 can not lead to the fact the damage to slider 3 when moving down at pressfitting in-process, laminating mutually through first oblique angle 1211 and second oblique angle 33 improves slider 3 removal's stability, simultaneously, improves stopper 121 to slider 3 spacing precision.

The limiting block 121 is sized to fit the chute 24.

The foregoing examples merely illustrate one or more embodiments of the utility model, which are described in greater detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of the utility model should be assessed as that of the appended claims.

Claims (8)

1. The utility model provides a car light lamp shade injection mold tight fitting device, includes upper mould (1), bed die (2) and tight mechanism, four corners in upper mould (1) bottom are provided with guide pillar body (11), four corners in bed die (2) top are provided with guide pillar hole (21), guide pillar body (11) and guide pillar hole (21) clearance fit;

The lamp shade is characterized in that a lamp shade upper die (12) is fixedly arranged at the bottom of the upper die (1), limiting blocks (121) are arranged on the outer side walls of the lamp shade upper die (12), and a push rod (13) is arranged on one side, close to a lamp shade lower die (23), of each limiting block (121);

A die groove (22) is formed above the lower die (2), a lampshade lower die (23) is arranged in the die groove (22), fastening grooves (231) are formed in the outer side walls of the lampshade lower die (23), sliding grooves (24) are formed in the inner side walls of the die groove (22), and the fastening mechanisms are arranged in the sliding grooves (24);

The fastening mechanism comprises a sliding block (3), a clamping block (4) and a first spring (5);

The sliding block (3) is arranged in the sliding groove (24) in a sliding way, the sliding block (3) is provided with an inserting hole (31), and the inserting hole (31) is in clearance fit with the ejector rod (13);

The clamping block (4) is arranged on one side of the sliding block (3), the clamping block (4) and the sliding block (3) are of an integrated structure, and the size of the clamping block (4) is matched with that of the clamping groove (231);

The first spring (5) is arranged in the clamping groove (231), one end of the first spring (5) is fixedly connected with the clamping block (4), and the other end of the first spring is fixedly connected with the bottom of the clamping groove (231).

2. The vehicle lamp shade injection mold fastening device according to claim 1, further comprising a buffer mechanism, wherein the buffer mechanism comprises a support frame (6), a buffer plate (7), a buffer column (8) and a second spring (9);

the supporting frames (6) are arranged on two sides of the bottom of the lower die (2);

The buffer plate (7) is fixedly arranged between the support frames (6) at the two sides;

The buffer column (8) penetrates through the lower die (2) and extends to the upper part of the punching plate (7);

The second spring (9) is sleeved on the buffer column (8), one end of the second spring (9) is connected to the bottom of the lower die (2), and the other end of the second spring is fixedly arranged at the top of the buffer plate (7).

3. The car lamp shade injection mold fastening device according to claim 2, wherein a limiting rod (71) is arranged on the buffer plate (7), one end of the limiting rod (71) is fixedly arranged on the buffer plate (7), and the other end of the limiting rod (71) penetrates through the lower mold (2) to extend into the lamp shade lower mold (23).

4. The fastening device of the injection mold of the lamp shade of the car lamp according to claim 1, wherein a plurality of upper molds (12) of the lamp shade are arranged at the bottom of the upper mold (1), and a plurality of lower molds (23) of the lamp shade are arranged in the mold groove (22).

5. The car light lamp shade injection mold fastening device according to claim 1, wherein limiting grooves (241) are formed in the bottoms of the two sides of the sliding groove (24), wing plates (32) are arranged in the bottoms of the two sides of the sliding block (3), and the wing plates (32) are in sliding fit with the limiting grooves (241).

6. The fastening device of the injection mold of the lamp shade of the vehicle lamp according to claim 1, wherein the chute (24) is provided with an avoiding opening (242), and the ejector rod (13) penetrates through the jack (31) to extend to the avoiding opening (242) in the pressing process.

7. The fastening device of the injection mold of the lamp shade of the vehicle lamp according to claim 1, wherein a first oblique angle (1211) is arranged at one end, close to the upper mold (12) of the lamp shade, of the limiting block (121), a second oblique angle (33) is arranged at one side, far away from the lower mold (23) of the lamp shade, of the sliding block (3), and when the limiting block (121) moves downwards, the first oblique angle (1211) and the second oblique angle (33) are in butt fit.

8. The vehicle lamp shade injection mold fastening device according to claim 1, wherein the limiting block (121) is sized to fit the chute (24).