CN212498783U - Mold for cutting off pouring gate - Google Patents

Abstract

The utility model relates to a cut off mould of runner, including terrace die and die, the die cavity between terrace die and the die, the die cavity intercommunication has the runner, the die cavity below is equipped with the ejecting part one that is used for loosing core and ejecting to the product in the die cavity, the terrace die below is equipped with the bottom plate, be equipped with down the push pedal on the bottom plate, ejecting part one sets up on down the push pedal, form the slip chamber between bottom plate and the lower push pedal, it is equipped with the sliding block to slide in the slip chamber, be equipped with the elastic component on the sliding block, the other end of elastic component supports down the push pedal, the sliding block both sides extend there is the dog, be fixed with the stopper with dog 17 complex on the lower push pedal, be equipped with the clearance between dog and the stopper, be; the device also comprises a driving component for driving the lower push plate to move up and down. The utility model discloses simple structure has realized the function that a plurality of runners cut off simultaneously, has saved the time of pruning the runner, has improved efficiency, has saved the cost.

Description

Mold for cutting off pouring gate

Technical Field

The utility model relates to the technical field of mold, especially, relate to a cut off mould of runner.

Background

Automobile radiator grilles are generally produced by adopting a mold injection molding mode. In the production process of a product, the die is firstly closed, then the injection molding is carried out through the flow channel, the product is molded and demoulded, in order to ensure the surface quality of the automobile radiator grille, glue is fed into multiple points at the bottom of the connecting rib, redundant plastic needs to be trimmed manually, and the trimming workload is large.

SUMMERY OF THE UTILITY MODEL

The utility model provides a mould for cutting off pouring gate, which comprises a male mould and a female mould, wherein the male mould and the female mould are matched to form a cavity, the cavity is communicated with a flow passage, a first ejection part for pulling core and ejecting products in the cavity is arranged below the cavity, a bottom plate is arranged below the male mould, a lower push plate is arranged on the bottom plate, the first ejection part is arranged on the lower push plate, a sliding cavity is formed between the bottom plate and the lower push plate, a sliding block is arranged in the sliding cavity in a sliding way, an elastic part is arranged on the sliding block, the other end of the elastic part is propped against the lower push plate, two sides of the sliding block are extended with a stop block, a limit block matched with the stop block is fixed on the lower push plate, a gap is arranged between the stop block and the limit block, and the limit block is used for driving the sliding block to slide up, the flow channel is positioned on the second ejection part; the device also comprises a driving component for driving the lower push plate to move up and down.

Preferably, the male die is fixed to the base plate by a fixing plate.

Furthermore, the first ejection part comprises a first inclined ejector used for pulling a core of a product in a cavity, a first straight ejector used for ejecting the product in the cavity and an inclined ejector sliding seat fixedly arranged on the lower push plate, the first inclined ejector is arranged on the inclined ejector sliding seat in a sliding mode through a first inclined ejector guide rod, and the first straight ejector is fixed on the lower push plate through a first straight ejector guide rod. The first pitched roof is used for pulling the core of the product, and slides on the sliding seat of the pitched roof, and the sliding seat of the pitched roof is obliquely arranged. And the straight ejection I is used for ejecting the product which is ejected obliquely and subjected to core pulling.

Preferably, the second ejection component comprises a sliding seat fixedly arranged on the sliding block, a second inclined ejector used for performing core pulling on the flow channel, and a second straight ejector used for ejecting the flow channel, the second inclined ejector is arranged on the sliding seat in a sliding manner through a second inclined ejector guide rod, and the second straight ejector is fixed on the sliding block through a second straight ejector guide rod.

Furthermore, a material pulling rod for ejecting the flow channel is fixed on the sliding block.

Preferably, the flow channel is arranged in the second inclined top. The runner passes through the second inclined top and is communicated with the cavity. And obliquely ejecting two pairs of runners for core pulling, and directly ejecting the injection molding materials of the two pairs of runners after core pulling is finished.

Furthermore, still be fixed with the guide bar on the push pedal down, seted up on the sliding block with the guide way of guide bar cooperation direction, the sliding direction of sliding block with push pedal motion direction is unanimous down. The cooperation of guide bar and guide way makes the slip direction of sliding block unanimous with push down the push down board direction of motion, has restricted the direction of motion of sliding block.

Preferably, the driving part is an oil cylinder, and a piston of the oil cylinder is fixedly connected with the lower push plate.

Further, the elastic component is a spring.

Has the advantages that: the utility model discloses simple structure, whole process utilizes parts such as sliding block, spring and lower push pedal, has realized the function that a plurality of runners cut off simultaneously, has saved the time of artifical pruning runner, has improved efficiency, has saved the cost.

Drawings

FIG. 1 is a schematic view of the mold structure of the present invention;

FIG. 2 is a schematic structural view of a second ejection part of the present invention;

FIG. 3 is a schematic view of a straight top structure of the present invention;

FIG. 4 is a schematic view of the utility model of a pitched roof;

FIG. 5 is a cross-sectional view of the lower push plate and the sliding block of the present invention;

FIG. 6 is an enlarged view taken at A in FIG. 5;

fig. 7 is a sectional view of the pitched roof structure of the present invention;

FIG. 8 is a cross-sectional view of the structure of the utility model;

1. a male die; 2. a female die; 3. obliquely ejecting I; 4. a flow channel; 5. a first inclined top guide rod; 6. a fixing plate; 7. a slanted ejecting sliding seat; 8. a lower push plate; 9. a base plate; 10. a second inclined top; 11. producing a product; 12. directly ejecting the second; 13. a guide bar; 14. a guide groove; 15. a spring; 16. a limiting block; 17. a stopper; 18. a gap; 19. a sliding cavity; 20. a second straight ejection guide rod; 21. pulling a material rod; 22. a slide base; 23. a second inclined top guide rod; 24. a slider; 25. and an oil cylinder.

Detailed Description

Example one

A die for cutting off a pouring gate comprises a male die 1 and a female die 2, wherein the male die 1 and the female die 2 are matched to form a cavity, the cavity is communicated with a flow channel 4, the flow channel 4 penetrates through a second inclined top 10, a first inclined top 3 for loosing core of a product 11 in the cavity and a first straight top for ejecting the product 11 in the cavity are arranged below the cavity, a bottom plate 9 is arranged below the male die 1, the male die 1 is fixed on the bottom plate 9 through a fixing plate 6, a lower push plate 8 is arranged on the bottom plate 9, the first inclined top 3 is arranged on the lower push plate 8 in a sliding mode, the first straight top is fixed on the lower push plate 8 through a first straight top rod guide rod 13, a sliding cavity 19 is formed between the bottom plate 9 and the lower push plate 8, a sliding block 24 is arranged in the sliding cavity 19 in a sliding mode, a spring 15 is arranged on the sliding block 24, and the other end, two sides of the sliding block 24 extend to form a stop block 17, a limit block 16 matched with the stop block 17 is fixed on the lower pushing plate 8, a gap 18 is formed between the stop block 17 and the limit block 16, the size of the gap 18 can be set according to requirements, the limit block 16 is used for driving the sliding block 24 to slide up and down in the sliding cavity 19, and the sliding block 24 is provided with a second ejection part used for performing core-pulling ejection on the flow channel 4; the device further comprises an oil cylinder 25 for driving the lower push plate 8 to move up and down, wherein a piston of the oil cylinder 25 is fixedly connected with the lower push plate 8, and the embodiment takes the oil cylinder 25 as an example for description. When the limiting block 16 contacts the stop block 17, the lower push plate 8 drives the first ejection part to eject the product 11, so that the product 11 is cut off from the flow channel 4.

The straight ejection I is fixed on the lower push plate 8 through the straight ejection guide rod I, an inclined ejection sliding seat 7 is fixed on the lower push plate 8, and the inclined ejection I3 is arranged on the inclined ejection sliding seat 7 in a sliding mode through the inclined ejection guide rod I5. The lower push plate 8 drives the inclined top sliding seat 7 to move, and the inclined top sliding seat 7 drives the inclined top I3 to move, so that the core pulling is carried out on the product 11.

The push down plate 8 is further fixed with a guide rod 13, a guide groove 14 matched with the guide rod 13 for guiding is formed in the sliding block 24, and the sliding direction of the sliding block 24 is consistent with the moving direction of the push down plate 8. The guide rod 13 and the guide groove 14 are matched to enable the sliding direction of the sliding block 24 to be consistent with the moving direction of the push-down plate 8, and the moving direction of the sliding block 24 is limited.

The second ejection component comprises a sliding seat 22 fixedly arranged on the sliding block 24, a second inclined ejector 10 used for core pulling of the flow channel 4 and a second straight ejector 12 used for ejection of the flow channel 4, the second inclined ejector 10 is arranged on the sliding seat 22 in a sliding mode through a second inclined ejector guide rod 23, and the second straight ejector 12 is fixed on the sliding block 24 through a second straight ejector guide rod 20. And a material pulling rod 21 for ejecting the flow channel 4 is also fixed on the sliding block 24. The slide block 24 drives the slide seat 22 to move up and down, so that the core pulling action of the second inclined ejector 10 is realized, and the slide block 24 drives the second straight ejector 12 to complete the ejection action of the flow channel 4.

The working principle is as follows: and opening the mold, starting the oil cylinder 25, driving the lower push plate 8 to move upwards by the oil cylinder 25, driving the inclined ejection-3 to upwards loose the core of the product 11 by the inclined ejection sliding seat 7 on the lower push plate 8, and simultaneously driving the straight ejection-upwards to move upwards to eject the product 11. In the upward movement process of the pushing plate 8, as the spring 15 is initially in a pressed state, one end of the spring 15 is arranged on the sliding block 24, the other end of the spring abuts against the pushing plate 8, the pushing plate 8 moves upward, and the spring 15 continues to extrude the sliding block 24, so that the sliding block 24 does not move along with the upward movement of the pushing plate 8 temporarily, that is, the sliding block 24 remains still, at this time, as the gap 18 is formed between the stopper 17 and the stopper 16, the gap 18 can be set as required, and the stopper 17 on the sliding block 24 is not in contact with the stopper 16 on the pushing plate 8. The lower push plate 8 drives the first inclined ejector 3 and the first straight ejector to move upwards to respectively perform core pulling and ejection on the product 11, the sliding block 24 is kept still, and the product 11 and the flow channel 4 are cut off due to the fact that the flow channel 4 is located in the second inclined ejector 10. After the lower push plate 8 moves upwards for a certain distance, after the limiting block 16 on the lower push plate 8 contacts the limiting block 17, the limiting block 16 drives the limiting block 17 to move upwards so as to drive the sliding block 24 to move upwards, the sliding block 24 drives the sliding seat 22 on the sliding block 24 to move upwards so as to drive the second inclined ejector 10 on the sliding seat 22 to move, core pulling is performed on the runner 4, the sliding block 24 drives the material pulling rod 21 and the second straight ejector 12 on the sliding block 24 to move upwards, ejection of the runner 4 is completed, the structure can be adopted at each position of the mold where the runner needs to be cut off, synchronous cutting of the runner is achieved, manpower is saved, and manual trimming is not needed any more.

Claims (9)

1. A gate-cutting mold, characterized in that: the die comprises a male die (1) and a female die (2), wherein the male die (1) and the female die (2) are matched to form a cavity, the cavity is communicated with a flow channel (4), a first ejection part used for loosing core and ejecting a product (11) in the cavity is arranged below the cavity, a bottom plate (9) is arranged below the male die (1), a lower push plate (8) is arranged on the bottom plate (9), the first ejection part is arranged on the lower push plate (8), a sliding cavity (19) is formed between the bottom plate (9) and the lower push plate (8), a sliding block (24) is arranged in the sliding cavity (19), an elastic part is arranged on the sliding block (24), the other end of the elastic part props against the lower push plate (8), stop blocks (17) are extended on two sides of the sliding block (24), and a limit block (16) matched with the stop blocks (17) is fixed on the lower push plate, the device is characterized in that a gap (18) is arranged between the stop block (17) and the limit block (16), the limit block (16) is used for driving the sliding block (24) to slide up and down in the sliding cavity (19), the sliding block (24) is provided with a second ejection part used for core-pulling ejection of the flow channel (4), and the device further comprises a driving part used for driving the lower ejection plate (8) to move up and down.

2. The gate-cutting mold according to claim 1, wherein: the male die (1) is fixed on the bottom plate (9) through a fixing plate (6).

3. The gate-cutting mold according to claim 1, wherein: the ejection component I comprises an inclined ejection part I (3) for pulling a core of a product (11) in a cavity, an inclined ejection part I for ejecting the product (11) in the cavity and an inclined ejection sliding seat (7) fixedly arranged on the lower push plate (8), the inclined ejection part I (3) is slidably arranged on the inclined ejection sliding seat (7) through an inclined ejection guide rod I (5), and the inclined ejection part I is fixed on the lower push plate (8) through the straight ejection guide rod I.

4. The gate-cutting mold according to claim 1, wherein: the second ejection component comprises a sliding seat (22) fixedly arranged on the sliding block (24), an oblique ejection second (10) used for performing core pulling on the flow channel (4) and a straight ejection second (12) used for ejecting the flow channel (4), the oblique ejection second (10) is arranged on the sliding seat (22) in a sliding mode through an oblique ejection guide rod second (23), and the straight ejection second (12) is fixed on the sliding block (24) through a straight ejection guide rod second (20).

5. The gate-cutting mold according to claim 4, wherein: and a material pulling rod (21) for ejecting the flow channel (4) is also fixed on the sliding block (24).

6. The gate-cutting mold according to claim 4, wherein: the flow channel (4) is arranged in the second inclined top (10).

7. The gate-cutting mold according to claim 1, wherein: still be fixed with guide bar (13) on push down board (8), seted up on sliding block (24) with guide bar (13) cooperation direction guide way (14), the slip direction of sliding block (24) with push down board (8) direction of motion is unanimous.

8. The gate-cutting mold according to claim 1, wherein: the driving part is an oil cylinder (25), and a piston of the oil cylinder (25) is fixedly connected with the lower push plate (8).

9. The gate-cutting mold according to claim 1, wherein: the elastic component is a spring (15).

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