CN220562083U

CN220562083U - Oblique ejection core pulling device of injection mold

Info

Publication number: CN220562083U
Application number: CN202321170505.3U
Authority: CN
Inventors: 薛承奎; 张莉
Original assignee: Zhejiang Mimi New Material Technology Co ltd
Current assignee: Zhejiang Mimi New Material Technology Co ltd
Priority date: 2023-05-16
Filing date: 2023-05-16
Publication date: 2024-03-08
Anticipated expiration: 2033-05-16

Abstract

The utility model relates to the technical field of injection mold parts and discloses an inclined ejection core pulling device of an injection mold, which comprises an upper mold and a lower mold, wherein a round groove is formed in the center of the upper end of the upper mold, a rubber pad is fixedly arranged on the round groove close to the lower side of the whole body, an injection hole is formed in the lower end of the round groove, hydraulic rods are fixedly arranged on the lower end of the upper mold close to four corners and penetrate through the upper end of the lower mold, reset cavities are formed in the lower ends of the four hydraulic rods in a penetrating mode, reset components are fixedly arranged on the bottom surfaces in the reset cavities, and an injection plate is fixedly arranged in the center of the lower end of the upper mold. According to the utility model, the injection molded product is pushed out, so that the core pulling of the injection mold is quickened, four reset components arranged at the lower ends of four hydraulic rods are improved to rebound the upper mold upwards, the molded plastic product is conveniently taken, and the production efficiency is quickened.

Description

Oblique ejection core pulling device of injection mold

Technical Field

The utility model relates to the technical field of injection mold parts, in particular to an oblique ejection core pulling device of an injection mold.

Background

The prior patent (publication No. CN 208215917U) discloses a fixed die block, a movable die block is arranged below the fixed die block, a workpiece is arranged between the fixed die block and the movable die block, an inclined hole is formed in the movable die block, a metal wear-resistant coating is fixed on the inner wall of the inclined hole, an inclined push rod is arranged in the inclined hole, one end of the inclined push rod is attached to the workpiece, a high-temperature-resistant wear-resistant material layer is arranged on the surface of the inclined push rod, the other end of the inclined push rod extends to the outer side of the movable die block, a rotary pin is fixed at the other end of the inclined push rod, the rotary pin is located below the movable die block, an inclined push rod sliding block seat is arranged at the bottom end of the rotary pin, and a sliding plate is arranged at the bottom end of the inclined push rod sliding block seat. According to the utility model, the metal wear-resistant coating is arranged on the inner wall of the inclined hole, the high-temperature-resistant wear-resistant material layer is fixed on the surface wall of the inclined push rod, so that the inclined push rod can slide in the inclined hole more conveniently, the strength and wear resistance of the inclined push rod are improved, and the service life of the inclined push rod is prolonged.

The inventors found that the following problems exist in the prior art in the process of implementing the present utility model: 1. after the plastic products are pushed by the inclined push rod, the molded plastic products cannot be efficiently core-pulled when pushed out, so that the production efficiency is affected; 2. the reset effect cannot be achieved after core pulling, manual reset is needed, and accidental injury is easily caused to staff.

Therefore, it is needed to provide an oblique ejection core pulling device of an injection mold.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides an oblique ejection core pulling device of an injection mold, which can be used for more stably pulling a core after injection molding, preventing shaking in the core pulling process, resetting an upper mold, facilitating taking of a plastic product after injection molding, enabling the injection product to be demoulded more smoothly and not easy to adhere to the mold.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the oblique ejection core pulling device of the injection mold comprises an upper mold and a lower mold, wherein a round groove is formed in the center of the upper end of the upper mold, a rubber pad is fixedly arranged on the whole body of the round groove close to the lower side, injection holes are formed in the lower end of the round groove, hydraulic rods are fixedly arranged at the lower end of the upper mold close to four corners and penetrate through the upper end of the lower mold, reset cavities are fixedly arranged at the lower ends of the four hydraulic rods, reset components are fixedly arranged on the bottom surfaces in the reset cavities, and an injection plate is fixedly arranged at the center of the lower end of the upper mold;

through above-mentioned technical scheme, make things convenient for the mould whole to fix a position at the in-process of assembling through the circular slot that sets up in last mould center to the hole of moulding plastics has been seted up at the lower extreme of circular slot, and uses the rubber pad to seal, prevents to mould plastics the in-process leakage, conveniently takes after the plastic product is moulded plastics through setting up reset assembly in four corners in last mould lower extreme, need not the manual work and dismantle hard.

Further, a cavity is formed in the lower die, a telescopic cylinder is embedded in the center of the inner bottom surface of the cavity, a top plate is fixedly arranged at the output end of the telescopic cylinder, a push hole is formed in the inner top surface of the cavity, a positioning column is fixedly arranged below the inner part of the push hole, a bearing seat is fixedly arranged on one side of the upper end of the top plate, a push rod is rotatably arranged at the upper end of the bearing seat, and an auxiliary plate is fixedly arranged on the other side of the upper end of the top plate and penetrates through the lower die;

through above-mentioned technical scheme, through seting up the cavity in the inside of bed die, upwards remove the roof with flexible cylinder, make the push rod that is connected with the bearing frame on the roof go on the top, also upwards remove the subplate on the roof simultaneously, it is convenient to push out the injection molding product after reset, conveniently takes the injection molding product, prevents that the manpower from taking the in-process that takes from taking dangerous.

Further, rollers are fixedly arranged on two sides, close to the upper part, of the whole body of the push rod, and sliding grooves are formed in two sides, close to the upper part, of the interior of the push hole;

through above-mentioned technical scheme, can slide in the spout inside through the gyro wheel that sets up in the whole body both sides of push rod, strengthened the speed of promotion, reduced the frictional force when ejecting the injection molding, make the mould more quick at the in-process of loosing core.

Further, the reset assembly comprises a motor, a punching drill bit is fixedly arranged at the output end of the motor, a sliding block is fixedly arranged at the lower end of the punching drill bit, the sliding block penetrates through the outer side of the through rod, the through rod is fixedly arranged on the inner walls of the two sides of the reset groove, and a reset spring is fixedly sleeved on the whole body of the through rod;

through above-mentioned technical scheme, can carry out the punching that needs with injection molding product through the drill bit that punches of the motor output that sets up in reset assembly to in-process that carries out the push down, the slider slides and extrudees on reset spring on the general pole, reset spring can rebound after certain power, reaches the effect that resets.

Further, fixing columns are fixedly arranged at four corners of the lower end of the lower die, and suckers are fixedly arranged at the center of the inner top surface of each fixing column;

through above-mentioned technical scheme, through setting up four sucking discs at four fixed column interior top surfaces, the mould is whole to be fixed on the working face more steadily in the in-process that carries out work, makes can not lead to production efficiency to descend because of the influence of rocking in the in-process of production and processing.

Further, the injection molding plate comprises an abrasion-resistant layer, and a demolding layer is fixedly arranged at the lower end of the abrasion-resistant layer;

through above-mentioned technical scheme, through set up the layer that wears to have improved the life of moulding plastics board in the board of moulding plastics to the fixed release layer that sets up in the lower extreme of layer that wears to, the product after the convenience injection moulding can carry out the drawing of patterns more fast, can not hinder production because of the drawing of patterns failure.

Further, a PVD wear-resistant coating is used in the wear-resistant layer in the injection molding plate, and a material used for the demolding layer in the injection molding plate is a silica gel demolding agent;

according to the technical scheme, the PVD wear-resistant coating can improve the strength of the surface, enhance the wear resistance, has good heat conduction, corrosion resistance, self-lubrication and scratch resistance, has the characteristics of excellent demolding property, smooth product surface, no pollution and the like, is colorless, odorless, nontoxic, does not hurt the skin and is harmless to human bodies.

Further, handles are fixedly arranged at the centers of the front end and the rear end of the upper die;

through above-mentioned technical scheme, through all fixed setting up the handle in last mould front and back end center department, take after the convenience drawing of patterns, follow-up holistic maintenance of mould of being convenient for.

The utility model has the following beneficial effects:

1. according to the inclined ejection core pulling device of the injection mold, the rollers are arranged on two sides of the upper end of the push rod and can slide in the sliding groove, the push rod can be rotated by a small extent through the bearing seat, the positioning column is arranged below the whole body of the push rod, the core pulling effect is prevented from being poor due to shaking of the push rod when the push rod is pushed, the reset components are arranged at the lower ends of the four hydraulic rods, the upper mold can be reset after injection molding, and the molded plastic product can be conveniently taken.

2. According to the inclined ejection core pulling device of the injection mold, disclosed by the utility model, the formed plastic product is rapidly demoulded through the abrasion-resistant layer and the demoulding layer arranged on the injection molding plate, the injection molding plate is prevented from being damaged during stamping, the service life of the injection molding plate is prolonged, and four suckers are fixedly arranged at four corners of the lower end of the lower mold to stabilize the whole mold, so that the probability of damage to raw materials caused by errors in production and processing of the mold is reduced.

Drawings

FIG. 1 is an axial view of an oblique top core pulling device of an injection mold;

FIG. 2 is a schematic front sectional view of an oblique ejection core pulling device of an injection mold according to the present utility model;

FIG. 3 is an enlarged schematic view of the position A of the oblique top core pulling device of the injection mold;

FIG. 4 is an enlarged schematic view of a B-site of an oblique top core pulling device of an injection mold according to the present utility model;

fig. 5 is a schematic diagram of an injection plate structure of an oblique ejection core pulling device of an injection mold according to the present utility model.

Legend description:

1. an upper die; 2. a lower die; 3. fixing the column; 4. a hydraulic rod; 5. a circular groove; 6. a rubber pad; 7. a reset chamber; 8. a reset assembly; 801. a motor; 802. a reset groove; 803. a perforating drill bit; 804. a slide block; 805. a through rod; 806. a return spring; 9. injection molding holes; 10. positioning columns; 11. a sub-plate; 12. a cavity; 13. a suction cup; 14. a bearing seat; 15. a telescopic cylinder; 16. a top plate; 17. a push rod; 18. a roller; 19. a chute; 20. pushing holes; 21. an injection molding plate; 2101. an abrasion-resistant layer; 2102. a release layer; 22. a handle.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, one embodiment provided by the present utility model is: the utility model provides an injection mold's top to one side device of loosing core, including last mould 1 and bed die 2, circular slot 5 has been seted up to last mould 1 upper end center department, circular slot 5 whole body is close to the fixed rubber pad 6 that is provided with in below, injection hole 9 has been seted up to circular slot 5 lower extreme, it all is fixed to be provided with hydraulic rod 4 by four corners to go up mould 1 lower extreme and run through and set up in bed die 2 upper end, four hydraulic rod 4 lower extreme all run through and are provided with reset chamber 7, four reset chamber 7 inner bottom surfaces are all fixed and are provided with reset assembly 8, go up mould 1 lower extreme center department is fixed and are provided with injection plate 21, make things convenient for the mould whole to carry out the in-process of equipment through the circular slot 5 that sets up in last mould 1 center department to the inaccuracy that prevents to cause material loss, and injection hole 9 has been seted up to the lower extreme of circular slot 5, and use rubber pad 6 to seal, prevent the in-process leakage of moulding plastics, set up reset assembly 8 through last plastic product through last reset assembly 8 in last four corners of last mould 1 lower extreme, need not to take part by manpower to dismantle.

The cavity 12 has been seted up to the inside cavity 12 of having offered of bed die 2, the embedding of bottom surface center department is provided with telescopic cylinder 15 in the cavity 12, telescopic cylinder 15 output is fixed to be provided with roof 16, push away hole 20 has been offered to the top surface in the cavity 12, push away hole 20 inside and lean on the fixed reference column 10 that is provided with in below, roof 16 upper end one side is fixed to be provided with bearing frame 14, bearing frame 14 upper end rotates and is provided with push rod 17, roof 16 upper end opposite side is fixed to be provided with subplate 11 and runs through bed die 2, through set up cavity 12 in bed die 2, upward remove telescopic cylinder 15 with roof 16, make roof 16 go on the top with the push rod 17 that bearing frame 14 is connected, push rod 17 can carry out the rotation of a small margin on bearing frame 14, prevent that the impact force is too big to lead to push rod 17 to be damaged, simultaneously with subplate 11 on roof 16 also upwards remove, the convenience is ejecting the injection molding product after reset, the convenience is taking the injection molding product, prevent that the manpower from taking the in-process from taking the dangerous, the in-process has also saved the labour, the production efficiency of product has been improved, push rod 17 is all fixed in both sides lean on the top both sides, push rod 17 is provided with the gyro wheel 18, push rod 20 side is inside the inside is provided with the gyro wheel 19 in order to carry out the roller 19 in the inside the roller 19 and the roller is set up in order to reduce the speed in the roller 19 and the inside the roller is more to carry out the roller 19, the roller is more in the inside the roller is reduced in the process, the roller 19 has been set up in the roller 19 has been made to the roller 19.

Reset assembly 8 includes motor 801, motor 801 output is fixed and is provided with drilling bit 803, drilling bit 803 lower extreme is fixed and is provided with slider 804, slider 804 runs through the setting in the through-rod 805 outside, the fixed setting in the inside wall of reset groove 802 both sides of through-rod 805, through-rod 805 whole fixed cover is equipped with reset spring 806, can carry out the punching that needs with injection moulding product through the drilling bit 803 of motor 801 output that sets up in reset assembly 8, prevent the product adhesion after moulding plastics on the mould is holistic, and the in-process of pushing down, slider 804 slides and extrudees on reset spring 806 on through-rod 805, reset spring 806 can rebound after certain power, reach the effect that resets, the fixed column 3 that is provided with in four corners of lower mould 2 lower extreme, the fixed column 3 top surface center department is fixed and is provided with sucking disc 13, through setting up four sucking discs 13 at four fixed column 3 internal top surfaces, sucking disc 13 can have great adsorption to the stationary plane, the mould is whole carries out more steadily fixing on the working plane in the in-process of carrying out work, make in the production and can not lead to the production efficiency to rocking to the reduction because of the in the production and processing.

The injection molding plate 21 comprises the abrasion-resistant layer 2101, the demolding layer 2102 is fixedly arranged at the lower end of the abrasion-resistant layer 2101, the service life of the injection molding plate 21 is prolonged by arranging the abrasion-resistant layer 2101 in the injection molding plate 21, the demolding layer 2102 is fixedly arranged at the lower end of the abrasion-resistant layer 2101, products after injection molding can be demolded more quickly, production is not hindered by demolding failure, PVD (physical vapor deposition) abrasion-resistant coating is used in the abrasion-resistant layer 2101 in the injection molding plate 21, the material of the demolding layer 2102 in the injection molding plate 21 is silica gel demolding agent, the PVD abrasion-resistant coating can improve the strength of the surface, enhance the abrasion resistance, and the mold has the advantages of good heat conduction, corrosion resistance, self lubrication, scratch resistance, acceleration of demolding, production efficiency, excellent demolding performance, smooth product surface, no pollution and the like, and is colorless, odorless, the silica gel demolding agent is harmless to human body, the handles 22 are fixedly arranged at the centers of the front end and the rear end of the upper mold 1, the handles are fixedly arranged at the centers of the front end and the rear end of the upper mold 1, the entire mold is convenient to take and convenient to take the handles.

Working principle: the whole mould is assembled, the injection molding agent is injected into the injection molding plate 21, the telescopic cylinder 15 ascends after the injection molding of the product, the injection molded product is pushed out through the push rod 17 on the top plate 16, the rollers 18 on two sides of the push rod 17 slide in the sliding groove 19, and the reset springs 806 at the lower ends of the four hydraulic rods 4 reset after the injection molding of the product is completed, so that the upper mould 1 ascends, and the product is conveniently taken.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides an injection mold's top to one side device of loosing core, includes cope mold (1) and bed mold (2), its characterized in that: round groove (5) have been seted up to last mould (1) upper end center department, round groove (5) whole body is provided with rubber pad (6) by the fixed below, round groove (5) lower extreme has been seted up and has been moulded plastics hole (9), it all is fixed to be provided with hydraulic stem (4) by four corners and run through setting up in bed die (2) upper end to go up mould (1) lower extreme, and four hydraulic stem (4) lower extreme all run through and are provided with reset chamber (7), four reset chamber (7) interior bottom surface all is fixed and is provided with reset assembly (8), it is fixed that mould (21) are moulded plastics to go up mould (1) lower extreme center department.

2. The oblique top core pulling device of the injection mold according to claim 1, wherein: cavity (12) have been seted up to bed die (2) inside, bottom surface center department embedding is provided with flexible cylinder (15) in cavity (12), flexible cylinder (15) output is fixed to be provided with roof (16), push away hole (20) have been seted up to top surface in cavity (12), push away hole (20) inside and lean on the fixed reference column (10) that are provided with in below, roof (16) upper end one side is fixed to be provided with bearing frame (14), bearing frame (14) upper end rotation is provided with push rod (17), roof (16) upper end opposite side is fixed to be provided with subplate (11) and runs through bed die (2).

3. The oblique top core pulling device of the injection mold according to claim 2, wherein: rollers (18) are fixedly arranged on two sides, close to the upper part, of the whole body of the push rod (17), and sliding grooves (19) are formed in two sides, close to the upper part, of the interior of the push hole (20).

4. The oblique top core pulling device of the injection mold according to claim 1, wherein: reset subassembly (8) include motor (801), motor (801) output is fixed to be provided with drill bit (803), drill bit (803) lower extreme is fixed to be provided with slider (804), slider (804) run through and set up in logical pole (805) outside, lead to pole (805) fixed setting is in reset groove (802) both sides inner wall, the fixed cover of leading to pole (805) whole body is equipped with reset spring (806).

5. The oblique top core pulling device of the injection mold according to claim 1, wherein: fixing columns (3) are fixedly arranged at four corners of the lower end of the lower die (2), and sucking discs (13) are fixedly arranged in the center of the inner top surface of each fixing column (3).

6. The oblique top core pulling device of the injection mold according to claim 1, wherein: the injection molding plate (21) comprises an abrasion-resistant layer (2101), and a demolding layer (2102) is fixedly arranged at the lower end of the abrasion-resistant layer (2101).

7. The oblique top core pulling device of the injection mold according to claim 1, wherein: PVD wear-resistant coating is used in the wear-resistant layer (2101) in the injection molding plate (21), and the material used for the release layer (2102) in the injection molding plate (21) is silica gel release agent.

8. The oblique top core pulling device of the injection mold according to claim 1, wherein: handles (22) are fixedly arranged at the centers of the front end and the rear end of the upper die (1).