CN214645391U

CN214645391U - Delay die structure for ejecting movable die

Info

Publication number: CN214645391U
Application number: CN202022295796.1U
Authority: CN
Inventors: 叶毅龙; 戴伟荣; 吴立军
Original assignee: Zhangzhou Lianshenghong Plastic Technology Co ltd
Current assignee: Zhangzhou Lianshenghong Plastic Technology Co ltd
Priority date: 2020-10-15
Filing date: 2020-10-15
Publication date: 2021-11-09
Anticipated expiration: 2030-10-15

Abstract

The utility model discloses a be used for ejecting time delay mould structure of movable mould, which comprises a mould body, a hydraulic oil section of thick bamboo, the cylinder, first top actuating mechanism and second top actuating mechanism, the recess internal fixation of mould body bottom has a hydraulic oil section of thick bamboo, be fixed with the cylinder on the inner wall of recess one side, inside first standing groove and the second standing groove of having seted up of mould body, first standing groove internal fixation has a first department section of thick bamboo, it is equipped with first thimble to insert on the first department section of thick bamboo, the bottom mounting of first thimble has first roof, the bottom center department of first roof is fixed with first spring, the second standing groove internal fixation has a second department section of thick bamboo, it is equipped with the second thimble to insert on the second department of thick bamboo, the bottom center department of second thimble is fixed with the second spring. Has the advantages that: can let the thimble can steadily rise, the impact force is less, and stability is stronger, and the thimble is difficult for breaking simultaneously, disposes two different springs of pulling force, is convenient for accomplish the time delay ejecting, and overall structure is simple, need not frequently overhaul and change parts.

Description

Delay die structure for ejecting movable die

Technical Field

The utility model relates to the technical field of mold, specifically be a be used for ejecting time delay mould structure of movable mould.

Background

When adopting the mould processing product, for example mould plastics, pour processing etc. after the die sinking, the product can glue on last movable mould, just need utilize ejecting mould to ejecting it when taking off the product, ejecting mould includes once only ejecting and time delay ejecting etc. when the product center is the sunken type, just need use time delay ejecting mould, can avoid tearing the product.

At present, be used for ejecting time delay mould structure of movable mould, adopt electric putter or cylinder directly to support to let its rise on the thimble mostly, can produce great impact force after thimble and product contact, it is sunken with the product top very easily, the thimble also receives the impact force to influence directly the rupture easily simultaneously, stability is relatively poor, secondly, can accomplish time delay ejecting mould structure complicacy, the part is more, needs frequent maintenance and change part, seriously influences production efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: aiming at the problems existing at present, a time delay die structure for ejecting a movable die is provided, a hydraulic oil cylinder is arranged at the bottom of a groove, oil guide pipes are respectively arranged between the hydraulic oil cylinder and a first placing groove and a second placing groove, hydraulic oil in the hydraulic cylinder is conveyed into the placing grooves by using an air cylinder to jack up a thimble, an electric push rod or the air cylinder is replaced by a hydraulic jacking mode to jack up the thimble, and the thimble is matched with a spring for use, so that the thimble can stably rise, the impact force is small, the stability is strong, and the thimble is not easy to break; the springs are arranged below the first top plate and the second top plate respectively, the top plates are pulled by the springs to be fixed in the placing grooves, meanwhile, the two springs are different in pulling force, delay ejection is convenient to complete, the whole structure is simple, the number of parts is small, frequent maintenance and part replacement are not needed, production efficiency is greatly improved, and therefore the defects in the prior art are overcome.

In order to realize the purpose, the utility model discloses a technical scheme is:

a time delay die structure for ejecting a moving die comprises a die body with a cuboid structure, a hydraulic oil cylinder, a first ejecting mechanism and a second ejecting mechanism, wherein a groove is formed in the bottom of the die body, the hydraulic oil cylinder is fixed in the groove, a push plate is arranged in the hydraulic oil cylinder, the cylinder is fixed on the inner wall of one side of the groove and used for sending hydraulic oil into a placing groove, the first ejecting mechanism and the second ejecting mechanism are arranged in the die body, the first ejecting mechanism comprises a first placing groove, a first ejector sleeve, a first ejector pin, a first top plate and a first spring, the first placing groove is formed in the die body, a first ejector sleeve is fixed in the first placing groove, the first ejector pin is inserted in the first ejector sleeve and used for ejecting a product, the first top plate is fixed at the bottom end of the first ejector pin and used for sealing the hydraulic oil in the placing groove, the bottom center department of first roof is fixed with first spring for drawing back the roof and reseing, second top moving mechanism includes second standing groove, second department section of thick bamboo, second thimble, second roof and second spring, the second standing groove has been seted up to the inside of mould body, the second standing groove internal fixation has a second department section of thick bamboo, it is equipped with the second thimble to insert on the second department section of thick bamboo, the bottom center department of second thimble is fixed with the second spring, is convenient for accomplish the time delay and is ejecting.

Preferably, the hydraulic oil cylinder is communicated with the first placing groove through a first oil guide pipe, and the joint of the first oil guide pipe and the first placing groove is located below the first top plate.

Preferably, the hydraulic oil cylinder is communicated with the second placing groove through a second oil guide pipe, and the joint of the second oil guide pipe and the second placing groove is located below the second top plate.

Preferably, the bottom ends of the first spring and the second spring are respectively fixed at the bottoms of the first placing groove and the second placing groove, and the pulling force of the second spring is greater than that of the first spring.

Preferably, the inner end of the cylinder is fixed on the push plate, and a sealing ring is arranged at the penetrating position of the extending end of the cylinder and the hydraulic oil cylinder.

Preferably, one end of the hydraulic oil cylinder is communicated with an oil filling pipe, and the oil filling pipe is positioned below the first oil guide pipe.

Since the technical scheme is used, the beneficial effects of the utility model are that:

1. the hydraulic oil cylinder is arranged at the bottom of the groove, the oil guide pipes are respectively arranged between the hydraulic oil cylinder and the first placing groove and the second placing groove, hydraulic oil in the hydraulic oil cylinder is conveyed into the placing grooves by the cylinders to jack up the ejector pins, the mode of hydraulic jacking is adopted to replace an electric push rod or the cylinders to jack up the ejector pins, the ejector pins are matched with the springs to be used, the ejector pins can stably rise, the impact force is low, the stability is high, and meanwhile the ejector pins are not easy to break.

2. The springs are arranged below the first top plate and the second top plate respectively, the top plates are pulled by the springs to be fixed in the placing grooves, meanwhile, the two springs are different in pulling force, delay ejection is convenient to complete, the whole structure is simple, the number of parts is small, frequent maintenance and part replacement are not needed, and production efficiency is greatly improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic structural view of a state when the first thimble is ejected;

fig. 3 is a schematic diagram of the state structure when two ejector pins are ejected.

In the figure: 1. a mold body; 2. a groove; 3. a hydraulic oil cylinder; 4. a cylinder; 5. a first placing groove; 6. a second placing groove; 7. a first ejector sleeve; 8. a second ejector sleeve; 9. a first thimble; 10. a second thimble; 11. a first top plate; 12. a second top plate; 13. a first spring; 14. a second spring; 15. pushing the plate; 16. a first oil guide pipe; 17. and a second oil guide pipe.

Detailed Description

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the accompanying drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solution in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, rather than all embodiments, based on the embodiments in the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the scope of the present invention.

Referring to fig. 1-3, the utility model provides a technical scheme, a time-delay mold structure for ejecting a movable mold, comprising a mold body 1 with a cuboid structure, a hydraulic oil cylinder 3, a cylinder 4, a first ejecting mechanism and a second ejecting mechanism, wherein the bottom of the mold body 1 is provided with a groove 2, the groove 2 is internally fixed with the hydraulic oil cylinder 3, the hydraulic oil cylinder 3 is internally provided with a push plate 15, the inner wall of one side of the groove 2 is fixed with the cylinder 4 for conveying hydraulic oil into the placing groove, so that the hydraulic oil can be used for ejecting the thimble to ascend, the mold body 1 is internally provided with the first ejecting mechanism and the second ejecting mechanism, the first ejecting mechanism comprises a first placing groove 5, a first ejector sleeve 7, a first thimble 9, a first ejector plate 11 and a first spring 13, the mold body 1 is internally provided with the first placing groove 5, the first ejector sleeve 7 is fixedly arranged in the first placing groove 5, a first ejector pin 9 is inserted into the first ejector sleeve 7 and used for ejecting a product, a first top plate 11 is fixed at the bottom end of the first ejector pin 9 and used for sealing hydraulic oil in the placing groove, a first spring 13 is fixed at the center of the bottom of the first top plate 11 and used for pulling back the top plate, the second ejecting mechanism comprises a second placing groove 6, a second ejector sleeve 8, a second ejector pin 10, a second top plate 12 and a second spring 14, the second placing groove 6 is formed in the die body 1, a second ejector sleeve 8 is fixed in the second placing groove 6, the second ejector pin 10 is inserted into the second ejector sleeve 8, and a second spring 14 is fixed at the center of the bottom of the second ejector pin 10 and used for facilitating the completion of delay ejection.

Preferably, the hydraulic oil cylinder 3 is communicated with the first placing groove 5 through a first oil guide pipe 16, and the joint of the first oil guide pipe 16 and the first placing groove 5 is located below the first top plate 11 and used for conveying hydraulic oil in the first placing groove 5.

Preferably, the hydraulic oil cylinder 3 is communicated with the second placing groove 6 through a second oil guide pipe 17, and a joint of the second oil guide pipe 17 and the second placing groove 6 is located below the second top plate 12 and used for conveying hydraulic oil into the second placing groove 6.

Preferably, the bottom ends of the first spring 13 and the second spring 14 are respectively fixed at the bottom of the first placing groove 5 and the bottom of the second placing groove 6, and the pulling force of the second spring 14 is greater than that of the first spring 13, so as to facilitate the completion of the delayed ejection.

Preferably, the inner end of the cylinder 4 is fixed on the push plate 15, and the penetrating part of the extending end of the cylinder 4 and the hydraulic oil cylinder 3 is provided with a sealing ring for preventing hydraulic oil from seeping out.

Preferably, one end of the hydraulic oil cylinder 3 is communicated with an oil injection pipe, and the oil injection pipe is positioned below the first oil guide pipe 16, so that hydraulic oil can be conveniently injected into the hydraulic oil cylinder 3.

In this embodiment, the principle of the time-delay mold structure for ejecting the movable mold is as follows:

firstly, opening the cylinder 4 to contract, pulling the push plate 15 to be far away from the oil injection pipe by using the cylinder 4, then injecting a proper amount of hydraulic oil into the hydraulic oil cylinder 3 from the oil injection pipe, after oil injection is completed, sealing the oil injection pipe, and finally, installing the mold on an injection molding mechanism, so that the injection molding mechanism has a delayed ejection function, after injection molding and mold opening are completed, opening the opening cylinder 4 to push the push plate 15 to move towards the oil injection pipe, so that the hydraulic oil is sent into the first placing groove 5, as the hydraulic oil amount in the first placing groove 5 is continuously increased, the first ejector pin 9 is slowly ejected upwards, the top of the first ejector pin 9 is ejected out from the first placing groove 5 and is ejected on a product, when the first ejector pin 9 is lifted to the maximum height, the first top plate 11 is attached to the bottom of the first ejector pin 7 and cannot be ejected upwards, and as the tensile force of the second spring 14 is greater than that of the first spring 13, when the hydraulic oil enters the first placing groove 5 and the second placing groove 6, the first spring 13 is firstly stretched, the second spring 14 is not stretched, when the first top plate 11 is attached to the bottom of the first ejector sleeve 7 and cannot be jacked up, the hydraulic oil sent out by the hydraulic oil cylinder 3 can completely enter the second placing groove 6, when the hydraulic oil pressure in the second placing groove 6 is greater than the tensile force of the second spring 14, the second spring 14 is stretched, at the moment, the second top plate 12 drives the second ejector pin 10 to ascend, after the first ejector pin 9 stretches out, the second ejector pin stretches out and butts against the product in a delayed manner, the product is jacked out by matching with the first ejector pin 9, so that delayed jacking is completed, after the product is jacked out, the cylinder 4 retracts, the first spring 13 and the second spring 14 respectively pull down the first top plate 11 and the second top plate 12 by utilizing the self tensile force to extrude the hydraulic oil in the first placing groove 5 and the second placing groove 6 back to the hydraulic oil cylinder 3, thereby let first roof 11 and second roof 12 reset to it is ejecting to prepare next time with the product delay, adopt the mode that hydraulic pressure top moved to replace electric putter or cylinder top to move the thimble and rise, use with the spring cooperation, let the thimble can steadily rise, the impact strength is less, stability is stronger, the thimble is difficult for breaking simultaneously, dispose two springs that the pulling force is different, it is ejecting to be convenient for accomplish the delay, overall structure is simple, the part is few, need not frequently overhaul and change the part, improve production efficiency greatly.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a be used for ejecting time delay mould structure of movable mould, includes mould body (1), hydraulic oil section of thick bamboo (3), cylinder (4), first top actuating mechanism and the second top actuating mechanism of cuboid structure, its characterized in that: the bottom of the die body (1) is provided with a groove (2), a hydraulic oil cylinder (3) is fixed in the groove (2), a push plate (15) is arranged in the hydraulic oil cylinder (3), an air cylinder (4) is fixed on the inner wall of one side of the groove (2), a first jacking mechanism and a second jacking mechanism are arranged in the die body (1), the first jacking mechanism comprises a first placing groove (5), a first ejector sleeve (7), a first ejector pin (9), a first top plate (11) and a first spring (13), the first placing groove (5) is arranged in the die body (1), the first ejector sleeve (7) is fixed in the first placing groove (5), the first ejector pin (9) is inserted in the first ejector sleeve (7), the bottom end of the first ejector pin (9) is fixed with a first top plate (11), the center of the bottom of the first top plate (11) is fixed with the first spring (13), the second jacking mechanism comprises a second placing groove (6), a second ejector sleeve (8), a second ejector pin (10), a second top plate (12) and a second spring (14), the second placing groove (6) is formed in the die body (1), the second ejector sleeve (8) is fixed in the second placing groove (6), the second ejector pin (10) is inserted in the second ejector sleeve (8), and the second spring (14) is fixed at the center of the bottom of the second ejector pin (10).

2. The time-delay die structure for ejection of a movable die as claimed in claim 1, wherein: the hydraulic oil cylinder (3) is communicated with the first placing groove (5) through a first oil guide pipe (16), and the joint of the first oil guide pipe (16) and the first placing groove (5) is located below the first top plate (11).

3. The time-delay die structure for ejection of a movable die as claimed in claim 1, wherein: the hydraulic oil cylinder (3) is communicated with the second placing groove (6) through a second oil guide pipe (17), and the joint of the second oil guide pipe (17) and the second placing groove (6) is located below the second top plate (12).

4. The time-delay die structure for ejection of a movable die as claimed in claim 1, wherein: the bottom ends of the first spring (13) and the second spring (14) are respectively fixed at the bottoms of the first placing groove (5) and the second placing groove (6), and the pulling force of the second spring (14) is larger than that of the first spring (13).

5. The time-delay die structure for ejection of a movable die as claimed in claim 1, wherein: the inner end of the cylinder (4) is fixed on the push plate (15), and a sealing ring is arranged at the penetrating position of the extending end of the cylinder (4) and the hydraulic oil cylinder (3).

6. The time-delay die structure for ejection of a movable die as claimed in claim 2, wherein: one end of the hydraulic oil cylinder (3) is communicated with an oil filling pipe, and the oil filling pipe is positioned below the first oil guide pipe (16).