CN216182441U

CN216182441U - Anti-sticking is dead injection mold ejection mechanism

Info

Publication number: CN216182441U
Application number: CN202122047724.XU
Authority: CN
Inventors: 刘华奇
Original assignee: Kunshan Jingbo Molding Co ltd
Current assignee: Kunshan Jingbo Molding Co ltd
Priority date: 2021-08-28
Filing date: 2021-08-28
Publication date: 2022-04-05
Anticipated expiration: 2031-08-28

Abstract

The utility model discloses an anti-sticking injection mold ejection mechanism, which relates to the field of injection molds and comprises a guide plate and a movable mold base, wherein an ejection block is arranged in the middle of the guide plate, a movable mold mounting plate is fixedly connected to the front end of the movable mold base, ejection through holes are formed in the middle parts of the movable mold base and the movable mold mounting plate in a penetrating manner, four corners of the front end of the movable mold mounting plate are fixedly connected with movable mold mounting columns, movable molds are fixedly connected to the front ends of the movable mold mounting columns, fixed molds are arranged at the front ends of the movable molds, and a mold cavity is formed by the inner parts of the front ends of the movable molds and the fixed molds. The movable mould mounting panel front end sliding connection has ejecting seat, and ejecting seat front end four corners is fixed with the thimble, and the advantage of the utility model lies in: through structural design, can effectually prevent that ejection mechanism's card is dead, improve the continuity of the production of moulding plastics, and then improve the efficiency of moulding plastics, simultaneously adjustable ejection distance, convenient to use can avoid the direct collision of thimble and injection molding when ejecting, improves the shaping quality of injection molding.

Description

Anti-sticking is dead injection mold ejection mechanism

Technical Field

The utility model relates to the field of injection molds, in particular to an anti-blocking injection mold ejection mechanism.

Background

Injection molding is a method for producing and molding industrial products. The products are generally produced by rubber injection molding and plastic injection molding. The injection molding can be classified into an injection molding die method and a die casting method according to the injection molding process.

The injection molding machine has the working principle that molten plastic is injected into a closed mold cavity by means of the thrust of a screw or a plunger, the molten plastic is solidified and shaped, and then the mold is opened to obtain a plastic product. Injection molding is a cyclic process, each cycle mainly comprising: quantitative feeding, melting and plasticizing, pressure injection, die cooling, die opening and part taking, and die closing. The next cycle is performed.

In the use of an injection mold, after an injection molding piece is molded, the injection molding piece needs to be taken down, the material taking process is generally realized by ejecting an ejection mechanism, the existing ejection mechanism is fixed on the mold and cannot adjust the ejection distance, certain limitation exists during use, the ejection mechanism directly collides with the injection molding piece for ejection during use, micro deformation of the injection molding piece is easily caused, the integrity of the injection molding piece is influenced, the production yield of the injection molding piece is reduced, the existing mold ejection structure does not have a resetting device, the ejection mechanism is easily blocked during use, and the injection molding production is influenced.

SUMMERY OF THE UTILITY MODEL

For solving above-mentioned technical problem, provide an anti-sticking died injection mold ejection mechanism, this technical scheme has solved on the current ejection mechanism who provides is fixed in the mould among the above-mentioned background art, can not adjust ejecting distance, there is certain limitation during the use, and ejection mechanism directly collides the injection molding and carries out ejecting when using, very easily causes the micro deformation of injection molding, influence the integrity of injection molding, cause the production yield decline of injection molding, and current mould ejection structure does not have resetting means, easily lead to ejection mechanism card dead during the use, influence the problem of injection molding production.

In order to achieve the above purposes, the technical scheme adopted by the utility model is as follows:

an anti-sticking injection mold ejection mechanism comprises a guide plate and a movable mold base, wherein an ejection block is arranged in the middle of the guide plate, a guide post is fixedly connected to the rear end of the movable mold base, the movable mold base is slidably connected with the guide plate through the guide post, a movable mold mounting plate is fixedly connected to the front end of the movable mold base, ejection through holes are formed in the middle of the movable mold base and the movable mold mounting plate in a penetrating manner, movable mold mounting posts are fixedly connected to the four corners of the front end of the movable mold mounting plate, a movable mold is fixedly connected to the front end of the movable mold mounting post, a fixed mold is arranged at the front end of the movable mold, a mold cavity is formed by the inner part of the front end of the movable mold and the fixed mold, an ejection seat is slidably connected to the front end of the movable mold mounting plate, ejection pins are fixedly mounted at the four corners of the front end of the ejection seat, the front ends of the ejection pins penetrate through the movable mold and extend to the mold cavity, each ejection pin comprises an ejection pin base rod, the front end of the ejection pin is slidably connected with a buffer rod, the front end of the buffer rod is provided with a thimble head, and the front end of the thimble head is fixedly connected with a rubber block.

Preferably, the movable mold mounting plate is fixedly connected with an ejection seat guide rod, the ejection seat is slidably connected with the ejection seat guide rod through a linear bearing, an ejection spring is sleeved outside the ejection seat guide rod, one end of the ejection spring is abutted against the ejection seat, and the other end of the ejection spring is abutted against the movable mold.

Preferably, the rear end of the thimble base rod is fixedly connected with a thimble thread head, and the thimble base rod is fixedly connected with the ejection seat through the thimble thread head.

Preferably, buffer rod rear end fixedly connected with buffers the slide bar, buffer slide bar rear end sliding connection is inside thimble base rod, the buffering slide bar overcoat is equipped with buffer spring, the buffer spring both ends respectively with thimble base rod and buffer rod butt.

Preferably, thimble head rear end fixedly connected with thimble screw portion, the thimble head passes through thimble screw portion and buffer beam threaded connection.

Preferably, the ejection block comprises an ejection base, the rear end of the ejection base is fixedly connected with an ejection block connecting part, and the ejection block is in threaded connection with the guide plate through the ejection block connecting part.

Preferably, the middle part of the ejection base is provided with an ejection groove, an ejection head is arranged in the ejection groove, the rear end of the ejection head is fixedly connected with an adjusting screw rod, the adjusting screw rod penetrates through the ejection block connecting part and extends to the rear end of the ejection block connecting part, and the position of the adjusting screw rod extending to the rear end of the ejection block connecting part is in threaded connection with an adjusting nut.

Preferably, the adjusting screw is sleeved with an adjusting spring, one end of the adjusting spring is abutted to the bottom of the ejection slot, and the other end of the adjusting spring is abutted to the rear end of the ejection head.

Preferably, the outer diameter of the ejection head is smaller than the diameter of the ejection through hole.

Compared with the prior art, the utility model has the advantages that:

1) the ejection spring is arranged on the ejection seat, and when the mold is closed, two ends of the ejection spring are respectively abutted against the ejection seat and the movable mold, so that a certain locking force can be provided for the movable mold, the stability of the mold during injection molding is improved, when the mold is ejected out, the ejection seat moves forwards under the action of the ejection block to drive the ejector pin to eject a formed part out of the mold cavity, and then when the mold is closed, the ejection seat can reset under the action of the ejection spring, so that the locking of the ejection mechanism can be effectively prevented, the continuity of injection molding production is improved, and the injection molding efficiency is further improved.

2) The ejection block can adjust the position of the ejection head by rotating the adjusting nut, so as to adjust the ejection distance, can be adjusted according to the actual injection molding production requirement, and is convenient to use.

3) The buffering part is arranged in the ejector pin, so that the phenomenon that the ejector pin directly collides with an injection molding part to eject out in the using process to cause micro deformation of the injection molding part and influence the integrity of the injection molding part is avoided, and the production yield of the injection molding part is greatly improved.

Drawings

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

FIG. 2 is a schematic perspective view of the ejector block of the present invention;

FIG. 3 is an exploded view of the ejector block of the present invention;

FIG. 4 is a cross-sectional view of the present invention;

FIG. 5 is a schematic perspective view of a thimble according to the present invention;

FIG. 6 is a cross-sectional view of the thimble of the present invention.

The reference numbers in the figures are:

1. a guide plate; 2. a movable die holder; 201. a guide post; 3. a movable die mounting plate; 301. a movable mold mounting column; 302. Ejecting a guide rod of the seat; 4. moving the mold; 5. fixing a mold; 6. ejecting a block; 601. ejecting the base; 602. an ejection block connecting part; 603. ejecting the head; 604. adjusting the screw rod; 605. adjusting the nut; 606. adjusting the spring; 7. a thimble; 701. a thimble base rod; 702. a thimble thread head; 703. a buffer rod; 7031. a buffer slide bar; 704. Ejecting a needle head; 7041. a thimble thread part; 705. a rubber block; 706. a buffer spring; 8. ejecting out the through hole; 9. An ejection seat; 10. and ejecting the spring.

Detailed Description

The following description is presented to disclose the utility model so as to enable any person skilled in the art to practice the utility model. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

Referring to fig. 1, an anti-seize injection mold ejection mechanism is characterized by comprising a guide plate 1 and a movable mold base 2, wherein an ejection block 6 is arranged in the middle of the guide plate 1, a guide post 201 is fixedly connected to the rear end of the movable mold base 2, the movable mold base 2 is slidably connected with the guide plate 1 through the guide post 201, a movable mold mounting plate 3 is fixedly connected to the front end of the movable mold base 2, ejection through holes 8 are formed in the middle of the movable mold base 2 and the movable mold mounting plate 3, movable mold mounting posts 301 are fixedly connected to four corners of the front end of the movable mold mounting plate 3, a movable mold 4 is fixedly connected to the front end of the movable mold mounting posts 301, a fixed mold 5 is arranged at the front end of the movable mold 4, a mold cavity is formed by the inner part of the front end of the movable mold 4 and the fixed mold 5, an ejection base 9 is slidably connected to the front end of the movable mold mounting plate 3, ejector pins 7 are fixedly mounted at four corners of the ejection base 9, the front end of the ejector pins 7 penetrate through the movable mold 4 and extend to the mold cavity, an ejection base guide rod 302 is fixedly connected to the movable mold mounting plate 3, the ejection seat 9 is slidably connected with the ejection seat guide rod 302 through a linear bearing, the ejection spring 10 is sleeved outside the ejection seat guide rod 302, one end of the ejection spring 10 is abutted against the ejection seat 9, the other end of the ejection spring is abutted against the movable mold 4, the ejection spring 10 is arranged on the ejection seat, when the mold is closed, two ends of the ejection spring 10 are respectively abutted against the ejection seat 9 and the movable mold 4, a certain locking force can be provided for the movable mold 4, the stability of the mold during injection molding is improved, when the mold is ejected, the ejection seat 9 moves forwards under the action of the ejection block 6 to drive the ejector pin 7 to eject the molded part from the mold cavity, and then when the mold is closed, the ejection seat 9 can reset under the action of the ejection spring 10, so that the clamping of the ejection mechanism can be effectively prevented, the continuity of injection molding production is improved, and the injection molding efficiency is further improved.

The thimble 7 comprises a thimble base rod 701, a buffer rod 703 is slidably connected with the front end of the thimble base rod 701, a thimble head 704 is arranged at the front end of the buffer rod 703, a rubber block 705 is fixedly connected with the front end of the thimble head 704, a thimble thread head 702 is fixedly connected with the rear end of the thimble base rod 701, the thimble base rod 701 is fixedly connected with the ejector seat 9 through the thimble thread head 702, a buffer slide rod 7031 is fixedly connected with the rear end of the buffer rod 703, the rear end of the buffer slide rod 7031 is slidably connected with the inside of the thimble base rod 701, a buffer spring 706 is sleeved outside the buffer slide rod 7031, two ends of the buffer spring 706 are respectively abutted against the thimble base rod 701 and the buffer rod 703, a thimble thread part 7041 is fixedly connected with the rear end of the thimble head 704, the thimble head 704 is threadedly connected with the buffer rod through the thimble thread part 7041, the buffer rod 703 is arranged in the thimble 7, a buffer spring 706 is arranged at the rear end of the buffer rod 703, when the thimble 7 moves forwards, the thimble base rod 701 firstly compresses the buffer spring 706, buffer spring 706 slowly releases the absorbed kinetic energy, and then drives top pillow 704 forward, avoids in the use, and the thimble directly collides the injection molding and is ejecting, causes the micro deformation of injection molding, influences the integrity of injection molding, the production yield of very big improvement injection molding.

The ejection block 6 comprises an ejection base 601, the rear end of the ejection base 601 is fixedly connected with an ejection block connecting part 602, the ejection block 6 is in threaded connection with the guide plate 1 through the ejection block connecting part 602, the middle part of the ejection base 601 is provided with an ejection groove, an ejection head 603 is arranged in the ejection groove, the rear end of the ejection head 603 is fixedly connected with an adjusting screw 604, the adjusting screw 604 penetrates through the ejection block connecting part 602 and extends to the rear end of the ejection block connecting part 602, the adjusting screw 604 extends to the rear end of the ejection block connecting part 602 and is in threaded connection with an adjusting nut 605, an adjusting spring 606 is sleeved outside the adjusting screw 604, one end of the adjusting spring 606 is abutted against the bottom of the ejection groove, the other end is abutted against the rear end of the ejection head 603, the outer diameter of the ejection head 603 is smaller than the diameter of the ejection through hole 8, the ejection block 6 can be adjusted in position on the adjusting screw 604 by rotating the adjusting nut 605, and then under the acting force of the adjusting spring 606, the position of ejection head 603 is adjusted, and then ejection distance is adjusted, can adjust the facilitate the use according to the production demand of moulding plastics of reality.

The using process of the utility model is as follows: firstly, the ejection distance of the ejection block 6 is adjusted according to the size parameters of an actual injection molding part, during demolding, the movable mold 4 is driven by the movable mold base 2 to move backwards to open the mold, when the mold reaches the demolding position, the ejection block 6 on the guide plate 1 ejects the ejection plate 9 forwards through the ejection hole 8, the ejection plate 9 drives the ejector pin 7 to eject the molding part out of the movable mold 4, blanking is completed, and then in the mold closing process, the ejection plate 9 returns to the initial position under the elastic action of the ejection spring 10 to prevent clamping.

In summary, the utility model has the advantages that: through structural design, can effectually prevent that ejection mechanism's card is dead, improve the continuity of the production of moulding plastics, and then improve the efficiency of moulding plastics, simultaneously adjustable ejection distance, convenient to use can avoid the direct collision of thimble and injection molding when ejecting, improves the shaping quality of injection molding.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the utility model, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The anti-sticking injection mold ejection mechanism is characterized by comprising a guide plate (1) and a movable mold base (2), wherein an ejection block (6) is mounted in the middle of the guide plate (1), a guide post (201) is fixedly connected to the rear end of the movable mold base (2), the movable mold base (2) is slidably connected with the guide plate (1) through the guide post (201), a movable mold mounting plate (3) is fixedly connected to the front end of the movable mold base (2), ejection through holes (8) are formed in the middle of the movable mold base (2) and the movable mold mounting plate (3) in a penetrating manner, movable mold mounting posts (301) are fixedly connected to the four corners of the front end of the movable mold mounting plate (3), a movable mold (4) is fixedly connected to the front end of the movable mold mounting post (301), a fixed mold (5) is arranged at the front end of the movable mold (4), and a mold cavity is formed by the inside the front end of the movable mold (4) and the fixed mold (5), movable mould mounting panel (3) front end sliding connection has ejecting seat (9), ejecting seat (9) front end four corners fixed mounting has thimble (7), thimble (7) front end runs through movable mould (4) and extends to the die cavity, thimble (7) include thimble base rod (701), thimble base rod (701) front end sliding connection has buffer beam (703), buffer beam (703) front end is provided with thimble head (704), thimble head (704) front end fixed connection has rubber block (705).

2. The anti-sticking injection mold ejection mechanism as claimed in claim 1, wherein the movable mold mounting plate (3) is fixedly connected with an ejection seat guide rod (302), the ejection seat (9) is slidably connected with the ejection seat guide rod (302) through a linear bearing, an ejection spring (10) is sleeved outside the ejection seat guide rod (302), one end of the ejection spring (10) is abutted against the ejection seat (9), and the other end is abutted against the movable mold (4).

3. The anti-sticking injection mold ejection mechanism as claimed in claim 1, wherein the rear end of the ejector pin base rod (701) is fixedly connected with an ejector pin thread head (702), and the ejector pin base rod (701) is fixedly connected with the ejection seat (9) through the ejector pin thread head (702).

4. The anti-sticking injection mold ejection mechanism of claim 3, wherein a buffer sliding rod (7031) is fixedly connected to a rear end of the buffer rod (703), the rear end of the buffer sliding rod (7031) is slidably connected to the inside of the ejector pin base rod (701), a buffer spring (706) is sleeved outside the buffer sliding rod (7031), and two ends of the buffer spring (706) are respectively abutted to the ejector pin base rod (701) and the buffer rod (703).

5. The anti-sticking injection mold ejection mechanism of claim 4, wherein a thimble thread portion (7041) is fixedly connected to a rear end of the thimble head (704), and the thimble head (704) is in threaded connection with the buffer rod (703) through the thimble thread portion (7041).

6. The anti-sticking injection mold ejection mechanism of claim 1, characterized in that, the ejection block (6) comprises an ejection base (601), an ejection block connecting part (602) is fixedly connected to the rear end of the ejection base (601), and the ejection block (6) is in threaded connection with the guide plate (1) through the ejection block connecting part (602).

7. The anti-sticking injection mold ejection mechanism of claim 6, characterized in that an ejection slot is formed in the middle of the ejection base (601), an ejection head (603) is arranged in the ejection slot, an adjusting screw (604) is fixedly connected to the rear end of the ejection head (603), the adjusting screw (604) penetrates through the ejection block connecting portion (602) and extends to the rear end of the ejection block connecting portion (602), and an adjusting nut (605) is threadedly connected to a position where the adjusting screw (604) extends to the rear end of the ejection block connecting portion (602).

8. The anti-seize injection mold ejection mechanism according to claim 7, wherein the adjusting screw (604) is sleeved with an adjusting spring (606), one end of the adjusting spring (606) abuts against the bottom of the ejection slot, and the other end abuts against the rear end of the ejection head (603).

9. An anti-seize injection mold ejection mechanism according to claim 8, wherein the outer diameter of the ejection head (603) is smaller than the diameter of the ejection through hole (8).