CN213353364U

CN213353364U - Plastic mold with oil cylinder ejection mechanism

Info

Publication number: CN213353364U
Application number: CN202022201422.9U
Authority: CN
Inventors: 邱林达; 白少锋
Original assignee: Kunshan Guanyeda Precision Industry Co ltd
Current assignee: Kunshan Guanyeda Precision Industry Co ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-06-04
Anticipated expiration: 2030-09-30

Abstract

The utility model discloses a plastic mould with an oil cylinder ejection mechanism, which comprises a base, wherein the top of the base is provided with a fixed die, two sides of the bottom of the fixed die are symmetrically provided with buffer slots, the bottom inside the fixed die is provided with a movable cavity, the bottom of the movable cavity which is not two sides is symmetrically provided with second springs, and one side of the two groups of second springs which are close to each other is provided with a buffer block; the utility model discloses the device is through the plastics that finish moulding plastics, when carrying out the drawing of patterns, can carry out ejecting fast to plastics automatically, not only can reduce the manual work and go to manually take out, greatly reduced receives the danger of scald, can also improve the work efficiency who moulds plastics, when moulding plastics simultaneously, through being provided with sealed mechanism, the fused plastics that can significantly reduce flows from the inside of mould, not only can reduce the waste of raw materials, can prevent simultaneously that plastics from finishing the unedged phenomenon of appearance moulding plastics.

Description

Plastic mold with oil cylinder ejection mechanism

Technical Field

The utility model relates to a plastic mold technical field specifically is a plastic mold with hydro-cylinder ejection mechanism.

Background

The plastic mould is a tool which is matched with a plastic forming machine in the plastic processing industry and endows a plastic product with complete configuration and accurate size. The plastic mould is a tool for producing plastic products, which is composed of several groups of parts, a forming mould cavity is arranged in the combination, when in injection molding, the mould is clamped on an injection molding machine, molten plastic is injected into the forming mould cavity and is cooled and shaped in the cavity, then an upper mould and a lower mould are separated, the products are ejected out of the mould cavity through an ejection system and leave the mould, finally the mould is closed again for next injection molding, and the whole injection molding process is carried out in a circulating way;

however, the existing plastic mould has certain defects in use:

1. after the existing mold is used for plastic injection molding, plastic is often adhered to the interior of the mold, and the plastic surface is high in temperature, so that the plastic is inconvenient to take out directly by hands, and the plastic needs to be cooled, so that the plastic can be taken out, and the time is delayed;

2. meanwhile, in the injection molding process, because two groups of molds are used for a long time, the abrasion of the molds can be caused, the deviation is generated during installation, and molten plastic leaks from gaps during injection molding, so that more burrs are generated on the plastic;

3. meanwhile, when the two groups of molds are closed through the oil cylinders, the molds are damaged and abraded due to large impact force, and injection molding plastic is poor in quality.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a plastic mold with hydro-cylinder ejection mechanism to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a plastic mold with an oil cylinder ejection mechanism comprises a base, wherein a fixed mold is arranged at the top of the base, buffer grooves are symmetrically arranged at two sides of the bottom of the fixed mold, a movable cavity is arranged at the bottom inside the fixed mold, second springs are symmetrically arranged at the bottoms of two sides inside the movable cavity, two groups of second springs are arranged at one side close to each other, a first spring is arranged at the middle position of the bottom inside the movable cavity, a movable plate is arranged at the top of the first spring, buffer rods are symmetrically arranged at two sides of the bottom of the movable plate, the bottoms of the buffer rods extend into the buffer grooves, a plurality of groups of ejector rods are arranged at the top of the movable plate, ejector blocks are arranged at the tops of the ejector rods, the tops of the ejector rods extend out of the movable cavity, sliding grooves are symmetrically arranged at two sides of the top of the movable plate, compression rods are symmetrically arranged at, the tops of the two groups of compression rods extend to the inside of the sliding groove, the outer sides of the two groups of compression rods are sleeved with third springs, mounting plates are arranged at the middle positions of the two sides of the fixed die, oil cylinders are arranged at the tops of the two mounting plates, movable dies are arranged at the tops of the two oil cylinders, a second annular convex block is arranged at the edge of the top of the fixed die, a sealing groove is arranged at the middle position of the outer side of the second annular convex block, the two sides of the bottom of the movable mold are symmetrically provided with sliding rods, the bottoms of the sliding rods extend to the inside of the sliding grooves, a first annular bump is arranged at the edge of the bottom of the movable mold, a sealing ring is arranged in the middle of the inner side of the first annular bump, the sealing ring and the sealing groove are matched with each other, a control panel is arranged in the middle of one end of the front face of the fixed die, and the control panel is electrically connected with the oil cylinder through a wire.

Preferably, the cross sections of the sealing ring and the sealing groove are connected in a trapezoid shape, and the sealing ring is made of rubber.

Preferably, the bottom of mounting panel is provided with the strengthening rib, and the strengthening rib is the slope setting.

Preferably, one side of the buffer block, which is far away from the buffer rod, is provided with a limiting rod, and one side of the limiting rod extends out of the inner part of the fixed die.

Preferably, the top of the compression rod is provided with a limiting block, and the top of the third spring is fixedly connected with the limiting block.

Preferably, an injection molding opening is formed in the middle of the top of the movable mold, and the injection molding hole penetrates through the inside of the movable mold.

Compared with the prior art, the beneficial effects of the utility model are that: the plastic mould with the oil cylinder ejection mechanism can automatically and quickly eject plastic when demoulding, so that the danger of scalding caused by manual taking out can be reduced, the working efficiency of injection moulding can be improved, meanwhile, when injection moulding is carried out, a sealing mechanism is arranged, the outflow of molten plastic from the inside of the mould can be greatly reduced, the waste of raw materials can be reduced, the phenomenon of burrs of the plastic after injection moulding is finished can be prevented, and finally, when mould closing is carried out, the movable mould is buffered through a buffering mechanism, the impact force of the movable mould during mould closing is greatly reduced, the damage of a larger impact force to the fixed mould is prevented, and the service life of the mould is prolonged;

1. through the mutual matching among the first spring, the ejector rod, the ejector block, the oil cylinder, the compression rod, the third spring and the movable plate, when demoulding is carried out on the plastic after injection molding, the plastic can be automatically and quickly ejected out, so that the danger of scalding caused by manual taking out can be reduced, and the working efficiency of injection molding can be improved;

2. through the mutual matching among the first annular convex block, the sealing ring, the second annular convex block and the sealing groove, when the injection molding is carried out, the sealing mechanism is arranged, so that the molten plastic can be greatly reduced from flowing out of the mold, the waste of raw materials can be reduced, and the phenomenon of burrs of the plastic after the injection molding can be prevented;

3. through mutually supporting between buffer block, buffer beam, first spring, dashpot, slide bar, compression pole, second spring, third spring and the spout, when carrying out the compound die, through the mechanism of buffering, cushion the movable mould, the impact force of the movable mould that significantly reduces when the compound die prevents the damage of great impact force to the cover half, improves the life of mould.

Drawings

Fig. 1 is a front sectional view of the present invention;

fig. 2 is an enlarged schematic view of the structure at a in fig. 1 according to the present invention;

fig. 3 is an enlarged schematic view of the structure at B of fig. 1 according to the present invention;

fig. 4 is a front view of the present invention.

In the figure: 1. a base; 2. a buffer block; 3. a buffer rod; 4. a first spring; 5. a movable cavity; 6. a buffer tank; 7. fixing a mold; 8. a top rod; 9. mounting a plate; 10. a top block; 11. moving the mold; 12. an oil cylinder; 13. a slide bar; 14. a compression rod; 15. a second spring; 16. a third spring; 17. a chute; 18. a first annular projection; 19. a seal ring; 20. a second annular bump; 21. a sealing groove; 22. a movable plate; 23. a control panel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides an embodiment: a plastic mould with an oil cylinder ejection mechanism comprises a base 1, a fixed mould 7 is arranged at the top of the base 1, buffer grooves 6 are symmetrically arranged at two sides of the bottom of the fixed mould 7, a movable cavity 5 is arranged at the bottom inside the fixed mould 7, second springs 15 are symmetrically arranged at the bottom of two sides inside the movable cavity 5, buffer blocks 2 are arranged at one sides of two groups of second springs 15 close to each other, a first spring 4 is arranged at the middle position of the bottom inside the movable cavity 5, a movable plate 22 is arranged at the top of the first spring 4, buffer rods 3 are symmetrically arranged at two sides of the bottom of the movable plate 22, the bottom of each buffer rod 3 extends to the inside of each buffer groove 6, a plurality of groups of ejector rods 8 are arranged at the top of the movable plate 22, the plastic after injection molding is ejected, ejector blocks 10 are arranged at the tops of the ejector rods 8, the tops of the ejector rods 8 extend out of the inside of the, compression rods 14 are symmetrically arranged on two sides of the top of a movable plate 22, the tops of two groups of compression rods 14 extend into a sliding groove 17, a third spring 16 is sleeved on the outer sides of the two groups of compression rods 14, mounting plates 9 are arranged at the middle positions of two sides of a fixed die 7, oil cylinders 12 are arranged at the tops of the two groups of mounting plates 9, movable dies 11 are arranged at the tops of the two groups of oil cylinders 12, second annular bumps 20 are arranged at the edges of the tops of the fixed die 7, sealing grooves 21 are arranged at the middle positions of the outer sides of the second annular bumps 20, sliding rods 13 are symmetrically arranged on two sides of the bottom of the movable dies 11, the bottoms of the sliding rods 13 extend into the sliding groove 17, first annular bumps 18 are arranged at the edges of the bottoms of the movable dies 11, sealing rings 19 are arranged at the middle positions of the inner sides of the first annular bumps 18, sealing between the movable dies 11, the control panel 23 is electrically connected to the oil cylinder 12 through a wire.

In this implementation, the cross section of sealing washer 19 and seal groove 21 connects and is trapezoidal, the material of sealing washer 19 is rubber, it is inseparabler to make sealing washer 19 seal up cover half 7 and movable mould 11, the bottom of mounting panel 9 is provided with the strengthening rib, and the strengthening rib is the slope setting, improve mounting panel 9's stability, one side that buffer block 2 kept away from buffer rod 3 is provided with the gag lever post, and gag lever post one side extends the inside of cover half 7, prevent that skew from appearing in buffer block 2, the top of compression rod 14 is provided with the stopper, the top and the stopper fixed connection of third spring 16, prevent droing of third spring 16, the intermediate position department at movable mould 11 top is provided with the mouth of moulding plastics, and the hole of moulding plastics runs through the inside of movable mould 11, mould plastics.

The working principle is as follows: firstly, the control panel 23 is powered on, the oil cylinder 12 is opened through the control panel 23, the oil cylinder 12 without trouble simultaneously drives the movable mold 11 to approach the fixed mold 7 for mold closing, at this time, the movable mold 11 drives the first annular bump 18 to approach the second annular bump 20, so that the first annular bump 18 completely surrounds the second annular bump 20, at the same time, the sealing ring 19 is driven by the first annular bump 18 to move into the sealing groove 21, sealing between the movable mold 11 and the fixed mold 7 is completed, at the same time, the movable mold 11 drives the sliding rod 13 to move downwards in the sliding groove 17, the sliding rod 13 presses the compression rod 14 downwards, the compression rod 14 drives the third spring 16 to compress for buffering, at the same time, the two sets of compression rods 14 drive the movable plate 22 and the two sets of buffer rods 3 to move downwards, the two sets of buffer rods 3 push the two sets of buffer blocks 2 to both sides, and extrude the two sets of second springs 15, the buffering is carried out again, meanwhile, the mandril 8 moves downwards along with the movable plate 22, and the first spring 4 is compressed along with the movement;

the injection molding of plastics is carried out through the mouth of moulding plastics inside movable mould 11, after the completion of moulding plastics, open hydro-cylinder 12 through control panel 23 this moment for two sets of hydro-cylinders 12 drive movable mould 11 rebound, when movable mould 11 moved up, slide bar 13 removed the press to compression rod 14, push up compression rod 14 under the effect of third spring 16, first spring 4 pushes up fly leaf 22 simultaneously, thereby make fly leaf 22 actuate ejector pin 8 and kicking block 10 and upwards move, push out plastics to kicking block 10, accomplish the drawing of patterns to plastics.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims

1. The utility model provides a plastic mold with hydro-cylinder ejection mechanism, includes base (1), its characterized in that: the top of the base (1) is provided with a fixed die (7), bilateral symmetry of the bottom of the fixed die (7) is provided with buffer slots (6), the bottom of the inner part of the fixed die (7) is provided with a movable cavity (5), bottom symmetry of two sides in the movable cavity (5) is provided with second springs (15), two groups of second springs (15) are arranged on one side close to each other and are provided with buffer blocks (2), a first spring (4) is arranged at the middle position of the inner bottom of the movable cavity (5), a movable plate (22) is arranged at the top of the first spring (4), buffer rods (3) are symmetrically arranged on two sides of the bottom of the movable plate (22), the bottom of each buffer rod (3) extends to the inner part of each buffer slot (6), a plurality of groups of ejector rods (8) are arranged at the top of each movable plate (22), an ejector block (10) is arranged at the top of each, the top of the ejector rod (8) extends out of the interior of the movable cavity (5), sliding grooves (17) are symmetrically formed in two sides of the top of the movable cavity (5), compression rods (14) are symmetrically formed in two sides of the top of the movable plate (22), the tops of the compression rods (14) extend into the sliding grooves (17), a third spring (16) is sleeved on the outer sides of the compression rods (14), a mounting plate (9) is arranged at the middle positions of two sides of the fixed die (7), oil cylinders (12) are arranged at the tops of the mounting plate (9), movable dies (11) are arranged at the tops of the oil cylinders (12), second annular convex blocks (20) are arranged at the edges of the tops of the fixed die (7), sealing grooves (21) are formed in the middle positions of the outer sides of the second annular convex blocks (20), and sliding rods (13) are symmetrically formed in two sides of the bottoms of the movable, the bottom of slide bar (13) extends to the inside of spout (17), the edge of movable mould (11) bottom is provided with first annular lug (18), the inboard intermediate position department of first annular lug (18) is provided with sealing washer (19), sealing washer (19) and seal groove (21) mutual adaptation, the intermediate position department of the positive one end of cover half (7) is provided with control panel (23), control panel (23) are connected through wire and hydro-cylinder (12) electricity.

2. The plastic mold with the oil cylinder ejection mechanism as claimed in claim 1, wherein: the cross section of sealing washer (19) and seal groove (21) connects and is trapezoidal, the material of sealing washer (19) is rubber.

3. The plastic mold with the oil cylinder ejection mechanism as claimed in claim 1, wherein: the bottom of mounting panel (9) is provided with the strengthening rib, and the strengthening rib is the slope setting.

4. The plastic mold with the oil cylinder ejection mechanism as claimed in claim 1, wherein: one side of the buffer block (2) far away from the buffer rod (3) is provided with a limiting rod, and one side of the limiting rod extends out of the inner part of the fixed die (7).

5. The plastic mold with the oil cylinder ejection mechanism as claimed in claim 1, wherein: the top of the compression rod (14) is provided with a limiting block, and the top of the third spring (16) is fixedly connected with the limiting block.

6. The plastic mold with the oil cylinder ejection mechanism as claimed in claim 1, wherein: and an injection molding opening is formed in the middle of the top of the movable mold (11), and an injection molding hole penetrates through the inside of the movable mold (11).