CN212288664U

CN212288664U - Plastic bottle blow molding mold

Info

Publication number: CN212288664U
Application number: CN201922344340.7U
Authority: CN
Inventors: 李建春; 李开宏
Original assignee: Jiangsu Rui Hong Plastics Co ltd
Current assignee: Jiangsu Rui Hong Plastics Co ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2021-01-05
Anticipated expiration: 2029-12-24

Abstract

The utility model discloses a plastic bottle blow molding mould, including left mould, the right flank of left side mould is provided with left bottle type, the hinge that passes through of left side mould rotates and is connected with right mould, the left flank of right side mould is provided with right bottle type, the right flank of right side mould is provided with the hemisphere groove, the inside of right side mould and the lower part that is located the hemisphere groove are provided with the fixed slot, the internal surface rotation in hemisphere groove is connected with the hemisphere piece, the lower fixed surface of hemisphere piece is connected with the connecting rod, connecting rod and fixed slot swing joint. The utility model discloses in, be divided into the triplex with the plastic bottle model, accomplish the back at the blowing, lower die structure inhales the plastic bottle tightly, later will control the mould separation, release the plastic bottle from the lower mould through sliding construction, blow to the clearance between plastic bottle and the bottle end type simultaneously, make the contact surface quickly separating of plastic bottle and bottle end type through the air current effect, make the plastic bottle basal surface after the demolding more level and more smooth.

Description

Plastic bottle blow molding mold

Technical Field

The utility model relates to a plastics processing technology field especially relates to a plastic bottle blow molding mould.

Background

The plastic bottle is mainly made of polyethylene or polypropylene and other materials with a plurality of organic solvents. The plastic bottle widely uses Polyester (PET), Polyethylene (PE) and polypropylene (PP) as raw materials, and is a plastic container which is added with a corresponding organic solvent, heated at high temperature, blown, extruded and blown or injection molded by a plastic mold. The packaging container is mainly used for liquid or solid disposable plastic packaging containers of beverages, foods, pickles, honey, dried fruits, edible oil, agricultural and veterinary medicines and the like. The plastic bottle has the characteristics of low breakage probability, low cost, high transparency, food-grade raw materials and the like.

The existing plastic bottle mold is mostly of a two-half type opening and closing structure, the mold structure is simple, but the mold stripping after blow molding is not very convenient, and therefore, the mold stripping structure of the mold needs to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a plastic bottle blow molding mold.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the die comprises a left die, wherein a left bottle shape is arranged on the right side surface of the left die, the left die is rotatably connected with a right die through a hinge, a right bottle shape is arranged on the left side surface of the right die, a hemispherical groove is arranged on the right side surface of the right die, a fixing groove is arranged in the right die and positioned at the lower part of the hemispherical groove, the inner surface of the hemispherical groove is rotatably connected with a hemispherical block, a connecting rod is fixedly connected with the lower surface of the hemispherical block, the connecting rod is movably connected with the fixing groove, a lower die is arranged at the lower part of the left die and positioned at the lower part of the right die, a bottle bottom shape is arranged on the upper surface of the lower die, a chute is arranged in the middle of the lower die, a sliding block is slidably connected with the inner surface of the chute, a sliding rod is fixedly connected with the lower surface of the sliding block, an elastic sealing, the lower surface of the lower die is fixedly connected with an air inlet.

As a further description of the above technical solution:

the contact surface of the left die and the right die is a first parting surface, and the contact surface of the left die, the contact surface of the right die and the lower die is a second parting surface.

As a further description of the above technical solution:

the first parting surface is provided with a blow molding opening at the upper part, the left bottle type, the right bottle type and the bottle bottom type form a plastic bottle model, and the blow molding opening is communicated with the upper part of the plastic bottle model.

As a further description of the above technical solution:

the side surface of the bottle bottom shape is vertically upward, and the second sectional surface is in a step shape.

As a further description of the above technical solution:

the middle part of hemisphere piece is provided with the spread groove, the outside of spread groove and the upper surface that is located the hemisphere piece are provided with the chute, the internal surface of spread groove rotates and is connected with the dead lever, the surface of dead lever just is located fixedly connected with pull rod in the spread groove.

As a further description of the above technical solution:

the gas inlet and outlet structure is formed by the gas through holes and the gas inlets, two groups of gas inlet and outlet structures are arranged, the two groups of gas inlet and outlet structures are symmetrical about the bilateral symmetry plane of the lower die, and the two groups of gas inlet and outlet structures are communicated with the sliding groove.

The utility model discloses following beneficial effect has:

compared with the prior art, the plastic bottle blow molding mold has the advantages that the plastic bottle model is divided into three parts, after blow molding is completed, the lower mold structure tightly sucks the plastic bottle, the left mold and the right mold are separated, the plastic bottle is pushed out from the lower mold through the sliding structure, meanwhile, air is blown into a gap between the plastic bottle and the bottle bottom mold, the contact surface between the plastic bottle and the bottle bottom mold is quickly separated through the air flow effect, and the bottom surface of the plastic bottle after being discharged from the mold is smoother.

Drawings

Fig. 1 is a front sectional view of a plastic bottle blow molding mold according to the present invention;

fig. 2 is a rear view of a plastic bottle blow molding mold according to the present invention;

fig. 3 is a side view of a hemisphere block of a plastic bottle blow molding mold according to the present invention.

Illustration of the drawings:

1. a left die; 2. a left flask shape; 3. a blow molding port; 4. a first parting surface; 5. right bottle shape; 6. a right die; 7. connecting grooves; 8. a pull rod; 9. fixing the rod; 10. a hemispherical groove; 11. a hemispherical block; 12. fixing grooves; 13. a connecting rod; 14. introducing gas; 15. an air inlet; 16. a chute; 17. an elastic sealing ring; 18. a slide bar; 19. a slider; 20. a lower die; 21. a second parting plane; 22. a bottle bottom type; 23. a hinge; 24. a chute.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the utility model provides a pair of plastic bottle blow molding mould: comprises a left die 1, a left bottle model 2 is arranged on the right side surface of the left die 1, a plastic bottle blow molding model, a right die 6 is rotatably connected with the left die 1 through a hinge 23, a right bottle model 5 is arranged on the left side surface of the right die 6, the plastic bottle blow molding model is provided, a hemisphere groove 10 is arranged on the right side surface of the right die 6, a fixed groove 12 is arranged in the right die 6 of the right die 6 and positioned at the lower part of the hemisphere groove 10, a hemisphere block 11 is rotatably connected with the inner surface of the hemisphere groove 10 and used for driving the right die 6 to be separated from the left die 1 and a lower die 20, a connecting rod 13 is fixedly connected with the lower surface of the hemisphere block 11 and used for connecting the hemisphere block 11 and the hemisphere groove 10, the connecting rod 13 is movably connected with the fixed groove 12, a lower die 20 is arranged at the lower part of the left die 1 and positioned at the lower part of the right die 6, a bottle bottom model 22 is arranged on the upper surface of the lower, the mold stripping device is used during mold stripping, a sliding rod 18 is fixedly connected to the lower surface of the sliding block 19 and used for driving the sliding block 19 to move, an elastic sealing ring 17 is arranged on the outer surface of the sliding rod 18 and located on the lower portion of the sliding groove 16 to prevent air flow from being communicated with the outside from a gap between the sliding rod 18 and the lower mold 20, an air vent 14 is arranged inside the lower mold 20, and an air inlet 15 is fixedly connected to the lower surface of the lower mold 20 and used for being connected.

The contact surface of the left mold 1 and the right mold 6 is a first parting surface 4, the contact surface of the left mold 1, the right mold 6 and the lower mold 20 is a second parting surface 21, a blow molding port 3 is arranged at the upper part of the first parting surface 4 and is positioned at the upper part, a port for adding plastics is arranged, the left bottle type 2, the right bottle type 5 and the bottle bottom type 22 form a plastic bottle model, the blow molding port 3 is communicated with the upper part of the plastic bottle model, the side surface of the bottle bottom type 22 is vertically upward, the second parting surface 21 is in a step shape, a connecting groove 7 is arranged at the middle part of the hemispherical block 11, a chute 24 is arranged at the outer side of the connecting groove 7 and is positioned at the upper surface of the hemispherical block 11, so that the transition between the pull rod 8 and the connecting groove 7 is smoother, a fixed rod 9 is rotatably connected to the inner surface of the connecting groove 7, the pull rod 8 is fixedly connected to the outer surface, the air inlet and outlet structures are arranged in two groups, the two groups of air inlet and outlet structures are symmetrical about the bilateral symmetry plane of the lower die 20, and the two groups of air inlet and outlet structures are communicated with the sliding groove 16.

The working principle is as follows: after the blow molding is finished, the slide bar 18 is pulled to drive the slide block 19 to move downwards, at the same time, the air pump generates suction force in the air inlet and outlet structure, the plastic bottle is sucked into the bottle bottom 22 under the action of negative pressure, the pull rod 8 is pulled, the hemispherical block 11 is pulled through the connection relation between the fixed rod 9 and the connecting groove 7, the hemispherical block 11 drives the right mold 6 to rotate through the connection relation between the fixed groove 12 and the connecting rod 13, so that the plastic bottle is separated from the right bottle shape 5, after the plastic bottle is separated from the left bottle shape 2, the slide bar 18 is pushed to drive the slide block 19 to move upwards and make the lower surface of the slide block 19 exceed the bottom surface of the bottle bottom 22, the air pump blows air to the air outlet structure, the air enters the slide groove 16 through the air inlet 15 and the air passage 14, and blows air through the gap between the slide groove 16 and the slide block 19 and the bottle bottom 22 to assist in the separation of the plastic bottle from the bottle bottom 22, so that the connection is loosened, and the plastic bottle is convenient to demould and is convenient to discharge.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a plastic bottle blow molding mould, includes left mould (1), its characterized in that: the right side surface of the left die (1) is provided with a left bottle type (2), the left die (1) is rotatably connected with a right die (6) through a hinge (23), the left side surface of the right die (6) is provided with a right bottle type (5), the right side surface of the right die (6) is provided with a semispherical groove (10), the inner part of the right die (6) and the lower part of the semispherical groove (10) are provided with a fixed groove (12), the inner surface of the semispherical groove (10) is rotatably connected with a semispherical block (11), the lower surface of the semispherical block (11) is fixedly connected with a connecting rod (13), the connecting rod (13) is movably connected with the fixed groove (12), the lower part of the left die (1) and the lower part of the right die (6) are provided with a lower die (20), the upper surface of the lower die (20) is provided with a bottle bottom type (22), the middle part of the lower die (20), the internal surface sliding connection of spout (16) has slider (19), the lower fixed surface of slider (19) is connected with slide bar (18), the surface of slide bar (18) and the lower part that is located spout (16) are provided with elasticity sealing washer (17), the inside of lower mould (20) is provided with gaseous expert (14), the lower fixed surface of lower mould (20) is connected with air inlet (15).

2. The plastic bottle blow molding mold of claim 1, wherein: the contact surface of the left die (1) and the right die (6) is a first parting surface (4), and the contact surface of the left die (1), the right die (6) and the lower die (20) is a second parting surface (21).

3. A plastic bottle blow molding mold in accordance with claim 2, wherein: the plastic bottle mold is characterized in that a blow molding opening (3) is formed in the position, located on the upper portion, of the first parting surface (4), the left bottle mold (2), the right bottle mold (5) and the bottle bottom mold (22) form a plastic bottle mold, and the blow molding opening (3) is communicated with the upper portion of the plastic bottle mold.

4. The plastic bottle blow molding mold of claim 1, wherein: the middle part of hemisphere piece (11) is provided with spread groove (7), the outside of spread groove (7) and the upper surface that is located hemisphere piece (11) are provided with chute (24), the internal surface rotation of spread groove (7) is connected with dead lever (9), the surface of dead lever (9) just is located spread groove (7) internal fixation and is connected with pull rod (8).

5. The plastic bottle blow molding mold of claim 1, wherein: the air inlet and outlet structure is formed by the air vent (14) and the air inlet (15), two sets of air inlet and outlet structures are arranged, the two sets of air inlet and outlet structures are symmetrical relative to the bilateral symmetry plane of the lower die (20), and the two sets of air inlet and outlet structures are communicated with the sliding groove (16).