CN219006978U

CN219006978U - Plastic bottle blow molding mouth removing device

Info

Publication number: CN219006978U
Application number: CN202223338719.5U
Authority: CN
Inventors: 蔡诗滨
Original assignee: Jiashan Yingfa Packaging Products Co ltd
Current assignee: Jiashan Yingfa Packaging Products Co ltd
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-05-12
Anticipated expiration: 2032-12-12

Abstract

The utility model relates to the technical field of blow molding, in particular to a plastic bottle blow molding opening removing device, which comprises a split mold, a controller and a cutting mechanism, wherein the cutting mechanism comprises a telescopic component, two cutters and two buffer components, the two cutters are inserted into the inner wall of the split mold, the telescopic component is arranged on the outer wall of the split mold, the two cutters are fixedly connected with the telescopic component, the two buffer components are symmetrically arranged at two ends of the split mold, and the telescopic component is electrically connected with the controller.

Description

Plastic bottle blow molding mouth removing device

Technical Field

The utility model relates to the technical field of blow molding, in particular to a plastic bottle blow molding opening removing device.

Background

Blow molding, also known as hollow blow molding, is a rapidly developing method of processing plastics. The blow molding process began to be used to produce low density polyethylene vials during the second world war. In the later 50 s, with the advent of high density polyethylene and the development of blow molding machines, blow molding technology has been widely used. Hollow containers can be thousands of liters in volume, and some have been computer controlled. Suitable plastics for blow molding are polyethylene, polyvinyl chloride, polypropylene, polyester, etc., and the resulting hollow containers are widely used as industrial packaging containers. Blow molding can be classified into extrusion blow molding and injection blow molding according to parison making methods, and multi-layer blow molding and stretch blow molding have been newly developed.

The plastic bottle is mainly made of polyethylene or polypropylene and various organic solvents are added, polyester (PET), polyethylene (PE) and polypropylene (PP) are widely used as raw materials, after the corresponding organic solvents are added, the plastic bottle is heated at high temperature and then is subjected to blow molding, extrusion blowing or injection molding through a plastic mold, and in the blow molding process, the plastic bottle is close to a blow molding opening, namely a water gap position in a mold closing mode, and part of residual materials overflow.

The prior art has the following defects:

1. the overflowed waste material is needed to be cut off after being manually taken out of the mould, which is time-consuming and labor-consuming and reduces the delivery speed of the plastic bottle.

2. The plastic bottle is switched through cutting errors easily generated by manual cutting, so that the rejection rate is improved, personnel scratch is easily caused, and certain potential safety hazards are realized.

Disclosure of Invention

The utility model aims to provide a plastic bottle blow molding opening removing device.

To achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a plastic bottle blowing mouth remove device, including to the die sinking, still include controller and cutting mechanism, cutting mechanism establishes on the outer wall to the die sinking in order to be used for excision waste material, and cutting mechanism includes flexible subassembly, two cutters and two buffer assembly, and two cutters are all inserted and are established on the inner wall to the die sinking, and flexible subassembly is established on the outer wall to the die sinking, and two cutters all with flexible subassembly fixed connection, two buffer assembly are the symmetry setting at the both ends to the die sinking, and flexible subassembly is connected with the controller electricity.

Preferably, the split die comprises a left half die and a right half die, the right half die is inserted on the outer wall of the left half die through four guide posts, slots are formed in the outer walls of the left half die and the right half die, and each cutter is inserted between two adjacent slots.

Preferably, the top of the left half mould and the top of the right half mould are respectively provided with a half conical water gap.

Preferably, the inner walls of the left half mold and the right half mold are respectively provided with a half cavity for molding a plastic bottle, one end of each half conical water gap, which is close to one half cavity, is respectively provided with a containing groove for inserting a cutter, and each half conical water gap is communicated with one half cavity.

Preferably, the telescopic assembly comprises a bidirectional electric push rod and two pull plates, the bidirectional electric push rod is fixedly arranged on the outer wall of the left half die, the two pull plates are respectively fixedly arranged on two output ends of the bidirectional electric push rod, each pull plate is fixedly connected with one end of one cutter, which is far away from the accommodating groove, and the bidirectional electric push rod is electrically connected with the controller.

Preferably, each buffer assembly comprises a guide rod, a buffer spring and a limiting block, the limiting block is fixedly arranged on the outer wall of the left half die, the guide rod is fixedly arranged on the outer wall of the limiting block, the buffer spring is sleeved on the outer wall of the guide rod, the guide rod is connected with the pulling plate in an inserting mode, and the limiting block and the pulling plate are respectively abutted to the two ends of the buffer spring.

The utility model has the beneficial effects that:

1. according to the utility model, by designing the telescopic component and the two cutters, when the blow molding of the two plastic bottles is finished, the two-way electric push rod is started through the controller, and as the two pull plates are fixedly connected with the two output ends of the two-way electric push rod respectively, each pull plate is fixedly connected with one end of one cutter far away from the accommodating groove, and further the two cutters are driven to slide towards one end close to the accommodating groove in the interior of the two slots, when the two cutters slide in place, overflow waste materials in the four semi-conical water gaps are cut off, and the waste materials are not required to be removed after manual mould taking, so that labor is saved, the leaving speed of the plastic bottles is improved, and meanwhile, the labor cost is saved and the labor amount of workers is reduced.

2. According to the utility model, the buffer assembly, namely the guide rod, the buffer spring and the limiting block, is designed, when the waste is cut, the buffer spring is converted from the stretching state to the shrinking state, so that the pulling plate slides at a constant speed, the cutter on the pulling plate is driven to slide at a constant speed horizontally, the waste is cut, the phenomenon that the bottleneck of the plastic bottle is damaged due to the fact that the waste passes through the block at a constant speed is prevented, the effect of protecting the quality of the plastic bottle is achieved, the blowing quality of the plastic bottle is further improved, the rejection rate is reduced, meanwhile, the fingers are prevented from being scratched by personnel, the potential safety hazard is reduced, and the safety of production is improved.

3. According to the utility model, four half-cavities are designed, and each two half-cavities are combined to form the integral cavity for blow molding of one plastic bottle, so that two plastic bottles can be blow molded simultaneously after each mold closing, the blow molding efficiency is improved, meanwhile, the cutting mechanism is designed to cut off overflowing waste at the blow molding opening position of two plastic bottles simultaneously, and the cutting efficiency is greatly improved.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present utility model, the following description briefly describes the drawings in the embodiments of the present utility model.

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

fig. 2 is an enlarged view at a in fig. 1;

FIG. 3 is a schematic perspective view of the present utility model with the right mold half removed;

FIG. 4 is an enlarged view at B in FIG. 3;

FIG. 5 is a schematic plan view of the left mold half of the present utility model;

FIG. 6 is an enlarged view at C in FIG. 5;

in the figure: the die comprises a split die 1, a cutting mechanism 2, a telescopic component 3, a cutter 4, a buffer component 5, a left half die 6, a right half die 7, a slot 8, a semi-conical water gap 9, a semi-cavity 10, a containing groove 11, a bidirectional electric push rod 12, a pull plate 13, a guide rod 14, a buffer spring 15 and a limiting block 16.

Detailed Description

The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.

Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to be limiting of the present patent; for the purpose of better illustrating embodiments of the utility model, certain elements of the drawings may be omitted, enlarged or reduced in size and do not represent the actual product dimensions.

Referring to fig. 1, a plastic bottle blow molding mouth remove device, including to die 1, still include controller and cutting mechanism 2, cutting mechanism 2 establishes on the outer wall to die 1 in order to be used for cutting the waste material, and cutting mechanism 2 includes flexible subassembly 3, two cutters 4 and two buffer assemblies 5, and two cutters 4 all insert and establish on the inner wall to die 1, and flexible subassembly 3 establishes on the outer wall to die 1, and two cutters 4 all with flexible subassembly 3 fixed connection, and two buffer assemblies 5 are the symmetry and set up at the both ends to die 1, and flexible subassembly 3 is connected with the controller electricity.

Referring to fig. 2, the split mold 1 comprises a left half mold 6 and a right half mold 7, the right half mold 7 is inserted on the outer wall of the left half mold 6 through four guide posts, slots 8 are respectively formed on the outer walls of the left half mold 6 and the right half mold 7, each cutter 4 is inserted between two adjacent slots 8, a tubular plastic parison obtained by extrusion or injection molding of thermoplastic resin is placed in the left half mold 6 and the right half mold 7 while hot, compressed air is introduced into the parison through four half conical water gaps 9 immediately after mold closing, the plastic parison is inflated and tightly attached to the inner walls of the four half cavities 10, and two plastic bottles are obtained by cooling and demolding.

Referring to fig. 4, the top of the left half mold 6 and the top of the right half mold 7 are respectively provided with a half-cone nozzle 9, the two half-cone nozzles 9 are combined to form a cone nozzle, compressed air is conveniently introduced into the four half cavities 10 from the four half-cone nozzles 9, and when two plastic bottles are blown well, redundant materials overflow at one end of the plastic bottle mouth, which is close to the half-cone nozzle 9, so that waste materials are formed.

Referring to fig. 3 and 6, the inner walls of the left half mold 6 and the right half mold 7 are respectively provided with a half cavity 10 for plastic bottle molding, one end of each half conical water gap 9, which is close to one half cavity 10, is respectively provided with a containing groove 11 for the cutter 4 to insert, each half conical water gap 9 is communicated with one half cavity 10, the containing grooves 11 facilitate the cutter 4 to insert and cut off overflowing waste, and each half conical water gap 9 is communicated with one half cavity 10, so that compressed air is conveniently introduced to enable plastic bottles to be blow molded.

Referring to fig. 2, the telescopic assembly 3 includes a bidirectional electric push rod 12 and two pull plates 13, the bidirectional electric push rod 12 is fixedly arranged on the outer wall of the left half die 6, the two pull plates 13 are respectively fixedly arranged on two output ends of the bidirectional electric push rod 12, each pull plate 13 is fixedly connected with one end of one cutter 4 far away from the accommodating groove 11, the bidirectional electric push rod 12 is electrically connected with the controller, when the blow molding of two plastic bottles is finished, the bidirectional electric push rod 12 is started through the controller, as the two pull plates 13 are respectively fixedly connected with two output ends of the bidirectional electric push rod 12, each pull plate 13 is fixedly connected with one end of one cutter 4 far away from the accommodating groove 11, and then the two cutters 4 are driven to slide towards one end close to the accommodating groove 11 in the interior of the two slots 8.

Referring to fig. 2, each buffer assembly 5 includes a guide rod 14, a buffer spring 15 and a limiting block 16, the limiting block 16 is fixedly arranged on the outer wall of the left half mold 6, the guide rod 14 is fixedly arranged on the outer wall of the limiting block 16, the buffer spring 15 is sleeved on the outer wall of the guide rod 14, the guide rod 14 is inserted with the pulling plate 13, the limiting block 16 and the pulling plate 13 are respectively abutted against two ends of the buffer spring 15, when waste materials overflow through cutting, the buffer spring 15 is converted from stretching to shrinking, so that the pulling plate 13 slides at a constant speed, the cutter 4 on the pulling plate 13 slides at a constant speed, the waste materials are cut, the bottleneck of a plastic bottle is prevented from being damaged due to speed passing, the effect of protecting the quality of the plastic bottle is achieved, and the blow molding quality of the plastic bottle is further promoted advantageously.

Claims

1. The utility model provides a plastic bottle blowing mouth remove device, includes to die sinking (1), its characterized in that: still include controller and cutting mechanism (2), cutting mechanism (2) are established on the outer wall to die sinking (1) in order to be used for excision waste material, cutting mechanism (2) are including flexible subassembly (3), two cutters (4) and two buffer assembly (5), two cutters (4) are all inserted and are established on the inner wall to die sinking (1), flexible subassembly (3) are established on the outer wall to die sinking (1), and two cutters (4) all with flexible subassembly (3) fixed connection, two buffer assembly (5) are the symmetry and set up at the both ends to die sinking (1), flexible subassembly (3) are connected with the controller electricity.

2. A plastic bottle blow molding opening removal apparatus as in claim 1, wherein: the split die (1) comprises a left half die (6) and a right half die (7), the right half die (7) is inserted and arranged on the outer wall of the left half die (6) through four guide posts, slots (8) are formed in the outer walls of the left half die (6) and the right half die (7), and each cutter (4) is inserted and arranged between two adjacent slots (8).

3. A plastic bottle blow molding opening removal apparatus as in claim 2, wherein: the tops of the left half mould (6) and the right half mould (7) are provided with semi-conical water gaps (9).

4. A plastic bottle blow molding removal device as in claim 3 wherein: the inner walls of the left half mould (6) and the right half mould (7) are respectively provided with a half cavity (10) for molding a plastic bottle, one end of each half conical water gap (9) close to one half cavity (10) is respectively provided with a containing groove (11) for inserting a cutter (4), and each half conical water gap (9) is communicated with one half cavity (10).

5. A plastic bottle blow molding opening removal apparatus as in claim 4, wherein: the telescopic assembly (3) comprises a bidirectional electric push rod (12) and two pull plates (13), the bidirectional electric push rod (12) is fixedly arranged on the outer wall of the left half die (6), the two pull plates (13) are respectively fixedly arranged on two output ends of the bidirectional electric push rod (12), each pull plate (13) is fixedly connected with one end, far away from the accommodating groove (11), of one cutter (4), and the bidirectional electric push rod (12) is electrically connected with the controller.

6. A plastic bottle blow molding opening removal apparatus as in claim 5, wherein: each buffer assembly (5) comprises a guide rod (14), a buffer spring (15) and a limiting block (16), the limiting block (16) is fixedly arranged on the outer wall of the left half die (6), the guide rod (14) is fixedly arranged on the outer wall of the limiting block (16), the buffer spring (15) is sleeved on the outer wall of the guide rod (14), the guide rod (14) is spliced with the pulling plate (13), and the limiting block (16) and the pulling plate (13) are respectively abutted to the two ends of the buffer spring (15).