CN218256711U

CN218256711U - Blow molding device for polyethylene plastic container

Info

Publication number: CN218256711U
Application number: CN202222305332.3U
Authority: CN
Inventors: 汤灿良; 汤建峰; 孔立飞
Original assignee: Hangzhou Yatai Packaging Container Co ltd
Current assignee: Hangzhou Yatai Packaging Container Co ltd
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2023-01-10
Anticipated expiration: 2032-08-31

Abstract

The utility model discloses a blowing device of polyethylene plastic container, including the carriage, carriage fixedly connected with air compressor machine, the air compressor machine fixedly connected with blast pipe of giving vent to anger, carriage top middle-end fixedly connected with three-way valve, the carriage upside is connected with first cylinder subassembly, first cylinder subassembly lower extreme is connected with the blowing shower nozzle, the carriage downside is equipped with automatically controlled slide rail, automatically controlled slide rail inner is connected with removes the frame, it is equipped with second cylinder subassembly to remove the frame upside, second cylinder subassembly all is connected with the blowing mould, the utility model relates to a plastic container blowing technical field. According to the blow molding device for the polyethylene plastic container, compressed air is injected into the top block through the guide pipe, the connecting seat and the telescopic rod by the three-way valve, the top block guides the air into the heat dissipation groove in the inner wall of the blow mold through the ventilation groove and finally discharges the air, and the heat absorption is performed on the blow mold and the expanded extrusion molding piece at the inner end of the blow mold in the flowing process of the compressed air.

Description

Blow molding device for polyethylene plastic container

Technical Field

The utility model relates to a plastic container blowing technical field specifically is a blow molding device of polyethylene plastic container.

Background

Polyethylene is one of five synthetic resins, and plastic containers, namely hollow blow-molded containers, are processed by a hollow molding method, and in the production process of the plastic containers, a corresponding blow-molding device is required to blow the plastic containers to promote the molding of the plastic containers.

When the existing blow molding device for the polyethylene plastic container is used, the service efficiency of an air compressor at the inner end of the device is low, the blow mold and the blow molded plastic container cannot be radiated during non-blow molding, waste is caused, and in addition, the device cannot be timely separated from the injection mold and the ejector block after the plastic container is molded, so that the follow-up manual taking-out operation is increased, and the production efficiency is further reduced.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a blowing device of polyethylene plastic container has solved the interior air compressor availability factor of device and has hanged down, can't promote the container that the blowing finishes and blow mould separation scheduling problem.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a blowing device of polyethylene plastic container, includes the carriage, carriage upside one end fixedly connected with air compressor machine, the air compressor machine end fixedly connected with blast pipe of giving vent to anger, carriage top middle-end fixedly connected with and blast pipe fixedly connected's three-way valve, the carriage upside is close to the three-way valve lower extreme and is connected with first cylinder subassembly, first cylinder subassembly lower extreme is connected with the blowing shower nozzle, three-way valve side fixedly connected with pipe, the carriage downside is equipped with automatically controlled slide rail, automatically controlled slide rail inner is connected with and removes the frame, it all is equipped with the second cylinder subassembly to remove frame upside both ends, two the second cylinder subassembly all is connected with the blowing mould, two blowing mould upper end all is equipped with the cutting part, remove the equal fixedly connected with connecting seat in frame both sides, two equal fixedly connected with spring in connecting seat inner, two the equal fixedly connected with of spring extension end respectively with blowing mould, connecting seat sliding connection's telescopic link, two the equal fixedly connected with of telescopic link and blowing mould sliding connection's kicking block.

Preferably, the three-way valve is an electromagnetic three-way valve, and the lower end of the three-way valve is fixedly connected with a corrugated pipe fixedly connected and communicated with the blow molding nozzle.

Preferably, the lower ends of the supporting frame and the moving frame are provided with discharge chutes, and the lower ends of the two blow molds are connected with the moving frame in a sliding manner through pulleys.

Preferably, the cutting-off member comprises an air cylinder, a storage shell and a blade, wherein the air cylinder and the storage shell are both fixedly connected with the upper end of the blow mold, and the blade is fixedly connected with the extending end of the air cylinder and is in sliding connection with the storage shell.

Preferably, the inner end of the connecting seat is provided with a limiting rod which is connected with the telescopic rod in a sliding mode, the end, close to the inner wall, of the blow mold is provided with a heat dissipation groove communicated with the outside, and the inner end of the ejector block is provided with a groove communicated with the heat dissipation groove.

Preferably, the middle end of the telescopic rod is fixedly connected with a stop block, the top block is made of stainless steel materials, and the top block is fixedly connected and communicated with the guide pipe.

Advantageous effects

The utility model provides a blow molding device of polyethylene plastic container. Compared with the prior art, the method has the following beneficial effects:

(1) This polyethylene plastic container's blowing device, through set up the radiating groove in the device, the back is accomplished in the blowing, make the blowing shower nozzle reset, then make the three-way valve switching-over, the three-way valve is through the pipe with compressed air, the connecting seat, in the telescopic link injection top piece, the radiating groove of top piece through the air channel with gaseous leading-in blow molding inner wall, and final discharge, compressed gas flows the in-process, carry out the heat absorption to blow molding and the inner expanded extrusion molding piece thereof, be the plastic container by the extrusion molding piece shaping of blowing with higher speed, but this setting make full use of air compressor machine, reduce extravagantly.

(2) This polyethylene plastic container's blowing device, through set up the kicking block in the device, after the blowing finishes, start the inner second cylinder of second cylinder subassembly and drive the blowing mould and keep away from plastic container, the kicking block is at the telescopic link, support and make and blow mould inner wall separation to plastic container under the effect of spring, treat that the blowing mould removes when the telescopic link middle-end, the dog that the blowing mould passes through the telescopic link middle-end promotes kicking block and plastic container separation, the container that loses the support is derived from the blown down tank that removes frame and carriage lower extreme, avoid the plastic container adhesion on blowing mould or kicking block.

Drawings

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

FIG. 2 is an enlarged cross-sectional view of the inner end cut-off of the present invention;

fig. 3 is a partially enlarged view of a portion a of fig. 1 according to the present invention.

In the figure: 1. a support frame; 2. an air compressor; 3. an exhaust pipe; 4. a three-way valve; 5. a first cylinder assembly; 6. blow molding nozzles; 7. a conduit; 8. an electrically controlled slide rail; 9. moving the frame; 10. a second cylinder assembly; 11. a blow mold; 12. cutting off the parts; 121. a cylinder; 122. a housing case; 123. a blade; 13. a connecting seat; 14. a spring; 15. a telescopic rod; 16. and (7) a top block.

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.

A first embodiment as shown in fig. 1-3: the utility model provides a blow molding device of polyethylene plastic container, including carriage 1, 1 upside one end fixedly connected with air compressor machine 2 of carriage, air compressor machine 2 gives vent to anger end fixedly connected with blast pipe 3, 1 top middle-end fixedly connected with of carriage and 3 fixedly connected's of blast pipe three-way valve 4, 1 upside of carriage is close to 4 lower extremes of three-way valve and is connected with first cylinder subassembly 5, 5 lower extremes of first cylinder subassembly are connected with blow molding shower nozzle 6, three-way valve 4 is electromagnetic three-way valve, the bellows of 4 lower extremes fixedly connected with of three-way valve and 6 fixed connection and intercommunication of blow molding shower nozzle, the bellows pipe elasticity, when blow molding shower nozzle 6 reciprocates, the bellows keeps the state of ventilating. 4 side fixedly connected with pipes 7 of three-way valve, 1 downside of carriage is equipped with automatically controlled slide rail 8, and automatically controlled slide rail 8 the inner is connected with removes frame 9, and carriage 1 all is equipped with the blown down tank with removing frame 9 lower extreme, and two 11 lower extremes of blowing mould pass through pulley and remove frame 9 sliding connection, and the pulley provides the support for removing frame 9, and the blown down tank is in the back that the blowing finished, and the plastics container of being convenient for falls.

Remove 9 upside both ends of frame and all be equipped with second cylinder assembly 10, two second cylinder assemblies 10 all are connected with

blow mould

11, 11 upper ends of two blow moulds all are equipped with cutting part 12, cutting part 12 is by cylinder 121, accomodate shell 122, blade 123 constitutes, cylinder 121, accomodate shell 122 all with 11 upper end fixed connection of blow mould, blade 123 and cylinder 121 extension end fixed connection and with accomodate shell 122 sliding connection, extrusion molding stretches into extrusion molding in the blow mould 11, then start cylinder 121, cylinder 121 drives blade 123 and cuts off extrusion molding upper end, be convenient for follow-up blowing operation. Remove the equal fixedly connected with connecting seat 13 in frame 9 both sides, two equal fixedly connected with springs 14 in connecting seat 13 the inner, two equal fixedly connected with in 14 extension ends of springs respectively with blowing mould 11, connecting seat 13 sliding connection's telescopic link 15, two equal fixedly connected with in 15 extension ends of telescopic link and 11 sliding connection's of blowing mould kicking block 16.

15 middle-end fixedly connected with dogs of telescopic link, kicking block 16 comprises stainless steel material, kicking block 16 and pipe 7 fixed connection and intercommunication, after the blowing finishes, start the inner second cylinder of second cylinder subassembly 10 and drive the blowing mould 11 and keep away from the plastic container, kicking block 16 is at telescopic link 15, support the plastic container and make and 11 inner wall separations of blowing mould under spring 14's the effect, treat that blowing mould 11 removes when the telescopic link 15 middle-end, blowing mould 11 promotes kicking block 16 and plastic container separation through the dog of telescopic link 15 middle-end, the container that loses the support is derived from the blown down tank that removes frame 9 and support frame 1 lower extreme, avoid the plastic container adhesion on blowing mould 11 or kicking block 16.

The second embodiment, as shown in fig. 1-3, differs from the first embodiment mainly in that:

connecting seat 13 the inner be equipped with the 15 sliding connection's of telescopic link gag lever post, blow mould 11 is close to the inner wall end and is equipped with the radiating groove with external intercommunication, 16 the inner fluting that is equipped with and communicates with the radiating groove of kicking block, the back is accomplished in the blowing, make the blowing shower nozzle 6 reset, then make the switching-over of three-way valve 4, three-way valve 4 is through pipe 7 with compressed air, connecting seat 13, telescopic link 15 pours into in the kicking block 16, kicking block 16 is through the radiating groove of the leading-in 11 inner walls of blow mould of air channel, and finally discharge, compressed gas flows the in-process, absorb the heat to the extrusion molding piece of blow mould 11 and its inner inflation, the extrusion molding piece shaping by the blowing is the plastic container with higher speed.

Meanwhile, the contents which are not described in detail in the specification belong to the prior art which is known by the person skilled in the art, and the model parameters of each electric appliance are not particularly limited, and conventional equipment can be used.

When the device is used, a user starts the electric control slide rail 8, the electric control slide rail 8 moves the movable frame 9 and the second air cylinder assembly 10 at the upper end thereof, the blow mold 11 and the cutting part 12 to the lower end of the extrusion molding part, the extrusion molding part extends into the blow mold 11 for extrusion molding, then the air cylinder 121 is started, the air cylinder 121 drives the blade 123 to cut off the upper end of the extrusion molding part, then the blade 123 is reset, the extrusion molding part, the movable frame 9 and the corresponding assembly at the upper end thereof are reset, after the blow mold 11 is positioned at the lower end of the blow molding nozzle 6, the first air cylinder assembly 5 is started, the first air cylinder in the first air cylinder assembly 5 drives the blow molding nozzle 6 to be inserted into the upper end of the extrusion molding part, the air compressor 2 is started to suck and compress outside air, then the compressed air is injected into the blow molding nozzle 6 through the exhaust pipe 3, the three-way valve 4 and the corrugated pipe, the compressed air is blown out by the blow molding nozzle 6 and is injected into the extrusion molding part, and the extrusion molding part expands under the action of the compressed air, finally, the plastic blow molding device is attached to the inner wall of the blow molding die 11, blow molding is achieved, after blow molding is finished, the blow molding spray head 6 is reset, then the three-way valve 4 is reversed, compressed air is injected into the top block 16 through the guide pipe 7, the connecting seat 13 and the telescopic rod 15 by the three-way valve 4, the top block 16 guides the air into the heat dissipation groove of the inner wall of the blow molding die 11 through the vent groove and finally discharges the air, the compressed air absorbs heat to the blow molding die 11 and the extruded piece expanded at the inner end of the blow molding die 11 in the flowing process, the plastic container is molded into a plastic container in an accelerated blowing mode, then the second air cylinder at the inner end of the second air cylinder assembly 10 is started to drive the blow molding die 11 to be far away from the plastic container, the top block 16 supports the plastic container under the action of the telescopic rod 15 and the spring 14 and enables the plastic container to be separated from the inner wall of the blow molding die 11, when the blow molding die 11 moves to the middle end of the telescopic rod 15, the top block 16 pushes the top block 16 to be separated from the plastic container, the container without support is led out from the discharge chute at the lower end of the moving frame 9 and the support frame 1.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A blow molding device for polyethylene plastic containers, which comprises a supporting frame (1), and is characterized in that: one end of the upper side of the supporting frame (1) is fixedly connected with an air compressor (2), an exhaust pipe (3) is fixedly connected with the air outlet end of the air compressor (2), the middle end of the top of the supporting frame (1) is fixedly connected with a three-way valve (4) fixedly connected with an exhaust pipe (3), the upper side of the supporting frame (1) is connected with a first cylinder component (5) close to the lower end of the three-way valve (4), the lower end of the first cylinder component (5) is connected with a blow molding nozzle (6), a conduit (7) is fixedly connected at the side end of the three-way valve (4), an electric control slide rail (8) is arranged at the lower side of the supporting frame (1), the inner end of the electric control slide rail (8) is connected with a movable frame (9), the two ends of the upper side of the movable frame (9) are respectively provided with a second air cylinder assembly (10), the two second air cylinder assemblies (10) are respectively connected with a blow mold (11), the upper ends of the two blow molds (11) are respectively provided with a cutting part (12), remove equal fixedly connected with connecting seat (13) in frame (9) both sides, two equal fixedly connected with spring (14) in connecting seat (13) inner, two equal fixedly connected with of spring (14) extension end respectively with blowing mould (11), connecting seat (13) sliding connection's telescopic link (15), two equal fixedly connected with of telescopic link (15) extension end and blowing mould (11) sliding connection's kicking block (16).

2. An apparatus for blow molding a polyethylene plastic container as claimed in claim 1, wherein: the three-way valve (4) is an electromagnetic three-way valve, and the lower end of the three-way valve (4) is fixedly connected with a corrugated pipe which is fixedly connected and communicated with the blow molding spray head (6).

3. An apparatus for blow molding a polyethylene plastic container as claimed in claim 1, wherein: the lower ends of the supporting frame (1) and the moving frame (9) are respectively provided with a discharge chute, and the lower ends of the blow molds (11) are connected with the moving frame (9) in a sliding mode through pulleys.

4. An apparatus for blow molding a polyethylene plastic container as claimed in claim 1, wherein: the cutting part (12) is composed of an air cylinder (121), a containing shell (122) and a blade (123), the air cylinder (121) and the containing shell (122) are both fixedly connected with the upper end of the blow mold (11), and the blade (123) is fixedly connected with the extending end of the air cylinder (121) and is in sliding connection with the containing shell (122).

5. An apparatus for blow molding a polyethylene plastic container as claimed in claim 1, wherein: the inner of the connecting seat (13) is provided with a limiting rod which is connected with the telescopic rod (15) in a sliding manner, the end, close to the inner wall, of the blow mold (11) is provided with a heat dissipation groove communicated with the outside, and the inner end of the ejector block (16) is provided with a groove communicated with the heat dissipation groove.

6. An apparatus for blow molding a polyethylene plastic container as claimed in claim 1, wherein: the middle end of the telescopic rod (15) is fixedly connected with a stop block, the ejector block (16) is made of stainless steel materials, and the ejector block (16) is fixedly connected and communicated with the guide pipe (7).