CN212446270U

CN212446270U - Sealing structure based on high-precision high-density polyethylene blow molding container

Info

Publication number: CN212446270U
Application number: CN202020892405.1U
Authority: CN
Inventors: 汤诚杰; 汤国灿; 蒋萌; 屠新勇
Original assignee: Hangzhou International Trade Packaging Products Co ltd
Current assignee: Hangzhou International Trade Packaging Products Co ltd
Priority date: 2020-05-25
Filing date: 2020-05-25
Publication date: 2021-02-02
Anticipated expiration: 2030-05-25

Abstract

The utility model discloses a seal structure based on high accuracy high density polyethylene blowing container, including the blowing workstation, the equal sliding connection in top of one side is relative with No. two moulds of a mould has a sealed rubber ring, the atmospheric pressure groove has all been seted up to one side that a mould is relative with No. two moulds, the equal sliding connection in below that the top of one side is relative with No. two moulds of a mould and be located a sealed rubber ring has No. two sealed rubber rings, the utility model relates to a blowing equipment technical field. This seal structure based on high accuracy high density polyethylene blow molding container through the setting of a sealed rubber ring and No. two sealed rubber rings for blow mold when using, can carry out double-deck sealedly between blow molding instrument and blow mold's the blow molding intracavity wall through a sealed rubber ring cooperation No. two sealed rubber rings, very big improvement the intercommunication leakproofness between blow molding instrument and blow mold's the blow molding intracavity wall.

Description

Sealing structure based on high-precision high-density polyethylene blow molding container

Technical Field

The utility model relates to a blowing equipment technical field specifically is a seal structure based on high accuracy high density polyethylene blowing container.

Background

Blow molding, also known as blow molding, is a rapidly developing plastic processing method. The blow molding process began during world war ii for the production of low density polyethylene vials. With the advent of high density polyethylene and the development of blow molding machines, blow molding technology has been widely used. The volume of the hollow container can reach thousands of liters, and computer control is adopted in some production. 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 the parison making method, and newly developed are multilayer blow molding and stretch blow molding.

When using, because the blowing instrument carries the blowing spare and need closely laminate with blow molding intracavity wall to guarantee the leakproofness of blowing mould's inside, carry the blowing spare through the blowing instrument and get into the blowing intracavity and blow molding, but during the blowing, there is not enough problem of leakproofness in the blowing instrument and the blow molding intracavity wall of blowing mould, this blow molding gas leakage that leads to the blowing spare easily, the incomplete finished product causes the obstacle to the work of blowing mould.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a seal structure based on high accuracy high density polyethylene blowing container has solved current blow mould's blowing intracavity wall and the problem that the blowing instrument has the not enough problem of leakproofness.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a sealing structure based on a high-precision high-density polyethylene blow molding container comprises a blow molding workbench, wherein fixed plates are fixedly connected to two sides of the top of the blow molding workbench, hydraulic cylinders are fixedly connected to one opposite sides of the two fixed plates, guide rods are fixedly connected between the two fixed plates and above and below the hydraulic cylinders, a first mold is slidably connected to the left side of the top of the blow molding workbench, a second mold is slidably connected to the right side of the top of the blow molding workbench, blow molding cavities are formed in one opposite sides of the first mold and the second mold, movable positioning grooves are formed in the front side and the back side of the right side of the first mold, a bottom sealing block is fixedly connected to the bottom of the right side of the first mold, a bottom sealing ring is fixedly connected to the bottom of the bottom sealing block, and a first sealing rubber ring is slidably connected to the top of one opposite side of the first mold and the second mold, the utility model discloses a sealing rubber ring, including a first mould, a second mould, a piston.

Preferably, the output ends of the two hydraulic cylinders are fixedly connected with hydraulic rods, and the right end of the hydraulic rod on the left side is fixedly connected with the left side of the first die.

Preferably, the left end of the hydraulic rod on the right side is fixedly connected with the right side of the second mold, and the left side of the bottom sealing ring is fixedly connected with the right side of the first mold.

Preferably, the inner surface of the guide groove is in sliding connection with the outer surface of the guide rod, and the outer surface of the movable positioning rod is matched with the inner surface of the movable positioning groove.

Preferably, the inner surface of the bottom seal groove is matched with the outer surface of the bottom seal block, and the air pressure groove is communicated with the blow molding cavity.

Preferably, the outer surface of the first piston is in sliding connection with the inner surface of the pneumatic groove, and the outer surface of the second piston is in sliding connection with the inner surface of the pneumatic groove.

Advantageous effects

The utility model provides a seal structure based on high accuracy high density polyethylene blow molding container. Compared with the prior art, the method has the following beneficial effects:

(1) the sealing structure based on the high-precision high-density polyethylene blow molding container is characterized in that a first sealing rubber ring is connected to the top of one side, opposite to a second mold, of a first mold in a sliding manner, an air pressure groove is formed in one side, opposite to the second mold, of the first mold, a second sealing rubber ring is connected to the top of one side, opposite to the second mold, of the first mold and the second mold in a sliding manner and located below the first sealing rubber ring, and the first sealing rubber ring and the second sealing rubber ring are arranged, so that when the blow molding mold is used, double-layer sealing can be performed between the blow molding tool and the inner wall of a blow molding cavity of the blow molding mold through the matching of the first sealing rubber ring and the second sealing rubber ring, the communication sealing performance between the blow molding tool and the inner wall of the blow molding cavity of the blow molding mold is greatly improved, the problem that the sealing performance between the blow molding tool and the inner wall of the blow molding, the product is incomplete and causes an obstacle to the work of the blow mold.

(2) This seal structure based on high accuracy high density polyethylene blow molding container, through bottom fixedly connected with bottom seal block on a mould right side, the bottom fixedly connected with bottom sealing washer of bottom seal block, bottom seal groove has been seted up to the left bottom of No. two moulds, setting through the bottom sealing washer, make blow molding mould when using, can increase the leakproofness between bottom seal block and the bottom seal groove through the bottom sealing washer, the leakproofness of blow molding mould during operation bottom has been guaranteed, the blow molding mould during operation bottom leakproofness has been avoided not enough, lead to the problem that the blow molding yield is low.

Drawings

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

FIG. 2 is a right side view of the first mold structure of the present invention;

FIG. 3 is a left side view of the second mold structure of the present invention;

FIG. 4 is a main sectional view of the partial structure of the first mold of the present invention;

fig. 5 is a perspective view of the explosion structure of the present invention.

In the figure 1, a blow moulding station; 2. a fixing plate; 3. a hydraulic cylinder; 4. a hydraulic lever; 5. a guide bar; 6. a first mold; 7. a second mold; 8. a blow molding chamber; 9. a movable positioning groove; 10. sealing the bottom; 11. a bottom seal ring; 12. a first sealing rubber ring; 13. a guide groove; 14. a movable positioning rod; 15. sealing the groove at the bottom; 16. an air pressure tank; 17. a second sealing rubber ring; 18. a piston I; 19. and a piston II.

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. 1-5, the present invention provides a technical solution: a sealing structure based on a high-precision high-density polyethylene blow molding container comprises a blow molding workbench 1, wherein the blow molding workbench 1 provides bottom support for a first mold 6 and a second mold 7, two sides of the top of the blow molding workbench 1 are fixedly connected with fixed plates 2, the fixed plates 2 provide work support for hydraulic cylinders 3, one sides of the two fixed plates 2 opposite to each other are fixedly connected with hydraulic cylinders 3, the hydraulic cylinders 3 are electrically connected with an external power supply, the hydraulic cylinders 3 are controlled by an external PLC (programmable logic controller) programming program, guide rods 5 are fixedly connected between the two fixed plates 2 and above and below the hydraulic cylinders 3, the left side of the top of the blow molding workbench 1 is slidably connected with a first mold 6, the right side of the top of the blow molding workbench 1 is slidably connected with a second mold 7, one side of the first mold 6 opposite to the second mold 7 is provided with a blow molding cavity 8, and the front and the back of the right side of the first, the bottom of the right side of the first mold 6 is fixedly connected with a bottom sealing block 10, the bottom of the bottom sealing block 10 is fixedly connected with a bottom sealing ring 11, the bottom sealing ring 11 improves the sealing performance of the bottom sealing block 10 and a bottom sealing groove 15, the top of the side of the first mold 6 opposite to the second mold 7 is respectively and slidably connected with a first sealing rubber ring 12, one side of the first mold 6 opposite to the second mold 7 is respectively and penetratingly provided with a guide groove 13, the front side and the back side of the left side of the second mold 7 are respectively and fixedly connected with a movable positioning rod 14, the bottom of the left side of the second mold 7 is provided with a bottom sealing groove 15, one side of the first mold 6 opposite to the second mold 7 is respectively and slidably provided with a pneumatic groove 16, the top of one side of the first mold 6 opposite to the second mold 7 and below the first sealing rubber ring 12 are respectively and slidably connected with a second sealing rubber ring 17, one side of the two first sealing rubber rings 12, two equal fixedly connected with pistons 19 in one side that No. two sealed rubber ring 17 kept away from each other, the equal fixedly connected with hydraulic stem 4 of output of two pneumatic cylinders 3, the right-hand member that is located left side hydraulic stem 4 and the left side fixed connection of a mould 6, the left end that is located right side hydraulic stem 4 and the right side fixed connection of No. two moulds 7, the left side of bottom sealing washer 11 and the right side fixed connection of a mould 6, the internal surface of guide way 13 and the surface sliding connection of guide way 5, the surface of activity locating lever 14 and the internal surface looks adaptation of activity constant head tank 9, the internal surface of bottom sealing washer 15 and the surface looks adaptation of bottom sealing block 10, communicate between pneumatic groove 16 and the blowing chamber 8, the surface of a piston 18 and the internal surface sliding connection of pneumatic groove 16, the surface of No. two pistons 19 and the internal surface sliding connection of pneumatic groove 16.

And those not described in detail in this specification are well within the skill of those in the art.

When the device works, firstly, a user starts the hydraulic cylinder 3 through the control panel, the hydraulic cylinder 3 is started to drive the hydraulic rod 4 to extend and displace, the hydraulic rod 4 positioned on the left side pushes the first mold 6 to displace towards the right side, the hydraulic rod 4 positioned on the left side pushes the second mold 7 to displace towards the left side, the guide rod 5 is matched with the guide groove 13 to movably limit the first mold 6 and the second mold 7, the blow molding tool carries a blow molding part to move between the first mold 6 and the second mold 7, the hydraulic rods 4 on two sides push the first mold 6 and the second mold 7 to displace towards the opposite side again, the blow molding tool is clamped through the top of the blow molding cavity 8, the first sealing rubber ring 12 is extruded under force and drives the first piston 18 to move towards the side surface, the first piston 18 moves and extrudes the air pressure groove 16, the second piston 19 is pushed by the pressure of the air pressure groove 16 to drive the second sealing rubber ring 17 to move towards one side of the blow molding tool, a sealed rubber ring 12 and No. two sealed rubber ring 17 atress seal the blowing instrument, bottom seal 10 carries out the joint with bottom seal groove 15, movable positioning rod 14 moves and gets into movable positioning groove 9 in the left side and carries out movable positioning to a mould 6 and No. two moulds 7, the blowing instrument carries the blowing piece and carries out the blowing in blowing chamber 8, the blowing is accomplished the back, pneumatic cylinder 3 starts and drives hydraulic stem 4 and carry out the shrink displacement, it promotes a mould 6 and shifts to the left side to be located left hydraulic stem 4, it shifts to the right side to be located left hydraulic stem 4 and promote No. two moulds 7, the user of service can obtain the blowing mould.

It is noted that, herein, relational terms such as first and second, and the like may be 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. The utility model provides a seal structure based on high accuracy high density polyethylene blow molding container, includes blow molding table (1), the equal fixedly connected with fixed plate (2) in both sides at blow molding table (1) top, its characterized in that: the opposite sides of the two fixing plates (2) are fixedly connected with a hydraulic cylinder (3), guide rods (5) are fixedly connected between the two fixing plates (2) and positioned above and below the hydraulic cylinder (3), the left side of the top of the blow molding workbench (1) is slidably connected with a first mold (6), the right side of the top of the blow molding workbench (1) is slidably connected with a second mold (7), one side of the first mold (6) opposite to the second mold (7) is provided with a blow molding cavity (8), the front and the back of the right side of the first mold (6) are provided with movable positioning grooves (9), the bottom of the right side of the first mold (6) is fixedly connected with a bottom sealing block (10), the bottom of the bottom sealing block (10) is fixedly connected with a bottom sealing ring (11), and the top of one side of the first mold (6) opposite to the second mold (7) is slidably connected with a first sealing rubber ring (12), the utility model discloses a No. one mould (6) and No. two equal run through in one side that mould (7) is relative and has seted up guide way (13), No. two equal fixedly connected with activity locating lever (14) in the front of mould (7) left and the back, bottom groove (15) have been seted up to the left bottom of mould (7), atmospheric pressure groove (16) have all been seted up to one side that mould (6) and No. two mould (7) are relative, the equal sliding connection in below that the top of one side that mould (6) and No. two mould (7) are relative just is located one number of sealed rubber ring (12) has No. two sealed rubber ring (17), two the equal fixedly connected with piston (18) in one side that one number of sealed rubber ring (12) kept away from each other, two equal fixedly connected with piston (19) in one side that No. two sealed rubber ring (17) kept away from each other.

2. The sealing structure of the high-precision high-density polyethylene blow-molded container according to claim 1, wherein: the output ends of the two hydraulic cylinders (3) are fixedly connected with hydraulic rods (4) and located on the left side, and the right end of each hydraulic rod (4) is fixedly connected with the left side of the first die (6).

3. The sealing structure of the high-precision high-density polyethylene blow-molded container according to claim 2, wherein: the left end of the hydraulic rod (4) is fixedly connected with the right side of the second mold (7), and the left side of the bottom sealing ring (11) is fixedly connected with the right side of the first mold (6).

4. The sealing structure of the high-precision high-density polyethylene blow-molded container according to claim 1, wherein: the inner surface of the guide groove (13) is in sliding connection with the outer surface of the guide rod (5), and the outer surface of the movable positioning rod (14) is matched with the inner surface of the movable positioning groove (9).

5. The sealing structure of the high-precision high-density polyethylene blow-molded container according to claim 1, wherein: the inner surface of the bottom sealing groove (15) is matched with the outer surface of the bottom sealing block (10), and the air pressure groove (16) is communicated with the blowing cavity (8).

6. The sealing structure of the high-precision high-density polyethylene blow-molded container according to claim 1, wherein: the outer surface of the first piston (18) is connected with the inner surface of the air pressure groove (16) in a sliding mode, and the outer surface of the second piston (19) is connected with the inner surface of the air pressure groove (16) in a sliding mode.