CN218462943U

CN218462943U - Die head of film blowing machine

Info

Publication number: CN218462943U
Application number: CN202222488274.2U
Authority: CN
Inventors: 金治平
Original assignee: Zhejiang Jiuteng Packaging Co ltd
Current assignee: Zhejiang Jiuteng Packaging Co ltd
Priority date: 2022-09-20
Filing date: 2022-09-20
Publication date: 2023-02-10
Anticipated expiration: 2032-09-20

Abstract

The utility model discloses a inflation film manufacturing machine die head, including the die body, the bottom inner chamber of die body is provided with the barrel, the bottom opening part of barrel is provided with and is used for the filter with material cross mixing, the top inner chamber of barrel is provided with the spreader cone, the bush is installed through solid fixed ring in the top of die body, the bush inner chamber is provided with the mold core, be provided with between bush and the mold core and be used for carrying out the regulation structure of adjusting to film thickness, the utility model discloses a under the effect of the second through-hole of slope on the filter, can make the material of extruding be cross mixing, improved the degree of mixing of fuse-element, and the barrel is inside to cooperate with the spreader cone to have radial aperture on the one hand at the tube structure, can improve the mixed degree of fuse-element reposition of redundant personnel, on the other hand has replaced the spreader cone support similar to the structure of sieve aperture circle, can avoid the fuse-element to flow through produced by the spreader cone support, has improved the homogeneity of film texture and the intensity of film.

Description

Die head of film blowing machine

Technical Field

The utility model relates to a inflation film manufacturing machine technical field specifically is a inflation film manufacturing machine die head.

Background

The film blowing machine is characterized in that dry polyethylene particles are added into a lower hopper, the polyethylene particles enter a screw rod from the hopper by the weight of the particles, after granules are contacted with a thread bevel edge, the rotating bevel edge generates a thrust force which is vertical to the bevel edge surface to the plastic, and the plastic particles are pushed forwards, and in the pushing process, the polyethylene particles are gradually melted due to the friction between the plastic and the screw rod and between the plastic and a machine barrel and the collision and friction between the plastic and the particles and the heating outside the material barrel. The molten plastic is filtered by the machine head to remove impurities, discharged from the die head die orifice, cooled by an air ring, blown up by a herringbone plate and a traction roller, and coiled to roll the finished film into a cylinder.

The die head of inflation film manufacturing machine is used for when extruding the material, guarantees having the orderly derivation of strip of material, nevertheless how guarantee film thickness degree of consistency in process of production, is one of the most difficult problem of solving in the process of production, in addition, current die head can not improve the misce bene degree of material to influence the homogeneity and the intensity of film.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a inflation film manufacturing machine die head to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a inflation film manufacturing machine die head, includes the die body, the bottom inner chamber of die body is provided with the barrel, the bottom opening part of barrel is provided with and is used for the filter with material cross mixing, the top inner chamber of barrel is provided with the reposition of redundant personnel awl, the bush is installed through solid fixed ring in the top of die body, the bush inner chamber is provided with the mold core, be provided with between bush and the mold core and be used for carrying out the regulation structure adjusted to film thickness, the lateral wall of die body is provided with the trachea.

As a further aspect of the present invention: the big bottom in top of reposition of redundant personnel awl is little, just the bottom of reposition of redundant personnel awl contacts with the upper surface middle part of filter, be formed with the runner chamber between the lateral wall of reposition of redundant personnel awl and the barrel inner wall, through the setting of reposition of redundant personnel awl, under the effect on its inclined plane for the material of extruding through the filter plate is by even delivering to the runner intracavity.

As a further aspect of the present invention: the surface of filter is provided with a plurality of second through-holes that evenly distribute in order, the slope of second through-hole sets up, and every line the second through-hole is opposite with the second through-hole slope direction of adjacent line, can make the material of extruding be cross mixing, has improved the mixed degree of fuse-element.

As the utility model discloses further scheme again: the top lateral wall of barrel is provided with a plurality of first through-holes of even orderly distribution, first through-hole horizontal distribution.

As a further aspect of the present invention: and a flow passage communicated with the outer wall of the mold core and the inner wall of the die is arranged between the mold body and the die, and the bottom of the flow passage is communicated with the first through hole.

As a further aspect of the present invention: the adjusting structure comprises thirty-six adjusting screws, thirty-six threaded holes distributed in a circumferential array are formed in the side wall of the neck ring mold, and the adjusting screws are in threaded connection with the threaded holes.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses an under the effect of the second through-hole of slope on the filter, the material that can make to extrude is cross mixing, the mixed degree of fuse-element has been improved, and the barrel is inside to cooperate with the reposition of redundant personnel awl, many radial second through-holes have been set up on the barrel, play the effect that the reposition of redundant personnel was mixed, the fuse-element is extruded through the filter plate and is got into in the barrel, under the reposition of redundant personnel of reposition of redundant personnel awl, become annular axial material stream, then flow through the radial aperture on the barrel, become radial material stream, the passageway is flowed through again, become annular axial material stream, this kind of tube structure has radial aperture on the one hand, can improve the mixed degree of fuse-element reposition of redundant personnel, on the other hand is similar to the structure of sieve aperture circle and has replaced the reposition of redundant personnel awl support, can avoid the fuse-element to flow through reposition of redundant personnel awl support produced weld mark, the homogeneity of film texture and the intensity of film have been improved.

2. Through the improvement to the die head, regard as the fine setting with thirty six M14 screws below the die orifice, can carry out reasonable regulation to the unevenness that shrink film produced after the secondary inflation, can be according to the data that infrared ray thickness measuring device detected out the film, utilize interior hexagonal plate hand to carry out fine setting control to the inhomogeneous position of pipe thickness, guarantee the even of film bubble thickness when the secondary inflation, make producers can conveniently adjust the die head under the condition that need not harm the film product, make the product have higher thickness degree of consistency, thereby better assurance product quality and integrality.

Drawings

Fig. 1 is a schematic structural diagram of a film blowing machine die head.

Fig. 2 is a side view of fig. 1.

FIG. 3 is a schematic structural diagram of a filter plate in a die head of a film blowing machine.

In the figure: 1. a mold body; 2. a fixing ring; 3. a neck ring mold; 4. a mold core; 5. an adjusting screw; 6. an air tube; 7. a cylinder body; 8. a filter plate; 9. a spreader cone; 10. a runner cavity; 11. a first through hole; 12. a flow channel; 13. a second via.

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 to 3, in the embodiment of the present invention, a film blowing machine die head comprises a die body 1, a barrel 7 is arranged in a bottom inner cavity of the die body 1, a filter plate 8 for cross-mixing materials is arranged at a bottom opening of the barrel 7, a spreader cone 9 is arranged in a top inner cavity of the barrel 7, the top of the spreader cone 9 is large, the bottom of the spreader cone 9 is small, the bottom of the spreader cone 9 contacts with the middle part of the upper surface of the filter plate 8, a flow channel cavity 10 is formed between the side wall of the spreader cone 9 and the inner wall of the barrel 7, by means of the arrangement of the spreader cone 9, the materials extruded through the filter plate 8 are uniformly delivered into the flow channel cavity 10 under the action of the inclined surface, a plurality of first through holes 11 uniformly and orderly distributed are arranged on the top side wall of the barrel 7, the first through holes 11 are horizontally distributed, a die 3 is mounted at the top end of the die body 1 through a fixing ring 2, a die core 4 is arranged in the inner cavity of the die 3, a flow channel 12 communicated with the outer wall of the mold core 4 and the inner wall of the mold die 3 is arranged between the mold body 1 and the mold die 3, the bottom of the flow channel 12 is communicated with a first through hole 11, a plurality of second through holes 13 which are uniformly and orderly distributed are arranged on the surface of the filter plate 8, the second through holes 13 are obliquely arranged, the oblique directions of the second through holes 13 in each row are opposite to the oblique directions of the second through holes 13 in adjacent rows, so that extruded materials can be in cross mixing, the mixing degree of melts is improved, the interior of the cylinder body 7 is matched with the shunting cone 9, a plurality of radial second through holes 13 are arranged on the cylinder body 7 to play a role in shunting and mixing, the melts are extruded into the cylinder body 7 through the filter plate 8, under the shunting of the shunting cone 9, annular axial material flow is formed, then flows through radial small holes on the cylinder body 7 to become radial material flow, and then flows through the flow channel 12 to become annular axial material flow, the structure of the cylinder body 7 is provided with radial small holes on one hand, which can improve the shunting and mixing degree of the melt, and on the other hand, the structure similar to a sieve pore ring replaces a shunting cone bracket, which can avoid the weld marks generated when the melt flows through the shunting cone bracket;

be provided with between bush 3 and the mold core 4 and be used for carrying out the regulation structure adjusted to film thickness, the lateral wall of die body 1 is provided with trachea 6, the regulation structure includes thirty six adjusting screw 5, the lateral wall of bush 3 is provided with thirty six screw holes that are the circumference array and distribute, adjusting screw 5 and screw hole threaded connection, adjusting screw 5 is M14 screw, through the improvement to the die head, use thirty six M14 screws below the die orifice as the fine setting, can rationally adjust the unevenness that shrink film produced after the secondary inflation, can be according to the data that infrared thickness measuring device detected out the film, utilize interior hexagonal plate hand to carry out fine setting control to the inhomogeneous position of pipe thickness, guarantee the even of film bubble thickness when the secondary inflation, make producers can conveniently adjust the die head under the condition that need not harm the film product, make the product have higher thickness degree of consistency, thereby better assurance product quality and integrality.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a inflation film manufacturing machine die head, includes die body (1), its characterized in that, the bottom inner chamber of die body (1) is provided with barrel (7), the bottom opening part of barrel (7) is provided with filter (8) that are used for alternately mixing the material, the top inner chamber of barrel (7) is provided with spreader cone (9), bush (3) are installed through solid fixed ring (2) in the top of die body (1), bush (3) inner chamber is provided with mold core (4), be provided with between bush (3) and mold core (4) and be used for carrying out the regulation structure adjusted to film thickness, the lateral wall of die body (1) is provided with trachea (6).

2. The die head of the film blowing machine according to the claim 1, characterized in that the top end of the diverging cone (9) is big and the bottom is small, the bottom of the diverging cone (9) contacts with the middle part of the upper surface of the filter plate (8), and a flow channel chamber (10) is formed between the side wall of the diverging cone (9) and the inner wall of the cylinder body (7).

3. A film blowing machine die head according to claim 1, characterized in that the surface of the filter plate (8) is provided with a plurality of second through holes (13) uniformly and orderly distributed, the second through holes (13) are obliquely arranged, and the second through holes (13) in each row are obliquely opposite to the second through holes (13) in the adjacent row.

4. The die head of the film blowing machine according to the claim 1, characterized in that the side wall of the top end of the cylinder (7) is provided with a plurality of first through holes (11) distributed evenly and orderly, and the first through holes (11) are distributed horizontally.

5. The die head of the film blowing machine according to the claim 4, characterized in that a flow channel (12) communicated with the outer wall of the die core (4) and the inner wall of the die (3) is arranged between the die body (1) and the die (3), and the bottom of the flow channel (12) is communicated with the first through hole (11).

6. The die head of the film blowing machine according to the claim 1, characterized in that the adjusting structure comprises thirty-six adjusting screws (5), the side wall of the die (3) is provided with thirty-six threaded holes distributed in a circumferential array, and the adjusting screws (5) are in threaded connection with the threaded holes.