CN213055917U

CN213055917U - Extrusion head of film blowing machine for producing POF heat shrinkable film

Info

Publication number: CN213055917U
Application number: CN202021517764.5U
Authority: CN
Inventors: 谷思顺
Original assignee: Weishan Shunxin Plastic Packaging Material Co ltd
Current assignee: Shandong Xinshun Packaging Technology Co.,Ltd.
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2021-04-27
Anticipated expiration: 2030-07-28

Abstract

The utility model belongs to the technical field of extrusion machine heads, in particular to an extrusion machine head of a film blowing machine for producing POF thermal contraction films, which comprises a machine head body, wherein a pressurizer is fixedly connected to the left end of the machine head body, a filter plate is arranged on the right side of the left end of the pressurizer, the upper end and the lower end of the filter plate are respectively and fixedly connected to the upper surface and the lower surface in the machine head body, the upper surface and the lower surface of a flow passage are respectively and fixedly connected with a thermal-conducting heat-insulating layer, the side surface of the thermal-conducting heat-insulating layer, which is far away from the flow passage, is fixedly connected with an electromagnetic heater in the machine head body, the middle part of the right end surface of the machine head body is fixedly connected with a nozzle, the flow passage and the nozzle are integrally communicated, keeping the fluidity of the plastic particles in the extruder head in a molten state and preventing the blockage of the outlet of the extruder head.

Description

Extrusion head of film blowing machine for producing POF heat shrinkable film

Technical Field

The utility model relates to an extrude aircraft nose technical field, especially relate to an extrusion aircraft nose of inflation film manufacturing machine for production of POF thermal contraction membrane.

Background

POF is a heat shrinkable film, is mainly used for packaging products with regular and irregular shapes, is a replacement product of the traditional PVC heat shrinkable film due to the characteristics of no toxicity, environmental protection, high transparency, high shrinkage, good heat sealing performance, high glossiness, high toughness, tear resistance, uniform heat shrinkage, suitability for full-automatic high-speed packaging and the like, and is widely applied to products such as automobile products, plastic products, stationery, books, electronics, circuit boards, MP3, VCD, artware, photo frames and other wood products, toys, insecticides, daily necessities, food, cosmetics, canned beverages, dairy products, medicines, cassette tapes, video tapes and the like.

The flowability of plastic particles in a molten state is often weakened at an extruder head of the film blowing machine, so that the extruder head is blocked, the extruder head cannot smoothly extrude the plastic particles in the molten state, and flocculent or strip-shaped impurities are mixed in the plastic particles in the molten state, and granular impurities with larger diameters are also mixed in the plastic particles to block the extruder head of the film blowing machine.

In order to solve the problems, the application provides an extruder head of a film blowing machine for producing a POF heat shrinkable film.

SUMMERY OF THE UTILITY MODEL

Objects of the invention

For solving the technical problem that exists among the background art, the utility model provides a POF thermal contraction membrane production is with inflation film manufacturing machine's extrusion aircraft nose has and filters the plastic pellet under the molten condition, keeps the mobility of plastic pellet under the molten condition at the extrusion aircraft nose, prevents the characteristics of extrusion aircraft nose exit jam.

(II) technical scheme

In order to solve the problems, the utility model provides an extrusion head of a film blowing machine for producing POF thermal contraction films, which comprises a head body, wherein the left end of the head body is fixedly connected with a pressurizer, one side of the pressurizer is provided with a filter plate, the upper end and the lower end of the filter plate are respectively and fixedly connected with the upper surface and the lower surface inside the head body, the inside of the filter plate is uniformly and fixedly connected with a cross beam rod from top to bottom at intervals, the upper surface and the lower surface of the cross beam rod are uniformly and fixedly connected with hooks at intervals, the right side of the filter plate is provided with a filter screen, the upper end and the lower end of the filter screen are respectively and fixedly connected with the upper surface and the lower surface inside the head body, the right side of the filter screen is provided with a flow passage, the upper surface and the, the middle part of the right end face of the machine head body is fixedly connected with a nozzle, the flow channel and the nozzle are integrally communicated, and two extrusion type rolling rollers are arranged on the right side of the nozzle.

Preferably, the diameter of the mesh of the filter screen is set to be one millimeter to two millimeters.

Preferably, the joint of the two extrusion type rollers is at the same height with the horizontal center line of the nozzle.

Preferably, the middle part of the extrusion type roller is fixedly connected with a rotating output shaft, and the outer surface of the rotating output shaft is fixedly connected with a cooling water inlet pipe.

Preferably, the inside of the extrusion type rolling roller is provided with a cavity, the inner side surface of the cavity is uniformly and fixedly connected with connecting pipes at intervals, and the cavity inside the extrusion type rolling roller is communicated with a cooling water inlet pipe through the connecting pipes.

Preferably, the flow passage inner surface and the nozzle inner surface are smooth.

Preferably, burrs are fixedly connected to the outer surface of the hook.

The above technical scheme of the utility model has following profitable technological effect:

according to the extruder head of the film blowing machine for producing the POF heat shrinkable film, due to the arrangement of the filter plate, the filter screen, the pressurizer and the electromagnetic heater, flocculent impurities and strip-shaped impurities in plastic particles in a molten state can be removed by the filter plate, granular impurities with larger diameters in the plastic particles in the molten state can be filtered by the filter screen, the plastic particles in the molten state obtain a certain speed at the pressurizer, and the electromagnetic heater heats the flow channel so that the flowability of the plastic particles in the molten state cannot be reduced, so that the plastic particles in the molten state are filtered, the flowability of the plastic particles in the extruder head in the molten state is maintained, and the blockage of an outlet of the extruder head is prevented.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the filter plate structure of the present invention;

FIG. 3 is a schematic cross-sectional view of the extrusion roller of the present invention;

fig. 4 is the utility model discloses a heat conduction heat preservation and runner structural schematic.

In the figure: 1. a handpiece body; 2. a pressurizer; 3. a filter plate; 4. a filter screen; 5. an electromagnetic heater; 6. A flow channel; 7. a nozzle; 8. an extrusion-type roll; 9. hooking; 10. a beam rod; 11. a cavity; 12. a connecting pipe; 13. rotating the output shaft; 14. cooling the water inlet pipe; 15. a heat conducting and insulating layer.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in figures 1-4, the extrusion head of the film blowing machine for producing the POF thermal shrinkage film provided by the utility model comprises a head body 1, a pressurizer 2 is fixedly connected to the left end of the head body 1, a filter plate 3 is arranged on one side of the pressurizer 2, the upper end and the lower end of the filter plate 3 are respectively fixedly connected to the upper surface and the lower surface inside the head body 1, cross beam rods 10 are uniformly and fixedly connected to the inside of the filter plate 3 from top to bottom at intervals, hooks 9 are uniformly and fixedly connected to the upper surface and the lower surface of the cross beam rods 10 at intervals, a filter screen 4 is arranged on the right side of the filter plate 3, the upper end and the lower end of the filter screen 4 are respectively fixedly connected to the upper surface and the lower surface inside the head body 1, a flow channel 6 is arranged on the right side of the filter screen 4, a heat-conducting heat-insulating layer 15 is fixedly connected to, the improved extrusion die is characterized in that an electromagnetic heater 5 is fixedly connected inside the machine head body 1, a nozzle 7 is fixedly connected to the middle of the right end face of the machine head body 1, the flow channel 6 and the nozzle 7 are integrally communicated, and two extrusion type rolling rollers 8 are arranged on the right side of the nozzle 7.

In this embodiment, it should be noted that the diameter of the mesh of the filter screen 4 is set to be one millimeter to two millimeters, and by adopting such a setting mode, the filter screen 4 can filter out large-diameter granular impurities in plastic particles in a molten state.

In this embodiment, the connection point of the two extrusion rollers 8 and the horizontal center line of the nozzle 7 are at the same height, and the extrusion rollers 8 are arranged in such a manner that the plastic particles in a molten state coming out from the nozzle 7 can be pressed into a film.

In this embodiment, it should be noted that, a rotating output shaft 13 is fixedly connected to the middle of the extrusion-type rolling roller 8, and a cooling water inlet pipe 14 is fixedly connected to the outer surface of the rotating output shaft 13, so that the rotating output shaft 13 can rotate the extrusion-type rolling roller 8.

In this embodiment, it should be noted that the inside of the extrusion rolling roller 8 is provided with a cavity 11, the inner side surface of the cavity 11 is uniformly and fixedly connected with a connecting pipe 12 at intervals, and the cavity 11 inside the extrusion rolling roller 8 is communicated with a cooling water inlet pipe 14 through the connecting pipe 12.

In this embodiment, it should be noted that, the inner surface of the flow channel 6 and the inner surface of the nozzle 7 are both smooth surfaces, and by adopting such an arrangement, the friction force between the plastic particles in the molten state and the inner surfaces of the flow channel 6 and the nozzle 7 is reduced, and the flowability of the plastic particles in the molten state is not reduced.

In this embodiment, it should be noted that the outer surface of the hook 9 is fixedly connected with a burr, and the plastic particles in the molten state are further cleaned from flocculent impurities and strip-shaped impurities by adopting such an arrangement manner.

The working principle is as follows: plastic particles in a molten state enter the machine head body 1 at a certain speed under the action of the pressurizer 2, when the plastic particles pass through the filter plate 3, flocculent impurities and strip-shaped impurities in the plastic particles in the molten state can be removed by the aid of the beam rod 10 and the hook 9 which are fixed inside the filter plate 3, granular impurities with large diameters in the plastic particles in the molten state can be filtered by the filter screen 4, the electromagnetic heater 5 heats the flow channel 6 when the plastic particles pass through the flow channel 6 and the nozzle 7, the temperature of the flow channel 6 is kept, flowability of the plastic particles is further kept, discharging is carried out at the nozzle 7, and the plastic particles in the molten state coming out of the nozzle 7 can be pressed into a film by the extrusion type rolling roller 8.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An extrusion machine head of a film blowing machine for producing a POF thermal shrinkage film comprises a machine head body (1) and is characterized in that a pressurizer (2) is fixedly connected to the left end of the machine head body (1), a filter plate (3) is arranged on one side of the pressurizer (2), the upper end and the lower end of the filter plate (3) are fixedly connected to the upper surface and the lower surface of the interior of the machine head body (1) respectively, cross beam rods (10) are uniformly and fixedly connected to the interior of the filter plate (3) from top to bottom at intervals, hooks (9) are uniformly and fixedly connected to the upper surface and the lower surface of each cross beam rod (10) at intervals, a filter screen (4) is arranged on the right side of the filter plate (3), the upper end and the lower end of each filter screen (4) are fixedly connected to the upper surface and the lower surface of the interior of the machine head body (1) respectively, a flow channel, the side fixedly connected with aircraft nose body (1) of runner (6) is kept away from in heat conduction heat preservation (15), the inside fixedly connected with electromagnetic heater (5) of aircraft nose body (1), aircraft nose body (1) right-hand member face middle part fixedly connected with nozzle (7), runner (6) and nozzle (7) are the integration and link up, nozzle (7) right side is provided with two extrusion type and rolls roller (8).

2. The extrusion head of a film blowing machine for producing POF heat shrinkable films as claimed in claim 1, wherein the mesh diameter of the filter screen (4) is set to one mm to two mm.

3. The extrusion head of a film blowing machine for producing POF heat shrinkable films as claimed in claim 1, wherein the joint of the two extrusion type rollers (8) and the horizontal center line of the nozzle (7) are at the same height.

4. The extrusion head of the film blowing machine for producing the POF heat shrinkable film as claimed in claim 1, wherein a rotary output shaft (13) is fixedly connected to the middle part of the extrusion type roller (8), and a cooling water inlet pipe (14) is fixedly connected to the outer surface of the rotary output shaft (13).

5. The extrusion head of the film blowing machine for producing the POF heat shrinkable film as claimed in claim 1, wherein the extrusion type roller (8) is internally provided with cavities (11), the inner side surfaces of the cavities (11) are fixedly connected with connecting pipes (12) at intervals, and the cavities (11) in the extrusion type roller (8) are communicated with a cooling water inlet pipe (14) through the connecting pipes (12).

6. The extrusion head of a film blowing machine for producing POF heat shrinkable films as claimed in claim 1, wherein the inner surface of the runner (6) and the inner surface of the nozzle (7) are smooth.

7. The extrusion head of the film blowing machine for producing the POF heat shrinkable film as claimed in claim 1, wherein burrs are fixedly connected to the outer surface of the hook (9).