CN213137739U

CN213137739U - Nine-layer co-extrusion film blowing mold

Info

Publication number: CN213137739U
Application number: CN202022015633.3U
Authority: CN
Inventors: 卢惠珍
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-15
Filing date: 2020-09-15
Publication date: 2021-05-07
Anticipated expiration: 2030-09-15

Abstract

The utility model discloses a nine layers of blown film mould altogether, relate to blown film technical field, current blown film equipment generally all is three-layer coextrusion equipment, can't provide the multifunctionality of film, film thickness is uneven easily, can't satisfy the market demand, the utility model discloses a mould adopts nine independent extruders, nine independent extruders melt nine polyethylene particles respectively, current film function singleness has been solved, the too high problem of raw materials cost, this nine layers of blown film mould altogether includes nine extruders, nine extruders get into different polyethylene particles respectively to this film has the functional characteristics of nine layers of films. The frame protective cover of the nine-layer co-extrusion film blowing mold is connected with an adjusting screw, the thickness of a film can be adjusted through the adjusting screw, the problem of uneven thickness of the film is solved, and therefore the multifunctionality of the film and the uniformity of the thickness of the film are guaranteed.

Description

Nine-layer co-extrusion film blowing mold

Technical Field

The utility model relates to a blown film equipment technical field specifically is a blown film equipment that relates to a nine layers are crowded altogether.

Background

The film blowing is a plastic processing method, which means a plastic processing technology that plastic particles are heated and melted and then blown into a film, and generally, a polymer is extruded to form a tubular film blank, the tubular film is blown to a required thickness by high-pressure air in a better melt flowing state, and the tubular film is cooled and shaped into the film. The quality of the film material blown by the processing technology is related to the machine for blowing the film and plastic particles. The production equipment is simple, the investment is low, the product takes effect quickly, the mechanical property of the film is high, no rim charge is generated, the waste is low, the film product is cylindrical, the bag making process is simple, and the large-width film can be produced.

The film in the existing market has high demand on the multifunctionality and high demand on the uniformity of the thickness of the film, the existing film blowing equipment is provided with three extruders, the film is formed by integrating three layers of films, and the problems of the multifunctionality and the uniformity of the thickness of the film in the market cannot be solved.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model provides an aim at provides a blown film mould of nine layers altogether to solve the problem among the above-mentioned background art.

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

the utility model provides a blown film mould that nine layers are crowded altogether, includes extruder, organism, first runner, heating ring, screw, mold core and carry over pinch rolls, the extruder has nine, nine the extruder distributes side by side, is equipped with the appearance chamber that is used for the raw materials particle to melt in the extruder, nine the extruder bottom links to each other with first runner respectively, and the bottom of first runner is provided with the second runner, and the below of organism is provided with the screw, the screw contacts with the mold core.

As a further proposal of the utility model, the second flow channel is positioned at the middle position of the mold core and the middle bowl-shaped mold, and the heating ring is distributed at the outer side of the machine body.

As a further scheme of the utility model, the air-supply line is connected through the tuber pipe to middle bowl form mould inboard, and the inboard of middle bowl form mould is provided with inside play tuber pipe, inside play tuber pipe is connected with outside play tuber pipe through the tuber pipe.

As a further scheme of the utility model, the below of mold core has set gradually first deflector roll, carry over pinch rolls and second deflector roll, and the right side of second deflector roll is provided with the third deflector roll, and the right side of third deflector roll is provided with the wind-up roll, wind-up roll internal connection has first motor.

As a further scheme of the utility model, the left side of carry over pinch rolls is provided with the driven voller, the bottom of carry over pinch rolls is provided with the bearing, the bearing passes through the belt and links to each other with the second motor.

To sum up, compared with the prior art, the embodiment of the utility model has the following beneficial effects:

the embodiment of the utility model provides a mould adopts nine independent extruders, and nine independent extruders melt nine kinds of polyethylene particles respectively, have solved current film function singleness, the too high problem of raw materials cost to realize that the film has the functional characteristics of nine layers of films. The screw is arranged below the machine body of the nine-layer co-extrusion film blowing mold, and the gap of the second flow channel is adjusted by changing the relative position of the mold core and the middle bowl-shaped mold through adjusting the screw, so that the uniformity of the thickness of the film is adjusted.

To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Drawings

Fig. 1 is an overall front view of an embodiment of the present invention.

Fig. 2 is a top view of the mold core in the embodiment of the present invention.

Fig. 3 is a schematic structural view of a pulling roll in an embodiment of the present invention.

Reference numerals: 1-extruder, 2-machine body, 3-first flow channel, 4-heating ring, 5-screw, 6-mold core, 7-second flow channel, 8-air inlet pipe, 9-middle bowl-shaped mold, 10-inner air outlet pipe, 11-outer air outlet pipe, 12-first guide roller, 13-traction roller, 14-second guide roller, 15-third guide roller, 16-wind-up roller, 17-first motor, 18-bearing, 19-belt, 20-second motor, 21-film body, 22-driven roller.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

The following detailed description is provided for the specific embodiments of the present invention.

Example 1

Referring to fig. 1 to 3, a nine-layer co-extrusion film blowing mold comprises an extruder 1, a body 2, a first flow channel 3, a heating ring 4, screws 5, a mold core 6, a second flow channel 7, an air inlet pipe 8, a middle bowl-shaped mold 9, an inner air outlet pipe 10, an outer air outlet pipe 11, a first guide roller 12, a traction roller 13, a second guide roller 14, a third guide roller 15, a wind-up roller 16, a first motor 17, a bearing 18, a belt 19, a second motor 20, a film body 21 and a driven roller 22, wherein nine extruders 1 are distributed in parallel, a containing cavity for melting raw material particles is arranged in the extruder 1, the bottoms of the nine extruders 1 are respectively connected with the first flow channel 3, the bottom of the first flow channel 3 is provided with the second flow channel 7, screws 5 are arranged below the body 2, and the screws 5 are in contact with the mold core 6.

The second flow channel 7 is positioned between the mold core 6 and the middle bowl-shaped mold 9, and the heating ring 4 is distributed on the outer side of the machine body 2.

The air-supply line 8 is connected through the tuber pipe to middle bowl form mould 9 inboard, and the inboard of middle bowl form mould 9 is provided with inside play tuber pipe 10, inside play tuber pipe 10 is connected with outside play tuber pipe 11 through the tuber pipe, and the highly-compressed air in the air-supply line 8 blows film body 21 greatly through middle bowl form mould 9, goes out tuber pipe 10 and outside play tuber pipe 11 through inside again and discharges to blow the film to the thickness of settlement.

The mould core 6's below is provided with first deflector roll 12, carry over pinch rolls 13 and second deflector roll 14 in proper order, and the right side of second deflector roll 14 is provided with third deflector roll 15, and the right side of third deflector roll 15 is provided with wind-up roll 16, wind-up roll 16 internal connection has first motor 17.

A driven roller 22 is arranged on the left side of the traction roller 13, a bearing 18 is arranged at the bottom of the traction roller 13, and the bearing 18 is connected with a second motor 20 through a belt 19.

Example 2

Referring to fig. 1-3, a nine-layer co-extrusion film blowing mold comprises an extruder 1, a body 2, heating rings 4, screws 5, a mold core 6, an air inlet pipe 8, a middle bowl-shaped mold 9, an inner air outlet pipe 10, an outer air outlet pipe 11 and a wind-up roll 16, wherein nine extruders 1 are arranged in parallel, a containing cavity for melting raw material particles is arranged in the extruder 1, the bottoms of the extruders 1 are respectively connected with a first flow channel 3, a second flow channel 7 is arranged at the bottom of the first flow channel 3, the screws 5 are arranged below the body 2, the screws 5 are in contact with the mold core 6, and the heating rings 4 are distributed on the outer side of the body 2.

Different from the embodiment 1, the second flow passage 7 is positioned at the middle position between the mold core 6 and the middle bowl-shaped mold 9, and the gap of the second flow passage 7 is adjusted by changing the relative position of the mold core 6 and the middle bowl-shaped mold 9 through the adjusting screw 5, so that the uniformity of the film thickness is adjusted.

The rest of the structure of this example is the same as example 1.

The utility model discloses a theory of operation is:

the embodiment of the utility model provides a mould adopts nine independent extruders, and nine independent extruders melt nine kinds of polyethylene particles respectively, have solved current film function singleness, the too high problem of raw materials cost to realize that the film has the functional characteristics of nine layers of films. The screw 5 is arranged below the machine body 2 of the nine-layer co-extrusion film blowing mold, the screw 5 is in contact with the mold core 6, the second flow channel 7 is arranged in the middle of the mold core 6 and the middle bowl-shaped mold 9, the middle bowl-shaped mold 9 is arranged on the inner side of the mold core 6, the gap between the second flow channel 7 is adjusted by adjusting the relative position of the mold core 6 and the middle bowl-shaped mold 9 through adjusting the screw 5, and therefore the uniformity of the thickness of the film is adjusted.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a blown film mould that nine layers are crowded altogether, includes extruder (1), organism (2), first runner (3), heating ring (4), screw (5), mold core (6) and carry over pinch rolls (13), its characterized in that, there are nine in extruder (1), nine extruder (1) distributes side by side, is equipped with the appearance chamber that is used for the raw materials particle to melt in extruder (1), nine extruder (1) bottom links to each other with first runner (3) respectively, and the bottom of first runner (3) is provided with second runner (7), and the below of organism (2) is provided with screw (5), screw (5) contact with mold core (6).

2. The nine-layer co-extrusion film blowing mold according to claim 1, wherein the second runner (7) is located in the middle of the mold core (6) and the middle bowl-shaped mold (9), and heating rings (4) are distributed on the outer side of the machine body (2).

3. Nine-layer co-extrusion film blowing mold according to claim 2, characterized in that the inner side of the middle bowl-shaped mold (9) is connected with the air inlet pipe (8) through an air pipe, the inner side of the middle bowl-shaped mold (9) is provided with an inner air outlet pipe (10), and the inner air outlet pipe (10) is connected with the outer air outlet pipe (11) through an air pipe.

4. The nine-layer co-extrusion film blowing mold according to claim 2, wherein a first guide roller (12), a traction roller (13) and a second guide roller (14) are sequentially arranged below the mold core (6), a third guide roller (15) is arranged on the right side of the second guide roller (14), a winding roller (16) is arranged on the right side of the third guide roller (15), and a first motor (17) is connected inside the winding roller (16).

5. Nine-layer co-extrusion blown film die according to claim 4, characterized in that a driven roller (22) is arranged on the left side of the pulling roll (13), a bearing (18) is arranged at the bottom of the pulling roll (13), and the bearing (18) is connected with a second motor (20) through a belt (19).