CN213976298U - Improve coiling mechanism of curtain coating membrane outward appearance - Google Patents

Abstract

The utility model discloses an improve coiling mechanism of curtain coating membrane outward appearance turns right from a left side and includes in proper order: extruder, fuse-element filter, die head, chill roll, transition roller, calibrator, side cut station, corona unit, storage mechanism, tensioning roller, slip cutter, rolling compression roller, film rolling axle and rolling pedestal, the chill roll is located the die head under, just the chill roll with the linear velocity of transition roller is the same, storage mechanism both ends are equipped with tension sensor. The utility model discloses a through the improvement of curtain coating film production line rolling system operation method, reach the effect that rolling tube end film does not have lotus leaf limit, fold, bubble, improve the rolling quality, improve the film quality, reduce the extravagant purpose of tube end film.

Description

Improve coiling mechanism of curtain coating membrane outward appearance

Technical Field

The utility model relates to a film and rolling equipment technical field, its concretely relates to improve coiling mechanism of curtain coating membrane outward appearance

Background

The casting film is divided into a single-layer casting film and a multi-layer co-extrusion casting film. The performance of the single-layer casting film is single; the multilayer coextrusion casting film is wider than a single-layer film in material selection, and materials meeting the requirements of all layers can be independently selected through design, so that different functions and purposes are given to the film. Compared with film blowing, the method has the characteristics of high production speed, high yield, and good film transparency, glossiness and thickness uniformity. Meanwhile, because the film is a flat extrusion film, the subsequent processes such as printing, compounding and the like are very convenient, and therefore, the film is widely applied to the packaging and logistics application of textiles, flowers, foods and daily necessities.

In recent years, the technology level has been increasing, and the application fields of the film have been expanding, such as electronics, flat panel display, automobile, electric power, etc. Therefore, high requirements are placed on the film, such as temperature resistance, strength, flatness, appearance and the like. The traditional equipment is mainly designed in consideration of production efficiency and has low requirements on quality and appearance. There are various defects when the film is rolled: the use of the film in the high-requirement field is influenced by the explosion ribs, bubbles, folds, indentations, folds at the bottom of the tube, bubbles and the like. These defects are generated on the premise of uniform film surface thickness, and the main reason is that the winding mode has problems. For this reason, corresponding technical solutions need to be researched and solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an improve coiling mechanism and method of curtain coating membrane outward appearance is the improvement through rolling system operation method, reaches the effect that rolling tube bottom film does not have lotus leaf limit, fold, bubble, improves the rolling quality, improves the film quality, reduces the extravagant purpose of tube bottom film.

In order to solve the above problems, the utility model adopts the following technical proposal:

the utility model provides an improve coiling mechanism of curtain coating film outward appearance, includes from a left side to the right side in proper order: extruder, fuse-element filter, die head, chill roll, transition roller, calibrator, side cut station, corona unit, storage mechanism, tensioning roller, slip cutter, rolling compression roller, film rolling axle and rolling pedestal, the chill roll is located the die head under, just the chill roll with the linear velocity of transition roller is the same, storage mechanism both ends are equipped with tension sensor.

As the improvement of the technical scheme, the storage mechanism is composed of two rows of guide rollers which are arranged in parallel up and down and is movable, a plurality of corresponding upper row guide roller brackets are arranged, and the tension sensors are arranged on the guide rollers at the two ends of the storage mechanism.

As an improvement of the technical scheme, the tensioning rollers are arranged in an S shape.

As an improvement of the technical scheme, the winding compression roller base is provided with a linear guide rail and an air cylinder.

As an improvement of the above technical solution, the winding method for improving the appearance of the casting film comprises the following steps:

s1: as shown in fig. 1: the cast film passes through a guide roller of a storage mechanism, presses the guide roller with tension sensors at two ends, passes through a tensioning roller arranged in an S shape, reaches a tightening press roller (a rubber roller with elasticity), and a linear guide rail and an air cylinder of a tightening press roller base can enable the tightening press roller to be tightly attached to a tube core on a winding shaft, the tube core is wrapped by the film, and the winding press roller can discharge air bubbles between the films so as to enable the film to be wound and flat (wherein V1 is V2 is V3 is L is 0);

s2: as shown in fig. 2: the extruder runs at a constant speed, all the active guide rails and the passive guide rails keep consistent linear speed, and the diameter of the tube core is continuously increased after the tube core is coated with the film (wherein V1 is V2 is V3 is 0 liter);

s3: as shown in fig. 3: when the winding reaches the set meter number, the V1 is kept unchanged, the V2 and the V3 decelerate, the V accelerates, and simultaneously the following conditions are met: v1 ═ V2+2 ═ 4 × (V liter: the ascending speed of the upper row of guide roller holders of the stock mechanism, in the figure, there are 4 guide rollers, and every time the guide roller holders ascend by 1 unit length, the film can be elongated by 4 ═ 2 ═ 8 unit lengths, which is equivalent to the film being stored in the stock mechanism;

s4: v2 and V3 are decelerated to stop, V1 is kept unchanged, and V rises reach a stable value, so that the following conditions are met: v1 is 2 × 4 × V liter, the winding press roller retreats, the winding shaft bracket rotates clockwise 90 degrees (4-shaft winding is shown in the figure, 3-shaft and 2-shaft winding can be also realized, the corresponding rotation degree is 120 degrees and 180 degrees), and the next winding shaft with the tube core is in place;

s5: the winding pressing roller moves forwards until the winding pressing roller abuts against a tube core on the winding shaft, the film pressing roller presses down to enable the film to be tightly attached to the tube core (the layer-coating glue on the tube core or double-sided adhesive tape is adhered to enable the film to be more closely adhered to the wall of the tube core without air bubbles), the scribing knife falls right above the tube core, the scribing knife slides from head to tail along the top of the tube core to cut off the film, the scribing knife and the film pressing roller are lifted up, the winding pressing roller rotates at an accelerated speed, an upper row of guide roller bracket of the storage mechanism falls downwards at the same time, and V1 is V2+ 2V, and V2 is V3;

s6: v2 and V3 are synchronously accelerated, V is decelerated, and V1 is kept unchanged until V1 < V2-V3 and V1-V2-2-V4 are reduced;

s7: when the upper row of guide roller brackets of the storage mechanism returns to the initial position, V is lowered to 0, V1 is V2 is V3, and the normal winding state is entered.

Compared with the prior art, the utility model discloses an implement the effect as follows:

the utility model discloses a before the rolling part of conventional curtain coating film production facility, one set of storage mechanism has been increased to reach and extrude under the unchangeable condition of curtain coating speed, through the action about the storage mechanism, store the film that is not by the rolling, winding mechanism cuts off the film under quiescent condition, guarantees that the fracture is neat, and the tube core is hugged closely to new film, does not have bubble and fold.

Drawings

Fig. 1 includes: 1.1 to 1.6, which are schematic structural diagrams of working states when a film is rolled in the prior art;

FIG. 2 is a schematic view of the winding apparatus for improving the appearance of the cast film according to the present invention;

fig. 3 includes: 3.1 to 3.5, do the utility model discloses operating condition structure schematic diagram when the film rolling.

Detailed Description

The present invention will be described with reference to specific embodiments.

The film rolling in the traditional technology is not stopped, and the specific operation is as follows:

operation 1: as shown in fig. 1-1.1, starting to roll;

operation 2: as shown in fig. 1-1.2, when the number of meters of the rolled film reaches the roll changing length, the rolling compression roller moves leftwards; the winding shaft rotates automatically through power, so that tension is kept and the winding is not loosened;

operation 3: as shown in fig. 1-1.3, the winding shaft frame rotates clockwise, and the winding shaft with the film rotates automatically by power to keep tension without unwinding;

and operation 4: as shown in fig. 1-1.4, the winding roller moves to the right, when the tube core (coated with glue or adhered with double-sided adhesive tape) on the winding shaft B is pressed, the tube core is wound on the film, the film on the winding shaft A is also reversely wound on the tube core of the shaft B, the cutter (in the form of a sawtooth chopper and a sliding cutter) is lifted, and the film is cut;

operation 5: as shown in fig. 1-1.5, because the strength, toughness, puncture resistance and the like of the film are different, the cut edge of the film is irregular, or the film is torn and the like, the film is wrapped on the inner layer of a tube core B, tube bottom bubbles exist, the number of layers of the film wrapped at different positions is different, the film is wrinkled and rolled, and the like, the defects at the tube bottom are compacted by the continuously wrapped film, and the bulged part causes local stretching deformation of the film and is kept all the time and cannot be recovered;

operation 6: as shown in fig. 1-1.6, the rolling is continued, and the rolling quality of the whole roll of film is affected by the defects from the bottom of the tube.

The scheme is as follows: improve the coiling mechanism of curtain coating membrane outward appearance, turn right from a left side and include in proper order: extruder 1, fuse-element filter 2, die head 3, chill roll 4, transition roller 5, calibrator 6, side cut station 7, corona unit 8, storage mechanism 9, tensioning roller 10, slip cutter 11, rolling compression roller 12, film compression roller 13 and coiling pedestal 14, chill roll 4 is located die head 3 under, and chill roll 4 is the same with the linear velocity of transition roller 5, and storage mechanism 9 both ends are equipped with tension sensor 91. The material storage mechanism 9 consists of two rows of guide rollers which are arranged in parallel up and down, a plurality of corresponding upper row guide roller brackets are movably arranged, and the tension sensors 91 are arranged on the guide rollers at two ends of the material storage mechanism 9; the tensioning rollers 10 are arranged in an S shape; and a linear guide rail and an air cylinder are arranged at the base position of the winding compression roller 12. The utility model discloses the disconnected membrane of cutter under rolling axle quiescent condition, the compression roller lets the film cladding as far as possible live the tube core, the blade that cuts off the film cuts off the position directly over the tube core, rubber coating on the tube core, adhesive film and tube core, extruder 1 heats the melting propelling movement with plastics, through fuse-element filter 2 (getting rid of crystallization and burnt piece, impurity), get into die head 3, and come out from the die orifice, flow to on the chill roll 4, the cooling is stereotyped, form the film, and through collinear speed pivoted transition roller 5, thickness gauge 6, side cut station 7, corona unit 8, reach storage mechanism 9. The pressure roller type passive winding can rotate through the driving pressure roller to drive a passive tube core and a film to be wound, when a tube bottom film is neatly and smoothly coated on the tube core, a subsequent film can be smoothly wound, bubbles can be driven away, the winding quality is good, the film cannot be wasted, and when the tube bottom film is changed, wrinkles (the reason of a cutting edge, the unevenness of the edge of the cutting edge and/or the breakage of the film to generate a lotus leaf edge) exist on the tube bottom. The utility model discloses an aim at, be exactly through rolling system operation method's improvement, reach the effect that rolling tube end film does not have lotus leaf limit, fold, bubble, improve the rolling quality, improve the film quality, reduce the extravagant purpose of tube end film.

Wherein, improve the rolling method of curtain coating membrane outward appearance as follows:

s1: as shown in fig. 3-3.1: the cast film passes through guide rollers of a storage mechanism 9, presses the guide rollers with tension sensors 91 at two ends, passes through tensioning rollers 10 arranged in an S shape, reaches a tightening press roller 12, and passes through a linear guide rail and an air cylinder at the base of the tightening press roller 12, so that the tightening press roller 12 can be tightly attached to a tube core on a winding shaft, the tube core is wrapped by the film, and the winding press roller 12 can discharge bubbles among the films to enable the film to be wound and flattened (wherein V1 is V2 is V3V is 0 liter);

s2: as shown in fig. 3-3.2: the extruder runs at a constant speed, all the active guide rails and the passive guide rails keep consistent linear speed, and the diameter of the tube core is continuously increased after the tube core is coated with the film (wherein V1 is V2 is V3 is 0 liter);

s3: as shown in fig. 3-3.3: when the winding reaches the set meter number, the V1 is kept unchanged, the V2 and the V3 decelerate, the V accelerates, and simultaneously the following conditions are met: v1 ═ V2+2 × 4 × (V liter: the ascending speed of the upper row of guide roller frames of the stocker 9, in the figure, 4 guide rollers are provided, and the length of the film can be increased by 4 × 2 ═ 8 unit lengths for every 1 unit length of ascending of the guide roller frames, which corresponds to the length of the film stored in the stocker 9;

s4: as shown in fig. 3-3.4: v2 and V3 are decelerated to stop, V1 is kept unchanged, and V rises reach a stable value, so that the following conditions are met: v1 is 2 × 4 × V liter, the winding press roller 12 retreats, the winding shaft frame 14 rotates clockwise 90 degrees (4-shaft winding is shown in the figure, 3-shaft and 2-shaft winding can be adopted, the corresponding rotation degree is 120 degrees and 180 degrees), and the next winding shaft with the tube core is in place;

s5: as shown in fig. 3-3.5: the winding press roller 12 moves forwards until the winding press roller abuts against a tube core on the winding shaft, the film press roller presses down to enable the film to be attached to the tube core (the layer-coating glue on the tube core or double-sided adhesive tape is adhered to enable the film to be adhered to the wall of the tube core more comfortably without air bubbles), the scribing knife falls right above the tube core, the scribing knife slides from head to tail along the top of the tube core to cut off the film, the scribing knife and the film press roller are lifted, the winding press roller 12 rotates at an accelerated speed, an upper row of guide roller bracket of the storage mechanism 9 descends downwards at the same time, V1 is V2+ 2V, and V2 is V3;

s6: as shown in fig. 3-3.6: v2 and V3 are synchronously accelerated, V is decelerated, and V1 is kept unchanged until V1 < V2-V3 and V1-V2-2-V4 are reduced;

s7: as shown in fig. 3-3.7: when the upper row guide roller bracket of the storage mechanism 9 returns to the initial position, V drops to 0, V1 to V2 to V3, and the normal winding state is entered.

The foregoing is a detailed description of the invention in connection with specific embodiments thereof, and it is not intended that the invention be limited to these specific embodiments. To the utility model belongs to the technical field of technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses the scope of protection.

Claims (4)

1. The utility model provides an improve coiling mechanism of curtain coating membrane outward appearance which characterized in that: from left to right in proper order includes: extruder (1), melt filter (2), die head (3), chill roll (4), transition roller (5), calibrator (6), side cut station (7), corona unit (8), storage mechanism (9), tensioning roller (10), slip cutter (11), rolling compression roller (12), film compression roller (13) and rolling pedestal (14), chill roll (4) are located die head (3) under, just chill roll (4) with the linear velocity of transition roller (5) is the same, storage mechanism (9) both ends are equipped with tension sensor (91).

2. A winding device for improving appearance of a casting film according to claim 1, wherein: the material storage mechanism (9) is composed of two rows of guide rollers which are arranged in parallel from top to bottom, a plurality of corresponding upper row guide roller brackets are movably arranged on the guide rollers, and the tension sensor (91) is arranged on the guide rollers at the two ends of the material storage mechanism (9).

3. A winding device for improving appearance of a casting film according to claim 1, wherein: the tensioning rollers (10) are arranged in an S shape.

4. A winding device for improving appearance of a casting film according to claim 1, wherein: and a linear guide rail and an air cylinder are arranged at the base position of the winding compression roller (12).

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