CN117944357A - Coiled material laminating device and coiled material production line - Google Patents

Abstract

The invention discloses a coiled material laminating device and a coiled material production line, wherein the coiled material laminating device comprises: a frame; the laminating rollers comprise two laminating rollers which are arranged in parallel up and down, a reserved gap is defined between the two laminating rollers, and the coiled material body horizontally passes through the reserved gap; the film release rollers are used for respectively correspondingly passing through the two surfaces of the coiled material body and the film covering rollers, and the film covering rollers rotate and press against the isolation films; the width of the isolating film is larger than that of the coiled material body, and the side edge of the isolating film protrudes out of the side edge of the coiled material body to be used as a reserved edge; the sealing devices are respectively positioned at two sides of the coiled material body at the downstream of the laminating roller, and are used for enabling the reserved edges of the two isolating films to be mutually contacted in the thickness direction when the coiled material body after being laminated passes through the sealing devices; and the welding device is used for periodically welding the two reserved edges which are in contact with each other.

Description

Coiled material laminating device and coiled material production line

Technical Field

The invention relates to the technical field of layered product processing, in particular to a coiled material laminating device and a coiled material production line.

Background

The (modified) asphalt rolls are generally used for laying on the ceiling of a building to perform waterproofing and corrosion prevention effects, and asphalt rolls of the prior art include two types, one being a fetal roll and the other being a non-fetal roll, the structural distinction between a fetal roll and a non-fetal roll being that the fetal roll has a base such as a nonwoven fabric therein, and the non-fetal roll does not have such a base.

In the prior art, the equipment for producing the bitumen coiled material with the tyre is as follows: a tire base supply device, an asphalt impregnation device, a laminating device and a winding device; the production process of the bitumen coiled material with the tyre comprises the following steps: the sheet-shaped substrate such as non-woven fabric provided by the substrate supply device is firstly passed through an asphalt tank in an asphalt dipping device, the substrate is dipped by molten asphalt in the process of passing through the asphalt tank, the dipped substrate is cooled to form a coiled material body, then the coiled material body is continuously conveyed to pass through a laminating device, the laminating device is used for laminating two surfaces of the coiled material body, and the coiled material formed after lamination is curled into a coil by a coiling device.

It is known to apply a coating on both surfaces of a coil body in order to prevent the coil from sticking between the coil bodies after crimping, thereby affecting unwinding of the coil. The prior art laminating apparatus generally includes two laminating rollers, two film releasing rollers wound with a release film, and several guide rollers; the two film coating rollers are arranged in parallel, a certain gap is reserved between the two film coating rollers, the immersed and cooled coiled material body passes through the gap between the two film coating rollers, the two film release rollers are respectively positioned at the upstream of the film coating rollers and above and below the coiled material body, the two film release rollers pass through the surface of the coiled material body and between the film coating rollers after respectively passing through the corresponding guide rollers, and the two film coating rollers rotate in opposite directions and press the isolating film with a certain pressure so as to press the isolating film to the surface of the coiled material body.

The laminating equipment and the laminating procedure in the prior art have the following defects:

1. The two end surfaces of the coiled material body after the film coating are still exposed to the external environment, and adverse factors of the external environment can influence the coiled material body, for example, when the coiled material body is stored in the open air, dust can enter the coiled material body through gaps possibly generated between the end surfaces of the coiled material body and the isolating film.

2. During film coating, the possible relative transverse offset between the coiled material body and the isolating film causes the exposed area of the coiled material body near the side edge, and after the coiled material is curled, the exposed areas of the inner ring and the outer ring can be adhered.

3. In the actual film coating process, the isolation film may not be stably attached to the surface of the coiled material body, mainly because: before the laminating, there is great difference in temperature between barrier film and the coiled material body, and specifically, the temperature of barrier film is lower, and the temperature of coiled material body is higher to lead to: after the isolating film is contacted with the coiled material body, the isolating film generates larger deformation relative to the coiled material body, thereby seriously affecting the combination effect between the isolating film and the coiled material body. The surface of the coil body, which is not stably attached with the isolation film, can affect coil curling and use. In the prior art, although the attaching effect of the separator can be improved to some extent by adding a cooling process to both sides of the surface of the coil body upstream of the laminating apparatus and/or adding a heating process to both sides of the surface of the separator upstream of the laminating apparatus in order to reduce the temperature difference, the improvement of the attaching effect is still insufficient because the control of the temperature difference is difficult, for example, when the temperature of the coil body is too low due to the implementation of cooling, the adhesive ability of the asphalt in the coil body is lowered to cause the separator to be unable to attach to the coil body.

Disclosure of Invention

Aiming at the technical problems in the prior art, the embodiment of the invention provides a coiled material laminating device and a coiled material production line.

In order to solve the technical problems, the technical scheme adopted by the embodiment of the invention is as follows:

A web laminating apparatus comprising:

The rack comprises two grillages which are vertically arranged at intervals in parallel;

the laminating rollers comprise two laminating rollers, and the two laminating rollers are transversely arranged between the two plate frames; the two laminating rollers are arranged in parallel up and down, a reserved gap is defined between the two laminating rollers, and a coiled material body formed by dipping and cooling horizontally passes through the reserved gap;

The film release rollers are wound with isolating films, are transversely arranged between the two plate frames, are respectively positioned above and below the coiled material body at the upstream of the film coating rollers, and are respectively correspondingly passed between the two surfaces of the coiled material body and the film coating rollers, and when the coiled material body and the isolating films pass through the reserved gaps, the film coating rollers rotate and are pressed against the isolating films; wherein: the width of the isolating film is larger than that of the coiled material body, so that after passing through the reserved gap, the side edge of the isolating film protrudes out of the side edge of the coiled material body to serve as a reserved edge;

a sealing device comprising two sealing devices, wherein the two sealing devices are respectively positioned at two sides of the coiled material body at the downstream of the laminating roller and fixed at the inner side of the plate frame, and the sealing device is used for enabling the reserved edges of the two isolating films to be mutually contacted in the thickness direction when the coiled material body after being laminated passes through the sealing device;

And a welding device provided in the sealing device or downstream of the sealing device, the welding device being configured to periodically weld the two predetermined sides that are in contact with each other.

Preferably, the sealing device includes:

A board seat vertically arranged;

The guide blocks comprise two guide blocks, the two guide blocks are fixed on the inner side wall of the plate seat, and the two guide blocks are symmetrically arranged up and down; each guide block has intersecting horizontal and inclined walls; the horizontal walls of the two guide blocks are opposite and define a conveying gap, and the inclined walls of the two guide blocks are opposite;

The front end of the separation strip extends into a space between the inclined walls of the two guide blocks, so that the two inclined surfaces of the front end of the separation strip and the inclined walls of the two guide blocks respectively define two guide gaps converging towards the conveying gap, the reserved edges of the two separation films respectively pass through the two guide gaps, and the two reserved edges are mutually close to each other under the guidance of the two guide gaps and then pass through the conveying gap;

the elastic pre-pressing parts comprise two elastic arms, and the head parts of the elastic arms are provided with pre-pressing heads; the two elastic pre-pressing parts are symmetrically arranged at the two opposite horizontal walls, pre-pressing heads of the two elastic arms of the two elastic pre-pressing parts are opposite to form two groups of pre-pressing heads which are arranged at intervals, and the two reserved edges sequentially pass through the two groups of pre-pressing heads;

The welding device is vertically arranged in the guide block above, and the end head of the welding device extends out of the horizontal wall of the guide block and faces the reserved edge between the two groups of prepressing heads so as to be used for welding the reserved edge.

Preferably, the elastic pre-pressing member is formed by bending a plate-shaped body; the two elastic arms of the elastic pre-pressing part are bent to be in a state of inclining forwards, so that an included angle with the vertex angle protruding forwards is formed between the two opposite elastic arms; the pre-pressing head is formed with an arc-shaped surface by bending.

Preferably, the two guide blocks are provided with limiting walls, the limiting walls of the two guide blocks are opposite to each other and define limiting guide grooves, and the side edges of the coiled material body pass through the limiting guide grooves.

Preferably, the rear end of the separation strip extends between the two film laminating rollers.

Preferably, two film edge driving rollers which are arranged up and down are arranged on two sides of the coiled material at the downstream of the sealing device, and the two film edge driving rollers roll the reserved edge and rotate in opposite directions.

Preferably, the laminating roller comprises a main body section and end sections positioned at two sides of the main body section; an accommodating cavity is arranged in the end section, and an air cooling device is arranged in the accommodating cavity;

The air cooling device comprises:

The air duct is arranged in the accommodating cavity and comprises an inner cylinder and an outer cylinder, an annular airflow cavity is defined between the inner cylinder and the outer cylinder, and circumferentially arranged radiating fins are arranged in the airflow cavity;

The air inlet pipe extends into the accommodating cavity from the end shaft of the laminating roller and is communicated with the outer end of the airflow cavity;

the air outlet pipe extends into the accommodating cavity from the outer end of the air inlet pipe and is communicated with the inner end of the air flow cavity;

The inner end of the air duct and the film covering roller form rotatable assembly through a bearing, and the air inlet pipe and the end shaft form rotatable assembly through a bearing;

The outer end of the air outlet pipe is longer than the outer end of the air inlet pipe; an air inlet hole is formed in the pipe wall of the outer end of the air inlet pipe, and an air outlet hole is formed in the pipe wall of the outer end of the air outlet pipe.

Preferably, microprotrusions are disposed on the outer peripheral surface of the main body section of the laminating roller.

The invention also discloses a coiled material production line, which comprises the following steps: the device comprises a tire base release roller, asphalt dipping equipment and rolling equipment, and further comprises the coiled material laminating device.

Preferably, the asphalt dipping equipment at least comprises a first asphalt dipping tank and a second asphalt dipping tank; a first cooling device is arranged between the first asphalt dipping tank and the second asphalt dipping tank, and a second cooling device is arranged between the second asphalt dipping tank and the coiled material film covering device;

The base impregnated by the first asphalt dipping tank is cooled by the first cooling equipment and then enters the second asphalt dipping tank, and the base impregnated by the second asphalt dipping tank is cooled by the second cooling equipment to form the coiled material body.

Compared with the prior art, the coiled material laminating device and the coiled material production line provided by the embodiment of the invention have the beneficial effects that:

1. The width of the isolation film is configured to be larger than the width of the coiled material body, so that after the film is covered by the film covering roller, the isolation film protrudes out of the reserved edges of the coiled material body, the two reserved edges are guided and folded by the sealing device, and the two reserved edges are welded by the welding device, so that the reserved edges cover the end face and the side edge of the coiled material body, the end face and the side edge of the coiled material body are prevented from being exposed to the external environment, the coiled material body can be prevented from being influenced by adverse factors of the external environment, and the side wall of the coiled material body in a curled state can be prevented from being adhered to each other due to exposure.

2. Other advantages of the coil coating device and the coil production line provided by the invention are described in the specific embodiments of the specification.

Drawings

Fig. 1 is a schematic structural diagram of a coil production line provided by the invention.

Fig. 2 is a front view of the roll film laminating apparatus provided by the present invention.

Fig. 3 is a top view of the roll film laminating apparatus provided by the present invention.

Fig. 4 is a schematic perspective view of a rear side view of the roll film laminating apparatus according to the present invention.

Fig. 5 is a schematic perspective view of a front view of the roll film laminating apparatus according to the present invention.

Fig. 6 is a partial view showing a three-dimensional structure of a longitudinal section of a laminating roller in the coil laminating apparatus according to the present invention.

Fig. 7 is a schematic perspective view of a cross section of a laminating roller in the coil laminating apparatus according to the present invention.

Fig. 8 is a schematic perspective view of the outside view of the sealing device in the roll film laminating apparatus according to the present invention.

Fig. 9 is a schematic perspective view of the inner side view of the sealing device in the roll film laminating apparatus according to the present invention.

Fig. 10 is a perspective exploded view of a sealing device in the coil coating device according to the present invention.

Fig. 11 is a plan view of a longitudinal section of a sealing device in a roll film laminating apparatus according to the present invention.

Fig. 12 is a plan view of a cross section of a sealing device in the coil coating device according to the present invention.

In the figure:

100-a coiled material laminating device; 200-asphalt impregnating equipment; 201-a first asphalt impregnation tank; 202-a second asphalt impregnation tank; 203-a first cooling device; 204-a second cooling device; 205-dipping press roller; 206-immersing the driving roller; 207-dipping guide roller; 300-coiled material; 301-a coil body; 302-a separator; 3021-reserving edges; 3022-welding points; 303-a fetal group; 10-laminating rollers; 11-a body section; 12-end section; 13-end shaft; 14-microprotrusions; 20-a film release roller; 30-a sealing device; 31-a plate seat; 32-a guide block; 321-inclined walls; 322-horizontal wall; 323-sink; 324-limiting wall; 33-dividing strips; 331-ramp surface; 34-a welding device; 341-welding the end head; 35-an elastic pre-compression part; 351-elastic arms; 352-pre-press head; 361-guiding slit; 362-a conveying gap; 363-limit guide slot; 40-film edge driving roller; 50-laminating a guide roller; 60-tensioning mechanism; 61-tensioning roller; 70-web drive roller; 80-a frame; 81-plate frame; 82-a synchronous pulley; 90-air cooling equipment; 91-an outer cylinder; 92-an inner cylinder; 93-airflow chamber; 94-heat radiating fins; 95-air inlet pipe; 951-an air inlet; 96-outlet pipe; 961-air outlet holes.

Detailed Description

The present invention will be described in detail below with reference to the drawings and detailed description to enable those skilled in the art to better understand the technical scheme of the present invention.

As shown in fig. 1, the present invention discloses a roll film laminating apparatus 100 and a roll production line including the roll film laminating apparatus 100, the roll production line including, in addition to the roll film laminating apparatus 100: a tread base 303 releasing roller (not shown), an asphalt dipping apparatus 200, a first cooling apparatus 203, a second cooling apparatus 204, a winding apparatus; the base 303 releasing roller, the asphalt dipping device 200, the coiled material laminating device 100 and the winding device are sequentially arranged along the conveying direction.

The base 303 releasing roller releases a sheet-like base 303 such as nonwoven fabric by rotating; the pitch impregnation apparatus 200 includes a first pitch impregnation tank 201 and a second pitch impregnation tank 202 arranged in a conveyance direction of the tread base 303, molten pitch is contained in each of the first pitch impregnation tank 201 and the second pitch impregnation tank 202, impregnation guide rollers 207 are arranged in front and rear of each of the first pitch impregnation tank 201 and the second pitch impregnation tank 202, impregnation press rollers 205 are arranged in each of the first pitch impregnation tank 201 and the second pitch impregnation tank 202, two impregnation drive rollers 206 arranged up and down are arranged in front of each of the first pitch impregnation tank 201 and the second pitch impregnation tank 202, a first cooling apparatus 203 is arranged between the first pitch impregnation tank 201 and the second pitch impregnation tank 202, and a second cooling apparatus 204 is arranged between the web laminating apparatus 100 and the second pitch impregnation tank 202. The first cooling device 203 and the second cooling device 204 may be air cooling devices 90 or water cooling devices.

The tread base 303 released by the tread base 303 releasing roller passes through the pitch in the first pitch impregnation tank 201 under the guide of the impregnation guide roller 207 and the pressing of the impregnation pressure roller 205 in the first pitch impregnation tank 201, thereby achieving the first impregnation, and then, the tread base 303 impregnated for the first time is cooled by the first cooling device 203 under the driving of the impregnation drive roller 206, and the tread base 303 cooled for the first time passes through the pitch in the second pitch impregnation tank 202 under the guide of the impregnation guide roller 207 and the pressing of the impregnation pressure roller 205 in the second pitch impregnation tank 202, thereby achieving the second impregnation, and then, the tread base 303 impregnated for the second time is cooled for the second time by the second cooling device 204 under the driving of the impregnation drive roller 206, thereby forming the coil body 301 substantially shaped in thickness. The coil body 301 formed by dipping is then passed through the coil laminating apparatus 100 in the conveying direction, and the coil laminating apparatus 100 coats both surfaces of the coil body 301 (the coil body 301 after being coated is referred to as a coil 300), and the coil 300 formed by the coating is wound into a roll by a winding device.

The coil production line provided by the invention enables the base 303 to be impregnated twice and cooled after each impregnation, and after the first impregnation and cooling, asphalt impregnated on the base 303 can be stably adhered to the base 303 due to cooling, and more asphalt can be adhered during the second impregnation, so that the impregnation efficiency can be remarkably improved.

Further, the web body 301 after cooling twice is more uniform in hardness and temperature in the thickness direction, which is advantageous in that the web body 301 is not excessively deformed by extrusion when the web body 301 is coated by the web coating apparatus 100.

As shown in fig. 2 to 5 in combination with fig. 1, the roll film laminating apparatus 100 includes: the frame 80, the web drive roller 70, the film release roller 20, the film guide roller 50, the film roller 10, the tensioning mechanism 60, the sealing device 30, and the welding device 34.

The frame 80 comprises two grillages 81, and the two grillages 81 are vertically and alternately arranged; the laminating rollers 10 comprise two laminating rollers 10, the two laminating rollers 10 are transversely arranged on two plate frames 81, the two laminating rollers 10 are arranged in parallel up and down, a reserved gap is defined between the two laminating rollers 10, and the reserved gap is slightly smaller than the sum of the thickness of the coiled material body 301 and the thickness of the two isolating films 302. The end shafts 13 are mounted at two ends of each laminating roller 10, the end shafts 13 of the laminating rollers 10 penetrate through the plate frames 81 and form rotatable assembly with the plate frames 81 through bearings, so that the laminating rollers 10 can rotate, synchronous pulleys 82 are mounted at the outer ends of the end shafts 13 of the two laminating rollers 10 located on the same side, the synchronous pulleys 82 are located on the outer sides of the plate frames 81, and driving equipment such as a motor is used for driving the two synchronous pulleys 82 to synchronously rotate in opposite directions through synchronous belts, so that the laminating rollers 10 are driven to synchronously rotate in opposite directions.

The web drive rollers 70 are located upstream of the laminating rollers 10, i.e. behind the laminating rollers 10, the web drive rollers 70 comprising two web drive rollers 70 arranged one above the other, the web body 301 passing through the two web drive rollers 70, the two web drive rollers 70 driving the web body 301 forward by rotating in opposite directions, and then passing through the gap between the two laminating rollers 10.

The film release rollers 20 include two, each film release roller 20 is wound with a release film 302, the two film release rollers 20 are transversely arranged between the two plate frames 81, the two film release rollers 20 are respectively positioned above and below the coiled material body 301 at the upstream of the laminating roller 10, the release films 302 released from the two film release rollers 20 respectively pass between the two surfaces of the coiled material body 301 and the laminating roller 10, when the coiled material body 301 and the release films 302 pass through a reserved gap, the sum of the thickness of the coiled material body 301 and the thickness of the two release films 302 is smaller than the reserved gap, and accordingly, the two laminating rollers 10 drive the coiled material body 301 forwards in a opposite direction and press the release films 302 against the coiled material body 301, so that the release films 302 can be attached to the coiled material body 301 to a certain extent. The coated web body 301 is referred to as the web 300.

A film-covering guide wheel and a tensioning mechanism 60 are provided between each film-covering roller 10 and the film-releasing roller 20, specifically, the tensioning mechanism 60 has a tensioning roller 61 that can be extended and contracted; the isolating film 302 released from the film releasing roller 20 passes through the film covering guide roller 50, the film covering guide roller 50 is used for forming a certain included angle between the isolating film 302 and the coiled material body 301 which is horizontally conveyed so as to avoid the isolating film 302 from contacting with the coiled material body 301 before passing through the film covering roller 10, and the included angle is reduced as much as possible by reasonably designing the position of the film covering guide roller 50 so as to be used for reducing the wrap angle between the isolating film 302 and the film covering roller 10 and further shortening the contact time between the isolating film 302 and the film covering roller 10; the tension roller 61 presses the release film 302 between the film-coating guide roller 50 and the film-coating roller 10 with a certain pre-tightening force so that the release film 302 has a certain tension.

In the present invention, the width of the separator 302 is configured to be larger than the width of the roll body 301, and the separator 302 is centered in the width direction with the roll body 301, so that after the separator is coated by the two coating rolls 10, the two sides in the width direction of the separator 302 protrude from the two sides of the roll body 301, respectively, and the side of the separator 302 protruding from the roll body 301 may be referred to as a reserved side 3021.

As shown in fig. 4 to 12 and in combination with fig. 2 and 3, the sealing devices 30 include two sealing devices 30, and the two sealing devices 30 are respectively located on both sides of the web body 301 downstream of the laminating roller 10 and fixed to the inner side of the plate frame 81. The sealing device 30 includes: a plate seat 31, a guide block 32, a separation bar 33 and an elastic pre-pressing member 35; the plate seat 31 is vertically arranged, the outer side wall of the plate seat 31 is attached to the inner side of the plate frame 81, a threaded hole is formed in the outer side wall of the plate seat 31, and a bolt penetrates through the plate frame 81 and extends into the threaded hole, so that the plate seat 31 and the plate frame 81 are fixed; the guide blocks 32 include two, and the two guide blocks 32 are attached to the inner side wall of the board seat 31 and fixed with the board seat 31 by bolts. The two guide blocks 32 are symmetrically arranged up and down, each guide block 32 is provided with a horizontal wall 322 and an inclined wall 321 which are intersected, the inclined wall 321 is positioned in front of the horizontal wall 322, the horizontal walls 322 of the two guide blocks 32 are opposite, and accordingly, the two horizontal walls 322 define a conveying gap 362 which extends horizontally, and the inclined walls 321 of the two guide blocks 32 are opposite; the front ends of the dividing strips 33 are arranged in inclined surfaces 331, and the front ends of the dividing strips 33 extend from the rear of the guide blocks 32 to between the two opposite inclined walls 321 so that the inclined surfaces 331 of the front ends of the dividing strips 33 define two guide slits 361 with the inclined walls 321 of the two guide blocks 32, respectively, and the two guide slits 361 converge toward the conveying slit 362 because the two guide slits 361 are defined by the two inclined walls 321 and the two inclined surfaces 331.

As shown in fig. 11 in combination with fig. 5, the web 300 coated by the two coating rolls 10 is then passed through the web coating apparatus 100, and during the process of passing through the web coating apparatus 100, two reserved edges 3021 of the separator 302 protruding from the side edges of the web body 301 are respectively entered into the two guide slits 361 from the rear of the two guide blocks 32, and the two reserved edges 3021 are gradually closed in the thickness direction under the guidance of the two guide slits 361 because the two guide slits 361 converge toward the conveying slit 362, so that the two reserved edges 3021 move forward along the conveying slit 362 in an approaching state after the two reserved edges 3021 enter the conveying slit 362.

As shown in fig. 10 to 12 and in combination with fig. 5, the horizontal wall 322 of each guide block 32 is provided with a sinking groove 323, and the sinking grooves 323 of the two guide blocks 32 are opposite; the elastic pre-pressing parts 35 comprise two, and the two elastic pre-pressing parts 35 are symmetrically arranged in the two sinking grooves 323 respectively; each elastic pre-pressing member 35 is formed by bending a plate-like body, and by bending, each elastic pre-pressing member 35 has two elastic arms 351 inclined toward the front, and an end of each elastic arm 351 is formed by bending with a pre-pressing head 352 having an arc-shaped surface. Of the two elastic pre-pressing members 35 symmetrically arranged, the two elastic arms 351 located in front and behind, which belong to the two elastic pre-pressing members 35, are symmetrical about the conveying slit 362 to form two sets of elastic arms 351, the pre-pressing heads 352 of the ends of the two sets of elastic arms 351 are symmetrical to form two sets of pre-pressing heads 352, the arc-shaped face of each set of pre-pressing heads 352 protrudes from the horizontal wall 322, and the gap between each set of pre-pressing heads 352 is equal to or slightly smaller than the sum of the thicknesses of the two reserved sides 3021.

The two reserved edges 3021 entering the conveying gap 362 sequentially pass through the gaps of the two groups of pre-pressing heads 352 of the two elastic pre-pressing members 35, in the process of passing through the two groups of pre-pressing heads 352, the two reserved edges 3021 are further close to and contacted by each other due to the limiting and micro-pressing action of the two groups of pre-pressing heads 352 on the two reserved edges 3021, and in addition, the reserved edges 3021 between the two groups of pre-pressing heads 352 can also form a tensioning state due to the action of the two pre-pressing heads 352, so that the reserved edges 3021 can be kept in a flat state.

A vertical mounting hole is formed in the guide block 32 above, the mounting hole corresponds to an area where the reserved edge 3021 between the two groups of pre-pressing heads 352 is located, the welding device 34 is inserted into the mounting hole, the welding end 341 of the welding device 34 extends out of the horizontal wall 322 of the guide block 32 to be close to or contact with the reserved edge 3021, the welding device 34 performs welding on the reserved edge 3021 every preset time (for example, every 0.3 seconds to 0.5 seconds), so that two reserved edges 3021 form a welding point 3022 every certain distance, and as the two reserved edges 3021 have a welding point 3022 every certain distance, the reserved edges 3021 are combined, and the end face and the side of the coiled material body 301 are further covered. The welding device 34 may be a plurality of types of welding devices 34, and an ultrasonic welding head is preferably selected as the welding device 34.

As shown in fig. 2 and 3 in combination with fig. 11, in some preferred constructions, two film edge drive rollers 40 are provided on both sides of the web 300 downstream of the sealing device 30, one above the other, the two film edge drive rollers 40 being pressed against the reserve edge 3021 and rotating in opposite directions. The film edge driving roller 40 is used for overcoming the friction force of the pre-pressing head 352 of the elastic pre-pressing part 35 to the reserved edge 3021 so as to enable the reserved edge 3021 to synchronously move forward with the coiled material body 301, and on the other hand, the tension (smaller) applied by the film edge driving roller 40 to the reserved edge 3021 enables the reserved edge 3021 between the two groups of pre-pressing heads 352 to have a certain tensioning force, so that the reserved edge 3021 is kept in an unfolded state, and the welding effect is improved.

As shown in fig. 11, in some preferred structures, the inclination of the inclined surface of the guide block 32 is made smaller than the inclination of the inclined surface 331 of the front end of the partition strip 33, so that the inclined surface and the guide slit 361 defined by the inclined surface 331 form a structure with a narrow front and a wide rear, and thus, if the reserved edge 3021 has a fold before entering the guide slit 361, the guide slit 361 has a flattening effect on the reserved edge 3021.

As shown in fig. 4 and 11, in some preferred structures, the rear end of the partition strip 33 extends between the two laminating rollers 10 for keeping the two banks 3021 separated at the time of lamination to prevent the banks 3021 from being brought into contact possibly due to thermal deformation, and is advantageous in preventing the banks 3021 from being thermally deformed.

As shown in fig. 11, in some preferred constructions, the elastic pre-pressing member 35 is formed by bending a plate-like body; the two elastic arms 351 of the elastic pre-pressing member 35 are bent in a state of being inclined forward, so that an included angle, in which the apex angle protrudes forward, is defined between the two opposite elastic arms 351. In this way, if the reserved edge 3021 with poor flattening effect passes through the pre-pressing head 352, the elastic arm 351 can increase the distance between the two pre-pressing heads 352 through adaptive deformation, so as to avoid the reserved edge 3021 from blocking when passing through the pre-pressing head 352.

As shown in fig. 9, 10, and 12, in some preferred constructions, both guide blocks 32 have stop walls 324, the stop walls 324 of both guide blocks 32 opposing and defining stop guide slots 363, and the sides of the web body 301 pass through the stop guide slots 363. The limit guide slot 363 is used for limiting the movement of the coiled material body 301 in the width direction on one hand, and limiting the shake of the coiled material body 301 in the thickness direction on the other hand, under the guide of the limit guide slot 363, the coiled material body 301 is conveyed in a relatively stable direction, so that the reserved edge 3021 is prevented from being laterally separated from the guide slot 361 due to the movement and shake of the coiled material body 301.

As shown in fig. 6 and 7 in combination with fig. 5, in a preferred embodiment of the present invention, air cooling means are additionally provided inside both sides of the laminating roller 10 in the axial direction, specifically, the laminating roller 10 includes a main body section 11 and end sections 12 located on both sides of the main body section 11; the end section 12 is internally provided with a containing cavity, and an air cooling device is arranged in the containing cavity; the air cooling device comprises: an air duct, an air inlet pipe 95 and an air outlet pipe 96; the air duct is arranged in the accommodating cavity and comprises an inner cylinder 92 and an outer cylinder 91, an annular airflow cavity 93 is defined between the inner cylinder 92 and the outer cylinder 91, and circumferentially arranged radiating fins 94 are arranged in the airflow cavity 93; the air inlet pipe 95 extends into the accommodating cavity from the end shaft 13 of the laminating roller 10 and is communicated with the outer end of the airflow cavity 93; the air outlet pipe 96 extends into the accommodating cavity from the outer end of the air inlet pipe 95 and is communicated with the inner end of the air flow cavity 93; the inner end of the air duct is rotatably assembled with the film covered roller 10 through a bearing, and the air inlet pipe 95 is rotatably assembled with the end shaft 13 through a bearing, so that when the film covered roller 10 rotates, the air cooling device 90 can be kept in a static state so as to be connected with a cold air flow supply system; the air inlet pipe 95 extends out of the end shaft 13, and the outer end of the air outlet pipe 96 is longer than the outer end of the air inlet pipe 95; an air inlet hole 951 is formed in the pipe wall of the outer end of the air inlet pipe 95, and an air outlet hole 961 is formed in the outer end of the air outlet pipe 96; the air inlet pipe 95 is externally sealed with an air inlet cover (not shown) connected to an air flow supply line (not shown) through a joint, and the air outlet pipe 96 is externally sealed with an air outlet cover (not shown) connected to an air outlet line (not shown) through a joint. In this way, the air inlet pipe 95 provides cold air flow into the air cylinder for cooling the end section 12 of the laminating roller 10, so as to reduce the temperature of the side edge of the coiled material body 301 and the side edge of the isolating film 302, and avoid the thermal deformation of the reserved edge 3021 of the isolating film 302 to influence the flatness of the reserved edge 3021 as much as possible, thereby being beneficial to the subsequent welding of the reserved edge 3021.

As shown in fig. 5, in some preferred constructions, the outer peripheral surface of the main body section 11 of the laminating roller 10 is covered with microprotrusions 14. In the process of pressing the separator 302 against the roll body 301 by the laminating roller 10, the microprotrusions 14 allow the separator 302 to intrude into the surface of the roll body 301, thereby improving the adhesion effect of the separator 302 to the roll body 301.

The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention, the scope of which is defined by the claims. Various modifications and equivalent arrangements of this invention will occur to those skilled in the art, and are intended to be within the spirit and scope of the invention.

Claims (10)

1. A web laminating apparatus, comprising:

The rack comprises two grillages which are vertically arranged at intervals in parallel;

the laminating rollers comprise two laminating rollers, and the two laminating rollers are transversely arranged between the two plate frames; the two laminating rollers are arranged in parallel up and down, a reserved gap is defined between the two laminating rollers, and a coiled material body formed by dipping and cooling horizontally passes through the reserved gap;

The film release rollers are wound with isolating films, are transversely arranged between the two plate frames, are respectively positioned above and below the coiled material body at the upstream of the film coating rollers, and are respectively correspondingly passed between the two surfaces of the coiled material body and the film coating rollers, and when the coiled material body and the isolating films pass through the reserved gaps, the film coating rollers rotate and are pressed against the isolating films; wherein: the width of the isolating film is larger than that of the coiled material body, so that after passing through the reserved gap, the side edge of the isolating film protrudes out of the side edge of the coiled material body to serve as a reserved edge;

a sealing device comprising two sealing devices, wherein the two sealing devices are respectively positioned at two sides of the coiled material body at the downstream of the laminating roller and fixed at the inner side of the plate frame, and the sealing device is used for enabling the reserved edges of the two isolating films to be mutually contacted in the thickness direction when the coiled material body after being laminated passes through the sealing device;

And a welding device provided in the sealing device or downstream of the sealing device, the welding device being configured to periodically weld the two predetermined sides that are in contact with each other.

2. The web laminating device according to claim 1, wherein the sealing device includes:

A board seat vertically arranged;

The guide blocks comprise two guide blocks, the two guide blocks are fixed on the inner side wall of the plate seat, and the two guide blocks are symmetrically arranged up and down; each guide block has intersecting horizontal and inclined walls; the horizontal walls of the two guide blocks are opposite and define a conveying gap, and the inclined walls of the two guide blocks are opposite;

The front end of the separation strip extends into a space between the inclined walls of the two guide blocks, so that the two inclined surfaces of the front end of the separation strip and the inclined walls of the two guide blocks respectively define two guide gaps converging towards the conveying gap, the reserved edges of the two separation films respectively pass through the two guide gaps, and the two reserved edges are mutually close to each other under the guidance of the two guide gaps and then pass through the conveying gap;

the elastic pre-pressing parts comprise two elastic arms, and the head parts of the elastic arms are provided with pre-pressing heads; the two elastic pre-pressing parts are symmetrically arranged at the two opposite horizontal walls, pre-pressing heads of the two elastic arms of the two elastic pre-pressing parts are opposite to form two groups of pre-pressing heads which are arranged at intervals, and the two reserved edges sequentially pass through the two groups of pre-pressing heads;

The welding device is vertically arranged in the guide block above, and the end head of the welding device extends out of the horizontal wall of the guide block and faces the reserved edge between the two groups of prepressing heads so as to be used for welding the reserved edge.

3. The roll film laminating apparatus according to claim 2, wherein said elastic pre-pressing member is formed by bending a plate-like body; the two elastic arms of the elastic pre-pressing part are bent to be in a state of inclining forwards, so that an included angle with the vertex angle protruding forwards is formed between the two opposite elastic arms; the pre-pressing head is formed with an arc-shaped surface by bending.

4. The web laminating device of claim 2, wherein both of the guide blocks have a stop wall, the stop walls of both of the guide blocks are opposed and define a stop guide slot, and the side edges of the web body pass through the stop guide slot.

5. The web laminating device of claim 2, wherein the trailing end of the separator strip extends between two of the laminating rollers.

6. A web laminating apparatus according to claim 2, wherein two film edge driving rollers disposed up and down are provided on both sides of the web downstream of the sealing apparatus, and the two film edge driving rollers roll the reserve edge and rotate in opposite directions.

7. The web laminating device of claim 1, wherein the laminating roller includes a main body section and end sections on either side of the main body section; an accommodating cavity is arranged in the end section, and an air cooling device is arranged in the accommodating cavity;

The air cooling device comprises:

The air duct is arranged in the accommodating cavity and comprises an inner cylinder and an outer cylinder, an annular airflow cavity is defined between the inner cylinder and the outer cylinder, and circumferentially arranged radiating fins are arranged in the airflow cavity;

The air inlet pipe extends into the accommodating cavity from the end shaft of the laminating roller and is communicated with the outer end of the airflow cavity;

the air outlet pipe extends into the accommodating cavity from the outer end of the air inlet pipe and is communicated with the inner end of the air flow cavity;

The inner end of the air duct and the film covering roller form rotatable assembly through a bearing, and the air inlet pipe and the end shaft form rotatable assembly through a bearing;

The outer end of the air outlet pipe is longer than the outer end of the air inlet pipe; an air inlet hole is formed in the pipe wall of the outer end of the air inlet pipe, and an air outlet hole is formed in the pipe wall of the outer end of the air outlet pipe.

8. The web laminating device of claim 7, wherein the outer peripheral surface of the main body section of the laminating roller is provided with micro-protrusions.

9. A web production line comprising: a base release roll, an asphalt impregnating apparatus, a winding apparatus, and a roll laminating apparatus according to any one of claims 1 to 8.

10. The coil production line of claim 9, wherein the asphalt impregnation apparatus comprises at least a first asphalt impregnation tank, a second asphalt impregnation tank; a first cooling device is arranged between the first asphalt dipping tank and the second asphalt dipping tank, and a second cooling device is arranged between the second asphalt dipping tank and the coiled material film covering device;

The base impregnated by the first asphalt dipping tank is cooled by the first cooling equipment and then enters the second asphalt dipping tank, and the base impregnated by the second asphalt dipping tank is cooled by the second cooling equipment to form the coiled material body.