CN211846528U - Coiled material double-sided bonding device and coiled material processing system - Google Patents

Abstract

The utility model provides a coiled material double-sided bonding device and a coiled material processing system, which comprises a substrate, an unreeling mechanism and two groups of bonding mechanisms, wherein the unreeling mechanism is arranged on the substrate and is suitable for placing coiled materials, the two groups of bonding mechanisms are arranged on the substrate, and any one group of bonding mechanisms is provided with a bonding plate; a traveling channel of the coiled material is formed between the two groups of bonding mechanisms; a limiting assembly is arranged on any bonding plate and is suitable for limiting and splicing the tail part of the previous coiled material and the head part of the next coiled material on the bonding plate; one surface of one bonding plate, which is opposite to the bonding plate, at the splicing position of the coiled material is suitable for rubberizing adhesion, and the other surface of the other bonding plate, which is suitable for rubberizing adhesion at the splicing position, is turned over to the other bonding plate. Splice two sets of coiled materials when the roll change to all carry out the rubberizing adhesion in the both sides of concatenation department, the coiled material is connected more firmly, has improved the stability that the coiled material was handled.

Description

Coiled material double-sided bonding device and coiled material processing system

Technical Field

The utility model relates to a coiled material bonding equipment technical field, concretely relates to two-sided bonding device of coiled material and coiled material processing system.

Background

In the production and processing of coiled materials, after a group of coiled materials finish the blowing, need in time to change new coiled materials to splice the continuous production with the afterbody of last a group of coiled materials and the head of next a group of coiled materials, connect the material process not only need save material, accurate high-efficient, should ensure normal product production state as far as possible moreover, avoid influencing product quality because of the material change.

In the current coiled material continuous electroplating process, unwinding mechanism unreels the coiled material and accomplishes the back, fixes the coiled material that is close to the afterbody through locking mechanism, changes another coiled material, splices the afterbody of last coiled material and the head of next coiled material, and the surface rubberizing is connected in concatenation department, carries out continuous production.

The existing structure only adopts the bonding plate on one side, because the coiled material is soft, so the coiled material is put on the face when rubberizing, and the coiled material is laid on the face and is just conveniently connected with the tape after leveling, and is supported by the face of the plate, and the tape is pressed and tightly pasted at the splicing part to complete adhesion. Two sets of coiled materials are spliced end to end (are not stacked together) and are respectively adsorbed on the adhesive plate, only one side surface back to the adhesive plate can be pasted when the adhesive is pasted, if the other side surface is pasted, the spliced part needs to be turned over, and because the two sets of coiled materials are connected into a continuous coiled material after one side of the two sets of coiled materials is pasted, the coiled materials cannot be turned over and are paved on the same adhesive plate to be pasted on the other side surface. The coiled material needs to be wound on the roller from different directions, certain tension is always kept on the coiled material, the coiled material is stretched, stretched and flatly stretched, only one side surface of the coiled material is rubberized, one side surface of the rubberized material is attached to the surface of the roller, the splicing part of the surface of the side surface of the non-rubberized material is easily outwards opened, after the coiled material is wound on the roller in the direction for multiple times, the splicing is insecure, the connection is unstable, even the splicing is separated, and the production efficiency and the product quality of the product are affected.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model discloses the technical problem that will solve lies in current coiled material bonding device and only can carry out a side surface bonding, leads to connecting unstablely between two sets of coiled materials.

Therefore, the utility model provides a two-sided bonding device of coiled material, include

A substrate;

the unwinding mechanism is arranged on the substrate and is suitable for placing a coiled material;

two groups of bonding mechanisms are arranged on the substrate and are provided with bonding plates; a traveling channel of the coiled material is formed between the two groups of bonding mechanisms;

a limiting component is arranged on any one of the bonding plates; the limiting assembly is suitable for limiting and splicing the tail part of the previous coiled material and the head part of the next coiled material on the bonding plate; one surface of the splicing plate, which is positioned at the splicing position of the coiled material and faces away from the splicing plate, is suitable for rubberizing and adhesion, and the other surface of the splicing plate, which is suitable for rubberizing and adhesion to the splicing position, is turned over to the other splicing plate.

The spacing subassembly includes:

the plurality of adsorption holes are formed in the plate surface of the bonding plate facing one side of the coiled material; the adsorption hole is communicated with the suction unit; the adsorption holes are suitable for adsorbing the head or the tail of the coiled material on the adhesive plate.

Spacing subassembly still includes:

the at least two clamps are distributed at two ends of the bonding plate; the jig is adapted to press and fix the web to the adhesive sheet from the width direction of the web.

Further comprising:

a cutting groove extending along the width direction of the coiled material and arranged on the bonding plate; the limiting assemblies are symmetrically arranged on the bonding plate relative to the cutting groove.

The working surfaces of the two bonding plates are coplanar and arranged on the substrate at intervals in the same direction; the unwinding mechanism is arranged on one side of the bonding plate.

Any said bonding mechanism further comprises:

a guide member at least provided at one side of the adhesive sheet; the guide is adapted to guide a path of travel of the web.

The guide pieces are first guide rollers and are symmetrically arranged on two sides of the bonding plate; the roller surface of any first guide roller is tangent to the plane where the plate surface of the bonding plate is located.

The device also comprises a deviation rectifying component; the subassembly of rectifying includes:

the deviation rectifying detector is arranged on the substrate;

and the execution mechanism is electrically connected with the deviation rectifying detector and is suitable for at least driving the unwinding mechanism to move along the width direction of the coiled material for rectifying deviation.

The unwinding mechanisms are arranged in two groups; and the two sets of unwinding mechanisms are respectively in one-to-one correspondence with the two sets of bonding mechanisms.

It is arbitrary unwinding mechanism includes:

the discharging roller and the film collecting roller are positioned on one side of the bonding mechanism and are arranged on the substrate at intervals;

the discharging roller is suitable for placing a coiled material; the film collecting roller is suitable for winding the protective film on the surface of the coiled material.

The utility model relates to a coiled material processing system, including the aforesaid the two-sided bonding device of coiled material. The technical scheme of the utility model, have following advantage:

1. the utility model provides a coiled material double-sided bonding device, which comprises a substrate, an unreeling mechanism and two groups of bonding mechanisms, wherein the unreeling mechanism is arranged on the substrate and is suitable for placing coiled materials; a traveling channel of the coiled material is formed between the two groups of bonding mechanisms; a limiting assembly is arranged on any bonding plate and is suitable for limiting and splicing the tail part of the previous coiled material and the head part of the next coiled material on the bonding plate; one surface of one bonding plate, which is opposite to the bonding plate, at the splicing position of the coiled material is suitable for rubberizing adhesion, and the other surface of the other bonding plate, which is suitable for rubberizing adhesion at the splicing position, is turned over to the other bonding plate. Splice two sets of coiled materials when the roll change to all carry out the rubberizing adhesion in the both sides of concatenation department, the coiled material is connected more firmly, has improved the stability that the coiled material was handled.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a first schematic structural view of the double-sided bonding apparatus for coiled materials of the present invention;

FIG. 2 is a schematic structural view II of the double-sided bonding device for coiled materials of the present invention;

FIG. 3 is a third schematic structural view of the double-sided bonding apparatus for coiled materials of the present invention;

fig. 4 is a schematic diagram of the coiled material winding of the coiled material double-sided bonding device of the present invention.

Description of reference numerals:

100-a frame; 1-a substrate; 10-a base plate; 11-a floating plate; 110-a lifting motor; 111-a lifting column; 12-a cover plate;

2, an unwinding mechanism; 21-a discharge roller; 22-a film collecting roller;

3-a bonding mechanism; 31-a bonding plate; 32-a stop assembly; 321-adsorption holes; 322-a clamp; 33-cutting the groove; 34-a guide; 341-guide rollers; 342-a deviation-rectifying detector;

41-moving roller; 42-a fixed roller; 43-a slide assembly; 431-sliding rail; 432-a slider; 44-a connecting plate; 45-displacement sensor; 46-a sensing plate; 47-photoelectric switch; 48-a limiting block;

51-torque motor; 511-a conveyor belt; 52-a counterweight block; 521-a connecting band; 53-magnetic particle clutch;

6-a locking mechanism; 7-tension detection device.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

The embodiment provides a double-sided bonding device for a coiled material, as shown in fig. 1, comprising a substrate 1, an unwinding mechanism 2 and two groups of bonding mechanisms 3. Wherein, the base plate 1 is installed on the frame 100, as shown in fig. 3, the base plate 1 includes a bottom plate 10, a floating plate 11 and a cover plate 12, the cover plate 12 is installed on the top of the frame 100 to form a working platform, the bottom plate 10 is installed under the cover plate 12 and spaced apart from the cover plate 12, the floating plate 11 is installed between the cover plate 12 and the bottom plate 10, the floating plate 11 is connected with the bottom plate 10 through a lifting column 111, in this embodiment, six lifting columns 111 are installed and equally distributed on the floating plate 11, the lifting column 111 adopts a combination of a threaded column and a threaded cylinder, the threaded cylinder is fixedly installed under the floating plate 11, the threaded column is in threaded fit with the threaded cylinder and is suitable for passing through the floating plate 11, the threaded column is rotatably arranged on the bottom plate 10 through a connecting rod, one end of all connecting rods under the bottom plate 10 is provided with a driven sprocket, chains (not shown in the figure) are wound on the driven sprocket one by one to, one end of a connecting rod positioned below the bottom plate 10 is further provided with a driving sprocket, the lifting motor is arranged on the rack 100, the driving end of the lifting motor is connected to the driving sprocket through a chain, and the whole floating plate 11 is driven to ascend or descend through the rotation of the lifting motor.

As shown in fig. 1, two sets of bonding mechanisms 3 are mounted in parallel on a base plate 1, and each set of bonding mechanism 3 includes a bonding plate 31, a stopper assembly 32, a cutting groove 33, and a guide 34. The bonding plate 31 is vertically installed on the substrate 1, the transverse section of the bonding plate 31 is T-shaped, and the working surface of the bonding plate 31 is on the vertical part of the T-shaped. The cutting groove 33 extends from top to bottom along the center line of the adhesive sheet 31, in this embodiment, the limiting assembly 32 includes a plurality of absorption holes 321 and at least two clamps 322, the absorption holes 321 are uniformly distributed on the adhesive sheet 31 at both sides of the cutting groove 33, as shown in fig. 1, two rows of absorption holes 321 are respectively formed at both sides of the cutting groove 33, the absorption holes 321 at both sides of the cutting groove 33 are respectively connected with a suction unit (not shown in the figure), the two suction units are installed in the grooves of the T-shaped structure of the adhesive sheet 31 facing away from the working surface, and the absorption holes 321 at both sides can independently complete the absorption action. In this embodiment, the number of the clamps 322 is four, two clamps are respectively disposed at the top end and the bottom end of the bonding plate 31, and the clamps 322 at the two ends are symmetrically distributed at the two sides of the cutting groove 33. In this embodiment, the guide member 34 is a guide roller, as shown in fig. 1, two guide rollers are provided, and are respectively rotatably installed on two sides of the bonding plate 31, and the plane where the working surface of the bonding plate 31 is located is tangential to the guide rollers on the two sides. The deviation rectifying assembly comprises a deviation rectifying detector 342 and an executing mechanism, the deviation rectifying detector 342 is arranged between a guide roller close to one side of the unwinding mechanism 2 and the bonding plate 31, the deviation rectifying detector 342 is erected on the upper portion of the bonding plate 31 through a support, a notch of the deviation rectifying detector 342 faces downwards, the coiled material passes through the deviation rectifying detector 342 during conveying, and the height of the coiled material is detected in real time through the deviation rectifying detector 342. In this embodiment, as shown in fig. 1, the working surfaces of the bonding plates 31 in the two sets of bonding mechanisms 3 are coplanar and spaced in the same direction.

In this embodiment, the executing mechanism is composed of a lifting motor 110, a lifting column 111 and a floating plate 11, and as shown in fig. 1, in this embodiment, the unwinding mechanism 2, the bonding plate 31 and the guide roller between the unwinding mechanism 2 and the bonding plate 31 located on the same side are all fixedly mounted on the floating plate 11, a through hole is formed in the corresponding cover plate 12, and the unwinding mechanism 2, the bonding plate 31 and the guide roller between the unwinding mechanism 2 and the bonding plate 31 located on the same side pass through the through hole. The lifting motor 110 receives the deviation correcting signal from the deviation correcting detector 342, so as to adjust the height of the unwinding mechanism 2, the bonding plate 31 and the guide roller, and the height of the coiled material reaches the preset position.

As shown in fig. 1 or fig. 4, the unwinding mechanisms 2 are provided in two sets, and are in one-to-one correspondence with the bonding mechanisms 3, any set of unwinding mechanisms 2 includes an unwinding roller 21 and a winding roller 22, the unwinding roller 21 and the winding roller 22 are fixedly mounted on the floating plate 11 at intervals, the unwinding roller 21 and the winding roller 22 are respectively provided with an unwinding motor and a winding motor, and the winding roller 22 is suitable for winding and recycling the protective film on the surface of the coiled material.

In this embodiment, the working process of the bonding mechanism is as follows:

taking fig. 4 as an example, the two discharging rollers 21 are placed with the coiled material, and the coiled material on the right discharging roller 21 is firstly unreeled.

When the right coiled material unreels and is about to accomplish, open the left anchor clamps 322 of cutting groove 33 that lie in on the right side adhesive sheet 31, support the coiled material and press on adhesive sheet 31 face, then open corresponding suction unit, adsorb the coiled material afterbody in the adhesive sheet 31 left side, cut the coiled material level and smooth along cutting groove 33 through manual mode. Then the head of the left coiled material is pulled out to the right adhesive plate 31, the head of the left coiled material is pressed on the plate surface of the adhesive plate 31 through the clamp 322 on the right adhesive plate 31 and on the right cutting groove 33, then the corresponding suction unit is opened to firmly adsorb the head of the left coiled material, the head of the coiled material is cut and leveled along the cutting groove 33 in a manual mode, the tail parts and the head parts of the two groups of coiled materials are spliced together, and the splicing part is manually pasted with glue for adhesion.

Then close two suction units on the right side bonding plate 31, open anchor clamps 322 simultaneously, overturn the splice to the left bonding plate 31 on, and support the coiled material of head and tail one side adhesion on this bonding plate 31 through the anchor clamps on the left side bonding plate 31, open the suction unit on the left side bonding plate 31 after adjusting the position, adsorb the coiled material firmly, carry out the rubberizing adhesion at the opposite side surface of splice, after the adhesion is accomplished, open left anchor clamps 322 and close suction unit, make the coiled material continue to carry. When the left coiled material is about to be used up, a new coiled material is placed on the right discharging roller 21, and by adopting the operation, two groups of coiled materials are continuously conveyed after being bonded on two sides, and the operation is repeated circularly.

As shown in fig. 2, a buffer area is provided downstream of the double-sided bonding mechanism 3, a plurality of fixed rollers 42 and at least one moving roller 41 are provided in the buffer area, the moving rollers 41 are mounted on a sliding assembly 43, the sliding assembly 43 comprises two sliding rails 431 and a sliding block 432, the sliding rails 431 are provided in two, the extending direction of the two sliding rails 431 is parallel to the plane of the working surface of the bonding plate 31, the sliding rails 431 are fixedly mounted on the cover plate 12, in the embodiment, two moving rollers 41 are provided, two fixed rollers 42 are provided in the buffer area, two fixed rollers 42 are fixedly mounted at one end of the sliding rails 431 at intervals, two moving rollers 41 are fixedly mounted on a connecting plate 44, the connecting plate 44 is fixed on the sliding block 432, the sliding block 432 is adapted to reciprocate along the sliding rails 431, as shown in fig. 4, in the direction perpendicular to the extending direction of the sliding rails 431, the two moving rollers 41 and the two, the coiled material is wound on the moving roller 41 and the fixed roller 42 in an S shape, and the two ends of the sliding rail 431 are respectively provided with a limiting block 48, and the limiting blocks 48 are suitable for blocking the connecting plate 44. The moving roller 41 may be provided with one, three, four, etc., and the fixed rollers 42 in the corresponding buffer areas may be provided with one more than the moving roller 41 to facilitate the web winding.

As shown in fig. 4, long holes parallel to the sliding rails 431 are formed in the middle positions of the two parallel sliding rails 431, the length of each long hole is the same as that of the corresponding sliding rail 431, a sensing plate 46 is arranged on the connecting plate 44 and located in the middle position of the two moving rollers 41, the sensing plate 46 penetrates through the long holes and is located below the cover plate 12, the sensing plate 46 is suitable for sliding in the long holes in a reciprocating manner, the sensing plate 46 comprises a first sensing plate and a second sensing plate, the first sensing plate and the second sensing plate are arranged at a right angle, the first sensing plate is arranged opposite to the displacement sensor 45, the second sensing plate is arranged opposite to the photoelectric switch 47, the displacement sensor 45 is fixedly installed at the bottom of the cover plate 12 and located in the extending direction of the long holes, and is used for detecting the distance of the moving rollers 41 in real time and feeding back signals to a controller (not shown in; two photoelectric switches 47 are arranged, and are respectively and fixedly installed at the bottom of the cover plate 12, positioned at two end parts of the long hole and positioned at the same side of the long hole.

In this embodiment, as shown in fig. 3, a balance assembly is disposed at one end of the slide rail 431 away from the fixing roller 42 in the buffer area, and the balance assembly includes a torque motor 51, a weight 52, a magnetic powder clutch 53 and a flexible transmission member. The torque motor 51 is installed on the frame 100 and located below the bottom plate 10, the driving end of the torque motor 51 is connected to the magnetic powder clutch 53, and the magnetic powder clutch 53 is connected to the connecting plate 44 through a flexible transmission member, in this embodiment, the flexible transmission member is a conveyor belt 511 or a connecting belt 521, and may also be a chain or the like, as required. The cover plate 12 on one side of the limiting block 48, which faces away from the buffer area, is provided with two driving wheels, the two driving wheels are fixed at two ends of a rotating shaft, the two ends of the rotating shaft are rotatably arranged on the cover plate 12, the conveying belt 511 is an annular belt, one end of the conveying belt 511 is sleeved on one driving wheel, and the other end of the conveying belt 511 is sleeved on the magnetic powder clutch 53; the connecting belt 521 is lapped on the other driving wheel, and one end of the connecting belt 521 is fixed on the connecting plate 44, and the other end extends to the lower part of the cover plate 12 and is fixedly connected on the balancing weight 52.

As shown in fig. 4, a plurality of fixed rollers 42 are further provided on the cover plate 12 outside the buffer area, and the web is wound one by one around all the fixed rollers 42 and the moving roller 41. In this embodiment, all the fixed rollers 42 and the guide rollers are fixedly disposed relative to the cover plate 12 and can rotate, all the movable rollers 41 can move relative to the cover plate 12 and can rotate, and all the fixed rollers 42, the guide rollers and the movable rollers 41 are conventional rollers.

As shown in fig. 1, fig. 2 or fig. 4, a locking mechanism 6 is installed between the bonding mechanism 3 and the buffer area, the coiled material passes through the locking mechanism 6, and when the coiled material is locked, a locking cylinder drives a press roller to press and fix the coiled material on a locking surface of the locking mechanism 6 through the press roller. And a tension detection device 7 is also arranged between the locking mechanism 6 and the buffer area, the tension detection device 7 detects the tension value of the surface of the coiled material in real time and feeds the tension value back to the controller so as to regulate and control the surface tension of the coiled material by the torque motor 51, the discharging motor and the like, and the control method is a conventional control method in the field.

In this embodiment, the working process of reel change without shutdown is as follows:

taking fig. 4 as an example, the two discharging rollers 21 on the two sides are respectively provided with a coiled material, the coiled material on the right discharging roller 21 is firstly discharged, and the right film collecting roller 22 is used for collecting the film on the coiled material on the right discharging roller 21.

When the initial unreeling, connecting plate 44 is located the buffer left side with removal roller 41, unreel the in-process, receive the influence of coiled material speed variation, remove roller 41 in the buffer left and right sides reciprocating motion of minim scope, when the coiled material was put soon, torque motor 51 starts, cooperation balancing weight 52 will remove roller 41 pulling to the buffer rightmost side, during the change of lap, start locking mechanism 6, fix the coiled material on locking mechanism 6, and adopt above-mentioned change of lap process to carry out the coiled material change, removal roller 41 in the buffer is moved left side from the right side gradually under the effect of coiled material pulling force and is moved continuously the feed this moment, can set up the buffer of appropriate length according to the time of workman's change of lap, make removal roller 41 remove and just accomplish the change of lap when to left side stopper 48, thereby open locking mechanism 6 and continue to supply new material book, realize not shutting down the change of.

As a first alternative embodiment of embodiment 1, the limiting assembly 32 may only adopt the suction hole 321 and the suction unit, and omit the clamp 322.

As a second alternative embodiment of embodiment 1, the limiting assembly 32 may employ only the clamp 322, omitting the suction hole 321 and the suction unit.

As a third alternative embodiment of the embodiment 1, the working surfaces of the two adhesive sheets 31 may be arranged at any included angle, and further, for convenience of operation, the working surfaces of the two adhesive sheets 31 are arranged at an obtuse angle.

As a fourth alternative embodiment of embodiment 1, only one side unwinding mechanism 2 may be provided, when the unwinding of the first group is completed, suction cutting is performed on one side adhesive sheet 31, then the empty roller is removed, a new roll is put in again, and a new roll head portion is drawn out and sucked on the adhesive sheet 31 to perform cutting alignment and tape application.

Example 2

This embodiment provides a web handling system including the web double-sided bonding apparatus of embodiment 1.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims (11)

1. A double-sided bonding device for a coiled material is characterized by comprising:

a substrate (1);

the unwinding mechanism (2) is arranged on the substrate (1) and is suitable for placing a coiled material;

two groups of bonding mechanisms (3) which are arranged on the substrate (1) and are provided with bonding plates (31); a traveling channel of the coiled material is formed between the two groups of bonding mechanisms (3);

a limiting component (32) is arranged on any one of the bonding plates (31); the limiting assembly (32) is suitable for limiting and splicing the tail part of the previous coiled material and the head part of the next coiled material on the bonding plate (31); one surface of one of the bonding plates (31) which is positioned at the splicing position of the coiled materials and is back to the bonding plate (31) is suitable for rubberizing and adhesion, and the other surface of the other bonding plate (31) which is turned over to be suitable for rubberizing and adhesion at the splicing position is also suitable for rubberizing and adhesion.

2. A web double-sided adhesive bonding apparatus according to claim 1, wherein said stop assembly (32) comprises:

a plurality of adsorption holes (321) formed in the surface of the adhesive sheet (31) on the side facing the roll; the adsorption hole (321) is communicated with a suction unit; the suction holes (321) are adapted to suck the head or tail of the web onto the adhesive sheet (31).

3. A web double-sided adhesive bonding apparatus according to claim 2, wherein said stop assembly (32) further comprises:

at least two clamps (322) distributed at two ends of the bonding plate (31); the jig (322) is adapted to press-fix the web to the adhesive sheet (31) from the width direction of the web.

4. A web double-sided bonding apparatus as defined in claim 1, further comprising:

a cutting groove (33) extending along the width direction of the coiled material and arranged on the bonding plate (31); the limiting assemblies (32) are symmetrically arranged on the bonding plate (31) relative to the cutting groove (33).

5. A web double-sided adhesive bonding apparatus according to claim 1, characterized in that the working faces of the two adhesive sheets (31) are coplanar and spaced apart in the same direction on the base sheet (1); the unwinding mechanism (2) is arranged on one side of the bonding plate (31).

6. A web double-sided adhesive bonding apparatus according to claim 1, wherein any of said adhesive bonding means (3) further comprises:

a guide (34) provided at least on one side of the adhesive sheet (31); the guide (34) is adapted to guide a path of travel of the web.

7. A web double-sided adhesive bonding device according to claim 6, characterized in that the guide (34) is a first guide roller symmetrically arranged on both sides of the adhesive sheet (31); the roller surface of any first guide roller is tangent to the plane where the plate surface of the bonding plate (31) is located.

8. A web double-sided bonding apparatus as recited in claim 1 further comprising a deviation correcting assembly; the subassembly of rectifying includes:

a deviation-correcting detector (342) disposed on the substrate (1);

and the execution mechanism is electrically connected with the deviation rectifying detector (342) and is suitable for at least driving the unwinding mechanism (2) to move along the width direction of the coiled material for rectifying deviation.

9. A coil double-sided bonding device according to any one of claims 1 to 8, characterized in that the unwinding mechanisms (2) are provided in two groups; the two sets of unwinding mechanisms (2) are respectively in one-to-one correspondence with the two sets of bonding mechanisms (3).

10. A web double-sided adhesive bonding apparatus according to claim 9, wherein any of said unwinding mechanisms (2) comprises:

the discharging roller (21) and the film collecting roller (22) are positioned on one side of the bonding mechanism (3) and are arranged on the substrate (1) at intervals;

the discharging roller (21) is suitable for placing a coiled material; the film collecting roller (22) is suitable for winding the protective film on the surface of the coiled material.

11. A web handling system comprising a web double-sided bonding apparatus according to any one of claims 1 to 10.

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