CN114368143A

CN114368143A - Cold laminating machine of membrane is cut to high accuracy

Info

Publication number: CN114368143A
Application number: CN202111664855.0A
Authority: CN
Inventors: 曾志涛; 胡可柱; 陈志方
Original assignee: Foshan Gaoming Foundation Cold Rolled Steel Sheets Industry Co ltd
Current assignee: Foshan Gaoming Foundation Cold Rolled Steel Sheets Industry Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-04-19
Anticipated expiration: 2041-12-30
Also published as: CN114368143B

Abstract

The invention discloses a cold film laminating machine for cutting films with high precision, which comprises a frame; a conveying device having a conveying surface thereon; the film covering device is arranged on the rack and provided with a film covering gap, and the conveying surface penetrates through the film covering gap; the cutting structure is located at the conveying downstream of the conveying face relative to the film covering device and comprises an installation vehicle, the installation vehicle slides and is arranged on a rack, the conveying direction of the conveying face perpendicular to the two installation vehicles is horizontally arranged at intervals, the installation vehicle can slide along the track of the conveying direction perpendicular to the conveying face, film supporting blocks are synchronously arranged on the installation vehicle, the two film supporting blocks surround the two sides of the conveying face, the top face of each film supporting block is a cutting face, the cutting face is higher than the conveying face, cutting knives are arranged on the film supporting blocks and are located above the cutting face, cutting edges of the cutting knives extend downwards towards the cutting face, films exceeding the strip steel part can directly stretch into the cutting face, the film supporting blocks bear the films of the part, and cutting of the cutting knives is facilitated.

Description

Cold laminating machine of membrane is cut to high accuracy

Technical Field

The invention relates to the field of cold laminating machines for cutting films with high precision, in particular to a cold laminating machine for cutting films with high precision.

Background

The tectorial membrane belted steel is a metal sheet who uses extensively, at present the tectorial membrane mode on belted steel surface divide into cold and cover with hot, traditional cold laminating machine can cut the film through cutting out the structure earlier before the tectorial membrane, will cut the film that the good film covers on belted steel, but, at first, need carry a distance again to contact belted steel because the film is cut out after good, the film probably produces the skew, this has led to traditional cold laminating machine's tectorial membrane precision relatively poor, belted steel need cut after the tectorial membrane again, perhaps need tectorial membrane again, reduction in production efficiency.

Disclosure of Invention

The invention aims to provide a cold film laminating machine for cutting films with high precision, which solves one or more technical problems in the prior art and at least provides a beneficial selection or creation condition.

The solution of the invention for solving the technical problem is as follows:

a cold laminating machine for cutting films with high precision comprises: a frame; a conveying device having a conveying surface thereon; the film laminating device is arranged on the rack and provided with a film laminating gap, and the conveying surface penetrates through the film laminating gap; tailor the structure, its for the tectorial membrane device is located carry the face carry low reaches, tailor the structure including the installation car, the installation car slides and sets up in the frame, two the installation car perpendicular to carry the direction of delivery horizontal ground interval of face to set up, the perpendicular to can be followed to the installation car the direction of delivery's orbit slides, be equipped with the support membrane piece on the installation car in step, two the support membrane piece encloses the both sides of carrying the face, the top surface that holds in the palm the membrane piece is the face of cutting, the face of cutting is higher than carry the face, be equipped with on the support membrane piece and cut the sword, it is located to cut the sword the top of face, the cutting edge that cuts the sword is faced downwards the face of cutting direction extends.

The technical scheme at least has the following beneficial effects: the band steel is placed on the conveying surface and is conveyed along the conveying direction of the conveying surface continuously along with the conveying surface, the film with the width larger than that of the band steel is discharged continuously towards the direction of the film coating device, after the band steel and the film pass through the film coating gap simultaneously, the film is coated and pressed on the top surface of the band steel, a worker adjusts the positions of the two installation carts according to the width of the band steel, so that the two installation carts are positioned at the two sides of the conveying surface and are close to the side surface of the band steel, after the film coating process, the height distance between the cutting surface and the conveying surface is consistent with the thickness of the band steel, the film which exceeds the band steel part can be ensured to directly extend into the cutting surface, the film supporting block supports the film of the part, the cutting of the cutting knife is convenient, because the band steel has a certain thickness, in the film cutting process, the film is easy to bend around the side of the band steel to cause the phenomenon of missed cutting, and the film is supported and lifted to the same horizontal plane with the top surface of the band steel through the film supporting block, the cutting error of the film caused by the thickness of the strip steel is reduced, the cutting precision is improved, the production quality is ensured, and the production efficiency is improved.

As a further improvement of the technical scheme, the two mounting vehicles can approach or depart from each other at the same time. When the staff adjusted the installation vehicle, two installation cars can be close to each other or keep away from each other, adjust convenient and fast, guarantee simultaneously that two installation cars can set up in the both sides of belted steel symmetrically all the time, improve and tailor the precision to adapt to the belted steel of different width, improve the suitability.

As a further improvement of the above technical scheme, the conveying device comprises a carrier roller, the carrier roller is rotatably connected to the mounting vehicle, the top side of the carrier roller is tangent to the conveying surface, the film supporting block is sleeved on the carrier roller, and the carrier roller can rotate relative to the film supporting block. The film supporting block is arranged on the installation vehicle, the carrier roller also penetrates the film supporting block and is rotatably connected to the installation vehicle, the coated strip steel is conveyed to the rolling carrier roller, and the carrier roller can move along with the movement of the installation vehicle, so that the carrier roller always supports the steel plate part needing to be cut, and the stability of the cutting process is improved.

As another improvement of the above technical scheme, a first spring is connected between the side wall of the film supporting block far away from the conveying surface and the mounting vehicle, the film supporting block is connected to the rack in a sliding manner, and a plurality of balls are embedded in the side wall of the film supporting block close to the conveying surface. Because the width of each section of the strip steel extending along the length direction of the strip steel has a certain error, after the position of the installation vehicle is adjusted, even if the width of a certain section of the strip steel is larger, the film supporting block can extrude the first spring towards the direction far away from the conveying surface, the side wall of the film supporting block close to the conveying surface is enabled to be always abutted against the strip steel through the balls, friction is reduced, the film cutting knife is arranged on the film supporting block and synchronously moves with the film supporting block, the width of a cut film is enabled to be consistent with the width of the strip steel during conveying, the film cutting precision is improved, the position of the installation vehicle does not need to be adjusted constantly, and cost is reduced.

As another improvement of the above technical solution, the cutting structure includes a first screw rod, the first screw rod is disposed on the frame in a direction perpendicular to the conveying direction of the conveying surface, the first screw rod has two screw thread sections with opposite directions, and the two screw thread sections are respectively connected to the two mounting carts in a threaded manner. The middle position of first screw rod corresponds the middle position of transport face, and when first screw rod rotated, two installation cars can be close to each other or keep away from relatively to the width of adaptation belted steel, convenient regulation, raise the efficiency.

As another improvement of the above technical solution, the cutting knife is rotatably connected to the film supporting block, the cutting knife extends obliquely downward toward the conveying direction of the conveying surface, and a second spring is connected between the cutting knife body and the film supporting block and is in a stretching state, so that the cutting knife has a tendency of moving toward the direction opposite to the conveying direction of the conveying surface. Cut the sword and extend downwards along the direction of delivery of transport face to one side, cut the sword simultaneously and rotate to be connected on holding in the palm the membrane piece and have the trend towards the direction of delivery of transport face reverse movement, improve and cut the dynamics and cut the effect, cut the sword simultaneously and also can carry out the automatic adjustment of angle according to the thickness of film, reduce and interfere.

As another improvement of the above technical solution, the present invention further includes a roll unwinding device, wherein the roll unwinding device includes a roll base, a second screw, and a roll unwinding roller, the roll base is slidably connected to the frame, the roll unwinding roller is rotatably disposed on the roll base, the second screw and the roll unwinding roller extend in a direction parallel to each other, and the second screw is in threaded connection with the roll base. The extending directions of the second screw and the unwinding roller are parallel to each other, the second screw is rotated, the winding drum seat can slide back and forth along the rack, and the unwinding roller and the winding drum seat synchronously move, so that a film wound on the unwinding roller can be adjusted according to the input position of strip steel, the automatic centering of the film is ensured, and the film coating precision is improved.

As a further improvement of the above technical solution, the film laminating machine further comprises a deviation correcting device, the deviation correcting device is arranged in the film laminating machine in sequence, the direction from the unwinding device to the film laminating gap along the deviation correcting device is the film unwinding direction, the deviation correcting device comprises a deviation correcting roller and an adjusting seat, the adjusting seat can slide along the rack and is positioned, one end of the deviation correcting roller is rotatably connected to the rack, and the other end of the deviation correcting roller is rotatably connected to the adjusting seat. The film is because installation error reason etc. probably produce skew and slope along going out the membrane direction transportation process, adjusts the position of seat in the frame through the adjustment, drives the roll slope of rectifying for the film around on the roll of rectifying can finely tune the transport angle of self, improves the tectorial membrane precision.

As another kind of improvement of above-mentioned technical scheme, the tectorial membrane device includes the press mold cylinder, goes up roller and lower roll, it slides and sets up to go up the roller in the frame, go up the bottom side of roller with form between the lower roll top side the tectorial membrane clearance, the piston rod of press mold cylinder is connected go up the roller and can drive go up the roller and be close to or keep away from the lower roll. Belted steel and film are sent into the tectorial membrane clearance to the film is located the belted steel top, goes up the roller through the drive of press mold cylinder and is close to the lower roll downwards, and the tectorial membrane clearance reduces, makes the film cover on the belted steel surface, realizes the tectorial membrane, finishes the tectorial membrane after, the roller is mentioned in the drive of press mold cylinder, conveniently places or the work piece of taking.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures are only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from them without inventive effort.

FIG. 1 is a front view of a high-precision film cutting cold laminating machine provided by an embodiment of the invention;

FIG. 2 is a side view of a cutting structure provided in accordance with an embodiment of the present invention;

fig. 3 is a partially enlarged view of a region a in fig. 2.

In the drawings: 101-strip steel, 102-film, 110-frame, 121-unwinding roller, 122-second screw, 123-winding drum seat, 131-deviation correcting roller, 132-adjusting seat, 141-film pressing cylinder, 142-upper roller, 143-lower roller, 151-mounting vehicle, 152-film supporting block, 153-cutting knife, 154-second spring, 155-ball, 156-carrier roller, 160-first screw, 210-conveying surface, 310-cutting surface and 320-first spring.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention. In addition, all the connection relations mentioned herein do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation. The technical characteristics of the invention can be combined interactively on the premise of not conflicting with each other.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does 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.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1, 2 and 3, the high-precision film cutting cold film laminator includes a frame 110; a conveying device having a conveying surface 210 thereon; a film covering device provided on the frame 110, the film covering device having a film covering gap through which the conveying surface 210 passes; the cutting structure is located at the conveying downstream of the conveying surface 210 relative to the film covering device and comprises two mounting vehicles 151, the mounting vehicles 151 are arranged on the rack 110 in a sliding mode, the two mounting vehicles 151 are arranged on the conveying direction perpendicular to the conveying surface 210 at intervals horizontally, the mounting vehicles 151 can slide along the track perpendicular to the conveying direction of the conveying surface 210, film supporting blocks 152 are synchronously arranged on the mounting vehicles 151, the two film supporting blocks 152 surround the two sides of the conveying surface 210, the top surface of each film supporting block 152 is a cutting surface 310, the cutting surface 310 is higher than the conveying surface 210, cutting knives 153 are arranged on the film supporting blocks 152, the cutting knives 153 are located above the cutting surfaces 310, and the cutting edges of the cutting knives 153 extend downwards towards the direction of the cutting surfaces 310. Specifically, the strip steel 101 is placed on the conveying surface 210 and is continuously conveyed along the conveying direction of the conveying surface 210 along with the conveying surface 210, the film 102 with the width larger than that of the strip steel 101 is continuously discharged towards the laminating device, after the strip steel 101 and the film 102 simultaneously pass through the laminating gap, the film 102 is laminated on the top surface of the strip steel 101, a worker adjusts the positions of the two mounting vehicles 151 according to the width of the strip steel 101, so that the two mounting vehicles 151 are positioned at two sides of the conveying surface 210 and are close to the side surface of the strip steel 101, after the laminating process, the height distance between the cutting surface 310 and the conveying surface 210 is consistent with the thickness of the strip steel 101, the film 102 exceeding the strip steel 101 can be ensured to directly extend into the cutting surface 310, the film supporting block 152 supports the film 102 at the part, the cutting by the cutting knife 153 is convenient, because the strip steel 101 has a certain thickness, in the cutting process of the film 102, the pressing of the cutting knife 153 easily bends the side of the film 102 around the strip steel 101, the phenomenon of missed cutting is caused, the film 102 is supported by the film supporting block 152 and lifted to the same horizontal plane with the top surface of the strip steel 101, the error caused by cutting of the film 102 due to the thickness of the strip steel 101 is reduced, the cutting precision is improved, the production quality is guaranteed, and therefore the production efficiency is improved. It should be noted that, during the cutting process, the mounting cart 151 needs to be adjusted to the position where the strip 101 is attached, and the cutting edge of the film cutting knife extends to the side of the cutting surface 310 close to the conveying surface 210, so as to improve the cutting accuracy. The mounting vehicle 151 can be slidably connected to the frame 110 through a slide rail, a slide groove, and the like, so that the moving position of the mounting vehicle 151 is limited, and the adjustment precision is improved.

In addition, in order to conveniently and quickly adjust the position of the mounting cart 151, in this embodiment, the cutting structure includes a first screw 160, the first screw 160 is horizontally disposed on the frame 110 perpendicular to the conveying direction of the conveying surface 210, the first screw 160 has two screw thread sections with opposite directions, the two screw thread sections are respectively in threaded connection with the two mounting carts 151, and when the first screw 160 rotates, the two mounting carts 151 can be simultaneously close to or far away from each other. The middle position of first screw rod 160 corresponds the middle position of transport face 210, and when first screw rod 160 rotated, two installation cars 151 can be close to each other or keep away from relatively to adapt to belted steel 101's width, convenient the regulation improves efficiency, guarantees that two installation cars 151 can set up the both sides at belted steel 101 symmetrically all the time, improves and tailors the precision. In fact, the positions of the two mounting carts 151 can be adjusted by cylinders or lead screw motors, and the like, so that the flexibility is high. In practice, the first screw 160 may be rotationally driven by a motor, or manually turned by a worker, or the like. The mounting vehicle 151 may be screwed to the first screw 160 by a structure such as a sleeve.

Moreover, in order to further improve the cutting precision and enhance the stability of the cutting process, in some embodiments, the conveying device includes a supporting roller 156, the supporting roller 156 is rotatably connected to the mounting cart 151, the top side of the supporting roller 156 is tangent to the conveying surface 210, the film supporting block 152 is sleeved on the supporting roller 156, the supporting roller 156 is rotatable relative to the film supporting block 152, a first spring 320 is connected between the side wall of the film supporting block 152 far away from the conveying surface 210 and the mounting cart 151, the film supporting block 152 is slidably connected to the frame 110, and a plurality of balls 155 are embedded in the side wall of the film supporting block 152 near the conveying surface 210. It should be noted that the inner side wall of the film supporting block 152 and the outer side wall of the supporting roller 156 can be abutted by the ball 155, so that the supporting roller 156 can rotate relative to the film supporting block 152, and the film supporting block 152 can slide along the supporting roller 156 during the compression or rebound process of the first spring 320, so as to improve the moving stability of the film supporting block 152. In addition, the first spring 320 provides a buffer space when the film supporting block 152 contacts the strip steel 101, reduces the damage of the film supporting block 152 caused by interference collision, enables the film cutting knife to be aligned with the redundant film 102, improves the cutting precision, does not need to adjust the position of the mounting trolley 151 constantly, and reduces the cost. In addition, a plurality of balls 155 are embedded in the side wall of the film supporting block 152 close to the conveying surface 210, so that the side wall of the film supporting block 152 close to the conveying surface 210 is always abutted against the strip steel 101 through the rolling balls 155, friction is reduced, and the service life of the film supporting block 152 is prolonged.

In addition, in some embodiments, the cutting blade 153 is rotatably connected to the film supporting block 152, the cutting blade 153 extends obliquely downward toward the conveying direction of the conveying surface 210, a second spring 154 is connected between the blade of the cutting blade 153 and the film supporting block 152, and the second spring 154 is in a tension state, so that the cutting blade 153 has a tendency to move toward the direction opposite to the conveying direction of the conveying surface 210. The cutting knife 153 extends obliquely downwards along the conveying direction of the conveying surface 210, meanwhile, the cutting knife 153 is rotatably connected to the film supporting block 152 and tends to move towards the opposite direction of the conveying surface 210, cutting force and cutting effect are improved, meanwhile, the cutting knife 153 can also automatically adjust the angle according to the thickness of the film 102, and interference of the cutting edge is reduced.

In fact, in some examples, the present invention further includes a roll unwinding device and a deviation rectifying device, the direction from the roll unwinding device to the film covering gap is the film unwinding direction, the roll unwinding device includes a roll base 123, a second screw 122, and a roll unwinding roller 121, the roll base 123 is slidably connected to the frame 110, the roll unwinding roller 121 is rotatably disposed on the roll base 123, the extending directions of the second screw 122 and the roll unwinding roller 121 are parallel to each other, the second screw 122 is threadedly connected to the roll base 123, the deviation rectifying device includes a deviation rectifying roller 131 and an adjusting base 132, the adjusting base 132 is slidably and fixedly located along the frame 110, one end of the deviation rectifying roller 131 is rotatably connected to the frame 110, and the other end of the deviation rectifying roller 131 is rotatably connected to the adjusting base 132. The film 102 is wound on the unwinding roller 121, the extending directions of the second screw 122 and the unwinding roller 121 are parallel to each other, the second screw 122 is rotated, the winding drum seat 123 can slide back and forth along the rack 110, and the unwinding roller 121 and the winding drum seat 123 move synchronously, so that the film 102 can be adjusted according to the input position of the strip steel 101, the automatic centering of the film 102 is ensured, and the film coating precision is improved. In addition, deviation and inclination may occur due to installation error during the process of conveying the film 102 along the film discharging direction, and in order to alleviate the deviation and inclination of the film 102, the position of the adjusting seat 132 on the frame 110 may be adjusted to drive the deviation rectifying roller 131 to incline, so that the conveying angle of the film 102 wound on the deviation rectifying roller 131 can be finely adjusted, and the film coating precision is improved. It is understood that the unwinding roller 121, the first screw 160, the second screw 122 and the carrier roller 156 are all disposed in parallel to each other to realize film coating. In practice, the sliding of the adjusting seat 132 can be controlled by a driving element such as a motor screw or an air cylinder.

In addition, in some examples, the lamination device includes a lamination cylinder 141, an upper roller 142 and a lower roller 143, the upper roller 142 is slidably disposed on the frame 110, a lamination gap is formed between a bottom side of the upper roller 142 and a top side of the lower roller 143, and a piston rod of the lamination cylinder 141 is connected to the upper roller 142 and can drive the upper roller 142 to approach or move away from the lower roller 143. Film pressing cylinder 141 and frame 110 are relatively fixed, and belted steel 101 and film 102 send into the tectorial membrane clearance to film 102 is located belted steel 101 top, drives upper roller 142 through film pressing cylinder 141 and is close to lower roll 143 downwards, and the tectorial membrane clearance reduces for film 102 covers on belted steel 101 surface, realizes the tectorial membrane, and after finishing the tectorial membrane, film pressing cylinder 141 drives upper roller 142 and lifts, conveniently places or takes the work piece.

While the preferred embodiments of the present invention have been described in detail, it should be understood that the invention is not limited to those precise embodiments, and that various changes and modifications may be effected therein by one skilled in the art without departing from the scope or spirit of the invention as defined in the appended claims.

Claims

1. The utility model provides a cold laminating machine of membrane is cut to high accuracy which characterized in that: the method comprises the following steps:

a frame (110);

a conveying device having a conveying surface (210) thereon;

a film covering device arranged on the frame (110), wherein the film covering device is provided with a film covering gap, and the conveying surface (210) penetrates through the film covering gap;

a cutting structure located downstream of the transport surface (210) with respect to the film covering device, the cutting structure comprises mounting vehicles (151), the mounting vehicles (151) are arranged on the rack (110) in a sliding mode, the two mounting vehicles (151) are arranged perpendicular to the conveying direction of the conveying surface (210) at intervals horizontally, the mounting carriage (151) is slidable along a trajectory perpendicular to the conveying direction of the conveying surface (210), the mounting vehicle (151) is synchronously provided with film supporting blocks (152), the two film supporting blocks (152) surround the two sides of the conveying surface (210), the top surface of the film supporting block (152) is a cutting surface (310), the cutting surface (310) is higher than the conveying surface (210), the film supporting block (152) is provided with a cutting knife (153), the cutting knife (153) is positioned above the cutting plane (310), the cutting edge of the cutting knife (153) extends downwards towards the cutting surface (310).

2. The cold laminating machine for high-precision film cutting according to claim 1, is characterized in that: the two mounting vehicles (151) can simultaneously approach or depart from each other.

3. A high-precision film cutting cold laminating machine according to claim 1 or 2, characterized in that: the conveying device comprises a supporting roller (156), the supporting roller (156) is rotatably connected to the mounting vehicle (151), the top side of the supporting roller (156) is tangent to the conveying surface (210), the film supporting block (152) is sleeved on the supporting roller (156), and the supporting roller (156) and the film supporting block (152) can rotate relatively.

4. The cold laminating machine for high-precision film cutting according to claim 2, is characterized in that: hold in the palm membrane piece (152) and keep away from the lateral wall of transport face (210) with be connected with first spring (320) between installation car (151), hold in the palm membrane piece (152) sliding connection in on frame (110), hold in the palm membrane piece (152) and be close to the lateral wall of transport face (210) is inlayed a plurality of balls (155).

5. The cold laminating machine for high-precision film cutting according to claim 2, is characterized in that: the cutting structure comprises a first screw (160), the first screw (160) is perpendicular to the conveying direction of the conveying surface (210) and is horizontally arranged on a rack (110), two thread sections with opposite directions are arranged on the first screw (160), and the two thread sections are respectively in threaded connection with the two mounting vehicles (151).

6. The cold laminating machine for high-precision film cutting according to claim 1, is characterized in that: cut sword (153) and rotate to be connected on holding in the palm membrane piece (152), cut sword (153) court the direction of delivery of transport face (210) extends downwards to one side, cut the blade of sword (153) with hold in the palm and be connected with second spring (154) between membrane piece (152), second spring (154) are tensile state, make cut sword (153) have court the trend of the direction of delivery's the opposite direction removal of transport face (210).

7. The cold laminating machine for high-precision film cutting according to claim 1, is characterized in that: still include the unwinding device, the unwinding device includes a barrel seat (123), second screw rod (122), unwinding roller (121), barrel seat (123) sliding connection be in on frame (110), unwinding roller (121) rotate and set up on barrel seat (123), second screw rod (122) with the extending direction who unwinds roller (121) is parallel to each other, second screw rod (122) threaded connection in on barrel seat (123).

8. The cold laminating machine for high-precision film cutting according to claim 7, is characterized in that: still include deviation correcting device, in order to follow in proper order the unwinding device deviation correcting device extremely the direction in tectorial membrane clearance is for going out the membrane direction, deviation correcting device is including rectifying roller (131) and adjusting seat (132), it can follow to adjust seat (132) frame (110) slides and fixes a position, the one end rotation of rectifying roller (131) is connected in on frame (110), the other end rotation of rectifying roller (131) is connected in adjust on seat (132).

9. The cold laminating machine for high-precision film cutting according to claim 1, is characterized in that: tectorial membrane device includes press mold cylinder (141), goes up roller (142) and lower roll (143), it slides and sets up to go up roller (142) in frame (110), go up the bottom side of roller (142) with form between lower roll (143) the tectorial membrane clearance, the piston rod of press mold cylinder (141) is connected go up roller (142) and can drive go up roller (142) and be close to or keep away from lower roll (143).