CN211222064U - Automatic laminating machine of metal sheet - Google Patents

Abstract

The utility model discloses an automatic laminating machine of metal sheet relates to tectorial membrane technical field. The technical key points are as follows: the utility model provides an automatic laminating machine of sheet metal, includes frame, film, transfer roller, squeeze roll, blowing roller and tensioning roller, forms the clearance that supplies the sheet metal to pass through between squeeze roll and the transfer roller, still includes guide roll and tectorial membrane piece, and the guide roll is located the frame and is close to input one side, and the tectorial membrane piece is located between guide roll and the squeeze roll. An inverted V-shaped groove is formed in the bottom of the film covering block in parallel to the axial direction of the conveying roller, a film covering strip is hinged to the inverted V-shaped groove, the film covering strip is connected with the film covering block through a torsion spring, and a film is output from the discharging roller and sequentially passes through the tensioning roller and the guide roller to the film covering strip; a film cutter is arranged below the inverted V-shaped groove, and the film covering strip is tightly pressed on the inner side wall surface of the inverted V-shaped groove when the film cutter is clamped in the inverted V-shaped groove. The utility model has the advantages of high automation degree, convenient use and low cost.

Description

Automatic laminating machine of metal sheet

Technical Field

The utility model relates to a tectorial membrane technical field, more specifically say, it relates to an automatic laminating machine of metal sheet.

Background

The metal plate is always scratched due to friction in the transportation process, and the film is pasted on the surface of the metal plate, so that the surface of the metal plate can be protected, and the metal plate is more attractive. The metal plate film covering technology is a processing technology for sticking a film on a metal plate by hot pressing a plastic film and the metal plate at high temperature.

In some small and medium-sized metal processing plants, the metal plate film coating machine is often simpler in structure and mainly comprises an extrusion roller positioned on a conveying belt, a discharging roller positioned on the extrusion roller and a tensioning roller. During film covering, the film is output by the discharging roller, is manually attached to one end of the metal surface through the tensioning roller, slowly pushes the metal plate and compresses the film on the metal surface through the extrusion roller.

The above prior art solutions have the following drawbacks: the film laminating process needs manual work to laminate the film on the surface of the metal plate, so that the film laminating work can be continuously completed, the automation degree is low, and the operation intensity of workers is high.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide an automatic laminating machine of metal sheet, it has the advantage that degree of automation is high.

The above object of the present invention can be achieved by the following technical solutions:

an automatic laminating machine for metal plates comprises a rack, a film, a plurality of conveying rollers arranged in a row in the horizontal direction, an extrusion roller, a discharging roller and a tensioning roller, wherein the extrusion roller, the discharging roller and the tensioning roller are arranged in parallel with the conveying rollers, a gap for metal plates to pass is formed between the extrusion roller and the conveying rollers, the automatic laminating machine also comprises a guide roller and a laminating block, the guide roller is positioned on one side, close to an input end, of the rack, the laminating block is positioned between the guide roller and the extrusion roller, and the bottoms of the guide roller and the laminating block are both higher than the horizontal plane where the bottom of the extrusion; an inverted V-shaped groove is formed in the bottom of the film covering block in parallel to the axial direction of the conveying roller, a film covering strip is hinged to the edge, close to one side of the guide roller, of the inverted V-shaped groove, the film covering strip is connected with the film covering block through a torsion spring, the film is output from the discharging roller and sequentially passes through the tensioning roller and the guide roller to the film covering strip, and when the torsion spring is in a natural state, one end of the film covering strip obliquely and downwards extends into a position between a horizontal plane where the bottom surface of the extrusion roller is located and a horizontal plane where the top surface of the conveying roller is located along the direction from the; the utility model discloses a film laminating machine, including the shape of falling V recess, the shape of falling V recess is provided with the film cutter below, film cutter lower fixedly connected with drive film cutter card in the shape of falling V recess or break away from the first cylinder of the shape of falling V recess, and the tectorial membrane strip is pressed tightly on the interior lateral wall face that the shape of falling V recess is close to the guide roll when film cutter card in the shape of falling V recess.

Through adopting above-mentioned technical scheme, the film is exported to the feed roll, and the film is straightened through the tensioning roller, arranges the horizontal direction in through the guide roll and laminates on the tectorial membrane piece. When the metal plate is not fed, one end of the film is pressed into the position between the horizontal plane of the bottom surface of the extrusion roller and the horizontal plane of the top surface of the conveying roller by the film covering strip under the action of the torsion spring, when the metal plate is fed to the extrusion roller, one end of the metal plate is firstly contacted with the film covering strip, along with the further movement of the metal plate, the torsion spring is extruded, and the film on the film covering strip is pressed on the metal plate under the action force of the torsion spring. In the process of continuously advancing the metal plate, the film coating strip is supported on the top surface of the metal plate through the film by the metal plate, at the moment, the film coating strip can provide a force opposite to the advancing direction of the metal plate on the surface of the metal plate, so that the film is pressed on the metal plate in advance and then enters the extrusion roller to be pressed on the surface of the metal plate completely. When the one end that squeeze roll was kept away from to the metal sheet just left the V-arrangement recess that falls, the film cutter card is gone into the V-arrangement recess that falls under the promotion of first cylinder in, at the in-process jack-up tectorial membrane strip of card income for the tectorial membrane strip is rotatory upwards along rotating the hookup location, and finally sticiss the tectorial membrane strip on the interior lateral wall face that the V-arrangement recess that falls is close to the guide roll. Meanwhile, the film is cut off, and one end of the film close to the film covering strip is attached to the surface of the film covering strip under the extrusion of the film cutting knife. Subsequently, the film cutting knife descends under the driving of the first cylinder, the film covering strip restores to the original state, and at the moment, the film cutting is finished. The film laminating block replaces manual work to attach a film to one end of a metal plate, and the film is conveyed to the position below a squeezing roller through a conveying roller after pre-compaction, so that the process of attaching the film and pressing the film is completed. The process realizes the automatic film pasting of the metal plate, reduces the labor intensity of personnel and can ensure that the extrusion effect of the extrusion roller is better.

The utility model discloses further set up to: the film covering block comprises a limiting sliding groove with a downward opening, a sliding block which is arranged in the limiting sliding groove in a sliding mode in the vertical direction, an elastic part connected between the bottom of the limiting sliding groove and the sliding block, and a plurality of clamping hole blocks which are uniformly distributed and connected below the sliding block, wherein the clamping hole blocks are positioned on one side, close to the guide roller, of the inverted V-shaped groove, the clamping hole blocks extend downwards from the opening end of the limiting sliding groove when the elastic part is in a natural state, the section, perpendicular to the axial direction of the guide roller, of each clamping hole block is a right-angled triangle, and the bevel edge of each triangle is arranged downwards in an inclined mode from the; still be provided with the hole cutter that is used for cutting the hole to the film between blowing roller and the tensioning roller, the hole cutting of film is passed to the card hole piece.

Through adopting above-mentioned technical scheme, the open end downwardly extending of spacing spout is followed to the card hole piece and can not fall down, and the film after the cutting hole sword cutting can block on the card hole piece, guarantees that the film can not drop from the tectorial membrane piece easily, increases the success rate of automatic pad pasting, makes this automatic laminating machine of metal sheet have the practicality more. In order to prevent that the metal sheet from being blocked by the card hole piece when sending into the squeeze roll, card hole piece perpendicular to guide roll axial cross-section is right angled triangle, when the metal sheet contacted with card hole piece, card hole piece alright with in being impressed spacing spout gradually, avoid this problem. Meanwhile, the design of the plurality of clamping hole blocks ensures that the area of the cutting hole on the film is not too large, and the phenomenon that the film clamp is easy to fall off due to loose of the film clamp is avoided, so that the expected effect cannot be achieved.

The utility model discloses further set up to: the hole cutting machine comprises a plurality of groups of hole cutting knives and hole cutting platforms which are arranged along the width direction of the film in a one-to-one correspondence mode, each group of hole cutting knives and hole cutting platforms are arranged corresponding to the position of a hole clamping block, the film penetrates through the hole cutting knives and the hole cutting platforms, and the hole cutting knives back to one side of the hole cutting platforms are provided with second cylinders which drive the hole cutting knives to be close to the hole cutting platforms to cut holes.

Through adopting above-mentioned technical scheme, avoided the trouble that needs artifical earnestly to bring, can make simultaneously earnestly the position more accurate, more perfect with the cooperation of card hole piece.

The utility model discloses further set up to: the slider is located the fixed connection of the V-arrangement recess of falling one side near the squeeze roll and has the compact heap, the compact heap is located same horizontal plane with the minimum of draw-in hole piece.

By adopting the technical scheme, the film pre-pressed by the film covering strip is compressed again, so that the compression effect of the extrusion roller is further improved; under the condition that is not equipped with the compact heap, when the metal sheet leaves the V-arrangement recess below completely, at the in-process of film cutter cutting film, the film that the metal sheet kept away from squeeze roll one end can cut the film cutter and lift up, and after the film cutter resume state, this place film did not compress tightly on the metal sheet. After the pressing block is arranged, all films on the surface of the metal plate can be pressed under the action of the pressing block, so that the final film pasting effect of the metal plate is ensured; simultaneously, if not being equipped with under the condition of compact heap, when the transfer roller one end was kept away from to the metal sheet left the card hole piece, the card hole piece stretches out under the effect of elastic component immediately, pushes down the film to the position that is less than the metal sheet upper surface, causes the pad pasting process difficulty, through setting up the compact heap, just can stretch out from the cut hole on the film by the card hole piece when making the metal sheet keep away from transfer roller one end and leave the compact heap, this problem has effectually been avoided.

The utility model discloses further set up to: and two sides of the hole cutting machine are respectively and rotatably connected with a limiting roller parallel to the discharging roller, and one section of the film between the two limiting rollers is vertical to the movement direction of the hole cutting knife.

Through adopting above-mentioned technical scheme, the film is under the guide of spacing roller, and the cutting effect has been guaranteed to the direction of motion of perpendicular to cut hole sword all the time.

The utility model discloses further set up to: and a waste film collecting tank is arranged under the hole cutting machine.

By adopting the technical scheme, the waste film collecting work of falling from the hole cutting knife is facilitated, and the automatic laminating machine for the metal plates is green and environment-friendly.

The utility model discloses further set up to: a first light emitter and a second light emitter which are close to the film cutting knife are respectively arranged on two sides of the film cutting knife close to the input end and the output end of the film, a first light receiver and a second light receiver are vertically arranged opposite to the first light emitter and the second light emitter, and the two light emitters and the two light receivers are respectively positioned above and below the position where the metal plate passes through; the frame is further provided with a controller, the first light receiver and the second light receiver are electrically connected with the controller, and the controller processes electric signals and controls the stretching of the first air cylinder and the second air cylinder.

By adopting the technical scheme, when the metal plate enters the guide roller and shields the first light emitter/the second light emitter on the side, close to the film input end, of the film cutting knife, the corresponding first light receiver/second light receiver cannot receive light signals, the first light receiver/second light receiver feeds back results to the controller, and at the moment, the controller is in an activated state; when the tail end of the metal plate just leaves one side of the film cutter close to the output end of the film, the first light receiver and the second light receiver simultaneously receive light signals and feed the signals back to the controller, the controller sends an instruction to enable the first air cylinder and the second air cylinder to stretch up and down once, when the film is cut, the cutting hole in the film is cut, the full-automatic operation of the film is guaranteed, and then the controller waits for next activation.

The utility model discloses further set up to: the conveying roller is wrapped with an elastic pad.

Through adopting above-mentioned technical scheme, avoided metal sheet lower surface and the direct friction of transfer roller to damage the lower surface of metal sheet.

To sum up, the utility model discloses a beneficial technological effect does:

1. through setting up tectorial membrane piece and tectorial membrane strip, replaced the manual work to paste the film at metal sheet one end, realized the automatic pad pasting of metal sheet, because the pre-compaction effect of tectorial membrane strip also makes the squeeze roll compress tightly the effect better.

2. Through the arrangement of the hole cutting machine, the hole clamping block and the pressing block, the film can be stably attached to the film covering block and cannot easily fall off from the film covering block, so that the automatic metal plate film covering machine has higher practicability; the pressing effect of the squeeze roller is further improved by the arrangement of the pressing block.

3. The full-automatic process of the metal plate film covering is completed by arranging the film cutting knife, the hole cutting machine and the light sensing system, so that the operation intensity of workers is greatly reduced, and the metal plate film is more regular and attractive.

Drawings

FIG. 1 is a schematic view of the overall structure of an automatic laminating machine for metal plates disclosed in the present invention;

FIG. 2 is a partial cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is an enlarged view of a portion B of FIG. 1;

FIG. 4 is a partial schematic view of an automatic laminating machine for metal sheets, which is shown in FIG. 1 in a different view.

Reference numerals: 1. a frame; 2. a film; 3. a conveying roller; 4. a squeeze roll; 5. a discharge roller; 6. a tension roller; 7. a guide roller; 8. coating a film block; 9. an inverted V-shaped groove; 10. film covering strips; 11. a torsion spring; 12. a film cutter; 13. a first cylinder; 81. a limiting chute; 82. a slider; 83. an elastic member; 84. a hole clamping block; 14. a hole cutting machine; 141. a hole cutter; 142. a hole cutting table; 15. a second cylinder; 16. a compression block; 17. a limiting roller; 18. a waste film collecting tank; 19. a first light emitter; 20. a second light emitter; 21. a first optical receiver; 22. a second optical receiver; 23. a controller; 24. an elastic pad.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses an automatic laminating machine of metal sheet, including frame 1, film 2, the in bank sets up a plurality of transfer rollers 3 on the horizontal direction, with transfer roller 3 parallel arrangement's squeeze roll 4, blowing roller 5 and tensioning roller 6, form the clearance that supplies the metal sheet to pass through between squeeze roll 4 and the transfer roller 3, still include guide roll 7 and tectorial membrane piece 8, guide roll 7 is located frame 1 and is close to input one side, tectorial membrane piece 8 is located between guide roll 7 and the squeeze roll 4. The film 2 is output by the feed roller, and the film 2 is straightened by the tension roller 6, placed in the horizontal direction by the guide roller 7 and attached to the film covering block 8. The bottom of the guide roller 7 and the bottom of the film coating block 8 are both higher than the horizontal plane of the bottom of the squeeze roller 4, so that the metal plate is ensured not to be directly contacted with the film coating block 8 and the guide roller 7, and preparation is made for film pasting of the metal plate. In order to prevent the lower surface of the metal plate from being damaged by direct friction with the transfer roller 3, a foam elastic pad 24 may be wrapped outside the transfer roller 3.

Referring to fig. 2 and 3, tectorial membrane piece 8 bottom is parallel to the transfer roller 3 axial and is equipped with the recess of falling V-arrangement 9, and the recess of falling V-arrangement 9 is close to and has tectorial membrane strip 10 on 7 edges of guide roll one side, is connected through torsion spring 11 between tectorial membrane strip 10 and the tectorial membrane piece 8, the utility model discloses torsion spring 11 in this embodiment is equipped with 2 departments altogether. When the torsion spring 11 is in a natural state, one end of the film coating strip 10 obliquely extends downwards along the direction from the film coating block 8 to the extrusion roller 4 into a position between the horizontal plane of the bottom surface of the extrusion roller 4 and the horizontal plane of the top surface of the conveying roller 3. When the metal plate is not fed, one end of the film 2 is pressed into a position between the horizontal plane of the bottom surface of the extrusion roller 4 and the horizontal plane of the top surface of the conveying roller 3 by the film covering strip 10 under the action of the torsion spring 11, when the metal plate is fed to the extrusion roller 4, one end of the metal plate is firstly contacted with the film covering strip 10, along with the further movement of the metal plate, the torsion spring 11 is extruded, and the film 2 on the film covering strip 10 is pressed on the metal plate under the action force of the torsion spring 11. During the process of the metal plate continuing to advance, the film coating strip 10 is pressed on the top surface of the metal plate through the film 2 by the metal plate, at the moment, the film coating strip 10 gives a force opposite to the advancing direction of the metal plate to the surface of the metal plate, so that the film 2 is pressed on the metal plate in advance, and then enters the extrusion roller 4 to press the film 2 on the surface of the metal plate completely. The film cutting knife 12 with the cross section being right-angled triangle along the axial direction of the conveying roller 3 is arranged below the inverted V-shaped groove 9, the film cutting knife 12 is fixedly connected with a first air cylinder 13 which drives the film cutting knife 12 to be clamped in the inverted V-shaped groove 9 or separated from the inverted V-shaped groove 9, the film coating strip 10 is tightly pressed on the inner side wall surface, close to the guide roller 7, of the inverted V-shaped groove 9 when the film cutting knife 12 is clamped in the inverted V-shaped groove 9, when one end, far away from the extrusion roller 4, of the metal plate just leaves the inverted V-shaped groove 9, the film cutting knife 12 is clamped in the inverted V-shaped groove 9 under the pushing of the first air cylinder 13, the film coating strip 10 is jacked up in the clamping process, the film coating strip 10 rotates upwards along the rotating connection position, and finally the film coating strip 10 is tightly pressed on the inner side wall surface, close to the guide roller 7. At the same time, the film 2 is cut off, and one end of the film 2 close to the film covering strip 10 is attached to the surface of the film covering strip 10 under the extrusion of the film cutting knife 12. Subsequently, the film cutting knife 12 is driven by the first cylinder 13 to descend, the film covering strip 10 is restored to the original state, and at this time, the film 2 is cut completely.

In order to ensure that the film 2 can not easily fall off from the film covering block 8, the success rate of automatic film pasting is increased, and the automatic film covering machine for the metal plate has higher practicability. This tectorial membrane piece 8 includes spacing spout 81 that the opening is decurrent, vertical direction slides and sets up slider 82 in spacing spout 81, connects the elastic component 83 between the tank bottom of spacing spout 81 and slider 82 and connects the horizontal cross-section of a plurality of evenly distributed below slider 82 and be rectangular card hole piece 84, and this elastic component 83 is a plurality of springs that set up between the tank bottom of spacing spout 81 and slider 82. The hole-locking block 84 is located on the side of the inverted V-shaped groove 9 close to the guide roller 7, and protrudes downward from the open end of the limiting chute 81 when the elastic member 83 is in a natural state, and cannot fall down.

Still be provided with the hole cutting machine 14 that is used for cutting the hole to film 2 between blowing roller 5 and tensioning roller 6, hole cutting machine 14 includes a plurality of groups one-to-one that set up along the width direction of film 2 and cuts hole sword 141 and hole platform 142, and the position of every group hole sword 141 and hole platform 142 all corresponds with the position of a jack block 84, and film 2 passes between from hole sword 141 and the hole platform 142, is equipped with rectangular useless membrane collecting vat 18 under hole cutting machine 14. The hole cutter 141 is located below the hole cutter 142, the blade of the hole cutter is a rectangular frustum which penetrates vertically, the second cylinder 15 for driving the hole cutter is arranged below the hole cutter 141, and the hole cutter 142 is a cuboid with the same shape as the knife edge. The hole cutter 141 moves upward through the hole cutter table 142, the film 2 is cut into a hole, and the waste film falls from the inside of the quadrangular frustum pyramid into the waste film collecting tank 18. In addition, in order to ensure that the film 2 on the discharging roller 5 has a good cutting effect all the time, two limiting rollers 17 parallel to the discharging roller 5 are rotatably connected to two sides of the hole cutting machine 14, and a section of the film 2 between the two limiting rollers 17 is perpendicular to the moving direction of the hole cutting knife 141, so that the film 2 is always positioned between the two limiting rollers 17 and perpendicular to the moving direction of the hole cutting knife 141.

The film 2 after being punched by the punching blade 141 can be stuck on the punching block 84. Meanwhile, in order to prevent the metal plate from being blocked by the hole clamping block 84 when the metal plate is sent into the squeeze roller 4, the axial section of the hole clamping block 84 perpendicular to the guide roller 7 is a right-angled triangle, and when the metal plate contacts the hole clamping block 84, the hole clamping block 84 can be gradually pressed into the limiting sliding groove 81, so that the problem is avoided. In addition, since the block 84 is first contacted with the upper surface of the metal plate, there may be some scratch to the metal plate, therefore, the place where the block 84 is contacted with the metal plate may be set to be arc-shaped to reduce friction; or the bottom end of the clamping hole block 84, which is contacted with the metal plate, is provided with the soft brush, so that the metal plate can be protected, dirt on the upper surface of the input end of the metal plate can be scraped, and the film sticking effect is better.

When the end of the metal plate far away from the conveying roller 3 leaves the hole clamping block 84, the hole clamping block 84 extends out under the action of the elastic piece 83, and the film 2 is pressed to a position lower than the upper surface of the metal plate, so that the film pasting process is difficult; meanwhile, when the metal plate completely leaves the lower part of the inverted V-shaped groove 9, in the film cutting process of the film cutting knife 12, the film 2 on the end, away from the squeezing roller 4, of the metal plate can be lifted by the film cutting knife 12, and after the film cutting knife 12 is in a recovery state, the film 2 is not pressed on the metal plate. Therefore, referring to fig. 3, the pressing block 16 is adhered to the slide block 82 on the side of the inverted V-shaped groove 9 close to the squeeze roller 4, and the pressing block 16 and the lowest point of the clamping hole block 84 are located on the same horizontal plane. Through setting up compact heap 16, the card hole piece 84 just can stretch out from the cut hole on film 2 when making the metal sheet keep away from transfer roller 3 one end and leave compact heap 16, this problem has effectually been avoided, and under the effect of compact heap 16, all films 2 in metal sheet surface are compressed tightly, guarantee final metal sheet pad pasting effect.

Referring to fig. 2 and 4, in order to complete the full-automatic process of metal plate coating, the operation intensity of workers is greatly reduced. A first light emitter 19 and a second light emitter 20 are respectively arranged on two sides of the film cutting knife 12 close to the input end and the output end of the film 2, the first light emitter 19 is arranged on one side of the film cutting knife 12 close to the squeezing roller 4, and the second light emitter 20 is arranged on the other side of the film cutting knife 12 close to the guide roller 7. A first light receiver 21 and a second light receiver 22 are arranged vertically opposite to the first light emitter 19 and the second light emitter 20, and the two light emitters and the two light receivers are respectively positioned above and below the position where the metal plate passes through; the frame 1 is further provided with a controller 23, the first light receiver 21 and the second light receiver 22 are both electrically connected to the controller 23, and the controller 23 processes an electrical signal and controls the extension and retraction of the first cylinder 13 and the second cylinder 15 (refer to fig. 4). When the metal plate enters the guide roller 7 and shields the first light emitter 19, the corresponding first light receiver 21 does not receive the light signal, and the result is transmitted to the controller 23, and at the moment, the controller 23 is in an activated state; when the tail end of the metal plate just leaves the position of the film cutting knife 12 and is close to one side of the extrusion stick 4, and at the moment, the first light receiver 21 and the second light receiver 22 simultaneously receive light signals, the controller 23 executes a cylinder stretching command to enable the first cylinder 13 and the second cylinder 15 to stretch up and down once, the film 2 is cut, the cutting hole in the film 2 is cut, the full-automatic operation of the film 2 is guaranteed, and then the controller 23 waits for the next activation.

The implementation principle of the embodiment is as follows: when the film cutting device is used for the first time, the position of the tension roller 6 is arranged according to the length of a metal plate, the length of the metal plate to be pasted with a film is just completely covered by the hole cutting machine 14 to the length of the film 2 opposite to the inverted V-shaped groove 9, meanwhile, the hole cutting machine 14 is needed to manually cut the film 2, the film 2 is sleeved on the feeding roller 5, the end part of the film 2 is pulled to sequentially pass through the two limiting rollers 17, the tension roller 6 and the guide roller 7 to the film covering block 8, the film 2 is fixed on the hole clamping block 84 through the cut hole in the film 2, the end part of the film 2 is manually pressed with the film covering strip 10, the film 2 is required to completely cover one side of the film covering strip 10 close to the input end of the film 2, and the end part of the film covering strip 10 extends out of the edge of. When the metal plate enters the guide roller 7 and shields the first light emitter 19, the corresponding first light receiver 21 does not receive the light signal, and then the result is fed back to the controller 23, and at the moment, the controller 23 is in an activated state; as the metal plate continues to advance, one end of the metal plate contacts the film-coating strip 10, and the film 2 on the film-coating strip 10 is pressed on the metal plate. During the process of further advancing the metal plate, the film covering strip 10 is pressed by the metal plate on the top surface of the metal plate, at this time, the film covering strip 10 gives a force to the surface of the metal plate opposite to the advancing direction of the metal plate, so that the film 2 is pressed on the metal plate in advance, and then the metal plate is pre-pressed again by the pressing block 16 and is fed below the pressing roller 4 to be completely pressed.

When the tail end of the metal plate just leaves the left side of the position of the film cutting knife 12, the second light emitter 20 and the second light receiver 22 simultaneously receive light signals, the controller 23 executes a cylinder stretching command, so that the first cylinder 13 and the second cylinder 15 stretch up and down once, the film 2 is cut, the cutting hole in the film 2 is cut, and then the controller 23 waits for the next activation. Thereafter, the metal sheet is completely pressed by the pressing roll 4, finally, under the pretension of the pressing block 16.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. The utility model provides an automatic laminating machine of metal sheet, including frame (1), set up in a row a plurality of transfer rollers (3) on the horizontal direction, with transfer roller (3) parallel arrangement's squeeze roll (4), blowing roller (5) and tensioning roller (6), form the clearance that supplies metal sheet and film (2) to pass through between squeeze roll (4) and transfer roller (3), its characterized in that still includes guide roll (7) and tectorial membrane piece (8), guide roll (7) are located frame (1) and are close to input one side, tectorial membrane piece (8) are located between guide roll (7) and squeeze roll (4), guide roll (7) bottom and tectorial membrane piece (8) bottom all are higher than the bottom place horizontal plane of squeeze roll (4); the bottom of the film coating block (8) is parallel to the axial direction of the conveying roller (3) and is provided with an inverted V-shaped groove (9), the inverted V-shaped groove (9) is close to one side edge of the guide roller (7) and is hinged with a film coating strip (10), the film coating strip (10) is connected with the film coating block (8) through a torsion spring (11), the film (2) is output from the discharging roller (5) and sequentially passes through a tension roller (6) and the guide roller (7) to the film coating strip (10), and when the torsion spring (11) is in a natural state, one end of the film coating strip (10) obliquely downwards extends into a position between a horizontal plane where the extrusion roller (4) is located and a horizontal plane where the conveying roller (3) is located along the direction from the film coating block (8) to the extrusion roller (4); fall V-arrangement recess (9) below and be provided with film cutter (12), film cutter (12) lower fixedly connected with drive film cutter (12) card in falling V-arrangement recess (9) or break away from first cylinder (13) of falling V-arrangement recess (9), tectorial membrane strip (10) are sticis on falling the interior lateral wall face that V-arrangement recess (9) are close to guide roll (7) when film cutter (12) card is in falling V-arrangement recess (9).

2. The automatic metal plate laminating machine according to claim 1, wherein the laminating block (8) comprises a limiting sliding groove (81) with a downward opening, a sliding block (82) which is arranged in the limiting sliding groove (81) in a sliding mode in the vertical direction, an elastic piece (83) connected between the bottom of the limiting sliding groove (81) and the sliding block (82), and a plurality of uniformly distributed clamping hole blocks (84) connected below the sliding block (82), wherein the clamping hole blocks (84) are located on one side, close to the guide roller (7), of the inverted V-shaped groove (9), the clamping hole blocks (84) extend downwards from the opening end of the limiting sliding groove (81) when the elastic piece (83) is in a natural state, the section, perpendicular to the axial direction of the guide roller (7), of each clamping hole block (84) is a right triangle, and the inclined edge of each triangle is arranged downwards in an inclined mode from the input end to the output end of the film (2); still be provided with between blowing roller (5) and tensioning roller (6) and be used for cutting the hole machine (14) of hole to film (2), the hole of cutting of film (2) is passed in card hole piece (84).

3. The automatic laminating machine for metal plates according to claim 2, wherein the hole cutting machine (14) comprises a plurality of groups of hole cutting knives (141) and hole cutting tables (142) which are arranged in the width direction of the film (2) in a one-to-one correspondence mode, the positions of each group of hole cutting knives (141) and each group of hole cutting tables (142) correspond to the position of a hole clamping block (84), the film (2) penetrates through the space between the hole cutting knives (141) and the hole cutting tables (142), and one side, away from the hole cutting tables (142), of each hole cutting knife (141) is provided with a second air cylinder (15) which drives the hole cutting knives to be close to the hole cutting tables (142) for hole cutting.

4. The automatic laminating machine for metal plates according to claim 2, wherein a pressing block (16) is fixedly connected to one side, close to the extrusion roller (4), of the inverted V-shaped groove (9) of the sliding block (82), and the lowest points of the pressing block (16) and the clamping hole block (84) are located on the same horizontal plane.

5. An automatic laminating machine for metal plates according to claim 3, characterized in that two limiting rollers (17) parallel to the discharging roller (5) are rotatably connected to each side of the hole cutting machine (14), and a section of the film (2) between the two limiting rollers (17) is perpendicular to the moving direction of the hole cutting knife (141).

6. An automatic laminating machine for metal sheets according to claim 5, characterised in that a scrap film collecting tank (18) is provided directly below the hole cutter (14).

7. An automatic laminating machine for metal sheets according to claim 3, characterized in that the two sides of the film cutting knife (12) close to the input end and the output end of the film (2) are respectively provided with a first light emitter (19) and a second light emitter (20) which are respectively adjacent to the two sides, a first light receiver (21) and a second light receiver (22) are arranged vertically opposite to the first light emitter (19) and the second light emitter (20), and the two light emitters and the two light receivers are respectively positioned above and below the metal sheet passing position; the frame (1) is further provided with a controller (23), the first light receiver (21) and the second light receiver (22) are electrically connected with the controller (23), and the controller (23) processes electric signals and controls the first air cylinder (13) and the second air cylinder (15) to stretch.

8. An automatic laminating machine for metal sheets according to claim 1, characterised in that the conveying rollers (3) are externally wrapped with elastic pads (24).

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