CN214524640U - Film sticking machine - Google Patents

Abstract

The utility model relates to the technical field of film sticking, in particular to a film sticking machine, which comprises a film sticking roller mechanism, a driving mechanism, a film placing roller mechanism, a guide roller and a frame, wherein the film sticking roller mechanism is fixedly connected in the middle of the frame; the driving mechanism is in transmission connection with the film sticking roller mechanism; the film releasing roller mechanism is fixedly connected to the rack and is matched with the guide roller mechanism; the head end and the tail end of the rack are respectively connected with a plurality of guide rollers arranged side by side in a rotating fit mode, and the upper roller surface of each guide roller is tangent to the top surface of the rack. The utility model discloses a film sticking machine, the distance between the upper clamping roller and the lower clamping roller in the inner film sticking roller mechanism is convenient to adjust, and the film sticking machine is convenient to be suitable for sticking films of plates with different thicknesses; the utility model discloses inside last pinch roll can all rotate under actuating mechanism's drive with lower pinch roll, makes its pad pasting to panel carry the effect better.

Description

Film sticking machine

Technical Field

The utility model relates to a pad pasting technical field, more specifically say, relate to a pad pasting machine.

Background

In some wood board processing, particularly some higher-grade wood boards, a layer of thin film needs to be adhered to the wood board to effectively protect the wood board, so that the waterproof and anticorrosion effects of the wood board are improved, at present, film adhering is often performed by multiple persons in a factory, and because the film adhering is performed by manual visual inspection and experience, the position of the film adhering is often deviated, so that the quality of the film adhering is affected; in addition, the labor input amount is large in the film pasting process, the production cost is high, and the efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a film sticking machine which can effectively solve the problems of manual film sticking; the utility model discloses a sticking film machine, the pad pasting is efficient, and the pad pasting is effectual.

In order to achieve the purpose, the application provides a film sticking machine which comprises a film sticking roller mechanism, a driving mechanism, a film placing roller mechanism, a guide roller and a rack, wherein the film sticking roller mechanism is fixedly connected in the middle of the rack; the driving mechanism is in transmission connection with the film sticking roller mechanism; the film releasing roller mechanism is fixedly connected to the rack and is matched with the guide roller mechanism; the head end and the tail end of the rack are respectively connected with a plurality of guide rollers arranged side by side in a rotating fit mode, and the upper roller surface of each guide roller is tangent to the top surface of the rack.

Optionally, the film pasting roller mechanism comprises an upper clamping roller, an upper roller shaft, a height adjusting assembly, a lower clamping roller, a lower roller shaft, a worm wheel and a vertical frame; two ends of the vertical frame are fixed at two ends of the middle of the rack; the upper clamping roller is fixed in the middle of the upper roller shaft; two ends of the upper roll shaft are in sliding fit with longitudinal slideways at two ends of the vertical frame, one end of the upper roll shaft is rotatably connected to the height adjusting assembly, the height adjusting assembly is fixed on the vertical frame, and the other end of the upper roll shaft is fixedly connected with a worm gear; the lower clamping roller is arranged right below the upper clamping roller and fixed in the middle of a lower roller shaft, two ends of the lower roller shaft are rotatably matched with two ends of the vertical frame, and one end of the lower roller shaft is fixedly connected with a worm wheel; the driving mechanism is in meshing transmission connection with the two worm gears; the lower clamping roller is positioned in a clamping roller groove in the middle of the rack, and the upper roller surface of the lower clamping roller is coplanar with the top surface of the rack.

Optionally, the upper roll shaft is fixedly connected with two axial retaining rings, and the two axial retaining rings are clamped and retained on the inner side surface of the stand.

Optionally, the height adjusting assembly comprises a bearing bracket, an adjusting screw and a transverse seat; the upper end of the adjusting screw is in running fit with the bearing bracket, the middle end of the adjusting screw is in threaded fit with the transverse seat, and the transverse seat is fixed on the vertical frame; the upper roll shaft is in running fit with the bearing shaft frame.

Optionally, the driving mechanism includes a driving motor, a bidirectional worm and a rod seat; the driving motor is fixed on the vertical frame through a motor support, an output shaft of the driving motor is connected with a bidirectional worm through a coupling, the middle part of the bidirectional worm is in rotating fit with a rod seat, and the rod seat is fixed on the vertical frame; the spiral lines at the upper end and the lower end of the bidirectional worm are opposite in rotating direction, and the upper end and the lower end of the bidirectional worm are respectively meshed with a worm wheel in a transmission connection mode to drive the two worm wheels to rotate in different directions.

Optionally, the film releasing roller mechanism comprises a film releasing roller body, a first roller shaft, a film tearing roller body, a second roller shaft, a side plate, a linkage chain wheel and a chain; the film placing roller body is fixed in the middle of the first roller shaft, two ends of the first roller shaft are respectively in running fit with the lower end of one side plate, and the two side plates are relatively fixed at two ends of the rack; the film tearing roller body is fixed on a second roller shaft, and two ends of the second roller shaft are rotatably matched with the upper ends of the two side plates; and the outer ends of the second roller shaft and the first roller shaft are respectively fixed with a linkage chain wheel, and the two linkage chain wheels are connected through chain transmission.

Optionally, the film sticking machine further comprises a tensioning mechanism; the tensioning mechanism comprises an arc-shaped top plate, a rectangular vertical rod, a transverse seat plate and a tensioning spring; the arc-shaped top plate is fixed at the top end of the rectangular vertical rod; the middle part of the rectangular vertical rod is in sliding fit with the horizontal seat plate, and the horizontal seat plate is fixed on the side plate; a tension spring is sleeved on the rectangular vertical rod between the arc-shaped top plate and the transverse seat plate; the inner arc surface of the arc-shaped top plate is pressed on the first roll shaft.

Optionally, the film sticking machine further comprises a plate feeding limiting mechanism; the plate feeding limiting mechanism comprises a limiting baffle, a horizontal sliding block, a bidirectional screw, a bearing rod seat and a central rotating wheel; two ends of the bidirectional screw are respectively and rotatably matched on a bearing rod seat, and the two bearing rod seats are relatively fixed at two ends of the bottom surface of the rack; the middle part of the bidirectional screw is connected with two horizontal sliding blocks which are in relative sliding fit in the horizontal slideway of the rack through thread transmission, the upper ends of the two horizontal sliding blocks are respectively fixedly connected with a limit baffle, and the two limit baffles are in relative sliding fit on the top surface of the rack; the middle of the bidirectional screw is fixedly connected with the central rotating wheel.

The utility model has the advantages that: the utility model discloses a film sticking machine, the distance between the upper clamping roller and the lower clamping roller in the inner film sticking roller mechanism is convenient to adjust, and the film sticking machine is convenient to be suitable for sticking films of plates with different thicknesses; the upper clamping roller and the lower clamping roller in the utility model can be driven by the driving mechanism to rotate, so that the film pasting conveying effect of the film pasting conveying device on the plate is better; the utility model discloses inside is equipped with into board stop gear, can adjust the distance between two limit baffle according to the width of panel, and the feeding of being convenient for is steady, and the pad pasting levels, prevents that panel pad pasting in-process from taking place the skew and influencing the pad pasting effect.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention or the related art, the drawings required to be used in the description of the embodiments or the related art will be briefly introduced 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 overall schematic diagram provided in an embodiment of the present invention;

fig. 2 is a second overall schematic diagram provided in the embodiment of the present invention;

fig. 3 is a schematic view of a film laminating roller mechanism provided by an embodiment of the present invention;

fig. 4 is a schematic view of a height adjustment assembly provided by an embodiment of the present invention;

fig. 5 is a schematic view of a driving mechanism provided in an embodiment of the present invention;

fig. 6 is a schematic view of a film-releasing roller mechanism provided in the embodiment of the present invention;

fig. 7 is a schematic view of a tensioning mechanism provided by an embodiment of the present invention;

fig. 8 is a schematic view of a board feeding limiting mechanism according to an embodiment of the present invention.

Icon: a film pasting roller mechanism 1; an upper nip roller 101; an upper roller shaft 102; a height adjustment assembly 103; a bearing bracket 103A; an adjusting screw 103B; a lateral seat 103C; a lower nip roller 104; a lower roller shaft 105; a worm gear 106; a stand 107; a drive mechanism 2; a drive motor 201; a bidirectional worm 202; a rod seat 203; a film-releasing roller mechanism 3; a film releasing roller body 301; a first roller shaft 302; a film tearing roller body 303; a second roller shaft 304; side plates 305; a link sprocket 306; a chain 307; a guide roller 4; a frame 5; a tension mechanism 6; an arc-shaped top plate 601; a rectangular vertical post 602; a horizontal seat plate 603; a tension spring 604; a plate feeding limiting mechanism 7; a limit baffle 701; a horizontal slider 702; a bidirectional screw 703; a stem bearing mount 704; a central wheel 705.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly disposed on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship illustrated in the drawings for convenience in describing the present application and to simplify description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, the meaning of a plurality of or a plurality of is two or more unless specifically limited otherwise.

It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for understanding and reading the contents disclosed in the specification, and are not used for limiting the conditions that the present application can implement, so the present invention has no technical significance, and any structural modification, ratio relationship change or size adjustment should still fall within the scope of the technical content disclosed in the present application without affecting the efficacy and the achievable purpose of the present application. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present application, and changes or modifications in the relative relationship may be made without substantial technical changes.

The present invention will be described in further detail with reference to the accompanying fig. 1-8.

The first embodiment is as follows:

as shown in fig. 1-8, a film sticking machine comprises a film sticking roller mechanism 1, a driving mechanism 2, a film releasing roller mechanism 3, a guide roller 4 and a frame 5, wherein the film sticking roller mechanism 1 is fixedly connected in the middle of the frame 5; the driving mechanism 2 is in transmission connection with the film sticking roller mechanism 1; the film releasing roller mechanism 3 is fixedly connected to the rack 5, and the film releasing roller mechanism 3 is matched with the guide roller 4 mechanism; the head end and the tail end of the frame 5 are respectively connected with a plurality of guide rollers 4 which are arranged side by side in a rotating fit mode, and the upper roller surface of each guide roller 4 is tangent to the top surface of the frame 5. The utility model discloses a sticking film machine, before using, install the packaging film book on putting membrane roller mechanism 3, make the expansion end of packaging film convolute on sticking film roller mechanism 1, when carrying out the pad pasting during operation, control panel slides to the inboard of joint at sticking film roller mechanism 1 on guide roll 4, then connect actuating mechanism 2 to connect the electric start, can control sticking film roller mechanism 1 and carry out the pad pasting and control the panel output behind the pad pasting to the different positions of panel after actuating mechanism 2 starts, decide the packaging film behind the pad pasting, can accomplish the pad pasting work.

Example two:

as shown in fig. 1-8, the film laminating roller mechanism 1 comprises an upper nip roller 101, an upper roller shaft 102, a height adjusting assembly 103, a lower nip roller 104, a lower roller shaft 105, a worm gear 106 and a stand 107; two ends of the vertical frame 107 are fixed at two ends in the middle of the frame 5; the upper nip roller 101 is fixed in the middle of the upper roller shaft 102; two ends of the upper roller shaft 102 are in sliding fit with longitudinal slideways at two ends of the vertical frame 107, one end of the upper roller shaft 102 is rotatably connected to the height adjusting component 103, the height adjusting component 103 is fixed on the vertical frame 107, and the other end of the upper roller shaft 102 is fixedly connected with a worm gear 106; the lower clamping roller 104 is arranged right below the upper clamping roller 101, the lower clamping roller 104 is fixed in the middle of a lower roller shaft 105, two ends of the lower roller shaft 105 are in running fit with two ends of the vertical frame 107, and one end of the lower roller shaft 105 is fixedly connected with a worm gear 106; the driving mechanism 2 is in meshed transmission connection with the two worm gears 106; the lower nip roller 104 is positioned in a nip roller groove in the middle of the frame 5, and the upper roller surface of the lower nip roller 104 is coplanar with the top surface of the frame 5. The utility model discloses a film sticking machine, the distance between the upper clamping roller 101 and the lower clamping roller 104 in the internal film sticking roller mechanism 1 is convenient to adjust, and is convenient for the film sticking of plates with different thicknesses; the upper clamping roller 101 and the lower clamping roller 104 in the utility model can be driven by the driving mechanism 2 to rotate, so that the film sticking and conveying effect on the plate is better; the distance between the upper nip roller 101 and the lower nip roller 104 can be adjusted by the height adjusting assembly 103, and the two worm gears 106 can rotate in different opposite directions under the control of the driving mechanism 2, one rotates clockwise, and the other rotates counterclockwise, so that the upper nip roller 101 and the lower nip roller 104 are driven by the upper roller shaft 102 and the lower roller shaft 105 to laminate and lead out after lamination.

Two axial retaining rings are fixedly connected to the upper roll shaft 102, and the two axial retaining rings are clamped and retained on the inner side surface of the stand 107.

The height adjusting assembly 103 comprises a bearing bracket 103A, an adjusting screw 103B and a transverse seat 103C; the upper end of the adjusting screw 103B is rotatably matched on the bearing bracket 103A, the middle end of the adjusting screw 103B is in threaded fit on the transverse seat 103C, and the transverse seat 103C is fixed on the vertical frame 107; the upper roller shaft 102 is rotatably fitted on a bearing bracket 103A. The height adjusting assembly 103 is used for changing the horizontal heights of the upper roller shaft 102 and the upper nip roller 101, so that the distance between the upper nip roller 101 and the lower nip roller 104 is changed, and the rolling and film pasting of the plates with different thicknesses are facilitated; during adjustment, the adjusting screw 103B is rotated to change the contact position with the transverse seat 103C, and the bearing shaft frame 103A is driven to move up and down.

Example three:

as shown in fig. 1 to 8, the driving mechanism 2 includes a driving motor 201, a bidirectional worm 202, and a rod seat 203; the driving motor 201 is fixed on the vertical frame 107 through a motor support, an output shaft of the driving motor 201 is connected with a bidirectional worm 202 through a coupler, the middle part of the bidirectional worm 202 is in running fit with a rod seat 203, and the rod seat 203 is fixed on the vertical frame 107; the spiral directions of the upper and lower ends of the bidirectional worm 202 are opposite, and the upper and lower ends of the bidirectional worm 202 are respectively engaged with and connected with one worm wheel 106 in a transmission manner so as to drive the two worm wheels 106 to rotate in different directions. After the driving motor 201 in the driving mechanism 2 is started, the bidirectional worm 202 can be driven to rotate, the spiral lines at the upper end and the lower end of the bidirectional worm 202 rotate in opposite directions, so that the two worm wheels 106 can be driven to rotate in different directions, and the upper clamping roller 101 and the lower clamping roller 104 are controlled to rotate relatively.

Example four:

as shown in fig. 1-8, the film feeding roller mechanism 3 comprises a film feeding roller body 301, a first roller shaft 302, a film tearing roller body 303, a second roller shaft 304, a side plate 305, a linkage sprocket 306 and a chain 307; the film releasing roller body 301 is fixed in the middle of the first roller shaft 302, two ends of the first roller shaft 302 are respectively and rotatably matched with the lower end of one side plate 305, and the two side plates 305 are relatively fixed at two ends of the frame 5; the film tearing roller body 303 is fixed on a second roller shaft 304, and two ends of the second roller shaft 304 are rotatably matched with the upper ends of the two side plates 305; the outer ends of the second roller shaft 304 and the first roller shaft 302 are respectively fixed with a linkage sprocket 306, and the two linkage sprockets 306 are in transmission connection through a chain 307. When putting membrane roller mechanism 3 and using, the packaging film is rolled up and is installed on putting membrane roller body 301, when utilizing the packaging film pad pasting, tear the protecting film of packaging film and make the expansion end of protecting film coil and fix on tearing membrane roller body 303, along with the expansion of packaging film pad pasting in-process, drive and put membrane roller body 301 and first roller 302 and rotate, first roller 302 drives second roller 304 and tears the rotation of membrane roller body 303 through the cooperation of two chain sprocket 306 and chain 307 when rotating, make the protecting film of tearing convolute on tearing membrane roller body 303, be convenient for subsequent unified processing.

The film sticking machine further comprises a tensioning mechanism 6; the tensioning mechanism 6 comprises an arc-shaped top plate 601, a rectangular vertical rod 602, a transverse seat plate 603 and a tensioning spring 604; the arc top plate 601 is fixed at the top end of the rectangular vertical rod 602; the middle parts of the rectangular vertical rods 602 are in sliding fit with the transverse seat plate 603, and the transverse seat plate 603 is fixed on the side plate 305; a tension spring 604 is sleeved on a rectangular vertical rod 602 between the arc-shaped top plate 601 and the transverse seat plate 603; the inner arc surface of the arc top plate 601 is pressed against the first roller shaft 302. The arc top plate 601 in the tensioning mechanism 6 keeps a state of being pressed against the first roller shaft 302 under the action of the elastic force of the tensioning spring 604, so that the stability of the film releasing roller body 301 can be improved, and the packaging film roll on the film releasing roller body 301 is prevented from being loosened to influence the film sticking quality.

Example five:

as shown in fig. 1-8, the film sticking machine further comprises a plate feeding limiting mechanism 7; the plate feeding limiting mechanism 7 comprises a limiting baffle 701, a horizontal sliding block 702, a bidirectional screw 703, a bearing rod seat 704 and a central rotating wheel 705; two ends of the bidirectional screw 703 are respectively and rotatably matched on a bearing rod seat 704, and the two bearing rod seats 704 are relatively fixed at two ends of the bottom surface of the rack 5; the middle part of the bidirectional screw 703 is connected with two horizontal sliding blocks 702 which are in relative sliding fit in the horizontal slideway of the rack 5 through screw thread transmission, the upper ends of the two horizontal sliding blocks 702 are respectively fixedly connected with a limit baffle 701, and the two limit baffles 701 are in relative sliding fit on the top surface of the rack 5; the middle of the bidirectional screw rod 703 is fixedly connected with a central rotating wheel 705. The utility model is internally provided with a plate feeding limiting mechanism 7, the distance between the two limiting baffles 701 can be adjusted according to the width of the plate, the feeding is convenient and stable, the film sticking is smooth, and the film sticking effect is prevented from being influenced by the deviation in the film sticking process of the plate; the distance between the two limiting baffles 701 in the plate feeding limiting mechanism 7 can be adjusted by rotating the central rotating wheel 705, the central rotating wheel 705 drives the two-way screw 703 to rotate, and the two-way screw 703 can drive the two horizontal sliding blocks 702 to move relatively or move away from each other, so that the distance between the two limiting baffles 701 is changed.

The principle is as follows: the utility model discloses a sticking film machine, before using, install the packaging film book on putting membrane roller mechanism 3, make the expansion end of packaging film convolute on sticking film roller mechanism 1, when carrying out the pad pasting during operation, control panel slides to the inboard of joint at sticking film roller mechanism 1 on guide roll 4, then connect actuating mechanism 2 to connect the electric start, can control sticking film roller mechanism 1 and carry out the pad pasting and control the panel output behind the pad pasting to the different positions of panel after actuating mechanism 2 starts, decide the packaging film behind the pad pasting, can accomplish the pad pasting work.

The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.

It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Claims (8)

1. The utility model provides a sticking film machine, includes film roller mechanism (1), actuating mechanism (2), puts film roller mechanism (3), guide roll (4) and frame (5), its characterized in that: the film sticking roller mechanism (1) is fixedly connected in the middle of the rack (5); the driving mechanism (2) is in transmission connection with the film sticking roller mechanism (1); the film placing roller mechanism (3) is fixedly connected to the rack (5), and the film placing roller mechanism (3) is matched with the guide roller (4) mechanism; the head end and the tail end of the rack (5) are respectively connected with a plurality of guide rollers (4) arranged side by side in a rotating fit mode, and the upper roller surface of each guide roller (4) is tangent to the top surface of the rack (5).

2. The film laminator according to claim 1, wherein: the film pasting roller mechanism (1) comprises an upper clamping roller (101), an upper roller shaft (102), a height adjusting assembly (103), a lower clamping roller (104), a lower roller shaft (105), a worm gear (106) and a vertical frame (107); two ends of the vertical frame (107) are fixed at two ends in the middle of the rack (5); the upper clamping roller (101) is fixed in the middle of the upper roller shaft (102); two ends of the upper roll shaft (102) are in sliding fit with longitudinal slideways at two ends of the vertical frame (107), one end of the upper roll shaft (102) is rotatably connected to the height adjusting assembly (103), the height adjusting assembly (103) is fixed on the vertical frame (107), and the other end of the upper roll shaft (102) is fixedly connected with a worm gear (106); the lower clamping roller (104) is arranged right below the upper clamping roller (101), the lower clamping roller (104) is fixed in the middle of a lower roller shaft (105), two ends of the lower roller shaft (105) are in rotating fit with two ends of the vertical frame (107), and one end of the lower roller shaft (105) is fixedly connected with a worm wheel (106); the driving mechanism (2) is in meshed transmission connection with the two worm gears (106); the lower clamping roller (104) is positioned in a clamping roller groove in the middle of the rack (5), and the upper roller surface of the lower clamping roller (104) is coplanar with the top surface of the rack (5).

3. The film laminator according to claim 2, wherein: two axial retaining rings are fixedly connected to the upper roll shaft (102) and are clamped and retained on the inner side face of the vertical frame (107).

4. The film laminator according to claim 2, wherein: the height adjusting assembly (103) comprises a bearing bracket (103A), an adjusting screw rod (103B) and a transverse seat (103C); the upper end of the adjusting screw rod (103B) is rotatably matched on the bearing frame (103A), the middle end of the adjusting screw rod (103B) is in threaded fit on the transverse seat (103C), and the transverse seat (103C) is fixed on the vertical frame (107); the upper roll shaft (102) is in running fit with the bearing bracket (103A).

5. The film laminator according to claim 2, wherein: the driving mechanism (2) comprises a driving motor (201), a bidirectional worm (202) and a rod seat (203); the driving motor (201) is fixed on the vertical frame (107) through a motor support, an output shaft of the driving motor (201) is connected with the bidirectional worm (202) through a coupler, the middle part of the bidirectional worm (202) is in rotating fit with the rod seat (203), and the rod seat (203) is fixed on the vertical frame (107); the spiral lines of the upper end and the lower end of the bidirectional worm (202) are opposite in rotating direction, and the upper end and the lower end of the bidirectional worm (202) are respectively meshed with and in transmission connection with one worm wheel (106) so as to drive the two worm wheels (106) to rotate in different directions.

6. The film laminator according to claim 1, wherein: the film releasing roller mechanism (3) comprises a film releasing roller body (301), a first roller shaft (302), a film tearing roller body (303), a second roller shaft (304), a side plate (305), a linkage chain wheel (306) and a chain (307); the film placing roller body (301) is fixed in the middle of the first roller shaft (302), two ends of the first roller shaft (302) are respectively in running fit with the lower end of one side plate (305), and the two side plates (305) are relatively fixed at two ends of the rack (5); the film tearing roller body (303) is fixed on a second roller shaft (304), and two ends of the second roller shaft (304) are rotatably matched with the upper ends of the two side plates (305); and the outer ends of the second roller shaft (304) and the first roller shaft (302) are respectively fixed with a linkage chain wheel (306), and the two linkage chain wheels (306) are in transmission connection through a chain (307).

7. The film laminator according to claim 6, wherein: also comprises a tensioning mechanism (6); the tensioning mechanism (6) comprises an arc-shaped top plate (601), a rectangular vertical rod (602), a transverse seat plate (603) and a tensioning spring (604); the arc-shaped top plate (601) is fixed at the top end of the rectangular vertical rod (602); the middle part of the rectangular vertical rod (602) is in sliding fit with the transverse seat plate (603), and the transverse seat plate (603) is fixed on the side plate (305); a tension spring (604) is sleeved on a rectangular vertical rod (602) between the arc-shaped top plate (601) and the transverse seat plate (603); the inner arc surface of the arc-shaped top plate (601) is pressed against the first roll shaft (302).

8. The film laminator according to claim 1, wherein: the device also comprises a plate feeding limiting mechanism (7); the plate feeding limiting mechanism (7) comprises a limiting baffle (701), a horizontal sliding block (702), a bidirectional screw (703), a bearing rod seat (704) and a central rotating wheel (705); two ends of the bidirectional screw rod (703) are respectively and rotatably matched on a bearing rod seat (704), and the two bearing rod seats (704) are relatively fixed at two ends of the bottom surface of the rack (5); the middle part of the bidirectional screw rod (703) is connected with two horizontal sliding blocks (702) which are in relative sliding fit in the horizontal slide way of the rack (5) through thread transmission, the upper ends of the two horizontal sliding blocks (702) are respectively fixedly connected with a limit baffle (701), and the two limit baffles (701) are in relative sliding fit on the top surface of the rack (5); the middle of the bidirectional screw rod (703) is fixedly connected with a central rotating wheel (705).

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