CN215098526U

CN215098526U - Novel film laminating device

Info

Publication number: CN215098526U
Application number: CN202121451051.8U
Authority: CN
Inventors: 赵伟东
Original assignee: Hefei Aite Signs Co ltd
Current assignee: Hefei Aite Signs Co ltd
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2021-12-10
Anticipated expiration: 2031-06-25

Abstract

The application discloses a novel film laminating device, which belongs to the field of film laminating devices and comprises a workbench, a guide assembly and a mounting frame, wherein the guide assembly is arranged on the workbench and used for guiding a PET sheet, the mounting frame is fixedly connected onto the workbench, a film tearing assembly is arranged at one end of the mounting frame, a film laminating assembly is arranged at the other end of the mounting frame, the film tearing assembly comprises a first rotating rod rotatably arranged on the mounting frame, a film collecting roller fixedly sleeved on the first rotating rod and used for collecting an old protective film, and a motor arranged on the mounting frame and used for driving the first rotating rod to rotate; the tectorial membrane subassembly including rotate install in the mounting bracket on second dwang, fixed cover locate on the second dwang be used for unreeling the membrane roller of putting of new protection film. This application has the effect that can tear the membrane and tectorial membrane simultaneously, save process time, guarantee the finished product quality.

Description

Novel film laminating device

Technical Field

The application relates to the technical field of tectorial membrane device, especially relate to a novel tectorial membrane device.

Background

In order to protect the PET sheet from scratching and polluting the surface of the product during the production, transportation, storage or processing, an operator generally uses a film covering device to cover the PET sheet, and the film covering device plays an important role in protecting the PET sheet.

However, in the process of printing the coated PET sheet, the protective film on the surface of the PET sheet may be scratched, and in order to continuously protect the PET sheet and ensure the quality of the finished product, an operator needs to manually tear off the scratched protective film and then coat the film again.

The inventor thinks that the operation of manually coating and then coating the film is more complicated and wastes a long time.

SUMMERY OF THE UTILITY MODEL

In order to be able to tear the membrane while tectorial membrane, save process time, this application provides a novel tectorial membrane device.

The application provides a novel tectorial membrane device adopts following technical scheme:

a novel film laminating device comprises a workbench, a guide assembly and a mounting rack, wherein the guide assembly is arranged on the workbench and used for guiding a PET sheet, the mounting rack is fixedly connected to the workbench, a film tearing assembly is arranged at one end of the mounting rack, a film laminating assembly is arranged at the other end of the mounting rack, the film tearing assembly comprises a first rotating rod rotatably mounted on the mounting rack, a film collecting roller fixedly sleeved on the first rotating rod and used for collecting an old protective film, and a motor arranged on the mounting rack and used for driving the first rotating rod to rotate; the tectorial membrane subassembly including rotate install in the mounting bracket on second dwang, fixed cover locate on the second dwang be used for unreeling the membrane roller of putting of new protection film.

Through adopting above-mentioned technical scheme, operating personnel passes the direction subassembly on the workstation with the PET sheet earlier, and the direction subassembly be provided with and do benefit to the tensioning state who guarantees the PET sheet to inject the position of PET sheet, prevent that the PET sheet from changing at the removal in-process position. Operating personnel twines the protection film that has fish tail on the PET sheet on receiving the membrane roller again, will put new protection film on the membrane roller and bond on the PET sheet, operating personnel starter motor, the first pivot pole of motor drive rotates, first pivot pole makes the old protection film of receipts membrane roller rolling, thereby it moves along the direction subassembly to drive the PET sheet, the PET sheet removes and makes new protection film adhere to on the PET sheet in proper order, thereby realize that one side of PET sheet tears the membrane while the tectorial membrane, the process time has been saved, the quality of product has also been guaranteed.

Preferably, all be provided with spacing subassembly on first dwang, the second dwang, spacing subassembly is located including sliding sleeve respectively be used for on first dwang, the second dwang press from both sides tightly receive the membrane roller, put a plurality of holding rings of membrane roller, wear to locate locating pin on the holding ring, the locating pin with holding ring screw-thread fit, just the locating pin respectively with first dwang, second dwang butt.

Through adopting above-mentioned technical scheme, when operating personnel installation receive the membrane roller or put the membrane roller, operating personnel will receive the membrane roller or put the membrane roller and set up between two holding rings earlier, operating personnel utilizes the holding ring to support tightly to receive the membrane roller or put the membrane roller, then, operating personnel rotates the locating pin, locating pin and first dwang or second dwang butt to the position of fixed holding ring, the setting up of holding ring and locating pin makes things convenient for operating personnel to fix the position of receiving the membrane roller or putting the membrane roller.

Preferably, the mounting groove has all been seted up on the upper surface at workstation both ends, the direction subassembly include fixed connection in the fixed plate of workstation both sides, rotate install in compressing roller on the fixed plate, rotate install in support tight pole on the fixed plate and rotate install in live-rollers on the mounting groove inside wall, the direction subassembly is provided with two sets ofly, two sets of the direction subassembly symmetry sets up in the workstation both ends.

Through adopting above-mentioned technical scheme, the PET sheet passes between live-rollers and the compression roller, and the live-rollers be provided with and do benefit to the frictional force that reduces PET sheet and workstation surface, and the compression roller be provided with do benefit to and prevent that the PET sheet breaks away from the workstation, and the setting of supporting tight pole is favorable to supporting tight new protection film or old protection film to guarantee the tight state of new protection film or old protection film.

Preferably, a clamping block is slidably mounted on the fixing plate, a guide groove for accommodating the clamping block is formed in the upper surface of the fixing plate, the clamping block is in sliding fit with the inner side wall of the guide groove, the pressing roller is rotatably mounted on the clamping block, and a control assembly for driving the clamping block to move in the vertical direction is arranged on the fixing plate.

Through adopting above-mentioned technical scheme, operating personnel starts control assembly, and control assembly makes the fixture block move along the guide way in vertical direction, and the fixture block removes and drives the compression roller and remove to make things convenient for operating personnel to adjust the height of compression roller, make the compression roller adapt to the PET sheet of different thickness.

Preferably, the control assembly comprises a positioning plate fixedly connected to the upper surface of the fixing plate, a fixing sleeve penetrating through the positioning plate and fixedly connected to the positioning plate, a screw rod penetrating through the fixing sleeve and in threaded fit with the fixing sleeve, and a knob fixedly connected to the screw rod, wherein the screw rod penetrates through the clamping block and is rotatably connected to the clamping block.

Through adopting above-mentioned technical scheme, operating personnel rotates the knob, and the knob rotates and drives the lead screw and rotate, and the lead screw rotates and makes the lead screw remove along fixed sleeve's length direction, and the lead screw removes and drives the fixture block removal, and the fixture block removal drives the compression roller and removes.

Preferably, the workstation is close to the constant head tank has been seted up on the surface of first rotation pole, rotate on the inside wall of constant head tank and install first locating lever and second locating lever, first locating lever with the second locating lever sets up side by side, the PET sheet is followed the below of first locating lever is around the top to the second locating lever.

Through adopting above-mentioned technical scheme, the setting up of first locating lever and second locating lever is favorable to further reducing the friction between PET sheet and the workstation on the one hand, and on the other hand is favorable to controlling the tensioning degree of PET sheet for the state of PET sheet tensioning.

Preferably, the dovetail groove has been seted up on the workstation, be provided with on the workstation and compress tightly the subassembly, compress tightly the subassembly including set up in the dovetail block of PET sheet both sides, wear to locate the dovetail block and with dovetail block screw-thread fit's supports tight post, set up on the workstation be used for with dovetail block sliding fit's dovetail, support tight post with the interior bottom surface butt of dovetail, just support tight post with the PET sheet butt.

Through adopting above-mentioned technical scheme, operating personnel removes the tight post that supports of PET sheet both sides for support the side of tight post to support the PET sheet, operating personnel rotates tight post again, makes to support the interior bottom surface that the post supported the dovetail tightly, thereby the position of fixed dovetail piece, support the position of the PET sheet that the setting of tight post is favorable to the restriction, provide the guide effect for the removal of PET sheet.

Preferably, the compressing assembly further comprises a compressing ring sleeved on the abutting column, the compressing ring is in threaded fit with the abutting column, and the compressing ring is abutted to the PET sheet.

Through adopting above-mentioned technical scheme, when operating personnel fixed the forked tail piece, operating personnel rotated the clamp ring to make clamp ring and PET sheet butt, the setting of clamp ring further prevents that the PET sheet breaks away from down the workstation.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the motor drives the first rotating rod to rotate, the first rotating rod enables the film collecting roller to roll the old protective film, so that the PET sheet is driven to move along the guide assembly, the new protective film is sequentially attached to the PET sheet through the movement of the PET sheet, one side of the PET sheet is torn and the film is coated, the working procedure time is saved, and the product quality is also ensured;

2, the PET sheet penetrates through the space between the rotating roller and the pressing roller, the arrangement of the rotating roller is beneficial to reducing the friction force between the PET sheet and the surface of the workbench, the arrangement of the pressing roller is beneficial to preventing the PET sheet from being separated from the workbench, and the arrangement of the abutting rod is beneficial to abutting against a new protective film or an old protective film, so that the tight state of the new protective film or the old protective film is ensured;

3. the control assembly enables the fixture block to move in the vertical direction along the guide groove, and the fixture block moves to drive the pressing roller to move, so that an operator can adjust the height of the pressing roller conveniently, and the pressing roller can adapt to PET sheets with different thicknesses.

Drawings

Fig. 1 is a schematic structural diagram of a novel film covering device according to an embodiment of the present application.

FIG. 2 is a schematic view of the internal structure of the novel film covering device according to the embodiment of the present application.

Fig. 3 is an enlarged schematic view at a in fig. 1.

Description of reference numerals:

1. a work table; 11. mounting grooves; 12. positioning a groove; 13. a first positioning rod; 14. a second positioning rod; 15. a dovetail groove; 16. a mounting frame; 161. a vertical plate; 162. a transverse plate; 2. a guide assembly; 21. a fixing plate; 211. a guide groove; 212. a clamping block; 22. a pressure roller; 23. a tightening rod; 24. a rotating roller; 3. a PET sheet; 31. a new protective film; 32. an old protective film; 4. a film tearing assembly; 41. a first rotating lever; 42. a film collecting roller; 43. a motor; 5. a film covering assembly; 51. a second rotating lever; 52. a film releasing roller; 6. a table; 61. a guide plate; 62. a guide roller; 63. a connecting rod; 64. a disc; 65. a discharge roller; 7. a limiting component; 71. a positioning ring; 72. positioning pins; 8. a control component; 81. positioning a plate; 82. fixing the sleeve; 83. a screw rod; 84. a knob; 9. a compression assembly; 91. a dovetail block; 92. tightly abutting against the column; 93. and a compression ring.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a novel tectorial membrane device. Referring to fig. 1 and 2, the novel film covering device comprises a workbench 1, a guide assembly 2, a PET sheet 3, a film tearing assembly 4 and a film covering assembly 5.

Referring to fig. 1 and 2, the table 1 is rectangular plate-shaped, the table 1 is horizontally disposed on a table 6, and the bottom surface of the table 1 is fixedly connected to a table top. The guide plates 61 are fixedly connected to two ends of the workbench 1, the guide plates 61 are obliquely arranged, the end portions, far away from the workbench 1, of the guide plates 61 are rotatably provided with guide rollers 62, and the length direction of the guide rollers 62 is consistent with the width direction of the workbench 1. A connecting rod 63 is fixedly connected to one table leg of the table 6, the connecting rod 63 is horizontally arranged, a disc 64 is fixed to the end face, away from the table 6, of the connecting rod 63, and the axis of the disc 64 is parallel to the axis of the guide roller 62. An emptying roller 65 is rotatably mounted on the surface of the disc 64 remote from the connecting rod 63, and the axis of the emptying roller 65 coincides with the axis of the disc 64. The placement of the discharge rollers 65 facilitates the placement of the rolled PET sheets 3 by an operator.

Referring to fig. 1 and 2, the mounting frame 16 is arranged on the workbench 1, the mounting frame 16 includes two vertical plates 161 and two horizontal plates 162, the bottom surface of each vertical plate 161 is fixedly connected with the upper surface of the workbench 1, one vertical plate 161 is arranged at one end of the workbench 1, and the other vertical plate 161 is arranged at the other end of the workbench 1. The transverse plate 162 is disposed between the two vertical plates 161, and two ends of the transverse plate 162 are respectively fixedly connected with the vertical plates 161.

Referring to fig. 1 and 2, the film tearing assembly 4 is disposed on a vertical plate 161 close to the discharging roller 65, the film covering assembly 5 is disposed on a vertical plate 161 far away from the discharging roller 65, and the film tearing assembly 4 includes a first rotating rod 41, a film receiving roller 42 and a motor 43. The first rotating lever 41 is rotatably mounted on the vertical plate 161, and the length direction of the first rotating lever 41 coincides with the width direction of the table 1. The motor 43 is mounted on the other surface of the vertical plate 161 away from the first rotating rod 41, and the output shaft of the motor 43 passes through the vertical plate 161 and is fixedly connected with the first rotating rod 41. The film collecting roller 42 is sleeved on the first rotating rod 41, and the axis of the film collecting roller 42 is overlapped with the axis of the first rotating rod 41.

Referring to fig. 1 and 2, the film covering assembly 5 includes a second rotating rod 51 and a film releasing roller 52, the second rotating rod 51 is rotatably mounted on the other vertical plate 161, and the second rotating rod 51 is arranged side by side with the first rotating rod 41. The film releasing roller 52 is sleeved on the second rotating rod 51, and the axis of the film releasing roller 52 is overlapped with the axis of the second rotating rod 51.

Referring to fig. 1 and 2, the first rotating rod 41 and the second rotating rod 51 are both provided with a limiting assembly 7, the limiting assembly 7 includes a positioning ring 71 and a positioning pin 72, the positioning pin 72 is inserted into the positioning ring 71, and the positioning pin 72 is in threaded fit with the positioning ring 71. Two sets of the positioning rings 71 are provided, one set of the positioning rings 71 is sleeved on the first rotating rod 41, the other positioning ring 71 is sleeved on the second rotating rod 51, and each set of the positioning rings 71 includes two positioning rings 71. Two positioning rings 71 provided on the first rotating rod 41 are provided at both ends of the film collecting roller 42, respectively, and positioning pins 72 provided on the first rotating rod 41 abut against the first rotating rod 41. The two positioning rings 71 provided on the second rotating lever 51 are provided at both ends of the film deposition roller 52, respectively, and the positioning pin 72 provided on the second rotating lever 51 abuts against the second rotating lever 51. After the operator sequentially installs the film collecting roller 42, the film releasing roller 52 and the positioning rings 71, the operator rotates the positioning pins 72 to fix the positioning rings 71 at the two ends of the film collecting roller 42 and the two ends of the film releasing roller 52, so as to fix the positions of the film collecting roller 42 and the film releasing roller 52.

Referring to fig. 2 and 3, the guide assembly 2 includes a fixing plate 21, a pressing roller 22, a pressing rod 23, and a rotating roller 24, the fixing plate 21 is rectangular, the fixing plate 21 is vertically disposed, and a bottom surface of the fixing plate 21 is fixedly connected to an upper surface of the worktable 1. A guide groove 211 is formed on the upper surface of the fixing plate 21, an opening of the guide groove 211 is rectangular, and a length direction of the guide groove 211 is identical to a height direction of the fixing plate 21. A latch 212 is disposed on the fixing plate 21, and the latch 212 is slidably engaged with the inner sidewall of the guide groove 211. Two fixing plates 21 are provided in the single guide assembly 2, and the two fixing plates 21 are respectively provided at both sides of the table 1.

Referring to fig. 2 and 3, the fixing plate 21 is provided with the control assembly 8, the control assembly 8 includes a positioning plate 81, a fixing sleeve 82, a screw 83 and a knob 84, the positioning plate 81 is disposed on the fixing plate 21, a bottom surface of the positioning plate 81 is fixedly connected with an upper surface of the fixing plate 21, the fixing sleeve 82 is in a circular cylinder shape, the fixing sleeve 82 vertically penetrates through the positioning plate 81, the fixing sleeve 82 is fixedly connected with the positioning plate 81, and an end portion of the fixing sleeve 82 located on a lower side of the positioning plate 81 is disposed in the guide groove 211. The lead screw 83 is vertically arranged, the lead screw 83 penetrates through the fixing sleeve 82, the lead screw 83 is in threaded fit with the fixing sleeve 82, the bottom end of the lead screw 83 is rotatably connected with the fixture block 212, and the knob 84 is fixedly connected to the top end of the lead screw 83.

Referring to fig. 1 and 2, the length direction of the pinch roller 22 is the same as the length direction of the first rotation lever 41, the pinch roller 22 is disposed between the two latches 212, and the pinch roller 22 is rotatably connected to the latches 212. The upper surface of the workbench 1 is provided with a mounting groove 11, the opening of the mounting groove 11 is rectangular, and the length direction of the mounting groove 11 is consistent with that of the compression roller 22. The mounting grooves 11 are provided with two, and the two mounting grooves 11 are respectively arranged at two ends of the workbench 1. The rotating roller 24 is arranged in the installation groove 11 of the workbench 1, and the rotating roller 24 is rotatably connected with the inner side wall of the installation groove 11. The length direction of the abutting rod 23 is consistent with that of the rotating roller 24, the abutting rod 23 is arranged on the upper side of the rotating roller 24, and the abutting rod 23 is rotatably connected with the inner side wall of the fixing plate 21.

Referring to fig. 2 and 3, two guide assemblies 2 are provided, one guide assembly 2 is disposed at one end of the workbench 1, the other guide assembly 2 is disposed at the other end of the workbench 1, and the two guide assemblies 2 are symmetrically arranged. An operator rotates the knob 84, the knob 84 rotates to drive the screw rod 83 to rotate, so that the screw rod 83 moves in the vertical direction, the screw rod 83 moves to drive the fixture block 212 to move, the fixture block 212 moves to enable the pressing roller 22 to move in the vertical direction, the length of the pressing roller 22 from the PET sheet 3 is controlled by the operator conveniently, and the pressing roller 22 is made to adapt to the PET sheets 3 with different thicknesses.

Referring to fig. 1 and 2, a positioning groove 12 is formed on an end surface of the table 1 near the first rotating rod 41, an opening of the positioning groove 12 is rectangular, and the positioning groove 12 is communicated with the mounting groove 11 near the first rotating rod 41. The worktable 1 is provided with a first positioning rod 13 and a second positioning rod 14, the length direction of the first positioning rod 13 is consistent with the length direction of the first rotating rod 41, and two ends of the first positioning rod 13 are respectively connected with the inner side wall of the positioning groove 12 in a rotating way. The second positioning rod 14 is arranged side by side with the first positioning rod 13, and two ends of the second positioning rod 14 are respectively connected with the inner side wall of the positioning groove 12 in a rotating manner.

Referring to fig. 1 and 2, a dovetail groove 15 is formed in the end surface of the workbench 1 close to the second rotating rod 51, the length direction of the dovetail groove 15 is consistent with the length direction of the mounting groove 11, a pressing assembly 9 is arranged on the workbench 1, the pressing assembly 9 comprises a dovetail block 91, a pressing column 92 and a pressing ring 93, the dovetail block 91 is arranged in the dovetail groove 15 on the workbench 1, and the dovetail block 91 is in sliding fit with the inner side wall of the dovetail groove 15. The two dovetail blocks 91 are provided, and the two dovetail blocks 91 are respectively provided at both ends of the PET sheet 3. The abutting column 92 vertically penetrates through the dovetail block 91, the abutting column 92 is in threaded fit with the dovetail block 91, and the abutting column 92 abuts against the bottom surface of the dovetail groove 15. The pressing ring 93 is sleeved on the abutting column 92, the pressing ring 93 is arranged on the upper side of the dovetail block 91, the pressing ring 93 is in threaded fit with the abutting column 92, and the pressing ring 93 is abutted to the PET sheet 3. The operating personnel removes two dovetail blocks 91 earlier for two support poles 23 respectively with the 3 both sides butt of PET sheet, operating personnel rotates the abutment post again, supports tight post 92 and the interior bottom surface butt of dovetail 15, thereby the position of fixed dovetail 15, further fixes the position of PET sheet 3, operating personnel rotates clamp ring 93 again, makes clamp ring 93 support tight PET sheet 3, thereby prevents that PET sheet 3 from breaking away from workstation 1.

The implementation principle of the novel film covering device in the embodiment of the application is as follows: an operator winds the printed PET sheet 3 on the discharging roller 65, the operator sequentially passes the PET sheet 3 through the upper side of the guide roller 62 close to the discharging roller 65, the lower side of the pressing roller 22 close to the discharging roller 65 and the upper side of the rotating roller 24 close to the discharging roller 65, the operator winds the PET sheet 3 from the upper side of the rotating roller 24 close to the discharging roller 65 to the lower side of the first rotating rod 41, the old protective film 32 on the PET sheet 3 passes through the upper side of the abutting rod 23 close to the discharging roller 65 from the lower side of the first rotating rod 41, and the old protective film 32 is finally wound on the film collecting roller 42. The operator again turns the PET sheet 3 from the lower side of the first rotating lever 41 to the upper side of the second rotating lever 51, and then the operator passes the PET sheet 3 from the upper side of the second rotating lever 51 in the longitudinal direction of the table 1 in order over the upper side of the rotating roller 24 distant from the discharging roller 65, under the pinch roller 22 distant from the discharging roller 65, and over the upper side of the guide roller 62 distant from the discharging roller 65. Wherein, the new protective film 31 wound on the film discharging roller 52 passes through the abutting rod 23 far away from the discharging roller 65 and is wound to the lower side of the pressing roller 22 far away from the discharging roller 65, and finally the new protective film 31 is adhered and fixed with the PET sheet 3. The setting up of direction subassembly 2 is favorable to reducing the friction between PET sheet 3 and the workstation 1 on the one hand to make things convenient for the slip of PET sheet 3, on the other hand direction subassembly 2 be provided with and do benefit to the tensioning state who guarantees PET sheet 3, thereby inject the position of PET sheet 3, prevent that PET sheet 3 from changing at the removal in-process position.

Operator removes the forked tail piece 91 of PET sheet 3 both sides for support post 92 and the 3 butt of PET sheet, operator's rotation is supported the position of the fixed forked tail piece 91 of post 92 tightly, and the rotatory clamp ring 93 of operator makes clamp ring 93 and PET sheet 3 butt. The arrangement of the abutting columns 92 is beneficial to further limiting the position of the PET sheet 3, and the arrangement of the compression ring 93 is beneficial to preventing the PET sheet 3 from being separated from the workbench 1.

An operator starts the motor 43, the motor 43 drives the first rotating rod 41 to rotate, the first rotating rod 41 enables the film collecting roller 42 to collect the old protective film 32, the PET sheet 3 is driven to move along the length direction of the workbench 1, the PET sheet 3 moves to enable the new protective film 31 to be attached to the PET sheet 3 in sequence, one side of the PET sheet 3 is torn and the other side of the PET sheet is coated with the film, the process time is saved, and the product quality is also guaranteed.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a novel tectorial membrane device, include workstation (1), set up in workstation (1) be used for guiding direction subassembly (2) and fixed connection of PET sheet (3) in mounting bracket (16) on workstation (1), its characterized in that: the film tearing assembly (4) is arranged at one end of the mounting frame (16), the film laminating assembly (5) is arranged at the other end of the mounting frame (16), and the film tearing assembly (4) comprises a first rotating rod (41) rotatably mounted on the mounting frame (16), a film collecting roller (42) fixedly sleeved on the first rotating rod (41) and used for collecting an old protective film (32), and a motor (43) arranged on the mounting frame (16) and used for driving the first rotating rod (41) to rotate; tectorial membrane subassembly (5) including rotate install in mounting bracket (16) on second dwang (51), fixed cover locate being used for unreeling on second dwang (51) and unreeling new protection film (31) put membrane roller (52).

2. The novel film covering device as claimed in claim 1, wherein: all be provided with spacing subassembly (7) on first dwang (41), second dwang (51), spacing subassembly (7) are located including sliding sleeve respectively be used for on first dwang (41), second dwang (51) press from both sides tightly receive membrane roller (42), put a plurality of holding rings (71) of membrane roller (52), wear to locate locating pin (72) on holding ring (71), locating pin (72) with holding ring (71) screw-thread fit, just locating pin (72) respectively with first dwang (41), second dwang (51) butt.

3. The novel film covering device as claimed in claim 1, wherein: mounting groove (11) have all been seted up on the upper surface at workstation (1) both ends, direction subassembly (2) including fixed connection in fixed plate (21), the rotation of workstation (1) both sides install in compress tightly roller (22), rotation on fixed plate (21) install in support tight pole (23) and rotation on fixed plate (21) install in live-rollers (24) on mounting groove (11) inside wall, direction subassembly (2) are provided with two sets ofly, and are two sets of direction subassembly (2) symmetry sets up in workstation (1) both ends.

4. The novel film covering device according to claim 3, wherein: a clamping block (212) is slidably mounted on the fixing plate (21), a guide groove (211) used for accommodating the clamping block (212) is formed in the upper surface of the fixing plate (21), the clamping block (212) is in sliding fit with the inner side wall of the guide groove (211), the pressing roller (22) is rotatably mounted on the clamping block (212), and a control assembly (8) used for driving the clamping block (212) to move in the vertical direction is arranged on the fixing plate (21).

5. The novel film covering device as claimed in claim 4, wherein: control assembly (8) including fixed connection in locating plate (81) of fixed plate (21) upper surface, wear to locate locating plate (81) and with locating plate (81) fixed connection's fixed sleeve (82) and wear to locate in fixed sleeve (82) and with fixed sleeve (82) screw-thread fit's lead screw (83) and fixed connection in knob (84) on lead screw (83), lead screw (83) wear to locate in fixture block (212) and with fixture block (212) rotate and are connected.

6. The novel film covering device as claimed in claim 1, wherein: workstation (1) is close to constant head tank (12) have been seted up on the surface of first rotation pole (41), rotate on the inside wall of constant head tank (12) and install first locating lever (13) and second locating lever (14), first locating lever (13) with second locating lever (14) set up side by side, PET sheet (3) are followed the below of first locating lever (13) is around the top to second locating lever (14).

7. The novel film covering device as claimed in claim 1, wherein: seted up dovetail (15) on workstation (1), be provided with on workstation (1) and compress tightly subassembly (9), compress tightly subassembly (9) including set up in dovetail (91) of PET sheet (3) both sides, wear to locate dovetail (91) and with dovetail (91) screw-thread fit's support tight post (92), seted up on workstation (1) be used for with dovetail (91) sliding fit's dovetail (15), support tight post (92) with the interior bottom surface butt of dovetail (15), just support tight post (92) with PET sheet (3) butt.

8. The novel film covering device as claimed in claim 7, wherein: the pressing assembly (9) further comprises a pressing ring (93) sleeved on the abutting column (92), the pressing ring (93) is in threaded fit with the abutting column (92), and the pressing ring (93) is abutted to the PET sheet (3).