CN214521950U

CN214521950U - Leveling device is used in production of APET film

Info

Publication number: CN214521950U
Application number: CN202023309295.0U
Authority: CN
Inventors: 刘斌辉; 练士豪
Original assignee: Wuxi Aokete Packaging Material Co ltd
Current assignee: Wuxi Aokete Packaging Material Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-10-29
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses a leveling device is used in APET film production, concretely relates to APET film production technical field, including base and shell, four corners difference fixedly connected with footing of base bottom, the top fixedly connected with shell of base, the both ends of the inside one side of shell are provided with two sets of first fixed columns respectively, top swing joint between the first fixed column has the leveling roller. The utility model discloses a when APET film is leading-in to the conveying roller that the support column top set up after the flattening, in the limit structure that support column one end set up, according to the concrete width of the APET film of producing, the swivel through rotating outer seat one end makes the movable rod of threaded connection with it outwards stretch out in the endotheca with the distance of APET film production width looks adaptation, it is spacing to carry out the transportation process to the both sides of APET film to make the distance between the limiting plate both sides, the spacing purpose of both sides in convenient adjustable to the film transportation process has been reached.

Description

Leveling device is used in production of APET film

Technical Field

The utility model relates to a APET film production technical field specifically is a leveling device is used in APET film production.

Background

The APET film is a polyvinyl chloride film made of PVC amorphous materials, the fatigue resistance, the friction resistance and the size stability of the finished product APET film are good, the APET film is widely applied to outer packages in industries such as cosmetics, toys and electronics, and the like, and the problems of unevenness, bubbles and the like can occur on the surface when the APET film is produced, so that a leveling device is needed to solve the problems when the APET film is produced.

In the process of implementing the present invention, the inventor finds that at least the following problems exist in the prior art and are not solved:

(1) the traditional leveling device for APET film production is inconvenient for adjusting and leveling APET films with different thicknesses in the using process;

(2) the traditional leveling device for APET film production does not have a structure which is convenient to use and adjustable and limits two sides of a film in the film conveying process in the conveying process of the APET film;

(3) the leveling device for producing the APET film does not have a measure for rolling the APET film, which is convenient to use and high in rolling efficiency.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a leveling device is used in APET film production to propose the problem that is not convenient for adjust the flattening to the APET film of different thickness in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a leveling device for APET film production comprises a base and a shell, wherein four corners of the bottom end of the base are respectively and fixedly connected with bottom feet, the top end of the base is fixedly connected with the shell, two groups of first fixing columns are respectively arranged at two ends of one side in the shell, a leveling roller is movably connected at the top end between the first fixing columns, a second driving motor is respectively and fixedly connected at the top end of one end of each first fixing column, an output shaft of the second driving motor is respectively and fixedly connected with one end of the leveling roller through a coupler, second fixing columns are respectively and fixedly connected at two ends of the top end in the shell, a second fixing column is movably connected at the bottom end between the second fixing columns, one end of each second fixing column is fixedly connected with a second driving motor, and an output shaft of the second driving motor is fixedly connected with one end of the fixing roller through a coupler, a fixed vertical plate is vertically and fixedly connected to one side of the top end inside the shell, the bottom end of the fixed vertical plate is fixedly connected with the bottom end inside the shell, supporting columns are fixedly connected to two ends of one side of the bottom end inside the shell respectively, a conveying roller is movably connected between the top ends of the supporting columns, a limiting structure is arranged between one ends of the supporting columns, a winding mechanism is arranged on one side of the bottom end inside the shell, and an adjusting mechanism is arranged on the other side of the bottom end inside the shell;

adjustment mechanism includes the frame, frame fixed connection is at the opposite side of the inside bottom of shell, both ends difference swing joint between the inside both sides of frame has the screw rod, the outside both sides of screw rod are provided with the swivel nut respectively, the inside of the bottom of swivel nut is provided with the sliding sleeve respectively, both ends difference fixedly connected with horizontal pole between the inside both sides bottom of frame, the horizontal pole runs through the inside of sliding sleeve respectively, one side of screw rod runs through outside one side of frame and fixedly connected with sprocket respectively, the outside of sprocket is provided with drive chain, one side fixedly connected with servo motor of frame, servo motor's output shaft passes through one side fixed connection of shaft coupling and sprocket.

Preferably, opposite external threads are arranged on two sides of the outer portion of the screw rod, internal threads matched with the external threads are arranged inside the threaded sleeve, threaded connection is formed between the threaded sleeve and the screw rod, the top end of the threaded sleeve is fixedly connected with the bottom end of the first fixing column respectively, and the chain wheel is meshed with the transmission chain respectively.

Preferably, limit structure comprises limiting plate, movable rod, swivel, outer seat, endotheca and stop block, outer seat fixed connection respectively is in the inside on support column top, the inside of outer seat is provided with the endotheca respectively, the one end of outer seat swing joint respectively has the swivel, the inside of endotheca is provided with the movable rod respectively, the inside and the fixedly connected with limiting plate of swivel are run through to the one end of movable rod, the other end difference fixedly connected with stopper of movable rod.

Preferably, the outside of movable rod is provided with the external screw thread, the inside of swivel is provided with the internal thread with external screw thread matched with, the limiting plate is the symmetric distribution about the horizontal center line of base respectively.

Preferably, the winding mechanism comprises a fixed plate, a first driving motor, an inner groove, a sliding block, a sliding groove, a movable shaft, a winding drum, a second compression spring, an outer sleeve, a connecting rod, a reserved groove and a bottom block, the bottom block is fixedly connected to one side of the bottom end in the base, one end of the top end of the bottom block is fixedly connected with the fixed plate, one end of the fixed plate is fixedly connected with the first driving motor, the other end of the fixed plate is movably connected with the movable shaft, an output shaft of the first driving motor is fixedly connected with one end of the movable shaft through a coupler, the winding drum is arranged outside the movable shaft, the inner grooves are respectively and fixedly connected to the inner parts of the middle positions of the two sides of the movable shaft, the second compression springs are respectively and fixedly connected to the inner parts of the inner grooves, the sliding block is respectively and fixedly connected to the other side of the second compression spring, the sliding grooves are respectively arranged at the middle positions of the two sides in the winding drum, the inside fixedly connected with provided groove of the bottom block top other end, the inside one end of provided groove articulates there is the connecting rod, the top fixedly connected with overcoat of connecting rod, the overcoat nestification is in the outside of loose axle other end.

Preferably, the outer dimension of the sliding block is smaller than the inner dimension of the sliding groove and the inner groove, the sliding block, the sliding groove and the inner groove are in sliding connection, and the outer diameter of the movable shaft is smaller than the inner diameter of the outer sleeve.

Compared with the prior art, the beneficial effects of the utility model are that: the leveling device for APET film production not only realizes the convenience of adjusting and leveling APET films with different thicknesses, realizes the convenience of adjusting and limiting the two sides in the film conveying process, but also realizes the rolling and collection of the APET films with convenient use and high rolling efficiency;

(1) when the APET film is leveled, the APET film produced by the equipment is guided into the leveling roller in the shell through one side of the shell and passes through the bottom end of the fixed roller, the two sets of leveling rollers at the top end of the first fixed column and the fixed roller at the bottom end of the second fixed column are used for leveling the APET film, when the APET films with different thicknesses are leveled, in the adjusting mechanism arranged at the other side of the bottom end in the shell, a servo motor is started, an output shaft of the servo motor drives a set of chain wheels at one side of the outer frame to rotate through a coupler, the chain wheels rotate to drive the screw rods movably connected in the outer frame to rotate, one set of chain wheels rotate to drive the other set of chain wheels and the screw rods which are meshed with the chain wheels to rotate through a transmission chain, the screw rods simultaneously rotate to drive screw sleeves which are in threaded connection at two outer sides of the screw rods to rotate, and the leveling rollers between the first fixed columns at the top ends of the screw rods move inwards or outwards simultaneously, the leveling distances between the leveling rollers at the two sides of the bottom end of the fixed roller and the fixed roller are flexibly adjusted according to the thicknesses of different APET films, so that the leveling adaptability of the different APET films is better, and the purpose of conveniently adjusting and leveling the APET films with different thicknesses is achieved;

(2) by arranging the limiting plate, the movable rod, the rotary ring, the outer seat, the inner sleeve and the limiting block, when the APET film is guided into the conveying roller arranged at the top end of the supporting column after being leveled, in the limiting structure arranged at one end of the supporting column, according to the specific width of the produced APET film, the rotary ring at one end of the outer seat is rotated to enable the movable rod in threaded connection with the rotary ring to extend outwards in the inner sleeve by a distance matched with the production width of the APET film, so that the distance between two sides of the limiting plate limits two sides of the APET film in the conveying process, and the purpose of conveniently and adjustably limiting two sides of the APET film in the conveying process is achieved;

(3) after the leveling processing is carried out, the processed APET film is rolled and stored, in a rolling mechanism arranged on one side of the top end of a base, a switch of a first driving motor is started, the first driving motor is started to drive a movable shaft to rotate through a coupler, the movable shaft drives an external winding drum to rotate to roll and collect the processed APET film, after the current winding drum is fully wound outside, the outer sleeve is firstly turned over from the other end of the movable shaft by using a connecting rod hinged at one end inside the reserved groove, the movable shaft uses the sliding block and a second compression spring inside the inner groove to pull the winding drum in the rear end direction by force, at the moment, the sliding chutes in the inner walls on two sides inside the winding drum press the sliding block into the inner groove, and then the fully wound winding drum is pulled out from the outside of the movable shaft to be replaced, the purpose of rolling and collecting the APET film, which is convenient to use and high in rolling efficiency, is achieved.

Drawings

Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;

FIG. 2 is an enlarged front view of a partial section of the adjusting mechanism of the present invention;

FIG. 3 is an enlarged schematic view of the overlooking partial section of the adjusting mechanism of the present invention;

FIG. 4 is a schematic view of the side view of the limiting structure of the present invention showing an enlarged partial cross-section;

FIG. 5 is an enlarged schematic view of the overlooking partial section of the winding mechanism of the present invention;

fig. 6 is the utility model discloses a winding mechanism looks sideways at local section and enlarges the schematic diagram.

In the figure: 1. footing; 2. a base; 3. a housing; 4. a leveling roller; 5. a first fixed column; 6. a second fixed column; 7. a fixed roller; 8. a conveying roller; 9. a limiting structure; 901. a limiting plate; 902. a movable rod; 903. rotating the ring; 904. an outer seat; 905. an inner sleeve; 906. a limiting block; 10. a support pillar; 11. a winding mechanism; 1101. a fixing plate; 1102. a first drive motor; 1103. an inner tank; 1104. a slider; 1105. a chute; 1106. a movable shaft; 1107. a reel; 1108. a second compression spring; 1109. a jacket; 1110. a connecting rod; 1111. reserving a groove; 1112. a bottom block; 12. fixing the vertical plate; 13. a second drive motor; 14. a servo motor; 15. an outer frame; 16. a threaded sleeve; 17. a screw; 18. a sliding sleeve; 19. a cross bar; 20. a drive chain; 21. and a sprocket.

Detailed Description

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

Example 1: referring to fig. 1-6, a leveling device for APET film production comprises a base 2 and a housing 3, wherein four corners of the bottom end of the base 2 are respectively and fixedly connected with a footing 1, the top end of the base 2 is fixedly connected with the housing 3, two groups of first fixing columns 5 are respectively arranged at two ends of one side inside the housing 3, a leveling roller 4 is movably connected at the top end between the first fixing columns 5, a second driving motor 13 is respectively and fixedly connected at the top end of one end of each first fixing column 5, an output shaft of the second driving motor 13 is respectively and fixedly connected with one end of the leveling roller 4 through a coupling, a second fixing column 6 is respectively and fixedly connected at two ends of the top end inside the housing 3, a second fixing column 6 is movably connected at the bottom end between the second fixing columns 6, a second driving motor 13 is fixedly connected at one end of the second fixing column 6, the model of the second driving motor 13 can be Y90S-2, an output shaft of a second driving motor 13 is fixedly connected with one end of the fixed roller 7 through a coupler, one side of the top end inside the shell 3 is vertically and fixedly connected with a fixed vertical plate 12, the bottom end of the fixed vertical plate 12 is fixedly connected with the bottom end inside the shell 3, two ends of one side of the bottom end inside the shell 3 are respectively and fixedly connected with supporting columns 10, conveying rollers 8 are movably connected between the top ends of the supporting columns 10, a limiting structure 9 is arranged between one ends of the supporting columns 10, one side of the bottom end inside the shell 3 is provided with a winding mechanism 11, and the other side of the bottom end inside the shell 3 is provided with an adjusting mechanism;

referring to fig. 1-6, a leveling device for APET film production further comprises an adjusting mechanism, the adjusting mechanism comprises an outer frame 15, the outer frame 15 is fixedly connected to the other side of the bottom end inside the housing 3, two ends between two sides inside the outer frame 15 are respectively and movably connected with a screw 17, two sides outside the screw 17 are respectively provided with a threaded sleeve 16, the inside of the bottom end of the threaded sleeve 16 is respectively provided with a sliding sleeve 18, two ends between two sides of the bottom end inside the outer frame 15 are respectively and fixedly connected with a cross rod 19, the cross rods 19 respectively penetrate through the inside of the sliding sleeves 18, one side of the screw 17 respectively penetrates through one side outside the outer frame 15 and is fixedly connected with a chain wheel 21, the outside of the chain wheel 21 is provided with a transmission chain 20, one side of the outer frame 15 is fixedly connected with a servo motor 14, the type of the servo motor 14 can be ASD-A2, and an output shaft of the servo motor 14 is fixedly connected with one side of the chain wheel 21 through a coupler;

opposite external threads are arranged on two sides of the outer portion of the screw rod 17, internal threads matched with the external threads are arranged inside the threaded sleeve 16, threaded connection is formed between the threaded sleeve 16 and the screw rod 17, the top end of the threaded sleeve 16 is fixedly connected with the bottom end of the first fixing column 5 respectively, and the chain wheel 21 is meshed with the transmission chain 20 respectively;

specifically, as shown in fig. 1, 2 and 3, when the APET film is leveled, the APET film produced by the apparatus is guided to the leveling roller 4 inside the housing 3 through one side of the housing 3 and passes through the bottom end of the fixing roller 7, the APET film is leveled by the two sets of leveling rollers 4 at the top end of the first fixing column 5 and the fixing roller 7 at the bottom end of the second fixing column 6, when the APET film with different thickness is leveled, in the adjusting mechanism arranged at the other side of the bottom end inside the housing 3, by starting the servo motor 14, the output shaft of the servo motor 14 drives the set of chain wheels 21 at one side of the outer frame 15 to rotate through the shaft coupling, the chain wheels 21 drive the screw 17 movably connected inside the outer frame 15 to rotate, the set of chain wheels 21 drive the other set of chain wheels 21 and the screw 17 meshed with the chain wheels 20 to rotate, the screw 17 simultaneously drive the turnbuckles 16 connected with the threads at the two sides outside the screw 17 to rotate, carry out simultaneously inside or outside removal with flattening roller 4 between the fixed first fixed column 5 in top between screw rod 17, carry out nimble adjustment according to the thickness of different APET film with flattening roller 4 and the fixed roll 7 of fixed roll 7 bottom both sides apart from, the flattening adaptability to different APET films is better, has reached the purpose of being convenient for adjust the flattening to the APET film of different thickness.

Example 2: the limiting structure 9 is composed of a limiting plate 901, a movable rod 902, a rotating ring 903, an outer seat 904, an inner sleeve 905 and a limiting block 906, the outer seat 904 is respectively and fixedly connected with the inside of the top end of the supporting column 10, the inner sleeve 905 is respectively arranged inside the outer seat 904, one end of the outer seat 904 is respectively and movably connected with the rotating ring 903, the movable rod 902 is respectively arranged inside the inner sleeve 905, one end of the movable rod 902 penetrates through the inside of the rotating ring 903 and is fixedly connected with the limiting plate 901, and the other end of the movable rod 902 is respectively and fixedly connected with the limiting block 906;

the outer part of the movable rod 902 is provided with an external thread, the inner part of the rotating ring 903 is provided with an internal thread matched with the external thread, and the limiting plates 901 are respectively distributed symmetrically about the horizontal center line of the base 2;

specifically, as shown in fig. 1 and fig. 4, when the APET film is guided into the conveying roller 8 arranged at the top end of the supporting column 10 after being leveled, in the limiting structure 9 arranged at one end of the supporting column 10, according to the specific width of the produced APET film, the rotating ring 903 at one end of the outer base 904 is rotated to enable the movable rod 902 in threaded connection with the rotating ring to extend outwards in the inner sleeve 905 by a distance matched with the production width of the APET film, so that the distance between two sides of the limiting plate 901 limits two sides of the APET film in the conveying process, and the purpose of conveniently and adjustably limiting the two sides of the film in the conveying process is achieved.

Example 3: the winding mechanism 11 comprises a fixing plate 1101, a first driving motor 1102, an inner groove 1103, a sliding block 1104, a sliding groove 1105, a movable shaft 1106, a winding drum 1107, a second compression spring 1108, an outer sleeve 1109, a connecting rod 1110, a reserved groove 1111 and a bottom block 1112, wherein the bottom block 1112 is fixedly connected to one side of the bottom end in the base 2, one end of the top end of the bottom block 1112 is fixedly connected with the fixing plate 1101, one end of the fixing plate 1101 is fixedly connected with the first driving motor 1102, the type of the first driving motor 1102 can be ACM, the other end of the fixing plate 1101 is movably connected with the movable shaft 1106, the output shaft of the first driving motor 1102 is fixedly connected with one end of the movable shaft 1106 through a coupling, the winding drum 1107 is arranged outside the movable shaft 1106, the inner grooves 1103 are fixedly connected inside the middle positions of two sides of the movable shaft 1106 respectively, the second compression springs 1108 are fixedly connected inside the inner grooves 1103 respectively, and the other sides of the second compression springs 1108 are fixedly connected with the sliding block 1104 respectively, the middle positions of two sides inside the winding drum 1107 are respectively provided with a sliding groove 1105, the inside of the other end of the top end of the bottom block 1112 is fixedly connected with a reserved groove 1111, one end inside the reserved groove 1111 is hinged with a connecting rod 1110, the top end of the connecting rod 1110 is fixedly connected with an outer sleeve 1109, and the outer sleeve 1109 is nested outside the other end of the movable shaft 1106;

the outer dimension of the sliding block 1104 is smaller than the inner dimensions of the sliding groove 1105 and the inner groove 1103, the sliding block 1104 and the sliding groove 1105 and the inner groove 1103 form sliding connection respectively, and the outer diameter of the movable shaft 1106 is smaller than the inner diameter of the outer sleeve 1109;

specifically, as shown in fig. 1, 5 and 6, after leveling processing is performed, the processed APET film is wound and stored, in the winding mechanism 11 disposed on one side of the top end of the base 2, by starting the switch of the first driving motor 1102, the first driving motor 1102 is started to drive the movable shaft 1106 to rotate through the coupling, the movable shaft 1106 drives the external winding drum 1107 to rotate to wind and collect the processed APET film, after the external of the current winding drum 1107 is fully wound, the outer sleeve 1109 is firstly turned over from the other end of the movable shaft 1106 through the connecting rod 1110 hinged at one end inside the reserved groove 1111, the movable shaft 1106 utilizes the slider 1104 and the second compression spring 1108 inside the internal groove 1103 to pull the winding drum 1107 in the direction of the rear end, at this time, the sliding chutes 1104 in the inner walls at both sides inside the winding drum 1107 press the slider 1104 into the internal groove 1103, and then the fully wound winding drum 1107 is pulled out from the external of the movable shaft 1106 for replacement, the purpose of rolling and collecting the APET film, which is convenient to use and high in rolling efficiency, is achieved.

The working principle is as follows: when the utility model is used, firstly, when the APET film is leveled, the APET film produced by the equipment is guided into the leveling roller 4 in the shell 3 through one side of the shell 3 and passes through the bottom end of the fixed roller 7, the APET film is leveled by the two sets of leveling rollers 4 at the top end of the first fixed column 5 and the fixed roller 7 at the bottom end of the second fixed column 6, when the APET films with different thicknesses are leveled, in the adjusting mechanism arranged at the other side of the bottom end in the shell 3, the servo motor 14 is started, the output shaft of the servo motor 14 drives one set of chain wheel 21 at one side of the outer frame 15 to rotate through the shaft coupling, the chain wheel 21 rotates to drive the screw 17 movably connected in the outer frame 15 to rotate, one set of chain wheel 21 rotates to drive the other set of chain wheel 21 meshed with the chain wheel through the transmission chain 20 and the screw 17 to rotate, the screw 17 simultaneously rotates to drive the screw sleeves 16 which are in threaded connection with the two outer sides of the screw 17 to rotate, carry out simultaneously inside or outside removal with flattening roller 4 between the fixed first fixed column 5 in top between screw rod 17, carry out nimble adjustment according to the thickness of different APET film with flattening roller 4 and the fixed roll 7 of fixed roll 7 bottom both sides apart from, the flattening adaptability to different APET films is better, has reached the purpose of being convenient for adjust the flattening to the APET film of different thickness.

Afterwards, when the APET film is guided into the conveying roller 8 arranged at the top end of the supporting column 10 after being leveled, in the limiting structure 9 arranged at one end of the supporting column 10, according to the specific width of the produced APET film, the rotating ring 903 at one end of the outer seat 904 is rotated to enable the movable rod 902 in threaded connection with the outer seat 904 to extend outwards in the inner sleeve 905 by a distance matched with the production width of the APET film, so that the distance between two sides of the limiting plate 901 is limited in the conveying process of the two sides of the APET film, and the purpose of conveniently and adjustably limiting the two sides in the conveying process of the film is achieved.

Finally, after leveling processing, the processed APET film is rolled and stored, in the winding mechanism 11 arranged on one side of the top end of the base 2, by starting the switch of the first driving motor 1102, the first driving motor 1102 is started to drive the movable shaft 1106 to rotate through the coupler, the movable shaft 1106 drives the external winding drum 1107 to rotate to wind and collect the processed APET film, after the outside of the current reel 1107 is fully wound, firstly, the outer sleeve 1109 is turned over from the other end of the movable shaft 1106 by the connecting rod 1110 hinged to one end inside the reserved groove 1111, the movable shaft 1106 is pulled towards the rear end by force by the slide block 1104 and the second compression spring 1108 inside the inner groove 1103, at the moment, the reel 1107 fully wound is pulled out from the outside of the movable shaft 1106 and replaced after the slide block 1104 is pressed into the inner groove 1103 by the sliding grooves 1105 in the inner walls of the two sides inside the reel 1107, and the purpose of winding and collecting APET film, which is convenient to use and high in winding efficiency, is achieved.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a leveling device is used in APET film production, includes base (2) and shell (3), its characterized in that: four corners of the bottom end of the base (2) are respectively and fixedly connected with a footing (1), the top end of the base (2) is fixedly connected with a shell (3), two groups of first fixing columns (5) are respectively arranged at two ends of one side in the shell (3), a leveling roller (4) is movably connected at the top end between the first fixing columns (5), a second driving motor (13) is respectively and fixedly connected at the top end of one end of each first fixing column (5), an output shaft of the second driving motor (13) is respectively and fixedly connected with one end of the leveling roller (4) through a coupler, second fixing columns (6) are respectively and fixedly connected at two ends of the top end in the shell (3), second fixing columns (6) are movably connected at the bottom end between the second fixing columns (6), and a second driving motor (13) is fixedly connected at one end of each second fixing column (6), an output shaft of the second driving motor (13) is fixedly connected with one end of the fixed roller (7) through a coupler, one side of the top end inside the shell (3) is vertically and fixedly connected with a fixed vertical plate (12), the bottom end of the fixed vertical plate (12) is fixedly connected with the bottom end inside the shell (3), two ends of one side of the bottom end inside the shell (3) are respectively and fixedly connected with supporting columns (10), conveying rollers (8) are movably connected between the top ends of the supporting columns (10), a limiting structure (9) is arranged between one ends of the supporting columns (10), one side of the bottom end inside the shell (3) is provided with a winding mechanism (11), and the other side of the bottom end inside the shell (3) is provided with an adjusting mechanism;

the adjusting mechanism comprises an outer frame (15), the outer frame (15) is fixedly connected with the other side of the bottom end in the shell (3), two ends between two sides of the inner part of the outer frame (15) are respectively and movably connected with a screw rod (17), both sides of the outside of the screw rod (17) are respectively provided with a threaded sleeve (16), the inside of the bottom end of the threaded sleeve (16) is respectively provided with a sliding sleeve (18), two ends between the bottom ends of the two sides in the outer frame (15) are respectively and fixedly connected with a cross bar (19), the cross rods (19) respectively penetrate through the inner parts of the sliding sleeves (18), one side of the screw rod (17) respectively penetrates through one side of the outer part of the outer frame (15) and is fixedly connected with a chain wheel (21), a transmission chain (20) is arranged outside the chain wheel (21), one side of the outer frame (15) is fixedly connected with a servo motor (14), an output shaft of the servo motor (14) is fixedly connected with one side of the chain wheel (21) through a coupler.

2. The flattening device for APET film production according to claim 1, characterized in that: opposite external threads are arranged on two sides of the outer portion of the screw rod (17), internal threads matched with the external threads are arranged inside the threaded sleeve (16), the threaded sleeve (16) is in threaded connection with the screw rod (17), the top end of the threaded sleeve (16) is fixedly connected with the bottom end of the first fixing column (5), and the chain wheel (21) is meshed with the transmission chain (20) respectively.

3. The flattening device for APET film production according to claim 1, characterized in that: limiting structure (9) comprise limiting plate (901), movable rod (902), swivel (903), outer seat (904), endotheca (905) and stopper (906), outer seat (904) fixed connection respectively is in the inside on support column (10) top, the inside of outer seat (904) is provided with endotheca (905) respectively, the one end difference swing joint of outer seat (904) has swivel (903), the inside of endotheca (905) is provided with movable rod (902) respectively, the inside and the fixedly connected with limiting plate (901) of swivel (903) are run through to the one end of movable rod (902), the other end difference fixedly connected with stopper (906) of movable rod (902).

4. The flattening device for APET film production according to claim 3, characterized in that: the outer portion of the movable rod (902) is provided with external threads, the inner portion of the rotating ring (903) is provided with internal threads matched with the external threads, and the limiting plates (901) are symmetrically distributed around the horizontal center line of the base (2).

5. The flattening device for APET film production according to claim 1, characterized in that: the winding mechanism (11) consists of a fixing plate (1101), a first driving motor (1102), an inner groove (1103), a sliding block (1104), a sliding groove (1105), a movable shaft (1106), a winding drum (1107), a second compression spring (1108), an outer sleeve (1109), a connecting rod (1110), a reserved groove (1111) and a bottom block (1112), wherein the bottom block (1112) is fixedly connected to one side of the bottom end inside the base (2), one end of the top end of the bottom block (1112) is fixedly connected with the fixing plate (1101), one end of the fixing plate (1101) is fixedly connected with the first driving motor (1102), the other end of the fixing plate (1101) is movably connected with the movable shaft (1106), an output shaft of the first driving motor (1102) is fixedly connected with one end of the movable shaft (1106) through a coupler, the winding drum (1107) is arranged outside the movable shaft (1106), the inner grooves (1103) are respectively and fixedly connected to the insides of the middle positions of two sides of the movable shaft (1106), the inside difference fixedly connected with second compression spring (1108) of inside groove (1103), the opposite side difference fixedly connected with slider (1104) of second compression spring (1108), the intermediate position department of the inside both sides of reel (1107) is provided with spout (1105) respectively, inside fixedly connected with provided groove (1111) of bottom block (1112) top other end, the inside one end of provided groove (1111) articulates there is connecting rod (1110), the top fixedly connected with overcoat (1109) of connecting rod (1110), overcoat (1109) nestification is in the outside of loose axle (1106) other end.

6. The flattening device for APET film production according to claim 5, characterized in that: the outer dimension of the sliding block (1104) is smaller than the inner dimensions of the sliding groove (1105) and the inner groove (1103), the sliding block (1104) and the sliding groove (1105) and the inner groove (1103) are in sliding connection, and the outer diameter of the movable shaft (1106) is smaller than the inner diameter of the outer sleeve (1109).