CN109720619B

CN109720619B - Tray winding machine for food packaging

Info

Publication number: CN109720619B
Application number: CN201910107861.2A
Authority: CN
Inventors: 张会连
Original assignee: Shaoxing Popular Science Weaving Co ltd
Current assignee: Shaoxing Popular Science Weaving Co ltd
Priority date: 2019-02-02
Filing date: 2019-02-02
Publication date: 2020-12-22
Anticipated expiration: 2039-02-02
Also published as: CN109720619A

Abstract

The invention discloses a food packaging tray winding machine which comprises a supporting frame, wherein a mounting groove is formed in the right side of the bottom of the inner wall of the supporting frame, a first driving motor is arranged at the bottom of the inner wall of the mounting groove, a driving rotating shaft is fixedly connected to an output shaft of the first driving motor, and the top of the driving rotating shaft penetrates through the mounting groove and extends to the outside of the mounting groove to be fixedly connected with a placing tray. According to the invention, the threaded rod, the supporting threaded sleeve, the supporting sliding block, the supporting plate, the supporting sliding sleeve, the electric push rod, the blade, the limiting sliding sleeve and the adjusting threaded sleeve are mutually matched, so that the tray winding machine for food packaging is convenient to use, on one hand, the winding height can be accurately controlled by adjusting the adjustable threaded sleeve, the difficulty in controlling the winding height is reduced, on the other hand, the winding film can be cut off at a position close to the winding bundle, the winding film is prevented from contacting with a mechanical part, and unnecessary troubles brought to operators are avoided.

Description

Tray winding machine for food packaging

Technical Field

The invention relates to the technical field of food packaging equipment, in particular to a tray winding machine for food packaging.

Background

The food package is a component of food commodity, one of the main projects in food industry engineering, it protects food, prevents the damage of biological, chemical and physical external factors in the process of food circulation from factory to consumer, it also has the function of keeping the stable quality of food, it not only facilitates the food consumption, but also shows the food appearance, so as to attract consumption, it has value beyond material cost, therefore, the food packaging process is also an indiscriminate part in food manufacturing system engineering.

Winding machine (winding packagine machine), the wide use is in the collection dress flow of products such as foreign trade export, food and beverage, plastic chemical industry, glass pottery, electromechanical foundry goods, can prevent the damage of goods at handling, and play dustproof, dampproofing and the effect of keeping a public place clean, but the current winding machine for food packaging is inconvenient to be used, need control the winding height by manual operation experience on the one hand, on the other hand disconnected membrane department is too far away from the winding membrane bundle, easily cause the winding membrane to glue with other mechanical parts, it is troublesome to have increased for operating personnel.

Many winding machines are designed into horizontal type, when food can not be put transversely, actual need can not be satisfied, and when the packing height of food is higher than people's operating height, need utilize auxiliary assembly such as ladder, very inconvenient.

Disclosure of Invention

The invention aims to provide a food packaging tray winding machine which has the advantage of convenience in use and solves the problem that the existing food packaging tray winding machine is inconvenient to use.

In order to achieve the purpose, the invention provides the following technical scheme: a tray winding machine for food packaging comprises a supporting frame, wherein a mounting groove is formed in the right side of the bottom of the inner wall of the supporting frame, a first driving motor is arranged at the bottom of the inner wall of the mounting groove, a driving rotating shaft is fixedly connected to an output shaft of the first driving motor, the top of the driving rotating shaft penetrates through the mounting groove and extends to the outside of the mounting groove and is fixedly connected with a placing plate, rollers are fixedly connected to the left side and the right side of the bottom of the placing plate through supporting blocks, the bottom of each roller is mutually contacted with the bottom of the inner wall of the supporting frame, an air cylinder is arranged at the position, corresponding to the placing plate, of the top of the supporting frame, the bottom of the air cylinder penetrates through the supporting frame and extends to the inside of the supporting frame, a connecting bearing is fixedly connected to the surface of the air cylinder and is positioned in the supporting frame, a pressing plate, a threaded rod is fixedly connected to an output shaft of the second driving motor, the bottom of the threaded rod penetrates through the supporting frame and extends into the supporting frame, a supporting threaded sleeve is connected to the surface of the threaded rod and is positioned in the supporting frame through threads, a supporting sliding block is fixedly connected to the left side of the supporting threaded sleeve, a supporting sliding groove is formed in the left side of the inner wall of the supporting frame corresponding to the position of the supporting sliding block, the left side of the supporting sliding block penetrates through the supporting sliding groove and extends into the supporting sliding groove to be in sliding connection with the inner wall of the supporting sliding groove, a supporting plate is arranged on the right side of the supporting threaded sleeve, a supporting sliding rod is fixedly connected to the top of the supporting sliding plate, a wound film bundle is sleeved on the surface of the supporting sliding rod, a threaded pin is fixedly connected to the top of the supporting sliding rod, the utility model discloses a threaded pin, including threaded pin, backup pad, connecting plate fixedly connected with blade, spacing nut, the bottom fixedly connected with support slide of backup pad, the surperficial swing joint of support slide has the support sliding sleeve, the left side fixedly connected with connecting block of support sliding sleeve, electric putter fixed connection is passed through with the bottom of backup pad in the top of connecting block, the right side of support sliding sleeve is through connecting plate fixedly connected with blade, the top on support slide right side corresponds the spacing sliding sleeve of position fixedly connected with of blade, the top of blade is run through spacing sliding sleeve and is extended to its outside, the surface of threaded rod just is located the top and the equal threaded connection in below of support threaded sleeve has adjustable thread bush.

Preferably, the fixed plate is sleeved on the surface of the driving rotating shaft, the left side and the right side of the bottom of the fixed plate are fixedly connected with supporting legs, and the bottoms of the supporting legs are fixedly connected with the bottoms of the inner walls of the supporting frames.

Preferably, a supporting bearing is arranged in a groove in the bottom of the inner wall of the supporting frame corresponding to the position of the threaded rod, and the bottom of the threaded rod penetrates through the supporting bearing and extends to the inside of the supporting bearing to be fixedly connected with an inner ring of the supporting bearing.

Preferably, a ball is arranged in the groove on the left side of the supporting sliding block, and the left side of the ball is in contact with the left side of the inner wall of the supporting sliding groove.

Preferably, the bottom of the supporting sliding plate is fixedly connected with a limiting block, and the top of the limiting block is in contact with the bottom of the supporting sliding sleeve.

Preferably, the middle part of the supporting frame is provided with two groups of rotating chains which are arranged up and down, the rotating chains are driven by a gear connected with a motor, and the outer sides of the rotating chains are provided with pneumatic control suckers acting on the wound film; a plurality of pairs of rotating rollers are arranged between the two rotating chains, the rotating rollers are arranged on the front side of the supporting frame, and a gap for driving a wound film is arranged between each pair of rotating rollers; a first fixing plate is arranged inside the right side of the rotating chain, a first telescopic cylinder is arranged on the first fixing plate, a first sliding rail is arranged at the front end of the first telescopic cylinder, one or two arc-shaped sliding pressing plates are arranged on the first sliding rail, and the arc-shaped sliding pressing plates are arranged between the placing disc and the pressing disc; a second fixing plate is arranged outside the right side of the rotating chain, a second telescopic cylinder is arranged on the second fixing plate, a second sliding rail is arranged at the front end of the second telescopic cylinder, and a glue brush which can reciprocate up and down is arranged on the second sliding rail; the blade is disposed between two pairs of adjacent rollers.

Preferably, the winding device further comprises a positioning cylindrical rod, the positioning cylindrical rod is arranged between the rotating chain and the threaded rod, and the winding film on the threaded rod enters a gap between each pair of rotating rollers after passing through the positioning cylindrical rod.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the invention, the threaded rod, the supporting threaded sleeve, the supporting sliding block, the supporting plate, the supporting sliding sleeve, the electric push rod, the blade, the limiting sliding sleeve and the adjusting threaded sleeve are mutually matched, so that the tray winding machine for food packaging is convenient to use, on one hand, the winding height can be accurately controlled by adjusting the adjustable threaded sleeve, the difficulty in controlling the winding height is reduced, on the other hand, the winding film can be cut off at a position close to the winding bundle, the winding film is prevented from contacting with a mechanical part, and unnecessary troubles brought to operators are avoided.

2. The fixing plate and the supporting legs are arranged to transversely support the driving rotating shaft, the supporting bearing is arranged to support the threaded rod, the balls are arranged to reduce friction between the supporting sliding block and the inner wall of the supporting sliding groove, and the limiting blocks are arranged to prevent the supporting sliding sleeve from being separated from the supporting sliding plate.

3. According to the invention, the rotating chain, the gear, the pneumatic control sucker, the rotating roller, the first fixing plate, the first telescopic cylinder, the first slide rail, the arc-shaped sliding pressing plate, the second fixing plate, the second telescopic cylinder, the second slide rail, the glue brush and the positioning cylindrical rod are mutually matched, so that the winding film can automatically and continuously wind the winding film on the food packaging box when the requirement of a certain height is met on the vertical winding machine.

Drawings

FIG. 1 is a structural cross-sectional view in elevation of the present invention;

FIG. 2 is an enlarged view of a portion B of FIG. 1 in accordance with the present invention;

FIG. 3 is a schematic diagram of the principles of the present invention;

FIG. 4 is a schematic view of the operation of the roller of the present invention;

fig. 5 is a partial cross-sectional view taken at a-a of fig. 3 in accordance with the present invention.

In the figure: 1 supporting frame, 2 mounting grooves, 3 first driving motor, 4 driving rotating shafts, 5 shelving plates, 6 supporting blocks, 7 rollers, 8 cylinders, 9 connecting bearings, 10 pressing plates, 11 second driving motor, 12 threaded rods, 13 supporting threaded sleeves, 14 supporting sliders, 15 supporting chutes, 16 supporting plates, 17 supporting slide rods, 18 winding membrane bundles, 19 threaded pins, 20 limiting plates, 21 hinges, 22 limiting nuts, 23 supporting slide plates, 24 supporting slide sleeves, 25 connecting blocks, 26 electric push rods, 27 connecting plates, 28 blades, 29 limiting slide sleeves, 30 adjustable threaded sleeves, 31 fixing plates, 32 supporting legs, 33 supporting bearings, 34 balls, 35 limiting blocks, 36 rotating chains, 37 gears, 38 pneumatic control suction cups, 39 rotating rollers, 40 first fixing plates, 41 first telescopic cylinders, 42 first sliding rails, 43 arc-shaped sliding pressing plates, 44 second fixing plates, 45 second telescopic cylinders, 46 second slide rail, 47 glue brush, 48 positioning cylinder rod, a winding film and b food package box.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 invention.

Referring to fig. 1-2, a tray winding machine for food packaging comprises a supporting frame 1, a mounting groove 2 is formed on the right side of the bottom of the inner wall of the supporting frame 1, a first driving motor 3 is arranged at the bottom of the inner wall of the mounting groove 2, a driving rotating shaft 4 is fixedly connected to an output shaft of the first driving motor 3, a shelving tray 5 is fixedly connected to the top of the driving rotating shaft 4, penetrates through the mounting groove 2 and extends to the outside of the driving rotating shaft 4, a fixing plate 31 is sleeved on the surface of the driving rotating shaft 4, supporting legs 32 are fixedly connected to the left side and the right side of the bottom of the fixing plate 31, the bottoms of the supporting legs 32 are fixedly connected to the bottom of the inner wall of the supporting frame 1, a transverse supporting effect is performed on the driving rotating shaft 4 by arranging the fixing plate 31 and the supporting legs 32, rollers 7 are fixedly connected to the left side and the, the roller 7 is arranged to play a role of rolling and supporting the shelving tray 5, the cylinder 8 is arranged at the top of the support frame 1 corresponding to the position of the shelving tray 5, the cylinder 8 is arranged to play a role of providing pushing force, the bottom of the cylinder 8 penetrates through the support frame 1 and extends to the inside of the support frame, the connecting bearing 9 is fixedly connected to the surface of the cylinder 8 and is positioned in the support frame 1, the pressing disc 10 is fixedly connected to the bottom of the connecting bearing 9, the connecting bearing 9 is arranged to play a role of movably connecting the cylinder 8 with the top of the pressing disc 10, the pressing disc 10 is arranged to play a role of fixing food goods, the second driving motor 11 is fixedly connected to the top of the support frame 1 and is positioned at the left side of the cylinder 8, the threaded rod 12 is fixedly connected to the output shaft of the second driving motor 11, and the bottom of the threaded rod 12 penetrates through the support frame 1, a supporting bearing 33 is arranged in a groove at the bottom of the inner wall of the supporting frame 1 corresponding to the position of the threaded rod 12, the bottom of the threaded rod 12 penetrates through the supporting bearing 33 and extends to the inside of the supporting bearing and is fixedly connected with the inner ring of the supporting bearing, the supporting bearing 33 is arranged to play a role of supporting the threaded rod 12, a supporting threaded sleeve 13 is in threaded connection with the surface of the threaded rod 12 and the inside of the supporting frame 1, a supporting sliding block 14 is fixedly connected with the left side of the supporting threaded sleeve 13, a ball 34 is arranged in the groove at the left side of the supporting sliding block 14, the left side of the ball 34 is in mutual contact with the left side of the inner wall of the supporting sliding groove 15, the function of reducing friction between the supporting sliding block 14 and the inner wall of the supporting sliding groove 15 is realized by arranging the ball 34, a supporting sliding groove 15 is arranged at the position, the supporting slide block 14 and the supporting slide groove 15 are matched with each other to play a role of slidably supporting the supporting threaded sleeve 13, the right side of the supporting threaded sleeve 13 is provided with a supporting plate 16, the top of the supporting plate 16 is fixedly connected with a supporting slide rod 17, the surface of the supporting slide rod 17 is sleeved with a wound film bundle 18, the top of the supporting slide rod 17 is fixedly connected with a threaded pin 19, the surface of the threaded pin 19 is sleeved with a limiting plate 20, the left side of the limiting plate 20 is connected with the right side of the supporting threaded sleeve 13 through a hinge 21, the surface of the threaded pin 19 and the top of the limiting plate 20 are in threaded connection with a limiting nut 22, the limiting plate 20 is limited at the top of the supporting slide rod 17 through the arrangement of the limiting nut 22, the wound film bundle 18 is further prevented from being separated from the supporting slide rod 17, the bottom of the supporting plate 16 is fixedly connected, the bottom of the supporting sliding plate 23 is fixedly connected with a limiting block 35, the top of the limiting block 35 is contacted with the bottom of the supporting sliding sleeve 24, the effect of preventing the supporting sliding sleeve 24 from being separated from the supporting sliding plate 23 is achieved by arranging the limiting block 35, the left side of the supporting sliding sleeve 24 is fixedly connected with a connecting block 25, the top of the connecting block 25 is fixedly connected with the bottom of the supporting plate 16 through an electric push rod 26, the right side of the supporting sliding sleeve 24 is fixedly connected with a blade 28 through a connecting plate 27, the effect of cutting a wound film is achieved by arranging the blade 28, the position of the top of the right side of the supporting sliding plate 23, which corresponds to the blade 28, is fixedly connected with a limiting sliding sleeve 29, the effect of supporting the blade 28 is achieved by arranging the limiting sliding sleeve 29, the top of the blade 28 penetrates through the limiting sliding sleeve 29 and extends to the outside of the, through threaded rod 12, support thread bush 13, support slider 14, backup pad 16, support slide 23, support sliding sleeve 24, electric putter 26, blade 28, spacing sliding sleeve 29 and adjustable thread bush 30 mutually support, make the tray coiler for food package facilitate the use, can accurately control the winding height through adjusting adjustable thread bush 30 on the one hand, the degree of difficulty of control winding height has been reduced, on the other hand can cut off the winding membrane in the position that is close to winding membrane bundle 18, the contact of winding membrane and mechanical part has been avoided, it is troublesome to have avoided bringing unnecessary for operating personnel.

When the food packaging box is used, a tray with food packaging boxes placed is placed on the placing plate 5, the air cylinder 8 is started, the air cylinder 8 pushes the pressing plate 10 to move downwards to fix the food packaging boxes, the winding film is adhered on a product, the movable space of the supporting threaded sleeve 13 is adjusted by rotating the adjustable threaded sleeve 30 so as to control the winding height on the product, after the adjustment is completed, the first driving motor 3 is started, the first driving motor 3 drives the placing plate 5 to rotate through the driving rotating shaft 4, the placing plate 5 drives the food packaging boxes on the top of the placing plate to rotate, so that the winding film is wound, the second driving motor 11 is started, the second driving motor 11 is motor equipment with the changeable rotating direction, the threaded rod 12 is driven to rotate through the second driving motor 11, so that the supporting threaded sleeve 13 is driven to move up and down in the operable winding space under the action of external threads by the threaded rod 12, thereby twine the winding membrane to food package box, after the winding is accomplished, close first driving motor 3 and second driving motor 11, start electric putter 26, electric putter 26 stimulates support sliding sleeve 24 rebound through connecting block 25, and support sliding sleeve 24 drives blade 28 rebound through connecting plate 27, and blade 28 passes through at the position that is close to winding membrane bundle 18 right side, cuts off the winding membrane, and the winding to food package box is accomplished.

On the basis, with reference to fig. 3 to 5, two sets of rotating chains 36 are disposed at the middle of the supporting frame 1, the rotating chains 36 are driven by a gear 37 connected to a motor, the motor can be connected to the gear 37 on the left side in the figure, and the gear 37 on the right side is rotatably disposed on the supporting frame 1. An air-controlled suction cup 38 for acting on the winding film is provided on the outer side of the rotary chain 36, and the winding film is sucked by the air-controlled suction cup 38. The middle of the two rotating chains 36 is provided with a plurality of pairs of rotating rollers 39, the rotating rollers 39 are arranged at the front side of the supporting frame 1, the rotating rollers 39 are arranged side by side, the middle of each pair of rotating rollers 39 is provided with a gap for driving a wound film, and the rotating rollers 39 rotate along with the wound film in the driving process. A first fixing plate 40 is arranged inside the right side of the rotating chain 36, a first telescopic cylinder 41 is arranged on the first fixing plate 40, a first slide rail 42 is arranged at the front end of the first telescopic cylinder 41, one or two arc-shaped sliding press plates 43 are arranged on the first slide rail 42, the arc-shaped sliding press plates 43 are arranged between the placing tray 5 and the pressing tray 10, and the arc-shaped sliding press plates 43 are used for fixing the winding film on the food packaging box. A second fixing plate 44 is arranged outside the right side of the rotating chain 36, a second telescopic cylinder 45 is arranged on the second fixing plate 44, a second sliding rail 46 is arranged at the front end of the second telescopic cylinder 45, a glue brush 47 which can reciprocate up and down is arranged on the second sliding rail 46, and the glue brush 47 is used for gluing a food packaging box and gluing a winding film on the food packaging box. The blade 28 is disposed between two pairs of adjacent rollers 39 for slitting the wound film.

When the packaging height of the food is higher than the operating height of a person, in the installation stage, the winding film is placed in the gap between the rollers 39, and the upper and lower ends of the winding film are sucked by the air-controlled suction cups 38 positioned at the two ends of the rollers 39. In the using stage, the tray with the food packaging boxes placed thereon is placed on the placing tray 5, namely the position b of the figure; the second telescopic cylinder 45 is controlled to enable the second sliding rail 46 to move forwards, the glue brush 47 moves up and down to brush glue on the food packaging box, then the second telescopic cylinder 45 controls the second sliding rail 46 to move backwards, and one side of the food packaging box with the glue rotates clockwise to the opposite side of the gear 37 under the action of the first driving motor 3; controlling the rotation of the rotary chain 36, when the winding film on the pneumatic control sucker 38 reaches the left side of the rotary chain 36, namely the right side of fig. 3, controlling the first sliding rail 42 to move forwards by the first telescopic air cylinder 41, respectively moving the two arc-shaped sliding pressing plates 43 back to fix the winding film on the food packaging box, when the arc-shaped sliding pressing plates 43 are about to move to the pneumatic control sucker 38, namely the two ends of the winding film, releasing the winding film by the pneumatic control sucker 38, fixing the winding film on the food packaging box by the arc-shaped sliding pressing plates 43, and then releasing the winding film when the subsequent pneumatic control sucker 38 is about to reach the food packaging box, wherein the rotation speed of the food packaging box is slightly higher than the transmission speed of the winding film, so as to ensure that the winding film on the; when the amount of the wrapping film is enough, the wrapping film is cut by moving the blade 28 upwards, wherein the blade 28 must be positioned between the two rollers 39 to ensure that the winding machine can continuously and automatically wind the wrapping film on the food packaging box; and taking down the wound food packaging box, replacing the wound food packaging box with a new one, and continuing the operation.

In addition, a positioning cylindrical rod 48 is designed, the positioning cylindrical rod 48 is arranged between the rotating chain 36 and the threaded rod 12, and the winding film on the threaded rod 12 enters the gap between each pair of rotating rollers 39 after passing through the positioning cylindrical rod 48. The positioning cylindrical rod 48 can keep the winding film in a certain flatness before the winding film is contacted with the pneumatic control sucker 38, and is also beneficial to the pneumatic control sucker 38 to suck the two sides of the winding film.

In summary, the following steps: this tray coiler for food package has solved the inconvenient problem of using of current tray coiler for food package through threaded rod 12, support thread bush 13, support slider 14, backup pad 16, support slide 23, support sliding sleeve 24, connecting block 25, electric putter 26, connecting plate 27, blade 28, spacing sliding sleeve 29 and adjustable thread bush 30 and mutually support.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a tray coiler for food package, includes carriage (1), its characterized in that: the right side of the bottom of the inner wall of the supporting frame (1) is provided with a mounting groove (2), the bottom of the inner wall of the mounting groove (2) is provided with a first driving motor (3), an output shaft of the first driving motor (3) is fixedly connected with a driving rotating shaft (4), the top of the driving rotating shaft (4) penetrates through the mounting groove (2) and extends to the outside of the mounting groove and is fixedly connected with a shelving plate (5), the left side and the right side of the bottom of the shelving plate (5) are fixedly connected with rollers (7) through supporting blocks (6), the bottom of the rollers (7) is mutually contacted with the bottom of the inner wall of the supporting frame (1), the top of the supporting frame (1) is provided with a cylinder (8) corresponding to the position of the shelving plate (5), the bottom of the cylinder (8) penetrates through the supporting frame (1) and extends to the inside of the supporting frame, the surface of the cylinder (8) is, the bottom of the connecting bearing (9) is fixedly connected with a pressing disc (10), the top of the supporting frame (1) is fixedly connected with a second driving motor (11) which is positioned on the left side of the air cylinder (8), an output shaft of the second driving motor (11) is fixedly connected with a threaded rod (12), the bottom of the threaded rod (12) penetrates through the supporting frame (1) and extends to the inside of the supporting frame, the surface of the threaded rod (12) and the inside of the supporting frame (1) are in threaded connection with a supporting threaded sleeve (13), the left side of the supporting threaded sleeve (13) is fixedly connected with a supporting slide block (14), a supporting slide groove (15) is formed in the left side of the inner wall of the supporting frame (1) corresponding to the position of the supporting slide block (14), the left side of the supporting slide block (14) penetrates through the supporting slide groove (15) and extends to the inside of the supporting, the right side of supporting thread bush (13) is provided with a supporting plate (16), the top fixedly connected with of supporting plate (16) supports slide bar (17), the surface of supporting slide bar (17) is cup jointed with winding film bundle (18), the top fixedly connected with thread pin (19) of supporting slide bar (17), the surface of thread pin (19) is cup jointed with limiting plate (20), the left side of limiting plate (20) is connected with the right side of supporting thread bush (13) through hinge (21), the surface of thread pin (19) and the top threaded connection located at limiting plate (20) are provided with limiting nut (22), the bottom fixedly connected with of supporting plate (16) supports sliding plate (23), the surface swing joint of supporting sliding plate (23) is provided with supporting sliding bush (24), the left side fixedly connected with connecting block (25) of supporting sliding bush (24), the top of the connecting block (25) is fixedly connected with the bottom of the supporting plate (16) through an electric push rod (26), the right side of the supporting sliding sleeve (24) is fixedly connected with a blade (28) through a connecting plate (27), the top of the right side of the supporting sliding plate (23) is fixedly connected with a limiting sliding sleeve (29) at a position corresponding to the blade (28), the top of the blade (28) penetrates through the limiting sliding sleeve (29) and extends to the outside of the limiting sliding sleeve, and the surface of the threaded rod (12) and the positions above and below the supporting threaded sleeve (13) are both in threaded connection with adjustable threaded sleeves (30);

two groups of rotating chains (36) which are arranged up and down are arranged in the middle of the supporting frame (1), the rotating chains (36) are driven by a gear (37) connected with a motor, and an air control sucking disc (38) acting on a wound film is arranged on the outer side of each rotating chain (36); a plurality of pairs of rotating rollers (39) are arranged between the two rotating chains (36), the rotating rollers (39) are arranged on the front side of the supporting frame (1), and a gap for driving a wound film is arranged between each pair of rotating rollers (39); a first fixing plate (40) is arranged inside the right side of the rotating chain (36), a first telescopic cylinder (41) is arranged on the first fixing plate (40), a first sliding rail (42) is arranged at the front end of the first telescopic cylinder (41), one or two arc-shaped sliding pressing plates (43) are arranged on the first sliding rail (42), and the arc-shaped sliding pressing plates (43) are arranged between the holding tray (5) and the pressing tray (10); a second fixing plate (44) is arranged outside the right side of the rotating chain (36), a second telescopic cylinder (45) is arranged on the second fixing plate (44), a second sliding rail (46) is arranged at the front end of the second telescopic cylinder (45), and a glue brush (47) which can reciprocate up and down is arranged on the second sliding rail (46); the blade (28) is arranged between two pairs of adjacent rollers (39).

2. The tray winder for food packaging according to claim 1, characterized in that: fixed plate (31) have been cup jointed on the surface of drive pivot (4), equal fixedly connected with supporting leg (32) in the left and right sides of fixed plate (31) bottom, the bottom of supporting leg (32) and the bottom fixed connection of carriage (1) inner wall.

3. The tray winder for food packaging according to claim 1, characterized in that: the supporting frame is characterized in that a supporting bearing (33) is arranged in a groove in the bottom of the inner wall of the supporting frame (1) corresponding to the position of the threaded rod (12), and the bottom of the threaded rod (12) penetrates through the supporting bearing (33) and extends to the inside of the supporting bearing and is fixedly connected with an inner ring of the supporting bearing.

4. The tray winder for food packaging according to claim 1, characterized in that: and a ball (34) is arranged in the groove on the left side of the supporting slide block (14), and the left side of the ball (34) is in mutual contact with the left side of the inner wall of the supporting slide groove (15).

5. The tray winder for food packaging according to claim 1, characterized in that: the bottom fixedly connected with stopper (35) of support slide (23), the top of stopper (35) and the bottom of supporting sliding sleeve (24) contact each other.

6. The tray winder for food packaging according to claim 1, characterized in that: the winding device is characterized by further comprising a positioning cylindrical rod (48), wherein the positioning cylindrical rod (48) is arranged between the rotating chain (36) and the threaded rod (12), and a winding film positioned on the threaded rod (12) enters a gap between each pair of rotating rollers (39) after passing through the positioning cylindrical rod (48).