Film laminating machine with positioning structure for food label production and use method

Abstract

The invention discloses a film laminating machine with a positioning structure for food label production and a use method, relates to the technical field of film laminating machines, and aims to solve the problems that in the film laminating process, the traction speed fluctuates, so that materials at the laminating position are not completely laminated after the speed is increased, non-laminated positions exist among the materials, and the film laminating quality is poor. Through the friction force between the sliding roller and the material, after the traction speed of the material is increased, the sliding roller slides in the sliding groove through the cooperation of inertia and the friction force, the included angle between the film and the bottom of the covering and pressing roller and the included angle between the paper and the bottom of the covering and pressing roller are changed, and the attaching pressure of the paper and the film to the bottom of the covering and pressing roller is increased; the laminating pressure of the increased paper and the film to the bottom of the laminating roller is matched with the rolling between the laminating roller and the fixed roller, so that the laminating and laminating effect is improved, and the phenomenon that the laminating effect is reduced due to the incomplete laminating phenomenon between the label film and the paper caused by the fluctuation of the traction speed is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of laminating machines, and in particular to a laminating machine for producing food labels with a positioning structure and a use method thereof. Background Art

[0002] At present, the food label laminating machine is a device used to cover a layer of film on the surface of the food label. It usually adheres the plastic film to the surface of the food label paper or other materials by heating, pressing, etc. The film roll is first installed at a specific position of the machine. When the label is transported into the laminating area, the rollers and other components inside the machine will drive the film to contact the label, and use the appropriate temperature to melt the glue layer on the film or use the built-in adhesive system to make the film flat and firmly attached to the label. Finally, cutting and other subsequent processing are carried out to make the laminated label a finished product;

[0003] Since the pulling speed will fluctuate during the film lamination process, the materials at the lamination position will not be fully pressed after the speed is increased, and unpressed positions will appear between the materials. Summary of the invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: A laminating machine for producing food labels with a positioning structure, comprising:

[0005] A frame, a material roller frame is fixedly installed on one side of the top of the frame, and a motor is fixedly installed on the other side of the bottom of the frame, and a winding roller is fixedly installed on the output end of the motor;

[0006] A laminating mechanism, which is used to laminate and laminate the paper and the film, and is installed at the center of the top of the frame, and a positioning mechanism is fixedly installed on one side of the top of the laminating mechanism close to the material roller frame;

[0007] An adjusting mechanism, which is used to control the tension adjustment during winding, and is installed on the top of the frame on one side away from the material roller frame;

[0008] The cam is provided with a plurality of rollers, each of which is provided with a plurality of rollers, each of which is provided with a plurality of rollers, each of which is provided with a plurality of rollers, each of which is provided with a plurality of rollers, each of which is provided with a plurality of rollers, each of which is provided with a plurality of rollers, each of which is provided with a plurality of rollers, each of which is provided with a plurality of rollers, each of which is provided with a plurality of rollers, each of which is provided with a plurality of rollers, each of which is provided with a plurality of rollers, each of which is provided with a plurality of rollers, When the fluctuation occurs, the increased laminating pressure of the paper and film on the bottom of the laminating roller is coordinated with the roller pressure between the laminating roller and the fixed roller, so as to improve the laminating and laminating effect, avoid the phenomenon of incomplete laminating between the label film and the paper due to the fluctuation of the traction speed, and thus reduce the laminating effect. A first spring is installed on the outer side of the slide bar, and a fixed roller is rotatably installed on the inner wall of the inclined slot frame, and the fixed roller is located at an angle below the side of the laminating roller away from the sliding roller. Through the cooperation between the fixed roller, the laminating roller and the sliding roller, during the laminating and laminating process, the paper and the film are zigzag through the gap between the three to perform laminating and laminating. Compared with plane laminating, the film and the paper are fully contacted and pressed, so as to improve the laminating and laminating effect between the film and the paper, and the inner wall of the inclined slot frame is fixedly installed with side rollers, and the side rollers are symmetrically installed along the center position of the axis of the inclined slot frame.

[0009] The positioning mechanism includes a transverse plate, which is fixedly mounted on one side of the top of the inclined trough frame close to the material roller frame, and an arc plate is fixedly mounted on one side of the top of the transverse plate close to the material roller frame, an inner rotating column is rotatably mounted at the center position of the inner wall of the arc plate, and a side rotating column is rotatably mounted on the inner wall of the arc plate, and the side rotating column is symmetrically mounted along the center position of the axis of the arc plate, and the inner rotating column cooperates with the side rotating column, so that in the process of introducing the film, slight wrinkles appear on the film under contact with the inner rotating column, and the position of the film is positioned by the wrinkles, and the left and right movement of the film during the traction process is limited to avoid the occurrence of incorrect overlapping position of paper and film, and a fixing strip is fixedly mounted on the bottom of the transverse plate, and the fixing strip is symmetrically mounted along the center position of the axis of the transverse plate, and the near end of the fixing strip is inclined toward one side of the arc plate, and an oblique pressure strip is fixedly mounted on the bottom of the fixing strip.

[0010] The top of the connecting plate is fixedly provided with a guide roller, and the outer wall of the connecting plate is connected with a guide roller by a toothed plate, and the guide roller is connected with the guide roller to the upper and lower surfaces of the connecting plate.

[0011] The cam plate is fixedly mounted with a second spring between the slide plate and the cross beam plate, the second spring being located at the outer side of the fixed column, and side clamping plates are fixedly mounted on both sides of the bottom of the cross beam plate, and clamping rollers are rotatably mounted between the side clamping plates, and the clamping rollers are symmetrically mounted along the axis center position of the side clamping plates. A top pressure roller is fixedly mounted on the bottom end of the slide plate, and the second spring cooperates with the top pressure roller. During the process of material being pulled, the slide plate is driven by the second spring, so that the top pressure roller drives the material to be tightened to avoid the material being loose during winding and causing winding disorder. At the same time, after the traction stops, the top pressure roller drives the material to contact the arc groove plate, and clamps the material through the arc-shaped protrusion and the annular groove of the top pressure roller to limit the movement of the material, so as to avoid the material being loose after losing traction, and the material at the covering position appears in folds. The bottom of the cross beam plate is fixedly mounted with an arc groove plate, and the bottom of the arc groove plate is evenly provided with arc protrusions, and the outer side of the top pressure roller is evenly provided with annular grooves, and the annular groove of the top pressure roller corresponds one by one to the arc protrusion of the arc groove plate.

[0012] A method for using a laminating machine for producing food labels with a positioning structure comprises the following steps:

[0013] S1, material roll installation, install the film roll and label paper roll in the material roll frame, so that the film roll is located above the paper roll, and then pull the film roll and the paper roll through the positioning mechanism, the pressing mechanism and the adjusting mechanism in sequence and wind them on the winding roller;

[0014] S2, positioning and unfolding the film, the motor drives the winding roller to rotate, drives the paper roll and the film roll to move, and makes the film roll pass through the positioning mechanism, and the film to be laminated is positioned and unfolded before entering the laminating mechanism through the positioning mechanism;

[0015] S3, laminating and pressing, when the film and the label paper pass through the laminating and pressing mechanism, the laminating and pressing mechanism is adjusted according to the moving speed to press the film and the label paper together;

[0016] S4, tension adjustment. The pressed paper and film pass through the laminating mechanism and then enter the adjustment mechanism to control the tension during winding.

[0017] Preferably, as described.

[0018] The present invention provides a laminating machine for producing food labels with a positioning structure. It has the following beneficial effects:

[0019] 1. The laminating machine for producing food labels with a positioning structure uses the friction between the sliding roller and the material. After the traction speed of the material is accelerated, the sliding roller slides in the slide groove through the cooperation of inertia and friction, changes the angle between the film and paper and the bottom of the laminating roller, increases the laminating pressure of the paper and film on the bottom of the laminating roller, and when the traction speed fluctuates, the increased laminating pressure of the paper and film on the bottom of the laminating roller is coordinated with the roller pressure between the laminating roller and the fixed roller, thereby improving the laminating and laminating effect, and avoiding the phenomenon of incomplete laminating between the label film and paper due to the fluctuation of the traction speed, resulting in a reduction in the laminating effect.

[0020] 2. The laminating machine for food label production with a positioning structure, through the cooperation between the fixed roller, the laminating roller and the sliding roller, makes the paper and the film pass through the gap between the three in a zigzag manner during the laminating and pressing process, so as to perform laminating and pressing. Compared with flat laminating, the film and the paper are fully contacted and pressed, thereby improving the laminating and pressing effect between the film and the paper.

[0021] 3. The laminating machine for food label production with a positioning structure cooperates with the inner rotating column and the side rotating column. During the process of introducing the film, the film will have slight wrinkles when it comes into contact with the inner rotating column. The position of the film is positioned through the wrinkles, and the left and right movement of the film during the traction process is restricted, avoiding the error in the laminating position of the paper and the film.

[0022] 4. The laminating machine for food label production with a positioning structure cooperates with the elastic ring through the guidance of the guide roller. When the winding diameter gradually increases and the pulling direction changes, the elastic ring changes and the position of the guide roller is changed so that it changes with the direction of the pulling force, thereby ensuring smooth traction and winding.

[0023] 5. The laminating machine for producing food labels with a positioning structure cooperates with the top pressure roller through the second spring. During the process of the material being pulled, the second spring drives the slide plate to make the top pressure roller drive the material to be tightened, so as to avoid the material being loose during winding and causing winding disorder. At the same time, after the traction stops, the top pressure roller drives the material to contact the arc groove plate, and clamps the material through the arc-shaped protrusion and the annular groove of the top pressure roller to limit the movement of the material, so as to avoid the material being loose after losing the traction force and the material being wrinkled at the laminating position. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1It is a schematic diagram of the external structure of a laminating machine for producing food labels with a positioning structure according to the present invention;

[0025] Figure 2 This is a structural side view of a laminating machine for producing food labels with a positioning structure according to the present invention;

[0026] Figure 3 It is a partial structural schematic diagram of a laminating machine for producing food labels with a positioning structure according to the present invention;

[0027] Figure 4 It is a schematic diagram of the structure of the pressing mechanism of the present invention;

[0028] Figure 5 It is a side view of the structure of the covering and pressing mechanism of the present invention;

[0029] Figure 6 It is a schematic diagram of the positioning mechanism structure of the present invention;

[0030] Figure 7 A bottom view of the positioning mechanism structure of the present invention;

[0031] Figure 8 It is a schematic diagram of the structure of the regulating mechanism of the present invention;

[0032] Fig. 9 It is a partial structural schematic diagram of the regulating mechanism of the present invention;

[0033] Fig.10 It is a bottom view of the partial structure of the adjustment mechanism of the present invention;

[0034] Fig.11 It is a schematic diagram of the method of using the present invention.

[0035] In the figure: 1, frame; 2, pressing mechanism; 3, positioning mechanism; 4, adjusting mechanism; 5, material roller frame; 6, winding roller; 7, motor; 201, inclined slot frame; 202, top slot plate; 203, orifice plate; 204, slide bar; 205, first spring; 206, side roller; 207, slide roller; 208, fixed roller; 209, pressing roller; 210, elastic ring; 31, horizontal plate; 32, arc plate; 33. Inner rotating column; 34. Side rotating column; 35. Fixed bar; 36. Oblique pressure bar; 401. Slide frame; 402. Elastic pad; 403. Side plate; 404. Guide roller; 405. Pressure roller; 406. Connecting plate; 407. Crossbeam plate; 408. Slide plate; 409. Fixed column; 410. Second spring; 411. Side clamping plate; 412. Clamping roller; 413. Arc groove plate; 414. Top pressure roller. DETAILED DESCRIPTION

[0036] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0037] The first embodiment, as Figures 1 to 5 As shown, the present invention provides a technical solution: a laminating machine for producing food labels with a positioning structure, comprising:

[0038] A frame 1, a material roller frame 5 is fixedly installed on one side of the top of the frame 1, and a motor 7 is fixedly installed on the other side of the bottom of the frame 1, and a winding roller 6 is fixedly installed on the output end of the motor 7;

[0039] The laminating mechanism 2 is used to laminate and laminate the paper and the film. The laminating mechanism 2 is installed at the center of the top of the frame 1. A positioning mechanism 3 is fixedly installed on one side of the top of the laminating mechanism 2 close to the material roller frame 5;

[0040] An adjusting mechanism 4, which is used to control the tension adjustment during winding, and is installed on the top of the frame 1 on one side away from the material roller frame 5;

[0041] The laminating mechanism 2 comprises an inclined slot frame 201, and inclined slots are provided on both sides of the inclined slot frame 201 away from the material roller frame 5, and a sliding roller 207 is slidably installed at the inclined slot of the inclined slot frame 201, and a top slot plate 202 is fixedly installed at the center position of the top of the inclined slot frame 201. The label paper and the film enter the laminating mechanism 2 under traction, and the label paper first passes through the side roller 206 close to the side of the material roller frame 5, and then passes through the top of the fixed roller 208 with the smoothed film, and enters the bottom of the laminating roller 209. Through the gravity of the laminating roller 209 itself and the elastic force of the elastic ring 210, the laminating roller 209 cooperates with the fixed roller 208 to press the thin film passing through. The film is pressed against the paper so that the film adheres to the surface of the paper. After the pressing, the paper and the film form a whole and pass through the gap between the laminating roller 209 and the sliding roller 207, then pass over the sliding roller 207 and the top of the side roller 206 away from the material roller frame 5 and move toward the adjustment mechanism 4. A sliding groove is provided on the outer side of the top groove plate 202, and a laminating roller 209 is slidably installed at the sliding groove of the top groove plate 202. An elastic ring 210 is fixedly installed on the top of the sliding groove of the top groove plate 202. Orifice plates 203 are fixedly installed at both ends of the sliding roller 207. Slide rods 204 are slidably installed on the inner wall of the orifice plate 203. The end of the slide rod 204 away from the orifice plate 203 The outer side of the inclined slot frame 201 is fixedly connected, and a first spring 205 is installed on the outer side of the slide bar 204. A fixed roller 208 is rotatably installed on the inner wall of the inclined slot frame 201. When the motor 7 drives the winding roller 6 to rotate and rolls the finished product after lamination, due to the gradual increase in the diameter of the winding, the motor 7 drives the winding roller 6 at the same speed, so that the traction speed of the paper and the film is gradually accelerated. In the process of increasing the traction speed, the laminated finished product contacts the top of the slide roller 207 close to the side of the lamination roller 209. After the traction movement speed is accelerated, the fast-moving laminated product drives the slide roller 207 to move through the friction between the slide roller 207 and the slide roller 207, so that the slide roller 207 moves The orifice plates 203 at both ends move under the restriction of the slide bar 204, so that the friction force compresses the first spring 205 through the slide roller 207 and the orifice plate 203 to deform, so that the slide roller 207 slides in the inclined groove of the inclined groove frame 201, and the height of the slide roller 207 increases during the movement. At the same time, the angle between the film and paper after lamination and the bottom of the laminating roller 209 is changed, so that the laminating pressure of the paper and film on the bottom of the laminating roller 209 is increased. The fixed roller 208 is located at the lower side of the laminating roller 209 away from the slide roller 207. The inner wall of the inclined groove frame 201 is fixedly installed with side rollers 206, and the side rollers 206 are symmetrically installed along the center position of the axis of the inclined groove frame 201.

[0042] The second embodiment is based on the first embodiment. Figure 6 to Figure 7As shown, the positioning mechanism 3 includes a transverse plate 31, which is fixedly mounted on one side of the top of the chute frame 201 close to the material roller frame 5, and an arc plate 32 is fixedly mounted on one side of the top of the transverse plate 31 close to the material roller frame 5, and an inner rotating column 33 is rotatably mounted at the center position of the inner wall of the arc plate 32. When the label film is positioned and unfolded by the positioning mechanism 3, the pulled film first contacts the arc plate 32, and the film is guided by the arc plate 32 to be introduced into the laminating mechanism 2. During the introduction process, the inner rotating column 33 contacts the center position of the top of the film, and the side rotating column 34 cooperates with the inner rotating column 33, so that during the introduction process, the top of the film is wrinkled after contacting the inner rotating column 33 and the side rotating column 34. The film is restricted by folds to limit its position so that it cannot move left and right during traction. A side rotation column 34 is rotatably installed on the inner wall of the arc plate 32. The side rotation column 34 is symmetrically installed along the axis center position of the arc plate 32. A fixing bar 35 is fixedly installed at the bottom of the transverse plate 31. The fixing bar 35 is symmetrically installed along the axis center position of the transverse plate 31. After the film moves to the bottom of the transverse plate 31, the oblique pressure bar 36 connected to the fixing bar 35 at the bottom of the transverse plate 31 is used to smooth the film in the tensioned state, so that the film enters the overlapping position with the label paper after being smoothed, and the fixing bar 35 is inclined toward one side of the arc plate 32 near the end, and the fixing bar 35 is fixedly installed with an oblique pressure bar 36 at the bottom.

[0043] The third embodiment is based on the first and second embodiments. Figures 8 to 11 As shown, the adjustment mechanism 4 includes a slide frame 401, the bottom of the slide frame 401 is fixedly installed on the top of the frame body 1, and a connecting plate 406 is slidably installed on the inner wall of the slide frame 401, and an elastic pad 402 is fixedly installed between the connecting plate 406 and the slide frame 401, and the connecting plates 406 are symmetrically installed along the center position of the axis of the slide frame 401, and the top of the connecting plates 406 is fixedly installed with a side plate 403. The material first passes through the bottom of the pressure roller 405 and the clamping roller 412 on one side close to the pressure roller 405, and then passes through the top of the top pressure roller 414, and passes through the side away from the pressure roller 405. The bottom of the side clamping roller 412 passes through, and finally the material contacts the top of the guide roller 404 and moves downward. The motor 7 drives the winding roller 6 to roll the material. The guide roller 404 is rotatably installed on the side of the side plate 403 away from the material roller frame 5, and the pressure roller 405 is rotatably installed on the side of the side plate 403 close to the material roller frame 5. A crossbeam 407 is fixedly installed at the center position between the side plates 403, and a slide plate 408 is slidably installed on the inner wall of the crossbeam 407. A fixed column 409 is fixedly installed on the top of the crossbeam 407, and the outer side of the fixed column 409 is slidably connected to the inner wall of the slide plate 408.

[0044] A second spring 410 is fixedly installed between the slide plate 408 and the cross beam plate 407. The second spring 410 is located on the outside of the fixed column 409. Side clamping plates 411 are fixedly installed on both sides of the bottom of the cross beam plate 407. A clamping roller 412 is rotatably installed between the side clamping plates 411. The clamping roller 412 is symmetrically installed along the center position of the axis of the side clamping plates 411. A top pressure roller 414 is fixedly installed at the bottom end of the slide plate 408. During the winding process, due to the continuous winding, the winding diameter gradually increases, the winding pulling angle changes, and the pulling force is transmitted to the side plate 403 through the guide roller 404, and is connected to the connecting plate 4 06 is transmitted to the elastic pad 402, so that the elastic pad 402 is deformed under the action of tension, and the connecting plate 406 slides according to the change of the winding pulling angle. At the same time, during the winding process, the slide plate 408 is driven by the second spring 410, so that the slide plate 408 drives the material to be tightened through the top pressure roller 414, so that the material is always kept in a tightened state during winding. An arc groove plate 413 is fixedly installed on the bottom of the crossbeam plate 407, and arc-shaped protrusions are evenly arranged on the bottom of the arc groove plate 413. Annular grooves are evenly opened on the outer side of the top pressure roller 414, and the annular grooves of the top pressure roller 414 correspond to the arc-shaped protrusions of the arc groove plate 413 one by one.

[0045] A method for using a laminating machine for producing food labels with a positioning structure comprises the following steps:

[0046] S1, material roll installation, install the film roll and label paper roll in the material roll frame 5, so that the film roll is located above the paper roll, and then pull the film roll and the paper roll through the positioning mechanism 3, the laminating mechanism 2 and the adjusting mechanism 4 in sequence and wind them on the winding roller 6;

[0047] S2, positioning and unfolding the film, the motor 7 drives the winding roller 6 to rotate, drives the paper roll and the film roll to move, and makes the film roll pass through the positioning mechanism 3, and the film to be laminated is positioned and unfolded by the positioning mechanism 3 before entering the laminating mechanism 2;

[0048] S3, laminating and laminating, when the film and the label paper pass through the laminating and laminating mechanism 2, the laminating and laminating mechanism 2 is adjusted according to the moving speed to press the film and the label paper together;

[0049] S4, tension adjustment, the laminated paper and film pass through the laminating mechanism 2 and enter the adjusting mechanism 4 to control the tension during winding.

[0050] When in use, the staff installs the film roll and the label paper roll in the material roll frame 5 so that the film roll is located above the paper roll, and then pulls the film roll and the paper roll through the positioning mechanism 3, the laminating mechanism 2 and the adjusting mechanism 4 in turn and winds them on the winding roller 6. The motor 7 drives the winding roller 6 to rotate, drives the paper roll and the film roll to move, so that the film roll passes through the positioning mechanism 3, and the positioning mechanism 3 is used to position and unfold the film to be laminated before entering the laminating mechanism 2. In the process of the film and the label paper passing through the laminating mechanism 2, the laminating mechanism 2 is adjusted according to the moving speed to laminate the film and the label paper. The laminated paper and the film pass through the laminating mechanism 2 and enter the adjusting mechanism 4 to control the tension during winding.

[0051] When the label film is positioned and unfolded by the positioning mechanism 3, the pulled film first contacts the arc plate 32, and is guided by the arc plate 32 to be introduced into the laminating mechanism 2. During the introduction process, the inner rotating column 33 contacts the center position of the top of the film, and the side rotating column 34 cooperates with the inner rotating column 33, so that during the introduction process, wrinkles appear on the top of the film after contacting the inner rotating column 33 and the side rotating column 34. The wrinkles limit the film, and the position of the film is limited, so that the film cannot move left and right during the traction process. After the film moves to the bottom of the horizontal plate 31, the oblique pressure strip 36 connected to the bottom of the horizontal plate 31 through the fixed strip 35 is used to smooth the film in the tensioned state, so that the film enters the laminating position with the label paper after being smoothed.

[0052] In the laminating mechanism 2, the label paper and the film enter the laminating mechanism 2 under traction. The label paper first passes through the side roller 206 close to the material roller frame 5, and then passes over the top of the fixed roller 208 with the smoothed film, and enters the bottom of the laminating roller 209. Through the gravity of the laminating roller 209 and the elastic force of the elastic ring 210, the laminating roller 209 cooperates with the fixed roller 208 to press the passing film and paper, so that the film adheres to the surface of the paper. After lamination, the paper and film form a whole, pass through the gap between the laminating roller 209 and the sliding roller 207, and then pass over the sliding roller 207 and the top of the side roller 206 away from the material roller frame 5 to move toward the direction of the adjusting mechanism 4. When the motor 7 drives the winding roller 6 to rotate and rolls the finished product after lamination, the winding diameter gradually increases. , when the motor 7 drives the winding roller 6 at the same speed, the traction speed of the paper and the film is gradually accelerated. In the process of accelerating the traction speed, the laminated finished product contacts the top of the slide roller 207 close to the side of the coating roller 209. After the traction movement speed is accelerated, the fast-moving laminated product drives the slide roller 207 to move through the friction between the slide roller 207 and the slide roller 207, so that the slide roller 207 moves under the restriction of the orifice plates 203 and the slide bar 204 at both ends, so that the friction force compresses the first spring 205 through the slide roller 207 and the orifice plates 203 to deform, so that the slide roller 207 slides in the inclined groove of the inclined groove frame 201, and the height of the slide roller 207 increases during the movement. At the same time, the angle between the film after lamination and the paper and the bottom of the coating roller 209 is changed, so that the fitting pressure of the paper and the film on the bottom of the coating roller 209 is increased.

[0053] When the pressed material enters the adjusting mechanism 4, the material first passes through the bottom of the pressing roller 405 and the clamping roller 412 on the side close to the pressing roller 405, then passes through the top of the top pressing roller 414, and passes out from the bottom of the clamping roller 412 on the side away from the pressing roller 405. Finally, the material contacts the top of the guide roller 404 and moves downward. The motor 7 drives the winding roller 6 to roll the material. During the winding process, due to the continuous winding, the winding diameter gradually increases, the winding pulling angle changes, and the tension is transmitted to the side plate 403 through the guide roller 404, and is transmitted to the elastic pad 402 through the connecting plate 406, so that the elastic pad 402 is deformed under the action of the tension, and the connecting plate 406 slides according to the change of the winding pulling angle. At the same time, during the winding process, the slide plate 408 is driven by the second spring 410, so that the slide plate 408 drives the material to be tightened through the top pressing roller 414, so that the material always remains in a tightened state during winding.

[0054] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A laminating machine for producing food labels with a positioning structure, characterized in that: include: A frame (1), a material roller frame (5) is fixedly mounted on one side of the top of the frame (1), and a motor (7) is fixedly mounted on the other side of the bottom of the frame (1), and a winding roller (6) is fixedly mounted on the output end of the motor (7); A laminating mechanism (2), the laminating mechanism (2) being used to laminarly laminate the paper and the film, the laminating mechanism (2) being installed at the center of the top of the frame (1), and a positioning mechanism (3) being fixedly installed on one side of the top of the laminating mechanism (2) close to the material roller frame (5); An adjusting mechanism (4), the adjusting mechanism (4) is used to control the tension adjustment during winding, and the adjusting mechanism (4) is installed on a side of the top of the frame (1) away from the material roller frame (5); The covering and pressing mechanism (2) comprises an inclined slot frame (201), and inclined slots are provided on both sides of the inclined slot frame (201) away from the material roller frame (5), and a sliding roller (207) is slidably installed at the inclined slot of the inclined slot frame (201), and a top slot plate (202) is fixedly installed at the center position of the top of the inclined slot frame (201), and a sliding slot is provided on the outer side of the top slot plate (202), and a covering roller (207) is slidably installed at the sliding slot of the top slot plate (202). A pressure roller (209), an elastic ring (210) is fixedly installed on the top of the slide groove of the top groove plate (202), and a hole plate (203) is fixedly installed on both ends of the sliding roller (207). A sliding rod (204) is slidably installed on the inner wall of the hole plate (203), and one end of the sliding rod (204) away from the hole plate (203) is fixedly connected to the outer side of the inclined groove frame (201), and a first spring (205) is installed on the outer side of the sliding rod (204).

2. The laminating machine for producing food labels with a positioning structure according to claim 1, characterized in that: A fixed roller (208) is rotatably mounted on the inner wall of the chute frame (201), and the fixed roller (208) is located obliquely below the side of the pressing roller (209) away from the sliding roller (207). A side roller (206) is fixedly mounted on the inner wall of the chute frame (201), and the side roller (206) is symmetrically mounted along the center position of the axis of the chute frame (201).

3. The laminating machine for producing food labels with a positioning structure according to claim 2, characterized in that: The positioning mechanism (3) comprises a transverse plate (31), wherein the transverse plate (31) is fixedly mounted on one side of the top of the chute frame (201) close to the material roller frame (5), and an arc-shaped plate (32) is fixedly mounted on one side of the top of the transverse plate (31) close to the material roller frame (5).

4. The laminating machine for producing food labels with a positioning structure according to claim 3, characterized in that: An inner rotating column (33) is rotatably mounted at the center position of the inner wall of the arc plate (32), and a side rotating column (34) is rotatably mounted at the inner wall of the arc plate (32). The side rotating columns (34) are symmetrically mounted along the center position of the axis of the arc plate (32).

5. The laminating machine for producing food labels with a positioning structure according to claim 3, characterized in that: A fixing strip (35) is fixedly installed at the bottom of the transverse plate (31), and the fixing strip (35) is symmetrically installed along the center position of the axis of the transverse plate (31), and the fixing strip (35) is inclined toward the arc-shaped plate (32) near the end, and an oblique pressure strip (36) is fixedly installed at the bottom of the fixing strip (35).

6. The laminating machine for producing food labels with a positioning structure according to claim 1, characterized in that: The adjustment mechanism (4) comprises a slide slot frame (401), the bottom of the slide slot frame (401) is fixedly mounted on the top of the frame body (1), and a connecting plate (406) is slidably mounted on the inner wall of the slide slot frame (401), an elastic pad (402) is fixedly mounted between the connecting plate (406) and the slide slot frame (401), the connecting plate (406) is symmetrically mounted along the center position of the axis of the slide slot frame (401), and a side plate (403) is fixedly mounted on the top of each of the connecting plates (406).

7. The laminating machine for producing food labels with a positioning structure according to claim 6, characterized in that: A guide roller (404) is rotatably mounted on the side of the side plate (403) away from the material roller frame (5), and a pressure roller (405) is rotatably mounted on the side of the side plate (403) close to the material roller frame (5). A cross beam (407) is fixedly mounted at the center position between the side plates (403), a slide plate (408) is slidably mounted on the inner wall of the cross beam (407), and a fixed column (409) is fixedly mounted on the top of the cross beam (407), and the outer side of the fixed column (409) is slidably connected to the inner wall of the slide plate (408).

8. The laminating machine for producing food labels with a positioning structure according to claim 7, characterized in that: A second spring (410) is fixedly installed between the slide plate (408) and the cross beam plate (407), and the second spring (410) is located on the outside of the fixed column (409). Side clamping plates (411) are fixedly installed on both sides of the bottom of the cross beam plate (407), and clamping rollers (412) are rotatably installed between the side clamping plates (411), and the clamping rollers (412) are symmetrically installed along the center position of the axis of the side clamping plates (411).

9. The laminating machine for producing food labels with a positioning structure according to claim 8, characterized in that: A top pressure roller (414) is fixedly installed at the bottom end of the slide plate (408), an arc groove plate (413) is fixedly installed at the bottom of the cross beam plate (407), arc-shaped protrusions are evenly arranged at the bottom of the arc groove plate (413), and annular grooves are evenly opened on the outer side of the top pressure roller (414), and the annular grooves of the top pressure roller (414) correspond one to one to the arc-shaped protrusions of the arc groove plate (413).

10. The method for using the laminating machine for producing food labels with a positioning structure according to any one of claims 1 to 9, characterized in that: It consists of the following steps: S1, material roll installation, installing the film roll and the label paper roll in the material roll frame (5), so that the film roll is located above the paper roll, and then pulling the film roll and the paper roll through the positioning mechanism (3), the laminating mechanism (2) and the adjustment mechanism (4) in sequence and winding them on the winding roller (6); S2, positioning and unfolding the film, the motor (7) drives the winding roller (6) to rotate, drives the paper roll and the film roll to move, and makes the film roll pass through the positioning mechanism (3), and the positioning mechanism (3) positions and unfolds the film to be laminated before entering the laminating mechanism (2); S3, laminating and bonding, in the process that the film and the label paper pass through the laminating and bonding mechanism (2), the laminating and bonding mechanism (2) is adjusted according to the moving speed to laminate the film and the label paper; S4, tension adjustment, the pressed paper and film pass through the laminating mechanism (2) and then enter the adjustment mechanism (4) to control the tension during winding.

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