CN119503202A

CN119503202A - A film-covering packaging device capable of accurately cutting at a fixed distance and a method of using the same

Info

Publication number: CN119503202A
Application number: CN202411856906.3A
Authority: CN
Inventors: 宋晓敏; 宋建丰; 吴杰
Original assignee: Suzhou Yingyang Packaging Technology Co ltd
Current assignee: Suzhou Yingyang Packaging Technology Co ltd
Priority date: 2024-12-17
Filing date: 2024-12-17
Publication date: 2025-02-25

Abstract

The present invention relates to a film coating packaging device capable of precise cutting at a fixed distance, comprising a film coating main body mechanism, wherein the film coating main body mechanism comprises a welding base, a left vertical plate, a right vertical plate, a top plate, a roller bearing seat, a film coating power roller, a roller motor seat, a roller motor, a pulley and a belt; the left vertical plate and the right vertical plate are fixedly arranged on the welding base and are symmetrically arranged facing each other, the top plate is fixedly arranged on the left vertical plate and the right vertical plate, the roller bearing seats are provided with two groups, each group is provided with a plurality of rollers, the two groups are symmetrically fixedly arranged on the outer sides of the left vertical plate and the right vertical plate, the film coating power roller is provided with a plurality of rollers, the present invention can effectively improve the running stability, improve the tangential force uniformity between the film coating pressure wheel and the film coating power roller, thereby improving the film coating effect, reducing the occurrence of film peeling, bubbles and other problems; reducing the influence of wrinkles and curling during the film coating movement on the film coating effect and the film coating quality.

Description

Film-covered packaging device capable of achieving accurate distance cutting and use method thereof

Technical Field

The invention relates to the technical field of film coating packaging, in particular to a film coating packaging device capable of accurately cutting at fixed intervals and a using method thereof.

Background

The coating film is formed by sticking a transparent plastic film on the surface of a printed matter through hot pressing, and plays roles of protecting and increasing gloss. Cover films have been widely used for surface framing and protection of covers for books and periodicals, paintings, autographs, postcards, product specifications, calendars, maps, and the like. Common film-coated packaging products include cartons, handbag, fertilizer bag, seed bag, self-adhesive labels and the like.

The most basic function of the film is to protect the package. During shipping and storage, the articles are often subjected to external forces such as abrasion, extrusion, impact, etc., and therefore a protective layer is required to protect the articles from damage. The film may also be used to protect the package from moisture. In a humid environment, many articles are susceptible to attack by moisture, thereby losing their use. The coating can effectively avoid the occurrence of the situation. Some articles are susceptible to deterioration or chemical reactions under the influence of oxygen, thereby losing their useful effect. In order to avoid this, the coating can be used to prevent oxidation, effectively extending the useful life of the article. The cover film may also be used to extend the shelf life of the article. By covering a layer of protective film, the packaged articles can be prevented from being polluted and damaged by the outside, so that the shelf life of the articles is prolonged, and the original freshness and quality of the articles are maintained.

In different industries, the coating film also has respective application and characteristics. For example, films used in the food industry are required to meet hygienic standards, can be used to package various foods, and protect foods from bacterial contamination and oxidative deterioration. The cover film used in textile industry can be used to protect textiles from dust and bacteria and to increase their gloss and aesthetics.

‌ Film-coated packaging note that ‌ material selection ‌, the selection of the appropriate film-coated material, is critical. Polyethylene (PE), polypropylene (PP) and Polyester (PET) are common laminating materials. PE film is colorless, odorless, transparent, nontoxic, difficult to adhere, needs corona treatment, PP film (such as BOPP) has excellent mechanical strength and transparency, is nonpolar substance, needs corona treatment, and PET film has good transparency and mechanical strength, good heat resistance, and is easy to charge ‌. It should be noted that ‌ the process ‌ requires reasonable control of temperature, pressure, and time process parameters during processing to ensure quality and stability of the coating. At the same time, care should be taken to avoid static electricity generation so as not to damage ‌ the material. Note ‌ quality control ‌ the appearance, size, thickness, etc. of the material is checked to ensure that it meets the requirements. In addition, defects such as bubbles, wrinkles, etc. which may be generated during the process are also checked to ensure the quality and stability ‌ of the coating. Note that ‌ storage and transport ‌ is to avoid adverse environmental conditions such as direct sunlight, high temperature, humidity, etc., and to prevent mechanical damage such as scratches, collisions, etc., during storage and transport to maintain its performance and quality ‌.

Problems may be encountered during the lamination process, such as snowflakes in the product. This may be due to too much powder, too little glue, inadequate pressure from the press roll, or dry glue on the applicator roll. The solution includes properly increasing the glue amount, adjusting the pressure of the pressurizing roller, cleaning the glue spreading roller and the like ‌.

The application number 202210553792.X provides a film-covered packaging system and a film-covered packaging method, and relates to the technical field of logistics packaging. The film coating packaging system comprises a conveying and measuring mechanism, a film coating packaging mechanism, a discharging mechanism and a control device. The conveying and measuring mechanism comprises a conveying line, a dimension measuring group, a straightening baffle group and a position adjusting group, wherein the conveying line conveys articles, and the dimension measuring group is used for detecting parameters such as the length, the width, the height and the like of the articles. The centering baffle plate group is movably arranged on the conveying line and perpendicular to the preset direction and is used for stopping or avoiding articles. The position adjusting group is used for driving the articles to move to the middle part of the conveying line. The film-coating packaging machine receives the articles output by the conveying line and packages and coats the articles. The discharging mechanism is used for outputting articles. The film coating packaging method provided by the invention is applied to the film coating packaging system. The film-covered packaging system and the film-covered packaging method can improve the film-covered packaging efficiency and reduce the labor cost.

However, the existing film coating packaging device is low in running stability, so that uneven tangential stress is generated between a film coating pinch roller and a film coating power roller, the film coating effect is poor, the problems of film lifting, air bubbles and the like are easy to occur, the film coating effect is easily affected by wrinkling and curling in the film coating movement process, the film coating quality is affected, the cutting position is low in control precision, the film coating waste is caused, the packaging cost is high, the product flow direction is free, and the film coating quality is affected by the change of the movement position of the film coating product due to uneven roller members or vibration in the rolling process.

Disclosure of Invention

The invention aims to solve the technical problems of improving running stability, improving tangential stress uniformity between a laminating pinch roller and a laminating power roller, improving laminating effect, reducing the occurrence of problems such as film lifting, air bubbles and the like, reducing the influence on laminating effect caused by wrinkling and curling in the laminating movement process, influencing laminating quality, improving cutting position control precision, reducing laminating waste, reducing packaging cost, controlling product flow direction to be free, reducing the change of the movement position of a laminating product caused by uneven roller parts or vibration in the rolling process, and improving laminating quality.

The invention provides a film-covered packaging device capable of accurately cutting at fixed intervals, which comprises a film-covered main body mechanism, wherein the film-covered main body mechanism comprises a welding base, a left vertical plate, a right vertical plate, a top plate, a roller bearing seat, a film-covered power roller, a roller motor seat, a roller motor, belt wheels and a belt, wherein the left vertical plate and the right vertical plate are fixedly arranged on the welding base and are oppositely and symmetrically arranged, the top plate is fixedly arranged on the left vertical plate and the right vertical plate, the roller bearing seat is provided with two groups, each group is provided with a plurality of the two groups, the two groups are oppositely and symmetrically arranged outside the left vertical plate and the right vertical plate, the film-covered power roller is provided with a plurality of the film-covered power rollers, the film-covered power roller is movably arranged between the two groups of the roller bearing seats, the axes are parallel on the same horizontal plane, the roller motor seat is fixedly arranged on the left vertical plate, the roller motor is fixedly arranged on the roller motor seat, a plurality of groups of the left side end parts of the film-covered power roller and the roller motor seat are fixedly provided with the belt wheels, and the belt wheels are movably connected through the belt;

The pressing wheel mechanism for pressing the film and the product is fixedly arranged on the film covering main body mechanism;

and a film supporting mechanism for supporting the film is fixedly arranged on the film main body mechanism.

The pressing wheel mechanism comprises a pressing wheel avoiding groove, a guide linear rail, guide blocks, a pressing wheel cylinder, a middle connecting rod, a floating joint and a film covering pressing wheel, wherein a plurality of groups of pressing wheel avoiding grooves are symmetrically formed in the left vertical plate and the right vertical plate, a plurality of groups of pressing wheel avoiding grooves are symmetrically and fixedly arranged on the outer sides of the left vertical plate and the right vertical plate, the guide blocks are movably arranged on one side of each group of pressing wheel avoiding groove through sliding blocks, so that the guide blocks reciprocate vertically along the guide linear rail, the pressing wheel cylinder is fixedly arranged on a top plate, one end of the middle connecting rod is fixedly connected with the output end of the pressing wheel cylinder, the other end of the middle connecting rod is fixedly connected with the guide blocks, the floating joint is fixedly arranged on one end of the guide blocks, which is far away from the middle connecting rod, and the film covering pressing wheel is movably arranged in the floating joint which is symmetrically arranged in two groups;

Preferably, the film covering supporting mechanism comprises a supporting large vertical plate, a supporting angle seat, a rotating motor, a film rod bearing seat, an air supporting film rod, a film roller, a primary auxiliary rod, a secondary auxiliary rod, a curling adjusting seat, a width adjusting long groove, an anti-curling fixing seat and an anti-curling limiter; the large supporting vertical plate is fixedly arranged on the welding base through the supporting angle seat, the two groups of rotating motor seats are arranged, the two groups of rotating motor seats are respectively and fixedly arranged on the outer side of the large supporting vertical plate, one group of top and one group of bottom are respectively and longitudinally provided with a first-stage auxiliary rod and a second-stage auxiliary rod which are parallel to the axis of the air supporting film shaft, the rotating motor is fixedly arranged on the rotating motor seat, the film rod bearing seat is fixedly arranged on one side of the large supporting vertical plate far away from the rotating motor seat and concentric with the axis of the rotating motor, the air supporting film rod is movably arranged in the film rod bearing seat, one end of the air supporting film rod is fixedly connected with the shaft end of the rotating motor, one side of each group of air supporting film rod is respectively and longitudinally provided with a first-stage auxiliary rod and a second-stage auxiliary rod which are parallel to the axis of the air supporting film shaft, the edge rolling adjustment seat is fixedly arranged on the inner side of the large supporting vertical plate, a plurality of groups of width adjustment grooves are formed in the edge rolling adjustment seat, and the two groups of edge rolling adjustment seat are fixedly arranged on the edge rolling adjustment seat, and each edge rolling adjustment seat is fixedly provided with two groups of anti-rolling fixing seats;

Preferably, the film-covered packaging device capable of precisely cutting at fixed intervals further comprises a transverse fixed-length cutting mechanism, wherein the transverse fixed-length cutting mechanism comprises a transverse cutting seat, a cutting pushing cylinder, a cutter connecting block, a cutter seat, a transverse cutter, an auxiliary bearing seat and an auxiliary guide rod, the transverse cutting seat is fixedly arranged on the welding base, the cutting pushing cylinder is fixedly arranged on the top plate, the cutter seat is fixedly connected with the output end of the cutting pushing cylinder through the cutter connecting block, the transverse cutter is fixedly arranged on the cutter seat, the auxiliary bearing seats are provided with a plurality of groups and are fixedly arranged on the top plate, and the auxiliary guide rod is movably arranged in the auxiliary bearing seat, and one end of the auxiliary guide rod is fixedly connected with the cutter seat;

Preferably, the film-covered packaging device capable of precisely cutting at fixed intervals further comprises a longitudinal fixed-length cutting mechanism, wherein the longitudinal fixed-length cutting mechanism comprises a fixed block, a directional straight rail, a sliding block, a linear motor, a stator rail, a rotor sliding block, a cutting wheel seat, a cutting wheel motor, a longitudinal cutting wheel, a longitudinal cutting adjusting motor and an adjusting screw rod; the linear motors are respectively and fixedly arranged at one ends of two groups of stator rails, two groups of rotor sliders are movably arranged on each group of stator rails, a cutting wheel seat is fixedly arranged on each group of rotor sliders, a longitudinal cutting wheel is fixedly arranged on each cutting wheel seat, the shaft ends of the motors are fixedly provided with longitudinal cutting wheels, one group of linear motors are fixedly arranged between the left vertical plate and the right vertical plate through fixing blocks, the other group of linear motors are movably arranged between the left vertical plate and the right vertical plate through the directional straight rails and the sliders, the two groups of stator rails are arranged in parallel, longitudinal cutting wheels on each group of rotor sliders are symmetrically and oppositely arranged, longitudinal cutting adjusting motors are fixedly arranged on the top plate, one end of each adjusting screw is fixedly connected with each longitudinal cutting adjusting motor, and the other end of each adjusting screw is movably connected with the stator rail positioned on each slider through nuts;

Preferably, the film packaging device capable of precisely spacing cutting further comprises an adjustable feeding mechanism, wherein the adjustable feeding mechanism comprises a fixed large plate, a belt supporting seat, a belt rolling seat, a conveying belt, a conveying motor, a fixed supporting vertical plate, auxiliary supporting wheels, a sliding rod supporting seat, sliding rods, an adjustable supporting plate seat, an adjustable supporting vertical plate, a width adjusting bearing seat and a width adjusting screw rod, the fixed large plate is fixedly arranged on the welding base, one side of a film coating power roller is provided with two groups, the two groups are respectively and fixedly arranged at two ends of the fixed large plate, the belt rolling seat is fixedly arranged on the belt supporting seat, the conveying belt is movably connected through rotating shafts in the belt rolling seat and is in transmission through belt wheels, the fixed supporting vertical plate is respectively and fixedly arranged at two sides of the conveying belt and is parallel to the moving direction of the conveying belt, a plurality of groups of auxiliary supporting wheels are movably arranged on the fixed supporting vertical plate, the sliding rod supporting seat is fixedly arranged on the welding base, the fixed supporting vertical plate is fixedly arranged on the sliding rod supporting seat, the movable vertical plate is arranged on the movable vertical plate seat, the two groups of the adjustable supporting vertical plate is arranged on the sliding rod supporting seat, the sliding rod is movably arranged on the sliding rod supporting seat, the two groups are respectively, the sliding rods are vertically arranged on the fixed vertical plate through the two groups, the adjustable supporting vertical plate is movably arranged on the fixed vertical plate, the sliding rod supporting seat is movably arranged on the fixed vertical plate, the sliding rod seat is respectively, the sliding rod is movably arranged on the sliding rod seat, two groups are respectively, and the two groups are movably arranged on the sliding seat are respectively, the two groups of adjustable supporting plate seats are movably arranged on the width adjusting screw rod through nuts;

Preferably, the laminating packaging device capable of precisely cutting at fixed intervals further comprises a pressing mechanism, wherein the pressing mechanism comprises a supporting plate, a supporting frame, a sliding rod cylinder, a sliding vertical plate, a pressing wheel seat, a pressing wheel and a guiding pressing plate, wherein the supporting plate is fixedly arranged on one side of the left vertical plate and one side of the right vertical plate, the supporting frame is fixedly arranged on the large fixed plate, the sliding rod cylinder is fixedly arranged between the supporting plate and the supporting frame, the sliding vertical plate is fixedly arranged at the movable end part of the sliding rod cylinder, the pressing wheel seat is fixedly arranged on the sliding vertical plate, a plurality of groups of pressing wheels are movably arranged on the pressing wheel seat, the guiding pressing plate is fixedly arranged on the sliding vertical plate, the outer circle of the pressing wheel is tangent to the bottom surface of the guiding pressing plate, and the pressing wheel is arranged on the upper side of the conveying belt;

Preferably, the laminating packaging device capable of accurately spacing cutting further comprises a discharging mechanism, wherein the discharging mechanism comprises a discharging seat, a roller shaft, rollers, a discharging motor, a pressure rod supporting seat, a pressure rod and an adjusting handle, the discharging seat is fixedly arranged on the welding base, the laminating power roller is far away from one side of the adjustable feeding mechanism, two groups of roller shafts are respectively and movably arranged on the discharging seat, a plurality of groups of rollers are fixedly arranged on the roller shaft, one group of roller shaft ends are fixedly connected with the discharging motor, the two groups of roller shafts are connected through a belt, the pressure rod supporting seat is provided with two groups and fixedly arranged on the discharging seat, the two groups of rollers are symmetrically arranged, the pressure rod seat is movably arranged in the pressure rod supporting seat and can move up and down, the adjusting handle is movably arranged in the pressure rod seat, and one end of the adjusting handle is fixedly connected with the pressure rod seat;

Preferably, the laminating packaging device capable of accurately and quantitatively cutting also comprises two fixed-length inductors, wherein the fixed-length inductors are fixedly arranged on one group of the fixed support vertical plates in a tandem manner;

the application method of the laminating and packaging device capable of accurately spacing and cutting comprises the following steps:

S1, driving the width adjusting screw rod to rotate through a motor so as to drive two groups of adjustable supporting plate seats to move in opposite directions, and enabling the two groups of adjustable supporting plate seats to be close to or far away from the two groups of fixed supporting vertical plates so as to limit the feeding width, and driving the conveying belt to rotate through the conveying motor so as to drive products to enter;

s2, the pressure discharge wheel descends to a position, which is away from the thickness of the product, on the upper side of the conveying belt, and the product enters the film covering power roller through the conveying belt, the pressure discharge wheel and the guide pressure plate;

S3, measuring the length of the product from the first group of fixed-length inductors to the first group of fixed-length inductors, and comparing retest data in the second group to determine the transverse cutting position of the laminated film;

S4, the roller motor rotates, so that the belt on a belt wheel fixedly arranged at the left end part of the film coating power roller and the end part of the roller motor is movably connected, power is transmitted, and the film coating power roller is driven to rotate;

S5, the pressing wheel cylinder acts, and the middle connecting rod drives the guide block to linearly reciprocate up and down along the guide linear rail, so that the film-coating pressing wheel on the floating joint is driven to linearly reciprocate up and down along the guide linear rail, and the film-coating pressing wheel is close to or far away from the film-coating power roller;

S6, the film roller with the required width is sleeved on the air supporting film rod, the air supporting film rod is pneumatically tensioned to fix the film roller, the rotating motor rotates to drive the upper group of film rollers and the lower group of film rollers to rotate in opposite directions, and a film passes through the primary auxiliary rod, passes through the two groups of anti-curling limiters which are symmetrically arranged, passes through the secondary auxiliary rod and enters the tangential position of the film pressing wheel and the film covering power roller;

S7, the cutting pushing cylinder acts, the cutter connecting block drives the transverse cutters on the cutter seat to move linearly downwards along the axial direction of the auxiliary guide rod, and the transverse cutters contact the transverse cutter seat to finish the transverse cutting action of the laminated film and then retract;

S8, the linear motor drives the rotor sliders on the stator rail to linearly move, so that two groups of rotor sliders on the same group of stator rail are driven to move in opposite directions, the rotor sliders on different stator rails synchronously move, different up-down synchronous cutting widths are adjusted, the cutting wheel motor drives the longitudinal cutting wheel to rotate, the film is longitudinally cut, and the longitudinal cutting adjusting motor adjusts the rotor sliders on the stator rail to linearly move through the adjusting screw rod, so that the film laminating machine is suitable for products with different thicknesses;

S9, the discharging motor drives the roller shaft to rotate, so that the roller is driven to rotate, the belt is driven to rotate, the film-covered product is driven to move, the adjusting handle drives the pressure rod seat to move up and down in the pressure rod supporting seat, and the height of the pressure rod is adjusted;

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

1. Through set up pinch roller dodge groove, direction straight line rail, guide block on left riser, the right riser, can improve the pinch roller operation precision from top to bottom to and the operation stationarity, guarantee tangentially and control atress is even between tectorial membrane pinch roller and the tectorial membrane power cylinder, effectively avoided leading to tectorial membrane effect poor because of the atress is uneven, play membrane, bubble scheduling problem.

2. Through setting up two-way tectorial membrane supporting mechanism, carry out tectorial membrane packing to upper and lower two-layer simultaneously, reduce tectorial membrane packing number of times, improve tectorial membrane efficiency, through setting up turn-up adjustment seat, width regulating elongated slot, anti-hemming fixing base, anti-hemming stopper, can prevent effectively that tectorial membrane fold turn-up from influencing the tectorial membrane effect, improve tectorial membrane quality, simultaneously, to different width tectorial membranes, can easily adjust the position of anti-hemming stopper, simple structure is functional strong.

3. Through setting up horizontal scale cutting mechanism, combine the design of fixed length inductor, size control around the accurate control cutting, accurate control transversely tailors the position, improve equipment machining precision, reduce the waste of tectorial membrane, reduce packaging cost.

4. Through setting up vertical scale cutting mechanism, through cutting wheel seat and moving on the stator rail, combine the preset of adjustable support riser in the adjustable feed mechanism, can cut out the position to the accurate control of vertical cutting of tectorial membrane product, improve machining precision, through the fixed setting of lower group on the fixed block, upper group activity sets up on directional straight rail to through the lead screw connection, adjustable cutting height adapts to the not high product of co-altitude, improves the application scope of equipment.

5. Through setting up adjustable backup pad seat, adjustable support riser, width adjustment bearing frame, the width adjustment lead screw in the adjustable feed mechanism, can be according to product size width, the quick adjustment support position, restriction product flow direction degree of freedom has improved the operation precision before the product gets into the tectorial membrane, but the running stability.

6. Through setting up swager, pinch roller seat, row pinch roller, direction clamp plate, to the suitable appropriate pressure of product, prevent to roll in-process, because of the uneven or vibrations of gyro wheel spare leads to tectorial membrane product motion position change, influence tectorial membrane quality.

7. Through setting up discharge mechanism, at tectorial membrane product discharge gate depression bar supporting seat, depression bar, adjustment handle, not only can improve the stationarity of product exit tectorial membrane product operation, still be convenient for adjust the pinch roller height to adapt to the product of not co-altitude, synthesized the stability that has improved equipment processing.

Drawings

The invention is described in further detail below with reference to the drawings of the specification:

FIG. 1 is a front view of the present invention;

FIG. 2 is a left side view of the present invention;

FIG. 3 is a schematic perspective view of the present invention;

FIG. 4 is a schematic view of the structure of the section in the direction A-A in FIG. 2;

FIG. 5 is a rear view of the present invention;

FIG. 6 is an enlarged partial schematic view of the area B in FIG. 5;

FIG. 7 is an enlarged partial schematic view of region C of FIG. 3;

FIG. 8 is an enlarged partial schematic view of region D of FIG. 4;

FIG. 9 is an enlarged partial schematic view of the area E in FIG. 3;

FIG. 10 is an enlarged partial schematic view of region F in FIG. 3;

FIG. 11 is an enlarged partial schematic view of the region G in FIG. 2;

FIG. 12 is a schematic view of the H-H section of FIG. 1;

FIG. 13 is an enlarged partial schematic view of the J area in FIG. 12;

FIG. 14 is a schematic view of the structure of the section in the direction K-K in FIG. 2;

FIG. 15 is an enlarged partial schematic view of the area L in FIG. 14;

FIG. 16 is an enlarged partial schematic view of the area M in FIG. 3;

FIG. 17 is an enlarged partial schematic view of the N region in FIG. 4;

FIG. 18 is an enlarged partial schematic view of the region P in FIG. 3;

FIG. 19 is an enlarged partial schematic view of the region R of FIG. 15;

in the figure, 1, a film-covered main body mechanism; 101, welding a base; 102, a left vertical plate; 103, right vertical plate, 104, top plate, 105, roller bearing housing, 106, film coating power roller, 107, roller motor housing, 108, roller motor, 109, pulley, 110, belt, 2, pinch roller mechanism, 201, pinch roller evasion groove, 202, guide linear rail, 203, guide block, 204, pinch roller cylinder, 205, intermediate link, 206, floating joint, 207, film coating pinch roller, 3, film coating support mechanism, 301, support large vertical plate, 302, support angle housing, 303, rotary motor housing, 304, rotary motor, 305, film rod bearing housing, 306, gas strut film rod, 307, film roller, 308, primary auxiliary rod, 309, secondary auxiliary rod, 310, edge roll adjustment housing, 311, width adjustment slot, 312, anti-edge roll fixing seat, 313, edge roll prevention limiter, 4, lateral fixed length cutting mechanism, 401, lateral cutting housing, 402, cutting push cylinder, 403, cutter connecting block, 404, cutter housing, 405, 406, auxiliary bearing housing, auxiliary guide rod, 5, longitudinal fixed length cutting mechanism, 501, fixed block, motor housing, 307, film roll fixing seat, 307, film roll fixing seat, map, roll fixing seat, roll fixing seat, roll, fixing seat, fixing roll, fixing seat and fixing seat, fixing seat and fixing seat and fixing seat fixing supporting, support plate, 702, support frame, 703, slide bar cylinder, 704, slide vertical plate, 705, pinch roller seat, 706, discharge pinch roller, 707, guide pinch plate, 8, discharge mechanism, 801, discharge seat, 802, roller shaft, 803, roller, 804, discharge motor, 805, pressure bar support seat, 806, pressure bar seat, 807, pressure bar, 808, adjusting handle, 9, fixed length inductor;

Detailed Description

Example 1

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-19, the film wrapping device capable of precisely spacing cutting comprises a film wrapping main body mechanism 1, wherein the film wrapping main body mechanism 1 comprises a welding base 101, a left vertical plate 102, a right vertical plate 103, a top plate 104, a roller bearing seat 105, a film wrapping power roller 106, a roller motor seat 107, a roller motor 108, a belt wheel 109 and a belt 110, wherein the left vertical plate 102 and the right vertical plate 103 are fixedly arranged on the welding base 101 and symmetrically arranged in opposite directions, the top plate 104 is fixedly arranged on the left vertical plate 102 and the right vertical plate 103, the roller bearing seat 105 is provided with two groups, each group is provided with a plurality of the two groups, the two groups are symmetrically arranged outside the left vertical plate 102 and the right vertical plate 103 in opposite directions, the film wrapping power roller 106 is provided with a plurality of the roller bearing seats, the two groups are movably arranged between the roller bearing seats 105, the axes are parallel in the same horizontal plane, the roller seat 107 is fixedly arranged on the left vertical plate 102, the roller motor 108 is fixedly arranged on the roller motor seat 107, the roller motor 108 is fixedly arranged on the roller motor seat 108, the roller motor 108 is fixedly arranged on the roller motor seat 106, the roller motor 108 and the belt 109 are fixedly arranged on the belt wheel end part of the roller, and the belt 109 is fixedly connected with the end part of the roller, and the roller is fixedly arranged on the belt end part of the roller 106, and the end part is fixedly connected with the belt 110, and the end part is rotatably and the end part is fixedly connected with the roller power roller 106;

the pressing wheel mechanism 2 for pressing the film and the product is fixedly arranged on the film covering main body mechanism 1;

the film coating main body mechanism 1 is fixedly provided with a film coating supporting mechanism 3 for supporting a film coating.

In some embodiments, the pinch roller mechanism 2 described with reference to fig. 7 and 8 includes a pinch roller avoidance groove 201, a guide linear rail 202, a guide block 203, a pinch roller cylinder 204, an intermediate connecting rod 205, a floating joint 206, and a film-covered pinch roller 207; a plurality of groups of pinch roller avoidance grooves 201 are symmetrically formed in the left vertical plate 102 and the right vertical plate 103, a plurality of groups of guide straight line rails 202 are symmetrically and fixedly arranged on the outer sides of the left vertical plate 102 and the right vertical plate 103, a guide block 203 is movably arranged on each group of the guide straight line rails 202 through a sliding block, so that the guide block 203 moves up and down in a straight line along the guide straight line rails 202, a pinch roller cylinder 204 is fixedly arranged on the top plate 104, one end of a middle connecting rod 205 is fixedly connected with the output end of the pinch roller cylinder 204, the other end of the middle connecting rod is fixedly connected with the guide block 203, a floating joint 206 is fixedly arranged on one end, far away from the middle connecting rod 205, of the guide block 203, and a film-covered pinch roller 207 is movably arranged in the floating joint 206 which is symmetrically arranged in two groups; when in use, the pressure roller cylinder 204 acts, the middle connecting rod 205 drives the guide block 203 to reciprocate along the guide linear rail 202 vertically and linearly, so as to drive the pressure roller 207 on the floating joint 206 to reciprocate along the guide linear rail 202 vertically and linearly, and approach or keep away from the film coating power roller 106, the pressure roller avoidance grooves, the guide linear rail and the guide block are arranged on the left vertical plate and the right vertical plate, thus improving the up-and-down operation precision and operation stability of the pressure roller, ensuring the tangent between the film coating pressure roller and the film coating power roller and uniform left-and-right stress, effectively avoiding poor film coating effect caused by uneven stress, film formation, air bubbles and the like.

In some embodiments, referring to fig. 5, 9 and 10, the film supporting mechanism 3 includes a large supporting vertical plate 301, a supporting angular seat 302, a rotating motor seat 303, a rotating motor 304, a film rod bearing seat 305, a gas supporting film rod 306, a film roller 307, a primary auxiliary rod 308, a secondary auxiliary rod 309, a curling adjusting seat 310, a width-adjusting long groove 311, an anti-curling fixing seat 312 and an anti-curling limiter 313, wherein the large supporting vertical plate 301 is fixedly arranged on the welding base 101 through the supporting angular seat 302, the rotating motor seat 303 is provided with two groups, respectively, fixedly arranged on the outer side of the large supporting vertical plate 301, one group at the top and one group at the bottom are symmetrically arranged relative to a tangent plane of the film pressing wheel 207 and the film coating power roller 106, the rotating motor 304 is fixedly arranged on the rotating motor seat 303, the film rod bearing seat 305 is fixedly arranged on one side of the large supporting vertical plate 301 far away from the rotating motor seat 303 and concentric with the axis of the rotating motor seat 304, the gas supporting film rod 306 is movably arranged on the inner side of the film rod seat 301, the two groups are fixedly arranged on the inner side of the supporting vertical plate 301, the two groups of the auxiliary rod 306 and the two auxiliary rod 306 are fixedly arranged on the long groove 311, one end of the auxiliary rod is fixedly arranged on the inner side of the film rod seat 306, one group of the film rod seat 306, and one group is fixedly arranged on the two groups of the auxiliary rod 306, and one group is symmetrically arranged on the two groups of the film rod bearing seat 306, and one end is fixedly arranged on the side of the auxiliary rod seat 306, when the auxiliary rod is fixedly arranged on the side of the film rod seat 306, the upper supporting rod is fixedly arranged on the side, the upper support seat is fixedly arranged on the side of the upper support seat is fixedly arranged on the side, and the upper support seat is arranged, and the upper support seat is fixed, and is provided with one end, and is fixed, and is arranged on the upper seat is fixed, and is arranged. The film roller 307 with the required width is sleeved on the air supporting film rod 306, the air supporting film rod is pneumatically tensioned and fixed to the film roller 307, the rotating motor 304 rotates to drive the upper and lower groups of film rollers 307 to rotate in opposite directions, the film passes through the two groups of anti-curling limiters 313 which are symmetrically arranged after passing through the primary auxiliary rod 308, passes through the secondary auxiliary rod 309 and enters the tangential position of the film pressing wheel 207 and the film coating power roller 106, and the two-way film coating supporting mechanism is arranged to simultaneously carry out film coating packaging on the upper and lower layers, so that the film coating packaging times are reduced, the film coating efficiency is improved, the film coating folding effect can be effectively prevented from being influenced by film coating folds and curling, the film coating quality is improved, meanwhile, the positions of the anti-curling limiters can be easily adjusted for films with different widths, and the film coating machine has a simple structure and strong functionality.

In some embodiments, referring to fig. 8 and 11, the film wrapping device capable of precisely spacing cutting further comprises a transverse sizing cutting mechanism 4, wherein the transverse sizing cutting mechanism 4 comprises a transverse cutting seat 401, a cutting pushing cylinder 402, a cutter connecting block 403, a cutter seat 404, a transverse cutter 405, an auxiliary bearing seat 406 and an auxiliary guide rod 407, the transverse cutting seat 401 is fixedly arranged on the welding base 101, the cutting pushing cylinder 402 is fixedly arranged on the top plate 104, the cutter seat 404 is fixedly connected with the output end of the cutting pushing cylinder 402 through the cutter connecting block 403, the transverse cutter 405 is fixedly arranged on the cutter seat 404, the auxiliary bearing seat 406 is provided with a plurality of groups and fixedly arranged on the top plate 104, the auxiliary guide rod 407 is movably arranged in the auxiliary bearing seat 406, one end of the auxiliary guide rod is fixedly connected with the cutter seat 404, when the film wrapping device is used, the cutting pushing cylinder 402 acts, the transverse cutter 405 on the cutter seat 404 is driven to move downwards along the direction of the auxiliary guide rod 407 through the connecting block 403, the waste of the cutting mechanism is reduced, the film wrapping device is precisely controlled to cut the film wrapping device, and the transverse wrapping device is precisely arranged, and the film wrapping device is moved back, and the transverse wrapping device is precisely and the film wrapping device is controlled.

In some embodiments, the film-covered packaging device capable of precise distance cutting described with reference to fig. 12-13 further comprises a longitudinal cutting mechanism 5, wherein the longitudinal cutting mechanism 5 comprises a fixed block 501, a directional straight rail 502, a sliding block 503, a linear motor 504, a stator rail 505, a rotor sliding block 506, a cutting wheel seat 507, a cutting wheel motor 508, a longitudinal cutting wheel 509, a longitudinal cutting adjusting motor 510 and an adjusting screw 511; the linear motors 504 are provided with two groups, which are respectively and fixedly arranged at one ends of two groups of stator rails 505, each group of stator rails 505 is movably provided with two groups of rotor sliders 506, each group of rotor sliders 506 is fixedly provided with a cutting wheel seat 507, the cutting wheel motor 508 is fixedly arranged on the cutting wheel seat 507, the motor shaft end is fixedly provided with a longitudinal cutting wheel 509, one group of linear motors 504 is fixedly arranged between the left vertical plate 102 and the right vertical plate 103 through the fixing block 501, the other group of linear motors 504 is movably arranged between the left vertical plate 102 and the right vertical plate 103 through the directional straight rails 502 and the sliding blocks 503, the two groups of stator rails 505 are arranged in parallel, the longitudinal cutting wheels 509 on each group of rotor sliders 506 are symmetrically and oppositely arranged, the longitudinal cutting adjusting motor 510 is fixedly arranged on the top plate 104, one end of the adjusting screw 511 is fixedly connected with the longitudinal cutting adjusting motor 510, the other end of the adjusting screw is movably connected with the stator rails 505 on the sliding blocks 503 through nuts, when the two groups of linear motors 504 are used, the two groups of stator rails 505 are driven by the same linear motor 505, the two groups of stator sliders 505 are driven by the same linear motor 505 to move synchronously, the two groups of stator sliders 506 are driven by the same linear motor 505, and move synchronously, the two groups of the stator rails 505 are driven by the two groups of the stator sliders 506 are not synchronously moved by the same linear motor rails 506, the cutting wheel motor 508 drives the longitudinal cutting wheel 509 to rotate so as to cut the film longitudinally, the longitudinal cutting adjusting motor 510 adjusts the linear motion of the rotor sliding block 506 positioned on the stator rail 505 through the adjusting screw rod 511 so as to adapt to the film coating of products with different thicknesses, and the longitudinal cutting position of the film coating product can be accurately controlled by arranging the longitudinal fixed-length cutting mechanism, combining with the preset of the adjustable supporting vertical plate in the adjustable feeding mechanism through the movement of the cutting wheel seat on the stator rail, improving the processing precision, arranging the lower group on the fixed block fixedly, arranging the upper group on the directional straight rail movably, connecting the upper group through the screw rod, adjusting the cutting height, adapting to the products with different heights and improving the application range of equipment.

In some embodiments, the film wrapping device capable of accurate distance cutting described with reference to fig. 14-15 further comprises an adjustable feeding mechanism 6, wherein the adjustable feeding mechanism 6 comprises a fixed large plate 601, a belt supporting seat 602, a belt rolling seat 603, a conveying belt 604, a conveying motor 605, a fixed supporting vertical plate 606, an auxiliary supporting wheel 607, a sliding rod supporting seat 608, a sliding rod 609, an adjustable supporting plate seat 610, an adjustable supporting vertical plate 611, a width adjusting bearing seat 612 and a width adjusting screw 613; the fixed large plate 601 is fixedly arranged on the welding base 101, one side of the film coating power roller 106 is provided with two groups of belt supporting seats 602, the two groups of belt supporting seats 602 are respectively and fixedly arranged at two ends of the fixed large plate 601, the belt rolling seats 603 are fixedly arranged on the belt supporting seats 602, the conveying belt 604 is movably connected through rotating shafts in the two groups of belt rolling seats 603 and is driven by the conveying motor 605 through belt wheel belts, the fixed supporting vertical plates 606 are respectively and fixedly arranged at two sides of the conveying belt 604 and are parallel to the movement direction of the conveying belt 604, the fixed supporting vertical plates 606 are movably provided with a plurality of groups of auxiliary supporting wheels 607, the sliding rod supporting seats 608 are provided with a plurality of groups of auxiliary supporting wheels 608, the fixed supporting seats are fixedly arranged on the fixed large plate 601, the sliding rods 609 are movably arranged in the sliding rod supporting seats 608, the axes of the sliding rods are perpendicular to the movement direction of the conveying belt 604, the adjustable supporting seats 610 are provided with two groups, the sliding rods 609 are movably arranged on the sliding rods 609, the two groups of the fixed supporting plates 606 are arranged on the outer sides of the two groups of the fixed supporting plates 606, the adjustable supporting plates 611 are arranged on the outer sides of the two groups of the fixed supporting plates 612, the width adjusting screw rod 613 is fixedly arranged on the fixed large plate 601, is sleeved in the width adjusting bearing seat 612, is driven by a motor and is arranged in parallel with the sliding rod 609, the two groups of adjustable supporting plate seats 610 are movably arranged on the width adjusting screw rod 613 through nuts, when the device is used, the width adjusting screw rod 613 is driven by the motor to rotate, so that the two groups of adjustable supporting plate seats 610 are driven to move oppositely and are close to or far from the two groups of fixed supporting vertical plates 606, the feeding width is limited, the conveying motor 605 drives the conveying belt 604 to rotate, so that products are driven to enter, and the supporting position can be quickly adjusted according to the size and the width of the products, the product flow direction freedom degree is limited, the running precision before the products enter the film is improved, and the device is stable.

In some embodiments, referring to fig. 16-17, the film wrapping device capable of precisely cutting at fixed distance further comprises a pressing mechanism 7, wherein the pressing mechanism 7 comprises a supporting plate 701, a supporting frame 702, a sliding rod cylinder 703, a sliding vertical plate 704, a pressing wheel seat 705, a pressing wheel 706 and a guiding pressing plate 707, the supporting plate 701 is fixedly arranged on one side of the left vertical plate 102 and one side of the right vertical plate 103, the supporting frame 702 is fixedly arranged on the large fixed plate 601, the sliding rod cylinder 703 is fixedly arranged between the supporting plate 701 and the supporting frame 702, the sliding vertical plate 704 is fixedly arranged at the movable end part of the sliding rod cylinder 703, the pressing wheel seat 705 is fixedly arranged on the sliding vertical plate 704, a plurality of groups of pressing wheels 706 are movably arranged on the pressing wheel seat 705, the guiding pressing plate 707 is fixedly arranged on the sliding vertical plate 704, the outer circle of the pressing wheel 706 is tangential to the bottom surface of the guiding pressing plate 707, the pressing wheel 706 is arranged on the upper side of the conveying belt 604, when in use, the pressing wheel 706 is lowered to the upper side of the conveying belt 604, the thickness of the pressing wheel seat is suitable for pressing the film, the film is prevented from being conveyed by the pressing wheel seat or the pressing roller seat is not suitable for the film, and the pressing mechanism is prevented from being moved into the film due to the rolling, and the film wrapping device is suitable for the film, or the film, and the quality is prevented from being moved by the pressing mechanism.

In some embodiments, the precisely distance-cuttable film wrapping apparatus described with reference to fig. 18 further comprises a discharge mechanism 8, the discharging mechanism 8 comprises a discharging seat 801, a roller shaft 802, a roller 803, a discharging motor 804, a pressing rod supporting seat 805, a pressing rod seat 806, a pressing rod 807 and an adjusting handle 808; the discharge seat 801 is fixedly arranged on the welding base 101, the film-coating power roller 106 is arranged at one side far away from the adjustable feeding mechanism 6, the roller shafts 802 are provided with two groups, are respectively and movably arranged on the discharging seat 801, a plurality of groups of rollers 803 are fixedly arranged on the roller shafts 802, one group of roller shafts 802 are fixedly connected with the discharging motor 804, two groups of roller shafts 802 are connected through a belt, the pressure bar support seat 805 is provided with two groups, which are fixedly arranged on the discharge seat 801, the two groups are symmetrically arranged, the pressure bar seat 806 is movably arranged in the pressure bar support seat 805, the pressure rods 807 are movably arranged in two groups of pressure rod seats 806, the adjusting handles 808 are movably arranged on the pressure rod supporting seats 805, and one ends of the adjusting handles are fixedly connected with the pressure rod seats 806; in use, the discharge motor 804 drives the roller shaft 802 to rotate, thereby driving the roller 803 to rotate, driving the belt to rotate, driving the film-covered product to move, and the adjusting handle 808 driving the pressing rod seat 806 to move up and down in the pressing rod supporting seat 805 to adjust the height of the pressing rod 807; by arranging the discharging mechanism, the device comprises a feeding mechanism, the pressure bar supporting seat, the pressure bar and the adjusting handle at the discharge port of the laminated product can improve the running stability of the laminated product at the outlet of the product, and is convenient for adjusting the height of the pressing wheel so as to adapt to products with different heights, thereby comprehensively improving the processing stability of equipment.

In some embodiments, referring to fig. 19, the film wrapping device capable of precise distance cutting further comprises two fixed-length sensors 9, wherein the fixed-length sensors 9 are fixedly arranged on one fixed supporting vertical plate 606 in a tandem arrangement, when in use, products pass through the first fixed-length sensors 9 to leave the first fixed-length sensors 9, the product length is measured, and the second fixed-length sensors are subjected to repeated data comparison to determine the transverse cutting position of the film;

S1, the width adjusting screw rod 613 is driven to rotate by a motor, so that two groups of adjustable supporting plate seats 610 are driven to move in opposite directions, two groups of fixed supporting vertical plates 606 are close to or far away from each other, the feeding width is limited, and the conveying motor 605 drives the conveying belt 604 to rotate, so that products are driven to enter;

S2, the pressure discharge wheel 706 descends to a position which is away from the upper side of the conveying belt 604 by the thickness of the product, and the product enters the film laminating power roller 106 through the conveying belt 604, the pressure discharge wheel 706 and the guide pressure plate 707;

S3, measuring the length of the product from the first group of fixed-length inductors 9 to the position away from the first group of fixed-length inductors 9, and comparing retest data in the second group to determine the transverse cutting position of the laminated film;

S4, the roller motor 108 rotates, so that the belt 110 on the belt wheel 109 fixedly arranged at the left end part of the film coating power roller 106 and the end part of the roller motor 108 is movably connected, and power is transmitted to drive the film coating power roller to rotate;

S5, the pressing wheel cylinder 204 acts, and the middle connecting rod 205 drives the guide block 203 to linearly reciprocate up and down along the guide linear rail 202, so that the film coating pressing wheel 207 on the floating joint 206 is driven to linearly reciprocate up and down along the guide linear rail 202, and approaches to or departs from the film coating power roller 106;

S6, the film roller 307 with the required width is sleeved on the air supporting film rod 306, the air supporting film rod is pneumatically tensioned to fix the film roller 307, the rotating motor 304 rotates to drive the upper group of film rollers 307 and the lower group of film rollers 307 to rotate in opposite directions, and the film passes through the two groups of anti-curling limiters 313 which are symmetrically arranged after passing through the primary auxiliary rod 308, passes through the secondary auxiliary rod 309 and enters the tangential position of the film laminating pinch roller 207 and the film laminating power roller 106;

S7, the cutting pushing cylinder 402 acts, the cutter connecting block 403 drives the transverse cutter 405 on the cutter seat 404 to move linearly downwards along the axis direction of the auxiliary guide rod 407, and the transverse cutter seat 401 contacts the transverse cutter, so that the transverse cutting action of the film is completed and then the film is retracted;

S8, the linear motor 504 drives the mover sliders 506 on the stator rail 505 to linearly move, so that two groups of mover sliders 506 on the same group of stator rail 505 are driven to move in opposite directions, different mover sliders 506 on the stator rail 505 synchronously move, different up-down synchronous cutting widths are adjusted, the cutting wheel motor 508 drives the longitudinal cutting wheel 509 to rotate, the film is longitudinally cut, and the longitudinal cutting adjusting motor 510 adjusts the linear movement of the mover sliders 506 on the stator rail 505 through the adjusting screw 511 to adapt to the film of products with different thicknesses;

S9, the discharging motor 804 drives the roller shaft 802 to rotate, so as to drive the roller 803 to rotate, drive the belt to rotate, drive the film-covered product to move, and the adjusting handle 808 drives the pressure bar seat 806 to move up and down in the pressure bar supporting seat 805 to adjust the height of the pressure bar 807;

It is apparent that the above examples are merely illustrative of the present invention and are not limiting of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. And obvious changes and modifications which come within the spirit of the invention are desired to be protected.

Claims

1. A film wrapping device capable of precisely spacing cutting is characterized by comprising a film wrapping main body mechanism (1), wherein the film wrapping main body mechanism (1) comprises a welding base (101), a left vertical plate (102), a right vertical plate (103), a top plate (104), a roller bearing seat (105), a film wrapping power roller (106), a roller motor seat (107), a roller motor (108), a belt wheel (109) and a belt (110), the left vertical plate (102) and the right vertical plate (103) are fixedly arranged on the welding base (101) and symmetrically arranged in opposite directions, the top plate (104) is fixedly arranged on the left vertical plate (102) and the right vertical plate (103), the roller bearing seat (105) is provided with two groups, each group is provided with a plurality of roller bearing seats, the two groups of film wrapping power roller (106) are symmetrically and fixedly arranged on the outer sides of the left vertical plate (102) and the right vertical plate (103), axes of the roller bearing seats are parallel at the same horizontal plane, the roller motor seat (107) is fixedly arranged on the left vertical plate (102) and the belt wheel (108) is fixedly arranged on the end part of the roller bearing seat (106), transmitting power;

The pressing wheel mechanism (2) for pressing the film and the product is fixedly arranged on the film-covered main body mechanism (1);

a film coating supporting mechanism (3) for supporting a film coating is fixedly arranged on the film coating main body mechanism (1).

2. The film wrapping device capable of precisely spacing cutting according to claim 1, wherein the pressing wheel mechanism (2) comprises pressing wheel avoiding grooves (201), guide straight line rails (202), guide blocks (203), pressing wheel cylinders (204), middle connecting rods (205), floating connectors (206) and film wrapping pressing wheels (207), a plurality of groups of pressing wheel avoiding grooves (201) are symmetrically formed in the left vertical plate (102) and the right vertical plate (103), the guide straight line rails (202) are provided with a plurality of groups, the guide straight line rails (202) are symmetrically and fixedly arranged on the outer sides of the left vertical plate (102) and the right vertical plate (103), one side of each pressing wheel avoiding groove (201) is movably provided with a guide block (203) through a sliding block, so that the guide blocks (203) reciprocate up and down along the guide straight line rails (202), the pressing wheel cylinders (204) are fixedly arranged on the top plate (104), one ends of the middle connecting rods (205) are fixedly connected with the output ends of the pressing wheel cylinders (204), the other ends of the middle connecting rods are fixedly connected with the guide blocks (203), the floating connectors (203) are fixedly arranged on one ends of the guide blocks (203), the laminating pinch rollers (207) are movably arranged in two groups of floating joints (206) which are oppositely and symmetrically arranged, and the laminating pinch rollers (207) are arranged right above the laminating power roller (106).

3. The film wrapping device capable of precisely spacing cutting according to claim 2, wherein the film wrapping supporting mechanism (3) comprises a supporting large vertical plate (301), a supporting angle seat (302), a rotating motor seat (303), a rotating motor (304), a film rod bearing seat (305), an air supporting film rod (306), a film roller (307), a primary auxiliary rod (308), a secondary auxiliary rod (309), a curling adjusting seat (310), a width adjusting long groove (311), an anti-curling fixing seat (312) and an anti-curling limit stopper (313), the supporting large vertical plate (301) is fixedly arranged on the welding base (101) through the supporting angle seat (302), the rotating motor seat (303) is provided with two groups which are respectively fixedly arranged on the outer side of the supporting large vertical plate (301), a group of top and a group of bottom are symmetrically arranged relative to a tangential plane of the film pressing wheel (207) and the film covering power roller (106), the rotating motor (304) is fixedly arranged on the rotating bearing seat (303), the film rod (305) is fixedly arranged on the rotating motor seat, the supporting large vertical plate (305) is fixedly arranged on one end of the same shaft of the rotating motor seat (304) and is fixedly connected with the rotating motor seat (304) through the supporting angle seat (302), the film roll (307) is fixedly arranged on the air supporting film rod (306), one side of each air supporting film rod (306) is respectively provided with a primary auxiliary rod (308) and a secondary auxiliary rod (309) in front and back, the axes of the air supporting film rods (306) are parallel, the hemming adjusting seat (310) is fixedly arranged on the inner side of the supporting large vertical plate (301), a plurality of groups of the width adjusting long grooves (311) are formed in the hemming adjusting seat (310), a plurality of groups of hemming preventing fixing seats (312) are fixedly arranged on the width adjusting long grooves (311), and two opposite symmetrical hemming preventing limiters (313) are fixedly arranged on each group of the hemming preventing fixing seats (312).

4. The laminating packaging device capable of precisely cutting at fixed intervals according to claim 3, further comprising a transverse fixed-length cutting mechanism (4), wherein the transverse fixed-length cutting mechanism (4) comprises a transverse cutting seat (401), a cutting pushing cylinder (402), a cutter connecting block (403), a cutter seat (404), a transverse cutter (405), an auxiliary bearing seat (406) and an auxiliary guide rod (407), the transverse cutting seat (401) is fixedly arranged on the welding base (101), the cutter pushing cylinder (402) is fixedly arranged on the top plate (104), the cutter seat (404) is fixedly connected with the output end of the cutter pushing cylinder (402) through the cutter connecting block (403), the transverse cutter (405) is fixedly arranged on the cutter seat (404), the auxiliary bearing seat (406) is provided with a plurality of groups and is fixedly arranged on the top plate (104), and the auxiliary guide rod (407) is movably arranged in the auxiliary bearing seat (406) and one end of the auxiliary guide rod is fixedly connected with the cutter seat (407).

5. The film wrapping device capable of precisely cutting at fixed intervals according to claim 4, further comprising a longitudinal fixed-length cutting mechanism (5), wherein the longitudinal fixed-length cutting mechanism (5) comprises a fixed block (501), a directional straight rail (502), a sliding block (503), a linear motor (504), a stator rail (505), a rotor sliding block (506), a cutting wheel seat (507), a cutting wheel motor (508), a longitudinal cutting wheel (509), a longitudinal cutting adjusting motor (510) and an adjusting screw (511), the linear motor (504) is provided with two groups, which are respectively and fixedly arranged at one end of the two groups of stator rails (505), each group of stator rails (505) is movably provided with two groups of rotor sliding blocks (506), each group of rotor sliding blocks (506) is fixedly provided with a cutting wheel seat (507), the cutting wheel motor (508) is fixedly arranged on the cutting wheel seat (507), the motor shaft end is fixedly provided with a longitudinal cutting wheel (509), one group of linear motor (504) is fixedly arranged between the left and right vertical plates (103) and the other vertical plates (103) through the fixed block (103), the two groups of stator rails (505) are arranged in parallel, longitudinal cutting wheels (509) on each group of rotor sliding blocks (506) are symmetrically arranged in opposite directions, a longitudinal cutting adjusting motor (510) is fixedly arranged on the top plate (104), one end of an adjusting screw rod (511) is fixedly connected with the longitudinal cutting adjusting motor (510), and the other end of the adjusting screw rod is movably connected with the stator rails (505) on the sliding blocks (503) through nuts.

6. The film wrapping device capable of being cut at a fixed distance according to claim 5, further comprising an adjustable feeding mechanism (6), wherein the adjustable feeding mechanism (6) comprises a fixed large plate (601), a belt supporting seat (602), a belt rolling seat (603), a conveying belt (604), a conveying motor (605), a fixed supporting vertical plate (606), an auxiliary supporting wheel (607), a sliding rod supporting seat (608), a sliding rod (609), an adjustable supporting seat (610), an adjustable supporting vertical plate (611), a width-adjusting bearing seat (612) and a width-adjusting screw rod (613), the fixed large plate (601) is fixedly arranged on the welding base (101), one side of the film-covering power roller (106) is provided with two groups, two ends of the fixed large plate (601) are respectively fixedly arranged on the belt supporting seat (602), the conveying belt (604) is movably connected with the conveying belt (604) through two groups of the two groups of belt rolling seats through the motor (603) in a moving direction parallel to the conveying belt supporting wheels (604), the adjustable support device comprises a fixed support vertical plate (606), a plurality of groups of auxiliary support wheels (607) are movably arranged on the fixed support vertical plate (606), a plurality of groups of slide bar support seats (608) are arranged on the fixed large plate (601), slide bars (609) are movably arranged in the slide bar support seats (608), the axis of each slide bar is perpendicular to the moving direction of a conveying belt (604), two groups of adjustable support seats (610) are arranged on the slide bars (609) through sliding blocks, the two groups of adjustable support vertical plates (611) are arranged on the outer sides of the fixed support vertical plate (606), a plurality of groups of auxiliary support wheels (607) are movably arranged on the adjustable support seats (610), two groups of adjustable support seats (612) are respectively arranged on the fixed large plate (601), and an adjustable lead screw (613) is sleeved in the adjustable support seats (612) and is driven by a motor and is arranged in parallel to the slide bars (609), and the adjustable support seats (610) are arranged on the adjustable lead screw (613) through movable nuts.

7. The film wrapping device capable of precisely cutting at fixed intervals according to claim 6, further comprising a pressing mechanism (7), wherein the pressing mechanism (7) comprises a supporting plate (701), a supporting frame (702), a sliding rod cylinder (703), a sliding vertical plate (704), a pressing wheel seat (705), a pressing wheel (706) and a guiding pressing plate (707), the supporting plate (701) is fixedly arranged on one side of the left vertical plate (102) and one side of the right vertical plate (103), the supporting frame (702) is fixedly arranged on the large fixed plate (601), the sliding rod cylinder (703) is fixedly arranged between the supporting plate (701) and the supporting frame (702), the sliding vertical plate (704) is fixedly arranged at the movable end part of the sliding rod cylinder (703), the pressing wheel seat (705) is fixedly arranged on the sliding vertical plate (704), a plurality of groups of pressing wheels (706) are movably arranged on the pressing wheel seat (705), the guiding pressing plate (707) is fixedly arranged on the sliding vertical plate (102), and the pressing wheel (706) is arranged on the bottom surface of the belt (706) in a tangential mode.

8. The film wrapping device capable of precisely cutting at fixed intervals according to claim 7, wherein the film wrapping device capable of precisely cutting at fixed intervals further comprises a discharging mechanism (8), the discharging mechanism (8) comprises a discharging seat (801), a roller shaft (802), a roller (803), a discharging motor (804), a pressure bar supporting seat (805), a pressure bar seat (806), a pressure bar (807) and an adjusting handle (808), the discharging seat (801) is fixedly arranged on the welding seat (101), the film covering power roller (106) is far away from one side of the adjustable feeding mechanism (6), the roller shaft (802) is provided with two groups, respectively and movably arranged on the discharging seat (801), the roller shaft (802) is fixedly provided with a plurality of groups of rollers (803), the end parts of the roller shaft (802) are fixedly connected with the discharging motor (804), the two groups of roller shafts (802) are connected through belts, the pressure bar supporting seat (805) is provided with two groups, the discharging seat (801) is fixedly arranged on the pressure bar supporting seat (801), the two groups of rollers (805) are symmetrically arranged in the pressure bar supporting seat (805), the two groups of pressure bar supporting seat (805) are movably arranged in the pressure bar (805), one end of the pressure rod seat (806) is fixedly connected with the pressure rod seat.

9. The precisely fixed cutting film packaging device according to claim 8, further comprising two fixed-length sensors (9), wherein the fixed-length sensors (9) are fixedly arranged on one fixed supporting vertical plate (606) in a tandem mode.

10. The method of using a precisely fixed distance cut film wrapping device according to claim 9, comprising the steps of:

s1, driving the width adjusting screw rod (613) to rotate through a motor so as to drive two groups of adjustable supporting plate seats (610) to move in opposite directions, wherein the two groups of adjustable supporting plate seats are close to or far away from two groups of fixed supporting vertical plates (606) to limit the feeding width, and driving the conveying belt (604) to rotate through the conveying motor (605) so as to drive products to enter;

s2, the pressure discharge wheel (706) descends to a position, which is away from the upper side of the conveying belt (604), of the thickness of the product, and the product enters the film-covered power roller (106) through the conveying belt (604), the pressure discharge wheel (706) and the guide pressure plate (707);

S3, measuring the length of the product from the first group of fixed-length inductors (9) to the position away from the first group of fixed-length inductors (9), and comparing retest data in the second group to determine the transverse cutting position of the laminated film;

S4, the roller motor (108) rotates, so that the belt (110) on a belt wheel (109) fixedly arranged at the left end part of the film coating power roller (106) and the end part of the roller motor (108) is movably connected, power is transmitted, and the film coating power roller is driven to rotate;

S5, the pressing wheel cylinder (204) acts, the middle connecting rod (205) drives the guide block (203) to linearly reciprocate up and down along the guide linear rail (202), so that the film coating pressing wheel (207) on the floating joint (206) is driven to linearly reciprocate up and down along the guide linear rail (202) and approach or depart from the film coating power roller (106);

S6, the film roller (307) with the required width is sleeved on the air supporting film rod (306), the air supporting film rod is pneumatically tensioned and fixed to the film roller (307), the rotating motor (304) rotates to drive the upper group of film rollers (307) and the lower group of film rollers to rotate in opposite directions, and after the film passes through the primary auxiliary rod (308) and passes through the two groups of anti-curling limiters (313) which are symmetrically arranged, the film passes through the secondary auxiliary rod (309) and enters the tangential position of the film pressing wheel (207) and the film covering power roller (106);

S7, the cutting pushing cylinder (402) acts, the cutter connecting block (403) drives the transverse cutter (405) on the cutter seat (404) to move linearly downwards along the axial direction of the auxiliary guide rod (407), and the transverse cutter moves backwards after the transverse cutting of the film is completed after the contact of the transverse cutter seat (401);

S8, the linear motor (504) drives the mover sliders (506) on the stator rail (505) to linearly move, so that two groups of mover sliders (506) on the same group of stator rail (505) are driven to move in opposite directions, the mover sliders (506) on different stator rails (505) synchronously move, different up-down synchronous cutting widths are adjusted, the cutting wheel motor (508) drives the longitudinal cutting wheel (509) to rotate, the film is longitudinally cut, and the longitudinal cutting adjusting motor (510) adjusts the mover sliders (506) on the stator rail (505) to linearly move through the adjusting screw rods (511) so as to adapt to the film of products with different thicknesses;

s9, the discharging motor (804) drives the roller shaft (802) to rotate, so that the roller (803) is driven to rotate, the belt is driven to rotate, the film-covered product is driven to move, the regulating handle (808) drives the pressure rod seat (806) to move up and down in the pressure rod supporting seat (805), and the height of the pressure rod (807) is regulated.