CN118125190A - Breakage-proof winding machine for winding PET (polyethylene terephthalate) film - Google Patents

Abstract

The invention discloses an anti-breaking winding machine for winding a PET film, which relates to the technical field of film winding machines and comprises two groups of adjusting mechanisms and a feeding mechanism, wherein two groups of supporting plates are arranged on a chassis, two groups of conveying mechanisms are rotatably arranged on the supporting plates, the two groups of adjusting mechanisms are arranged between the two groups of conveying mechanisms, the two groups of adjusting mechanisms are rotatably arranged on the supporting plates, height differences exist between adjusting rollers of the two groups of adjusting mechanisms, the two groups of adjusting mechanisms are respectively and slidably arranged on adjusting grooves of the supporting plates, the ends of the two groups of adjusting rollers are slidably arranged on balancing grooves of balancing sliding rods, the rotating directions of the two groups of adjusting mechanisms are opposite, the feeding mechanism is slidably arranged on a supporting frame, and a self-locking mechanism is arranged at the end of a feeding shaft. The beneficial effects of the invention are as follows: the slope of the balance slide bar is changed by utilizing the adjusting mechanism, so that the allowance of the PET film is increased, and the breakage of the PET film in the winding process is prevented; the self-locking mechanism and the feeding mechanism realize feeding and discharging of the winding roller, and the degree of automation is higher.

Description

Breakage-proof winding machine for winding PET (polyethylene terephthalate) film

Technical Field

The invention relates to the technical field of film winding machines, in particular to an anti-fracture winding machine for winding PET films.

Background

The PET film is a packaging film with relatively comprehensive performance. The transparent glass has good transparency and luster; has good air tightness and fragrance retention; moisture resistance is moderate and moisture permeability decreases at low temperatures. The mechanical properties of PET film are excellent, the toughness is the best among all thermoplastics, and the tensile strength and impact strength are much higher than those of common films.

The toughness of the PET film is the best of all thermoplastic plastics, but in the production winding process, the winding speed of the PET film is gradually increased along with the expansion of the winding diameter until the winding speed is higher than the production speed of the PET film, and the PET film is tensioned at the moment and has the risk of breakage.

The prior art publication No. CN109095238A discloses a PET film winding machine, which comprises a frame, a guide roller assembly, a tension roller assembly, a slitting assembly, a traction roller assembly, a winding device, a film breaking device, a film rolling device and a turnover device which are sequentially arranged on the frame. The invention combines the physical characteristics of the PET film and the thickness of the film, and rapidly winds the PET film on the premise of ensuring the quality of the film, and simultaneously solves the winding problems that burrs are generated by slitting the film, the fracture of the PET film is not smooth enough and the wound film is easy to unwind when the film is broken.

In the prior art, although burrs are generated when the PET film is cut, the fracture of the PET film is not smooth enough and the film roll after the winding is easy to loosen during film breakage, the problem that the PET film is easy to break during winding still cannot be solved, and the problem that the winding roller automatically feeds cannot be realized, so that an anti-breaking winding machine for winding the PET film is urgently needed.

Disclosure of Invention

Aiming at the technical problems, the invention adopts the following technical scheme: the utility model provides a PET film rolling is with preventing rolling machine that breaks, including two sets of adjustment mechanism, feed mechanism, still include supporting mechanism, self-locking mechanism, supporting mechanism includes chassis, support frame, is provided with two sets of backup pads on the chassis, support frame fixed mounting is in first set of backup pad tip, second set of backup pad slidable mounting is on the chassis, rotate in the backup pad and install two sets of transport mechanism, two sets of adjustment mechanism set up between two sets of transport mechanism, two sets of adjustment mechanism rotate and install in the backup pad, have the difference in height between two sets of adjustment mechanism's the dancer roll, symmetrical rotation installs balanced slide bar in the backup pad, two sets of adjustment mechanism respectively slidable mounting is on the adjustment groove of backup pad, two sets of dancer roll tip slidable mounting is on balanced slide bar's balance groove, be provided with drive mechanism in the backup pad of first set, drive mechanism connects two sets of adjustment mechanism and two sets of transport mechanism, two sets of transport mechanism's rotation direction are opposite, feed mechanism slides and sets up on the support frame, feed mechanism includes camshaft, feed axle, and the last motor of sliding arrangement has the feed motor, and the self-locking spring block corresponds on the self-locking spring block, and self-locking spring is installed to the self-locking spring end portion, and is installed to the self-locking spring and is corresponding on the self-locking spring.

Further, the supporting mechanism further comprises a shifting gear and a rack, the baffle is fixedly arranged at the tail of the chassis and arranged between the two groups of supporting plates, the shifting gear is rotatably arranged on the baffle, the rack is fixedly arranged on the second group of supporting plates, the baffle is meshed with the rack, and a cutting knife is fixedly arranged at the end part of the chassis. The rack is driven to move when the shift gear rotates, the rack drives the second group of support plates to move, the distance between the two groups of support plates is increased, the PET film is conveniently introduced into the adjusting mechanism and the conveying mechanism by workers, and the feeding mechanism is convenient to roll.

Further, the transport mechanism comprises a main transport roller and a secondary transport roller, wherein two ends of the main transport roller are rotatably arranged on a supporting plate, a main transport gear is fixed at the end part of the main transport roller, two ends of the secondary transport roller are rotatably arranged on the supporting plate, a secondary transport gear is fixedly arranged at the end part of the secondary transport roller, the main transport gear and the secondary transport gear are arranged inside a first group of supporting plates, and the main transport gear is meshed with the secondary transport gear. When the main conveying roller rotates, the auxiliary conveying roller is driven to rotate under the action of the main conveying gear and the auxiliary conveying gear, and the rotating direction of the main conveying roller is opposite to that of the auxiliary conveying roller.

Further, the adjusting mechanism comprises an adjusting roller and two groups of adjusting pins, two groups of adjusting grooves are formed in each group of supporting plates, the adjusting pins are respectively and slidably arranged on the corresponding adjusting grooves in the two groups of supporting plates, two ends of the adjusting roller are rotatably arranged on the corresponding adjusting pins in the two groups of supporting plates, and an adjusting spring is arranged between each adjusting pin and each supporting plate. When the PET film is tensioned, the PET film extrudes two groups of adjusting rollers, so that adjusting pins at two ends of the adjusting rollers slide on the adjusting grooves in opposite directions, and the adjusting springs are compressed; the two groups of regulating rollers drive the balance slide bars to rotate on the support plate, so that the slope of the balance slide bars is changed; when the PET film has the allowance, the PET film is loosened, the two groups of regulating rollers are not extruded any more, the regulating springs are stretched, the regulating pins drive the two groups of regulating rollers to reversely slide, and the PET film is continuously flattened.

Further, a sensor is arranged on the balance slide bar, a signal receiver is arranged on the feeding motor, and when the slope of the balance slide bar is 0, the signal receiver controls the feeding motor to be closed.

Further, the feeding mechanism further comprises a limiting disc, the limiting disc is rotatably arranged on the cam shaft, a limiting rod is arranged on the limiting disc, the feeding shaft is slidably arranged on the limiting rod, a curve groove is formed in the cam shaft, a sliding column is arranged in the cam shaft, and the sliding column is slidably arranged on the curve groove.

Further, the supporting mechanism further comprises a limiting pin, the supporting frame is provided with a fixing pin, the limiting pin is rotatably arranged on the fixing pin, the limiting disc is provided with a limiting groove, and the limiting pin is in a horizontal state when not subjected to external force and is meshed with the limiting groove. When the limiting pin is meshed with the limiting groove, the limiting pin limits the rotation of the limiting disc, and when the feeding motor drives the cam shaft to rotate, the feeding shaft is driven to move on the cam shaft and the limiting rod under the action of the curve groove and the sliding column.

Further, the self-locking mechanism further comprises a self-locking rod and a reset rod, the reset rod is slidably arranged at the end part of the feeding shaft, the reset rod is coaxial with the feeding shaft, a group of self-locking blocks correspond to a group of self-locking rods, the first end of the self-locking rod is rotatably arranged at the bottom of the self-locking blocks, the second end of the self-locking rod is rotatably arranged at the bottom of the reset rod, and a reset spring is arranged between the end part of the reset rod and the feeding shaft. When the winding roller automatically feeds, when the self-locking blocks are extruded by the winding roller, a plurality of groups of self-locking blocks move towards the center of the feeding shaft, the self-locking springs are compressed, the self-locking springs push the reset rod to move towards the inside of the feeding shaft along the central shaft of the feeding shaft through the self-locking rod, the reset springs are compressed, when the self-locking mechanism leaks out of the winding roller, the winding roller breaks extrusion of the self-locking blocks, and under the action of the self-locking springs and the reset springs, the self-locking blocks restore to the initial positions, so that feeding of the winding roller is completed; on the contrary, when the reset rod is extruded, the reset spring is compressed, the reset rod drives a plurality of groups of self-locking blocks to move towards the center of the feeding shaft through the self-locking rod, the self-locking spring is compressed, the fixing of the winding roller is disconnected, and the winding roller for winding the PET film is taken down.

Compared with the prior art, the invention has the beneficial effects that: (1) According to the regulating mechanism provided by the invention, the regulating pins at the two ends of the regulating roller slide on the regulating groove in opposite directions, the regulating springs are compressed, the two groups of regulating rollers drive the balance slide bars to rotate on the supporting plate, the slope of the balance slide bars is changed, and the allowance of the PET film is increased, so that the PET film is prevented from being broken in the winding process; (2) According to the PET film feeding mechanism, the shifting gear and the rack are arranged, the rack is driven to move when the shifting gear rotates, the rack drives the second group of supporting plates to move, the distance between the two groups of supporting plates is increased, a worker can conveniently introduce the PET film onto the adjusting mechanism and the conveying mechanism, and the feeding mechanism can conveniently roll the PET film; (3) The supporting frame and the stretching spring are arranged to assist, and the cutting and blanking of the PET film are automatically realized by utilizing the action of gravity; (4) The feeding mechanism provided by the invention realizes automatic feeding of the winding roller, and the cooperation between the structures is ingenious, so that the labor force is saved; (5) The self-locking mechanism provided by the invention realizes the feeding and discharging of the wind-up roll, and has higher degree of automation; (6) According to the balance slide bar, the feeding motor stops rotating while the tension degree of the PET film is regulated by the regulating mechanism, so that the PET film is further prevented from being broken in the winding process.

Drawings

Fig. 1 is a schematic view of a first view of the overall structure of the present invention.

FIG. 2 is a schematic illustration of the overall structure of the present invention with the loading chute removed.

FIG. 3 is a schematic diagram of the wind-up roll of the present invention after loading.

Fig. 4 is a front view of fig. 3.

Fig. 5 is a right side view of fig. 3.

Fig. 6 is a cross-sectional view taken along the direction A-A in fig. 4.

Fig. 7 is a cross-sectional view in the direction B-B of fig. 5.

Fig. 8 is a partial enlarged view of a portion a in fig. 2.

Fig. 9 is a partial enlarged view of a portion B in fig. 6.

Fig. 10 is a partial enlarged view of a portion C in fig. 7.

Fig. 11 is a partial enlarged view of a portion D in fig. 6.

Fig. 12 is a partial enlarged view of a portion E in fig. 7.

Reference numerals: 11-chassis; 12-supporting plates; 13-supporting frames; 14-cutting knife; 15-limiting pins; 16-a shifting gear; 17-baffle; 18-rack; 19-adjusting the motor; 111-track; 121-an adjustment tank; 131-arc rail; 132-motor rails; 133-fixing pins; 151-diagonal bar; 21-a regulating roller; 22-adjusting pins; 23-adjusting the spring; 3-balancing the slide bar; 31-balancing grooves; a 32-sensor; 41-main transport rollers; 42-from the transport rollers; 411-main transport gear; 421—from the transport gear; 5-a wind-up roll; 611-a main gear; 612-a transmission gear; 613-a connecting rod; 621—a slave gear; 622-power gear; 623-a drive rod; 631-pulleys; 632-belt; 71-self locking block; 72-self-locking spring; 73-self locking bar; 74-a return spring; 75-reset lever; 81-a camshaft; 82-limiting plate; 83-a feeding shaft; 84-feeding motor; 85-stretching a spring; 811-a curved slot; 821-limit rods; 822-a limit groove; 831-self locking groove; 832-slide column; 9-feeding grooves; 91-cylindrical groove.

Detailed Description

The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.

Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to be limiting of the present patent; for the purpose of better illustrating embodiments of the invention, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Examples: the anti-breaking winding machine for winding PET film as shown in figures 1-12 comprises two groups of adjusting mechanisms and feeding mechanisms, and further comprises a supporting mechanism and a self-locking mechanism, wherein the supporting mechanism comprises a chassis 11 and a supporting frame 13, two groups of supporting plates 12 are arranged on the chassis 11, the supporting frame 13 is fixedly arranged at the end part of the first group of supporting plates 12, the second group of supporting plates 12 are slidably arranged on the chassis 11, two groups of conveying mechanisms are rotatably arranged on the supporting plates 12, the two groups of adjusting mechanisms are arranged between the two groups of conveying mechanisms, the two groups of adjusting mechanisms are rotatably arranged on the supporting plates 12, the adjusting rollers 21 of the two groups of adjusting mechanisms have a height difference, balance slide rods 3 are symmetrically rotatably arranged on the supporting plates 12, the two groups of adjusting mechanisms are slidably arranged on the adjusting grooves 121 of the supporting plates 12 respectively, the end parts of the two groups of adjusting rollers 21 are slidably arranged on the balance grooves 31 of the balance slide rods 3, the first group of supporting plates 12 are provided with a transmission mechanism, the transmission mechanism is connected with two groups of adjusting mechanisms and two groups of conveying mechanisms, the rotation directions of the two groups of adjusting mechanisms are opposite, the rotation directions of the two groups of conveying mechanisms are the same, the feeding mechanism is arranged on the supporting frame 13 in a sliding way, the feeding mechanism comprises a cam shaft 81 and a feeding shaft 83, the supporting frame 13 is provided with a feeding motor 84 in a sliding way, an extension spring 85 is arranged between the feeding motor 84 and the first group of supporting plates 12, the cam shaft 81 is fixedly arranged on an output shaft of the feeding motor 84, the feeding shaft 83 is arranged on the cam shaft 81 in a sliding way, the self-locking mechanism is arranged at the end part of the feeding shaft 83 and comprises a plurality of groups of self-locking blocks 71 and self-locking springs 72, the self-locking blocks 71 are arranged on self-locking grooves 831 at the end part of the feeding shaft 83 in a sliding way, one group of self-locking blocks 71 correspond to one group of self-locking springs 72, the self-locking spring 72 is disposed between the self-locking groove 831 and the self-locking block 71.

As shown in fig. 1,2, 6, 8, 9 and 10, the supporting mechanism comprises a chassis 11, a supporting plate 12, a supporting frame 13, a cutting knife 14, a limiting pin 15, a shifting gear 16, a baffle 17, a rack 18 and an adjusting motor 19; the two groups of support plates 12 are arranged, a track 111 is arranged on the chassis 11, the first group of support plates 12 are fixedly arranged on the first side of the chassis 11, the second group of support plates 12 are arranged opposite to the first group of support plates 12, the second group of support plates 12 are slidably arranged on the track 111, a baffle 17 is fixedly arranged at the tail part of the chassis 11, the baffle 17 is arranged between the two groups of support plates 12, an adjusting motor 19 is fixedly arranged on the baffle 17, a shifting gear 16 is rotatably arranged on the baffle 17, the shifting gear 16 is fixedly arranged with an output shaft of the adjusting motor 19, and the adjusting motor 19 drives the shifting gear 16 to rotate; the rack 18 is fixedly arranged on the second group of support plates 12, the baffle 17 is meshed with the rack 18, the rack 18 is driven to move when the shift gear 16 rotates, the rack 18 drives the second group of support plates 12 to move, the distance between the two groups of support plates 12 is increased, a worker can conveniently introduce PET films onto the adjusting mechanism and the conveying mechanism, and the winding roller 5 on the feeding mechanism can conveniently wind; the cutting knife 14 is fixedly arranged at the end part of the chassis 11, the supporting frame 13 is fixedly arranged at the end part of the first group of supporting plates 12, the supporting frame 13 is provided with an arc rail 131, a motor rail 132 and a fixing pin 133, the limiting pin 15 is rotatably arranged on the fixing pin 133, and the limiting pin 15 is in a horizontal state when no external force is applied to the limiting pin 15.

As shown in fig. 2, 5, 7, 8, 10 and 11, the feeding mechanism comprises a cam shaft 81, a limiting disc 82, a feeding shaft 83, a feeding motor 84 and a tension spring 85; the feeding motor 84 is slidably mounted on a motor rail 132 of the supporting frame 13, the tension spring 85 is arranged between the first group of supporting plates 12 and the feeding motor 84, a first end of the tension spring 85 is rotatably mounted on the first group of supporting plates 12, a second end of the tension spring 85 is rotatably mounted on the feeding motor 84, the cam shaft 81 is slidably mounted on the arc rail 131, the cam shaft 81 is fixedly mounted with an output shaft of the feeding motor 84, and the feeding motor 84 drives the cam shaft 81 to rotate; the limiting disc 82 is rotatably mounted on the cam shaft 81, the limiting disc 82 is coaxial with the cam shaft 81, the limiting disc 82 is provided with a limiting rod 821 and a limiting groove 822, the limiting pin 15 is in a horizontal state when not subjected to external force and is meshed with the limiting groove 822, the limiting pin 15 limits the rotation of the limiting disc 82, the feeding shaft 83 is slidably mounted on the cam shaft 81, the feeding shaft 83 is coaxial with the limiting disc 82, the feeding shaft 83 is slidably mounted on the limiting rod 821, the cam shaft 81 is provided with a curve groove 811, a sliding column 832 is arranged in the cam shaft 81, the sliding column 832 is slidably mounted on the curve groove 811, and when the limiting pin 15 is meshed with the limiting groove 822, the cam shaft 81 is rotated, and the feeding shaft 83 is driven to slide on the cam shaft 81 and the limiting rod 821 under the action of the curve groove 811 and the sliding column 832; the limiting pin 15 is provided with an inclined rod 151, and when the first end of the wind-up roller 5 on the feeding shaft 83 is in contact with the limiting disc 82, the wind-up roller 5 pushes the limiting pin 15 to move upwards through the inclined rod 151, so that the limit of the limiting pin 15 to the limiting disc 82 is broken; along with the increase of the PET film on the winding roller 5 on the feeding shaft 83, under the action of gravity, the feeding motor 84 is driven to slide on the supporting frame 13 by the cam shaft 81 until the unreeled PET film contacts with the cutting knife 14, the cutting knife 14 cuts off the PET film, and after the winding roller 5 is taken down, the stretching spring 85 assists the feeding motor 84 to restore to the initial position.

As shown in fig. 1, 2 and 3, the feeding groove 9 is disposed near the second set of support plates 12, a cylindrical groove 91 is disposed at the bottom of the feeding groove 9, the wind-up roller 5 is disposed inside the feeding groove 9, the wind-up roller 5 falls into the cylindrical groove 91 under the action of gravity, and the wind-up roller 5 inside the cylindrical groove 91 is coaxial with the feeding shaft 83.

As shown in fig. 6, 7, 11 and 12, the self-locking mechanism comprises a self-locking block 71, a self-locking spring 72, a self-locking rod 73, a reset spring 74 and a reset rod 75, wherein the self-locking block 71 is provided with a plurality of groups, the end part of a feeding shaft 83 is provided with a plurality of self-locking grooves 831, the self-locking block 71 is slidably arranged on the self-locking grooves 831, one group of self-locking blocks 71 corresponds to one group of self-locking springs 72, the self-locking springs 72 are arranged between the self-locking grooves 831 and the self-locking blocks 71, a first end of each self-locking spring 72 is arranged on the self-locking groove 831, a second end of each self-locking spring 72 is arranged on the self-locking block 71, the reset rod 75 is slidably arranged at the end part of the feeding shaft 83, the reset rod 75 and the feeding shaft 83 are coaxial, a group of self-locking blocks 71 correspond to a group of self-locking rods 73, the self-locking rods 73 are connected with the reset rod 75 and the self-locking blocks 71, a first end of each self-locking rod 73 is rotatably arranged at the bottom of each self-locking block 71, a second end of each self-locking rod 73 is rotatably arranged at the bottom of each reset rod 75, a reset spring 74 is arranged between the end part of each reset rod 75 and the feeding shaft 83, and when the self-locking blocks 71 are in a natural state, the distance from the periphery of each self-locking block 71 to the axial center of the feeding shaft 83 is greater than the axial center of a hollow Kong Daoshou winding roller 5 of the winding roller 5; when the winding roller automatically feeds, when the camshaft 81 drives the feeding shaft 83 to move towards the winding roller 5, when the self-locking blocks 71 are extruded by the hollow holes of the winding roller, a plurality of groups of self-locking blocks 71 move towards the center of the feeding shaft 83, the self-locking springs 72 are compressed, the self-locking springs 72 push the reset rod 75 to move towards the inside of the feeding shaft 83 along the central shaft of the feeding shaft 83 through the self-locking rods 73, the reset springs 74 are compressed, when the self-locking mechanism leaks out of the hollow holes, the hollow holes disconnect the extrusion of the self-locking blocks 71, and under the action of the self-locking springs 72 and the reset springs 74, the self-locking blocks 71 restore to the initial positions, so that the winding roller 5 is fed; on the contrary, when the reset rod 75 is extruded, the reset spring 74 is compressed, the reset rod 75 drives the plurality of groups of self-locking blocks 71 to move towards the center of the feeding shaft 83 through the self-locking rod 73, the self-locking spring 72 is compressed, the fixing of the winding roller is disconnected, and the winding roller after the PET film is taken down.

As shown in fig. 1,2 and 5, the two groups of adjusting mechanisms are provided, each group of adjusting mechanism comprises an adjusting roller 21, two groups of adjusting pins 22 and two groups of adjusting springs 23, the adjusting rollers 21 of the two groups of adjusting mechanisms have a height difference, each group of supporting plates 12 is provided with two groups of adjusting grooves 121, the adjusting pins 22 are respectively and slidably arranged on the corresponding adjusting grooves 121 on the two groups of supporting plates 12, two ends of the adjusting roller 21 are rotatably arranged on the corresponding adjusting pins 22 on the two groups of supporting plates 12, the adjusting springs 23 are arranged between the adjusting pins 22 and the supporting plates 12, the first ends of the adjusting springs 23 are fixedly arranged on the adjusting pins 22, the second ends of the adjusting springs 23 are fixedly arranged on the adjusting grooves 121, and when the PET film is tensioned, the PET film extrudes the two groups of adjusting rollers 21, so that the adjusting pins 22 at two ends of the adjusting rollers 21 slide oppositely on the adjusting grooves 121, and the adjusting springs 23 are compressed; the two groups of regulating rollers 21 drive the balance slide bar 3 to rotate on the support plate 12, so that the slope of the balance slide bar 3 is changed; when the PET film has allowance, the PET film is loosened, the two groups of regulating rollers 21 are not extruded any more, the regulating springs 23 are stretched, the two groups of regulating rollers 21 are driven to reversely slide by the regulating pins 22, and the PET film is continuously flattened.

As shown in fig. 1, 2 and 3, the balance slide bars 3 are two groups, the two groups of balance slide bars 3 are symmetrically arranged on the two groups of support plates 12, each group is arranged between two adjusting grooves 121 of the support plate 12, the middle part of the balance slide bar 3 is rotatably arranged on the support plate 12, the two ends of the balance slide bars 3 are provided with balance grooves 31, the end parts of the two groups of adjusting rollers 21 are slidably arranged on the balance grooves 31 of the balance slide bars 3, the balance slide bars 3 are provided with sensors 32, the feeding motor 84 is provided with a signal receiver, and when the slope of the balance slide bars 3 is 0, the sensors 32 transmit signals to the signal receiver, and the signal receiver controls the feeding motor 84 to be closed.

As shown in fig. 1 and 3, two groups of conveying mechanisms are respectively arranged at the end part and the tail part of the supporting plate 12, each conveying mechanism comprises a main conveying roller 41 and a secondary conveying roller 42, two ends of the main conveying roller 41 are rotatably arranged on the supporting plate 12, a motor is arranged on the second group of supporting plate 12, the main conveying roller 41 of one group of conveying mechanisms is fixedly arranged with an output shaft of the motor, a main conveying gear 411 is fixedly arranged at the end part of the main conveying roller 41, two ends of the secondary conveying roller 42 are rotatably arranged on the supporting plate 12, a secondary conveying gear 421 is fixedly arranged at the end part of the secondary conveying roller 42, the main conveying gear 411 and the secondary conveying gear 421 are arranged inside the first group of supporting plate 12, the main conveying gear 411 is meshed with the secondary conveying gear 421, when the main conveying roller 41 rotates, the main conveying roller 41 and the secondary conveying roller 42 are driven to rotate under the action of the main conveying gear 411 and the secondary conveying gear 421, a PET film is positioned between the main conveying roller 41 and the secondary conveying roller 42, and when the main conveying roller 41 and the secondary conveying roller 42 rotate, and the main conveying roller 41 of each group of conveying mechanism is fixedly arranged on the feeding mechanism 5.

As shown in fig. 1 and 5, the transmission mechanism comprises a transmission component one, a transmission component two and a transmission component three, wherein the transmission component one comprises two groups of main gears 611, a transmission gear 612 and two groups of connecting rods 613, the first group of main gears 611 are fixedly installed with the first group of adjusting rollers 21, the second group of main gears 611 are fixedly installed with the main conveying rollers 41 of the transmission mechanism on the tail part of the supporting plate 12, the first ends of the two groups of connecting rods 613 are respectively rotatably installed on the two groups of main gears 611, the transmission gear 612 is rotatably installed on the second ends of the two groups of transmission gears 612, the transmission gear 612 is respectively meshed with the two groups of main gears 611, the second group of main gears 611 are driven to rotate when the main conveying rollers 41 of the transmission mechanism on the tail part of the supporting plate 12 rotate, the second group of main gears 611 drive the first group of main gears 611 through the transmission gears 612, and the first group of main gears 611 drive the first group of adjusting rollers 21 to rotate, so that the first group of adjusting rollers 21 and the main conveying rollers 41 on the tail part of the supporting plate 12 rotate in the same direction, and the axle center distance of the two groups of main gears 611 are adjusted under the action of the connecting rods 613.

As shown in fig. 5, the second transmission assembly includes two sets of slave gears 621, a power gear 622 and a transmission rod 623, wherein the first set of slave gears 621 is fixedly installed with the second set of adjusting rollers 21, the second set of slave gears 621 is fixedly installed with the slave conveying rollers 42 of the conveying mechanism at the end of the support plate 12, the first ends of the two sets of transmission rods 623 are respectively rotatably installed on the two sets of slave gears 621, the power gear 622 is rotatably installed on the second ends of the two sets of transmission gears 612, the power gear 622 is respectively meshed with the two sets of slave gears 621, the second set of slave gears 621 are driven to rotate when the slave conveying rollers 42 of the conveying mechanism at the end of the support plate 12 rotate, the second set of slave gears 621 drive the first set of slave gears 621 to rotate through the power gear 622, and the first set of slave gears 621 drive the second set of adjusting rollers 21 to rotate in the same direction as the main conveying rollers 41 at the end of the support plate 12, and the axle center distances of the two sets of slave gears 621 are adjusted under the action of the transmission rod 623.

As shown in fig. 5, the third transmission assembly comprises two groups of pulleys 631 and a belt 632, the first group of pulleys 631 is fixedly installed with the main transport roller 41 at the tail part of the support plate 12, the second group of pulleys 631 is rotatably installed with the main transport roller 41 at the end part of the support plate 12, the belt 632 is arranged on the two groups of pulleys 631, and when the motor on the support plate 12 drives the main transport roller 41 on the output shaft thereof to rotate, the belt 632 and the pulleys 631 drive the other group of main transport roller 41 to rotate, so that the rotation directions of the two groups of main transport rollers 41 are the same, because the rotation directions of the main transport roller 41 and the auxiliary transport roller 42 of each group of transport mechanism are opposite, and the rotation directions of the two groups of regulating rollers 21 are opposite under the action of the first transmission assembly and the second transmission assembly.

Working principle: the initial position of the feeding mechanism, the tension spring 85 is compressed, the feeding motor 84 is positioned at the highest point of the arc rail 131, the limiting pin 15 is meshed with the limiting groove 822, the limiting pin 15 limits the rotation of the limiting disc 82, the winding roller 5 is placed in the feeding groove 9, the winding roller 5 falls into the cylindrical groove 91 under the action of gravity, the winding roller 5 in the cylindrical groove 91 is coaxial with the feeding shaft 83, when the winding roller automatically feeds, the feeding motor 84 is started, the feeding motor 84 drives the cam shaft 81 to rotate, the limiting disc 82 is in a static state, and when the cam shaft 81 rotates, the feeding shaft 83 is driven to slide on the cam shaft 81 and the limiting rod 821 under the action of the curve groove 811 and the sliding column 832, and the feeding shaft 83 drives the self-locking mechanism to move towards the direction close to the winding roller 5; when the self-locking blocks 71 are extruded by the first ends of the hollow holes of the wind-up roll, a plurality of groups of self-locking blocks 71 move towards the center of the feeding shaft 83, the self-locking springs 72 are compressed, the self-locking springs 72 push the reset rods 75 through the self-locking rods 73, the reset rods 75 move towards the inside of the feeding shaft 83 along the central axis of the feeding shaft 83, the reset springs 74 are compressed, the feeding shaft 83 drives the wind-up roll 5 to continue to move towards the second ends of the hollow holes, when the self-locking mechanism leaks out of the hollow holes, the hollow holes break the extrusion of the self-locking blocks 71, and under the action of the self-locking springs 72 and the reset springs 74, the self-locking blocks 71 restore to the initial positions, and self-locking of the wind-up roll 5 is completed.

Starting the feeding motor 84 to reversely rotate, the feeding motor 84 drives the cam shaft 81 to rotate, under the action of the curve groove 811 and the sliding column 832, the feeding shaft 83 is driven to move towards the direction close to the limit pin 15, when the self-locking block 71 is in a natural state, the distance from the periphery of the self-locking block 71 to the axis of the feeding shaft 83 is greater than the distance from the axis of the hollow Kong Daoshou of the winding roller 5, the feeding shaft 83 drives the winding roller 5 to move towards the direction close to the limit pin 15 through the self-locking block 71 until the winding roller 5 on the feeding shaft 83 is completely separated from the cylinder groove 91, the winding roller 5 in the feeding groove 9 continuously falls, and the winding roller 5 in the cylinder groove 91 waits for feeding.

When the first end of the wind-up roller 5 on the feeding shaft 83 contacts with the limiting disc 82, the wind-up roller 5 pushes the limiting pin 15 to move upwards through the inclined rod 151, the limit of the limiting pin 15 to the limiting disc 82 is disconnected, at this time, the first end of the wind-up roller 5 is in close contact with the limiting disc 82, and the limiting disc 82 and the feeding shaft 83 are driven to rotate simultaneously when the cam shaft 81 rotates, so that the wind-up roller 5 on the feeding shaft 83 rotates.

The regulating motor 19 is started, the regulating motor 19 drives the shift gear 16 to rotate, the shift gear 16 drives the rack 18 to move when rotating, the rack 18 drives the second group of support plates 12 to move, the distance between the two groups of support plates 12 is increased, a worker passes the formed PET film between the main conveying roller 41 and the auxiliary conveying roller 42 of the conveying mechanism at the tail part of the support plate 12, the PET film continues to pass below the first group of regulating rollers 21 and above the second group of regulating rollers 21, and the PET film passes between the main conveying roller 41 and the auxiliary conveying roller 42 of the conveying mechanism at the end part of the support plate 12 and is wound on the winding roller 5 on the feeding shaft 83.

At this time, when the feeding motor 84 rotates, the winding roller 5 on the feeding shaft 83 is driven to rotate, the PET film is wound on the winding roller 5 along with the production of the PET film, the linear speed of winding the PET film on the winding roller 5 is increased along with the increase of the PET film on the winding roller 5, the PET film is tensioned in the process, and when the PET film is tensioned, the PET film extrudes two groups of adjusting rollers 21, so that the adjusting pins 22 at two ends of the adjusting rollers 21 slide on the adjusting grooves 121 in opposite directions, and the adjusting springs 23 are compressed; the two groups of regulating rollers 21 drive the balance slide bar 3 to rotate on the supporting plate 12, the slope of the balance slide bar 3 is changed, when the slope of the balance slide bar 3 is 0, the sensor 32 transmits a signal to a signal receiver on the feeding motor 84, and after the signal is received by the receiver, the feeding motor 84 stops rotating, and the PET film is not wound; at this time, the PET film continues to be produced, the surplus of the PET film on the two groups of adjusting rollers 21 is increased, the PET film is relaxed, the two groups of adjusting rollers 21 are not extruded any more, the adjusting springs 23 are stretched, the two groups of adjusting rollers 21 are driven to reversely slide by the adjusting pins 22, the PET film continues to be leveled until the balance slide bar 3 is restored to the initial position, the sensor 32 transmits signals to the signal receiver, and the feeding motor 84 continues to be started.

The steps are repeated, the PET film is prevented from being broken in the winding process, along with the increase of the PET film on the winding roller 5, the gravity on the feeding shaft 83 is increased, the tension spring 85 is stretched, the feeding motor 84 drives the feeding shaft 83 to slide downwards on the arc rail 131 until the feeding shaft 83 drops to the lowest point of the arc rail 131, the unreeled PET film is contacted with the cutting knife 14, the cutting knife 14 cuts off the PET film, the reset lever 75 is manually extruded, the reset spring 74 is compressed, the reset lever 75 drives the plurality of groups of self-locking blocks 71 to move towards the center of the feeding shaft 83 through the self-locking rod 73, the self-locking spring 72 is compressed, the fixation of the winding roller is disconnected, a conveying belt is arranged below the feeding shaft 83, and the conveying belt conveys the winding roller after the PET film is wound off.

After the winding roller 5 after winding the PET film leaves the feeding shaft 83, the feeding mechanism resumes the initial position under the action of the tension spring 85, and the above steps are repeated to continue winding the PET film.

The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the present invention without inventive labor, as those skilled in the art will recognize from the above-described concepts.

Claims (8)

1. The utility model provides a PET film rolling is with preventing rolling machine that breaks, includes two sets of adjustment mechanism, feed mechanism, its characterized in that: the automatic feeding device also comprises a supporting mechanism and a self-locking mechanism, the supporting mechanism comprises a chassis (11) and a supporting frame (13), two groups of supporting plates (12) are arranged on the chassis (11), the supporting frame (13) is fixedly arranged at the end part of the first group of supporting plates (12), the second group of supporting plates (12) are slidably arranged on the chassis (11), two groups of conveying mechanisms are rotatably arranged on the supporting plates (12), the two groups of conveying mechanisms are arranged between the two groups of conveying mechanisms, the two groups of conveying mechanisms are rotatably arranged on the supporting plates (12), a height difference is arranged between regulating rollers (21) of the two groups of regulating mechanisms, a balancing slide rod (3) is symmetrically rotatably arranged on the supporting plates (12), the two groups of regulating mechanisms are slidably arranged on regulating grooves (121) of the supporting plates (12), the end parts of the two groups of regulating rollers (21) are slidably arranged on balancing grooves (31) of the balancing slide rod (3), a transmission mechanism is arranged on the first group of supporting plates (12), the transmission mechanism is connected with the two groups of conveying mechanisms, the two groups of regulating mechanisms are opposite in rotation directions, the two groups of conveying mechanisms are identical in the rotation directions, the feeding mechanism is slidably arranged on a motor (13), the feeding mechanism (84) is arranged on a motor (84), the feeding shaft (84) is arranged on the supporting frame (84), camshaft (81) fixed mounting is on the output shaft of material loading motor (84), and material loading axle (83) slidable mounting is on camshaft (81), and self-locking mechanism sets up at material loading axle (83) tip, self-locking mechanism includes multiunit self-locking piece (71), self-locking spring (72), and self-locking piece (71) slidable mounting is on self-locking groove (831) at material loading axle (83) tip, and a set of self-locking piece (71) corresponds a set of self-locking spring (72), and self-locking spring (72) set up between self-locking groove (831) and self-locking piece (71).

2. The breakage-proof rolling machine for rolling PET film according to claim 1, wherein: the supporting mechanism further comprises a shifting gear (16) and a rack (18), a baffle (17) is fixedly arranged at the tail of the chassis (11), the baffle (17) is arranged between the two groups of supporting plates (12), the shifting gear (16) is rotatably arranged on the baffle (17), the rack (18) is fixedly arranged on the second group of supporting plates (12), the baffle (17) is meshed with the rack (18), and a cutting knife (14) is fixedly arranged at the end part of the chassis (11).

3. The breakage-proof rolling machine for rolling PET film according to claim 1, wherein: the conveying mechanism comprises a main conveying roller (41) and a secondary conveying roller (42), wherein two ends of the main conveying roller (41) are rotatably arranged on a supporting plate (12), a main conveying gear (411) is fixed at the end part of the main conveying roller (41), two ends of the secondary conveying roller (42) are rotatably arranged on the supporting plate (12), a secondary conveying gear (421) is fixedly arranged at the end part of the secondary conveying roller (42), the main conveying gear (411) and the secondary conveying gear (421) are arranged inside the first group of supporting plates (12), and the main conveying gear (411) is meshed with the secondary conveying gear (421).

4. The breakage-proof rolling machine for rolling PET film according to claim 1, wherein: the adjusting mechanism comprises two groups of adjusting pins (22), each group of supporting plates (12) is provided with two groups of adjusting grooves (121), the adjusting pins (22) are respectively and slidably arranged on the corresponding adjusting grooves (121) on the two groups of supporting plates (12), two ends of each adjusting roller (21) are rotatably arranged on the corresponding adjusting pins (22) on the two groups of supporting plates (12), and an adjusting spring (23) is arranged between each adjusting pin (22) and each supporting plate (12).

5. The breakage-proof rolling machine for rolling PET film according to claim 1, wherein: the sensor (32) is arranged on the balance slide bar (3), the signal receiver is arranged on the feeding motor (84), and when the slope of the balance slide bar (3) is 0, the signal receiver controls the feeding motor (84) to be closed.

6. The breakage-proof rolling machine for rolling PET film according to claim 1, wherein: the feeding mechanism further comprises a limiting disc (82), the limiting disc (82) is rotatably mounted on the cam shaft (81), a limiting rod (821) is arranged on the limiting disc (82), the feeding shaft (83) is slidably mounted on the limiting rod (821), a curve groove (811) is formed in the cam shaft (81), a sliding column (832) is arranged in the cam shaft (81), and the sliding column (832) is slidably mounted on the curve groove (811).

7. The breakage-proof rolling machine for rolling PET film according to claim 6, wherein: the supporting mechanism further comprises a limiting pin (15), a fixing pin (133) is arranged on the supporting frame (13), the limiting pin (15) is rotatably arranged on the fixing pin (133), a limiting groove (822) is formed in the limiting disc (82), and the limiting pin (15) is in a horizontal state when not subjected to external force and is meshed with the limiting groove (822).

8. The breakage-proof rolling machine for rolling PET film according to claim 1, wherein: the self-locking mechanism further comprises a self-locking rod (73) and a reset rod (75), wherein the reset rod (75) is slidably arranged at the end part of the feeding shaft (83), the reset rod (75) is coaxial with the feeding shaft (83), a group of self-locking blocks (71) correspond to a group of self-locking rods (73), the first ends of the self-locking rods (73) are rotatably arranged at the bottoms of the self-locking blocks (71), the second ends of the self-locking rods (73) are rotatably arranged at the bottoms of the reset rod (75), and a reset spring (74) is arranged between the end part of the reset rod (75) and the feeding shaft (83).