CN111674994B

CN111674994B - Automatic winding device that carries of reel that uses on system bag machine

Info

Publication number: CN111674994B
Application number: CN202010535057.7A
Authority: CN
Inventors: 康新庭
Original assignee: Jiangxi Dexinda Intelligent Machinery Co ltd
Current assignee: Jiangxi Dexinda Intelligent Machinery Co ltd
Priority date: 2020-06-12
Filing date: 2020-06-12
Publication date: 2021-12-10
Anticipated expiration: 2040-06-12
Also published as: CN111674994A

Abstract

The invention relates to the field of bag making machines, in particular to an automatic winding and conveying device for a winding drum used on a bag making machine, which comprises a winding drum and two bases symmetrically fixed, limiting blocks are sleeved at two ends of the winding drum, limiting grooves penetrating the limiting blocks are arranged on the limiting blocks, balancing weights are fixed on the two limiting blocks, a material distributing mechanism is fixed between the two bases, the material distributing mechanism comprises a plurality of material guide plates fixed on two bases, a plurality of limiting plates are fixed above the material guide plates, the lower end surface of the limiting plate and the upper end surface of the material guide plate form a material guide channel for the rollers to slide off, a plurality of cylinders I are fixed below the material guide plate, the cylinder I is fixedly connected with a bottom plate below the material guide plate through a piston rod, a fixing groove is formed in one side, away from the cylinder I, of the upper end face of the bottom plate, and a plurality of supporting mechanisms for preventing the winding drum from rolling are fixed on the bottom plate at the position of the fixing groove. The winding drum can be separated into single winding drums and then conveyed to a designated position through the device.

Description

Automatic winding device that carries of reel that uses on system bag machine

[ technical field ] A method for producing a semiconductor device

The invention relates to the field of bag making machines, in particular to an automatic winding and conveying device for a winding drum used on a bag making machine.

[ background of the invention ]

The bag making machine is a machine for making various plastic packaging bags or packaging bags made of other materials, the processing range of the bag making machine is various plastic packaging bags or packaging bags made of other materials with different sizes, thicknesses and specifications, and the plastic packaging bags are generally used as main products. A plastic bag making machine is mainly composed of: the device comprises a material storage device, a stepping device, a frequency conversion device, a bag arranging device, a heat-sealing cutter and a control device. The main characteristic is that storage device stores the raw materials of corresponding quantity, and step device drives the raw materials, and frequency conversion device drives the heat-seal cutter, and whole bag device is whole bag after producing fixed bag number, and the heat-seal cutter seals the cutting through its temperature of temperature controller control to the raw materials, and controlling means wholly coordinates each side action. When the existing high-speed bag making machine is used for winding, a specially-assigned person is usually required to watch the work of changing a winding drum and the like, the automation degree is low, the speed of changing the winding drum after the winding device finishes winding is low, and the improvement of the working efficiency is not facilitated.

The invention is provided for overcoming the defects of the prior art.

[ summary of the invention ]

The invention aims to overcome the defects of the prior art and provides an automatic roll conveying and winding device for a bag making machine, which can automatically convey rolls and wind produced plastic bags onto the rolls.

The invention can be realized by the following technical scheme:

the invention discloses an automatic reel conveying and winding device used on a bag making machine, which comprises a reel and two symmetrically fixed bases, wherein two ends of the reel are sleeved with limit blocks, the limit blocks are provided with limit grooves penetrating through the limit blocks, the two limit blocks are both fixed with balancing weights, a material distribution mechanism is fixed between the two bases and comprises a plurality of material guide plates fixed on the two bases, a plurality of limit plates are fixed above the material guide plates, the lower end surfaces of the limit plates and the upper end surfaces of the material guide plates form material guide channels for the reel to slide off, a plurality of cylinders I are fixed below the material guide plates, the cylinders I are fixedly connected with a bottom plate below the material guide plates through piston rods, one side of the upper end surface of the bottom plate, far away from the cylinders I, is provided with fixed grooves, and a plurality of supporting mechanisms for preventing the reel from rolling are fixed on the bottom plate at the positions of the fixed grooves, the supporting mechanism comprises a supporting sleeve fixed below a bottom plate, the bottom plate is further provided with a supporting groove connected with the inside of the supporting sleeve, the supporting groove is connected with a fixed groove through a supporting chute, a supporting rod is fixed inside the supporting groove, one end of the supporting rod penetrates through the supporting sleeve and is in sliding connection with the supporting sleeve, the other end of the supporting rod is fixed with a supporting head in sliding connection with the supporting chute, the supporting rod at the bottom of the supporting head is further fixed with a supporting block, the supporting block is arranged in the supporting groove, a supporting spring in a compressed state is further fixed between the supporting block and the supporting sleeve, a cylinder II is further fixed on a base on the left side, a piston rod II is fixed at the output end of the cylinder II, a connecting sleeve rotationally connected with the piston rod II is fixed at the tail end of the piston rod II, and a limiting head I assembled with the limiting groove on the limiting block in a matched mode is further fixed at the tail end of the connecting sleeve, be fixed with cylinder III on the base on right side, the output of cylinder III is fixed with piston rod III, the terminal sliding sleeve of being connected with the rotation of piston rod III that is fixed with of piston rod III, the sliding sleeve end be fixed with spacing first II of spacing groove cooperation equipment on the aforementioned stopper, still be fixed with the internal and external gear with sliding sleeve sliding connection on the sliding sleeve, the internal and external gear both ends are all connected with the base through the fixed block, still be fixed with the coiling motor on the base of internal and external gear below, the coiling motor output is fixed with the action wheel, the action wheel passes through hold-in range and aforementioned internal and external gear round-trip, still is fixed with slide bar and lead screw in the middle of two bases, the lead screw is rotated by positioning motor drive, it has two sliders, two still to be fixed with symmetrically on the lead screw the slider up end all is fixed with the locating piece. A large number of winding drums are placed on a material guide plate, the winding drums slide down to a bottom plate through a material guide channel, only one winding drum can transversely pass through the end of the material guide channel, the lowest winding drum falls to a fixed groove position on the bottom plate after passing through the material guide channel, due to the action of a supporting mechanism, the winding drums are fixed in the fixed grooves, an air cylinder I is started, a piston rod on the air cylinder I extends, the bottom plate moves, the winding drums on the bottom plate move to a position between a limiting head I and a limiting head II, limiting blocks are sleeved at two ends of the winding drums, balancing weights are fixed on one sides of the two limiting blocks, when the winding drums move to a position between the limiting head I and the limiting head II, the limiting grooves on the limiting blocks are just opposite to the limiting head I and the limiting head II and just can be assembled with the limiting head I and the limiting head II, the air cylinder II is started, a piston rod II on the air cylinder II extends, a connecting sleeve fixed at the end of the piston rod II moves, the limiting head I on the connecting sleeve moves to the corresponding limiting block and is assembled with the limiting groove, starting a cylinder III, extending a piston rod III on the cylinder III, sliding a sliding sleeve fixed on the piston rod III, assembling a limiting head II fixed at the tail end of the sliding sleeve with a limiting groove on a corresponding limiting block after moving, assembling the limiting head I and the limiting head II with the limiting groove, starting the cylinder I, shortening a piston rod on the cylinder I, shortening the piston rod on the cylinder I because a winding drum is fixed between the limiting head I and the limiting head II, when the piston rod on the cylinder I is shortened, the winding drum extrudes a supporting head to descend after contacting with the supporting head, the supporting block extrudes a supporting spring, the supporting spring returns to a natural state after separating from the supporting head, the supporting spring pushes the supporting block to ascend, the supporting head extends into a fixed groove again, after the fixed groove returns to an initial position, the next winding drum falls onto the fixed groove, fixing an initial plastic bag on the winding drum between the limiting head I and the limiting head II, starting a winding motor, and because a driving wheel is meshed with external teeth of an internal gear and an external gear through a synchronous belt, and the internal teeth of the internal and external gears are meshed with the fixed teeth on the peripheral side of the sliding sleeve, the driving wheel drives the internal and external gears to rotate through a synchronous belt, the internal and external gears drive the sliding sleeve to rotate, a fixed limiting head II fixed on the sliding sleeve rotates along with the sliding sleeve, a limiting head II drives a winding drum to rotate, the plastic bag is uniformly wound on the winding drum, after the winding drum rotates for a period of time, when the plastic bag on the winding drum reaches a certain amount, a winding motor stops to separate the plastic bag on the winding drum from the produced plastic bag, an air cylinder II and an air cylinder III start again, a piston rod II on the air cylinder II shortens, a piston rod III on the air cylinder III shortens, the limiting head I and the limiting head II are separated from two limiting blocks on the winding drum, the winding drum falls onto a sliding plate below the sliding plate and rolls down into a collecting device below the sliding plate through the sliding plate, the circular operation is realized, the winding drum can be separated into single winding drum and then conveyed to the position of the winding motor, and the winding drum is driven to rotate through the winding motor, the even winding of plastic bag is on the reel, through cup jointing the stopper at the reel both ends, and fixed balancing weight on the stopper, the reel removes when spacing first I and spacing first between II, because the reel is cylindric, spacing groove and spacing first I and spacing first II natural alignment can be realized on the stopper through the balancing weight, thereby realize spacing first between I and the spacing first II with the stopper equipment, and it rotates to drive the reel through spacing first II, with the plastic bag coiling on the reel, it rotates to drive the lead screw through the positioning motor, rotate through the lead screw and drive two slider relative movements, thereby adjust the distance between two sliders, fixed locating piece removes along with the slider on the slider, produced plastic bag passes the back between two locating pieces and coils on the reel, can realize the location to the plastic bag, thereby guarantee the quality that the plastic bag was convoluteed.

Preferably, the top of the supporting head is hemispherical.

Preferably, a sliding plate is obliquely fixed between the two bases below the screw rod.

Preferably, fixed teeth are uniformly fixed on the outer peripheral side of the sliding sleeve, and the sliding sleeve is meshed with the inner gear and the outer gear through the fixed teeth.

Preferably, the material distribution mechanism further comprises support plates fixed on bases on two sides of the winding drum. The reel is fixed between two backup pads, can effectively fix a position the reel to when guaranteeing that the reel removes, the reel reachs between spacing head I and the spacing head II.

Preferably, the two bases are respectively fixed with a positioning plate. The locating plate sets up between spacing first I and spacing first II, and when spacing first I and spacing first II separated with the stopper, through two locating plate effects, can effectively realize spacing first I and spacing first II and stopper separation.

Compared with the prior art, the invention has the following advantages:

1. the device can divide the winding drum into single winding drums and then convey the winding drums to the winding motor, the winding drums are driven by the winding motors to rotate, and plastic bags are uniformly wound on the winding drums.

2. Spacing groove and spacing first I and spacing first II natural alignment can be realized on the stopper through the balancing weight to realize the equipment of spacing between first I and the spacing first II with the stopper, and drive the reel through spacing first II and rotate, convolute the plastic bag on the reel.

3. The positioning motor drives the screw rod to rotate, the screw rod rotates to drive the two sliding blocks to move relatively, so that the distance between the two sliding blocks is adjusted, the positioning blocks fixed on the sliding blocks move along with the sliding blocks, and the produced plastic bag passes through the two positioning blocks and then is wound on the winding drum, so that the positioning of the plastic bag can be realized, and the winding quality of the plastic bag is ensured.

[ description of the drawings ]

The following detailed description of embodiments of the invention is provided in conjunction with the appended drawings, in which:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is another angular configuration of the present invention;

FIG. 3 is a top view of the present invention;

FIG. 4 is a cross-sectional view taken at A-A of FIG. 3;

FIG. 5 is a cross-sectional view taken at B-B of FIG. 3;

FIG. 6 is a cross-sectional view taken at C-C of FIG. 3;

FIG. 7 is an enlarged view of FIG. 5 at D;

FIG. 8 is an enlarged view at E of FIG. 6;

in the figure: 1. a base; 2. a reel; 201. a limiting block; 202. a balancing weight; 3. a material distributing mechanism; 4. a material guide plate; 5. a limiting plate; 6. a material guide channel; 7. a support plate; 8. a cylinder I; 9. a base plate; 901. fixing grooves; 10. a support mechanism; 101. a support sleeve; 102. a support groove; 103. a support bar; 104. a support block; 105. a support head; 106. a support spring; 107. a support chute; 11. a cylinder II; 12. a piston rod II; 13. connecting sleeves; 14. a limiting head I; 15. positioning a plate; 16. a cylinder III; 17. a piston rod III; 18. a sliding sleeve; 19. inner and outer gears; 20. a fixed block; 21. a synchronous belt; 22. a driving wheel; 23. a winding motor; 24. a limiting head II; 25. fixing teeth; 26. a slide bar; 27. a screw rod; 28. positioning a motor; 29. a slider; 30. positioning blocks; 31. a slide plate;

[ detailed description ] embodiments

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings:

as shown in fig. 1 to 8, the invention discloses an automatic reel conveying and winding device for a bag making machine, comprising a reel 2 and two symmetrically fixed bases 1, wherein two ends of the reel 2 are sleeved with stoppers 201, the stoppers 201 are provided with limiting grooves penetrating through the stoppers 201, balancing weights 202 are fixed on the two stoppers 201, a material distribution mechanism 3 is fixed between the two bases 1, the material distribution mechanism 3 comprises a plurality of material guide plates 4 fixed on the two bases 1, a plurality of limiting plates 5 are fixed above the material guide plates 4, a material guide channel 6 for the reel 2 to slide down is formed by the lower end surfaces of the limiting plates 5 and the upper end surfaces of the material guide plates 4, a plurality of cylinders i 8 are fixed below the material guide plates 4, the cylinders i 8 are fixedly connected with a bottom plate 9 below the material guide plates 4 through piston rods, a fixing groove 901 is arranged on one side of the upper end surface of the bottom plate 9 far away from the cylinders i 8, a plurality of supporting mechanisms 10 for preventing the reel 2 from rolling are fixed on the bottom plate 9 at the position of the fixing groove 901, the supporting mechanism 10 comprises a supporting sleeve 101 fixed below the bottom plate 9, a supporting groove 102 connected with the inside of the supporting sleeve 101 is further arranged on the bottom plate 9, the supporting groove 102 is connected with the fixing groove 901 through a supporting chute 107, a supporting rod 103 is fixed inside the supporting groove 102, one end of the supporting rod 103 penetrates through the supporting sleeve 101 and is connected with the supporting sleeve 101 in a sliding manner, a supporting head 105 connected with the supporting chute 107 in a sliding manner is fixed at the other end of the supporting rod 103, a supporting block 104 is further fixed on the supporting rod 103 at the bottom of the supporting head 105, the supporting block 104 is arranged in the supporting groove 102, a supporting spring 106 in a compressed state is further fixed between the supporting block 104 and the supporting sleeve 101, an air cylinder II 11 is further fixed on the left base 1, a piston rod II 12 is fixed at the output end of the air cylinder II 11, a connecting sleeve 13 rotationally connected with the piston rod II 12 is fixed at the tail end of the piston rod II 12, and a limiting head I14 assembled with a limiting groove on the limiting block 201 is further fixed at the tail end of the connecting sleeve 13, the right base 1 is fixed with an air cylinder III 16, the output end of the air cylinder III 16 is fixed with a piston rod III 17, the tail end of the piston rod III 17 is fixed with a sliding sleeve 18 rotatably connected with the piston rod III 17, the tail end of the sliding sleeve 18 is fixed with a limiting head II 24 matched and assembled with a limiting groove on the limiting block 201, the sliding sleeve 18 is further fixed with an inner gear 19 slidably connected with the sliding sleeve 18, two ends of the inner gear 19 are connected with the base 1 through fixing blocks 20, a winding motor 23 is further fixed on the base 1 below the inner gear 19, the output end of the winding motor 23 is fixed with a driving wheel 22, the driving wheel 22 is in winding connection with the inner gear 19 through a synchronous belt 21, a sliding rod 26 and a screw rod 27 are further fixed between the two bases 1, the screw rod 27 is driven to rotate by a positioning motor 28, two sliding blocks 29 are further symmetrically fixed on the screw rod 27, and positioning blocks 30 are fixed on the upper end faces of the two sliding blocks 29. A large number of winding drums 2 are placed on a material guide plate 4, the winding drums 2 slide down to a bottom plate 9 through a material guide channel 6, only one winding drum 2 can transversely pass through the end of the material guide channel 6, the winding drum 2 at the lowest position falls to the position of a fixing groove 901 on the bottom plate 9 after passing through the material guide channel 6, the winding drum 2 is fixed in the fixing groove 901 under the action of a supporting mechanism 10, an air cylinder I8 is started, a piston rod on the air cylinder I8 extends, the bottom plate 9 moves, the winding drum 2 on the bottom plate 9 moves to a position between a limiting head I14 and a limiting head II 24, limiting blocks 201 are sleeved at two ends of the winding drum 2, balancing weights 202 are fixed on one sides of the two limiting blocks 201, when the winding drum 2 moves to a position between the limiting head I14 and the limiting head II 24, the limiting grooves on the limiting blocks 201 are just right opposite to the limiting head I14 and the limiting head II 24 and can be just assembled with the limiting head I14 and the limiting head II 24, starting the air cylinder II 11, extending a piston rod II 12 on the air cylinder II 11, moving a connecting sleeve 13 fixed at the tail end of the piston rod II 12, moving a limiting head I14 on the connecting sleeve 13 to a corresponding limiting block 201 and assembling the limiting head with a limiting groove, starting the air cylinder III 16, extending a piston rod III 17 on the air cylinder III 16, sliding a sliding sleeve 18 fixed on the piston rod III 17, assembling a limiting head II 24 fixed at the tail end of the sliding sleeve 18 with a limiting groove on the corresponding limiting block 201 after moving, starting the air cylinder I8 after the limiting head I14 and the limiting head II 24 are both assembled with the limiting groove, shortening the piston rod on the air cylinder I8, as the winding drum 2 is fixed between the limiting head I14 and the limiting head II 24, when the piston rod on the air cylinder I8 is shortened, the winding drum 2 is contacted with the supporting head 105, the supporting head 105 is extruded by the winding drum 2 and descends, the supporting block 104 is extruded by the supporting spring 106, and after the winding drum 2 is separated from the supporting head 105, the supporting spring 106 returns to a natural state, the supporting block 104 is pushed by the supporting spring 106 to rise, the supporting head 105 extends into the fixing groove 901 again, after the fixing groove 901 returns to the initial position, the next winding drum 2 falls onto the fixing groove 901, the initial plastic bag is fixed on the winding drum 2 between the limiting head I14 and the limiting head II 24, the winding motor 23 is started, because the driving wheel 22 is meshed with the external teeth of the internal and external gears 19 through the synchronous belt 21, and the internal teeth of the internal and external gears 19 are meshed with the fixed teeth 25 on the outer peripheral side of the sliding sleeve 18, the driving wheel 22 drives the internal and external gears 19 to rotate through the synchronous belt 21, the internal and external gears 19 drive the sliding sleeve 18 to rotate, the limiting head II 24 fixed on the sliding sleeve 18 rotates along with the sliding sleeve 18, the limiting head II 24 drives the winding drum 2 to rotate, the plastic bag is uniformly wound on the winding drum 2, after the winding drum 2 rotates for a period of time, when the plastic bag on the winding drum 2 reaches a certain amount, the winding motor 23 stops, the plastic bag on the winding drum 2 is separated from the produced plastic bag, the air cylinder II 11 and the air cylinder III 16 are started again, the piston rod II 12 on the air cylinder II 11 is shortened, the piston rod III 17 on the air cylinder III 16 is shortened, the limiting head I14 and the limiting head II 24 are separated from the two limiting blocks 201 on the winding drum 2, the winding drum 2 falls onto the sliding plate 31 below the air cylinder II, the winding drum 2 rolls onto the collecting device below the sliding plate 31 through the sliding plate 31, the circulation operation is performed, the winding drum 2 can be separated into a single unit through the device and then conveyed to the position of the winding motor 23, the winding drum 2 is driven to rotate through the winding motor 23, the plastic bag is uniformly wound on the winding drum 2, the limiting blocks 201 are sleeved at the two ends of the winding drum 2, the balancing weight 202 is fixed on the limiting blocks 201, when the winding drum 2 moves to the position between the limiting head I14 and the limiting head II 24, because the winding drum 2 is cylindrical, the natural alignment of the limiting groove on the limiting block 201 with the limiting head I14 and the limiting head II 24 can be realized through the balancing weight 202, thereby realize the equipment with stopper 201 between spacing head I14 and the spacing head II 24, and drive reel 2 through spacing head II 24 and rotate, coil the plastic bag on reel 2, drive lead screw 27 through positioning motor 28 and rotate, rotate through lead screw 27 and drive two slider 29 relative movement, thereby adjust the distance between two slider 29, fixed locating piece 30 moves along with slider 29 on the slider 29, the plastic bag that produces passes back coiling on reel 2 between two locating piece 30, can realize the location to the plastic bag, thereby guarantee the quality that the plastic bag was convoluteed.

Wherein, the top of the supporting head 105 is hemispherical.

Wherein, a sliding plate 31 is also obliquely fixed between the two bases 1 below the screw rod 27.

Wherein, the periphery of the sliding bush 18 is evenly fixed with a fixed tooth 25, and the sliding bush 18 is meshed with the inner gear 19 and the outer gear 19 through the fixed tooth 25.

Wherein, both bases 1 are fixed with a positioning plate 15.

The above description is only a preferred embodiment of the present invention, and it should be noted that a person skilled in the art can make various changes, modifications, substitutions and alterations to the embodiments without departing from the technical principles of the present invention, and such changes, modifications, substitutions and alterations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an automatic coiling mechanism that carries of reel that uses on system bag machine which characterized in that: the winding drum comprises a winding drum and two bases which are symmetrically fixed, wherein the two ends of the winding drum are sleeved with limiting blocks, the limiting blocks are provided with limiting grooves which penetrate through the limiting blocks, balancing weights are fixed on the two limiting blocks, a material distributing mechanism is fixed between the two bases and comprises a plurality of guide plates which are fixed on the two bases, a plurality of limiting plates are fixed above the guide plates, the lower end surfaces of the limiting plates and the upper end surfaces of the guide plates form guide channels for the winding drum to slide down, a plurality of cylinders I are fixed below the guide plates and are fixedly connected with a bottom plate below the guide plates through piston rods, one side, far away from the cylinders I, of the upper end surface of the bottom plate is provided with a fixing groove, a plurality of supporting mechanisms for preventing the winding drum from rolling are fixed on the bottom plate at the positions of the fixing grooves, each supporting mechanism comprises a supporting sleeve fixed below the bottom plate, and a supporting groove which is connected with the inside of the supporting sleeve is further arranged on the bottom plate, the supporting groove is connected with the fixed groove through a supporting chute, a supporting rod is fixed in the supporting groove, one end of the supporting rod penetrates through the supporting sleeve and is in sliding connection with the supporting sleeve, a supporting head in sliding connection with the supporting chute is fixed at the other end of the supporting rod, a supporting block is further fixed on the supporting rod at the bottom of the supporting head and is arranged in the supporting groove, a supporting spring in a compression state is further fixed between the supporting block and the supporting sleeve, a cylinder II is further fixed on a base on the left side, a piston rod II is fixed at the output end of the cylinder II, a connecting sleeve in rotating connection with the piston rod II is fixed at the tail end of the piston rod II, a limiting head I assembled with the limiting groove on the limiting block in a matching mode is further fixed at the tail end of the connecting sleeve, a cylinder III is fixed on the base on the right side, a piston rod III is fixed at the output end of the cylinder III, and a sliding sleeve in rotating connection with the piston rod III is fixed at the tail end of the piston rod, the terminal spacing head II that is fixed with the spacing groove cooperation equipment on the aforementioned stopper of sliding sleeve, still be fixed with the internal and external gear with sliding sleeve sliding connection on the sliding sleeve, the internal and external gear both ends all are connected with the base through the fixed block, still be fixed with the coiling motor on the base of internal and external gear below, the coiling motor output is fixed with the action wheel, the action wheel passes through hold-in range and aforementioned internal and external gear round-trip, still is fixed with slide bar and lead screw in the middle of two bases, the lead screw is rotated by positioning motor drive, still the symmetry is fixed with two sliders on the lead screw, two the slider up end all is fixed with the locating piece.

2. The automatic roll-feeding and winding device for use in a bag machine as claimed in claim 1, wherein: the top of the supporting head is hemispherical.

3. The automatic roll-feeding and winding device for use in a bag machine as claimed in claim 1, wherein: and a sliding plate is obliquely fixed between the two bases below the screw rod.

4. The automatic roll-feeding and winding device for use in a bag machine as claimed in claim 1, wherein: fixed teeth are uniformly fixed on the peripheral side of the sliding sleeve, and the sliding sleeve is meshed with the inner gear and the outer gear through the fixed teeth.

5. The automatic roll-feeding and winding device for use in a bag machine as claimed in claim 1, wherein: and positioning plates are fixed on the two bases.