CN117325508A - Process and device for making packaging bag - Google Patents

Abstract

The invention belongs to the field of packaging bag production, and discloses a packaging bag making process and device, wherein the packaging bag making process comprises a supporting table, one end of the supporting table is fixedly provided with a mounting plate, a pair of symmetrically placed supporting plates are fixedly arranged on the mounting plate, a pair of rotating rollers which are symmetrically placed up and down are arranged between the supporting plates, two ends of each rotating roller are detachably connected with the supporting plates, a pair of spreading rollers which are symmetrically placed up and down are arranged between the two rotating rollers, the spreading rollers are coaxially placed with the rotating rollers, and two ends of each spreading roller are fixedly connected with the supporting plates; according to the invention, through the cooperation of the supporting plate, the rotating roller, the pressing plate, the sliding rod, the first spring, the longitudinal heat sealing mechanism, the first connecting piece and the transverse heat sealing mechanism, the cloth edges on two sides of a bag are automatically aligned, and meanwhile, the longitudinal heat sealing mechanisms on two sides can be adjusted in interval according to the width of the cloth roll, so that the position relationship between the longitudinal heat sealing mechanism and the cloth edges is not required to be manually calibrated.

Description

Process and device for making packaging bag

Technical Field

The invention belongs to the field of packaging bag production, and particularly relates to a packaging bag making process and device.

Background

The packaging bag refers to a bag for loading articles, and is mostly a product formed by printing, compounding and bag making of plastic films; the existing bag making process of the packaging bag comprises the steps of bonding two layers of bag making cloth together, then heat-sealing the longitudinal edges of the two layers of cloth through a heat sealing machine which is arranged longitudinally, and transversely heat-sealing the cloth according to the length of a required processing packaging bag by matching with a heat sealing machine which is arranged transversely, continuously working in the process to obtain a plurality of adjacent packaging bags together, and cutting the packaging bags to obtain a plurality of independent packaging bags through shearing, or opening a perforation line and rolling the cloth into a roll to obtain a packaging paper roll;

however, the bag making process has the problem that the edges of the two bag making cloths are required to be aligned manually by a worker and the edges of the cloths are required to be aligned with a heat sealing machine.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide a packaging bag making process and a packaging bag making device, which solve the problems that the edges of two bag making cloths are required to be aligned manually and the edges of the cloths are required to be aligned with a heat sealing machine in the prior art.

The aim of the invention can be achieved by the following technical scheme:

the packaging bag making process and device comprises a supporting table, wherein one end of the supporting table is fixedly provided with a mounting plate, a pair of symmetrically placed supporting plates are fixedly arranged on the mounting plate, a pair of vertically symmetrically placed rotating rollers are arranged between the supporting plates, two ends of each rotating roller are detachably connected with the supporting plates, a pair of vertically symmetrically placed spreading rollers are arranged between the two rotating rollers, and the spreading rollers are coaxially placed with the rotating rollers, and two ends of each spreading roller are fixedly connected with the supporting plates.

A pair of vertically placed pressing plates are arranged between the supporting plates, a pair of sliding rods which are placed coaxially with the rotating rollers are fixed between the supporting plates, the sliding rods penetrate through the pressing plates and are in sliding connection with the pressing plates, first springs which are placed coaxially are arranged at two ends of the sliding rods, one ends of the first springs are fixed with the supporting plates, and the other ends of the first springs are fixed with the pressing plates.

And a pair of symmetrically placed longitudinal heat sealing mechanisms are arranged right above the supporting table, the longitudinal heat sealing mechanisms are in a horizontal placement state perpendicular to the axis direction of the rotating roller, the longitudinal heat sealing mechanisms are in one-to-one correspondence with the pressing plates, first connecting pieces are fixed between the longitudinal heat sealing mechanisms and the corresponding pressing plates, a transverse heat sealing mechanism is arranged on the supporting table, the transverse heat sealing mechanism and the rotating roller are in a coaxial placement state, and the transverse heat sealing mechanism is positioned at one end of the longitudinal heat sealing mechanism far away from the supporting plate.

The vertical heat sealing mechanism comprises a movable plate, one end of a first connecting piece is fixed with a pressing plate, the other end of the first connecting piece is fixed with the movable plate, a pair of vertical symmetrical first pressing strips are arranged on one side surface of the movable plate, which is close to each other, of the movable plate, the first pressing strips are in a vertical placement state with a rotating roller, a pair of vertical first sliding grooves are formed in the movable plate, first sliding blocks in sliding clamping connection are arranged in the first sliding grooves, the first sliding blocks are in one-to-one correspondence with the first pressing strips, any one of the first sliding blocks is fixed with the first pressing strips above, the other first sliding block is fixed with the first pressing strips below, a pair of vertical heat sealing strips which are vertically symmetrical are arranged between the first pressing strips, the vertical heat sealing strips are all placed in a coaxial direction with the first pressing strips, a plurality of uniformly distributed first telescopic rods which are in a vertical placement state are fixed between the first pressing strips and the corresponding vertical heat sealing strips, second springs which are placed are sleeved on the first telescopic rods, and one ends of the second springs are all fixed with the first pressing strips, and the second springs are all fixed with the first pressing strips.

A side surface of the movable plate, which is far away from the first pressing strip, is provided with a first rotating shaft which is connected in a rotating way, the first rotating shaft is coaxially placed with the rotating roller, a first gear which is coaxially placed is fixedly sleeved on the first rotating shaft, a pair of straight racks which are symmetrically placed in the same axial direction are connected to the first gear in a meshed way, the straight racks are coaxially placed with the first sliding grooves in a one-to-one correspondence way and are in sliding clamping connection with the first sliding grooves, the straight racks are fixedly connected with the corresponding straight racks in the first sliding grooves, a second gear which is coaxially placed is fixedly sleeved on one end of the movable plate, a pair of symmetrical placed second connecting pieces are fixedly arranged on the supporting table, a second rotating shaft which is connected in a rotating way is arranged between the second connecting pieces, the second rotating shaft and the rotating roller are coaxially placed, a third gear which is coaxially placed is sleeved on two ends of the second rotating shaft, the second rotating shaft is fixedly connected with the first rotating shaft in a sliding way, a first annular synchronous toothed belt is sleeved between the second gear and the third gear, the second gear on the same side surface of the first sliding groove is in a sliding clamping way, the first rotating shaft is fixedly connected with the first rotating shaft, a telescopic frame is fixedly sleeved on the first rotating shaft, the first rotating shaft is fixedly connected with the first rotating shaft, and the first rotating shaft is fixedly connected with the first rotating frame in a telescopic frame, and the telescopic frame is fixedly connected with the first rotating frame, and the first rotating frame.

The horizontal heat sealing mechanism comprises a pair of second pressing plates which are vertically symmetrical and horizontally placed, the second pressing plates are in a vertical placement state with the first pressing plates, a pair of horizontal heat sealing strips which are vertically symmetrical and placed are arranged between the second pressing plates, the horizontal heat sealing strips are in one-to-one correspondence with the second pressing plates, and a plurality of second telescopic rods which are uniformly distributed and in a vertical placement state are fixed between the horizontal heat sealing strips and the corresponding second pressing plates.

The fixing strip is arranged coaxially with the transverse heat sealing strip, the fixing strip is fixed with the transverse heat sealing strip above, the fixing strip is positioned on one side of the transverse heat sealing strip, which is close to the longitudinal heat sealing mechanism, and a plurality of hole needles which are uniformly distributed along the axis direction of the fixing strip are arranged below the fixing strip.

The supporting bench is kept away from the backup pad and is fixed with the connecting plate of symmetrical placement, be equipped with a pair of transport roller of rotating connection between the connecting plate, transport roller all is coaxial to placing with the commentaries on classics roller, all be fixed with the third pivot that the coaxial line was placed on any transport roller, the third pivot all rotates with the connecting plate and is connected, be fixed with the mount pad on any connecting plate, be fixed with first rotation motor on the mount pad, first rotation motor output and third pivot fixed connection, be equipped with the roll-up roller of rotating connection between the connecting plate, the roll-up roller is coaxial to placing and be located the transport roller under, set up the through-hole groove of placing with the axial on the roll-up roller, the through-hole groove both ends all are fixed with the pole cover that the coaxial line was placed, be fixed with the second rotation motor on any connecting plate, second rotation motor output and roll-up roller fixed connection.

A pair of support bars which are vertically and symmetrically placed are fixed on the supporting table, the support bars are respectively fixed with two second pressing strips which are vertically and symmetrically placed, third springs which are coaxially placed are respectively sleeved on the second telescopic rods, one ends of the third springs are respectively fixed with the second pressing strips, the other ends of the third springs are respectively fixed with the transverse heat sealing strips, the third springs are always in a compressed state, the upper ends of the support bars are respectively fixed with a fixed plate, the lower ends of the fixed plates are respectively fixed with a symmetrical square shaft rod which is vertically placed, the square shaft rods are respectively positioned at one ends of the transverse heat sealing mechanisms, which are far away from the supporting plates, second sliding blocks which are in sliding connection are respectively sleeved on the square shaft rods, rectangular grooves are formed in one sides of the second sliding blocks, which are close to the supporting plates, a pair of symmetrically placed sleeves are respectively arranged under the fixed plates, the sleeves are respectively positioned at one sides of the transverse heat sealing mechanisms, which are close to the second sliding blocks, one side of the sleeve, which is close to the transverse heat sealing mechanism, is in an opening shape, the sleeve is fixed with the fixed plate through a third connecting piece, the sleeve and the first pressing strip are coaxially arranged, the central axes of the sleeve are all positioned in the symmetrical planes of the two transverse heat sealing strips, connecting shafts which are coaxially arranged are arranged in the sleeve, the connecting shafts are in sliding connection with the sleeve, one end of the connecting shaft, which is far away from the second sliding block, is fixedly provided with a first wedge block, one end of the first wedge block, which is far away from the second sliding block, is in an isosceles triangle block symmetrically arranged relative to the symmetrical planes of the two transverse heat sealing strips, the first wedge block is in a rectangular block shape, the first wedge block can completely move into the sleeve, the upper end of the connecting shaft, which is close to the second sliding block, is in an inclined wedge surface shape which is obliquely upwards arranged towards the transverse heat sealing mechanism, the upper end of the second wedge block is in an inclined plane shape, a fourth spring is fixedly arranged between the second wedge block and the sleeve, the fourth springs are all sleeved on the connecting shaft and are always in a compressed state.

When the lower end of the second sliding block is attached to the supporting table, the second wedge blocks are fixed to the side walls of the second sliding block, the groove surface of the upper end of the rectangular groove is located right below the lower end face of the second wedge blocks, and the first wedge blocks are located right between the two transverse heat sealing strips.

The third rotating shaft is fixedly sleeved with a fourth gear which is coaxially placed, one ends, close to the supporting plates, of the side walls of the two sides of the supporting table are respectively provided with a fifth gear which is rotationally connected, the fifth gears are coaxially placed with the fourth gear, a second annular synchronous toothed belt is sleeved between the fourth gear and the fifth gears, a plurality of uniformly distributed fixing clamps are respectively fixed on the second annular synchronous toothed belt, a deflector rod which is coaxially placed with the rotating roller is respectively fixed on the fixing clamps, and the deflector rod can be in wedge surface extrusion contact with the lower end of the second sliding block.

And a second telescopic cylinder which is symmetrically arranged is arranged below the fixed plate, the second telescopic cylinders are in one-to-one correspondence with the second sliding blocks, and the telescopic rods of the second telescopic cylinders can be in extrusion contact with the second sliding blocks.

The invention has the beneficial effects that:

1. according to the invention, through the cooperation of the supporting plate, the rotating roller, the pressing plate, the sliding rod, the first spring, the longitudinal heat sealing mechanism, the first connecting piece and the transverse heat sealing mechanism, the cloth edges on two sides of a bag are automatically aligned, and meanwhile, the longitudinal heat sealing mechanisms on two sides can be adjusted in interval according to the width of a cloth roll, so that the position relationship between the longitudinal heat sealing mechanism and the cloth edges is not required to be manually calibrated;

2. according to the invention, through the cooperation of the first rotating shaft, the first gear, the straight rack, the second gear, the second rotating shaft, the third gear, the first annular synchronous toothed belt, the moving frame and the longitudinal heat sealing mechanism, the synchronous movement of the longitudinal heat sealing strips in the longitudinal heat sealing mechanisms on two sides is conveniently controlled while the movement of the longitudinal heat sealing mechanisms on two sides is not influenced;

3. according to the invention, the transverse heat sealing processing of the packaging bag with the required specification length is facilitated by the cooperation of the fourth gear, the fifth gear, the second annular synchronous toothed belt, the fixing clamp, the deflector rod, the supporting bar, the fixing plate, fang Zhougan, the second sliding block, the sleeve, the first wedge block, the second wedge block, the connecting shaft, the fourth spring and the transverse heat sealing mechanism, and when the cloth passes the distance of the bag making length, the transverse heat sealing of the cloth is realized in time through the transverse heat sealing mechanism.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to those skilled in the art that other drawings can be obtained according to these drawings without inventive effort.

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

FIG. 2 is a schematic view of a portion of the structure of the present invention;

FIG. 3 is a schematic view of the structure of the support plate and the longitudinal heat sealing mechanism of the present invention;

FIG. 4 is a schematic view of a part of the structure of the longitudinal heat sealing mechanism of the present invention;

FIG. 5 is a schematic view of a portion of the structure of the second shaft of the present invention;

FIG. 6 is a schematic view of a part of the structure of the transverse heat seal mechanism of the present invention;

FIG. 7 is a schematic view of a portion of the structure of a second endless timing belt of the present invention;

fig. 8 is a schematic view of a part of the structure of the second slider of the present invention.

Detailed Description

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.

As shown in fig. 1 to 8, the packaging bag making process and device comprise a supporting table 1, wherein one end of the supporting table 1 is fixedly provided with a mounting plate, a symmetrically placed supporting plate 2 is fixedly arranged on the mounting plate, a pair of rotating rollers 3 which are symmetrically placed up and down are arranged between the supporting plates 2, two ends of the rotating rollers 3 are detachably connected with the supporting plates 2, a pair of spreading rollers which are symmetrically placed up and down are arranged between the two rotating rollers 3, the spreading rollers are coaxially placed with the rotating rollers 3, and two ends of the spreading rollers are fixedly connected with the supporting plates 2;

a pair of vertically placed pressing plates 4 are arranged between the supporting plates 2, a pair of sliding rods which are coaxially placed with the rotating rollers 3 are fixed between the supporting plates 2, the sliding rods penetrate through the pressing plates 4 and are in sliding connection with the pressing plates 4, first springs 5 which are coaxially placed are arranged at two ends of the sliding rods, one ends of the first springs 5 are fixed with the supporting plates 2, and the other ends of the first springs 5 are fixed with the pressing plates 4;

a pair of symmetrically placed longitudinal heat sealing mechanisms 6 are arranged right above the supporting table 1, the longitudinal heat sealing mechanisms 6 are in a horizontal placement state perpendicular to the axial direction of the rotary roller 3, the longitudinal heat sealing mechanisms 6 are in one-to-one correspondence with the pressing plates 4, a first connecting piece 7 is fixed between the longitudinal heat sealing mechanisms 6 and the corresponding pressing plates 4, a transverse heat sealing mechanism 8 is arranged on the supporting table 1, the transverse heat sealing mechanism 8 and the rotary roller 3 are in a coaxial placement state, and the transverse heat sealing mechanism 8 is positioned at one end of the longitudinal heat sealing mechanism 6 far away from the supporting plate 2;

the two rotating rollers 3 are respectively sleeved with a cloth roll for making bags, the cloth roll is rotationally connected with the rotating rollers 3, the cloth is positioned between the pressing plates 4 at the two sides, the free ends of the cloth roll pass through the two cloth spreading rollers and extend towards the ends of the transverse heat sealing mechanism 8, under the action of the first springs 5, the pressing plates 4 are respectively pressed against the two ends of the cloth roll by the first springs 5, meanwhile, the pressing plates 4 drive the first connecting pieces 7, and the first connecting pieces 7 drive the longitudinal heat sealing mechanism 6, so that the distance between the two longitudinal heat sealing mechanisms 6 at the two sides can be adjusted according to the width of the cloth roll, and the position relationship between the longitudinal heat sealing mechanism 6 and the edge of the cloth is not required to be manually calibrated;

and then the free ends of the cloth rolls are pulled at a constant speed, so that the cloth continuously improves the longitudinal heat sealing mechanism 6 and the transverse heat sealing mechanism 8, the longitudinal edges of the two cloths are heat sealed through the longitudinal heat sealing mechanism 6, and the cloth sections after the longitudinal heat sealing are passed through the transverse heat sealing mechanism 8, when the length of the cloth sections passing through the transverse heat sealing mechanism 8 reaches the length specification of a required bag, the transverse heat sealing mechanism 8 is opened to heat the cloth transversely, and then one end, close to the longitudinal heat sealing mechanism 6, of the transverse heat sealing line can be sheared to form a single packaging bag, or one end, close to the longitudinal heat sealing mechanism 6, of the transverse heat sealing line is arranged on the cloth, and the cloth is wound to form a packaging bag roll.

In order to facilitate the heat seal of the longitudinal edges of cloth, the longitudinal heat seal mechanism 6 comprises a moving plate 61, one end of a first connecting piece 7 is fixed with a pressing plate 4, the other end of the first connecting piece 7 is fixed with the moving plate 61, a pair of vertically symmetrical and horizontally placed first pressing strips 62 are arranged on one side surface of the moving plate 61, which is close to each other, the first pressing strips 62 are vertically placed with a rotating roller 3, a pair of vertically placed first sliding grooves are formed in the moving plate 61, first sliding blocks 63 which are in sliding clamping connection are arranged in the first sliding grooves, the first sliding blocks 63 are in one-to-one correspondence with the first pressing strips 62, any one first sliding block 63 is fixed with the upper first pressing strip 62, the other first sliding block 63 is fixed with the first pressing strip 62 positioned below, a pair of vertically symmetrical placed longitudinal heat seal strips 64 are arranged between the first pressing strips 62, the first pressing strips 62 are coaxially placed with the first pressing strips 64, a plurality of uniformly distributed first sliding rods 65 are fixedly arranged between the first pressing strips 62 and the corresponding longitudinal heat seal strips 64, the first sliding rods are vertically placed with the first sliding rods 66, the first sliding rods 66 are uniformly arranged on the first sliding rods and the second sliding rods are uniformly arranged, and the first sliding rods are uniformly arranged on the first sliding rods and are in a coaxial line, and the first sliding rods are arranged on the first sliding rods and are in a coaxial line, and the first sliding rods and are arranged on the first sliding rods and are in a coaxial line;

the two cloth rolls pass through the longitudinal heat sealing mechanism 6, so that the edges of the cloth are positioned between the upper and lower longitudinal heat sealing strips 64 of the longitudinal heat sealing mechanism 6 on the two sides, the first sliding block 63 is moved to drive the first pressing strip 62, so that the two first pressing strips 62 are mutually close, the first pressing strip 62 drives the first telescopic rod 65, the second spring 66 and the longitudinal heat sealing strips 64, the upper and lower longitudinal heat sealing strips 64 are mutually attached and extruded, the edges of the two cloth are heat-sealed by heating, the upper and lower longitudinal heat sealing strips 64 are mutually separated after the heat sealing of one section of cloth is finished, and then the upper and lower longitudinal heat sealing strips 64 are mutually attached to heat-seal the cloth again when a new section of cloth is moved into the longitudinal heat sealing mechanism 6 by matching with the pulling of the free end of the cloth roll, so that the heat sealing of the longitudinal edges of the cloth is continuously and repeatedly finished;

the first telescopic rod 65 and the second spring 66 can buffer the mutual lamination and extrusion between the two longitudinal heat sealing strips 64, and avoid damage caused by excessive collision between the longitudinal heat sealing strips 64.

In order to prevent the movement of the longitudinal heat sealing mechanisms 6 on both sides from being influenced and simultaneously facilitate the control of the longitudinal heat sealing strips 64 in the longitudinal heat sealing mechanisms 6 on both sides to keep synchronous movement, a side surface of the moving plate 61 far away from the first pressing strip 62 is provided with a first rotating shaft which is in rotating connection, the first rotating shaft is coaxially arranged with the rotating roller 3, a first gear 9 which is coaxially arranged is fixedly sleeved on the first rotating shaft, a pair of straight racks 10 which are symmetrically arranged in center are respectively engaged on the first gear 9, the straight racks 10 are coaxially arranged with the first sliding grooves, the straight racks 10 are respectively in one-to-one correspondence with the first sliding grooves and are in sliding clamping connection with the straight racks 10 in the corresponding first sliding grooves, one end of the first rotating shaft far away from the moving plate 61 is fixedly sleeved with a second gear 11 which is coaxially arranged, a pair of symmetrically arranged second connecting pieces are fixedly arranged on the supporting table 1, a second rotating shaft 12 which is rotationally connected is arranged between the second connecting pieces, the second rotating shaft 12 and the rotating roller 3 are coaxially arranged, a second sliding groove which is coaxial to the second rotating shaft 12 is formed in the second rotating shaft 12, a third gear 13 which is coaxially arranged is sleeved at two ends of the second rotating shaft 12, the third gear 13 is in sliding clamping connection with the second sliding groove, a first annular synchronous toothed belt 14 is sleeved between the second gear 11 and the third gear 13 at the same side, a moving frame 15 is fixed on one side surface of the moving plate 61 close to the second gear 11, the third gear 13 and the first annular synchronous toothed belt 14 are all positioned in the moving frame 15, tooth surfaces at two sides of the first gear 9 and the third gear 13 are attached to the inner side frame wall of the moving frame 15, the second rotating shaft 12 passes through the moving frame 15 and is in sliding connection with the moving frame 15, a first telescopic cylinder 16 which is vertically arranged is fixed on any moving plate 61, a connecting block is fixed on a telescopic rod of the first telescopic cylinder 16, the connecting block is fixed with any straight rack 10;

through the expansion and contraction of the first expansion cylinder 16, the expansion rod of the first expansion cylinder 16 sequentially drives the connecting block, the straight toothed bar 10, the first gear 9, the first sliding block 63, the first pressing bar 62, the first expansion rod 65, the second spring 66 and the longitudinal heat sealing bars 64, the mutual separation or approaching of the upper and lower longitudinal heat sealing bars 64 in the side longitudinal heat sealing mechanism 6 is controlled, simultaneously, the first gear 9 rotates to sequentially drive the first rotating shaft, the second gear 11, the first annular synchronous toothed belt 14 and the third gear 13, the third gear 13 drives the second rotating shaft 12, the second rotating shaft 12 drives the other third gear 13, the other third gear 13 sequentially drives the second gear 11, the first rotating shaft, the first gear 9 and the straight toothed bar 10 through the first annular synchronous toothed belt 14, finally, the mutual separation or approaching of the upper and lower longitudinal heat sealing bars 64 in the other side longitudinal heat sealing mechanism 6 is synchronously controlled, and simultaneously, when the first connecting piece 7 drives the longitudinal heat sealing mechanism 6 to move, the moving plate 61 drives the moving frame 15, the third gear 13 and the annular synchronous toothed belt to synchronously move, the other third gear 13 drives the second rotating shaft 12, the other third gear 13 and the other annular synchronous toothed belt 13 drives the first rotating shaft 12, the first gear and the other annular synchronous toothed bar 13 to sequentially move, and the heat sealing mechanism 6 to move longitudinally and the longitudinal heat sealing bars 6 simultaneously.

In order to facilitate the transverse heat seal of the cloth, the transverse heat seal mechanism 8 comprises a pair of second pressing strips 81 which are vertically symmetrical and horizontally placed, the second pressing strips 81 and the first pressing plate 4 are vertically placed, a pair of transverse heat seal strips 82 which are vertically symmetrical are arranged between the second pressing strips 81, the transverse heat seal strips 82 are in one-to-one correspondence with the second pressing strips 81, and a plurality of second telescopic rods 83 which are uniformly distributed and are vertically placed are fixed between the transverse heat seal strips 82 and the corresponding second pressing strips 81; the free end of the cloth passes through the space between the two transverse heat sealing strips 82, and when the cloth is required to be transversely heat sealed, the two transverse heat sealing strips 82 are moved to be close to each other to transversely heat seal the cloth.

In order to facilitate the opening of perforation lines on the packaging bag after transverse heat sealing, a fixing strip 17 which is coaxially arranged with the transverse heat sealing strip 82 is arranged, the fixing strip 17 is fixed with the transverse heat sealing strip 82 positioned above, the fixing strip 17 is positioned at one side of the transverse heat sealing strip 82 close to the longitudinal heat sealing mechanism 6, and a plurality of perforation needles which are uniformly distributed along the axial direction of the fixing strip 17 are arranged below the fixing strip 17; when the two transverse heat sealing strips 82 are close to each other and heat-seal with the cloth, the hole needle simultaneously opens the perforation line to the cloth.

In order to facilitate the rolling of the cloth after the heat sealing is finished and the perforation lines are simultaneously arranged, a pair of symmetrically arranged connecting plates 18 are fixed on the supporting table 1 far away from the supporting plate 2, a pair of rotationally connected conveying rollers 19 are arranged between the connecting plates 18, the conveying rollers 19 are coaxially arranged with the rotating rollers 3, a third rotating shaft coaxially arranged is fixed on any conveying roller 19, the third rotating shaft is rotationally connected with the connecting plates 18, a mounting seat is fixed on any connecting plate 18, a first rotating motor 20 is fixed on the mounting seat, the output end of the first rotating motor 20 is fixedly connected with the third rotating shaft, a rolling roller 21 rotationally connected is arranged between the connecting plates 18, the rolling roller 21 and the conveying rollers 19 are coaxially arranged and are positioned under the conveying rollers 19, through grooves 211 coaxially arranged are arranged on the rolling roller 21, rod sleeves coaxially arranged are fixedly at two ends of the through grooves 211, a second rotating motor is fixed on any connecting plate 18, and the output end of the second rotating motor is fixedly connected with the rolling roller 21; firstly, continuously performing transverse heat sealing twice at the position of the cloth roll close to the free end, wherein part of the cloth edge between the two transverse heat sealing is not subjected to longitudinal heat sealing, and then pulling the cloth roll to the free end of the cloth roll to sequentially perform normal bag making work through a longitudinal heat sealing mechanism 6 and a transverse heat sealing mechanism 8; then, after the free end of the cloth roll is completely heat-sealed and a cloth section provided with perforation lines is wound on the conveying roller 19, the two sides of the cloth free end continuously and transversely heat-sealed section are respectively sleeved on rod sleeves in the winding roller 21, the first rotating motor 20 is started, the output end of the first rotating motor 20 drives a third rotating shaft, the third rotating shaft drives the conveying roller 19, and the conveying roller 19 rotates to convey the cloth, so that uniform pulling of the cloth is realized; meanwhile, when the longitudinal heat sealing mechanism 6 performs heat sealing operation, the second rotating motor is started, the second rotating motor drives the winding roller 21, and the winding roller 21 winds up the cloth sections with the heat sealing and perforation lines.

In order to carry out transverse heat sealing processing on the packaging bag with the required specification length, when the cloth passes through the distance of the bag making length, the cloth is convenient to carry out transverse heat sealing through the transverse heat sealing mechanism 8 in time, a pair of support bars 22 which are vertically and symmetrically arranged are fixed on the supporting table 1, the support bars 22 are respectively fixed with two second pressing bars 81 which are vertically and symmetrically arranged, a third spring 84 which is coaxially arranged is sleeved on each second telescopic rod 83, one end of each third spring 84 is respectively fixed with each second pressing bar 81, the other end of each third spring 84 is respectively fixed with the transverse heat sealing bar 82, the third springs 84 are always in a compressed state, a fixing plate 23 is fixed at the upper end of the support bar 22, a pair of square shaft bars 24 which are symmetrically and vertically arranged are respectively fixed at the lower end of the fixing plate 23, each square shaft bar 24 is respectively positioned at one end of the transverse heat sealing mechanism 8 which is far away from the supporting plate 2, each square shaft bar 24 is respectively sleeved with a second sliding block 25 which is in sliding connection, a rectangular groove is formed on one side of the second sliding block 25 close to the supporting plate 2, a wedge-shaped surface is formed on one side of the lower end of the second sliding block 25 close to the supporting plate 2, a symmetrically placed sleeve 26 is arranged right below the fixed plate 23, the sleeve 26 is positioned on one side of the transverse heat seal mechanism 8 close to the second sliding block 25, one side of the sleeve 26 close to the transverse heat seal mechanism 8 is in an opening shape, the sleeve 26 is fixed with the fixed plate 23 through a third connecting piece, the sleeve 26 and the first pressing strip 62 are coaxially placed, the central axis of the sleeve 26 is positioned in the symmetrical plane of the two transverse heat seal strips 82, connecting shafts coaxially placed are arranged in the sleeve 26 and are slidably connected with the sleeve 26, a first wedge block 27 is fixed on one end of the connecting shaft far from the second sliding block 25, one end of the first wedge block 27 far from the second sliding block 25 is in an isosceles triangle block shape symmetrically placed on the symmetrical plane of the two transverse heat seal strips 82, the end, close to the second sliding block 25, of the first wedge block 27 is rectangular, the first wedge block 27 can completely move into the sleeve 26, the second wedge block 28 is fixed at the end, close to the second sliding block 25, of the connecting shaft, the upper end, close to the second sliding block 25, of the second wedge block 28 is inclined wedge surface shape which is obliquely upwards placed towards the transverse heat sealing mechanism 8, a fourth spring 29 is fixed between the second wedge block 28 and the sleeve 26, the fourth spring 29 is sleeved on the connecting shaft, and the fourth spring 29 is always in a compressed state;

when the lower end of the second sliding block 25 is attached to the supporting table 1, the second wedge blocks 28 are fixed with the side walls of the second sliding block 25, the groove surface height of the upper end of the rectangular groove is just below the lower end surface of the second wedge blocks 28, and the first wedge blocks 27 are just between the two transverse heat sealing strips 82;

the third rotating shaft is fixedly sleeved with a fourth gear 30 which is coaxially placed, one end, close to the supporting plate 2, of the side walls of the two sides of the supporting table 1 is provided with a fifth gear 31 which is rotationally connected, the fifth gear 31 and the fourth gear 30 are coaxially placed, a second annular synchronous toothed belt 32 is sleeved between the fourth gear 30 and the fifth gear 31, a plurality of uniformly distributed fixing clamps are fixedly arranged on the second annular synchronous toothed belt 32, the fixing clamps are fixedly provided with a deflector rod 33 which is coaxially placed with the rotating roller 3, and the deflector rod 33 can be in wedge surface extrusion contact with the lower end of the second sliding block 25;

the distance between adjacent fixed clamps is changed and adjusted by changing the number of the fixed clamps and the deflector rods 33 which are uniformly distributed on the second annular synchronous toothed belt 32, and the distance between the adjacent fixed clamps is the length of the packaging paper to be processed; the output end of the first rotating motor 20 drives the third rotating shaft, the fourth gear 30, the annular synchronous toothed belt, the fixing clamp and the deflector rod 33, the deflector rod 33 is in extrusion contact with the wedge surface at the lower end of the second sliding block 25 in the moving process, the second sliding block 25 moves upwards, the fourth spring 29 is matched to push the second wedge block 28 and the connecting shaft, the second wedge block 28 moves into the rectangular groove, meanwhile, the first wedge block 27 moves out from between the two transverse heat sealing strips 82, the two transverse heat sealing strips 82 are mutually matched to carry out heat sealing on cloth by being matched with the pushing of the third spring 84, and the heat sealing mutual matching of the transverse heat sealing strips 82 is controlled in time according to the required length of a packaging bag to be processed.

In order to facilitate the timely reset of the first wedge block 27 to separate the two transverse heat sealing strips 82 after the mutual lamination of the transverse heat sealing strips 82 is completed, a pair of symmetrically placed second telescopic cylinders 34 are arranged below the fixed plate 23, the second telescopic cylinders 34 are in one-to-one correspondence with the second sliding blocks 25, and telescopic rods of the second telescopic cylinders 34 can be in extrusion contact with the second sliding blocks 25; by opening the second telescopic cylinder 34, the telescopic rod stretches to push the second sliding block 25 to move downwards, the second sliding block 25 moves downwards to enable the rectangular groove to be in extrusion contact with the second wedge block 28, the second wedge block 28 pushes the connecting shaft and the first wedge block 27, the first wedge block 27 is inserted between the two transverse heat sealing strips 82, and the two transverse heat sealing strips 82 are separated from each other.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the foregoing embodiments, which have been described in the foregoing description merely illustrates the principles of the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined in the appended claims.

Claims (8)

1. The packaging bag making process and device comprises a supporting table (1), and is characterized in that one end of the supporting table (1) is fixedly provided with a mounting plate, a pair of symmetrically placed supporting plates (2) are fixedly arranged on the mounting plate, a pair of rotating rollers (3) which are vertically symmetrically placed are arranged between the supporting plates (2), two ends of each rotating roller (3) are detachably connected with the supporting plates (2), a pair of vertically symmetrically placed spreading rollers are arranged between the two rotating rollers (3), the spreading rollers are coaxially placed with the rotating rollers (3), and two ends of each spreading roller are fixedly connected with the supporting plates (2);

a pair of pressing plates (4) which are vertically arranged are arranged between the supporting plates (2), a pair of sliding rods which are coaxially arranged with the rotating rollers (3) are fixed between the supporting plates (2), the sliding rods penetrate through the pressing plates (4) and are in sliding connection with the pressing plates (4), first springs (5) which are coaxially arranged are arranged at two ends of the sliding rods, one ends of the first springs (5) are fixed with the supporting plates (2), and the other ends of the first springs (5) are fixed with the pressing plates (4);

the supporting bench (1) is provided with a pair of symmetrically placed longitudinal heat sealing mechanisms (6), the longitudinal heat sealing mechanisms (6) are in a horizontal placement state perpendicular to the axis direction of the rotating roller (3), the longitudinal heat sealing mechanisms (6) are in one-to-one correspondence with the pressing plates (4), first connecting pieces (7) are fixed between the longitudinal heat sealing mechanisms (6) and the corresponding pressing plates (4), the supporting bench (1) is provided with a transverse heat sealing mechanism (8), the transverse heat sealing mechanism (8) and the rotating roller (3) are in a coaxial placement state, and the transverse heat sealing mechanism (8) is located at one end, far away from the supporting plate (2), of the longitudinal heat sealing mechanism (6).

2. The bag making process and device according to claim 1, wherein the longitudinal heat sealing mechanisms (6) comprise moving plates (61), one ends of the first connecting pieces (7) are fixed with the pressing plates (4), the other ends of the first connecting pieces (7) are fixed with the moving plates (61), a pair of vertically symmetrical and horizontally placed first pressing strips (64) are arranged on one side surface of the moving plates (61) close to each other, the first pressing strips (62) are vertically placed with the rotating roller (3), a pair of vertically placed first sliding grooves are formed in the moving plates (61), first sliding blocks (63) which are in sliding clamping connection are arranged in the first sliding grooves, the first sliding blocks (63) are in one-to-one correspondence with the first pressing strips (62), any one first sliding block (63) is fixed with the first pressing strips (62) above, a pair of vertically symmetrical heat sealing strips (64) are arranged between the first pressing strips (62), the longitudinal heat sealing strips (64) are in coaxial and vertically placed with the first pressing strips (62) in one-to-one correspondence, the first sliding strips (64) are uniformly placed between the first sliding strips (62) and the first sliding strips (64) are in one-to-one correspondence, the heat sealing strips (65) are uniformly placed between the first sliding strips (64) and the first sliding strips (62) and the first sliding strips, and the first telescopic rods (65) are respectively sleeved with a second spring (66) which is coaxially placed, one ends of the second springs (66) are respectively fixed with the first pressing strips (62), and the other ends of the second springs (66) are respectively fixed with the longitudinal heat sealing strips (64).

3. The bag making process and device according to claim 2, wherein a side surface of the moving plate (61) far away from the first pressing strip (62) is provided with first rotating shafts which are in rotary connection, the first rotating shafts are coaxially placed with the rotating roller (3), first gears (9) which are coaxially placed are fixedly sleeved on the first rotating shafts, a pair of straight racks (10) which are symmetrically placed in center are connected on the first gears (9) in a meshed mode, the straight racks (10) are coaxially placed with the first sliding grooves, the straight racks (10) are in one-to-one correspondence with the first sliding grooves and are in sliding clamping connection with the first sliding grooves, the straight racks (10) are fixed with the corresponding straight racks (10) in the first sliding grooves, one ends of the first rotating shafts far away from the moving plate (61) are fixedly sleeved with second gears (11) which are coaxially placed, a pair of symmetrically placed second connecting pieces are fixedly arranged on the supporting table (1), second rotating shafts (12) which are in rotary connection are arranged between the second connecting pieces, the second rotating shafts (12) and the rotating roller (3) are coaxially placed, the second rotating shafts (12) and the second rotating shafts are coaxially connected with the rotating shafts are coaxially placed, the second rotating shafts (12) and the rotating shafts are fixedly sleeved on the supporting table (1), the second connecting shafts are fixedly connected with the first rotating shafts (12) and are fixedly sleeved with second gears (11), two ends of the first rotating shafts (13) and are fixedly connected with the second rotating shafts, and are fixedly connected with second rotating shafts (12) respectively, and are fixedly connected with second connecting shafts, and 13 respectively, and one connecting shafts, and 13 coaxial shafts respectively have one connecting shafts, the movable plate (61) is close to a side face of the second gear (11) and is fixedly provided with a movable frame (15), the second gear (11), the third gear (13) and the first annular synchronous toothed belt (14) are all located in the movable frame (15), tooth surfaces on two sides of the first gear (9) and the third gear (13) are attached to inner side frame walls of the movable frame (15), the second rotating shaft (12) penetrates through the movable frame (15) and is in sliding connection with the movable frame (15), any movable plate (61) is fixedly provided with a first telescopic cylinder (16) which is vertically placed, a connecting block is fixedly arranged on a telescopic rod of the first telescopic cylinder (16), and the connecting block is fixedly arranged on any straight rack (10).

4. The bag making process and device according to claim 1, wherein the horizontal heat sealing mechanism (8) comprises a pair of vertically symmetrical second pressing strips (81) which are horizontally placed, the second pressing strips (81) are vertically placed with the first pressing plate (4), a pair of vertically symmetrical horizontal heat sealing strips (82) are arranged between the second pressing strips (81), the horizontal heat sealing strips (82) are in one-to-one correspondence with the second pressing strips (81), and a plurality of vertically placed second telescopic rods (83) which are uniformly distributed are fixed between the horizontal heat sealing strips (82) and the corresponding second pressing strips (81).

5. The bag making process and apparatus according to claim 4, wherein a fixing strip (17) coaxially disposed with the transverse heat sealing strip (82) is provided, the fixing strip (17) is fixed with the transverse heat sealing strip (82) located above, the fixing strip (17) is located at one side of the transverse heat sealing strip (82) close to the longitudinal heat sealing mechanism (6), and a plurality of hole needles uniformly distributed along the axial direction of the fixing strip (17) are provided below the fixing strip (17).

6. The bag making process and device according to claim 1, characterized in that a pair of symmetrically placed connecting plates (18) are fixed on the supporting table (1) far away from the supporting plate (2), a pair of rotationally connected conveying rollers (19) are arranged between the connecting plates (18), the conveying rollers (19) are all coaxially placed with the rotating rollers (3), third rotating shafts coaxially placed are fixed on any conveying roller (19), the third rotating shafts are all rotationally connected with the connecting plates (18), mounting seats are fixed on any connecting plate (18), a first rotating motor (20) is fixed on each mounting seat, the output end of the first rotating motor (20) is fixedly connected with the third rotating shafts, a rotationally connected rolling roller (21) is arranged between the connecting plates (18), the rolling roller (21) and the conveying rollers (19) are coaxially placed and are located under the conveying rollers (19), through grooves (211) which are coaxially placed are formed in the rolling roller (21), rod sleeves which are coaxially placed are fixedly arranged at two ends of the through grooves (211), a second rotating motor is fixed on any connecting plate (18), and the second rotating motor is fixedly connected with the second rotating motor (21).

7. The bag making process and device according to claim 6, wherein a pair of support bars (22) which are vertically and symmetrically arranged are fixed on the supporting table (1), the support bars (22) are respectively fixed with two second pressing bars (81) which are vertically and symmetrically arranged, a third spring (84) which is coaxially arranged is respectively sleeved on the second telescopic rod (83), one end of the third spring (84) is respectively fixed with the second pressing bars (81), the other end of the third spring (84) is respectively fixed with a transverse heat sealing bar (82), the third spring (84) is always in a compressed state, a fixing plate (23) is fixed at the upper end of the support bar (22), the lower end of the fixed plate (23) is fixedly provided with a pair of square shaft rods (24) which are symmetrically arranged and are vertically arranged, the square shaft rods (24) are respectively positioned at one end of the transverse heat seal mechanism (8) far away from the supporting plate (2), the square shaft rods (24) are respectively sleeved with a second sliding block (25) which is in sliding connection, one side of the second sliding block (25) close to the supporting plate (2) is provided with a rectangular groove, one side of the lower end of the second sliding block (25) close to the supporting plate (2) is in a wedge-shaped surface, a pair of symmetrically arranged sleeves (26) are respectively arranged right below the fixed plate (23), the sleeves (26) are respectively positioned at one side of the transverse heat seal mechanism (8) close to the second sliding block (25), one side of the sleeves (26) close to the transverse heat seal mechanism (8) is in an opening shape, the sleeve (26) is fixed with the fixed plate (23) through a third connecting piece, the sleeve (26) and the first pressing strip (62) are coaxially placed, the central axes of the sleeve (26) are located in the symmetrical planes of the two transverse heat sealing strips (82), connecting shafts which are coaxially placed are arranged in the sleeve (26), the connecting shafts are slidably connected with the sleeve (26), a first wedge (27) is fixed at one end of each connecting shaft, which is far away from the second sliding block (25), the end, which is far away from the second sliding block (25), of each first wedge (27) is in an isosceles triangle block shape which is symmetrically placed relative to the symmetrical planes of the two transverse heat sealing strips (82), the end, which is close to the second sliding block (25), of each first wedge (27) can completely move into the sleeve (26), a second wedge (28) is fixedly arranged at the end, which is close to the second sliding block (25), of each second wedge (28) is inclined surface which is obliquely placed on the transverse heat sealing mechanism (8), and a fourth spring (29) is fixedly arranged between the first wedge (29) and the fourth spring sleeve;

when the lower end of the second sliding block (25) is attached to the supporting table (1), the second wedge blocks (28) are fixed with the side walls of the second sliding block (25), the groove surface height of the upper end of the rectangular groove is just below the lower end surface of the second wedge blocks (28), and the first wedge blocks (27) are just between the two transverse heat sealing strips (82);

the third rotating shaft is fixedly sleeved with a fourth gear (30) which is coaxially placed, one end, close to a supporting plate (2), of the side walls of two sides of the supporting table (1) is provided with a fifth gear (31) which is rotationally connected, the fifth gear (31) is coaxially placed with the fourth gear (30), a second annular synchronous toothed belt (32) is sleeved between the fourth gear (30) and the fifth gear (31), a plurality of evenly distributed fixing clamps are fixedly arranged on the second annular synchronous toothed belt (32), a deflector rod (33) which is coaxially placed with the rotating roller (3) is fixedly arranged on the fixing clamps, and the deflector rod (33) can be in wedge surface extrusion contact with the lower end of the second sliding block (25).

8. The bag making process and apparatus as claimed in claim 7, wherein a second telescopic cylinder (34) is symmetrically disposed under the fixing plate (23), the second telescopic cylinders (34) are in one-to-one correspondence with the second sliders (25), and the telescopic rods of the second telescopic cylinders (34) are in pressing contact with the second sliders (25).