CN114347561A

CN114347561A - Novel packaging bag production line

Info

Publication number: CN114347561A
Application number: CN202210098497.XA
Authority: CN
Inventors: 张兴伟; 王双喜; 陈新辉; 张健; 林凯旭; 陈洁群
Original assignee: Jieyang City Qunxing Machinery Industrial Co ltd
Current assignee: Jieyang City Qunxing Machinery Industrial Co ltd
Priority date: 2022-01-26
Filing date: 2022-01-26
Publication date: 2022-04-15

Abstract

The invention discloses a novel packaging bag production line which comprises a feeding film discharging mechanism, a traction sealing and cutting mechanism, a blanking and bag collecting mechanism and a centralized control module, wherein the feeding film discharging mechanism, the traction sealing and cutting mechanism and the blanking and bag collecting mechanism are sequentially arranged along the conveying direction of coiled packaging bags respectively, and a bag stacking device is arranged between the traction sealing and cutting mechanism and the blanking and bag collecting mechanism. The centralized control module is arranged on the outer side of the feeding and film discharging mechanism. The full-automatic intelligent feeding and discharging device realizes full-automatic intelligent feeding and discharging of the feeding shaft, and has the advantages of high working efficiency of the traction sealing mechanism and the blanking bag receiving mechanism, high processing precision, low error rate and greatly reduced labor cost.

Description

Novel packaging bag production line

Technical Field

The invention relates to the technical field of packaging bag forming equipment, in particular to a novel packaging bag production line.

Background

At present, a continuous rolling type film bag production line generally comprises a feeding machine, a sealing machine, a point cutting machine and a material receiving machine, wherein the sealing and the point cutting are two indispensable processes. In the prior art, more bag-making production lines independently open the two processes, so that the bag-making production lines are large in size and high in manufacturing cost. Also there are some bag machines, can set up hot sealing knife and some breaking knife at same station, be located the top of semi-manufactured goods lapping wrapping bag simultaneously, drive hot sealing knife and the simultaneous up-and-down motion of breaking knife through drive arrangement simultaneously, accomplish simultaneously and seal and cut off the step with the point, but this kind of structure is difficult to the pressure of independent adjustment sealing buckle sword or point breaking knife, cause easily that the quality of sealing is poor or the cutting quality is poor for the point, and both exert pressure to semi-manufactured goods lapping wrapping bag in the syntropy simultaneously, make semi-manufactured goods lapping wrapping bag be difficult to the tensioning, easy wrinkling or deformation etc..

The feeder is responsible for uniformly and quickly conveying the coiled packing bags of the thin semi-finished products manufactured by the film blowing machine to the sealing machine with the minimum tension. The whole roll of weight of film material book is big, and the material loading is troublesome, and traditional material loading mode adopts manual operation, has great safety problem, and inefficiency leads to manufacturing cost higher simultaneously, can't realize automation line.

The fixed knot of current pay-off axle on movable rack constructs comparatively simply, and adopts artifical manual operation inefficiency, and fixed knot constructs the long-time continuous operation state lower spacing effect not good.

At the present stage, the labor force of China is in short supply, and in order to reduce the labor cost and improve the working efficiency, the automatic punching of the plastic bag becomes especially important for the production of the plastic bag.

Disclosure of Invention

The invention aims to solve the technical problem of providing a novel packaging bag production line.

In order to achieve the above object, the present invention discloses a novel packaging bag production line, comprising:

the film feeding and discharging mechanism comprises a fixed bottom frame, a movable frame, a first swing arm, a second swing arm, a reciprocating mechanism, a pair of feeding driving mechanisms, a pair of limiting devices and a pair of shaft withdrawing devices, wherein the movable frame is movably arranged on the fixed bottom frame, and the reciprocating mechanism drives the movable frame to reciprocate left and right on the fixed frame;

the first swing arm and the second swing arm are respectively arranged on two sides of the front end of the movable rack at intervals, a first groove and a second groove are arranged at the top of one end of the first swing arm and the top of one end of the second swing arm, a third groove and a fourth groove are respectively arranged above two side plates of the movable rack in the length direction, the feeding driving mechanism drives the first swing arm and the second swing arm to upwards overturn so that a packaging material roll moves from the first groove and the second groove to the third groove and the fourth groove, then the packaging material roll is wound by the fixed chassis and a guide roller on the movable rack and is conveyed to the traction sealing and cutting mechanism, the pair of limiting devices are respectively arranged on two side walls of the movable rack in the length direction, the pair of shaft withdrawing devices are respectively arranged on two outer side surfaces of the movable rack, and the side wall of the movable rack in the length direction is provided with a margin monitoring module, the allowance monitoring module monitors the allowance of the coiled packaging bags on the third groove and the fourth groove;

first detection devices are arranged in the first groove and the second groove, and second detection devices are arranged in the third groove and the fourth groove;

the traction sealing and cutting mechanism comprises a heat sealing mechanism, a spot-breaking mechanism and a bag roll conveying mechanism, the heat sealing mechanism comprises a heat sealing cutter and a first base plate, the heat sealing cutter is arranged above a semi-finished roll packaging bag in a liftable manner, the first base plate is arranged below the semi-finished roll packaging bag and coincides with the projection of the heat sealing cutter, the spot-breaking mechanism comprises a spot-breaking cutter, a second base plate and a bag pressing cutter, the second base plate is arranged adjacent to the first base plate, the spot-breaking cutter is arranged between the first base plate and the second base plate in a liftable manner, a cutting edge of the spot-breaking cutter faces towards the semi-finished roll packaging bag, the bag pressing cutter is arranged above the semi-finished roll packaging bag in a liftable manner, two ends of the spot-breaking cutter coincide with the projection of the first base plate and the projection of the second base plate respectively, the bag roll conveying mechanism is used for conveying the semi-finished roll packaging bag to move into the heat sealing mechanism and the spot-breaking mechanism, the heat sealing knife, the point breaking knife and the bag pressing knife are driven to lift by a driving mechanism;

the punching and bag-collecting mechanism is provided with a bag-stacking device between the traction sealing and cutting mechanism and the punching and bag-collecting mechanism, independent packaging bags output by the traction sealing and cutting mechanism are stacked between the traction sealing and cutting mechanism and the punching and bag-collecting mechanism through the bag-stacking device, the punching and bag-collecting mechanism comprises a punching device, a clamping device and a conveying device, and the clamping device clamps the packaging bags at the bag-stacking device to punch through the punching device and then clamps the packaging bags on the conveying device;

the centralized control module is arranged on the outer side of the feeding and film releasing mechanism, and the feeding driving mechanism, the allowance monitoring module, the first detection device, the second detection device, the limiting device and the shaft withdrawing device are respectively and electrically connected with the centralized control module;

when the first detection device detects the packaging bag material roll, a control signal is sent to the centralized control module, so that the centralized control module sends a starting control signal to the feeding driving mechanism, and the packaging bag material roll is moved into the third groove and the fourth groove by the upward turning of the first swing arm and the second swing arm;

when the second detection device detects the packaging bag material roll, a control signal is sent to the centralized control module, so that the centralized control module sends a starting control signal to the limiting device, and the packaging bag material roll is limited in the third groove and the fourth groove through the limiting device;

surplus monitoring module real-time detection goes out its self and wrapping bag material and rolls up the distance between the outside to will detect data transmission extremely centralized control module operation when the blowing of wrapping bag material book is accomplished, centralized control module in proper order to stop device move back a device material loading actuating mechanism sends start control signal, stop device resets, it drives the wrapping bag material book follow to move from third, fourth recess break away from to in first, the second recess, first, the downward upset of second swing arm resets.

Furthermore, the feeding and film discharging mechanism also comprises a feeding shaft, a pair of limiting sleeves are respectively arranged on the peripheries of two ends of the feeding shaft, the feeding shaft is embedded in the first groove, the second groove/the third groove and the fourth groove through the pair of limiting sleeves, a magnetic powder brake is arranged on one outer side surface of the movable rack, and one end part of the discharging shaft is in transmission connection with the magnetic powder brake;

a connecting rod is arranged at the lower part between the first swing arm and the second swing arm, and the periphery of the connecting rod is connected with the movable rack through a bearing seat; the material loading actuating mechanism comprises a single-rod cylinder and a connecting shaft, the single-rod cylinder is arranged on the inner side wall of the length direction of the movable rack in an inclined mode, the inclined direction of the single-rod cylinder is the inclined direction of the connecting rod, the connecting shaft is arranged on the first swing arm, the movable rod of the single-rod cylinder is fixedly connected with the connecting shaft, and the single-rod cylinder drives the first swing arm to overturn.

Further, the limiting device comprises a first linear driving device, a limiting movable plate and a supporting and mounting block, a limiting gap corresponding to the limiting sleeve is arranged on one side of the bottom surface of the limiting movable plate, the first linear driving device is arranged above a side plate in the length direction of the movable rack, and is spaced from the third groove, the support mounting block is arranged on the upper part of the inner side wall of the movable rack in the length direction and is positioned between the first linear driving device and the third groove, the upper part of the outer side surface of the supporting and mounting block is provided with a guide block which is opposite to the side plate of the movable frame in the length direction up and down, the bottom of the guide block is provided with a guide sliding groove, and the first linear driving device drives the limiting movable plate to slide along the guide sliding groove, so that the limiting gap is close to/far away from the limiting sleeve.

Further, the shaft withdrawing device comprises a second linear driving device and a pushing strip, the second linear driving device is obliquely arranged on the outer side surface of the movable rack in the length direction, the oblique direction of the second linear driving device is oblique to the direction of the first groove, and the pushing strip is arranged between the limiting sleeve and the second linear driving device;

an inserting part corresponding to the limiting sleeve is arranged at the end part of the other end of the pushing bar, and the second linear driving device drives the inserting part to be inserted into the limiting sleeve;

a first rubber roller, a second rubber roller, a third rubber roller, a first rubber roller, a second rubber roller and a third rubber roller are arranged at the upper section of one side in the movable rack and are sequentially arranged along the conveying direction of the film respectively;

a pair of supports are arranged on one side of the fixed base along the film conveying direction, the outer contours of the supports are L-shaped, and the inner side surfaces of the supports in the length direction are respectively fixedly connected with the two outer side surfaces of the fixed base in the length direction;

the supporting rod and the fourth rubber roller are arranged between the pair of supports respectively, the end parts of the two ends of the supporting rod are arranged on the upper part between the pair of supports, the end parts of the two ends of the fourth rubber roller are arranged in the middle between the pair of supports, and the film sequentially passes through the first rubber roller, the second rubber roller, the fourth roller and the third rubber roller.

Furthermore, the reciprocating mechanism comprises a linear driving device, a pair of first slide rails, a pair of second slide rails and an electric eye, the pair of first slide rails and the pair of second push rods are respectively and longitudinally arranged on the fixed underframe and are arranged at intervals, the electric eye is movably arranged on the supporting rod, and the electric eye is opposite to the third guide roller;

the pushing device is arranged between the pair of first sliding rails and the pair of second sliding rails;

the bottom surface of the movable rack is provided with a pair of first sliding blocks and a pair of second sliding blocks corresponding to the pair of first sliding rails and the pair of second sliding rails, and the linear driving device drives the movable rack to move longitudinally, so that the pair of first sliding blocks and the pair of second sliding blocks respectively slide along the pair of first sliding rails and the pair of second sliding rails.

Furthermore, the traction sealing and cutting mechanism further comprises a heat sealing knife adjusting mechanism, the heat sealing knife adjusting mechanism comprises a screw rod, a nut, a sliding sleeve, an upper pipe positive block, a lower pipe positive block and a spring, a cross beam is arranged above the heat sealing knife in a lifting manner, the sliding sleeve is fixedly connected to the cross beam, a through hole for the screw rod to pass through is arranged on the cross beam, a cavity with an opening facing the through hole is arranged in the sliding sleeve, the upper end of the screw rod is inserted into the through hole in a sliding manner and extends into the cavity, the nut is in threaded connection with the upper end of the screw rod, so that the upper end of the screw rod cannot leave the cavity downwards, the lower end of the screw rod is fixedly connected with the heat sealing knife, the lower pipe positive block is sleeved at one end of the screw rod in the cavity in a sliding manner, the upper pipe positive block is arranged above the screw rod in the cavity, and the spring is arranged between the upper pipe positive block and the lower pipe positive block, the cavity is provided with a top wall so that the upper pipe positive block cannot leave the cavity upwards, and the screw is provided with a boss below the lower pipe positive block so that the lower pipe positive block rises along with the screw when the screw rises;

the beam is also provided with a bag pressing knife adjusting mechanism, the bag pressing knife adjusting mechanism has the same structure as the heat sealing knife adjusting mechanism, and the lower end of a screw rod of the bag pressing knife adjusting mechanism is fixedly connected with the bag pressing knife;

the heat-sealing knife adjusting mechanism comprises a first heat-sealing knife adjusting mechanism and a second heat-sealing knife adjusting mechanism which are arranged on the cross beam and have the same structure;

the bag pressing knife adjusting mechanism comprises a first bag pressing knife adjusting mechanism and a second bag pressing knife adjusting mechanism which are arranged on the cross beam and have the same structure.

Further, conveying mechanism is rolled up to bag is including rotating last rubber roll and lower rubber roll that sets up, upper and lower rubber roll lateral wall set up closely in one side of heat-seal mechanism and point breaking mechanism, go up the rubber roll and/or be provided with a plurality of circumference recesses on the lateral wall of lower rubber roll, a plurality of gas blow pipes are followed one side of upper and lower rubber roll is passed the circumference recess stretches out the opposite side of upper and lower rubber roll, and the mouth of blowing orientation heat-seal mechanism and point breaking mechanism, go up the rubber roll and/or the rubber roll is rotated by the drive arrangement drive down, gas blow pipe and air-blowing device intercommunication.

Further, the bag roll conveying mechanism further comprises a bag unfolding mechanism, a semi-formed bag roll firstly passes through the bag unfolding mechanism and then is conveyed into the heat sealing mechanism and the breaking mechanism through the bag roll conveying mechanism, the bag unfolding mechanism comprises a front roller, a rear roller and a bag passing plate arranged between the front roller and the rear roller, and the semi-formed bag roll is flattened through the top surface of the front roller, the bottom surface of the bag passing plate and the top surface of the rear roller in sequence;

the bag unfolding mechanism further comprises a gravity pressure rod arranged between the rear roller and the bag roll conveying mechanism, one end side wall of the gravity pressure rod flattens the top surface of the semi-formed bag roll, the other end of the gravity pressure rod swings to enable the gravity pressure rod to swing and lift along with the lifting of the semi-formed bag roll, and therefore the one end of the gravity pressure rod flattens the top surface of the semi-formed bag roll constantly.

Furthermore, the blanking and bag-collecting mechanism further comprises a blanking and bag-collecting rack and clamping device transmission mechanisms arranged on two sides of the length direction in the blanking and bag-collecting rack, the punching device is arranged in the middle of the blanking and bag-collecting rack, and the clamping device transmission mechanisms drive the clamping devices to reciprocate in the blanking and bag-collecting rack along the conveying direction of the packaging bags;

the punching device comprises a punching cylinder, a movable rod of the punching cylinder is provided with a cutting part, and the punching cylinder is fixedly arranged above the blanking and bag collecting rack;

the cutting part below is equipped with the rotating part, the rotating part includes rotary platform, rotary platform passes through the drive of platform rotary drive device and rotates.

Furthermore, the clamping device comprises a movable plate, a plurality of guide support plates, a plurality of movable pressure rods and a plurality of pressure rod driving devices, wherein the movable plate is longitudinally arranged in the blanking and bag collecting rack, two sides of the movable plate are in transmission connection with the clamping device transmission mechanism, the guide support plates are arranged on the movable plate at intervals, the guide support plates are opposite to the bag stacking device, the movable rods are movably arranged above the guide support plates respectively, and the movable pressure rods are driven by the pressure rod driving devices to turn over up and down, so that the movable pressure rods are close to or far away from the surfaces of the guide support plates.

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

realize the full-automatic unloading of going up of intelligence of pay-off axle, reduction in production cost when improving work efficiency greatly moves back a device structure and is convenient for maintain and can improve on current equipment, reduce the transformation cost.

The point breaking knife is independently arranged below the film roll, and the sealing knife is independently arranged above the film roll, so that the sealing knife and the point breaking knife are independent and do not influence each other, the height, the angle and the size are respectively adjusted conveniently to achieve the optimal point breaking and sealing effect, the disassembly and the replacement are easy, the point breaking and the sealing effect are better due to the fact that the point breaking knife and the point breaking knife are reversely pressed and tensioned on the film roll;

the film roll is tightly pressed between the first bottom plate and the second bottom plate by arranging the film pressing knife, so that the quality of point breaking is ensured, and the film roll outside the film pressing knife cannot be pulled;

the sealing knife is adjustable by arranging the sealing knife adjusting mechanism, the initial height of the sealing knife is adjustable by adjusting the nut, the pressure of the sealing knife is different according to different compression strokes of springs at the initial height, and therefore the pressure of the sealing knife is adjustable, and similarly, the pressure of the film pressing knife is adjustable by arranging the film pressing knife adjusting mechanism;

the levelness of the sealing cutter can be adjusted by arranging two sealing cutter adjusting mechanisms to adjust the heights of two different positions on the sealing cutter, and similarly, the levelness of the film pressing cutter can be adjusted by arranging two film pressing cutter adjusting mechanisms;

circumferential grooves are formed in the upper rubber roll and the lower rubber roll of the film feeding mechanism and used for accommodating air blowing pipes, so that the air blowing pipes can blow air along the feeding direction of the film roll, and can blow air towards the feeding direction of the film roll on the upper side and the lower side of the film roll at the same time, and the film roll is ensured to be flat when entering the sealing mechanism and the breaking mechanism;

the film roll is ensured to be flat by arranging the film spreading mechanism.

The blanking and bag-collecting mechanism has high working efficiency, high processing precision and low error rate, greatly reduces the labor cost,

drawings

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

FIG. 2 is a schematic cross-sectional view of the overall structure of a feeding and film-discharging mechanism according to an embodiment of the present invention;

FIG. 3 is a perspective view of the overall structure of a feeding and film-releasing mechanism according to an embodiment of the present invention;

FIG. 4 is a schematic perspective view of another angle of the overall structure of a feeding and film-releasing mechanism according to the present invention;

FIG. 5 is an enlarged view of the portion A of FIG. 4;

FIG. 6 is a schematic structural view of the shaft retracting device of the present invention;

FIG. 7 is a schematic view of the overall structure of the reciprocating mechanism of the present invention;

FIG. 8 is a schematic circuit diagram of a centralized control module according to an embodiment of the present invention;

FIG. 9 is a schematic view of the overall structure of a pulling, sealing and cutting mechanism according to an embodiment of the present invention;

FIG. 10 is a cross-sectional view showing the overall structure of a pulling, sealing and cutting mechanism according to an embodiment of the present invention;

FIG. 11 is an enlarged view of the portion B of FIG. 10;

FIG. 12 is an enlarged view of the portion C of FIG. 11;

fig. 13 is a perspective view of the overall structure of the blanking and bag-collecting mechanism according to the embodiment of the invention;

FIG. 14 is an enlarged view of a portion of FIG. 13D;

fig. 15 is a perspective view of the overall structure of a punching device according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings of fig. 1-15.

Referring to fig. 1, 2 and 3, a novel packaging bag production line comprises a feeding film placing mechanism 1, a traction sealing and cutting mechanism 2, a blanking bag collecting mechanism 3 and a centralized control module 4, wherein the feeding film placing mechanism 1, the traction sealing and cutting mechanism 2 and the blanking bag collecting mechanism 3 are sequentially arranged along the conveying direction of rolled packaging bags respectively, and a bag stacking device 5 is arranged between the traction sealing and cutting mechanism 2 and the blanking bag collecting mechanism 3. The centralized control module 4 is arranged on the outer side of the feeding and film discharging mechanism 1.

The feeding and film placing mechanism 1 comprises a fixed base frame 11, a movable frame 12, a feeding shaft 13, a first swing arm 14, a second swing arm 15, a reciprocating mechanism 16, a pair of feeding driving mechanisms 17, a pair of limiting devices 18 and a pair of shaft withdrawing devices 19. The outer contour of the movable frame is U-shaped.

The reciprocating motion of the movable rack 12 is arranged on the fixed base frame 11, the reciprocating motion mechanism 16 is arranged between the fixed rack 1 and the movable rack 12, the reciprocating motion mechanism 16 drives the movable rack 12 to reciprocate left and right on the fixed rack 1, the left and right deviation condition of the film in the discharging process is corrected, and the processing effect is prevented from being influenced.

First swing arm 14, second swing arm 15 set up on the front end both sides of activity frame 12 respectively at the interval, first swing arm 14, the inside portion of second swing arm 15 upper end is provided with first recess 141, second recess 151, and pay-off axle 13 inlays and locates in first recess 141, second recess 151, and the both sides board top of activity frame 12 length direction is provided with third recess 121, fourth recess 122 respectively, and third recess 121, fourth recess 122 are close with first swing arm 14, second swing arm 15 respectively.

In the embodiment of the invention, the first groove, the second groove, the third groove and the fourth groove are in a U shape.

The first and

second grooves

141 and 151 are each provided with a first detecting device 1A therein. The third groove 121 and the fourth groove 122 are provided with a second detection device 1B therein. The first detection device 1A and the second detection device 1B are electrically connected to the centralized control module 4, respectively.

Preferably, the first detection device and the second detection device are both electric eyes.

The pair of feeding driving mechanisms 17 are respectively arranged at two sides in the movable rack 12, the feeding driving mechanisms 17 drive the first swing arms 14 and the second swing arms 15 to turn upwards, so that openings of the first grooves 141 and the second grooves 151 are respectively communicated with the upper parts of two side plates in the length direction of the movable rack 12, and the feeding shaft 13 moves to the third grooves 121 and the fourth grooves 122 from the first grooves 141 and the second grooves 151 under the inertia effect of the turning motion of the first swing arms 14 and the second swing arms 15 to complete automatic feeding.

The pair of limiting devices 18 are respectively disposed above two side walls of the movable frame 12 in the length direction, and are respectively close to the third groove 121 and the fourth groove 122, and the feeding shaft 13 is limited in the third groove 121 and the fourth groove 122 by the pair of limiting devices 18.

The pair of shaft withdrawing devices 19 are respectively disposed on the two outer side surfaces of the movable frame 12 and respectively close to the third groove 121 and the fourth groove 122, and the feeding shaft 13 is separated from the third groove 121 and the fourth groove 122 and moved to the first groove 141 and the second groove 151 by the pair of shaft withdrawing devices 19.

A connecting rod 14A is arranged at the lower part between the first swing arm 14 and the second swing arm 15, the end parts of the two ends of the connecting rod 14A are fixedly connected with the lower parts of the first swing arm 14 and the second swing arm 15 respectively, a pair of bearing seats 14A-1 are fixedly connected to the periphery of the connecting rod 14A, the pair of bearing seats 14A-1 are arranged at intervals respectively, the bottoms of the pair of bearing seats 14A-1 are fixedly connected to one side of the movable rack 12 respectively, and the guide and support effects are achieved when the first swing arm and the second swing arm are overturned.

Referring to fig. 4 and 5, the peripheries of the two ends of the feeding shaft 13 are respectively provided with a pair of limiting sleeves 131, the limiting sleeves 131 are connected with the peripheries of the feeding shaft 13 through bearings, and the limiting sleeves in the embodiment of the invention are in an H shape in the vertical section. The feeding shaft is embedded in the first groove, the second groove/the third groove and the fourth groove through a pair of limiting sleeves.

The upper sections of the inner side walls of the first groove and the second groove are horn-shaped, so that the pair of limiting sleeves can be separated from the first groove and the second groove conveniently.

The feeding driving mechanism 17 comprises a single-rod cylinder 171 and a connecting shaft 172, the single-rod cylinder 171 is obliquely and fixedly connected to the inner side wall of the movable frame 12 in the length direction, the single-rod cylinder 171 is obliquely and fixedly connected to the connecting rod 14A, the connecting shaft 172 is fixedly connected to the middle of the second swing arm 15, and the connecting shaft 172 and the movable rod of the single-rod cylinder 171 are mutually connected through a knuckle bearing 173.

The outer side surface of the movable rack 12 is provided with a support frame 123, the outer side of the support frame 123 is fixedly connected with a magnetic powder brake 123-1, a driving gear 123-2 is arranged between the inner side of the support frame 123 and the outer side surface of the movable rack 12, the driving gear 123-2 is fixedly connected to an output shaft of the magnetic powder brake 123-1, one end of the feeding shaft 13 is fixedly connected with a driven gear 13A corresponding to the driving gear 123-2, and the driven gear 13A is in meshing transmission with the driving gear 123-2. The magnetic powder brake enables the feeding shaft to intermittently rotate to intermittently convey the semi-finished packaging bag roll.

The limiting device 18 comprises a first linear driving device 181, a limiting movable plate 182 and a supporting and installing block 183, wherein a limiting notch 182-1 corresponding to the limiting sleeve 131 is formed in one side of the bottom surface of the limiting movable plate 182, the limiting notch is arc-shaped in the embodiment of the invention, and the first linear driving device is a single-rod cylinder. The first linear driving device 181 is fixed above a side plate of the movable frame 12 in the length direction, and is spaced from the third groove 121. The supporting and mounting block 183 is fixedly connected to the upper portion of the inner side wall of the movable frame 12 in the length direction and located between the first linear driving device 181 and the third groove 121, the upper portion of the outer side surface of the supporting and mounting block 183 is fixedly connected with a guide block 183-1, the guide block 183-1 is vertically opposite to a side plate of the movable frame 12 in the length direction, a guide chute 83-1-1 is formed in the bottom of the guide block 183-1, and the limiting movable plate 182 is slidably disposed in the guide chute 83-1-1.

The limit movable plate 182 is fixedly connected with the movable rod end of the first linear driving device 181, and the first linear driving device 181 drives the limit notch 182-1 of the limit movable plate 182 to approach/leave the concave position of the limit sleeve 131. The vertical displacement of the feeding shaft in the rotation process of the third groove and the fourth groove is limited through the limiting movable plate.

Referring to fig. 6, the shaft retracting device 19 includes a second linear driving device 191, which is a single rod cylinder, and a push bar 192. The second linear driving device 191 is obliquely and fixedly connected to the outer side surface of the movable frame 12 in the length direction, the oblique direction of the second linear driving device 191 is oblique towards the second groove 151, the pushing bar 192 is arranged between the limiting sleeve 131 and the second linear driving device 191, and the end part of one end of the pushing bar 192 is fixedly connected with the movable rod of the second linear driving device 191.

The end part of the other end of the pushing bar 192 is provided with an inserting part 192-1 corresponding to the limiting sleeve 131, and the outer contour of the inserting part 192-1 is arched.

Referring to fig. 2, the upper section of one side inside the movable frame 12 is provided with a first rubber roller 124, a second rubber roller 125, a third rubber roller 126, a first rubber roller 124, a second rubber roller 125, and a third rubber roller 126, which are sequentially arranged along the conveying direction of the rolled semi-finished packaging bag. The two ends of the first rubber roller 124, the second rubber roller 125, and the third rubber roller 126 are respectively fixed to the side plates of the movable frame 12 in the length direction, and the connection manner is the prior art and will not be described here.

One side of the fixed chassis 11 along the film conveying direction is provided with a pair of supports 11A, the outer contours of the pair of supports 11A are L-shaped, and the inner sides of the pair of supports 11A in the length direction are respectively fixedly connected with the two outer sides of the fixed chassis 11 in the length direction.

Referring to fig. 7, a support rod 11A-1 and a fourth rubber roller 11A-2 are respectively disposed between the pair of supports 11A, the end portions of the two ends of the support rod 11A-1 are fixedly connected to the upper portion between the pair of supports 11A, the end portions of the two ends of the fourth rubber roller 11A-2 are fixedly connected to the middle portion between the pair of supports 11A, and the rolled packaging bag is sequentially wound around the first rubber roller 124, the second rubber roller 125, the fourth rubber roller 11A-2 and the third rubber roller 126 and then is input to an external sealing and cutting machine.

The reciprocating mechanism 16 includes a third linear driving device 161, a pair of first slide rails 162, a pair of second slide rails 163, and an electric eye 164. The pair of first slide rails 162 and the pair of second slide rails 163 are respectively and longitudinally fixed on the fixed chassis 11 and are disposed at intervals. The electric eye 164 is fixedly connected to the support rod 11A-1 and opposite to the third rubber roller 126.

The third linear driving device 161 is disposed between the pair of first slide rails 162 and the pair of second slide rails 163, the linear driving device 161 is fixed to the fixed chassis 11, and an end of a movable rod of the linear driving device 161 is fixed to a bottom surface of the movable frame 12. The bottom surface of the movable frame 12 is provided with a pair of first sliders 127 and a pair of second sliders 128 corresponding to the pair of first slide rails 162 and the pair of second slide rails 163, and the third linear driving device 161 drives the movable frame 12 to move longitudinally, so that the pair of first sliders 127 and the pair of second sliders 128 slide along the pair of first slide rails 162 and the pair of second slide rails 163, respectively.

A margin monitoring module 12A is fixedly connected to one side wall of the movable frame 12 in the length direction, and the margin monitoring module 12A is parallel to the feeding shaft 13 arranged on the third groove 121 and the fourth groove 122 and monitors the margin of the packaging bag roll arranged on the feeding shaft 13.

Preferably, the residual detection module is a laser displacement sensor.

Referring to fig. 8, the centralized control module 4 includes a case 41, a display 42, and a communication centralized control module 43, the case 41 is disposed outside the cutting slider quality inspection device 2, the display 42 is embedded on the outer side surface of the case 41, the communication centralized control module 43 is disposed in the case 41, and the communication centralized control module 43 and the display 42 are electrically connected to each other.

The first detection device 1A, the second detection device 1B, the residual amount monitoring module 12A, the single-rod cylinder 171, the first linear driving device 181, the second linear driving device 191 and the third linear driving device 161 are electrically connected with the communication centralized control module 43 respectively.

The communication centralized control module 43 includes a hub chip 431, a communication system 432, and an editable logic controller 433, and the whole communication centralized control module is well known in the art and will not be described herein.

In the initial state, the first swing arm 14 and the second swing arm 15 are turned downward.

When the packaging bag roll is in operation, after the packaging bag roll is fixed on the discharging shaft 13, the discharging shaft 13 is placed above the first swing arm 14 and the second swing arm 15, so that the limiting sleeves 131 at two ends of the discharging shaft 13 are respectively placed in the first groove 141 and the second groove 151. When the first detection device 1A detects the discharging shaft 13, a control signal is sent to the communication centralized control module 43, so that the communication centralized control module 432 sends a starting control signal to the single-rod cylinder 171, the movable rod of the single-rod cylinder 171 contracts to drive the first swing arm 14 and the second swing arm 15 to turn upwards to lift the packaging bag roll off the ground, and the discharging shaft 13 rolls into the third groove 121 and the fourth groove 122 under the action of inertia.

When the position-limiting sleeve 131 is embedded in the third groove 121 and the fourth groove 122, the second detecting device 1B sends a control signal to the communication centralized control module 43, so that the communication centralized control module 43 sends a start control signal to the first linear driving device 181, and drives the position-limiting movable plate 182 to move forward to the position-limiting sleeve 131, so as to limit the discharging shaft 13 in the third groove 121 and the fourth groove 122.

Stop device uses with spacing cover cooperation, realizes the automatic spacing action of pay-off axle, compares in prior art need not manual intervention, and can directly reform transform on current equipment, greatly reduced technical improvement cost.

When the packaging bag is wound between the third rubber roller 126 and the electric eye 164, the electric eye 164 aligns the edge of one side of the packaging bag roll to perform edge tracing, the electric eye 164 detects and identifies the direction and offset of the left-right movement of the packaging bag roll in real time, and synchronously interacts data with the communication centralized control module 43, and the communication centralized control module 43 sends a control signal to the third linear driving device 161 through operation, so that the movable rack 12 performs movement opposite to the offset direction of the packaging bag roll, and the packaging bag roll is prevented from deviating due to uneven stress in the transmission process to influence subsequent processing. The deviation rectifying structure is convenient to maintain and good in long-time working stability.

The packaging bag is wound by a first rubber roller 124, a second rubber roller 125, a fourth rubber roller 11A-2 and a third rubber roller 126 in sequence and then is input into the traction sealing and cutting mechanism 2.

The surplus monitoring module 12A detects the distance between the outside of the self and the packaging bag roll in real time, and transmits detection data to the communication centralized control module 43 for operation, when the packaging bag roll is discharged, the communication centralized control module 43 sequentially sends out operation control signals to the first linear driving device 181, the second linear driving device 191 and the single-rod cylinder 171, and the working sequence is as follows:

1. the movable rod of the first linear driving device 181 is retracted and reset, so that the movable limit plate 182 is away from the position-limiting sleeve 131.

2. The movable rod of the second linear driving device 191 linearly moves to insert the insertion portion of the push bar 192 into the recess of the position-limiting sleeve 131, and pushes the position-limiting sleeve 131 to be separated from the third and

fourth grooves

121 and 122 into the first and

second grooves

141 and 151.

3. The movable rod of the single-rod cylinder 171 extends out to enable the first swing arm 14 and the second swing arm 15 to be turned downwards and reset, so that the discharging shaft 13 can be conveniently dismounted by workers.

Compared with the prior art, the full-automatic lifting and automatic separation of the feeding shaft are realized, the production cost is further reduced, the production efficiency is improved, and the full-automatic feeding device is more suitable for a full-automatic production line.

Referring to fig. 9-12, the drawing, sealing and cutting mechanism 2 includes a bag unfolding mechanism 21, a bag roll conveying mechanism 22, a heat sealing mechanism 23, a spot cutting mechanism 24 and an adjusting mechanism 25, and the semi-finished rolled packaging bag is clamped and conveyed by the bag roll conveying mechanism 22 to pass through the bag unfolding mechanism 21, the bag roll conveying mechanism 22, the heat sealing mechanism 23 and the spot cutting mechanism 24 in sequence.

The bag unfolding mechanism 21 comprises a first front roller 211, a second front roller 212, a first rear roller 214, a second rear roller 215, and a bag passing plate 213 arranged between the second front roller 212 and the first rear roller 214, wherein the semi-finished rolled packaging bags sequentially pass through the lower part of the first front roller 211, the upper part of the second front roller 212, the lower part of the bag passing plate 213, the upper part of the first rear roller 214, and the lower part of the second rear roller 215 to be unfolded; and a gravity pressure rod 216 is arranged between the second rear roller 215 and the bag roll conveying mechanism 22, the side wall of one end of the gravity pressure rod 216 flattens the top surface of the semi-finished rolled packaging bag, and the other end of the gravity pressure rod 216 is connected to the second rear roller 215 in a swinging manner, so that the gravity pressure rod 216 can swing and lift along with the lifting and descending of the semi-finished rolled packaging bag, and thus one end of the gravity pressure rod 216 flattens the top surface of the semi-finished rolled packaging bag all the time.

The bag roll conveying mechanism 22 comprises a gluing roller 221 and a gluing roller 222 which are rotatably arranged, the side walls of the gluing roller 221 and the gluing roller 222 are arranged on one side of the heat sealing mechanism 23 and one side of the breaking mechanism 24 in a close manner, a plurality of circumferential grooves 223 are formed in the side walls of the gluing roller 221 and the gluing roller 222, a plurality of air blowing pipes 224 penetrate through the circumferential grooves 223 from one sides of the gluing roller 221 and the gluing roller 222 to extend out of the other sides of the gluing roller 221 and the gluing roller 222, air blowing openings face the heat sealing mechanism 23 and the breaking mechanism 24, the gluing roller 221 and the gluing roller 222 are driven to rotate by a driving device, so that the semi-finished rolled packaging bags are pulled to pass through the bag unfolding mechanism 21, the semi-finished packaging bags are pushed to enter the heat sealing mechanism 23, and the air blowing pipes 224 are communicated with an external air blowing device (not shown in the figure).

The heat sealing mechanism 23 includes a heat sealing knife 232 and a first bottom plate 231, the heat sealing knife 232 is arranged above the semi-finished rolled packaging bag in a lifting manner, the first bottom plate 231 is arranged below the semi-finished rolled packaging bag and coincides with the projection of the heat sealing knife 232, and a heating pipe 232-1 is arranged in the heat sealing knife 232 to enable the heat sealing knife 232 to keep high temperature to heat-seal the semi-finished rolled packaging bag.

The spot-breaking mechanism 24 comprises a spot-breaking knife 242, a second base plate 241 and a bag pressing knife 243, the second base plate 241 is arranged adjacent to the first base plate 231, the spot-breaking knife 242 is arranged between the first base plate 231 and the second base plate 241 in a lifting manner, the cutting edge of the spot-breaking knife 242 faces towards the semi-finished rolled packaging bag, the bag pressing knife 243 is arranged above the semi-finished rolled packaging bag in a lifting manner, the bottom surface of the bag pressing knife 243 is provided with a recess 243-1 for the cutting edge of the spot-breaking knife 242 to extend into, and two ends of the bag pressing knife 243 at two sides of the recess 243-1 are respectively arranged above the first base plate 231 and the second base plate 241, so that the semi-finished rolled packaging bag is tightly pressed between the first base plate 231 and the second base plate 241 when the bag pressing knife 243 descends; the bag pressing knife 243 and the breaking knife 242 are driven to lift by a conventional driving device such as an air cylinder, a motor and the like;

adjustment mechanism 25 includes first and second heat-seal

knife adjustment mechanisms

2501, 2502 and first and second bag-press

knife adjustment mechanisms

2503, 2504.

The first heat sealing knife adjustment mechanism 2501 comprises a screw 252, a nut 253, a sliding sleeve 254, an upper tube positive block 256, a lower tube positive block 255 and a spring 257, a beam 251 is arranged above the heat sealing knife 232 and the bag pressing knife 243 in a lifting manner, the sliding sleeve 254 is fixedly connected to the top surface of the beam 251, the beam 251 is provided with a through hole for the screw 252 to pass through, the sliding sleeve 254 is internally provided with a cavity 254-1 with an opening facing the through hole, the upper end of the screw 252 is slidably inserted into the through hole and extends into the cavity 254-1, the nut 253 is in threaded connection with the upper end of the screw 252, the screw 252 cannot move downwards due to the width of the nut 253 being larger than the through hole, the upper end of the screw 252 cannot leave the cavity 254-1 downwards, the lower end of the screw 252 is fixedly connected with the heat sealing knife 232 through a connecting block 253, the lower tube positive block 255 is slidably sleeved at one end of the screw 252 in the cavity 254-1, the screw 252 has a boss 252-1 below the lower tube positive block 255, so that the screw 252 rises along with the lower tube positive block 255, the upper tube positive block 256 is disposed above the screw 252 in the cavity 254-1, a spring 257 is disposed between the upper and lower tube positive blocks 256, 255, and the cavity 254-1 has a top wall 254-2 such that the upper tube positive block 256 cannot move upward out of the cavity 254-1.

The first and second heat-seal

knife adjustment mechanisms

2501 and 2502 and the first and second bag-pressing

knife adjustment mechanisms

2503 and 2504 have the same structure, and the sliding sleeves 254 of the first and second heat-seal

knife adjustment mechanisms

2501 and 2502 and the first and second bag-pressing

knife adjustment mechanisms

2503 and 2504 are all fixedly connected to the cross beam 251. The screws 252 of the first and second heat-seal

knife adjustment mechanisms

2501 and 2502 are respectively connected to two different positions on the heat-seal knife 232, and the screws 252 of the first and second bag pressing

knife adjustment mechanisms

2503 and 2504 are respectively connected to two different positions on the bag pressing knife 243.

The driving device is lifted by driving the beam 251, the linkage heat sealing knife 232 and the bag pressing knife 243 are lifted synchronously, and the conventional driving device such as a motor, an air cylinder and the like, and the conventional reciprocating mechanism such as a crank-slider mechanism and the like can be adopted.

When the driving device drives the beam 251 to descend, the linkage heat sealing knife 232 descends, the heat sealing knife 232 presses the semi-finished coiled packaging bag on the first bottom plate 231, then the beam 251 descends continuously, the linkage sliding sleeve 254 descends continuously, because the heat sealing knife 232 is supported by the first bottom plate 231 and cannot descend continuously at the moment, one end of the screw 252 in the cavity 254-1 cannot descend, which is equivalent to that the upper end of the screw 252 rises relative to the cavity 254-1, as the beam 251 descends continuously in linkage sliding sleeve 254, the boss 252-1 on the screw 252 drives the lower pipe positive block 255 to rise relative to the cavity 254-1 until the upper pipe positive block 256 contacts the top wall 254-2 of the cavity 254-1, at the moment, the beam 251 descends continuously, the top wall 254-2 presses the upper pipe positive block 256 and presses the spring 257, and the elastic force of the spring 257 is the pressing force of the heat sealing knife 232.

The initial height of the screw 252 can be adjusted by adjusting the nut 254, and when the initial height of the screw 252 is higher, the compression amplitude of the spring 257 is larger, the elastic force is larger, and the pressing force of the heat sealing knife 232 is larger; when the initial height of screw 252 is lower, spring 257 is compressed to a smaller extent, and the elastic force is smaller, and the pressing force of heat-seal knife 232 is smaller, whereby the pressing force of heat-seal knife 232 can be adjusted.

The overall structure of the bag folding device 5 in this embodiment is the same as that of the prior art document (chinese patent publication No. CN210553337), and will not be described here.

Referring to fig. 1 and 13, the blanking and bag-collecting mechanism 3 includes a blanking and bag-collecting frame 31, a punching device 32, a clamping device 33, and a conveying device 34, wherein two sides of the blanking and bag-collecting frame 31 in the length direction are provided with clamping device transmission mechanisms 35, the punching device 32 is arranged in the middle of the blanking and bag-collecting frame 31, the conveying device 34 is arranged at the end of the blanking and bag-collecting frame 31, the clamping device transmission mechanisms 35 drive the clamping device 33 to clamp the packaging bag at the bag-stacking device 5, the packaging bag is punched by the punching device 32, and then the packaging bag is clamped on the conveying device 34.

The conveyor 34 in this embodiment is a flat belt conveyor.

The gripping device transmission mechanism 35 of the present embodiment is a conventional timing belt transmission mechanism, and will not be described here.

Referring to fig. 14, the clamping device 33 includes a movable plate 331, a plurality of guide support plates 332, a plurality of movable pressing rods 333, and a plurality of pressing rod driving devices 334, the movable plate 331 is longitudinally disposed in the blanking and bag-collecting rack 31, two sides of the movable plate 331 are respectively connected to the clamping device transmission mechanisms 35 at two sides of the blanking and bag-collecting rack 31 in the longitudinal direction,

a plurality of guide support plates 332 are spaced apart from each other on the movable plate 331,

the movable pressure levers 333 are rotatably arranged above the guide support plates 332 respectively, the top surfaces of the tail ends of the movable pressure levers 333 are provided with connecting parts 333-1, the pressure lever driving devices 334 are fixedly connected to the movable plate 331, the movable pressure levers 333 of the pressure lever driving devices 334 are fixedly connected with the connecting parts 333-1, and the tail ends of the movable pressure levers 333 are connected with the middle parts of the surfaces of the guide support plates 332 through rotating shafts.

The plurality of pressure lever driving devices 334 drive the plurality of movable pressure levers 333 to turn up and down, so that the bottom surfaces of the head ends of the movable pressure levers 333 are close to or far away from the surface of the head end of the guide support plate 332, and the bottom surfaces of the head ends of the movable pressure levers 333 are provided with rubber glue columns 333-2.

The ram drive 334 of this embodiment is a horizontal bar cylinder.

Referring to fig. 15, the punching device 32 includes a punching cylinder 321, a cutting part 322, and a rotating platform 323, the punching cylinder 321 is vertically fixed above the punching and bag-receiving frame 31, the cutting part 322 is fixed at an end of a movable pressing rod 333 of the punching cylinder 321, the rotating platform 323 is rotatably disposed below the cutting part 322, and the rotating platform 323 is driven to rotate by a platform rotation driving device.

The platform rotation driving device is a conventional driving device such as a rotary cylinder and a motor for driving rotation.

Referring again to fig. 13, the top surface of the rotating platform 323 is higher than the top surface of the conveying device 34, preventing the packing bag on the conveying device 34 from interfering with the linear reciprocating movement of the gripping device 33 above between the bag stacking device 5 and the conveying device 34.

Referring to fig. 1 and 15, a bag passing platform 324 is arranged between the rotating platform 323 and the bag folding device 5, and the top surface of the bag passing platform 324 is flush with the top surface of the rotating platform 323. The surface of the bag passing platform 324 at the end adjacent to the bag stacking device 5 is used for supporting stacked packaging bags. The top surface of the bag passing platform 324 is provided with a plurality of strip-shaped through holes 324-1 corresponding to a plurality of guide support plates 332, so that the front ends of the guide support plates 332 can conveniently scoop up the bottoms of the stacked packaging bags arranged on the rotating platform 323.

The use method of the plastic bag punching machine comprises the following steps:

1. the movable plate 331 moves forward to the end of the bag passing platform 324 under the action of the clamping device transmission mechanism 35, at this time, the guide support plate 332 scoops up the stacked packaging bags under the action of the forward movement of the movable plate 331, the pressure rod driving device 334 drives the movable pressure rod 333 to rotate clockwise, so that the rubber column 333-2 moves downward and is pressed, and at this time, the packaging bags are clamped between the guide support plate 332 and the rubber column 333-2;

2. the clamped packaging bag integrally moves backwards through the clamping device transmission mechanism 35, reaches the punching device 32 and is placed on the rotating platform 323;

3. the punching cylinder 321 drives the cutting part 322 to move downwards to punch a hole (punch a handle hole) in the packaging bag, the rotary cylinder rotates in a reciprocating manner while punching the hole, and the rotary platform 323 rotates in a reciprocating manner in the punching process, so that impact caused by punching can be effectively reduced;

4. after the punching is completed, the packaging bag is clamped by the manipulator, the whole packaging bag continues to move backwards through the clamping device transmission mechanism 35, and then the pressure rod driving device 334 is reset, so that the clamped packaging bag is loosened, placed on the conveying device 34 and conveyed to the next procedure for processing.

The blanking and bag-collecting mechanism is high in working efficiency, high in machining precision, low in error rate and suitable for large-scale popularization and application, and labor cost is greatly reduced.

It should be understood that the above-mentioned embodiments are merely illustrative of the technical concept and features of the present invention, and are not intended to limit the scope of the present invention, which is defined by the following claims.

Claims

1. A novel packaging bag production line is characterized by comprising:

the first swing arm and the second swing arm are respectively arranged on two sides of the front end of the movable rack at intervals, a first groove and a second groove are arranged at the top of one end of the first swing arm and the top of one end of the second swing arm, a third groove and a fourth groove are respectively arranged above two side plates of the movable rack in the length direction, the feeding driving mechanism drives the first swing arm and the second swing arm to upwards overturn so that a packaging material roll moves from the first groove and the second groove to the third groove and the fourth groove, then the packaging material roll is wound by the fixed chassis and a guide roller on the movable rack and is conveyed to the traction sealing and cutting mechanism, the pair of limiting devices are respectively arranged on two side walls of the movable rack in the length direction, the pair of shaft withdrawing devices are respectively arranged on two outer side surfaces of the movable rack, and the side wall of the movable rack in the length direction is provided with a margin monitoring module, the allowance monitoring module monitors the allowance of the coiled packaging bag positioned on the third groove and the fourth groove, the first groove and the second groove are both internally provided with a first detection device, and the third groove and the fourth groove are both internally provided with a second detection device;

when the first detection device detects a packaging bag material roll, a control signal is sent to the centralized control module, so that the centralized control module sends a starting control signal to the feeding driving mechanism to drive the first swing arm and the second swing arm to turn upwards to move the packaging bag material roll into the third groove and the fourth groove;

2. The novel packaging bag production line as claimed in claim 1, wherein the feeding and film discharging mechanism further comprises a feeding shaft, a pair of limiting sleeves are respectively arranged on the peripheries of two ends of the feeding shaft, the feeding shaft is embedded in the first groove, the second groove/the third groove and the fourth groove through the pair of limiting sleeves, a magnetic powder brake is arranged on one outer side surface of the movable rack, and one end part of the discharging shaft is in transmission connection with the magnetic powder brake;

3. The novel packaging bag production line as claimed in claim 2, wherein the limiting device comprises a first linear driving device, a limiting movable plate and a supporting and mounting block, one side of the bottom surface of the limiting movable plate is provided with a limiting notch corresponding to the limiting sleeve, the first linear driving device is arranged above one side plate in the length direction of the movable frame and is spaced from the third groove, the supporting and mounting block is arranged on the upper portion of the inner side wall in the length direction of the movable frame and is positioned between the first linear driving device and the third groove, the upper portion of the outer side surface of the supporting and mounting block is provided with a guide block, the guide block is vertically opposite to the side plate in the length direction of the movable frame, the bottom of the guide block is provided with a guide chute, and the first linear driving device drives the limiting movable plate to slide along the guide chute, and enabling the limiting notch to be close to/far away from the limiting sleeve.

4. The novel packaging bag production line as claimed in claim 3, wherein the shaft withdrawing device comprises a second linear driving device and a pushing strip, the second linear driving device is obliquely arranged on the outer side surface of the movable rack in the length direction, the oblique direction of the second linear driving device is oblique to the direction of the first groove, and the pushing strip is arranged between the limiting sleeve and the second linear driving device;

5. The novel packaging bag production line as claimed in claim 4, wherein the reciprocating mechanism comprises a linear driving device, a pair of first slide rails, a pair of second slide rails and an electric eye, the pair of first slide rails and the pair of second push rods are respectively and longitudinally arranged on the fixed underframe and are arranged at intervals, the electric eye is movably arranged on the supporting rod, and the electric eye is opposite to the third guide roller;

6. The novel packaging bag production line as claimed in claim 5, wherein the traction sealing and cutting mechanism further comprises a heat sealing knife adjustment mechanism, the heat sealing knife adjustment mechanism comprises a screw rod, a nut, a sliding sleeve, an upper pipe positive block, a lower pipe positive block and a spring, a beam is arranged above the heat sealing knife in a liftable manner, the sliding sleeve is fixedly connected to the beam, the beam is provided with a through hole for the screw rod to pass through, the sliding sleeve is internally provided with a cavity with an opening facing the through hole, the upper end of the screw rod is slidably inserted into the through hole and extends into the cavity, the nut is in threaded connection with the upper end of the screw rod, so that the upper end of the screw rod cannot leave the cavity downwards, the lower end of the screw rod is fixedly connected to the heat sealing knife, the lower pipe positive block is slidably sleeved at one end of the screw rod in the cavity, and the upper pipe positive block is arranged above the screw rod in the cavity, a spring is arranged between the upper pipe positive block and the lower pipe positive block, the cavity is provided with a top wall, so that the upper pipe positive block cannot leave the cavity upwards, and the screw is provided with a boss below the lower pipe positive block, so that the lower pipe positive block is lifted along with the screw when the screw is lifted;

7. The novel packaging bag production line as claimed in claim 6, wherein the bag roll conveying mechanism comprises a gluing roller and a lower gluing roller which are rotatably arranged, the side walls of the upper gluing roller and the lower gluing roller are arranged on one side of the heat sealing mechanism and the point breaking mechanism in a close manner, a plurality of circumferential grooves are formed in the side wall of the gluing roller and/or the lower gluing roller, a plurality of air blowing pipes penetrate through one side of the upper gluing roller and one side of the lower gluing roller and extend out of the circumferential grooves on the other side of the upper gluing roller and the other side of the lower gluing roller, air blowing openings face the heat sealing mechanism and the point breaking mechanism, the gluing roller and/or the lower gluing roller are driven to rotate by a driving device, and the air blowing pipes are communicated with an air blowing device.

8. The novel packaging bag production line as claimed in claim 7, wherein the bag roll conveying mechanism further comprises a bag unfolding mechanism, a semi-formed bag roll passes through the bag unfolding mechanism and then is conveyed into the heat sealing mechanism and the breaking mechanism through the bag roll conveying mechanism, the bag unfolding mechanism comprises a front roller, a rear roller and a bag passing plate arranged between the front roller and the rear roller, and the semi-formed bag roll is flattened through the top surface of the front roller, the bottom surface of the bag passing plate and the top surface of the rear roller in sequence;

9. The novel packaging bag production line as claimed in claim 8, wherein the blanking and bag-collecting mechanism further comprises a blanking and bag-collecting frame and clamping device transmission mechanisms arranged on two sides of the length direction in the blanking and bag-collecting frame, the punching device is arranged in the middle of the blanking and bag-collecting frame, and the clamping device transmission mechanisms drive the clamping devices to reciprocate in the blanking and bag-collecting frame along the conveying direction of the packaging bags;

10. The novel packaging bag production line as claimed in claim 9, wherein the clamping device comprises a movable plate, a plurality of guide support plates, a plurality of movable press rods, and a plurality of press rod driving devices, the movable plate is longitudinally arranged in the blanking and bag collecting rack, two sides of the movable plate are in transmission connection with the clamping device transmission mechanism, the guide support plates are arranged on the movable plate at intervals, the guide support plates are opposite to the bag stacking device, the movable rods are respectively movably arranged above the guide support plates, and the press rod driving devices drive the movable press rods to turn over up and down, so that the movable press rods are close to or away from the surfaces of the guide support plates.