CN116039158A

CN116039158A - Vacuum compression bag making machine and bag making process

Info

Publication number: CN116039158A
Application number: CN202310247479.8A
Authority: CN
Inventors: 徐晓明
Original assignee: Zhejiang Mingli Machinery Technology Co ltd
Current assignee: Zhejiang Mingli Machinery Technology Co ltd
Priority date: 2023-03-10
Filing date: 2023-03-10
Publication date: 2023-05-02

Abstract

The invention discloses a vacuum compression bag making machine and a bag making process, wherein the vacuum compression bag making machine comprises: feeding device, adjusting device, feed divider, go up membrane punching welding valve device, join station, traction device, heat sealing device, cutting knife device, class regulation breaking device, discharging device. The processing steps of the vacuum bag compression bag making process comprise: feeding, punching and welding valves, converging, longitudinally sealing and cooling, transversely sealing and cooling, thermally sealing the zipper ends, cooling the zipper ends, cutting edges, chamfering and cutting. The invention can realize full-automatic continuous operation, solves the problems that the production quality can not be ensured and the production efficiency is low in the original vacuum compression bag production process, greatly improves the production efficiency, and has good processing consistency and high production quality.

Description

Vacuum compression bag making machine and bag making process

Technical Field

The invention relates to the field of bag making, in particular to a vacuum compression bag making machine and a bag making process.

Background

In the existing bag making process, vacuum sealing bags with various specifications are needed, and particularly, the storage mode of articles is endless along with the improvement of the living standard of people. In the life of people at present, the vacuum sealing bag is often adopted to realize the storage of clothes and bedding articles, and the articles are placed into the vacuum sealing bag and then vacuumized, so that the effects of mould prevention and moth prevention are achieved, and the space occupied by the stored articles is greatly reduced. However, there are a number of problems associated with the processing of conventional vacuum sealed bags. 1. The sealed bags are different in size and different in cutting position, and the positions of the cutting devices are fixed in the production process of the conventional vacuum sealed bags, so that the conventional vacuum sealed bags are reversed by taking the cutters of the cutting devices as references, and the positions of the zipper end sealing devices and the transverse sealing devices are sequentially adjusted. The adjustment mode is very troublesome, and each transverse sealing device or pulling chain segment end sealing device needs to be adjusted in position, so that the workload of production and debugging is very large, and the production efficiency is seriously influenced. 2. In the existing production process, the end chamfering and cutting-off procedures of the products are usually carried out after the zipper end is sealed, but in the production process, errors always occur, and when the cutter cuts off, the cutter cannot be exactly cut on the central line of the chamfer every time, so that redundant burrs exist on one side of the cutting-off position, and the external integrity and the use feel of the products are seriously affected. 3. In the existing production process, when punching and welding the valve on the raw material film, the problems of incomplete punching, residual raw material film around the hole, unstable welding around the valve of the single ventilation valve and the like can always occur.

Disclosure of Invention

In order to solve the problems, the invention provides a vacuum compression bag making machine and a bag making process.

The technical scheme of the invention is that the vacuum compression bag making machine comprises:

the feeding device comprises a plurality of raw material film winding frame mechanisms and a zipper feeding mechanism;

the adjusting device comprises a plurality of adjusting arm mechanisms for receiving the raw material films and the zippers of the feeding device and adjusting the tension of the raw material films and the zippers;

the material distributing device comprises a plurality of material distributing guide rollers for receiving the raw material films and the zippers on the adjusting device and conveying the raw material films and the zippers in groups to form an upper film conveying route, a zipper conveying route and a lower film conveying route;

the upper film punching and valve welding device is used for receiving the upper film conveyed by the material distributing device, punching the upper film and welding the valve, and comprises a punching device and a valve welding device;

the converging station is provided with converging rollers for receiving an upper film conveyed by the upper film conveying route, a zipper conveyed by the zipper conveying route and a lower film conveyed by the lower film conveying route and superposing the upper film, the zipper and the lower film;

the pulling device comprises two pulling rollers, a pulling channel is formed between the two pulling rollers, the stacked films are clamped from the upper side and the lower side, and the films are pulled to move forwards together;

the heat sealing device comprises a transverse sealing device, a longitudinal sealing device and a zipper end sealing device, wherein the transverse sealing device comprises a transverse sealing heat sealing mechanism and a transverse sealing cooling mechanism, the longitudinal sealing device comprises a longitudinal sealing heat sealing mechanism and a longitudinal sealing cooling mechanism, the zipper end sealing device comprises a zipper end heat sealing mechanism and a zipper end cooling mechanism, the transverse sealing heat sealing mechanism, the longitudinal sealing heat sealing mechanism and the zipper end heat sealing mechanism all comprise an upper heat sealing cutter assembly and a lower heat sealing cutter assembly, an upper film, a zipper and a heat sealing station, which are in an upper-lower overlapped state, are formed between the upper heat sealing cutter assembly and the lower heat sealing cutter assembly, and the passing film is heat sealed;

the cutting knife device is used for cutting edges of the front side and the rear side of the bag body after heat sealing, and carrying out redundant material removing operation on the front side and the rear side of the bag body according to requirements;

the material cutting device can be adjusted to cut off and discharge the heat-sealed bag body;

and the discharging device is used for conveying and discharging the cut finished product.

Preferably, the feeding device comprises at least two groups of feeding film winding frame mechanisms, and comprises an upper film feeding group and a lower film feeding group, wherein the upper film feeding group and the lower film feeding group are arranged at the input end of the whole machine equipment, after feeding, the raw film of the upper film feeding group is conveyed through an upper film conveying route, the raw film of the lower film feeding group is conveyed through a lower film conveying route, a zipper is conveyed through a zipper conveying route, the upper film conveying route is arranged above the lower film conveying route, and the zipper conveying route is arranged between the upper film conveying route and the lower film conveying route and is close to the front side edge of the conveyed raw film.

Preferably, the number of the traction devices is multiple, and one traction device is arranged at the downstream of the merging station and the downstream of the partial heat sealing device.

Preferably, the punching device comprises an upper film pressing plate, a punching tool bit and an air suction channel, wherein the upper film pressing plate and the air suction channel are respectively arranged on the upper side and the lower side of an upper film conveying route, the upper film pressing plate and the punching tool bit are respectively driven by a pressing plate cylinder and a punching cylinder to lift, the middle part of the upper film pressing plate is provided with a channel for the punching tool bit to pass through, and the punching tool bit is in a zigzag shape.

Preferably, the welding valve device comprises a valve feeding mechanism, a valve conveying channel, a valve film pressing group and a valve jacking block, wherein the valve feeding mechanism comprises a valve feeding vibration disc and a feeding slideway, one end of the feeding slideway is connected with the valve feeding vibration disc, the other end of the feeding slideway is connected with the valve conveying channel, the valve conveying channel adopts a conveying belt mode, a valve at the tail end of the feeding slideway is conveyed to a welding position in the welding valve device, the valve film pressing group and the valve jacking block are respectively arranged on the upper side and the lower side of the welding position, an upper welding head is arranged in the center of the valve film pressing group, the valve jacking block is arranged below the upper welding head and opposite to the upper welding head, a jacking cylinder is arranged below the jacking block, a welding valve lifting cylinder for driving the film pressing group to lift is arranged above the pressing group, and a valve circumference fixing pressing block is arranged on the periphery of the upper welding head in the pressing group.

Preferably, the adjustable material cutting device comprises a base, a frame sliding along a base sliding rail arranged on the base, an adjustable cutter device arranged on the frame, a traction device and a chamfering device, wherein the chamfering device is arranged at the input end of the frame, the chamfering device is respectively arranged at the front side and the rear side of the raw material film and used for chamfering the raw material film after heat sealing, the traction device is arranged at the middle part of the frame and used for realizing traction work on the raw material film, and the adjustable cutter device is arranged at the outlet end of the frame and used for realizing cutting work on the raw material film.

As a further preferable mode, the rack is connected with the base sliding rail through a sliding block, a servo motor and an adjusting screw rod are further arranged in the rack, the adjusting screw rod is driven to rotate through the servo motor, and the rack is moved through sliding of the sliding block on the base sliding rail.

As a further preferred mode, the adjustable cutter device comprises a cutter assembly and a cutter seat adjusting assembly, the cutter seat adjusting assembly comprises a cutter seat and a cutter seat adjusting mechanism, the cutter seat is arranged above the frame, the cutter seat adjusting mechanism comprises a cutter seat sliding rail, a ball screw and an adjusting wheel, the cutter seat sliding rail and the ball screw are arranged along the conveying direction of the raw material film, the cutter seat sliding rail is arranged on the frame, the cutter seat is connected with the cutter seat sliding rail through a sliding block, the ball screw is arranged in the frame, the adjusting wheel is connected with the ball screw through a synchronous belt, a servo motor is further arranged in the frame, the servo motor drives the adjusting wheel to rotate, and the synchronous belt drives the ball screw to rotate, so that the cutter seat can move along the sliding of the cutter seat sliding rail through the sliding block; the cutter assembly comprises a cutter, a main rotating shaft, a connecting rod mechanism, a lifting rod and a pull-down air cylinder, wherein two ends of the cutter disc seat are provided with vertically arranged cutter sliding rails, the cutter is connected with sliding blocks on the cutter sliding rails through two ends of a cutter fixing shaft, the lower portion of the frame is provided with the main rotating shaft which is consistent with the setting direction of the cutter, a servo motor which drives the main rotating shaft to rotate is arranged in the frame, the output end of the servo motor is connected with the main rotating shaft through the connecting rod mechanism, the servo motor drives the main rotating shaft to rotate through the connecting rod mechanism, the end part of the main rotating shaft is provided with a short connecting rod, the upper end of the lifting rod is hinged with the end part of the cutter fixing shaft, the lower end of the lifting rod is hinged with the short connecting rod, the cylinder body of the pull-down air cylinder is hinged with the outside of the frame, and the output end of the pull-down air cylinder is hinged with the short connecting rod.

As still further preferable, the raw material film feeding roll frame mechanism further comprises a forked edge film feeding set, wherein the forked edge film feeding set is arranged on the rear side edge of the feeding device along the conveying direction of the raw material film, namely on the side opposite to the zipper feeding mechanism, and further comprises a triangular inclined folding frame, the conveying direction of the forked edge film is consistent with that of the upper film and the lower film after passing through the triangular inclined folding frame, and the forked edge film is arranged between the upper film and the lower film and is close to the rear side edge of the raw material film.

A bag making process of a vacuum compression bag making machine comprises the following steps:

A. feeding, namely dividing a raw material film packaged by a reel into an upper film and a lower film for conveying, conveying a zipper, wherein the upper film and the lower film are paved and conveyed, the zipper is positioned between the upper film and the lower film for conveying, and the zipper is close to the front side edge of the raw material film;

B. punching a hole and welding a valve, punching the upper film and welding a one-way ventilation valve;

C. merging, namely superposing the upper film, the zipper and the lower film together, and conveying the superposed films downstream;

D. a heat sealing knife extending along the conveying direction of the raw material film is adopted for heat sealing, the rear side edge of the upper film is in heat sealing with the rear side edge of the lower film, and the zipper is in heat sealing with the front side edges of the upper film and the lower film respectively;

E. longitudinal sealing and cooling, and cold pressing the part after the longitudinal sealing and ironing connection is finished again;

F. the transverse sealing and heat sealing are carried out by adopting a straight line ironing knife which is arranged from the front side of the raw material film to the rear side of the raw material film and is perpendicular to the conveying direction of the raw material, and the upper film, the zipper and the lower film are ironed at intervals to form a bag body;

G. cooling the transverse seal, and cold pressing the part of the transverse seal after the ironing connection is finished again;

H. the zipper ends are heat-sealed, and each interval of the zipper is heat-sealed to form reinforcement of the zipper end positions;

I. the zipper end is cooled, and the part of the zipper end after heat sealing is performed with cold pressing again;

J. cutting edges, namely cutting edges of the front side and the rear side of the bag body after heat sealing, and carrying out redundant material removing operation on the front side and the rear side of the bag body according to requirements;

K. chamfering, namely chamfering the front side and the rear side of the bag body at the center of the zipper end seal to form an arc-shaped notch; and L, cutting off, and cutting the bag body from the raw material by adopting a cutter to form an independent bag body.

Preferably, the cutter operation in step L is divided into two cutters, which are located on the upstream side and downstream side of the center line of the chamfer, respectively.

Preferably, in the step a, when the material is fed and includes a fork edge film, the fork edge film is located between the upper film and the lower film for conveying, and the fork edge film is close to the rear side edge of the raw material film and is opposite to the zipper;

in the step C, one side of the upper film is overlapped with the zipper and the lower film, and the other side of the upper film is overlapped with the edge-crossing film and the lower film and is overlapped together for downstream conveying;

in the step D, the upper edge and the lower edge of the forked edge film are respectively in hot joint with the rear side edge of the upper film and the rear side edge of the lower film;

and F, ironing and connecting the upper film, the zipper, the edge-forking film and the lower film at intervals to form a bag body.

The beneficial effects of the invention are as follows: the invention can realize full-automatic continuous operation, solves the problems that the production quality of the original vacuum compression bag cannot be guaranteed and the production efficiency is low, greatly improves the production efficiency, and has good processing consistency and high production quality. The utility model has the advantages of this application still can be according to the position that the direct regulation of the pocket type size of required production was cut off, need not to adjust the equipment position that violently seals and draw chain end to seal, reduced the time of production debugging, reduced workman's intensity of labour, improved production efficiency and realized, realized that a production assembly line can produce multiple product, the adaptability of production is high, has reduced manufacturing cost.

In the process of cutting the material, the adjustable material cutting device adopts the cutters at the upstream side and the downstream side of the center line of the chamfer, so that the situation that irregular burrs are left at the edge of the sealing bag due to the fact that the cutter cannot accurately and accurately locate the center line of the chamfer due to errors in the original cutting process is avoided. By adopting a servo system, a 1-cutter or 2-cutter can be selected when the material is cut off, so that the cutting of the printing lines between the bags is more coordinated.

When the punching and valve welding is carried out on the raw material film, the punching is carried out after the pressing by the upper film pressing plate, and the saw-tooth punching tool bit is adopted to ensure that the knife edge is neat during punching, burrs are avoided, the waste suction channel is sucked away after punching, and the subsequent valve welding processing is not influenced; and the valve periphery fixing block is adopted for pressing and then welding, so that the welding of the valve periphery is firm.

Besides producing the common plane zipper sealing bag with the valve, the invention can also be added with a group of edge-crossing film feeding groups for producing the upright bag.

In the power device, a servo motor is adopted, so that the raw material film walking, the cutter positioning and the cutter feeding position of the cutter are more accurate and the machining is smoother in the whole equipment operation process.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic structural view of the feeding device of the present invention.

Fig. 3 is a schematic structural view of the upper film punching and welding valve device of the invention.

Fig. 4 is a left side view of the punching device of the present invention.

Fig. 5 is a left side view of the welding valve device of the present invention.

Fig. 6 is a top view of the welding valve device of the present invention.

FIG. 7 is a schematic layout of the zipper end seal device of the present invention.

Fig. 8 is a schematic structural view of an adjustable blanking device of the present invention.

Fig. 9 is a left side view of the adjustable blanking device of the present invention.

Fig. 10 is a schematic view of the position structure of the chamfering and cutting process in the production process of the present invention.

Fig. 11 is a schematic structural view of embodiment 2 of the present invention.

Fig. 12 is a schematic structural view of a feeding device of embodiment 2 of the present invention.

Fig. 13 is a side view of the edge-crossing film feed set of example 2 of the present invention.

Fig. 14 is a schematic structural view of a slide fastener feeding mechanism according to embodiment 2 of the present invention.

FIG. 15 is a schematic view showing the structure of a sealed pouch with a slit edge film produced in example 2 of the present invention.

FIG. 16 is a cross-sectional view of a sealed pouch with a gusseted film produced in example 2 of the present invention.

Description of the reference numerals:

1: a feeding device; 2: a film-feeding punching and valve-welding device; 3: a converging station; 4: a pulling device; 5: a longitudinal sealing heat sealing mechanism; 6: a longitudinal seal cooling mechanism; 7: a transverse sealing heat sealing mechanism; 8: a transverse seal cooling mechanism; 9: a chain end heat sealing mechanism; 10: a link end cooling mechanism; 11: a cutter device; 12: an adjustable blanking device; 13: a discharging device; 14: a raw material film feeding and winding frame mechanism; 15: an adjusting device; 16: slide fastener: 17: a film feeding conveying route; 18: a zipper transfer path; 19; a zipper feeding mechanism; 20: a lower film conveying route; 30: longitudinally sealing; 31: transverse sealing; 32: chamfering; 33: a center line; 34: a downstream side; 35: an upstream side; 36: coating a film; 37: a lower film; 38: forking edge films;

141: a film feeding group; 142 lower film feed group; 143: a forked edge film feeding group; 1431: the triangle is inclined to the folding frame;

211: punching air cylinders; 212: punching tool bit; 213: a film pressing plate; 214: an air suction channel; 215: a pressure plate cylinder;

221: a pressing block is fixed at the periphery of the valve; 222: a welding valve lifting cylinder; 223: a welding head is arranged; 224: a valve; 225: a valve lifting block; 226: jacking the air cylinder; 227: a valve delivery passage; 228: a feed slide; 229: welding positions; 2210: a valve feeding vibration disc;

121: a servo motor; 122: a base; 123: a base slide rail; 124: adjusting a screw rod; 125: a frame; 126: chamfering device; 127: a cutter slide rail; 128: a lifting rod; 129: a cutterhead seat; 1210: a cutter head seat slide rail; 1211: a ball screw; 1212: a main rotating shaft; 1213: a link mechanism; 1214: a pull-down cylinder; 1215: a cutter fixing shaft; 1216: a cutter; 1217: a raw material film; 1218: a synchronous belt; 1219: a short connecting rod; 1220: and an adjusting wheel.

Detailed Description

The invention will be further described with reference to the accompanying drawings and examples.

Example 1

As shown in fig. 1 to 10, a vacuum compression bag machine includes:

the feeding device 1 comprises a plurality of raw material film winding frame mechanisms 14 and a zipper feeding mechanism 19;

an adjusting device 15 including a plurality of adjusting arm mechanisms for receiving the raw material film 1217 and the slide fastener 16 of the feeding device 1 and performing tension adjustment of the raw material film 1217 and the slide fastener 16;

a distributing device including a plurality of distributing guide rollers for receiving the raw material film 1217 and the slide fastener 16 on the regulating device 15 and grouping and conveying the raw material film 1217 and the slide fastener 16 to form an upper film conveying path 17, a slide fastener conveying path 18, and a lower film conveying path 20;

an upper film punching and valve welding device 2 for receiving the upper film 36 conveyed by the material distributing device, punching the upper film 36 and welding a valve 224 (one-way ventilation valve), comprising a punching device and a valve welding device;

a converging station 3, the converging station 3 is provided with converging rollers for receiving the upper film 36 conveyed by the upper film conveying route 17, the zipper 16 conveyed by the zipper conveying route 18, and the lower film 37 conveyed by the lower film conveying route 20, and making the upper film 36, the zipper 16 and the lower film 37;

the pulling device 4 comprises two pulling rollers, a pulling channel is formed between the two pulling rollers, the stacked films are clamped from the upper side and the lower side, and the films are pulled to move forwards together;

the heat sealing device comprises a transverse sealing device, a longitudinal sealing device and a zipper end sealing device, wherein the transverse sealing device comprises a transverse sealing heat sealing mechanism 7 and a transverse sealing cooling mechanism 8, the longitudinal sealing device comprises a longitudinal sealing heat sealing mechanism 5 and a longitudinal sealing cooling mechanism 6, the zipper end sealing device comprises a zipper end heat sealing mechanism 9 and a zipper end cooling mechanism 10, the transverse sealing heat sealing mechanism 7, the longitudinal sealing heat sealing mechanism 5 and the zipper end heat sealing mechanism 9 comprise an upper heat sealing cutter assembly and a lower heat sealing cutter assembly, an upper film 36, a zipper 16 and a heat sealing station, which are in an upper-lower overlapped state, are formed between the upper heat sealing cutter assembly and the lower heat sealing cutter assembly, and the passing film is subjected to heat sealing;

the cutting knife device 11 is used for cutting edges of the front side and the rear side of the bag body after heat sealing, and carrying out redundant material removing operation on the front side and the rear side of the bag body according to requirements; in practical use, if special positioning is needed, if the cutting is performed according to the patterns on the raw material film 1217, a camera can be installed on the cutter device 11, and the cutter senses the patterns on the bag body for positioning work while performing edge cutting actions on the front edge and the rear edge of the bag body;

the material cutting device 12 can be adjusted to cut off and feed the heat-sealed bag body;

and the discharging device 13 is used for conveying and discharging the cut finished product.

As shown in fig. 2, in this embodiment, the feeding device 1 includes at least two sets of feeding film winding frame mechanisms 14, including an upper film feeding set 141 and a lower film feeding set 142, where the upper film feeding set 141 and the lower film feeding set 142 are disposed at the input end of the whole machine, and after feeding, the raw film 1217 of the upper film feeding set 141 is conveyed by an upper film conveying line 17, the raw film 1217 of the lower film feeding set 142 is conveyed by a lower film conveying line 20, and the zipper 16 is conveyed by a zipper conveying line 18, where the upper film conveying line 17 is disposed above the lower film conveying line 20, and the zipper conveying line 18 is disposed between the upper film conveying line 17 and the lower film conveying line 20 and near the front edge of the conveyed raw film 1217. The specific structure of the raw material film feeding reel mechanism 14 and the zipper feeding mechanism 19 is the prior art, and will not be described here.

In this embodiment, there are a plurality of pulling devices 4, and one pulling device 4 is disposed downstream of the merging station 3 and downstream of the partial heat sealing device.

As shown in fig. 3 and 4, in this embodiment, the punching device includes an upper film pressing plate 213, a punching tool bit 212, and an air suction channel 214, where the upper film pressing plate 213 and the air suction channel 214 are respectively disposed on the upper and lower sides of the upper film conveying path 17, the upper film pressing plate 213 and the punching tool bit 212 are respectively driven by a pressing plate cylinder 215 and a punching cylinder 211 to lift, a channel through which the punching tool bit 212 passes is disposed in the middle of the upper film pressing plate 213, and the punching tool bit 212 is in a zigzag shape. The aperture can be replaced and adjusted according to actual production requirements. The pressing plate cylinder 215 drives the upper film pressing plate 213 to be close to the air suction channel 214, the upper film in the upper film conveying route 17 is pressed and fixed, the punching cylinder 211 drives the punching tool bit 212 to descend, the punching tool bit 212 penetrates through the channel of the upper film pressing plate 213, the upper film is punched, the air suction channel 214 below the upper film sucks away crushed aggregates of the punched raw film 1217, and after punching is completed, the punching cylinder 211 and the pressing plate cylinder 215 are reset.

As shown in fig. 3, 5 and 6, in this embodiment, the welding valve device includes a valve feeding mechanism, a valve conveying channel 227, a valve pressing film group and a valve jacking block 225, the valve feeding mechanism includes a valve feeding vibration disc 2210 and a feeding slideway 228, one end of the feeding slideway 228 is connected with the valve feeding vibration disc 2210, the other end of the feeding slideway 228 is connected with the valve conveying channel 227, the valve conveying channel 227 adopts a conveyor belt form to convey a valve 224 at the tail end of the feeding slideway 228 to a welding position 229 in the welding valve device, the valve 224 pressing film group and the valve jacking block 225 are respectively arranged at the upper side and the lower side of the welding position 229, an upper welding head 223 is arranged in the center of the valve 224 pressing film group, the valve jacking block 225 is arranged below the upper welding head 223 and opposite to the upper welding head 223, a jacking cylinder is arranged below the jacking block, a driving valve pressing film group lifting cylinder 222 is arranged above the pressing film group, and a valve circumference fixing pressing block 221 is arranged around the upper welding head 223 in the pressing film group. The valves 224 are conveyed to the welding positions 229 one by one through the valve feeding mechanism and are positioned at the punched holes on the upper film, the welding valve lifting cylinder 222 drives the film pressing group to descend, the valve periphery fixing pressing block 221 presses the raw material film 1217, the upper film and the valves 224 are prevented from being displaced, the lifting cylinder drives the lifting block to push the valves 224 to ascend, and the upper welding head 223 is heated to weld the upper film and the valves 224. After the welding is completed, the jacking cylinder and the welding valve lifting cylinder 222 are reset. Two material blocking rods can be arranged in the valve conveying channel 227 to cooperate with material blocking cylinders, so that the function of conveying the valves 224 one by one in the valve conveying channel 227 can be realized.

As shown in fig. 8 and 9, in this embodiment, the adjustable material breaking device 12 includes a base 122, a frame 125 sliding along a base sliding rail 123 provided on the base 122, an adjustable cutter device provided on the frame 125, a pulling device 4, and a chamfering device 126, where the chamfering device 126 is provided at an input end of the frame 125, and the chamfering device 126 is respectively provided at front and rear sides of the raw material film 1217, for chamfering 32 the raw material film 1217 after heat sealing, the position of the chamfering 32 is shown in fig. 10, the pulling device 4 is provided at a middle part of the frame 125, so as to implement pulling work on the raw material film 1217, and the adjustable cutter device is provided at an outlet end of the frame 125, so as to implement cutting work on the raw material film 1217.

In this embodiment, the rack 125 is connected to the base slide rail 123 through a sliding block, a servo motor 121 and an adjusting screw 124 are further disposed in the rack 125, and the adjusting screw 124 is driven to rotate by the servo motor 121, so that the rack 125 can slide on the base slide rail 123 through the sliding block to realize movement.

In this embodiment, the adjustable cutter device includes a cutter assembly and a cutter seat adjusting assembly, the cutter seat adjusting assembly includes a cutter seat 129 and a cutter seat adjusting mechanism, the cutter seat 129 is disposed above the frame 125, the cutter seat adjusting mechanism includes a cutter seat slide rail 1210, a ball screw 1211 and an adjusting wheel 1220, the cutter seat slide rail 1210 and the ball screw 1211 are disposed along a conveying direction of the raw material film 1217, the cutter seat slide rail 1210 is disposed above the frame 125, the cutter seat 129 is connected with the cutter seat slide rail 1210 through a slider, the ball screw 1211 is disposed in the frame 125, the adjusting wheel 1220 is connected with the ball screw 1211 through a synchronous belt 1218, a servo motor 121 is disposed in the frame 125, the adjusting wheel 1220 is driven to rotate by the servo motor 121, and the ball screw 1211 is driven to rotate by the synchronous belt 1218, so that the cutter seat 129 can move along the sliding of the cutter seat slide rail 1210 through the slider. The cutter 1216 assembly comprises a cutter 1216, a main rotating shaft 1212, a connecting rod mechanism 1213, a lifting rod 128 and a pull-down cylinder 1214, wherein two ends of the cutter head seat 129 are provided with vertically arranged cutter slide rails 127, the cutter 1216 is connected with a slide block on the cutter slide rails 127 through two ends of a cutter fixing shaft 1215, the lower part of the stand 125 is provided with the main rotating shaft 1212 in the same direction as the arrangement direction of the cutter 1216, a servo motor 121 for driving the main rotating shaft 1212 to rotate is arranged in the stand 125, the output end of the servo motor 121 is connected with the main rotating shaft 1212 through the connecting rod mechanism 1213, the main rotating shaft 1212 is driven to rotate by the rotation of the servo motor 121 through the connecting rod mechanism 1213, the end part of the main rotating shaft 1212 is provided with a short connecting rod 1219, the upper end of the lifting rod 128 is hinged with the end part of the cutter fixing shaft 1215, the lower end of the lifting rod is hinged with the short connecting rod 1219, the cylinder body of the pull-down cylinder 1214 is hinged with the outside of the stand 125, and the output end of the pull-down cylinder 1214 is hinged with the short connecting rod 1219; when the main rotating shaft 1212 rotates, the short connecting rod 1219 is driven to drive the lifting rod 128 to drive the cutter fixing shaft 1215 to move upwards along the cutter sliding rail 127 through the sliding block, and the output end of the pull-down cylinder 1214 extends to realize the lifting action of the cutter 1216; when the pull-down cylinder 1214 is contracted, the short connecting rod 1219 is driven to rotate along the main rotating shaft 1212, meanwhile, the pull-up rod 128 is driven to pull downwards, the cutter fixing shaft 1215 is driven to move downwards along the cutter sliding rail 127 through the sliding block, and the action that the cutter 1216 cuts off the raw material film 1217 is realized. The reason why the pull-down cylinder 1214 is provided is that the main rotation shaft 1212 rotates to drive the pull-up rod 128 to drive the cutter fixing shaft 1215 to move upward along the cutter slide rail 127 through the slider, but the pull-up rod 128 does not have enough force to pull down and reset the cutter fixing shaft 1215, so that it is necessary to provide a pull-down cylinder 1214 to pull down the cutter fixing shaft 1215 in cooperation with the pull-up rod 128 to exert a downward pulling force, thereby achieving the cutting action.

A. feeding, namely dividing a roll raw material film 1217 into an upper film 36 and a lower film 37 for conveying, conveying a zipper 16, wherein the upper film 36 and the lower film 37 are flatly conveyed, the zipper 16 is positioned between the upper film 36 and the lower film 37 for conveying, and the zipper 16 is close to the front side edge along the raw material film 1217;

B. punching a hole and welding a valve, punching the upper film 36 and welding a one-way ventilation valve;

C. joining, namely, superposing the upper film 36, the zipper 16 and the lower film 37 together, and conveying the materials downstream;

D. a longitudinal heat seal is performed, wherein a heat seal knife extending along the conveying direction of the raw material film 1217 is adopted to thermally bond the rear side edge of the upper film 36 and the rear side edge of the lower film 36, and the zipper 16 is thermally bonded with the front side edges of the upper film 36 and the lower film 37 respectively;

E. longitudinal sealing and cooling, and cold pressing the part after the longitudinal sealing and ironing connection is finished again; this forms a sealed edge of the front and rear edges of the vacuum sealed bag;

F. heat-sealing the transverse seal, wherein the upper film 36, the zipper 16 and the lower film 37 are heat-sealed at intervals to form a bag body by using a straight ironing knife arranged from the front side of the raw material film 1217 to the rear side of the raw material film 1217 in a manner perpendicular to the raw material conveying direction;

G. cooling the transverse seal, and cold pressing the part of the transverse seal after the ironing connection is finished again; this forms a sealed edge of the left and right edges of the vacuum sealed bag;

H. the zipper ends are heat sealed, and the zipper 16 is heat sealed at intervals to form reinforcement of the positions of the zipper 16 ends;

I. the zipper end is cooled, and the part of the zipper 16 end after the heat sealing is finished is subjected to cold pressing again; this completes the spot-sealing reinforcement work of the end of the slide fastener 16;

K. chamfering 32, wherein the front side and the rear side of the bag body are positioned at the center of the end seal of the zipper 16 to chamfer 32, so as to form a circular arc notch;

l, cutting off, and cutting off the bag body from the raw material by adopting a cutter 1216 to form an independent bag body.

In this embodiment, the operation of the cutter 1216 in step L is divided into two cutters, which are located on the upstream side 35 and the downstream side 34 of the centerline 33 of the chamfer 32, respectively. As shown in fig. 10. Firstly, a knife is cut on the downstream side 34 of the central line 33, then the servo motor 121 drives the regulating wheel 1220 to rotate, and the synchronous belt 1218 drives the ball screw 1211 to rotate, so that the cutter head seat 129 moves the cutter 1216 to the upstream side 35 of the central line 33 through the upstream movement of the sliding block along the cutter head seat sliding rail 1210 towards the rack 125, and then the knife is cut, thereby ensuring that the four corners of the cut bag body are all arc-shaped transition, and avoiding the situation that irregular burrs are left on the edge of the sealed bag due to the fact that the cutter 1216 is not cut on the central line 33 of the chamfer 32. The cutter disc seat adjusting mechanism adopts a servo system, and can select to cut 1 knife or 2 knives when the material is broken, so that the cutting of the printing lines between the bags is more coordinated. The case of slitting into 2 knives is applicable to a bag body in which the ends need to be chamfered, as in the case of slitting into one knife each on the upstream side 35 and the downstream side 34 of the center line 33.

When the cutting is 1 sword, for a sword disconnected material, the cutter position is the position of central line 33, and this kind of structure is applicable to the bag body that need not the chamfer.

Example 2

In this embodiment, the following technical features are provided in addition to the same points as those in embodiment 1:

as shown in fig. 12-14, the film roll frame mechanism 14 further includes a feeding group 143 for a fork edge film, the feeding group 143 for a fork edge film is disposed at a rear side of the feeding device 1 along the feeding direction of the film 1217, that is, at a side opposite to the zipper feeding mechanism, the feeding group 143 for a fork edge film further includes a triangular inclined folding frame 1431, the feeding direction of the fork edge film 38 is consistent with the feeding direction of the upper film 36 and the lower film 37 after passing through the triangular inclined folding frame 1431, and the fork edge film 38 is disposed between the upper film 36 and the lower film 37 and is close to the rear side of the film. The structure can be used for realizing the effect of forming a standing bag by additionally arranging the forked edge film on one side on the basis of the original rectangular sealing bag and opening the forked edge film after the bag is filled with objects. Fig. 15-16 are schematic views of the relevant structure of a sealed bag containing a gusseted film.

In the bag making process of the vacuum compression bag making machine, the technical characteristics are as follows except the points same as the embodiment:

in step a, when the fork edge film 38 is included in the feeding process, the fork edge film 38 is positioned between the upper film 36 and the lower film 37 for conveyance, and the fork edge film 38 is positioned close to the rear side edge of the raw material film 1217, opposite to the position of the slide fastener 16; an intermediate layer between the upper film 36 and the lower film 17 is realized, one side carrying the slide fastener 16 and one side carrying the edge-crossing film 38;

in the step C, one side of the upper film 36 is overlapped with the zipper 16 and the lower film 37, and the other side of the upper film 36 is overlapped with the edge-crossing film 38 and the lower film 37 and is overlapped together for downstream conveying;

in the step D, the upper and lower edges of the forked edge film 38 are respectively in hot joint with the rear side edge of the upper film 36 and the rear side edge of the lower film 37;

in step F, the upper film 36, the zipper 16, the flange 38 and the lower film 37 are heat-bonded at a distance to form a bag. In the ironing process, transverse sealing heat sealing and transverse sealing cooling can be performed firstly, then zipper end heat sealing and zipper end cooling can be performed, or transverse sealing heat sealing, zipper end heat sealing and zipper end cooling can be performed firstly, the sequence of the transverse sealing device and the zipper end sealing device is incompletely fixed, the sequence can be adjusted according to actual conditions, but the procedures of transverse sealing and zipper end sealing can be performed after longitudinal sealing heat sealing and longitudinal sealing cooling are performed generally.

In the description of the present specification, it should be understood that the terms "upper", "lower", "upstream", "downstream", "front", "rear", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless explicitly specified and limited otherwise, the term "connected" and the like should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims

1. A vacuum compression bag machine, comprising:

a feeding device (1) comprising a plurality of raw material film winding frame mechanisms (14) and a zipper feeding mechanism (19);

an adjusting device (15) including a plurality of adjusting arm mechanisms for receiving the raw material film (1217) and the slide fastener (16) of the feeding device (1) and performing tension adjustment of the raw material film (1217) and the slide fastener (16);

a distributing device comprising a plurality of distributing guide rollers for receiving the raw material film (1217) and the zipper (16) on the adjusting device (15) and grouping and conveying the raw material film (1217) and the zipper (16) to form an upper film conveying route (17), a zipper conveying route (18) and a lower film conveying route (20);

the upper film punching and valve welding device (2) is used for receiving the upper film conveyed by the material distributing device, punching the upper film and welding a valve (224), and comprises a punching device and a valve welding device;

the converging station (3), there are gathering rolls on the converging station (3), is used for receiving the upper membrane that the upper membrane conveys the route (17), zipper (16) that the zipper conveys the route (18), lower membrane that the lower membrane conveys the route (20), and make upper membrane, zipper (16) and lower membrane coincide;

the traction device (4) comprises two traction rollers, a traction channel is formed between the two traction rollers, the stacked films are clamped from the upper side and the lower side, and the films are pulled to move forwards together;

the heat sealing device comprises a transverse sealing device, a longitudinal sealing device and a zipper end sealing device, wherein the transverse sealing device comprises a transverse sealing heat sealing mechanism (7) and a transverse sealing cooling mechanism (8), the longitudinal sealing device comprises a longitudinal sealing heat sealing mechanism (5) and a longitudinal sealing cooling mechanism (6), the zipper end sealing device comprises a zipper end heat sealing mechanism (9) and a zipper end cooling mechanism (10), the transverse sealing heat sealing mechanism (7), the longitudinal sealing heat sealing mechanism (5) and the zipper end heat sealing mechanism (9) all comprise an upper heat sealing knife assembly and a lower heat sealing knife assembly, an upper film (36), a zipper (16) and a lower film (37) which are in an upper-lower overlapped state are formed between the upper heat sealing knife assembly and the lower heat sealing knife assembly, and heat sealing is carried out on the passing films;

the cutting knife device (11) is used for cutting edges of the front side and the rear side of the bag body after heat sealing, and carrying out redundant material removing operation on the front side and the rear side of the bag body according to requirements;

an adjustable material cutting device (12) is used for cutting off and blanking the heat-sealed bag body;

and the discharging device (13) is used for conveying and discharging the cut finished product.

2. The vacuum compression bag making machine according to claim 1, wherein the feeding device (1) comprises at least two groups of feeding film winding frame mechanisms (14), including an upper film feeding group (141) and a lower film feeding group (142), the upper film feeding group (141) and the lower film feeding group (142) are arranged at the input end of the whole machine equipment, after feeding, the raw film (1217) of the upper film feeding group (141) is conveyed by an upper film conveying route (17), the raw film (1217) of the lower film feeding group (142) is conveyed by a lower film conveying route (20), the zipper (16) is conveyed by a zipper conveying route (18), the upper film conveying route (17) is arranged above the lower film conveying route (20), and the zipper conveying route (18) is arranged between the upper film conveying route (17) and the lower film conveying route (20) and is close to the front side edge of the conveyed raw film (1217).

3. A vacuum compression bag machine according to claim 1, characterized in that the number of said pulling means (4) is plural, and that one pulling means (4) is provided downstream of the merging station (3) and downstream of the partial heat sealing means.

4. The vacuum compression bag making machine according to claim 1, characterized in that the punching device comprises an upper film pressing plate (213), a punching tool bit (212) and an air suction channel (214), wherein the upper film pressing plate (213) and the air suction channel (214) are respectively arranged on the upper side and the lower side of the upper film conveying route (17), the upper film pressing plate (213) and the punching tool bit (212) are respectively driven by a pressing plate cylinder (215) and a punching cylinder (211) to lift, the middle part of the upper film pressing plate (213) is provided with a channel for the punching tool bit (212) to pass through, and the punching tool bit (212) is in a zigzag shape.

5. The vacuum compression bag making machine according to claim 1, characterized in that the valve welding device comprises a valve feeding mechanism, a valve conveying channel (227), a valve pressing film group and a valve jacking block (225), the valve feeding mechanism comprises a valve feeding vibration disc (2210) and a feeding slideway (228), one end of the feeding slideway (228) is connected with the valve feeding vibration disc (2210) while the other end is connected with the valve conveying channel (227), the valve conveying channel (227) adopts a conveying belt mode, a valve (224) at the tail end of the feeding slideway (228) is conveyed to a welding position (229) in the valve welding device, the valve pressing film group and the valve jacking block (225) are respectively arranged on the upper side and the lower side of the welding position (229), an upper welding head (223) is arranged at the center of the valve pressing film group, the valve jacking block (225) is arranged below the upper welding head (223) and opposite to the upper welding head (223), a jacking cylinder (226) is arranged below the jacking block, a valve (224) at the tail end of the feeding slideway (228) is conveyed to the welding position (229), and a pressing film pressing block (221) is arranged around the valve pressing film group is arranged in the welding position, and the pressing block (221) is arranged around the welding position.

6. The vacuum compression bag making machine according to claim 1, wherein the adjustable material breaking device (12) comprises a base (122), a frame (125) sliding along a base sliding rail (123) arranged on the base (122), an adjustable cutter device, a traction device (4) and a chamfering device (126) arranged on the frame (125), wherein the chamfering device (126) is arranged at the input end of the frame (125), the chamfering device (126) is respectively arranged at the front side and the rear side of the raw material film (1217) for chamfering (32) the raw material film (1217) after heat sealing, the traction device (4) is arranged in the middle of the frame (125) for realizing traction work of the raw material film (1217), and the adjustable cutter device is arranged at the outlet end of the frame (125) for realizing cutting work of the raw material film (1217); the machine frame (125) is connected with the base sliding rail (123) through a sliding block, a servo motor (121) and an adjusting screw rod (124) are further arranged in the machine frame (125), the adjusting screw rod (124) is driven to rotate through the servo motor (121), and the machine frame (125) is moved through sliding of the sliding block on the base sliding rail (123).

7. The vacuum compression bag making machine according to claim 6, wherein the adjustable cutter device comprises a cutter assembly and a cutter seat adjusting assembly, the cutter seat adjusting assembly comprises a cutter seat (129) and a cutter seat adjusting mechanism, the cutter seat (129) is arranged above the frame (125), the cutter seat adjusting mechanism comprises a cutter seat sliding rail (1210), a ball screw (1211) and an adjusting wheel (1220), the cutter seat sliding rail (1210) and the ball screw (1211) are arranged along the conveying direction of a raw material film (1217), the cutter seat sliding rail (1210) is arranged above the frame (125), the cutter seat (129) is connected with the cutter seat sliding rail (1210) through a sliding block, the ball screw (1211) is arranged in the frame (125), the adjusting wheel (1220) is connected with the ball screw (1211) through a synchronous belt (1218), the servo motor (121) is further arranged in the frame (125), and the servo motor (1220) is driven to rotate, and the synchronous belt (1211) drives the ball screw (1211) to move along the sliding rail (1210) through the sliding block; the cutter assembly comprises a cutter (1216), a main rotating shaft (1212), a connecting rod mechanism (1213), a lifting rod (128) and a pull-down cylinder (1214), wherein two ends of the cutter head seat (129) are provided with vertically arranged cutter sliding rails (127), the cutter (1216) is connected with sliding blocks on the cutter sliding rails (127) through two ends of a cutter fixing shaft (1215), the lower part of the frame (125) is provided with the main rotating shaft (1212) which is consistent with the arrangement direction of the cutter (1216), the frame (125) is internally provided with a servo motor (121) for driving the main rotating shaft (1212) to rotate, the output end of the servo motor (121) is connected with the main rotating shaft (1212) through the connecting rod mechanism (1213), the end of the main rotating shaft (1212) is provided with a short connecting rod (1219), the upper end of the lifting rod (128) is hinged with the end of the cutter fixing shaft (1215), the lower end of the lifting rod (128) is hinged with the short connecting rod (1219), and the output end of the pull-down cylinder (1214) is hinged with the outside of the frame (1219).

8. A vacuum compression bag machine according to claim 2, wherein the stock film rolling frame mechanism (14) further comprises a fork edge film feeding group (143), the fork edge film feeding group (143) is arranged at the rear side edge of the feeding device (1) along the conveying direction of the stock film (1217), namely at the side opposite to the zipper feeding mechanism, the fork edge film feeding group (143) further comprises a triangle inclined folding frame (1431), the conveying direction of the fork edge film (38) is consistent with the upper film (36) and the lower film (37) after passing through the triangle inclined folding frame (1431), and the fork edge film (38) is arranged between the upper film (36) and the lower film (37) and is close to the rear side edge of the stock film.

9. A bag making process of a vacuum compression bag making machine according to claims 1-8, characterized by comprising the steps of:

A. feeding, namely dividing a roll raw material film (1217) into an upper film (36) and a lower film (37) for conveying, conveying a zipper (16), wherein the upper film (36) and the lower film (37) are horizontally conveyed, the zipper (16) is positioned between the upper film (36) and the lower film (37) for conveying, and the zipper (16) is close to the front side edge along the raw material film (1217);

B. punching a hole and welding a valve, punching an upper film (36) and welding a one-way ventilation valve;

C. joining, namely superposing an upper film (36), a zipper (16) and a lower film (37) together, and conveying the superposed films downstream;

D. a longitudinal sealing heat seal is carried out, a heat sealing knife extending along the conveying direction of the raw material film (1217) is adopted to thermally connect the rear side edge of the upper film (36) and the rear side edge of the lower film (37), and the zipper (16) is thermally connected with the front side edges of the upper film (36) and the lower film (37) respectively;

E. longitudinal sealing and cooling, and cold pressing the part of the longitudinal sealing (30) after the ironing connection is finished again;

F. heat-sealing the transverse seal, wherein a straight ironing knife which is arranged from the front side of the raw material film (1217) to the rear side of the raw material film (1217) and extends to the front side of the raw material film (1217) is adopted, and the upper film (36), the zipper (16) and the lower film (37) are in ironing connection at a certain distance to form a bag body;

G. cooling the transverse seal, and cold-pressing the part of the transverse seal (31) after the ironing connection is finished again;

H. the zipper ends are heat-sealed, and the zipper (16) is heat-sealed at intervals to form reinforcement of the positions of the zipper (16) ends;

I. the zipper end is cooled, and the part of the zipper (16) end after heat sealing is completed is subjected to cold pressing again;

K. chamfer angles (32), chamfer angles (32) are arranged at the center of the end seal of the zipper (16) at the front side and the rear side of the bag body,

forming a circular arc-shaped notch;

and L, cutting off, and cutting the bag body from the raw material by adopting a cutter (1216) to form an independent bag body.

10. A process for making bags according to claim 9, wherein the operation of the cutter (1216) in step L is divided into two cutters, which are located on the upstream side (35) and the downstream side (34) of the center line (33) of the chamfer (32), respectively.

11. The bag making process of the vacuum compression bag making machine according to claim 9, wherein:

in the step A, when the material is fed and comprises a fork edge film (38), the fork edge film (38) is positioned between the upper film (36) and the lower film (37) for conveying, and the fork edge film (38) is close to the rear side edge of the raw material film (1217) and is opposite to the zipper (16);

in the step C, one side of the upper film (36) is overlapped with the zipper (16) and the lower film (37), the other side of the upper film (36) is overlapped with the forked edge film (38) and the lower film (37), and the overlapped films are conveyed downstream;

in the step D, the upper edge and the lower edge of the edge-crossing film (38) are respectively in hot joint with the rear side edge of the upper film (36) and the rear side edge of the lower film (37);

in the step F, the upper film (36), the zipper (16), the edge-crossing film (38) and the lower film (37) are ironed at a certain distance to form a bag body.