CN114670497A - Multi-seal fork edge bag making machine and bag making process - Google Patents

Multi-seal fork edge bag making machine and bag making process Download PDF

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Publication number
CN114670497A
CN114670497A CN202210358143.4A CN202210358143A CN114670497A CN 114670497 A CN114670497 A CN 114670497A CN 202210358143 A CN202210358143 A CN 202210358143A CN 114670497 A CN114670497 A CN 114670497A
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China
Prior art keywords
film
edge
sealing
feeding
bottleneck
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Pending
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CN202210358143.4A
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Chinese (zh)
Inventor
徐晓明
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Zhejiang Mingli Machinery Technology Co ltd
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Zhejiang Mingli Machinery Technology Co ltd
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Priority to CN202210358143.4A priority Critical patent/CN114670497A/en
Publication of CN114670497A publication Critical patent/CN114670497A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/60—Uniting opposed surfaces or edges; Taping
    • B31B70/64—Uniting opposed surfaces or edges; Taping by applying heat or pressure
    • B31B70/644—Making seals parallel to the direction of movement, i.e. longitudinal sealing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/006—Controlling; Regulating; Measuring; Safety measures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/02—Feeding or positioning sheets, blanks or webs
    • B31B70/10—Feeding or positioning webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/14—Cutting, e.g. perforating, punching, slitting or trimming
    • B31B70/16—Cutting webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/14—Cutting, e.g. perforating, punching, slitting or trimming
    • B31B70/20—Cutting sheets or blanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/60—Uniting opposed surfaces or edges; Taping
    • B31B70/64—Uniting opposed surfaces or edges; Taping by applying heat or pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/60—Uniting opposed surfaces or edges; Taping
    • B31B70/64—Uniting opposed surfaces or edges; Taping by applying heat or pressure
    • B31B70/645—Making seals transversally to the direction of movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/74—Auxiliary operations
    • B31B70/76—Moistening; Drying; Cooling; Heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/74—Auxiliary operations
    • B31B70/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings
    • B31B70/84—Forming or attaching means for filling or dispensing contents, e.g. valves or spouts
    • B31B70/844—Applying rigid valves, spouts, or filling tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2155/00—Flexible containers made from webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00—Shape of flexible containers
    • B31B2160/20—Shape of flexible containers with structural provision for thickness of contents

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Abstract

The invention discloses a multi-seal fork edge bag making machine and a bag making process, wherein the multi-seal fork edge bag making machine comprises: the device comprises a feeding device, an adjusting device, a distributing device, a valve adding device, a converging station, a traction device, a heat sealing device and a material cutting device. The processing steps of the multi-seal fork edge bag making process comprise: feeding, adding a valve, longitudinally sealing, cooling, thermally sealing an upper bottleneck extension section, thermally sealing an upper bottleneck, thermally sealing a lower bottleneck extension section, thermally sealing a V shape, horizontally sealing, cooling and cutting off. The full-automatic bag edge sealing machine can realize full-automatic streamlined operation, solves the problems that the original multi-fork edge sealing bag can only be processed manually, the production quality cannot be guaranteed, and the production efficiency is low, greatly improves the production efficiency, and has good product processing consistency and high production quality.

Description

Multi-seal fork edge bag making machine and bag making process
Technical Field
The invention relates to the field of bag making, in particular to a multi-seal fork edge bag making machine and a bag making process.
Background
The existing bag making process, especially the chemical industry, needs packaging bags with various specifications. With the rise of new energy industry, the demand of the ton bag is increasing, and the ton bag is used for containing new energy powder or particles, but the processing of the ton bag is not more excellent. The existing ton bag is generally fed by four films, and is heat-sealed after being stacked, and finally cut and discharged. However, in the existing processing process, the manual hot-pressing connection is realized in one step by manpower, and due to the full manual operation, the quality of the product cannot be guaranteed, the consistency of the product is poor, the production efficiency is extremely low, and the production cost is very high. There continues to be a development of automated bag making apparatus and methods.
Disclosure of Invention
In order to solve the problems, the invention provides a multi-seal fork edge bag making machine and a bag making process.
The technical scheme of the invention is that the bag making machine with multiple sealing fork edges comprises:
the feeding device comprises a plurality of raw material supply roll frame mechanisms;
the adjusting device comprises a plurality of adjusting arm mechanisms which are used for receiving the raw materials of the feeding device and adjusting the tension of the raw materials;
the material distributing device comprises a plurality of material distributing guide rollers for receiving the raw materials on the adjusting device, conveying the raw materials in groups and forming an upper film conveying route and a lower film conveying route;
the valve adding device is used for receiving the upper membrane conveyed by the material distributing device and comprises a valve conveying device and a puncture welding device which puncture the upper membrane and weld the valve body;
the converging station is provided with a converging roller and is used for receiving the upper film conveyed by the upper film conveying line and the fork edge film and the lower film conveyed by the lower film conveying line and superposing the upper film, the fork edge film and the lower film up and down;
the drawing device comprises two drawing rollers, a drawing channel is formed between the two drawing rollers, and the two drawing rollers clamp the stacked membrane from the upper side and the lower side and draw the membrane to move forwards;
the heat sealing device comprises a transverse sealing mechanism, a longitudinal sealing mechanism, a bottleneck opening heat sealing mechanism, a bottleneck opening extension section heat sealing mechanism and a V-shaped heat sealing mechanism, wherein the transverse sealing mechanism, the longitudinal sealing mechanism, the bottleneck opening heat sealing mechanism, the bottleneck opening extension section heat sealing mechanism and the V-shaped heat sealing mechanism respectively comprise an upper heat sealing cutter assembly, a lower heat sealing cutter assembly and a cooling assembly, a heat sealing station for passing an upper film, a fork edge film and a lower film in an up-down overlapped state is formed between the upper heat sealing cutter assembly and the lower heat sealing cutter assembly, and the passing films are heat sealed;
and the material cutting device is used for cutting and blanking the heat-sealed bag body.
Preferably, material feeding unit in the raw materials roll up a set of mechanism and be four groups at least, including last membrane feed group, lower membrane feed group, left fork limit membrane feed group and right fork limit membrane feed group, last membrane feed group and lower membrane feed group set up the input in whole machine equipment, left fork limit membrane feed group and right fork limit membrane feed group locate material feeding unit along raw materials direction of delivery's the left and right sides respectively, both structures are the same, left fork limit membrane feed group and right fork limit membrane feed group still include triangle slope folding leg, the diaphragm is unanimous with last membrane, lower membrane through this triangle folding tilting leg back direction of delivery.
Preferably, the upper membrane feeding group comprises an upper inner membrane feeding mechanism and an upper main membrane feeding mechanism, and the left fork edge membrane feeding group comprises a left fork edge inner membrane feeding mechanism and a left fork edge main mold feeding mechanism; the right fork edge film feeding group comprises a right fork edge inner film feeding mechanism and a right fork edge main mold feeding mechanism; the lower membrane feeding group comprises a lower inner membrane feeding mechanism and a lower main mold feeding mechanism.
Preferably, the number of the drawing devices is multiple, and one drawing device is arranged at the downstream of each heat sealing device.
Preferably, the valve adding device comprises a one-way vent valve feeding device, a valve feeding device and a puncture welding device, the one-way vent valve feeding device provides a required one-way vent valve for valve adding work, and the valve feeding device and the puncture welding device are respectively positioned on two sides of the upper membrane; the valve feeding device pushes the one-way vent valve to be close to the upper film, and the puncture welding device punctures the upper film from the other side and welds the one-way vent valve.
A multi-seal cross edge bag making process comprises the following steps:
A. feeding, namely dividing the raw materials loaded on the reel into an upper film, a middle film and a lower film for conveying, wherein the upper film and the lower film are flatly conveyed, the middle film is a fork edge film and comprises a left fork edge film and a right fork edge film, and the raw materials are folded in half and are arranged between the upper film and the lower film in a bilateral symmetry manner for conveying when the fork edge film is conveyed;
B. adding a valve, puncturing the upper membrane and welding a one-way vent valve; the step is an unnecessary step, when the manufactured ton bag needs to be provided with a one-way vent valve, the upper film is conveyed to a valve adding device to puncture and weld the upper film with the one-way vent valve;
C. longitudinal sealing, namely adopting a heat sealing knife extending along the raw material conveying direction to heat-seal the left edge position of the upper film at the left fork edge and the left edge position of the upper film, and heat-seal the left edge position of the lower film at the left fork edge and the left edge position of the lower film; the right side edge position of the upper film on the right fork edge is connected with the right side edge position of the upper film in a hot-pressing mode, and the right side edge position of the lower film on the right fork edge is connected with the right side edge position of the lower film in a hot-pressing mode;
D. cooling, and cold pressing the longitudinal sealing and hot-bonding finished part again;
E. hot-sealing the upper bottleneck extension section, and hot-stamping the upper bottleneck extension section on the raw material by adopting a bottleneck extension section hot-sealing knife extending along the conveying direction of the raw material; the step is an unnecessary step, when the length of the bottle neck heat-sealing knife is enough, the step is not needed, and the upper bottle neck is processed by the step F of heat-sealing the upper bottle neck at one time;
F. hot sealing the upper bottleneck opening, namely, adopting a bottleneck opening hot sealing knife extending along the conveying direction of the raw materials, hot-sealing the upper bottleneck opening on the raw materials, extending the outer end of the upper bottleneck opening to a longitudinal sealing edge, and connecting the inner end of the upper bottleneck opening with an upper bottleneck opening extension section;
G. the lower bottleneck is heat sealed, the principle is the same as that of the step F, and the direction of the lower bottleneck is symmetrical to that of the upper bottleneck;
H. e, heat-sealing the lower bottleneck extension section according to the principle, wherein the direction of the lower bottleneck extension section is symmetrical to that of the upper bottleneck extension section;
I. performing V-shaped heat sealing, namely ironing and connecting the upper film, the left fork edge film, the right fork edge film and the lower film by adopting a V-shaped heat sealing knife which extends from the left side of the raw material to the right side of the raw material in a direction vertical to the conveying direction of the raw material, and forming a V-shaped sealing seat at the position of the bag body, which is symmetrical to the upper bottleneck;
J. transversely sealing, namely ironing and connecting the upper film, the left fork edge film, the right fork edge film and the lower film at intervals by adopting a straight ironing knife which extends from the left side of the raw material to the right side of the raw material in a direction vertical to the conveying direction of the raw material to form a sealed bag body;
K. cooling, and cold pressing the transverse sealed and hot-welded part again;
and L, cutting off, namely cutting off the bag body from the raw material by adopting a cutter to form an independent bag body.
The beneficial effects of the invention are as follows: the full-automatic multi-fork edge bag processing machine can realize full-automatic streamlined operation, solves the problems that the original multi-fork edge bag can only be processed manually, the production quality cannot be guaranteed, and the production efficiency is low, greatly improves the production efficiency, and has good product processing consistency and high production quality. This application still can come main selection double-film processing or single-film processing, product to add the valve or not add the valve according to the bag type of required production, bag body both ends all establish the bottleneck mouth or one end sets up the bottleneck mouth other end and seals completely, and the flexibility of production is high, has realized that a production water line can produce multiple product, and the adaptability of production is high, has reduced manufacturing cost.
Drawings
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a schematic structural diagram of a feeding device, an adjusting device and a valve adding device of the invention.
FIG. 3 is a schematic view of the structure of the heat-seal apparatus of the present invention.
FIG. 4 is a schematic front view of the left fork side film feeding set of the present invention.
FIG. 5 is a schematic side view of the left fork edge film supply group of the present invention.
Fig. 6 is a schematic view of the structure of the valve-adding device of the present invention.
FIG. 7 is an enlarged schematic view of the valving station of the present invention.
FIG. 8 is a schematic view of the structure of the piercing welding head of the present invention.
Fig. 9 is a schematic structural view of the V-shaped heat seal knife of the present invention.
Figure 10 is a schematic view of the construction of the bottleneck heat seal knife of the present invention.
Fig. 11 is a schematic view of the construction of the neck finish extension heat seal knife of the present invention.
FIG. 12 is a schematic view showing the structure of the V-shaped heat sealing mechanism of the present invention.
FIG. 13 is one of the structural views of the product produced by the present invention.
FIG. 14 is a second embodiment of the present invention.
FIG. 15 is a cross-sectional structural view of a product produced by the present invention.
Description of reference numerals:
1: a feeding device; 2: an adjustment device; 3: a valve adding device; 4: converging stations; 5: a longitudinal sealing mechanism; 6: a pulling device; 7: a bottle neck opening extension section heat sealing mechanism; 8: a bottleneck opening heat sealing mechanism; 9: a V-shaped heat sealing mechanism; 10: a transverse sealing mechanism; 11: a material cutting device; 12: a left fork edge film feeding group; 13: a right fork edge film feeding group; 14: a lower main film feeding mechanism; 15: a lower inner film feeding mechanism; 16: go up main membrane feeding mechanism: 17: an upper inner film feeding mechanism; 18: a cooling mechanism; 19; a triangular inclined folding frame; 20: a left fork edge film; 20-1: coating a film on the left fork edge; 20-2: lower film at the left fork edge; 21: a right fork edge membrane; 21-1: film coating is carried out on the right fork edge; 21-2: a right fork edge lower film; 22: film laying; 23: a left fork edge main die feeding mechanism; 24: a left fork edge inner film feeding mechanism; 25: coating a film; 26: adding a valve working position; 27: a puncture welding device; 28: a one-way vent valve feed passage; 29: a one-way vent valve vibrating disk; 30: a valve delivery device; 31: a one-way vent valve; 32: puncturing and welding the cylinder; 33: a valve-feeding manipulator; 34: a valve feeding cylinder; 35: a wire connecting position; 36: a needle; 37: piercing the welding head; 38: a V-shaped heat sealing knife; 39: a heat sealing knife for the bottleneck; 40: a heat sealing knife at the extending section of the bottleneck interface; 41: an upper heat sealing knife assembly; 42: a lower heat seal knife assembly; 43: a V-shaped seal seat; 44: longitudinally sealing edges; 45: putting the bottle neck on the bottle; 46: an upper bottleneck extension section; 47: a bottle neck opening is arranged; 48: a lower bottleneck extension section; 49: and (6) folding lines.
Detailed Description
The invention is further explained below with reference to the drawings and examples.
Detailed description of the preferred embodiment 1
As shown in fig. 1-12, a multi-seal cross-edge bag machine includes:
the feeding device 1 comprises a plurality of raw material supply roll frame mechanisms;
the adjusting device 2 comprises a plurality of adjusting arm mechanisms which are used for receiving the raw materials of the feeding device 1 and adjusting the tension of the raw materials;
a material distributing device which comprises a plurality of material distributing guide rollers for receiving the raw materials on the adjusting device 2, conveying the raw materials in groups and forming an upper film conveying route and a lower film conveying route; when the valve adding step is required, raw materials are formed into an upper film conveying route and a lower film conveying route through a material dividing device, the upper film 25 is conveyed by the upper film conveying route separately, and the fork edge film and the lower film 22 are stacked together and conveyed by the lower film conveying route; when the valve adding step is not needed, the upper film 25, the fork edge film and the lower film 22 are stacked together and are conveyed by the lower film conveying route;
the valve adding device 3 is used for receiving the upper film 25 conveyed by the material separating device and comprises a valve conveying device 30 and a puncture welding device 27 which puncture the upper film 25 and weld the valve body;
a converging station 4, wherein a converging roller is arranged on the converging station 4 and is used for receiving the upper film 25 conveyed by the upper film conveying path and the fork edge film and the lower film 22 conveyed by the lower film conveying path and enabling the upper film 25, the fork edge film and the lower film 22 to be overlapped up and down;
the drawing device 6 comprises two drawing rollers, a drawing channel is formed between the two drawing rollers, and the two drawing rollers clamp the stacked membrane from the upper side and the lower side and draw the membrane to move forwards together;
as shown in fig. 3, the heat sealing device includes a transverse sealing mechanism 10, a longitudinal sealing mechanism 5, a bottleneck opening heat sealing mechanism 8, a bottleneck opening extension section heat sealing mechanism 7, and a V-shaped heat sealing mechanism 9, wherein the transverse sealing mechanism 10, the longitudinal sealing mechanism 5, the bottleneck opening heat sealing mechanism 8, the bottleneck opening extension section heat sealing mechanism 7, and the V-shaped heat sealing mechanism 9 each include an upper heat sealing knife assembly 41, a lower heat sealing knife assembly 42, and a cooling assembly, and a heat sealing station through which an upper film 25, a side-slitting film, and a lower film 22 in an upper-lower overlapped state pass is formed between the upper heat sealing knife assembly 41 and the lower heat sealing knife assembly 42, and heat-seals the passing films; the structures of the longitudinal sealing mechanism 5 and the transverse sealing mechanism 10 are described in patent documents with application numbers 201920473195.X and 201920473228.0, and will not be described in detail herein; the structure principles of the transverse sealing mechanism 10, the longitudinal sealing mechanism 5, the bottleneck opening heat sealing mechanism 8, the bottleneck opening extension section heat sealing mechanism 7 and the V-shaped heat sealing mechanism 9 are the same, and the actual shape of the heat sealing knife is different from the arrangement direction of the knife body; fig. 9-11 are schematic structural views of a V-shaped heat seal knife 38, a neck-finish heat seal knife 39 and a neck-finish extension heat seal knife 40. The two cooling mechanisms 18 are provided, and the two cooling mechanisms 18 are provided in the subsequent step of the transverse sealing mechanism 10 and the subsequent step of the longitudinal sealing mechanism 5, respectively. The cooling mechanism 18 can further cool and stabilize the horizontal sealing position and the vertical sealing position of the raw material, so as to improve the stability and the flatness of the horizontal sealing and the vertical sealing. After the same position is transversely sealed for many times, the cooling mechanism is used for cooling, and the flatness of the product is good. During operation, this cooling body 18 can be colded pressing again to the position that has already transversely sealed or indulged to seal the completion in the raw materials when transversely sealing with indulge the operation promptly to improve the structural strength who transversely seals and indulge the position, with the intensity that improves the bag body preparation. The structure of the cooling mechanism 18 is described in patent documents having application numbers 201920473195.X and 201920473228.0, and will not be described in detail here.
And the material cutting device 11 is used for cutting and blanking the heat-sealed bag body.
As shown in fig. 2, in this embodiment, the raw material rolling frame mechanisms in the feeding device 1 are at least four groups, including an upper film feeding group 12, a lower film feeding group 13, a left fork edge film feeding group 12 and a right fork edge film feeding group 13, the upper film feeding group 12 and the lower film feeding group 13 are disposed at the input end of the whole machine, the left fork edge film feeding group 12 and the right fork edge film feeding group 13 are respectively disposed at the left and right sides of the feeding device 1 along the raw material conveying direction, and both structures are the same, the left fork edge film feeding group 12 and the right fork edge film feeding group 13 further include a triangular inclined folding frame 19, and the conveying direction of the membrane passes through the triangular inclined folding frame 19 and is the same as that of the upper film 25 and the lower film 22. As shown in fig. 4 and 5, taking the left-fork film supply group 12 as an example, the triangular folding and tilting frame 19 is of an inverted triangular structure, the upper surface of the triangular folding and tilting frame 19 is a transmission surface facing the direction of the production line, the lower surface is an operation surface facing away from the direction of the production line, the left-fork film 20 raw material is input from the left upper edge of the triangular folding and tilting frame 19, is transported along the transmission surface of the triangular folding and tilting frame 19, and is turned over downward on both sides of the triangle, because of the inverted triangular structure, after being turned over, the left-fork film 20 is folded in half to form a folding line 49 on the right with the opening facing the left, and the left-fork film 20 is located between the upper film 25 and the lower film 22, and the transport direction thereof is changed to be consistent with the upper film 25 and the lower film 22. The right fork edge film 21 is symmetrically arranged at the other side of the production line.
In this embodiment, the upper membrane feeding group 12 includes an upper inner membrane feeding mechanism 17 and an upper main membrane feeding mechanism 16, and the left fork edge membrane feeding group 12 includes a left fork edge inner membrane feeding mechanism 24 and a left fork edge main mold feeding mechanism 23; the right fork edge film feeding group 13 comprises a right fork edge inner film feeding mechanism and a right fork edge main mold feeding mechanism; the lower membrane feeding group 13 comprises a lower inner membrane feeding mechanism 15 and a lower main mould feeding mechanism 14; the inner film feeding mechanism and the main film feeding mechanism are arranged up and down, when the produced product is a double-layer film bag, after the raw material film is output from the feeding mechanism, the inner film and the main film are overlapped together to carry out subsequent processes of valve adding, hot-pressing and the like; when the product being produced is a single-layer film bag, only the main film feeding mechanism is activated.
In this embodiment, there are a plurality of drawing devices 6, and one drawing device 6 is provided downstream of each heat-sealing device. Therefore, the raw materials are ensured to stably move in the conveying process and sequentially pass through each heat sealing device, and the ironing position is accurate.
As shown in other 6-8, in this embodiment, the valve adding device 3 includes a one-way vent valve feeding device, a valve adding working position 26, a valve feeding device 30 and a puncture welding device 27, the upper membrane 25 is tensioned and conveyed by a roller set and passes through the valve adding working position 26 in a vertical state, the one-way vent valve feeding device provides a one-way vent valve 31 required for valve adding work, the one-way vent valve feeding device includes a one-way vent valve feeding channel 28 and a one-way vent valve vibrating disk 29, the upper end of the one-way vent valve feeding channel 28 is connected with the one-way vent valve vibrating disk 29, and the lower end extends to the valve feeding device 30; the valve feeding device 30 and the puncture welding device 27 are respectively positioned on the valve adding working position 26 and are respectively positioned at two sides of the upper film 25, the valve feeding device 30 comprises a valve feeding manipulator 33 and a valve feeding cylinder 34 for driving the valve feeding manipulator 33 to be close to the upper film 25, and the valve feeding manipulator 33 is arranged at the lower end of the one-way vent valve feeding channel 28; the puncture welding device 27 comprises a puncture welding head 37 and a puncture welding cylinder 32 for driving the puncture welding head 37 to be close to the upper film 25; the puncture welding head 37 and the valve conveying manipulator 33 are aligned with each other; the valve feeding device 30 pushes the one-way vent valve 31 at the lowest end of the one-way vent valve feeding channel 28 to be close to the upper film 25, and the puncture welding device 27 punctures the upper film 25 from the other side and welds the one-way vent valve 31; the puncture welding head 37 is fixed at one end of the welding seat facing the valve feeding device 30, the end of the puncture welding head 37 is provided with a raised puncture needle 36, the welding seat is provided with a wire connecting position 35, the wire connecting position 35 is connected with a heating device, and the heating device provides heat energy for welding the one-way vent valve 31; the welding seat is connected with the output end of the puncture welding cylinder 32. The valve-feeding cylinder 34 is extended to drive the valve-feeding robot 33 to bring the fallen one-way vent valve 31 close to the upper film 25. At the same time, the penetration weld cylinder 32 is extended and the penetration weld head 37 approaches the upper membrane 25 from the other side. When the valve feeding robot 33 and the puncture welding head 37 are simultaneously abutted against the upper film 25 from both sides, the puncture welding head 37 is heated by the heating means to weld the upper film 25 and the one-way vent valve 31 together. At the same time, spike 36 pierces upper membrane 25 to provide a vent for one-way venting operation of one-way vent valve 31. The packaging bag thus made of the upper film 25 can realize that air enters the one-way vent valve 31 from one side of the upper film 25 through the pierced vent hole and is exhausted to the outside of the other side of the upper film 25 by the one-way vent valve 31 (the operation principle of the one-way vent valve).
A multi-seal cross edge bag making process comprises the following steps:
A. feeding, namely dividing the raw materials loaded on the reel into an upper film 25, a middle film and a lower film 22 for conveying, wherein the upper film 25 and the lower film 22 are flatly conveyed, the middle film is a fork edge film and comprises a left fork edge film 20 and a right fork edge film 21, and the raw materials are folded in half and are arranged between the upper film 25 and the lower film 22 in a bilateral symmetry manner for conveying when the fork edge film is conveyed; the left forked edge film 20 is folded in half to form a left forked edge upper film 20-1 and a left forked edge lower film 20-2, a folding line 49 is arranged at the joint of the right edge of the left forked edge upper film 20-1 and the right edge of the left forked edge lower film 20-2, the right forked edge film 21 is folded in half to form a right forked edge upper film 21-1 and a right forked edge lower film 21-2, and a folding line 49 is arranged at the joint of the left side edge of the right forked edge upper film 21-1 and the left side edge of the right forked edge lower film 21-2; the upper film 25, the middle film and the lower film 22 can be single-layer films or double-layer films, corresponding main film raw materials and inner film raw materials need to be arranged under the condition of double-layer films, in the conveying process, the films of the two raw materials are separately fed and conveyed, and are overlapped together for corresponding subsequent processing;
B. adding a valve, namely puncturing the upper membrane 25 and welding a one-way vent valve 31; this step is an optional step, when the ton bag to be produced needs to be equipped with the one-way vent valve 31, the upper film 25 is conveyed to the valve adding device 3 to puncture and weld the one-way vent valve 31 on the upper film 25;
C. longitudinally sealing, namely, adopting a heat sealing knife extending along the raw material conveying direction to heat-seal the left edge position of the left fork edge upper film 20-1 with the left edge position of the upper film 25, and heat-seal the left edge position of the left fork edge lower film 20-2 with the left edge position of the lower film 22; the right side edge position of the right fork edge upper film 21-1 is connected with the right side edge position of the upper film 25 in a hot-pressing mode, and the right side edge position of the right fork edge lower film 21-2 is connected with the right side edge position of the lower film 22 in a hot-pressing mode, as shown in the figure;
D. cooling, namely cold pressing the longitudinally sealed and hot-welded part again to improve the structural strength of the hot-sealed position and improve the manufacturing strength of the bag body;
E. heat-sealing the upper bottleneck extension section, and hot-stamping the raw material to form an upper bottleneck extension section 46 by adopting a bottleneck extension section heat-sealing knife 40 extending along the conveying direction of the raw material; at the upper bottleneck extension section 46, the left fork edge upper film 20-1 and the upper film 25 are hot-welded together, the left fork edge lower film 20-2 and the lower film 22 are hot-welded together, the right fork edge upper film 21-1 and the upper film 25 are hot-welded together, and the right fork edge lower film 21-2 and the lower film 22 are hot-welded together; this step is an optional step, and when the length of the bottleneck heat-sealing knife 39 is sufficient, the upper bottleneck 45 is processed by the upper bottleneck heat-sealing step F in one step without this step; the structure can determine whether the upper bottleneck extension section needs to be subjected to heat sealing according to the requirements of different sizes, and a segmented splicing and welding process is adopted, so that the problem that the length of the bottleneck heat sealing knife 39 is not enough to be used for hot-stamping the bottleneck extension section is solved, the production cost is reduced, and the production flexibility is higher; F. performing heat sealing on the upper bottleneck opening, namely, adopting a bottleneck opening heat sealing knife 39 extending along the conveying direction of the raw materials to burn and connect an upper bottleneck opening 45 on the raw materials, wherein the outer end of the upper bottleneck opening 45 extends to a longitudinal sealing edge 44, and the inner end of the upper bottleneck opening 45 is connected with an upper bottleneck opening extension section 46;
G. the lower bottleneck mouth is heat sealed, the principle is the same as that in the step F, and the direction of the lower bottleneck mouth 47 is symmetrical to that of the upper bottleneck mouth 45;
H. e, heat-sealing the lower bottleneck extension section, wherein the principle is the same as that of the step E, and the direction of the lower bottleneck extension section 48 is symmetrical to that of the upper bottleneck extension section 46;
J. transversely sealing, namely, ironing and connecting the upper film 25, the left fork edge film 20, the right fork edge film 21 and the lower film 22 at intervals by adopting a linear ironing knife which extends from the left side of the raw material to the right side of the raw material in a direction vertical to the conveying direction of the raw material to form a sealed bag body; the ironing connection position is generally positioned at the bottle neck opening or the bottle neck opening extension section and can be one or more than one; in the process of hot-fix, hot-fix is carried out for a plurality of times by a plurality of transverse sealing mechanisms 10 at the same hot-fix position;
K. cooling, namely cold pressing the part subjected to the last transverse sealing and ironing by the cooling mechanism 18 again to improve the structural strength of the heat sealing position and improve the strength of the bag body;
and L, cutting, namely cutting the bag body from the raw materials by adopting a cutter to form an independent bag body.
The product shown in fig. 14 is produced in this embodiment, and is characterized in that the upper end and the lower end of the product are respectively provided with a bottleneck, so that the upper end and the lower end of the product can be communicated with the external connection, and the product is mainly used for containing a ton bag of new energy powder.
Specific example 2
In this example, steps G-H in specific example 1 were replaced with step I:
step I: and (3) V-shaped heat sealing, namely, a V-shaped heat sealing knife 38 which extends from the left side of the raw material to the right side of the raw material in a direction perpendicular to the conveying direction of the raw material is adopted to carry out hot sealing on the upper film 25, the left fork edge film 20, the right fork edge film 21 and the lower film 22, and a V-shaped sealing seat 43 is formed at the position of the bag body, which is symmetrical to the upper bottleneck 45.
Other steps are the same as those in embodiment 1, and a product as shown in fig. 13 is produced, and the product is characterized in that the bottom of the product is a V-shaped seal seat 43, and the product is of a structure with a closed lower end, and is mainly used for a ton bag for containing particle products.
The present invention is not limited to the production of ton bags and extends to the production of bags by heat sealing in a variety of modes.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "connected" and the like are to be construed broadly, e.g., as meaning fixedly attached, detachably attached, or integrally formed; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (6)

1. A multi-seal fork edge bag making machine is characterized by comprising:
the feeding device comprises a plurality of raw material supply roll frame mechanisms;
the adjusting device comprises a plurality of adjusting arm mechanisms which are used for receiving the raw materials of the feeding device and adjusting the tension of the raw materials; the material distributing device comprises a plurality of material distributing guide rollers for receiving the raw materials on the adjusting device, conveying the raw materials in groups and forming an upper film conveying route and a lower film conveying route;
the valve adding device is used for receiving the upper membrane conveyed by the material distributing device and comprises a valve conveying device and a puncture welding device which puncture the upper membrane and weld the valve body;
the converging station is provided with a converging roller and is used for receiving the upper film conveyed by the upper film conveying line and the fork edge film and the lower film conveyed by the lower film conveying line and superposing the upper film, the fork edge film and the lower film up and down;
the drawing device comprises two drawing rollers, a drawing channel is formed between the two drawing rollers, and the two drawing rollers clamp the stacked membrane from the upper side and the lower side and draw the membrane to move forwards;
the heat sealing device comprises a transverse sealing mechanism, a longitudinal sealing mechanism, a bottleneck opening heat sealing mechanism, a bottleneck opening extension section heat sealing mechanism and a V-shaped heat sealing mechanism, wherein the transverse sealing mechanism, the longitudinal sealing mechanism, the bottleneck opening heat sealing mechanism, the bottleneck opening extension section heat sealing mechanism and the V-shaped heat sealing mechanism respectively comprise an upper heat sealing cutter assembly, a lower heat sealing cutter assembly and a cooling assembly, a heat sealing station for passing an upper film, a fork edge film and a lower film in an up-down overlapped state is formed between the upper heat sealing cutter assembly and the lower heat sealing cutter assembly, and the passing films are heat sealed;
and the material cutting device is used for cutting and blanking the heat-sealed bag body.
2. The bag making machine according to claim 1, wherein the feeding device has at least four sets of material rolling frame mechanisms, including an upper film feeding set, a lower film feeding set, a left fork edge film feeding set and a right fork edge film feeding set, the upper film feeding set and the lower film feeding set are disposed at the input end of the whole machine, the left fork edge film feeding set and the right fork edge film feeding set are respectively disposed at the left and right sides of the feeding device along the material conveying direction, and have the same structure, the left fork edge film feeding set and the right fork edge film feeding set further include triangular inclined folding frames, and the conveying direction of the film sheet passing through the triangular inclined folding frames is the same as that of the upper film and the lower film.
3. The multi-seal forking edge bag-making machine of claim 2, wherein the upper film feeding group comprises an upper inner film feeding mechanism and an upper main film feeding mechanism, and the left forking edge film feeding group comprises a left forking edge inner film feeding mechanism and a left forking edge main mold feeding mechanism; the right fork edge film feeding group comprises a right fork edge inner film feeding mechanism and a right fork edge main mold feeding mechanism; the lower membrane feeding group comprises a lower inner membrane feeding mechanism and a lower main mold feeding mechanism.
4. The multi-slit edge bag machine of claim 1 wherein the pulling device is a plurality of pulling devices, one pulling device being located downstream of each heat sealing device.
5. The multi-seal forked edge bag making machine as claimed in claim 1, wherein said valve-adding means includes one-way vent valve supply means, valve-feeding means and piercing-welding means, said one-way vent valve supply means providing the required one-way vent valve for valve-adding work, said valve-feeding means and piercing-welding means being located on both sides of the upper film, respectively; the valve feeding device pushes the one-way vent valve to be close to the upper film, and the puncture welding device punctures the upper film from the other side and welds the one-way vent valve.
6. A multi-seal fork edge bag making process is characterized by comprising the following steps:
A. feeding, namely dividing the raw materials loaded on the reel into an upper film, a middle film and a lower film for conveying, wherein the upper film and the lower film are flatly conveyed, the middle film is a fork edge film and comprises a left fork edge film and a right fork edge film, and the raw materials are folded in half and are arranged between the upper film and the lower film in a bilateral symmetry manner for conveying when the fork edge film is conveyed;
B. adding a valve, puncturing the upper membrane and welding a one-way vent valve; the step is an unnecessary step, when the manufactured ton bag needs to be provided with a one-way vent valve, the upper film is conveyed to a valve adding device to puncture and weld the upper film with the one-way vent valve;
C. longitudinally sealing, namely, hot-sealing the left edge position of the upper film on the left fork edge and the left edge position of the upper film by using a hot-sealing knife extending along the raw material conveying direction, and hot-sealing the left edge position of the lower film on the left fork edge and the left edge position of the lower film; the right edge position of the upper film on the right fork edge is connected with the right edge position of the upper film in an ironing way, and the right edge position of the lower film on the right fork edge is connected with the right edge position of the lower film in an ironing way;
D. cooling, and cold pressing the longitudinal sealing and hot-bonding finished part again;
E. hot-sealing the upper bottleneck extension section, and hot-stamping the upper bottleneck extension section on the raw material by adopting a bottleneck extension section hot-sealing knife extending along the conveying direction of the raw material; the step is an unnecessary step, when the length of the bottle neck heat-sealing knife is enough, the step is not needed, and the upper bottle neck is processed by the step F of heat-sealing the upper bottle neck at one time;
F. hot sealing the upper bottleneck opening, namely, adopting a bottleneck opening hot sealing knife extending along the conveying direction of the raw materials, hot-sealing the upper bottleneck opening on the raw materials, extending the outer end of the upper bottleneck opening to a longitudinal sealing edge, and connecting the inner end of the upper bottleneck opening with an upper bottleneck opening extension section;
G. the lower bottleneck opening is heat sealed, the principle is the same as that of the step F, and the direction of the lower bottleneck opening is symmetrical to that of the upper bottleneck opening;
H. e, heat-sealing the lower bottleneck extension section according to the principle, wherein the direction of the lower bottleneck extension section is symmetrical to that of the upper bottleneck extension section;
I. performing V-shaped heat sealing, namely ironing and connecting the upper film, the left fork edge film, the right fork edge film and the lower film by adopting a V-shaped heat sealing knife which extends from the left side of the raw material to the right side of the raw material in a direction vertical to the conveying direction of the raw material, and forming a V-shaped sealing seat at the position of the bag body, which is symmetrical to the upper bottleneck;
J. transversely sealing, namely ironing and connecting the upper film, the left fork edge film, the right fork edge film and the lower film at intervals by adopting a straight ironing knife which extends from the left side of the raw material to the right side of the raw material in a direction vertical to the conveying direction of the raw material to form a sealed bag body;
K. cooling, and cold pressing the transverse sealed and hot-welded part again;
and L, cutting off, namely cutting off the bag body from the raw material by adopting a cutter to form an independent bag body.
CN202210358143.4A 2022-04-06 2022-04-06 Multi-seal fork edge bag making machine and bag making process Pending CN114670497A (en)

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Application publication date: 20220628