CN111186174A - Method and equipment for manufacturing garbage bag - Google Patents
Method and equipment for manufacturing garbage bag Download PDFInfo
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- CN111186174A CN111186174A CN201911389875.4A CN201911389875A CN111186174A CN 111186174 A CN111186174 A CN 111186174A CN 201911389875 A CN201911389875 A CN 201911389875A CN 111186174 A CN111186174 A CN 111186174A
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0017—Combinations of extrusion moulding with other shaping operations combined with blow-moulding or thermoforming
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/28—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of blown tubular films, e.g. by inflation
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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
- B31B70/14—Cutting, e.g. perforating, punching, slitting or trimming
- B31B70/142—Cutting, e.g. perforating, punching, slitting or trimming using presses or dies
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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
- B31B70/14—Cutting, e.g. perforating, punching, slitting or trimming
- B31B70/16—Cutting webs
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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
- B31B70/26—Folding sheets, blanks or webs
- B31B70/262—Folding sheets, blanks or webs involving longitudinally folding, i.e. along a line parallel to the direction of movement
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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
- B31B70/74—Auxiliary operations
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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
- B31B70/74—Auxiliary operations
- B31B70/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings
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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
- B31B70/74—Auxiliary operations
- B31B70/86—Forming integral handles or mounting separate handles
- B31B70/872—Forming integral handles on bags
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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
- B31B70/74—Auxiliary operations
- B31B70/86—Forming integral handles or mounting separate handles
- B31B70/874—Forming integral handles or mounting separate handles involving punching or cutting
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Making Paper Articles (AREA)
Abstract
The invention relates to a method and equipment for manufacturing garbage bags, which comprises the following steps of S1: melting the raw materials; s2: filtering the melted raw materials and extruding; s3: blowing the extruded raw material into a film; s4: after film blowing, stretching and drawing to form a cylindrical film sheet, and forming strip-shaped thickness bulges on the outer surface or/and the inner surface of the cylindrical film sheet locally; s5: the two symmetrical sides of the cylindrical sheet membrane are folded inwards to form inserting edges; s6: cooling; s7: flattening the cylindrical film along the folding lines at two sides to form two films with two sides integrally formed and two ends communicated; s8: heat-sealing both ends of the first sheet of film and the second sheet of film; s9: forming a notch in one end of the first piece of film and the second piece of film by die cutting so as to form a handle; s10: die-cutting at least one end of the strip-shaped thickness bulge to form an easy-to-open part; s11: die cutting to form individual bag sizes; s12: the bag forming method solves the problems that how to manufacture the easy-to-open garbage bag and the realization process is simple.
Description
Technical Field
The invention relates to the field of garbage bag manufacturing, in particular to a garbage bag manufacturing method and equipment.
Background
At present, in 2019, 7 and 1, the Shanghai is the first to forcibly perform garbage classification, promulgated regulations on domestic garbage management in Shanghai cities are issued, and the sequence of garbage classification is disclosed. According to the arrangement of the ecological environment department of the people's republic of China, 46 major cities at the end of 2020 are first tried, and cities at the national level and above at the end of 2025 are basically built into a garbage classification treatment system. Along with this government act, quarter-waste bags have come into existence, including kitchen waste, other waste, hazardous waste, and recyclable waste. According to the quartering method, the plastic garbage bag belongs to other garbage and is mainly incinerated, so when the kitchen garbage is thrown, the kitchen garbage needs to be thrown into the garbage can, and the garbage bag needs to be thrown into other garbage, namely, the bag needs to be broken for treatment.
There is no method of manufacturing such a trash bag on the market today, and there is a need to provide a manufacturing process that enables the manufacture of an easy-open trash bag.
Disclosure of Invention
The invention aims to provide a method and equipment for manufacturing a garbage bag, and solves the problems that how to manufacture an easy-to-open garbage bag and the implementation process is simple.
The technical scheme for solving the technical problems is as follows: a method of manufacturing a trash bag, comprising S1: melting the raw materials;
s2: filtering and extruding the melted raw materials;
s3: blowing a film on the extruded raw material;
s4: stretching and drawing the film after film blowing to form a cylindrical film sheet, and forming strip-shaped thickness bulges on the outer surface or/and the inner surface of the cylindrical film sheet locally;
s5: folding the two symmetrical sides of the cylindrical film inwards to form inserting edges;
s6: cooling;
s7: flattening the cylindrical film along the folding lines at two sides to form two films with two sides integrally formed and two ends communicated;
s8: heat-sealing both ends of the first sheet of film and the second sheet of film;
s9: forming a notch in one end of the first piece of film and the second piece of film by die cutting so as to form a handle;
s10: die-cutting at least one end of the strip-shaped thickness bulge to form an easy-to-open part;
s11: die cutting to form individual bag sizes;
s12: and (6) forming the bag.
Further, a step S7-1 is included between the step S7 and the step S8: folding the first sheet of film and the second sheet of film in half longitudinally, including step S8-1 between said step S8 and step S9: and respectively heat-sealing two sides of one end of the folded first film and one end of the folded second film, and directly heat-sealing the other ends of the folded first film and the folded second film.
Further, in the step S10, an easy-open portion is die-cut at a position of the strip-shaped thickness protrusion near the handle portion.
Further, the steps S9, S10 and S11 may be performed at the same time or at the same time, the steps S8 and S11 may be performed at the same time, the steps S11 and S8-1 may be performed at the same time, and the steps S9 and S10 may be performed at the same time or at the same time.
Further, the steps between S7 and S7-1 include a step N1: and rolling the film.
Further, the step M1 is included between the step S7 and the step N1: and printing zipper pictures and texts on the outer sides of the strip-shaped thickness protrusions on the surfaces of the first film and the second film.
The invention provides equipment for manufacturing garbage bags, which comprises a bracket, a raw material extrusion device, a film blowing device, a traction device, a winding device, a die cutting device and a hot cutting device, the output end of the raw material is connected with the input end of the film blowing device, the film blowing device comprises a die head and a die cover, the die cover is sleeved on the periphery of the die head, a notch is arranged on the inner surface of one side of the output end of the die cover, which is close to the die head, the end face of the output end of the die cover is uniformly provided with vent holes which are connected with an air pump through pipelines, the traction device is fixed at the top of the bracket, the input end of the traction device corresponds to the position of the die head, an inserting plate is fixedly arranged on the support corresponding to the position of the input end of the traction device, the hot cutting device comprises two hot cutting parts, and a partition plate is arranged between the two hot cutting parts.
Further, the support comprises a first layer support, a second layer support and a third layer support, the first layer support, the second layer support and the third layer support are sequentially and fixedly arranged, the third layer support is fixed on the ground, the second layer support is arranged at the top of the third layer support, the first layer support is fixedly arranged at the top of the second layer support, the traction device is fixedly arranged in the first layer support and comprises a tractor, first tension compression rollers and a first transmission shaft, the first tension compression rollers and the first transmission shaft are symmetrically arranged, the first tension compression rollers are fixed on the second layer support and between the output end of the tractor and the winding device and are used for transmitting and dragging the film, the first tension compression rollers are symmetrically arranged and are fixedly arranged on the first layer support, the first tension compression rollers are close to the output end of the tractor and the position of the winding device, the first tension compression rollers are used for flattening the film, and the die cutting device and the hot cutting device are fixed, the second transmission shaft is fixed on a frame of the transmission device, the inserting plate is provided with two symmetrical parts which are arranged on the side surface of the first layer of support and correspond to the input end of the tractor, and the punching device is arranged on the frame of the transmission device and is positioned at a position close to the third layer of support.
Further, the breach evenly is provided with two to two hundred.
Further, the extrusion device is a single-screw extruder, the film blowing device is a film blowing machine, the die cutting device is a die cutting machine, the hot cutting device is a hot cutting machine, the extruder is far away from the output end and is connected with a cooling fan, and the cooling fan is used for cooling the interior of the extruder.
Furthermore, stairs are fixedly arranged between the first layer of support and the second layer of support, and stairs are arranged between the second layer of support and the third layer of support.
The beneficial effect that above-mentioned technical scheme brought: provides a manufacturing process for manufacturing an easy-to-open garbage bag with a handle, and the method is simple.
Drawings
FIG. 1 is a schematic view of a garbage bag manufacturing apparatus according to the present invention;
FIG. 2 is a schematic view of a mold structure of the garbage bag manufacturing apparatus according to the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. the device comprises an extrusion device, 2, a film blowing device, 3, a traction device, 4, a winding device, 5, a die cutting device, 6, a hot cutting device, 7, a die head, 8, a die cover, 9, a notch, 10, an air vent, 11, a first transmission shaft, 12, a first tension pressure roller, 13, a punching device, 14 and a cooling fan.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "center", "inner", "outer", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the present invention provides a method for manufacturing a garbage bag, including S1: melting the raw materials; s2: filtering and extruding the melted raw materials; s3: blowing a film on the extruded raw material; s4: stretching and drawing the film after film blowing to form a cylindrical film sheet, and forming strip-shaped thickness bulges on the outer surface or/and the inner surface of the cylindrical film sheet locally; s5: folding the two symmetrical sides of the cylindrical film inwards to form inserting edges; s6: cooling; s7: flattening the cylindrical film along the folding lines at two sides to form two films with two sides integrally formed and two ends communicated; s8: heat-sealing both ends of the first sheet of film and the second sheet of film; s9: forming a notch in one end of the first piece of film and the second piece of film by die cutting so as to form a handle; s10: die-cutting at least one end of the strip-shaped thickness bulge to form an easy-to-open part; s11: die cutting to form individual bag sizes; s12: bag shaping, this application provides a method makes easily open disposal bag, solves people inconvenient problem of operation when realizing rubbish classification, what need specifically explain is: the method comprises the steps of putting raw material master batches for manufacturing the garbage bag into a material outlet of an extruder, heating and melting the raw material master batches to form a fluid state or a colloid, extruding the liquefied raw material from an output end of the extruder after passing through a filter in the extruder, blowing the film by a film blowing machine, conveying the blown film to a tractor for traction and stretching due to the fact that a longitudinal strip-shaped through hole is formed in the surface of the side wall of a die cover of the film blowing machine, enabling a sheet film blown out through a die head to be cylindrical, forming a longitudinal strip-shaped area with thickness being larger than the rest part of the cylindrical sheet film on the surface of the side wall of the cylindrical sheet film, namely forming a folded edge by turning two symmetrical sides of the cylindrical sheet film inwards through partition plates on two sides, flattening the cylindrical sheet film, namely enabling the two sides of the garbage bag to be overlapped and integrally connected, both ends opening, further use the single size of sack to carry out the heat-seal between with two coincident piece membranes as the standard, with two piece membranes that form through the blown film a plurality of first piece membranes and the second piece membrane of placing of flattening, then will flatten first piece membrane and second piece membrane one end mould surely have the rectangle breach, perhaps according to actual need cross cutting's breach can be the shape that makes the disposal bag after the shaping have the portion of hanging up, facilitate the use, the preferred is: with first piece membrane and second piece membrane one end and have the same cross cutting of part of hem, in order to form the handle like this, the one end that has the handle is used for placing rubbish for the opening part that the top surface also is after the disposal bag shaping uses, the bottom surface of disposal bag after the other end is the shaping, then will have the bar bellying of thickness also be the easy opening portion of the one end cross cutting of being close to breach department of easy tear strip, easy opening portion can be: "U" type breach, can be the zip fastener shape, take "U" section mould incision as an example, "the opening part of U" type is towards the opposite side of easy tear strip, convenient in the opening of disposal bag, further die-cut process with whole piece membrane die-break into single sack size or make and connect for the broken string mode of point between a plurality of single sacks, that is to say the cross-cut can be cut off between two sacks completely, also can make and connect convenient and practical simultaneously make things convenient for the sack lapping through the broken string of point between two sacks, when adopting the mode of cutting off between two sacks, step S8 and step S11 can go on simultaneously, it is required to explain: the surperficial thickness of sack is protruding can be at the surface of sack protruding with can be at the internal surface of sack protruding, thickness bulge is the easy strip that tears after the disposal bag shaping, when "U" type easily open the portion can set up the one end or both ends at easy strip that tears, can set up in bottom or the top that is close to the sack, the protruding of surface bar thickness of tube-shape piece membrane can have at least one, when being two or more than two, can be the both sides surface that is located the shaping sack respectively, when the disposal bag shaping and when placing the sack is vertical, easy strip that tears also is vertical state, it is required to explain: the sequence of the step S9, the step S10 and the step S11 can be changed at will, or the step S9, the step S10 and the step S11 can be carried out simultaneously, finally, the garbage bag with the handle is formed by the manufacturing method, so that when people discard kitchen garbage, the garbage bag is moved through the handle, then the easy-to-tear strip is directly damaged by pulling up the easy-to-open part from one end, the hand does not need to be in contact with the surface of the garbage bag, the garbage naturally falls to the garbage can, and then the garbage bag is thrown into the garbage can of other garbage, so that the garbage classification is assisted, the use is more convenient for people, and people do not need to worry about the fact that the garbage contacts the hand.
The manufacturing method of the easy-to-open garbage bag can also comprise the following steps on the basis of the technical scheme described above: a step S7-1 is included between the step S7 and the step S8: folding the first sheet of film and the second sheet of film in half longitudinally, including step S8-1 between said step S8 and step S9: the two sides of one end of the first film and one side of one end of the second film are respectively heat-sealed after being folded, and the other ends of the first film and the second film are directly heat-sealed after being folded, and the heat sealing method needs to be explained as follows: step S8-1 and step S11 may be performed simultaneously, step S11 may be performed after step S10, or step S11 is performed after step S8-1, the first film and the second film are folded in half along the center line, at this time, an insertion plate extends into one end of the first film and one end of the second film, two sides of one end of the first film and one end of the second film inserted into the insertion plate are separated and simultaneously scalded, that is, the folded first film and the folded second film need to be separated and heat sealed by the formed handle portion, so as to avoid that the two handles cannot be separated after forming, the bottom of the bag is directly heat sealed after folding, and finally the bag is formed, the insertion plate is inserted between the first film and the second film to form an insertion edge, so that the formed garbage bag has increased utilization space, and the strength of the bottom of the prepared garbage bag is higher after heat sealing.
The manufacturing method of the easy-to-open garbage bag can also comprise the following steps on the basis of the technical scheme described above: in the step S10, the easy-to-open portion is die-cut at the end, close to the handle, of the strip-shaped thickness protrusion, so that after the bag is formed, people can directly destroy the easy-to-tear strip from the handle, close to the bag, and avoid contacting with the bottom of the garbage bag, and after one end of the easy-to-tear strip is destroyed, the easy-to-tear strip is continuously straightened along the track until the end of the easy-to-tear strip reaches the bottom of the easy-to-tear strip, so that the easy-to-open portion is not required to be completely broken, and the garbage can.
The manufacturing method of the easy-to-open garbage bag can also comprise the following steps on the basis of the technical scheme described above: the steps S9, S10 and S11 may be interchanged with each other or performed simultaneously, the steps S8 and S11 may be performed simultaneously, the steps S11 and S8-1 may be performed simultaneously, and the steps S9 and S10 may be interchanged with each other or performed simultaneously.
The manufacturing method of the easy-to-open garbage bag of the invention, as shown in fig. 2, can also be based on the technical scheme described above: the steps S7 and S7-1 include a step N1: and (3) rolling the sheet film, wherein the step N1 can be positioned between S7 and S7-1, or the step N1 can be positioned between S7-1 and S8, rolling the blown sheet film and then longitudinally folding the whole sheet film in half during the process of continuous conveying.
The manufacturing method of the easy-to-open garbage bag can also comprise the following steps on the basis of the technical scheme described above: the step M1 is included between the step S7 and the step N1: forming strip-shaped thickness projections on the surfaces of the first film and the second film partially, and printing zipper pictures and texts on the outer sides of the projections: the zipper images and texts are printed on the outer sides of the strip-shaped thickness protrusions formed on the surfaces of the first film and the second film, in addition, the step M1 can be positioned between the step S8-1 and the step S9, and the step M1 can be positioned between the step S7-1 and the step S8 to prompt people of the position of the easily torn strip on the garbage bag, so that the zipper images and texts are convenient for people to use.
The invention provides equipment for manufacturing garbage bags according to the manufacturing method of the easy-to-open garbage bag, which comprises a support, a raw material extrusion device 1, a film blowing device 2, a traction device 3 and a winding device 4, wherein the output end of the raw material is connected with the input end of the film blowing device 2, the film blowing device 2 comprises a die head 7 and a die cover 8, the die cover 8 is sleeved on the periphery of the die head 7, the inner surface of the output end of the die cover 8, close to one side of the die head 7, is provided with a notch 9, the end surface of the output end of the die cover 8 is uniformly provided with vent holes 10, the vent holes 10 are connected with an air pump through pipelines, the traction device 3 is fixed at the top of the support, the input end of the traction device 3 corresponds to the position of the die head 7, an inserting plate is fixedly arranged on the support corresponding to the input end of, the application is a device for specifically manufacturing a garbage bag with a handle, raw materials are firstly put into a feeding port of an extruding device 1 and melted by an internal heating device, a spiral pushing device is arranged in the extruding machine to push the melted raw materials to the output end of the extruding machine, a filter screen is arranged near the output end in the extruding machine, the melted raw materials are pushed by the pushing device and filtered by the filter screen and then enter from the input end of a film blowing device 2, the raw materials are blown out from a position between a die head 7 and a die cover 8 through the film blowing device 2, the raw materials are blown out to form a cylindrical film due to the fact that the area between the die head 7 and the die cover 8 is circular, the raw materials are blown out to form the cylindrical film, a notch 9 is arranged on the inner surface of the side of the output end of the die cover 8 and close to the die head 7, the notch 9 can be set by itself according to actual needs, the notch 9 can, that is, the easy-tearing strip on the surface of the formed garbage bag is formed, the air pump is communicated with the air vent 10 on the die cover 8 through a pipeline, so that the film blown out by the film blowing device 2 is cooled by air as a medium through air blowing of the air pump, one end of the cylindrical film enters the input end of the traction device 3 for traction and stretching, the symmetrical two sides of the cylindrical film are inserted when the cylindrical film passes through the insertion plate before entering the input end of the traction device 3, then the cylindrical film enters the traction device for winding and traction, and further the cylindrical film enters the winding device, and then the cylindrical film is changed into a flat sheet film with the two sides inserted, namely a garbage bag semi-finished product with two communicated sides, the transmission device also comprises a transmission device and a punching device 13, the transmission device comprises a second transmission shaft, the sheet film is arranged at the input end of the transmission device, the sheet film passes through the punching device 13 through the transmission of the second transmission shaft, and the, the punching device 13 punches and cuts the surface of a strip-shaped area with a thicker sheet film to form an easy-to-open part, when a plurality of gaps 9 are arranged, the easy-to-open function can be realized only by cutting the easy-to-open part in the thicker area, so that the strength of the thicker strip-shaped area is increased, the thickness of two sides with the increased thickness of the strip-shaped area is the same as that of other parts of the sheet film, so that the easy-to-tear strip can be better torn, then the rolled sheet film is folded along a vertical central line and then one end of the rolled sheet film is put into the hot cutting device 6, the sheet film can be manually folded in the process of being folded in half through the machine transmission process, the sheet film is formed into the easy-to-open part before being folded in half to avoid damaging the sheet film, however, if the easy-to-tear strips are arranged on two sides of a formed bag body, then the easy-, the baffle is in order to prevent the adhesion when the handle shaping of both sides, the baffle inserts in the instant that the piece membrane one end after the fifty percent discount stops through having certain temperature (temperature numerical value is decided according to the material) heat-seal sword at the film transport, further will be close to the piece membrane edge part of baffle and heat-seal and the cutting with it through two earnestly departments, the baffle is in order to prevent the adhesion when the handle shaping of both sides, continue the transmission with the piece membrane, further carry out heat-seal and single item separation with the rear end conveying of piece membrane through earnestly device 6, further banding cooling, thereby reach certain heat-seal strength. The heat-sealing pressure can be controlled by adjusting the height of the sealing knife. Through adjusting the settlement temperature in the control by temperature change table, the temperature of sword is sealed in the control, further gets into cutting device 5 with the piece membrane of fifty percent discount and the one end cross cutting of difference hot-cutting goes out the rectangle incision, accomplishes the shaping of handle part, and the equipment manufacturing disposal bag of this application is efficient, and the disposal bag that produces has the effect of easily opening, conveniently carries out waste classification, needs to explain to be: the garbage bag can also be after the heat-seal of piece membrane bottom break some knife lines in bottom edge when carrying out the separation of singleness through the earnestly machine at last, and piece membrane top position also can be through breaking some knife lines with the bottom junction of its another piece membrane, can be when finally forming the finished product like this with a whole roll of disposal bag winding facilitate the use, directly tear the use along the breakpoint knife line with single disposal bag when using.
The equipment for manufacturing the garbage bag of the invention can also be characterized in that on the basis of the technical scheme described above: the film winding device comprises a support, a first layer of support, a second layer of support and a third layer of support, wherein the first layer of support, the second layer of support and the third layer of support are sequentially and fixedly arranged, the second layer of support is arranged at the top of the third layer of support, the first layer of support is fixedly arranged at the top of the second layer of support, a traction device 3 is fixedly arranged in the first layer of support, the traction device 3 comprises a tractor, first tension compression rollers (12) which are symmetrically arranged, and a first transmission shaft (11) which is fixed on the second layer of support and between the output end of the tractor and a winding device and is used for transmitting and dragging a film, the first tension compression rollers 12 which are symmetrically arranged are fixedly arranged on the first layer of support, are close to the output end of the tractor and are close to the position of the winding device, are used for flattening the film, the first transmission shaft is used for transmitting the film, and the film passes through the two first tension compression rollers 12 which are symmetrically arranged, make the piece membrane more level and smooth, cutting device 5 and hot cutting device 6 are fixed on transmission's frame, and wherein a certain amount of second transmission shafts are fixed on transmission's frame, the picture peg has the input of setting at first layer support side surface and corresponding tractor of two symmetries, and punching device 13 installs on transmission's frame and is located the position that is close to the third layer support, and the tube-shape membrane that blows off through the inflation film manufacturing machine is exported between die head 7 and the die cover 8, and the input that the one end of piece membrane got into the tractor through first transmission shaft, and what need explain is: the film passes through a first transmission shaft 11 and then passes through a first tension press roll 12, then enters a rolling device 4, the rolling device 4 comprises a rotating shaft and a plurality of first transmission shafts 11, the rolling device 4 is driven by a motor, the motor drives the rotating shaft to rotate, one end of the film is fixed on the rotating shaft, then the whole film can be rolled and formed, the rotating shaft driven by the motor refers to an air expansion shaft (after the shaft is inflated, the movable part is ejected outwards due to the fact that the internal air pressure is larger than the external air pressure), after the movable part is fixed, a gear on one side of the air expansion shaft is connected with a magnetic powder tension controller, the control of the tension is realized by adjusting the torque and the current of the magnetic powder clutch, the formability of the film is better, the first transmission shaft plays a role in pulling the film and preventing the position deviation during rolling, the rolled film in the rolling process is better in the rolling process, the transmission of the film finally passes between the first tension press rolls through the two symmetrical arrangements, entering a winding device, which needs to be explained as follows: tube-shape piece membrane is at first inserted limit through the picture peg behind first transmission shaft 11, punching device 13 is installed on transmission's the frame and is located the position that is close to the third layer support, cutting device 5 and hot cutting device 6 can adjust the position as required, do not punch a hole before the piece membrane fifty percent discount and easily open the portion, can let the piece membrane fifty percent discount peg graft the baffle in one end simultaneously, then transmit to hot cutting device 6 through the second transmission shaft, then make the handle shaping through cutting device 5 again, can also be earlier hand-held portion cross cutting shaping, then with its piece membrane fifty percent discount back both ends opening part heat-seal, it is preferred: the bottom of the first garbage bag is connected with the handle of the second garbage bag through a breakpoint knife line, so that the garbage bag is convenient for people to use, and the number of the first transmission shaft 11, the second transmission shaft and the first tension compression roller can be set according to actual needs.
The equipment for manufacturing the garbage bag of the invention can also be characterized in that on the basis of the technical scheme described above: breach 9 evenly is provided with two to two hundred, and the sunken degree of depth of breach 9 makes the thickness in the thick region of bar two to two hundred times of other regional piece membrane thickness, better assurance the intensity of disposal bag and easily tear the outstanding of strip position, makes things convenient for people to pour rubbish.
The equipment for manufacturing the garbage bag of the invention can also be characterized in that on the basis of the technical scheme described above: extrusion device 1 is single screw extruder, blown film device 2 is blown film machine, and blown film machine can be that the individual layer is extruded, the bilayer is extruded or the three-layer is extruded, cutting device 5 is the cross cutting machine, hot cutting device 6 is the hot cutting machine, the output is kept away from to the extruder and is connected with radiator fan 14 for the extruder has the radiating effect, prevents that the machine is overheated and reduces life and to the raw materials temperature regulation realization heat dissipation of difference.
The equipment for manufacturing the garbage bag of the invention can also be characterized in that on the basis of the technical scheme described above: stairs are fixedly arranged between the first layer of support and the second layer of support, stairs are arranged between the second layer of support and the third layer of support, after the cylindrical film is blown out by the die head 7, people need to reach the first layer of support through the stairs to send one end of the cylindrical film into the input end of the tractor, the tractor is driven by the motor to realize traction, stretching and fixing of the cylindrical film, and the cylindrical film is made into the sheet film.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A method for manufacturing a garbage bag is characterized in that: the method comprises the following steps:
s1: melting the raw materials;
s2: filtering and extruding the melted raw materials;
s3: blowing a film on the extruded raw material;
s4: stretching and drawing the film after film blowing to form a cylindrical film sheet, and forming strip-shaped thickness bulges on the outer surface or/and the inner surface of the cylindrical film sheet locally;
s5: folding the two symmetrical sides of the cylindrical film inwards to form inserting edges;
s6: cooling;
s7: flattening the cylindrical film along the folding lines at two sides to form two films with two sides integrally formed and two ends communicated;
s8: heat-sealing both ends of the first sheet of film and the second sheet of film;
s9: forming a notch in one end of the first piece of film and the second piece of film by die cutting so as to form a handle;
s10: die-cutting at least one end of the strip-shaped thickness bulge to form an easy-to-open part;
s11: die cutting to form individual bag sizes;
s12: and (6) forming the bag.
2. The method of manufacturing an easy-open trash bag of claim 1, wherein: a step S7-1 is included between the step S7 and the step S8: folding the first sheet of film and the second sheet of film in half longitudinally, including step S8-1 between said step S8 and step S9: and respectively heat-sealing two sides of one end of the folded first film and one end of the folded second film, and directly heat-sealing the other ends of the folded first film and the folded second film.
3. The method of manufacturing an easy-open trash bag of claim 2, wherein: in step S10, an easy-open portion is die-cut from the strip-shaped thickness protrusion near the handle portion.
4. The method of manufacturing an easy-open trash bag of claim 3, wherein: the steps S9, S10 and S11 may be interchanged with each other or performed simultaneously, the steps S8 and S11 may be performed simultaneously, the steps S11 and S8-1 may be performed simultaneously, and the steps S9 and S10 may be interchanged with each other or performed simultaneously.
5. The method of manufacturing an easy-open trash bag of claim 4, wherein: the steps S7 and S7-1 include a step N1: and rolling the film.
6. The method of manufacturing an easy-open trash bag of claim 5, wherein: the step M1 is included between the step S7 and the step N1: and printing zipper pictures and texts on the outer sides of the strip-shaped thickness protrusions on the surfaces of the first film and the second film.
7. An apparatus for manufacturing a trash bag according to the method of claim 1-6 for easy opening of trash bags, characterized in that: comprises a support, a raw material extrusion device (1), a film blowing device (2), a traction device (3), a winding device (4), a die cutting device (5) and a hot cutting device (6), wherein the output end of the raw material is connected with the input end of the film blowing device (2), the film blowing device (2) comprises a die head (7) and a die cover (8), the die cover (8) is sleeved on the periphery of the die head (7), a notch (9) is formed in the inner surface of the output end of the die cover (8) and close to one side of the die head (7), vent holes (10) are uniformly arranged on the end surface of the output end of the die cover (8), the vent holes (10) are connected with an air pump through pipelines, the traction device (3) is fixed at the top position of the support, the input end of the traction device (3) corresponds to the position of the die head (7), and an inserting plate is fixedly arranged on the support corresponding to the input end position of the traction device (, the hot cutting device (6) comprises two hot cutting parts, and a partition plate is arranged between the two hot cutting parts.
8. An apparatus for manufacturing garbage bags according to claim 7, characterized in that: the support comprises a first layer support, a second layer support and a third layer support which are sequentially arranged and fixedly arranged in the direction, the third layer support is fixed on the ground, the second layer support is arranged at the top of the third layer support, the first layer support is fixedly arranged at the top of the second layer support, a traction device (3) is fixedly arranged in the first layer support, the traction device (3) comprises a tractor, a first tension compression roller (12) and a first transmission shaft (11) which are symmetrically arranged, the first tension compression roller (12) is fixedly arranged on the second layer support and between the output end of the traction device and a winding device, the first transmission shaft is used for transmitting and drawing a film, the first tension compression rollers (12) which are symmetrically arranged are fixedly arranged on the first layer support and are close to the output end of the tractor and the position of the winding device, the first tension compression roller is used for flattening the film, a die cutting device (5) and a hot cutting device (6) are fixed on a frame of the transmission device, the second transmission shaft is fixed on a frame of the transmission device, the inserting plate is provided with two symmetrical parts which are arranged on the side surface of the first layer of support and correspond to the input end of the tractor, and the punching device (13) is arranged on the frame of the transmission device and is positioned at a position close to the third layer of support.
9. An apparatus for manufacturing garbage bags according to claim 8, characterized in that: the gaps (9) are uniformly provided with two to two hundred.
10. An apparatus for manufacturing garbage bags according to claim 9, characterized in that: the extrusion device (1) is a single-screw extruder, the film blowing device (2) is a film blowing machine, the die cutting device (5) is a die cutting machine, the hot cutting device (6) is a hot cutting machine, the extruder is far away from the output end and is connected with a cooling fan (14), and the cooling fan is used for cooling the interior of the extruder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911389875.4A CN111186174A (en) | 2019-12-30 | 2019-12-30 | Method and equipment for manufacturing garbage bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911389875.4A CN111186174A (en) | 2019-12-30 | 2019-12-30 | Method and equipment for manufacturing garbage bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111186174A true CN111186174A (en) | 2020-05-22 |
Family
ID=70704628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911389875.4A Withdrawn CN111186174A (en) | 2019-12-30 | 2019-12-30 | Method and equipment for manufacturing garbage bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111186174A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112571863A (en) * | 2020-10-26 | 2021-03-30 | 郑州市彦峰塑料包装有限公司 | Flexible packaging plastic bag forming process and special trimming device |
| CN114290721A (en) * | 2021-12-31 | 2022-04-08 | 海南创佳达生物科技有限公司 | High-toughness full-biodegradable plastic bag and production process thereof |
-
2019
- 2019-12-30 CN CN201911389875.4A patent/CN111186174A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112571863A (en) * | 2020-10-26 | 2021-03-30 | 郑州市彦峰塑料包装有限公司 | Flexible packaging plastic bag forming process and special trimming device |
| CN114290721A (en) * | 2021-12-31 | 2022-04-08 | 海南创佳达生物科技有限公司 | High-toughness full-biodegradable plastic bag and production process thereof |
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Application publication date: 20200522 |