CN114228255A - Forming process of classified cleaning bags - Google Patents
Forming process of classified cleaning bags Download PDFInfo
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- CN114228255A CN114228255A CN202111588801.0A CN202111588801A CN114228255A CN 114228255 A CN114228255 A CN 114228255A CN 202111588801 A CN202111588801 A CN 202111588801A CN 114228255 A CN114228255 A CN 114228255A
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- 238000004140 cleaning Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000009958 sewing Methods 0.000 claims abstract description 51
- 238000010096 film blowing Methods 0.000 claims abstract description 10
- 238000004804 winding Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 38
- 230000000903 blocking effect Effects 0.000 claims description 17
- 238000005452 bending Methods 0.000 claims description 15
- 230000004888 barrier function Effects 0.000 claims 2
- 239000000463 material Substances 0.000 description 19
- 238000004891 communication Methods 0.000 description 5
- 239000010813 municipal solid waste Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 241000589973 Spirochaeta Species 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Classifications
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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
- B31B70/02—Feeding or positioning sheets, blanks or webs
- B31B70/04—Feeding sheets or blanks
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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
-
- 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
- B31B70/68—Uniting opposed surfaces or edges; Taping by stitching, stapling or riveting
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- Making Paper Articles (AREA)
Abstract
The invention relates to the field of cleaning bag forming, in particular to a classified cleaning bag forming process, which solves the technical problems that the existing drawstring cleaning bag is not simple enough and has more redundant designs, and can effectively realize the forming of cleaning bag rolls with double-color intervals, and comprises the following steps: firstly, a film blowing die head is utilized to realize a spaced double-color film; secondly, positioning the film to form a plurality of sheet bodies, and cutting the notch of the accommodating cavity; thirdly, inputting two flaky pull ropes; fourthly, folding, and completely covering the pull rope by the folded film; fifthly, sewing to form an accommodating cavity, wherein the pull rope is positioned in the accommodating cavity; sixthly, folding the film, wherein the folded part forms a bottom edge; seventhly, sewing at intervals to form side sewing lines; eighthly, sewing the two pull ropes positioned at the notch of the accommodating cavity; ninthly, performing virtual cutting to form a virtual cutting line, and simultaneously performing virtual cutting or cutting off the pull rope; and step ten, folding the film again, and winding to form a cleaning bag roll.
Description
Technical Field
The invention relates to the field of cleaning bag forming, in particular to a classified cleaning bag forming process.
Background
At present, the clean bag of drawstring is the clean bag that comparatively commonly uses in daily life, like chinese patent No.: CN202022723566.0 discloses clean bag of domestic privacy draw rope, including clean bag and stay cord, clean bag top is provided with the bunch groove, the inside cover in bunch groove is equipped with the stay cord, bunch groove outside veneer has the enhancement binding off, the clean bag outside is provided with oblique stripe, clean bag bottom veneer has the enhancement heelpiece, the inside shirt rim that is provided with of clean bag, the inside rubber band that is equipped with of inlayed of interior shirt rim.
However, the existing drawstring cleaning bag is not simple and convenient enough in structure, has more redundant design, and is not favorable for production and molding.
Disclosure of Invention
Therefore, aiming at the problems, the invention provides a classified cleaning bag forming process, which solves the technical problems that the existing drawstring cleaning bag is not simple and convenient enough and has more redundant designs, and can effectively realize the forming of cleaning bag rolls with double-color intervals.
In order to achieve the purpose, the invention adopts the following technical scheme: a classified cleaning bag forming process comprises the following steps:
firstly, realizing a spaced double-color film by using a film blowing die head, and then outputting the film into a wide film;
secondly, after the film is output, a plurality of sheet bodies are positioned on the film, each sheet body is a basic unit for forming a cleaning bag, and notches of the accommodating cavities are cut between adjacent sheet bodies and at two ends of the film in the width direction;
inputting two flaky pull ropes along the conveying direction of the film, wherein the pull ropes are positioned at the notch part of the accommodating cavity;
fourthly, the upper end and the lower end of the film are folded inwards, the folded position is located in the middle of the notch of the containing cavity to form a bending line of the containing cavity, the folded film completely covers the pull rope, and part of the pull rope is located in the notch of the containing cavity;
fifthly, sewing the folded film to form an accommodating cavity, wherein the pull rope is positioned in the accommodating cavity to realize that the pull rope is positioned between the accommodating cavity bending line and the accommodating cavity sewing line;
sixthly, folding the middle part of the film along the width direction, wherein the folded part forms a bottom edge;
seventhly, sewing the folded film at intervals along the length direction to form side sewing lines, wherein two side sewing lines are arranged at two ends of each sheet body along the width direction;
eighthly, after the folding, the two pull ropes are mutually overlapped, and the two pull ropes positioned at the notch of the containing cavity are sewn to form a connecting part;
performing virtual cutting on the film along the adjacent positions of the sheet bodies to form virtual cutting lines, wherein the virtual cutting lines simultaneously perform virtual cutting or cut off the positions of the adjacent pull ropes;
and tenth, folding the film for more than one time along the width direction again, and then winding to form a cleaning bag roll.
Further, in the seventh step, when the side seams are formed, a gap seam is provided in a portion of the film near the bottom side so as to extend from the two side seams to the middle, and a water leakage path for water leakage is provided between the two gap seams.
Furthermore, blocking suture lines are arranged below the two spaced suture lines on the film and below the water leakage channel, and a water passage is formed between each blocking suture line and each spaced suture line.
Further, the distance between the spacing suture line and the blocking suture line is less than 10mm and more than 5 mm.
Further, the spacing suture line is an upward convex curve, and the blocking suture line is a downward convex curve.
Furthermore, in the third step, a water leakage virtual tangent line is arranged on the position, close to the bottom edge, of the film, a tearing piece is adhered to the position, located at the water leakage virtual tangent line, and the tearing piece is used for driving the water leakage virtual tangent line to tear when the film is torn down so as to achieve the purpose of water leakage, and the water leakage virtual tangent line is located between the interval seam line and the bottom edge.
Further, the film blowing die head comprises a feeding base, an inlet pipe is arranged at the upper end of the feeding base, a feeding hole is arranged at the middle part of the inlet pipe, a connecting hole is formed in the side face of the feeding hole, a feeding ring groove for avoiding the connecting hole is formed in the outer side wall of the inlet pipe, a feeding block is sleeved outside the feeding pipe on the feeding base, a first feeding hole communicated with the connecting hole and a second feeding hole communicated with the feeding ring groove are formed in the feeding block, a first spiral die core is sleeved at the upper end of the feeding block and positioned on the inlet pipe, a first step part is formed in the first spiral die core, a first spiral body is arranged on the upper end of the first step part, a first spiral line is arranged on the outer side face of the circumference of the first spiral body, a middle sleeve body is sleeved outside the first step part on the first spiral body, and a second spiral die core is arranged between the middle sleeve body and the first spiral body and positioned on the first step part, the second spiral line is arranged on the outer side face of the circumference of the second spiral mold core, a first feeding channel is formed between the first spiral mold core and the second spiral mold core, a second feeding channel is formed between the second spiral mold core and the middle sleeve body, a plurality of first communicating holes communicated with the first feeding channel and the feeding holes are formed in the first spiral mold core, a plurality of second communicating holes communicated with the second feeding channel and the feeding ring groove are formed in the first spiral mold core, a mounting hole is formed in the upper end of the first spiral mold core, a spherical mold core is rotatably arranged on the mounting hole, a confluence ring is rotatably arranged at the upper end of the second spiral mold core, an upper sleeve body is arranged on the upper end cover of the middle sleeve body, a first extending channel communicated with the first feeding channel is formed between the confluence ring and the mold core, and a second extending channel communicated with the second feeding channel is formed between the upper sleeve body and the confluence ring, and a discharge channel is formed between the upper sleeve body and the spherical mold core, and the first extension channel and the second extension channel are converged at the upper end of the collector ring and are positioned at the lower end of the discharge channel.
Furthermore, the first spiral line is gradually reduced from one end close to the feeding base to one end of the spherical mold core, and the second spiral line is gradually reduced from one end close to the feeding base to one end of the spherical mold core.
Further, the first communicating hole is arranged to be of a structure inclined from inside to outside and from bottom to top, the inclined angle is not smaller than 20 degrees, the second communicating hole is arranged to be of a structure inclined from inside to outside and from bottom to top, and the inclined angle is not smaller than 20 degrees.
Furthermore, an airflow channel communicated with the mounting hole is formed in the first spiral mold core, an air outlet channel is formed in the middle of the spherical mold core, an air inlet channel is formed between the spherical mold core and the first spiral body, and the air inlet channel is communicated with the first extension channel.
By adopting the technical scheme, the invention has the beneficial effects that: this scheme provides a structure succinct, the clean bag of easy fashioned drawstring, and this kind of clean bag can rely on the side of near side stylolite to connect gradually and form the clean bag book moreover. Accordingly, the pull cords are sheet-like and can also be connected in series, so that they do not have large protrusions when wound to form a roll of cleaning bags. And through being provided with the holding chamber incision that is used for exposing the drawstring tip on the both sides of each holding chamber respectively, the tip of two drawstrings forms the ring-type in holding chamber incision mutual bonding to can form the design of bilateral drawstring, and can be convenient for strain, tie. The containing cavity is formed by inwards bending and sewing one end of the sheet body, which is positioned at the opening, the bending part forms a containing cavity bending line, the sewing part forms a containing cavity sewing line, and a containing cavity is formed between the containing cavity bending line and the containing cavity sewing line. Can be conveniently molded. Of course, if the sheet itself adopts a double-layer structure, only sewing is required.
Furthermore, the two sheets are integrally formed at the bottom of the bag body, and compared with sewing, the two sheets are not greatly different, and the sewing is changed into folding in the process, so that different modes of cleaning the bag are realized.
Furthermore, the arrangement of the spacing seam lines and the water leakage channels aims at avoiding that liquid flows downwards due to too much moisture in the garbage aiming at the kitchen garbage, and the rest garbage is positioned on the spacing seam lines. The width of the water leakage channel is usually controlled to be about 20mm, the interval seam is controlled to be about 50mm away from the bottom, and the specific value is adjusted according to the actual requirement.
Furthermore, the arrangement of the blocking suture line and the water passing channel mainly limits the passing of garbage impurities, thereby effectively realizing the purpose of solid-liquid separation. The spacing between the spacing suture line and the blocking suture line is less than 10mm and more than 5 mm.
Furthermore, the spacing suture line is an upward convex curve, and the blocking suture line is a downward convex curve, so that the formed solid-liquid separation effect is better.
Furthermore, the arrangement of the water leakage virtual tangent line and the tearing sheet can realize that the tearing is convenient for water leakage when too much liquid exists, and the tearing sheet can be stuck back after the water leakage is finished.
Further, through first spiral mold core, the setting of second spiral mold core, can form first feedstock channel and second feedstock channel, and be provided with feed port and feeding annular corresponding first feedstock channel and second feedstock channel, it is provided with first sprue and second sprue to correspond feed port and feeding annular, thereby can realize the difference of two kinds of different materials and pour into, two kinds of materials are when converging the ring, converge at feedstock channel's front end, this kind converge not to be mixed, but because first spiral mold core, the spiral output of second spiral mold core, can form the connection of interval nature here, thereby can effectively form the interval distribution of two kinds of materials when blowing off, when two kinds of material colour is different, can form the clean bag of double-colored. Furthermore, the first spiral line is gradually reduced from one end close to the feeding base to one end of the spherical mold core, so that the material can be favorably fed into the spherical mold core, and the thickness of the spherical mold core can be favorably controlled. Furthermore, the second helix diminishes gradually from the one end that is close to the feeding base to the one end of ball-type mold core, can be favorable to the entering of material like this, and the control of thickness. Furthermore, the first through hole is arranged to be in a structure inclined from inside to outside and from bottom to top, and the inclination angle is not less than 20 degrees, so that the material can be favorably fed in. Further, the second communication hole is arranged in a structure inclined from inside to outside and from bottom to top, and the inclination angle is not less than 20 degrees, so that the material can enter the second communication hole conveniently. Furthermore, the arrangement of the airflow channel, the air outlet channel and the air inlet channel can be used for airflow assistance in film blowing.
Drawings
FIG. 1 is a schematic view of a sorting cleaning bag;
FIG. 2 is a schematic structural view of the top view of FIG. 1;
FIG. 3 is a schematic cross-sectional view taken at A-A in FIG. 1;
FIG. 4 is an enlarged view at B in FIG. 3;
FIG. 5 is an enlarged view at C of FIG. 1;
FIG. 6 is a schematic view of the present solution in connection with the formation of a roll of cleaning bags;
FIG. 7 is a schematic structural view of the expanded state of FIG. 6;
fig. 8 is a schematic structural view of a two-color distribution of the cleaning bag.
FIG. 9 is a schematic structural view of a blown film die;
FIG. 10 is a cross-sectional view taken at D-D of FIG. 9;
FIG. 11 is a schematic view of the structure of the feed base cooperating with the feed block;
Detailed Description
The invention will now be further described with reference to the accompanying drawings and detailed description.
Referring to fig. 1 to 5, the present embodiment provides a classification cleaning bag, which is formed by using the forming process, and includes a bag body 1 and two sheet-shaped drawstrings 2, wherein the bag body 1 is formed by stitching two sheet bodies 3 along three sides, wherein two sides of the sheet bodies are stitched to form side stitching lines 31, a bottom stitching line is formed between the two side stitching lines 31, the remaining unsewn side forms an opening 11 of the bag body, an accommodating cavity 33 is formed at the opening 11 on each sheet body 3, each drawstring 2 is disposed in each accommodating cavity 33, two sides of each accommodating cavity 33 are respectively provided with an accommodating cavity cut 13 for exposing an end of the drawstring, ends of the two drawstrings 2 are mutually bonded at the accommodating cavity cut 13 to form a ring shape, and the bonding part forms a connecting part 12. The accommodating cavity 33 is formed by bending and sewing one end of the sheet body 3 at the opening 11 inwards, an accommodating cavity bending line 331 is formed at the bending part, an accommodating cavity sewing line 332 is formed at the sewing part, and the accommodating cavity 33 is formed between the accommodating cavity bending line 331 and the accommodating cavity sewing line 332. The two sheets 3 are integrally formed at the bottom of the bag 1 to form a bottom edge 32, which is equivalent to the bottom seam described above.
The bag body 1 is provided with spaced sewing lines 5 extending from two side sewing lines to the middle part near the bottom, and a water leakage channel 6 for water leakage is arranged between the two spaced sewing lines 5. And blocking sewing threads 7 are arranged below the two spacing sewing threads 5 and below the water leakage channel 6, and a water passage 71 is formed between each blocking sewing thread 7 and each spacing sewing thread 5. The spacing between the spacing suture 5 and the blocking suture 7 is less than 10mm and greater than 5mm, such as 8mm in set size. The spacing suture lines 5 are of upward convex curves, and the blocking suture lines 7 are of downward convex curves. Be close to bottom 32 department on the bag body 1 and be located one of them interval stylolite 5 lower extremes on be provided with the virtual tangent line 8 that leaks, it glues to glue to be located the virtual tangent line 8 that leaks on the bag body 1 and has torn piece 81, tears the piece and is used for driving the virtual tangent line that leaks and tear when tearing down, realizes the purpose of leaking. The tear-off piece 81 is provided with an end portion having one end not coated with glue.
In this scheme, the material of drawstring is the plastics lamellar body that toughness is stronger, hardness is higher, can satisfy the carrying of the bag body of filling with rubbish and draw and knot.
Referring to fig. 6 again, the two bag bodies 1 are connected along the side edges, and the pull ropes 2 are connected in sequence. The virtual tangent line 4 is used for separating the two bag bodies, and the bag bodies can be conveniently torn. And the dotted tangent line is also used for separating the pull rope, so that the separation of the pull rope can be realized. When the cord is separated along the imaginary tangent, i.e. along the junction of the two connecting portions 12, the continuous cord becomes an endless body.
Referring again to fig. 7, which is the expanded state diagram of fig. 6. Wherein, the bending line 331 and the bottom edge 32 of the accommodating cavity are folding lines; the side suture line 31, the accommodating cavity suture line 332 and the connecting part 12 are used for suturing; the virtual tangent line 4 and the water leakage virtual tangent line are used for forming an easy tearing line; the receiving cavity cut 13 is a cutout portion.
Referring again to fig. 8, a schematic of a two-color cleaning bag is disclosed, wherein 1a is a colored portion and 1b is a clear portion.
Referring to fig. 9 to 11 again, this embodiment further provides a classified cleaning bag film blowing die head, including feeding base 91, feeding base 91 upper end is equipped with an inlet pipe 911, the middle part of inlet pipe 911 is equipped with feed inlet 9111, be equipped with connecting hole 9112 on the side of feed inlet 9111, be equipped with the feeding annular 9113 of dodging connecting hole 9112 on the lateral wall of inlet pipe 911, it is equipped with an inlet block 92 to lie in inlet pipe 911 overcoat on feeding base 91, be equipped with the first sprue 921 that communicates with connecting hole 9112 and the second sprue 922 that communicates with feeding annular 9113 on the inlet block 92, the upper end of inlet block 92 and lie in inlet pipe 911 and be equipped with first spiral mold core 93, be equipped with first step portion 931 on the first spiral mold core 93, be equipped with first spirochaeta 932 on the upper end of first step portion 931, be equipped with first helix 9321 on the lateral surface of first spirochaeta circumference 932, the first spiral body 932 is sleeved with a middle sleeve body 94 at a first step portion 931, a second spiral mold core 95 is arranged between the middle sleeve body 94 and the first spiral body 932 and at the first step portion 931, a second spiral line 951 is arranged on the outer circumferential side surface of the second spiral mold core 95, a first feeding channel 933 is formed between the first spiral body 932 and the second spiral mold core 95, a second feeding channel 952 is formed between the second spiral mold core 95 and the middle sleeve body 94, a plurality of first connecting holes 934 for communicating the first feeding channel 933 with the feeding holes 9111 are arranged on the first spiral mold core 93, a plurality of second connecting holes 935 for communicating the second feeding channel 952 with a feeding ring groove 9113 are arranged on the first spiral mold core 93, a mounting hole 9322 is arranged on the upper end of the first spiral body 932, a spherical mold core 96 is rotatably arranged on the mounting hole 9322, a confluence ring 97 is rotatably arranged on the upper end of the second spiral mold core 95, well cover body 94 upper end cover is equipped with the upper cover body 98, form the first passageway 971 that extends of the first feed channel 933 of intercommunication between collector ring 97 and the ball-type mold core 96, the second that forms intercommunication second feed channel 952 between the upper cover body 98 and the collector ring 97 extends passageway 972, form discharging channel 981 between the upper cover body 98 and the ball-type mold core 96, first extension passageway 971, second extend passageway 972 and converge in the lower extreme that discharging channel 981 located the upper end of collector ring 97.
The first helical line 9321 tapers from an end adjacent the feeder base 91 to an end of the ball-type mold core 96. The second spiral line 951 tapers from an end near the feeder base 91 to an end of the spherical core 96. First communicating hole 934 sets to from inside to outside, structure from lower supreme slope, and inclination is not less than 20 degrees, and this scheme selects 25 degrees. The second communication hole 935 is inclined from inside to outside and from bottom to top, and the inclination angle is not less than 20 degrees, and 25 degrees is selected in the scheme.
An air flow channel 936 communicated with the mounting hole 9322 is arranged on the first spiral mold core 93, and an air outlet channel 962 is arranged in the middle of the spherical mold core 96. An air inlet channel 961 is formed between the spherical mold core 96 and the first spiral body 932, and the air inlet channel 961 is communicated with the first extending channel 971.
In fig. 10, solid arrows indicate the feeding direction of the first material, broken arrows indicate the feeding direction of the second material, and chain double-dashed lines indicate the gas flow passages.
Through first spiral mold core, the setting of second spiral mold core, can form first feedstock channel and second feedstock channel, and it is provided with feed port and feeding annular to correspond first feedstock channel and second feedstock channel, it is provided with first sprue and second sprue to correspond feed port and feeding annular, thereby can realize injecting into respectively of two kinds of different materials, two kinds of materials are when converging the ring, converge at feedstock channel's front end, this kind converge and not mix, but because first spiral mold core, the spiral output of second spiral mold core, can form the connection of interval nature here, thereby can effectively form the interval distribution of two kinds of materials when blowing off, when two kinds of material colours are different, can form the clean bag of double-colored. Furthermore, the first spiral line is gradually reduced from one end close to the feeding base to one end of the spherical mold core, so that the material can be favorably fed into the spherical mold core, and the thickness of the spherical mold core can be favorably controlled. Furthermore, the second helix diminishes gradually from the one end that is close to the feeding base to the one end of ball-type mold core, can be favorable to the entering of material like this, and the control of thickness. Furthermore, the first through hole is arranged to be in a structure inclined from inside to outside and from bottom to top, and the inclination angle is not less than 20 degrees, so that the material can be favorably fed in. Further, the second communication hole is arranged in a structure inclined from inside to outside and from bottom to top, and the inclination angle is not less than 20 degrees, so that the material can enter the second communication hole conveniently. Furthermore, the arrangement of the airflow channel, the air outlet channel and the air inlet channel can be used for airflow assistance in film blowing.
Based on the classified cleaning bag and the film blowing die head, the embodiment further provides a classified cleaning bag forming process, which comprises the following steps:
firstly, realizing a spaced double-color film by using a film blowing die head, and then outputting the film into a wide film;
secondly, after the film is output, a plurality of sheet bodies are positioned on the film, each sheet body is a basic unit for forming a cleaning bag, and notches of the accommodating cavities are cut between adjacent sheet bodies and at two ends of the film in the width direction;
inputting two flaky pull ropes along the conveying direction of the film, wherein the pull ropes are positioned at the notch part of the accommodating cavity, a water leakage virtual tangent line is arranged at the position, close to the bottom edge, of the film, a tearing piece is adhered to the position, positioned at the water leakage virtual tangent line, and used for driving the water leakage virtual tangent line to tear when the film is torn down, so that the water leakage purpose is realized, and the water leakage virtual tangent line is positioned between the interval seam and the bottom edge;
fourthly, the upper end and the lower end of the film are folded inwards, the folded position is located in the middle of the notch of the containing cavity to form a bending line of the containing cavity, the folded film completely covers the pull rope, and part of the pull rope is located in the notch of the containing cavity;
fifthly, sewing the folded film to form an accommodating cavity, wherein the pull rope is positioned in the accommodating cavity to realize that the pull rope is positioned between the accommodating cavity bending line and the accommodating cavity sewing line;
sixthly, folding the middle part of the film along the width direction, wherein the folded part forms a bottom edge;
and seventhly, sewing the folded film at intervals along the length direction to form side sewing lines, wherein two side sewing lines are arranged at two ends of each sheet body along the width direction, when the side sewing lines are formed, the position, close to the bottom edge, of the film is provided with the spacing sewing lines in an extending mode towards the middle from the two side sewing lines, a water leakage channel for water leakage is arranged between the two spacing sewing lines, blocking sewing lines are arranged below the two spacing sewing lines on the film and below the water leakage channel, a water passing channel is formed between the blocking sewing lines and each spacing sewing line, and the distance between the spacing sewing lines and the blocking sewing lines is smaller than 10mm and larger than 5 mm. The spacing suture line is an upward convex curve, and the blocking suture line is a downward convex curve;
eighthly, after the folding, the two pull ropes are mutually overlapped, and the two pull ropes positioned at the notch of the containing cavity are sewn to form a connecting part;
performing virtual cutting on the film along the adjacent positions of the sheet bodies to form virtual cutting lines, wherein the virtual cutting lines simultaneously perform virtual cutting or cut off the positions of the adjacent pull ropes;
and tenth, folding the film for more than one time along the width direction again, and then winding to form a cleaning bag roll.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A classified cleaning bag forming process is characterized by comprising the following steps:
firstly, realizing a spaced double-color film by using a film blowing die head, and then outputting the film into a wide film;
secondly, after the film is output, a plurality of sheet bodies are positioned on the film, each sheet body is a basic unit for forming a cleaning bag, and notches of the accommodating cavities are cut between adjacent sheet bodies and at two ends of the film in the width direction;
inputting two flaky pull ropes along the conveying direction of the film, wherein the pull ropes are positioned at the notch part of the accommodating cavity;
fourthly, the upper end and the lower end of the film are folded inwards, the folded position is located in the middle of the notch of the containing cavity to form a bending line of the containing cavity, the folded film completely covers the pull rope, and part of the pull rope is located in the notch of the containing cavity;
fifthly, sewing the folded film to form an accommodating cavity, wherein the pull rope is positioned in the accommodating cavity to realize that the pull rope is positioned between the accommodating cavity bending line and the accommodating cavity sewing line;
sixthly, folding the middle part of the film along the width direction, wherein the folded part forms a bottom edge;
seventhly, sewing the folded film at intervals along the length direction to form side sewing lines, wherein two side sewing lines are arranged at two ends of each sheet body along the width direction;
eighthly, after the folding, the two pull ropes are mutually overlapped, and the two pull ropes positioned at the notch of the containing cavity are sewn to form a connecting part;
performing virtual cutting on the film along the adjacent positions of the sheet bodies to form virtual cutting lines, wherein the virtual cutting lines simultaneously perform virtual cutting or cut off the positions of the adjacent pull ropes;
and tenth, folding the film for more than one time along the width direction again, and then winding to form a cleaning bag roll.
2. The classified cleaning bag forming process according to claim 1, wherein: and seventhly, when the side seams are formed, spacing seams are arranged on the film at the positions close to the bottom edge and extend from the two side seams to the middle, and a water leakage channel for water leakage is arranged between the two spacing seams.
3. The classified cleaning bag forming process according to claim 2, wherein: and barrier sewing threads are arranged below the two spaced sewing threads on the film and below the water leakage channel, and a water passage is formed between each barrier sewing thread and each spaced sewing thread.
4. The classified cleaning bag forming process according to claim 3, wherein: the spacing between the spacing suture line and the blocking suture line is less than 10mm and more than 5 mm.
5. The classified cleaning bag forming process according to claim 3, wherein: the spacing suture line is an upward convex curve, and the blocking suture line is a downward convex curve.
6. The classified cleaning bag forming process according to claim 2, wherein: in the third step, a water leakage virtual tangent line is arranged on the position, close to the bottom edge, of the film, a tearing piece is adhered to the position, located at the water leakage virtual tangent line, and used for driving the water leakage virtual tangent line to tear when the film is torn down, so that the water leakage purpose is achieved, and the water leakage virtual tangent line is located between the interval seam line and the bottom edge.
7. A process for forming a classified cleaning bag according to any one of claims 1 to 6, wherein: the film blowing die head comprises a feeding base, an inlet pipe is arranged at the upper end of the feeding base, a feeding hole is arranged at the middle part of the inlet pipe, a connecting hole is arranged on the side face of the feeding hole, a feeding ring groove for avoiding the connecting hole is arranged on the outer side wall of the inlet pipe, a feeding block is sleeved outside the feeding pipe on the feeding base, a first feeding port communicated with the connecting hole and a second feeding port communicated with the feeding ring groove are arranged on the feeding block, a first spiral die core is sleeved at the upper end of the feeding block and positioned on the inlet pipe, a first step part is arranged on the first spiral die core, a first spiral body is arranged on the upper end of the first step part, a first spiral line is arranged on the outer side face of the circumference of the first spiral body, a middle sleeve body is sleeved outside the first step part on the first spiral body, and a second spiral die core is arranged between the middle sleeve body and the first spiral body and positioned on the first step part, the second spiral line is arranged on the outer side face of the circumference of the second spiral mold core, a first feeding channel is formed between the first spiral mold core and the second spiral mold core, a second feeding channel is formed between the second spiral mold core and the middle sleeve body, a plurality of first communicating holes communicated with the first feeding channel and the feeding holes are formed in the first spiral mold core, a plurality of second communicating holes communicated with the second feeding channel and the feeding ring groove are formed in the first spiral mold core, a mounting hole is formed in the upper end of the first spiral mold core, a spherical mold core is rotatably arranged on the mounting hole, a confluence ring is rotatably arranged at the upper end of the second spiral mold core, an upper sleeve body is arranged on the upper end cover of the middle sleeve body, a first extending channel communicated with the first feeding channel is formed between the confluence ring and the mold core, and a second extending channel communicated with the second feeding channel is formed between the upper sleeve body and the confluence ring, and a discharge channel is formed between the upper sleeve body and the spherical mold core, and the first extension channel and the second extension channel are converged at the upper end of the collector ring and are positioned at the lower end of the discharge channel.
8. The classified cleaning bag forming process according to claim 7, wherein: the first spiral line is gradually reduced from one end close to the feeding base to one end of the spherical mold core, and the second spiral line is gradually reduced from one end close to the feeding base to one end of the spherical mold core.
9. The classified cleaning bag forming process according to claim 7, wherein: the first communicating hole is arranged into a structure which is inclined from inside to outside and from bottom to top, the inclination angle is not less than 20 degrees, the second communicating hole is arranged into a structure which is inclined from inside to outside and from bottom to top, and the inclination angle is not less than 20 degrees.
10. The classified cleaning bag forming process according to claim 7, wherein: an airflow channel communicated with the mounting hole is formed in the first spiral mold core, an air outlet channel is formed in the middle of the spherical mold core, an air inlet channel is formed between the spherical mold core and the first spiral body, and the air inlet channel is communicated with the first extension channel.
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|---|---|---|---|
| CN202111588801.0A CN114228255B (en) | 2021-12-23 | 2021-12-23 | Classified cleaning bag forming process |
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|---|---|---|---|
| CN202111588801.0A CN114228255B (en) | 2021-12-23 | 2021-12-23 | Classified cleaning bag forming process |
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| CN114228255B CN114228255B (en) | 2024-03-19 |
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