CN203111665U - Exhaust valve bag - Google Patents
Exhaust valve bag Download PDFInfo
- Publication number
- CN203111665U CN203111665U CN 201220738181 CN201220738181U CN203111665U CN 203111665 U CN203111665 U CN 203111665U CN 201220738181 CN201220738181 CN 201220738181 CN 201220738181 U CN201220738181 U CN 201220738181U CN 203111665 U CN203111665 U CN 203111665U
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- CN
- China
- Prior art keywords
- blow
- sticking
- seam
- sticking seam
- valve pocket
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model provides an exhaust valve bag, relating to packaging bags. The exhaust valve bag is used for containing powdered or granular solid materials and flexible articles. The technical scheme adopted by the utility model is used for solving the technical problems of complicated valve port and upper/lower bottom structure and high product cost of existing valve bags and is as follows: at least two layers of films with staggered pinholes and the same length are overlapped; the edges of one sides of the films are aligned and adhered, the other sides of the films are adhered together, and adhered seams at the two sides are folded oppositely; upper edges and lower edges are adhered respectively; and one sides of the films and the other sides of the films are adhered together by longitudinal bag sealing adhered seams, and a valve port is formed between the upper ends of the films and the upper sides of the adhered seams. Exhaust valve bags (EAV, RB810, RB820 and RB830) can be put into rubber refining equipment together with contained rubber refining ingredients so as to be mixed with rubber. The RB810, the RB820 and the RB830 can be subjected to vulcanization at the vulcanization temperature of rubber, and the exhaust valve bag (RB810, RB820 or RB830) contains the rubber refining ingredients, so that the rubber refining time can be shortened, the rubber production efficiency is increased, the glossiness and flexibility of rubber products are improved, and the fissure is prevented.
Description
Technical field
The utility model relates to packaging bag, is a kind of blow off valve pocket concretely
Background technology
The valve port bag has packaging efficiency, convenient transportation, firmness is strong, breakage rate the is low characteristics of improving.Go to the bottom and the valve port complex structure on the existing valve port bag, the cost of product height is because the complex structure of existing valve port bag so the manufacturing technology of existing valve port bag with regard to corresponding complexity, is difficult to realize full automation processing, influences valve port bag work efficiency and productive costs.There is the refining glue batching of a kind of EVA valve port bag and its splendid attire can add rubber preparing device in the lump now, with the even blend of rubber, do not influence the quality of rubber, alleviated working strength of workers, avoided dust from flying, but, it is single bag, can not exhaust, easy broken bag when pneumatic transmission jar bag and piling can only splendid attire particle and sheet refining glue batching, the valve port of this EVA valve port bag needs artificial welding, also there is complex structure, is difficult to realize full automation processing, influence the drawback of valve port bag work efficiency and productive costs.
The utility model content
The utility model will solve the valve port of existing valve port bag and bottom structure complexity up and down, and the technical matters that cost of product is high provides a kind of simple in structure, the blow off valve pocket that cost of product is low.
In order to solve above-mentioned technical matters, the technical scheme that the utility model is taked is: a kind of blow off valve pocket, comprise the two-layer at least film that has pin hole, and described each layer film is overlapping, and the pin hole on the adjacent films layer is staggered; Each layer film length is identical, the end wise alignment, and at Width, each layer film justified margin on one side is bonded together and forms the sticking seam of edging, and each layer film another side is by being bonded together in conjunction with sticking seam; Have each layer film and relative the folding of each layer film that has in conjunction with sticking seam that edging glues seam, the sticking seam of edging covers in conjunction with sticking and stitches; The last lower edge of film length direction is the sticking seam in bonding formation top and following sticking seam respectively; The sticking seam of vertical envelope is bonded together the one side on each layer film Width with another side, cover the sticking seam of edging and the sticking seam of combination; Vertically the space between the sticking seam in the upper end of the sticking seam of envelope and top is the charging valve port.
Each layer film pin hole is staggered, and lower edge is bonding respectively on length direction, and vertically the sticking seam of envelope is bonded together the one side on each layer film Width with another side, form upper-lower seal, valve port the side can the splendid attire powder packaging bag.Pin hole is rounded, rhombus, oblong or square etc., and rule or fitfull are arranged on film.The exhaust of blow off valve pocket entire body, the exhausting problem when having solved can and piling, pollution and the waste of avoiding bag breakage to cause.Blow off valve pocket of the present utility model simple in structure, cost of product is low; The valve port charging is convenient, and can utilize the pressure automatic sealing of air, charging.
Vertically the sticking seam of envelope is various informative, and wherein vertical edge is essential.1 font is the sticking seam of the simplest vertical envelope, and it does not go up horizontal edge, has only a vertical edge.
Vertically the sticking seam of envelope is the Γ font, and the vertical edge that the Γ font is single is positioned at the position near valve port, and the space between the sticking seam in the last horizontal edge of Γ font and top is the charging valve port.Last horizontal edge is convenient to canned delivery pipe and is injected valve port can material.
Vertically the sticking seam of envelope is the ∏ font, and the outside vertical edge of the close valve port position of ∏ font covers the sticking seam of edging and stitches in conjunction with sticking, and the space between the sticking seam in the last horizontal edge of ∏ font and top is the charging valve port.
Vertically the sticking seam of envelope is the font of falling Ш, and the outside vertical edge of the close valve port position of the font of falling Ш covers the sticking seam of edging and stitches in conjunction with sticking, and the space between the sticking seam in the last horizontal edge of the font of falling Ш and top is the charging valve port.
When charging, carrying and piling, vertically sticking seam is weak link, easily cracking.Vertically the vertical edge of the sticking seam of envelope is exactly vertically to glue seam.The sticking seam of 1 font and the vertical envelope of Γ font has only a vertically sticking seam, and is simple in structure, but vertically sticking seam intensity a little less than, when the can material, break easily; The last horizontal edge of the sticking seam of the vertical envelope of Γ font can stop that the can material pours in down a chimney to gush valve port, still also can make the material of can enter the relative folded portions in film both sides.∏ font and the vertical envelope of Ш font are sticking to be stitched, and has two or three vertically to glue seam, vertically glues seam intensity height, safety during the can material, and the material of can not enter the relative folded portions in film both sides.
Vertically the sticking seam of envelope has horizontal edge and plural vertical edge, and the following air by-pass passage that horizontal direction connects is left in the vertical edge bottom.Vertically the vertical edge of the sticking seam of envelope does not have bonding at following air by-pass passage place.Following air by-pass passage is communicated with in atmosphere and the bag, and the air of bag inner bottom part is discharged more unobstructedly when making first charge, has increased the safety of blow off valve pocket.
Vertically the sticking seam of envelope has horizontal edge and plural vertical edge, and last air by-pass passage is arranged on the last horizontal edge; There is middle air by-pass passage at vertical edge middle part except the vertical edge of the outside, air by-pass passage and following air by-pass passage on the middle air channel connection.Vertically envelope is sticking is sewn on air by-pass passage and middle air by-pass passage place does not have bonding.Last air channel connection atmosphere in air by-pass passage, following air by-pass passage and the bag, makes the air discharge at middle part in the when filling with substance bag more unobstructed on the middle air channel connection, has increased the safety of blow off valve pocket.
Vertically the outside vertical edge of the sticking seam of envelope overlaps with the position of the sticking seam of edging.Aspect intensity, the vertically sticking seam of blow off valve pocket, special outside vertical edge is weak link, easily cracking.Outside vertical edge overlaps not only attractive in appearance with the sticking seam of edging, importantly Hot secures admittedly, has increased the intensity of sticking seam.
Vertically the sticking seam of envelope has horizontal edge and plural vertical edge, and last horizontal edge is that circular arc is connected with outside vertical edge and inboard vertical edge.Circular arc connects attractive in appearance, the intensity height at place, valve port bottom.
Vertically the sticking seam of envelope has horizontal edge and plural vertical edge, and the inner of last horizontal edge is upturned.The charging door of traditional packaging bag is about equating, the blow off valve pocket impact failure of little valve port is little in when filling with substance air and material are externally big.
The film fabric width of each layer of blow off valve pocket is equal, or unequal, or part is unequal.
The blow off valve pocket has the fabric width of thin film at least less than the fabric width of other layer film.The blow off valve pocket valve port place that has reduced some layer film fabric widths is constant with the blow off valve pocket valve port place number of plies that waits the fabric width film to make, and has both guaranteed the intensity of blow off valve pocket, has saved material again.The different film of fabric width can be overlapping by any order.
Described film is the EVA(ethylene-vinyl acetate copolymer) or RB810, RB820, RB830(themoplasticity neoprene) film.EAV, RB810, RB820 and RB830 membrane waterproofing, protection against the tide.The fusing point of eva film is between 75-90 ℃, glue furnacing temperature is about 100 ℃ in the rubber rubber mixing technique, the blow off valve pocket that eva film is made drops into rubber preparing device with the refining glue batching of splendid attire, can not influence the quality of rubber in fusion under the glue furnacing temperature and the even blend of rubber; RB810, RB820 and RB830 are neoprene, fusing point is between 71-90 ℃, the blow off valve pocket that RB810, RB820 or RB830 film are made drops into rubber preparing device with the refining glue batching of splendid attire, the even blend of fusion and rubber under glue furnacing temperature, RB810, RB820 and RB830 can vulcanize under the temperature of the vulcanization of rubber; The heat of fusion of RB810, RB820 and RB830 material is half of EVA material, adopt RB810, RB820 or RB830 blow off valve pocket can shorten the refining glue time, enhance productivity, stop to refine the risk that the glue overlong time is decomposed some pharmaceutical chemicalss, be conducive to improve the quality of rubber; Add RB810, RB820 or RB830 material in the rubber and can improve the glossiness of rubber, increase the elasticity of rubber, prevent the be full of cracks of rubber.EAV of the present utility model, RB810, RB820 and RB830 exhaust valve port bag constructions are simple, can the splendid attire powder.The sack that common PE film is made, fusing point be at 110-135 ℃, can not fusion under glue furnacing temperature and blend rubber even, become impurity, have a strong impact on the quality of rubber.
Have anti-skidding salient point on the surface of blow off valve pocket outer membrane.Be convenient to carrying, deposit.
The utility model has the advantages that: blow off valve pocket simple in structure, cost of product is low, and the valve port charging is convenient, automatic sealing.The blow off valve pocket can the splendid attire powder, entire body exhaust, the exhausting problem when having solved can and piling.EAV, RB810, RB820 and RB830 blow off valve pocket can drop into rubber preparing device with the refining glue batching of splendid attire, with the even blend of rubber, particularly RB810, RB820 and RB830 can vulcanize under the temperature of the vulcanization of rubber, its heat of fusion is half of EVA material, adopt RB810, RB820 or RB830 blow off valve pocket splendid attire refining glue batching can shorten the refining glue time, improve rubber production efficient, increase glossiness, the elasticity of rubber, prevent the rubber be full of cracks.
Description of drawings
Fig. 1 is the structural representation of four embodiment of the utility model;
Fig. 2 is the A-A generalized section of Fig. 1;
Fig. 3 is the B-B generalized section of Fig. 1;
Fig. 4 is the C-C generalized section of Fig. 1;
Fig. 5 is the D-D generalized section of Fig. 1.
The specific embodiment
Accompanying drawings.
In Fig. 2-Fig. 5, clear for what show, the distance between the film is enlarged.
Embodiment 1, and as figure, the blow off valve pocket of splendid attire refining rubber powder shape batching has double-layer films.The circular pin hole that Φ 1mm is arranged on the film, pin hole line-spacing are 22mm, and the row distance is 10mm.Double-layer films is overlapping, and pin hole is staggered.Pin hole does not draw in the accompanying drawing.Film is the EAV material, and wherein the content of VA is 10%, film thickness 0.10mm.Internal layer membrane 1 is identical with outer membrane 2 length, all is 620mm; The fabric width of internal layer membrane 1 is 970mm, manys 60mm than the fabric width of outer membrane 2.The justified margin on internal layer membrane 1 and outer membrane 2 the right, heat seal form the sticking seam 5 of edging together; The edge heat seal on outer membrane 2 left sides forms in conjunction with sticking seam 6 on internal layer membrane 1.The left side of internal layer membrane 1 is together with turning back 180 ° to the right in conjunction with sticking seam 6, and what the sticking seam of the edging on internal layer membrane 1, outer membrane 2 the right 5 was relative turns back 180 ° left.The sticking seam 5 of edging covers in conjunction with gluing seam 6, and in the left side in conjunction with sticking seam 6, edging glues seam 5 and stitches 6 at a distance of 20mm in conjunction with sticking.The last lower edge of film length direction heat seal respectively forms the sticking seam 3 in top and following sticking seam 4.Vertically the sticking seam 7 of envelope is the ∏ font, and the right of outer membrane 2 and internal layer membrane 1 and the left side of outer membrane 2 and internal layer membrane 1 are bonded together.Vertically envelope glues seam 7
OnHorizontal edge is respectively that circular arc is connected with its outside vertical edge with inboard vertical edge, and the inner of last horizontal edge is upturned.Outside vertical edge upper extreme point stitches 4 at a distance of 440mm with following gluing, and inboard vertical edge upper extreme point stitches 4 at a distance of 450mm with following gluing, and outside vertical edge and inboard vertical edge are at a distance of 85mm, and the sticking space of stitching between 3 in last horizontal edge and top is the valve port 12 of feeding.Outside vertical edge covers the sticking seam of edging and in conjunction with sticking seam, near the inboard vertical edge in the bag on the left side of internal layer membrane 1.Position relation when relating to the right of internal layer membrane 1 and outer membrane 2 and limit that the left side refers to them in the narration and also not having flanging.Vertically the vertical edge lower end of the sticking seam 7 of envelope with following sticking stitch 4 between 45mm do not have bondingly, leave down air by-pass passage 9.There vertically have the breach of 20mm not have on the last horizontal edge of the sticking seam 7 of envelope to be bonding, air path 10 formations in, and vertically envelope glues and stitches in the middle part of 7 the inboard vertical edge uniformly at intervals the breach of three 50mm and do not have bondingly, forms three middle air by-pass passages 11.
Have anti-skidding salient point on the film on the blow off valve pocket surface of present embodiment, so that carry, deposit.Anti-skidding salient point does not draw in the accompanying drawing.The blow off valve pocket can be shades of colour, and printing of all kinds can be carried out in the surface.
The blow off valve pocket of embodiment 3 and the difference of embodiment 1 are that the film of blow off valve pocket is PP material film.The structure of embodiment 3 blow off valve pockets is identical with embodiment 1 with method for making, and both structural representations are also identical.
The blow off valve pocket of embodiment 4 and the difference of embodiment 1 are that the film of blow off valve pocket is PE material film.The structure of embodiment 4 blow off valve pockets is identical with embodiment 1 with method for making, and both structural representations are also identical.
Claims (10)
1. a blow off valve pocket comprises the two-layer at least film that has pin hole, it is characterized in that described each layer film is overlapping, and the pin hole on the adjacent films layer is staggered; Each layer film length is identical, the end wise alignment, and at Width, each layer film justified margin on one side is bonded together and forms the sticking seam of edging (5), and each layer film another side is by being bonded together in conjunction with sticking seam (6); Have each layer film and relative the folding of each layer film that has in conjunction with sticking seam (6) that edging glues seam (5), the sticking seam of edging (5) covers in conjunction with sticking stitch (6); The last lower edge of film length direction is the sticking seam in bonding formation top (3) and following sticking seam (4) respectively; Vertical sticking seam of envelope (7) is bonded together the one side on each layer film Width with another side, cover the sticking seam of edging (5) and the sticking seam of combination (6); Vertically the space between the sticking seam in the upper end of the sticking seam of envelope (7) and top (3) is charging valve port (12).
2. blow off valve pocket according to claim 1 is characterized in that the sticking seam of vertical envelope (7) is the Γ font, and the vertical edge that the Γ font is single is positioned at the position near valve port (12).
3. blow off valve pocket according to claim 1 is characterized in that sticking stitch (7) of vertical envelope are the font of falling Ш, and the outside vertical edge of close valve port (12) position of the font of falling Ш covers the sticking seam of edging (5) and stitches (6) in conjunction with gluing.
4. blow off valve pocket according to claim 1 is characterized in that the sticking seam of vertical envelope (7) has horizontal edge and plural vertical edge, and the following air by-pass passage (9) that horizontal direction connects is left in its vertical edge bottom.
5. blow off valve pocket according to claim 1 is characterized in that the sticking seam of vertical envelope (7) has horizontal edge and plural vertical edge, has last air by-pass passage (10) on the horizontal edge on it; There is middle air by-pass passage (11) at vertical edge middle part except the vertical edge of the outside, air by-pass passage (10) and following air by-pass passage (9) in middle air by-pass passage (11) connection.
6. according to claim 1 or 3 or 4 or 5 described blow off valve pockets, it is characterized in that the outside vertical edge of the sticking seam of vertical envelope (7) overlaps with the position of the sticking seam of edging (5).
7. blow off valve pocket according to claim 1 is characterized in that the sticking seam of vertical envelope (7) has horizontal edge and plural vertical edge, and the inner of last horizontal edge is upturned.
8. blow off valve pocket according to claim 1 is characterized in that the blow off valve pocket has the fabric width of thin film at least less than the fabric width of other layer film.
9. blow off valve pocket according to claim 1 is characterized in that described film is EVA ethylene-vinyl acetate copolymer or RB810, RB820, RB830 themoplasticity neoprene film.
10. blow off valve pocket according to claim 1 is characterized in that having anti-skidding salient point on the surface of blow off valve pocket outer membrane (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220738181 CN203111665U (en) | 2012-12-28 | 2012-12-28 | Exhaust valve bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220738181 CN203111665U (en) | 2012-12-28 | 2012-12-28 | Exhaust valve bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203111665U true CN203111665U (en) | 2013-08-07 |
Family
ID=48892035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220738181 Expired - Lifetime CN203111665U (en) | 2012-12-28 | 2012-12-28 | Exhaust valve bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203111665U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111511650A (en) * | 2017-12-14 | 2020-08-07 | 史太林格有限责任公司 | Bag for bulk material |
-
2012
- 2012-12-28 CN CN 201220738181 patent/CN203111665U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111511650A (en) * | 2017-12-14 | 2020-08-07 | 史太林格有限责任公司 | Bag for bulk material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130807 |
|
| CX01 | Expiry of patent term |