CN213975212U - Valve port bag valve port device with sealing function - Google Patents
Valve port bag valve port device with sealing function Download PDFInfo
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- CN213975212U CN213975212U CN202022181825.1U CN202022181825U CN213975212U CN 213975212 U CN213975212 U CN 213975212U CN 202022181825 U CN202022181825 U CN 202022181825U CN 213975212 U CN213975212 U CN 213975212U
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- port device
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- valve port
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Abstract
The valve port device of the valve bag with the sealing function is characterized in that more than one valve plate is arranged in a valve barrel, one end, facing a feed inlet of the valve barrel, of the valve plate is fixed on the inner wall of the valve barrel, and the other end, facing a discharge outlet, of the valve plate is movably separated from the valve barrel. The utility model discloses a valve port device uses on paper, mould or paper mould the combination valve bag for replace current valve port, be equipped with a plurality of valve blocks in the valve section of thick bamboo, can be many times, the multidimensional material that blocks leaks: the materials in the bag are extruded in multiple directions from outside to inside to close the valve cylinder to realize primary sealing, the materials remained in the valve cylinder and the materials extruded to enter the valve cylinder can be intercepted by the secondary valve plate to realize secondary sealing, a gap between the secondary valve plate and the valve cylinder discharge port is filled with the materials, the expansion of the materials can be further reduced, the main channel of the valve port device is further reduced, the leakage of the materials is prevented, and the leakage of the materials is greatly relieved by the multi-level and multi-dimensional sealing mode.
Description
Technical Field
The utility model relates to a valve port bag valve port device with sealing function especially relates to a paper, moulds, paper moulds compound individual layer or multilayer valve port bag's sealed valve port device, belongs to packing technical field.
Background
The valve bag is well known for high filling efficiency and excellent packing performance, and the unique valve port self-sealing principle of the valve bag accords with automatic production under large industrial conditions. Whether the valve port is a single-piece type or double-piece type, or a cylinder type inner valve port or a cylinder type outer valve port is formed in a heat seal mode or a supersonic wave valve port layer is infinite, but a satisfactory solution is not always provided when the problem that materials in a bag and materials remained in a valve port channel continuously leak through the valve port is solved.
The problem of material leakage from the valve opening in the storage and transportation process is solved, and two ideas and modes are mainly provided at present: the other is a built-in valve port, which is a mode of utilizing the pressure of materials in the bag to push the valve sheet and the bag body to be closed to form sealing. Although the built-in valve port can solve the problem of leakage of most materials, the leakage in the material handling process, particularly the leakage of the materials in the valve port channel, is completely restrained, residual gas in the bag flows along with the material handling process, the valve plate and the bag body are closed, and the residual gas flowing in the bag is opened from inside to outside, so that the material is leaked, and the material is easy to damp due to the fact that the valve port is opened.
The other type is an external valve port, namely a mode of bonding the external valve port by utilizing hot melt adhesive or ultrasonic welding to prevent materials from leaking. The external valve port in the physical closed state easily causes the falling and tearing of the valve port viscose due to the fact that materials are directly extruded to the bonding position of the valve port under the condition of material carrying and the overlarge pressure difference between the inside and the outside of the bag. In addition, the material is still remained in the valve port channel after canning, which will seriously affect the bonding strength of the valve port, thereby reducing the sealing effectiveness of the valve port, and meanwhile, the external valve port has higher manufacturing cost, uses special equipment and continuously consumes energy, thus increasing the use cost.
Therefore, a valve port device with leakage prevention and moisture prevention for a valve port bag with higher cost performance is needed to be found so as to reduce the loss caused by material leakage and moisture and reduce the dust pollution caused by material leakage.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a valve sleeve sealing solution with better leakage-proof and moisture-proof performance for a valve bag, reducing the loss caused by material leakage and moisture, reducing the dust pollution caused by material leakage, and achieving the purposes of protecting the environment and saving resources.
The technical scheme of the utility model is that: the valve port device of the valve bag with the sealing function is characterized in that more than one valve block 2 is arranged in a valve barrel 1, one end, facing a feed inlet of the valve barrel, of the valve block 2 is fixed on the inner wall of the valve barrel, and the other end, facing a discharge outlet, of the valve block 2 is movably separated from the valve barrel.
The valve cylinder 1 comprises a main valve 11, and the main valve further comprises a main valve plate 111 folded from the feeding hole to the discharging hole.
The valve cylinder also comprises more than one secondary valve 12 which is nested with each other, and each secondary valve comprises a secondary valve plate 121 which is folded from the feed inlet to the discharge outlet; the length of the secondary valve positioned on the outer side is greater than that of the secondary valve positioned on the inner side, the length of the secondary valve plate positioned on the outer side is less than that of the secondary valve plate positioned on the inner side, and the length of the secondary valve plate positioned on the outer side is less than that of the secondary valve plate positioned on the inner side; inserting the mutually nested secondary valves into the folded main valve folding seam to form a nested relation, wherein the lengths of all the secondary valve plates are larger than that of the main valve plate.
Said
The main valve plate and the secondary valve are both valve plates in the valve cylinder.
The main valve and the secondary valve can be made of flexible materials such as paper, non-woven fabrics or other plastic polymers.
The two side wall surfaces of the valve cylinder feed port are firmly adhered to the bag body to prevent leakage, and the valve cylinder discharge port is arranged in the valve port bag and kept separated from the bag body.
The valve plate is annular and surrounds the inner wall of the valve barrel.
A plurality of folds are arranged in the width direction of the valve plate.
Two tail ends of the valve plate in the width direction are fixed on the valve cylinder.
A plurality of bulges are arranged at the overlapped part of the valve plates, so that a gap is reserved between the adjacent valve plates.
Has the advantages that:
1. the utility model discloses a valve port device uses on paper, mould or paper mould the combination valve bag for replace current valve port, be equipped with a plurality of valve blocks in the valve section of thick bamboo, can be many times, the multidimensional material that blocks leaks: the materials in the bag are extruded in multiple directions from outside to inside to close the valve barrel to realize primary sealing, the materials remained in the valve barrel and the materials extruded to enter the valve barrel are intercepted by the secondary valve plate to realize secondary sealing, and the gap between the secondary valve plate and the discharge hole of the valve barrel is filled with the materials to expand to further reduce the main channel of the valve port device to prevent the materials from leaking to realize tertiary sealing, so that the leakage of the materials is greatly relieved by the multi-layer and multi-dimensional sealing mode;
2. the current production and use equipment does not need to be changed, the cost is not increased or slightly reduced, the environment pollution caused by leakage can be reduced, and the loss caused by moisture can be reduced.
Drawings
FIG. 1 is an embodiment of the present invention;
FIG. 2 is a schematic diagram of the nesting of a primary valve and a secondary valve;
FIG. 3 is a schematic view of the primary and secondary valves of FIG. 2 after engagement;
FIG. 4 is a schematic view of the valve port assembly ready to be applied to a glue portion of a bag body;
FIG. 5 is a schematic view of the valve port device being fixed to the inner side of the bag body;
FIG. 6 is a schematic view of the valve port device being fixed to the outside of the bag body;
FIG. 7 is a schematic view of a reinforcement strip ready for application;
FIG. 8 is a schematic view showing that the reinforcement strip is completely attached.
The specific implementation mode is as follows:
as shown in fig. 1 to 8, a valve port device of a valve bag with a sealing function is hereinafter referred to as a valve port device. More than one valve plate 2 is arranged in the valve barrel 1, one end, facing the feed port of the valve barrel, of the valve plate 2 is fixed on the inner wall of the valve barrel, and one end, facing the discharge port, of the valve plate 2 is movably separated from the valve barrel.
The valve cylinder 1 comprises a main valve 11, and the main valve further comprises a main valve plate 111 folded from the feeding hole to the discharging hole.
For example, a valve plate 2 with a length larger than that of the main valve plate can be directly inserted into the folded main valve folding seam for fixing, so that a two-stage valve plate is formed from the inlet of the valve cylinder to the outlet.
The valve cylinder also comprises more than one secondary valve 12 which is nested with each other, and each secondary valve comprises a secondary valve plate 121 which is folded from the feed inlet to the discharge outlet; the length of the secondary valve positioned on the outer side is greater than that of the secondary valve positioned on the inner side, the length of the secondary valve plate positioned on the outer side is less than that of the secondary valve plate positioned on the inner side, and the length of the secondary valve plate positioned on the outer side is less than that of the secondary valve plate positioned on the inner side; inserting the mutually nested secondary valves into the folded main valve folding seam to form a nested relation, wherein the lengths of all the secondary valve plates are larger than that of the main valve plate.
The main valve plate and the secondary valve are both valve plates in the valve cylinder.
The main valve and the secondary valve can be made of flexible materials such as paper, non-woven fabrics or other plastic polymers.
The two side wall surfaces of the valve cylinder feed port are firmly adhered to the bag body to prevent leakage, and the valve cylinder discharge port is arranged in the valve port bag and kept separated from the bag body.
In practical application, the main valve and the secondary valve are formed in a folding mode, the production process is simple, and the production cost is low.
The valve port device at least comprises a main valve. If there is a secondary valve, the primary and secondary valves are preferably made of the same material in the same dimensions in order to reduce the procurement cost of the material.
According to the above rule, the multi-stage valve plate with the movable opening opposite to the feeding direction is formed by the mutual nesting of the plurality of secondary valves and the nesting of the nested secondary valves and the main valve. The feeding can not be influenced during feeding, and if the materials in the valve port bag flow outwards through the valve port device in the carrying process after the feeding is finished, the materials can be blocked by the multilayer valve plates from inside to outside layer by layer, so that the leakage of the materials in the carrying process is effectively reduced.
The main valve and the secondary valve can be made of flexible materials such as paper, non-woven fabrics or other plastic polymers.
It is generally preferred that the spout is located near the top or middle of the bottom of the bag.
The valve plate is annular and surrounds the inner wall of the valve barrel.
A plurality of folds are arranged in the width direction of the valve plate. Therefore, when materials enter the valve cylinder from inside to outside, the materials can enter the folds more easily to enlarge the folds, so that the passage of the valve cylinder is closed.
Two tail ends of the valve plate in the width direction are fixed on the valve cylinder. When materials enter the space between the valve plate and the inner wall of the valve barrel close to the discharge port from inside to outside, a powerful blocking port is formed more easily, and the materials are difficult to break through the heavy blocking port and flush out of the valve barrel.
The position that the valve block overlaps sets up a plurality of archs, makes to leave the space between the adjacent valve block, prevents to be sealed because of the space between the material extrusion leads to the valve block, ensures that the valve block can play the effect of blockking when the material flows outward.
The valve port bag is a valve port paper bag, a paper-plastic composite valve port bag, a PP or PE valve port bag.
The following is a specific embodiment, taking paper-based material as an example, making 390 x 375 x 100(mm) valve port paper bag, valve port length is 135mm valve set as an example, the utility model discloses a production process is (other materials and bag type are the same):
1. taking 70g of paper with the length and the width of 240X 180(mm), and firstly folding the paper into a main valve with the length and the width of 240X 135(mm) for standby;
2. taking 70g of paper with the length and the width of 240 x 180(mm), folding the paper at a position which is 30mm away from the 180mm side length into a secondary valve with the length and the width of 240 x 105(mm) for later use;
3. the secondary valve is placed into the main valve to be overlapped into a valve port base material with the length and width of 240 x 135(mm), 2 main valve plates and 2 secondary valve plates upwards, a lap joint adhesive tape with the width of 20mm and the length of 135mm is applied along the 135mm wide edge, the valve port base material is folded in half in a mode that the main valve is arranged inside the secondary valve, and the lap joint adhesive tape 4 is stuck and fixed to form a valve port device with the length and width of 135 x 100 (mm);
4. inserting the valve port device into the top of the valve port bag or the edge of one side of the bottom of the bag in a mode that the feeding hole faces outwards, and firmly adhering one surface, facing the inside of the valve port bag, of the valve port device from the feeding hole to a position which is about 50-60mm away from the feeding hole to the bag body;
5. the outward surface of the valve port device is firmly adhered with the folded edge at the top or the bottom of the bag from the part which is more than about 70-80mm away from the feed inlet to the part which is more than 10mm away from the discharge outlet.
In the practical application process, a paper sheet with the length and width of 240 × 90(mm) can be taken and directly placed in the main valve without being folded to serve as the secondary valve, a plurality of secondary valves can be manufactured in the above mode, even the secondary valve can be cancelled, only two valve plates on the main valve are reserved, as long as at least more than one reverse blocking valve plate is guaranteed on the inner wall of the valve barrel, and the method is specifically determined according to the needs.
The utility model provides a can prevent valve port device that material was revealed through multistage reverse valve block, the material gets into the valve bag from the feed inlet during canning, the material in the valve bag has a perpendicular ascending pressure extrusion valve section of thick bamboo feed inlet (the sealed principle of traditional valve port) after the canning, the material pressure extrusion discharge gate of a plurality of directions, multistage reverse valve block in the valve section of thick bamboo passageway further blocks the material and leaks, the time valve is held back because of the material and is taken place the inflation and further reduce and compress the main valve passageway, this kind of multiple levels, the sealed mode of multidimension degree can ensure that the material is difficult for leaking or leaking the minimizing.
The utility model discloses a valve port device need not in the use by hand folding, need not professional equipment, need not extra power consumption. The utility model discloses an adopt a flexible material for example wrapping paper, it is folding according to certain requirement respectively according to bag end width, then the intussusception of each other pastes firm formation valve port device with both ends again, makes main valve block and time valve block reverse arrangement be located inside to insert bag angle canning department according to the mode that the feed inlet was outwards to the valve port device, paste firmly valve port device and bag body again. Compare with other valve port device inner walls only a glossy section of thick bamboo wall, the utility model relates to a through setting up main valve block and time valve block, the canning is accomplished the back, to the material in the valve port bag or remain the material in the valve port passageway, the multilayer valve block is like the barb, can reverse stop many times, hold the holding material, but does not influence the outside-in canned material.
Different from the situation that the discharge port of other valve ports is fixed with the bag body and only receives one upward pressure of the material to close the valve port, the discharge port of the valve port device is not fixed with the bag body in an adhesion way, and the valve port device can bear the pressure of the material in multiple directions, so that the valve cylinder is more favorable, more sufficient and easier to close.
It can be seen that, the utility model discloses a be equipped with a plurality of valve blocks in the valve port device, can block the material leakage by multi-level, multidimension degree: the material in the bag is from outside to inside multidirectional extrusion messenger valve section of thick bamboo closure realization primary seal, the material that remains in the valve section of thick bamboo and the material that gets into the valve section of thick bamboo by the extrusion can be intercepted by inferior valve block and realize secondary seal, the gap between inferior valve block and the valve section of thick bamboo discharge gate has filled the main entrance that the material can expand and further reduce valve port device and has prevented the material leakage realization tertiary seal, the leakage of material has been alleviated greatly to this kind of multi-level, multidimension's sealing method, and can make the interior material avoid with external air contact, reach and prevent the material leakage, prevent the purpose that the material from weing.
This embodiment is merely illustrative of one of the manufacturing methods of the present invention, and is not to the limitations of the present invention, and the technical personnel in the technical field make various changes or substitutions within the essential scope of the present invention, and shall belong to the protection category of the present invention.
Claims (10)
1. The utility model provides a valve bag valve port device with sealing function which characterized in that: more than one valve plate (2) is arranged in the valve barrel (1), one end, facing the feed port of the valve barrel, of the valve plate (2) is fixed on the inner wall of the valve barrel, and one end, facing the discharge port, of the valve plate is movably separated from the valve barrel.
2. The valve port device of claim 1, wherein: the valve cylinder (1) comprises a main valve (11) and further comprises a main valve plate (111) which is folded from the feeding hole to the discharging hole.
3. The valve port device of claim 2, wherein: the valve cylinder also comprises more than one secondary valve (12) which is nested with each other, and each secondary valve comprises a secondary valve plate (121) which is folded from the feed inlet to the discharge outlet; the length of the secondary valve positioned on the outer side is greater than that of the secondary valve positioned on the inner side, the length of the secondary valve plate positioned on the outer side is less than that of the secondary valve plate positioned on the inner side, and the length of the secondary valve plate positioned on the outer side is less than that of the secondary valve plate positioned on the inner side; inserting the mutually nested secondary valves into the folded main valve folding seam to form a nested relation, wherein the lengths of all the secondary valve plates are larger than that of the main valve plate.
4. The valve port device of claim 3, wherein: the main valve plate and the secondary valve are both valve plates in the valve cylinder.
5. The valve port device of claim 2, wherein: the main valve and the secondary valve can be made of paper, non-woven fabrics or plastic polymers.
6. The valve port device of claim 1, wherein: the two side wall surfaces of the valve cylinder feed port are firmly adhered to the bag body to prevent leakage, and the valve cylinder discharge port is arranged in the valve port bag and kept separated from the bag body.
7. The valve port device of claim 1, wherein: the valve plate is annular and surrounds the inner wall of the valve barrel.
8. The valve port device according to claim 1 or 4, wherein: a plurality of folds are arranged in the width direction of the valve plate.
9. The valve port device of claim 8, wherein: two tail ends of the valve plate in the width direction are fixed on the valve cylinder.
10. The valve port device of claim 9, wherein: a plurality of bulges are arranged at the overlapped part of the valve plates, so that a gap is reserved between the adjacent valve plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022181825.1U CN213975212U (en) | 2020-09-29 | 2020-09-29 | Valve port bag valve port device with sealing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022181825.1U CN213975212U (en) | 2020-09-29 | 2020-09-29 | Valve port bag valve port device with sealing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213975212U true CN213975212U (en) | 2021-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022181825.1U Active CN213975212U (en) | 2020-09-29 | 2020-09-29 | Valve port bag valve port device with sealing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213975212U (en) |
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2020
- 2020-09-29 CN CN202022181825.1U patent/CN213975212U/en active Active
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