CN217731292U

CN217731292U - Automatic closed type sealing mechanism for valve bag feed opening breathable leakage-proof material

Info

Publication number: CN217731292U
Application number: CN202222118828.XU
Authority: CN
Inventors: 黄永根
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-08-11
Filing date: 2022-08-11
Publication date: 2022-11-04
Anticipated expiration: 2032-08-11

Abstract

The utility model relates to an automatic closed sealing mechanism for a valve bag feed opening ventilation and leakage prevention, which comprises a sealing barrel with openings at two ends, wherein one port of the sealing barrel is connected with an inner opening barrel which is of a flexible ventilation dust filtration structure; the utility model relates to a ventilative leak protection of valve port bag feed opening material seals mechanism with automatic closed type has and reduces the material and leak from feed opening department when valve port bag loads the material and finishes to guarantee that valve port bag can normally carminative advantage from feed opening department.

Description

Automatic closed type sealing mechanism for valve bag feed opening breathable leakage-proof material

Technical Field

The utility model relates to a valve bag technical field especially relates to a valve bag feed opening is ventilative leak protection material and is sealed mechanism with automatic closed type.

Background

The valve bag, commonly called as a bottom pasting bag, is an international popular packaging bag, is fed from a top or bottom valve port (namely a feed opening), is filled with materials by adopting special filling equipment to form a square body, is orderly stacked and attractive, and belongs to an environment-friendly bag. The valve bag is mainly used for packaging powdery or granular solid materials and flexible articles such as edible powder, chemical fertilizer, synthetic materials, explosive, grains, salt, mineral substances and the like.

When powder materials are packaged, the putty powder is packaged as an example, after each bagging is completed, when the feeding pipe is drawn out from the feeding port, the feeding pipe drives the feeding pipe, air pressure changes exist inside and outside the feeding port of the valve bag, more powder can be sprayed out, the powder is wasted, and the sprayed powder can influence the physical health of workers in a workshop.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome not enough among the prior art, provide a ventilative leak protection of valve port bag feed opening material seals mechanism with automatic closed type to the valve port bag who solves among the prior art can't tighten up automatically when the unloading pipe is taken out, can spout the problem of a lot of materials.

The utility model discloses a realize through following technical scheme: the utility model provides a valve bag feed opening is ventilative leak protection material and is used automatic closed type sealing mechanism, includes both ends open-ended sealing barrel, be connected with interior mouthful of section of thick bamboo on one port of sealing barrel, interior mouthful of section of thick bamboo is the ventilative dust filtering structure of flexibility.

Furthermore, a counterweight plate is arranged at one end of the inner opening cylinder, which is far away from the sealing cylinder.

Further, the counterweight plate is positioned on the outer side surface of the inner opening cylinder.

Further, the counterweight plate is of a belt-shaped structure and is fixed on the inner opening cylinder along the left-right direction.

Furthermore, there are two counter weight pieces, and two counter weight pieces are located respectively on the up end and the lower terminal surface of interior mouthful of section of thick bamboo.

Furthermore, a balancing weight is arranged on the balancing weight piece.

Furthermore, the balancing weight is located on the balancing weight piece and close to the two ends.

Furthermore, a glue coating layer is arranged at one end, far away from the sealing barrel, of the inner opening barrel, and the glue coating layer is of an annular structure.

Further, the inner side of the sealing cylinder is provided with a film lining.

Further, the inner opening tube is made of tencel cloth.

The beneficial effects of the utility model reside in that: an automatic closed type sealing mechanism for air-permeable and leak-proof materials of a feed opening of a valve bag is characterized in that a sealing cylinder is arranged in the feed opening of the valve bag, the outer surface of the sealing cylinder is adhered to the inner surface of the feed opening in an adhesive manner or hot-pressed manner (or can be integrally formed with the feed opening of the valve bag in actual production), and one end with an inner opening cylinder faces the inner side of the valve bag; during the unloading, in the unloading pipe penetrates the unloading mouth, the unloading pipe penetrates in sealing a section of thick bamboo promptly, when the unloading pipe meets an interior mouthful section of thick bamboo, prop open an interior mouthful section of thick bamboo, penetrate the valve pocket inboard and carry out the unloading, when the unloading is accomplished, the unloading pipe is taken out from sealing a section of thick bamboo, when the unloading pipe leaves an interior mouthful section of thick bamboo, the automatic closure of port and the nature flagging of a section of thick bamboo one end of sealing is kept away from to an interior mouthful section of thick bamboo, reach the effect closed and buckle, thereby prevent that the powder is when taking the unloading pipe out, reveal from the unloading mouth, moreover, the steam generator is simple in structure, and it is effectual to prevent revealing.

Drawings

FIG. 1 is a schematic view showing the opening effect of the overall structure of embodiment 1;

FIG. 2 is a second schematic view showing the expanding effect of the overall structure of embodiment 1;

FIG. 3 is a schematic view showing a closing effect of the inner spout of embodiment 1;

FIG. 4 is a schematic view of the paving effect of the present mechanism of example 1;

fig. 5 is a schematic view showing the drooping effect of the inner spout of embodiment 1.

Wherein: 1. a sealing cylinder; 2. an inner port tube; 3. a weight plate; 4. and a balancing weight.

Detailed Description

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

As shown in fig. 1-4, an automatic closed sealing mechanism for a valve bag feed opening air-permeable leak-proof material comprises a sealing cylinder 1 with openings at two ends, wherein the sealing cylinder 1 and an inner opening cylinder 2 are both of cylindrical structures with openings at two ends, and the sealing cylinder 1 can be made of kraft paper or multilayer kraft paper;

an inner opening tube 2 is connected to one end opening of the sealing tube 1, an adhesive process can be selected, the inner opening tube 2 is adhered to the outer side of the sealing tube 1, namely, the inner side of the inner opening tube 2 is fixedly connected with the outer side of the sealing tube 1 in an adhesive mode, the inner opening tube 2 is of a flexible air-permeable dust filtering structure, the inner opening tube 2 can be automatically closed after the blanking tube is drawn out, the blanking tube naturally sags, meanwhile, the air-permeable dust filtering structure still has an air exhaust effect after the inner opening tube sags, air in a valve port bag can be conveniently exhausted, the opposite side of the valve port bag can be conveniently used, and powder leakage can be prevented while air permeability is achieved;

the inner opening tube 2 is made of tencel cloth, the tencel cloth is made of tencel fabric, the tencel fabric has the effects of being good in stability, smooth, soft, air-permeable, dust-filtering and heat-resistant, and is not prone to being influenced by high temperature and ageing when materials are stacked for a long time under the condition of hot weather.

One end of the inner opening cylinder 2, which is far away from the sealing cylinder 1, is bonded with a counterweight sheet 3, the counterweight sheet 3 is used for assisting the inner opening cylinder 2 to naturally droop, and the tencel is taken as an example, and is particularly light in addition to the characteristics, so that when the blanking pipe is drawn out, the tencel floats under the influence of airflow flowing from the inner side of the valve pocket to the outer side at a certain probability, and cannot quickly droop to achieve a closing effect, so that a dust filtering effect is influenced; the inner opening cylinder 2 is rolled into the sealing cylinder 1 under the influence of the air flow flowing from the inner side of the valve bag to the outer side and the driving action of the blanking pipe with a certain probability, and the inner opening cylinder 2 is also rolled with the wrinkle condition, so that the inner opening cylinder cannot be automatically closed, and the dust filtration effect is influenced;

after installing the weight stack 3, the weight stack 3 can increase the weight of the end of the inner tube 2 far away from the sealing tube 1, so as to reduce the influence of the air flow, meanwhile, the rigidity of the weight stack 3 is stronger than that of the inner tube 2, so as to reduce the conditions of the inner tube 2 that is curled and folded, and reduce the probability of the inner tube 2 being curled into the inner side of the sealing tube 1, here, according to the practical experimental result, the weight stack 3 can be selected from kraft paper, of course, other material structures can be selected, such as plastic sheets, metal sheets, etc., and the kraft paper is taken as an example in the embodiment in consideration of purchasing cost, processing cost and processing difficulty.

The counterweight plate 3 is positioned on the outer side surface of the inner opening cylinder 2, when the counterweight plate 3 is positioned on the inner side surface of the inner opening cylinder 2, the speed of the feeding pipe entering the sealing cylinder 1 and the inner opening cylinder 2 is high, so when the feeding pipe penetrates from the inner side of the inner opening cylinder 2 and the end part of the feeding pipe is in contact with the counterweight plate 3, the counterweight plate 3 collides with the feeding pipe when changing from a natural sagging state to a horizontal state due to the self-structure and inertia problems, and the counterweight plate may drive the inner opening cylinder 2 to be torn when being serious; when the counterweight plate 3 is positioned on the outer side surface of the inner opening cylinder 2, the problem can be effectively avoided;

in order to further improve the smoothness of the blanking pipe when the blanking pipe is contacted with the counterweight plate 3, the edge of the pipe orifice of the blanking pipe can be rounded.

The weight plate 3 is a strip-shaped structure, the weight plate 3 is fixed on the inner opening tube 2 along the left-right direction in an adhesive manner, as shown in fig. 1-4, the structural strength of the strip-shaped kraft paper is obviously enhanced compared with the inner opening tube 2 made of tencel material, the weight is obviously increased, the inner opening tube 2 can be effectively prevented from curling under the condition of increasing the weight of the inner opening tube 2 and improving the sagging effect by taking the strip-shaped kraft paper as an example.

The two counterweight plates 3 are respectively fixed on the upper end surface and the lower end surface of the inner opening cylinder 2 in an adhesive manner, theoretically, the sealing cylinder 1 and the inner opening cylinder 2 are of a cylindrical structure, and no obvious boundary exists between the upper end surface and the lower end surface when the structure is horizontally placed, actually, when the structure is positioned in a feed opening of a valve bag, the valve bag is in a flat and stacked state before charging, and when charging is needed, equipment grabs the valve bag to enable the valve bag to be in an upright state, meanwhile, the feed opening is positioned at the top of the valve bag, and then a feed pipe penetrates into the feed opening to be filled; in this case, when the closure cylinder 1 and the inner port cylinder 2 are flattened and stacked together with the valve bag, the mechanism is also in a flattened state, as shown in fig. 4 in particular, in this practical case, the closure cylinder 1 and the inner port cylinder 2 can be divided into an upper end surface and a lower end surface, so that the two weight plates 3 are fixed on the upper end surface and the lower end surface of the inner port cylinder 2;

two balance weight pieces 3 at this moment, except playing the counter weight, the effect of preventing the crimple, when unloading pipe struts two balance weight pieces 3 from the centre, two balance weight pieces 3 take place the little deformation effect that the centre hunches, and after the unloading pipe was taken out, balance weight piece 3 with the kraft paper as example, still have the elastic deformation effect of recovering from original dress, when the reconversion, balance weight piece 3 drives the port edge reconversion of interior mouthful section of thick bamboo 2, the closure state of paving promptly, compare in the closure state that has the fold, this kind of closure state of paving has the better effect that prevents the dust and reveal from the gap.

Be equipped with balancing weight 4 on the balancing weight piece 3, the use of balancing weight 4 is decided according to the selection of balancing weight piece 3, for example, when the kraft paper is chooseed for use to balancing weight piece 3, in order to further strengthen flagging effect, can increase balancing weight 4, and balancing weight 4 can be the iron sheet here, the sheet rubber, and during other material counter weight structures, also can choose not to increase balancing weight 4, in this embodiment in order to increase balancing weight 4, and balancing weight 4 is the iron sheet for example, balancing weight 4 is convenient for guarantee that interior mouthful section of thick bamboo 2 is smooth and flagging fast.

The balancing weight 4 is located the position that is close to both ends on the balancing weight piece 3, as the position shown in fig. 3, because the external diameter of unloading pipe generally is less than (even far less than) the internal diameter of feed opening, so when unloading pipe struts the balancing weight piece 3, make from the intermediate position of balancing weight piece to strut to upper and lower both sides, be close to the position at both ends about the balancing weight piece 3 more, less with the contact of unloading pipe, can effectively avoid taking place to collide with between balancing weight 4 and the unloading pipe 3.

The end, far away from the sealing barrel 1, of the inner opening barrel 2 is provided with a glue coating layer which is of an annular structure, the glue coating layer of the annular structure is similar to the structures of the two balance weight pieces 3, but compared with the balance weight pieces 3, glue can directly permeate into the inner opening barrel 2 made of tencel materials, the combination is firmer, and a solid structure after the glue is solidified has structural strength and weight advantages compared with the inner opening barrel 2 made of the tencel materials, so that the effects of preventing wrinkles and assisting in drooping are achieved;

the inboard sticky of a sealing section of thick bamboo 1 has the film inside lining, and the film can select valve pocket common thin film materials such as PE, and the surface is smooth, and the unloading pipe of being convenient for passes through, reduces a sealing section of thick bamboo 1 and leads to by the torn risk of unloading pipe because the coefficient of friction of internal surface is big, also can directly select tectorial membrane kraft paper certainly, film and kraft paper integrated into one piece, and structural strength is high, and it is better to reduce the friction effect.

The working principle is as follows: when the valve bag is clamped on a charging device, the state of the mechanism is as shown in figure 4, when the charging pipe penetrates into the charging hole, the opening cylinder 1 is firstly opened, then the inner opening cylinder 2 is opened, and as shown in figure 1, the charging pipe enters into the valve bag and is filled with powder; after the filling is finished, the feeding pipe is drawn out, when the feeding pipe leaves the counterweight plate 3, the counterweight plate 3 starts to drive the edge of the inner opening cylinder 2 to restore to the original shape, naturally close and start to droop, when the feeding pipe leaves the inner opening cylinder 2, the inner opening cylinder 2 is closed and droops, as shown in fig. 5, when the feeding pipe leaves the inner opening cylinder 2, the space in the valve bag cannot be completely filled, so that the space of the inner opening cylinder 2 at the top of the bag body still droops, and the powder is prevented from being discharged through the feeding opening through the inner opening cylinder 2;

in the transportation and stacking processes, the inner opening cylinder 2 is extruded by materials, the automatic opening is basically avoided, the leakage of the materials cannot be generated, the valve bag needs to have a good exhaust effect in the transportation and stacking processes, and the gas discharge is not influenced when the powder leakage is placed in the inner opening cylinder 2, so that the normal use of the valve bag is ensured.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a valve bag feed opening is ventilative leak protection material and is sealed mechanism with automatic closed type, includes both ends open-ended sealing barrel (1), its characterized in that, be connected with interior mouthful of section of thick bamboo (2) on a port of sealing barrel (1), interior mouthful of section of thick bamboo (2) are flexible ventilative dust filter structure.

2. The automatic closing type sealing mechanism for the air permeability and leakage prevention of the valve bag feed opening is characterized in that a counterweight plate (3) is arranged at one end, far away from the sealing barrel (1), of the inner opening barrel (2).

3. The automatic closing type sealing mechanism for the air permeability and leakage prevention of the valve bag feed opening is characterized in that the counterweight plate (3) is positioned on the outer side surface of the inner opening cylinder (2).

4. The automatic closing type sealing mechanism for the air permeability and leakage prevention of the valve bag feed opening according to claim 2 is characterized in that the weight plate (3) is of a belt-shaped structure, and the weight plate (3) is fixed on the inner opening tube (2) in the left-right direction.

5. The automatic closing type sealing mechanism for the air permeability and leakage prevention of the valve bag feed opening is characterized in that the number of the weight plates (3) is two, and the two weight plates (3) are respectively positioned on the upper end face and the lower end face of the inner opening tube (2).

6. The automatic closing type sealing mechanism for the air permeability and leakage prevention of the valve bag feed opening is characterized in that a balancing weight (4) is arranged on the balancing weight piece (3).

7. The automatic closing type sealing mechanism for the air permeability and leakage prevention of the valve bag feed opening according to claim 6, wherein the balancing weight (4) is located on the balancing weight (3) near two ends.

8. The automatic closing type sealing mechanism for the air permeability and leakage prevention of the valve bag feed opening is characterized in that a glue coating layer is arranged at one end, far away from the sealing barrel (1), of the inner opening barrel (2), and the glue coating layer is of an annular structure.

9. The automatic closing type sealing mechanism for the air permeability and leakage prevention of the valve bag feed opening is characterized in that a film lining is arranged on the inner side of the sealing cylinder (1).

10. The automatic closing type sealing mechanism for the air permeability and leakage prevention of the valve bag feed opening is characterized in that the inner opening cylinder (2) is made of tencel cloth.