CN220843075U - Ton sack fast-assembling polyurethane gasbag - Google Patents

Abstract

The utility model belongs to the technical field of packaging machinery, and particularly relates to a ton bag opening fast-assembling polyurethane airbag which comprises an airbag body, wherein the airbag body is arranged below a feed opening of a ton bag machine, the airbag body comprises an inner polyurethane layer assembly and an outer polyurethane layer, an annular cavity is arranged between the inner polyurethane layer assembly and the outer polyurethane layer, the inner parts of the upper end and the lower end of the annular cavity are respectively wrapped with a first flange plate and a supporting ring, the inner polyurethane layer assembly comprises two polyurethane layers, an annular supporting frame is wrapped between the two polyurethane layers, the annular supporting frame is positioned between the first flange plate and the supporting ring, an air duct is connected to the outer part of the outer polyurethane layer, and the air duct is communicated with the annular cavity. Compared with the traditional rubber air bag, the polyurethane air bag adopted by the utility model has no dead angle, does not store powder, can be quickly disassembled and cleaned, is almost suitable for filling in all industries, has smaller required pressure, and does not break the ton bag mouth.

Description

Ton sack fast-assembling polyurethane gasbag

Technical Field

The utility model belongs to the technical field of packaging machinery, and particularly relates to a ton bag opening quick-mounting polyurethane airbag.

Background

When the materials are filled, the traditional charging mode is to sleeve the opening of the ton bag on the discharging pipe of the ton bag machine and tighten the opening by a clamp or a rope, but the clamp is likely to be clamped by hands of workers when the clamp is operated, and the opening of the ton bag is worn for a long time, so that the ton bag is wasted; in addition, when the material gets into ton bag, constantly there is the material to leak from ton bag mouth, and the material is with gaseous blowout, not only can cause the raw materials extravagant, pollutes workshop environment, and is huge to operation workman's health harm moreover, still probably causes the dust explosion risk in workshop simultaneously.

At present, rubber or silica gel air bags are adopted by manufacturers to serve as transitional connection between a blanking opening of a ton bag machine and a ton bag, and meanwhile, the ton bag opening can be clamped, for example, the air bag type opening clamping dust sealing device disclosed in China patent publication No. CN201249878Y is adopted, the ton bag opening is sealed after the air bags are inflated, but in actual use, dead layers are fixed once the rubber air bags are installed, dead layers are arranged between the air bags and stainless steel pipes and are difficult to clean, part of the air bags covered on the blanking pipe are stepped, powder is easy to store, if the air bags are food or medicinal powder, the quality of the whole batch of products is influenced, and the air bags are rarely used in the food and medicine industries; the air inflation pipeline is generally made of metal, and air leakage can occur after the air inflation pipeline is connected with the air bag made of rubber for a long time; in addition, rubber or silica gel materials are generally thicker, the required air pressure is larger, the control is difficult, the opening of the ton bag is easy to be broken, and the ton bag is wasted.

For this reason, improvements are needed.

Disclosure of utility model

Aiming at the defects in the prior art, the utility model provides a ton bag opening quick-assembly polyurethane airbag which comprises an airbag body, wherein the airbag body is arranged below a feed opening of a ton bag machine and is used for connecting the feed opening of the ton bag machine with the ton bag opening, the airbag body comprises an inner polyurethane layer assembly and an outer polyurethane layer which are penetrated up and down, the upper end and the lower end of the inner polyurethane layer assembly are respectively connected with the upper end and the lower end of the outer polyurethane layer into a whole, an annular cavity is arranged between the inner polyurethane layer assembly and the outer polyurethane layer, the inner parts of the upper end and the lower end of the annular cavity are respectively wrapped with a first flange plate and a supporting ring, the inner polyurethane layer assembly comprises two inner polyurethane layers, an annular supporting frame is wrapped between the two inner polyurethane layers, the annular supporting frame is arranged between the first flange plate and the supporting ring, the outer polyurethane layer is externally connected with an air duct, and the air duct is communicated with the annular cavity and can be fused with the outer polyurethane layer together to form a whole, and air leakage is avoided; in addition, the blanking opening of the ton bag machine is welded with a second flange plate matched with the first flange plate, the first flange plate of the air bag body can be fixedly connected with the second flange plate of the blanking opening through a fast-assembling clamp, and the fast-assembling clamp adopts the prior art.

Alternatively, both the inner polyurethane layer and the outer polyurethane layer employ a food grade polyurethane having a thickness of 1-2 mm.

In particular, food grade polyurethanes offer the advantage over traditional rubber, silicone rubber: firstly, the polyurethane material is of food and medicine grade, almost all industries can use the polyurethane material, and the polyurethane material is stronger, flexible, transparent and durable, and can not crack due to multiple inflation and deflation; secondly, the airbag made of polyurethane is equivalent to the extension part of the blanking pipe of the ton bag machine, and the diameters of the airbag and the extension part are basically consistent, and the airbag has no stepped structure, so that no dead angle exists, powder can not be hidden, and the airbag can be quickly disassembled and cleaned and can be also used in the food and medicine industries; thirdly, polyurethane is not as thick as rubber or silica gel, the required pressure is smaller, the pressure is easier to control, and the ton bag opening is not broken.

Alternatively, the support ring is a 304L stainless steel support ring.

Alternatively, the annular support frame is a 304L stainless steel tube.

Alternatively, the airway has a diameter of 6-12mm.

Specifically, the air duct is connected to an external air source, which may be a device such as an air compressor that is capable of providing air source pressure.

The utility model also comprises other components which can ensure that the ton bag mouth fast-assembling polyurethane air bag can be normally used, and the components are all conventional technical means in the field. In addition, the devices or components not defined in the present utility model are all conventional in the art.

The working principle of the utility model is that when in use, the first flange at the top end of the air bag body is fixedly connected with the second flange of the blanking port of the ton bag machine through the fast-assembling clamp, then the ton bag port is sleeved outside the air bag body from bottom to top, and then the air duct is used for ventilating the annular cavity of the air bag body, the outer polyurethane layer expands and bulges outwards after being inflated and supports the ton bag port until the ton bag port is clamped, the inner polyurethane layer is not expanded inwards due to the fixed limit of the annular supporting frame, the smooth internal smooth blanking is ensured, the blanking is started, and after the loading is finished, the air bag body is deflated, and the next working cycle is started.

Compared with the traditional silica gel and rubber air bags, the polyurethane air bag has the advantages that the structure is simple, the cost is low, no dead angle exists, powder can not be hidden, the polyurethane air bag can be quickly disassembled and cleaned, is almost suitable for filling in all industries, is stronger, flexible, transparent and durable, can not crack due to multiple inflation and deflation, and in addition, the required pressure is smaller, the pressure is easier to control, and the ton bag mouth can not be broken.

Drawings

The utility model will be further described with reference to the drawings and examples.

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is an enlarged schematic view of the structure of the portion a in fig. 1.

Fig. 3 is a schematic perspective view of an airbag body according to the present utility model.

Fig. 4 is a schematic partial structure of the ring support of the present utility model.

Fig. 5 is a schematic diagram of a ton port fast-assembling polyurethane airbag in practical use in an embodiment.

In the figure: 1. the air bag comprises an air bag body, a feed opening of a ton bag machine, a ton bag opening, an inner polyurethane layer assembly, an outer polyurethane layer, an annular cavity, a first flange plate, a supporting ring, an inner polyurethane layer, an annular supporting frame and an air duct, wherein the air bag body is composed of the following components, the lower part of the air bag body is provided with the feed opening of the ton bag machine, the ton bag opening is provided with the inner polyurethane layer assembly, the outer polyurethane layer is provided with the annular cavity, the first flange plate is provided with the annular cavity, the supporting ring is provided with the supporting ring, the inner polyurethane layer is provided with the supporting ring, the annular supporting frame is provided with the inner polyurethane layer, and the air duct is provided with the annular supporting frame and the air duct.

Detailed Description

The present utility model will now be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the utility model are shown, and in which embodiments of the utility model are shown. All other embodiments, modifications, equivalents, improvements, etc., which are apparent to those skilled in the art without the benefit of this disclosure, are intended to be included within the scope of this utility model.

Examples

As shown in fig. 1-4, the embodiment of the utility model provides a ton bag mouth fast-assembling polyurethane airbag, which comprises an airbag body 1, wherein the airbag body 1 is arranged below a feed opening 2 of a ton bag machine and is used for connecting the feed opening 2 of the ton bag machine with a ton bag mouth 3, the airbag body 1 comprises an inner polyurethane layer assembly 4 and an outer polyurethane layer 5 which are penetrated up and down, the upper end and the lower end of the inner polyurethane layer assembly 4 are respectively connected with the upper end and the lower end of the outer polyurethane layer 5 into a whole, an annular cavity 6 is arranged between the inner polyurethane layer assembly 4 and the outer polyurethane layer 5, the inner part of the upper end and the lower end of the annular cavity 6 is respectively wrapped with a first flange plate 7 and a supporting ring 8, and the supporting ring 8 can adopt 304L stainless steel supporting rings; the inner polyurethane layer assembly 4 comprises two inner polyurethane layers 9, an annular supporting frame 10 is wrapped between the two inner polyurethane layers 9, the annular supporting frame 10 is positioned between the first flange 7 and the supporting ring 8, the annular supporting frame 10 is a 304L stainless steel pipe, and the inner diameter of the stainless steel pipe is matched with the inner diameter of the feed opening 2 of the ton bag machine; the outside of the outer polyurethane layer 5 is connected with an air duct 11 with the diameter of 8mm, the air duct 11 is communicated with the annular cavity 6, the air duct 11 and the outer polyurethane layer 5 can be fused together to form a whole, air leakage is avoided, the air duct 11 is connected to an external air source during inflation, and the external air source can be equipment such as an air compressor and the like which can provide air source pressure; in addition, the second flange plate matched with the first flange plate 7 is welded at the position of the discharging opening 2 of the ton bag machine, and when the installation is fixed, the first flange plate 7 of the air bag body 1 and the second flange plate of the discharging opening can be fixedly connected together by using a fast-assembling clamp, wherein the fast-assembling clamp adopts the prior art.

The inner polyurethane layer 9 and the outer polyurethane layer 5 are made of food-grade polyurethane with the thickness of 1mm, and the food-grade polyurethane has the advantages that compared with the traditional rubber and silica gel: firstly, the polyurethane material is of food and medicine grade, almost all industries can use the polyurethane material, and the polyurethane material is stronger, flexible, transparent and durable, and can not crack due to multiple inflation and deflation; secondly, the airbag made of polyurethane is equivalent to the extension part of the blanking pipe of the ton bag machine, and the diameters of the airbag and the extension part are basically consistent, and the airbag has no stepped structure, so that no dead angle exists, powder can not be hidden, and the airbag can be quickly disassembled and cleaned and can be also used in the food and medicine industries; thirdly, polyurethane is not as thick as rubber or silica gel, the required pressure is smaller, the pressure is easier to control, and the ton bag mouth 3 is not broken.

The working principle of the utility model is that when in use, the first flange 7 at the top end of the air bag body 1 is fixedly connected with the second flange of the blanking port 2 of the ton bag machine through the fast-assembling clamp, then the ton bag port 3 is sleeved outside the air bag body 1 from bottom to top, then the air duct 11 is used for ventilating the annular cavity 6 of the air bag body 1, the outer polyurethane layer 5 expands and bulges outwards after being inflated and supports the ton bag port 3 until the ton bag port 3 is clamped, the inner polyurethane layer 9 does not expand inwards due to the fixed limit of the annular supporting frame 10, the inside is ensured to be smooth, the blanking is smooth, then the blanking is started, after the loading is finished, the air bag body 1 is deflated, and the next working cycle is started.

The embodiments of the present utility model have been described above, the description is illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims (5)

1. The utility model provides a ton sack fast-assembling polyurethane gasbag, includes the gasbag body, and the gasbag body sets up the below at the feed opening of ton bag machine for link together the feed opening of ton bag machine and ton sack, its characterized in that: the gasbag body is including interior polyurethane layer subassembly and the outer polyurethane layer that link up from top to bottom, and the upper and lower both ends of interior polyurethane layer subassembly are connected into an organic wholely with the upper and lower both ends on outer polyurethane layer respectively, be provided with the annular chamber between interior polyurethane layer subassembly and the outer polyurethane layer, and the inside parcel at the upper and lower both ends of annular chamber has first ring flange and holding ring respectively, interior polyurethane layer subassembly includes two in-layer polyurethane layer, the parcel has annular support frame between the polyurethane layer in the two layers, and annular support frame is located between first ring flange and the holding ring, the external connection on outer polyurethane layer has the air duct, and the air duct is linked together with the annular chamber.

2. The tonne-bag-mouth quick-assembly polyurethane airbag according to claim 1, wherein: the inner polyurethane layer and the outer polyurethane layer are both made of food-grade polyurethane with the thickness of 1-2 mm.

3. The tonne-bag-mouth quick-fit polyurethane airbag according to claim 2, wherein: the support ring adopts a 304L stainless steel support ring.

4. The tonne-bag-port quick-fit polyurethane airbag according to claim 3, wherein: the annular support frame adopts 304L stainless steel pipe.

5. The tonne-bag-port fast-assembling polyurethane airbag according to claim 4, wherein: the diameter of the air duct is 6-12mm.