CN112048893B

CN112048893B - Connecting method and connecting structure for aerogel felt cloth

Info

Publication number: CN112048893B
Application number: CN202010948215.1A
Authority: CN
Inventors: 刘景松; 莫伟军; 陈强
Original assignee: Shandong Xinlanghua Technology Co ltd
Current assignee: Shandong Xinlanghua Technology Co ltd
Priority date: 2020-09-10
Filing date: 2020-09-10
Publication date: 2022-08-12
Anticipated expiration: 2040-09-10
Also published as: CN112048893A

Abstract

The application discloses a connecting method and a connecting structure for aerogel felt cloth, wherein a rectangular cloth piece with the same width as the aerogel felt cloth is utilized, and the end parts of the rectangular cloth piece and the aerogel felt cloth which are overlapped are connected through a staple by penetrating through a stapler through a notch on the rectangular cloth piece. The rectangular cloth piece can be made of common cloth, and the cost can be almost ignored. And the rectangular cloth piece made of the cloth has both strength and flexibility, and can easily pass through the gap between the rollers in the glue hanging groove. In addition, this application passes the rectangle cloth that has the breach through the stitcher, can couple together the tip that rectangle sheet of cloth and aerogel felt overlap through the staple, connects and dismantles the convenience, low cost, easy and simple to handle.

Description

Connecting method and connecting structure for aerogel felt cloth

Technical Field

The application relates to the technical field of heat insulation materials, in particular to equipment for manufacturing a heat insulation felt containing silicon dioxide aerogel, and particularly relates to a connecting method and a connecting structure for aerogel felt cloth.

Background

The silica aerogel is a novel heat insulation material with low density, porosity and high porosity. Silica aerogels are typically prepared chemically from silicon source materials. The finished product of the silicon dioxide aerogel has a three-dimensional nano network structure, has high specific surface area, high porosity, low density, low refractive index, low thermal conductivity, low dielectric constant and other excellent performances, and is particularly suitable for serving as a heat insulation material.

CN 206996960U discloses a soaking and coating device for producing aerogel composite heat insulation felt, which comprises a frame, wherein the upper end of the frame is provided with a high-position supporting surface and a bottom-position supporting surface which are arranged in front and at back; a fibrofelt supporting and unreeling device is arranged above the low-position supporting surface, and a material-homogenizing press roller device and a material guide roller are arranged above the high-position supporting surface after material soaking which is arranged in the front-back direction; a material storage tank is arranged in the rack below the material homogenizing and pressing roller device, and a material pressing roller which is arranged on the rack and can be adjusted up and down is arranged in the material storage tank; the homogenizing opposite-pressing roller device comprises a driving homogenizing pressing roller, a follow-up homogenizing pressing roller and two supporting frames, wherein the driving homogenizing pressing roller, the follow-up homogenizing pressing roller and the two supporting frames are arranged at the front end and the rear end of the homogenizing opposite-pressing roller device and are used for supporting the two homogenizing pressing rollers, the driving homogenizing pressing roller is connected with a power source in a driving mode, the follow-up homogenizing pressing roller is supported on the two supporting frames in a front-rear adjustable mode, and a space for the soaked fiber felt to penetrate is reserved between the two homogenizing pressing rollers.

This prior art's fibrofelt is through the blowing, in the feed liquid of storage silo is soaked to guide such as compression roller device via nip roll, mixing to hang aerogel colloidal substance on fibrofelt surface, hang the fibrofelt that has aerogel colloidal substance after the drying, just can make the thermal-insulated felt that contains silica aerogel.

The fiber mat used as the aerogel carrier is typically 5-20 mm thick, with the thicker the fiber mat, the more aerogel can be adsorbed, and of course the higher the cost. The fiber mats are typically purchased rolls of fiberglass mat. In the process of rubberizing, after a roll of felt cloth emptying, need to pass the pressure roll of storage tank, the even material to compression roller device etc. again the end of a roll of new felt cloth, it is very troublesome to operate.

Disclosure of Invention

The technical problem to be solved by the present application is to provide a connecting method and a connecting structure for aerogel blankets, so as to reduce or avoid the aforementioned problems.

In order to solve the technical problem, the present application provides a connection method for an aerogel felt, which is used for connecting the ends of the aerogel felt of a receiving roll and a releasing roll with the same width so as to continuously pass through a glue hanging groove in a whole, wherein the method comprises the following steps: providing a rectangular cloth piece, wherein the width of the rectangular cloth piece is the same as that of the aerogel felt cloth, and a plurality of notches are arranged on the rectangular cloth piece at equal intervals; before the tail end of the aerogel felt of the material receiving roll is pulled through an inlet of the glue hanging groove, the tail end of the aerogel felt of the material receiving roll and the head of the aerogel felt of the material discharging roll are respectively overlapped with two ends of the rectangular cloth piece; penetrating a stapler through the notch, and then connecting the overlapped ends of the rectangular cloth piece and the aerogel felt cloth through a staple, so that the aerogel felt cloth of the material roll and the material roll is connected into a whole through the rectangular cloth piece; winding the aerogel felt cloth which is connected into a whole by operating the material collecting roll, so that the end part of the aerogel felt cloth of the material discharging roll is pulled from the inlet of the glue hanging groove to pass through the outlet of the glue hanging groove; removing the staples, and removing the rectangular cloth piece for cyclic utilization; and simultaneously, the wound material receiving roll is removed, and the end part of the continuous discharging roll is fixed on the reel of a new material receiving roll.

In addition, this application still provides a connection structure for aerogel felt for with the same receipts of width material book and the aerogel felt of roll of blowing end connection get together to continue to become whole and pass the glue hanging groove, wherein, connection structure include with a rectangle cloth that aerogel felt's width is the same, the both ends of rectangle cloth are used for connecting respectively receive the tip of the aerogel felt of roll of material and roll of blowing, equidistant a plurality of notches that are provided with on the rectangle cloth, the notch is used for passing the stapler in order to connect the rectangle cloth with the tip that aerogel felt overlapped up is linked together through the staple.

Preferably, the incisions are arranged in parallel with each other, and the length direction of the incisions is perpendicular to the side line of the connecting end portion of the rectangular cloth piece.

Preferably, a row of the slits is provided adjacent to both ends of the rectangular cloth piece.

Preferably, the incisions are all equal in length.

Preferably, only one row of the slits is provided between both ends of the rectangular cloth piece.

Preferably, reinforcing strips for preventing tearing are sewn at both ends of the rectangular cloth piece.

The rectangular cloth piece can be made of common cloth, and the cost can be almost ignored. And the rectangular cloth piece made of the cloth has both strength and flexibility, and can easily pass through the gap between the rollers in the glue hanging groove. In addition, this application passes the rectangle cloth that has the breach through the stitcher, can couple together the tip that rectangle sheet of cloth and aerogel felt overlap through the staple, connects and dismantles the convenience, low cost, easy and simple to handle.

Drawings

The drawings are only for purposes of illustrating and explaining the present application and are not to be construed as limiting the scope of the present application. Wherein the content of the first and second substances,

FIG. 1 is a schematic diagram showing a process of producing an aerogel thermal insulation blanket using an aerogel blanket through a kiss-coating bath according to one embodiment of the present application;

FIG. 2 is a schematic illustration showing a joining process of an aerogel blanket according to another embodiment of the present application;

FIG. 3 is a schematic view of an aerogel blanket attachment structure according to yet another embodiment of the present application.

Detailed Description

In order to more clearly understand the technical features, objects, and effects of the present application, embodiments of the present application will now be described with reference to the accompanying drawings. Wherein like parts are given like reference numerals.

In view of the problems of the prior art, the present application provides a connecting method and a connecting structure for an aerogel blanket, as shown in fig. 1 to 3. The connection method and the connection structure of the present application can be used to connect the ends of the aerogel felt cloth 1 of the receiving roll 205 and the releasing roll 201 with the same width to be connected to pass through the glue hanging slot 100 as a whole. The present application can produce the thermal insulation blanket containing silica aerogel through the kiss-coating bath 100 using the aerogel blanket 1 of the stock roll 205 and the stock roll 201.

Fig. 1 is a schematic structural diagram showing a process of producing an aerogel thermal insulation blanket through a rubberizing groove by using an aerogel blanket according to an embodiment of the present application. In fig. 1, a supply roll 201 and a collection roll 205 are shown around which the aerogel blanket 1 is wound. After the aerogel blanket 1 is unwound from the supply roll 201, it is wound up by the reel of the empty take-up roll 205, so that the aerogel blanket 1 on the supply roll 201 and the take-up roll 205 are substantially the same blanket and have the same width. The aerogel felt cloth 1 on the material placing roll 201 is threaded on various rollers (not shown in the figure) in the glue hanging groove 100, and then is wound by the material receiving roll 205 to be drawn forward, so that the aerogel felt cloth 1 continuously passes through the feed liquid containing aerogel colloidal substances in the glue hanging groove 100, and then the aerogel felt cloth 1 is hung with the aerogel colloidal substances, and after the aerogel felt cloth 1 hung with the aerogel colloidal substances is dried, the heat insulation felt containing silica aerogel can be prepared.

The aerogel felt cloth 1 of the present application can be any existing material for producing aerogel heat insulation felt, and for example, a commercially available glass fiber felt cloth with a thickness of 5-20 mm and a width of 1-3 m can be selected according to different heat insulation requirements. The glass fiber felt has the characteristics of low cost, heat resistance, fluffy fiber and corrosion resistance, and is convenient for attaching colloidal substances inside and outside the fiber in a soaking mode.

As described in the background art, if one roll of the aerogel felt 1 is used up during the coating process, the end of a new roll of the aerogel felt 1 needs to be passed through the roller of the coating bath 100 again. In order to improve the production efficiency, the application provides a connecting method and a connecting structure for aerogel felt, which are specifically shown in fig. 2 to 3.

The basic idea of the application is as follows: when one roll of aerogel felt 1 blowing is about to be used up, before the end of this roll of aerogel felt 1 is pulled through the entrance of the rubberizing groove 100 by the material receiving roll 205, provide a rectangular cloth piece 2 the same as the width of the aerogel felt 1, connect the end of the aerogel felt 1 of the material receiving roll 205 and the head of the aerogel felt 1 of a new roll of material receiving roll 201 respectively through the rectangular cloth piece 2, utilize the end of the material receiving roll 205 to pull the rectangular cloth piece 2, and then pull the head of the material receiving roll 201 through the rectangular cloth piece 2, thereby pull the aerogel felt 1 of the material receiving roll 201 through the rectangular cloth piece 2 and pass through the rubberizing groove 100, so that the trouble of rethreading the aerogel felt 1 in the rubberizing groove 100 can be saved, the erosion injury of the feed liquid to the operating personnel is lightened, the labor intensity is reduced, and the production efficiency is improved. After the head of the aerogel felt 1 of a new roll 201 of the coil passes through the outlet of the glue hanging groove 100, the rectangular piece of cloth 2 can be detached for recycling. The aerogel blanket 1 passing through the glue applying bath 100 continues to be wound on the reel of an empty receiving roll 205 on which the head of the aerogel blanket can be wound.

In carrying out the above concept, it is desirable to provide a suitable material and a quick way to connect the ends of the aerogel blanket 1 of the receiving roll 205 and the releasing roll 201 to the rectangular sheet 2.

For example, if two clamping plates are used to clamp the overlapping ends, additional screws or the like are required to connect the clamping plates, and the screws and clamping plates lack flexibility and cannot pass through the gaps in the rubberizing grooves 100. The present application thus chooses to use a rectangular piece of cloth 2 having the same width as the aerogel blanket 1, the two ends of the rectangular piece of cloth 2 being used to connect the ends of the aerogel blanket 1 of the roll 205 and the roll 201, respectively. This is because the rectangular cloth piece 2 can be made of ordinary cloth, and the cost can be almost ignored. And the rectangular cloth piece 2 made of cloth has both strength and flexibility and can easily pass through the gap between the rollers in the glue hanging groove 100. Rectangular cloth piece 2 the same with 1 width of aerogel felt can make whole width can both be connected, avoids marginal portion to block to tear.

Another problem is the manner of connection. For example, if sewing with a sewing machine, a normal household sewing machine cannot sew such a wide size, and on the other hand, the procurement cost of using an industrial sewing machine is high, and an additional factory building, an operation space, and a training of qualified operating staff are required. The manner of sewing by hand is too inefficient. Moreover, after the end of the aerogel felt 1 of the material roll 205 passes through the glue hanging groove 100, the connecting end needs to be conveniently cut off again, and the sewing scheme is troublesome to remove.

In order to enable efficient attachment and detachment, the present application chooses to use the stapler 3 for attachment. However, as is well known, the depth of the stapling opening of a conventional stapler 3 is limited, and only the edge portions can be connected, and the stapler 3 in the middle portion does not reach enough. In order to solve the problem of connection of the intermediate portion, the present application provides a plurality of slits 21 at equal intervals in the rectangular cloth piece 2, and these slits 21 are used to connect the end portions of the rectangular cloth piece 2 and the aerogel blanket 1, which are overlapped, by a staple, through the stapler 3.

If the end portions of the overlapped aerogel mats 1 are directly bound by the stapler 3 instead of the rectangular cloth pieces 2 of the present application, it is also necessary to form slits in the aerogel mats 1. However, the aerogel felt 1 needs to be made of a fiber fluffy material so as to be convenient for hanging enough aerogel to provide a good heat preservation and insulation effect. However, the strength of the fluffy material like the glass fiber felt is not good enough, the fluffy material is easy to tear and break in the drawing process after the cut is formed, even if the fluffy material is not broken, the heat preservation and insulation effect of the aerogel felt cloth 1 after the cut is not good, an additional process is needed to cut the fluffy material, the operation is more troublesome, the material waste is caused, and the cost is lower than that of the rectangular cloth piece, and the operation is simple and convenient.

In the illustrated embodiment, the slits 21 are preferably arranged parallel to each other, and the length direction of the slits 21 is preferably perpendicular to the edge line of the connecting end portion of the rectangular fabric piece 2. In the embodiment shown in fig. 2, a row of slits 21 is provided adjacent to both ends of the rectangular sheet 2. In the embodiment shown in fig. 3, only one row of slits 21 is provided between the two ends of the rectangular piece of cloth 2. It is further preferred that the slits 21 are of equal length for ease of manufacture and handling.

In addition, in order for the stapler 3 to pass through the slit 21 to reach the overlapped joining position for stapling, the top of the slit 21 approaches the edge of the rectangular cloth piece 2, which causes the edge portion of the rectangular cloth piece 2 to be weakened and easily torn during pulling. In another embodiment of the present application, therefore, a reinforcing strip 22 for preventing tearing is sewn to both ends of the rectangular cloth piece 2.

The aerogel blanket joining method of the present application will be described in further detail below with reference to the accompanying drawings. As shown in the drawings, the aerogel blanket joining method of the present application can be used to join the ends of the aerogel blankets 1 of the receiving roll 205 and the discharging roll 201, which have the same width, to be sequentially passed through the glue hanging slot 100 as a whole, and the method includes the following steps:

first, a rectangular cloth piece 2 is provided, the rectangular cloth piece 2 has the same width as the aerogel blanket 1, and a plurality of slits 21 are provided at equal intervals on the rectangular cloth piece 2.

Then, the end of the aerogel felt 1 of the receiving roll 205 and the head of the aerogel felt 1 of the discharging roll 201 are overlapped with both ends of the rectangular sheet 2, respectively, before the end of the aerogel felt 1 of the receiving roll 205 is pulled through the inlet of the rubberizing groove 100.

Thereafter, the stapler 3 is passed through the slit 21, and then the overlapped ends of the rectangular cloth piece 2 and the aerogel blanket 1 are connected by the staple, so that the aerogel blanket 1 of the material roll 205 and the material roll 201 is continued as a whole by the rectangular cloth piece 2. Of course, the two side edge portions of the overlapped end portions of the rectangular cloth piece 2 and the aerogel felt cloth 1 can be directly bound and connected by the stapler 3.

Thereafter, the aerogel blanket 1 joined as a whole is wound by operating the take-up roll 205 so that the end of the aerogel blanket 1 of the take-up roll 201 is pulled from the inlet of the hang-up tank 100 through the outlet of the hang-up tank 100.

Finally, removing the staples, and removing the rectangular cloth piece 2 for recycling; at the same time, the wound-up material roll 205 is removed and the end of the succeeding supply roll 201 is fixed to the reel of a new material roll.

To sum up, the rectangle cloth piece of this application can adopt ordinary cloth to make, and the cost can be neglected almost. And the rectangular cloth piece made of the cloth has both strength and flexibility, and can easily pass through the gap between the rollers in the glue hanging groove. In addition, this application passes the rectangle cloth that has the breach through the stitcher, can couple together the tip that rectangle sheet of cloth and aerogel felt overlap through the staple, connects and dismantles the convenience, low cost, easy and simple to handle.

It should be appreciated by those skilled in the art that while the present application is described in terms of several embodiments, not every embodiment includes only a single embodiment. The description is thus given for clearness of understanding only, and it is to be understood that all matters in the embodiments are to be interpreted as including all technical equivalents which are encompassed by the claims and are to be interpreted as combined with each other in a different embodiment so as to cover the scope of the present application.

The above description is only an exemplary embodiment of the present disclosure, and is not intended to limit the scope of the present disclosure. Any equivalent alterations, modifications and combinations that may be made by those skilled in the art without departing from the spirit and principles of this application shall fall within the scope of this application.

Claims

1. A method for joining aerogel blankets, for joining the ends of aerogel blankets (1) of a receiving roll (205) and a delivery roll (201) of the same width, to be continued as a whole through a glue hanging slot (100), characterized in that it comprises the following steps:

providing a rectangular cloth piece (2), wherein the width of the rectangular cloth piece (2) is the same as that of the aerogel felt cloth (1), and a plurality of cuts (21) are arranged on the rectangular cloth piece (2) at equal intervals;

before the tail end of the aerogel felt (1) of the material receiving roll (205) is pulled to pass through the inlet of the glue coating groove (100), the tail end of the aerogel felt (1) of the material receiving roll (205) and the head of the aerogel felt (1) of the material discharging roll (201) are respectively overlapped with two ends of the rectangular cloth piece (2);

a stapler (3) penetrates through the notch (21), and then the overlapped ends of the rectangular cloth piece (2) and the aerogel felt (1) are connected through a staple, so that the aerogel felt (1) of the material receiving roll (205) and the material discharging roll (201) is connected into a whole through the rectangular cloth piece (2);

winding the aerogel felt (1) which is connected into a whole by operating the material receiving roll (205) so that the end part of the aerogel felt (1) of the material discharging roll (201) is pulled from the inlet of the glue hanging groove (100) to pass through the outlet of the glue hanging groove (100);

removing the staples, and removing the rectangular cloth piece (2) for cyclic utilization; at the same time, the wound material receiving roll (205) is removed, and the end of the successive material discharging roll (201) is fixed on the reel of the new material receiving roll.

2. A method as claimed in claim 1, wherein said incisions (21) are arranged parallel to each other, and a row of said incisions (21) is arranged adjacent to both ends of said rectangular piece of cloth (2).

3. A method as claimed in claim 1, characterized in that the incisions (21) are arranged parallel to each other, and that only one row of said incisions (21) is arranged between the two ends of the rectangular piece of cloth (2).

4. A method as claimed in claim 1, wherein said cuts (21) are arranged parallel to each other, the length direction of the cuts (21) being perpendicular to the edge line of the connecting end of said rectangular piece of clothing (2).

5. A connection structure for aerogel felt, be used for with the same width receive material book (205) and the blowing end connection of aerogel felt (1) of book (201) of blowing, in order to continue to become whole and pass through glue hanging groove (100), characterized by, connection structure includes with the same rectangle cloth piece (2) of width of aerogel felt (1), the both ends of rectangle cloth piece (2) are used for connecting respectively receive material book (205) and the blowing end of aerogel felt (1) of book (201), rectangle cloth piece (2) are equidistant to be provided with a plurality of incisions (21), incision (21) are used for passing stapler (3) in order to be connected together rectangle cloth piece (2) and the end that aerogel felt (1) overlapped through the staple.

6. The connecting structure according to claim 5, wherein the slits (21) are arranged in parallel with each other, and the length direction of the slits (21) is perpendicular to the edge line of the connecting end portion of the rectangular piece of fabric (2).

7. A coupling structure according to claim 5, characterized in that a row of said incisions (21) is provided adjacent to both ends of said rectangular piece of cloth (2).

8. A connection according to claim 5, characterized in that the incisions (21) are all of equal length.

9. A coupling structure according to claim 5, characterized in that only one row of said slits (21) is provided between the two ends of said rectangular piece of cloth (2).

10. A connection according to claim 5, characterized in that the rectangular piece of cloth (2) is sewn at both ends with reinforcing strips (22) preventing tearing.