Composite preparation device for multi-layer felt

Abstract

The invention relates to a multi-layer felt composite preparation device which comprises a first feeding mechanism, a gluing mechanism, a second feeding mechanism and a drying mechanism, the first feeding mechanism is used for conveying a first felt body, the gluing mechanism is arranged close to the first feeding mechanism and used for gluing one side of the first felt body, the second feeding mechanism is used for conveying a second felt body, and the drying mechanism is arranged close to the second feeding mechanism and used for drying the second felt body. The gluing side of the first felt body is covered with the second felt body to obtain a composite felt, and the drying mechanism receives the composite felt and rolls and dries the composite felt to obtain a multi-layer felt. According to the composite preparation device for the composite felt, the composite felt can be automatically produced, the production efficiency and the yield are improved, and the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of felt processing and production, and particularly relates to a multilayer felt composite preparation device. BACKGROUND

[0002] Aerogel felt is a felt structure formed by combining aerogel raw materials with fiber felt through a special process. Aerogel felt has excellent thermal insulation performance, high temperature resistance, and does not produce harmful gases. Therefore, aerogel felt products are used as high-efficiency thermal insulation materials in the new energy automobile industry, household appliances, smart electronic products, and other fields.

[0003] When a thicker thermal insulation product is needed, a single layer of aerogel felt is often difficult to meet the requirements due to insufficient thickness. At this time, multiple single-layer aerogel felts or fiber felts need to be stacked to achieve the target thickness. The felts need to be pasted together with adhesive to increase the connection strength between the felts. Currently, manual brushing and pasting of adhesive on the felts are commonly used, which is high in cost and low in yield. SUMMARY

[0004] Therefore, the purpose of the present application is to provide a multilayer felt composite preparation device to realize automated production of multilayer felt.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the multilayer felt composite preparation device of the present application is as follows: A first feeding mechanism for conveying a first felt; A glue applying mechanism arranged close to the first feeding mechanism, for applying glue to one side of the first felt; A second feeding mechanism arranged on the side of the glue applying mechanism away from the first feeding mechanism, for conveying a second felt and covering the second felt on the glued side of the first felt to obtain a composite felt; A drying mechanism close to the second feeding mechanism, for receiving the composite felt and rolling and drying it to obtain a multilayer felt. The drying mechanism includes a drying element, a conveying element, and a plurality of groups of pressing rollers arranged at intervals along the conveying direction. Each group of pressing rollers and the conveying element form a gap for the composite felt to pass through.

[0006] Beneficial effects: a laminated felt composite preparation device of the present application, after the first felt body is glued, it is bonded with the second felt body together, and then enters the drying mechanism to be dried, after drying and pressing in the drying mechanism, the first felt body and the second felt body are extruded and attached to form a laminated felt, so that the automatic production of laminated felt can be realized, compared with the preparation process of manual brushing of glue solution and attachment, the technical scheme of the present application improves the production efficiency and yield, and reduces the cost. The drying mechanism is provided with drying elements, conveying elements, a plurality of groups of pressing rollers arranged at intervals along the conveying extension direction, a gap for the superimposed felt to pass is formed between each group of pressing rollers and the conveying element, the superimposed felt is further rolled and attached in the drying mechanism, preventing the laminated felt from warping, ensuring the flatness of the appearance of the laminated felt, and ensuring the heat insulation performance of the laminated felt.

[0007] In some embodiments, the laminated felt composite preparation device further comprises a cutting mechanism, the cutting mechanism is arranged between the drying mechanism and the second feeding mechanism, and is used for cutting the composite felt and feeding the cut sheet into the drying mechanism; the distance between every two adjacent pressing rollers is less than the length of the sheet along the extension direction of the conveying element. In this way, the cut sheet is always rolled by at least one pressing roller during the entire drying process, thereby avoiding the edge of the sheet from warping.

[0008] In some embodiments, the laminated felt composite preparation device further comprises a cutting mechanism, the cutting mechanism is arranged on the side of the drying mechanism away from the second feeding mechanism, and is used for cutting the laminated felt.

[0009] In some embodiments, the laminated felt composite preparation device further comprises an attachment mechanism, the attachment mechanism comprises a flat attachment track, the glue applying mechanism is arranged on the attachment track, the first feeding mechanism spreads the first felt body on the attachment track so that the glue applying mechanism applies glue to the first felt body, and the second feeding mechanism spreads the second felt body on the attachment track so that the second felt body is attached to the glued side of the first felt body.

[0010] In some embodiments, the laminated felt composite preparation device further comprises an attachment mechanism, the attachment mechanism comprises a circular guide disc and a limiting wheel arranged outside the circumference of the guide disc, the outer circumferential surface of the circular guide disc forms a support surface of the laminated felt, and the limiting wheel presses and attaches the laminated felt and the outer circumferential surface of the circular guide disc; the limiting wheel and the circumferential surface of the guide disc form an attachment channel for the laminated felt to pass through.

[0011] Beneficial effects: the circular guide disc can provide stable support for the first felt body and the second felt body, the limiting wheel can press and attach the first felt body and the second felt body when they pass between the limiting wheel and the circular guide disc, ensuring that the first felt body and the second felt body remain flat after being bonded, and the first felt body and the second felt body can be more smoothly bonded together.

[0012] The first mat and the second mat are each independently selected from a glass fiber mat, a ceramic fiber mat, a pre-oxidized fiber mat, or an aerogel mat. In the present application, the term "aerogel mat" refers to a fiber mat reinforced aerogel composition, wherein the fiber mat comprises a glass fiber mat, a ceramic fiber mat, or a pre-oxidized fiber mat.

[0013] In some embodiments, the glue applying mechanism comprises: a mounting frame; a glue applying assembly rotatably disposed on the mounting frame; a glue supplying assembly disposed on the mounting frame, the glue supplying assembly configured to direct glue to the glue applying assembly; a glue scraping structure disposed on the mounting frame, the glue scraping structure disposed on a side of the glue applying assembly, the glue scraping structure configured to remove part of the glue on the glue applying assembly to form a glue pattern on the glue applying assembly; the glue applying assembly configured to transfer the glue pattern to the workpiece.

[0014] In some embodiments, the glue applying assembly is a cylindrical glue applying roller rotatably disposed on the mounting frame, the glue applying roller having a glue applying surface formed on a circumferential edge of the glue applying roller, the glue pattern formed on the glue applying surface; the glue scraping structure is a scraper disposed on a side of the glue applying roller, an end of the scraper facing the glue applying roller having a plurality of rectangular teeth spaced apart, the rectangular teeth configured to abut the glue applying surface to remove the glue on the glue applying surface and form a stripe-shaped glue pattern on the glue applying surface.

[0015] The glue applying mechanism comprises: a mounting frame; a glue applying assembly rotatably disposed on the mounting frame; a glue supplying assembly disposed on the mounting frame, the glue supplying assembly configured to direct glue to the glue applying assembly; a glue scraping assembly disposed on the mounting frame, the glue scraping assembly disposed adjacent to the glue applying assembly, the glue scraping assembly configured to remove part of the glue on the glue applying assembly to form a glue pattern on the glue applying assembly; the glue applying assembly configured to transfer the glue pattern to the workpiece.

[0016] In some embodiments, the glue applying assembly is a cylindrical glue applying roller rotatably disposed on the mounting frame, the glue applying roller having a glue applying surface formed on a circumferential edge of the glue applying roller, the glue pattern formed on the glue applying surface; the glue scraping assembly is a metal roller rotatably disposed on the mounting frame, the metal roller disposed parallel to the glue applying roller, the metal roller having a plurality of annular protrusions spaced apart along an axial direction of the metal roller, adjacent annular protrusions forming an annular groove, the annular protrusions configured to abut the glue applying surface to prevent the glue from adhering to the glue applying surface; the glue applying roller and the metal roller configured to rotate in opposite directions to allow the glue to pass through a gap between the metal roller and the glue applying roller and adhere to the glue applying surface to form a stripe-shaped glue pattern. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structure diagram of an embodiment one of a composite felt composite preparation device of the present application; Figure 2 is a structure diagram of an embodiment two of a composite felt composite preparation device of the present application; Figure 3 is Figure 2 is a structure diagram of a gluing mechanism of a composite felt composite preparation device in the present application; Figure 4 is Figure 3 is a partial structure diagram of the gluing mechanism in the present application; Figure 5 is Figure 4 is a front view of a scraper of the gluing mechanism in the present application; Figure 6 is a structure diagram of a gluing mechanism of an embodiment three of a composite felt composite preparation device of the present application; Figure 7 is Figure 6 is a structure diagram of a gluing roller and a metal roller in the gluing mechanism in the present application; Figure 8 is Figure 7 is a cross-sectional view of the gluing roller and the metal roller in the present application; Figure 9 is a structure diagram of an embodiment four of a composite felt composite preparation device of the present application.

[0018] Reference numerals: 101-first feeding mechanism; 102-second feeding mechanism; 103-gluing mechanism; 105-drying channel; 106-cutting mechanism; 1-first feeding mechanism; 2-gluing mechanism; 3-second feeding mechanism; 4-limiting wheel; 5-guiding disc; 6-transmission belt; 7-mounting frame; 8-drying channel; 9-cutting mechanism; 10-first aerogel mat; 11-second aerogel mat; 110-driving assembly; 111-driving motor; 112-connecting gear; 113-transmission chain; 120-gluing assembly; 121-gluing roller; 122-driving gear; 123-limiting roller; 124-transmission gear; 140-glue supply assembly; 141-receiving groove; 150-guiding gear; 160-glue scraping structure; 161-scraping knife; 162-baffle; 163-rectangular tooth; 400-mounting frame; 500-aerogel mat; 600-glue solution; 100-mounting frame; 200-aerogel mat; 300-glue solution; 10-gluing assembly; 11-gluing roller; 12-driving gear; 13-driving gear; 20-glue scraping assembly; 21-metal roller; 22-driven gear; 23-annular protrusion; 24-annular groove; 30-limiting member; 31-limiting roller; 32-limiting gear; 40-driving assembly; 41-driving motor; 42-transmission gear; 50-guiding gear; 60-transmission chain; 70-receiving groove; 43-guiding disc; 44-limiting wheel; 45-first feeding mechanism; 46-gluing mechanism; 47-second feeding mechanism; 48-drying mechanism; 49-cutting mechanism. DETAILED DESCRIPTION

[0019] Embodiments of the present application are described in detail below with reference to the attached drawing figures, wherein the same or like reference numerals and characters throughout the figures denote the same or like components or elements having the same or similar functions. The embodiments described below are exemplary only, and are not to be construed as limiting the present application.

[0020] In the description of the present application, it needs to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features referred to. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of", "several" is two or more, unless otherwise explicitly specified and limited. In the description of the present application, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected or can communicate with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication or interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0021] The present application is further described in detail below in combination with the drawings and specific embodiments: It needs to be explained that the composite layer felt composite preparation device of the present application can not only prepare composite layer aerogel felt coiled material, but also prepare composite layer aerogel felt sheet material.

[0022] Example one: as Figure 1As shown, a composite felt composite preparation device of the present application comprises a first feeding mechanism 101, a gluing mechanism 103, a second feeding mechanism 102, a laminating mechanism, a drying mechanism, and a cutting mechanism 106. In this embodiment, the laminating mechanism comprises a flat laminating track, the gluing mechanism 103 is arranged on the laminating track, and the first feeding mechanism 101 and the second feeding mechanism 102 are arranged on the two sides of the gluing mechanism 103, respectively. The first feeding mechanism 101 is used to deliver the first felt body, which is the first aerogel felt in this embodiment. The first feeding mechanism 101 unfolds the first aerogel felt and then enters the gluing mechanism 103 to be glued. The gluing mechanism 103 glues one side of the first aerogel felt. The second feeding mechanism 102 is used to supply the second felt body, which is the second aerogel felt in this embodiment. The second aerogel felt is stacked on the glued side of the first aerogel felt to complete the lamination. The first aerogel felt and the second aerogel felt are pressed and laminated on the laminating track to form a composite felt, which is a composite aerogel felt in this embodiment. In other embodiments, the first felt body and the second felt body can also be selected from glass fiber felt, ceramic fiber felt, and pre-oxidized fiber felt. In this application, the term "aerogel felt" refers to a fiber felt reinforced aerogel composition, wherein the fiber felt comprises glass fiber felt, ceramic fiber felt, or pre-oxidized fiber felt.

[0023] In this embodiment, the drying mechanism is a drying channel 105. The drying mechanism is close to the second feeding mechanism and is used to receive the composite felt and roll and dry it to obtain a composite aerogel felt. The drying channel 105 has a linear structure. The drying channel 105 is provided with a heating structure to dry the composite aerogel felt through the heating structure to obtain a composite felt, which is a composite aerogel felt in this embodiment. In this embodiment, the structure and principle of the heating structure are prior art, which will not be described here. Furthermore, the drying channel 105 also includes drying elements and conveying elements. The drying channel 105 is provided with a plurality of groups of pressure rollers in the extension direction. The pressure rollers and the transmission elements form a gap for the stacked aerogel felt to pass through, so as to laminate the aerogel felt stacked together, prevent the composite aerogel felt from warping, and ensure the lamination effect of the composite aerogel felt. In this embodiment, the structure and principle of the drying element are prior art, which will not be described here. The structure and principle of the conveying element are prior art, which will not be described here.

[0024] The cutting mechanism 106 is arranged at the end of the drying channel 105. The composite aerogel felt dried by the drying channel 105 enters the cutting mechanism 106 to be cut. In this embodiment, the structure and principle of the cutting mechanism are prior art, which will not be described here in detail.

[0025] In this embodiment, both the first aerogel felt and the second aerogel felt are continuous rolls. In this case, the continuous multilayer aerogel felt is first made by the multilayer felt composite preparation device of the present invention. The multilayer aerogel felt enters the drying tunnel for drying and is then cut into sheets by the cutting mechanism. In this case, the cutting mechanism is located at the end of the drying tunnel away from the second feeding mechanism. In other embodiments, the continuous multilayer aerogel felt can also be cut first and then dried. In this case, the cutting mechanism is located at the end of the drying tunnel near the second feeding mechanism. The drying mechanism dries intermittent sheets. In this case, the distance between two adjacent pressure rollers in the drying tunnel is less than the length of the multilayer aerogel felt sheet in the conveying direction. When the multilayer aerogel felt sheet passes through the drying tunnel, it is always squeezed by the pressure rollers to avoid the edge warping of the multilayer aerogel felt sheet.

[0026] Example 2: Figure 2 As shown, a multilayer felt composite preparation apparatus of the present invention includes a first feeding mechanism 1, an adhesive coating mechanism 2, a second feeding mechanism 3, a bonding mechanism, a drying mechanism, and a cutting mechanism 9. The first feeding mechanism 1 conveys a first aerogel felt 10 to the adhesive coating mechanism 2, which applies adhesive to one side of the first aerogel felt 10. The second feeding mechanism 3 conveys a second aerogel felt 11, positioning the second aerogel felt 11 on the adhesive-coated side of the first aerogel felt 10. In this embodiment, both the first feeding mechanism 1 and the second feeding mechanism 3 are unwinding roller-type feeding mechanisms.

[0027] The bonding mechanism is configured to press and bond the second aerogel felt 11 with the first aerogel felt 10 after adhesive application to form a multilayer aerogel felt. In this embodiment, the bonding mechanism includes a circular guide disk 5 and limiting wheels 4 disposed on the outer circumference of the guide disk 5. In this embodiment, three limiting wheels 4 are provided, and the rotation axes of the three limiting wheels 4 are located on the same circumference. The outer circumferential surface of the circular guide disk 5 forms the support surface of the multilayer aerogel felt. A transmission belt 6 is provided between the limiting wheels 4. The transmission belt 6 includes an arc-shaped segment corresponding to the circular guide disk 5. There is a bonding channel between the arc-shaped segment of the transmission belt 6 and the circular guide disk 5. In this embodiment, the bonding channel is an arc-shaped channel, and the arc segment of the arc-shaped channel is a superior arc, so that the winding segment of the multilayer aerogel felt on the outer circumferential surface of the circular guide disk 5 is a superior arc. The conveyor belt extends the bonding stroke of the bonding mechanism, allowing the multilayer aerogel felt to be compressed and bonded throughout the bonding channel, further increasing the bonding strength between the first aerogel felt 10 and the second aerogel felt 11 of the multilayer aerogel felt. Moreover, the bonding mechanism is designed with a circular guide disc and a limiting wheel, adjusting the overall layout of the equipment.

[0028] In this embodiment, the drying mechanism is a drying channel 8, which is arranged on one side of the laminating mechanism. The drying channel 8 has a linear structure, and a heating structure is arranged in the drying channel 8 to dry the multi-layer aerogel blanket by the heating structure. In this embodiment, the structure and principle of the heating structure are prior art, which will not be described here. Furthermore, the drying channel 8 includes drying elements and conveying elements, and a plurality of groups of pressing rollers are arranged in the extending direction of the drying channel 8. A gap is formed between each group of pressing rollers and the transmission element for the stacked aerogel blanket to pass through, so as to laminate the stacked aerogel blanket and prevent the multi-layer aerogel blanket from warping, thereby ensuring the laminating effect of the multi-layer aerogel blanket. In this embodiment, the structure and principle of the drying element are prior art, which will not be described here. The structure and principle of the conveying element are prior art, which will not be described here.

[0029] The cutting mechanism 9 is arranged at the end of the drying channel 8. The multi-layer aerogel blanket dried by the drying channel 8 enters the cutting mechanism 9 for cutting. In this embodiment, the structure and principle of the cutting mechanism are prior art, which will not be described here.

[0030] For the convenience of description, the direction in which the aerogel blanket 500 moves is defined as the front-rear direction, and the width direction of the aerogel blanket 500 is defined as the left-right direction. Specifically, as shown in FIG. 5, the glue applying mechanism includes a mounting frame 400, and the mounting frame 400 is provided with a glue applying assembly 120, a glue supplying assembly 140, and a glue scraping structure 160. The glue supplying assembly 140 guides the glue liquid 600 to the glue applying assembly 120, and the glue scraping structure 160 is arranged on one side of the glue applying assembly 120. The glue scraping structure 160 scrapes part of the glue liquid 600 on the glue applying assembly 120 to form a glue liquid pattern on the glue applying assembly 120, and the glue applying assembly 120 can transfer the glue liquid pattern to the workpiece. Figures 3-5

[0031] In use, the glue supplying assembly 140 guides the glue liquid 600 to the glue applying assembly 120, and the glue scraping structure 160 scrapes part of the glue liquid 600 on the glue applying assembly 120 to form a glue liquid pattern. The glue applying assembly 120 transfers the glue liquid pattern to the aerogel blanket 500. The glue liquid pattern provides an escape channel for water vapor evaporation, which avoids the occurrence of bulging or delamination when the multi-layer aerogel blanket 500 is fixed by the glue liquid 600, thereby ensuring the appearance quality of the multi-layer aerogel blanket 500.

[0032] ​Specifically, the glue applying assembly 120 is a cylindrical glue applying roller 121 rotatably arranged on the mounting rack 400, the circumferential outer edge of the glue applying roller 121 is provided with a glue applying surface, and the glue pattern is formed on the glue applying surface. The glue scraping structure 160 is a scraper 161 arranged on one side of the glue applying roller 121, one end of the scraper 161 facing the glue applying roller 121 is formed with a plurality of rectangular teeth 163 arranged at intervals, and the rectangular teeth 163 are arranged in close contact with the glue applying surface to scrape off the glue 600 on the glue applying surface of the glue applying roller 121 and form a stripe-shaped glue pattern on the glue applying surface. In the embodiment, the glue applying roller 121 is a rubber roller.

[0033] In some embodiments, the glue applying assembly 120 further comprises a limiting roller 123 arranged above the glue applying roller 121 and spaced apart from the glue applying roller 121, the limiting roller 123 is in a cylindrical shape, a gap for the workpiece to pass through is formed between the glue applying roller 121 and the limiting roller 123, and the rotation directions of the glue applying roller 121 and the limiting roller 123 are opposite.

[0034] In some embodiments, the glue supply assembly 140 is a containing groove 141 fixed on the mounting rack 400, the containing groove 141 is used to contain the glue 600, the glue applying roller 121 is arranged above the containing groove 141, and the glue applying surface of the glue applying roller 121 is in contact with the liquid surface of the glue 600 so that the glue 600 is attached to the glue applying surface after the glue applying roller 121 rotates.

[0035] In some embodiments, the glue supply assembly 140 comprises a raw material barrel (not shown in the figure) containing the glue 600, the raw material barrel continuously supplies glue to the containing groove 141 to realize continuous glue applying of the workpiece by the glue applying device.

[0036] In order to facilitate the rotation of the glue applying roller 121, in the embodiment, the glue applying device further comprises a driving assembly 110 arranged on the mounting rack 400, the driving assembly 110 comprises a driving motor 111, a driving gear 122 and a transmission chain 113, the driving gear 122 is connected to one end of the glue applying roller 121, a connecting gear 112 is arranged on the output shaft of the driving motor 111, the connecting gear 112 is connected to the driving gear 122 through the transmission chain 113 and is arranged to drive the glue applying roller 121 to rotate. Furthermore, a transmission gear 124 is arranged on the limiting roller 123, the driving motor 111 is connected to the transmission gear 124 through a transmission connection and is arranged to drive the limiting roller 123 to rotate.

[0037] In some embodiments, in order to facilitate the adjustment of the transmission direction of the transmission chain 113 and the adjustment of the tightness of the transmission chain 113, in the embodiment, a guide gear 150 is rotatably arranged on the mounting rack 400, the guide gear 150 is arranged on one side of the glue applying pipe, the transmission chain 113 passes around the guide gear 150, the transmission path of the transmission chain 113 is changed through the guide gear 150, and the adjacent transmission chain 113 is avoided from being too close.

[0038] In some embodiments, the scraper 161 is fixed on the mounting frame 400, and the scraper 161 is located on the side of the glue roller 121 away from the glue solution 600. In order to facilitate the collection of the glue solution 600 scraped by the scraper 161, the lower end of the scraper 161 extends into the accommodation groove 141 in this embodiment, so that the scraped glue solution 600 is guided to the accommodation groove 141 through the scraper 161. In order to smoothly guide the glue solution 600 on the scraper 161, the left and right sides of the scraper 161 are fixed with baffles 162.

[0039] It should be noted that the glue coating device of the multilayer aerogel felt 500 of the present application can be used for continuous coating of roll-shaped aerogel felt 500 and for coating of sheet aerogel station.

[0040] In this embodiment, when the glue coating device is in use, the driving motor 111 drives the connecting gear 112 to rotate counterclockwise, the connecting gear 112 drives the transmission chain 113 to rotate, the transmission chain 113 drives the limiting roller 123 to rotate counterclockwise, the transmission chain 113 drives the glue roller 121 to rotate clockwise, and after the glue roller 121 rotates, the glue coating surface is full of glue solution 600. Then, the rectangular teeth 163 of the scraper 161 arranged on the side of the glue roller 121 away from the glue solution are used to remove part of the glue solution 600 on the glue coating surface of the glue roller 121, forming a striped glue pattern on the glue coating surface. When the aerogel felt 500 passes through the gap between the glue roller 121 and the limiting roller 123, the glue roller 121 transfers the striped glue pattern to one side of the aerogel felt 500, so that the one side of the aerogel felt 500 is coated to form a striped glue pattern arranged at intervals. In this way, when the glue is dried, water vapor evaporates from the glue, and the interval arrangement of the strip-shaped glue provides an escape channel for the water vapor, avoiding the bulging phenomenon of the aerogel felt 500 and ensuring the appearance quality of the multilayer aerogel felt.

[0041] In order to facilitate the description of the structure, the direction of the movement of the aerogel felt is defined as the front-back direction, and the width direction of the aerogel felt is defined as the left-right direction. Figures 6-8 As shown in FIG. 8, the glue coating mechanism includes a mounting frame 100. The mounting frame 100 is provided with a glue coating assembly 10, a glue supply assembly, and a glue scraping assembly 20. The glue supply assembly guides the glue solution 300 to the glue coating assembly 10, and the glue scraping assembly 20 is arranged adjacent to the glue coating assembly 10. The glue scraping assembly 20 removes part of the glue solution 300 on the glue coating assembly 10, so that the glue solution 300 on the glue coating assembly 10 forms a glue pattern, and the glue coating assembly 10 can transfer the glue pattern to the aerogel felt 200.

[0042] Thus, in use, the glue supply assembly guides the glue liquid 300 to the glue applying assembly 10, the glue removing assembly 2 removes part of the glue liquid 300 on the glue applying assembly 10 to form a glue liquid pattern, and the glue applying assembly 10 transfers the glue liquid pattern to the aerogel felt 200. The glue liquid pattern provides an escape channel for water vapor to escape, avoiding the phenomenon of bulging or delamination due to the inability of water vapor to escape when fixing the multilayer aerogel felt 200 with glue liquid, thereby ensuring the appearance quality of the multilayer aerogel felt.

[0043] Specifically, the glue applying assembly 10 is a cylindrical glue roller 11 rotatably arranged on the mounting frame 100, and the glue roller 11 is provided with a glue applying surface on the circumferential outer edge, and the glue liquid pattern is formed on the glue applying surface. In this embodiment, the glue roller 11 is a rubber roller; the glue removing assembly 20 is a metal roller 21 rotatably arranged on the mounting frame 100, and the metal roller is arranged parallel to the glue roller. The metal roller 21 is provided with a plurality of annular protrusions 23 along the axial direction, and annular grooves 24 are formed between adjacent annular protrusions 23. The annular protrusions are arranged in close contact with the glue applying surface to prevent the glue liquid from adhering to the glue applying surface. The rotation directions of the glue roller 11 and the metal roller 21 are opposite. In this embodiment, the glue roller 11 rotates clockwise, and the metal roller 21 rotates counterclockwise, so that the glue liquid passes through the gap between the annular grooves of the metal roller and the glue applying surface and adheres to the glue applying surface to form a stripe-shaped glue liquid pattern.

[0044] In some embodiments, the glue supply assembly includes a glue liquid containing groove for containing the glue liquid. The metal roller is fixed with flanges at both ends, and the flanges protrude from the circumferential outer edge of the metal roller 21 and are in close proximity to the glue roller 11. Thus, the glue roller 11, the metal roller 21, and the flanges at both ends of the metal roller collectively form a containing groove 70 for containing the glue liquid 300. After the glue roller 11 is rotated out of the containing groove 70, the glue roller 11 is axially spaced apart under the joint action of the metal roller 21 to form a stripe-shaped glue liquid pattern. That is, a stripe-shaped glue liquid pattern is formed on the glue roller 11, and the stripes are axially spaced apart along the glue roller 11.

[0045] In some embodiments, the glue supply assembly includes a raw material barrel (not shown in the figure) containing the glue liquid 300, which continuously supplies glue to the containing groove 70 to realize continuous glue application of the workpiece 200 by the glue applying device 100.

[0046] In order to facilitate automation, the glue applying device further includes a driving assembly 40 arranged on the mounting frame 100. The driving assembly 40 includes a driving motor 41, a driving gear 13, and a transmission chain 60. The driving gear 13 is connected to one end of the glue roller, and the driving motor is connected to the driving gear 13 through the transmission chain 60. A transmission gear 42 is fixed on the output shaft of the driving motor. Specifically, the driving motor 41 works to drive the transmission gear 42 to rotate, and the transmission gear drives the driving gear 13 to rotate through the transmission chain 60, thereby realizing the rotation of the glue roller 11 driven by the driving motor 41.

[0047] In some embodiments, the glue roller 11 and the metal roller 21 are driven by gear meshing. In this embodiment, a driving gear 12 is fixed on the rotating shaft of the glue roller 11, the driving gear 12 is arranged on the right side of a driving gear 13, and a driven gear 22 is fixed on one end of the metal roller 21. The driving gear 12 and the driven gear 22 are meshed and driven, so that the glue roller 11 and the metal roller 21 share one driving motor 41, and the structure of the glue applying device is simplified. In this embodiment, the linear speeds of the glue roller 11 and the metal roller 21 are the same. In other embodiments, by adjusting the diameters of the metal roller 21 and the glue roller 11, the linear speed of the outer edge of the metal roller 21 rotating is made smaller or larger than the linear speed of the glue applying surface of the glue roller 11, so that the annular rack of the metal roller 21 scratches the glue solution 300 on the glue roller 11.

[0048] In some embodiments, a limiting piece 30 is further arranged on the mounting frame 100, the limiting piece 30 is arranged on the side of the glue roller 11 away from the accommodating groove 70, and the limiting piece 30 is arranged close to the glue roller 11. A gap is formed between the limiting piece 30 and the glue roller 11 for the aerogel felt 200 to pass through.

[0049] In some embodiments, the limiting piece 30 is a limiting roller 31 arranged correspondingly below the glue roller 11. The limiting roller 31 is rotatably arranged on the mounting frame 100. The outer circumferential surface of the limiting roller 31 is cylindrical. A gap is formed between the limiting roller 31 and the glue roller 11 for the aerogel felt 200 to pass through.

[0050] The rotating direction of the limiting roller 31 is opposite to that of the glue roller 11. In this embodiment, the limiting roller 31 rotates counterclockwise. The limiting roller 31 can limit the passing aerogel felt 200, so that the aerogel felt 200 fully contacts the glue roller 11, and the adhesive on the glue roller 11 is successfully transferred to the aerogel felt 200. In this embodiment, the outer circumferential surfaces of the limiting roller 31 and the glue roller 11 are both cylindrical, so that the aerogel felt 200 can not be wrinkled or twisted during conveying and glue applying, and the yield of the multilayer aerogel felt 200 is improved.

[0051] In some embodiments, in order to facilitate the rotation and driving of the limiting roller 31, one end of the limiting roller 31 is fixed with a limiting gear 32, and the limiting gear 32 is drivingly connected with the driving motor 41 through the transmission chain 60.

[0052] In some embodiments, in order to facilitate the adjustment of the transmission direction of the transmission chain 60 and the adjustment of the tightness of the transmission chain 60, a guide gear 50 is rotatably arranged on the mounting frame 100. The transmission chain 60 passes around the guide gear 50. The transmission path of the transmission chain 60 is changed through the guide gear 50, and the adjacent transmission chains 60 are avoided from being too close.

[0053] It should be noted that the coating device of the multi-layer aerogel felt 200 can be used for continuous coating of the roll-shaped aerogel felt 200 and can also be used for coating of the sheet aerogel felt 200.

[0054] In use, the driving motor 41 drives the transmission gear 42 to rotate clockwise, the transmission gear 42 drives the transmission chain 60 to rotate, the transmission chain 60 drives the limiting roller 31 to rotate counterclockwise and drives the coating roller 11 to rotate clockwise. The coating roller 11 and the metal roller 21 are driven by gear meshing, so that the coating roller 11 drives the metal roller 21 to rotate counterclockwise. After the coating roller 11 rotates and rotates out of the containing groove 70, the glue solution 300 passes through the gap between the annular groove 24 of the metal roller 21 and the coating surface of the coating roller 11 and forms a stripe-shaped glue solution pattern on the coating surface of the coating roller 11. The aerogel felt 200 passes through the gap between the coating roller 11 and the limiting roller 31, and the coating roller 11 transfers the stripe-shaped glue solution pattern on the outer circumferential surface to one side of the aerogel felt 200, so that the one side of the aerogel felt 200 is coated with a stripe-shaped glue solution. In this way, when the multi-layer aerogel felt 200 is bonded together by the adhesive, the adhesive gradually dries, and water vapor evaporates from the adhesive. The stripe-shaped adhesive arranged at intervals provides an escape channel for water vapor, avoiding the occurrence of bulging during bonding of the multi-layer aerogel felt 200, and ensuring the appearance quality of the multi-layer aerogel felt 200. Moreover, the amount of adhesive used can be saved, and adhesive overflow can be alleviated. Furthermore, in the present application, the aerogel felt 200 passes through the gap between the coating roller 11 and the limiting roller 31, avoiding the occurrence of wrinkles, distortion and other phenomena during conveying and coating of the aerogel felt 200, and improving the yield.

[0055] As shown in Example Four, Figure 9 The multi-layer felt composite preparation device includes a first feeding mechanism 45, a coating mechanism 46, a second feeding mechanism 47, a laminating mechanism, a drying mechanism 48, and a cutting mechanism 49. The first feeding mechanism 45 is used to convey the first aerogel felt to the coating mechanism 46, the coating mechanism 46 coats one side of the first aerogel felt, and the second feeding mechanism 47 is used to convey the second aerogel felt so that the second aerogel felt is located on the coated side of the first aerogel felt 10. In this embodiment, the first feeding mechanism 45 and the second feeding mechanism 47 are both feeding mechanisms in the form of unwinding rollers.

[0056] Unlike Example One, the transmission belt between the limiting wheels 44 is not provided, and the limiting wheels 44 press and adhere the multi-layer aerogel felt to the outer circumferential surface of the circular guide disc 43. At this time, the limiting wheels 44 and the circumferential surface of the guide disc 43 form an adhering channel for the multi-layer aerogel felt to pass through.

[0057] In the embodiment, three limiting wheels are arranged, and the central angle between the first limiting wheel and the third limiting wheel in the counterclockwise direction of the guide disc is greater than 180 degrees, so that the multilayer aerogel felt is wound in an optimal arc on the outer circumferential surface of the circular guide disc. In other embodiments, two limiting wheels can also be arranged.

[0058] In the above embodiment, the fitting mechanism comprises a circular guide disc and a limiting wheel arranged on the outer side of the circumferential surface of the guide disc. In other embodiments, the fitting mechanism can only comprise the guide disc.

[0059] In the above embodiment, the glue applying assembly comprises a limiting roller arranged above the glue applying roller and spaced apart from the glue applying roller, the limiting roller is in a cylindrical shape, and a gap for the workpiece to pass through is formed between the limiting roller and the glue applying roller. The rotation direction of the glue applying roller is opposite to that of the limiting roller. In other embodiments, the limiting roller can also not be arranged, and the workpiece directly passes above the glue applying roller.

[0060] In the above embodiment, a guide gear is rotatably arranged on the mounting frame, the guide gear is arranged on one side of the glue applying roller, and the transmission chain passes through the guide gear. In other embodiments, the guide gear can also not be arranged.

[0061] In the above embodiment, the lower end of the scraper extends into the accommodating groove. In other embodiments, the scraper can also not extend into the accommodating groove.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A lamination felt composite production apparatus characterized by, The application relates to a composite felt production device. The device comprises a first feeding mechanism for conveying a first felt body; a glue applying mechanism arranged close to the first feeding mechanism, the glue applying mechanism being used for applying glue to one side of the first felt body; a second feeding mechanism arranged on the side of the glue applying mechanism away from the first feeding mechanism, the second feeding mechanism being used for conveying a second felt body and covering the second felt body on the glue applying side of the first felt body to obtain a composite felt; and a drying mechanism arranged close to the second feeding mechanism and used for receiving the composite felt and rolling and drying the composite felt to obtain a composite layer felt, the drying mechanism comprising a drying element, a conveying element, and a plurality of groups of pressing rollers arranged at intervals along the conveying direction, and a gap for the composite layer felt to pass being formed between each group of pressing rollers and the conveying element. The device further comprises a cutting mechanism arranged between the drying mechanism and the second feeding mechanism and used for cutting the composite felt and feeding the cut piece into the drying mechanism; and the distance between every two adjacent groups of pressing rollers is smaller than the length of the piece along the conveying direction of the conveying element. The device further comprises a cutting mechanism arranged on the side of the drying mechanism away from the second feeding mechanism and used for cutting the composite layer felt. The device further comprises a laminating mechanism, the glue applying mechanism is arranged on a flat laminating track, the first feeding mechanism spreads the first felt body on the laminating track so that the glue applying mechanism applies glue to the first felt body, and the second feeding mechanism spreads the second felt body on the laminating track so that the second felt body is laminated on the glue applying side of the first felt body.

2. The layered mat composite production apparatus according to claim 1, characterized in that The device further comprises a laminating mechanism, the laminating mechanism comprises a circular guide disc and a limiting wheel arranged outside the circumference of the guide disc, the outer circumferential surface of the circular guide disc forms a supporting surface of the composite layer felt, and the limiting wheel presses and laminates the composite layer felt and the outer circumferential surface of the circular guide disc; and a laminating channel for the composite layer felt to pass is formed between the limiting wheel and the circumferential surface of the guide disc.

3. The layered mat composite production apparatus according to claim 1, wherein The first felt body and the second felt body are independently selected from glass fiber felt, ceramic fiber felt, pre-oxidized fiber felt or aerogel felt.

4. The layered mat composite production apparatus according to claim 1, wherein The glue applying mechanism comprises:

5. The layered mat composite production apparatus of claim 1, wherein a mounting frame; 6. The multi-layered mat composite production apparatus according to claim 5, wherein a glue applying assembly rotatably arranged on the mounting frame; 7. The layered mat composite production apparatus according to any one of claims 1 to 6, characterized in that a glue supplying assembly arranged on the mounting frame, the glue supplying assembly being used for guiding glue liquid to the glue applying assembly; a glue scraping structure arranged on the mounting frame, the glue scraping structure being arranged on one side of the glue applying assembly and being used for scraping off part of the glue liquid on the glue applying assembly so that the glue liquid on the glue applying assembly forms a glue liquid pattern; and the glue applying assembly is arranged to transfer the glue liquid pattern to a workpiece. The glue applying assembly is a cylindrical glue applying roller rotatably arranged on the mounting frame, a glue applying surface is arranged on the circumferential edge of the glue applying roller, and the glue liquid pattern is formed on the glue applying surface; the glue scraping structure is a scraper arranged on one side of the glue applying roller, one end of the scraper facing the glue applying roller forms a plurality of rectangular teeth arranged at intervals, and the rectangular teeth are arranged in close contact with the glue applying surface so as to scrape off the glue liquid on the glue applying surface of the glue applying roller and form a stripe-shaped glue liquid pattern on the glue applying surface. The glue applying mechanism comprises: a mounting frame; 8. The multi-layered mat composite production apparatus according to claim 7, wherein a glue applying assembly rotatably arranged on the mounting frame; 9. The layered mat composite production apparatus according to any one of claims 1 to 6, characterized in that a glue supplying assembly arranged on the mounting frame, the glue supplying assembly being used for guiding glue liquid to the glue applying assembly; ​ ​ ​ The glue scraping assembly is arranged on the mounting frame and is arranged close to the glue applying assembly. The glue scraping assembly is used to remove part of the glue liquid on the glue applying assembly, so that the glue liquid on the glue applying assembly forms a glue liquid pattern. The glue applying assembly is used to transfer the glue liquid pattern to the workpiece.

10. The layered mat composite production apparatus of claim 9, wherein The glue applying assembly is a cylindrical glue applying roller which is rotatably arranged on the mounting frame. The glue applying roller is provided with a glue applying surface on the circumferential edge. The glue liquid pattern is formed on the glue applying surface. The glue scraping assembly is a metal roller which is rotatably arranged on the mounting frame. The metal roller is arranged parallel to the glue applying roller. A plurality of annular protrusions are arranged on the metal roller along the axial direction. The annular protrusions are arranged in abutment with the glue applying surface, so as to prevent the glue liquid from adhering to the glue applying surface. The glue applying roller and the metal roller rotate in opposite directions, so that the glue liquid passes through the gap between the annular protrusions of the metal roller and the glue applying roller and adheres to the glue applying surface to form a stripe-shaped glue liquid pattern.

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