Connection guide transmission device for felt lapping layer

Abstract

The connection guide transmission device of the felt lapping layer is respectively arranged on an upper press roll and a lower press roll which move in opposite directions, and the connection guide transmission device comprises an upper guide part and a lower guide part. On the one hand, on the premise of meeting the requirement for transmission of the compression roller, lapping layers are fed into a needling area in an original laminated state through the arrangement of the upper and lower guide parts which are kept in contact with the upper and lower needle pressing plates and can rotate relative to the compression roller, so that the phenomenon of dislocation or local stacking of the lapping layers is avoided; further, the feeding stability of the lapping layer is improved, and the felt quality is improved; on the other hand, based on the design of the roller grooves, gas in the lapping layer can be extruded between the pressing rollers and discharged synchronously, the phenomenon that the interior of the lapping layer entering and exiting from the pressing rollers is loosened due to the gas is reduced, and then the feeding quality is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of preparation of novel fibers and composite materials, and particularly relates to a connecting, guiding and transmitting device for a felt laying layer. Background Art

[0002] At present, the production line of aerogel felt (a type of felt) usually consists of pretreatment equipment, feeding equipment, needle rolling equipment, heat setting equipment and edge trimming and rolling equipment. However, before needle rolling, multiple layers of fiber sheets need to be stacked obliquely to form a laying layer, and flattened by a pressing roller and enter the needle rolling equipment for up and down needling.

[0003] However, when the mesh layer is fed into the needle punching equipment, the pressure roller generates forces in multiple directions, such as front and back and up and down, which causes the mesh layer to be relatively dispersed. In addition, the recovery of the fluffiness can easily cause the surface fiber sheets to curl up. Therefore, the mesh layer entering the upper and lower needle plates is very likely to be unevenly stacked or partially stacked, which will cause uneven thickness during needling, seriously affecting the molding quality of the felt. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an improved connecting guide transmission device for a felt laying layer.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A splicing guide and transmission device for a felt laying layer, which is respectively installed on an upper pressing roller and a lower pressing roller that move in opposite directions, wherein the upper pressing roller and the lower pressing roller are respectively provided with a plurality of roller grooves in the circumferential direction, and the plurality of roller grooves are spaced apart along the length direction of each pressing roller. The splicing guide and transmission device comprises an upper guide portion and a lower guide portion, wherein the upper guide portion comprises an upper roller sleeve that is sleeved in the roller groove of the upper pressing roller, an upper guide module formed on the upper roller sleeve and capable of contacting the upper needle pressure plate, and the bottom surface of the upper guide module is flush with the bottom surface of the upper pressing roller; The lower guide part includes a lower roller sleeve arranged in the roller groove of the lower pressure roller, and a lower guide module formed on the lower roller sleeve and capable of contacting the lower needle pressure plate, wherein the top surface of the lower guide module is flush with the top surface of the lower pressure roller, and as the upper pressure roller and the lower pressure roller rotate toward each other, the upper pressure roller and the lower pressure roller rotate freely in the upper roller sleeve and the lower roller sleeve respectively, and keep the upper guide module and the lower guide module relatively pressed against the upper needle pressure plate and the lower needle pressure plate so that a guide channel is formed between the bottom surfaces of multiple upper guide modules and the top surfaces of multiple lower guide modules.

[0007] Preferably, the upper roller sleeve and the upper guide module are integrally formed; the lower roller sleeve and the lower guide module are integrally formed. Based on the integral molding, processing is convenient, and the integral injection molding of plastic or rubber is used, which greatly reduces the cost of using components.

[0008] According to a specific embodiment and preferred aspect of the present invention, the upper roller sleeve comprises an upper sleeve body with an opening at the top that fits within the roller groove of the upper pressure roller, an upper connecting ear formed at the open end of the upper sleeve body, and an upper connector that securely connects the two upper connecting ears. The upper roller sleeve is assembled in a manner similar to a clamp, which is not only convenient but also reduces deformation of the upper roller sleeve, allowing the upper pressure roller to rotate relative to the upper roller sleeve. This allows for needle-feeding guidance without affecting the transmission of the pressure rollers.

[0009] Preferably, the upper guide module comprises an upper extension body with a horizontal bottom surface extending to one side along the tangent direction of the upper sleeve body, and an upper die tip formed at the outer end of the upper extension body and narrowing in width, wherein the upper die tip abuts against the upper needle pressure plate. The upper extension body with different shapes (different widths) increases strength, and the abutment of the upper die tip achieves perfect docking with the upper needle pressure plate.

[0010] In some embodiments, the upper needle pressure plate has an upper matching notch formed at the end thereof, and the upper mold tip mates with the upper matching notch; or the upper extension body and the upper mold tip form an upper matching notch, and the upper needle pressure plate has an upper matching notch mates with the upper matching notch. Regardless of the implementation method, the mate further enhances the stability of the interference, thereby preventing the guide channel from being affected by external forces.

[0011] According to another specific embodiment and preferred aspect of the present invention, the lower roller sleeve includes a lower sleeve body with an opening at the bottom that can be fitted within the roller groove of the lower pressure roller, a lower connecting ear formed at the open end of the lower sleeve body, and a lower connector that securely connects the two lower connecting ears. The lower roller sleeve is installed in a manner similar to that of a clamp assembly, which is not only convenient but also reduces the deformation rate of the lower roller sleeve, thereby allowing the lower pressure roller to rotate relative to the lower roller sleeve. This allows for needle-feeding guidance without affecting the transmission of the pressure roller.

[0012] Preferably, the lower guide module comprises a lower extension body with a horizontal top surface extending to one side along the tangent direction of the lower housing body, and a lower die tip formed at the outer end of the lower extension body and narrowing in width, wherein the lower die tip abuts against the lower needle pressure plate. The lower extension body with different shapes (different widths) increases strength, and the abutment of the lower die tip achieves perfect docking with the upper needle pressure plate.

[0013] In some embodiments, the lower needle pressure plate has a lower matching notch formed at the end thereof, and the lower mold tip mates with the lower matching notch; or the lower extension body and the lower mold tip form a lower matching notch, and the lower needle pressure plate has a matching notch. Regardless of the implementation method, the matching further improves the stability of the interference, thereby preventing the guide channel from being deformed by external forces.

[0014] Preferably, the upper and lower pressing rollers are symmetrically arranged, and the upper and lower guide parts are symmetrically arranged. This ensures that the guide and force positions of the laying layer are aligned, reducing the probability of disorder in the laying layer.

[0015] Furthermore, upper and lower anti-slip venting grooves are provided around the circumference of the upper and lower rollers, respectively. These venting grooves serve two functions: 1. Exhaust; 2. Prevent slippage. Because the web layer still has some bulk, if this cannot be vented during extrusion, the air will be released on both sides of the rollers, increasing the likelihood of web layer dislocation. Prevent slippage is a simple matter of reducing the contact surface to improve forward propulsion force. This is typically achieved through mesh or ridged anti-slip features.

[0016] Due to the implementation of the above technical solution, the utility model has the following advantages compared with the prior art:

[0017] In the process of feeding the web layer into the needling equipment, the pressure roller generates forces in multiple directions such as front and back and up and down, which causes the web layer to be relatively dispersed. In addition, the recovery of fluffiness can easily cause the surface fiber sheets to curl up. Therefore, the web layer entering the upper and lower needle plates is very likely to be unevenly stacked or partially stacked, which will cause uneven thickness during needling, seriously affecting the molding quality of the felt. The utility model designs the connecting guide and transmission device of the felt web layer as a whole, and cleverly solves the shortcomings and defects of the prior art. After adopting the connecting guide and transmission device of the felt web layer, based on the relative rotation of the upper and lower pressure rollers, the upper and lower pressure rollers can rotate freely in the upper roller sleeve and the lower roller sleeve respectively, and keep the upper guide module and the lower guide module relatively pressed against the upper needle pressure plate and the lower needle pressure plate to A guide channel is formed between the bottom surfaces of the multiple upper guide modules and the top surfaces of the multiple lower guide modules, and the web layer maintains translation along the guide channel and enters between the upper and lower needle pressure plates with a low misalignment rate to complete the connection and guidance of the web layer. Therefore, on the one hand, under the premise of meeting the transmission of the pressure roller, the utility model sends the web layer to the needling area in its original stacking state by maintaining the layout of the upper and lower guide parts that are in contact with the upper and lower needle pressure plates and can produce relative rotation with the pressure roller, thereby avoiding the occurrence of misalignment or local stacking of the web layer, thereby improving the feeding stability of the web layer and improving the quality of the felt; on the other hand, based on the design of the roller groove, the gas inside the web layer can be squeezed and discharged synchronously between the pressure rollers, reducing the loosening of the web layer entering and exiting the pressure roller due to gas, thereby improving the feeding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic front view of the connecting guide transmission device of the felt laying layer of this embodiment (including the upper and lower needle pressure plates);

[0019] Figure 2 for Figure 1 A schematic structural diagram of the connecting guide transmission device of the middle felt laying layer;

[0020] Figure 3 for Figure 2 Schematic diagram of the main view;

[0021] Figure 4 for Figure 3 Schematic diagram of the left side;

[0022] Figure 5 for Figure 2 Schematic diagram of the structure of the upper or lower pressure roller;

[0023] Among them: 1, upper pressure roller; g, roller groove; 1a, upper anti-slip exhaust groove;

[0024] 2. Lower pressure roller; 2a. Lower anti-slip exhaust groove;

[0025] 3. Upper guide portion; 30. Upper roller sleeve; 300. Upper sleeve body; 301. Upper connecting ear; 302. Upper connector; 31. Upper guide module; 310. Upper extension body; 311. Upper die tip;

[0026] 4. Lower guide portion; 40. Lower roller sleeve; 400. Lower sleeve body; 401. Lower connecting ear; 402. Lower connector; 41. Lower guide module; 410. Lower extension body; 411. Lower die tip;

[0027] 5. Upper needle pressure plate; 50. Upper matching notch;

[0028] 6. Lower needle pressure plate; 60. Lower matching notch;

[0029] T. Guide channel. DETAILED DESCRIPTION

[0030] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0031] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0033] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0034] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it can mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher horizontal height than the second feature. When a first feature is "below," "below," or "below" a second feature, it can mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower horizontal height than the second feature. It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there can be an intermediate element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there can be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0035] like Figures 1 to 5 As shown, the connecting guide transmission device of the felt laying layer of this embodiment is respectively installed on the upper pressure roller 1 and the lower pressure roller 2 that move in opposite directions, wherein the upper pressure roller 1 and the lower pressure roller 2 are respectively provided with a plurality of roller grooves g in the circumferential direction, and the plurality of roller grooves g are spaced apart along the length direction of each pressure roller, and the connecting guide transmission device includes an upper guide part 3 and a lower guide part 4.

[0036] Specifically, the upper guide part 3 includes an upper roller sleeve 30 that is sleeved in the roller groove g of the upper pressure roller 1, and an upper guide module 31 formed on the upper roller sleeve 30 and capable of contacting the upper needle pressure plate 5. The bottom surface of the upper guide module 31 is flush with the bottom surface of the upper pressure roller 1.

[0037] In this example, the upper roller sleeve 30 and upper guide module 31 are integrally formed. This integrated molding facilitates processing, and the plastic or rubber used for integral injection molding significantly reduces component costs. In some specific embodiments, the upper roller sleeve 30 includes an upper sleeve body 300 with an opening at the top that fits within the roller groove g of the upper pressure roller 1, an upper connecting ear 301 formed at the open end of the upper sleeve body 300, and an upper connector 302 that securely connects the two upper connecting ears 301. The upper roller sleeve is assembled in a manner similar to a clamp, which is convenient and reduces deformation. This allows the upper pressure roller to rotate relative to the upper roller sleeve, enabling needle-feeding guidance without affecting roller transmission. The upper guide module 31 includes an upper extension body 310 with a horizontal bottom surface that extends tangentially to the upper sleeve body 300, and an upper die tip 311 formed at the outer end of the upper extension body 310 and narrows in width. The upper die tip 311 contacts the upper needle pressure plate 5. The strength is increased by the upper extension body of different shapes (different widths), and the perfect docking with the upper needle pressure plate is achieved through the interference of the upper die tip. In some specific embodiments,

[0038] In some specific embodiments, an upper matching notch 50 is formed at the end of the upper needle pressure plate 5, and the upper mold tip 311 matches the upper matching notch 50 (or an upper matching notch is formed between the upper extension body and the upper mold tip, and the end of the upper needle pressure plate matches the upper matching notch). Regardless of the implementation method, the matching further improves the stability of the interference, thereby preventing the guide channel from being affected by external forces and causing changes.

[0039] Specifically, the lower guide part 4 includes a lower roller sleeve 40 that is sleeved in the roller groove g of the lower pressure roller 2, and a lower guide module 41 formed on the lower roller sleeve 40 and capable of contacting the lower needle pressure plate 6. The bottom surface of the lower guide module 41 is flush with the bottom surface of the lower pressure roller 2.

[0040] In this example, the lower roller sleeve 40 and lower guide module 41 are integrally formed. This integrated molding facilitates processing, and the use of plastic or rubber for integral injection molding significantly reduces component costs. In some specific embodiments, the lower roller sleeve 40 includes a lower sleeve body 400 with an opening at the bottom that fits within the roller groove g of the lower pressure roller 2, a lower connecting ear 401 formed at the open end of the lower sleeve body 400, and a lower connecting body 402 that securely connects the two lower connecting ears 401. The lower roller sleeve is assembled in a manner similar to a clamp, which is convenient and reduces deformation of the lower roller sleeve. This allows the lower pressure roller to rotate relative to the lower roller sleeve, enabling needle-feeding and guiding without affecting roller transmission. The lower guide module 41 includes a lower extension body 410 with a horizontal top surface that extends tangentially to the lower sleeve body 400, and a lower die tip 411 formed at the outer end of the lower extension body 410 and having a narrowing width. The lower die tip 411 contacts the lower needle pressure plate 6. The strength is increased by the upper extension body of different shapes (different widths), and the perfect docking with the upper needle pressure plate is achieved through the interference of the upper die tip. In some specific embodiments,

[0041] In some specific embodiments, the end of the lower needle pressure plate 6 forms a lower matching notch 60, and the lower mold tip 411 matches the lower matching notch 60 (or the lower extension body and the lower mold tip form a lower matching notch, and the end of the lower needle pressure plate matches the lower matching notch). Regardless of the implementation method, the matching further improves the stability of the interference, thereby preventing the guide channel from being affected by external forces and causing changes.

[0042] In this example, the upper and lower pressure rollers 1 and 2 are symmetrically arranged vertically; the upper guides 3 and lower guides 4 are also symmetrically arranged vertically. This ensures that the guide and force-bearing positions of the web layer remain aligned, reducing the probability of dislocation in the web layer. Simultaneously, as the upper and lower pressure rollers 1 and 2 rotate toward each other, they rotate freely within the upper and lower roller sleeves 30 and 40, respectively, maintaining the upper and lower guide modules 31 and 41 against the upper and lower needle pressure plates 5 and 6, forming a guide channel T between the bottom surfaces of the upper guide modules 31 and the top surfaces of the lower guide modules 41.

[0043] Furthermore, upper and lower anti-slip venting grooves 1a and 2a are provided circumferentially on the upper and lower rollers 1 and 2, respectively. These venting grooves serve two functions: 1. Exhaust; 2. Prevent slippage. Because the web layer still has some bulk, if this cannot be vented during extrusion, the air will be released on both sides of the rollers, increasing the likelihood of web layer dislocation. Prevent slippage is a simple matter of reducing the contact surface to improve forward propulsion force, typically achieved through mesh or ridged anti-slip features.

[0044] In summary, after adopting the connecting and guiding transmission device of the felt laying layer, based on the relative rotation of the upper and lower pressure rollers, the upper and lower pressure rollers rotate freely in the upper and lower roller sleeves respectively, and keep the upper guide module and the lower guide module relatively pressed against the upper needle pressure plate and the lower needle pressure plate so that a guide channel is formed between the bottom surfaces of the multiple upper guide modules and the top surfaces of the multiple lower guide modules. The laying layer keeps translation along the guide channel and enters between the upper and lower needle pressure plates with a low misalignment rate to complete the connection and guiding of the laying layer. Therefore, on the one hand, the utility model satisfies the transmission of the pressure rollers by maintaining contact with the upper and lower needle pressure plates. The layout of the upper and lower guide parts of the pressing plate and the pressing roller can produce relative rotation, and the laying layer is kept in the original stacking state and sent to the needling area to avoid the phenomenon of dislocation or local stacking of the laying layer, thereby improving the feeding stability of the laying layer and improving the quality of the felt; on the other hand, the design based on the roller groove can also squeeze the gas inside the laying layer between the pressing rollers and discharge it synchronously, reducing the looseness of the laying layer entering and exiting the pressing roller due to gas, thereby improving the feeding quality; thirdly, based on one-piece molding, it is convenient to process, and the plastic or rubber is used for one-piece injection molding, which greatly reduces Low component usage cost; fourthly, the roller sleeve is installed in a manner similar to the hoop assembly, which is not only convenient but also reduces the deformation rate of the roller sleeve, thereby enabling the pressure roller to rotate relative to the roller sleeve, that is, without affecting the transmission of the pressure roller, the needle feeding guide can be implemented; fifthly, the strength is increased by extending the body with different shapes (different widths), and the perfect docking with the needle pressure plate is achieved through the interference of the die tip. At the same time, no matter which implementation method is used, the stability of the interference is further improved by matching, thereby avoiding changes in the guide channel due to external forces; sixthly, the upper and lower pressure rollers are moved up and down Symmetrical setting; the upper guide part and the lower guide part are symmetrically set up, so that the guide and force positions of the laying layer are aligned, reducing the probability of disorder of the laying layer; the seventh aspect is for the anti-slip exhaust groove, which needs to have two functions: 1. Exhaust; 2. Prevent slipping. For exhaust, because the laying layer still has bulk, once the exhaust cannot be performed during extrusion, the gas will be released on both sides of the inlet and outlet rollers, which will increase the probability of disorder of the laying layer; for preventing slipping, this is very simple, that is, to reduce the contact area to improve the forward pushing force, generally such as mesh anti-slip or convex anti-slip.

[0045] The above detailed description of the utility model is intended to enable people familiar with the technology in this field to understand the content of the utility model and implement it. It is not intended to limit the scope of protection of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the scope of protection of the utility model.

Claims

1. A connecting guide transmission device for a felt laying layer, characterized by: The connecting guide transmission device comprises an upper guide portion and a lower guide portion, wherein the upper guide portion comprises an upper roller sleeve mounted in the roller groove of the upper roller, an upper guide module formed on the upper roller sleeve and capable of contacting the upper needle pressure plate, and the bottom surface of the upper guide module is flush with the bottom surface of the upper roller; the lower guide portion comprises an upper roller sleeve mounted in the roller groove of the upper roller, an upper guide module formed on the upper roller sleeve and capable of contacting the upper needle pressure plate, and the bottom surface of the upper guide module is flush with the bottom surface of the upper roller; the lower guide portion comprises an upper roller sleeve mounted in the roller groove of the upper roller, and an upper guide module formed on the upper roller sleeve and capable of contacting the upper needle pressure plate. The lower roller sleeve in the roller groove of the lower pressure roller, and the lower guide module formed on the lower roller sleeve and capable of contacting the lower needle pressure plate, wherein the top surface of the lower guide module is flush with the top surface of the lower pressure roller, and as the upper pressure roller and the lower pressure roller rotate towards each other, the upper pressure roller and the lower pressure roller rotate freely in the upper roller sleeve and the lower roller sleeve respectively, and keep the upper guide module and the lower guide module relatively pressed against the upper needle pressure plate and the lower needle pressure plate so that a guide channel is formed between the bottom surfaces of multiple upper guide modules and the top surfaces of multiple lower guide modules.

2. The connecting, guiding and transmitting device for the felt laying layer according to claim 1, characterized in that: The upper roller sleeve and the upper guide module are integrally formed; the lower roller sleeve and the lower guide module are integrally formed.

3. The connecting, guiding and transmitting device for the felt laying layer according to claim 1, characterized in that: The upper roller sleeve includes an upper sleeve body with an opening at the top and capable of being sleeved in the roller groove of the upper pressure roller, an upper connecting ear formed at the open end of the upper sleeve body, and an upper connecting body that fixedly connects the two upper connecting ears.

4. The connecting, guiding and transmitting device for the felt laying layer according to claim 3, characterized in that: The upper guide module includes an upper extension body with a horizontal bottom surface extending to one side along the tangential direction of the upper sleeve body, and an upper mold tip formed at the outer end of the upper extension body and narrowed in width, wherein the upper mold tip abuts against the upper needle pressure plate.

5. The connecting, guiding and transmitting device for the felt laying layer according to claim 4, characterized in that: An upper matching notch is formed at the end of the upper needle pressure plate, and the upper die tip matches the upper matching notch; or an upper matching notch is formed between the upper extension body and the upper die tip, and the end of the upper needle pressure plate matches the upper matching notch.

6. The connecting, guiding and transmitting device for the felt laying layer according to claim 1, characterized in that: The lower roller sleeve includes a lower sleeve body with an opening at the bottom and capable of being sleeved in the roller groove of the lower pressure roller, a lower connecting ear formed at the open end of the lower sleeve body, and a lower connecting body that fixedly connects the two lower connecting ears.

7. The connecting, guiding and transmitting device for the felt laying layer according to claim 6, characterized in that: The lower guide module includes a lower extension body with a horizontal top surface extending to one side along the tangent direction of the lower sleeve body, and a lower mold tip formed at the outer end of the lower extension body and narrowed in width, wherein the lower mold tip abuts against the lower needle pressure plate.

8. The connecting, guiding and transmitting device for the felt laying layer according to claim 7, characterized in that: The end of the lower needle pressure plate forms a lower matching notch, and the lower mold tip matches the lower matching notch; or the lower extension body and the lower mold tip form a lower matching notch, and the end of the lower needle pressure plate matches the lower matching notch.

9. The connecting, guiding and transmitting device for the felt laying layer according to claim 1, characterized in that: The upper pressing roller and the lower pressing roller are symmetrically arranged in the upper and lower directions; the upper guiding part and the lower guiding part are symmetrically arranged in the upper and lower directions.

10. The connecting, guiding and transmitting device for the felt laying layer according to claim 1, characterized in that: An upper anti-skid exhaust groove and a lower anti-skid exhaust groove are respectively provided on the circumference of the upper pressing roller and the lower pressing roller.

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