Feeding system and process of felt pavement layer

Abstract

The invention discloses a feeding system and process for a felt pavement layer. The system comprises a lapping unit, a feeding guide unit and a transfer bearing platform. On one hand, on the basis of the feeding requirements that the distance is not changed, a conveying path formed by the arc-shaped conveying feeding face is changed and lengthened, lapping layers with different thicknesses and different layers are increased, meanwhile, transition of the horizontal conveying face and the downwards-inclined conveying face is adopted, and the adjusting range of the inclined stacking angle is increased; the feeding practicability of the lapping layer is greatly improved; on the other hand, on the premise of meeting the conveying requirement of the feeding roller, based on the layout of the roller groove, the upper guide piece and the lower guide piece, a channel which is formed by the vertically-distributed guide modules and is flush with the conveying face of the feeding roller is used for guiding, and the phenomenon of dislocation or local stacking of lapping layers is avoided; and meanwhile, gas can be discharged to the roller grooves during feeding and extruding, the phenomenon that the interior of a lapping layer entering and exiting from the feeding roller is loosened due to the gas is reduced, and the lapping layer is fed into a needling channel in the original stacked state.

Description

Technical Field

[0001] The invention belongs to the technical field of preparation of novel fibers and composite materials, and in particular relates to a feeding system for a felt pavement layer, and also relates to a feeding process for the felt pavement layer. Background Art

[0002] At present, the production line of aerogel felt (felt cloth or pre-oxidized fiber felt) is usually composed of pretreatment equipment, feeding equipment, needle pressing equipment, heat setting equipment and edge trimming and rolling equipment, etc., wherein before the fiber web formed by pretreatment enters the needling, multiple layers of fiber mesh need to be stacked to form a laying layer, and then the laying layer is fed into the needling channel formed by the upper needle template and the lower needle template through the feeding roller, and then the needle pressing equipment performs up and down puncture.

[0003] However, in actual operation, there are the following technical defects:

[0004] 1) Most manufacturers use the inclined stacking method for horizontal push feeding. However, based on the requirements for the number of plywood layers and the change in the plywood height, if the transmission path is changed, it is difficult to meet the use requirements by simply changing the inclination angle of the plywood layer, which brings great inconvenience to the actual feeding;

[0005] 2) When the web layer is fed into the needle punching equipment, the feeding 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 the 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 needle punching, seriously affecting the molding quality of the felt. Summary of the invention

[0006] The object of the present invention is to overcome the deficiencies of the prior art and to provide an improved feeding system for a felt pavement layer.

[0007] At the same time, the invention also relates to a feeding process for the felt paving layer.

[0008] To achieve the above object, the present invention adopts the following scheme:

[0009] A feeding system for a felt pavement layer, comprising a web laying unit and a feeding guide unit, wherein the web laying unit comprises an output conveyor belt group and a connecting conveyor belt group, the feeding guide unit comprises an upper feeding roller and a lower feeding roller arranged up and down and facing each other, in particular, the connecting conveyor belt group comprises an upper connecting conveyor belt and a lower connecting conveyor belt which move towards each other and transmit the web laying layer to between the upper feeding roller and the lower feeding roller, wherein a connecting channel is formed between the upper connecting conveyor belt and the lower connecting conveyor belt, and the connecting channel gradually becomes smaller along the feeding direction; the output conveyor belt group comprises a horizontal conveying surface The first endless belt and the downward inclined transmission surface, the second endless belt located at the inclined end of the first endless belt and capable of adjusting the inclination angle and height, wherein the second endless belt connects the first endless belt and the lower connecting transmission belt, the inclined transmission surface of the first endless belt, the transmission surface of the second endless belt, and the transmission surface of the lower connecting transmission belt form a transmission feeding surface with the same direction and an opening upwardly facing arc-shaped transmission path, and the multi-layer fiber webs are stacked on the feeding surface in sequence along the front and rear feeding direction while being tilted forward, so that the fiber webs maintain the same number of layers to enter the receiving channel; the upper feeding roller and the lower feeding roller A plurality of roller grooves are respectively arranged on the circumference of the material roller, and the plurality of roller grooves are spaced apart along the length direction of each feeding roller, and the feeding guide unit also includes an upper guide piece and a lower guide piece, wherein the upper guide piece includes an upper roller sleeve sleeved in the roller groove of the upper feeding roller, an upper guide module formed on the upper roller sleeve and capable of abutting against the upper needle template, and the bottom surface of the upper guide module is flush with the bottom surface of the upper feeding roller; the lower guide piece includes a lower roller sleeve sleeved in the roller groove of the lower feeding roller, a lower guide module formed on the lower roller sleeve and capable of abutting against the lower needle template Module, wherein the top surface of the lower guide module is flush with the top surface of the lower feeding roller, and as the upper feeding roller and the lower feeding roller rotate toward each other, the upper feeding roller and the lower feeding 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 template and the lower needle template 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 feeding system also includes a transfer receiving platform arranged between the receiving channel and the feeding channel formed by the upper feeding roller and the lower feeding roller.

[0010] Preferably, the input end and the output end of the first endless belt are adjusted up and down respectively. Based on the height adjustment, further assistance is provided to meet the requirements of laying nets of different heights and layers.

[0011] Furthermore, two pull rods are provided at the two shaft ends of the input end and the output end, respectively, and a power device for driving the pull rod to move up and down is also provided above the first annular belt. There are many ways to drive the pull rod to rise and fall. In some specific embodiments, the power device is a winch, wherein the traction end of the winch is fixedly connected to the upper end of the pull rod. The winch is a conventional wire winch.

[0012] According to a specific implementation and preferred aspect of the present invention, the first endless belt, the upper connecting conveyor belt and the lower connecting conveyor belt are all endless crawlers; the second endless belt is an endless crawler or an endless belt. Transmission based on the endless crawler not only provides relative resistance to facilitate the stacking of the laying layer, but also avoids slipping during the transmission process. Of course, partial endless belts can also be used for transmission to increase transmission efficiency.

[0013] Preferably, the endless track comprises an endless track body and anti-skid strips formed on the endless track body.

[0014] According to another specific implementation and preferred aspect of the present invention, the receiving output ends of the upper connecting conveyor belt and the lower connecting conveyor belt are aligned vertically; in the orthographic projection of its own width, the receiving input end of the lower connecting conveyor belt is located in front of the receiving input end of the upper connecting conveyor belt. The lower connecting conveyor belt is used for connection first, so that no matter how thick the paving net is, it can enter the receiving channel.

[0015] Preferably, the receiving input ends of the upper connecting conveyor belt and the lower connecting conveyor belt are respectively rotated and adjusted around the receiving output ends to change the opening size of the receiving channel to meet the needs of receiving and extruding webs of different thicknesses.

[0016] Furthermore, the second endless belt itself can be lifted up and down and can be rotated and adjusted around the shaft end close to the first endless belt. The first endless belt and the lower connecting conveyor belt are connected based on the angle and height adjustment of the second endless belt.

[0017] According to another specific implementation and preferred aspect of the present invention, the upper second annular belt is installed on the frame, the frame is installed on the base for rotation and lifting from the front end, and the frame is lifted and lowered on the base around the front end from the rear end, wherein a rotating arm is provided at the rear end of the frame, and a connecting arm and a telescopic rod moving along the front and rear directions are provided on the base, wherein the rotating arm and the connecting arm are connected by rotation from the end, the top of the telescopic rod is fixed to the rotating connection point of the rotating arm and the connecting arm, and during the telescopic movement of the telescopic rod, the rotating arm and the connecting arm relatively lift or lower the rear end of the frame. First, since the laying layer looks thick but is very light, the rotation and lifting adopted do not need to bear excessive pressure; secondly, the angle and height formed are small adjustments, and the controllability is strong; finally, the frame and the base can be relatively limited based on the position of the telescopic rod, and the combination of lifting and rotating adopted at the front end is also convenient to implement (the bottom is the telescopic rod, and the top is the rotating seat rotatably installed on the top of the telescopic rod, wherein the rotating seat is fixed at the front end of the frame).

[0018] 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 forming, processing is convenient, and the integral injection molding of plastic or rubber is adopted, which greatly reduces the cost of using components.

[0019] According to another specific implementation and preferred aspect of the present invention, the upper roller sleeve includes an upper ring with an opening formed at the top and capable of being sleeved in the roller groove of the upper feeding roller, an upper ear formed at the open end of the upper ring, and an upper connector that fixedly connects the two upper ears. The upper 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 upper roller sleeve, thereby allowing the upper feeding roller to rotate relative to the upper roller sleeve, that is, the needle feeding guide can be implemented without affecting the transmission of the feeding roller.

[0020] 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 ferrule, and an upper die tip formed at the outer end of the upper extension body and narrowed in width, wherein the upper die tip abuts against the upper needle template. The strength is increased by the upper extension body of different shapes (different widths), and the perfect docking with the upper needle template is achieved by the abutment of the upper die tip.

[0021] In some specific embodiments, the upper needle template end forms an upper matching notch, and the upper mold tip matches the upper matching notch; or the upper extension body and the upper mold tip form an upper matching notch, and the upper needle template end matches the upper matching notch. Regardless of which implementation method is used, the matching further improves the stability of the interference, thereby preventing the guide channel from being changed by external force.

[0022] According to another specific implementation and preferred aspect of the present invention, the lower roller sleeve includes a lower ring with an opening formed at the bottom and capable of being sleeved in the roller groove of the lower feeding roller, a lower ear formed at the open end of the lower ring, and a lower connector that fixedly connects the two lower ears. The lower 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 lower roller sleeve, thereby allowing the lower feeding roller to rotate relative to the lower roller sleeve, that is, the needle-punching feeding guide can be implemented without affecting the transmission of the feeding roller.

[0023] 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 ferrule, and a lower die tip formed at the outer end of the lower extension body and narrowed in width, wherein the lower die tip abuts against the lower needle template. The strength is increased by lower extension bodies of different shapes (different widths), and perfect docking with the upper needle template is achieved by the abutment of the lower die tip.

[0024] In some specific embodiments, the end of the lower needle template 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 template matches the lower matching notch. Regardless of which implementation method is used, the matching further improves the stability of the interference, thereby preventing the guide channel from being changed by external force.

[0025] Preferably, the upper feeding roller and the lower feeding roller are symmetrically arranged up and down; the upper guide plate and the lower guide plate are symmetrically arranged up and down, so that the guide and force positions of the laying layer are kept aligned, reducing the probability of disorder of the laying layer.

[0026] In addition, upper and lower rib grooves are provided on the circumference of the upper and lower feed rollers, respectively. Here, the rib grooves need to have two functions: 1. exhaust; 2. prevent slipping. Regarding exhaust, because the web layer is still fluffy, once exhaust cannot be performed during extrusion, the gas will be released on both sides of the inlet and outlet feed rollers, which will increase the probability of disorder in the web layer; regarding preventing slipping, this is very simple, that is, reducing the contact surface to improve the force of pushing forward, generally such as anti-skid mesh or convex anti-skid.

[0027] Preferably, the cross-section of the transfer platform is T-shaped, wherein the top surface of the T-shape forms a transfer support surface, and downwardly curved protective folds are formed on the front and rear sides of the transfer support surface.

[0028] Another technical solution of the present invention is: a feeding process for a felt pavement layer, which adopts the above-mentioned feeding system and comprises the following steps:

[0029] S1. Formation and transmission of the web layer

[0030] Based on the inclined transmission surface of the first endless belt, the transmission surface of the second endless belt, and the transmission surface of the lower connecting transmission belt, the three form a transmission feeding surface with the same direction and the transmission path being an arc-shaped transmission feeding surface with an opening facing upward, multiple layers of fiber webs are stacked on the feeding surface in sequence along the front and rear feeding direction while being tilted forward, so that the fiber webs maintain the same number of layers entering the receiving channel, thereby realizing continuous supply of the laying layer;

[0031] S2. Guiding and feeding of the laying layer

[0032] The web layer is transmitted forward between the upper feeding roller and the lower feeding roller, and the upper feeding roller and the lower feeding 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 template and the lower needle template 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 web layer keeps translation along the guide channel and enters between the upper and lower needle templates with a low misalignment rate to complete the feeding of the web layer.

[0033] Due to the application of the above-mentioned technology and equipment solutions, the present invention has the following advantages compared with the prior art:

[0034] In the existing feeding process of the web layer, the web is tilted and stacked in a horizontal push-type feeding manner. However, based on the requirements of the number of web layers and the change of web height required for use, if the transmission path is changed, it is difficult to meet the use needs by simply changing the inclination angle of the web layer, which brings great inconvenience to the actual feeding. In the process of feeding the web layer into the needle punching equipment, the web layer is relatively dispersed due to the force generated by the feeding roller in multiple directions such as front and back and up and down. In addition, the recovery of the bulkiness can easily cause the surface fiber sheets to warp. Therefore, the web layer entering the upper and lower needle plates is likely to be unevenly stacked or partially stacked. This The above problems will cause uneven thickness when needling, which seriously affects the molding quality of the felt. The present application designs the feeding system of the felt pavement layer as a whole, and cleverly solves the shortcomings and defects of the prior art. After adopting the feeding system of the felt pavement layer, firstly, based on the inclined transmission surface of the first annular belt, the transmission surface of the second annular belt, and the transmission surface of the lower connecting transmission belt, the three form a transmission feeding surface with the same direction and an opening upward in the transmission path, and the multi-layer fiber mesh is stacked on the feeding surface in sequence along the front and rear feeding direction while being tilted forward, so that the fiber mesh maintains the same number of layers to enter the receiving channel, thereby realizing a continuous supply of the pavement layer; secondly, The web-laying layer is transmitted forward to between the upper feeding roller and the lower feeding roller, and the upper feeding roller and the lower feeding roller are freely rotated in the upper roller sleeve and the lower roller sleeve respectively, and the upper guide module and the lower guide module are kept relatively close to the upper needle template and the lower needle template 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 web-laying layer keeps translation along the guide channel and enters between the upper and lower needle templates with a low misalignment rate to complete the feeding of the web-laying layer. Therefore, compared with the prior art, the present invention is based on the change and lengthening of the transmission path formed by the opening upward arc transmission feeding surface based on the unchanged spacing, and increases the number of layers with different thicknesses. The feeding needs of the laid mesh layer are met, and the transition between the horizontal transmission surface and the downward inclined transmission surface is adopted to increase the adjustment range of the inclined stacking angle, so as to greatly improve the practicability of the feeding of the laid mesh layer; on the other hand, under the premise of meeting the transmission of the feeding roller, based on the layout of the roller groove and the upper and lower guide plates, the channel flush with the transmission surface of the feeding roller is formed by the upper and lower distributed guide modules for guidance, so as to avoid the phenomenon of misalignment or partial stacking of the laid mesh layer. At the same time, the gas can be discharged to the roller groove while feeding and squeezing, so as to reduce the loosening of the laid mesh layer entering and exiting the feeding roller due to the gas, and the laid mesh layer is kept in the original stacking state and sent into the acupuncture channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a front view schematic diagram of the feeding system of the felt pavement layer of this embodiment;

[0036] Figure 2 for Figure 1 A schematic front view of the first annular belt in the middle (enlarged);

[0037] Figure 3 for Figure 1 A schematic diagram of the main view of the middle connecting conveyor belt group (enlarged);

[0038] Figure 4 for Figure 1 Schematic diagram of the three-dimensional structure of the middle feeding guide unit;

[0039] Figure 5 for Figure 4 A schematic diagram of the main view;

[0040] Figure 6 for Figure 5 Schematic diagram of the left side;

[0041] Figure 7 for Figure 4 Schematic diagram of the structure of the middle feeding roller;

[0042] Figure 8 for Figure 4 A schematic diagram of the structure of the middle guide portion;

[0043] Fig. 9 for Figure 8 A schematic diagram of the front view of the middle and upper guide plates;

[0044] Among them: ①, web laying unit; 1, output conveyor belt group; 11, first annular belt; 11a, horizontal conveyor surface; 11b, inclined conveyor surface; 11c, input end; 11d, output end; 12, second annular belt; g, pull rod; q, power device; 12b, 21b, conveyor surface; 2, connecting conveyor belt group; 20, upper connecting conveyor belt; 21, lower connecting conveyor belt; J, receiving channel; 9, stand; A, base; B, rotating arm; E, connecting arm; F, s, telescopic rod; z, rotating seat; m, transmission feeding surface; p, fiber mesh; e1, annular belt body; e2, anti-skid shoe strip; G, stand; h1, arc groove; h2, sliding seat;

[0045] ②, feeding guide unit; 3, upper feeding roller; 3a, upper rib groove; 4, lower feeding roller; 4a, lower rib groove; g, roller groove; 5, upper guide plate; 50, upper roller sleeve; 500, upper ring; 501, upper ear; 502, upper connector; 51, upper guide module; 510, upper extension body; 511, upper die tip; 6, lower guide plate; 60, lower roller sleeve; 600, lower ring; 601, lower ear; 602, lower connector; 61, lower guide module; 610, lower extension body; 611, lower die tip; 7, upper needle template; 70, upper matching notch; 8, lower needle template; 80, lower matching notch; D, guide channel; Z, acupuncture channel; W, feeding channel;

[0046] ③. Transfer and acceptance platform;

[0047] M, mesh layer; p, fiber mesh. DETAILED DESCRIPTION

[0048] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0049] 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 referred device or element 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.

[0050] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0051] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0052] In the present application, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature may be that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature may be that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. It should be noted that when an element is referred to as "fixed to" or "set on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0053] like Figure 1 As shown, the feeding system of the felt paving layer of the present embodiment comprises a laying unit ①, a feeding guide unit ② and a transfer receiving platform ③, wherein the laying unit ① comprises an output conveyor belt group 1 and a connecting conveyor belt group 2, and the feeding guide unit ② comprises an upper feeding roller 3 and a lower feeding roller 4, an upper guide plate 5 and a lower guide plate 6 arranged up and down and facing each other, and a laying layer M is formed by stacking the fiber webs, and then the laying layer is output by the output conveyor belt group 1 and the connecting conveyor belt group 2, and transferred by the transfer receiving platform ③ to the feeding channel W formed by the upper feeding roller 3 and the lower feeding roller 4, and then the laying layer M is sent to the needling channel Z formed by the upper needle template 7 and the lower needle template 8 through the guide channel D formed by the upper guide plate 5 and the lower guide plate 6.

[0054] Combination Figure 2 and Figure 3As shown, the connecting conveyor belt group 2 includes an upper connecting conveyor belt 20 and a lower connecting conveyor belt 21 which move toward each other and convey the laid web layer M between the upper feeding roller 3 and the lower feeding roller 4, wherein a connecting channel J is formed between the upper connecting conveyor belt 20 and the lower connecting conveyor belt 21, and the connecting channel J gradually becomes smaller along the feeding direction; the output conveyor belt group 1 includes a first endless belt 11 formed with a horizontal conveying surface 11a and a downward inclined conveying surface 11b, and a first endless belt 11 located at the inclined end of the first endless belt 11 and capable of adjusting the inclination angle and A second annular belt 12 of a certain height, wherein the second annular belt 12 connects the first annular belt 11 and the lower connecting conveyor belt 21, the inclined conveying surface 11b of the first annular belt 11, the conveying surface 12a of the second annular belt 12 and the conveying surface 21a of the lower connecting conveyor belt 21 form an arc-shaped conveying feeding surface m with the same direction and the conveying path being open upward, and multiple layers of fiber webs are stacked on the feeding surface m in sequence while being tilted forward along the front and rear feeding directions, so that the fiber webs maintain the same number of layers and enter the receiving channel J.

[0055] In some specific embodiments, the input end 11c and the output end 11d of the first endless belt 11 are respectively adjusted up and down. Based on the height adjustment, further assistance is provided to meet the requirements of laying nets of different heights and layers. Furthermore, two pull rods g are respectively provided at the two shaft ends of the input end 11c and the output end 11d, and a power device q is also provided above the first endless belt 11 to drive the pull rod g to move up and down. There are many ways to drive the pull rod g to rise and fall. In some specific embodiments, the power device q is a winch, wherein the traction end of the winch q is fixedly connected to the upper end of the pull rod g. The winch is a conventional wire winch. The second endless belt 12 is located at the inclined end of the first endless belt 11 and can adjust the inclination angle and its own height. Specifically, the second endless belt 12 itself can rise and fall and can be rotated and adjusted around the shaft end close to the first endless belt 11, that is, the first endless belt and the lower connecting conveyor belt are connected based on the angle and height adjustment of the second endless belt.

[0056] In this example, the inclined transmission surface 11b of the first endless belt 11, the transmission surface 12b of the second endless belt 12, and the transmission surface 22b of the lower connecting conveyor belt 21 form a transmission feeding surface m with the same direction and an opening upwardly facing transmission path. The multiple layers of fiber webs p are stacked on the feeding surface in sequence while being tilted forward along the front and rear feeding directions, so that the fiber webs p maintain the same number of layers entering the receiving channel J. The first endless belt 11, the upper connecting conveyor belt 20, and the lower connecting conveyor belt 21 are all endless crawlers; the second endless belt 12 is an endless crawler or an endless belt. Transmission based on the endless crawler not only provides relative resistance and facilitates the stacking of the web layers, but also avoids slipping during the transmission process. Of course, partial endless belts can also be used for transmission to increase transmission efficiency. The endless crawler includes an endless belt body e1 and an anti-skid shoe strip e2 formed on the endless belt body e1.

[0057] In some specific embodiments, the second annular belt 12 is installed on the frame 9, and the frame 9 is installed on the base A so as to rotate and rise and fall from the front end, and the frame 9 is rotated and lifted around the front end from the rear end on the base A, wherein a rotating arm B is provided at the rear end of the frame 9, and a connecting arm E and a telescopic rod F moving along the front and rear directions are provided on the base A, wherein the rotating arm B and the connecting arm E are rotatably connected from the ends, and the top end of the telescopic rod F is fixed to the rotating connection point of the rotating arm B and the connecting arm E, and during the telescopic movement of the telescopic rod F, the rotating arm B and the connecting arm E relatively lift or lower the rear end of the frame 9. Firstly, since the mesh layer looks thick but is very light, the rotation and lifting used do not need to bear excessive pressure; secondly, the angles and heights formed are small adjustments with strong controllability; finally, the frame and the base can be relatively limited based on the position of the telescopic rod, and the combination of lifting and rotation used at the front end is also easy to implement (the bottom of the front end of the frame 9 is also the telescopic rod s, and the top is a rotating seat z rotatably installed on the top of the telescopic rod s, where the rotating seat z is fixed to the front end of the frame 9).

[0058] In addition, the receiving output ends of the upper connecting conveyor belt 20 and the lower connecting conveyor belt 21 are aligned vertically; in the orthographic projection of its own width, the receiving input end of the lower connecting conveyor belt 21 is located in front of the receiving input end of the upper connecting conveyor belt 20. The lower connecting conveyor belt is used for docking first, so that no matter how thick the laid net is, it can enter the receiving channel. The receiving input ends of the upper connecting conveyor belt 20 and the lower connecting conveyor belt 21 are respectively rotated and adjusted around the receiving output end to change the opening size of the receiving channel J. To meet the needs of receiving and extruding laid nets of different thicknesses. Specifically, an arc groove h1 is provided on the corresponding frame G, and a sliding seat h2 is correspondingly provided at the receiving input end of the upper connecting conveyor belt 20 and the lower connecting conveyor belt 21. Based on the movement of the sliding seat h2 in the arc groove h1, an external connection part is used to relatively lock them.

[0059] Combination Figures 4 to 9 As shown, a plurality of roller grooves g are respectively provided on the circumference of the upper feeding roller 3 and the lower feeding roller 4, and the plurality of roller grooves g are spaced apart along the length direction of each feeding roller, and the connecting guide transmission device includes an upper guide plate 5 and a lower guide plate 6.

[0060] Specifically, the upper guide plate 5 includes an upper roller sleeve 50 that is sleeved in the roller groove g of the upper feeding roller 3, and an upper guide module 51 formed on the upper roller sleeve 50 and capable of abutting against the upper needle template 7, and the bottom surface of the upper guide module 51 is flush with the bottom surface of the upper feeding roller 3.

[0061] In this example, the upper roller sleeve 50 and the upper guide module 51 are integrally formed, which is convenient for processing. In addition, the plastic or rubber is used for integral injection molding, which greatly reduces the cost of using components. In some specific embodiments, the upper roller sleeve 50 includes an upper ring 500 with an opening formed on the top and can be sleeved in the roller groove g of the upper feeding roller 3, an upper ear 501 formed at the open end of the upper ring 500, and an upper connector 502 that fixes the two upper ears 501. The upper 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 upper roller sleeve, so that the upper feeding roller can rotate relative to the upper roller sleeve, that is, the needle-punching feeding guide can be implemented without affecting the transmission of the feeding roller. The upper guide module 51 includes an upper extension body 510 with a horizontal bottom surface and extending to one side along the tangent direction of the upper ring 500, and an upper die tip 511 formed at the outer end of the upper extension body 510 and narrowed in width, wherein the upper die tip 511 abuts against the upper needle template 7. The strength is increased by the upper extension body of different shapes (different widths), and the perfect docking with the upper needle template is achieved through the interference of the upper mold tip. In some specific embodiments,

[0062] In some specific embodiments, the upper needle template 7 forms an upper matching notch 70 at the end thereof, and the upper mold tip 511 matches the upper matching notch 70 (or the upper extension body and the upper mold tip form an upper matching notch, and the upper needle template end 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 changed by external force.

[0063] Specifically, the lower guide plate 6 includes a lower roller sleeve 60 that is sleeved in the roller groove g of the lower feeding roller 4, and a lower guide module 61 formed on the lower roller sleeve 60 and capable of abutting against the lower needle template 8, and the bottom surface of the lower guide module 61 is flush with the bottom surface of the lower feeding roller 4.

[0064] In this example, the lower roller sleeve 60 and the lower guide module 61 are integrally formed, which is convenient for processing. In addition, the plastic or rubber is used for integral injection molding, which greatly reduces the cost of using components. In some specific embodiments, the lower roller sleeve 60 includes a lower ring 600 with an opening at the bottom and can be sleeved in the roller groove g of the lower feeding roller 4, a lower ear 601 formed at the open end of the lower ring 600, and a lower connector 602 that fixes the two lower ears 601. The installation of the lower roller sleeve is carried out in a manner similar to the hoop assembly, which is not only convenient, but also reduces the deformation rate of the lower roller sleeve, so that the lower feeding roller can rotate relative to the lower roller sleeve, that is, the needling feeding guide can be implemented without affecting the transmission of the feeding roller. The lower guide module 61 includes a lower extension body 610 with a horizontal top surface and extending to one side along the tangent direction of the lower ring 600, and a lower die tip 611 formed at the outer end of the lower extension body 610 and narrowed in width, wherein the lower die tip 611 abuts against the lower needle template 8. The strength is increased by the upper extension body of different shapes (different widths), and the perfect docking with the upper needle template is achieved through the interference of the upper mold tip. In some specific embodiments,

[0065] In some specific embodiments, the end of the lower needle template 8 forms a lower matching notch 80, and the lower mold tip 611 matches the lower matching notch 80 (or the lower extension body and the lower mold tip form a lower matching notch, and the end of the lower needle template matches the lower matching notch). Regardless of the implementation method, the stability of the interference is further improved by matching, thereby preventing the guide channel from being changed by external force.

[0066] In this example, the upper feed roller 3 and the lower feed roller 4 are symmetrically arranged up and down; the upper guide plate 5 and the lower guide plate 6 are symmetrically arranged up and down. In this way, the guide and force positions of the web-laying layer are kept aligned, reducing the probability of disorder of the web-laying layer. At the same time, as the upper feed roller 3 and the lower feed roller 4 rotate toward each other, the upper feed roller 3 and the lower feed roller 4 rotate freely in the upper roller sleeve 50 and the lower roller sleeve 60 respectively, and keep the upper guide module 51 and the lower guide module 61 relatively pressed against the upper needle template 7 and the lower needle template 8 so that a guide channel D is formed between the bottom surfaces of the multiple upper guide modules 51 and the top surfaces of the multiple lower guide modules 61.

[0067] In addition, upper rib grooves 3a and lower rib grooves 4a are provided on the circumference of the upper feed roller 3 and the lower feed roller 4, respectively. Here, the rib grooves need to have two functions: 1. exhaust; 2. prevent slipping. Regarding exhaust, because the web layer still has a certain degree of bulkiness, once exhaust cannot be performed during extrusion, the gas will be released on both sides of the inlet and outlet feed rollers, which will increase the probability of disorder of the web layer; regarding preventing slipping, this is very simple, that is, reducing the contact surface to improve the force of pushing forward, generally such as anti-skid mesh or convex anti-skid.

[0068] The cross section of the transfer platform ③ is T-shaped, wherein the top surface of the T-shape forms the transfer support surface, and downwardly curved protective folds are formed on the front and rear sides of the transfer support surface.

[0069] In summary, the implementation steps of this embodiment include the following:

[0070] S1. Formation and transmission of the web layer

[0071] Based on the inclined transmission surface of the first endless belt, the transmission surface of the second endless belt, and the transmission surface of the lower connecting transmission belt, the three form a transmission feeding surface with the same direction and the transmission path being an arc-shaped transmission feeding surface with an opening facing upward, multiple layers of fiber webs are stacked on the feeding surface in sequence along the front and rear feeding direction while being tilted forward, so that the fiber webs maintain the same number of layers entering the receiving channel, thereby realizing continuous supply of the laying layer;

[0072] S2. Guiding and feeding of the laying layer

[0073] The web layer is transmitted forward between the upper feeding roller and the lower feeding roller, and the upper feeding roller and the lower feeding 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 template and the lower needle template 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 web layer keeps translation along the guide channel and enters between the upper and lower needle templates with a low misalignment rate to complete the feeding of the web layer.

[0074] Therefore, on the one hand, the present invention increases the feeding needs of laying layers with different thicknesses and different numbers of layers based on the change and lengthening of the transmission path formed by the upwardly opened arc-shaped transmission feeding surface with unchanged spacing, and at the same time adopts the transition between the horizontal transmission surface and the downwardly inclined transmission surface to increase the adjustment range of the inclined stacking angle, so as to greatly improve the practicability of feeding the laying layer; on the other hand, under the premise of satisfying the transmission of the feeding roller, based on the layout of the roller groove and the upper and lower guide plates, the channel flush with the transmission surface of the feeding roller formed by the upper and lower distributed guide modules is guided to avoid the phenomenon of misalignment or partial stacking of the laying layer, and at the same time, the gas can be discharged to the roller groove while the feeding is squeezed, so as to reduce the loosening of the laying layer entering and exiting the feeding roller due to the gas, and the laying layer The layers maintain their original stacking state and are sent into the acupuncture channel; on the third aspect, the height output is adjusted based on the lifting of the pull rod to further increase the adjustment range of the inclination angle. At the same time, the power device is a winch, and the price is lifted based on the traction of the steel wire, which is easy to operate and has low cost; based on the transmission of the ring crawler, it not only provides relative resistance and is conducive to the stacking of the laying network layer, but also avoids slipping during the transmission process. Of course, some ring belts can also be used for transmission to increase the transmission efficiency; on the fourth aspect, the lower connecting conveyor belt is used for docking first, so that no matter how thick the laying network is, it can enter the receiving channel. At the same time, the receiving input ends of the upper connecting conveyor belt and the lower connecting conveyor belt are respectively rotated around the receiving output end to adjust the setting to change the opening size of the receiving channel to meet different Thickness of the web laying needs to be guided and extruded; the fifth aspect is based on the angle and height adjustment of the second annular belt to connect the first annular belt and the lower connecting conveyor belt. Specifically, the second annular belt is installed on the frame, and the frame is installed on the base to rotate and lift up and down from the front end, and the frame is rotated and lifted around the front end from the rear end on the base, wherein a rotating arm is provided at the rear end of the frame, and a connecting arm and a telescopic rod moving along the front and rear directions are provided on the base, wherein the rotating arm and the connecting arm are rotatably connected from the ends, and the top of the telescopic rod is fixed to the rotating connection point of the rotating arm and the connecting arm, and in the telescopic movement of the telescopic rod, the rotating arm and the connecting arm relatively lift or lower the rear end of the frame, that is to say, first of all, because the web laying layer looks thick, but the weight is very light, the rotation and lifting adopted do not need Bearing excessive pressure; secondly, the angle and height formed are small adjustments with strong controllability; finally, the frame and the base can be relatively limited based on the position of the telescopic rod, and the combination of lifting and rotating adopted at the front end is also convenient to implement (the bottom is the telescopic rod, and the top is a rotating seat rotatably installed on the top of the telescopic rod, wherein the rotating seat is fixed at the front end of the frame); the sixth aspect is based on one-piece molding, which is convenient for processing, and the plastic or rubber is used for one-piece injection molding, which greatly reduces the cost of using components; 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, so that the pressure roller can rotate relative to the roller sleeve, that is, without affecting the transmission of the pressure roller, the acupuncture feeding guide can be implemented;The strength is increased by extending the body with different shapes (different widths), and the perfect docking with the needle template is achieved through the contact of the die tip. At the same time, no matter which implementation method is used, the stability of the contact is further improved through the matching, so as to avoid the change of the guide channel due to external force; the seventh aspect is that the upper and lower pressure rollers are symmetrically arranged up and down; the upper and lower guide plates are symmetrically arranged up and down, so that the guide and force positions of the laying layer are aligned, reducing the probability of disorder of the laying layer; the eighth aspect is that the rib grooves need to have two functions: 1. Exhaust; 2. Prevent slipping. For exhaust, because the laying layer is still fluffy, once 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, reducing the contact surface to improve the force of pushing forward, generally such as mesh anti-skid or convex rib anti-skid. ;

[0075] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A feeding system for a felt pavement layer, comprising a laying unit and a feeding guide unit, wherein the laying unit comprises an output conveyor belt group and a connecting conveyor belt group, and the feeding guide unit comprises an upper feeding roller and a lower feeding roller arranged in an upper and lower direction, characterized in that: The connecting conveyor belt group includes an upper connecting conveyor belt and a lower connecting conveyor belt which move towards each other and transmit the laid web layer to between the upper feeding roller and the lower feeding roller, wherein a receiving channel is formed between the upper connecting conveyor belt and the lower connecting conveyor belt, and the receiving channel gradually becomes smaller along the feeding direction; the output conveyor belt group includes a first endless belt formed with a horizontal transmission surface and a downward inclined transmission surface, and a second endless belt located at the inclined end of the first endless belt and capable of adjusting the inclination angle and height, wherein the second endless belt connects the first endless belt and the lower connecting conveyor belt, and the inclined transmission surface of the first endless belt, the transmission surface of the second endless belt, and the transmission surface of the lower connecting conveyor belt form a transmission feeding surface with the same direction and an opening upwardly-facing arc-shaped transmission path, and multiple layers of fiber webs are stacked on the feeding surface in sequence while being tilted forward along the front and rear feeding direction, so that the fiber webs maintain the same number of layers entering the connecting channel; The upper feeding roller and the lower feeding 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 feeding roller. The feeding guide unit further comprises an upper guide piece and a lower guide piece, wherein the upper guide piece comprises an upper roller sleeve sleeved in the roller groove of the upper feeding roller, an upper guide module formed on the upper roller sleeve and capable of contacting the upper needle template, and the bottom surface of the upper guide module is flush with the bottom surface of the upper feeding roller; the lower guide piece comprises a lower roller sleeve sleeved in the roller groove of the lower feeding roller, A sleeve, a lower guide module formed on the lower roller sleeve and capable of contacting the lower needle template, wherein the top surface of the lower guide module is flush with the top surface of the lower feeding roller, and as the upper feeding roller and the lower feeding roller rotate toward each other, the upper feeding roller and the lower feeding 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 template and the lower needle template so that a guide channel is formed between the bottom surfaces of the plurality of upper guide modules and the top surfaces of the plurality of lower guide modules; The feeding system further comprises a transfer receiving platform arranged between the receiving channel and the feeding channel formed by the upper feeding roller and the lower feeding roller.

2. The feeding system of the felt pavement layer according to claim 1 is characterized in that: The input end and output end of the first endless belt are adjusted up and down respectively; and / or, the input end and output end of the first endless belt are symmetrically arranged, and the upper and lower layers of the first endless belt are symmetrically arranged; and / or, the first endless belt, the upper connecting conveyor belt and the lower connecting conveyor belt are all endless crawler belts; the second endless belt is an endless crawler belt or an endless belt.

3. The feeding system of the felt pavement according to claim 1 is characterized in that: The receiving output ends of the upper connecting conveyor belt and the lower connecting conveyor belt are aligned vertically; in the orthographic projection of its own width, the receiving input end of the lower connecting conveyor belt is located in front of the receiving input end of the upper connecting conveyor belt; And / or, the receiving input ends of the upper connecting conveyor belt and the lower connecting conveyor belt are respectively rotated and adjusted around the receiving output end to change the size of the receiving channel opening.

4. The feeding system of the felt pavement according to claim 1 is characterized in that: The second annular belt is installed on the frame, and the frame is installed on the base so as to rotate and rise and fall from the front end, and the frame is rotated and raised around the front end from the rear end on the base, wherein a rotating arm is provided at the rear end of the frame, and a connecting arm and a telescopic rod moving along the front and rear directions are provided on the base, wherein the rotating arm and the connecting arm are rotatably connected from the ends, and the top end of the telescopic rod is fixed to the rotating connection point of the rotating arm and the connecting arm, and during the telescopic movement of the telescopic rod, the rotating arm and the connecting arm relatively lift or lower the rear end of the frame.

5. The feeding system of the felt pavement according to claim 1 is 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; the upper roller sleeve includes an upper ring with an opening formed at the top and capable of being sleeved in the roller groove of the upper feeding roller, an upper ear formed at the open end of the upper ring, and an upper connector that fixes the two upper ears together; the lower roller sleeve includes a lower ring with an opening formed at the bottom and capable of being sleeved in the roller groove of the lower feeding roller, a lower ear formed at the open end of the lower ring, and a lower connector that fixes the two lower ears together.

6. The feeding system of the felt pavement layer according to claim 5 is characterized in that: The upper guide module includes an upper extension body with a horizontal bottom surface and extending to one side along the tangent direction of the upper ring, 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 template; and / or, the lower guide module includes a lower extension body with a horizontal top surface and extending to one side along the tangent direction of the lower ring, 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 template.

7. The feeding system of the felt pavement according to claim 6, characterized in that: An upper matching notch is formed at the end of the upper needle template, and the upper mold tip matches the upper matching notch; or, an upper matching notch is formed at the upper extension body and the upper mold tip, and the upper needle template end matches the upper matching notch; a lower matching notch is formed at the end of the lower needle template, and the lower mold tip matches the lower matching notch; or, a lower matching notch is formed at the lower extension body and the lower mold tip, and the lower needle template end matches the lower matching notch.

8. The feeding system of the felt pavement according to claim 1 is characterized in that: The upper feeding roller and the lower feeding roller are symmetrically arranged up and down; the upper guide plate and the lower guide plate are symmetrically arranged up and down; and / or, upper edge grooves and lower edge grooves are respectively arranged on the circumference of the upper feeding roller and the lower feeding roller.

9. The feeding system of the felt pavement according to claim 1, characterized in that: The cross section of the transfer platform is T-shaped.

10. A feeding process for a felt pavement layer, characterized in that: It adopts the feeding system according to any one of claims 1 to 9, and comprises the following steps: S1. Formation and transmission of the web layer Based on the inclined transmission surface of the first endless belt, the transmission surface of the second endless belt, and the transmission surface of the lower connecting transmission belt, the three form a transmission feeding surface with the same direction and the transmission path being an arc-shaped transmission feeding surface with an opening facing upward, multiple layers of fiber webs are stacked on the feeding surface in sequence along the front and rear feeding direction while being tilted forward, so that the fiber webs maintain the same number of layers entering the receiving channel, thereby realizing continuous supply of the laying layer; S2. Guiding and feeding of the laying layer The web layer is transmitted forward between the upper feeding roller and the lower feeding roller, and the upper feeding roller and the lower feeding 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 template and the lower needle template 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 web layer keeps translation along the guide channel and enters between the upper and lower needle templates with a low misalignment rate to complete the feeding of the web layer.

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