Aerogel felt needling feeding mechanism

Abstract

The needling feeding mechanism of the aerogel felt comprises an output conveying belt set and a connecting and guiding conveying belt set, and the connecting and guiding conveying belt set comprises an upper connecting and guiding belt and a lower connecting and guiding belt which move oppositely; the output conveying belt set comprises a first conveying belt and a second conveying belt, the inclined conveying face of the first conveying belt, the conveying face of the second conveying belt and the conveying face of the lower connecting and guiding belt form an arc-shaped conveying and feeding face in the same direction, and the conveying path of the arc-shaped conveying and feeding face is opened upwards. The multiple layers of fiber meshes are sequentially stacked on the feeding face in the front-back feeding direction in a forwards-inclined mode so that the fiber meshes can enter the connecting and guiding channel with the same layer number. Based on the change and lengthening of a transmission path formed by an arc-shaped transmission feeding surface with an upward opening, and the feeding requirements of increasing different thicknesses and different layers of lapping layers, and the transition of a horizontal transmission surface and a downward inclined transmission surface is adopted, so that the adjustment range of an inclined stacking angle is increased, and the feeding efficiency is improved. The feeding practicability of the lapping layer is greatly 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 needle-punching feeding mechanism for aerogel felt. Background Art

[0002] At present, the production line of aerogel felt is usually composed of pretreatment equipment, feeding equipment, needle rolling equipment, heat setting equipment and edge trimming and rolling equipment. Among them, the needle rolling equipment is the core part of the production line, including pre-needling machine, positive needle rolling machine and reverse needle rolling machine, etc. The fibers are interwoven with each other through the needle punching action to form felt.

[0003] However, before the fiber web enters the needling machine, multiple layers of mesh need to be stacked and then gradually flattened and fed into the needling mechanism, and the meshes fed in should still remain in an up-and-down stacking state. Therefore, how to achieve stacked feeding is very critical, because once the number of layers of mesh is disordered, it not only increases the needle breakage rate of needle punching, but also makes the thickness of the produced aerogel felt uneven. Therefore, most manufacturers use the method of inclined stacking to carry out horizontal push feeding. However, based on the requirements for the number of mesh layers and the change in the height of the mesh 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 mesh layer, which brings great inconvenience to the actual feeding. 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 aerogel felt needle-punching feeding mechanism.

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

[0006] A needle-punch feeding mechanism for aerogel felt comprises an output conveyor belt group and a receiving conveyor belt group, wherein the receiving conveyor belt group comprises an upper receiving belt and a lower receiving belt moving in opposite directions, wherein a receiving channel is formed between the upper receiving belt and the lower receiving belt, and the receiving channel gradually becomes smaller along the feeding direction;

[0007] The output conveyor belt group includes a first conveyor belt formed with a horizontal conveyor surface and a downward inclined conveyor surface, and a second conveyor belt located at the inclined end of the first conveyor belt and capable of adjusting the inclination angle, wherein the second conveyor belt connects the first conveyor belt and the lower connecting belt, and the inclined conveyor surface of the first conveyor belt, the conveyor surface of the second conveyor belt, and the conveyor surface of the lower connecting belt form a conveyor feeding surface with the same direction and an open upward arc-shaped conveyor path. Multiple layers of fiber webs are stacked on the feeding surface in sequence while being tilted forward along the front and rear feeding directions, so that the fiber webs maintain the same number of layers entering the connecting channel.

[0008] Preferably, the input end and the output end of the first conveyor belt are respectively adjustable up and down. Based on the height adjustment, further assistance is provided to meet the requirements of laying nets of different heights and layers.

[0009] Furthermore, two pull rods are provided at the two shaft ends, one at the input and the other at the output. A power unit is also provided above the first conveyor belt to drive the pull rods up and down. There are many ways to drive the pull rods up and down. In some embodiments, the power unit is a winch, wherein the pulling end of the winch is fixedly connected to the upper end of the pull rods. This winch is a conventional wire winch.

[0010] According to a specific embodiment and preferred aspect of the present invention, the first conveyor belt, the upper connecting belt, and the lower connecting belt are all endless crawlers; the second conveyor 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 prevents slippage during the transmission process. Of course, a partial endless belt can also be used for transmission to increase transmission efficiency.

[0011] Preferably, the endless track comprises an endless track body and anti-skid strips formed on the endless track body.

[0012] According to another embodiment of the present invention, the upper and lower connecting belts have their outlet ends aligned vertically; in orthographic projection of their width, the lower connecting belt's inlet end is positioned in front of the upper connecting belt's inlet end. The lower connecting belt performs the splicing first, allowing any web, regardless of its thickness, to enter the splicing channel.

[0013] Preferably, the receiving input ends of the upper receiving belt and the lower receiving belt are respectively rotated and adjusted around the receiving output ends to change the size of the receiving channel opening to meet the needs of receiving and extruding webs of different thicknesses.

[0014] Furthermore, the second conveyor belt itself can be raised and lowered and can be rotated and adjusted around the shaft end close to the first conveyor belt. The first conveyor belt and the lower guide belt are connected based on the angle and height adjustment of the second conveyor belt.

[0015] In addition, a second conveyor belt is mounted on a carrier, which is mounted on a base for rotation and elevation from its front end, and is raised and lowered from its rear end around its front end. A rotating arm is provided at the rear end of the carrier, and a connecting arm and a telescopic rod that moves in a front-to-back direction are provided on the base. The rotating arm and the connecting arm are rotatably connected from their ends, and the top of the telescopic rod is fixed to the rotational connection point between the rotating arm and the connecting arm. During the telescopic movement of the telescopic rod, the rotating arm and the connecting arm relatively raise or lower the rear end of the carrier. First, because the paving layer appears thick but is very light, the rotation and elevation employed do not require excessive pressure. Second, the resulting angles and heights are small adjustments, providing strong controllability. Finally, the position of the telescopic rod allows the carrier and base to be relatively limited, and the combination of elevation and rotation employed at the front end is also conveniently implemented (the bottom portion is the telescopic rod, and the top portion is a rotating seat rotatably mounted on the top of the telescopic rod, wherein the rotating seat is fixed to the front end of the carrier).

[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 existing laying net feeding, most manufacturers use the inclined stacking laying net method for horizontal push feeding. However, based on the requirements of the number of laying net layers and the change of the laying net height, if the transmission path is changed, it is difficult to meet the use needs by simply changing the inclination angle of the net layer, which brings great inconvenience and shortcomings to the actual feeding. The needle-punched feeding mechanism of the aerogel felt of the utility model is designed as a whole, which cleverly solves the shortcomings and defects of the existing technology. After adopting the feeding mechanism, based on the inclined transmission surface of the first conveyor belt, the transmission surface of the second conveyor belt, and the transmission of the lower guide belt, the feeding mechanism is realized. The three surfaces form a transmission feeding surface with the same direction and an opening facing upward as the transmission path. The multiple layers of fiber mesh are stacked on the feeding surface in sequence while being tilted forward along the front and rear feeding directions, so that the fiber mesh maintains the same number of layers entering the receiving channel. Therefore, the utility model is based on the change and lengthening of the transmission path formed by the opening facing upward as well as the unchanged spacing, thereby increasing the feeding needs of laying layers with different thicknesses and different numbers of layers. At the same time, 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 feeding the laying layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the needle-punch feeding mechanism of the aerogel felt of this embodiment;

[0019] Figure 2 for Figure 1 A schematic diagram of the main view of the first conveyor belt;

[0020] Figure 3 for Figure 1 A schematic diagram of the main view of the middle receiving conveyor belt group;

[0021] Among them: 1. output conveyor belt group; 11. first conveyor belt; 11a. horizontal conveyor surface; 11b. inclined conveyor surface; 11c. input end; 11d. output end; 12. second conveyor belt; g. pull rod; q. power device; 12b, 22b, conveyor surface; 2. receiving conveyor belt group; 21. upper receiving belt; 22. lower receiving belt; t. receiving channel; 3. carrier; 4. base; 5. rotating arm; 6. connecting arm; 7, s, telescopic rod; z, rotating seat; w, transmission feeding surface; p, fiber mesh; m1, ring belt body; m2, anti-skid strip; J, frame; w1, arc groove; w2, sliding seat. DETAILED DESCRIPTION

[0022] 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.

[0023] 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.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] like Figures 1 to 3 As shown, the needle-punch feeding mechanism of the aerogel felt of this embodiment includes an output conveyor belt group 1 and a receiving conveyor belt group 2, the output conveyor belt group 1 includes a first conveyor belt 11 and a second conveyor belt 12; the receiving conveyor belt group 2 includes an upper receiving belt 21 and a lower receiving belt 22 moving in opposite directions, wherein a receiving channel t is formed between the upper receiving belt 20 and the lower receiving belt 21, and the receiving channel t gradually becomes smaller along the feeding direction.

[0028] Specifically, the first conveyor belt 11 has a horizontal conveyor surface 11 a and a downward inclined conveyor surface 11 b , and the second conveyor belt 12 connects and connects the inclined conveyor surface 11 b with the lower connecting belt 22 .

[0029] In some specific embodiments, the input end 11c and the output end 11d of the first conveyor 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 axial ends of the input end 11c and the output end 11d, and a power device q is also provided above the first conveyor 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.

[0030] The second conveyor belt 12 is located at the inclined end of the first conveyor belt 11 and can adjust the inclination angle and its own height. Specifically, the second conveyor belt 12 can be raised and lowered and can be rotated and adjusted around the axial end close to the first conveyor belt 11, that is, the first conveyor belt and the lower connecting belt are connected based on the angle and height adjustment of the second conveyor belt. In some specific embodiments, the second conveyor belt 12 is installed on the carrier 3, and the carrier 3 is installed on the base 4 so as to rotate and rise and fall from the front end. The carrier 3 is rotated and raised on the base 4 around the front end from the rear end, wherein a rotating arm 5 is provided at the rear end of the carrier 3, and a connecting arm 6 and a telescopic rod 7 that moves in the front-to-back direction are provided on the base 4, wherein the rotating arm 5 and the connecting arm 6 are rotatably connected from the end, and the top of the telescopic rod 7 is fixed to the rotation connection point of the rotating arm 5 and the connecting arm 6, and when the telescopic rod 7 is telescopic, the rotating arm 5 and the connecting arm 6 relatively lift or lower the rear end of the carrier 3. First, since the mesh layer looks thick but is very light, the rotation and lifting used do not need to bear excessive pressure; second, the angles and heights formed are adjusted in small amounts and are highly controllable; finally, the position of the telescopic rod can be used to relatively limit the carrier and the base, 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 carrier 3 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 carrier 3).

[0031] The inclined transmission surface 11b of the first conveyor belt 11, the transmission surface 12b of the second conveyor belt 12, and the transmission surface 22b of the lower connecting belt 22 form a transmission feeding surface w with the same direction and an open upward arc transmission path. The multiple layers of fiber mesh p (laying layer) are stacked on the feeding surface in sequence while being tilted forward along the front and rear feeding direction, so that the fiber mesh maintains the same number of layers entering the connecting channel t. The first conveyor belt 11, the upper connecting belt 21, and the lower connecting belt 22 are all circular belts; the second conveyor belt 12 is an circular belt or an endless belt. Transmission based on the circular belt not only provides relative resistance and is conducive to the stacking of the laying layer, but also avoids slipping during the transmission process. Of course, partial circular belts can also be used for transmission to increase transmission efficiency. The circular belt includes an annular belt body m1 and an anti-slip strip m2 formed on the annular belt body m1.

[0032] The upper and lower connecting belts 21 and 22 have their connecting output ends aligned vertically; in the orthographic projection of their own width, the connecting input end of the lower connecting belt 22 is located in front of the connecting input end of the upper connecting belt 21. The lower connecting belt is connected first, so that no matter how thick the paving net is, it can enter the connecting channel.

[0033] Furthermore, the receiving input ends of the upper and lower connecting belts 21 and 22 are respectively rotated and adjusted around their respective output ends to vary the opening size of the receiving channel t, thereby satisfying the requirements for the extrusion of webs of varying thicknesses. Specifically, an arcuate groove w1 is provided on the corresponding frame J, and sliding seats w2 are provided at the receiving input ends of the upper and lower connecting belts 21 and 22, respectively. Based on the movement of the sliding seats w2 within the arcuate groove w1, the two connecting belts are then locked relative to each other using external connectors.

[0034] In summary, after adopting the feeding mechanism, based on the inclined transmission surface of the first conveyor belt, the transmission surface of the second conveyor belt, and the transmission surface of the lower receiving 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, and the multiple layers of fiber mesh are stacked on the feeding surface in sequence while being tilted forward along the front and rear feeding directions, so that the fiber mesh maintains the same number of layers entering the receiving channel. Therefore, the first aspect of the present invention is based on the change and lengthening of the transmission path formed by the arc-shaped transmission feeding surface with an opening facing upward with the spacing unchanged, thereby increasing the feeding needs of the laying layers of different thicknesses and different numbers of layers, and at the same time, the transition between the horizontal transmission surface and the downward inclined transmission surface is further changed. The tilted stacking angle increases the practicality of feeding the laying layer; the second aspect is based on the height adjustment to provide further assistance to meet the needs of laying nets at different heights and layers; the third aspect is based on the lifting and lowering of the pull rod to adjust the height output, further increasing the adjustment range of the tilt angle. At the same time, the power device is a winch, and the price is raised based on the traction of the steel wire, which is easy to operate and low in cost; the fourth aspect is based on the transmission of the ring crawler, which not only provides relative resistance and is conducive to the stacking of the laying layer, but also avoids slipping during the transmission process. Of course, some ring belts can also be used for transmission to increase transmission efficiency; the fifth aspect is to connect with the lower guide belt first, so that no matter how thick the net is, The laying nets can enter the receiving channel, and the receiving input ends of the upper and lower receiving belts are respectively rotated and adjusted around the receiving output ends to change the size of the receiving channel opening to meet the needs of the different thickness laying nets receiving and extruding; the sixth aspect is based on the angle and height adjustment of the second conveyor belt to connect the first conveyor belt and the lower receiving belt. Specifically, the second conveyor belt is installed on the carrier, and the carrier is installed on the base for rotating and lifting up and down from the front end, and the carrier is rotated and lifted on the base around the front end from the rear end, wherein a rotating arm is provided at the rear end of the carrier, 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 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 carrier. That is to say, firstly, since the laying mesh layer looks thick but is very light, the rotation and lifting adopted do not need to bear excessive pressure; secondly, the angles and heights formed are adjusted in small amplitudes, and the controllability is strong; finally, based on the position of the telescopic rod, the carrier and the base can be relatively limited, and the combination of lifting and rotation 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, where the rotating seat is fixed to the front end of the carrier).

[0035] 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 needle-punch feeding mechanism for aerogel felt, comprising an output conveyor belt group and a receiving conveyor belt group, characterized in that: The connecting conveyor belt group includes an upper connecting belt and a lower connecting belt that move toward each other, wherein a connecting channel is formed between the upper connecting belt and the lower connecting belt, and the connecting channel gradually becomes smaller along the feeding direction; The output conveyor belt group includes a first conveyor belt formed with a horizontal conveying surface and a downward inclined conveying surface, and a second conveyor belt located at the inclined end of the first conveyor belt and capable of adjusting the inclination angle, wherein the second conveyor belt connects the first conveyor belt and the lower connecting belt, and the inclined conveying surface of the first conveyor belt, the conveying surface of the second conveyor belt, and the conveying surface of the lower connecting belt form a conveying feeding surface with the same direction and an open upward arc-shaped conveying path, and 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 connecting channel.

2. The aerogel felt needle-punching feeding mechanism according to claim 1, characterized in that: The input end and the output end of the first transmission belt are respectively adjusted up and down.

3. The aerogel felt needle-punching feeding mechanism according to claim 2, characterized in that: Two pull rods are respectively provided at the two shaft ends of the input end and the output end, and a power device for driving the pull rods to move up and down is also provided above the first transmission belt.

4. The aerogel felt needle-punching feeding mechanism according to claim 3, characterized in that: The power device is a winch, wherein the traction end of the winch is fixedly connected to the upper end of the pull rod.

5. The aerogel felt needle feeding mechanism according to claim 1, characterized in that: The first conveyor belt, the upper connecting belt and the lower connecting belt are all endless crawler belts; the second conveyor belt is an endless crawler belt or an endless belt.

6. The aerogel felt needle-punching feeding mechanism according to claim 5, characterized in that: The endless crawler belt comprises an endless belt body and anti-skid strips formed on the endless belt body.

7. The aerogel felt needle-punching feeding mechanism according to claim 1, characterized in that: The connecting output ends of the upper connecting belt and the lower connecting belt are aligned vertically; in the orthographic projection of its own width, the connecting input end of the lower connecting belt is located in front of the connecting input end of the upper connecting belt.

8. The aerogel felt needle-punching feeding mechanism according to claim 7, characterized in that: The receiving input ends of the upper receiving belt and the lower receiving belt are respectively rotated and adjusted around the receiving output end to change the size of the receiving channel opening.

9. The aerogel felt needle-punching feeding mechanism according to claim 1, characterized in that: The second conveyor belt itself can be raised and lowered and can be rotated and adjusted around the shaft end close to the first conveyor belt.

10. The aerogel felt needle-punching feeding mechanism according to claim 9, characterized in that: The second conveyor belt is installed on the carrier, and the carrier is installed on the base so as to rotate and rise and fall from the front end, and the carrier 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 carrier, 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 carrier.

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