Automatic non-woven fabric replacing device

Abstract

The utility model discloses an automatic non-woven fabric replacing device. The automatic non-woven fabric replacing device comprises a rack, an unwinding mechanism and a moving mechanism. The rack is provided with a feeding station and a feeding opening. The unwinding mechanism is arranged on the rack; the unwinding mechanism comprises a first unwinding piece and a second unwinding piece, the first unwinding piece is provided with a first cloth stroking opening, and the first unwinding piece is used for guiding non-woven fabric to be guided out through the first cloth stroking opening; the second unwinding piece is provided with a second cloth stroking opening, and the second unwinding piece is used for guiding the non-woven fabric to be guided out through the second cloth stroking opening; the moving mechanism is used for driving the first unwinding piece and the second unwinding piece to move close to or away from the feeding station, so that the first cloth stroking opening or the second cloth stroking opening is matched with the feeding opening for feeding. The moving mechanism drives the two unwinding pieces to alternately move to the feeding station for unwinding, non-stop automatic replacement of the non-woven fabric is achieved, the stop waiting time during traditional manual replacement is avoided, and meanwhile the production efficiency of the whole production process is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of non-woven fabric production, and particularly relates to an automatic non-woven fabric replacing device. BACKGROUND

[0002] Non-woven fabric, also known as non-woven cloth, is a kind of non-woven cloth. It is not formed by traditional weaving or knitting methods. Instead, it is directly formed by using polymer chips, short fibers or filaments to form a fiber web through airflow or mechanical webbing, and then through water jet, needle punching, hot rolling and other reinforcement processes to make the fibers interlock or bond together, thereby forming a sheet material.

[0003] In order to facilitate storage and transportation, large pieces of non-woven fabric are usually wound into cloth rolls. In the process of non-woven fabric production, the non-woven fabric roll needs to be placed on the unwinding frame for unwinding, and then the unwound non-woven fabric needs to be processed and manufactured. When a roll of non-woven fabric is used up and needs to be replaced with a new roll, the machine needs to be stopped first, and then manual or mechanical hand operation is used to complete the disassembly of the old roll and the installation of the new roll. For large non-woven fabric processing equipment, the spool used is usually long and heavy, and the process of disassembling the old one and assembling the new one is complicated, which may cause the equipment to be stopped for a long time during the replacement of a roll, thereby reducing the production efficiency. CONTENT OF THE INVENTION

[0004] In order to overcome at least one of the defects of the prior art described above, the present application provides an automatic non-woven fabric replacing device, which drives the first unwinding part and the second unwinding part to move alternately to the feeding station for unwinding by a moving mechanism, thereby realizing automatic replacement of non-woven fabric without stopping the machine and avoiding the problem of low production efficiency caused by stopping the machine and waiting for traditional manual replacement.

[0005] The technical solution adopted by the present application to solve the problems is as follows:

[0006] An automatic non-woven fabric replacing device comprises,

[0007] A rack is provided with a feeding station and a feeding port;

[0008] An unwinding mechanism is arranged on the rack; the unwinding mechanism comprises a first unwinding part and a second unwinding part, the first unwinding part is provided with a first cloth guiding port, and the first unwinding part is used to guide the non-woven fabric to be guided out through the first cloth guiding port; the second unwinding part is provided with a second cloth guiding port, and the second unwinding part is used to guide the non-woven fabric to be guided out through the second cloth guiding port;

[0009] A moving mechanism is used to drive the first unwinding part and the second unwinding part to move close to or away from the feeding station, so that the first cloth guiding port or the second cloth guiding port cooperates with the feeding port for feeding.

[0010] As a preferred technical solution of the present application, the detection assembly comprises a first sensor and a second sensor, the first sensor is used for detecting the position of the first unwinding piece and generating a first electric signal; the second sensor is used for detecting the position of the second unwinding piece and generating a second electric signal, and the moving mechanism is started or stopped according to the first electric signal and / or the second electric signal.

[0011] As a preferred technical solution of the present application, the unwinding mechanism comprises a first connecting frame and a second connecting frame, the first unwinding piece is connected to the first connecting frame, and the second unwinding piece is connected to the second connecting frame; the moving mechanism comprises a first driving piece and a second driving piece, the output end of the first driving piece is connected to the first connecting frame, and the output end of the second driving piece is connected to the second connecting frame.

[0012] As a preferred technical solution of the present application, the first connecting frame and the second connecting frame are arranged in a vertical direction; the unwinding assembly comprises a third driving piece, which is used for driving the second unwinding piece to ascend or descend after the second unwinding piece reaches the feeding station, so as to make the second unwinding piece close to or away from the feeding port.

[0013] As a preferred technical solution of the present application, the unwinding assembly comprises a fourth driving piece and a fifth driving piece, the fourth driving piece is arranged on one side of the first unwinding port and is used for pressing or loosening the first unwinding port; the fifth driving piece is arranged on one side of the second unwinding port and is used for pressing or loosening the second unwinding port.

[0014] As a preferred technical solution of the present application, the first unwinding port and the second unwinding port each comprise two unwinding plates arranged oppositely, and an unwinding interval is formed between the two unwinding plates, which is used for smoothing the non-woven fabric when guiding the non-woven fabric to output.

[0015] As a preferred technical solution of the present application, the rack is provided with a clamping assembly, the clamping assembly comprises two clamping plates arranged oppositely and a sixth driving piece, the feeding port is formed between the two clamping plates, and the sixth driving piece is used for driving the two clamping plates to close to or away from each other, so as to clamp or loosen the non-woven fabric conveyed by the first unwinding port or the second unwinding port.

[0016] As a preferred technical scheme of the present application, the rack is provided with a seventh driving member and a guide plate, one end of the guide plate is connected to the output end of the seventh driving member, the other end of the guide plate is connected with the sixth driving member, the seventh driving member is used to drive the guide plate to move, and the guide plate is used to drive the sixth driving member and the two clamping plates to move during the movement.

[0017] As a preferred technical scheme of the present application, the rack is provided with a guide rail, the guide rail extends along the horizontal direction, and the guide plate is slidingly connected to the guide rail.

[0018] As a preferred technical scheme of the present application, the first unwinding member and the second unwinding member each include a fixing frame and a rotating roller, the fixing frame is connected with the first connecting frame or the second connecting frame, the rotating roller is rotatably connected to the fixing frame, and the rotating roller is used to guide the unwinding of the non-woven fabric during the rotation.

[0019] In summary, the automatic non-woven fabric replacing device provided by the present application has the following technical effects:

[0020] The present application drives the first unwinding member and the second unwinding member to move alternately to the feeding station for unwinding by the moving mechanism, realizes automatic replacement of non-woven fabric without stopping, avoids the problem of low production efficiency caused by stopping and waiting during traditional manual replacement, reduces energy loss and equipment wear caused by stopping and restarting the equipment, and reduces equipment maintenance cost. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 FIG. 1 is a structural schematic view of an automatic non-woven fabric replacing device according to an embodiment of the present application;

[0022] Figure 2 FIG. 2 is a structural schematic view of the automatic non-woven fabric replacing device according to the embodiment of the present application; Figure 1 FIG. 3 is an enlarged view of part A in FIG. 2;

[0023] Figure 3 FIG. 4 is an enlarged view of part B in FIG. 2; Figure 1 FIG. 5 is a structural schematic view of the automatic non-woven fabric replacing device according to the embodiment of the present application;

[0024] Figure 4 FIG. 6 is a structural schematic view of the automatic non-woven fabric replacing device according to the embodiment of the present application; Figure 1 FIG. 7 is a structural schematic view of the automatic non-woven fabric replacing device according to the embodiment of the present application from another perspective;

[0025] Figure 5 FIG. 8 is an assembly schematic view of the moving mechanism and the unwinding mechanism according to the embodiment of the present application;

[0026] Figure 6 FIG. 9 is a structural schematic view of the automatic non-woven fabric replacing device according to the embodiment of the present application from another perspective; Figure 5

[0027] In the drawings, the reference signs have the following meanings: ​

[0028] 10, rack; 20, first unwinding member; 21, first cloth guiding opening; 22, third sensor; 23, first connecting frame; 24, fourth driving member; 30, second unwinding member; 31, second cloth guiding opening; 32, fourth sensor; 33, second connecting frame; 34, third driving member; 35, fifth driving member; 40, moving mechanism; 41, first driving member; 42, second driving member; 43, first sensor; 44, second sensor; 50, clamping plate; 51, sixth driving member; 52, seventh driving member; 53, guide plate; 54, guide rail. DETAILED DESCRIPTION

[0029] In order to better understand and implement, the technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application.

[0030] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application.

[0032] Referring to Figure 1 and Figure 4 , the present application discloses an automatic non-woven fabric changing device, which comprises a rack 10, an unwinding mechanism and a moving mechanism 40. Specifically, the unwinding mechanism is arranged on the rack 10, and the rack 10 is provided with a feeding station and a feeding opening. The unwinding mechanism comprises a first unwinding member 20 and a second unwinding member 30, referring to Figure 2 , the first unwinding member 20 is provided with a first cloth guiding opening 21, and the first unwinding member 20 is used to guide the non-woven fabric to be guided out through the first cloth guiding opening 21; referring to Figure 3 , the second unwinding member 30 is provided with a second cloth guiding opening 31, and the second unwinding member 30 is used to guide the non-woven fabric to be guided out through the second cloth guiding opening 31. Referring to Figure 5 and Figure 6 , the moving mechanism 40 is used to drive the first unwinding member 20 and the second unwinding member 30 to move close to or away from the feeding station, so that the first cloth guiding opening 21 or the second cloth guiding opening 31 cooperates with the feeding opening for feeding.

[0033] On the basis of the structure, when the automatic non-woven fabric changing device of the application is used, two non-woven fabric rolls can be respectively installed on the first unwinding part 20 and the second unwinding part 30, and the starting ends of the non-woven fabrics are ensured to pass through the first fabric guiding port 21 and the second fabric guiding port 31 respectively, and the non-woven fabrics are in a state of tension but not excessive tightness, so as to be smoothly guided out subsequently.

[0034] Then the device is started, the first unwinding part 20 is moved to the feeding station by the moving mechanism 40, and then the first unwinding part 20 starts to work to stably convey the non-woven fabric to the subsequent production and processing link through the first fabric guiding port 21 and the feeding port. When the non-woven fabric on the first unwinding part 20 is used up, the moving mechanism 40 drives the first unwinding part 20 away from the feeding station, and drives the second unwinding part 30 close to the feeding station, and in this process, the first fabric guiding port 21 gradually moves away from the feeding port, and the second fabric guiding port 31 gradually moves close to the feeding port. Subsequently, the second fabric guiding port 31 cooperates with the feeding port to output the non-woven fabric on the second unwinding part 30.

[0035] When the second unwinding part 30 is working, a new non-woven fabric roll can be installed on the first unwinding part 20 to prepare for the next roll changing. When the non-woven fabric on the second unwinding part 30 is about to be used up, the above-mentioned changing steps are repeated, and the cycle is repeated to realize the automatic and continuous changing of the non-woven fabric.

[0036] Among them, the first unwinding part 20 and the second unwinding part 30 are respectively provided with a third sensor 22 and a fourth sensor 32, and the two sensors can be photoelectric sensors or ultrasonic sensors, etc., which can respectively detect the use of the non-woven fabric on the two unwinding parts in real time. When it is detected that the non-woven fabric on the unwinding part at the feeding station is used up or needs to be changed, the corresponding sensor will send a prompt signal, and the moving mechanism 40 can drive the first unwinding part 20 and the second unwinding part 30 to move close to or away from the feeding station according to the prompt signal. It can be understood that the prompt signal can also be received by manual operation, and then the moving mechanism 40 is controlled to drive the first unwinding part 20 and the second unwinding part 30 to the corresponding positions.

[0037] Therefore, the application realizes automatic changing of non-woven fabric without stopping, and avoids the downtime waiting time in traditional manual changing. In traditional production, each time the roll is changed, the production may be interrupted for several minutes or even longer, and the device of the application can complete the switching without stopping, greatly increasing the effective operation time of the equipment and improving the production efficiency of the whole production process.

[0038] In addition, the energy loss and equipment wear caused by shutdown and restart of the equipment are reduced. Frequent shutdown and start-up will cause additional stress impact on the equipment components such as motor, transmission device, etc., shorten the service life of the equipment, and the automatic replacement non-woven fabric device reduces the occurrence of such situation and reduces the equipment maintenance cost.

[0039] As a preferred technical solution of the present application, the automatic replacement non-woven fabric device comprises a detection assembly, and the detection assembly comprises a first sensor 43 and a second sensor 44, referring to Figure 5 , the first sensor 43 is used for detecting the position of the first unwinding part 20 and generating a first electric signal, and the second sensor 44 is used for detecting the position of the second unwinding part 30 and generating a second electric signal. Wherein, the moving mechanism 40 starts and stops according to the first electric signal and / or the second electric signal.

[0040] On the basis of this structure, when the automatic replacement non-woven fabric device starts, the detection assembly starts to work. The first sensor 43 first detects the initial position of the first unwinding part 20, determines its position relative to the feeding station, and generates a first electric signal. At the same time, the second sensor 44 also detects the initial position of the second unwinding part 30 and generates a second electric signal.

[0041] Then, the control system of the moving mechanism 40 drives the first unwinding part 20 and the second unwinding part 30 separately according to the first electric signal and / or the second electric signal, to ensure that the first unwinding part 20 is in the feeding station and the first unwinding part 20 is well matched with the feeding port, and the second unwinding part 30 is in the waiting position.

[0042] Among them, the first sensor 43 and the second sensor 44 can be photoelectric position sensor, ultrasonic position sensor or inductive position sensor in the prior art.

[0043] Therefore, the setting of the first sensor 43 and the second sensor 44 enables the moving mechanism 40 to grasp the position information of the first unwinding part 20 and the second unwinding part 30 in real time, so as to accurately position and adjust the position, and further ensure that the matching accuracy of the unwinding part with the feeding station and the feeding port is within a small error range during the replacement process, avoiding the quality problems such as wrinkles, uneven tension or deviation of non-woven fabric caused by position deviation of the unwinding part, and improving the quality and consistency of the product.

[0044] In addition, the first electric signal and the second electric signal can also be displayed on the monitoring equipment or the terminal interface in a visual form (such as numerical display, waveform diagram, indicator light state, etc.), which presents the electric signal generated by the first sensor 43 and the second sensor 44. In this way, the first electric signal and the second electric signal can be received and judged by manual, and the moving mechanism 40 is controlled to move the unwinding part.

[0045] As a preferred technical solution of the present application, the unwinding mechanism comprises a first connecting frame 23 and a second connecting frame 33, wherein the first unwinding part 20 is connected to the first connecting frame 23, and the second unwinding part 30 is connected to the second connecting frame 33. In addition, the moving mechanism 40 comprises a first driving part 41 and a second driving part 42, and the output end of the first driving part 41 is connected to the first connecting frame 23, and the output end of the second driving part 42 is connected to the second connecting frame 33.

[0046] On the basis of this structure, when the device is installed, the first unwinding part 20 is firmly connected to the first connecting frame 23, which ensures that it can stably carry the non-woven fabric roll and realize the unwinding function. Similarly, the second unwinding part 30 is installed on the second connecting frame 33. After the installation of the unwinding part is completed, the output end of the first driving part 41 is reliably connected to the first connecting frame 23, and the second driving part 42 is connected to the second connecting frame 33.

[0047] When the non-woven fabric on the first unwinding part 20 is about to run out, the second driving part 42 starts to drive the second connecting frame 33 to carry the second unwinding part 30 to move towards the direction close to the feeding station. During the movement, the second driving part 42 adjusts the movement speed and position accuracy in real time according to the second electric signal fed back by the second sensor 44, so that the second unwinding part 30 gradually approaches the feeding station.

[0048] At the same time, the first driving part 41 drives the first connecting frame 23 to drive the first unwinding part 20 to gradually move away from the feeding station. The first driving part 41 also adjusts the movement speed and position of the first connecting frame 23 in real time according to the first electric signal, to ensure that the first unwinding part 20 does not interfere with the ongoing production process during the process of moving away from the feeding station, such as avoiding phenomena such as pulling, jamming, etc. of the non-woven fabric.

[0049] Subsequently, the second unwinding part 30 reaches the feeding station and takes over the first unwinding part 20 to start supplying non-woven fabric, and the first driving part 41 moves the first connecting frame 23 to a replenishment position away from the feeding station, waiting for the next roll changing operation. The operator can install a new non-woven fabric roll on the first unwinding part 20 at this time.

[0050] Among them, the first driving part 41 and the second driving part 42 can be in the form of driving such as electric push rod, air cylinder, servo motor and ball screw combination. Specifically, the electric push rod is mainly composed of motor, push rod, screw and other components. The rotary motion of the motor is converted into the linear motion of the push rod through the screw. The air cylinder is composed of cylinder, piston, piston rod and other components; when compressed air enters one end of the air cylinder, it drives the piston to move, and in turn drives the piston rod to extend and retract.

[0051] When the first driving member 41 is an electric push rod, the push rod is connected with the first connecting frame 23, when it is needed to move the first unwinding member 20, the electric motor rotates forward or reverses, so that the push rod is elongated or shortened, thereby pushing the first connecting frame 23 to move, and driving the first unwinding member 20 to reach the designated position. When the second driving member 42 is a pneumatic cylinder, and compressed air enters one end of the pneumatic cylinder connected with the second connecting frame 33, the piston rod extends or retracts, thereby driving the second connecting frame 33 and the second unwinding member 30 to move.

[0052] Thus, the first driving member 41 and the second driving member 42 respectively drive the first connecting frame 23 and the second connecting frame 33 independently, which can realize accurate control of the first unwinding member 20 and the second unwinding member 30, and accurately move the unwinding member to the predetermined position.

[0053] As a preferred technical solution of the present application, the first connecting frame 23 and the second connecting frame 33 are arranged in vertical direction. In addition, the unwinding assembly comprises a third driving member 34, and the third driving member 34 is used to drive the second unwinding port 31 to ascend after the second unwinding member 30 reaches the feeding station, so as to make the second unwinding port 31 close to or away from the feeding port.

[0054] On the basis of this structure, before the device starts, the first unwinding member 20 is installed on the first connecting frame 23, and the first unwinding port 21 is at an initial height position matched with the feeding port, so that after the device starts, the unwinding and conveying of the non-woven fabric can be smoothly carried out. At this time, the third driving member 34 is in standby state, and the second unwinding port 31 is located at a lower position, away from the feeding port, and does not interfere with the unwinding work of the first unwinding member 20.

[0055] When the non-woven fabric on the first unwinding member 20 is about to be used up, the first driving member 41 and the second driving member 42 start to work cooperatively, and the second driving member 42 drives the second connecting frame 33 to carry the second unwinding member 30 to move to the feeding station. When the second unwinding member 30 reaches the feeding station, the third driving member 34 starts to drive the second unwinding port 31 to slowly ascend, so that the second unwinding port 31 can accurately ascend to an appropriate height, so that it is near the optimal matching position with the feeding port.

[0056] Thus, arranging the first connecting frame 23 and the second connecting frame 33 in vertical direction can effectively save the floor area of the equipment in horizontal direction compared with the horizontally arranged mode. The ascending and descending control of the third driving member 34 on the second unwinding port 31 makes the second unwinding port 31 be able to match the height with the feeding port during the roll changing process, and then cooperate with the feeding.

[0057] As a preferred technical solution of the present application, the unwinding assembly comprises a fourth driving member 24 and a fifth driving member 35, wherein the fourth driving member 24 is arranged on one side of the first cloth guide 21 and is used to press or loosen the first cloth guide 21, and the fifth driving member 35 is arranged on one side of the second cloth guide 31 and is used to press or loosen the second cloth guide 31.

[0058] On the basis of the structure, the cloth guide is usually a component with a specific shape, which can be a metal or plastic opening with a certain curvature, and the edge thereof is relatively smooth to avoid scratching the non-woven fabric. The non-woven fabric closely adheres to the inner surface of the cloth guide during unwinding, so that when the non-woven fabric is released from the unwinding member and passes through the cloth guide, due to the pressure applied by the cloth guide to the non-woven fabric, a friction force is generated between the non-woven fabric and the cloth guide.

[0059] Before the device starts to operate, the fourth driving member 24 is in a state of loosening the first cloth guide 21, so as to smoothly pass the starting end of the non-woven fabric on the first unwinding member 20 through the first cloth guide 21 and perform preliminary tension adjustment. Specifically, during assembly, the first unwinding member 20 can be first installed on the corresponding first connecting frame 23, and it is ensured that the non-woven fabric roll is firmly installed and the axis is aligned with the center of rotation of the first unwinding member 20. Then, the head of the non-woven fabric is passed through the first cloth guide 21.

[0060] After the preparation work is completed, the device is started, and the first unwinding member 20 starts to rotate to unwind the non-woven fabric. In the initial stage of unwinding, the fourth driving member 24 gradually performs appropriate pressing operation on the first cloth guide 21, and effectively pulls the non-woven fabric to stably unwind through a certain pressing force. At this time, the first cloth guide 21 is in close contact with the non-woven fabric under the action of the fourth driving member 24, so that the non-woven fabric can be smoothly guided out according to the predetermined direction and tension, and then enter the subsequent production and processing link through the feeding port. When it is necessary to change the roll, the fourth driving member 24 starts to gradually loosen the pressing force on the first cloth guide 21.

[0061] Similarly, after the second unwinding member 30 reaches the feeding station after changing the roll, the fifth driving member 35 also gradually performs appropriate pressing operation on the second cloth guide 31, and effectively pulls the non-woven fabric to stably unwind through a certain pressing force.

[0062] Therefore, during unwinding, by adjusting the pressing force of the driving member on the cloth guide, the friction force between the non-woven fabric and the cloth guide can be accurately controlled, so as to realize the adjustment of the tension of the non-woven fabric. Appropriate cloth guide friction force can ensure that the non-woven fabric is smoothly and uniformly unwound.

[0063] As a preferred technical solution of the present application, refer to Figure 2 and Figure 3The first cloth guiding opening 21 and the second cloth guiding opening 31 each include two cloth guiding plates oppositely arranged and a cloth guiding gap formed between the two cloth guiding plates. The cloth guiding gap is used to guide the non-woven fabric to be flat.

[0064] Based on the structure, when the equipment is initially installed or a new roll of non-woven fabric is replaced each time, the starting end of the non-woven fabric can be first inserted into the cloth guiding gap between the two cloth guiding plates of the first cloth guiding opening 21 or the second cloth guiding opening 31. Specifically, the non-woven fabric can be inserted into the cloth guiding gap between the two cloth guiding plates, and then slowly pulled to pass through the entire cloth guiding gap. In this process, since the two cloth guiding plates are oppositely arranged and form the cloth guiding gap, the non-woven fabric is constrained and guided by the cloth guiding plates when passing through.

[0065] When the first unwinding member 20 starts to unwind, the non-woven fabric is guided out of the cloth guiding gap of the first cloth guiding opening 21. As the non-woven fabric is continuously output, the two cloth guiding plates continuously play a role in flattening the non-woven fabric. Since the non-woven fabric may have some wrinkles, curls or local unevenness during the winding process, the oppositely arranged two cloth guiding plates will exert a certain pressure on both sides of the non-woven fabric to gradually smooth out these unevennesses when passing through the cloth guiding gap.

[0066] Therefore, when the non-woven fabric passes through the cloth guiding gap, the friction between the cloth guiding plates and the non-woven fabric makes the tension of the non-woven fabric in the transverse direction more uniform. This can avoid problems such as stretching deformation and deviation of the non-woven fabric caused by uneven tension, and ensure the stability of the non-woven fabric during the entire unwinding and production process.

[0067] In addition, when the third driving member 34 drives the second cloth guiding opening 31 to ascend and descend, it actually drives the two cloth guiding plates to ascend and descend relative to the second connecting frame 33, so as to drive the second cloth guiding opening 31 to move close to or away from the feeding opening. Similarly, when the fourth driving member 24 and the fifth driving member 35 press or loosen the first cloth guiding opening 21 or the second cloth guiding opening 31, one of the cloth guiding plates is also driven to move close to or away from the other cloth guiding plate.

[0068] As a preferred technical solution of the present application, the rack 10 is provided with a clamping assembly. Specifically, the clamping assembly includes two oppositely arranged clamping plates 50 and a sixth driving member 51. Referring to Figure 2 The two clamping plates 50 are spaced apart to form the feeding opening, and the sixth driving member 51 is used to drive the two clamping plates 50 to move close to or away from each other, so as to clamp or loosen the non-woven fabric conveyed by the first cloth guiding opening 21 or the second cloth guiding opening 31.

[0069] On the basis of the structure, before the equipment starts, the sixth driving member 51 is in a state of moving the two clamping plates 50 away from each other, at this time, the feeding port is in the initial position of being opened with a large gap, so as to facilitate the non-woven fabric conveyed by the first or second lapping port to be smoothly introduced into the area of the feeding port. In addition, the head of the non-woven fabric on the first or second unwinding member 20 can be passed through the corresponding lapping port and pulled to a position close to the feeding port.

[0070] When the first unwinding member 20 starts to unwind, the non-woven fabric is guided out of the first lapping port 21 and moves in the direction close to the feeding port. At this time, the sixth driving member 51 starts to drive the two clamping plates 50 to move close to each other and clamp the non-woven fabric, so that the position and tension of the non-woven fabric are kept stable in the subsequent conveying process.

[0071] When it is necessary to change the roll, the sixth driving member 51 starts to adjust the clamping state of the two clamping plates 50, and gradually loosens the clamping of the non-woven fabric conveyed by the first lapping port 21. When the second unwinding member 30 reaches the feeding station and the non-woven fabric thereof starts to replace the unwinding, the sixth driving member 51 drives the two clamping plates 50 to clamp the non-woven fabric conveyed by the second lapping port 31.

[0072] Therefore, the clamping assembly can accurately control the position and conveying state of the non-woven fabric at the feeding port. By driving the two clamping plates 50 to reliably clamp the non-woven fabric through the sixth driving member 51, it can be ensured that the non-woven fabric maintains accurate position and stable tension when entering the subsequent production and processing links.

[0073] As a preferred technical solution of the present application, the rack 10 is provided with a seventh driving member 52 and a guide plate 53. Specifically, one end of the guide plate 53 is connected to the output end of the seventh driving member 52, and the other end of the guide plate 53 is connected to the sixth driving member 51. The seventh driving member 52 is used to drive the guide plate 53 to move, and the guide plate 53 is used to drive the sixth driving member 51 and the two clamping plates 50 to move during the movement.

[0074] On the basis of the structure, after the feeding port clamps the non-woven fabric in cooperation with the lapping port for feeding, the seventh driving member 52 drives the guide plate 53 to move, so that the guide plate 53 drives the sixth driving member 51 and the two clamping plates 50 to move away from the lapping port, and a certain length of non-woven fabric is pulled out.

[0075] Therefore, the head of the non-woven fabric is clamped by the two clamping plates 50 driven by the sixth driving member 51, and then the guide plate 53 is moved by the seventh driving member 52, and under the driving of the guide plate 53, the sixth driving member 51 and the two clamping plates 50 produce transverse movement, so that a certain length of non-woven fabric is pulled out in cooperation with the lapping port and the unwinding member, which can prepare for the subsequent processing procedures, such as providing a suitable starting state for the further transmission, cutting, compounding and other operations of the non-woven fabric in the equipment.

[0076] As a preferred technical solution of the present application, the rack 10 is provided with a guide rail 54, and the guide rail 54 extends in the horizontal direction, wherein the guide plate 53 is slidingly connected to the guide rail 54.

[0077] Specifically, the guide plate 53 is provided with a sliding groove, and the guide plate 53 is slidingly connected to the guide rail 54 through the sliding groove. In this way, when the seventh driving member 52 drives the guide plate 53 to move, the guide plate 53 slides along the guide rail 54 and drives the feeding port to pull out a certain length of non-woven fabric.

[0078] In this process, the guide rail 54 provides precise horizontal guidance for the guide plate 53, ensuring that the moving direction of the guide plate 53 is always horizontal, thereby ensuring that the clamping plate 50 connected thereto can stably approach or move away from the fabric guiding port in the horizontal direction, avoiding quality problems such as wrinkles and uneven stretching of the non-woven fabric when it is pulled out.

[0079] In addition, the third driving member 34, the fourth driving member 24, the fifth driving member 35, the sixth driving member 51 and the seventh driving member 52 can be electric push rods, air cylinders, servo motors combined with ball screws, etc.

[0080] As a preferred technical solution of the present application, the first unwinding member 20 and the second unwinding member 30 each include a fixed frame and a rotating roller, wherein the fixed frame is connected to the first connecting frame 23 or the second connecting frame 33, and the rotating roller is rotatably connected to the fixed frame and is used to guide the unwinding of the non-woven fabric during rotation.

[0081] On the basis of this structure, when the equipment is installed or the non-woven fabric roll is replaced, first, the non-woven fabric roll is installed on the rotating roller. The rotating roller is rotatably connected to the fixed frame through bearings and other components, and the rotating roller can flexibly rotate around its own axis. Then, the fixed frame is connected to the corresponding first connecting frame 23 or second connecting frame 33.

[0082] When the non-woven fabric roll is installed, the starting end of the non-woven fabric is passed through the corresponding fabric guiding port and is pulled to a position close to the feeding port. In this process, the rotating roller is in a stationary state. When the equipment is started, the rotating roller of the unwinding member starts to rotate at a constant speed. With the rotation of the rotating roller, the non-woven fabric roll gradually unwinds on the rotating roller, and the non-woven fabric is guided out through the first fabric guiding port 21 and then enters the subsequent production and processing link through the feeding port.

[0083] Therefore, through the rotational connection with the fixed frame, the rotating roller can make the non-woven fabric roll rotate smoothly on it, thereby realizing the orderly unwinding of the non-woven fabric.

[0084] The technical means disclosed in the application scheme are not limited to the technical means disclosed in the above-mentioned embodiments, and include technical solutions composed of any combination of the above technical features. It should be noted that, for ordinary skilled persons in the art, without departing from the principles of the application, several improvements and refinements can be made, which are also considered within the protection scope of the application.

Claims

1. An automatic nonwoven fabric changing device, characterized in that: include, The frame is equipped with a loading station and a loading port; An unwinding mechanism is provided on the frame; the unwinding mechanism includes a first unwinding component and a second unwinding component, the first unwinding component is provided with a first fabric guiding opening, the first unwinding component is used to guide the nonwoven fabric out through the first fabric guiding opening; the second unwinding component is provided with a second fabric guiding opening, the second unwinding component is used to guide the nonwoven fabric out through the second fabric guiding opening; A moving mechanism is used to drive the first unwinding component and the second unwinding component to move closer to or away from the feeding station, so that the first or second fabric feeding port cooperates with the feeding port to feed the material.

2. The apparatus according to claim 1, wherein: The system includes a detection component, which includes a first sensor and a second sensor. The first sensor is used to detect the position of the first unwinding component and generate a first electrical signal. The second sensor is used to detect the position of the second unwinding component and generate a second electrical signal. The moving mechanism starts and stops according to the first electrical signal and / or the second electrical signal.

3. The apparatus of claim 1, wherein: The unwinding mechanism includes a first connecting frame and a second connecting frame, the first unwinding component is connected to the first connecting frame, and the second unwinding component is connected to the second connecting frame; the moving mechanism includes a first driving component and a second driving component, the output end of the first driving component is connected to the first connecting frame, and the output end of the second driving component is connected to the second connecting frame.

4. The apparatus according to claim 3, wherein: The first connecting frame and the second connecting frame are arranged vertically; the unwinding assembly includes a third driving member, which is used to drive the second fabric guide opening to rise and fall after the second unwinding member reaches the feeding station, so that the second fabric guide opening is closer to or further away from the feeding port.

5. The apparatus of claim 4, wherein: The unwinding assembly includes a fourth driving member and a fifth driving member. The fourth driving member is disposed on one side of the first winding opening and is used to press or release the first winding opening. The fifth driving member is disposed on one side of the second winding opening and is used to press or release the second winding opening.

6. The apparatus of claim 5, wherein: Both the first and second fabric-straightening openings include two fabric-straightening plates arranged opposite each other, with a fabric-straightening gap formed between the two fabric-straightening plates. The fabric-straightening gap is used to smooth the nonwoven fabric when guiding its output.

7. An automatic replacement nonwoven fabric apparatus according to any one of claims 1 to 6, characterized in that: The frame is equipped with a clamping assembly, which includes two clamping plates arranged opposite each other and a sixth driving member. The two clamping plates are spaced apart to form the feeding port. The sixth driving member is used to drive the two clamping plates to move closer or further apart, so that the feeding port clamps or releases the nonwoven fabric conveyed from the first or second fabric feeding port.

8. The apparatus of claim 7, wherein: The frame is provided with a seventh driving component and a guide plate. One end of the guide plate is connected to the output end of the seventh driving component, and the other end of the guide plate is connected to the sixth driving component. The seventh driving component is used to drive the guide plate to move, and the guide plate is used to drive the sixth driving component and the two clamping plates to move during the movement.

9. The apparatus of claim 8, wherein: The frame is provided with guide rails that extend horizontally, and the guide plate is slidably connected to the guide rails.

10. The apparatus of claim 4, wherein: The first unwinding part and the second unwinding part each comprise a fixing frame and a rotating roller, the fixing frame is connected with the first connecting frame or the second connecting frame, the rotating roller is rotatably connected to the fixing frame, and the rotating roller is used for guiding the unwinding of the non-woven fabric during rotation.

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