A nonwoven fabric automatic splicing and unwinding device and unwinding method

Abstract

The present invention belongs to the technical field of non-woven fabric production, and provides a non-woven fabric automatic splicing and unwinding device and unwinding method, the device includes a base, two groups of brackets are fixedly installed on the base, a first support plate is commonly arranged on the bracket, a connecting plate slidably connected to the bracket is fixedly installed on the side of the first support plate, a first servo module driving the first support plate to move is arranged on the bracket, and an active feeding component is arranged at one end of the base. Compared with the prior art, the beneficial effects of the present invention are as follows: the connection of the two groups of non-woven fabrics is completed under the condition that the conveying speed of the non-woven fabrics remains unchanged, the conveying speed of the non-woven fabrics is ensured, and the two groups of non-woven fabrics are in a relatively static state when connected, which ensures that the two groups of non-woven fabrics can be stably aligned and connected head to tail, and improves the strength of the connection between the two groups of non-woven fabrics.

Description

Technical Field

[0001] The invention belongs to the technical field of nonwoven fabric production, and in particular relates to a nonwoven fabric automatic splicing and unwinding device and an unwinding method. Background Art

[0002] After the nonwoven fabric is produced, it needs to be unwound again during the subsequent processing. For example, after the meltblown fabric is produced, it needs to pass through the electret equipment to fill the meltblown fabric with charged particles so that the filtration efficiency of the product can meet the requirements. In order to achieve continuous production, the next roll of fabric needs to be connected in time when the previous roll of fabric is unwound, otherwise the production needs to be suspended and the fabric needs to be rewound.

[0003] Currently, the common method for joining nonwoven fabrics on the market is to join two rolls of fabric by manual ultrasonic welding. The fabric joined by ultrasonic welding has poor tensile strength and is easy to break when subjected to tension. In the production of nonwoven fabrics, a certain tension must be maintained during unwinding and rewinding. When the meltblown fabric is just unwound, the roll diameter is large and the tension needs to be adjusted to the maximum. The fabric joined by ultrasonic welding is easy to break. Summary of the invention

[0004] The object of the present invention is to provide a nonwoven fabric automatic splicing and unwinding device and an unwinding method, aiming to solve the technical problem in the prior art that the connection strength between two groups of nonwoven fabrics is low and thus easy to break.

[0005] The present invention is implemented as follows: a nonwoven fabric automatic splicing and unwinding device comprises a base, two sets of brackets are fixedly mounted on the base, a first support plate is commonly arranged on the bracket, a connecting plate slidably connected to the bracket is fixedly mounted on the side of the first support plate, a first servo module driving the first support plate to move is arranged on the bracket, and an active feeding assembly is arranged at one end of the base;

[0006] A support assembly for supporting the nonwoven fabric roll is provided at one end of the first support plate, a pressing assembly for pressing the nonwoven fabric is provided at the other end of the first support plate, a movable plate is provided at one end of the first support plate away from the support assembly, a first pressing plate is provided on the movable plate, a camera is fixedly installed on a side of the first pressing plate close to the first support plate, a gap is provided between the side of the first pressing plate away from the first support plate and the side of the movable plate, a cutting knife is provided on the first pressing plate, a second telescopic member is fixedly installed on the first pressing plate, an output end of the second telescopic member is fixedly connected to the cutting knife, a cutting plane of the cutting knife coincides with a side of the movable plate away from the first support plate, a second support plate is fixedly installed on the first support plate, a structural arrangement on the second support plate is the same as that on the first support plate, and a collecting plate is fixedly installed on a surface of the second support plate close to the first support plate;

[0007] The connecting plate is provided with a lifting plate, the lifting plate is provided with a third pressing plate, the third pressing plate is fixedly mounted with a fourth telescopic member, a hot melt plate is fixedly mounted at the output end of the fourth telescopic member, and a clamping assembly is also provided on the lifting plate.

[0008] Further technical solution: A mounting plate is fixedly mounted on one end of the first support plate away from the supporting assembly, the movable plate is slidably mounted on the mounting plate, and a second servo module for driving the movable plate to move is arranged on the mounting plate.

[0009] Further technical solution: A first telescopic member is fixedly installed on the bottom surface of the movable plate, and a first lower pressure frame is fixedly installed on the output end of the first telescopic member. The first lower pressure frame is a U-shaped structure and its vertical section passes through the first support plate. The first lower pressure frame is in sliding contact with the first support plate and the first lower pressure frame is fixedly connected to the first pressure plate.

[0010] Further technical solution: a rotating plate is rotatably installed on the first pressure plate, a second pressure plate is fixedly installed on one end of the rotating plate away from the first pressure plate, a rotating power part that drives the rotating plate to rotate is fixedly installed on the first pressure plate, and when the second pressure plate is in a horizontal state, one side surface of the second pressure plate is flush with the side surface of the movable plate away from the first support plate, and at the same time, the lower surface of the second pressure plate is flush with the lower surface of the first pressure plate.

[0011] Further technical solution: The active feeding assembly includes a first vertical plate, which is provided with two groups and fixedly installed on both sides of the base, and the two groups of first vertical plates are jointly rotatably installed with an active roller driven by a motor, and a first mounting frame is slidably installed on the first vertical plate, and the two groups of first mounting frames are jointly rotatably installed with a first clamping roller.

[0012] Further technical solution: The support assembly includes a second mounting frame, which is a U-shaped structure and is fixedly mounted on the first support plate. Two groups of symmetrically distributed support plates are slidably mounted on the horizontal section of the first support plate. Support tubes are rotatably mounted on the sides of the support plates close to each other. A threaded rod is rotatably mounted on the second mounting frame to drive the two groups of support plates to move synchronously in opposite directions.

[0013] Further technical solution: The clamping assembly includes a second vertical plate, which is provided with two groups and fixedly installed on both sides of the first support plate, and a third mounting frame is slidably installed on the two groups of second vertical plates, and a second clamping roller is rotatably installed in the third mounting frame. The second clamping roller is used in conjunction with the support roller on the first support plate, and a groove for installing the support roller is provided on the first support plate, and the upper surface of the support roller is flush with the upper surface of the first support plate, and the support roller is driven by a motor.

[0014] Further technical solution: a fourth mounting frame is fixedly mounted on the connecting plate, the lifting plate is slidably mounted on the fourth mounting frame, and a third servo module for driving the lifting plate to move is arranged on the fourth mounting frame.

[0015] Further technical solution: the third pressure plate is fixedly provided with a second lower pressure frame slidably connected to the lifting plate, the lifting plate is fixedly provided with a third telescopic part for driving the second lower pressure frame to move, a cavity is provided in the third pressure plate and a fan for conveying air into the cavity is fixedly provided on the third pressure plate, a plurality of groups of blowing holes are provided on the side of the third pressure plate close to the movable plate, and a gap is set between the side of the third pressure plate close to the movable plate and the side of the lifting plate close to the movable plate.

[0016] The present invention also provides a nonwoven fabric automatic splicing and unwinding method, which is applied to the above-mentioned nonwoven fabric automatic splicing and unwinding device, and comprises the following steps:

[0017] Step S1: installing two groups of nonwoven fabric rolls on the first support plate and the second support plate respectively, supporting the nonwoven fabric rolls by the support assembly, aligning the upper surface of the lifting plate with the upper surface of the first support plate, and then pulling out the end of the nonwoven fabric;

[0018] Step S2: The end of the nonwoven fabric on the first support plate passes through the pressing assembly, the first pressing plate, the third pressing plate and the pressing assembly on the lifting plate in sequence, and then the nonwoven fabric passes through the active feeding assembly. After the end of the nonwoven fabric on the second support plate passes through the pressing assembly and the first pressing plate, it is no longer unwound.

[0019] Step S3: the first pressing plate is moved downward to press the nonwoven fabric onto the movable plate, and the cutting knife cuts the end of the nonwoven fabric;

[0020] Step S4: After the setting is completed, the active feeding component can be used to transport the non-woven fabric. When the non-woven fabric roll on the first support plate is unwound and the tail end of the non-woven fabric moves to the bottom of the camera, the tail end of the non-woven fabric is captured by the camera. At this time, the first servo module drives the first support plate to move at the moving speed of the non-woven fabric, and at the same time, the first pressing plate presses and fixes the non-woven fabric, and then the tail end of the non-woven fabric is cut by the cutting knife;

[0021] Step S5: The nonwoven fabric is driven to move a set distance at a set speed by the pressing component on the lifting plate, so that the tail end of the nonwoven fabric is flush with the side of the lifting plate, and then the third pressing plate presses and fixes the tail end of the nonwoven fabric, and at the same time the third servo module drives the lifting plate to move upward so that the upper surface of the lifting plate is flush with the upper surface of the second support plate, and then the moving plate on the second support plate drives the head end of the nonwoven fabric on the second support plate to move until the moving plate contacts the lifting plate, at which time the head and tail of the two groups of nonwoven fabrics are aligned and contacted, and then the fourth telescopic member drives the hot melt plate to move downward and press the nonwoven fabric at the position where the head and tail are in contact to perform hot melt connection;

[0022] Step S6: After the hot melt connection is completed, the hot melt plate is reset, and the first and third pressing plates are released from fixing the nonwoven fabric. Then, the nonwoven fabric is actively driven to move by the pressing component, and the speed of releasing the nonwoven fabric is faster than the speed at which the active feeding component drives the nonwoven fabric to move, so that the first support plate can be reset at the same time. After the first support plate is reset, the moving speed of the nonwoven fabric driven by the pressing component and the active feeding component remains the same;

[0023] Step S7: Repeat the above steps to connect and unwind subsequent nonwoven fabric rolls.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The tail end of the nonwoven fabric is driven up and down by the lifting plate to be connected with the head end of the nonwoven fabric on the first support plate and the second support plate respectively, so as to ensure that the connection of the two groups of nonwoven fabrics is completed under the condition that the speed of the active feeding component conveying the nonwoven fabric remains unchanged, thereby ensuring the conveying speed of the nonwoven fabric, and the two groups of nonwoven fabrics are in a relatively static state when connected, ensuring that the two groups of nonwoven fabrics can be stably aligned and connected head to tail, avoiding disconnection at the connection of the two groups of nonwoven fabrics, and improving the strength of the connection between the two groups of nonwoven fabrics.

[0026] 2. In the initial state, the second pressing plate is in a horizontal state. The second pressing plate and the first pressing plate simultaneously press and fix the non-woven fabric below. When cutting, the second pressing plate can press the cutting edge of the non-woven fabric, thereby ensuring that the cutting edge of the non-woven fabric is neat and avoiding the random movement of the end of the non-woven fabric after cutting, thereby improving the position stability of the end of the non-woven fabric and further improving the quality of the alignment and connection of the ends of the subsequent two groups of non-woven fabrics.

[0027] 3. When the lifting plate moves upward, the fan delivers gas to the cavity of the third pressure plate, and the gas is blown out through the blowing holes. The blown air will blow to the surface of the non-woven fabric, so that the tail end of the non-woven fabric can be dusted under the action of the air, and at the same time, the tail end of the non-woven fabric can be laid flat on the lifting plate, ensuring that the tail end of the subsequent non-woven fabric can be aligned with the head end of the next group of non-woven fabrics. When the lifting plate is aligned with the second support plate, the fan stops, and continues to blow air after the subsequent hot melt connection is completed to accelerate the cooling of the hot melt position and further improve the strength of the connection between the two groups of non-woven fabrics. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0029] Figure 2 It is a schematic structural diagram of the first support plate and the second support plate in the present invention from a first viewing angle.

[0030] Figure 3 It is a schematic structural diagram of the first support plate and the second support plate from a second viewing angle in the present invention.

[0031] Figure 4 It is a schematic diagram of the structure of the movable plate in the present invention.

[0032] Figure 5 It is a structural schematic diagram of the lifting plate in the present invention.

[0033] Figure 6 for Figure 2 A magnified schematic diagram of the A1 region in the middle.

[0034] Figure 7 for Figure 4 A magnified schematic diagram of the A2 region in the middle.

[0035] In the attached drawings: 1, base; 2, first vertical plate; 3, active roller; 4, first pressing roller; 5, first mounting frame; 6, bracket; 7, first support plate; 8, connecting plate; 9, first servo module; 10, second support plate; 11, second mounting frame; 12, support plate; 13, threaded rod; 14, support cylinder; 15, second vertical plate; 16, third mounting frame; 17, second pressing roller; 18, support roller; 19, mounting plate; 20, moving plate; 21, second servo module; 22, first pressing plate; 23, Camera; 24, first telescopic member; 25, first lower pressure frame; 26, second telescopic member; 27, cutting knife; 28, rotating plate; 29, second pressure plate; 30, rotating power member; 31, fourth mounting frame; 32, lifting plate; 33, third servo module; 34, third telescopic member; 35, second lower pressure frame; 36, third pressure plate; 37, fourth telescopic member; 38, hot melt plate; 39, fan; 40, blowing hole; 41, collecting plate; 42, active feeding assembly; 43, supporting assembly; 44, clamping assembly. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0037] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0038] like Figure 1-Figure 7 As shown, a nonwoven fabric automatic splicing and unwinding device provided by the present invention comprises a base 1, two sets of brackets 6 are fixedly mounted on the base 1, a first support plate 7 is commonly arranged on the brackets 6, a connecting plate 8 slidably connected to the brackets 6 is fixedly mounted on the side of the first support plate 7, a first servo module 9 for driving the first support plate 7 to move is arranged on the bracket 6, and an active feeding assembly 42 is arranged at one end of the base 1;

[0039] A supporting assembly 43 for supporting the nonwoven fabric roll is provided at one end of the first supporting plate 7, a pressing assembly 44 for pressing the nonwoven fabric is provided at the other end of the first supporting plate 7, a movable plate 20 is provided at the end of the first supporting plate 7 away from the supporting assembly 43, a mounting plate 19 is fixedly installed at the end of the first supporting plate 7 away from the supporting assembly 43, the movable plate 20 is slidably installed on the mounting plate 19, a second servo module 21 for driving the movable plate 20 to move is provided on the mounting plate 19, a first pressing plate 22 is provided on the movable plate 20, a first telescopic member 24 is fixedly installed on the bottom surface of the movable plate 20, a first lower pressing frame 25 is fixedly installed on the output end of the first telescopic member 24, the first lower pressing frame 25 is a U-shaped structure and its vertical section passes through the first supporting plate 7, and the first lower pressing frame 25 and the first servo module 21 are connected to the first servo module 21. A support plate 7 is in sliding contact and the first lower pressing frame 25 is fixedly connected to the first support plate 22. A camera 23 is fixedly installed on the side of the first support plate 22 close to the first support plate 7. A gap is set between the side of the first support plate 22 away from the first support plate 7 and the side of the movable plate 20. A cutting knife 27 is set on the first support plate 22. A second telescopic member 26 is fixedly installed on the first support plate 22. The output end of the second telescopic member 26 is fixedly connected to the cutting knife 27. The cutting plane of the cutting knife 27 coincides with the side of the movable plate 20 away from the first support plate 7. A second support plate 10 is fixedly installed on the first support plate 7. The structural setting on the second support plate 10 is the same as that on the first support plate 7. A collecting plate 41 is fixedly installed on the surface of the second support plate 10 close to the first support plate 7.

[0040] A lifting plate 32 is provided on the connecting plate 8, and a fourth mounting frame 31 is fixedly installed on the connecting plate 8. The lifting plate 32 is slidably installed on the fourth mounting frame 31, and a third servo module 33 for driving the lifting plate 32 to move is provided on the fourth mounting frame 31. A third pressing plate 36 is provided on the lifting plate 32. A second lower pressing frame 35 slidably connected to the lifting plate 32 is fixedly installed on the third pressing plate 36. A third telescopic member 34 for driving the second lower pressing frame 35 to move is fixedly installed on the lifting plate 32. A cavity is provided in the third pressing plate 36, and a fan 39 for conveying air into the cavity is fixedly installed on the third pressing plate 36. A plurality of blowing holes 40 are provided on the side of the third pressing plate 36 close to the movable plate 20, and a gap is provided between the side of the third pressing plate 36 close to the movable plate 20 and the side of the lifting plate 32 close to the movable plate 20. A fourth telescopic member 37 is fixedly installed on the third pressing plate 36, and a hot melt plate 38 is fixedly installed on the output end of the fourth telescopic member 37. A clamping assembly 44 is also provided on the lifting plate 32.

[0041] In actual application of this embodiment, in the initial state, the first support plate 7 and the second support plate 10 are in contact with the movable plate 20 thereon, and two groups of non-woven fabric rolls are respectively mounted on the first support plate 7 and the second support plate 10, and the non-woven fabric rolls are supported by the support assembly 43, and the lifting plate 32 is driven downward by the third servo module 33 to align the upper surface of the lifting plate 32 with the upper surface of the first support plate 7, and then the end of the non-woven fabric is pulled out;

[0042] The end of the nonwoven fabric on the first support plate 7 passes through the clamping assembly 44, the first pressing plate 22, the third pressing plate 36 and the clamping assembly 44 on the lifting plate 32 in sequence, and then the nonwoven fabric passes through the active feeding assembly 42. After the end of the nonwoven fabric on the second support plate 10 passes through the clamping assembly 44 and the first pressing plate 22, it is no longer unwound. At this time, the first telescopic member 24 drives the first pressing plate 22 to move downward through the first lower pressing frame 25 to press the nonwoven fabric on the movable plate 20. Then, the second telescopic member 26 drives the cutting knife 27 to move downward to cut the end of the nonwoven fabric. After cutting, the cutting knife 27 is reset and the cut nonwoven fabric falls downward onto the collecting plate 41. After cutting, the second servo module 21 drives the movable plate 20 to move to the set position. At this time, the side of the movable plate 20 away from the second support plate 10 and the side of the lifting plate 32 close to the first support plate 7 are provided with a spacing for the hot melt plate 38 to pass through;

[0043] After the setting is completed, the active feeding component 42 can be used to transport the non-woven fabric. At the same time, the conveying speed of the non-woven fabric by the first support plate 7 and the pressing component 44 on the lifting plate 32 is the same as the conveying speed of the non-woven fabric by the active feeding component 42. When the non-woven fabric roll on the first support plate 7 is unwound and the tail end of the non-woven fabric moves to the bottom of the camera 23, the tail end of the non-woven fabric is captured by the camera 23. At this time, the first servo module 9 drives the first support plate 7 to move at the moving speed of the non-woven fabric, and at the same time, the first pressing plate 22 presses and fixes the non-woven fabric, and then the non-woven fabric is cut by the cutting knife 27. The tail end of the woven fabric is cut. After the cutting is completed, since the cutting position of the non-woven fabric is a fixed position, the distance from the tail end of the cut non-woven fabric to the side of the lifting plate 32 is a fixed value. At this time, the pressing component 44 on the lifting plate 32 drives the non-woven fabric to move a set distance at a set speed, so that the tail end of the non-woven fabric is flush with the side of the lifting plate 32. Then, the third pressing plate 36 presses and fixes the tail end of the non-woven fabric under the action of the third telescopic member 34. At the same time, the third servo module 33 drives the lifting plate 32 to move upward. When the upper surface of the lifting plate 32 is aligned with the upper surface of the second support plate 10, the lifting plate 32 is moved upward. After the surfaces are flush, it stops, and then the moving plate 20 on the second support plate 10 drives the head end of the non-woven fabric on the second support plate 10 to move until the moving plate 20 contacts the lifting plate 32. At this time, the head and tail of the two groups of non-woven fabrics are aligned and contacted, and then the fourth telescopic member 37 drives the hot melt plate 38 to move downward and press the non-woven fabric at the position where the head and tail are in contact to perform hot melt connection. After the hot melt connection is completed, the hot melt plate 38 is reset, and the fixation of the non-woven fabric by the first pressing plate 22 and the third pressing plate 36 can be released at this time, and then the non-woven fabric is actively driven to move by the pressing component 44, and the release speed of the non-woven fabric is faster than that of the active feeding group. The speed at which the nonwoven fabric is driven by the component 42 is fast, so that the first support plate 7 can be reset at the same time. After the first support plate 7 is reset, the moving speed of the nonwoven fabric driven by the pressing component 44 and the active feeding component 42 remains the same, thereby completing the connection of the two groups of nonwoven fabrics under the condition that the speed of the active feeding component 42 conveying the nonwoven fabric remains unchanged, ensuring the conveying speed of the nonwoven fabric, and the two groups of nonwoven fabrics are in a relatively static state when connected, ensuring that the two groups of nonwoven fabrics can be stably aligned and connected head to tail, avoiding disconnection at the connection of the two groups of nonwoven fabrics, and improving the strength of the connection between the two groups of nonwoven fabrics;

[0044] When the lifting plate 32 moves upward, the fan 39 delivers gas to the cavity of the third pressing plate 36, and the gas is blown out through the blowing holes 40. The blown air will blow to the surface of the non-woven fabric, so that the tail end of the non-woven fabric can be dusted under the action of the air, and at the same time, the tail end of the non-woven fabric can be laid flat on the lifting plate 32, ensuring that the tail end of the subsequent non-woven fabric can be aligned with the head end of the next group of non-woven fabrics. When the lifting plate 32 is aligned with the second support plate 10, the fan 39 stops, and continues to blow air after the subsequent hot melt connection is completed, so as to accelerate the cooling of the hot melt position and further improve the strength of the connection between the two groups of non-woven fabrics;

[0045] At this time, a new non-woven fabric roll can be placed on the first support plate 7, and the above steps can be followed. After the non-woven fabric on the second support plate 10 is unwound, the above operations can be repeated to move the lifting plate 32 downward and align it with the first support plate 7, thereby completing the continuous connection and unwinding of multiple groups of non-woven fabric rolls, thereby improving the speed and efficiency of the non-woven fabric unwinding.

[0046] In an example of the present embodiment, the first telescopic member 24, the second telescopic member 26, the third telescopic member 34, and the fourth telescopic member 37 are respectively the first, second, third, and fourth electric telescopic rods. Of course, they can also be other components that can actively change the length, such as hydraulic cylinders, and different components can be driven to move through different electric telescopic rods.

[0047] like Figure 4 , Figure 7 As shown, an automatic splicing and unwinding device for nonwoven fabrics provided by the present invention is provided, wherein a rotating plate 28 is rotatably mounted on the first pressing plate 22, a second pressing plate 29 is fixedly mounted on one end of the rotating plate 28 away from the first pressing plate 22, a rotating power member 30 for driving the rotating plate 28 to rotate is fixedly mounted on the first pressing plate 22, and when the second pressing plate 29 is in a horizontal state, one side surface thereof is flush with the side surface of the movable plate 20 away from the first support plate 7, and at the same time, the lower surface of the second pressing plate 29 is flush with the lower surface of the first pressing plate 22.

[0048] In actual application of this embodiment, in the initial state, the second pressing plate 29 is in a horizontal state, and the second pressing plate 29 and the first pressing plate 22 simultaneously press and fix the nonwoven fabric below. When cutting, the second pressing plate 29 can press the cutting edge of the nonwoven fabric, thereby ensuring that the cutting edge of the nonwoven fabric is neat and avoiding the random movement of the end of the nonwoven fabric after cutting, thereby improving the stability of the position of the end of the nonwoven fabric, and further improving the quality of the subsequent alignment and connection of the ends of the two groups of nonwoven fabrics;

[0049] When the subsequent moving plate 20 is about to contact the lifting plate 32, the rotating power part 30 drives the second pressing plate 29 to rotate in the opposite direction to a vertical state. Then the moving plate 20 contacts the lifting plate 32 to align the ends of the two groups of non-woven fabrics, leaving an area for contact with the hot melt plate 38 at the contact position of the two groups of non-woven fabrics.

[0050] In one embodiment of the present invention, the rotating power member 30 is a motor, and of course it can also be other components capable of outputting rotating power, such as a hydraulic motor, and the second pressing plate 29 is driven to rotate by the motor.

[0051] like Figure 1 As shown, an automatic splicing and unwinding device for nonwoven fabrics provided by the present invention, the active feeding component 42 includes a first vertical plate 2, two groups of the first vertical plates 2 are provided and fixedly installed on both sides of the base 1, the two groups of first vertical plates 2 are jointly rotatably installed with an active roller 3 driven by a motor, a first mounting frame 5 is slidably installed on the first vertical plate 2, and the two groups of first mounting frames 5 are jointly rotatably installed with a first clamping roller 4.

[0052] In actual application of this embodiment, the non-woven fabric passes between the active roller 3 and the first pressing roller 4, so that the first pressing roller 4 presses the non-woven fabric onto the active roller 3 and fixes the position of the first pressing roller 4 through the first mounting frame 5, and the active roller 3 is driven to rotate by the motor, so that the non-woven fabric can be continuously unwound and moved.

[0053] like Figure 1-Figure 3 As shown, an automatic splicing and unwinding device for nonwoven fabrics provided by the present invention is provided, wherein the support assembly 43 comprises a second mounting frame 11, the second mounting frame 11 is a U-shaped structure and is fixedly mounted on the first support plate 7, two groups of symmetrically distributed support plates 12 are slidably mounted on the horizontal section of the first support plate 7, support cylinders 14 are rotatably mounted on the sides of the support plates 12 close to each other, and a threaded rod 13 is rotatably mounted on the second mounting frame 11 for driving the two groups of support plates 12 to move synchronously in opposite directions.

[0054] In actual application of this embodiment, the non-woven fabric roll is moved between the two groups of support plates 12 and the axis of the non-woven fabric roll is made to coincide with the axis of the support tube 14. At this time, the threaded rod 13 is rotated to drive the two groups of support plates 12 to move inward synchronously, so that the rod of the non-woven fabric roll is inserted into the support tube 14. The non-woven fabric roll is supported by the two groups of support tubes 14. When the non-woven fabric is subsequently unrolled, the support tube 14 rotates, and the non-woven fabric roll can be replaced by reverse operation.

[0055] like Figure 1-Figure 3 , Figure 6As shown, an automatic splicing and unwinding device for nonwoven fabrics provided by the present invention, the pressing component 44 includes a second vertical plate 15, two groups of the second vertical plates 15 are provided and fixedly installed on both sides of the first support plate 7, a third mounting frame 16 is slidably installed on the two groups of second vertical plates 15, a second pressing roller 17 is rotatably installed in the third mounting frame 16, the second pressing roller 17 is used in conjunction with a supporting roller 18 on the first support plate 7, a groove for installing the supporting roller 18 is provided on the first support plate 7, and the upper surface of the supporting roller 18 is flush with the upper surface of the first support plate 7, and the supporting roller 18 is driven by a motor.

[0056] In actual application of this embodiment, the nonwoven fabric is passed between the supporting roller 18 and the second pressing roller 17, so that the second pressing roller 17 presses the nonwoven fabric onto the supporting roller 18. Then, the supporting roller 18 rotates to actively move the nonwoven fabric, and the first support plate 7, the second support plate 10 and the pressing assembly 44 on the lifting plate 32 can fix the nonwoven fabric on both sides of the connection between the two groups of nonwoven fabrics, thereby further ensuring the stability of the connection between the nonwoven fabrics and improving the quality of the connection between the two groups of nonwoven fabrics.

[0057] like Figure 1-Figure 7 As shown, the present invention provides a nonwoven fabric automatic splicing and unwinding method, which is applied to the above-mentioned nonwoven fabric automatic splicing and unwinding equipment, and comprises the following steps:

[0058] Step S1: Install two groups of non-woven fabric rolls on the first support plate 7 and the second support plate 10 respectively, support the non-woven fabric rolls by the support assembly 43, align the upper surface of the lifting plate 32 with the upper surface of the first support plate 7, and then pull out the end of the non-woven fabric;

[0059] Step S2: The end of the nonwoven fabric on the first support plate 7 passes through the pressing assembly 44, the first pressing plate 22, the third pressing plate 36 and the pressing assembly 44 on the lifting plate 32 in sequence, and then the nonwoven fabric passes through the active feeding assembly 42. After the end of the nonwoven fabric on the second support plate 10 passes through the pressing assembly 44 and the first pressing plate 22, the nonwoven fabric is no longer unwound.

[0060] Step S3: The first pressing plate 22 is moved downward to press the nonwoven fabric onto the movable plate 20, and the cutting knife 27 cuts the end of the nonwoven fabric;

[0061] Step S4: After the setting is completed, the active feeding component 42 can be used to transport the non-woven fabric. When the non-woven fabric roll on the first support plate 7 is unwound and the tail end of the non-woven fabric moves to the bottom of the camera 23, the tail end of the non-woven fabric is captured by the camera 23. At this time, the first servo module 9 drives the first support plate 7 to move at the moving speed of the non-woven fabric, and at the same time, the first pressing plate 22 presses and fixes the non-woven fabric, and then the tail end of the non-woven fabric is cut by the cutting knife 27;

[0062] Step S5: The nonwoven fabric is driven to move a set distance at a set speed by the pressing assembly 44 on the lifting plate 32, so that the tail end of the nonwoven fabric is flush with the side of the lifting plate 32, and then the third pressing plate 36 presses and fixes the tail end of the nonwoven fabric, and at the same time the third servo module 33 drives the lifting plate 32 to move upward so that the upper surface of the lifting plate 32 is flush with the upper surface of the second support plate 10, and then the moving plate 20 on the second support plate 10 drives the head end of the nonwoven fabric on the second support plate 10 to move until the moving plate 20 contacts the lifting plate 32, at this time, the head and tail of the two groups of nonwoven fabrics are aligned and contacted, and then the fourth telescopic member 37 drives the hot melt plate 38 to move downward and press the nonwoven fabric at the position where the head and tail are in contact to perform hot melt connection;

[0063] Step S6: After the hot melt connection is completed, the hot melt plate 38 is reset, and the fixation of the non-woven fabric by the first pressing plate 22 and the third pressing plate 36 is released. Then, the non-woven fabric is actively driven to move by the pressing component 44, and the release speed of the non-woven fabric is faster than the speed at which the active feeding component 42 drives the non-woven fabric to move, so that the first support plate 7 can be reset at the same time. After the first support plate 7 is reset, the movement speed of the non-woven fabric driven by the pressing component 44 and the active feeding component 42 remains the same;

[0064] Step S7: Repeat the above steps to connect and unwind subsequent nonwoven fabric rolls.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0066] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A nonwoven fabric automatic splicing and unwinding device, comprising a base (1), characterized in that: Two groups of brackets (6) are fixedly mounted on the base (1), a first support plate (7) is commonly arranged on the brackets (6), a connecting plate (8) slidably connected to the brackets (6) is fixedly mounted on the side of the first support plate (7), a first servo module (9) for driving the first support plate (7) to move is arranged on the bracket (6), and an active feeding assembly (42) is arranged at one end of the base (1); A support assembly (43) for supporting the non-woven fabric roll is disposed at one end of the first support plate (7), a pressing assembly (44) for pressing the non-woven fabric is disposed at the other end of the first support plate (7), a movable plate (20) is disposed at one end of the first support plate (7) away from the support assembly (43), a first pressing plate (22) is disposed on the movable plate (20), a camera (23) is fixedly mounted on a side of the first pressing plate (22) close to the first support plate (7), a gap is disposed between a side of the first pressing plate (22) away from the first support plate (7) and a side of the movable plate (20), and the first pressing plate (22) is provided with a first pressing plate (22). The plate (22) is provided with a cutting knife (27), a second telescopic member (26) is fixedly mounted on the first pressing plate (22), an output end of the second telescopic member (26) is fixedly connected to the cutting knife (27), a cutting plane of the cutting knife (27) coincides with a side of the movable plate (20) away from the first supporting plate (7), a second supporting plate (10) is fixedly mounted on the first supporting plate (7), a structural arrangement on the second supporting plate (10) is the same as that on the first supporting plate (7), and a collecting plate (41) is fixedly mounted on a surface of the second supporting plate (10) close to the first supporting plate (7); The connecting plate (8) is provided with a lifting plate (32), the lifting plate (32) is provided with a third pressing plate (36), a fourth telescopic member (37) is fixedly mounted on the third pressing plate (36), a hot melt plate (38) is fixedly mounted on the output end of the fourth telescopic member (37), and a pressing assembly (44) is also provided on the lifting plate (32); The third pressing plate (36) is fixedly provided with a second lower pressing frame (35) slidably connected to the lifting plate (32); the lifting plate (32) is fixedly provided with a third telescopic member (34) for driving the second lower pressing frame (35) to move; a cavity is provided in the third pressing plate (36) and a fan (39) for conveying air into the cavity is fixedly provided on the third pressing plate (36); a plurality of blowing holes (40) are provided on a side of the third pressing plate (36) close to the movable plate (20); and a gap is provided between a side of the third pressing plate (36) close to the movable plate (20) and a side of the lifting plate (32) close to the movable plate (20); A rotating plate (28) is rotatably mounted on the first pressing plate (22), a second pressing plate (29) is fixedly mounted on one end of the rotating plate (28) away from the first pressing plate (22), a rotating power member (30) for driving the rotating plate (28) to rotate is fixedly mounted on the first pressing plate (22), and when the second pressing plate (29) is in a horizontal state, one side surface thereof is flush with a side surface of the movable plate (20) away from the first supporting plate (7), and at the same time, a lower surface of the second pressing plate (29) is flush with a lower surface of the first pressing plate (22).

2. The nonwoven fabric automatic splicing and unwinding device according to claim 1, characterized in that: A mounting plate (19) is fixedly mounted on one end of the first support plate (7) away from the supporting assembly (43); the movable plate (20) is slidably mounted on the mounting plate (19); and a second servo module (21) is provided on the mounting plate (19) for driving the movable plate (20) to move.

3. The nonwoven fabric automatic splicing and unwinding device according to claim 2, characterized in that: A first telescopic member (24) is fixedly mounted on the bottom surface of the movable plate (20), and a first lower pressing frame (25) is fixedly mounted on the output end of the first telescopic member (24). The first lower pressing frame (25) is a U-shaped structure and its vertical section passes through the first supporting plate (7). The first lower pressing frame (25) is in sliding contact with the first supporting plate (7) and is fixedly connected to the first pressing plate (22).

4. The nonwoven fabric automatic splicing and unwinding device according to claim 1, characterized in that: The active feeding assembly (42) comprises a first vertical plate (2), wherein two groups of the first vertical plates (2) are provided and fixedly mounted on both sides of the base (1), the two groups of first vertical plates (2) are jointly rotatably mounted with an active roller (3) driven by a motor, a first mounting frame (5) is slidably mounted on the first vertical plate (2), and the two groups of first mounting frames (5) are jointly rotatably mounted with a first pressing roller (4).

5. The nonwoven fabric automatic splicing and unwinding device according to claim 1, characterized in that: The support assembly (43) comprises a second mounting frame (11), the second mounting frame (11) being of a U-shaped structure and fixedly mounted on the first support plate (7), two groups of symmetrically distributed support plates (12) being slidably mounted on the horizontal section of the first support plate (7), support cylinders (14) being rotatably mounted on mutually adjacent sides of the support plates (12), and a threaded rod (13) being rotatably mounted on the second mounting frame (11) for driving the two groups of support plates (12) to move synchronously in opposite directions.

6. The nonwoven fabric automatic splicing and unwinding device according to claim 1, characterized in that: The clamping assembly (44) comprises a second vertical plate (15), wherein two groups of the second vertical plates (15) are provided and fixedly mounted on both sides of the first support plate (7), a third mounting frame (16) is slidably mounted on the two groups of second vertical plates (15), a second clamping roller (17) is rotatably mounted in the third mounting frame (16), the second clamping roller (17) cooperates with a supporting roller (18) on the first support plate (7), a groove for mounting the supporting roller (18) is provided on the first support plate (7), and the upper surface of the supporting roller (18) is flush with the upper surface of the first support plate (7), and the supporting roller (18) is driven by a motor.

7. The nonwoven fabric automatic splicing and unwinding device according to claim 1, characterized in that: A fourth mounting frame (31) is fixedly mounted on the connecting plate (8), a lifting plate (32) is slidably mounted on the fourth mounting frame (31), and a third servo module (33) is provided on the fourth mounting frame (31) for driving the lifting plate (32) to move.

8. A method for automatically splicing and unwinding nonwoven fabrics, characterized in that: A nonwoven fabric automatic splicing and unwinding device as claimed in any one of claims 1 to 7, comprising the following steps: Step S1: installing two groups of non-woven fabric rolls on the first support plate (7) and the second support plate (10) respectively, supporting the non-woven fabric rolls by means of a support assembly (43), aligning the upper surface of the lifting plate (32) with the upper surface of the first support plate (7), and then pulling out the end of the non-woven fabric; Step S2: The end of the nonwoven fabric on the first support plate (7) passes through the clamping assembly (44), the first pressing plate (22), the third pressing plate (36) and the clamping assembly (44) on the lifting plate (32) in sequence, and then the nonwoven fabric passes through the active feeding assembly (42). After the end of the nonwoven fabric on the second support plate (10) passes through the clamping assembly (44) and the first pressing plate (22), the nonwoven fabric is no longer unwound. Step S3: the first pressing plate (22) is moved downward to press the nonwoven fabric onto the movable plate (20), and the cutting knife (27) cuts the end of the nonwoven fabric; Step S4: After the setting is completed, the active feeding component (42) can be used to transport the non-woven fabric. When the non-woven fabric roll on the first support plate (7) is unwound and the tail end of the non-woven fabric moves to the bottom of the camera (23), the tail end of the non-woven fabric is captured by the camera (23). At this time, the first servo module (9) drives the first support plate (7) to move at the moving speed of the non-woven fabric, and at the same time, the first pressing plate (22) presses and fixes the non-woven fabric, and then the tail end of the non-woven fabric is cut by the cutting knife (27); Step S5: The nonwoven fabric is driven to move a set distance at a set speed by the pressing assembly (44) on the lifting plate (32), so that the tail end of the nonwoven fabric is flush with the side of the lifting plate (32), and then the third pressing plate (36) presses and fixes the tail end of the nonwoven fabric, and at the same time the third servo module (33) drives the lifting plate (32) to move upward so that the upper surface of the lifting plate (32) is flush with the upper surface of the second support plate (10), and then the moving plate (20) on the second support plate (10) drives the head end of the nonwoven fabric on the second support plate (10) to move until the moving plate (20) contacts the lifting plate (32), at which time the head and tail of the two groups of nonwoven fabrics are aligned and contacted, and then the fourth telescopic member (37) drives the hot melt plate (38) to move downward and press the nonwoven fabric at the position where the head and tail are in contact to perform hot melt connection; Step S6: after the hot melt connection is completed, the hot melt plate (38) is reset, and the fixation of the non-woven fabric by the first pressing plate (22) and the third pressing plate (36) is released, and then the non-woven fabric is actively driven to move by the pressing component (44), and the speed of releasing the non-woven fabric is faster than the speed of the non-woven fabric driven to move by the active feeding component (42), so that the first support plate (7) can be reset at the same time. After the first support plate (7) is reset, the movement speed of the non-woven fabric driven by the pressing component (44) and the active feeding component (42) remains the same; Step S7: Repeat the above steps to connect and unwind subsequent nonwoven fabric rolls.

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