A flying knife type automatic reel receiving device

Abstract

An automatic sheet-jointing and reeling device with a flying knife design includes a frame, a dual-station winding mechanism, a swing seat, a first swing mechanism, a film splicing device, and a flying knife cutting device. The dual-station winding mechanism includes a flipping frame, a flipping mechanism, two winding shafts, and two winding motors. The two winding shafts are detachably mounted on the flipping frame and are respectively located at the winding and unwinding stations. The film splicing device includes a swing arm, a second swing mechanism, a pressure roller, a wrapping roller, a tension seat, a tension roller, an annular belt, and a tension spring. The pressure roller is rotatably mounted on the swing seat, the wrapping roller is rotatably mounted on the swing arm, and the tension roller is rotatably mounted on the tension seat. The wrapping roller, pressure roller, and tension roller tension the annular belt. One end of the tension spring is connected to the tension seat, and the other end is connected to the swing seat. The flying knife cutting device is located behind the film splicing device. This invention can automatically complete the cutting and splicing processes of sheet materials, avoiding phenomena such as sheet tip folding, loose core, and severe core misalignment.

Description

Technical Field

[0001] The invention relates to a winding device, in particular to a flying knife type automatic reeling and winding device. Background Art

[0002] After the sheet production equipment completes the production of the sheet, a winding device is usually required to wind the sheet.

[0003] Traditional winding devices generally have only one winding shaft. When the diameter of the sheet roll wound by the winding shaft reaches the set value and needs to be replaced, the machine must be stopped, and then the worker manually removes the sheet roll and installs a new winding shaft to continue winding. Since the traditional winding device needs to be stopped when changing the roll, it affects the continuous production or processing, and further affects the production efficiency.

[0004] In order to facilitate the roll-changing operation and improve production efficiency, people have designed a double-station winding device. The existing double-station winding device generally has two winding shafts installed on a rotating bracket, one of which is located at the winding station, and the other is located at the unloading station. When the winding shaft of the winding station is winding up the sheet material, a paper core can be pre-installed on the winding shaft of the unloading station to facilitate the non-stop winding of the sheet material when changing the roll; when the diameter of the sheet roll wound by the winding shaft of the winding station reaches the set value and needs to be changed, the rotating bracket is rotated 180 degrees, so that the winding shaft of the winding station and the winding shaft of the unloading station switch positions. In this way, the winding shaft with the sheet roll is located at the unloading station, and the winding shaft pre-installed with the paper core is located at the winding station. When the sheet between the two winding shafts is cut transversely, the sheet cut transversely will be wound on the winding shaft pre-installed with the paper core as the winding shaft of the winding station rotates. In this way, by using the two winding shafts to alternately wind the sheet, it is convenient to change the roll, thereby improving production efficiency. However, during the roll change process, when the sheet cut transversely is wound on the winding shaft, it is easy to cause the sheet head to be folded, the core to be loose, and the core to be seriously deviated, which seriously affects the quality of the sheet roll. In addition, this double-station winding device is generally a chopper type, which can only be used to cut sheets with a thickness range of 0.05-0.5mm. It is difficult to cut thicker sheets (such as sheets with a thickness of more than 0.6mm). Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a flying knife type automatic reeling and reeling device, which can automatically complete the cutting and reeling process of the sheet material, facilitate the reeling operation, and avoid the phenomenon of sheet head folding, loose core, serious core deviation, etc., which is conducive to ensuring the reeling quality. The adopted technical scheme is as follows:

[0006] The two reel motors are connected to the reel to move upwards and downwards to move the two reel shafts, and the two reel shafts are connected to the reel shafts by the two reel motors. The axis of the seat is arranged along the left-right direction, and the film joining device includes a swing arm, a second swing mechanism capable of driving the swing arm to swing up and down, a sheet pressing roller, a sheet wrapping roller, a tensioning seat, a tensioning roller, an annular belt and a stretching spring, the sheet pressing roller is rotatably mounted on the swing seat, the sheet pressing roller is located above the winding shaft of the winding station and corresponds to the position of the winding shaft; the second swing mechanism is installed on the swing seat, the axis of the swing arm is arranged along the left-right direction, the sheet wrapping roller is rotatably mounted on the swing arm, the axis of the sheet wrapping roller deviates from the axis of the swing arm and is located behind the sheet pressing roller; the tensioning seat is installed on the swing seat for forward and backward translation, the tensioning roller is rotatably mounted on the tensioning seat, the sheet wrapping roller, the sheet pressing roller and the tensioning roller jointly tension the annular belt; one end of the stretching spring is connected to the tensioning seat, and the other end of the stretching spring is connected to the swing seat; the flying knife cutting device is installed on the swing seat and is located behind the film joining device.

[0007] In this specification, the front and the back refer to: along the conveying direction of the sheet, the first one to arrive is the front and the slowest one to arrive is the back.

[0008] During operation, the winding shaft on the winding station rotates continuously under the drive of the corresponding winding motor to wind the sheet to form a sheet roll. Before reaching the double-station unwinding mechanism, the sheet passes under the film splicing device and the flying knife cutting device in sequence under the traction of the winding shaft. When the winding shaft on the winding station is working, the operator can install an empty paper core on the winding shaft of the unloading station to prepare for changing the roll in advance. When the diameter of the sheet roll wound on the winding shaft on the winding station reaches the set value, the winding shaft is first stopped, and then the turning frame is driven by the turning mechanism to turn over, so that the winding shaft on the winding station and the winding shaft on the unwinding station exchange positions, and then the first swing mechanism drives the swing seat and the film splicing device and the flying knife cutting device thereon to swing downward together, and the sheet is pushed to move toward the paper core on the winding shaft of the winding station through the sheet pressing roller and the endless belt, and the sheet is pressed tightly against the paper core through the sheet pressing roller and the endless belt. At the same time, the flying knife cutting device is activated to cut the part of the sheet between the two winding shafts transversely; then the second swing mechanism can drive the swing arm and the sheet wrapping roller to swing downward, and the transversely cut sheet is pushed to be wrapped around the surface of the paper core through the endless belt and the end of the sheet is pressed against the surface of the paper core (in this process, the tensioning seat and the tensioning roller have a forward movement under the action of the tension spring). The endless belt is automatically tensioned by the tensioning roller to connect the end of the transversely cut sheet to the surface of the paper core (the end of the sheet is generally provided with adhesive tape); then the winding shaft and the paper core on the winding station start to rotate under the drive of the corresponding winding motor, and the endless belt runs under the drive of the winding shaft. During this process, the sheet is wound around the paper core under the action of the endless belt to realize the winding of the sheet; after the paper core is wound to a certain length of sheet, the second swinging mechanism can drive the swing arm and the sheet wrapping roller to swing upward and reset, and then the first swinging mechanism drives the swing seat and the film connecting device and the flying knife cutting device thereon to swing upward and reset, so that the endless belt is completely separated from the winding shaft (during this process, the tensioning seat and the tensioning roller have a tendency to move forward under the action of the tension spring, and the endless belt is automatically tensioned by the tensioning roller), completing the entire roll changing operation. In the process of splicing the sheets, the sheet header is wrapped with an annular belt and rotates together with the reel, and the reel is actively wrapped, which can avoid the phenomenon of sheet header folding, loose core, serious core deviation, etc., which is conducive to ensuring the quality of reeling. In addition, the flying knife cutting device can automatically cut the sheet with a thickness of 0.05-2.5mm, which is conducive to ensuring the splicing quality of the sheets.

[0009] In a preferred embodiment, the swing seat is provided with a slide rail extending forward and backward, and the tensioning seat is mounted on the slide rail and slidably cooperates with the slide rail. When working, the tensioning seat and the tensioning roller slide forward or backward along the slide rail under the action of the annular belt and the tension spring.

[0010] In a preferred embodiment, the first swing mechanism includes a first swing shaft and a first cylinder. The first swing shaft is rotatably mounted on the frame and is oriented left and right. The front end of the swing seat is fixedly mounted on the first swing shaft. The cylinder body of the first cylinder is hinged to the frame, and the piston rod of the first cylinder is hinged to the middle of the swing seat. When working, the swing seat and the film connection device and the flying knife cutting device thereon can be driven to swing upward or downward around the first swing shaft by the extension and contraction of the piston rod of the first cylinder.

[0011] In the preferred embodiment, the second swing mechanism includes a second swing shaft, a swing motor and a reduction gear set, the swing motor is mounted on the swing seat, the second swing shaft is rotatably mounted on the swing seat and arranged in the left and right directions, the first end of the swing arm is connected to the second swing shaft, and the sheet wrapping roller is rotatably mounted on the second end of the swing arm; the primary gear of the reduction gear set is fixedly mounted on the power output shaft of the swing motor, and the final gear of the reduction gear set is fixedly mounted on the second swing shaft. When working, the swing motor drives the second swing shaft to rotate forward or reversely through the reduction gear set, driving the swing arm and the sheet wrapping roller to swing upward or downward around the second swing shaft.

[0012] In a preferred embodiment, the flip mechanism includes a rotating shaft and a flip motor, the rotating shaft is rotatably mounted on the frame and arranged in the left-right direction, the middle part of the flip frame is fixedly mounted on the rotating shaft, and the two winding shafts are symmetrically distributed on both sides of the rotating shaft. When working, the flip motor drives the rotating shaft to rotate 180 degrees, driving the flip frame to flip 180 degrees, so that the winding shaft on the winding station and the winding shaft on the unwinding station exchange positions.

[0013] In a preferred embodiment, the flying knife cutting device comprises a flying knife and a rodless cylinder, the cylinder body of the rodless cylinder is mounted on the swing seat, and the flying knife is mounted on the slider of the rodless cylinder. When working, the flying knife moves toward the sheet material under the drive of the slider of the rodless cylinder, and the sheet material is cut transversely by the blade of the flying knife, and can automatically cut the sheet material with a thickness of 0.05-2.5 mm.

[0014] The flying knife type automatic reeling and winding device of the present invention can automatically complete the cutting and splicing processes of sheets with a thickness of 0.05-2.5mm, which is convenient for completing the roll changing operation. In the splicing process, since the sheet head is wrapped with an annular belt and rotates together with the winding shaft, it can avoid the phenomenon of folding of the sheet head, loose core, serious deviation of the core, etc., which is beneficial to ensure the winding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a flying knife type automatic reel receiving device according to a preferred embodiment of the present invention.

[0016] Figure 2 yes Figure 1The diagram shown is a schematic diagram of the flying knife type automatic reel receiving device in the state of preparing for reel reel reeling.

[0017] Figure 3 yes Figure 1 The diagram shown is a schematic diagram of the status of the flying knife type automatic reel receiving device during the reel reeling process. DETAILED DESCRIPTION

[0018] like Figure 1-Figure 3 As shown, the flying knife type automatic reeling and receiving device comprises a frame 1, a double-station reeling mechanism 2, a swing seat 3, a first swing mechanism 4 capable of driving the swing seat 3 to swing up and down, a film splicing device 5 and a flying knife cutting device 6; the double-station reeling mechanism 2 comprises a turning frame 21, a turning mechanism 22 capable of driving the turning frame 21 to rotate, two reeling shafts 23 and two reeling motors (not shown in the figure), the turning mechanism 22 is installed on the frame 1, the axis of the turning frame 21 is left-right, and the two reeling shafts 23 are left-right. 23 can be detachably mounted on the turning frame 21, the double-station winding mechanism 2 has a winding station 201 and an unwinding station 202, and the two winding shafts 23 are respectively located at the winding station 201 and the unwinding station 202; the two winding motors correspond to the two winding shafts 23 one by one, the winding motors are mounted on the turning frame 21, and the power output shafts of the winding motors are transmission-connected with the corresponding winding shafts 23; the first swing mechanism 4 is mounted on the frame 1, and the axis of the swing seat 3 is arranged along the left and right directions; the film splicing device 5 The present invention comprises a swing arm 51, a second swing mechanism 52 capable of driving the swing arm 51 to swing up and down, a sheet pressing roller 53, a sheet wrapping roller 54, a tensioning seat 55, a tensioning roller 56, an annular belt 57 and a tension spring 58. The sheet pressing roller 53 is rotatably mounted on the swing seat 3. The sheet pressing roller 53 is located above the winding shaft 23 of the winding station 201 and corresponds to the position of the winding shaft 23. The second swing mechanism 52 is mounted on the swing seat 3. The axis of the swing arm 51 is arranged in the left-right direction. The sheet wrapping roller 54 is rotatably mounted. On the swing arm 51, the axis of the wrapping roller 54 deviates from the axis of the swing arm 51 and is located behind the pressing roller 53; the tensioning seat 55 can be installed on the swing seat 3 for forward and backward translation, and the tensioning roller 56 can be rotatably installed on the tensioning seat 55. The wrapping roller 54, the pressing roller 53 and the tensioning roller 56 jointly tension the annular belt 57; one end of the tension spring 58 is connected to the tensioning seat 55, and the other end of the tension spring 58 is connected to the swing seat 3; the flying knife cutting device 6 is installed on the swing seat 3 and is located behind the film joining device 5.

[0019] In this embodiment, the first swing mechanism 4 includes a first swing shaft 41 and a first cylinder (not shown in the figure). The first swing shaft 41 can be rotatably mounted on the frame 1 and runs left and right. The front end of the swing seat 3 is fixedly mounted on the first swing shaft 41; the cylinder body of the first cylinder is hinged to the frame 1, and the piston rod of the first cylinder is hinged to the middle part of the swing seat 3.

[0020] In this embodiment, the flipping mechanism 22 includes a rotating shaft 221 and a flipping motor. The rotating shaft 221 can be rotatably mounted on the frame 1 and is arranged along the left and right directions. The middle part of the flip frame 21 is fixedly mounted on the rotating shaft 221, and the two winding shafts 23 are symmetrically distributed on both sides of the rotating shaft 221.

[0021] In this embodiment, the second swing mechanism 52 includes a second swing shaft 521, a swing motor (not shown in the figure) and a reduction gear group (not shown in the figure), the swing motor is mounted on the swing seat 3, the second swing shaft 521 is rotatably mounted on the swing seat 3 and is arranged along the left and right directions, the first end of the swing arm 51 is connected to the second swing shaft 521, and the wrapping roller 54 is rotatably mounted on the second end of the swing arm 51; the primary gear of the reduction gear group is fixedly mounted on the power output shaft of the swing motor, and the final gear of the reduction gear group is fixedly mounted on the second swing shaft 521.

[0022] In this embodiment, the flying knife cutting device 6 includes a flying knife 61 and a rodless cylinder 62 . The cylinder body of the rodless cylinder 62 is installed on the swing seat 3 , and the flying knife 61 is installed on the slider of the rodless cylinder 62 .

[0023] The following is a brief description of the working principle of this flying knife type automatic reel receiving device:

[0024] During operation, the reel 23 at the reeling station 201 on the double-station reeling mechanism 2 rotates continuously under the drive of the corresponding reeling motor to reel the sheet 10 into a sheet roll. Before reaching the double-station unwinding mechanism, the sheet 10 passes under the film splicing device 5 and the flying knife cutting device 6 in sequence under the traction of the reel 23. When the reel 23 at the reeling station 201 is working, the operator can install an empty paper core on the reel 23 at the unloading station 202 to prepare for reel replacement in advance. When the diameter of the sheet roll wound on the winding shaft 23 on the winding station 201 reaches the set value, the winding shaft 23 is first stopped, and then the turning motor of the turning mechanism 22 drives the rotating shaft 221 to rotate, driving the turning frame 21 to turn 180 degrees, so that the winding shaft 23 on the winding station 201 and the winding shaft 23 on the unwinding station 202 exchange positions, and then the cylinder of the first swing mechanism 4 drives the swing seat 3 and the film splicing device 5 and the flying knife cutting device 6 thereon to swing downward around the first swing shaft 41, and the sheet 10 is pushed toward the winding shaft 23 of the winding station 201 through the sheet pressing roller 53 and the endless belt 57. The paper core moves, and the sheet 10 is pressed and attached to the paper core through the pressing roller 53 and the endless belt 57. At the same time, the slider of the rodless cylinder 62 of the flying knife cutting device 6 drives the flying knife 61 to move toward the sheet 10, and the part of the sheet 10 between the two winding shafts 23 is cut transversely; then the swing motor of the second swing mechanism 52 drives the second swing shaft 521 to rotate forwardly through the reduction gear group, driving the swing arm 51 and the wrapping roller 54 to swing downward around the second swing shaft 521, and the transversely cut sheet 10 is pushed to be wrapped around the surface of the paper core through the endless belt 57 and the end of the sheet 10 is pressed against the surface of the paper core (in this process During the process, the tensioning seat 55 and the tensioning roller 56 have a tendency to move forward under the action of the tension spring 58, and the annular belt 57 is automatically tensioned by the tensioning roller 56), and the end of the transversely cut sheet 10 is connected to the surface of the paper core (the end of the sheet is generally provided with adhesive tape); then the reel 23 and the paper core on the reeling station 201 start to rotate under the drive of the corresponding reeling motor, and the annular belt 57 runs under the drive of the reel 23. In this process, the sheet 10 is wound on the paper core under the action of the annular belt 57, so that the sheet 10 is wound; when the paper core is wound to a certain length, the sheet 10, the swing motor of the second swing mechanism 52 drives the second swing shaft 521 to rotate in the opposite direction through the reduction gear set, driving the swing arm 51 and the wrapping roller 54 to swing upward and reset around the second swing shaft 521, and then the cylinder of the first swing mechanism 4 drives the swing seat 3 and the film joining device 5 and the flying knife cutting device 6 thereon to swing upward and reset around the first swing shaft 41, so that the annular belt 57 is completely separated from the winding shaft 23 (in this process, the tensioning seat 55 and the tensioning roller 56 have a tendency to move forward under the action of the tension spring 58, and the annular belt 57 is automatically tensioned by the tensioning roller 56), completing the entire roll changing operation.

[0025] In addition, it should be noted that the names of the various parts of the specific embodiments described in this specification may be different, and any equivalent or simple changes made based on the structure, features and principles described in the patent concept of the present invention are included in the protection scope of the patent of the present invention. The technicians in the technical field of the present invention can make various modifications or supplements to the specific embodiments described or replace them in a similar manner, as long as they do not deviate from the structure of the present invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims

The camshaft is an angularly-shaped member which is adapted to move the rollers towards the centre of the frame, wherein the two rollers are arranged on a rotation axis which is adapted to move the rollers towards the centre of the frame. The flying knife type automatic reeling and receiving device also includes a swing seat, a first swing mechanism capable of driving the swing seat to swing up and down, a film splicing device and a flying knife cutting device, the first swing mechanism is installed on the frame, the axis of the swing seat is arranged along the left and right directions, the film splicing device includes a swing arm, a second swing mechanism capable of driving the swing arm to swing up and down, a sheet pressing roller, a sheet wrapping roller, a tensioning seat, a tensioning roller, an annular belt and a tension spring, the sheet pressing roller is rotatably installed on the swing seat, the sheet pressing roller is located above the winding shaft of the winding station and corresponds to the position of the winding shaft; the second swing mechanism is installed on the swing seat, the swing arm The axis is arranged along the left-right direction, and the sheet wrapping roller is rotatably mounted on the swing arm, and the axis of the sheet wrapping roller deviates from the axis of the swing arm and is located behind the sheet pressing roller; the tensioning seat is installed on the swing seat and can be translated forward and backward, and the tensioning roller is rotatably mounted on the tensioning seat, and the sheet wrapping roller, the sheet pressing roller and the tensioning roller jointly tension the annular belt; one end of the tension spring is connected to the tensioning seat, and the other end of the tension spring is connected to the swing seat; the flying knife cutting device is installed on the swing seat and is located behind the film joining device, and the flying knife cutting device includes a flying knife and a rodless cylinder, the cylinder body of the rodless cylinder is installed on the swing seat, and the flying knife is installed on the slider of the rodless cylinder.

2. A flying knife type automatic reel receiving device according to claim 1, characterized in that: The swing seat is provided with a slide rail extending forward and backward, and the tensioning seat is installed on the slide rail and slidably cooperates with the slide rail.

3. A flying knife type automatic reel receiving device according to claim 1, characterized in that: The first swing mechanism includes a first swing shaft and a first cylinder. The first swing shaft can be rotatably mounted on the frame and runs left and right. The front end of the swing seat is fixedly mounted on the first swing shaft. The cylinder body of the first cylinder is hinged to the frame, and the piston rod of the first cylinder is hinged to the middle part of the swing seat.

4. A flying knife type automatic reel receiving device according to any one of claims 1 to 3, characterized in that: The second swing mechanism includes a second swing shaft, a swing motor and a reduction gear group. The swing motor is installed on the swing seat. The second swing shaft is rotatably installed on the swing seat and is arranged along the left and right directions. The first end of the swing arm is connected to the second swing shaft, and the sheet wrapping roller is rotatably installed on the second end of the swing arm; the primary gear of the reduction gear group is fixedly installed on the power output shaft of the swing motor, and the final gear of the reduction gear group is fixedly installed on the second swing shaft.

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