Adjustable cutting device for winding equipment

Abstract

The present invention relates to a winding device, and in particular to an adjustable cutting device of the winding device. The present invention provides the following technical solutions: an adjustable cutting device of the winding device, comprising an upper knife mechanism, a lower knife mechanism and a paper pressing mechanism, a pre-cutting station is provided between the upper knife mechanism and the lower knife mechanism, the upper knife mechanism comprises an upper swing arm, an upper knife component and a first driving source; the lower knife mechanism comprises a lower swing arm, a lower knife component and a second driving source; the upper knife mechanism has adjustment wall panels symmetrically arranged in pairs and connected by a cutter drive shaft, the paper pressing mechanism comprises a front paper pressing roller of the cutter and a rear paper pressing roller assembly of the cutter, the rear paper pressing roller assembly of the cutter comprises a rear paper pressing roller, a pressure roller swing arm and a third driving source; a stroke adjustment mechanism is provided between the two adjustment wall panels. By adopting the above technical solution, an adjustable cutting device of the winding device is provided, which can be adjusted according to the winding rolls of different thicknesses and the cutting distance, and the adjustment method is simple.

Description

Technical Field

[0001] The invention relates to a winding device, in particular to an adjustable cutting device of the winding device. Background Art

[0002] Cashier paper and label paper in supermarkets are mainly automatically rolled up by rolling equipment, which mainly consists of a feeding device, a rolling device, a cutting device, a paper feeding core device, a rolling device, a labeling device and a finished product output device. The cutting device consists of an upper knife mechanism and a corresponding lower knife mechanism.

[0003] As shown in the announcement number "CN 108190584 A" submitted by the applicant on December 24, 2017, and the subject name is "A cutting mechanism of a winder", it can be seen that the upper knife device therein includes an upper swing arm, an upper knife component installed on the upper swing arm, and a power source one for driving the upper swing arm to swing, and the lower knife device includes a lower swing arm, a lower knife seat installed with a lower cutting knife, and a power source two for driving the lower swing arm to swing, the lower knife seat is installed on the lower swing arm, and the upper swing arm and the lower swing arm are both hinged to the frame, the upper knife component includes an upper knife seat installed with an upper cutting knife and a power source three for driving the upper knife seat to perform cutting movement, in the pre-cutting working condition, the power source one and the power source two respectively drive the upper swing arm and the lower swing arm to swing toward each other to the pre-cutting station with their respective hinge points as the center, and in the cutting working condition, the power source three pushes the upper cutting knife to move to the lower cutting knife, and cooperates with the lower cutting knife to achieve cutting. The above design provides a cutting mechanism of a winding machine with high cutting accuracy and high stability.

[0004] However, during the processing, the applicant needs to change the thickness of the roll paper on the paper tube core according to the different needs of the manufacturer. As a result, the upper cutter needs to be fine-tuned to varying degrees as the upper swing arm swings in the direction of the pre-cutting station. Currently, the upper cutter device can only be replaced by replacing a different model of upper cutter device or adjusting the driving stroke of the power source 1 that drives the upper swing arm. Not only is the operation process cumbersome, but the entire machine needs to be adjusted again after replacement, which consumes a lot of manpower and material resources, directly reducing production efficiency and increasing labor costs. Adjusting the driving stroke of the power source 1 requires professional adjustment operators to operate, and disassembly and assembly are cumbersome and consume manpower and material resources. Summary of the invention

[0005] As a further improvement on the prior art, the present invention provides an adjustable cutting device for a winding device which can adjust and cut the distance according to winding reels of different thicknesses and has a simple and quick adjustment method.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an adjustable cutting device of a winding device, comprising an upper knife mechanism, a lower knife mechanism corresponding to the upper knife mechanism and a paper pressing mechanism located at the upper knife mechanism, a pre-cutting station is provided between the upper knife mechanism and the lower knife mechanism, the upper knife mechanism comprises an upper swing arm, an upper knife component linked to the upper swing arm and a first driving source driving the upper swing arm to swing toward the pre-cutting station; the lower knife mechanism comprises a lower swing arm, a lower knife component linked to the lower swing arm and a second driving source driving the lower swing arm to swing toward the pre-cutting station; it is characterized in that: the upper knife mechanism has adjusting wall panels symmetrically arranged in pairs, the two adjusting wall panels are connected by a cutter drive shaft which is rotatable and can cause the two adjusting wall panels to swing toward the pre-cutting station, and the paper pressing mechanism comprises respectively located The front paper pressing roller of the cutter and the rear paper pressing roller assembly of the cutter are on the lateral sides of the upper knife component, the front paper pressing roller of the front cutter is installed on the front part of the two adjustment wall panels, and the rear paper pressing roller assembly of the cutter includes a rear paper pressing roller, a pressure roller swing arm which is linked with the rear paper pressing roller and can cause the rear paper pressing roller to swing toward the pre-cutting station, and a third driving source for driving the pressure roller swing arm; the two adjustment wall panels are symmetrically provided with arc-shaped angle adjustment long grooves, an adjustment shaft is provided between the two adjustment wall panels, and adjustment parts which can slide back and forth in the angle adjustment long groove are respectively provided at the axial ends of the adjustment shaft, the upper knife mechanism and the rear paper pressing roller assembly of the cutter are respectively connected to the adjustment shaft through a linkage, and a stroke adjustment mechanism for adjusting the driving distance of the first driving source and the third driving source toward the pre-cutting station is provided between the two adjustment wall panels.

[0007] By adopting the above technical solution, the upper knife mechanism and the paper pressing mechanism are connected to the adjustment shafts mounted on the two adjustment wall panels through linkage parts, that is, the upper knife mechanism and the paper pressing mechanism are integrated between the two adjustment wall panels. At the same time, an arc-shaped angle adjustment slot is set on the two adjustment wall panels, and the axial ends of the adjustment shaft are installed in the arc-shaped angle adjustment slot through the adjustment parts and can slide back and forth in the arc-shaped angle adjustment slot. When the size (thickness) of the roll to be rolled up by the winding device is inconsistent, the cutting angle will inevitably be different. Therefore, the position of the adjustment shaft in the arc-shaped angle adjustment slot can be adjusted, so that the cutting and paper pressing angles of the upper knife mechanism and the paper pressing mechanism can be linked to change; at this time, due to the inconsistent thickness of the roll, the spacing during cutting will also change. Therefore, when adjusting the cutting and paper pressing angles, the driving stroke of the first driving source and the third driving source must be adjusted through the stroke adjustment mechanism. The above method is not only convenient to adjust, but also has a simple adjustment structure, without complicated operation process, and can realize the cutting device to cut rolls of different thicknesses, thereby reducing the production cost caused by the complicated operation process in the prior art. In addition, the shortening of the adjustment time can also indirectly improve the processing efficiency of the winding equipment.

[0008] The present invention is further configured as follows: the linkage comprises upper knife fixing plates symmetrically arranged in pairs between two adjustment wall panels, one end of the two upper knife fixing plates is hinged to the adjustment shaft, and the other end is connected through the upper knife rotating shaft, the upper swing arm comprises a mounting portion for mounting the upper knife component, a hinged portion hinged to the upper knife rotating shaft, and a driving portion located between the mounting portion and the hinged portion for driving by a first driving source; the pressure roller swing arm comprises a mounting end for mounting the rear paper pressing roller, a hinged end hinged to the upper knife rotating shaft, and a driving end located between the mounting end and the hinged end for driving by a third driving source; a driving source mounting frame is arranged between the two upper knife fixing plates, one end of the driving source mounting frame is hinged to the adjustment shaft, and the other end is connected to the upper knife fixing plate through a stroke adjustment mechanism, and the first driving source and the third driving source are respectively fixed on the driving source mounting frame.

[0009] By adopting the above technical solution, the upper knife mechanism and the rear paper pressing roller in the paper pressing mechanism and the drive source mounting frame for mounting the first drive source and the third drive source are respectively hinged on the same upper knife rotating shaft, so that the fulcrums of the three are the same when they swing, which not only makes the disassembly and assembly of the three more convenient, but also makes the linkage between them more stable.

[0010] The present invention is further configured as follows: the stroke adjustment mechanism includes a connecting rod fixedly arranged between the two upper knife fixing plates, an adjusting connecting rod respectively connected to the connecting rod and the driving source mounting frame, and a locking block capable of locking the adjusting connecting rod.

[0011] By adopting the above technical solution, the distance between the driving source mounting frame and the connecting rod on the upper knife fixing plate can be adjusted by adjusting the connecting rod, thereby adjusting the driving stroke of the first driving source and the second driving source on the driving source mounting frame to meet the cutting requirements of the upper cutter on the paper.

[0012] The present invention is further configured as follows: the upper knife component includes an upper knife mounting seat fixed to the upper swing arm and an upper blade fixed to the upper knife mounting seat, and an arc notch is formed at one end of the upper knife seat facing the upper swing arm.

[0013] By adopting the above technical solution, the arc notch on the upper knife seat matches the arc surface of the paper pressing roller, which can avoid collision with the paper pressing roller during cutting, and can also better position the paper during cutting.

[0014] The present invention is further configured as follows: a lower pressure roller assembly corresponding to the rear paper pressing roller is provided at the lower knife mechanism, the lower pressure roller assembly includes at least one lower pressure roller mounted on the lower rocker arm, and the lower knife component includes a lower knife mounting block fixed to the lower rocker arm and a lower blade fixed on the lower knife mounting block.

[0015] By adopting the above technical solution, the structure is simple and easy to assemble and disassemble.

[0016] The present invention will be further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the present invention;

[0018] Figure 2 It is a structural schematic diagram of an embodiment of the present invention;

[0019] Figure 3 for Figure 2 An enlarged schematic diagram of part I;

[0020] Figure 4 It is an exploded schematic diagram of the upper knife mechanism in an embodiment of the present invention;

[0021] Figure 5 It is a partial exploded schematic diagram of the upper knife mechanism in an embodiment of the present invention. DETAILED DESCRIPTION

[0022] like Figure 1 — Figure 5The adjustable cutting device of a winding device shown in the figure comprises an upper knife mechanism 1, a lower knife mechanism 2 corresponding to the upper knife mechanism 1, and a paper pressing mechanism 3 located at the upper knife mechanism 1, a pre-cutting station 4 is provided between the upper knife mechanism 1 and the lower knife mechanism 2, the upper knife mechanism 1 comprises an upper swing arm 11, an upper knife component 12 linked to the upper swing arm 11, and a first driving source 13 driving the upper swing arm 11 to swing toward the pre-cutting station 4; the lower knife mechanism 2 comprises a lower swing arm 21, a lower knife component 22 linked to the lower swing arm 21, and a second driving source 23 driving the lower swing arm 21 to swing toward the pre-cutting station 4. The upper knife mechanism 1 comprises two symmetrically arranged adjustment wall panels 5, the two adjustment wall panels 5 are connected by a cutter drive shaft 51 which is rotatable and can cause the two adjustment wall panels 5 to swing toward the pre-cutting station 4, and the cutter drive shaft 51 is driven by a cylinder or a motor. The paper pressing mechanism 3 includes a front paper pressing roller 31 and a rear paper pressing roller assembly 32 of the cutter, which are respectively located on the lateral sides of the upper knife component 12. The front paper pressing roller 31 of the front cutter is installed at the front of the two adjustment wall panels 5. The rear paper pressing roller assembly 32 of the cutter includes a rear paper pressing roller 321, a pressure roller swing arm 322 which is linked with the rear paper pressing roller 321 and can cause the rear paper pressing roller 321 to swing toward the pre-cutting station 4, and a third driving source 323 for driving the pressure roller swing arm 322. The third driving source 323 is preferably a cylinder, and can also be a motor. The lower knife mechanism 2 is provided with a lower pressure roller assembly 24 corresponding to the rear paper pressing roller 321, and the lower pressure roller assembly 24 includes at least one lower pressure roller mounted on the lower rocker arm 21, and the lower knife component 22 includes a lower knife mounting block 221 fixed to the lower rocker arm 21 and a lower blade 222 fixed on the lower knife mounting block 221; the first driving source 13 and the second driving source 23 are preferably cylinders, and of course, they can also be motors; during the cutting process, the motor or cylinder drives the cutter drive shaft 51, prompting the two adjustment wall panels 5 to swing synchronously toward the pre-cutting station 4, and the two adjustment wall panels 5 are The front paper pressing roller 31 of the cutter contacts the paper (i.e., the front part of the part to be cut) entering the winding device. At the same time, the rear paper pressing roller 321 in the rear paper pressing roller assembly 32 of the cutter is driven by the third driving source 323 to contact one side of the upper knife mechanism 1 with the paper (i.e., the rear part of the part to be cut). Then the second driving source 23 drives the upper swing arm 11, and the upper swing arm 11 links the upper knife component 12 to move toward the pre-cutting station 4. At this time, the lower knife component 2 will also move toward the pre-cutting station 4, and then the upper knife component 12 and the lower knife component 22 combine to cut the paper.

[0023] When the thickness of the winding is inconsistent, in order to facilitate the adjustment of the cutting angle and cutting distance. In the embodiment of the present invention, the two adjustment wall panels 5 are symmetrically provided with arc-shaped angle adjustment slots 52, and an adjustment shaft 53 is provided between the two adjustment wall panels 5. The axial ends of the adjustment shaft 53 are respectively provided with adjustment members 54 that can slide back and forth in the angle adjustment slot 52. The adjustment member 54 can be a slider and a locking block that can lock the sliding. When the slider needs to drive the adjustment shaft 53 to move in the angle adjustment slot 52, the locking block can unlock the slider, otherwise, the slider is locked, which can effectively prevent the slider from moving in the angle adjustment slot 52 when the angle does not need to be adjusted.

[0024] The upper knife mechanism 1 and the rear paper pressing roller assembly 32 of the cutter are respectively connected to the adjustment shaft 53 through a linkage, and a stroke adjustment mechanism 6 for adjusting the driving distance of the first driving source 13 and the third driving source 23 toward the pre-cutting station 4 is provided between the two adjustment wall panels 5. In the above scheme, the upper knife mechanism 1 and the paper pressing mechanism 3 are respectively connected to the adjustment shaft 53 mounted on the two adjustment wall panels 5 through a linkage, that is, the upper knife mechanism 1 and the paper pressing mechanism 3 are integrated between the two adjustment wall panels 5. At the same time, an arc-shaped angle adjustment slot 52 is provided on the two adjustment wall panels 5, and the axial ends of the adjustment shaft 53 are installed in the arc-shaped angle adjustment slot 52 through an adjustment member 54 and can slide back and forth in the arc-shaped angle adjustment slot 52. When the size (thickness) of the roll to be wound up by the winding device is inconsistent, the cutting angles will inevitably be different. Therefore, the position of the adjusting shaft 53 in the arc-shaped angle adjustment slot 52 can be adjusted, so that the cutting and paper pressing angles of the upper knife mechanism 1 and the paper pressing mechanism 3 can be changed; at this time, due to the inconsistent thickness of the roll, the spacing during cutting will also change, so when adjusting the cutting and paper pressing angles, the driving strokes of the first driving source 13 and the third driving source 23 need to be adjusted through the stroke adjustment mechanism 6. The above method is not only convenient to adjust, but also has a simple adjustment structure and does not require complicated operation procedures. It can realize the cutting of rolls of different thicknesses by the cutting device, thereby reducing the production cost caused by complicated operation procedures in the prior art. In addition, the shortening of the adjustment time can also indirectly improve the processing efficiency of the winding equipment.

[0025] In the embodiment of the present invention, the linkage member includes two symmetrical upper knife fixing plates 7 arranged between the two adjustment wall panels 5, one end of the two upper knife fixing plates 7 is hinged to the adjustment shaft 53, and the other end is connected through the upper knife rotating shaft 8, the upper swing arm 11 includes a mounting portion 111 for mounting the upper knife component 1, a hinged portion 112 hinged to the upper knife rotating shaft 8, and a driving portion 113 located between the mounting portion 111 and the hinged portion 112 for driving the first driving source 13; the pressure roller swing arm 322 includes a rear paper pressing portion 111 for the rear paper pressing portion 112. The roller 321 is mounted with a mounting end 3221, a hinged end 3222 hinged with the upper knife rotating shaft 8, and a driving end 3223 located between the mounting end 3221 and the hinged end 3222 for driving by the third driving source 323; a driving source mounting frame 9 is provided between the two upper knife fixing plates 7, one end of the driving source mounting frame 9 is hinged with the adjustment shaft 53, and the other end is connected with the upper knife fixing plate 7 through the stroke adjustment mechanism 6, and the first driving source 13 and the third driving source 323 are respectively fixed on the driving source mounting frame 9. The rear paper pressing roller 321 in the upper knife mechanism 1 and the paper pressing mechanism 3 and the driving source mounting frame 9 for installing the first driving source 13 and the third driving source 323 are respectively hinged on the same upper knife rotating shaft 8, so that the fulcrums of the three are the same when they swing, which not only makes the disassembly and assembly of the three more convenient, but also makes the linkage between them more stable.

[0026] In the further description of the embodiment of the present invention, the stroke adjustment mechanism 6 includes a connecting rod 61 fixed between the two upper knife fixing plates 7, an adjusting connecting rod 62 connected to the connecting rod 61 and the driving source mounting frame 9 respectively, and a locking block 63 that can lock the adjusting connecting rod 62. The distance between the driving source mounting frame 9 and the upper connecting rod 61 on the upper knife fixing plate 7 can be adjusted by adjusting the connecting rod 62, so as to adjust the driving stroke of the first driving source 13 and the second driving source 323 on the driving source mounting frame 9, so as to meet the upper knife mechanism 1 for cutting paper with different thicknesses and spacings. Of course, it should be noted that it is also feasible to replace the adjusting connecting rod 62 with an adjusting screw and replace the locking block 63 with an adjusting nut. With reference to the embodiment of the present invention, such a change can be achieved without any creative labor.

[0027] The upper blade component 12 of the embodiment of the present invention includes an upper blade mounting seat 121 fixed to the upper swing arm 11 and an upper blade 122 fixed to the upper blade mounting seat 121. The upper blade seat 121 is provided with an arc notch 1211 at one end facing the upper swing arm 11. The arc notch 121 matches the arc surface of the paper pressing roller, which can avoid collision with the paper pressing roller during cutting and can better position the paper during cutting.

Claims

1. An adjustable cutting device for a winding device, comprising an upper knife mechanism, a lower knife mechanism corresponding to the upper knife mechanism, and a paper pressing mechanism located at the upper knife mechanism, a pre-cutting station is provided between the upper knife mechanism and the lower knife mechanism, the upper knife mechanism comprising an upper swing arm, an upper knife component linked to the upper swing arm, and a first driving source driving the upper swing arm to swing toward the pre-cutting station; the lower knife mechanism comprising a lower swing arm, a lower knife component linked to the lower swing arm, and a second driving source driving the lower swing arm to swing toward the pre-cutting station; characterized in that: The upper knife mechanism is provided with adjusting wall panels symmetrically arranged in pairs, and the two adjusting wall panels are connected by a cutter driving shaft that can rotate and can cause the two adjusting wall panels to swing toward the pre-cutting station. The paper pressing mechanism includes a front paper pressing roller of the cutter and a rear paper pressing roller assembly of the cutter, which are respectively located on the lateral sides of the upper knife component. The front paper pressing roller of the cutter is installed at the front of the two adjusting wall panels, and the rear paper pressing roller assembly of the cutter includes a rear paper pressing roller, a roller swing arm that is linked with the rear paper pressing roller and can cause the rear paper pressing roller to swing toward the pre-cutting station, and a third driving source for driving the roller swing arm; the two adjusting wall panels are respectively connected to The invention discloses a method for adjusting the cutting tool by using a plurality of adjusting means, wherein the plurality of adjusting means are provided with an arc-shaped angle adjustment slot, an adjustment shaft is provided between the two adjustment wall panels, and adjustment parts that can slide back and forth in the angle adjustment slot are provided at the axial ends of the adjustment shaft, respectively. The upper knife mechanism and the rear paper pressing roller assembly of the cutter are connected to the adjustment shaft through linkage parts, respectively. A stroke adjustment mechanism for adjusting the driving distance of the first driving source and the third driving source toward the pre-cutting station is provided between the two adjustment wall panels; the linkage parts include upper knife fixing plates that are symmetrical in pairs and are arranged between the two adjustment wall panels, one end of the two upper knife fixing plates is hinged to the adjustment shaft, and the other end is connected through the upper knife rotating shaft, and the upper swing arm includes a space for the upper knife component to be installed. The invention relates to a mounting portion for mounting, a hinged portion hinged to the upper knife rotating shaft, and a driving portion located between the mounting portion and the hinged portion for driving by the first driving source; the pressure roller swing arm includes a mounting end for mounting the rear paper pressing roller, a hinged end hinged to the upper knife rotating shaft, and a driving end located between the mounting end and the hinged end for driving by the third driving source; a driving source mounting frame is provided between the two upper knife fixing plates, one end of the driving source mounting frame is hinged to the adjusting shaft, and the other end is connected to the upper knife fixing plate through a stroke adjusting mechanism, and the first driving source and the third driving source are respectively fixed on the driving source mounting frame; the stroke adjusting mechanism includes a fixed portion provided on the two upper knife fixing plates. A connecting rod between the plates, an adjusting connecting rod connected to the connecting rod and the driving source mounting frame respectively, and a locking block that can lock the adjusting connecting rod, the adjusting connecting rod is an adjusting screw, and the locking block is an adjusting nut; the upper knife component includes an upper knife mounting seat fixed to the upper swing arm and an upper blade fixed to the upper knife mounting seat, and an arc notch is opened on one end of the upper knife mounting seat facing the upper swing arm; the lower knife mechanism is provided with a lower pressure roller assembly corresponding to the rear paper pressing roller, and the lower pressure roller assembly includes at least one lower pressure roller mounted on the lower rocker arm, and the lower knife component includes a lower knife mounting block fixed to the lower rocker arm and a lower blade fixed on the lower knife mounting block.

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