Slitting and stacking apparatus and use thereof

Abstract

The application discloses a slitting and stacking device which sequentially comprises a slitting machine, a conveying device and a stacking device along a conveying direction, wherein the stacking device comprises a bearing table and a flattening device, the flattening device comprises first and second stop blocks, the first stop blocks are located on both sides of the bearing table along the conveying direction, and the second stop block is located on the side of the bearing table which is away from the conveying device and perpendicular to the conveying direction; the conveying device sequentially comprises a belt conveyor and a transition device along the conveying direction, wherein a backing plate is arranged below the belt conveyor, and the upper top surface of the backing plate is attached to the lower bottom surface of the non-bearing surface of the conveying belt of the belt conveyor; the transition device comprises one or more rollers, and the axial direction of the rollers is perpendicular to the conveying direction. The application can automatically stack the sheet materials in the bearing table in an orderly manner, reduce the labor intensity of the work station, improve the operation efficiency and safety factor of the work station, and avoid the delay of the next process.

Description

Technical Field

[0001] This invention relates to a slitting and stacking device and its application. Background Technology

[0002] A slitting machine is a pre-press and post-press equipment that cuts a large roll of paper, film, non-woven fabric, aluminum foil, mica tape, prepreg, and other thin materials into smaller rolls of different widths. It is commonly used in the papermaking machinery, printing and packaging machinery, and PCB industries.

[0003] In the copper clad laminate industry, the slitting machine is a crucial component. It eliminates the need for the winding process and allows for direct cutting, significantly reducing production time and improving efficiency. The slitting machine is equipped with a conveying device and a stacking device. The conveying device transports the slitting material, cut to a certain length, to the stacking device, where the sheets are stacked one by one. However, existing stacking devices used with slitting machines also have many drawbacks, specifically: 1. Due to the significant fluctuations in the conveyor belt during operation, the friction between the sheet material and the conveyor belt is insufficient, often preventing the sheet material from being properly conveyed. An operator must be constantly present beside the stacking device to sort and organize the sheet material. 2. Existing stacking devices have blocks on one side along the conveying direction and on the side perpendicular to the conveying direction away from the conveying device to restrict the movement of the sheet material. However, operators must move their workstations to erect these blocks. 3. Compared to other high-speed machinery, the slitting machine operates at a relatively low speed, but it is slightly faster for the operator. Operators often cannot keep up with the cutting speed of the slitting machine, making it difficult to stack the cut sheet material neatly. The repetitive nature of the work also increases the risk of operator fatigue. 4. The hydraulic table cannot operate automatically, requiring manual height adjustment by the operator, further complicating the stacking of the sheet material. However, if the sheet material is not stacked neatly, it will delay its entry into the next process, significantly reducing production efficiency. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defect that the existing slitting and stacking device cannot stack the slitting sheet material neatly on the support platform, and to provide a slitting and stacking device that can automatically stack the sheet material neatly on the support platform, reduce the labor intensity of the work station, improve the efficiency and safety of the work section, and at the same time avoid delays in the next process.

[0005] The present invention solves the above-mentioned technical problems through the following technical solutions:

[0006] This invention provides a slitting and stacking device, which includes a slitting machine, a conveying device, and a stacking device in sequence along the conveying direction. The stacking device includes a support platform and an alignment device. The alignment device includes a first stop and a second stop. The first stop is located on both sides of the support platform along the conveying direction, and the second stop is located on the side of the support platform perpendicular to the conveying direction and away from the conveying device. The conveying device includes a belt conveyor and a transition device in sequence along the conveying direction. A pad is provided below the belt conveyor, and the upper top surface of the pad is in contact with the lower bottom surface of the non-load-bearing surface of the conveyor belt. The transition device includes one or more rollers, the axial direction of which is perpendicular to the conveying direction.

[0007] In this invention, the leveling device is used to restrict the movement of the sheet material on the support platform to ensure that it is stacked neatly. Preferably, the leveling device further includes a telescopic mechanism connected to the first stop. The telescopic mechanism is preferably a cylinder. After the telescopic mechanism is activated, it moves the first stop away from the sheet material and then moves closer to it, repeating this process to achieve better stacking neatness.

[0008] In this invention, preferably, the aligning device is further provided with a handle for adjusting the minimum distance between the first stops. When the width of the sheet material changes, the handle can adjust the minimum distance between the first stops, thereby further improving the adaptability of the stacking device.

[0009] In this invention, the first stop block and / or the second stop block are preferably steel plates, and more preferably stainless steel plates. The thickness of the first stop block and / or the second stop block is preferably 3 mm.

[0010] In this invention, preferably, the stacking device is further provided with a PLC controller, a positioning device and / or a counter.

[0011] The positioning device, in conjunction with the PLC controller, controls the height of the support platform. Preferably, the positioning device ensures that the height of the sheet material on the support platform is no higher than the horizontal height of the conveyor belt. More preferably, the positioning device maintains the height of the sheet material on the support platform at approximately the same level as the conveyor belt. The positioning device preferably includes a photoelectric switch, the difference between its high and low positions being adjusted according to the thickness of the sheet material. The difference between the high and low positions of the photoelectric switch is preferably equal to the thickness of one sheet of the sheet material, for example, 2 cm. When the height of the sheet material on the support platform reaches or exceeds the high position of the photoelectric switch, the PLC controller controls the support platform to descend, causing the height of the sheet material on the support platform to reach or fall below the low position of the photoelectric switch.

[0012] The counter is preferably located below the support platform and is used to record the number of sheet materials. The counter can also cooperate with the PLC controller to control the activation of the telescopic mechanism. When the counter reaches a base number set according to the material and thickness of the sheet material, the PLC controller activates the telescopic mechanism; the base number is, for example, 10.

[0013] The PLC controller can also control the telescopic distance of the telescopic mechanism. The telescopic distance refers to the distance that the telescopic mechanism needs to move to move the first stop from its minimum distance to its maximum distance.

[0014] In this invention, preferably, the support platform is a hydraulic platform, such as a hydraulic platform.

[0015] In this invention, the pad is preferably made of galvanized steel, and more preferably of stainless steel. The thickness of the pad is preferably 1 mm. Adding a pad under the conveyor belt can reduce the fluctuation amplitude of the conveyor belt and control its fluctuation within a manageable range.

[0016] In this invention, the upper end of the roller is preferably flush with the top surface of the bearing surface of the conveyor belt. Thus, the roller can horizontally receive sheet material conveyed by the belt conveyor.

[0017] In this invention, when the transition device includes multiple rollers, preferably, the rollers are distributed at equal intervals.

[0018] In this invention, the width of the roller is preferably equal to the width of the conveyor belt. The width of the roller refers to its axial width, and when the transition device includes multiple rollers, the width of the rollers refers to the total width of all rollers plus the spacing between them.

[0019] In this invention, preferably, the conveying device further includes an air jetting device located below the transition device. The air jetting device propels the sheet material through the transition device, ensuring its smooth arrival at the subsequent device, while simultaneously reducing friction between the sheet material and the subsequent device, thus preventing scratches and adhesive residue.

[0020] In this invention, the slitting machine is a slitting machine conventionally used in the art.

[0021] The present invention also provides an application of the slitting and stacking apparatus in slitting and stacking sheet materials. The sheet material may be a conventional sheet material in the art, preferably one or more of paper, film, nonwoven fabric, aluminum foil, mica tape, and prepreg.

[0022] The positive and progressive effects of this invention are as follows: This invention provides a slitting and stacking device. Compared with existing slitting and stacking devices, the slitting and stacking device of this invention has a leveling device in the stacking unit, especially using a cylinder for leveling operations, which can achieve neat stacking of sheet materials; a pad is added under the conveyor belt in the conveying device to reduce conveyor belt fluctuations; by setting a transition device and further adding an air jet device as an auxiliary, the vacuum zone in the conveying process is filled, so that the sheet materials have sufficient conveying force during the conveying process. Furthermore, by setting a positioning device, a counter, a PLC controller, etc., automatic control of the lifting of the support platform and the start of the leveling device in the stacking device is realized. The slitting and stacking device of this invention is used for slitting and stacking sheet materials. It is easy to use, can reduce the labor intensity of the workstation, improve the efficiency of the section operation, improve the safety factor, and avoid delays in the next process. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the slitting and stacking device according to Embodiment 1 of the present invention;

[0024] Figure 2 for Figure 1 A top view of the stacking device shown;

[0025] Figure 3 This is a schematic diagram of a cutting and stacking device in the prior art.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Slitting machine;

[0028] 2 Conveying device, 21 Belt conveyor, 211 Conveyor belt, 22 Transition device, 221 Roller, 23 Pad, 24 Air jet device;

[0029] 3 Stacking device, 31 Support platform, 32 Alignment device, 321 First stop, 322 Second stop, 323 Telescopic mechanism, 324 Handle, 33 PLC controller, 34 Positioning device, 341 Photoelectric switch (high position), 342 Photoelectric switch (low position), 35 Counter. Detailed Implementation

[0030] The present invention is further illustrated below by way of embodiments, but the invention is not limited to the scope of the embodiments described herein. Experimental methods in the following embodiments that do not specify specific conditions were performed according to conventional methods and conditions, or as selected according to the product instructions.

[0031] Example 1

[0032] like Figure 1 The slitting and stacking device shown includes, in sequence along the conveying direction: a slitting machine 1, a conveying device 2, and a stacking device 3, wherein:

[0033] The conveying device 2 includes a belt conveyor 21 and a transition device 22 along the conveying direction. A pad 23 is provided below the belt conveyor 21, with its upper top surface in contact with the lower bottom surface of the non-load-bearing surface of the conveyor belt 211. The pad 23 is made of stainless steel and has a thickness of 1 mm. The conveyor belt 211 has a width of 20 cm. The transition device 22 includes two rollers 221, whose axial direction is perpendicular to the conveying direction, and whose upper ends are flush with the upper top surface of the load-bearing surface of the conveyor belt 211. Each roller 221 has a width of 9 cm, and the distance between the two rollers is 2 cm. An air jet device 24 is provided below the transition device 22.

[0034] The stacking device 3 includes: a support platform 31, a leveling device 32, a PLC controller 33, a positioning device 34, and a counter 35. The support platform 31 is a hydraulic platform. The leveling device 32 includes a first stop 321 and a second stop 322. The first stop 321 is located on both sides of the support platform 31 along the conveying direction. The first stop 321 is connected to a telescopic mechanism 323 and is provided with a handle 324. The second stop 322 is located on the side of the support platform 31 that is perpendicular to the conveying direction and away from the conveying device. The telescopic mechanism 323 is a cylinder. The first stop 321 and the second stop 322 are made of 3mm thick stainless steel plates. The positioning device 34 includes a photoelectric switch (high position) 341 and a photoelectric switch (low position) 342, with a difference of 2cm between them. Initially, the surface of the support platform 31 is flush with the photoelectric switch (low position) 342. The counter 35 is located below the support platform 31.

[0035] use Figure 1 The slitting and stacking apparatus shown performs slitting and stacking of prepreg sheets, including the following steps:

[0036] (1) Turn on the slitting and stacking device, the slitting machine enters the normal operation state, the belt conveyor rotates at a certain speed, and the jetting device sprays jets evenly; adjust the minimum distance between the first blocks to 20cm by the handle, and set the telescopic distance of the telescopic mechanism to 5cm by the PLC controller;

[0037] (2) The slitting machine cuts the semi-cured sheet into a thickness of 2cm and a width of 20cm, and the semi-cured sheet falls onto the conveyor belt of the belt conveyor.

[0038] (3) The belt conveyor transports the semi-cured sheet to the transition device, and the jetting device pushes the sheet material through the transition device to reach the support platform of the stacking device smoothly;

[0039] (4) When the semi-cured sheet delivered by the conveying device arrives at the support platform, the counter starts counting;

[0040] (5) When a prepreg is received, the height of the prepreg on the carrier platform 1 reaches the photoelectric switch (high position) 41. The PLC controller 3 controls the carrier platform 1 to drop by 2cm, so that the top surface of the prepreg on the carrier platform 1 is flush with the photoelectric switch (low position) 42.

[0041] (6) When the counter 5 counts to 10, the PLC controller starts the telescopic mechanism 23. The telescopic mechanism 23 drives the first stop block 21 to reciprocate, so that the semi-cured sheets on the carrier platform are stacked neatly.

[0042] (7) Continue to cut and stack the prepreg in this way.

[0043] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but all such changes and modifications fall within the scope of protection of the present invention.

Claims

1. A slitting and stacking apparatus characterized by, The slitting and stacking device sequentially comprises a slitting machine, a conveying device and a stacking device along a conveying direction, wherein the stacking device comprises a bearing table, a flattening device and a counter, the flattening device comprises a first stop block, a second stop block and a telescopic mechanism connected with the first stop block, the first stop block is located on both sides of the bearing table along the conveying direction, and the second stop block is located on the side of the bearing table away from the conveying device and perpendicular to the conveying direction; the conveying device sequentially comprises a belt conveyor and a transition device along the conveying direction, wherein a backing plate is arranged below the belt conveyor, and the upper top surface of the backing plate is attached to the lower bottom surface of the non-bearing surface of the conveying belt of the belt conveyor; the transition device comprises one or more rollers, the axial direction of the rollers is perpendicular to the conveying direction, the upper end of the roller is flush with the upper top surface of the bearing surface of the conveying belt, and the conveying device is provided with an air jet device, the air jet device is arranged below the transition device, the air jet device pushes the sheet material through the transition device and smoothly reaches the bearing table. The stacking device is provided with a PLC controller and a positioning device, the positioning device cooperates with the PLC controller to control the height of the bearing table, and the positioning device makes the height of the sheet material on the bearing table not higher than the horizontal height of the conveying belt. The positioning device comprises a photoelectric switch, when the height of the sheet material on the bearing table reaches or exceeds the high position of the photoelectric switch, the PLC controller controls the bearing table to descend, so that the height of the sheet material on the bearing table reaches or is lower than the low position of the photoelectric switch, and the difference between the high position and the low position of the photoelectric switch is the thickness of one sheet of the sheet material. The counter is arranged below the bearing table, when the sheet material conveyed by the conveying device reaches the bearing table, the PLC controller controls the counter to start counting. The counter cooperates with the PLC controller to control the start of the telescopic mechanism, when the counter reaches a set base number, the PLC controller starts the telescopic mechanism. After the telescopic mechanism is started, the telescopic mechanism drives the first stop block to first move away from the sheet material and then move close to the sheet material.

2. The slitting and stacking apparatus of claim 1, wherein, The telescopic mechanism is a pneumatic cylinder. The flattening device is further provided with a handle. The first stop block and / or the second stop block is a steel plate. The thickness of the first stop block and / or the second stop block is 3 mm. The bearing table is a hydraulic table.

3. The slitting stacker apparatus of claim 1, wherein, The positioning device makes the height of the sheet material on the bearing table keep substantially flush with the conveying belt.

4. The slitting and stacking apparatus of claim 3, wherein, The difference between the high position and the low position of the photoelectric switch is 2 cm. The base number is 10. The PLC controller controls the telescopic distance of the telescopic mechanism.

5. The slitting and stacking apparatus of claim 1 wherein, The backing plate is a galvanized plate or a stainless steel plate, and / or the thickness of the backing plate is 1 mm.

6. The slitting and stacking apparatus of claim 1, wherein, When the transition device comprises a plurality of rollers, the rollers are distributed at equal intervals.

7. The slitting and stacking apparatus of claim 1 wherein, The width of the roller is equal to the width of the conveying belt.

8. Use of a slitting and stacking device according to any one of claims 1 to 7 for slitting and stacking sheet material, which is one or more of paper, film, nonwoven, aluminium foil, mica tape and prepreg.

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