Tensioning device control equipment and method for metal coiled material splitting machine

Abstract

The invention relates to the technical field of metal coiled material slitting, and discloses a tension building device control device for a metal coiled material slitting machine and a control method.The tension building device control device comprises a base, a shock-proof pressure gauge is arranged at the top of the base, one end of the shock-proof pressure gauge communicates with a pressure measuring hose, and the other end of the pressure measuring hose communicates with a pressure measuring connector; an integrated block is arranged at the top of the base and located on the side away from the shock-proof pressure gauge, and a stacked one-way valve, a stacked pressure reducing valve, a stacked throttling valve and an electromagnetic reversing valve are sequentially arranged at the top of the integrated block from bottom to top. Primary pressure reduction is carried out through the stacked pressure reducing valves, secondary pressure reduction is carried out in combination with the tubular pressure reducing valve, the pressure of the tension building oil cylinder can be accurately controlled within a certain range, and therefore when the tension building device compresses felt, the situation that coiled materials such as copper coils are crushed due to too high pressure is avoided, the situation that the felt cannot be compressed due to too low pressure is avoided, and the service life of the felt is prolonged. Therefore, the stability of the slitting process and the product quality are effectively guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of metal coil slitting, and in particular to a control device and a control method for a metal coil slitting machine. Background Art

[0002] In the working process of the metal coil slitting machine, the sheet building device plays a key role. The sheet building device needs to apply appropriate pressure to the metal coil to ensure the smooth progress of the slitting process. However, the current sheet building device has some problems in practical application.

[0003] On the one hand, the existing tensioning device often cannot effectively compress the felt during actual operation. The felt plays a key buffering and protective role in the slitting of metal coils. If it is not fully compressed, the slitting accuracy and stability will be seriously affected. On the other hand, due to the elasticity of the felt itself, the tensioning device is prone to move up slowly during operation. Once the tensioning device moves up, the stability of the slitting process will be destroyed, which may cause uneven tension of the metal coil and further affect the slitting quality. This upward movement phenomenon may be because the control mechanism of the existing tensioning device is imperfect and cannot effectively overcome the elastic rebound force of the felt.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Summary of the invention

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the present invention provides a control device and a control method for a metal coil slitting machine, which has the advantages of enabling the tensioning device to press the felt, thereby solving the problem of being unable to effectively press the felt.

[0007] (II) Technical solution

[0008] In order to solve the above technical problem that the felt cannot be effectively pressed, the present invention provides the following technical solution:

[0009] A control device and control method for a web-building device for a metal coil slitting machine, comprising a base, a seismic-resistant pressure gauge is provided on the top of the base, one end of the seismic-resistant pressure gauge is connected to a pressure measuring hose, and the other end of the pressure measuring hose is connected to a pressure measuring joint, an integrated block is provided on the top of the base and on a side away from the seismic-resistant pressure gauge, a stacked one-way valve, a stacked pressure reducing valve, a stacked throttle valve, and an electromagnetic reversing valve are provided on the top of the integrated block in sequence from bottom to top, and the pressure measuring joint is connected to the stacked pressure reducing valve.

[0010] Preferably, the integrated block has a P end and a T end, the superimposed pressure reducing valve connection end is connected in series with a pressure measuring joint, a pressure measuring hose, and a seismic-resistant pressure gauge in sequence, the superimposed pressure reducing valve connection end is connected in series with a superimposed check valve, and the electromagnetic reversing valve has an SA end, a BS end, an SP end, and a TS end.

[0011] Preferably, the other connecting end of the stacked one-way valve is coupled to the oil circuit P end of the integrated block, and the connecting end of the stacked pressure reducing valve is connected in series with an electromagnetic reversing valve.

[0012] Preferably, the connecting end of the stacked pressure reducing valve is connected in series to the P end of the electromagnetic reversing valve, and the A end of the electromagnetic reversing valve is sequentially connected in series with the stacked throttle valve, the integrated block oil circuit A, and the tubular pressure reducing valve.

[0013] Preferably, one connection end of the tubular pressure reducing valve is connected to the tensioning oil cylinder, and the other connection end is connected in series with a pressure gauge switch and another seismic-resistant pressure gauge B in sequence.

[0014] Preferably, the B end of the electromagnetic reversing valve is connected in series with a superimposed throttle valve and an integrated block oil circuit B in sequence, and the connecting end of the integrated block oil circuit B is coupled to the tension building device.

[0015] Preferably, the T end of the electromagnetic reversing valve is connected in series to the T end of the oil circuit of the integrated block, the T end of the oil circuit of the integrated block is coupled to a connecting end on the superimposed pressure reducing valve, and the electromagnetic reversing valve is divided into DT area and DT area.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the present invention provides a control device and a control method for a sheet-building device for a metal coil slitting machine, which has the following beneficial effects:

[0018] 1. The present invention performs the first pressure reduction by means of a superimposed pressure reducing valve and then performs the second pressure reduction by means of a tubular pressure reducing valve, so that the pressure of the stretching cylinder can be accurately controlled within a certain range. This ensures that when the stretching device presses the felt, the copper coil and other coils will not be damaged due to excessive pressure, nor will the felt be unable to be pressed due to excessively low pressure, thereby effectively ensuring the stability of the slitting process and the product quality.

[0019] 2. The present invention uses a P-type electromagnetic reversing valve with a mid-position function when both the electromagnet DT zone 31 and the DT zone 32 lose power, so that the oil in the rodless chamber and the rod chamber of the sheet-laying cylinder are connected, and the pressure difference caused by the difference in area between the two chambers is used to overcome the elasticity of the felt, preventing the sheet-laying device from slowly moving up. This ensures that the sheet-laying device can maintain a stable position even in a non-working state, thereby improving the working reliability of the slitting machine.

[0020] 3. The present invention can control the upward and downward speeds of the oil cylinder by adjusting the superimposed throttle valve handwheel. This flexible speed control method can meet the needs of different slitting conditions, improve the adaptability and work efficiency of the metal coil slitting machine, and at the same time, it is also convenient for operators to make adjustments according to actual conditions and optimize the slitting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 It is a schematic diagram of a stacked pressure reducing valve of the present invention;

[0023] Figure 3 It is a schematic diagram of the pressure measuring joint of the present invention;

[0024] Figure 4 This is a control method diagram of the present invention.

[0025] In the figure: 1. Superimposed pressure reducing valve; 2. Superimposed check valve; 3. Pressure measuring joint; 4. Pressure measuring hose; 5. Seismic pressure gauge; 6. Manifold; 7. Manifold oil circuit A; 8. Tubular pressure reducing valve; 9. Pressure gauge switch; 10. Seismic pressure gauge B; 11. Construction cylinder; 12. Manifold oil circuit B; 13. T end; 14. Superimposed throttle valve; 15. Solenoid reversing valve; 20. Base; 31. DT area; 32. DT area; 61. P end. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes a control device and a control method for a sheet-building device for a metal coil slitting machine.

[0028] See also Figure 1-4A control device and control method for a metal coil slitting machine, comprising a base 20, a seismic-resistant pressure gauge 5 is provided on the top of the base 20, one end of the seismic-resistant pressure gauge 5 is connected to a pressure measuring hose 4, and the other end of the pressure measuring hose 4 is connected to a pressure measuring joint 3, an integrated block 6 is provided on the top of the base 20 and on the side away from the seismic-resistant pressure gauge 5, a stacked one-way valve 2, a stacked pressure reducing valve 1, a stacked throttle valve 14, and an electromagnetic reversing valve 15 are provided on the top of the integrated block 6 in sequence from bottom to top, and the pressure measuring joint 3 is connected to the stacked pressure reducing valve 1.

[0029] The integrated block 6 has a P end 61 and a T end 13, the connecting end of the stacked pressure reducing valve 1 is connected in series with a pressure measuring joint 3, a pressure measuring hose 4, and a seismic-resistant pressure gauge 5 in sequence, the connecting end of the stacked pressure reducing valve 1 is connected in series with a stacked check valve 2, and the electromagnetic reversing valve 15 has an SA end, a BS end, an SP end, and a TS end.

[0030] The other connection end of the stacked one-way valve 2 is coupled to the oil circuit P end 61 of the integrated block 6 , and the connection end of the stacked pressure reducing valve 1 is connected in series with an electromagnetic reversing valve 15 .

[0031] The connection end of the stacked pressure reducing valve 1 is connected in series to the P end of the electromagnetic reversing valve 15, and the A end of the electromagnetic reversing valve 15 is connected in series with the stacked throttle valve 14, the integrated block oil circuit A7, and the tubular pressure reducing valve 8 in sequence.

[0032] One connection end of the tubular pressure reducing valve 8 is connected to the oil cylinder 11, and the other connection end is connected in series with a pressure gauge switch 9 and another earthquake-resistant pressure gauge B10.

[0033] The B end of the electromagnetic reversing valve 15 is connected in series with the superimposed throttle valve 14 and the integrated block oil circuit B12 in sequence, and the connecting end of the integrated block oil circuit B12 is coupled to the tension building device.

[0034] The T end of the electromagnetic reversing valve 15 is connected in series to the oil circuit T end 13 of the integrated block 6 , and the oil circuit T end 13 of the integrated block 6 is coupled to a connecting end on the superimposed pressure reducing valve 1 . The electromagnetic reversing valve 15 is further divided into a DT area 31 and a DT area 32 .

[0035] The base 20 provides stable and reliable support for various components mounted thereon.

[0036] Working principle of the tensioning device: When the tensioning device is started, the pressure generating mechanism (the pressure generating mechanism here is: the tensioning cylinder 11) starts to work and generates a certain pressure. This pressure acts on the felt through the clamping component (pressure roller or pressure plate), so that friction and pressure are generated between the felt and the copper roll, so that the felt fits tightly to the surface of the copper roll, thereby protecting the copper roll. In addition, the tensioning device is a prior art and is not drawn in the figure, so it will not be elaborated on here.

[0037] The specific control method for controlling the tension building device to work is as follows:

[0038] First, the electromagnet DT area 32 is energized, and the main system oil enters the electromagnetic reversing valve 15 through the P end 61 of the manifold block 6 oil circuit, the superimposed one-way valve 2, and the superimposed pressure reducing valve 1, and then enters the rodless chamber of the construction cylinder 11 through the superimposed throttle valve 14, the manifold block oil circuit A7, and the tubular pressure reducing valve 8, pushing the cylinder downward, thereby driving the construction device downward. The rod chamber oil flows to the main return oil pipeline through the manifold block oil circuit B12, the superimposed throttle valve 14, the electromagnetic reversing valve 15, and the oil circuit T end 13 of the manifold block 6. By adjusting the handwheel of the superimposed throttle valve 14, the downward speed of the construction cylinder 11 can be controlled.

[0039] Secondly, when the tensioning device presses the felt, the oil enters the seismic pressure gauge 5 through the pressure measuring joint 3 and the pressure measuring hose 4. The seismic pressure gauge 5 is observed and the handwheel of the superimposed pressure reducing valve 1 is adjusted to reduce the pressure for the first time, so that the pressure of the tensioning cylinder 11 is controlled within a certain range. The oil enters the seismic pressure gauge B10 through the pressure gauge switch 9. The seismic pressure gauge B10 is observed and the handwheel of the tubular pressure reducing valve 8 is adjusted to reduce the pressure for the second time, so as to accurately control the pressure of the tensioning cylinder 11, so that when the DT zone 31 and DT zone 32 of the electromagnet lose power, the tensioning device can press the felt and will not move up. This pressure reducing valve is installed in front of the inlet of the rodless cavity of the tensioning cylinder 11 and as close to the tensioning cylinder 11 as possible to reduce the pressure fluctuation caused by the hydraulic pipeline.

[0040] Once again, the DT area 31 and DT area 32 of the electromagnet are both de-energized, and the electromagnetic reversing valve 15 is in the middle position. If the electromagnetic reversing valve 15 is improperly selected, the tensioning device is prone to slowly move up due to the elasticity of the felt. The electromagnetic reversing valve 15 uses the P-type middle position function to properly solve this problem. At this time, the oil in the rodless chamber and the rod chamber of the tensioning oil cylinder 11 are connected through the electromagnetic reversing valve 15. The pressures of the two chambers are equal, and the area of ​​the rodless chamber is larger than the annular area of ​​the rod chamber. Therefore, the pressure acting on the rodless chamber downward is greater than the pressure of the annular area of ​​the rod chamber upward, thereby overcoming the upward elastic force of the felt and preventing the tensioning device from slowly moving up. The superimposed one-way valve 2 can prevent the oil from flowing to the P end 61 of the oil circuit of the integrated block 6 to avoid interfering with the action of other oil circuits.

[0041] Finally, the electromagnet DT zone 31 is energized, and the main system oil passes through the oil circuit P end 61 of the integrated block 6, the superimposed one-way valve 2, the superimposed pressure reducing valve 1, and enters the electromagnetic reversing valve 15, and then passes through the superimposed throttle valve 14 and the integrated block oil circuit B12 to enter the rod chamber of the construction cylinder 11, pushing the cylinder upward, thereby driving the construction device upward. By adjusting the handwheel of the superimposed throttle valve 14, the upward speed of the construction cylinder 11 can be controlled. The rodless chamber oil passes through the one-way valve of the tubular pressure reducing valve 8, the integrated block oil circuit A7, the superimposed throttle valve 14, the electromagnetic reversing valve 15, and the oil circuit T end 13 of the integrated block 6 to the main return oil pipeline. By adjusting the handwheel of the superimposed throttle valve 14, the upward speed of the construction cylinder 11 can be controlled. At this time, the tubular pressure reducing valve 8 has no pressure reducing effect.

[0042] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A control device for a sheet-building device for a metal coil slitting machine, comprising a base (20), characterized in that: A seismic-resistant pressure gauge (5) is provided on the top of the base (20); one end of the seismic-resistant pressure gauge (5) is connected to a pressure measuring hose (4); the other end of the pressure measuring hose (4) is connected to a pressure measuring joint (3); an integrated block (6) is provided on the top of the base (20) and on a side away from the seismic-resistant pressure gauge (5); a stacked one-way valve (2), a stacked pressure reducing valve (1), a stacked throttle valve (14), and an electromagnetic reversing valve (15) are provided on the top of the integrated block (6) in order from bottom to top; the pressure measuring joint (3) is connected to the stacked pressure reducing valve (1).

2. A control method for a sheet-building device control device for a metal coil slitting machine according to claim 1, characterized in that: The integrated block (6) has a P end (61) and a T end (13); the connection end of the stacked pressure reducing valve (1) is connected in series with a pressure measuring joint (3), a pressure measuring hose (4), and a seismic-resistant pressure gauge (5); the connection end of the stacked pressure reducing valve (1) is connected in series with a stacked check valve (2); and the electromagnetic reversing valve (15) has an SA end, a BS end, an SP end, and a TS end.

3. The method for controlling a sheet-building device for a metal coil slitting machine according to claim 1, characterized in that: The other connection end of the stacked one-way valve (2) is coupled to the oil circuit P end (61) of the integrated block (6), and the connection end of the stacked pressure reducing valve (1) is connected in series with an electromagnetic reversing valve (15).

4. The method for controlling a sheet-building device for a metal coil slitting machine according to claim 1, characterized in that: The connection end of the stacked pressure reducing valve (1) is connected in series to the P end of the electromagnetic reversing valve (15), and the A end of the electromagnetic reversing valve (15) is connected in series with the stacked throttle valve (14), the integrated block oil circuit A (7), and the tubular pressure reducing valve (8).

5. The method for controlling a sheet-building device for a metal coil slitting machine according to claim 1, characterized in that: One connection end of the tubular pressure reducing valve (8) is connected to a tensioning oil cylinder (11), and the other connection end is connected in series with a pressure gauge switch (9) and another shockproof pressure gauge B (10).

6. The method for controlling a sheet-building device for a metal coil slitting machine according to claim 1, characterized in that: The B end of the electromagnetic reversing valve (15) is connected in series with a superimposed throttle valve (14) and an integrated block oil circuit B (12), and the connecting end of the integrated block oil circuit B (12) is coupled to a tension building device.

7. The method for controlling a sheet-building device for a metal coil slitting machine according to claim 1, characterized in that: The T end of the electromagnetic reversing valve (15) is connected in series to the T end (13) of the oil circuit of the integrated block (6), and the T end (13) of the oil circuit of the integrated block 6 is coupled to a connection end on the stacked pressure reducing valve (1). The electromagnetic reversing valve (15) is further divided into a DT area (31) and a DT area (32).

Images