SU1148740A2 - Flow line for continuous gas cutting of sheets - Google Patents

Abstract

DOWNLOAD DAY LINE NON-EXHIBITION "GAS CUTTING SHEETS ON AUTH." St. No. 903004, characterized in that, in order to improve performance and improve operating conditions by reducing the time of preparing the line for the repeated cycle and reducing the idle run of the chain, the line is equipped with an additional stop of a smaller length, also fixed on the outside of the chain and located between the stops greater length in the area of the main stops smaller length.

Description

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Figure 1 of the Invention. It relates to gas cutting of flat products and can be used when cutting sheet metal in the preparation shops of the assembly and welding industry, According to the main author. No. 903004 is a known production line for continuous gas cutting of sheets containing a rail track with gas cutting machines moving along it and a lifting device for setting cutting tables, made in the form of a system of levers and a base, and a chain for moving the cutting tables along the guide, levers the support-lifting devices, at their ends alone, are mounted on a base, are arranged in two rows on either side of the longitudinal axis of the line, and their other ends are pivotally connected to the beam, the cutting table is set on brackets are attached to the ends of each cutting table with an offset relative to the longitudinal axis, while on the arm side of the chain for moving the cutting table there are fasteners of different lengths, with two smaller poles between two longer poles, and the difference between The lengths of these stops are equal to the distance between the arms of the cutting table, and the length of the chain for moving the cutting tables is shorter than the length of the guide by the value of two lengths of the cutting table. uu is the presence of large runs idle circuit, which has a significant effect on its performance at high intensity of the line. Estimating the total idle runs when replacing cutting tables from zones C and III, we obtain a value equal to 5.1 conveyor lengths. The purpose of the invention is to increase productivity and improve operating conditions by reducing the time to prepare the line for the recycle and reduce the idle run of the chain. The goal is achieved by the fact that a continuous line for continuous gas cutting of sheets, containing a rail track with gas carriages moving along it, and an axial lifting device for setting cutting tables, is made in the system of levers and a base for moving the cutting table Aligning along the guide, the arms of the legs of the lifting device, with their ends alone, are mounted on the base, placed in two rows along both lines from the longitudinal axis of the line and the other ends are articulated The table is mounted on the beam, and at the ends of each cutting table with an offset relative to the longitudinal axis brackets are attached, while on the outside of the chain to move the cutting table are fixed lugs of different lengths, with two lugs of smaller length between two lugs of greater length between the lengths of these stops is equal to the distance between the arms of the cutting table, and the length of the chain for moving the cutting tables is shorter than the length of the guideline by the amount of two lengths of the cutting table; With an effective stop of a smaller length, also fixed on the outside of the chain and located between the stops of a greater length on the side of the arrangement of the main stops of a smaller length. Figure 1 shows schematically the proposed flow line; figure 2 is the same, top view; in Fig. Zrazre A-A in Fig. 1; in Fig.4, node 1 in Fig.1; figure 5 - node I in figure 1; FIG. 6b shows the sequence of replacing the cutting tables from zone II (thin lines, tables shown, lifted by supporting and lifting devices, and main lines are tables on rails); 7, the sequence of Damage of the cutting tables from the Shch. Zone. The production line contains rail track 1 for gas cutting machines 2, lift-up device 3, cutting tables 4 with sheet 5, rail track b for moving the cutting table 4 using an endless chain 7, magnetic sheet sorter 8, magnetic sorter 9, placed respectively in the loading zone T and unloading IV and restrictive stops 10. On the base 11, two parallel rows of levers 12 are mounted on the axis 13, hinged to a rigid beam 14, on which ivaets cutting table 4 with a sheet. The hydraulic cylinders 15 are pivotally connected to one lever 12 of each row of the support-lifting device 3 by means of axles 16. The rail track / b is mounted along the entire length of the line and the cutting tables 4 move along the rollers 17. The drive for moving the cutting tables 4 is an endless chain 7, the drive sprocket 18, the non-drive sprocket 19 and the electric drive 20. For the orientation of the cutting table 4 during movement, the rollers 17 are made with flanges. On each cutting table 4 from the ends, the brackets 21 and 22 are fastened, displaced from its longitudinal axis forwards and to the left. The endless chain of 7 provides the stops with different lengths. In this case, the stops are located on the outer sides of the chain, and between two stops 23 and 24 of greater length there are stops 25 and 26, an additional stop 27, the length of which is shorter than the first by an offset value of the same-sided crowns of mattes 21 and 22. The flow line works as follows. To set it up initially, the endless chain 7 is set to a position in which ynog of greater length 23 is in zone 1 in the extreme position. In this position, the flail 7 is mounted on the rail track 6 of the cutting table 4 so that the stop of greater length 23 is located inside the cutting table behind the bracket 21. The stop of shorter length 25 on the endless chain 7 is fixed in the position at which it will be, when lowered rail track in zone I of the cutting table 4, to be found outside the table behind the crown matte 22, and a stop of shorter length 26 inside the table in front of the bracket 22 so that the distance between the stops 23 and 26 is equal to the distance between zones U and iV. An additional stop of shorter length 27 on the endless chain 7 is fixed in a position where it will be in zone I with the cutting table 4 lowered and be inside the cutting table between the brackets 21 and 22. The stop of greater length 24 on the endless chain 7 is fixed in zone 1 . . On the cutting table 4 in zone 1, the magnetic stacker 8 serves the sheet. Table 4, together with the sheet, along rail track 6, with the stop 23 of the endless chain 7 is sent under any gas cutting machine. A command from the control panel turns on the support-lifting device. The rod of the hydraulic cylinder 15, retracted, turns around the axes 13 the levers 12 with the rigid beam 14, thereby raising the cutting table with the sheet under the gas-cutting machine. Similarly, the SI loads the second and all subsequent goreorezhuschie machines. The cutting process is continuous, since the difference in height between the plow through the lower points of the rollers 17 of the cutting table and the rail track 6 ensures that other cutting tables pass under the tables raised under the cutting machines of the gas cutting machines 2. After the cutting process ends from the gas-cutting maoiin 2 located in zone D or I, the cutting table 4 with the sheet 5 cut to the details is lowered onto the track by a command from the control panel of the support-lifting device 3 b. The actuator 20 of the endless chain 7 is turned on and the cutting table with a sheet 5 of zone 1 is moved to the zone I or T, and the cutting table 4 is cut with a sheet 5 on the part from zone P or III to zone IV. In this case, the cutting of the cutting table 4 with the sheet is carried out by the stops 23, which interact with the brackets 21 of the cutting table 4 displaced to the left from its longitudinal axis. The cutting table 4 is moved with a sheet cut into parts produced by stops 25 (when moving from the fil zone to zone IV) or by stops 26 (when moving from zone H1 to zone W), interacting with the bracket 22 of the cutting table 4, shifted to the right of it longitudinal axis. Cutting table. 4 with a sheet cut into parts, moving from zone P to zone XY with stop 25, when it reaches the cutting table 4 with a sheet of zone P stops. And after the latter is lifted, with a support-lifting device 3 into the cutting zone, it is sent with a stop 25 to zone IV. After unloading the table 4 in zone 1. On command: from the control panel, the electric drive 20 of the endless chain 7 is switched on and the free cutting table 4 is moved from zone IV to zone 1. In this case, the table moves first with an emphasis of smaller length 26 and then an emphasis of greater length 24 is sent to zone 1. Cutting table 4 with a sheet cut into parts, moving from zone W to zone IV, the abutment 26 reaches zone IV when the cutting table 4 with sheet reaches zone W. After unloading the table 4 in this zone table 7 move to zone 1 first complement There is a solid support 25, and when it is released from the engagement, it is sent to the stop 24. To prepare the production line to repeat the cycle, move the endless chain 7 to a position at which the stop of greater length 23 approaches the bracket 21 and lies between the brackets 21 and 22 of one cutting table the number of stops 25-27 is equal to the number of gas cutting machines plus one. Estimated total l; olos.ty pro,; run in units of length of the conveyor when replacing cutting tables from the zones c

D W / we get a value equal to 3, 2 of the length of the conveyor. Thus, the reduction of the replacement cycle for cutting tables with the introduction of an additional stop is (5.1-3.2) Eq, where V is the length of the conveyor.

Consequently, mounting an additional stop with a shorter length allows you to easily prepare the line for repeating the cycle and reduce its length by increasing the line capacity.

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Claims (1)

FLOW LINE FOR CONTINUOUS GAS CUTTING OF SHEETS by ed. St. No. 903004, characterized in that, in order to increase productivity and improve operating conditions by reducing the time for preparing the line for a repeated cycle and reducing idle chain runs, the line is equipped with an additional stop of a shorter length, also fixed; located on the outer side of the chain and 'located between the stops of greater length in the zone of location of the main stops of shorter length.