JPS62107822A - Method and device for adjusting automatically wedge of roll bender - Google Patents

Abstract

PURPOSE:To perform the adjusting work of a roll bender in simple operation with quick and high accuracy by giving to the lower roll the calculated pushing up quantity corresponding to the deflection of the upper and lower rolls by descending the upper roll in the necessary quantity based on a logical calculation. CONSTITUTION:A steel plate W is subjected to a rolling reduction by inputting the data 27 for the material specification and the work of the material to be worked to a computor 28 in advance and by operating by the computor 28. Thereafter the supporting roll rising quantity is calculated by operating the roll deflection by the computor 28 by measuring the rising side oil pressure P2 by the rolling reduction side oil pressure P1 of the upper roll 15, the roll deflection is operated by the computor 28 and the rising quantity of the supporting roll is calculated. This is linked to the driving of a driving motor M and a wedge 4 is slided to the inner part or by other supporting roll ascending and descending devices the lower roll is pushed up by the optimum quantity.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention provides a roll bender wedge automatic adjustment device and method for quickly and accurately performing roll bender adjustment work with simple operations. This is what we provide.

(Prior art) As shown in the block diagram of Fig. 4, the conventional adjustment work for a roll bender is based on the experience and skills of the operator, who visually confirms the opening of the product, and then turns the wedge motor M "ON" and "O".
Since the steel plate was bent using "FF" to determine the position of the support roll, it took a lot of time and the precision was poor, resulting in poor quality products and inefficient work.

(Problems to be Solved by the Invention) As described above, the present invention enables the inefficient and inaccurate roll bender adjustment work, which has been performed due to the operator's experience, to be performed quickly and with high precision through simple operations. That was what was requested.

(Means for solving the problem) In order to solve the above-mentioned problem, the present invention automatically sets the wedge position calculated by manually calculating the roll deflection and the actual pressure value on a personal computer. , which allows even amateur workers to operate easily, quickly, and accurately.

(Function of the Invention) The function of the present invention will be explained based on the block diagram shown in FIG. After that, the upper roll's lowering side hydraulic pressure P and rising side hydraulic pressure P2 are measured, and the roll deflections DTl and DT2 are measured.
is calculated by a computer, and the wedge rise amount DBI,
DB2 is calculated and linked to the drive of the drive motor M to slide the wedge inward and push up the lower roll by the optimum amount.

(Example) The present invention will be explained based on the drawings of the example of the device.
As shown in the figure, the automatic wedge adjustment device 1 for a roll bender is installed on a floor F with a slope 2.
A wedge 4.4 having slopes 2'' and 2'' corresponding to the slopes 2 and 2 on the upper surface thereof is provided on the floor F below the support roll 3 having a wedge 4 and 2 so as to be slidable left and right. Threaded rods 5, 5 attached to each outer end of wedge 4゜4
A drive gear 7.7 that meshes with a driven gear 8.8 fixed to the shaft 6.6 of the drive motor M is fixed to the end of a rotating shaft 10 extending from the shaft 9 of the drive motor M. An encoder E for measuring the amount of elevation of the wedge is attached to the protruding end 11 on the opposite side to M, and this encoder E is electrically connected to a digital display for the amount of elevation of the wedge.

On the other hand, a lower roll 12 is mounted on the upper surface of the support roll 3, and both ends of the center shaft 13 of the lower roll 12 are freely rotatably supported by bearings 14, 14 provided on the floor F. , both ends of the center shaft 16 of the upper roll 15 are placed on the floor F.
The piston 18.1 of the hydraulic cylinder 17.17 installed vertically in
Hydraulic pipes 22.23 are rotatably connected to the upper ends of rods 19. A computer 2 is connected to a hydraulic pressure sensor 25 on the lower side of the upper roll and a hydraulic pressure sensor 26 on the upper roll upward side in the measuring device 24, and inputs data 27 for material specifications and processing provided on the machine side.
8 and the drive motor M and pressure calculation device 24 are electrically connected.

In the diagram, GI is the gear knob between the upper and lower rolls (center of the roll)
, G2 is the gap between the upper and lower rolls (both ends of the steel plate), t
is the thickness of the copper plate W, DB1. DBz is the deflection of the lower roll, and the following relational expression holds true.

G1 = DT + +DB r + t G2 = DT 2 + DB 2 + t (Effect of the invention) Since the present invention has the above-described configuration, even an amateur worker can perform quick and precise adjustment with simple operation. The effect of making it possible to perform high-quality, highly efficient steel plate roll bender work is extremely significant.

[Brief explanation of drawings]

Fig. 1 is a front view of the main part of the embodiment of the present invention, Fig. 2 is a perspective view illustrating the influence of the gap between the upper and lower rolls on the product, Fig. 3 is a schematic diagram illustrating the plan of the present invention, and Fig. 4 is a schematic diagram illustrating the plan of the present invention. 5 is a block diagram of the operation of the prior art, and FIG. 5 is a block diagram of the operation of the present invention. (Explanation of symbols of main parts) 1: Wedge automatic adjustment device 2: Slope (of support roll) 2゛: Slope (of wedge) 3: Support roll 4; Wedge 5: Threaded rod 7: Drive gear 8; Drive gear 10 : Rotating shaft 11: Projecting end (of the rotating shaft) 12: Lower roll 13; Center shaft (of the lower roll) 15: Upper roll 16: Center shaft (of the upper roll)] 7: Hydraulic cylinder 18: Piston 19: Ronod 20 : Upper roll pressure lower side (of the hydraulic cylinder) 21: Upper roll rise side (of the hydraulic cylinder) 24: Pressure measurement device 25: Hydraulic pressure sensor (upper roll pressure lower side) 26: Hydraulic pressure sensor (upper roll 1 rise side) 27; Data 28: Computer D: Digital display (for wedge lifting amount) E: Encoder (for measuring wedge lifting amount) F; Floor G11 Gap between upper and lower rolls (roll center) G2
: Gap between upper and lower rolls (both ends of steel plate) Pl : Upper roll lowering side hydraulic pressure Pl 1 Upper roll rising side hydraulic pressure W: Steel plate t: fIFj, thickness (of steel plate) Fig. 4 Fig. 5 Normal bending work Procedural amendment document February 1986 2[1 3.Relationship with the person making the amendment/(νf1-) Patent applicant Showa year
Month Date Specification (correction) 1. Name of the invention A device for automatically raising and leveling support rolls of a roll bender and its method 2. Claims (11. A support roll elevating device has two wedges on the left and right, each with a slope corresponding to the slope that moves downward toward Both ends of the central axis of
A hydraulic pressure sensor for the upper roll pressure is mounted on the upper roll pressure side of the hydraulic cylinder, and a hydraulic pressure sensor for the pressure pressure of the upper roll is mounted on the upper roll pressure side of the hydraulic cylinder.
1. Attach an encoder for measuring the support roll lift having an upper roll oil pressure measuring device with an upper roll lift oil pressure sensor on the rising side and a digital display 4' at the other end of the support sleeve, An automatic lifting/lowering adjustment device for support rolls for a roll bender, which is electrically connected to a personal computer for inputting data for material specifications and processing. (2) Lower the upper roll with the plate set in the position calculated by computer based on the material specification data of the workpiece and processing data inputted in advance, and move the hydraulic cylinder upward and downward. The hydraulic pressure on the side is input to the computer via a sensor, and calculations are made using the above data to obtain the amount of lift of the lower roll based on the amount of lift of the support roll. A method for automatically adjusting the lifting and lowering of a support roll of a roll bender, characterized by driving by giving an optimum value. 3. Detailed Description of the Invention (Field of Industrial Application) The present invention is an automatic adjustment device and method for lifting and lowering support rolls of a roll bender, which aims to quickly and accurately adjust the roll bender with simple operations. It provides: (Prior art) As shown in the block diagram of Fig. 4, the conventional adjustment work for a roll bender involves visually checking the opening of the product, and then manually turning on the wedge motor M based on the operator's experience.
Since the steel plate was bent by turning the support roll OFF, it took a lot of time and the precision was poor, resulting in poor quality products and inefficient work. (Problems to be Solved by the Invention) As described above, the present invention solves the inefficient and inaccurate roll bender adjustment work that has been performed due to the operator's experience.
The purpose is to perform operations quickly and with high precision through simple operations. (Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention automatically lowers the upper roll by the required amount based on theoretical calculations, and inputs the actual pressure value when the upper roll is lowered into a personal computer. The support roll position is automatically set to give the lower roll a push-up amount commensurate with the amount of deflection of the upper and lower rolls calculated using It is. (Function of the Invention) The function of the present invention will be explained based on the block diagram shown in FIG. After that, the upper roll's lowering side hydraulic pressure PI and rising side hydraulic pressure P2 are measured, and the roll deflection DT (upper roll) and DB (lower roll) are calculated by computer, and the support roll lift amount is calculated. is linked to the drive of the drive motor M, and the wedge is slid inward, or the lower roll is pushed up by an optimum amount by some other support roll lifting/lowering device. (Example) The present invention will be explained based on the drawings of the example of the device.
As shown in the figure, the support roll automatic adjustment device 1 for a roll bender is placed on the floor F below the support roll 3, which has slopes 2, 2 inclined downward toward the center on the lower side. The slope 2.2 and the corresponding slope 2'
, 2' on the upper surface thereof are arranged so as to be slidable left and right, and the driven gear is fixed to the shaft 6.6 of threaded rods 5, 5 attached to the outer ends of the wedges 4, 4, respectively. Drive gears 7, 7 meshing with 8°8 are fixed to the end of a rotating shaft 10 extending from the shaft 9 of the drive motor M, and are supported on the protruding end 11 of the rotating shaft 10 on the opposite side to the drive motor M. An encoder E for measuring the amount of rise and fall of the roll is installed, and this encoder E is electrically connected to a digital display for the amount of rise and fall of the wedge. On the other hand, a lower roll 12 is mounted on the upper surface of the support roll 3, and both ends of the center shaft 13 of the lower roll 12 are freely rotatably supported by bearings 14, 14 provided on the floor F. , both ends of the center shaft 16 of the upper roll 15 are placed on the floor F.
The piston 18.1 of the hydraulic cylinder 17.17 installed vertically in
Hydraulic pipes 22.23 are rotatably connected to the upper ends of rods 19. A computer 2 is connected to a hydraulic pressure sensor 25 on the lower side of the upper roll and a hydraulic pressure sensor 26 on the upper roll upward side in the measuring device 24, and inputs data 27 for material specifications and processing provided on the machine side.
8 and the drive motor M and pressure measuring device 24 are electrically connected. In the figure, G is the gap between the upper and lower rolls (center of the roll),
t is the thickness of the steel plate W, DB is the deflection of the lower roll, and the following relational expression holds true. G = DT + DB + t (Effects of the Invention) The present invention has the above-described structure, so even an amateur worker can perform quick and precise adjustment with simple operations, and therefore a roll bender of high quality and highly efficient steel sheets can be achieved. The effect of being able to perform one task is extremely large. 4. Brief description of the drawings Figure 1 is a front view of the main parts of the embodiment of the present invention, Figure 2 is a perspective view illustrating the effect of the gap between the upper and lower rolls on the product (in the case without support rolls) , Fig. 3 is a schematic diagram explaining the plan of the present invention (when using support rolls), Fig. 4
5 is a block diagram of the operation of the prior art, and FIG. 5 is a block diagram of the operation of the present invention. (Explanation of symbols for main parts) ■ = Support roll automatic lift adjustment device 2: Slope (of support roll) 2゛: Slope (of wedge) 3: Support roll 4: Wedge 5: Threaded rod 7: Drive gear 8: Driven Gear 10: Rotating shaft 11: Projecting end (of the rotating shaft) 12: Lower roll 13: Center shaft (of the lower roll) 15: Upper roll 16: Center shaft (of the upper roll) 17: Hydraulic cylinder
I8: Piston 19: Rod 20: Upper roll pressure lower side (of the hydraulic cylinder) 21: Upper roll rise side (of the hydraulic cylinder) 24: Pressure measurement device 25: Hydraulic pressure sensor (upper roll pressure lower side) 26: Hydraulic pressure sensor ( Upper roll rising side) 27: Data 28:
Computer D = Digital display (wedge lifting amount) E: Encoder (wedge lifting [for 1 measurement)] F: Floor G: Gap between upper and lower rolls (at the center of the roll) Pl
: Upper roll lowering side hydraulic pressure P2 : Upper roll upward side hydraulic pressure W: Steel plate t: Plate thickness (of steel plate) Fig. 4 Fig. 5 Normal bending work

Claims (2)

[Claims] (1) Two wedges on the left and right, each with a slope corresponding to the slope that slopes downward from both ends toward the center, are attached to the bottom surface of the support base of the support roll that supports the bottom roll. Both ends of the center shaft of the upper roll are attached to the upper ends of rods of hydraulic cylinders that are vertically installed at both ends of the upper roll, and the upper roll pressure is applied to the lower side of the upper roll of the hydraulic cylinder. an encoder for measuring the amount of wedge lift, which includes an upper roll lifting oil pressure sensor on the upper roll lifting side of the hydraulic cylinder, and a digital display at the other end of the rotating shaft of the wedge lifting drive motor. and electrically connects the hydraulic pressure sensor, a drive motor for lifting and lowering the wedge, and a pressure measuring device in which a personal computer for inputting data for material specifications and processing is installed. Adjustment device. (2) Lower the upper roll with the plate set in the position calculated by the computer based on the material specification data of the workpiece and processing data inputted in advance, and move the hydraulic cylinder upward and downward. The hydraulic pressure is input to the computer via the sensor, and calculations are made using the data to give the optimum value to the wedge lifting drive motor to obtain the amount of push-up of the lower roll based on the wedge lifting amount. Features automatic wedge adjustment method for roll benders.