CN101920281B - Five-roll metal plate and strip straightening machine - Google Patents

Abstract

A five-roller metal strip straightening machine belongs to the technical field of metal strip straightening machinery, which includes a power transmission device, a straightening roller installed in a machine frame, a support roller and a pressing device. It is characterized in that the roll system structure is that two upper straightening rolls and three lower straightening rolls are arranged staggered along the rolling center line, and a diameter of straightening roll is installed at the middle position above the two upper straightening rolls. The upper support roller is 3 to 5 times the diameter of the roller. Below the middle straightening roller of the three lower straightening rollers, a lower support roller whose diameter is 3 to 5 times of the straightening roller diameter is installed. Compared with the prior art, the invention has the advantages of reasonable arrangement of the roller system, simple machine structure, and small volume and weight.

Description

Five-roll metal strip straightening machine

technical field

The invention belongs to the technical field of metal strip straightening machinery, and in particular relates to a five-roll metal strip straightening machine.

Background technique

At present, at home and abroad, metal strips are straightened by multiple rows of supporting rollers supporting straightening rollers to straighten metal strips, as shown in Figure 1 and Figure 2. The disadvantage of this structural form is that the structure is huge and complex, the equipment is large in size and heavy in weight, and the bearings of the back-up rolls are installed on the strip running line, so the working conditions are poor and easy to be damaged.

Contents of the invention

The object of the present invention is to provide a five-roll metal strip straightening machine, which can overcome the above-mentioned shortcomings in the prior art.

The present invention is realized in this way, it comprises power transmission device and is installed in the straightening roller in the frame, back-up roller and pressing down device, it is characterized in that its roller system structure is made up of two upper straightening rollers and three lower straightening rollers. The straightening rolls are arranged staggeredly along the rolling line, and an upper back-up roll which is in contact with the roll surface of the two upper straightening rolls is installed at the middle position above the two upper straightening rolls, and the diameter of the upper back-up roll is 3-5 times the diameter of the upper straightening roller, and a lower supporting roller in contact with it is installed under the middle straightening roller of the three lower straightening rollers, and the diameter of the lower supporting roller is 3-5 times the diameter of the lower straightening roller 5 times. Through the power transmission device, the upper and lower straightening rollers are driven to rotate, and the straightening production can be carried out.

Advantages and positive effects of the present invention

①The structure of the present invention, it is known from theoretical and experimental analysis that during straightening production, the two lower straightening rollers at the entrance and exit of the strip are under less stress, and backup rollers may not be installed, and the remaining three straightening rollers are in the The force is relatively large during straightening work, and the upper and lower support rollers are installed at the corresponding positions, so that the machine structure is reasonable.

2. the present invention adopts upper and lower support rolls with a larger diameter to be installed respectively. Although the support rolls have a larger diameter, the multi-row support roll device is omitted, which simplifies the equipment structure.

③In the present invention, only one backup roller is installed on the upper and lower sides, so that the bearings of the backup rollers can be installed in the archway of the frame, saving a plurality of roller boxes, and hollow backup rollers can also be used to reduce the weight of the rollers. conditions have been improved.

Detailed ways

As shown in Figure 3, it is a schematic diagram of the arrangement of the support mode of the roll system in the present invention. In the figure, 2 and 4 are the upper straightening rolls, 1, 3, and 5 are the lower straightening rolls, K-K is the rolling center line, and the upper straightening rolls 2, 4 and the lower straightening rolls 1, 3, 5 are alternately arranged along the rolling center line K-K, the diameters of the upper and lower straightening rolls are equal, and the upper support roll 7 whose diameter is 3-5 times the diameter of the straightening rolls is installed on the On the middle position (being the vertical center line of straightener) on two upper straightening rollers 2,4, its roller surface contacts with the roller surface of straightening roller 2,4. The lower backup roll 6 that diameter is 3-5 times of straightening roller diameter is installed on the following of lower straightening roller 3 (being the vertical center line of straightener), and its roll surface contacts with the roller surface of lower straightening roller 3. As shown in Figure 5, the upper straightening rollers 2, 4 and the upper support roller 7 are installed in the upper roller seat 10, and the upper roller seat 10 is equipped with a pressing device 9, and the lower straightening rollers 1, 3, 5 and the lower supporting roller Roller 6 is installed in the lower roller seat 11, and upper and lower roller seat are installed in the frame 8. As shown in Figure 4, start the motor 15 to drive the upper and lower straightening rollers to rotate through the reducer 14, the gear distribution box 13, and the universal joint shaft 12 to carry out the straightening work.

Description of drawings

Fig. 1 is a schematic diagram of the support of the roller system of the metal strip straightening machine in the prior art. (side view)

Fig. 2 is a schematic diagram of the structure of the roller system of the metal strip straightening machine in the prior art. (Front view)

Fig. 3 is a schematic diagram of the arrangement of the support mode of the roller system in the present invention.

Fig. 4 is a schematic diagram of the transmission structure of the present invention.

FIG. 5 is a side view of FIG. 4 .

In the figure: I-upper straightening roll II-lower straightening roll III-upper support roll IV-lower support roll

K-K: rolling center line

A-upper roll box B-upper backup roll set C-upper work roll

D-Lower roll box E-Lower support roll set F-Lower work roll

1, 3, 5-lower straightening roller 2, 4-upper straightening roller 6-lower support roller

7-upper support roller 8-frame 9-pressing device 10-upper roller seat

11-Lower roller seat 12-Universal joint shaft 13-Gear distribution box 14-Reducer

15-Motor

Claims (1)

1. roller strip straightener; It includes actuating unit and the smoothing roll, backing roll and the screwdown gear that are installed in the frame; The roll system structure that it is characterized in that it is to be arranged along interlocking on the rolling centerline by two upper straightening rolls (2,4) and three following smoothing rolls (1,3,5); One and two contacted upper support rods of upper straightening roll roll surface (7) are installed on the centre position on two upper straightening rolls (2,4); The diameter of top backing up roll (7) is 3-5 a times of upper straightening roll diameter; One and the contacted lower support roller of roll surface (6) are installed on the centre position below the middle smoothing roll (3) of three following smoothing rolls (1,3,5), and the diameter of lower support roller (6) is 3-5 a times of smoothing roll diameter down.

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