RU235488U1 - SHEET BRAKE MACHINE - Google Patents

Abstract

The utility model relates to equipment for bending and cutting metal and plastic sheets used in industry and construction. The sheet bending machine contains a stand on which C-shaped supports are located. A lower pressure bar is attached to the lower part of the C-shaped support. An upper pressure bar is connected to the lower pressure bar. A pressure stop bar is provided, attached to the lower surface of the rotary rods connected to the upper part of the C-shaped support. The C-shaped supports are made of an aluminum alloy containing, by weight: silicon (Si) 8, manganese (Mn) 0.2, magnesium (Mg) 0.17, iron (Fe) 0.9, copper (Cu) 0.2, zinc (Zn) 0.2, beryllium (Be) 0.09, nickel (Ni) 0.09, lead (Pb) 0.04, tin (Sn) 0.009. As a result, the strength and wear resistance of the C-shaped supports of the machine are increased. 3 ref., 3 fig., 2 tables.

Description

The utility model relates to machines for bending and cutting metal and plastic sheets used in industry and construction. [B21D5/00, B21D5/04, B21D5/029, B21D7/024].

A COMBINED PORTABLE SHEET BRAKE AND CUTTER is known from the prior art [US5582053, published: 10.12.1996], consisting of a base and a plurality of C-shaped rods located on the base. Each C-shaped element consists of a lower lever fixed to the base and an arm located from the bottom and above it. The first element is fixed to the lower arms of the C-shaped elements and has a longitudinally expanding clamping surface. The second element for bending the workpiece is folded back toward the first element and extends longitudinally with respect to the first element. The longitudinally retractable clamping element rotates toward the arm of the C-shaped rods. A handle element for moving the clamping element is provided on the brake. The track is longitudinally pulled on the portable sheet bending brake, and the cutter is detachably mounted on the track and moves along the track.

Also known is a SHEET BRAKE [US2002124621, published: 12.09.2002] which includes a clamping member having a lower leg extending therefrom and a pivot arm pivotable and extending from the clamping member. The pivot arm defines a clamping area with a shin. A base supports the clamping members and provides support for the assembly when moving the pivot arm between an open position and a clamped position. A guide mechanism reacts between the clamping member and the pivot arm to move the pivot arm between the open position and the clamped position. The guide mechanism has a guide slot with an opening located in the guide slot between the first and second ends for positioning the pivot arm in an intermediate position to ensure accurate alignment of the workpiece.

The closest in technical essence is the SHEET BENDING MACHINE [Ru136373, published; 13.08.2013], comprising a frame, several C-shaped elements located on said frame and spaced along it, each of which comprises a lower console fixed to said frame and an upper console spaced from it. The upper console hangs over the lower console. The machine also comprises a first element with a longitudinal support surface, attached to said lower consoles of the C-shaped elements, and a second element intended for bending the workpiece, forming a hinged joint with said first element. A longitudinal clamping element is located along the second element, attached with at least two bolts to the lower surface of the grooved rotary rods. In this case, the rotary rods are hingedly connected to the upper consoles of the C-shaped elements. The machine handle, designed to move the clamping element, is pivotally articulated with the upper consoles of all C-shaped elements.

The disadvantage of the analogues and the prototype is that the C-shaped supports wear out over time and lose their performance characteristics as a result of long-term operation of the sheet bending machine.

The purpose of a utility model is to eliminate the shortcomings of the prototype.

The technical result of the utility model is an increase in the strength and wear resistance of C-shaped supports of a sheet bending machine.

The specified technical result is achieved in that the sheet bending machine, comprising a stand on which C-shaped supports are located, which are fixed with their lower part on the stand, the lower pressure bar is attached to the lower part of the C-shaped support, the upper pressure bar is connected by a hinge joint to the lower pressure bar and is located along it, the pressure stop bar is attached to the lower surface of the rotary rods connected to the upper part of the C-shaped support, on which a locking bar with a handle is also located, the roller knife is located on the pressure stop bar, the upper pressure bar is equipped with handles, characterized in that the C-shaped supports are made of an alloy of aluminum with silicon (Si), manganese (Mn), magnesium (Mg), iron (Fe), copper (Cu), zinc (Zn), beryllium (Be), nickel (Ni), lead (Pb) and tin (Sn).

In particular, C-shaped supports have the ability to load sheet metal up to 660 mm long and up to 0.7 mm thick.

In particular, the lower, upper, thrust and locking pressure bars are made of an alloy of aluminum with silicon (Si), iron (Fe), copper (Cu), magnesium (Mg), manganese (Mn), titanium (Ti), zinc (Zn) and chromium (Cr).

In particular, the hydrogen content in the melt is no more than 0.2 ^cm3 per 100 g.

In particular, horizontal handles are installed on both sides.

Brief description of the drawings.

Fig. 1 shows the front view of the sheet bending machine.

Fig. 2 shows a side view of a sheet bending machine.

Fig. 3 shows a top view of the sheet bending machine.

The following is indicated on the figures: 1 - stand, 2 - C-shaped support, 3 - lower pressure bar, 4 - upper pressure bar, 5 - pressure stop bar, 6 - rotary rod, 7 - locking bar, 8 - handle from the locking bar, 9 - roller knife, 10 - handle from the upper pressure bar, 11 - horizontal handle.

A sheet bending machine comprising a stand 1 on which C-shaped supports 2 are arranged, which are secured with their lower part on the stand, a lower pressure bar 3 is attached to the lower part of the C-shaped support 2, an upper pressure bar 4 is connected by a hinge joint to the lower pressure bar 3 and is located along it, a pressure stop bar 5 is attached to the lower surface of rotary rods 6, connected to the upper part of the C-shaped support, on which a locking bar 7 with a handle 8 is also located, a roller knife 9 is located on the pressure stop bar 5, the upper pressure bar 4 is provided with handles 10, horizontal handles 11 are installed on both sides.

Implementation of a utility model.

A sheet metal blank up to 660 mm in size and up to 0.7 mm in thickness is inserted into C-shaped supports 2 and fixed using a locking bar 7 between the pressure stop bar 5 and the lower pressure bar 3, and the upper pressure bar 4 is moved by turning until the contact section of the upper pressure bar 4 comes into contact with the sheet metal blank, using handles 10.

The freely rotating cutting rollers of the roller knife 9 are installed taking into account the generally accepted principles of roller cutting in such a way that when the roller knife 9 moves along the machine, the workpiece is cut or cut off. An alloy of aluminum with silicon (Si), manganese (Mn), magnesium (Mg), iron (Fe), copper (Cu), zinc (Zn), beryllium (Be), nickel (Ni), lead (Pb) and tin (Sn) is used as the material for making the C-shaped supports.

This alloy increases the strength and wear resistance of the C-shaped supports of the sheet bending machine.

The material used to make the lower, upper, stop and fixing pressure bars is an alloy of aluminum with silicon (Si), iron (Fe), copper (Cu), magnesium (Mg), manganese (Mn), titanium (Ti), zinc (Zn) and chromium (Cr),

the hydrogen content in the melt is no more than 0.2 ^cm3 per 100 g.

On both sides of the sheet bending machine, horizontal handles are installed, 11 thanks to which it is possible, if necessary, to safely move the sheet bending machine to the required location before starting or after completing work on it.

Claims (4)

1. A sheet bending machine comprising a column on which C-shaped supports are arranged, which are secured with their lower part to the column, a lower pressure bar attached to the lower part of the C-shaped support, an upper pressure bar made with handles, connected by a hinge joint to the lower pressure bar and located along it, a pressure stop bar attached to the lower surface of rotary rods connected to the upper part of the C-shaped support, on which a locking bar with a handle is located, characterized in that the C-shaped supports are made of an aluminum alloy containing, by weight %: silicon (Si) 8, manganese (Mn) 0.2, magnesium (Mg) 0.17, iron (Fe) 0.9, copper (Cu) 0.2, zinc (Zn) 0.2, beryllium (Be) 0.09, nickel (Ni) 0.09, lead (Pb) 0.04, tin (Sn) 0.009. 2. A sheet bending machine according to item 1, characterized in that the C-shaped supports are designed with the possibility of loading sheet metal up to 660 mm long and up to 0.7 mm thick. 3. A sheet bending machine according to item 1, characterized in that the lower, upper, stop and fixing pressure bars are made of an aluminum alloy containing silicon (Si), iron (Fe), copper (Cu), magnesium (Mg), manganese (Mn), titanium (Ti), zinc (Zn) and chromium (Cr). 4. A sheet bending machine according to item 1, characterized in that it contains horizontal handles installed on both sides.

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