SU1172656A1 - Shears for press to machine strip and band material - Google Patents

Abstract

SCRIPERS TO THE PRESS FOR TREATING STRIP AND BELT MATERIAL include a body and a recess located in it a reamer beam with a knife and a movable beam reel, connected by means of a pressure lever and a mechanism for cutting the cut with a working member of the press, and which is supplied with a working lever with a press lever and a mechanism for cutting the cut with a working member of the press, which is provided with creeper and press gear and a press working tool, which is supplied with a press tool and a press working tool, which is supplied with a press gear and a press working tool, which is packed with a press tool and a press pass mechanism with a press tool, which is attached to the press working body, which is packed with a press lever. in order to simplify the design and expand the technological capabilities by increasing the range of the multiplicity of the cut, the pressure lever is connected to the body by means of a lever pivotally mounted on them and made with a plane located in the plane of symmetry housing L-shaped groove, one of the parts of which is connected with the source of the working medium and forms the cavity of the power cylinder, and the cut skip mechanism is made in the form of a pressure lever located in the part of the groove connected to the source of the working medium is spring loaded (L of the plunger with the cracker and mounted in another part of the groove of the slider with the axis associated with the movable knife beam.

Description

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The invention relates to the processing of metals by pressure and can be used on press equipment in the automation of sheet metal forming presses.

The purpose of the invention is to simplify the construction and expansion of technological capabilities by increasing the range of cut frequency.

Figure 1 shows a press for processing strip and tape material with scissors placed along it during the technological process, general view; figure 2 - node 1 in figure 1; in FIG. 3, view A in FIG. 2; figure 4 is a view In fig.Z; in FIG. 3, section BB, in FIG. 3; Fig.6 section GGD fig.Z; in fig. 7 - section dD in figure 2. . .

The press-stamping press 1 for processing strip and tape material contains a mechanism of double-sided roll feed, which includes pulling 2 and pushing 3 carriages with the left and right 5 gearboxes interconnected by a shaft 6. T The lower arm and the pushing carriage are of the same design and contain the upper, movable in the vertical direction, and the lower fixed rolls. The feed mechanism can be driven either from an individual source of movement 7, or the selection of material is conducted from the eccentric shaft of the press. .

During the technological process on the press frame, after the pull-in carriage 2 of the roller feed, the bracket 8 is provided with a vertically adjustable scissors carriage 9 used to cut the waste mesh of a stamped strip or belt. The body of the scissors 9 consists of two sidewalls 10 and 11, connected between them by stitches 12 and 13 and a fixed knife beam 14 with a knife 15. In the side walls of the scissors carriage 9, the waste net and clipper 16 are also attached. On the rails 17 of the side walls 10 and The 11 carriages are positioned with a spring-loaded movable blade 18c with a knife 19 and a spring-loaded waste mesh clamp 20 installed in the movable blade beam in guide sleeves 21. The scissors drive is connected to the crank shaft 22 of the press 1 through a face plate 23 fixed on it with an eccentric slider 2 4, on which is mounted a head 25 t of gi 26, connected through a push lever 27, fixed at one end on a scissors carriage 9, with a movable knife beam 18. In the push lever 27, a L-shaped groove 28 is made, in one branch of which In the other branch of the groove, there is a harness 32, connected by an axle 33 with a movable knife blade 18. The ha 26 is made with right and left threads, which allows installation of the knife 19 in height relative to the level of waste workable material. A plunger 31, lifted by a rusk 34 fixed on its end, and a slider 32. are placed in the lever 27 with the possibility of mutually perpendicular movement. The pressure lever 27 is connected to the sidewalls 10 and 11 of the scissor carriage 9 through the swing arm 35. The guides 17 of the movable knife beam 18 are equipped with washers 36, which restrict the upward movement of the knife beam and allow the clearance S between the ram 34 of the piston to move upwards 31 and a slider 32.

The device works as follows.

The material being machined between the rollers of the transporting carriages 2 and 3, as the slider of the press 1 is being processed, is fed to the scissor carriage catcher 37, designed to cut the waste mesh.

When the crank shaft 22 of the press 1 is rotated, the movement is transferred to a stage 26, moving reciprocally, and a pressure lever 27 connected with a hard lever 27, which oscillates. The waste material being processed (not shown) enters the safety device 37 under the clamp 20 of the movable knife beam and the knife 15 of the fixed, knife beam 14. When the upper knife beam 18 is lowered with the knife 19, the waste mesh is removed, which is removed along the slide 16 into the container. The linear motion of the knife beam 18 along the guides 17 is ensured by swinging the lever 35 connecting the push lever 27 to the scissors carriage.

Depending on the length of the product required by the technological process, the scissors can be turned on for each stroke of the press ram or after several strokes of the ram with a multiple cut.

Turning on the scissors is effected by applying a signal from a control device (not shown), for example, a press controller. When a command is given to a distributor (not shown) when the pressure lever 27 is in its extreme upper position, the energy carrier enters the cavity 29 of the power cylinder of the pressure lever 27, which is filled in one of the branches of the L-shaped groove 28. Under the action of the energy carrier, the plunger 31 moves to the right 34 ( Fig. 2 into the space above the slider 32 located in the second branch of the L-shaped groove and connected axis 33 with the movable knife beam 18, and locks the slider 32 fixing it in this position. Pressing lever 27 through the crawler fixed 34 the impact on the movable knife beam 18 with the knife 19, which, moving downwards along the guides 17., cuts the waste mesh. The shears are also turned off by sending a signal to the energy distributor from the control device.The energy carrier is dropped from the cavity of the power cylinder 29 into the atmosphere, the plunger 31 is returned to its original position by the spring 30. The smooth return of the plunger 31 with the nut 34 is provided by having a gap S between the nut 34 and the slide 32 formed after stopping in the extreme vertex It tsolozhenii stroke washers 36, spring-loaded lodvizhnoy blade beam 18 and continuing upward movement lever 27. Polzushka 32 is released, the opportunities of yielding at .t lever movement szvobodno 27 move into the recess. When this spring-loaded movable knife beam 18 occupies the uppermost position of the stroke and when lowering the pressure lever 27, the cut does not occur. With the subsequent command to the energy distributor, the turn-on cycle is repeated. W. 21 23 1 22

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Claims (1)

SCISSORS TO THE PRESS FOR PROCESSING STRIP AND TAPE MATERIAL, comprising a housing and a fixed knife beam with a knife and a movable knife beam connected therein by means of a pressure lever and a cut-through mechanism with a press working member, characterized in that, in order to simplify the design and expanding technological capabilities by increasing the range of the cut ratio, the pressure lever is connected to the body by means of a lever pivotally mounted on them and is made with the body located in the plane of symmetry of the body Г -shaped groove, one of the parts of which is connected with the source of the working medium and forms the cavity of the power cylinder, and the cut-through mechanism is made in the form of a push lever placed in the groove part, connected with the S source of the working medium, a spring-loaded plunger with a cracker and installed in. the other part of the groove of the crawler with the axis associated with the movable knife beam. SU, 1172656> 1 1172656 2