SU953042A1 - Apparatus for cutting a stack of webs on pattern-cutting table - Google Patents

Description

The invention relates to equipment for the light industry and is intended for use in aggregates for the automatic cutting of flooring material, mainly in the clothing industry.

Devices are known for holding the flooring of material webs when cutting by pressing the flooring to the base on which it is located, carried out by vacuum or by means of clamps made in the form of legs, rolls, tapes or combinations of these means f.

It is also known a device for cutting the flooring of fabrics on a cutting table, comprising a carriage with a knife, mounted with a moving distance along the cutting table, and pressure elements arranged symmetrically with respect to the knife associated with the individual drive 2.

The known device, when moving along the floor, causes inevitable mutual displacements of its webs, one of the reasons for which is the wave of material that is formed when the front and rear clamps move. This deficiency is aggravated by the repetition of partially cut

plots of flooring. The device does not press down the layers of the flooring directly at the cutting edge of the cutting knife, which worsens the process of cutting them.

The aim of the invention is to improve the reliability of the device.

The goal is achieved by the fact that the device for cutting the floor of the cloths on the cutting table, comprising a knife carriage mounted for movement along the cutting table, and clamping elements disposed symmetrically with respect to the knife associated with the individual drive, have additionally spring plates for decking clamps mounted to move simultaneously vertically, and each clamping element is designed as a horizontal flame, with the straps being connected to one another goy with the help of springs mounted on the carriage

25 with the ability to move vertically and horizontally and kinematically connected with an individual knife drive, while the carriage has a means for periodically lifting one

Claims (2)

30 of loaded plates. In addition, the device has a horizontal groove mounted above the table with vertical grooves and power cylinders connected to the beam and each of the spring-loaded plates has a vertical rod, the upper end of which carries the support roller and is located in the corresponding vertical axis of the horizontal beam, and also because The means for lifting one of the spring-loaded plates consists of a drive rail mounted on the carriage using a bracket and periodically contacting the support roller with a vertical rod spring loaded second plate. In addition, the horizontal bars are connected with an individual Knife drive by means of cams located between the slats, mounted on a carriage and connected to the knife drive by means of flexible rollers. The drawing shows the proposed device, a General view. It contains pressure plates whose total number determines with flooring length 2 and the required distance between them. The clamping plates are hinged on the rods x 3, which are located in the guides of the support beam 4. To press the pressure plates 1 of the flooring 2 to the base 5, serve springs b located on the rods x 3. To lift the support beam 4c, the pressure plates after cutting are power cylinders 7 and 8. Equally the weight of the pressure plates 1 in a raised state is provided by springs 9 and 10. The rollers 11, which are freely seated on the axes of 12 rods, lift and hold the lifting bars 1 in the raised position during the cutting process. at Holding and lowering in the process of cutting the pressure plates 1 carries out a means for lifting one of the plates mounted on the carriage 13 moving the cutting knife 14 along the floor. The lifting means comprises a rail 15 fixed on the lever 16, which is connected to the cylinder 17. The bracket 18 is fixed on the carriage of the GZ. To clamp the flooring directly j (the cutting edges of the knife 14 serve as clamping elements in the form of strips 1 and 20, located on both sides of the knife 14, in the horizontal grooves of the sliders 21 and 22. The sliders 21 and 22 can be mounted, fixed and fixed with the help of stoppers on vertical guides 23 and 24 fixed to the rods of cylinders 25 and 26 mounted on the carriage 13. Slats .19 and 20 of the strut and pressed against the cam 27 and 28 by springs 29 and 30. Axes of the cams 27 and 28 are located in the supports of the carriage 13. The rotation to the cams 27 and 28 is transmitted by bending the rollers 31 and 32 from the means Turning the knife mounted on the carriage 33 of its transverse movement. The reciprocating movement of the knife 14 along its cutting edge is provided by an actuator 34 mounted on the carriage 33. The device works as follows. Before starting cutting with the power cylinders 7 and 8, the support beam 4 together with the pressure plates, the plate 1 is lowered to the lower position. In this position, the plates 1 press the floor 2 to the base 5 and hold it. Depending on the height of the flooring, slides 21 and 22 are mounted on the guides 23 and 24. Sliders 21 and 22 with strips 19 and 20 are fixed. Further, to cut parts along a predetermined contour, the knife 14 receives a reciprocating motion along the blade from the actuator 34 , rotation about the axis coinciding with the cutting edge from the rotation device, as well as movement along the flooring with the carriage 13 and across with the carriage 33. The carriages 13 and 33 move and the knife 14 rotates from the respective displacement systems 1 and logged in with the system control unit (not shown). To release only the cutting zone directly, when the knife 14 is moving, for example, from left to right, it is periodically raised, held in the raised position and lowered the plates 1, which are located along its movement. The raising and lowering of the pressure plates 1 occurs at a time when the distance between the knife. 14 and the pressure plates 1 becomes smaller than a predetermined value. Llastin 1 is lifted when the start of the rail 15 goes under roller 11. In this; the moment the cylinder 17 and the lever 16 are actuated through the rail 15 and the roller 11 lifts and holds the corresponding pressure plate 1 in a raised state. The plates 1 are lowered before the end of the rail 15 leaves the roller 11. The signal to the means for raising and lowering the pressure plates comes from the movement control system of the carriage 13, which moves the knife 14 along the flooring. Synchronous with the knife 14, the rotation of the cams 27 and 28 provides, in accordance with the rotation of the knife, a constant pressing of the layers of flooring at the cutting edge of the knife. When piercing the flooring with a knife 14 at the beginning of the cutting, for when cutting corners when the flooring is stationary, the cylinders 25 and 26 lower the strips 19 and 20 and press the flooring to the base. After finishing the cutting, the support beam 4 with the pressure plates 1 rises to the upper position 7 and 8. The sliders 21 of the frame 19 and 20 are also raised and secured on the guides 23 and 24. The knife 14 is pulled out of the flooring. Then the conveyor belt receives movement (with fixed carriages) and the flooring moves to the area of the floor disassembly. The proposed device allows you to securely hold the flooring when cutting it on automated equipment, eliminate scrap and improve the quality of parts. Claim 1. Device for cutting the flooring of cloths on the cutting table, comprising a knife carriage mounted to move along the cutting table, and pressure elements arranged symmetrically with respect to the knife associated with an individual drive, characterized in that in order to increase reliability , it additionally has spring-loaded plates for clamping the flooring, mounted with the possibility of simultaneous movement along the vertical, and each pressure element is designed as a horizontal bar The lanks, the straps being connected to each other by means of a spring, are mounted on the carriage with the possibility of vertical and horizontal movement and kinematically: connected to an individual knife drive, the carriage having means for periodically lifting one of the spring plates. 2. Device POP.1, differing from the fact that it has a horizontal beam installed above the table with vertical grooves and power cylinders connected to the beam, and each of the spring-loaded plates has a vertical rod, the upper end of which has a supporting rod roller. and is located in accordance with the vertical groove of the horizontal beam. H; The device according to nn.i and 2, is characterized in that the means for lifting one of the spring-loaded plates consists of a drive rail mounted on the carriage using a bracket and periodically in contact with the support roller of a vertical rod of the spring-loaded plate. 4. The device according to claim 1, about tl and which is that the horizontal bars are connected with an individual knife drive by means of cams located between the bars mounted on the carriage and connected to the knife drive by means of flexible rollers. Sources of information taken into account in the examination. 1. The patent of Germany 1952852, cl. 8 f 8/03, 1981. 2. The patent of the Federal Republic of Germany 2065230, kl. 8 f 10/03, 1972 (prototype).