SU1346305A1 - Arrangement for feeding material to the working zone - Google Patents

Abstract

The invention relates to the mechanization of pgamping works, in particular to a device for feeding material into the working area of a press. The purpose of the invention is the expansion of technological capabilities. The goal is achieved by performing a kinematic connection of a press ram with a gear rack in the form of a pull rod, on the threaded parts of which there are split nuts and a carrier with a double-sided spring buffer. This provides a delay in the movement of the carriage, which is necessary for the operation of the automation elements, and simplifies the changeover process of the device. The use of tick-borne grips eliminates the time spent on filling the strip, and the use of a lever system in gripping eliminates slippage of the strip. 4 з.п, ф-л, 6 Il. i SL with and 00

Description

one

The invention relates to mechanization and shtautochny works and can be used in machine building.

The purpose of the invention is the expansion of technological capabilities by performing a kinematic connection of a drive element of a press with a gear rack in the form of a tie, equipped with split nuts, and a fluid with a double-sided spring buffer,

Fig, 1 shows the proposed device, a general view; FIG. 2 is a section A-A in FIG. one; in fig. 3 is a section bb of fig 1; FIG. 4 is a view B of FIG. 1; FIG. 5 is a view of D on FIG. 1; in fig. 6 is a section d-D in FIG. 5,

The device has a base 1 attached to the press table through the mounting plate 2. On the base 1 a guide 3 is fixed, on which a carriage L, having a clamped gripping body 5, is mounted for reciprocating movement. triggered by a ram press. On the base -1, the strip guides 7 are fixed.

The carriage 4 is a U-shaped element on which a clamp-type gripping body 5 is mounted. In the lower part of the carriage 4, two stop bars 8 and 9 are located along its central axis. U-shaped bars 10 and 11 are fixed symmetrically relative to the central axis, inside which links of chains 12 and 13 of the drive are located

The actuator 6 has a toothed rack 14 fixed on the t 15 and entering into

Gearing with gear wheel 16 mounted on shaft 17 with driving sprockets 18 and 19, which are driven by chains 12 and 13, put on tension sprockets 20 and 21. Gear wheel 16 is mounted in housing 22, fixed on base 1. There were - the target end of the gear wheel hub 16 is mounted on the half coupling 23, connected by a safety pin 24 with a second crawl with a UF 23 mounted on the splined end of the shaft 17. The movement from the slide of the press is transmitted by the other 15 through the leash 26 by the carrier 27 with a spring-loaded double-sided buffer in the form of spring loaded sleeves 28 and 29, interacting alternately with split nuts of the lower 30 and upper 31, mounted on the threaded part of the rod 15,

five

Q

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The clawed gripping organ consists of two-arm levers 32 and 33, at one end of which are adjustable adjustable sliders 34 and 35 with clamping jaws 36 and 37 for clamping the strip along the ends. The second ends of the levers are connected via levers 38 and 39 to power cylinder 40.

Guide 7 consists of four bars. The bottom bar 41 is base and is fixed on the fixed guide 3 by adjusting screws 42 and 43, the side bars 44 and 45 are secured by studs 46-49 to the transition bars 50 and 51 mounted on the bottom bar 41. The top plate 52 is by means of transition bars 53 and 54 and the studs 55-58 are attached to the side bars 44 and 45. Since the side bars are mounted on the studs, the guide 7 can vary in width depending on the dimensions, strips, into the adjusting screws 42 and 43

allow you to change the horizontal level of the feed strip 59 lower bar 41.

The device is equipped with spring-loaded ynopai M end positions of the carriage, one of which is in the form of a stop screw 60, screwed into a spring-loaded strip 61 mounted on movable rolling pins 62 and 63, and the screw 60 is mounted so that it can move up to the end of the support post 64. Plank 65 is mounted with The other side of the rollers 62 and 63 with the ability to interact with the sensor 66, the Second stop is made to the spring-loaded stop 67, the bar 68 and the sensor 69. The nuts 30 and 31 are equipped with screws 70 and 71 for tightening each nut. The carrier 27 is connected with a leash by 26 screws 72 and 73.

The device works as follows.

The end of the strip 59 is fed to the zone of the tick grip 5, the press is turned on. When the press ram moves down (working stroke), the carrier 27 begins to move down, reaches the lower split nut 30, abuts against it and causes the thrust 15 to go down with the rack 14, which rotates the gear wheel 16, thereby moving the carriage to the right circuits 12 and 13. In the extreme right position, the stop bar 9 of the carriage 4 rests on the stop screw 60, moving it in the direction of movement to the rigid end of the support post 64. When

this strap 65 moves away from the sensor 66, which gives the signal. The force cylinder AO operates, the ends of the double-arm levers 32 and 33, the clamping jaws 36 and 37 are loose, the jaws converge and the jaws clamp the strip along the ends. As the press ram moves upward, the carrier 27 moves upwards. T ha 15 is at first motionless, since there is a gap between the shank and the planet carrier 27 with spring-loaded bushings 28 and 29. The carrier idling is necessary to trigger the power lindra 40 of the gripping device. When the upper spring-loaded sleeve 29 reaches the upper split nut 31, the tractor 15 begins to move up and the rack 14 drives the chains 12 and 13, which move the carriage 4 to the left. In the leftmost position, the stop bar 8 of the carriage 4 rests on the spring-loaded stop 67, the bar 68 moves away from the sensor 69, the force sillindar 40 operates, the ends of the double-shouldered arms 32 and 33, the carrying jaws 36 and 37 are spent . At this time, the press ram goes down again, the carriage 4 is moved to the right (while the strip 59 is stationary), takes the extreme right position, the clamp grips the strip, the cycle repeats.

The stroke of the carriage 4 is determined by the length of the part to be stamped and set by cutting nuts 30 and 31. For this, the carriage 4 is retracted to the far left position, the screw 70 of the upper cutting nut 31 is loosened, which is fed to the upper spring loaded sleeve 29 and fixed in this position by screws 70. Then, the carriage 4 is manually retracted to the extreme right position depending on the length of the part to be stamped, the stop screw 60 is turned to contact the stop plate 9 of the carriage 4, and the nut 31 is guided to the spring-loaded lower sleeve 28 and fixed screwed by 71 I

When changing or repairing the press of the rack, the rack 14 is easily released from the slide. For this, the screws 72 and 73 are released, the fixture drove 27 with the leash 26, representing them

fork bracket. The carrier 27 turns 90 and exits the lead 26.

Sliding guide allows stamping out of strip once

personal width and thickness, and split nuts 30 and 31, stop ENT 60 and stop 67 allow you to change the length of the stamped inserts in the bolt range.

The use of a close-to grip ensures automatic operation of the press, eliminates the time required to fill the strip, and the use of a clamp in the lever system eliminates slippage of the strip.

Claims (5)

1. A device for feeding the material into the working area of the process, containing the installed on the base of the material for the material, is mounted1 H -1--1 with the possibility of reciprocating along the material {for material with a gripping body, flexible T nusch 1Y body of the pen 1- e-carriage carriage, drive and tension 5 sprockets of a flexible body, a gear wheel connected to the drive sprocket, and a gear rack connected to the gear wheel and kinematic connection — to the drive element of the press, characterized in that, in order to expand technological capabilities, the kinematic connection the drive element of the press with a gear rack is made in the form of a rod connected to the rack gear, having threaded parts and fitted with nuts located on the threaded parts of the rod and mounted on the press drive element with the possibility of sludge with bilateral pruzhinnym.buferom mounted between the nut to be alternatively reacting with each of the nuts. 2. The device according to claim 1, characterized in that the gripping body is made of a tong and is provided with a gripping drive and a clamping sleeve PI under the side surfaces of the material. 0 five 0 45 3. The device according to paragraphs. 1 and 2, o t - in that the material guides are mounted with adjustable distance between them. 4. Device on PP. 1-3, characterized in that it is provided with spring-loaded stops of the end positions 1 {arcs, 513463056 5. The device according to PP. 1-4, about T - the nut is threadedly cut along the forming axis, which is each provided with a screw for tightening the nut.  7 / / /  // 4J "a t / -G69 67 g  four. FIG. one 54 5J5 2Z g zs sixteen FIG. 2 73 FIG. five Editor N, Bobkova Order 5426 Tehred L., Serdyukova Corrector Circulation 709Subscribe VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, ul, Proektna, 4 6 Proofreader E, Lonchakova