SU1299681A2 - Arrangement for feeding elongated blanks with variable pitch - Google Patents

Abstract

The invention relates to the field of automation of ujTaMiioBOMHoro production and can be used, for example, in automatic punching of holes located at different distances from one another. The aim of the invention is the expansion of technological capabilities by increasing the range of processed products. The device is equipped with pads installed on the respective stops, made in the form of steps of the stepped plate. The adjustment of the desired step of feeding the dehumidification is done by rotating the eccentric bushings associated with the pads, followed by fixing them to the stops. As the feed carriage moves along the body guides, the dog is pushed into the groove and does not prevent the carriage from being pressed against the edge of the stepped plate. When the press ram is raised, the dog grabs the first step and lowers it below the bottom cover of the carriage. The carriage is pushed all the way to the second stage. Then the cycle repeats. 3 il. "O (L GcHE with so about 00 1H

Description

The invention relates to the automation of stamping production and can be used, for example, in the automated punching of holes located at different distances from one another.

The purpose of the invention is the expansion of technological capabilities by increasing the range of processed products,

FIG. 1 shows the scheme of the proposed device for feeding with variable pitch of lengthy blanks; in fig. 2 is a view A of FIG. 1 (top view of the adjustment pads); in fig. 3 is a section BB in FIG. 2 (scheme for the implementation of an adjustable stop in the steps of the step plate).

A device for variable-pitch feeding of long blanks to the treatment area consists of body 1, in the direction of which the carriage 2 is mixed, the step plate 3, the spring 4, the two shoulders lever 5, have, at one end, the pawl 6, pressed into the extreme position is spring 7, and at the other end is spring 8. Under the carriage, an individual drive 9 is installed on the housing. Each step of the step plate 3 is equipped with an adjustment pad 10. There is a step hole in it and a step hole coaxial with it is made according to boiling stages of the plate 3, which is installed in eccentric sleeves 11. The eccentric sleeves and cover plate are fixed to the step

retainer 2, and does not prevent the carriage from being pressed against the edge of the step plate 3. When running down, the press slider presses the right end of the lever 5, compresses the spring 8, the pawl 6, lifts, releases from the stop and under the action of the spring 7 turns clockwise in extreme position. When the press ram is raised, the spring 8 expands, the dog 6 lowers, seizing the first step of the stop, and compresses the spring 4, lowering the stop by one step so that the step is below the bottom cover of the carriage 2. The carriage under the action of the actuator 9 moves to the next step. During the next run of the press slide, the doggie 6 captures the second step of the 15-speed plate 3 and lowers the second step below the lower edge of the carriage. The carriage 2 is advanced to the width of the second stage, etc. The last stage is slightly higher than the others and the dog 6 cannot grab it. When the carriage retracts to the right, the spring 4 raises the support to its original position.

The proposed feeder with variable pitch of long workpieces has the following technical and economic advantages due to the smooth adjustment of the feed pitch: the manufacture of a stepped plate is simplified due to the fact that it is not necessary to exactly match the value of each of the pitch to the feed pitch, and also increases the range of coordinates

25

plate fixing screws 12, recessed 30 dinat punched elements, which leads

in the hole in the sleeve. The hole in the lining under the cylindrical part of the eccentric sleeve is made with a gap equal to or greater than the eccentricity of the sleeve, and the hole under the eccentric part of the sleeve is made with a gap of up to 0.05 mm. The sleeve is seated in a stepped plate with the possibility of rotation about its axis and with the possibility of interaction with the lining.

The device works as follows.

Prior to the start of the lining, they are mounted on the corresponding steps (stops) of the stepped plate, the eccentric bushings are placed in the holes of the plates and the corresponding holes in the base of the plate. Expose each stage to the required step size by turning the eccentric bushing around its axis and fix all the pads and eccentric bushing to the stepped plate with fastening screws. When the feed carriage 2 moves to the left along the guides of the housing 1 to the step plate 3 under the action of the actuator 9, the dog 6 is pressed into the groove provided in the cam

to expand the range of workpieces and reduce the time to prepare for the production of products, which is especially important when introducing flexible industries.

Claims (2)

Invention Formula Device for feeding with variable step lengthy blanks on the author. St. dd No. 427764, characterized in that, in order to expand technological capabilities by increasing the range of processed products, it is provided with lining with coaxial two-step holes, installed in them with two-step sleeves, one of the steps of which is eccentric, and the hole in the slip under the second the step of the sleeve is made with a gap equal to or greater than the magnitude of the eccentricity of the sleeve, with each of the pads with the sleeve installed in it 50 is fixed on each of the stops by means of a fastener. retainer 2, and does not prevent the carriage from being pressed against the edge of the step plate 3. When running down, the press slider presses the right end of the lever 5, compresses the spring 8, the pawl 6, lifts, releases from the stop and under the action of the spring 7 turns clockwise in extreme position. When the press ram is raised, the spring 8 expands, the pawl 6 lowers, gripping the first step of the stop, and compresses the spring 4, lowering the stop one step so that the step is lower than the bottom carriage cover 2. The carriage is driven by the action of the actuator 9 until it stops at the next stage. During the next run of the press slide, the dog 6 seizes the second step of the 5-speed plate 3 and lowers the second step below the lower edge of the carriage. The carriage 2 is advanced to the width of the second stage, etc. The last stage is slightly higher than the others and the dog 6 cannot grab it. When the carriage retracts to the right, the spring 4 raises the support to its original position. The proposed device for variable-length feeding of long workpieces has the following technical and economic advantages due to the smooth adjustment of the feeding step: the manufacture of a stepped plate is simplified due to the fact that it is not necessary to achieve an exact match of the value of each of the steps to the feeding step, and also extends the range of coordinates five dinat punched elements that leads to expand the range of workpieces and reduce the time to prepare for the production of products, which is especially important when introducing flexible industries. Invention Formula Device for feeding with variable step lengthy blanks on the author. St. No. 427764, characterized in that, in order to expand technological capabilities by increasing the range of processed products, it is equipped with lining with coaxial two-step holes, two-step bushings installed in them, one of the steps of which is made eccentric, and the hole in the pad for the second step of the sleeve made with a gap equal to or greater than the magnitude of the eccentricity of the sleeve, with each of the plates with the sleeve installed in it secured to each of the stops by means of a fastener. S 7 . 7 Vida AT T thebes