RU1815245C - Device for orienting flat and flexible articles and for delivering them into working zone - Google Patents

Abstract

SUMMARY OF THE INVENTION: the device is new in design of a support with orienting elements in the form of a duct with a transparent upper and lower planes, with photo sensor arrays located on their inner surfaces and two rows of photo sensors of orienting elements parallel to each other on the upper outer plane axis of symmetry at a distance equal to the width of the passage of technological equipment. The device also has a grip located above the supporting surface on one of its sides, and a conveying element under the supporting surface. 1 s.p. f-ly, 5 ill.

Description

The invention relates to light industry and can be used, for example, in the leather industry for feeding and orienting leathers to process equipment.

The aim of the invention is to improve orientation accuracy and expand the technological capabilities of the device.

This is achieved by the fact that the device further comprises a gripper located on the support surface on one of its lateral sides and a transporting element under the support surface. The supporting surface is mounted with the possibility of withdrawing it from the working area to the side opposite to the gripping position and has a drive for moving it. The supporting surface is made with two transparent planes, an upper and a lower one. On the bottom surface from the inside, the support is evenly spaced on the entire surface.

photosensors electrically coupled to a support movement drive. On the upper surface, on its inner side, the support has similar sensors, also electrically connected to the drive for moving the support, in addition, has orienting elements arranged in two rows and made in the form of photosensors. The exciting element is made in the form of a suction cup.

The implementation of the support in the form of a transparent box allows you to place the matrix of photosensors inside it, and with their help to orient the products without overlapping one to another with a minimum gap.

Comparative analysis with the prototype shows that the proposed object contains, like the prototype, a supporting surface with orienting elements and a mechanism for feeding the product to the supporting surface, but differs from the prototype in that the supporting surface has a system of photosensors, and a gripping element

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made in the form of a pneumosucker and can move back and forth.

A comparative analysis with all known devices for feeding and orienting flat flexible products shows that the principle of orienting flat products by photosensors is known, but it applies only to products with straight edges. It is also known that the holding and gripping elements are in the form of vacuum suction cups.

However, the construction of the support is in the form of a box with a transparent lower and upper planes, when the photosensor arrays are located on their inner surfaces and two rows of photosensors are located on the upper outer plane, parallel to the axis of symmetry and at a distance equal to the width of the passage of technological equipment , and at the same time, the implementation of the gripping element in the form of a pneumatic suction cup with the possibility of rotation, vertical and reciprocating movement of the gripping element, allows you to move and orient Rowan article not only a geometrically regular shape, having straight edges, but also flexible article of arbitrary shape and apply them to the process equipment individually without overlapping each other.

In FIG. 1 shows a device for orienting flat, flexible products and feeding them into the work area (side view); in FIG. 2 - the same, top view; in FIG. 3 is a section AA in FIG. 1; in FIG. 4 - support, top view; in FIG. 5 is a diagram of the orientation of the product along the width of the working passage.

The device consists of a frame 1, on which a feeding mechanism is mounted, including a traverse 2 with pneumatic cylinders 3, with pneumatic suction cups 4 mounted on them with vacuum sensors 5, and a movable support 6. The upper position of the pneumatic cylinders 3 is fixed by limit switches 7. The movement of the support is carried out in the direction 8 mounted on frame 1.

An orientation tool is also fixed on the frame 1, including a rotation mechanism 9. A vertical movement mechanism made in the form of a pneumatic cylinder 10, with a suction cup 11 and a vacuum sensor

12. and longitudinal movement mechanism

13. with the possibility of movement along the axis of the device along the guide 14 (drive conditionally not shown).

On the frame 1, clamping strips 15 are secured with integrated sensors 16.

The leftmost and rightmost positions of the support are fixed by limit switches 17 and 18. The movable support consists of two

sheets of transparent fiberglass 19 bonded with some clearance. Two rows of photosensors 20 are mounted on the top sheet of the support along its longitudinal axis, spaced apart by a distance equal to the width of the working passage of the technological equipment, and the longitudinal axis of symmetry of the device bisects this distance.

Between these rows of photosensors there is an array of photosensors 21. A similar array of photosensors is located on the bottom support sheet. Moreover, projections on the horizontal plane of the photosensors

The 5 upper and lower matrices match.

The sensors of the upper and lower matrix, the projections of which coincide, form a pair of sensors that are electrically connected to each other. Photosensors are evenly spaced in

0 lower and upper matrices. The sensors are located on the inside of the movable support with the working surface facing out so that they do not interfere with the movement of the flat flexible products when orienting them on the top sheet of the support and in order to prevent damage and contamination on both sheets of the support.

The support photosensors are illuminated by light sources 22 and 23. The device is equipped with

0 a lifting table 24 and a string conveyor 25 located under the orienting mechanism, and which can be directly a conveyor of technological equipment.

5 The device operates as follows: a pallet with a stack of thin flexible material is mounted on the lifting and lowering table 24. The pneumatic suction cups 4 mounted on the pneumatic cylinders 3, when the device is turned on, are lowered onto the upper sheet of the foot. Upon reaching a certain level of vacuum inside the pneumatic suction cups, the vacuum sensor 5 gives a command to lift the pneumatic cylinders 3.

5 The pneumatic suction cups 4, rising, capture the edge of the skin, forming a gap between it and the foot, sufficient to pass the support. After lifting the pneumatic cylinders 3, the limit switch 7 is activated

0 giving a command to move the support b under the upper raised sheet. When the support moves, the top sheet is laid on the support 6. When the support reaches the extreme left position, the end

5 switch 17. giving the command to turn off the vacuum and in the suction cups 4 and the reverse movement of the support 6. When the support 6 reaches the extreme right position, the limit switch 18. activates the command. To stop the support 6 in this

position, as well as a command to lower the pneumatic cylinder 10 with the pneumatic suction cup 11 installed on it onto a sheet laid on the support 6. At the same time, a command is issued to raise the lifting-lowering table 24 to maintain a constant level of the foot with flexible sheet material, as well as a command to lower pneumatic pressure 4 by pneumatic cylinders 3 to the subsequent sheet with their further rise together with the captured edge of the sheet.

After the pneumatic cylinder 10 lowers the pneumatic suction cup 11 with the vacuum sensor 12 onto the sheet located on the support 6, the sheet is oriented so that its sides do not extend beyond two rows of sensors 20, which limit the width of the working passage of technological equipment, such as shown in FIG. 4, where further processing of the sheet will take place. If the sheet located on the support 6, protrudes on one side or simultaneously on both sides of the working passage of technological equipment, then some of the photosensors are on one of the two rows or, respectively, on. Both rows are closed. In this case, the rotation mechanism 9 of the orientation means is turned on. The sheet begins to rotate on the support 6 around the center of the pneumatic suction located above the longitudinal axis of the device.

The rotation takes place until then. until the sheet is in a position where both rows of photosensors are open, as shown in FIG. 5. This means that the sheet does not stand for the dimensions of the working passage of the process equipment.

After opening both rows of photosensors 20, they command to stop rotation and longitudinal movement of the sheet together with the orientation means by means of the longitudinal movement mechanism 13 towards the technological equipment on which further processing of the sheet takes place.

If, when laying the sheet on the support 6, ohm, it has taken a position in which none of the rows of photosensors is closed, this means that the sheet is already within the working passage of the processing equipment, i.e. orientation of the sheet is not required, the rotation mechanism 9 of the orientation means is not turned on, but the longitudinal movement mechanism 13 is turned on immediately.

 Longitudinal advancement of the sheet is carried out until its edge falls between the upper and lower pressing strips, overlaps the built-in sensors, which give the command to close the strips 15, stop the longitudinal movement, turn off the vacuum in the pneumatic suction cup And and raise the cylinder 10 Return to the initial position of the rotation mechanism 9 and the longitudinal movement mechanism 5.

Laying of the oriented sheet on the string conveyor 25, which can directly be a conveyor of technological equipment, occurs 0 when the support moves b to the left of the initial position.

When moving to the left, the support b slides out from under the oriented sheet, which is on it and one end 5 of which is clamped in strips 15.

The sheet is stacked on a string conveyor. As the support moves, the next sheet is laid on the support, and its edge is already lifted by the pneumatic suction cups 4. 0 The signal for moving the support to the left is the absence of the previous sheet, which was laid on the conveyor and moves with it, under the oriented sheet located on the support . A sheet of thin flexible material 5 located on a support covers part of the photosensors of the matrix of the upper support sheet illuminated by the light source 22 from above.

The sheet located on the conveyor. 0 covers part of the photosensors of the matrix of the lower support sheet illuminated by the light source 23 from below, and as it moves. When they are married, their number decreases.

Since the photosensors of the upper and lower 5 matrices, whose projections on the horizontal plane coincide, are electrically connected in pairs, the presence of the previous sheet under the stacked one will be determined by that. that under the closed .0 stacked sheet the photosensors of the upper matrix will be the photosensors of the lower matrix, closed by the bottom sheet. As the conveyor moves, their number decreases. When the photo sensors located under the stacked sheet on the lower matrix are completely exited from the stacked sheet, all the photosensors located under the stacked sheet on the lower matrix will be illuminated, and the combination of closed photosensors of the upper matrix and the corresponding 0 illuminated photosensors of the lower matrix will allow the matrices to signal the support movement to the left and laying the sheet on the conveyor.

Due to the fact that the device allows 5 to stack sheets of different sizes and any configuration, after orientation and feeding the sheet into the clamping bars under the sheet on the support, the previous sheet may not appear on the conveyor. That is, under the closed upper sensors there will immediately be illuminated photosensors of the lower matrix, in which case the matrices will immediately send a signal to the movement of the support to the left,

Currently, the supply of thin flexible sheet material in industry (particularly leather) is done manually. The use of the device makes it possible to automate this process. In connection with this, a worker will be released at each process step.

Claims (2)

SUMMARY OF THE INVENTION 1. A device for orienting flat and flexible products and feeding them into a work area, comprising a supporting surface with orienting elements, a gripping element arranged above it with a drive of its predetermined movement, and a product feeding mechanism to the supporting surface, characterized in that. in order to increase orientation accuracy and expanding technological capabilities, it has a grip located in the working plane of the supporting surface on one of its sides and under the supporting the surface of the conveying element, and the supporting surface is mounted with the possibility of withdrawing it from the working area to the side opposite to the position of the capture and has a drive for moving it, while the supporting surface is transparent with two planes, each of which on the inner surface is uniformly distributed throughout photosensors electrically connected to the support displacement drive, and orienting elements on the working surface of the support upper plane are arranged in two rows and us in the form of a photo sensor in. 2. The device according to p. 1, characterized in that the gripping element is made in the form of a suction cup. 9 22/5 / b 9WS181 Fig. yO7 / 0UC / 7 Ј it- C / U / OSH & / / 0 & A0d # / 7 em0 / g0gЈ / uesh & go odqoyfofatfi / j / s Ј - & t // Jw z / 0d0 # er # / jp0 / & fa, 7е # 0 0г # 4ес & г0 && / tyd fawj :.