RU1782890C - Device for piecewise distribution of long-size cylindrical products - Google Patents

Abstract

Usage: for the automation of piece delivery of long cylindrical products from a bundle to a predetermined technological position, in various fields of national economy. SUMMARY OF THE INVENTION: an increase in the productivity of a device is ensured by parallel execution of commands for issuing a blank for the separated end and moving the slider with a cutter and an emphasis on the blank package. 1 s P. f-ly, 6 ill.

Description

(L

WITH

The invention relates to mechanical engineering, in particular to devices for the single-piece dispensing of cylindrical products.

A device for dispensing piece-length products by the piece is known, comprising a receiving table mounted inside of it with the possibility of moving along the guides of the transport carriage with a rotary spring-loaded pusher interacting with the product and thrust pins.

A disadvantage of the device is the low reliability of the piece separation and dispensing of workpieces (especially flexible interlacing products) and the significant amount of travel of the conveying unit. This reduces the performance of the device.

Of the known closest to the claimed device in technical essence and the achieved result is a device for the single piece delivery of long cylindrical products, comprising a receiving rack, product shifter, product cutter, spring-loaded additional cutter.

A disadvantage of the device is the low reliability of the single-piece delivery of workpieces to a given technological position. When moving the cutter along the rack in contact with the products, one or more blanks are caught from the washerwoman from the laundress at one end, the second end of which can be located in the middle of the bundle or under the entire bundle of products. In these cases, bending when moving upward behind one end of the workpiece (the second end of which or their middle part is pinched) can, due to the arising bending moment, slide back from the protrusion of the cutter back into the bundle. This leads to the presence of idle cutter, which reduces the performance of the device.

00

go

00 h)

about

The need for successive reciprocating vertical and perfect movements of the cutter within each cycle also leads to a decrease in the productivity of the device.

In addition, the reliability of the device is reduced due to the complexity of the design, the presence of a significant number of intermediate elements, the complexity of the rack rotation drive and its control, which ensures a stop in a predetermined (time-varying) position at the command of the product availability transmitter, made in the form of a beam directly in contact with the bundle The reliability of delivering products to the required technological position is significantly reduced when working with blanks characterized by, for example, the presence of preserves onnoy grease or other conditions significantly reducing the friction coefficient, leading to slippage izde- dissolved in of pull rolls and demurrage device zannomu communication with the inability to pull the product located for example at the bottom of the stack. This reduces the performance of the device.

An object of the invention is to increase productivity.

This goal is achieved by the fact that the device is equipped with a sensor of extreme positions of the slider, a force sensor in the drive of the slider, a time relay, a blocking relay and an alarm, and the guide rails of the slider are located under the rack parallel to its receiving platform and perpendicular to its longitudinal axis, the cutter is mounted on the slider is rotatable about a horizontal axis and spring-loaded in the direction of rotation, the slider is provided with a fixed support fixed thereon, forming a pocket with a separator for the separated end of the product, a sensor for the presence of the article dispensing tion is installed on the site receivers hydrochloric shelf rack, passed in counter bore formed in the piston rod, which is parallel to the longitudinal axis of the longitudinal axis of the slider. A roller spring-loaded relative to the rack is mounted rotatably around the vertical axis at one end of the rod, and a limit switch is installed coaxially with the rod on the wall of the rack opposite to the stop wall, the breaking contact of which and the force sensor breaking contact connected in series with it in the primer of the slider and the closing coil of the sensor of the initial position of the slide, are included in the power supply circuit of the drive of the slide and the interlocking relay, the closing contact of which is switched on llelno to said normally open contact sensor

initial position of the slider. The closing contact of the limit switch is included in the power supply circuit of the pressure and drive roller drives and the time relay winding, one of the making contacts of which and the closing contact of the end position sensor connected in parallel to it are included in the signal supply circuit. In addition, a second make contact of the time relay is included in the circuit.

5 power drive pinch roller.

The inclusion of new features in the device and their interconnection gives it a new property, which makes it possible to increase the productivity.

0 in FIG. 1 shows a General view of the device; in FIG. 2 is a section AA of FIG. 1, at the time of feeding the captured product to the transport mechanism; in FIG. 3 is a section AA in FIG. 1 at the time of capture from the product package;

5 in FIG. 4 is a section BB of FIG. 1; in FIG. 5 is a view B of FIG. 2; in FIG. 6 is a control diagram.

The device comprises a rack, including the receiving platform 1 and the thrust wall 2. The rack can be made

0 continuous (see Fig. 1) or consisting of a number of transverse supports. Under the receiving platform 1 of the rack is installed a slider 3 with a drive 4 made, for example, in the form of a pneumatic cylinder. Slider 3 moves

5 along rails 5 located under the shelf parallel to its receiving platform 1 and perpendicular to its longitudinal axis. A slider b is mounted on the slider 3 with the possibility of rotation around the horizontal axis 7 and is spring-loaded in the direction of rotation by the spring 8. The slider 3 is also provided with a stop 9 rigidly fixed thereon, forming a pocket for the separated end of the article 10 with the slider 6.

5 The product presence sensor at the dispensing position has a rack 11 installed on the receiving platform 1 of the rack, passed into the hole 12 made in the rack 11, the rod 13, the longitudinal axis of which is parallel to the longitudinal axis of the slider 3. At the end of the rod 13 facing the cutter 6 is installed with with the possibility of rotation around the vertical axis 14, the roller 15, spring-loaded with a spring 16 relative to the rack 11, and a limit switch 17 is installed on the wall of the rack opposite the abutment wall 2, coaxially with the rod 13.

The cutter 6 and the stop 9 are moved into the groove 18 of the receiving platform 1 of the rack.

The mechanism for the longitudinal transportation of products consists of a drive roller 19, a pressure roller 20, guide rollers 21, and a receiving device 22. The drive roller 19 receives movement from an electric motor 23 mounted on a bed 24. The pressure roller is pivotally mounted on the bed and is connected to the air - a cylinder 25. The pinch roller 20 is provided with a groove along the forming groove to guide the article 10, and in the working position, the groove of the pinch roller 20 covers the surface of the drive roller. The groove of the roller 20 is installed along a line tangent to the generatrices of the guide rollers 21.

The opening contact 26 of the limit switch 17 of the presence sensor at the dispensing position and the serially opening opening contacts 27 of the force sensor 28 and the closing contacts of the sensor 29 of the extreme (initial) position of the slide 3 are included in the power supply circuit of the drive 4 of the slide 3 and the interlock relay 30. The closing contact 31 of the locking relay 30 is connected parallel to the closing contact of the sensor 29 of the initial position of the slider, and the making contact 32 of the limit switch 17 is included in the power circuit of the drive 33 of the pressure roller, p the drive roller drive 34 and the time relay winding 35, one of the make contacts 36 of which and the make contact of the sensor 37 of the extreme position of the slide 3 connected parallel to it, are included in the power supply circuit of the signaling device 38. The second make contact 39 of the time relay 35 is included in the power supply circuit of the drive 33 of the pressure roller . The power to the control circuit is provided by the button 40. The time relay 35 can be implemented, for example, in the form of a multi-position timer type VL56UHL4.

The force sensor 28 in the drive of the slider, which controls the pressure in the cavity G of the pneumatic cylinder 4, can be made, for example, in the form of an electric contact manb meter. The drive 33 of the pinch roller can consist, for example, of two pneumatic distributors, one of which supplies compressed air with a nominal pressure to the pneumatic cylinder 25, and the other supplies compressed air with an increased pressure to the pneumatic cylinder 25 (its winding is connected to the contacts 39 of the time relay 35) .

The operation of the device for the single issue of long cylindrical products is carried out as follows. A package of products to be processed is laid on the receiving platform 1 of the rack. The bag may consist of parallel or interwoven products.

Compressed air is supplied (the pressure of which is selected optimal for a particular size of the workpieces), and the pneumatic actuators take their initial position. The slider 3 is located at the longitudinal transport mechanism of the separated product (the pneumatic cylinder rod 4 is retracted, and the contacts of the sensor 29 of the initial position of the slider are closed). The roller 15, under the action of the spring 16, is located in the product package. The pressure roller 20 is in the upper position. Button 40 supplies power to the control circuit. In this case, through the closed contacts 26 of the limit switch 17, the force sensor 28 in the drive of the slider and the sensor 29 of the initial position of the power slider is supplied to the drive 4 of the slider and the blocking relay 30. Contacts 31 of the relay 30 are blocked opening (when the rod of the pneumatic cylinder 4 moves with the slider 3 to the package of blanks) the sensor contacts 29. When the slider 3 moves with the spring-loaded cutter 6 installed in its groove on the axis 7 and the stop 9 rests against the bag of blanks, the pressure is cut off on the cutter 6 and lowered (they are buried, overcoming the force of the spring 8) it is in the groove slider a 3. The stop 9, in contact with the package of workpieces and acting on it, forms the leading front of the workpieces (see Fig. 3), and the cutter 6, having moved beyond the product 10 under the action of the spring 8, moves to the upper position and the product 10 is in a pocket formed by a cutter 6 and an abutment 9. In this case, a force sensor 28 is activated in the drive of the slider, which monitors the force of the rod of the pneumatic cylinder 4 and the response threshold of which is selected from the condition of optimal capture of one workpiece of the specified size from the package. The power circuit of the actuator 4 of the slider and the relay 30 opens and the slider 3 with the captured workpiece 10 begins to move to the longitudinal transport mechanism of the separated product. After exiting from under the bag, the captured workpiece 10 (and possibly other workpieces carried by it) interacts with the roller 15, with which, overcoming the resistance of the spring 16, it moves further towards the longitudinal transport mechanism. In this case, the workpiece 10, which has fallen into the pocket formed by the cutter 6 to the stop 9, is additionally fixed in it by the roller 15 (see Fig. 3 and Fig. 5), and the articles that are coupled to the cut-off product are dumped back into the bundle. Slider 3, moving to

the initial position, leads one product from the package beyond the front end, installing it above the drive roller 19. In this case, under the influence of the rod 13, the end switch 17 of the product presence sensor is activated at the dispensing position and the extreme (initial) position sensor 29 of the slider. The contacts 26 of the limit switch 17 break the power supply circuit of the drive 4 of the slider, and its contacts 32 close the power supply circuit of the drive 33 of the pressure roller, drive 34 of the drive roller and time switch 35. Using the pneumatic cylinder 25, pressure roller 20 presses the product against the drive roller starting to rotate from the electric motor 23. 19 and the product 10 is pulled out of the bag onto the receiving device 22. After moving the product 10 from the product presence sensor to the delivery position, the roller 15 is returned by the action of the spring 16 to its original position, and the end switch 17 is turned off. Its contacts 32 open the power circuit 33 of the pinch roller, drive 34 of the drive roller and time switch 35, and contacts 26 close the power circuit of the drive 4 of the slider, which begins to move to the product package. A new cycle begins.

In the event that for some reason (for example, a workpiece is caught in oil slipping in the rollers 19,20), the product 10 does not go off the roller 15 for a certain time, set by the time relay 35, then the first group of contacts 39 of the time relay is activated 35 by issuing a command to the pinch roller drive 33, for example, increasing the clamping force (supplying compressed air to the pneumatic cylinder 25) or connecting an additional pinch roller with increased friction (shown in Fig.).

If, after this, the product for some reason (for example, its bent end is under the entire bundle of bound blanks) has fallen off the roller 15, after the second emergency time delay, the second group of contacts 36 of the time relay is activated and closes the power supply circuit of the signaling device 38 signaling to the operator idle device. The alarm 36 is triggered and after the product package is completed and the slider 3 has moved to its extreme position from the longitudinal transportation mechanism of the position product, controlled by the sensor 37.

When working with thin, easily deformable workpieces to compensate for the action of the spring 16, the product presence sensor at the dispensing position can be equipped with an additional spring-loaded lock (fixing the extreme upper position of the rod 13) triggered by

limit switch 17.

In the case of working with a wide range of product diameters, the cutter 6 and the roller 15 can be interchangeable, and the emphasis 9 can be moved (with fixation) along the slide 3.

0 Comparative analysis shows that the inventive device for the single issue of long cylindrical products has higher productivity due to the reduction of idle

5 strokes of the cutter and reduce downtime of the device operating in automatic mode.

Claims (2)

1. Device for single issue 0 long cylindrical products, containing a rack with a receiving platform and a thrust wall, a product cutter mounted on a slider connected to the drive, and a longitudinal mechanism 5 transportation of a separated product with drive and pressure rollers, a product presence sensor at the delivery position, characterized in that, in order to increase productivity, it is equipped with sensors for the extreme positions of the slide, a force sensor in the drive of the slide, a time relay, an interlock relay and an alarm, and guide rails of the slider are located under the rack parallel to its receiving area and perpendicular to its longitudinal axis, the cutter is mounted on the slider with the possibility of rotation around the horizontal axis and is spring-loaded lenii rotation, the slider is provided with a rigidly zakrep0 lennym abutment thereon, forming a pocket for otse- Catel separated end product and the sensor is the presence of the article in the delivery position is set at the receiving site shelf rack, 5 a rod passed into the hole made in the rack, the longitudinal axis of which is parallel to the longitudinal axis of the slider, while on one end of the rod facing the cutter with the possibility of rotation around the vertical axis of the roller, spring-loaded relative to the rack, and on the wall of the rack opposite the thrust wall, coaxial with the rod, a limit switch is installed, the normally open contact of which is 5 and the force contact in the drive of the slide connected in series with it and the make contact of the initial position sensor The slider contacts are included in the power supply circuit of the slider drive and the interlock relay, the make contact of which is connected in parallel with the aforementioned make contact of the initial position sensor of the slider, and the make contact of the limit switch is included in the supply circuit of the pressure and drive roller drives and the time relay winding, one of which make contacts and connected in parallel to him closehr ##. S. and The contact contact of the end position sensor of the slider is included in the power supply circuit of the detector. 2. The device pop. 1, characterized in that the second make contact of the time relay is included in the power circuit of the pinch roller drive. fiffff deputy / r / Fe / g: 3 (/ d. 4 Ј Butb # //, 6