WO2010147511A2

WO2010147511A2 - Roller conveyor

Info

Publication number: WO2010147511A2
Application number: PCT/RU2010/000319
Authority: WO
Inventors: Андрей Виленович ЛЮБОМИРСКИЙ
Original assignee: Lyubomirskiy Andrey Vilenovich
Priority date: 2009-06-19
Filing date: 2010-06-15
Publication date: 2010-12-23
Also published as: WO2010147511A3; RU2009123294A

Abstract

The invention relates to the field of means for conveying elongated articles and can be used in the production of such articles, primarily in the form of sheets or strips. The roller conveyor comprises a set of rollers arranged in a frame. The frame is connected to a device that is designed to be capable of raising and lowering the frame. The technical result is the reduced production cost of articles produced using a roller conveyor of the proposed design.

Description

Rollgang

The invention relates to the field of transport engineering, namely, to the field of means for moving long products, and can be used in the manufacture of long products, mainly in the form of a sheet or tape.

Known (SU, copyright certificate 326063) is a drive roller conveyor of a rolling mill containing a frame, transport rollers driven into rotation through a spur gear with spurious gears, and spurious gears are loosely mounted staggered on the trunnions of the rollers, excluding the outermost roller.

A disadvantage of the known roller table should be recognized as the possibility of transporting goods only in the horizontal plane.

Known (SU, copyright certificate 1209527) is a live roll containing a transmission shaft mounted on a fixed base, a series of rollers, each of which is kinematically connected to the transmission shaft by a pair of bevel wheels, one of which is mounted on the axis of the roller, and it is additionally equipped with shafts, each of which connected to the transmission shaft by a pair of cylindrical gears, while another bevel wheel of each pair of bevel wheels is mounted on the corresponding shaft.

A disadvantage of the known roller table should be recognized as the possibility of transporting goods only in the horizontal plane. Known (SU, copyright certificate 1316890) is a live roll containing rollers mounted on shafts mounted on bearings in a housing with gears and friction discs freely mounted on them and kinematically connected to the drive by spring, thrust and adjusting elements pressed against the end surface of the gears, each the shaft is made with a threaded hole at the end and with a groove mating with it and perpendicular to the threaded hole, in which the thrust element is located between the bearing and the spring t, while the adjustment element is made in the form of a screw located in the threaded hole of the shaft of the screw, mounted with the possibility of interaction with the thrust element.

Also known (DE, patent 1303751) is a roller table for oriented feeding of products containing a frame on which clips with load-bearing rollers are mounted. The construction of the roller table is designed to transport only cylindrical products.

Known (SU, copyright certificate 703434) is a roller table designed to transport packs of thin sheets and containing a frame and rollers mounted on it, which are freely mounted on axes connected to the drive shaft, located between the rollers, and the axis of the rollers are parallel to the drive shaft.

Known (RU, patent 2015088) is a wheeled roller table, comprising a series of frames with clips mounted on them, on which wheels are mounted in pairs, a device for turning the clips and a wheel rotation mechanism in the form of a drive transmission shaft with discs mounted between the wheels mounted on it, the device for rotation, the clips are made in the form of vertically arranged guide bushings pivotally mounted on the frames, rods rigidly connected to the clips and located in the guide bushings with the possibility of rotation and translational movement of the fingers fixed on the clips and the drive kinematically connected with the fingers, while the axis of rotation of the guide bushings are parallel to the axis of the transmission shaft.

Known (RU, patent 2234447) is a drive roller table, including rollers mounted in bearings with the possibility of rotation, kinematically connected to electric motors, an inclined loading tray oriented perpendicular to the longitudinal axis of the roller table, and a bed, and bearing bearings of each of the rollers placed under the loading tray, fixed on a slider with the possibility of its lateral displacement along the guide of the intermediate frame mounted on the bed, while the guide is made in the form of a dovetail, and the slider and the intermediate frame are equipped with stops with the possibility of placing a compression spring between them and coaxially with the spring of a removable embedded element.

Known (SU, copyright certificate 933561) is a drive roller table for oriented feeding of products, comprising a bed, a frame placed on it and horizontal support shafts installed along it with rotary clips located on them, on which support shafts are mounted with load-bearing rollers placed on them and rigidly connected with them asterisks, and to expand the functionality of the roller table by adjusting the height of the feed of the transported goods, each clip is equipped with a support the shaft with a block of sprockets, at least two of which are connected via endless chains to sprockets sitting on the supporting shafts of this clip, and the third sprocket is connected to the sprocket of the block of the adjacent clip.

The famous roller table works as follows.

To deliver the cargo to the place of its processing, the clips are installed in a position that provides the necessary height for the placement of the supplied cargo in accordance with the height of the receiving devices. When the drive motor is turned on, movement through the chain is transmitted to the sprocket block and, through endless chains to sprockets of load-bearing rollers. Simultaneously with the use of an additional infinite chain, the movement is transmitted to the block of sprockets and load-bearing rollers of the adjacent clip, and from it in the same way to other clips of the roller table. If necessary, changes in the height of the supplied goods rotate the cage to the desired position. In this case, the intermediate shaft rotates and through worm gears the rotation is transmitted to the shafts and cages. Thus, in the process of changing the height of the load, the frame remains stationary.

A disadvantage of the known roller table adopted for the closest analogue is the limited ability to change the height of the moving rollers of the roller table.

The technical problem, solved by means of the developed design, is to expand the possibilities of using the rolling table.

The technical result obtained by the implementation of the developed design is to reduce the cost of the product manufactured using the rolling table in the process chain by eliminating equipment moving the workpiece in the vertical plane, as well as significantly increasing the productivity of the line, of which it is part while reducing costs to clean the working surface of the working area into which the conveyor transfers the workpiece.

To achieve the specified technical result, it is proposed to use a roller table containing a set of shafts installed in the frame, while the frame is connected to a device configured to raise and lower the frame. Preferably, the roller table is additionally provided with a drive mounted to rotate shafts. In addition, the roller table may further comprise a drive mounted to rotate the shafts and move them in a vertical plane. The working elements in the form of rotation bodies selected from the group consisting of disks, wheels, rubberized wheels, brushes and gears can be mounted on the shafts with the possibility of rotation. In some cases, the implementation of the body of revolution can be performed eccentric. When implementing the developed design, only one drive can be used, mainly an electric drive, which is kinematically connected to the mechanism of movement in the vertical plane of the frame, but also kinematically connected to the mechanism of rotation of the shafts and their movement in the vertical plane. Shafts can be made both metal (medium-carbon steel, aluminum alloys), and polymer. The material of the shafts, as well as the degree of cleanliness of their surface treatment, depend on the tasks being solved. The vertical movement mechanism of the frame is preferably selected from the group consisting of a hydraulic cylinder, a flexible element, a flexible element with liquid inside, a pneumatic cylinder, a flexible element with air inside, an eccentric, a lever, a screw gear, a ball screw, a screw roller gear, a bearing, a belt gear , gear transmission, linear motor, pneumatic pusher, electromagnet, wedge, chain transmission, block system, winch, variable frequency drive, variator, friction gear. Similarly, the mechanism of rotation and / or movement of the shafts is preferably selected from the group comprising a hydraulic cylinder, a flexible element, a flexible element with fluid inside, pneumatic cylinder, flexible element with air inside, eccentric, lever, screw drive, ball screw, screw roller, bearing, belt drive, gear, linear motor, pneumatic follower, electromagnet, wedge, chain drive, block system, winch, variable frequency drive, variator, friction transmission.

During the development of the construction of the roller table designed to move long products to the processing stage, the applicant solved a previously unmet task and, moreover, an unsolved problem - the use of a roller table to move products at various horizontal levels due to movement in the vertical plane of the frame. This greatly simplifies the design of the roller table (in comparison with the closest analogue), allows you to simplify the hardware design of the production line by eliminating the lifting devices used during transportation of the processed product along the production line. All of the above allows, ultimately, to reduce the cost of the processed product.

The developed design rollergang can work both independently and as part of various devices and devices used in various processing of various products.

In particular, the developed construction of the roller table can be used for painting sheet materials, printing images on sheet materials, laser processing, electric erosion treatment, machining with abrasive and metal brushes, plasma processing, inkjet abrasive processing, transportation of the processed product along the production line when the plants included in the production line have different heights. In all these cases of using the roller table, the workpiece is supplied by rotating the shafts or due to external force acting on the roller table shafts, then using a drive frame with roller table shafts it changes its height relative to the floor surface until a number of shafts are placed at the level of the receiving device of the next processing unit and then due to the rotation of the shafts or the action of external force, the workpiece is supplied to the receiving device of the next processing unit, and the frame with the roll table shafts is returned to the previous one height level corresponding to the level of the dispensing device of the previous processing unit. In the case of placement on the shafts of the working bodies of a disk-shaped form, especially eccentrically installed, the lift of the transported product can be further increased due to the rotation of the body of rotation by rotation of the shaft

The developed design roller table can be used as an integral part of product processing plants. So, in particular, it can be part of a device for painting a sheet product, moreover, the painting takes place on the tabletop of the installation. The roller table is placed below the supporting surface, which is the front (outer) surface of the countertop. The rolling table contains a metal frame in which several shafts made of medium carbon steel are placed. Disc-shaped devices mounted on the shafts are selected from the group consisting of discs, brushes, gear wheels, etc. The shafts are mounted on a frame with the formation of a rigid structure. Frame shafts installed in rows. The shafts are connected to a drive that rotates the shafts at a given speed, with all the shafts moving at the same angular speed in one direction. An important feature of this entire design is that discs that are mounted on shafts and the frame can move up and down. In this case, the disks can rise above the surface of the countertop, which makes it possible to move goods over the surface of the countertop without touching it. Disks are located inside slots in the countertop. Disks are placed (their plane is parallel to the direction of movement of the sheet materials) so as to move loads along the table

A table with a roller table can be used for painting sheet materials, printing images on sheet materials, laser processing, electroerosion processing, machining with abrasive and metal brushes and / or discs, and plasma processing.

A table with a roller table can also be used when applying metal and nonmetallic coatings on the surface by deposition, blasting, abrasive particle processing, painting, printing, photolithography, welding, etc.

The work is structured as follows.

In the initial position, the roller table is below the table top under the support table. Shafts and discs are stationary. Before starting processing, the roller table frame is raised using the drive up to a predetermined height (tens of millimeters or more) and I start to rotate the shafts (and, accordingly) the disks in the desired direction. From the previous technological operation, a blank in the form of a sheet is brought to the table - support.

Roller picks it up (hooks) and moves it along the table a certain distance.

On the path of movement of the workpiece is a retractable stop, which in the extended position prevents the movement of the workpiece. The sheet stops. The rotation of the shafts and rolls of the roller table is stopped. The frame of the roller table along with the blank sheet is lowered down.

Vacuum clamp presses the sheet to the table. Carry out a technological operation for processing the workpiece.

After the operation, the vacuum clamp is stopped,

The roller table rises, the rotation of the rollers begins, the sheet moves to the next operation.

Using the rolling table of the developed design allows to reduce the cost of the product by eliminating additional equipment moving the processed product in a vertical plane from the roll table shafts to the receiving unit of the product processing unit or from the output device of the product processing unit to the roller table shafts.

The developed construction of the roller table allows you to take the workpiece above the working area, lower it onto the surface of the working area, process it in the working area and remove it without dirtying the working surface of the working area (for example, with paint so that there are no layers of paint on the working surface that will create a non-flatness of the upper part the processed product when applying and removing paint from the surface of the protrusions). The developed construction of the roller table significantly increases the productivity of the line of which it is a part, reduces cleaning costs the working surface of the working area (from paint and other contaminants), provides high quality products. If during the processing you drag the product along the surface of the processing device, then, among other things, the working flat surface of the table will wear out, the requirements for flatness of which are very high. In addition, if there are high requirements for the roughness of the back surface of long products, then it is also not recommended to drag them around the table. It is also convenient to use the rolling table of the developed design for feeding processed products on the table into cells located at different heights or to take them out of these cells. The developed design roller table can be used as a switchgear for switching (flow switch) of several product flows processed using slightly different technologies, but having several common operations. For example, painting products in paint baths with different colors of paints. Moreover, all products undergo the same surface preparation operations, and only the paint operation is different for them.

Claims

Claim.

1. Roller, containing a set of shafts installed in the frame, while the frame is connected to a device made with the possibility of raising and lowering the frame.

2. Roller according to claim 1, characterized in that the device is selected from the group consisting of a hydraulic cylinder, a flexible element, a flexible element with liquid inside, a pneumatic cylinder, a flexible element with air inside, an eccentric, a lever, a helical gear, a screw ball gear, a screw roller transmission, bearing, belt drive, gear transmission, linear motor, pneumatic follower, electromagnet, wedge, chain drive, block system, winch, variable frequency drive, variator, friction gear.

3. Roller according to claim 1, characterized in that it is additionally equipped with a drive mounted with the possibility of rotation of the shafts.

4. Roller according to claim 1, characterized in that it further comprises a drive mounted to rotate the shafts and move them in a vertical plane.

5. Roller according to claim 3 or 4, characterized in that the drive of the selected group contains: a hydraulic cylinder, a flexible element, a flexible element with liquid inside, a pneumatic cylinder, a flexible element with air inside, an eccentric, a lever, a screw drive, a ball screw gear, helical roller gear, bearing, belt gear, gear, linear motor, pneumatic follower, electromagnet, wedge, chain gear, block system, winch, variable frequency drive, variator, friction transmission.

6. Roller according to claim 1, characterized in that the working elements in the form of bodies of revolution selected from the group consisting of disks, wheels, rubberized wheels, brushes and gear wheels are mounted on the shafts with rotation.

7. Roller according to claim 6, characterized in that the bodies of revolution are made eccentric.