SU882958A1 - Universal frame cutter - Google Patents

Description

one

The invention relates to the use of building materials, in particular, to devices for breaking glass sheets from a continuously drawn glass ribbon by air-jet vertical drawing machines.

A device is known for breaking a moving sheet glass along transverse headers, designed to break a horizontal moving glass.

The closest in technical solution and the achieved result to the invention is a universal frame breaker containing a base, a swing frame with a crank drive mechanism, supporting and pressing rolls, drive rolls. In this device, a glass ribbon passes between the support rolls of the swing frame and the pressure rolls of the clamping frame. When the glass reaches the required height with a ribbon, it is cut by a cutter, and a command is given to trigger the pneumatic cylinder, which with the help of a lever system moves the clamping frame with the clamping rolls parallel to the glass and, thus, the cut glass sheet is clamped

between the support and pressure rolls. After that, the frame turning actuator is turned on and the sheet fragment from the tape is made. When the frame approaches the horizontal position, the pneumatic cylinder of the movement of the clamping frame acts in the opposite direction and releases the glass. A sheet of glass is rolled onto rolls and rolls out.

10 in any direction through the resulting gap between the swivel and clamping frames. The frame returns to vertical saturation for receiving the next sheet.

15

The advantage of this device is the possibility of both direct and side roll-out of broken sheets. However, the presence of the clamping frame

20 performing a plane-parallel motion with the help of an air cylinder, is a significant drawback, which has a negative effect on the technical and operational indicators of the device. .

A large number of levers, movable joints, during operation, distort the plane-parallel movement of the clamping PCIMKH

30 and therefore uneven

the distribution of the clamping force of the sheet to be broken off across its width.

Strengthening the rigidity of the clamping frame leads to a significant increase in the mass of moving parts, directly participating in the process of fragments, which gives greater inertia and leads to sharp jolts at the beginning of the movement of the swing frame, t. at the moment of breaking the glass sheet, it has a negative effect on hinged joints, the wear of which distorts the plane-parallel movement of the clamping frame.

In the absence of air in the pneumatic system, the mechanism for moving the clamping frame does not work, the support and nip rollers are compressed under the weight of the frame, preventing the glass ribbon from being pulled out during the vertical position of the swing frame, which can lead to its breakage and fall, and in the horizontal position frames - roll-out of broken glass sheets.

In addition, in this device, the support and pressure rolls are deformed under the action of the clamping force (the largest deflection in the middle of the shafts is downward to the supporting ends, which does not allow to create an even distribution of the clamping force across the width of the glass ribbon.

The purpose of the invention is to carry out straight and side roll-out and to improve the operating conditions, as well as to evenly distribute the clamping forces across the width of the glass ribbon.

This goal is achieved by the fact that in a universal frame breaker containing a base, a swing frame with a crank drive mechanism, support and pressure rolls, drive rolls, in the turn frame the side spars are made with a window, and the pressure rolls rolls are made with an increase in diameter from the edges of the roll to the middle.

This ensures the necessary rigidity of the swinging frame and significantly reduces the mass of the moving parts of the breaker that are directly involved in the breakage process.

The sheet is clamped and released at the end of the frame rotation with the help of a lever-spring mechanism by fixed stops, which eliminates the possibility of forces that prevent the glass ribbon from being pulled out and the broken sheets roll out.

The frame is rotated with supporting and clamping shaft chucks carried out by a crank mechanism in order to ensure smooth movement at the moment of breaking.

The rolls, which receive and pump out broken glass sheets, are installed on the basis of the breaker and have an individual chain drive.

FIG. 1 shows a device with a vertical position of the swing frame, a general VIEW} in FIG. 2 view A in FIG. 1J in FIG. 3 — design of pressure rolls.

The base of the breaker consists of two racks 1 and 2, connected by interconnection 3. One of the uprights, depending on the direction of rolling out the glass sheets (rollout in the opposite direction to the drive) and the location of the breaker in the workshop, will accommodate from the electric motor 4, brake 5, the worm gearbox b and the one-stage cylindrical gearbox built into the rack. The large twin gear of a cylindrical gearbox, which is a crank, is connected by a connecting rod 7 to a swinging frame 8.

The swinging frame is a rigid metal structure consisting of left and right side members 9 and

10, made in the form of frames with a window

11, the cross section of which allows lateral roll-out of broken glass sheets. The spars are interconnected by connections 12 and the sleeve 13, which ensures the transmission of torque when the frame is rotated. The spacing between the side members corresponds to the condition of receiving and direct haulage of the glass sheet with sides.

On the rotary frame there are four support rolls 14 and two pressure rolls 15.

Each roller 14 and 15 is provided with rubber rollers between which a breakable sheet of glass is clamped, the rollers mounted on the pressure rollers 15 being made increasing in diameter from the edges of the rollers to the middle, which eliminates the possibility of uneven clamping of the glass ribbon when the rollers bend from the clamping force, and also pressing the glass with the extreme rollers when they are equal in diameter.

The glass sheet is clamped by springs 16, which act on the pressure rolls 15 through L-shaped levers 17.

The unclamping of the rollers is carried out in the final vertical and horizontal positions of the pivoting frame 8 by means of a rod 18 and a lever 19 having two projections / which are operated by two stops 20 and 21.

Between racks 1 and 2 of the mounting rolls of the 22-haul, performed in two versions - for straight or side haulage. The drive of the rolls of the hauler is mounted on the rack, the carrier of the rotational drive of the frame / and consists of an electric motor 23 connected via a belt drive with a worm gearbox 24 and further through a chain

gear with sprockets mounted directly on the rolls of the hauler.

The device works as follows.

In the initial position, the pivoting frame 8 is arranged vertically, the lever 19 abuts against the abutment 20, the pinch rolls 15 of the pivoting frame are in the open position.

When the glass ribbon of the Air Force produced by the Mass Air Force is moving, its leading edge, having reached a certain level, through the detector. Sends a pulse to turn on the scissors (not shown). After trimming the glass ribbon, a command is issued to turn on the rotational drive of the frame 8. The protrusion of the lever 19 moves away from the stop 20, and the pressure rolls 15 with the help of springs 16 clamp the glass. Upon further movement of the frame, a sheet of glass is detached from the tape and falls to the rolls of the hauler.

When the frame 8 approaches the horizontal position, the lever 19 meets the stop 21 in its path and, through the rods 17, depresses the pressing rolls 15 from the glass sheet, freeing it. A sheet of glass is applied to the rollers 22 of the haulage.

The pivoting frame 8 stops at its extreme positions (vertical and horizontal, is performed using contactless sensors 25 mounted on a side stand supporting the frame rotation drive. The sensors are affected by plates 26 mounted on a disk 27 mounted on the same shaft with a crank gear. The indicator 28 gives a pulse to enable the cutter.

When the frame rotates off horizontally, the electric motor 23 of the drive, hauler turns on, and a sheet of glass laid on the rolls of the haulage is transmitted through the window 11 of the swivel frame when side rolling out, or between side members 9 and 10 when rolling right onto transport devices and horizontal lines flat glass processing.

After rolling out the sheet of glass, the haulage drive is disconnected. And the turn actuator is simultaneously activated. frame 8 in a vertical position.

At the end of the rotation of the frame 8 by pressing the protrusion of the lever 19 on the anvil 20, the clamping poles 15 are opened, and the crusher is prepared for the next cycle.

0

The proposed design of a universal frame breaker allows to improve the quality of sheet fragments, glass from tapes continuously pulled out by the VVS machine (significantly, reducing metal consumption and labor intensity of production, increasing reliability in operation, and using versatility to apply it in all variety, Existing-planning of the workshops. Vertical drawing of sheet glass.

Claims (2)

1.Universal frame breaker, 5 containing base, swivel frame with crank drive mechanism, support and pressure rolls, drive rolls, characterized by the fact that / to improve the operating conditions, in the swivel frame side spars are made with a window. 2. The control valve according to claim 1, characterized in that, with a goal equal to 5 measured distribution of zgikim's efforts along the glass ribbon ishrin, rollers of the pressure rolls are made with increasing digeshtra from the edges of the roll to the middle. 0 Sources of information taken into consideration 1. US patent 4088255, cl. 225-98, 1978. 2. USSR author's certificate f according to the application 2511358, class C. 03 B 23/20, 1977.