CN217781026U - Glass substrate breaking machine - Google Patents

Abstract

The utility model discloses a glass substrate fracturer, including adjacent preceding conveyor and the back conveyor that is used for carrying the glass substrate, the glass substrate has the glass substrate of cutting indenture for cutting in advance, and preceding conveyor all is provided with the drum assembly who is used for restricting the glass substrate removal with back conveyor's top, and drum assembly sets up conveyor and back conveyor's the department of bordering on in the front, still including making back conveyor around the department of bordering on pivoted extensible member. The utility model discloses can effectively improve glass substrate's rupture efficiency.

Description

Glass substrate breaking machine

Technical Field

The utility model relates to a glass substrate processing technology field specifically is to relate to a glass substrate machine of breaking.

Background

At present, in the glass substrate production industry, especially, the overflow down-draw method is used for producing the liquid crystal glass substrate, the glass substrate which continuously flows down continuously needs to be cut according to the process size requirement, and is broken after being cut, and the broken and formed glass is transmitted to subsequent process equipment for processing. In the cutting and breaking process, under the action of the pressure of the cutter wheel, the cutter wheel cuts into the substrate glass to a certain depth. At the moment, the servo mechanism drives the cutter head to do linear motion on the substrate glass to mark a dent. The substrate glass is a brittle material, and after the dents are scribed, the microcracks automatically expand along the depth direction. Under the action of mechanical breaking, the expansion speed is accelerated. Finally, when the critical length is exceeded, the substrate glass is broken, and the cutting process is completed.

Because the glass substrate moves downwards at a fixed speed after coming out of the annealing furnace, the existing breaking equipment is difficult to break the glass substrate while maintaining the fixed speed of the glass substrate, the production efficiency is greatly influenced on a production line, and the glass substrate is damaged while being cut, so that the qualification rate of the glass substrate product is reduced, and the production process is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a glass substrate breaks machine improves glass substrate's rupture efficiency.

The technical problem is solved by the following technical scheme:

a glass substrate breaking machine comprises a front conveying device and a rear conveying device which are adjacent and used for conveying glass substrates, wherein the glass substrates are pre-cut with cutting dents, roller assemblies used for limiting the movement of the glass substrates are arranged above the front conveying device and the rear conveying device, the roller assemblies are arranged at the adjacent positions of the front conveying device and the rear conveying device, and the glass substrate breaking machine further comprises a telescopic piece enabling the rear conveying device to rotate around the adjacent positions.

In one embodiment, the front conveying device and the rear conveying device are both conveyor belt conveying devices and are provided with conveying crawler belts.

In one embodiment, the glass substrate further comprises a sensor assembly disposed adjacent to the substrate for detecting the position of the dent on the glass substrate.

In one embodiment, the sensor assembly includes a sensor mount and an image sensor.

In one embodiment, a base for supporting is arranged below the rear conveying device, and a support leg for supporting is arranged below the front conveying device.

In one embodiment, the telescopic member is an electric cylinder, one end of the electric cylinder is hinged with the rear conveying device, and the other end of the electric cylinder is hinged with the base.

In one embodiment, the roller assembly comprises two roller bases with adjustable heights and a roller arranged between the two roller bases.

In one embodiment, a roller assembly is arranged above one end of the rear conveying device far away from the abutting position.

In one embodiment, the surface layer of the roller is made of rubber material.

The beneficial effects of the utility model are that, the utility model discloses the object to be the glass substrate of the notched line of having carved on, glass substrate is under conveyor's conveying, and continuous forward movement, under drum assembly's control, glass substrate is restricted between drum assembly and conveyor, at this moment, when the extensible member when the shrink, drives back conveyor and rotates around adjoining the department to make glass substrate by the rupture. At this moment, the dent that needs glass substrate just in time is in preceding conveyor and back conveyor's the department of bordering on, and glass substrate's transfer rate can be controlled, the utility model discloses a time that the extensible member comes and goes once also can be controlled, when the glass substrate who takes the dent begins to get into the department of bordering on, the control extensible member begins to contract, when the extensible member contracts a certain position, the dent is as long as in the department of bordering on, for example just in time walk the central point of the department of bordering on, glass substrate is broken, and the extensible member begins to return to the normal position, and glass substrate can continue to move forward, carries out process on next step. The utility model discloses can need not control glass substrate and stop in order to break it, shorten the break time, can improve the efficiency of glass substrate rupture.

Drawings

Fig. 1 is a front view of the present invention;

FIG. 2 is a schematic structural view of the present invention;

fig. 3 is a control flow of the image sensor of the present invention;

fig. 4 is a control schematic diagram of the present invention;

FIG. 5 is a schematic view of the position of the glass substrate at which the glass substrate starts to break;

FIG. 6 is a schematic view of the position of the glass substrate after breaking;

fig. 7 is a schematic view of the position of the broken glass substrate in the home position.

In the figure: 1. a rear conveying device; 2. a front conveying device; 3. a glass substrate; 11. a machine base; 12. a telescoping member; 13. a conveying crawler; 14. a roller assembly; 15. a sensor assembly; 21. a support leg; 141. a roller base; 142. a drum; 151. a sensor holder; 152. an image sensor; 301. and cutting the dent.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

The directions of front, back and the like are the running directions of the conveying belt on the conveying device, but not the front and the back of the schematic diagram; the "adjacent place" is a local area where two devices are adjacent, for example, a front area and a rear area of 15cm, where two devices are adjacent and spaced apart by less than 2cm, and can be determined according to the moving speed of the glass substrate and the time required for the telescopic member to stretch and contract to break the glass substrate.

A glass substrate breaking machine as shown in fig. 1-2, comprising a front conveyor 2 and a rear conveyor 1 adjacent to each other for conveying a glass substrate 3, wherein the glass substrate 3 is a glass substrate previously cut with a cutting dent 301, roller assemblies 14 for limiting the movement of the glass substrate are arranged above the front conveyor 2 and the rear conveyor 1, the roller assemblies 14 are arranged at the adjacent positions of the conveyor 2 and the rear conveyor 1, and a telescopic member 12 for rotating the rear conveyor 1 around the adjacent positions is further included.

When the cutting dent 301 moves to the adjacent position, the telescopic part 12 contracts to drive the rear conveying device 1 to rotate, the roller assembly 14 presses a section of glass substrate to be broken to rotate, the glass substrate on the front conveying device 2 still keeps an original angle, the glass substrate 3 is broken at the cutting dent 301 position after rotating for a certain small angle because the glass substrate 3 is made of a brittle material, then the telescopic rod 12 extends to the original length, the rear conveying device 1 drives the broken section of glass substrate to rotate back to the original position, and in the process, the roller assembly 14 is used for applying downward pressure, the movement of the glass substrate 3 on the conveying device is not influenced, so that the glass substrate can be broken at the conveying speed, and the production efficiency is effectively improved.

Furthermore, the front conveying device 2 and the rear conveying device 1 are both conveying belt conveying devices and are provided with conveying crawler belts 13, so that a better friction effect can be achieved when the conveying belts are used for conveying, and the glass substrate 3 is prevented from slipping.

Furthermore, a sensor assembly 15 is provided adjacent to the glass substrate for detecting the position of the dent on the glass substrate, so as to assist the operation of the machine and improve the fault tolerance.

Further, the sensor assembly 15 includes a sensor holder 151 and an image sensor 152, and the image sensor 152 may be a CCD image sensor. The sensor can be used for assisting in adjusting the frequency of the device, and the fault tolerance rate is increased. As shown in fig. 3, the control logic of the image sensor issues a break signal when a cutting dent is recognized, for increasing the fault tolerance. It should be noted that, if the image sensor 152 is not provided, the apparatus can normally perform the breaking operation at a preset speed and operation interval.

Furthermore, a base 11 for supporting is arranged below the rear conveying device 1, and supporting legs 23 for supporting are arranged below the front conveying device 2, so that the same ground height is set, and the stable conveying of the glass substrate 3 is ensured.

Furthermore, the extensible member 12 is an electric cylinder, one end of the electric cylinder is hinged to the rear conveying device 1, the other end of the electric cylinder is hinged to the base 11, and the electric cylinder is electrically controlled and is more stable.

When the glass substrate 3 is broken, the action point of the external force from the pressing mechanism on the protruding part of the glass substrate is important, and the yield after the glass substrate 3 is broken is much better than the concentrated force under the action of the surface force, so that the reasonable arrangement of the roller assembly 14 and the selection of the material are very helpful to the yield.

Further, the roller assembly 14 includes two roller bases 141 with adjustable heights and a roller 142 disposed between the two roller bases, and the distance between the roller 142 and the surface of the conveyor belt 13 can be adjusted by the roller bases 141, so as to adapt to glass substrates with different thicknesses, thereby providing a suitable clamping force.

Furthermore, a roller assembly 14 is further disposed above the other end of the rear conveying device 1 away from the adjacent position, and the movement of the glass substrate 3 is better limited by the auxiliary fixation of the roller 142, so that the broken section of the glass substrate 3 can be smoother and more orderly to some extent.

Furthermore, the surface layer of the roller 142 is made of rubber, the glass substrate 3 is made of brittle material, the flexible material such as rubber can well prevent the glass substrate 3 from being crushed due to extrusion, and meanwhile, the rubber material and the glass material have a better friction factor, so that sufficient friction force is provided to prevent conveying from slipping.

And (3) producing the liquid crystal glass substrate by using an overflow down-draw method, wherein the glass substrate which continuously flows down needs to be cut according to the process size requirement, and is broken after the cutting is finished. In such a glass substrate production line, the glass substrate on the line needs to be moved at a fixed speed, so that the subsequent cutting and breaking need to be matched with the fixed speed. Use the utility model discloses a glass substrate fracturer installs in the assembly line, at first glass substrate 3 through preceding conveyor 2 earlier, then steadily carry back conveyor 1 on, whole in-process glass substrate 3 is in by cylinder 142 and 13 clamping actions of conveying track do not have the slip transportation down. When the cutting dent 301 moves to the adjacent position, the telescopic part 12 contracts to drive the rear conveying device 1 to rotate around the base 11, the roller 142 presses a section of glass substrate on the rear conveying device 1 to rotate, but the glass substrate on the front conveying device 2 still keeps the original angle, because the glass substrate 3 is a brittle material, after rotating a certain small angle, the glass substrate 3 will break at the cutting dent 301, then the telescopic rod 12 extends to the original length, and the rear conveying device 1 drives the broken section of glass substrate to rotate back to the original position.

In this breaking process, first, the cutting dents 301 are cut every a fixed distance M according to the length of the glass substrate 3 to be broken, the glass substrate is conveyed by the conveying device at a fixed speed V, the expansion and contraction time interval T1= M/V of the expansion and contraction member 12 is set, the start time of the first expansion and contraction is adjusted, and then the expansion and contraction is performed at a fixed time. The time of one-time compression and extension of the extensible member 12 is T2, in order to achieve a better breaking effect, the distance between the cutting dent 301 and the roller 142 when the extensible member starts to contract for the first time is L, the distance of L section is a buffer area, the broken glass substrate 3 can continuously move on the transmission belt 13 only by satisfying that T2 is less than or equal to L/V, and then the extensible member 12 performs one-time contraction and extension every T1 time to complete one-time breaking. Reciprocating like this, can carrying out the rupture operation under the prerequisite that does not influence the conveying speed of glass substrate 3, avoided stopping the condition of conveying then rupture, improve production efficiency greatly. On the other hand, if a faster speed of movement V is to be met, the starting point of the break can be arranged below the first roller, but this form of breaking force is not as rational as above, which may be relatively less effective.

Those of ordinary skill in the art will understand that: the discussion of any embodiment above is merely exemplary and is not intended to suggest that the scope of the application is limited to these examples; features from the above embodiments, or from different embodiments, may also be combined, steps may be implemented in any order, and there are many other variations of the different aspects of one or more embodiments in this application, as described above, which are not provided in detail for the sake of brevity.

It is intended that the one or more embodiments of the present application cover all such alternatives, modifications, and variations as fall within the broad scope of the present application. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit or scope of one or more embodiments of the present application are intended to be included within the scope of the present application.

Claims (9)

1. The glass substrate breaking machine is characterized by comprising a front conveying device (2) and a rear conveying device (1) which are adjacent to each other and used for conveying a glass substrate (3), wherein the glass substrate (3) is a glass substrate pre-cut with a cutting dent (301), roller assemblies (14) used for limiting the movement of the glass substrate are arranged above the front conveying device (2) and the rear conveying device (1), the roller assemblies (14) are arranged at the adjacent positions of the front conveying device (2) and the rear conveying device (1), and the glass substrate breaking machine further comprises telescopic pieces (12) enabling the rear conveying device (1) to rotate around the adjacent positions.

2. The glass substrate breaking machine according to claim 1, wherein the front conveyor (2) and the rear conveyor (1) are each a belt conveyor provided with a conveyor belt (13).

3. The glass substrate breaking machine according to claim 1, further comprising a sensor assembly (15) disposed adjacent to detect a position of a dent on the glass substrate.

4. The glass substrate breaking machine according to claim 3, wherein the sensor assembly (15) comprises a sensor holder (151) and an image sensor (152).

5. The glass substrate breaking machine according to claim 1, wherein a base (11) for support is provided below the rear conveyor (1), and a support leg (21) for support is provided below the front conveyor (2).

6. The glass substrate breaking machine according to claim 5, wherein the telescopic member (12) is an electric cylinder having one end hinged to the rear conveyor (1) and the other end hinged to the base (11).

7. The glass substrate breaking machine according to claim 1, wherein the roller assembly (14) comprises two roller bases (141) capable of height adjustment and a roller (142) disposed between the two roller bases.

8. The glass substrate breaking machine according to claim 1 or 7, wherein a roller assembly (14) is provided above an end of the rear conveying device (1) remote from the abutment.

9. The glass substrate breaking machine according to claim 7, wherein a surface layer of the roller (142) is a rubber material.

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