A method and apparatus for cleaning broken glass in a glass production line

Abstract

A glass production line broken glass cleaning method and device, wherein the cleaning method comprises setting a horizontal conveying mechanism for receiving broken glass below the glass production line, arranging a plurality of photoelectric sensor groups between the horizontal conveying mechanism and the glass production line to form a belt-shaped photoelectric detection domain; using the belt-shaped photoelectric detection domain to detect the broken glass falling from the glass production line and the broken glass accumulated on the horizontal conveying mechanism carrying surface; when the broken glass in the falling state passes through the belt-shaped photoelectric detection domain downward and triggers the photoelectric sensor group corresponding to the passing position, or the accumulation height of the broken glass on the horizontal conveying mechanism carrying surface reaches the arrangement height of the belt-shaped photoelectric detection domain, the slag cleaning action is automatically performed. The glass production line broken glass cleaning method and device realize real-time monitoring of the production line and timely cleaning of the broken glass through simple photoelectric detection on the basis of low power consumption, without manual inspection, and have stability and reliability.

Description

Technical Field

[0001] This invention relates to the field of glass deep processing technology, specifically to a method and apparatus for cleaning broken glass in a glass production line. Background Technology

[0002] Glass deep-processing production lines, such as continuous tempering furnaces, homogenizing furnaces, and air ducts, are generally large-scale with long overall lengths. The most common anomaly during processing is glass breakage. If operators fail to detect and clean up glass shards promptly, it can affect the normal operation of the equipment. Accumulated glass shards can also lead to subsequent glass breakage and damage to the conveying mechanism. Therefore, to maintain the normal operation of each link in the production line, operators need to conduct frequent inspections during equipment operation to ensure timely detection and effective handling of glass breakage. However, the harsh working environment and the large scale of the production line limit the timeliness and reliability of manual inspections. Summary of the Invention

[0003] The purpose of this invention is to propose a method and apparatus for cleaning broken glass in a glass production line. This method achieves timely cleaning of broken glass through simple photoelectric detection with low power consumption, eliminating the need for manual inspection and exhibiting stability and reliability.

[0004] The technical solution adopted in this invention is: a method for cleaning broken glass in a glass production line, wherein a horizontal conveying mechanism for receiving broken glass is set below the glass production line, and multiple photoelectric sensor groups are arranged between the horizontal conveying mechanism and the glass production line to form a strip-shaped photoelectric detection field.

[0005] A strip-shaped photoelectric detection field is used to detect broken glass falling from the glass production line and broken glass accumulating on the bearing surface of the horizontal conveyor mechanism;

[0006] When broken glass in a falling state passes downward through the strip photoelectric detection field and triggers the photoelectric sensor group corresponding to its passing position, or when the accumulated height of broken glass on the horizontal conveyor bearing surface reaches the layout height of the strip photoelectric detection field, causing the accumulated broken glass to pass upward through the strip photoelectric detection field and trigger the photoelectric sensor group corresponding to its passing position, the trigger signal is transmitted to the control module.

[0007] After receiving any trigger signal, the control module starts the horizontal conveying mechanism to operate once. The horizontal conveying mechanism moves the broken glass it carries a certain distance, so that the broken glass moves with the horizontal conveying mechanism to its end and falls into the collection mechanism.

[0008] As a preferred embodiment, the dimensions of a single piece of glass are detected to obtain its width in the conveying direction of the glass production line, and the spacing is adjusted so that the distance between adjacent photoelectric sensor groups is greater than the width of the single piece of glass.

[0009] As a preferred option, the weight value of the glass to be processed and the arrangement height and spacing of the photoelectric sensor group are preset. When the glass to be processed enters the glass production line, the weight of the glass is determined based on the size of the single piece of glass.

[0010] If the weight of a single piece of glass is greater than the preset weight value, reduce the deployment height and / or reduce the deployment spacing between adjacent photoelectric sensor groups; if the weight of a single piece of glass is less than the preset weight value, increase the deployment height and / or increase the deployment spacing between adjacent photoelectric sensor groups.

[0011] As a preferred option, when the glass moves along the conveying direction on the glass production line, the temperature value of each piece of glass is detected in each section that the glass passes through along the glass conveying direction on the glass production line.

[0012] Increase the spacing between adjacent photoelectric sensor groups in sections with lower temperature values, and / or increase the installation height; decrease the spacing between adjacent photoelectric sensor groups in sections with higher temperature values, and / or decrease the installation height.

[0013] As a preferred embodiment, the horizontal conveying mechanism is periodically activated, causing any point on its bearing surface to move a distance s, where the distance s is greater than the distance between two adjacent photoelectric sensor groups in the glass conveying direction.

[0014] A glass breakage cleaning device for a glass production line, comprising:

[0015] Horizontal conveying mechanism: It is installed below the glass conveying direction of the glass production line to receive broken glass falling from the glass production line and to drive the broken glass to move horizontally.

[0016] Collection mechanism: at least one, located below the end of the horizontal conveying mechanism, for collecting broken glass that is horizontally transferred and detached from the end of the horizontal conveying mechanism;

[0017] Photoelectric sensor array: Arranged at intervals along the glass conveying direction to form a continuous strip-shaped photoelectric detection field between the glass production line and the horizontal conveying mechanism, used to detect broken glass passing through the photoelectric detection area;

[0018] Control module: Used to receive feedback from the photoelectric sensor group, and control the horizontal conveyor to start when broken glass is detected falling or when the height of broken glass accumulation on the horizontal conveyor reaches the deployment height of the strip photoelectric detection area, so as to drive the broken glass to move horizontally, and stop the horizontal conveyor after the fallen broken glass is transported to the collection mechanism.

[0019] As a preferred embodiment, the beam of the photoelectric sensor group forms an angle α with the vertical plane, where 0° < α ≤ 90°.

[0020] As a preferred option, there are two collection mechanisms, which are respectively arranged at both ends of the horizontal conveying mechanism;

[0021] The horizontal conveyor can transport the received broken glass toward either end.

[0022] As a preferred embodiment, the system also includes a sensor carrying mechanism for carrying and holding the photoelectric sensor group between the glass production line and the horizontal conveying mechanism, and for adjusting the position of the photoelectric sensor group.

[0023] As a preferred option, the photoelectric sensor group is a reflective photoelectric sensor, a through-beam photoelectric sensor, or a light curtain.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] 1. The glass breakage cleaning method in the glass production line can monitor the glass processing status in real time and automatically clean up the shards when glass breaks. The entire monitoring system has good real-time performance and a high degree of automation, solving the problems of difficult operator inspection and processing delays in harsh on-site environments, effectively reducing labor costs and improving the intelligence and reliability of the equipment.

[0026] 2. The glass breakage cleaning device for the glass production line is simple to set up, does not need to be continuously operated, has low operating costs, and does not require manual inspection. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the overall layout of the present invention;

[0029] Figure 2 This is a schematic diagram of the end face of the present invention;

[0030] Figure 3 This is a schematic diagram of broken glass in state one in this invention;

[0031] Figure 4 This is a schematic diagram of the broken glass in state two in this invention;

[0032] Figure 5 This is a schematic diagram of the broken glass in state three in this invention;

[0033] Figure 6 This is a schematic diagram of interval division in this invention.

[0034] Reference numerals: 1. Horizontal conveying mechanism; 2. Glass production line; 3. Collection mechanism; 4. Photoelectric sensor group; 400. Strip photoelectric detection field; 5. Control module. Detailed Implementation

[0035] The present invention will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0036] It should be noted that, unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "a," "an," or "the," etc., used in the specification and claims of this patent application do not express a limitation on quantity, but rather indicate the presence of at least one; the terms "first," "second," and "third," as used herein, should not be considered as a limitation on the order of components, but are merely for distinguishing different components; the terms "comprising" or "including," etc., indicate that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, but do not exclude other elements or objects having the same function.

[0037] To more clearly describe the glass breakage cleaning method and equipment of this glass production line, in conjunction with the attached... Figure 1-6 This embodiment is described as follows:

[0038] like Figure 1 , Figure 2 As shown, a method for cleaning broken glass in a glass production line is described. The glass production line is specifically a continuous tempering furnace, a homogenizing furnace, or an air grid. If tempered glass spontaneously explodes or accidentally falls during processing in the continuous homogenizing furnace, broken glass will fall from the gap at the bottom of the furnace body. When broken glass from the glass production line 2 falls vertically, the following steps are used to handle it:

[0039] A horizontal conveying mechanism 1 for receiving broken glass is set below the glass production line 2. Multiple photoelectric sensor groups 4 are arranged between the horizontal conveying mechanism 1 and the glass production line 2 to form a strip photoelectric detection field 400. The strip photoelectric detection field 400 is used to detect broken glass falling from the glass production line 2 and broken glass accumulated on the bearing surface of the horizontal conveying mechanism 1.

[0040] When the broken glass in the falling state passes downward through the strip photoelectric detection field 400 and triggers the photoelectric sensor group 4 corresponding to its passing position ( Figure 3(as shown in the state), or when the height of the accumulated broken glass on the bearing surface of the horizontal conveyor 1 reaches the deployment height of the strip photoelectric detection field 400, causing the accumulated broken glass to pass upward through the strip photoelectric detection field 400 and trigger the photoelectric sensor group 4 corresponding to the passing position ( Figure 3 (as shown in the diagram), the trigger signal will be transmitted to the control module 5;

[0041] After receiving any trigger signal, the control module 5 starts the horizontal conveying mechanism 1 to operate once. The horizontal conveying mechanism 1 moves the broken glass it carries a certain distance, so that the broken glass moves with the horizontal conveying mechanism 1 to its end and falls into the collection mechanism 3.

[0042] In the above cleaning method, the horizontal conveying mechanism 1 can be a belt conveyor. The start and stop of the belt conveyor and the duration of a single start are controlled by the control module 5. It is not necessary to detect the real-time position of the broken glass or the real-time status of the conveying mechanism, which is convenient to control and low in cost.

[0043] Because the specifications of the glass processed each time are different, glass with lower weight and temperature poses less damage, while glass with higher weight and temperature poses greater damage and requires more timely cleaning. In the cleaning method described above, the spacing d between adjacent photoelectric sensor groups 4 and the height h of the photoelectric sensor group 4 relative to the upper bearing surface of the horizontal conveyor mechanism 1 can be adjusted according to the weight and temperature of the glass. The spacing d mainly affects the detection probability of broken glass 202 in the falling state. The smaller the spacing d, the denser the sensor arrangement, and the easier it is to trigger the sensor when broken glass falls. However, more sensors will increase power consumption, and the probability of starting the horizontal conveyor mechanism 1 will increase relatively. The height h mainly affects the detection of glass accumulation. When the height h is low, a small accumulation can trigger the sensor. When the glass is large or the temperature is high, the height can be reduced to avoid damage to the equipment due to untimely processing. However, this will increase the starting frequency of the horizontal conveyor mechanism 1. The following method is used to balance power consumption and the response speed of the horizontal conveyor mechanism:

[0044] The dimensions of a single piece of glass are detected to obtain its width in the conveying direction of the glass production line 2. The spacing between adjacent photoelectric sensor groups 4 is adjusted to be greater than the width of the single piece of glass, ensuring that the glass can be continuously detected by the photoelectric sensor groups 4.

[0045] The weight of the glass to be processed and the arrangement height and spacing of the photoelectric sensor group 4 are preset. When the glass 201 to be processed enters the glass production line 2, the weight of the glass is determined based on the size of the single glass piece. If the weight of the single glass piece is greater than the preset weight value, one of the following two methods can be selected, or both can be selected, from reducing the arrangement height h and reducing the arrangement spacing d of the adjacent photoelectric sensor group 4. If the weight of the single glass piece is less than the preset weight value, one of the following two methods can be selected, or both can be selected, from increasing the arrangement height h and increasing the arrangement spacing d of the adjacent photoelectric sensor group 4.

[0046] See Figure 6 When the glass moves along the conveying direction in glass production line 2, the temperature value of a single piece of glass is detected in each section (a1, a2, a3...) that it passes through in glass production line 2 along the glass conveying direction;

[0047] The countermeasures for high-temperature sections include: increasing the spacing d between adjacent photoelectric sensor groups 4 in sections with lower temperature values, and increasing the installation height h. Either one of these two methods can be chosen, or both can be selected simultaneously.

[0048] The countermeasures for the low temperature range include: reducing the spacing d between adjacent photoelectric sensor groups 4 in the high temperature range, and reducing the installation height h. Either one of these two methods can be chosen, or both can be selected.

[0049] See Figure 5 The horizontal conveying mechanism 1 is periodically activated, causing any point on its bearing surface to move a distance s, where s is greater than the distance between two adjacent photoelectric sensor groups 4 in the glass conveying direction. If broken glass 202 falls within the gap between two adjacent photoelectric sensor groups 4 and is not detected in time, and the placement of the photoelectric sensor groups 4 is inconvenient to adjust, the horizontal conveying mechanism 1 can be activated to move the broken glass 202 horizontally towards the collecting mechanism 3 a distance s. This allows the broken glass 202 to move through the gap and pass through a photoelectric sensor group 4, facilitating timely detection and effectively increasing the detection range of the photoelectric sensor group 4.

[0050] A glass breakage cleaning device for a glass production line, comprising:

[0051] Horizontal conveying mechanism 1: It is set below the glass conveying direction of the glass production line 2 and is used to receive broken glass falling from the glass production line 2 and to drive the broken glass to move horizontally.

[0052] Collection mechanism 3: at least one, located below the end of the horizontal conveying mechanism 1, for collecting broken glass that is horizontally transferred and detached from the end of the horizontal conveying mechanism 1;

[0053] There are two collection mechanisms 3, which are respectively arranged at both ends of the horizontal conveying mechanism 1; the horizontal conveying mechanism 1 can convey the received broken glass towards either end.

[0054] Photoelectric sensor group 4: Arranged at intervals along the glass conveying direction to form a continuous strip-shaped photoelectric detection field between the glass production line 2 and the horizontal conveying mechanism 1, used to detect broken glass passing through the photoelectric detection area; see reference Figure 2 The photoelectric sensor group 4 is a reflective photoelectric sensor, a through-beam photoelectric sensor, or a light curtain. The beam of the photoelectric sensor group 4 forms an angle α with the vertical plane, where 0° < α ≤ 90°. That is, after the sensor is set, its beam can be horizontal or tilted towards the bearing surface of the horizontal conveying mechanism 1. The tilted setting is suitable for use in working conditions where the detection sensitivity is not high.

[0055] Control module 5: Used to receive feedback from photoelectric sensor group 4. When it detects broken glass falling or when it detects that the height of broken glass accumulation on the horizontal conveyor reaches the deployment height of the strip photoelectric detection area, it controls the horizontal conveyor 1 to start, drives the broken glass to move horizontally, and then stops the horizontal conveyor 1 after transporting the fallen broken glass to the collection mechanism 3.

[0056] Industrial camera 6: used to detect the dimensions of a single piece of glass 201 and transmit the dimension data to the control module 5, which then determines the weight of the glass.

[0057] Temperature sensor 7: Installed on the glass production line 2, used to detect the temperature of glass 201 and transmit the temperature data to the control module 5.

[0058] Specifically, control module 5 can be installed in the electrical control cabinet of the equipment; control module 5 includes PLC, main control mechanism, etc. The signal of photoelectric sensor enters PLC, and PLC data is fed back to main control mechanism (host computer) for processing to determine whether there is glass breakage. If so, the host computer sends an action command to PLC, and PLC controls horizontal conveying mechanism 1 to perform a series of actions such as cleaning slag. This control method can be adopted using existing methods.

[0059] See Figure 2 It also includes a sensor carrying mechanism for carrying and holding the photoelectric sensor group 4 between the glass production line 2 and the horizontal conveying mechanism 1, and for adjusting the position of the photoelectric sensor group 4. The sensor carrying mechanism only needs to ensure that the position of each photoelectric sensor group 4 is adjustable. Its specific fixing method depends on the specific application of the continuous tempering furnace, homogenizing furnace or air grid, and there are no further limitations. However, in order to avoid the impact on broken glass, the photoelectric sensor group 4 can be located on both sides of the width of the horizontal conveying mechanism 1 on the horizontal plane, so as not to interfere with the falling and accumulation of broken glass.

[0060] The parts not described in detail in the above embodiments are existing technologies.

[0061] It should be noted that although the present invention has been described through the above embodiments, the present invention may have many other embodiments. Without departing from the spirit and scope of the present invention, those skilled in the art can obviously make various corresponding changes and modifications to the present invention, but all such changes and modifications should fall within the scope of protection of the appended claims and their equivalents.

Claims

1. A method of cullet cleaning for a glass production line, characterized by: A horizontal conveying mechanism (1) for receiving the broken glass is arranged below the glass production line (2), the horizontal conveying mechanism (1) is a belt conveyor, a plurality of photoelectric sensor groups (4) are arranged between the horizontal conveying mechanism (1) and the glass production line (2) to form a belt-shaped photoelectric detection field; the photoelectric sensor groups (4) are arranged at intervals along the glass conveying direction; The belt-shaped photoelectric detection field is used to detect the broken glass falling from the glass production line (2) and the broken glass accumulated on the carrying surface of the horizontal conveying mechanism (1); When the broken glass in the falling state passes through the belt-shaped photoelectric detection field downward and triggers the photoelectric sensor group (4) corresponding to the passing position, or the accumulation height of the broken glass on the carrying surface of the horizontal conveying mechanism (1) reaches the arrangement height of the belt-shaped photoelectric detection field, the accumulated broken glass passes through the belt-shaped photoelectric detection field upward and triggers the photoelectric sensor group (4) corresponding to the passing position, a signal is transmitted to the control module (5); After receiving any trigger signal, the control module (5) starts the horizontal conveying mechanism (1) to run once, and the horizontal conveying mechanism (1) drives the broken glass received thereon to move a certain distance, so that the broken glass moves to the end of the horizontal conveying mechanism (1) and falls into the collecting mechanism (3); The size of the single glass is detected to obtain the width of the single glass in the conveying direction of the glass production line (2), and the interval between adjacent photoelectric sensor groups (4) is adjusted to be greater than the width of the single glass; The weight value of the glass to be processed, the arrangement height and the interval of the photoelectric sensor groups (4) are preset, and when the glass to be processed enters the glass production line (2), the weight of the glass is determined according to the size of the single glass; If the weight of the single glass is greater than the preset weight value, the arrangement height is lowered, and / or the arrangement interval of adjacent photoelectric sensor groups (4) is lowered; if the weight of the single glass is less than the preset weight value, the arrangement height is increased, and / or the arrangement interval of adjacent photoelectric sensor groups (4) is increased; When the glass moves in the conveying direction of the glass production line (2), the temperature value of the single glass passing through each interval in the conveying direction of the glass production line (2) is detected; The arrangement interval and / or the arrangement height of the photoelectric sensor groups (4) in the interval with a lower temperature value are increased, and the arrangement interval and / or the arrangement height of the photoelectric sensor groups (4) in the interval with a higher temperature value are decreased.

2. A glass production line cullet cleaning method according to claim 1, characterized in that: The horizontal conveying mechanism (1) is periodically started to move a distance s at any point on the carrying surface, and the distance s is greater than the interval between adjacent photoelectric sensor groups (4) in the glass conveying direction.

3. A glass production line cullet cleaning device characterized by, The glass production line broken glass cleaning method of claim 1 comprises: A horizontal conveying mechanism (1) is arranged below the glass production line (2) in the glass conveying direction of the glass production line (2) to receive the broken glass falling from the glass production line (2) and drive the horizontal transfer of the broken glass; A collecting mechanism (3) is arranged below the end of the horizontal conveying mechanism (1) to collect the broken glass transferred horizontally and separated from the end of the horizontal conveying mechanism (1); Photoelectric sensor group (4): arranged at intervals along the glass conveying direction to form a continuous strip-shaped photoelectric detection area between the glass production line (2) and the horizontal conveying mechanism (1), for detecting the glass cullet passing through the photoelectric detection area; Control module (5): for receiving feedback from the photoelectric sensor group (4), and for controlling the horizontal conveying mechanism (1) to start when it is detected that glass cullet has fallen or that the height of the accumulated glass cullet on the horizontal conveying mechanism (1) reaches the height of the strip-shaped photoelectric detection area, to drive the glass cullet to move horizontally and to stop the horizontal conveying mechanism (1) after the glass cullet is conveyed to the collecting mechanism (3).

4. A glass production line cullet cleaning device according to claim 3, characterised in that: The light beam of the photoelectric sensor group (4) forms an angle α with the vertical plane, 0° < α ≤ 90°.

5. A glass production line cullet cleaning device according to claim 3, characterized in that: The collecting mechanism (3) has two, arranged at the two ends of the horizontal conveying mechanism (1) respectively; The horizontal conveying mechanism (1) can convey the received glass cullet towards either end thereof.

6. A glass production line cullet cleaning device according to claim 3, characterized in that: Further comprising a sensor bearing mechanism for bearing and maintaining the photoelectric sensor group (4) between the glass production line (2) and the horizontal conveying mechanism (1), and for adjusting the position of the photoelectric sensor group (4).

7. A glass production line cullet cleaning device according to claim 3, characterized in that: The photoelectric sensor group (4) is a reflective light eye, a through-beam light eye or a light curtain.

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