Glass production line cullet cleaning method and device

Abstract

The invention discloses a cullet cleaning method and device for a glass production line, and the method comprises the steps: arranging a horizontal conveying mechanism for receiving cullet below the glass production line, and arranging a plurality of photoelectric sensor groups between the horizontal conveying mechanism and the glass production line to form a strip-shaped photoelectric detection domain; cullet falling from the glass production line and cullet stacked on the bearing face of the horizontal conveying mechanism are detected through a strip-shaped photoelectric detection domain; and when the cullet which is in a falling state and downwards penetrates through the strip-shaped photoelectric detection domain triggers the cullet to penetrate through the photoelectric sensor group corresponding to the position, or the stacking height of the cullet on the bearing surface of the horizontal conveying mechanism reaches the arrangement height of the strip-shaped photoelectric detection domain, the slag removal action is automatically carried out. According to the cullet cleaning method and device for the glass production line, real-time monitoring of the production line and timely cleaning of the cullet are achieved through simple photoelectric detection on the basis of low power consumption, manual inspection is not needed, and stability and reliability are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of glass deep processing, and in particular to a method and device for cleaning broken glass from a glass production line. Background Art

[0002] Glass deep processing production lines, such as continuous tempering furnaces, homogenizing furnaces, wind grilles, etc., are generally large in scale and have a long overall length. During the processing, the most common abnormal situation is glass breakage. If the operator fails to detect the glass breakage in time and clean up the glass debris, it may affect the normal operation of the equipment. The accumulated glass debris may also cause subsequent glass breakage and damage to the transmission mechanism. Therefore, in order to maintain the normal operation of each link of the production line, the operator needs to conduct frequent inspections during the operation of the equipment to ensure that the glass breakage is discovered in time and effectively handled. However, the harsh on-site environment and the large scale of the production line restrict the timeliness and reliability of manual inspections. Summary of the invention

[0003] The purpose of the present invention is to provide a method and device for cleaning broken glass in a glass production line, which can realize timely cleaning of broken glass through simple photoelectric detection on the basis of low power consumption, does not require manual inspection, and has stability and reliability.

[0004] The technical solution adopted by the present invention is: a method for cleaning broken glass from a glass production line, wherein a horizontal conveying mechanism for receiving broken glass is arranged below the glass production line, and a plurality of photoelectric sensor groups are arranged between the horizontal conveying mechanism and the glass production line to form a strip-shaped photoelectric detection domain; Use the strip photoelectric detection area to detect the broken glass dropped from the glass production line and the broken glass accumulated on the bearing surface of the horizontal conveyor mechanism; When the broken glass in a falling state passes downward through the strip-shaped photoelectric detection domain and triggers the photoelectric sensor group corresponding to the passing position, or when the accumulation height of the broken glass on the carrying surface of the horizontal conveying mechanism reaches the layout height of the strip-shaped photoelectric detection domain, so that the accumulated broken glass passes upward through the strip-shaped photoelectric detection domain and triggers the photoelectric sensor group corresponding to the passing position, a trigger signal is transmitted to the control module; After receiving any trigger signal, the control module starts the horizontal conveying mechanism to operate once, and the horizontal conveying mechanism drives the broken glass carried thereon to move a certain distance, so that the broken glass moves with the horizontal conveying mechanism to its end and falls into the collecting mechanism.

[0005] As a preferred solution, the size of a single piece of glass is detected to obtain its width in the conveying direction of the glass production line, and the spacing between adjacent photoelectric sensor groups is adjusted to be greater than the width of the single piece of glass.

[0006] As a preferred solution, the weight value of the glass to be processed and the arrangement height and spacing of the photoelectric sensor group are preset, and when the glass to be processed enters the glass production line, the weight of the glass is determined according to the size of the single piece of glass obtained; If the weight of a single piece of glass is greater than the preset weight value, the layout height is lowered and / or the layout spacing between adjacent photoelectric sensor groups is reduced; if the weight of a single piece of glass is less than the preset weight value, the layout height is increased and / or the layout spacing between adjacent photoelectric sensor groups is increased.

[0007] As a preferred solution, when the glass moves along the conveying direction of the glass production line, the temperature value of each section that a single piece of glass passes through along the conveying direction of the glass production line is detected; Increase the layout spacing between adjacent photoelectric sensor groups in the interval with lower temperature values, and / or increase the layout height; decrease the layout spacing between adjacent photoelectric sensor groups in the interval with higher temperature values, and / or decrease the layout height.

[0008] As a preferred solution, the horizontal conveying mechanism is periodically started to move any point on its bearing surface by a distance s, and the distance s is greater than the spacing between two adjacent photoelectric sensor groups in the glass conveying direction.

[0009] A broken glass cleaning device for a glass production line, comprising: Horizontal conveying mechanism: arranged below the glass production line along the glass conveying direction, used to receive the broken glass dropped from the glass production line and drive the horizontal transfer of the broken glass; Collecting mechanism: at least one, located below the end of the horizontal conveying mechanism, for collecting the broken glass horizontally transferred and separated from the end of the horizontal conveying mechanism; Photoelectric sensor group: arranged at intervals along the glass conveying direction so as to form a continuous belt-shaped photoelectric detection area between the glass production line and the horizontal conveying mechanism, for detecting broken glass passing through the photoelectric detection area; Control module: used to receive feedback from the photoelectric sensor group, control the horizontal conveying mechanism to start when broken glass is detected falling or when it is detected that the accumulation height of the broken glass on the horizontal conveying mechanism reaches the layout height of the strip photoelectric detection area, drive the broken glass to move horizontally, and stop the horizontal conveying mechanism after conveying the fallen broken glass to the collection mechanism.

[0010] As a preferred solution, the light beam of the photoelectric sensor group forms an angle α with the vertical plane, 0°<α≤90°.

[0011] As a preferred solution, there are two collecting mechanisms, which are arranged at both ends of the horizontal conveying mechanism; The horizontal conveyor mechanism can convey the received cullet toward either end thereof.

[0012] As a preferred solution, it 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 adjusting the position of the photoelectric sensor group.

[0013] As a preferred solution, the photoelectric sensor group is a reflective photocell, a through-beam photocell or a light curtain.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The broken glass cleaning method of the glass production line can monitor the glass processing situation in the production line in real time, and automatically clean the slag when the glass breaks. The entire monitoring system has good real-time performance and a high degree of automation, which solves the problems of difficult inspections by operators and easy processing delays in the harsh environment of the existing equipment site, effectively reduces labor costs, and improves the intelligence and reliability of the equipment.

[0015] 2. The broken glass cleaning device of the glass production line is simple to lay out, does not need to be opened continuously, has low operating costs, and does not require manual inspection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall layout of the present invention; Figure 2 It is a schematic end view of the present invention; Figure 3 is a schematic diagram of broken glass in state one in the present invention; Figure 4 is a schematic diagram of the broken glass in the present invention in state two; Figure 5 is a schematic diagram of broken glass in state three in the present invention; Figure 6 It is a schematic diagram of the interval division in the present invention.

[0018] Figure numerals: 1. horizontal conveying mechanism, 2. glass production line, 3. collecting mechanism, 4. photoelectric sensor group, 400, strip-shaped photoelectric detection domain, 5. control module. DETAILED DESCRIPTION

[0019] The present invention is described in detail below by way of exemplary embodiments. However, it should be understood that, without further description, elements, structures and features in one embodiment may also be beneficially combined in other embodiments.

[0020] It should be noted that: unless otherwise defined, the technical terms or scientific terms used in this document shall have the usual meanings understood by people with ordinary skills in the field to which the invention belongs. The words "one", "an" or "the" and the like used in the patent application specification and claims of the present invention do not express quantity restrictions, but indicate the existence of at least one; the words "first", "second" and "third" used in this document shall not be regarded as restrictions on the order of components, but are only used to distinguish different components; words such as "include" or "comprise" and the like indicate that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, but do not exclude other elements or objects with the same function.

[0021] In order to more clearly describe the method and device for cleaning broken glass in the glass production line, Figure 1-6 Describe this embodiment: like Figure 1 , Figure 2 As shown, a method for cleaning broken glass from a glass production line is provided. The glass production line is specifically a continuous tempering furnace, a homogenizing furnace or a wind grille. If the tempered glass explodes or falls accidentally during processing in the continuous homogenizing furnace, the broken glass will fall from the gap at the lower end of the furnace body. When the broken glass generated by the glass production line 2 falls vertically, the following steps are used to handle it: A horizontal conveying mechanism 1 for receiving broken glass is provided below the glass production line 2, and a plurality of photoelectric sensor groups 4 are arranged between the horizontal conveying mechanism 1 and the glass production line 2 to form a strip-shaped photoelectric detection domain 400; the strip-shaped photoelectric detection domain 400 is used to detect broken glass dropped from the glass production line 2 and broken glass accumulated on the bearing surface of the horizontal conveying mechanism 1; When the broken glass in the falling state passes through the strip-shaped photoelectric detection area 400 downwards, triggering the photoelectric sensor group 4 corresponding to the position where it passes ( Figure 3 When the accumulated height of the broken glass on the carrying surface of the horizontal conveying mechanism 1 reaches the layout height of the strip-shaped photoelectric detection domain 400, the accumulated broken glass passes upward through the strip-shaped photoelectric detection domain 400 and triggers the photoelectric sensor group 4 corresponding to the passing position ( Figure 3 The trigger signal is transmitted to the control module 5; After receiving any trigger signal, the control module 5 starts the horizontal conveying mechanism 1 to operate once, and the horizontal conveying mechanism 1 drives the broken glass carried thereon to move a certain distance, so that the broken glass moves with the horizontal conveying mechanism 1 to its end and falls into the collecting mechanism 3.

[0022] In the above cleaning method, the horizontal conveying mechanism 1 can adopt a belt conveyor, and the start and stop of the belt conveyor and the length of a single start time are controlled by the control module 5. There is no need to detect the real-time position of the broken glass and the real-time status of the conveying mechanism, which is convenient to control and low in cost.

[0023] Since the specifications of the glass processed each time are different, the harm caused by the glass with lower weight and temperature is smaller, while the harm caused by the glass with heavy weight and high temperature is greater and needs to be cleaned more timely. In the above cleaning method, the layout spacing d of the adjacent photoelectric sensor groups 4 and the layout height h of the photoelectric sensor group 4 relative to the upper bearing surface of the horizontal conveying mechanism 1 can be adjusted according to the weight and temperature of the glass. The layout spacing d mainly affects the detection probability of the broken glass 202 in the falling state. The smaller the layout spacing d, the denser the layout of the sensors, and the easier it is to trigger the sensors when the broken glass falls, but at the same time, the power consumption of more sensors will increase, and the startup probability of the horizontal conveying mechanism 1 will increase relatively. The layout height h mainly affects the detection of the amount of glass accumulation. When the layout height h is low, the sensor can be triggered by a lower accumulation. When the glass is large or the temperature is high, the layout height can be reduced to avoid damage to the equipment due to untimely processing, but at the same time, the startup frequency of the horizontal conveying mechanism 1 will increase relatively. The power consumption and the response speed of the horizontal conveying mechanism are balanced in the following way: The size of a single piece of glass is detected to obtain its width in the conveying direction of the glass production line 2 , and the spacing between adjacent photoelectric sensor groups 4 is adjusted to be larger than the width of a single piece of glass, ensuring that the glass can be continuously detected by the photoelectric sensor groups 4 .

[0024] The weight value of the glass to be processed and the layout height and spacing of the photoelectric sensor groups 4 are preset. When the glass 201 to be processed enters the glass production line 2, the weight of the glass is judged according to the size of the acquired single piece of glass; if the weight of the single piece of glass is greater than the preset weight value, one of the two methods of lowering the layout height h and lowering the layout spacing d of adjacent photoelectric sensor groups 4 is selected, or both are selected; if the weight of the single piece of glass is less than the preset weight value, one of the two methods of increasing the layout height h and increasing the layout spacing d of adjacent photoelectric sensor groups 4 is selected, or both are selected.

[0025] See also Figure 6 When the glass moves along the conveying direction of the glass production line 2, the temperature value of each section (a1, a2, a3...) that a single piece of glass passes through along the conveying direction of the glass production line 2 is detected; The measures to deal with the high temperature interval are: increasing the layout spacing d of the adjacent photoelectric sensor groups 4 in the interval with lower temperature value, increasing the layout height h, either one of the two methods, or both; The measures for dealing with the low temperature interval are: reducing the layout spacing d of adjacent photoelectric sensor groups 4 in the interval with higher temperature values, reducing the layout height h, and either one of the two methods can be selected, or both can be selected.

[0026] See also Figure 5 , the horizontal conveying mechanism 1 is periodically started to move any point on its bearing surface by a distance s, and the distance s is greater than the distance between two adjacent photoelectric sensor groups 4 in the glass conveying direction. When the broken glass 202 is in the gap between two adjacent photoelectric sensor groups 4 when falling and is not detected in time, and the layout position of the photoelectric sensor group 4 is inconvenient to adjust, the horizontal conveying mechanism 1 can be started to drive the broken glass 202 to move horizontally by a distance s toward the collecting mechanism 3, so that the broken glass 202 moves from the gap and passes through a photoelectric sensor group 4, which is conducive to being detected in time, and is equivalent to increasing the detection range of the photoelectric sensor group 4.

[0027] A broken glass cleaning device for a glass production line, comprising: Horizontal conveying mechanism 1: arranged below the glass production line 2 along the glass conveying direction thereof, used to receive the broken glass dropped from the glass production line 2 and drive the broken glass to be transferred horizontally; Collecting mechanism 3: at least one, located below the end of the horizontal conveying mechanism 1, for collecting the broken glass horizontally transferred and separated from the end of the horizontal conveying mechanism 1; There are two collecting mechanisms 3, which are arranged at two ends of the horizontal conveying mechanism 1 respectively; the horizontal conveying mechanism 1 can convey the received broken glass toward any end thereof.

[0028] Photoelectric sensor group 4: arranged at intervals along the glass conveying direction so as to form a continuous belt-shaped photoelectric detection area between the glass production line 2 and the horizontal conveying mechanism 1, which is used to detect broken glass passing through the photoelectric detection area; see Figure 2 The photoelectric sensor group 4 is a reflective light eye, a beam light eye or a light curtain. The light beam of the photoelectric sensor group 4 forms an angle α with the vertical plane, 0°<α≤90°, that is, after the sensor is set, its light beam can be horizontal or inclined toward the bearing surface of the horizontal conveying mechanism 1. The inclined setting is suitable for working conditions with low detection sensitivity.

[0029] Control module 5: used to receive feedback from the photoelectric sensor group 4, and control the horizontal conveying mechanism 1 to start when it detects that broken glass has fallen or the accumulation height of the broken glass on the horizontal conveying mechanism has reached the layout height of the strip photoelectric detection area, drive the broken glass to move horizontally, and stop the horizontal conveying mechanism 1 after conveying the fallen broken glass to the collection mechanism 3.

[0030] Industrial camera 6: used to detect the size of a single piece of glass 201 and transmit the size data to the control module 5, and the control module 5 determines the weight of the glass; The temperature sensing probe 7 is arranged on the glass production line 2 , and is used to detect the temperature of the glass 201 and transmit the temperature data to the control module 5 .

[0031] Specifically, the control module 5 can be installed in the electric control cabinet of the equipment; the control module 5 includes a PLC, a main control mechanism, etc. The signal of the photoelectric sensor enters the PLC, and the PLC data is fed back to the main control mechanism (host computer) for processing to determine whether there is glass breakage. If so, the host computer sends an action instruction to the PLC, and the PLC controls the horizontal conveying mechanism 1 to perform a series of actions such as slag cleaning. The control means can adopt the existing method.

[0032] See also Figure 2 , and also includes a sensor bearing mechanism, which is used to bear and hold the photoelectric sensor group 4 between the glass production line 2 and the horizontal conveying mechanism 1, and to adjust the position of the photoelectric sensor group 4. The sensor bearing mechanism only needs to ensure that the position of each photoelectric sensor group 4 is adjustable, and its specific fixing method is arranged according to the specific application of the continuous tempering furnace, homogenizing furnace or air grille, and there are no more limitations. However, in order to avoid affecting the broken glass, the photoelectric sensor group 4 can be located on the two width sides of the horizontal conveying mechanism 1 on the horizontal plane, so as not to interfere with the falling and accumulation of broken glass.

[0033] The parts not described in detail in the above embodiments are prior art.

[0034] It should be noted that although the present invention is described by the above embodiments, the present invention may also have other various embodiments. Without departing from the spirit and scope of the present invention, it is obvious that those skilled in the art may make various corresponding changes and deformations to the present invention, but these changes and deformations should all fall within the scope of protection of the appended claims of the present invention and their equivalents.

Claims

1. A method for cleaning broken glass in a glass production line, characterized by: A horizontal conveying mechanism (1) for receiving broken glass is provided below the glass production line (2), and a plurality of photoelectric sensor groups (4) are arranged between the horizontal conveying mechanism (1) and the glass production line (2) to form a strip-shaped photoelectric detection domain; Using a strip-shaped photoelectric detection area to detect broken glass dropped from a glass production line (2) and broken glass accumulated on a bearing surface of a horizontal conveying mechanism (1); When the broken glass in a falling state passes downward through the strip-shaped photoelectric detection domain and triggers the photoelectric sensor group (4) corresponding to the passing position, or when the accumulation height of the broken glass on the carrying surface of the horizontal conveying mechanism (1) reaches the layout height of the strip-shaped photoelectric detection domain, causing the accumulated broken glass to pass upward through the strip-shaped photoelectric detection domain and trigger the photoelectric sensor group (4) corresponding to the passing position, a trigger signal is transmitted to the control module (5); After receiving any trigger signal, the control module (5) starts the horizontal conveying mechanism (1) to operate once, and the horizontal conveying mechanism (1) drives the broken glass carried thereon to move a certain distance, so that the broken glass moves with the horizontal conveying mechanism (1) to its end and falls into the collecting mechanism (3).

2. A method for cleaning broken glass in a glass production line according to claim 1, characterized in that: The size of a single piece of glass is detected to obtain its width in the conveying direction of the glass production line (2), and the spacing between adjacent photoelectric sensor groups (4) is adjusted so as to be greater than the width of the single piece of glass.

3. A method for cleaning broken glass in a glass production line according to claim 2, characterized in that: The weight value of the glass to be processed and the arrangement height and spacing of the photoelectric sensor group (4) are preset, and when the glass to be processed enters the glass production line (2), the weight of the glass is determined based on the size of the single piece of glass obtained; If the weight of a single piece of glass is greater than a preset weight value, the layout height is lowered, and / or the layout spacing between adjacent photoelectric sensor groups (4) is reduced; if the weight of a single piece of glass is less than the preset weight value, the layout height is increased, and / or the layout spacing between adjacent photoelectric sensor groups (4) is increased.

4. A method for cleaning broken glass in a glass production line according to claim 1, characterized in that: When the glass is moving along the conveying direction of the glass production line (2), the temperature value of each section that a single piece of glass passes through along the conveying direction of the glass on the glass production line (2) is detected; The arrangement spacing between adjacent photoelectric sensor groups (4) in the interval with lower temperature values ​​is increased, and / or the arrangement height is increased; the arrangement spacing between adjacent photoelectric sensor groups (4) in the interval with higher temperature values ​​is decreased, and / or the arrangement height is decreased.

5. The method for cleaning broken glass in a glass production line according to claim 1, characterized in that: The horizontal conveying mechanism (1) is periodically started to move any point on its bearing surface by a distance s, wherein the distance s is greater than the spacing between two adjacent photoelectric sensor groups (4) in the glass conveying direction.

6. A broken glass cleaning device for a glass production line, characterized in that: include: Horizontal conveying mechanism (1): arranged below the glass production line (2) along the glass conveying direction thereof, and used for receiving broken glass dropped from the glass production line (2) and driving the horizontal transfer of the broken glass; A collecting mechanism (3): at least one, located below the end of the horizontal conveying mechanism (1), and used to collect the broken glass horizontally transferred and separated from the end of the horizontal conveying mechanism (1); Photoelectric sensor group (4): arranged at intervals along the glass conveying direction so as to form a continuous belt-shaped photoelectric detection area between the glass production line (2) and the horizontal conveying mechanism (1), and used for detecting broken glass passing through the photoelectric detection area; A control module (5) is used to receive feedback from the photoelectric sensor group (4), and control the horizontal conveying mechanism (1) to start when it detects that broken glass has fallen or when it detects that the pile height of broken glass on the horizontal conveying mechanism (1) reaches the layout height of the strip photoelectric detection domain, so as to drive the broken glass to move horizontally, and stop the horizontal conveying mechanism (1) after conveying the fallen broken glass to the collection mechanism (3).

7. A broken glass cleaning device for a glass production line according to claim 6, characterized in that: The light beam of the photoelectric sensor group (4) forms an angle α with the vertical plane, 0°<α≤90°.

8. The broken glass cleaning device for a glass production line according to claim 6, characterized in that: There are two collecting mechanisms (3), which are arranged at two ends of the horizontal conveying mechanism (1); The horizontal conveying mechanism (1) can convey the received broken glass toward either end thereof.

9. The broken glass cleaning device for a glass production line according to claim 6, characterized in that: It also comprises a sensor carrying mechanism, which is used 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).

10. The broken glass cleaning device for a glass production line according to claim 6, characterized in that: The photoelectric sensor group (4) is a reflective photocell, a directed photocell or a light curtain.

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