CN213600015U - Last piece platform advances stove position detection device based on multiple light eye - Google Patents
Last piece platform advances stove position detection device based on multiple light eye Download PDFInfo
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- CN213600015U CN213600015U CN202022506415.XU CN202022506415U CN213600015U CN 213600015 U CN213600015 U CN 213600015U CN 202022506415 U CN202022506415 U CN 202022506415U CN 213600015 U CN213600015 U CN 213600015U
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Abstract
The utility model discloses a feeding platform furnace-entering position detection device based on multiple light holes, which comprises a furnace-front detection module arranged on a sheet placing platform, wherein the sheet placing platform is arranged at a furnace-entering opening of a heating furnace; the sheet placing table comprises a rack and a sheet feeding roller shaft group, the sheet feeding roller shaft group is arranged on the top surface of the rack, and the furnace front detection module is arranged at one end, close to the heating furnace, of the rack; the stokehole detection module comprises a correlation photoelectric switch and a diffuse reflection photoelectric switch; the opposite-emitting photoelectric switch comprises an emitting part and a receiving part, the emitting part is arranged on one side of the rack, the receiving part is arranged on the other side of the rack, the emitting part and the receiving part are arranged oppositely, and a connecting line between the emitting part and the receiving part is perpendicular to the conveying direction of the upper piece roller shaft group; diffuse reflection photoelectric switch sets up in the below of last piece roller group, and diffuse reflection photoelectric switch's emission end's direction is up. The device for detecting the position in front of the glass heating furnace solves the problem that glass collides with the furnace due to the running of the glass after the glass enters the heating furnace.
Description
Technical Field
The utility model relates to a toughened glass makes technical field, especially a last piece platform advances stove position detection device based on multiple light eye.
Background
The principle of the physical tempering method of glass is that the glass is sent to a heating furnace to be heated to a proper temperature and then sent to a flat air grid to be rapidly cooled, so that the surface of the glass is rapidly contracted to generate compressive stress, while the middle layer of the glass is cooled slowly and cannot be contracted in time, so that tensile stress is formed, and the glass obtains high strength. When glass is conveyed, the position of the glass can be deviated, and the glass can collide with the furnace due to the position of the glass after the glass enters the heating furnace because the existing equipment cannot accurately judge whether the glass is deviated or not.
SUMMERY OF THE UTILITY MODEL
In view of the above, an object of the present invention is to provide a device for detecting the position of a feeding platform in a furnace based on multiple optical holes, which solves the problem of collision of glass due to the running of glass after the glass enters the heating furnace.
To achieve the purpose, the utility model adopts the following technical proposal: a device for detecting the furnace feeding position of a loading platform based on multiple optical eyes comprises a furnace front detection module arranged on a sheet placing platform, wherein the sheet placing platform is arranged at a furnace feeding opening of a heating furnace;
the sheet placing table comprises a rack and an upper sheet roller shaft group, the upper sheet roller shaft group is arranged on the top surface of the rack and used for conveying glass to the heating furnace, and the furnace front detection module is arranged at one end, close to the heating furnace, of the rack;
the stokehole detection module comprises a correlation photoelectric switch and a diffuse reflection photoelectric switch;
the opposite-type photoelectric switch comprises an emitting part and a receiving part, the emitting part is arranged on one side of the rack, the receiving part is arranged on the other side of the rack, the emitting part and the receiving part are arranged oppositely, and a connecting line between the emitting part and the receiving part is perpendicular to the conveying direction of the upper piece roller shaft group;
the diffuse reflection photoelectric switch is arranged below the upper piece roller shaft group, and the emitting end of the diffuse reflection photoelectric switch faces upwards.
For example, the stokehole detection module further comprises a mounting frame, the mounting frame is mounted at one end, close to the heating furnace, of the rack and located below the upper roller shaft group, the length direction of the mounting frame is perpendicular to the conveying direction of the upper roller shaft group, and a plurality of diffuse reflection photoelectric switches are distributed on the top surface of the mounting frame along the length direction at intervals.
It is worth to say that the upper piece roller shaft group comprises a first roller shaft, a second roller shaft and a third roller shaft which are distributed at intervals, the first roller shaft, the second roller shaft and the third roller shaft are arranged at one end of the rack, and the distances between the first roller shaft, the second roller shaft and the third roller shaft and the furnace inlet of the heating furnace are gradually increased;
the mounting bracket set up in between second roller and the third roller.
Optionally, the correlation type photoelectric switch is disposed between the second roller shaft and the third roller shaft.
Specifically, the piece placing table further comprises a driving mechanism and a piece feeding encoder, the piece feeding roller shaft group is driven by the driving mechanism, and a grating of the piece feeding encoder faces a rotating shaft of the driving mechanism.
Preferably, still include stokehold preliminary examination module, stokehold preliminary examination module set up in put the middle part of piece platform, stokehold preliminary examination module is used for detecting glass's the off-position condition.
For example, the distance between the diffuse reflection photoelectric switch and the top surface of the upper sheet roller shaft group is not less than 150 mm.
It is worth to say that the outer surface of the stokehole detection module is provided with a heat insulation device.
The utility model has the advantages that: the device for detecting the furnace feeding position of the loading platform based on the multiple light holes can detect whether the glass entering the heating furnace from the loading platform runs off the furnace by using the furnace front detection module, so that the glass is prevented from colliding with a furnace frame of the heating furnace when entering the heating furnace.
When the glass is not laminated, the receiving part of the opposite type photoelectric switch receives the light beam emitted by the emitting part, and the emitting end of the diffuse reflection photoelectric switch does not receive the diffuse reflection light beam because the emitting end of the diffuse reflection photoelectric switch is not shielded. When the glass is fed, the glass is conveyed to the heating furnace through the feeding roller shaft group, when the head end of the glass passes through the position set by the correlation photoelectric switch, the light beam emitted from the emitting part of the correlation photoelectric switch to the receiving part is shielded by the glass, the receiving part cannot receive the light beam, the light beam is the starting point of the glass passing, after the correlation photoelectric switch detects the starting point position of the glass, the upper computer controls the furnace door of the heating furnace to be opened, the glass smoothly enters the heating furnace, when the tail end of the glass leaves the position set by the correlation photoelectric switch, the receiving part receives the light beam emitted from the emitting part again, the moment is the end point of the glass passing, after the correlation photoelectric switch detects the end point position of the glass, the upper computer controls the furnace door of the heating furnace to be closed, the furnace then heats the glass. The correlation photoelectric switch can obtain the measured length of the glass by detecting the time of the starting point and the end point of the glass and combining the conveying speed of the upper piece roller shaft group, then the running position condition of the glass in the heating furnace can be deduced by comparing the measured length with the actual length of the glass, and then the running position of the glass is corrected. Because the head end and the tail end of the glass under the normal conveying condition are both vertical to the conveying direction of the upper piece roller shaft group, the obtained measurement length can effectively reflect whether the glass is positioned in the heating furnace or not only when the connecting line between the transmitting part and the receiving part is vertical to the conveying direction of the upper piece roller shaft group. When the surface of the glass is uneven, errors can occur in detection of the correlation photoelectric switch, the diffuse reflection photoelectric switch acts, the diffuse reflection photoelectric switch emits light beams to the glass passing through from bottom to top and collects the light beams reflected in a diffuse manner, so that the current position of the glass is detected, then the opening and closing of a furnace door of the heating furnace can be controlled through an upper computer by detecting the starting point and the end point of the glass, the measured length can be obtained at the same time, and then the measured length is compared with the actual length of the glass, so that the displacement condition of the glass in the heating furnace is deduced.
Drawings
FIG. 1 is a top view of a sheet placement table and a heating furnace according to an embodiment of the present invention;
FIG. 2 is a right side view of a slide table in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an embodiment of the present invention.
Wherein: 1, placing a piece platform; 11, feeding a roller shaft group; 111 a first roller shaft; 112 a second roller shaft; 113 a third roller shaft; 12 a chip-on-chip encoder; 13 a rack; 14 a drive mechanism; 2, heating the furnace; 21, entering a furnace mouth; 3, a furnace front detection module; 31 correlation type photoelectric switch; 311 an emitting part; 312 a receiving part; 32 diffuse reflection photoelectric switch; 33, mounting a frame; 4 furnace front pre-detection module.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between descriptive features, non-sequential, non-trivial and non-trivial.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The following describes, with reference to fig. 1 to 3, a device for detecting a furnace entry position of a loading platform based on multiple optical apertures according to an embodiment of the present invention, which includes a detection module 3 arranged in front of a loading platform 1, wherein the loading platform 1 is arranged at a furnace entry 21 of a heating furnace 2;
the sheet placing table 1 comprises a rack 13 and an upper sheet roller shaft group 11, the upper sheet roller shaft group 11 is arranged on the top surface of the rack 13, the upper sheet roller shaft group 11 is used for conveying glass to the heating furnace 2, and the furnace front detection module 3 is arranged at one end, close to the heating furnace 2, of the rack 13;
the stokehole detection module 3 comprises a correlation photoelectric switch 31 and a diffuse reflection photoelectric switch 32;
the opposite-type photoelectric switch 31 comprises an emitting part 311 and a receiving part 312, wherein the emitting part 311 is arranged on one side of the rack 13, the receiving part 312 is arranged on the other side of the rack 13, the emitting part 311 and the receiving part 312 are arranged oppositely, and a connecting line between the emitting part 311 and the receiving part 312 is vertical to the conveying direction of the upper piece roller group 11;
the diffuse reflection photoelectric switch 32 is arranged below the upper piece roller shaft group 11, and the emitting end of the diffuse reflection photoelectric switch 32 faces upwards.
The device for detecting the furnace feeding position of the loading platform based on the multiple optical eyes can detect whether the glass entering the heating furnace 2 from the loading platform 1 has a position running condition or not by using the furnace front detection module 3, so that the glass is prevented from colliding with a furnace frame 23 of the heating furnace 2 when entering the heating furnace 2.
When the glass is not laminated, the receiving portion 312 of the opposite type photoelectric switch 31 receives the light beam emitted from the emitting portion 311, and the emitting end of the diffuse reflection photoelectric switch 32 does not receive the diffuse reflection light beam by itself because it is not shielded. When the glass is fed, the glass is conveyed to the heating furnace 2 through the feeding roller shaft group 11, when the head end of the glass passes through the position where the correlation photoelectric switch 31 is arranged, the light beam emitted from the emitting part 311 of the correlation photoelectric switch 31 to the receiving part 312 is shielded by the glass, the receiving part 312 cannot receive the light beam, the light beam is the starting point where the glass passes, after the correlation photoelectric switch 31 detects the position of the starting point of the glass, the upper computer controls the opening of the furnace door of the heating furnace 2, the glass smoothly enters the heating furnace 2, when the tail end of the glass leaves the position where the correlation photoelectric switch 31 is arranged, the receiving part 312 receives the light beam emitted from the emitting part 311 again and is the end point where the glass passes, after the correlation photoelectric switch 31 detects the end point of the glass, and controlling the furnace door of the heating furnace 2 to be closed by the upper computer, and then heating the glass by the heating furnace 2. The correlation photoelectric switch 31 can obtain the measured length of the glass by detecting the time of the starting point and the end point of the glass and combining the conveying speed of the upper piece roller shaft group 11, then the running situation of the glass in the heating furnace 2 can be deduced by comparing the measured length with the actual length of the glass, and then the running situation of the glass is corrected. Because the head end and the tail end of the glass under the normal conveying condition are both perpendicular to the conveying direction of the upper piece roller group 11, the obtained measurement length can effectively reflect whether the glass runs in the heating furnace 2 only when the connecting line between the emitting part 311 and the receiving part 312 is perpendicular to the conveying direction of the upper piece roller group 11. When the surface of the glass is uneven, an error occurs in the detection of the correlation photoelectric switch 31, at this time, the diffuse reflection photoelectric switch 32 acts, the diffuse reflection photoelectric switch 32 emits a light beam to the glass passing through from bottom to top and collects the light beam reflected diffusely, so that the current position of the glass is detected, then the opening and closing of the furnace door of the heating furnace 2 can be controlled by an upper computer by detecting the starting point and the end point of the glass, the measured length can be obtained at the same time, and then the measured length is compared with the actual length of the glass, so that the displacement condition of the glass in the heating furnace 2 is deduced.
In some embodiments, the stokehole detection module 3 further includes a mounting bracket 33, the mounting bracket 33 is installed at one end of the rack 13 close to the heating furnace 2 and located below the upper roller group 11, a length direction of the mounting bracket 33 is perpendicular to a conveying direction of the upper roller group 11, and a plurality of diffuse reflection photoelectric switches 32 are distributed on a top surface of the mounting bracket 33 at intervals along the length direction.
When a large piece of glass is conveyed, a single diffuse reflection photoelectric switch 32 cannot cover the width of the glass, so that the measurement accuracy can be improved by providing a plurality of diffuse reflection photoelectric switches 32.
For example, the upper sheet roller group 11 includes a first roller shaft 111, a second roller shaft 112 and a third roller shaft 113 which are distributed at intervals, the first roller shaft 111, the second roller shaft 112 and the third roller shaft 113 are arranged at one end of the rack 13, and the distances between the first roller shaft 111, the second roller shaft 112 and the third roller shaft 113 and the furnace inlet 21 of the heating furnace 2 are gradually increased;
the mounting frame 33 is disposed between the second roller shaft 112 and the third roller shaft 113.
The closer to the heating furnace 2 the temperature is after the door of the heating furnace 2 is opened, the higher the temperature is, so it is necessary to make the mounting bracket 33 and the diffuse reflection photoelectric switch 32 as far away from the heating furnace 2 as possible to ensure that the mounting bracket 33 and the diffuse reflection photoelectric switch 32 are not damaged due to the high temperature. When the mounting frame 33 and the diffuse reflection photoelectric switch 32 are located at the above positions, when the diffuse reflection photoelectric switch 32 detects glass, the diffuse reflection photoelectric switch 32 feeds back to the upper computer and controls the upper computer to control the furnace door of the heating furnace 2 to be opened, the glass can be just conveyed to the furnace inlet 21 of the heating furnace 2, so that the waiting time of the heating furnace 2 is shortened, and the production efficiency is improved.
It should be noted that the opposite type photoelectric switch 31 is disposed between the second roller 112 and the third roller 113.
Correlation type photoelectric switch 31 sets up in above-mentioned position and can avoid the heat that heating furnace 2 gived off damages correlation type photoelectric switch 31 can also be in after correlation type photoelectric switch 31 detects glass, correlation type photoelectric switch 31 is to the host computer feedback and host computer control the back is opened to the furnace gate of heating furnace 2, glass can just be carried the income stove mouth 21 of heating furnace 2 to the waiting time of heating furnace 2 has been shortened, has improved production efficiency.
Optionally, as shown in fig. 2, the sheet placing table 1 further includes a driving mechanism 14 and a sheet feeding encoder 12, the sheet feeding roller set 11 is driven by the driving mechanism 14, and a raster of the sheet feeding encoder 12 faces a rotation shaft of the driving mechanism 14.
The driving mechanism 14 is preferably a motor, the grating of the upper encoder 12 is shielded once per rotation of the rotating shaft of the driving mechanism 14, the upper encoder 12 records a signal, each signal corresponds to a fixed distance, and then the number of the signals recorded by the upper encoder 12 when the glass passes through the correlation type photoelectric switch 31 or the diffuse reflection photoelectric switch 32 is calculated, so that the first measurement length of the glass can be obtained.
Specifically, still include stokehold preliminary detection module 4, stokehold preliminary detection module 4 set up in put the middle part of piece platform 1, stokehold preliminary detection module 4 is used for detecting the off-position condition of glass.
The stokehole pre-detection module 4 is preferably a photoelectric switch. The stokehole pre-detection module 4 can pre-detect whether the glass runs, and then correct the position of the glass in the sheet placing table 1 in time, so that the glass is prevented from deviating and falling.
Preferably, the distance between the diffuse reflection photoelectric switch 32 and the top surface of the upper sheet roller shaft group 11 is not less than 150 mm.
When the distance between the diffuse reflection photoelectric switch 32 and the top surface of the upper sheet roller shaft group 11 is too small, the distance between the diffuse reflection photoelectric switch 32 and the passing glass is too small, so that the area irradiated by the light beam emitted by the diffuse reflection photoelectric switch 32 is too small to cause errors.
In some embodiments, the outer surface of the stokehole detection module 3 is provided with a heat insulation device.
The heat insulation device can prevent the stokehole detection module 3 from being damaged by the high temperature of the heating furnace 2.
Other configurations and operations of a feeding platform furnace-entering position detection device based on multiple optical eyes according to the embodiment of the present invention are known to those skilled in the art, and will not be described in detail herein.
In the description herein, references to the description of the terms "embodiment," "example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (8)
1. The utility model provides a last piece platform advances stove position detection device based on multiple light eye, is including setting up in the stokehold detection module who puts the piece platform, put the piece platform and set up in the income fire door of heating furnace, its characterized in that:
the sheet placing table comprises a rack and an upper sheet roller shaft group, the upper sheet roller shaft group is arranged on the top surface of the rack and used for conveying glass to the heating furnace, and the furnace front detection module is arranged at one end, close to the heating furnace, of the rack;
the stokehole detection module comprises a correlation photoelectric switch and a diffuse reflection photoelectric switch;
the opposite-type photoelectric switch comprises an emitting part and a receiving part, the emitting part is arranged on one side of the rack, the receiving part is arranged on the other side of the rack, the emitting part and the receiving part are arranged oppositely, and a connecting line between the emitting part and the receiving part is perpendicular to the conveying direction of the upper piece roller shaft group;
the diffuse reflection photoelectric switch is arranged below the upper piece roller shaft group, and the emitting end of the diffuse reflection photoelectric switch faces upwards.
2. The device for detecting the position of the feeding table into the furnace based on the multiple optical eyes as claimed in claim 1, wherein: the stokehole detection module further comprises a mounting rack, the mounting rack is mounted at one end, close to the heating furnace, of the rack and located below the upper piece roller shaft group, the length direction of the mounting rack is perpendicular to the conveying direction of the upper piece roller shaft group, and a plurality of diffuse reflection photoelectric switches are distributed on the top surface of the mounting rack along the length direction at intervals.
3. The device for detecting the position of the feeding table into the furnace based on the multiple optical eyes as claimed in claim 2, wherein: the upper piece roller shaft group comprises a first roller shaft, a second roller shaft and a third roller shaft which are distributed at intervals, the first roller shaft, the second roller shaft and the third roller shaft are arranged at one end of the rack, and the distances between the first roller shaft, the second roller shaft and the third roller shaft and the furnace inlet of the heating furnace are increased one by one;
the mounting bracket set up in between second roller and the third roller.
4. The device for detecting the position of the feeding table into the furnace based on the multiple optical eyes as claimed in claim 3, wherein: the correlation type photoelectric switch is arranged between the second roll shaft and the third roll shaft.
5. The device for detecting the position of the feeding table into the furnace based on the multiple optical eyes as claimed in claim 1, wherein: the piece placing table further comprises a driving mechanism and a piece feeding encoder, the piece feeding roller shaft group is driven by the driving mechanism, and a grating of the piece feeding encoder faces a rotating shaft of the driving mechanism.
6. The device for detecting the position of the feeding table into the furnace based on the multiple optical eyes as claimed in claim 1, wherein: still include stokehold preliminary examination module, stokehold preliminary examination module set up in put the middle part of piece platform, stokehold preliminary examination module is used for detecting glass's the off-position condition.
7. The device for detecting the position of the feeding table into the furnace based on the multiple optical eyes as claimed in claim 1, wherein: the distance between the diffuse reflection photoelectric switch and the top surface of the upper piece roller shaft group is not less than 150 mm.
8. The device for detecting the position of the feeding table into the furnace based on the multiple optical eyes as claimed in claim 1, wherein: and a heat insulation device is arranged on the outer surface of the stokehole detection module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022506415.XU CN213600015U (en) | 2020-11-03 | 2020-11-03 | Last piece platform advances stove position detection device based on multiple light eye |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022506415.XU CN213600015U (en) | 2020-11-03 | 2020-11-03 | Last piece platform advances stove position detection device based on multiple light eye |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213600015U true CN213600015U (en) | 2021-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022506415.XU Active CN213600015U (en) | 2020-11-03 | 2020-11-03 | Last piece platform advances stove position detection device based on multiple light eye |
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| CN (1) | CN213600015U (en) |
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2020
- 2020-11-03 CN CN202022506415.XU patent/CN213600015U/en active Active
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