Glass detection device

Abstract

The utility model belongs to the technical field of glass manufacturing, and particularly relates to a glass detection device which comprises a roller way, a photoelectric sensor and a light absorption device, wherein the roller way comprises two side edges and a plurality of roller shafts, the two ends of each roller shaft are connected with the two side edges of the roller way respectively, the photoelectric sensors and the light absorption devices are located above and below the roller way respectively, and the photoelectric sensors are located on the side edges of the roller way and face the direction of the roller way; the light absorption device comprises a light absorption plate, and the light absorption plate faces the roller way and is inclined to the plane of the roller way. The glass detection device solves the problem that in the prior art, a glass detection device is prone to misjudgment when broken glass exists, interference of the broken glass in the detection process can be eliminated through the inclined light absorption plate, the detection accuracy and stability are improved, and therefore production losses caused by misjudgment are reduced.

Description

Technical Field

[0001] The utility model belongs to the field of glass manufacturing, and in particular relates to a glass detection device. Background Art

[0002] In the production process of glass sheets, in order to ensure the continuous operation of the production line, a glass detection device is usually used to monitor the presence of glass sheets in real time. This glass detection device generally includes key parts such as photoelectric sensors, glass and light-absorbing plates. The photoelectric sensor uses its mirror reflection principle to detect the reflected light signal of the glass sheet to determine whether the glass sheet exists. When the glass sheet passes normally, the photoelectric sensor receives enough reflected light signals, thereby triggering the subsequent control system; if there are not enough reflected light signals, it means that no glass sheet has passed, and the control system will make corresponding processing.

[0003] However, the existing glass detection device has some shortcomings in practical applications. In the production process of glass plates, broken glass may be generated due to various reasons, such as mechanical vibration, operational errors, etc. Once these broken glass fall into the detection area, they will interfere with the normal operation of the photoelectric sensor. Due to the mirror reflection principle of the photoelectric sensor, the reflected light signal of the broken glass is similar to the reflected light signal of the glass plate, which makes it difficult for the photoelectric sensor to distinguish between real glass plates and broken glass. Therefore, when the broken glass passes through the detection area, the photoelectric sensor may misjudge it as a glass plate, causing the control system to process it incorrectly, thereby causing production losses. Prior art 201920821416.8 discloses a directional cutting device for FPC circuit boards, in which a light-absorbing plate cooperates with a photoelectric sensor, and the photoelectric sensor transmits a signal to the processor in real time. When the signal transmitted by a photoelectric sensor is inconsistent with other photoelectric sensors, the processor stops the power roller and the cutting device through the power roller controller and the cutting device controller, and issues an alarm through the alarm to prompt the staff to come to handle it, ensuring that the cut substrate, cover film, electromagnetic film and other materials are of the same size. However, the arrangement of the photoelectric detector and the light-absorbing plate of this structure is difficult to apply in the existing mature glass production line.

[0004] Therefore, there is an urgent need to develop a glass detection device that can accurately detect glass plates even when broken glass is present. Utility Model Content

[0005] The utility model aims to solve a technical problem: solving the problem that the glass detection device in the prior art is prone to misjudgment when broken glass exists. The anti-smashing photoelectric sensor light absorbing inclined plate can effectively reduce the interference of broken glass on the photoelectric sensor detection through a specific structural design, improve the accuracy and stability of detection, and thus reduce production losses caused by misjudgment.

[0006] In order to solve the above technical problems, the embodiment of the utility model provides a glass detection device, including a roller, a photoelectric sensor and a light absorbing device;

[0007] The roller table includes two side edges and a plurality of roller shafts, the two ends of the roller shafts are respectively connected to the two side edges, the photoelectric sensor and the light absorbing device are respectively located above and below the roller table, and the photoelectric sensor is located on the side edge of the roller table and faces the direction of the roller table;

[0008] The light absorbing device comprises a light absorbing plate, which faces the roller direction and is inclined to the roller plane.

[0009] In some embodiments, the light absorbing device includes, from bottom to top, a base, a support rod, and a light absorbing plate;

[0010] The base is located on the ground, one end of the support rod is vertically connected to the base, and the other end of the support rod is connected to the light absorbing plate.

[0011] In some embodiments, the light absorbing plate includes an inclined plate and a frosted plate bonded together, the inclined plate is connected to one end of the support rod, and the frosted plate faces the roller direction.

[0012] In some embodiments, one side of the inclined plate is welded to one end of the support rod.

[0013] In some embodiments, the frosted plate is a frosted glass plate.

[0014] In some embodiments, the support rod includes a first rod and a second rod, the first rod is a hollow structure, one end of which is connected to the base, a plurality of protrusions are provided on the inner wall of the first rod, the second rod is nested into the hollow structure of the first rod from the other end of the first rod, and a plurality of engaging grooves matching the protrusions are provided on the outer wall of the second rod.

[0015] In some embodiments, the angle between the inclined plate and the plane where the roller is located is between 15° and 45°.

[0016] In some embodiments, one side of the light absorbing plate is connected to one side of the support rod via a connector with an adjustable rotation angle.

[0017] In some embodiments, a plurality of snap buckles are provided on an edge of the inclined plate close to the frosting plate.

[0018] In some embodiments, the side of the inclined plate close to the frosting plate also includes a first slide groove and a second slide groove arranged in parallel and opposite to each other. The first slide groove and the second slide groove are respectively arranged on both sides of the inclined plate, and both sides of the frosting plate are detachably installed in the first slide groove and the second slide groove.

[0019] The beneficial effects of the utility model are:

[0020] The glass detection device disclosed in the embodiment of the utility model can solve the problem that the glass detection device in the prior art is prone to misjudgment when broken glass exists. It eliminates the interference of broken glass during detection through an inclined light-absorbing plate, improves the accuracy and stability of detection, and thus reduces production losses caused by misjudgment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 The following is a schematic diagram showing the structure of a glass detection device provided by some embodiments of the present utility model;

[0023] Figure 2 The schematic diagram of the structure of the light absorbing device provided in some embodiments of the utility model is shown.

[0024] Description of reference numerals:

[0025] 1. Frosted surface; 2. Inclined plate; 3. Support rod; 4. Base; 5. Photoelectric sensor; 6. Side; 7. Roller; 8. Roller table; 9. Light absorbing plate; 10. Light absorbing device. DETAILED DESCRIPTION

[0026] The following is a further detailed description of the implementation of the utility model in conjunction with the accompanying drawings and examples. The detailed description of the following examples and the accompanying drawings are used to exemplarily illustrate the principles of the utility model, but cannot be used to limit the scope of the utility model. The utility model can be implemented in many different forms, not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0027] The utility model provides these embodiments to make the utility model thorough and complete, and to fully express the scope of the utility model to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​described in these embodiments should be interpreted as merely exemplary, rather than as limiting.

[0028] It should be noted that, in the description of the present invention, unless otherwise specified, the meaning of "multiple" is greater than or equal to two; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the orientation or positional relationship, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0029] In addition, the words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different parts. "Vertical" does not mean vertical in the strict sense, but is within the tolerance range. "Parallel" does not mean parallel in the strict sense, but is within the tolerance range. "Include" or "comprising" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements.

[0030] It should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0031] All terms used in the present invention have the same meanings as those understood by ordinary technicians in the field to which the present invention belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0032] The embodiment of the utility model provides a glass detection device, including a roller 8, a photoelectric sensor 5 and a light absorbing device 10;

[0033] Among them, the roller 8 includes two side edges 6 and multiple roller shafts 7 respectively connected to the two side edges 6 at both ends. The photoelectric sensor 5 and the light absorbing device 10 are respectively located above and below the roller 8. The photoelectric sensor 5 is located on the side edge 6 of the roller 8 and faces the direction of the roller 8; the light absorbing device 10 includes a light absorbing plate 9, which faces the direction of the roller 8 and is inclined to the plane of the roller 8; there are gaps between the multiple roller shafts 7, and the light emitted by the photoelectric sensor 5 can pass through the gaps between the rollers and shoot toward the light absorbing plate 9. The utility model arranges a photoelectric sensor 5 above the roller 8 and a light absorbing device 10 below the roller 8, so that the light emitted by the photoelectric sensor 5 can be directed to the glass element to be detected, penetrate the glass element to be detected to the light absorbing device 10, and the amount of light reflected by the light absorbing device 10 can be collected to judge whether there is a glass element at the detection position. The light absorbing device 10 can prevent glass fragments from falling on the light absorbing surface of the light absorbing device 10 by arranging a light absorbing plate 9 inclined to the plane of the roller 8, thereby effectively reducing the interference of broken glass on the detection of the photoelectric sensor 5, improving the accuracy and stability of the detection, and reducing the production loss caused by misjudgment.

[0034] In some embodiments, Figure 1 and Figure 2 As shown, the light absorbing device 10 includes, from bottom to top, a base 4, a support rod 3 and a light absorbing plate 9; the base 4 is located on the ground, one end of the support rod 3 is vertically connected to the base 4, and the other end of the support rod 3 is connected to the light absorbing plate 9. The light absorbing device 10 of the utility model has a simple structure, including a base 4, a support rod 3 and a light absorbing plate 9, wherein the light absorbing plate 9 is directly placed or installed on the ground or other horizontal planes through the base 4 and the support rod 3, so that the position of the light absorbing device 10 can be adjusted according to different production equipment.

[0035] In addition, in order to better reduce the interference of stray light, the light absorbing plate 9 is set to a frosted surface 1. Specifically, in some embodiments, such as Figure 1 and Figure 2 As shown, the light absorbing plate 9 includes an inclined plate 2 and a frosted plate. One side of the inclined plate 2 is connected to one end of the support rod 3 , and the other side is connected to the frosted plate. The frosted plate faces the roller 8 .

[0036] The light absorbing plate 9 of the utility model comprises an inclined plate 2 and a frosted plate. The function of the inclined plate 2 is to support and fix the frosted plate, and the function of the frosted plate is to diffusely reflect light incident on the light absorbing plate 9, thereby further reducing the detection error caused by the reflected light generated after the light that may appear from the light source or the production environment is incident on the light absorbing plate 9.

[0037] The connection between the inclined plate 2 and the support rod 3 can be bolted, welded, or bonded with a polymer material. In order to make the inclined plate 2 and the support rod 3 more firmly connected, in some embodiments of the present invention, one side of the inclined plate 2 is welded to one end of the support rod 3. When the frosted plate is a frosted glass plate, the light absorbing device 10 has a better effect of eliminating stray light because the material of the frosted glass plate is the same as that of the glass workpiece to be detected, which is conducive to better eliminating interference for the photoelectric sensor 5.

[0038] In order to adjust the height of the light absorbing plate 9 according to production needs, in some embodiments, the support rod 3 includes a first rod and a second rod, the first rod is a hollow structure, one end of which is connected to the base 4, and the inner wall of the other end is provided with multiple protrusions, the second rod is nested inside the first rod, and the side of the second rod is provided with multiple snap-fit ​​grooves that match the protrusions. The above structure can be fixed by different protrusions of the first rod and the snap-fit ​​grooves of the second rod, so as to adjust different lengths of the support rod 3.

[0039] In other embodiments of the utility model, the method of adjusting the length of the support rod 3 of the utility model is not limited to the above-mentioned engaging groove, and the length of the support rod 3 can also be adjusted and fixed by limiting holes and screws. The utility model can also be provided with a plurality of first through holes at different heights and relatively penetrating left and right on the side wall of the first rod, and at the same time, a second through hole relatively penetrating left and right that is adapted and adapted is also provided at one end of the second rod. The first through hole and the second through hole are penetrated by screws, and nuts are used to fix the protruding ends of the screws. According to the required length of the support rod 3, the first through hole and the second through hole at appropriate positions on the first rod are selected to be fixed.

[0040] In order to reflect light to the photoelectric sensor 5 and at the same time allow the fragments of the fallen glass workpiece to fall evenly and eliminate interference, the utility model limits the inclination angle of the inclined plate 2 within a specific range. Specifically, the angle between the inclined plate 2 and the plane where the roller 8 is located is between 15° and 45°, including but not limited to 15°, 20°, 25°, 30°, 35°, 40° or 45°.

[0041] In the present invention, the tilt angle of the light absorbing plate 9 is not fixed. In order to more conveniently adjust the tilt angle of the light absorbing plate 9, in some embodiments, one side of the light absorbing plate 9 is connected to one side of the support rod 3 by a connector with an adjustable rotation angle. For example, the connector may be connected by a universal fixed connector, or may be connected by a rotating bolt capable of adjusting the rotation angle of the light absorbing plate 9. The light absorbing plate 9 may be adjusted to a suitable angle by loosening the bolt, and then the rotating screw may be tightened to fix the tilt angle of the light absorbing plate 9.

[0042] In some embodiments, a plurality of snap buckles are provided on the edge of the inclined plate 2 near the sanding plate, and the snap buckles are used to detachably fix the sanding plate and the inclined plate 2. When the sanding plate and the inclined plate 2 are detachably fixed, if the sanding plate is damaged by the workpiece or due to other reasons, the sanding plate can be replaced immediately.

[0043] The fixing method of the frosting plate and the inclined plate 2 is not limited to the snap-fit ​​fixing, and the frosting plate can also be fixed by a limiting slide groove. In some embodiments, two opposite edges of the inclined plate 2 on one side close to the frosting plate are respectively provided with a first slide groove and a second slide groove that are arranged parallel and opposite to each other, and the first slide groove and the second slide groove are respectively arranged on both sides of the inclined plate 2, and the two sides of the frosting plate are detachably installed in the first slide groove and the second slide groove. That is, the frosting plate can be fixed by two limiting slide grooves.

[0044] The glass detection device of the utility model places the glass workpiece to be detected on the roller 8. As the roller 8 rolls, the glass workpiece is driven to move forward in the rolling direction of the roller 8. When the glass rolls into the detection range of the photoelectric sensor 5, the photoelectric sensor 5 emits the light required for detection, which is irradiated on the glass workpiece, passes through the glass workpiece, and passes through the gap between the rollers 8 to irradiate the light absorbing plate 9 of the light absorbing device 10. The light absorbing device 10 can eliminate the interference of debris of the glass workpiece. Then the photoelectric sensor 5 receives the light signal and judges the quality of the glass workpiece.

[0045] So far, various embodiments of the present invention have been described in detail. In order to avoid obscuring the concept of the present invention, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0046] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict.

Claims

1. A glass detection device, characterized in that: It comprises a roller conveyor (8), a photoelectric sensor (5) and a light absorbing device (10); The roller (8) comprises two side edges (6) and a plurality of roller shafts (7), the two ends of the roller shafts (7) are respectively connected to the two side edges (6), the photoelectric sensor (5) and the light absorbing device (10) are respectively located above and below the roller (8), and the photoelectric sensor (5) is located on the side edge (6) of the roller (8) and faces the direction of the roller (8); The light absorbing device (10) comprises a light absorbing plate (9), the light absorbing plate (9) faces the direction of the roller conveyor (8), and the light absorbing plate (9) is inclined to the plane of the roller conveyor (8).

2. The glass detection device according to claim 1, characterized in that: The light absorbing device (10) comprises, from bottom to top, a base (4), a support rod (3) and a light absorbing plate (9); The base (4) is located on the ground, one end of the support rod (3) is vertically connected to the base (4), and the other end of the support rod (3) is connected to the light absorbing plate (9).

3. The glass detection device according to claim 2, characterized in that: The light absorbing plate (9) comprises an inclined plate (2) and a frosted plate which are bonded together, the inclined plate (2) is connected to one end of a support rod (3), and the frosted plate faces the direction of the roller conveyor (8).

4. The glass detection device according to claim 3, characterized in that: One side of the inclined plate (2) is welded to one end of the support rod (3).

5. The glass detection device according to claim 3, characterized in that: The frosted plate is a frosted glass plate.

6. The glass detection device according to claim 3, characterized in that: The support rod (3) comprises a first rod and a second rod, the first rod being a hollow structure, one end of which is connected to the base (4), a plurality of protrusions being arranged on the inner wall of the first rod, the second rod being nested into the hollow structure of the first rod from the other end of the first rod, and a plurality of engaging grooves matching the protrusions being arranged on the outer wall of the second rod.

7. The glass detection device according to claim 3, characterized in that: The angle between the inclined plate (2) and the plane where the roller conveyor (8) is located is between 15° and 45°.

8. The glass detection device according to claim 2, characterized in that: One side of the light absorbing plate (9) is connected to one side of the support rod (3) via a connecting piece with an adjustable rotation angle.

9. The glass detection device according to claim 4, characterized in that: A plurality of snap-fit ​​buckles are arranged on the edge of the inclined plate (2) on one side close to the sanding plate.

10. The glass detection device according to claim 4, characterized in that: The inclined plate (2) further comprises a first slide groove and a second slide groove which are arranged in parallel and opposite to each other on one side close to the sanding plate. The first slide groove and the second slide groove are respectively arranged on both sides of the inclined plate (2). Both sides of the sanding plate can be detachably installed in the first slide groove and the second slide groove.

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