阅读说明：本技术 一种光电传感器及传送装置 (Photoelectric sensor and conveying device ) 是由 顾伟 江建明 曹孟业 冯龙 潘朝辉 程继忠 阮甘林 薛欢 于 2019-09-25 设计创作，主要内容包括：本发明公开了一种光电传感器及传送装置,涉及光电传感器结构技术领域,为解决相关技术中的光电传感器无法准确感应到被传送物的问题而发明。该光电传感器,包括传感器本体,所述传感器本体具有用于发出和接收光线的检测口,所述光电传感器还包括弹性部件,所述弹性部件在初始状态时位于所述检测口的出光区域之外,所述弹性部件能够在外力的作用下发生弹性变形,使所述弹性部件的一部分位于所述出光区域内,以反射所述检测口发出的光线。本发明可用于玻璃基板等的位置检测。(The invention discloses a photoelectric sensor and a conveying device, relates to the technical field of photoelectric sensor structures, and aims to solve the problem that a conveyed object cannot be accurately sensed by a photoelectric sensor in the related art. The photoelectric sensor comprises a sensor body, wherein the sensor body is provided with a detection port for emitting and receiving light, the photoelectric sensor further comprises an elastic part, the elastic part is positioned outside a light emitting area of the detection port in an initial state, and the elastic part can elastically deform under the action of external force, so that one part of the elastic part is positioned in the light emitting area to reflect the light emitted by the detection port. The invention can be used for detecting the position of a glass substrate and the like.)

1. A photoelectric sensor comprises a sensor body, wherein the sensor body is provided with a detection port for emitting and receiving light, and the photoelectric sensor is characterized by further comprising an elastic component, the elastic component is positioned outside a light emitting area of the detection port in an initial state, and the elastic component can generate elastic deformation under the action of external force, so that a part of the elastic component is positioned in the light emitting area to reflect the light emitted by the detection port.

2. The photosensor assembly of claim 1, wherein the resilient member is removably disposed on the sensor body via a mounting structure.

3. The optical sensor as claimed in claim 2, wherein the mounting structure includes a mounting groove formed on the sensor body, a portion of the elastic member is inserted into the mounting groove, another portion of the elastic member is located outside the mounting groove and protrudes from the surface of the sensor body where the detection opening is formed, and the portion of the elastic member located outside the mounting groove can be elastically deformed by an external force.

4. The photoelectric sensor according to claim 3, wherein a depth direction of the mounting groove is perpendicular to an opening plane of the detection opening.

5. The photoelectric sensor according to any one of claims 1 to 4, wherein the elastic member is a spring.

6. The photoelectric sensor according to claim 5, wherein the elastic piece is made of a soft material.

7. The photosensor of claim 6, wherein the spring plate is a rubber spring plate.

8. The photoelectric sensor of claim 5, wherein the dome comprises a metal dome body and a Teflon coating covering a surface of the metal dome body.

9. A conveying apparatus comprising a conveying table having a conveying passage for conveying a conveyed object and the photoelectric sensor of any one of claims 1 to 8, wherein an elastic member of the photoelectric sensor protrudes into the conveying passage;

when the conveying workbench conveys the conveyed object, the elastic component can be abutted against the conveyed object so as to generate elastic deformation under the action of the conveyed object, and a part of the elastic component is positioned in the light emergent area of the detection port so as to reflect the light emitted by the detection port.

Technical Field

The invention relates to the technical field of photoelectric sensor structures, in particular to a photoelectric sensor and a transmission device.

Background

In the manufacturing process of the display panel or the touch panel, the substrate is transferred as an important process, and the position of the substrate is usually detected by a photoelectric sensor during the substrate transfer process, so as to facilitate the next process.

Disclosure of Invention

The embodiment of the invention provides a photoelectric sensor and a conveying device, which are used for solving the problem that the photoelectric sensor in the related technology cannot accurately sense a conveyed object.

In order to achieve the above object, in a first aspect, an embodiment of the present invention provides a photoelectric sensor, including a sensor body, the sensor body having a detection port for emitting and receiving light, the photoelectric sensor further including an elastic member, the elastic member being located outside a light exit area of the detection port in an initial state, the elastic member being capable of being elastically deformed by an external force so that a portion of the elastic member is located in the light exit area to reflect the light emitted by the detection port.

Further, the elastic component is detachably arranged on the sensor body through a mounting structure.

Furthermore, the mounting structure is including offering mounting groove on the sensor body, partly cooperation of elastomeric element is inserted to in the mounting groove, another part is located outside the mounting groove, and protrusion in the sensor body sets up the surface of detection mouth, elastomeric element is located the outer part of mounting groove can take place elastic deformation under the effect of external force.

Furthermore, the depth direction of the mounting groove is perpendicular to the opening plane of the detection opening.

Further, the elastic component is a spring sheet.

Furthermore, the elastic sheet is made of soft materials.

Furthermore, the elastic sheet is a rubber elastic sheet.

Furthermore, the elastic sheet comprises a metal elastic sheet body and a Teflon coating layer covering the surface of the metal elastic sheet body.

In a second aspect, an embodiment of the present invention provides a conveying apparatus, including a conveying table and the photoelectric sensor described in the first aspect, wherein the conveying table has a conveying channel for conveying an object to be conveyed, and an elastic member of the photoelectric sensor extends into the conveying channel; when the conveying workbench conveys the conveyed object, the elastic component can be abutted against the conveyed object so as to generate elastic deformation under the action of the conveyed object, and a part of the elastic component is positioned in the light emergent area of the detection port so as to reflect the light emitted by the detection port.

The photoelectric sensor and the transmission device provided by the embodiment of the invention also comprise the elastic component, the elastic component is positioned outside the light-emitting area of the detection port in the initial state, the elastic component can generate elastic deformation under the action of external force, so that a part of the elastic component is positioned in the light-emitting area to reflect the light emitted by the detection port, in the process of transmitting the transmitted object with lower reflectivity, when the transmitted object is transmitted to the position where the photoelectric sensor is installed, the transmitted object can be abutted against the elastic component of the photoelectric sensor, the elastic component generates elastic deformation under the action of the transmitted object, so that a part of the elastic component is positioned in the light-emitting area to re-reflect the light emitted by the detection port into the detection port, and the photoelectric sensor can sense the existence of the transmitted object, thereby smoothly carrying out the next operation on the transmitted object, for example, the conveyed object stops conveying, and the like, so that the problem that the conveyed object collides with the previous conveyed object to be damaged due to the fact that the photoelectric sensor cannot sense the conveyed object can be avoided, the yield of products can be improved, the number of times of halt of the conveying device due to the collision of the conveyed objects can be reduced, the utilization rate of the conveying device can be improved, and the production efficiency can be improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic diagram illustrating a process of detecting a conveyed object by a photoelectric sensor in the related art;

fig. 2 is a schematic view showing a process of detecting a conveyed object with a lower surface covered with an antireflection film by a photoelectric sensor in the related art;

FIG. 3 is a schematic structural diagram of a transfer device according to an embodiment of the present invention;

fig. 4 is a schematic diagram illustrating a process of detecting a conveyed object by a photoelectric sensor according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a photosensor according to some embodiments of the present invention;

fig. 6 is a schematic view of an installation structure of the elastic piece and the sensor body in the photoelectric sensor according to some embodiments of the present invention;

FIG. 7 is a top view of a sensor body in a photosensor according to some embodiments of the present invention;

fig. 8 is a schematic view of an installation structure of the elastic piece and the sensor body in the photoelectric sensor according to some embodiments of the present invention;

fig. 9 is a schematic view of an installation structure of the elastic piece and the sensor body in the photoelectric sensor according to some embodiments of the present invention;

fig. 10 is a schematic structural diagram of a spring in a photoelectric sensor according to some embodiments of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In a first aspect, an embodiment of the present invention provides a photoelectric sensor, as shown in fig. 5, which includes a sensor body 1, the sensor body 1 has a detection port 11 for emitting and receiving light, and the photoelectric sensor further includes an elastic member 2, as shown in fig. 4, the elastic member 2 is located outside the light emitting area 3 of the detection port 11 in an initial state, and the elastic member 2 can be elastically deformed by an external force, so that a part of the elastic member 2 is located in the light emitting area 3 to reflect the light emitted from the detection port 11.

In the photoelectric sensor provided by the embodiment of the present invention, since the elastic member 2 is further included, the elastic member 2 is located outside the light exit area 3 of the detection port 11 in the initial state, and the elastic member 2 can be elastically deformed by an external force, so that a part of the elastic member 2 is located in the light exit area 3 to reflect the light emitted from the detection port 11, as shown in fig. 3 and 4, when the object 300 (such as a glass substrate) with a low reflectance (for example, a reflectance < 0.5%) is conveyed, the object 300 can be in contact with the elastic member 2 of the photoelectric sensor when the object 300 is conveyed to the position where the photoelectric sensor is installed, and the elastic member 2 is elastically deformed by the object 300, so that a part of the elastic member 2 is located in the light exit area 3 to reflect the light emitted from the detection port 11 to the detection port 11 again, therefore, the photoelectric sensor can sense the existence of the conveyed object 300, so that the next operation on the conveyed object 300 can be smoothly carried out, for example, the conveyed object 300 stops conveying, and the like, so that the problem that the subsequent conveyed object 300 collides with the previous conveyed object 300 to be damaged due to the fact that the photoelectric sensor cannot sense the conveyed object 300 can be avoided, the yield of products can be improved, the number of times of halt of the conveying device due to the collision of the conveyed object 300 can be reduced, the utilization rate of the conveying device can be improved, and the production efficiency can be improved.

In the above-described embodiment, the relationship between the elastic member 2 and the sensor body 1 is not exclusive, and for example, as shown in fig. 6 and 7, the elastic member 2 may be detachably provided on the sensor body 1 by the mounting structure 4. In addition, the elastic member 2 may be non-detachably disposed on the sensor body 1, for example, the elastic member 2 may be integrally formed with or welded to the housing of the sensor body 1. Compared with the elastic component 2 which is arranged on the sensor body 1 in an undetachable way, the elastic component 2 is arranged on the sensor body 1 in a detachable way, when the conveying device conveys the conveyed object 300 with high reflectivity, the elastic component 2 can be detached from the sensor body 1, and therefore the sensing of the conveyed object 300 is facilitated; when the conveying device conveys the conveyed object 300 with high reflectivity, the elastic component 2 can be arranged on the sensor body 1, thereby ensuring that the photoelectric sensor can smoothly sense the conveyed object 300. The elastic component 2 is detachably connected with the sensor body 1, so that the elastic component can be selectively installed on the sensor body 1 or detached from the sensor body 1 according to the light reflectivity of the conveyed object 300, the applicability of the photoelectric sensor is improved, and the range of types of the conveyed object 300 detected by the photoelectric sensor is widened.

The mounting structure 4 is also not unique, for example, the mounting structure 4 may be as follows: as shown in fig. 6 and 7, the mounting structure 4 includes a mounting groove 41 opened on the sensor body 1, a part of the elastic component 2 is inserted into the mounting groove 41 in a fitting manner, another part of the elastic component is located outside the mounting groove 41 and protrudes from the surface of the sensor body 1 where the detection port 11 is located, and the part of the elastic component 2 located outside the mounting groove 41 can be elastically deformed by an external force. In addition, the mounting structure 4 may be as follows: as shown in fig. 8, the mounting structure 4 includes a slot 42 opened on the sensor body 1 and a buckle 43 disposed on the elastic component 2, and the buckle 43 is detachably clamped with the slot 42. When the elastic member 2 is removed, a force is applied to the catch 43 to disengage the catch 43 from the catch 42, thereby completing the removal of the elastic member 2. Compare the embodiment that mounting structure 4 includes draw-in groove 42 and buckle 43, in the embodiment that mounting structure 4 includes mounting groove 41, mounting structure 4 is simpler, only needs to insert elastic component 2 into mounting groove 41, extract from mounting groove 41 and can realize elastic component 2's dismouting, makes elastic component 2's dismouting very convenient.

In the embodiment where the mounting structure 4 includes the mounting groove 41, the mounting groove 41 is not opened in a unique manner, for example, as shown in fig. 5 and 6, the depth direction Z of the mounting groove 41 may be perpendicular to the opening plane 110 of the detection port 11. As shown in fig. 9, the depth direction Z of the mounting groove 41 may be parallel to the opening plane 110 of the detection port 11. Compared with the mounting groove 41 with the depth direction Z parallel to the opening plane 110 of the detection port 11, when the mounting groove 41 with the depth direction Z perpendicular to the opening plane 110 of the detection port 11, the structure of the elastic component 2 can be more compact, and the volume of the elastic component 2 is reduced.

In the photoelectric sensor provided in the embodiment of the present invention, the structure of the elastic component 2 is not unique, for example, as shown in fig. 5, the elastic component 2 may be a spring, as shown in fig. 4, when the spring is in an initial state, the spring is located outside the light exit area 3 of the detection port 11, when the object 300 to be transmitted moves to the position of the photoelectric sensor, the object 300 to be transmitted abuts against the spring, and under the action of the object 300 to be transmitted, the spring bends and elastically deforms, so that the bent portion of the spring is located in the light exit area 3 of the detection port 11 to reflect the light emitted from the detection port 11, thereby enabling the photoelectric sensor to sense the existence of the object 300 to be transmitted; when the function of the conveyed object 300 is removed, the elastic sheet is restored to the initial state.

The elastic member 2 may be an elastic rod, which is located outside the light exit area 3 of the detection port 11 in the initial state, and when the object 300 to be conveyed moves to the position of the photosensor, the object 300 to be conveyed abuts against an end of the elastic rod, and the elastic rod is elastically deformed by bending under the action of the object 300 to make the bent portion of the elastic rod located in the light exit area 3 of the detection port 11, so as to reflect the light exiting from the detection port 11, and the photosensor senses the presence of the object 300 to be conveyed; when the function of the conveyed object 300 is removed, the elastic rod is restored to the original state. Compare the elastic rod, the area of shell fragment is bigger, when the shell fragment takes place elastic deformation, can be with detecting in 11 more light-emitting reflection of mouth to detecting mouth 11 to can make photoelectric sensor more accurately sense the existence of being conveyed thing 300, can improve photoelectric sensor's sensitivity.

When the elastic member 2 is a spring, the spring may be made of a soft material in order to reduce damage to the object 300. Therefore, when the elastic sheet is contacted with the conveyed object 300, the conveyed object 300 is not easily scratched, and the production quality of the conveyed object 300 is favorably ensured.

Wherein, the shell fragment can be rubber shell fragment, also can be the silica gel shell fragment. Compare the silica gel shell fragment, the elasticity of rubber shell fragment is better, can take place bigger elastic deformation to reflect the light-emitting of detecting mouthful 11.

The spring piece can also be of the following structure: as shown in fig. 10, the elastic sheet includes a metal elastic sheet body 21 and a teflon coating 22 covering a surface of the metal elastic sheet body 21. By covering the teflon coating 22 on the metal elastic sheet body 21, the elastic sheet not only has the properties of metal elastic sheets such as high strength and good elasticity, but also has the characteristics of teflon coating 22 such as good sliding property and wear resistance. Compared with a metal elastic sheet, the elastic sheet has better sliding property, and can reduce the friction damage between the elastic sheet and the conveyed object 300.

In a second aspect, an embodiment of the present invention provides a conveying apparatus, as shown in fig. 3, including a conveying table 200 and the photoelectric sensor 100 described in the first aspect, wherein the conveying table 200 has a conveying channel 210 for conveying an object 300 to be conveyed, and the elastic member 2 of the photoelectric sensor 100 extends into the conveying channel 210; as shown in fig. 4, when the conveying table 200 conveys the object 300, the elastic member 2 can abut against the object 300 to be conveyed, so as to be elastically deformed by the object 300, and a part of the elastic member 2 is positioned in the light-exiting region 3 of the detection port 11 to reflect the light emitted from the detection port 11.

In the process of conveying the driven object with low reflectivity, as shown in fig. 3 and 4, when the driven object moves to the position where the photoelectric sensor 100 is installed, the driven animal can abut against the part of the elastic component 2 of the photoelectric sensor 100, which extends into the conveying channel 210, and the elastic component 2 is elastically deformed under the action of the driven animal, so that a part of the elastic component 2 is located in the light exit area 3 of the detection port 11, and the light emitted from the detection port 11 is reflected into the detection port 11 again, so that the photoelectric sensor 100 can sense the existence of the driven animal, and the next operation on the driven object can be smoothly performed. The object 300 to be conveyed may be a glass substrate, or may be another object, and is not limited in particular.

The technical problems solved and the technical effects achieved by the transmission device according to the embodiments of the present invention are the same as the technical problems solved and the technical effects achieved by the photoelectric sensor 100 in the first aspect, and are not repeated herein.

In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.