WO2017117969A1 - 传送装置 - Google Patents

传送装置 Download PDF

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Publication number
WO2017117969A1
WO2017117969A1 PCT/CN2016/090405 CN2016090405W WO2017117969A1 WO 2017117969 A1 WO2017117969 A1 WO 2017117969A1 CN 2016090405 W CN2016090405 W CN 2016090405W WO 2017117969 A1 WO2017117969 A1 WO 2017117969A1
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WO
WIPO (PCT)
Prior art keywords
conveyor belt
baffle
support shaft
light
mounting hole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2016/090405
Other languages
English (en)
French (fr)
Inventor
毛蕾
代伟
杨溢
苗贺
刘芳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BOE Technology Group Co Ltd
Hefei Xinsheng Optoelectronics Technology Co Ltd
Original Assignee
BOE Technology Group Co Ltd
Hefei Xinsheng Optoelectronics Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BOE Technology Group Co Ltd, Hefei Xinsheng Optoelectronics Technology Co Ltd filed Critical BOE Technology Group Co Ltd
Priority to US15/327,040 priority Critical patent/US10138072B2/en
Publication of WO2017117969A1 publication Critical patent/WO2017117969A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
    • B65G43/08—Control devices operated by article or material being fed, conveyed or discharged
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
    • B65G2203/02—Control or detection
    • B65G2203/0208—Control or detection relating to the transported articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
    • B65G2203/04—Detection means
    • B65G2203/042—Sensors
    • B65G2203/044—Optical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2207/00—Indexing codes relating to constructional details, configuration and additional features of a handling device, e.g. Conveyors
    • B65G2207/40—Safety features of loads, equipment or persons

Definitions

  • the utility model relates to the technical field of transmission, in particular to a conveying device.
  • a conveyor is a common device used in the production of a product and typically includes a conveyor belt.
  • the conveyed product needs to be removed from the conveyor belt in time to prevent the conveyed product from falling from the end of the conveyor belt and being damaged.
  • the prior art transmission device further includes a sensor and a controller, wherein the sensor includes an infrared ray generator and an infrared ray receiver respectively disposed at two sides of the end of the conveyor belt, and the controller and the infrared ray receiver are connected for receiving according to infrared rays.
  • the signal that the delivered product has delivered to the end of the conveyor belt controls the conveyor to stop moving.
  • the conveying apparatus controls the conveyor belt by: when the conveyed product is not conveyed to the end of the conveyor belt, the conveyed product does not block the infrared ray emitted from the infrared ray generator, and the infrared ray receiver can receive the infrared ray,
  • the conveyor conveys normally; when the conveyed product is conveyed to the end of the conveyor, the transmitted product blocks the infrared rays emitted by the infrared generator, so that the infrared receiver cannot receive the infrared rays, and the infrared receiver feeds back to the controller that the transmitted product has been transmitted.
  • the signal to the end of the conveyor belt according to the feedback signal, the controller controls the conveyor to stop moving in time to prevent the conveyed product from falling from the end of the conveyor belt and being damaged.
  • the inventors of the present application found that when the thickness of the conveyed product is smaller than the distance between the infrared ray and the conveyor belt, even if the conveyed product has been conveyed to the end of the conveyor belt, the conveyed product cannot block the infrared ray emitted by the infrared ray generator, infrared ray.
  • the receiver is capable of receiving infrared rays, so that the conveyor belt still feeds normally, and does not function to prevent the conveyed product from falling from the end of the conveyor belt and being damaged.
  • the conveying device provided by the utility model adopts the following technical solutions:
  • the conveying device comprises a conveyor belt, a sensor and a controller, wherein the sensor comprises: a light generator and a light receiver disposed on both sides of the end of the conveyor belt; At least one baffle disposed between the light generator and the light receiver collides with the baffle when the conveyed product is delivered to the vicinity of the end of the conveyor.
  • the controller and the light receiver are connected to control the conveyor to stop moving according to a signal sent by the light receiver that is transmitted to the end of the conveyor belt, and the baffle is provided with a light transmission hole Passing light from the light generator, a gap between the lower edge of the baffle and the conveyor belt is less than a thickness of the conveyed product, the baffle along the conveyor belt when the product being transported collides The conveying direction moves to block the light emitted by the light generator.
  • the sensor comprises a light generator and a light receiver disposed on both sides of the end of the conveyor belt, and at least one baffle disposed between the light generator and the light receiver, when the conveyed product is conveyed to the vicinity of the end of the conveyor belt, the gear is struck
  • the board, the controller and the light receiver are connected to control the conveyor to stop moving according to the signal transmitted by the light receiver and transmitted to the end of the conveyor belt, and the light shielding hole is arranged on the baffle plate so that the light emitted by the light generator is worn
  • the gap between the lower edge of the baffle and the conveyor belt is smaller than the thickness of the conveyed product.
  • the baffle moves along the conveying direction of the conveyor belt to block the light emitted by the light generator.
  • the conveyed product when the conveyed product is conveyed to the vicinity of the end of the conveyor belt, the conveyed product will be in contact with the lower edge of the baffle, so that the baffle moves in the conveying direction of the conveyor belt under the top collision of the conveyed product, thereby shifting the position of the light transmitting hole, thereby
  • the baffle blocks the light from the light generator so that the light receiver cannot receive the light, and the light receiver controls Feedback is transferred to the product end of the belt signal has been sent, the controller stops the movement in time according to the feedback signal to control the conveyor, to prevent damage by falling product is transferred from the end of the belt.
  • FIG. 1 is a schematic structural view of a first conveying device in an embodiment of the present invention
  • FIG. 2 is a schematic structural view of a second conveying device in an embodiment of the present invention.
  • FIG. 3 is a schematic structural view of a support shaft in an embodiment of the present invention.
  • FIG. 4 is a schematic structural view of a baffle in an embodiment of the present invention.
  • the embodiment of the present invention provides a conveying device, as shown in FIG. 1, the conveying device comprises a conveyor belt 1, a sensor 2 and a controller 3, wherein the sensor 2 comprises a light generator 21 disposed on both sides of the end of the conveyor belt 1 and The light receiver 22, and at least one baffle (illustrated by a baffle in the figure) disposed between the light generator 21 and the light receiver 22, when the conveyed product 4 is transported to the vicinity of the end of the conveyor belt 1
  • the baffle 23 is collided.
  • the controller 3 is connected to the light receiver 22 for controlling the movement of the conveyor belt 1 according to the signal that the conveyed product 4 fed back to the conveyor belt 1 fed back by the light receiver 22 stops, and the light shielding hole 231 is provided on the shutter 23 to make the light
  • the light emitted from the generator 21 passes through, and the gap between the lower edge of the shutter 23 and the conveyor belt 1 is smaller than the thickness of the product 4 to be conveyed.
  • the shutter 23 moves in the conveying direction of the conveyor belt 1 to block the light emitted from the light generator 21.
  • the above-mentioned “movement of the baffle 23 in the conveying direction of the conveyor belt 1” includes various situations, for example, the baffle 23 can be translated in the conveying direction of the conveyor belt 1, or the baffle 23 can be rotated in the conveying direction of the conveyor belt 1. Alternatively, the baffle 23 can be translated either along the conveying direction of the conveyor belt 1 or in the conveying direction of the conveyor belt 1.
  • the baffle 23 needs to move a large distance to block the light emitted by the light generator 21, which may cause the conveyor belt 1 to stop moving in time, and the product to be conveyed 4 exists. There is still a risk of damage from the end of the conveyor belt 1; when the radius of the light transmission hole 231 is too small, a slight external disturbance (for example, airflow disturbance in the production workshop) causes the shutter 23 to move to block the light generator 21 The emitted light causes the conveyor belt 1 to stop moving, resulting in a smooth production of the product. Therefore, The radius of the light transmission hole 231 should be reasonably set according to the actual situation (for example, the size of the baffle 23).
  • an antistatic layer may be disposed on the surface of the baffle 23, so that the baffle 23 and the conveyed product 4 can be prevented from rubbing to generate static electricity, thereby preventing static electricity from being damaged to the conveyed product 4.
  • the material of the baffle 23 may be plastic, so that the weight of the baffle 23 is light, so that the conveyed product 4 can easily drive the baffle 23 to move along the conveying direction of the conveyor belt 1.
  • the material of the baffle 23 is polyvinyl chloride.
  • the senor includes the light generator 21 and the light receiver 22 disposed on both sides of the end of the conveyor belt 1, and the shutter 23 disposed between the light generator 21 and the light receiver 22, when the conveyed product is conveyed to the vicinity of the end of the conveyor belt
  • the baffle is collided, and the controller 3 is connected to the light receiver 22 for controlling the movement of the conveyor belt 1 to stop moving according to the signal that the conveyed product 4 fed back to the conveyor belt 1 fed back by the light receiver 22 is stopped.
  • the light hole 231 passes through the light emitted by the light generator 21, and the gap between the lower edge of the shutter 23 and the conveyor belt 1 is smaller than the thickness of the conveyed product 4, and the shutter 23 is along the conveyor belt 1 when the conveyed product 4 collides.
  • the conveying direction moves to block the light emitted by the light generator 21, so that when the conveyed product 4 is conveyed to the end of the conveyor belt 1, the conveyed product 4 will come into contact with the lower edge of the shutter 23, thereby colliding with the conveyed product 4
  • the lower baffle 23 moves in the conveying direction of the conveyor belt 1 to offset the position of the light transmitting hole 231, so that the baffle 23 blocks the light emitted by the light generator 21, so that the light receiver 22 cannot receive the light.
  • Line receiver 22 are transmitted to the controller 3 the feedback signal of a product 4 has been transferred to the end of conveyor belt, the controller 31 stops moving in time according to the feedback signal to control the conveyor, to prevent products 4 are transferred from a falling end of the conveyor from being damaged.
  • the conveying device in the embodiment of the present invention has the following beneficial effects: in the conveying device of the present invention, since the light generator 21 and the light receiver 22 are respectively disposed at the end of the conveyor belt 1, Side, so that when the conveyed product 4 is conveyed to the end of the conveyor belt 1, the conveyed product 4 does not come into contact with the light generator 21 or the light receiver 22, so that the light generator 21 and the light receiver 22 are not damaged. The normal use of the sensor 2 is guaranteed.
  • the senor 2 may further comprise a support shaft 5 located above the end of the conveyor belt 1 and across the conveyor belt 1, the axial direction of the support shaft 5 being at an angle greater than zero degrees between the conveying direction of the conveyor belt 1, And the baffle 23 is mounted on the support shaft 5 so that the movement of the baffle 23 in the conveying direction of the conveyor belt 1 can be achieved by the support shaft 5.
  • the inventors of the present application found that when the angle between the axial direction of the support shaft 5 and the conveying direction of the conveyor belt 1 is not 90 degrees, there may be a case where the conveyed product 4 is not conveyed to the end of the conveyor belt 1
  • the problem of the contact of the lower edge of the plate 23 causes the conveyor belt 1 to stop moving unexpectedly, so that the production of the product cannot be smoothly performed; when the angle between the axial direction of the support shaft 5 and the conveying direction of the conveyor belt 1 is 90 degrees, Regardless of the position on the conveyor belt 1 where the conveyed product 4 is placed, the conveyed product 4 can be brought into the end of the conveyor belt 1 to be in contact with the lower edge of the shutter 23, and the conveyor belt 1 does not accidentally stop moving, ensuring product production. Smooth progress. Therefore, in the embodiment of the present invention, it is preferable that the angle between the axial direction of the support shaft 5 and the conveying direction of the conveyor belt 1 is 90 degrees.
  • a specific embodiment of the movement of the baffle 23 in the conveying direction of the conveyor belt 1 by the support shaft 5 may include the following two types:
  • the support shaft 5 is movable in the conveying direction of the conveyor belt 1, and the shutter 23 is fixedly mounted on the support shaft 5, and when the conveyed product 4 is conveyed to the end of the conveyor belt 1, the conveyed product 4 is in contact with the shutter 23
  • the baffle 23 drives the support shaft 5 to move together along the conveying direction of the conveyor belt 1, thereby shifting the position of the light-transmitting hole 231 on the baffle 23, thereby enabling the baffle 23 to block the light emitted by the light generator 21.
  • the light receiver 22 is unable to receive the light, and the light receiver 22 feeds back to the controller 3 that the transmitted product 4 has been transmitted to the end of the conveyor belt 1.
  • the controller 3 controls the conveyor belt 1 to stop moving according to the feedback signal, preventing the transmission.
  • the product 4 falls from the end of the conveyor belt 1 and is damaged.
  • the support shaft 5 is moved in the conveying direction of the conveyor belt 1 in such a manner that the support shaft 5 can be translated in the conveying direction of the conveyor belt 1, and the conveying direction of the conveyor belt is the direction in which the conveyor belt conveys the conveyed product to the destination;
  • the support shaft 5 is rotatable.
  • the conveying device in the embodiment of the present invention further needs to include matching chutes and sliders disposed on both sides of the end of the conveyor belt 1, the support shaft The two ends of the 5 are fixed on the slider, so that the translation of the support shaft 5 along the conveying direction of the conveyor belt 1 can be realized by the translation of the slider in the conveying direction of the conveyor belt 1 in the sliding groove; in order to rotate the supporting shaft 5,
  • the conveying device in the embodiment of the present invention further needs to include bearings disposed on both sides of the end of the conveyor belt 1. Both ends of the support shaft 5 are installed in the inner ring of the bearing, and the rotation of the support shaft 5 can be realized by the rotation of the bearing.
  • the support shaft 5 is fixed above the end of the conveyor belt 1 and spans the conveyor belt 1.
  • the shutter 23 is pivotally mounted on the support shaft 5, and when the conveyed product 4 is conveyed to the end of the conveyor belt 1, the conveyed product 4 is blocked.
  • the plate 23 is in contact, and the baffle 23 is further rotated about the support shaft 5, Therefore, the baffle 23 blocks the light emitted by the light generator 21, so that the light receiver 22 cannot receive the light, and the light receiver 22 feeds back to the controller 3 that the transmitted product 4 has been transmitted to the end of the conveyor 1 signal, and the controller 3
  • This feedback signal promptly controls the conveyor belt 1 to stop moving, preventing the conveyed product 4 from falling from the end of the conveyor belt 1 and being damaged.
  • the conveying device in the embodiment of the present invention further needs to include a fixing seat disposed on both sides of the end of the conveyor belt 1, and both ends of the support shaft 5 are fixed to the fixing seat. on.
  • the baffle 23 is rotatable about the support shaft 5, so that the conveyed product 4 is removed from the end of the conveyor belt 1, the baffle 23 is rotated by gravity, thereby returning to its initial state.
  • the position i.e., the position at which the light-transmitting hole 231 on the shutter 23 allows the light to pass through
  • the support shaft 5 is fixed above the end of the conveyor belt 1 and spans the conveyor belt 1, and the shutter 23 is pivotally mounted on the support shaft 5.
  • the support shaft 5 when the support shaft 5 is fixed above the end of the conveyor belt 1 and spans the conveyor belt 1, and the shutter 23 is pivotally mounted on the support shaft 5, as shown in FIG. 3, the support shaft 5 may be provided with an annular card slot 51.
  • the mounting hole 232 is provided in the plate, and the mounting hole 232 of the baffle 23 is caught in the annular card slot 51 and rotatable relative to the support shaft 5, so that the annular slot 51 can restrict the baffle 23 in the axial direction of the support shaft 5.
  • the movement so that the flapper 23 can always be located in the set area above the end of the conveyor belt 1 ensures that the conveyed product 4 can come into contact with the lower edge of the flapper 23 when the conveyed product 4 is conveyed to the end of the conveyor belt 1.
  • the width of the annular card slot 51 should be slightly larger than the thickness of the baffle 23, so that the baffle 23 can be caught in the annular card slot 51, and the fit between the baffle 23 and the annular card slot 51 is a clearance fit. Therefore, the conveyed product 4 can easily drive the baffle 23 to rotate around the support shaft 5, thereby avoiding the situation that the baffle 23 and the annular card slot 51 are too tight to rotate.
  • the mounting hole 232 includes a first sub-mounting hole 2321 and a second sub-mounting hole 2322 that are in communication with each other.
  • the first sub-mounting hole 2321 is located above the second sub-mounting hole 2322, and the first sub-mounting is performed.
  • the radius of the hole 2321 is smaller than the radius of the support shaft 5, and is larger than
  • the radius of the position of the ring-shaped card slot 51 on the support shaft 5 is located in the first sub-mounting hole 2321 at the position of the ring-shaped card slot 51 on the support shaft 5, so that the baffle 23 can be relatively stably stuck in the ring-shaped card slot 51.
  • the process of assembling the baffle 23 as shown in FIG. 4 on the support shaft 5 as shown in FIG. 3 is as follows: First, the support shaft 5 is passed through the second sub-mounting hole 2322 on the baffle 23 until the support shaft 5 is attached. The position of the annular card slot 51 is aligned with the second sub-mounting hole 2322, and then the support shaft 5 is lifted up so that the annular card slot 51 of the support shaft 5 is caught in the first sub-mounting hole 2321.
  • the baffle 23 is a rectangular parallelepiped, the length of the baffle 23 is 39.8 mm to 40.2 mm, the width of the baffle 23 is 19.8 mm to 20.2 mm, and the thickness of the baffle 23 is 2.8 mm to 3.2 mm, and the light transmission hole 231
  • the radius of the annular card slot 51 is 3 mm to 4 mm
  • the radius of the first sub-mounting hole 2321 is 3.5 mm to 4.5 mm
  • the radius of the second sub-mounting hole 2322 is 4.5 mm to 5.5 mm.
  • the radius of the support shaft 5 is 4 mm to 5 mm
  • the radius at the position of the annular card groove 51 on the support shaft 5 is 3 mm to 4 mm.
  • the width of the annular slot 51 should be greater than the thickness of the baffle 23 to enable the baffle 23 to be caught in the annular slot 51, for example, when blocking When the thickness of the plate 23 is 3.2 mm, the width of the annular groove 51 should be greater than 3.2 mm and less than or equal to 4 mm.
  • the baffle 23 has a corresponding constraint relationship with the specific dimensions of other parts of the support shaft 5, and details are not described herein.
  • the number of the baffles 23 is preferably two or more, and the baffles 23 are equally spaced on the support shaft 5 so that no matter which position the product 4 to be conveyed is placed on the conveyor belt 1,
  • the conveyed product 4 will come into contact with the lower edge of the baffle 23, so that the conveyed product 4 will drive the baffle 23 to move along the conveying direction of the conveyor belt 1, so that the light transmitting hole 231 is
  • the position is offset so that the baffle 23 can block the light emitted by the light generator 21, so that the light receiver 22 cannot receive the light, and the light receiver 22 feeds back to the controller 3 that the transferred product 4 has been transported to the end of the conveyor belt 1.
  • the controller 3 controls the conveyor belt 1 to stop moving in time to prevent the conveyed product 4 from falling from the end of the conveyor belt 1 and being damaged.
  • the number of the baffles 23 is related to the size of the product to be transported 4. When the size of the product to be transported 4 is small, the number of the baffles 23 should be large; when the size of the product to be transported 4 is large, the baffle 23 The number can be less.

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  • Control Of Conveyors (AREA)

Abstract

一种传送装置，包括传送带（1）、传感器（2）和控制器（3），传感器（2）包括设置于传送带（1）末端两侧的光线发生器（21）和光线接收器（22），以及设置于光线发生器（21）和光线接收器（22）之间的挡板（23），控制器（3）和光线接收器（22）连接，挡板（23）上设有透光孔（231）以使光线发生器（21）发出的光线穿过，挡板（23）的下边缘与传送带（1）之间的间隙小于被传送产品（4）的厚度，并在被传送产品（4）的顶撞下挡板（23）可沿传送带（1）的输料方向移动，阻挡光线发生器（21）发出的光线，控制器（3）收到信号后控制传送带（1）停止移动。

Description

传送装置 技术领域
本实用新型涉及传送技术领域，尤其涉及一种传送装置。
背景技术
传送装置是产品的生产过程中的一种常用设备，通常包括传送带。在实际生产过程中，在被传送产品传送至传送带末端之前，需要及时将被传送产品从传送带上取走，防止被传送产品从传送带末端跌落而损伤。
为解决该问题，现有的传送装置还包括传感器和控制器，其中，传感器包括分别设置于传送带末端两侧的红外线发生器和红外线接收器，控制器和红外线接收器连接，用于根据红外线接收器反馈的被传送产品已传送至传送带末端的信号控制传送带停止移动。具体地，具有上述结构的传送装置通过以下方式对传送带进行控制：当被传送产品未传送至传送带末端时，被传送产品不会遮挡红外线发生器所发出的红外线，红外线接收器能够接收到红外线，传送带正常输料；当被传送产品传送至传送带末端时，被传送产品会遮挡红外线发生器所发出的红外线，使红外线接收器无法接收到红外线，红外线接收器会向控制器反馈被传送产品已传送至传送带末端的信号，控制器根据该反馈信号及时控制传送带停止移动，防止被传送产品从传送带末端跌落而损伤。
然而，本申请的发明人发现，当被传送产品的厚度小于红外线与传送带之间的距离时，即使被传送产品已经传送至传送带末端，被传送产品也无法遮挡红外线发生器所发出的红外线，红外线接收器能够接收到红外线，使传送带仍然正常输料，无法起到防止被传送产品从传送带末端跌落而损伤的作用。
实用新型内容
本实用新型的目的在于提供一种传送装置，用于防止被传送产品从传送带末端跌落而损伤。
为达到上述目的，本实用新型提供的传送装置采用如下技术方案：
该传送装置包括传送带、传感器和控制器，其中，所述传感器包括：设置于所述传送带末端两侧的光线发生器和光线接收器；以及设 置于所述光线发生器和所述光线接收器之间的至少一个挡板，当被传送产品传送至传送带末端附近时顶撞所述挡板。所述控制器和所述光线接收器连接，用于根据所述光线接收器反馈的被传送产品已传送至传送带末端的信号控制所述传送带停止移动，所述挡板上设有透光孔以使所述光线发生器发出的光线穿过，所述挡板的下边缘与所述传送带之间的间隙小于被传送产品的厚度，当被传送产品顶撞时，所述挡板沿所述传送带的输料方向运动，以阻挡所述光线发生器发出的光线。
由于传感器包括设置于传送带末端两侧的光线发生器和光线接收器，以及设置于光线发生器和光线接收器之间的至少一个挡板，当被传送产品传送至传送带末端附近时顶撞所述挡板，控制器和光线接收器连接，用于根据光线接收器反馈的被传送产品已传送至传送带末端的信号控制传送带停止移动，挡板上设有透光孔以使光线发生器发出的光线穿过，挡板的下边缘与传送带之间的间隙小于被传送产品的厚度，当被传送产品的顶撞时，挡板沿传送带的输料方向运动，以阻挡光线发生器发出的光线，因此，当被传送产品传送至传送带末端附近时，被传送产品将与挡板的下边缘接触，从而在被传送产品的顶撞下挡板沿传送带的输料方向运动，使透光孔的位置偏移，从而使挡板阻挡光线发生器发出的光线，使光线接收器无法接收到光线，光线接收器会向控制器反馈被传送产品已传送至传送带末端信号，控制器根据该反馈信号及时控制传送带停止移动，防止被传送产品从传送带末端跌落而损伤。
附图说明
为了更清楚地说明本实用新型实施例或现有技术中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本实用新型的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本实用新型实施例中的第一种传送装置的结构示意图；
图2为本实用新型实施例中的第二种传送装置的结构示意图；
图3为本实用新型实施例中的支撑轴的结构示意图；
图4为本实用新型实施例中的挡板的结构示意图。
附图标记说明：
1-传送带；        2-传感器；           21-光线发生器；
22-光线接收器；   23-挡板；            231-透光孔；
232-安装孔；      2321-第一子安装孔；  2322-第二子安装孔；
3-控制器；        4-被传送产品；       5-支撑轴；
51-环形卡槽。
具体实施方式
下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本实用新型一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本实用新型保护的范围。
本实用新型实施例提供了一种传送装置，如图1所示，该传送装置包括传送带1、传感器2和控制器3，其中，传感器2包括设置于传送带1末端两侧的光线发生器21和光线接收器22，以及设置于光线发生器21和光线接收器22之间的至少一个挡板(图中以一个挡板为例进行说明)23，当被传送产品4传送至传送带1末端附近时顶撞所述挡板23。控制器3和光线接收器22连接，用于根据光线接收器22反馈的被传送产品4已传送至传送带1末端的信号控制传送带1停止移动，挡板23上设有透光孔231以使光线发生器21发出的光线穿过，挡板23的下边缘与传送带1之间的间隙小于被传送产品4的厚度。当被传送产品4顶撞时，挡板23沿传送带1的输料方向运动，以阻挡光线发生器21发出的光线。
其中，上述“挡板23沿传送带1的输料方向运动”包括多种情形，例如，挡板23可沿传送带1的输料方向平移，或者，挡板23可沿传送带1的输料方向转动，或者，挡板23既可沿传送带1的输料方向平移，也可沿传送带1的输料方向转动。
需要注意的是，当透光孔231的半径过大时，挡板23需要运动较大的距离才能遮挡住光线发生器21发出的光线，容易导致传送带1不能及时停止移动，存在被传送产品4仍然会从传送带1末端跌落而损伤的风险；当透光孔231的半径过小时，外界轻微的扰动(例如，生产车间里的气流扰动)就会使挡板23运动而遮挡住光线发生器21发出的光线，使传送带1停止移动，导致产品生产不能顺利进行。因此， 透光孔231的半径应根据实际情况(例如挡板23的尺寸)进行合理地设置。
此外，挡板23的表面上还可以设置有防静电层，从而可以避免挡板23和被传送产品4摩擦产生静电，进而能够防止静电对被传送产品4造成损伤。另外，挡板23的材质可以为塑料，使挡板23的重量较轻，从而使被传送产品4较容易带动挡板23沿传送带1的输料方向运动。示例性地，挡板23的材质为聚氯乙烯。
由于传感器包括设置于传送带1末端两侧的光线发生器21和光线接收器22，以及设置于光线发生器21和光线接收器22之间的挡板23，当被传送产品传送至传送带末端附近时顶撞所述挡板，控制器3和光线接收器22连接，用于根据光线接收器22反馈的被传送产品4已传送至传送带1末端的信号控制传送带1停止移动，挡板23上设有透光孔231以使光线发生器21发出的光线穿过，挡板23的下边缘与传送带1之间的间隙小于被传送产品4的厚度，当被传送产品4顶撞时挡板23沿传送带1的输料方向运动，阻挡光线发生器21发出的光线，因此，当被传送产品4传送至传送带1末端时，被传送产品4将与挡板23的下边缘接触，从而在被传送产品4的顶撞下挡板23沿传送带1的输料方向运动，使透光孔231的位置偏移，从而使挡板23阻挡光线发生器21发出的光线，使光线接收器22无法接收到光线，光线接收器22会向控制器3反馈被传送产品4已传送至传送带1末端的信号，控制器3根据该反馈信号及时控制传送带1停止移动，防止被传送产品4从传送带1末端跌落而损伤。
本实用新型实施例中的传送装置除具有以上有益效果外，还具有如下有益效果：在本实用新型中的传送装置中，由于光线发生器21和光线接收器22分别设置于传送带1末端的两侧，从而当被传送产品4传送至传送带1末端时，被传送产品4不会与光线发生器21或者光线接收器22接触，使光线发生器21和光线接收器22均不会被撞坏，保证了传感器2的正常使用。
此外，如图2所示，传感器2还可以包括位于传送带1末端上方且横跨传送带1的支撑轴5，支撑轴5的轴向与传送带1的输料方向之间有大于零度的夹角，且挡板23安装在支撑轴5上，从而可以通过支撑轴5实现挡板23沿传送带1的输料方向的运动。
其中，本申请的发明人发现，当支撑轴5的轴向与传送带1的输料方向之间的夹角不为90度时，可能会存在被传送产品4未传送至传送带1末端就与挡板23的下边缘接触的问题，导致传送带1意外停止移动的状况出现，使产品生产不能顺利进行；当支撑轴5的轴向与传送带1的输料方向之间的夹角为90度时，无论被传送产品4放置于传送带1上的哪个位置，被传送产品4只有传送至传送带1末端才能与挡板23的下边缘接触，不会导致传送带1意外停止移动的状况出现，保证了产品生产的顺利进行。因此，本实用新型实施例中优选，支撑轴5的轴向与传送带1的输料方向之间的夹角为90度。
进一步地，通过支撑轴5实现挡板23沿传送带1的输料方向的运动的具体的实施方式可以包括以下两种：
实施方式一，支撑轴5可沿传送带1的输料方向运动，挡板23固定地安装在支撑轴5上，当被传送产品4传送至传送带1末端时，被传送产品4与挡板23接触，进而使挡板23带动支撑轴5一起沿传送带1的输料方向运动，从而使挡板23上的透光孔231的位置偏移，进而使得挡板23能够遮挡光线发生器21发出的光线，使光线接收器22无法接收到光线，光线接收器22会向控制器3反馈被传送产品4已传送至传送带1末端信号，控制器3根据该反馈信号及时控制传送带1停止移动，防止被传送产品4从传送带1末端跌落而损伤。
支撑轴5沿传送带1的输料方向运动的方式可以为：支撑轴5可沿传送带1的输料方向平移，传送带的输料方向也就是传送带将被传送的产品传送至目的地的方向；或者，支撑轴5可转动。示例性地，为了使支撑轴5可沿传送带1的输料方向平移，本实用新型实施例中的传送装置还需要包括设置于传送带1末端两侧的相匹配的滑槽和滑块，支撑轴5的两端固定在滑块上，进而可以通过滑块在滑槽中沿传送带1的输料方向的平移，实现支撑轴5沿传送带1的输料方向的平移；为了使支撑轴5转动，本实用新型实施例中的传送装置还需要包括设置于传送带1末端两侧的轴承，支撑轴5的两端安装在轴承的内圈中，进而可以通过轴承的转动，实现支撑轴5的转动。
实施方式二，支撑轴5固定在传送带1末端上方且横跨传送带1，挡板23枢转安装在支撑轴5上，当被传送产品4传送至传送带1末端时，被传送产品4会与挡板23接触，进而使挡板23绕支撑轴5转动， 从而使挡板23遮挡光线发生器21发出的光线，使光线接收器22无法接收到光线，光线接收器22会向控制器3反馈被传送产品4已传送至传送带1末端信号，控制器3根据该反馈信号及时控制传送带1停止移动，防止被传送产品4从传送带1末端跌落而损伤。示例性地，为了实现支撑轴5在传送带1末端上方的固定，本实用新型实施例中的传送装置还需要包括设置于传送带1末端两侧的固定座，支撑轴5的两端固定在固定座上。
其中，在上述实施方式二中，由于挡板23可以绕支撑轴5转动，从而使得被传送产品4从传送带1末端取走后，挡板23会在重力的作用下转动，进而恢复到其初始位置(即挡板23上的透光孔231可以使光线穿过的位置)，不需要通过外力使挡板23恢复到初始位置，从而可以节约生产时间和生产成本。因此，本实用新型实施例中优选支撑轴5固定在传送带1末端上方且横跨传送带1，挡板23枢转安装在支撑轴5上。
当然，通过支撑轴5实现挡板23沿传送带1的输料方向运动的具体实施方式不局限于以上两种，本领域技术人员也可以采用其他合理的实施方式，本实用新型实施例不再一一赘述。
另外，当支撑轴5固定在传送带1末端上方且横跨传送带1，挡板23枢转安装在支撑轴5上时，如图3所示，支撑轴5上可以设有环形卡槽51，挡板上设置有安装孔232，挡板23的安装孔232卡在环形卡槽51中，并可相对支撑轴5转动，从而使环形卡槽51能够限制挡板23在支撑轴5的轴向上的移动，从而使挡板23始终可以位于传送带1末端上方的设定区域内，保证了被传送产品4传送至传送带1末端时，被传送产品4能够与挡板23的下边缘接触。
具体地，环形卡槽51的宽度应略大于挡板23的厚度，从而使挡板23能够卡在环形卡槽51中，且使得挡板23与环形卡槽51之间的配合为间隙配合，从而使得被传送产品4能够较容易带动挡板23绕支撑轴5转动，避免因挡板23与环形卡槽51之间的配合过紧而无法转动的状况出现。
进一步地，如图4所示，安装孔232包括相互连通的第一子安装孔2321和第二子安装孔2322，第一子安装孔2321位于第二子安装孔2322的上方，第一子安装孔2321的半径小于支撑轴5的半径，且大于 支撑轴5上环形卡槽51所在位置处的半径，支撑轴5上环形卡槽51所在位置处卡在第一子安装孔2321中，进而使挡板23能够较为稳定地卡在环形卡槽51中，从而可以防止挡板23在绕支撑轴5转动的过程中从环形卡槽51中脱离，从而使环形卡槽51能够更好地限制挡板23在支撑轴5的轴向上的移动。
将如图4所示的挡板23组装在如图3所示的支撑轴5上的过程如下：首先将支撑轴5穿过挡板23上的第二子安装孔2322，直到支撑轴5上环形卡槽51所在位置与第二子安装孔2322相对准，然后将支撑轴5向上提，以使支撑轴5上环形卡槽51卡在第一子安装孔2321中。
此外，为便于本领域的技术人员具体实施，下面对挡板23与支撑轴5的具体尺寸做举例说明。
示例性地，挡板23为长方体，挡板23的长度为39.8毫米～40.2毫米，挡板23的宽度为19.8毫米～20.2毫米，挡板23的厚度为2.8毫米～3.2毫米，透光孔231的半径为2.5毫米～3.5毫米，环形卡槽51的宽度为3毫米～4毫米，第一子安装孔2321的半径为3.5毫米～4.5毫米，第二子安装孔2322的半径为4.5毫米～5.5毫米，支撑轴5的半径为4毫米～5毫米，支撑轴5上环形卡槽51所在位置处的半径为3毫米～4毫米。
需要说明的是，对具体的挡板23与支撑轴5来说，上述环形卡槽51的宽度应大于挡板23的厚度以使挡板23能够卡在环形卡槽51中，例如，当挡板23的厚度为3.2毫米时，环形卡槽51的宽度应大于3.2毫米，且小于或者等于4毫米。类似地，挡板23与支撑轴5中其它部位的具体尺寸也存在相应的约束关系，此处不再进行赘述。
此外，本实用新型实施例中优选挡板23的数量为两个以上，且各挡板23等间隔安装在支撑轴5上，从而使无论将被传送产品4放置在传送带1上哪个位置，被传送产品4传送至传送带1末端时，被传送产品4均会与挡板23的下边缘接触，从而被传送产品4会带动挡板23沿传送带1的输料方向运动，使透光孔231的位置偏移，从而使挡板23能够遮挡光线发生器21所发出的光线，使光线接收器22无法接收到光线，光线接收器22会向控制器3反馈被传送产品4已传送至传送带1末端信号，控制器3根据该反馈信号及时控制传送带1停止移动，防止被传送产品4从传送带1末端跌落而损伤。
其中，上述挡板23的数量与被传送产品4的尺寸有关，当被传送产品4的尺寸较小时，挡板23的数量应较多；当被传送产品4的尺寸较大时，挡板23的数量可以较少。
以上所述，仅为本实用新型的具体实施方式，但本实用新型的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本实用新型揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本实用新型的保护范围之内。因此，本实用新型的保护范围应以所述权利要求的保护范围为准。

Claims (11)

  1. 一种传送装置，包括传送带、传感器和控制器，其特征在于，所述传感器包括：设置于所述传送带末端两侧的光线发生器和光线接收器；以及设置于所述光线发生器和所述光线接收器之间的至少一个挡板，当被传送产品传送至传送带末端附近时顶撞至少一个所述挡板，其中，所述控制器和所述光线接收器连接，用于根据所述光线接收器反馈的被传送产品已传送至传送带末端的信号控制所述传送带停止移动，所述挡板上设有透光孔以使所述光线发生器发出的光线穿过，所述挡板的下边缘与所述传送带之间的间隙小于被传送产品的厚度；当被传送产品顶撞时，所述挡板沿所述传送带的输料方向运动，以阻挡所述光线发生器发出的光线。
  2. 根据权利要求1所述的传送装置，其特征在于，所述传感器还包括位于所述传送带末端的上方且横跨所述传送带的支撑轴，所述支撑轴的轴向与所述传送带的输料方向之间有大于零度的夹角，所述挡板安装在所述支撑轴上。
  3. 根据权利要求2所述的传送装置，其特征在于，所述至少一个挡板的数量为两个以上，各挡板等间隔安装在所述支撑轴上。
  4. 根据权利要求2或3所述的传送装置，其特征在于，所述支撑轴的轴向与所述传送带的输料方向之间的夹角为90度，所述支撑轴可沿所述传送带的输料方向运动，所述挡板固定地安装在所述支撑轴上。
  5. 根据权利要求2或3所述的传送装置，其特征在于，所述支撑轴的轴向与所述传送带的输料方向之间的夹角为90度，所述支撑轴固定，所述挡板可动地安装在所述支撑轴上。
  6. 根据权利要求5所述的传送装置，其特征在于，所述支撑轴上设有环形卡槽，所述挡板上设置有安装孔，所述挡板的安装孔安装在所述环形卡槽中，并可相对所述支撑轴转动。
  7. 根据权利要求6所述的传送装置，其特征在于，所述挡板的厚度为2.8毫米～3.2毫米，所述环形卡槽的宽度为3毫米～4毫米。
  8. 根据权利要求6所述的传送装置，其特征在于，所述安装孔包括相互连通的第一子安装孔和第二子安装孔，所述第一子安装孔位于所述第二子安装孔的上方，所述第一子安装孔的半径小于所述支撑轴 的半径，且大于所述支撑轴上所述环形卡槽所在位置处的半径，所述支撑轴上所述环形卡槽卡在所述第一子安装孔中。
  9. 根据权利要求8所述的传送装置，其特征在于，所述第一子安装孔的半径为3.5毫米～4.5毫米，所述第二子安装孔的半径为4.5毫米～5.5毫米，所述支撑轴的半径为4毫米～5毫米，所述支撑轴上所述环形卡槽所在位置处的半径为3毫米～4毫米。
  10. 根据权利要求1所述的传送装置，其特征在于，所述挡板为长方体，所述挡板的长度为39.8毫米～40.2毫米，所述挡板的宽度为19.8毫米～20.2毫米，所述透光孔的半径为2.5毫米～3.5毫米。
  11. 根据权利要求1所述的传送装置，其特征在于，所述挡板的表面上设有防静电层。
PCT/CN2016/090405 2016-01-04 2016-07-19 传送装置 Ceased WO2017117969A1 (zh)

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