Railcar

Abstract

The present invention discloses a rail vehicle for traveling on a track, wherein the bottom surface of the traveling track has a code pasting area, and the rail vehicle comprises: a vehicle frame, a bearing member and a code pasting mechanism. The vehicle frame is suspended on the traveling track and can move along the traveling track, the bearing member is arranged on the vehicle frame, the bearing member can rise close to or fall away from the bottom surface, the code pasting mechanism is used to paste the information code separated from the bar code tape on the code pasting area, the code pasting mechanism is connected to the bearing member, the code pasting mechanism comprises a first wheel, the first wheel can be driven by the bearing member to rise and rotate along the bottom surface to enable the code pasting mechanism. The present invention can solve the problem that manual pasting of information codes is time-consuming and laborious and the position of the manually pasted information codes has a large error, and avoids the problem that the speed of the bar code tape being conveyed is inconsistent with the traveling speed of the vehicle frame due to the use of a motor or the like to drive the bar code tape, thereby causing the information codes on the bar code tape to be stacked or torn off.

Description

Technical Field

[0001] The invention relates to the field of automatic material handling systems, and in particular to a rail vehicle. Background Art

[0002] The automatic material handling system, also known as the overhead crane system, is widely used in semiconductor wafer factories. The overhead crane system includes a track and an overhead crane that can travel on the track. The track is provided with an information code with location information. The overhead crane travels or stays at the position where the wafer box needs to be picked up and placed by scanning the information code on the track. When attaching the information code to the track, since the track is long and set in the air, the manual process of the staff sticking the information code to the track is not only time-consuming and laborious, but also easily causes a large error between the position where the staff sticks the information code and the predetermined sticking position. This error causes the overhead crane to be unable to effectively read the information code and obtain the position of the overhead crane, which in turn affects the overhead crane's placement of the wafer box. Summary of the invention

[0003] In order to overcome the above-mentioned shortcomings, an embodiment of the present invention provides a rail vehicle, which can solve the problem that manual affixing of information codes is time-consuming and labor-intensive and that the position of manually affixed information codes has large errors. At the same time, the rail vehicle can avoid using a motor or the like to drive the barcode tape, which may cause the speed at which the barcode tape is transported to be inconsistent with the walking speed of the frame, thereby causing the information codes on the barcode tape to be stacked or torn off.

[0004] The rail vehicle according to an embodiment of the present invention is used for a running track, wherein the bottom surface of the running track has a code sticking area, and the rail vehicle comprises: a frame, which is suspended from the running track and can move along the running track; a bearing member, which is arranged on the frame, and the bearing member is configured to rise to approach or fall away from the bottom surface; a code sticking mechanism, which is used to stick the information code separated from the bar code tape to the code sticking area, and the code sticking mechanism is connected to the bearing member, and the code sticking mechanism comprises a first wheel, and the first wheel can be driven by the bearing member to rise and rotate along the bottom surface to enable the code sticking mechanism.

[0005] In one or more embodiments, the code attaching mechanism further includes a second wheel, and the second wheel is driven by the first wheel to reel up the base paper separated from the bar code tape.

[0006] In one or more embodiments, the first wheel is connected to the second wheel via a first torque transmission component including a first torque limiting member, the code sticking mechanism further includes a third wheel wound with the bar code tape, the first wheel is connected to the third wheel via a second torque transmission component including a second torque limiting member, and the torque value of relative slippage between the first wheel and the second wheel allowed by the first torque limiting member is smaller than the torque value of relative slippage between the first wheel and the third wheel allowed by the second torque limiting member.

[0007] In one or more embodiments, the carrier includes a fixed portion having an inclined guide surface configured on the frame and a movable portion that moves up along the guide surface to approach the code pasting area or moves down to move away from the code pasting area; the code pasting mechanism is configured on the side of the movable portion and moves synchronously with the movable portion.

[0008] In one or more embodiments, the code attaching mechanism further includes:

[0009] A stripping member, obliquely arranged on the side surface of the carrier and located relatively to the rear of the second wheel in the forward direction of the carrier, the base paper passing through the stripping member and being rolled up on the second wheel;

[0010] The roller pressing wheel is arranged on the side surface of the carrier and is relatively located at the rear side of the stripping member in the advancing direction. The roller pressing wheel is driven upward by the carrier and abuts against the bottom surface of the walking track to roll and press the information code on the code sticking area.

[0011] In one or more embodiments, the fixed part is provided with a first limit member and a second limit member on the side, the movable part is provided with a third limit member located between the first limit member and the second limit member on the side, the movable part has a first position and a second position, in the first position, the third limit member abuts against the first limit member, the first wheel abuts against the walking track, and a gap is allowed between the stripping member and the walking track, in the second position, the third limit member abuts against the second limit member, and the first wheel is away from the walking track at a predetermined distance.

[0012] In one or more embodiments, the code sticking mechanism further includes a cutting knife which is arranged between the roller wheel and the peeling member and can move in the height direction to cut off the information code.

[0013] In one or more embodiments, the stripping member has a guide portion and a mounting portion, and the guide portion at least partially extends out of a top end of the moving portion.

[0014] In one or more embodiments, the peeling member is an elastic thin plate, and the peeling member is deflected counterclockwise relative to the vertical direction at one end around which the base paper is wound to form an angle of 60-80°.

[0015] In one or more embodiments, the rail vehicle further includes a detection component disposed on the vehicle frame, the detection component including a first ranging sensor, a second ranging sensor, a third ranging sensor, and a fourth ranging sensor, the traveling track including a first track and a second track disposed in parallel, the first ranging sensor and the second ranging sensor being used to detect the distance to two adjacent surfaces of the first track, and the third ranging sensor and the fourth ranging sensor being used to detect the distance to two adjacent surfaces of the second track. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the rail vehicle when it is suspended on the running track.

[0017] Figure 2 A schematic diagram of the three-dimensional structure of a rail vehicle.

[0018] Figure 3 It is a front view of the connection between the coding mechanism and the bearing member when the moving part moves to the highest point on the fixed part.

[0019] Figure 4 It is a front view of the connection between the coding mechanism and the bearing member when the moving part moves to the lowest point on the fixed part.

[0020] Figure 5 It is a rear view of the connection between the code sticking mechanism and the carrier when the moving part moves to the highest point on the fixed part.

[0021] Figure 6 It is a three-dimensional schematic diagram of the connection between the coding mechanism and the carrier.

[0022] Figure 7 for Figure 6 A partial enlarged view of point A in the middle.

[0023] Figure 8 It is a top view of the connection between the coding mechanism and the carrier.

[0024] Fig. 9 It is a three-dimensional schematic diagram of the connection between the coding mechanism and the carrier from another perspective.

[0025] Fig.10 A second embodiment of the first torque transmission component and the second torque transmission component.

[0026] Fig.11 This is a diagram showing the position relationship between the detection component and the walking track.

[0027] Fig.12 This is a schematic diagram of the first track when it is offset.

[0028] Fig.13 This is a positional relationship diagram of the first distance measuring sensor, the second distance measuring sensor and the first track.

[0029] Fig.14 Schematic diagram of the clockwise deflection of the first track.

[0030] Fig.15 Schematic diagram of the counterclockwise deflection of the first track. DETAILED DESCRIPTION

[0031] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0032] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "front", "rear" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0033] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "disposed", "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. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] like Figures 1 to 15 As shown, the rail vehicle according to the embodiment of the present invention is used for the running track 1, and the bottom surface 101 of the running track 1 has a code sticking area. The rail vehicle includes: a frame 2, a bearing 3 and a code sticking mechanism 4. The frame 2 is suspended on the running track 1 and can move along the running track 1. The bearing 3 is arranged on the frame 2. The bearing 3 is configured to rise close to or fall away from the bottom surface 101. The code sticking mechanism 4 is used to stick the information code 51 separated from the bar code tape 5 to the code sticking area. The code sticking mechanism 4 includes a first wheel 411. The first wheel 411 can be driven by the bearing 3 to rise and rotate along the bottom surface 101 to enable the code sticking mechanism 4.

[0035] See also Figures 1 to 4The carrier 3 is arranged on the frame 2. The carrier 3 can rise on the frame 2 to approach the coding area of ​​the bottom surface 101 of the running track 1, or fall and move away from the coding area of ​​the bottom surface 101 of the running track 1. The coding mechanism 4 is connected to the carrier 3. The coding mechanism 4 and the carrier 3 rise and fall synchronously. The coding mechanism 4 includes a first wheel 411. The first wheel 411 is driven to rise by the carrier 3 and can contact the bottom surface 101 of the running track 1. When the coding mechanism 4 moves along the running track 1 with the frame 2, the first wheel 411 can rotate relative to the bottom surface 101 of the running track 1. The rotating first wheel 411 can provide conveying power for the barcode tape 5, and the conveying power can be transmitted to the part of the coding mechanism 4 that conveys the barcode tape 5. Therefore, the transmitted barcode tape 5 can be automatically transmitted as the frame 2 moves on the running track 1.

[0036] The present application controls the support member 3 to rise and makes the first wheel 411 abut against the bottom surface 101 of the running track 1, so that the first wheel 411 can be rotated by means of the friction between the two. A rack can also be set on the bottom surface 101 of the running track 1, and teeth matching the rack can be set on the circumference of the first wheel to realize the rotation of the first wheel 411 relative to the running track 1. In this way, the use of a motor that needs to control the speed as the power for transmitting the barcode tape 5 can be avoided.

[0037] By means of the bottom surface 101 of the walking track 1, the first wheel 411 is rotated, and the linear speed of the rotating first wheel 411 can be kept consistent with the moving speed of the frame 2 on the track 1. The rotating first wheel 411 can provide conveying power for the barcode tape 5 and provide a transmission linear speed consistent with the walking speed of the frame 2 on the walking track 1. In this way, it can be avoided that the barcode tape 5 is pulled manually or the barcode tape 5 is driven by a motor, which may cause the linear speed of the barcode tape 5 to be inconsistent with the walking speed of the frame 2. For example, it can be avoided that when the linear speed of the barcode tape 5 is driven is greater than the walking speed of the frame 2 on the walking track 1, the information code 51 on the barcode tape 5 will be easily stacked on the walking track, and the released longer barcode tape 5 will be easily disturbed by the airflow, causing the information code 51 to be pasted and skewed; for example, it can be avoided that when the linear speed of the barcode tape 5 is driven is less than the walking speed of the frame 2, the information code 51 on the barcode tape 5 will be easily torn off.

[0038] In one or more embodiments, the code attaching mechanism 4 further includes a second wheel 412 , and the second wheel 412 is driven by the first wheel 411 to reel up the base paper 52 separated from the barcode tape 5 .

[0039] See also Figure 3 , Figure 8 and Fig. 9The first wheel 411 can transmit power to the second wheel 412 by belt transmission, gear transmission, or coaxial connection transmission. The present embodiment does not limit the transmission form. After the first wheel 411 transmits power to the second wheel 412, the second wheel 412 can rotate synchronously with the frame 2 when it moves on the running track 1. At the same time, by setting the transmission ratio between the first wheel 411 and the second wheel 412, the linear speed of the bottom paper 52 of the barcode tape 5 rolled up by the second wheel 412 can be the same as the running speed of the frame 2. When the second wheel 412 rolls up the bottom paper 52, it will pull the barcode tape 5 to move along the pasting direction of the information code 51, that is, to transport the barcode tape 5 to the rear relative to the front of the running frame 2. Since the second wheel 412 not only transports the barcode tape 5 but also reels the base paper 52, and the linear speed of the base paper 52 of the barcode tape 5 reeled by the second wheel 412 is the same as the speed of the frame 2 traveling, the speed at which the information code 51 separated from the transported barcode tape 5 is pasted is the same as the speed at which the frame 2 travels, and the information code 51 is not easily torn or stacked during the pasting process.

[0040] See also Figures 1 to 4 When there is no need to attach the information code 51 to the running track 1, the supporting member 3 is controlled to drive the code sticking mechanism 4 to move downward so that the first wheel 411 is separated from the bottom surface 101 of the running track 1. At this time, the barcode tape 5 is relatively far away from the bottom surface 101 of the running track 1.

[0041] As the length of the pasted information code 51 increases, the diameter of the bottom paper 52 rolled up by the second wheel 412 becomes larger and larger, and the linear speed of the bottom paper 52 rolled up by the second wheel 412 driven by the first wheel 411 becomes larger and larger, which makes the rolled up length of the bottom paper 52 greater than the length of the information code 51 that needs to be pasted (the length of the frame 2 that needs to be traveled), and the difference between the rolled up length of the bottom paper 52 and the length of the information code 51 that needs to be pasted will gradually increase with the increase of the pasting length, thereby causing the information code 51 to gradually stack when being pasted.

[0042] To this end, in one or more embodiments, the first wheel 411 is connected to the second wheel 412 via a first torque transmission component including a first torque limiter 416, the coding mechanism 4 also includes a third wheel 413 wound with a barcode tape 5, the first wheel 411 is connected to the third wheel 413 via a second torque transmission component including a second torque limiter 417, and the torque value of the relative slip between the first wheel 411 and the second wheel 412 allowed by the first torque limiter 416 is smaller than the torque value of the relative slip between the first wheel 411 and the third wheel 412 allowed by the second torque limiter 417.

[0043] When the information code 51 needs to be pasted, the bearing member 3 drives the first wheel 411 to rise and contact the bottom surface 101 of the running track 1. When the frame 2 is running, the first wheel 411 is rotated by the friction of the bottom surface 101. The first wheel 411 is connected to the second wheel 412 through the first torque transmission component. The first wheel 411 can transmit part of the power to the second wheel 412. The driven second wheel 412 can reel up the bottom paper 52 on the barcode tape 5. The first wheel 411 is connected to the third wheel 413 through the second torque transmission component. The first wheel 411 can transmit another part of the power to the third wheel 413. The driven third wheel 413 rotates to release the barcode tape 5 wound on the third wheel 413.

[0044] During the process of pasting the information code 51, since the diameter of the second wheel 412 rolling up the bottom paper 52 becomes larger and larger, the linear speed of the second wheel 412 rolling up the bottom paper 52 tends to be faster than the linear speed of the first wheel 411 (the linear speed of the frame 2 walking on the walking track 1). At the same time, since the diameter of the barcode tape 5 wound on the third wheel 413 becomes smaller and smaller during the process of releasing the barcode tape 5, the linear speed of the third wheel 413 releasing the barcode tape 5 tends to be slower than the linear speed of the first wheel 411. The third wheel 413 forms a resistance to the rotation of the second wheel 412 through the barcode tape 5 between the second wheel 412 and the third wheel 413. Correspondingly, the second wheel 412 forms a first lifting torque on the third wheel 413 through the bottom paper 52.

[0045] Since the first torque limiting member 416 is provided on the first torque transmission component and the second torque limiting member 417 is provided on the second torque transmission component, and the torque value of the first torque limiting member 416 allowing the first wheel 411 and the second wheel 412 to slide relative to each other is smaller than the torque value of the second torque limiting member 417 allowing the first wheel 411 and the third wheel 412 to slide relative to each other, the third wheel 413 overcomes the pulling of the third wheel 413 by the second wheel 412 through the bar code tape 5, so that the first torque limiting member 416 allows the first wheel 411 and the second wheel 412 to slide relative to each other, that is, there is a difference in the rotational angular velocity between the shaft section connected to the first torque limiting member 416 close to the first wheel 411 and the shaft section of the second wheel 412, and at this time, the linear velocity of the second wheel 412 for winding the base paper 52 can be reduced to the linear velocity of the third wheel 413 for releasing the bar code tape 5.

[0046] When the linear speed of the third wheel 413 releasing the barcode tape 5 tends to be slower than the linear speed of the first wheel 411 (the linear speed of the frame 2 walking on the walking track 1), since the information code 51 is initially partially attached to the walking track 1, the walking track 1 forms a second pulling torque on the third wheel 413 through the information code 51. Under the action of the first pulling torque of the second wheel 412 on the third wheel 413 through the base paper 52 and the second pulling torque of the walking track 1 on the third wheel 413 through the information code 52, the second torque limiting member 417 allows the first wheel 411 and the third wheel 412 to slide relative to each other, that is, there is a difference in the rotational angular velocity between the shaft section close to the first wheel 411 connected by the second torque limiting member 417 and the shaft section of the third wheel 413. At this time, the angular velocity of the third wheel 413 will gradually increase, and the linear speed of the third wheel 413 releasing the barcode tape 5 will be increased to the linear speed of the frame 2 walking on the walking track 1.

[0047] In this way, the linear speed of the second wheel 412 for winding the base paper 52 and the linear speed of the third wheel 413 for releasing the barcode tape 5 are both equal to the linear speed of the frame 2 running on the running track 1. At this time, the length of the information code 52 separated from the barcode tape 5 is always equal to the length of the frame 2 running on the running track 1, so the information code 52 will not be stacked when it is pasted on the bottom surface 101 of the running track 1.

[0048] The present embodiment does not limit the types of the first torque limiter 416 and the second torque limiter 417. For example, the first torque limiter 416 and the second torque limiter 417 may be friction torque limiters, or torque limiters may be formed by setting mutually attractive magnetic poles on the end faces of two opposite shaft segments. The mutually attractive magnetic poles may be a plurality of magnetic poles arranged circumferentially along the rotation direction of the shaft segments. When it is necessary to adjust the torque value that allows the two shaft segments to rotate relative to each other, the adjustment can be made by setting the spacing or number of the mutually attractive magnetic poles connected between the two shafts.

[0049] In one or more embodiments, the first torque transmission component also includes a fourth wheel 414 and a fifth wheel 415, the fourth wheel 414 is coaxially connected to the first wheel 411, the fourth wheel 414 is transmission-connected to the fifth wheel 415, the fifth wheel 415 is connected to the second wheel 412 via a first torque limiting member 416, and the first wheel 411 or the fourth wheel 414 is connected to the third wheel 413 via a second torque limiting member 417.

[0050] Specifically, the carrier 3 has a first end and a second end relative to each other in the width direction of the walking track 1, the first wheel 411, the fourth wheel 414 and the fifth wheel 415 are rotatably connected to the second end, the second wheel 412 and the third wheel 413 are rotatably connected to the first end, the fourth wheel 414 is coaxially connected to the first wheel 411, the fourth wheel 414 is located between the carrier 3 and the first wheel 411, the fifth wheel 415 is arranged at intervals on the rear side of the first wheel 411, the fourth wheel 414 is connected to the fifth wheel 415 through a belt, the fifth wheel 415 is connected through a second torque limiting member 416, the fourth wheel 414 and the third wheel 413 are connected through a second torque limiting member 417, a barcode tape 5 is wound on the third wheel 413, one end of the barcode tape 5 extends from the bottom of the third wheel 413 to the rear and upper part of the third wheel 413, the barcode tape 5 at this end is separated from an information code 51 and a backing paper 52, the information code 51 is pasted to the code pasting area of ​​the walking track 1, and the backing paper 52 is connected to the second wheel 412.

[0051] During the process of pasting the information code 51, as the diameter of the base paper 52 rolled up by the second wheel 412 becomes larger and larger, the diameter of the third wheel 413 becomes smaller and smaller when releasing the barcode tape 5, and the third wheel 413 overcomes the pulling of the third wheel 413 by the second wheel 412 through the barcode tape 5 and forms resistance to the second wheel 412, so that the first torque limiting member 416 allows the second wheel 412 and the fifth wheel 415 to slide relative to each other. Correspondingly, the second wheel 412 and the first wheel 411 slide relative to each other. At this time, the linear speed of the second wheel 412 for rolling up the base paper 52 can be reduced to the linear speed of the third wheel 413 for releasing the barcode tape 5. When the linear speed of the third wheel 413 releasing the barcode tape 5 tends to be slower than the linear speed of the first wheel 411, the walking track 1 pulls the third wheel 413 through the information code 51. At this time, under the action of the first pulling torque of the second wheel 412 on the third wheel 413 through the backing paper 52 and the second pulling torque of the walking track 1 on the third wheel 413 through the information code 52, the second torque limiting member 417 allows the first wheel 411 and the third wheel 412 to slide relative to each other, and the linear speed of the third wheel 413 releasing the barcode tape 5 will be increased to the linear speed of the frame 2 walking on the walking track 1. In this way, the information code 52 will not be stacked when it is pasted on the bottom surface 101 of the walking track 1.

[0052] Fig.10A second embodiment of the first torque transmission component and the second torque transmission component is shown, in which the first torque transmission component includes a fourth wheel 414, a sixth wheel 418 and a first torque limiting member 416, the fourth wheel 414 is coaxially connected to the first wheel 411, the fourth wheel 414 is connected to the sixth wheel 418 by belt transmission, the sixth wheel 418 is connected to the second wheel 412 by the first torque limiting member 416, the second torque transmission component includes the fourth wheel 414, the sixth wheel 418, the seventh wheel 419 and the second torque limiting member 417, the sixth wheel 418 is connected to the seventh wheel 419 by belt transmission, and the seventh wheel 419 is connected to the third wheel 413 by the second torque limiting member.

[0053] In one or more embodiments, the carrier 3 includes a fixed portion 31 having an inclined guide surface 311 disposed on the frame 2 and a movable portion 32 that moves upward along the guide surface 311 to approach the code pasting area or moves downward to move away from the code pasting area; the code pasting mechanism 4 is disposed on the side of the movable portion 32 and moves synchronously with the movable portion 32.

[0054] See also Figure 4 The inclined direction of the inclined guide surface 311 can be gradually inclined downward along the forward direction of the rail vehicle, or the inclined direction of the inclined guide surface 311 can be gradually inclined upward along the forward direction of the rail vehicle. The bottom of the movable portion 32 has an inclined surface, which is adapted to the guide surface 311 of the fixed portion 31.

[0055] See also Figure 4 , Figure 5 A slide rail is arranged on the guide surface 311 of the fixed part 31, and a slide groove is formed at the bottom of the movable part 32. During assembly, the slide groove at the bottom of the movable part 32 enters the slide rail on the guide surface 311 of the fixed part 31. Through this arrangement, the movement of the movable part 32 relative to the fixed part 31 in the width direction of the walking track 1 can be limited.

[0056] See also Figures 1 to 6The first end and the second end of the carrier 3 are the first end and the second end of the moving part 32, and the first wheel 411 and the second wheel 412 included in the code sticking mechanism 4 are rotatably connected to the second end and the first end of the moving part 32 respectively. The first wheel 411 at least partially extends out of the top of the moving part 32, and the first wheel 411 can rise along the guide surface 311 with the moving part 32 and abut against the bottom surface 101 of the walking track 1, and then combine with the code sticking mechanism 4 to realize the information code 51 being attached to the code sticking area of ​​the bottom surface 101 of the walking track 1; the present application configures the bottom of the moving part 32 and the top of the fixed part 31 into a wedge-shaped structure that matches each other, and at the same time controls the inclination angle of the guide surface 311 of the fixed part 31, so as to extend the travel of the moving part 32 to drive the first wheel 411 to rise and abut against the bottom surface 101 of the walking track 1, thereby realizing the first wheel 4 11 and the information code 51 can contact the bottom surface 101 of the walking track 1 more gently. By configuring the bottom of the movable part 32 and the top of the fixed part 31 into mutually compatible wedge structures, it can be achieved that when the code sticking mechanism 4 is not working, the movable part 32 and the code sticking mechanism 4 can use their own gravity to achieve automatic sliding down on the guide surface 311 of the fixed part 31. In addition, through this arrangement, the position between the barcode tape 5 and the walking track 1 can be accurately adjusted, so that the information code 51 peeled off from the barcode tape 5 can be more accurately attached to the code sticking area of ​​the bottom surface 101 of the walking track 1, thereby improving the accuracy of the code sticking position of the present application, and then ensuring the accuracy of the overhead crane reading the information code 51 on the walking track 1, ensuring the accuracy of the overhead crane position, and improving the accuracy of the overhead crane traveling on the walking track 1 in positioning the wafer box.

[0057] In one possible embodiment, the power source for driving the movable part 32 to rise or fall on the surface of the fixed part 31 may be a driving cylinder, or other possible driving sources, or a pull rope arranged on the movable part 32, which is pulled by human power or wound by a servo motor. When pulled by human power, the movable part 32 is pulled up along the guide surface 311 of the fixed part 31 by the pull rope, so that the first wheel 411 arranged on the movable part 32 can abut against the bottom surface 101 of the walking track 1. When the code is pasted, the human power on the pull rope is released, and under the action of gravity, the movable part 32 descends along the guide surface 311 of the fixed part 31, so that the lifting and lowering of the first wheel 411 can be achieved without the need for a power source such as a motor.

[0058] In one or more embodiments, the code sticking mechanism 4 also includes: a peeling member 42, which is obliquely arranged on the side surface of the carrier 3 and is located at the rear position of the first wheel 411 relative to the forward direction of the carrier 3, and the base paper 52 is wrapped around the peeling member 42 and rolled up on the first wheel 411; a roller wheel 43, which is arranged on the side surface of the carrier 3 and is located at the rear side of the forward direction of the peeling member 42 relatively, and the roller wheel 43 is driven up by the carrier 3 and abuts against the bottom surface 101 of the walking track 1 to roll and stick the information code 51 in the code sticking area.

[0059] See also Figures 1 to 9 In the forward direction of the frame 2, the stripping member 42 and the roller 43 are both arranged at the first end of the moving part 32, the stripping member 42 is relatively located in front of the roller 43, and the stripping member 42 is tilted toward the roller 43. The barcode tape 5 passes through the stripping member 42 at one end close to the roller 43. When the information code 51 on the barcode tape 5 passes through the stripping member 42, the information code 51 is abutted by the stripping member 42 and has a large turning angle. At this time, the end of the information code 51 will be tilted and separated relative to the barcode tape 5. As the backing paper 52 is wound by the second wheel 412, the information code 51 gradually separates from the barcode tape 5 and adheres to the code pasting area of ​​the bottom surface 101 of the walking track 1, and is pressed by the roller 43. Through this arrangement, the information code 51 configured on the barcode tape 5 can be automatically stripped, pasted and rolled, and has the characteristics of compact structure and high code pasting efficiency.

[0060] In a possible implementation, the roller 43 is installed at the first end of the moving part 32 through an elastic member, and the roller 43 extends out of the top of the moving part 32 to be in a static position by means of the elastic force of the elastic member. It should be noted that the elastic member can be a spring or elastic steel.

[0061] In one or more embodiments, the code attaching mechanism 4 further includes a cutting knife 44 which is disposed between the roller pressing wheel 43 and the peeling member 42 and can move in the height direction to cut off the information code 51 .

[0062] See also Figures 4 to 9 The first end of the moving part 32 is provided with a guide rail in the vertical direction, and the bottom end of the cutting knife 44 slides on the guide rail through the knife handle. When the information code 51 is in a long strip shape, the cutting knife 44 is required to cut the information code 51. At this time, the cutting knife 44 only needs to be controlled to rise and contact the information code 51 stripped from the barcode tape 5, so as to cut the long strip information code 51. The structure is simple and the operation is convenient.

[0063] In a possible implementation, the blade of the cutting knife 44 is arranged in an inclined shape, or the blade of the cutting knife 44 is arranged in a sawtooth shape. Through such an arrangement, the cutting effect of the cutting knife 44 on the information code 51 can be guaranteed.

[0064] In one possible embodiment, the driving source for controlling the rise or fall of the cutting knife 44 may be a driving cylinder or other driving structure; alternatively, a rocker arm may be rotatably installed on the movable portion 32, one end of the rocker arm being rotatably installed at the bottom of the cutting knife 44, and the other end of the rocker arm being connected to a pull rope or other possible power source, and the pull rope is pulled to rotate the rocker arm, thereby achieving the rise or fall of the cutting knife 44 relative to the movable portion 32.

[0065] In one or more embodiments, a first limit member 33 and a second limit member 34 are disposed on the side of the fixed portion 31, and a third limit member 35 located between the first limit member 33 and the second limit member 34 is disposed on the side of the movable portion 32. The movable portion 32 has a first position and a second position. In the first position, the third limit member 35 abuts against the first limit member 33, the first wheel 411 abuts against the walking track 1, and a gap is allowed between the stripping member 42 and the walking track 1. In the second position, the third limit member 35 abuts against the second limit member 34, and the first wheel 411 is away from the walking track 1 at a predetermined distance.

[0066] See also Figures 2 to 9 The first limiting member 33 , the second limiting member 34 and the third limiting member 35 are arranged on the same side of the fixed portion 31 and the movable portion 32 , and the third limiting member 35 is always located within the range limited by the first limiting member 33 and the second limiting member 34 .

[0067] See also Figure 3 When the movable part 32 moves to the highest position along the guide surface 311 of the fixed part 31 and makes the first wheel 411 abut against the bottom surface 101 of the running track 1, the third limiter 35 abuts against the first limiter 33, and the first limiter 33 can form a position restriction on the third limiter 35, thereby preventing the movable part 32 from continuing to rise on the fixed part 31, and preventing the stripping part 42 from excessively pressing the bar code tape 5 against the bottom surface 101 of the running track 1, thereby preventing the second wheel 412 from rolling up the bottom paper 52, and causing the bottom paper 52 between the stripping part 42 and the second wheel 412 to be easily broken.

[0068] See also Figure 4 When the movable part 32 moves down to the lowest position along the guide surface 311 of the fixed part 31, the third limiting member 35 abuts against the second limiting member 34, and the second limiting member 34 can limit the position of the third limiting member 35, thereby preventing the movable part 32 from sliding out of the fixed part 31.

[0069] It should be noted that the first limit member 33 and the second limit member 34 can be installed on the fixed part 31 by bolts, that is, the positions of the first limit member 33 and the second limit member 34 on the fixed part 31 are adjustable. When the positions of the first limit member 33 and the second limit member 34 change, the highest position and the lowest position of the movable part 32 rising or falling along the guide surface 311 on the fixed part 31 will change accordingly, thereby realizing the adjustment of the moving height of the movable part 32 in the height direction of the present application to meet the usage requirements in different situations.

[0070] In one or more embodiments, the stripping member 42 has a guide portion 421 and a mounting portion 422 , and the guide portion 421 at least partially extends out of the top end of the moving portion 32 .

[0071] See also Figure 7 The mounting portion 422 of the stripping member 42 is used to be connected to the moving portion 32, and the guiding portion 421 of the stripping member 42 at least partially extends out of the top of the moving portion 32. When the first wheel 411 abuts against the bottom surface 101 of the running track 1, the bottom paper 52 passing through the guiding portion 421 of the stripping member 42 can be close to the bottom surface 101 of the running track 1, and the information code 51 stripped from the barcode tape 5 can immediately protrude from the stripping member 42 and be attached to the bottom surface 101 of the running track 1, reducing the distance between the stripping position and the pasting position of the information code 51, so that the information code 51 is not easily disturbed by the airflow and the problem of inaccurate pasting position occurs, thereby improving the pasting quality of the barcode tape 5.

[0072] In other possible embodiments, the guide portion 421 of the stripping member 42 may not extend out of the top of the moving portion 32 ; the setting position of the guide portion 421 only needs to ensure that the information code 51 stripped from the barcode tape 5 can be automatically attached to the bottom surface 101 of the walking track 1 .

[0073] In one or more embodiments, the stripping member 42 is an elastic thin plate. When the guide portion 421 extends out of the top of the moving portion 32 and abuts against the bottom surface 101 of the travel track 1 , the elastic guide portion 421 can be elastically deformed toward the moving portion 32 .

[0074] See also Figure 7 When the base paper 52 wound around the stripping piece 42 and the first wheel 411 is in a taut state, the stripping piece 42 made of elastic material can be elastically deformed toward the moving part 32 at one end of the base paper 52 wound around, thereby reducing the possibility of the base paper 52 abutting against the bottom surface 101 of the walking track 1 being broken or torn, thereby improving the efficiency of the application for attaching the information code 51.

[0075] It should be noted that the reasons why the base paper 52 is broken or torn are as follows:

[0076] First, taking the distance moved by the movable part 32 relative to the fixed part 31 as a reference, there will be precision errors and control errors when the movable part 32 rises along the fixed part 31, and the stripping member 42 will abut against the bottom surface 101 of the running track 1 through the bottom paper 52. When the stripping member 42 has a large rigidity, the pressure between the stripping member 42 and the running track 1 is large, and the bottom paper 52 is not easy to be pulled out from between the stripping member 42 and the running track 1, so that the bottom paper 52 is broken or broken. On the contrary, the stripping member 42 can undergo elastic deformation. When the stripping member 42 abuts against the bottom surface 101 of the running track 1 through the bottom paper 52, the bar code tape 5 is subjected to less force and is easily pulled out.

[0077] The second point is that, based on the control force for controlling the movement of the movable part 32 relative to the fixed part 31, due to the accuracy error and control error of the running track 1, the stripping member 42 may abut against the bottom surface 101 of the running track 1 through the bottom paper 52. When the stripping member 42 has a large rigidity, the control force is mainly borne by the stripping member 42, and the pressure between the stripping member 42 and the running track 1 is large. The bottom paper 52 is not easy to be pulled out from between the stripping member 42 and the running track 1, so that the bottom paper 52 is broken or broken. On the contrary, the stripping member 42 can undergo elastic deformation, and the control force is mainly borne by the elastic member under the roller 43. The bottom paper 52 is subjected to less force and is easy to be pulled out, and is not easy to tear.

[0078] In one or more embodiments, the peeling member 42 is made of peek or stainless steel.

[0079] It should be noted that in order to avoid the peeling piece 42 made of plastic material from producing particles due to friction with the barcode tape 5 and thus reducing the cleanliness of the factory, the present application adopts wear-resistant peek and stainless steel materials to make the peeling piece 42, thereby avoiding the occurrence of the above-mentioned problem and extending the service life of the peeling piece 42.

[0080] In one or more embodiments, the stripping member 42 is deflected counterclockwise relative to the vertical direction at one end around which the bar code tape 5 is wound to form an angle of 60-80°.

[0081] See also Figure 4 , Figure 7 The stripping member 42 is configured to be inclined at 60-80 degrees, which can ensure the smoothness of the elastic deformation of the stripping member 42 made of elastic material toward the moving part 32. At the same time, through this arrangement, after the information code 51 is stripped from the barcode tape 5, the information code 51 can be attached to the code sticking area of ​​the bottom surface 101 of the walking track 1 at an elevation angle of 60-80 degrees, thereby improving the stability of the information code 51 sticking process.

[0082] In one or more embodiments, the frame 2 is provided with a code scanner 8 for detecting the attachment status of the information code 51. Figure 1 , Figure 2 In the forward direction of the frame 2, the barcode scanner 8 is relatively located at the rear position of the carrier 3. When the code sticking mechanism 4 sticks the information code 51 to the code sticking area of ​​the bottom surface 101 of the walking track 1, the barcode scanner 8 is used to scan and locate the position of the information code 51, exclude the unqualified information codes 51, and record the information of each information code 51 in the scanning area.

[0083] In one or more embodiments, it also includes a detection component 6 arranged on the frame 2, the detection component 6 includes a first distance measuring sensor 61, a second distance measuring sensor 62, a third distance measuring sensor 63 and a fourth distance measuring sensor 64, the walking track 1 includes a first track 11 and a second track 12 arranged in parallel, the first distance measuring sensor 61 and the second distance measuring sensor 62 are used to detect the distance to the two adjacent surfaces of the first track 11, and the third distance measuring sensor 63 and the fourth distance measuring sensor 64 are used to detect the distance to the two adjacent surfaces of the second track 12.

[0084] The running track 1 includes a first track 11 and a second track 12 parallel to each other. The bottom surface 101 of the first track 11 or the second track 12 of the running track 1 has a code sticking area. The frame 2 is suspended on the first track 11 and the second track 12. The frame 2 can move along the first track 11 and the second track 12. The bearing member 3 and the code sticking mechanism 4 configured on the frame 2 can move on the running track 1 with the frame 2, so that the code sticking mechanism 4 can stick the information code 51 to a predetermined position of the code sticking area of ​​the running track 1.

[0085] See also Fig.11 , Fig.12 , the detection component 6 is used to detect the positions of the first track 11 and the second track 12. The detection component 6 can be a first distance measuring sensor 61 and a second distance measuring sensor 62 for detecting the position of the first track 11, and a third distance measuring sensor 63 and a fourth distance measuring sensor 64 for detecting the position of the second track 12. The first distance measuring sensor 61, the second distance measuring sensor 62, the third distance measuring sensor 63, and the fourth distance measuring sensor 64 are arranged on the frame 2 through a support frame, wherein the first distance measuring sensor 61 is perpendicular to a side surface of the first track 11 relatively close to the second track 12, the second distance measuring sensor 62 is perpendicular to a bottom surface 101 of the first track 11, the third distance measuring sensor 63 is perpendicular to a side surface of the second track 12 relatively close to the first track 11, and the fourth distance measuring sensor 64 is perpendicular to the bottom surface 101 of the second track 12.

[0086] Since the first distance measuring sensor 61 and the second distance measuring sensor 62 detect the position of the first track 11 in the same manner as the third distance measuring sensor 63 and the fourth distance measuring sensor 64 detect the position of the second track 12, the following description is only based on the manner of detecting the first track 11:

[0087] See also Fig.12 When the first track 11 and the second track 12 are in theoretical positions, the first distance measuring sensor 61 and the second distance measuring sensor 62 respectively measure the theoretical distances between them and the first track 11 as D1 and D2. When the first track 11 is offset or tilted, the first distance measuring sensor 61 and the second distance measuring sensor 62 respectively measure the actual distances between them and the first track 11 as L1 and L2.

[0088] See also Figures 11 to 15 When D1=L1 and D2=L2, the theoretical position and actual position of the first track 11 are the same, and the first track 11 has not shifted; when D1=L1 and D2>L2, it means that the first track 11 is shifted toward the second track 12; when D1=L1 and D2<L2, it means that the first track 11 is shifted away from the second track 12; when D1<L1 and D2>L2, it means that the first track 11 is deflected counterclockwise; when D1>L1 and D2<L2, it means that the first track 11 is deflected clockwise.

[0089] When the actual position of the first track 11 and the second track 12 deviates from the theoretical position, it is necessary to stop the code sticking mechanism 4 and adjust the position of the first track 11 and the second track 12 to the theoretical position to ensure the accuracy of the information code 51 attachment position and the position accuracy of the overhead crane when transporting the wafer box, thereby improving the use effect of the present application.

[0090] In one or more embodiments, the bottom surface 101 of the frame 2 is provided with a level detector, and the number of the level detectors may be one, four, or other possible numbers. The level detector is used to determine whether the frame 2 is in a horizontal state, so as to further ensure the accuracy of the position of attaching the information code 51 by the code attaching mechanism 4.

[0091] The above implementation modes are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A rail vehicle, used for a running track, wherein the bottom surface of the running track has a coding area, characterized in that: include: A vehicle frame, suspended from the travel track and movable along the travel track; A bearing member, disposed on the frame, the bearing member being configured to rise to approach or fall away from the bottom surface; The code sticking mechanism is used to stick the separated information code on the bar code tape to the code sticking area. The code sticking mechanism is connected to the carrier. The code sticking mechanism includes a first wheel. The first wheel can be driven up by the carrier to rotate along the bottom surface and provide conveying power for the bar code tape, so that the bar code tape being transmitted automatically transmits the separated information code.

2. The rail vehicle according to claim 1, characterized in that: The code sticking mechanism also includes a second wheel, which is driven by the first wheel to roll up the base paper separated from the bar code tape.

3. The rail vehicle according to claim 2, characterized in that: The first wheel is connected to the second wheel via a first torque transmission component including a first torque limiting member, the code sticking mechanism further includes a third wheel wound with the bar code tape, the first wheel is connected to the third wheel via a second torque transmission component including a second torque limiting member, and the torque value of relative slip between the first wheel and the second wheel allowed by the first torque limiting member is smaller than the torque value of relative slip between the first wheel and the third wheel allowed by the second torque limiting member.

4. The rail vehicle according to claim 2 or 3, characterized in that: The bearing member includes a fixed portion with an inclined guide surface disposed on the frame and a movable portion that moves up along the guide surface to approach the code pasting area or moves down to move away from the code pasting area; The code sticking mechanism is arranged at the side of the moving part and moves synchronously with the moving part.

5. The rail vehicle according to claim 4, characterized in that: The coding mechanism also includes: A stripping member, obliquely arranged on the side surface of the carrier and located relatively to the rear of the second wheel in the forward direction of the carrier, the base paper passing through the stripping member and being rolled up on the second wheel; The roller pressing wheel is arranged on the side surface of the carrier and is relatively located at the rear side of the stripping member in the advancing direction. The roller pressing wheel is driven upward by the carrier and abuts against the bottom surface of the walking track to roll and press the information code on the code sticking area.

6. The rail vehicle according to claim 5, characterized in that: The fixed part is provided with a first limit member and a second limit member on the side, the movable part is provided with a third limit member located between the first limit member and the second limit member on the side, the movable part has a first position and a second position, in the first position, the third limit member abuts against the first limit member, the first wheel abuts against the travel track, and a gap is allowed between the stripping member and the travel track, in the second position, the third limit member abuts against the second limit member, and the first wheel is away from the travel track at a predetermined distance.

7. The rail vehicle according to claim 5, characterized in that: The code sticking mechanism also includes a cutting knife which is arranged between the rolling wheel and the stripping member and can move in the height direction to cut off the information code.

8. The rail vehicle according to claim 5, characterized in that: The stripping member comprises a guide portion and a mounting portion, wherein the guide portion at least partially extends out of the top end of the moving portion.

9. The rail vehicle according to claim 8, characterized in that: The stripping member is an elastic thin plate, and the stripping member is deflected counterclockwise relative to the vertical direction at one end around which the base paper is wound to form an angle of 60-80°.

10. The rail vehicle according to claim 1, characterized in that: The vehicle also includes a detection component arranged on the vehicle frame, the detection component includes a first distance measuring sensor, a second distance measuring sensor, a third distance measuring sensor and a fourth distance measuring sensor, the walking track includes a first track and a second track arranged in parallel, the first distance measuring sensor and the second distance measuring sensor are used to detect the distance to two adjacent surfaces of the first track, and the third distance measuring sensor and the fourth distance measuring sensor are used to detect the distance to two adjacent surfaces of the second track.

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