CN116729925A

CN116729925A - Conveying line and automatic production line

Info

Publication number: CN116729925A
Application number: CN202311002613.4A
Authority: CN
Inventors: 黎铁牛
Original assignee: Guangdong Yunchi Era Technology Co ltd
Current assignee: Guangdong Yunchi Era Technology Co ltd
Priority date: 2023-08-10
Filing date: 2023-08-10
Publication date: 2023-09-12

Abstract

The application is suitable for the field of automatic equipment and provides a conveying line and an automatic production line. Wherein, the transfer chain includes: a slide rail; the sliding block is in sliding connection with the sliding rail; the driver is used for driving the sliding block to slide; the encoder is arranged on the sliding block; the bar code board comprises a plurality of bar codes which are sequentially arranged, and each bar code is provided with a specific position number; the code scanner is arranged on the sliding block; when the code scanner moves along with the sliding block, the code scanner can recognize each bar code one by one, and each time the encoder outputs a Z signal, the code scanner scans one bar code, in the moving process of the sliding block, the code scanner scans bar code information of the current position, the last bar code information before power failure is recorded as N, the last bar code information after power failure is recorded as M, and after power failure of the conveying line is performed again, the driver drives the sliding block to move backwards from the M position to the position corresponding to the Z signal of N. The conveyor line provided by the application realizes accurate and rapid zero return positioning of the sliding block through the matching arrangement of the Z signal of the encoder and the bar code.

Description

Conveying line and automatic production line

Technical Field

The application belongs to the field of automatic equipment, and particularly relates to a conveying line and an automatic production line.

Background

The incremental encoder has simple principle and structure, long mechanical average life of over tens of thousands of hours, strong anti-interference capability and high reliability, and is suitable for long-distance transmission and widely applied to automatic conveying and processing equipment. But has the disadvantage of not having absolute positional information of the rotation of the output shaft. This makes the device difficult to change after power failure. In the existing production line adopting the incremental encoder, the sliding block (which is in sliding connection with the sliding rail and is fixedly connected with the carrying platform for carrying the product) needs long-distance and slow-speed reciprocating motion to return to zero to determine the initial position, so that the zero return process is very time-consuming, and if the zero return photoelectric sensor is damaged, the line body cannot return to zero. In some production scenes, the sliding block is not allowed to be out of position, because the sliding block needs to work continuously before and after power failure, when the starting position is found again, the sliding block needs to retract for a certain distance, and products in the retracted distance are wasted, so that the resource waste is brought.

Disclosure of Invention

The application aims to overcome the defects of the prior art and provides a conveying line and an automatic production line, which aim to realize quick zero-return positioning.

The present application provides a conveyor line comprising:

a slide rail;

the sliding block is in sliding connection with the sliding rail;

the driver is used for driving the sliding block to slide;

the encoder is arranged on the sliding block;

the bar code board comprises a plurality of bar codes which are sequentially arranged, and each bar code is provided with a specific position number;

the code scanner is arranged on the sliding block;

when the code scanner moves along with the sliding block, the code scanner can recognize the bar codes one by one, and each time the encoder outputs a Z signal, the code scanner scans one bar code;

in the moving process of the sliding block, the code scanner scans bar code information of the current position, records the last bar code information before power failure as N, records the bar code information after re-power connection as M, and drives the sliding block to move backwards from the M position to the position corresponding to the Z signal of N after the power-off of the conveying line is re-powered on.

Optionally, the driver is a linear motor, the linear motor includes a stator and a rotor, the rotor is disposed on the slider, the stator includes a plurality of magnetic pieces and is arranged along the extending direction of the sliding rail in sequence, and when the slider passes by one of the magnetic pieces, the encoder outputs a Z signal.

Optionally, the sliding rail is an annular rail and is provided with a straight line section and an arc line section, and the number of the magnetic pieces corresponding to the arc line sections is even.

Optionally, the bar code and the end face of the magnetic piece along the extending direction of the sliding rail are coplanar.

Optionally, the code scanner is located on a central line of the sliding block along the extending direction of the sliding rail.

Optionally, the code scanner is located on a central line of the stator along the extending direction of the sliding rail.

Optionally, the length of the magnetic piece along the extending direction of the sliding rail is 8-20mm.

Optionally, the slide rail is annular track and flat the arranging on the board, the bar code board is located the board and is located the outside of slide rail, the bar code spare is vertical and places.

Optionally, the conveying line comprises a power supply busbar and a power taking structure, the driver is electrically connected with the power taking structure, and the power taking structure and the power supply busbar are connected with each other through sliding;

the sliding rail is annular, and the power supply busbar is positioned at the outer side of the sliding rail.

The application also provides automatic production equipment comprising the conveying line.

According to the conveyor line and the automatic production equipment adopting the conveyor line, the position information of the sliding block on the sliding rail is acquired through the matching arrangement of the code scanner and the bar code, and the accurate and rapid zero resetting and positioning of the sliding block are realized through the matching arrangement of the Z signal of the encoder and the bar code. Under the condition that the bar code at a certain position is damaged, the sliding block only needs to sweep the bar code at the next bar code position and then move back to zero, the initialization of the transfer line back to zero is not affected, and the damaged bar code is repaired. The distance that the zeroing needs to be moved is approximately equivalent to the distance that the power-off moves back and forth, compared with the existing design, the distance that the zeroing positioning operation needs to be moved is greatly reduced, the time required by the zeroing positioning is reduced, and the problem of product waste caused by the fact that the zeroing positioning moves through a processing station can be effectively reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a conveyor line according to an embodiment of the present application.

FIG. 2 is a schematic diagram of the structure of the code scanner, encoder and power take-off structure integrated on the slider in an embodiment of the present application.

Fig. 3 is a top view of the structure of fig. 2.

Reference numerals illustrate: 10. a slide rail; 20. a slide block; 30. an encoder; 40. a bar code plate; 50. a code scanner; 61. a magnetic member; 71. a power supply busbar; 72. an electricity taking structure; 80. a machine.

Detailed Description

The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

Furthermore, in the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

It should be further noted that terms such as left, right, upper, and lower in the embodiments of the present application are merely relative concepts or references to normal use states of the product, and should not be construed as limiting.

Referring to fig. 1 to 3, an exemplary description will now be made of a conveyor line and an automated production line using the same according to the present application.

Referring to fig. 1, the conveyor line includes a slide rail 10, a slider 20, a driver and an encoder 30. It will be appreciated that the conveyor line also includes a table 80, the table 80 providing support for the slide rail 10, the slide 20, the driver and the encoder 30.

The slide rail 10 is provided on the machine table 80, and in general, the slide rail 10 extends in a horizontal plane, may extend linearly, may extend in a curve, may be annular, or may be spiral. And are not limited herein.

The slider 20 is slidingly engaged with the slide rail 10, and the slide rail 10 defines a moving path of the slider 20. The drive provides motive force for the movement of the slider 20. A carrier is fixed on the slider 20, and is used for carrying the product. The product can be a part, a finished product and the like. The slider 20 and the carrier may be fixedly connected by fasteners or other means, or may be integrally provided. For ease of description, the slider 20 and the stage are considered to be a unitary structure.

The encoder 30 is disposed on the slider 20, and the encoder 30 is connected to the driver to acquire data such as a distance and a speed of the movement of the slider 20. In this embodiment, the encoder 30 is an incremental encoder that uses photoelectric conversion to output three sets of square wave pulses A, B and the Z phase; A. the phase difference of the two groups of pulses is 90 degrees, so that the rotation/movement direction can be conveniently judged, and each time the code wheel rotates for one circle, the grating ruler moves for one grating circumference length, a Z-phase pulse is generated for positioning the datum point. The Z-phase pulse is fixed at a certain position of the circumference/grating scale, and the encoder 30 outputs only one Z-phase pulse per revolution, so that if the Z-phase pulse is taken as a reference point, the system is cleared once every time the Z-phase pulse is read, and therefore, the position of the Z-phase pulse corresponds to a zero reference point.

After the power-off is re-electrified, the system needs to find the position before the power-off, however, since the system clears once every Z-phase pulse, the system is unclear in which period it is located, and therefore, the position before the power-off needs to be found by other means, namely, zero-returning is performed.

In the existing design, the return-to-zero is realized through the cooperation of the return-to-zero photoelectric sensor and the baffle. Specifically, a shutter is provided at a specific position of the platform 80 on the moving path of the slider 20, and a zeroing photoelectric sensor is provided on the slider 20, or conversely, the shutter is provided on the slider 20 and the zeroing photoelectric sensor is provided on the platform 80, and the zeroing photoelectric sensor is triggered to transmit a zero signal when passing through the shutter, and the position is a zero position. Because the system uses the zero point position as a reference, after the system is powered off and powered on again, the sliding block 20 needs to reversely move to the zero point position along the moving path to realize zero return. In this case, the slider 20 needs to be moved backward to the zero position corresponding to the shutter, no matter how far it is moved forward after the power is turned off. For example, the slider 20 moves to a position 20cm from the zero point before power failure, moves forward by 10mm due to inertia after power failure, and after power failure, the system does not know the position of the slider 20 and can only move the slider 20 backward to the zero point position, thus requiring 20.01cm backward movement. If the slider 20 moves to a position 50cm from the zero point before the power failure, it moves forward by 10mm due to inertia after the power failure, and after the power failure, the slider 20 needs to move backward by 50.01cm to the zero point. This zeroing process requires long, slow back and forth movements, which is time consuming, given the accuracy of the shutters and zeroing photosensors and the inertia of the slider 20 movement. And if the return-to-zero photosensor is damaged, the slider 20 has no way to return to zero. In addition, if the slide 20 is subjected to a specific manufacturing process during this movement, the product produced or processed during this movement is disposed of.

In this embodiment, the quick zeroing positioning is realized by the cooperation of the bar code with the position information and the Z-phase signal of the encoder 30.

Specifically, referring to fig. 1, the conveyor line includes a barcode plate 40 and a scanner 50. The barcode plate 40 includes a plurality of barcodes arranged in sequence, each barcode having a specific position number. The code scanner 50 is provided on the slider 20 and moves with the movement of the slider 20. Wherein, when the scanner 50 moves along with the slider 20, the scanner 50 can identify each bar code one by one, and each time the encoder 30 outputs a Z signal, the scanner 50 scans one bar code. In the moving process of the slide block 20, the code scanner 50 scans the bar code information of the current position, the last bar code information before power failure is recorded as N, the bar code information after re-power connection is recorded as M, and after the conveying line is re-powered on, the driver drives the slide block 20 to move backwards from the M position to the position corresponding to the Z signal of N.

The bar code can be a two-dimensional code, and the position number information of the bar code is attached in the bar code. The position number information of each bar code is unique and is not repeated. The bar codes are arranged in sequence, and the position numbers can be arranged according to the Arabic numerals or randomly. The position-coded information may be a digital identifier, or may be letters, characters, or other identifiers, which are not limited herein.

The scanner 50 scans the bar code information and transmits the information to the controller of the conveyor line, which can resolve to obtain the position of the slider 20 corresponding to the bar code position. Because of the uniqueness of the bar code, no matter where the slider 20 is powered down, there is a corresponding bar code identifying where it is located. After being electrified, the slider 20 acquires the current position by newly scanning a bar code, and the controller only needs to control the slider 20 to move to the position corresponding to the previous bar code.

For example, the plurality of bar codes are arranged in an incremental manner according to the natural number, before the power is off, the bar code scanner 50 knows that the last bar code is 6, after the power is on, the bar code scanner 50 knows that the bar code at the current position is 8, and then the slider 20 only needs to be moved back to the position corresponding to the bar code 6.

In general, the bar code has a certain width, for example, 12mm, and the distance between two adjacent bar codes is equal to the width of the bar code. Under the information of the code scanner and the bar code board 40, the controller controls the driver to drive the slider 20 to move to the position corresponding to the bar code before power-off, but the specific position within the width range of the bar code (such as 12 mm) is unclear, so that further accurate positioning is required.

In this embodiment, the characteristic of the encoder 30 about the Z signal is utilized, and the precision of zeroing positioning is improved through the cooperation of the Z signal and the bar code.

Specifically, each time the encoder 30 outputs a Z signal, the scanner 50 scans one barcode, i.e., the center distance between two adjacent barcodes corresponds to the period of the Z signal. For convenience of description, the following will be treated with the center-to-center distance of two barcodes equal to the width of the barcode.

In combination with the characteristic of the Z signal, the encoder 30 rotates one turn to generate a Z signal, and the slider 20 moves a distance corresponding to the length of one bar code, so that the encoder 30 rotates one turn. The Z signal is fixed at the location of the code wheel, in other words, the location of the Z signal corresponding to the bar code is fixed. Such as the Z signal at 1/4 of the position of the code wheel. The scanner 50 scans 1/4 of any bar code corresponding to the relationship with the bar code to generate a Z signal. In combination with the zeroing positioning operation, assuming that a plurality of bar codes are arranged in an incremental manner according to a natural number, before power-off, the code scanner 50 knows that the last bar code is 6, after power-on, the code scanner 50 knows that the bar code at the current position is 8, and accurate zeroing of the sliding block 20 can be realized only by moving the sliding block 20 back to the Z signal position of the bar code 6. The Z signal corresponds to the stationarity of the position of each bar code, and the slider 20 directly moves to the Z signal position of the bar code 6 to complete zero-resetting positioning, without performing other adjustment and searching positions within the width range of the bar code 6, thereby effectively reducing the time required for zero-resetting positioning adjustment.

Assuming that the width of the bar code is 12mm, the Z signal is located at 1/4 of the bar code, before the power is off, the last bar code obtained by the bar code scanner 50 is 6, after the power is off, the bar code scanner 50 scans the bar code to obtain the current position of the bar code 7, the bar code is actually moved to 3/4 of the bar code 7, and after the controller obtains the position information of the two bar codes (the bar code 6 and the bar code 7) before and after the power is on, the driver drives the sliding block 20 to move to the position of the Z signal of the bar code 6, and only 18mm is needed to be moved.

Analysis shows that the distance required to return to zero is slightly greater than the distance of the offset after power failure, and the difference is within the width of one bar code. The width dimension of the bar code is also small, so the distance that the zeroing needs to be moved is roughly equivalent to the distance that the slide moves in the power-down to power-up time. In general, the distance that the slider moves forward after power failure is limited based on inertia, and therefore, the distance that the slider needs to move to return to zero is much smaller than in existing designs.

In summary, the conveying line and the automatic production line adopting the conveying line provided by the application acquire the position information of the sliding block 20 on the sliding rail 10 through the matching arrangement of the code scanner 50 and the bar code, and realize the accurate and rapid zero resetting positioning of the sliding block 20 through the matching arrangement of the Z signal of the encoder 30 and the bar code. Under the condition that the bar code at a certain position is damaged, the sliding block 20 only needs to sweep the bar code at the next bar code position and then move back to zero, the initialization of the transfer line back to zero is not affected, and the damaged bar code is repaired. The distance that the zeroing needs to be moved is approximately equivalent to the distance that the power-off moves back and forth, compared with the existing design, the distance that the zeroing positioning operation needs to be moved is greatly reduced, the time required by the zeroing positioning is reduced, and the problem of product waste caused by the fact that the zeroing positioning moves through a processing station can be effectively reduced.

In another embodiment of the present application, the driver is a linear motor, and the linear motor includes a stator and a mover, wherein the mover is disposed on the slider 20, and the stator is fixed on the machine 80. In the structure shown in fig. 1, there are two slide rails 10, and the stator is disposed between the two slide rails 10. The mover is provided on the lower surface of the slider 20 and is opposite to the stator. When the mover is energized, a magnetic attraction force generated between the mover and the stator is a driving force for the movement of the slider 20.

The linear motor is adopted to directly convert electric energy into driving force without a transmission structure such as screw rod transmission and the like, mechanical contact is avoided, the transmission force is generated in an air gap, and no other friction is generated except the sliding rail 10, so that the stable and low-noise operation effect is ensured. The linear driving device is simple in structure and small in size, and realizes linear driving by the minimum number of parts. In addition, the running stroke of the linear motor is not limited in theory, and the performance of the linear motor is not affected by the change of the stroke.

In this embodiment, the driver adopts a linear motor, and the encoder 30 correspondingly adopts a grating scale, and outputs a Z signal in one grating period.

In this embodiment, the stator includes a plurality of magnetic members 61 sequentially arranged along the extending direction of the slide rail 10, and the encoder 30 outputs a Z signal when the slider 20 passes by one of the magnetic members 61. In other words, one grating period length is the center distance of the magnetic member 61 along the extending direction of the slide rail 10. With the spacing between adjacent two magnetic members 61 being zero, one grating period length is equal to the width of one magnetic member 61 along the extending direction of the slide rail 10.

In another embodiment of the present application, referring to fig. 1, the sliding rail 10 is an annular rail and has straight line segments and arc segments, and the number of the magnetic members 61 corresponding to the arc segments is even. The number of magnetic members 61 corresponding to the straight line segments is an even number.

The arrangement direction of the magnetic members 61 is parallel to the extending direction of the slide rail 10. In the illustrated construction, the track 10 is racetrack-shaped having two straight sections disposed in parallel and an arcuate section connecting the two straight sections. The arc-shaped section is arc-shaped, preferably semicircular.

The magnetic members 61 are arranged in pairs, and it is understood that a pair of magnetic members 61 includes an N-stage and an S-stage, and a plurality of magnetic members 61 are alternately arranged according to NS to cooperate with the mover to drive the slider 20.

In the illustrated construction, the magnetic members 61 are disposed along lengths that are equal in length perpendicular to the direction of extension of the slide rail 10. The magnetic member 61 corresponding to the straight line segment is rectangular in horizontal projection. The magnetic member 61 corresponding to the arc-shaped section is in a trapezoid shape having a narrow inner side and a narrow outer side in horizontal projection.

In the present embodiment, the number of the magnetic members 61 corresponding to the arc segments is an even number. In combination with the foregoing, the period length of the grating ruler is equal to the width of the magnetic member 61, and the arc-shaped section length is equal to the width multiplied by the number of the magnetic members 61. Under the condition that the width of the magnetic piece 61 is fixed, the number of the magnetic pieces 61 is primarily calculated by combining the lengths of the arc-shaped sections, and under the condition that the number of the magnetic pieces 61 is not even (odd or has remainder), the lengths of the arc-shaped sections are adjusted by finely adjusting the diameters of the arc-shaped sections, so that even design of the magnetic pieces 61 is ensured.

In combination with the runway-shaped design, the two arc-shaped sections are symmetrically arranged, and the two straight-line sections are symmetrically arranged. In the present embodiment, the number of the magnetic members 61 corresponding to the arc segments is an even number, and the number of the magnetic members 61 corresponding to each straight line segment is an even number. In other embodiments, the number of the magnetic pieces 61 corresponding to each arc segment is odd, the number of the magnetic pieces 61 corresponding to each straight line segment is odd, or the number of the magnetic pieces 61 corresponding to each arc segment is even, the number of the magnetic pieces 61 corresponding to each straight line segment is odd, or the number of the magnetic pieces 61 corresponding to each arc segment is odd, the number of the magnetic pieces 61 corresponding to each straight line segment is even, only the number of the magnetic pieces 61 is an integer, and the number is generally even, if the number is an integer.

In combination with the foregoing, each time the slider 20 passes a magnetic element 61, the encoder 30 outputs a Z signal and the scanner 50 scans a bar code. Assuming that the gap between two adjacent bar codes is equal to the gap between two adjacent magnetic members 61, the bar codes and the magnetic members 61 are arranged in one-to-one correspondence. It will be appreciated that in the straight section, the bar code has the same width as the magnetic element 61. In the arc section, the width of the bar code is different from the width of the magnetic member 61, and the width of the bar code is adjusted according to the diameter. Let the width of magnetic part 61 mid point be B1, the arc diameter of magnetic part 61 center be D1, the arc diameter that the bar code is located be D2, the width of bar code be B2, then the relation satisfies: d1/b1=d2/B2. B1, D1, D2 are known, then the width of the bar code b2=d2/D1×b1.

Preferably, the bar code is coplanar with the end face of the magnetic member 61 in the extending direction of the slide rail 10.

In the extending direction of the slide rail 10, projections of both side end surfaces of the bar code and the magnetic member 61 on the slide rail 10 overlap. In the straight line section, the extending direction of the slide rail 10 is taken as the front-back direction, the front end surfaces of the bar code and the magnetic piece 61 are coplanar, the normal direction is taken as the front direction, the rear end surfaces are coplanar, and the normal direction is taken as the back direction. This arrangement simplifies the design and facilitates assembly positioning.

In the arc section, along the extending direction of the slide rail 10, the projections of the bar code and the two side end surfaces of the magnetic member 61 on the slide rail 10 overlap. The bar code and the end face of the magnetic member 61 are coplanar and arc-shaped radial planes. This arrangement simplifies the design and facilitates assembly positioning.

In another embodiment of the present application, the width of the magnetic member 61 along the extending direction of the slide rail 10 is 8-20mm. In combination with the foregoing, the width of the magnetic member 61 corresponds to the period length of the Z phase and the width of the bar code.

The width of the magnetic member 61 may be set to 8mm, 10mm, 12mm, 13mm, 15mm, 16mm, 18mm, 19mm, 20mm, etc. by those skilled in the art according to the actual circumstances, and is not limited only herein. The bar code is then adjusted according to the size of the magnetic member 61.

In another embodiment of the present application, referring to fig. 1, the barcode plate 40 is disposed vertically, and the barcode plate 40 is annular and located outside the sliding rail 10. The bar code plate 40, in addition to carrying bar code functions, also serves as the outermost structure of the conveyor line to provide protection for the conveyor line. In other embodiments, the barcode plate 40 may be horizontally disposed, and the barcode scanner 50 is adjusted according to the status of the barcode plate 40, which is not limited herein.

In another embodiment of the present application, referring to fig. 3, the code scanner 50 is located on a central line of the sliding block 20 along the extending direction of the sliding rail 10. The ray of the code scanner 50 is perpendicular to the extending direction of the slide rail 10. The extended line of the ray of the code scanner 50 passes through the center point of the slider 20, so that the position information corresponding to the bar code scanned by the code scanner 50 corresponds to the position of the center point of the slider 20. With this arrangement, the center of the slider 20 is used as a reference point, and positioning and movement control of the product can be facilitated. In other embodiments, the code scanner 50 may be located at a front end position of the sliding block 20 along the extending direction of the sliding rail 10, and is not limited herein.

In another embodiment of the present application, the code scanner 50 is located on the center line of the stator along the extending direction of the sliding rail 10. The ray of the code scanner 50 is perpendicular to the extending direction of the slide rail 10. The extended line of the ray of the code scanner 50 passes through the center point of the stator, so that the position information corresponding to the bar code scanned by the code scanner 50 corresponds to the position of the center point of the stator. In combination with the foregoing, the code scanner 50 is located at the center line of the slider 20 along the extending direction of the slide rail 10, and then the center of the code scanner 50, the center of the slider 20 and the center of the stator are collinear in horizontal projection.

In another embodiment of the present application, the conveying line includes a power supply busbar 71 and a power taking structure 72, the power taking structure 72 is electrically connected with the mover, and the power taking structure 72 and the power supply busbar 71 take power through sliding connection.

Three power supply bus bars 71 are shown in the illustrated construction, corresponding to the hot, neutral and ground lines. The power take-off structure 72 has three conductive members to correspond to the three power supply bus bars 71. The conductive members are in physical contact with the power bus bar 71 to make electrical connection. The driver/stator is connected to the power take-off structure 72 by wires to achieve power. The electricity taking structure 72 is fixedly connected with the sliding block 20, and in the process that the electricity taking structure 72 moves along with the sliding block 20, the electricity taking structure 72 keeps a state of sliding and abutting against the power supply busbar 71, so that the continuity of power connection of the driver is guaranteed.

In this embodiment, the sliding rail 10 is annular, and the power supply busbar 71 is located outside the sliding rail 10. The three power supply busbar 71 are arranged up and down, and the power taking structure 72 is located on the outer side of the slider 20 and connected to the slider 20 through a connecting piece. In combination with the annular design, the power supply busbar 71 is located outside the slide rail 10 and is smaller in curvature of the arc section than the inner side of the slide rail 10, so that the power taking structure 72 is beneficial to keeping the abutting state between the arc section and the straight line section.

In this embodiment, the conveying line includes a coaming, and the barcode plate 40 and the power supply busbar 71 are both fixed on the inner side of the coaming and disposed up and down. In other words, the power supply busbar 71 and the bar code board 40 are integrated on the coaming, and the coaming space is fully utilized, so that the layout is reasonable.

The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather is intended to cover all modifications, equivalents, or alternatives falling within the spirit and principles of the application.

Claims

1. A conveyor line, comprising:

the sliding rail is provided with a plurality of sliding rails,

the sliding block is in sliding connection with the sliding rail;

the driver is used for driving the sliding block to slide;

the encoder is arranged on the sliding block;

the code scanner is arranged on the sliding block;

in the moving process of the sliding block, the code scanner scans the bar code information of the current position, records the last bar code information before power failure as N, records the bar code information after re-power connection as M, and after the conveying line is re-electrified, the driver drives the sliding block to move backwards from the M position to the position corresponding to the Z signal of N.

2. The conveyor line of claim 1, wherein the driver is a linear motor comprising a stator and a mover, the mover being disposed on the slide, the stator comprising a plurality of magnetic elements arranged in sequence along the direction of extension of the slide, the encoder outputting a Z signal as the slide passes one of the magnetic elements.

3. The conveyor line of claim 2, wherein the slide rail is an endless track and has straight and arcuate sections, the number of the magnetic elements corresponding to the arcuate sections being an even number.

4. The conveyor line of claim 2, wherein the bar code is coplanar with an end face of the magnetic member in the direction of extension of the slide rail.

5. The conveyor line of claim 1, wherein the code scanner is located on a centerline of the slider along the extension of the slide rail.

6. The conveyor line of claim 2, wherein the code scanner is located on a centerline of the stator along the extension of the slide rail.

7. Conveyor line according to claim 2, characterized in that the length of the magnetic element in the direction of extension of the slide rail is 8-20mm.

8. The conveyor line according to any one of claims 1 to 7, wherein the rail is an annular rail and is horizontally arranged on a machine, the bar code plate is arranged on the machine and is positioned outside the rail, and the bar code pieces are vertically arranged.

9. A conveyor line according to any one of claims 1 to 7, characterized in that the conveyor line comprises a power supply busbar and a power take-off structure, the driver being electrically connected to the power take-off structure, the power take-off structure being electrically connected to the power supply busbar by sliding; the sliding rail is annular, and the power supply busbar is positioned at the outer side of the sliding rail.

10. An automated production facility comprising a conveyor line according to any one of claims 1 to 9.