CN220077697U - PCB board direction discernment adjustment structure and conveyor - Google Patents

Abstract

The utility model provides a PCB direction identification adjustment structure and a conveying device, comprising a controller, wherein the controller is respectively and electrically connected with an X-ray detection device, a first conveying component and a turning plate component; the X-ray detection device, the first conveying component and the overturning component are sequentially arranged along the conveying direction; a first reversing mechanism is arranged above the first conveying assembly and comprises a first rotating plate, a first rotating driving piece and a first lifting assembly which are sequentially connected, and a vacuum chuck is arranged on the first rotating plate; the turnover plate assembly comprises a turnover frame and a turnover motor, wherein the turnover motor is connected with the turnover frame, an upper conveying belt and a lower conveying belt are arranged on the turnover frame at intervals, and a conveying channel for accommodating the PCB is formed between the upper conveying belt and the lower conveying belt.

Description

PCB board direction discernment adjustment structure and conveyor

Technical Field

The utility model relates to the technical field of PCB processing, in particular to a PCB direction identification and adjustment structure and a conveying device.

Background

PCB (Printed Circuit Board) the Chinese name printed circuit board, also called printed circuit board, is an important electronic component, is a support for electronic components, and is a carrier for electrically interconnecting electronic components. PCB is one of the important components of the electronics industry. Almost every electronic device has electronic components such as an integrated circuit, and a printed board is used for electrically interconnecting the components. The printed circuit board can replace complex wiring to realize electrical connection among elements in a circuit, so that the assembly and welding work of electronic products are simplified, the wiring workload in the traditional mode is reduced, and the labor intensity of workers is greatly reduced; and the whole volume is reduced, the product cost is reduced, and the quality and the reliability of the electronic equipment are improved.

The printed circuit board has good product consistency, can adopt standardized design, and is favorable for realizing mechanization and automation in the production process. Meanwhile, the whole printed circuit board subjected to assembly and debugging can be used as an independent spare part, so that the whole machine product can be conveniently exchanged and maintained. At present, the printed wiring board has been extremely widely applied to the production and manufacture of electronic products.

In the production process of the PCB, the correctness of the machining direction is required to be ensured. In the prior art, the positive and negative directions and the front and back directions of the PCB are difficult to distinguish, and the PCB is often conveyed to the processing device in the wrong direction in the transportation process of the PCB, so that the processing device cannot process the PCB to influence the processing efficiency, or the processing device directly processes the PCB with the wrong direction, so that the product is bad and even scrapped.

Disclosure of Invention

In order to overcome the problems in the related art, the utility model provides the PCB direction identification and adjustment structure and the conveying device, which can identify and adjust the direction of the PCB and ensure that the PCB is conveyed to subsequent processing equipment in a correct mode.

The utility model aims to provide a PCB direction identification and adjustment structure, which comprises a controller, wherein the controller is respectively and electrically connected with an X-ray detection device, a first conveying component and a turning plate component; the X-ray detection device, the first conveying component and the overturning component are sequentially arranged along the conveying direction; a first reversing mechanism is arranged above the first conveying assembly and comprises a first rotating plate, a first rotating driving piece and a first lifting assembly which are sequentially connected, and a vacuum chuck is arranged on the first rotating plate; the turnover plate assembly comprises a turnover frame and a turnover motor, wherein the turnover motor is connected with the turnover frame, an upper conveying belt and a lower conveying belt are arranged on the turnover frame at intervals, and a conveying channel for accommodating a PCB board is formed between the upper conveying belt and the lower conveying belt.

In a preferred technical scheme of the utility model, the X-ray detection device comprises a mounting plate, an X-ray emitter and an X-ray receiver, wherein the X-ray emitter and the X-ray receiver are arranged on the mounting plate at intervals up and down, the mounting plate is arranged at the moving end of the traversing assembly, and the mounting plate is driven by the traversing assembly to move perpendicular to the conveying direction.

In a preferred technical scheme of the utility model, two X-ray detection devices are symmetrically arranged.

In the preferred technical scheme of the utility model, the upper conveying belt and the lower conveying belt are roller conveyors, and the turndown frame is provided with pressing plate assemblies above the upper conveying belt and below the lower conveying belt; the pressing plate assembly comprises a vertically arranged pressing plate air cylinder, the pressing plate air cylinder is located at a gap between adjacent conveying rollers of the roller conveyor, a pressing block is mounted at the tail end of an air cylinder rod of the pressing plate air cylinder, and the pressing block faces the conveying channel.

In the preferred technical scheme of the utility model, a transplanting assembly is arranged at the input side of the X-ray detection device; the transplanting assembly comprises a transplanting plate, and a vacuum chuck is arranged on the transplanting plate; the transplanting plate is arranged at the moving end of the longitudinal moving assembly through the lifting mechanism.

In the preferred technical scheme of the utility model, the input side of the transplanting assembly is provided with a second conveying assembly, a centering mechanism is arranged on the second conveying assembly, and an induction probe is arranged on a centering plate of the centering mechanism; the second conveying assembly, the centering mechanism and the inductive probe are electrically connected with the controller.

In the preferred technical scheme of the utility model, a second reversing mechanism is arranged above the second conveying assembly, the second reversing mechanism comprises a second rotating plate, a second rotating driving piece and a second lifting assembly which are sequentially connected, and a vacuum chuck is arranged on the second rotating plate.

In the preferred technical scheme of the utility model, the second conveying assembly is provided with an avoiding opening for giving way to the transplanting assembly, and the transplanting assembly is arranged in the avoiding opening.

Another object of the present utility model is to provide a conveying device.

In a preferred technical scheme of the utility model, the conveying device comprises a rack, wherein the PCB direction identification and adjustment structure is arranged on the rack.

In the preferred technical scheme of the utility model, the rack is provided with the shield, the PCB direction recognition and adjustment structure is positioned in the shield, and the shield is provided with the observation window and the switch door.

Because the conveying device adopts the PCB direction identification and adjustment structure, the conveying device can identify and adjust the direction of the PCB in the conveying process, and the PCB is ensured to be conveyed to subsequent processing equipment in a correct mode.

The beneficial effects of the utility model are as follows:

according to the PCB direction identification and adjustment structure provided by the utility model, the direction identification on the PCB is obtained through the X-ray detection device, and the controller judges the direction of the PCB according to the obtained direction identification; the PCB with the direction error of the first reversing mechanism is subjected to 180-degree reversing; the turnover plate assembly can turn over and reverse the PCB with wrong direction; through the mutual cooperation of the X-ray detection device, the conveying assembly, the turning plate assembly, the reversing mechanism and the controller, the direction identification and adjustment of the PCB are realized, and the PCB is ensured to be conveyed to subsequent processing equipment in a correct mode.

The utility model also provides a conveying device comprising the pretightening force adjusting device, which can identify and adjust the direction of the PCB in the conveying process, and ensure that the PCB is conveyed to subsequent processing equipment in a correct mode.

Drawings

Fig. 1 is a schematic diagram of a PCB board direction recognition adjustment structure.

Fig. 2 is a schematic diagram of a PCB board direction recognition adjustment structure.

Fig. 3 is a schematic diagram of a PCB board direction recognition adjustment structure applied to a conveying device.

Reference numerals:

a-the frame; b-a shield; a 100-X-ray detection device; a 110-X-ray emitter; a 120-X-ray receiver; 130-mounting plate; 140-traversing assembly; 200-a first transport assembly; 300-a flap assembly; 310-turning over the motor; 320-roll-over stand; 330-upper conveyor belt; 340-lower conveyor belt; 350-a platen cylinder; 360-briquetting; 400-a first reversing mechanism; 410-a first rotating plate; 420-a first rotary drive; 430-a first lifting assembly; 500-vacuum chuck; 600-transplanting assembly; 610-transplanting plates; 620-lifting mechanism; 630-a longitudinal movement assembly; 700-a second delivery assembly; 710—a centering mechanism; 800-a second reversing mechanism; 810-a second rotating plate; 820-a second rotary drive; 830-a second lift assembly; 900-a longitudinal shift line type module.

Detailed Description

Preferred embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

It should be understood that although the terms "first," "second," "third," etc. may be used herein to describe various information, these information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the utility model. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

The printed circuit board has good product consistency, can adopt standardized design, and is favorable for realizing mechanization and automation in the production process. Meanwhile, the whole printed circuit board subjected to assembly and debugging can be used as an independent spare part, so that the whole machine product can be conveniently exchanged and maintained. At present, the printed wiring board has been extremely widely applied to the production and manufacture of electronic products.

In the production process of the PCB, the correctness of the machining direction is required to be ensured. In the prior art, the positive and negative directions and the front and back directions of the PCB are difficult to distinguish, and the PCB is often conveyed to the processing device in the wrong direction in the transportation process of the PCB, so that the processing device cannot process the PCB to influence the processing efficiency, or the processing device directly processes the PCB with the wrong direction, so that the product is bad and even scrapped.

Example 1

In view of the foregoing, embodiment 1 provides a PCB direction identifying and adjusting structure, which can identify and adjust the direction of the PCB, and ensure that the PCB is conveyed to the subsequent processing equipment in a correct manner.

As shown in fig. 1-2, a PCB direction identifying and adjusting structure includes a controller, where the controller is electrically connected to an X-ray detection device 100, a first conveying assembly 200, and a flap assembly 300, the X-ray detection device 100 is used to scan a PCB to obtain a direction identifier, and the first conveying assembly 200 is used to send the PCB to the flap assembly 300;

the X-ray detection device 100, the first conveying component 200 and the overturning component are sequentially arranged along the conveying direction;

a first reversing mechanism 400 is arranged above the first conveying assembly 200, and the first reversing mechanism 400 is used for reversing the PCB board by 180 degrees; the first reversing mechanism 400 includes a first rotating plate 410, a first rotation driving member 420, and a first lifting assembly 430, which are sequentially connected, wherein a vacuum chuck 500 is disposed on the first rotating plate 410; the turnover plate assembly 300 comprises a turnover frame 320 and a turnover motor 310, wherein the turnover motor 310 is connected with the turnover frame 320, an upper conveying belt 330 and a lower conveying belt 340 are arranged on the turnover frame 320 at intervals, and a conveying channel for accommodating a PCB board is formed between the upper conveying belt 330 and the lower conveying belt 340; illustratively, the roll-over stand 320 is mounted to an output shaft of the roll-over motor 310.

Illustratively, in practice, the first reversing mechanism 400 is mounted on a traveling linear module 900.

Illustratively, in practical applications, the first conveying assembly 200 is a conveyor, preferably a roller conveyor, the first rotary driving member 420 is a rotary cylinder or a rotary motor, and the first lifting assembly 430 is a linear module or a cylinder.

In this embodiment, the X-ray detection device 100 includes a mounting plate 130, an X-ray emitter 110, an X-ray receiver 120, where the X-ray emitter 110 and the X-ray receiver 120 are mounted on the mounting plate 130 at an up-down interval, the mounting plate 130 is mounted on a moving end of the traversing assembly 140, the mounting plate 130 is driven by the traversing assembly 140 to move perpendicular to the conveying direction, and before conveying, the position of the mounting plate 130 can be correspondingly adjusted according to the size of the PCB board by the traversing assembly 140, so as to ensure that the X-ray detection device 100 can obtain the direction identifier.

Illustratively, in practice, the traversing assembly 140 employs a linear module.

In this embodiment, two X-ray detection devices 100 are symmetrically arranged to scan the left and right sides of the PCB board at the same time, so as to obtain the direction identifier.

For example, in practical application, a direction mark is arranged on the surface or the inner side of the PCB, and the direction mark is arranged on the left side or the right side of the center line of the length direction of the PCB; in the conveying process, firstly, in the process that the PCB enters the first conveying assembly 200 in a preset direction, the left side and the right side of the PCB are detected by the X-ray detection device 100, and a direction mark is obtained; then, the controller judges whether 180-degree reversing and/or overturning is needed according to the direction identification; if 180-degree reversing and overturning are not needed, the direction of the PCB is correct, and the PCB is output to a subsequent processing device after passing through the first conveying assembly 200 and the turning plate assembly 300; if the PCB needs to be subjected to 180 degrees of reversing, the PCB is conveyed to a first reversing station under the first reversing mechanism 400 by the first conveying component 200, the first lifting component 430 drives the first rotating plate 410 to move downwards, the PCB is absorbed by the vacuum chuck 500, then the first lifting component 430 drives the first rotating plate 410 to move upwards, the first rotating driving component 420 drives the first rotating plate 410 to rotate 180 degrees, 180 degrees of reversing of the PCB is completed, after reversing, the first lifting component 430 drives the first rotating plate 410 to move downwards to place the PCB in the first conveying component 200, the empty chuck is not used for absorbing the PCB, and the replaced PCB is conveyed into a conveying channel of the reversing component by the first conveying component 200; if the PCB needs to be turned and commutated, the turning motor 310 drives the turning frame 320 to rotate 180 degrees, so that the turning and the inversion of the PCB are realized, and the PCB is output.

For example, in practical application, the controller determines that the direction of the PCB is wrong according to whether the direction is identified with the direction detected by the X-ray detection device 100 on the preset side; if the preset side does not acquire the direction mark, judging that the direction of the PCB is wrong at the moment, and rotating for 180 degrees; if the direction mark is not acquired by the preset side, the rotation of 180 degrees is not needed; if the direction mark is not acquired by the preset side, the acquired direction mark is rotated 180 degrees and then is compared with the standard graph, and the controller judges the direction of the PCB according to whether the shape of the detected direction mark can be overlapped with the standard graph or not; if the two types of the PCB cannot be overlapped, the direction error of the PCB is indicated, and the direction error of the PCB is judged at the moment, and the PCB needs to be turned over; and if the detected shape of the mark can be overlapped with the standard graph, judging that the direction of the PCB is correct.

In one embodiment, the upper and lower conveying belts 330 and 340 are roller conveyors, and the roll-over frame 320 is provided with a platen assembly above the upper conveying belt 330 and below the lower conveying belt 340; the pressing plate assembly comprises a vertically arranged pressing plate air cylinder 350, the pressing plate air cylinder 350 is positioned at a gap between adjacent conveying rollers of the roller conveyor, a pressing block 360 is mounted at the tail end of an air cylinder rod of the pressing plate air cylinder 350, and the pressing block 360 faces to a conveying channel; when the turnover is needed, the pressing block 360 is driven by the pressing plate cylinder 350 to press and fix the PCB, so that the PCB is prevented from being separated from the conveying channel in the turnover process.

In one embodiment, in order to realize automatic feeding, a transplanting assembly 600 is disposed at the input side of the X-ray detection device 100; the transplanting assembly 600 comprises a transplanting plate 610, wherein a vacuum chuck 500 is arranged on the transplanting plate 610; the transplanting plate 610 is mounted on the moving end of the longitudinal moving component 630 through a lifting mechanism 620; when transplanting is required, the lifting mechanism 620 drives the transplanting plate 610 to move to the PCB, the transplanting plate 610 adsorbs the PCB through the vacuum chuck 500, then the longitudinal moving component 630 drives the transplanting plate 610 to convey the PCB to the first conveying component 200, and in the conveying process, the PCB can pass through the X-ray detection device 100, and at the moment, the X-ray detection device 100 detects the PCB.

Illustratively, in practice, the longitudinal movement assembly 630 is a linear module and the lifting mechanism 620 is a linear module or cylinder.

In this embodiment, the input side of the transplanting assembly 600 is provided with a second conveying assembly 700, a centering mechanism 710 is mounted on the second conveying assembly 700, and an induction probe is mounted on a centering plate of the centering mechanism 710; the second conveying assembly 700, the centering mechanism 710 and the sensing probe are all electrically connected with the controller.

Illustratively, in practice, the centering mechanism 710 employs a centering structure known in the art, and the centering mechanism 710 includes two centering plates symmetrically disposed on both sides of the conveying direction, and the two centering plates are driven to move toward or away from each other by the same bidirectional telescopic member or different unidirectional telescopic members.

For example, in practical applications, a centering mechanism 710 may be added to the first reversing station.

In this embodiment, a second reversing mechanism 800 is disposed above the second conveying assembly 700, where the second reversing mechanism 800 includes a second rotating plate 810, a second rotary driving member 820, and a second lifting assembly 830 that are sequentially connected, and a vacuum chuck 500 is disposed on the second rotating plate 810.

Illustratively, in practical applications, the second conveying assembly 700 is a conveyor, preferably a roller conveyor, the second rotary drive member 820 is a rotary cylinder or a rotary motor, and the second elevating assembly 830 is a linear module or a cylinder.

In this embodiment, the middle part of the output side of the second conveying assembly 700 and the middle part of the input side of the first conveying assembly 200 are provided with avoiding ports for letting out the transplanting assembly 600, and the transplanting assembly 600 is disposed in the avoiding ports.

For example, in practical application, when the PCB needs to be transported in a state that the long side is perpendicular to the conveying direction, and the PCB is conveyed to the centering detection position through the second conveying component 700, if the sensing probe is not triggered after the centering mechanism 710 moves in place, the controller determines that the position of the PCB is wrong, and at this time, the short side is perpendicular to the conveying direction; at this time, the second reversing mechanism 800 acts to reverse the PCB board by 90 degrees, and the action principle of the second reversing mechanism 800 acts is communicated with the first reversing mechanism 400, which is not described herein.

The PCB direction identification adjustment structure acquires a direction mark on a PCB through the X-ray detection device 100, and the controller judges the direction of the PCB according to the acquired direction mark; the first reversing mechanism 400 can reverse the PCB with wrong direction by 180 degrees; the turnover plate assembly 300 can turn over and reverse the PCB with wrong direction; through the mutual cooperation of the X-ray detection device 100, the conveying assembly, the turning plate assembly 300, the reversing mechanism and the controller, the direction identification and adjustment of the PCB are realized, and the PCB is ensured to be conveyed to subsequent processing equipment in a correct mode.

Example 2

This embodiment only describes the differences from embodiment 1, and the remaining technical features are the same as those of the above-described embodiment. Further, the PCB board direction recognition adjustment structure in embodiment 1 is applied to a conveying device.

As shown in fig. 3, the conveying device includes a rack a, and the rack a is provided with a PCB board direction recognition adjustment structure in embodiment 1.

In this embodiment, a shield B is mounted on the rack a, the PCB board direction recognition and adjustment structure is located in the shield B, and an observation window and a door opening and closing are disposed on the shield B.

In this embodiment, since the conveying device adopts the PCB direction identifying and adjusting structure in embodiment 1, the conveying device can identify and adjust the direction of the PCB during the conveying process, so as to ensure that the PCB is conveyed to the subsequent processing equipment in a correct manner.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures. In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "horizontal direction, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. The utility model provides a PCB board direction discernment adjustment structure, includes controller, its characterized in that: the controller is respectively and electrically connected with the X-ray detection device, the first conveying assembly and the turning plate assembly;

the X-ray detection device, the first conveying component and the overturning component are sequentially arranged along the conveying direction;

a first reversing mechanism is arranged above the first conveying assembly and comprises a first rotating plate, a first rotating driving piece and a first lifting assembly which are sequentially connected, and a vacuum chuck is arranged on the first rotating plate;

the turnover plate assembly comprises a turnover frame and a turnover motor, wherein the turnover motor is connected with the turnover frame, an upper conveying belt and a lower conveying belt are arranged on the turnover frame at intervals, and a conveying channel for accommodating a PCB board is formed between the upper conveying belt and the lower conveying belt.

2. The PCB board direction recognition adjustment structure of claim 1, wherein:

the X-ray detection device comprises a mounting plate, an X-ray emitter and an X-ray receiver, wherein the X-ray emitter and the X-ray receiver are mounted on the mounting plate at intervals up and down, the mounting plate is mounted at the moving end of the transverse moving assembly, and the mounting plate is driven by the transverse moving assembly to move perpendicular to the conveying direction.

3. The PCB board direction recognition adjustment structure of claim 2, wherein:

the X-ray detection devices are symmetrically arranged in two.

4. The PCB board direction recognition adjustment structure of claim 1, wherein:

the upper conveying belt and the lower conveying belt are roller conveyor, and the turning frame is provided with pressing plate components above the upper conveying belt and below the lower conveying belt;

the pressing plate assembly comprises a vertically arranged pressing plate air cylinder, the pressing plate air cylinder is located at a gap between adjacent conveying rollers of the roller conveyor, a pressing block is mounted at the tail end of an air cylinder rod of the pressing plate air cylinder, and the pressing block faces the conveying channel.

5. The PCB board direction recognition adjustment structure of claim 1, wherein: the input side of the X-ray detection device is provided with a transplanting assembly;

the transplanting assembly comprises a transplanting plate, and a vacuum chuck is arranged on the transplanting plate;

the transplanting plate is arranged at the moving end of the longitudinal moving assembly through the lifting mechanism.

6. The PCB board direction identification adjustment structure of claim 5, wherein:

the input side of the transplanting assembly is provided with a second conveying assembly, a centering mechanism is arranged on the second conveying assembly, and an induction probe is arranged on a centering plate of the centering mechanism; the second conveying assembly, the centering mechanism and the inductive probe are electrically connected with the controller.

7. The PCB board direction identification adjustment structure of claim 6, wherein:

the second reversing mechanism is arranged above the second conveying assembly and comprises a second rotating plate, a second rotating driving piece and a second lifting assembly which are sequentially connected, and a vacuum chuck is arranged on the second rotating plate.

8. The PCB board direction identification adjustment structure of claim 7, wherein: and an avoidance port for giving way to the transplanting assembly is formed in the second conveying assembly, and the transplanting assembly is arranged in the avoidance port.

9. A conveyor, includes frame, its characterized in that: the PCB direction recognition and adjustment structure of any one of claims 1-8 is arranged on the frame.

10. The delivery device of claim 9, wherein: the rack is provided with a shield, the PCB direction recognition and adjustment structure is positioned in the shield, and the shield is provided with an observation window and a switch door.