CN210527790U

CN210527790U - Conveying belt

Info

Publication number: CN210527790U
Application number: CN201921685225.XU
Authority: CN
Inventors: 武静; 张虎
Original assignee: Lens Intelligent Robot Changsha Co Ltd
Current assignee: Lens Intelligent Robot Changsha Co Ltd
Priority date: 2019-10-09
Filing date: 2019-10-09
Publication date: 2020-05-15
Anticipated expiration: 2029-10-09

Abstract

The utility model discloses a conveyor belt, which comprises a plurality of belt lines, wherein each belt line comprises a positioning conveyor belt, a positioning mechanism is arranged on the side surface of each positioning conveyor belt, each positioning mechanism comprises a first inductor and a telescopic device which are sequentially arranged along the transmission direction, and the first inductors and the telescopic devices are respectively and electrically connected with a controller; the first sensor is used for sensing whether the transmission piece exists or not, and the controller is used for controlling the stretching-out of the telescopic device according to the detection result of the first sensor so as to block the operation of the transmission piece. Based on the setting of first inductor and telescoping device, can avoid the transmission piece to transport to the position that surpasss the telescoping device place to effectively improve the accuracy of location, bring the facility for follow-up work.

Description

Conveying belt

Technical Field

The utility model relates to a bat printing technical field, in particular to conveyer belt.

Background

When the pad printing equipment carries out pad printing, a conveying belt is needed to be adopted to convey a mobile phone screen waiting pad printing product, and when the screen is conveyed to a set station, the conveying belt is needed to be stopped and the material taking mechanism is needed to take away the product to be pad printed. In the prior art, it is common to directly stop the conveyor belt to stop the products to be pad printed at the set station.

However, due to the problems that the placement position of the products to be pad-printed on the conveyor belt may be advanced relative to the standard placement position, and the like, when the conveyor belt is stopped, the products to be pad-printed may be stopped at the set material taking position, which brings difficulty to the operation of the material taking mechanism.

Therefore, how to improve the positioning accuracy of the conveying elements on the conveying belt is a technical problem that needs to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a conveyer belt can improve the accuracy of transmission piece location.

In order to achieve the above object, the utility model provides a following technical scheme:

a conveying belt comprises a plurality of belt lines, wherein each belt line comprises a positioning conveying belt, a positioning mechanism is arranged on the side surface of each positioning conveying belt, each positioning mechanism comprises a first inductor and a telescopic device which are sequentially arranged along the conveying direction, and the first inductor and the telescopic devices are respectively and electrically connected with a controller; the first sensor is used for sensing whether the transmission piece exists or not, and the controller is used for controlling the extension of the telescopic device according to the detection result of the first sensor so as to block the operation of the transmission piece.

Preferably, the positioning mechanism further comprises a clamping device arranged on the side surface of the positioning conveying belt, the first inductor, the clamping device and the telescopic device are sequentially arranged along the transmission direction, and the clamping device is electrically connected with the controller; the controller is used for controlling the clamping device to be close to the transmission piece in the direction perpendicular to the transmission direction according to the detection result of the first sensor so as to clamp the transmission piece.

Preferably, the positioning conveyor belt is electrically connected to the controller, and the controller is configured to control a belt corresponding to the positioning mechanism in the positioning conveyor belt to stop operating according to a detection result of the first sensor.

Preferably, the telescopic device comprises stop posts arranged on two sides of the positioning conveying belt, the stop posts are connected to a telescopic driving device to drive the stop posts to stretch and retract along a belt surface of the positioning conveying belt, and the telescopic driving device is electrically connected to the controller.

Preferably, the tail end of the belt line is provided with an idler pulley.

Preferably, a second sensor is arranged at the starting end of the belt line, and the second sensor is electrically connected to the controller; the controller is used for controlling the belt line to start to operate according to the detection result of the second sensor.

Preferably, the belt line further comprises a transition conveyor belt butted to the tail end of the positioning conveyor belt, the tail end of the positioning conveyor belt is provided with a third sensor, and the third sensor and the transition conveyor belt are respectively and electrically connected to the controller; the third sensor is used for sensing whether the transmission piece exists or not, and the controller is used for controlling the rotating speed of the transition conveying belt according to the detection result of the third sensor.

Preferably, the location conveyer belt includes at least two edges location belt that transmission direction docks in proper order, one of them location belt is the side and corresponds the setting positioning mechanism's benchmark location belt.

Preferably, at least two belt lines are arranged in sequence along a direction perpendicular to the conveying direction, and the positioning mechanisms on the adjacent belt lines are arranged in a staggered manner in the conveying direction.

Preferably, a fourth sensor is arranged at the tail end of the positioning belt adjacent to the former positioning belt of the reference positioning belt, the fourth sensor and the sensor arranged at the tail end of the reference positioning belt are used for sensing whether a transmission piece exists or not, and the fourth sensor and the sensor at the tail end of the reference positioning belt are respectively and electrically connected to the controller; the controller is used for controlling the starting and stopping of the positioning belt where the fourth inductor is located according to the detection results of the fourth inductor and the inductor arranged at the tail end of the reference positioning belt.

The utility model provides a conveying belt, which comprises a plurality of belt lines, wherein each belt line comprises a positioning conveying belt, a positioning mechanism is arranged on the side surface of each positioning conveying belt, each positioning mechanism comprises a first inductor and a telescopic device which are sequentially arranged along the transmission direction, and the first inductors and the telescopic devices are respectively and electrically connected with a controller; the first sensor is used for sensing whether the transmission piece exists or not, and the controller is used for controlling the stretching-out of the telescopic device according to the detection result of the first sensor so as to block the operation of the transmission piece.

When being applied to the bat printing equipment, a concrete bat printing in-process, treat that the bat printing product is placed on the location conveyer belt, when through first inductor, first inductor sends the signal to the controller, and the controller corresponds the control telescoping device promptly and stretches out, is blocked when treating that the bat printing product moves to the telescoping device position, can not continue to pass through, later, the picking mechanism will treat that the bat printing product takes away to go the bat printing.

Based on the setting of first inductor and telescoping device, can avoid the transmission piece to transport to the position that surpasss the telescoping device place to effectively improve the accuracy of location, bring the facility for follow-up work.

Drawings

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

Fig. 1 is a top view of a conveyor belt provided by the present invention;

fig. 2 is a structural diagram of the positioning mechanism in the conveying belt according to the present invention.

In fig. 1 and 2:

1-belt line, 11-positioning conveyor belt, 111-positioning belt, 112-reference positioning belt, 12-transition conveyor belt, 13-idler, 14-second inductor, 15-third inductor, 16-fourth inductor, 17-first belt line, 18-second belt line, 19-third belt line, 110-fourth belt line;

2-positioning mechanism, 21-telescoping device, 211-catch, 212-telescoping drive, 22-clamping device, 221-clamping catch, 222-clamping drive, 23-first sensor.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The core of the utility model is to provide a conveyer belt can improve the accuracy of transmission piece location.

In the description of the present invention, it should be noted that the first, second, third and fourth are only used for descriptive purposes and are not to be construed as indicating or implying relative importance. In addition, the beginning, the end, the front, and the back of the belt line and each belt are based on the conveying direction, and are only for convenience of description, and are not to be construed as limiting the present application.

In a specific embodiment of the conveyer belt, please refer to fig. 1 and fig. 2, including a plurality of belt line 1, belt line 1 is including location conveyer belt 11, and the side of location conveyer belt 11 is equipped with positioning mechanism 2, and positioning mechanism 2 includes first inductor 23 and telescoping device 21 that set gradually along the direction of transmission, and first inductor 23, telescoping device 21 are electric connection director respectively. The first sensor 23 is used for sensing whether the transmission member exists or not, and the controller is used for controlling the extension of the telescopic device 21 according to the detection result of the first sensor 23 so as to block the operation of the transmission member.

Wherein, the utility model provides an each inductor can set up the existence of position response transmission piece at it, specifically can be infrared inductor, ultrasonic inductor or other kinds of inductor. When the transmission piece begins to pass through the sensor or when the transmission piece completely leaves the position of the sensor, the sensor can send a corresponding signal to the controller. In addition, the controller can pre-store the priority of each inductor according to the requirement so as to avoid contradiction of control instructions.

When the first sensor 23 senses the transmission member, which indicates that the transmission member passes through the position where the first sensor 23 is disposed, the controller controls the telescopic device 21 to extend to block the transmission member, so that the transmission member can be accurately stopped at the position defined by the telescopic device 21.

It should be noted that, in the present embodiment, the conveyor belt is used for illustrating an example of being applied to a pad printing device, and accordingly, the conveying member may be a product such as a mobile phone glass, but it should not be understood as a limitation to the present application. Besides pad printing equipment, the conveying belt can also be applied to other equipment needing a conveying function, such as a bag making, filling and sealing machine.

The utility model provides a specific bat printing in-process, treat that bat printing product places on location conveyer belt 11, when through first inductor 23, first inductor 23 sends the signal to the controller, and the controller corresponds control telescoping device 21 promptly and stretches out, is blocked when treating that bat printing product moves to telescoping device 21 position, can not continue to pass through, and later, the picking mechanism will be treated the bat printing product and take away to go the bat printing.

Preferably, a certain distance should be provided between the first sensor 23 and the telescopic device 21 to ensure that the telescopic device 21 is fully extended before the arrival of the transmission member. In addition, according to the distance relationship between the first sensor 23 and the telescopic device 21, the controller may control the telescopic device 21 to extend when receiving the detection result of the first sensor 23, or may control the telescopic device 21 to extend after receiving the detection result of the first sensor 23.

For the retraction and reset control of the telescopic device 21, the controller can specifically control the telescopic device 21 to retract after the telescopic device 21 extends for a preset time period, or control the telescopic device 21 to retract and reset when a signal that the material taking mechanism starts to take materials is received.

It can be seen that, based on the arrangement of the first sensor 23 and the telescopic device 21, the transmission member can be prevented from being transported to a position beyond the telescopic device 21, so that the positioning accuracy is effectively improved, and convenience is brought to subsequent work.

Further, referring to fig. 1, the positioning mechanism 2 further includes a clamping device 22 disposed on a side surface of the positioning conveyor belt 11, the first sensor 23, the clamping device 22 and the expansion device 21 are sequentially disposed along the transmission direction, and the clamping device 22 is electrically connected to the controller; the controller is used for controlling the clamping device 22 to approach the transmission piece in the direction perpendicular to the transmission direction according to the detection result of the first sensor 23 so as to clamp the transmission piece.

The clamping device 22 can center the transport member perpendicular to the transport direction to adjust the positioning of the skewed products to be pad printed on the conveyor belt 11, further facilitating the removal of the material from the material pick-up mechanism. In particular, the gripping device 22 is retractable in a direction parallel to the belt face and perpendicular to the transport direction.

In addition, for resetting of the clamping device 22, the controller may specifically control the clamping device 22 to reset after the clamping device 22 clamps for a preset time period, or control the clamping device 22 to reset when a signal that the material taking mechanism starts to take the material is received. More specifically, the gripping means 22 and the telescopic means 21 can be reset simultaneously.

Further, the positioning conveyor belt 11 is electrically connected to a controller, and the controller is configured to control a belt corresponding to the positioning mechanism 2 in the positioning conveyor belt 11 to stop operating according to a detection result of the first sensor 23.

It should be noted that the positioning conveyor belt 11 may include one belt or at least two belts, and the belt corresponding to the positioning mechanism 2 is timely controlled to stop operating according to the detection result of the first sensor 23, which is beneficial to further improving the positioning effect on the transmission member.

Particularly, in a specific pad printing process, the controller preferably controls the corresponding belt to stop running after the first sensor 23 detects that the product to be pad printed extends out of the telescopic device 21 for a period of time, so that the transmission part is guaranteed to move to a position abutting against the telescopic device 21, and the situation that the product to be pad printed lags behind the set material taking position after the corresponding belt stops running is avoided.

Further, as shown in fig. 2, the clamping device 22 includes clamping positioning pillars 221 disposed on two sides of the positioning conveyor 11, and two, three, or other numbers may be disposed on each side. Each side of the positioning conveyor belt 11 is provided with at least two clamping positioning columns 221 in sequence along the conveying direction. The clamping positioning columns 221 are connected to a clamping driving device 222 to drive the clamping positioning columns 221 which position both sides of the conveyor belt 11 to clamp or unclamp the conveying member in a direction perpendicular to the conveying direction. The clamping driving device 222 is electrically connected to the controller, and the controller correspondingly controls the clamping device 22 by controlling the clamping driving device 222. The clamping drive 222 may be embodied as a pneumatic cylinder or an electric motor.

Clamping positioning columns 221 are adopted to clamp the transmission piece, so that each clamping positioning column 221 can be favorably contacted with the transmission piece, particularly the transmission piece with uneven side surface, and the positioning effect is guaranteed.

Of course, in other embodiments, a plate-shaped positioning plate may be disposed on each side of the positioning conveyor belt 11 to cooperate with the clamping transmission member.

Further, referring to fig. 2, the retractable device 21 includes stop posts 211 disposed on both sides of the positioning conveyor 11. The bars 211 are connected to a telescopic driving device 212 to drive the bars 211 to be telescopic perpendicularly to the belt surface of the positioning conveyor belt 11. The telescopic driving device 212 is electrically connected to the controller. The controller controls the telescopic device 21 by controlling the telescopic driving device 212 correspondingly. The telescopic driving means 212 may be a cylinder or a motor.

The stop posts 211 are arranged on both sides of the positioning conveyor belt 11, so that the blocking effect on the conveying piece can be ensured.

Further, the tail end of the belt line 1 is provided with an idler wheel 13, and the idler wheel 13 can be used for transferring the glass and other transferring pieces between the belt line 1 and the rear equipment so as to prevent the glass and other transferring pieces from being jammed or falling.

Further, a second sensor 14 is arranged at the starting end of the belt line 1, and the second sensor 14 is electrically connected to the controller. The controller is used for controlling the belt line 1 to start running according to the detection result of the second inductor 14

Because the belt line 1 probably appears the condition of pause operation because of the user demand in the operation, under this state, based on the setting of second inductor 14, the controller can be when second inductor 14 detects the transmission piece for the first time each belt in the belt line 1 that corresponds begins to operate, is favorable to the energy saving, accurate control belt line 1's start-up time. Wherein, the controller controls the belt line 1 to start running, and comprises the step of controlling part of the belts in the belt line 1 to start running or the step of controlling the whole belts to start running.

Further, referring to fig. 1, the belt line 1 further includes a transition conveyor belt 12 connected to the tail end of the positioning conveyor belt 11, a third sensor 15 is disposed at the tail end of the positioning conveyor belt 11, and the third sensor 15 and the transition conveyor belt 12 are electrically connected to the controller respectively. The third sensor 15 is used for sensing whether the transmission member exists or not, and the controller is used for controlling the rotating speed of the transition conveyer belt 12 according to the detection result of the third sensor 15.

On the positioning conveyor belt 11, after the products to be pad-printed are taken away by the material taking mechanism, another pad-printed product is usually required to be placed on the positioning conveyor belt 11 to be transported backwards as a transport member to be transported to an oven or other rear equipment at the tail end of the belt line 1 for the next process. Since the running speed of the positioning conveyor belt 11 may not be consistent with the running speed of the pad-printed product on the oven, the pad-printed product does not move smoothly during the docking process. Based on the third inductor 15 and the transition conveyer belt 12 added in the embodiment, the problem can be effectively solved.

Specifically, when the third sensor 15 starts to sense the transmission member, a signal is sent to the controller, which indicates that the transmission member is about to move onto the transition conveyor belt 12, and the controller adjusts the rotation speed of the transition conveyor belt 12 to be the same as that of the belt at the tail end of the positioning conveyor belt 11, so that the transmission member can move onto the transition conveyor belt 12 smoothly; when the third sensor 15 does not sense the transmission piece, a signal is sent to the controller, which indicates that the transmission piece completely passes through the position of the third sensor 15, and the controller can immediately or after a preset time length adjust the rotating speed of the transition conveyor belt 12 to be the same as the transmission speed of the rear equipment, so that the transmission piece on the transition conveyor belt 12 is stably transmitted to the rear equipment, and the problems of slipping and the like of the transmission piece in the transition between the belt line 1 and the rear equipment are effectively avoided. In addition, because the third sensor 15 is arranged at the tail end of the positioning conveyer belt 11 which is closer to the transition conveyer belt 12, the conveying piece can be quickly moved to the transition conveyer belt 12 from the positioning conveyer belt 11 after the speed of the transition conveyer belt 12 is adjusted.

It should be noted that, after the positioning mechanism 2 positions the product to be pad-printed, the controller may first control the positioning conveyor belt 11 to stop operating, and control the positioning mechanism 2 to reset and then take out the product by the material taking mechanism. Then, another material taking mechanism places a pad printed product at the position where the original product to be pad printed is placed (the pad printed product can be the same product or different products from the previous product to be pad printed at the same position), the controller controls the positioning conveyer belt 11 to operate so as to transmit the pad printed product, more specifically, to improve the positioning precision of the pad printed product, the controller can firstly control the positioning mechanism 2 to position the pad printed product, and then control the positioning conveyer belt 11 to operate so as to transmit the pad printed product after the mechanism 2 to be positioned is reset.

Further, the positioning conveyor belt 11 includes at least two positioning belts 111 that are sequentially abutted along the conveying direction, wherein one of the positioning belts 111 is a reference positioning belt 112 with a side surface corresponding to the positioning mechanism 2. Among them, generally, a belt includes an endless belt body and a pulley supported inside the endless belt body. As shown in fig. 1, the positioning conveyor belt 11 includes two positioning belts 111 arranged in sequence along the conveying direction, however, in other embodiments, the positioning conveyor belt 11 may include 3, 5 or other numbers of positioning belts.

Because each positioning conveyor belt 11 is composed of at least two positioning belts 111, the maintenance, the transportation and the assembly of the positioning conveyor belts 11 are convenient. In addition, the running speed and the opening and closing condition of each positioning belt 111 can be respectively controlled according to actual needs, which is beneficial to improving the applicability of the positioning conveyor belt 11.

Further, at least two belt lines 1 are arranged in sequence along the direction perpendicular to the conveying direction, and the positioning mechanisms 2 on the adjacent belt lines 1 are arranged in a staggered mode in the conveying direction, so that collision of the positioning mechanisms 2 caused by actions perpendicular to the conveying direction is avoided, or collision of the material taking mechanisms in the material taking and placing process is reduced.

It should be noted that, because the required operation conditions of the belt lines 1 may not be completely consistent, the controller preferably controls the belt lines 1 independently, and the control of the belt lines 1 does not affect each other.

Specifically, as shown in fig. 1, the number of the belt threads 1 is 4, and the belt threads are a first belt thread 17, a second belt thread 18, a third belt thread 19 and a fourth belt thread 110 in sequence. In each belt line 1, a first positioning belt, a second positioning belt and a transition conveyor belt 12 are arranged along the conveying direction in sequence, the first positioning belts 111 have the same length, the head ends and the tail ends of the first positioning belts are aligned in the direction perpendicular to the conveying direction, the second positioning belts 111 have the same length, the head ends and the tail ends of the second positioning belts are aligned in the direction perpendicular to the conveying direction, and the transition conveyor belts 12 have the same length, and the head ends and the tail ends of the transition conveyor belts are aligned in the direction perpendicular to the conveying direction. Of the first belt line 17 and the third belt line 19, the positioning mechanism 2 is provided on the first positioning belt 111; of the second belt line 18 and the fourth belt line 110, the positioning mechanism 2 is provided on the second positioning belt 111. Of course, the number of the belt lines 1 may be set to 1, 2 or other numbers as needed.

Furthermore, a fourth sensor 16 is disposed at the tail end of the front positioning belt 111 adjacent to the reference positioning belt 112, the fourth sensor 16 and the sensor disposed at the tail end of the reference positioning belt 112 are used for sensing the existence of the transmission member, and the fourth sensor 16 and the sensor at the tail end of the reference positioning belt 112 are respectively electrically connected to the controller. The controller is used for controlling the start and stop of the positioning belt 111 where the fourth sensor 16 is located according to the detection results of the fourth sensor 16 and the sensor arranged at the tail end of the reference positioning belt 112.

It should be noted that, for the positioning conveyor belt 11 with the reference positioning belt 112 as the last positioning belt 111 in the conveying direction, as shown in the second belt line 18 and the fourth belt line 110 in fig. 1, the inductor at the tail end of the reference positioning belt 112 may be the same inductor as the third inductor 15.

For the positioning conveyor belt 11 with the positioning belt 111 disposed at the front end of the positioning reference belt 112, specifically referring to the fourth belt line 110 in fig. 1, since a certain time is required for the material taking and placing operations on the positioning reference belt 112, it is preferable to ensure that only one transmission member is disposed on the positioning reference belt 112 at the same time, so as to avoid program confusion. Based on the fourth sensor 16 and the sensor at the tail end of the datum belt 112, it is ensured that only one transmission element is placed on the datum belt 112 at the same time.

Specifically, still taking the fourth belt line 110 as an example, the controller can determine whether the transmission member on the reference positioning belt 112 is away from the reference positioning belt 112 by combining the signal of the sensor at the tail end of the reference positioning belt 112. The controller determines whether the transmission member on the reference positioning belt 112 leaves when the fourth sensor 16 detects the transmission member, and if so, the positioning belt 111 on which the fourth sensor 16 is located continues to operate to transmit the transmission member to the reference positioning belt 112; otherwise, the controller controls the positioning belt 111 where the fourth sensor 16 is located to stop running, and after the controller determines that the transmission member on the reference positioning belt 112 has left the reference positioning belt 112, the controller controls the positioning belt 111 where the fourth sensor 16 is located to start running, and continues transmission of the transmission member.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The conveying belt provided by the utility model is described in detail above. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. The conveying belt is characterized by comprising a plurality of belt lines (1), wherein each belt line (1) comprises a positioning conveying belt (11), a positioning mechanism (2) is arranged on the side surface of each positioning conveying belt (11), each positioning mechanism (2) comprises a first inductor (23) and a telescopic device (21) which are sequentially arranged along the conveying direction, and the first inductors (23) and the telescopic devices (21) are respectively and electrically connected with a controller; the first sensor (23) is used for sensing whether the transmission piece exists or not, and the controller is used for controlling the extension of the telescopic device (21) according to the detection result of the first sensor (23) so as to block the operation of the transmission piece.

2. The conveyor belt according to claim 1, wherein the positioning mechanism (2) further comprises a clamping device (22) disposed on a side surface of the positioning conveyor belt (11), the first sensor (23), the clamping device (22) and the telescoping device (21) are sequentially disposed along the conveying direction, and the clamping device (22) is electrically connected to the controller; the controller is used for controlling the clamping device (22) to approach the transmission piece in a direction perpendicular to the transmission direction according to the detection result of the first sensor (23) so as to clamp the transmission piece.

3. The conveyor belt according to claim 2, wherein the positioning conveyor belt (11) is electrically connected to the controller, and the controller is configured to control a belt of the positioning conveyor belt (11) corresponding to the positioning mechanism (2) to stop operating according to a detection result of the first sensor (23).

4. The conveyor belt according to claim 1, wherein the telescopic device (21) comprises a stop pillar (211) disposed on both sides of the positioning conveyor belt (11), the stop pillar (211) is connected to a telescopic driving device (212) to drive the stop pillar (211) to extend and retract perpendicularly to the belt surface of the positioning conveyor belt (11), and the telescopic driving device (212) is electrically connected to the controller.

5. A conveyor belt according to claim 1, characterised in that the tail end of the belt line (1) is provided with an idler pulley (13).

6. The conveyor belt according to claim 1, characterized in that the starting end of the belt line (1) is provided with a second sensor (14), the second sensor (14) being electrically connected to the controller; the controller is used for controlling the belt line (1) to start to operate according to the detection result of the second sensor (14).

7. The conveyor belt according to any one of claims 1 to 6, wherein the belt line (1) further comprises a transition conveyor belt (12) butted to the tail end of the positioning conveyor belt (11), the tail end of the positioning conveyor belt (11) is provided with a third sensor (15), and the third sensor (15) and the transition conveyor belt (12) are respectively and electrically connected to the controller; the third sensor (15) is used for sensing whether a transmission piece exists or not, and the controller is used for controlling the rotating speed of the transition conveying belt (12) according to the detection result of the third sensor (15).

8. The conveyor belt according to claim 7, characterized in that the positioning conveyor belt (11) comprises at least two positioning belts (111) which are sequentially butted along the conveying direction, wherein one of the positioning belts (111) is a reference positioning belt (112) with a side surface provided with the positioning mechanism (2).

9. A conveyor belt according to claim 8, characterised in that at least two of the belt threads (1) are arranged one after the other in a direction perpendicular to the conveying direction, and the positioning means (2) on adjacent belt threads (1) are arranged offset in the conveying direction.

10. The conveyor belt according to claim 8, wherein a fourth sensor (16) is arranged at the tail end of the positioning belt (111) adjacent to the reference positioning belt (112), the fourth sensor (16) and the sensor arranged at the tail end of the reference positioning belt (112) are used for sensing the existence of the transmission member, and the fourth sensor (16) and the sensor at the tail end of the reference positioning belt (112) are respectively and electrically connected to the controller; the controller is used for controlling the starting and stopping of the positioning belt (111) where the fourth sensor (16) is located according to the detection results of the fourth sensor (16) and the sensor arranged at the tail end of the reference positioning belt (112).