Logistics article conveying and correcting device and conveying and correcting method thereof

Abstract

The invention discloses a logistics article conveying and correcting device and a conveying and correcting method thereof. The conveying and correcting device comprises a conveyor belt, side battens, a transmission shaft, a gear, a rack block, a reference marker, an article state snapshot camera and a two-way air cylinder. According to the device, the action requirement that the two side battens used for clamping objects move and controllably rotate at the same time can be configured through a small number of driving power sources, and the consistency of action coordination execution is improved; the state angles of the two side battens can be adjusted to be consistent with the state angle of an object located on a conveyor belt, and the situation that the object is damaged due to clamping deviation in the clamping action is avoided; the three gears which are sequentially welded together are pushed downwards or pulled upwards at the same time through the push-pull assembly, the three gears with different diameters and the same tooth pitch can be connected with the rack block in a switching mode in a meshed mode, and the effect of adjusting and changing the rotating speed of the transmission shaft is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of logistics warehousing conveying equipment, in particular to a logistics article conveying and correcting device and a conveying and correcting method thereof. BACKGROUND

[0002] Large logistics articles are difficult to be manually adjusted and corrected on the conveyor during the conveying and transferring process due to their large size and heavy weight. Placing non-standard large logistics articles is not conducive to subsequent label identification and other processing and sorting. The existing conveying and correcting device mainly pushes articles to the middle area of the conveying belt to correct their positions, which has a single action form and cannot accurately correct logistics articles placed at a large angle. However, too many independent driving power devices are arranged in each adjustment direction, which not only increases the overall structural weight but also is not conducive to improving the accuracy of the coordinated actions. Therefore, the present application provides a logistics article conveying and correcting device and a conveying and correcting method thereof to solve the above problems. SUMMARY

[0003] The present application aims to provide a logistics article conveying and correcting device and a conveying and correcting method thereof to solve the above problems.

[0004] The present application achieves the above-mentioned purpose through the following technical solutions. A logistics article conveying and correcting device includes a conveyor belt, side slats, a transmission shaft, gears, a rack block, reference markers, an article state snapshot camera, and a double-acting cylinder. Two side slats are connected by a double-acting cylinder at their top ends and are symmetrically arranged above the strip plate. The transmission shaft is connected between the two ends of the double-acting cylinder at the middle position of the top. The transmission shaft has a toothed surface section. Three gears with different diameters are welded together, and one of the gears is connected with the rack block. The toothed wall hole in the middle of each gear is connected with the same toothed surface section. The top gear is connected with a push-pull assembly. The transmission shaft is rotatably installed on an L-shaped traction seat. The conveyor belt is fixedly provided with reference markers on one side of the edge. The article state snapshot camera captures the angle between the reference markers and the side surface of the article.

[0005] In a further technical solution, the strip plate is in rolling contact with the same conveyor belt at both ends, and the top ends of the rolling contact elements on the bottom of the articles distributed above the strip plate are in the same plane as the surface of the conveyor belt.

[0006] Further technical solutions, the article state snapshot camera is connected with the image processing control module through signal transmission line, and the image processing control module is also connected with the servo linear movement module, the angle sensor and the electromagnetic clutch, the angle sensor and the electromagnetic clutch are fixedly installed on the upper and lower surfaces of the L-shaped traction seat, and the action parts of the angle sensor and the electromagnetic clutch are connected on the same transmission shaft.

[0007] Further technical solutions, the gear pitch between the gears is the same, the diameters of the three gears located in the middle, the upper end and the lower end are successively reduced.

[0008] Further technical solutions, the push-pull assembly is composed of a first cylinder, an L-shaped plate and a bearing, the bearing is assembled in the middle of the side of the upper end gear, and the outer ring parts of the bearing are respectively welded and fixed with the two L-shaped plates at one end, the first cylinder is installed at the top end of the two L-shaped plates, and the cylinder body end of the first cylinder is fixedly installed on the L-shaped traction seat.

[0009] Further technical solutions, the second cylinder is installed at the two ends of the rack block, and the cylinder bodies of the two second cylinders are respectively fixedly installed on the sides of the two carrier plates, and the top ends of the two carrier plates are respectively installed at the bottom of the servo linear movement module.

[0010] Further technical solutions, the initial spacing between the side strip plates is greater than the width size of the output machine conveying belt, and the action part of the side strip plate is a sponge structure.

[0011] A conveying and correcting method of a logistics article conveying and correcting device, the specific steps are as follows: Step one, when the article body is moved to the article state snapshot camera directly below by the conveyor belt, the article state snapshot camera implements snapshot on the included angle state between the reference marker and the side surface of the article body, transmits the snapshot image to the image processing control module to obtain the included angle size, and generates an instruction signal to control the operation of the servo linear movement module and the electromagnetic clutch; Step two, the servo linear movement module starts to run according to the instruction, so that the L-shaped traction seat moves to the left, and then drives the transmission shaft, the gear, the two-way cylinder and the two side strip plates connected with the L-shaped traction seat to move to the left synchronously, since one of the gears is meshed and connected with the rack block, and the tooth surface segment on the transmission shaft is meshed and connected with the tooth wall hole, the transmission shaft can also be in a rotating state during moving to the left, and the two side strip plates connected by the two-way cylinder are also driven to rotate; Among them, the push-pull assembly can mesh and connect the three gears with different diameters and the same gear pitch with the rack block in a switching mode by simultaneously pushing or pulling the three gears welded together, so as to adjust and change the rotating speed of the transmission shaft; Step three, when the angle sensor connected to the transmission shaft detects that the position angle of the two side plates is consistent with the state angle obtained by the image processing control module, the servo linear motion module stops running, the electromagnetic clutch binds the transmission shaft to prevent random rotation, which can ensure the invariability of the position angle of the two side plates when the object body enters the clamping state; Step four, the object body is conveyed by the conveyor belt and the several object bottom rolling contact elements on the strip plate enter between the two side plates, the bidirectional cylinder runs in the contraction state, so that the two side plates move oppositely and clamp the object body; Step five, after clamping the object body, the servo linear motion module drives the connected L-shaped traction seat to move to the right, the electromagnetic clutch releases the binding of the transmission shaft, so that the two side plates connected thereto rotate reversely to the initial debugging state, so that the object body can be centered on the conveyor belt; Step six, after the angle sensor detects the reset angle of the transmission shaft again, the electromagnetic clutch binds the transmission shaft again, and the rack block is separated from the gear under the contraction state of the second cylinder, and the clamped and adjusted object body is moved to the conveyor belt at the right end of the strip plate by the right movement of the servo linear motion module; Step seven, release the clamping of the object body, and the servo linear motion module reverses to reset the side plate to the same position angle state as the next object body.

[0012] The beneficial effects of the present application are: The action requirement of moving and controllably rotating the two side plates for clamping the object can be met with a small number of driving power sources, improving the consistency of the execution action coordination.

[0013] The state angle between the reference marker and the side surface of the object body is captured by the object state snapshot camera, and the captured image is transmitted to the image processing control module to obtain the state angle, and the servo linear motion module and the electromagnetic clutch are controlled by the generated instruction signal, which is beneficial to adjusting the state angle of the two side plates to be consistent with the state angle of the object on the conveyor belt, avoiding the damage of the object caused by the clamping action.

[0014] The three gears welded together are pushed down or pulled up by the push-pull assembly, which can engage the three gears with different diameters and the same pitch with the rack block in a switching manner, achieving the effect of adjusting the rotation speed of the transmission shaft.

[0015] The top of the several article bottom rolling contact pieces is located on the plane which is flush with the surface of the conveyor belt, which can ensure the movement of the article body under the traction of the two side strip plates, and greatly reduce the friction between the article body bottom and the structure surface under the rotation correction action. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and all other drawings obtained by those of ordinary skill in the art without creative labor based on these drawings also belong to the protection scope of the present application.

[0017] The present application will be further described below in combination with the drawings and embodiments.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present application. Figure 2 It is a schematic diagram of the connection structure of the transmission shaft, gear and L-shaped traction seat of the present application. Figure 3 It is a top view of the gear structure of the present application. Figure 4 It is a schematic diagram of the bidirectional air cylinder connection structure of the present application. Figure 5 It is a schematic diagram of the rack block connection structure of the present application.

[0019] In the figure: 1, conveyor belt; 2, strip plate; 3, article bottom rolling contact piece; 4, side strip plate; 5, transmission shaft; 510, tooth surface section; 6, gear; 610, tooth wall hole; 7, rack block; 8, push-pull assembly; 9, angle sensor; 10, servo linear movement module; 10a, L-shaped traction seat; 11, carrier plate; 12, reference marker; 13, article state snapshot camera; 14, image processing control module; 15, article body; 16, electromagnetic clutch; 17, bidirectional air cylinder; 18, second air cylinder. DETAILED DESCRIPTION

[0020] In order to make the purpose, features and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the following described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor also belong to the protection scope of the present application.

[0021] The technical solutions of the present application will be further described below in combination with the drawings and specific embodiments.

[0022] In the description of the present application, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0023] Please refer to Figures 1-5 As shown in the figure, a logistics article conveying and correcting device, comprising a conveyor belt 1, side slats 4, a transmission shaft 5, gears 6, a rack block 7, a reference marker 12, an article state snapshot camera 13 and a bidirectional cylinder 17, two said side slats 4 are connected to each other by a bidirectional cylinder 17 at the top ends, and two said side slats 4 are symmetrically arranged above the strip plate 2, the middle part of the transmission shaft 5 connected to the top of the bidirectional cylinder 17 is set as a toothed surface section 510, three said gears 6 of different diameters are welded together, and one of said gears 6 is engaged with said rack block 7, the toothed wall hole 610 in the middle of each said gear 6 is engaged with the same said toothed surface section 510, the top of one said gear 6 at the top end is connected with a push-pull assembly 8, the gear pitch between said gears 6 is the same, the diameters of three said gears 6 located in the middle, upper end and lower end decrease in turn, the top end of said transmission shaft 5 is rotatably installed on an L-shaped traction seat 10a, the edge of one side of said conveyor belt 1 is fixedly provided with a reference marker 12, and said article state snapshot camera 13 implements snapshot of the included angle state between the reference marker 12 and one side of the article body 15.

[0024] Please refer to Figure 1 As shown in the figure, both ends of said strip plate 2 are in rolling contact with the same said conveyor belt 1, and the top ends of the several article bottom rolling contact members 3 distributed above the strip plate 2 are located on the same plane as the surface of said conveyor belt 1, which can not only ensure the movement of the article body 15 under the movement and traction of the clamped two side slats 4, but also greatly reduce the friction degree of the bottom of the article body 15 in contact with the structure surface under the rotating and correcting action.

[0025] Please refer to Figure 1 and Figure 2As shown, the article state snapshot camera 13 is electrically connected with the image processing control module 14 through a signal transmission line, and the image processing control module 14 is also electrically connected with the servo linear moving module 10, the angle sensor 9 and the electromagnetic clutch 16, the angle sensor 9 and the electromagnetic clutch 16 are fixedly installed on the upper and lower surfaces of the L-shaped traction seat 10a respectively, and the acting parts of the angle sensor 9 and the electromagnetic clutch 16 are connected on the same transmission shaft 5, which plays the roles of article state angle detection, processing control and control operation of each executing part.

[0026] Referring to Figure 2 As shown, the push-pull assembly 8 is composed of a first cylinder, an L-shaped plate and a bearing, the bearing is assembled at the middle of one side of the upper end gear 6, and the outer ring parts of the bearing are respectively welded and fixed with one end of two L-shaped plates, the top ends of the two L-shaped plates are respectively installed with the first cylinder, and the cylinder end part of the first cylinder is fixedly installed on the L-shaped traction seat 10a.

[0027] Referring to Figure 5 As shown, the rack block 7 is installed with a second cylinder 18 at each end, and the cylinder end of each of the two second cylinders 18 is fixedly installed on one side of the two carrier plates 11, and the top ends of the two carrier plates 11 are respectively installed on the bottom of the servo linear moving module 10.

[0028] Further, the initial spacing between the side strip plates 4 is greater than the width dimension of the output machine conveying belt, and the acting part of the side strip plate 4 is a sponge structure.

[0029] A conveying and correcting method of a logistics article conveying and correcting device, and the specific steps are as follows: Step one, when the article body 15 is moved to the article state snapshot camera 13 by the conveyor belt 1, the article state snapshot camera 13 implements snapshot on the included angle state between the reference marker 12 and the side surface of the article body 15, transmits the snapshot image to the image processing control module 14 to obtain the included angle size, and generates an instruction signal to control the operation of the servo linear moving module 10 and the electromagnetic clutch 16; Step two, the servo linear moving module 10 starts to operate according to the instruction, so that the L-shaped traction seat 10a moves to the left, and then drives the transmission shaft 5, the gear 6, the two-way cylinder 17 and the two side strip plates 4 connected with the L-shaped traction seat 10a to move to the left synchronously, since one of the gears 6 is engaged with the rack block 7, and the tooth surface segment 510 on the transmission shaft 5 is engaged with the tooth wall hole 610, the transmission shaft 5 can also rotate in the process of moving to the left, and the two side strip plates 4 connected through the two-way cylinder 17 are also rotated; The push-pull assembly 8 can engage the three gears 6 with different diameters and the same pitch with the rack block 7 in a switching manner by simultaneously pushing or pulling downward by welding the three gears 6 together, so as to adjust the rotating speed of the transmission shaft 5. Step three, when the angle sensor 9 connected to the transmission shaft 5 detects that the position angle of the two side plates 4 is consistent with the state angle of the image processing control module 14, the servo linear motion module 10 stops running, the electromagnetic clutch 16 fixes the transmission shaft 5 to prevent random rotation, which can ensure that the position angle of the two side plates 4 is consistent, and the object body 15 is in a clamping state; Step four, the object body 15 enters between the two side plates 4 through the conveyor belt 1 and the several object bottom rolling contact elements 3 on the strip plate 2, and the two-way cylinder 17 is in a contraction state, so that the two side plates 4 move towards each other, and the object body 15 is clamped; Step five, after the object body 15 is clamped, the servo linear motion module 10 drives the connected L-shaped traction seat 10a to move to the right, the electromagnetic clutch 16 releases the fixation of the transmission shaft 5, so that the two side plates 4 connected thereto rotate in the opposite direction to the initial debugging state, so that the object body 15 is centered on the conveyor belt 1; Step six, after the angle sensor 9 detects the reset angle of the transmission shaft 5, the electromagnetic clutch 16 fixes the transmission shaft 5 again, and the rack block 7 is separated from the gear 6 under the contraction state of the second cylinder 18. The clamped and adjusted object body 15 is moved to the right by the servo linear motion module 10 and is moved to the conveyor belt 1 at the right end of the strip plate 2; Step seven, the clamping of the object body 15 is released, and the servo linear motion module 10 reverses to reset the side plates 4 to the same position angle as the next object body 15.

[0030] Advantages include: 1. A small number of driving power sources can be used to move and control the two side plates 4 for clamping objects, improving the consistency of the execution action; 2. The state angle between the reference marker 12 and the side surface of the object body 15 is captured by the object state snapshot camera 13, and the captured image is transmitted to the image processing control module 14 to obtain the state angle, and the servo linear motion module 10 and the electromagnetic clutch 16 are controlled by the generated instruction signal, which is beneficial to the adjustment of the state angle of the two side plates 4 and the state angle of the object on the conveyor belt 1, and avoids the damage of the clamping action. 3. The three gears 6 welded together in turn are pushed down or pulled up simultaneously by the push-pull assembly 8, so that the three gears 6 with different diameters and same pitch are engaged with the rack block 7 in a switching mode, achieving the effect of adjusting the rotating speed of the transmission shaft 5; 4. The top end of the several article bottom rolling contact elements 3 is flush with the surface of the conveyor belt 1, which can ensure the movement of the article body 15 under the traction of the two side strip plates 4, and greatly reduce the friction between the bottom of the article body 15 and the surface of the structure under the rotating correction action It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as illustrative and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended to encompass all changes falling within the meaning and range of equivalents of the essential elements of the claims. Any reference signs in the claims should not be considered as limiting the claims involved.

[0031] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for some technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A logistics item conveying and straightening device, characterized by: The invention comprises a conveyor belt (1), a side strip plate (4), a transmission shaft (5), a gear (6), a rack block (7), a reference marker (12), an item status capture camera (13) and a bidirectional cylinder (17), wherein the top ends of the two side strip plates (4) are connected to each other through the bidirectional cylinder (17), and the two side strip plates (4) are symmetrically arranged in the area above the strip plate (2), and the portion between the two ends of the transmission shaft (5) connected to the middle position of the top of the bidirectional cylinder (17) is set as a tooth surface segment (510), and the three gears (6) of different diameters are welded together, and one of them is connected to the transmission shaft (5) at the top of the bidirectional cylinder (17). The gears (6) are meshed with the rack blocks (7), the tooth wall holes (610) located in the middle of each gear (6) are meshed with the same tooth surface segment (510), the top of one of the gears (6) located at the top is connected to the push-pull assembly (8), the top of the transmission shaft (5) is rotatably mounted on the L-shaped traction seat (10a), a reference marker (12) is fixedly provided on one side of the edge of the conveyor belt (1), and the object status capture camera (13) captures the angle formed between the reference marker (12) and the side surface of one side of the object body (15).

2. A logistics article conveying and straightening device according to claim 1, characterized in that: Both ends of the strip plate (2) are in rolling contact with the same conveyor belt (1), and the plane where the top ends of a plurality of rolling contact members (3) at the bottom of the items distributed above the strip plate (2) are located is flush with the surface of the conveyor belt (1).

3. The logistics article conveying and straightening device according to claim 1, characterized in that: The object status capture camera (13) is electrically connected to the image processing control module (14) via a signal transmission line, and the image processing control module (14) is also electrically connected to the servo linear motion module (10), the angle sensor (9) and the electromagnetic clutch (16), the angle sensor (9) and the electromagnetic clutch (16) are respectively fixedly mounted on the upper and lower surfaces of the L-shaped traction seat (10a), and the active part of the angle sensor (9) and the active part of the electromagnetic clutch (16) are both connected to the same transmission shaft (5).

4. The logistics article conveying and straightening device according to claim 1, characterized in that: The tooth pitches between the gears (6) are the same, and the diameters of the three gears (6) located at the middle, upper and lower ends decrease in sequence.

5. The logistics article conveying and straightening device according to claim 1, characterized in that: The push-pull assembly (8) is composed of a first cylinder, an L-shaped plate and a bearing. The bearing is assembled in the middle of one side of the upper gear (6), and the outer ring of the bearing is welded and fixed to one end of each of the two L-shaped plates. The top ends of the two L-shaped plates are both equipped with the first cylinder, and the cylinder end of the first cylinder is fixedly mounted on the L-shaped traction seat (10a).

6. The logistics article conveying and straightening device according to claim 1, characterized in that: The rack block (7) is provided with a second cylinder (18) at both ends, and the cylinder ends of the two second cylinders (18) are fixedly mounted on one side of the two carrier plates (11), and the top ends of the two carrier plates (11) are respectively mounted on the bottom of the servo linear motion module (10).

7. The logistics article conveying and straightening device according to claim 1, characterized in that: The initial spacing between the side strips (4) is greater than the width of the conveyor belt of the output machine, and the action part of the side strips (4) is a sponge structure.

8. A method for rectifying the transport of a logistics article conveying device according to any one of claims 1 to 7, characterized in that: The specific steps of the transport correction method are as follows: Step 1: When the object body (15) is moved by the conveyor belt (1) to the position directly below the object status capture camera (13), the object status capture camera (13) captures the angle state formed between the reference marker (12) and the side surface of the object body (15), and transmits the captured image to the image processing control module (14) to obtain the angle of the state angle, and at the same time generates a command signal to implement operation control of the servo linear motion module (10) and the electromagnetic clutch (16); Step 2: The servo linear motion module (10) receives the instruction and starts to operate, causing the L-shaped traction seat (10a) to move to the left, thereby driving the transmission shaft (5), gear (6), bidirectional cylinder (17), and two side strips (4) connected to the L-shaped traction seat (10a) to move to the left synchronously. Since one of the gears (6) is meshed with the rack block (7), and the tooth surface section (510) on the transmission shaft (5) is meshed with the tooth wall hole (610), the transmission shaft (5) can be driven to rotate during the leftward movement, and the two side strips (4) connected via the bidirectional cylinder (17) can also be driven to rotate. The push-pull assembly (8) can simultaneously push downward or pull upward the three gears (6) welded together in sequence, thereby enabling the three gears (6) of different diameters and the same tooth pitch to be meshed and connected with the rack block (7) in a switching manner, thereby achieving the effect of adjusting and changing the rotation speed of the transmission shaft (5); Step 3: When the angle sensor (9) connected to the transmission shaft (5) detects that the position angle of the two side strips (4) is consistent with the state angle obtained by the image processing control module (14), the servo linear motion module (10) stops running, and the electromagnetic clutch (16) restrains the transmission shaft (5) to prevent it from rotating at will, thereby ensuring that the position angle of the two side strips (4) remains unchanged at this time, and the object body (15) is in a state ready to enter the clamping state; Step 4: The object body (15) passes through the conveyor belt (1) and the plurality of bottom rolling contact members (3) of the object located on the strip plate (2) and enters between the two side strip plates (4). The bidirectional cylinder (17) operates in a contracted state, so that the two side strip plates (4) move toward each other, thereby clamping the object body (15); Step 5: After the object body (15) is clamped, the servo linear motion module (10) drives the connected L-shaped traction seat (10a) to move to the right, and the electromagnetic clutch (16) releases the restraint and fixation on the transmission shaft (5), so that the two connected side strips (4) rotate in the opposite direction to the initial debugging state, thereby being able to center the object body (15) on the conveyor belt (1); Step 6: After the angle sensor (9) detects the reset angle of the transmission shaft (5) again, the electromagnetic clutch (16) operates again to constrain and fix the transmission shaft (5), and at the same time, the rack block (7) is separated from the gear (6) in the contracted state of the second cylinder (18), and the clamped and adjusted object body (15) continues to be pulled to the right by the servo linear motion module (10) and moved to the conveyor belt (1) located at the right end of the strip plate (2); Step 7: Release the clamping of the object body (15), and the servo linear motion module (10) runs in the reverse direction to reset the side strip (4) to the same position and angle as the next object body (15).

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