A deviation correcting device for belt conveyor

Abstract

The present invention relates to the field of conveyor technology, and specifically to a deviation correction device for belt conveyors, which solves the problem that it is troublesome to correct the deviation of the conveyor belt. It includes a conveyor frame and multiple conveyor belts, the inner side walls of the two ends of the longer side of the conveyor frame are rotatably connected to a driving shaft, the outer side wall of the driving shaft is fixedly connected to a transport roller for driving the conveyor belt transmission, and multiple deviation correction mechanisms are provided between the two driving shafts. This solution sets a deviation correction mechanism on the transmission track of the conveyor belt, so that when the conveyor belt deviates at a certain point, the conveyor belt will push the correction plate at the corresponding position, and when the correction plate moves to the lower section, the internal thread and the external thread will come into contact, so that the driving block has the power to correct the deviation, and can push the position where the conveyor belt deviates to the initial setting direction, thereby playing a role in correcting the deviation.

Description

Technical Field

[0001] The invention relates to the technical field of conveyors, and in particular to a deviation correcting device for a belt conveyor. Background Art

[0002] Belt conveyors, also known as rubber belt conveyors, are widely used in various industries such as home appliances, electronics, electrical appliances, machinery, tobacco, injection molding, post and telecommunications, printing, food, etc. for the assembly, testing, debugging, packaging and transportation of objects.

[0003] When a belt conveyor is performing conveying operations, the conveyor belt on it often deviates during the conveying process due to the long conveying distance and the frequent impact caused by the material load. In severe cases, it will cause the belt conveyor to malfunction and shut down, cause damage to the main components of the belt conveyor, create safety hazards, and affect the quality of the conveyed materials.

[0004] However, the offset position of the conveyor belt is not fixed. According to this situation, it is necessary to set up a system that can monitor multiple positions of the conveyor belt. After the detection, it is also necessary to manually control it to reset the offset position. This method is more troublesome and labor-intensive.

[0005] Therefore, the present invention provides a deviation-correcting device for a belt conveyor to solve the above-mentioned problems. Summary of the invention

[0006] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a deviation correction device for a belt conveyor to solve the above-mentioned problem that it is troublesome to correct the deviation of the conveyor belt.

[0007] In order to achieve the above object, the technical solution adopted by the present invention is:

[0008] A deviation correction device for a belt conveyor, comprising a conveyor frame and a plurality of conveyor belts, wherein the inner side walls of both ends of a longer side of the conveyor frame are rotatably connected to a driving shaft, the outer side wall of the driving shaft is fixedly connected to a transport roller for driving the conveyor belt, and a plurality of deviation correction mechanisms are arranged between two of the driving shafts;

[0009] The deviation correction mechanism comprises a deviation correction shaft rotatably connected to the conveyor frame, a pushing group is arranged on the outer side of the deviation correction shaft, a straightening plate is connected to the pushing group, the straightening plate is used to reset the conveyor belt that has deviated, and the height of the straightening plate is consistent with the setting height of the conveyor belt;

[0010] Each conveyor belt is provided with a pushing group on two opposite sides, the pushing group includes a guide block and a driving block, a mounting rod is provided on one side of the deviation correction shaft, and the pushing group also includes a driving plate for controlling the movement or stopping of the driving block.

[0011] Preferably, the plurality of deflection correcting shafts are evenly distributed between the two driving shafts, and a transmission pulley is fixedly connected to the deflection correcting shaft and the driving shaft, and a transmission belt is arranged between the transmission pulleys on the two driving shafts, and the driving shaft drives the transmission pulleys on the plurality of deflection correcting shafts to rotate through the transmission belt;

[0012] The conveying frame is fixedly connected with a driving motor, the output end of the driving motor is connected to any end of any driving shaft, and the driving motor is used to drive the driving shaft to rotate.

[0013] Preferably, a guide shaft for guiding the guide block is fixedly connected directly below the deviation correction shaft, a sliding plate is fixedly connected to the bottom of the guide block, and the sliding plate is slidably connected to the guide shaft;

[0014] The opposite sides of the guide block and the driving block are both arranged in a semicircular arc manner and correspond to the size of the correction axis. The guide block and the driving block are connected by a plurality of first telescopic rods, and the first telescopic rods are used to guide the sliding direction of the driving block.

[0015] Preferably, an outer wall of the deviation-correcting shaft is provided with an external thread, and a side of the driving block opposite to the deviation-correcting shaft is provided with an internal thread, wherein the internal thread and the external thread are adapted to each other.

[0016] Preferably, a mounting rod is provided on one side of the deviation-correcting shaft, and the driving plate is fixedly connected to the mounting rod.

[0017] Preferably, a sensing groove is provided on a side of the driving plate opposite to the deviation correction shaft, and the sensing groove consists of a sensing section, a reset section, an upward moving section and a downward moving section, the inner side wall of the reset section close to the upper side is the upper top wall, and the inner side wall of the sensing section close to the lower side is the lower top wall;

[0018] A moving shaft is slidably connected in the sensing groove, and the moving shaft is fixedly connected to the driving block.

[0019] Preferably, the driving plate is fixedly connected to a first mounting plate and a second mounting plate, and the first mounting plate and the second mounting plate are both provided with a push rod body, one of the push rod bodies is located at the connection between the upward moving section and the reset section, and the other push rod body is located at the connection between the sensing section and the downward moving section;

[0020] The pushing rod body consists of a horizontal end, an energy storage end and a pushing end. The horizontal end and the energy storage end on the pushing rod body located above correspond to the position of the lower top wall, and the horizontal end and the energy storage end on the pushing rod body located below correspond to the position of the upper top wall.

[0021] Preferably, the first mounting plate and the second mounting plate are both fixedly connected with a second telescopic rod, the pushing rod body is connected to the first mounting plate via the second telescopic rod, and the outer side wall of the second telescopic rod is sleeved with a reset spring for resetting the pushing rod body.

[0022] Preferably, the alignment plate is fixedly connected to the top of the driving block, and a sensing groove is provided on the side of the alignment plate opposite to the conveyor belt. A drag reducing roller is provided in the sensing groove, and the rotation direction of the drag reducing roller is consistent with the transmission direction of the conveyor belt.

[0023] Preferably, a plurality of legs are provided at the bottom of the conveying frame, and the plurality of legs are arranged in a rectangular manner at the bottom of the conveying frame.

[0024] The beneficial effects of the present invention are:

[0025] 1. This solution sets a deviation correction mechanism on the transmission track of the conveyor belt. When the conveyor belt deviates at a certain place, the conveyor belt will push the correction plate at the corresponding position. When the correction plate moves to the downward section, the internal thread and the external thread will come into contact, so that the driving block has the power to correct the deviation, which can push the position where the conveyor belt deviates to the initial setting direction, thereby playing a role in correcting the deviation.

[0026] 2. By setting the drag-reducing roller, when the conveyor belt deviates and contacts the straightening plate, the friction between the conveyor belt and the straightening plate can be reduced, thereby increasing the service life of the conveyor belt and the deviation-correcting device.

[0027] 3. This solution uses the transmission pulley and transmission belt to start the deviation correction device when the conveyor belt is in the transmission process, without the need to control additional power transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the structure of the present invention.

[0029] Figure 2 It is a schematic diagram of the connection between the deviation correction shaft and the transmission pulley of the present invention.

[0030] Figure 3 It is a schematic diagram of the positions of the deviation correction shaft and the driving plate of the present invention.

[0031] Figure 4 It is a schematic diagram of the structure of the guide block and the drive block of the present invention.

[0032] Figure 5 It is a schematic diagram of the position of the moving axis of the present invention.

[0033] Figure 6 It is a schematic diagram of the structure of the sensing groove of the present invention.

[0034] Figure 7 It is a schematic structural diagram of the pushing rod body of the present invention.

[0035] Figure 8 It is a plan view of the driving plate of the present invention.

[0036] In the figure: 1, conveyor frame; 2, driving shaft; 3, conveyor belt; 4, driving motor; 5, outrigger; 6, deviation correction shaft; 7, straightening plate; 8, induction groove; 9, drag reduction roller; 10, driving plate; 11, mounting rod body; 12, guide block; 13, guide shaft; 14, sliding plate; 15, driving block; 16, first telescopic rod; 17, external thread; 18, internal thread; 19, first mounting plate; 20, second mounting plate; 21, moving shaft; 22, induction groove; 23, reset section; 24, downward section; 25, upward section; 26, second telescopic rod; 27, reset spring; 28, pushing rod body; 2801, horizontal end; 2802, energy storage end; 2803, pushing end; 29, induction section; 30, upper top wall; 31, lower top wall; 32, transmission pulley; 33, transmission belt; 34, transport roller. DETAILED DESCRIPTION

[0037] The following will refer to the attached Figures 1 to 8 The embodiments of the present invention are described in detail. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0038] A belt conveyor deviation correction device, as shown in the attached Figure 1 -Attached Figure 8 As shown, it includes a conveyor frame 1 and multiple conveyor belts 3. The inner side walls of both ends of the longer side of the conveyor frame 1 are rotatably connected to the driving shaft 2, the outer side wall of the driving shaft 2 is fixedly connected to a transport roller 34 for driving the conveyor belt 3, and multiple correction mechanisms are provided in the middle of the two driving shafts 2; a driving motor 4 is fixedly connected to the conveyor frame 1, and the output end of the driving motor 4 is connected to any end of any driving shaft 2, and the driving motor 4 is used to drive the driving shaft 2 to rotate.

[0039] When the conveyor belt 3 is required to perform a conveying operation, the driving motor 4 is controlled to make one of the driving shafts 2 rotate, and then the conveyor belt 3 is driven to perform a conveying operation through the transport roller 34 .

[0040] The correction mechanism includes a correction shaft 6 rotatably connected to the conveyor frame 1, and a pushing group is provided on the outer side of the correction shaft 6. A straightening plate 7 is connected to the pushing group. The straightening plate 7 is used to reset the conveyor belt 3 that has deviated. The height of the straightening plate 7 is consistent with the setting height of the conveyor belt 3. This arrangement is used to enable the conveyor belt 3 to offset against the straightening plate 7 when the conveyor belt 3 deviates, thereby preparing for subsequent resetting work.

[0041] The alignment plate 7 is fixedly connected to the top of the driving block 15. The side of the alignment plate 7 opposite to the conveyor belt 3 is provided with a sensing groove 8, and a drag reduction roller 9 is provided in the sensing groove 8. The rotation direction of the drag reduction roller 9 is consistent with the conveying direction of the conveyor belt 3. When a certain position of the conveyor belt 3 deviates, it will contact the drag reduction roller 9 on the alignment plate 7 at the corresponding position, and the drag reduction roller 9 can rotate, so as to reduce the friction between the conveyor belt 3 and the alignment plate 7 when the conveyor belt 3 contacts the two.

[0042] A plurality of legs 5 are provided at the bottom of the conveying frame 1 , and the plurality of legs 5 are arranged in a rectangular manner at the bottom of the conveying frame 1 . The legs 5 play a role in supporting the conveying frame 1 .

[0043] Multiple correcting shafts 6 are evenly distributed between the two driving shafts 2. A transmission pulley 32 is fixedly connected to the correcting shaft 6 and the driving shaft 2. A transmission belt 33 is provided between the transmission pulleys 32 on the two driving shafts 2. The driving shaft 2 drives the transmission pulleys 32 on the multiple correcting shafts 6 to rotate through the transmission belt 33.

[0044] When the driving shaft 2 rotates, the transmission pulley 32 and the transmission belt 33 can drive the multiple deviation correction shafts 6 to rotate along with the rotation of the driving shaft 2. It can be automatically opened as the transmission operation proceeds, and the deviation correction shaft 6 can also be stopped from rotating as the transmission operation is closed.

[0045] A guide shaft 13 for guiding the guide block 12 is fixedly connected directly below the deviation correction shaft 6, and a slide plate 14 is fixedly connected to the bottom of the guide block 12, and the slide plate 14 is slidably connected to the guide shaft 13. The guide shaft 13 and the deviation correction shaft 6 are parallel to each other.

[0046] The opposite sides of the guide block 12 and the driving block 15 are both arranged in a semicircular arc manner and correspond to the size of the deviation correction shaft 6. The guide block 12 and the driving block 15 are connected by a plurality of first telescopic rods 16, and the first telescopic rods 16 are used to guide the sliding direction of the driving block 15. An external thread 17 is provided on the outer wall of the deviation correction shaft 6, and an internal thread 18 is provided on the side of the driving block 15 opposite to the deviation correction shaft 6, wherein the internal thread 18 and the external thread 17 are adapted to each other.

[0047] The correcting shaft 6 rotates continuously with the rotation of the driving shaft 2. When the internal thread 18 on the driving block 15 contacts the external thread 17 on the correcting shaft 6, the driving block 15 will be driven to move along the direction of the correcting shaft 6 under the action of the thread. The setting direction of the correcting shaft 6 is perpendicular to the conveying direction of the conveyor belt 3.

[0048] Embodiment 2

[0049] A mounting rod 11 is provided on one side of the deflection correction shaft 6, and a driving plate 10 is fixedly connected to the mounting rod 11. A push group is provided on opposite sides of each conveyor belt 3, and the push group includes a guide block 12 and a driving block 15. A mounting rod 11 is provided on one side of the deflection correction shaft 6, and the push group also includes a driving plate 10, and the driving plate 10 is used to control the movement or stop of the driving block 15.

[0050] See attached Figure 8 A sensing groove 22 is provided on the side of the driving plate 10 opposite to the deviation correction shaft 6. The sensing groove 22 is composed of a sensing section 29, a reset section 23, an upward moving section 25 and a downward moving section 24. The inner side wall of the reset section 23 near the top is an upper top wall 30, and the inner side wall of the sensing section 29 near the bottom is a lower top wall 31;

[0051] The sensing groove 22 is slidably connected with a moving shaft 21, and the moving shaft 21 is fixedly connected to the driving block 15. The moving shaft 21 can contact the pushing rod 28 during the movement. Thus, the reset spring 27 is compressed by contacting the pushing rod 28, so that the reset spring 27 can push the moving shaft 21 when the reset spring 27 is reset.

[0052] The driving plate 10 is fixedly connected with a first mounting plate 19 and a second mounting plate 20. The first mounting plate 19 and the second mounting plate 20 are both provided with a push rod 28. One push rod 28 is located at the connection between the upward moving section 25 and the reset section 23, and the other push rod 28 is located at the connection between the sensing section 29 and the downward moving section 24.

[0053] See attached Figure 7 The push rod body 28 is composed of a horizontal end 2801, an energy storage end 2802 and a push end 2803. The horizontal end 2801 and the energy storage end 2802 on the push rod body 28 located at the top correspond to the position of the lower top wall 31, and the horizontal end 2801 and the energy storage end 2802 on the push rod body 28 located at the bottom correspond to the position of the upper top wall 30. When the moving shaft 21 moves, it will first contact with the horizontal end 2801 to prevent the moving shaft 21 and the energy storage end 2802 from not contacting each other during the movement.

[0054] The first mounting plate 19 and the second mounting plate 20 are both fixedly connected with a second telescopic rod 26 . The push rod body 28 is connected to the first mounting plate 19 via the second telescopic rod 26 . The outer side wall of the second telescopic rod 26 is sleeved with a reset spring 27 for resetting the push rod body 28 .

[0055] The initial position of the movable shaft 21 is located in the sensing section 29. When the conveyor belt 3 is offset, the conveyor belt 3 will contact the drag reduction roller 9 on the alignment plate 7, thereby pushing the alignment plate 7 to move along the sensing section 29 toward the downward section 24. During the movement of the movable shaft 21 to the downward section 24, it will contact the upper push rod 28.

[0056] And the return spring 27 is compressed through the energy storage end 2802, and the moving shaft 21 is now against the lower top wall 31, and the moving shaft 27 has the potential energy to move downward through the return spring 27, and when the moving shaft 21 moves to the position of the pushing end 2803, the moving shaft 21 is also in the downward moving section 24 at the same time. At this time, the lower top wall 31 no longer limits the moving shaft 21, and the moving shaft 21 is moved to the return section 23 along the guide of the downward moving section 24 through the action of the return spring 27.

[0057] The driving block 15 will move as the moving shaft 21 moves downward, and when the moving shaft 21 is in the reset section 23, the internal thread 18 on the driving block 15 will contact the external thread 17 on the deviation correction shaft 6, and the deviation correction shaft 6 is always rotating, and the external thread 17 on the surface of the deviation correction shaft 6 will push the driving block 15 to move to the initial position of the conveyor belt 3. It should be noted that the height of the straightening plate 7 corresponds to the height of the conveyor belt 3 throughout the whole process, so that the straightening plate 7 can push the conveyor belt 3 as the driving block 15 moves.

[0058] When the driving block 15 and the moving shaft 21 move along the reset section 23, the moving shaft 21 will contact the pushing rod 28 below. Similarly to the above, the moving shaft 21 will compress the reset spring 27 through the energy storage end 2802. At this time, the moving shaft 21 will tend to move upward, and the moving shaft 21 will be tightly attached to the upper top wall 30. When the moving shaft 21 moves to the bottom end of the upper moving section 25, the reset spring 27 will move the moving shaft 21 to the top of the upper moving section 25, thereby allowing the moving shaft 21 to enter the initial sensing section 29.

[0059] When the moving shaft 21 enters the sensing section 29, the internal thread 18 will disengage from the external thread 17. At this time, the deviation correction shaft 6 no longer has a driving force on the driving block 15, and the position of the upward moving section 25 also corresponds to the initial position of the conveyor belt 3, thereby pushing the offset conveyor belt 3 to its initial position.

[0060] In the above process, the driving block 15 moves with the movement of the moving shaft 21, and the driving block 15 drives the correction plate 7 to push the deviated conveyor belt 3, so that the conveyor belt 3 at the deviated position can be reset. In addition, by providing multiple conveyor belts 3, the resistance encountered by the correction device during the correction process is not too large, thereby ensuring the normal correction process.

[0061] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0062] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A belt conveyor deviation correction device, comprising a conveyor frame (1) and a plurality of conveyor belts (3), characterized in that: The inner side walls at both ends of the longer side of the conveying frame (1) are rotatably connected to a driving shaft (2), the outer side walls of the driving shaft (2) are fixedly connected to a transport roller (34) for driving the conveyor belt (3), and a plurality of deviation correction mechanisms are provided between the two driving shafts (2); The deviation correction mechanism comprises a deviation correction shaft (6) rotatably connected to the conveying frame (1), a pushing group is arranged on the outer side of the deviation correction shaft (6), a straightening plate (7) is connected to the pushing group, the straightening plate (7) is used to reset the conveying belt (3) that has deviated, and the height of the straightening plate (7) is consistent with the setting height of the conveying belt (3); Each conveyor belt (3) is provided with a push group on two opposite sides, the push group comprising a guide block (12) and a drive block (15), one side of the deviation correction shaft (6) is provided with a mounting rod body (11), the push group also comprises a drive plate (10), and the drive plate (10) is used to control the movement or stop of the drive block (15); The plurality of deflection correction shafts (6) are evenly distributed between the two drive shafts (2); a transmission pulley (32) is fixedly connected to the deflection correction shaft (6) and the drive shaft (2); a transmission belt (33) is provided between the transmission pulleys (32) on the two drive shafts (2); and the drive shaft (2) drives the transmission pulleys (32) on the plurality of deflection correction shafts (6) to rotate via the transmission belt (33); The conveying frame (1) is fixedly connected to a driving motor (4), the output end of the driving motor (4) is connected to any end of any driving shaft (2), and the driving motor (4) is used to drive the driving shaft (2) to rotate; A guide shaft (13) for guiding the guide block (12) is fixedly connected directly below the deviation correction shaft (6); a sliding plate (14) is fixedly connected to the bottom of the guide block (12); and the sliding plate (14) is slidably connected to the guide shaft (13); The opposite sides of the guide block (12) and the driving block (15) are both arranged in a semicircular arc manner and correspond to the size of the deviation correction shaft (6); the guide block (12) and the driving block (15) are connected via a plurality of first telescopic rods (16), and the first telescopic rods (16) are used to guide the sliding direction of the driving block (15); A sensing groove (22) is provided on a side of the driving plate (10) opposite to the deviation correction shaft (6), the sensing groove (22) being composed of a sensing section (29), a reset section (23), an upward movement section (25) and a downward movement section (24), the inner side wall of the reset section (23) close to the upper side being an upper top wall (30), and the inner side wall of the sensing section (29) close to the lower side being a lower top wall (31); A moving shaft (21) is slidably connected in the sensing groove (22), and the moving shaft (21) is fixedly connected to the driving block (15); The driving plate (10) is fixedly connected to a first mounting plate (19) and a second mounting plate (20), and the first mounting plate (19) and the second mounting plate (20) are both provided with a pushing rod body (28), one pushing rod body (28) is located at a connection point between the upward moving section (25) and the reset section (23), and the other pushing rod body (28) is located at a connection point between the sensing section (29) and the downward moving section (24); The pushing rod body (28) is composed of a horizontal end (2801), an energy storage end (2802) and a pushing end (2803); the horizontal end (2801) and the energy storage end (2802) on the pushing rod body (28) located at the top correspond to the positions of the lower top wall (31); the horizontal end (2801) and the energy storage end (2802) on the pushing rod body (28) located at the bottom correspond to the positions of the upper top wall (30).

2. A belt conveyor deviation correction device according to claim 1, characterized in that: An external thread (17) is provided on the outer wall of the deviation correction shaft (6), and an internal thread (18) is provided on the side of the driving block (15) opposite to the deviation correction shaft (6), wherein the internal thread (18) and the external thread (17) are adapted to each other.

3. A belt conveyor deviation correction device according to claim 1, characterized in that: A mounting rod (11) is provided on one side of the deviation-correcting shaft (6), and the driving plate (10) is fixedly connected to the mounting rod (11).

4. A belt conveyor deviation correction device according to claim 1, characterized in that: The first mounting plate (19) and the second mounting plate (20) are both fixedly connected with a second telescopic rod (26); the pushing rod body (28) is connected to the first mounting plate (19) via the second telescopic rod (26); and an outer wall of the second telescopic rod (26) is sleeved with a reset spring (27) for resetting the pushing rod body (28).

5. The belt conveyor deviation correction device according to claim 1, characterized in that: The alignment plate (7) is fixedly connected to the top of the driving block (15); a sensing groove (8) is provided on the side of the alignment plate (7) opposite to the conveyor belt (3); a drag reduction roller (9) is provided in the sensing groove (8); and the rotation direction of the drag reduction roller (9) is consistent with the transmission direction of the conveyor belt (3).

6. A belt conveyor deviation correction device according to claim 1, characterized in that: A plurality of legs (5) are provided at the bottom of the conveying frame (1), and the plurality of legs (5) are arranged in a rectangular manner at the bottom of the conveying frame (1).

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