Automatic deviation rectifying machine for feeding belt

Abstract

The utility model discloses an automatic deviation rectifying machine for a feeding belt, which belongs to the related technical field of belt conveyor application and comprises a rack arranged on one side of a belt conveyor, a deviation rectifying detection device and a deviation rectifying device. The driven roller, the deviation rectifying device and the deviation rectifying detection device are supported by the rack, and the deviation rectifying device and the deviation rectifying detection device are arranged on the two sides of the belt conveyor respectively. Wherein the deviation correction detection device comprises a detection roller, a rotating shaft is arranged at the upper end of the detection roller, and the rotating shaft is inserted into a bearing seat; a coupler and a rotary encoder are arranged at the side end of the rotating shaft, and a limiting switch is arranged at the side end of the rotary encoder. The automatic deviation rectifying machine for the feeding belt has a high degree of automation, can normally realize unattended stable operation for more than half a year, and can automatically and autonomously operate according to the front-end blanking condition. The operation mode is extremely simple and convenient, and automatic operation can be realized only by rotating the mode knob to an automatic mode; and during emergency processing or debugging, a manual operation mode can be easily switched.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the related technical field of belt conveyor, specifically is a kind of automatic deviation rectification machine of feeding belt. BACKGROUND

[0002] In the field of material conveying, the belt conveyor is widely used as a kind of equipment, and its running stability is crucial to production efficiency and equipment life. However, the existing belt conveyor often faces the problem of belt deviation during operation, which not only causes material to fall off and equipment to wear out, but also may cause safety accidents, seriously affecting production efficiency and normal operation of equipment.

[0003] Currently, there are many shortcomings in the measurement of belt deviation. On the one hand, some devices use limit switches for measurement, which can only trigger signals when the belt deviation reaches the limit position, and cannot provide real-time feedback on the specific position of the belt deviation, resulting in delayed correction control and difficulty in achieving accurate correction. On the other hand, although laser measurement has high accuracy, the laser signal is easily disturbed due to severe dust in the belt conveying site, making it difficult to work stably and unable to meet the actual working condition requirements.

[0004] In addition, the function of ordinary belt deviation rectifier is relatively single, and it can only correct the deviation of the belt. However, in actual operation, the change of belt tension also has an important impact on the service life and running stability of the belt. The ordinary deviation rectifier cannot adjust the deviation force according to the belt tension, and cannot fully guarantee the running state of the belt, limiting its application effect in complex working conditions.

[0005] To solve the above technical problems, an automatic deviation rectification machine for feeding belt is proposed. INVENTION CONTENTS

[0006] To solve the above technical problems, the utility model provides an automatic deviation rectification machine for feeding belt to solve the technical problems in the background art.

[0007] To achieve the above purpose, the utility model adopts the technical scheme of:

[0008] An automatic deviation rectification machine for feeding belt, comprising a rack arranged on one side of the belt conveyor, a deviation detection device and a deviation rectification device; the rack supports the driven drum, the deviation rectification device and the deviation detection device, and the deviation rectification device and the deviation detection device are arranged on both sides of the belt conveyor; wherein the deviation detection device comprises a detection drum, the upper end of the detection drum is provided with a rotating shaft, the rotating shaft is inserted into the bearing seat; the side end of the rotating shaft is provided with a shaft coupling and a rotary encoder, and the side end of the rotary encoder is provided with a limit switch.

[0009] As a further improvement of the above scheme, a spring is arranged between the detection drum and the bearing seat.

[0010] As a further improvement of the above-mentioned scheme, the upper end of the detection roller is provided with an adjusting screw

[0011] As a further improvement of the above-mentioned scheme, the deviation rectifying device comprises a servo motor, the output end of the servo motor is connected with a right-angle speed reducer, the right-angle speed reducer is connected with an electric cylinder, the output end of the electric cylinder is connected with a bearing sliding seat, the bearing sliding seat is slidingly arranged on a rack sliding strip; the front end of the electric cylinder is provided with a tension sensor; the side end of the bearing sliding seat is provided with a hinge.

[0012] As a further improvement of the above-mentioned scheme, the upper end of the bearing sliding seat is provided with an origin pointer.

[0013] As a further improvement of the above-mentioned scheme, a dust cover is arranged at the deviation rectifying device.

[0014] As a further improvement of the above-mentioned scheme, the bearing sliding seat is arranged as a Y-shaped hinge pulling spherical bearing sliding seat.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] 1、The automatic deviation rectifying machine for the feeding belt has high automation degree, and can realize stable operation without manning for more than half a year after installation in the field, and automatically operates according to the feeding condition at the front end.

[0017] 2、The electric cylinder (the movement mechanism of the electric cylinder is all sealed in the electric cylinder) makes the mechanical movement part not be stuck by dust, the equipment can be well adapted to the severe dust pollution of the bad environment, the unmanned access time is long, and once put into use, the equipment basically does not need to be stopped or personnel to be intervened before overall maintenance, so that the maintenance difficulty and cost are greatly reduced, and the reliability and maintainability of the equipment are improved.

[0018] 3、The tension sensor is used for detecting the belt tension, and the signal is used for controlling the action of the deviation rectifying machine on the belt, so that the belt is not in an overload state, the belt and the deviation rectifying machine work normally, and the service life is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a front view of the utility model.

[0020] Figure 2 It is a side view of the utility model.

[0021] Figure 3 It is a top view of the utility model.

[0022] Figure 4 It is the installation schematic view of detecting the roller in the utility model.

[0023] Figure 5 It is the schematic view of detecting the rack in the utility model.

[0024] In the figure: 1, rack;2, bearing seat;3, spring;4, detection roller;5, rotating shaft;6, adjusting screw;7, coupling;8, rotary encoder;9, limit switch;10, servo motor;11, right angle speed reducer;12, electric cylinder;13, tension sensor;14, hinge;15, rack slide;16, bearing slide;17, origin pointer;18, left detection device;19, right detection device;20, left deviation rectifying device;21, right deviation rectifying device;22, driven roller;23, belt conveyor. DETAILED DESCRIPTION

[0025] In order to make those skilled in the art better understand the technical scheme, the utility model is described in detail below in conjunction with examples, and the description in this part is only exemplary and explanatory, and should not have any limiting effect on the protection scope of the utility model.

[0026] As Figures 1-5 The specific scheme of the embodiment is: an automatic deviation rectifying machine for feeding belt, which comprises a rack 1 arranged on one side of a belt conveyor 23, a deviation rectifying detection device and a deviation rectifying device;The rack 1 supports a driven roller 22, a deviation rectifying device and a deviation rectifying detection device, and the deviation rectifying device and the deviation rectifying detection device are arranged on both sides of the belt conveyor 23;The deviation rectifying detection device comprises a detection roller 4, the upper end of the detection roller 4 is provided with a rotating shaft 5, the rotating shaft 5 is inserted into a bearing seat 2;The side end of the rotating shaft 5 is provided with a coupling 7 and a rotary encoder 8, and the side end of the rotary encoder 8 is provided with a limit switch 9. The deviation rectifying device is divided into a left deviation rectifying device 20 and a right deviation rectifying device 21, and the deviation rectifying detection device is divided into a left detection device 18 and a right detection device 19.

[0027] As a preferred mode of the above embodiment, a spring 3 is arranged between the detection roller 4 and the bearing seat 2.

[0028] As a preferred mode of the above embodiment, the upper end of the detection roller 4 is provided with an adjusting screw 6.

[0029] As a preferred mode of the above embodiment, the deviation rectifying device comprises a servo motor 10, the output end of the servo motor 10 is connected with a right angle speed reducer 11, the right angle speed reducer 11 is connected with an electric cylinder 12, the output end of the electric cylinder 12 is connected with a bearing slide 16, and the bearing slide 16 is slidingly arranged on a rack slide 15;The front end of the electric cylinder 12 is provided with a tension sensor 13;The side end of the bearing slide 16 is provided with a hinge 14.

[0030] As a preferred embodiment of the above, the upper end of the bearing slide 16 is provided with an origin pointer 17.

[0031] As a preferred embodiment of the above, a dust cover is provided at the correction device.

[0032] As a preferred embodiment of the above, the bearing slide 16 is configured as a Y-type hinge to pull the spherical bearing slide.

[0033] Detection Principle: The detection devices are installed on both sides of the upper end of the feed belt. When the feed belt deviates to one side, it hits the detection roller 4, causing the detection roller 4 to shift to one side. This shift drives the rotating shaft 5 to rotate, which is transmitted to the rotary encoder 8 via the coupling 7. The rotation angle of the rotary encoder 8 is calculated by the PLC using trigonometric functions to determine the specific value of the feed belt deviation. The encoder height remains constant at 100°, and the belt oscillation causes the encoder to output angle data. This data is then multiplied by the adjacent side value using a tangent command to obtain the opposite side value (deviation value).

[0034] The tension of spring 3 and the action of adjusting screw 6 ensure that detection roller 4 is always pressed against the feed belt, guaranteeing the accuracy of the calculated values. Rotary encoder 8 has a limit deviation angle set; if this angle fails, limit switch 9 provides a second layer of protection.

[0035] Correction principle: The tension of the feed belt is detected by the tension sensor 13. When the detected belt tension is greater than or less than the set tension, the PLC controls the servo motor to adjust it appropriately to ensure that the belt tension is within the set range. When the belt deviates, the detection device will detect the specific deviation value. At this time, the PLC controls the servo motors 10 on both sides to drive the right-angle reducer 11, the electric cylinder 12, and the Y-shaped hinge to pull the spherical bearing slide 16 back and forth on the frame slide bar 15. When the belt deviates to the left, the servo motor 10 tightens on the left and loosens on the right; when the belt deviates to the right, the servo motor 10 tightens on the right and loosens on the left, which can quickly correct the deviation.

[0036] This invention also has the following functions:

[0037] 1. Methods to overcome heavily dusty environments:

[0038] 1.1. In terms of mechanics, electric cylinders are used (the movement mechanism of the electric cylinder is sealed inside the electric cylinder) so that the mechanical moving parts will not be jammed due to dust.

[0039] 1.2. Electrically, a rotary encoder 8 is used to detect belt misalignment. A detection roller 4 is placed next to the belt; the belt's oscillation causes the rotary encoder 8 to output angular information, which is then used to calculate the corresponding misalignment position using trigonometric functions. The PLC program then adjusts the corrective mechanism based on the amount of misalignment.

[0040] 2. Extend the service life of equipment:

[0041] 2.1. Tension sensor 13 is used to detect belt tension, and this signal is used to control the belt alignment machine's action on the belt. This prevents the belt from being overloaded, ensuring normal operation of both the belt and the alignment machine, thereby extending their service life. The low failure rate of the equipment also reduces maintenance and improves efficiency.

[0042] 2.2. The machine parts have a strength value three times that of the design theory and are treated with multiple layers of protection.

[0043] 2.3. The bearings of the straightening machine are made of spherical rollers to prevent the tangential force generated on the bearing housing by the deflection of the rollers during straightening.

[0044] 2.4. Absolute value servo motors are used to ensure that the machine can remember its current position after power failure, and over-adjustment is limited in the software.

[0045] It should be noted that, in this document, the terms "including," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Specific examples have been used in this document to illustrate the principles and implementation methods of the present invention. These examples are merely for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be pointed out that, due to the limitations of written expression and the objective existence of infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the present invention to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. An automatic belt alignment machine for a feeding belt, characterized in that, It includes a frame (1) set on one side of the belt conveyor (23), a correction detection device and a correction device; the frame (1) supports the driven roller (22), the correction device and the correction detection device, and the correction device and the correction detection device are respectively set on both sides of the belt conveyor (23); the correction detection device includes a detection roller (4), the upper end of the detection roller (4) is provided with a rotating shaft (5), the rotating shaft (5) is inserted into the bearing seat (2); the side end of the rotating shaft (5) is provided with a coupling (7) and a rotary encoder (8), and the side end of the rotary encoder (8) is provided with a limit switch (9).

2. The automatic belt alignment machine for feeding conveyors according to claim 1, characterized in that, A spring (3) is provided between the detection roller (4) and the bearing seat (2).

3. The automatic belt alignment machine for feeding conveyors according to claim 1, characterized in that, An adjusting screw (6) is provided at the upper end of the detection roller (4).

4. The automatic belt alignment machine for feeding conveyors according to claim 1, characterized in that, The correction device includes a servo motor (10), the output end of which is connected to a right-angle reducer (11), the right-angle reducer (11) is connected to an electric cylinder (12), the output end of which is connected to a bearing slide (16), and the bearing slide (16) is slidably mounted on the frame slide bar (15); a tension sensor (13) is provided at the front end of the electric cylinder (12); and a hinge (14) is provided at the side end of the bearing slide (16).

5. The automatic belt alignment machine for a feeding belt according to claim 1, characterized in that, The upper end of the bearing slide (16) is provided with an origin pointer (17).

6. The automatic belt alignment machine for feeding conveyors according to claim 1, characterized in that, A dust cover is installed at the correction device.

7. The automatic belt alignment machine for feeding conveyors according to claim 1, characterized in that, The bearing slide (16) is configured as a bearing slide with a Y-type hinge that pulls the spherical surface.

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