A synchronous adjustment method for horizontal double-sided conveyor

Abstract

The present invention provides a synchronous adjustment method for a horizontal double-sided conveyor, comprising: S10: a controller determines a preset speed of a driving device; S20: a film material is mounted at the starting end of a forward transmission part; S30: two driving devices are started at the same time, and the two driving devices operate at the same preset speed; S40: waiting for the film material to move to the end of the forward transmission part; S50: observing the state of the film material at the end of the forward transmission part; if the film material has a stretched twill, the speed of the driving device on the rear side of the stretched twill is increased; or the speed of the driving device on the front side of the stretched twill is decreased; S60: the two driving devices are continued to operate, and the state of the film material at the end of the forward transmission part is observed; if the film material still has a stretched twill, the adjustment is continued; S70: step S60 is repeated until the film material at the end of the forward transmission part does not produce a stretched twill, which means that the conveying transmission parts on both sides are synchronized. The device overcomes the defect of asynchronous conveying caused by errors in existing equipment.

Description

Technical Field

[0001] The invention relates to the technical field of conveying equipment, and in particular to a synchronous adjustment method for a horizontal double-sided conveyor. Background Art

[0002] In some material conveying scenarios, such as electroplating spraying equipment for wide single pieces or continuous materials, it is necessary to carry materials on both sides for conveying, and how to ensure the synchronization of bilateral conveying transmission becomes an important issue. For example, when electroplating membrane materials, when the synchronous deviation of the conveying on both sides is large, the membrane surface will have diagonal wrinkles at the least, and the membrane will break at the worst. Most of the existing horizontal bilateral conveyors use a single motor to drive two reducers at the same time to drive the conveying transmission parts on both sides, that is, the steel belts, to circulate. However, due to the unavoidable machining and installation errors, the solution of using a single power to drive the operation of both sides cannot eliminate these errors, resulting in the inability to achieve good synchronous rotation between the steel belts on both sides. After long-term use, the products arriving at the conveyor outlet will cause quality accidents such as wrinkles on the membrane surface due to the different arrival times on both sides of the membrane. Summary of the invention

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the conveying transmission parts on both sides of the double-sided conveyor in the prior art are prone to asynchronous conveying.

[0004] In order to solve the above technical problems, the technical solution adopted in this application is:

[0005] A method for synchronously adjusting a horizontal double-sided conveyor, the horizontal double-sided conveyor comprising a conveying transmission part, a driving device and a controller; the conveying transmission part has two; each conveying transmission part is driven by a driving device to circulate, and the conveying transmission part is divided into a forward transmission part and a return transmission part due to the circulatory operation; the forward transmission parts on both sides are of equal length and arranged in parallel, and are used to convey film materials; the controller is in communication connection with the two driving devices;

[0006] It includes the following steps:

[0007] S10: According to the preset conveying speed of the horizontal double-sided conveyor, the controller determines the preset rotation speed of the driving device;

[0008] S20: Mounting the film material between the starting ends of the forward transmission parts on both sides;

[0009] S30: start the two driving devices at the same time, and the controller controls the two driving devices to operate at the same preset speed;

[0010] S40: Waiting for the film material to move to the end of the forward transmission part;

[0011] S50: Observe the state of the film material at the end of the forward transmission part; if the film material has a stretched twill, increase the speed of the driving device on the rear side of the stretched twill through the controller; or reduce the speed of the driving device on the front side of the stretched twill through the controller;

[0012] S60: Continue to operate the two driving devices, and observe the state of the film material at the end of the forward transmission part after a preset time interval; if the film material still has stretched twill, adjust the speed of the driving device according to the judgment rule of step S50;

[0013] S70: Repeat step S60 until the film material at the end of the forward transmission part does not produce stretched twill, which means that the conveying transmission parts on both sides are synchronized.

[0014] Optionally, in step S50 and / or step S60, when the rotation speed of the driving device is adjusted, the adjustment amount is one ten-thousandth to one thousandth of the preset rotation speed.

[0015] Optionally, it also includes:

[0016] S80: After the conveying transmission parts on both sides are synchronized, the controller respectively records the preset conveying speed and the actual rotation speed of the driving devices on both sides;

[0017] S90: When the horizontal double-sided conveyor needs to run at a preset conveying speed, the controller retrieves the actual rotation speeds of the driving devices on both sides in step S80 to drive the driving devices on the corresponding sides.

[0018] Optionally, a tensioner is provided on each conveying transmission part;

[0019] Before step S10, the method further includes the following steps:

[0020] S01: Perform multiple tests on the running speed of the conveying transmission part on one side to obtain multiple groups of running speeds;

[0021] S02: comparing the multiple groups of running speeds obtained in step S01, if there is an unstable fluctuation between the multiple groups of running speeds, increasing the tensioning force of the tensioner on the corresponding side;

[0022] S03: Repeat S01 and S02 until the running speed of the conveying transmission part on the corresponding side reaches stability.

[0023] Optionally, the tensioner is a self-compensating tensioner.

[0024] Optionally, the tensioner is a gravity tensioner, which uses stacked C-shaped open weights to provide tensioning force.

[0025] Optionally, in step S01, a preset point is set on the conveying transmission part; a static point is set beside the conveying transmission part, and the running time of the conveying transmission part is obtained by calculating the time difference between the preset point and the static point, and the running time represents the running speed.

[0026] Optionally, in step S01, two stationary points are provided along the front-rear direction of the conveying transmission part, and the running time is obtained by calculating the time difference between a preset point passing through the two stationary points in front and behind.

[0027] Optionally, the driving device pulls the forward transmission part to move.

[0028] By adopting the above technical solution, the present invention has the following technical effects:

[0029] This synchronous adjustment method abandons the scheme of relying on a single power source to drive the conveying transmission parts 6 on both sides at the same time. It uses two driving devices 1 to drive the conveying transmission parts 6 on the corresponding sides respectively, and synchronizes the speeds of both sides through the controller, so as not to rely on the manufacturing and assembly accuracy of the relevant parts of the conveying transmission parts 6 on both sides, and no longer needs to perform special measurement and matching work on the parts on both sides, thereby improving the assembly efficiency. By observing the stretching condition of the diaphragm reaching the end of the forward transmission part 5, it is easy and intuitive to know which side is faster and which side is slower, so as to facilitate targeted adjustment; the effect after adjustment can also be intuitively observed and confirmed, so that the difficulty of debugging is simplified. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 It is a schematic top view of the structure of a horizontal double-sided conveyor according to an embodiment of the present invention;

[0032] Figure 2 It is a schematic structural stereoscopic diagram of a horizontal double-sided conveyor according to an embodiment of the present invention.

[0033] Description of reference numerals:

[0034] 1-driving device, 2-feeding port, 3-first detector, 4-return transmission part, 5-forward transmission part, 6-transmission transmission part, 7-second detector, 8-tensioner, 9-active roller, 10-frame, 11-passive roller, 12-C-shaped opening weight, 13-feeding port. DETAILED DESCRIPTION

[0035] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] It should be noted that in the description of the present invention, the directions or positional relationships indicated by terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0037] In the description of the present invention, it should be noted that, 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 ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0039] This embodiment provides a method for synchronously adjusting a horizontal double-sided conveyor.

[0040] In one embodiment, Figure 1 and 2As shown, the horizontal double-sided conveyor used therein includes a conveying transmission part 6, a driving device 1 and a controller. The controller is in communication connection with the two driving devices 1. The conveying transmission part 6 is a continuously connected flexible body, which has two; each conveying transmission part 6 is driven by a driving device 1 for cyclic operation, and the driving device 1 can adopt a servo motor or other equipment with high control accuracy. Since the conveying transmission part 6 performs a cyclic motion between the active roller 9 and the passive roller 11 on the frame 10, it can be divided into a forward transmission part 5 and a return transmission part 4, that is, the forward transmission part 5 that runs in the forward direction on the production line is the working section where the conveyor performs the conveying operation, and the section where the conveying transmission part 6 turns back due to the cyclic motion is the return transmission part 4. The forward transmission parts 5 on both sides are equal in length and arranged in parallel so as to be used for conveying film materials. The forward transmission parts 5 on both sides can preferably be relatively close, so that the return transmission parts 4 of the two conveying transmission parts 6 are relatively far away. In this way, the forward transmission parts 5 on both sides can clamp or hook the material in the middle, increase the stability of the material during carrying, and diversify the material carrying method.

[0041] The synchronous adjustment method of the horizontal double-sided conveyor of this embodiment comprises the following steps:

[0042] S10: According to the preset conveying speed of the horizontal double-sided conveyor and the transmission ratio from the drive device 1 to the execution terminal, the controller determines the preset rotation speed corresponding to the drive device 1.

[0043] S20: Mounting the film material between the starting ends of the forward transmission parts 5 on both sides, which is equivalent to the loading port 2 of the equipment.

[0044] S30: The two driving devices 1 are started simultaneously, and the controller controls the two driving devices 1 to operate at the same preset rotation speed.

[0045] S40: Waiting for the film material to move to the end of the forward transmission part 5, which is equivalent to the unloading port 13 of the equipment.

[0046] S50: Observe the state of the film material at the end of the forward transmission part 5. If there is a difference in the conveying speed on both sides, the film material is fixed on both sides of the conveying transmission part 6, and the two sides are pulled asynchronously, which will cause stretching twill to appear in the middle of the film material. After the stretching twill appears, the controller increases the speed of the drive device 1 on the rear side of the stretching twill; or the controller decreases the speed of the drive device 1 on the front side of the stretching twill.

[0047] S60: Continue to operate the two driving devices 1, and after a preset time interval, for example, the time after all the previously appeared stretched twills are sent out from the discharge port 13, observe the state of the film material at the end of the forward transmission part 5; if the film material still has stretched twills, adjust the rotation speed of the driving device 1 according to the judgment rule of step S50.

[0048] S70: Repeat step S60 until the film material at the end of the forward transmission part 5 does not produce stretched twill, which means that the conveying transmission parts 6 on both sides are synchronized.

[0049] This synchronous adjustment method abandons the scheme of relying on a single power source to drive the conveying transmission parts 6 on both sides at the same time. It uses two driving devices 1 to drive the conveying transmission parts 6 on the corresponding sides respectively, and synchronizes the speeds of both sides through the controller, so as not to rely on the manufacturing and assembly accuracy of the relevant parts of the conveying transmission parts 6 on both sides, and no longer needs to perform special measurement and matching work on the parts on both sides, thereby improving the assembly efficiency. By observing the stretching condition of the diaphragm reaching the end of the forward transmission part 5, it is easy and intuitive to know which side is faster and which side is slower, so as to facilitate targeted adjustment; the effect after adjustment can also be intuitively observed and confirmed, so that the difficulty of debugging is simplified.

[0050] Based on the above implementation, in a preferred implementation, in step S50 and / or step S60, when adjusting the rotation speed of the drive device 1, the adjustment amount is preferably one ten-thousandth to one thousandth of the preset rotation speed. This selection is because although the components have manufacturing and assembly errors, the overall error range presented by the entire system after assembly will not be too large, and after a relatively small adjustment with the above adjustment amount, the running speed difference on both sides will form a pattern of gradually approaching each other step by step, so that it can be adjusted in place quickly, avoiding the problem that the original relatively slow one will suddenly become the relatively fast one after using too large an adjustment amount, and then the speed difference on both sides will continue to jump in a discrete manner, and finally make it difficult to reach the synchronization state after multiple rounds of adjustment in the debugging operation.

[0051] Based on the above implementation, in a preferred implementation, the adjustment method further includes:

[0052] S80: After the conveying transmission parts 6 on both sides are synchronized, the controller respectively records the preset conveying speed and the actual rotation speed of the driving devices 1 on both sides.

[0053] S90: When the horizontal double-sided conveyor needs to run at a preset conveying speed, the controller retrieves the actual rotation speed of the driving devices 1 on both sides in step S80 to drive the driving devices 1 on the corresponding sides.

[0054] These steps are added because the horizontal double-sided conveyor may require different preset conveying speeds according to different products in actual application, and each preset conveying speed will correspond to a different actual rotation speed of the drive device 1. After the synchronous debugging of a certain preset conveying speed is completed, the corresponding actual rotation speed of the drive device 1 is recorded, which can facilitate the application scenarios in which the preset conveying speed needs to be changed and then adjusted back in the future.

[0055] Based on the above implementation, in a preferred implementation, Figure 1 and 2 As shown, a tensioner 8 is provided on each conveying transmission part 6. Specifically, a driving roller 9 is sleeved on one end of the conveying transmission part 6; and a passive roller 11 is sleeved on the other end of the conveying transmission part 6. The two driving devices 1 are respectively connected to the driving roller 9 of each conveying transmission part 6 in a driving manner, and are fixedly connected to the frame 10. The two tensioners 8 are respectively connected to the passive roller 11 of each conveying transmission part 6 in a rotational manner, and are fixedly connected to the frame 10. The two tensioners 8 can preferably be located at the same end of the frame 10, and the two driving devices 1 can also be located at the same end of the frame 10. In this way, the same devices can be brought close together. For example, when adjusting the synchronization of both sides, it is convenient to adjust the tensioners 8 on both sides, and the driving devices 1 located at the same end are conveniently connected to the controller, reducing the wiring length.

[0056] The debugging method of this embodiment further includes the following steps before step S10:

[0057] S01: Perform multiple detections on the running speed of the conveying transmission part 6 on one side to obtain multiple groups of running speeds.

[0058] S02: Compare the multiple groups of running speeds obtained in step S01. If there is an unstable fluctuation between the multiple groups of running speeds, increase the tensioning force of the tensioner 8 on the corresponding side.

[0059] S03: Repeat S01 and S02 until the running speed of the conveying transmission part 6 on the corresponding side reaches stability.

[0060] The above adjustment method fully considers the measurement error caused by the slip of the conveying transmission part 6, especially for the use of steel belt as the conveying transmission part 6 on the coating line, because the friction coefficient of steel material is relatively low, so before adjusting the rotation speed of the driving device 1, the problem of steel belt slippage must be eliminated first, otherwise no matter how it is adjusted, synchronization of the two sides will not be achieved. It should be noted that although errors will occur in the manufacture and assembly of various components, resulting in differences in the operating speeds of different batches of conveying equipment, for a single set of conveying transmission parts 6, once assembled, its actual operating speed is basically in a fixed value state and will not change in a short time. Therefore, even a small fluctuation in the operating time difference during debugging should be given enough attention, which usually means that the steel belt is slipping, especially when the equipment is usually unloaded during debugging. Once mounted, the slippage is more serious, resulting in quality accidents.

[0061] Based on the above embodiment, in a preferred embodiment, the tensioner 8 is a self-compensating tensioner. A self-compensating tensioner is a device that can still provide tensioning force in the tensioning direction when the conveying transmission part 6 is relaxed due to stretching or other parts loosening, thereby ensuring that the device can operate stably for a long time. It usually includes a spring tensioner and a gravity tensioner.

[0062] Based on the above implementation, in a preferred implementation, Figure 1 and 2 As shown, the tensioner 8 is preferably a gravity tensioner, because for a conveying transmission component such as a steel belt with high strength and low friction coefficient, the required tensioning force is very large, and a spring tensioner needs a high-strength spring component to provide a huge tensioning force, which is relatively expensive. A gravity tensioner often uses a counterweight to pull to provide tensioning force, which is relatively cheap.

[0063] The gravity tensioner preferably uses stacked C-shaped open weights 12 to provide tensioning force. The C-shaped open weights 12 are similar to the weights used in a lever-type platform scale. The weights can be simply inserted through the C-shaped opening on the hook, so that different numbers of weights are stacked to achieve the required gravity. For the synchronous debugging process, since it may be necessary to continuously adjust the pulling force on the tensioner 8 to prevent slipping, the required tensioning force can be achieved by simply stacking weights through a single person operation, without the need to use special lifting equipment to replace the counterweight, thereby improving the adjustment work efficiency.

[0064] Based on the above implementation, in a preferred implementation, in step S01, a preset point is set on the conveying transmission part 6; a static point is set beside the conveying transmission part 6, and the running time of the conveying transmission part 6 is obtained by calculating the time difference between the preset point and the static point, and the running time is used to represent the running speed for subsequent steps. The above timing method can use a marker to mark the corresponding position, and then determine the passing of the marked point by naked eye observation, or use a detection device for timing, for example, a reflective point is set on the conveying transmission part 6, and a photoelectric detector is used at the static point to detect the passing time of the reflective point, or the passing time of the preset point is determined by the cooperation of the convex point and the travel switch.

[0065] The above adjustment method replaces the speed measurement with a simple measurement of the running time, which not only saves the step of detecting or calculating the speed, but also helps to improve the efficiency of the debugging work. Moreover, because the device for detecting the speed is relatively expensive and has many usage restrictions, while the device for detecting the elapsed time is cheap and easy to set up, it helps to reduce the component cost of the entire equipment.

[0066] Based on the above embodiment, in a preferred embodiment, in step S01, the static point is set at two locations along the front-rear direction of the conveying transmission part 6, as shown in FIG. Figure 1 and 2 The first detector 3 and the second detector 7 arranged on the frame 10 as shown obtain the running time by calculating the time difference between the preset point passing through the two static points before and after.

[0067] Because the horizontal double-sided conveyor used in the electroplating production line usually has a long span, sometimes up to 18 meters long from beginning to end, it is relatively time-consuming to wait for the conveying transmission part 6 to run for one circle and then record the entire cycle time. Therefore, two static detection points are set to only detect the running time within a fixed section of the conveying transmission part 6, so that comparative sample data can be quickly obtained, thereby speeding up the debugging process.

[0068] Based on the above embodiment, in a preferred embodiment, the driving device 1 pulls the forward transmission part 5 to move. Since the conveying transmission part 6 is usually a flexible object such as a cable or a strip, its shape will be deformed by the pulling force, and in this embodiment, the driving device 1 pulls the forward transmission part 5 to move, so that the forward transmission part 5 can be straightened, while the return transmission part 4 will be relatively loose and shaken to a certain extent, so as to avoid the film material from being accidentally stretched and deformed due to the looseness and shaking to form wrinkles, thereby avoiding misjudgment of the operation synchronization status of the conveying transmission parts 6 on both sides.

[0069] Obviously, the above embodiments are merely examples for clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from them are still within the protection scope of the invention.

Claims

1. A method for synchronously adjusting a horizontal double-sided conveyor, characterized in that: The horizontal double-sided conveyor comprises a conveying transmission part (6), a driving device (1) and a controller; the conveying transmission part (6) has two; each conveying transmission part (6) is driven by a driving device (1) to circulate, and the conveying transmission part (6) is divided into a forward transmission part (5) and a return transmission part (4) due to the circulatory operation; the forward transmission parts (5) on both sides are of equal length and arranged in parallel, and are used for conveying film materials; the controller is connected to the two driving devices (1) for communication; It includes the following steps: S10: The controller determines a preset rotation speed of the driving device (1) according to a preset conveying speed of the horizontal double-sided conveyor; S20: Mounting the film material between the starting ends of the forward transmission parts (5) on both sides; S30: starting the two driving devices (1) simultaneously, and the controller controls the two driving devices (1) to operate at the same preset speed; S40: Waiting for the film material to move to the end of the forward transmission part (5); S50: observing the state of the film material at the end of the forward transmission part (5); if the film material has a stretched twill, increasing the speed of the driving device (1) on the rear side of the stretched twill through the controller; or The controller is used to reduce the rotation speed of the driving device (1) on the front side of the stretched twill; S60: continue to operate the two driving devices (1), and observe the state of the film material at the end of the forward transmission part (5) after a preset time interval; if the film material still has stretched twill, adjust the rotation speed of the driving device (1) according to the judgment rule of step S50; S70: Repeat step S60 until the film material at the end of the forward transmission part (5) does not produce stretched twill, which means that the conveying transmission parts (6) on both sides are synchronized; A tensioner (8) is provided on each conveying transmission part (6); Before step S10, the method further includes the following steps: S01: performing multiple tests on the running speed of the conveying transmission part (6) on one side to obtain multiple groups of running speeds; S02: comparing the multiple groups of running speeds obtained in step S01, if there is an unstable fluctuation between the multiple groups of running speeds, increasing the tensioning force of the tensioner (8) on the corresponding side; S03: Repeat S01 and S02 until the running speed of the conveying transmission part (6) on the corresponding side reaches stability.

2. The method for synchronously adjusting a horizontal double-sided conveyor according to claim 1 is characterized in that: In step S50 and / or step S60, when the rotation speed of the driving device (1) is adjusted, the adjustment amount is one ten-thousandth to one thousandth of the preset rotation speed.

3. The method for synchronously adjusting a horizontal double-sided conveyor according to claim 2 is characterized in that: Also includes: S80: After the conveying transmission parts (6) on both sides are synchronized, the controller respectively records the preset conveying speed and the actual rotation speed of the driving devices (1) on both sides; S90: When the horizontal double-sided conveyor needs to run at a preset conveying speed, the controller retrieves the actual rotation speed of the driving devices (1) on both sides in step S80 to drive the driving devices (1) on the corresponding sides.

4. The method for synchronously adjusting a horizontal double-sided conveyor according to claim 1, characterized in that: The tensioner (8) is a self-compensating tensioner.

5. The method for synchronously adjusting a horizontal double-sided conveyor according to claim 4 is characterized in that: The tensioner (8) is a gravity tensioner, which uses stacked C-shaped open weights (12) to provide tensioning force.

6. The method for synchronously adjusting a horizontal double-sided conveyor according to claim 1, characterized in that: In step S01, a preset point is set on the conveying transmission part (6); a static point is set beside the conveying transmission part (6), and the running time of the conveying transmission part (6) is obtained by calculating the time difference between the preset point and the static point, and the running time is used to represent the running speed.

7. The method for synchronously adjusting a horizontal double-sided conveyor according to claim 6, characterized in that: In step S01, two static points are set along the front-rear direction of the conveying transmission part (6), and the running time is obtained by calculating the time difference between the preset point passing through the two static points in front and behind.

8. The method for synchronously adjusting a horizontal double-sided conveyor according to claim 1, characterized in that: The driving device (1) pulls the forward transmission part (5) to move.

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