Straightening device and control method thereof

Abstract

This invention discloses a straightening device and its control method, relating to the field of straightening technology. The straightening device includes a feeding mechanism, a feeding roller conveyor, a first transition roller conveyor, a straightening mechanism, a position detector, and a controller. The feeding roller conveyor is connected to the straightening mechanism via the first transition roller conveyor. The feeding directions of the feeding roller conveyor and the first transition roller conveyor are the same. The position of the feeding mechanism corresponds to the position of the feeding roller conveyor. The position detector is electrically connected to the controller, which is also electrically connected to the feeding mechanism, the feeding roller conveyor, the first transition roller conveyor, and the straightening mechanism. The first transition roller conveyor has a first inlet end and a first outlet end positioned opposite each other. The controller is used to control the feeding mechanism to feed the next bar onto the feeding roller conveyor when the position detector detects that the tail of the bar has retracted into the first inlet end. The straightening device provided by this invention can improve straightening efficiency and shorten the straightening cycle while ensuring that no tail-end jamming occurs. It is practical, reliable, and highly safe.

Description

Technical Field

[0001] This invention relates to the field of straightening technology, and more specifically, to a straightening device and its control method. Background Technology

[0002] Currently, in the operation of straightening mechanisms, the bar stock is typically first fed into the feeding roller conveyor using a steel-pushing mechanism. Then, the feeding roller conveyor feeds the bar stock to the straightening mechanism. After straightening, the unloading roller conveyor moves the bar stock away from the straightening mechanism, and finally, the steel-pushing mechanism pushes the bar stock away from the unloading roller conveyor. During this process, because the bar stock varies in length, to ensure that the bar stock enters the straightening mechanism one after another without two bars colliding or jamming, the next bar stock is fed into the feeding roller conveyor only after the previous bar stock has been straightened and completely left the straightening mechanism. However, this results in a longer straightening cycle and a significant reduction in straightening efficiency.

[0003] Therefore, designing and manufacturing a straightening device with high straightening efficiency and its control method is particularly important, especially in bar straightening. Summary of the Invention

[0004] The purpose of this invention is to provide a straightening device that can improve straightening efficiency and shorten the straightening cycle without causing rear-end collisions or jamming, and is practical, reliable, and safe.

[0005] Another objective of this invention is to provide a control method for a straightening device that can improve straightening efficiency and shorten the straightening cycle without causing rear-end collisions or jamming, and is practical, reliable, and highly safe.

[0006] The present invention is achieved by the following technical solution.

[0007] A straightening device includes a feeding mechanism, a feeding roller conveyor, a first transition roller conveyor, a straightening mechanism, a position detector, and a controller. The feeding roller conveyor is connected to the straightening mechanism via the first transition roller conveyor. The feeding direction of the feeding roller conveyor and the first transition roller conveyor is the same. Both the feeding roller conveyor and the first transition roller conveyor are used to convey bars. The straightening mechanism is used to straighten the bars. The position of the feeding mechanism corresponds to the position of the feeding roller conveyor. The feeding mechanism is used to feed the bars to the feeding roller conveyor. The position detector is electrically connected to the controller. The position detector is used to detect the position data of the bars and send it to the controller. The controller is also electrically connected to the feeding mechanism, the feeding roller conveyor, the first transition roller conveyor, and the straightening mechanism. The first transition roller conveyor has a first inlet end and a first outlet end arranged opposite to each other. The controller is used to control the straightening mechanism to perform a straightening operation when the position detector detects that the head of the bar extends out of the first outlet end. The controller is also used to control the feeding mechanism to feed the next bar to the feeding roller conveyor when the position detector detects that the tail of the bar retracts into the first inlet end.

[0008] Optionally, the length of the first transition roller is equal to half the maximum length of the bar.

[0009] Optionally, the position detector includes a first detector, a second detector, and a third detector. The first detector is installed on the feeding roller conveyor, and the controller is used to control the feeding mechanism to pause when the first detector detects that there are bars on the feeding roller conveyor. The second detector is installed at the first inlet end, and the third detector is installed at the first outlet end.

[0010] Optionally, there may be multiple first detectors, which are spaced apart along the feeding direction of the feeding roller conveyor.

[0011] Optionally, the first detector, the second detector, and the third detector are all grating detection elements.

[0012] Optionally, the straightening device further includes a second transition roller conveyor, a discharge roller conveyor, and a discharge mechanism. The straightening mechanism is connected to the discharge roller conveyor via the second transition roller conveyor. The discharge roller conveyor and the second transition roller conveyor have the same feeding direction. Both the discharge roller conveyor and the second transition roller conveyor are used to convey bars. The position of the discharge mechanism corresponds to the position of the discharge roller conveyor. The discharge mechanism is used to unload the bars from the discharge roller conveyor. The controller is electrically connected to the second transition roller conveyor, the discharge roller conveyor, and the discharge mechanism. The second transition roller conveyor is provided with a second inlet end and a second outlet end. The controller is used to control the straightening mechanism to pass through when the position detector detects that the tail of the bar has retracted into the second inlet end, and to control the feeding roller conveyor to feed the next bar into the first transition roller conveyor. The controller is also used to control the discharge mechanism to unload the bar from the discharge roller conveyor when the position detector detects that the tail of the bar has extended out of the second outlet end.

[0013] Optionally, the position detector includes a fourth detector, a fifth detector, and a sixth detector. The fourth detector is installed at the second inlet end, the fifth detector is installed at the second outlet end, and the sixth detector is installed on the feeding roller conveyor. The controller is used to stop the entire machine when the sixth detector detects that there is a bar on the feeding roller conveyor and the head of the next bar extends out of the second outlet end.

[0014] Optionally, the fourth and sixth detectors are both proximity switch detection elements, and the fifth detector is a grating detection element.

[0015] A control method for a straightening device, comprising: feeding a bar to a feeding roller conveyor using a feeding mechanism, and feeding the bar to a first transition roller conveyor using the feeding roller conveyor; feeding the bar towards the straightening mechanism using the first transition roller conveyor; controlling the straightening mechanism to straighten the bar when the head of the bar extends out of the first outlet end; and controlling the feeding mechanism to feed the next bar to the feeding roller conveyor when the tail of the bar retracts into the first inlet end.

[0016] Optionally, the straightening device further includes a second transition roller conveyor, a feeding roller conveyor, and a feeding mechanism. The straightening mechanism is connected to the feeding roller conveyor via the second transition roller conveyor. The feeding direction of the feeding roller conveyor and the second transition roller conveyor is the same. The position of the feeding mechanism corresponds to the position of the feeding roller conveyor. The second transition roller conveyor is provided with a second inlet end and a second outlet end. The control method of the straightening device further includes: using the second transition roller conveyor to feed the bar straightened by the straightening mechanism to the feeding roller conveyor; when the tail of the bar retracts into the second inlet end, controlling the straightening mechanism to pass through, and controlling the feeding roller conveyor to feed the next bar into the first transition roller conveyor; when the tail of the bar extends out of the second outlet end, controlling the feeding mechanism to unload the bar from the feeding roller conveyor.

[0017] The straightening device and control method provided by this invention have the following beneficial effects:

[0018] The straightening device provided by this invention includes a feeding roller conveyor connected to a straightening mechanism via a first transition roller conveyor. The feeding roller conveyor and the first transition roller conveyor have the same feeding direction and are both used to transport bars. The straightening mechanism is used to straighten the bars. The position of the feeding mechanism corresponds to the position of the feeding roller conveyor. The feeding mechanism is used to feed the bars to the feeding roller conveyor. A position detector is electrically connected to a controller. The position detector is used to detect the position data of the bars and send it to the controller. The controller is electrically connected to the feeding mechanism, the feeding roller conveyor, the first transition roller conveyor, and the straightening mechanism. The first transition roller conveyor has a first inlet end and a first outlet end arranged opposite to each other. The controller is used to control the straightening mechanism to perform straightening operations when the position detector detects that the head of the bar extends out of the first outlet end. The controller is also used to control the feeding mechanism to feed the next bar to the feeding roller conveyor when the position detector detects that the tail of the bar retracts into the first inlet end. Compared with the prior art, the straightening device provided by the present invention, by adopting a first transition roller conveyor set between the feeding roller conveyor and the straightening mechanism and a position detector electrically connected to the controller, can improve the straightening efficiency and shorten the straightening cycle while ensuring that no rear-end collision or jamming occurs. It is practical, reliable and safe.

[0019] The control method for the straightening device provided by this invention is used to control the straightening device, which can improve the straightening efficiency and shorten the straightening cycle while ensuring that no rear-end collision or jamming occurs. It is practical, reliable, and highly safe. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the straightening device provided in an embodiment of the present invention;

[0022] Figure 2 This is a structural block diagram of the straightening device provided in an embodiment of the present invention.

[0023] Icons: 100-Straightening device; 110-Feeding mechanism; 120-Feeding roller conveyor; 130-First transition roller conveyor; 131-First inlet end; 132-First outlet end; 140-Straightening mechanism; 150-Position detector; 151-First detector; 152-Second detector; 153-Third detector; 154-Fourth detector; 155-Fifth detector; 156-Sixth detector; 160-Controller; 170-Second transition roller conveyor; 171-Second inlet end; 172-Second outlet end; 180-Discharge roller conveyor; 190-Discharge mechanism. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0027] In the description of this invention, it should be noted that the terms "inner," "outer," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0029] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, features in the following embodiments can be combined with each other.

[0030] Please refer to the reference. Figure 1 and Figure 2 This invention provides a straightening device 100 for straightening bars. It can improve straightening efficiency and shorten the straightening cycle without causing rear-end collisions or jamming, and is practical, reliable, and highly safe.

[0031] In this embodiment, the rod is made of metal, and the straightening device 100 is used to press the rod with straightening rollers to change its straightness. However, it is not limited to this; in other embodiments, the rod may also be made of glass, and the material of the rod is not specifically limited.

[0032] The straightening device 100 includes a feeding mechanism 110, a feeding roller conveyor 120, a first transition roller conveyor 130, a straightening mechanism 140, a position detector 150, a controller 160, a second transition roller conveyor 170, a discharge roller conveyor 180, and a discharge mechanism 190. The position of the feeding mechanism 110 corresponds to the position of the feeding roller conveyor 120. The feeding mechanism 110 is located on one side of the feeding roller conveyor 120 and is used to feed the bar stock to the feeding roller conveyor 120 so that the length direction of the bar stock is the same as the feeding direction of the feeding roller conveyor 120. The feeding roller conveyor 120 is connected to the straightening mechanism 140 via the first transition roller conveyor 130. The feeding directions of the feeding roller conveyor 120 and the first transition roller conveyor 130 are the same. Both the feeding roller conveyor 120 and the first transition roller conveyor 130 are used to convey the bar stock. The feeding roller conveyor 120 is used to feed the bar stock to the first transition roller conveyor 130, and the first transition roller conveyor 130 is used to feed the bar stock into the straightening mechanism 140. The straightening mechanism 140 is used to straighten the bar stock. The position detector 150 is electrically connected to the controller 160. The position detector 150 is used to detect the position data of the bar stock and send it to the controller 160 so that the controller 160 can control the entire straightening device 100 to operate in a coordinated manner and prevent rear-end collisions or jamming. The controller 160 is electrically connected to the feeding mechanism 110, the feeding roller conveyor 120, the first transition roller conveyor 130, and the straightening mechanism 140. The first transition roller conveyor 130 has a first inlet end 131 and a first outlet end 132 disposed opposite to each other. The first inlet end 131 is located near the feeding roller conveyor 120, and the first outlet end 132 is located near the straightening mechanism 140. The controller 160 is used to control the straightening mechanism 140 to perform a straightening operation when the position detector 150 detects that the head of the bar extends out of the first outlet end 132. The controller 160 is also used to control the feeding mechanism 110 to send the next bar to the feeding roller conveyor 120 when the position detector 150 detects that the tail of the bar retracts into the first inlet end 131. In this way, as the previous bar completely leaves the feeding roller 120, the next bar is fed onto the feeding roller 120 by the feeding mechanism 110, so as to ensure that the two bars do not appear on the feeding roller 120 at the same time. This can prevent the rear-end jamming situation, improve the straightening efficiency, shorten the straightening cycle, and is practical, reliable and safe.

[0033] It should be noted that the straightening mechanism 140 is connected to the unloading roller conveyor 180 via the second transition roller conveyor 170. The feeding direction of the unloading roller conveyor 180 and the second transition roller conveyor 170 is the same, and both are in the same feeding direction as the loading roller conveyor 120 and the first transition roller conveyor 130. Both the unloading roller conveyor 180 and the second transition roller conveyor 170 are used to convey bars. The straightening mechanism 140 is used to send the straightened bars to the second transition roller conveyor 170, and the second transition roller conveyor 170 is used to send the bars to the unloading roller conveyor 180. The position of the unloading mechanism 190 corresponds to the position of the unloading roller conveyor 180. The unloading mechanism 190 is located on one side of the unloading roller conveyor 180 and is used to unload the bars from the unloading roller conveyor 180. The controller 160 is electrically connected to the second transition roller conveyor 170, the unloading roller conveyor 180, and the unloading mechanism 190. The second transition roller conveyor 170 has a second inlet end 171 and a second outlet end 172 disposed opposite to each other. The second inlet end 171 is located near the straightening mechanism 140, and the second outlet end 172 is located near the unloading roller conveyor 180. The controller 160 is used to control the straightening mechanism 140 to pass through when the position detector 150 detects that the tail of the bar has retracted into the second inlet end 171, and to control the loading roller conveyor 120 to feed the next bar into the first transition roller conveyor 130. The controller 160 is also used to control the unloading mechanism 190 to unload the bar from the unloading roller conveyor 180 when the position detector 150 detects that the tail of the bar has extended out of the second outlet end 172. In this way, as the previous bar completely leaves the straightening mechanism 140, the next bar is sent to the first transition roller conveyor 130 through the feeding roller conveyor 120, so as to ensure that the two bars will not appear in the straightening mechanism 140 at the same time, further preventing rear-end collision and jamming, improving straightening efficiency, shortening the straightening cycle, and being practical, reliable and safe.

[0034] In this embodiment, the length of the first transition roller conveyor 130 is equal to the length of the second transition roller conveyor 170. The lengths of the first transition roller conveyor 130 and the second transition roller conveyor 170 are equal to half the maximum length of the bar. The appropriate lengths of the first transition roller conveyor 130 and the second transition roller conveyor 170 need to be determined based on the actual production situation. Considering the need for a certain transition distance to ensure continuous feeding, this can effectively improve feeding efficiency. If the first transition roller conveyor 130 and the second transition roller conveyor 170 are too short, it will affect the continuity of feeding, potentially leading to overlapping conveying of two or more bars, causing equipment jamming or even damage. If the first transition roller conveyor 130 and the second transition roller conveyor 170 are too long, it will increase site costs, equipment costs, and energy costs. However, this is not the only limitation. In other embodiments, the lengths of the first transition roller conveyor 130 and the second transition roller conveyor 170 can be equal to 0.4 times or 0.6 times the maximum length of the bar. The specific lengths of the first transition roller conveyor 130 and the second transition roller conveyor 170 are not specifically limited.

[0035] The position detector 150 includes a first detector 151, a second detector 152, a third detector 153, a fourth detector 154, a fifth detector 155, and a sixth detector 156. The first detector 151 is mounted on the feeding roller conveyor 120. The controller 160 controls the feeding mechanism 110 to pause when the first detector 151 detects a bar on the feeding roller conveyor 120, preventing two bars from simultaneously appearing on the feeding roller conveyor 120. The second detector 152 is mounted on the first inlet end 131 and detects the bar passing through the first inlet end 131. The third detector 153 is mounted on the first outlet end 132 and detects the bar passing through the first outlet end 132. The fourth detector 154 is mounted on the second inlet end 171 and detects the bar passing through the second inlet end 171. The fifth detector 155 is mounted on the second outlet end 172 and detects the bar passing through the second outlet end 172. The sixth detector 156 is installed on the feeding roller conveyor 180. The controller 160 is used to control the entire machine to stop when the sixth detector 156 detects that there are bars on the feeding roller conveyor 180 and the head of the next bar extends out of the second outlet end 172. At this time, two bars appear on the feeding roller conveyor 180 at the same time. In order to avoid the situation of rear-end jamming, the machine needs to be stopped for inspection to prevent damage to the equipment.

[0036] It is worth noting that there are multiple first detectors 151, which are spaced apart along the feeding direction of the feeding roller conveyor 120 to improve detection accuracy. Specifically, since the lengths of the multiple bars are different, multiple first detectors 151 are spaced apart along the feeding direction of the feeding roller conveyor 120 to eliminate detection blind spots in order to improve detection sensitivity. If at least one of the multiple first detectors 151 detects a bar on the feeding roller conveyor 120, it is determined that there is material on the feeding roller conveyor 120. At this time, the controller 160 controls the feeding mechanism 110 to pause to prevent the feeding mechanism 110 from continuing to feed. In this embodiment, there are three first detectors 151, but it is not limited to this. In other embodiments, the number of first detectors 151 can be two or four. The number of first detectors 151 is not specifically limited.

[0037] Furthermore, there are multiple sixth detectors 156, which are spaced apart along the feeding direction of the feeding roller conveyor 180 to improve detection accuracy. Specifically, since the lengths of the multiple bars are different, multiple sixth detectors 156 are spaced apart along the feeding direction of the feeding roller conveyor 180 to eliminate detection blind spots in order to improve detection sensitivity. If at least one of the multiple sixth detectors 156 detects a bar on the feeding roller conveyor 180, it is determined that there is material on the feeding roller conveyor 180. At this time, if the fifth detector 155 detects that the head of the next bar extends out of the second exit end 172, the controller 160 controls the entire machine to stop to prevent rear-end jamming. In this embodiment, there are two sixth detectors 156, but it is not limited to this. In other embodiments, the number of sixth detectors 156 can be three or four, and the number of sixth detectors 156 is not specifically limited.

[0038] In this embodiment, the first detector 151, the second detector 152 and the third detector 153 are all grating detection elements. This is because the bar before straightening has a certain degree of bending. Using a wide-amplitude grating can completely cover the positional changes caused by bending of the bar, thereby improving the detection accuracy.

[0039] In this embodiment, both the fourth detector 154 and the sixth detector 156 are proximity switch detection elements. This is because the straightness of the bar after straightening is high, which can meet the detection range requirements of the proximity switch detection element. The proximity switch detection element occupies little space and does not need to be configured in pairs. It will not affect the feeding mechanism 190 feeding material to either side of the feeding roller 180, which is convenient and practical.

[0040] In this embodiment, the fifth detector 155 is a grating detection element, which is used to more accurately determine the head and tail of the bar, and is compatible with a range of bar sizes. Furthermore, it is located outside the feeding roller conveyor 180 and will not affect the feeding mechanism 190 feeding material to either side of the feeding roller conveyor 180.

[0041] This invention also provides a control method for a straightening device, comprising the following steps:

[0042] Step S110: The bar stock is fed to the feeding roller conveyor 120 using the feeding mechanism 110, and then fed to the first transition roller conveyor 130 using the feeding roller conveyor 120.

[0043] It should be noted that in step S110, after the feeding mechanism 110 sends the bar to the feeding roller conveyor 120, the first detector 151 will always detect that there is a bar on the feeding roller conveyor 120. At this time, the controller 160 controls the feeding mechanism 110 to remain in a paused state to prevent two bars from appearing on the feeding roller conveyor 120 at the same time.

[0044] Step S120: The bar is fed towards the straightening mechanism 140 using the first transition roller conveyor 130.

[0045] It should be noted that in step S120, the bar is fed in using the first transition roller conveyor 130 so that the bar passes through the first inlet end 131 and the first outlet end 132 in sequence.

[0046] Step S130: When the head of the bar extends out of the first outlet end 132, the straightening mechanism 140 is controlled to straighten the bar; when the tail of the bar retracts into the first inlet end 131, the feeding mechanism 110 is controlled to send the next bar to the feeding roller conveyor 120.

[0047] It should be noted that in step S130, when the third detector 153 detects that the head of the bar extends out of the first outlet end 132, it indicates that the bar will soon enter the straightening mechanism 140. At this time, the controller 160 controls the straightening mechanism 140 to start the straightening mode to begin straightening the bar. When the second detector 152 detects that the tail of the bar retracts into the first inlet end 131, it indicates that the bar has completely left the feeding roller conveyor 120. At this time, the controller 160 controls the feeding mechanism 110 to feed the next bar.

[0048] Step S140: The bar stock straightened by the straightening mechanism 140 is fed to the unloading roller conveyor 180 using the second transition roller conveyor 170.

[0049] It should be noted that in step S140, the bar is fed in using the second transition roller 170 so that the bar passes through the second inlet end 171 and the second outlet end 172 in sequence.

[0050] Step S150: When the tail of the bar retracts into the second inlet end 171, the straightening mechanism 140 is controlled to pass through, and the feeding roller conveyor 120 is controlled to feed the next bar into the first transition roller conveyor 130; when the tail of the bar extends out of the second outlet end 172, the unloading mechanism 190 is controlled to unload the bar from the unloading roller conveyor 180.

[0051] It should be noted that in step S150, when the fourth detector 154 detects that the tail of the bar has retracted into the second inlet end 171, it indicates that the bar has been straightened. At this time, the controller 160 controls the straightening mechanism 140 to start the empty pass mode and controls the feeding roller conveyor 120 to send the next bar into the first transition roller conveyor 130. When the fifth detector 155 detects that the tail of the bar has extended out of the second outlet end 172, it indicates that the bar has completely reached the unloading roller conveyor 180. At this time, the controller 160 controls the unloading mechanism 190 to unload the bar. This cycle is repeated to achieve sequential straightening of multiple bars, improving straightening efficiency and shortening the straightening cycle while ensuring that no tail-end jamming occurs.

[0052] The straightening device 100 provided in this embodiment of the invention includes a feeding roller conveyor 120 connected to a straightening mechanism 140 via a first transition roller conveyor 130. The feeding directions of the feeding roller conveyor 120 and the first transition roller conveyor 130 are the same, and both are used to convey bars. The straightening mechanism 140 is used to straighten the bars. The position of the feeding mechanism 110 corresponds to the position of the feeding roller conveyor 120, and the feeding mechanism 110 is used to feed the bars to the feeding roller conveyor 120. A position detector 150 is electrically connected to a controller 160, and the position detector 150 is used to detect the position data of the bars and... The data is sent to the controller 160, which is electrically connected to the feeding mechanism 110, the feeding roller conveyor 120, the first transition roller conveyor 130, and the straightening mechanism 140. The first transition roller conveyor 130 has a first inlet end 131 and a first outlet end 132 opposite to each other. The controller 160 controls the straightening mechanism 140 to perform straightening operations when the position detector 150 detects that the head of the bar extends out of the first outlet end 132. The controller 160 is also used to control the feeding mechanism 110 to send the next bar to the feeding roller conveyor 120 when the position detector 150 detects that the tail of the bar retracts into the first inlet end 131. Compared with the prior art, the straightening device 100 provided by the present invention, due to the use of the first transition roller conveyor 130 disposed between the feeding roller conveyor 120 and the straightening mechanism 140 and the position detector 150 electrically connected to the controller 160, can improve straightening efficiency and shorten the straightening cycle while ensuring that no rear-end collision or jamming occurs. It is practical, reliable, and safe. This makes the control method of the straightening device simple and the straightening efficiency high.

[0053] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A straightening device, characterized in that, The device includes a feeding mechanism, a feeding roller conveyor, a first transition roller conveyor, a straightening mechanism, a position detector, and a controller. The feeding roller conveyor is connected to the straightening mechanism via the first transition roller conveyor. The feeding direction of the feeding roller conveyor and the first transition roller conveyor is the same. Both the feeding roller conveyor and the first transition roller conveyor are used to transport bars. The straightening mechanism is used to straighten the bars. The position of the feeding mechanism corresponds to the position of the feeding roller conveyor. The feeding mechanism is used to feed the bars to the feeding roller conveyor. The position detector is electrically connected to the controller. The position detector is used to detect the position data of the bars and send it to the controller. The controller is also electrically connected to the feeding mechanism, the feeding roller conveyor, the first transition roller conveyor, and the straightening mechanism. The first transition roller conveyor has a first inlet end and a first outlet end opposite to each other. The controller is used to control the straightening mechanism to perform a straightening operation when the position detector detects that the head of the bar extends out of the first outlet end. The controller is also used to control the feeding mechanism to feed the next bar to the feeding roller conveyor when the position detector detects that the tail of the bar retracts into the first inlet end. The straightening device further includes a second transition roller conveyor, a discharge roller conveyor, and a discharge mechanism. The straightening mechanism is connected to the discharge roller conveyor via the second transition roller conveyor. The discharge roller conveyor and the second transition roller conveyor have the same feeding direction. Both the discharge roller conveyor and the second transition roller conveyor are used to transport bars. The position of the discharge mechanism corresponds to the position of the discharge roller conveyor. The discharge mechanism is used to unload the bars from the discharge roller conveyor. The controller is electrically connected to the second transition roller conveyor, the discharge roller conveyor, and the discharge mechanism. The second transition roller conveyor has a second inlet end and a second outlet end arranged opposite to each other. The controller is used to control the straightening mechanism to skip when the position detector detects that the tail of the bar has retracted into the second inlet end, and to control the feeding roller conveyor to feed the next bar into the first transition roller conveyor. The controller is also used to control the discharge mechanism to unload the bar from the discharge roller conveyor when the position detector detects that the tail of the bar has extended out of the second outlet end.

2. The straightening device according to claim 1, characterized in that, The length of the first transition roller is equal to half the maximum length of the bar.

3. The straightening device according to claim 1, characterized in that, The position detector includes a first detector, a second detector, and a third detector. The first detector is installed on the feeding roller conveyor. The controller is used to control the feeding mechanism to pause when the first detector detects that there are bars on the feeding roller conveyor. The second detector is installed at the first inlet end, and the third detector is installed at the first outlet end.

4. The straightening device according to claim 3, characterized in that, The number of the first detectors is multiple, and the multiple first detectors are arranged at intervals along the feeding direction of the feeding roller conveyor.

5. The straightening device according to claim 3, characterized in that, The first detector, the second detector, and the third detector are all grating detection elements.

6. The straightening device according to claim 1, characterized in that, The position detector includes a fourth detector, a fifth detector, and a sixth detector. The fourth detector is installed at the second inlet end, the fifth detector is installed at the second outlet end, and the sixth detector is installed on the feeding roller conveyor. The controller is used to control the entire machine to stop when the sixth detector detects that there is a bar on the feeding roller conveyor and the head of the next bar extends out of the second outlet end.

7. The straightening device according to claim 6, characterized in that, The fourth and sixth detectors are both proximity switch detection elements, and the fifth detector is a grating detection element.

8. A control method for a straightening device, characterized in that, A method for controlling the straightening device as described in any one of claims 1 to 7, wherein the method for controlling the straightening device comprises: The feeding mechanism is used to feed the bar stock to the feeding roller conveyor, and the feeding roller conveyor is used to feed the bar stock to the first transition roller conveyor; The bar is fed towards the straightening mechanism using the first transition roller conveyor. When the head of the bar extends out of the first outlet end, the straightening mechanism is controlled to straighten the bar; when the tail of the bar retracts into the first inlet end, the feeding mechanism is controlled to send the next bar to the feeding roller conveyor.

9. The control method for the straightening device according to claim 8, characterized in that, The control method for the straightening device further includes: The bar stock, straightened by the straightening mechanism, is fed to the unloading roller conveyor using the second transition roller conveyor. When the tail of the bar retracts into the second inlet end, the straightening mechanism is controlled to pass through, and the feeding roller conveyor is controlled to feed the next bar into the first transition roller conveyor; when the tail of the bar extends out of the second outlet end, the unloading mechanism is controlled to unload the bar from the unloading roller conveyor.

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