Feeding frame system, laser pipe cutting machine and control method

Abstract

The embodiment of the invention provides a feeding frame system, a laser pipe cutting machine and a control method, and relates to the technical field of feeding frames, the feeding frame system comprises a material frame, a material limiting module, a feeding mechanism, a material pressing mechanism, a material blocking mechanism and a feeding mechanism; the material frame is used for containing pipes and provided with a material channel. The material limiting module is installed on the material frame and used for changing the size of the material channel. The feeding mechanism is used for transferring the pipes located on the material frame to the material channel. The material pressing mechanism is installed on the material frame, and the material pressing mechanism and the supporting face of the material channel are oppositely arranged. The material blocking mechanism is arranged on one side of the material pressing mechanism, and the material blocking mechanism is used for blocking the pipes in the material channel; the feeding mechanism is arranged at the lower end of the material channel and used for transferring the pipes to a material preparing area. According to the feeding frame system, the feeding efficiency can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of loading racks, and particularly to a loading rack system, a laser pipe cutting machine and a control method thereof. Background Art

[0002] In the related art, a laser pipe cutting machine includes a loading rack system, a laser source, an optical system, a control system, a workbench and an auxiliary gas system. The laser pipe cutting machine controls the parameters and path of the laser beam, focuses the high-energy laser beam on the material, and melts, vaporizes or burns the material under the action of the laser beam, so as to realize the cutting of the pipe. The laser pipe cutting equipment has the characteristics of high precision and high efficiency, and can realize fine cutting.

[0003] Among them, after the loading rack system transports a pipe to the cutting station, it is necessary to wait for the cutting of this pipe to be completed before transporting the next pipe, which greatly affects the cutting efficiency. Summary of the Invention

[0004] The present application aims to at least solve one of the technical problems existing in the prior art. For this purpose, the present application provides a loading rack system, a laser pipe cutting machine and a control method thereof, which can improve the loading efficiency to ensure the cutting efficiency.

[0005] An embodiment of the first aspect of the present application discloses a loading rack system, including a rack, a material limiting module, a loading mechanism, a pressing mechanism, a blocking mechanism and a feeding mechanism;

[0006] The rack is used for placing pipes, and the rack has a material channel;

[0007] The material limiting module is installed on the rack, and the material limiting module is used to change the size of the material channel;

[0008] The loading mechanism is used to transfer the pipes located on the rack to the material channel;

[0009] The pressing mechanism is installed on the rack, and the pressing mechanism is arranged opposite to the supporting surface of the material channel;

[0010] A blocking mechanism, the blocking mechanism is arranged on one side of the pressing mechanism, and the blocking mechanism is used to block the pipes in the material channel;

[0011] The feeding mechanism is arranged at the lower end of the material channel, and the feeding mechanism is used to transfer the pipes to the stock preparation area.

[0012] Further, it further includes a centering mechanism, the centering mechanism is arranged on one side of the rack, and the centering mechanism is used to change the lateral position of the pipes in the stock preparation area.

[0013] Further, it further includes a variable-diameter support wheel, which is arranged below the stock preparation area and is used to support the pipe.

[0014] An embodiment of the second aspect of the present application provides a control method for a loading rack system, which is applied to the loading rack system as described above. The control method includes the following steps:

[0015] Place the pipe on the rack;

[0016] Set the size parameters and the loading quantity of the pipe in the PLC controller;

[0017] The PLC controller controls the material limiting module to act to adjust the gap between the material limiting module and the support surface of the material channel, so that the gap between the material limiting module and the material channel can only pass through one pipe;

[0018] The PLC controller controls the loading mechanism to execute the loading program to convey the pipe onto the material channel;

[0019] The PLC controller controls the pressing mechanism, the blocking mechanism and the feeding mechanism to act to convey the pipe to the stock preparation area.

[0020] Further, the material limiting module includes a telescopic mechanism and a limiting block. The limiting block is connected to the output end of the telescopic mechanism. The height of the pipe is h, and the distance between the limiting block and the support surface of the material channel is H. The step of the PLC controller controlling the material limiting module to act includes: the PLC controller controls the telescopic mechanism to expand and contract to change the position of the limiting block, so that H is adjusted to be greater than or equal to h and satisfies H less than 2h.

[0021] Further, the step of the PLC controller controlling the pressing mechanism, the blocking mechanism and the feeding mechanism to act includes: the PLC controller controls the pressing block of the pressing mechanism to move away from the support surface of the material channel, so that one pipe on the material channel moves to the blocking mechanism; the PLC controller controls the pressing mechanism to move towards the side close to the support surface of the material channel to limit the subsequent pipes from moving to the blocking mechanism; the PLC controller controls the blocking mechanism to act to release the pipe blocked by the blocking mechanism.

[0022] Further, the step of the PLC controller controlling the actions of the material pressing mechanism, the material blocking mechanism, and the material feeding mechanism includes: selecting a stock preparation mode, where the stock preparation mode includes a first stock preparation mode and a second stock preparation mode; when the stock preparation mode is the first stock preparation mode, after the PLC controller receives a feeding request, the PLC controller controls the material blocking mechanism to act to release the pipe blocked by the material blocking mechanism; when the stock preparation mode is the second stock preparation mode, after the PLC controller receives a feeding request, the PLC controller controls the material blocking mechanism to act to move the pipe onto the material feeding mechanism, and then the PLC controller controls the material feeding mechanism to act, and the material feeding mechanism transfers the pipe to the stock preparation area.

[0023] Further, the control method includes: using the PLC controller to increase the width limit between the blocking rod of the material blocking mechanism and the pressing block of the material pressing mechanism, and then gradually decreasing the width limit until the position between the blocking rod and the pressing block can only accommodate one pipe; then setting the coordinate of the material blocking mechanism at this time as the zero coordinate.

[0024] Further, the step of the PLC controller executing the feeding program includes: selecting a feeding mode, where the feeding mode includes a first feeding mode and a second feeding mode; when the feeding mode is the first mode, the PLC controller controls the feeding mechanism to directly convey the pipe into the material channel; when the feeding mode is the second mode, obtaining the number of pipes in the material channel, and when the number of pipes in the material channel is less than or equal to a first threshold, the PLC controller controls the feeding mechanism to execute the feeding program; when the number of pipes in the material channel is equal to a second threshold, the PLC controller controls the feeding mechanism to stop feeding.

[0025] An embodiment of the third aspect of the present application provides a laser pipe cutting machine, including the loading rack system as described above.

[0026] It can be seen from the above technical solutions that the embodiments of the present application have at least the following beneficial effects:

[0027] In the loading rack system, laser pipe cutting machine, and control method provided by the embodiments of the present application, during loading, automatic loading is realized through the loading rack system, which can improve the loading efficiency and contribute to improving the cutting efficiency. At the same time, the loading rack system can transfer the next pipe to the stock preparation area while the current pipe is being cut to wait for cutting, which is beneficial to shortening the waiting time for loading and thus improving the loading efficiency. Description of the Drawings

[0028] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0029] Figure 1 It is a top view structural schematic diagram of a laser pipe cutting machine according to an embodiment of the present application;

[0030] Figure 2 It is a top view schematic diagram of a loading rack system according to an embodiment of the present application;

[0031] Figure 3 It is a right view schematic diagram of a loading rack system according to an embodiment of the present application;

[0032] Figure 4 It is a flowchart schematic diagram of a control method provided by an embodiment of the present application.

[0033] Reference numerals:

[0034] 110, loading rack; 111, material channel; 1111, support surface; 120, material limiting module; 130, feeding mechanism; 131, feeding claw; 132, telescopic cylinder; 140, centering mechanism; 150, variable diameter support wheel; 160, tail chuck. Detailed implementation manners

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0036] See Figures 1 to 3 , an embodiment of the first aspect of the present application discloses a loading rack system, including a loading rack, a material limiting module 120, a loading mechanism, a pressing mechanism, a material blocking mechanism, and a feeding mechanism 130.

[0037] The loading rack 110 is used for placing pipes, and the loading rack 110 has a material channel 111;

[0038] The material limiting module 120 is installed on the loading rack 110, and the material limiting module 120 can change the distance from the support surface 1111 of the material channel 111;

[0039] The loading mechanism is used to transfer the pipes on the loading rack 110 to the material channel 111;

[0040] The blanking mechanism is installed on the material rack 110, and the blanking mechanism is disposed opposite to the bottom surface of the material passage 111. The blanking mechanism can move toward or away from the support surface 1111 of the material passage 111;

[0041] The stop mechanism is disposed on one side of the blanking mechanism, and the stop mechanism is used to stop the pipe in the material passage 111;

[0042] The feeding mechanism 130 is disposed at the lower end of the material passage 111, and the feeding mechanism 130 is used to transfer the pipe to the stock preparation area.

[0043] Specifically, when it is necessary to convey the pipe from the material rack 110 to the stock preparation area, the loading mechanism operates to convey the pipe located on the material rack 110 to the material passage 111; the material limiting module 120 changes the interval between the support surface 1111 of the material passage 111 to change the size of the gap between the material passage 111 and the material limiting module 120, so that only one pipe is allowed to pass through the material passage 111 at a time; the stop mechanism can stop the pipe passing through the material passage 111 so that the pipe stays on the material passage 111; when the stop mechanism cancels the stopping effect on the pipe, the pipe can slide down along the material passage 111 onto the feeding mechanism 130, and the feeding mechanism 130 can transfer the pipe to the stock preparation area to wait for cutting.

[0044] In a possible implementation manner, the feeding mechanism 130 includes a feeding claw 131 and a telescopic cylinder 132. The feeding claw 131 is used to support the pipe. Among them, the feeding claw 131 is connected to the output end of the telescopic cylinder 132. The telescopic cylinder 132 is installed on the material rack 110, and the telescopic cylinder 132 drives the feeding claw 131 to move through telescoping, so as to drive the pipe located on the feeding claw 131 to move to the stock preparation area.

[0045] In this embodiment, the material passage 111 is inclined. When the blanking mechanism and the stop mechanism do not interfere with the movement of the pipe, the pipe on the material passage 111 can slide down by relying on the power.

[0046] In some embodiments of the present application, the stop mechanism includes a stop rod that protrudes from the support surface 1111 of the material passage. The stop rod is used to stop the pipe to prevent the pipe from directly sliding down from the material passage 111 onto the feeding mechanism 130. Among them, when it is necessary to cancel the stopping effect of the stop mechanism on the pipe, the stop rod can leave the support surface 1111 of the material passage 111 by rotating, moving, etc., so that the stopped pipe slides down from the material passage 111.

[0047] Furthermore, the stop mechanism includes a material detection module, and the material detection module is used to detect whether there is a pipe at the stop rod.

[0048] In some embodiments of the present application, the loading rack system includes a centering mechanism 140. The centering mechanism 140 is disposed on one side of the rack 110 and is used to change the lateral position of the pipe in the stock preparation area. Specifically, the centering mechanism 140 includes a lifting support rod and two push rods that can approach each other. The lifting support rod is disposed below the stock preparation area. By rising, the lifting support rod can lift the pipe located on the feeding claw 131, and then the two push rods approach each other towards the middle to push the pipe to move until both sides of the pipe are respectively abutted against the two push rods, thereby achieving centering.

[0049] Furthermore, the loading rack system further includes a variable-diameter support wheel 150. The variable-diameter support wheel 150 is disposed below the stock preparation area and is used to support the pipe. Specifically, after the centering mechanism 140 centers the pipe, the centering mechanism 140 descends so that the pipe falls on the variable-diameter support wheel 150.

[0050] See Figure 4 , embodiments of the second aspect of the present application disclose a control method for a loading rack system, which is applied to the loading rack system as described above. The control method includes the following steps:

[0051] Place the pipe on the rack 110;

[0052] Set the size parameters and the loading quantity of the pipe in the PLC controller;

[0053] The PLC controller controls the material limiting module 120 to act to adjust the gap between the material limiting module 120 and the support surface 1111 of the material channel 111 so that the gap between the material limiting module 120 and the material channel 111 can only pass through one pipe;

[0054] The PLC controller controls the feeding mechanism to execute the feeding program to convey the pipe onto the material channel 111;

[0055] The PLC controller controls the pressing mechanism, the blocking mechanism, and the feeding mechanism 130 to act to convey the pipe to the stock preparation area.

[0056] Among them, the size parameters include the cross-sectional profile size of the pipe, etc. Exemplarily, when the cross-section of the pipe is rectangular, the size parameters include the length and width of the cross-section of the pipe.

[0057] Further, the material limiting module 120 includes a telescopic mechanism and a limiting block. The limiting block is connected to the output end of the telescopic mechanism. The height of the pipe is h, and the distance between the limiting block and the supporting surface 1111 of the material channel 111 is H. The step of the PLC controller controlling the operation of the material limiting module 120 includes: the PLC controller controlling the telescopic movement of the telescopic mechanism to change the position of the limiting block, so that H is adjusted to be greater than or equal to h and satisfies H less than 2h. In this way, the gap between the material limiting module 120 and the material channel 111 can only pass one pipe at a time.

[0058] Further, the step of the PLC controller controlling the pressing mechanism, the blocking mechanism and the feeding mechanism 130 to operate includes: the PLC controller controlling the pressing block of the pressing mechanism to move away from the supporting surface 1111 of the material channel 111, so that one pipe on the material channel 111 moves to the blocking mechanism; the PLC controller controlling the pressing mechanism to move towards the side close to the supporting surface 1111 of the material channel 111 to limit the movement of the pipes below and subsequent to the pressing block to the blocking mechanism; the PLC controller controlling the blocking mechanism to operate to release the pipe blocked by the blocking mechanism. Thus, it can be realized that only one pipe passes through the material channel 111 at a time.

[0059] In the above embodiment, the blocking mechanism includes a material detection module. The material detection module is electrically connected to the PLC controller, and the material detection module is used to detect whether there is a pipe at the blocking mechanism. When the PLC controller receives a feeding request, the PLC controller controls the pressing mechanism and the blocking mechanism to operate according to the detection result of the material detection module.

[0060] Specifically, when the material detection module detects that there is a pipe at the blocking mechanism, the PLC controller controls the blocking mechanism to release the pipe for stock preparation; when the material detection module detects that there is no pipe at the blocking mechanism, the PLC controller detects whether there is a pipe at the material channel. When there is a pipe stored at the material channel, the PLC controller controls the blocking mechanism to be in a blocking state and controls the pressing mechanism to move towards the side away from the supporting surface of the material channel, so that the pipe slides to the blocking mechanism. Then the PLC controller controls the pressing mechanism to move towards the side close to the supporting surface of the material channel to press the pipe below the pressing mechanism and limit the movement of the pipe on the side of the pressing mechanism away from the blocking mechanism. When there is no pipe stored at the material channel, the PLC controller controls the feeding mechanism to execute the feeding program, and then controls the pressing mechanism and the blocking mechanism according to the foregoing steps, so that one pipe is temporarily stored at the blocking mechanism.

[0061] It is understood that a detection sensor is provided at the material channel. The detection sensor is electrically connected to the PLC controller, and the detection sensor is used to detect the number of pipes in the material channel.

[0062] In some embodiments, the step of the PLC controller controlling the material pressing mechanism, the material blocking mechanism, and the material feeding mechanism 130 to act includes: selecting a stock preparation mode, where the stock preparation mode includes a first stock preparation mode and a second stock preparation mode; when the stock preparation mode is the first stock preparation mode, when the PLC controller receives a feeding request, the PLC controller controls the material blocking mechanism to act to release the pipe blocked by the material blocking mechanism. At this time, the pipe directly slides down to the stock preparation area; when the stock preparation mode is the second stock preparation mode, after the PLC controller receives a feeding request, the PLC controller controls the material blocking mechanism to act to move the pipe onto the material feeding mechanism 130; then the PLC controller controls the material feeding mechanism 130 to act, and the material feeding mechanism 130 transfers the pipe to the stock preparation area.

[0063] In the above embodiments, when the stock preparation mode is selected as the first stock preparation mode, after the PLC controller receives a feeding request, the pipe located in the material blocking mechanism can directly slide down to the stock preparation area, which can shorten the stock preparation time and improve the feeding efficiency; when the stock preparation mode is selected as the second stock preparation mode, the pipe blocked by the material blocking mechanism first falls onto the material feeding mechanism 130, and then the material feeding mechanism 130 acts to transport the pipe to the stock preparation area.

[0064] Further, the step of the PLC controller controlling the material pressing mechanism, the material blocking mechanism, and the material feeding mechanism 130 to act includes: increasing the width limit between the blocking rod of the material blocking mechanism and the pressing block of the material pressing mechanism through the PLC controller, and then gradually decreasing the width limit until the position between the blocking rod and the pressing block can exactly accommodate one pipe; then setting the coordinate of the material blocking mechanism at this time as the zero coordinate. This can prevent two or more pipes from sliding down to the position between the material blocking mechanism and the material pressing mechanism at the same time. In this way, the purpose of preparing only one pipe at a time can be achieved.

[0065] It should be understood that the width limit between the blocking rod and the pressing block of the material pressing mechanism refers to the distance between the blocking rod and the pressing block. Since the position between the blocking rod and the pressing block of the material pressing mechanism is used to temporarily store the pipes sliding down from the material channel 111. Thus, when the pressing block of the material pressing mechanism moves towards the support surface 1111 away from the material channel 111, only one pipe can slide down from under the pressing block to one side of the blocking rod. As the material pressing mechanism moves towards the support surface 1111 close to the material channel 111 again, the pressing block can press the pipe located under the pressing block to prevent the pipe under the pressing block from sliding down to the stock preparation area, and at the same time, can restrict the subsequent pipes to the side of the pressing block away from the blocking rod.

[0066] In this embodiment, the material pressing mechanism includes a cylinder and a pressing block. The cylinder is installed above the material channel 111, and the pressing block is connected to the output end of the cylinder. The cylinder drives the pressing block to move through its action, so that the pressing block moves towards the support surface 1111 close to or away from the material channel 111.

[0067] Further, the PLC controller executes the step of the feeding program, including: selecting a feeding mode, where the feeding mode includes a first feeding mode and a second feeding mode; when the feeding mode is the first mode, the PLC controller controls the feeding mechanism to directly convey the pipe material into the material channel 111; when the feeding mode is the second mode, obtain the number of pipes in the material channel 111, and when the number of pipes in the material channel 111 is less than or equal to the first threshold, the PLC controller controls the feeding mechanism to execute the feeding program; when the number of pipes in the material channel 111 is equal to the second threshold, the PLC controller controls the feeding mechanism to stop feeding.

[0068] In the above embodiment, when the feeding mode is the first feeding mode, the feeding mechanism continuously conveys the pipe material from the material rack 110 to the material channel 111 to ensure sufficient supply of pipes; when the feeding mode is the second feeding mode, by first obtaining the number of pipes in the material channel 111, it is determined whether it is necessary to immediately supply pipes to the material channel 111. In this way, the feeding mechanism can supply materials intermittently.

[0069] It should be noted that the first threshold can specifically be zero or other natural numbers greater than zero; the second threshold is greater than the first threshold.

[0070] Exemplarily, in a possible implementation manner, the first threshold is set to 0 and the second threshold is set to 3. When it is detected that the number of pipes on the material channel 111 is less than 3, the PLC controller controls the feeding mechanism to execute the feeding program, and the feeding mechanism responds to the PLC controller's instruction to supply pipes into the material channel 111 until the number of pipes on the material channel 111 is equal to 3, and then the feeding mechanism stops feeding the material channel 111.

[0071] In one embodiment, the feeding rack system includes a centering mechanism 140. After the feeding mechanism 130 sends the pipe material to the preparation area, the PLC controller controls the centering mechanism 140 to act to adjust the lateral position of the pipe material in the preparation area.

[0072] See Figure 1 This application's third aspect of the embodiment discloses a laser pipe cutting machine, including the feeding rack system as described above, having all the technical effects of the foregoing feeding rack system, which will not be elaborated here.

[0073] In a specific embodiment, the laser pipe cutting machine includes a loading rack system, a pipe cutting machine tool, and a PLC controller. After receiving a loading request, the PLC controller controls the pipe cutting machine tool to move to the initial position and controls the jaws to open. Subsequently, it detects the material blocking mechanism to ensure that there is a pipe at the material blocking mechanism, and then controls the material blocking mechanism to release the pipe, so that the pipe slides onto the feeding claws 131 of the feeding mechanism 130. Subsequently, the PLC controller controls the telescopic cylinder 132 of the feeding mechanism 130 to act to transfer the pipe to the stock preparation area. After the pipe is transferred to the stock preparation area, the PLC controller controls the centering mechanism 140 to rise to lift the pipe located in the stock preparation area, so that the pipe is separated from the feeding claws 131 of the feeding mechanism 130. Then the PLC controller controls the centering mechanism 140 to perform a centering action to move the pipe to a preset position. Subsequently, the PLC controller controls the variable diameter support wheel 150 to rise and controls the centering mechanism 140 to descend, so that the centered pipe falls onto the variable diameter support wheel 150. Subsequently, the PLC controller controls the tail chuck 160 to clamp the pipe and drive the pipe to move along its own axial direction. Among them, Figure 1 In the figure, the X direction is the axial direction of the pipe.

[0074] In the above embodiment, after the centering mechanism 140 lifts the pipe sent by the feeding mechanism 130 to the stock preparation area, the PLC controller controls the feeding mechanism 130 to act so that the feeding mechanism 130 returns to the initial position, thus avoiding interference of the feeding mechanism 130 with subsequent processes.

[0075] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present application.

[0076] The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise stated, the meaning of "a plurality" is two or more.

[0077] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" 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 directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0078] In the description of this specification, specific features, structures, materials, or characteristics can be combined in a suitable manner in any one or more embodiments or examples.

[0079] It should be understood that although the steps in the flowchart of the accompanying drawings are shown sequentially according to the indication of the arrows, these steps are not necessarily executed sequentially according to the order indicated by the arrows. Unless otherwise clearly stated in this document, the execution of these steps has no strict order limitation, and they can be executed in other orders. Moreover, at least a part of the steps in the flowchart of the accompanying drawings can include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily executed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be executed alternately or in turn with at least a part of other steps or sub-steps or stages of other steps.

Claims

1. A loading rack system, characterized in that, It includes a material rack, a material limiting module, a loading mechanism, a material pressing mechanism, a material blocking mechanism and a feeding mechanism; The material rack is used for placing pipes, and the material rack has a material channel; The material limiting module is installed on the material rack, and the material limiting module can change the distance between the supporting surface of the material channel; The loading mechanism is used for transferring the pipes on the material rack to the material channel; The material pressing mechanism is installed on the material rack, and the material pressing mechanism is arranged opposite to the supporting surface of the material channel, and the material pressing mechanism can move towards or away from the supporting surface of the material channel; A material blocking mechanism, the material blocking mechanism is arranged on one side of the material pressing mechanism, and the material blocking mechanism is used for blocking the pipes in the material channel; The feeding mechanism is arranged at the lower end of the material channel, and the feeding mechanism is used for transferring the pipes to the stock preparation area.

2. The loading rack system according to claim 1, characterized in that, It further includes a centering mechanism, the centering mechanism is arranged on one side of the material rack, and the centering mechanism is used for changing the lateral position of the pipes in the stock preparation area.

3. The loading rack system according to claim 2, characterized in that, It further includes a variable diameter support wheel, the variable diameter support wheel is arranged below the stock preparation area, and the variable diameter support wheel is used for supporting the pipes.

4. A control method for a loading rack system, characterized in that, Applied to the loading rack system according to any one of claims 1 to 3, the control method includes the following steps: Place the pipes on the material rack; Set the size parameters and loading quantity of the pipes in the PLC controller; The PLC controller controls the material limiting module to act to adjust the gap between the material limiting module and the supporting surface of the material channel so that the gap between the material limiting module and the material channel can only pass one pipe; The PLC controller makes the loading mechanism execute the loading program to convey the pipes onto the material channel; The PLC controller controls the material pressing mechanism, the material blocking mechanism and the feeding mechanism to act to convey the pipes to the stock preparation area.

5. The control method according to claim 4, wherein The material limiting module includes a telescopic mechanism and a limiting block, the limiting block is connected to the output end of the telescopic mechanism, the height of the pipe is h, and the distance between the limiting block and the supporting surface of the material channel is H. The step of the PLC controller controlling the material limiting module to act includes: the PLC controller controls the telescopic mechanism to stretch to change the position of the limiting block so that H is adjusted to be greater than or equal to h and satisfies H less than 2h.

6. The control method according to claim 4, wherein The step of the PLC controller controlling the material pressing mechanism, the material blocking mechanism and the feeding mechanism to act includes: the PLC controller controls the pressing block of the material pressing mechanism to move away from the supporting surface of the material channel so that one pipe on the material channel moves onto the material blocking mechanism; the PLC controller controls the material pressing mechanism to move towards the side close to the supporting surface of the material channel to limit the movement of the pipes below and subsequent to the pressing block onto the material blocking mechanism; the PLC controller controls the material blocking mechanism to act to release the pipes blocked by the material blocking mechanism.

7. The control method according to claim 4, characterized in that, The step of the PLC controller controlling the material pressing mechanism, the material blocking mechanism and the material feeding mechanism includes: selecting a stock preparation mode, where the stock preparation mode includes a first stock preparation mode and a second stock preparation mode; when the stock preparation mode is the first stock preparation mode, after the PLC controller receives a feeding request, the PLC controller controls the material blocking mechanism to act to release the pipe blocked by the material blocking mechanism; when the stock preparation mode is the second stock preparation mode, after the PLC controller receives a feeding request, the PLC controller controls the material blocking mechanism to act to move the pipe onto the material feeding mechanism; the PLC controller controls the material feeding mechanism to act, and the material feeding mechanism transfers the pipe to the stock preparation area.

8. The control method according to claim 4, wherein The step of the PLC controller controlling the material pressing mechanism, the material blocking mechanism and the material feeding mechanism includes: increasing the width limit between the blocking rod of the material blocking mechanism and the pressing block of the material pressing mechanism through the PLC controller, and then gradually decreasing the width limit until the position between the blocking rod and the pressing block can only accommodate one pipe; setting the coordinate of the material blocking mechanism at this time as the zero coordinate.

9. The control method according to claim 4, wherein The step of the PLC controller executing the feeding program includes: selecting a feeding mode, where the feeding mode includes a first feeding mode and a second feeding mode; when the feeding mode is the first mode, the PLC controller controls the feeding mechanism to directly convey the pipe into the material channel; when the feeding mode is the second mode, obtaining the number of pipes in the material channel, when the number of pipes in the material channel is less than or equal to a first threshold, the PLC controller controls the feeding mechanism to execute the feeding program; when the number of pipes in the material channel is equal to a second threshold, the PLC controller controls the feeding mechanism to stop feeding.

10. A laser pipe cutting machine, characterized in that, It includes the feeding rack system according to any one of claims 1 to 3.

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