Metal pipe automatic blanking synchronous linkage cutting and coding device and method

Abstract

The invention relates to the technical field of metal pipe machining, and discloses a metal pipe automatic discharging synchronous linkage cutting and coding device and method. The metal pipe automatic discharging synchronous linkage cutting and coding device comprises a controller, a feeding mechanism, a cutting mechanism, a coding machine and a discharging mechanism, the feeding mechanism, the cutting mechanism, the coding machine and the discharging mechanism are connected with the controller, the feeding mechanism, the cutting mechanism and the discharging mechanism are sequentially arranged in the conveying direction of metal pipes, and the coding machine is installed on the cutting mechanism. The feeding mechanism is used for conveying metal pipes to the cutting mechanism, the cutting mechanism is used for cutting the metal pipes, the coding machine is used for coding the metal pipes in the cutting process, and the discharging mechanism is used for transferring the cut and coded metal pipes out of the cutting mechanism. According to the automatic discharging synchronous linkage cutting and coding device for the metal pipes, automatic feeding, cutting, coding and discharging can be achieved, cutting and coding are synchronously linked, the machining efficiency of the metal pipes is effectively improved, and the production cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of metal pipe processing, and in particular to a device and method for automatic unloading, synchronous linkage cutting and coding of metal pipes. Background Art

[0002] Metal pipes have a wide range of applications, especially stainless steel pipes, which are mainly cut by cutting equipment (such as band saws). The current operation mode is that the operator first measures the outer wall of the metal pipe according to the required dimensions of the drawing and marks the cutting point, then moves it to the cutting equipment to cut along the line, and after cutting, moves it to the coding machine for corresponding information marking. All operations must be completed manually or with assistance.

[0003] The existing metal pipe cutting and coding processes have the problems of long overall time, high labor input, and relatively low overall efficiency, which has a great impact on the cycle time of the entire production process and cannot meet the growing demand for material volume. Summary of the invention

[0004] The purpose of the embodiments of the present invention is to provide a device for automatic unloading, synchronous linkage, cutting and coding of metal pipes and a method for automatic unloading, synchronous linkage, cutting and coding of metal pipes, which can effectively improve the processing efficiency of metal pipes.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] Provided is a metal pipe automatic unloading synchronous linkage cutting and coding device, comprising a controller and a feeding mechanism, a cutting mechanism, a coding machine and a unloading mechanism connected to the controller, wherein the feeding mechanism, the cutting mechanism and the unloading mechanism are sequentially arranged along the conveying direction of the metal pipe, the coding machine is installed on the cutting mechanism, the feeding mechanism is used to convey the metal pipe to the cutting mechanism, the cutting mechanism is used to cut the metal pipe, the coding machine is used to code the metal pipe in the cutting process, and the unloading mechanism is used to transfer the cut and coded metal pipe from the cutting mechanism.

[0007] As a further solution of the automatic unloading and synchronous linkage cutting and coding device for metal pipes, it also includes a vibration reduction mechanism, and the coding machine is connected to the cutting mechanism through the vibration reduction mechanism, and the vibration reduction mechanism can make the coding machine move up and down relative to the cutting mechanism.

[0008] As a further solution of the automatic unloading and synchronous linkage cutting and coding device for metal pipes, the cutting mechanism includes a first bracket and a band saw mounted on the first bracket, the band saw is connected to the controller, the vibration damping mechanism includes a vibration damping spring, a first base and a second base, the first base is fixed to the outer wall of the band saw, the vibration damping spring is mounted on the first base and connected to the second base, the length of the vibration damping spring extends in the vertical direction, the coding machine is mounted on the second base, and the coding machine can move up and down relative to the first base.

[0009] As a further solution of the automatic unloading and synchronous linkage cutting and coding device for metal pipes, the vibration reduction mechanism also includes a guide portion that guides in the vertical direction, and the second base is connected to the first base through the guide portion.

[0010] As a further solution of the automatic unloading and synchronous linkage cutting and coding device for metal pipes, the second base includes a vertical plate and a horizontal plate, the horizontal plate is vertically connected to the vertical plate, the horizontal plate is parallel to the first base, and the horizontal plate and the first base are located on the same side of the vertical plate, one end of the shock-absorbing spring is connected to the horizontal plate, and the other end is connected to the first base, the number of the shock-absorbing springs is two, the guide part includes two guide rods arranged at intervals, the length of the guide rods extends in the vertical direction, and a shock-absorbing spring is sleeved on the outer periphery of each guide rod, one of the horizontal plate and the first base is fixedly connected to the guide rod, and the other is allowed for the guide rod to pass through and can move along the length direction of the guide rod.

[0011] As a further solution of the automatic unloading and synchronous linkage cutting and coding device for metal pipes, the feeding mechanism includes a second bracket, a plurality of first rollers mounted on the second bracket, and a first driving unit, the plurality of first rollers are arranged at intervals along the conveying direction of the metal pipe, the axial direction of the first roller is perpendicular to the length direction of the metal pipe, the first driving unit is drivingly connected to at least one group of the first rollers, the second bracket is located at the metal pipe inlet side of the cutting mechanism, and the first driving unit is connected to the controller.

[0012] As a further solution of the metal pipe automatic unloading synchronous linkage cutting and coding device, the first driving part is drivingly connected to the first roller on the metal pipe outlet side adjacent to the cutting mechanism.

[0013] As a further solution of the automatic unloading and synchronous linkage cutting and coding device for metal pipes, the unloading mechanism includes a third bracket, a plurality of second rollers mounted on the third bracket, and a second driving unit, the plurality of second rollers are arranged at intervals along the conveying direction of the metal pipe, the axial direction of the second roller is perpendicular to the length direction of the metal pipe, the second driving unit is drivingly connected to at least one group of the second rollers, the third bracket is located on the metal pipe outlet side of the cutting mechanism, and the second driving unit is connected to the controller.

[0014] As a further solution of the device for automatically unloading and synchronously cutting and coding metal pipes, the second driving part is drivingly connected to the second roller on the metal pipe outlet side adjacent to the cutting mechanism.

[0015] On the other hand, a method for automatic unloading, synchronous linkage, cutting and coding of metal pipes is provided, and the method uses the automatic unloading, synchronous linkage, cutting and coding device of metal pipes, including the following steps:

[0016] S10, transporting the metal pipe to the feeding mechanism, and the controller controlling the feeding mechanism to deliver the metal pipe to a designated position in the cutting mechanism according to the cutting length of the metal pipe;

[0017] S20, the controller controls the cutting mechanism to cut the metal pipe and controls the coding machine to code the metal pipe being cut;

[0018] S30, the controller drives the unloading mechanism to move the metal pipe that has been cut and coded out of the cutting mechanism, and returns to step S10.

[0019] Beneficial effects:

[0020] (1) The original metal pipe cutting and metal pipe coding processes require a lot of manpower. One operator is needed to mark the cutting points of the metal pipe, one operator is needed to operate the cutting band saw, and one operator is needed to code the metal pipe. After using the metal pipe automatic cutting and coding device of the present invention, only one operator is needed to operate the device, which greatly reduces the manpower input;

[0021] (2) The original metal pipe cutting and metal pipe coding process requires the metal pipe cutting and cutting to be completed before the metal pipe coding, which is inefficient overall. The metal pipe automatic cutting and cutting synchronous linkage device of the present invention can realize the metal pipe cutting and metal pipe coding synchronous linkage, save the time of secondary handling of metal pipes, and further improve the output efficiency;

[0022] (3) The original metal pipe cutting and metal pipe coding process operations are mainly manual operations, and there are cases where the operator is not focused and causes operational errors (such as marking the wrong cutting point, not cutting at the cutting point when cutting the metal pipe, and the metal pipe offset during coding, which does not meet the coding imaging requirements, etc.). After using the metal pipe automatic cutting and coding device of the present invention, since all related control programs control the overall production process, human errors are reduced and the waste of raw materials is reduced;

[0023] (4) The present invention installs the coding machine on one side of the cutting mechanism and adds a vibration reduction mechanism between the coding machine and the cutting mechanism, which can effectively reduce the impact of the metal pipe cutting on the coding imaging of the metal pipe and avoid the risk of unclear coding imaging due to the vibration of the metal pipe during the metal pipe cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention is further described in detail below based on the accompanying drawings and embodiments.

[0025] Figure 1 It is a top view schematic diagram of the metal pipe automatic unloading synchronous linkage cutting and coding device (after removing the second driving part) according to an embodiment of the present invention.

[0026] Figure 2 It is a side view schematic diagram of the metal pipe automatic unloading synchronous linkage cutting and coding device (after removing the first driving part and the second driving part) according to an embodiment of the present invention.

[0027] Figure 3 for Figure 2 A partial enlarged schematic diagram of part A.

[0028] In the figure:

[0029] 1. Metal pipes;

[0030] 100, feeding mechanism; 110, second bracket; 120, first roller; 130, first driving unit;

[0031] 200, cutting mechanism; 210, first bracket; 220, band saw;

[0032] 300, coding machine;

[0033] 400, unloading mechanism; 410, third bracket; 420, second roller;

[0034] 500, vibration reduction mechanism; 510, vibration reduction spring; 520, first base; 530, second base; 531, vertical plate; 532, horizontal plate; 540, guide part. DETAILED DESCRIPTION

[0035] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail 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 those skilled in the art without creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0038] In the description of this embodiment, if the terms "upper", "lower", "left", "right" and other directions or positional relationships appear, they are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, 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 limiting the present invention. In addition, if the terms "first", "second", etc. appear, they are only used to distinguish in the description and have no special meaning.

[0039] like Figure 1 and Figure 2As shown, the metal pipe automatic unloading synchronous linkage cutting and coding device of this embodiment includes a controller (not shown in the figure) and a feeding mechanism 100, a cutting mechanism 200, a coding machine 300 and a unloading mechanism 400 connected to the controller. The feeding mechanism 100, the cutting mechanism 200 and the unloading mechanism 400 are arranged in sequence along the conveying direction of the metal pipe 1, the coding machine 300 is installed on the cutting mechanism 200, the feeding mechanism 100 is used to convey the metal pipe 1 to the cutting mechanism 200, the cutting mechanism 200 is used to cut the metal pipe 1, the coding machine 300 is used to code the metal pipe 1 in the cutting process, and the unloading mechanism 400 is used to transfer the cut and coded metal pipe 1 from the cutting mechanism 200.

[0040] In this embodiment, the coding machine 300 is installed on the cutting mechanism 200. After the controller controls the feeding mechanism 100 to convey the metal pipe 1 to the cutting mechanism 200, the coding machine 300 can code the metal pipe 1 being cut while the cutting mechanism 200 is used to cut the metal pipe 1. After the cutting and coding are completed, the metal pipe in the cutting mechanism 200 can be transferred out by the unloading mechanism 400, leaving a cutting position for cutting the next section of the metal pipe 1 to be cut. The metal pipe automatic unloading synchronous linkage cutting and coding device of this embodiment can realize coding while cutting, and can automatically unload the cut metal pipe 1, avoiding the mistakes caused by manual operation that affect the processing quality of the metal pipe 1, and improving the processing efficiency and processing accuracy of the metal pipe 1.

[0041] Furthermore, if Figure 3 As shown, the metal pipe automatic unloading synchronous linkage cutting and coding device of this embodiment also includes a vibration reduction mechanism 500, and the coding machine 300 is connected to the cutting mechanism 200 through the vibration reduction mechanism 500. The vibration reduction mechanism 500 can enable the coding machine 300 to move up and down relative to the cutting mechanism 200.

[0042] Since the cutting mechanism 200 is prone to vibration during the cutting process of the metal pipe 1, which may cause unclear coding imaging of the coding machine 300 connected thereto, the present embodiment provides a vibration reduction mechanism 500 so that the coding machine 300 is connected to the cutting mechanism 200 through the vibration reduction mechanism 500. The vibration reduction mechanism 500 has a buffering effect on the coding machine 300, reducing the up and down vibration amplitude of the coding machine 300, thereby improving the coding imaging clarity of the coding machine 300.

[0043] Furthermore, the cutting mechanism 200 includes a first bracket 210 and a band saw 220 mounted on the first bracket 210, the band saw 220 is connected to the controller, the vibration reduction mechanism 500 includes a vibration reduction spring 510, a first base 520 and a second base 530, the first base 520 is fixed to the outer wall of the band saw 220, the vibration reduction spring 510 is mounted on the first base 520 and connected to the second base 530, the length of the vibration reduction spring 510 extends in the vertical direction, the coding machine 300 is mounted on the second base 530, and the coding machine 300 can move up and down relative to the first base 520.

[0044] It is understandable that when the band saw 220 is working, it drives the first base 520 to vibrate at the same frequency and amplitude, and the damping spring 510 is connected to the second base 530 on which the coding machine 300 is installed. The damping spring 510 can reduce the vibration amplitude of the coding machine 300 to improve the clarity of coding imaging.

[0045] The band saw 220 is provided with a clamping mechanism (not shown in the figure) for clamping the metal pipe 1 .

[0046] The band saw 220 of this embodiment is a conventional technical means in the art, and the details are not repeated here.

[0047] Furthermore, the vibration reduction mechanism 500 further includes a guide portion 540 that plays a guiding role in the vertical direction, and the second base 530 is guided and connected to the first base 520 via the guide portion 540 .

[0048] By setting the guide part 540, after the second base 530 is connected to the first base 520 through the guide part 540, when the band saw 220 is working, it will drive the second base 530 and the coding machine 300 to move up and down along the guide part 540 under the action of the damping spring 510, thereby preventing the damping spring 510 from being deflected or bent and affecting the coding imaging effect.

[0049] Exemplarily, the second base 530 includes a vertical plate 531 and a horizontal plate 532, the horizontal plate 532 is vertically connected to the vertical plate 531, the horizontal plate 532 is parallel to the first base 520, and the horizontal plate 532 and the first base 520 are located on the same side of the vertical plate 531, one end of the shock-absorbing spring 510 is connected to the horizontal plate 532, and the other end is connected to the first base 520, the number of the shock-absorbing springs 510 is two, the guide portion 540 includes two guide rods arranged at intervals, the length of the guide rods extends in the vertical direction, a shock-absorbing spring 510 is sleeved on the outer periphery of each guide rod, one of the horizontal plate 532 and the first base 520 is fixedly connected to the guide rod, and the other is allowed to pass through by the guide rod and can move along the length direction of the guide rod.

[0050] In this embodiment, the guide rod is set at the position of the damping spring 510, that is, the damping spring 510 is sleeved on the guide rod, so that one end of the damping spring 510 is connected to the horizontal plate 532 and the other end is connected to the first base 520. The coding machine 300 can only move up and down along the guide rod, avoiding the phenomenon of unclear coding imaging.

[0051] Furthermore, the feeding mechanism 100 includes a second bracket 110, a plurality of first rollers 120 mounted on the second bracket 110, and a first driving unit 130. The plurality of first rollers 120 are arranged at intervals along the conveying direction of the metal pipe 1. The axial direction of the first rollers 120 is perpendicular to the length direction of the metal pipe 1. The first driving unit 130 is transmission-connected to at least one group of the first rollers 120. The second bracket 110 is located on the metal pipe 1 inlet side of the cutting mechanism 200, and the first driving unit 130 is connected to the controller.

[0052] Among them, the controller is connected to the first driving unit 130. The controller controls the working time, rotation speed or number of rotations of the first driving unit 130 (the first driving unit 130 is a motor) to control the cutting length of each section of the metal pipe 1. For example, when the first driving unit 130 drives the metal pipe 1 to move to a certain position of the band saw 220 (the position of the saw) at the point to be cut through the first roller 120, the first driving unit 130 stops working, and the controller controls the band saw 220 to cut the metal pipe 1.

[0053] The first driving part 130 can be connected to one group of first rollers 120 through transmission. The metal pipe 1 can be driven to move in a direction close to the cutting mechanism 200 through the group of first rollers 120. During the movement of the metal pipe 1, it maintains contact with other first rollers 120, thereby driving other first rollers 120 to rotate, thereby assisting in conveying the metal pipe 1.

[0054] Furthermore, the first driving part 130 is drivingly connected to the first roller 120 on the outlet side of the metal pipe 1 adjacent to the cutting mechanism 200 .

[0055] When the metal pipe 1 is received, the metal pipe 1 is first transported to the first roller 120 which is transmission-connected to the first driving unit 130 , so that the metal pipe 1 can be transported.

[0056] Furthermore, the unloading mechanism 400 includes a third bracket 410, a plurality of second rollers 420 mounted on the third bracket 410, and a second driving unit (not shown in the figure), the plurality of second rollers 420 are arranged at intervals along the conveying direction of the metal pipe 1, the axial direction of the second rollers 420 is perpendicular to the length direction of the metal pipe 1, the second driving unit is transmission-connected to at least one group of the second rollers 420, the third bracket 410 is located on the metal pipe 1 outlet side of the cutting mechanism 200, and the second driving unit is connected to the controller.

[0057] During the cutting and coding process of the metal pipe 1, the first driving unit 130 and the second driving unit are both kept in a stopped state. When it is detected that the cutting of the metal pipe 1 is completed, the controller synchronously drives the first driving unit 130 and the second driving unit to start working, and synchronously realizes loading and unloading, thereby improving the processing efficiency of the metal pipe 1.

[0058] The second driving part is in driving connection with the second roller 420 at the outlet side of the metal pipe 1 adjacent to the cutting mechanism 200. During the cutting process of the metal pipe 1, a part of the metal pipe 1 contacts the second roller 420 close to the cutting mechanism 200. Therefore, after the cutting and coding are completed, the controller controls the second driving part to start, so that the metal pipe 1 that has been cut and coded can be quickly transferred out of the cutting mechanism 200, leaving space for the cutting of the next section of the metal pipe 1 in the cutting mechanism 200.

[0059] In this embodiment, the first driving part 130 and the second driving part are both motors, and the transmission connection structure and transmission principle between them and the corresponding rollers are conventional technical means in the field, and the details are not repeated here.

[0060] This embodiment also includes a number of sensors (not shown in the figure). Those skilled in the art can install each sensor in a suitable position according to actual needs. After the sensor collects relevant information, it transmits it to the controller. The controller determines and controls the next operation based on the collected information.

[0061] The controller of this embodiment can be a computer controller. The relevant control program and the connection relationship between the computer controller and the drive unit, band saw, sensor, etc. are all conventional technologies in the field and will not be described in detail.

[0062] The metal pipe automatic unloading synchronous linkage cutting and coding device of this embodiment is intended to integrate the metal pipe cutting and coding processes through information and automation. By modifying the existing band saw and coding machine, the equipment can realize automatic unloading and synchronous coding functions, reduce labor input and the time taken by the two processes, so as to improve the efficiency of unloading, cutting and coding of the metal pipe 1, and provide basic guarantee for the production of the overall metal pipe 1.

[0063] This embodiment also provides a method for automatic unloading, synchronous linkage, cutting and coding of metal pipes, which uses the automatic unloading, synchronous linkage, cutting and coding device of the above embodiment, including the following steps:

[0064] S10, the metal pipe 1 is transported to the feeding mechanism 100, and the controller controls the feeding mechanism 100 to deliver the metal pipe 1 to the designated position of the cutting mechanism 200 according to the cutting length of the metal pipe 1;

[0065] S20, the controller controls the cutting mechanism 200 to cut the metal pipe 1 and controls the coding machine 300 to code the metal pipe 1 being cut;

[0066] S30, the controller drives the unloading mechanism 400 to move the cut and coded metal pipe 1 out of the cutting mechanism 200, and returns to step S10.

[0067] The method for automatic unloading, synchronous linkage cutting and coding of metal pipes in this embodiment has the following beneficial effects:

[0068] (1) The labor input is reduced from the current required line marking workers, cutting equipment operators and coding workers to one operator. Based on the average monthly salary of 13,193 yuan for employees in Guangzhou in 2023, the labor cost can be saved by 316,632 yuan per year.

[0069] (2) Production efficiency has been improved. The time required for cutting and coding metal pipes has been shortened by nearly half, and output has been increased by about one-fold.

[0070] (3) Reduce operational errors, improve accuracy, reduce material losses, and reduce management costs.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A metal pipe automatic feeding synchronous linkage cutting and coding device, characterized in that: The invention comprises a controller and a feeding mechanism, a cutting mechanism, a coding machine and a feeding mechanism connected to the controller. The feeding mechanism, the cutting mechanism and the feeding mechanism are arranged in sequence along the conveying direction of the metal pipe. The coding machine is installed on the cutting mechanism. The feeding mechanism is used to convey the metal pipe to the cutting mechanism. The cutting mechanism is used to cut the metal pipe. The coding machine is used to code the metal pipe in the cutting process. The feeding mechanism is used to transfer the cut and coded metal pipe from the cutting mechanism.

2. The metal pipe automatic unloading synchronous linkage cutting and coding device according to claim 1 is characterized in that: It also includes a vibration reduction mechanism, through which the coding machine is connected to the cutting mechanism, and the vibration reduction mechanism can enable the coding machine to move up and down relative to the cutting mechanism.

3. The metal pipe automatic unloading synchronous linkage cutting and coding device according to claim 2 is characterized in that: The cutting mechanism includes a first bracket and a band saw mounted on the first bracket, the band saw is connected to the controller, the vibration reduction mechanism includes a vibration reduction spring, a first base and a second base, the first base is fixed to the outer wall of the band saw, the vibration reduction spring is mounted on the first base and connected to the second base, the length of the vibration reduction spring extends in the vertical direction, the coding machine is mounted on the second base, and the coding machine can move up and down relative to the first base.

4. The metal pipe automatic unloading synchronous linkage cutting and coding device according to claim 3 is characterized in that: The vibration reduction mechanism further includes a guide portion that plays a guiding role in the vertical direction, and the second base is connected to the first base through the guide portion.

5. The metal pipe automatic unloading synchronous linkage cutting and coding device according to claim 4 is characterized in that: The second base includes a vertical plate and a horizontal plate, the horizontal plate is vertically connected to the vertical plate, the horizontal plate is parallel to the first base, and the horizontal plate and the first base are located on the same side of the vertical plate, one end of the shock-absorbing spring is connected to the horizontal plate, and the other end is connected to the first base, the number of the shock-absorbing springs is two, the guide part includes two guide rods arranged at intervals, the length of the guide rods extends in the vertical direction, and a shock-absorbing spring is sleeved on the outer periphery of each guide rod, one of the horizontal plate and the first base is fixedly connected to the guide rod, and the other is allowed for the guide rod to pass through and can move along the length direction of the guide rod.

6. The metal pipe automatic unloading synchronous linkage cutting and coding device according to any one of claims 1 to 5, characterized in that: The feeding mechanism includes a second bracket, a plurality of first rollers mounted on the second bracket, and a first driving unit. The plurality of first rollers are arranged at intervals along the conveying direction of the metal pipe. The axial direction of the first rollers is perpendicular to the length direction of the metal pipe. The first driving unit is transmission-connected to at least one group of the first rollers. The second bracket is located at the metal pipe inlet side of the cutting mechanism, and the first driving unit is connected to the controller.

7. The metal pipe automatic unloading synchronous linkage cutting and coding device according to claim 6 is characterized in that: The first driving part is drivingly connected to the first roller at the metal pipe outlet side adjacent to the cutting mechanism.

8. The metal pipe automatic unloading synchronous linkage cutting and coding device according to any one of claims 1 to 5, characterized in that: The unloading mechanism includes a third bracket, a plurality of second rollers mounted on the third bracket, and a second driving unit. The plurality of second rollers are arranged at intervals along the conveying direction of the metal pipe. The axial direction of the second rollers is perpendicular to the length direction of the metal pipe. The second driving unit is transmission-connected to at least one group of the second rollers. The third bracket is located at the metal pipe outlet side of the cutting mechanism, and the second driving unit is connected to the controller.

9. The metal pipe automatic unloading synchronous linkage cutting and coding device according to claim 8 is characterized in that: The second driving part is drivingly connected to the second roller on the metal pipe outlet side adjacent to the cutting mechanism.

10. A method for automatic unloading, synchronous linkage, cutting and coding of metal pipes, using the automatic unloading, synchronous linkage, cutting and coding device of any one of claims 1 to 9, characterized in that: The following steps are involved: S10, transporting the metal pipe to the feeding mechanism, and the controller controlling the feeding mechanism to deliver the metal pipe to a designated position in the cutting mechanism according to the cutting length of the metal pipe; S20, the controller controls the cutting mechanism to cut the metal pipe and controls the coding machine to code the metal pipe being cut; S30, the controller drives the unloading mechanism to move the metal pipe that has been cut and coded out of the cutting mechanism, and returns to step S10.

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