A feeding rack

Abstract

The utility model relates to laser pipe cutting equipment field especially, and a kind of feeding rack, it includes drive assembly, multiple synchronous shafts and multiple interval arrangement feeding assembly, each feeding assembly includes rack, drive shaft, transport component and at least two supporting feet, supporting foot is respectively arranged at the bottom of the both ends of rack, transport component is correspondingly set on rack, drive shaft is set in the discharge end of rack and with rack relatively rotatable, drive shaft is correspondingly connected with transport component transmission, synchronous shaft is set between adjacent drive shaft, and synchronous shaft is connected with drive shaft through coupling transmission, drive assembly is set on one of supporting feet, and drive assembly is connected with synchronous shaft transmission. Feeding rack itself forms independent structure through supporting foot, not dependent on bed body, reduces positioning and connecting procedure, saves installation time and manpower, and also can be flexibly adjusted according to the layout needs of actual production site, easy to expand or transform.

Description

Technical Field

[0001] This utility model relates to the field of laser tube cutting equipment, and in particular to a feeding rack. Background Technology

[0002] Traditional feeding racks are typically fixed at one end to a side-mounted bed for connection and fixation. During the installation phase, this method requires precise installation positioning and involves numerous connection procedures, resulting in significant time and labor costs. Furthermore, after the equipment is put into use, the bed obstructs maintenance of the feeding components and frame, making it extremely inconvenient for staff to access critical parts for tasks such as checking equipment operation and replacing components. This severely impacts equipment maintenance efficiency and the continuity of normal operation. Utility Model Content

[0003] The technical problem this utility model aims to solve is that the traditional method of connecting the feeding rack to the side of the bed is difficult to install and position, has a complicated connection process, and is difficult to inspect and maintain due to obstruction by the bed.

[0004] The solution to the technical problem of this utility model is: a feeding rack, which includes a drive assembly, multiple synchronous shafts and multiple feeding assemblies arranged at intervals. Each feeding assembly includes a frame, a drive shaft, a transport assembly and at least two support feet. The support feet are respectively disposed at the bottom of both ends of the frame. The transport assemblies are correspondingly disposed on the frame. The drive shaft is disposed at the discharge end of the frame and can rotate relative to the frame. The drive shaft is correspondingly connected to the transport assembly. The synchronous shaft is disposed between adjacent drive shafts and is connected to the drive shaft via a coupling. The drive assembly is disposed on one of the support feet and is connected to the synchronous shaft.

[0005] As a further improvement to the above technical solution, the drive assembly includes a first motor, a drive wheel, a first chain, and a driven wheel. The first motor is mounted on one of the support legs. The drive wheel is coaxially rotatable with the drive unit of the first motor. The drive wheel is connected to the driven wheel via the first chain. The driven wheel is coaxially rotatable with one of the synchronous shafts.

[0006] As a further improvement to the above technical solution, the transport component includes a first sprocket, a second sprocket, a second chain, and a plurality of material limiting blocks. The first sprocket is disposed at the feed end of the frame and can rotate relative to the frame. The second sprocket is sleeved on the drive shaft and is coaxially rotatable with the drive shaft. The first sprocket is connected to the second sprocket via the second chain. The material limiting blocks are spaced apart on the outer surface of the second chain, and a transport space for placing pipe materials is formed between adjacent material limiting blocks.

[0007] As a further improvement to the above technical solution, the second chain includes multiple chain links and multiple L-shaped connectors. The multiple chain links are connected end to end. The two ends of the sidewall of the L-shaped connector are respectively hinged to two adjacent chain links. The top of the L-shaped connector is provided with a first mounting hole. The bottom surface of the limiting block is provided with a second mounting hole that mates with the first mounting hole. The limiting block is detachably mounted on the L-shaped connector by a first bolt, which passes through the first mounting hole and the second mounting hole.

[0008] As a further improvement to the above technical solution, the feeding assembly further includes a first axis limiting plate and a second axis limiting plate, wherein the first axis limiting plate is disposed at the feeding end of the frame and the second axis limiting plate is disposed at the discharging end of the frame.

[0009] As a further improvement to the above technical solution, the feeding assembly further includes a bearing housing and a first positioning block. The drive shaft is mounted on the frame via the bearing housing. The first positioning block is located on the side of the bearing housing away from the feeding assembly. A screw that abuts against the bearing housing is threaded onto the first positioning block.

[0010] As a further improvement to the above technical solution, the loading rack also includes a limit switch. The limit switch includes a switch body and a trigger for triggering the switch body. The switch body is disposed on one of the frames and located upstream of the second axis limiting plate. The switch body is electrically connected to the drive assembly. The trigger is provided with an inclined portion that is inclined toward the transport assembly.

[0011] As a further improvement to the above technical solution, the drive assembly also includes a driven shaft and an adjusting bolt. The frame is provided with an adjusting groove and a second positioning block. The first limiting shaft plate and the adjusting groove enclose an adjusting space for the driven shaft to move back and forth along the transport direction. The driven shaft is disposed in the adjusting space and is provided with a threaded hole. The second positioning block is provided with an adjusting bolt that is threadedly connected to the threaded hole.

[0012] As a further improvement to the above technical solution, the feeding rack also includes a protective frame. The protective frame is located on the side of one of the outermost feeding components away from the adjacent feeding components. The protective frame includes a baffle and two first columns. The two ends of the baffle are respectively connected and fixed to the two first columns. The height of the baffle matches the height of the feeding component to prevent the pipe placed in the feeding component from being displaced in the vertical direction of the transport direction.

[0013] As a further improvement to the above technical solution, the feeding rack also includes two protective nets, and all the feeding components are arranged between the two protective nets. Each protective net includes at least two second uprights and multiple horizontal bars. The horizontal bars are arranged vertically, and the two ends of the horizontal bars are respectively connected and fixed to the adjacent second uprights.

[0014] The beneficial effects of this utility model are as follows: the drive assembly provides power to the synchronous shaft, which is connected to adjacent drive shafts to ensure that the drive shafts of multiple feeding assemblies rotate synchronously, coordinate the operation of each feeding assembly, and ensure the synchronicity and stability of material transportation; the frame provides an installation position to ensure the stability of the entire feeding assembly structure; the synchronous shaft is located at the discharge end, which facilitates the addition of materials to the feeding rack by forklifts, overhead cranes, and other means; the transport assembly, driven by the drive shaft, actually performs the task of transporting materials; the support feet are respectively located at the bottom of both ends of the frame to support the entire feeding assembly, enabling it to be placed independently and stably, freeing it from dependence on the bed, and facilitating installation and position adjustment. The loading rack itself forms an independent structure through its support legs, independent of the bed, reducing positioning and connection processes, saving installation time and manpower. Its position can also be flexibly adjusted according to the actual layout requirements of the production site, making it easy to expand or modify. The drive components are set on the support legs, and the loading components are distributed at intervals, ensuring that key components are not obstructed by the bed, facilitating access for maintenance. The loading components are arranged in a modular, space-saving manner, making disassembly simple, occupying little space, and convenient for shipping and transportation. When a component malfunctions, it can be repaired or replaced individually without interfering with the operation of other normal components, facilitating troubleshooting and handling, and ensuring the continuity of overall production. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly explained below. Obviously, the described drawings are only a part of the embodiments of this utility model, and not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of one embodiment of the present invention;

[0017] Figure 2yes Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 yes Figure 1 Enlarged view of point B in the middle;

[0019] Figure 4 This is a schematic diagram of the limit switch according to one embodiment of the present invention.

[0020] Reference numerals in the attached drawings: 100-Drive assembly; 110-First motor; 120-Drive wheel; 130-First chain; 140-Driven wheel; 150-Driven shaft; 160-Adjusting bolt; 200-Synchronous shaft; 300-Feeding assembly; 310-Frame; 311-Adjusting groove; 312-Second positioning block; 320-Drive shaft; 330-Transport assembly; 331-First sprocket; 332-Second sprocket; 333-Second chain; 3331-Chain link; 333 2-L-type connector; 3333-First mounting hole; 334-Material limiting block; 3341-Second mounting hole; 340-Support foot; 350-First axis limiting plate; 360-Second axis limiting plate; 370-Bearing seat; 380-First positioning block; 400-Protective frame; 410-Baffle; 420-First column; 500-Protective net; 510-Second column; 520-Horizontal bar; 600-Limit switch; 610-Switch body; 620-Trigger element; 621-Inclined part. Detailed Implementation

[0021] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages mentioned herein do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.

[0022] Traditional feeding racks are typically fixed at one end to a side-mounted bed for connection and fixation. During the installation phase, this method requires precise installation positioning and involves numerous connection procedures, resulting in significant time and labor costs. Furthermore, after the equipment is put into use, the bed obstructs maintenance of the feeding components and frame, making it extremely inconvenient for staff to access critical parts for tasks such as checking equipment operation and replacing components. This severely impacts equipment maintenance efficiency and the continuity of normal operation.

[0023] Therefore, this utility model proposes a feeding rack, referring to... Figures 1-4 It includes a drive assembly 100, multiple synchronous shafts 200, and multiple feeding assemblies 300 arranged at intervals. Each feeding assembly 300 includes a frame 310, a drive shaft 320, a transport assembly 330, and at least two support feet 340. The support feet 340 are respectively disposed at the bottom of both ends of the frame 310. The transport assemblies 330 are correspondingly disposed on the frame 310. The drive shaft 320 is disposed at the discharge end of the frame 310 and is rotatable relative to the frame 310. The drive shaft 320 is correspondingly connected to the transport assembly 330. The synchronous shaft 200 is disposed between adjacent drive shafts 320 and is connected to the drive shaft 320 via a coupling. The drive assembly 100 is disposed on one of the support feet 340 and is connected to the synchronous shaft 200.

[0024] The drive assembly 100 provides power to the synchronous shaft 200, which is connected to the adjacent drive shaft 320, ensuring that the drive shafts 320 of multiple feeding assemblies 300 rotate synchronously, coordinating the operation of each feeding assembly 300, and ensuring the synchronicity and stability of material transportation. The frame 310 provides an installation position to ensure the stability of the entire feeding assembly 300 structure. The synchronous shaft 200 is located at the discharge end, facilitating the addition of materials to the feeding rack by forklifts, overhead cranes, and other means. The transport assembly 330, driven by the drive shaft 320, actually performs the task of transporting materials. The support feet 340 are respectively located at the bottom of both ends of the frame 310 to support the entire feeding assembly 300, enabling it to be placed independently and stably, freeing it from dependence on the bed, and facilitating installation and position adjustment. The loading rack itself forms an independent structure through the support legs 340, independent of the bed, reducing positioning and connection processes, saving installation time and manpower. Its position can also be flexibly adjusted according to the actual layout requirements of the production site, making it easy to expand or modify. The drive component 100 is set on the support legs 340, and the loading components 300 are distributed at intervals, ensuring that key components are not obstructed by the bed, facilitating access for maintenance. The loading components 300 are modularly arranged at intervals, making disassembly simple, occupying little space, and facilitating shipping and transportation. When a component malfunctions, it can be repaired or replaced individually without interfering with the operation of other normal components, facilitating troubleshooting and handling, and ensuring the continuity of overall production.

[0025] During loading, the power generated by the drive assembly 100 is first transmitted to the synchronous shaft 200, and then from the synchronous shaft 200 to the drive shafts 320 of each loading assembly 300 via a coupling. The drive shafts 320 drive the transport assemblies 330 connected to them to start operating. When the tubular material is placed on the transport assemblies 330, it will move from the inlet end to the outlet end according to the rotation direction of the transport assemblies 330, thus realizing the material loading and conveying process. The various components work closely together and coordinate with each other. The synchronous shaft 200 ensures the synchronization of multiple loading assemblies 300, ensuring the stable and efficient operation of the entire loading rack.

[0026] In one embodiment, the drive assembly 100 includes a first motor 110, a drive wheel 120, a first chain 130, and a driven wheel 140. The first motor 110 is mounted on one of the support feet 340. The drive wheel 120 is coaxially rotatable with the drive unit of the first motor 110. The drive wheel 120 is connected to the driven wheel 140 via the first chain 130. The driven wheel 140 is coaxially rotatable with one of the synchronous shafts 200. The drive assembly 100, composed of a motor, wheel, and chain, is easy to assemble and disassemble, facilitating installation and subsequent maintenance, and reducing the risk of failure due to structural complexity. The compact layout of the components, mounted on the support feet 340, makes efficient use of the space within the loading rack itself, without occupying excessive external space, thus maintaining the overall compactness of the loading rack structure and facilitating placement and use in various environments.

[0027] Pipes placed on transport components are prone to becoming disorderly, potentially leading to mutual compression, collisions, and displacement. Therefore, in one embodiment, the transport component 330 includes a first sprocket 331, a second sprocket 332, a second chain 333, and multiple limiting blocks 334. The first sprocket 331 is disposed at the feed end of the frame 310 and is rotatable relative to the frame 310. The second sprocket 332 is sleeved on the drive shaft 320 and is coaxially rotatable with the drive shaft 320. The first sprocket 331 is connected to the second sprocket 332 via the second chain 333. The limiting blocks 334 are spaced apart on the outer surface of the second chain 333, forming a transport space for placing the pipes between adjacent limiting blocks 334. By setting limiting blocks 334 at intervals on the outer surface of the second chain 333, a specific transport space is formed between adjacent limiting blocks 334, which can accurately limit the placement position of the pipe material, so that the pipe material will not move randomly during transportation, ensuring the accuracy and orderliness of feeding. With the transmission cooperation of the first sprocket 331, the second sprocket 332 and the second chain 333, the gradual driving feeding of multiple pipe materials can be realized. During feeding, only simple manual assistance is needed to place the pipe material in the transport space, without the need for complicated operating procedures or professional equipment, which reduces the labor input cost and the skill requirements of the operators.

[0028] Fixed-size transport space cannot accommodate the requirements of pipes of different sizes. Therefore, in one embodiment, the second chain 333 includes multiple chain links 3331 and multiple L-shaped connectors 3332. The multiple chain links 3331 are connected end to end. The two ends of the sidewall of the L-shaped connector 3332 are respectively hinged to two adjacent chain links 3331. The top of the L-shaped connector 3332 is provided with a first mounting hole 3333. The bottom surface of the limiting block 334 is provided with a second mounting hole that mates with the first mounting hole 3333. The limiting block 334 is detachably mounted on the L-shaped connector 3332 by a first bolt, which passes through the first mounting hole 3333 and the second mounting hole. The L-shaped connector serves as an intermediate connecting component, making the installation and removal of the limiting block 334 simple and easy. The size and quantity of the limiting block 334 can be determined according to the pipe size. With this detachable installation method, it is convenient to increase or decrease the quantity of the limiting block 334 or replace it with a different size at any time. This allows the transport component 330 to accurately adapt to the feeding of pipes of different specifications, enhancing the adaptability of the entire feeding rack to various pipes and improving the versatility and practical value of the equipment.

[0029] When the pipe is first placed at the inlet and the transport is started, or when the outlet is about to finish loading, the pipe is prone to rolling or sliding out of the loading rack due to its own inertia. Therefore, in one embodiment, the loading assembly 300 further includes a first axis limiting plate 350 and a second axis limiting plate 360. The first axis limiting plate 350 is disposed at the inlet end of the frame 310, and the second axis limiting plate 360 ​​is disposed at the outlet end of the frame 310. By setting the first axis limiting plate 350 at the inlet end of the frame 310 and the second axis limiting plate 360 ​​at the outlet end, the pipe can be effectively prevented from rolling or sliding out of the loading rack due to inertia, avoiding damage caused by the pipe falling, ensuring the safety of the pipe transportation process, and reducing material loss and potential safety risks during the production process. The setting of the two axis limiting plates reduces the risk of collision and damage to other parts of the equipment that may be caused by the pipe detaching from the loading rack.

[0030] Poor coaxiality between drive shafts 320 may affect the smoothness of power transmission. Therefore, in one embodiment, the feeding assembly 300 further includes a bearing housing 370 and a first positioning block 380. The drive shaft 320 is mounted on the frame 310 via the bearing housing 370. The first positioning block 380 is located on the side of the bearing housing 370 away from the feeding assembly 300, and a screw threaded onto the first positioning block 380 abuts against the bearing housing 370. By setting the first positioning block 380 and its mating screw, the bearing housing 370 can be finely adjusted, allowing the center of the drive shaft 320 to be precisely aligned with the same axis. This effectively compensates for errors caused by processing and installation, ensuring good coaxiality between the drive shafts 320 and laying the foundation for stable and efficient power transmission and material transportation.

[0031] Specifically, the bearing housing 370 has a third mounting hole, and the frame 310 has a fourth mounting hole that mates with the third mounting hole. The bearing housing 370 is mounted on the frame 310 by a second bolt, which passes through the fourth mounting hole. Without tightening the second bolt, the position of the adjusting screw allows for fine-tuning of the bearing housing 370 towards the upward feeding assembly 300 to ensure that all drive shafts 320 are centered on the same axis. After adjustment, tightening the second bolt locks the position of the bearing housing 370.

[0032] The pipes may collide with other parts of the equipment due to inertia or other reasons while being driven by the transport component 330, causing damage to the equipment. Therefore, in one embodiment, the loading rack also includes a limit switch 600, which includes a switch body 610 and a trigger element 620 for triggering the switch body 610. The switch body 610 is disposed on one of the frames 310 and located upstream of the second axis limiting plate 360. The switch body 610 is electrically connected to the drive component 100, and the trigger element 620 is provided with an inclined portion 621 that is inclined towards the transport component 330. By setting the limit switch 600, when the pipe approaches the second limit plate 360 ​​at the discharge end under the drive of the transport component 330, the limit switch 600 can be triggered by the weight of the pipe itself, thereby stopping the drive component 100 and allowing the pipe to be moved to the accurate position in front of the second limit plate 360. This prevents the pipe from sliding out of the feeder due to inertia or other reasons, and also ensures that the pipe can accurately stop at the ideal position for subsequent use each time, thus ensuring the accuracy of feeding.

[0033] After prolonged use, the chain may loosen, leading to unstable chain transmission. Therefore, in one embodiment, the drive assembly 100 further includes a driven shaft 150 and an adjusting bolt 160. The frame 310 is provided with an adjusting groove 311 and a second positioning block 312. The first shaft limiting plate 350 and the adjusting groove 311 enclose an adjusting space for the driven shaft 150 to move back and forth along the transport direction. The driven shaft 150 is disposed within the adjusting space and has a threaded hole. The second positioning block 312 is fitted with an adjusting bolt 160 that is threaded into the threaded hole. By turning the head of the adjusting bolt 160, the back-and-forth position of the driven shaft 150 in the transport direction can be adjusted, thereby changing the tension of the transport chain. This allows the chain to quickly obtain appropriate tension, ensuring tight meshing between the chain and the sprocket, resulting in smoother and more reliable power transmission. This ensures that materials such as pipes can be transported smoothly on the transport assembly 330 at a predetermined speed and direction, maintaining the normal operation of the loading process.

[0034] During transportation, pipes may sway, shift, or even fall in the vertical direction of the transport direction due to external interference, equipment vibration, or other factors. Therefore, in one embodiment, the loading rack also includes a protective frame 400. The protective frame 400 is located on the side of one of the outermost loading components 300 away from the adjacent loading components 300. The protective frame 400 includes a baffle 410 and two first columns 420. The two ends of the baffle 410 are respectively connected and fixed to the two first columns 420. The height of the baffle 410 matches the height of the loading component 300 to prevent the pipes placed in the loading component 300 from shifting in the vertical direction of the transport direction. The height of the baffle 410 of the protective frame 400 matches the height of the feeding assembly 300, which can effectively prevent the pipe from shifting in the vertical direction of the transportation direction, ensuring that the pipe remains in the correct position during transportation, avoiding problems such as disordered pipe arrangement and falling due to shaking or offset, and ensuring the stability and accuracy of feeding; it prevents the pipe from being accidentally displaced in the vertical direction, reducing the risk of pipe falling and injuring operators or damaging surrounding equipment, creating a safer environment for on-site production operations, and meeting the requirements of safe production.

[0035] Operators may accidentally enter the working area of ​​the loading rack, making them vulnerable to injury from moving parts. Therefore, in one embodiment, the loading rack further includes two protective nets 500, with all the loading components 300 positioned between the two protective nets 500. Each protective net 500 includes at least two second uprights 510 and multiple horizontal bars 520, arranged vertically, with both ends of each horizontal bar 520 connected and fixed to adjacent second uprights 510. The protective nets 500 prevent personnel from freely entering the working area of ​​the loading rack, avoiding contact between operators and moving parts and reducing the risk of injury.

[0036] Preferably, the feeding rack also includes connecting pipes. The support legs 340 near the feeding end of the frame 310 are connected and fixed together by the connecting pipes. The connecting pipes are arranged between adjacent support legs 340 and located at the lower part of the support legs 340. By setting connecting pipes between adjacent support legs 340 and fixing them to the lower part of the support legs 340, the lateral connection rigidity between the support legs 340 can be effectively enhanced, so that multiple support legs 340 form a more stable overall structure.

[0037] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A feeding rack, characterized in that: The device includes a drive assembly, multiple synchronous shafts, and multiple spaced-apart feeding assemblies. Each feeding assembly includes a frame, a drive shaft, a transport assembly, and at least two support legs. The support legs are respectively located at the bottom of both ends of the frame. The transport assemblies are correspondingly mounted on the frame. The drive shaft is located at the discharge end of the frame and is rotatable relative to the frame. The drive shaft is correspondingly connected to the transport assembly. The synchronous shaft is located between adjacent drive shafts and is connected to the drive shaft via a coupling. The drive assembly is mounted on one of the support legs and is connected to the synchronous shaft.

2. The feeding rack according to claim 1, characterized in that: The drive assembly includes a first motor, a drive wheel, a first chain, and a driven wheel. The first motor is mounted on one of the support legs. The drive wheel is coaxially rotatable with the drive unit of the first motor. The drive wheel is connected to the driven wheel via the first chain. The driven wheel is coaxially rotatable with one of the synchronous shafts.

3. The feeding rack according to claim 1, characterized in that: The transport assembly includes a first sprocket, a second sprocket, a second chain, and multiple material limiting blocks. The first sprocket is disposed at the feed end of the frame and is rotatable relative to the frame. The second sprocket is sleeved on the drive shaft and is coaxially rotatable with the drive shaft. The first sprocket is connected to the second sprocket via the second chain. The material limiting blocks are spaced apart on the outer surface of the second chain, and a transport space for placing pipe materials is formed between adjacent material limiting blocks.

4. The feeding rack according to claim 3, characterized in that: The second chain includes multiple chain links and multiple L-shaped connectors. The multiple chain links are connected end to end. The two ends of the sidewall of the L-shaped connector are respectively hinged to two adjacent chain links. The top of the L-shaped connector is provided with a first mounting hole. The bottom surface of the limiting block is provided with a second mounting hole that mates with the first mounting hole. The limiting block is detachably mounted on the L-shaped connector by a first bolt, which passes through the first mounting hole and the second mounting hole.

5. The feeding rack according to claim 1, characterized in that: The feeding assembly further includes a first axis limiting plate and a second axis limiting plate, the first axis limiting plate being disposed at the feeding end of the frame and the second axis limiting plate being disposed at the discharging end of the frame.

6. The feeding rack according to claim 1, characterized in that: The feeding assembly further includes a bearing housing and a first positioning block. The drive shaft is mounted on the frame via the bearing housing. The first positioning block is located on the side of the bearing housing away from the feeding assembly. A screw that abuts against the bearing housing is threaded onto the first positioning block.

7. The feeding rack according to claim 5, characterized in that: The loading rack also includes a limit switch, which includes a switch body and a trigger for triggering the switch body. The switch body is disposed on one of the frames and located upstream of the second axis limiting plate. The switch body is electrically connected to the drive assembly. The trigger is provided with an inclined portion that is inclined toward the transport assembly.

8. The feeding rack according to claim 5, characterized in that: The drive assembly also includes a driven shaft and an adjusting bolt. The frame is provided with an adjusting groove and a second positioning block. The first shaft limiting plate and the adjusting groove enclose an adjusting space for the driven shaft to move back and forth along the transport direction. The driven shaft is disposed in the adjusting space and has a threaded hole. The second positioning block is provided with an adjusting bolt that is threadedly connected to the threaded hole.

9. The feeding rack according to claim 1, characterized in that: The feeding rack also includes a protective frame, which is located on the side of one of the outermost feeding components away from the adjacent feeding components. The protective frame includes a baffle and two first columns. The two ends of the baffle are respectively connected and fixed to the two first columns. The height of the baffle matches the height of the feeding component to prevent the pipes placed in the feeding component from being displaced in the vertical direction of the transport direction.

10. The feeding rack according to claim 1, characterized in that: The feeding rack also includes two protective nets, and all the feeding components are arranged between the two protective nets. Each protective net includes at least two second uprights and multiple horizontal bars. The horizontal bars are arranged vertically, and the two ends of the horizontal bars are respectively connected and fixed to the adjacent second uprights.

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