Storage-type rear-feed circumferential welder

Abstract

This application discloses a storage-type, rear-feed circumferential welding machine, including a left clamp and a right clamp arranged opposite each other, a cylinder support and tilting mechanism disposed between them, and a storage mechanism, a feeding mechanism, and a discharging mechanism located behind the support base. The support and tilting mechanism has a "︺"-shaped support base, which can be raised, lowered, and tilted around the cylinder axis. The storage mechanism has multiple storage bins to realize continuous material storage on the production line. The feeding mechanism has an inclined feeding ramp and a feeding device to realize automatic cylinder feeding. The discharging mechanism has an unloading ramp to realize automatic unloading. This structure realizes automatic cylinder feeding, clamping, welding, and unloading, improving the automation level and production efficiency of circumferential welding.

Description

Technical Field

[0001] This application relates to the field of circumferential welding technology for steel cylinders, and in particular to a special machine for circumferential welding of a storage-type post-feeding type. Background Technology

[0002] The circumferential welding of the upper and lower halves of the gas cylinder is a crucial step in the cylinder manufacturing process.

[0003] Chinese Patent, Publication No. CN106216816A, Publication Date: December 14, 2016, discloses a welding machine, specifically a fully automated LPG cylinder circumferential seam welding machine with a vision tracker. The welding head is mounted on a base via a gantry bracket, and a vision tracker is installed on the welding head. A pair of clamps, a main clamp and an auxiliary clamp, are respectively mounted on the main spindle box and the tail spindle box, which are mounted on linear guide rails on the base. A three-station loading and unloading mechanism is located below the pair of clamps. The welding head is also connected to a circulating cooling water tank, and includes a welding power supply, an electrical cabinet, and an electrical control system. The feeding cylinder 17 moves back and forth, pushing the V-shaped loading bracket 22 and unloading bracket 15 mounted on the upper part of the sliding plate 20 to move synchronously back and forth. The loading bracket 22 is at the front, and the unloading bracket 15 is at the rear.

[0004] The shortcomings of the above technical solution are as follows: 1. In this solution, the cylinder is fed in front of the clamp and welding head, and unloaded behind them. If the feeding mechanism is misaligned, or if the cylinder held by the clamp is tilted, the operator needs to adjust it to a horizontal clamping position. Furthermore, when the operator is in front of the machine observing the welding process or operating the machine, they are exposed to the forward path of the cylinder feeding device, creating a safety hazard. 2. There is no storage location, which can lead to machine idleness when the material supply is uneven, affecting work efficiency. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this application aims to provide a refrigerated, rear-feeding circumferential welding machine. By positioning both the cylinder feeding and unloading mechanisms at the rear of the machine, operators can adjust the cylinders on the support base, operate the machine, and observe the welding process without obstruction from the front, thus reducing safety hazards during operation. Furthermore, the refrigerated feeding mechanism solves the problem of low welding efficiency caused by discontinuous or uneven material feeding.

[0006] To achieve the above objectives, this application adopts the following technical solution: This application provides a storage-type rear-feed circumferential welding machine, comprising: a cylinder support and tilting mechanism; a feeding mechanism located behind the cylinder support and tilting mechanism, the feeding mechanism including a feeding frame and a loading mechanism, the feeding frame having a feeding ramp inclined downwards towards the support base, the feeding ramp having multiple storage bins, the loading mechanism being located at the lower end of the feeding ramp to place cylinders on the cylinder support and tilting mechanism; and a discharge mechanism located behind the cylinder support and tilting mechanism, the discharge mechanism including a discharge frame located below the feeding frame, the discharge frame having a discharge ramp inclined downwards from the support base.

[0007] As a preferred technical solution, the storage-type post-feeding circumferential welding machine further includes: a left clamp and a right clamp, which are arranged opposite each other; the cylinder support and flipping mechanism includes a support base, a support base flipping drive mechanism, and a support base lifting drive mechanism. The support base is disposed between the left clamp and the right clamp, and the cross-section of the support base is “︺”-shaped. The support base lifting drive mechanism is connected to the lifting of the support base, and the support base flipping drive mechanism is connected to the support base to drive the support base to flip around the support base rotation axis, which is along the axial direction of the cylinder placed on the support base. As a preferred technical solution, the feeding mechanism further includes a feeding conveyor belt, and the feeding frame is provided with a placement platform at the end of the feeding ramp away from the cylinder support and flipping mechanism, and the feeding conveyor belt is connected to the placement platform; the placement platform is provided with a bottle pushing mechanism for pushing the cylinders on the placement platform into the feeding ramp.

[0008] As a preferred technical solution, the feeding mechanism further includes a plurality of blocking mechanisms, which are spaced apart along the length of the feeding inclined surface to form the storage bin. Each blocking mechanism includes a baffle and a baffle lifting mechanism. The baffle is vertically arranged, and the baffle lifting mechanism is connected to the baffle to drive the baffle to rise and fall.

[0009] As a preferred technical solution, the baffle mechanism further includes a fixing plate, which is fixedly disposed at the lower part of the baffle. After the baffle is lowered, the fixing plate at least partially surrounds the outside of the gas cylinder.

[0010] As a preferred technical solution, the cylinder support and tilting mechanism further includes a base and a lifting seat. The support seat lifting drive mechanism includes a support seat lifting motor, which is mounted on the base and connected to the lifting seat to drive the lifting seat to lift. A set of bearing seats is fixedly mounted on the lifting seat, and the support seat shaft is rotatably connected to the set of bearing seats through bearings. The support seat is fixedly connected to the support seat shaft. The support seat tilting drive mechanism includes a support seat tilting cylinder, which is hingedly mounted on the lifting seat, and the movable end of the support seat tilting cylinder is rotatably connected to the support seat.

[0011] As a preferred technical solution, the unloading mechanism further includes an unloading conveyor belt, which is located at the lower end of the unloading inclined plane and connected to the unloading inclined plane.

[0012] As a preferred technical solution, the support base is provided with at least one suction cup seat, and the suction cup seat is connected to an air extraction device to adsorb the gas cylinder onto the support base.

[0013] As a preferred technical solution, the feeding mechanism includes a feeding seat, a feeding seat tilting cylinder, and a feeding seat translation module; the feeding seat is disposed at the lower end of the feeding inclined surface to receive the steel cylinder, and the feeding seat is rotatably connected to the feeding seat mounting plate via a feeding seat rotating shaft; the feeding seat tilting cylinder is fixedly mounted on the feeding seat mounting plate, and the movable end of the feeding seat tilting cylinder is rotatably connected to the feeding seat; the feeding seat translation module is connected to the feeding seat mounting plate to drive the feeding seat mounting plate to translate along the inclined direction of the feeding inclined surface.

[0014] Compared with the prior art, the beneficial effects of this application are as follows: This application, by placing both the feeding and unloading mechanisms behind the cylinder support and tilting mechanism, completely exposes and empties the areas in front of the left and right clamps. When operators adjust the clamps on both sides to return the cylinder to a horizontal clamping position, they can operate the machine unimpeded from the front and sides of the equipment, observing the welding status and other daily work, completely avoiding the risk of obstruction or collision by the feeding device, fundamentally eliminating safety hazards. It also makes debugging and maintenance more convenient and efficient, and contributes to a neat and orderly overall production line layout. This application, through multi-compartment storage feeding, can buffer uneven and discontinuous material flow on the production line, adjusting the production rhythm and ensuring the machine is always in a material-rich welding state for a period of time.

[0015] This application, through its rear-feed and rear-discharge layout, creates a clear and smooth unidirectional material flow. Gas cylinders are fed from the rear and discharged from the rear after welding, ensuring a smooth process and avoiding material flow intersections or interference problems that may exist in traditional layouts. This facilitates the integration of automated production lines. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the storage-type rear-feed circumferential welder for this application; Figure 2 This is a structural schematic diagram of the material storage type rear-feed circumferential welder of this application, viewed from the rear. Figure 3 This is a schematic diagram of the cylinder support and tilting mechanism of this application; Figure 4 This is a schematic diagram of the feeding mechanism and unloading structure of this application; The components include: 1. Storage-type rear-feed circumferential welding machine; 11. Left clamp; 12. Right clamp; 13. Welding mechanism; 14. Cylinder support and tilting mechanism; 141. Support seat; 142. Base; 143. Lifting seat; 144. Support seat lifting motor; 145. Bearing seat; 146. Support seat rotating shaft; 147. Support seat tilting cylinder; 148. Suction cup seat; 15. Feeding mechanism; 151. Feeding frame; 1511. Feeding... 1512 Inclined surface; 152 Placement platform; 152 Loading seat; 1521 Loading seat rotating shaft; 153 Loading seat tilting cylinder; 154 Loading seat translation module; 155 Loading seat mounting plate; 156 Feeding conveyor belt; 157 Bottle pushing cylinder; 158 Baffle; 159 Baffle lifting cylinder; 1510 Fixed plate; 16 Unloading mechanism; 161 Unloading frame; 1611 Unloading inclined surface; 162 Unloading conveyor belt. Detailed Implementation

[0017] To enable those skilled in the art to better understand the present application, the technical solutions in specific embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0018] like Figure 1 and Figure 2 As shown, this application provides a storage-type rear-feed circumferential welder 1, which includes: a left clamp 11 and a right clamp 12, a welding mechanism 13, a cylinder support and flipping mechanism 14, a feeding mechanism 15, and a unloading mechanism 16.

[0019] The left clamp 11 and right clamp 12 are arranged opposite each other, and are used to clamp the two ends of the cylinder and drive the cylinder to rotate. During the rotation of the cylinder, the welding mechanism 13 performs circumferential welding on the cylinder. The welding mechanism 13 is prior art, and its structure will not be described in detail in this embodiment. For example, the welding mechanism 13 can be referred to as the "welding head" in Chinese Patent, Publication No.: CN106216816A, Publication Date: December 14, 2016, entitled "Fully Automated LPG Cylinder Circumferential Welding Machine with Vision Tracker".

[0020] like Figure 3 As shown, the cylinder support and tilting mechanism 14 includes a support base 141, a support base tilting drive mechanism, and a support base lifting drive mechanism. The support base 141 is positioned between the left clamp 11 and the right clamp 12. The cross-section of the support base 141 is shaped like a "︺", which better accommodates and supports cylindrical cylinders and provides automatic centering. The support base lifting drive mechanism connects to the lifting of the support base 141. The support base tilting drive mechanism connects to the support base 141 to drive the support base 141 to tilt around a support base pivot 146, which is along the axial direction of the cylinder placed on the support base 141.

[0021] Furthermore, the cylinder support and tilting mechanism 14 also includes a base 142 and a lifting seat 143. The support seat lifting drive mechanism includes a support seat lifting motor 144, which is mounted on the base 142 and connected to the lifting seat 143 to drive the lifting seat 143 to lift. A set of bearing seats 145 is fixedly mounted on the lifting seat 143, and the support seat rotating shaft 146 is rotatably connected to the set of bearing seats 145 via bearings. The support seat 141 is fixedly connected to the support seat rotating shaft 146. The support seat tilting drive mechanism includes a support seat tilting cylinder 145, which is hinged to the lifting seat 143, and its movable end is rotatably connected to the support seat 141. It should be noted that the support seat tilting cylinder 145 can also be replaced by a support seat tilting motor.

[0022] Furthermore, the support base 141 is provided with at least one suction cup seat 148, which is connected to a vacuum pump to adhere the gas cylinder to the support base 141, thereby enabling the gas cylinder to be stably supported by the support base 141. In this application, the vacuum pump is a vacuum pump or the like.

[0023] like Figure 4 As shown, the feeding mechanism 15 is located behind the support base 141. The feeding mechanism 15 includes a feeding frame 151 and a feeding mechanism. The feeding frame 151 has a feeding ramp 1511 that slopes downward toward the support base 141. The feeding mechanism is located at the lower end of the feeding ramp 1511 to move the steel cylinder on the feeding ramp 1511 and place it on the support base 141.

[0024] Furthermore, the feeding mechanism includes a feeding seat 152, a feeding seat tilting cylinder 153, and a feeding seat translation module 154. The feeding seat 152 is located at the lower end of the feeding ramp 1511 to receive the steel cylinder, and the feeding seat 152 is rotatably connected to the feeding seat mounting plate 155 via a feeding seat rotating shaft 1521. The feeding seat tilting cylinder 153 is fixedly mounted on the feeding seat mounting plate 155, and the movable end of the feeding seat tilting cylinder 153 is rotatably connected to the feeding seat 152. It should be noted that the feeding seat tilting cylinder 153 can also be replaced by a feeding seat tilting motor. The feeding seat translation module 154 is connected to the feeding seat mounting plate 155 to drive the feeding seat mounting plate 155 to translate along the inclined direction of the feeding ramp 1511 to the clamp support seat 141.

[0025] Furthermore, the feeding mechanism 15 also includes a feeding conveyor belt 156. The feeding frame 151 has a placement platform 1512 at the end of the feeding ramp 1511 away from the support base 141, and the feeding conveyor belt 156 is connected to the placement platform 1512. The placement platform 1512 is equipped with a bottle-pushing mechanism for pushing the cylinders on the placement platform 1512 into the feeding ramp 1511. In this application, the bottle-pushing mechanism uses a bottle-pushing cylinder 157.

[0026] Furthermore, the feeding mechanism 15 also includes several blocking mechanisms, which are spaced apart along the length of the feeding inclined surface 1511. Each blocking mechanism includes a baffle 158 and a baffle lifting mechanism. The baffle 158 is vertically arranged, and the baffle lifting mechanism connects to the baffle 158 to drive it to rise or fall. In this application, the baffle lifting mechanism uses a baffle lifting cylinder 159. In this application, there are four sets of blocking mechanisms, each set blocking one cylinder from falling. The vertically arranged baffles 158 in pairs form a regular storage bin.

[0027] During the production process of circumferential welding of steel cylinders, the feeding and conveying of steel cylinders on the feeding conveyor belt 156 is usually discontinuous and uneven. Since the circumferential welding of each steel cylinder requires a certain amount of time, there may be situations where there are no steel cylinders to be welded at the welding mechanism 13, or steel cylinders are squeezed and piled up on the feeding conveyor belt 156, resulting in low production efficiency of the storage-type post-feeding circumferential welding machine 1.

[0028] This application establishes storage bins by setting up several material-blocking mechanisms, enabling the feeding mechanism 15 to function as a cylinder storage unit. During feeding, the baffle 158 of the lowest material-blocking mechanism is raised, causing the lowest cylinder to roll onto the feeding seat 152 of the feeding mechanism. Then, the material-blocking mechanisms from bottom to top operate sequentially, causing each cylinder on the feeding ramp 1511 to roll down one unit. This ensures continuous and uniform cylinder feeding, allowing the welding mechanism 13 to operate continuously, thereby improving the production efficiency of the feeding circumferential welder 1.

[0029] In addition, each material-blocking mechanism also acts as a buffer when the gas cylinder falls.

[0030] Furthermore, the baffle mechanism also includes a fixing plate 1510, which is fixedly disposed at the lower part of the baffle 159. After the baffle 159 is lowered, the fixing plate 1510 at least partially surrounds the outside of the gas cylinder. The fixing plate 1510 is used to prevent the gas cylinder from tilting or shaking. In this application, the fixing plate 1510 is a straight plate, which forms an acute angle with the baffle 159; or, the fixing plate 1510 is two connected straight plates, which form an obtuse angle with each other, and the straight plate connected to the baffle 159 forms an acute angle with the baffle 159. It should be noted that the fixing plate 1510 can also be other shapes, such as an arc, as long as it can serve the purpose of fixing the gas cylinder.

[0031] The unloading mechanism 16 is located behind the support base 141. The unloading mechanism 16 includes an unloading frame 161, which is located below the feeding frame 151. The unloading frame 161 has an unloading ramp 1611 that slopes downward from the support base 141.

[0032] Furthermore, the unloading mechanism 16 also includes an unloading conveyor belt 162, which is located at the lower end of the unloading ramp 1611 and is connected to the unloading ramp 1611.

[0033] It should be noted that several of the aforementioned storage-type post-feeding circumferential welding machines 1 can be set up, arranged side by side in the left-right direction to form a production line for cylinder circumferential welding. In this production line, operators can move freely back and forth in front of the line to ensure unimpeded operation of each storage-type post-feeding circumferential welding machine 1.

[0034] The operating method of the storage-type rear-feed circumferential welder 1 described in this application is as follows: Step 1: Orderly feeding and precise positioning. 1. Conveying and Positioning: The feeding conveyor belt 156 starts, continuously conveying the steel cylinders to be welded to the placement platform 1512 of the feeding mechanism. Subsequently, the bottle pushing cylinder 157 is activated, smoothly pushing the steel cylinders on the placement platform 1512 into the feeding inclined surface 1511 with a certain inclination angle.

[0035] 2. Storage and Stepped Feeding: Multiple independent blocking mechanisms are installed on the feeding ramp 1511. After the cylinders enter, they are separated and temporarily stored by these blocking mechanisms, forming an orderly storage queue. During feeding, the control system issues a command, and the baffle 158 at the bottom blocking mechanism rises first, allowing the individual cylinder at that position to roll precisely onto the feeding seat 152 of the feeding mechanism below under gravity. After the cylinder is released, its baffle 158 immediately resets. Immediately afterwards, the control system triggers a chain control signal from bottom to top, causing the adjacent blocking mechanisms above to open and close briefly in sequence, causing each cylinder on the feeding ramp 1511 to roll down one station, automatically filling the empty space below. This process realizes a stepped, pulsed supply of cylinders, avoiding disorderly accumulation and collisions, and ensuring the rhythm and reliability of feeding.

[0036] Step 2: Flexible feeding and posture conversion 3. Precise transfer: After receiving the signal that the cylinder is in place on the loading seat 152, the loading seat translation module 154 precisely drives the loading seat 152 and the cylinder on it to move horizontally until the cylinder axis is aligned with the axis of the support seat 141 of the welding station, and the loading seat 152 is close to the support seat 141 in the raised state.

[0037] 4. Smooth Tilting and Transfer: The tilting cylinder 153 of the loading seat is activated, driving the loading seat 152 to perform a controllable tilting motion, changing the cylinder from a horizontal position to an upright position or the required welding posture, and then smoothly and accurately rolling or transitioning it onto the support seat 141 that is already in the support position using gravity or auxiliary guiding devices. This tilting action is gentle and effectively prevents scratches on the surface of the cylinder.

[0038] Step 3: Stable clamping and welding preparation 5. Vacuum adsorption fixation: When the suction cup seat 148 on the support base 141 is energized, a negative pressure is generated, which firmly adsorbs the bottom or designated part of the gas cylinder, realizing the initial positioning and fixation of the gas cylinder and preventing slippage during subsequent clamping.

[0039] 6. Cooperative clamping of the main shaft clamps: The left clamp 11 on the left side of the equipment and the right clamp 12 on the right side move simultaneously towards the center under the action of the drive device, accurately and reliably clamping both ends of the steel cylinder or the designated clamping position. After confirming that the clamping force has reached the set value, the support base 141 descends under the drive of the lifting device, and the suction cup seat 148 on it breaks the vacuum to release the steel cylinder, so that the weight of the steel cylinder and the welding reaction force are completely borne by the left and right clamps.

[0040] Step 4: High-quality and efficient circumferential weld. 7. Synchronous Rotary Welding: Driven by the rotary drive mechanism, the left clamp 11 and right clamp 12 synchronously drive the gas cylinder to rotate at a preset, constant speed. Simultaneously, the welding mechanism 13 precisely positions itself to the weld start point according to a preset program and automatically completes the entire process of arc initiation, welding, and arc termination. During welding, welding parameters can be adjusted in real time to ensure uniform circumferential weld formation and stable quality.

[0041] Step 5: Welding completed and automated unloading. 8. Post-weld support and release: After the welding process is completed, the support base 141 immediately rises to support the cylinder again. Subsequently, the left clamp 11 and the right clamp 12 release simultaneously, releasing the cylinder from its grip.

[0042] 9. Automatic tilting and unloading: The support base tilting cylinder 145 drives the support base 141 to tilt towards the unloading side, so that the welded steel cylinder rolls smoothly onto the unloading slope 1611 of the unloading mechanism 16 by gravity.

[0043] 10. End output: The cylinder slides along the unloading ramp 1611 into the unloading conveyor belt 162, and the unloading conveyor belt 162 transports the finished cylinder away from the working area, completing the entire processing cycle.

[0044] The operating method described in this application has the following beneficial effects: 1. A groundbreaking "rear-in, rear-out" unidirectional logistics layout: By centrally arranging the feeding mechanism 15 and the unloading mechanism 16 behind the support base 141, a complete revolution in material flow is achieved. This layout allows the area in front of the equipment and on both sides to be completely open, without any obstruction from conveying mechanisms. When operators need to adjust the centering of the left clamp 11 and the right clamp 12, replace clamps, or perform routine maintenance, they can approach and operate the equipment from the front and both sides without obstruction, fundamentally eliminating the safety hazards such as collision risks and operational inconveniences caused by the operation space being occupied by the feeding / unloading devices in traditional side-in, side-out or front-forward, front-out layouts. This layout greatly improves the safety, accessibility, and maintainability of the equipment.

[0045] 2. Highly Optimized Operational Efficiency and Ergonomics: A clear unidirectional material flow (rear loading → welding station → rear unloading) avoids material cross-flow and waiting, resulting in a smooth operation process and clear cycle time, which is particularly beneficial for integration into automated production lines. Simultaneously, placing the feeding and unloading mechanisms at the rear of the equipment and the areas requiring manual intervention at the spacious front achieves best practices in ergonomics, ensuring both the efficiency of automated operation and providing ultimate convenience for manual operation.

[0046] 3. Fundamental Design Enhancement for Safety and Ease of Maintenance: This operating method incorporates safety enhancements resulting from the equipment layout. Operators no longer need to work in confined spaces or areas with the risk of moving parts, making commissioning and maintenance safer, more convenient, and faster.

[0047] It should be noted that the terms "first," "second," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, "a" or "one," and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. "A plurality" or "several" indicates at least two. Unless otherwise stated, terms such as "front," "back," "left," "right," "lower," and / or "upper" are for illustrative purposes only and are not limited to a location or spatial orientation. Terms such as "comprising" or "including" indicate that the elements or objects preceding "comprising" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0048] The singular forms “a,” “the,” and “the” used in this application specification and appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0049] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A storage-type, rear-feed circumferential welder, characterized in that, The storage-type rear-feed circumferential welder includes: Cylinder support and tilting mechanism; The feeding mechanism is located behind the cylinder support and tilting mechanism. The feeding mechanism includes a feeding frame and a feeding mechanism. The feeding frame has a feeding ramp that slopes downward toward the cylinder support and tilting mechanism. Multiple storage bins are provided on the feeding ramp. The feeding mechanism is located at the lower end of the feeding ramp to place the cylinders on the feeding ramp onto the cylinder support and tilting mechanism. The unloading mechanism is located behind the cylinder support and tilting mechanism. The unloading mechanism includes an unloading frame located below the feeding frame. The unloading frame has an unloading ramp that slopes downward from the support base.

2. The storage-type rear-feed circumferential welder according to claim 1, characterized in that, The storage-type rear-feed circumferential welder also includes: A left clamp and a right clamp, wherein the left clamp and the right clamp are arranged opposite each other. The cylinder support and flipping mechanism includes a support base, a support base flipping drive mechanism, and a support base lifting drive mechanism. The support base is disposed between the left clamp and the right clamp. The cross-section of the support base is "︺". The support base lifting drive mechanism is connected to the support base for lifting. The support base flipping drive mechanism is connected to the support base to drive the support base to flip around the support base rotation axis. The support base rotation axis is along the axial direction of the cylinder placed on the support base.

3. The storage-type rear-feed circumferential welder according to claim 1 or 2, characterized in that, The feeding mechanism also includes a feeding conveyor belt, and the feeding frame is provided with a placement platform at one end of the feeding ramp away from the cylinder support and flipping mechanism. The feeding conveyor belt is connected to the placement platform. The placement platform is provided with a bottle pushing mechanism for pushing the cylinders on the placement platform into the feeding ramp.

4. The storage-type rear-feed circumferential welder according to claim 1 or 2, characterized in that, The feeding mechanism further includes a plurality of material blocking mechanisms, which are spaced apart along the length of the feeding inclined surface to form the storage bins. Each material blocking mechanism includes a baffle and a baffle lifting mechanism. The baffle is vertically arranged, and the baffle lifting mechanism is connected to the baffle to drive the baffle to rise and fall.

5. The storage-type rear-feed circumferential welder according to claim 4, characterized in that, The baffle mechanism also includes a fixing plate, which is fixedly installed at the lower part of the baffle. After the baffle is lowered, the fixing plate at least partially surrounds the outside of the gas cylinder.

6. The storage-type rear-feed circumferential welder according to claim 2, characterized in that, The cylinder support and tilting mechanism also includes a base and a lifting seat. The support seat lifting drive mechanism includes a support seat lifting motor, which is mounted on the base and connected to the lifting seat to drive the lifting seat to lift. A set of bearing seats is fixedly installed on the lifting seat, and the support seat shaft is rotatably connected to the set of bearing seats through bearings. The support seat is fixedly connected to the support seat shaft. The support base flipping drive mechanism includes a support base flipping cylinder, which is hinged to the lifting base, and the movable end of the support base flipping cylinder is rotatably connected to the support base.

7. The storage-type rear-feed circumferential welder according to claim 1, characterized in that, The unloading mechanism also includes an unloading conveyor belt, which is located at the lower end of the unloading ramp and is connected to the unloading ramp.

8. The storage-type rear-feed circumferential welder according to claim 2, characterized in that, The support base is provided with at least one suction cup seat, and the suction cup seat is connected to an air extraction device to adsorb the gas cylinder onto the support base.

9. The storage-type rear-feed circumferential welder according to claim 1 or 2, characterized in that, The feeding mechanism includes a feeding seat, a feeding seat tilting cylinder, and a feeding seat translation module. The feeding seat is located at the lower end of the feeding slope to receive the gas cylinder. The feeding seat is rotatably connected to the feeding seat mounting plate via a feeding seat rotating shaft. The feeding seat tilting cylinder is fixedly installed on the feeding seat mounting plate, and the movable end of the feeding seat tilting cylinder is rotatably connected to the feeding seat. The feeding seat translation module is connected to the feeding seat mounting plate to drive the feeding seat mounting plate to translate along the inclined direction of the feeding slope.

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