Can conveying and pushing device for electric resistance welding can body welding machine
By coordinating the movement of the can conveying mechanism and the can pushing mechanism, the problem of unstable can pushing in the resistance welding can body welding machine is solved, realizing stable and damage-free can pushing, and improving welding quality and adaptability.
Patent Information
- Application Number
- CN202522387744.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-11
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-11-11
AI Technical Summary
Existing resistance welding tank body welding machines experience unstable tank pushing during high-speed tank feeding, which can easily lead to tilting and shaking, resulting in welding defects and uneven tank bodies. In particular, they are prone to cracking when used with materials that have high hardness and poor toughness.
The device employs a can delivery and pushing mechanism that includes a can conveying mechanism and a can pushing mechanism. Through the coordinated movement of the can delivery claws and the can pushing claws, the can is pushed stably and without damage. The three-point pushing method ensures that the can enters the welding area in a regular posture. Combined with height and position adjustment components, it can adapt to different can types.
It enables high-speed, stable, and damage-free pushing of the tank, reduces welding defects, ensures weld uniformity and sealing, adapts to different tank types, and improves welding quality.
Smart Images
Figure CN223656223U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to metal can equipment technical field, concretely relates to a send tank and push tank device for resistance welding can body welding machine. BACKGROUND
[0002] Resistance welding can body welding machine is the key equipment in can industry, is mainly used in the can cylinder that the metal plate (such as tinplate) is rolled, is welded to form the can body of three pieces of can.In this process, the can cylinder that the circular device is rolled out needs to be reliably pushed to the upper and lower welding wheel between and is welded to the lap joint.
[0003] At present, the existing resistance welding can body welding machine adopts the lower push tank mechanism system to send the can cylinder (cylindrical can body) that the circular device is rolled out to the gage before, and the existing lower push tank mechanism system generally adopts the knock tank arm of swing cylinder or cam drive to knock the rear end surface of can cylinder, utilizes the inertia of can cylinder to make it enter the welding wheel area.However, this "knocking type" pushing mode has the following shortcomings: (1) its push tank action is not stable, and the can cylinder is easy to incline, shake or even deform in the pushing process, especially when high-speed sending tank (for example, pursuing 1000 revolutions / minute and above production efficiency), the stability is poorer;(2) the instability in the pushing process makes the posture and position of can cylinder deviate when reaching the welding wheel, which will directly lead to unstable lap joint amount of welding seam, and is easy to appear welding defects, such as virtual welding, leakage welding, overwelding or spatter.At the same time, it is easy to cause the unevenness of both ends of can body, that is, the so-called "long and short can" phenomenon, which seriously affects the quality of subsequent flanging, capping and other processes of can body;(3) since it is instantaneous impact, for the DR iron material with higher hardness and poorer toughness, the traditional impact type pushing mode is more likely to cause cracks in the welding seam area or can body. UTILITY MODEL CONTENTS
[0004] The utility model wants to solve the technical problem to provide a send tank and push tank device for resistance welding can body welding machine, and the send tank and push tank device can automatically push the can cylinder to the gage for welding stably and accurately, realize high-speed, stable and non-damage can cylinder pushing, and be favorable for guaranteeing the stability and quality of subsequent can cylinder welding.The technical scheme adopted is as follows:
[0005] A kind of pusher for resistance welding can body welding machine, it is characterized by: including frame, can cylinder conveying mechanism and lower pusher mechanism;The can cylinder conveying mechanism includes pusher rail, two conveying chain mechanisms and multiple pusher claw pairs, pusher rail is installed on frame and is arranged along front-back direction, two conveying chain mechanisms are left and right side by side and arranged in the two sides of pusher rail, conveying chain mechanism has the transmission section moving from front to back;Multiple pusher claw pairs are evenly arranged along the running direction of two conveying chain mechanisms, each pusher claw pair includes two pusher claws that are symmetrically arranged left and right, two pusher claws are respectively installed on two conveying chain mechanisms;The lower pusher mechanism includes lower pusher claw, lower pusher claw drive mechanism for driving lower pusher claw to push towards rear upper, lower pusher claw drive mechanism is installed on frame, lower pusher claw is arranged at the rear section of pusher rail, and lower pusher claw and the two pusher claws of the two pusher claw pairs on the rear section of two transmission sections are triangularly distributed.
[0006] Specifically, the lower pusher claw is arranged at the bottom of the rear section of the pusher rail and between the two pusher claws of the two pusher claw pairs on the rear section of the two transmission sections, and the lower pusher claw, the two pusher claws are respectively located at the three corners of the inverted triangle.
[0007] Generally, the above-mentioned pusher is arranged between the rounding device and the sizing gauge in the resistance welding can body welding machine, for conveying the can cylinder rolled out by the rounding device into the sizing gauge for welding. The front and the rear respectively refer to: along the conveying direction of the can cylinder, first to the front, and slow to the rear.
[0008] When working, the can cylinder conveying mechanism receives the can cylinder rolled out from the rounding device through the can cylinder track, the two conveying chain mechanisms are synchronously operated, a plurality of can cylinders are pushed to move along the can cylinder track from front to back through each can cylinder pushing claw pair on the transmission section of the conveying chain mechanism, each can cylinder pushing claw pair pushes one can cylinder, and the can cylinders are conveyed to the rear section of the can cylinder track and in front of the diameter gauge one by one; when each can cylinder conveyed by the can cylinder conveying mechanism reaches the rear section of the can cylinder track and is in front of the diameter gauge, the downward pushing claw driving mechanism drives the downward pushing claw to push upward and rearward, so that the downward pushing claw pushes the lower vertex of the can cylinder, and the downward pushing claw and the can cylinder pushing claw pair on the rear section of the transmission section constitute three points for pushing the can cylinder (just like holding a cup stably with three fingers), so that the can cylinder is pushed into the diameter gauge for welding, and the stability and quality of welding are ensured; subsequently, the downward pushing claw driving mechanism drives the downward pushing claw to swing forward and downward and reset, so as to push the next can cylinder reaching the rear section of the can cylinder track, so that the can cylinder pushing and conveying device can stably push the can cylinder into the diameter gauge for welding in a regular cylindrical shape, high-speed, stable and damage-free pushing of the can cylinder is realized, stable pushing means that the can body can enter the welding wheel in a more ideal posture and speed, which can significantly reduce welding defects caused by poor pushing, such as unstable lap joint amount of the welding seam, uneven ends of the can body (commonly known as "long and short cans"), and even cracks of the can body, which is beneficial to ensure the stability and quality of subsequent can cylinder welding, and ultimately reflects that the welding seam is more uniform, smooth and flat, and the sealing performance is better.
[0009] As a preferred scheme of the utility model, the can cylinder conveying mechanism further comprises a can cylinder conveying motor and a plurality of transmission shafts, the can cylinder conveying motor is installed on the frame, each transmission shaft is rotatably installed on the frame and has a left-right orientation, and one transmission shaft is in transmission connection with the output shaft of the can cylinder conveying motor; the conveying chain mechanism comprises a ring chain and a plurality of transmission sprockets, each transmission sprocket is fixedly installed on the corresponding transmission shaft and jointly tensions the ring chain; each can cylinder pushing claw pair on the same side is installed on the same ring chain and is uniformly arranged in sequence along the running direction of the ring chain. When working, the transmission shaft connected with the can cylinder conveying motor is driven by the can cylinder conveying motor, and the remaining transmission shafts are cooperated to drive the two ring chains and the can cylinder pushing claws thereon to run through the transmission sprockets of the two conveying chain mechanisms.
[0010] As a preferred scheme of the utility model, the lower push jar claw drive mechanism comprises a support seat, a front rotating shaft, a rear rotating shaft, a rotating shaft drive mechanism for driving the front rotating shaft and the rear rotating shaft to rotate in the same direction, a first front connecting rod, a connecting arm, a second front connecting rod, a first rear connecting rod, a second rear connecting rod and a movable seat, the support seat is installed on the rack, the rotating shaft drive mechanism is installed on the support seat, the front rotating shaft and the rear rotating shaft are rotatably installed on the support seat and are arranged side by side in front and back, the front rotating shaft and the rear rotating shaft are left-right oriented, the first end of the first front connecting rod is hinged to the front rotating shaft, the connecting arm is V-shaped, the front end of the connecting arm is hinged to the second end of the first front connecting rod, the middle part of the connecting arm is hinged to the front part of the movable seat, the lower end of the second front connecting rod is hinged to the rear end of the connecting arm, the upper end of the second front connecting rod is hinged to the support seat, the first end of the first rear connecting rod is hinged to the rear rotating shaft, the lower end of the second rear connecting rod is hinged to the second end of the first rear connecting rod, and the upper end of the second rear connecting rod is hinged to the rear part of the movable seat; the lower push jar claw is installed on the movable seat. When working, the rotating shaft drive mechanism drives the front rotating shaft and the rear rotating shaft to rotate in the same direction, and the movable seat and the lower push jar claw thereon are driven by the first front connecting rod, the second front connecting rod, the first rear connecting rod, the connecting arm and the second rear connecting rod to make a rotary motion, first move rearward and upward, so that the lower push jar claw is pushed to the lower vertex of the jar cylinder, then swing forward and downward, so that the position is lower than the rear section of the jar conveying rail, and the next jar conveying claw is not affected to push the next jar cylinder to the rear section of the jar conveying rail.
[0011] As a further preferred scheme of the utility model, the support seat is installed on the rack through a height position adjusting assembly, and the lower push jar claw is installed on the movable seat through a front-rear position adjusting assembly. By adopting the structure, the height position of the support seat can be adjusted through the height position adjusting assembly, the relative position of the lower push jar claw in the front-rear direction of the movable seat can be adjusted through the front-rear position adjusting assembly, so that the lower push jar claw drive mechanism can be suitable for pushing jar cylinders with different jar heights and jar diameters.
[0012] As a still further preferred scheme of the utility model, the height position adjusting assembly comprises two vertical guide rails, an adjusting screw rod, an operating handle and an adjusting nut, the two vertical guide rails are installed on the rack and arranged side by side in left and right, and the two side parts of the support seat are installed on the two vertical guide rails and slide-fitted with the two vertical guide rails; the adjusting screw rod is rotatably installed on the rack and parallel to the vertical guide rails, the adjusting nut is installed on the support seat and engaged with the adjusting screw rod, and the operating handle is fixedly installed on the adjusting screw rod. When in use, the adjusting screw rod can be driven to rotate forward or reversely by rotating the operating handle, the adjusting screw rod and the adjusting nut are engaged, the support seat is driven to ascend or descend by a certain height along the two vertical guide rails, so that the overall height position of the lower push jar claw drive mechanism can be adjusted.
[0013] As a further preferred embodiment of this utility model, the front-to-back position adjustment assembly includes an adjustment guide rail and an adjustment block. The adjustment guide rail is disposed on the movable seat and runs in a front-to-back direction. The adjustment block is mounted on the adjustment guide rail and slides in cooperation with it. The adjustment block has a locking screw hole, in which a locking bolt is installed. The end of the locking bolt's screw is in close contact with the adjustment guide rail. The lower pusher claw is connected to the adjustment block. When it is necessary to adjust the relative position of the lower pusher claw in the front-to-back direction of the movable seat, the locking bolt can be loosened first, then the adjustment block can be slid forward or backward along the adjustment guide rail to the target position, and then the locking bolt can be tightened so that the end of the locking bolt's screw is in close contact with the adjustment guide rail.
[0014] As a further preferred embodiment of this utility model, the rotating shaft drive mechanism includes a rotating shaft drive motor, a drive shaft, a drive pulley, an annular synchronous belt, and two driven pulleys. The rotating shaft drive motor is mounted on the support base. The drive shaft is rotatably mounted on the support base and is connected to the output shaft of the rotating shaft drive motor. The drive pulley is fixedly mounted on the drive shaft. The two driven pulleys are respectively fixedly mounted on the front and rear rotating shafts. The drive pulley and the two driven pulleys are all located inside the annular synchronous belt and work together to tension the annular synchronous belt. During operation, the rotating shaft drive motor drives the drive shaft and the drive pulley to rotate, which in turn drives the front and rear rotating shafts to rotate in the same direction via the annular synchronous belt and the two driven pulleys.
[0015] To further improve the stability of can pushing, the aforementioned can feeding and pushing device may also include an upper can pushing mechanism. The upper can pushing mechanism includes an upper can pushing claw and an upper can pushing claw drive mechanism for driving the upper can pushing claw to push downwards and backwards. The upper can pushing claw drive mechanism can be fixed on the welding machine and can adopt the same structure as the lower can pushing claw drive mechanism. When the lower can pushing mechanism pushes the lower apex of the can, the upper can pushing claw drive mechanism drives the upper can pushing claw to push the upper apex of the can. This allows for multi-point cooperation in can pushing, further effectively reducing the risk of tilting, shaking, or deformation of the can body (bulk can) during the pushing process.
[0016] Compared with the prior art, this utility model has the following advantages:
[0017] (1) This can feeding and pushing device is used on the can body conveying mechanism of the resistance welding can body welding machine. It can push the can cylinder in a regular cylindrical shape and stably into the sizing gauge for welding, realizing high-speed, stable and damage-free can cylinder pushing. Stable pushing means that the can cylinder can enter the welding wheel in a more ideal posture and speed. This can significantly reduce welding defects caused by poor pushing, such as unstable weld overlap, uneven can body ends (commonly known as "long and short cans"), or even can body cracks. It is beneficial to ensure the stability and quality of subsequent can cylinder welding, and ultimately manifests as a more uniform, smooth and flat weld, and better sealing.
[0018] (2) This can feeding and pushing device uses the rotational motion of the can pushing claw to form a three-point can pushing on the can cylinder in conjunction with the can feeding claws located at the rear of the two conveying sections. This makes the pushing of the can cylinder more stable and the force more uniform. Compared with the "hard impact" that may exist in some traditional mechanisms, the movement trajectory of the can pushing claw can be smoother, and even make "speed change" movements (such as decelerating at the moment of contact with the can body), thereby reducing the impact force on the can body and avoiding indentation or cracks in thin-walled can bodies. Moreover, the position of the can pushing claw can be adjusted according to the can height and can diameter of different can types, making it more adaptable and flexible to meet the needs of rapid production changeover. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the can feeding and pushing device according to a preferred embodiment of the present invention.
[0020] Figure 2 yes Figure 1 The front view of the can feeding and pushing device shown.
[0021] Figure 3 yes Figure 2 Top view.
[0022] Figure 4 yes Figure 1 The diagram shows the cooperation between the lower can-pushing mechanism and the can cylinder on the can-conveying mechanism in the can-feeding and pushing device.
[0023] Figure 5 yes Figure 1 The diagram shows the structure of the lower can-pushing mechanism in the can-feeding and can-pushing device.
[0024] Figure 6 yes Figure 5 The diagram shows the can-pushing mechanism from another perspective. Detailed Implementation
[0025] like Figures 1-6As shown, this can feeding and pushing device for a resistance welding can body includes a frame 1, a can conveying mechanism 2, and a can pushing mechanism 3. The can conveying mechanism 2 includes a can feeding rail 21, two conveyor chain mechanisms 22, and multiple can feeding claw pairs 23. The can feeding rail 21 is mounted on the frame 1 and arranged in the front-to-back direction. The two conveyor chain mechanisms 22 are arranged side by side on both sides of the can feeding rail 21. Each conveyor chain mechanism 22 has a conveying section 2201 that moves from front to back and a return section 2202 located below it. The multiple can feeding claw pairs 23 are evenly arranged along the running direction of the two conveyor chain mechanisms 22. Each can feeding claw pair 23 includes left and right pairs. The device is equipped with two can-feeding claws 231, which are respectively mounted on two conveyor chain mechanisms 22. The can-pushing mechanism 3 includes a can-pushing claw drive mechanism 31 and a can-pushing claw 32. The can-pushing claw drive mechanism 31 includes a support base 311, a front rotating shaft 312, a rear rotating shaft 313, a shaft drive mechanism 314 for driving the front rotating shaft 312 and the rear rotating shaft 313 to rotate in the same direction, a first front connecting rod 315, a second front connecting rod 316, a first rear connecting rod 317, a connecting arm 318, a second rear connecting rod 319, and a movable seat 310. The support base 311 is mounted on the frame 1, and the shaft drive mechanism 314 is mounted on the support base 311. On the support base 311, both the front rotating shaft 312 and the rear rotating shaft 313 are rotatably mounted on the support base 311 and arranged side by side. Both the front rotating shaft 312 and the rear rotating shaft 313 run left and right. The first end of the first front connecting rod 315 is hinged to the front rotating shaft 312. The connecting arm 318 is V-shaped. The front end of the connecting arm 318 is hinged to the second end of the first front connecting rod 315, and the middle part of the connecting arm 318 is hinged to the front part of the movable seat 310. The lower end of the second front connecting rod 316 is hinged to the rear end of the connecting arm 318, and the upper end of the second front connecting rod 316 is hinged to the support base 311. The first end of the first rear connecting rod 317 is hinged to the rear rotating shaft 312. 13. The lower end of the second rear connecting rod 319 is hinged to the second end of the first rear connecting rod 317, and the upper end of the second rear connecting rod 319 is hinged to the rear part of the movable seat 310. The push-down can claw 32 is installed on the movable seat 310. The push-down can claw 32 is located at the bottom of the rear section of the can feeding rail 21. The push-down can claw 32 is located between the two can feeding claws 231 of the can feeding claw pair 23 on the rear section of the two conveying sections 2201. The push-down can claw 32 and the two can feeding claws 231 of the can feeding claw pair 23 on the rear section of the two conveying sections 2201 are triangularly distributed (that is, the push-down can claw 32 and the two can feeding claws 231 are located at the three corners of the triangle).
[0026] In this embodiment, the can conveying mechanism 2 further includes a can feeding motor 24 and multiple drive shafts 25. The can feeding motor 24 is mounted on the frame 1, and each drive shaft 25 is rotatably mounted on the frame 1 and runs in a left-right direction. One drive shaft 25 is connected to the output shaft of the can feeding motor 24. The conveying chain mechanism 22 includes an annular chain 221 and multiple drive sprockets 222. Each drive sprocket 222 is fixedly mounted on a corresponding drive shaft 25 and together tensions the annular chain 221. Each pair of can feeding claws 23 on the same side is mounted on a corresponding annular chain 221 and is arranged evenly in sequence along the running direction of the annular chain 221.
[0027] In this embodiment, the rotating shaft drive mechanism 314 includes a rotating shaft drive motor 3141, a drive shaft 3142, a drive pulley 3143, an annular synchronous belt 3144, and two driven pulleys 3145. The rotating shaft drive motor 3141 is mounted on a support base 311. The drive shaft 3142 is rotatably mounted on the support base 311 and is connected to the output shaft of the rotating shaft drive motor 3141. The drive pulley 3143 is fixedly mounted on the drive shaft 3142. The two driven pulleys 3145 are fixedly mounted on the front rotating shaft 312 and the rear rotating shaft 313, respectively. The drive pulley 3143 and the two driven pulleys 3145 are all located inside the annular synchronous belt 3144 and together tension the annular synchronous belt 3144. During operation, the rotating shaft drive motor 3141 drives the drive shaft 3142 and drive pulley 3143 to rotate, and through the annular synchronous belt 3144 and two driven pulleys 3145, drives the front rotating shaft 312 and the rear rotating shaft 313 to rotate in the same direction.
[0028] In this embodiment, the support base 311 is mounted on the frame 1 via a height position adjustment assembly 33, and the push-down claw 32 is mounted on the movable base 310 via a front-rear position adjustment assembly 34. The height position adjustment assembly 33 includes two vertical guide rails 331, an adjusting screw 332, an operating handle 333, and an adjusting nut 334. The two vertical guide rails 331 are both mounted on the frame 1 and arranged side by side. The two sides of the support base 311 are mounted on the two vertical guide rails 331 and slide in cooperation with them. The adjusting screw 332 is rotatably mounted on the frame 1 and is parallel to the vertical guide rails 331. An adjusting nut 334 is mounted on the support base 311 and meshes with the adjusting screw 332. An operating handle 333 is fixedly mounted on the adjusting screw 332. The front-to-back position adjustment assembly 34 includes an adjusting guide rail 341 and an adjusting block 342. The adjusting guide rail 341 is mounted on the movable seat 310 and runs in a front-to-back direction. The adjusting block 342 is mounted on the adjusting guide rail 341 and slides in cooperation with it. The adjusting block 342 has a locking screw hole, in which a locking bolt 343 is installed. The end of the locking bolt 343 is in close contact with the adjusting guide rail 341. The push-down claw 32 is connected to the adjusting block 342. With this structure, the height of the support base 311 can be adjusted using the height position adjustment assembly 33, and the relative position of the push-down claw 32 in the front-to-back direction of the movable seat 310 can be adjusted using the front-to-back position adjustment assembly 34. This allows the push-down claw drive mechanism 31 to be suitable for pushing can cylinders 60 with different heights and diameters. During adjustment, the adjusting screw 332 can be rotated in the forward or reverse direction by rotating the operating handle 333. The meshing relationship between the adjusting screw 332 and the adjusting nut 334 drives the support base 311 to rise or fall a certain height along the two vertical guide rails 331, thereby adjusting the overall height position of the push-down claw drive mechanism 31. When it is necessary to adjust the relative position of the push-down claw 32 in the front-back direction of the movable seat 310, the locking bolt 343 can be loosened first, and then the adjusting block 342 can be slid forward or backward along the adjusting guide rail 341 to the target position. Then the locking bolt 343 can be tightened so that the end of the locking bolt 343 is in close contact with the adjusting guide rail 341, thereby fixing the adjusting block 342 on the movable seat 310.
[0029] The working principle of this can-feeding and can-pushing device is briefly described below:
[0030] This can-feeding and can-pushing device is set between the rounding device and the sizing gauge in the resistance welding can body welding machine, and is used to transport the can cylinder 60 rolled out by the rounding device to the sizing gauge for welding.
[0031] During operation, the can conveying mechanism 2 is driven by the can feeding motor 24, which drives the connected transmission shaft 25. In conjunction with the remaining transmission shafts 25, the two conveying chain mechanisms 22 drive the two annular chains 221 synchronously via the transmission sprockets 222. The cans 60 rolled from the forming device are received via the can feeding rail 21. Then, the can feeding claws 23 on the conveying section 2201 push multiple cans 60 along the can feeding rail 21 from front to back. Each can feeding claw 23 pushes one can 60, conveying the cans 60 one by one to the rear section of the can feeding rail 21 and in front of the sizing gauge. Each time the can conveying mechanism 2 pushes a can 60 to the rear section of the can feeding rail 21 and in front of the sizing gauge, the can pushing mechanism 314 drives the front rotating shaft 312. Rotating in the same direction as the rear rotating shaft 313, the movable seat 310 and its downward pushing claw 32 rotate through the first front connecting rod 315, the second front connecting rod 316, the first rear connecting rod 317, the connecting arm 318, and the second rear connecting rod 319. First, the downward pushing claw 32 is driven to push upward and backward, so that the downward pushing claw 32 pushes the can 60 to the lower apex of the can 60. Together with the can feeding claw pair 23 located at the rear of the two conveying sections 2201, it forms a three-point push on the can 60 (like holding a cup firmly with three fingers), pushing the can 60 into the sizing gauge for welding. Then, the downward pushing claw drive mechanism 31 drives the pushing claw to swing downward and backward to reset its position, so that it is lower than the rear section of the can feeding rail 21, ready to push the next can 60 to arrive at the rear section of the can feeding rail 21.
[0032] Furthermore, it should be noted that the names of the various parts of the specific embodiments described in this specification may differ. All equivalent or simple variations made to the structure, features, and principles of this utility model patent are included within the protection scope of this utility model patent. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not deviate from the structure of this utility model or exceed the scope defined by the claims, they should all fall within the protection scope of this utility model.
Claims
1. A can feeding and pushing device for a resistance welding can body welding machine, characterized in that: The system includes a frame, a can conveying mechanism, and a can pushing mechanism. The can conveying mechanism includes a can feeding rail, two conveyor chain mechanisms, and multiple can feeding claw pairs. The can feeding rail is mounted on the frame and arranged along the front-to-back direction. The two conveyor chain mechanisms are arranged side by side on both sides of the can feeding rail, and each conveyor chain mechanism has a conveying section that moves from front to back. The multiple can feeding claw pairs are evenly arranged along the running direction of the two conveyor chain mechanisms. Each can feeding claw pair includes two can feeding claws arranged symmetrically on the left and right sides, and the two can feeding claws are respectively mounted on the two conveyor chain mechanisms. The can pushing mechanism includes a can pushing claw and a can pushing claw driving mechanism for driving the can pushing claw to push upward and backward. The can pushing claw driving mechanism is mounted on the frame. The can pushing claw is located at the rear section of the can feeding rail, and the can pushing claw and the two can feeding claws of the can feeding claw pairs on the rear sections of the two conveyor chains are triangularly distributed.
2. The can feeding and pushing device for a resistance welding can body welding machine according to claim 1, characterized in that: The can conveying mechanism also includes a can feeding motor and multiple drive shafts. The can feeding motor is mounted on the frame, and each drive shaft is rotatably mounted on the frame and runs left and right. One of the drive shafts is connected to the output shaft of the can feeding motor. The conveying chain mechanism includes a ring chain and multiple drive sprockets. Each drive sprocket is fixedly mounted on a corresponding drive shaft and together tensions the ring chain. Each can feeding claw on the same side is mounted on the same ring chain and is evenly arranged sequentially along the running direction of the ring chain.
3. The can feeding and pushing device for a resistance welding can body welding machine according to claim 1, characterized in that: The can-pushing claw drive mechanism includes a support base, a front rotating shaft, a rear rotating shaft, a shaft drive mechanism for driving the front and rear rotating shafts to rotate in the same direction, a first front connecting rod, a connecting arm, a second front connecting rod, a first rear connecting rod, a second rear connecting rod, and a movable seat. The support base is mounted on the frame, and the shaft drive mechanism is mounted on the support base. Both the front and rear rotating shafts are rotatably mounted on the support base and are arranged side by side. Both the front and rear rotating shafts run left and right. The first end of the first front connecting rod is hinged to the front rotating shaft. The connecting arm is V-shaped, with its front end hinged to the second end of the first front connecting rod and its middle part hinged to the front of the movable seat. The lower end of the second front connecting rod is hinged to the rear end of the connecting arm, and its upper end is hinged to the support base. The first end of the first rear connecting rod is hinged to the rear rotating shaft, and the lower end of the second rear connecting rod is hinged to the second end of the first rear connecting rod. The upper end of the second rear connecting rod is hinged to the rear of the movable seat. The can-pushing claw is mounted on the movable seat.
4. A can feeding and pushing device for a resistance welding can body welding machine according to claim 3, characterized in that: The support base is mounted on the frame via a height position adjustment assembly, and the push-down claw is mounted on the movable base via a front-to-back position adjustment assembly.
5. A can feeding and pushing device for a resistance welding can body welding machine according to claim 4, characterized in that: The height adjustment assembly includes two vertical guide rails, an adjusting screw, an operating handle, and an adjusting nut. The two vertical guide rails are mounted on the frame and arranged side by side. The two sides of the support base are mounted on the two vertical guide rails and slide in cooperation with them. The adjusting screw is rotatably mounted on the frame and parallel to the vertical guide rails. The adjusting nut is mounted on the support base and meshes with the adjusting screw. The operating handle is fixedly mounted on the adjusting screw.
6. A can feeding and pushing device for a resistance welding can body welding machine according to claim 4, characterized in that: The front-to-back position adjustment assembly includes an adjustment guide rail and an adjustment block. The adjustment guide rail is mounted on the movable seat and runs in a front-to-back direction. The adjustment block is mounted on the adjustment guide rail and slides in cooperation with the adjustment guide rail. The adjustment block is provided with a locking screw hole, in which a locking bolt is installed. The end of the screw of the locking bolt is in close contact with the adjustment guide rail. The lower pusher claw is connected to the adjustment block.
7. A can feeding and pushing device for a resistance welding can body welding machine according to claim 3, characterized in that: The rotating shaft drive mechanism includes a rotating shaft drive motor, a drive shaft, a drive pulley, an annular synchronous belt, and two driven pulleys. The rotating shaft drive motor is mounted on the support base. The drive shaft is rotatably mounted on the support base and is connected to the output shaft of the rotating shaft drive motor. The drive pulley is fixedly mounted on the drive shaft. The two driven pulleys are respectively fixedly mounted on the front rotating shaft and the rear rotating shaft. The drive pulley and the two driven pulleys are all located inside the annular synchronous belt and work together to tension the annular synchronous belt.