Obstacle avoiding device of a pusher assembly for a can replenishing device of a drawing frame
By designing an obstacle avoidance device for the bucket-pushing assembly and utilizing the structure of the push block and connecting frame, the obstruction of the sensor mounting bracket is avoided, ensuring that the bucket-pushing arm and push wheel can swing stably. This solves the problem of the sensor mounting bracket affecting the continuity of the bucket replenishment work and improves the efficiency of the bucket replenishment work.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINJIANG RUIHE TEXTILE CO LTD
- Filing Date
- 2025-09-05
- Publication Date
- 2026-07-24
AI Technical Summary
The sensor mounting bracket affects the swing of the bucket pusher arm and the push wheel, causing the bucket pusher arm and the push wheel to be unable to swing to the specified angle, thus preventing continuous bucket replenishment.
Design an obstacle avoidance device for the pusher assembly of a drawing frame for replenishing cans. The pusher block is slidably connected to the mounting frame by its inclined outer surface, which drives the connecting frame to move downward, reducing the height of the pusher wheel so that it avoids the obstruction of the mounting frame. The stable swing of the pusher arm and the pusher wheel is ensured by the cooperation of the limit rod and the spring.
It achieves stable swinging of the bucket-pushing arm and the push wheel, ensuring the continuity of bucket replenishment work and improving the efficiency of bucket replenishment.
Smart Images

Figure CN224548647U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of auxiliary canning structures for drawing frames, and in particular to an obstacle avoidance device for a canning pusher assembly for drawing frames. Background Technology
[0002] The drawing frame is a key piece of equipment in the spinning process of the textile industry. It is mainly used to process the fiber slivers such as cotton slivers and wool slivers output from the previous process. It is one of the core links to ensure the quality of subsequent spinning. In the production process of the drawing frame in the textile industry, the empty cans need to be pushed to the can replenishment station by the can push component to complete the receiving and replenishment of materials such as cotton slivers, so as to ensure the continuous operation of the production line. In order to ensure the continuity of the can replenishment work, sensors need to be installed at some fixed positions in the can replenishment conveying channel to coordinate the work between various components in the can replenishment process.
[0003] Currently, when replenishing buckets, the bucket pusher arm usually needs to drive the push wheel to swing over the empty bucket and push it to replenish the bucket. However, the sensor mounting bracket can affect the swing of the bucket pusher arm and the push wheel, preventing them from swinging to the specified angle to push over the empty bucket. This can cause the bucket replenishment work to be interrupted. Utility Model Content
[0004] The purpose of this application is to provide an obstacle avoidance device for the can-pushing assembly used in can replenishment on a drawing frame. This device avoids the influence of a sensor mounting bracket on the swing of the can-pushing arm and push wheel, allowing them to swing to a specified angle to pass over the empty cans that need to be pushed. This enables continuous can replenishment work and ensures high efficiency. It solves the problem that currently, can replenishment typically requires the can-pushing arm to drive the push wheel to swing over empty cans, but the sensor mounting bracket can interfere with the swing of the can-pushing arm and push wheel, preventing them from swinging to the specified angle and thus disrupting continuous can replenishment.
[0005] The obstacle avoidance device for a can-pushing assembly used in can replenishment of a drawing frame provided in this application adopts the following technical solution: An obstacle avoidance device for a can-pushing assembly used in can replenishment of a drawing frame includes a base. An electric guide rail and a positioning strip are fixedly installed on the top of the base, forming a conveying channel between the electric guide rail and the positioning strip. A mounting frame is fixedly installed on the top of the base via a support frame. A sensor is fixedly installed at one end of the top of the mounting frame. A slider is slidably installed inside the electric guide rail. A can-pushing arm is rotatably installed on the top of the slider via a rotating shaft. A torsion spring is provided between the can-pushing arm and the slider. A first fixing plate is provided at one end of the can-pushing arm. A connecting rod is hinged to one side of the first fixing plate via a hinge frame. One end of the connecting rod is hinged to one side of a second fixing plate via a hinge frame. The second fixing plate is fixedly installed at the end of the connecting frame. A push wheel is rotatably installed on the bottom of the inner side of the connecting frame via a rotating rod. A push block is fixedly installed on one side of the connecting frame via a fixing rod. The outer surface of the push block away from the connecting frame is inclined. The inclined outer surface of the push block is slidably connected to the edge of one end of the mounting frame.
[0006] By adopting the above technical solution, the inclined outer surface of the push block is slidably connected to one edge of the mounting frame. When the slider moves along the electric guide rail, the push arm swings under the influence of the empty buckets to be pushed in the conveying channel, causing the push arm to move closer to the mounting frame. This causes the inclined outer surface of the push block to slide on the edge of the mounting frame. Because the inclined outer surface of the push block is restricted by the edge of the mounting frame, the push block drives the connecting frame to move downward. At the same time, the end of the connecting rod near the second fixed plate will start to swing downward, causing the connecting frame to drive the push wheel to move downward, reducing the height of the push wheel. This makes the height of the push wheel lower than the bottom of the mounting frame, allowing the push wheel to swing to below the mounting frame. This avoids the influence of the mounting frame on the swing of the push arm and the push wheel, effectively avoiding the obstruction of the mounting frame and ensuring that the push arm and the push wheel can swing to the specified angle to pass over the empty bucket, thus ensuring the continuity of the bucket replenishment work.
[0007] Preferably, a limiting rod is provided between the first fixing plate and the second fixing plate. One end of the limiting rod is hinged to one side of the first fixing plate through a hinge frame, and the other end of the limiting rod is hinged to one side of the second fixing plate through a hinge frame. The limiting rod is located below the connecting rod, and the limiting rod and the connecting rod are of equal length and are arranged parallel to each other.
[0008] By adopting the above technical solution, the limiting rod and the connecting rod, together with the first fixed plate and the second fixed plate, form a parallelogram. This allows the second fixed plate to remain vertical when the limiting rod swings in conjunction with the connecting rod, thereby preventing the push wheel and the connecting frame from tilting during the height descent. This also prevents the push block from tilting and losing contact with the mounting frame, which would otherwise cause it to be unable to stably push the push wheel to descend. This ensures that the push block can stably cooperate with the mounting frame.
[0009] Preferably, a telescopic rod is installed between the top of the connecting rod and the top of the pusher arm. A spring is installed inside the telescopic rod. One end of the spring is fixed to one end of the inner wall of the telescopic outer tube of the telescopic rod, and the other end of the spring is fixed to one end of the telescopic inner rod of the telescopic rod.
[0010] By adopting the above technical solution, the spring inside the telescopic rod can provide elastic restoring force. When the push block is separated from the mounting frame, the spring force can pull the telescopic rod to return to its original position, thereby driving the connecting rod to return to its original position around the hinge point. This allows the connecting frame and the push wheel to quickly return to their initial working position, preparing for the next bucket replenishment action. It can also effectively traction the connecting rod, preventing it from swinging randomly.
[0011] Preferably, one end of the telescopic inner rod is hinged to the top of the connecting rod via a hinge frame, one end of the telescopic outer tube is hinged to the top of one side of the connecting plate via a hinge frame, and the bottom end of the connecting plate is fixedly mounted on the top of the pusher arm.
[0012] By adopting the above technical solution, the hinges at both ends of the telescopic rod allow the telescopic rod to flexibly adjust its angle as the connecting rod swings, avoiding jamming caused by rigid connection, ensuring the stable operation of the spring's reset function, avoiding interference with the swinging motion of the connecting rod, and ensuring smooth operation of the overall mechanism.
[0013] Preferably, a limiting plate is fixedly provided at the top of the first fixing plate, and the end of the limiting plate away from the first fixing plate is located above the horizontal outer surface of the top end of the connecting rod.
[0014] By adopting the above technical solution, the setting of the limiting plate can restrict the swing position of the connecting rod, avoid the connecting rod from swinging excessively due to the tension of the telescopic rod and the spring, and prevent the connecting rod from swinging excessively, causing the position of the connecting frame and the push wheel to shift.
[0015] Preferably, the top of the connecting plate is higher than the connecting rod, and the telescopic rod between the connecting plate and the connecting rod is inclined downwards.
[0016] By adopting the above technical solution, the top of the connecting plate is higher than the connecting rod, and the telescopic rod is set to a downward tilt. This allows the telescopic rod to better match the swing trajectory of the connecting rod with the extension direction of the spring, so that the elastic force can be accurately applied to the connecting rod to improve the reset efficiency. At the same time, it avoids interference between the telescopic rod limit plates and ensures that the reset action of the connecting rod driving the push wheel can be carried out smoothly.
[0017] Preferably, a sliding plate is fixedly provided on one side of one end of the bucket pushing arm, and the outer surface of one side of the sliding plate is on the same horizontal plane as the outer surface of one side of the bucket pushing arm. The sliding plate is located on the side of one end of the bucket pushing arm that is close to the conveying channel.
[0018] By adopting the above technical solution, the sliding plate can extend the force-bearing surface on one side of the bucket-pushing arm, ensuring the flatness of the force-bearing area between the bucket-pushing arm and the push wheel. This avoids the bucket-pushing arm from being too smooth when pushed by an empty bucket, which could cause movement jamming between the empty bucket and the bucket-pushing arm. This allows the empty bucket to smoothly push the bucket-pushing arm and the push wheel to swing.
[0019] Preferably, a limiting block is fixedly provided on one side of the top of the slider, and one end of the limiting block abuts against one side of the pusher arm.
[0020] By adopting the above technical solution, the limiting block is fixed to the top of the slider and abuts against one side of the pusher arm, which can limit the swing angle of the pusher arm, so that the pusher arm can stably push the empty bucket through the movement of the slider inside the electric guide rail.
[0021] In summary, this application includes at least one of the following beneficial technical effects:
[0022] This obstacle avoidance device for a can-pushing assembly used in a drawing frame for can replenishment involves sliding contact between the inclined outer surface of a pushing block and one edge of a mounting frame. This causes the pushing block to move the connecting frame downwards, while the end of the connecting rod near the second fixed plate begins to swing downwards. This causes the connecting frame to move the pushing wheel downwards, lowering its height to below the bottom of the mounting frame. This prevents the swing of the can-pushing arm and the pushing wheel from being affected by the sensor mounting frame, allowing the pushing arm and the pushing wheel to swing to a specified angle and pass over the empty cans that need to be pushed. This ensures continuous can replenishment work and guarantees work efficiency. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of this application;
[0024] Figure 2 This is a top view of the structure of this application;
[0025] Figure 3 This is a schematic diagram of a partial structure of this application on the right side;
[0026] Figure 4 This is a schematic diagram of the connection structure between the connecting rod and the limiting rod and the second connecting plate in this application;
[0027] Figure 5 This is a schematic diagram of the connection structure between the telescopic rod and the spring in this application.
[0028] In the picture:
[0029] 1. Base; 2. Electric guide rail; 3. Slider; 4. Pushing arm; 5. First fixing plate; 6. Connecting rod; 7. Second fixing plate; 8. Limiting rod; 9. Connecting frame; 10. Pushing wheel; 11. Pushing block; 12. Mounting frame; 13. Sensor; 14. Limiting plate; 15. Slide plate; 16. Telescopic rod; 17. Spring; 18. Positioning strip; 19. Connecting plate; 20. Limiting block. Detailed Implementation
[0030] The following is in conjunction with the appendix Figure 1 - Appendix Figure 5 This application will be described in further detail below.
[0031] Example 1: An obstacle avoidance device for a can-pushing assembly used in drawing frame can repair, please refer to [link to example]. Figure 1 , Figure 2 and Figure 3 The system includes a base 1, an electric guide rail 2 and a positioning strip 18 fixedly mounted on the top of the base 1, forming a conveying channel between the electric guide rail 2 and the positioning strip 18, a mounting frame 12 fixedly mounted on the top of the base 1 via a support frame, a sensor 13 fixedly mounted on one end of the top of the mounting frame 12, a slider 3 slidably mounted inside the electric guide rail 2, a pusher arm 4 rotatably mounted on the top of the slider 3 via a rotating shaft, a torsion spring between the pusher arm 4 and the slider 3, a first fixing plate 5 mounted on one end of the pusher arm 4, a connecting rod 6 hinged to one side of the first fixing plate 5 via a hinge frame, one end of the connecting rod 6 hinged to one side of a second fixing plate 7 via a hinge frame, the second fixing plate 7 fixedly mounted on the end of a connecting frame 9, a pusher wheel 10 rotatably mounted on the bottom of the inner side of the connecting frame 9 via a rotating rod, a pusher block 11 fixedly mounted on one side of the connecting frame 9 via a fixing rod, the outer surface of the pusher block 11 away from the connecting frame 9 is inclined, and the inclined outer surface of the pusher block 11 is slidably connected to the edge of one end of the mounting frame 12.
[0032] Please see Figure 1 , Figure 3 and Figure 4A limiting rod 8 is provided between the first fixed plate 5 and the second fixed plate 7. One end of the limiting rod 8 is hinged to one side of the first fixed plate 5 through a hinge frame, and the other end of the limiting rod 8 is hinged to one side of the second fixed plate 7 through a hinge frame. The limiting rod 8 is located below the connecting rod 6. The limiting rod 8 and the connecting rod 6 are of equal length and are set parallel to each other. The limiting rod 8 and the connecting rod 6 cooperate with the first fixed plate 5 and the second fixed plate 7 to form a parallelogram, so that when the limiting rod 8 swings in conjunction with the connecting rod 6, the second fixed plate 7 can always remain in a vertical state. This can prevent the push wheel 10 and the connecting frame 9 from tilting during the height reduction process, and thus prevent the push block 11 from tilting and losing contact with the mounting frame 12, which would cause it to be unable to stably push the push wheel 10 to reduce the height. This allows the push block 11 to cooperate stably with the mounting frame 12.
[0033] Please see Figure 1 , Figure 3 and Figure 4 A limiting plate 14 is fixedly installed at the top of the first fixed plate 5. The end of the limiting plate 14 away from the first fixed plate 5 is located above the horizontal outer surface of the top end of the connecting rod 6. The setting of the limiting plate 14 can limit the swing position of the connecting rod 6, prevent the connecting rod 6 from swinging excessively due to the pull of the telescopic rod 16 and the spring 17, and prevent the connecting rod 6 from swinging excessively, causing the position of the connecting frame 9 and the push wheel 10 to shift.
[0034] Please see Figure 1 , Figure 2 and Figure 4 A sliding plate 15 is fixedly installed on one side of one end of the bucket pushing arm 4. The outer surface of one side of the sliding plate 15 is on the same horizontal plane as the outer surface of one side of the bucket pushing arm 4. The sliding plate 15 is located on the side of one end of the bucket pushing arm 4 close to the conveying channel. The setting of the sliding plate 15 can extend the force-bearing surface on one side of the bucket pushing arm 4, ensuring the flatness of the force-bearing point between the bucket pushing arm 4 and the push wheel 10. This avoids the bucket pushing arm 4 and the push wheel 10 from not being smooth enough when the bucket pushing arm 4 is pushed by an empty bucket, which would cause movement jamming between the empty bucket and the bucket pushing arm 4. This allows the empty bucket to smoothly push the bucket pushing arm 4 and the push wheel 10 to swing.
[0035] Please see Figure 1 , Figure 2 and Figure 3 A limiting block 20 is fixedly installed on one side of the top of the slider 3. One end of the limiting block 20 abuts against one side of the bucket pushing arm 4. The limiting block 20 is fixed to the top of the slider 3 and abuts against one side of the bucket pushing arm 4, which can limit the swing angle of the bucket pushing arm 4, so that the bucket pushing arm 4 can stably push the empty bucket through the movement of the slider 3 inside the electric guide rail 2.
[0036] Example 2: An obstacle avoidance device for a can-pushing assembly used in a drawing frame for can replenishment; please refer to [link to example]. Figure 1 , Figure 4 and Figure 5 A telescopic rod 16 is installed between the top of the connecting rod 6 and the top of the pusher arm 4. A spring 17 is installed inside the telescopic rod 16. One end of the spring 17 is fixed to one end of the inner wall of the telescopic outer tube of the telescopic rod 16, and the other end of the spring 17 is fixed to one end of the telescopic inner rod of the telescopic rod 16. The spring 17 inside the telescopic rod 16 can provide elastic restoring force. When the pusher block 11 is separated from the mounting frame 12, the elastic force of the spring 17 can pull the telescopic rod 16 to reset, thereby driving the connecting rod 6 to reset around the hinge point, so that the connecting frame 9 and the pusher wheel 10 can quickly return to the initial working position, preparing for the next bucket replenishment action, and can effectively traction the connecting rod 6 to prevent the connecting rod 6 from swinging randomly.
[0037] Please see Figure 1 , Figure 2 and Figure 4 One end of the inner telescopic rod of the telescopic rod 16 is hinged to the top of the connecting rod 6 via a hinge frame, and one end of the outer telescopic tube of the telescopic rod 16 is hinged to the top of one side of the connecting plate 19 via a hinge frame. The bottom end of the connecting plate 19 is fixedly set on the top of the push barrel arm 4. The hinge at both ends of the telescopic rod 16 allows the telescopic rod 16 to flexibly adjust its angle with the swing of the connecting rod 6, avoiding jamming of the telescopic rod 16 due to rigid connection, ensuring the stable operation of the spring 17's reset function, avoiding interference with the swinging action of the connecting rod 6, and ensuring smooth operation of the overall mechanism.
[0038] Please see Figure 1 , Figure 3 and Figure 4 The top of the connecting plate 19 is higher than the connecting rod 6. The telescopic rod 16 between the connecting plate 19 and the connecting rod 6 is inclined downwards. The top of the connecting plate 19 is higher than the connecting rod 6, and the telescopic rod 16 is inclined downwards. This allows the telescopic rod 16 to move in a direction that is more in line with the swing trajectory of the connecting rod 6 in conjunction with the spring 17. This allows the elastic force to be applied precisely to the connecting rod 6 to improve the reset efficiency. At the same time, it avoids interference between the telescopic rod 16 and the limiting plate 14, ensuring that the reset action of the connecting rod 6 driving the push wheel 10 can be carried out smoothly.
[0039] The implementation principle of this application embodiment is as follows: When it is necessary to push and replenish an empty bucket placed on the conveying channel between the electric guide rail 2 and the positioning strip 18, the electric guide rail 2 cooperates with the slider 3, causing the slider 3 to slide within the electric guide rail 2. This causes the slider 3 to drive the bucket pushing arm 4 and the push wheel 10 to move towards the side of the empty bucket being pushed. When the slider 3 drives the bucket pushing arm 4 to move, one side of the bucket pushing arm 4 will contact the empty bucket. The bucket pushing arm 4 will swing under the influence of the empty bucket, causing the push wheel 10 to move closer to the electric guide rail 2. This gradually causes the push wheel 10 to move away from the conveying channel between the electric guide rail 2 and the positioning strip 18. When the bucket is pushed... When the arm 4 swings, the connecting frame 9 will cause the inclined outer surface of the push block 11 to move towards one end of the mounting frame 12, so that the inclined outer surface of the push block 11 contacts the edge of one end of the mounting frame 12. The continuous swinging of the push arm 4 will cause the inclined outer surface of the push block 11 to gradually move downward through sliding contact with the mounting frame 12, thereby causing the push block 11 to drive the push wheel 10 downward through the connecting frame 9. At the same time as the connecting frame 9 moves downward, it will also drive the second fixed plate 7 to move downward, so that the second fixed plate 7 will drive the connecting rod 6 and the limiting rod 8 to swing downward synchronously near one end of the second fixed plate 7. At the same time, the swinging of the connecting rod 6 The telescopic rod 16 is stretched, causing it to extend and stretch the spring 17. The continuous swinging of the pusher arm 4 causes the pusher block 11 to continuously drive the pusher wheel 10 downward through the mounting bracket 12, lowering the height of the pusher wheel 10 to below the mounting bracket 12. This allows the pusher wheel 10 to move below the mounting bracket 12 through the swinging of the pusher arm 4, thus completely removing the pusher wheel 10 from the conveying channel between the electric guide rail 2 and the positioning strip 18. This allows the pusher wheel 10 to smoothly pass under the mounting bracket 12 and be continuously moved by the slider 3 within the electric guide rail 2. The push wheel 10 is moved smoothly to the pushing force side of the empty bucket in the conveying channel. After the push block 11 disengages from the mounting bracket 12, the tension of the spring 17 drives the telescopic rod 16 to retract and reset, causing the telescopic rod 16 to drive the connecting rod 6 to swing upward and reset, thereby resetting the height of the push wheel 10. The push arm 4 swings and resets through the reset of the torsion spring between it and the slider 3, causing the push wheel 10 to swing back into the conveying channel, so that the push wheel 10 contacts the outer surface of the pushing force side of the empty bucket. Through the cooperation of the electric guide rail 2 and the slider 3, the push wheel 10 pushes the empty bucket, thereby performing the bucket replenishment work.
Claims
1. An obstacle avoidance device for a can-pushing assembly used in a drawing frame, comprising a base (1), characterized in that: An electric guide rail (2) and a positioning strip (18) are fixedly installed on the top of the base (1), forming a conveying channel between the electric guide rail (2) and the positioning strip (18). A mounting frame (12) is fixedly installed on the top of the base (1) via a support frame. A sensor (13) is fixedly installed at one end of the top of the mounting frame (12). A slider (3) is slidably installed inside the electric guide rail (2). A bucket-pushing arm (4) is rotatably installed on the top of the slider (3) via a rotating shaft. A torsion spring is provided between the bucket-pushing arm (4) and the slider (3). A first fixing plate (5) is provided at one end of the bucket-pushing arm (4). A connecting rod (6) is hinged to one side of the first fixing plate (5) via a hinge frame. One end of the connecting rod (6) is hinged to one side of the second fixing plate (7) via a hinge frame. The second fixing plate (7) is fixedly installed at the end of the connecting frame (9). A push wheel (10) is rotatably installed on the bottom of the inner side of the connecting frame (9) via a rotating rod. A push block (11) is fixedly installed on one side of the connecting frame (9) via a fixing rod. The outer surface of the push block (11) away from the connecting frame (9) is inclined. The inclined outer surface of the push block (11) is slidably connected to the edge of one end of the mounting frame (12).
2. The obstacle avoidance device for the can-pushing assembly of a drawing frame as described in claim 1, characterized in that: A limiting rod (8) is provided between the first fixing plate (5) and the second fixing plate (7). One end of the limiting rod (8) is hinged to one side of the first fixing plate (5) through a hinge frame, and the other end of the limiting rod (8) is hinged to one side of the second fixing plate (7) through a hinge frame. The limiting rod (8) is located below the connecting rod (6). The limiting rod (8) and the connecting rod (6) are of equal length and are arranged parallel to each other.
3. The obstacle avoidance device for a can-pushing assembly for repairing cans on a drawing frame according to claim 1, characterized in that: A telescopic rod (16) is installed between the top of the connecting rod (6) and the top of the pusher arm (4). A spring (17) is installed inside the telescopic rod (16). One end of the spring (17) is fixedly installed on one end of the inner wall of the telescopic outer tube of the telescopic rod (16), and the other end of the spring (17) is fixedly installed on one end of the telescopic inner rod of the telescopic rod (16).
4. The obstacle avoidance device for a can-pushing assembly for replenishing cans on a drawing frame according to claim 3, characterized in that: One end of the telescopic inner rod of the telescopic rod (16) is hinged to the top of the connecting rod (6) through a hinge frame, and one end of the telescopic outer tube of the telescopic rod (16) is hinged to the top of one side of the connecting plate (19) through a hinge frame. The bottom end of the connecting plate (19) is fixedly set on the top of the pusher arm (4).
5. The obstacle avoidance device for a can-pushing assembly for replenishing cans on a drawing frame according to claim 1, characterized in that: A limiting plate (14) is fixedly installed at the top of the first fixing plate (5), and the end of the limiting plate (14) away from the first fixing plate (5) is located above the horizontal outer surface of the top end of the connecting rod (6).
6. The obstacle avoidance device for a can-pushing assembly for replenishing cans on a drawing frame according to claim 4, characterized in that: The top of the connecting plate (19) is higher than the connecting rod (6), and the telescopic rod (16) between the connecting plate (19) and the connecting rod (6) is inclined downward.
7. The obstacle avoidance device for a can-pushing assembly for replenishing cans on a drawing frame according to claim 1, characterized in that: A sliding plate (15) is fixedly installed on one side of one end of the pusher arm (4). The outer surface of one side of the sliding plate (15) is on the same horizontal plane as the outer surface of one side of the pusher arm (4). The sliding plate (15) is located on one side of the pusher arm (4) near the conveying channel.
8. The obstacle avoidance device for a can-pushing assembly for replenishing cans on a drawing frame according to claim 1, characterized in that: A limiting block (20) is fixedly provided on one side of the top of the slider (3), and one end of the limiting block (20) abuts against one side of the pusher arm (4).