Bar segment acceleration conveyor system and method

Abstract

The present application belongs to the technical field of cigarette production equipment. In view of the problem that the insufficient constraint of the rod segment acceleration device leads to easy jamming and complex maintenance, the present application provides a rod segment acceleration and conveying system and method, which comprises a conveying panel, a conveying bottom plate, a first acceleration wheel assembly, a second acceleration wheel assembly, a third acceleration wheel assembly and a lifting mechanism. The present application forms three-way contact constraint on the left side, right side and upper side of the rod segment through three acceleration wheels, which cooperates with the bottom U-shaped guide groove to effectively suppress the lateral deviation, axial rotation and up-and-down jumping of the rod segment. The third acceleration wheel assembly is driven by the lifting mechanism, which can quickly rise to form a maintenance space when jammed, greatly simplifying the troubleshooting process. The present application also comprises a detection module and a control module, which can monitor the speed and position of the rod segment in real time and dynamically adjust the rotation speed of each acceleration wheel. The present application solves the problems of insufficient constraint, frequent jamming and difficult maintenance of traditional devices, and significantly improves the conveying stability, equipment maintainability and production efficiency.

Description

Technical Field

[0001] This invention relates to the field of cigarette production equipment technology, specifically to a rod segment accelerated conveying system and method. Background Technology

[0002] Traditional cigarette stick conveying often employs roller acceleration. For example, British patent document GB703982A discloses an acceleration device consisting of rotating segmented rollers, a mouthpiece wheel, and a high-speed conveyor belt. Its function is to immediately clamp the front and rear ends of the tobacco stick after it is cut, pressing it tightly onto the conveyor belt and accelerating it to a higher speed, thereby creating a precise gap between it and the subsequent tobacco flow. This acceleration device lacks sufficient constraint on the freedom of the stick, making it prone to lateral sliding or rotation during high-speed acceleration, leading to inaccurate alignment when inserted into the filter. Maintainability is poor; all components are fixedly installed, requiring the removal of multiple fasteners and even adjustment of synchronization gears for cleaning, maintenance, or replacement. It lacks flexibility, relying on mechanical transmission for synchronization, which is difficult to adjust in real time once set. It cannot adapt to fluctuations in material density, diameter, or speed, easily causing blockages or damage. It lacks a rapid obstacle removal mechanism; when a stick gets stuck in the clamping area, there is no design for quick release or channel opening, requiring manual prying or disassembly after stopping the machine, increasing safety risks and downtime.

[0003] Multi-component composite filter rod forming machines often use spiral rollers as the rod segment acceleration mechanism. However, these spiral rollers require extremely high installation and debugging precision. When jamming occurs, maintenance and repair are difficult, and they cannot flexibly adapt to frequent specification adjustments, failing to effectively meet the actual needs of diverse production scenarios. Furthermore, current rod segment acceleration channels can only constrain the freedom of the bottom or top of the rod segment. To ensure smooth rod segment transport, a certain gap must be reserved between the rod segment and the channel. This design causes slight swaying of the rod segment within the channel. When the rod segment enters the acceleration device, the swaying intensifies, leading to jamming problems and severely impacting equipment stability and production efficiency. Summary of the Invention

[0004] To address the shortcomings of existing bar segment acceleration devices, which lack sufficient constraint on the bars and are prone to jamming during transport, while also causing complex and cumbersome maintenance procedures that severely impact equipment efficiency and production continuity, this invention provides a bar segment acceleration conveying system and method. In the bar segment conveying channel, acceleration wheels are installed in the left, right, and upper directions (excluding the material's forward direction) to effectively constrain multiple degrees of freedom of the bars. This design allows for precise control of the bars' motion during transport, preventing swaying caused by unrestricted degrees of freedom and significantly improving the efficiency of accelerated bar segment conveying. Furthermore, a lifting mechanism is employed, allowing the upper acceleration wheels to quickly rise when a bar segment jams, creating a maintenance space for direct troubleshooting, shortening maintenance and troubleshooting time, and enhancing equipment maintainability.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: A bar segment acceleration conveying system, comprising: A conveying base plate, wherein the conveying base plate is provided with a U-shaped guide groove for accommodating and guiding the filter rods; The first acceleration wheel assembly includes a first acceleration wheel and its driving mechanism, wherein the first acceleration wheel is disposed on one side of the U-shaped guide groove; The second acceleration wheel assembly includes a second acceleration wheel and its drive mechanism, wherein the second acceleration wheel is disposed on the other side of the U-shaped guide groove; The third acceleration wheel assembly includes a third acceleration wheel and its driving mechanism, wherein the third acceleration wheel is disposed above the U-shaped guide groove; Limiting baffles are provided on both sides of the U-shaped guide groove; A lifting mechanism, connected to the third acceleration wheel assembly, is used to drive the third acceleration wheel to lift. The first acceleration wheel, the second acceleration wheel, the third acceleration wheel, and the limiting baffle together constitute the filter rod conveying channel.

[0006] Furthermore, the bar segment acceleration conveying system also includes: a detection module for detecting the conveying status of the filter bars in the conveying channel; The control module is electrically connected to the detection module and the drive mechanism of the first acceleration wheel, the second acceleration wheel, and the third acceleration wheel, respectively. The control module controls the rotation speed and start / stop of the first acceleration wheel, the second acceleration wheel, and / or the third acceleration wheel according to the detection value of the detection module.

[0007] Furthermore, the detection module includes a speed sensor and / or a position sensor for detecting the moving speed and / or position of the filter rod within the conveying channel; Furthermore, the detection module includes three photoelectric sensors arranged sequentially along the conveying channel: a first photoelectric sensor, a second photoelectric sensor, and a third photoelectric sensor. The first photoelectric sensor is located at the starting position of the rod segment acceleration, the second photoelectric sensor is located at the center of the first acceleration wheel and the second acceleration wheel, and the third photoelectric sensor is located at a distance of 1.5 to 2 rod segment lengths from the second photoelectric sensor.

[0008] The control module is configured to adjust the rotational speeds of the first acceleration wheel, the second acceleration wheel, and the third acceleration wheel respectively based on the filter rod speed detected by the detection module, so that the filter rod forms a predetermined distance with the front and rear filter rods in the conveying channel.

[0009] Furthermore, the control module is also configured to control the lifting mechanism to raise the third acceleration wheel assembly and control the first acceleration wheel, the second acceleration wheel and / or the third acceleration wheel to stop rotating when the filter rod is detected to be stuck in the conveying channel.

[0010] Furthermore, the conveying base plate includes a first conveying base plate and a second conveying base plate. The first conveying base plate is provided with a straight U-shaped guide groove, and the second conveying base plate is provided with a curved U-shaped guide groove. The straight U-shaped guide groove and the curved U-shaped guide groove are concentrically connected, and the bottom of the straight U-shaped guide groove is 0.3 to 0.8 mm higher than the bottom of the curved U-shaped guide groove.

[0011] Furthermore, the lifting mechanism is a cylinder or an electric push rod; the drive mechanisms for the first acceleration wheel, the second acceleration wheel, and the third acceleration wheel are servo motors, respectively.

[0012] A method for accelerating the conveying of bar segments includes the following steps: S1: The bar segment to be accelerated is introduced into the conveying channel composed of the first acceleration wheel, the second acceleration wheel, the third acceleration wheel and the limiting baffle. The first acceleration wheel and the second acceleration wheel are respectively arranged on both sides of the U-shaped guide groove of the conveying base plate, and the third acceleration wheel is arranged above the U-shaped guide groove. S2: The first acceleration wheel, the second acceleration wheel and the third acceleration wheel simultaneously apply contact constraints to the left side, the right side and the top of the bar segment, and form a limiting fit with the bottom of the U-shaped guide groove to restrict the degree of freedom of the bar segment in directions other than the forward direction; S3: Drive the first acceleration wheel, the second acceleration wheel and the third acceleration wheel to rotate synchronously, and use friction to drive the bar segment to accelerate forward in the conveying channel, so that a preset distance is formed between the current bar segment and the subsequent bar segment.

[0013] 8. The method for accelerating the conveying of bar segments according to claim 7, characterized in that it further includes a real-time detection and feedback control step: S4: Real-time monitoring of the moving speed and / or position information of the rod segments in the conveying channel through the detection module; S5: The control module adjusts the rotation speed of the first acceleration wheel, the second acceleration wheel and / or the third acceleration wheel respectively according to the information obtained by the detection module, so as to realize the dynamic adjustment of the acceleration process of the bar segment; Furthermore, when the moving speed of the bar segment is detected to be lower than a preset threshold, the control module increases the rotation speed of the corresponding acceleration wheel; when the spacing between adjacent bar segments is detected to deviate from the preset range, the control module adjusts the rotation speed difference of each acceleration wheel to correct the position of the bar segment.

[0014] Furthermore, the method for accelerating the conveying of bar segments also includes a fault handling step: the detection module monitors the running status of the bar segments in the conveying channel, and when the bar segment is detected to be stuck, the control module issues a command to drive the lifting mechanism to raise the third acceleration wheel assembly, so that a maintenance space is formed above the conveying channel, and at the same time controls the first acceleration wheel, the second acceleration wheel and / or the third acceleration wheel to stop rotating.

[0015] Furthermore, the rod segment sequentially triggers the first photoelectric sensor, the second photoelectric sensor, and the third photoelectric sensor. If the second and third photoelectric sensors are blocked in the designed sequence, it indicates that the front and rear rod segments maintain the standard spacing, and the control module maintains the current motor speed. If any photoelectric sensor signal is continuously abnormal, it is determined to be a jamming fault, and the control module executes a shutdown protection.

[0016] The present invention has the following beneficial effects: (1) This invention forms a three-way contact constraint on the left, right, and top of the bar segment by means of a first acceleration wheel, a second acceleration wheel, and a third acceleration wheel, respectively. This constraint works in conjunction with the bottom U-shaped guide groove to effectively restrict the five degrees of freedom of the bar segment, excluding the forward direction. Compared with the traditional structure that only restricts the vertical direction, this invention can fundamentally suppress the lateral offset, axial rotation, and vertical jump of the bar segment during high-speed conveying, significantly improving the stability of the bar segment's operation. It effectively avoids jamming problems caused by insufficient restriction of degrees of freedom, ensuring that the bar segment is conveyed smoothly and continuously in the channel, providing a reliable guarantee for subsequent processing steps.

[0017] (2) This invention utilizes a lifting mechanism to drive the third acceleration wheel assembly. When a rod segment jamming fault occurs in the conveying channel, the third acceleration wheel can quickly rise, creating an open maintenance space above the conveying channel. Operators can directly address the faulty part without disassembling numerous components. Compared to traditional maintenance methods that require disassembling multiple fasteners or even adjusting synchronous gears, this invention significantly simplifies the maintenance process, shortens troubleshooting time, reduces downtime losses, and significantly enhances the maintainability and operational reliability of the equipment. Furthermore, the lifting mechanism makes daily cleaning and maintenance operations more convenient, further improving the overall efficiency of the equipment.

[0018] (3) This invention uses a detection module to monitor the moving speed and position information of the rod segments in the conveying channel in real time, and the control module dynamically adjusts the rotation speed and start / stop of the three acceleration wheels according to the detection values, realizing closed-loop intelligent control of the rod segment acceleration process. When abnormal speed or spacing deviation of the rod segment is detected, the system can automatically adjust the speed difference of each acceleration wheel to correct the position of the rod segment, ensuring that a precise preset spacing is formed between the rod segment and the subsequent rod segment, providing a stable and reliable material flow for subsequent processes, and effectively improving production quality and efficiency. This intelligent control mechanism enables the system to adapt to fluctuations in material density, diameter, or speed, significantly enhancing the anti-interference ability and operational stability of the equipment.

[0019] (4) The present invention adopts a three-section acceleration wheel independent servo drive structure, and the speed of each acceleration wheel can be adjusted independently, which can flexibly adapt to the conveying needs of bar segments of different specifications and materials, and has good process adaptability and versatility. At the same time, the conveying base plate adopts a structure in which the straight section U-shaped guide groove and the curved section U-shaped guide groove are concentrically connected, and through the set height difference, the transition guidance effect formed by the height difference is used to realize the smooth transition of the bar segment in the curved section, further reducing the risk of jamming in the curved conveying process and ensuring the smooth passage of the bar segment in the complex conveying path.

[0020] (5) The present invention has a compact structure and a reasonable layout of its components. The three acceleration wheels work in concert with the conveying base plate, limiting baffles, and other components to achieve efficient conveying while saving installation space. It is compatible with filter rod forming production lines of various specifications, and is easy to install and debug, reducing equipment manufacturing costs and the user's operating threshold. Because the conveying channel effectively constrains the rod segments, the acceleration process of the rod segments is stable and controllable, enabling higher conveying speeds and significantly improving equipment capacity and economic benefits. In summary, the present invention has outstanding technical effects in improving production efficiency, reducing maintenance costs, and enhancing equipment reliability, and can effectively meet the actual needs of modern filter rod production lines for high-speed, stable, and intelligent conveying. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall system for accelerating the conveying of bar segments in Example 1; Figure 2 This is a schematic diagram of the first acceleration wheel assembly in Embodiment 1; Figure 3 This is a schematic diagram of the second acceleration wheel assembly in Embodiment 1; Figure 4 This is a schematic diagram of the third acceleration wheel assembly in Embodiment 1; Figure 5 This is a schematic diagram of the structure of Embodiment 1 including the conveying channel assembly, with arrows indicating the conveying direction; Figure 6 This is a schematic diagram of the conveyor base plate structure in Example 1; Figure 7This is a schematic diagram of the passage of the rod segment in Example 1; Figure 8 This is a cross-sectional schematic diagram of the accelerated conveying system in use as described in Example 1; Figure 9 This is a schematic diagram of the photoelectric sensor position detection in Example 2; Among them, 101. Conveying base plate, 102. First acceleration wheel assembly, 103. Second acceleration wheel assembly, 104. Third acceleration wheel assembly, 105. Lifting cylinder, 106. Conveying panel; 201. First acceleration wheel; 202. First connecting flange; 203. First motor mounting base; 204. First servo motor; 301. Second acceleration wheel; 302. Second connecting flange; 303. Second motor mounting base; 304. Second servo motor; 401. Third acceleration wheel; 402. Third connecting flange; 403. Third motor mounting base; 404. Third servo motor; 501. Bar segment; 502. First conveying base plate; 503. Second conveying base plate; 504. First limiting baffle; 505. Second limiting baffle; 601. First photoelectric sensor; 602. Second photoelectric sensor; 603. Third photoelectric sensor. Detailed Implementation Example 1

[0022] A bar segment acceleration conveying system, such as Figure 1 As shown, the accelerated conveying system mainly includes a conveying base plate 101, a first accelerated wheel assembly 102, a second accelerated wheel assembly 103, a third accelerated wheel assembly 104, a lifting cylinder 105, and a conveying panel 106. The conveying panel 106 is used to install the above-mentioned components.

[0023] like Figure 2 As shown, the first acceleration wheel assembly 102 includes a first acceleration wheel 201, a first connecting flange 202, a first motor mounting base 203, and a first servo motor 204. The first connecting flange 202 is installed below the first acceleration wheel 201, and one end of the first connecting flange 202 is connected to the output shaft of the first servo motor 204. The first servo motor 204 is mounted on the first motor mounting base 203, and the first motor mounting base 203 is mounted on the conveyor panel 106.

[0024] like Figure 3As shown, the second acceleration wheel assembly 103 includes a second acceleration wheel 301, a second connecting flange 302, a second motor mounting base 303, and a second servo motor 304. The second connecting flange 302 is installed below the second acceleration wheel 301, and one end of the second connecting flange 302 is connected to the output shaft of the second servo motor 304. The second servo motor 304 is mounted on the second motor mounting base 303, and the second motor mounting base 303 is mounted on the conveyor panel 106.

[0025] like Figure 4 As shown, the third acceleration wheel assembly 104 includes a third acceleration wheel 401, a third connecting flange 402, a third motor mounting base 403, and a third servo motor 404. The third connecting flange 402 is mounted on the third acceleration wheel 401 and is connected to the output shaft of the servo motor 404. The third servo motor 404 is mounted on the third motor mounting base 403.

[0026] The lifting cylinder 105 is installed on the conveying panel 106, and the top rod of the lifting cylinder 105 is connected to the third motor mounting base 403.

[0027] like Figure 5 and Figure 6 As shown, the conveying base plate 101 is composed of a first conveying base plate 502 and a second conveying base plate 503. A straight U-shaped guide groove is provided on the first conveying base plate 502, and a curved U-shaped guide groove is provided on the second conveying base plate 503. Both U-shaped guide grooves have an arc-shaped cross-section guide groove design and are arranged concentrically. The straight U-shaped guide groove is slightly higher than the curved U-shaped guide groove by about 0.5mm.

[0028] The first limiting baffle 504 and the second limiting baffle 505 are disposed on both sides of the straight U-shaped guide groove of the first conveying base plate 502. The first accelerating wheel assembly 102 and the second accelerating wheel assembly 103 are symmetrically disposed on both sides of the conveying base plate 101, and the third accelerating wheel assembly 104 is disposed above the conveying base plate 101, located between the first accelerating wheel 201 and the second accelerating wheel 301. The first limiting baffle 504, the second limiting baffle 505, the first accelerating wheel 201, the second accelerating wheel 301, and the third accelerating wheel 401 constitute the conveying channel of the bar segment.

[0029] Working principle and process of bar segment accelerated conveying system: such as Figure 7 and Figure 8As shown, bar segment 501 is conveyed to the acceleration conveying device and constrained in the left and right directions by the first limiting baffle 504 and the second limiting baffle 505. When entering the acceleration system, it passes through the conveying channel composed of the first acceleration wheel 201, the second acceleration wheel 301, the third acceleration wheel 401 and the conveying base plate 101. The three acceleration wheels in different directions work together with the bottom conveying channel to effectively constrain the degrees of freedom of bar segment 501 in other directions except the forward direction. This allows a single bar segment 501 entering the acceleration system to be smoothly accelerated in the channel, creating a distance from the bar segment flow that is connected end to end behind it, making it easier to enter the next level conveying channel. This method can achieve a significant increase in the bar segment conveying speed.

[0030] The third acceleration wheel assembly 104 has a liftable structure. When the equipment needs to be operated and maintained, the lifting cylinder 105 can be raised to lift the third acceleration wheel assembly 104 connected to the lifting cylinder 105, exposing the conveying channel of the bar segment 501, which makes it convenient for maintenance personnel to directly handle the faulty parts or perform daily cleaning and maintenance.

[0031] When a bar segment gets stuck in the conveying channel, the third acceleration wheel assembly 104 is raised by driving the lifting cylinder 105, and the first servo motor 204, the second servo motor 304 and the third servo motor 404 stop rotating. After the fault is cleared, the servo motors are restarted to resume the conveying operation. Example 2

[0032] Based on Embodiment 1, a detection module and a control module (not shown in the figure) are also included to achieve automated detection and control. The control module is electrically connected to the detection module, the first servo motor 204, the second servo motor 304, the third servo motor 404, and the lifting cylinder 105, respectively, and is used to control the rotation speed, start and stop of each acceleration wheel, and the action of the lifting cylinder according to the detection value of the detection module. During the conveying process, the detection module monitors the moving speed and position information of the bar segment 501 in the conveying channel in real time and feeds back the detection signal to the control module. The control module dynamically adjusts the rotation speed of the first servo motor 204, the second servo motor 304, and the third servo motor 404 according to the received detection value. When the moving speed of the bar segment is detected to be lower than a preset threshold, the control module increases the rotation speed of the corresponding acceleration wheel accordingly; when the distance between adjacent bar segments is detected to deviate from the preset range, the control module adjusts the rotation speed difference of each acceleration wheel to correct the position of the bar segment and ensure that the bar segment always maintains a precise preset distance from the subsequent bar segment.

[0033] Specifically in this embodiment, such as Figure 9As shown, the detection module includes three photoelectric sensors arranged sequentially along the conveying channel: a first photoelectric sensor 601, a second photoelectric sensor 602, and a third photoelectric sensor 603. The first photoelectric sensor 601 is positioned at the starting position of the rod segment acceleration, the second photoelectric sensor 602 is positioned at the center of the first acceleration wheel 201 and the second acceleration wheel 301, and the third photoelectric sensor 603 is positioned 1.5 to 2 rod segment lengths away from the second photoelectric sensor 602. The signal output terminals of the first photoelectric sensor 601, the second photoelectric sensor 602, and the third photoelectric sensor 603 are all electrically connected to the signal input terminal of the control module. The rod segment sequentially triggers the first photoelectric sensor 601, the second photoelectric sensor 602, and the third photoelectric sensor 603. The second photoelectric sensor 602 and the third photoelectric sensor 603 are blocked sequentially according to the designed timing, indicating that the preceding and following rod segments maintain a standard spacing, and the control module maintains the current motor speed. If any photoelectric sensor signal remains abnormal (long-term triggering or long-term non-triggering), it is determined to be a jamming fault, and the control module executes a shutdown protection.

[0034] When the equipment requires operation and maintenance, the control module can issue a command to drive the lifting cylinder 105 to rise. The third acceleration wheel assembly 104 connected to the lifting cylinder 105 will be raised, creating an open maintenance space above the conveying channel, exposing the conveying channel of the bar segment 501, making it convenient for maintenance personnel to directly handle faulty parts or perform routine cleaning and maintenance. When the detection module detects that a bar segment is stuck in the conveying channel, the control module automatically issues a command to drive the lifting cylinder 105 to raise the third acceleration wheel assembly 104, while simultaneously controlling the first servo motor 204, the second servo motor 304, and the third servo motor 404 to stop rotating, forming a fault handling mode. After the fault is cleared, the control module drives the lifting cylinder 105 to reset and restarts each servo motor to resume conveying operations.

[0035] In this embodiment, the first acceleration wheel 201, the second acceleration wheel 301 and the third acceleration wheel 401 are driven by independent first servo motor 204, second servo motor 304 and third servo motor 404 respectively. The control module can independently adjust the speed of each servo motor to achieve precise control of the bar segment acceleration process and can flexibly adapt to the conveying needs of bar segments of different specifications and materials.

[0036] The conveying base plate 101 adopts a structure in which a straight U-shaped guide groove and a curved U-shaped guide groove are concentrically connected, and the bottom of the straight guide groove is 0.3 to 0.8 mm higher than the bottom of the curved guide groove. When the bar segment 501 passes through the straight U-shaped guide groove and the curved U-shaped guide groove in sequence, the transition guiding effect formed by the height difference is used to assist the bar segment 501 to pass smoothly through the curved section, effectively reducing the risk of jamming during the curved conveying process.

[0037] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A bar segment accelerated conveying system, characterized in that, include: A conveying base plate, wherein the conveying base plate is provided with a U-shaped guide groove for accommodating and guiding the filter rods; The first acceleration wheel assembly includes a first acceleration wheel and its driving mechanism, wherein the first acceleration wheel is disposed on one side of the U-shaped guide groove; The second acceleration wheel assembly includes a second acceleration wheel and its drive mechanism, wherein the second acceleration wheel is disposed on the other side of the U-shaped guide groove; The third acceleration wheel assembly includes a third acceleration wheel and its driving mechanism, wherein the third acceleration wheel is disposed above the U-shaped guide groove; Limiting baffles are provided on both sides of the U-shaped guide groove; A lifting mechanism, connected to the third acceleration wheel assembly, is used to drive the third acceleration wheel to lift. The first acceleration wheel, the second acceleration wheel, the third acceleration wheel, and the limiting baffle together constitute the filter rod conveying channel.

2. The bar segment acceleration conveying system according to claim 1, characterized in that, Also includes: The detection module is used to detect the moving speed and / or position of the filter rods in the conveying channel; The control module is electrically connected to the detection module and the drive mechanism of the first acceleration wheel, the second acceleration wheel, and the third acceleration wheel, respectively. The control module controls the rotation speed and start / stop of the first acceleration wheel, the second acceleration wheel, and / or the third acceleration wheel according to the detection value of the detection module.

3. The bar segment acceleration conveying system according to claim 2, characterized in that, The detection module includes three photoelectric sensors arranged sequentially along the conveying channel: a first photoelectric sensor, a second photoelectric sensor, and a third photoelectric sensor. The first photoelectric sensor is set at the starting position of the bar segment acceleration, the second photoelectric sensor is set at the center of the first acceleration wheel and the second acceleration wheel, and the third photoelectric sensor is set at a distance of 1.5 to 2 bar segment lengths from the second photoelectric sensor.

4. The bar segment acceleration conveying system according to claim 2, characterized in that, The control module is also configured to, when a filter rod is detected to be stuck in the conveying channel, control the lifting mechanism to raise the third acceleration wheel assembly and control the first acceleration wheel, the second acceleration wheel and / or the third acceleration wheel to stop rotating.

5. The bar segment acceleration conveying system according to claim 1, characterized in that, The conveying base plate includes a first conveying base plate and a second conveying base plate. The first conveying base plate is provided with a straight U-shaped guide groove, and the second conveying base plate is provided with a curved U-shaped guide groove. The straight U-shaped guide groove and the curved U-shaped guide groove are concentrically connected, and the bottom of the straight U-shaped guide groove is 0.3 to 0.8 mm higher than the bottom of the curved U-shaped guide groove.

6. The bar segment acceleration conveying system according to claim 1, characterized in that, The lifting mechanism is a cylinder or an electric push rod; the drive mechanisms for the first acceleration wheel, the second acceleration wheel and the third acceleration wheel are servo motors.

7. A method for accelerating the conveying of bar segments, characterized in that, The rod segment acceleration conveying system according to any one of claims 1 to 6 includes the following steps: S1: The bar segment to be accelerated is introduced into the conveying channel composed of the first acceleration wheel, the second acceleration wheel, the third acceleration wheel and the limiting baffle. The first acceleration wheel and the second acceleration wheel are respectively arranged on both sides of the U-shaped guide groove of the conveying base plate, and the third acceleration wheel is arranged above the U-shaped guide groove. S2: The first acceleration wheel, the second acceleration wheel and the third acceleration wheel simultaneously apply contact constraints to the left side, the right side and the top of the bar segment, and form a limiting fit with the bottom of the U-shaped guide groove to restrict the degree of freedom of the bar segment in directions other than the forward direction; S3: Drive the first acceleration wheel, the second acceleration wheel and the third acceleration wheel to rotate synchronously, and use friction to drive the bar segment to accelerate forward in the conveying channel, so that a preset distance is formed between the current bar segment and the subsequent bar segment.

8. The method for accelerating the conveying of bar segments according to claim 7, characterized in that, It also includes real-time detection and feedback control steps: S4: Real-time monitoring of the moving speed and / or position information of the rod segments in the conveying channel through the detection module; S5: The control module adjusts the rotational speeds of the first acceleration wheel, the second acceleration wheel, and / or the third acceleration wheel according to the information obtained by the detection module, thereby achieving dynamic adjustment of the acceleration process of the rod segment.

9. The method for accelerating the conveying of bar segments according to claim 8, characterized in that, When the moving speed of the bar segment is detected to be lower than the preset threshold, the control module increases the rotation speed of the corresponding acceleration wheel; when the distance between adjacent bar segments is detected to deviate from the preset range, the control module adjusts the rotation speed difference of each acceleration wheel to correct the position of the bar segment.

10. The method for accelerating the conveying of bar segments according to claim 8, characterized in that, It also includes fault handling steps: the detection module monitors the running status of the bar segments in the conveying channel. When the bar segment is detected to be stuck, the control module sends a command to drive the lifting mechanism to raise the third acceleration wheel assembly, so that a maintenance space is formed above the conveying channel. At the same time, the first acceleration wheel, the second acceleration wheel and / or the third acceleration wheel are controlled to stop rotating.

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