Filter rod length testing system with low failure rate

Abstract

The utility model provides a filter rod length testing system with low failure rate, which comprises a hopper and further comprises a driving mechanism arranged on the hopper; the pressing mechanism is arranged on the hopper; the transmission assembly is arranged, the belt is designed to be the double-face teeth, when the belt is started and stopped, the double-face teeth can disperse stress and reduce abrasion, the anti-slip assembly can limit the moving path of the belt and prevent the belt from slipping, the anti-slip assembly can be matched with the transmission assembly, stress of the single-side teeth of the belt is further reduced, and abrasion is relieved. The pressing mechanism can easily adjust the tightness of the belt and can quantitatively display the tightness, when the belt is abraded and loosened, the belt can be tightened again by adjusting the pressing mechanism, the transmission efficiency is improved, the slipping risk is reduced, and stable operation of the system is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of filter rod length testing technology, and in particular to a filter rod length testing system with a low failure rate. Background Technology

[0002] The filter rod length testing system is a device used to detect the length of filter rods in cigarette production. It can accurately measure the length of filter rods to ensure that the length of filter rods meets product quality standards. The system generally consists of a sampling device, a measuring unit, and a control unit. Measurement can be performed by mechanical or optical methods. Some advanced systems also have functions such as online detection, real-time feedback, and automatic adjustment, which can effectively improve production efficiency and product quality, and reduce quality problems and material waste caused by filter rod length deviations.

[0003] Chinese Patent CN00225075.6 discloses a fully automatic tester for the draw resistance, length, and weight of cigarette filter rods, comprising a sample feeding mechanism, a draw resistance detection mechanism, a weighing mechanism, and a length detection mechanism. The sample feeding mechanism consists of an automatic cigarette filter rod sampling device and forward and reverse conveyor belts located below the device's outlet. A probe from the draw resistance detection mechanism is installed at one end of each conveyor belt, and a weighing mechanism is installed at the other end. The weighing mechanism has an inclined guide surface extending to one end of the conveyor belt of the length detection mechanism. This invention features a simple structure, high detection accuracy, and a high degree of automation, making it suitable for testing the comprehensive parameters of cigarette filter rods and even more suitable for online testing as a quality control point for enterprises.

[0004] However, in actual use, it was found that after the system had been running for a long time, problems related to the wear of belts and pressure pulleys occurred frequently. The belt of the sample feeding mechanism was prone to loosening due to continuous operation, which caused deviations in the position of the filter rod during transmission. Sometimes, material jamming would occur, resulting in discontinuous sampling and affecting the overall testing efficiency. Moreover, after the belt loosened, the friction between it and the transmission components became unstable, which accelerated belt wear, increased maintenance costs and downtime, and thus adversely affected the testing efficiency. Utility Model Content

[0005] This invention aims to address the shortcomings of existing technologies by providing a filter rod length testing system with a low failure rate. Through the cooperation of the transmission component and anti-slip component in the drive mechanism, as well as the coordinated operation of the clamping mechanism, stable rod feeding, prevention of belt slippage, and precise belt tension adjustment are achieved. This solves the problems of low testing efficiency, high failure rate, and high maintenance costs caused by belt issues in existing systems, improving system stability and reliability, and reducing production interruptions.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A low-failure-rate filter rod length testing system includes a hopper and further includes:

[0008] A drive mechanism is disposed on the hopper;

[0009] A clamping mechanism is disposed on the hopper;

[0010] The drive mechanism drives the filter rods to be transported one by one for testing, and the clamping mechanism ensures that the belt connected to the drive mechanism is tightened to prevent the belt from loosening and affecting the transmission after long-term use.

[0011] Preferably, the drive mechanism includes:

[0012] A transmission assembly, wherein the transmission assembly is disposed on the hopper;

[0013] An anti-slip component is disposed on the hopper;

[0014] The transmission assembly transmits power via a belt, and the anti-slip assembly uses the power of the transmission assembly to drive the other side of the belt, restricting the belt's movement path and preventing the belt from slipping during movement.

[0015] Preferably, the transmission assembly includes:

[0016] A drive wheel, which is rotatably mounted on the hopper;

[0017] A first driven wheel is rotatably mounted on the hopper;

[0018] The second driven wheel is rotatably mounted on the hopper;

[0019] A double-sided toothed belt is used to connect the drive wheel, the first driven wheel, and the second driven wheel, etc.

[0020] A drive motor, the output shaft of which is connected to the drive wheel via a transmission.

[0021] Preferably, the anti-slip component includes:

[0022] An auxiliary wheel is rotatably mounted on the hopper.

[0023] The driving teeth are respectively disposed on the driving wheel, the first driven wheel and the second driven wheel;

[0024] Driven teeth are disposed on the auxiliary wheel, and multiple driven teeth respectively mesh with adjacent drive gears.

[0025] Preferably, the clamping mechanism includes:

[0026] An adjustment component is disposed on the hopper;

[0027] A pressure roller assembly, wherein the pressure roller assembly is disposed on the hopper;

[0028] The pressure roller assembly drives the adjustment assembly to tighten the transmission belt, ensuring the stability of the transmission.

[0029] Preferably, the adjustment component includes:

[0030] A sliding base is disposed on the hopper, and a sliding groove is provided inside the sliding base;

[0031] A sliding support plate, which is slidably disposed in a groove inside the sliding base;

[0032] A pressure roller is rotatably mounted on the sliding support plate.

[0033] Preferably, the pressure roller assembly includes:

[0034] A fixing plate is disposed on the hopper;

[0035] A threaded rod is inserted into a threaded hole on the fixed plate, and a pressure plate is provided at the bottom of the threaded rod;

[0036] A pressure sensor is mounted on the sliding support plate and determines the tension of the belt by detecting the pressure.

[0037] Preferably, the hopper is mounted on the chassis; the chassis is also equipped with a display controller for control.

[0038] Preferably, both the first driven wheel and the second driven wheel are connected to the feed roller for driving the filter rod to move.

[0039] Preferably, the double-sided toothed belt has drive teeth on both the front and back sides to reduce the force on the teeth on one side during movement and reduce belt wear.

[0040] The beneficial effects of this utility model are as follows:

[0041] (1) By setting up a transmission component, the belt is designed to have teeth on both sides. Since the belt receives a large force when it suddenly moves or stops, it is easy to wear. The double-sided tooth design reduces the force received by the belt and slows down the wear of the belt.

[0042] (2) By setting an anti-slip component, the belt will bulge out when it slips. By restricting the movement path of the belt during movement, the belt will not bulge out, thereby preventing the belt from slipping. In conjunction with the transmission component, the force received by the belt is distributed to both sides of the belt, reducing the force on the teeth on one side of the belt and slowing down the wear of the belt.

[0043] (3) By setting a clamping mechanism, this utility model can easily change the tightness of the belt and display it quantitatively. When the belt wears and becomes loose, the clamping mechanism can be adjusted to tighten the belt again, making the transmission more efficient and reducing the risk of belt slippage.

[0044] In summary, this utility model has advantages such as low failure rate, high stability, and long service life. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0046] Figure 2 This is a schematic diagram of the drive mechanism structure of this utility model;

[0047] Figure 3 This is a schematic diagram of the drive tooth and driven tooth structure of this utility model;

[0048] Figure 4 This is a schematic diagram of the pressing mechanism of this utility model;

[0049] Figure 5 This is a schematic diagram of the feeding roller structure of this utility model.

[0050] In the picture:

[0051] 100. Chassis; 200. Display controller; 300. Hopper; 400. Feeding roller;

[0052] 1. Drive mechanism; 11. Transmission assembly; 111. Drive wheel; 112. First driven wheel; 113. Second driven wheel; 114. Double-sided toothed belt; 115. Drive motor; 12. Anti-slip assembly; 121. Auxiliary wheel; 122. Drive tooth; 123. Driven tooth;

[0053] 2. Clamping mechanism; 21. Adjustment assembly; 211. Sliding base; 212. Sliding support plate; 213. Pressure roller; 22. Pressure roller assembly; 221. Fixing plate; 222. Threaded rod; 2221. Pressure plate; 223. Pressure sensor; Detailed Implementation

[0054] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0055] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0056] Example 1

[0057] like Figures 1 to 2 As shown, this embodiment provides a filter rod length testing system with a low failure rate.

[0058] A low-failure-rate filter rod length testing system includes a hopper 300, and further includes:

[0059] Drive mechanism 1, the drive mechanism 1 is disposed on the hopper 300;

[0060] A clamping mechanism 2 is disposed on the hopper 300;

[0061] The drive mechanism 1 drives the filter rods to be transported one by one for testing, and the clamping mechanism 2 ensures that the belt connected to the drive mechanism 1 is tightened, so as to avoid the belt from loosening and affecting the transmission after long-term use.

[0062] Furthermore, such as Figures 2 to 3 As shown, the drive mechanism 1 includes:

[0063] Transmission assembly 11, wherein the transmission assembly 11 is disposed on the hopper 300;

[0064] Anti-slip component 12, wherein the anti-slip component 12 is disposed on the hopper 300;

[0065] The transmission assembly 11 transmits power via a belt, and the anti-slip assembly 12 uses the power of the transmission assembly 11 to drive the other side of the belt, restricting the belt's movement path and preventing the belt from slipping during movement.

[0066] In this embodiment, the transmission component 11 and the anti-slip component 12 cooperate with each other. The transmission component 11 realizes power transmission, and the anti-slip component 12 prevents the belt from slipping, thereby ensuring the stable transmission of the filter rod to the detection position and improving the reliability of the detection system. The transmission component 11 transmits power to the belt, causing the belt to move the filter rod. The anti-slip component 12 uses the power transmitted to the belt by the transmission component 11 to apply a force to the other side of the belt. The two work together to restrict the movement trajectory of the belt, ensuring that the belt remains stable during operation and does not slip, so that the filter rod can be accurately transported to the detection position according to the predetermined route.

[0067] Furthermore, such as Figures 2 to 3 As shown, the transmission assembly 11 includes:

[0068] A drive wheel 111 is rotatably mounted on the hopper 300;

[0069] The first driven wheel 112 is rotatably mounted on the hopper 300;

[0070] The second driven wheel 113 is rotatably mounted on the hopper 300;

[0071] A double-sided toothed belt 114 is used to connect the drive wheel 111, the first driven wheel 112, and the second driven wheel 113, etc.

[0072] A drive motor 115 is provided, and the output shaft of the drive motor 115 is connected to the drive wheel 111 in a transmission manner.

[0073] It should be noted that the output shaft of the drive motor 115 is directly connected to the drive wheel 111. When the drive motor 115 is powered on and started, the output shaft begins to rotate. This rotational motion is directly transmitted to the drive wheel 111, which then rotates. This makes the drive wheel 111 the starting point of the power for the entire transmission system, providing a stable power output for the subsequent transmission process and ensuring that the entire transmission process can start smoothly.

[0074] The drive wheel 111 is engaged with the double-sided toothed belt 114. When the drive wheel 111 rotates, the teeth on its surface mesh with the teeth on the inner side of the double-sided toothed belt 114. As the drive wheel 111 continues to rotate, the tight meshing between the teeth drives the double-sided toothed belt 114 to move, converting the rotational power of the drive wheel 111 into the linear motion power of the belt. This effectively and stably transmits the power. Furthermore, due to the double-sided tooth design, the force on one side of the teeth is reduced, thus lowering the risk of belt wear.

[0075] The double-sided toothed belt 114 engages with the first driven wheel 112. When the double-sided toothed belt 114 moves under the drive of the drive wheel 111, the teeth on its outer side mesh with the teeth on the surface of the first driven wheel 112, thereby driving the first driven wheel 112 to rotate. This engagement allows power to be transmitted from the drive wheel 111 to the first driven wheel 112, further propelling the movement of the filter rod and ensuring the continuity of filter rod transport. The double-sided toothed belt 114 engages with the second driven wheel 113 in the same way as the first driven wheel 112. The teeth of the double-sided toothed belt 114 drive the second driven wheel 113 to rotate, providing more power support for the movement of the filter rod, ensuring that the filter rod can be stably transported to the detection area, and improving the stability of the transport process.

[0076] Furthermore, such as Figures 2 to 3 As shown, the anti-slip component 12 includes:

[0077] Auxiliary wheel 121 is rotatably mounted on the hopper 300;

[0078] Drive teeth 122 are respectively disposed on the drive wheel 111, the first driven wheel 112 and the second driven wheel 113;

[0079] Driven gear 123 is disposed on the auxiliary wheel 121, and multiple driven gears 123 respectively mesh with adjacent drive gears 122.

[0080] It should be noted that the driving teeth on the drive wheel mesh with the driven teeth on the auxiliary wheel. When the drive wheel in the transmission assembly 11 rotates, the driving teeth on the drive wheel rotate accordingly. Since the driven teeth and the drive teeth mesh with each other, the rotation of the drive teeth drives the driven teeth to rotate, which in turn drives the auxiliary wheel to rotate. This meshing method allows the auxiliary wheel to apply force to the other side of the belt. When the belt is running normally, the auxiliary wheel rotates accordingly to ensure that the forces on both sides of the belt are balanced. Once the belt shows a tendency to slip, the meshing between the driven teeth on the auxiliary wheel and the drive teeth on the drive wheel can promptly limit the abnormal movement of the belt, prevent the belt from bulging out, maintain stable belt transmission, and ensure the accuracy of filter rod transmission.

[0081] The drive teeth on the first driven pulley engage with the driven teeth on the auxiliary pulley. Driven by the transmission assembly 11, the first driven pulley rotates, causing its drive teeth to move and interact with the driven teeth on the auxiliary pulley. During this process, the driven teeth rotate with the drive teeth, and the auxiliary pulley also rotates, generating a continuous driving force on the other side of the belt. This not only helps maintain the smooth operation of the belt, but also, when there are signs of slippage near the first driven pulley, the meshing of the driven teeth and drive teeth can promptly prevent slippage, ensuring stable transmission of the filter rods as they pass through the relevant area of ​​the first driven pulley, thus improving the stability of the filter rod transmission process. The drive teeth on the second driven pulley engage with the driven teeth on the auxiliary pulley, following the same principle. When the second driven pulley rotates, its drive teeth drive the driven teeth on the auxiliary pulley to rotate, causing the auxiliary pulley to drive and restrict the other side of the belt. When the belt approaches the second driven pulley, if there is a risk of slippage, this engagement can react quickly to prevent slippage, ensuring stable transmission of the filter rods in that area and further ensuring the reliability of the entire filter rod conveying process.

[0082] Furthermore, such as Figure 1 As shown, the hopper 300 is mounted on the housing 100; the housing 100 is also equipped with a display controller 200 for control.

[0083] It should be noted that the chassis 100 carries the hopper 300 and the display controller 200, thus providing a stable installation platform and a convenient control interface for the system. This ensures that all components of the filter rod length testing system work together in an orderly manner and allows operators to monitor and adjust the system's operating status in real time.

[0084] Furthermore, such as Figure 5 As shown, the first driven wheel 112 and the second driven wheel 113 are both connected to the feed roller 400 for driving the filter rod to move.

[0085] It should be noted that the transmission connection between the first driven wheel 112, the second driven wheel 113 and the feeding roller 400 enables the filter rod to move, thereby ensuring that the filter rod can be smoothly transported from the hopper to the testing area and ensuring the continuity of the filter rod length test. This transmission connection ensures that the filter rod moves stably and at a uniform speed, avoiding problems such as jamming or deviation during the transport process, and ensuring that the testing work can be carried out continuously and accurately.

[0086] Furthermore, such as Figure 2 As shown, the double-sided toothed belt 114 has drive teeth on both the front and back sides to reduce the force on the teeth on one side during movement and reduce belt wear.

[0087] It should be noted that the design of the double-sided toothed belt 114, with drive teeth on both the front and back, reduces the force on one side of the teeth during belt movement. This reduces belt wear, extends belt life, and ensures stable operation of the filter rod length testing system. The double-sided tooth design allows for more even force distribution on the belt during transmission, reducing the risk of belt damage due to excessive force on one side, ensuring continuous and stable filter rod delivery, and avoiding testing interruptions caused by frequent belt replacements.

[0088] Example 2

[0089] like Figure 4 As shown, components that are the same as or corresponding to those in Embodiment 1 are referred to using the same reference numerals as in Embodiment 1. For simplicity, only the differences from Embodiment 1 are described below. The difference between Embodiment 2 and Embodiment 1 is as follows:

[0090] The clamping mechanism 2 includes:

[0091] Adjustment component 21, the adjustment component 21 being disposed on the hopper 300;

[0092] Pressure roller assembly 22, wherein the pressure roller assembly 22 is disposed on the hopper 300;

[0093] The pressure roller assembly 22 drives the adjustment assembly 21 to press the transmission belt, thereby ensuring the stability of the transmission.

[0094] It should be noted that the fixed plate and the threaded rod cooperate with each other. The fixed plate is fixed on the hopper 300, and the threaded rod is inserted into the threaded hole of the fixed plate. When it is necessary to adjust the belt tension, the threaded rod is rotated. Due to the action of the thread, the threaded rod will move up and down in the threaded hole of the fixed plate. This cooperation method can precisely control the movement distance and speed of the threaded rod, thereby achieving precise adjustment of the belt tension and ensuring that the belt is always in a suitable tension state.

[0095] The threaded rod cooperates with the pressure plate, which is located at the bottom of the threaded rod. When the threaded rod moves up and down under the action of the fixed plate, the pressure plate moves with the threaded rod and directly contacts the adjusting component 21, transmitting the movement of the threaded rod to the adjusting component 21 and applying pressure to it. This, in turn, tightens the belt through the adjusting component 21, ensuring the stability of the belt drive. The pressure sensor cooperates with the sliding support plate, which is located on the sliding support plate. When the pressure roller assembly 22 drives the adjusting component 21 to tighten the belt, the belt generates a reaction force on the adjusting component 21. This force is transmitted to the sliding support plate, and the pressure sensor can detect the corresponding pressure magnitude. Through this cooperation, the operator can intuitively understand the tightness of the belt and further adjust the threaded rod based on the detection data to achieve quantitative control of the belt tension, effectively avoiding the belt being too loose or too tight and improving the reliability of the belt drive.

[0096] The sliding base cooperates with the sliding support plate. The sliding base is fixed on the hopper 300 and has a groove inside. The sliding support plate slides in the groove. When the pressure roller assembly 22 drives the adjusting assembly 21 to tighten the belt, the sliding support plate slides in the groove of the sliding base, ensuring that the adjusting assembly 21 can move up and down smoothly. This allows the pressure roller to apply pressure to the belt evenly, ensuring consistent belt tension and smooth belt drive. The sliding support plate cooperates with the pressure roller, which is rotatably mounted on the sliding support plate. When the sliding support plate slides in the groove of the sliding base, the pressure roller moves with the sliding support plate. The pressure roller directly contacts the belt, converting the movement of the sliding support plate into a tightening force on the belt, effectively tightening it. Furthermore, the rotation of the pressure roller reduces friction with the belt during belt movement, reducing wear and extending belt life.

[0097] Furthermore, such as Figure 4 As shown, the adjustment component 21 includes:

[0098] A sliding base 211 is disposed on the hopper 300, and a sliding groove is provided inside the sliding base 211;

[0099] A sliding support plate 212 is slidably disposed in a groove inside the sliding base 211;

[0100] The pressure roller 213 is rotatably mounted on the sliding support plate 212.

[0101] It should be noted that the sliding base 211 cooperates with the sliding support plate 212. The sliding base 211 is fixed on the hopper 300, and its internal groove provides a precise sliding track for the sliding support plate 212. When it is necessary to adjust the belt tension, the externally applied force pushes the sliding support plate 212 to slide in the groove. This cooperation ensures that the movement direction of the sliding support plate 212 is stable, making the adjustment process well controllable, avoiding adjustment deviations, and ensuring that the pressure roller can accurately apply appropriate pressure to the belt.

[0102] The sliding support plate 212 cooperates with the pressure roller 213, which is rotatably mounted on the sliding support plate 212. When the sliding support plate 212 slides within the groove of the sliding base 211, it drives the pressure roller 213 to move synchronously. The pressure roller 213 is in direct contact with the belt. As the sliding support plate 212 moves, the pressure roller 213 applies pressure to the belt. Furthermore, the pressure roller 213 can rotate, reducing friction between itself and the belt during belt movement, preventing additional wear, and simultaneously applying pressure evenly to the belt, ensuring consistent belt tension and improving the stability of the belt drive.

[0103] Furthermore, such as Figure 4 As shown, the pressure roller assembly 22 includes:

[0104] A fixing plate 221 is disposed on the hopper 300;

[0105] A threaded rod 222 is inserted into a threaded hole on the fixing plate 221, and a pressure plate 2221 is provided at the bottom of the threaded rod 222.

[0106] Pressure sensor 223 is disposed on the sliding support plate 212 and determines the tightness of the belt by detecting the pressure.

[0107] It should be noted that the sliding base 211 cooperates with the sliding support plate 212. The sliding base 211 is fixed on the hopper 300, and its internal groove provides a sliding track for the sliding support plate 212. When it is necessary to adjust the belt tension, the externally applied force pushes the sliding support plate 212 to slide within the groove. This cooperation method ensures the stability and accuracy of the movement of the sliding support plate 212, making the adjustment process more controllable and avoiding uneven belt tension caused by deviations during the adjustment process.

[0108] The sliding support plate 212 cooperates with the pressure roller 213. The pressure roller 213 is rotatably mounted on the sliding support plate 212. When the sliding support plate 212 slides in the groove of the sliding base 211, it will drive the pressure roller 213 to move together. During the movement, the pressure roller 213 contacts the belt and applies pressure to it, thereby changing the belt tension. At the same time, the pressure roller 213 can rotate, which can reduce the friction between the belt and the belt when the belt moves, reduce belt wear, and extend the belt service life.

[0109] Work process

[0110] When the filter rod length testing system is working, the drive motor 115 is energized, driving the drive wheel 111 to rotate. The drive wheel 111 engages with the front drive teeth of the double-sided toothed belt 114 through the surface drive teeth, causing the belt to move. The back drive teeth of the belt engage with the driven teeth 123 on the auxiliary wheel 121 in the anti-slip component 12, causing the auxiliary wheel 121 to rotate. This prevents the belt from slipping and reduces the force on one side of the belt teeth, thus slowing down wear. The double-sided toothed belt 114 drives the first and second driven wheels 112 and 113 to rotate. They are connected to the feed roller 400, driving the feed roller 400 to rotate. The filter rod is stably conveyed from the hopper 300 to the testing area by friction. When the belt is slack, the clamping mechanism 2 is activated. The threaded rod 222 of the rotating pressure roller assembly 22 has a bottom pressure plate 2221 that pushes the sliding support plate 212 of the adjustment assembly 21 to slide down, which drives the pressure roller 213 to press the belt. The pressure sensor 223 provides feedback on the belt tension, which is convenient for operators to adjust. The chassis 100 provides an installation platform for each component. The display controller 200 displays the operating parameters in real time. The operator can use this to control the drive motor 115, the pressing mechanism 2, etc., to ensure the stable operation of the system and achieve accurate testing of the filter rod length.

[0111] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A low fault rate filter rod length testing system comprising a hopper characterised in that, Also include: Drive mechanism, the drive mechanism is arranged on the hopper; Compression mechanism, the compression mechanism is arranged on the hopper; Through the drive mechanism drive filter rod is transported to detect one by one, and through compression mechanism ensure that the drive mechanism connected with the belt is pulled tight, avoid long time use after the belt loose and affect transmission; The drive mechanism includes: Transmission assembly, the transmission assembly is arranged on the hopper; Anti-skid assembly, the anti-skid assembly is arranged on the hopper; The transmission assembly is completed power transmission through the belt, the anti-skid assembly is driven by the power of the transmission assembly, and the other side of the belt is driven, so that the moving path of the belt is limited, and the effect of preventing the belt from slipping during movement is achieved. The compression mechanism includes: Adjusting assembly, the adjusting assembly is arranged on the hopper; Compression wheel assembly, the compression wheel assembly is arranged on the hopper; The compression wheel assembly tightens the transmission belt by driving the adjusting assembly, to ensure the stability of transmission.

2. A low fault rate filter rod length testing system according to claim 1 characterised in that, The transmission assembly includes: Driving wheel, the driving wheel is rotatably arranged on the hopper; First driven wheel, the first driven wheel is rotatably arranged on the hopper; Second driven wheel, the second driven wheel is rotatably arranged on the hopper; Double-sided tooth belt, the double-sided tooth belt is used to connect the driving wheel, the first driven wheel and the second driven wheel; Drive motor, the output shaft of the drive motor is in transmission connection with the driving wheel.

3. A low fault rate filter rod length testing system according to claim 2, characterised in that, The anti-skid assembly includes: Auxiliary wheel, the auxiliary wheel is rotatably arranged on the hopper; Driving teeth, the driving teeth are respectively arranged on the driving wheel, the first driven wheel and the second driven wheel; Driven teeth, the driven teeth are arranged on the auxiliary wheel, and a plurality of driven teeth are respectively in gear meshing with adjacent driving teeth.

4. A low fault rate filter rod length testing system according to claim 3, characterised in that, The adjusting assembly includes: Sliding base, the sliding base is arranged on the hopper, and a sliding groove is formed in the sliding base; Sliding support plate, the sliding support plate is slidably arranged in the sliding groove in the sliding base; Compression pulley, the compression pulley is rotatably arranged on the sliding support plate.

5. A low fault rate filter rod length testing system according to claim 4, characterised in that, The compression wheel assembly includes: Fixed plate, the fixed plate is arranged on the hopper; Threaded rod, the threaded rod is inserted into the threaded hole in the fixed plate, and the bottom of the threaded rod is provided with a pressing piece; Pressure sensor, the pressure sensor is arranged on the sliding support plate, and the tightness of the belt is judged by detecting the pressure.

6. A low fault rate filter rod length testing system according to claim 1, wherein, The hopper is arranged on the case; The case is also provided with a display controller for control.

7. A low fault rate filter rod length testing system according to claim 2, wherein, The first driven wheel and the second driven wheel are in transmission connection with the feeding roller, to drive the filter rod to move.

8. A low fault rate filter rod length testing system according to claim 2 characterised in that, The front and back of the double-sided tooth belt are provided with driving teeth, to reduce the stress of the teeth on one side during movement and reduce the wear of the belt.

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