Cigarette and filter stick multi-angle hardness measuring device

Abstract

The utility model provides a multi-angle hardness measuring device for cigarettes and filter sticks. The multi-angle hardness measuring device comprises a bracket, a pressure applying assembly, a carrying table and an angle adjusting assembly, the pressure applying assembly is installed on the support and comprises a pressure head capable of moving in the vertical direction and a force sensor used for detecting pressure changes of the pressure head. The carrying table is arranged below the pressing head, and a groove body is formed in the upper end face of the carrying table and used for containing cigarette filter sticks and serving as a pressed supporting face. The angle adjusting assembly is arranged on one side of the carrying table and comprises a negative pressure suction head and a rotary driving motor, the negative pressure suction head is used for fixing one end of a cigarette filter stick, and the rotary driving motor is used for driving the whole negative pressure suction head to do circular motion. The multi-angle hardness measuring device for the cigarette and the filter stick has the advantage that multi-angle detection of the cigarette or the filter stick can be realized.

Description

Technical Field

[0001] This utility model relates to the field of cigarette filter rod parameter detection technology, specifically, to a multi-angle hardness measuring device for cigarettes and filter rods. Background Technology

[0002] According to the Chinese tobacco industry standard YC / T28.6-1996, hardness is defined as the percentage of the radial diameter of a sample after being compressed to its diameter before compression within a certain period of time. Therefore, the hardness index of cigarettes is a relatively important physical indicator. Its quality affects both the structural stability and shape retention of the cigarette itself, as well as the user's smoking experience, making it an important indicator in cigarette production.

[0003] Due to limitations in the production process, cigarettes or filter rods may experience uneven internal filling distribution due to constraints in technology, equipment, raw materials, etc. Therefore, the hardness testing of cigarettes or filter rods requires comprehensive and multi-point testing.

[0004] Cigarette filter rods are generally cylindrical, and there is currently no direct equipment to test the distribution of hardness in the circumferential direction; manual intervention is usually required.

[0005] Therefore, providing a device that can detect hardness at multiple angles in the circumferential direction is an important direction for solving the multi-angle detection needs of cigarettes or filter rods.

[0006] In order to solve the above problems, people have been seeking an ideal technological solution. Utility Model Content

[0007] The purpose of this invention is to address the shortcomings of existing technologies by providing a multi-angle hardness measuring device for cigarettes and filter rods that can perform multi-angle detection of cigarettes or filter rods.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is: a multi-angle hardness measuring device for cigarettes and filter rods, including a support, a pressure application component, a platform, and an angle adjustment component;

[0009] The pressure application assembly is mounted on a bracket, and the pressure application assembly includes a pressure head that can move in a vertical direction and a force sensor for detecting changes in the pressure of the pressure head;

[0010] The platform is located below the pressure head, and the upper surface of the platform is provided with a groove for placing cigarette filter rods and serving as a pressure support surface.

[0011] The angle adjustment component is located on one side of the platform. The angle adjustment component includes a negative pressure suction head and a rotary drive motor. The negative pressure suction head is used to fix one end of the cigarette filter rod, and the rotary drive motor is used to drive the negative pressure suction head to make a circular motion.

[0012] Based on the above, the angle adjustment assembly further includes a linear slide and a lifting slide. The linear slide moves in the same direction as the length of the groove. The lifting slide is installed on the moving end of the linear slide to form a two-stage slide. The rotary drive motor is installed on the moving end of the lifting slide for height adjustment.

[0013] Based on the above, the negative pressure suction head includes a suction head, a negative pressure connector, and negative pressure holes. The front end of the suction head is provided with a U-shaped groove, and the bottom of the U-shaped groove is provided with several negative pressure holes. The bottom of the U-shaped groove serves as the adsorption surface of the cigarette filter rod. The suction head is provided with a negative pressure channel connecting several negative pressure holes inside. The negative pressure connector is installed at the tail end of the suction head and is connected to the negative pressure channel.

[0014] Based on the above, the pressure application assembly includes a pressure lifting slide, a cantilever, a guide rod, a force sensor, a pressure head, and a distance sensor. The pressure lifting slide is mounted on a bracket, the cantilever is mounted on the moving end of the pressure lifting slide, the guide rod is supported on the cantilever, the force sensor and the pressure head are located at the bottom end of the guide rod, and the distance sensor is mounted on the bracket and used to detect the downward pressing distance of the pressure head.

[0015] A multi-angle hardness measuring device for cigarettes and filter rods includes a support, a pressure application component, a platform, and an angle adjustment component;

[0016] The pressure application assembly is mounted on a bracket, and the pressure application assembly includes a pressure head that can move in a vertical direction and a force sensor for detecting changes in the pressure of the pressure head;

[0017] The platform is located below the pressure head, and the upper surface of the platform is provided with a groove for placing cigarette filter rods and serving as a pressure support surface.

[0018] The angle adjustment component is located on one side of the platform. The angle adjustment component includes a clamping mechanism and a rotary drive motor. The clamping mechanism is used to fix one end of the cigarette filter rod, and the rotary drive motor is used to drive the clamping mechanism to make a circular motion.

[0019] Based on the above, the clamping mechanism includes a linear motor, a pull rod, a first boss, a second boss, a support frame, a first pressure plate, and a second pressure plate. The linear motor is installed at the rear end of the support frame, and the moving end of the linear motor is connected to the rear end of the pull rod. The front end of the pull rod is provided with a first boss and a second boss in sequence.

[0020] The middle parts of the first pressure plate and the second pressure plate are both hinged to the support frame. The front ends of the first pressure plate and the second pressure plate are provided with V-shaped grooves for clamping cigarette filter rods on opposite sides. The tail ends of the first pressure plate and the second pressure plate extend into the narrow gap between the first boss and the second boss.

[0021] The linear motor drives the pull rod to move forward or backward based on the support frame, and drives the first pressure plate and the second pressure plate to open or close around the hinge point.

[0022] Based on the above, the edges of the first boss and the second boss are chamfered.

[0023] Based on the above, the included angle between the front and rear ends of the first and second pressure plates is an obtuse angle.

[0024] A multi-angle hardness measuring device for cigarettes and filter rods includes a support, a pressure application component, a platform, and an angle adjustment component;

[0025] The pressure application assembly is mounted on a bracket, and the pressure application assembly includes a pressure head that can move in a vertical direction and a force sensor for detecting changes in the pressure of the pressure head;

[0026] The platform is located below the pressure head, and the upper surface of the platform is provided with a groove for placing cigarette filter rods and serving as a pressure support surface.

[0027] The angle adjustment component is disposed on one side of the platform. The angle adjustment component includes a friction rotation drive mechanism, which is used to support one end of the cigarette filter rod and drive the cigarette filter rod to rotate.

[0028] Based on the above, the friction rotation drive mechanism includes a U-shaped frame fixed to the bracket, a first rotating shaft, a second rotating shaft, and a drive gear. The first and second rotating shafts are parallel and close to each other, spanning across the U-shaped frame. A support portion for supporting the cigarette filter rod is formed between the first and second rotating shafts. The height of the support portion is consistent with the height of the groove of the platform. The outer surfaces of the first and second rotating shafts located at the support portion are friction surfaces.

[0029] The drive gear includes a main gear and follower gears. The follower gears are installed on the same ends of the first and second rotating shafts. The main gear meshes with the two follower gears to drive the first and second rotating shafts to rotate in the same direction.

[0030] This utility model has substantial features and progress compared to the prior art. Specifically, this utility model has the following advantages:

[0031] To meet the requirement of automatic detection of multiple points on the circumference of cigarette filter rods, three schemes are set up. In the first scheme, a negative pressure suction head is used to adsorb the cigarette filter rod, causing it to rotate at the detection station to achieve hardness detection at multiple angles. In the second scheme, a clamping method is used to hold one end of the cigarette filter rod, causing it to rotate at the detection station to achieve hardness detection at multiple angles. In the third scheme, friction is used to drive the rotation of the cigarette filter rod, thereby achieving hardness detection at multiple angles. Attached Figure Description

[0032] Figure 1 This is one of the structural schematic diagrams of the multi-angle hardness measuring device for cigarettes and filter rods in Embodiment 1 of this utility model.

[0033] Figure 2 This is the second schematic diagram of the multi-angle hardness measuring device for cigarettes and filter rods in Embodiment 1 of this utility model.

[0034] Figure 3 This is a cross-sectional view of the angle adjustment component in Embodiment 1 of this utility model.

[0035] Figure 4 This is a schematic diagram of the multi-angle hardness measuring device for cigarettes and filter rods in Embodiment 2 of this utility model.

[0036] Figure 5 This is a schematic diagram of the angle adjustment component in Embodiment 2 of this utility model.

[0037] Figure 6 This is a schematic diagram of the multi-angle hardness measuring device for cigarettes and filter rods in Embodiment 3 of this utility model.

[0038] In the diagram: 1. Support; 2. Pressure application assembly; 3. Platform; 4. Angle adjustment assembly; 5. Cigarette filter rod;

[0039] 21. Pressure head; 22. Force sensor; 23. Pressure lifting slide; 24. Cantilever; 25. Guide rod; 26. Distance sensor; 31. Tank; 41. Rotary drive motor; 42. Negative pressure suction head; 43. Clamping mechanism; 45. Linear slide; 46. Lifting slide;

[0040] 421. Suction head; 422. Negative pressure connector; 423. Negative pressure port; 424. U-shaped groove; 425. Negative pressure channel;

[0041] 431. Linear motor; 432. Tie rod; 433. First boss; 434. Second boss; 435. Support frame; 436. First pressure plate; 437. Second pressure plate;

[0042] 441. U-shaped frame; 442. First rotating shaft; 443. Second rotating shaft; 444. Main gear; 445. Follower gear. Detailed Implementation

[0043] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0044] Example 1

[0045] like Figures 1-3 As shown, a multi-angle hardness measuring device for cigarettes and filter rods includes a support 1, a pressure application component 2, a platform 3, and an angle adjustment component 4.

[0046] The pressure application component 2 is mounted on the bracket 1. The pressure application component 2 includes a pressure head 21 that can move vertically and a force sensor 22 for detecting pressure changes in the pressure head 21. In this embodiment, the pressure application component as a whole includes a pressure lifting slide 23, a cantilever 24, a guide rod 25, the force sensor 22, the pressure head 21, and a distance sensor 26. The pressure lifting slide 23 is mounted on the bracket 1. The cantilever 24 is mounted on the moving end of the pressure lifting slide 23. The guide rod 25 is supported on the cantilever 24. The force sensor 22 and the pressure head 21 are located at the bottom end of the guide rod 25. The distance sensor 26 is mounted on the bracket 1 and is used to detect the downward pressing distance of the pressure head 21.

[0047] The platform 3 is located below the pressure head 21, and the upper surface of the platform 3 is provided with a groove 31 for placing the cigarette filter rod 5 and serving as a pressure support surface.

[0048] The angle adjustment component 4 is disposed on one side of the platform 3. The angle adjustment component 4 includes a negative pressure suction head 42 and a rotary drive motor 41. The negative pressure suction head 42 is used to fix one end of the cigarette filter rod 5, and the rotary drive motor 41 is used to drive the negative pressure suction head 42 to make a circular motion.

[0049] Specifically, in this embodiment, the negative pressure suction head 42 includes a suction head 421, a negative pressure connector 422, and negative pressure holes 423. The front end of the suction head 421 is provided with a U-shaped groove 424, and the bottom of the U-shaped groove 424 is provided with a plurality of negative pressure holes 423. The bottom of the U-shaped groove 424 serves as the adsorption surface of the cigarette filter rod 5. The suction head 421 is provided with a negative pressure channel 425 that connects the plurality of negative pressure holes 423. The negative pressure connector 422 is installed at the tail end of the suction head 421 and is connected to the negative pressure channel 425.

[0050] The negative pressure connector 422 is connected to an external negative pressure source. The negative pressure suction force acts on each negative pressure hole 423, forming an adsorption surface at the bottom of the U-shaped groove 424. After the cigarette filter rod 5 is placed in the U-shaped groove 424, the side of the placed part is sucked and fixed by the negative pressure hole. Then, the rotation drive motor 41 is controlled to achieve angle adjustment.

[0051] The rotary drive motor 41 can be a stepper motor, which can precisely control the rotation angle.

[0052] In a preferred embodiment, the angle adjustment component 4 further includes a linear slide 45 and a lifting slide 46. The linear slide 45 moves in the same direction as the length of the groove 31. The lifting slide 46 is installed at the moving end of the linear slide 45 to form a two-stage slide. The rotary drive motor 41 is installed at the moving end of the lifting slide 46 for height adjustment.

[0053] By setting the overall linear sliding and height adjustment, it can achieve multi-point switching in the axial direction, and can also be used with the negative pressure suction head 42 to adjust the height to match the working height of the cigarette filter rod 5.

[0054] Working principle explanation:

[0055] First, adjust the specific position of the angle adjustment component 4 so that its working height is the same as that of the tank 31.

[0056] One end of the cigarette filter rod 5 to be tested is placed into the U-shaped groove 424 by means of robotic arm or manual operation. Negative pressure is activated to tighten the cigarette filter rod 5 to be tested and check for any problems.

[0057] Then the testing begins. First, the negative pressure is released, and the cigarette filter rod 5 is placed naturally on the tank 31. After the pressure head is pressed down, the first set of data is obtained.

[0058] Then, the negative pressure is activated, the cigarette filter rod is sucked and fixed, the rotary drive motor is controlled to rotate a certain angle, and then the negative pressure is released, the cigarette filter rod is naturally placed on the tank 31, and the pressure head is pressed down to obtain the second set of data.

[0059] By analogy, complete one full rotation of the cigarette filter rod. The specific interval for each rotation can be determined according to the experimental design requirements, for example, 30° rotation per rotation.

[0060] This method enables multi-angle measurements, thereby reflecting the pressure distribution of the cigarette filter rod in the circumferential direction.

[0061] Example 2

[0062] like Figure 4 and Figure 5As shown, a multi-angle hardness measuring device for cigarettes and filter rods includes a support 1, a pressure application component 2, a platform 3, and an angle adjustment component 4.

[0063] The pressure application component 2 is mounted on the bracket 1. The pressure application component 2 includes a pressure head 21 that can move vertically and a force sensor 22 for detecting pressure changes in the pressure head 21. In this embodiment, the pressure application component as a whole includes a pressure lifting slide 23, a cantilever 24, a guide rod 25, the force sensor 22, the pressure head 21, and a distance sensor 26. The pressure lifting slide 23 is mounted on the bracket 1. The cantilever 24 is mounted on the moving end of the pressure lifting slide 23. The guide rod 25 is supported on the cantilever 24. The force sensor 22 and the pressure head 21 are located at the bottom end of the guide rod 25. The distance sensor 26 is mounted on the bracket 1 and is used to detect the downward pressing distance of the pressure head 21.

[0064] The platform 3 is located below the pressure head 21, and the upper surface of the platform 3 is provided with a groove 31 for placing the cigarette filter rod 5 and serving as a pressure support surface.

[0065] The angle adjustment component 4 is disposed on one side of the platform 3. The angle adjustment component 4 includes a clamping mechanism 43 and a rotary drive motor 41. The clamping mechanism 43 is used to fix one end of the cigarette filter rod 5, and the rotary drive motor 41 is used to drive the clamping mechanism 43 to make a circular motion.

[0066] In this embodiment, the clamping mechanism 43 includes a linear motor 431, a pull rod 432, a first boss 433, a second boss 434, a support frame 435, a first pressure plate 436, and a second pressure plate 437. The linear motor 431 is installed at the rear end of the support frame 435, and the moving end of the linear motor 431 is connected to the rear end of the pull rod 432. The front end of the pull rod 432 is provided with the first boss 433 and the second boss 434 in sequence.

[0067] The middle parts of the first pressure plate 436 and the second pressure plate 437 are both hinged to the support frame 435. The front ends of the first pressure plate 436 and the second pressure plate 437 are provided with V-shaped grooves for clamping the cigarette filter rod 5. The tail ends of the first pressure plate 436 and the second pressure plate 437 extend into the narrow gap between the first boss 433 and the second boss 434.

[0068] The linear motor 431 drives the pull rod 432 to move forward or backward based on the support frame 435, and drives the first pressure plate 436 and the second pressure plate 437 to open or close around the hinge point. Specifically, the edges of the first boss 433 and the second boss 434 are chamfered to facilitate the tail ends of the first pressure plate and the second pressure plate to enter the space between them.

[0069] In a preferred embodiment, the included angle between the front and rear ends of the first pressure plate 436 and the second pressure plate 437 is an obtuse angle, so as to achieve cooperation between the pull rod and the two pressure plates within a shorter distance.

[0070] Working principle explanation:

[0071] First, adjust the specific position of the angle adjustment component 4 so that its working height is the same as that of the tank 31.

[0072] One end of the cigarette filter rod 5 to be tested is placed between the first pressure plate 436 and the second pressure plate 437 by means of a robotic arm or manual operation, and the linear motor 431 is controlled to clamp it to check for any problems.

[0073] Then the testing began.

[0074] The first step involves controlling the linear motor 431 to drive the pull rod 432 forward a short distance. The first protrusion 433 at the rear end pushes the rear ends of the first pressure plate 436 and the second pressure plate 437 forward. Under the lever principle, the front ends of the first pressure plate 436 and the second pressure plate 437 separate from each other, releasing the cigarette filter rod. The cigarette filter rod 5 is placed on the platform 3 in its natural state. The pressure head presses down to obtain the first set of data.

[0075] The second step involves controlling the linear motor 431 to drive the pull rod 432 to move backward a short distance. The second protrusion 434 at the front end pushes the rear ends of the first pressure plate 436 and the second pressure plate 437 backward. Under the lever principle, the front ends of the first pressure plate 436 and the second pressure plate 437 move closer to each other, pressing the cigarette filter rod tightly. Then, the rotary drive motor 41 is controlled to rotate at a set angle, and the first step is executed again to obtain the second set of data.

[0076] By doing so, multiple sets of data can be obtained.

[0077] Example 3

[0078] like Figure 6 As shown, a multi-angle hardness measuring device for cigarettes and filter rods includes a support 1, a pressure application component 2, a platform 3, and an angle adjustment component 4.

[0079] The pressure application component 2 is mounted on the bracket 1. The pressure application component 2 includes a pressure head 21 that can move vertically and a force sensor 22 for detecting pressure changes in the pressure head 21. In this embodiment, the pressure application component as a whole includes a pressure lifting slide 23, a cantilever 24, a guide rod 25, the force sensor 22, the pressure head 21, and a distance sensor 26. The pressure lifting slide 23 is mounted on the bracket 1. The cantilever 24 is mounted on the moving end of the pressure lifting slide 23. The guide rod 25 is supported on the cantilever 24. The force sensor 22 and the pressure head 21 are located at the bottom end of the guide rod 25. The distance sensor 26 is mounted on the bracket 1 and is used to detect the downward pressing distance of the pressure head 21.

[0080] The platform 3 is located below the pressure head 21, and the upper surface of the platform 3 is provided with a groove 31 for placing the cigarette filter rod 5 and serving as a pressure support surface.

[0081] The angle adjustment component 4 is disposed on one side of the platform 3. The angle adjustment component 4 includes a friction rotation drive mechanism, which is used to support one end of the cigarette filter rod and drive the cigarette filter rod to rotate.

[0082] Specifically, in this embodiment, the friction rotation drive mechanism includes a U-shaped frame 441 fixed to the bracket, a first rotating shaft 442, a second rotating shaft 443, and a drive gear. The first rotating shaft 442 and the second rotating shaft 443 are parallel to each other and span across the U-shaped frame 441. A support portion for supporting the cigarette filter rod is formed between the first rotating shaft 442 and the second rotating shaft 443. The height of the support portion is the same as the height of the groove 31 of the platform 3. The outer surfaces of the first rotating shaft 442 and the second rotating shaft 443 located at the support portion are friction surfaces.

[0083] The drive gear includes a main gear 444 and a follower gear 445. The follower gear 445 is installed on the same end of the first rotating shaft 442 and the second rotating shaft 443. The main gear 444 meshes with the two follower gears 445 to drive the first rotating shaft 442 and the second rotating shaft 443 to rotate in the same direction.

[0084] Working principle explanation:

[0085] The preparation work is the same as in Examples 1 and 2. It is necessary to check whether the friction rotation drive mechanism is working properly.

[0086] At the start of the test, since the friction rotation drive mechanism does not fix the cigarette filter rod, there is no need to perform steps such as gripping and releasing. The pressure head can be pressed down directly to obtain the first set of data.

[0087] Then, the main gear 444 is controlled to rotate at a set angle, and the follower gear 445 drives the first rotating shaft 442 and the second rotating shaft 443 to rotate at a preset angle. Under the action of friction, the cigarette filter rod 5 is also driven to rotate at a preset angle synchronously. The pressure head of the machine is pressed down and the second set of data is obtained.

[0088] This process is repeated to obtain multiple sets of data.

[0089] This method allows for the testing of the hardness of cigarette filter rods at multiple angles along the circumference.

[0090] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A multi-angle rigidity measuring device for cigarettes and filter rods, characterized in that: Includes a support frame, pressure application components, a platform, and an angle adjustment component; The pressure application assembly is mounted on a bracket, and the pressure application assembly includes a pressure head that can move in a vertical direction and a force sensor for detecting changes in the pressure of the pressure head; The platform is located below the pressure head, and the upper surface of the platform is provided with a groove for placing cigarette filter rods and serving as a pressure support surface. The angle adjustment component is located on one side of the platform. The angle adjustment component includes a negative pressure suction head and a rotary drive motor. The negative pressure suction head is used to fix one end of the cigarette filter rod, and the rotary drive motor is used to drive the negative pressure suction head to make a circular motion.

2. The multi-angle rigidity measuring apparatus for a cigarette and a filter rod according to claim 1, characterized by: The angle adjustment assembly also includes a linear slide and a lifting slide. The linear slide moves in the same direction as the length of the groove. The lifting slide is installed on the moving end of the linear slide to form a two-stage slide. The rotary drive motor is installed on the moving end of the lifting slide for height adjustment.

3. The multi-angle rigidity measuring apparatus for a cigarette and a filter rod according to claim 1 or 2, characterized by: The negative pressure suction head includes a suction head, a negative pressure connector, and negative pressure holes. The front end of the suction head is provided with a U-shaped groove, and the bottom of the U-shaped groove is provided with several negative pressure holes. The bottom of the U-shaped groove serves as the adsorption surface of the cigarette filter rod. The suction head is provided with a negative pressure channel connecting several negative pressure holes. The negative pressure connector is installed at the tail end of the suction head and is connected to the negative pressure channel.

4. The multi-angle rigidity measuring apparatus for a cigarette and a filter rod according to claim 1 or 2, characterized by: The pressure application assembly includes a pressure lifting slide, a cantilever, a guide rod, a force sensor, a pressure head, and a distance sensor. The pressure lifting slide is mounted on a bracket, the cantilever is mounted on the moving end of the pressure lifting slide, the guide rod is supported on the cantilever, the force sensor and the pressure head are located at the bottom end of the guide rod, and the distance sensor is mounted on the bracket and used to detect the downward pressing distance of the pressure head.

5. A multi-angle rigidity measuring device for cigarettes and filter rods, characterized in that: Includes a support frame, pressure application components, a platform, and an angle adjustment component; The pressure application assembly is mounted on a bracket, and the pressure application assembly includes a pressure head that can move in a vertical direction and a force sensor for detecting changes in the pressure of the pressure head; The platform is located below the pressure head, and the upper surface of the platform is provided with a groove for placing cigarette filter rods and serving as a pressure support surface. The angle adjustment component is located on one side of the platform. The angle adjustment component includes a clamping mechanism and a rotary drive motor. The clamping mechanism is used to fix one end of the cigarette filter rod, and the rotary drive motor is used to drive the clamping mechanism to make a circular motion.

6. The multi-angle rigidity measuring apparatus for cigarettes and filter rods according to claim 5, characterized in that: The clamping mechanism includes a linear motor, a pull rod, a first boss, a second boss, a support frame, a first pressure plate, and a second pressure plate. The linear motor is installed at the rear end of the support frame, and the moving end of the linear motor is connected to the rear end of the pull rod. The front end of the pull rod is provided with a first boss and a second boss in sequence. The middle parts of the first pressure plate and the second pressure plate are both hinged to the support frame. The front ends of the first pressure plate and the second pressure plate are provided with V-shaped grooves for clamping cigarette filter rods on opposite sides. The tail ends of the first pressure plate and the second pressure plate extend into the narrow gap between the first boss and the second boss. The linear motor drives the pull rod to move forward or backward based on the support frame, and drives the first pressure plate and the second pressure plate to open or close around the hinge point.

7. The multi-angle rigidity measuring apparatus for a cigarette and a filter rod according to claim 6, characterized by: The edges of the first boss and the second boss are chamfered.

8. The multi-angle rigidity measuring apparatus for a cigarette and a filter rod according to claim 7, characterized by: The included angle between the front and rear ends of the first and second pressure plates is an obtuse angle.

9. A multi-angle rigidity measuring device for cigarettes and filter rods, characterized in that: The device comprises a support, a pressure applying assembly, a carrier and an angle adjusting assembly; The pressure applying assembly is installed on the support, and comprises a pressure head movable in a vertical direction and a force sensor for detecting pressure change of the pressure head; The carrier is arranged below the pressure head, and an upper end surface of the carrier is provided with a groove for placing a cigarette filter rod and serving as a pressure receiving support surface; The angle adjusting assembly is arranged on one side of the carrier, and comprises a frictional rotary driving mechanism for supporting one end of the cigarette filter rod and driving the cigarette filter rod to rotate.

10. The multi-angle rigidity measuring apparatus for cigarettes and filter rods according to claim 9, characterized in that: The frictional rotary driving mechanism comprises a U-shaped frame fixed to the support, a first rotating shaft and a second rotating shaft, the first rotating shaft and the second rotating shaft are parallel to each other and close to each other and span the U-shaped frame, a support part for supporting the cigarette filter rod is formed between the first rotating shaft and the second rotating shaft, the height of the support part is consistent with the height of the groove of the carrier, and the outer surfaces of the first rotating shaft and the second rotating shaft at the support part are friction surfaces; The driving gear comprises a main gear and a follower gear, the follower gears are installed on the same ends of the first rotating shaft and the second rotating shaft, the main gear is engaged with the two follower gears, and the main gear is used for driving the first rotating shaft and the second rotating shaft to rotate in the same direction.

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