Device for testing stability of lap joint of cigarette filter stick

Abstract

The utility model discloses a device for testing the stability of a lap joint of a cigarette filter stick. The testing device comprises a machine body (1), a rotating mechanism (2) and a clamping mechanism (3), the rotating mechanism (2) is positioned on the machine body (1); the clamping mechanism (3) is positioned on the rotating mechanism (2) and is used for clamping a cigarette filter stick (7); and the rotating mechanism (2) drives the clamping mechanism (3) to twist, so that the clamping mechanism (3) drives the cigarette filter stick (7) to twist. The device for testing the stability of the lap joint of the cigarette filter stick is firstly provided, the change of the torque T of the filter stick along with the torsion angle phi is monitored through a torsion test, and a torsion curve T-phi diagram is drawn. Furthermore, the stability of the lap joint of the cigarette filter stick is effectively evaluated through a filter stick torsion curve T-phi diagram, technical support is provided for the aspects of formula applicability, process optimization, quality evaluation and the like of the cigarette filter stick, and practical significance is achieved.

Description

Technical Field

[0001] The utility model relates to the field of tobacco products, in particular to a testing device for the stability of a cigarette filter rod overlap, and more particularly to a testing device for evaluating the stability of a cigarette filter rod overlap by using torsion mechanical properties. Background Art

[0002] As a filter material, filter rods can effectively intercept harmful substances in cigarette smoke, such as tar, thereby reducing the harm of smoking cigarettes. With the rapid development of the tobacco industry, the stability of the joint of cigarette filter rods has an increasingly prominent impact on the quality of cigarette products and the production process. During the production and processing process, factors such as technology, equipment, environment, and product formula may lead to the stability of the joint of the filter rod, which in turn affects the production efficiency of high-speed cigarette machines during the production of cigarettes.

[0003] At present, the test of filter rod joint stability is carried out according to the national standard "GB / T 22838.10-2009 Determination of physical properties of cigarettes and filter rods Part 10: Burst". The specific content is "The operator pinches the two ends of the cigarette with the thumb and index finger of both hands, and gently twists it 90° once. If it bursts at the joint, use a steel ruler to measure the burst length and the length of the cigarette. Calculate the ratio of the length of the burst at the joint to the length of the cigarette. If the length of the burst at the joint is greater than 1 / 4 of the length of the cigarette, the test is judged as a burst."

[0004] The above method manually twists the filter rod and observes the appearance of the filter rod to determine whether there is a crack. If a crack is found, it is considered that the stability of the crack is poor. Sometimes, a subtle crack may not be discovered in time. Therefore, the current method relies on manual operation, and the test results vary greatly. Different testers may get different results when testing the same sample, which is error-prone and time-consuming. In addition, people have an inertial thinking that in order to determine whether a crack has occurred, they must obtain an image of the actual test cigarette. Whether it is direct observation by humans or obtaining an image of the cigarette through an image acquisition device first, in general, if you want to determine whether a crack has occurred, you can only observe the crack from the cigarette image, and there is no other way to determine whether a crack has occurred.

[0005] Therefore, it is desirable to provide an objective and scientific new method for testing and judging the stability of the joint of a cigarette filter rod.

[0006] In order to solve the above problems, the present utility model is proposed. Utility Model Content

[0007] In order to further improve the objectivity and scientificity of the operation, the utility model uses a filter rod mechanical performance evaluation index through a torsion test to evaluate the stability of the filter rod joint. The utility model first proposes a test device for the stability of the cigarette filter rod joint, monitors the change of the filter rod torque T with the torsion angle Ф through a torsion test, and draws a torsion curve T-Ф diagram. If the T-Ф diagram shows that the torque T decreases with the increase of the torsion angle Ф during the 90° torsion process of the filter rod, it is determined that the filter rod has burst. The utility model effectively evaluates the joint stability of the filter rod through the filter rod torsion curve T-Ф diagram, provides technical support for the formula applicability, process optimization and quality evaluation of cigarette filter rods, and has practical significance.

[0008] The utility model provides a testing device for the overlap stability of a cigarette filter rod, which comprises a body 1, a rotating mechanism 2 and a clamping mechanism 3;

[0009] The rotating mechanism 2 is located on the machine body 1;

[0010] The clamping mechanism 3 is located on the rotating mechanism 2, and the clamping mechanism 3 is used to clamp the cigarette filter rod 7;

[0011] The rotating mechanism 2 drives the clamping mechanism 3 to twist, so that the clamping mechanism 3 drives the cigarette filter rod 7 to twist.

[0012] Preferably, there are two rotating mechanisms 2, and the two rotating mechanisms 2 are arranged facing each other;

[0013] Each of the rotating mechanisms 2 is provided with a clamping mechanism 3 , and the two clamping mechanisms 3 are arranged facing each other; here, arranged facing each other means that the two clamping mechanisms 3 face each other.

[0014] The cigarette filter rod 7 clampers on the two clamping mechanisms 3 clamp the two ends of the cigarette filter rod 7 respectively.

[0015] Preferably, the testing device further comprises a positioning fine-tuning system 4 and a support block 5;

[0016] The positioning fine-tuning system 4 and the supporting block 5 are located on the table of the machine body 1;

[0017] One of the two rotating mechanisms 2 is located on the positioning fine-tuning system 4 , and the other is located on the supporting block 5 .

[0018] That is to say, when two clamping mechanisms 3 are needed to jointly clamp the cigarette filter rod 7 during actual use, the rotating mechanism 2 and the clamping mechanism 3 located on the support block 5 remain stationary, while the other rotating mechanism 2 and the clamping mechanism 3 adjust their positions under the drive of the positioning fine-tuning system 4 so that the two ends of the cigarette filter rod 7 can be stably clamped.

[0019] Preferably, the rotating mechanism 2 includes a base plate 2-1, a rotating motor 2-2, a motor mounting seat 2-3, a torque sensor 2-4, a sensor mounting seat 2-5, a coupling 2-6, a bearing seat 2-7, a connecting shaft 2-8, and a clamping mechanism 3 mounting seat 2-9;

[0020] The rotating motor 2-2, the torque sensor 2-4 and the connecting shaft 2-8 are connected via the coupling 2-6;

[0021] The mounting seat 2-9 of the clamping mechanism 3 is fixed on the connecting shaft 2-8, and the clamping mechanism 3 is mounted on the mounting seat 2-9 of the clamping mechanism 3 of the rotating mechanism 2;

[0022] The motor mounting seat 2-3, the sensor mounting seat 2-5 and the bearing seat 2-7 are fixed on the base plate 2-1;

[0023] The rotating motor 2-2 is fixed on the motor mounting seat 2-3;

[0024] The torque sensor 2-4 is mounted on the sensor mounting seat 2-5;

[0025] The connecting shaft 2-8 is installed on the bearing seat 2-7.

[0026] Preferably, the clamping mechanism 3 comprises a clamping bottom plate 3-1, a clamping plate 1 3-2, a clamping plate 2 3-3, and a cigarette filter rod baffle 3-4;

[0027] The clamping plate 1 3-2 and the clamping plate 2 3-3 are installed on the clamping bottom plate 3-1, and the clamping plate 1 3-2 and the clamping plate 2 3-3 are combined to clamp the cigarette filter rod 7;

[0028] The cigarette filter rod baffle 3-4 is fixed on the clamping plate 3-2 and is located below the area where the cigarette filter rod 7 is placed. The function of the cigarette filter rod baffle 3-4 is to prevent the cigarette filter rod 7 from falling when the cigarette filter rod 7 is placed.

[0029] Preferably, the clamping base plate 3-1 is provided with a T-slot 3-1-1, a centering indicator slot 3-1-2 and a center indicator slot 3-1-3; the T-slot 3-1-1 is used to install the clamping plate 1 3-2 and the clamping plate 2 3-3; the centering indicator slot 3-1-2 and the center indicator slot 3-1-3 are used to provide a reference for the rotation axis during manual clamping;

[0030] The clamping surfaces of the clamping plate 1 3-2 and the clamping plate 2 3-3 are both provided with grooves 3-5 for increasing the friction force of clamping the cigarette filter rod 7; wherein the clamping surface refers to the facing surface of the clamping plate 1 3-2 and the clamping plate 2 3-3, that is, the surface in contact with the cigarette filter rod 7.

[0031] Preferably, the clamping mechanism 3 can be clamped manually, or can be clamped by electric clamps, pneumatic clamps, or a three-jaw chuck.

[0032] Preferably, the body 1 is further provided with a touch screen 6, and the operation of the test device is controlled and the torsion angle and speed are set via the touch screen 6. More preferably, the touch screen 6 is mounted on the front panel of the body 1.

[0033] Preferably, the torque sensors 2-4 are high-precision sensors that can monitor torque changes during the process in real time.

[0034] A testing method for the stability of the joint of a cigarette filter rod. The stability of the joint of a cigarette filter rod refers to whether a crack occurs at the joint of the cigarette filter rod 7. The testing method is: using the testing device, monitoring the change of the torque T of the cigarette filter rod 7 with the torsion angle Ф, and drawing a T-Ф torsion curve, and judging whether a crack occurs at the joint of the cigarette filter rod 7 according to the T-Ф torsion curve.

[0035] Preferably, the torsion angle Φ is less than or equal to 90°;

[0036] When the T-Ф torsion curve shows that as the torsion angle φ increases, the torque T continues to increase or remains unchanged, it indicates that within the torque angle Ф, no crack occurs at the overlap of the cigarette filter rod 7;

[0037] When the T-Ф torsion curve shows that as the torsion angle φ increases, the torque T first increases and then decreases, it indicates that within the torque angle Ф, a burst occurs at the overlap of the cigarette filter rod 7, and the torque angle Ф corresponding to the place where the torque T first increases and then decreases is the torque angle Ф corresponding to when the burst occurs.

[0038] In the actual process, it is possible that the burst may occur at the non-overlapping position, but because the overlap is less stressed than other positions, the burst basically occurs at the overlap, and other positions can be ignored.

[0039] Compared with the prior art, the utility model has the following beneficial effects:

[0040] 1. The utility model first proposes to use filter rod mechanical performance evaluation indicators to evaluate the stability of the filter rod joint, and effectively evaluates the joint stability through the filter rod torsion curve T-Ф diagram. The curve diagram can objectively and timely find out whether and when the joint has burst, and the error is small. Furthermore, the utility model also proposes a test device for twisting and clamping cigarette filter rods, and realizes the drawing of the torsion curve T-Ф diagram. The test device and test method of the utility model provide technical support for the formula applicability, process optimization and quality evaluation of cigarette filter rods, and have practical significance.

[0041] 2. The testing method of the utility model is completely independent of the image of the actual test cigarette, but effectively evaluates the joint stability through the filter rod torsion curve T-Ф graph. The curve graph can objectively and timely discover whether and when a burst occurs. The utility model provides an objective and scientific new method for testing and judging the stability of the joint of a cigarette filter rod.

[0042] 3. The test device of the utility model comprises a clamping mechanism 3 and a rotating mechanism 2. The clamping mechanism 3 is used to clamp the cigarette filter rod 7. The rotating mechanism 2 drives the clamping mechanism 3 and the cigarette filter rod 7 to twist, so as to monitor the change of the filter rod torque T with the twisting angle Ф through the twisting test, and draw a twisting curve T-Ф diagram.

[0043] 4. The clamping mechanism 3 and the rotating mechanism 2 of the utility model are two sets arranged facing each other, one of the two rotating mechanisms 2 is located on the positioning fine-tuning system 4, and the other is located on the supporting block 5. In actual use, when two clamping mechanisms 3 are needed to clamp the cigarette filter rod 7 together, the rotating mechanism 2 and the clamping mechanism 3 located on the supporting block 5 remain stationary, while the other rotating mechanism 2 and the clamping mechanism 3 are adjusted in position under the drive of the positioning fine-tuning system 4, so as to stably clamp the two ends of the cigarette filter rod 7.

[0044] 5. The testing device of the utility model also includes a cigarette filter rod baffle 3-4, which is fixed on the clamping plate 3-2 and is located below the area where the cigarette filter rod 7 is placed. The function of the cigarette filter rod baffle 3-4 is to prevent the cigarette filter rod 7 from falling when the cigarette filter rod 7 is placed.

[0045] 6. The clamping surfaces of the clamping plate 1 3 - 2 and the clamping plate 2 3 - 3 of the clamping mechanism of the present invention are both provided with grooves 3 - 5 , which can increase the friction force of clamping the cigarette filter rod 7 .

[0046] 7. The clamping base plate 3-1 of the clamping mechanism of the utility model is provided with a T-slot 3-1-1, a centering indicator slot 3-1-2 and a center indicator slot 3-1-3; the T-slot 3-1-1 is used for installing the clamping plate 1 3-2 and the clamping plate 2 3-3; the centering indicator slot 3-1-2 and the center indicator slot 3-1-3 are used for providing a reference for the rotation axis during manual clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 A schematic diagram of the structure of a testing device for the overlap stability of a cigarette filter rod;

[0048] Figure 2 A front view of a testing device for the overlap stability of a cigarette filter rod;

[0049] Figure 3 It is a schematic diagram of the rotating mechanism structure;

[0050] Figure 4 It is a schematic diagram of the clamping mechanism structure;

[0051] Figure 5 It is a schematic diagram of the structure of the clamping base plate;

[0052] Figure 6 is the T-Ф torsion curve of the cigarette filter rod without cracking in Example 1;

[0053] Figure 7 The T-Φ torsion curve of the cigarette filter rod with a burst hole in Example 2;

[0054] Figure 8 The T-Φ torsion curve of the cigarette filter rod with a burst hole in Example 3;

[0055] Fig. 9 This is a diagram of the filter rod bursting in Example 3.

[0056] The names of the reference numerals in the description of the drawings: 1. body; 2. rotating mechanism; 3. clamping mechanism; 4. positioning fine-tuning system; 5. supporting block; 6. touch screen; 7. filter rod;

[0057] 2-1, bottom plate; 2-2, rotating motor; 2-3, motor mounting seat; 2-4, torque sensor; 2-5, sensor mounting seat; 2-6, coupling; 2-7, bearing seat; 2-8, connecting shaft; 2-9, clamping mechanism mounting seat;

[0058] 3-1, clamping bottom plate; 3-2, clamping plate one; 3-3, clamping plate two; 3-4, filter rod baffle; 3-5, groove; 3-1-1, T-slot; 3-1-2, centering indicator groove; 3-1-3, center indicator groove. DETAILED DESCRIPTION

[0059] The utility model is further described in detail below in conjunction with the embodiments.

[0060] Those skilled in the art will understand that the following examples are only used to illustrate the present invention and should not be considered to limit the scope of the present invention. If no specific techniques or conditions are specified in the examples, the techniques or conditions described in the literature in the field or the product instructions are used. If the manufacturer of the materials or equipment used is not specified, they are all conventional products that can be purchased.

[0061] Those skilled in the art will appreciate that, unless expressly stated otherwise, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present utility model refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof. It should be understood that when we refer to an element as being "connected" to another element, it may be directly connected to the other element, or there may be intermediate elements. In addition, the "connection" used here may include wireless connection.

[0062] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two. The terms "inside", "upper", "lower", etc., indicating positions or state relationships, are based on the positions or state relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operate in a specific position, and therefore cannot be understood as limiting the present invention.

[0063] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "provided with" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention will be understood according to specific circumstances.

[0064] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein, including technical terms and scientific terms, have the same meaning as the general understanding of ordinary technicians in the field to which the utility model belongs. It should also be understood that those terms such as those defined in general dictionaries should be understood to have the same meaning as the meaning in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless defined as herein.

[0065] The cigarette filter rod overlap stability testing device used in this embodiment includes a body 1, a rotating mechanism 2 and a clamping mechanism 3;

[0066] The rotating mechanism 2 is located on the machine body 1;

[0067] The clamping mechanism 3 is located on the rotating mechanism 2, and the clamping mechanism 3 is used to clamp the cigarette filter rod 7;

[0068] The rotating mechanism 2 drives the clamping mechanism 3 to twist, so that the clamping mechanism 3 drives the cigarette filter rod 7 to twist.

[0069] There are two rotating mechanisms 2, and the two rotating mechanisms 2 are arranged facing each other;

[0070] Each of the rotating mechanisms 2 is provided with a clamping mechanism 3 , and the two clamping mechanisms 3 are arranged facing each other; here, arranged facing each other means that the two clamping mechanisms 3 face each other.

[0071] The cigarette filter rod 7 clampers on the two clamping mechanisms 3 clamp the two ends of the cigarette filter rod 7 respectively.

[0072] The testing device also includes a positioning fine-tuning system 4 and a support block 5;

[0073] The positioning fine-tuning system 4 and the supporting block 5 are located on the table of the machine body 1;

[0074] One of the two rotating mechanisms 2 is located on the positioning fine-tuning system 4 , and the other is located on the supporting block 5 .

[0075] That is to say, when two clamping mechanisms 3 are needed to jointly clamp the cigarette filter rod 7 during actual use, the rotating mechanism 2 and the clamping mechanism 3 located on the support block 5 remain stationary, while the other rotating mechanism 2 and the clamping mechanism 3 adjust their positions under the drive of the positioning fine-tuning system 4 so that the two ends of the cigarette filter rod 7 can be stably clamped.

[0076] The rotating mechanism 2 includes a base plate 2-1, a rotating motor 2-2, a motor mounting seat 2-3, a torque sensor 2-4, a sensor mounting seat 2-5, a coupling 2-6, a bearing seat 2-7, a connecting shaft 2-8, and a clamping mechanism 3 mounting seat 2-9;

[0077] The rotating motor 2-2, the torque sensor 2-4 and the connecting shaft 2-8 are connected via the coupling 2-6;

[0078] The mounting seat 2 - 9 of the clamping mechanism 3 is fixed on the connecting shaft 2 - 8 , and the clamping mechanism 3 is mounted on the mounting seat 2 - 9 of the clamping mechanism 3 of the rotating mechanism 2 .

[0079] The motor mounting seat 2-3, the sensor mounting seat 2-5 and the bearing seat 2-7 are fixed on the bottom plate 2-1.

[0080] The rotating motor 2-2 is fixed on the motor mounting seat 2-3.

[0081] The torque sensor 2-4 is mounted on the sensor mounting seat 2-5;

[0082] The connecting shaft 2-8 is installed on the bearing seat 2-7.

[0083] The clamping mechanism 3 includes a clamping bottom plate 3-1, a clamping plate 1 3-2, a clamping plate 2 3-3, and a cigarette filter rod baffle 3-4.

[0084] The clamping plate 1 3-2 and the clamping plate 2 3-3 are installed on the clamping bottom plate 3-1, and the clamping plate 1 3-2 and the clamping plate 2 3-3 are combined to clamp the cigarette filter rod 7;

[0085] The cigarette filter rod baffle 3-4 is fixed on the clamping plate 3-2 and is located below the area where the cigarette filter rod 7 is placed. The function of the cigarette filter rod baffle 3-4 is to prevent the cigarette filter rod 7 from falling when the cigarette filter rod 7 is placed.

[0086] The clamping bottom plate 3-1 is provided with a T-slot 3-1-1, a centering indicator slot 3-1-2 and a center indicator slot 3-1-3; the T-slot 3-1-1 is used to install the clamping plate 1 3-2 and the clamping plate 2 3-3; the centering indicator slot 3-1-2 and the center indicator slot 3-1-3 are used to provide a reference for the rotation axis during manual clamping;

[0087] The clamping surfaces of the clamping plate 1 3-2 and the clamping plate 2 3-3 are both provided with grooves 3-5 for increasing the friction force of clamping the cigarette filter rod 7; wherein the clamping surface refers to the facing surface of the clamping plate 1 3-2 and the clamping plate 2 3-3, that is, the surface in contact with the cigarette filter rod 7.

[0088] The clamping mechanism 3 is manually clamped.

[0089] The machine body 1 is also provided with a touch screen 6, through which the operation of the test device is controlled and the torsion angle and speed are set. The touch screen 6 is installed on the front panel of the machine body 1.

[0090] The torque sensor 2-4 is a high-precision sensor that can monitor the torque changes during the process in real time.

[0091] Example 1

[0092] The torsion curve T-Ф diagram drawn in this embodiment is as follows Figure 6 As shown, from Figure 6 It can be seen that as the torsion angle φ increases, the torque T continues to increase, indicating that within the torque angle Φ, no cracks appear at the overlap of the cigarette filter rod 7 .

[0093] Example 2

[0094] The torsion curve T-Ф diagram drawn in this embodiment is as follows Figure 7 As shown, from Figure 7 It can be seen that as the torsion angle φ increases, the torque T first increases and then decreases, indicating that within the torque angle Ф, a burst occurs at the overlap of the cigarette filter rod 7, and the torque angle Ф corresponding to the place where the torque T first increases and then decreases is equal to 40°, so the corresponding torque angle when the burst occurs is 40°.

[0095] Example 3

[0096] The torsion curve T-Ф diagram drawn in this embodiment is as follows Figure 8 As shown, from Figure 8 It can be seen that as the torsion angle φ gradually increases, the torque T shows a trend of increasing first and then decreasing, indicating that during this torque process, a crack occurs at the joint of the cigarette filter rod 8, and the torque angle Φ corresponding to the position where the torque T increases first and then decreases is equal to 60°, so the torque angle corresponding to the crack occurs is 60°. Fig. 9 shown.

Claims

1. A cigarette filter rod joint stability testing device, characterized in that: It comprises a body (1), a rotating mechanism (2) and a clamping mechanism (3); The rotating mechanism (2) is located on the machine body (1); The clamping mechanism (3) is located on the rotating mechanism (2), and the clamping mechanism (3) is used to clamp the cigarette filter rod (7); The rotating mechanism (2) drives the clamping mechanism (3) to twist, so that the clamping mechanism (3) drives the cigarette filter rod (7) to twist.

2. The testing device according to claim 1, characterized in that: There are two rotating mechanisms (2), and the two rotating mechanisms (2) are arranged facing each other; Each of the rotating mechanisms (2) is provided with a clamping mechanism (3), and the two clamping mechanisms (3) are arranged facing each other; The cigarette filter rod (7) clamps on the two clamping mechanisms (3) clamp the two ends of the cigarette filter rod (7) respectively.

3. The testing device according to claim 2, characterized in that: The testing device also includes a positioning fine-tuning system (4) and a support block (5); The positioning fine-tuning system (4) and the supporting block (5) are located on the table of the machine body (1); One of the two rotating mechanisms (2) is located on the positioning fine-tuning system (4), and the other is located on the supporting block (5).

4. The testing device according to claim 1, characterized in that: The rotating mechanism (2) comprises a base plate (2-1), a rotating motor (2-2), a motor mounting seat (2-3), a torque sensor (2-4), a sensor mounting seat (2-5), a coupling (2-6), a bearing seat (2-7), a connecting shaft (2-8), and a clamping mechanism (3) mounting seat (2-9); The rotating motor (2-2), the torque sensor (2-4) and the connecting shaft (2-8) are connected via the coupling (2-6); The clamping mechanism (3) mounting seat (2-9) is fixed on the connecting shaft (2-8), and the clamping mechanism (3) is mounted on the clamping mechanism (3) mounting seat (2-9) of the rotating mechanism (2); The motor mounting seat (2-3), the sensor mounting seat (2-5) and the bearing seat (2-7) are fixed on the bottom plate (2-1); The rotating motor (2-2) is fixed on the motor mounting seat (2-3); The torque sensor (2-4) is mounted on the sensor mounting seat (2-5); The connecting shaft (2-8) is mounted on the bearing seat (2-7).

5. The testing device according to claim 1, characterized in that: The clamping mechanism (3) comprises a clamping bottom plate (3-1), a clamping plate 1 (3-2), a clamping plate 2 (3-3), and a cigarette filter rod baffle (3-4); The clamping plate 1 (3-2) and the clamping plate 2 (3-3) are mounted on the clamping bottom plate (3-1), and the clamping plate 1 (3-2) and the clamping plate 2 (3-3) are combined to clamp the cigarette filter rod (7); The cigarette filter rod baffle (3-4) is fixed on the clamping plate (3-2) and is located below the area where the cigarette filter rod (7) is placed.

6. The testing device according to claim 5, characterized in that: The clamping bottom plate (3-1) is provided with a T-slot (3-1-1), a centering indicator slot (3-1-2) and a center indicator slot (3-1-3); the T-slot (3-1-1) is used to install the first clamping plate (3-2) and the second clamping plate (3-3); the centering indicator slot (3-1-2) and the center indicator slot (3-1-3) are used to provide a reference for the rotation axis during manual clamping; The clamping surfaces of the first clamping plate (3-2) and the second clamping plate (3-3) are both provided with grooves (3-5) for increasing the friction force of clamping the cigarette filter rod (7); wherein the clamping surface refers to the facing surface of the first clamping plate (3-2) and the second clamping plate (3-3).

7. The testing device according to claim 1, characterized in that: The clamping mechanism (3) can be clamped manually, or can be clamped by electric clamping jaws, pneumatic clamping jaws, or a three-jaw chuck.

8. The testing device according to claim 1, characterized in that: The machine body (1) is also provided with a touch screen (6), and the operation of the testing device is controlled by the touch screen (6), and the torsion angle and speed are set.

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