Sample injector suitable for cigarette filter sticks of different specifications

By setting different diameter cigarette filter grooves on the cigarette separating roller and using the adjustment method of movable rod or outer groove ring, the problem of the inability to adapt to different specifications of cigarette filter rods in the prior art is solved, realizing flexible sample feeding adaptability and improving the applicability of the sampler.

CN224055330UActive Publication Date: 2026-03-31ZHENGZHOU TOBACCO RES INST OF CNTC +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-19
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing cigarette filter rod feeders cannot accommodate cigarette filter rods of different specifications, which limits the applicability of automated feeding devices.

Method used

Design a cigarette separating roller with cigarette slots of different diameters distributed on its circumference. By adjusting the movable rod or the outer groove ring, ensure that only one cigarette slot is in operation, adapting to the feeding of cigarette filter rods of different specifications.

Benefits of technology

It enables flexible and adaptable sample injection for cigarette filter rods of different specifications, improving the adjustability and applicability of the sampler.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a sample injector suitable for cigarette filter sticks with different specifications. The sample injector comprises a bracket, a hopper, a cigarette separating roller and a side protecting plate, at least two cigarette supporting grooves extending in the axial direction are distributed in the circumferential face of the cigarette separating roller, the groove faces of the cigarette supporting grooves are arc faces, the diameters of the cigarette supporting grooves are different, and the two ends of the cigarette separating roller are rotationally matched with the support; the hopper is fixed on the bracket and is positioned above the cigarette separating roller; the side protecting plate is an arc plate, is fixed on the bracket and wraps the cigarette separating roller; the upper end of the side protection plate is connected with an outlet in the lower end of the hopper to form an upper cigarette inlet channel, and the lower end of the side protection plate is provided with a lower cigarette outlet channel used for being matched with a cigarette branch groove. The sample injector has the advantages of being capable of meeting sample injection requirements of cigarette filter sticks of different specifications and high in adjustment flexibility.
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Description

Technical Field

[0001] This utility model relates to the field of cigarette performance testing technology, specifically, to a sampler suitable for cigarette filter rods of different specifications. Background Technology

[0002] In order to achieve automation, automated devices for feeding cigarette filter rods are usually designed in equipment for testing cigarette performance indicators.

[0003] Currently, common automated cigarette filter feeding devices typically use a cigarette separating roller with negative pressure for feeding. However, the cigarette separating roller is usually designed to a uniform specification, while the specifications of cigarette filters are relatively diverse. Therefore, it is necessary to design a feeder that can be adapted to different specifications of cigarette filters to solve this problem.

[0004] For example, in the device of the invention entitled "A Filter Rod Cutting Instrument for Detection" with announcement number CN214952516U, a sample feeding device of the type of cigarette filter rod is provided. It can only be adapted to a single type of cigarette filter rod and cannot be adapted to cigarette filter rods of different specifications.

[0005] In order to solve the above problems, people have been seeking an ideal technological solution. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing a sampler that can adapt to the sample feeding requirements of cigarette filter rods of different specifications and has high adjustment flexibility.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is: a sampler suitable for cigarette filter rods of different specifications, including a support, a hopper, a cigarette separating roller and a side guard plate;

[0008] The cigarette-distributing roller has at least two axially extending cigarette grooves distributed on its circumferential surface. The groove surface of the cigarette groove is an arc surface, and the diameter of each cigarette groove is different. The two ends of the cigarette-distributing roller are rotatably engaged with the support.

[0009] The hopper is fixed to the bracket and located above the tobacco separating roller;

[0010] The side guard plate is an arc plate, and the side guard plate is fixed on the bracket and wrapped around the smoke separating roller;

[0011] The cigarette slot is filled with a removable movable rod.

[0012] The upper end of the side guard plate is connected to the lower outlet of the hopper to form an upper smoke inlet channel, and the lower end of the side guard plate is provided with a lower smoke outlet channel for cooperating with the smoke support slot.

[0013] Based on the above, the cigarette slot is filled with a movable rod, the inner surface of which is shaped to fit the slot surface of the cigarette slot, and the outer surface of which is shaped to align with the outer circumferential surface of the cigarette distribution roller.

[0014] Based on the above, the cigarette distribution roller is provided with a negative pressure channel, and the end of the negative pressure channel is located in each cigarette slot.

[0015] Based on the above, the side guard plate includes a single plate or at least two plates, and the lower smoke outlet channel is a rectangular long groove opened on the single plate or a wide slit formed by splicing two plates.

[0016] Based on the above, there are four cigarette slots, the rotation angle between adjacent cigarette slots is 90°, and the diameters of the cigarette slots are arranged in ascending order.

[0017] A sampler suitable for cigarette filter rods of different specifications includes a support, a hopper, a cigarette separating roller, and an outer groove ring.

[0018] The cigarette-distributing roller has at least two axially extending cigarette grooves distributed on its circumferential surface. The groove surface of the cigarette groove is an arc surface, and the diameter of each cigarette groove is different. The two ends of the cigarette-distributing roller are rotatably engaged with the support.

[0019] The outer groove ring sleeve, under the action of its own deformation force, has a frictional ring that is clamped on the outer surface of the cigarette distribution roller. The outer groove ring sleeve is provided with a notch that matches any cigarette slot, and the boundary of the notch is greater than or equal to the boundary of the cigarette slot.

[0020] The hopper is fixed on the bracket and located above the smoke separating roller, and the lower outlet of the hopper is in contact with the outer surface of the outer groove ring.

[0021] Based on the above, a positioning plate is provided at one or both ends of the cigarette-distributing roller, and a positioning groove is provided on the positioning plate. A photoelectric switch is provided on the bracket corresponding to the positioning groove to obtain the number of rotations of the cigarette-distributing roller.

[0022] Based on the above, the positioning grooves on the positioning discs at both ends are set with a rotation angle, and the photoelectric switches at both ends are installed in the same position so as to obtain the rotation angle of the tobacco separating roller.

[0023] Based on the above, the outer groove ring is made of plastic.

[0024] Based on the above, there are four cigarette slots, the rotation angle between adjacent cigarette slots is 90°, and the diameters of the cigarette slots are arranged in ascending order.

[0025] Based on the above, the cigarette distribution roller is provided with a negative pressure channel, and the end of the negative pressure channel is located in each cigarette slot.

[0026] This utility model has substantial features and progress compared to the prior art. Specifically, this utility model has the following advantages:

[0027] 1. By setting cigarette slots of different diameters on the cigarette sorting roller, and then controlling the use of a certain type of cigarette slot while closing the others, the sampler can adapt to the feeding of cigarettes of different specifications.

[0028] 2. In the first scheme, the corresponding cigarette slot is sealed by filling the movable rod. In the second scheme, the corresponding cigarette slot is sealed by externally fitting an outer slot ring, so that only a single cigarette slot is retained for operation, and the adjustment flexibility is high. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of the sampler applicable to cigarette filter rods of different specifications in Embodiment 1 of this utility model.

[0030] Figure 2 This is a cross-sectional view of the sample feeder applicable to cigarette filter rods of different specifications in Embodiment 1 of this utility model.

[0031] Figure 3 This is a schematic diagram of the cigarette-dispensing roller structure of the sampler applicable to cigarette filter rods of different specifications in Embodiment 1 of this utility model.

[0032] Figure 4 This is a schematic diagram of the overall structure of the sampler applicable to cigarette filter rods of different specifications in Embodiment 2 of this utility model.

[0033] Figure 5 This is a cross-sectional view of the sample feeder applicable to cigarette filter rods of different specifications in Embodiment 2 of this utility model.

[0034] Figure 6 This is a schematic diagram of the cigarette-dispensing roller structure of the sampler applicable to cigarette filter rods of different specifications in Embodiment 2 of this utility model.

[0035] In the diagram: 1. Support; 2. Hopper; 3. Smoke separating roller; 4. Side guard plate; 5. Outer groove ring; 6. Positioning plate; 31. Smoke support groove; 32. Rotating shaft; 33. Movable rod; 34. Negative pressure channel; 41. Upper smoke inlet channel; 42. Lower smoke outlet channel; 51. Notch; 61. Positioning groove; 62. Photoelectric switch. Detailed Implementation

[0036] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0037] Example 1

[0038] like Figures 1-3As shown, a sampler suitable for cigarette filter rods of different specifications includes a support 1, a hopper 2, a cigarette separating roller 3, and a side guard plate 4.

[0039] The cigarette-distributing roller 3 has four axially extending cigarette grooves 31 distributed on its circumferential surface. The groove surface of each cigarette groove 31 is an arc surface, and the diameter of each cigarette groove 31 is different. The two ends of the cigarette-distributing roller 3 are rotatably engaged with the support 1. Specifically, the two ends of the cigarette-distributing roller 3 are rotating shafts 32, which can rotate with the support 1 through bearings or other structures. The external rotation is driven by a motor.

[0040] In this embodiment, the rotation angle between adjacent cigarette slots is 90°, and the diameters of the cigarette slots are arranged in ascending order. In other embodiments, the number of cigarette slots is set according to the predicted cigarette type.

[0041] The hopper 2 is fixed on the bracket 1 and located above the cigarette separating roller 3, and is used to store a large number of cigarettes or filter rods to be fed.

[0042] The cigarette slot 31 is filled with a removable movable rod 33. Specifically, the inner surface of the movable rod 33 is shaped to fit the groove surface of the cigarette slot 31, and the outer surface of the movable rod 33 is shaped to align with the outer circumferential surface of the cigarette separating roller 3. The cigarette separating roller 3 is provided with a negative pressure channel 34, the end of which is located in each cigarette slot 31. On the one hand, it is used to adsorb the cigarettes therein, and on the other hand, it is used to adsorb the movable rod 33 that is filled in.

[0043] The side guard plate 4 is an arc plate. The side guard plate 4 is fixed on the bracket 1 and wraps around the smoke distribution roller 3. The upper end of the side guard plate 4 is connected to the lower end outlet of the hopper to form an upper smoke inlet channel 41. The lower end of the side guard plate is provided with a lower smoke outlet channel 42 for cooperating with the smoke support groove 31.

[0044] In this embodiment, the side guard plate includes two plates, and the lower smoke outlet channel is a wide gap formed by splicing the two plates.

[0045] In other embodiments, the side guard plate can be designed as a single plate, and the lower smoke outlet can be set as a rectangular slot formed on the single plate.

[0046] Working principle explanation:

[0047] First, determine the cigarette slot 31 to be used based on the size of the cigarette filter rod that needs to be tested. Then, use the movable rod 33 to fill the remaining cigarette slots 31 so that only one cigarette slot 31 is left on the surface of the cigarette separating roller.

[0048] In use, a large number of cigarettes to be tested are placed into the hopper 2, and then the cigarette separating roller 3 is driven to rotate. As the cigarette separating roller 3 rotates, the single cigarette slot 31 that is retained passes through the lower outlet of the hopper. One cigarette or filter rod enters the cigarette slot 31 and is adsorbed by negative pressure. Then it is transferred as the cigarette separating roller 3 rotates. When it rotates to the lower smoke outlet channel 42, the negative pressure is canceled and the cigarette falls freely.

[0049] During the process of canceling the negative pressure, other movable rods are located at the top or in the blocking position of the side guard plate 4, and will not detach from the smoke separating roller 3. Then the negative pressure continues to be generated, which can prevent the movable rod 33 from falling off.

[0050] In other embodiments, the on / off relationship of the negative pressure channel can also be controlled so that the negative pressure of the working cigarette slot 31 can be cut off independently, while the other cigarette slots 31 with movable rods installed will not be cut off, thus ensuring the stability of the negative pressure.

[0051] Example 2

[0052] like Figures 4-6 As shown, a sampler suitable for cigarette filter rods of different specifications includes a support 1, a hopper 2, a cigarette separating roller 3, and an outer groove ring 5.

[0053] The cigarette-distributing roller 3 has four axially extending cigarette slots 31 distributed on its circumferential surface. The rotation angle between adjacent cigarette slots is 90°, and the diameters of the cigarette slots are arranged in ascending order. In other embodiments, the number of cigarette slots can be designed to be other numbers.

[0054] The surface of the cigarette slot 31 is an arc surface, and the diameter of each cigarette slot 31 is different. The two ends of the cigarette distribution roller 3 are rotatably engaged with the bracket 1.

[0055] The outer groove ring 5, under the action of its own deformation force, is a friction ring that is attached to the outer surface of the tobacco distribution roller 3. The purpose is to ensure that the outer groove ring 5 and the tobacco distribution roller 3 can be adjusted by applying external force to adjust the rotational position of the outer groove ring 5 relative to the tobacco distribution roller 3, while ensuring that the outer groove ring 5 and the tobacco distribution roller 3 are stable to each other and have no relative displacement without applying external force.

[0056] The tobacco distribution roller 3 is provided with a negative pressure channel 34, and the end of the negative pressure channel 34 is located in each tobacco slot 31.

[0057] The outer groove ring 5 is provided with a notch 51 that matches any cigarette groove, and the boundary of the notch 51 is greater than or equal to the boundary of the cigarette groove 31;

[0058] The hopper 2 is fixed on the bracket 1 and located above the smoke separating roller 3. The lower outlet of the hopper 2 is in contact with the outer surface of the outer groove ring 5.

[0059] In this embodiment, the outer groove ring 5 is made of plastic, which can achieve stability without loss and elasticity under slight deformation, and can stably cooperate with the smoke separating roller 3.

[0060] In this embodiment, positioning disks 6 are provided at both ends of the cigarette-distributing roller, and positioning grooves 61 are provided on the positioning disks 6. Photoelectric switches 62 are provided on the bracket 1 corresponding to the positioning grooves 61. The positioning grooves 61 on the positioning disks 6 at both ends are provided with rotation angles. In this embodiment, the rotation angle is the same as the angle between the cigarette slot 31 and the rotation angle is 90°. The photoelectric switches 62 at both ends are installed in the same position so as to obtain the rotation angle of the cigarette-distributing roller.

[0061] In other embodiments, a positioning disk, positioning groove, and photoelectric switch are provided on only one side, or the positioning disk, positioning groove, and photoelectric switch are provided on both sides in the same position, for obtaining the number of rotations of the tobacco separating roller.

[0062] Working principle explanation:

[0063] First, determine the cigarette slot 31 to be used based on the size of the cigarette filter rod to be tested. Then, adjust the angle of the outer slot ring 5 so that the notch 51 on the outer slot ring 5 is aligned with the position of the cigarette slot 31 to be used. Other cigarette slots 31 are covered by the outer slot ring 5, so that the entire cigarette separating roller 3 forms a roller structure with only one cigarette slot 31 with the cooperation of the outer slot ring 5.

[0064] In use, a large number of cigarettes to be tested are placed into the hopper 2, and then the cigarette separating roller 3 is driven to rotate. As the cigarette separating roller 3 rotates, the single cigarette slot 31 that is retained passes through the lower outlet of the hopper. One cigarette or filter rod enters the cigarette slot 31 and is adsorbed by negative pressure. Then it is transferred as the cigarette separating roller 3 rotates. When the cigarette separating roller 3 rotates to the bottom, the negative pressure is released, and the cigarette or filter rod falls under the action of gravity.

[0065] 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 sample feeder suitable for cigarette filter rods of different specifications, characterized in that: The device comprises a support, a hopper, a cigarette separating roller and a side guard plate. The circumferential surface of the cigarette separating roller is provided with at least two axially extending cigarette grooves, the groove surface of the cigarette grooves is a circular arc surface, the diameters of the cigarette grooves are different, and the two ends of the cigarette separating roller are rotationally matched with the support. The hopper is fixed to the support and located above the cigarette separating roller. The cigarette grooves are filled with movable rod bodies which can be removed. The side guard plate is a circular arc plate, which is fixed to the support and wrapped outside the cigarette separating roller. The upper end of the side guard plate is connected with the lower end outlet of the hopper to form an upper cigarette inlet channel, and the lower end of the side guard plate is provided with a lower cigarette outlet channel matched with the cigarette grooves.

2. The sample injector suitable for different gauge cigarette filter rods according to claim 1, characterized in that: The inner surface of the movable rod body is shaped to match the groove surface of the cigarette grooves, and the outer surface of the movable rod body is shaped to align with the outer circumferential surface of the cigarette separating roller.

3. The sampler suitable for different gauge cigarette filter rods according to claim 1 or 2, characterized in that: The cigarette separating roller is provided with a negative pressure channel, and the end of the negative pressure channel is located in each cigarette groove.

4. The sample injector suitable for different gauge cigarette filter rods according to claim 3, characterized in that: The side guard plate comprises a single plate or at least two plates, and the lower cigarette outlet channel is a rectangular long groove opened on the single plate or a wide gap formed by the two plates.

5. The sampler suitable for different gauge cigarette filter rods according to claim 1 or 2 or 4, characterized in that: The number of the cigarette grooves is four, the rotation angle between adjacent cigarette grooves is 90°, and the diameters of the cigarette grooves are sequentially arranged from small to large.

6. A sampler suitable for use with different gauges of cigarette filter rods, the sampler comprising: The device comprises a support, a hopper, a cigarette separating roller and an outer groove ring sleeve. The circumferential surface of the cigarette separating roller is provided with at least two axially extending cigarette grooves, the groove surface of the cigarette grooves is a circular arc surface, the diameters of the cigarette grooves are different, and the two ends of the cigarette separating roller are rotationally matched with the support. The outer groove ring sleeve is clamped on the outer surface of the cigarette separating roller under the action of its own deformation force, a notch matching any cigarette groove is arranged on the outer groove ring sleeve, and the boundary of the notch is greater than or equal to the boundary of the cigarette groove. The hopper is fixed to the support and located above the cigarette separating roller, and the lower end outlet of the hopper is in contact with the outer surface of the outer groove ring sleeve.

7. The sampler suitable for different gauge cigarette filter rods according to claim 6, characterized in that: One end or both ends of the cigarette separating roller are provided with positioning discs, the positioning discs are provided with positioning grooves, and the support is provided with photoelectric switches corresponding to the positioning grooves to obtain the rotation number of the cigarette separating roller.

8. The sampler suitable for different gauge cigarette filter rods according to claim 7, characterized in that: The positioning grooves on the positioning discs at the two ends are arranged at a rotation angle, and the installation positions of the photoelectric switches at the two ends are the same to obtain the rotation angle of the cigarette separating roller.

9. The sampler suitable for different gauge cigarette filter rods according to claim 8, characterized in that: The cigarette separating roller is provided with a negative pressure channel, and the end of the negative pressure channel is located in each cigarette groove.

10. The sampler suitable for cigarette filter rods of different gauges according to claim 6 or 7 or 8 or 9, characterized in that: The material of the outer groove ring sleeve is plastic, the number of the cigarette grooves is four, the rotation angle between adjacent cigarette grooves is 90°, and the diameters of the cigarette grooves are sequentially arranged from small to large.