A cigarette cigarette spectral acquisition device and its sample introduction apparatus

Abstract

This utility model relates to the field of solid-state spectral detection technology, specifically to a cigarette spectral acquisition device and its sample introduction apparatus. The sample introduction apparatus of the cigarette spectral acquisition device includes a guide rail and a pushing mechanism. The guide rail is provided with a sliding guide groove adapted to the cigarette. The pushing mechanism includes a pushing component that moves the cigarette along the sliding guide groove and a driving component that drives the pushing component. The pushing component has a delivery position during its travel to push the cigarette to a set acquisition position. The sample introduction apparatus includes a sensor connected to the control system and fixed relative to the guide rail. The sensor detects the position of the pushing component, causing the control system to control the driving component to move the pushing component to push the cigarette to the set acquisition position for the spectral acquisition device to collect the spectrum. This method of using a sensor in conjunction with the pushing mechanism to move the cigarette into position for accurate positioning is highly efficient, accurately positioned, and adaptable to automation requirements.

Description

Technical Field

[0001] This utility model relates to the field of solid matter spectral detection technology, specifically to a cigarette cigarette spectral acquisition device and its sample introduction device. Background Technology

[0002] With the continuous improvement of tobacco product quality control and intelligent manufacturing levels, the demand for testing various components of cigarettes, especially the cigarette itself, is gradually increasing. Traditional testing methods are mostly destructive, which are not only inefficient and time-consuming, but also cannot achieve online or continuous testing, making it difficult to meet the requirements of rapid, automated, and non-destructive testing in modern cigarette production. Near-infrared spectroscopy (NIRS) is a rapid, non-destructive, and non-contact analytical testing technology, widely used in component detection and quality control in industries such as agriculture, food, medicine, and tobacco. Especially in the tobacco industry, NIRS is used for online or offline detection of components such as moisture, nicotine, and sugar in products such as tobacco leaves, cigarettes, and filter rods.

[0003] The optical fiber of the spectral acquisition device is aligned with the cigarette stick to collect spectral data. During the acquisition, it is usually necessary to collect data at different positions along the length of the cigarette stick. Therefore, it is required to ensure the position of the cigarette stick relative to the optical fiber. Currently, the position of the cigarette stick is determined by manual measurement, which is inefficient, prone to inaccurate positioning, and cannot meet the requirements of automation, nor can it meet the higher requirements of modern tobacco industry for product quality control. Utility Model Content

[0004] The purpose of this utility model is to provide a sample introduction device for a cigarette spectral acquisition device, so as to solve the problem of low efficiency in the current method of determining the position of cigarettes during cigarette spectral acquisition; the purpose of this utility model is also to provide a cigarette spectral acquisition device to solve the above-mentioned problems.

[0005] The technical solution of the sample introduction device of the cigarette cigarette spectral acquisition equipment of this utility model is as follows: A sample feeding device for a cigarette spectral acquisition device includes a guide rail and a pushing mechanism. The guide rail is provided with a sliding guide groove adapted to the cigarette. The pushing mechanism includes a pushing component for pushing the cigarette along the sliding guide groove and a driving component for driving the pushing component. The pushing component has a delivery position for pushing the cigarette to a set acquisition position during its travel. The sample feeding device includes a sensor for signal connection to a control system and fixed relative to the guide rail. The sensor is used to detect the position of the pushing component so that the control system controls the driving component to drive the pushing component to push the cigarette to the set acquisition position for the spectral acquisition device to acquire the spectrum.

[0006] Beneficial Effects: This utility model innovatively provides a sample feeding device for a cigarette spectral acquisition equipment. After the cigarette enters the sliding guide groove on the guide rail, the control system controls the drive component to work. The drive component drives the pushing component to move along the extension direction of the guide rail. The pushing component moves and pushes the cigarette in the sliding guide groove, so that the cigarette moves along the sliding guide groove from the sample feeding position when it enters the sliding guide groove. The position of the pushing component is detected by the sensor and a signal is sent to the control system. The current position can be known through the sensor signal, and the operation of the pushing mechanism can be controlled by the control system. When the set position is reached, the control system can control the drive component to stop. At this time, the pushing component moves to the delivery position, and the cigarette reaches the set acquisition position. The acquisition position corresponds to the spectral acquisition device, which can perform spectral acquisition on the cigarette at the acquisition position. This method of using sensors in conjunction with the pushing mechanism to move the cigarette into position to achieve position determination is highly efficient, accurate in positioning, and meets the requirements of automation.

[0007] Furthermore, the sample introduction device includes a conveying assembly having a sample introduction channel for guiding the cigarette sticks into the sliding guide groove in a flat position.

[0008] Furthermore, the conveying assembly includes a cigarette groove wheel and a guide arc surface located on the radial side of the cigarette groove wheel and adapted to the cigarette groove wheel. The cigarette groove wheel is provided with a receiving groove for the cigarette to enter in a flat position. The extension direction of the receiving groove is consistent with the axial direction of the cigarette groove wheel. The cigarette groove wheel and the guide arc surface form the sample feeding channel. During the control of the rotation of the cigarette groove wheel, the cigarette entering the receiving groove is kept in the receiving groove under the restriction of the guide arc surface. When the cigarette groove wheel rotates to the point that the receiving groove is separated from the lower edge of the guide arc surface, the cigarette falls to enter the sliding guide groove.

[0009] Furthermore, the conveying assembly also includes a guide wheel located upstream of the cigarette groove wheel on the cigarette conveying path and a guide slope located upstream of the guide wheel. The guide wheel has a protruding part that protrudes from the guide slope. The guide slope allows the cigarette to move from top to bottom to the protruding part of the guide wheel. During the control of the rotation of the guide wheel, the protruding part of the guide wheel guides the cigarette to move horizontally over the protruding part and onto the cigarette groove wheel.

[0010] Furthermore, the cigarette groove wheel includes two end groove wheels and a middle groove wheel located between the two end groove wheels. Grooves are provided on the outer circumferential surfaces of both the end groove wheels and the middle groove wheel. The number of grooves on the middle groove wheel is less than the number of grooves on the end groove wheels. The grooves on the middle groove wheel and the axially corresponding grooves on the two end groove wheels together form the receiving groove.

[0011] Furthermore, the delivery assembly includes a sample feed frame, on which a cigarette slot wheel is rotatably mounted. The sample feed frame has an upward-facing sample feed end and a guide sidewall extending from the sample feed end toward the cigarette slot wheel. The guide sidewall is used to guide the cigarette to move toward the sample feed channel. The side of the sample feed frame opposite to the guide sidewall is open.

[0012] Furthermore, the drive assembly includes a lead screw and a motor for driving the lead screw to rotate, and the push assembly is threadedly connected to the lead screw and moves linearly along the extension direction of the guide rail when the lead screw rotates.

[0013] Furthermore, the lead screw is located on the horizontal side of the guide rail, and the pushing assembly includes a slide and a push rod. The slide is threadedly connected to the lead screw, and one end of the push rod is fixed to the slide and the other end extends out of the guide rail and is provided with a push head that extends into the sliding guide groove. The push head is used to push the end face of the cigarette stick to move it.

[0014] Furthermore, the sliding guide groove extends through the front and rear directions. The rear end of the sliding guide groove is provided with a sample feeding area for cigarette sticks to enter, and the front end is provided with a collection area for cigarette sticks to be in the collection position. The pushing component has a starting position located behind the sample feeding area during its movement stroke to push the cigarette stick forward to the collection position.

[0015] The technical solution of this utility model's cigarette cigarette spectral acquisition device is as follows: A cigarette spectral acquisition device includes a spectral acquisition unit and a sample introduction unit. The sample introduction unit includes a guide rail and a pushing mechanism. The guide rail is provided with a sliding guide groove adapted to the cigarette. The pushing mechanism includes a pushing component for pushing the cigarette along the sliding guide groove and a driving component for driving the pushing component. The pushing component has a delivery position for pushing the cigarette to a set acquisition position during its travel. The sample introduction device includes a sensor for signal connection to a control system and fixed relative to the guide rail. The sensor is used to detect the position of the pushing component so that the control system controls the driving component to drive the pushing component to push the cigarette to the set acquisition position for the spectral acquisition unit to acquire the spectrum.

[0016] Beneficial Effects: This utility model innovatively provides a sample feeding device for a cigarette spectral acquisition equipment. After the cigarette enters the sliding guide groove on the guide rail, the control system controls the drive component to work. The drive component drives the pushing component to move along the extension direction of the guide rail. The pushing component moves and pushes the cigarette in the sliding guide groove, so that the cigarette moves along the sliding guide groove from the sample feeding position when it enters the sliding guide groove. The position of the pushing component is detected by the sensor and a signal is sent to the control system. The current position can be known through the sensor signal, and the operation of the pushing mechanism can be controlled by the control system. When the set position is reached, the control system can control the drive component to stop. At this time, the pushing component moves to the delivery position, and the cigarette reaches the set acquisition position. The acquisition position corresponds to the spectral acquisition device, which can perform spectral acquisition on the cigarette at the acquisition position. This method of using sensors in conjunction with the pushing mechanism to move the cigarette into position to achieve position determination is highly efficient, accurate in positioning, and meets the requirements of automation.

[0017] Furthermore, the sample introduction device includes a conveying assembly having a sample introduction channel for guiding the cigarette sticks into the sliding guide groove in a flat position.

[0018] Furthermore, the conveying assembly includes a cigarette groove wheel and a guide arc surface located on the radial side of the cigarette groove wheel and adapted to the cigarette groove wheel. The cigarette groove wheel is provided with a receiving groove for the cigarette to enter in a flat position. The extension direction of the receiving groove is consistent with the axial direction of the cigarette groove wheel. The cigarette groove wheel and the guide arc surface form the sample feeding channel. During the control of the rotation of the cigarette groove wheel, the cigarette entering the receiving groove is kept in the receiving groove under the restriction of the guide arc surface. When the cigarette groove wheel rotates to the point that the receiving groove is separated from the lower edge of the guide arc surface, the cigarette falls to enter the sliding guide groove.

[0019] Furthermore, the conveying assembly also includes a guide wheel located upstream of the cigarette groove wheel on the cigarette conveying path and a guide slope located upstream of the guide wheel. The guide wheel has a protruding part that protrudes from the guide slope. The guide slope allows the cigarette to move from top to bottom to the protruding part of the guide wheel. During the control of the rotation of the guide wheel, the protruding part of the guide wheel guides the cigarette to move horizontally over the protruding part and onto the cigarette groove wheel.

[0020] Furthermore, the cigarette groove wheel includes two end groove wheels and a middle groove wheel located between the two end groove wheels. Grooves are provided on the outer circumferential surfaces of both the end groove wheels and the middle groove wheel. The number of grooves on the middle groove wheel is less than the number of grooves on the end groove wheels. The grooves on the middle groove wheel and the axially corresponding grooves on the two end groove wheels together form the receiving groove.

[0021] Furthermore, the delivery assembly includes a sample feed frame, on which a cigarette slot wheel is rotatably mounted. The sample feed frame has an upward-facing sample feed end and a guide sidewall extending from the sample feed end toward the cigarette slot wheel. The guide sidewall is used to guide the cigarette to move toward the sample feed channel. The side of the sample feed frame opposite to the guide sidewall is open.

[0022] Furthermore, the drive assembly includes a lead screw and a motor for driving the lead screw to rotate, and the push assembly is threadedly connected to the lead screw and moves linearly along the extension direction of the guide rail when the lead screw rotates.

[0023] Furthermore, the lead screw is located on the horizontal side of the guide rail, and the pushing assembly includes a slide and a push rod. The slide is threadedly connected to the lead screw, and one end of the push rod is fixed to the slide and the other end extends out of the guide rail and is provided with a push head that extends into the sliding guide groove. The push head is used to push the end face of the cigarette stick to move it.

[0024] Furthermore, the sliding guide groove extends through the front and rear directions. The rear end of the sliding guide groove is provided with a sample feeding area for cigarette sticks to enter, and the front end is provided with a collection area for cigarette sticks to be in the collection position. The pushing component has a starting position located behind the sample feeding area during its movement stroke to push the cigarette stick forward to the collection position. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of an embodiment of the cigarette cigarette spectral acquisition device of this utility model; Figure 2 for Figure 1 A schematic diagram with the sample holder and optical fiber removed.

[0026] In the diagram: 1. First motor; 11. Guide wheel; 2. Second motor; 21. Motor bracket; 22. End grooved wheel; 23. Middle grooved wheel; 24. Guide arc surface; 3. Third motor; 31. Photoelectric sensor; 32. Lead screw; 33. Sliding guide groove; 34. Slide seat; 35. Push rod; 36. Fixing frame; 4. Sample feed frame; 5. Optical fiber; 6. Cigarette stick. Detailed Implementation

[0027] The basic concept of this utility model of cigarette spectral acquisition device is to use a ranging sensor in conjunction with a pushing mechanism to move the cigarette into position so as to determine the position of the relative spectral acquisition device. It has high positioning efficiency, accurate positioning, and meets the requirements of automation.

[0028] The technical solution of this utility model will be described in detail below with reference to specific embodiments.

[0029] Embodiments of the cigarette cigarette spectral acquisition device of this utility model: Combination Figure 1 , Figure 2The cigarette spectral acquisition device includes a spectral acquisition device and a sample introduction device. The sample introduction device is used to transport the cigarette sample 6 in a set posture to a set acquisition position. The spectral acquisition device includes an optical fiber 5, with the tip of the optical fiber 5 facing the cigarette 6 at the acquisition position, for acquiring near-infrared spectral information of the corresponding position of the cigarette.

[0030] The sample introduction device includes a guide rail and a pushing mechanism. The guide rail is provided with a sliding guide groove 33 adapted to the cigarette stick 6. The pushing mechanism includes a pushing component for pushing the cigarette stick 6 to move along the sliding guide groove 33 and a driving component for driving the pushing component to move. The pushing component has a delivery position for pushing the cigarette stick 6 to the set collection position during its movement stroke. The sample introduction device includes a sensor for signal connection with the control system and fixed relative to the guide rail. The sensor is used to detect the position of the pushing component so that the control system can control the driving component to drive the pushing component to push the cigarette stick 6 to the set collection position.

[0031] After the cigarette stick 6 enters the sliding guide groove 33 on the guide rail, the control system controls the drive component to operate. The drive component drives the push component to move along the extension direction of the guide rail. The push component moves and pushes the cigarette stick 6 in the sliding guide groove 33, causing the cigarette stick 6 to move along the sliding guide groove 33 from the sample entry position. The sensor detects its position relative to the push component and sends a signal to the control system. The current position can be determined by the sensor signal, and the control system can control the operation of the pushing mechanism. When the set position is reached, the control system can control the drive component to stop. At this time, the push component moves to the delivery position, and the cigarette stick 6 reaches the set collection position. The collection position corresponds to the optical fiber 5 of the spectral acquisition device, which can collect the spectrum of the cigarette stick 6 at the collection position. This method of using sensors in conjunction with the pushing mechanism to move the cigarette stick into position to achieve position determination is highly efficient, accurate in positioning, and adaptable to the requirements of automation.

[0032] The guide rail of the sample introduction device is mounted on the fixed frame 36, extending in the front-to-back direction, and the corresponding sliding guide groove 33 extends in the front-to-back direction as well. The bottom of the fixed frame 36 is provided with multiple feet spaced apart in the front-to-back direction for fixing to the corresponding base. The opening of the sliding guide groove 33 faces upwards, and the bottom of the groove is an arc surface to accommodate the shape of the cigarette. The groove width is adapted to the diameter of the cigarette, allowing the cigarette 6 to enter the sliding guide groove 33 from top to bottom. The sliding guide groove 33 guides and limits the movement of the cigarette 6. The cigarette 6 lies flat in the sliding guide groove 33, i.e., the cigarette is in a horizontal, horizontal position.

[0033] The drive assembly is mounted on the fixed frame 36. The drive assembly includes a lead screw 32 and a motor for rotating the lead screw 32. The lead screw 32 is rotatably mounted on the fixed frame 36. The motor for rotating the lead screw 32 is a third motor 3, which is mounted at the rear end of the fixed frame 36. The lead screw 32 extends in the front-to-back direction. The push assembly is threadedly connected to the lead screw 32 and moves linearly along the extension direction of the guide rail when the lead screw 32 rotates, thereby pushing the cigarette stick 6 forward. The lead screw 32 and the push assembly form a screw-nut mechanism. Using a motor in conjunction with the screw-nut mechanism for pushing facilitates control and ensures positional accuracy. In other embodiments, an electric push rod or a cylinder can also be used to drive the push assembly to move linearly.

[0034] The lead screw 32 is located on the horizontal side of the guide rail, i.e., the left-right side, and is arranged parallel to the guide rail. The pushing assembly includes a slide 34 and a push rod 35. The slide 34 has a threaded hole that runs through the front and rear to be threadedly connected to the lead screw 32. The upper surface of the fixing bracket 36 has a mating structure that guides and engages with the slide 34 to prevent the slide 34 from rotating, so that the slide 34 can move linearly when the third motor 3 drives the lead screw 32 to rotate. One end of the push rod 35 is fixed to the slide 34, and the other end extends out of the guide rail and has a push head that extends into the sliding guide groove 33. The extension direction of the push rod 35 is the left-right direction. The push head at the end of the push rod 35 protrudes downward and extends into the sliding guide groove 33. The push head can move within the sliding guide groove 33 and is used to push the rear end face of the cigarette stick 6 to move it forward. This pushing assembly has a compact structure and saves space. In other embodiments, if space permits, the lead screw can be positioned above the sliding guide groove, and the push rod can be suspended downwards and directly inserted into the sliding guide groove.

[0035] The sliding guide 33 extends through the entire length of the device. Its rear end has a sample entry area for the cigarette stick 6, and its front end has a collection area for the cigarette stick 6 to be in the collection position. The pushing component has a starting position located behind the sample entry area during its travel. When the cigarette stick 6 enters the sample entry area of ​​the sliding guide 33, it is in the sample entry position, the pushing component is in the starting position, and the push rod 35 is behind the cigarette stick. When the third motor 3 operates, the push rod 35 can push the cigarette stick 6 forward to the collection position. An optical fiber 5 is arranged above the collection area at the front end of the sliding guide 33, corresponding to the cigarette stick surface, and is used to collect near-infrared spectral information from different positions on the cigarette stick. If multiple positions need to be collected, the device can push the cigarette stick forward sequentially to the corresponding position. After collection, the cigarette stick can be pushed away from the sample entry device by the push rod 35 to proceed to the next process. After one cigarette stick collection is completed, the driving component can drive the pushing component back to the starting position.

[0036] The sensor used for position detection is a photoelectric sensor 31, which is fixedly mounted on the mounting bracket 36. Its probe extends into the sliding guide groove 33, the depth of which is greater than the diameter of the cigarette. The sensor probe does not affect the movement of the cigarette and the push rod 35, and can detect the position of the slide block 34 or the push rod 35, thereby achieving precise control of the pushing stroke. In other embodiments, a distance sensor or a displacement sensor can also be used to measure the distance or displacement of the push component relative to it to determine the current position of the push component.

[0037] To facilitate automated sample introduction, the sample introduction device also includes a conveying component with a sample introduction channel for guiding the cigarette sticks 6 into the sliding guide groove 33 in a flat position. In other embodiments, the conveying component may be omitted, and the cigarette sticks may be directly placed into the sliding guide groove, either manually or by a robotic arm.

[0038] The conveying assembly includes a sample feed frame 4, a cigarette slotted wheel, a second motor 2, and a guide seat. The sample feed frame 4 includes an upper main frame and a lower fixing plate. The fixing plate is used to support and fix the sample feed frame to the corresponding base, ensuring the stability of the device during operation. The cigarette slotted wheel is rotatably mounted on the main frame of the sample feed frame 4, with its axis pointing forward and backward. The cigarette slotted wheel is located above the sliding guide groove 33. The second motor 2 is fixed to the main frame of the sample feed frame 4 via a motor bracket 21 and is used to drive the cigarette slotted wheel to rotate. The second motor 2 is connected to the control system. The sample feed frame 4 can guide cigarettes into the internal sample feeding channel of the device. As the cigarette slotted wheel rotates, it clamps the cigarettes and conveys them along the rotation direction.

[0039] The cigarette slotting wheel includes two end slotting wheels 22 and a central slotting wheel 23 located between the two end slotting wheels 22. All slotting wheels are coaxially arranged and rotate synchronously. Grooves are provided on the outer circumferential surfaces of both the end slotting wheels 22 and the central slotting wheel 23, and these grooves are axially continuous. Multiple grooves are provided on both the end slotting wheels 22 and the central slotting wheel 23 along the circumferential direction. The number of grooves on the central slotting wheel 23 is less than the number of grooves on the end slotting wheels 22. The grooves on the central slotting wheel 23, together with the axially corresponding grooves on the two end slotting wheels 22, form a receiving slot for the cigarette to enter and be conveyed. Each groove on the central slotting wheel 23 has a corresponding groove on one of the two end slotting wheels 22, and the grooves are of the same size to ensure the size of the receiving slot is adapted to the cigarette specifications. Grooves on the two end slotting wheels 22 that do not form receiving slots are blocked axially by the central slotting wheel 23. Multiple receiving slots are formed, and adjacent receiving slots have a circumferential distance to select cigarettes according to a set cycle, allowing the cigarettes to be conveyed one by one, satisfying the cigarette collection cycle. In other embodiments, the cigarette holder groove wheel can also be an integral structure, with only individual receiving slots spaced at certain intervals.

[0040] The sample feed rack 4 has an upward-facing feed end and a guide sidewall extending from the feed end towards the cigarette groove wheel. The guide sidewall guides the cigarette 6 to move into the sample feed channel. One side of the sample feed rack 4 opposite to the guide sidewall is open. The guide sidewall has a downward-sloping guide ramp. After the cigarette enters from the feed end, it can roll downwards along the guide ramp. The guide ramp is located on one side of the cigarette groove wheel axis in the left-right direction, while the other side is open for easy observation and placement of the cigarette. In other embodiments, the sample feed rack can also be configured as an upward-facing hopper structure.

[0041] The guide seat is provided with a guide arc surface 24. The guide seat is located on the radial side of the cigarette groove wheel. The guide arc surface 24 is opposite to the cigarette groove wheel. The axis of the cylindrical surface where the guide arc surface 24 is located is in the front-back direction. Its axial length covers the two end groove wheels 22 and the middle groove wheel 23 located between the two end groove wheels 22. The cigarette stick 6 enters the receiving groove of the cigarette groove wheel from the top in a flat position. The extension direction of the receiving groove is consistent with the axis of the cigarette groove wheel. A sample introduction channel is formed between the cigarette groove wheel and the guide arc surface 24. During the control of the rotation of the cigarette groove wheel, the cigarette stick 6 entering the receiving groove is kept in the receiving groove under the restriction of the guide arc surface 24. When the cigarette groove wheel rotates to the point that the receiving groove is separated from the lower edge of the guide arc surface 24, the cigarette stick 6 falls to enter the sliding guide groove 33.

[0042] The conveying assembly also includes a first motor 1 and a guide wheel 11 located upstream of the cigarette slot wheel on the cigarette conveying path 6. The guide slope of the sample feeding frame 4 is located upstream of the guide wheel 11. The first motor 1 is mounted on the sample feeding frame 4 and connected to the guide wheel 11 via a coupling or transmission structure. The first motor 1 drives the guide wheel 11 to rotate, pushing the cigarette onto the cigarette slot wheel. The first motor 1 is connected to the control system. All motors are installed at the rear end of the device, and the control system controls the cooperation of each motor according to signals.

[0043] The guide wheel 11 has a protruding part that protrudes from the guide slope. The guide slope allows the cigarette stick 6 to move from top to bottom to the protruding part of the guide wheel 11. During the rotation of the guide wheel 11, the protruding part of the guide wheel 11 guides the cigarette stick 6 to move over the protruding part in a flat position and onto the cigarette slot wheel.

[0044] The cigarette enters from the inlet end of the sample feed rack 4 and rolls down the guide slope from top to bottom on the horizontal side. When it rolls down to the guide wheel 11 and hits the protruding part of the guide wheel 11, the cigarette is obstructed. As the guide wheel 11 rotates, the direction of rotation is sufficient to generate a force that continues to roll the cigarette downwards, guiding the cigarette to a flat position. After the cigarette passes the protruding part of the guide wheel 11, it reaches the cigarette groove wheel. When the cigarette groove wheel has not rotated to the position where the receiving groove connects with the guide wheel 11, the cigarette is blocked by the outer circumference of the middle groove wheel 23 and cannot be conveyed downwards. When the cigarette groove wheel rotates to the position where the receiving groove connects with the guide wheel 11, the cigarette automatically enters the receiving groove on the cigarette groove wheel. When each receiving groove is reached, the cigarette will enter. The cigarette slot wheel rotates, causing the cigarette in its receiving slot to continue to be conveyed downwards. As the cigarette slot wheel rotates, the receiving slot changes position to correspond to the guide arc surface 24, moving from the upper edge to the lower edge of the guide arc surface 24. Constrained by the guide arc surface 24, the cigarette remains within the receiving slot and does not fall out. When the receiving slot changes to be aligned with the lower edge of the guide arc surface 24, i.e., directly above the sliding guide 33, the cigarette falls and lands flat in the sliding guide 33, where it is then moved to a set position by the pushing mechanism.

[0045] The cigarette is introduced into the guide wheel 11 area via the sample feed rack 4. The first motor 1 starts, driving the guide wheel 11 to rotate and pushing the cigarette onto the cigarette slot wheel. The second motor 2 starts, driving the cigarette slot wheel to rotate. The cigarette rotates under the clamping of the slot wheel and is conveyed to the sliding guide groove 33. After the cigarette reaches the sliding guide groove 33, the third motor 3 starts, driving the lead screw 32 to rotate, causing the slide block 34 to move along the extension direction of the sliding guide groove 33, thereby driving the push rod 35 to push the cigarette forward. The photoelectric sensor 31 monitors the position of the slide block 34 or the push rod 35 in real time. When the cigarette reaches the preset spectral acquisition position, the third motor 3 stops running. After the cigarette is positioned, the optical fiber 5 begins to acquire near-infrared spectral data at different positions of the cigarette, which can realize multi-point or full-segment detection. After the acquisition is completed, the third motor 3 rotates in the opposite direction, causing the push rod 35 to return to the initial position. The cigarette can be removed or enter the next processing stage, ready for the next cigarette to be sampled and acquired.

[0046] The first, second, and third motors are all stepper motors or servo motors for precise control. The fiber optic cable is adjustable to enable multi-point spectral acquisition of different regions of the cigarette. A photoelectric sensor connected to the control system provides feedback control of the push rod's stop position, ensuring the cigarette is accurately positioned within the fiber optic acquisition area. The sample holder's mounting plate has multiple positioning holes for adjusting the installation position of each component. This equipment can be used in conjunction with a tobacco product quality inspection system to achieve automated near-infrared spectral analysis.

[0047] This equipment features a rational structure and clearly defined modules, enabling full automation of the cigarette sample introduction, conveying, positioning, and acquisition process, thus improving detection efficiency. Multi-motor collaborative control ensures the synchronization and stability of the sample introduction, conveying, and acquisition processes. Precise photoelectric sensing positioning prevents cigarette misalignment and improves the reliability of spectral acquisition data. Fiber optic acquisition gathers information from multiple points, adapting to different detection needs and enhancing detection accuracy. Its strong adaptability allows for integration with existing tobacco detection systems, facilitating industrial application. With its compact structure, ease of operation, high degree of automation, and high acquisition efficiency, it is suitable for the sample introduction and acquisition stages of near-infrared cigarette detection systems and is well-suited for industrial applications such as cigarette production and quality inspection, demonstrating promising industrial application prospects.

[0048] An embodiment of the sample introduction device of the cigarette cigarette spectral acquisition equipment of this utility model: The sample introduction device of the cigarette spectral acquisition device in this embodiment is the same as the sample introduction device in the above embodiment, and will not be described again here.

[0049] Finally, it should be noted that the above description is only a preferred embodiment of this utility model and is not intended to limit this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments without creative effort, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A sample introduction device for a cigarette cigarette spectral acquisition equipment, characterized in that, The sample introduction device includes a guide rail and a pushing mechanism. The guide rail is provided with a sliding guide groove adapted to the cigarette stick. The pushing mechanism includes a pushing component for pushing the cigarette stick along the sliding guide groove and a driving component for driving the pushing component to move. The pushing component has a delivery position for pushing the cigarette stick to the set collection position during its movement stroke. The sample introduction device includes a sensor for signal connection with the control system and fixed relative to the guide rail. The sensor is used to detect the position of the pushing component so that the control system controls the driving component to drive the pushing component to push the cigarette stick to the set collection position for the spectral acquisition device to collect the spectrum.

2. The sample introduction device of the cigarette cigarette spectral acquisition equipment according to claim 1, characterized in that, The sample introduction device includes a conveying assembly having a sample introduction channel for guiding cigarette sticks into a sliding guide groove in a flat position.

3. The sample introduction device of the cigarette cigarette spectral acquisition equipment according to claim 2, characterized in that, The conveying assembly includes a cigarette groove wheel and a guide arc surface located on the radial side of the cigarette groove wheel and adapted to the cigarette groove wheel. The cigarette groove wheel is provided with a receiving groove for the cigarette to enter in a flat position. The extension direction of the receiving groove is consistent with the axial direction of the cigarette groove wheel. The cigarette groove wheel and the guide arc surface form the sample feeding channel. During the control of the rotation of the cigarette groove wheel, the cigarette entering the receiving groove is kept in the receiving groove under the restriction of the guide arc surface. When the cigarette groove wheel rotates to the point that the receiving groove is separated from the lower edge of the guide arc surface, the cigarette falls to enter the sliding guide groove.

4. The sample introduction device of the cigarette cigarette spectral acquisition equipment according to claim 3, characterized in that, The conveying assembly also includes a guide wheel located upstream of the cigarette groove wheel on the cigarette conveying path and a guide slope located upstream of the guide wheel. The guide wheel has a protruding part that protrudes from the guide slope. The guide slope allows the cigarette to move from top to bottom to the protruding part of the guide wheel. During the control of the rotation of the guide wheel, the protruding part of the guide wheel guides the cigarette to move horizontally over the protruding part and onto the cigarette groove wheel.

5. The sample introduction device of the cigarette cigarette spectral acquisition equipment according to claim 3 or 4, characterized in that, The cigarette holder groove wheel includes two end groove wheels and a middle groove wheel located between the two end groove wheels. Grooves are provided on the outer circumferential surfaces of both the end groove wheels and the middle groove wheel. The number of grooves on the middle groove wheel is less than the number of grooves on the end groove wheels. The grooves on the middle groove wheel and the axially corresponding grooves on the two end groove wheels together form the receiving groove.

6. The sample introduction device of the cigarette cigarette spectral acquisition equipment according to claim 3 or 4, characterized in that, The delivery assembly includes a sample feed frame, on which a cigarette slot wheel is rotatably mounted. The sample feed frame has an upward-facing sample feed end and a guide sidewall extending from the sample feed end toward the cigarette slot wheel. The guide sidewall is used to guide the cigarette to move toward the sample feed channel. The side of the sample feed frame opposite to the guide sidewall is open.

7. The sample introduction device of the cigarette cigarette spectral acquisition equipment according to any one of claims 1-4, characterized in that, The drive assembly includes a lead screw and a motor for driving the lead screw to rotate. The push assembly is threaded onto the lead screw and moves linearly along the extension direction of the guide rail when the lead screw rotates.

8. The sample introduction device of the cigarette cigarette spectral acquisition equipment according to claim 7, characterized in that, The lead screw is located on the horizontal side of the guide rail. The pushing assembly includes a slide and a push rod. The slide is threaded onto the lead screw. One end of the push rod is fixed to the slide, and the other end extends out of the guide rail and is provided with a push head that extends into the sliding guide groove. The push head is used to push the end face of the cigarette stick to move it.

9. The sample introduction device of the cigarette cigarette spectral acquisition equipment according to any one of claims 1-4, characterized in that, The sliding guide groove runs through the front and rear directions. The rear end of the sliding guide groove is provided with a sample feeding area for cigarette sticks to enter, and the front end is provided with a collection area for cigarette sticks to be in the collection position. The pushing component has a starting position located behind the sample feeding area during its movement stroke to push the cigarette stick forward to the collection position.

10. A cigarette cigarette spectral acquisition device, characterized in that, It includes a spectral acquisition device and a sample introduction device for the cigarette spectral acquisition equipment as described in any one of claims 1-9.

Images