Four-shred blending moisture on-line detection device

Abstract

The utility model discloses a four-filament blending moisture online detection device which comprises a four-filament blending line, a linear guide rail mechanism, an infrared moisture meter and a material taking mechanism, the four-wire blending line comprises four vertical blanking channels, steering conveying belts arranged below the blanking channels and an assembly conveying belt arranged at the tail ends of the steering conveying belts; the linear guide rail mechanism is arranged above the four-wire blending wire, the infrared moisture meter is mounted on a movable frame of the linear guide rail mechanism, and a detection probe of the infrared moisture meter faces downwards; the material taking mechanism comprises a linear sliding table in linear reciprocating motion, a long arm installed on the linear sliding table and a material taking drawer installed at the far end of the long arm. The material taking drawer is designed on one side of the material falling channel, a small amount of tobacco materials can be obtained every time, the steam amount of the small amount of tobacco materials is small, meanwhile, cooling can be conducted within a short time, steam interference can be avoided to the maximum extent through detection at the moment, and accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tobacco shred production lines, and more specifically to an online detection device for moisture content in four-shred blending. Background Art

[0002] On the silk production line, four-thread blending is an important part of the silk-making process. Four-thread blending generally refers to blending stem shreds, expanded leaf shreds, recycled shreds and thin tobacco shreds according to the proportions set for the product. It has a direct impact on the accuracy of process control, the rationality of the silk-making process flow settings and the advancement of program control.

[0003] According to the cigarette making process specifications, the accuracy of the four-shred blending ratio directly affects the intrinsic quality and style stability of the cigarette, and moisture is one of the important process indicators of tobacco and its products, and plays an important role in tobacco production and processing.

[0004] At present, there is no moisture detection device in the silk mixing and flavoring process, and the moisture setting of the silk drying cannot be adjusted according to the moisture content of the blended materials. When the moisture content of the blended materials exceeds the standard, it is impossible to inform the central control room in advance to make adjustments and intervene, thereby stabilizing the moisture content of the silk mixing and flavoring.

[0005] Moisture meter is a commonly used moisture measuring device in the tobacco industry. Its principle is to use infrared to measure the moisture in tobacco online.

[0006] However, several raw materials in the four-wire blending production line undergo different degrees of pre-treatment, and some will produce a certain amount of steam due to heat, which interferes with the moisture determination based on the infrared principle. In addition, the price of the moisture meter is relatively high, reaching hundreds of thousands per unit, and the modification cost is relatively high.

[0007] Based on the above reasons, in order to enable the moisture meter to be used online and to detect the moisture of online raw materials in real time, it is necessary to design an online moisture detection device that can eliminate the interference of steam rising and keep the cost at a reasonable level. Utility Model Content

[0008] One purpose of the present invention is to provide a new technical solution for an on-line detection device for moisture content in four-wire blending, so as to effectively solve the problems raised in the above-mentioned background technology.

[0009] According to a first aspect of the present invention, there is provided an online detection device for moisture content in four-wire blending, comprising a four-wire blending line, a linear guide mechanism, an infrared moisture meter, and a material taking mechanism;

[0010] The four-wire blending line includes four vertical blanking channels, a turning conveyor belt arranged under each blanking channel, and a merging conveyor belt arranged at the end of the turning conveyor belt;

[0011] The linear guide mechanism is arranged above the four-wire blending line, and the infrared moisture meter is installed on the movable frame of the linear guide mechanism, with its detection probe facing downward;

[0012] The material picking mechanism includes a linear slide that reciprocates linearly, a long arm mounted on the linear slide, and a material picking drawer mounted at the far end of the long arm. The first end point of the material picking drawer is to move to the bottom of the material dropping channel to pick up the material, and the second end point of the material picking drawer is to move away from the bottom of the material dropping channel for detection.

[0013] The long arm can be swung downward at a certain angle to tilt the material taking bin so as to return the taken material to the diverting conveyor belt.

[0014] Optionally, according to the four-wire blending moisture online detection device described in the utility model, the linear guide mechanism can drive the infrared moisture meter to switch between the installation positions of each material taking mechanism to obtain the moisture content of each raw material.

[0015] Optionally, according to the four-wire blending moisture online detection device described in the utility model, the linear guide mechanism also includes a lifting mechanism, and the movable frame of the linear guide mechanism is installed at the far end of the lifting mechanism to drive the lifting of the infrared moisture meter.

[0016] Optionally, according to the four-wire blending moisture online detection device described in the utility model, the long arm includes a main arm and a sub-arm, the main arm and the sub-arm are connected by a movable joint, the sub-arm can rotate around the main arm with the movable joint as the center, and the material bin is arranged on the sub-arm.

[0017] Optionally, according to the four-wire blending moisture online detection device described in the utility model, the movable joint includes a rotating shaft, a half gear fixed coaxially with the rotating shaft, a driving gear meshing with the half gear and a micro motor serving as power, the micro motor and the driving gear are installed in the main arm, the half gear is fixedly connected to the sub-arm, and the micro motor drives the sub-arm to rotate around the rotating shaft through the driving gear and the half gear, thereby realizing the swing of the sub-arm.

[0018] Optionally, according to the four-wire blending moisture online detection device described in the utility model, the linear slide is an electric linear drive mechanism composed of a motor and a screw mechanism.

[0019] Optionally, according to the four-wire blending moisture online detection device described in the utility model, the material drawer is a drawer structure with an open front end and side walls on the left, right sides and rear end.

[0020] Optionally, according to the four-wire blending moisture online detection device described in the utility model, four travel switches are provided on the linear guide mechanism corresponding to each material taking mechanism.

[0021] The present invention has substantial features and progress over the prior art. Specifically, the present invention has the following advantages:

[0022] 1. In traditional solutions, whether the infrared moisture meter is detecting materials on the conveyor belt or in the material drop channel, there is a large amount of material stacking, and there will be different degrees of steam rising after heating. If the infrared moisture meter is directly installed in these locations, it is easily interfered by water vapor, resulting in inaccurate detection. Therefore, this solution uses a material drawer designed on one side of the drop channel to obtain a small amount of tobacco material each time. A small amount of tobacco material has a small amount of steam and can be cooled in a short time. At this time, the detection can avoid steam interference to the greatest extent and improve accuracy.

[0023] 2. A long arm that can rotate to a certain angle is also designed. After the test is completed, the tested material is returned to the conveyor belt, realizing online repeated sampling and testing, ensuring efficiency.

[0024] 3. Use linear track with a single infrared moisture meter to control costs.

[0025] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0027] Figure 1 This is a principle diagram of material taking for the online detection device for moisture content in four-wire blending in the utility model.

[0028] Figure 2 This is a schematic diagram of the principle of returning materials to the online detection device for moisture content in four-wire blending in the utility model.

[0029] Figure 3 It is a three-dimensional diagram of the material taking mechanism in the utility model.

[0030] Figure 4 It is a side view of the material taking mechanism in the utility model.

[0031] Description of reference numerals:

[0032] 1-Linear guide mechanism; 2-Infrared moisture meter; 3-Feeding mechanism; 4-Blanking channel; 5-Steering conveyor belt; 6-Consolidating conveyor belt; 31-Linear slide; 32-Long arm; 33-Feeding drawer; 321-Main arm; 322-Sub-arm; 323-Rotating shaft; 324-Half gear; 325-Drive gear. DETAILED DESCRIPTION

[0033] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0034] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0035] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0036] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0037] like Figure 1 As shown, an online detection device for moisture content in four-wire blending includes a four-wire blending line, a linear guide mechanism 1, an infrared moisture meter 2 and a material taking mechanism 3.

[0038] The four-wire blending line is an original production line, including four vertical blanking channels 4, a turning conveyor belt 5 arranged under each blanking channel 4, and a merging conveyor belt 6 arranged at the end of the turning conveyor belt 5.

[0039] The linear guide mechanism 1 is arranged above the four-wire blending line, and the infrared moisture meter 2 is installed on the movable frame of the linear guide mechanism 1, with its detection probe facing downward;

[0040] A material picking mechanism 3 is installed on one side of the lower end outlet of each blanking channel 4. The material picking mechanism 3 includes a linear slide 31 with linear reciprocating motion, a long arm 32 installed on the linear slide 31 and a material picking drawer 33 installed at the far end of the long arm 32. The linear slide 31 is an electric linear drive mechanism composed of a motor and a screw mechanism.

[0041] The linear slide 31 is used to drive the long arm 32 to perform reciprocating linear motion, and the material drawer 33 is a drawer structure with an open front end and side walls on the left, right and rear sides.

[0042] The first end point of the stroke of the material picking bin 33 is to move to the bottom of the material dropping channel 4 to pick up the material, and the second end point of the stroke is to move away from the bottom of the material dropping channel 4 for detection; four travel switches are provided on the linear guide mechanism 1 corresponding to each material picking mechanism 3, which are used to determine the stroke position, and can stop accurately at each detection point and then detect.

[0043] The long arm 32 can swing downward at a certain angle to tilt the material taking bin 33 so as to return the taken material to the turning conveyor belt 5;

[0044] The linear guide mechanism 1 drives the infrared moisture meter 2 to switch between the installation positions of each material taking mechanism 3 to obtain the moisture content of each raw material.

[0045] In order to improve flexibility, the linear guide mechanism 1 further includes a lifting mechanism (not shown), and the movable frame is installed at the far end of the lifting mechanism to drive the infrared moisture meter 2 to rise and fall.

[0046] The long arm 32 includes a main arm 321 and a sub-arm 322. The main arm 321 and the sub-arm 322 are connected by a movable joint. The movable joint includes a rotating shaft 323, a half gear 324 coaxially fixed with the rotating shaft 323, a driving gear 325 meshing with the half gear 324, and a micro motor serving as power. The micro motor and the driving gear 325 are installed in the main arm 321. The micro motor drives the sub-arm 322 to rotate around the movable joint through the driving gear 325 and the half gear 324, thereby realizing the swing of the sub-arm 322. The swing angle is generally controlled at 30°-60°.

[0047] Working principle description:

[0048] When the equipment is running, set parameters such as sampling frequency, and the equipment will run regularly according to the set parameters.

[0049] When sampling and random inspection are required, the four workstations start in sequence to prepare for inspection.

[0050] First, the material taking mechanism 3 drives the material taking drawer 33 to move to the bottom of the material dropping channel 4, takes a certain amount of sample from the material dropping channel 4, and then returns to the detection position to wait for detection;

[0051] The linear guide mechanism 1 drives the infrared moisture meter 2 to move to the detection position to detect the sample. The interval time is determined based on experience to ensure that steam interference is eliminated.

[0052] After the detection is completed, the material taking mechanism 3 moves forward a certain distance, controls the long arm 32 to swing downward a certain angle, and the material returns to the conveyor belt under the action of gravity.

[0053] It should be noted that even if a small amount of tobacco remains in the drawer 33, it will not affect the measurement accuracy, because the measurement accuracy is based on the detection of the overall material present.

[0054] Moreover, the staff can clean the testing equipment at fixed points and times according to the board to avoid excessive accumulation of adhesion.

[0055] Although some specific embodiments of the present invention have been described in detail through examples, those skilled in the art will appreciate that the above examples are for illustration only and are not intended to limit the scope of the present invention. Those skilled in the art will appreciate that modifications may be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A four-wire blending moisture online detection device, characterized in that: It includes four-wire blending line, linear guide mechanism, infrared moisture meter and material taking mechanism; The four-wire blending line includes four vertical blanking channels, a turning conveyor belt arranged under each blanking channel, and a merging conveyor belt arranged at the end of the turning conveyor belt; The linear guide mechanism is arranged above the four-wire blending line, and the infrared moisture meter is installed on the movable frame of the linear guide mechanism, with its detection probe facing downward; The material picking mechanism includes a linear slide that reciprocates linearly, a long arm mounted on the linear slide, and a material picking drawer mounted at the far end of the long arm. The first end point of the material picking drawer is to move to the bottom of the material dropping channel to pick up the material, and the second end point of the material picking drawer is to move away from the bottom of the material dropping channel for detection. The long arm can be swung downward at a certain angle to tilt the material taking bin so as to return the taken material to the diverting conveyor belt.

2. The four-wire blending moisture online detection device according to claim 1 is characterized in that: The linear guide mechanism can drive the infrared moisture meter to switch between the installation positions of various material taking mechanisms to obtain the moisture content of each raw material.

3. The four-wire blending moisture online detection device according to claim 2 is characterized in that: The linear guide mechanism further includes a lifting mechanism. The movable frame of the linear guide mechanism is installed at the far end of the lifting mechanism and is used to drive the infrared moisture meter to move up and down.

4. The online detection device for moisture content in four-wire blending according to any one of claims 1 to 3, characterized in that: The long arm includes a main arm and a sub-arm, the main arm and the sub-arm are connected by a movable joint, the sub-arm can rotate around the main arm with the movable joint as the center, and the material drawer is arranged on the sub-arm.

5. The four-wire blending moisture online detection device according to claim 4 is characterized in that: The movable joint includes a rotating shaft, a half gear fixed coaxially with the rotating shaft, a driving gear meshing with the half gear, and a micro motor serving as power. The micro motor and the driving gear are installed in the main arm, and the half gear is fixedly connected to the sub-arm. The micro motor drives the sub-arm to rotate around the rotating shaft through the driving gear and the half gear, thereby realizing the swing of the sub-arm.

6. The online detection device for moisture content in four-wire blending according to claim 1, characterized in that: The linear slide is an electric linear drive mechanism composed of a motor and a screw mechanism.

7. The online detection device for moisture content in four-wire blending according to claim 1, characterized in that: The material taking drawer is a drawer structure with an open front end and side walls on the left, right and rear sides.

8. The online detection device for moisture content in four-wire blending according to claim 1, characterized in that: Four travel switches are provided on the linear guide mechanism corresponding to each material taking mechanism.

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