Tobacco stem detection device and long stem detection method

Abstract

The invention provides a tobacco stem detection device and a long stem detection method.The tobacco stem detection device comprises a detection assembly and a clamping assembly, the detection assembly comprises a first detection wall and a second detection wall, and a detection cavity with a detection distance is formed between the first detection wall and the second detection wall; the clamping assembly comprises a moving block, a first clamping piece and a second clamping piece, the first clamping piece and the second clamping piece are installed on the moving block, and a clamping cavity is formed between the first clamping piece and the second clamping piece; the clamping assembly is driven by the moving block to move close to or away from the direction of the detection cavity. The tobacco stems are clamped through the clamping cavity, after the tobacco stems are clamped, the clamping assembly is driven by the moving block to move close to the clamping cavity, and if the clamping assembly can drive the tobacco stems to enter the detection cavity with the set detection distance, the tobacco stems are short stems; if the clamping assembly cannot drive the tobacco stems to enter the detection cavity with the set detection distance, the tobacco stems are long stems. Whether the tobacco stems are long stems or short stems can be effectively detected, manual measurement or detection operation is avoided, and manpower is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of tobacco stem length detection, and in particular to a tobacco stem detection device and a long stem detection method. Background Art

[0002] The leaf threshing process tears the original tobacco into tobacco stems and free tobacco leaves. The tobacco stems include long stems, short stems, broken stems and stem bends of different sizes. The tobacco stems are divided into long stems and short stems after screening, but a certain amount of short stems are mixed in the long stems after screening. At this time, it is necessary to manually take a certain amount of long stem samples and test the length of each tobacco stem in the sample to determine whether the proportion of long stems in the long stem sample meets the quality standard requirements. This detection method takes a long time and manpower, and manual screening is prone to errors, resulting in inaccurate results. Summary of the invention

[0003] The present invention solves one of the problems existing in the existing related technologies to a certain extent. To this end, one purpose of the present invention is to provide a tobacco stem detection device, which can effectively detect whether the tobacco stems are long stems or short stems, avoid manual measurement or detection operations, and save manpower.

[0004] The above purpose is achieved through the following technical solutions:

[0005] A tobacco stem detection device includes a detection component and a clamping component, the detection component includes a first detection wall and a second detection wall, a detection cavity with a detection spacing is formed between the first detection wall and the second detection wall, the clamping component includes a moving block, a first clamping member and a second clamping member, the first clamping member and the second clamping member are installed on the moving block, a clamping cavity is formed between the first clamping member and the second clamping member, and the clamping component is driven by the moving block to move towards or away from the detection cavity.

[0006] As a further improvement of the present invention, a first clamping groove is formed on one end of the first clamping member close to the second clamping member, a second clamping groove is formed on one end of the second clamping member close to the first clamping member, and the clamping cavity is formed at the first clamping groove and the second clamping groove.

[0007] As a further improvement of the present invention, the first clamping member is fixedly mounted on the moving block, and the first clamping member is at one end of the moving block close to the detection cavity; the second clamping member is at one end away from the detection cavity, and the second clamping member can move on the moving block towards or away from the first clamping member.

[0008] As a further improvement of the present invention, the clamping assembly also includes a retaining wall and an elastic member, the retaining wall is connected to the moving block, and the retaining wall is at one end of the moving block away from the detection cavity, one end of the elastic member is connected to the retaining wall, and the other end is connected to the second clamping member.

[0009] As a further improvement of the present invention, a slide groove is provided on the moving block, and a slider is protruding from the second clamping member, and the slider extends into the slide groove. The second clamping member can be slidably installed on the moving block through the cooperation between the slider and the slide groove.

[0010] As a further improvement of the present invention, the detection component also includes a fixed plate, the first detection wall and the second detection wall are arranged opposite to each other, and one end of the first detection wall and the second detection wall are close to the fixed plate, and the other end extends toward the clamping component, and a detection cavity with an opening at one end facing the detection cavity is formed between the fixed plate, the first detection wall and the second detection wall.

[0011] As a further improvement of the present invention, it also includes a mounting platform, the first detection wall and the second detection wall are mounted on the mounting platform, and the first detection wall is fixedly connected to the mounting platform, and the second detection wall can be moved on the mounting platform in a direction close to or away from the first detection wall, so as to adjust the size of the detection interval by moving the second detection wall.

[0012] As a further improvement of the present invention, a first inclined surface is formed at one end of the first detection wall close to the clamping assembly, and the first inclined surface is inclined outward from one end away from the clamping assembly to one end close to the clamping assembly; a second inclined surface is formed at one end of the second detection wall close to the clamping assembly, and the second inclined surface is inclined outward from one end away from the clamping assembly to one end close to the clamping assembly.

[0013] As a further improvement of the present invention, a first light touch detection portion is provided on the first inclined surface; and a second light touch detection portion is provided on the second inclined surface.

[0014] One object of the present invention is to provide a method for detecting long stems of tobacco stems, which can effectively detect long stems.

[0015] The above purpose is achieved through the following technical solutions:

[0016] A method for detecting long stems of tobacco stems comprises the following steps:

[0017] Step S101, obtaining the total mass m1 of the sample;

[0018] Step S102, clamping the tobacco stems by a first clamping member and a second clamping member;

[0019] Step S103, controlling the clamping assembly to move toward the detection cavity;

[0020] Step S104, judging whether the tobacco stem is a long stem according to whether the clamping assembly can smoothly enter the detection cavity.

[0021] Compared with the prior art, the present invention has at least the following beneficial effects:

[0022] 1. The present invention proposes a tobacco stem detection device, which clamps the tobacco stem through a clamping cavity. After clamping the tobacco stem, the clamping assembly is driven by a moving block to move close to the clamping cavity. If the clamping assembly can drive the tobacco stem into the detection cavity with a set detection distance, it means that the tobacco stem is a short stem; if the clamping assembly cannot drive the tobacco stem into the detection cavity with a set detection distance, it means that the tobacco stem is a long stem. It can effectively detect whether the tobacco stem is a long stem or a short stem, avoid manual measurement or detection operations, and save manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of a tobacco stem detection device in an embodiment;

[0024] Figure 2 Another structural schematic diagram of a tobacco stem detection device in an embodiment

[0025] Figure 3 is a schematic diagram of the structure of the detection component in the embodiment;

[0026] Figure 4 is a structural schematic diagram of the second clamping member in the embodiment moving in a direction away from the first clamping member;

[0027] Figure 5 is a schematic structural diagram of the clamping assembly in the clamping state in the embodiment;

[0028] Figure 6 is a schematic diagram of the structure of the moving block in the embodiment;

[0029] Figure 7 is a schematic diagram of the structure of the first clamping member in the embodiment (the slider is omitted here);

[0030] Figure 8 Schematic diagram of the structure of the second clamping member in the embodiment (the slider is omitted here). DETAILED DESCRIPTION

[0031] The following examples illustrate the present invention, but the present invention is not limited to these examples. Modifications to the specific embodiments of the present invention or equivalent replacement of some technical features without departing from the spirit of the present invention should be included in the scope of the technical solution claimed by the present invention.

[0032] like Figure 1-8 A tobacco stem detection device 100 includes a detection component 1 and a clamping component 2, wherein the detection component 1 includes a first detection wall 11 and a second detection wall 12, and a detection cavity 14 with a detection spacing W1 is formed between the first detection wall 11 and the second detection wall 12, and the clamping component 2 includes a moving block 21, a first clamping member 22 and a second clamping member 23, the first clamping member 22 and the second clamping member 23 are installed on the moving block 21, and a clamping cavity 24 is formed between the first clamping member 22 and the second clamping member 23, and the clamping component 2 is driven by the moving block 21 to move toward or away from the detection cavity 14.

[0033] The present invention provides a tobacco stem detection device, which clamps the tobacco stem through a clamping cavity 24. After clamping the tobacco stem, the moving block 21 drives the clamping assembly 2 to move close to the clamping cavity 24. If the clamping assembly 2 can drive the tobacco stem into the detection cavity 14 with a set detection distance, it means that the tobacco stem is a short stem; if the clamping assembly 2 cannot drive the tobacco stem into the detection cavity 14 with a set detection distance, it means that the tobacco stem is a long stem. It can effectively detect whether the tobacco stem is a long stem or a short stem, avoid manual measurement or detection operations, and save manpower.

[0034] In this embodiment, the detection interval W1 is 20 mm.

[0035] In this embodiment, the tobacco stem is too long and will collide with the first detection wall 11 or the second detection wall 12 when entering the detection cavity 14. That is, the first detection wall 11 or the second detection wall 12 will block the tobacco stem from entering the detection cavity 14, making it impossible for the excessively long tobacco stem to enter.

[0036] A first clamping groove 221 is formed on one end of the first clamping member 22 close to the second clamping member 23 , a second clamping groove 231 is formed on one end of the second clamping member 23 close to the first clamping member 22 , and the clamping cavity 24 is formed at the first clamping groove 221 and the second clamping groove 231 .

[0037] In this embodiment, the first clamping groove 221 is an arc-shaped groove; the second clamping groove 231 is an arc-shaped groove. And the cross-section of the clamping cavity 24 is smaller than a semicircle. The cross-section of the tobacco stem is usually circular or quasi-circular. The arc-shaped grooves of the first clamping groove 221 and the arc-shaped grooves of the second clamping groove 231 can effectively prevent the tobacco stem from escaping from the clamping cavity 24, so as to effectively clamp the tobacco stem.

[0038] The first clamping member 22 is fixedly mounted on the moving block 21, and the first clamping member 22 is at one end of the moving block 21 close to the detection chamber 14; the second clamping member 23 is at one end away from the detection chamber 14, and the second clamping member 23 can move on the moving block 21 toward or away from the first clamping member 22.

[0039] When the tobacco stems need to be placed in the clamping cavity 24, the second clamping member 23 is moved away from the first clamping member 22 so that the tobacco stems can be placed in the clamping cavity 24; after being placed, the second clamping member 23 is moved toward the first clamping member 22 so that the tobacco stems are clamped in the clamping cavity 24 to prevent the tobacco stems from falling out.

[0040] The clamping assembly 2 also includes a retaining wall 25 and an elastic member 26. The retaining wall 25 is connected to the moving block 21, and the retaining wall 25 is at one end of the moving block 21 away from the detection cavity 14. One end of the elastic member 26 is connected to the retaining wall 25, and the other end is connected to the second clamping member 23.

[0041] In this embodiment, the elastic member 26 comprises a spring. One or more springs may be arranged between the retaining wall 25 and the second clamping member 23 .

[0042] In this embodiment, the second clamping member 23 and the blocking wall 25 are connected by the elastic member 26 , so that the second clamping member 23 always moves toward the direction approaching the first clamping member 22 .

[0043] When the tobacco stems need to be placed into the clamping cavity 24, the second clamping member 23 is manually moved to move the second clamping member 23 away from the first clamping member 22 so that the tobacco stems can be placed into the clamping cavity 24; after being placed, under the action of the spring, the second clamping member 23 moves toward the first clamping member 22, so that the tobacco stems are clamped into the clamping cavity 24 to prevent the tobacco stems from falling out.

[0044] In this embodiment, a slide groove 211 is provided on the moving block 21, and a slider is protruding from the second clamping member 23. The slider extends into the slide groove 211, and the second clamping member 23 can be slidably installed on the moving block 21 through the cooperation between the slider and the slide groove 211.

[0045] In some embodiments, a slide rail is provided on the moving block 21 , and a pulley is provided at the second clamping member 23 , and the second clamping member 23 is slidably mounted on the moving block 21 through the cooperation of the pulley and the slide rail.

[0046] The detection component 1 also includes a fixed plate 13, the first detection wall 11 and the second detection wall 12 are arranged opposite to each other, and one end of the first detection wall 11 and the second detection wall 12 are close to the fixed plate 13, and the other end extends toward the clamping component 2, and a detection cavity 14 with an opening at one end facing the detection cavity 14 is formed between the fixed plate 13, the first detection wall 11 and the second detection wall 12.

[0047] In this embodiment, the fixing plate 13 is disposed perpendicular to the first detection wall 11 and the second detection wall 12 .

[0048] It also includes a first driving component, which includes a first motor and a first screw rod 61. The first motor is connected to the first screw rod 61 so that the first motor drives the first screw rod 61 to rotate. The moving block 21 is installed on the first screw rod 61 so that the movement of the moving block 21 is driven to move toward or away from the detection chamber 14 through the rotation of the first screw rod 61.

[0049] In this embodiment, a through hole is provided on the fixing plate 13 , and the first screw rod 61 passes through the through hole to be connected with the moving block 21 . The first motor is mounted on the fixing plate 13 .

[0050] It also includes a mounting platform, on which the first detection wall 11 and the second detection wall 12 are mounted, and the first detection wall 11 is fixedly connected to the mounting platform, and the second detection wall 12 can move on the mounting platform in a direction close to or away from the first detection wall 11, so as to adjust the size of the detection interval by moving the second detection wall 12.

[0051] In this embodiment, the fixing plate 13 , the first detection wall 11 , the second detection wall 12 and the moving block 21 are all installed on the installation platform.

[0052] In this embodiment, the first detection wall 11 is fixedly mounted on the mounting platform, the second detection wall 12 is arranged opposite to the first detection wall 11, and the second detection wall 12 can move towards or away from the first detection wall 11 to adjust the detection interval W1.

[0053] It also includes a second driving component, which includes a second motor and a second screw rod 62. The second motor is connected to the second screw rod 62 so that the second motor drives the second screw rod 62 to rotate. The second detection wall 12 is installed on the second screw rod 62 so that the rotation of the second screw rod 62 drives the second detection wall 12 to move closer to or away from the first detection wall 11.

[0054] In this embodiment, a mounting hole is provided on the first detection wall 11 , and the second screw rod 62 passes through the mounting hole and is connected to the second detection wall 12 . The second motor is mounted on the first detection wall 11 .

[0055] A first inclined surface 111 is formed at one end of the first detection wall 11 close to the clamping assembly 2, and the first inclined surface 111 is arranged to be inclined outward from one end away from the clamping assembly 2 to one end close to the clamping assembly 2;

[0056] A second inclined surface 121 is formed at one end of the second detection wall 12 close to the clamping assembly 2 , and the second inclined surface 121 is inclined outwardly from one end away from the clamping assembly 2 to one end close to the clamping assembly 2 .

[0057] In this embodiment, the openings at the first inclined surface 111 and the second inclined surface 121 gradually decrease from the end close to the clamping assembly 2 to the end close to the fixing plate 13 .

[0058] The second motor of the second driving assembly drives the second detection wall 12 to move, so as to adjust the detection interval between the first detection wall 11 and the second detection wall 12. In some embodiments, an identification card is provided on the fixing plate 13, and the size of the detection interval can be read through the identification card.

[0059] The tobacco stem is clamped to the clamping assembly 2, and the second detection wall 12 is driven to move by the rotation of the second motor to drive and adjust the detection interval to a suitable length. Then the first motor is driven to rotate to drive the moving block 21 to move towards the detection cavity 14. When the moving block 21 can move smoothly into the detection cavity 14, it means that the length of the tobacco stem is less than the detection interval, indicating that it is a short stem; when the tobacco stem cannot move into the detection cavity 14, it means that the length of the tobacco stem is greater than the detection distance, indicating that it is a long stem, which means that the length of the tobacco stem is qualified. In some embodiments, the detection interval is 20mm.

[0060] A first detection surface is formed on the first inclined surface 111, and the first detection surface is used to detect whether the tobacco stem is touched; a second detection surface is formed on the second inclined surface 121, and the second detection surface is used to detect whether the tobacco stem is touched. A controller is also included, and the controller is electrically connected to the first detection surface and the second detection surface.

[0061] In this embodiment, due to the presence of the first inclined surface 111 and the second inclined surface 121, when the clamping assembly 2 moves into the detection cavity 14, one end of the tobacco stem contacts the first inclined surface 111 but does not contact the second inclined surface 121, and the tobacco stem can be pushed to move radially in the clamping cavity 24 by the first inclined surface 111, that is, the tobacco stem is pushed to move a certain distance in the direction of the second inclined surface 121;

[0062] When the clamping assembly 2 moves into the detection cavity 14, one end of the tobacco stem contacts the second inclined surface 121 but does not contact the first inclined surface 111, and the tobacco stem can be pushed to move radially in the clamping cavity 24 by the second inclined surface 121, that is, the tobacco stem is pushed to move a certain distance in the direction of the first inclined surface 111;

[0063] When the clamping assembly 2 moves into the detection chamber 14, one end of the tobacco stem contacts the first inclined surface 111 and the other end contacts the second inclined surface 121. The controller receives contact signals fed back from the first detection surface of the first inclined surface 111 and the second detection surface of the second inclined surface 121, indicating that the tobacco stem is too long to enter the detection chamber 14. At this time, the clamping assembly 2 is no longer driven to enter the detection chamber 14.

[0064] Embodiment 2:

[0065] A method for detecting long stems is applied to a tobacco stem detection device in the first embodiment to obtain a long stem rate of tobacco stems, comprising the following steps:

[0066] Step S101, obtaining the total mass m1 of the sample;

[0067] Step S102, clamping the tobacco stems by a first clamping member and a second clamping member;

[0068] Step S103, controlling the clamping assembly to move toward the detection cavity;

[0069] Step S104, judging whether the tobacco stem is a long stem according to whether the clamping assembly can smoothly enter the detection cavity.

[0070] After step S104, the following steps are also included:

[0071] Step S105, obtaining the mass m2 of the tobacco stems that are long stems, and obtaining the long stem rate according to the mass m2 of the long stems and the total mass m1 of the sample.

[0072] In step S105, the long stem ratio is m2 / m1×100%.

[0073] Among them, in step S104, the steps of judging whether the tobacco stem is a long stem according to whether the clamping assembly can smoothly enter the detection cavity are specifically as follows:

[0074] Step S401, detecting whether the first detection wall touches the tobacco stem, and detecting whether the second detection wall touches the tobacco stem;

[0075] If it is detected that the first detection wall does not touch the tobacco stem, and the second detection wall does not touch the tobacco stem, then proceed to step S402;

[0076] If it is detected that the first detection wall touches the tobacco stem, but the second detection wall does not touch the tobacco stem, the process proceeds to step S404;

[0077] If it is detected that the second detection wall touches the tobacco stem, but the first detection wall does not touch the tobacco stem, the process proceeds to step S404;

[0078] If it is detected that the first detection wall touches the tobacco stem, and the second detection wall also touches the tobacco stem, then the process proceeds to step S403;

[0079] Step S402, the clamping assembly enters the detection chamber and determines that the tobacco stem is a short stem;

[0080] Step S403, determining that the tobacco stem is a long stem;

[0081] Step S404, controlling the clamping assembly to continue moving toward the detection cavity, and returning to step S401.

[0082] That is, in step S404, it is necessary to detect whether the first detection wall and the second detection wall both touch the tobacco stem or neither touches the tobacco stem.

[0083] In step S105, the tobacco stems that cannot enter the detection chamber are collected and weighed to obtain the mass m2 of the long stems.

[0084] In this example, the following steps are also included before step S101:

[0085] Step S100, adjusting the detection distance W1 by moving the second detection wall.

[0086] In this embodiment, the detection interval W1 is 20 mm.

[0087] The above-mentioned preferred implementation modes should be regarded as illustrative examples of the implementation modes of the present application scheme. Any technical deductions, replacements, improvements, etc. that are identical or similar to the present application scheme or made based on this scheme should be regarded as within the scope of protection of this patent.

Claims

1. A tobacco stem detection device, characterized in that: It includes a detection component and a clamping component, the detection component includes a first detection wall and a second detection wall, a detection cavity with a detection spacing is formed between the first detection wall and the second detection wall, the clamping component includes a moving block, a first clamping member and a second clamping member, the first clamping member and the second clamping member are installed on the moving block, a clamping cavity is formed between the first clamping member and the second clamping member, and the clamping component is driven by the moving block to move towards or away from the detection cavity.

2. A tobacco stem detection device according to claim 1, characterized in that: A first clamping groove is formed on one end of the first clamping member close to the second clamping member, a second clamping groove is formed on one end of the second clamping member close to the first clamping member, and the clamping cavity is formed at the first clamping groove and the second clamping groove.

3. A tobacco stem detection device according to claim 1 or 2, characterized in that: The first clamping member is fixedly mounted on the moving block, and the first clamping member is at one end of the moving block close to the detection cavity; the second clamping member is at one end away from the detection cavity, and the second clamping member can move on the moving block towards or away from the first clamping member.

4. A tobacco stem detection device according to claim 3, characterized in that: The clamping assembly also includes a retaining wall and an elastic member, wherein the retaining wall is connected to the moving block and is at one end of the moving block away from the detection cavity, one end of the elastic member is connected to the retaining wall, and the other end is connected to the second clamping member.

5. A tobacco stem detection device according to claim 3, characterized in that: A slide groove is provided on the moving block, and a slider is protruding from the second clamping member. The slider extends into the slide groove, and the second clamping member is slidably installed on the moving block through the cooperation between the slider and the slide groove.

6. A tobacco stem detection device according to claim 1, characterized in that: The detection component also includes a fixed plate, the first detection wall and the second detection wall are arranged opposite to each other, and one end of the first detection wall and the second detection wall are close to the fixed plate, and the other end extends toward the clamping component, and a detection cavity with an opening at one end facing the detection cavity is formed between the fixed plate, the first detection wall and the second detection wall.

7. A tobacco stem detection device according to claim 1, characterized in that: It also includes a mounting platform, the first detection wall and the second detection wall are mounted on the mounting platform, and the first detection wall is fixedly connected to the mounting platform, and the second detection wall can be moved on the mounting platform in a direction close to or away from the first detection wall, so as to adjust the size of the detection interval by moving the second detection wall.

8. A tobacco stem detection device according to claim 1, characterized in that: A first inclined surface is formed at one end of the first detection wall close to the clamping assembly, and the first inclined surface is inclined outward from one end away from the clamping assembly to one end close to the clamping assembly; a second inclined surface is formed at one end of the second detection wall close to the clamping assembly, and the second inclined surface is inclined outward from one end away from the clamping assembly to one end close to the clamping assembly.

9. A method for detecting long stems of tobacco stems, using a tobacco stem detection device according to any one of claims 1 to 8, comprising the following steps: Step S101, obtaining the total mass m1 of the sample; Step S102, clamping the tobacco stems by a first clamping member and a second clamping member; Step S103, controlling the clamping assembly to move toward the detection cavity; Step S104, judging whether the tobacco stem is a long stem according to whether the clamping assembly can smoothly enter the detection cavity.

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