Tobacco stem detection device

Abstract

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, a detection cavity with a detection distance is formed between the first detection wall and the second detection wall, and 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, a clamping cavity is formed between the first clamping piece and the second clamping piece, and the clamping assembly is driven by the moving block to move in the direction close to or away from 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 utility model relates to tobacco stem length detection technical field, specifically related to a tobacco stem detection device. BACKGROUND

[0002] The threshing procedure tears the raw tobacco into tobacco stems and free tobacco leaves, and the tobacco stems have long stems, short stems, broken stems and stem bends of different sizes. After screening, the tobacco stems are divided into long stems and short stems, but a certain amount of short stems is mixed in the screened long stems. At this time, a certain amount of long stem samples needs to be taken manually, and the length of each tobacco stem of the sample is detected to determine whether the proportion of long stems in the long stem sample meets the quality standard. This detection method consumes a long time and labor, and manual screening is prone to errors, resulting in inaccurate results. SUMMARY

[0003] The utility model solves one of the problems in the prior art to some extent. Therefore, one purpose of the utility model is to provide a tobacco stem detection device that can effectively detect whether the tobacco stems are long stems or short stems, avoiding manual measurement or detection operations and saving labor.

[0004] The above-mentioned purpose is achieved by the following technical solutions:

[0005] A tobacco stem detection device includes a detection assembly and a clamping assembly. The detection assembly includes a first detection wall and a second detection wall, and a detection cavity with a detection interval is formed between the first detection wall and the second detection wall. The clamping assembly includes 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 moving block drives the clamping assembly to move towards or away from the detection cavity.

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

[0007] As a further improvement of the utility model, the first clamping piece is fixedly installed on the moving block, and the first clamping piece is located at one end of the moving block close to the detection cavity. The second clamping piece is located at one end of the moving block away from the detection cavity, and the second clamping piece can move towards or away from the first clamping piece on the moving block.

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

[0015] 1.The utility model provides a tobacco stem detection device, through clamping cavity carries out the clamping to tobacco stem, after clamping tobacco stem, through the moving block drives the clamping component to do the movement close to the clamping cavity, if clamping component can drive tobacco stem to enter the detection cavity of setting good detection interval, then explain tobacco stem for short stem, if clamping component can not drive tobacco stem to enter the detection cavity of setting good detection interval, then explain tobacco stem for long stem. Can effectively detect tobacco stem for long stem or short stem, avoid the operation of artificial measurement or detection, save manpower. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is structure schematic diagram of a tobacco stem detection device in the embodiment;

[0017] Figure 2 It is another structure schematic diagram of a tobacco stem detection device in the embodiment

[0018] Figure 3 It is structure schematic diagram of detection component in the embodiment;

[0019] Figure 4 It is structure schematic diagram of second clamping piece to the direction of moving away from the first clamping piece in the embodiment;

[0020] Figure 5 It is structure schematic diagram of clamping component in the clamping state in the embodiment;

[0021] Figure 6 It is structure schematic diagram of moving block in the embodiment;

[0022] Figure 7 It is structure schematic diagram of first clamping piece in the embodiment (omit slider here);

[0023] Figure 8 It is structure schematic diagram of second clamping piece in the embodiment (omit slider here). DETAILED DESCRIPTION

[0024] The following embodiments are used to illustrate the utility model, but the utility model is not limited by these embodiments. The specific embodiment of the utility model is modified or part of the technical features is replaced, and the spirit of the utility model is not deviated, and it should be covered in the technical scheme range of the utility model claimed.

[0025] As Figure 1-8A tobacco stem detection device 100, comprising a detection assembly 1 and a clamping assembly 2, the detection assembly 1 comprising a first detection wall 11 and a second detection wall 12, a detection cavity 14 with a detection interval W1 being formed between the first detection wall 11 and the second detection wall 12, the clamping assembly 2 comprising a moving block 21, a first clamping piece 22 and a second clamping piece 23, the first clamping piece 22 and the second clamping piece 23 being installed on the moving block 21, a clamping cavity 24 being formed between the first clamping piece 22 and the second clamping piece 23, and the clamping assembly 2 being driven by the moving block 21 to move towards or away from the detection cavity 14.

[0026] The utility model provides a kind of tobacco stem detection device, tobacco stem is clamped by clamping cavity 24, after clamping tobacco stem, moving block 21 drives clamping assembly 2 to move towards the clamping cavity 24, if clamping assembly 2 can drive tobacco stem to enter the detection cavity 14 with set detection interval, then it is explained that tobacco stem is short stem;If clamping assembly 2 cannot drive tobacco stem to enter the detection cavity 14 with set detection interval, then it is explained that tobacco stem is long stem. Tobacco stem can be effectively detected as long or short stem, avoid artificial measurement or the operation of detection, save manpower.

[0027] In the embodiment, the detection interval W1 is 20mm.

[0028] In the embodiment, tobacco stem length is too long, and when entering the detection cavity 14, it will be resisted by the first detection wall 11 or the second detection wall 12, so that the first detection wall 11 or the second detection wall 12 blocks tobacco stem from entering the detection cavity 14, so that the tobacco stem that is too long cannot enter.

[0029] A first clamping groove 221 is formed on the first clamping piece 22 close to one end of the second clamping piece 23, a second clamping groove 231 is formed on the second clamping piece 23 close to one end of the first clamping piece 22, and the clamping cavity 24 is formed at the first clamping groove 221 and the second clamping groove 231.

[0030] In the embodiment, the first clamping groove 221 is an arc-shaped groove, and the second clamping groove 231 is an arc-shaped groove. The cross-sectional size of the clamping cavity 24 is smaller than a semicircle. The cross section of tobacco stem is usually circular or circular-like, and the tobacco stem is clamped by the arc-shaped groove of the first clamping groove 221 and the arc-shaped groove of the second clamping groove 231, so that the tobacco stem can be effectively prevented from separating from the clamping cavity 24, and the tobacco stem is effectively clamped.

[0031] The first clamping piece 22 is fixedly installed on the moving block 21, and the first clamping piece 22 is located at one end of the moving block 21 close to the detection cavity 14; the second clamping piece 23 is located at one end of the moving block 21 away from the detection cavity 14, and the second clamping piece 23 can move towards or away from the first clamping piece 22 on the moving block 21.

[0032] When it is needed to put the tobacco stem into the clamping cavity 24, the second clamping piece 23 is moved away from the first clamping piece 22, so that the tobacco stem can be put into the clamping cavity 24; after being put in, the second clamping piece 23 is moved towards the first clamping piece 22, so that the tobacco stem is clamped into the clamping cavity 24, avoiding the tobacco stem from being separated.

[0033] The clamping assembly 2 further comprises a blocking wall 25 and an elastic piece 26, the blocking wall 25 is connected with the moving block 21, and the blocking wall 25 is located at one end of the moving block 21 away from the detection cavity 14, one end of the elastic piece 26 is connected with the blocking wall 25, and the other end is connected with the second clamping piece 23.

[0034] In the embodiment, the elastic piece 26 comprises a spring. One or more springs can be arranged between the blocking wall 25 and the second clamping piece 23.

[0035] In the embodiment, the second clamping piece 23 and the blocking wall 25 are connected through the elastic piece 26, so that the second clamping piece 23 always moves towards the first clamping piece 22.

[0036] When it is needed to put the tobacco stem into the clamping cavity 24, the second clamping piece 23 is manually moved away from the first clamping piece 22, so that the tobacco stem can be put into the clamping cavity 24; after being put in, under the action of the spring, the second clamping piece 23 moves towards the first clamping piece 22, so that the tobacco stem is clamped into the clamping cavity 24, avoiding the tobacco stem from being separated.

[0037] In the embodiment, a sliding groove 211 is arranged on the moving block 21, and a sliding block is protrudingly arranged at the second clamping piece 23, the sliding block extends into the sliding groove 211, and the second clamping piece 23 is slidably installed on the moving block 21 through cooperation of the sliding block and the sliding groove 211.

[0038] In some embodiments, a sliding rail is arranged on the moving block 21, and a pulley is arranged at the second clamping piece 23, and the second clamping piece 23 is slidably installed on the moving block 21 through cooperation of the pulley and the sliding rail.

[0039] The detection assembly 1 further comprises a fixed plate 13, the first detection wall 11 and the second detection wall 12 are oppositely arranged, 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 to the direction of the clamping assembly 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.

[0040] In this embodiment, the fixed plate 13 is arranged perpendicular to the first detection wall 11 and the second detection wall 12.

[0041] Further comprising a first driving assembly, the first driving assembly comprises a first motor and a first lead screw 61, the first motor is connected with the first lead screw 61, so that the first lead screw 61 is driven to rotate by the first motor, and the moving block 21 is installed on the first lead screw 61, so that the moving block 21 is driven to move to the direction of approaching or moving away from the detection cavity 14 by the rotation of the first lead screw 61.

[0042] In this embodiment, the fixed plate 13 is provided with a through hole, and the first lead screw 61 passes through the through hole and is connected with the moving block 21. The first motor is installed on the fixed plate 13.

[0043] Further comprising a mounting table, the first detection wall 11 and the second detection wall 12 are installed on the mounting table, and the first detection wall 11 is fixedly connected with the mounting table, and the second detection wall 12 can move on the mounting table to the direction of approaching or moving away from the first detection wall 11, so as to adjust the size of the detection distance by the movement of the second detection wall 12.

[0044] In this embodiment, the fixed plate 13, the first detection wall 11, the second detection wall 12 and the moving block 21 are all installed on the mounting table.

[0045] In this embodiment, the first detection wall 11 is fixedly installed on the mounting table, the second detection wall 12 is oppositely arranged with the first detection wall 11, and the second detection wall 12 can move to the direction of approaching or moving away from the first detection wall 11, so as to adjust the detection distance W1.

[0046] Further comprising a second driving assembly, the second driving assembly comprises a second motor and a second lead screw 62, the second motor is connected with the second lead screw 62, so that the second lead screw 62 is driven to rotate by the second motor, and the second detection wall 12 is installed on the second lead screw 62, so that the second detection wall 12 is driven to move to the direction of approaching or moving away from the first detection wall 11 by the rotation of the second lead screw 62.

[0047] And in the embodiment, the first detection wall 11 is provided with a mounting hole, and the second lead screw 62 passes through the mounting hole and is connected with the second detection wall 12. The second motor is mounted on the first detection wall 11.

[0048] A first inclined slope 111 is formed on the first detection wall 11 near one end of the clamping assembly 2, and the first inclined slope 111 is outwardly inclined from one end away from the clamping assembly 2 to one end near the clamping assembly 2.

[0049] A second inclined slope 121 is formed on the second detection wall 12 near one end of the clamping assembly 2, and the second inclined slope 121 is outwardly inclined from one end away from the clamping assembly 2 to one end near the clamping assembly 2.

[0050] In the embodiment, the opening at the first inclined slope 111 and the second inclined slope 121 gradually decreases from one end near the clamping assembly 2 to one end near the fixed plate 13.

[0051] The second detection wall 12 is driven to move by the second motor of the second driving assembly, so as to adjust the detection distance between the first detection wall 11 and the second detection wall 12. In some embodiments, the fixed plate 13 is provided with an identification card, and the size of the detection distance can be read by the identification card.

[0052] The tobacco stem is clamped on the clamping assembly 2, the second detection wall 12 is driven to move by the rotation of the second motor, so as to drive and adjust the detection distance to a suitable length. Then the first motor is driven to rotate, so as to drive the moving block 21 to move towards the detection cavity 14. When the moving block 21 can move into the detection cavity 14 smoothly, it indicates that the length of the tobacco stem is less than the detection distance, which means that the tobacco stem is short. When the tobacco stem cannot move into the detection cavity 14, it indicates that the length of the tobacco stem is greater than the detection distance, which means that the tobacco stem is long. In some embodiments, the detection distance is 20 mm.

[0053] A first detection surface is formed on the first inclined slope 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 slope 121, and the second detection surface is used to detect whether the tobacco stem is touched. A controller is further included, and the controller is electrically connected with the first detection surface and the second detection surface.

[0054] 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 chamber 14, one end of the tobacco stem contacts the first inclined surface 111 but does not contact the second inclined surface 121. Then, the first inclined surface 111 can push the tobacco stem to move radially in the clamping chamber 24, that is, push the tobacco stem to move a certain distance in the direction of the second inclined surface 121.

[0055] 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. The second inclined surface 121 can push the tobacco stem to move radially in the clamping cavity 24, that is, push the tobacco stem to move a certain distance toward the first inclined surface 111.

[0056] 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 then receives contact signals 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.

[0057] Example 2:

[0058] A method for detecting long stems of tobacco stems, applied to a tobacco stem detection device in Example 1 to obtain a long stem rate of tobacco stems, comprises the following steps:

[0059] Step S101, obtaining the total mass m1 of the sample;

[0060] Step S102, clamping the tobacco stems by a first clamping member and a second clamping member;

[0061] Step S103, controlling the clamping assembly to move toward the detection cavity;

[0062] Step S104 , judging whether the tobacco stem is a long stem based on whether the clamping assembly can smoothly enter the detection chamber.

[0063] After step S104, the following steps are also included:

[0064] Step S105 , obtaining the mass m2 of the long stems of the tobacco stems, and obtaining the long stem rate based on the mass m2 of the long stems and the total mass m1 of the sample.

[0065] In step S105 , the stem length ratio is m2 / m1×100%.

[0066] Among them, in step S104, the steps of determining whether the tobacco stem is a long stem according to whether the clamping assembly can smoothly enter the detection chamber are specifically as follows:

[0067] Step S401, detecting whether the first detection wall touches the tobacco stem and detecting whether the second detection wall touches the tobacco stem;

[0068] 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, step S402 is entered;

[0069] If it is detected that the first detection wall touches the tobacco stem and the second detection wall does not touch the tobacco stem, step S404 is entered;

[0070] If it is detected that the second detection wall touches the tobacco stem and the first detection wall does not touch the tobacco stem, step S404 is entered;

[0071] If it is detected that the first detection wall touches the tobacco stem and the second detection wall also touches the tobacco stem, step S403 is entered;

[0072] Step S402, the clamping assembly enters the detection cavity, and it is judged that the tobacco stem is a short stem;

[0073] Step S403, it is judged that the tobacco stem is a long stem;

[0074] Step S404, the clamping assembly is controlled to continue moving towards the detection cavity, and step S401 is returned.

[0075] That is, in step S404, it is required to detect that the first detection wall and the second detection wall both touch the tobacco stem or both do not touch the tobacco stem.

[0076] In step S105, the tobacco stems that cannot enter the detection cavity are concentrated and weighed to obtain the mass m2 of the long stems.

[0077] In the present example, the following steps are further included before step S101:

[0078] Step S100, adjusting the detection distance W1 by moving the second detection wall.

[0079] In the present embodiment, the detection distance W1 can be adjusted to 20 mm.

[0080] The above preferred embodiment should be regarded as an example of the implementation of the present application, and any technical deduction, replacement, improvement, etc. made similarly, approximately or based on the above should be regarded as the protection scope of the present 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, and a detection cavity with a detection distance 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, and a clamping cavity is formed between the first clamping member and the second clamping member. 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 toward or away from the first clamping member.

4. The tobacco stem detection device according to claim 3, characterized in that: 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.

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

6. The tobacco stem detection device according to claim 1, characterized in that: The detection assembly 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 assembly, 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. The 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 distance by moving the second detection wall.

8. The 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 arranged to be 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 arranged to be inclined outward from one end away from the clamping assembly to one end close to the clamping assembly.

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