CN109470117B - Device for on-line monitoring of bamboo chip edge lack - Google Patents
Device for on-line monitoring of bamboo chip edge lack Download PDFInfo
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- CN109470117B CN109470117B CN201811360849.4A CN201811360849A CN109470117B CN 109470117 B CN109470117 B CN 109470117B CN 201811360849 A CN201811360849 A CN 201811360849A CN 109470117 B CN109470117 B CN 109470117B
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- lever rocker
- measuring
- bamboo chip
- rocker arm
- electronic ruler
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
- G01B5/04—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness specially adapted for measuring length or width of objects while moving
Abstract
The invention discloses a device for monitoring bamboo chip edge deletion on line, which comprises two lever rocker arms, a measuring support, a measuring head and an electronic ruler, wherein the two lever rocker arms are respectively rotatably arranged on the measuring support through a rotating shaft, the rotating shaft divides the lever rocker arms into an upper section and a lower section, the length of the upper section is greater than that of the lower section, the two lever rocker arms are obliquely arranged in a V shape, the measuring head attached to the side edge of the bamboo chip is arranged on the inner side of the lower end of each lever rocker arm, the electronic ruler is arranged between the upper ends of the two lever rocker arms, one end of the electronic ruler is fixed on the inner side of one lever rocker arm, the inner side of the other lever rocker arm is provided with a contact block corresponding to the other end of the electronic ruler, the contact surface of the. The invention reduces the cost of the measuring device, is convenient for directly measuring the bamboo chips on line and is convenient for production and application.
Description
Technical Field
The invention particularly relates to a device for monitoring bamboo chip edge deletion on line.
Background
Bamboo is a resource which grows fast and is rich in resources, and bamboo chips are widely applied to raw materials such as floors, furniture, artware and the like. Processing bamboos into rectangular bamboo chips, splicing the bamboo chips into a bamboo board with a certain specification, wherein when the width of each bamboo chip is provided with a missing edge (namely one bamboo chip, the width variation range of the bamboo chip is more than 0.05-0.1 mm in the whole length range), the bamboo board is spliced into the board, the quality grade of the bamboo board is reduced by the generated gap, and therefore the width of each bamboo chip needs to be checked; whether detect the bamboo chip at present and lack the limit and all lean on artifical eyes to observe, its inefficiency, the requirement of measurement personnel eyesight is high moreover, and the personnel most beyond 30 years old are unable to be competent, moreover in testing process, can produce the condition such as lou examine according to measurement personnel's different energy.
Disclosure of Invention
The invention aims to provide a device for monitoring bamboo chip edge deletion on line.
The technical scheme adopted by the invention is as follows:
the utility model provides a device of on-line monitoring bamboo chip lack limit, it includes the lever rocking arm, measure the support, the gauge head, the electronic ruler, two lever rocking arms are installed in measuring the support through pivot rotation respectively, the pivot divide into upper segment and hypomere with the lever rocking arm, the length of upper segment is greater than the length of hypomere, two lever rocking arms are the slope setting of V word, the lower extreme inboard of lever rocking arm is equipped with the gauge head of pasting tight bamboo chip side, the electronic ruler is installed between the upper end of two lever rocking arms, electronic ruler one end is fixed in the inboard side of a lever rocking arm, the inboard side of another lever rocking arm corresponds the electronic ruler other end and is equipped with the contact piece, the contact surface of contact piece and the electronic ruler other end is an inclined plane, the inclined plane is from inside to outside slant down dip.
Further, the length ratio of the upper section and the lower section of the lever rocker arm is 2:1.
Further, the length of the lever rocker arm is 300 mm.
Furthermore, the electronic ruler is provided with a spring which props the upper end of the lever rocker arm open towards two sides.
Furthermore, a deep groove bearing is sleeved on the outer side of the measuring head, and the outer ring of the deep groove bearing is attached to the side edge of the bamboo chip.
Furthermore, the deep groove bearing is sleeved on the measuring head through a clamping ring.
According to the technical scheme, the bamboo strips are discharged from the middle of the measuring heads of the left lever rocker arm and the right lever rocker arm. Because the bamboo strips have horizontal force to the measuring head when passing through the measuring head, the lever rocker arm can rotate at a certain angle. The electronic ruler is pressed inwards along with the rotation of the lever rocker arm, so that the measuring head of the electronic ruler has certain displacement. And measuring the voltage change by combining with the working principle of the linear displacement electronic ruler, so as to indirectly obtain the related data of the linear width of the bamboo splints and judge whether the edge is missing and the number of the missing edge exists. The invention reduces the cost of the measuring device, is convenient for directly measuring the bamboo chips on line and is convenient for production and application.
Drawings
The invention is described in further detail below with reference to the accompanying drawings and the detailed description;
FIG. 1 is a schematic structural diagram of an apparatus for on-line monitoring of bamboo chip edge deletion according to the present invention;
FIG. 2 is a schematic structural diagram of a measuring head of the device for on-line monitoring of bamboo chip edge deletion according to the present invention;
FIG. 3 is a schematic view of a bamboo chip edge defect detection device without an inclined plane structure;
FIG. 4 is a schematic diagram of the detection principle of the device for on-line monitoring of bamboo chip edge deletion according to the present invention;
FIG. 5 is a second schematic view of the detection principle of the device for on-line monitoring of bamboo chip edge deletion according to the present invention;
fig. 6 is a partially enlarged schematic view of fig. 5.
Detailed Description
As shown in fig. 1 or fig. 2, the invention discloses a device for on-line monitoring of bamboo chip edge deletion, which comprises two lever rocker arms 1, a measuring support 2, a measuring head 3 and an electronic ruler 4, wherein the two lever rocker arms 1 are respectively rotatably mounted on the measuring support 2 through a rotating shaft 5, the rotating shaft 5 divides the lever rocker arms 1 into an upper section and a lower section, the length of the upper section is larger than that of the lower section, the two lever rocker arms 1 are obliquely arranged in a V shape, the measuring head 3 attached to the side edge of the bamboo chip is arranged on the inner side of the lower end of the lever rocker arms 1, the electronic ruler 4 is mounted between the upper ends of the two lever rocker arms 1, one end of the electronic ruler 4 is fixed on the inner side edge of one lever rocker arm 1, the inner side edge of the other lever rocker arm 1 is provided with a contact block 6 corresponding to the other end of the electronic ruler 4.
Further, the length ratio of the upper section and the lower section of the lever rocker arm 1 is 2:1.
Further, the length of the lever arm 1 is 300 mm.
Further, the electronic ruler 4 is provided with a spring which expands the upper end of the lever rocker arm 1 towards two sides.
Furthermore, a deep groove bearing 7 is sleeved outside the measuring head 3, and the outer ring of the deep groove bearing 7 is attached to the side edge of the bamboo chip.
Furthermore, the deep groove bearing 7 is sleeved on the measuring head 3 through a clamping ring.
The following is a detailed description of the specific principles of the present invention:
the total length of the lever rocker arm 1 is 300mm, and the magnification factor measured is 2 times of the defect size, so the proportion of the upper section and the lower section of the lever rocker arm 1 is 2:1, namely the length of the upper half part is 200mm, and the length of the lower half part is 100 mm.
The lower end of the lever rocker arm 1 is of a bearing structure, and the reason that the tail end of a rocker arm lever provided with the deep groove ball bearing in a wear-reducing mode has a certain inclination angle is that the defects of bamboo strips are generally triangular block-shaped defects according to actual production condition experience. Therefore, in order to be more closely attached to the defect surface of the bamboo strip, the deep groove ball bearing at the position of the measuring head 3 is installed by adopting an inclined angle. Because if the bamboo strips directly pass through the tail end of the lever rocker arm 1, the friction resistance is large, and the long-term friction with large resistance causes large abrasion of the measuring head 3. The measuring head 3 may damage the originally qualified bamboo strips in the measuring process while increasing the measuring accuracy error after being worn. Therefore, the reason for installing the two deep groove ball bearings is to reduce the friction force when the bamboo splints pass through, and a small amount of friction force is inevitable after the deep groove ball bearings are installed, so that the outer rings of the bearings are abraded to a certain extent after long-term use. But the bearing is a standard part and here a snap ring is used to secure the bearing, so that the operation is simple and convenient when the bearing needs to be replaced at the probe 3.
The upper end of the lever rocker arm 1 is provided with a sensor electronic ruler 4 for measurement, the electronic ruler 4 is provided with a spring, the upper end of the lever rocker arm 1 is opened towards two sides, the measuring head 3 at the lower end is tightly pressed with the bamboo chips, the bamboo chips pass through the measuring head 3 at an even speed, the edges of the bamboo chips are contacted with the measuring head 3, and if the size of the edges is changed, the measuring head 3 and the part of the sensor electronic ruler 4 for measurement arranged at the upper end of the lever rocker arm 1 are also changed.
And the contact block 6 is arranged at the upper part of one lever rocker arm 1, the contact surface of the contact block 6 and the electronic ruler 4 is an inclined surface, and the arrangement of the inclined surface plays an important role in measuring the edge deletion value.
The specific explanation is as follows: as shown in one of fig. 4 to 6, an included angle between the inclined plane and the horizontal line is a degrees, a distance from the measuring head 3 to the rotation fulcrum of the measuring bracket 2 is L, and a distance from the sensor electronic ruler 4 to the rotation point of the measuring bracket 2 is 2L. When the numerical value of the missing edge is x, the angle that the measuring head 3 rotates around the rotating point of the measuring support 2 is b degrees, and the angle b is also small because the value x of the missing edge is small. At this time, the movement of the measuring point is about rotation around the rotation fulcrum, so when the measuring point moves about 2x in the horizontal direction, the moving distance in the vertical direction is y, and the value of y is y =2L-2lcos (b), where 2L is the distance (i.e. radius) from the measuring point to the rotation fulcrum when no missing edge occurs, and b is the angle of rotation of the measuring head 3 around the rotation point of the measuring support 2, as shown in fig. 4.
As shown in fig. 3, if the contact block 6 has no slope, that is, the contact block 6 is a rectangular block, the moving distance measured by the sensor electronic ruler 4 may be equal to about 2x and less than 2x, and the specific reduced value is y × tg (b), which is 2x-y × tg (b), where x is a missing value and y is: the distance over which the measuring point moves in the vertical direction when it moves about 2x in the horizontal direction, b being the angle over which the measuring head 3 rotates about the rotation point of the measuring carriage 2. In this case, if the edge defect is to be sensed, the accuracy of the sensor is required to be high.
When the contact surface of the contact block 6 is an inclined surface, due to the rotation of the lever rocker arm 1, the contact point of the electronic ruler 4 and the contact block 6 slides along the inclined surface, and due to the change of the contact point, the stroke of the electronic ruler 4 is enlarged under the condition of the same angle b, the measured distance is increased to be y ctg (a), and the actual value is 2x + y ctg (a), wherein x is a missing value, and y is: when the measuring point moves about 2x in the horizontal direction, the distance of the measuring point moving in the vertical method is a, the angle between the measured inclined plane and the horizontal line is the same as the included angle between the measured inclined plane and the horizontal line, the included edge is enlarged at the measuring end of the sensor, and the requirement on the measuring sensor is lowered. As shown in fig. 5 and 6, in fig. 6, the broken line represents a measurement without a skew angle.
According to the technical scheme, the bamboo strips are discharged from the middle of the measuring heads 3 of the left and right lever rocker arms 1. When the bamboo strips pass through the measuring head 3, the measuring head 3 is stressed horizontally, so that the lever rocker arm 1 can rotate at a certain angle. The electronic ruler 4 is pressed inwards along with the rotation of the lever rocker arm 1, so that the measuring head 3 of the electronic ruler 4 has certain displacement. And then the voltage change is measured by combining with the working principle of the linear displacement electronic ruler 4, so that the related data of the linear width of the bamboo splints can be indirectly obtained, and whether the edge defect exists or not and the edge defect number exists are judged. The invention reduces the cost of the measuring device, is convenient for directly measuring the bamboo chips on line and is convenient for production and application.
Claims (6)
1. The utility model provides a device of on-line monitoring bamboo chip lacks limit which characterized in that: the measuring device comprises lever rocker arms, a measuring support, a measuring head and an electronic ruler, wherein the two lever rocker arms are respectively rotatably installed on the measuring support through a rotating shaft, the rotating shaft divides the lever rocker arms into an upper section and a lower section, the length of the upper section is greater than that of the lower section, the two lever rocker arms are arranged in a V-shaped inclined manner, the measuring head attached to the side edge of a bamboo sheet is arranged on the inner side of the lower end of each lever rocker arm, the electronic ruler is installed between the upper ends of the two lever rocker arms, one end of the electronic ruler is fixed on the inner side of one lever rocker arm, the inner side of the other lever rocker arm is provided with a contact block corresponding to the other end of the electronic ruler, the contact block and the contact surface of the other.
2. The device for on-line monitoring the bamboo chip lacking edge of claim 1, wherein: the length ratio of the upper section to the lower section of the lever rocker arm is 2:1.
3. The device for on-line monitoring the bamboo chip lack edge according to the claim 1 or 2, characterized in that: the length of the lever rocker arm is 300 mm.
4. The device for on-line monitoring the bamboo chip lacking edge of claim 1, wherein: the electronic ruler is provided with a spring which props the upper end of the lever rocker arm to two sides.
5. The device for on-line monitoring the bamboo chip lacking edge of claim 1, wherein: the measuring head is sleeved with a deep groove bearing, and the outer ring of the deep groove bearing is attached to the side edge of the bamboo chip.
6. The device of claim 5, wherein the device for on-line monitoring of bamboo chip edge deletion comprises: the deep groove bearing is sleeved on the measuring head through a clamping ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811360849.4A CN109470117B (en) | 2018-11-15 | 2018-11-15 | Device for on-line monitoring of bamboo chip edge lack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811360849.4A CN109470117B (en) | 2018-11-15 | 2018-11-15 | Device for on-line monitoring of bamboo chip edge lack |
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| Publication Number | Publication Date |
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| CN109470117A CN109470117A (en) | 2019-03-15 |
| CN109470117B true CN109470117B (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811360849.4A Active CN109470117B (en) | 2018-11-15 | 2018-11-15 | Device for on-line monitoring of bamboo chip edge lack |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104950128A (en) * | 2015-06-12 | 2015-09-30 | 福建工程学院 | Intelligent bamboo strip chipped edge detection device provided with ultrasonic motor |
| CN205027677U (en) * | 2015-10-21 | 2016-02-10 | 国家林业局北京林业机械研究所 | Rectangle bamboo chip truncation defect detecting device |
| CN108680499A (en) * | 2018-05-21 | 2018-10-19 | 中测测试科技（杭州）有限公司 | A kind of crawler type detection bamboo chip lacks the device and method on side |
| CN108776353A (en) * | 2018-06-06 | 2018-11-09 | 温州雏鹰科技有限公司 | A kind of scarce side device of intelligent measurement bamboo chip |
-
2018
- 2018-11-15 CN CN201811360849.4A patent/CN109470117B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104950128A (en) * | 2015-06-12 | 2015-09-30 | 福建工程学院 | Intelligent bamboo strip chipped edge detection device provided with ultrasonic motor |
| CN205027677U (en) * | 2015-10-21 | 2016-02-10 | 国家林业局北京林业机械研究所 | Rectangle bamboo chip truncation defect detecting device |
| CN108680499A (en) * | 2018-05-21 | 2018-10-19 | 中测测试科技（杭州）有限公司 | A kind of crawler type detection bamboo chip lacks the device and method on side |
| CN108776353A (en) * | 2018-06-06 | 2018-11-09 | 温州雏鹰科技有限公司 | A kind of scarce side device of intelligent measurement bamboo chip |
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| CN109470117A (en) | 2019-03-15 |
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