CN214333681U - A filter rod circumference laser detection assembly - Google Patents
A filter rod circumference laser detection assembly Download PDFInfo
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- CN214333681U CN214333681U CN202120327341.5U CN202120327341U CN214333681U CN 214333681 U CN214333681 U CN 214333681U CN 202120327341 U CN202120327341 U CN 202120327341U CN 214333681 U CN214333681 U CN 214333681U
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- 238000005259 measurement Methods 0.000 abstract description 8
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- 238000004519 manufacturing process Methods 0.000 abstract description 4
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- 238000004140 cleaning Methods 0.000 description 3
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Abstract
本实用新型涉及卷烟滤棒检测技术领域，更具体地，涉及一种滤棒圆周激光检测组件。具体包括激光检测器以及同轴且依次设置的配气座、导气块、检测座，所述导气块一端卡接于检测座，另一端穿插于配气块；所述导气块的轴心挖空有用于传送滤棒的过孔；所述检测座为空心结构，检测座轴向两端留有进出口；所述检测座的径向侧面设有若干透视面，所述激光检测器绕检测座径向设置，且对应各透视面。本实用新型用激光检测器对滤棒圆周进行非接触检测，易于控制，而且检测精度高，响应速度快，满足高速生产下对滤棒圆周的测量。
The utility model relates to the technical field of cigarette filter rod detection, in particular to a filter rod circumference laser detection assembly. Specifically, it includes a laser detector, a gas distribution seat, an air guide block, and a detection seat that are coaxially and sequentially arranged. One end of the air guide block is clamped to the detection seat, and the other end is inserted into the gas distribution block; the shaft of the air guide block is The core is hollowed out with through holes for transmitting filter rods; the detection seat is a hollow structure, and there are inlets and outlets at both ends of the detection seat in the axial direction; the radial side of the detection seat is provided with a number of perspective surfaces, and the laser detector It is arranged radially around the detection base and corresponds to each perspective surface. The utility model uses a laser detector to perform non-contact detection on the circumference of the filter rod, which is easy to control, has high detection accuracy and fast response speed, and meets the measurement of the circumference of the filter rod under high-speed production.
Description
Technical Field
The utility model relates to a cigarette filter rod detects technical field, more specifically relates to a filter rod circumference laser detection subassembly.
Background
The circumference of the filter stick is an important physical index of a cigarette product, and the excessive fluctuation of the circumference of the filter stick can directly cause the problems of cigarette air leakage, filter tip falling, wrinkles at the joint part and the like of the cigarette, so the circumference of the filter stick is a key control index of the filter stick forming process and is a difficult point of control. The main power model KDF2 of the filter rod forming machine uses an air pressure type circumference detection method, the circumference of a filter rod is measured by the aid of the air pressure detection method, an air passage is divided into reference air pressure and measurement air pressure, when the filter rod passes through a measurement nozzle, the size of the circumference of the filter rod is reflected by the size of air passing through the measurement nozzle, and the conditions of low precision, poor stability, large delay and the like exist. And because the KDF2 forming machine set has a compact structure and extremely limited space size, the installation space requirement of the traditional photoelectric filter stick circumference detection device cannot be met.
Chinese patent No. CN104432497B, 2016-05-11, discloses an online detection control device and method for cigarette and filter stick circumferences, which adopts air pressure to detect the filter stick circumference, can perform real-time closed-loop control and adjustment on detection air, and has a cleaning function. However, measurement signals are easy to intervene, air pressure and circumference conversion is nonlinear conversion, shutdown maintenance is often needed, the problems of low equipment operation efficiency, high consumption of raw materials and auxiliary materials and the like are caused, and the improvement of the circumference stability of the filter stick is severely restricted.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome above-mentioned prior art the defect, provide a filter rod circumference laser detection subassembly, adopt laser detector to carry out non-contact detection to the filter rod circumference, easily control detects the precision height moreover, and response speed is fast, satisfies the measurement to the filter rod circumference under the high-speed production.
In order to solve the technical problem, the utility model discloses a technical scheme is:
a laser detection assembly for the circumference of a filter stick comprises a laser detector, and a gas distribution seat, a gas guide block and a detection seat which are coaxial and sequentially arranged, wherein one end of the gas guide block is clamped in the detection seat, and the other end of the gas guide block is inserted in the gas distribution block; a through hole for conveying the filter stick is hollowed in the axis of the air guide block; the detection seat is of a hollow structure, and an inlet and an outlet are reserved at two axial ends of the detection seat; the radial side of the detection seat is provided with a plurality of perspective surfaces, and the laser detector is radially arranged around the detection seat and corresponds to each perspective surface. The size of the whole assembly is small and exquisite, and the requirement of installation space of a KDF2 forming machine set is met. And when the filter stick is detected, the filter stick sequentially passes through the detection seat, the air guide block and the air distribution seat, wherein the filter stick is detected in the detection seat, and the laser detector performs non-contact detection on the circumference of the filter stick through the perspective surface to obtain the circumference value of the filter stick.
Furthermore, the detection seat is provided with four perspective surfaces, and the included angle of each perspective surface is a right angle; the number of the laser detectors is two, and the two laser detectors are arranged in a cross shape; each laser detector comprises a transmitter and a receiver which are matched, and the transmitter and the receiver are respectively positioned on the outer sides of the two opposite perspective surfaces.
When the filter stick is positioned between the emitter and the receiver, the parallel light beams vertically irradiate the filter stick to form a shadow on the CCD receiver, the size of the shadow area formed by the diameter change of the filter stick can be accurately measured by the linear arrangement light receiving assembly CCD, and the amplifier receives an optical signal from the CCD and converts the optical signal into an analog electrical signal related to the diameter of the filter stick.
Because the filter stick is not a standard perfect circle, the roundness of the filter stick is influenced by pressure, and in order to improve the detection precision of the circumference of the filter stick and avoid the problem of laser interference caused by laser with single wavelength, a detection scheme of two groups of laser detectors is adopted, the two groups of laser detectors are symmetrically distributed on the same radial surface in a cross shape to form a non-contact measurement scheme, the laser detector in the horizontal direction detects the diameter value A of the filter stick, and the laser detector in the vertical direction detects the diameter value B of the filter stick. The roundness of the filter stick is calculated by calculating the difference (A-B) between A and B, and the circumference value of the filter stick is calculated by calculating the average value of the sum (A + B) of A and B.
Furthermore, the laser detector is a laser sensor, the perspective surface comprises a perspective hole and perspective glass covering the perspective hole, and the perspective hole is opposite to the axis position of the detection seat. The perspective holes are primary holes on the detection seat and are aligned with the axis of the detection seat, so that the filter stick is located in the detection area when passing through. Meanwhile, the perspective glass is installed and fixed on the detection seat and covers the perspective hole, so that light can conveniently penetrate through the detection seat to complete the detection task.
Furthermore, the air distribution seat is provided with a plurality of air inlets, the air guide block is provided with an air guide hole leading to the detection seat, and the air inlets are communicated with the air guide hole. Dust is piled up and is seen through the detection mode to laser formula and has very big influence, and it is very necessary in time to clean the detection site. An air cavity is formed in the air distribution seat, compressed air enters through an air inlet of the air distribution seat, and the compressed air in the air cavity is blown to the inner surface of the perspective glass of the detection seat through four air guide holes of the air guide block to clean the perspective glass so as to prevent dust accumulation from causing detection distortion.
Furthermore, the air guide block comprises a clamping section, a transition section and a locking section which are connected in sequence, the diameter of the locking section is smaller than that of the transition section, and the clamping section is clamped with the detection seat; the air guide hole penetrates through the clamping section and the transition section simultaneously and is parallel to the through hole. The transition section and the locking section are inserted into the gas distribution seat.
Furthermore, the clamping stage, the transition section and the locking section are integrally formed.
The air distribution seat is arranged on the side, far away from the air guide block, of the air distribution seat; the air guide block integrally penetrates through the air distribution seat, and the fastening piece and the locking section are detachably connected and locked. The fastener axially secures the entire component.
Further, the fastener is the staple bolt structure. The fastener holds tightly the locking section of air guide block.
Furthermore, an inlet and an outlet of one side of the detection seat, which is far away from the air guide block, are in a conical horn mouth shape, and the detection seat is provided with an exhaust hole. An inlet and an outlet at the front end of the detection seat are designed into a conical bell mouth shape and used for guiding the filter stick to enter a detection area and a through hole.
Further, the perspective glass is quartz glass.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a filter rod circumference laser detection subassembly adopts laser detector to carry out non-contact detection to the filter rod circumference, and easily control detects for atmospheric pressure, and it is also higher to detect the precision. Generally, two groups of laser detectors which are symmetrically distributed in a cross shape are used for carrying out non-contact detection on the circumference of the filter stick, so that the accuracy of the circumference detection of the filter stick is improved, a more stable circumference control effect of the filter stick is achieved, and the size of a detection assembly is small and exquisite, so that the requirement of installation space of a KDF2 forming machine set is met.
Drawings
Fig. 1 is a schematic view of the overall structure of embodiment 1 of the present invention.
Fig. 2 is an exploded view of the structure of embodiment 1 of the present invention.
Fig. 3 is a schematic diagram of detection of the laser detector in embodiment 1 of the present invention.
The device comprises a laser detector 1, an air distribution seat 2, an air guide block 3, a detection seat 4, a fastener 5, a filter stick 6, an emitter 11, a receiver 12, an air inlet 21, a through hole 31, an air guide hole 32, a clamping section 301, a transition section 302, a locking section 303, an inlet and an outlet 41 and a perspective surface 42.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", "long", "short", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limiting the present patent, and those skilled in the art will understand the specific meaning of the terms according to their specific circumstances.
The technical solution of the present invention is further described in detail by the following specific embodiments in combination with the accompanying drawings:
examples
As shown in fig. 1-2, the present embodiment provides a filter stick circumference laser detection assembly, which includes a laser detector 1, and a gas distribution base 2, a gas guide block 3, and a detection base 4 that are coaxially and sequentially disposed, where one end of the gas guide block 3 is clamped with the detection base 4, and the other end is inserted into the gas distribution block.
The detection seat 4 is of a hollow structure, the inlet and outlet 41 is reserved at two axial ends of the detection seat 4, and the inlet and outlet 41 at one side far away from the air guide block 3 is in a conical bell mouth shape so as to guide the filter stick 6 to enter the detector.
Meanwhile, four perspective surfaces 42 are arranged on the radial side surface of the detection seat 4, and the included angle of each perspective surface 42 is a right angle. Specifically, the perspective surface 42 includes a perspective hole and a perspective glass covering the perspective hole, the perspective hole is opposite to the axis position of the detection seat 4, the perspective glass is selected from quartz glass, and the perspective glass is installed and fixed on the detection seat 4 to cover the perspective hole.
Further, the laser detectors 1 are two laser sensors, and the two laser detectors 1 are arranged in a cross shape on the same radial surface, that is, the laser detectors 1 are radially arranged around the detection base 4 and correspond to the perspective surfaces 42. Specifically, each laser detector 1 includes the emitter 11 and the receiver 12 which are coupled, and the emitter 11 and the receiver 12 are respectively located outside the two opposite perspective surfaces 42, as shown in fig. 3, and the emitter 11 and the receiver 12 can be smoothly coupled due to the light transmittance of the see-through glass, as shown in fig. 3.
The laser detector 1 is a high-speed and high-precision distance measuring device, is an existing common photoelectric sensor component, and comprises a parallel light emitter 11 and a CCD receiver 12, wherein laser emitted by a laser source of the emitter 11 is reflected and forms continuous parallel light beams through a lens, when a filter stick 6 is positioned between the emitter 11 and the receiver 12, the parallel light beams vertically irradiate the filter stick 6 to form a shadow on the CCD receiver 12, a linear arrangement light receiving assembly CCD can accurately measure the size of the shadow area formed by the diameter change of the filter stick 6, and an amplifier receives a light signal from the CCD and converts the light signal into an analog electric signal related to the diameter of the filter stick 6.
Because the filter stick 6 is not a standard perfect circle, the roundness of the filter stick is affected by pressure, and in order to improve the precision of the detection of the circumference of the filter stick 6, the embodiment adopts a detection scheme of two groups of laser detectors 1, and the two groups of laser detectors 1 are symmetrically distributed on the same radial plane in a cross manner to form a non-contact measurement scheme, for example, the laser detector 1 in the horizontal direction measures the diameter value A of the filter stick 6, the laser detector 1 in the vertical direction measures the diameter value B of the filter stick 6, the roundness of the filter stick 6 is calculated by calculating the difference (A-B) between A and B, and the circumference value of the filter stick 6 is calculated by calculating the average value of the sum (A + B) of A and B, thereby well solving the problem of detection errors caused by the poor roundness of the filter stick 6.
The scheme adopts a laser detection technology to replace the original air pressure type detection technology, and has the characteristics of high efficiency, timeliness and high precision. In the embodiment, a non-contact laser sensor, namely a kirschner IG-010 laser sensor, which meets the installation space of the sensor is selected, the IG-010 laser sensor consists of 1 emitter 11 and 1 receiver 12, a shadow is left on the receiver 12 after a light beam emitted by an emitting end is blocked by the filter stick 6 by utilizing an outer diameter detection mode, and a receiving end calculates the area of the shadow to obtain the diameter value of the filter stick 6. The measuring range of the IG-010 laser sensor is 0-10mm, the measuring precision is 5 mu m, the sampling period is 980 mu s, and the laser source emits multiband laser (with the wavelength of 660nm), so that the problem of laser interference caused by laser with single wavelength can be effectively solved, and the requirement of measuring the circumference of the filter stick 6 under high-speed production can be met. In addition, the amplifier is one of the common components, the matched IG-1000 is selected in the embodiment, the fastest response time (judgment output) can reach 1.96ms, the linear detection precision is +/-28 microns, the circumference is converted into 0.087mm, and the precision value meets the production requirement under the condition that the equipment runs at a high speed. Through setting, the amplifier can output analog quantity signals of 0-5V, 1-5V, 4-20mA and the like to the PLC for processing.
In addition, a through hole 31 for conveying the filter stick 6 is hollowed in the axis of the air guide block 3, the filter stick 6 enters the through hole 31 from the detection seat 4 to be continuously conveyed, specifically, the air guide block 3 comprises a clamping section 301, a transition section 302 and a locking section 303 which are sequentially connected and integrally formed, the diameter of the locking section 303 is smaller than that of the transition section 302, the transition section 302 and the locking section 303 are inserted into the air distribution seat 2 in a penetrating manner, and the clamping section 301 is clamped with the detection seat 4. The air-guide hole 32 penetrates through the clamping section 301 and the transition section 302 simultaneously and is parallel to the through hole 31.
In order to prevent the impurities or dust in the inspection seat 4 from accumulating on the perspective surface 42, it is necessary to clean the inspection portion in time, and the present embodiment adopts the air flow cleaning. The air distribution base 2 is provided with a plurality of air inlet holes 21, the air guide block 3 is provided with four air guide holes 32 leading to the detection base 4, and the air inlet holes 21 and the air guide holes 32 are communicated in the cavity of the air distribution base 2. In addition, the detection seat 4 is also provided with an exhaust hole, so that gas can be conveniently exhausted. The light path of the laser detector 1 penetrates through the perspective surface 42, the perspective surface 42 comprises an oval perspective hole, and perspective glass made of quartz materials covers the perspective hole, so that light can penetrate through the detection seat 4 to complete a detection task, and dust can be prevented from entering and polluting the perspective surface 42. The structure of the detection seat 4 can be quickly disassembled, and the inner surface of the perspective glass can be conveniently cleaned manually.
Four air inlets 21 have been designed to distribution seat 2, at the inside air cavity that forms of distribution seat 2, compressed air gets into through the air inlet 21 of distribution seat 2, and compressed air in the air cavity blows on the perspective glass internal surface that detects seat 4 through four air guide hole 32 of air guide block 3, cleans perspective glass to prevent that the dust from piling up and causing the detection distortion. The gas distribution base 2 is used as a supporting point for fixing the whole detection assembly and is clamped and fixed by an additional fastening plate.
Preferably, this embodiment further includes a fastening member 5 in a hoop structure, and the fastening member 5 is disposed on a side of the air distribution base 2 away from the air guide block 3. The whole air guide block 3 is basically sleeved in the air distribution seat 2, the locking section 303 of the air guide block 3 penetrates through the air distribution seat 2, and the locking section 303 is tightly held by the fastening piece 5, so that the whole component is axially fixed.
Dust is piled up and is seen through the detection mode to the laser formula and has very big influence, and it is very necessary to detect inside the seat 4 in time to clean. According to the scheme, the oval perspective hole is formed in the light path of the laser detector 1, and the quartz glass covers the light path, so that light can penetrate through the perspective surface 42 to complete a detection task, and dust can be prevented from polluting the mirror surface of the laser sensor. The air guide block 3 is provided with four air guide holes 32 for cleaning air paths, compressed air enters the detection seat 4 through the air distribution seat 2 and the air guide holes 32, and then the inner surface of quartz glass is cleaned to prevent dust accumulation from causing detection distortion.
In the detailed description of the embodiments, various technical features may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120327341.5U CN214333681U (en) | 2021-02-04 | 2021-02-04 | A filter rod circumference laser detection assembly |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120327341.5U CN214333681U (en) | 2021-02-04 | 2021-02-04 | A filter rod circumference laser detection assembly |
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| CN214333681U true CN214333681U (en) | 2021-10-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115200486A (en) * | 2022-09-19 | 2022-10-18 | 菏泽鲁信光学科技有限公司 | Radial measuring assembly of optical lens |
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2021
- 2021-02-04 CN CN202120327341.5U patent/CN214333681U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115200486A (en) * | 2022-09-19 | 2022-10-18 | 菏泽鲁信光学科技有限公司 | Radial measuring assembly of optical lens |
| CN115200486B (en) * | 2022-09-19 | 2023-01-31 | 菏泽鲁信光学科技有限公司 | Radial measuring assembly of optical lens |
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