A positioning device for a cigarette butt loose head detector

Abstract

The present invention provides a positioning device for a cigarette butt loosening detector, belonging to the technical field of tobacco detection equipment. The positioning device for the cigarette butt loosening detector includes a lower fixing member and an upper fixing member; the lower fixing member includes a lower fixing block, a first connecting surface and a distance detector fixing surface, and the lower fixing block is located below the lower fixing member; the first connecting surface faces the upper fixing member and the front of the lower fixing member; the distance detector fixing surface faces the opposite direction of the upper fixing member and the back of the lower fixing member; a distance detector is fixed on the laser distance sensor; the second connecting surface can be detachably connected to the first connecting surface by buckling, and a buckling group is arranged behind the second connecting surface. This invention can solve the problems of inaccurate fixed installation position and too long debugging time of the fixed equipment for the cigarette butt loosening detector.

Description

Technical Field

[0001] The present invention belongs to the technical field of tobacco detection equipment, and specifically relates to a positioning device for a cigarette loose head detector. Background Art

[0002] During the process of cigarette making by a cigarette making and tipping unit, the cigarette will experience processes such as negative pressure adsorption, friction, centrifugal movement, and turning operation inside the machine, which will cause the tobacco shreds at the ignition end of the cigarette to fall out, resulting in the problem of too low filling degree at the ignition end (loose head problem), forming a quality defect of the product. To ensure the quality of cigarettes, before packing in small boxes (20 cigarettes), the production enterprise needs to detect the filling degree of the ignition end of the cigarette and remove the non-compliant cigarettes.

[0003] Existing detectors are mostly infrared detectors, that is, a parallel infrared light beam with a diameter of about 3-4 mm is emitted to the plane of the ignition end of the cigarette; 4 receiving ends are evenly distributed around the ignition end to receive the infrared light reflected by the tobacco shreds at the ignition end; the filling degree is determined by the intensity of the received light. The position schematic diagram is as Figure 1 shown, and the detection principle diagram is as Figure 2 shown.

[0004] In order to detect the filling degree of the ignition end of the cigarette, the process requires that the infrared detector can be installed in cooperation with the running position of the cigarette on the production line during installation. The ideal mechanical vertical distance between the emitting end and the receiving end of the infrared photoelectric detector is 6.5 mm, that is, the plane of the ignition end of the cigarette is 6.5 mm away from the infrared light emitting end face, so as to ensure that the effective detection depth of the tobacco shreds filled in the ignition end is about 1.8 mm. The mechanical dimensions of the emitting end and the receiving end of the infrared light detector are as Figure 3 shown.

[0005] Due to the very compact design of the whole cigarette making machine and extremely limited installation space, the installation and positioning of the infrared loose head detector do not adopt the direct measurement method, but a mixed method of using a positioning tooling plus electrical detection output signal measurement; the existing installation method is to use a positioning tooling parallel to the axial direction of the cigarette to be measured for axial positioning, then estimate the installation distance of about 6.5 mm with a gauge block, and finally place a standard test cigarette at the detection position, and use a multimeter to measure the output value of the infrared photoelectric signal detection circuit, and manually fine-tune the distance to meet the detection requirements. Due to the existence of an infrared light diode drive circuit and an infrared light receiving diode photoelectric conversion signal conditioning circuit in the detection circuit, and the conditioning circuit includes external setting components such as gain adjustment and DC component adjustment of the received signal, there are the same output electrical signals near the ideal installation position, and there are three states: a large gain value and a small drive current; a small gain value and a large drive current; both the gain value and the drive current are suitable; the detector needs both the gain value and the drive current to be in a suitable state to give correct feedback on cigarettes of different qualities and different positions.

[0006] The existing positioning equipment of the loose end detector for cigarettes needs to be manually estimated and positioned, and often out of tolerance. It is necessary to repeatedly adjust the position and set external components to meet the detection requirements for production. However, the installation position cannot be guaranteed to be within the range of 6.5mm, ±0.05mm, resulting in inaccurate installation position of the loose end detector and too long debugging time, affecting normal production. Summary of the invention

[0007] In view of this, the present invention provides a cigarette loose end detector positioning device, which is particularly suitable for models such as PROTOS70, PROTOS80, PROTOS90, PROTOS100, ZJ117, etc., and can effectively solve the problems of inaccurate positioning and installation of the cigarette loose end detector positioning equipment, and troublesome installation and disassembly, thereby shortening the time for accurate debugging of the installation position, avoiding affecting normal production, and avoiding losses to the enterprise.

[0008] The present invention is achieved in that:

[0009] The present invention provides a cigarette loose-end detector positioning device, comprising a lower fixing member and an upper fixing member, wherein the lower fixing member is used to fix the detector bracket on the detection head bracket, and the upper fixing member is used to fix the infrared cigarette loose-end detector detection bracket;

[0010] Wherein, the lower fixing member comprises a lower fixing block, a first connecting surface and a distance detector fixing surface, the lower fixing block is located below the lower fixing member, and when the lower fixing member is fixed on the detection head bracket, the lower fixing block can abut against the lower wall of the detection head bracket; the first connecting surface faces the upper fixing member and the front side of the lower fixing member, and the distance between the bottom edge of the first connecting surface and the top side of the lower fixing block is equal to the thickness of the detection head bracket; the distance detector fixing surface faces the opposite direction of the upper fixing member and the back side of the lower fixing member; a laser distance sensor is fixed on the distance detector fixing surface;

[0011] The upper fixing part includes a second connecting surface and a snap-on group. The second connecting surface and the first connecting surface can be snap-on and plug-in connected. The second connecting surface is consistent in size with the first connecting surface. The snap-on group is arranged behind the second connecting surface. The snap-on group can cooperate with and be fixedly connected with the detection bracket of the infrared cigarette loose end detector.

[0012] On the basis of the above technical solution, the cigarette loose end detector positioning device of the present invention can also be improved as follows:

[0013] Wherein, the distance detector is a laser distance sensor, and the detection probe of the laser distance sensor is facing the filter end face of the cigarette to be tested.

[0014] The beneficial effects of adopting the above improvement scheme are as follows: By setting the laser distance sensor, when the lower fixing part moves to a required length from the filter tip end face of the cigarette to be measured to the lower fixing part, it can find the position faster and more accurately, without the need to take the measuring tool outside the device. The measuring method is simple, and the detector can be accurately installed according to the design requirements.

[0015] Further, the buckle group includes a side block of the detector bracket, an upper clamping corner of the detector bracket, and a mating surface of the detector bracket. The side block of the detector bracket is located on the side of the upper fixing part close to the detection bracket of the infrared cigarette loose-end detector and on the mating surface of the detector bracket. The inner wall length of the side block of the detector bracket is equal to the thickness of the side arm of the detection bracket of the infrared cigarette loose-end detector. The mating surface of the detector bracket is located between the upper clamping corner of the detector bracket and the side block of the detector bracket. The mating surface of the detector bracket has an inclination angle, and the inclination angle of the mating surface of the detector bracket can cooperate with the slope of the bottom fixing block of the detection bracket of the infrared cigarette loose-end detector. The upper clamping corner of the detector bracket is located at the top of the upper fixing part and above the mating surface of the detector bracket, and the upper clamping corner of the detector bracket can fit the apex of the bottom fixing block of the detection bracket of the infrared cigarette loose-end detector.

[0016] The beneficial effects of adopting the above improvement scheme are as follows: By setting the upper fixing part that can match the detector bracket, the upper clamping corner of the detector bracket can be hooked on the upper fixing part, the side block of the detector bracket can be hooked on the side arm at the top of the slope of the bottom fixing block of the detection bracket of the infrared cigarette loose-end detector, the mating surface of the detector bracket can be attached to the upper fixing part, so that the upper fixing part is fixed on the detector. Then, by magnetically attracting the lower fixing part to the upper fixing part, the lower fixing part and the upper fixing part are fixed to each other. Finally, by clamping the lower fixing part on the detection head bracket, the position of the detector bracket on the detection head bracket is fixed. Using this method to fix the detector bracket is convenient for disassembly, the device structure is simple, reducing the work complexity of the installation personnel, shortening the installation time, reducing the downtime, and one set of tooling can be adapted to multiple models, reducing the input cost.

[0017] Further, the first connection surface and the second connection surface are connected by magnetic snap-in connection. The magnetic snap includes a magnetic attraction column, a guide column, a magnetic attraction hole, and a guide hole. The magnetic attraction column and the guide column are arranged on the first connection surface. The magnetic attraction column is arranged at the center position of the first connection surface, and the guide column is arranged around the magnetic attraction column. The magnetic attraction hole and the guide hole are arranged on the second connection surface. The magnetic attraction hole is arranged at the center position of the second connection surface, and the guide hole is arranged around the magnetic attraction hole. The magnetic polarities of the magnetic attraction column and the guide column are opposite, and the sizes of the magnetic attraction column and the guide column match each other. When the first connection surface and the second connection surface are connected, the magnetic attraction column and the guide hole are in alignment, and the sizes of the guide column and the guide hole match each other.

[0018] The beneficial effects of adopting the above improvement scheme are as follows:

[0019] By providing the magnetic attraction column and the guide hole, when the lower fixing member and the upper fixing member are aligned, the direction can be fixed. By providing the magnetic attraction column and the guide hole, when the lower fixing member and the upper fixing member are aligned, it is easier to find the alignment point by relying on the magnetic attraction force, and the magnetic attraction method makes it convenient to disassemble the lower fixing member and the upper fixing member when they are combined.

[0020] Further, the fixed surface of the distance detector includes a limit stop and a fixing through hole. The limit stop is strip-shaped. The fixed surface of the distance detector is arranged on the side of the lower fixing member close to the cigarette to be measured. The fixing through hole is used to fix the laser distance sensor, and the fixing through hole is opened on the fixed surface of the distance detector.

[0021] The beneficial effects of adopting the above improvement scheme are as follows: By providing the limit stop, one side position of the laser distance sensor can be fixed, thereby restricting the position of the fixed laser distance sensor on the fixed surface of the distance detector.

[0022] Further, the fixing through hole is a long strip-shaped through hole.

[0023] The beneficial effects of adopting the above improvement scheme are as follows: By providing the fixing through hole in a long strip shape, when the laser distance sensor is fixed, it is convenient to adjust the position up and down to align with the filter tip end of the cigarette to be measured.

[0024] Further, the side clamping block of the detector bracket includes a horizontal plate and a vertical plate. The horizontal plate connects the mating surface of the detector bracket and the vertical plate. The length of the horizontal plate is equal to the thickness of the side arm of the infrared cigarette loose end detector detection bracket. The included angle between the horizontal plate and the vertical plate is between 90° and 120°.

[0025] The beneficial effects of adopting the above improvement scheme are as follows: By setting the angle between the horizontal plate and the vertical plate to be between 90° and 120°, compared with the 90° angle, the structure with a wider upper part and a narrower lower part makes it easier for the horizontal plate to be inserted into the side arm of the detection bracket of the infrared cigarette butt loosening detector.

[0026] Furthermore, the lower fixing block, the first connecting surface, and the distance detector fixing surface are integrally formed, and the second connecting surface, the detector bracket side block, the detector bracket upper corner, and the detector bracket mating surface are integrally formed.

[0027] Among them, a detection head bracket limiting mechanism is arranged on the upper surface of the lower fixing block.

[0028] Furthermore, the detection head bracket limiting mechanism is a spring ball.

[0029] The beneficial effects of adopting the above improvement scheme are as follows: By setting the detection head bracket limiting mechanism, it is easier for the lower fixing part to be stuck on the detection head bracket, and the position of the lower fixing part on the detection head bracket is also fixed.

[0030] Compared with the prior art, the beneficial effects of a positioning device for a cigarette butt loosening detector provided by the present invention are as follows:

[0031] By setting a laser distance sensor, when the lower fixing part moves to the required length from the filter tip end face of the cigarette to be measured to the lower fixing part, it can find the position faster and more accurately, without the need to take measurement tools outside the device. The measurement method is simple, and the detector can be accurately installed according to the design requirements; by setting an upper fixing part that can match the detector bracket, the upper corner of the detector bracket can be hooked on the upper fixing part, the side block of the detector bracket can be hooked on the slope top side arm of the bottom fixing block of the detection bracket of the infrared cigarette butt loosening detector, the mating surface of the detector bracket is attached to the upper fixing part, so that the upper fixing part is fixed on the detector. Then, by magnetically attracting the lower fixing part to the upper fixing part, the lower fixing part and the upper fixing part are fixed to each other, and then the lower fixing part is stuck on the detection head bracket, so that the position of the detector bracket on the detection head bracket is fixed. Using this method to fix the detector bracket is convenient for disassembly, the device structure is simple, reducing the work complexity of the installation personnel, shortening the commissioning and installation time, reducing the downtime, and one set of tooling can be adapted to multiple models, reducing the input cost. Description of the Drawings

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required to be used in the description of the embodiments of the present invention. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0033] Figure 1 Schematic diagram of the position of loose cigarette ends detected by infrared

[0034] Figure 2 Schematic diagram of the principle of detecting loose cigarette ends by infrared

[0035] Figure 3 Mechanical position diagram of the transmitting end and receiving end of the infrared cigarette end loosening detector

[0036] Figure 4 Schematic diagram of installation and detection

[0037] Figure 5 Schematic diagram of a positioning device for a cigarette end loosening detector provided by the present invention

[0038] Figure 6 Schematic diagram of the positioning points in a positioning device for a cigarette end loosening detector provided by the present invention

[0039] Figure 7 Schematic diagram of the detection bracket of the infrared cigarette end loosening detector

[0040] Figure 8 Schematic diagram of the installation of a positioning device for a cigarette end loosening detector provided by the present invention

[0041] In the drawings, the list of components represented by each reference numeral is as follows:

[0042] 11. Lower fixed clamp; 111. Detection head bracket limiting mechanism; 12. First connection surface; 121. Magnetic attraction column; 122. Guide column; 13. Distance detector fixed surface; 131. Limit stop; 132. Fixed through hole; 21. Second connection surface; 211. Magnetic attraction hole; 212. Guide hole; 22. Detector bracket side clamp; 221. Horizontal plate; 222. Vertical plate; 23. Detector bracket upper clamping angle; 24. Detector bracket mating surface; 25. Bracket buckle; 30. Laser distance sensor; 41. Infrared receiving end; 42. Infrared transmitting end; 43. Cigarette to be measured; 44. Infrared sensor housing; 51. Infrared parallel light path; 52. Infrared reflected light receiving light path. Detailed implementation manners

[0043] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0044] Accordingly, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0045] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0046] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

[0047] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0048] As Figure 5 shown, it is the first embodiment of a positioning device for a cigarette butt loosening detector provided by the present invention. In this embodiment, it includes a lower fixing member and an upper fixing member. The lower fixing member is used to fix the detector bracket on the detection head bracket, and the upper fixing member is used to fix the detection bracket of the infrared cigarette butt loosening detector.

[0049] Among them, the lower fixing member includes a lower fixing block 11, a first connecting surface 12, and a distance detector fixing surface 13. The lower fixing block 11 is located below the lower fixing member. When the lower fixing member is fixed on the detection head bracket, the lower fixing block 11 can abut against the lower wall of the detection head bracket. The first connecting surface 12 faces the front of the upper fixing member and the lower fixing member, and the distance from the bottom edge of the first connecting surface 12 to the top surface of the lower fixing block 11 is equal to the thickness of the detection head bracket. The distance detector fixing surface 13 faces the opposite direction of the upper fixing member and the back of the lower fixing member.

[0050] A distance detector is fixed on the distance detector fixing surface 13.

[0051] The upper fixing member includes a second connecting surface 21 and a buckle group. The second connecting surface 21 can be detachably connected to the first connecting surface 12 by buckling. The second connecting surface 21 and the first connecting surface 12 are of the same size. The buckle group is arranged behind the second connecting surface 21 and can cooperate with and be fixedly connected to the detection bracket of the infrared cigarette loose-end detector.

[0052] Among them, in the above technical solution, the distance detector is a laser distance sensor 30, and the detection probe of the laser distance sensor 30 faces the filter tip end face of the cigarette to be measured;

[0053] The laser distance sensor 30 can use the LK series laser distance sensor of Foshan Dydisco Optoelectronic Technology Co., Ltd.

[0054] A bracket buckle 25 is arranged beside the detection bracket fixing member.

[0055] As Figure 7 shown, further, in the above technical solution, the buckle group includes a detector bracket side block 22, a detector bracket upper clamping angle 23, and a detector bracket mating surface 24. The detector bracket side block 22 is located on the side of the upper fixing member close to the detection bracket of the infrared cigarette loose-end detector and on the detector bracket mating surface 24. The inner wall length of the detector bracket side block 22 is equal to the thickness of the side arm of the detection bracket of the infrared cigarette loose-end detector. The detector bracket mating surface 24 is located between the detector bracket upper clamping angle 23 and the detector bracket side block 22. The detector bracket mating surface 24 has an inclination angle, and the inclination angle of the detector bracket mating surface 24 can cooperate with the slope of the bottom fixing block of the detection bracket of the infrared cigarette loose-end detector; The detector bracket upper clamping angle 23 is located at the top of the upper fixing member and above the detector bracket mating surface 24, and the detector bracket upper clamping angle 23 can fit the apex of the bottom fixing block of the detection bracket of the infrared cigarette loose-end detector.

[0056] In use, a fixing member is installed on one side of the detection head away from the filter tip end face of the cigarette to be measured. The clamping angle 23 on the detector bracket is placed on the top of the slope of the fixing block at the bottom of the detection bracket of the infrared cigarette loosening detector, and at the same time, the side clamping block 22 of the detector bracket is buckled on the side arm of the detection bracket of the infrared cigarette loosening detector where the clamping angle 23 of the detector bracket is placed, so that the detection bracket of the infrared cigarette loosening detector is fixed together with the upper fixing member; the lower fixing block 11 of the lower fixing member is clamped at the bottom of the detection head bracket, and then the first connecting surface 12 is aligned with the second connecting surface 21, so that the guide post 122 is aligned and inserted into the guide hole 212, and the magnetic attraction column 121 is aligned and inserted into the magnetic attraction hole 211. At this time, the lower fixing member and the upper fixing member are connected together; the length from the filter tip end face of the cigarette to be measured to the lower fixing member is detected by the laser distance sensor 30, and the distance of the whole of the lower fixing member, the upper fixing member and the detection bracket of the infrared cigarette loosening detector to the filter tip end face of the cigarette to be measured is adjusted until the length measured by the laser distance sensor 30 is 113.20 mm, and this distance is calculated after removing the equipment thickness;

[0057] Since, as Figure 6 shown, points A, B, and C of the upper fixing member form three-point positioning for the detection bracket of the infrared cigarette loosening detector, which ensures that the absolute position of the positioning and fixing device and the detection bracket of the infrared cigarette loosening detector is fixed;

[0058] As Figure 4 shown, by using the characteristic that the standard cigarette length is a fixed value (such as the common cigarette standard length is 84.00 mm) and the reference total length of the detection head bracket is 203.00 mm, detecting the distance of 113.20 mm from the filter tip end face of the cigarette to be measured to the same-side end face of the detection head bracket can ensure that the installation distance of the desired cigarette loosening detector is 6.5 mm.

[0059] As Figure 8 shown, further, in the above technical solution, the first connecting surface 12 and the second connecting surface 21 are connected by magnetic snap-in and plug-out. The magnetic snap includes a magnetic attraction column 121, a guide post 122, a magnetic attraction hole 211, and a guide hole 212. The magnetic attraction column 121 and the guide post 122 are arranged on the first connecting surface 12. The magnetic attraction column 121 is arranged at the center position of the first connecting surface 12, and the guide post 122 is arranged around the magnetic attraction column 121. The magnetic attraction hole 211 and the guide hole 212 are arranged on the second connecting surface 21. The magnetic attraction hole 211 is arranged at the center position of the second connecting surface 21, and the guide hole 212 is arranged around the magnetic attraction hole 211. The magnetic polarities of the magnetic attraction column 121 and the guide post 122 are opposite, and the sizes of the magnetic attraction column 121 and the guide post 122 are mutually compatible. When the first connecting surface 12 and the second connecting surface 21 are connected, the magnetic attraction column 121 and the guide hole 212 are in alignment, and the sizes of the guide post 122 and the guide hole 212 are mutually compatible.

[0060] Further, in the above technical solution, the fixed surface 13 of the distance detector includes a limit stop 131 and a fixing through hole 132. The limit stop 131 is strip-shaped. The fixed surface 13 of the distance detector is arranged on the side of the lower fixing member close to the cigarette to be measured. The fixing through hole 132 is used to fix the laser distance sensor 30, and the fixing through hole 132 is opened on the fixed surface 13 of the distance detector.

[0061] Further, in the above technical solution, the fixing through hole 132 is a long strip-shaped through hole.

[0062] When installing the laser distance sensor 30 onto the fixed surface 13 of the distance detector, adjust the vertical height of the connecting member on the fixing through hole 132 to align the laser distance sensor 30 with the filter tip end of the cigarette to be measured.

[0063] Further, in the above technical solution, the side clamping block 22 of the detector bracket includes a horizontal plate 221 and a vertical plate 222. The horizontal plate 221 connects the mating surface 24 of the detector bracket and the vertical plate 222. The length of the horizontal plate 221 is equal to the thickness of the side arm of the infrared cigarette loose head detector detection bracket. The included angle between the horizontal plate 221 and the vertical plate 222 is between 90° and 120°.

[0064] Further, in the above technical solution, the lower fixing block 11, the first connecting surface 12, and the fixed surface 13 of the distance detector are integrally formed. The second connecting surface 21, the side clamping block 22 of the detector bracket, the upper clamping corner 23 of the detector bracket, and the mating surface 24 of the detector bracket are integrally formed.

[0065] Among them, in the above technical solution, a detection head bracket limiting mechanism 111 is arranged on the upper surface of the lower fixing block 11.

[0066] Further, in the above technical solution, the detection head bracket limiting mechanism 111 is a spring ball.

[0067] During use, when installing the fixed head bracket fixing member onto the fixed head bracket, the ball of the spring ball is pressed backward toward the spring. When the hand pressure is released, the ball of the spring ball on the fixed head bracket fixing member is ejected by the spring, generating a fixing pressure on the fixed head bracket.

[0068] Specifically, the principle of the present invention is as follows: A fixing member is installed on one side of the detection head away from the filter tip end face of the cigarette to be measured. The clamping angle 23 on the detector bracket is placed on the top of the slope of the bottom fixing block of the detection bracket of the infrared cigarette loosening detector. At the same time, the side clamping block 22 of the detector bracket is buckled on the side arm of the detection bracket of the infrared cigarette loosening detector where the clamping angle 23 of the detector bracket is placed, so that the detection bracket of the infrared cigarette loosening detector is fixed together with the upper fixing member. The lower fixing block 11 of the lower fixing member is clamped at the bottom of the detection head bracket, and then the first connecting surface 12 is aligned with the second connecting surface 21, so that the guide post 122 is aligned and inserted into the guide hole 212, and the magnetic attraction column 121 is aligned and inserted into the magnetic attraction hole 211. At this time, the lower fixing member and the upper fixing member are connected together. The length from the filter tip end face of the cigarette to be measured to the lower fixing member is detected by the laser distance sensor 30, and the distance of the whole of the lower fixing member, the upper fixing member and the detection bracket of the infrared cigarette loosening detector to the filter tip end face of the cigarette to be measured is adjusted until the length measured by the laser distance sensor 30 is 113.20 mm, and this distance includes the thickness of the device;

[0069] Points A, B, and C of the upper fixing member form three-point positioning for the detection bracket of the infrared cigarette loosening detector, which ensures the absolute position fixation between the positioning and fixing device and the detection bracket of the infrared cigarette loosening detector. By using the characteristic that the standard cigarette length is a fixed value, such as the common cigarette standard length is 84.00 mm, and the reference total length of the detection head bracket is 203.00 mm, detecting the distance of 113.20 mm from the filter tip end face of the cigarette to be measured to the same-side end face of the detection head bracket can ensure that the installation distance of the desired cigarette loosening detector is 6.5 mm.

[0070] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A positioning device for a cigarette butt looseness detector, comprising a lower fixing member and an upper fixing member. The lower fixing member is used to fix the detector bracket on the detection head bracket, and the upper fixing member is used to fix the detection bracket of the infrared cigarette butt looseness detector; Characterized in that, The lower fixing member includes a lower fixing block (11), a first connection surface (12) and a distance detector fixing surface (13). The lower fixing block (11) is located below the lower fixing member. When the lower fixing member is fixed on the detection head bracket, the lower fixing block (11) can abut against the lower wall of the detection head bracket. The first connection surface (12) faces the upper fixing member and the front of the lower fixing member. The distance from the bottom edge of the first connection surface (12) to the top surface of the lower fixing block (11) is equal to the thickness of the detection head bracket. The distance detector fixing surface (13) faces the direction opposite to the upper fixing member and the back of the lower fixing member; A distance detector is fixed on the distance detector fixing surface (13); The upper fixing member includes a second connection surface (21) and a buckle group. The second connection surface (21) can be detachably connected with the first connection surface (12) by buckling. The second connection surface (21) and the first connection surface (12) are of the same size. The buckle group is arranged behind the second connection surface (21), and the buckle group can cooperate with and be fixedly connected to the detector detection bracket; The distance detector is a laser distance sensor (30), and the detection probe of the laser distance sensor (30) faces the filter tip end face of the cigarette to be measured; The buckle group includes a detector bracket side block (22), a detector bracket upper clamping angle (23), and a detector bracket mating surface (24). The detector bracket side block (22) is located on the side of the upper fixing member close to the detection bracket of the infrared cigarette butt looseness detector and on the detector bracket mating surface (24). The inner wall length of the detector bracket side block (22) is equal to the thickness of the side arm of the detection bracket of the infrared cigarette butt looseness detector. The detector bracket mating surface (24) is located between the detector bracket upper clamping angle (23) and the detector bracket side block (22). The detector bracket mating surface (24) has an inclination angle, and the inclination angle of the detector bracket mating surface (24) can cooperate with the slope surface of the bottom fixing block of the detection bracket of the infrared cigarette butt looseness detector. The detector bracket upper clamping angle (23) is located at the top of the upper fixing member and above the detector bracket mating surface (24), and the detector bracket upper clamping angle (23) can fit the apex of the bottom fixing block of the detection bracket of the infrared cigarette butt looseness detector.

2. The positioning device for a cigarette butt looseness detector according to claim 1, Characterized in that, The first connecting surface (12) and the second connecting surface (21) are connected by magnetic snap-in and plug-in. The magnetic snap includes a magnetic attraction column (121), a guide column (122), a magnetic attraction hole (211), and a guide hole (212). The magnetic attraction column (121) and the guide column (122) are arranged on the first connecting surface (12). The magnetic attraction column (121) is arranged at the center position of the first connecting surface (12). The guide column (122) is arranged around the magnetic attraction column (121). The magnetic attraction hole (211) and the guide hole (212) are arranged on the second connecting surface (21). The magnetic attraction hole (211) is arranged at the center position of the second connecting surface (21). The guide hole (212) is arranged around the magnetic attraction hole (211). The magnetic attraction column (121) and the guide column (122) have opposite magnetic polarities, and the sizes of the magnetic attraction column (121) and the guide column (122) match each other. When the first connecting surface (12) and the second connecting surface (21) are connected, the magnetic attraction column (121) and the guide hole (212) are in alignment, and the sizes of the guide column (122) and the guide hole (212) match each other.

3. The positioning device for a cigarette butt loosening detector according to claim 1, characterized in that the distance detector fixing surface (13) includes a limit stop block (131) and a fixing through hole (132). The limit stop block (131) is in a long strip shape. The distance detector fixing surface (13) is arranged on the surface of the lower fixing part close to the cigarette to be detected. The fixing through hole (132) is used to fix the laser distance sensor (30), and the fixing through hole (132) is opened on the distance detector fixing surface (13).

4. The positioning device for a cigarette butt loosening detector according to claim 3, characterized in that the fixing through hole (132) is a long strip through hole.

5. The positioning device for a cigarette butt loosening detector according to claim 2, characterized in that the detector bracket side clamping block (22) includes a horizontal plate (221) and a vertical plate (222). The horizontal plate (221) connects the detector bracket mating surface (24) and the vertical plate (222). The length of the horizontal plate (221) is equal to the thickness of the side arm of the detection bracket of the infrared cigarette butt loosening detector. The included angle between the horizontal plate (221) and the vertical plate (222) is between 90° and 120°.

6. The positioning device for a cigarette butt loosening detector according to claim 2, characterized in that the lower fixing clamp block (11), the first connecting surface (12), and the distance detector fixing surface (13) are integrally formed. The second connecting surface (21), the detector bracket side clamping block (22), the detector bracket upper clamping corner (23), and the detector bracket mating surface (24) are integrally formed.

7. The positioning device for a cigarette butt loosening detector according to claim 1, characterized in that a detection head bracket limiting mechanism (111) is arranged on the upper surface of the lower fixing clamp block (11).

8. A positioning device for a cigarette butt loosening detector according to claim 7, characterized in that, the detection head bracket limiting mechanism (111) is a spring ball.

Images