Online detection device for vertical laser holes at ignition end of cigarette

Abstract

The utility model relates to a cigarette ignition end vertical row laser hole on-line detection device, which comprises a detection assembly and an installation support assembly, the detection assembly comprises a detection shell, a camera fixing seat, a reflector bracket, a light supplement assembly, window glass, a camera and a macro lens, the camera is installed on the camera fixing seat and arranged in the detection shell, and the macro lens is installed on the camera fixing seat and arranged in the detection shell. The macro lens is connected with the camera, the window glass and the reflector bracket are installed on the detection shell, and two light supplementing assemblies are arranged on the two sides of the window glass and used for supplementing enough light for a detected cigarette; the reflector bracket is provided with a reflector group capable of reflecting two light paths, and the camera can collect laser hole images of two cigarettes at the same time. The device has the beneficial effects that only one camera is matched with one macro lens to detect the punching effect of the two channels of the cigarette making machine, so that the size is small, the cost is low, and the performance is good.

Description

Technical Field

[0001] The utility model relates to the field of cigarette quality detection, and particularly relates to an on-line detection device for vertically arranged laser holes at the ignition end of cigarettes. Background Art

[0002] During the cigarette production process, due to the need of the rolling process, at a specific position, the feeding system and the cutting disc mechanism are used to make the cigarette rod tobacco form a specific "tight end", and the tight end is the ignition end of the cigarette. The existence of the tight end ensures to a certain extent that when the cigarette rod is cut, the least amount of tobacco shreds will fall, and the finished product is not easily formed with the defect of air core, ensuring the high-speed and stable operation of the cigarette making machine. Due to the existence of the "tight end" of the cigarette, it will bring additional draw resistance to the cigarette product, and the draw resistance is different along with the change of the cigarette diameter. For thin cigarettes, medium cigarettes and some standard cigarettes, just after ignition, due to the tight end of the cigarette, it is easy to have poor smoking sensations of defective products such as excessive initial draw resistance, difficult ignition, and high flue gas concentration, affecting the product quality. In the production process of the ignition end of the cigarette, the laser drilling process is adopted to form a row of micro-holes on the cylindrical surface of the cigarette at the ignition end to achieve the purpose of reducing resistance and reducing tar.

[0003] The quality detection of the traditional laser drilling effect at the cigarette end is completed by manual sampling inspection, and it is impossible to ensure that every cigarette is detected. Moreover, the manual detection has a large workload, low efficiency, and strong subjectivity of the detection items, which has a great impact on the accuracy of the detection results. At the same time, for the double-channel high-speed cigarette making machine, the cigarettes at the two channels at the production end are combined together. When the detection effect of the laser drilling at the cigarette end detected manually is poor, it is impossible to judge immediately which cigarette channel the unqualified cigarette comes from, and thus it is impossible to adjust the laser drilling device of the corresponding channel immediately. Further, it is extremely laborious and time-consuming to pick out the defective cigarettes from the already rolled cigarette stack. At present, a scheme of using a camera to detect the laser holes of cigarettes has been proposed, but it is only limited to the single-channel cigarette making machine. The double-channel cigarette making machine is limited by the narrow installation position space and cannot install two camera components and thus cannot detect. If the defective cigarettes flow into the market, it will affect the product quality and corporate image of the tobacco enterprise. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art, and provide an on-line detection device for vertically arranged laser holes at the ignition end of cigarettes which can effectively achieve small size, low cost and good performance by using only 1 camera equipped with 1 macro lens to detect the drilling effects of two channels of the cigarette making machine.

[0005] The on-line detection device for vertically arranged laser holes at the ignition end of cigarettes provided by the utility model has the following technical scheme:

[0006] An on-line detection device for vertically arranged laser holes at the ignition end of cigarette sticks, comprising a detection component (1) and a mounting bracket component (2). The mounting bracket component (2) is used to connect the wall panel of the cigarette making machine and the detection component (1), and install the detection component (1) on the cigarette making machine. The detection component (1) includes a detection housing (101), a camera fixing base (102), a mirror frame (103), a supplementary lighting component (106), a window glass (107), a camera (108) and a macro lens (109). The camera (108) is installed on the camera fixing base (102) and arranged inside the detection housing (101). The macro lens (109) is connected to the camera (108). The window glass (107) and the mirror frame (103) are installed on the detection housing (101). Two supplementary lighting components (106) are arranged on both sides of the window glass (107) for supplementing sufficient light to the cigarette sticks to be detected. A mirror group capable of reflecting two optical paths is arranged on the mirror frame (103), and the camera (108) can simultaneously collect the laser hole images of two cigarette sticks.

[0007] Further, the detection component (1) is arranged facing the trough table of the cigarette making machine, and the installation position is at the front end of the spider handwheel system at the transition between the main machine SE and MAX of the cigarette making machine.

[0008] Further, the mirror group includes a first reflecting lens (7), a second reflecting lens (8), a third reflecting lens (9), and a fourth reflecting lens (10). The cigarette stick image in the inner channel (3) of the cigarette making machine is sequentially reflected by the second reflecting lens (8) and the first reflecting lens (7) and then collected by the camera (108). The cigarette stick image in the inner channel (4) of the cigarette making machine is sequentially reflected by the fourth reflecting lens (10) and the third reflecting lens (9) and then collected by the camera (108).

[0009] Further, the first reflecting lens (7) and the third reflecting lens (9) are arranged at an angle to present the images of different cigarette sticks.

[0010] Further, the two collected images are distributed on both sides of the camera target surface (5), and the invalid images in the middle of the inner channel (3) and the outer channel (4) of the cigarette making machine can be cut out, reducing the image size and the size of the photographed picture.

[0011] Furthermore, the detection component (1) further includes a cleaning air plate (104), a shield (105), a trigger plate (110), a power supply plate (111), a PG head (112), an air pipe joint (113), and a quick plug (114). The trigger plate (110) is used to trigger the camera (108) to take pictures and trigger the light supplement component (106) to supplement light. The power supply plate (111) is used to supply power to the light supplement component (106). The air pipe joint (113) is communicated with the cleaning air plate (104) through the internal hole channel of the detection housing (101). When the air circuit supplies air to the air pipe joint (113), the cleaning compressed air can reach the cleaning air plate (104) to form a thin air knife, and the dust on the surface of the light supplement component (106) and the window glass (107) is blown off by the compressed air. The PG head (112) is used to connect the cable, the quick plug (114) is used to connect the signal line, and the shield (105) serves to protect the PG head (112), the air pipe joint (113), and the quick plug (114).

[0012] Furthermore, the mounting bracket assembly (2) includes a detection base plate (201), an adapter plate (202), a rotating base (203), a slide connection member (204), a slide (205), a first screw (206), a second screw (207), and a third screw (208). The detection base plate (201) is fixed on the SE wall plate of the cigarette machine. The adapter plate (202) is mounted on the adapter plate (202). After the rotating base (203), the slide connection member (204), and the slide (205) are assembled, they are fixed on the adapter plate (202) by the first screw (206) and the second screw (207). The bottom hole of the second screw (207) is an oblong hole centered on the first screw (206). After loosening the first screw (206) and the second screw (207), the detection component (1) can rotate around the first screw (206). After loosening the third screw (208), by rotating the slide (205) knob, the height of the component can be adjusted.

[0013] Furthermore, the light supplement component (106) is a Fresnel lens light supplement component.

[0014] The implementation of the present utility model includes the following technical effects:

[0015] The on-line detection device for the vertical laser holes at the ignition end of cigarette sticks of the present utility model only uses 1 camera equipped with 1 macro lens to detect the punching effects of two channels of the cigarette machine, effectively achieving small size, low cost, and good performance. While reducing the detection execution components, it can efficiently and comprehensively detect the punching effects of each cigarette, and effectively and accurately feedback the detection results to the operator with relevant information, and keep track of the punching status during the production of the cigarette machine at any time. For the unqualified cigarette sticks detected, the detection system sends a signal to the host rejection mechanism for rejection to ensure the quality of the cigarette sticks flowing into the next production link. Description of the Drawings

[0016] Figure 1 This is a schematic structural diagram of an on-line detection device for vertically arranged laser holes at the ignition end of a cigarette in an embodiment of the present utility model.

[0017] Figure 2 This is a schematic internal structure diagram of the detection component.

[0018] Figure 3 This is a schematic diagram of the optical path reflection.

[0019] Figure 4 This is a schematic structural diagram of the mounting bracket assembly.

[0020] Figure 5 This is a schematic structural diagram of the mounting bracket assembly from another angle.

[0021] Figure 6 This is a partial enlarged schematic diagram of the moving direction of the cigarette during the detection process and the vertically arranged laser holes at the ignition end.

[0022] In the figure: 1. Detection component; 101. Detection housing; 102. Camera fixing base; 103. Mirror holder; 104. Cleaning air plate; 105. Protective cover; 106. Supplementary light component; 107. Window glass; 108. Camera; 109. Macro lens; 110. Trigger board; 111. Power supply board; 112. PG head; 113. Air pipe joint; 114. Quick plug; 2. Mounting bracket assembly; 201. Detection substrate; 202. Adapter plate; 203. Rotary seat; 204. Slide connection piece; 205. Slide; 206. First screw; 207. Second screw; 208. Third screw; 3. Inner channel of the cigarette making machine; 4. Outer channel of the cigarette making machine; 5. Camera target surface; 6. Focus; 7. First reflecting lens; 8. Second reflecting lens; 9. Third reflecting lens; 10. Fourth reflecting lens; 11. Vertically arranged laser holes at the ignition end. Detailed Embodiment

[0023] Next, the present utility model will be described in detail in conjunction with the embodiments and the drawings. It should be noted that the described embodiments are only for facilitating the understanding of the present utility model and do not limit it in any way.

[0024] See Figure 1 As shown, an on-line detection device for vertically arranged laser holes at the ignition end of a cigarette in this embodiment includes a detection component 1 and a mounting bracket assembly 2. The mounting bracket assembly 2 is used to connect the wallboard of the main body SE of the cigarette making machine and the detection component 1, and stably mount the detection component 1 on the cigarette making machine. See Figure 2As shown in the figure, the detection component 1 includes a detection housing 101, a camera fixing base 102, a mirror frame 103, a supplementary lighting component 106, a window glass 107, a camera 108 and a macro lens 109. The camera 108 is installed on the camera fixing base 102 and is disposed within the detection housing 101. The macro lens 109 is connected to the camera 108. The window glass 107 and the mirror frame 103 are installed on the detection housing 101. Two supplementary lighting components 106 are disposed on both sides of the window glass 107 for supplementing sufficient light to the cigarettes to be detected to make up for the lighting requirements of the macro lens 109. A mirror group capable of reflecting two light paths is disposed on the mirror frame 103, and the camera 108 can simultaneously collect the laser hole images of two cigarettes. The detection device can be compatible with single-channel cigarette ignition end laser hole detection or dual-channel cigarette ignition end laser hole detection. The detection component 1 further includes a cleaning air plate 104, a shield 105, a trigger board 110, a power supply board 111, a PG head 112, an air pipe joint 113, and a quick plug 114. The trigger board 110 is used to trigger the camera 108 to take pictures and trigger the supplementary lighting component 106 to supplement light. The power supply board 111 is used to supply power to the supplementary lighting component 106. The air pipe joint 113 is communicated with the cleaning air plate 104 through the internal hole channel of the detection housing 101. When air is supplied to the air pipe joint 113 through the air path, the cleaning compressed air can reach the cleaning air plate 104 to form a thin air knife, and the dust on the surfaces of the supplementary lighting component 106 and the window glass 107 can be blown away by the compressed air to ensure that the detected images are not affected by physical dust accumulation. The PG head 112 is used to connect the cable, and the quick plug 114 is used to connect the signal line. The shield 105 functions to protect the PG head 112, the air pipe joint 113, and the quick plug 114. Preferably, the supplementary lighting component 106 is a Fresnel lens supplementary lighting component, which has high brightness, significant light condensation effect, portability and light weight, and good heat dissipation performance.

[0025] See Figure 1 As shown in the figure, the detection component 1 is disposed opposite to the trough table of the cigarette making machine, and the installation position is at the front end of the spider handwheel system at the transition between the main machine SE and MAX of the cigarette making machine. It can be installed on the ZJ119 type cigarette making machine. See Figure 3As shown in the figure, the mirror group includes a first reflecting lens 7, a second reflecting lens 8, a third reflecting lens 9, and a fourth reflecting lens 10. The cigarette images in the inner path 3 of the cigarette making machine are collected by the camera 108 after being reflected by the second reflecting lens 8 and the first reflecting lens 7 in sequence. The cigarette images in the outer path 4 of the cigarette making machine are collected by the camera 108 after being reflected by the fourth reflecting lens 10 and the third reflecting lens 9 in sequence. The first reflecting lens 7 and the third reflecting lens 9 are arranged at an angle to present images of different cigarettes. The two images are distributed on both sides of the camera target surface 5, and the invalid images in the middle of the inner path 3 and the outer path 4 of the cigarette making machine can be cut out, reducing the image size and the size of the photographed pictures. This detection method can compress the images of cigarettes in two channels with a long distance between them along the center of the camera target surface through the optical path reflected by the mirrors, so that the collected image has a small format. The running speed of the cigarette making machine is relatively high, and the smaller image information can be transmitted to the central processing unit in a shorter time under the same transmission conditions. This saves time for the algorithm, and thus the detection task can be executed with a lower host configuration and more detection items. By changing the image acquisition method, the hardware cost can be further reduced while relatively more algorithms can be run.

[0026] See Figure 6 As shown in the figure, the cigarettes between the spider handwheel system at the transition from the main machine SE to MAX of the cigarette making machine are axially transported on the trough table. Figure 6 The arrow direction in the figure indicates the moving direction of the cigarettes. The vertically arranged laser holes 11 at the ignition end are distributed at the ignition end of the cigarette and along the axis of the cigarette. The detection principle of the double-channel cigarette making machine is that the optical path of the camera target surface 5 diverges and irradiates on the first reflecting lens 7 and the third reflecting lens 9 after passing through the focus 6; after being reflected to the first reflecting lens 7 and the fourth reflecting lens 10 respectively; the cigarette is supplemented with light through the light supplement component 106, so that a single camera 108 and a macro lens 109 can capture the images of two narrow cigarettes on the inner path 3 and the outer path 4 of the cigarette making machine. In each photographed image, the images of two double-length cigarette strips can be taken simultaneously, that is, the laser hole states of the cigarette ends of 4 cigarettes can be photographed.

[0027] See Figure 4 and Figure 5As shown, the mounting bracket assembly 2 includes a detection substrate 201, an adapter plate 202, a rotating seat 203, a slide connector 204, a slide 205, a first screw 206, a second screw 207, and a third screw 208. The detection substrate 201 is fixed on the SE wall panel of the cigarette making machine; the adapter plate 202 is installed on the adapter plate 202; the rotating seat 203, the slide connector 204, and the slide 205 are assembled and fixed to the adapter plate 202 by the first screw 206 and the second screw 207; the bottom hole of the second screw 207 is a waist hole centered on the first screw 206. After loosening the first screw 206 and the second screw 207, the detection assembly 1 can rotate around the first screw 206 to eliminate the verticality error between the detection slot and the SE wall panel; after loosening the third screw 208, the knob of the slide 205 can be rotated to adjust the height of the assembly. When the image imaging effect is clearest, the third screw 208 is locked to position it.

[0028] The utility model of the online detection device for the vertical laser holes at the lit end of a cigarette only uses one camera equipped with one macro lens to detect the punching effects of the two channels of the cigarette making machine, which effectively achieves small size, low cost and good performance. While reducing the number of detection execution components, it can efficiently and comprehensively detect the punching effect of each cigarette, and effectively and accurately feedback the relevant information of the detection results to the operator, so that the punching status of the cigarette making machine production can be mastered at any time. For unqualified cigarettes detected, the detection system sends a signal to the host rejection mechanism to reject them, ensuring the quality of the cigarettes flowing into the next production link.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. An on-line detection device for vertically arranged laser holes at the ignition end of cigarette rods, comprising a detection component (1) and a mounting bracket component (2). The mounting bracket component (2) is used to connect the wall panel of the cigarette making machine and the detection component (1) to mount the detection component (1) on the cigarette making machine, and is characterized in that: The detection component (1) includes a detection housing (101), a camera mount (102), a mirror mount (103), a supplementary light component (106), a window glass (107), a camera (108), and a macro lens (109). The camera (108) is installed on the camera mount (102) and is disposed within the detection housing (101). The macro lens (109) is connected to the camera (108). The window glass (107) and the mirror mount (103) are installed on the detection housing (101). Two supplementary light components (106) are disposed on both sides of the window glass (107) for supplying sufficient light to the cigarette to be detected. A mirror group capable of reflecting two optical paths is provided on the mirror mount (103), and the camera (108) can simultaneously collect the laser hole images of two cigarettes.

2. The on-line detection device for vertically arranged laser holes at the igniting end of a cigarette according to claim 1, characterized in that: The detection component (1) is disposed opposite to the trough table of the cigarette making machine, and the installation position is at the front end of the spider handwheel system at the transition between the main machine SE and MAX of the cigarette making machine.

3. An online detection device for vertically arranged laser holes at the ignition end of a cigarette, according to claim 1, characterized in that: The mirror group includes a first mirror lens (7), a second mirror lens (8), a third mirror lens (9), and a fourth mirror lens (10). The cigarette image in the inner channel (3) of the cigarette making machine is collected by the camera (108) after being reflected by the second mirror lens (8) and the first mirror lens (7) in sequence. The cigarette image in the inner channel (3) of the cigarette making machine is collected by the camera (108) after being reflected by the fourth mirror lens (10) and the third mirror lens (9) in sequence.

4. An on-line detection device for vertically arranged laser holes at the ignition end of a cigarette, according to claim 3, characterized in that: The first mirror lens (7) and the third mirror lens (9) are arranged at an angle to present the images of different cigarettes.

5. The on-line detection device for vertically arranged laser holes at the ignition end of a cigarette according to claim 1, characterized in that: The two collected images are distributed on both sides of the camera target surface (5), and the invalid images in the middle of the inner channel (3) and the outer channel (4) of the cigarette making machine can be cropped out, reducing the image size and the size of the photographed picture.

6. The on-line detection device for vertically arranged laser holes at the ignition end of a cigarette according to claim 1, wherein: The detection component (1) further includes a cleaning air plate (104), a shield (105), a trigger board (110), a power supply board (111), a PG head (112), an air pipe joint (113), and a quick plug (114). The trigger board (110) is used to trigger the camera (108) to take pictures and trigger the supplementary light component (106) to supply light. The power supply board (111) is used to supply power to the supplementary light component (106). The air pipe joint (113) is communicated with the cleaning air plate (104) through the internal hole channel of the detection housing (101). When the air path supplies air to the air pipe joint (113), the cleaning compressed air can reach the cleaning air plate (104) to form a thin air knife, and the dust on the surface of the supplementary light component (106) and the window glass (107) is blown away by the compressed air. The PG head (112) is used to connect the cable, the quick plug (114) is used to connect the signal line, and the shield (105) serves to protect the PG head (112), the air pipe joint (113), and the quick plug (114).

7. An on-line detection device for vertically arranged laser holes at the ignition end of a cigarette according to claim 1, characterized in that: The mounting bracket assembly (2) includes a detection substrate (201), an adapter plate (202), a rotating base (203), a slide connection member (204), a slide (205), a first screw (206), a second screw (207), and a third screw (208). The detection substrate (201) is fixed to the SE wallboard of the cigarette machine; the adapter plate (202) is mounted on the adapter plate (202); after the rotating base (203), the slide connection member (204), and the slide (205) are assembled, they are fixed to the adapter plate (202) by the first screw (206) and the second screw (207); the bottom hole of the second screw (207) is an oblong hole centered on the first screw (206). After loosening the first screw (206) and the second screw (207), the detection assembly (1) can rotate around the first screw (206); after loosening the third screw (208), by rotating the slide (205) knob, the height of the assembly can be adjusted.

8. An on-line detection device for vertically arranged laser holes at the igniting end of a cigarette, according to claim 1, characterized in that: The supplementary light component (106) is a Fresnel lens supplementary light component.

Images