A finished product tissue appearance detection device
By designing detection box one and detection box two in the tissue paper detection device, and combining the push-down component and vision sensor, two-stage detection of tissue paper is achieved, which solves the problem of difficult detection of the contact surface between the packaging bag and the conveyor belt, and improves the comprehensiveness of detection and the yield rate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WEIANJIE CARE PROD CHINA CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-07-14
AI Technical Summary
In the existing technology, during the packaging process of tissue paper, the side of the packaging bag that comes into contact with the conveyor belt is prone to breakage but is difficult to detect, resulting in a low yield rate and the possibility of accidental sale.
A detection device consisting of detection box one and detection box two was designed. The first detection is performed by vision sensor one, and the packaged tissues are pushed over by a push-over component to expose the undetected parts. Then, vision sensor two performs a second detection to ensure that all sides are detected.
This system enables two-stage testing of tissues, significantly improving the yield rate and preventing the accidental sale of defective products.
Smart Images
Figure CN224500355U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tissue paper appearance inspection technology, specifically a finished tissue paper appearance inspection device. Background Technology
[0002] Ready-made tissues refer to paper towel products that have undergone processing and can be easily pulled out of the packaging for use. Tissues are usually in a square or rectangular shape, and each time a sheet can be pulled out from a small opening, taking out the next sheet for the next use.
[0003] When tissues are packaged in bags using packaging equipment, the bags may break. Therefore, after the tissues are packaged, it is extremely important to inspect their appearance to prevent the tissues from being sold accidentally.
[0004] For example, a tissue packaging inspection device published in Chinese patent application number CN201620744816.X mentions: "It includes a conveyor belt, a vision sensor, a spraying mechanism, a guide baffle, and a processing box. The vision sensor detects the outer packaging of the tissues, and the spraying mechanism sprays any ruptured tissues from the outer packaging onto the guide baffle, where they finally fall into the processing box. This method can efficiently and accurately detect tissues with ruptured outer packaging. The tissue packaging inspection device of this utility model includes a conveyor belt, a vision sensor, a spraying mechanism, a guide baffle, and a processing box; the vision sensor is installed on one side of the conveyor belt; the vision sensor is connected to the spraying mechanism; the spraying mechanism and the guide baffle are arranged opposite each other on both sides of the conveyor belt; the processing box is located below the outlet of the guide baffle."
[0005] Through a search of the aforementioned patents, we found that because the tissue paper needs to be transported to the inspection station via a conveyor belt, when using vision sensors at the inspection station, they can often only inspect the exposed tissue paper. The side of the tissue paper that contacts the conveyor belt is obscured, creating a blind spot. Therefore, the vision sensors often cannot detect the situation on this side, resulting in incomplete inspection. When the side of the tissue paper that contacts the conveyor belt is broken and cannot be detected, it is easy to have a low yield rate and the tissue paper being sold unexpectedly. Utility Model Content
[0006] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a finished tissue paper appearance inspection device, comprising a conveyor frame and a conveyor belt, wherein an inspection box one and an inspection box two are fixed on the top of the conveyor frame; the inspection box one has an opening one on both the left and right sides and an outlet one on the front, and an electric push rod one is installed on the back of the inspection box one, with a push plate one fixed on the power output shaft of the electric push rod one; the inspection box two has an opening two on both the left and right sides and an outlet two on the front, and an electric push rod two is installed on the back of the inspection box one, with a push plate two fixed on the power output shaft of the electric push rod two; a push-down assembly is fixed by bolts on the left side of the inspection box two and above the opening two, the push-down assembly comprising a fixing plate and a push-down plate.
[0008] As a further embodiment of this utility model: the second detection box is located to the right of the first detection box, and the two openings one and two openings two correspond in position and are the same size.
[0009] As a further embodiment of this utility model: a notch 1 is provided on one side of the top of the conveyor frame and at a position corresponding to outlet 1, and a guide frame 1 is fixed at the notch 1; a notch 2 is provided on one side of the top of the conveyor frame and at a position corresponding to outlet 2, and a guide frame 2 is fixed at the notch 2.
[0010] As a further embodiment of this utility model: the push plate one corresponds to the outlet one, the push plate two corresponds to the outlet two, the width of the outlet two is wider than the width of the outlet one, and the width of the guide frame two is wider than the width of the guide frame one.
[0011] As a further embodiment of this utility model: multiple threaded holes are equally spaced on the left side of the second detection box and at the top of the second opening. The push plate is fixed to the bottom of one side of the fixed plate. The side of the push plate away from the fixed plate is designed as an arc structure. A bolt passes through the fixed plate. One end of the thread is threaded into one of the threaded holes of the second detection box.
[0012] As a further embodiment of this utility model: a vision sensor 1 is installed on the inner top wall of the detection box 1, and a vision sensor 2 is installed on the inner top wall of the detection box 2 on the side away from the push-down component. The vision sensor 2 is tilted. A control module is also installed on one side of the conveyor frame. The vision sensor 1 and the vision sensor 2 are respectively connected to the electric push rod 1 and the electric push rod 2 through the control module.
[0013] As a further embodiment of this utility model: finished tissues are conveyed on the conveyor belt, the conveyor belt is set inside the conveyor frame and driven by a servo motor, and a guide frame is fixed at the right exit of the conveyor frame.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] In this application, by designing inspection box one and inspection box two, the visual sensor inside inspection box one can perform an initial inspection of the packaged finished tissue paper that is being conveyed. Using inspection box two and a push-down component, the tissue paper can be pushed down for a secondary inspection. When the tissue paper is found to be undamaged after passing through inspection box one, it can be pushed down by the push-down component, thus exposing the side that was originally in contact with the conveyor belt, making it easier for the visual sensor two to detect. This method allows for two inspections of the tissue paper: one inspection of the entire exposed appearance and another inspection of the covered side, thereby greatly improving the yield rate and preventing defective products from being sold accidentally.
[0016] In this application, when the tissue paper detected by the first inspection box is found to be broken, it can be pushed into the first guide frame by the first electric push rod for easy subsequent processing. When the tissue paper detected by the second inspection box is found to be broken, it can be pushed into the second guide frame by the second electric push rod for easy subsequent processing. When the tissue paper detected by the first and second inspection boxes is not broken, it can be conveyed into the third guide frame by the conveyor belt for easy packaging of the unbroken tissue paper for easy subsequent sales. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;
[0018] Figure 2 This is a side sectional view of the detection box of this utility model;
[0019] Figure 3 This is a side sectional view of the detection box II of this utility model;
[0020] Figure 4 This is a side view of the push-down component of this utility model on the second detection box;
[0021] Figure 5 This is a three-dimensional structural diagram of the push-down component of this utility model.
[0022] The reference numerals and names in the figure are as follows:
[0023] 1. Conveyor frame; 2. Conveyor belt; 3. Control module; 4. Detection box one; 401. Opening one; 402. Outlet one; 5. Detection box two; 501. Opening two; 502. Outlet two; 6. Guide frame one; 7. Guide frame two; 8. Guide frame three; 9. Electric push rod one; 901. Push plate one; 10. Electric push rod two; 1001. Push plate two; 11. Vision sensor one; 12. Vision sensor two; 13. Push-down assembly; 1301. Fixing plate; 1302. Push-down plate. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Please see Figure 1-5 A finished tissue paper appearance inspection device includes a conveyor frame 1 and a conveyor belt 2. Inspection box 4 and inspection box 5 are fixed to the top of the conveyor frame 1. Finished tissue paper is conveyed on the conveyor belt 2, which is located inside the conveyor frame 1 and driven by a servo motor. A guide frame 8 is fixed at the right exit of the conveyor frame 1. Inspection box 4 has openings 401 on both the left and right sides and an exit 402 on the front. The openings 401 facilitate the entry and exit of tissue paper conveyed by the conveyor belt 2, while the exit 402 facilitates the removal of broken tissue paper. An electric push rod 9 is installed on the back of inspection box 4. Push plate 901 is fixed on the power output shaft of rod 9; openings 501 are provided on both the left and right sides of the detection box 5, and an outlet 502 is provided on the front. The two openings 501 allow the tissues conveyed by the conveyor belt 2 to enter and exit the detection box 5, while the outlet 502 allows broken tissues to be pushed out. An electric push rod 10 is installed on the back of the detection box 4. Push plate 1001 is fixed on the power output shaft of the electric push rod 10. A push-down assembly 13 is fixed to the left side of the detection box 5 above the opening 501 by bolts. The push-down assembly 13 includes a fixed plate 1301 and a push-down plate 1302.
[0026] Please see Figure 1 In this embodiment, the second detection box 5 is located to the right of the first detection box 4, and the two openings 401 and 501 are in the same position and the same size.
[0027] Specifically, the tissues can be conveyed sequentially into the first detection box 4 and the second detection box 5 by the conveyor belt 2, forming a continuous flow. The positions of the first opening 401 and the second opening 501 are corresponding and the same size, which facilitates the entry and exit of the tissues.
[0028] Please see Figure 1 and Figure 2 In this embodiment, a notch 1 is provided on the top side of the conveyor frame 1 at the position corresponding to the outlet 402, and a guide frame 6 is fixed at the notch 1. A notch 2 is provided on the top side of the conveyor frame 1 at the position corresponding to the outlet 502, and a guide frame 2 7 is fixed at the notch 2.
[0029] Specifically, notch one allows the tissue paper on conveyor belt 2 to slide in and exit through outlet one 402 into guide frame one 6, while notch two allows the tissue paper on conveyor belt 2 to slide in and exit through outlet two 502 into guide frame two 7.
[0030] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 In this embodiment, push plate 901 corresponds to outlet 402, push plate 1001 corresponds to outlet 502, outlet 502 is wider than outlet 402, and guide frame 7 is wider than guide frame 6.
[0031] Specifically, pusher plate 901 can push the broken tissues in detection box 4 and push them out from outlet 402. Pusher plate 1001 can push the broken tissues in detection box 5 and push them out from outlet 502. Since the width changes after the tissues in detection box 5 are pushed over, the width of outlet 502 is greater than the width of outlet 402, which makes it easier to push out the broken tissues.
[0032] Please see Figure 1 , Figure 3 and Figure 5 In this embodiment, multiple threaded holes are provided at equal intervals on the left side of the detection box 2 5 and at the top of the opening 2 501. The push plate 1302 is fixed to the bottom of one side of the fixing plate 1301. The side of the push plate 1302 away from the fixing plate 1301 is designed as an arc structure. A bolt passes through the fixing plate 1301, and one end of the thread is threaded into one of the threaded holes of the detection box 2 5.
[0033] Specifically, since different batches of tissue paper may have different models or sizes, the fixing plate 1301 can be disassembled from the detection box 2 5 by loosening the bolts. Since the detection box 2 5 has multiple threaded holes vertically opened, the bolts can be inserted into the threaded holes at different heights to adjust the height of the entire push plate 1302, thereby adapting to different models or sizes of packaged tissue paper and improving the applicability of the device.
[0034] Please see Figure 2 and Figure 3 In this embodiment, a vision sensor 11 is installed on the inner top wall of the detection box 4, and a vision sensor 12 is installed on the inner top wall of the detection box 5 away from the push-down assembly 13. The vision sensor 12 is tilted. A control module 3 is also installed on one side of the conveyor frame 1. The vision sensor 11 and the vision sensor 12 are respectively connected to the electric push rod 9 and the electric push rod 10 through the control module 3.
[0035] Specifically, vision sensor 11 is used to detect the condition of the tissue box inside detection box 4, and vision sensor 12 is used to detect the condition of the tissue box inside detection box 5. When the outer packaging of the tissue box is found to be broken, a signal can be sent to the control module 3, which will then activate electric push rod 9 or electric push rod 10 to push out the broken tissue box. The number of vision sensors 11 installed on the top wall inside detection box 4 is not limited to one, but can be multiple, to detect different sides of the tissue box packaging.
[0036] In use: The packaged tissues are conveyed by conveyor belt 2 and pass through detection box 1 4 and detection box 2 5 in sequence. When they enter detection box 1 4 through opening 1 401, vision sensor 11 detects the packaged tissues. If the packaging bag is detected to be broken, electric push rod 9 is activated. The power output shaft of electric push rod 9 pushes push plate 901 to push the broken tissues into notch 1 and through outlet 402 to fall into guide frame 6. After being pushed out, the power output shaft of electric push rod 9 retracts. When no broken packaging bag is detected, the tissues continue to be conveyed by conveyor belt 2 and move closer to one side of detection box 2 5.
[0037] When the packaged tissues are close to the testing box 25, if Figure 3 As shown, the top of one side of the packaged tissue paper is blocked by the push plate 1302. As the conveyor belt 2 is conveyed, it is pushed down by the push plate 1302, thus exposing the side of the tissue paper that was originally in contact with the conveyor belt 2. It then enters the detection box 5 through the opening 2 501. At this time, the vision sensor 2 12 can detect the side of the tissue paper that was originally in contact with the conveyor belt 2. If breakage is detected, the electric push rod 2 10 is activated to push the tissue paper into the notch 2 using the push plate 2 1001 and through the outlet 2 502, falling into the guide frame 2 7. After being pushed out, the power output shaft of the electric push rod 2 10 retracts. When no breakage is detected, the tissue paper continues to be conveyed by the conveyor belt 2 towards one side of the guide frame 3 8, and finally falls into the guide frame 3 8 through the transmission of the conveyor belt 2.
[0038] It should be noted that the vision sensor 11, vision sensor 212, and control module 3 mentioned in the specification are all publicly available technologies that can be found through conventional means, and are also described in the published patent application number CN201620744816.X. Therefore, their specific principles or structures will not be elaborated in this specification.
[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A finished tissue paper appearance inspection device, comprising a conveyor frame (1) and a conveyor belt (2), characterized in that, The top of the conveyor frame (1) is fixed with a detection box one (4) and a detection box two (5); The detection box 1 (4) has an opening 1 (401) on both the left and right sides and an outlet 1 (402) on the front. An electric push rod 1 (9) is installed on the back of the detection box 1 (4). A push plate 1 (901) is fixed on the power output shaft of the electric push rod 1 (9). The detection box 2 (5) has openings 2 (501) on both the left and right sides and an outlet 2 (502) on the front. The back of the detection box 1 (4) is equipped with an electric push rod 2 (10). The power output shaft of the electric push rod 2 (10) is fixed with a push plate 2 (1001). The left side of the detection box 2 (5) and above the opening 2 (501) is fixed with a push-down assembly (13) by bolts. The push-down assembly (13) includes a fixed plate (1301) and a push-down plate (1302).
2. The finished tissue paper appearance inspection device according to claim 1, characterized in that, The second detection box (5) is located to the right of the first detection box (4), and the two openings (401) correspond to the two openings (501) in position and are the same size.
3. The finished tissue paper appearance inspection device according to claim 1, characterized in that, A notch 1 is provided on the top side of the conveyor frame (1) at a position corresponding to the outlet 1 (402), and a guide frame 1 (6) is fixed at the notch 1. A notch 2 is provided on the top side of the conveyor frame (1) at a position corresponding to the outlet 2 (502), and a guide frame 2 (7) is fixed at the notch 2.
4. The finished tissue paper appearance inspection device according to claim 3, characterized in that, The push plate one (901) corresponds to the outlet one (402), the push plate two (1001) corresponds to the outlet two (502), the width of the outlet two (502) is wider than the width of the outlet one (402), and the width of the guide frame two (7) is wider than the width of the guide frame one (6).
5. The finished tissue paper appearance inspection device according to claim 1, characterized in that, Multiple threaded holes are provided at equal intervals on the left side of the second test box (5) and at the top of the second opening (501). The push plate (1302) is fixed to the bottom of one side of the fixed plate (1301). The side of the push plate (1302) away from the fixed plate (1301) is designed as an arc structure. A bolt passes through the fixed plate (1301). One end of the thread is threaded into one of the threaded holes of the second test box (5).
6. The finished tissue paper appearance inspection device according to claim 1, characterized in that, A vision sensor 1 (11) is installed on the inner top wall of the first detection box (4), and a vision sensor 2 (12) is installed on the inner top wall of the second detection box (5) away from the push-down assembly (13). The vision sensor 2 (12) is tilted. A control module (3) is also installed on one side of the conveyor frame (1). The vision sensor 1 (11) and the vision sensor 2 (12) are respectively connected to the electric push rod 1 (9) and the electric push rod 2 (10) through the control module (3).
7. The finished tissue paper appearance inspection device according to claim 1, characterized in that, Finished tissue paper is conveyed on the conveyor belt (2). The conveyor belt (2) is set inside the conveyor frame (1) and driven by a servo motor. A guide frame three (8) is fixed at the right exit of the conveyor frame (1).