Single-sided corrugated board specification and dimension detection device

Abstract

The utility model discloses a single-sided corrugated board specification and dimension detection device, and belongs to the technical field of paperboard processing detection equipment. The problems that an existing detection method is low in efficiency and prone to being influenced by human factors, and consequently the detection result is inaccurate are solved. The conveying belt mechanism is provided with the mounting frame, the positioning mechanism, the length detection mechanism, the thickness detection mechanism, the width detection mechanism, the unqualified product identification mechanism and the unqualified product removing mechanism are sequentially mounted on the mounting frame, the qualified product collecting table abuts against the rear end of the conveying belt mechanism, the mounting frame is provided with the control panel, and the mounting frame is provided with a notch. The unqualified product collecting table is arranged on the outer side of the notch position, and the positioning mechanism, the length detection mechanism, the thickness detection mechanism, the width detection mechanism, the unqualified product marking mechanism and the unqualified product removing mechanism are all connected with the control panel. The whole process is automatic, and the production efficiency is improved. The accuracy of a detection result is ensured. Operation is simple and fast. All the mechanisms are reasonable in layout, compact in structure, small in occupied space and convenient to install and maintain.

Description

Technical Field

[0001] The utility model belongs to the technical field of cardboard processing and detection equipment, in particular to a device for detecting the specifications and dimensions of single-faced corrugated cardboard. Background Art

[0002] In the corrugated cardboard production process, accurate dimensional inspection is crucial for ensuring product quality. Traditional manual inspection methods are inefficient and susceptible to human error, leading to inaccurate results. Therefore, a device that can automatically, accurately, and efficiently inspect dimensional specifications is needed to meet the demands of modern production. Utility Model Content

[0003] The utility model aims to provide a device for detecting the specifications and dimensions of single-faced corrugated cardboard, so as to solve the problem that the existing method for detecting the specifications and dimensions of corrugated cardboard is inefficient and easily affected by human factors, resulting in inaccurate detection results.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: A single-sided corrugated cardboard specification and size detection device, including a conveyor belt mechanism, a qualified product collection platform, an unqualified product collection platform, a positioning mechanism, a length detection mechanism, a thickness detection mechanism, a width detection mechanism, an unqualified product identification mechanism and an unqualified product removal mechanism, the front and rear sides of the frame of the conveyor belt mechanism are respectively installed with mounting frames, the positioning mechanism, length detection mechanism, thickness detection mechanism, width detection mechanism, unqualified product identification mechanism and unqualified product removal mechanism are sequentially installed on the mounting frames along the conveying direction of the conveyor belt mechanism, the qualified product collection platform is abutted against the rear end of the frame of the conveyor belt mechanism, a control panel is installed on the outer side wall of the front mounting frame, a notch is opened at the right end of the rear mounting frame at the corresponding position of the unqualified product removal mechanism, the unqualified product collection platform is arranged outside the notch position of the mounting frame, the positioning mechanism, length detection mechanism, thickness detection mechanism, width detection mechanism, unqualified product identification mechanism and unqualified product removal mechanism are all connected to the control panel.

[0005] Furthermore, the positioning mechanism includes two telescopic motors 1, two connecting rods 1 and two positioning plates. The two telescopic motors 1 are symmetrically installed on the outer walls of the two mounting frames. The output ends of the two telescopic motors 1 are respectively fixedly connected to one end of the corresponding connecting rod 1, and the other ends of the two connecting rods 1 pass through the corresponding mounting frames and are fixedly connected to the corresponding positioning plates. A guide channel for the single-sided corrugated cardboard is formed between the two positioning plates, and the two telescopic motors 1 are both connected to the control panel.

[0006] Furthermore, the length detection mechanism includes a mounting frame and multiple photoelectric sensors. The mounting frame is an inverted U-shaped frame structure, and the two ends of the mounting frame are respectively fixed on two mounting frames. The multiple photoelectric sensors are evenly distributed above the conveyor belt mechanism in the front and rear directions. The multiple photoelectric sensors are all installed on the mounting frame, and the multiple photoelectric sensors are all connected to the control panel.

[0007] Furthermore, the thickness detection mechanism includes a second mounting frame, multiple elastic telescopic rods and multiple displacement sensors. The second mounting frame is an inverted U-shaped frame structure. The lower two ends of the second mounting frame are respectively fixed on two mounting frames. The multiple elastic telescopic rods are evenly distributed and vertically downwardly arranged on the lower end surface of the beam of the second mounting frame. The multiple displacement sensors are respectively arranged at the lower ends of the corresponding elastic telescopic rods, and the multiple displacement sensors are all connected to the control panel.

[0008] Furthermore, the width detection mechanism includes two photoelectric sensors 2, which are arranged on the inner side walls of the two mounting frames in a front-to-rear manner, and are both connected to the control panel.

[0009] Furthermore, the defective product identification mechanism includes a mounting frame three, a telescopic motor two and a seal. The mounting frame three is an inverted U-shaped frame structure. The lower ends of the mounting frame three are respectively fixed on two mounting frames. The telescopic motor two is installed at the upper end of the beam of the mounting frame three. The output end of the telescopic motor two is fixedly connected to one end of the connecting rod two. The other end of the connecting rod two passes vertically downward through the mounting frame three and is fixedly connected to the seal. The telescopic motor two is connected to the control panel.

[0010] Furthermore, the defective product removal mechanism includes a telescopic motor three, a connecting rod three and a push plate. The telescopic motor three is installed on the outer wall at the rear end of the front mounting frame. The output end of the telescopic motor three is fixedly connected to one end of the connecting rod three, and the other end of the connecting rod three passes through the front mounting frame and is fixedly connected to the push plate.

[0011] Furthermore, the qualified product collection platform is at the same height as the conveyor belt mechanism, and a collection notch is provided on the qualified product collection platform, and the collection notch is arranged opposite to the rear end of the conveyor belt mechanism.

[0012] Furthermore, the structure of the defective product collection platform is the same as that of the qualified product collection platform and is consistent with the height of the conveyor belt mechanism. The collection notch on the defective product collection platform is arranged opposite to the notch on the rear mounting frame.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model realizes the full automation of cardboard transmission, positioning, detection to classification and collection, greatly improving production efficiency.

[0015] 2. This utility model uses high-precision detection equipment such as photoelectric sensors and displacement sensors to ensure the accuracy of the detection results.

[0016] 3. The utility model can realize the control of the entire detection device through the control panel, and the operation is simple and fast.

[0017] 4. The various mechanisms of the utility model are reasonably arranged, compact in structure, occupy little space, and are easy to install and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the main view of the utility model;

[0019] Figure 2 It is a top view of the utility model;

[0020] Figure 3 It is a structural diagram of the length detection mechanism;

[0021] Figure 4 It is a structural diagram of the thickness detection mechanism;

[0022] Figure 5 This is a schematic diagram of the structure of the non-conforming product identification organization;

[0023] Figure 6 It is a structural diagram of single-faced corrugated cardboard.

[0024] The names and reference numerals of the components in the above drawings are as follows:

[0025] 1. Conveyor belt mechanism; 2. Mounting frame; 3. Positioning mechanism; 4. Length detection mechanism; 5. Thickness detection mechanism; 6. Rejected product identification mechanism; 7. Rejected product removal mechanism; 8. Qualified product collection platform; 9. Width detection mechanism; 10. Control panel; 11. Rejected product collection platform; 21. Notch; 31. Telescopic motor 1; 32. Connecting rod 1; 33. Positioning plate; 41. Mounting frame 1; 42. Photoelectric sensor 1; 51. Mounting frame 2; 52. Elastic telescopic rod; 53. Displacement sensor; 61. Mounting frame 3; 62. Telescopic motor 2; 63. Seal; 64. Connecting rod 2; 71. Telescopic motor 3; 72. Connecting rod 3; 73. Push plate; 91. Photoelectric sensor 2; 12. Single-sided corrugated cardboard. DETAILED DESCRIPTION

[0026] The technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] Specific implementation: Figures 1-6 As shown, this embodiment discloses a device for detecting the size of single-faced corrugated cardboard, comprising a conveyor belt mechanism 1, a qualified product collecting platform 8, a unqualified product collecting platform 11, a positioning mechanism 3, a length detecting mechanism 4, a thickness detecting mechanism 5, a width detecting mechanism 9, an unqualified product identifying mechanism 6 and an unqualified product removing mechanism 7. The conveyor belt mechanism 1 is provided with mounting frames 2 on the front and rear sides of the frame, and the positioning mechanism 3, the length detecting mechanism 4, the thickness detecting mechanism 5, the width detecting mechanism 9, the unqualified product identifying mechanism 6 and the unqualified product removing mechanism 7 are arranged along the conveyor belt mechanism. The conveying direction of the belt feeding mechanism 1 is sequentially installed on the mounting frame 2, the qualified product collection platform 8 is set against the rear end of the frame of the conveyor belt mechanism 1, and a control panel 10 is installed on the outer wall of the front mounting frame 2. A notch 21 is opened at the right end of the rear mounting frame 2 at the position corresponding to the unqualified product removal mechanism 7, and the unqualified product collection platform 11 is set outside the notch 21 of the mounting frame 2. The positioning mechanism 3, length detection mechanism 4, thickness detection mechanism 5, width detection mechanism 9, unqualified product identification mechanism 6 and unqualified product removal mechanism 7 are all connected to the control panel 10.

[0028] Furthermore, the positioning mechanism 3 includes two telescopic motors 31, two connecting rods 32 and two positioning plates 33. The two telescopic motors 31 are symmetrically installed on the outer walls of the two mounting frames 2. The output ends of the two telescopic motors 31 are respectively fixedly connected to one end of the corresponding connecting rod 32. The other ends of the two connecting rods 32 pass through the corresponding mounting frames 2 and are fixedly connected to the corresponding positioning plates 33. A guide channel for the single-sided corrugated cardboard 12 is formed between the two positioning plates 33. The two telescopic motors 31 are both connected to the control panel 10.

[0029] Furthermore, the length detection mechanism 4 includes a mounting frame 41 and multiple photoelectric sensors 42. The mounting frame 41 is an inverted U-shaped frame structure. The lower ends of the mounting frame 41 are respectively fixed on two mounting frames 2. The multiple photoelectric sensors 42 are evenly distributed above the conveyor belt mechanism 1 in the front-to-back direction. The multiple photoelectric sensors 42 are all installed on the mounting frame 41, and the multiple photoelectric sensors 42 are all connected to the control panel 10.

[0030] Furthermore, the thickness detection mechanism 5 includes a second mounting frame 51, a plurality of elastic telescopic rods 52 (which is the existing technology) and a plurality of displacement sensors 53. The second mounting frame 51 is an inverted U-shaped frame structure. The lower ends of the second mounting frame 51 are respectively fixed on two mounting frames 2. The plurality of elastic telescopic rods 52 are evenly distributed and vertically downwardly arranged on the lower end surface of the beam of the second mounting frame 51. The plurality of displacement sensors 53 are respectively arranged at the lower ends of the corresponding elastic telescopic rods 52. The plurality of displacement sensors 53 are all connected to the control panel 10.

[0031] Furthermore, the width detection mechanism 9 includes two photoelectric sensors 91 2 , which are arranged on the inner side walls of the two mounting frames 2 in a front-to-rear manner. Both photoelectric sensors 91 are connected to the control panel 10 .

[0032] Furthermore, the defective product identification mechanism 6 includes a mounting frame three 61, a telescopic motor two 62 and a seal 63. The mounting frame three 61 is an inverted U-shaped frame structure. The lower two ends of the mounting frame three 61 are respectively fixed on two mounting frames 2. The telescopic motor two 62 is installed at the upper end of the crossbeam of the mounting frame three 61. The output end of the telescopic motor two 62 is fixedly connected to one end of the connecting rod two 64. The other end of the connecting rod two 64 vertically downward passes through the mounting frame three 61 and is fixedly connected to the seal 63. The telescopic motor two 62 is connected to the control panel 10.

[0033] Furthermore, the defective product removal mechanism 7 includes a telescopic motor 3 71, a connecting rod 3 72 and a push plate 73. The telescopic motor 3 71 is installed on the outer wall of the rear end of the front mounting frame 2. The output end of the telescopic motor 3 71 is fixedly connected to one end of the connecting rod 3 72, and the other end of the connecting rod 3 72 passes through the front mounting frame 2 and is fixedly connected to the push plate 73.

[0034] Furthermore, the qualified product collecting platform 8 is at the same height as the conveyor belt mechanism 1 , and a collecting notch is provided on the qualified product collecting platform 8 , and the collecting notch is arranged opposite to the rear end of the conveyor belt mechanism 1 .

[0035] Furthermore, the defective product collecting platform 11 has the same structure as the qualified product collecting platform 8 and is at the same height as the conveyor belt mechanism 1 , and the collecting notch on the defective product collecting platform 11 is arranged opposite to the notch 21 on the rear mounting frame 2 .

[0036] Installation and working principle of each mechanism: First, install the conveyor belt mechanism 1 at an appropriate position on the workbench or assembly line to ensure that it can smoothly and continuously convey the single-face corrugated cardboard 12. Two mounting frames 2 are installed on the front and back sides of the conveyor belt mechanism 1 respectively. The mounting frames 2 are used to support and fix the subsequent detection mechanism and collection table.

[0037] Two telescopic motors (1) (31) are symmetrically mounted on the outer walls of the two mounting frames (2). The output end of each telescopic motor (31) is fixedly connected to one end of a corresponding connecting rod (1) (32) via bolts or other fastening means. The other end of the connecting rod (32) passes through a pre-recorded hole in the mounting frame (2) and is fixedly connected to a positioning plate (33). When the telescopic motor (31) is in operation, the extension and retraction of the telescopic motor (31) drives the positioning plate (33) toward or away from the center of the conveyor mechanism (1), thereby precisely positioning the passing single-faced corrugated cardboard (12).

[0038] Mounting frame 1 (41) is mounted between the two mounting frames (2) using bolts or other fixing methods to ensure stability and stability. Multiple photoelectric sensors (42) are evenly distributed on the lower end of the crossbeam of mounting frame 1 (41). These sensors measure the length of cardboard. When a cardboard passes through, the photoelectric sensors (42) transmit the detected signal to the control panel (10), which processes and determines the data.

[0039] Mounting frame 2 51 is also mounted between the two mounting frames 2. Multiple elastic telescopic rods 52 are evenly spaced on its lower end surface. A displacement sensor 53 is mounted at the lower end of each elastic telescopic rod 52. When a single-face corrugated cardboard 12 passes by, the elastic telescopic rods 52 expand and contract under the pressure of the cardboard, driving the displacement sensors 53 to generate displacement signals. These displacement signals are transmitted to the control panel 10 for calculating the cardboard's thickness.

[0040] A photoelectric sensor 91 is mounted on the inner sidewalls of each mounting frame 2. These two sensors 91 are positioned opposite each other, forming a width detection channel. As a single-faced corrugated cardboard 12 passes through, the two photoelectric sensors 91 measure its width. The detected signal is also transmitted to the control panel 10 for processing.

[0041] When the control panel 10 determines that a cardboard is defective based on the length, width, and thickness test results, it issues instructions to the defective product identification mechanism 6 and the defective product removal mechanism 7. Telescopic motor 2 62 drives connecting rod 2 64 and stamp 63 downward, causing stamp 63 to stamp the cardboard with a defective mark. Subsequently, telescopic motor 3 71 drives connecting rod 3 72 and push plate 73 forward, pushing the defective product off the conveyor mechanism 1, through the notch 21 in the rear mounting frame 2, and onto the defective product collection platform 11.

[0042] The qualified single-faced corrugated cardboards 12 will continue to move forward along the conveyor belt mechanism 1 and eventually reach the qualified product collection platform 8. The qualified product collection platform 8 is at the same height as the conveyor belt mechanism 1 and is provided with a collection notch to ensure that the cardboard can slide smoothly onto the collection platform.

[0043] Workflow:

[0044] 1. Preparation

[0045] Equipment inspection: Ensure that all components of the detection device (such as conveyor belt mechanism 1, positioning mechanism 3, length detection mechanism 4, thickness detection mechanism 5, width detection mechanism 9, defective product identification mechanism 6, defective product removal mechanism 7, etc.) are in normal working condition and have no damage or malfunction.

[0046] Calibrate instruments: Calibrate instruments involved in measurement (such as photoelectric sensors, displacement sensors, etc.) to ensure the accuracy of measurement results.

[0047] Sample preparation: Place the single-face corrugated cardboard 12 to be tested on the conveyor mechanism 1 to ensure that the cardboard can enter the testing area smoothly.

[0048] 2. Start detection

[0049] Start the conveyor belt: Start the conveyor belt mechanism 1 to make the single-faced corrugated cardboard 12 to be inspected start to move.

[0050] Positioning the cardboard: The telescopic motor 31 in the positioning mechanism 3 drives the connecting rod 32 and the positioning plate 33 to accurately position the cardboard, ensuring that the cardboard maintains a stable position during the detection process.

[0051] 3. Specification and size inspection

[0052] Length Detection: Photoelectric sensor 1 42 in length detection mechanism 4 measures the length of the cardboard by sensing the obstruction of the cardboard edge. When the cardboard passes, photoelectric sensor 1 42 transmits the detected signal to the control panel for data processing.

[0053] Thickness detection: The elastic telescopic rod 52 in the thickness detection mechanism 5 is compressed and extended when the cardboard passes through, driving the displacement sensor 53 to generate displacement signals. These signals are transmitted to the control panel 10 for calculating the thickness of the cardboard.

[0054] Width detection: A width detection channel is formed by the photoelectric sensor 2 91 installed on the inner wall. When the edges of the cardboard block the corresponding photoelectric sensor 2 91, the width of the cardboard is measured.

[0055] 4. Data processing and judgment

[0056] Data collection: The control panel 10 collects measurement data from various detection mechanisms.

[0057] Data analysis: Compare and analyze the collected data with the preset specification and size standards.

[0058] Result judgment: Based on the results of comparative analysis, determine whether the cardboard is qualified.

[0059] 5. Marking and Removal

[0060] Unqualified product marking: If the cardboard is judged as unqualified, the control panel 10 will send a command to the unqualified product marking mechanism 6. The telescopic motor 2 62 drives the connecting rod 2 64 and the seal 63 to descend, and stamp the unqualified product on the cardboard.

[0061] Removal of defective products: Subsequently, the telescopic motor 3 71 drives the connecting rod 3 72 and the push plate 73 forward, pushing the defective products from the conveyor belt mechanism 1 to the defective product collection table 11.

[0062] 6. Collection of qualified products

[0063] Continue to convey: For the corrugated cardboards that pass the inspection, they will continue to move forward along the conveyor belt mechanism 1.

[0064] Collection and processing: The products finally arrive at the qualified product collection station 8 and are collected and processed by staff.

[0065] 7. End and record

[0066] End of detection: After all the single-face corrugated paperboards 12 to be detected have completed the detection, the conveyor belt mechanism 1 and the detection device are closed.

[0067] Record data: Record and save the data collected during the inspection process (including the number, specifications and dimensions of qualified and unqualified products, etc.) for subsequent analysis and improvement.

[0068] Through the detailed description of the above work flow, it can be ensured that the single-faced corrugated cardboard specification and size detection device can complete the detection task efficiently and accurately, thereby improving production efficiency and product quality.

[0069] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0070] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A device for detecting the size of single-faced corrugated cardboard, characterized by: The invention comprises a conveyor belt mechanism (1), a qualified product collecting platform (8), a unqualified product collecting platform (11), a positioning mechanism (3), a length detection mechanism (4), a thickness detection mechanism (5), a width detection mechanism (9), an unqualified product identification mechanism (6) and an unqualified product removal mechanism (7), wherein mounting frames (2) are respectively installed on the front and rear sides of a frame of the conveyor belt mechanism (1), and the positioning mechanism (3), the length detection mechanism (4), the thickness detection mechanism (5), the width detection mechanism (9), the unqualified product identification mechanism (6) and the unqualified product removal mechanism (7) are installed in sequence along the conveying direction of the conveyor belt mechanism (1). On the mounting frame (2), the qualified product collection platform (8) is arranged against the rear end of the frame of the conveyor belt mechanism (1); a control panel (10) is installed on the outer side wall of the front mounting frame (2); a notch (21) is opened at the right end of the rear mounting frame (2) at a position corresponding to the unqualified product removal mechanism (7); the unqualified product collection platform (11) is arranged outside the notch (21) position of the mounting frame (2); and the positioning mechanism (3), the length detection mechanism (4), the thickness detection mechanism (5), the width detection mechanism (9), the unqualified product identification mechanism (6) and the unqualified product removal mechanism (7) are all connected to the control panel (10).

2. The device for detecting the size of single-faced corrugated cardboard according to claim 1, characterized in that: The positioning mechanism (3) comprises two telescopic motors (31), two connecting rods (32) and two positioning plates (33). The two telescopic motors (31) are symmetrically mounted on the outer side walls of the two mounting frames (2) in a front-to-back manner. The output ends of the two telescopic motors (31) are respectively fixedly connected to one end of the corresponding connecting rod (32). The other ends of the two connecting rods (32) pass through the corresponding mounting frames (2) and are fixedly connected to the corresponding positioning plates (33). A guide channel for the single-faced corrugated cardboard (12) is formed between the two positioning plates (33). The two telescopic motors (31) are both connected to the control panel (10).

3. The device for detecting the size of single-faced corrugated cardboard according to claim 2, characterized in that: The length detection mechanism (4) comprises a mounting frame (41) and a plurality of photoelectric sensors (42). The mounting frame (41) is an inverted U-shaped frame structure. The lower ends of the mounting frame (41) are respectively fixed on two mounting frames (2). The plurality of photoelectric sensors (42) are evenly arranged above the conveyor mechanism (1) in the front-back direction. The plurality of photoelectric sensors (42) are all mounted on the mounting frame (41). The plurality of photoelectric sensors (42) are all connected to the control panel (10).

4. The device for detecting the size of single-faced corrugated cardboard according to claim 3, characterized in that: The thickness detection mechanism (5) comprises a second mounting frame (51), a plurality of elastic telescopic rods (52) and a plurality of displacement sensors (53). The second mounting frame (51) is an inverted U-shaped frame structure. The lower ends of the second mounting frame (51) are respectively fixed on the two mounting frames (2). The plurality of elastic telescopic rods (52) are evenly distributed and vertically downwardly arranged on the lower end surface of the crossbeam of the second mounting frame (51). The plurality of displacement sensors (53) are respectively arranged at the lower ends of the corresponding elastic telescopic rods (52). The plurality of displacement sensors (53) are all connected to the control panel (10).

5. The device for detecting the size of single-faced corrugated cardboard according to claim 4, characterized in that: The width detection mechanism (9) includes two photoelectric sensors (91) arranged on the inner side walls of two mounting frames (2) in a front-to-rear manner. Both photoelectric sensors (91) are connected to the control panel (10).

6. The device for detecting the size of single-face corrugated cardboard according to claim 5, characterized in that: The unqualified product identification mechanism (6) includes a mounting frame (3) (61), a telescopic motor (2) (62) and a seal (63). The mounting frame (3) (61) is an inverted U-shaped frame structure. The lower ends of the mounting frame (3) (61) are respectively fixed on the two mounting frames (2). The telescopic motor (2) (62) is installed on the upper end of the crossbeam of the mounting frame (3) (61). The output end of the telescopic motor (2) (62) is fixedly connected to one end of the connecting rod (2) (64). The other end of the connecting rod (64) vertically passes through the mounting frame (61) and is fixedly connected to the seal (63). The telescopic motor (2) (62) is connected to the control panel (10).

7. The device for detecting the size of single-face corrugated cardboard according to claim 6, characterized in that: The defective product removal mechanism (7) comprises a telescopic motor (71), a connecting rod (72) and a push plate (73). The telescopic motor (71) is mounted on the rear end outer wall of the front mounting frame (2). The output end of the telescopic motor (71) is fixedly connected to one end of the connecting rod (72). The other end of the connecting rod (72) passes through the front mounting frame (2) and is fixedly connected to the push plate (73).

8. The device for detecting the size of single-face corrugated cardboard according to claim 7, characterized in that: The qualified product collection platform (8) is at the same height as the conveyor belt mechanism (1). A collection notch is provided on the qualified product collection platform (8), and the collection notch is arranged opposite to the rear end of the conveyor belt mechanism (1).

9. The device for detecting the size of single-face corrugated cardboard according to claim 8, characterized in that: The unqualified product collection platform (11) has the same structure as the qualified product collection platform (8) and is at the same height as the conveyor belt mechanism (1). The collection notch on the unqualified product collection platform (11) is arranged opposite to the notch (21) on the rear mounting frame (2).

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