Detection device and method for carton production

Abstract

The invention relates to the technical field of carton processing, in particular to a detection device for carton production and a method thereof.The detection device comprises a base, an infrared projection part is fixedly arranged at the top of the base, a first reflection part is movably arranged at the top of the base, and a second reflection part is movably arranged at the top of the base. Whether the bottom of the sample carton is a qualified rectangle or not can be judged by observing whether infrared rays emitted by a bottom infrared projector and infrared rays reflected for three times coincide with four side lines of the bottom of the sample carton or not, and if one infrared ray does not coincide with the corresponding side line of the sample carton, the sample carton is in the shape of the qualified rectangle. If the shape of the sample carton does not meet the standard, the production is unqualified, and similarly, the infrared rays emitted by the bottom reflecting prism and reflected by the three top reflecting prisms can be used for carrying out regularity detection on the four side lines of the top of the sample carton, so that the regularity of the sample carton can be detected by detecting the four upper and lower side lines; whether the sample carton is a standard rectangular carton or not is comprehensively judged, and the detection accuracy is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of carton processing, and in particular to a detection device and method for carton production. Background Art

[0002] Cartons are the most widely used packaging products. According to different materials, there are corrugated boxes, single-layer cardboard boxes, etc., with various specifications and models. As an indispensable part of modern logistics, packaging cartons bear the important responsibilities of packaging, protecting products, and aesthetics. The physical performance indicators of packaging cartons become the basis for their quality evaluation. Stable working environment conditions ensure the accuracy and reliability of test data. Cartons are usually cut into specified sizes by die-cutting devices and then folded into box shapes; After the carton is die-cut, it is necessary to test the die-cut carton samples to determine whether the size and shape of the carton meet the specification requirements, so as to decide whether to mass-produce it. At present, factories generally use angle rulers and naked eyes to inspect cartons, and the cost of manual inspection is high. In addition, the efficiency and accuracy of this inspection method are relatively limited. Therefore, it is necessary to provide a detection device for carton production to replace manual inspection. Summary of the invention

[0003] To this end, the present invention provides a detection device and method for carton production to solve the above-mentioned problems.

[0004] The present invention provides the following technical solution: a detection device for carton production, comprising: Base; An infrared projection unit is fixedly provided on the top of the base; A first reflective portion, the top of the base is movably provided with a first reflective portion, and the first reflective portion is located at the back of the infrared projection portion; A second reflecting part, the top of the base is movably provided with a second reflecting part, and the second reflecting part is located at the right end of the first reflecting part; A third reflecting part, the top of the base is movably provided with a third reflecting part, and the third reflecting part is located at the right end of the base; A bottom infrared projector is fixedly provided on the top of the base and a top infrared projector is movably provided on the top of the base, and the bottom infrared projector and the top infrared projector are used to emit infrared rays; A bottom reflecting prism is fixedly disposed inside the first reflecting part, the second reflecting part and the third reflecting part and a top reflecting prism is movably disposed inside the first reflecting part, and the bottom reflecting prism and the top reflecting prism are used to reflect infrared rays; A dust cleaning mechanism is movably provided inside the first reflecting part, the second reflecting part and the third reflecting part, and the dust cleaning mechanism is used to clean the bottom reflecting prism and the top reflecting prism.

[0005] As a preferred solution of the present invention, a borrowing groove is opened through the upper front part of the infrared projection part, and the top infrared projector is slidably located inside the borrowing groove. The top of the infrared projection part is fixedly connected with a transfer table, and a threaded adjustment rod is screwed through the internal thread of the transfer table, and an adjustment bent rod is threadedly connected to the outer wall of the threaded adjustment rod, and the bottom of the adjustment bent rod is fixedly connected to the top of the top infrared projector.

[0006] As a preferred solution of the present invention, the upper parts of the corners of the first reflecting part, the second reflecting part and the third reflecting part are all penetrated by sliding grooves, and the insides of the sliding grooves are slidably connected with sliders, one end of the sliders is fixedly connected to the back side of the top reflecting prism, and the end of the slider away from the top reflecting prism is fixedly connected with a linkage bent bar, and the slider is fixedly connected to the inner bend of the linkage bent bar, and the outside of the top infrared projector is fixedly connected with a linkage bent bar, and there are four linkage bent bars in total, among which a first sliding square tube is slidably connected between two of the linkage bent bars distributed on the left and right, and a second sliding square tube is slidably sleeved between two of the linkage bent bars distributed on the front and back.

[0007] As a preferred solution of the present invention, the cleaning mechanism includes a fixed seat, which is fixedly connected to the top of the first reflecting part, the second reflecting part and the third reflecting part respectively, and the top of the fixed seat is fixedly connected to two telescopic sleeves, and the interior of the two telescopic sleeves is slidably connected with a cleaning rod, the cleaning rod is arranged in a bent shape, the top of the cleaning rod is commonly connected with a top ash brush, and the top ash brush is located at the top of the bottom reflecting prism, the bottom of the cleaning rod is fixedly connected with a connecting strip, the top of the connecting strip is fixedly connected with a first spring, the first spring is sleeved on the outside of the cleaning rod, and the top of the first spring is fixedly connected to the bottom of the fixed seat, the bottom of the connecting strip is fixedly connected with an abutting rod, and the outer wall of the abutting rod is commonly slidably connected with a bottom ash brush, the bottom ash brush is located at the top of the bottom reflecting prism, and the outer wall of the abutting rod is sleeved with a second spring, the second spring is fixedly connected to the top of the bottom ash brush, and the top of the second spring is fixedly connected to the bottom of the connecting strip.

[0008] As a preferred solution of the present invention, two first guide seats distributed up and down are fixedly connected to the left side surface of the infrared projection part, the back sides of the two first guide seats are fixedly connected to first guide columns, the outer walls of the two first guide columns are slidably connected to first guide sleeves, the two first guide sleeves are fixedly connected to the left side surface of the first reflecting part, and a first adapter seat is fixedly connected to the left side surface of the infrared projection part, a first adjusting screw rod is rotatably connected to the inner wall of the first adapter seat, the first adjusting screw rod is located between the two first guide columns, and a first thread sleeve is threadedly connected to the outer wall of the first adjusting screw rod, and the first thread sleeve is fixedly connected to the left side surface of the first reflecting part.

[0009] As a preferred solution of the present invention, two fourth guide seats distributed up and down are fixedly connected to the back side of the first reflecting part, and fourth guide columns are fixedly connected to one side surface of the two fourth guide seats close to the second reflecting part, and fourth guide sleeves are slidably connected to the outer walls of the two fourth guide columns, and the two fourth guide sleeves are fixedly connected to the back side of the second reflecting part.

[0010] As a preferred solution of the present invention, the front side of the third reflecting part is fixedly connected to two second guide seats distributed up and down, the two second guide seats are fixedly connected to the side surfaces close to the infrared projection part, the outer walls of the two second guide posts are slidably connected to second guide sleeves, the two second guide sleeves are fixedly connected to the front side of the infrared projection part, the front side of the infrared projection part is fixedly connected to a second adapter seat, the second adapter seat is located between the two second guide sleeves, the inner wall of the second guide sleeve is rotatably connected to a second adjusting screw rod, the outer wall of the second adjusting screw rod is threadedly connected to a second thread sleeve, and the second thread sleeve is fixedly connected to the front side of the third reflecting part.

[0011] As a preferred solution of the present invention, two third guide seats distributed up and down are fixedly connected to the side surface of the second reflecting part away from the first reflecting part, third guide columns are fixedly connected to the side surfaces of the two third guide seats close to the third reflecting part, third guide sleeves are slidably connected to the outer walls of the two third guide columns, and the two third guide sleeves are fixedly connected to the side surface of the third reflecting part away from the base.

[0012] As a preferred solution of the present invention, a rectangular area is surrounded by the infrared projection part, the first reflection part, the second reflection part and the third reflection part, the bottom reflection prism and the top reflection prism are all set at 45° to the first reflection part, the second reflection part and the third reflection part, and the three bottom reflection prisms have the same height, the three top reflection prisms have the same height, and the bottom wall of the infrared projection part, the bottom wall of the first reflection part, the bottom wall of the second reflection part and the bottom wall of the third reflection part are fixedly connected with a support block, and the support block is located at the bottom of the bottom infrared projector and the bottom reflection prism.

[0013] A detection method of a detection device for carton production, comprising the following steps: S1. According to the size of the carton, adjust the size of the rectangular space surrounded by the infrared projection part, the infrared projection part, the second reflection part and the third reflection part, and by rotating the first adjusting screw rod, the first reflection part is pushed to move toward the infrared projection part under the threaded connection with the first thread sleeve, and at the same time, under the sliding guidance of the first guide column and the first guide sleeve, the first reflection part moves toward the infrared projection part more stably. During the movement of the first reflection part, the second reflection part is further driven to move synchronously with the first reflection part under the connection between the fourth guide seat, the fourth guide column and the fourth guide sleeve, so that the second reflection part gradually approaches the third reflection part, and by rotating the second adjusting screw rod, the third reflection part is pushed to move toward the base under the threaded connection with the second thread sleeve, and under the sliding guidance of the two second guide columns and the second guide sleeve, the movement of the third reflection part is more stable, and during the movement of the third reflection part, the third reflection part is driven by the third guide seat, the third Under the connection between the guide column and the third guide sleeve, the second reflective part and the third reflective part are further driven to move synchronously, so that the second reflective part gradually approaches the first reflective part, thereby adjusting the size of the rectangular area surrounded by the infrared projection part, the first reflective part, the second reflective part and the third reflective part, so as to be suitable for the detection of cartons of different specifications. When the rectangular area surrounded by the infrared projection part, the first reflective part, the second reflective part and the third reflective part is adjusted to a size suitable for the detection carton, the inspector places the carton sample from the top on the top of the four support blocks. At this time, the sample carton is just located between the infrared projection part, the first reflective part, the second reflective part and the third reflective part. The position of the sample carton is slightly adjusted so that the projection end of the bottom infrared projector is just located at one of the edge lines of the lower part of the paper. At the same time, a slight gap is left between the corners of the bottom infrared projector and the bottom reflective prism, so as not to affect the light reflection of the bottom reflective prism; S2. After the position of the carton is adjusted, the inspector rotates the threaded adjustment rod so that it pushes the borrowing slot up or down under the threaded connection with the adjusting bent rod, and further adjusts the height of the top infrared projector, and adjusts the height of the emitting end of the top infrared projector to correspond to a top edge line of the sample carton. During this period, the top infrared projector will drive a linked bent bar connected to it to move synchronously, so that under the connection of the two first sliding square tubes and the two second sliding square tubes, the remaining three linked bent bars are further moved, and the three sliders are driven to slide along the inside of the three slide grooves, and the heights of the three top reflective prisms are synchronously adjusted, so that the heights of the three top reflective prisms are always consistent with the heights of the emitting end of the top infrared projector. When all adjustments are completed, the inspector starts the bottom infrared projector and the top infrared projector. The infrared rays emitted by the bottom infrared projector are just set on the bottom reflective prism inside the first reflecting part, and the infrared rays are transmitted through the bottom reflective prism. The external rays are reflected along the second side line of the bottom of the sample carton to the bottom reflection prism located inside the second reflection part, and then reflected by the bottom reflection prism and extended along the third side line of the bottom of the sample carton to the bottom reflection prism located inside the third reflection part, and then reflected by the bottom reflection prism to extend to the fourth side line of the bottom of the sample carton. The inspector can judge whether the bottom of the sample carton is a qualified rectangle by observing whether the infrared rays emitted by the bottom infrared projector and the infrared rays after three reflections coincide with the four side lines of the bottom of the sample carton. If one of the infrared rays does not coincide with the corresponding side line of the sample carton, it means that the shape of the sample carton is not compliant and the production is unqualified. Similarly, the infrared rays emitted by the bottom reflection prism and reflected by three top reflection prisms can be used to detect the regularity of the four top side lines of the sample carton. By detecting the upper and lower four side lines, it is comprehensively judged whether the sample carton is a standard rectangular box. S3. After using it for a period of time, the inspector can press the cleaning rod downward in sequence. When the cleaning rod moves downward, the top ash brush and the bottom ash brush will move downward, and the first spring will be compressed and force will be stored. When the bottom ash brush moves downward, it will clean the dust on the mirror surface of the bottom reflecting prism, thereby restoring the mirror effect of the bottom reflecting prism and ensuring the infrared ray reflection performance of the bottom reflecting prism. When the bottom of the bottom ash brush contacts the top of the supporting block, it cannot continue to move downward. During this period, if the cleaning rod continues to be pressed, the two abutment rods will slide downward inside the bottom ash brush. The second spring will be compressed and force will be stored, so that when the bottom ash brush reaches the lower dead point, it will not interfere with the continued downward movement of the top ash brush. Therefore, when the top reflecting prism is adjusted to the lower dead point, the top ash brush can still clean it and clean the dust on its mirror surface.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, by observing whether the infrared rays emitted by the bottom infrared projector and the infrared rays after three reflections coincide with the four bottom side lines of the sample carton, it is possible to determine whether the bottom of the sample carton is a qualified rectangle. If one of the infrared rays does not coincide with the corresponding sample carton side line, it means that the shape of the sample carton is not compliant and the production is unqualified. Similarly, the infrared rays emitted by the bottom reflection prism and after three reflections by the top reflection prism can be used to detect the regularity of the four top side lines of the sample carton. By detecting the upper and lower four side lines, it is comprehensively determined whether the sample carton is a standard rectangular box, thereby improving the accuracy of the detection.

[0015] 2. In the present invention, by rotating the threaded adjustment rod, the threaded connection with the adjusting bent rod can be used to push the borrowing slot up or down, thereby further adjusting the height of the top infrared projector, and adjusting the height of the emitting end of the top infrared projector to correspond to a top edge line of the sample carton. During this period, the top infrared projector will drive a linked bent bar connected thereto to move synchronously, so that under the connection of the two first sliding square tubes and the two second sliding square tubes, the remaining three linked bent bars are further moved, and the three sliders are driven to slide along the inside of the three slide grooves, so that the heights of the three top reflecting prisms are synchronously adjusted, so that the heights of the three top reflecting prisms are always consistent with the heights of the emitting end of the top infrared projector, so that the detection system can be used for the detection of cartons of different heights, thereby improving the scope of application.

[0016] 3. In the present invention, by pressing the cleaning rod downward, when the cleaning rod moves downward, the top ash brush and the bottom ash brush will move downward, and the first spring will be compressed and force will be accumulated. When the bottom ash brush moves downward, the dust on the mirror surface of the bottom reflecting prism will be cleaned, thereby restoring the mirror effect of the bottom reflecting prism and ensuring the infrared ray reflection performance of the bottom reflecting prism. When the bottom of the bottom ash brush contacts the top of the supporting block, it cannot continue to move downward. During this period, if the cleaning rod continues to be pressed, the two abutment rods will slide downward inside the bottom ash brush. The second spring will be compressed and force will be accumulated, so that when the bottom ash brush reaches the lower dead point, it will not interfere with the continued downward movement of the top ash brush. Therefore, when the top reflecting prism is adjusted to the lower dead point, the top ash brush can still clean it and clean the dust on its mirror surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The left front viewing angle structure of the present invention is shown in FIG. Figure 1 ; Figure 2 The left front viewing angle structure of the present invention is shown in FIG. Figure 2 ; Figure 3 This is a schematic diagram of the structure of the present invention from a right rear perspective; Figure 4It is a schematic diagram of infrared ray reflection of the present invention; Figure 5 for Figure 3 A schematic diagram of a partially enlarged structure of the present invention A; Figure 6 It is a schematic diagram of the unfolded structure of the linkage bending strip, the first sliding square tube and the second sliding square tube of the present invention; Figure 7 It is a schematic diagram of the structure of the first adjusting screw rod and the second adjusting screw rod of the present invention; Figure 8 The structure of the dust removal mechanism of the present invention is shown in FIG. Figure 1 ; Fig. 9 The structure of the dust removal mechanism of the present invention is shown in FIG. Figure 2 .

[0018] In the figure: 1, base; 2, infrared projection part; 201, borrowing slot; 3, first reflection part; 4, second reflection part; 5, third reflection part; 6, bottom infrared projector; 7, top infrared projector; 8, bottom reflection prism; 9, top reflection prism; 1001, first guide seat; 1002, first guide column; 1003, first guide sleeve; 1004, first adapter seat; 1005, first adjustment screw rod; 1006, first thread sleeve; 1101, second guide seat; 1102, second guide column; 1103, second guide sleeve; 1104, second adapter seat; 1105, second adjustment screw rod; 1106, second thread sleeve; 12, dust cleaning machine Structure; 1201, fixed seat; 1202, telescopic sleeve; 1203, cleaning rod; 1204, top ash brush; 1206, connecting strip; 1207, first spring; 1208, abutment rod; 1209, bottom ash brush; 1210, second spring; 13, third guide seat; 1301, third guide column; 1302, third guide sleeve; 14, fourth guide seat; 1401, fourth guide column; 1402, fourth guide sleeve; 15, slide groove; 1501, slider; 1502, linkage bending strip; 16, first sliding square tube; 17, second sliding square tube; 19, transfer table; 20, threaded adjustment rod; 21, adjustment bending rod; 22, support block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Example: See Figure 1-Figure 9A detection device for carton production shown in the figure comprises a base 1, an infrared projection part 2 is fixedly provided on the top of the base 1, a first reflection part 3 is movably provided on the top of the base 1, the first reflection part 3 is located at the back of the infrared projection part 2, a second reflection part 4 is movably provided on the top of the base 1, the second reflection part 4 is located at the right end of the first reflection part 3, a third reflection part 5 is movably provided on the top of the base 1, the third reflection part 5 is located at the right end of the base 1, a bottom infrared projector 6 is fixedly provided on the top of the base 1 and a top infrared projector 7 is movably provided, the bottom infrared projector 6 and the top infrared projector 7 are used to emit infrared rays, a bottom reflection prism 8 is fixedly provided inside the first reflection part 3, the second reflection part 4 and the third reflection part 5 and a top reflection prism 9 is movably provided inside, the bottom reflection prism 8 and the top reflection prism 9 are used to reflect infrared rays, and a dust cleaning mechanism 12 is movably provided inside the first reflection part 3, the second reflection part 4 and the third reflection part 5, the dust cleaning mechanism 12 is used to clean the bottom reflection prism 8 and the top reflection prism 9; Specifically, the inspector starts the bottom infrared projector 6 and the top infrared projector 7. The infrared rays emitted by the bottom infrared projector 6 are just set on the bottom reflection prism 8 inside the first reflection part 3. The infrared rays are reflected by the bottom reflection prism 8 along the second side line of the bottom of the sample carton to the bottom reflection prism 8 located inside the second reflection part 4. Then, after being reflected by the bottom reflection prism 8, the infrared rays are shot along the third side line of the bottom of the sample carton to the bottom reflection prism 8 located inside the third reflection part 5. Then, they are reflected by the bottom reflection prism 8 and extend directly to the fourth side line of the bottom of the sample carton. The inspector observes the infrared rays by observing the bottom reflection prism 8. By observing whether the infrared rays emitted by the bottom infrared projector 6 and the infrared rays after three reflections coincide with the four bottom side lines of the sample carton, it can be determined whether the bottom of the sample carton is a qualified rectangle. If one of the infrared rays does not coincide with the corresponding sample carton side line, it means that the shape of the sample carton is not compliant and the production is unqualified. Similarly, the infrared rays emitted by the bottom reflection prism 8 and after three reflections by the top reflection prism 9 can be used to detect the regularity of the four top side lines of the sample carton. By detecting the upper and lower four side lines, it can be comprehensively judged whether the sample carton is a standard rectangular box.

[0021] In this embodiment, refer to Figure 1-5 As shown, a borrowing slot 201 is provided through the upper front part of the infrared projection part 2, and the top infrared projector 7 is slidably located inside the borrowing slot 201. A transfer platform 19 is fixedly connected to the top of the infrared projection part 2, and a threaded adjustment rod 20 is screwed through the internal thread of the transfer platform 19, and an adjustment bent rod 21 is threadedly connected to the outer wall of the threaded adjustment rod 20, and the bottom of the adjustment bent rod 21 is fixedly connected to the top of the top infrared projector 7; Specifically, by rotating the threaded adjustment rod 20, it is threadedly connected with the adjustment bent rod 21, pushing the borrowing slot 201 up or down, and further adjusting the height of the top infrared projector 7. The height of the transmitting end of the top infrared projector 7 is adjusted to correspond to a top edge line of the sample carton, so that the detection system can be used for the detection of cartons of different heights, thereby improving the scope of application.

[0022] In this embodiment, refer to Figure 1-5 As shown, the upper parts of the corners of the first reflecting part 3, the second reflecting part 4 and the third reflecting part 5 are all penetrated with a slide groove 15, and the inside of the slide groove 15 is slidably connected with a slider 1501, one end of the slider 1501 is fixedly connected to the back of the top reflecting prism 9, and the end of the slider 1501 away from the top reflecting prism 9 is fixedly connected with a linkage bending bar 1502, and the slider 1501 is fixedly connected to the inner bending part of the linkage bending bar 1502. The outside of the top infrared projector 7 is fixedly connected with a linkage bending bar 1502, and there are four linkage bending bars 1502 in total, among which the first sliding square tube 16 is slidably connected between the two linkage bending bars 1502 distributed on the left and right, and the second sliding square tube 17 is slidably sleeved between the two linkage bending bars 1502 distributed on the front and back; Specifically, the height of the top infrared projector 7 is adjusted by rotating the threaded adjustment rod 20, and the top infrared projector 7 will drive a linked bent bar 1502 connected thereto to move synchronously, so that under the connection of the two first sliding square tubes 16 and the two second sliding square tubes 17, the remaining three linked bent bars 1502 are further moved, and the three sliders 1501 are driven to slide along the inside of the three slide grooves 15, so that the heights of the three top reflection prisms 9 are synchronously adjusted, so that the heights of the three top reflection prisms 9 are always consistent with the heights of the transmitting end of the top infrared projector 7, ensuring that the top reflection prism 9 always reflects the infrared rays emitted by the top infrared projector 7, and by setting two slide grooves 15 and the sliding connection between the two first sliding square tubes 16 and the four linked bent bars 1502, while the heights of the three top reflection prisms 9 are synchronously adjusted, there will be no interference with the position adjustment between the first reflection part 3, the second reflection part 4 and the third reflection part 5, thereby ensuring the free adjustment of the first reflection part 3, the second reflection part 4 and the third reflection part 5.

[0023] In this embodiment, refer to Figure 1-5As shown, the cleaning mechanism 12 includes a fixed seat 1201, which is fixedly connected to the top of the first reflecting part 3, the second reflecting part 4 and the third reflecting part 5 respectively, and the top of the fixed seat 1201 is fixedly connected to two telescopic sleeves 1202, and the interiors of the two telescopic sleeves 1202 are slidably connected with cleaning rods 1203, the cleaning rods 1203 are arranged in a bent shape, and the tops of the cleaning rods 1203 are commonly connected with top ash brushes 1204, and the top ash brushes 1204 are located on the top of the bottom reflecting prism 8, and the bottom ends of the cleaning rods 1203 are fixedly connected with connecting strips 1206, and the tops of the connecting strips 1206 are fixedly connected A first spring 1207 is connected, and the first spring 1207 is sleeved on the outside of the cleaning rod 1203. The top of the first spring 1207 is fixedly connected to the bottom of the fixing seat 1201. The bottom of the connecting strip 1206 is fixedly connected to the abutting rod 1208. The outer wall of the abutting rod 1208 is slidably connected with a bottom ash brush 1209. The bottom ash brush 1209 is located on the top of the bottom reflecting prism 8. The outer wall of the abutting rod 1208 is sleeved with a second spring 1210. The second spring 1210 is fixedly connected to the top of the bottom ash brush 1209. The top of the second spring 1210 is fixedly connected to the bottom of the connecting strip 1206. Specifically, after the inspection system has been used for a period of time, the inspector can press the cleaning rod 1203 downwards in sequence. When the cleaning rod 1203 moves downwards, the top dust brush 1204 and the bottom dust brush 1209 will move downwards, and the first spring 1207 will be compressed and stored. When the bottom dust brush 1209 moves downwards, it will clean the dust on the mirror surface of the bottom reflecting prism 8, thereby restoring the mirror effect of the bottom reflecting prism 8 and ensuring the infrared ray reflection performance of the bottom reflecting prism 8. When the bottom of the bottom dust brush 1209 is aligned with the support block 22, the dust on the mirror surface of the bottom reflecting prism 8 will be cleaned. After the top is contacted, it cannot move downward any further. During this period, if the cleaning rod 1203 continues to be pressed, the two abutment rods 1208 will slide downward inside the bottom dust brush 1209. The second spring 1210 is compressed and stores force, so that when the bottom dust brush 1209 reaches the lower dead point, it will not interfere with the continued downward movement of the top dust brush 1204. Therefore, when the top reflecting prism 9 is adjusted to the lower dead point, the top dust brush 1204 can still clean it and clean the dust on its mirror surface to ensure that the top reflecting prism 9 always has a good reflection effect.

[0024] In this embodiment, refer to Figure 1-5As shown, two first guide seats 1001 distributed up and down are fixedly connected to the left side surface of the infrared projection part 2, and the backs of the two first guide seats 1001 are fixedly connected to the first guide columns 1002, and the outer walls of the two first guide columns 1002 are slidably connected to the first guide sleeves 1003, and the two first guide sleeves 1003 are fixedly connected to the left side surface of the first reflection part 3. A first adapter seat 1004 is fixedly connected to the left side surface of the infrared projection part 2, and a first adjusting screw rod 1005 is rotatably connected to the inner wall of the first adapter seat 1004. The first adjusting screw rod 1005 is located between the two first guide columns 1002, and a first thread sleeve 1006 is threadedly connected to the outer wall of the first adjusting screw rod 1005, and the first thread sleeve 1006 is fixedly connected to the left side surface of the first reflection part 3. The back side of the first reflective portion 3 is fixedly connected to two fourth guide seats 14 distributed up and down, and the two fourth guide seats 14 are fixedly connected to one side surface close to the second reflective portion 4 with fourth guide posts 1401, and the outer walls of the two fourth guide posts 1401 are slidably connected to fourth guide sleeves 1402, and the two fourth guide sleeves 1402 are fixedly connected to the back side of the second reflective portion 4; The front of the third reflective portion 5 is fixedly connected to two second guide seats 1101 distributed up and down, and the two second guide seats 1101 are fixedly connected to one side surface close to the infrared projection portion 2 with second guide posts 1102, and the outer walls of the two second guide posts 1102 are slidably connected to second guide sleeves 1103, and the two second guide sleeves 1103 are fixedly connected to the front of the infrared projection portion 2, and the front of the infrared projection portion 2 is fixedly connected to a second adapter seat 1104, and the second adapter seat 1104 is located between the two second guide sleeves 1103, and the inner wall of the second guide sleeve 1103 is rotatably connected to a second adjusting screw rod 1105, and the outer wall of the second adjusting screw rod 1105 is threadedly connected to a second thread sleeve 1106, and the second thread sleeve 1106 is fixedly connected to the front of the third reflective portion 5; Two third guide seats 13 distributed up and down are fixedly connected to a side surface of the second reflective portion 4 away from the first reflective portion 3, and third guide pillars 1301 are fixedly connected to a side surface of the two third guide seats 13 close to the third reflective portion 5. Third guide sleeves 1302 are slidably connected to the outer walls of the two third guide pillars 1301, and the two third guide sleeves 1302 are fixedly connected to a side surface of the third reflective portion 5 away from the base 1; Specifically, by rotating the first adjusting screw rod 1005, the first reflecting part 3 is pushed to move toward the infrared projection part 2 under the threaded connection with the first thread sleeve 1006, and at the same time, under the sliding guidance of the first guide column 1002 and the first guide sleeve 1003, the first reflecting part 3 moves toward the infrared projection part 2 more stably. When the first reflecting part 3 moves, the second reflecting part 4 is further driven to move synchronously with the first reflecting part 3 under the connection between the fourth guide seat 14, the fourth guide column 1401 and the fourth guide sleeve 1402, so that the second reflecting part 4 gradually approaches the third reflecting part 5, and by rotating the second adjusting screw rod 1105, the first reflecting part 3 is pushed to move toward the infrared projection part 2 under the threaded connection with the first thread sleeve 1106. Under the action of the threaded connection, the third reflecting part 5 is pushed to move toward the base 1, and under the sliding guidance of the two second guide pillars 1102 and the second guide sleeve 1103, the third reflecting part 5 moves more stably. When the third reflecting part 5 moves, it is further driven by the connection between the third guide seat 13, the third guide pillar 1301 and the third guide sleeve 1302, and the second reflecting part 4 and the third reflecting part 5 move synchronously, so that the second reflecting part 4 gradually approaches the first reflecting part 3, thereby adjusting the size of the rectangular area surrounded by the infrared projection part 2, the first reflecting part 3, the second reflecting part 4 and the third reflecting part 5, so that it is suitable for the detection of cartons of different specifications.

[0025] In this embodiment, refer to Figure 1-5 As shown, a rectangular area is formed between the infrared projection part 2, the first reflection part 3, the second reflection part 4 and the third reflection part 5, and the bottom reflection prism 8 and the top reflection prism 9 are all set at 45 degrees to the first reflection part 3, the second reflection part 4 and the third reflection part 5. The heights of the three bottom reflection prisms 8 are the same, and the heights of the three top reflection prisms 9 are the same; Specifically, by setting the bottom reflecting prism 8 and the top reflecting prism 9 at 45° to the first reflecting part 3, the second reflecting part 4 and the third reflecting part 5, the infrared rays emitted by the bottom infrared projector 6 and the top infrared projector 7 are reflected by the three bottom reflecting prisms 8 and the three top reflecting prisms 9 and surround a rectangular trajectory, thereby being emitted along the edge of the sample carton, making it easy to check whether the sample carton is a rectangular box.

[0026] In this embodiment, refer to Figure 1-5 As shown, the bottom wall of the infrared projection part 2, the bottom wall of the first reflection part 3, the bottom wall of the second reflection part 4 and the bottom wall of the third reflection part 5 are all fixedly connected with a support block 22, and the support block 22 is located at the bottom of the bottom infrared projector 6 and the bottom reflection prism 8; Specifically, a support block 22 is provided to support the sample carton.

[0027] A detection method of a detection device for carton production, comprising the following steps: S1. According to the size of the carton, adjust the size of the rectangular space surrounded by the infrared projection part 2, the infrared projection part 2, the second reflection part 4 and the third reflection part 5. By rotating the first adjusting screw rod 1005, it is threadedly connected with the first thread sleeve 1006 to push the first reflection part 3 to move toward the infrared projection part 2. At the same time, under the sliding guidance of the first guide column 1002 and the first guide sleeve 1003, the first reflection part 3 moves toward the infrared projection part 2 more stably. When the first reflection part 3 moves, the fourth guide seat 14, the first guide seat 1006 and the first guide sleeve 1003 are connected. The connection between the four guide posts 1401 and the fourth guide sleeve 1402 further drives the second reflective portion 4 to move synchronously with the first reflective portion 3, so that the second reflective portion 4 gradually approaches the third reflective portion 5, and by rotating the second adjusting screw rod 1105, the third reflective portion 5 is pushed to move toward the base 1 under the threaded connection with the second thread sleeve 1106, and under the sliding guidance of the two second guide posts 1102 and the second guide sleeve 1103, the movement of the third reflective portion 5 is more stable, and when the third reflective portion 5 moves During the movement, under the connection between the third guide seat 13, the third guide column 1301 and the third guide sleeve 1302, the second reflector 4 and the third reflector 5 are further driven to move synchronously, so that the second reflector 4 gradually approaches the first reflector 3, thereby adjusting the size of the rectangular area surrounded by the infrared projection part 2, the first reflector 3, the second reflector 4 and the third reflector 5, so as to be suitable for the detection of cartons of different specifications. When the rectangular area surrounded by the infrared projection part 2, the first reflector 3, the second reflector 4 and the third reflector 5 is adjusted to a size suitable for the detection carton, the inspector places the carton sample from the top on the top of the four support blocks 22. At this time, the sample carton is just located between the infrared projection part 2, the first reflector 3, the second reflector 4 and the third reflector 5, and the position of the sample carton is slightly adjusted so that the projection end of the bottom infrared projector 6 is just located at one of the edge lines of the lower part of the paper. At the same time, a slight gap is left between the corners of the bottom infrared projector 6 and the bottom reflection prism 8, so as not to affect the light reflection of the bottom reflection prism 8; S2. After the position of the carton is adjusted, the inspector rotates the threaded adjustment rod 20 so that it pushes the borrowing slot 201 up or down under the threaded connection with the adjustment bent rod 21, and further adjusts the height of the top infrared projector 7, and adjusts the height of the emitting end of the top infrared projector 7 to correspond to a top edge line of the sample carton. During this period, the top infrared projector 7 will drive a linked bent bar 1502 connected to it to move synchronously, so that under the connection of the two first sliding square tubes 16 and the two second sliding square tubes 17, the remaining three linked bent bars 1502 are further moved, and the three sliders 1501 are driven to slide along the inside of the three slide grooves 15, and the heights of the three top reflection prisms 9 are synchronously adjusted, so that the heights of the three top reflection prisms 9 are always consistent with the heights of the emitting end of the top infrared projector 7. When all adjustments are completed, the inspector starts the bottom infrared projector 6 and the top infrared projector 7. The infrared rays emitted by the bottom infrared projector 6 are just set at the bottom reflection prism 8 inside the first reflection part 3. The bottom reflection prism 8 reflects the infrared rays along the second bottom edge of the sample carton to the bottom reflection prism 8 located inside the second reflection part 4, and then after being reflected by the bottom reflection prism 8, it is projected along the third bottom edge of the sample carton to the bottom reflection prism 8 located inside the third reflection part 5, and then reflected by the bottom reflection prism 8 to extend the fourth bottom edge of the sample carton directly. The inspector observes whether the infrared rays emitted by the bottom infrared projector 6 and the infrared rays after three reflections coincide with the four bottom edges of the sample carton, thereby determining whether the bottom of the sample carton is a qualified rectangle. If one of the infrared rays does not coincide with the corresponding sample carton edge, it means that the shape of the sample carton is not compliant and the production is unqualified. Similarly, the infrared rays emitted by the bottom reflection prism 8 and after being reflected by three top reflection prisms 9 can be used to detect the regularity of the four top edges of the sample carton. By detecting the upper and lower four edges, it is comprehensively determined whether the sample carton is a standard rectangular box. S3. After using for a period of time, the inspector can press the cleaning rod 1203 downwards in sequence. When the cleaning rod 1203 moves downwards, the top dust brush 1204 and the bottom dust brush 1209 will move downwards, and the first spring 1207 will be compressed and stored. When the bottom dust brush 1209 moves downwards, the dust on the mirror surface of the bottom reflective prism 8 will be cleaned, thereby restoring the mirror effect of the bottom reflective prism 8 and ensuring the infrared ray reflection performance of the bottom reflective prism 8. After the part contacts the top of the support block 22, it cannot move downward any further. During this period, if the cleaning rod 1203 continues to be pressed, the two abutment rods 1208 will slide downward inside the bottom dust brush 1209, and the second spring 1210 will be compressed and accumulate force, so that when the bottom dust brush 1209 reaches the lower dead point, it will not interfere with the continued downward movement of the top dust brush 1204. Therefore, when the top reflecting prism 9 is adjusted to the lower dead point, the top dust brush 1204 can still clean it and clean the dust on its mirror surface.

[0028] When the detection device for carton production of the present invention is working, the size of the rectangular space surrounded by the infrared projection part 2, the infrared projection part 2, the second reflection part 4 and the third reflection part 5 is adjusted according to the size of the carton, and the first adjusting screw rod 1005 is rotated to make it threadedly connected with the first thread sleeve 1006, so as to push the first reflection part 3 to move toward the infrared projection part 2, and at the same time, the first reflection part 3 is guided by the sliding of the first guide column 1002 and the first guide sleeve 1003, so that the movement of the first reflection part 3 toward the infrared projection part 2 is more stable. When the first reflection part 3 moves During this period, the second reflective portion 4 and the first reflective portion 3 are further driven to move synchronously under the connection between the fourth guide seat 14, the fourth guide column 1401 and the fourth guide sleeve 1402, so that the second reflective portion 4 gradually approaches the third reflective portion 5, and by rotating the second adjusting screw rod 1105, the third reflective portion 5 is pushed to move toward the base 1 under the threaded connection with the second thread sleeve 1106, and under the sliding guidance of the two second guide columns 1102 and the second guide sleeve 1103, the movement of the third reflective portion 5 is more stable. When the third reflector 5 moves, the connection between the third guide seat 13, the third guide column 1301 and the third guide sleeve 1302 further drives the second reflector 4 and the third reflector 5 to move synchronously, so that the second reflector 4 gradually approaches the first reflector 3, thereby adjusting the size of the rectangular area surrounded by the infrared projection part 2, the first reflector 3, the second reflector 4 and the third reflector 5, so as to be suitable for the detection of cartons of different specifications. After the rectangular area surrounded by the three reflective parts 5 is adjusted to the size suitable for the inspection carton, the inspector places the carton sample on the top of the four support blocks 22 from the top. At this time, the sample carton is just located between the infrared projection part 2, the first reflective part 3, the second reflective part 4 and the third reflective part 5. The position of the sample carton is slightly adjusted so that the projection end of the bottom infrared projector 6 is just located at one of the edges of the lower part of the paper. At the same time, a slight gap is left between the corners of the bottom infrared projector 6 and the bottom reflective prism 8, so as not to affect the light reflection of the bottom reflective prism 8; After the position of the carton is adjusted, the inspector rotates the threaded adjustment rod 20 so that it pushes the borrowing slot 201 up or down under the threaded connection with the adjustment bent rod 21, and further adjusts the height of the top infrared projector 7, and adjusts the height of the emitting end of the top infrared projector 7 to correspond to a top edge line of the sample carton. During this period, the top infrared projector 7 will drive a linked bent bar 1502 connected to it to move synchronously, so that under the connection of the two first sliding square tubes 16 and the two second sliding square tubes 17, the remaining three linked bent bars 1502 are further moved, and the three sliders 1501 are driven to slide along the inside of the three slide grooves 15, and the heights of the three top reflective prisms 9 are synchronously adjusted, so that the heights of the three top reflective prisms 9 are always consistent with the heights of the emitting end of the top infrared projector 7. When all adjustments are completed, the inspector starts the bottom infrared projector 6 and the top infrared projector 7, and the infrared rays emitted by the bottom infrared projector 6 are just set on the bottom reflective prism 8 inside the first reflecting part 3. , the infrared ray is reflected along the second bottom edge of the sample carton by the bottom reflection prism 8 to the bottom reflection prism 8 located inside the second reflection part 4, and then reflected by the bottom reflection prism 8 along the third bottom edge of the sample carton to the bottom reflection prism 8 located inside the third reflection part 5, and then reflected by the bottom reflection prism 8 to extend the fourth bottom edge of the sample carton directly. The inspector observes whether the infrared ray emitted by the bottom infrared projector 6 and the infrared ray after three reflections coincide with the four bottom edges of the sample carton, so as to determine whether the bottom of the sample carton is a qualified rectangle. If one of the infrared rays does not coincide with the corresponding sample carton edge, it means that the shape of the sample carton is not compliant and the production is unqualified. Similarly, the infrared ray emitted by the bottom reflection prism 8 and reflected by three top reflection prisms 9 can be used to detect the regularity of the four top edges of the sample carton. By detecting the upper and lower four edges, it is comprehensively determined whether the sample carton is a standard rectangular box. After the inspection system has been used for a period of time, the inspector can press the cleaning rod 1203 downwards in sequence. When the cleaning rod 1203 moves downwards, the top dust brush 1204 and the bottom dust brush 1209 will move downwards, and the first spring 1207 will be compressed and stored. When the bottom dust brush 1209 moves downwards, the dust on the mirror surface of the bottom reflective prism 8 will be cleaned, thereby restoring the mirror effect of the bottom reflective prism 8 and ensuring the infrared ray reflection performance of the bottom reflective prism 8. After the bottom contacts the top of the support block 22, it cannot move further downward. During this period, if the cleaning rod 1203 continues to be pressed, the two abutment rods 1208 will slide downward inside the bottom dust brush 1209, and the second spring 1210 will be compressed and accumulate force, so that when the bottom dust brush 1209 reaches the lower dead point, it will not interfere with the continued downward movement of the top dust brush 1204. Therefore, when the top reflecting prism 9 is adjusted to the lower dead point, the top dust brush 1204 can still clean it and clean the dust on its mirror surface.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A detection device for carton production, characterized in that: Included are: Base (1); An infrared projection part (2), the infrared projection part (2) being fixedly provided on the top of the base (1), and a borrowing groove (201) penetrating the upper part of the front surface of the infrared projection part (2); A first reflecting part (3), wherein the top of the base (1) is movably provided with the first reflecting part (3), and the first reflecting part (3) is located at the back of the infrared projection part (2); a second reflecting portion (4), wherein the top of the base (1) is movably provided with the second reflecting portion (4), and the second reflecting portion (4) is located at the right end of the first reflecting portion (3); A third reflecting portion (5), wherein the top of the base (1) is movably provided with a third reflecting portion (5), and the third reflecting portion (5) is located at the right end of the base (1); A bottom infrared projector (6) is fixedly provided on the top of the base (1), and a top infrared projector (7) is movably provided on the top of the base (1), wherein the bottom infrared projector (6) and the top infrared projector (7) are used to emit infrared rays; A bottom reflecting prism (8) is fixedly provided inside the first reflecting portion (3), the second reflecting portion (4) and the third reflecting portion (5), and a top reflecting prism (9) is movably provided inside the first reflecting portion (3), the second reflecting portion (4) and the third reflecting portion (5), wherein the bottom reflecting prism (8) and the top reflecting prism (9) are used to reflect infrared rays; The first reflecting part (3), the second reflecting part (4) and the third reflecting part (5) are all provided with a dust cleaning mechanism (12) inside, and the dust cleaning mechanism (12) is used to clean the bottom reflecting prism (8) and the top reflecting prism (9). The top infrared projector (7) is slidably located inside the borrowing slot (201). The top of the infrared projector (2) is fixedly connected with a transfer platform (19). The internal thread of the transfer platform (19) is threadedly connected with a threaded adjustment rod (20). The outer wall of the threaded adjustment rod (20) is threadedly connected with an adjustment bent rod (21). The bottom of the adjustment bent rod (21) is fixedly connected with the top of the top infrared projector (7). The first reflecting part (3), the second reflecting part (4) and the third reflecting part (5) are all provided with a slide groove (15) at the upper part of the corner. The interior of the slide groove (15) is slidably connected to a slider (1501), one end of the slider (1501) is fixedly connected to the back of the top reflective prism (9), the end of the slider (1501) away from the top reflective prism (9) is fixedly connected to a linkage bent bar (1502), and the slider (1501) is fixedly connected to the inner bend of the linkage bent bar (1502), the outside of the top infrared projector (7) is fixedly connected to a linkage bent bar (1502), there are four linkage bent bars (1502), two linkage bent bars (1502) located on the left and right are slidably connected to a first sliding square tube (16), and two linkage bent bars (1502) located on the front and back are slidably sleeved to a second sliding square tube (17).

2. A detection device for carton production according to claim 1, characterized in that: The cleaning mechanism (12) comprises a fixed seat (1201), wherein the fixed seat (1201) is fixedly connected to the top of the first reflecting part (3), the second reflecting part (4) and the third reflecting part (5), respectively; the top of the fixed seat (1201) is fixedly connected to two telescopic sleeves (1202), the interiors of the two telescopic sleeves (1202) are slidably connected to cleaning rods (1203), the cleaning rods (1203) are arranged in a bent shape, the tops of the cleaning rods (1203) are commonly connected to top dust brushes (1204), the top dust brushes (1204) are located on the top of the bottom reflecting prism (8), the bottom ends of the cleaning rods (1203) are fixedly connected to connecting strips (1206), the tops of the connecting strips (1206) are fixedly connected A first spring (1207) is provided, the first spring (1207) is sleeved on the outside of the cleaning rod (1203), and the top of the first spring (1207) is fixedly connected to the bottom of the fixing seat (1201), the bottom of the connecting strip (1206) is fixedly connected to an abutment rod (1208), the outer wall of the abutment rod (1208) is slidably connected to a bottom dust brush (1209), the bottom dust brush (1209) is located at the top of the bottom reflecting prism (8), and a second spring (1210) is sleeved on the outer wall of the abutment rod (1208), the second spring (1210) is fixedly connected to the top of the bottom dust brush (1209), and the top of the second spring (1210) is fixedly connected to the bottom of the connecting strip (1206).

3. A carton production detection device according to claim 2, characterized in that: Two first guide seats (1001) distributed up and down are fixedly connected to the left side surface of the infrared projection part (2); the back surfaces of the two first guide seats (1001) are fixedly connected to first guide posts (1002); the outer walls of the two first guide posts (1002) are slidably connected to first guide sleeves (1003); the two first guide sleeves (1003) are fixedly connected to the left side surface of the first reflection part (3); a first adapter seat (1004) is fixedly connected to the left side surface of the infrared projection part (2); a first adjusting screw rod (1005) is rotatably connected to the inner wall of the first adapter seat (1004); the first adjusting screw rod (1005) is located between the two first guide posts (1002); a first thread sleeve (1006) is threadedly connected to the outer wall of the first adjusting screw rod (1005); and the first thread sleeve (1006) is fixedly connected to the left side surface of the first reflection part (3).

4. A detection device for carton production according to claim 3, characterized in that: The back side of the first reflecting part (3) is fixedly connected to two fourth guide seats (14) distributed up and down, and the two fourth guide seats (14) are fixedly connected to a fourth guide column (1401) on one side surface close to the second reflecting part (4), and the outer walls of the two fourth guide columns (1401) are slidably connected to a fourth guide sleeve (1402), and the two fourth guide sleeves (1402) are fixedly connected to the back side of the second reflecting part (4).

5. A carton production detection device according to claim 4, characterized in that: The front face of the third reflective portion (5) is fixedly connected to two second guide seats (1101) distributed up and down; the two second guide seats (1101) are fixedly connected to a second guide column (1102) on one side surface close to the infrared projection portion (2); the outer walls of the two second guide columns (1102) are slidably connected to a second guide sleeve (1103); the two second guide sleeves (1103) are fixedly connected to the front face of the infrared projection portion (2); the front face of the infrared projection portion (2) is fixedly connected to a second adapter seat (1104); the second adapter seat (1104) is located between the two second guide sleeves (1103); the inner wall of the second guide sleeve (1103) is rotatably connected to a second adjusting screw rod (1105); the outer wall of the second adjusting screw rod (1105) is threadedly connected to a second thread sleeve (1106); the second thread sleeve (1106) is fixedly connected to the front face of the third reflective portion (5).

6. A carton processing detection system according to claim 5, characterized in that: Two third guide seats (13) distributed up and down are fixedly connected to a side surface of the second reflective portion (4) away from the first reflective portion (3); third guide columns (1301) are fixedly connected to a side surface of the two third guide seats (13) close to the third reflective portion (5); third guide sleeves (1302) are slidably connected to the outer walls of the two third guide columns (1301); and the two third guide sleeves (1302) are fixedly connected to a side surface of the third reflective portion (5) away from the base (1).

7. A carton production detection device according to claim 6, characterized in that: The infrared projection part (2), the first reflection part (3), the second reflection part (4) and the third reflection part (5) surround a rectangular area; the bottom reflection prism (8) and the top reflection prism (9) are all arranged at 45 degrees to the first reflection part (3), the second reflection part (4) and the third reflection part (5); the three bottom reflection prisms (8) are all of the same height; the three top reflection prisms (9) are all of the same height; the bottom wall of the infrared projection part (2), the bottom wall of the first reflection part (3), the bottom wall of the second reflection part (4) and the bottom wall of the third reflection part (5) are all fixedly connected with a support block (22); the support block (22) is located at the bottom of the bottom infrared projector (6) and the bottom reflection prism (8).

8. The detection method of the detection device for carton production according to claim 7, characterized in that: The usage steps include the following: S1. According to the size of the carton, the size of the rectangular space enclosed by the infrared projection part (2), the infrared projection part (2), the second reflection part (4) and the third reflection part (5) is adjusted. The first adjusting screw rod (1005) is rotated so that the first reflection part (3) is pushed to move toward the infrared projection part (2) under the threaded connection with the first thread sleeve (1006). At the same time, the first reflection part (3) is guided by the sliding of the first guide column (1002) and the first guide sleeve (1003), so that the movement of the first reflection part (3) toward the infrared projection part (2) is more stable. When the first reflection part (3) moves, the fourth guide seat (14) The connection between the second guide column (1401) and the fourth guide sleeve (1402) further drives the second reflective portion (4) and the first reflective portion (3) to move synchronously, so that the second reflective portion (4) gradually approaches the third reflective portion (5), and by rotating the second adjusting screw rod (1105), the third reflective portion (5) is pushed to move toward the base (1) under the action of the threaded connection with the second screw sleeve (1106), and under the sliding guidance of the two second guide columns (1102) and the second guide sleeve (1103), the movement of the third reflective portion (5) is more stable, and when the third reflective portion (5) (5) During the movement, the connection between the third guide seat (13), the third guide column (1301) and the third guide sleeve (1302) further drives the second reflective portion (4) and the third reflective portion (5) to move synchronously, so that the second reflective portion (4) gradually approaches the first reflective portion (3), thereby adjusting the size of the rectangular area surrounded by the infrared projection portion (2), the first reflective portion (3), the second reflective portion (4) and the third reflective portion (5), so as to be suitable for the detection of cartons of different specifications. When the infrared projection portion (2), the first reflective portion (3), the second reflective portion (4) and After the rectangular area surrounded by the third reflective portion (5) is adjusted to fit the size of the test carton, the inspector places the carton sample from the top on the top of the four support blocks (22). At this time, the sample carton is just located between the infrared projection portion (2), the first reflective portion (3), the second reflective portion (4) and the third reflective portion (5). The position of the sample carton is slightly adjusted so that the projection end of the bottom infrared projector (6) is just located at one of the edges of the lower part of the paper. At the same time, a slight gap is left between the corners of the bottom infrared projector (6) and the bottom reflective prism (8), so as not to affect the light reflection of the bottom reflective prism (8); S2. After the position of the carton is adjusted, the inspector rotates the threaded adjustment rod (20) so that it pushes the positioning slot (201) upward or downward under the threaded connection with the adjustment curved rod (21), and further adjusts the height of the top infrared projector (7). The height of the transmitting end of the top infrared projector (7) is adjusted to correspond to a top edge line of the sample carton. During this period, the top infrared projector (7) will drive a linkage curved strip (1502) connected thereto to move synchronously, so that the two first sliding square tubes (16) and the two second sliding square tubes (17 ), the remaining three linkage curved bars (1502) are further moved, and the three sliders (1501) are driven to slide along the inside of the three slide grooves (15), and the heights of the three top reflection prisms (9) are synchronously adjusted, so that the heights of the three top reflection prisms (9) are always consistent with the height of the emission end of the top infrared projector (7). When all adjustments are completed, the inspector starts the bottom infrared projector (6) and the top infrared projector (7), and the infrared rays emitted by the bottom infrared projector (6) are just set inside the first reflection part (3). The infrared rays are reflected by the bottom reflection prism (8) along the second side line of the bottom of the sample carton to the bottom reflection prism (8) located inside the second reflection part (4), and then reflected by the bottom reflection prism (8) along the third side line of the bottom of the sample carton to the bottom reflection prism (8) located inside the third reflection part (5), and then reflected by the bottom reflection prism (8) to extend to the fourth side line of the bottom of the sample carton. The inspector observes the infrared rays emitted by the bottom infrared projector (6) and the three Whether the infrared ray after the first reflection coincides with the four side lines at the bottom of the sample carton can be judged whether the bottom of the sample carton is a qualified rectangle. If one of the infrared rays does not coincide with the corresponding side line of the sample carton, it means that the shape of the sample carton is not compliant and the production is unqualified. Similarly, the infrared ray emitted by the bottom reflection prism (8) and reflected by the three top reflection prisms (9) can be used to detect the regularity of the four top side lines of the sample carton. By detecting the upper and lower four side lines, it is comprehensively judged whether the sample carton is a standard rectangular box. S3. After using for a period of time, the inspector can press the cleaning rod (1203) downwards in sequence. When the cleaning rod (1203) moves downwards, the top dust brush (1204) and the bottom dust brush (1209) will move downwards, and the first spring (1207) will be compressed and stored. When the bottom dust brush (1209) moves downwards, it will clean the dust on the mirror surface of the bottom reflective prism (8), thereby restoring the mirror effect of the bottom reflective prism (8) and ensuring the infrared ray reflection performance of the bottom reflective prism (8). When the bottom dust brush (1209) After the bottom contacts the top of the support block (22), it cannot move further downward. During this period, if the cleaning rod (1203) continues to be pressed, the two abutment rods (1208) will slide downward inside the bottom dust brush (1209). The second spring (1210) is compressed and stores force, so that when the bottom dust brush (1209) reaches the lower dead point, it will not interfere with the continued downward movement of the top dust brush (1204). Therefore, when the top reflective prism (9) is adjusted to the lower dead point, the top dust brush (1204) can still clean it and clean the dust on its mirror surface.

Images