A wet wipe detection device

Abstract

The application relates to the technical field of wet tissue production equipment, and the wet tissue detection device comprises a rack, the upper surface of the rack is fixedly connected with a conveying mechanism, the conveying mechanism can send a wet tissue body to be detected into a detection area along a specified direction, one side of the conveying mechanism is fixedly connected with a machine box, a liquid crystal touch screen is installed in the machine box, the upper surface of the conveying mechanism is fixedly connected with a light box for providing a light source, the surface of the light box is fixedly connected with a support, an industrial camera one is fixedly connected to the support, a material pushing air cylinder is fixedly connected to the inner wall of the support, and the upper surface of the conveying mechanism is provided with a posture adjusting device for adjusting the posture of the wet tissue body. The wet tissue detection device solves the problems that when the wet tissue passes through the detection area, part of the packaging corners exceeds the ROI detection range, the packaging defects in the exceeding area cannot be effectively identified, and finally the detection is missed, resulting in inaccurate overall detection result.

Description

Technical Field

[0001] This invention belongs to the technical field of wet wipe production equipment, specifically relating to a wet wipe testing device. Background Technology

[0002] The wet wipe testing device is a core online quality inspection equipment on the production line of disposable hygiene products such as wet wipes, cotton wipes, makeup remover wipes, and disinfectant wipes. It is installed after the packaging process and before the finished products are put into storage. It is used to carry out full-dimensional automated quality inspection of the whole package of finished products and automatically remove defective products. It is a key piece of equipment to ensure the product qualification rate, prevent unqualified products from entering the market, and improve the level of production automation.

[0003] Existing wet wipe appearance inspection devices generally use fixed industrial cameras for visual inspection. To filter out background colors generated by the conveyor belt and reduce unnecessary computing power consumption, a fixed rectangular ROI (Region of Interest) is usually set, and defects are only identified within the framed area. However, wet wipes are lightweight and flexible packaging, which is easily affected by factors such as feeding alignment deviation and airflow disturbance during the conveyor process. As a result, when the wet wipes pass through the inspection area, some packaging corners are outside the ROI inspection range. Packaging defects outside the area cannot be effectively identified, resulting in missed detections and inaccurate overall inspection results. Summary of the Invention

[0004] The purpose of this invention is to provide a wet wipe detection device with a simple structure and reasonable design in order to solve the above-mentioned problems.

[0005] The present invention achieves the above objectives through the following technical solutions: A wet wipe detection device includes a frame, a conveying mechanism fixedly connected to the upper surface of the frame, the conveying mechanism being able to feed the wet wipe body to be detected into the detection area along a specified direction, a chassis fixedly connected to one side of the conveying mechanism, the chassis integrating a controller, including but not limited to control modules such as PLC and microcontroller, the chassis being equipped with an LCD touch screen, a light box for providing light source fixedly connected to the upper surface of the conveying mechanism, a bracket fixedly connected to the surface of the light box, an industrial camera fixedly connected to the bracket, the industrial camera being able to perform visual recognition detection on the passing wet wipe body, a top-feeding cylinder fixedly connected to the inner wall of the bracket, and a feeding structure provided on the other side of the conveying mechanism opposite to the top-feeding cylinder, when the industrial camera detects that the packaging of the wet wipe body is unqualified, the controller controls the top-feeding cylinder to work, so that the top-feeding cylinder can push the unqualified wet wipe body into the feeding structure, thereby rejecting the unqualified product, the upper surface of the conveying mechanism is provided with a posture adjustment device for adjusting the posture of the wet wipe body; The attitude adjustment device includes a gantry-type mounting bracket fixed to the upper surface of the conveying mechanism. A proximity switch is fixedly connected to the inner wall of the gantry-type mounting bracket, and a horizontal plate is fixedly connected to the inner wall of the gantry-type mounting bracket. An industrial camera for identifying the attitude of the wet wipe body is fixedly connected to the upper surface of the horizontal plate. A motor serving as a power source is fixedly connected to the upper surface of the gantry-type mounting bracket. A sleeve is fixedly connected to the output end of the motor. An optical axis is fixedly connected to the outer circumferential surface of the sleeve. The optical axis can be installed at the output end of the motor through the sleeve, so that the motor can drive the optical axis to move. A connecting bracket is slidably connected to the surface of the optical axis. A push rod is slidably connected to the inner wall of the gantry-type mounting bracket. The upper end of the connecting bracket and the push rod are rotatably connected. When the optical axis is driven by the motor under the action of the sleeve, the optical axis can cooperate with the connecting bracket to move the push rod, thereby causing the push rod to move along the guiding direction of the gantry-type mounting bracket.

[0006] As a further optimization of the present invention, a limiting ring is fixedly connected to one end of the optical axis away from the sleeve. The limiting ring can block the end of the optical axis and constrain the movement range of the connecting frame. A positioning sleeve is fixedly connected to the surface of the push rod. The portal frame is slidably connected to the upper end face of the positioning sleeve. A bracket is fixedly connected to the upper surface of the portal frame. A baffle is fixedly connected to the side of the portal frame. The motor is fixedly connected to the inner wall of the bracket. The bracket can fix the motor on the portal frame, thereby ensuring the stability of the motor in the working state.

[0007] As a further optimization of the present invention, a circular hole is provided on the surface of the horizontal plate, and the camera of the second industrial camera passes through the circular hole through the lower surface of the horizontal plate, so that the camera of the second industrial camera can be aligned with the conveying mechanism. A guide hole is provided on the surface of the horizontal plate, and the push rod slides through the guide hole. A guide boss is provided on the upper surface of the horizontal plate, and a groove is provided on the lower end face of the positioning sleeve. The positioning sleeve is slidably connected to the guide boss through the groove. Through the cooperation of the positioning sleeve and the groove, the gantry mounting bracket and the horizontal plate can assist in guiding the movement direction of the push rod. At the same time, the push rod can be locked to prevent the push rod from rotating during movement.

[0008] As a further optimization of the present invention, two optical axes are provided, and the two optical axes are arranged in parallel with the output axis of the motor as the axis of symmetry. The number of connecting frames and push rods is equal to the number of optical axes. The diameter of the pushing end of each push rod is smaller than the diameter of its guiding end. The distance between the two push rods corresponds to the width of the wet wipe body. When the two push rods pass through the wet wipe body, the two push rods can push the wet wipe body, thereby adjusting the posture of the tilted wet wipe body on the conveying mechanism.

[0009] As a further optimization of the present invention, a dust removal device is provided on the horizontal plate. The dust removal device includes a fixing frame fixed to the side of the horizontal plate. One end of a telescopic airbag is fixedly connected to the inner side of the fixing frame. A connecting frame is fixedly connected between the other end of the telescopic airbag and the push rod. A filter is provided at the air inlet end of the telescopic airbag. A transparent cover is fixedly connected to the lower surface of the horizontal plate. The transparent cover is located below the camera of the second industrial camera. The transparent cover can isolate the camera of the second industrial camera from the external environment, thereby protecting the camera of the second industrial camera. Air blowers are provided on both sides of the transparent cover. A guide tube is fixedly connected between the air outlet end of the telescopic airbag and the air inlet end of the air blower. A one-way valve is provided inside both the air inlet end and the air outlet end of the telescopic airbag. When the telescopic airbag is compressed, the gas inside can only be discharged through the air outlet end. Conversely, the external gas can only enter the telescopic airbag through the air inlet end. A limit frame is fixedly connected between the horizontal plate and the guide tube to support the suspended position of the guide tube, thereby increasing the stability of the guide tube.

[0010] As a further optimization of the present invention, the filter includes a filter element fixed to the air inlet end of the telescopic airbag. A housing is fixedly connected to the surface of the filter element. The housing has multiple air inlets, which are evenly distributed in a circular array around the central axis of the housing. When the telescopic airbag inhales, the filter element at its air inlet end can work with the housing to filter the gas entering the telescopic airbag, thereby ensuring the cleanliness of the gas entering the telescopic airbag.

[0011] As a further optimization of the present invention, the air blowing outlet includes an outlet body fixed to the side surface of the transparent cover. The upper surface of the outlet body is provided with a fixing hole adapted to the guide tube connector. The interior of the outlet body is provided with an air cavity communicating with the fixing hole. The lower end of the outlet body facing the transparent cover is provided with a plurality of air outlets communicating with the air cavity. The air cavity can evenly distribute the gas injected by the guide tube to the air outlets. The end face of the air outlet is parallel to the lower surface of the transparent cover, so that when air is blown, the gas can flow along the lower surface of the transparent cover, thereby cleaning the dust attached to the lower surface of the transparent cover.

[0012] As a further optimization of the present invention, an assisting device for fixing the connecting wire harness is provided between the gantry mounting frame and the horizontal plate. The assisting device includes a back plate fixed between the gantry mounting frame and the horizontal plate. A square hole is opened on the surface of the back plate. A locking pin is fixedly connected to the inner side wall of the square hole. An assembly frame is slidably connected inside the square hole. A positioning rack adapted to the locking pin is slidably connected to the inner wall of the assembly frame. The position of the assembly frame can be locked by the cooperation of the locking pin and the positioning rack. A telescopic rod and a spring are fixedly connected between the positioning rack and the assembly frame. A pressing block is fixedly connected to the side of the positioning rack away from the assembly frame. A horizontal column is fixedly connected to one end of the assembly frame. A supplementary light is fixedly connected to the end of the assembly frame away from the horizontal column. A rubber pad is fixedly connected between the horizontal column and the assembly frame. When the horizontal column and the rubber pad cooperate with the assembly frame in the locked state, the wire harness can be fixed on the back plate, thereby avoiding the problem of the wire harness being scattered and easily interfering with the movement of the posture adjustment device.

[0013] As a further optimization of the present invention, the surface of the back plate is provided with a slot for a matching guide tube. The locking pin is inserted into the toothed groove of the positioning rack. There are multiple telescopic rods, which are horizontally and equidistantly distributed with reference to the positioning rack. The telescopic rods can guide the guiding direction of the positioning rack through their own telescopic characteristics. At the same time, they can effectively buffer and absorb the rebound force generated by the spring deformation, offset the impact vibration caused by the spring rebound, prevent the positioning rack from moving due to rebound, and improve the positioning accuracy. The number of springs is equal to that of the telescopic rods. The springs are sleeved on the telescopic rods. The preload applied by the springs to the positioning rack allows it to cooperate with the assembly frame to constrain the position of the positioning rack, so that the positioning rack can cooperate with the locking pin to achieve a locking effect.

[0014] The beneficial effects of this invention are as follows: 1. Because the conveying mechanism is equipped with a posture adjustment device, the posture adjustment device can correct the wet wipes during the conveying process before the conveying mechanism sends the wet wipes into the detection area. This ensures that when the wet wipes enter the detection area, the entire packaging area is completely within the ROI of visual inspection. This eliminates the blind spot in the detection from the source and solves the problem that when the wet wipes pass through the detection area, some packaging corners are outside the ROI detection range. Packaging defects outside the area cannot be effectively identified, which ultimately leads to missed detections and inaccurate overall detection results.

[0015] 2. Because the attitude adjustment device is equipped with a dust removal device, during operation, the attitude adjustment device can drive the telescopic airbag through its movement. The airflow generated by the telescopic airbag removes dust from the lower surface of the transparent cover, maintaining the cleanliness of the lower surface of the transparent cover of the corresponding industrial camera lens. This improves the recognition accuracy of the industrial camera and avoids the problem of incorrect recognition caused by dust interference.

[0016] 3. Since the attitude adjustment device is also equipped with an assisting device, the position of the supplementary lights at different heights can be adjusted according to the specifications of the product being inspected, thereby illuminating the product and improving the clarity of the product captured by the industrial camera II; in addition, the wiring harnesses used for connecting the industrial camera II and the motor can be fixed on one side of the gantry mounting bracket to achieve neat storage of the wiring harnesses. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the wet wipe body after the posture adjustment of the present invention; Figure 3 This is a schematic diagram of the connection structure between the portal mounting frame and the back plate of the present invention; Figure 4 This is a schematic diagram of the posture adjustment device of the present invention; Figure 5 This is a schematic diagram of the connection structure between the horizontal plate and the industrial camera II of the present invention; Figure 6 This is a schematic diagram of the dust removal device of the present invention; Figure 7 This is the present invention. Figure 6 Enlarged view of the structure at point A in the middle; Figure 8 This is a schematic diagram of the structure of the filter of the present invention; Figure 9 This is a schematic diagram of the air blowing device of the present invention; Figure 10 This is a schematic diagram of the structure of the assisting device of the present invention; Figure 11 This is the present invention. Figure 10 Enlarged view of the structure at point A in the middle.

[0018] In the diagram: 1. Frame; 2. Conveying mechanism; 3. Chassis; 4. LCD touch screen; 5. Light box; 6. Bracket; 7. Industrial camera one; 8. Top material cylinder; 9. Attitude adjustment device; 91. Gantry mounting bracket; 92. Horizontal plate; 93. Industrial camera two; 94. Motor; 95. Sleeve; 96. Optical axis; 97. Limit ring; 98. Connecting frame; 99. Push rod; 910. Positioning sleeve; 911. Z-shaped frame; 912. Baffle; 10. Dust removal device; 101. Fixed frame; 102. Telescopic airbag; 103. Connecting frame; 104. Filter; 10 41. Filter element; 1042. Outer shell; 105. Guide tube; 106. Transparent cover; 107. Air blower; 1071. Exhaust body; 1072. Fixing hole; 1073. Air chamber; 1074. Air outlet; 108. Limiting bracket; 11. Auxiliary device; 111. Back plate; 112. Square hole; 113. Locking pin; 114. Assembly frame; 115. Positioning rack; 116. Telescopic rod; 117. Spring; 118. Pressing block; 119. Horizontal column; 1110. Rubber pad; 1111. Supplemental light; 12. Wet wipe body; 13. Proximity switch. Detailed Implementation

[0019] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0020] Example: Please refer to Figures 1-11 A wet wipe detection device includes a frame 1, with a conveying mechanism 2 fixedly connected to the upper surface of the frame 1. The conveying mechanism 2 can feed the wet wipe body 12 to be detected into the detection area along a specified direction. A housing 3 is fixedly connected to one side of the conveying mechanism 2. The housing 3 integrates a controller, including but not limited to control modules such as PLC and microcontroller. An LCD touch screen 4 is installed on the housing 3. A light box 5 for providing a light source is fixedly connected to the upper surface of the conveying mechanism 2. A bracket 6 is fixedly connected to the surface of the light box 5, and an industrial camera is fixedly connected to the bracket 6. 7. The industrial camera 7 can perform visual recognition and detection on the wet wipe body 12. The inner wall of the bracket 6 is fixedly connected to the top material cylinder 8. The conveying mechanism 2 is provided with a feeding structure on the other side opposite to the top material cylinder 8. When the industrial camera 7 detects that the packaging of the wet wipe body 12 is unqualified, the controller controls the top material cylinder 8 to work, so that the top material cylinder 8 can push the unqualified wet wipe body 12 into the feeding structure, thereby removing the unqualified product. The upper surface of the conveying mechanism 2 is provided with a posture adjustment device 9 for adjusting the posture of the wet wipe body 12.

[0021] Please see Figure 1 , Figure 2and Figure 4 The attitude adjustment device 9 includes a gantry mounting bracket 91 fixed to the upper surface of the conveying mechanism 2. A proximity switch 13 is fixedly connected to the inner wall of the gantry mounting bracket 91. When one end of the wet wipe passes through the proximity switch 13, the proximity switch 13, in conjunction with the controller, controls the conveying mechanism 2 to decelerate. A horizontal plate 92 is fixedly connected to the inner wall of the gantry mounting bracket 91. An industrial camera 93 for identifying the attitude of the wet wipe body 12 is fixedly connected to the upper surface of the horizontal plate 92. A motor 94, serving as a power source, is fixedly connected to the upper surface of the gantry mounting bracket 91. A sleeve is fixedly connected to the output end of the motor 94. 95. A light shaft 96 is fixedly connected to the outer circumference of the sleeve 95. The light shaft 96 can be installed at the output end of the motor 94 through the sleeve 95, so that the motor 94 can drive the light shaft 96 to move. A connecting frame 98 is slidably connected to the surface of the light shaft 96. A push rod 99 is slidably connected to the inner wall of the portal frame 91. The upper end of the connecting frame 98 is rotatably connected to the push rod 99. When the light shaft 96 is driven by the motor 94 under the action of the sleeve 95, the light shaft 96 can move the push rod 99 in cooperation with the connecting frame 98, so that the push rod 99 moves along the guiding direction of the portal frame 91.

[0022] Please see Figure 4 and Figure 5 A limiting ring 97 is fixedly connected to one end of the optical axis 96 away from the sleeve 95. The limiting ring 97 can block the end of the optical axis 96 and constrain the movement range of the connecting frame 98. A positioning sleeve 910 is fixedly connected to the surface of the push rod 99. The upper end face of the gantry mounting frame 91 is slidably connected to the positioning sleeve 910. A bracket 911 is fixedly connected to the upper surface of the gantry mounting frame 91. A baffle 912 is fixedly connected to the side of the gantry mounting frame 91. The baffle 912 can cover the opening of the gantry mounting frame 91 to prevent the operator's arm from accidentally entering the gantry mounting frame 91. The motor 94 is fixedly connected to the inner wall of the bracket 911. The bracket 911 can fix the motor 94 on the gantry mounting frame 91, thereby ensuring the stability of the motor 94 in the working state.

[0023] Please see Figure 3 , Figure 4 and Figure 5 The surface of the horizontal plate 92 has a round hole. The camera of the second industrial camera 93 passes through the round hole through the lower surface of the horizontal plate 92, so that the camera of the second industrial camera 93 can be aligned with the conveying mechanism 2. The surface of the horizontal plate 92 has a guide hole, through which the push rod 99 slides. The upper surface of the horizontal plate 92 is provided with a guide boss. The lower end face of the positioning sleeve 910 is provided with a groove. The positioning sleeve 910 is slidably connected to the guide boss through the groove. Through the cooperation of the positioning sleeve 910 and the groove, the gantry mounting bracket 91 and the horizontal plate 92 can assist in guiding the movement direction of the push rod 99. At the same time, the push rod 99 can be locked to prevent the push rod 99 from rotating during movement.

[0024] Please see Figure 4 There are two optical axes 96, which are arranged in parallel with the output axis of the motor 94 as the axis of symmetry. The number of connecting frames 98 and push rods 99 is equal to the number of optical axes 96. The diameter of the pushing end of each push rod 99 is smaller than the diameter of its guide end. The distance between the two push rods 99 corresponds to the width of the wet wipe body 12. When the motor 94 drives the sleeve 95, the sleeve 95 drives the optical axes 96 on both sides. The optical axes 96 cooperate with the connecting frame 98 to move the push rods 99 on both sides. Under the guidance of the gantry mounting frame 91 and the guide hole, the push rods 99 on both sides move along the specified direction and approach the wet wipe body 12. When the push rods 99 on both sides contact the wet wipe body 12, they can push the wet wipe body 12 to rotate, thereby adjusting the posture of the inclined wet wipe body 12 on the conveying mechanism 2.

[0025] Please see Figure 3 and Figure 6 A dust removal device 10 is installed on the horizontal plate 92. The dust removal device 10 includes a fixing frame 101 fixed to the side of the horizontal plate 92. One end of a telescopic airbag 102 is fixedly connected to the inner side of the fixing frame 101. A connecting frame 103 is fixedly connected between the other end of the telescopic airbag 102 and the push rod 99. A filter 104 is installed at the air inlet end of the telescopic airbag 102. A transparent cover 106 is fixedly connected to the lower surface of the horizontal plate 92. The transparent cover 106 is located below the camera of the industrial camera 93. The transparent cover 106 can isolate the camera of the industrial camera 93 from the external environment, thereby protecting the camera of the industrial camera 93. The camera is protected by a transparent cover 106 with air outlets 107 on both sides. A guide tube 105 is fixedly connected between the air outlet of the telescopic airbag 102 and the air inlet of the air outlet 107. Both the air inlet and outlet of the telescopic airbag 102 are equipped with one-way valves. When the telescopic airbag 102 is compressed, the gas inside can only be discharged through the air outlet. Conversely, the outside gas can only enter the telescopic airbag 102 through the air inlet. A limit bracket 108 is fixedly connected between the horizontal plate 92 and the guide tube 105 to support the suspended position of the guide tube 105, thereby increasing the stability of the guide tube 105.

[0026] Please see Figure 6 and Figure 8 The filter 104 includes a filter element 1041 fixed to the air inlet end of the telescopic airbag 102. A housing 1042 is fixedly connected to the surface of the filter element 1041. The housing 1042 has multiple air inlets, which are evenly distributed in a ring array around the central axis of the housing 1042. When the telescopic airbag 102 inhales, the filter element 1041 at its air inlet end can work with the housing 1042 to filter the gas entering the telescopic airbag 102, thereby ensuring the cleanliness of the gas entering the telescopic airbag 102.

[0027] Please see Figure 6 , Figure 7 and Figure 9 The air blower 107 includes a blower body 1071 fixed to the side surface of the transparent cover 106. The upper surface of the blower body 1071 has a fixing hole 1072 adapted to the connector of the guide tube 105. The interior of the blower body 1071 has an air chamber 1073 communicating with the fixing hole 1072. The lower end of the blower body 1071 facing the transparent cover 106 has multiple air outlets 1074 communicating with the air chamber 1073. The air chamber 1073 can evenly distribute the gas injected by the guide tube 105 to the air outlets 1074. The end face of the air outlet 1074 is parallel to the lower surface of the transparent cover 106, so that when the air outlet 1074 blows air, the gas can flow along the lower surface of the transparent cover 106, thereby cleaning the dust attached to the lower surface of the transparent cover 106.

[0028] Please see Figure 3 , Figure 10 and Figure 11 An auxiliary device 11 for fixing the connecting wire harness is provided between the gantry mounting bracket 91 and the horizontal plate 92. The auxiliary device 11 includes a back plate 111 fixed between the gantry mounting bracket 91 and the horizontal plate 92. The back plate 111, the gantry mounting bracket 91, and the baffle 912 can form a semi-enclosed area and protect the structure within the semi-enclosed area. A square hole 112 is opened on the surface of the back plate 111. A locking pin 113 is fixedly connected to the inner side wall of the square hole 112. An assembly frame 114 is slidably connected inside the square hole 112. A positioning rack 115 adapted to the locking pin 113 is slidably connected to the inner wall of the assembly frame 114. Through the cooperation of the locking pin 113 and the positioning rack 115, the position of the assembly frame 114 can be locked. The positioning rack 115 is fixedly connected to the assembly frame 114. The telescopic rod 116 and spring 117, the positioning rack 115, and the pressing block 118 are fixedly connected to the side of the assembly frame 114 away from the assembly frame 114. A horizontal column 119 is fixedly connected to one end of the assembly frame 114, and a supplementary light 1111 is fixedly connected to the end of the assembly frame 114 away from the horizontal column 119. The supplementary light 1111 can provide supplementary lighting to the wet wipe body 12 when the industrial camera 2 93 is shooting, thereby improving the clarity of the image captured by the industrial camera 2 93. A rubber pad 1110 is fixedly connected between the horizontal column 119 and the assembly frame 114. When the horizontal column 119 and the rubber pad 1110 are engaged with the assembly frame 114 in the locked state, the wire harness can be fixed on the back plate 111, thereby avoiding the problem of the wire harness being scattered and easily interfering with the movement of the attitude adjustment device 9.

[0029] Please see Figure 3 , Figure 10 and Figure 11The back plate 111 has a slot for matching the guide tube 105. The locking pin 113 is inserted into the tooth groove of the positioning rack 115. There are multiple telescopic rods 116, which are horizontally and equidistantly distributed with reference to the positioning rack 115. The telescopic rods 116 can guide the direction of the positioning rack 115 through their own telescopic characteristics. At the same time, they can effectively buffer and absorb the rebound force generated by the deformation of the spring 117, offset the impact vibration caused by the rebound of the spring 117, and prevent the positioning rack 115 from moving due to rebound, thus improving the positioning accuracy. The number of springs 117 is equal to that of the telescopic rods 116. The springs 117 are sleeved on the telescopic rods 116. The preload applied by the springs 117 to the positioning rack 115 allows it to cooperate with the assembly frame 114 to constrain the position of the positioning rack 115, so that the positioning rack 115 can cooperate with the locking pin 113 to achieve the locking effect.

[0030] It should be noted that, in use, the conveying mechanism 2 operates, conveying the wet wipe body 12 on its surface to the light box 5. During this process, the wet wipe body 12 passes through the posture adjustment device 9. When the wet wipe body 12 passes in a horizontal state, the industrial camera 2 93 detects the posture of the wet wipe body 12. The posture adjustment device 9 does not operate, and the wet wipe body 12 directly passes through the posture adjustment device 9 and enters the light box 5. The light box 5 illuminates the wet wipe body 12 with its own light. At the same time, the industrial camera 1 7 located above the light box 5 detects the passing wet wipe body 12. When the detected wet wipe body 12 is qualified, the wet wipe body 12 directly passes through the light box 5. When the detection result is unqualified, the industrial camera 1 7, in conjunction with the controller, controls the top material cylinder 8 to operate. The top material cylinder 8 operates to push the unqualified wet wipe body 12 into the unloading structure on the side of the conveying mechanism 2, thereby removing the unqualified wet wipe body 12. When the wet wipe body 12 passes through the attitude adjustment device 9 in an inclined or longitudinal posture, the industrial camera 2 93 detects the inclination of the wet wipe body 12. The industrial camera 2 93, in conjunction with the controller, controls the motor 94 and the conveying mechanism 2. The motor 94 is powered on, and the conveying mechanism 2 is stopped. The motor 94, in conjunction with the sleeve 95, drives the optical axis 96. The optical axis 96 moves the connecting frame 98, and the connecting frame 98 drives the push rods 99. Guided by the gantry mounting frame 91, the horizontal plate 92, and the positioning sleeve 910, the push rods 99 on both sides move along the designated direction and approach the wet wipe body 12. When the push rods 99 contact the wet wipe body 12, the push rods 99 push the wet wipe body 12. The push rod 99 rotates, and the wet wipe body 12 is adjusted to a horizontal position by the push rod 99. At this time, the wet wipe body 12 is located between the two push rods 99. The two push rods 99 continue to move out of the position of the wet wipe body 12. When the two push rods 99 move to the end of the corresponding movement stroke, the controller controls the conveying mechanism 2 to run again, thereby sending the adjusted wet wipe body 12 into the light box 5. When it is necessary to adjust the posture of the subsequent wet wipe body 12, the motor 94 reverses, so that the two push rods 99 move from the end of the movement stroke back to the original position. The push rods 99 reciprocate under the drive of the motor 94, so that the posture of the subsequent wet wipe body 12 can be adjusted. During the movement of push rod 99, push rod 99, in conjunction with connecting frame 103, drives telescopic airbag 102. Telescopic airbag 102 compresses or opens according to the direction of movement of push rod 99. When telescopic airbag 102 opens, it draws in outside air through air inlet. Outside air enters telescopic airbag 102 through outer shell 1042 and filter element 1041. Filter element 1041 filters the air entering telescopic airbag 102. The filtered air enters telescopic airbag 102 through air inlet. When telescopic airbag 102 compresses, it squeezes the air inside itself. The internal air flows into exhaust body 1071 through the cooperation of exhaust end and guide tube 105. Exhaust body 1071 discharges air through the cooperation of fixing hole 1072, air chamber 1073 and air outlet 1074. After the air is discharged through air outlet 1074, it can blow away the dust attached to the lower surface of transparent cover 106. Additionally, when the position of the supplementary light 1111 at different heights needs to be adjusted according to the size of the wet wipe body 12, the horizontal column 119 is pushed. The horizontal column 119 pushes the assembly frame 114. The assembly frame 114, in conjunction with the telescopic rod 116, drives the positioning rack 115. The positioning rack 115, through its inclined surface, contacts the locking pin 113 to compress the spring 117. The horizontal column 119 is stopped being pushed, and the assembly frame 114 and the positioning rack 115 stop moving. At the same time, the locking pin 113 stops pressing the positioning rack 115, and the spring 117, freed from the pressure applied by the positioning rack 115, rebounds and pushes the positioning rack 115 back to its original position. 5. The reset buckle is engaged with the surface of the locking pin 113, thereby locking the positions of the assembly frame 114, the crossbar 119, and the fill light 1111. When it is necessary to move the crossbar 119 away from the back plate 111, push the pressing block 118. The pressing block 118 presses the positioning rack 115, which compresses the spring 117 and disengages from the locking pin 113, allowing the crossbar 119 to move. At the same time, the operator can place the wiring harnesses of the fill light 1111, the industrial camera 93, and the motor 94 in the constraint cavity formed by the back plate 111, the crossbar 119, and the rubber pad 1110 to restrain the wiring harnesses. Because the conveying mechanism 2 is equipped with a posture adjustment device 9, the posture adjustment device 9 can correct the wet wipe body 12 during the conveying process before the conveying mechanism 2 sends it into the detection area. This ensures that when the wet wipe enters the detection area, the entire packaging area is completely within the ROI range of visual inspection. This eliminates the blind spot in the detection from the source of detection and solves the problem that when the wet wipe passes through the detection area, some packaging corners are outside the ROI detection range, and packaging defects outside the area cannot be effectively identified, ultimately leading to missed detection and inaccurate overall detection results.

[0031] Among them, the controller integrated with the conveying mechanism 2 and the chassis 3, the LCD touch screen 4, the light box 5, the industrial camera 1 7, the top material cylinder 8, the industrial camera 2 93 and the motor 94 are all existing technologies, and their working and control principles will not be elaborated here. For the connection parts between the parts, the connection methods such as welding, bolt fixing and interference fit can be selected according to the requirements of the connection position of the parts. In addition, for parts in different positions, the materials suitable for their working environment can be selected according to the working conditions and requirements.

[0032] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A wet wipe detection device, comprising a frame (1), characterized in that: A conveying mechanism (2) is fixedly connected to the upper surface of the frame (1). A housing (3) is fixedly connected to one side of the conveying mechanism (2). An LCD touch screen (4) is installed inside the housing (3). A light box (5) is fixedly connected to the upper surface of the conveying mechanism (2). A bracket (6) is fixedly connected to the surface of the light box (5). An industrial camera (7) is fixedly connected to the bracket (6). A top-loading cylinder (8) is fixedly connected to the inner wall of the bracket (6). A posture adjustment device (9) is provided on the upper surface of the conveying mechanism (2). The posture adjustment device (9) includes a gantry mounting bracket (91) fixed to the upper surface of the conveying mechanism (2). A proximity switch (13) is fixedly connected to the inner wall of the frame (91). A horizontal plate (92) is fixedly connected to the inner wall of the gantry mounting frame (91). An industrial camera (93) is fixedly connected to the upper surface of the horizontal plate (92). A motor (94) is fixedly connected to the upper surface of the gantry mounting frame (91). A sleeve (95) is fixedly connected to the output end of the motor (94). An optical axis (96) is fixedly connected to the outer circumferential surface of the sleeve (95). A connecting frame (98) is slidably connected to the surface of the optical axis (96). A push rod (99) is slidably connected to the inner wall of the gantry mounting frame (91). The upper end of the connecting frame (98) is rotatably connected to the push rod (99).

2. The wet wipe detection device according to claim 1, characterized in that: A limiting ring (97) is fixedly connected to one end of the optical axis (96) away from the sleeve (95). A positioning sleeve (910) is fixedly connected to the surface of the push rod (99). The upper end face of the gantry mounting bracket (91) is slidably connected to the positioning sleeve (910). A bracket (911) is fixedly connected to the upper surface of the gantry mounting bracket (91). A baffle (912) is fixedly connected to the side surface of the gantry mounting bracket (91). The motor (94) is fixedly connected to the inner wall of the bracket (911).

3. The wet wipe detection device according to claim 2, characterized in that: The surface of the horizontal plate (92) is provided with a circular hole. The camera of the second industrial camera (93) passes through the circular hole to penetrate the lower surface of the horizontal plate (92). The surface of the horizontal plate (92) is provided with a guide hole. The push rod (99) slides through the guide hole. The upper surface of the horizontal plate (92) is provided with a guide boss. The lower end face of the positioning sleeve (910) is provided with a groove. The positioning sleeve (910) is slidably connected to the guide boss through the groove.

4. The wet wipe detection device according to claim 3, characterized in that: There are two optical axes (96), and the two optical axes (96) are arranged in parallel with the output axis of the motor (94) as the axis of symmetry. The number of the connecting frame (98) and the number of the push rods (99) are equal to the number of optical axes (96). The diameter of the pushing end of each push rod (99) is smaller than the diameter of its guide end.

5. The wet wipe detection device according to claim 1, characterized in that: A dust removal device (10) is provided on the horizontal plate (92). The dust removal device (10) includes a fixed frame (101) fixed on the side of the horizontal plate (92). One end of a telescopic airbag (102) is fixedly connected to the inner side of the fixed frame (101). A connecting frame (103) is fixedly connected between the other end of the telescopic airbag (102) and the push rod (99). A filter (104) is provided at the air inlet end of the telescopic airbag (102). A transparent cover (106) is fixedly connected to the lower surface of the horizontal plate (92). The transparent cover (106) is located below the camera of the industrial camera (93). Air blowers (107) are provided on both sides of the transparent cover (106). A guide tube (105) is fixedly connected between the air outlet end of the telescopic airbag (102) and the air inlet end of the air blower (107). A limit frame (108) is fixedly connected between the horizontal plate (92) and the guide tube (105).

6. The wet wipe detection device according to claim 5, characterized in that: The filter (104) includes a filter element (1041) fixed to the air inlet end of the telescopic airbag (102). A housing (1042) is fixedly connected to the surface of the filter element (1041). The housing (1042) has multiple air inlets, which are evenly distributed in a ring array around the central axis of the housing (1042).

7. The wet wipe detection device according to claim 5, characterized in that: The air blower (107) includes a blower body (1071) fixed to the side surface of the transparent cover (106). The upper surface of the blower body (1071) is provided with a fixing hole (1072) adapted to the guide tube (105) connector. The interior of the blower body (1071) is provided with an air chamber (1073) communicating with the fixing hole (1072). The lower end of the blower body (1071) facing the transparent cover (106) is provided with a plurality of air outlets (1074) communicating with the air chambers (1073). The end face of the air outlet (1074) is parallel to the lower surface of the transparent cover (106).

8. The wet wipe detection device according to claim 5, characterized in that: An assisting device (11) is provided between the gantry mounting bracket (91) and the horizontal plate (92). The assisting device (11) includes a back plate (111) fixed between the gantry mounting bracket (91) and the horizontal plate (92). A square hole (112) is provided on the surface of the back plate (111). A locking pin (113) is fixedly connected to the inner wall of the square hole (112). An assembly frame (114) is slidably connected inside the square hole (112). A positioning rack (113) adapted to the locking pin (113) is slidably connected to the inner wall of the assembly frame (114). 5) A telescopic rod (116) and a spring (117) are fixedly connected between the positioning rack (115) and the assembly frame (114). A pressing block (118) is fixedly connected to the side of the positioning rack (115) away from the assembly frame (114). A horizontal column (119) is fixedly connected to one end of the assembly frame (114). A supplementary light (1111) is fixedly connected to the end of the assembly frame (114) away from the horizontal column (119). A rubber pad (1110) is fixedly connected between the horizontal column (119) and the assembly frame (114).

9. A wet wipe detection device according to claim 8, characterized in that: The back plate (111) has a slot for matching guide tube (105) on its surface, and a U-shaped groove for adapting telescopic airbag (102) on its surface. The locking pin (113) is inserted into the tooth groove of the positioning rack (115). There are multiple telescopic rods (116), which are horizontally and equidistantly distributed with reference to the positioning rack (115). The number of springs (117) is equal to that of the telescopic rods (116), and the springs (117) are sleeved on the telescopic rods (116).

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