An automated color difference detection device for packaging bag production

Abstract

The present invention discloses an automated color difference detection device for packaging bag production, which relates to the technical field of color difference detection of packaging bags, and includes a first conveying component, a second conveying component and a detection component. The first conveying component includes a first outer frame, and a first conveyor belt is fixedly connected to the bottom of the first outer frame; the second conveying component includes a second outer frame, and a second conveyor belt is fixedly connected to the bottom of the second outer frame, and the second conveyor belt is matched with the first conveyor belt. In the present invention, after the motor drives the belt to rotate a full circle, the first colorimeter bypasses the packaging bag to complete a full circle of covering color difference detection. After the packaging bag surface is fed from the first conveyor belt position, the packaging bag surface can be fully color-difference detected through an automated process, which solves the problem of detection blind spots in the flat state of the packaging bag, and effectively improves the accuracy of the color difference detection results of the packaging bag.

Description

Technical Field

[0001] The invention relates to the technical field of color difference detection of packaging bags, and in particular to an automatic color difference detection device for packaging bag production. Background Art

[0002] A packaging bag is a packaging container for various items and is widely used in daily life and industrial production. During the production process of packaging bags, various patterns are usually printed on the surface of the packaging bags. Color difference detection on the surface of packaging bags is an important quality control link in the production process of packaging bags.

[0003] In the prior art, such as Chinese patent publication number CN118089948A, a color difference detection device for packaging bag production is disclosed, which includes a workbench and a frame, a feeding mechanism is rotatably arranged on the workbench, the feeding mechanism has a T-shaped slot, and a detection platform is arranged at the T-shaped slot, a slide is arranged on the inner side of the frame, and a fixed gear is arranged in the frame, a threaded rod is arranged on one side of the fixed gear, a threaded sleeve is arranged in the workbench, and one end of the threaded sleeve is connected to a top plate, a bracket is arranged on the inner side of the frame, and a pressure plate is arranged on the inner side of the bracket. During the detection, the threaded sleeve will drive the top plate at one end to slide upward, at this time, the two ends of the plastic packaging bag to be detected on the detection platform will contact the pressure plate, and at the same time, the pressure plate will slide upward under the influence of the detection platform during the downward sliding of the infrared colorimeter body, thereby realizing the cleaning of foreign matter on the surface of the plastic packaging bag, and effectively ensuring the cleanliness of the surface of the plastic packaging bag.

[0004] In the prior art, when performing color difference detection on the surface of a packaging bag, in order to avoid the influence of wrinkles on the surface of the packaging bag on the detection results, the packaging bag is usually kept flat for color difference detection. When the packaging bag is in a flat state, only the upper side of the packaging bag can be detected for color difference, and there will be a blind spot for detection at the folded position of the packaging bag, which affects the accuracy of the color difference detection results of the packaging bag.

[0005] Therefore, an automatic color difference detection device for packaging bag production is proposed to solve the problems raised in the above background technology. Summary of the invention

[0006] The purpose of the present invention is to provide an automated color difference detection device for packaging bag production, so as to solve the problem proposed in the above background technology that when the packaging bag is in a flat state, color difference detection can only be performed on the upper single side of the packaging bag, and there will be a detection blind spot at the folding position of the packaging bag, which affects the accuracy of the color difference detection results of the packaging bag.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automated color difference detection device for packaging bag production, comprising a first conveying component, a second conveying component and a detection component, the first conveying component comprising a first outer frame, a first conveyor belt being fixedly connected to the inner bottom of the first outer frame; the second conveying component comprising a second outer frame, a second conveyor belt being fixedly connected to the inner bottom of the second outer frame, and the second conveyor belt is matched with the first conveyor belt; the detection component is fixedly connected to the inner top of the first outer frame, the detection component comprises a detection frame, a motor is fixedly connected to the outer surface of the detection frame, the output end of the motor passes through the detection frame and extends to the other side, a rotating shaft is fixedly connected to the output end of the motor, a driving roller is fixedly connected to the outer surface of the rotating shaft, a belt is sleeved on the outer surface of the driving roller, a support is fixedly connected to the outer surface of the belt, a plurality of second springs are fixedly connected to the inner top of the support at equal intervals, a first colorimeter is fixedly connected between the end surfaces of the plurality of second springs, a partition frame is fixedly connected to the outer surface of the detection frame away from the motor, and a second colorimeter is fixedly connected to the outer surface of the partition frame.

[0008] Preferably, a first hydraulic rod is fixedly connected to the top of the first outer frame, an output end of the first hydraulic rod passes through the first outer frame and extends to the lower side, and a first camera is fixedly connected to the output end of the first hydraulic rod, and the first camera is located above the first conveyor belt.

[0009] Preferably, a first electric push rod is fixedly connected to the top of the first outer frame, a displacement seat is fixedly connected to the lower end surface of the first electric push rod, a first electric-controlled suction cup is fixedly connected to the bottom of the displacement seat, a fixed seat is fixedly connected to the bottom of the first outer frame, a second electric-controlled suction cup is fixedly connected to the top of the fixed seat, the first electric-controlled suction cup is located above the second electric-controlled suction cup, and the second electric-controlled suction cup is located between the first conveyor belt and the second conveyor belt.

[0010] Preferably, a side frame is fixedly connected to the top of the first outer frame, a second electric push rod is fixedly connected to the outer surface of the side frame, a second camera is fixedly connected to the end surface of the second electric push rod, and the second camera is matched with the first camera.

[0011] Preferably, a box body is fixedly connected to the bottom of the first outer frame, and the box body is located between the fixed seat and the second conveyor belt. Rollers are symmetrically rotatably connected to the inner surface of the box body, and a photoelectric sensor is fixedly connected to the bottom of the box body. The photoelectric sensor is located below the two rollers and between the two rollers.

[0012] Preferably, a second hydraulic rod is fixedly connected to the top of the second outer frame, the output end of the second hydraulic rod passes through the second outer frame and extends to the lower side, the output end of the second hydraulic rod is fixedly connected to the base frame, the outer surface of the base frame is fixedly connected to a third hydraulic rod, the output end of the third hydraulic rod passes through the base frame and extends to the other side, the output end of the third hydraulic rod is fixedly connected to a push plate, the outer surface of the push plate close to the base frame is symmetrically fixedly connected to a guide rod, and the guide rod is slidably connected to the base frame.

[0013] Preferably, a third electric push rod is fixedly connected to the outer surface of the push plate, a mounting plate is fixedly connected to the end face of the third electric push rod, a telescopic rod is symmetrically fixedly connected between the mounting plate and the push plate, the telescopic rod and the third electric push rod are matched, a fixing frame is fixedly connected to the outer surface of the mounting plate, and a shell is fixedly connected to the inner surface of the fixing frame.

[0014] Preferably, slots are provided on the outer surfaces of both sides of the shell, and plug plates are plugged into and connected to the inner surfaces of the two slots, a plurality of first springs are fixedly connected between the two plug plates, a support block is fixedly connected to the outer surface of the plug plate, and the support block is located at the outer side of the shell, an oblique groove is provided on the outer surface of the plug plate on one side close to the mounting plate, a fourth electric push rod is symmetrically fixedly connected to the outer surface of the mounting plate on one side close to the plug plate, an extrusion block is fixedly connected to the end face of the fourth electric push rod, and the extrusion block cooperates with the position of the oblique groove, an air blowing pipe is fixedly connected to the outer surface of the mounting plate on one side close to the plug plate, a air blowing hood is fixedly connected to the end face of the air blowing pipe, an air blowing pump is fixedly connected to the outer surface of the other side of the mounting plate, and the air pump is connected to the air blowing pipe.

[0015] Preferably, the outer surface of the detection frame close to the driving roller is rotatably connected to a support shaft, the outer surface of the support shaft is fixedly connected to a support roller, the support roller is located on the inner side of the belt, and the support roller and the driving roller are matched.

[0016] Preferably, the outer surface of the detection frame is fixedly connected to a guide rail, the guide rail is located on the outside of the belt, the partition frame is located on the inside of the belt, the outer surface of the support close to the detection frame is rotatably connected to a support wheel, and the outer surface of the support wheel is slidably connected to the inner surface of the guide rail.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In the present invention, the packaging bag can be stretched open from the inside of the packaging bag by utilizing the displacement of the support blocks on both sides. The stretched packaging bag is in a three-dimensional state, and the folded displacement of its edges is stretched open by the support blocks in an arc state, so that the packaging bag as a whole has no folding position, which is convenient for overall coverage color difference detection of the surface of the packaging bag. After the motor drives the belt to rotate a full circle, the first colorimeter bypasses the packaging bag to complete a full circle of coverage color difference detection. After the packaging bag surface is fed in from the first conveyor belt position, a comprehensive color difference detection of the packaging bag surface can be achieved through an automated process, which solves the problem of detection blind spots in the flat state of the packaging bag, and effectively improves the accuracy of the color difference detection results of the packaging bag.

[0019] 2. In the present invention, the top surface of the packaging bag can be photographed by using the first camera. When the packaging bag is stretched open by the support block and moved up to the belt position for color difference detection, starting the second electric push rod to extend can drive the second camera to move to the position below the stretched packaging bag. At this time, the bottom surface of the packaging bag can be photographed by using the second camera. In conjunction with the use of the first camera, the top surface of the packaging bag can be photographed. The images obtained by taking the photos are entered into the visual recognition system to detect obvious defects and missing printing problems on the surface of the packaging bag, thereby improving the functionality of the device.

[0020] 3. In the present invention, when the packaging bag is conveyed to the top of the box body, the packaging bag blocks the photoelectric sensor. When the photoelectric sensor detects the blockage, it means that the packaging bag is in place. At this time, the photoelectric sensor can transmit a signal to control the first conveyor belt and the second conveyor belt to stop running, and at the same time control the first conveying component, the second conveying component and the detection component to cooperate to perform the detection process on the packaging bag. The use of the photoelectric sensor realizes the purpose of automatically judging whether the packaging bag is in place, thereby improving the degree of automation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A three-dimensional diagram of an automatic color difference detection device for packaging bag production according to the present invention;

[0022] Figure 2 A bottom view of an automatic color difference detection device for packaging bag production according to the present invention;

[0023] Figure 3 A cross-sectional view of an automatic color difference detection device for packaging bag production according to the present invention;

[0024] Figure 4 This is a schematic structural diagram of a first conveying component of an automated color difference detection device for packaging bag production according to the present invention;

[0025] Figure 5It is a structural schematic diagram of another viewing angle of the first conveying component of an automated color difference detection device for packaging bag production according to the present invention;

[0026] Figure 6 This is a schematic diagram of the box structure of an automatic color difference detection device for packaging bag production according to the present invention;

[0027] Figure 7 This is a schematic structural diagram of a second conveying component of an automated color difference detection device for packaging bag production according to the present invention;

[0028] Figure 8 This is a schematic diagram of the chassis structure of an automated color difference detection device for packaging bag production according to the present invention;

[0029] Fig. 9 This is a cross-sectional view of the shell structure of an automated color difference detection device for packaging bag production according to the present invention;

[0030] Fig.10 This is a schematic diagram of the structure of a detection component of an automated color difference detection device for packaging bag production according to the present invention;

[0031] Fig.11 The present invention is a schematic diagram of the structure of a detection frame of an automatic color difference detection device for packaging bag production.

[0032] In the figure: 1, first conveying assembly; 101, first outer frame; 102, first conveyor belt; 103, first hydraulic rod; 104, first camera; 105, first electric push rod; 106, displacement seat; 107, first electric control suction cup; 108, fixed seat; 109, second electric control suction cup; 110, box body; 111, roller; 112, photoelectric sensor; 113, side frame; 114, second electric push rod; 115, second camera; 2, second conveying assembly; 201, second outer frame; 202, second conveyor belt; 203, second hydraulic rod; 204, bottom frame; 205, third hydraulic rod; 206, push plate; 207, guide rod; 208, third Electric push rod; 209, mounting plate; 210, telescopic rod; 211, fixing frame; 212, housing; 213, plug plate; 214, support block; 215, first spring; 216, inclined slot; 217, fourth electric push rod; 218, extrusion block; 219, air pump; 220, air pipe; 221, air hood; 3, detection component; 301, detection frame; 302, motor; 303, rotating shaft; 304, driving roller; 305, supporting shaft; 306, supporting roller; 307, belt; 308, guide rail; 309, support; 310, supporting wheel; 311, second spring; 312, first colorimeter; 313, partition frame; 314, second colorimeter. DETAILED DESCRIPTION

[0033] 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 implementation regulations described 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.

[0034] Example 1: Please refer to Figure 1-Figure 11As shown, the present invention provides a technical solution: an automated color difference detection device for packaging bag production, comprising a first conveying component 1, a second conveying component 2 and a detection component 3, the first conveying component 1 comprises a first outer frame 101, and a first conveyor belt 102 is fixedly connected to the bottom of the first outer frame 101; the second conveying component 2 comprises a second outer frame 201, and a second conveyor belt 202 is fixedly connected to the bottom of the second outer frame 201, and the second conveyor belt 202 is matched with the first conveyor belt 102; the detection component 3 is fixedly connected to the top of the first outer frame 101, the detection component 3 comprises a detection frame 301, and a motor 302 is fixedly connected to the outer surface of the detection frame 301, and the output end of the motor 302 passes through the detection frame 301 and extends to the other side, and the motor 302 output end passes through the detection frame 301 and extends to the other side, The output end 302 is fixedly connected to a rotating shaft 303, the outer surface of the rotating shaft 303 is fixedly connected to a driving roller 304, the outer surface of the driving roller 304 is sleeved with a belt 307, the outer surface of the belt 307 is fixedly connected to a support 309, a plurality of second springs 311 are fixedly connected to the top of the support 309 at equal intervals, a first colorimeter 312 is fixedly connected between the end surfaces of the plurality of second springs 311, a partition frame 313 is fixedly connected to the outer surface of the detection frame 301 away from the motor 302, a second colorimeter 314 is fixedly connected to the outer surface of the partition frame 313, a first electric push rod 105 is fixedly connected to the top of the first outer frame 101, a displacement seat 106 is fixedly connected to the lower end surface of the first electric push rod 105, and a first electric control suction cup 106 is fixedly connected to the bottom of the displacement seat 106. 07, a fixing seat 108 is fixedly connected to the bottom of the first outer frame 101, a second electric-controlled suction cup 109 is fixedly connected to the top of the fixing seat 108, the first electric-controlled suction cup 107 is located above the second electric-controlled suction cup 109, the second electric-controlled suction cup 109 is located between the first conveyor belt 102 and the second conveyor belt 202, a second hydraulic rod 203 is fixedly connected to the top of the second outer frame 201, the output end of the second hydraulic rod 203 passes through the second outer frame 201 and extends to the lower side, the output end of the second hydraulic rod 203 is fixedly connected to the bottom frame 204, the outer surface of the bottom frame 204 is fixedly connected to the third hydraulic rod 205, the output end of the third hydraulic rod 205 passes through the bottom frame 204 and extends to the other side, the output end of the third hydraulic rod 205 is fixedly connected to the push plate 20 6. A guide rod 207 is symmetrically fixedly connected to the outer surface of the push plate 206 near the bottom frame 204. The guide rod 207 is slidably connected to the bottom frame 204. A third electric push rod 208 is fixedly connected to the outer surface of the push plate 206. A mounting plate 209 is fixedly connected to the end surface of the third electric push rod 208. A telescopic rod 210 is symmetrically fixedly connected between the mounting plate 209 and the push plate 206. The telescopic rod 210 and the third electric push rod 208 are matched. A fixing frame 211 is fixedly connected to the outer surface of the mounting plate 209. A shell 212 is fixedly connected to the inner surface of the fixing frame 211. Slots are provided on the outer surfaces of both sides of the shell 212. Insertion plates 213 are inserted and connected to the inner surfaces of the two slots. A plurality of first springs 215 are fixedly connected between the two insertion plates 213.The outer surface of the plug plate 213 is fixedly connected with a support block 214, and the support block 214 is located outside the shell 212. An oblique groove 216 is provided on the outer surface of the plug plate 213 near the mounting plate 209. The outer surface of the mounting plate 209 near the plug plate 213 is symmetrically fixedly connected with a fourth electric push rod 217. The end surface of the fourth electric push rod 217 is fixedly connected with an extrusion block 218. The extrusion block 218 matches the position of the oblique groove 216. The outer surface of the mounting plate 209 near the plug plate 213 is fixedly connected with a blowing pipe 220. The end surface of the blowing pipe 220 is fixedly connected with a blowing cover 221. The outer surface of the other side of the mounting plate 209 is fixedly connected with an air pump 219. The blowing cover 221 is fixedly connected to the outer surface of the other side of the mounting plate 209. The pump 219 is connected to the air blowing pipe 220. The outer surface of the detection frame 301 near the driving roller 304 is rotatably connected to the support shaft 305. The outer surface of the support shaft 305 is fixedly connected to the support roller 306. The support roller 306 is located on the inner side of the belt 307. The support roller 306 and the driving roller 304 are matched. The outer surface of the detection frame 301 is fixedly connected to the guide rail 308. The guide rail 308 is located on the outer side of the belt 307. The partition frame 313 is located on the inner side of the belt 307. The outer surface of the support 309 near the detection frame 301 is rotatably connected to the support wheel 310. The outer surface of the support wheel 310 is slidably connected to the inner surface of the guide rail 308.

[0035] The use steps of the present invention are as follows: after the packaging bag is produced, the packaging bag is placed above the first conveyor belt 102 and conveyed toward the second conveyor belt 202. When the packaging bag is delivered to the right place and the inspection process begins, the second electrically-controlled suction cup 109 is started to adsorb the bottom of the packaging bag, and the first electric push rod 105 drives the first electrically-controlled suction cup 107 to move down to a position that fits the top surface of the packaging bag. At this time, the first electrically-controlled suction cup 107 starts to adsorb the surface of the packaging bag, and the first electric push rod 105 is started to move up. At this time, the first electrically-controlled suction cup 107 can drive the packaging bag to move up. Since the bottom of the packaging bag is adsorbed by the second electrically-controlled suction cup 109, at this time, as the first electrically-controlled suction cup 10 7 is moved upward, the opening position of the packaging bag can be torn open, the third electric push rod 208 is started to extend, the mounting plate 209 can be driven to move toward the packaging bag, the two fourth electric push rods 217 are started to extend, and the extrusion block 218 can push the plug plates 213 on both sides outward synchronously after contacting the inclined groove 216. When the plug plates 213 are displaced, the first spring 215 is stretched, and the plug plates 213 on both sides can drive the two support blocks 214 to move outward synchronously. By using the displacement of the support blocks 214 on both sides, the packaging bag can be opened from the inside of the packaging bag. The opened packaging bag is in a three-dimensional state, and its edge folding displacement is opened by the arc-shaped support blocks 214, so that The packaging bag has no folding position as a whole, which is convenient for color difference detection of the entire surface of the packaging bag. After the supporting block 214 props up the packaging bag, the third electric push rod 208 is started to shrink and reset, and then the third hydraulic rod 205 is started to shrink, driving the packaging bag to move to the position below the first colorimeter 312. Then, the second hydraulic rod 203 is controlled to shrink and drive the bottom frame 204 to move upward. The packaging bag is driven to move upward to the bottom of the first colorimeter 312 by the upward movement of the bottom frame 204. The color difference detection starts at the position corresponding to the rotation range of the first colorimeter 312, and the air pump 219 is started. The air flow blown out by the air hood 221 can act from the inside of the packaging bag to the internal sealing position of the packaging bag. At this time, the bottom seal position of the packaging bag is forced to bulge outward, so that the bottom seal of the packaging bag can fit the surface of the second colorimeter 314. At this time, the second colorimeter 314 can be used to complete the color difference detection of the bottom seal position of the packaging bag. After the motor 302 drives the belt 307 to rotate a full circle, the first colorimeter 312 bypasses the packaging bag to complete a full circle of covering color difference detection. After the packaging bag is fed in from the first conveyor belt 102, the surface of the packaging bag can be fully color-difference detected through an automated process, which solves the problem of blind spots in the flat state of the packaging bag, and effectively improves the accuracy of the color difference detection results of the packaging bag.

[0036] Embodiment 2: Figure 3 , Figure 4 and Figure 5As shown, a first hydraulic rod 103 is fixedly connected to the top of the first outer frame 101, an output end of the first hydraulic rod 103 passes through the first outer frame 101 and extends to the lower side, a first camera 104 is fixedly connected to the output end of the first hydraulic rod 103, the first camera 104 is located above the first conveyor belt 102, a side frame 113 is fixedly connected to the top of the first outer frame 101, a second electric push rod 114 is fixedly connected to the outer surface of the side frame 113, a second camera 115 is fixedly connected to the end face of the second electric push rod 114, and the second camera 115 is matched with the first camera 104.

[0037] The use steps of the present invention are as follows: when the packaging bag passes through the first conveyor belt 102 for transportation, the top surface of the packaging bag can be photographed by using the first camera 104, and the image obtained by the photograph is entered into the visual recognition system to detect obvious defects and missing printing problems on the surface of the packaging bag, thereby improving the functionality of the device; when the packaging bag is stretched open by the support block 214 and moves up to the belt 307 for color difference detection, starting the second electric push rod 114 to extend can drive the second camera 115 to move to the position below the stretched packaging bag. At this time, the bottom surface of the packaging bag can be photographed by using the second camera 115, and the use of the first camera 104 is used to achieve the purpose of comprehensively detecting surface defects of the packaging bag, thereby further improving the functionality of the device.

[0038] Embodiment 3: Figure 3 and Figure 6 As shown, a box body 110 is fixedly connected to the bottom of the first outer frame 101, and the box body 110 is located between the fixed seat 108 and the second conveyor belt 202. The inner surface of the box body 110 is symmetrically rotatably connected to rollers 111. A photoelectric sensor 112 is fixedly connected to the bottom of the box body 110, and the photoelectric sensor 112 is located below the two rollers 111, and the photoelectric sensor 112 is located between the two rollers 111.

[0039] The use steps of the present invention are as follows: when the packaging bag is conveyed to the top of the box body 110, the packaging bag blocks the photoelectric sensor 112. When the photoelectric sensor 112 detects the blockage, it means that the packaging bag is in place. At this time, the photoelectric sensor 112 can transmit a signal to control the first conveyor belt 102 and the second conveyor belt 202 to stop running, and at the same time control the first conveying component 1, the second conveying component 2 and the detection component 3 to cooperate in the operation to perform the detection process on the packaging bag. The use of the photoelectric sensor 112 is used to achieve the purpose of automatically judging that the packaging bag is in place, thereby improving the degree of automation of the device.

[0040] The effect and working principle of the whole mechanism are as follows: after the packaging bag is produced, when the color difference of the packaging bag surface is detected, the packaging bag is conveyed by the cooperation of the first conveyor belt 102 and the second conveyor belt 202. The packaging bag is placed above the first conveyor belt 102 and conveyed toward the second conveyor belt 202. When the packaging bag is placed, the opening side of the packaging bag is conveyed toward the second conveyor belt 202. When the packaging bag passes through the conveying position of the first conveyor belt 102 and moves to the intersection position with the second conveyor belt 202, the box body 110 can be set to position the conveying position of the packaging bag.

[0041] When the packaging bag is transported to the top of the box body 110, the bottom of the packaging bag contacts the roller 111. The setting of the roller 111 can reduce the friction force and avoid damage to the packaging bag during transportation. The packaging bag will cover the top of the box body 110. At this time, the packaging bag blocks the photoelectric sensor 112. After the photoelectric sensor 112 detects the blockage, it means that the packaging bag is in place. At this time, the photoelectric sensor 112 can transmit a signal to control the first conveyor belt 102 and the second conveyor belt 202 to stop running, and at the same time control the first conveying component 1, the second conveying component 2 and the detection component 3 to cooperate in the operation to perform the detection process on the packaging bag. The use of the photoelectric sensor 112 realizes the purpose of automatically judging that the packaging bag is in place, thereby improving the degree of automation of the device.

[0042] When the packaging bag is delivered to the position and the inspection process begins, the second electrically-controlled suction cup 109 is started to adsorb the bottom of the packaging bag, and the first electric push rod 105 is started to extend, and the first electric push rod 105 drives the first electrically-controlled suction cup 107 to move down to a position that fits the top surface of the packaging bag. At this time, the first electrically-controlled suction cup 107 starts to adsorb the surface of the packaging bag, and the first electric push rod 105 is started to move up. At this time, the first electrically-controlled suction cup 107 can drive the packaging bag to move up. Since the bottom of the packaging bag is adsorbed by the second electrically-controlled suction cup 109, the opening position of the packaging bag can be torn open as the first electrically-controlled suction cup 107 moves up, so as to cooperate with the operation of the second conveying component 2 and the inspection component 3 to carry out the subsequent inspection process;

[0043] After the opening of the packaging bag is torn open, the packaging bag is in an open state toward the shell body 212. Starting the third electric push rod 208 to extend can drive the mounting plate 209 to move toward the packaging bag. The setting of the telescopic rod 210 supports the displacement of the mounting plate 209, thereby improving the stability of the displacement state of the mounting plate 209. When the mounting plate 209 is displaced, the shell body 212 can be driven to move with it through the connection of the fixing frame 211. At this time, the shell body 212 can enter the interior of the packaging bag. The length of the shell body 212 is adapted to the length of the packaging bag, so the shell body 212 can be completely delivered to the interior of the packaging bag. When the electric push rod 208 is running and drives the shell 212 to extend into the packaging bag, the air pump 219 is started. After the air pump 219 is started, an air flow can be blown out from the position of the air hood 221 through the connection of the air blowing pipe 220. The air flow will enter the shell 212 and be blown into the packaging bag from the opening position on the other side of the shell 212. At this time, the air flow enters the packaging bag and can fully open the packaging bag. The setting of blowing air into the packaging bag by the air pump 219 running to open the packaging bag can avoid overlapping wrinkles on the edge positions of both sides of the packaging bag that affect the entry of the shell 212, thereby achieving the purpose of improving the operating stability of the device;

[0044] After the shell 212 completely enters the packaging bag, the blowing pump 219 stops running, the first electrically controlled suction cup 107 and the second electrically controlled suction cup 109 are closed, and the first electric push rod 105 moves up and resets. At this time, the two fourth electric push rods 217 are started to extend, and the fourth electric push rods 217 can drive the extrusion block 218 to move toward the plug plate 213. After the extrusion block 218 contacts the inclined groove 216, the plug plates 213 on both sides can be pushed outward synchronously. When the plug plates 213 are displaced, the first spring 215 will be stretched, and the plug plates 213 on both sides can drive the two support blocks 214 to move outward synchronously. By using the displacement of the support blocks 214 on both sides, the packaging bag can be opened from the inside of the packaging bag. The opened packaging bag is in a three-dimensional state, and its edge folding displacement is opened by the arc-shaped support block 214, so that the packaging bag as a whole has no folding position, which is convenient for the color difference detection of the overall coverage of the packaging bag surface;

[0045] After the supporting block 214 props up the packaging bag, the third electric push rod 208 is started to shrink and reset, and then the third hydraulic rod 205 is started to shrink. The shrinkage of the third hydraulic rod 205 can drive the push plate 206 to move toward the base frame 204. The setting of the guide rod 207 plays a supporting role for the displacement of the push plate 206, thereby improving the stability of the displacement of the push plate 206. The push plate 206 drives the mounting plate 209 to move through the connection with the third electric push rod 208, and can drive the shell 212 and the packaging bag to move toward the base frame 204. At this time, with the driving of the third hydraulic rod 205, the packaging bag can be driven to move to the position below the first colorimeter 312. Then, the second hydraulic rod 203 is controlled to shrink and drive the base frame 204 to move upward. The upward movement of the base frame 204 drives the packaging bag to move upward to the bottom of the first colorimeter 312, and the color difference detection is started at the position corresponding to the rotation range of the first colorimeter 312.

[0046] After the bottom frame 204 moves upward, the surface of the packaging bag is in contact with the first colorimeter 312 above, and the air pump 219 is started at the same time. The air flow blown out by the air hood 221 can act on the inner sealing position of the packaging bag from the inside of the packaging bag. At this time, the bottom sealing position of the packaging bag is forced to bulge outward, so that the bottom sealing position of the packaging bag can be in contact with the surface of the second colorimeter 314. At this time, the second colorimeter 314 can be used to complete the color difference detection of the bottom sealing position of the packaging bag. After completing the color difference detection of this position, the air pump 219 continues to operate, so that the entire packaging bag is always in a relatively high temperature. The packaging bag is in a fully expanded state. At this time, the running motor 302 starts to perform color difference detection on the surface of the packaging bag with full coverage. After the motor 302 is running, it can drive the driving roller 304 to follow the rotation through the connection of the rotating shaft 303. When the driving roller 304 rotates, it cooperates with the use of the supporting shaft 305 and the supporting roller 306 to drive the belt 307 to operate. The displacement path of the belt 307 covers the outside of the packaging bag, and the shape of the belt 307 is similar to the expanded shape of the packaging bag by the supporting block 214, which can ensure that the first colorimeter 312 keeps rotating along a path similar to the shape of the packaging bag. Color difference detection, the operation of the belt 307 can drive the support 309 to follow the rotation, and the support 309 will drive the support wheel 310 to move along the guide rail 308 when rotating. The support wheel 310 and the guide rail 308 cooperate to support the displacement of the support 309, thereby improving the stability of the displacement state of the support 309. When the support 309 drives the first colorimeter 312 to move, the rebound force of the second spring 311 is used to make the detection end of the first colorimeter 312 always keep in close contact with the surface of the packaging bag, thereby ensuring the accuracy of the detection result. 2 and the second colorimeter 314 are both in a rectangular shape, and a plurality of detection heads are installed on their surfaces in a linear array. The plurality of detection heads arranged in a linear array are operated simultaneously to perform color difference detection on the surface of the packaging bag in a rectangular range. When the first colorimeter 312 and the second colorimeter 314 are in operation, the internal light source is used to irradiate the surface of the packaging bag with light, and the light is reflected back to the first colorimeter 312 and the second colorimeter 314 to obtain the corresponding three stimulus values. By comparing the detected values ​​with the standard values, the color difference detection of the packaging bag is completed by using the first colorimeter 312 and the second colorimeter 314;

[0047] After the motor 302 drives the belt 307 to rotate one full circle, the first colorimeter 312 goes around the packaging bag and completes a full circle of coverage color difference detection. After the packaging bag surface is fed from the first conveyor belt 102, the packaging bag surface can be fully color-difference detected through an automated process, which solves the problem of detection blind spots when the packaging bag is laid flat, and effectively improves the accuracy of the color difference detection result of the packaging bag.

[0048] After completing the color difference detection of a single packaging bag, the first hydraulic rod 103 is controlled to extend to drive the bottom frame 204 to move down and reset, the air pump 219 is controlled to operate at a low power, and then the fourth electric push rod 217 is controlled to contract and reset. After the fourth electric push rod 217 is reset, it drives the extrusion block 218 to disengage from the extrusion of the plug plate 213. At this time, the rebound force of the first spring 215 can drive the plug plate 213 to reset, and the support block 214 moves toward the inside of the shell 212 to disengage from the support of the packaging bag. After the packaging bag loses support, the airflow blown out from the position of the air blow hood 221 can blow the packaging bag down. After being blown down, the packaging bag falls above the second conveyor belt 202, and the packaging bag is sent out by the operation of the second conveyor belt 202 to complete the color difference detection;

[0049] After the packaging bag that has completed the color difference detection is sent out, the first conveyor belt 102 continues to run to feed the packaging bag. When the packaging bag passes the position of the first conveyor belt 102 for transportation, the top surface of the packaging bag can be photographed by using the first camera 104. The image obtained by the photo is entered into the visual recognition system to detect obvious defects and missing printing problems on the surface of the packaging bag, thereby improving the functionality of the device. When the packaging bag is opened by the support block 214 and moved up to the belt 307 position for color difference detection, starting the second electric push rod 114 to extend can drive the second camera 115 to move to the position below the expanded packaging bag. At this time, the bottom surface of the packaging bag can be photographed by using the second camera 115. In combination with the use of the first camera 104, the purpose of comprehensively detecting surface defects of the packaging bag is achieved, thereby further improving the functionality of the device.

[0050] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automated color difference detection device for packaging bag production, comprising a first conveying component (1), a second conveying component (2) and a detection component (3), characterized in that: The first conveying assembly (1) comprises a first outer frame (101), a first conveying belt (102) is fixedly connected to the inner bottom of the first outer frame (101), a first electric-controlled suction cup (107) is fixedly connected to the inner top of the first outer frame (101), a second electric-controlled suction cup (109) is fixedly connected to the inner bottom of the first outer frame (101), a box body (110) is fixedly connected to the inner bottom of the first outer frame (101), and a photoelectric sensor (112) is fixedly connected to the inner bottom of the box body (110); The second conveying assembly (2) comprises a second outer frame (201), a second conveying belt (202) is fixedly connected to the inner bottom of the second outer frame (201), the second conveying belt (202) and the first conveying belt (102) are matched with each other, the first electric-controlled suction cup (107) is located above the second electric-controlled suction cup (109), the second electric-controlled suction cup (109) is located between the first conveying belt (102) and the second conveying belt (202), and the photoelectric sensor (112) is located between the first conveying belt (102) and the second conveying belt (202); The detection component (3) is fixedly connected to the top of the first outer frame (101), and the detection component (3) comprises a detection frame (301), the outer surface of the detection frame (301) is fixedly connected to a motor (302), the output end of the motor (302) passes through the detection frame (301) and extends to the other side, the output end of the motor (302) is fixedly connected to a rotating shaft (303), the outer surface of the rotating shaft (303) is fixedly connected to a driving roller (304), and the outer surface of the driving roller (304) A belt (307) is sleeved, the outer surface of the belt (307) is fixedly connected to a support (309), a plurality of second springs (311) are fixedly connected to the top of the support (309) at equal intervals, a first colorimeter (312) is fixedly connected between the end surfaces of the plurality of second springs (311), a partition frame (313) is fixedly connected to the outer surface of the detection frame (301) away from the motor (302), and a second colorimeter (314) is fixedly connected to the outer surface of the partition frame (313).

2. The automatic color difference detection device for packaging bag production according to claim 1 is characterized in that: A first hydraulic rod (103) is fixedly connected to the top of the first outer frame (101); an output end of the first hydraulic rod (103) passes through the first outer frame (101) and extends to the lower side; a first camera (104) is fixedly connected to the output end of the first hydraulic rod (103); and the first camera (104) is located above the first conveyor belt (102).

3. The automatic color difference detection device for packaging bag production according to claim 1 is characterized in that: A first electric push rod (105) is fixedly connected to the top of the first outer frame (101), a displacement seat (106) is fixedly connected to the lower end surface of the first electric push rod (105), a first electric-controlled suction cup (107) is fixedly connected to the bottom of the displacement seat (106), a fixed seat (108) is fixedly connected to the bottom of the first outer frame (101), and a second electric-controlled suction cup (109) is fixedly connected to the top of the fixed seat (108).

4. The automatic color difference detection device for packaging bag production according to claim 2 is characterized in that: A side frame (113) is fixedly connected to the top of the first outer frame (101), a second electric push rod (114) is fixedly connected to the outer surface of the side frame (113), a second camera (115) is fixedly connected to the end surface of the second electric push rod (114), and the second camera (115) is matched with the first camera (104).

5. The automatic color difference detection device for packaging bag production according to claim 3 is characterized in that: The box body (110) is located between the fixed seat (108) and the second conveyor belt (202); the inner surface of the box body (110) is symmetrically rotatably connected to rollers (111); and the photoelectric sensor (112) is located between the two rollers (111).

6. The automatic color difference detection device for packaging bag production according to claim 1 is characterized in that: A second hydraulic rod (203) is fixedly connected to the top of the second outer frame (201); an output end of the second hydraulic rod (203) passes through the second outer frame (201) and extends to the lower side; an output end of the second hydraulic rod (203) is fixedly connected to a base frame (204); a third hydraulic rod (205) is fixedly connected to the outer surface of the base frame (204); an output end of the third hydraulic rod (205) passes through the base frame (204) and extends to the other side; an output end of the third hydraulic rod (205) is fixedly connected to a push plate (206); a guide rod (207) is symmetrically fixedly connected to the outer surface of one side of the push plate (206) close to the base frame (204); and the guide rod (207) is slidably connected to the base frame (204).

7. The automatic color difference detection device for packaging bag production according to claim 6 is characterized in that: The outer surface of the push plate (206) is fixedly connected to a third electric push rod (208); the end surface of the third electric push rod (208) is fixedly connected to a mounting plate (209); a telescopic rod (210) is symmetrically fixedly connected between the mounting plate (209) and the push plate (206); the telescopic rod (210) and the third electric push rod (208) are matched; the outer surface of the mounting plate (209) is fixedly connected to a fixing frame (211); the inner surface of the fixing frame (211) is fixedly connected to a housing (212).

8. The automatic color difference detection device for packaging bag production according to claim 7 is characterized in that: Slots are provided on the outer surfaces of both sides of the shell (212), and plug boards (213) are plugged and connected to the inner surfaces of the two slots. A plurality of first springs (215) are fixedly connected between the two plug boards (213). A support block (214) is fixedly connected to the outer surface of the plug board (213), and the support block (214) is located outside the shell (212). An oblique groove (216) is provided on the outer surface of the plug board (213) on the side close to the mounting plate (209), and the outer surface of the mounting plate (209) on the side close to the plug board (213) is symmetrically fixed. A fourth electric push rod (217) is connected, and an extrusion block (218) is fixedly connected to the end surface of the fourth electric push rod (217), and the extrusion block (218) matches the position of the inclined groove (216); an air blowing pipe (220) is fixedly connected to the outer surface of one side of the mounting plate (209) close to the plug plate (213), and an air blowing cover (221) is fixedly connected to the end surface of the air blowing pipe (220); an air blowing pump (219) is fixedly connected to the outer surface of the other side of the mounting plate (209), and the air blowing pump (219) is in a connected state with the air blowing pipe (220).

9. The automatic color difference detection device for packaging bag production according to claim 1, characterized in that: A support shaft (305) is rotatably connected to the outer surface of the detection frame (301) on one side close to the driving roller (304), and a support roller (306) is fixedly connected to the outer surface of the support shaft (305). The support roller (306) is located on the inner side of the belt (307), and the support roller (306) and the driving roller (304) are arranged in a matching manner.

10. The automatic color difference detection device for packaging bag production according to claim 9, characterized in that: The outer surface of the detection frame (301) is fixedly connected to a guide rail (308), the guide rail (308) is located outside the belt (307), the partition frame (313) is located inside the belt (307), and the outer surface of the support (309) close to the detection frame (301) is rotatably connected to a support wheel (310), and the outer surface of the support wheel (310) is slidably connected to the inner surface of the guide rail (308).

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