Inkjet device for packaging production

Abstract

The invention relates to the technical field of package painting, in particular to a painting device for package production. Comprising a base; the painting equipment is fixedly connected to the base; the fixed disc is arranged on the base and located below the inkjet equipment, a plurality of straight grooves are formed in the circumferential direction of the fixed disc, the fixed disc is detachably and rotationally connected with a rotating disc, and inclined grooves with the number equal to that of the straight grooves are formed in the circumferential direction of the rotating disc; the straight grooves in the fixed disc and the adjacent inclined grooves in the rotating disc are jointly connected with a fixed frame in a sliding mode, and the base is provided with a conductive sliding ring. The visual detection device is fixedly connected to the base, and the visual detection device is used for observing the appearance condition of the packaging bag. The edge of the packaging bag is adsorbed and fixed, and the edge of the packaging bag is driven by the fixing frame to synchronously move outwards, so that the packaging bag is subjected to uniform outward pulling force, the packaging bag is gradually stretched to be flat, and the spraying accuracy degree is improved.

Description

Technical Field

[0001] The invention relates to the technical field of packaging inkjet printing, and in particular to an inkjet printing device for packaging production. Background Art

[0002] Bag printing refers to the process of color printing on various types of bags, that is, printing designs, logos, product information or advertising patterns on bags. This technology is widely used in retail, food, medicine and other industries that require identification and brand promotion. During the preparation process, the existing bags are very prone to uneven cooling and shrinkage during blow molding, resulting in wrinkles on the outside of the bags. When the existing bag printing devices are printing on the bags, most of them make the bags run to the printing position and directly print, and the wrinkles on the outside of the bags cannot be further processed, resulting in uneven printing of the printed patterns and texts due to the influence of wrinkles, reducing the visual appeal of the patterns and the accuracy of the text. Summary of the invention

[0003] In order to overcome the shortcomings mentioned in the above background technology, the present invention provides a printing device for packaging production.

[0004] The technical implementation scheme of the present invention is: a printing device for packaging production, comprising: Base; A spray painting device, fixedly connected to the base, for spraying patterns and information on the outside of the packaging bag; A fixed plate is arranged on the base and is located below the inkjet device. A plurality of straight grooves are arranged around the fixed plate. The fixed plate is detachably and rotatably connected to a rotating plate. The rotating plate is circumferentially provided with oblique grooves equal in number to the straight grooves. The straight grooves on the fixed plate and the adjacent oblique grooves on the rotating plate are slidably connected to a fixing frame. The base is provided with a conductive slip ring. The rotating end of the conductive slip ring is detachably and fixedly connected to the rotating plate. A visual inspection device, fixedly connected to the base, and used to observe the appearance of the packaging bag; A motion component, disposed on the base, for driving the fixed disk to move; The adsorption components are the same in number as the fixing frames and are installed on adjacent fixing frames. The adsorption components are used for adsorbing packaging bags.

[0005] More preferably, the adsorption component comprises: An adsorption cylinder, fixedly connected to the adjacent fixing frame; A sealing ring, fixedly connected to the bottom of the adjacent adsorption cylinder, used to improve the stability of the adjacent adsorption cylinder in adsorbing the packaging bag; The first piston shaft is sealingly and slidably connected to the interior of the adsorption cylinder, and a first elastic member is arranged between the first piston shaft and the adjacent adsorption cylinder.

[0006] More preferably, it also includes: The blocking rings are the same in number as the adsorption cylinders and are fixedly connected to the adjacent first piston shafts. The adsorption cylinders are provided with flow holes, which are sealed and matched with the blocking rings. The blocking rings are sealingly and slidably connected to the adjacent adsorption cylinders.

[0007] More preferably, the sealing ring is bent toward the inside of the adjacent adsorption cylinder to increase the contact area between the sealing ring and the packaging bag.

[0008] More preferably, it also includes: Auxiliary sealing components, the number of which is the same as that of the adsorption cylinders, the auxiliary sealing components are arranged on adjacent adsorption cylinders, and the auxiliary sealing components are used to enhance the fitting strength between the packaging bag and the sealing ring; The auxiliary sealing assembly includes: a water storage ring, fixedly connected to the outside of the adjacent adsorption cylinder, the water storage ring is sealingly and rotatably connected to a rotating ring, and the two cooperate to form a water storage cavity, the bottom of the rotating ring is provided with circumferentially distributed through holes, the circumferentially distributed through holes of the rotating ring are all provided with hard film, and the water storage ring is sealingly and slidably connected to a second piston shaft; A driving assembly is arranged on the adjacent water storage ring, and the driving assembly is used to drive the adjacent second piston shaft.

[0009] More preferably, the driving assembly comprises: A rack frame is fixedly connected to the adjacent blocking ring, the rack frame is slidably connected to the adjacent adsorption cylinder, the water storage ring is rotatably connected to a transmission gear through a connecting piece, the rack frame is meshed with the adjacent transmission gear, the second piston shaft is fixedly connected to a linear array of teeth, and the second piston shaft is meshed with the adjacent transmission gear through the linear array of teeth; The rotating assembly is arranged on the adjacent rack frame, and the rotating assembly is used to drive the adjacent rotating ring to rotate.

[0010] More preferably, the rotating assembly comprises: A clamping shaft is fixedly connected to the adjacent rack frame, the inner wall of the rotating ring is provided with a sliding groove, the sliding groove is a spiral groove, and the clamping shaft is slidably connected to the adjacent sliding groove; A separation component is arranged on the adjacent first piston shaft, and the separation component is used for separating the sealing ring and the packaging bag.

[0011] More preferably, the exterior of the clamping shaft is plated with wear-resistant material to extend its service life.

[0012] More preferably, the separation component comprises: The first clamping block is fixedly connected to the adjacent first piston shaft. The interior of the adsorption cylinder is slidably connected to the second clamping block via a connecting piece. The first clamping block is squeezed and matched with the adjacent second clamping block. A second elastic piece is arranged between the adsorption cylinder and the adjacent second clamping block via the connecting piece.

[0013] More preferably, the elastic force of the first elastic member is greater than the elastic force of the adjacent second elastic member.

[0014] Compared with the prior art, the present invention has the following advantages: 1. By fixing the edge of the packaging bag by absorption, and using the fixing frame to drive the edge of the packaging bag to move outward synchronously, the packaging bag is subjected to a uniform outward pulling force, gradually stretching the packaging bag flat, thereby improving the accuracy of inkjet printing.

[0015] 2. By continuously applying extraction force to the first piston shaft, when a gap appears between the sealing ring and the packaging bag, the extraction force drives the first piston shaft to slide upward again to further absorb the packaging bag, thereby preventing external gas from continuously entering the closed cavity, thereby causing the sealing ring to separate from the packaging bag, and then causing the packaging bag to fail to be stretched flat, reducing the accuracy of inkjet printing.

[0016] 3. By immersing water into the joint between the sealing ring and the packaging bag, the mutual attraction between the water molecules forms tension to strengthen the joint strength between the sealing ring and the packaging bag, reduce the probability of separation between the two, and at the same time change the water discharge position so that the water falls evenly to the joint between the sealing ring and the packaging bag.

[0017] 4. By delaying the fall of the first piston shaft and using the difference between the extraction force and the elastic force of the first elastic member, the first elastic member pushes the adjacent first piston shaft to quickly reset, causing the gas in the closed cavity to form pressure fluctuations, thereby better separating the sealing ring from the packaging bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a three-dimensional structural schematic diagram of the fixed disk and the rotating disk of the present invention; Figure 3 It is a schematic cross-sectional view of the three-dimensional structure of the fixed disk and the rotating disk of the present invention; Figure 4 It is a schematic cross-sectional view of the three-dimensional structure of the adsorption cylinder of the present invention; Figure 5 It is a schematic cross-sectional view of the three-dimensional structure of the water storage ring and the rotating ring of the present invention; Figure 6 It is a three-dimensional structural schematic diagram of the clamping shaft and the sliding groove of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the first card block and the second card block of the present invention.

[0019] In the figure: 1. base, 2. inkjet printing equipment, 3. fixed disk, 4. rotating disk, 5. fixed frame, 6. conductive slip ring, 7. visual detection device, 201. adsorption cylinder, 202. sealing ring, 203. first piston shaft, 204. first elastic member, 301. blocking ring, 302. flow hole, 401. water storage ring, 402. rotating ring, 403. hard sheet film, 404. second piston shaft, 405. rack frame, 406. transmission gear, 407. clamping shaft, 408. sliding groove, 501. first clamping block, 502. second clamping block, 503. second elastic member. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] When spraying on packaging bags, most existing packaging bag spraying devices run the packaging bags to the spraying position and directly spray them. The wrinkles on the outside of the packaging bags cannot be further processed, resulting in uneven spraying of the printed patterns and texts due to the influence of the wrinkles, thereby reducing the visual appeal of the patterns and the accuracy of the texts.

[0022] A printing device for packaging production, such as Figure 1-Figure 3 As shown, it includes: a base 1; a spray painting device 2, which is fixedly connected to the base 1 and is used to spray patterns and information on the outside of the packaging bag; a fixed disk 3, which is arranged on the base 1 and is located below the spray painting device 2, and a plurality of straight grooves are arranged around the fixed disk 3, and the fixed disk 3 is detachably and rotatably connected to a rotating disk 4, and the rotating disk 4 is circumferentially provided with oblique grooves equal to the number of straight grooves, and the straight grooves on the fixed disk 3 and the adjacent oblique grooves on the rotating disk 4 are slidably connected to a fixed frame 5, and the base 1 is provided with a conductive slip ring 6, and the rotating end of the conductive slip ring 6 is detachably and fixedly connected to the rotating disk 4; a visual inspection device 7, which is fixedly connected to the base 1, and the visual inspection device 7 is used to observe the appearance of the packaging bag; a motion component, which is arranged on the base 1 and is used to drive the fixed disk 3 to move; an adsorption component, which is the same in number as the fixed frame 5 and is installed on the adjacent fixed frame 5, and the adsorption component is used to adsorb the packaging bag.

[0023] In the above scheme, a conveying system for transporting packaging bags is provided on the base 1, such as a belt conveyor, which has a simple structure and convenient transportation. The plurality of straight grooves distributed circumferentially on the fixed disk 3 are distributed at equal intervals, and the number is at least four. Similarly, the inclined grooves on the rotating disk 4 are also distributed at equal intervals, and the number can be increased according to the requirements of the printing of the packaging bag. The number of inclined grooves on the rotating disk 4 is increased accordingly. The inclination angle of the inclined grooves on the rotating disk 4 is freely set according to the shape of the printed packaging bag, and the fixed frame 5 is a horizontal telescopic frame (not shown in the figure), which can adjust the distance between the adsorption component (such as a suction cup) thereon and the center of the fixed disk 3. For example, when the printed packaging bag is circular, since the distance from the center point of the circle to the edge is consistent, the inclination of the inclined grooves on the rotating disk 4 is consistent, so that the sliding distance of the fixed frame 5 is consistent, and the length of the fixed frame 5 is adjusted to be equal (that is, a plurality of adsorption components are attached to the outside of the packaging bag in a circular distribution), so that the adsorption component drives the packaging bag to expand proportionally. For example, when the printed packaging bag is a rectangular bag, the distance from the center point of the rectangle to the edge is inconsistent. At this time, the rotating disk 4 The inclination of the upper inclined groove is inconsistent. At this time, the sliding distance of the fixed frame 5 is different. Because the diagonal and length and width need to be enlarged in equal proportion, the length of the fixed frame 5 is adjusted accordingly according to the edge position of the rectangular belt (that is, several adsorption components are attached to the outside of the packaging bag in a rectangular distribution). The visual detection device 7 is composed of a visual detection module, a graphic analysis module and an information sending module. The visual detection module is used to photograph the wrinkles on the outside of the packaging bag, the graphic analysis module is used to calculate the stretching degree according to the wrinkles on the outside of the packaging bag, and the information sending module is used to send the stretching degree of the packaging bag to the conductive slip ring 6. The motion component is used to drive the fixed plate 3 to realize simple biaxial motion (two mutually perpendicular linear motions). In this scheme, it is composed of four symmetrically distributed vertical electric slide rails and two symmetrically distributed transverse electric slide rails. The transverse electric slide rail is fixedly connected to the sliders on the two adjacent vertical electric slide rails. The sliders on the two transverse electric slide rails are fixedly connected to the fixed part of the conductive slip ring 6. The response speed is fast and the precision is high. The sliders on the two transverse electric slide rails are fixedly connected to the fixed plate 3.

[0024] Specifically, Figure 3 and Figure 4 As shown, the adsorption assembly includes: an adsorption cylinder 201, fixedly connected to an adjacent fixed frame 5; a sealing ring 202, fixedly connected to the bottom of an adjacent adsorption cylinder 201, for improving the stability of the adjacent adsorption cylinder 201 in adsorbing the packaging bag; a first piston shaft 203, sealingly and slidably connected to the interior of the adsorption cylinder 201, and a first elastic member 204 is arranged between the first piston shaft 203 and the adjacent adsorption cylinder 201.

[0025] In the above scheme, the tops of several adsorption cylinders 201 are fixedly connected and connected with vacuum hoses. Several vacuum hoses are commonly connected with an external negative pressure extraction device. The extraction force acts on the first piston shaft 203. The first piston shaft 203 moves upward under the extraction force, so that the sealing ring 202, the first piston shaft 203, the adsorption cylinder 201 and the packaging bag cooperate to form a closed cavity gas to form a negative pressure adsorption packaging bag. The first elastic member 204 is a spring. The first elastic member 204 is used to drive the adjacent first piston shaft 203 to reset.

[0026] When it is necessary to spray-paint the packaging bag, the staff turns on the conveyor belt to move the packaging bag to be sprayed to the bottom of the visual inspection device 7, and then turns off the conveyor belt. The visual inspection device 7 then observes the wrinkles on the outside of the packaging bag and records them, and drives the fixed plate 3 to move downward through the vertical electric slide rail, so that the fixed plate 3 drives the rotating plate 4 to move downward synchronously. At this time, the fixed plate 3 and the rotating plate 4 drive the fixed frames 5 distributed at equal intervals in the circumferential direction to move downward synchronously, and this continues until the sealing rings 202 at the bottom of several adsorption cylinders 201 contact the packaging bag and fit each other, and the vertical electric slide rail is turned off and turned on. Turn on the negative pressure extraction device from the outside. At this time, the first piston shaft 203 in the adsorption cylinder 201 moves upward due to the extraction force. At the same time, the first elastic member 204 is compressed. The sealing ring 202, the first piston shaft 203, the adsorption cylinder 201 and the packaging bag cooperate to form a closed cavity. At this time, the first piston shaft 203 moves upward, increasing the volume of the closed cavity, presenting a negative pressure state, thereby adsorbing the packaging bag. Then, the vertical electric slide rail is turned on to reset upward. At this time, several adsorption cylinders 201 carry the packaging bags and move upward synchronously. After resetting to the initial state, the vertical electric slide rail is closed. At this time, the adsorption of the packaging bag is completed.

[0027] When the packaging bag is adsorbed, the conductive slip ring 6 is turned on to drive the rotating disk 4 to rotate. The rotation amplitude of the rotating disk 4 depends on the wrinkle condition detected by the visual detection device 7. At this time, the inclined groove on the rotating disk 4 pushes the plurality of fixed frames 5 to slide outward along the straight groove on the fixed disk 3 in equal proportion. The plurality of fixed frames 5 slide outward in equal proportion to drive the plurality of adsorption cylinders 201 to move synchronously, so that the packaging bag is subjected to a uniform outward pulling force, and the packaging bag is gradually stretched flat, thereby reducing the influence of its external wrinkles on the inkjet printing pattern and improving the accuracy of inkjet printing. When the rotating disk 4 rotates to the required amplitude, the conductive slip ring 6 is closed, and then the transverse electric slide rail is turned on to drive the fixed disk 3 to pass through the inkjet printing equipment 2, so that the inkjet printing pattern is smooth and the inkjet printing pattern is smooth. The painting device 2 sprays the packaging bag. After the packaging bag is sprayed, the vertical electric slide rail is turned on to drive the packaging bag to move downward, so that the packaging bag falls back onto the conveyor belt, and then the external negative pressure extraction device is closed. At this time, the first elastic member 204 pushes the adjacent first piston shaft 203 to reset, and the sealing ring 202, the first piston shaft 203, the adsorption cylinder 201 and the packaging bag cooperate to form a closed cavity. The volume is restored. At this time, the internal gas pressure is restored and no longer adsorbs the packaging bag. Then, the fixed plate 3 is driven to reset to the initial state through the vertical electric slide rail and the horizontal electric slide rail, and then the conveyor belt is turned on to move the next packaging bag to be sprayed to the bottom of the visual inspection device 7, and then the above steps are repeated.

[0028] In a further embodiment, Figure 4 As shown, it also includes: a sealing ring 301, which is the same in number as the adsorption cylinder 201 and is fixedly connected to the adjacent first piston shaft 203. The adsorption cylinder 201 is provided with a flow hole 302. The flow hole 302 is limited by the sealing ring 301. The sealing ring 301 is sealingly and slidably connected to the adjacent adsorption cylinder 201; an auxiliary sealing assembly, which is the same in number as the adsorption cylinder 201 and is installed on the adjacent adsorption cylinder 201. The sealing ring 202 is bent toward the inside of the adjacent adsorption cylinder 201 to increase the contact area with the packaging bag.

[0029] In the above scheme, the flow holes 302 are vertically distributed on the adjacent adsorption cylinder 201, and the sealing ring 301 blocks all the flow holes 302 in the initial state. At this time, the extraction force completely acts on the first piston shaft 203, causing it to move upward, and causing the sealing ring 301 to gradually release the blockage of the vertically distributed flow holes 302 from bottom to top, so that the negative pressure extraction force is gradually released from the flow holes 302, and this is done until the negative pressure of the gas in the closed cavity is equal to the elastic force accumulated in the adjacent first elastic member 204, the first piston shaft 203 stops moving and maintains stability. When the packaging bag is subjected to the pulling force and a gap appears between it and the adjacent sealing ring 202, the extraction force is greater than the reset force of the first piston shaft 203, and the first piston shaft 203 moves upward again to extract the adjacent packaging bag, so that it is fully fitted with the sealing ring 202 again, thereby improving the stability of the packaging bag adsorption.

[0030] When the adsorption cylinder 201 adsorbs the packaging bag, the extraction force drives the first piston shaft 203 to move upward, and at the same time the first elastic member 204 is compressed. At this time, the extraction force is greater than the elastic force of the first elastic member 204 and the negative pressure in the closed cavity. The first piston shaft 203 moves upward and drives the adjacent sealing ring 301 to move synchronously. The upward movement of the sealing ring 301 gradually releases the blockage of the adjacent vertically distributed flow holes 302. At this time, part of the extraction force is released along the flow holes 302, so that the extraction force on the first piston shaft 203 is gradually reduced, until the extraction force on the first piston shaft 203 is equal to the elastic force of the first elastic member 204 and the negative pressure in the closed cavity, and the first piston shaft 203 stops moving upward. At this time, the adsorption of the packaging bag is completed, and the negative pressure extraction device maintains the extraction force.

[0031] When the packaging bag is subsequently stretched and flattened, the pulling force between the sealing ring 202 and the packaging bag can easily cause a gap to appear between the two. At this time, the external gas will enter the sealing ring 202, the first piston shaft 203, the adsorption cylinder 201 and the packaging bag to form a closed cavity, gradually reducing the adsorption force of the adsorption cylinder 201 on the packaging bag, and then separation will occur. At this time, the negative pressure of the gas in the closed cavity will decrease. Since the extraction force remains unchanged, that is, the extraction force is greater than the elastic force of the first elastic member 204 and the negative pressure in the closed cavity, the extraction force drives the first piston shaft 203 to slide upward again, so that the volume of the closed cavity increases, forming a negative pressure to further adsorb the packaging bag, so that the packaging bag is subjected to the negative pressure and fits the sealing ring 202 again, thereby preventing the external gas from continuously entering the closed cavity, thereby causing the sealing ring 202 to separate from the packaging bag, and then causing the packaging bag to fail to be stretched and flattened, thereby reducing the accuracy of inkjet printing.

[0032] When the printing is completed and the external negative pressure extraction device is closed, the first elastic member 204 drives the adjacent first piston shaft 203 to reset, and the first piston shaft 203 drives the top sealing ring 301 to move downward, so that the sealing ring 301 blocks the adjacent vertically distributed flow holes 302. When the above situation occurs again when the packaging bag is printed, repeat the above steps.

[0033] In a further embodiment, Figure 4-Figure 6As shown, it also includes a plurality of auxiliary sealing components for strengthening the fitting strength between the packaging bag and the sealing ring 202, the number of which is the same as the adsorption cylinder 201, and the auxiliary sealing components are arranged on the adjacent adsorption cylinder 201, and the auxiliary sealing components include: a water storage ring 401, fixedly connected to the outside of the adjacent adsorption cylinder 201, the water storage ring 401 is sealingly and rotatably connected to the rotating ring 402, and the two cooperate to form a water storage cavity, the bottom of the rotating ring 402 is provided with circumferentially distributed through holes, and the circumferentially distributed through holes of the rotating ring 402 are all provided with hard film 403, and the water storage ring 401 is sealingly and slidably connected to the second piston shaft 404; a driving component, which is arranged on the adjacent water storage ring 401, and the driving component is used to push the adjacent second piston shaft 404.

[0034] In the above scheme, the water storage chamber is initially filled with pure water and does not contain impurities to avoid blocking the hard film 403. The array radius of the circumferentially distributed hard film 403 is the same as the maximum radius of the adjacent sealing ring 202, which is used to make the water in the water storage chamber fall to its edge. The hard film 403 has the same working principle as a pressure relief valve. When the pressure in the system exceeds the set pressure value, the hard film 403 opens and begins to release excessive pressure. The existing application is the screaming bottle mouth principle, and the water storage chamber is connected to an external water injection device, which is used to autonomously supply water to the water storage chamber to restore it to a full state. The bottom through holes of the rotating ring 402 are evenly spaced, so that the water injection positions are evenly distributed and the sealing strength is improved. The driving component is used to push the second piston shaft 404 to discharge the water in the water storage chamber from the circumferentially distributed hard film 403. By immersing water in the joint between the sealing ring 202 and the packaging bag, the mutual attraction between the water molecules forms tension to strengthen the joint strength between the sealing ring 202 and the packaging bag, thereby reducing the probability of separation between the two.

[0035] Specifically, Figure 4 and Figure 5 As shown, the driving assembly includes: a rack rack 405, fixedly connected to the adjacent sealing ring 301, the rack rack 405 is slidably connected to the adjacent adsorption cylinder 201, the water storage ring 401 is rotatably connected to the transmission gear 406 through a connecting piece, the rack rack 405 is meshed with the adjacent transmission gear 406, the second piston shaft 404 is fixedly connected to a linear array of teeth, and the second piston shaft 404 is meshed with the adjacent transmission gear 406 through the linear array of teeth; a rotating assembly is arranged on the adjacent rack rack 405, and the rotating assembly is used to drive the adjacent rotating ring 402 to rotate.

[0036] In the above scheme, the sealing ring 301 drives the adjacent rack rack 405 to move synchronously when moving upward. The rack rack 405 drives the adjacent second piston shaft 404 to move downward through the adjacent transmission gear 406 and the teeth of the linear array to discharge water. The water is injected into the joint between the sealing ring 202 and the packaging bag through the reversing linkage of the gear rack, thereby saving electricity and improving energy utilization.

[0037] Specifically, Figure 5 and Figure 6 As shown, the rotating assembly includes: a clamping shaft 407, which is fixedly connected to the adjacent rack frame 405, and the inner wall of the rotating ring 402 is provided with a sliding groove 408, and the sliding groove 408 is a spiral groove. The clamping shaft 407 is slidably connected with the adjacent sliding groove 408; a separation assembly, which is arranged on the adjacent first piston shaft 203, and the separation assembly is used to separate the sealing ring 202 and the packaging bag. The exterior of the clamping shaft 407 is electroplated with wear-resistant material to extend its own service life.

[0038] In the above scheme, the sealing ring 301 drives the adjacent rack 405 to move synchronously when moving upward. The rack 405 drives the rotating ring 402 to rotate through the clamping shaft 407 and the sliding groove 408 at the bottom. The rotation of the rotating ring 402 is achieved through linkage, which reduces resource utilization and saves energy. The rotating ring 402 drives the hard film 403 distributed at equal intervals in the circumferential direction to continuously change the water injection position, so that the water falls evenly to the joint between the sealing ring and the packaging bag. The exterior of the clamping shaft 407 is electroplated with a chrome coating to improve the hardness and wear resistance of the clamping shaft 407 itself.

[0039] When the external negative pressure extraction device drives the first piston shafts 203 to move upward, the first piston shaft 203 drives the rack 405 to move upward synchronously through the adjacent sealing ring 301, and the rack 405 moves upward to drive the adjacent transmission gear 406 to rotate, and the transmission gear 406 drives the adjacent second piston shaft 404 to move downward synchronously through the teeth of the linear array, and the second piston shaft 404 moves downward to push the water in the adjacent water storage chamber, increase the pressure in the water storage chamber and overcome the threshold of the circumferentially distributed hard film 403, so that the water in the adjacent water storage chamber is discharged to the outside along the annular array of hard film 403, and falls to the fitting place between the sealing ring 202 and the packaging bag, thereby enhancing the fitting degree between the sealing ring 202 and the packaging bag. When packaging the bag, water is immersed in the joint between the sealing ring 202 and the packaging bag, so that the tension of the water strengthens the joint strength between the sealing ring 202 and the packaging bag, reducing the probability of separation between the two. At the same time, when the rack 405 moves upward, the rack 405 drives the clamping shaft 407 at its bottom to move upward synchronously. At this time, the clamping shaft 407 slides along the adjacent sliding groove 408, so that the clamping shaft 407 drives the rotating ring 402 to rotate through the adjacent sliding groove 408, and the rotating ring 402 drives the hard film 403 of the annular array to rotate synchronously, so that the water falls evenly to the joint between the sealing ring 202 and the packaging bag, avoiding the water spraying position being fixed, resulting in the sealing part of the sealing ring 202 and the packaging bag being unable to be immersed in water, resulting in a decrease in the local fitting and sealing degree.

[0040] When the packaging bag is sprayed and the first piston shaft 203 is reset downward, the first piston shaft 203 drives the top sealing ring 301 to reset downward. At this time, the sealing ring 301 drives the adjacent transmission gear 406 to reset and rotate through the adjacent rack rack 405, so that the transmission gear 406 drives the adjacent second piston shaft 404 to reset upward through the teeth of the linear array. At the same time, the external water injection device supplies water to the water storage chamber to always keep the water in the water storage chamber full. When the packaging bag is sprayed again, the above steps are repeated.

[0041] In a further embodiment, Figure 7 As shown, the separation component includes: a first clamping block 501, which is fixedly connected to the adjacent first piston shaft 203, the interior of the adsorption cylinder 201 is slidably connected to the second clamping block 502 through a connecting piece, the first clamping block 501 is squeezed and matched with the adjacent second clamping block 502, and a second elastic member 503 is arranged between the adsorption cylinder 201 and the adjacent second clamping block 502 through the connecting piece; the elastic force of the first elastic member 204 is greater than the elastic force of the adjacent second elastic member 503.

[0042] In the above scheme, the first card block 501 and the second card block 502 both have symmetrically distributed inclined surfaces, and the inclined surfaces of the two cooperate with each other. The second elastic member 503 is a spring, which is used to drive the adjacent second card block 502 to reset, so that the second card block 502 delays the reset of the first card block 501 until the extraction force of the external negative pressure extraction device disappears. At this time, the first elastic member 204 is in a compressed state to overcome the elastic force of the adjacent second elastic member 503 to accelerate the downward reset, so that the gas in the closed cavity forms a pressure fluctuation, so that the sealing ring and the packaging bag are better separated.

[0043] When the packaging bag is adsorbed, the first piston shaft 203 moves upward along the adjacent adsorption cylinder 201 and drives the first clamping block 501 thereon to move upward synchronously. The first clamping block 501 moves upward and contacts the adjacent second clamping block 502, and squeezes the second clamping block 502 to slide along the connecting piece inside the adsorption cylinder 201. At the same time, the second elastic member 503 is compressed. When the first clamping block 501 is separated from the second clamping block 502, the second elastic member 503 pushes the second clamping block 502 to reset, and so on until the first piston shaft 203 stops moving. At this time, the adsorption of the packaging bag is completed. When the packaging bag is sprayed, the external negative pressure extraction device is closed, and the extraction force on the first piston shaft 203 gradually decreases until it disappears. At this time, the first elastic member 204 gradually resets as the extraction force disappears, and drives the adjacent first piston shaft 203 to reset, so that the first piston shaft 203 drives the first clamping block 501 thereon. When the first card block 501 contacts the adjacent second card block 502, the first piston shaft 203 is still subjected to a partial extraction force, which causes the first elastic member 204 to be unable to overcome the elastic force of the second elastic member 503 when it is reset, thereby slowing down the reset speed of the first piston shaft 203, and so on until the extraction force completely disappears. At this time, the first elastic member 204 overcomes the elastic force of the second elastic member 503, and the first card block 501 squeezes the second card block 502, and the second card block 502 slides along the connecting member inside the adsorption cylinder 201. At this time, due to the disappearance of the extraction force, the reset speed of the first elastic member 204 is accelerated, thereby pushing the adjacent first piston shaft 203 to accelerate synchronously, so that the first piston shaft 203 accelerates the reset speed, thereby driving the pressure fluctuation of the gas below it, so that the sealing ring 202 is better separated from the packaging bag, and the packaging bag and the sealing ring 202 are prevented from adhering to each other under the action of water tension.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A printing device for packaging production, characterized in that: Included are: Base (1); A spray painting device (2) fixedly connected to the base (1) and used for spraying patterns and information on the outside of the packaging bag; A fixed plate (3) is arranged on the base (1) and is located below the inkjet printing device (2); the fixed plate (3) is provided with a plurality of straight grooves in a circumferential direction; the fixed plate (3) is detachably and rotatably connected to a rotating plate (4); the rotating plate (4) is circumferentially provided with oblique grooves having the same number of straight grooves; the straight grooves on the fixed plate (3) and adjacent oblique grooves on the rotating plate (4) are slidably connected to a fixed frame (5); the base (1) is provided with a conductive slip ring (6); the rotating end of the conductive slip ring (6) is detachably and fixedly connected to the rotating plate (4); A visual inspection device (7) fixedly connected to the base (1), the visual inspection device (7) being used to observe the appearance of the packaging bag; A motion component, disposed on the base (1), and used to drive the fixed plate (3) to move; The adsorption components are the same in number as the fixing frames (5) and are mounted on adjacent fixing frames (5), and the adsorption components are used to adsorb packaging bags.

2. A printing device for packaging production according to claim 1, characterized in that: The adsorption component includes: An adsorption cylinder (201) is fixedly connected to an adjacent fixing frame (5); A sealing ring (202) fixedly connected to the bottom of the adjacent adsorption cylinder (201) and used to improve the stability of the adjacent adsorption cylinder (201) in adsorbing the packaging bag; The first piston shaft (203) is sealingly and slidably connected to the interior of the adsorption cylinder (201), and a first elastic member (204) is provided between the first piston shaft (203) and the adjacent adsorption cylinder (201).

3. A printing device for packaging production according to claim 2, characterized in that: Also included are: The blocking rings (301) are the same in number as the adsorption cylinders (201) and are fixedly connected to the adjacent first piston shaft (203). The adsorption cylinder (201) is provided with a flow hole (302). The flow hole (302) is sealed and matched with the blocking ring (301). The blocking ring (301) is sealingly and slidably connected to the adjacent adsorption cylinder (201).

4. A printing device for packaging production according to claim 3, characterized in that: The sealing ring (202) is bent toward the inside of the adjacent adsorption cylinder (201) to increase the contact area between the sealing ring (202) and the packaging bag.

5. A printing device for packaging production according to claim 4, characterized in that: Also included are: Auxiliary sealing components, the number of which is the same as the adsorption cylinders (201), the auxiliary sealing components being arranged on adjacent adsorption cylinders (201), the auxiliary sealing components being used to enhance the fit strength between the packaging bag and the sealing ring (202); The auxiliary sealing assembly comprises: a water storage ring (401), fixedly connected to the outside of the adjacent adsorption cylinder (201); the water storage ring (401) is sealingly and rotatably connected to a rotating ring (402), and the two cooperate to form a water storage cavity; the bottom of the rotating ring (402) is provided with circumferentially distributed through holes, and the circumferentially distributed through holes of the rotating ring (402) are all provided with hard film films (403); and the water storage ring (401) is sealingly and slidably connected to a second piston shaft (404); A drive assembly is arranged on the adjacent water storage ring (401), and the drive assembly is used to push the adjacent second piston shaft (404).

6. A printing device for packaging production according to claim 5, characterized in that: The drive assembly comprises: A rack rack (405) is fixedly connected to the adjacent blocking ring (301); the rack rack (405) is slidably connected to the adjacent adsorption cylinder (201); the water storage ring (401) is rotatably connected to a transmission gear (406) via a connecting piece; the rack rack (405) meshes with the adjacent transmission gear (406); the second piston shaft (404) is fixedly connected to a linear array of teeth; the second piston shaft (404) meshes with the adjacent transmission gear (406) via the linear array of teeth; A rotating assembly is arranged on the adjacent rack frame (405), and the rotating assembly is used to drive the adjacent rotating ring (402) to rotate.

7. A printing device for packaging production according to claim 6, characterized in that: The rotating assembly comprises: A clamping shaft (407) is fixedly connected to the adjacent rack frame (405); the inner wall of the rotating ring (402) is provided with a sliding groove (408); the sliding groove (408) is a spiral groove; the clamping shaft (407) is slidably connected to the adjacent sliding groove (408); A separation component is arranged on the adjacent first piston shaft (203), and is used for separating the sealing ring (202) from the packaging bag.

8. A printing device for packaging production according to claim 7, characterized in that: The exterior of the clamping shaft (407) is electroplated with wear-resistant material to extend its service life.

9. A printing device for packaging production according to claim 6, characterized in that: The separation component comprises: The first clamping block (501) is fixedly connected to the adjacent first piston shaft (203); the interior of the adsorption cylinder (201) is slidably connected to the second clamping block (502) via a connecting piece; the first clamping block (501) is squeezed and matched with the adjacent second clamping block (502); and a second elastic member (503) is provided between the adsorption cylinder (201) and the adjacent second clamping block (502) via the connecting piece.

10. A printing device for packaging production according to claim 9, characterized in that: The elastic force of the first elastic member (204) is greater than the elastic force of the adjacent second elastic member (503).

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