An automatic magnetic sheet pasting device for carton packaging

Abstract

The application discloses an automatic magnetic sheet pasting device for carton packaging, and relates to the technical field of carton processing. The device comprises a conveying line for conveying paper covers one by one; a marking mechanism located at the front end of the conveying line for marking a magnetic sheet adapting area on the paper cover; a rejection mechanism for rejecting the cover body at the magnetic sheet adapting area on the paper cover to form an installation groove; a dispensing mechanism for brushing adhesive into the installation groove; a sheet pasting mechanism for cooperating with the dispensing mechanism to paste and fix the magnetic sheets in the installation groove one by one; and a discharging mechanism located at the end of the conveying line for discharging the paper covers with the pasted magnetic sheets from the conveying line one by one. The rejection mechanism, the dispensing mechanism and the sheet pasting mechanism are sequentially and spacedly arranged on the conveying line along the conveying direction of the conveying line. The application has the effect of improving the production efficiency of the paper cover magnetic sheet installation.

Description

Technical Field

[0001] The present application relates to the technical field of paper box processing, and in particular to an automatic magnetic sheet sticking device for paper box packaging. Background Art

[0002] Some existing paper gift boxes consist of a box body and a flip-up paper cover. To ensure stable storage of items within the box and facilitate opening the cover, magnetic discs are often attached to both the box body and the paper cover. The magnetic discs allow the box body and the paper cover to be attracted or separated, allowing the box to be opened or closed.

[0003] When installing magnetic sheets on paper covers, a die-cutting machine is often used to first engrave the location of the mounting slot for the magnetic sheets on the paper covers, and then the cover body at the mounting slot on the paper covers is removed to form the mounting slot; the die-cut paper covers are then stacked and transported to a device for applying magnetic sheets, and then adhesive is applied to the mounting slots on the paper covers one by one, and finally the magnetic sheets are glued and fixed in the mounting slots on the paper covers.

[0004] Regarding the above-mentioned related technologies, when the die-cutting machine cuts the installation groove on the paper cover, the cover part of the paper cover at the installation groove will be removed, exposing the installation groove. Since there are a lot of paper scraps during the production of paper gift boxes, when the die-cut paper cover is transported to the magnetic sheet bonding area, the installation groove is exposed for a long time, resulting in paper scraps attached to the installation groove of the paper cover. In order to ensure the stability of the magnetic sheet bonding, in the existing production, an independent dust collection step is added before applying the adhesive, or the time of pressing the magnetic sheet on the paper cover is extended. The above-mentioned processing methods will extend the time it takes for the paper cover to install the magnetic sheet, reducing production efficiency. Summary of the Invention

[0005] In order to improve the problem of low production efficiency when installing magnetic sheets on paper covers, the present application provides an automatic magnetic sheet sticking device for paper box packaging.

[0006] The present application provides an automatic magnetic sheet attaching device for carton packaging, which adopts the following technical solution:

[0007] An automatic magnetic sheet sticking device for carton packaging, comprising:

[0008] Conveyor line, used to convey paper covers one by one;

[0009] An engraving mechanism, located at the front end of the conveying line, is used to engrave a magnetic sheet adaptation area on the paper cover;

[0010] The rejection mechanism is used to reject the cover body at the magnetic sheet adaptation area on the paper cover to form a mounting groove;

[0011] Glue dispensing mechanism, used to apply glue into the installation groove;

[0012] The patch mechanism is used to cooperate with the dispensing mechanism to fix the magnetic sheets one by one in the installation slot;

[0013] A feeding mechanism is located at the end of the conveyor line and is used to send the multiple paper covers with magnetic sheets attached thereto one by one away from the conveyor line;

[0014] The rejecting mechanism, the dispensing mechanism and the patch mechanism are sequentially arranged on the conveying line at intervals along the conveying direction of the conveying line.

[0015] Using this technical solution, the engraving mechanism creates a magnetic disc-fitting area on the paper cover for mounting the magnetic disc. The conveyor line then transports the engraved paper covers one by one. When the paper cover reaches the rejection mechanism, it removes the cover body at the magnetic disc-fitting area from the paper cover, creating a mounting slot for the magnetic disc. The paper cover with the mounting slot is then transported by the conveyor line to the gluing mechanism. Because the gluing mechanism and the rejection mechanism are located adjacent to each other, the mounting slot is exposed for a shorter period of time during transport, reducing the amount of paper scraps adhering to the slot and allowing the gluing mechanism to more thoroughly and securely apply glue to the inner wall of the slot. The conveyor line then transports the glued paper cover to the mounting mechanism, which presses the magnetic disc into the mounting slot, ensuring a relatively stable adherence to the paper cover. Finally, the unloading mechanism removes the paper cover with the attached magnetic disc from the conveyor line, minimizing the accumulation of paper covers at the end of the conveyor line. The above-mentioned structural design of an automatic magnetic sheet pasting device for paper box packaging reduces the accumulation of paper scraps in the installation slot due to long exposure time by arranging the rejection mechanism in close proximity to the front of the dispensing mechanism, which helps to improve the stability of the magnetic sheet's adhesion in the installation slot, shortens the time for pressing the magnetic sheet, and improves the production efficiency of installing the magnetic sheet on the paper cover.

[0016] Optionally, a bracket is provided on the conveyor line, and the rejection mechanism includes a needle tilted and movably provided on the bracket, a driving assembly driving the needle to reciprocate, and a flipping assembly provided on the needle, wherein the driving assembly is provided on the bracket;

[0017] When the driving assembly drives the needle to move toward the conveying line, the needle is obliquely inserted into the installation groove along the edge of the magnetic sheet adaptation area, and the flipping assembly pushes the cover body to separate from the paper cover.

[0018] By adopting the above technical solution, the bracket movably installs the needle above the conveyor line. When the conveyor line transports the paper cover to the bottom of the needle, the driving assembly drives the needle to move toward the paper cover, so that the needle is obliquely inserted from the edge of the magnetic sheet adaptation area into the installation groove; then the flipping assembly is started, and the flipping assembly pushes the cover body of the magnetic sheet adaptation area to move away from the paper cover, so that the cover body is separated from the paper cover, and the installation groove on the paper cover is exposed.

[0019] Optionally, the driving assembly includes a push plate arranged for horizontal sliding and a driving member that drives the push plate to slide back and forth, and the end of the needle away from the conveyor line slides vertically and is connected to the push plate, and the sliding direction of the push plate is consistent with the length direction of the projection of the needle on the conveyor line.

[0020] By adopting the above technical solution, the driving member is started, and the driving member drives the push plate to slide horizontally on the conveyor line. Since the needle is movably installed on the bracket, and the end of the needle is connected to the push plate in a sliding direction along the vertical direction, when the push plate moves toward the magnetic disk adaptation area, the push plate pushes the needle to slide toward the magnetic disk adaptation area, and at the same time, the end of the needle moves on the push plate toward the conveyor line, so that the end of the needle away from the push plate is obliquely inserted from the magnetic disk adaptation area into the installation groove; when the push plate moves in the direction away from the magnetic disk adaptation area, the push plate drives the needle to move in the direction away from the conveyor line. At this time, the end of the needle moves on the push plate away from the conveyor line, thereby completing the automatic insertion and removal of the needle on the paper cover.

[0021] Optionally, the needle is hollow, a hole is provided through the side wall of the needle away from the conveying line, and a notch is provided on the side wall of the needle close to the conveying line;

[0022] The turning assembly includes a rotating needle disposed in the needle, a telescopic rod disposed in the insertion hole, and a reset member that drives the needle to rotate parallel to the needle, and the end of the telescopic rod away from the needle is mounted on the bracket;

[0023] When the needle is obliquely inserted into the mounting groove along the edge of the magnetic sheet adaptation area, the needle moves until the insertion hole is aligned with the telescopic rod, the telescopic rod is inserted into the insertion hole and pushes one end of the needle to rotate toward the conveyor line, and the other end of the needle extends from the notch and pushes the cover body to separate from the paper cover.

[0024] By adopting the above technical solution, when the push plate pushes the needle toward the magnetic sheet adapter area until the socket on the needle aligns with the telescopic rod, the needle is stopped from moving. At this point, the notched end of the needle is inserted obliquely into the mounting slot. The telescopic rod is then activated, inserted from the socket into the needle and pushing the pick pin to rotate. The end of the pick pin near the notch rotates away from the conveyor line, pushing the cover body on the magnetic sheet adapter area away from the paper cover until the cover body separates from the paper cover, thereby achieving rapid and automatic removal of the cover body. The telescopic rod is then activated and removed from the socket. The pick pin, driven by the reset member, rotates to a position parallel to the needle. At this point, neither end of the pick pin extends beyond the needle setting.

[0025] Optionally, an air pump is provided on the bracket, an air cylinder is provided at one end of the telescopic rod close to the puncture needle, and the air pump is connected to the air cylinder through an air tube;

[0026] When the telescopic rod is inserted into the insertion hole, the air pump blows air into the puncture needle through the air cylinder, and the air overflows from the notch.

[0027] By adopting the above technical solution, when using the pick needle to remove the cover, the air pump is activated and injects gas into the air cylinder through the air pipe. The gas enters the needle through the air cylinder and moves toward the notch inside the needle, where it overflows. As the pick needle separates the cover, the gas blows the cover away from the conveyor line, making it more quickly separated from the paper cover. At the same time, the flowing gas can also blow away the paper scraps generated when the cover is separated from the paper cover, reducing the accumulation of paper scraps in the installation slot.

[0028] Optionally, a material collecting pipe is further provided on the conveying line, and the material collecting pipe is located on a side of the magnetic sheet adaptation area away from the needle, and an air suction pump connected to the material collecting pipe is provided on the conveying line.

[0029] By adopting the above technical solution, when the picking needle picks the cover body, the suction pump is started, and the suction pump adsorbs the cover body through the collecting pipe. On the one hand, it helps to quickly separate the cover body from the paper cover, and on the other hand, it can collect the detached cover body. At the same time, it can also adsorb the paper scraps generated when the cover body is separated, thereby reducing the accumulation of paper scraps in the installation groove.

[0030] Optionally, a baffle is provided on the bracket, the baffle is located directly above the needle, and one end of the baffle away from the bracket is connected to the inner wall of the collecting pipe.

[0031] By adopting this technical solution, when the pick needle separates the cover from the paper cover, the baffle can block the cover, minimizing the pick needle from ejecting the cover outside the collection tube's suction area and ensuring that the cover enters the collection tube as much as possible. At the same time, the baffle can secure the collection tube's entrance, allowing the cover to quickly enter the collection tube for collection after being separated from the paper cover.

[0032] Optionally, the glue dispensing mechanism includes a glue storage tube, a glue dispensing part movably arranged on the glue storage tube, and a lifting assembly for driving the glue dispensing part to move up and down. The glue storage tube is suspended above the conveyor line, and an exit hole is opened at one end of the glue storage tube close to the conveyor line for the glue dispensing part to pass through.

[0033] By adopting the above technical solution, the lifting component drives the glue dispensing part to rise and fall and slide in the glue storage tube, so that glue adheres to the glue dispensing part; when the conveyor line transports the paper cover with the mounting groove to the bottom of the glue storage tube, the lifting component is started, and the lifting component drives the glue dispensing part to extend from the outlet hole, so that the glue dispensing part contacts the inner wall of the mounting groove on the paper cover, and the glue is brushed onto the inner wall of the mounting groove, thereby completing the gluing process of the paper cover.

[0034] Optionally, the dispensing part includes a push rod and a plurality of flexible brush strips arranged on one end of the push rod close to the conveying line. The flexible brush strips are movably abutted in the mounting groove, and the glue storage tube is provided with a rotating component for driving the flexible brush strips to rotate and brush in the mounting groove.

[0035] By adopting the above technical solution, the lifting component drives multiple flexible brush strips to abut against the inner wall of the installation groove through the push rod, and then starts the rotating component. The rotating component drives multiple flexible brush strips to rotate in the installation groove, so that the glue is evenly applied to the inner wall of the installation groove, which helps to quickly and stably bond the magnetic sheets.

[0036] Optionally, a control component for limiting the automatic dripping of glue from the outlet hole is provided in the glue storage tube.

[0037] By adopting the above technical solution, when the lifting component drives the dispensing part to be located in the glue storage tube, the outlet hole of the glue storage tube is open. At this time, the control component can limit the glue in the glue storage tube from dripping through the outlet hole under the action of gravity, which has the effect of saving glue.

[0038] In summary, this application includes at least one of the following beneficial technical effects:

[0039] 1. By placing the rejection mechanism close to the front of the dispensing mechanism, the accumulation of paper scraps in the installation slot due to prolonged exposure time is reduced, which helps to improve the stability of the magnetic sheet's adhesion in the installation slot, shorten the time it takes to press the magnetic sheet, and improve the production efficiency of paper cover installation of magnetic sheets;

[0040] 2. The needle moves until the socket is aligned with the telescopic rod. The telescopic rod is inserted into the socket and pushes one end of the needle to rotate toward the conveyor line. The other end of the needle extends from the notch and pushes the cover to separate quickly and automatically from the paper cover, improving the production efficiency of the magnetic sheet for paper cover installation.

[0041] 3. When the cover is removed by the needle, the air pump injects gas into the needle through the air cylinder. The gas moves in the needle toward the notch and overflows from the notch. The flowing gas can not only make the cover separate from the paper cover more quickly, but also blow away the paper scraps generated when the cover is separated from the paper cover, thereby reducing the accumulation of paper scraps in the installation slot. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1It is a schematic diagram of the overall structure of an embodiment of the present application.

[0043] Figure 2 It is a structural diagram of the needle, drive assembly, flip assembly, bracket, air pump and baffle in the embodiment of the present application.

[0044] Figure 3 It is a schematic diagram of the cross-sectional structure of the needle in the embodiment of the present application, mainly used to show the needle picking and resetting parts.

[0045] Figure 4 It is a structural schematic diagram of the glue storage tube, glue dispensing part, lifting assembly, rotating assembly and support plate in the embodiment of the present application.

[0046] Figure 5 It is a structural diagram of the glue storage tube, glue dispensing unit, lifting assembly, driving gear, driven gear, sleeve, mounting plate and motor in the embodiment of the present application.

[0047] Figure 6 It is a schematic cross-sectional structural diagram of the rubber storage tube in the embodiment of the present application, mainly used to display the control components.

[0048] Reference numerals: 1. conveyor line; 2. marking mechanism; 3. rejection mechanism; 31. needle; 32. driving assembly; 321. push plate; 322. driving member; 33. flipping assembly; 331. picking needle; 332. telescopic rod; 333. reset member; 4. dispensing mechanism; 41. glue storage tube; 42. dispensing unit; 421. push rod; 422. flexible brush strip; 43. lifting assembly; 5. patch mechanism; 6. unloading mechanism; 7. bracket; 8. Socket; 9. Notch; 10. Air pump; 11. Air cylinder; 12. Air pipe; 13. Collecting pipe; 14. Suction pump; 15. Baffle; 16. Outlet; 17. Rotating assembly; 171. Driving gear; 172. Driven gear; 173. Sleeve; 174. Mounting plate; 175. Motor; 18. Control part; 19. Mounting slot; 20. Slider; 21. Support plate; 22. Limiting slot; 23. Support rod; 24. U-shaped frame. DETAILED DESCRIPTION

[0049] The following is combined with Figure 1-6 This application is described in further detail.

[0050] The embodiment of the present application discloses an automatic magnetic sheet sticking device for carton packaging. Figure 1An automatic magnetic sheet pasting device for paper box packaging includes a conveyor line 1 and an engraving mechanism 2, a rejection mechanism 3, a glue dispensing mechanism 4, a sheet pasting mechanism 5, and a feeding mechanism 6, which are arranged in sequence along the conveying direction of the conveyor line 1. The engraving mechanism 2 is located at the front end of the conveyor line 1. The engraving mechanism 2 is specifically a slotting machine. The slotting machine pre-engraves three magnetic sheet adaptation areas at intervals on the side of the paper cover. At this time, the slots on the paper cover are not exposed. Then, the conveyor line 1 transports the paper covers with pre-engraved magnetic sheet adaptation areas backward one by one. Since each paper cover has three magnetic sheet adaptation areas, three groups of rejection mechanisms 3 are also provided on the conveyor line 1. The three groups of rejection mechanisms 3 correspond to the three magnetic sheet adaptation areas on the same paper cover. When the paper cover is conveyed to the rejection mechanism 3, the three rejection mechanisms 3 simultaneously reject the cover body at the three magnetic sheet adaptation areas from the paper cover, so that three installation slots 19 for installing magnetic sheets are formed on the paper cover.

[0051] The paper cover with mounting slots 19 is then rapidly transported by conveyor line 1 to glue dispensing mechanism 4, which is also provided in three groups. These three dispensing mechanisms 4 simultaneously apply glue to each of the three mounting slots 19 on the paper cover, ensuring a relatively smooth and uniform application of glue to the inner walls of the mounting slots 19. Conveyor line 1 then transports the glued paper cover to mounting mechanism 5, also provided in three groups. These three mounting mechanisms 5 simultaneously press three magnetic discs into the three mounting slots 19 on the paper cover. The paper cover with the attached magnetic discs is then transported by conveyor line 1 toward unloading mechanism 6, which is configured as a belt line at the end of conveyor line 1, at a lower height than conveyor line 1 and in a direction perpendicular to the conveyor line. After the paper cover with the attached magnetic discs is transported to the belt line, it is removed from conveyor line 1, leaving multiple paper covers arranged in intervals along the belt line.

[0052] Reference Figure 1 and Figure 2 A bracket 7 is provided on the conveyor line 1 at the rejecting mechanism 3. The rejecting mechanism 3 is mounted above the conveyor line 1 via the bracket 7. The rejecting mechanism 3 includes a needle 31 that is tilted and movably mounted on the bracket 7, a drive assembly 32 that drives the needle 31 to reciprocate, and a flip assembly 33 mounted on the needle 31. Three support rods 23 are mounted on the bracket 7. The three support rods 23 are spaced apart along the conveying direction of the conveyor line 1. Sliding holes are formed on the support rods 23 along the tilting direction of the needle 31. The needle 31 is slidably connected to the support rods 23 through the sliding holes.

[0053] Reference Figure 2 and Figure 3The drive assembly 32 includes a push plate 321 that slides horizontally and a drive member 322 that drives the push plate 321 to slide back and forth. The drive member 322 is specifically a screw thread pair mounted on the bracket 7. Driven by the screw thread pair, the push plate 321 slides back and forth horizontally on the conveyor line 1, and the sliding direction of the push plate 321 is consistent with the longitudinal direction of the projection of the needle 31 on the conveyor line 1. The end of the needle 31 away from the conveyor line 1 is integrally formed with a slider 20. The push plate 321 is provided with a slide groove that is slidably connected to the slider 20, and the longitudinal direction of the slide groove is vertical. When the screw thread pair drives the push plate 321 to move toward the magnetic disk adaptation area, the push plate 321 pushes the needle 31 to slide on the support rod 23 toward the magnetic disk adaptation area. At the same time, the end of the needle 31 moves on the push plate 321 toward the conveyor line 1, so that the end of the needle 31 away from the push plate 321 is obliquely inserted from the magnetic disk adaptation area into the mounting groove 19.

[0054] In order to further improve the efficiency of separating the cover from the paper cover, when the end of the needle 31 is inserted into the mounting groove 19, the flip assembly 33 assists the needle 31 in pushing the cover to separate quickly from the paper cover. Figure 2 and Figure 3 The needle 31 is hollow, and a socket 8 is provided on the side wall of the needle 31 away from the conveyor line 1. A notch 9 is provided on the side wall of the needle 31 close to the conveyor line 1, and the socket 8 and the notch 9 are both located on the side of the needle 31 away from the conveyor line 1.

[0055] Reference Figure 2 and Figure 3 The turning assembly 33 includes a pick 331 that rotates within the needle 31, a telescopic rod 332 that inserts and retracts into the socket 8, and a reset member 333 that forces the pick 331 to rotate parallel to the needle 31. A rotating rod is mounted horizontally on the pick 331, its length aligned with the conveyor line 1's transmission direction. The pick 331 is pivotally connected to the inner wall of the needle 31 via the rotating rod. The telescopic rod 332 is located directly above the needle 31, with one end fixedly mounted on the bracket 7 and the other end inserted and retracted vertically into the socket 8. The reset member 333 is a torsion spring that fits over the rotating rod. One end of the torsion spring is fixedly connected to the pick 331, and the other end is fixedly connected to the inner wall of the needle 31. When the pick 331 is not subjected to external forces, the torsion spring forces the pick 331 to rotate parallel to the needle 31.

[0056] When the push plate 321 pushes the needle 31 to slide on the support rod 23, so that the end of the needle 31 with the notch 9 is inserted obliquely along the edge of the magnetic plate adapting area into the installation groove 19, the socket 8 on the needle 31 is aligned with the telescopic rod 332. The telescopic rod 332 is activated, and the telescopic rod 332 inserts into the socket 8 and pushes one end of the pick needle 331 toward the conveyor line 1. The other end of the pick needle 331 extends through the notch 9 and pushes the cover body to quickly separate from the paper cover. The telescopic rod 332 is then pulled out of the socket 8, and the pick needle 331, driven by the torsion spring, rotates to a position parallel to the needle 31.

[0057] In order to realize the storage and collection of the separated cover body, refer to Figure 1 and Figure 2 The conveyor line 1 is also equipped with three collection pipes 13, which correspond one to each of the three needles 31. The collection pipes 13 are located on the side of the magnetic disc adaption area, away from the needles 31. The ends of the collection pipes 13 are tilted and positioned above the magnetic disc adaption area. A baffle 15 is riveted to the support rod 23, located directly above the needles 31. The end of the baffle 15, away from the support rod 23, is adhesively connected to the inner wall of the collection pipe 13. An air pump 14 is provided on one side of the conveyor line 1, connected to all three collection pipes 13. The air pump 14 draws air from the paper cover through the collection pipes 13, which not only helps the cover to be quickly separated from the paper cover but also allows any detached cover to be quickly drawn into the collection pipes 13 for collection under the guidance of the baffle. The air pump 14 also absorbs paper scraps generated during cover separation, reducing their accumulation within the mounting slot 19.

[0058] In order to further improve the production efficiency of paper cover installation magnetic sheet, refer to Figure 2 and Figure 3 Three air pumps 10 are provided on the bracket 7, and the three air pumps 10 correspond to the three telescopic rods 332 one by one; the telescopic rod 332 is integrally formed with an air cylinder 11 at one end close to the puncture needle 31, and air holes are formed at both ends of the air cylinder 11. The air pump 10 is connected to the air hole at the end of the air cylinder 11 away from the puncture needle 31 through the air pipe 12; the telescopic rod 332 drives the air cylinder 11 to be plugged in and out of the socket 8 and movably abuts against one end of the picking needle 331. When the telescopic rod 332 drives the air cylinder 11 to be inserted into the insertion hole 8, the air hole at the end of the air cylinder 11 away from the air tube 12 is located in the needle 31, and the air pump 10 blows air into the needle 31 through the air cylinder 11, and the air overflows from the notch 9; as the picking needle 331 picks and separates the cover body, the air blows the cover body away from the conveying line 1, making the cover body separate from the paper cover more quickly. At the same time, the flowing air can also blow away the paper scraps generated when the cover body is separated from the paper cover, thereby reducing the accumulation of paper scraps in the installation groove 19.

[0059] Reference Figure 4 and Figure 5The glue dispensing mechanism 4 includes a glue storage tube 41, a glue dispensing unit 42 movably mounted on the glue storage tube 41, and a lifting assembly 43 for driving the glue dispensing unit 42 to move upward and downward. A support plate 21 is mounted on the conveyor line 1, and the glue storage tube 41 is vertically suspended above the conveyor line 1 via the support plate 21. A storage box for filling the glue storage tube 41 with glue is mounted on one side of the conveyor line 1. The glue storage tube 41 is hollow and cylindrical, and has an outlet hole 16 at the end of the glue storage tube 41 closest to the conveyor line 1, and an inlet hole at the end of the glue storage tube 41 away from the conveyor line 1.

[0060] In order to make the glue in the glue storage tube 41 evenly coated on the inner wall of the installation groove 19, refer to Figure 4 and Figure 5 The glue dispensing unit 42 includes a push rod 421 and a plurality of flexible brush strips 422 disposed on one end of the push rod 421 near the conveyor line 1. The push rod 421 is longer than the glue storage tube 41, and one end of the push rod 421 is provided with an inlet hole for the glue storage tube 41, while the other end is movably provided with an outlet hole 16 for the glue storage tube 41. The flexible brush strips 422 are made of plastic and are adhesively fixed to the end of the push rod 421 at intervals along the circumference of the push rod 421. In the absence of external force, the flexible brush strips 422 are bent and spread out at the end of the push rod 421.

[0061] Reference Figure 4 and Figure 5 A U-shaped frame 24 is mounted upside down on the support plate 21. A lifting assembly 43 is located on the U-shaped frame 24. The lifting assembly 43 includes a cylinder mounted on the U-shaped frame 24 and a coupling for coaxially connecting the output end of the cylinder to a push rod 421. The cylinder pushes the flexible brush strip 422 via the push rod 421 to move into contact with the mounting groove 19, thereby applying the glue in the glue storage tube 41 to the inner wall of the mounting groove 19.

[0062] In order to make the glue be applied to the installation groove 19 more evenly, refer to Figure 4 and Figure 5The glue storage tube 41 is provided with a rotating assembly 17 for driving the flexible brush strip 422 to rotate and apply paint in the mounting groove 19. The rotating assembly 17 includes a driving gear 171, a driven gear 172, a sleeve 173, a mounting plate 174 and a motor 175. The motor 175 is mounted and fixed on the support plate 21. The output shaft of the motor 175 passes through the support plate 21 and is coaxially fixed to the driving gear 171; the driven gear 172 is coaxially sleeved on the sleeve 173, and the mounting plate 174 fixes the sleeve 173 to the U-shaped frame 24. The push rod 421 slides through the sleeve 173. The driven gear 172 is meshed with the driving gear 171; a limiting groove 22 is provided on the peripheral wall of the push rod 421, and the length direction of the limiting groove 22 is consistent with the length direction of the push rod 421. A limiting block that slides with the limiting groove 22 is integrally formed on the inner wall of the sleeve 173. Under the joint action of the limiting groove 22 and the limiting block, the sleeve 173 can slide along the length direction of the push rod 421, but cannot rotate on the push rod 421 relative to the push rod 421.

[0063] To further avoid glue waste, refer to Figure 6 The glue storage tube 41 is provided with a control member 18 for limiting the automatic dripping of glue from the outlet hole 16. The control member 18 is configured as a sealing plug. The sealing plug is fixedly sleeved on the push rod 421 and slides in the glue storage tube 41 as the push rod 421 rises and falls. When the cylinder drives the push rod 421 to move away from the conveyor line 1, the flexible brush strip 422 enters the glue storage tube 41 through the outlet hole 16. When the push rod 421 drives the sealing plug to press against the inner wall of the end of the glue storage tube 41 away from the conveyor line 1, the sealing plug blocks the inlet hole on the glue storage tube 41, effectively limiting the glue in the glue storage tube 41 from dripping through the outlet hole 16 under the action of gravity, thereby saving glue.

[0064] The working principle of an automatic magnetic sheet attaching device for paper box packaging according to an embodiment of the present application is as follows: the engraving mechanism 2 engraves a magnetic sheet adapting area for mounting a magnetic sheet on a paper cover, and then the conveyor line 1 transports the engraved paper covers one by one; when the paper cover is transported to the rejection mechanism 3, the driving member 322 is activated, and the driving member 322 drives the push plate 321 to move toward the magnetic sheet adapting area. The push plate 321 pushes the needle 31 to slide on the support rod 23 toward the magnetic sheet adapting area, so that the end of the needle 31 away from the push plate 321 is obliquely inserted from the magnetic sheet adapting area into the mounting groove 19. When the socket 8 on the needle 31 is aligned with the telescopic rod 332, the telescopic rod 332 is activated, inserted into the socket 8, and pushes one end of the pick needle 331 to rotate toward the conveyor line 1. The other end of the pick needle 331 extends from the notch 9 and pushes the cover body to quickly separate from the paper cover.

[0065] At the same time, the air blowing pump 10 and the air suction pump 14 are started. The air suction pump 14 absorbs the cover body and paper scraps through the collecting pipe 13. The air blowing pump 10 allows gas to overflow from the notch 9 of the needle 31 and blows the cover body away from the conveyor line 1, so that the cover body is separated from the paper cover more quickly, while reducing the accumulation of paper scraps in the installation groove 19.

[0066] After the cover body and paper cover are separated, the telescopic rod 332 is pulled out of the insertion hole 8. The picking needle 331, driven by the torsion spring, rotates to a position parallel to the needle 31, and the conveyor line 1 transports the paper cover toward the glue dispensing mechanism 4. When the conveyor line 1 transports the paper cover with the mounting slot 19 to directly below the glue storage tube 41, the lifting assembly 43 is activated, forcing the glue dispensing unit 42 to extend from the outlet hole 16, bringing it into contact with the inner wall of the mounting slot 19 on the paper cover. Simultaneously, the rotating assembly 17 is activated, driving the multiple flexible brush strips 422 to rotate within the mounting slot 19, evenly applying glue to the inner wall of the mounting slot 19.

[0067] The conveyor line 1 transports the glued paper cover to the patch mechanism 5, which presses the magnetic sheet into the mounting groove 19. At this time, the magnetic sheet is more stably adhered to the paper cover. Finally, the unloading mechanism 6 sends the paper cover with the magnetic sheet attached to it away from the conveyor line 1.

[0068] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An automatic magnetic sheet sticking device for carton packaging, characterized by: include: A conveying line (1) for conveying paper covers one by one; An engraving mechanism (2) is located at the front end of the conveying line (1) and is used to engrave a magnetic sheet adaptation area on the paper cover; A rejection mechanism (3) is used to reject the cover body at the magnetic sheet adaptation area on the paper cover to form a mounting groove (19); A glue dispensing mechanism (4) for applying glue into the mounting groove (19); The patch mechanism (5) is used to cooperate with the glue dispensing mechanism (4) to fit and fix the magnetic sheets one by one in the mounting groove (19); A feeding mechanism (6) is located at the end of the conveyor line (1) and is used to send the plurality of paper covers with magnetic sheets attached thereto away from the conveyor line (1) one by one; Wherein, the rejecting mechanism (3), the dispensing mechanism (4) and the patch mechanism (5) are sequentially arranged at intervals on the conveying line (1) along the conveying direction of the conveying line (1); A bracket (7) is provided on the conveyor line (1), and the rejecting mechanism (3) comprises a needle (31) tilted and movably provided on the bracket (7), a driving assembly (32) for driving the needle (31) to reciprocate, and a flipping assembly (33) provided on the needle (31), wherein the driving assembly (32) is provided on the bracket (7); When the driving assembly (32) drives the needle (31) to move toward the conveying line (1), the needle (31) is obliquely inserted into the mounting groove (19) along the edge of the magnetic sheet adaptation area, and the flipping assembly (33) pushes the cover body to separate from the paper cover; The needle (31) is hollow, and a hole (8) is provided through the side wall of the needle (31) away from the conveyor line (1), and a notch (9) is provided on the side wall of the needle (31) close to the conveyor line (1); The turning assembly (33) includes a picking needle (331) that is rotated and disposed in the pricking needle (31), a telescopic rod (332) that is inserted and removed and disposed in the insertion hole (8), and a reset member (333) that drives the picking needle (331) to rotate parallel to the pricking needle (31), and the end of the telescopic rod (332) that is away from the pricking needle (31) is mounted on the bracket (7); When the needle (31) is obliquely inserted into the mounting groove (19) along the edge of the magnetic sheet adapting area, the needle (31) moves until the insertion hole (8) is aligned with the telescopic rod (332), the telescopic rod (332) is inserted into the insertion hole (8) and pushes one end of the needle (331) to rotate toward the conveying line (1), and the other end of the needle (331) extends from the notch (9) and pushes the cover body to separate from the paper cover; An air pump (10) is provided on the bracket (7), an air cylinder (11) is provided at one end of the telescopic rod (332) close to the puncture needle (31), and the air pump (10) is connected to the air cylinder (11) via an air pipe (12); When the telescopic rod (332) is inserted into the insertion hole (8), the air pump (10) blows air into the puncture needle (31) through the air cylinder (11), and the air overflows from the notch (9).

2. The automatic magnetic sheet attaching device for carton packaging according to claim 1, characterized in that: The driving assembly (32) includes a push plate (321) that is arranged to slide horizontally and a driving member (322) that drives the push plate (321) to slide back and forth. The end of the needle (31) away from the conveyor line (1) slides in the vertical direction and is connected to the push plate (321). The sliding direction of the push plate (321) is consistent with the length direction of the projection of the needle (31) on the conveyor line (1).

3. The automatic magnetic sheet attaching device for carton packaging according to claim 1, characterized in that: The conveying line (1) is further provided with a collecting pipe (13), the collecting pipe (13) being located on a side of the magnetic sheet adaptation area away from the pricking needle (31), and the conveying line (1) is provided with an air suction pump (14) in communication with the collecting pipe (13).

4. The automatic magnetic sheet attaching device for carton packaging according to claim 3, characterized in that: A baffle (15) is provided on the bracket (7), the baffle (15) is located directly above the needle (31), and one end of the baffle (15) away from the bracket (7) is connected to the inner wall of the collecting pipe (13).

5. The automatic magnetic sheet attaching device for carton packaging according to claim 1, characterized in that: The glue dispensing mechanism (4) comprises a glue storage tube (41), a glue dispensing portion (42) movably arranged on the glue storage tube (41), and a lifting assembly (43) for driving the glue dispensing portion (42) to move up and down. The glue storage tube (41) is suspended above the conveying line (1), and an outlet hole (16) for the glue dispensing portion (42) to pass through is opened at one end of the glue storage tube (41) close to the conveying line (1).

6. The automatic magnetic sheet attaching device for carton packaging according to claim 5, characterized in that: The glue dispensing portion (42) includes a push rod (421) and a plurality of flexible brush strips (422) arranged on one end of the push rod (421) close to the conveying line (1), wherein the flexible brush strips (422) are movably abutted in the mounting groove (19), and a rotating assembly (17) is provided on the glue storage tube (41) for driving the flexible brush strips (422) to rotate and brush in the mounting groove (19).

7. The automatic magnetic sheet attaching device for carton packaging according to claim 5, characterized in that: A control member (18) is provided in the glue storage tube (41) for limiting the automatic dripping of glue from the outlet hole (16).

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