A paper bowl packaging apparatus

Abstract

This invention discloses a packaging device for paper bowls, including a clamping station and an outer packaging pusher station arranged sequentially along the paper bowl's movement path. The clamping station has a clamping mechanism that clamps the outer packaging sticker onto the outer wall of the paper bowl. The outer packaging sticker has splicing edges coated with quick-drying adhesive on both sides along its circumferential direction. The two splicing edges converge and overlap with the clamping mechanism, and are bonded together. A bonding area coated with slow-drying adhesive is located at the middle of the two splicing edges, and this bonding area converges with the clamping mechanism and is bonded to the outer wall of the paper bowl. The outer packaging pusher station has an outer packaging pusher mechanism, which has an outer packaging pusher plate for pushing the outer packaging sticker to the rim of the paper bowl. The outer packaging pusher plate is located on the bottom side of the paper bowl along its axial direction and is movable along the axial direction, improving production efficiency. Furthermore, the slow-drying adhesive adheres the outer packaging sticker to the paper bowl, and the outer packaging pusher plate pushes the outer packaging sticker into place, preventing white edges at the rim of the paper bowl and increasing compressive strength.

Description

Technical Field

[0001] This invention relates to the field of packaging machinery technology, and in particular to a packaging device for paper bowls. Background Technology

[0002] In the current process of covering the outer wall of a paper noodle bowl with an outer packaging sticker, the sticker is typically fed in using a paper conveyor belt, and adhesive is sprayed onto its edges until it reaches a clamping station. A conical membrane is located at the clamping station, and the outer packaging sticker is wrapped around it using a clamping mechanism, forming a conical structure. A mold then presses the edges of the sticker to be pasted together. The formed sticker is then demolded and placed vertically in a positioning groove of a rotating mechanism. The paper noodle bowl is then placed within the conical structure formed by the inner and outer packaging stickers in the positioning groove, completing the process of covering the instant noodle bowl with the outer packaging sticker. This is similar to the process disclosed in patent document CN108860858A. In a set of instant noodle packaging equipment, the instant noodle block conveying and dropping mechanism is located above the instant noodle bowl conveying mechanism. The instant noodle bowl conveyor belt and the instant noodle bowls on it are intermittently driven to ensure that the instant noodle blocks fall accurately into the instant noodle bowls. Similarly, in the existing technology of wrapping the outer packaging of instant noodle bowls, the process of forming the outer packaging into a tube and the composite process of the outer packaging and the instant noodle paper bowl in this equipment not only requires to effectively improve the forming accuracy of the outer packaging, but also the efficiency of the entire production process is low. More importantly, it relies on the weight of the instant noodle paper bowl to fall, which can easily cause the outer packaging to not be wrapped properly, forming a white edge around the instant noodle paper bowl, resulting in a low compressive strength of the finished product. Summary of the Invention

[0003] The purpose of this invention is to provide a packaging device for paper bowls to solve the problems existing in the prior art. The device uses a clamping mechanism to directly wrap the outer packaging sticker onto the paper bowl, which improves the production efficiency. The outer packaging sticker and the paper bowl are adhered together by a slow-drying adhesive. Before it dries, the outer packaging sticker is pushed into place by an outer sticker pusher plate, which avoids white edges at the mouth of the paper bowl and increases the compressive strength.

[0004] To achieve the above objectives, the present invention provides the following solution: The present invention provides a packaging device for a paper bowl, including a clamping station and an outer packaging sticker pushing station arranged sequentially along the moving path of the paper bowl. The clamping station is provided with a clamping mechanism that clamps the outer packaging sticker onto the outer peripheral wall of the paper bowl. The outer packaging sticker has splicing edges coated with quick-drying adhesive on both sides along its circumferential direction. The two splicing edges are gathered together and overlapped with the clamping mechanism and bonded together. An adhesive area coated with slow-drying adhesive is provided at the middle position of the two splicing edges. The adhesive area is gathered together with the clamping mechanism and bonded to the outer peripheral wall of the paper bowl. The outer packaging sticker pushing station is provided with an outer packaging sticker pushing mechanism. The outer packaging sticker pushing mechanism is provided with an outer packaging sticker pushing plate for pushing the outer packaging sticker to the mouth of the paper bowl. The outer packaging sticker pushing plate is located on the bottom side of the paper bowl along the axial direction of the paper bowl and is movable along the axial direction of the paper bowl.

[0005] Preferably, the clamping mechanism includes a clamping body located below the clamping station, two arc-shaped clamping arms that, when snapped together, form a ring and clamp the outer packaging sticker. One end of the arc-shaped clamping arm is hinged to the clamping body, and the other end is provided with a telescopic mechanism for driving the arc-shaped clamping arm to clamp. A connecting rod is hinged between the telescopic mechanism and the arc-shaped clamping arm.

[0006] Preferably, the clamping station is provided with a pressing block for pressing the two splicing edges together, which is movably arranged along the radial direction of the paper bowl. The pressing block is located on the outer periphery of the outer packaging sticker and aligned with the two splicing edges after stacking.

[0007] Preferably, the outer packaging sticker is equipped with an annular tray that supports it and transmits it circumferentially. The inner circle of the annular tray is provided with a paper material turret mechanism that rotates intermittently. The annular tray is provided with a receiving station, a glue spraying station, and a clamping station in sequence along the circumference. The paper material turret mechanism is provided with a plurality of outer packaging sticker grippers that rotate with it and intermittently stop the outer packaging sticker at the receiving station, the glue spraying station, and the clamping station. The receiving station is provided with a feeding mechanism that spreads the outer packaging sticker on it. The glue spraying station is provided with a glue spraying mechanism. The glue spraying mechanism is provided with a first nozzle for applying fast-drying glue to the splicing edge and a second nozzle for spraying slow-drying glue to the bonding area. The first nozzle is movably disposed on the glue spraying mechanism along the radial direction of the outer packaging sticker, and the second nozzle is fixed on the glue spraying mechanism and corresponds to the bonding area.

[0008] Preferably, the annular tray is provided with a paper bowl turret mechanism on one side along the horizontal direction. The paper bowl turret mechanism is provided with a rotating frame that rotates intermittently. The rotating frame is provided with a plurality of conical membranes for fastening and positioning the paper bowls. The conical membranes rotate with the rotating frame and stop intermittently at the clamping station and the pushing and pasting station.

[0009] Preferably, the paper bowl turret mechanism has a paper bowl feeding mechanism on the side away from the annular tray. The paper bowl feeding mechanism has a guide channel for the directional movement of the paper bowl. One end of the guide channel has a discharge port that is coaxially connected to the conical membrane. The other end of the guide channel has an air blowing mechanism that blows the paper bowl and fastens it to the conical membrane.

[0010] Preferably, the rotating frame is equipped with a paper bowl pushing mechanism, which is located between the discharge port and the clamping part along the paper bowl conveying direction. The paper bowl pushing mechanism is provided with a paper bowl pushing plate for pushing the paper bowl into place, and the paper bowl pushing plate is arranged to move radially along the paper bowl.

[0011] Preferably, the annular tray is equipped with an embossing mechanism. The annular tray has a blank portion for accommodating the embossing mechanism. The blank portion is located between the glue spraying station and the material receiving station along the outer packaging label conveying direction. The embossing mechanism is equipped with an upper die head and a lower die head that press on both sides of the outer packaging label. The upper die head and / or the lower die head are respectively provided with embossing patterns on their surfaces close to each other.

[0012] Preferably, the feeding mechanism includes a paper feeding frame, on which the outer packaging stickers are stacked. The paper feeding frame has a rotating discharge frame at its discharge end. The discharge frame has a plurality of suction cup support rods that rotate at equal intervals along its circumference. Each suction cup support rod has a plurality of suction cups that transfer the outer packaging stickers to the annular tray at equal intervals along its extension direction.

[0013] Preferably, the paper bowl turret mechanism is equipped with a discharge mechanism, which is located between the paper bowl feeding mechanism and the push-out pasting mechanism along the direction of paper bowl transmission. The discharge mechanism is provided with a negative pressure suction channel for sucking in the packaged paper bowl, and the negative pressure suction channel has a suction port that is coaxial with the conical membrane.

[0014] The present invention achieves the following technical effects compared to the prior art:

[0015] First, a clamping station and an outer packaging sticker pushing station are sequentially set along the paper bowl's movement path. After the paper bowl is in place, the clamping mechanism directly clamps the outer packaging sticker onto the outer wall of the paper bowl. This eliminates the need for pre-forming the outer packaging sticker and then aligning and installing it with the paper bowl, as is done in existing technologies. This reduces process steps and improves the efficiency of paper bowl preparation. Furthermore, quick-drying adhesive is sprayed at the splicing edges of the outer packaging sticker, allowing it to quickly overlap, adhere, and fix at the splicing edges after clamping, ensuring the cylindrical structure of the outer packaging sticker. Additionally, slow-drying adhesive is sprayed in the bonding area in the middle of the splicing edges, causing the outer packaging sticker to adhere to the paper bowl, increasing the bonding strength and preventing the outer packaging sticker from easily detaching from the paper bowl later. The use of slow-drying adhesive also prevents the outer packaging sticker from quickly sticking and fixing to the paper bowl. After the clamping operation is completed, the outer packaging sticker is aligned with the outer labeling mechanism and the outer labeling pusher plate and pushed into place at the mouth of the paper bowl. This avoids leaving a white edge around the outer circumference of the paper bowl. Since there is a flange around the mouth of the paper bowl, if the outer packaging sticker is directly wrapped around the outer wall of the paper bowl using the clamping mechanism and quick-drying adhesive, a white edge may remain on the side of the flange near the bottom of the bowl due to the flange obstruction, meaning the outer packaging sticker is not fully covered. The outer labeling pusher plate can directly push the outer packaging sticker along the axial direction of the paper bowl while the slow-drying adhesive is not yet dry. It is also constrained by the structure of the paper bowl to move the outer packaging sticker stably and accurately into place. Overall, this improves the installation efficiency of the outer packaging sticker, thereby increasing production, and also avoids the situation where the outer packaging sticker is not fully covered, increasing the compressive strength.

[0016] Secondly, the clamping mechanism includes a clamping body located below the clamping station, and two arc-shaped clamping arms that, when snapped together, form a ring and clamp the outer packaging label. One end of the arc-shaped clamping arm is hinged to the clamping body, and the other end is provided with a telescopic mechanism for driving the arc-shaped clamping arm to clamp. A connecting rod is hinged between the telescopic mechanism and the arc-shaped clamping arm. After the outer packaging label moves to the clamping station, the telescopic mechanism pushes the connecting rod, which moves and drives the arc-shaped clamping arm to rotate around its hinge point, so that the two arc-shaped clamping arms clamp together and form a clamp on the outer packaging label, encircling it on the outer periphery of the paper bowl. This eliminates the need for the alignment and placement process in existing technologies, making it simple and effective.

[0017] Third, a pressing block for pressing the two splicing edges is movably installed along the radial direction of the paper bowl at the clamping station. The pressing block is located on the outer periphery of the outer packaging sticker and aligned with the two splicing edges after stacking. By setting the pressing block, after the outer packaging sticker is in place, the two splicing edges can be directly pressed together by the pressing block, ensuring that it is fixed by the quick-drying adhesive at the splicing edges, so that it can maintain the cylindrical structure and avoid the misalignment and deformation of the entire outer packaging sticker when it is moved later.

[0018] Fourth, the outer packaging is equipped with a ring-shaped tray that supports and transfers the outer packaging label circumferentially. The inner circumference of the ring-shaped tray has an intermittently rotating paper material turret mechanism. Along the circumference of the ring-shaped tray are sequentially arranged receiving stations, glue spraying stations, and clamping stations. The paper material turret mechanism has several outer packaging label grippers that rotate with it and intermittently stop the outer packaging label at the receiving, glue spraying, and clamping stations. The receiving station has a feeding mechanism that spreads the outer packaging label on it. The glue spraying station has a glue spraying mechanism with a first nozzle for applying fast-drying adhesive to the splicing edges and a second nozzle for spraying slow-drying adhesive to the bonding area. The first nozzle is movably positioned radially along the outer packaging label. On the glue spraying mechanism, the second nozzle is fixed to the glue spraying mechanism and corresponds to the bonding area. By setting an annular tray, the outer packaging sticker can be supported as it rotates circumferentially, avoiding different heights of different parts in the vertical direction, which would affect the clamping or accurate glue spraying. During use, the feeding mechanism places and spreads the outer packaging sticker on the receiving station, making it flat. Then, the outer packaging sticker is quickly clamped by the outer packaging sticker clamp and dragged along the annular tray to maintain its flatness. Finally, the first and second nozzles spray glue on different parts of the outer packaging sticker. The whole process is simple and effective. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall packaging equipment of the present invention and an enlarged view of the paper feeding rack;

[0021] Figure 2 This is a top view of the overall packaging equipment of the present invention;

[0022] Figure 3 This is a side view of the overall packaging equipment of the present invention and an enlarged view of the push-out pasting mechanism;

[0023] Figure 4 These are the front view and isometric view of the clamping mechanism of the present invention when it is open;

[0024] Figure 5 These are the front view and isometric view of the clamping mechanism of the present invention when it is closed;

[0025] Figure 6 This is a cross-sectional view of the paper bowl feeding mechanism of the present invention;

[0026] Among them, 1-paper feeding rack, 2-outer packaging stacking, 3-discharge rack, 4-embossing mechanism, 5-paper material turret mechanism, 6-first glue spraying section, 7-second glue spraying section, 8-ring tray, 9-clamping mechanism, 10-paper bowl turret mechanism, 11-paper bowl pushing mechanism, 12-paper bowl pusher plate, 13-suction cup support rod, 14-suction cup, 15-paper bowl feeding mechanism, 16-discharge mechanism, 17-bowl collecting mechanism, 18-conical film, 19-outer packaging pushing mechanism, 20-outer packaging pusher plate, 21-arc clamping arm, 22-clamping body, 23-connecting rod, 24-clamping plate, 25-clamping plate driver, 26-telescopic mechanism, 27-guide channel, 28-air blowing mechanism. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] The purpose of this invention is to provide a packaging device for paper bowls to solve the problems existing in the prior art. The device uses a clamping mechanism to directly wrap the outer packaging sticker onto the paper bowl, which improves the production efficiency. The outer packaging sticker and the paper bowl are adhered together by a slow-drying adhesive. Before it dries, the outer packaging sticker is pushed into place by an outer sticker pusher plate, which avoids white edges at the mouth of the paper bowl and increases the compressive strength.

[0029] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] like Figures 1 to 6 As shown, this embodiment provides a packaging device for a paper bowl, including a clamping station and an outer packaging sticker pushing station arranged sequentially along the paper bowl's movement path. The clamping station is provided with a clamping mechanism 9 that clamps the outer packaging sticker onto the outer peripheral wall of the paper bowl. The outer packaging sticker has splicing edges coated with quick-drying adhesive on both sides along its circumferential direction. Preferably, the quick-drying adhesive is a hot melt adhesive or the like. The two splicing edges are gathered together and stacked together with the clamping mechanism 9. An adhesive area coated with slow-drying adhesive is provided at the middle position of the two splicing edges. Preferably, the slow-drying adhesive is a water-based adhesive or the like. The adhesive area is gathered together and pasted onto the outer peripheral wall of the paper bowl with the clamping mechanism 9. The outer packaging sticker pushing station is provided with an outer packaging sticker pushing mechanism 19. The outer packaging sticker pushing mechanism 19 is provided with an outer packaging sticker pushing plate 20 for pushing the outer packaging sticker to the mouth of the paper bowl. The outer packaging sticker pushing plate 20 is located on the bottom side of the paper bowl along the paper bowl's axial direction and is movable along the paper bowl's axial direction. The preferred external application mechanism 19 is equipped with a drive motor, and the drive motor is equipped with a linearly telescopic drive rod, on which the external application push plate 20 is mounted.

[0031] A clamping station and an outer packaging sticker pushing station are sequentially set along the paper bowl's moving path. After the paper bowl moves into position, the clamping mechanism 9 directly clamps the outer packaging sticker onto the outer wall of the paper bowl. This eliminates the need for pre-forming the outer packaging sticker and then aligning and installing it with the paper bowl, reducing process steps and improving the efficiency of paper bowl preparation. Furthermore, quick-drying adhesive is sprayed at the splicing edges of the outer packaging sticker, allowing it to quickly overlap, adhere, and fix after clamping, ensuring the cylindrical structure of the outer packaging sticker. Additionally, slow-drying adhesive is sprayed in the bonding area in the middle of the splicing edges, causing the outer packaging sticker to adhere to the paper bowl, increasing the bonding strength and preventing the outer packaging sticker from easily detaching from the paper bowl later. The use of slow-drying adhesive also prevents the outer packaging sticker from quickly sticking to the paper bowl. After the clamping operation is completed... The outer packaging sticker is aligned with the outer labeling mechanism 19 and the outer labeling pusher 20 and pushed into place at the mouth of the paper bowl. This avoids leaving a white edge around the outer edge of the paper bowl. Since there is a flange at the mouth of the paper bowl, if the outer packaging sticker is directly wrapped around the outer wall of the paper bowl using the clamping mechanism 9 and quick-drying adhesive, a white edge may remain on the side of the flange near the bottom of the bowl due to the flange obstruction. In other words, the outer packaging sticker is not fully wrapped. The outer labeling pusher 20 can directly push the outer packaging sticker along the axis of the paper bowl while the slow-drying adhesive is not dry. It is limited by the structure of the paper bowl to move the outer packaging sticker stably and accurately into place and into the flange. Overall, this can improve the installation efficiency of the outer packaging sticker, thereby increasing production, and can also avoid the situation where the outer packaging sticker is not fully wrapped, thus increasing the compressive strength.

[0032] In a preferred embodiment of the present invention, the clamping mechanism 9 includes a clamping body 22 located below the clamping station and two arc-shaped clamping arms 21 that, when snapped together, form a ring and clamp the outer packaging label. One end of the arc-shaped clamping arm 21 is hinged to the clamping body 22, and the other end is provided with a telescopic mechanism 26 for driving the arc-shaped clamping arm 21 to clamp. A connecting rod 23 is hinged between the telescopic mechanism 26 and the arc-shaped clamping arm 21. After the outer packaging label moves to the clamping station, the telescopic mechanism 26 pushes the connecting rod 23, which moves and drives the arc-shaped clamping arm 21 to rotate around its hinge point, so that the two arc-shaped clamping arms 21 clamp together and form a clamp on the outer packaging label, encircling it on the outer peripheral wall of the paper bowl. This eliminates the need for the alignment and placement process in the prior art, making it simple and effective. It should be noted that the shape of the two arc-shaped clamping arms 21 after being engaged is suitable for the outer packaging label and the paper bowl's external structure, and is slightly larger than the paper bowl's structure, so that it can be precisely clamped onto the outer wall of the paper bowl. Preferably, the telescopic mechanism 26 can be replaced with a cam mechanism, which uses the cam mechanism to drive the connecting rod 23. Furthermore, depending on whether the paper bowl is a straight cylinder or a conical cylinder, the inner peripheral edge of the arc-shaped clamping arms 21 is adapted to fit the outer packaging label into a straight cylinder or conical cylinder structure. Moreover, the clamping action of the two arc-shaped clamping arms 21 has a certain time difference, so that after one outer packaging label's splicing edge is attached to the paper bowl, the other one is subsequently placed on top of it, thus completing the overlapping and bonding work of the two edges.

[0033] The clamping station is equipped with a pressing block that is movably positioned along the radial direction of the paper bowl for pressing the two splicing edges together. The pressing block is located on the outer periphery of the outer packaging sticker and aligned with the two splicing edges after stacking. By setting the pressing block, after the outer packaging sticker is in place, the two splicing edges can be directly pressed together by the pressing block, ensuring that it is fixed by the quick-drying adhesive at the splicing edges, so that it can maintain a cylindrical structure and avoid the misalignment and deformation of the entire outer packaging sticker when it is moved later. Preferably, the clamping station is equipped with a pressing block support, and the pressing block extends along the length direction of the seam of the outer packaging sticker. The pressing block is movably set on the pressing block support. When the paper bowl is moved into place, the outer packaging sticker claws open, the clamping mechanism 9 clamps it, and the pressing block moves and presses on the two splicing edges after stacking, completing the pressing work of the two.

[0034] Furthermore, the outer packaging is equipped with an annular tray 8 that supports and circumferentially transfers the outer packaging. The inner circumference of the annular tray 8 is equipped with a periodically rotating paper material turret mechanism 5. Along the circumference, the annular tray 8 has a receiving station, a glue spraying station, and a clamping station arranged sequentially. The paper material turret mechanism 5 has several outer packaging grippers that rotate with it and intermittently stop the outer packaging at the receiving station, glue spraying station, and clamping station. The receiving station has a feeding mechanism that spreads the outer packaging on it. The glue spraying station has a glue spraying mechanism, which has a first nozzle for applying fast-drying adhesive to the splicing edges and a second nozzle for spraying slow-drying adhesive to the bonding area. The first nozzle is radially movable along the outer packaging. The outer packaging sticker is placed on the glue spraying mechanism, and the second nozzle is fixed on the glue spraying mechanism and corresponds to the bonding area. By setting the annular tray 8, the outer packaging sticker can be supported during the circumferential rotation, avoiding the difference in height of different parts in the vertical direction, which would affect the clamping or accurate glue spraying. During use, the feeding mechanism places and spreads the outer packaging sticker on the receiving station. The sticker is flat, and then the outer packaging sticker is quickly clamped by the outer packaging sticker claw. The outer packaging sticker is then dragged along the annular tray 8 to maintain its flatness. Then, the first and second nozzles are used to spray glue on different parts of the outer packaging sticker. The whole process is simple and effective.

[0035] The preferred outer packaging sticker, held by the outer packaging sticker grippers on the paper material turret mechanism 5, rotates along the annular tray 8. Both the first and second nozzles are located above the annular tray 8. When the outer packaging sticker rotates to the first nozzle, it stops. The first nozzle then begins to move and spray adhesive on its splicing edges. After the adhesive spraying is completed, the outer packaging sticker continues to rotate with the paper material turret mechanism 5. When it moves to the second nozzle, the second nozzle begins to spray adhesive. The outer packaging sticker continues to rotate with the treatment turret mechanism until it passes the second nozzle and then stops spraying adhesive, forming an arc-shaped adhesive strip on the outer packaging sticker. The start and end signals of the entire adhesive spraying process are output by an angle encoder and are electrically connected to the drive mechanisms of the first and second nozzles.

[0036] Furthermore, the adhesive spraying mechanism includes a first adhesive spraying section 6 and a second adhesive spraying section 7 spaced apart along the outer packaging paper conveying direction. A first nozzle is movably mounted on the first adhesive spraying section 6 along the radial direction of the outer packaging paper and corresponds to the splicing edge of the outer packaging paper. A second nozzle is mounted on the second adhesive spraying section 7 and corresponds radially to the center position of the outer packaging paper. The first adhesive spraying section 6 is provided with a first storage tank connected to the first nozzle. The first storage tank is filled with quick-drying adhesive, and the first storage tank is provided with a pushing mechanism to spray the quick-drying adhesive from the first nozzle.

[0037] Furthermore, the preferred paper turret mechanism 5 is equipped with a gripper support seat. The outer packaging gripper includes a base plate and a clamping plate 24 rotatably connected to the base plate. The base plate is mounted on the gripper support seat, and a clamping plate driver 25 is provided on one side to drive the clamping plate 24 to open or close. The rotating shaft of the clamping plate 24 extends horizontally. When it is closed with the base plate, it clamps the outer packaging. When it is opened upwards, it creates space, which facilitates the feeding mechanism to spread the outer packaging on the base plate and the annular tray 8, and also facilitates the clamping mechanism 9 to directly hug the outer packaging upwards.

[0038] Furthermore, the annular tray 8 is provided with a paper bowl turret mechanism 10 on one side along the horizontal direction. The paper bowl turret mechanism 10 is provided with a rotating frame that rotates intermittently. Preferably, both the rotating frame and the paper material turret mechanism 5 rotate intermittently. They can adopt a cam-type intermittent motion mechanism, a ratchet mechanism, or a Geneva mechanism, etc. Specifically, the cam-type intermittent motion mechanism consists of a driving wheel and a driven disc. The driving cam rotates continuously and pushes the driven disc to perform the expected intermittent indexing motion through its cam profile. The ratchet mechanism consists of a rocker arm, a pawl, a ratchet, and a stop pawl, which can realize intermittent motion. The Geneva mechanism consists of a driving dial, a driven Geneva wheel, and a frame. The rotating frame is provided with several conical membranes 18 for paper bowls to be fastened and positioned. The outer shape of the conical membranes 18 is adapted to the inner cylinder structure of the paper bowls. The conical membranes 18 rotate with the rotating frame and stop intermittently at the clamping station and the pushing and pasting station.

[0039] Furthermore, a paper bowl feeding mechanism 15 is provided on the side of the paper bowl turret mechanism 10 away from the annular tray 8. The paper bowl feeding mechanism 15 is provided with a guide channel 27 for the directional movement of the paper bowl. Preferably, the guide channel 27 is a straight tubular structure. One end of the guide channel 27 is provided with a discharge port that is coaxially connected with the cone membrane 18. The other end of the guide channel 27 is provided with an air blowing mechanism 28 that blows the paper bowl and fastens it to the cone membrane 18. After the paper bowl is conveyed to the guide channel 27 by the paper bowl feeding mechanism 15, it is blown by the air blowing mechanism 28 and pushed to detach from the guide channel 27 and fasten to the cone membrane 18.

[0040] Furthermore, the rotating frame is equipped with a paper bowl pushing mechanism 11. The paper bowl pushing mechanism 11 is located between the discharge port and the clamping part along the paper bowl conveying direction. The paper bowl pushing mechanism 11 is provided with a paper bowl pushing plate 12 for pushing the paper bowl into place. The paper bowl pushing plate 12 is arranged to move radially along the paper bowl. After the paper bowl is fastened to the conical membrane 18 by the air blowing mechanism 28, the conical membrane 18 moves intermittently to the paper bowl pushing position. The paper bowl pushing plate 12 extends out and abuts against the bottom of the paper bowl, so that the paper bowl that is not fastened to the conical membrane 18 can be fastened to the paper bowl under the pushing action of the paper bowl pushing plate 12, that is, the paper bowl that is coaxial with the conical membrane 18 is straightened and made coaxial with the conical membrane 18.

[0041] In a preferred embodiment of the present invention, the annular tray 8 is equipped with an embossing mechanism 4. The annular tray 8 has a cavity for accommodating the embossing mechanism 4. The cavity is located between the glue spraying station and the material receiving station along the outer packaging label conveying direction. The embossing mechanism 4 is equipped with an upper die head and a lower die head that press on both sides of the outer packaging label. The upper die head and / or the lower die head are respectively provided with embossing patterns on their respective surfaces. After the outer packaging label is clamped into place by the outer packaging label clamping claw, it is moved to the embossing station. When it is necessary to emboss the outer packaging label with a corresponding pattern, the upper die head and the lower die head are closed, and the embossing patterns on both are used to emboss the outer packaging label. Preferably, when it is necessary to emboss other patterns, the corresponding upper die head and the lower die head are replaced.

[0042] Furthermore, the feeding mechanism includes a paper feeder 1, on which outer packaging labels are stacked to form a horizontally extending stack 2 of outer packaging labels. The discharge end of the paper feeder 1 is rotatably equipped with a discharge rack 3. The discharge rack 3 is rotatably equipped with several suction cup support rods 13 at equal intervals along its circumference. Each suction cup support rod 13 is equipped with several suction cups 14 at equal intervals along its extension direction to transfer the outer packaging labels to the annular tray 8. When it is necessary to place the outer packaging labels on the annular tray 8, the discharge end of the paper feeder 1 rotates the suction cup support rod 13, and the suction cups 14 on the suction cup support rod 13 adsorb the outer packaging labels. Then, the suction cup support rod 13 carries the outer packaging labels and rotates circumferentially until the outer packaging labels are placed on the annular tray 8. After that, the suction cups 14 release the outer packaging labels. The suction cup support rod 13 is equipped with a negative pressure suction tube, and each negative pressure suction tube is connected to each suction cup 14 to provide negative pressure suction to the suction cup 14.

[0043] Furthermore, the paper bowl turret mechanism 10 is equipped with a discharge mechanism 16. The discharge mechanism 16 is located between the paper bowl feeding mechanism 15 and the outer labeling mechanism 19 along the direction of paper bowl transmission. The discharge mechanism 16 is provided with a negative pressure suction channel for sucking in the packaged paper bowl. The negative pressure suction channel has a suction port that is coaxial with the cone membrane 18. After the outer packaging is attached to the paper bowl, the paper bowl is rotated to the discharge position using the rotating frame. After the suction port is aligned with the cone membrane 18, the negative pressure suction channel generates negative pressure and adsorbs the paper bowl, detaching the paper bowl from the cone membrane 18. Then, it is sent out through the conveying pipe to the collection mechanism 17 for boxing.

[0044] Any adaptive changes made according to actual needs are within the scope of protection of this invention.

[0045] It should be noted that, for those skilled in the art, it is obvious that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0046] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A packaging device for paper bowls, characterized in that, The device includes a clamping station and an outer packaging sticker pushing station arranged sequentially along the moving path of the paper bowl. The clamping station is equipped with a clamping mechanism that clamps the outer packaging sticker onto the outer peripheral wall of the paper bowl. The outer packaging sticker has splicing edges coated with quick-drying adhesive on both sides along its circumferential direction. The two splicing edges are brought together and overlapped together by the clamping mechanism. At the middle position of the two splicing edges is an adhesive area coated with slow-drying adhesive. The adhesive area is brought together and pasted onto the outer peripheral wall of the paper bowl by the clamping mechanism. The outer packaging sticker pushing station is equipped with an outer packaging sticker pushing mechanism. The outer packaging sticker pushing mechanism is equipped with an outer packaging sticker pushing plate for pushing the outer packaging sticker to the rim of the paper bowl. The outer packaging sticker pushing plate is located on the bottom side of the paper bowl along the axial direction of the paper bowl and is movable along the axial direction of the paper bowl.

2. The packaging equipment for paper bowls according to claim 1, characterized in that, The clamping mechanism includes a clamping body located below the clamping station, two arc-shaped clamping arms that, when snapped together, form a ring and clamp the outer packaging sticker. One end of the arc-shaped clamping arm is hinged to the clamping body, and the other end is provided with a telescopic mechanism for driving the arc-shaped clamping arm to clamp. A connecting rod is hinged between the telescopic mechanism and the arc-shaped clamping arm.

3. The packaging equipment for paper bowls according to claim 2, characterized in that, The clamping station is provided with a pressing block that is movably positioned along the radial direction of the paper bowl for pressing the two splicing edges together. The pressing block is located on the outer periphery of the outer packaging sticker and aligned with the two splicing edges after stacking.

4. The packaging equipment for paper bowls according to any one of claims 1 to 3, characterized in that, The outer packaging sticker is equipped with an annular tray that supports and transfers it circumferentially. The inner circumference of the annular tray has an intermittently rotating paper material turret mechanism. The annular tray has a receiving station, a glue spraying station, and a clamping station arranged sequentially along its circumference. The paper material turret mechanism has several outer packaging sticker grippers that rotate with it and intermittently stop the outer packaging sticker at the receiving station, the glue spraying station, and the clamping station. The receiving station has a feeding mechanism that spreads the outer packaging sticker on it. The glue spraying station has a glue spraying mechanism with a first nozzle for applying fast-drying adhesive to the splicing edges and a second nozzle for spraying slow-drying adhesive to the bonding area. The first nozzle is movably mounted on the glue spraying mechanism along the radial direction of the outer packaging sticker, and the second nozzle is fixed on the glue spraying mechanism and corresponds to the bonding area.

5. The packaging equipment for paper bowls according to claim 4, characterized in that, The annular tray has a paper bowl turret mechanism on one side along the horizontal direction. The paper bowl turret mechanism has an intermittently rotating frame. The rotating frame has several conical membranes for the paper bowls to be fastened and positioned. The conical membranes rotate with the rotating frame and intermittently stop at the clamping station and the pushing and pasting station.

6. The packaging equipment for paper bowls according to claim 5, characterized in that, The paper bowl turret mechanism has a paper bowl feeding mechanism on the side away from the annular tray. The paper bowl feeding mechanism has a guide channel for the directional movement of the paper bowl. One end of the guide channel has a discharge port that is coaxially connected to the conical membrane. The other end of the guide channel has an air blowing mechanism that blows the paper bowl and fastens it to the conical membrane.

7. The packaging equipment for paper bowls according to claim 6, characterized in that, The rotating frame is equipped with a paper bowl pushing mechanism, which is located between the discharge port and the clamping part along the paper bowl conveying direction. The paper bowl pushing mechanism is provided with a paper bowl pushing plate for pushing the paper bowl into place, and the paper bowl pushing plate is arranged to move radially along the paper bowl.

8. The packaging equipment for paper bowls according to claim 7, characterized in that, The annular tray is equipped with an embossing mechanism. The annular tray has a blank space for accommodating the embossing mechanism. The blank space is located between the glue spraying station and the material receiving station along the outer packaging label conveying direction. The embossing mechanism has an upper die head and a lower die head that press on both sides of the outer packaging label. The upper die head and / or the lower die head have embossing patterns on their respective surfaces close to each other.

9. The packaging equipment for paper bowls according to claim 8, characterized in that, The feeding mechanism includes a paper feeding frame, on which the outer packaging stickers are stacked. The paper feeding frame has a rotating discharge frame at its discharge end. The discharge frame has a plurality of suction cup support rods that rotate at equal intervals along its circumference. Each suction cup support rod has a plurality of suction cups that transfer the outer packaging stickers to the annular tray at equal intervals along its extension direction.

10. The packaging equipment for paper bowls according to claim 9, characterized in that, The paper bowl turret mechanism is equipped with a discharge mechanism. The discharge mechanism is located between the paper bowl feeding mechanism and the push-out pasting mechanism along the direction of paper bowl transmission. The discharge mechanism is provided with a negative pressure suction channel for sucking in the packaged paper bowl. The negative pressure suction channel has a suction port that is coaxial with the conical membrane.

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