A paper bowl production bonding mechanism

Abstract

This utility model discloses a paper bowl production bonding mechanism, including a machine body. A support frame is installed on the upper part of the machine body, and a cylinder is installed on the lower part of the support frame. An ultrasonic generator is installed at the output end of the cylinder, and an ultrasonic welding head is installed at the output end of the ultrasonic generator. A turntable is rotatably installed on the upper surface of the machine body corresponding to the ultrasonic welding head. Several sets of placement slots are formed on the upper part of the turntable, and the several sets of placement slots are equidistantly distributed in a ring along the circumference of the turntable. A fixing frame for fixing paper bowls is magnetically installed inside each set of placement slots. An electromagnet is embedded in the lower part of each set of placement slots, and a magnetic plate is embedded in the bottom of each set of fixing frames corresponding to the electromagnet. Through the magnetic attraction between the electromagnet and the magnetic plate, the fixing frame can be quickly replaced. This avoids the cumbersome disassembly and adjustment process of traditional methods, greatly shortens the equipment changeover time, and effectively improves production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of paper bowl processing technology, specifically to a paper bowl production bonding mechanism. Background Technology

[0002] Paper bowl production is an industrialized manufacturing process. First, food-grade base paper is prepared, with some of it coated with food-grade polyethylene film or paraffin wax to enhance its waterproof and oil-proof properties. Then, brand logos and other information are printed using flexographic and gravure printing techniques. Next, the paper is cut into bowl pieces using a die-cutting machine and fold lines are pressed. Finally, the bowls are formed into a sturdy structure through processes such as edge rolling and gluing on a forming machine.

[0003] According to the authorization announcement number CN 220297943 U, an ultrasonic bonding mechanism for paper bowls is disclosed, including a frame, a support, a cylinder, and an ultrasonic welder. The support is fixedly connected to the top wall of the frame, the cylinder is fixedly connected to the bottom wall of the support, and the ultrasonic welder is fixedly connected to the bottom wall of the cylinder. A turntable is rotatably connected to the top wall of the frame, and several equally spaced mounting brackets are movably connected to the top wall of the turntable. A first gear is fixedly connected to the bottom wall of the turntable and rotatably connected to the bottom wall of the frame. A motor is fixedly connected to the top wall of the base plate, and an incomplete gear is fixedly connected to the output end of the motor. The first gear and the incomplete gear mesh.

[0004] The aforementioned patent cannot quickly replace the paper bowl holder during use. When a new paper bowl model needs to be produced, the equipment needs to be shut down for a long time for replacement, which leads to a reduction in equipment production efficiency. Therefore, a paper bowl production bonding mechanism is needed. Utility Model Content

[0005] The purpose of this invention is to provide a paper bowl production bonding mechanism.

[0006] The technical problem solved by this utility model is that the traditional paper bowl fixing method is relatively complicated, which makes the operation cumbersome and time-consuming when changing different types of paper bowls, affecting the rapid switching of the production line and the overall efficiency.

[0007] This utility model can be achieved through the following technical solutions:

[0008] A paper bowl production bonding mechanism includes a machine body, a support frame mounted on the upper part of the machine body, a cylinder mounted on the lower part of the support frame, an ultrasonic generator mounted on the output end of the cylinder, and an ultrasonic welding head mounted on the output end of the ultrasonic generator.

[0009] The upper surface of the machine body is equipped with a turntable that rotates to correspond to the ultrasonic welding head. Several sets of placement slots are provided on the upper part of the turntable. The several sets of placement slots are distributed in a ring at equal intervals along the circumference of the turntable. A fixing frame for fixing the paper bowl is magnetically installed inside the placement slot. An electromagnet is embedded in the lower part of the placement slot. A magnetic plate is embedded in the bottom of the fixing frame corresponding to the electromagnet. The electromagnet and the corresponding magnetic plate are magnetically connected.

[0010] Preferably, each set of placement slots has an annular groove at the bottom, and each set of electromagnets is installed inside the corresponding annular groove. Several sets of electromagnets are connected to an external controller through circuits.

[0011] Preferably, the bottom of each set of placement slots is provided with a positioning slot in the middle of the annular slot, and the bottom of each set of fixing brackets is provided with a positioning pin corresponding to the positioning slot. The positioning pins of each set are inserted and installed inside the corresponding positioning slot.

[0012] Preferably, the body has an internal cavity, and a partition is installed inside the cavity.

[0013] Preferably, a drive motor is mounted on the upper surface of the partition, and a drive gear is key-connected to the output end of the drive motor.

[0014] Preferably, a driven gear is meshed with the side of the drive gear, a rotating rod is installed through the middle of the driven gear, and the top end of the rotating rod passes through the top of the machine body and connects to the bottom of the turntable.

[0015] Preferably, a U-shaped frame is installed on the upper surface inside the cavity, a bearing is embedded in the upper surface of the U-shaped frame, and the bottom of the rotating rod is installed in the middle of the bearing.

[0016] A further technical improvement of this invention lies in the inclusion of an electromagnetic quick-release structure between the mounting bracket and the placement slot. The mounting bracket is quickly assembled and disassembled through the magnetic attraction between the electromagnet and the magnetic plate. When the mounting bracket needs to be replaced, simply disconnecting the power will release the magnetic lock; after replacing it with a new bracket, power will automatically connect it for secure attachment, significantly improving replacement efficiency.

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

[0018] When the paper bowl holder needs to be replaced, the operator cuts off the power to the electromagnet via an external controller. At this point, the electromagnet's magnetic force disappears, and the operator can directly remove the old holder from the slot. For replacement, the new holder of the corresponding model is aligned with the slot and inserted. The controller then energizes the electromagnet, and the magnetic force it generates attracts the magnetic plate at the bottom of the holder, causing it to move downwards, thus completing the quick installation. The magnetic attraction between the electromagnet and the magnetic plate enables rapid holder replacement. When producing different models of paper bowls, switching holders requires only simple operations, avoiding the cumbersome disassembly and adjustment process of traditional methods, significantly shortening equipment changeover time and effectively improving production efficiency. Attached Figure Description

[0019] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0021] Figure 2 This is a schematic diagram showing the internal structure of the placement slot of this utility model.

[0022] Figure 3 This is a schematic diagram showing the disassembled installation structure of the positioning pin of this utility model;

[0023] Figure 4 This is a schematic diagram of the internal structure of the cavity in this utility model;

[0024] Figure 5 This is a schematic diagram of the upper structure of the U-shaped frame of this utility model.

[0025] In the diagram: 1. Body; 2. Support frame; 3. Cylinder; 4. Ultrasonic generator; 5. Ultrasonic welding head; 6. Turntable; 7. Placement slot; 8. Fixing frame; 9. Annular groove; 10. Electromagnet; 11. Magnetic guide plate; 13. Positioning slot; 14. Positioning pin; 15. Cavity; 16. Partition plate; 17. Drive motor; 18. Drive gear; 19. Driven gear; 20. Rotating rod; 21. U-shaped frame; 22. Bearing. Detailed Implementation

[0026] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0027] Please see Figure 1-5As shown, a paper bowl production bonding mechanism includes a machine body 1, a support frame 2 installed on the upper part of the machine body 1, a cylinder 3 installed on the lower part of the support frame 2, an ultrasonic generator 4 installed at the output end of the cylinder 3, and an ultrasonic welding head 5 installed at the output end of the ultrasonic generator 4. The cylinder 3 is installed at the lower part of the support frame 2 and can precisely control the movement of the ultrasonic generator 4 and the ultrasonic welding head 5. It can flexibly adjust the position and downward pressure of the welding head according to the actual needs of paper bowl production to ensure accurate welding position and adapt to paper bowl raw materials of different thicknesses and materials, ensuring the stability of welding quality. The ultrasonic welding head 5 is installed at the output end of the ultrasonic generator 4 and can concentrate the ultrasonic energy to the welding part of the paper bowl to achieve precise welding.

[0028] Cylinder 3 uses SMC's CDQ2B32-50D, whose 32mm cylinder diameter can provide a downward pressure of about 200N to meet the welding requirements of paper bowls; the 50mm stroke is compatible with paper bowl molds of different heights, and the 0.5MPa air pressure is compatible with the general factory air source standard.

[0029] The ultrasonic generator 4 has a frequency of 20kHz±0.5kHz. 20kHz is the golden frequency for ultrasonic welding of paper products, which can balance the penetration depth and the risk of material damage. The power is 1500W, which can meet the bonding needs of 3-5mm thick paper bowls, while avoiding excessive energy that could cause scorching. The amplitude range is 30-60μm, which can be adjusted to suit different coated papers.

[0030] A turntable 6 is rotatably mounted on the upper surface of the machine body 1, corresponding to the ultrasonic welding head 5. Several sets of placement slots 7 are provided on the upper part of the turntable 6. The placement slots 7 are distributed in a ring at equal intervals along the circumference of the turntable 6. A fixing frame 8 for fixing paper bowls is magnetically installed inside each placement slot 7. An electromagnet 10 is embedded in the lower part of each placement slot 7. A magnetic plate 11 is embedded in the bottom of each fixing frame 8 corresponding to the electromagnet 10. Each set of electromagnets 10 is magnetically connected to the corresponding magnetic plate 11. The turntable 6 is rotatably mounted on the upper surface of the machine body 1 and corresponds to the ultrasonic welding head 5. By rotating continuously, the paper bowls placed in the placement slots 7 can be sent to the ultrasonic welding head 5 for welding in sequence. There is no need for manual frequent placement and removal of paper bowls, realizing continuous operation of paper bowl production and greatly improving production efficiency. The fixing frame 8 for fixing paper bowls is fixed by the magnetic connection between the electromagnet 10 and the magnetic plate 11, making the operation of placing and removing paper bowls simple and quick. Simply controlling the on / off state of the electromagnet 10 allows the fixing frame 8 to be attracted and released. Compared to traditional mechanical clamping devices, this eliminates the need for complex operating procedures and additional manpower, improving the efficiency of clamping and disassembling the paper bowl. Moreover, the magnetic fixing method provides a stable fixing force, ensuring that the paper bowl will not shake or shift during the welding process, thus guaranteeing the accuracy and consistency of the welding.

[0031] Electromagnet 10 is a DC holding electromagnet with a rated voltage of 24VDC to avoid high voltage risks. The holding force is 50N, which can resist the centrifugal force when the turntable rotates.

[0032] Preferably, each set of placement slots 7 has an annular groove 9 at its bottom. Each set of electromagnets 10 is installed inside the corresponding annular groove 9. Several sets of electromagnets 10 are connected to an external controller via wiring. The annular groove 9 provides a dedicated installation position for the electromagnets 10, embedding them within it. This protects the electromagnets from external interference and damage, such as preventing them from being bumped by paper bowl materials or other components during production, thereby extending their service life and ensuring their performance stability. The connection of several sets of electromagnets 10 to the external controller facilitates centralized control and management. The external controller can precisely control the on / off state and magnetic field strength of each electromagnet 10 according to production needs, achieving precise control of the adsorption and release actions of the fixing frame 8.

[0033] The external controller uses a Siemens S7-1200 PLC, whose scanning cycle can be accurate to the millisecond level. It can strictly synchronize the on / off timing of the electromagnet 10, the triggering timing of the ultrasonic generator 4, and the indexing start and stop of the servo motor.

[0034] Furthermore, each set of placement slots 7 has a positioning slot 13 at the bottom of the annular slot 9. Each set of fixing brackets 8 has a positioning pin 14 installed at the bottom corresponding to the positioning slot 13. Each set of positioning pins 14 is inserted into the corresponding positioning slot 13. After the positioning pins 14 are inserted into the positioning slot 13, they can restrict the movement and rotation of the fixing bracket 8 in the horizontal direction. Combined with the magnetic connection of the electromagnet 10 and the magnetic plate 11, the fixing bracket 8 is constrained from multiple directions, which further enhances the stability of the fixing bracket 8 and the paper bowl it is fixed with. This allows it to withstand a certain amount of external force without displacement during the rotation of the turntable and welding process, which helps to improve the welding success rate and the yield rate of the product.

[0035] Furthermore, the machine body 1 has an internal cavity 15, and a partition 16 is installed inside the cavity 15. The design of the cavity 15 provides additional space inside the machine body, which can be used to install various components, such as drive motors, gears, etc., making the structure of the equipment more compact and effectively saving external space. At the same time, it is also convenient to make reasonable layout and planning of the internal components of the equipment. The partition 16 can enhance the overall structural strength and stability of the machine body 1, and facilitate the stable operation of the drive motor 17.

[0036] It is worth noting that a drive motor 17 is mounted on the upper surface of the partition 16. A drive gear 18 is keyed to the output end of the drive motor 17. The drive motor 17 is mounted on the partition 16 in a relatively fixed position, providing a stable power source for the drive gear 18. The keyed connection ensures efficient and reliable power transmission between the output shaft of the drive motor 17 and the drive gear 18, reducing slippage during power transmission and guaranteeing the stability and accuracy of power transmission, which is beneficial for the stable operation of the equipment.

[0037] The drive motor 17 adopts the Yaskawa Σ-7 series servo motor with a rated power of 400W and a rated speed of 3000rpm. It is equipped with a reducer with a speed ratio of 10:1 and a positioning accuracy of ±0.1°, which can ensure accurate indexing of the turntable. After reduction, the output speed is 5rpm, which matches the production cycle.

[0038] Specifically, a driven gear 19 is meshed with the side of the drive gear 18. A rotating rod 20 is installed through the middle of the driven gear 19, and the top of the rotating rod 20 passes through the top of the machine body 1 and connects to the bottom of the turntable 6. The meshing transmission between the drive gear 18 and the driven gear 19 ensures the accuracy of the transmission ratio, thereby enabling the turntable 6 to rotate at a precise speed and angle. This is crucial for the precise position control required in the paper bowl production process, such as ensuring that the paper bowl is in the correct position during ultrasonic welding, which helps improve product consistency and quality stability. At the same time, the connection between the rotating rod 20, the driven gear 19, and the turntable 6 provides stable support for the turntable 6, keeping it smooth during rotation and reducing wobbling and deviation.

[0039] More specifically, a U-shaped frame 21 is installed on the upper surface inside the cavity 15. A bearing 22 is embedded in the upper surface of the U-shaped frame 21. The bottom of the rotating rod 20 is installed in the middle of the bearing 22. The bearing 22 provides a stable support point for the rotating rod 20, which can reduce the radial and axial wobble of the rotating rod 20 during rotation, making the rotation of the turntable 6 more stable. This helps to ensure the positional accuracy of the paper bowls during the production process, avoids the positioning deviation of the paper bowls caused by unstable rotation, and improves product quality. At the same time, the presence of the bearing 22 can greatly reduce the frictional resistance between the rotating rod 20 and the U-shaped frame 21, and extend the service life of various components of the equipment.

[0040] In use, the operator first places the paper bowl blanks to be processed in the fixing frame, where they are stably fixed by the magnetic attraction between the electromagnet and the magnetic plate. After starting the equipment, the drive motor drives the turntable to rotate via a gear set, sequentially conveying the fixed paper bowls to the area below the ultrasonic welding head. The cylinder pushes the ultrasonic generator and welding head downwards, and the high-frequency vibration causes the joint of the paper bowls to fuse instantly, completing the bonding operation. When it is necessary to change to a different model of paper bowl fixing frame, simply disconnecting the electromagnet power supply releases the magnetic fixation, allowing for quick replacement of the corresponding model fixing frame. Upon power-up, the frame automatically resets and locks, enabling efficient production switching.

[0041] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A paper bowl production bonding mechanism characterized by: Includes a body (1), a support frame (2) is installed on the upper part of the body (1), a cylinder (3) is installed on the lower part of the support frame (2), an ultrasonic generator (4) is installed at the output end of the cylinder (3), and an ultrasonic welding head (5) is installed at the output end of the ultrasonic generator (4). The upper surface of the body (1) is fitted with a turntable (6) corresponding to the ultrasonic welding head (5). The upper part of the turntable (6) is provided with several sets of placement slots (7). The several sets of placement slots (7) are distributed in a ring at equal intervals along the circumference of the turntable (6). Each set of placement slots (7) is magnetically fitted with a fixing frame (8) for fixing paper bowls. Each set of placement slots (7) is embedded with an electromagnet (10) at the bottom. The bottom of each set of fixing frames (8) is embedded with a magnetic plate (11) corresponding to the electromagnet (10). Each set of electromagnets (10) is magnetically connected to the corresponding magnetic plate (11).

2. A paper bowl production bonding mechanism according to claim 1, wherein Each set of placement slots (7) has an annular slot (9) at the bottom, and each set of electromagnets (10) is installed inside the corresponding annular slot (9). Several sets of electromagnets (10) are connected to an external controller through lines.

3. A paper bowl production bonding mechanism according to claim 1, wherein The bottom of each set of placement slots (7) is provided with a positioning slot (13) in the middle of the annular slot (9). The bottom of each set of fixing brackets (8) is provided with a positioning pin (14) corresponding to the positioning slot (13). The positioning pin (14) of each set is inserted into the interior of the corresponding positioning slot (13).

4. A paper bowl production bonding mechanism according to claim 1, wherein The body (1) has a cavity (15) inside, and a partition (16) is installed inside the cavity (15).

5. A paper bowl production bonding mechanism according to claim 4, wherein A drive motor (17) is mounted on the upper surface of the partition (16), and a drive gear (18) is key-connected to the output end of the drive motor (17).

6. A paper bowl production bonding mechanism according to claim 5, wherein A driven gear (19) is meshed with the side of the drive gear (18), and a rotating rod (20) is installed through the middle of the driven gear (19). The top of the rotating rod (20) passes through the top of the machine body (1) and is connected to the bottom of the turntable (6).

7. A paper bowl production bonding mechanism according to claim 6, wherein A U-shaped frame (21) is installed on the upper surface inside the cavity (15), and a bearing (22) is embedded in the upper surface of the U-shaped frame (21). The bottom of the rotating rod (20) is installed in the middle of the bearing (22).

Images