Ultrasonic bottom bonding device for paper cups

Abstract

The utility model discloses a paper cup ultrasonic wave bottom bonding device which comprises a working table, two symmetrical leveling mechanisms are installed on the working face of the working table, a cavity is formed in the working table, two sets of symmetrical sliding grooves are formed in the inner bottom wall of the cavity, and the two sets of symmetrical sliding grooves are arranged in the working table. Linkage grooves symmetrical to the sliding grooves are formed in the working face of the workbench, matched sliding blocks are clamped into the sliding grooves in each set, and every two sliding blocks located on the same side are connected through a linkage rod; through conveying wind power, the air outlet pipes apply pressure to the two ends of a paper cup raw material through wind power, the two ends are prevented from being rolled, the suspension height of the bent position of the limiting shell can be increased, the two ends of the paper cup can be made to be smooth and not rolled under the condition that normal conveying is not blocked, and follow-up bonding operation is not affected; and meanwhile, the distance between the two leveling mechanisms can be adjusted according to paper cup raw materials of different sizes, and better adaptability is achieved.

Description

Technical Field

[0001] The utility model belongs to the field of paper cup processing equipment, and more specifically, relates to an ultrasonic bottom bonding device for paper cups. Background Art

[0002] During the processing of paper cups, the cup body needs to be formed first, and then the cup bottom is bonded to the bottom of the cup body to complete the production of the cup. When forming the cup body, the paper cup raw material is rolled into a tube by a cup body forming mechanism, and then an ultrasonic bonding device is used to bond the cup body. The principle is to use the high-frequency vibration of ultrasonic waves to generate heat energy, causing the molecules on the material surface to rub against each other, thereby achieving the bonding of the materials.

[0003] Chinese Patent No. CN220562255U discloses an ultrasonic bonding device for a paper cup machine, which includes a workbench, an ultrasonic bonding device, and a cup body forming mechanism. The ultrasonic bonding device includes two support plates located on both sides of the cup body forming mechanism. A cross plate is fixed on the two support plates above the cup body forming mechanism. Two fixing plates are arranged on the cross plate. A driving shaft is arranged between the two fixing plates. An eccentric wheel is arranged at the center of the driving shaft. A transmission wheel is arranged on the eccentric wheel in a transmission cooperation manner. A connecting end is arranged at the bottom of the transmission wheel. A connecting block is hinged on the connecting end. An upper mounting plate is installed at the bottom of the connecting block. Lifting guide rods passing through to the lower side of the cross plate are arranged at the four corners of the bottom of the upper mounting plate. A lower mounting plate is installed at the bottom of the lifting guide rods. An ultrasonic welding head is fixed on the lower mounting plate.

[0004] The above technical solution has the following defects:

[0005] During the process of transporting the paper cup raw material to the bottom of the ultrasonic welding head, it is necessary to ensure the flatness of the paper cup raw material. Although the pressing plate in the above technical solution can limit the two ends of the paper cup raw material, if it is suspended too high, the paper cup raw material will be curled, and if it is suspended too low, it will affect the normal transportation and insertion operation of the paper cup raw material; at the same time, it cannot adapt to paper cups of different heights. The fixed pressing plate can only transport the paper cup raw material of a single size. Summary of the Utility Model

[0006] In view of the above defects, the utility model provides a paper cup ultrasonic bottom bonding device, which includes a workbench. Two symmetric leveling mechanisms are installed on the working surface of the workbench. A cavity is provided inside the workbench. Two groups of symmetric sliding grooves are provided on the inner bottom wall of the cavity. Linkage grooves symmetric to each sliding groove are provided on the working surface of the workbench. A slider adapted to each sliding groove is clamped inside each group of sliding grooves. The two sliders on the same side are connected by a linkage rod. Bearings are fixed in the middle of the mutually remote ends of the two linkage rods. A screw rod is fixed inside the inner ring of each bearing. The two screw rods respectively penetrate through the inner wall of the cavity and are threadedly connected to the threaded pipes embedded at the penetration points. The two linkage rods respectively penetrate through the top linkage grooves through a group of connecting rods and are fixed to the bottom of the leveling mechanism;

[0007] The leveling mechanism includes a limit profile. An air inlet valve for air inlet is installed at the input end of the limit profile. A plug board for air outlet is installed at the working end of the limit profile.

[0008] Further, the limit profile includes an L-shaped limit shell and a sealing plate. Positioning columns for inserting into the slots provided on the sealing plate are fixed at the corners of the open end of the limit shell. An air duct for increasing the air inlet width is installed on the inner wall of the limit shell. The air duct is communicated with the air inlet valve.

[0009] Further, a sliding groove is provided at the bending part of the limit shell. A plug board is movably connected inside the sliding groove. A filter screen is embedded in the middle of the plug board. The bottom surface of the filter screen is sealed by a cover plate. A plurality of air outlet pipes are installed at equal intervals at the bottom end of the cover plate.

[0010] Further, the air outlet pipe is inclined, and the inclined direction faces the middle of the workbench.

[0011] The utility model has the following beneficial effects compared with the prior art:

[0012] 1. By conveying wind power, wind pressure is applied to both ends of the paper cup raw material by each air outlet pipe to prevent curling at both ends. The suspension height at the bending part of the limit shell can be increased. That is, without jamming during normal conveying, the two ends of the paper cup can be leveled without curling, which does not affect the subsequent bonding operation;

[0013] 2. The distance between the two leveling mechanisms can be adjusted according to paper cup raw materials of different sizes, having better adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional view of the utility model.

[0015] Figure 2 is a structural schematic diagram of the leveling mechanism in the utility model.

[0016] Figure 3 This is the top view of the hollow cavity of the present utility model.

[0017] In the figure: 1, workbench; 2, leveling mechanism; 21, limit shell; 22, sealing plate; 23, positioning column; 24, air duct; 25, air inlet valve; 26, plug board; 27, card slot; 28, filter screen; 29, air outlet duct; 3, chute; 4, slider; 5, linkage rod; 6, bearing; 7, threaded pipe; 8, screw rod; 9, linkage groove. Specific embodiments

[0018] To facilitate the understanding of the present utility model, the device of the present utility model will be described more comprehensively below with reference to the relevant drawings. Embodiments of the device are shown in the drawings. However, the device can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present utility model more thorough and comprehensive.

[0019] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "setting" should be understood in a broad sense. For example, they can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0020] Embodiment

[0021] As Figures 1-3 shown, this embodiment provides a paper cup ultrasonic bottom bonding device, including a workbench 1. Two symmetrically arranged leveling mechanisms 2 are installed on the working surface of the workbench 1. A cavity is opened inside the workbench 1. Two groups of symmetrically arranged chutes 3 are opened on the inner bottom wall of the cavity. Linkage grooves 9 symmetric to each chute 8 are opened on the working surface of the workbench 1. A slider 4 adapted to each chute 3 is clamped inside each group of chutes 3. Two sliders 4 on the same side are connected by a linkage rod 5. Bearings 6 are fixed in the middle of the mutually remote ends of the two linkage rods 5. A screw rod 8 is fixed inside the inner ring of each bearing 6. The two screw rods 8 respectively penetrate through the inner wall of the cavity and are threadedly connected to the threaded pipes 7 embedded at the penetration points. A scale mark is also sprayed on the surface of the screw rod 8 to facilitate more precise adjustment of the distance between the two leveling mechanisms 2 during rotation (when rotating, the gradually extending or retracting screw rod 8 will synchronously drive the bearing to move, so that the linkage rod 5 drives the two sliders 4 to move, that is, drives the top leveling mechanism 2 to move). The two linkage rods 5 respectively pass through a group of connecting rods through the top linkage groove 9 and are fixed to the bottom of the leveling mechanism 2;

[0022] The leveling mechanism 2 includes a limiting profile. The limiting profile includes an L-shaped limiting shell 21 and a sealing plate 22. Positioning columns 23 for inserting into the slots opened in the sealing plate 22 are fixed at the respective end corners of the open end of the limiting shell 21. That is, in the working state, the limiting shell 21 is sealed by the sealing plate 22. A rubber sealing pad can also be attached to the sealing end of the sealing plate 22 to increase the sealing performance. An air delivery pipe 24 for increasing the air inlet width is installed on the inner wall of the limiting shell 21 (the width of the output end of the air delivery pipe 24 is slightly smaller than the width of the limiting shell 21. The purpose is to install a screen here to ensure the purity of the air delivery and prevent contamination of the paper cup raw materials). The air delivery pipe 24 is communicated with an air inlet valve 25. Air inlet valves 25 for air inlet are installed in the middle of the mutually remote ends of the two limiting shells 21 respectively;

[0023] An insertion plate 26 for air outlet is installed at the working end of the limiting profile. A sliding groove is opened at the bending part of the limiting shell 21. The insertion plate 26 is movably connected inside the sliding groove. A filter screen 28 is embedded in the middle of the insertion plate 26. The bottom surface of the filter screen 28 is sealed by a cover plate. A plurality of air outlet pipes 29 are installed at the bottom end of the cover plate and are equidistantly distributed. The air outlet pipes 29 are inclined, and the inclined direction faces the middle of the workbench 1. The inclined setting can prevent the wind force from being delivered to the bottom of the paper cup raw materials when the air outlet direction faces the two ends of the paper cup raw materials, resulting in vibration or deviation of the paper cup raw materials.

[0024] It should be noted that, Figure 1 the ultrasonic bonding device and the cup body forming mechanism in Figure 1 are the same as the structures set at the traditional workbench 1, so they are omitted in

[0025] For the paper cup ultrasonic bottom bonding device described in this embodiment, when the paper cup raw materials are conveyed to the workbench 1 for transmission, the two ends are respectively located at the bending parts of the two limiting shells 21. The wind force is conveyed by an external fan through a shunt pipe communicated with the two air inlet valves 25. The air flow is output from the air outlet pipes 29 on both sides to the two ends of the upper surface of the paper cup raw materials. At this time, the push rod at the workbench 1 drives (that is, the push rod of the traditional workbench 1 for pushing the paper cup raw materials, and the push rod is synchronously driven by the transmission mechanism at the bottom), and the subsequent bonding operation can be carried out.

[0026] It should be noted that the structure described in the present invention can be implemented in many different forms and is not limited to the embodiments. Any equivalent transformation made by those of ordinary skill in the art using the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, such as the loading and unloading of other items, is included in the protection scope of the present invention.

Claims

1. An ultrasonic bottom bonding device for paper cups, comprising a workbench, characterized in that: Two symmetric leveling mechanisms are installed on the working surface of the workbench. A cavity is formed inside the workbench. Two groups of symmetric sliding grooves are formed on the inner bottom wall of the cavity. Linkage grooves symmetric to the respective sliding grooves are formed on the working surface of the workbench. A slider adapted to each sliding groove is clamped inside each group of sliding grooves. The two sliders on the same side are connected by a linkage rod. Bearings are fixed in the middle of the mutually remote ends of the two linkage rods. A screw rod is fixed to the inner ring of each bearing. The two screw rods respectively penetrate through the inner wall of the cavity and are in threaded connection with the threaded pipes embedded at the penetration points. The two linkage rods respectively penetrate through the top linkage grooves through a set of connecting rods and are fixed to the bottom of the leveling mechanism. The leveling mechanism includes a limiting profile. An air inlet valve for air inlet is installed at the input end of the limiting profile. An insertion plate for air outlet is installed at the working end of the limiting profile.

2. The ultrasonic bottom bonding device for paper cups according to claim 1, wherein: The limiting profile includes an L-shaped limiting shell and a sealing plate. Positioning columns for inserting into the slots formed in the sealing plate are fixed at the respective end corners of the open end of the limiting shell. An air delivery pipe for increasing the air inlet width is installed on the inner wall of the limiting shell. The air delivery pipe is communicated with the air inlet valve.

3. The ultrasonic bottom bonding device for a paper cup according to claim 2, characterized in that: A sliding groove is formed at the bending part of the limiting shell. An insertion plate is movably connected inside the sliding groove. A filter screen is embedded in the middle of the insertion plate. The bottom surface of the filter screen is sealed by a cover plate. A plurality of air outlet pipes are installed at equal intervals at the bottom end of the cover plate.

4. The ultrasonic bottom bonding device for a paper cup according to claim 3, characterized in that: The air outlet pipes are inclined, and the inclined direction is towards the middle of the workbench.

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