High-speed paper cup hot press molding device

Abstract

The invention relates to the technical field of paper cup manufacturing and processing, and discloses a high-speed paper cup hot-press forming device which comprises a workbench, a rotating disc assembly and a cup bottom cutting assembly, a conveying table is arranged on one side of the workbench, the rotating disc assembly is arranged on the workbench, and the cup bottom cutting assembly is connected to the lower portion of the rotating disc assembly. And the cup bottom cutting assembly is used for cutting a bottom sheet. A round paper sheet is pushed to the bottom of a paper cup above the round paper sheet through a hot pressing block, then the round paper sheet is hot-pressed to the bottom of the fan blade forming paper cup, a fourth air cylinder works to drive a fixing plate to ascend and descend, a cup bottom heating cylinder and a tight supporting block are driven to ascend and descend, and the paper cup with the hot-pressed cup bottom can be further heated through the cup bottom heating cylinder; the bottom of the paper cup can be tightly bonded with the barrel body through heating, the firmness and the sealing performance of the bottom of the paper cup can be enhanced through cup bottom ironing, the heated cup bottom can be tightly supported through the supporting block, the bottom of the paper cup can be further tightly bonded with the barrel body, and triple fixing is conducted through hot pressing, heating and supporting.

Description

Technical Field

[0001] The invention relates to the technical field of paper cup preparation and processing, and in particular to a high-speed paper cup hot pressing forming device. Background Art

[0002] The China Packaging Industry Development Plan (2021-2025) points out that the packaging industry should further promote the "integration of industrialization and informationization", improve the level of digital empowerment, and further focus on key core technologies in the fields of green development, advanced technology, system integration, and intelligent manufacturing to carry out independent innovation and collaborative innovation. In the existing production of disposable paper cups, the paper cup forming process mainly includes laminating, slitting, printing, die-cutting, forming, packaging and other steps.

[0003] A high-speed paper cup forming device with the publication number CN112895587B includes a fan-shaped forming mechanism, a conveying mechanism, a cup bottom paper punching and cutting mechanism and a cup mouth curling mechanism; the fan-shaped forming mechanism includes a fan-shaped placing rack, a fan-shaped transport track and a fan-shaped forming structure; the conveying mechanism includes a conveying cylinder, a paper cup flipping structure and a paper cup turntable; the cup bottom paper punching and cutting mechanism is arranged below the paper cup turntable; the cup bottom paper punching and cutting mechanism includes a bottom paper sheet conveying structure, a bottom paper sheet cutting structure and a bottom paper sheet punching structure; the preparation process: the cut paper fan-shaped pieces are placed on the fan-shaped placing rack, and the fan-shaped pieces are transported, the fan-shaped pieces are formed, the fan-shaped paper tube is transported, and the cup bottom paper is punched, cut and hot-pressed at the bottom of the fan-shaped paper tube and the cup mouth curling. The present invention completes the cutting and hot pressing of the circular paper at the bottom of the paper cup in one step, which greatly improves the production and processing speed and efficiency of the preparation. However, since the paper sheet cutting and hot pressing are completed in one step and the turntable rotates at a fast speed, the paper sheet hot pressing time is short, and defective products are prone to occur. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the prior art that paper sheet cutting and hot pressing are completed in one step and the rotating speed of the turntable is fast, resulting in a short hot pressing time for paper sheets and easy occurrence of defective products. A high-speed paper cup hot pressing forming device is provided, which can enhance the fixing effect of the cup bottom and the cup tube through triple fixation of hot pressing, heating and tightening without slowing down the rotating speed of the rotating disk.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a high-speed paper cup hot pressing forming device, comprising: a workbench, a conveying platform is arranged on one side of the workbench; a turntable assembly, the turntable assembly is arranged on the workbench; a cup bottom cutting assembly, the cup bottom cutting assembly is connected under the turntable assembly, and the cup bottom cutting assembly is used to cut out a bottom film; a stamping assembly, the stamping assembly is connected under the cup bottom cutting assembly, and the stamping assembly is used to hot press the cut bottom film and the cup tube; a hot pressing assembly, the hot pressing assembly is arranged on one side of the stamping assembly, and the hot pressing assembly is used to further hot press the cup bottom and the cup tube; a feeding assembly, the feeding assembly is arranged on the conveying platform, and the feeding assembly is used to feed the cup tube.

[0006] As a further description of the above technical solution: the turntable assembly includes a rotating disk, a plurality of paper cup tubes are arranged at equal intervals below the rotating disk, an air suction duct structure is provided on the paper cup tube, and a rotating disk is arranged between the rotating disk and the feeding assembly.

[0007] As a further description of the above technical solution: the cup bottom cutting assembly includes a paper feeding belt and a cutting cylinder, the paper feeding belt is arranged on a workbench, the cutting cylinder is arranged below the paper feeding belt, and a first cylinder is connected below the cutting cylinder.

[0008] As a further description of the above technical solution: the stamping assembly includes a hot pressing block, which is arranged below the cutting cylinder, a second cylinder is connected below the hot pressing block, and a third cylinder is connected below the second cylinder.

[0009] As a further description of the above technical solution: the ironing component includes a cup bottom heating cylinder, the cup bottom heating cylinder is connected to a fixed plate, a heating pipe is connected to one side of the cup bottom heating cylinder, a tightening block is arranged on the fixed plate, a fourth cylinder is connected below the fixed plate, and a limiting plate is arranged on the outer side of the fourth cylinder.

[0010] As a further description of the above technical solution: a mounting frame is arranged on one side of the fixing plate, and a sensor is arranged on the mounting frame.

[0011] As a further description of the above technical solution: the feeding assembly includes a material unloading rack, a conveying rack is arranged below the material unloading rack, an ultrasonic welding machine is arranged on one side of the conveying rack, a first preheating assembly is arranged on one side of the material unloading rack, a second preheating assembly is arranged on one side of the material unloading rack, and a heat dissipation assembly is arranged on one side of the ultrasonic welding machine.

[0012] As a further description of the above technical solution: an arc-shaped heat conducting plate is arranged above the second preheating assembly.

[0013] As a further description of the above technical solution: a transfer frame is arranged at one end of the conveying frame, and an insulating baffle is arranged at the outlet end of the transfer frame.

[0014] The above technical solution has the following advantages or beneficial effects:

[0015] 1. The present invention first pushes the circular paper piece to the bottom of the paper cup above it through the hot pressing block, and then hot presses the circular paper piece on the bottom of the fan-shaped paper cup. The fourth cylinder drives the fixing plate to rise and fall, and drives the cup bottom heating cylinder and the tightening block to rise and fall. The cup bottom heating cylinder can further heat the paper cup after the cup bottom is hot-pressed, so that the bottom and the cylinder are tightly bonded. The hot sealing of the cup bottom can enhance the firmness and sealing of the bottom of the paper cup. The tightening block can tighten the heated cup bottom, so that the bottom and the cylinder are further tightly fitted. Through the triple fixation of hot pressing, heating and tightening, the fixing effect of the cup bottom and the cup cylinder is enhanced without slowing down the rotation speed of the rotating disk 31. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of a high-speed paper cup hot pressing forming device in one embodiment of the present invention;

[0017] Figure 2 for Figure 1 Schematic diagram of the structure of the cup bottom cutting assembly in the high-speed paper cup hot pressing forming device;

[0018] Figure 3 for Figure 1 A schematic diagram of the structure of the hot pressing assembly in a high-speed paper cup hot pressing forming device;

[0019] Figure 4 for Figure 1 A schematic diagram of the structure of the feeding assembly in the high-speed paper cup hot pressing forming device;

[0020] Figure 5 for Figure 4 A schematic diagram of the structure of the second preheating component in the feeding component;

[0021] Figure 6 for Figure 1 Schematic diagram of the structure of the insulating baffle in the high-speed paper cup hot pressing forming device.

[0022] Legend:

[0023] 1. Workbench; 2. Conveyor table; 3. Turntable assembly; 4. Cup bottom cutting assembly; 5. Punching assembly; 6. Hot pressing assembly; 7. Feeding assembly; 8. Turntable; 9. Mounting frame; 10. Sensor; 11. Arc-shaped heat conducting plate; 12. Insulating baffle; 31. Rotating disk; 32. Paper cup tube; 41. Paper feeding belt; 42. Cutting tube; 43. First cylinder; 51. Hot pressing block; 52. Second cylinder; 53. Third cylinder; 61. Cup bottom heating tube; 62. Fixing plate; 63. Heating pipe; 64. Tightening block; 65. Fourth cylinder; 66. Limiting plate; 71. Unloading rack; 72. Conveyor rack; 73. Ultrasonic welding machine; 74. First preheating assembly; 75. Second preheating assembly; 76. Heat dissipation assembly; 77. Conveyor rack. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] See also Figure 1-6The present invention provides a technical solution: a high-speed paper cup hot pressing forming device of the present invention comprises a workbench 1, a turntable assembly 3, a cup bottom cutting assembly 4, a punching assembly 5, a hot pressing assembly 6 and a feeding assembly 7. A conveying table 2 is arranged on one side of the workbench 1, the turntable assembly 3 is arranged on the workbench 1, the cup bottom cutting assembly 4 is connected below the turntable assembly 3, the cup bottom cutting assembly 4 is used to cut out a bottom film, the punching assembly 5 is connected below the cup bottom cutting assembly 4, the punching assembly 5 is used to hot press the cut bottom film with the cup tube, the hot pressing assembly 6 is arranged on one side of the punching assembly 5, and the hot pressing assembly 6 is used to hot press the cup bottom and the cup tube. For further ironing, a feeding assembly 7 is arranged on the conveying platform 2, and the feeding assembly 7 is used to feed the cup tube. The stamping assembly 5 includes a hot pressing block 51, and the hot pressing block 51 is arranged below the cutting tube 42. A second cylinder 52 is connected below the hot pressing block 51, and a third cylinder 53 is connected below the second cylinder 52. The ironing assembly 6 includes a cup bottom heating tube 61, and the cup bottom heating tube 61 is connected to a fixed plate 62. A heating pipe 63 is connected to one side of the cup bottom heating tube 61. A tightening block 64 is arranged on the fixed plate 62, and a fourth cylinder 65 is connected below the fixed plate 62. A limiting plate 66 is arranged on the outer side of the fourth cylinder 65.

[0028] In this embodiment, the circular paper piece is first pushed to the bottom of the paper cup above it by the heat pressing block 51, and then the circular paper piece is heat pressed on the bottom of the fan-shaped paper cup. The fourth cylinder 65 drives the fixing plate 62 to rise and fall, and drives the cup bottom heating cylinder 61 and the supporting block 64 to rise and fall. The cup bottom heating cylinder 61 can further heat the paper cup after the cup bottom is hot-pressed, so that the bottom and the cylinder body are tightly bonded. The hot bonding of the cup bottom can enhance the firmness and sealing of the bottom of the paper cup. The supporting block 64 can tighten the heated cup bottom, so that the bottom and the cylinder body are further tightly fitted. The triple fixation of hot pressing, heating and supporting can enhance the fixing effect of the cup bottom and the cup cylinder without slowing down the rotation speed of the rotating disk 31.

[0029] Specifically, when the ironing assembly 6 needs to be paused for maintenance, the air supply system of the fourth cylinder 65 is turned off, and the fixing plate 62 gradually slides downward under the action of gravity to prevent the cup ironing assembly 6 from remaining connected to the lower part of the cup body during the pause, thereby preventing the cup body from being damaged by scalding.

[0030] like Figure 1 and Figure 2 As shown, the turntable assembly 3 includes a rotating disk 31, a plurality of paper cup tubes 32 are arranged at equal intervals below the rotating disk 31, an air suction duct structure is provided on the paper cup tubes 32, and a rotating disk 8 is provided between the rotating disk 31 and the feeding assembly 7; the rotating disk 31 rotates to drive the cup tubes to rotate, thereby realizing the cup tube transfer, and the cup tubes formed by the fan blades on the feeding assembly 7 are transferred to the rotating disk 31 through the rotating disk 8.

[0031] The suction pipe structure may be composed of an air pump and a suction pipe to adsorb and fix the cup tube on the paper cup tube 32 .

[0032] like Figure 1 and Figure 2 As shown, the cup bottom cutting assembly 4 includes a paper feeding belt 41 and a cutting cylinder 42 . The paper feeding belt 41 is arranged on the workbench 1 , and the cutting cylinder 42 is arranged below the paper feeding belt 41 . A first cylinder 43 is connected below the cutting cylinder 42 .

[0033] In this embodiment, the first cylinder 43 drives the cutting cylinder 42 to rise, so that the cardboard transported on the paper feeding belt 41 can be cut to cut out a circular bottom plate, and the cup bottom is hot-pressed on the cup cylinder in cooperation with the punching assembly 5. The cutting and hot-pressing of the circular paper piece at the bottom of the paper cup are completed in one step instead of two steps, which greatly improves the production and processing speed and efficiency, has a high degree of digitization, and also solves the problems of large equipment space occupation and high energy consumption.

[0034] like Figure 1 and Figure 3 As shown, a mounting bracket 9 is provided on one side of the fixing plate 62, and a sensor 10 is provided on the mounting bracket 9; the sensor 10 is used to detect the height of the fourth cylinder 65 lifting the cup bottom heating tube 61. When working, the control switch is started to control the fourth cylinder 65 to work, so that the fourth cylinder 65 lifts the cup bottom heating tube 61. At the same time, the sensor 10 will continue to detect the lifting height. When it reaches the preset working position, it returns a signal to the control switch to stop further lifting, thereby improving the safety of ironing.

[0035] like Figure 1 and Figure 3 As shown, the feeding assembly 7 includes a material unloading rack 71, a conveying rack 72 is arranged below the material unloading rack 71, an ultrasonic welding machine 73 is arranged on one side of the conveying rack 72, a first preheating assembly 74 is arranged on one side of the material unloading rack 71, a second preheating assembly 75 is arranged on one side of the material unloading rack 71, and a heat dissipation assembly 76 is arranged on one side of the ultrasonic welding machine 73.

[0036] In this embodiment, the cup paper is unloaded by the unloading rack 71, the cup paper is transported by the conveying rack 72, and the cup paper is rolled into a cup tube by the ultrasonic welding machine 73. The upper surface of the cup paper can be preheated by the first preheating component 74, and the lower surface can be preheated by the second preheating component 75. The cup paper can be quickly formed into a cup tube, which improves the work efficiency. The heat dissipation component 76 can dissipate heat from the ultrasonic welding machine 73.

[0037] The first preheating component 74 and the second preheating component 75 can use a hot air box to blow out hot air for preheating, and the heat dissipation component 76 can use a cold fan to blow out cold air for heat dissipation.

[0038] like Figure 4 and Figure 5As shown, an arc-shaped heat-conducting plate 11 is arranged above the second preheating component 75; by covering the arc-shaped heat-conducting plate 11 above the cup paper, the cup paper is located between the arc-shaped heat-conducting plate 11 and the second preheating component 75, and the hot air blown upward from the second preheating component 75 can be blocked by the arc-shaped heat-conducting plate 11, and then the hot air is guided out from the end of the arc-shaped heat-conducting plate 11, so as to prevent the hot air blown from the second preheating component 75 from blowing upward onto the ultrasonic welding machine 73, thereby extending the service life of the ultrasonic welding machine 73.

[0039] like Figure 4 and Figure 6 As shown, a transfer frame 77 is provided at one end of the conveying frame 72, and an insulating baffle 12 is provided at the outlet end of the transfer frame 77; by providing the insulating baffle 12 at the outlet end of the transfer frame 77, and by providing the folding piece 121 of the insulating baffle 12, a limit is formed at the front end of the insulating baffle 12, so that the cup body can be restricted when it leaves the transfer frame 77, thereby reducing the friction of the cup body during movement, thereby reducing the generation of static electricity, and ensuring that the cup body can smoothly enter the cup groove on the rotating disk 8, avoiding abnormal transmission of paper cups, and avoiding the paper cups from being unable to smoothly enter the cup groove on the turntable due to abnormal shaking or static electricity, thereby affecting production efficiency and quality.

[0040] The transfer rack 77 adopts the conveying mechanism in the prior art by using a conveyor belt suitable for the material, such as a rubber conveyor belt or a plastic chain conveyor belt. The conveyor belt can be driven by an electric motor to continuously transfer the paper cup from the cup making mold area to the next workstation, and a trigger is set at a suitable position to detect the position and state of the paper cup. The trigger can be a photoelectric switch, a proximity switch or other sensor. Once it detects that the paper cup has reached the set position, it will trigger the corresponding action. When the paper cup reaches the specified position, the cup pushing device will be triggered to lift or push the paper cup to the next work area. The cup pushing device can be a pneumatic push rod, an airbag or a robotic arm, etc. The cup conveying mechanism needs to be coordinated and controlled by the control system, including the reception of sensor signals, the start and stop of the electric motor, and the adjustment of the conveyor belt speed.

[0041] Working principle: The circular paper piece is first pushed to the bottom of the paper cup above it by the hot pressing block 51, and then the circular paper piece is hot pressed on the bottom of the fan-shaped paper cup. The fourth cylinder 65 drives the fixing plate 62 to rise and fall, and drives the cup bottom heating cylinder 61 and the tightening block 64 to rise and fall. The cup bottom heating cylinder 61 can further heat the paper cup after the cup bottom is hot pressed, so that the bottom and the cylinder body are tightly bonded. The hot bonding of the cup bottom can enhance the firmness and sealing of the bottom of the paper cup. The tightening block 64 can tighten the heated cup bottom, so that the bottom and the cylinder body are further tightly fitted. Through the triple fixation of hot pressing, heating and tightening, the fixing effect of the cup bottom and the cup cylinder is enhanced without slowing down the rotation speed of the rotating disk 31.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0043] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A high-speed paper cup hot pressing forming device, characterized in that: include: A workbench (1), wherein a conveying platform (2) is arranged on one side of the workbench (1); A turntable assembly (3), wherein the turntable assembly (3) is arranged on the workbench (1); A cup bottom cutting assembly (4), the cup bottom cutting assembly (4) being connected below the turntable assembly (3), and the cup bottom cutting assembly (4) being used for cutting out a bottom film; A punching assembly (5), the punching assembly (5) being connected below the cup bottom cutting assembly (4), the punching assembly (5) being used for hot pressing the cut bottom sheet and the cup tube; A hot-sealing component (6), the hot-sealing component (6) being arranged on one side of the punching component (5), and the hot-sealing component (6) being used for further hot-sealing the cup bottom and the cup tube; A feeding assembly (7), wherein the feeding assembly (7) is arranged on the conveying platform (2), and the feeding assembly (7) is used for feeding the cup tube.

2. The high-speed paper cup hot pressing forming device according to claim 1, characterized in that: The turntable assembly (3) comprises a rotating disk (31), a plurality of paper cup tubes (32) are arranged at equal intervals below the rotating disk (31), an air suction duct structure is provided on the paper cup tubes (32), and a rotating material disk (8) is arranged between the rotating disk (31) and the feeding assembly (7).

3. The high-speed paper cup hot pressing forming device according to claim 1, characterized in that: The cup bottom cutting assembly (4) comprises a paper feeding belt (41) and a cutting cylinder (42); the paper feeding belt (41) is arranged on a workbench (1); the cutting cylinder (42) is arranged below the paper feeding belt (41); and a first cylinder (43) is connected below the cutting cylinder (42).

4. The high-speed paper cup hot pressing forming device according to claim 1, characterized in that: The punching assembly (5) comprises a hot pressing block (51), wherein the hot pressing block (51) is arranged below the cutting cylinder (42), a second cylinder (52) is connected below the hot pressing block (51), and a third cylinder (53) is connected below the second cylinder (52).

5. The high-speed paper cup hot pressing forming device according to claim 1, characterized in that: The ironing assembly (6) comprises a cup bottom heating cylinder (61), the cup bottom heating cylinder (61) is connected to a fixing plate (62), one side of the cup bottom heating cylinder (61) is connected to a heat supply pipe (63), a tightening block (64) is arranged on the fixing plate (62), a fourth cylinder (65) is connected below the fixing plate (62), and a limiting plate (66) is arranged on the outer side of the fourth cylinder (65).

6. The high-speed paper cup hot pressing forming device according to claim 5, characterized in that: A mounting frame (9) is provided on one side of the fixing plate (62), and a sensor (10) is provided on the mounting frame (9).

7. The high-speed paper cup hot pressing forming device according to claim 1, characterized in that: The feeding assembly (7) comprises a material unloading rack (71), a conveying rack (72) is arranged below the material unloading rack (71), an ultrasonic welding machine (73) is arranged on one side of the conveying rack (72), a first preheating assembly (74) is arranged on one side of the material unloading rack (71), a second preheating assembly (75) is arranged on one side of the material unloading rack (71), and a heat dissipation assembly (76) is arranged on one side of the ultrasonic welding machine (73).

8. The high-speed paper cup hot pressing forming device according to claim 7, characterized in that: An arc-shaped heat conducting plate (11) is arranged above the second preheating assembly (75).

9. The high-speed paper cup hot pressing forming device according to claim 7, characterized in that: A transfer frame (77) is provided at one end of the conveying frame (72), and an insulating baffle (78) is provided at the outlet end of the transfer frame (77).

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