Processing technology of a new type of anti-permeation coated paper cup

Abstract

The present invention provides a processing technology for a new type of anti-permeation laminated paper cup, which comprises the following steps: printing patterns, die-cutting the cup body, die-cutting the cup bottom, die-cutting the bottom ring, hot pressing for forming, and strengthening the cup bottom: hot pressing the obtained annular bottom ring paper sheet on the bottom of the obtained formed paper cup through a strengthening device to obtain a paper cup with a thickened bottom; covering with a heat-shrinkable film: sleeving the anti-permeation heat-shrinkable film on the outer side of the obtained paper cup with a thickened bottom, and heating it with hot air to make the anti-permeation heat-shrinkable film shrink and cover the outside of the paper cup, so as to obtain a new type of anti-permeation laminated paper cup. The invention strengthens the bottom by adding an annular bottom ring paper sheet to the bottom of the formed paper cup, sleeving with a heat-shrinkable film, tightly fitting to the cup body after heating, and locking the annular bottom ring paper sheet, greatly enhancing the structural strength of the bottom, and avoiding permeation through the heat-shrinkable film.

Description

Technical Field

[0001] The present invention relates to the technical field of the production and processing of coated paper cups, and particularly relates to a processing technology for a new type of anti-permeation coated paper cup. Background Art

[0002] A paper cup is a paper container made by mechanically processing and bonding the base paper (white cardboard) made of chemical wood pulp. It has a cup shape in appearance. The paper cup for frozen food is waxed and can hold ice cream, jam, butter, etc. The paper cup for hot drinks is coated with plastic and can withstand temperatures above 90°C and even hold boiling water. The characteristics of the paper cup are safety, hygiene, lightness and convenience, and it can be used in public places, restaurants and dining halls. It is a disposable item.

[0003] The water impermeability is very poor. After holding water for a slightly long time, the cup body will be softened, and water seepage is likely to occur at the connection between the cup bottom and the cup body. Gently holding the cup with the palm can easily cause the cup body to soften and deform.

[0004] According to a paper cup anti-permeation process provided by the patent document with the application number CN202110800973.3, it includes the steps: paper cup base paper production step: preparing pulp and preparing base paper; paper cup inner and outer film production step: obtaining the paper cup inner film and the paper cup outer film by the coating method; paper cup base paper cutting step: cutting the fan-shaped ring cup body paper piece and the circular cup bottom paper by a slitter; paper cup base paper printing step: printing the fan-shaped ring cup body paper piece and the circular cup bottom paper by the water transfer printing process; paper cup forming step: hot-pressing the paper cup inner and outer films onto the paper cup by the hot-pressing film-forming method. The present invention prevents the penetration of moisture inside and outside the paper cup into the paper cup through the inner and outer films of the paper cup, which may cause the paper cup to soften and deform, and at the same time affect the overall service life of the paper cup; the design of the double-layer paper cup film of the present invention also realizes the multiple repeated use of the paper cup without affecting the shape change of the paper cup.

[0005] However, the inner and outer films of the paper cup produced by the above process are sleeved together with the paper cup body through the hot-pressing process. That is to say, the inner film has thermoplasticity. Then, when the inner film with thermoplasticity holds hot water, there is inevitably a possibility of deformation and peeling, which will cause structural damage to the paper cup and seriously affect the use of the paper cup. Summary of the Invention

[0006] In view of the above problems, the present invention provides a processing technology for a new type of anti-permeation coated paper cup, aiming to solve the technical problem of water seepage easily occurring at the connection between the cup bottom and the cup body after using for a slightly long time as mentioned in the above background art.

[0007] To achieve the above object, the present invention provides the following technical solution: A processing technology for a new type of anti-permeation coated paper cup, including the following steps:

[0008] S1. Printing pattern: Print a customized design pattern on the non-laminated side of the laminated paper through a printing device;

[0009] S2. Die-cutting the cup body: Place the laminated paper with the printed pattern obtained in S1 into a die-cutting device to punch out a fan-shaped cup body paper sheet;

[0010] S3. Die-cutting the cup bottom: Place the laminated paper into a die-cutting device to punch out a circular cup bottom paper sheet;

[0011] S4. Die-cutting the bottom ring: Place the non-laminated base paper into a die-cutting device to punch out an annular bottom ring paper sheet;

[0012] S5. Thermoforming: Bend the fan-shaped cup body paper sheet obtained in S2 through a forming device and perform thermocompression connection with the circular cup bottom paper sheet obtained in S3 to obtain a formed paper cup;

[0013] S6. Strengthening the cup bottom: Thermocompression the annular bottom ring paper sheet obtained in S4 onto the bottom of the formed paper cup obtained in S5 through a strengthening device to obtain a paper cup with a thickened bottom;

[0014] S7. Wrapping with heat-shrinkable film: Put an anti-permeation heat-shrinkable film on the outside of the paper cup with a thickened bottom obtained in S6, and heat it with hot air to make the anti-permeation heat-shrinkable film shrink and wrap on the outside of the paper cup, thus obtaining a new type of anti-permeation laminated paper cup.

[0015] Further, the strengthening device includes a base, a main bracket is provided on the top surface of the base, a feeding pipe is provided at one end of the main bracket, one end of the feeding pipe is provided on one side of the bottom ring placement bin, a heat-shrinkable film sleeving mechanism is provided on the other side of the bottom ring placement bin, a hot air shrinking mechanism is provided on one side of the heat-shrinkable film sleeving mechanism, a discharging pipe is provided on one side of the hot air shrinking mechanism, an inner cup mold pushing mechanism is provided on one side of the feeding pipe, and a bottom ring pressing mechanism is provided on one side of the discharging pipe.

[0016] Further, the end of the feeding pipe close to the bottom ring placement bin is arranged as an open half-pipe, and the end of the discharging pipe close to the hot air shrinking mechanism is arranged as an open half-pipe.

[0017] Further, a bottom ring elastic bracket is provided at the lower part of the bottom ring placement bin.

[0018] Further, the heat shrink film set mechanism includes a heat shrink film placement bin. An anti-slip ring is provided on the inner bottom surface of the heat shrink film placement bin. A film suction port is opened on the bottom surface of the heat shrink film placement bin. A film unfolding hook is provided at one end of the film suction port close to the bottom ring placement bin. A film sleeving bin is provided below the heat shrink film placement bin. A plurality of first film unfolding suction cups are provided on the inner bottom surface of the film sleeving bin. The plurality of first film unfolding suction cups are respectively arranged at the execution ends of first film unfolding telescopic cylinders. The plurality of first film unfolding telescopic cylinders are all arranged on the bottom surface of the film sleeving bin. A plurality of second film unfolding suction cups are respectively provided on both sides inside the film sleeving bin. The plurality of second film unfolding suction cups are respectively arranged at the execution ends of second film unfolding telescopic cylinders. The plurality of second film unfolding telescopic cylinders are respectively arranged on both sides of the film sleeving bin.

[0019] Further, the hot air shrinkage mechanism includes a shrinkage bin. A plurality of air nozzles are respectively provided around the shrinkage bin. The plurality of air nozzles are all connected to the output end of a heating blower through air pipes.

[0020] Further, the plurality of air nozzles are all inclined in the same direction.

[0021] Further, the inner cup mold pushing mechanism includes a pushing main support. One side of the pushing main support is arranged on one side of the main support. A plurality of pushing sliding rods are provided on the other side of the pushing main support. One ends of the plurality of pushing sliding rods are arranged on one side of a pushing sub-support. The other side of the pushing sub-support is arranged on one side of the main support. A pushing telescopic cylinder is provided in the middle of the pushing main support. The execution end of the pushing telescopic cylinder is rotatably connected to the middle of a pushing folding fork arm. One end of the pushing folding fork arm is arranged in the middle of the pushing main support. The other end of the pushing folding fork arm is arranged on one side of a pushing slider. The middle of the pushing slider is slidably connected to the middle of the plurality of pushing sliding rods. The other side of the pushing slider is slidably connected to an inner cup mold lifting block. The top surface of the inner cup mold lifting block is arranged at the execution end of a lifting telescopic cylinder. The lifting telescopic cylinder is arranged above the pushing slider. An inner cup mold body is provided on one side of the inner cup mold lifting block.

[0022] Further, the bottom ring pressing mechanism includes a pressing main support. One side of the pressing main support is arranged on one side of the main support. A plurality of pressing sliding rods are provided on the other side of the pressing main support. One ends of the plurality of pressing sliding rods are arranged on one side of a pressing sub-support. The other side of the pressing sub-support is arranged on one side of the main support. A pressing telescopic cylinder is provided in the middle of the pressing main support. The execution end of the pressing telescopic cylinder is rotatably connected to the middle of a pressing folding fork arm. One end of the pressing folding fork arm is arranged in the middle of the pressing main support. The other end of the pressing folding fork arm is arranged on one side of a pressing slider. The middle of the pressing slider is slidably connected to the middle of the plurality of pressing sliding rods. A bottom ring pressing block is provided at one end of the pressing slider.

[0023] Further, the novel anti-permeation laminated paper cup includes the formed paper cup, and an annular bottom ring paper sheet is provided at the bottom of the formed paper cup. An anti-permeation heat shrinkable film is sleeved on the outer side of the formed paper cup and the annular bottom ring paper sheet.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] By adding an annular bottom ring paper sheet to the bottom of the formed paper cup for reinforcement, and sleeving with a heat shrinkable film, which closely adheres to the cup body after heating and locks the annular bottom ring paper sheet, greatly strengthening the structural strength of the bottom, and avoiding permeation through the heat shrinkable film. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the external structure of the reinforcement device of the present invention Figure 1 ;

[0027] Figure 2 is a schematic diagram of the external structure of the reinforcement device of the present invention Figure 2 ;

[0028] Figure 3 is a schematic diagram of the structure of the bottom ring placement bin of the reinforcement device of the present invention;

[0029] Figure 4 is a schematic diagram of the structure of the heat shrinkable film sleeving mechanism of the reinforcement device of the present invention;

[0030] Figure 5 is a schematic diagram of the structure of the hot air shrinkage mechanism of the reinforcement device of the present invention;

[0031] Figure 6 is a schematic side view of the structure of the hot air shrinkage mechanism of the reinforcement device of the present invention;

[0032] Figure 7 is a schematic top view of the structure of the hot air shrinkage mechanism of the reinforcement device of the present invention;

[0033] Figure 8 is a schematic diagram of the structure of the inner cup mold pushing mechanism of the reinforcement device of the present invention Figure 1 ;

[0034] Figure 9 is a schematic diagram of the structure of the inner cup mold pushing mechanism of the reinforcement device of the present invention Figure 2 ;

[0035] Figure 10 is a schematic diagram of the structure of the bottom ring pressing mechanism of the reinforcement device of the present invention;

[0036] Figure 11 is a schematic diagram of the structure of the novel anti-permeation laminated paper cup of the present invention;

[0037] Figure 12 is a schematic sectional view of the structure of the novel anti-permeation laminated paper cup of the present invention;

[0038] Figure 13 This is a schematic cross-sectional view of the structure of the new anti-permeation laminated paper cup of the present invention.

[0039] In the figure: 1. Base; 2. Main support; 3. Feeding pipe; 4. Bottom ring placement bin; 41. Bottom ring elastic bracket; 5. Heat shrinkable film sleeving mechanism; 51. Heat shrinkable film placement bin; 52. Anti-slip ring; 53. Film spreading hook; 54. Film sleeving bin; 55. First film spreading sucker; 56. First film spreading telescopic cylinder; 57. Second film spreading sucker; 58. Second film spreading telescopic cylinder; 59. Film sucking port; 6. Hot air shrinking mechanism; 61. Shrinking bin; 62. Air nozzle; 63. Air pipe; 64. Heating blower; 7. Discharge pipe; 8. Inner cup mold pushing mechanism; 81. Pushing main support; 82. Pushing slide rod; 83. Pushing sub-support; 84. Pushing telescopic cylinder; 85. Pushing folding fork arm; 86. Pushing slider; 87. Inner cup mold lifting block; 88. Lifting telescopic cylinder; 89. Inner cup mold body; 9. Bottom ring pressing mechanism; 91. Pressing main support; 92. Pressing slide rod; 93. Pressing sub-support; 94. Pressing telescopic cylinder; 95. Pressing folding fork arm; 96. Pressing slider; 97. Bottom ring pressing block; 10. New anti-permeation laminated paper cup; 101. Formed paper cup; 102. Annular bottom ring paper sheet; 103. Anti-permeation heat shrinkable film. Detailed implementation manners

[0040] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

[0041] It should be noted that when an element is referred to as "fixedly provided on" another element, it can be directly on the other element or there can be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0043] Embodiment, a processing technology of a new anti-permeation laminated paper cup, includes the following steps:

[0044] S1. Printing pattern: Print a customized design pattern on the non - laminated side of the laminated paper through a printing device.

[0045] S2. Die - cutting the cup body: Put the laminated paper with the printed pattern obtained in S1 into a die - cutting device to punch out a fan - shaped cup - body paper sheet.

[0046] S3. Die - cutting the cup bottom: Put the laminated paper into a die - cutting device to punch out a circular cup - bottom paper sheet.

[0047] S4. Die - cutting the bottom ring: Put the non - laminated base paper into a die - cutting device to punch out an annular bottom - ring paper sheet 102.

[0048] S5. Thermo - pressing forming: Bend the fan - shaped cup - body paper sheet obtained in S2 through a forming device and conduct thermo - pressing connection with the circular cup - bottom paper sheet obtained in S3, so as to obtain a formed paper cup 101.

[0049] S6. Strengthening the cup bottom: Thermo - press the annular bottom - ring paper sheet 102 obtained in S4 on the bottom of the formed paper cup 101 obtained in S5 through a strengthening device to obtain a paper cup with a thickened bottom.

[0050] S7. Wrapping with a heat - shrinkable film: Put the anti - permeable heat - shrinkable film 103 on the outside of the paper cup with a thickened bottom obtained in S6, and conduct hot - air heating on it, so that the anti - permeable heat - shrinkable film 103 shrinks and wraps on the outside of the paper cup, thus obtaining a new type of anti - permeable laminated paper cup 10.

[0051] For the embodiment, please refer to Figure 1-2 , the strengthening device includes a base 1, a main bracket 2 is arranged on the top surface of the base 1, one end of the main bracket 2 is provided with a feeding pipe 3, one end of the feeding pipe 3 is arranged on one side of a bottom - ring placement bin 4, the other side of the bottom - ring placement bin 4 is provided with a heat - shrinkable film sleeving mechanism 5, one side of the heat - shrinkable film sleeving mechanism 5 is provided with a hot - air shrinking mechanism 6, one side of the hot - air shrinking mechanism 6 is provided with a discharging pipe 7, one side of the feeding pipe 3 is provided with an inner - cup mold pushing mechanism 8, and one side of the discharging pipe 7 is provided with a bottom - ring pressing mechanism 9.

[0052] For the embodiment, please refer to Figure 1-2 , one end of the feeding pipe 3 close to the bottom - ring placement bin 4 is arranged as an open half - pipe, and one end of the discharging pipe 7 close to the hot - air shrinking mechanism 6 is arranged as an open half - pipe. This design is to enable the inner - cup mold pushing mechanism 8 and the bottom - ring pressing mechanism 9 to operate on the paper cup.

[0053] For the embodiment, please refer to Figure 3, a bottom ring elastic bracket 41 is provided at the lower part of the bottom ring placement bin 4. This design uses the bottom ring elastic bracket 41 to support the annular bottom ring paper sheet 102 to the same height as the central axis of the paper cup feeding direction, thereby facilitating the docking of the bottom of the paper cup. After docking, the paper cup continues to move forward. Due to the elasticity of the bottom ring elastic bracket 41, it will not block the forward movement of the paper cup.

[0054] For the embodiment, please refer emphatically to Figure 4 , the heat shrink film sleeving mechanism 5 includes a heat shrink film placement bin 51. An anti-slip ring 52 is provided on the inner bottom surface of the heat shrink film placement bin 51. A film suction port 59 is opened on the bottom surface of the heat shrink film placement bin 51. A film spreading hook 53 is provided at one end of the film suction port 59 close to the bottom ring placement bin 4. A film sleeving bin 54 is provided below the heat shrink film placement bin 51. A plurality of first film spreading suction cups 55 are provided on the inner bottom surface of the film sleeving bin 54. The plurality of first film spreading suction cups 55 are respectively arranged at the execution ends of first film spreading telescopic cylinders 56. The plurality of first film spreading telescopic cylinders 56 are all arranged on the bottom surface of the film sleeving bin 54. A plurality of second film spreading suction cups 57 are respectively provided on both sides inside the film sleeving bin 54. The plurality of second film spreading suction cups 57 are respectively arranged at the execution ends of second film spreading telescopic cylinders 58. The plurality of second film spreading telescopic cylinders 58 are respectively arranged on both sides of the film sleeving bin 54. This design uses the plurality of first film spreading telescopic cylinders 56 to control the plurality of first film spreading suction cups 55 to suck the lowermost sheet of the anti-permeation heat shrink film 103 placed in the heat shrink film placement bin 51 downward through the film suction port 59 and pull it. The film spreading hook 53 hooks the upper part of the anti-permeation heat shrink film 103. The plurality of second film spreading telescopic cylinders 58 push the plurality of second film spreading suction cups 57 to respectively suck both sides of the anti-permeation heat shrink film 103 and pull them to both sides, so that the anti-permeation heat shrink film 103 is in an unfolded state. When the inner cup mold pushing mechanism pushes the formed paper cup 101 through, the anti-permeation heat shrink film 103 is sleeved on the outside of the formed paper cup 101.

[0055] For the embodiment, please refer emphatically to Figures 5-7 , the hot air shrinkage mechanism 6 includes a shrinkage bin 61. A plurality of air nozzles 62 are respectively provided around the shrinkage bin 61. The plurality of air nozzles 62 are all connected to the output end of a heating blower 64 through air pipes 63. The plurality of air nozzles 62 are all inclined in the same direction. This design uses the heating blower 64 to generate high-temperature gas, which is distributed to the plurality of air nozzles 62 through the air pipes 63. The plurality of air nozzles 62 inclined in the same direction simultaneously output high-temperature gas into the shrinkage bin 61, thereby generating a spiral air flow, which is more conducive to the uniform heating and uniform shrinkage of the anti-permeation heat shrink film 103, so that the anti-permeation heat shrink film 103 is closely attached to the outside of the formed paper cup 101.

[0056] For the embodiment, please refer emphatically to Figures 8-9, the inner cup mold pushing mechanism 8 includes a pushing main support 81, one side of the pushing main support 81 is arranged on one side of the main support 2, and the other side of the pushing main support 81 is provided with a plurality of pushing sliding rods 82. One ends of the plurality of pushing sliding rods 82 are arranged on one side of a pushing sub-support 83, and the other side of the pushing sub-support 83 is arranged on one side of the main support 2. The middle part of the pushing main support 81 is provided with a pushing telescopic cylinder 84, and the execution end of the pushing telescopic cylinder 84 is rotatably connected to the middle part of a pushing folding fork arm 85. One end of the pushing folding fork arm 85 is arranged at the middle part of the pushing main support 81, and the other end of the pushing folding fork arm 85 is arranged on one side of a pushing slider 86. The middle part of the pushing slider 86 is slidably connected to the middle parts of the plurality of pushing sliding rods 82, and the other side of the pushing slider 86 is slidably connected to an inner cup mold lifting block 87. The top surface of the inner cup mold lifting block 87 is arranged at the execution end of a lifting telescopic cylinder 88, and the lifting telescopic cylinder 88 is arranged above the pushing slider 86. One side of the inner cup mold lifting block 87 is provided with an inner cup mold body 89. This design controls the inner cup mold lifting block 87 to descend through the lifting telescopic cylinder 88, drives the inner cup mold body 89 to descend to the middle of the feeding pipe 3, and deforms the pushing folding fork arm 85 by pushing through the pushing telescopic cylinder 84, thereby pushing the pushing slider 86 to slide, and pushing the inner cup mold body 89 to slide along the direction of the pushing sliding rod 82, so as to achieve the effect of pushing the formed paper cup 101 in the feeding pipe 3.

[0057] For the embodiment, please refer with emphasis to Figure 10 , the bottom ring pressing mechanism 9 includes a pressing main support 91, one side of the pressing main support 91 is arranged on one side of the main support 2, and the other side of the pressing main support 91 is provided with a plurality of pressing sliding rods 92. One ends of the plurality of pressing sliding rods 92 are arranged on one side of a pressing sub-support 93, and the other side of the pressing sub-support 93 is arranged on one side of the main support 2. The middle part of the pressing main support 91 is provided with a pressing telescopic cylinder 94, and the execution end of the pressing telescopic cylinder 94 is rotatably connected to the middle part of a pressing folding fork arm 95. One end of the pressing folding fork arm 95 is arranged at the middle part of the pressing main support 91, and the other end of the pressing folding fork arm 95 is arranged on one side of a pressing slider 96. The middle part of the pressing slider 96 is slidably connected to the middle parts of the plurality of pressing sliding rods 92, and one end of the pressing slider 96 is provided with a bottom ring pressing block 97. This design deforms the pressing folding fork arm 95 by pushing through the pressing telescopic cylinder 94, thereby pushing the pressing slider 96 to slide, and the bottom ring pressing block 97 to slide along the direction of the pressing sliding rod 92, so as to press the annular bottom ring paper sheet 102 against the bottom of the formed paper cup 101.

[0058] For the embodiment, please refer with emphasis to Figures 11-13, the novel anti-permeation coated paper cup 10 includes the formed paper cup 101, a ring-shaped bottom ring paper sheet 102 is provided at the bottom of the formed paper cup 101, and an anti-permeation heat-shrinkable film 103 is sleeved outside the formed paper cup 101 and the ring-shaped bottom ring paper sheet 102. This design strengthens the structural strength of the bottom of the formed paper cup 101 through the ring-shaped bottom ring paper sheet 102, and greatly improves the anti-permeation property of the cup body while locking the ring-shaped bottom ring paper sheet 102 through the anti-permeation heat-shrinkable film 103.

[0059] Operation principle of the reinforcement device: First, the formed paper cup 101 slides into the feeding pipe 3 along the pipeline; at the same time, the heat-shrinkable film sleeving mechanism 5 controls multiple first film-unfolding telescopic cylinders 56 to control multiple first film-unfolding suction cups 55 to suck and pull down the lowermost sheet of the anti-permeation heat-shrinkable film 103 placed in the heat-shrinkable film placement bin 51 through the film-sucking port 59. The upper part of the anti-permeation heat-shrinkable film 103 is hooked by the film-unfolding hook 53. Multiple second film-unfolding telescopic cylinders 58 are used to push multiple second film-unfolding suction cups 57 to respectively suck both sides of the anti-permeation heat-shrinkable film 103 and pull them to both sides, so that the anti-permeation heat-shrinkable film 103 is in an unfolded state; the lifting telescopic cylinder 88 is used to control the inner cup mold lifting block 87 to descend, driving the inner cup mold body 89 to descend to the middle of the feeding pipe 3. The pushing telescopic cylinder 84 is used to push the pushing folding fork arm 85 to deform, and then push the pushing slider 86 to slide, and push the inner cup mold body 89 to slide along the pushing slide rod 82, so as to push the formed paper cup 101 in the feeding pipe 3 into the bottom ring placement bin 4 first; the bottom ring elastic bracket 41 supports the ring-shaped bottom ring paper sheet 102 to the same height as the central axis of the paper cup feeding direction, so as to facilitate docking with the bottom of the paper cup. After docking, the paper cup continues to move forward. Due to the elasticity of the bottom ring elastic bracket 41, it will not block the forward movement of the paper cup; then it enters the heat-shrinkable film sleeving mechanism 5, and the anti-permeation heat-shrinkable film 103 is sleeved outside the formed paper cup 101; the formed paper cup 101 with a ring-shaped bottom ring paper sheet 102 at the bottom and an anti-permeation heat-shrinkable film 103 sleeved outside is continuously pushed into the hot air shrinking mechanism 6; the bottom ring pressing mechanism 9 uses the pressing telescopic cylinder 94 to push the pressing folding fork arm 95 to deform, and then push the pressing slider 96 to slide, and the bottom ring pressing block 97 slides along the pressing slide rod 92, so as to press the ring-shaped bottom ring paper sheet 102 against the bottom of the formed paper cup 101; the hot air shrinking mechanism 6 generates high-temperature gas through the heating fan 64, and distributes it to multiple air nozzles 62 through the air pipe 63. Multiple air nozzles 62 arranged obliquely in the same direction simultaneously output high-temperature gas into the shrinking bin 61, so as to generate a spiral air flow, which is more conducive to the uniform heating and uniform shrinking of the anti-permeation heat-shrinkable film 103, so that the anti-permeation heat-shrinkable film 103 is tightly attached to the outside of the formed paper cup 101, thus obtaining the novel anti-permeation coated paper cup 10; the bottom ring pressing mechanism 9 retracts, driving the novel anti-permeation coated paper cup 10 to fall into the middle of the discharge pipe 7 and output along the discharge pipe 7, that is, it is completed.

[0060] The present invention has been described by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above-mentioned manner. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A processing technology for an anti-permeation coated paper cup, characterized in that: It includes the following steps: S1. Printing pattern: Printing a customized design pattern on the non-laminated side of the first laminated paper through a printing device; S2. Die-cutting the cup body: Placing the second laminated paper with the printed pattern obtained in S1 into a die-cutting device to punch out fan-shaped cup body paper pieces; S3. Die-cutting the cup bottom: Placing the first laminated paper into a die-cutting device to punch out circular cup bottom paper pieces; S4. Die-cutting the bottom ring: Placing the non-laminated base paper into a die-cutting device to punch out annular bottom ring paper pieces (102); S5. Thermoforming: Bending the fan-shaped cup body paper pieces obtained in S2 through a forming device and Performing thermo-compression connection with the circular cup bottom paper pieces obtained in S3 to obtain a formed paper cup (101); S6. Strengthening the cup bottom: Thermo-compressing the annular bottom ring paper pieces (102) obtained in S4 on the bottom of the formed paper cup (101) obtained in S5 through a strengthening device to obtain a paper cup with a thickened bottom; S7. Wrapping with a heat-shrinkable film: Putting an anti-permeation heat-shrinkable film (103) on the outside of the paper cup with a thickened bottom obtained in S6, and performing hot air heating on it to make the anti-permeation heat-shrinkable film (103) shrink and wrap on the outside of the paper cup, thereby obtaining an anti-permeation laminated paper cup (10); The strengthening device in S6 includes a base (1), a main support (2) is provided on the top surface of the base (1), a feeding pipe (3) is provided at one end of the main support (2), one end of the feeding pipe (3) is arranged on one side of the bottom ring placement bin (4), a heat-shrinkable film sleeving mechanism (5) is arranged on the other side of the bottom ring placement bin (4), a hot air shrinking mechanism (6) is arranged on one side of the heat-shrinkable film sleeving mechanism (5), a discharge pipe (7) is arranged on one side of the hot air shrinking mechanism (6), an inner cup mold pushing mechanism (8) is arranged on one side of the feeding pipe (3), and a bottom ring pressing mechanism (9) is arranged on one side of the discharge pipe (7).

2. The processing technology of an anti-permeation laminated paper cup according to claim 1, characterized in that: One end of the feeding pipe (3) close to the bottom ring placement bin (4) is arranged as an open semi-tube, and one end of the discharge pipe (7) close to the hot air shrinking mechanism (6) is arranged as an open semi-tube.

3. The processing technology of an anti-permeation coated paper cup according to claim 1, characterized in that: A bottom ring elastic bracket (41) is provided at the lower part of the bottom ring placement bin (4).

4. The processing technology of an anti-permeation coated paper cup according to claim 1, characterized in that: The heat-shrinkable film sleeving mechanism (5) includes a heat-shrinkable film placement bin (51), an anti-slip ring (52) is provided on the inner bottom surface of the heat-shrinkable film placement bin (51), a film suction port (59) is opened on the bottom surface of the heat-shrinkable film placement bin (51), a film unfolding hook (53) is arranged at one end of the film suction port (59) close to the bottom ring placement bin (4), a film sleeving bin (54) is provided below the heat-shrinkable film placement bin (51), a plurality of first film unfolding suction cups (55) are provided on the inner bottom surface of the film sleeving bin (54), the plurality of first film unfolding suction cups (55) are respectively arranged at the execution ends of first film unfolding telescopic cylinders (56), and the plurality of first film unfolding telescopic cylinders (56) are all arranged on the bottom surface of the film sleeving bin (54), a plurality of second film unfolding suction cups (57) are respectively arranged on both sides inside the film sleeving bin (54), the plurality of second film unfolding suction cups (57) are respectively arranged at the execution ends of second film unfolding telescopic cylinders (58), and the plurality of second film unfolding telescopic cylinders (58) are respectively arranged on both sides of the film sleeving bin (54).

5. The processing technology of an anti-permeation coated paper cup according to claim 1, characterized in that: The hot air shrinking mechanism (6) includes a shrinking chamber (61), and a plurality of air nozzles (62) are respectively arranged around the shrinking chamber (61). The plurality of air nozzles (62) are all connected to the output end of a heating blower (64) through air pipes (63).

6. The processing technology of an anti-permeation coated paper cup according to claim 5, characterized in that: The plurality of air nozzles (62) are all inclined in the same direction.

7. The processing technology of an anti-permeation laminated paper cup according to claim 1, characterized in that: The inner cup mold pushing mechanism (8) includes a pushing main support (81). One side of the pushing main support (81) is arranged on one side of the main support (2). A plurality of pushing sliding rods (82) are arranged on one side of the pushing main support (81). One ends of the plurality of pushing sliding rods (82) are arranged on one side of a pushing sub-support (83). One side of the pushing sub-support (83) is arranged on one side of the main support (2). A pushing telescopic cylinder (84) is arranged in the middle of the pushing main support (81). The execution end of the pushing telescopic cylinder (84) is rotatably connected to the middle of a pushing folding fork arm (85). One end of the pushing folding fork arm (85) is arranged in the middle of the pushing main support (81). The other end of the pushing folding fork arm (85) is arranged on one side of a pushing slider (86). The middle of the pushing slider (86) is slidably connected to the middle of the plurality of pushing sliding rods (82). The other side of the pushing slider (86) is slidably connected to an inner cup mold lifting block (87). The top surface of the inner cup mold lifting block (87) is arranged at the execution end of a lifting telescopic cylinder (88). The lifting telescopic cylinder (88) is arranged above the pushing slider (86). An inner cup mold body (89) is arranged on one side of the inner cup mold lifting block (87).

8. The processing technology of an anti-permeation laminated paper cup according to claim 1, characterized in that: The bottom ring pressing mechanism (9) includes a pressing main support (91). One side of the pressing main support (91) is arranged on one side of the main support (2). A plurality of pressing sliding rods (92) are arranged on one side of the pressing main support (91). One ends of the plurality of pressing sliding rods (92) are arranged on one side of a pressing sub-support (93). One side of the pressing sub-support (93) is arranged on one side of the main support (2). A pressing telescopic cylinder (94) is arranged in the middle of the pressing main support (91). The execution end of the pressing telescopic cylinder (94) is rotatably connected to the middle of a pressing folding fork arm (95). One end of the pressing folding fork arm (95) is arranged in the middle of the pressing main support (91). The other end of the pressing folding fork arm (95) is arranged on one side of a pressing slider (96). The middle of the pressing slider (96) is slidably connected to the middle of the plurality of pressing sliding rods (92). One end of the pressing slider (96) is provided with a bottom ring pressing block (97).

9. The processing technology of an anti-permeation coated paper cup according to claim 1, characterized in that: The anti-permeation coated paper cup (10) includes the formed paper cup (101). An annular bottom ring paper sheet (102) is arranged at the bottom of the formed paper cup (101). An anti-permeation heat shrinkable film (103) is sleeved outside the formed paper cup (101) and the annular bottom ring paper sheet (102).

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