Paper cup polylactic acid film spraying and laminating device

Abstract

The utility model relates to the field of polylactic acid laminating, in particular to a polylactic acid laminating device for paper cups. The device comprises a support, and a film spraying mechanism is arranged on the support; mounting frames are symmetrically arranged on the support, transmission rods are rotationally connected to the mounting frames, rotating frames are fixedly arranged at the two ends of each transmission rod and are of a circular structure, a plurality of paper rolls for machining are evenly and rotationally connected between the two rotating frames, and a transmission assembly is arranged at one end of each transmission rod. A limiting box assembly is further arranged on the support, and a limiting assembly for limiting the rotating frame through the limiting box assembly is arranged on the transmission assembly. A transmission assembly and a rotating frame are arranged, so that the paper roll can be conveniently used after being used; according to the paper cup laminating device, the next paper roll is easily switched through rapid rotation of the rotating frame, so that the feeding efficiency is greatly improved, the production downtime is shortened, and the problem that an existing paper cup laminating device is low in feeding efficiency can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of polylactic acid coating and laminating, in particular to a polylactic acid coating and laminating device for paper cups. Background Art

[0002] With the increasing awareness of environmental protection, biodegradable materials are increasingly used in the packaging industry. Polylactic acid (PLA), a biodegradable material made from fermented crops such as corn, has become a popular choice in the packaging industry due to its biodegradable and pollution-free properties. Paper cups are common packaging containers in daily life. The coating layer on their surface not only affects the waterproof and oil-proof properties of paper cups, but also affects the environmental performance of paper cups. The coating device uses advanced coating technology and control systems to ensure the uniform distribution of the polylactic acid coating layer on the surface of the paper cup, thereby improving the waterproof and oil-proof properties of the paper cup.

[0003] In actual application, the paper cup polylactic acid coating device has the following defects in the feeding stage: when the raw paper roll is exhausted, it is necessary to go through a relatively cumbersome process to replace the roller, that is, to remove the exhausted paper roll and install a new paper roll to continue feeding. This operation is not only time-consuming, but also significantly affects the overall production efficiency.

[0004] Therefore, it is urgent to provide a paper cup polylactic acid coating and laminating device to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a polylactic acid coating device for paper cups, so as to solve the problem of low feeding efficiency of the existing paper cup coating device mentioned in the background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a polylactic acid coating and laminating device for paper cups, comprising a bracket, on which a coating mechanism is arranged.

[0007] In order to solve the problem of low feeding efficiency of the existing paper cup coating device, the bracket is symmetrically provided with a mounting frame, the mounting frame is rotatably connected with a transmission rod, both ends of the transmission rod are fixed with a rotating frame, the rotating frame is a circular structure, a number of paper rolls for processing are evenly rotatably connected between the two rotating frames, and a transmission assembly is provided at one end of the transmission rod;

[0008] The bracket is also provided with a limit box assembly, and the transmission assembly is provided with a limit assembly for limiting the rotating frame through the limit box assembly. By providing the transmission assembly and the rotating frame, it is convenient to easily switch to the next paper roll through the rapid rotation of the rotating frame after the paper roll is used up, thereby greatly improving the feeding efficiency and reducing the production downtime, thereby effectively solving the problem of low feeding efficiency of the existing paper cup coating device.

[0009] As a further improvement of the present technical solution, the transmission assembly includes a first bevel gear fixedly connected to the transmission rod, the first bevel gear meshes with the second bevel gear, the second bevel gear is fixedly connected to one end of the mounting rod, the other end of the mounting rod is fixedly connected with a gear, the gear meshes with the rack, a slider is fixedly provided on one side of the rack, and a plurality of balls for reducing the sliding resistance of the rack are rotatably connected to the upper and lower ends of the rack, and a bearing rotatably connected to the limit box assembly is rotatably connected to the mounting rod; utilizing the transmission of the first bevel gear and the second bevel gear is beneficial to converting the rotation of the rotating frame into the rotation of the mounting rod, thereby driving the coordinated movement of the gear and the rack, thereby realizing the power transmission and control of the rotation of the rotating frame.

[0010] As a further improvement of the present technical solution, the limit box assembly includes an installation box fixedly connected to the bracket, a plurality of limit holes are opened on one side of the installation box, and a first slide groove for sliding of the limit assembly and a second slide groove for sliding of the slider are fixed on one side of the inner wall of the installation box.

[0011] As a further improvement of the present technical solution, the limit assembly includes a limit cylinder fixedly connected to the slider, a limit rod slidably connected inside the limit cylinder, one end of the limit rod located in the limit cylinder is fixedly connected to one end of a spring, the other end of the spring is fixedly connected to the inner wall of the limit cylinder, and the other end of the limit rod extends to the outside of the limit hole to limit the slider.

[0012] As a further improvement of the technical solution, the second sliding groove is adapted to the sliding block and may be a T-shaped or L-shaped structure.

[0013] As a further improvement of the technical solution, the second slide groove fits with a plurality of ball bearings on the slider, and the length of the second slide groove is adapted to that of the rack.

[0014] As a further improvement of the present technical solution, the distance between the plurality of limit holes matches the arc length corresponding to the angle between two adjacent paper rolls on the rotating frame; by designing the corresponding relationship between the limit holes and the positions of the paper rolls on the rotating frame, it is beneficial to ensure that the new paper roll is exactly in the feeding position after each rotation, thereby ensuring the continuity and stability of the feeding.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. The polylactic acid coating and laminating device for paper cups is provided with a transmission component and a rotating frame, which is conducive to easily switching to the next paper roll through the rapid rotation of the rotating frame after the paper roll is used up, thereby greatly improving the feeding efficiency and reducing the production downtime.

[0017] 2. This polylactic acid coating device for paper cups facilitates precise positioning during the rotation of the rotating frame by setting a limit box assembly and a limit assembly, ensuring that the new paper roll can be accurately aligned with the feeding position with each rotation, thereby improving the accuracy and convenience of operation; the application of the spring in the limit assembly is conducive to automatic resetting and insertion into the next limit hole after the limit rod is retracted, thereby realizing reliable locking of the rotation of the rotating frame and preventing accidental rotation and misoperation.

[0018] 3. This paper cup polylactic acid coating device utilizes the transmission of the first bevel gear and the second bevel gear to convert the rotation of the rotating frame into the rotation of the mounting rod, thereby driving the coordinated movement of the gear and the rack, thereby realizing the power transmission and control of the rotation of the rotating frame.

[0019] 4. The polylactic acid coating device for paper cups provides a ball and a slider on the rack and a corresponding second slide groove on the mounting box, so as to facilitate the smooth sliding of the rack in the slide groove, reduce the sliding resistance, and improve the stability and reliability of the movement.

[0020] 5. The polylactic acid coating device for paper cups is designed to have a corresponding relationship between the limiting holes and the positions of the paper rolls on the rotating frame, so that the new paper rolls can be placed exactly at the feeding position after each rotation, thereby ensuring the continuity and stability of the feeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the feeding mechanism structure of the utility model;

[0023] Figure 3 It is a front sectional view of the limit box assembly of the utility model;

[0024] Figure 4 It is a cross-sectional view of the limit box assembly of the utility model;

[0025] Figure 5 for Figure 4 A magnified view of the structure at A;

[0026] Figure 6 It is a cross-sectional view of the limiting component of the utility model.

[0027] The meaning of each number in the figure is:

[0028] 1. Bracket; 2. Laminating mechanism; 3. Mounting frame; 4. Rotating frame; 5. Transmission rod; 6. Paper roll; 7. Transmission assembly; 8. Limit box assembly; 9. Limit assembly;

[0029] 71. first bevel gear; 72. second bevel gear; 73. mounting rod; 74. gear; 75. rack; 76. bearing; 77. slider; 78. ball bearing;

[0030] 81. Installation box; 82. Limiting hole; 83. First slide slot; 84. Second slide slot;

[0031] 91. Limiting cylinder; 92. Limiting rod; 93. Spring. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like 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, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" or "several" is two or more, unless otherwise clearly and specifically defined.

[0035] See also Figure 1 As shown, the purpose of this embodiment is to provide a polylactic acid coating device for paper cups, including a bracket 1, on which a coating mechanism 2 is arranged.

[0036] For further information, see Figure 1-Figure 2 As shown, a mounting frame 3 is symmetrically arranged on the bracket 1, a transmission rod 5 is rotatably connected to the mounting frame 3, a rotating frame 4 is fixedly arranged at both ends of the transmission rod 5, the rotating frame 4 is a circular structure, a plurality of paper rolls 6 for processing are evenly rotatably connected between the two rotating frames 4, and a transmission assembly 7 is arranged at one end of the transmission rod 5;

[0037] A limit box assembly 8 is also provided on the bracket 1 , and a limit assembly 9 for limiting the rotating frame 4 through the limit box assembly 8 is provided on the transmission assembly 7 .

[0038] For further information, see Figure 2-Figure 4 As shown, the transmission assembly 7 includes a first bevel gear 71 fixedly connected to the transmission rod 5, the first bevel gear 71 meshes with the second bevel gear 72, the second bevel gear 72 is fixedly connected to one end of the mounting rod 73, and the other end of the mounting rod 73 is fixedly connected to a gear 74, the gear 74 meshes with the rack 75, a slider 77 is fixedly provided on one side of the rack 75, and a plurality of balls 78 for reducing the sliding resistance of the rack 75 are rotatably connected at the upper and lower ends of the rack 75, and a bearing 76 rotatably connected to the mounting rod 73 and rotatably connected to the limit box assembly 8; the limit rod 92 is pressed to retract it into the limit hole 82, and the rotating frame 4 is rotated at this time, and the rotating frame 4 rotates to drive the transmission rod 5 to rotate, and then the first bevel gear 71 and the second bevel gear 72 are transmitted to the mounting rod 73, and then the gear 74 is driven to rotate, so that the rack 75 meshing with it slides in the second slide groove 84 through the slider 77 thereon.

[0039] For details, please refer to Figure 2-Figure 4 As shown, the limit box assembly 8 includes an installation box 81 fixedly connected to the bracket 1, a plurality of limit holes 82 are opened on one side of the installation box 81, and a first slide groove 83 for sliding of the limit assembly 9 and a second slide groove 84 for sliding of the slider 77 are fixed on one side of the inner wall of the installation box 81.

[0040] For further information, see Figure 4 and Figure 5 As shown, the limit assembly 9 includes a limit cylinder 91 fixedly connected to the slider 77, and a limit rod 92 is slidably connected inside the limit cylinder 91. One end of the limit rod 92 located in the limit cylinder 91 is fixedly connected to one end of a spring 93, and the other end of the spring 93 is fixedly connected to the inner wall of the limit cylinder 91. The other end of the limit rod 92 extends to the outside of the limit hole 82 to limit the slider 77; the rack 75 slides to drive its upper limit assembly 9 to slide in the first slide groove 83 until the limit rod 92 of the limit assembly 9 slides to the next limit hole 82 position, and the spring 93 pushes the limit rod 92 into the limit hole 82.

[0041] For details, please refer to Figure 2 and Figure 3 As shown, the second slide groove 84 is matched with the slider 77 and can be a T-shaped or L-shaped structure.

[0042] Also, see Figure 2 and Figure 4 As shown, the second slide groove 84 fits with the plurality of balls 78 on the slider 77 , and the length of the second slide groove 84 matches that of the rack 75 .

[0043] In addition, see Figure 2 and Figure 4 As shown, the distance between the plurality of limiting holes 82 matches the arc length corresponding to the angle between two adjacent paper rolls 6 on the rotating frame 4 .

[0044] The specific working principle is as follows:

[0045] During operation, since a number of paper rolls 6 are connected to the rotating frame 4 and rotate evenly, if one of the paper rolls 6 is used up, it is only necessary to press the limit rod 92 to retract it into the limit hole 82, and then the rotating frame 4 is rotated, and the rotating frame 4 drives the transmission rod 5 to rotate, and then the transmission is transmitted to the mounting rod 73 through the first bevel gear 71 and the second bevel gear 72, and then the gear 74 is driven to rotate, so that the rack 75 meshing with it slides in the second slide groove 84 through the slider 77 thereon, and the ball 78 thereon reduces the resistance, and the sliding of the rack 75 drives the upper The limiting component 9 slides in the first slide groove 83 until the limiting rod 92 of the limiting component 9 slides to the position of the next limiting hole 82. The spring 93 pushes the limiting rod 92 into the limiting hole 82 to limit the entire rotating frame 4 and prevent the rotating frame 4 from rotating. At this time, the rotation angle of the rotating frame 4 just matches the distance between the two limiting holes 82, and the next new paper roll 6 just turns to the position where it can be fed and produced, replacing the previous used paper roll 6. This effectively solves the problem of low feeding efficiency of the existing paper cup laminating device.

[0046] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A polylactic acid coating device for paper cups, comprising a support (1), wherein a coating mechanism (2) is arranged on the support (1); Features: The support (1) is symmetrically provided with a mounting frame (3), the mounting frame (3) is rotatably connected with a transmission rod (5), both ends of the transmission rod (5) are fixedly provided with a rotating frame (4), the rotating frame (4) is a circular structure, a plurality of paper rolls (6) for processing are evenly rotatably connected between the two rotating frames (4), and a transmission assembly (7) is provided at one end of the transmission rod (5); The support (1) is also provided with a limit box assembly (8), and the transmission assembly (7) is provided with a limit assembly (9) for limiting the rotating frame (4) through the limit box assembly (8).

2. A polylactic acid coating device for paper cups according to claim 1, characterized in that: The transmission assembly (7) comprises a first bevel gear (71) fixedly connected to the transmission rod (5), the first bevel gear (71) meshing with a second bevel gear (72), the second bevel gear (72) fixedly connected to one end of a mounting rod (73), the other end of the mounting rod (73) fixedly connected with a gear (74), the gear (74) meshing with a rack (75), a slider (77) fixedly provided on one side of the rack (75), a plurality of balls (78) for reducing the sliding resistance of the rack (75) being rotatably connected at the upper and lower ends of the rack (75), and a bearing (76) rotatably connected to the mounting rod (73) and rotatably connected to the limit box assembly (8).

3. A polylactic acid coating device for paper cups according to claim 2, characterized in that: The limit box assembly (8) comprises an installation box (81) fixedly connected to the bracket (1), a plurality of limit holes (82) are provided on one side of the installation box (81), and a first slide groove (83) for sliding of the limit assembly (9) and a second slide groove (84) for sliding of the slider (77) are fixedly provided on one side of the inner wall of the installation box (81).

4. The polylactic acid coating device for paper cups according to claim 3, characterized in that: The limiting assembly (9) comprises a limiting cylinder (91) fixedly connected to the slider (77); a limiting rod (92) is slidably connected inside the limiting cylinder (91); one end of the limiting rod (92) located inside the limiting cylinder (91) is fixedly connected to one end of a spring (93); the other end of the spring (93) is fixedly connected to the inner wall of the limiting cylinder (91); the other end of the limiting rod (92) extends to the outside of the limiting hole (82) to limit the slider (77).

5. The polylactic acid coating device for paper cups according to claim 3, characterized in that: The second sliding groove (84) is adapted to the sliding block (77) and may be a T-shaped or L-shaped structure.

6. The polylactic acid coating device for paper cups according to claim 5, characterized in that: The second slide groove (84) fits with a plurality of balls (78) on the slider (77), and the length of the second slide groove (84) matches that of the rack (75).

7. The polylactic acid coating device for paper cups according to claim 3, characterized in that: The distance between the plurality of limiting holes (82) matches the arc length corresponding to the angle between two adjacent paper rolls (6) on the rotating frame (4).

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