A double-layer paper cup edge sealing structure

Abstract

The present invention relates to the technical field of paper cup production, and specifically to an edge sealing structure for double-layer paper cups, comprising a base, a sliding plate being slidably provided on the upper surface of the base, and a plurality of placement racks for placing inner and outer double-layer fan-shaped paper pieces of the double-layer paper cup being equidistantly provided on the upper surface of the sliding plate, and an edge sealing mechanism for covering the double-layer fan-shaped paper pieces in the placement rack being provided on the upper surface of the base; the edge sealing mechanism comprises a mounting plate fixedly provided on the upper surface of the base, and a lifting plate slidably provided on the surface of the mounting plate. The present invention, by providing an edge sealing mechanism, can achieve rapid edge sealing of the double-layer paper cup during the edge sealing process, thereby achieving the purpose of simultaneously sealing the inner and outer paper pieces of the double-layer paper cup, and during the edge sealing process, can effectively press and fix the edge of the paper piece, effectively ensuring the stability of the edge sealing of the paper piece, thereby effectively ensuring the quality of the double-layer paper cup after production.

Description

Technical Field

[0001] The present invention relates to the technical field of paper cup production, in particular to an edge sealing structure for a double-layer paper cup. Background Art

[0002] A paper cup is a paper container made by mechanically processing and gluing together paper (white cardboard) made from chemical wood pulp. It has a cup-shaped appearance. Wax-coated paper cups for frozen foods can hold ice cream, jam, butter, and more.

[0003] During the production of paper cups, the fan-shaped paper needs to be edge-sealed to form a cylindrical shape. During the production of double-layer paper cups, the inner or outer fan-shaped paper needs to be edge-sealed first, and then the outer or inner fan-shaped paper needs to be edge-sealed. During this process, hot air guns are currently mostly used for edge sealing. However, hot air guns cannot effectively limit the connection between the two ends of the fan-shaped paper during the edge sealing process, resulting in the two ends of the paper being easily offset during edge sealing. As a result, the outer diameter or inner diameter of different paper cups varies, which seriously affects the quality of the paper cups after production.

[0004] In view of this, the present invention proposes a double-layer paper cup edge sealing structure to solve the above problems. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a double-layer paper cup edge sealing structure, which has the advantages of effectively ensuring the stability of the paper edge during sealing, thereby effectively ensuring the quality of the double-layer paper cup after production.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A double-layer paper cup edge sealing structure includes a base, a sliding plate slidably provided on the upper surface of the base, and a plurality of placement racks equidistantly provided on the upper surface of the sliding plate for placing inner and outer double-layer fan-shaped paper pieces of the double-layer paper cup, and an edge sealing mechanism for sealing the double-layer fan-shaped paper pieces in the placement racks;

[0008] The edge sealing mechanism includes a mounting plate fixedly mounted on the upper surface of the base, and a lifting plate slidably arranged on the surface of the mounting plate, a mounting frame is fixedly mounted on the lower surface of the lifting plate, and both bottom ends of the mounting frame are fixedly provided with mounting blocks extending to the inside and outside of the placement frame respectively, and hot air nozzles are arranged on the sides of the mounting blocks. The edge sealing mechanism also includes a hot air blower fixedly mounted on the upper surface of the lifting plate, and the air inlet end of the hot air blower is provided with a filter cover for filtering dust and impurities in the air, and the air outlet end of the hot air blower is respectively connected to the hot air nozzles on the sides of the two mounting blocks.

[0009] As a preferred technical solution, a rectangular groove is provided on the side of the mounting block, and a rectangular block is slidably provided on the inner wall of the rectangular groove, a cavity is provided inside the rectangular block, and the hot air nozzle is embedded in the side of the rectangular block and connected to the cavity, two insulated conveying hoses are provided at the air outlet end of the hot air blower, and the two insulated conveying hoses extend to the interior of the two cavities at one end away from the hot air blower respectively, and the number of the hot air nozzles is several, and the several hot air nozzles are divided into two groups, and the two groups of hot air nozzles are equidistantly embedded in the side of the rectangular block respectively.

[0010] As an optimal technical solution, the front of the mounting plate is provided with a concave groove for the sliding of the lifting plate, and a screw is rotatably provided on the inner wall of the concave groove. A rotating motor for driving the screw to rotate is provided on the upper surface of the mounting plate, and a threaded hole is provided on the upper surface of the lifting plate that is threadedly connected to the surface of the screw.

[0011] As a preferred technical solution, two symmetrical electric push rods are fixedly provided on the inner wall of the rectangular groove, and the pushing ends of the two electric push rods are fixedly connected to the side surfaces of the rectangular block.

[0012] As a preferred technical solution, a number of clamping components are equidistantly fixed on the side of the rectangular block for effectively positioning the edge connection of the two fan-shaped paper pieces in the double-layer paper cup. The clamping components include a number of fixed cylinders equidistantly fixed on the side of the rectangular block, and a positioning column slidably arranged on the inner wall of the fixed cylinder. A clamping spring is fixed on the end of the positioning column, and the end of the clamping spring away from the positioning column is fixedly connected to the inner wall of the fixed cylinder.

[0013] As a preferred technical solution, the placement rack includes a mounting base fixed on the upper surface of the sliding plate, and a first conical fixing ring, a second conical fixing ring and a third conical fixing ring respectively fixed on the upper surface of the mounting base, the first conical fixing ring and the second conical fixing ring are both arranged inside the third conical fixing ring, and the first conical fixing ring is arranged inside the second conical fixing ring.

[0014] As a preferred technical solution, a first limiting channel and a second limiting channel are respectively formed between the first conical fixing ring and the second conical fixing ring, and between the second conical fixing ring and the third conical fixing ring for limiting the inner and outer double-layer fan-shaped paper pieces of the double-layer paper cup, and a first edge sealing opening and a second edge sealing opening are respectively opened on the surfaces of the first conical fixing ring and the second conical fixing ring.

[0015] As a preferred technical solution, the upper surface of the base is provided with a moving mechanism for driving the sliding plate to move horizontally, the moving mechanism includes a strip groove opened on the upper surface of the base, and a threaded column rotatably set on the inner wall of the strip groove, the side of the base is fixed with a stepping motor for driving the threaded column to rotate, the moving mechanism also includes a moving block slidably set on the inner wall of the strip groove, and the upper surface of the moving block is fixedly connected to the lower surface of the sliding plate, and the side of the moving block is provided with a threaded hole threadedly connected to the surface of the threaded column.

[0016] As a preferred technical solution, two symmetrical limiting blocks are fixedly provided on the lower surface of the sliding plate, and a limiting sliding groove for the two limiting blocks to slide is provided on the upper surface of the base.

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

[0018] 1. The present invention provides an edge sealing mechanism, which can achieve rapid edge sealing of the double-layer paper cup during the edge sealing process, thereby achieving the purpose of simultaneously sealing the inner and outer paper sheets of the double-layer paper cup. In addition, during the edge sealing process, the edge sealing portions of the paper sheets can be effectively tightened and fixed, effectively ensuring the stability of the edge sealing portions of the paper sheets during edge sealing, thereby effectively ensuring the quality of the double-layer paper cups after production.

[0019] 2. The present invention provides a moving mechanism so that in the actual process of sealing the double-layer paper cups, after the edge sealing of two paper sheets in one placement rack is completed, the stepping motor can be started to drive the threaded column to rotate. The rotation of the threaded column drives the moving block to move, thereby driving the sliding plate to move a specified distance to the left, so that the next placement rack enters the edge sealing mechanism and the edge sealing area, and takes out the paper sheet that has been edge-sealed on the previous placement rack, and re-inserts the unsealed paper sheet, thereby achieving the purpose of continuous edge sealing and effectively improving the efficiency of edge sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the top view of the structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the three-dimensional structure of the mounting block of the present invention;

[0024] Figure 4 This is a schematic diagram of the cross-sectional structure of the mounting block of the present invention;

[0025] Figure 5 This is a schematic diagram of the cross-sectional structure of the fixed cylinder of the present invention;

[0026] Figure 6 This is a schematic diagram of the structure of the base from above according to the present invention;

[0027] Figure 7 It is a schematic diagram of the three-dimensional structure of the placement rack of the present invention.

[0028] In the figure: 1, base; 2, sliding plate; 3, placement rack; 301, mounting seat; 302, first conical fixing ring; 303, second conical fixing ring; 304, third conical fixing ring; 305, first limiting channel; 306, second limiting channel; 307, first edge sealing opening; 308, second edge sealing opening; 4, edge sealing mechanism; 401, mounting plate; 402, lifting plate; 403, mounting rack; 404, mounting Block; 405, hot air nozzle; 406, hot air blower; 407, rectangular block; 408, cavity; 409, heat preservation delivery hose; 4010, lead screw; 4011, rotating motor; 4012, electric push rod; 5, clamping assembly; 501, fixing cylinder; 502, positioning column; 503, tightening spring; 6, moving mechanism; 601, threaded column; 602, stepping motor; 603, moving block; 604, limit block. DETAILED DESCRIPTION

[0029] The following describes embodiments of the present invention in detail, with examples of the embodiments illustrated in the accompanying drawings, wherein identical or similar reference numerals throughout denote identical or similar elements or elements having identical or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and intended solely to explain the present invention and are not to be construed as limiting the present invention. In the description of the present invention, it should be understood that terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise" indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings and are intended solely to facilitate description and simplify the description of the present invention. They do not indicate or imply that the devices or elements referred to must have, be constructed, or operate in a specific orientation, and are therefore not to be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of the aforementioned features. In the description of the present invention, “a plurality of” means two or more, and “a plurality of” means one or more, unless otherwise clearly defined.

[0030] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical, electrical, or mutually communicative connections; direct or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0031] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0032] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0033] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0034] According to the attached Figure 1-7 As shown, an embodiment of the present invention provides an edge sealing structure for a double-layer paper cup, including a base 1, a sliding plate 2 is slidably provided on the upper surface of the base 1, and a moving mechanism 6 for driving the sliding plate 2 to move horizontally is provided on the upper surface of the base 1, and the moving mechanism 6 includes a strip groove opened on the upper surface of the base 1, and a threaded column 601 rotatably set on the inner wall of the strip groove, a stepping motor 602 for driving the threaded column 601 to rotate is fixed on the side of the base 1, and the moving mechanism 6 also includes a moving block 603 slidably set on the inner wall of the strip groove, and the upper surface of the moving block 603 is fixedly connected to the lower surface of the sliding plate 2, and the side of the moving block 603 is provided with a threaded hole threadedly connected to the surface of the threaded column 601.

[0035] Two symmetrical limiting blocks 604 are fixedly provided on the lower surface of the sliding plate 2 , and limiting sliding grooves for the two limiting blocks 604 to slide are provided on the upper surface of the base 1 .

[0036] In addition, a number of placement racks 3 for placing the inner and outer double-layer fan-shaped paper pieces of the double-layer paper cup are equidistantly arranged on the upper surface of the sliding plate 2. The placement racks 3 include a mounting seat 301 fixed on the upper surface of the sliding plate 2, and a first conical fixing ring 302, a second conical fixing ring 303 and a third conical fixing ring 304 respectively fixed on the upper surface of the mounting seat 301. The first conical fixing ring 302 and the second conical fixing ring 303 are both arranged inside the third conical fixing ring 304, and the first conical fixing ring 302 is arranged inside the second conical fixing ring 303.

[0037] A first limiting channel 305 and a second limiting channel 306 for limiting the inner and outer double-layer fan-shaped paper pieces of the double-layer paper cup are respectively formed between the first conical fixing ring 302 and the second conical fixing ring 303, and between the second conical fixing ring 303 and the third conical fixing ring 304, and a first edge sealing opening 307 and a second edge sealing opening 308 are respectively opened on the surfaces of the first conical fixing ring 302 and the second conical fixing ring 303.

[0038] The upper surface of the base 1 is provided with an edge sealing mechanism 4 for covering the double-layer fan-shaped paper sheets in the placement rack 3;

[0039] The edge sealing mechanism 4 includes a mounting plate 401 fixed on the upper surface of the base 1, and a lifting plate 402 slidably arranged on the surface of the mounting plate 401. The front of the mounting plate 401 is provided with a concave groove for the sliding of the lifting plate 402, and a screw 4010 is rotatably arranged on the inner wall of the concave groove. A rotating motor 4011 for driving the screw 4010 to rotate is provided on the upper surface of the mounting plate 401, and a threaded hole is provided on the upper surface of the lifting plate 402 for threaded connection with the surface of the screw 4010.

[0040] A mounting bracket 403 is fixed to the lower surface of the lifting plate 402, and mounting blocks 404 are fixed at both bottom ends thereof, extending to the inside and outside of the placement rack 3 respectively. Hot air nozzles 405 are provided on the sides of the mounting blocks 404, and the edge sealing mechanism 4 also includes a hot air blower 406 fixed to the upper surface of the lifting plate 402, and a filter cover for filtering dust and impurities in the air is provided at the air inlet end of the hot air blower 406, and the air outlet end of the hot air blower 406 is respectively connected to the hot air nozzles 405 on the sides of the two mounting blocks 404.

[0041] A rectangular groove is provided on the side of the mounting block 404, and a rectangular block 407 is slidingly provided on the inner wall of the rectangular groove. A cavity 408 is provided inside the rectangular block 407, and the hot air nozzle 405 is embedded in the side of the rectangular block 407 and connected to the cavity 408. Two insulated conveying hoses 409 are provided at the air outlet end of the hot air blower 406, and the two insulated conveying hoses 409 extend to the inside of the two cavities 408 at one end away from the hot air blower 406 respectively. There are several hot air nozzles 405, and the several hot air nozzles 405 are divided into two groups. The two groups of hot air nozzles 405 are equidistantly embedded in the side of the rectangular block 407.

[0042] Two symmetrical electric push rods 4012 are fixedly provided on the inner wall of the rectangular groove, and the pushing ends of the two electric push rods 4012 are fixedly connected to the side surfaces of the rectangular block 407 .

[0043] Several clamping components 5 are equidistantly fixed to the side of the rectangular block 407 for effectively positioning the edge connection of the two fan-shaped paper pieces in the double-layer paper cup. The clamping component 5 includes several fixed cylinders 501 equidistantly fixed to the side of the rectangular block 407, and positioning columns 502 slidably set on the inner wall of the fixed cylinder 501. A clamping spring 503 is fixed to the end of the positioning column 502, and the end of the clamping spring 503 away from the positioning column 502 is fixedly connected to the inner wall of the fixed cylinder 501.

[0044] When in use, the edge sealing structure for a double-layer paper cup of the present invention can respectively wind the inner and outer fan-shaped paper sheets of the double-layer paper cup and place them in the first limiting channel 305 and the second limiting channel 306, so that the interfaces of the two paper sheets are respectively located in the first edge sealing opening 307 and the second edge sealing opening 308, and the PE coating film is placed in the middle of the interfaces of the paper sheets, then the rotating motor 4011 is started to drive the screw 4010 to rotate, and the rotation of the screw 4010 drives the lifting plate 402 to move downward, and the downward movement of the lifting plate 402 drives the two mounting blocks 404 to be inserted into and outside the placement rack 3, respectively, and make the two mounting blocks 404 face the first edge sealing opening 307 and the second edge sealing opening 308, respectively, and then the electric push rod 4012 is started to drive the rectangular block 407 to slide outward, so that the positioning column 502 effectively fixes the sealing parts of the two paper sheets against the inner and outer surfaces of the second conical fixing ring 303, and finally the hot air blower 406 is started to input high-temperature gas into the cavity 408, and through the heat The air nozzle 405 sprays the sealing part of the two paper sheets at a close distance, melting the PE coating film, realizing the rapid sealing of the double-layer paper cup, thereby achieving the purpose of simultaneously sealing the inner and outer paper sheets of the double-layer paper cup. Moreover, during the edge sealing process, the edge sealing part of the paper sheet can be effectively pressed and fixed, effectively ensuring the stability of the edge sealing part of the paper sheet during the edge sealing, thereby effectively ensuring the quality of the double-layer paper cup after production; at the same time, the present invention provides a moving mechanism 6, so that in the actual process of edge sealing the double-layer paper cup, after the edge sealing of the two paper sheets in one placement rack 3 is completed, the stepping motor 602 can be started to drive the threaded column 601 to rotate, and the rotation of the threaded column 601 drives the moving block 603 to move, thereby driving the sliding plate 2 to move to the left a specified distance, so that the next placement rack 3 enters the edge sealing area of ​​the edge sealing mechanism 4, and removes the paper sheet that has been edge-sealed on the previous placement rack 3, and re-inserts the unsealed paper sheet, thereby achieving the purpose of continuous edge sealing, effectively improving the efficiency of edge sealing.

[0045] Throughout this specification, reference to terms such as "an embodiment," "one embodiment," "certain embodiments," "illustrative embodiments," "example," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0046] The basic principles, main features, and advantages of the present invention have been described above in conjunction with specific embodiments. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-layer paper cup edge sealing structure, comprising a base (1), characterized in that: A sliding plate (2) is slidably provided on the upper surface of the base (1), and a plurality of placement racks (3) for placing inner and outer double-layer fan-shaped paper sheets of a double-layer paper cup are equidistantly provided on the upper surface of the sliding plate (2), and an edge sealing mechanism (4) for sealing the double-layer fan-shaped paper sheets in the placement racks (3) is provided on the upper surface of the base (1); The edge sealing mechanism (4) includes a mounting plate (401) fixed on the upper surface of the base (1), and a lifting plate (402) slidably arranged on the surface of the mounting plate (401), a mounting frame (403) fixed on the lower surface of the lifting plate (402), and mounting blocks (404) extending to the inside and outside of the placement frame (3) respectively at both bottom ends of the mounting frame (403), and hot air nozzles (405) are arranged on the sides of the mounting blocks (404). The edge sealing mechanism (4) also includes a hot air blower (406) fixed on the upper surface of the lifting plate (402), and a filter cover for filtering dust and impurities in the air is arranged at the air inlet end of the hot air blower (406), and the air outlet end of the hot air blower (406) is respectively connected to the hot air nozzles (405) on the sides of the two mounting blocks (404); The placement rack (3) comprises a mounting seat (301) fixed on the upper surface of the sliding plate (2), and a first conical fixing ring (302), a second conical fixing ring (303) and a third conical fixing ring (304) respectively fixed on the upper surface of the mounting seat (301), the first conical fixing ring (302) and the second conical fixing ring (303) are both arranged inside the third conical fixing ring (304), and the first conical fixing ring (302) is arranged inside the second conical fixing ring (303), and the surfaces of the first conical fixing ring (302) and the second conical fixing ring (303) are respectively provided with a first edge sealing opening (307) and a second edge sealing opening (308).

2. The double-layer paper cup edge sealing structure according to claim 1, characterized in that: A rectangular groove is provided on the side of the mounting block (404), and a rectangular block (407) is slidably provided on the inner wall of the rectangular groove. A cavity (408) is provided inside the rectangular block (407), and a hot air nozzle (405) is embedded in the side of the rectangular block (407) and communicated with the cavity (408). Two heat-insulating conveying hoses (409) are provided at the air outlet end of the hot air blower (406), and the ends of the two heat-insulating conveying hoses (409) away from the hot air blower (406) extend to the inside of the two cavities (408) respectively. There are several hot air nozzles (405), and the several hot air nozzles (405) are divided into two groups. The two groups of hot air nozzles (405) are respectively embedded in the side of the rectangular block (407) at equal distances.

3. The double-layer paper cup edge sealing structure according to claim 2, characterized in that: The front surface of the mounting plate (401) is provided with a concave groove for the sliding of the lifting plate (402), and a lead screw (4010) is rotatably provided on the inner wall of the concave groove. A rotating motor (4011) for driving the lead screw (4010) to rotate is provided on the upper surface of the mounting plate (401), and a threaded hole is provided on the upper surface of the lifting plate (402) for threaded connection with the surface of the lead screw (4010).

4. The double-layer paper cup edge sealing structure according to claim 3, characterized in that: Two symmetrical electric push rods (4012) are fixedly provided on the inner wall of the rectangular groove, and the pushing ends of the two electric push rods (4012) are fixedly connected to the side surfaces of the rectangular block (407).

5. The double-layer paper cup edge sealing structure according to any one of claims 2 to 4, characterized in that: A plurality of pressing assemblies (5) for effectively positioning the edge connection of two fan-shaped paper pieces in a double-layer paper cup are fixedly arranged at equal intervals on the side of the rectangular block (407), and the pressing assemblies (5) include a plurality of fixed cylinders (501) fixedly arranged at equal intervals on the side of the rectangular block (407), and a positioning column (502) slidably arranged on the inner wall of the fixed cylinder (501), and a holding spring (503) is fixedly arranged at the end of the positioning column (502), and the end of the holding spring (503) away from the positioning column (502) is fixedly connected to the inner wall of the fixed cylinder (501).

6. The double-layer paper cup edge sealing structure according to claim 1, characterized in that: A first limiting channel (305) and a second limiting channel (306) for limiting the inner and outer double-layer fan-shaped paper pieces of the double-layer paper cup are formed between the first conical fixing ring (302) and the second conical fixing ring (303), and between the second conical fixing ring (303) and the third conical fixing ring (304).

7. The double-layer paper cup edge sealing structure according to claim 1, characterized in that: The upper surface of the base (1) is provided with a moving mechanism (6) for driving the sliding plate (2) to move horizontally, the moving mechanism (6) comprising a strip groove provided on the upper surface of the base (1), and a threaded column (601) rotatably provided on the inner wall of the strip groove, a stepping motor (602) for driving the threaded column (601) to rotate is fixedly provided on the side surface of the base (1), the moving mechanism (6) further comprising a moving block (603) slidably provided on the inner wall of the strip groove, the upper surface of the moving block (603) being fixedly connected to the lower surface of the sliding plate (2), and a threaded hole threadedly connected to the surface of the threaded column (601) being provided on the side surface of the moving block (603).

8. The double-layer paper cup edge sealing structure according to claim 7, characterized in that: Two symmetrical limiting blocks (604) are fixedly provided on the lower surface of the sliding plate (2), and a limiting sliding groove for the two limiting blocks (604) to slide is provided on the upper surface of the base (1).

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