Bottom sealing device for disposable paper cup production

Abstract

The utility model discloses a bottom sealing device for disposable paper cup production, and belongs to the technical field of paper cup production. A bottom sealing device for disposable paper cup production comprises a paper feeding part and a rotating part and a bottom sealing part which are installed on the paper feeding part, and further comprises a frame body fixedly connected to the top of the paper feeding part; wherein the inner side of the frame body is fixedly connected with an air cylinder, and the output end of the air cylinder is fixedly connected with a shell through a mounting plate; the positioning ring is connected to the top of the shell through an elastic part I, and the elastic part I is used for supporting the positioning ring; the air cylinder is started to drive the shell and the positioning ring to move upwards, the positioning ring enables paper to be cut to abut against the inner top of the frame body, the paper can be positioned, the cut section of the paper can be kept flat, and the paper can be cut conveniently. And the irregular shape of the stamped cup bottom paper sheet caused by bending of the paper during stamping is prevented, so that the production quality of the paper cup is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of paper cup production, in particular to a bottom sealing device for producing disposable paper cups. Background Art

[0002] Paper cups are made of paper made of chemical wood pulp through mechanical processing and bonding. They are cup-shaped in appearance. They are safe, hygienic, light and convenient. They can be used in public places, hotels and restaurants. They are disposable items. In the production process of disposable paper cups, the cup body is first manufactured, then the round paper piece at the bottom of the paper cup is punched out, and finally the round paper piece is fixed to the bottom of the cup body to complete the packaging of the paper cup.

[0003] After searching, the existing Chinese patent publication number: CN214448873U discloses a cup bottom rolling sealing mechanism of a paper cup machine. The scheme includes a driving device, a rotating device, a forming device, a paper feeding device and a bottom sealing device. The driving device includes a driven shaft, and the rotating device includes a turntable. The upper surface of the turntable is provided with a mounting groove, and the lower surface of the driven shaft is welded to the mounting groove. The forming device includes a paper guide mounting seat, and the paper feeding device includes a connecting plate. The upper surface of the connecting plate is welded to the lower surface of the paper guide mounting seat. The utility model is used to connect the paper release roller and the paper collection roller through a bracket to facilitate the rotation of the paper release roller and the paper collection roller. The paper release roller is used to release paper. After the paper is used in the forming device, the discarded paper is rolled up by the paper collection roller. The second motor is used to drive the rotation of the paper collection roller, and the connecting plate is used to connect the forming device.

[0004] At present, in the process of processing the bottom sealing of paper cups, the raw paper is transported by a paper feeding device, and then the bottom pushing rod is driven to punch the paper on the top upward, and the circular paper piece cut by punching is pushed to the bottom of the cup body for packaging, and then the packaged paper cup is rotated and rolled by rotating the pressing groove to complete the bottom sealing of the paper cup. However, in the actual processing process, due to the certain flexibility of the paper, the paper is easily bent when being punched by the bottom pushing rod, resulting in the irregular shape of the punched cup bottom paper piece, which will reduce the production quality of the paper cup. Utility Model Content

[0005] The utility model aims to solve the problem that in the current process of processing paper cup bottom covers, paper is easily bent during punching, resulting in irregular shapes of punched cup bottom paper sheets, thereby reducing the production quality of paper cups, and proposes a bottom sealing device for disposable paper cup production.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A bottom sealing device for producing disposable paper cups, comprising a paper feeding part and a rotating part and a bottom sealing part installed thereon, and also comprising: a frame body, fixedly connected to the top of the paper feeding part; wherein a cylinder is fixedly connected to the inner side of the frame body, and the output end of the cylinder is fixedly connected to a shell body through a mounting plate; a positioning ring, connected to the top of the shell body through an elastic part 1, and the elastic part 1 is used to support the positioning ring; a top column, connected to the shell body through a driving part, and the driving part is used to drive the top column to rotate; a stamping knife ring, connected to the top column through an elastic part 2, and the elastic part 2 is used to support the stamping knife ring; an ejection hole, opened at the top of the frame body, and when the ejection column moves upward, the ejection column passes through the ejection hole.

[0008] In order to elastically support the positioning ring, preferably, the elastic part 1 includes two support plates, which are respectively fixedly connected to the two sides of the shell; wherein, vertical rod 1 is fixedly connected to both sides of the bottom of the positioning ring, and the vertical rod 1 is slidably connected to the support plate; a spring 1 is sleeved on the vertical rod 1, and the two ends of the spring 1 are respectively fixedly connected to the top of the support plate and the bottom of the positioning ring.

[0009] In order to drive the stamping knife ring to rotate, preferably, the driving part includes: a rotating rod, which is rotatably connected to the inside of the shell; wherein the top end of the rotating rod is fixedly connected to the bottom of the top column, the top column is rotatably connected to the shell, a straight rod is rotatably connected to the shell, one end of the straight rod and the surface of the rotating rod are fixedly connected with mutually meshing bevel gears; the bottom of the positioning ring is fixedly connected with a rack plate, and the straight rod is fixedly connected with a circular gear that meshes with the rack plate.

[0010] In order to provide elastic support for the stamping knife ring, the second elastic part further includes: a connecting plate, which is fixedly connected to the stamping knife ring; wherein, sliding grooves are provided on both sides of the top column, and a vertical rod two is fixedly connected to the inside of the sliding groove, and the connecting plate is slidably connected to the vertical rod two; the connecting plate is slidably connected in the sliding groove, and a spring two is sleeved on the vertical rod two, and the two ends of the spring two are respectively fixedly connected to the inner wall of the sliding groove and the surface of the connecting plate.

[0011] In order to prevent the circular gear from self-rotating, further, a positioning rod is fixedly connected to the rack plate, and a positioning hole is penetrated through the straight rod. When the straight rod moves upward, the bottom end of the positioning rod passes through the positioning hole.

[0012] In order to facilitate folding of the paper sheet when it is pushed out of the ejection hole, further, the ejection hole is conical in shape, and the diameter of the lower port of the ejection hole is greater than the diameter of the upper port.

[0013] Compared with the prior art, the utility model provides a bottom sealing device for disposable paper cup production, which has the following beneficial effects:

[0014] 1. The bottom sealing device for disposable paper cup production starts the cylinder to drive the housing and the positioning ring to move upward, so that the positioning ring presses the paper to be cut against the inner top of the frame, and can position the paper to keep the cutting section of the paper flat, preventing the paper from bending during punching, resulting in irregular shapes of the punched cup bottom paper, thereby improving the production quality of paper cups.

[0015] 2. The bottom sealing device for the production of disposable paper cups drives the housing to move upward by starting the cylinder, so that the circular gear rotates and drives the punching knife ring to rotate. During the rising process, the positioned paper can be rotationally cut. The rotation of the punching knife ring can reduce the friction when cutting the paper, further reduce the deformation and burrs of the paper, so as to obtain a smoother and more precise cutting edge, thereby further improving the production quality of the paper cups.

[0016] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The utility model solves the problem that in the current process of processing the bottom cover of paper cups, paper is easily bent during punching, resulting in irregular shapes of the punched cup bottom paper sheets, thereby reducing the production quality of paper cups. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a first-view structural diagram of a bottom sealing device for disposable paper cup production proposed by the utility model;

[0018] Figure 2 This is a second perspective structural schematic diagram of a bottom sealing device for disposable paper cup production proposed by the utility model;

[0019] Figure 3 A schematic diagram of the partial axonometric structure of a bottom sealing device for disposable paper cup production proposed by the utility model Figure 1 ;

[0020] Figure 4 This is a schematic diagram of the frame cutaway structure of a bottom sealing device for disposable paper cup production proposed by the utility model;

[0021] Figure 5 A schematic diagram of the partial axonometric structure of a bottom sealing device for disposable paper cup production proposed by the utility model Figure 2 ;

[0022] Figure 6 This is a schematic diagram of the positioning ring structure of a bottom sealing device for disposable paper cup production proposed by the utility model;

[0023] Figure 7 This is a schematic diagram of the structure of a punching knife ring of a bottom sealing device for disposable paper cup production proposed by the utility model;

[0024] Figure 8A schematic diagram of the partial axonometric structure of a bottom sealing device for disposable paper cup production proposed by the utility model Figure 3 .

[0025] In the figure: 1. paper feeding part; 2. rotating part; 3. bottom sealing part; 4. frame; 5. cylinder; 6. shell; 7. positioning ring; 71. support plate; 72. vertical rod one; 73. spring one; 8. ejector column; 81. rotating rod; 82. straight rod; 83. bevel gear; 84. rack plate; 85. circular gear; 9. stamping knife ring; 91. slide groove; 92. vertical rod two; 93. connecting plate; 94. spring two; 10. ejection hole; 12. positioning rod; 13. positioning hole. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0028] Example:

[0029] Reference Figure 1-Figure 8 The embodiment of the utility model provides a bottom sealing device for producing disposable paper cups, comprising a paper feeding part 1 and a rotating part 2 and a bottom sealing part 3 installed on the top thereof, and also comprising: a frame 4, fixedly connected to the top of the paper feeding part 1, wherein a cylinder 5 is fixedly connected to the inner side of the frame 4, and an output end of the cylinder 5 is fixedly connected to a shell 6 through a mounting plate; a positioning ring 7, connected to the top of the shell 6 through an elastic part 1, and the elastic part 1 is used to support the positioning ring 7; a top column 8, connected to the shell 6 through a driving part, and the driving part is used to drive the top column 8 to rotate; a stamping knife ring 9, connected to the top column 8 through an elastic part 2, and the elastic part 2 is used to support the stamping knife ring 9; an ejection hole 10, opened at the top of the frame 4, when the top column 8 moves upward, the top column 8 passes through the ejection hole 10, the top of the positioning ring 7 faces the ejection hole 10, and the top of the stamping knife ring 9 faces the positioning ring 7.

[0030] Specifically, when in use, the cylinder 5 is started and drives the shell 6, the positioning ring 7, the top column 8 and the punching knife ring 9 to move upward. First, the positioning ring 7 presses the paper against the inner top of the frame 4 to keep the cut section of the paper flat. Then the shell 6, the top column 8 and the punching knife ring 9 continue to rise, and at the same time drive the circular gear 85 to rise and rotate along the teeth of the rack plate 84. The circular gear 85 rotates to drive the punching knife ring 9 to rotate together. The punching knife ring 9 can rotate and cut the positioned paper during the rising process. The rotation of the punching knife ring 9 can reduce the friction during paper cutting, reduce paper deformation and burrs, and improve the production quality of paper cups. Then the top column 8 continues to rise and pushes the cut cup bottom disc out of the ejection hole 10 and snaps it into the inner bottom of the cup body above the frame 4 to complete the packaging of the paper cup.

[0031] The elastic part 1 includes two support plates 71, which are fixedly connected to the two sides of the shell 6 respectively; wherein, vertical rods 72 are fixedly connected to the two sides of the bottom of the positioning ring 7, and the vertical rods 72 are slidably connected to the support plates 71; a spring 73 is sleeved on the vertical rod 72, and the two ends of the spring 73 are fixedly connected to the top of the support plate 71 and the bottom of the positioning ring 7 respectively.

[0032] Specifically, when in use, when the cylinder 5 drives the housing 6 to move upward, it drives the support plate 71 to move together and compresses the spring 73. When the cylinder 5 drives the housing 6 to move downward, under the elastic force of the spring 73, the positioning ring 7 is restored to its initial state, and the positioning ring 7 can be elastically supported.

[0033] The driving part includes: a rotating rod 81, which is rotatably connected to the inside of the shell 6; wherein, the top end of the rotating rod 81 is fixedly connected to the bottom of the top column 8, the top column 8 is rotatably connected to the shell 6, and a straight rod 82 is rotatably connected to the shell 6, and one end of the straight rod 82 and the surface of the rotating rod 81 are fixedly connected with a bevel gear 83 that meshes with each other; a rack plate 84 is fixedly connected to the bottom of the positioning ring 7, and a circular gear 85 that meshes with the rack plate 84 is fixedly connected to the straight rod 82.

[0034] Specifically, during use, when the shell 6 moves upward, it drives the circular gear 85 to rise and rotate along the teeth of the rack plate 84, and the circular gear 85 rotates and drives the straight rod 82 and the two meshing bevel gears 83 to rotate, while driving the rotating rod 81 and the top column 8 to rotate, thereby driving the stamping knife ring 9 to continue to rotate.

[0035] The second elastic part includes: a connecting plate 93, which is fixedly connected to the stamping knife ring 9; wherein, a slide groove 91 is opened on both sides of the top column 8, and a vertical rod 92 is fixedly connected inside the slide groove 91, and the connecting plate 93 is slidably connected to the vertical rod 92; the connecting plate 93 is slidably connected in the slide groove 91, and a spring 94 is sleeved on the vertical rod 92, and the two ends of the spring 94 are respectively fixedly connected to the inner wall of the slide groove 91 and the surface of the connecting plate 93.

[0036] Specifically, when the stamping knife ring 9 is against the inner top of the frame 4, the top column 8 is driven upward by the shell 6, so that the connecting plate 93 compresses the spring 2 94 in the slide groove 91. When the cylinder 5 drives the shell 6 to move downward, the elastic force of the spring 2 94 restores the stamping knife ring 9 to its initial state, so that the stamping knife ring 9 can be elastically supported.

[0037] The rack plate 84 is fixedly connected with a positioning rod 12 , and the straight rod 82 is penetrated with a positioning hole 13 . When the straight rod 82 moves upward, the bottom end of the positioning rod 12 passes through the positioning hole 13 .

[0038] Specifically, when in use, the circular gear 85 moves upward with the shell 6. When the circular gear 85 disengages from the teeth of the rack plate 84, the positioning rod 12 will synchronously pass through the positioning hole 13 on the straight rod 82. Through the setting of the positioning rod 12 and the positioning hole 13, the circular gear 85 can be positioned to prevent the circular gear 85 from rotating when it disengages from the teeth of the rack plate 84, resulting in the circular gear 85 being unable to engage with the rack plate 84 again.

[0039] The ejection hole 10 has a conical shape, and the diameter of the lower port of the ejection hole 10 is greater than the diameter of the upper port thereof.

[0040] Specifically, with such a design, when the ejector post 8 ejects the cut cup bottom disc from the ejection hole 10, it is convenient to fold the ejected cup bottom disc to facilitate packaging of the cup bottom disc and the cup body.

[0041] Working principle: During the use of the disposable paper cup bottom sealing device, the paper can be passed through the frame 4 and intermittently transmitted through the paper feeding part 1, and the manufactured cup body can be driven to rotate to the ejection hole 10 at the top of the frame 4 by starting the rotating part 2, and then the cylinder 5 is started, and the output end of the cylinder 5 drives the housing 6, the positioning ring 7, the ejector column 8 and the punching knife ring 9 to move upward;

[0042] During the movement, the positioning ring 7 first presses the paper to be cut against the inner top of the frame 4, which can position the paper so that the cutting section of the paper to be cut remains flat, preventing the paper from bending during punching, resulting in an irregular shape of the punched cup bottom paper, thereby improving the production quality of the paper cup;

[0043] At the same time, the housing 6 also drives the support plate 71 to move upward and compress the spring 1 73, so that the housing 6, the top column 8 and the punching knife ring 9 can continue to rise, and at the same time drive the circular gear 85 to rise and rotate along the teeth of the rack plate 84, and the circular gear 85 rotates and drives the straight rod 82 and the two meshing bevel gears 83 to rotate, and at the same time drives the rotating rod 81 and the top column 8 to rotate, thereby driving the punching knife ring 9 to rotate, and the punching knife ring 9 can be used to perform rotational cutting on the positioned paper during the rising process, and the rotation of the punching knife ring 9 can reduce the friction when cutting the paper, further reduce the deformation and burrs of the paper, so as to obtain a smoother and more precise cutting edge, thereby further improving the production quality of the paper cup;

[0044] When the cup bottom disc is punched and cut, the punching knife ring 9 will be against the inner top of the frame 4, and the circular gear 85 will continue to rise with the shell 6 and the top column 8, so that the connecting plate 93 compresses the spring 2 94, and the circular gear 85 will be separated from the teeth of the rack plate 84 and stop rotating, and the punching knife ring 9 will stop rotating synchronously, and then the top column 8 will eject the cut cup bottom disc from the ejection hole 10 and clamp it into the inner bottom of the cup body above the frame 4, thereby completing the packaging of the cup body and cup bottom of the paper cup;

[0045] After the paper cup is packaged, the shell 6 and the top column 8 are driven downward by the cylinder 5. Under the elastic force of the spring 1 73 and the spring 2 94, the positioning ring 7 and the punching knife ring 9 are restored to the initial state so that the bottom of the next cup can be sealed again. Finally, the packaged paper cup is driven to rotate to the next station by the rotating part 2, and the cup body and the cup bottom are heated and rolled and bonded through the sealing bottom 3.

[0046] It should be noted that the paper feeding part 1, the rotating part 2 and the bottom sealing part 3 in this scheme are all existing public technologies and are not the key improvement parts of this scheme. For specific implementation methods, please refer to the comparative document of this scheme "Publication No.: CN214448873U", which will not be elaborated here.

[0047] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A bottom sealing device for producing disposable paper cups, comprising a paper feeding part (1) and a rotating part (2) and a bottom sealing part (3) mounted thereon, characterized in that: Also includes: A frame (4) fixedly connected to the top of the paper feeding portion (1); The inner side of the frame (4) is fixedly connected to a cylinder (5), and the output end of the cylinder (5) is fixedly connected to a housing (6) via a mounting plate; A positioning ring (7) connected to the top of the housing (6) via an elastic portion 1, wherein the elastic portion 1 is used to support the positioning ring (7); A top column (8) is connected to the housing (6) via a driving unit, wherein the driving unit is used to drive the top column (8) to rotate; A stamping knife ring (9) is connected to the top column (8) via a second elastic part, wherein the second elastic part is used to support the stamping knife ring (9); An ejection hole (10) is opened at the top of the frame (4); when the ejection column (8) moves upward, the ejection column (8) passes through the ejection hole (10).

2. A bottom sealing device for disposable paper cup production according to claim 1, characterized in that: The elastic part includes Two support plates (71) are respectively fixedly connected to two sides of the housing (6); Wherein, both sides of the bottom of the positioning ring (7) are fixedly connected with a vertical rod (72), and the vertical rod (72) is slidably connected to the support plate (71); A spring (73) is sleeved on the vertical rod (72), and two ends of the spring (73) are respectively fixedly connected to the top of the support plate (71) and the bottom of the positioning ring (7).

3. The bottom sealing device for disposable paper cup production according to claim 1, characterized in that: The driving unit comprises: A rotating rod (81) rotatably connected to the interior of the housing (6); The top end of the rotating rod (81) is fixedly connected to the bottom of the top column (8), the top column (8) is rotatably connected to the housing (6), a straight rod (82) is rotatably connected to the housing (6), and one end of the straight rod (82) and the surface of the rotating rod (81) are fixedly connected to mutually meshing bevel gears (83); A rack plate (84) is fixedly connected to the bottom of the positioning ring (7), and a circular gear (85) meshing with the rack plate (84) is fixedly connected to the straight rod (82).

4. The bottom sealing device for disposable paper cup production according to claim 1, characterized in that: The second elastic part comprises: A connecting plate (93) fixedly connected to the punching knife ring (9); Wherein, both sides of the top column (8) are provided with a slide groove (91), the interior of the slide groove (91) is fixedly connected with a second vertical rod (92), and the connecting plate (93) is slidably connected to the second vertical rod (92); The connecting plate (93) is slidably connected in the slide groove (91), and the second vertical rod (92) is sleeved with a second spring (94), and the two ends of the second spring (94) are respectively fixedly connected to the inner wall of the slide groove (91) and the surface of the connecting plate (93).

5. The bottom sealing device for disposable paper cup production according to claim 3, characterized in that: A positioning rod (12) is fixedly connected to the rack plate (84), and a positioning hole (13) is formed through the straight rod (82). When the straight rod (82) moves upward, the bottom end of the positioning rod (12) passes through the positioning hole (13).

6. The bottom sealing device for disposable paper cup production according to claim 1, characterized in that: The ejection hole (10) has a conical shape, and the diameter of the lower port of the ejection hole (10) is greater than the diameter of the upper port thereof.

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