A paper cup edge curling preprocessing mechanism

Abstract

The utility model relates to paper cup processing technical field, especially paper cup's edge curl pretreatment mechanism. The utility model discloses bottom plate, top plate, guide rod, shell body, columnar shell, holds and connects the muscle, and top plate is located the top of bottom plate, and guide rod is at least two and is arranged in the both ends of top plate, and bottom plate is connected with top plate through guide rod, and shell body is arranged in top plate, and shell body and top plate are movably connected, so that shell body can independently axial autorotation, shell body includes: columnar shell is arranged in top plate, and the structure of holding and connecting the muscle is wide to the top and narrow to the bottom, and holding and connecting the muscle is located the top of columnar shell, through the cooperation of outward expansion piece, movable connecting rod, lower slide bar and rotatable shell body, the cup mouth rebound problem caused by vertical vertical extrusion in traditional edge curl operation is solved.

Description

Technical Field

[0001] This utility model relates to the field of paper cup processing technology, and in particular to a paper cup edge pretreatment mechanism. Background Technology

[0002] The rim-rolling technology for paper cups refers to the process of mechanically forming an inward or outward curled ring structure (i.e., a rolled edge) at the edge of the cup rim. The core of this process involves applying pressure in a specific direction to the lubricated cup rim using a mold, causing it to plastically deform and curl, and finally setting it through heating or pressure. This technology aims to improve the structural strength, sealing (preventing liquid leakage), and user experience (avoiding cuts) of the cup rim by increasing its thickness and smoothness, while also enhancing the overall aesthetics of the cup.

[0003] However, existing equipment often encounters the following problems during use: In traditional paper cup edge rolling, lubricant is applied to the cup rim and then pressed down by an opening-type pressing mechanism. However, because the pressure between the opening and the cup rim is a direct, vertical pressure, this harsh pressure causes the rolled edge to bounce back during the rolling process, increasing the scrap rate. Utility Model Content

[0004] The main purpose of this utility model is to provide a pre-treatment mechanism for the edge rolling of paper cups. This utility model aims to solve the problem that in the traditional paper cup edge rolling process, after applying lubricating oil to the cup rim, the edge is directly pressed down by a pressing mechanism with an opening. However, because the pressure between the opening and the cup rim is a direct vertical pressure, this harsh pressure causes the rolled edge to rebound during the rolling process, increasing the scrap rate. Through the synergistic action of the outer expansion component, the movable connecting rod, the sliding rod, and the rotatable outer shell, the problem of cup rim rebound caused by vertical pressure in the traditional edge rolling process is solved.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A paper cup edge-rolling pretreatment mechanism, comprising: Base plate; A top plate, which is located directly above the bottom plate; Guide rods, at least two of which are inserted through both ends of the top plate, and the bottom plate is connected to the top plate via the guide rods; The outer shell is inserted through the top plate and is movably connected to the top plate, so that the outer shell can rotate independently axially. The outer casing includes: A columnar shell, the columnar shell being inserted through the top plate; A container, which has a structure that is wider at the top and narrower at the bottom, is located directly below the columnar shell; The connecting ribs are provided in a set. Each connecting rib is connected to the bottom end of the columnar shell at the top and to the container at the bottom. The connecting ribs are arranged at equal intervals around the outer periphery of the top of the container.

[0006] Also includes: A column, located inside the outer shell, with its bottom end connected to the bottom surface of the inner wall of the container; The slide groove is provided in multiple ways, and the multiple slide grooves are formed on the side of the column. The number of slide grooves corresponds to the number of gaps between the connecting ribs. The sliding rods are provided in a number corresponding to the slide grooves, with each sliding rod located in one slide groove and the sliding rods slidably connected to the slide grooves. A connecting groove is formed in the shaft of each of the sliding rods; An expansion member, the cross-section of which is triangular and the expansion member is vertically arranged, each of which passes through the gap between two connecting ribs; A movable link, one end of which is movably connected to the vertical surface of one of the extended members, and the other end of which is movably connected to the connecting groove of one of the sliding rods.

[0007] Also includes: A linkage plate is located on the top surface of the column and is fixedly connected to the top of all the sliding rods. A downward pressing cylinder is placed upside down on the outer shell, and the output end of the downward pressing cylinder is connected to the linkage plate; A toothed ring, which is fitted onto the shell body of the outer casing; A drive motor is mounted on the top plate; A drive gear is mounted on the output end of the drive motor and meshes with the gear ring. A reset plate, located between the bottom plate and the top plate; An opening is provided on the reset plate and is located directly below the container. At least two push rods are fixedly connected to the bottom surface of the reset plate; A base rod, which is fixedly connected to the bottom surface of the base plate; A reset spring, the top end of which is connected to the top rod, and the bottom end of which is connected to the bottom rod.

[0008] The number of connecting ribs is multiple, and the connecting ribs are arranged at equal intervals to form the intervals between the connecting ribs.

[0009] The number of sliding rods is the same as the number of sliding grooves, and each sliding rod is slidably engaged with one sliding groove.

[0010] The number of movable links corresponds to the number of the expansion members, and each movable link connects to one expansion member and one sliding rod.

[0011] The outwardly expanding member is inserted through the gap between the connecting ribs, and the hypotenuse of the triangular cross-section of the outwardly expanding member faces outward.

[0012] The top plate is parallel to the bottom plate.

[0013] Compared with existing technologies, the beneficial effects of this utility model are as follows: This utility model solves the problem of cup rim rebound caused by vertical compression in traditional edge-rolling operations through the synergistic action of the outward expansion component, movable connecting rod, sliding rod, and rotatable outer shell. Specifically, the downward-pressing cylinder drives the sliding rod downward, which in turn pushes the outward expansion component to expand radially along the connecting rib intervals via the movable connecting rod. Its inclined structure performs a progressive outward pre-treatment of the cup rim. Subsequently, the drive motor rotates the outer shell, causing the outward expansion component to act evenly on the entire circumference of the cup rim, forming a pre-outward profile. This pre-treatment causes the cup rim material to undergo plastic extension, avoiding an increase in scrap rate due to toughness rebound during subsequent edge-rolling. Attached Figure Description

[0014] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the specific embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof.

[0015] Figure 1 This is a schematic diagram of the overall shape of the present utility model.

[0016] Figure 2 This is a three-dimensional schematic diagram of the present invention.

[0017] Figure 3 This is a structural diagram of the internal structure of the outer shell of this utility model.

[0018] Figure 4 This is a side view of the column of this utility model.

[0019] Figure 5 This is a schematic cross-sectional view of the column of this utility model.

[0020] The following are the labeling elements in the diagram: 1. Base plate; 2. Top plate; 3. Guide rod; 4. Outer shell; 41. Columnar shell; 42. Container; 43. Connecting rib; 5. Column; 6. Slide groove; 7. Slide rod; 8. Connecting groove; 9. Outer expansion part; 10. Movable connecting rod; 11. Linkage plate; 12. Downward pressing cylinder; 13. Gear ring; 14. Drive motor; 15. Drive gear; 16. Reset plate; 17. Opening; 18. Top rod; 19. Bottom rod; 20. Reset spring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] like Figure 1-5 As shown, this utility model provides a paper cup edge-rolling pretreatment mechanism, which includes a bottom plate 1, a top plate 2, a guide rod 3, an outer shell 4, a columnar shell 41, a holding component 42, and a connecting rib 43.

[0024] The top plate 2 is located directly above the bottom plate 1; the top plate 2 is parallel to the bottom plate 1, and at least two guide rods 3 are inserted through both ends of the top plate 2. The bottom plate 1 is connected to the top plate 2 through the guide rods 3; this prevents deviation or tilting during operation and ensures the linearity and stability of the mechanism's movement. The outer shell 4 is inserted through the top plate 2 and is movably connected to the top plate 2, allowing the outer shell 4 to rotate independently axially. The outer shell 4 includes a cylindrical shell 41 inserted through the top plate 2, and a container 42 with a structure that is wider at the top and narrower at the bottom, located directly below the cylindrical shell 41; its design is intended to accommodate the paper cup opening and provide a conical guide surface, allowing for smooth entry and positioning of the paper cup. The shape of being wider at the top and narrower at the bottom helps in the initial alignment of the cup opening, providing an operational basis for the outward expansion component 9.

[0025] In this invention, a set of connecting ribs 43 is provided. Each connecting rib 43 is connected at its top to the bottom end of the columnar shell 41, and at its bottom to the holding component 42. The connecting ribs 43 are arranged equidistantly around the outer periphery of the top end of the holding component 42. There are multiple connecting ribs 43, and their equidistant arrangement forms intervals between them, providing a channel for the passage and movement of the expanding component 9. In this invention, the column 5 is located inside the outer shell 4, and the bottom end of the column 5 is connected to the bottom surface of the inner wall of the container 42. Multiple sliding grooves 6 are provided, and multiple sliding grooves 6 are opened on the side of the column 5. The number of sliding grooves 6 corresponds to the number of gaps between the connecting ribs 43. The purpose of this design is to provide a sliding track for the sliding rod 7, restrict the movement direction of the sliding rod 7, ensure that the sliding rod 7 can only move in the vertical direction, and avoid radial deviation. The number of sliding rods 7 corresponds to the number of sliding grooves 6, and each sliding rod 7 is located in one sliding groove 6. The sliding rod 7 and the sliding groove 6 are slidably connected. The number of sliding rods 7 is the same as the number of sliding grooves 6, and each sliding rod 7 is slidably engaged with one sliding groove 6. A connecting groove 8 is opened on the rod body of each sliding rod 7.

[0026] In this invention, the outward expansion member 9 has a triangular cross-section and is vertically arranged. Each outward expansion member 9 passes through the gap between two connecting ribs 43. The hypotenuse of the triangular cross-section of the outward expansion member 9 faces outward. Utilizing the outward-facing geometric feature of the triangular hypotenuse, it interacts with the gap between the connecting ribs 43 during downward movement, forcing it to expand outward; it directly contacts the rim of the paper cup, causing the rim to partially flare outward through the pressure of the inclined surface; during upward movement, it retracts and returns to its original position by contacting the edge of the gap with the hypotenuse that is narrower at the top and wider at the bottom. One end of the movable connecting rod 10 is movably connected to the vertical surface of one outward expansion member 9, and the other end of the movable connecting rod 10 is movably connected to the connecting groove 8 of one sliding rod 7. The number of movable connecting rods 10 corresponds to the number of outward expansion members 9. Each movable connecting rod 10 connects one outward expansion member 9 and one sliding rod 7, and its function is to convert the vertical linear motion of the sliding rod 7 into the radial motion of the outward expansion member 9, realizing the opening and closing of the outward expansion member 9. In this utility model, the linkage plate 11 is located on the top surface of the column 5, and the linkage plate 11 is fixedly connected to the top of all the sliding rods 7. The pressing cylinder 12 is placed upside down on the outer shell 4, and the output end of the pressing cylinder 12 is connected to the linkage plate 11. The gear ring 13 is sleeved on the shell body of the outer shell 4. The drive motor 14 is set on the top plate 2, and the drive gear 15 is installed on the output end of the drive motor 14. The drive gear 15 meshes with the gear ring 13. The reset plate 16 is located between the bottom plate 1 and the top plate 2. The opening 17 is opened on the reset plate 16 and is located directly below the container 42. At least two top rods 18 are fixedly connected to the bottom surface of the reset plate 16. The bottom rod 19 is fixedly connected to the bottom surface of the bottom plate 1. The top end of the reset spring 20 is connected to the top rod 18, and the bottom end of the reset spring 20 is connected to the bottom rod 19. When the reset plate 16 is pressed down, the rebound force of the reset spring 20 causes the reset plate 16 to move up, thereby lifting the paper cup to contact the container 42, and resetting after the outward flipping operation.

[0027] It should be noted that, in use, the paper cup edge-rolling pretreatment mechanism designed in this utility model, when the reset plate 16 is pressed down, the top rod 18 will squeeze the reset spring 20 to generate a rebound force, placing the paper cup with rolled edges into the opening 17. The reset spring 20 drives the reset plate 16 to move upward, and the container 42 will enter the cup opening. The spacing between the connecting ribs 43 will be flush with the cup opening. The pressing cylinder 12 is activated, and the output end of the pressing cylinder 12 presses down to drive the linkage plate 11. The linkage plate 11 drives each sliding rod 7 to move downward in the slide groove 6. The moving sliding rod 7 will drive the movable connecting rod to move downward. As rod 10 and the outward expansion member 9 move downwards, once the outward expansion member 9 reaches the gap between the connecting ribs 43, it will slide outwards due to its own inclined surface. Because the diameter of the outward expansion member 9 is wider than the cup rim, it directly abuts against the cup rim. The part of the cup rim that is abutted is slightly folded outwards by the inclined surface of the outward expansion member 9, which is wider at the top and narrower at the bottom. Finally, the drive motor 14 is started, and the drive gear 15 is driven to rotate the linkage gear ring 13, which in turn causes the gear ring 13 to rotate axially on the outer shell 4. The rotating outer shell 4 causes all the outward expansion members 9 to rotate together, thus increasing the outward folded part to the entire cup rim. After the cup rim of the paper cup is folded outwards in advance, it is equivalent to having a buffer before rolling the rim, so that the folding of the rim will not be abruptly vertical, avoiding excessive toughness and rebound. Then, the output end of the lowering cylinder 12 is retracted, the linkage plate 11 moves up and drives the sliding rod 7, which in turn drives the outer expansion part 9 to move up. The sloping part of the outer expansion part 9, which is narrow at the top and wide at the bottom, will be squeezed by the gap between the connecting ribs 43. In addition, the lifting movable connecting rod 10 gradually tends to be vertical and retracts inward, and then retracts into the outer shell 4, waiting for the next paper cup to be turned over.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations may be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A paper cup edge-rolling pretreatment mechanism, characterized in that, include: Base plate (1); Top plate (2), which is located directly above the bottom plate (1); Guide rod (3), at least two of the guide rod (3) are inserted through both ends of the top plate (2), and the bottom plate (1) is connected to the top plate (2) through the guide rod (3); The outer shell (4) is inserted through the top plate (2) and the outer shell (4) is movably connected to the top plate (2), so that the outer shell (4) can rotate independently axially. The outer shell (4) includes: A columnar shell (41) is inserted through the top plate (2). The container (42) has a structure that is wider at the top and narrower at the bottom, and the container (42) is located directly below the columnar shell (41); A set of connecting ribs (43) is provided. Each connecting rib (43) is connected to the bottom end of the columnar shell (41) at the top and to the container (42) at the bottom. The connecting ribs (43) are arranged at equal intervals around the outer periphery of the top of the container (42).

2. The paper cup edge-rolling pretreatment mechanism according to claim 1, characterized in that, Also includes: The column (5) is located inside the outer shell (4), and the bottom end of the column (5) is connected to the bottom surface of the inner wall of the container (42). Slide groove (6), multiple slide grooves (6) are provided, multiple slide grooves (6) are opened on the side of the column (5), and the number of slide grooves (6) corresponds to the number of gaps between the connecting ribs (43); The sliding rod (7) is provided in a number corresponding to the slide groove (6), and each sliding rod (7) is located in one slide groove (6). The sliding rod (7) is slidably connected to the slide groove (6). A connecting groove (8) is formed in the body of each of the sliding rods (7); Outer expansion member (9), the cross section of the outer expansion member (9) is triangular, and the outer expansion member (9) is vertically arranged, and each outer expansion member (9) passes through the gap between two connecting ribs (43); The movable link (10) has one end movably connected to the vertical surface of an expansion member (9), and the other end movably connected to the connecting groove (8) of a sliding rod (7).

3. The paper cup edge-rolling pretreatment mechanism according to claim 2, characterized in that, Also includes: Linkage plate (11), the linkage plate (11) is located on the top surface of the column (5), and the linkage plate (11) is fixedly connected to the top of all the sliding rods (7); A downward pressing cylinder (12) is placed upside down on the outer shell (4), and the output end of the downward pressing cylinder (12) is connected to the linkage plate (11); Toothed ring (13), the toothed ring (13) is sleeved on the shell body of the outer shell (4); A drive motor (14) is mounted on the top plate (2); A drive gear (15) is mounted on the output end of the drive motor (14) and meshes with the gear ring (13). A reset plate (16) is located between the bottom plate (1) and the top plate (2); An opening (17) is provided on the reset plate (16) and is located directly below the container (42); At least two of the top rods (18) are fixedly connected to the bottom surface of the reset plate (16); The bottom rod (19) is fixedly connected to the bottom surface of the bottom plate (1); A reset spring (20) is provided, with its top end connected to the top rod (18) and its bottom end connected to the bottom rod (19).

4. The paper cup edge-rolling pretreatment mechanism according to claim 1, characterized in that, The number of the connecting ribs (43) is multiple, and the connecting ribs (43) are arranged at equal intervals to form the intervals between the connecting ribs (43).

5. The paper cup edge-rolling pretreatment mechanism according to claim 2, characterized in that, The number of sliding rods (7) is the same as the number of sliding grooves (6), and each sliding rod (7) is in sliding engagement with one sliding groove (6).

6. The paper cup edge-rolling pretreatment mechanism according to claim 2, characterized in that, The number of movable links (10) corresponds to the number of expansion members (9), and each movable link (10) connects to an expansion member (9) and a sliding rod (7).

7. The paper cup edge-rolling pretreatment mechanism according to claim 2, characterized in that, The expansion member (9) passes through the gap between the connecting ribs (43), and the hypotenuse of the cross-sectional triangle of the expansion member (9) is set outward.

8. The paper cup edge-rolling pretreatment mechanism according to claim 2, characterized in that, The top plate (2) is parallel to the bottom plate (1).

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