A cup bottom paper cutting and feeding mechanism for a high-speed paper cup machine

Abstract

This invention discloses a cup bottom paper feeding mechanism for a high-speed paper cup machine, including a machine housing. The machine housing is equipped with a feeding mechanism I and a feeding mechanism II for fan-shaped paper sheets and rolls of paper. A matching cup body forming mechanism is installed at feeding mechanism I, and a matching cup bottom forming mechanism is installed at feeding mechanism II. The knurling method employs a secondary reverse knurling process and the addition of a waterproof membrane. The traditional equidistantly distributed arc-shaped indentations are replaced with equidistantly distributed X-shaped indentations, thereby increasing the connection strength between the cup bottom and the cup body and enhancing the waterproofing effect. The cup bottom undergoes a secondary forming process, including arc surface forming and skeleton groove forming. The skeleton groove improves the overall stability and strength of the cup bottom while ensuring that the arc surface is not compressed into a flat surface by the internal liquid filling, maintaining the conical shape of the cup bottom. At this point, the gravitational pressure of the liquid is dispersed along the conical slope, reducing the pressure on the center point of the bottom.

Description

Technical Field

[0001] This invention belongs to the field of paper cup machines, and more specifically, relates to a cup bottom paper cutting and feeding mechanism for a high-speed paper cup machine. Background Technology

[0002] Paper cups are paper containers made from chemically processed wood pulp paper (white cardboard) through mechanical processing and bonding. They are cup-shaped and can be used for frozen foods and hot drinks. Paper cup machines are machines that automatically process fan-shaped paper into paper cups. They are safe, hygienic, lightweight, and convenient, making them ideal equipment for hotels, restaurants, milk tea shops, and cold drink shops.

[0003] The work of a paper cup machine starts with automatic paper feeding, and then produces finished paper cups through continuous processes such as bottom punching, sealing, heating, bottom flipping, knurling, edge rolling, and cup unloading.

[0004] Chinese Patent CN114571787A discloses a cup bottom forming mold for a high-speed paper cup machine, including a machine body with a turntable rotatably connected to the machine body. Multiple sets of punches are arranged on the turntable. From top to bottom, the side wall of the machine body is provided with a bending mechanism, a paper guiding mechanism, and a punching mechanism. The paper guiding mechanism guides the cup paper, the punching mechanism punches the cup paper located on the paper guiding mechanism and feeds the punched cup bottom paper into the punches, and the bending mechanism bends the edge of the cup bottom paper. The bending mechanism includes a slide that slides on the machine body, a shaft tube that rotates on the slide, a collar fixed on the shaft tube, and a guide sleeve fixed on the machine body. This invention, by rotating and lowering the concave plate, causes the edge of the cup bottom paper to bend in the same clockwise direction outside the circumference of the punching protrusion, thereby effectively avoiding uneven wrinkles caused by bending the edge of the bottom paper and thus effectively preventing any impact on the sealing of the paper cup.

[0005] The above technical solution has the following drawbacks:

[0006] 1. The traditional eccentric knurling method is still used to press and fix the cup bottom and cup body together. The connection effect between the cup bottom and cup body still depends on the adhesion of the PE film and the pressing strength of the unidirectional knurling. If the preheating is insufficient or the storage time is too long, the strength of the cup bottom will decrease.

[0007] 2. For traditional flat cup bottoms, when storing water, the gravitational pressure of the water inside acts on the middle of the cup bottom, causing the cup bottom to bear too much weight, which puts a certain test on its connection strength, and thus causes the bottom to detach. Even for cup bottoms with curved surfaces, since their support strength is determined by the strength of the cup bottom itself, they will still be flat due to the gravity of the water when filled with water.

[0008] 3. When using paper cups to hold liquids with low density, the PE film on the surface in contact with the liquid may dissolve and seep through to the bottom of the cup, causing leakage. Summary of the Invention

[0009] To address the above deficiencies, this invention provides a cup bottom paper cutting and feeding mechanism for a high-speed paper cup machine, comprising a machine housing. The machine housing is equipped with a feeding mechanism I and a feeding mechanism II for fan-shaped paper sheets and rolls of paper. A matching cup body forming mechanism is installed at feeding mechanism I, and a matching cup bottom forming mechanism is installed at feeding mechanism II. A finished product discharging mechanism for discharging finished paper cups is installed at the machine housing. A secondary cutting mechanism, matching the cup bottom forming mechanism, is also installed at the machine housing. The secondary cutting mechanism includes a matching pressure-regulating mechanism and a grooving mechanism. A feeding mechanism is provided between the pressure-regulating mechanism and the grooving mechanism. An equipment compartment is fixed to the upper surface of the machine housing, and the pressure-regulating mechanism, grooving mechanism, and feeding mechanism are respectively installed at the top, bottom, and middle of the equipment compartment.

[0010] Furthermore, the grooving mechanism includes a sector plate II, and a cylinder II is fixed to the inner top wall of the equipment compartment. The output end of the cylinder II is fixedly connected to the sector plate II. The inside of the sector plate II is inlaid with a secondary knurling cylinder and a forming cylinder that are compatible with the two molds. Support plates are fixed to both sides of the bottom of the sector plate II through connecting rods. A cylinder IV is fixed to the bottom of the support plate. The output end of the cylinder IV is fixedly connected to the linkage mechanism inside the forming cylinder for forming.

[0011] The above technical solution enables the adjustment of the position of sector plate II, which facilitates the subsequent matching of the spacing between sector plates I to adapt to paper cups of different lengths, ensuring that sector plates I and II are located at the upper and lower ends of the paper cup to be processed.

[0012] Furthermore, the pressure regulating mechanism includes a sector plate I, a mounting frame is fixed to the top of the equipment compartment, a cylinder III is fixed to the bottom of the mounting frame, a cylinder I is fixed to the inner top wall of the equipment compartment, the output end of the cylinder I is connected to the sector plate I, two molds adapted to paper cups are installed inside the sector plate I, a stabilizing groove is provided at the bottom of the mold located at the top of the secondary knurling cylinder, the output end of the cylinder III passes through the top of the equipment compartment and is fixed to a linkage plate, and two linkage rods adapted to the molds are fixed to the bottom of the linkage plate.

[0013] The above technical solution is used to press down the bottom of the paper cup after the bottom knurling has been completed. The upward-moving forming seat is used to form the skeleton groove at the bottom of the cup. The cylinder III is used to adjust the position of the fan plate I.

[0014] Furthermore, there are two feeding mechanisms, each installed in a rectangular slot on the inner wall of the equipment compartment. The inner wall of the rectangular slot has a sliding cavity, and the inner wall of the sliding cavity has a toothed groove. Each toothed groove is meshed with a matching gear. The two gears are connected to a feeding frame located inside the sliding cavity through bearings. The middle part of the feeding frame is connected to a feeding roller through a drive shaft, and the bottom of the feeding frame is driven by an electric push rod installed on the bottom wall of the sliding cavity.

[0015] The above technical solution employs a retractable structure, which extends for feeding and conveying when additional geomembrane needs to be pressed, and retracts when no additional geomembrane is needed, thus providing greater adaptability.

[0016] Furthermore, the linkage mechanism includes a forming seat adapted to the bottom of the cup. The upper surface of the forming seat is arc-shaped and fixed with a cross-shaped stabilizing member. The stabilizing member is adapted to the stabilizing groove. A movable plate that fits against the inner wall of the forming cylinder is fixed to the outer ring of the forming seat. Slider blocks are fixed on both the left and right sides of the movable plate. The two sliders are respectively engaged in the grooves opened in the inner side wall of the forming cylinder. The bottom ends of the two sliders are respectively connected to the inner bottom wall of the groove through spring I. A through groove is opened at the bottom of the forming cylinder. An extension layer is provided in the inner ring of the through groove. The push plate fixed at the bottom of the forming seat is limited by the extension layer. A cylinder V is fixed at the bottom of the support plate. The output end of the cylinder V passes through the support plate and is connected to the push plate.

[0017] The above technical solution enables the forming of a skeleton groove in the bottom of the molded paper cup, thereby increasing the load-bearing capacity and stability of the bottom and preventing it from becoming flat under pressure when filled with water, thus affecting the overall stability.

[0018] Furthermore, a suction and blowing air pump is installed on the inner bottom wall of the equipment compartment. The output end of the suction and blowing air pump is connected to the interior of the molding seat through a ventilation hose. The ventilation hose is limited by a positioning component embedded in the push plate. An electric heating wire is fixed inside the molding seat. Several interconnected ventilation holes for ventilation are opened on the top of the molding seat and the inner wall of the stabilizing component.

[0019] The above technical solution uses air blowing to conduct heat, which softens the additionally pressed film, making it easier to fit with the skeleton groove. At the same time, it also softens the bottom of the cup, preventing damage when the bottom of the cup comes into contact with the stabilizer during winter use. By sucking air, the separation stage after the skeleton groove is formed is ensured, preventing it from being affected by the adhesion of the top mold and affecting subsequent operations.

[0020] Furthermore, each branch end of the stabilizer is triangular, with the ridge end located at the top and forming an arc surface.

[0021] The above technical solution allows for the formation of a skeleton groove without causing penetration when the bottom of the cup is pressed due to excessively sharp edges.

[0022] Furthermore, the mold is movably connected to the sector plate I. The sector plate I has a movable groove for the mold to move up and down. The inner wall of the movable groove is inlaid with positioning balls that are evenly distributed. A reset seat is fixedly sleeved on the top of the mold. The bottom end of the reset seat is connected to the upper surface of the sector plate I through springs II arranged in a ring array. The outer ring of the reset seat has positioning grooves that engage with each positioning ball.

[0023] The above technical solutions ensure that the mold can be pressed down and spring back to its original position smoothly.

[0024] Furthermore, the cup bottom forming mechanism is located at the rectangular groove, and the pressure fixing mechanism and the grooving mechanism are located on the upper and lower sides of the cup bottom forming mechanism, respectively.

[0025] The above technical solution ensures that the paper cup after traditional bottom knurling can be placed between the pressure fixing mechanism and the grooving mechanism for secondary knurling and skeleton groove forming.

[0026] Furthermore, the knurling direction of the secondary knurling cylinder is opposite to that of the cup bottom forming mechanism.

[0027] The above technical solution involves reverse knurling the traditional knurling creases to create X-shaped creases, which increases the connection between the paper cup and the bottom of the cup. At the same time, an additional waterproof membrane can be pressed onto the bottom of the cup.

[0028] Compared with the prior art, the present invention has the following advantages:

[0029] 1. The knurling process adopts a secondary reverse knurling treatment, which transforms the traditional evenly distributed arc-shaped indentations into evenly distributed X-shaped indentations, thereby increasing the connection strength between the cup bottom and the cup body. During this process, if an additional geomembrane is applied, it will also be pressed and fixed to make its adhesion to the cup bottom even stronger.

[0030] 2. The cup bottom undergoes a secondary molding process, including arc surface molding and skeleton groove molding. The skeleton groove can improve the overall stability and strength of the cup bottom, while ensuring that the arc surface will not be compressed into a flat surface by the liquid inside, thus maintaining the conical shape of the cup bottom. At this time, the gravitational pressure of the liquid will be dispersed along the inclined surface of the cone, reducing the pressure on the center point of the bottom. Moreover, the conical bottom can also increase the contact area of ​​the paper cup, making it more stable on the table. When picking up and squeezing, the presence of the skeleton groove also makes it less likely for the cup bottom to deform.

[0031] 3. When storing liquids with low density, an additional geomembrane can be added to the bottom of the cup to prevent the PE film at the bottom of the cup from dissolving and easily seeping through the bottom of the cup, thus forming a secondary geomembrane function. Attached Figure Description

[0032] Figure 1 This is a perspective view of the present invention.

[0033] Figure 2 This is a perspective view of the equipment compartment in this invention.

[0034] Figure 3 This is a cross-sectional view of the forming cylinder in this invention.

[0035] Figure 4 This is a cross-sectional view of the movable groove in this invention.

[0036] Figure 5 This is a cross-sectional view of the rectangular groove in the equipment compartment of the present invention from the side.

[0037] Figure 6 This is a perspective view of the molding base in this invention.

[0038] Figure 7 This is a cross-sectional view of a single branch end of the stabilizer in this invention.

[0039] Figure 8 This is a schematic diagram of the traditional knurling and embossing on the bottom of a cup.

[0040] Figure 9 This is a schematic diagram of the secondary reverse embossing and marking on the bottom of the cup according to the present invention.

[0041] In the diagram: 1. Chassis; 4. Cup bottom forming mechanism; 5. Cup body forming mechanism; 6. Equipment compartment; 61. Pressure regulating mechanism; 611. Sector plate I; 612. Mounting bracket; 613. Cylinder III; 614. Mold; 615. Stabilizing groove; 616. Linkage rod; 617. Positioning ball; 618. Positioning groove; 619. Reset seat; 62. Grooving mechanism; 621. Sector plate II; 622. Forming cylinder; 6221. Slide groove; 6222. Slider; 6223. Spring I; 62 24. Moving plate; 6225. Forming seat; 6226. Heating wire; 6227. Extension layer; 6228. Positioning component; 6229. Push plate; 623. Secondary knurling cylinder; 624. Support plate; 625. Cylinder V; 63. Feeding mechanism; 631. Sliding cavity; 632. Electric push rod; 633. Feeding rack; 634. Gear groove; 635. Gear; 636. Bearing; 637. Drive shaft; 638. Feeding roller; 64. Suction and blowing air pump; 71. Stabilizer; 72. Vent hole. Detailed Implementation

[0042] To facilitate understanding of the present invention, the apparatus of the present invention will now be described more fully with reference to the accompanying drawings. Embodiments of the apparatus are shown in the drawings. However, the apparatus can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of the present invention more thorough and complete.

[0043] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "configuration" should be interpreted broadly. For example, they can refer to a fixed connection or configuration, a detachable connection or configuration, or an integral connection or configuration. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0044] Example

[0045] like Figure 1-9 As shown, this embodiment provides a cup bottom paper cutting and feeding mechanism for a high-speed paper cup machine, including a machine housing 1. The machine housing 1 is equipped with a feeding mechanism I and a feeding mechanism II for fan-shaped paper sheets and roll paper (the structure is the same as that of the existing high-speed paper cup machine, driven by a motor, so that the cup body paper cutting and cup bottom paper cutting are conveyed to the cup body forming mechanism 5 and the cup bottom forming mechanism 4 for subsequent operations). A matching cup body forming mechanism 5 is installed at feeding mechanism I, and a cup bottom forming mechanism 4 matching the cup body forming mechanism 5 is installed at feeding mechanism II (the structure is the same as that of the existing high-speed paper cup machine. The cup body forming mechanism 5 cuts, folds, and heat-presses the cup body paper through cutting, hot pressing, and conveying mechanisms and then conveys it to the top of the cup bottom forming mechanism 4. The cup bottom forming mechanism 4 cuts the cup bottom paper through cutting, hot pressing, and eccentric wheel knurling mechanisms and then conveys it to the bottom of the cup body. Through hot pressing and eccentric wheel pressing, the cup bottom and the cup body are fixed and formed. At the same time, the cup mouth is folded in the subsequent operation).

[0046] The cup bottom forming mechanism 4 is located in the rectangular groove, and the constant pressure mechanism 61 and the grooving mechanism 62 are located on the upper and lower sides of the cup bottom forming mechanism 4, respectively. This ensures that the secondary reverse knurling process, the secondary forming process of the cup bottom (arc surface forming and skeleton groove forming), and the process of adding an extra film are performed after the cup body and cup bottom forming and before the formed paper cup is discharged. A finished product discharge mechanism for discharging finished paper cups is installed at the machine housing 1 (the structure is the same as that of the existing high-speed paper cup machine, and the discharge work is completed by stacking the formed paper cups or vacuum tube extraction). A secondary feeding mechanism adapted to the cup bottom forming mechanism 4 is installed at the machine housing 1. The secondary feeding mechanism includes a compatible constant pressure mechanism 61 and a grooving mechanism 62. A feeding mechanism 63 is provided between the constant pressure mechanism 61 and the grooving mechanism 62. An equipment compartment 6 is fixed on the upper surface of the machine housing 1. The constant pressure mechanism 61, the grooving mechanism 62, and the feeding mechanism 63 are respectively installed at the top, bottom, and middle of the equipment compartment 6.

[0047] The constant pressure mechanism 61 includes a sector plate I 611. A mounting bracket 612 is fixed to the top of the equipment compartment 6, and a cylinder III 613 is fixed to the bottom of the mounting bracket 612. A cylinder I is fixed to the inner top wall of the equipment compartment 6. The output end of cylinder I is connected to the sector plate I 611. Two molds 614 adapted to the paper cup are installed inside the sector plate I 611 (the molds 614 are the same as the molds in the cup body forming mechanism, used to fill the inside of the cup body, apply pressure to the bottom and top of the cup, and can completely fit the cup wall, preventing it from...). During the secondary molding process, deformation occurs. The bottom of the mold 614 located at the top of the secondary knurling cylinder 623 is provided with a stabilizing groove 615. The output end of the cylinder III 613 passes through the top of the equipment compartment 6 and is fixed with a linkage plate. The bottom of the linkage plate is fixed with two linkage rods 616 that are compatible with the mold 614. The cylinder III 613 drives the linkage plate to move the two linkage rods 616 downward, thereby driving the two molds 614, thus realizing the knurling and molding operations of the secondary knurling cylinder 623 and the molding cylinder 622. The mold 614 is movably connected to the sector plate I611. The sector plate I611 has a movable groove for the mold 614 to move up and down. The inner wall of the movable groove is inlaid with equidistant positioning balls 617. The top of the mold 614 is fixedly fitted with a reset seat 619. The bottom end of the reset seat 619 is connected to the upper surface of the sector plate I611 through springs II8 arranged in a ring array. The springs II8 realize the springback reset function of the mold 614 in preparation for the next downward movement. The outer ring of the reset seat 619 has positioning grooves 618 that engage with each positioning ball 617 to ensure the movable connection between the mold 614 and the sector plate I611.

[0048] The grooving mechanism 62 includes a sector plate II 621. A cylinder II is fixed to the inner top wall of the equipment compartment 6. The output end of the cylinder II is fixedly connected to the sector plate II 621. The inside of the sector plate II 621 is embedded a secondary knurling cylinder 623 and a forming cylinder 622 that are compatible with the two molds 614. The secondary knurling cylinder 623 has the opposite knurling direction to the cup bottom forming mechanism 4. The knurling structure of the secondary knurling cylinder 623 is the same as that of the cup bottom forming mechanism 4. The knurling at the connection between the cup bottom and the cup body is achieved by an eccentric wheel. The difference is that the eccentric wheel moves in the opposite direction to ensure that the equally distributed arc-shaped indentations are applied to the secondary knurling indentations in an equally distributed X-shaped indentation, thereby increasing the connection strength between the cup bottom and the cup body (e.g., Figure 8 and Figure 9 (As shown). Support plates 624 are fixed to both sides of the bottom of the fan-shaped plate II 621 by connecting rods. Cylinder IV is fixed to the bottom of the support plate 624. The output end of cylinder IV is fixedly connected to the linkage mechanism inside the forming cylinder 622 for forming.

[0049] The linkage mechanism includes a forming seat 6225 adapted to the bottom of the cup. The upper surface of the forming seat 6225 is arc-shaped and fixed with a cross-shaped stabilizing member 71. The stabilizing member 71 is adapted to the stabilizing groove 615. Each branch end of the stabilizing member 71 is triangular, and the edge end is located at the top and is arc-shaped, so as to form the skeleton groove of the bottom of the formed paper cup, thereby increasing the load-bearing capacity and stability of the bottom of the cup, thus preventing the bottom of the cup from being compressed into a flat surface when filled with water, which would affect the overall stability. At the same time, the arc-shaped design can form the skeleton groove while preventing the bottom of the cup from being penetrated due to the edge end being too sharp when applying pressure to the bottom of the cup during the forming process. A movable plate 6224 is fixed to the outer ring of the molding base 6225 and fits against the inner wall of the molding cylinder 622. Slider 6222 is fixed on both the left and right sides of the movable plate 6224. The two sliders 6222 are respectively engaged in the grooves 6221 opened in the inner side wall of the molding cylinder 622. The bottom ends of the two sliders 6222 are respectively connected to the inner bottom wall of the groove 6221 through springs I 6223. A through groove is opened at the bottom of the molding cylinder 622. An extension layer 6227 is provided in the inner ring of the through groove. The push plate 6229 fixed at the bottom of the molding base 6225 is limited by the extension layer 6227. A cylinder V625 is fixed at the bottom of the support plate 624. The output end of the cylinder V625 passes through the support plate 624 and is connected to the push plate 6229 to realize the movement support of the molding base 6225. It can make contact with the top mold 614 to realize the molding process of the skeleton groove.

[0050] A suction and blowing air pump 64 is installed on the inner bottom wall of the equipment compartment 6. The output end of the suction and blowing air pump 64 is connected to the interior of the forming seat 6225 through a ventilation hose 641. The ventilation hose 641 is limited by a positioning piece 6228 embedded in the push plate 6229. The positioning piece 6228 can be bolted to complete the positioning of the hose 641 through the passage, preventing bending at this point during lifting and lowering, which would affect the normal airflow transmission. The suction and blowing air pump 64 softens the additionally pressed film by blowing air, allowing the heat to conduct and making it easier to fit with the skeleton groove. At the same time, it also softens the bottom of the cup, preventing the bottom of the cup from being damaged when it comes into contact with the stabilizer 71 during winter use. By sucking air, during the separation stage after the skeleton groove is formed, it is ensured that it will not be affected by the adhesion of the top mold 614, thus avoiding subsequent operations. The molding base 6225 has a heating wire 6226 fixed inside. The top of the molding base 6225 and the inner wall of the stabilizer 71 have several interconnected vent holes 72 for ventilation. The softening of the cup bottom and the additional waterproof membrane is achieved through the conduction of hot air.

[0051] Two feeding mechanisms 63 are installed in rectangular slots on the inner wall of the equipment compartment 6. Each rectangular slot has a sliding cavity 631, and each sliding cavity 631 has a toothed groove 634 on its inner wall. A matching gear 635 meshes within each toothed groove 634. The two gears 635 are connected to a feeding frame 633 located inside the sliding cavity 631 via bearings 636. A feeding roller 638 is connected to the middle of the feeding frame 633 via a drive shaft 637. The bottom of the feeding frame 633 is driven by an electric push rod 632 installed on the bottom wall of the sliding cavity 631. The extension and retraction of the feeding roller 638 can be achieved by raising and lowering the electric push rod 632. This allows for feeding when an additional geomembrane is needed to enhance the seepage prevention function at the bottom of the cup, or when no additional geomembrane is required. The additional geomembrane serves a recycling function. It should be noted that the added geomembrane can be a hot-cut PP film with a nano-coating, etc. It is softened by the hot air generated by the heating wire 6226. At the same time, the feeding direction is from left to right. That is, the film is first coated by the secondary knurling roller 623 (under the thermoforming adhesive integrated at the traditional eccentric wheel, the film coating can be carried out in the same thermoforming adhesive process as the traditional PE film. Since the film coating body is not the paper combined with PE film structure at the bottom of the cup, but the material of hot-cut PP film with a nano-coating, after heating and knurling, the cutting and hot pressing process is realized, so that an additional geomembrane is added to the bottom of the cup to prevent the bottom of the cup from seeping due to the liquid with low density). It follows the transmission trajectory of the cup bottom forming mechanism 4.

[0052] The cup bottom paper feeding mechanism of the high-speed paper cup machine described in this embodiment, after traditional cup body forming, cup bottom cutting, and thermoforming and knurling of the cup body, passes through rectangular slots. The working intervals and extension / retraction times of the cylinders of the constant pressure mechanism 61 and the grooving mechanism 62 are adapted to the rotational transmission speed of the cup bottom forming mechanism 4. Simultaneously, the feeding roller 638 driven by the motor should be adapted to the working intervals and extension / retraction times of the cylinders of the constant pressure mechanism 61 and the grooving mechanism 62, thereby realizing the feeding of the cup body after the cup bottom has been formed. The bottom of the cup is first coated with a second film and then knurled in the reverse direction to ensure its impermeability and stable connection between the bottom and the body. Then, the bottom is pressed together by the molding seat 6225 and the top mold 614. The upper and lower ends of the bottom are then pressed together by the matching of the stabilizing groove 615 and the stabilizing component 71 to complete the forming of the skeleton groove. At the same time, the bottom of the cup is made into a conical shape to increase the stability of the bottom of the cup and the effect of dispersing the gravity pressure when water is filled. After the above two steps are completed, the secondary molded cup body is discharged by the finished product discharge mechanism.

[0053] It should be noted that the structure described in this invention can be implemented in many different forms and is not limited to the embodiments described. Any equivalent transformations made by those skilled in the art based on the description and drawings of this invention, or direct or indirect applications in other related technical fields, such as the loading and unloading of other items, are included within the protection scope of this invention.

Claims

1. A bottom paper cutting and feeding mechanism of a high-speed paper cup machine, comprising a machine box (1), wherein a feeding mechanism I and a feeding mechanism II for fan-shaped paper sheets and cylindrical paper are installed at the machine box (1), a cup body forming mechanism (5) matched with the feeding mechanism I is installed at the machine box (1), a bottom forming mechanism (4) matched with the cup body forming mechanism (5) is installed at the feeding mechanism II, and a finished product discharging mechanism for discharging finished paper cups is installed at the machine box (1), characterized in that: The cabinet (1) is provided with a secondary cutting mechanism matched with the cup bottom forming mechanism (4), which comprises a matched pressure setting mechanism (61) and a groove forming mechanism (62); The pressure setting mechanism (61) and the groove forming mechanism (62) are provided with a feeding mechanism (63), and the upper surface of the cabinet (1) is fixed with an equipment bin (6), and the pressure setting mechanism (61), the groove forming mechanism (62) and the feeding mechanism (63) are respectively installed at the top, the bottom and the middle of the equipment bin (6); The pressure setting mechanism (61) comprises a sector plate I (611), the top of the equipment bin (6) is fixed with a mounting rack (612), the bottom of the mounting rack (612) is fixed with a gas cylinder III (613), the inner top wall of the equipment bin (6) is fixed with a gas cylinder I, the output end of the gas cylinder I is connected with the sector plate I (611), two molds (614) matched with the paper cup are installed in the sector plate I (611), the output end of the gas cylinder III (613) penetrates through the top of the equipment bin (6) and is fixed with a linkage plate, and the bottom of the linkage plate is fixed with two linkage rods (616) matched with the molds (614). The groove forming mechanism (62) comprises a sector plate II (621), the inner top wall of the equipment bin (6) is fixed with a gas cylinder II, the output end of the gas cylinder II is fixedly connected with the sector plate II (621), the inside of the sector plate II (621) is inlaid with a secondary knurling cylinder (623) and a forming cylinder (622) matched with the two molds (614), and the two sides of the bottom of the sector plate II (621) are fixedly connected with support plates (624) through connecting rods. The linkage mechanism comprises a forming seat (6225) for matching with the cup bottom, the upper surface of the forming seat (6225) is a curved surface and is fixed with a stable piece (71) in the shape of a rice character, the stable piece (71) is matched with a stable groove (615), the outer circle of the forming seat (6225) is fixed with a moving plate (6224) abutting against the inner wall of the forming cylinder (622), the left and right sides of the moving plate (6224) are fixedly connected with sliding blocks (6222), the two sliding blocks (6222) are respectively clamped in the sliding grooves (6221) formed in the inner side wall of the forming cylinder (622), the bottom ends of the two sliding blocks (6222) are respectively connected with the inner bottom walls of the sliding grooves (6221) through springs I (6223), the bottom of the forming cylinder (622) is provided with a through groove, the inner circle of the through groove is provided with an extension layer (6227), the push plate (6229) fixed at the bottom of the forming seat (6225) is limited by the extension layer (6227), the bottom of the support plate (624) is fixed with a gas cylinder V (625), the output end of the gas cylinder V (625) penetrates through the support plate (624) and is connected with the push plate (6229).

2. A bottom sheet cutting and feeding mechanism of a high speed paper cup machine as claimed in claim 1, wherein: The bottom of the mold (614) located at the top of the secondary knurling cylinder (623) is provided with a stable groove (615).

3. A bottom sheet cutting and feeding mechanism of a high speed paper cup machine as claimed in claim 1, wherein: The number of the feeding mechanism (63) is two and is installed at the rectangular slot of the inner side wall of the equipment bin (6), the inner wall of the rectangular slot is provided with a sliding cavity (631), the inner side wall of the sliding cavity (631) is provided with a gear slot (634), the inside of each gear slot (634) is engaged with a matched gear (635), the two gears (635) are connected with the feeding frame (633) in the sliding cavity (631) through bearings (636) respectively, the middle part of the feeding frame (633) is connected with a feeding roller (638) through a transmission shaft (637), and the bottom of the feeding frame (633) is driven by an electric push rod (632) installed on the inner bottom wall of the sliding cavity (631).

4. The bottom sheet cutting and feeding mechanism of a high speed paper cup machine according to claim 1, wherein: The inner bottom wall of the equipment bin (6) is provided with a suction and blowing pump (64), the output end of the suction and blowing pump (64) is communicated with the inside of the forming seat (6225) through an air hose (641), the air hose (641) is limited by the positioning piece (6228) inlaid by the push plate (6229), the inside of the forming seat (6225) is fixed with an electric heating wire (6226), and the top of the forming seat (6225) and the inner wall of the stabilizing piece (71) are provided with a plurality of air holes (72) in communication for ventilation.

5. A bottom sheet cutting and feeding mechanism of a high speed paper cup machine as claimed in claim 1, wherein: Each branch end of the stabilizing piece (71) is triangular, and the edge end is located at the top and is arc-shaped.

6. A bottom sheet cutting and feeding mechanism of a high speed paper cup machine as claimed in claim 1, wherein: The mold (614) is movably connected with the sector plate I (611), the sector plate I (611) is provided with a movable groove for the mold (614) to move up and down, the inner wall of the movable groove is inlaid with equidistantly distributed positioning balls (617), the top end of the mold (614) is fixedly sleeved with a reset seat (619), the bottom end of the reset seat (619) is connected with the upper surface of the sector plate I (611) through the annular array distributed spring II (8), and the outer circle of the reset seat (619) is provided with a positioning groove (618) for clamping each positioning ball (617).

7. A bottom sheet cutting and feeding mechanism of a high speed paper cup machine as claimed in claim 1, wherein: The cup bottom forming mechanism (4) is located at the rectangular slot, and the pressure setting mechanism (61) and the groove forming mechanism (62) are located on the upper and lower sides of the cup bottom forming mechanism (4) respectively.

8. A bottom sheet cutting and feeding mechanism of a high speed paper cup machine as claimed in claim 1, wherein: The second knurling cylinder (623) is opposite to the knurling direction of the cup bottom forming mechanism (4).

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