Cup bottom continuous feeding and cutting mechanism of paper cup machine

Abstract

The utility model relates to the field of paper cup machines, and discloses a cup bottom continuous feeding and cutting mechanism of a paper cup machine, which comprises an upper mounting seat and a lower mounting seat, an upper cutting die is arranged on the upper mounting seat, a lower cutting die is arranged on the lower mounting seat, at least one of the upper cutting die and the lower cutting die is connected with a power source I for driving the upper cutting die and the lower cutting die to move oppositely, and the upper cutting die is matched with the lower cutting die in a shearing manner. A processing plane for cutting the sheet stock is arranged between the upper mounting seat and the lower mounting seat; the waste discharging device further comprises a waste discharging plate, the waste discharging plate is located on the outer side of the lower cutting die and provided with a first side part connected with the lower cutting die, and the waste discharging plate is provided with at least one upwards-rising lifting section in the direction from inside to outside. The cup bottom cutting mechanism comprises the procedures of paper material punching, stripping, forming, waste material cutting and the like, a better contact position is formed at the corner of the second side part of the waste discharge plate, and the phenomenon that backing paper is hung on the waste discharge plate during feeding can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of paper cup machines, and in particular to a continuous feeding and cutting mechanism for the bottom of paper cup machines. Background Technology

[0002] Paper cup machines (paper cup and bowl forming equipment) require the production process of shaping fan-shaped paper sheets into cylindrical cup bodies, with a bottom added to the bottom. The bottom is formed using a bottom-forming device. During bottom formation, paper rolls are fed in to form circular paper sheets, and then the edges of these sheets are folded to complete the bottom. The bottom is then attached to the cup body to form the paper cup or bowl. However, after the paper is cut by the upper and lower dies, waste material often sags due to its own weight after passing through the lower die. This waste material, especially around the perforated edges, tends to get caught at the corners of the lower die or the entry point of the cutting blade, thus affecting processing efficiency. To meet the demands of higher-speed paper cup machines, the bottom-forming device needs a more stable structure. Summary of the Invention

[0003] This invention addresses the drawback of existing technologies where paper waste easily gets caught on the edge of the cutting tool by providing a continuous feeding and cutting mechanism for the bottom of a paper cup machine.

[0004] To solve the above-mentioned technical problems, this utility model achieves its solution through the following technical solution:

[0005] The continuous feeding and cutting mechanism for the bottom of a paper cup machine includes an upper mounting base and a lower mounting base. An upper die is provided on the upper mounting base, and a lower die is provided on the lower mounting base. At least one of the upper and lower dies is connected to a power source that drives them to move in opposite directions. The upper and lower dies are in shearing engagement. There is a processing plane for cutting sheet material between the upper and lower mounting bases. The machine also includes a waste removal plate located outside the lower die and having a first side portion that connects with the lower die. The waste removal plate has at least one upward lifting section from the inside to the outside.

[0006] Preferably, the height of the waste removal plate is not higher than the highest point of the lower die, and the waste removal plate also has a second side that is far away from the first side, the height of the second side being higher than the height of the first side.

[0007] Preferably, an adjusting seat is provided on the inner side of the lower die, and the height of the connection between the lower die and the adjusting seat is not higher than that of the adjusting seat, while the upper die is above the adjusting seat.

[0008] Preferably, the top surface of the lower die is a sloping surface that is higher on the inside and lower on the outside, the first side of the waste removal plate overlaps the edge of the lower die, and the height of the waste removal plate is lower than the edge of the lower die.

[0009] Preferably, the bottom of the adjusting seat is provided with an inner cavity, and a first spring is provided in the inner cavity. The two ends of the first spring abut against the adjusting seat and the lower mounting seat, respectively.

[0010] Preferably, a stripper plate is provided on the outer side of the upper die, and a second spring is connected between the stripper plate and the upper mounting base. The stripper plate is located above the lower die.

[0011] Preferably, the upper mounting base and the lower mounting base are respectively provided with an upper cutter and a lower cutter for shearing, with the lower cutter located on the outside of the waste discharge plate.

[0012] Preferably, the second side of the waste discharge plate is connected to the lower cutter, the second side is corner-shaped, and the height of the highest point of the second side is flush with the inner edge of the lower cutter.

[0013] Preferably, the waste removal plate is L-shaped, with its side connected to the lower cutter and its top surface connected to the lower cutter and lower die. The corner of the second side of the waste removal plate forms a better contact position, which can reduce the amount of paper getting caught on the waste removal plate during bottom paper feeding.

[0014] Preferably, a punch rod is provided in the center of the upper mounting base and the lower mounting base, and a punch head is provided at the top of the punch rod. The punch rod is connected to the power source two. The upper die and the center of the adjusting base both have cavities for the punch head to pass through axially.

[0015] This utility model has significant technical effects due to the adoption of the above technical solutions: the cup bottom cutting mechanism consists of paper punching, stripping, forming, and waste cutting processes. The corner of the second side of the waste discharge plate forms a better contact position, which can reduce the bottom paper from getting caught on the waste discharge plate during feeding. The two sides of the waste discharge plate are connected to the lower die and the lower cutter, respectively, which can receive the waste and lift the waste conveyed forward, so that the front end of the waste is lifted upward, avoiding the waste hanging by its own weight from getting caught on the lower cutter or the lower die. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a cross-sectional view of the present invention.

[0018] Figure 3 This is a schematic diagram of the structure of this utility model after removing the upper mounting base.

[0019] Figure 4 yes Figure 2 A schematic diagram of the structure of A in the middle.

[0020] The parts referred to by the numbers in the above attached figures are as follows: 1. Upper mounting base; 11. Upper die; 12. Upper cutter; 2. Lower mounting base; 21. Lower die; 22. Lower cutter; 3. Machining plane; 4. Waste removal plate; 41. First side; 42. Second side; 5. Adjusting seat; 51. First spring; 6. Punch rod; 61. Punch head; 7. Stripper plate; 71. Second spring. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0022] Example 1

[0023] To solve the above-mentioned technical problems, this utility model achieves its solution through the following technical solution:

[0024] The continuous feeding and cutting mechanism at the bottom of the paper cup machine, such as Figure 1-4 As shown, the device includes an upper mounting base 1 and a lower mounting base 2. The upper mounting base 1 has an upper die 11, and the lower mounting base 2 has a lower die 21. At least one of the upper die 11 and the lower die 21 is connected to a power source that drives them to move in opposite directions. The upper die 11 and the lower die 21 are in shearing engagement. A processing plane 3 for sheet material cutting is located between the upper mounting base 1 and the lower mounting base 2. The device also includes a waste removal plate 4, located outside the lower die 21 and having a first side portion 41 that connects to the lower die 21. The waste removal plate 4 has at least one upward-rising section from the inside out. The power source can be connected to the upper die 11 for transmission; in this embodiment, it drives the movement of the lower mounting base 2.

[0025] The height of the waste removal plate 4 is not higher than the highest point of the lower die 21. The waste removal plate 4 also has a second side 42 that is far away from the first side 41, and the height of the second side 42 is higher than the height of the first side 41.

[0026] An adjusting seat 5 is provided on the inner side of the lower die 21. The height of the connection between the lower die 21 and the adjusting seat 5 is not higher than that of the adjusting seat 5. The upper die 11 is located above the adjusting seat 5.

[0027] The bottom of the adjusting seat 5 is provided with an inner cavity, and a first spring 51 is provided in the inner cavity. The two ends of the first spring 51 abut against the adjusting seat 5 and the lower mounting seat 2, respectively.

[0028] A stripper plate 7 is provided on the outer side of the upper die 11. A second spring 71 is connected between the stripper plate 7 and the upper mounting base 1. The stripper plate 7 is located above the lower die 21.

[0029] The upper mounting base 1 and the lower mounting base 2 are respectively provided with an upper cutter 12 and a lower cutter 22 for shearing engagement. The lower cutter 22 is located on the outside of the waste discharge plate 4. The second side 42 of the waste discharge plate 4 is connected to the lower cutter 22. The second side 42 is corner-shaped, and the height of the highest point of the second side 42 is flush with the inner edge of the lower cutter 22.

[0030] The waste removal plate 4 is L-shaped. The side of the waste removal plate 4 is connected to the lower cutter 22, and the top surface of the waste removal plate 4 is connected to the lower cutter 22 and the lower die 21.

[0031] A punch rod 6 is inserted through the center of the upper mounting base 1 and the lower mounting base 2. A punch head 61 is provided at the top of the punch rod 6. The punch rod 6 is connected to the power source 2. The upper die 11 and the center of the adjusting base 5 both have cavities for the punch head 61 to pass through axially.

[0032] Working principle: During the cup base making process, the paper roll is fed into the sheet material, and the paper sheet is formed into a circular piece on the processing plane 3 used for sheet material cutting. Then, the edges of the circular paper piece are folded to complete the base. Finally, the completed cup base is connected to the cup body to form a paper cup or paper bowl.

[0033] The lower mounting base 2 can be raised to simultaneously drive the lower cutting die 21 and the lower cutting blade 22 mounted on the lower mounting base 2, so that the upper and lower cutting dies, in a shearing cooperation, cut the bottom shape of the paper cup or paper bowl from the continuous roll of paper. The upper cutting blade 12 and the lower cutting blade 22, in a shearing cooperation, cut off the waste material. The paper roll is fed and cut by pushing the paper roll forward on the feeding side of the processing plane 3, rather than by pulling the material on the output side. Therefore, after the waste material is cut into bottom pieces and cut, it can continue to be fed for cutting, realizing a continuous feeding and continuous cutting bottom-forming process.

[0034] Before the bottom is cut, the second power source first drives the punch 6 to descend and the lower mounting base 2 to rise. At the same time, it drives the lower die 21 and the lower cutter 22 set on the lower mounting base 2. The lower die 21 rises and cooperates with the upper die 11 to cut the continuous roll of paper, cutting out the central part that will become the bottom of the cup. The bottom surface of the upper die 11 is the processing plane 3. When the lower die 21 reaches the processing plane and contacts the paper, the adjusting seat 5 contacts the upper die 11. At this time, the lower mounting base 2 continues to rise, and the upper die 11 and the lower die 21 intersect. The upper die 11 presses down the adjusting seat 5, which is connected to the first spring, and the lower die 21 pushes up the stripper plate 7, which is connected to the second spring 71. The upper die 11 and the lower die 21 cooperate to cut the paper. The waste material connected to the bottom of the paper cup is located between the lower die 21 and the stripper plate 7. The waste material is located at a higher position than the bottom of the paper cup, thus achieving separation. The bottom of the paper cup is located in the inner cavity of the lower die 21 and is supported by the adjusting seat 5. Subsequently, the punch 6 drives the punch 61 to push the bottom of the paper cup into the upper cavity. As the punch 61 pushes the bottom of the cup into the inner cavity of the upper die 11, it causes the originally horizontal paper bottom to gradually bend. When it is pushed out of the upper cavity of the upper die 11, the paper bottom is folded into a skirt, thus forming the bottom of the cup. At the same time, the waste material cut off from the previous paper cup bottom is cut off by the cooperation of the upper cutter 12 and the lower cutter 22.

[0035] like Figure 2 , 3 As shown, the paper material is conveyed from right to left. The top surface of the lower die 21 is a sloping surface that is higher on the inside and lower on the outside. The first side 41 of the waste discharge plate 4 overlaps the edge of the lower die 21, and the height of the waste discharge plate 4 is lower than the edge of the lower die 21. After the upper die 11 and the lower die 21 work together to cut the paper, the paper will hang slightly due to the sloping surface at the cut of the lower die. The hanging is more severe at the waste edge. Since the first side 41 of the waste discharge plate 4 overlaps the edge of the lower die 21, and the height of the waste discharge plate 4 is lower than the edge of the lower die 21, the first side 41 of the waste discharge plate 4 is close to the lower die 21, just holding it, so that the waste falls on the waste discharge plate 4 and will not be stuck by the edge of the cutter. The subsequent paper material pushes the remaining waste material from the cutting process to the left. The waste material is lifted upward along the waste removal plate 4. The waste material has a hole in the middle, which is formed after the bottom of the paper cup is cut off. Each part of the waste material is guided upward by the waste removal plate 4 and enters the position of the lower cutter 22. The second side 42 of the waste removal plate 4 is the exit end, which is flush with the lower cutter 22. The second side 42 of the waste removal plate 4 is raised. When the waste material is at this position, its direction is upward, and it will not hang down on the edge of the lower cutter 22 due to its own weight.

[0036] In the description of this utility model, it should be understood that the terms "center," "length," "width," "thickness," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] In summary, the above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall fall within the scope of the patent of the present utility model.

Claims

1. A continuous feeding and cutting mechanism for the bottom of a paper cup machine, comprising an upper mounting base (1) and a lower mounting base (2), wherein an upper die (11) is provided on the upper mounting base (1), and a lower die (21) is provided on the lower mounting base (2), at least one of the upper die (11) and the lower die (21) is connected to a power source for driving them to move in opposite directions, the upper die (11) and the lower die (21) are in shearing engagement, and a processing plane (3) for sheet material cutting is provided between the upper mounting base (1) and the lower mounting base (2); characterized in that: It also includes a waste discharge plate (4), which is located outside the lower die (21) and has a first side (41) that connects with the lower die (21). The waste discharge plate (4) has at least one upward lifting section in the direction from the inside to the outside.

2. The continuous feeding and cutting mechanism for the bottom of the paper cup machine according to claim 1, characterized in that: The height of the waste removal plate (4) is not higher than the highest point of the lower die (21). The waste removal plate (4) also has a second side (42) that is far away from the first side (41), and the height of the second side (42) is higher than the height of the first side (41).

3. The continuous feeding and cutting mechanism for the bottom of the paper cup machine according to claim 1, characterized in that: An adjusting seat (5) is provided on the inner side of the lower die (21). The height of the connection between the lower die (21) and the adjusting seat (5) is not higher than that of the adjusting seat (5). The upper die (11) is above the adjusting seat (5).

4. The continuous feeding and cutting mechanism for the bottom of the paper cup machine according to claim 1, characterized in that: The top surface of the lower die (21) is a sloping surface that is higher on the inside and lower on the outside. The first side (41) of the waste removal plate (4) overlaps the edge of the lower die (21), and the height of the waste removal plate (4) is lower than the edge of the lower die (21).

5. The continuous feeding and cutting mechanism for the bottom of the paper cup machine according to claim 1, characterized in that: The bottom of the adjusting seat (5) is provided with an inner cavity, and a first spring (51) is provided in the inner cavity. The two ends of the first spring (51) abut against the adjusting seat (5) and the lower mounting seat (2) respectively.

6. The continuous feeding and cutting mechanism for the bottom of the paper cup machine according to claim 1, characterized in that: A stripper plate (7) is provided on the outer side of the upper die (11). A second spring (71) is connected between the stripper plate (7) and the upper mounting base (1). The stripper plate (7) is located above the lower die (21).

7. The continuous feeding and cutting mechanism for the bottom of the paper cup machine according to claim 2, characterized in that: The upper mounting base (1) and the lower mounting base (2) are respectively provided with an upper cutter (12) and a lower cutter (22) for shearing cooperation. The lower cutter (22) is located on the outside of the waste discharge plate (4).

8. The continuous feeding and cutting mechanism for the bottom of the paper cup machine according to claim 7, characterized in that: The second side (42) of the waste discharge plate (4) is connected to the lower cutter (22). The second side (42) is corner-shaped, and the height of the highest point of the second side (42) is flush with the inner edge of the lower cutter (22).

9. The continuous feeding and cutting mechanism for the bottom of the paper cup machine according to claim 6, characterized in that: The waste removal plate (4) is L-shaped. The side of the waste removal plate (4) is connected to the lower cutter (22), and the top surface of the waste removal plate (4) is connected to the lower cutter (22) and the lower die (21).

10. The continuous feeding and cutting mechanism for the bottom of the paper cup machine according to claim 1, characterized in that: A punch rod (6) is provided in the center of the upper mounting base (1) and the lower mounting base (2). A punch head (61) is provided at the top of the punch rod (6). The punch rod (6) is connected to the power source two. The upper die (11) and the adjusting base (5) both have cavities in the center for the punch head (61) to pass through axially.

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