Bottom punching and stretching device of paper cup machine

Abstract

A supporting column is arranged at the upper end of a bottom punching sliding sleeve, the upper end of the supporting column is connected with the lower end of a bottom punching mandrel seat, a lower cutting die is arranged at the upper end of the bottom punching mandrel seat, an upper cutting die is arranged at the lower end of an upper plate, a cutting die paper pressing ring is arranged in the lower cutting die, and a bottom punching spring is arranged between the lower end of the cutting die paper pressing ring and a bottom paper pressing spring plate at the bottom of the lower cutting die. The lower end of the cutter mold pressing paper ring is limited by the inner side of the lower cutter mold; the upper stripper plate is sleeved on the connecting shaft at the lower end of the upper plate, the limiting gasket is arranged below the connecting shaft, the upper stripper plate spring is sleeved outside the connecting shaft between the upper stripper plate and the upper plate, the upper stripper plate is provided with a hole corresponding to the lower end of the upper cutting die, the lower end of the upper cutting die and the upper end of the lower cutting die are matched for cutting, and the lower end of the upper cutting die and the upper end of the cutting die paper pressing ring are matched for pressing paper. The cup has the advantages that the outer edge of the cup bottom is elastically pressed by the upper end of the knife mould pressing paper ring during cutting and stretching, so that excessive and overlarge wrinkles are effectively avoided; the structure is simple and the effect is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of paper cup machine equipment, and relates to a bottom punching and stretching device for a paper cup machine. Background Art

[0002] In the process of producing paper cups by a paper cup machine, first, a paper cup bottom is made on the bottom punching mechanism of the paper cup machine, and then the paper cup machine is processed and produced. The current bottom punching mechanism includes a fixed die cutter, a movable die cutter, a sliding sleeve and a ejector rod. The sliding sleeve slides upward on the ejector rod to drive the movable die cutter to move towards the fixed die cutter. As the movable die cutter continues to move upward, the die openings of the movable die cutter and the fixed die cutter contact and die cut the bottom paper of the cup. Then, the ejector rod pushes the formed bottom paper of the cup out of the forming die cavity; when the bottom paper of the cup is formed, the outer edge needs to be folded downward, and the folds on the outer edge are large and dense, which easily causes the bottom of the paper cup to be not firmly adhered and leak water. Content of the Utility Model

[0003] The purpose of the utility model is to solve the defects existing in the prior art, and a bottom punching and stretching device for a paper cup machine is proposed.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme: a bottom punching and stretching device for a paper cup machine, including an upper plate, a middle plate, a lower plate, side plates, a guide sleeve shaft, a bottom punching sliding sleeve, a support column, an upper die cutter, a lower die cutter, a die cutter paper pressing ring, an upper unloading plate, a bottom punching mandrel seat, a bottom paper pressing spring plate, a bottom punching spring and an upper unloading plate spring. Side plates are arranged on both sides of the lower plate, the upper ends of the side plates are connected to the upper plate, a guide sleeve shaft is also arranged between the upper plate and the lower plate, the middle plate is sleeved on the guide sleeve shaft between the upper plate and the lower plate, the bottom punching sliding sleeve passes through the lower plate from bottom to top, a support column is arranged at the upper end of the bottom punching sliding sleeve, the upper end of the support column is connected to the lower end of the bottom punching mandrel seat, the bottom punching mandrel seat passes through the middle plate and is fixedly connected to the middle plate, a lower die cutter is arranged at the upper end of the bottom punching mandrel seat, an upper die cutter is arranged at the lower end of the upper plate, the die cutter paper pressing ring is arranged in the lower die cutter, a through hole is arranged in the lower die cutter, the upper end of the through hole is an opening, the upper end of the die cutter paper pressing ring is matched with the opening, and a bottom punching spring is arranged between the lower end of the die cutter paper pressing ring and the bottom paper pressing spring plate at the bottom of the lower die cutter, and the lower end of the die cutter paper pressing ring is limited by the inner side of the lower die cutter; the upper unloading plate is sleeved on the connecting shaft at the lower end of the upper plate, a limit washer is arranged separately at the lower end of the connecting shaft, the upper unloading plate spring is sleeved outside the connecting shaft between the upper unloading plate and the upper plate, a hole corresponding to the lower end of the upper die cutter is opened on the upper unloading plate, the lower end of the upper die cutter and the upper end of the lower die cutter are matched for cutting, and the lower end of the upper die cutter and the upper end of the die cutter paper pressing ring are matched for paper pressing.

[0005] Further, a paper inlet is arranged on one side plate, and a waste paper outlet is arranged on the other side plate.

[0006] Further, a waste cutting upper knife is arranged at the upper end of the paper inlet, a waste cutting lower knife matched with the waste cutting upper knife is arranged at the lower end of the paper inlet, and the waste cutting lower knife is arranged on the middle plate close to the paper inlet side.

[0007] Further, a gasket is provided on the outer side of the lower die of the middle plate at the upper end.

[0008] Further, the gasket is flush with the upper end of the lower die.

[0009] Further, a second through hole is provided inside the upper die.

[0010] Further, the inner diameter of the opening at the upper end of the through hole is smaller than the inner diameter of the through hole; the outer diameter of the upper end of the die pressing paper ring is smaller than the outer diameter of the lower end of the die pressing paper ring.

[0011] The beneficial effects of the utility model are as follows: during cutting and stretching, through the elastic pressing of the upper end of the die pressing paper ring on the outer edge of the cup bottom, excessive and large wrinkles are effectively avoided; the structure is simple and the effect is good. Description of the Drawings

[0012] Figure 1 is the structural schematic of the utility model Figure 1 .

[0013] Figure 2 is the structural schematic of the utility model Figure 2 .

[0014] Figure 3 is the side view of the utility model Figure 1 .

[0015] Figure 4 is the side view of the utility model Figure 1 Sectional view.

[0016] Figure 5 is the side view of the utility model Figure 2 .

[0017] Figure 6 is the side view of the utility model Figure 2 Sectional view.

[0018] Figure 7 is the top view of the utility model.

[0019] 1 is the upper plate; 2 is the middle plate; 3 is the lower plate; 4 is the side plate; 5 is the guide sleeve shaft; 6 is the bottom punching sliding sleeve; 7 is the support pillar; 8 is the upper die; 9 is the lower die; 10 is the die pressing paper ring; 11 is the upper stripping plate; 12 is the bottom punching core shaft seat; 13 is the bottom pressing paper spring plate; 14 is the bottom punching spring; 15 is the upper stripping plate spring; 16 is the through hole; 17 is the paper inlet; 18 is the waste paper outlet; 19 is the waste cutting upper die; 20 is the waste cutting lower die; 21 is the gasket; 22 is the second through hole, 23 is the opening. Detailed Embodiments

[0020] The following will combine the attached drawings in the embodiments of the present utility model Figures 1-7, the technical solutions in the embodiments of the present utility model are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0021] Embodiment 1 Refer to Figures 1-7 , a bottom punching and stretching device for a paper cup machine, including an upper plate 1, a middle plate 2, a lower plate 3, side plates 4, guide sleeve shafts 5, bottom punching sliding sleeves 6, struts 7, upper cutting dies 8, lower cutting dies 9, cutting die paper pressing rings 10, upper unloading plates 11, bottom punching mandrel seats 12, bottom paper pressing spring plates 13, bottom punching springs 14 and upper unloading plate springs 15. Side plates 4 are provided on both sides of the lower plate 3, the upper ends of the side plates 4 are connected to the upper plate 1, and guide sleeve shafts 5 are also provided between the upper plate 1 and the lower plate 3. The middle plate 2 is sleeved on the guide sleeve shafts between the upper plate and the lower plate. The bottom punching sliding sleeve 6 passes through the lower plate 3 from bottom to top. A strut 7 is provided at the upper end of the bottom punching sliding sleeve, and the upper end of the strut is connected to the lower end of the bottom punching mandrel seat 12. The bottom punching mandrel seat passes through the middle plate 2 and is fixedly connected to the middle plate. The upper end of the bottom punching mandrel seat is provided with a lower cutting die 9, the lower end of the upper plate is provided with an upper cutting die 8, the cutting die paper pressing ring 10 is arranged in the lower cutting die 9, a through hole 16 is provided in the lower cutting die, the upper end of the through hole is an opening 23, the upper end of the cutting die paper pressing ring is matched with the opening, and a bottom punching spring 14 is provided between the lower end of the cutting die paper pressing ring and the bottom paper pressing spring plate 13 at the bottom of the lower cutting die, and the lower end of the cutting die paper pressing ring is limited by the inner side of the lower cutting die; the upper unloading plate 11 is sleeved on the connecting shaft at the lower end of the upper plate, a limiting washer is provided separately at the lower end of the connecting shaft, the upper unloading plate spring 15 is sleeved outside the connecting shaft between the upper unloading plate and the upper plate, a hole corresponding to the lower end of the upper cutting die is opened on the upper unloading plate, the lower end of the upper cutting die and the upper end of the lower cutting die are cooperatively cut, and the lower end of the upper cutting die and the upper end of the cutting die paper pressing ring are cooperatively used for paper pressing.

[0022] For the bottom punching and stretching device of the paper cup machine, a paper inlet 17 is provided on one side plate, and a waste paper outlet 18 is provided on the other side plate.

[0023] For the bottom punching and stretching device of the paper cup machine, a waste cutting upper knife 19 is provided at the upper end of the paper inlet, and a waste cutting lower knife 20 cooperating with the waste cutting upper knife is provided at the lower end of the paper inlet. The waste cutting lower knife is arranged on the side of the middle plate close to the paper inlet.

[0024] For the bottom punching and stretching device of the paper cup machine, a gasket 21 is provided at the upper end of the middle plate outside the lower cutting die.

[0025] For the bottom punching and stretching device of the paper cup machine, the gasket is flush with the upper end of the lower cutting die.

[0026] For the bottom punching and stretching device of the paper cup machine, a second through hole 22 is provided inside the upper cutting die.

[0027] For the bottom punching and stretching device of the paper cup machine, the inner diameter of the opening at the upper end of the through hole is smaller than the inner diameter of the through hole; the outer diameter of the upper end of the cutting die paper pressing ring is smaller than the outer diameter of the lower end of the cutting die paper pressing ring.

[0028] The bottom punching and stretching device of a paper cup machine can effectively avoid excessive and large wrinkles by elastically pressing the upper end of the paper ring against the outer edge of the cup bottom through a die during cutting and stretching. It has a simple structure and good effect.

[0029] For the bottom punching and stretching device of a paper cup machine, the paper enters between the upper plate and the lower plate through the paper inlet. The bottom punching sliding sleeve is driven by a driving device to move upward, driving the middle plate, the bottom punching mandrel seat 12, the bottom pressing paper spring plate, the support column, the lower die 9, the die pressing paper ring 10, and the bottom punching spring 14 to move upward along the guide sleeve shaft 5. The upper end of the lower die 9 abuts against the outer edge of the hole in the upper unloading plate 11, and then the upper unloading plate 11 is driven to move upward. The lower end of the upper die passes through the hole and contacts the die pressing paper ring 10 to press the paper, and then the lower die 9 and the upper die cooperate to cut the paper. After cutting, the paper is ejected by the driving device to form the cup bottom. The driving device is a jet or other device in the through hole.

[0030] During the upward movement of the middle plate, the waste cutting upper knife 19 and the waste cutting lower knife 20 cooperate to cut the paper.

[0031] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. The punch bottom stretching device of the paper cup machine includes an upper plate, a middle plate, a lower plate, a side plate, a guide sleeve shaft, a punch bottom sliding sleeve, a support, an upper cutting die, a lower cutting die, a cutting die paper pressing ring, an upper stripping plate, a punch bottom mandrel seat, a bottom pressing paper spring plate, a punch bottom spring and an upper stripping plate spring, characterized in that: Side plates are arranged on both sides of the lower plate, the upper ends of the side plates are connected to the upper plate, a guide sleeve shaft is also arranged between the upper plate and the lower plate, the middle plate is sleeved on the guide sleeve shaft between the upper plate and the lower plate, the punch bottom sliding sleeve passes through the lower plate from bottom to top, a pillar is arranged on the upper end of the punch bottom sliding sleeve, the upper end of the pillar is connected to the lower end of the punch bottom mandrel seat, the punch bottom mandrel seat passes through the middle plate and is fixedly connected to the middle plate, a lower cutting die is arranged on the upper end of the punch bottom mandrel seat, an upper cutting die is arranged on the lower end of the upper plate, a cutting die pressing ring is arranged in the lower cutting die, a through hole is arranged in the lower cutting die, the upper end of the through hole is an opening, and the cutting die The upper end of the paper pressing circle cooperates with the opening, and a bottom punching spring is provided between the lower end of the knife die paper pressing circle and the bottom paper pressing spring plate at the bottom of the lower knife die, and the lower end of the knife die paper pressing circle is limited by the inner side of the lower knife die; the upper stripping plate is sleeved on the connecting shaft at the lower end of the upper plate, and a limiting washer is provided under the connecting shaft. The upper stripping plate spring is sleeved outside the connecting shaft between the upper stripping plate and the upper plate, and a hole corresponding to the lower end of the upper knife die is provided on the upper stripping plate. The lower end of the upper knife die and the upper end of the lower knife die cooperate for cutting, and the lower end of the upper knife die and the upper end of the knife die paper pressing circle cooperate for pressing paper.

2. The bottom punching and stretching device for a paper cup machine according to claim 1, characterized in that: A paper inlet is arranged on one side plate, and a waste paper outlet is arranged on the other side plate.

3. The bottom punching and stretching device for a paper cup machine according to claim 1, characterized in that: An upper waste cutting knife is arranged at the upper end of the paper inlet, and a lower waste cutting knife cooperating with the upper waste cutting knife is arranged at the lower end of the paper inlet. The lower waste cutting knife is arranged on the side of the middle plate close to the paper inlet.

4. The bottom punching and stretching device for a paper cup machine according to claim 3, characterized in that: A gasket is arranged on the upper end of the middle plate and located outside the lower cutting die.

5. The bottom punching and stretching device for a paper cup machine according to claim 4, characterized in that: The gasket is flush with the upper end of the lower die.

6. The bottom punching and stretching device for a paper cup machine according to claim 1, characterized in that: A second through hole is arranged inside the upper cutting die.

7. The bottom punching and stretching device for a paper cup machine according to claim 1, characterized in that: The opening inner diameter of the upper end of the through hole is smaller than the inner diameter of the through hole; the outer diameter of the upper end of the knife die pressed paper circle is smaller than the outer diameter of the lower end of the knife die pressed paper circle.

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