A paper cup bottom punching and forming device

Abstract

The invention relates to the technical field of paper cup forming, and discloses a paper cup bottom punching and forming device, comprising an installation vertical plate, a paper feed paper board, a bottom punching flange shaft, a bottom pushing rod, a punching knife seat and a punching knife lower die. Paper is put in from a paper inlet of the paper feed paper board, and then a first power source drives the bottom punching flange shaft to move axially so that a bottom punching die head cooperates with a punching knife lower die to punch and cut the paper into a circular cup bottom blank, and then a second power source drives the bottom pushing rod to move axially along the bottom punching flange shaft and then drives the bottom pushing die head to cooperate with the punching knife seat to push the cup bottom blank into a die cavity of the punching knife seat. Since the die cavity size of the punching knife lower die is larger than the die cavity size of the punching knife seat, when the bottom pushing die head pushes the cup bottom blank into the punching knife seat, the four sides of the cup bottom blank are folded along the punching knife seat to form a cup bottom. Based on the paper cup bottom punching and forming device, the cup bottom folding forming is completed synchronously while the paper is punched, so that the punching and folding of the cup bottom can be formed in one time, and the processing efficiency is relatively high.

Description

Technical Field

[0001] The invention relates to the technical field of paper cup forming, in particular to a paper cup bottom punching and forming device. Background Art

[0002] Paper cup forming machine is a kind of paper container made by mechanically processing and gluing base paper (white paperboard) made of chemical wood pulp, and its appearance is cup-shaped.

[0003] The cup body and cup bottom of the existing paper cup are processed and formed separately. The cup bottom needs to be folded circumferentially to provide support. In the prior art, paper is generally punched to form a circular cup bottom blank, and then the circular bottom blank is conveyed to the folding process for folding. Since punching and folding are completed in two processes, the processing efficiency is low. Summary of the invention

[0004] The object of the present invention is to provide a paper cup bottom punching and forming device to solve the problem that the punching and folding are completed in two separate processes during the existing cup body forming process, resulting in low processing efficiency.

[0005] In order to solve the above problems, the present invention provides a paper cup bottom punching and forming device, comprising an installation vertical plate, a paper feed paper board, a bottom punching flange shaft, a bottom pushing rod, a punching knife seat and a punching knife lower die, the paper feed paper board is arranged on one side of the installation vertical plate, and the paper feed paper board is provided with a paper feed port, the punching knife lower die and the punching knife seat are arranged on the outer side of the paper feed paper board in sequence, the die cavity size of the punching knife lower die is larger than the die cavity size of the punching knife seat, the bottom punching flange shaft is installed on the installation vertical plate perpendicular to the paper feeding direction of the paper feed paper board, one end of the bottom punching flange shaft is connected to a first power source, the other end of the bottom punching flange shaft is provided with a bottom punching die head that cooperates with the punching knife lower die to punch paper, the bottom pushing rod is penetrated in the bottom punching flange shaft, one end of the bottom pushing rod is connected to a second power source, the other end of the bottom pushing rod is provided with a bottom pushing die head that cooperates with the punching knife seat to fold the circumferential edge of the paper after punching, and the bottom pushing die head is slidably arranged in the bottom punching die head.

[0006] Furthermore, it also includes a paper guide mounting seat, which is arranged between the mounting vertical plate and the paper feed paper board. A sliding cavity is arranged in the paper guide mounting seat, and the bottom punching die head is slidably arranged in the sliding cavity.

[0007] Furthermore, it also includes a guide flange, which is arranged on the mounting plate, and the bottom flange shaft is passed through the guide flange.

[0008] Furthermore, the punching tool seat and the punching tool lower die are connected to the paper feed board via a punching tool holder.

[0009] Furthermore, a paper guiding baffle is provided on the paper guiding mounting seat, and the paper guiding baffle is arranged at the paper inlet and along the paper feeding direction.

[0010] Furthermore, a side gauge baffle is provided at the paper feed port, and the side gauge baffle can slide along the length direction of the paper feed port.

[0011] Furthermore, bearings are provided between the guide flange and the bottom punching flange shaft, and between the bottom punching flange shaft and the bottom pushing rod.

[0012] The present invention provides a paper cup bottom punching and forming device. Paper is put into the paper feed port of a paper feed paper board. Then a first power source drives a punch bottom flange shaft to move axially so that a punch bottom die head cooperates with a punch cutter lower die to punch and cut the paper into a circular cup bottom blank. Then a second power source drives a bottom pushing rod to move axially along the punch bottom flange shaft and then drives a bottom pushing die head to cooperate with a punch cutter seat to push the cup bottom blank into a die cavity of the punch cutter seat. Since the die cavity size of the punch cutter lower die is larger than the die cavity size of the punch cutter seat, when the bottom pushing die head pushes the cup bottom blank into the punch cutter seat, the four sides of the cup bottom blank are folded along the die cavity mouth surface of the punch cutter seat. In the process that the bottom pushing die head pushes the cup bottom blank to continue to move forward and finally pushes it out of the die cavity of the punch cutter seat, the cup bottom blank is further extruded and shaped to form a cup bottom. Based on the paper cup bottom punching and forming device, the cup bottom folding forming is completed synchronously while the paper is punched, so that the punching and folding forming of the cup bottom can be realized in one time, and the processing efficiency is relatively high. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the paper cup bottom punching and forming device in an embodiment of the present invention.

[0014] Figure 2 Schematic diagram of the cross-sectional structure of a paper cup bottom punching and forming device in an embodiment of the present invention.

[0015] In the figure, 1. installation vertical plate; 2. paper feed paper board; 3. punch bottom flange shaft; 4. push bottom rod; 5. punch seat; 6. punch lower die; 7. paper feed port; 8. punch bottom die head; 9. push bottom die head; 10. paper guide mounting seat; 11. sliding cavity; 12. guide flange; 13. punch holder; 14. paper guide baffle; 15. side gauge baffle; 16. bearing. DETAILED DESCRIPTION

[0016] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0017] In the description of the present invention, it is necessary to understand that the terms "up", "down", "left", "right", "top", "bottom", 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 the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0018] Combination Figure 1~2 As shown, a paper cup bottom punching and forming device according to an embodiment of the present invention is schematically shown, comprising a mounting plate 1, a paper feed paper board 2, a bottom punching flange shaft 3, a bottom push rod 4, a punching knife seat 5 and a punching knife lower die 6. Generally, the mounting plate 1 is connected and installed on a paper cup machine, the paper feed paper board 2 is arranged on one side of the mounting plate 1, and a paper feed port 7 is arranged on the paper feed paper board 2. The punching knife lower die 6 and the punching knife seat 5 are arranged on the outer side of the paper feed paper board 2 in sequence. The mold cavity size of the punching knife lower die 6 is larger than the mold cavity size of the punching knife seat 5. The bottom punching method The flange shaft 3 is installed on the mounting vertical plate 1 perpendicular to the paper feeding direction of the paper feed paperboard 2. One end of the punching flange shaft 3 is connected to the first power source, and the other end of the punching flange shaft 3 is provided with a punching die head 8 that cooperates with the punching knife lower die 6 to punch and cut the paper. The bottom pushing rod 4 is passed through the punching flange shaft 3, and one end of the bottom pushing rod 4 is connected to the second power source. The other end of the bottom pushing rod 4 is provided with a bottom pushing die head 9 that cooperates with the punching knife seat 5 to fold the circumferential edge of the paper after punching and cutting. The bottom pushing die head 9 is slidably arranged in the punching die head 8.

[0019] Specifically, paper is put into the paper inlet 7 of the paper feed paper board 2, and then the first power source drives the bottom punching flange shaft 3 to move axially so that the bottom punching die head 8 cooperates with the punching knife lower die 6 to punch and cut the paper into a circular cup bottom blank, and then the second power source drives the bottom pushing rod 4 to move axially along the bottom punching flange shaft 3 and then drives the bottom pushing die head 9 to cooperate with the punching knife seat 5 to push the cup bottom blank into the mold cavity of the punching knife seat 5. Since the mold cavity size of the punching knife lower die 6 is larger than the mold cavity size of the punching knife seat 5, when the bottom pushing die head 9 pushes the cup bottom blank into the punching knife seat 5, The four sides of the cup bottom blank are folded along the cavity opening surface of the punch seat 5 to form the cup bottom, and in the process of the bottom pushing die head 9 pushing the cup bottom blank to continue to move forward and finally being pushed out of the cavity of the punch seat 5, the outer cylindrical surface of the bottom pushing die head 9 and the inner wall of the cavity of the punch seat 5 work together to further extrude and shape the folded edge part of the cup bottom. Based on the paper cup bottom punching and forming device, the cup bottom folding forming is completed synchronously while the paper is punched, so that the punching and folding of the cup bottom can be realized in one step, and the processing efficiency is high, the forming effect is good, and the cup bottom quality is high.

[0020] Furthermore, the paper cup bottom punching and forming device also includes a paper guide mounting seat 10, which is arranged between the mounting vertical plate 1 and the paper feed paper board 2. A sliding cavity 11 is provided in the paper guide mounting seat 10, and a bottom punching die head 8 is slidably arranged in the sliding cavity 11. When the first power source drives the bottom punching flange shaft 3 to move axially, the bottom punching die head 8 is synchronously driven to slide along the sliding cavity 11 to cooperate with the punch lower die 6 to punch and cut the paper into a round cup tire.

[0021] In this embodiment, in order to realize the axial movement guidance of the punch bottom flange shaft 3, the paper cup bottom punching and forming device also includes a guide flange 12, the guide flange 12 is arranged on the mounting plate 1, and the punch bottom flange shaft 3 is passed through the guide flange 12. At the same time, the guide flange 12 can be used to connect and install the punch bottom flange shaft 3, thereby ensuring the stability of the entire device.

[0022] Specifically, the punch seat 5 and the punch lower die 6 are connected to the paperboard 2 via the punch holder 13 , and the punch holder 13 mainly connects and fixes the punch seat 5 and the punch lower die 6 to ensure stable punching and folding operations.

[0023] In this embodiment, a paper guide baffle 14 is provided on the paper guide mounting seat 10. The paper guide baffle 14 is provided at the paper feed port 7 and arranged along the paper feed direction. The paper guide baffle 14 can guide the paper feed direction of the paper to ensure the flatness of the paper to be punched and the smoothness of the paper feed. Preferably, a side gauge baffle 15 is provided at the paper feed port 7. The side gauge baffle 15 can slide along the length direction of the paper feed port 7. By adjusting the side gauge baffle 15, the size of the paper feed port 7 can be adjusted to adapt to papers of different widths and sizes, thereby enhancing adaptability.

[0024] In order to reduce the wear between the shafts, bearings 16 are provided between the guide flange 12 and the punch bottom flange shaft 3 and between the punch bottom flange shaft 3 and the push bottom rod 4 .

[0025] It should be understood that the present invention uses the terms "first", "second", etc. to describe various information, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information.

[0026] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A paper cup bottom punching and forming device, characterized in that: The invention comprises an installation vertical plate, a paper feed paper, a punching flange shaft, a bottom pushing rod, a punching knife seat and a punching knife lower die, wherein the paper feed paper is arranged on one side of the installation vertical plate, and the paper feed paper is provided with a paper feed port, the punching knife lower die and the punching knife seat are arranged on the outer side of the paper feed paper in sequence, the die cavity size of the punching knife lower die is larger than the die cavity size of the punching knife seat, the punching flange shaft is installed on the installation vertical plate perpendicular to the paper feed direction of the paper feed paper, one end of the punching flange shaft is connected to a first power source, the other end of the punching flange shaft is provided with a punching die head which cooperates with the punching knife lower die to punch paper, the bottom pushing rod is penetrated in the punching flange shaft, one end of the bottom pushing rod is connected to a second power source, the other end of the bottom pushing rod is provided with a bottom pushing die head which cooperates with the punching knife seat to fold the circumferential edge of the paper after punching, and the bottom pushing die head is slidably arranged in the punching die head; the punching knife seat and the punching knife lower die are connected to the paper feed paper through the punching knife holder; It also includes a guide flange, which is arranged on the mounting vertical plate, and the bottom punching flange shaft is passed through the guide flange; bearings are arranged between the guide flange and the bottom punching flange shaft, and between the bottom punching flange shaft and the bottom pushing rod; It also includes a paper guide mounting seat, the paper guide mounting seat is arranged between the mounting vertical plate and the paper feed paperboard, a sliding cavity is arranged in the paper guide mounting seat, and the bottom punching die head is slidably arranged in the sliding cavity; a paper guide baffle is arranged on the paper guide mounting seat, and the paper guide baffle is arranged at the paper feed port and arranged along the paper feed direction; A side gauge baffle is provided at the paper feed port, and the side gauge baffle can slide along the length direction of the paper feed port.

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