Automatic punching device for paper containers and paper container with holes

Abstract

The utility model discloses a kind of paper container automatic punching device and hole paper container, paper container automatic punching device includes punching die frame and its paper feed platform, punching die frame is equipped with the punching upper plate and punching lower plate of mutual cooperation, punching lower plate is fixedly arranged on paper feed platform, and punching lower plate is equipped with hole-shaped cutting edge, punching upper plate can lift and act, and punching upper plate is equipped with guide needle, guide needle is matched with hole-shaped cutting edge, the air hole that is axially through is equipped in the guide needle, corresponding guide needle upper end is butt-jointed with gas inlet connector, punching lower plate below is equipped with waste discharge structure, the both sides of paper feed platform are equipped with paper feed limiting structure and elastic paper pressing structure;Hole paper container, including container bottom and container wall, the paper sheet of forming container bottom and / or container wall is punched by above-mentioned paper container automatic punching device.This utility model solves the problem of no hole, poor air permeability and other problems in traditional paper container processing, and realizes high-precision, high-efficiency, automatic punching process.

Description

Technical Field

[0001] This utility model relates to an improvement invention of paper containers and their processing equipment, and more particularly to an improvement invention of an automated punching device for paper containers and a perforated paper container. Background Technology

[0002] In the traditional manufacturing process of paper containers such as paper cups and bowls, the bottom paper or fan-shaped paper usually needs to go through multiple processes such as feeding, punching, and forming. However, these processes often lack a step of pre-punching the bottom paper or fan-shaped paper before punching. This lack results in the paper container having a sealed internal space after being fitted with a lid, affecting liquid drainage or ventilation performance, thus limiting its use in certain specific applications (such as packaging for granular foods like grapes and chestnuts that require ventilation and drainage).

[0003] However, most existing punching equipment has a simple stamping structure, which lacks precise positioning and stable clamping of paper sheets, and is prone to the following problems: inaccurate positioning: paper sheets shift during the paper feeding process, resulting in inaccurate hole positions; weak paper clamping: paper sheets shift or wrinkle during the punching process; difficulty in waste removal: punching waste cannot be removed in time, affecting continuous operation; fixed structure: the punching die frame is not adjustable and cannot adjust its front and rear positions. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an automated punching device for paper containers and a perforated paper container.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: An automated punching device for paper containers includes a punching die frame and a paper feeding platform. The punching die frame has a punching upper plate and a punching lower plate that cooperate with each other. The punching lower plate is fixedly mounted on the paper feeding platform and has a perforated cutting edge. The punching upper plate is movable and has a guide pin that punches with the perforated cutting edge. The guide pin has an axially penetrating air hole, and the upper end of the guide pin is connected to an air inlet connector. A waste discharge structure is provided below the punching lower plate. A paper feeding limiting structure and an elastic paper pressing structure are provided on both sides of the paper feeding platform.

[0006] The punching device is connected between the paper feeding device and the bottom paper or fan-shaped paper punching device.

[0007] The paper feeding limiting structure consists of limiting blocks positioned opposite each other on both sides of the paper feeding platform. The limiting blocks have limiting notches on their inner sides, through which the sides of the paper sheet pass.

[0008] The elastic paper-pressing structure is a paper-pressing spring, with the upper end of the corresponding paper-pressing spring fixed to the limiting block and the lower end of the paper-pressing spring contacting the paper feeding platform.

[0009] The punching plate is mounted on the lifting plate, which is slidably mounted on the lifting guide column. The upper end of the lifting guide column is provided with a fixing plate, and the fixing plate is provided with a cylinder, which is connected to the lifting plate in a transmission manner.

[0010] The lifting plate is provided with an annular air groove, which is connected to the upper end of each guide pin. The air inlet is located on the upper end of the lifting plate, and the air inlet is connected to the annular air groove. The air inlet and the guide pin are staggered.

[0011] The waste discharge structure is a waste discharge hopper connected to the lower end of the punching plate.

[0012] The punching die frame is equipped with a support frame, and the punching die frame can be moved back and forth and adjusted on the support frame.

[0013] A perforated paper container, comprising a container bottom and a container wall, characterized in that: the paper sheet forming the container bottom and / or container wall is punched by the aforementioned automated paper container punching device.

[0014] The beneficial effects of this utility model are that the improved automated punching device for paper containers and the perforated paper containers add a punching process before punching the bottom paper or fan-shaped paper, so that the bottom or side wall of the paper container has small holes for ventilation or drainage, which meets the requirements of food packaging, environmental protection containers and other application scenarios that require ventilation and drainage; the guide needle is provided with an axial through air hole, which is supplied with air through the air inlet connector, and can blow out the small round pieces after punching to achieve automatic waste discharge; equipped with a waste discharge hopper to ensure that punching waste is collected in a concentrated manner to avoid pollution or blockage of the equipment; limit blocks are set on both sides of the paper feeding platform to ensure stable feeding of the paper in the horizontal and vertical directions and avoid deviation, and with the help of an elastic paper pressing structure, a flexible pressing of the paper is formed, which effectively prevents the paper from wrinkling or sliding due to force during the punching process, thus improving the punching quality. Attached Figure Description

[0015] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the structure of the automated punching device for paper containers of this utility model.

[0017] Figure 2 The diagram shows the structure of the punching process for the automated punching device for paper containers of this utility model.

[0018] Figure 3 This is a structural diagram of the upper and lower punch plates of this utility model.

[0019] Figure 4 This is a structural diagram of the lifting plate of this utility model.

[0020] Figure 5 This is a structural diagram of a perforated paper container for practical use. Detailed Implementation

[0021] The accompanying drawings illustrate the structure of this utility model, and further details will be described below in conjunction with the drawings. In this embodiment, see the attached drawings. Figure 1 , 2 4. The automated punching device for paper containers includes a punching die frame 1 and a paper feeding platform 2. The punching die frame 1 is provided with a punching upper plate 3 and a punching lower plate 4 that cooperate with each other. The punching lower plate 4 is fixedly set on the paper feeding platform 2 and is flush with the paper feeding platform 2. The punching lower plate 4 is provided with a number of perforated cutting edges 5. The punching upper plate 3 can be raised and lowered and is provided with a number of guide pins 6. The guide pins 6 are punched and cut with the perforated cutting edges 5. The guide pins 6 are provided with axially penetrating air holes. The upper end of the corresponding guide pins 6 is connected to an air inlet connector 7. The punching lower plate 4 is provided with a waste discharge structure 8 below it. The paper feeding platform 2 is provided with a paper feeding limiting structure 9 and an elastic paper pressing structure 10 on both sides.

[0022] The working principle of this utility model is as follows: the unwound paper enters the paper feeding platform 2, the corresponding paper feeding limiting structure 9 restricts the lateral position of the paper, the elastic paper pressing structure 10 presses down the paper, the punching upper plate 3 and its guide pin 6 move down, the guide pin 6 cooperates with the hole-shaped cutting edge 5 on the punching lower plate 4 to complete the punching on the paper, the air inlet connector 7 blows air, and the small round pieces after punching are blown out to the waste discharge structure 8 through the air hole in the guide pin 6.

[0023] For a further improved implementation method, see Appendix Figure 2 The punching device is connected between the paper feeding device 11 and the bottom paper or fan-shaped paper punching device 12. That is, a punching process is added before the bottom paper or fan-shaped paper is punched to achieve precise and efficient punching. The paper feeding device 11 and the punching device 12 are existing structures and will not be described in detail here.

[0024] As a further improved specific implementation, the paper feeding limiting structure 9 is a limiting block that is relatively set on both sides of the paper feeding platform 2. The limiting block has a limiting notch on its inner side, and the side of the paper passes through the limiting notch to ensure stable feeding of the paper in the horizontal and vertical directions and avoid deviation.

[0025] As a further improved specific implementation, the elastic paper pressing structure 10 is a paper pressing spring, preferably a Z-shaped paper pressing spring. The upper end of the corresponding paper pressing spring is fixed on the limiting block, and the lower end of the paper pressing spring contacts the paper feeding platform 2 to flexibly press the paper. This effectively prevents the paper from wrinkling or sliding due to force during the punching process, thereby improving the punching quality.

[0026] As a further improved specific implementation, the punching upper plate 3 is disposed on the lifting plate 13, the lifting plate 13 is slidably disposed on the lifting guide column 14, the lower end of the lifting guide column 14 is fixed on the punching die frame 1, the upper end of the lifting guide column 14 is provided with a fixing plate 15, the fixing plate 15 is provided with a cylinder 16, the cylinder 16 is connected to the lifting plate 13 in a transmission, and the corresponding lifting plate 13, punching upper plate 3 and guide pin 6 are driven to rise and fall by the cylinder 16.

[0027] For a further improved implementation method, see Appendix Figure 4 The lifting plate 13 is provided with an annular air groove 17, which is connected to the upper end of each guide needle 6. The air inlet 7 is located on the upper end of the lifting plate 13 and is connected to the annular air groove 17. The air inlet 7 and the guide needle 6 are staggered to ensure uniform air blowing.

[0028] As a further improved specific implementation, the waste discharge structure 8 is a waste discharge hopper connected to the lower end of the punching lower plate 4, used to receive the round pieces blown out from inside the guide needle 6.

[0029] As a further improved specific implementation, the punching die frame 1 is equipped with a support frame, and the punching die frame 1 is adjustable and movable on the support frame, so that the punching die frame 1 can be moved as a whole and the front and rear positions can be adjusted.

[0030] In this embodiment, see Appendix Figure 5 A perforated paper container includes a container bottom 18 and a container wall 19. The paper sheet forming the container bottom and / or container wall is punched by the aforementioned paper container automated punching device, so that there are multiple small holes on the container bottom and / or container wall, so that the internal space of the paper container is not sealed after the lid is attached, and it can be used to hold some granular items that need to be breathable and drained (such as grapes and chestnuts).

[0031] In summary, the above are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. An automated punching device for paper containers, comprising a punching die frame and a paper feeding platform, characterized in that: The punching die frame is provided with a punching upper plate and a punching lower plate that cooperate with each other. The punching lower plate is fixedly set on the paper feeding platform and has a hole-shaped cutting edge. The punching upper plate can be raised and lowered and is provided with a guide pin. The guide pin is punched in cooperation with the hole-shaped cutting edge. The guide pin has an axially penetrating air hole. The upper end of the guide pin is connected to an air inlet connector. A waste discharge structure is provided below the punching lower plate. The paper feeding platform is provided with a paper feeding limiting structure and an elastic paper pressing structure on both sides.

2. The automated punching device for paper containers as described in claim 1, characterized in that: The punching device is connected between the paper feeding device and the bottom paper or fan-shaped paper punching device.

3. The automated punching device for paper containers as described in claim 1, characterized in that: The paper feeding limiting structure consists of limiting blocks positioned opposite each other on both sides of the paper feeding platform. The limiting blocks have limiting notches on their inner sides, through which the sides of the paper sheet pass.

4. The automated punching device for paper containers as described in claim 3, characterized in that: The elastic paper-pressing structure is a paper-pressing spring, with the upper end of the corresponding paper-pressing spring fixed to the limiting block and the lower end of the paper-pressing spring contacting the paper feeding platform.

5. The automated punching device for paper containers as described in claim 1, characterized in that: The punching plate is mounted on the lifting plate, which is slidably mounted on the lifting guide column. The upper end of the lifting guide column is provided with a fixing plate, and the fixing plate is provided with a cylinder, which is connected to the lifting plate in a transmission manner.

6. The automated punching device for paper containers as described in claim 5, characterized in that: The lifting plate is provided with an annular air groove, which is connected to the upper end of each guide pin. The air inlet is located on the upper end of the lifting plate, and the air inlet is connected to the annular air groove. The air inlet and the guide pin are staggered.

7. The automated punching device for paper containers as described in claim 1, characterized in that: The waste discharge structure is a waste discharge hopper connected to the lower end of the punching plate.

8. The automated punching device for paper containers as described in claim 1, characterized in that: The punching die frame is equipped with a support frame, and the punching die frame can be moved back and forth and adjusted on the support frame.

9. A perforated paper container, comprising a container bottom and container walls, characterized in that: The paper sheet forming the container bottom and / or container wall is punched by the paper container automated punching device according to any one of claims 1-8.

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