Paper pressing device of carton printing machine

By installing a pneumatic paper pressing device in the paper feeding section of the carton printing machine, the problems of cardboard warping and paper jamming were solved, the cardboard was precisely pressed, and the operating stability and efficiency of the printing machine were improved.

CN224091246UActive Publication Date: 2026-04-07REVOTECH TECH CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-12
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing cardboard printing machines lack paper pressing devices, causing cardboard to warp or jam, affecting normal machine operation and causing incalculable losses.

Method used

Design a paper pressing device for a carton printing machine, installed above the paper feeding section. It adopts a pneumatic pressing cylinder and an adjustable clamping structure, including a left baffle, a right baffle and a column. The spacing is adjusted by a motor-driven lead screw to ensure accurate pressing of the cardboard.

Benefits of technology

It effectively prevents cardboard from warping and paper jams, improves printing efficiency and speed, and enhances the machine's competitiveness.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a paper pressing device of a carton printing machine, which is mounted above a paper feeding part of the carton printing machine and comprises a mounting seat, a left baffle, a right baffle and a vertical column, the left baffle and the right baffle are used for clamping two sides of a carton, and the vertical column is positioned between the left baffle and the right baffle. The left baffle, the right baffle and the stand column are each provided with a downward-pressing air cylinder, and the end of each downward-pressing air cylinder is connected with a pressing disc. The paper pressing device of the carton printing machine can effectively prevent paper boards from being warped, clamped and the like in the paper feeding process, so that normal operation of the carton printing machine is guaranteed, and production efficiency is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the paper box printing machine accessory field, concretely relates to a paper box printing machine paper pressing device. BACKGROUND

[0002] The paper box printing machine is generally composed of a paper feeding unit, a printing unit, a slotting unit and a die cutting unit. The paper feeding unit generally adopts two feeding modes, chain feeding and front edge feeding.

[0003] 1. The chain feeding mode adopts gear transmission, and the paper is fed manually one by one, which is low in efficiency and cannot guarantee the color matching and feeding accuracy, and belongs to a low-end model. It is suitable for new factory customers with less investment.

[0004] 2. The front edge feeding mode is a relatively advanced technology, and most of the printing machines on the market adopt this feeding mode, which has good overstretching function and accurate feeding function. Its main advantage is that it can greatly reduce the pressure of the paper board on the paper board, thereby protecting the original compressive strength of the paper board. The feeding speed is much faster than that of the chain feeding mode.

[0005] The existing paper box printing machine lacks a related paper pressing device in the paper feeding unit, which may cause paper jamming and machine jamming due to paper lifting or paper length difference, and the machine cannot operate normally, causing irreparable loss. UTILITY MODEL CONTENT

[0006] In order to make up for the deficiencies in the prior art, the utility model provides a paper box printing machine paper pressing device, which can effectively prevent paper lifting, paper jamming and other conditions during paper feeding.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0008] A paper box printing machine paper pressing device is installed above the paper feeding unit of the paper box printing machine, comprising a mounting seat, a left baffle and a right baffle for clamping both sides of the paper box are arranged on the mounting seat, and a vertical column is arranged between the left baffle and the right baffle. A lower pressing cylinder is arranged on the left baffle, the right baffle and the vertical column, and a pressure disc is connected to the end of the lower pressing cylinder.

[0009] Further, the left baffle and the right baffle are slidably connected to the mounting seat, and an adjusting mechanism for adjusting the distance between the left baffle and the right baffle is arranged on the mounting seat.

[0010] Furthermore, the adjustment mechanism includes a sliding rod and a lead screw arranged in parallel. The lead screw is connected to a motor and has a positive tooth section and a negative tooth section. The left baffle is fixedly connected to the left slider, and the left slider is slidably connected to the sliding rod and threadedly connected to the positive tooth section of the lead screw. The right baffle is fixedly connected to the right slider, and the right slider is slidably connected to the sliding rod and threadedly connected to the negative tooth section of the lead screw.

[0011] Furthermore, the left baffle paper feeder has a left bend away from the right baffle on one side, and the right baffle paper feeder has a right bend away from the left baffle on one side.

[0012] Furthermore, there are two columns.

[0013] Compared with the prior art, the present invention has the following beneficial technical effects:

[0014] The paper pressing device of this utility model for a carton printing machine adopts a pneumatic pressing method, which can ensure that the cardboard is pressed down accurately and without error, preventing the cardboard from warping or jamming, thereby avoiding machine jamming, greatly improving the efficiency and speed of carton printing, and effectively enhancing the competitiveness of the product. Attached Figure Description

[0015] Fig. 1 This is a structural diagram of a paper pressing device for a carton printing machine according to this utility model.

[0016] Fig. 2 This is a diagram showing the usage state of a paper pressing device for a carton printing machine according to this utility model.

[0017] The components are: 100, paper feeding section; 200, cardboard; 1, mounting base; 2, left baffle; 3, right baffle; 4, column; 5, pressing cylinder; 6, pressure plate; 7, slide bar; 8, lead screw; 9, left slider; 10, right slider. Detailed Implementation

[0018] Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0019] Example 1

[0020] like Figs. 1-2As shown, a paper pressing device for a carton printing machine is installed above the paper feeding section 100 of the carton printing machine. It includes a mounting base 1, on which are mounted a left baffle 2 and a right baffle 3 to clamp the two sides of the carton, and two uprights 4 located between the left baffle 2 and the right baffle 3. Each of the left baffle 2, the right baffle 3, and the uprights 4 is equipped with a pressing cylinder 5, and a pressure plate 6 is connected to the end of each pressing cylinder 5.

[0021] The left baffle 2 and the right baffle 3 are slidably connected to the mounting base 1. The mounting base 1 is provided with an adjustment mechanism to adjust the distance between the left baffle 2 and the right baffle 3 to accommodate cardboard of different sizes.

[0022] The adjusting mechanism includes a parallel sliding rod 7 and a lead screw 8. The lead screw 8 is connected to a motor and has a forward-threaded section and a reverse-threaded section. A left baffle 3 is fixedly connected to a left slider 9, which is slidably connected to the sliding rod 7 and threadedly connected to the forward-threaded section of the lead screw 8. A right baffle 4 is fixedly connected to a right slider 10, which is slidably connected to the sliding rod 7 and threadedly connected to the reverse-threaded section of the lead screw 8. By driving the lead screw 8 to rotate forward or backward by the motor, the left slider 9 and the right slider 10 can rotate in opposite directions, thereby adjusting the distance between the left baffle 2 and the right baffle 3.

[0023] The left baffle 2 has a left bend on one side of the paper feed box, away from the right baffle 3, and the right baffle 3 has a right bend on one side of the paper feed box, away from the left baffle 2. The left and right bends form a V-shaped opening, which facilitates guiding the paperboard 200 into the paper pressing device.

[0024] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A paper pressing device for a carton printing machine, installed above the paper feeding section of the carton printing machine, characterized in that: The device includes a mounting base, on which a left baffle and a right baffle are provided to clamp the two sides of the carton, and a column located between the left baffle and the right baffle. Each of the left baffle, the right baffle, and the column is equipped with a pressing cylinder, and the end of the pressing cylinder is connected to a pressure plate.

2. The paper pressing device for a carton printing machine according to claim 1, characterized in that: The left baffle and the right baffle are slidably connected to the mounting base, and the mounting base is provided with an adjustment mechanism for adjusting the distance between the left baffle and the right baffle.

3. The paper pressing device for a carton printing machine according to claim 2, characterized in that: The adjusting mechanism includes a sliding rod and a lead screw arranged in parallel. The lead screw is connected to a motor and has a positive tooth section and a negative tooth section. The left baffle is fixedly connected to the left slider. The left slider is slidably connected to the sliding rod and threadedly connected to the positive tooth section of the lead screw. The right baffle is fixedly connected to the right slider. The right slider is slidably connected to the sliding rod and threadedly connected to the negative tooth section of the lead screw.

4. The paper pressing device for a carton printing machine according to claim 3, characterized in that: The left baffle paper feeder has a left bend away from the right baffle on one side, and the right baffle paper feeder has a right bend away from the left baffle on one side.

5. The paper pressing device for a carton printing machine according to claim 4, characterized in that: There are two columns.