Paperboard printing machine with grooving and line pressing functions

Abstract

The utility model discloses a paperboard printing machine with grooving and line pressing functions, which comprises a fixing frame, and a first material guide frame is arranged at the front part of the fixing frame; a second material guiding frame is further arranged on the front portion of the fixing frame, the second material guiding frame and the first material guiding frame are symmetrically arranged through the fixing frame, two supporting frames are arranged between the first material guiding frame and the second material guiding frame, and the two sides of the upper portions of the two supporting frames are each provided with a limiting plate; an upper transmission shaft is arranged in the fixing frame, a lower transmission shaft is arranged below the upper transmission shaft, the two sides of the upper transmission shaft are each provided with an arc-shaped grooving cutter, the outer sides of the arc-shaped grooving cutters on the two sides of the upper transmission shaft are each provided with a spring washer, and the spring washers are installed on the outer sides of the arc-shaped grooving cutters in a mode of inclining from outside to inside. And one end, close to the arc-shaped grooving cutter, of the spring washer is close to the upper end of a cutter notch of the arc-shaped grooving cutter.

Description

Technical Field

[0001] This utility model relates to the field of printing press technology, and in particular to a cardboard printing press that combines slotting and creasing. Background Technology

[0002] In the cardboard box manufacturing industry, the cardboard lid plays a crucial role in protecting the products inside the box, including load-bearing, dust protection, rain protection, and scratch prevention. It is typically machine-grooved and then stapled after being aligned with a triangular ruler to achieve a smooth fold of the three-dimensional material. Therefore, folding is an indispensable process. Traditional manual folding is time-consuming, labor-intensive, and produces irregular lines, significantly impacting production efficiency. While specialized cardboard printing equipment for folding exists, these machines are generally designed with more complex structures for this single step, greatly increasing the size of the production equipment. Other, more streamlined machines with different structures often add rollers next to the grooving knife to assist with folding. However, these also have drawbacks, such as the difficulty of repairing and replacing malfunctioning equipment, and the high cost of the equipment itself, often resulting in losses. Therefore, the key issue now is how to eliminate the manual folding process while integrating auxiliary folding mechanisms into the equipment, and how to make these mechanisms as streamlined and practical as possible.

[0003] Chinese utility model application CN202022274193.3 discloses a CNC fully automatic dust-free grooving machine, which includes a grooving machine body, support feet, a guiding mechanism, a drive mechanism, a mounting plate, and casters. Several support feet are fixed to the lower surface of the grooving machine body. The guiding mechanism includes a guide cylinder and a guide rod. The guide cylinder is fixed to the lower surface of the grooving machine body, the bottom end of the guide rod is fixed to the upper surface of the mounting plate, and the top end of the guide rod slides in conjunction with the guide cylinder. The casters are fixed to the lower surface of the mounting plate. This utility model does not solve the defects of the prior art. Utility Model Content

[0004] This invention aims to solve the problem of how to eliminate the traditional manual cardboard folding process and how to enable printing equipment to have cardboard folding function while avoiding overly complex structural modifications.

[0005] To address this, the present invention proposes a cardboard printing machine that combines grooving and creasing, comprising a fixed frame, a first guide frame at the front of the fixed frame, and a second guide frame at the front of the fixed frame, which are symmetrically arranged with the first guide frame via the fixed frame. Two support frames are provided between the first and second guide frames, and each of the two support frames has a limiting plate on its upper side. An upper drive shaft is provided inside the fixed frame, and a lower drive shaft is provided below the upper drive shaft. The invention is characterized in that: an arc-shaped grooving knife is provided on each side of the upper drive shaft, and a spring pad is provided on the outer side of each arc-shaped grooving knife. The spring pad is installed on the outer side of the arc-shaped grooving knife in an inclined manner from the outside to the inside, and the end of the spring pad near the arc-shaped grooving knife is close to the upper end of the groove of the arc-shaped grooving knife.

[0006] The effects are as follows: An arc-shaped grooving knife is installed on each side of the upper drive shaft, allowing the cardboard to be grooved from multiple angles, greatly increasing the tolerance for errors in cardboard grooving; a spring pad is installed on the outer side of each of the two arc-shaped grooving knives, causing the cardboard to form a virtual fold line along the groove after grooving. The smaller area of ​​the cardboard on the other side of the fold line is the folded part, and the folded part at the front end of the groove will curl upwards due to the resistance of the spring pad. The curled position is exactly at the innermost end of the cutting groove, and then a slanted crease line will naturally form on the grooved end of the cardboard. This crease line is easy to produce and the folding effect is as good as a manually made crease line; the inwardly slanted spring pad can make the cardboard curl upwards after grooving; placing one end of the spring pad near the upper end of the groove of the arc-shaped grooving knife can make the resulting crease line more obvious.

[0007] A further improvement is that the lower part of the fixing frame is provided with a guide rail.

[0008] The advantage is that the guide rail facilitates the installation of a movable waste collection box below the utility model, making cleaning and environmental protection easier.

[0009] A further improvement is that a collection frame is provided on the guide rail.

[0010] The effect is that the collection box can hold the debris and residue from the cardboard production process, making it easy to clean and environmentally friendly.

[0011] A further improvement is that a drive motor is provided on the side of the first guide frame, and a support plate is provided below the drive motor.

[0012] The benefits are: the drive motor is installed on the side of the first guide frame, which can save the equipment's floor space; the support plate installed below the drive motor can fix and support the motor.

[0013] A further improvement is that the spring pad material is made of foam plastic or rubber.

[0014] The effect is that the foam or rubber material is flexible and elastic, which prevents the grooved cardboard from being crushed and damaged, and ensures that the pressure of the folding creases is just right.

[0015] A further improvement is that the spring pad is detachable.

[0016] The benefits are: the removable spring pads greatly increase convenience, making it easier to replace or repair at any time. Beneficial effects

[0017] This invention solves the problem of eliminating the traditional manual cardboard folding process and enabling printing equipment to have cardboard folding functionality while avoiding overly complex structural modifications. This invention adds a spring pad next to the grooving knife, allowing it to perform both grooving and cardboard folding functions. This invention features a simple structure, eliminates manual folding steps, is inexpensive, and is easily replaceable, greatly increasing its overall practicality and significantly improving the user experience. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;

[0019] Attached Figure

[0020] In the diagram, 1 is the fixed frame, 2 is the upper drive shaft, 3 is the lower drive shaft, 4 is the arc-shaped grooving knife, 5 is the spring pad, 6 is the first guide frame, 7 is the limiting plate, 8 is the support frame, 9 is, 10 is, 11 is, 12 is the support plate, 13 is the drive motor, 14 is the collection frame, and 17 is the guide rail. Detailed Implementation

[0021] The following is in conjunction with the instruction manual. Figure 1 The technical solution and its beneficial effects of this utility model will be made clearer and more explicit through further description of the specific embodiments of this utility model.

[0022] This utility model provides a cardboard printing machine that combines grooving and creasing, including a fixed frame 1. The fixed frame 1 has a first guide frame 6 at its front and a second guide frame 9 at its front. The two guide frames 6 and the fixed frame 1 are symmetrically arranged. Two support frames 8 are provided between the first guide frame 6 and the second guide frame 9. Each of the two support frames 8 has a limiting plate 7 on its upper side. The fixed frame 1 has an upper drive shaft 2 inside and a lower drive shaft 3 below it. Each side of the upper drive shaft 2 has an arc-shaped grooving knife 4. Each side of the arc-shaped grooving knife 4 has a spring pad 5 on its outer side. The spring pad 5 is installed on the outer side of the arc-shaped grooving knife 4 at an inward tilt. The end of the spring pad 5 closest to the arc-shaped grooving knife 4 is close to the upper end of the groove of the arc-shaped grooving knife 4.

[0023] The lower part of the fixing frame 1 is provided with a guide rail 17.

[0024] The guide rail 17 is provided with a collection frame 14.

[0025] The first guide frame 6 has a drive motor 13 on its side and a support plate 12 below the drive motor 13.

[0026] The elastic pad 5 is made of foam plastic or rubber.

[0027] The spring pad 5 is detachable.

Claims

1. A cardboard printing machine that combines slotting and creasing, comprising a fixed frame (1), wherein a first guide frame (6) is provided at the front of the fixed frame (1); a second guide frame (9) is also provided at the front of the fixed frame (1), which is symmetrically arranged with the first guide frame (6) through the fixed frame (1), and two support frames (8) are provided between the first guide frame (6) and the second guide frame (9), and a limiting plate (7) is provided on each of the two upper sides of the two support frames (8); an upper drive shaft (2) is provided inside the fixed frame (1), and a lower drive shaft (3) is provided below the upper drive shaft (2), characterized in that: The upper drive shaft (2) is provided with an arc-shaped grooving knife (4) on each side. A spring pad (5) is provided on the outer side of the arc-shaped grooving knife (4) on each side. The spring pad (5) is installed on the outer side of the arc-shaped grooving knife (4) in an inclined manner from the outside to the inside. The end of the spring pad (5) close to the arc-shaped grooving knife (4) is close to the upper end of the groove of the arc-shaped grooving knife (4).

2. The cardboard printing machine combining slotting and creasing as described in claim 1, characterized in that: The lower part of the fixing frame (1) is provided with a guide rail (17).

3. The cardboard printing machine combining slotting and creasing as described in claim 2, characterized in that: The guide rail (17) is provided with a collection box (14).

4. The cardboard printing machine combining slotting and creasing as described in claim 1, characterized in that: The first guide frame (6) is provided with a drive motor (13) on its side, and a support plate (12) is provided below the drive motor (13).

5. The cardboard printing machine combining slotting and creasing as described in claim 1, characterized in that: The elastic pad (5) is made of foam plastic or rubber.

6. The cardboard printing machine combining slotting and creasing as described in claim 1 or 5, characterized in that: The spring pad (5) is detachable.

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