Paperboard cutting device for packaging box processing

Abstract

The utility model discloses a paperboard cutting device for packaging box processing, and relates to cutting. The device is used for machines or universal parts for punching, punching, cutting, blanking or cutting off. The device comprises a rack; the sliding rails are fixedly mounted on the two sides of the rack; the knife rest is installed on the sliding rail in a sliding mode and can slide along the sliding rail, and a blade is installed on the knife rest; the moving part can drive the knife rest to slide on the sliding rail; and the adjusting part is arranged on the moving part and can adjust the inclination angle of the knife rest and the blade so as to change the cut-in angle for cutting the paperboard. By means of the sliding rail, the knife rest and the adjusting part, when a paperboard is cut, the knife rest and the blade cut the paperboard in an inclined mode, a cut-in angle exists between the knife rest and the blade and the paperboard, in the cutting process, force acting on an object can be partially decomposed in the inclined plane direction, force perpendicular to a cutting edge is reduced, more labor is saved in the cutting process, and the bearing capacity of the blade is reduced; the cutting edge can be protected, and the cutting edge is prevented from being curled.

Description

Technical Field

[0001] This utility model relates to cutting; machines or general parts used for punching, cutting, punching or slitting, specifically a cardboard cutting device for packaging box processing. Background Technology

[0002] When making packaging boxes, cardboard is often cut to the required size according to the designed style and dimensions, and then die-cut, glued, or bound. Cardboard cutting typically involves a preliminary cut, followed by trimming according to detailed dimensions. This is usually done using a cutting machine. Hydraulic paper cutters, a common type of paper cutting equipment, primarily utilize horizontally positioned blades powered by a hydraulic cylinder to cut the cardboard. Common hydraulic paper cutter blades are horizontally positioned. During cutting, the cardboard is placed on the worktable, and the blade's cutting edge is parallel to the cardboard's cutting surface. The blade moves downwards to cut the cardboard. Because the blade is parallel to the cardboard during cutting, the entire blade edge is in contact with the cardboard, resulting in a relatively large contact area. This makes cutting more laborious and prone to blade chipping, affecting the blade's lifespan. Utility Model Content

[0003] The purpose of this utility model is to provide a cardboard cutting device for packaging box processing, so as to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a cardboard cutting device for packaging box processing, comprising:

[0005] frame;

[0006] The slide rails are fixedly installed on both sides of the frame;

[0007] The tool holder is slidably mounted on a slide rail and can slide along the slide rail. The tool holder is equipped with a blade.

[0008] The movement section allows the knife holder to slide on the slide rail;

[0009] An adjustment section is provided on the moving part, which can adjust the tilt angle of the blade holder and the blade to change the cutting angle of the cardboard.

[0010] Preferably, the moving part includes a column, which is slidably mounted on the frame and located on the outside of the slide rail.

[0011] Preferably, the adjustment section includes:

[0012] The lead screw is rotatably mounted on the top of the column;

[0013] Two connecting seats are slidably installed in the slide rail, and have through threaded holes, and are rotatably installed together with the lead screw;

[0014] The tool holder is rotatably connected at one end to one of the connecting seats;

[0015] The slide bar is slidably connected to the other end of the tool holder, and the slide bar is rotatably connected to another connecting seat.

[0016] Preferably, the other end of the tool holder has a sliding hole that matches the slide rod, and a through threaded hole is provided in the sliding hole. A fastening bolt is installed in the threaded hole for fixing the slide rod.

[0017] Preferably, the frame is provided with a tool groove.

[0018] Preferably, a pad is fixedly installed at the top edge of the blade groove.

[0019] Preferably, a guide plate is fixedly installed on the rear side of the frame.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] This utility model, through a slide rail, a blade holder, and an adjustment unit, allows the blade holder and blade to cut the cardboard at an angle, creating a cutting angle between them. The part in contact with the cardboard forms a slope. During the cutting process, the force acting on the object is partially decomposed along the slope, reducing the force perpendicular to the blade. This makes cutting easier, reduces the stress on the blade, protects the blade, and prevents the blade from becoming chipped.

[0022] Furthermore, by setting an adjustment mechanism, the tilt angle of the blade holder and blade can be adjusted, which can be used to cut different types of cardboard with different hardness. Attached Figure Description

[0023] Figure 1 This is a structural diagram of the present utility model;

[0024] Figure 2 This utility model Figure 1 Enlarged view at point B in the middle;

[0025] Figure 3 This is a structural diagram of the adjusting part and the column of this utility model;

[0026] Figure 4 This is an exploded view of the adjusting part and the column of this utility model;

[0027] Figure 5 This utility model Figure 4 Enlarged view of point A in the middle;

[0028] Figure 6 This is a structural diagram showing the inclined blade holder and blade of this utility model;

[0029] Figure 7 This is a structural diagram of the guide plate of this utility model.

[0030] In the diagram: 1. Frame; 2. Slide rail; 3. Tool holder; 4. Pad strip; 5. Tool groove; 6. Guide plate; 7. Column; 8. Lead screw; 9. Connecting seat; 10. Slide rod; 11. Fastening bolt. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please refer to the figure. This embodiment discloses a cardboard cutting device for packaging box processing, including:

[0033] The machine frame 1 has a worktable on its upper surface, which is used to place the cardboard to be cut. The worktable also has a blade groove 5 and a pad strip 4. The pad strip 4 is made of silicone or rubber and is located at the edge of the blade groove 5. A placement slot for the pad strip 4 is provided on the worktable, the width of which is slightly smaller than the width of the pad strip 4. Because the pad strip 4 is deformable, it can be placed directly into the placement slot. After placement, the bottom of the pad strip 4 is compressed by the placement slot, ensuring that the pad strip will not fall off. During prolonged use, the pad strip 4 may age and deform due to the pressure from the cutting blade and the cardboard. This design facilitates the replacement of the pad strip 4. (Details are as follows...) Figure 1 As shown.

[0034] After the blade moves to its lowest limit position, the blade and cutting edge are located in the blade groove and do not contact the frame 1, thus avoiding the situation where the blade touches the frame 1 and is damaged.

[0035] There are two slide rails 2, each with a vertically arranged groove, and they are fixedly installed on the two side edges of the frame 1. Figure 1 As shown.

[0036] The tool holder 3 is slidably mounted in the slide groove of the slide rail 2, and the tool holder 3 can slide vertically along the slide rail 2, as shown in the following figure. Figure 2 As shown, the bottom of the knife holder 3 is detachably mounted with a cardboard cutting blade via bolts.

[0037] The motion unit includes a column 7, which is slidably mounted on the frame 1 and located outside the slide rail 2; and a drive unit capable of carrying the column 7. The connection between the column and the drive unit is the same as that of existing cutting devices and is prior art. For example, one can refer to the cutting machine or paper cutter of model DT498 from Hangzhou Liding Office Equipment Co., Ltd.

[0038] The frame 1 is also equipped with a pressing part for pressing the cardboard. The pressing part is also the existing technology, which uses a pneumatic rod to press the cardboard. The specific settings are the same as the existing technology. For details, please refer to the cutting machine or paper cutter of Hangzhou Liding Office Equipment Co., Ltd., model DT498.

[0039] The adjustment unit, installed on the column 7, can adjust the height of the blade holder and the blade, and can also change the tilt angle of the blade holder 3 and the blade, thereby changing the cutting angle of the blade cutting the cardboard (i.e., the angle perpendicular to the horizontal plane of the cardboard).

[0040] like Figures 3-6 As shown, the adjustment section specifically includes:

[0041] The lead screw 8 is rotatably mounted on the top of the column 7;

[0042] Two connecting seats 9 are slidably installed in two slide rails 2 respectively. Both connecting seats 9 have through threaded holes that match the lead screw 8 and are rotatably installed together with the lead screw 8. The two connecting seats 9 are connecting seat one and connecting seat two. One end of connecting seat one and the tool holder 3 are both provided with shaft holes. One end of the tool holder 3 is rotatably connected to connecting seat one by a pin, and connecting seat one has a margin for the tool holder 3 to rotate.

[0043] The slide rod 10 is rotatably connected to the connecting seat 2 (the connection method is also a pin-shaft rotatable connection, as described above). The slide rod 10 is slidably connected to the other end of the tool holder 3, and the specific structure is as follows:

[0044] The other end of the tool holder 3 has a sliding hole that matches the slide rod 10. The slide rod 10 is slidably inserted into the sliding hole. The side wall of the sliding hole has a through threaded hole. A fastening bolt 11 is installed in the threaded hole. The fastening bolt can fix the slide rod 10 and fix the slide rod 10 to the tool holder 3 together.

[0045] When it is necessary to adjust the tilt angle of the tool holder 3 and the blade, rotate the fastening bolt 11 to keep it loose, so that the fastening force on the slide rod 10 disappears, and the slide rod 10 can slide horizontally in the sliding hole. Then, rotate the screw 8 at the connecting seat 2 to make the connecting seat 2 move upward. The slide rod 10 will rotate around the pin on the connecting seat 2. At the same time, the slide rod 10 slides and extends outward in the sliding hole, and that end of the tool holder 3 rises. At the same time, the other end of the tool holder 3 rotates upward around the pin of the connecting seat 1. After adjusting to the required angle, stop the screw 8 at the connecting seat 2 and tighten the fastening bolt 11 to fix the slide rod 10 to the sliding hole. Since the tool holder 3 and the blade are connected by bolts, when the angle of the tool holder 3 is adjusted, the angle of the blade is adjusted simultaneously, and the angle adjustment of the tool holder 3 and the blade can be completed.

[0046] When rotating lead screw 8, as Figure 2 and Figure 4 As shown, since the connecting seat 9 is slidably installed in the slide rail 2, the slide rail 2 limits the connecting seat 9. When the lead screw 8 is rotated, the connecting seat 9 will not rotate with the lead screw 8. That is to say, under the limiting action of the slide rail 2, the lead screw 8 and the connecting seat 9 will rotate relative to each other, thereby adjusting the height of the connecting seat 9.

[0047] In this embodiment, the maximum tilt angle of the blade holder 3 and the blade is 30 degrees and the minimum is 0 degrees. By adjusting the tilt angle of the blade holder 3 and the blade, the cutting angle between the blade and the cardboard can be changed when cutting the cardboard. The blade cuts into the cardboard at an angle, and the part in contact with the cardboard forms a slope. During the cutting process, the force acting on the object will be partially decomposed along the slope, reducing the force perpendicular to the blade, thus making the cutting more effortless. At the same time, it can also protect the blade and extend its service life.

[0048] Furthermore, the blade is very thin. When the blade is tilted, the contact area between the blade and the object decreases, increasing the pressure per unit area and thus raising the pressure. This allows the cutting task to be completed with a smaller force.

[0049] For different types of cardboard, such as kraft paper, corrugated paper, or linerboard (these three types of paper are relatively hard), the angle of the blade can be adjusted to increase the angle, for example, an angle of 15 degrees, which will make cutting easier. For tea board paper, since it is relatively soft, the required cutting force is not large, and it can be cut directly without adjusting the angle.

[0050] When adjusting the height, it is necessary to adjust the lead screw 8 at both the first and second connecting seats simultaneously, so that the first and second connecting seats move up or down by the same distance at the same time, thereby adjusting the distance between the tool holder and the blade.

[0051] In a further embodiment, such as Figure 7 As shown, a guide plate 6 is fixedly installed on the rear side of the frame 1. The part of the guide plate 6 that overlaps with the frame 1 is located on the frame 1 directly below the blade. The cut waste cardboard can slide onto the guide plate 6 for collection, or be manually pushed onto the guide plate 6. Because the guide plate 6 is inclined, the cut waste cardboard will generally slide along the inclined surface of the guide plate under its own weight.

[0052] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cardboard cutting device for packaging box processing, characterized in that, include: frame; Slide rails are fixedly installed on both sides of the frame; The tool holder is slidably mounted on the slide rail and can slide along the slide rail; the tool holder is equipped with a blade. The movement section allows the knife holder to slide on the slide rail; An adjustment section is provided on the moving part, which can adjust the tilt angle of the blade holder and the blade to change the cutting angle of the cardboard.

2. The cardboard cutting device for packaging box processing according to claim 1, characterized in that: The moving part includes a column, which is slidably mounted on the frame and located on the outside of the slide rail.

3. The cardboard cutting device for packaging box processing according to claim 2, characterized in that: The adjustment unit includes: A lead screw is rotatably mounted on the top of the column; Two connecting seats are slidably installed in the slide rail, and have through threaded holes, and are rotatably installed together with the lead screw; The tool holder is rotatably connected at one end to one of the connecting seats; The slide bar is slidably connected to the other end of the tool holder, and the slide bar is rotatably connected to another connecting seat.

4. The cardboard cutting device for packaging box processing according to claim 3, characterized in that: The other end of the tool holder has a sliding hole that matches the slide rod. A through threaded hole is provided in the sliding hole, and a fastening bolt is installed in the threaded hole to fix the slide rod.

5. The cardboard cutting device for packaging box processing according to claim 1, characterized in that: The frame is provided with a tool groove.

6. The cardboard cutting device for packaging box processing according to claim 5, characterized in that: A pad is fixedly installed at the top edge of the blade groove.

7. The cardboard cutting device for packaging box processing according to claim 1, characterized in that: A guide plate is fixedly installed on the rear side of the frame.

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