Corrugated paper slotting and cutting mechanism

Abstract

The utility model relates to the technical field of corrugated paper production and processing equipment, in particular to a corrugated paper slotting and cutting mechanism which comprises a knife rest body installed on a paperboard running line and an installation position arranged on the knife rest body, and a first cutting knife and a second cutting knife are arranged on the installation position in rows. A front-back position difference is formed between cutting edges of the first cutting knife and the second cutting knife in the paperboard running direction; cutter bodies of the two cutting knives are respectively inclined towards the outer side of the knife rest main body, so that the cutting edge cutting positions of the two cutting knives are inwards converged; the two cutting knives are matched in a front-and-back staggered mode for cutting, and a V-shaped groove is formed in the paperboard. According to the paperboard grooving machine, the two cutting knives which are arranged in rows are staggered front and back, the height difference is set for the cutting depth, extrusion resistance between the cutting knives and a paperboard is dispersed, resistance is reduced, the paperboard is prevented from wrinkling, the yield of the paperboard after grooving is high, the situation that blades are broken due to the fact that the resistance is too large can be avoided, and compared with a traditional mode, the blade can be protected.

Description

Technical Field

[0001] The utility model relates to the technical field of corrugated paper production and processing equipment, in particular to a corrugated paper slotting and cutting mechanism. Background Art

[0002] Cardboard is usually made of various plant fibers, mixed with one or more other non-plant fibers, and made on cardboard. As a traditional and indispensable packaging container, cardboard is widely used, represented by gray board and corrugated cardboard. When cardboard is processed into cartons, V-grooves on the edges need to be opened.

[0003] Among them, the gray board is a board with a higher density, and the cutting and grooving is a straight cutting type, which is cut by the extrusion between the blade and the board. The corrugated paper is hollow except for the wavy corrugated interlayer. Compared with the general gray board, the material is softer and easily deformed by force. If the cutting knife is still in a vertical position and cuts by extrusion, the blade will sink into the cutting surface and be clamped by the corrugated paper on the left and right sides, resulting in great resistance, difficult cutting, and the cutting surface is prone to wrinkling and unevenness.

[0004] In the prior art, when cutting corrugated paper, the blade of the cutting knife is inserted obliquely into the cardboard for cutting to reduce the extrusion resistance between the blade and the cardboard. However, since the cutting knives on both sides are parallel and facing each other, the waste paper strip to be cut in the middle is relatively narrow. When the blades on both sides are squeezed with the soft cardboard, the cut section is prone to wrinkling, causing running resistance to the blades. The wrinkled waste strips are prone to block the blades on both sides, increasing the cutting resistance of the blades and easily causing the blades to break; the wrinkled section leads to uneven V-groove end faces, and the processing yield of corrugated cardboard is low.

[0005] Therefore, the utility model provides a corrugated paper slotting and cutting mechanism to solve the problems existing in the prior art. Utility Model Content

[0006] The utility model aims to provide a corrugated paper slotting and cutting mechanism to solve the technical problems in the prior art that the cutting knives cut the corrugated paperboard in parallel, the cut surface and the paperboard are easy to wrinkle, the paperboard yield is low, and the blade is easily broken due to excessive obstruction.

[0007] The technical scheme of the utility model is: a corrugated paper slotting and cutting mechanism, comprising a knife holder body installed on a corrugated paperboard running line, and a mounting position arranged on the knife holder body, on which a first cutting knife and a second cutting knife are arranged in a row;

[0008] The cutting blades of the first cutting knife and the second cutting knife are provided with a front-to-rear position difference in the running direction of the corrugated cardboard; and the blades of the first cutting knife and the second cutting knife are respectively inclined toward the outside of the knife holder body, so that the cutting surfaces of the blades of the two cutting knives converge inward; the first cutting knife and the second cutting knife are staggered front and back to perform cutting, and a V-groove is opened on the corrugated cardboard.

[0009] Preferably, the installation position includes a first installation position and a second installation position; the first cutting knife is arranged on the first installation position, and the second cutting knife is arranged on the second installation position;

[0010] The first installation position and the second installation position are located on the same plane or on different planes on the tool head seat of the tool holder body.

[0011] Preferably, the first mounting position and the second mounting position are arranged on the same tool head seat of the tool holder body, or are located on a different tool head seat of the tool holder body.

[0012] Preferably, the cutting blades of the first cutting knife and the second cutting knife are provided with a height difference in the cutting depth direction; and the cutting blade arranged at the front side in the running direction of the corrugated cardboard is placed at a low position, and the trailing cutting blade is placed at a high position.

[0013] Preferably, the angle between the planes where the blade surfaces of the first cutting knife and the second cutting knife are located is 90-150 degrees.

[0014] Preferably, a first fixing member and a second fixing member, a first fine-adjusting member and a second fine-adjusting member are also installed on the tool holder body;

[0015] The first fixing member and the second fixing member fix the first cutting knife and the second cutting knife respectively, and the first fine-adjusting member and the second fine-adjusting member fine-adjust the inclination angles of the first cutting knife and the second cutting knife respectively.

[0016] Compared with the prior art, the advantages of the utility model are:

[0017] (1) The utility model forms a quadrilateral cutting processing area on the processing station by staggering two separate cutting knives front and back. Before cutting, the cutting knives on both sides have a pre-flattening effect on the waste strip in the middle. The staggered cutting can disperse the extrusion resistance between the cutting knives and the cardboard, reduce the resistance, and prevent the cardboard from wrinkling. The yield rate of the corrugated cardboard after slotting is high, and the blade can be prevented from being broken due to excessive resistance. Compared with the traditional method, the blade can be protected.

[0018] (2) The two separate cutting knives provided in this embodiment are staggered front and back, and the cutting depths of the two cutting knives when cutting the paperboard are tilted have a height difference, which further reduces the extrusion resistance between the blades on both sides and the paperboard, avoids wrinkling of the cut surface and waste strips, improves the yield rate, and avoids blade breakage due to large extrusion resistance between the paperboard and the blades. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0020] Figure 1 This is a schematic diagram of the overall structure of the corrugated paper slotting and cutting mechanism of the utility model;

[0021] Figure 2 This is a schematic diagram of the working of the slotting cutter mechanism of the utility model for slotting corrugated paper;

[0022] Figure 3 This is a front structural schematic diagram of the slotting and cutting knife mechanism of the utility model;

[0023] Figure 4 It is a schematic diagram of the side structure of the cutter head seat of the slotting cutter mechanism of the utility model;

[0024] Among them: 1. first cutting knife; 2. second cutting knife; 3. first fixing part; 4. second fixing part; 5. knife holder body; 6. corrugated cardboard; 7. V-groove; 8. waste strip; 9. third fixing part; 10. first fine-tuning part; 11. second fine-tuning part; 51. knife head seat; 52. knife handle. DETAILED DESCRIPTION

[0025] The following is a further detailed description of the present invention in conjunction with specific embodiments:

[0026] like Figure 1 As shown, a corrugated paper slotting and cutting mechanism comprises a tool holder body 5 and a mounting position arranged on the tool holder body 5, wherein two mounting positions are provided for mounting a first cutting knife 1 and a second cutting knife 2 correspondingly.

[0027] The tool holder body 5 includes a tool handle 52 and a tool head seat 51. The tail of the tool handle 52 is fixed, and the tool handle 52 and the tool head seat 51 are connected and fixed by a third fixing member 9. The tool head seat 52 and the first cutting knife 1 and the second cutting knife 2 thereon are arranged directly above the cutting processing station, and the extension direction of the cutting track of the first cutting knife 1 and the second cutting knife 2 is consistent with the movement direction of the corrugated cardboard 6 through the tool holder body 5.

[0028] When the cutting knives on both sides are installed, the cutting blades of the first cutting knife 1 and the second cutting knife 2 are provided with a front-to-rear position difference in the running direction of the corrugated board 6, as shown in the attached Figure 2As shown in the figure, the second cutting knife 2 on the left lags behind the first cutting knife 1 on the right; and the blades of the first cutting knife 1 and the second cutting knife 2 are respectively inclined toward the outside of the knife holder body 5, and the cutting surfaces of the cutting blades on both sides converge inward, and the side plan view is generally in an inverted "eight" shape.

[0029] The first cutting blade 1 and the second cutting blade 2 are mounted on the mounting positions of the blade holder body 5 through the first fixing member 3 and the second fixing member 4, respectively. Figure 3 As shown in the figure, the first fixing member 3 and the second fixing member 4 have the same structural composition, including a pressure plate for fixing the cutting knife body. After adjusting the angle, the blade is inserted into the corresponding installation gap reserved between the pressure plate and the knife holder body 5, and the bolt is rotated to lock and fix the blade; after the blade is installed, the inclination angle of the two blades can be fine-tuned by the first fine-tuning member 10 and the second fine-tuning member 11 to obtain a better cutting angle effect.

[0030] The angle between the planes where the blades of the first cutting knife 1 and the second cutting knife 2 are located is 90-150 degrees; and the thicker the cardboard, the larger the angle between the two cutting knives. For example, when there is no cardboard, the angle is 92 degrees; when there is cardboard to be cut, the angle is increased and can be set to 95 degrees or 98 degrees. When the cardboard is relatively thick, the angle is further increased, such as 100 degrees or 140 degrees.

[0031] The two cutting knives are staggered one after another. After the formal operation, they cut the board at an angle at the same time, cut off the waste strip 8 in the middle, and open the V groove 7. The front edge connection line and the rear edge connection line of the cutting knives on both sides, as well as the two cutting lines where the cutting board lands, constitute a quadrilateral cutting processing area as a whole. The staggered blades on both sides have a diagonal force on the waste strip 8 in the middle, flattening the waste strip 8 to a certain extent. What is important is that the front knife cuts first, so that one side of the waste strip 8 in the middle is tilted first, and then the second cutting knife 2 on the rear side is used to cut and separate the other side of the waste strip 8 from the cardboard, reducing the resistance caused by the extrusion of the board when the two blades cut in parallel. The resistance is reduced, and the cut surface is not easy to wrinkle.

[0032] On the one hand, the end face of the V-groove 7 of the plate does not wrinkle, which improves the yield rate. Correspondingly, on the other hand, the cut surface of the waste strip 8 does not wrinkle. The waste does not wrinkle and will not cause blockage to the blade. The blade runs more smoothly and is not easily blocked.

[0033] Among them, the mounting position is the mounting area of ​​the cutting knife on the blade seat 51, the first cutting knife 1 is mounted on the first mounting position, and the second cutting knife 2 is mounted on the second mounting position. The first mounting position and the second mounting position are located on the same plane or different planes on the blade seat 51 of the tool holder body 5.

[0034] In addition, the corrugated paper is transported smoothly, and the cutting knives on both sides can cooperate in cutting to disperse the extrusion resistance, so that the cardboard does not wrinkle. Compared with the traditional structure, it does not require external structural limitations and has a simpler structure.

[0035] Referring to Figure 2, the fixed positions of the first cutting knife 1 and the second cutting knife 2, the corresponding first mounting position and the second mounting position are located on different planes (at the edges on both sides) of the same cutter head seat; the first mounting position and the second mounting position can also be located on the same plane of the same cutter head seat, for example, both cutting knives are arranged at the bottom of the cutter head seat and extend from the bottom plane of the cutter head seat (not shown in the drawings); they can also be installed on two cutter head seats 51, that is, the cutting knives on both sides and the corresponding cutter head seats are independent of each other, as shown in Figure 2. Figure 4 In the embodiment, the cutting knives on both sides are mounted on blocks of the left and right knife head seats and are relatively staggered.

[0036] Furthermore, the cutting blades of the first cutting blade 1 and the second cutting blade 2 are provided with a height difference in the cutting depth direction, and the cutting blade provided at the front side in the running direction of the cardboard is low, and the cutting blade provided at the rear side is high. Since the cutting blades on both sides are staggered front and back, and there is a difference in cutting depth, the squeezing force between the blades on both sides and the board can be further reduced, the resistance can be reduced, and the cardboard can be prevented from wrinkling.

[0037] In summary, the utility model staggers two separate cutting knives front and back, and provides a height difference between the cutting depths, so as to disperse the extrusion resistance between the cutting knives and the cardboard, reduce the resistance, and prevent the cardboard from wrinkling. After slotting, the cardboard has a high yield rate, and can prevent the blade from breaking due to excessive resistance. Compared with the traditional method, it can protect the blade.

[0038] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with this technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, so it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model.

Claims

1. A corrugated paper slotting and cutting mechanism, characterized in that: It comprises a tool holder body installed on a corrugated cardboard running line, and a mounting position arranged on the tool holder body, on which a first cutting knife and a second cutting knife are arranged in a row; The cutting blades of the first cutting knife and the second cutting knife are provided with a front-to-rear position difference in the running direction of the corrugated cardboard; and the blades of the first cutting knife and the second cutting knife are respectively inclined toward the outside of the knife holder body, so that the cutting surfaces of the blades of the two cutting knives converge inward; the first cutting knife and the second cutting knife are staggered front and back to perform cutting, and a V-groove is opened on the corrugated cardboard.

2. A corrugated paper slotting and cutting mechanism according to claim 1, characterized in that: The installation position includes a first installation position and a second installation position; the first cutting knife is arranged on the first installation position, and the second cutting knife is arranged on the second installation position; The first installation position and the second installation position are located on the same plane or on different planes on the tool head seat of the tool holder body.

3. A corrugated paper slotting and cutting mechanism according to claim 2, characterized in that: The first mounting position and the second mounting position are arranged on the same tool head seat of the tool holder body, or are located on a tool head seat of a different body from the tool holder body.

4. A corrugated paper slotting and cutting mechanism according to claim 1, characterized in that: The cutting blades of the first cutting knife and the second cutting knife are provided with a height difference in the cutting depth direction; and the cutting blade arranged at the front side in the running direction of the corrugated cardboard is placed at a low position, and the trailing cutting blade is placed at a high position.

5. A corrugated paper slotting and cutting mechanism according to claim 1 or 4, characterized in that: The included angle between the planes where the blade surfaces of the first cutting knife and the second cutting knife are located is 90-150 degrees.

6. A corrugated paper slotting and cutting mechanism according to claim 1, characterized in that: A first fixing member and a second fixing member, a first fine-adjusting member and a second fine-adjusting member are also installed on the tool holder body; The first fixing member and the second fixing member fix the first cutting knife and the second cutting knife respectively, and the first fine-adjusting member and the second fine-adjusting member fine-adjust the inclination angles of the first cutting knife and the second cutting knife respectively.

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