Cutting device for fiberboard

By designing arc-shaped air suction hoods and collection components in the fiberboard cutting device, the problem of untimely debris collection in the prior art is solved, efficient and safe debris treatment is achieved, and the safety and efficiency of the cutting process are improved.

CN120170848APending Publication Date: 2025-06-20JIANG SU XIN YI HU QIAN REN ZAO BAN ZHI ZAO YOU XIAN GONG SI
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Patent Information

Application Number
CN202510485464.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-17
Publication Date
2025-06-20

AI Technical Summary

Technical Problem

During the cutting process of existing fiberboard cutting devices, debris are not collected in time, the coverage is small, and the power is limited, resulting in cutting deviations and safety hazards.

Method used

A cutting device for fiberboard is designed, and a curved air suction hood is used to move synchronously with the cutting knife, and the timely collection and filtering of debris is combined with the collection component.

Benefits of technology

It realizes efficient and timely collection of debris, enhances safety, avoids debris diffusion and inhalation by the human body, and improves the safety and efficiency of the cutting process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a cutting device for a fiberboard, and relates to the technical field of fiberboard cutting, the cutting device comprises a bottom plate, the top of the bottom plate is provided with a through avoiding groove; the cutting knife is circular and is configured to move along the avoiding groove so as to cut the fiberboard on the bottom plate; the transverse driving assembly is used for driving the cutting knife to move along the avoiding groove; the arc-shaped air suction cover is arranged above the cutting knife and can synchronously move along with the cutting knife, an opening of the arc-shaped air suction cover faces the cutting knife, and the arc connection of the arc-shaped air suction cover is larger than the diameter of the cutting knife. According to the design, the arc-shaped air suction cover can synchronously move along with the cutting knife, it is guaranteed that chippings cut by the cutting knife are timely guided and collected into the collecting assembly by the arc-shaped air suction cover, the timeliness of chipping collection is enhanced, the situation that the chippings are not timely collected and are inhaled by the human body is avoided, and the use safety is improved. The device is reasonable in structure, capable of collecting chippings in time and high in safety.
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Description

Technical Field

[0001] The present invention relates to the technical field of fiberboard cutting, and particularly relates to a cutting device for fiberboard. Background Art

[0002] Fiberboard, also known as density board, is a man-made board made of wood fiber or other vegetable fiber as raw materials and applying urea-formaldehyde resin or other suitable adhesives. Fiberboard has the advantages of uniform material quality, small difference in longitudinal and transverse strength, and not easy to crack, and is widely used. A cutting device is required during the production process of fiberboard.

[0003] In the prior art, when the cutting device cuts the fiberboard, the cutting knife is generally fixed, and the cutting is completed by pushing the movement of the fiberboard. Since the fiberboard is formed by pressing the crushed raw materials in the later stage, there are a lot of fine chips during cutting. The existing adsorption system usually fixes the suction air pipe at the upper part and works continuously. However, the coverage range of this adsorption method is not large and the power is limited. Excessive power will cause cutting deviation, and the chips cannot be collected in time. Moreover, the chips spread and are inhaled by the human body, affecting physical health and having low safety. There is an urgent need for a cutting device for fiberboard to solve the above problems. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a cutting device for fiberboard to solve the problems proposed in the above background art. The structure of the present invention is reasonable, the chip collection is timely, and the safety is high.

[0005] In order to achieve the above purpose, the present invention is realized by the following technical solutions: A cutting device for fiberboard, comprising: A bottom plate, a through avoidance groove is opened at the top of the bottom plate; A cutting knife, which is circular and configured to move along the avoidance groove to cut the fiberboard on the bottom plate; A transverse driving assembly for driving the cutting knife to move along the avoidance groove; An arc-shaped suction hood is arranged above the cutting knife and can move synchronously with the cutting knife. The open end of the arc-shaped suction hood faces the cutting knife, and the arc connection of the arc-shaped suction hood is larger than the diameter of the cutting knife.

[0006] Furthermore, a U-shaped plate with an opening downward is arranged at the top of the bottom plate. A lifting driving electric push rod is arranged at the top of the U-shaped plate. A lifting plate located inside the U-shaped plate is arranged on the telescopic shaft of the lifting driving electric push rod. A collection assembly for collecting the chips drained by the arc-shaped suction hood is arranged on the arc-shaped suction hood. A transverse translation electric cylinder for driving the collection assembly to move synchronously with the cutting knife is arranged at the bottom of the lifting plate. The arc-shaped suction hood is communicated with the collection assembly.

[0007] Further, the collection component includes a collection box arranged at the bottom of the moving block of the horizontal translation electric cylinder. A filter screen is arranged inside the collection box, and a suction fan is arranged on the side wall of the collection box above the filter screen. A communication pipe communicating with the arc-shaped suction hood is arranged at the bottom of the collection box.

[0008] Further, a guiding inclined plate is arranged at the lower side of the inner wall of the collection box, and a sealing plate communicating with the lower end of the guiding inclined plate is arranged on the side wall of the collection box. One end of the communication pipe inside the collection box is L-shaped, and a conical air guiding plate is arranged at the position corresponding to the end of the communication pipe on the inner wall of the collection box.

[0009] Further, the arc-shaped suction hood includes a hollow arc-shaped plate arranged at the bottom of the communication pipe and directly above the cutting knife. A pair of baffles are symmetrically arranged at the bottom of the hollow arc-shaped plate. A diversion groove is formed between the pair of baffles and the hollow arc-shaped plate, and air suction holes are formed at the bottom of the hollow arc-shaped plate.

[0010] Further, the horizontal driving component includes a horizontal electric cylinder arranged at the bottom of the bottom plate. An installation plate is arranged at the bottom of the slider of the horizontal electric cylinder, and a cutting motor connected to the cutting knife is arranged on the side wall of the installation plate.

[0011] Further, a pressing component for pressing the fiberboard is arranged inside the U-shaped plate; The pressing component includes a pair of pressing electric push rods symmetrically arranged at the bottom of the lifting plate. A pressing plate is arranged between the bottom ends of the telescopic shafts of the pair of pressing electric push rods. A through groove for avoiding the cutting knife is formed at the bottom of the pressing plate, and the pressing plate is located below the arc-shaped suction hood.

[0012] Further, a conveying component for limiting the fiberboard is arranged at the top of the bottom plate; The conveying component includes an installation groove formed at the top of the bottom plate. A plurality of conveying rollers are arranged inside the installation groove. Fixing plates and limiting guide plates are sequentially arranged on both sides of the installation groove at the top of the bottom plate. An adjusting electric push rod is arranged on the side wall of the fixing plate, and an adjusting plate is arranged on the telescopic shaft of the adjusting electric push rod.

[0013] Further, the upper end surface of the conveying roller is flush with the upper end surface of the bottom plate, and the conveying direction of the conveying roller for the fiberboard is perpendicular to the moving direction of the cutting knife.

[0014] Further, connection seats are symmetrically arranged at the bottom of the bottom plate on both sides of the avoidance groove. A sliding groove is formed inside the connection seat, and a collection box is arranged inside the sliding groove.

[0015] The beneficial effects achieved by the present invention using the above structure are as follows: In the present invention, the arc-shaped air suction hood can move synchronously with the cutting knife, ensuring that the debris cut by the cutting knife is timely drained by the arc-shaped air suction hood into the collection assembly for collection, enhancing the timeliness and efficiency of debris collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] By reading the following detailed description of the non-limiting embodiments with reference to the accompanying drawings, other features, objects, and advantages of the present invention will become more apparent: Figure 1 FIG. 11 is a perspective view of a cutting device for fiberboard according to an embodiment of the present invention; Figure 2 FIG. 14 is a left side cross-sectional view of a cutting device for fiberboard according to an embodiment of the present invention; Figure 3 FIG. 17 is a cross-sectional perspective view of a cutting device for fiberboard according to an embodiment of the present invention; Figure 4 FIG. 20 is a front cross-sectional view of a cutting device for fiberboard according to an embodiment of the present invention; Figure 5 FIG. 23 is a perspective view of the connection between the lifting plate and the arc-shaped air suction hood in a cutting device for fiberboard according to an embodiment of the present invention; Figure 6 FIG. 26 is a perspective view of the connection between the horizontal driving assembly and the arc-shaped air suction hood in a cutting device for fiberboard according to an embodiment of the present invention; Figure 7 FIG. 29 is a perspective view of another angle of a cutting device for fiberboard according to an embodiment of the present invention; In the figure: 1, bottom plate; 1001, avoidance groove; 2, U-shaped plate; 3, lifting plate; 4, lifting driving electric push rod; 5, horizontal translation electric cylinder; 6, pressing assembly; 61, pressing electric push rod; 62, pressing plate; 63, through groove; 7, conveying assembly; 71, fixing plate; 72, adjusting electric push rod; 73, adjusting plate; 74, limiting and guiding plate; 75, conveying roller; 76, installation groove; 8, connecting seat; 9, collection box; 10, cutting knife; 11, arc-shaped air suction hood; 111, hollow arc plate; 112, baffle; 113, diversion groove; 114, air suction hole; 12, collection assembly; 121, collection box; 122, air suction fan; 123, filter screen; 124, conical air guiding plate; 125, connecting pipe; 126, guiding inclined plate; 127, sealing plate; 13, horizontal driving assembly; 131, horizontal electric cylinder; 132, mounting plate; 133, cutting motor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0018] As Figure 1 shown, an embodiment of the present invention provides a cutting device for fiberboard, including: A bottom plate 1, on the top of which a through avoidance groove 1001 is opened; A cutting knife 10, which is circular and configured to move along the avoidance groove 1001 to cut the fiberboard on the bottom plate 1; A transverse driving assembly 13 for driving the cutting knife 10 to move along the avoidance groove 1001; An arc-shaped air suction hood 11 is arranged above the cutting knife 10 and can move synchronously with the cutting knife 10. The open end of the arc-shaped air suction hood 11 faces the cutting knife 10, and the arc connection of the arc-shaped air suction hood 11 is larger than the diameter of the cutting knife 10. This design enables the arc-shaped air suction hood 11 to move synchronously with the cutting knife 10, ensuring that the debris cut by the cutting knife 10 is timely drained and collected by the arc-shaped air suction hood 11, enhancing the timeliness and efficiency of debris collection, avoiding the inhalation of debris by the human body due to untimely collection, and improving the safety of use.

[0019] Referring to Figure 1 and Figure 2 , a U-shaped plate 2 with an opening downward is arranged on the top of the bottom plate 1. A lifting drive electric push rod 4 is arranged on the top of the U-shaped plate 2. A lifting plate 3 located inside the U-shaped plate 2 is arranged on the telescopic shaft of the lifting drive electric push rod 4. A collection assembly 12 for collecting the debris drained by the arc-shaped air suction hood 11 is arranged on the arc-shaped air suction hood 11. A transverse translation electric cylinder 5 for driving the collection assembly 12 to move synchronously with the cutting knife 10 is arranged at the bottom of the lifting plate 3. The arc-shaped air suction hood 11 is communicated with the collection assembly 12. This design drives the lifting plate 3 to move in the vertical direction through the operation of the lifting drive electric push rod 4, and the movement of the lifting plate 3 drives the arc-shaped air suction hood 11 to move in the vertical direction, facilitating the adjustment of the height of the arc-shaped air suction hood 11.

[0020] Referring to Figure 2 and Figure 3, the collection component 12 includes a collection box 121 disposed at the bottom of the moving block of the horizontal translation cylinder 5. A filter net 123 is arranged inside the collection box 121, and a suction fan 122 is provided on the side wall of the collection box 121 above the filter net 123. A communicating pipe 125 communicating with the arc-shaped suction hood 11 is arranged at the bottom of the collection box 121. With the operation of the suction fan 122 in the collection component 12, the communicating pipe 125 generates a suction force acting on the arc-shaped suction hood 11, ensuring that the arc-shaped suction hood 11 can generate a suction force to suck in the debris. The debris moves along the communicating pipe 125 under the action of the filter net 123, and the debris remains inside the collection box 121, facilitating the collection of the debris and improving the timeliness of debris collection.

[0021] Referring to Figure 3 , a guiding inclined plate 126 is arranged on the lower side of the inner wall of the collection box 121, and a sealing plate 127 communicating with the lower end of the guiding inclined plate 126 is arranged on the side wall of the collection box 121. One end of the communicating pipe 125 located inside the collection box 121 is L-shaped, and a conical air guiding plate 124 is arranged at the position corresponding to the end of the communicating pipe 125 on the inner wall of the collection box 121. This design facilitates the dispersion and diversion of the debris sucked by the L-shaped communicating pipe 125 through the conical air guiding plate 124, preventing the debris from flowing back into the communicating pipe 125; by removing the sealing plate 127, the debris can flow out of the collection box 121 along the guiding inclined plate 126; among them, the communicating pipe 125 penetrates through the guiding inclined plate 126.

[0022] Referring to Figure 2 and Figure 5 , the arc-shaped suction hood 11 includes a hollow arc-shaped plate 111 arranged at the bottom of the communicating pipe 125 and directly above the cutting knife 10. A pair of baffle plates 112 are symmetrically arranged at the bottom of the hollow arc-shaped plate 111, and a diversion groove 113 is formed between the pair of baffle plates 112 and the hollow arc-shaped plate 111. Suction holes 114 are opened at the bottom of the hollow arc-shaped plate 111. This design facilitates the concentration of the debris through the diversion groove 113; through the suction holes 114, it is convenient for the debris to enter the inside of the hollow arc-shaped plate 111 along the diversion groove 113 and finally enter the inside of the communicating pipe 125.

[0023] Referring to Figure 3 and Figure 6 , the lateral driving component 13 includes a lateral cylinder 131 arranged at the bottom of the bottom plate 1. An installation plate 132 is arranged at the bottom of the slider of the lateral cylinder 131, and a cutting motor 133 connected to the cutting knife 10 is arranged on the side wall of the installation plate 132. With the operation of the lateral cylinder 131 in the lateral driving component 13, the installation plate 132 is driven to move laterally, and the movement of the installation plate 132 drives the cutting motor 133 to move laterally; among them, the lateral cylinder 131 moves synchronously with the horizontal translation cylinder 5, ensuring that the arc-shaped suction hood 11 can move synchronously with the cutting knife 10 and can timely collect the debris cut by the cutting knife 10.

[0024] Referring to Figure 1 and Figure 4 , a pressing assembly 6 for pressing the fiberboard is arranged inside the U-shaped plate 2; The pressing assembly 6 includes a pair of pressing electric push rods 61 symmetrically arranged at the bottom of the lifting plate 3. A pressing plate 62 is arranged between the bottoms of the telescopic shafts of the pair of pressing electric push rods 61. A through groove 63 for avoiding the cutting knife 10 is formed at the bottom of the pressing plate 62. The pressing plate 62 is located below the arc-shaped suction hood 11. This design drives the pressing plate 62 to move downward through the operation of the pressing electric push rod 61 in the pressing assembly 6. The pressing plate 62 moves downward and avoids the cutting knife 10 under the action of the through groove 63, which is convenient for pressing the fiberboard on both sides of the cutting knife 10 and improves the stability of the cutting knife 10 cutting the fiberboard; among them, the arc-shaped suction hood 11 can suck and clean the debris falling on the pressing plate 62. The width of the through groove 63 is greater than the width of the avoidance groove 1001, and the length of the through groove 63 is greater than or equal to the length of the avoidance groove 1001; among them, the distance between a pair of baffles 112 is greater than the width of the through groove 63. The diversion groove 113 is communicated with the hollow groove inside the hollow arc-shaped plate 111 through the suction hole 114, and the connecting pipe 125 is communicated with the hollow groove inside the hollow arc-shaped plate 111; the lengths of the through groove 63 and the avoidance groove 1001 are both greater than the moving distance of the cutting knife 10, avoiding interference between the cutting knife 10 and the bottom plate 1 and the pressing plate 62; the moving distance of the cutting knife 10 is limited by arranging a limit switch at the bottom of the bottom plate 1 to contact an induction plate arranged on the slider of the transverse electric cylinder 131, and the position of the slider of the transverse electric cylinder 131 is limited. When the induction plate contacts the limit switch, the slider of the transverse electric cylinder 131 stops moving, completing the limit adjustment of the moving distance of the cutting knife 10. The limit switch is U-shaped and at least two are provided.

[0025] Referring to Figure 1 , Figure 3 and Figure 7 , a conveying assembly 7 for limiting the fiberboard is arranged on the top of the bottom plate 1; The conveying assembly 7 includes a mounting groove 76 formed on the top of the bottom plate 1. A plurality of conveying rollers 75 are arranged inside the mounting groove 76. The top of the bottom plate 1 is successively provided with a fixing plate 71 and a limiting and guiding plate 74 located on both sides of the mounting groove 76. A regulating electric push rod 72 is arranged on the side wall of the fixing plate 71, and a regulating plate 73 is arranged on the telescopic shaft of the regulating electric push rod 72. This design facilitates the conveying of the fiberboard through the conveying rollers 75 in the conveying assembly 7, and facilitates the guiding of the fiberboard through the fixing plate 71 and the regulating plate 73, avoiding the fiberboard from tilting during conveying.

[0026] Referring to Figure 3 and Figure 7, the upper end surface of the conveying roller 75 is flush with the upper end surface of the bottom plate 1, and the conveying direction of the fiberboard by the conveying roller 75 is perpendicular to the moving direction of the cutting knife 10. This improves the rationality of the design.

[0027] Refer to Figure 1 and Figure 7 , on both sides of the avoidance groove 1001, connecting seats 8 are symmetrically arranged at the bottom of the bottom plate 1. A chute is provided inside the connecting seat 8, and a collection box 9 is arranged inside the chute. This design facilitates the collection of debris flowing out of the avoidance groove 1001 through the collection box 9; through the chute, it is convenient to take out and place the collection box 9, facilitating the dumping of the debris inside the collection box 9; among them, there is a gap between the connecting seat 8 and the end of the cutting motor 133 to prevent interference between the connecting seat 8 and the cutting motor 133.

[0028] Refer to Figures 1 - 7 , as an embodiment of the present invention: when the fiberboard needs to be cut, the staff places the fiberboard on the conveying roller 75, and under the action of the limit guiding plate 74 and the adjusting plate 73, the fiberboard is limited to prevent the fiberboard from tilting during the conveying process.

[0029] When the fiberboard moves to a suitable cutting position, the lifting drive electric push rod 4 works to drive the lifting plate 3 to move downward. The movement of the lifting plate 3 drives the horizontal translation electric cylinder 5 to move downward. The downward movement of the horizontal translation electric cylinder 5 drives the arc-shaped suction hood 11 on the collection component 12 to move downward to a suitable position; then, the pressing electric push rod 61 in the pressing component 6 works to drive the pressing plate 62 to move downward to contact the top of the fiberboard, completing the pressing on both sides of the cutting of the fiberboard and improving the stability of the cutting position.

[0030] The horizontal electric cylinder 131 in the horizontal drive component 13 works to drive the mounting plate 132 to move horizontally. The movement of the mounting plate 132 drives the cutting knife 10 on the cutting motor 133 to move horizontally. At the same time, the horizontal translation electric cylinder 5 works to drive the arc-shaped suction hood 11 on the collection component 12 to move horizontally, ensuring the synchronous movement of the arc-shaped suction hood 11 and the cutting knife 10. The cutting motor 133 works to drive the cutting knife 10 to rotate to cut the fiberboard.

[0031] During the cutting process, the suction fan 122 in the collection component 12 operates, and the connecting pipe 125 generates a suction force acting on the arc-shaped suction hood 11. The diversion grooves 113 and suction holes 114 of the arc-shaped suction hood 11 generate a suction force, and the debris enters the interior of the hollow arc-shaped plate 111 along the diversion grooves 113 and enters the interior of the collection box 121 along the connecting pipe 125. Under the action of the conical air deflector 124, the debris is dispersed; finally, under the action of the filter screen 123, the debris remains inside the collection box 121, facilitating the collection of the debris, improving the timeliness of debris collection, preventing the debris from being inhaled by the human body due to untimely collection, and enhancing the safety of use.

[0032] The foregoing has shown and described the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A fiberboard cutting device, characterized in that: include: A bottom plate (1), wherein a through avoidance groove (1001) is provided on the top of the bottom plate (1); The cutting blade (10) is circular and is configured to be movable along the avoidance groove (1001) to cut the fiberboard on the bottom plate (1); A transverse driving assembly (13) for driving the cutting knife (10) to move along the avoidance groove (1001); An arc-shaped air suction hood (11) is arranged above the cutting knife (10) and is capable of moving synchronously with the cutting knife (10); an opening of the arc-shaped air suction hood (11) faces the cutting knife (10); and an arc connection of the arc-shaped air suction hood (11) is larger than a diameter of the cutting knife (10).

2. The fiberboard cutting device according to claim 1, characterized in that: A U-shaped plate (2) with an opening facing downward is arranged on the top of the bottom plate (1), a lifting drive electric push rod (4) is arranged on the top of the U-shaped plate (2), a lifting plate (3) located inside the U-shaped plate (2) is arranged on the telescopic shaft of the lifting drive electric push rod (4), a collecting component (12) for collecting debris drained by the arc-shaped suction hood (11) is arranged on the arc-shaped suction hood (11), a transverse translation electric cylinder (5) for driving the collecting component (12) to move synchronously with the cutting knife (10) is arranged at the bottom of the lifting plate (3), and the arc-shaped suction hood (11) is connected to the collecting component (12).

3. The fiberboard cutting device according to claim 2, characterized in that: The collecting assembly (12) comprises a collecting box (121) arranged at the bottom of the moving block of the transverse translation electric cylinder (5); a filter screen (123) is arranged inside the collecting box (121); a suction fan (122) located above the filter screen (123) is arranged on the side wall of the collecting box (121); and a connecting pipe (125) connected to the arc-shaped suction cover (11) is arranged at the bottom of the collecting box (121).

4. The fiberboard cutting device according to claim 3, characterized in that: A guide inclined plate (126) is provided on the lower side of the inner wall of the collection box (121); a sealing plate (127) connected to the lower end of the guide inclined plate (126) is provided on the side wall of the collection box (121); one end of the connecting pipe (125) located inside the collection box (121) is L-shaped; and a conical air guide plate (124) is provided at a position of the inner wall of the collection box (121) corresponding to the end of the connecting pipe (125).

5. The fiberboard cutting device according to claim 3, characterized in that: The arc-shaped air suction hood (11) comprises a hollow arc-shaped plate (111) arranged at the bottom of the connecting pipe (125) and located directly above the cutting knife (10); a pair of baffles (112) are symmetrically arranged at the bottom of the hollow arc-shaped plate (111); a guide groove (113) is formed between the pair of baffles (112) and the hollow arc-shaped plate (111); and an air suction hole (114) is opened at the bottom of the hollow arc-shaped plate (111).

6. The fiberboard cutting device according to claim 1, characterized in that: The transverse drive assembly (13) comprises a transverse electric cylinder (131) arranged at the bottom of the base plate (1), a mounting plate (132) being arranged at the bottom of a slider of the transverse electric cylinder (131), and a cutting motor (133) connected to the cutting blade (10) being arranged on a side wall of the mounting plate (132).

7. The fiberboard cutting device according to claim 2, characterized in that: A pressing component (6) for pressing the fiberboard is arranged inside the U-shaped plate (2); The pressing assembly (6) comprises a pair of pressing electric push rods (61) symmetrically arranged at the bottom of the lifting plate (3); a pressing plate (62) is arranged between the bottoms of the telescopic shafts of the pair of pressing electric push rods (61); a through groove (63) for avoiding the cutting knife (10) is provided at the bottom of the pressing plate (62); and the pressing plate (62) is located below the arc-shaped suction hood (11).

8. The fiberboard cutting device according to claim 1, characterized in that: A conveying assembly (7) for limiting the position of the fiberboard is arranged on the top of the bottom plate (1); The conveying assembly (7) comprises a mounting groove (76) provided on the top of the base plate (1), a plurality of conveying rollers (75) being arranged inside the mounting groove (76), a fixing plate (71) and a limiting guide plate (74) being arranged on the top of the base plate (1) on both sides of the mounting groove (76), an adjusting electric push rod (72) being arranged on the side wall of the fixing plate (71), and an adjusting plate (73) being arranged on the telescopic shaft of the adjusting electric push rod (72).

9. The fiberboard cutting device according to claim 8, characterized in that: The upper end surface of the conveying roller (75) is flush with the upper end surface of the bottom plate (1), and the direction in which the conveying roller (75) conveys the fiberboard is perpendicular to the moving direction of the cutting knife (10).

10. The fiberboard cutting device according to claim 1, characterized in that: The bottom of the base plate (1) is symmetrically provided with connection seats (8) located on both sides of the avoidance groove (1001), a slide groove is provided inside the connection seat (8), and a collection box (9) is provided inside the slide groove.