A cutting device for corrugated cardboard

Abstract

The present invention relates to the technical field of cutting tools, and specifically to a cutting device for corrugated cardboard, which includes a frame, clamping plates, a saw blade and a guiding member. A cutting platform is provided on the frame, and the working surface of the cutting platform is horizontal. There are multiple clamping plates, and a tool feed groove is formed on the upper surface of the clamping plate, and the tool feed groove penetrates to the lower surface of the clamping plate. The present invention is provided with a saw blade and a guiding member. Under the guiding action of the guiding member, the saw blade can reciprocate between the left extreme position and the right extreme position. When the saw blade approaches the face paper of the corrugated cardboard that can be supported by the clamping plate, the saw blade moves to the right extreme position, and at this time, the saw blade cuts the face paper of the corrugated cardboard. When the saw blade approaches the face paper of the corrugated cardboard that cannot be supported by the clamping plate, the saw blade moves to the left extreme position, and at this time, the saw blade does not cut the face paper of the corrugated cardboard. Therefore, using this device can ensure that the face paper at the cut position is integrally flat.

Description

Technical Field

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

[0002] Corrugated cardboard is widely used in the packaging industry and is a common material for making cartons, gift boxes, and display boxes. Corrugated cardboard is usually composed of two outer papers and a corrugated core paper connected between the two outer papers. The outer paper is usually made of relatively thin but high-strength paper, and the corrugated core paper is mostly of a corrugated structure, providing buffering and supporting functions.

[0003] During the processing of corrugated cardboard, it needs to be cut according to actual requirements to cut the corrugated cardboard into appropriate sizes. Existing cutting devices that can be used for corrugated cardboard include band saws, wire saws, and reciprocating strip saws, etc. Among them, the reciprocating strip saw has the advantages of large cutting thickness, low cost, and simple operation, so it is widely used in the cutting of corrugated cardboard. When the strip saw cuts corrugated cardboard, due to the vertical reciprocating movement of the saw blade, the two outer papers of the corrugated cardboard at the cutting position are prone to edge collapse or outward curling under the continuous pressure of the saw blade. This will cause the overall compressive strength of the corrugated cardboard to decrease. Especially during stacking and transportation, the curled part is prone to uneven stress, increasing the risk of damage to the items inside the corrugated carton. Summary of the Invention

[0004] Based on this, in view of the problems existing in the current corrugated cardboard cutting device, it is necessary to provide a cutting device for corrugated cardboard to solve the problems during the cutting process of corrugated cardboard.

[0005] The above object is achieved through the following technical solutions:

[0006] A cutting device for corrugated cardboard includes:

[0007] A frame, on which a cutting platform is provided, and the working surface of the cutting platform is horizontal;

[0008] Clamping plates, there are multiple clamping plates, and a tool path groove is formed on the upper surface of the clamping plate, and the tool path groove penetrates through to the lower surface of the clamping plate;

[0009] The multiple clamping plates are arranged on the cutting platform at intervals in the vertical direction, and the distance between adjacent two clamping plates is the same and is adapted to the thickness of the corrugated cardboard;

[0010] A saw blade, which is connected to the frame and can reciprocate vertically in the tool path groove. The saw blade includes a strip-shaped plate and a plurality of saw teeth. The extension line in the length direction of the strip-shaped plate is perpendicular to the working surface of the cutting platform. The plurality of saw teeth are connected to the strip-shaped plate along the length direction of the strip-shaped plate, and the saw teeth are configured to be able to move between a left limit position and a right limit position along the width direction of the strip-shaped plate;

[0011] Guide members, there are multiple guide members, and the multiple guide members are connected to the multiple clamping plates in one-to-one correspondence, and the guide members are configured to drive the saw teeth to move to the right extreme position when the saw blade moves upward from bottom to top and the saw teeth approach the upper surface paper of the corrugated cardboard;

[0012] The guide members are further configured to drive the saw teeth to move to the left extreme position when the saw blade moves upward from bottom to top and the saw teeth approach the lower surface paper of the corrugated cardboard;

[0013] The guide members are further configured to drive the saw teeth to move to the right extreme position when the saw blade moves downward from top to bottom and the saw teeth approach the lower surface paper of the corrugated cardboard;

[0014] The guide members are further configured to drive the saw teeth to move to the left extreme position when the saw blade moves downward from top to bottom and the saw teeth approach the upper surface paper of the corrugated cardboard.

[0015] In one embodiment, the guide member includes a first guide roller, a second guide roller and a guide block. First guide grooves and second guide grooves are vertically and upwardly spaced from bottom to top on both the front and rear sides of the feed groove. Both ends of the first guide roller are slidably fitted in the first guide groove, both ends of the second guide roller are slidably fitted in the second guide groove, there are multiple guide blocks, and the multiple guide blocks are arranged in one-to-one correspondence on the tooth backs of the multiple saw teeth. Guide arcs are provided at the upper and lower edges of the guide block, and the middle part of the guide block can rollingly cooperate with the middle part of the first guide roller and the middle part of the second guide roller;

[0016] Both the first guide groove and the second guide groove include an arc groove section and a straight groove section, the arc groove section and the straight groove section are smoothly connected, the center line of the straight groove section is vertical, the two arc groove sections are respectively connected to one end of the two straight groove sections away from each other, and the arc groove section is located on the left side of the straight groove section;

[0017] Magnets are inlaid at the bottom of the straight groove section. Metal bodies are provided in both the first guide roller and the second guide roller. When the first guide roller and the second guide roller are disengaged from the guide block, under the magnetic attraction of the magnet and the metal body, the first guide roller abuts against the bottom of the straight groove section of the first guide groove, and the second guide roller abuts against the bottom of the straight groove section of the second guide groove.

[0018] In one embodiment, the first guide roller includes a guide rod and a guide ring, and the guide ring is rotatably connected to the middle part of the guide rod through a bearing;

[0019] The first guide roller and the second guide roller have the same structure.

[0020] In one embodiment, an elastic member is provided between the saw teeth and the strip plate, and the saw teeth are configured to be located at the left extreme position when the elastic member is not elastically deformed.

[0021] In one embodiment, the cutting device for corrugated cardboard further includes a first driving assembly, and the first driving assembly is used to drive the saw blade to reciprocate vertically in the feed groove.

[0022] In one embodiment, the first driving assembly includes a motor, a rotating wheel, an eccentric column, and a slider. The motor is arranged at the lower part of the frame, the output end of the motor is fixedly connected to the rotating wheel, the eccentric column is arranged at a non-central position of the rotating wheel, a sliding groove penetrating in the front-back direction is formed on the slider, the eccentric column is slidably connected in the sliding groove, the upper surface of the slider is fixedly connected to the lower end of the strip-shaped plate, two support plates are arranged at intervals in the left-right direction at the lower part of the frame, vertical guide grooves are formed on the inner sides of the two support plates, and the left and right ends of the slider are slidably connected in the vertical guide grooves.

[0023] In one embodiment, the distance between two adjacent clamping plates can be increased or decreased synchronously.

[0024] In one embodiment, multiple clamping plates are connected by a scissor hinge structure, and the distance between two adjacent clamping plates can be increased or decreased synchronously through the scissor hinge structure.

[0025] In one embodiment, the cutting device for corrugated cardboard further includes a second driving assembly. There are two groups of the second driving assemblies, and the two groups of second driving assemblies are respectively arranged at the front and rear ends of the clamping plates. The second driving assembly is used to drive the uppermost clamping plate to move vertically, so that the distance between two adjacent clamping plates can be increased or decreased synchronously.

[0026] In one embodiment, the second driving assembly includes a first support rod, a second support rod, a connecting plate, and a hydraulic rod. The first support rod and the second support rod are arranged at intervals in the left-right direction on the cutting platform, and both the first support rod and the second support rod penetrate through the clamping plate. The upper ends of the first support rod and the second support rod are connected by the connecting plate, the fixed end of the hydraulic rod is arranged on the lower surface of the connecting plate, and the telescopic end of the hydraulic rod is arranged on the upper surface of the uppermost clamping plate.

[0027] The beneficial effects of the present invention are:

[0028] The present invention is provided with a saw blade and a guide member. Under the guiding action of the guide member, the saw blade can reciprocate between a left limit position and a right limit position. When the saw blade approaches the face paper of the corrugated cardboard that can be supported by the clamping plate, the saw blade moves to the right limit position, at which time the saw blade cuts the face paper of the corrugated cardboard. When the saw blade approaches the face paper of the corrugated cardboard that cannot be supported by the clamping plate, the saw blade moves to the left limit position, at which time the saw blade does not cut the face paper of the corrugated cardboard. Therefore, the use of the device can ensure that the face paper at the cutting position is overall flat and is not prone to edge collapse or outward curling, thereby ensuring that the overall compressive strength of the corrugated cardboard will not decrease. During stacking and transportation, the corrugated cardboard is subjected to uneven force at various locations, thereby reducing the risk of damage to items in the corrugated cardboard box. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is an overall schematic diagram of a cutting device for corrugated paperboard of the present invention;

[0030] Figure 2 for Figure 1 A schematic diagram of the enlarged structure in the middle;

[0031] Figure 3 It is a front view of a cutting device for corrugated cardboard of the present invention;

[0032] Figure 4 This is a schematic structural diagram of a first driving assembly used in a corrugated paperboard according to the present invention;

[0033] Figure 5 A half-section axonometric view of a saw blade in a cutting device for corrugated cardboard according to the present invention;

[0034] Figure 6 for Figure 5 Schematic diagram of the enlarged structure at B in the middle;

[0035] Figure 7 It is a schematic diagram of the position of a guide arc in a cutting device for corrugated paperboard of the present invention;

[0036] Figure 8 It is a schematic diagram of the connection between a debris collection chamber and a negative pressure suction pipe in a cutting device for corrugated cardboard of the present invention;

[0037] Figure 9 for Figure 8 Schematic diagram of the enlarged structure at C in the middle;

[0038] Figure 10 for Figure 9 Schematic diagram of the enlarged structure at D in the middle;

[0039] Figure 11 It is a structural schematic diagram of a first guide roller in a cutting device for corrugated paperboard of the present invention;

[0040] Figure 12 This is a schematic diagram of the cutting state of a cutting device for corrugated cardboard according to the present invention.

[0041] Among them:

[0042] 100, frame; 110, cutting platform;

[0043] 200, clamping plate; 210, tool feed groove; 220, debris collection cavity; 230, negative pressure suction pipe;

[0044] 300, saw blade; 310, strip plate; 320, saw teeth; 321, inner groove; 330, connecting frame;

[0045] 400, guiding member; 410, first guiding roller; 411, guiding rod; 412, guiding ring; 420, second guiding roller; 430, guiding block; 431, guiding arc; 440, first guiding groove; 441, arc groove section; 442, straight groove section; 450, second guiding groove;

[0046] 500, first driving assembly; 510, motor; 520, rotating wheel; 530, eccentric column; 540, slider; 541, sliding groove; 550, support plate;

[0047] 600, second driving assembly; 610, first support rod; 620, second support rod; 630, connecting plate; 640, hydraulic rod;

[0048] 700, corrugated cardboard. Specific embodiments

[0049] In order to make the objectives, technical solutions and advantages of the present invention more clear and understandable, the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0050] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meanings. The terms "connection" and "coupling" used in this application, unless otherwise specified, both include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

[0051] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0052] As Figures 1 - 12 shown, a cutting device for corrugated cardboard includes a frame 100, clamping plates 200, a saw blade 300 and guide members 400. A cutting platform 110 is provided on the frame 100, and the working surface of the cutting platform 110 is horizontal. There are multiple clamping plates 200. A tool feed groove 210 is formed on the upper surface of the clamping plate 200 and penetrates through to the lower surface of the clamping plate 200. The multiple clamping plates 200 are arranged at intervals in the vertical direction on the cutting platform 110. The distance between two adjacent clamping plates 200 is the same and is adapted to the thickness of the corrugated cardboard. The saw blade 300 is connected to the frame 100 and the saw blade 300 can reciprocate in the vertical direction within the tool feed groove 210. The saw blade 300 includes a strip-shaped plate 310 and a plurality of saw teeth 320. The extension line in the length direction of the strip-shaped plate 310 is perpendicular to the working surface of the cutting platform 110. The plurality of saw teeth 320 are connected to the strip-shaped plate 310 along the length direction of the strip-shaped plate 310, and the saw teeth 320 are configured such that they can move between a left limit position and a right limit position along the width direction of the strip-shaped plate 310. There are multiple guide members 400. The multiple guide members 400 are connected to the multiple clamping plates 200 in a one-to-one correspondence. And the guide members 400 are configured such that when the saw blade 300 moves upward from bottom and the saw teeth 320 approach the upper surface paper of the corrugated cardboard, the guide members 400 drive the saw teeth 320 to move to the right limit position. The guide members 400 are further configured such that when the saw blade 300 moves upward from bottom and the saw teeth 320 approach the lower surface paper of the corrugated cardboard, the guide members 400 drive the saw teeth 320 to move to the left limit position. The guide members 400 are further configured such that when the saw blade 300 moves downward from top and the saw teeth 320 approach the lower surface paper of the corrugated cardboard, the guide members 400 drive the saw teeth 320 to move to the right limit position. The guide members 400 are further configured such that when the saw blade 300 moves downward from top and the saw teeth 320 approach the upper surface paper of the corrugated cardboard, the guide members 400 drive the saw teeth 320 to move to the left limit position.

[0053] During use, the staff makes the distance between two adjacent clamping plates 200 the same and adapted to the thickness of the corrugated cardboard 700. Then, multiple corrugated cardboards 700 are successively loaded into the gap between the clamping plates 200 and aligned. At this time, the face papers on the upper and lower surfaces of the corrugated cardboard 700 are in contact with the upper and lower surfaces of the clamping plates 200. Next, the saw blade 300 reciprocates vertically in the feed groove 210. Then, the staff pushes the corrugated cardboard 700 to move horizontally to the left. When the saw blade 300 moves upward from bottom to top and the saw teeth 320 approach the upper face paper of the corrugated cardboard 700, the guiding member 400 drives the saw teeth 320 to move to the right extreme position. At this time, the cutting edge of the saw teeth 320 is directly below the upper face paper of the corrugated cardboard 700. As the saw blade 300 continues to move vertically upward, the cutting edge of the saw teeth 320 contacts the upper face paper of the corrugated cardboard 700 and cuts the upper face paper of the corrugated cardboard 700. It can be understood that although the upper face paper of the corrugated cardboard 700 is subjected to a relatively large upward force from the saw teeth 320 at this time, since the upper face paper of the corrugated cardboard 700 is supported by the clamping plate 200 in contact with it, the upper face paper of the corrugated cardboard 700 will not curl upward. When the saw blade 300 moves upward from bottom to top and the saw teeth 320 approach the lower face paper of another corrugated cardboard 700, the guiding member 400 drives the saw teeth 320 to move to the left extreme position. At this time, the cutting edge of the saw teeth 320 is not directly below the lower face paper of this corrugated cardboard 700. Therefore, the cutting edge of the saw teeth 320 only cuts the corrugated core cardboard located between the two face papers. When the saw teeth 320 contact the lower face paper of this corrugated cardboard 700, the lower face paper of this corrugated cardboard 700 is subjected to a very small upward force from the saw teeth 320. Therefore, the lower face paper of this corrugated cardboard 700 will not be cut by the cutting edge of the saw teeth 320. Therefore, the lower face paper of the corrugated cardboard 700 will not curl either. Similarly, when the saw blade 300 moves downward from top to bottom and the saw teeth 320 approach the lower face paper of the corrugated cardboard 700, the guiding member 400 drives the saw teeth 320 to move to the right extreme position. At this time, the cutting edge of the saw teeth 320 is directly above the lower face paper of the corrugated cardboard 700. As the saw blade 300 continues to move vertically downward, the cutting edge of the saw teeth 320 contacts the lower face paper of the corrugated cardboard 700 and cuts the lower face paper of the corrugated cardboard 700. It can be understood that although the lower face paper of the corrugated cardboard 700 is subjected to a relatively large downward force from the saw teeth 320 at this time, since the lower face paper of the corrugated cardboard 700 is also supported by the clamping plate 200 in contact with it, the lower face paper of the corrugated cardboard 700 will not curl downward. When the saw blade 300 moves downward from top to bottom and the saw teeth 320 approach the upper face paper of another corrugated cardboard 700, the guiding member 400 drives the saw teeth 320 to move to the left extreme position. At this time, the cutting edge of the saw teeth 320 is not directly above the upper face paper of this corrugated cardboard 700. Therefore, the saw teeth 320 only cut the corrugated core paper located between the two face papers.When the tooth edge of the saw teeth 320 contacts the upper facing paper of the corrugated board 700, the upward force from the saw teeth 320 on the upper facing paper of the corrugated board 700 is very small. Therefore, the upper facing paper of the corrugated board 700 will not be cut, and thus the upper facing paper of the corrugated board 700 will not curl. In summary, as the saw blade 300 reciprocates vertically in the feed groove 210 and the corrugated board 700 moves horizontally to the left, the corrugated board 700 is gradually cut by the saw blade 300. The facing paper at the cut position is flat as a whole, and it is not easy to have the phenomenon of edge collapse or outward curling, thereby ensuring that the overall compressive strength of the corrugated board will not decrease. During the stacking and transportation process, the forces on each part of the corrugated board 700 are uneven, thereby reducing the risk of damage to the items in the corrugated carton.,

[0054] It can be understood that when the saw teeth 320 are at the left extreme position, the saw teeth 320 only contact the cut side surface of the corrugated board 700. Therefore, the force from the saw teeth 320 on the facing paper of the corrugated board 700 is very small. When the saw teeth 320 are at the right extreme position, the saw teeth 320 contact the non-cut position of the facing paper of the corrugated board 700. Therefore, the force from the saw teeth 320 on the facing paper of the corrugated board 700 will be very large, and thus the facing paper of the corrugated board 700 is cut.

[0055] In a further embodiment, such as Figure 6 、 Figure 7 、 Figure 10 and Figure 12As shown in the figure, the guiding member 400 includes a first guiding roller 410, a second guiding roller 420 and a guiding block 430. On both the front and rear sides of the feed groove 210, a first guiding groove 440 and a second guiding groove 450 are provided at intervals along the vertical direction from bottom to top. Both ends of the first guiding roller 410 are slidably fitted in the first guiding groove 440, and both ends of the second guiding roller 420 are slidably fitted in the second guiding groove 450. There are multiple guiding blocks 430, and the multiple guiding blocks 430 are correspondingly arranged on the tooth backs of the multiple saw teeth 320. Guiding arcs 431 are provided at the upper and lower edges of the guiding block 430. The middle part of the guiding block 430 can rollingly cooperate with the middle parts of the first guiding roller 410 and the second guiding roller 420. Both the first guiding groove 440 and the second guiding groove 450 include an arc groove section 441 and a straight groove section 442. The arc groove section 441 and the straight groove section 442 are smoothly connected. The center line of the straight groove section 442 is vertical. The two arc groove sections 441 are respectively connected to the ends of the two straight groove sections 442 away from each other, and the arc groove section 441 is located on the left side of the straight groove section 442. A magnet is inlaid at the bottom of the straight groove section 442. Metal bodies are provided in both the first guiding roller 410 and the second guiding roller 420. When the first guiding roller 410 and the second guiding roller 420 are disengaged from the guiding block 430, under the magnetic attraction of the magnet and the metal body, the first guiding roller 410 abuts against the bottom of the straight groove section 442 of the first guiding groove 440, and the second guiding roller 420 abuts against the bottom of the straight groove section 442 of the second guiding groove 450.

[0056] When the saw blade 300 moves upward from bottom to top and the saw teeth 320 approach the lower surface paper of the corrugated board 700, since the second guiding roller 420 is at the bottom of the straight groove section 442 of the second guiding groove 450 at this time, the second guiding roller 420 is pushed into the arc groove section 441 by the saw teeth 320. Therefore, the cutting edge of the saw tooth 320 is not directly below the lower surface paper of the corrugated board 700, so the cutting edge of the saw tooth 320 will not cut the lower surface paper of the corrugated board 700.

[0057] As the saw blade 300 continues to move upward from bottom to top and the saw teeth 320 approach the upper surface paper of the corrugated board 700, at this time the guiding block 430 pushes the first guiding roller 410 to continue moving upward along the straight groove section 442. However, the first guiding roller 410 has already abutted against the upper bottom of the straight groove section 442. Therefore, the first guiding roller 410 in turn pushes the guiding block 430 and the saw teeth 320 to move to the right extreme position. At this time, the cutting edge of the saw tooth 320 is directly below the lower surface paper of the corrugated board 700. As the saw blade 300 continues to move upward from bottom to top, the upper surface paper of the corrugated board 700 is cut open.

[0058] When the saw blade 300 moves downward and the saw teeth 320 approach the upper facing paper of the corrugated board 700, since the second guiding roller 420 is at the bottom of the straight groove section 442 of the second guiding groove 450 at this time, the second guiding roller 420 is pushed by the guiding block 430 into the arc groove section 441 of the second guiding groove 450. Therefore, the cutting edge of the saw teeth 320 is not directly above the upper facing paper of the corrugated board 700, so the cutting edge of the saw teeth 320 will not cut the upper facing paper of the corrugated board 700.

[0059] As the saw blade 300 continues to move downward, the saw teeth 320 approach the lower facing paper of the corrugated board 700. At this time, the guiding block 430 pushes the second guiding roller 420 to continue moving upward along the straight groove section 442. However, the second guiding roller 420 has abutted against the upper bottom of the straight groove section 442. Therefore, the second guiding roller 420 in turn pushes the guiding block 430 and the saw teeth 320 to move to the right extreme position. At this time, the cutting edge of the saw teeth 320 is directly above the lower facing paper of the corrugated board 700. As the saw blade 300 continues to move downward, the lower facing paper of the corrugated board 700 is cut open.

[0060] It should also be added that the magnet and the metal body are provided so that when the first guiding roller 410 and the second guiding roller 420 do not contact the saw teeth 320, they can automatically reset to the position where they abut against the bottom of the straight groove end of the corresponding first guiding groove 440 or second guiding groove 450.

[0061] In a further embodiment, as Figure 11 shown, the first guiding roller 410 includes a guiding rod 411 and a guiding ring 412. The guiding ring 412 is rotatably connected to the middle part of the guiding rod 411 through a bearing. The structures of the first guiding roller 410 and the second guiding roller 420 are the same.

[0062] The guiding ring 412 is rotatably connected to the guiding rod 411 to prevent serious local wear of the guiding ring 412. It should also be added that, similarly, in order to prevent excessive wear at both ends of the guiding rod 411, wear-resistant materials need to be plated on both ends of the guiding rod 411.

[0063] In a further embodiment, an elastic member is provided between the saw teeth 320 and the strip plate 310. The saw teeth 320 are configured to be in the left extreme position when the elastic member is not elastically deformed.

[0064] The elastic member is provided to reset the saw teeth 320 to the left extreme position when the connecting frame 330 does not contact the first guiding roller 410 or the second guiding roller 420.

[0065] It should also be added that the elastic member can specifically be a compression spring or a spring plate. When the elastic member is a compression spring, the axis of the compression spring is horizontal, one end of the compression spring is arranged on the side surface of the saw teeth 320, and the other end of the compression spring is arranged on the side surface of the strip plate 310.

[0066] In a further embodiment, as Figure 3 and Figure 4 shown, a cutting device for corrugated cardboard further includes a first driving assembly 500. The first driving assembly 500 is used to drive the saw blade 300 to reciprocate vertically in the feed groove 210. The first driving assembly 500 includes a motor 510, a rotating wheel 520, an eccentric column 530, and a slider 540. The motor 510 is arranged at the lower part of the frame 100, the output end of the motor 510 is fixedly connected to the rotating wheel 520, the eccentric column 530 is arranged at a non-central position of the rotating wheel 520, a sliding groove 541 penetrating in the front-rear direction is formed on the slider 540, the eccentric column 530 is slidably connected in the sliding groove 541, the upper surface of the slider 540 is fixedly connected to the lower end of the strip plate 310, two support plates 550 are arranged at intervals in the left-right direction at the lower part of the frame 100, vertical guide grooves are formed on the inner side surfaces of the two support plates 550, and the left and right ends of the slider 540 are slidably connected in the vertical guide grooves.

[0067] It should also be added that, in order to enable the slider 540 to drive the strip plate 310 to move vertically upward synchronously, specifically, a connecting frame 330 is arranged on the upper surface of the slider 540, and the upper end of the connecting frame 330 is fixedly connected to the strip plate 310 by bolts.

[0068] During operation, the motor 510 is started, the rotating wheel 520 is driven to rotate by the motor 510, the rotating wheel 520 drives the eccentric column 530 to rotate. Since the eccentric column 530 is arranged at a non-central position of the rotating wheel 520, the eccentric column 530 drives the slider 540 to reciprocate up and down along the vertical guide groove through the sliding groove 541. Since the slider 540 and the strip plate 310 are connected by the connecting frame 330, the slider 540 drives the strip plate 310 to reciprocate vertically synchronously.

[0069] In a further embodiment, as Figure 2 shown, the distance between two adjacent clamping plates 200 can be increased or decreased synchronously.

[0070] During use, first, the distance between two adjacent clamping plates 200 is increased synchronously, so that it is convenient for the staff to load the corrugated cardboard 700 into the gap between the two clamping plates 200. Then, the distance between two adjacent clamping plates 200 is decreased synchronously, so that the upper and lower surfaces of the clamping plates 200 are in contact with the upper and lower surfaces of the clamping plates 200.

[0071] In a further embodiment, asFigure 2 As shown, a plurality of clamping plates 200 are connected by a scissor hinge structure, and the distance between two adjacent clamping plates 200 can be synchronously increased or decreased through the scissor hinge structure. It should be added that the scissor hinge structure can use, for example, the hinge structure used in a household electric clothes hanger. The difference is that in the present invention, the upper hinge shafts of the two hinged rods that are hinged to each other and the lower hinge shafts of the two hinged rods that are hinged to each other in the scissor hinge structure should be inserted into the sides on the front and rear sides of the corresponding clamping plates 200.

[0072] When it is necessary to synchronously increase the distance between two adjacent clamping plates 200, the uppermost clamping plate 200 can be pulled vertically upward. Under the action of the scissor hinge structure, the distance between the plurality of clamping plates 200 is synchronously increased. On the contrary, when it is necessary to synchronously decrease the distance between two adjacent clamping plates 200, the uppermost clamping plate 200 can be pulled vertically downward. Under the action of the scissor hinge structure, the distance between the plurality of clamping plates 200 is synchronously decreased.

[0073] In a further embodiment, as Figure 1 and Figure 2 shown, the cutting device for corrugated cardboard further includes a second driving assembly 600. There are two groups of the second driving assemblies 600, and the two groups of the second driving assemblies 600 are respectively arranged at the front and rear ends of the clamping plate 200. The second driving assembly 600 is used to drive the uppermost clamping plate 200 to move in the vertical direction so that the distance between two adjacent clamping plates 200 can be synchronously increased or decreased.

[0074] When it is necessary to synchronously increase the distance between two adjacent clamping plates 200, the uppermost clamping plate 200 is pulled vertically upward through the second driving assembly 600. Under the action of the scissor hinge structure, the distance between the plurality of clamping plates 200 is synchronously increased. On the contrary, when it is necessary to synchronously decrease the distance between two adjacent clamping plates 200, the uppermost clamping plate 200 is pulled vertically downward through the second driving assembly 600. Under the action of the scissor hinge structure, the distance between the plurality of clamping plates 200 is synchronously decreased.

[0075] In a further embodiment, the second driving assembly 600 includes a first support rod 610, a second support rod 620, a connecting plate 630, and a hydraulic rod 640. The first support rod 610 and the second support rod 620 are arranged on the cutting platform 110 at intervals in the left - right direction, and both the first support rod 610 and the second support rod 620 penetrate through the clamping plate 200. The upper ends of the first support rod 610 and the second support rod 620 are connected by the connecting plate 630. The fixed end of the hydraulic rod 640 is arranged on the lower surface of the connecting plate 630, and the telescopic end of the hydraulic rod 640 is arranged on the upper surface of the uppermost clamping plate 200.

[0076] When it is necessary to synchronously increase the distance between two adjacent clamping plates 200, the uppermost clamping plate 200 is pulled vertically upward by the hydraulic rod 640. Under the action of the scissor hinge structure, the distance between multiple clamping plates 200 increases synchronously. On the contrary, when it is necessary to synchronously decrease the distance between two adjacent clamping plates 200, the uppermost clamping plate 200 is pulled vertically downward by the hydraulic rod 640. Under the action of the scissor hinge structure, the distance between multiple clamping plates 200 decreases synchronously.

[0077] It can be understood that the first support rod 610 and the second support rod 620 are provided to limit and support the clamping plate 200 to ensure that the clamping plate 200 is horizontal in the left-right direction.

[0078] In a further embodiment, a debris collection cavity 220 is formed on the right inner side surface of the tool feed groove 210, and a negative pressure suction pipe 230 is formed on the outer side surface of the debris collection cavity 220. The negative pressure suction pipe 230 is communicated with the debris collection cavity 220, and the negative pressure suction pipe 230 can be connected to a negative pressure suction device, such as a cyclone dust collector.

[0079] During operation, when the negative pressure suction device is turned on, the debris generated during the process of the saw teeth 320 cutting the corrugated cardboard 700 is sucked into the interior of the debris collection cavity 220, and finally collected into the interior of the negative pressure suction device through the negative pressure suction pipe 230.

[0080] In a further embodiment, as Figure 6 shown, inner grooves 321 are formed on both the upper end surface and the lower end surface of the tooth edge of the saw teeth 320. In this way, during the process of the saw teeth 320 cutting the corrugated cardboard 700, the cutting debris is concentrated in the inner grooves 321, preventing the debris from scattering everywhere.

[0081] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0082] The above-described embodiments only represent several implementation manners of the present invention. Their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A cutting device for corrugated cardboard, characterized in that: include: A frame, on which a cutting platform is arranged, and a working surface of the cutting platform is horizontal; There are multiple splints, and the upper surface of the splint is provided with a cutting groove, and the cutting groove runs through the lower surface of the splint; A plurality of clamping plates are arranged on the cutting platform at intervals in the vertical direction, and the spacing between two adjacent clamping plates is the same and is adapted to the thickness of the corrugated paperboard; A saw blade, the saw blade is connected to the frame and can reciprocate in the tool path in the vertical direction, the saw blade includes a strip plate and a plurality of saw teeth, the extension line of the strip plate in the length direction is perpendicular to the working surface of the cutting platform, the plurality of saw teeth are connected to the strip plate along the length direction of the strip plate, and the saw teeth are configured to be able to move between a left limit position and a right limit position along the width direction of the strip plate; A guide member, wherein the guide members are provided in plurality, and the plurality of guide members are connected to the plurality of clamping plates in a one-to-one correspondence, and the guide member is configured such that when the saw blade moves upward from bottom to top and the saw teeth approach the upper layer of paper of the corrugated cardboard, the guide member drives the saw teeth to move to the right limit position; The guide member is also configured to drive the saw teeth to move to the left limit position when the saw blade moves upward from bottom to top and the saw teeth approach the lower layer of paper of the corrugated cardboard; The guide member is also configured to drive the saw teeth to move to the right limit position when the saw blade moves downward from top to bottom and the saw teeth approach the lower layer of paper of the corrugated cardboard; The guide member is also configured to drive the saw teeth to move to the left limit position when the saw blade moves from top to bottom and the saw teeth approach the upper layer of paper of the corrugated cardboard; the guide member includes a first guide roller, a second guide roller and a guide block, and the front and rear sides of the tool groove are provided with a first guide groove and a second guide groove spaced from bottom to top in the vertical direction, both ends of the first guide roller are slidably fitted in the first guide groove, and both ends of the second guide roller are slidably fitted in the second guide groove, there are multiple guide blocks, and the multiple guide blocks are arranged on the tooth backs of the multiple saw teeth in a one-to-one correspondence, and the upper and lower edges of the guide blocks are provided with guide arcs, and the guide blocks can roll with the middle part of the first guide roller and the middle part of the second guide roller; The first guide groove and the second guide groove both include an arc groove section and a straight groove section, the arc groove section and the straight groove section are smoothly connected, the center line of the straight groove section is vertical, the two arc groove sections are respectively connected to one end of the two straight groove sections that are away from each other, and the arc groove section is located on the left side of the straight groove section; The bottom of the straight groove section is inlaid with a magnet, and a metal body is provided in the first guide roller and the second guide roller. When the first guide roller and the second guide roller are disengaged from the guide block, under the magnetic attraction of the magnet and the metal body, the first guide roller abuts against the bottom of the straight groove section of the first guide groove, and the second guide roller abuts against the bottom of the straight groove section of the second guide groove.

2. A cutting device for corrugated cardboard according to claim 1, characterized in that: The first guide roller includes a guide rod and a guide ring, and the guide ring is rotatably connected to the middle part of the guide rod through a bearing; The first guide roller and the second guide roller have the same structure.

3. A cutting device for corrugated cardboard according to claim 1, characterized in that: An elastic member is provided between the sawtooth and the strip plate, and the sawtooth is configured so that when the elastic member is not elastically deformed, the sawtooth is located at a left extreme position.

4. A cutting device for corrugated cardboard according to claim 1, characterized in that: It also includes a first driving assembly, which is used to drive the saw blade to reciprocate in the tool groove along the vertical direction.

5. A cutting device for corrugated cardboard according to claim 4, characterized in that: The first driving component includes a motor, a rotating wheel, an eccentric column and a slider. The motor is arranged at the lower part of the frame, the output end of the motor is fixedly connected to the rotating wheel, the eccentric column is arranged at a non-center position of the rotating wheel, the slider is provided with a sliding groove which runs through the slider along the front-to-back direction, the eccentric column is slidably connected in the sliding groove, the upper surface of the slider is fixedly connected to the lower end of the strip plate, two support plates are arranged at intervals along the left-right direction at the lower part of the frame, the inner sides of the two support plates are provided with vertical guide grooves, and the left and right ends of the slider are slidably connected in the vertical guide grooves.

6. A cutting device for corrugated cardboard according to claim 1, characterized in that: The distance between two adjacent clamping plates can be increased or decreased synchronously.

7. A cutting device for corrugated cardboard according to claim 6, characterized in that: The plurality of clamping plates are connected via a scissor-type hinge structure, and the distance between two adjacent clamping plates can be increased or decreased synchronously via the scissor-type hinge structure.

8. A cutting device for corrugated cardboard according to claim 1, characterized in that: It also includes a second drive assembly, which has two groups. The two groups of second drive assemblies are respectively arranged at the front and rear ends of the splint. The second drive assembly is used to drive the top splint to move in the vertical direction so that the distance between two adjacent splints can be increased or decreased synchronously.

9. A cutting device for corrugated cardboard according to claim 8, characterized in that: The second driving assembly includes a first support rod, a second support rod, a connecting plate and a hydraulic rod. The first support rod and the second support rod are arranged on the cutting platform at intervals along the left and right directions, and the first support rod and the second support rod both penetrate the clamping plate. The upper ends of the first support rod and the second support rod are connected by the connecting plate. The fixed end of the hydraulic rod is arranged on the lower surface of the connecting plate, and the telescopic end of the hydraulic rod is arranged on the upper surface of the uppermost clamping plate.

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