Cutting device for corrugated boards

Abstract

The invention relates to the technical field of cutting tools, in particular to a cutting device for corrugated boards, which comprises a rack, a plurality of clamping plates, a saw blade and a guide part, a cutting platform is arranged on the rack, the working surface of the cutting platform is horizontal, the upper surfaces of the clamping plates are provided with feed grooves, and the feed grooves penetrate to the lower surfaces of the clamping plates. According to the corrugated board cutting device, the saw blade and the guiding piece are arranged, under the guiding effect of the guiding piece, the saw blade can move between the left limiting position and the right limiting position in a reciprocating mode, when the saw blade approaches surface paper, capable of being supported by the clamping plate, of a corrugated board, the saw blade moves to the right limiting position, and at the moment, the saw blade cuts the surface paper of the corrugated board; when the saw blade is close to the surface paper of the corrugated board which cannot be supported by the clamping plate, the saw blade moves to the left limit position, the saw blade does not cut the surface paper of the corrugated board at the moment, and therefore it can be guaranteed that the surface paper at the cutting position is integrally smooth by means of the device.

Description

Technical Field

[0001] The invention relates to the technical field of cutting tools, in particular to a cutting device for corrugated paperboard. Background Art

[0002] Corrugated cardboard is mostly 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 layers of surface paper and a corrugated core paper connected between the two layers of surface paper. The surface paper is usually made of thinner but stronger paper, and the corrugated core paper is mostly a corrugated structure, providing cushioning and support.

[0003] During the processing of corrugated cardboard, it is necessary to cut it according to actual needs and cut it into appropriate sizes. Existing cutting devices that can be used for corrugated cardboard include band saws, rope saws, and reciprocating strip saws. Among them, reciprocating strip saws have the advantages of large cutting thickness, low cost, and simple operation, so they are widely used in cutting corrugated cardboard. When the strip saw cuts the corrugated cardboard, due to the vertical reciprocating movement of the saw blade, the two pieces of the corrugated cardboard at the cutting position are prone to collapse or curling outwards under the continuous pressure of the saw blade, which will cause the overall compression resistance of the corrugated cardboard to decrease. Especially during the stacking and transportation process, the curled edge part is prone to uneven force, which increases the risk of damage to items in the corrugated cardboard box. Summary of the invention

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

[0005] The above purpose is achieved through the following technical solutions: A cutting device for corrugated cardboard comprises: 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 downward and the saw teeth approach the upper layer of paper of the corrugated cardboard.

[0006] In one embodiment, the guide member includes a first guide roller, a second guide roller and a guide block. The front and rear sides of the tool groove are both provided with a first guide groove and a second guide groove in a vertical direction from bottom to top. 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. 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.

[0007] 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; The first guide roller and the second guide roller have the same structure.

[0008] In one of the embodiments, 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.

[0009] In one of the embodiments, the cutting device for corrugated cardboard further comprises a first driving assembly, and the first driving assembly is used to drive the saw blade to reciprocate in the vertical direction in the cutting groove.

[0010] In one of the embodiments, 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 penetrates along the front-to-back direction thereof, 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 side surfaces 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.

[0011] In one embodiment, the distance between two adjacent clamping plates can be increased or decreased synchronously.

[0012] In one embodiment, the plurality of clamps are connected by a scissor-type hinge structure, and the scissor-type hinge structure enables the distance between two adjacent clamps to be increased or decreased synchronously.

[0013] In one embodiment, the cutting device for corrugated cardboard also includes a second drive assembly, and the second drive assembly has two groups. The two groups of second drive assemblies are respectively arranged at the front and rear ends of the clamping plate, and the second drive assembly is used to drive the uppermost clamping plate to move in the vertical direction so that the distance between two adjacent clamping plates can be increased or decreased synchronously.

[0014] 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 on the cutting platform at intervals along the left-right direction, 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.

[0015] The beneficial effects of the present invention are: 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

[0016] Figure 1It is an overall schematic diagram of a cutting device for corrugated paperboard of the present invention; Figure 2 for Figure 1 A schematic diagram of the enlarged structure in the middle; Figure 3 It is a front view of a cutting device for corrugated cardboard of the present invention; Figure 4 This is a schematic structural diagram of a first driving assembly used in a corrugated paperboard according to the present invention; Figure 5 A half-section axonometric view of a saw blade in a cutting device for corrugated cardboard according to the present invention; Figure 6 for Figure 5 Schematic diagram of the enlarged structure at B in the middle; 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; 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; Fig. 9 for Figure 8 Schematic diagram of the enlarged structure at C in the middle; Fig.10 for Fig. 9 Schematic diagram of the enlarged structure at D in the middle; Fig.11 It is a structural schematic diagram of a first guide roller in a cutting device for corrugated paperboard of the present invention; Fig.12 The present invention is a schematic diagram of a cutting state of a cutting device for corrugated cardboard.

[0017] in: 100, frame; 110, cutting platform; 200, clamping plate; 210, cutting groove; 220, debris collection chamber; 230, negative pressure suction pipe; 300, saw blade; 310, strip plate; 320, saw teeth; 321, inner groove; 330, connecting frame; 400, guide member; 410, first guide roller; 411, guide rod; 412, guide ring; 420, second guide roller; 430, guide block; 431, guide arc; 440, first guide groove; 441, arc groove section; 442, straight groove section; 450, second guide groove; 500, first driving assembly; 510, motor; 520, rotating wheel; 530, eccentric column; 540, slider; 541, sliding slot; 550, supporting plate; 600, second driving assembly; 610, first supporting rod; 620, second supporting rod; 630, connecting plate; 640, hydraulic rod; 700. Corrugated cardboard. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is 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.

[0019] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the accompanying drawings, which is 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 cannot be understood as a limitation to the present invention.

[0020] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean 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, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0021] like Figure 1-Figure 12As shown, a cutting device for corrugated cardboard includes a frame 100, a clamping plate 200, a saw blade 300 and a guide member 400. A cutting platform 110 is provided on the frame 100. The working surface of the cutting platform 110 is horizontal. There are multiple clamping plates 200. The upper surface of the clamping plate 200 is provided with a knife groove 210. The knife groove 210 penetrates to the lower surface of the clamping plate 200. Multiple clamping plates 200 are arranged on the cutting platform 110 at intervals in the vertical direction. The distance between two adjacent clamping plates 200 is 1 / 4 of the cutting platform 110. The spacing between the two is the same and is adapted to the thickness of the corrugated cardboard. The saw blade 300 is connected to the frame 100 and can reciprocate in the tool path 210 in the vertical direction. The saw blade 300 includes a strip plate 310 and a plurality of saw teeth 320. The extension line of the strip plate 310 in the length direction is perpendicular to the working surface of the cutting platform 110. The plurality of saw teeth 320 are connected to the strip plate 310 along the length direction of the strip plate 310, and the saw teeth 320 are configured so that they can reciprocate along the strip plate 310. The width direction of the plate 310 moves between the left limit position and the right limit position. There are multiple guide members 400, and the multiple guide members 400 are connected to the multiple clamping plates 200 in a one-to-one correspondence. The guide members 400 are configured to drive the saw teeth 320 to move to the right limit position when the saw blade 300 moves from bottom to top and the saw teeth 320 approach the upper layer of the corrugated paperboard. The guide members 400 are also configured to drive the saw teeth 320 to move to the right limit position when the saw blade 300 moves from bottom to top and the saw teeth 320 approach the upper layer of the corrugated paperboard. The guide member 400 is further configured to drive the saw teeth 320 to move to the right limit position when the saw blade 300 moves from top to bottom and the saw teeth 320 approach the lower layer of paper of the corrugated board. The guide member 400 is further configured to drive the saw teeth 320 to move to the left limit position when the saw blade 300 moves from top to bottom and the saw teeth 320 approach the upper layer of paper of the corrugated board.

[0022] When in use, the staff makes the spacing between two adjacent clamps 200 the same and matches the thickness of the corrugated cardboard 700, then loads multiple corrugated cardboards 700 one by one into the gap between the clamps 200, and aligns the corrugated cardboards 700. At this time, the upper and lower surface papers of the corrugated cardboards 700 are in contact with the upper and lower surfaces of the clamps 200. Next, the saw blade 300 is reciprocated in the vertical direction in the cutting groove 210, and then the staff pushes the corrugated cardboard 700 to move horizontally to the left. When the saw blade 300 moves from bottom to top and the saw teeth 320 approach the upper surface paper of the corrugated cardboard 700, the guide member 400 drives the saw teeth 320 to move to the right limit position. At this time, the tooth edge of the saw teeth 320 is located on the upper surface paper of the corrugated cardboard 700. , as the saw blade 300 continues to move vertically upward, the tooth edge of the saw tooth 320 contacts the upper layer of paper of the corrugated board 700 and cuts the upper layer of paper of the corrugated board 700. It can be understood that, although the upper layer of paper of the corrugated board 700 is subjected to a greater upward force from the saw tooth 320 at this time, because the upper layer of paper of the corrugated board 700 is supported by the plywood 200 in contact with it, the upper layer of paper of the corrugated board 700 will not curl upward. When the saw blade 300 moves from bottom to top and the saw tooth 320 approaches the lower layer of paper of another corrugated board 700, the guide member 400 drives the saw tooth 320 to move to the left limit position. At this time, the tooth edge of the saw tooth 320 is not directly below the lower layer of paper of the corrugated board 700. , so the tooth edge of the saw tooth 320 only cuts the corrugated core paperboard between the two surface papers. When the saw tooth 320 contacts the lower surface paper of the corrugated paperboard 700, the lower surface paper of the corrugated paperboard 700 is subjected to very small upward force from the saw tooth 320. Therefore, the lower surface paper of the corrugated paperboard 700 will not be cut by the tooth edge of the saw tooth 320, so the lower surface paper of the corrugated paperboard 700 will not curl. Similarly, when the saw blade 300 moves from top to bottom and the saw tooth 320 approaches the lower surface paper of the corrugated paperboard 700, the guide member 400 drives the saw tooth 320 to move to the right limit position. At this time, the tooth edge of the saw tooth 320 is located directly above the lower surface paper of the corrugated paperboard 700. As the saw blade 300 continues to move vertically downward, the saw tooth 320 The tooth edge contacts with the lower layer of paper of the corrugated board 700 and cuts the lower layer of paper of the corrugated board 700. It can be understood that, although the lower layer of paper of the corrugated board 700 is subjected to a large downward force from the saw tooth 320 at this time, because the lower layer of paper of the corrugated board 700 is also supported by the clamping plate 200 in contact with it, the lower layer of paper of the corrugated board 700 will not curl downward. When the saw blade 300 moves from top to bottom and the saw tooth 320 approaches the upper layer of paper of another corrugated board 700, the guide member 400 drives the saw tooth 320 to move to the left limit position. At this time, the tooth edge of the saw tooth 320 is not located directly above the upper layer of paper of the corrugated board 700, so the saw tooth 320 only cuts the corrugated core paper located between the two surface papers.When the sawtooth 320 tooth edge contacts the upper layer of paper of the corrugated cardboard 700, the upper layer of paper of the corrugated cardboard 700 is subjected to very small upward force from the sawtooth 320, so the upper layer of paper of the corrugated cardboard 700 will not be cut, and the upper layer of paper of the corrugated cardboard 700 will not curl. In summary, as the saw blade 300 reciprocates in the vertical direction in the knife groove 210 and the corrugated cardboard 700 moves horizontally to the left, the corrugated cardboard 700 is gradually cut by the saw blade 300, and the surface paper at the cutting position is overall flat, and it is not easy to collapse or curl outward, thereby ensuring that the overall compression resistance of the corrugated cardboard will not decrease. During the stacking and transportation process, the corrugated cardboard 700 is subjected to uneven force at various locations, thereby reducing the risk of damage to items in the corrugated cardboard box.

[0023] It can be understood that when the saw tooth 320 is located at the left extreme position, the saw tooth 320 only contacts the cut side of the corrugated cardboard 700, so the surface paper of the corrugated cardboard 700 is subjected to very small force from the saw tooth 320, and when the saw tooth 320 is located at the right extreme position, the saw tooth 320 contacts the non-cut position of the surface paper of the corrugated cardboard 700, so the surface paper of the corrugated cardboard 700 is subjected to a large force from the saw tooth 320, thereby cutting the surface paper of the corrugated cardboard 700.

[0024] In a further embodiment, Figure 6 , Figure 7 , Fig.10 and Fig.12As shown, the guide member 400 includes a first guide roller 410, a second guide roller 420 and a guide block 430. The front and rear sides of the tool groove 210 are both vertically spaced from bottom to top with a first guide groove 440 and a second guide groove 450. Both ends of the first guide roller 410 are slidably fitted in the first guide groove 440, and both ends of the second guide roller 420 are slidably fitted in the second guide groove 450. There are multiple guide blocks 430, and the multiple guide blocks 430 are arranged on the tooth backs of the multiple saw teeth 320 in a one-to-one correspondence. The upper and lower edges of the guide blocks 430 are both provided with guide arcs 431. The guide blocks 430 can roll with the middle part of the first guide roller 410 and the middle part of the second guide roller 420. The first guide groove 440 and the second The guide grooves 450 each 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 that are away from each other, and the arc groove section 441 is located on the left side of the straight groove section 442, the groove bottom of the straight groove section 442 is inlaid with a magnet, the first guide roller 410 and the second guide roller 420 are both provided with a metal body, when the first guide roller 410, the second guide roller 420 are out of engagement with the guide block 430, under the magnetic attraction of the magnet and the metal body, the first guide roller 410 abuts against the groove bottom of the straight groove section 442 of the first guide groove 440, and the second guide roller 420 abuts against the groove bottom of the straight groove section 442 of the second guide groove 450.

[0025] When the saw blade 300 moves upward from bottom to top and the saw tooth 320 approaches the lower layer of paper of the corrugated board 700, since the second guide roller 420 is located at the bottom of the straight groove section 442 of the second guide groove 450 at this time, the second guide roller 420 is pushed into the arc groove section 441 by the saw tooth 320. Therefore, the tooth edge of the saw tooth 320 is not located directly below the lower layer of paper of the corrugated board 700, and therefore the tooth edge of the saw tooth 320 will not cut the lower layer of paper of the corrugated board 700.

[0026] As the saw blade 300 continues to move upward, the saw tooth 320 approaches the upper layer of the corrugated board 700. At this time, the guide block 430 pushes the first guide roller 410 to continue to move upward along the straight groove section 442. However, the first guide roller 410 has already abutted against the upper groove bottom of the straight groove section 442. Therefore, the first guide roller 410 in turn pushes the guide block 430 and the saw tooth 320 to move rightward to the right limit position. At this time, the tooth edge of the saw tooth 320 is located directly below the lower layer of the corrugated board 700. As the saw blade 300 continues to move upward, the upper layer of the corrugated board 700 is cut.

[0027] When the saw blade 300 moves from top to bottom and the saw tooth 320 approaches the upper layer of paper of the corrugated board 700, since the second guide roller 420 is located at the bottom of the straight groove section 442 of the second guide groove 450 at this time, the second guide roller 420 is pushed into the arc groove section 441 of the second guide groove 450 by the guide block 430. Therefore, the tooth edge of the saw tooth 320 is not located directly above the upper layer of paper of the corrugated board 700, and therefore the tooth edge of the saw tooth 320 will not cut the upper layer of paper of the corrugated board 700.

[0028] As the saw blade 300 continues to move downward, the saw tooth 320 approaches the lower layer of paper of the corrugated board 700. At this time, the guide block 430 pushes the second guide roller 420 to continue to move upward along the straight groove section 442. However, the second guide roller 420 has already abutted against the upper groove bottom of the straight groove section 442. Therefore, the second guide roller 420 in turn pushes the guide block 430 and the saw tooth 320 to move rightward to the right limit position. At this time, the tooth edge of the saw tooth 320 is located directly above the lower layer of paper of the corrugated board 700. As the saw blade 300 continues to move downward, the lower layer of paper of the corrugated board 700 is cut.

[0029] It should also be noted that the magnets and metal bodies are provided to enable the first guide roller 410 and the second guide roller 420 to automatically return to a position abutting against the bottom of the straight groove end of the corresponding first guide groove 440 or the second guide groove 450 when they are not in contact with the saw teeth 320.

[0030] In a further embodiment, Fig.11 As shown, the first guide roller 410 includes a guide rod 411 and a guide ring 412. The guide ring 412 is rotatably connected to the middle portion of the guide rod 411 via a bearing. The first guide roller 410 and the second guide roller 420 have the same structure.

[0031] The guide ring 412 is rotatably connected to the guide rod 411 to prevent the guide ring 412 from being severely worn locally. It should be added that, similarly, to prevent the two ends of the guide rod 411 from being excessively worn, the two ends of the guide rod 411 also need to be plated with wear-resistant materials.

[0032] In a further embodiment, an elastic member is provided between the sawtooth 320 and the strip plate 310 , and the sawtooth 320 is configured such that when the elastic member is not elastically deformed, the sawtooth 320 is located at the left extreme position.

[0033] The elastic member is provided to reset the sawtooth 320 when the connecting frame 330 is not in contact with the first guide roller 410 or the second guide roller 420, so that the sawtooth 320 is located at the left limit position.

[0034] It should also be noted that the elastic member can specifically be a compression spring or a spring sheet. When the elastic member is a compression spring, the axis of the compression spring is horizontal, and one end of the compression spring is arranged on the side of the saw tooth 320, and the other end of the compression spring is arranged on the side of the strip plate 310.

[0035] In a further embodiment, Figure 3 and Figure 4 As shown, a cutting device for corrugated cardboard also includes a first driving assembly 500, which is used to drive the saw blade 300 to reciprocate in the vertical direction in the cutting 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, and the output end of the motor 510 is fixedly connected to the rotating wheel 520. The eccentric column 530 is arranged at a non-center position of the rotating wheel 520. The slider 540 is provided with a sliding groove 541 that passes through the slider along the front and rear direction. 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 along the left and right directions at the lower part of the frame 100. The inner sides of the two support plates 550 are provided with vertical guide grooves, and the left and right ends of the slider 540 are slidably connected in the vertical guide grooves.

[0036] It should also be noted 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 provided 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.

[0037] During operation, the motor 510 is started, and the rotating wheel 520 is driven to rotate by the motor 510, and the rotating wheel 520 drives the eccentric column 530 to rotate. Since the eccentric column 530 is set at a non-center position of the rotating wheel 520, the eccentric column 530 drives the slider 540 to move back and forth 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 move back and forth in the vertical direction synchronously.

[0038] In a further embodiment, Figure 2 As shown, the distance between two adjacent clamping plates 200 can be increased or decreased synchronously.

[0039] When in use, the distance between two adjacent clamps 200 is first increased synchronously, so that it is convenient for the staff to load the corrugated cardboard 700 into the gap between the two clamps 200, and then the distance between the two adjacent clamps 200 is reduced synchronously so that the upper and lower surfaces of the clamps 200 are in contact with the upper and lower surfaces of the clamps 200.

[0040] In a further embodiment, Figure 2 As shown, a plurality of clamping plates 200 are connected by a scissor-type hinge structure, and the distance between two adjacent clamping plates 200 can be increased or decreased synchronously by the scissor-type hinge structure. It should be supplemented that the scissor-type hinge structure can use a hinge structure such as that used in a household electric clothes drying rack, the difference being that in the present invention, the upper hinge shafts of the two hinged rods hinged to each other and the lower hinge shafts of the two hinged rods hinged to each other in the scissor-type hinge structure should be inserted into the side surfaces of the front and rear sides of each corresponding clamping plate 200.

[0041] When the distance between two adjacent clamping plates 200 needs to be increased synchronously, the clamping plate 200 on the uppermost layer can be pulled vertically upward, and under the action of the scissor-type hinge structure, the distance between the multiple clamping plates 200 increases synchronously. Conversely, when the distance between two adjacent clamping plates 200 needs to be decreased synchronously, the clamping plate 200 on the uppermost layer can be pulled vertically downward, and under the action of the scissor-type hinge structure, the distance between the multiple clamping plates 200 decreases synchronously.

[0042] In a further embodiment, Figure 1 and Figure 2 As shown, the cutting device for corrugated cardboard also includes a second drive assembly 600. There are two groups of second drive assemblies 600, and the two groups of second drive assemblies 600 are respectively arranged at the front and rear ends of the clamping plate 200. The second drive 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.

[0043] When the distance between two adjacent clamping plates 200 needs to be increased synchronously, the second driving assembly 600 pulls the clamping plate 200 on the uppermost layer to move vertically upward, and under the action of the scissor-type hinge structure, the distance between the multiple clamping plates 200 increases synchronously. Conversely, when the distance between two adjacent clamping plates 200 needs to be decreased synchronously, the second driving assembly 600 pulls the clamping plate 200 on the uppermost layer to move vertically downward, and under the action of the scissor-type hinge structure, the distance between the multiple clamping plates 200 decreases synchronously.

[0044] In a further embodiment, the second drive 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 along the left and right directions, and the first support rod 610 and the second support rod 620 both pass 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 topmost clamping plate 200.

[0045] When the spacing between two adjacent clamping plates 200 needs to be increased synchronously, the uppermost clamping plate 200 is pulled vertically upward by the hydraulic rod 640, and the spacing between the multiple clamping plates 200 increases synchronously under the action of the scissor-type hinge structure. Conversely, when the spacing between two adjacent clamping plates 200 needs to be decreased synchronously, the uppermost clamping plate 200 is pulled vertically downward by the hydraulic rod 640, and the spacing between the multiple clamping plates 200 decreases synchronously under the action of the scissor-type hinge structure.

[0046] It is understandable that the first support rod 610 and the second support rod 620 are provided to provide position-limiting support for the clamping plate 200 to ensure that the clamping plate 200 is horizontal along the left-right direction.

[0047] In a further embodiment, a debris collection chamber 220 is opened on the right inner side surface of the tool groove 210, and a negative pressure suction pipe 230 is opened on the outer side surface of the debris collection chamber 220. The negative pressure suction pipe 230 is connected to the debris collection chamber 220, and the negative pressure suction pipe 230 can be connected to a negative pressure suction device, such as a cyclone vacuum cleaner.

[0048] When working, the negative pressure suction device is turned on, and the debris generated during the saw teeth 320 cutting the corrugated cardboard 700 is sucked into the debris collection chamber 220, and finally collected into the negative pressure suction device through the negative pressure suction pipe 230.

[0049] In a further embodiment, Figure 6 As shown, the upper and lower end surfaces of the tooth blade of the saw tooth 320 are both provided with inner grooves 321, so that when the saw tooth 320 cuts the corrugated cardboard 700, the cutting debris can be concentrated in the inner grooves 321 to prevent the debris from scattering.

[0050] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, 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, they should be considered to be within the scope of this specification.

[0051] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached 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 downward and the saw teeth approach the upper layer of paper of the corrugated cardboard.

2. A cutting device for corrugated cardboard according to claim 1, characterized in that: The guide member comprises a first guide roller, a second guide roller and a guide block. The front and rear sides of the tool groove are both provided with a first guide groove and a second guide groove in a vertical direction from bottom to top. 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. 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.

3. A cutting device for corrugated cardboard according to claim 2, 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.

4. A cutting device for corrugated cardboard according to claim 2, 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.

5. 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.

6. A cutting device for corrugated cardboard according to claim 5, 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.

7. 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.

8. A cutting device for corrugated cardboard according to claim 7, 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.

9. 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.

10. A cutting device for corrugated cardboard according to claim 9, 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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