Cardboard cutting equipment capable of automatically replacing cardboard

Abstract

The present invention provides a cardboard cutting device capable of automatically replacing cardboard, belonging to the field of cardboard cutting technology. The device comprises a support frame, a conveying assembly, a cutting assembly, a drive assembly, a plate unloading assembly, and a push plate assembly. The conveying assembly is mounted at one end of the upper portion of the support frame, and the push plate assembly is mounted at the other end of the upper portion of the support frame. The drive assembly is mounted on the inner side of the support frame and is used to drive the push plate assembly to intermittently move toward the conveying assembly to intermittently advance a plurality of vertically placed cardboards. The plate unloading assembly is disposed between the push plate assembly and the conveying assembly and is used to sequentially unload the plurality of cardboards intermittently advanced by the push plate assembly onto the conveying assembly for straight conveyance by the conveying assembly. Compared to the prior art, the embodiments of the present invention can achieve continuous and automatic feeding of a plurality of cardboards when cutting cardboard, thereby improving cardboard cutting efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of cardboard cutting, in particular to a cardboard cutting device capable of automatically replacing cardboard. Background Art

[0002] At present, in order to meet the size requirements of cardboard in various industries, the produced cardboard often needs to be cut twice to cut the large piece of cardboard into the required cardboard size.

[0003] In the prior art, cardboard cutting is mostly carried out by utilizing the relative movement between a cutting mechanism and the cardboard, and the cutting mechanism is used to cut a larger cardboard into smaller cardboards that meet the size requirements. When the cutting mechanism has finished cutting a larger cardboard, it is often necessary to manually replenish another larger cardboard to facilitate batch cutting of cardboards. However, manual replenishment of cardboards is time-consuming and labor-intensive on the one hand, and it is also easy for the cutting mechanism to work meaninglessly for a long time due to untimely replenishment of the cardboard. When the cutting mechanism works meaninglessly for a long time, it not only affects the efficiency of cardboard cutting, but also leads to waste of energy. Summary of the Invention

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a cardboard cutting device that can automatically replace cardboard.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A cardboard cutting device capable of automatically replacing cardboard includes a support frame, a conveying assembly, a cutting assembly, a driving assembly, a cardboard unloading assembly, and a pusher assembly.

[0007] The conveying assembly is mounted on one end of the upper portion of the support frame, and the push plate assembly is mounted on the other end of the upper portion of the support frame.

[0008] The driving assembly is installed inside the supporting frame and is used to drive the push plate assembly to move intermittently toward the conveying assembly to intermittently push a number of vertically placed cardboards.

[0009] The unloading plate assembly is arranged between the pushing plate assembly and the conveying assembly, and is used to sequentially unload a number of cardboards intermittently pushed by the pushing plate assembly onto the conveying assembly for straight conveying by the conveying assembly.

[0010] The cutting assembly is arranged above the conveying assembly and is used for cutting the cardboard conveyed by the conveying assembly.

[0011] As a further improvement of the present invention: a first notch is provided on the upper portion of the support frame.

[0012] The driving assembly includes a motor, an incomplete bevel gear, a first complete bevel gear, a lead screw and a slide rod.

[0013] The motor is fixedly mounted on the inner bottom wall of the support frame, the incomplete bevel gear is mounted on the output end of the motor, the screw rod is rotatably mounted on the inner top wall of the support frame, the first complete bevel gear is fixedly mounted on one end of the screw rod and can mesh with the incomplete bevel gear, one end of the sliding rod is sleeved on the outside of the screw rod and engaged with the screw rod thread, and the other end extends from the first notch to the top of the support frame.

[0014] The push plate assembly includes a push rod and a push plate.

[0015] One end of the push rod is fixedly connected to one end of the slide rod located above the support frame, and the other end is fixedly connected to the push plate.

[0016] As a further improvement of the present invention: a first support seat is rotatably provided at one end of the screw rod away from the first full bevel gear, and the first support seat is fixedly mounted on the inner top wall of the support frame.

[0017] As a further improvement of the present invention: a limit plate is fixedly provided on the upper portion of the support frame.

[0018] The unloading plate assembly includes a vertical pushing assembly and a horizontal pushing assembly. When a group of the cardboards farthest from the pushing plate is pushed to one side of the limiting plate, the vertical pushing assembly is used to vertically push the group of cardboards upward. When the group of cardboards is misaligned with the other cardboards, the horizontal pushing assembly is used to horizontally push the group of cardboards so that the group of cardboards is dumped to the upper part of the conveying assembly.

[0019] As a further improvement of the present invention: the upper portion of the support frame is provided with a second notch on one side of the limiting plate.

[0020] The vertical push assembly includes a push cam, a second support seat, a second full bevel gear and a second rotating shaft.

[0021] The second support seat is fixedly mounted on the inner top wall of the support frame, the second rotating shaft passes through the second support seat and rotates with the second support seat, the pushing cam is fixedly set at one end of the second rotating shaft, and the pushing cam is located directly below the second notch, the second complete bevel gear is fixedly set at the other end of the second rotating shaft and is distributed opposite to the first complete bevel gear, and the second complete bevel gear can engage with the incomplete bevel gear.

[0022] As a further improvement of the present invention: an eccentric wheel is fixedly provided on the outside of the second rotating shaft.

[0023] The transverse thrust assembly includes a first piston rod, an elastic member, an air storage elbow, a third support seat and a second piston rod.

[0024] One end of the gas storage bend extends above the plurality of cardboards, and the other end extends to the inside of the support frame. The third support seat is fixedly mounted on the inner top wall of the support frame and is used to fix the gas storage bend. One end of the first piston rod contacts the circumferential side wall of the eccentric wheel, and the other end extends from one end of the gas storage bend located on the inner side of the support frame to the interior of the gas storage bend and is telescopically matched with the gas storage bend.

[0025] A ring seat is fixedly provided on the outside of the first piston rod, one end of the elastic member is connected to the ring seat, and the other end is connected to the gas storage elbow, for providing elastic support for the first piston rod.

[0026] One end of the second piston rod extends from one end of the gas storage elbow located above the plurality of paperboards to the inside of the gas storage elbow and is telescopically matched with the gas storage elbow, and the other end extends to the outside of the gas storage elbow.

[0027] As a further improvement of the present invention: the elastic member is a spring or a metal spring.

[0028] As a further improvement of the present invention: the conveying assembly includes conveying rollers and a plurality of conveying belts,

[0029] There are two groups of conveying rollers, which are rotatably mounted on the upper part of the support frame. One group of conveying rollers is controlled to rotate by an external motor. There are several groups of conveying belts, which are sleeved between the two groups of conveying rollers. The conveying belts are spaced apart along the length direction of the conveying rollers.

[0030] As a further improvement of the present invention: the cutting assembly includes a first rotating shaft and a cutting disc,

[0031] The first rotating shaft is arranged above the plurality of conveyor belts and is controlled to rotate by an external motor. The cutting discs are provided in a plurality of groups corresponding to the conveyor belts. The cutting discs are fixedly arranged outside the first rotating shaft, and the lower parts of the cutting discs extend between the plurality of conveyor belts.

[0032] As a further improvement of the present invention: two groups of side baffles are fixedly provided on the upper part of the support frame, and the two groups of side baffles are relatively distributed.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] In the embodiment of the present invention, when it is necessary to cut a number of cardboards, the cardboards to be cut can be placed on one side of the push plate assembly, so that the cardboards are placed vertically in sequence, and then the push plate assembly is driven by the driving assembly to intermittently move toward the conveying assembly. When the push plate assembly moves intermittently, it pushes the cardboards so that the cardboards intermittently move toward the conveying assembly. In this process, the unloading assembly is used to unload the cardboards onto the conveying assembly in sequence, and the conveying assembly conveys the cardboards in a straight manner. Then, the cutting assembly is used to cut the cardboards conveyed by the conveying assembly in sequence. Compared with the existing technology, when cutting the cardboards, there is no need for excessive manual intervention, and the continuous automatic board feeding operation of the cardboards can be realized, thereby improving the cardboard cutting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A schematic diagram of the structure of a cardboard cutting device that can automatically replace cardboard Figure 1 ;

[0036] Figure 2 A schematic diagram of the structure of a cardboard cutting device that can automatically replace cardboard Figure 2 ;

[0037] Figure 3 A schematic diagram of the structure of a cardboard cutting device that can automatically replace cardboard Figure 3 ;

[0038] Figure 4 A schematic diagram of the structure of a cardboard cutting device that can automatically replace cardboard Figure 4 ;

[0039] Figure 5 for Figure 1 A magnified schematic diagram of area A in the middle;

[0040] Figure 6 for Figure 3 A magnified schematic diagram of area B in the middle;

[0041] Figure 7 for Figure 4 Enlarged schematic diagram of area C in the middle;

[0042] In the figure: 10-support frame, 101-limiting plate, 102-side baffle, 103-first notch, 104-second notch, 20-conveying assembly, 201-conveying roller, 202-conveying belt, 30-cutting assembly, 301-first rotating shaft, 302-cutting disk, 40-driving assembly, 401-motor, 402-incomplete bevel gear, 403-first complete bevel gear, 404-screw, 405-sliding rod, 406-first support seat, 50 -Unloading plate assembly, 501-vertical push assembly, 5011-pushing cam, 5012-second support seat, 5013-second complete bevel gear, 5014-eccentric wheel, 5015-second rotating shaft, 502-transverse push assembly, 5021-first piston rod, 5022-ring seat, 5023-elastic part, 5024-gas storage elbow, 5025-third support seat, 5026-second piston rod, 60-push plate assembly, 601-push rod, 602-push plate. DETAILED DESCRIPTION

[0043] The technical solution of the present invention will be further described in detail below in conjunction with specific implementation methods.

[0044] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0045] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship 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 cannot be understood as limiting the present invention.

[0046] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "disposed" should be understood in a broad sense. For example, they may refer to fixed connection or disposition, detachable connection or disposition, or integral connection or disposition. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0047] See also Figure 1 、 Figure 2 、 Figure 3 as well as Figure 4The present embodiment provides a cardboard cutting device capable of automatically replacing cardboard, comprising a support frame 10, a conveying assembly 20, a cutting assembly 30, a driving assembly 40, a plate unloading assembly 50, and a push plate assembly 60. The conveying assembly 20 is mounted on one end of the upper portion of the support frame 10, and the push plate assembly 60 is mounted on the other end of the upper portion of the support frame 10. The driving assembly 40 is mounted on the inner side of the support frame 10 and is used to drive the push plate assembly 60 to intermittently move toward the conveying assembly 20 to intermittently advance a plurality of vertically placed cardboards. The plate unloading assembly 50 is disposed between the push plate assembly 60 and the conveying assembly 20 and is used to sequentially unload a plurality of cardboards intermittently advanced by the push plate assembly 60 onto the conveying assembly 20 for straight conveying by the conveying assembly 20. The cutting assembly 30 is disposed above the conveying assembly 20 and is used to cut the cardboards conveyed by the conveying assembly 20.

[0048] When it is necessary to cut a number of cardboards, the cardboards to be cut can be placed on one side of the push plate assembly 60 so that the cardboards are placed vertically in sequence. Then, the push plate assembly 60 is driven by the driving assembly 40 to move intermittently toward the conveying assembly 20. When the push plate assembly 60 moves intermittently, it pushes the cardboards so that the cardboards intermittently move toward the conveying assembly 20. During this process, the unloading assembly 50 is used to unload the cardboards onto the conveying assembly 20 in sequence, and the conveying assembly 20 conveys the cardboards in a straight manner. Then, the cutting assembly 30 is used to cut the cardboards conveyed by the conveying assembly 20 in sequence.

[0049] See also Figure 1 as well as Figure 3 In one embodiment, a first notch 103 is provided on the upper portion of the support frame 10, and the drive assembly 40 includes a motor 401, an incomplete bevel gear 402, a first complete bevel gear 403, a screw 404, and a slide bar 405. The motor 401 is fixedly mounted on the inner bottom wall of the support frame 10, the incomplete bevel gear 402 is mounted on the output end of the motor 401, the screw 404 is rotatably mounted on the inner top wall of the support frame 10, and the first complete bevel gear 403 is fixedly mounted on the inner bottom wall of the support frame 10. It is fixedly arranged at one end of the screw rod 404 and can engage with the incomplete bevel gear 402. One end of the sliding rod 405 is sleeved on the outside of the screw rod 404 and is threadedly engaged with the screw rod 404. The other end extends from the first notch 103 to above the support frame 10. The push plate assembly 60 includes a push rod 601 and a push plate 602. One end of the push rod 601 is fixedly connected to one end of the sliding rod 405 located above the support frame 10, and the other end is fixedly connected to the push plate 602.

[0050] When it is necessary to cut several cardboards, the cardboards to be cut can be placed on one side of the push plate 602 and placed vertically in sequence, and then the motor 401 is started. The motor 401 drives the incomplete bevel gear 402 to rotate. When the incomplete bevel gear 402 is engaged with the first complete bevel gear 403, it can drive the screw rod 404 to rotate. When the screw rod 404 rotates, it drives the slide rod 405 to slide along the inside of the first notch 103 through the thread cooperation with the slide rod 405, and then drives the push plate 602 to move toward the conveying assembly 20 through the push rod 601. When the push plate 602 moves, it acts on the several cardboards, and then the push plate and the several cardboards move toward the conveying assembly 20 to achieve the advancement of the several cardboards. After the several cardboards move one cardboard position, the incomplete bevel gear 402 is disengaged from the first complete bevel gear 403, and the screw rod 404 remains stationary. At this time, the unloading The plate assembly 50 unloads a group of cardboards farthest from the push plate 602 onto the conveying assembly 20, and the conveying assembly 20 conveys the cardboards straightly, and then uses the cutting assembly 30 to cut the straightly conveyed cardboards. After the current cardboard is cut, the incomplete bevel gear 402 engages with the first complete bevel gear 403 again, and then drives the screw rod 404 to rotate again. The screw rod 404 drives the push rod 601 and the push plate 602 toward the conveying assembly 20 through the slide rod 405 again, and then pushes the remaining cardboards to one cardboard position again. Then the unloading plate assembly 50 unloads the group of cardboards farthest from the push plate 602 onto the conveying assembly 20 again, and the conveying assembly 20 conveys the cardboards straightly again, and the cutting assembly 30 cuts the cardboards again. Such a reciprocating cycle can realize the automatic feeding of multiple cardboards and the continuous cutting of multiple cardboards.

[0051] See also Figure 3 In one embodiment, a first support seat 406 is rotatably provided at one end of the screw rod 404 away from the first full bevel gear 403 , and the first support seat 406 is fixedly mounted on the inner top wall of the support frame 10 .

[0052] By setting the first support seat 406, the screw rod 404 can be provided with rotation support, so that when the incomplete bevel gear 402 is engaged with the first complete bevel gear 403, the screw rod 404 can be driven to rotate smoothly, and then the sliding rod 405, the push rod 601 and the push plate 602 can be driven to move smoothly, thereby achieving the smooth advancement of several cardboards.

[0053] See also Figure 1 、 Figure 6 as well as Figure 7In one embodiment, a limit plate 101 is fixedly provided on the upper part of the support frame 10, and the unloading assembly 50 includes a vertical pushing assembly 501 and a horizontal pushing assembly 502. When a group of the cardboards farthest from the pushing plate 602 is pushed to the side of the limit plate 101, the vertical pushing assembly 501 is used to vertically push the group of cardboards upward. When the group of cardboards is misaligned with the other cardboards, the horizontal pushing assembly 502 is used to horizontally push the group of cardboards so that the group of cardboards is dumped to the upper part of the conveying assembly 20.

[0054] After the screw rod 404 cooperates with the slide rod 405 to enable the push plate 602 to push several cardboards to a cardboard body position, the group of cardboards farthest from the push plate 602 acts on one side of the limit plate 101. At this time, the vertical pushing component 501 vertically pushes up the group of cardboards farthest from the push plate 602, and the cardboard moves up compared to the other cardboards. When the cardboard is misaligned with the other cardboards, the horizontal pushing component 502 pushes the cardboard horizontally, causing the cardboard to fall onto the upper part of the conveying component 20 and then be conveyed by the conveying component 20.

[0055] See also Figure 6 as well as Figure 7 In one embodiment, a second slot 104 is further provided on the upper part of the support frame 10 on one side of the limit plate 101, and the vertical pushing assembly 501 includes a pushing cam 5011, a second support seat 5012, a second complete bevel gear 5013 and a second rotating shaft 5015. The second support seat 5012 is fixedly mounted on the inner top wall of the support frame 10, and the second rotating shaft 5015 passes through the second support seat 5012 and rotates with the second support seat 5012. The pushing cam 5011 is fixedly arranged at one end of the second rotating shaft 5015, and the pushing cam 5011 is located directly below the second slot 104. The second complete bevel gear 5013 is fixedly arranged at the other end of the second rotating shaft 5015 and is distributed opposite to the first complete bevel gear 403. The second complete bevel gear 5013 can mesh with the incomplete bevel gear 402.

[0056] After the incomplete bevel gear 402 is disengaged from the first complete bevel gear 403, the push plate 602 pushes several cardboards into one cardboard position. At this time, the group of cardboards farthest from the push plate 602 acts on the side of the limit plate 101 and is located directly above the second notch 104. As the incomplete bevel gear 402 continues to rotate, the incomplete bevel gear 402 engages with the second complete bevel gear 5013, thereby driving the second rotating shaft 5015 to rotate, and the second rotating shaft 5015 drives the pushing cam 5011 to rotate. When the pushing cam 5011 rotates, it passes through the second notch 104 and extends to the top of the support frame 10, thereby vertically pushing up the group of cardboards farthest from the push plate 602, so that this group of cardboards is misaligned with the rest of the cardboards.

[0057] See also Figure 4 、 Figure 5 、 Figure 6 as well as Figure 7 In one embodiment, an eccentric wheel 5014 is further fixedly provided on the outside of the second rotating shaft 5015, and the transverse thrust assembly 502 includes a first piston rod 5021, an elastic member 5023, an air storage bend 5024, a third support seat 5025 and a second piston rod 5026. One end of the air storage bend 5024 extends above the plurality of cardboards, and the other end extends to the inside of the support frame 10. The third support seat 5025 is fixedly mounted on the inner top wall of the support frame 10 for fixing the air storage bend 5024. One end of the first piston rod 5021 contacts the circumferential side wall of the eccentric wheel 5014, and the other end extends from the air storage bend 5024 to the inside of the support frame 10. 024 is located at one end on the inner side of the support frame 10 and extends into the interior of the gas storage bend 5024 and telescopically cooperates with the gas storage bend 5024. A ring seat 5022 is fixedly provided on the outside of the first piston rod 5021. One end of the elastic member 5023 is connected to the ring seat 5022, and the other end is connected to the gas storage bend 5024, which is used to provide elastic support for the first piston rod 5021. One end of the second piston rod 5026 extends from one end of the gas storage bend 5024 located above several cardboards to the interior of the gas storage bend 5024 and telescopically cooperates with the gas storage bend 5024, and the other end extends to the outside of the gas storage bend 5024.

[0058] When the incomplete bevel gear 402 is engaged with the second complete bevel gear 5013 and drives the second rotating shaft 5015 and the pushing cam 5011 to rotate, the second rotating shaft 5015 can also drive the eccentric wheel 5014 to rotate. When a group of cardboards farthest from the push plate 602 is pushed by the pushing cam 5011 to be dislocated with the rest of the cardboards, the upper end of the cardboard extends to the side of the second piston rod 5026, and the lower end of the cardboard moves to the top of the limit plate 101. At this time, as the eccentric wheel 5014 rotates, the eccentric wheel 5014 rotates. The wheel 5014 pushes the first piston rod 5021 so that the first piston rod 5021 moves toward the inside of the air storage elbow 5024, so that the air inside the air storage elbow 5024 is pressurized. The pressurized air pushes the second piston rod 5026, which in turn drives the second piston rod 5026 to move toward the outside of the air storage elbow 5024, thereby pushing the upper end of the cardboard so that the cardboard is dumped onto the upper part of the conveying assembly 20, thereby realizing the cardboard unloading operation. When the cardboard is unloaded, as the incomplete bevel gear 402 and the second complete bevel gear 403 are connected, the cardboard is unloaded. The full bevel gear 5013 continues to mesh, the second shaft 5015, the eccentric wheel 5014 and the push cam 5011 continue to rotate, the push cam 5011 rotates from the second notch 104 into the inner side of the support frame 10, the elastic member 5023 pushes the ring seat 5022 and then pushes the first piston rod 5021 so that the first piston rod 5021 moves toward the outside of the gas storage elbow 5024, so that the air inside the gas storage elbow 5024 is pulled, and then the second piston rod 5026 is pulled toward the gas storage elbow 50 24 moves internally to realize the reset of the pushing cam 5011 and the second piston rod 5026. After the pushing cam 5011 and the second piston rod 5026 are completed, the incomplete bevel gear 402 is engaged with the first complete bevel gear 403, thereby driving the screw rod 404 to rotate, and the screw rod 404 drives the slide rod 405, the push rod 601 and the push plate 602 to move, thereby pushing a plurality of cardboards into a cardboard body position, so that the group of cardboards farthest from the push plate 602 acts on the side of the limit plate 101 again.

[0059] In one embodiment, the elastic member 5023 may be a spring or a metal spring, which is not limited here.

[0060] See also Figure 1In one embodiment, the conveying assembly 20 includes a conveying roller 201 and a plurality of conveying belts 202. The conveying rollers 201 are provided with two groups, and the two groups of conveying rollers 201 are rotatably mounted on the upper part of the support frame 10, wherein one group of the conveying rollers 201 is controlled to rotate by an external motor (not shown in the figure). The conveying belts 202 are provided with several groups, and the conveying belts 202 are sleeved between the two groups of conveying rollers 201. The conveying belts 202 are spaced apart along the length direction of the conveying rollers 201. The cutting assembly 30 includes a first rotating shaft 301 and a cutting disc 302. The first rotating shaft 301 is provided above the plurality of conveying belts 202 and is controlled to rotate by an external motor (not shown in the figure). The cutting disc 302 is provided in a one-to-one correspondence with the conveying belts 202. The cutting discs 302 are fixedly provided on the outside of the first rotating shaft 301, and the lower parts of the cutting discs 302 extend between the plurality of conveying belts 202.

[0061] An external motor drives one set of conveying rollers 201 to rotate. When one set of conveying rollers 201 rotates, it cooperates with the other set of conveying rollers 201 to drive the conveyor belt 202 to run, thereby conveying the cardboard unloaded on the conveyor belt 202. When the cardboard is conveyed to the position where the multiple cutting discs 302 are located, the external motor drives the first rotating shaft 301 to rotate, thereby driving the multiple cutting discs 302 to rotate. The multiple cutting discs 302 cut the cardboard into multiple parts, thereby completing the cutting of the cardboard.

[0062] See also Figure 1 In one embodiment, two groups of side baffles 102 are fixedly provided on the upper portion of the support frame 10 , and the two groups of side baffles 102 are relatively distributed.

[0063] By placing a number of vertically placed cardboards between the two sets of side baffles 102, the two sets of side baffles 102 are used to provide enclosure and limit for the cardboards, thereby ensuring that the cardboards can move smoothly when the push plate 602 pushes the cardboards.

[0064] In the embodiment of the present invention, when it is necessary to cut a number of cardboards, the cardboards to be cut can be placed on one side of the push plate assembly 60, so that the cardboards are placed vertically in sequence, and then the push plate assembly 60 is driven by the driving assembly 40 to move intermittently toward the conveying assembly 20. When the push plate assembly 60 moves intermittently, it pushes the cardboards so that the cardboards intermittently move toward the conveying assembly 20. During this process, the unloading assembly 50 is used to unload the cardboards onto the conveying assembly 20 in sequence, and the conveying assembly 20 conveys the cardboards in a straight manner. Then, the cutting assembly 30 is used to cut the cardboards conveyed by the conveying assembly 20 in sequence. Compared with the existing technology, when cutting the cardboards, there is no need for excessive manual intervention, and the continuous automatic board feeding operation of the cardboards can be realized, thereby improving the cardboard cutting efficiency.

[0065] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description. It is intended that all variations within the meaning and range of equivalents of the claims be embraced herein, and any reference signs in the claims should not be construed as limiting the claims to which they relate.

[0066] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A cardboard cutting device capable of automatically replacing cardboard, characterized in that: It includes support frame, conveying assembly, cutting assembly, driving assembly, plate unloading assembly and plate pushing assembly. The conveying assembly is installed at one end of the upper part of the support frame, and the push plate assembly is installed at the other end of the upper part of the support frame. The driving assembly is installed inside the supporting frame and is used to drive the push plate assembly to move intermittently toward the conveying assembly to intermittently push a number of vertically placed cardboards. The unloading plate assembly is arranged between the push plate assembly and the conveying assembly, and is used to sequentially unload the cardboards intermittently pushed by the push plate assembly onto the conveying assembly, and the conveying assembly conveys them straight. The cutting assembly is arranged above the conveying assembly and is used to cut the cardboard conveyed by the conveying assembly. A first notch is provided on the upper portion of the support frame. The driving assembly includes a motor, an incomplete bevel gear, a first complete bevel gear, a lead screw and a slide rod. The motor is fixedly mounted on the inner bottom wall of the support frame, the incomplete bevel gear is mounted on the output end of the motor, the screw is rotatably mounted on the inner top wall of the support frame, the first complete bevel gear is fixedly mounted on one end of the screw and can mesh with the incomplete bevel gear, one end of the sliding rod is sleeved on the outside of the screw and matched with the screw thread, and the other end extends from the first notch to the top of the support frame. The push plate assembly includes a push rod and a push plate. One end of the push rod is fixedly connected to the end of the slide rod located above the support frame, and the other end is fixedly connected to the push plate. The end of the screw rod away from the first full bevel gear is provided with a first support seat, which is fixedly mounted on the inner top wall of the support frame. A limit plate is fixed on the upper part of the support frame. The unloading assembly includes a vertical pushing assembly and a horizontal pushing assembly. When a group of cardboards farthest from the push plate is pushed to the side of the limit plate, the vertical pushing assembly is used to push the group of cardboards vertically upward. When the group of cardboards is misaligned with the rest of the cardboards, the horizontal pushing assembly is used to push the group of cardboards horizontally so that the group of cardboards is dumped to the upper part of the conveying assembly. A second notch is provided on the upper part of the support frame on one side of the limiting plate. An eccentric wheel is also fixedly arranged on the outside of the second rotating shaft.

2. A cardboard cutting device capable of automatically replacing cardboard according to claim 1, characterized in that: The vertical push assembly includes a push cam, a second support seat, a second full bevel gear and a second rotating shaft. The second support seat is fixedly mounted on the inner top wall of the support frame, the second rotating shaft passes through the second support seat and rotates with the second support seat, the pushing cam is fixedly set at one end of the second rotating shaft, the pushing cam is located directly below the second notch, the second complete bevel gear is fixedly set at the other end of the second rotating shaft and is distributed opposite to the first complete bevel gear, and the second complete bevel gear can mesh with the incomplete bevel gear.

3. A cardboard cutting device capable of automatically replacing cardboard according to claim 1, characterized in that: The transverse thrust assembly includes a first piston rod, an elastic member, an air storage elbow, a third support seat and a second piston rod. One end of the gas storage elbow extends above the cardboards, and the other end extends to the inside of the support frame. The third support seat is fixedly installed on the inner top wall of the support frame to fix the gas storage elbow. One end of the first piston rod contacts the circumferential side wall of the eccentric wheel, and the other end extends from the end of the gas storage elbow located on the inner side of the support frame to the inside of the gas storage elbow and cooperates with the gas storage elbow in telescopic manner. A ring seat is fixedly provided on the outside of the first piston rod. One end of the elastic member is connected to the ring seat, and the other end is connected to the gas storage elbow, so as to provide elastic support for the first piston rod. One end of the second piston rod extends from one end of the gas storage elbow located above the plurality of paperboards to the inside of the gas storage elbow and is telescopically matched with the gas storage elbow, and the other end extends to the outside of the gas storage elbow.

4. A cardboard cutting device capable of automatically replacing cardboard according to claim 3, characterized in that: The elastic member is a spring or a metal shrapnel.

5. A cardboard cutting device capable of automatically replacing cardboard according to claim 1, characterized in that: The conveying assembly includes conveying rollers and several conveying belts. There are two groups of conveyor rollers, which are rotatably installed on the upper part of the support frame. One group of conveyor rollers is controlled by an external motor for rotation. There are several groups of conveyor belts, which are sleeved between the two groups of conveyor rollers and spaced apart along the length direction of the conveyor rollers.

6. A cardboard cutting device capable of automatically replacing cardboard according to claim 5, characterized in that: The cutting assembly includes a first rotating shaft and a cutting disc. The first rotating shaft is arranged above several conveyor belts and is rotated by an external motor. Several groups of cutting discs are arranged corresponding to the conveyor belts. Several cutting discs are fixedly arranged outside the first rotating shaft, and the lower parts of the cutting discs extend between the conveyor belts.

7. A cardboard cutting device capable of automatically replacing cardboard according to claim 1, characterized in that: Two groups of side baffles are fixedly arranged on the upper part of the support frame, and the two groups of side baffles are distributed relatively.

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