Paperboard edge trimmer

Abstract

The utility model discloses a paperboard edge trimmer which comprises a machine box, a feeding opening is formed in the front end of the machine box, a feeding device is installed at the position of the feeding opening, a material returning opening is formed in the rear end of the machine box, a material returning groove is installed at the position of the material returning opening, and an edge trimming device is arranged at the upper end of the machine box. Waste materials cut off by the edge cutting device fall into the material returning groove. The device is more labor-saving in operation and safer.

Description

Technical Field

[0001] The utility model relates to a cardboard edge trimming machine. Background Art

[0002] Corrugated cardboard, also known as corrugated board, is made by bonding at least one layer of corrugated paper and a layer of containerboard (also called linerboard). It exhibits good elasticity and ductility. It is primarily used to make cartons, cardboard inserts, and other packaging materials for fragile goods. It is primarily made from traditional straw pulp and waste paper, which is beaten to create a base similar to yellow cardboard. This is then machined and rolled into a corrugated shape. The surface is then bonded to the containerboard using adhesives such as sodium silicate.

[0003] Corrugated cardboard is stronger than traditional cardboard. When making cartons with corrugated cardboard, it is necessary to ensure that the cut edge of the corrugated cardboard is flat.

[0004] The existing method is to use a trimming machine for cutting. The trimming machine is a traditional guillotine type. During operation, the blade is rotated downward to cut, and manual feeding and retracting are required. The blade is exposed throughout the operation.

[0005] The above-mentioned trimming machine has the following disadvantages in practical application:

[0006] First, manual feeding and pushing are troublesome, inefficient, and labor-intensive.

[0007] Second, the exposed blades pose a serious safety hazard.

[0008] Based on the above problems, we designed a cardboard trimming machine that is more labor-saving and safer to operate. Utility Model Content

[0009] The technical problem to be solved by the utility model is to provide a cardboard edge trimming machine which is more labor-saving and safer to operate.

[0010] The utility model is realized through the following technical solutions:

[0011] A cardboard trimming machine comprises a chassis, a front end of the chassis is provided with a feeding port, a feeding device is installed at the feeding port, a rear end of the chassis is provided with a return port, a return chute is installed at the return port, and a trimming device is provided at the upper end of the chassis, and waste material cut off by the trimming device falls into the return chute.

[0012] Preferably, the feeding device includes a frame, which is fixed at both sides of the feeding port, and a plurality of transmission rollers are arranged in parallel in the frame, a conveyor belt is installed between the plurality of transmission rollers, and a drive motor for driving the transmission rollers to rotate is arranged outside the frame, and the conveyor belt feeds the material toward the trimming device.

[0013] Preferably, the trimming device includes a cutting plate and a machine cover, the machine cover is installed on the top of the machine case, the cutting plate is movably installed in the machine cover, a guide rod is provided at the upper end of the cutting plate, a linear bearing matching the guide rod is installed on the top of the machine cover, a driving rod that drives the cutting plate to move up and down is installed on the top of the machine cover, a notch is provided on the plate surface of the cutting plate, the width of the notch is greater than the bandwidth of the conveyor belt, a baffle is provided at the bottom of the notch, the corrugated cardboard input through the conveyor belt is blocked by the baffle, the end face of the baffle facing the conveyor belt is a vertical plane, a blade is provided at the upper end of the notch, and the blade is located between the conveyor belt and the baffle.

[0014] Preferably, the driving rod is a hydraulic push rod or an electric push rod.

[0015] Preferably, the blade is arranged at an angle.

[0016] Preferably, the side of the baffle plate away from the conveyor belt is an inclined surface, and the waste materials after being discharged through the inclined surface fall into the material discharge trough.

[0017] Preferably, a through slot is provided on the side of the frame above the conveyor belt, a material guide plate is rotatably provided in the through slot, a shaft is provided between the material guide plate and the frame, and a bearing is provided between the shaft and the material guide plate.

[0018] Preferably, a transition beam is provided inside the chassis between the conveyor belt and the cutting plate, the distance between the transition beam and the cutting plate is less than 1 mm, the upper surface of the transition beam is flush with the upper surface of the conveyor belt, and a material guide slope is provided on the side of the transition beam facing the conveyor belt.

[0019] It also includes a controller, which is connected to the drive motor and the drive rod. The controller is equipped with a button switch. Each time the switch is pressed, the controller controls a set of system actions. A set of system actions includes the drive motor driving the conveyor belt for transportation. After the transportation is in place, the drive motor stops rotating, and the drive rod controls the cutting board to move downward to complete the trimming of the corrugated cardboard. After the trimming is completed, the drive rod moves upward and the drive motor rotates to eject the corrugated cardboard after the trimming is completed.

[0020] The beneficial effects of the utility model are:

[0021] In this device, the cutting plate is hidden in the chassis, and the blade is hidden during the entire cutting process, avoiding the risk of personal injury.

[0022] When the device is performing the trimming operation, the material is fed and returned through the conveyor belt. The staff only needs to place the cardboard on the conveyor belt and take it off from the conveyor belt, which reduces labor intensity and improves efficiency.

[0023] The structure of the device is relatively simple, the cost is relatively low and it is suitable for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 It is a structural diagram of the utility model;

[0026] Figure 2 Schematic diagram of the structure of the cutting board;

[0027] Figure 3 for Figure 2 Cross-sectional view at AA;

[0028] Figure 4 This is a schematic diagram of the cutting board before the knife is cut;

[0029] Figure 5 This is a schematic diagram of cutting the board. DETAILED DESCRIPTION

[0030] All features disclosed in this specification, or all steps in the disclosed methods or processes, except mutually exclusive features and / or steps, can be combined in any manner.

[0031] Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or similar features. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0032] In the description of the present invention, it should be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "center", "end", "length", "outer end", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0033] In addition, in the description of the present invention, “a plurality of” means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0034] In this utility model, unless otherwise specified or limited, the terms "disposed," "socketed," "connected," "through," and "inserted" should be understood in a broad sense. For example, they can refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0035] like Figure 1 The cardboard trimming machine shown includes a chassis 1, a feeding port 101 is provided at the front end of the chassis 1, a feeding device 2 is installed at the feeding port 101, a return port (not shown) is provided at the rear end of the chassis 1, a return chute 3 is installed at the return port, and a trimming device 4 is provided at the upper end of the chassis 1, and the waste cut off by the trimming device 4 falls into the return chute 3.

[0036] In the above technical solution, feeding and pushing are achieved through the feeding device 2, and the cut waste is separated and falls into the return chute 3 for separate processing.

[0037] See Figure 1 As shown, the feeding device 2 includes a frame 201, which is fixed at both sides of the feeding port 101. A plurality of transmission rollers 202 are arranged in parallel in the frame 201, and a conveyor belt 203 is installed between the plurality of transmission rollers 202. A driving motor 204 for driving the transmission rollers 202 to rotate is arranged outside the frame 201, and the conveyor belt 203 feeds the material toward the trimming device 4.

[0038] In the above technical solution, the driving motor 204 provides driving force to drive the transmission roller 202 to rotate, so that the conveyor belt 203 rotates to complete the feeding and unloading of the corrugated cardboard.

[0039] The driving motor 204 is a servo motor that is easy to control for forward and reverse rotation switching.

[0040] It also includes a controller, which is connected to the drive motor and the drive rod. The controller is equipped with a button switch. Each time the switch is pressed, the controller controls a set of system actions. A set of system actions includes the drive motor driving the conveyor belt for transportation. After the transportation is in place, the drive motor stops rotating, and the drive rod controls the cutting board to move downward to complete the trimming of the corrugated cardboard. After the trimming is completed, the drive rod moves upward and the drive motor rotates to eject the corrugated cardboard after the trimming is completed.

[0041] See Figure 1 、 Figure 2 and Figure 3 As shown, the trimming device 4 includes a cutting plate 401 and a cover 402, the cover 402 is installed on the top of the chassis 1, the cutting plate 401 is movably installed in the cover 402, the upper end of the cutting plate 401 is provided with a guide rod 403, a linear bearing 404 is installed on the top of the cover 402 to match the guide rod 403, and a driving rod 405 is installed on the top of the cover 402 to drive the cutting plate 401 to move up and down. A notch 406 is provided on the conveyor belt 203, the width of which is greater than the bandwidth of the conveyor belt 203, and a baffle 407 is provided at the bottom of the notch 406. The corrugated cardboard input through the conveyor belt 203 is blocked by the baffle 407, and the end face of the baffle 407 facing the conveyor belt 203 is a vertical plane. A blade 408 is provided at the upper end of the notch 406, and the blade 408 is located between the conveyor belt 203 and the baffle 407.

[0042] In the above technical solution, the conveyor belt 203 is scheduled to convey for 2 seconds, and the corrugated cardboard will be pushed to contact the baffle plate 407. We set the conveyor belt 203 to stop after conveying for 2.5 seconds to ensure the contact between the corrugated cardboard and the baffle plate 407. At this time, the cutting plate 401 starts to descend under the action of the driving rod, and the edge of the corrugated cardboard is cut off by the blade 408 to ensure that the edge of the corrugated cardboard is flat.

[0043] The driving rod 405 is an electric push rod.

[0044] See Figure 2 As shown, the blade 408 is arranged at an angle.

[0045] The advantage of the inclined setting of the blade 408 is that the blade will gradually come into contact with the corrugated cardboard, avoiding the situation where the cutting resistance is too large due to sudden contact.

[0046] See Figure 3As shown, the side of the baffle plate 407 away from the conveyor belt is a slope 444 , and the waste materials after being discharged through the slope 444 fall into the discharge chute 3 .

[0047] The arrangement of the inclined surface 444 allows for smooth blanking.

[0048] See Figure 1 As shown, a through groove (not shown) is provided on the side of the frame 201 above the conveyor belt 203, and a material guide plate 222 is rotatably provided in the through groove. A shaft 223 is provided between the material guide plate 222 and the frame 201, and a bearing (not shown) is provided between the shaft 223 and the material guide plate 222.

[0049] In the above technical solution, the fed corrugated cardboard is guided.

[0050] See Figure 4 and Figure 5 As shown, inside the chassis 1, a transition beam 199 is provided between the conveyor belt and the cutting plate, the distance between the transition beam 199 and the cutting plate 401 is less than 1 mm, the upper surface of the transition beam 199 is flush with the upper surface of the conveyor belt 203, and a material guide slope 198 is provided on the side of the transition beam 199 facing the conveyor belt.

[0051] The transition beam 199 mentioned above plays a supporting role on the corrugated cardboard, ensuring that the corrugated cardboard is smoothly cut when the cutting board 401 moves downward.

[0052] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that do not require creative effort should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection defined in the claims.

Claims

1. A cardboard trimming machine, characterized in that: The machine comprises a chassis, a feeding port is provided at the front end of the chassis, a feeding device is installed at the feeding port, a return port is provided at the rear end of the chassis, a return trough is installed at the return port, and a trimming device is provided at the upper end of the chassis, and the waste material cut off by the trimming device falls into the return trough.

2. The cardboard trimming machine according to claim 1, characterized in that: The feeding device includes a frame, which is fixed at both sides of the feeding port. A plurality of transmission rollers are arranged in parallel inside the frame, a conveyor belt is installed between the plurality of transmission rollers, and a driving motor for driving the transmission rollers to rotate is arranged outside the frame. The conveyor belt feeds the material toward the trimming device.

3. The cardboard trimming machine according to claim 2, characterized in that: The trimming device includes a cutting plate and a machine cover, the machine cover is installed on the top of the machine case, the cutting plate is movably installed in the machine cover, a guide rod is provided at the upper end of the cutting plate, a linear bearing matching the guide rod is installed on the top of the machine cover, and a driving rod that drives the cutting plate to move up and down is installed on the top of the machine cover, a notch is provided on the plate surface of the cutting plate, the width of the notch is greater than the bandwidth of the conveyor belt, a baffle is provided at the bottom of the notch, the corrugated cardboard input through the conveyor belt is blocked by the baffle, the end face of the baffle facing the conveyor belt is a vertical plane, and a blade is provided at the upper end of the notch, and the blade is located between the conveyor belt and the baffle.

4. The cardboard trimming machine according to claim 3, characterized in that: The driving rod is a hydraulic push rod or an electric push rod.

5. The cardboard trimming machine according to claim 3, characterized in that: The blade is arranged obliquely.

6. The cardboard trimming machine according to claim 3, characterized in that: The side of the baffle plate away from the conveyor belt is an inclined surface, and the waste materials after being withdrawn through the inclined surface fall into the withdrawing trough.

7. The cardboard trimming machine according to claim 2, characterized in that: A through slot is provided on the side of the frame and above the conveyor belt, a material guide plate is rotatably provided in the through slot, a shaft is provided between the material guide plate and the frame, and a bearing is provided between the shaft and the material guide plate.

8. The cardboard trimming machine according to claim 3, characterized in that: Inside the chassis, a transition beam is provided between the conveyor belt and the cutting plate. The distance between the transition beam and the cutting plate is less than 1 mm. The upper surface of the transition beam is flush with the upper surface of the conveyor belt. A material guide slope is provided on the side of the transition beam facing the conveyor belt.

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