Paper cutting machine for removing waste of packaging paper products

Abstract

The utility model discloses a packaging paper product waste cleaning and cutting machine which comprises a shell, a pneumatic unit, a paper cutting machine, a paper cutting machine, a paper cutting machine, a paper cutting machine, a paper cutting machine and a paper cutting machine, and the side face of the shell is provided with a pneumatic unit. And a handle is fixedly arranged on the pneumatic unit. The main wheel disc is rotatably arranged in the shell, and the main wheel disc is connected with the output end of the pneumatic unit; the secondary wheel disc is rotatably arranged in the shell, the secondary wheel disc is in transmission connection with the main wheel disc through a transmission belt, waste cleaning discs are symmetrically arranged on the two sides of a rotating shaft of the secondary wheel disc, and a plurality of scrapers which are detachably connected are evenly distributed on the waste cleaning discs in a circumferential matrix mode; a semi-arc adjusting plate; and a pawl. The packaging paper product waste cleaning and cutting machine solves the problems that an existing mechanical waste cleaning machine cannot be lubricated, a scraper shakes, waste cannot be accurately cleaned, or the scraper falls off to accidentally injure operators, and waste cleaning efficiency is low.

Description

Technical Field

[0001] This utility model relates to the field of waste removal machine technology, specifically a waste removal and paper cutting machine for packaging paper products. Background Technology

[0002] With the rapid development of the printing and packaging industry, the demand for processing materials such as cardboard, fine corrugated paper, and ordinary corrugated paper is increasing. After printing, die-cutting and other processes, a large amount of waste such as waste edges and waste paper scraps are generated. For example, after die-cutting various paper products (such as airplane holes, round holes, square holes, long strip holes, irregular holes, etc.), there will be residual waste paper. If these wastes are not removed in time, they will affect subsequent processing procedures and reduce product quality. The traditional method of waste removal is to use workers' hand hammers for trimming, which is inefficient due to manual operation.

[0003] Existing technologies that introduce mechanized waste removal machines to replace manual labor still suffer from low waste removal efficiency and easy paper snagging. Generally speaking, given the easily contaminated and oil-stained characteristics of paper products, existing waste removal machines do not allow oil lubrication of the sampling chain conveyor to ensure product quality. For example, application number CN202321560943.0 describes a paper box and color box printing conveyor, which uses a conveyor body to feed paper boxes into the printing unit for printing. However, the device has a drawback: the toothed blocks driven by the chain cannot properly handle the paperboard. The waste edges are cleaned, and slots are set to avoid paper jams. Although the limiting part and swing part are set so that the toothed blocks can avoid paper jams by swinging, the chain cannot be lubricated during frequent use. After long-term operation, there is uneven tension. Uneven tension of the toothed chain causes problems such as skipping teeth and slippage. The deterioration of the fit between the toothed chain and the sprocket affects the stability of the chain drive. At this time, the toothed blocks set on the chain will shake due to the loosening of the chain, which will prevent the blade tip from accurately cutting off the waste edges, or even fall off and injure the operator, resulting in incomplete waste removal and low efficiency. Utility Model Content

[0004] One object of this invention is to solve at least the aforementioned problems and / or defects, and to provide at least the advantages described below.

[0005] To achieve these objectives and other advantages according to this utility model, a waste paper cutting machine for packaging paper products is provided, comprising: a housing, on the side of which a pneumatic unit is provided, and a handle is fixedly provided on the pneumatic unit, and further comprising:

[0006] The main wheel is rotatably disposed inside the housing and is connected to the output end of the pneumatic unit;

[0007] The secondary wheel is rotatably disposed inside the housing, and the secondary wheel is connected to the main wheel by a transmission belt. The secondary wheel has cleaning discs symmetrically arranged on both sides of the rotation axis, and multiple sets of scrapers are evenly distributed in a circumferential matrix on the cleaning discs.

[0008] A semi-circular adjusting plate is rotatably disposed inside the housing, with one side of the adjusting plate laterally attached to the middle section of the transmission belt. The rotating shaft of the adjusting plate is connected to the housing via a one-way bearing, and adjusting gears and torque handles are respectively disposed on the rotating shaft inside and outside the housing.

[0009] A pawl is hinged to the inner wall of the housing via a shaft. A check spring is fixedly connected to the inner side of the housing. One end of the check spring is fixedly connected to a pawl, and the pawl's hook engages with the teeth of the adjusting gear.

[0010] Preferably, the handle is provided with a power switch, and an elastic pressing plate is provided on the side of the handle opposite to the power switch. A limiting ring with a notch is slidably installed at the front end of the handle, and the size of the notch of the limiting ring is larger than the size of the power switch.

[0011] Preferably, the blade of the scraper is U-shaped, and the tip of the scraper has a multi-toothed structure.

[0012] Preferably, a pipe is connected to one side of the exhaust port of the pneumatic unit, and the other end of the pipe is connected to the vicinity of the secondary wheel inside the housing.

[0013] This utility model has at least the following beneficial effects:

[0014] This device uses a pneumatically driven main wheel to drive a secondary wheel, which in turn drives a waste removal disc, enabling the scraper to rotate at high speed for efficient waste removal. The precise transmission effectively prevents uneven cuts between the upper and lower sections. By turning the torque handle, the tension of the transmission belt can be easily and steadily adjusted using the adjustment plate and ratchet, ensuring the stability of the device. The transmission belt offers advantages such as low noise, no lubrication required, and oil resistance, significantly improving the practicality and stability of the equipment.

[0015] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0016] Figure 1 This is a schematic cross-sectional view of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the lower protective plate structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the handle structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the handle structure of this utility model;

[0020] Figure 5 This is an enlarged schematic diagram of the semi-circular adjustment plate of this utility model;

[0021] Figure 6 This is an enlarged structural diagram of the scraper of this utility model;

[0022] Figure 7 This is a schematic diagram of the overall structure of this utility model;

[0023] The markings in the diagram are: 1. Outer shell, 11. Lower protective plate, 110. First single plate, 111. Last single plate, 112. Mounting knob, 113. First mounting position, 114. Second mounting position, 12. Handle, 121. Arc-shaped limit block, 13. Shell, 2. Pneumatic unit, 21. Exhaust port, 22. Pipe, 3. Handle, 31. On / off switch, 32. Elastic pressing plate, 33. Limiting ring, 331. Notch, 4. Main wheel, 5. Secondary wheel, 6. Drive belt, 7. Waste removal disc, 8. Scraper, 81. Blade tip, 9. Semi-arc adjusting plate, 91. Adjusting gear, 92. Twist handle, 93. Pawl, 94. Check spring. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0025] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0026] It should be noted that in the description of this utility model, the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "sleeved / connected", "connected", etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0028] Furthermore, in this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Moreover, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0029] The following is a detailed description of this novel experimental device with reference to the accompanying drawings:

[0030] Figure 1-7 This invention discloses a waste paper cutting machine for packaging paper products, comprising: a housing 1, a pneumatic unit 2 disposed on its side, a handle 3 fixedly disposed on the pneumatic unit 2, and further comprising:

[0031] The main wheel 4 is rotatably disposed inside the housing 1 and is connected to the output end of the pneumatic unit 2;

[0032] The secondary wheel 5 is rotatably disposed inside the outer casing 1, and the secondary wheel 5 is connected to the main wheel 4 by a transmission belt 6. The secondary wheel 5 has cleaning discs 7 symmetrically arranged on both sides of the rotation axis, and multiple sets of scrapers 8 are evenly distributed in a circumferential matrix on the cleaning discs 7.

[0033] A semi-circular adjusting plate 9 is rotatably disposed inside the housing 1, and one side of the adjusting plate 9 is laterally attached to the middle section of the transmission belt 6. The rotating shaft of the adjusting plate 9 is connected to the housing 1 through a one-way bearing, and an adjusting gear 91 and a torque handle 92 are respectively disposed on the rotating shaft inside and outside the housing 1.

[0034] A pawl 93 is hinged to the inner wall of the housing 1 via a shaft. A check spring 94 is fixedly connected to the inner side of the housing 1. One end of the check spring 94 is fixedly connected to the pawl 93, and the pawl of the pawl 93 meshes with the teeth of the adjusting gear 91.

[0035] Working principle:

[0036] The operator holds handle 3 and starts pneumatic unit 2 through external device. Pneumatic unit 2 converts the energy of compressed air into mechanical energy and outputs rotational power, thereby driving the main wheel 4 connected to it to start rotating inside the outer shell 1. When the main wheel 4 rotates, the secondary wheel 5 rotates synchronously through transmission belt 6. When the secondary wheel 5 rotates, it drives the cleaning discs 7 symmetrically arranged on both sides of its rotation axis to rotate synchronously. At this time, multiple sets of scrapers 8 evenly distributed in a circumferential matrix on the cleaning disc 7 rotate at high speed with the rotation of the cleaning disc 7, and the start operation is completed.

[0037] The operator moves the device to the paper products that need to be cleaned, and the high-speed rotating scraper 8 can scrape off the waste material on the edge of the paper products that need to be trimmed, and the waste cleaning operation is completed.

[0038] When the tension of the transmission belt 6 needs to be adjusted after the device has been used for a period of time, the operator turns the handle 92 located outside the housing 1. The handle 92 drives the adjusting plate 9 (the initial state of the adjusting plate 9 is that one side is horizontally attached to the transmission belt 6) to rotate. After rotation, the original inward half-arc of the adjusting plate 9 extends outward, and drives the loose transmission belt 6 to expand outward, increasing the center distance of the transmission belt 6 inside the housing 1, and re-tightening the transmission belt 6 to complete the adjustment operation.

[0039] In actual use, the adjusting plate 9 simply allows the transmission belt 6 to slide across without rotating itself. The rotating shaft of the adjusting plate 9 is connected to the outer casing 1 through a one-way bearing, enabling unidirectional rotation. During adjustment, the adjusting gear 91 on the rotating shaft rotates along with it. When the adjusting gear 91 rotates, the pawl 93 meshes with the adjusting gear 91, which allows for precise control of the rotation of the adjusting plate 9 and avoids limiting and fixing when not in use, thereby ensuring the stability of the adjustment.

[0040] When the adjusting gear 91 moves forward, the pawl 93 is driven to rotate by the gear teeth until one tooth of the adjusting gear 91 turns, and the pawl 93 returns to the initial state, and this process is repeated continuously. If the adjusting gear 91 wants to move in reverse at this time, it will be stuck by the pawl 93 and the adjusting gear at the meshing point, and it will not be able to move in reverse. Therefore, the pawl 93 can limit the rotation and play a positioning role, keeping the adjusting plate 9 in a specific position. The function of the check spring 94 is to keep the pawl 93 always having a circumferential force.

[0041] ② After actual use, the scraper 8 will wear out due to frequent friction with the edge of waste paper. Once the tooth tip wears out, its ability to hook the edge of waste paper will be greatly reduced, resulting in incomplete waste removal. The original chain-driven method required disassembling the device and replacing the entire chain to change the scraper. However, the scraper 8 of this device is fixedly installed (such as by welding) on ​​the waste removal disc 7 and driven by the secondary wheel disc 5. Only the waste removal disc 7 needs to be replaced. Moreover, the method of being driven by the secondary wheel disc 5 will not be affected by the shaking caused by the operation of the conveyor belt 6 itself, thus improving practicality.

[0042] ③ The transmission belt 6 was chosen instead of a chain because it has high transmission precision, effectively avoids the problem of inconsistent upper and lower cuts that may occur during waste removal, has low noise and low vibration, reduces wear and damage to parts caused by vibration, requires no lubrication, and avoids oil pollution to the working environment and waste materials; in order to avoid the impact of harsh environments such as high temperature on the transmission belt 6, a special rubber material (such as chloroprene rubber or hydrogenated nitrile rubber) that is adaptable to different temperatures and has properties such as oil resistance and acid and alkali resistance was selected.

[0043] ④ In order to avoid personnel injury caused by accidental contact of the scraper 8 when the device is not in use, the lower protective plate 11 of this device is changed to be composed of multiple single plates hinged together. The first single plate 110 is hinged to the bottom plate of the outer shell 1 on one side, and the top of the last single plate 111 is provided with a mounting knob 112 with a check spring. At the same time, the front side and the bottom of the outer shell 1 are respectively provided with a first mounting position 113 and a second mounting position 114, and each mounting position is provided with an L-shaped cavity.

[0044] When the device is not in use, the mounting screw 112 of the lower protective plate 11 is inserted into the first mounting position 113, so that it is in a semi-circular shape to wrap around the exposed part of the scraper 8 on the outer shell 1, thus forming protection for the scraper 8.

[0045] When the device is in use, the mounting screw 112 of the lower protective plate 11 is inserted into the second mounting position 114 to form a protective plate for preventing paper from flying at the lower end, thus realizing two uses of one structure, saving costs while improving practicality;

[0046] ⑤ Due to differences in users' height, weight, and habits, in order to accommodate different operators using this device, an adjustable gripping handle 12 is provided on the upper rear side of the outer shell 1. Specifically, it is a semi-circular shell 13 with a sliding groove and multiple bolt holes are provided through it. The detachable handle 12 with a grip has multiple bolt holes on its arc-shaped limiting block 121.

[0047] When in use, the operator inserts the arc-shaped limiting block 121 of the handle 12 into the sliding groove of the housing 13, and places it in any position on the housing 13 according to the user's habits and aligns it with the bolt holes. Finally, the handle 12 is fixed to the housing 13 with bolts to complete the installation. This eliminates the need for different operators to constantly adjust their grip posture, thus avoiding fatigue and potential operational errors.

[0048] ⑥ The specific structure of pneumatic unit 2 and one-way bearing is existing technology or commercially available products, and this article will not elaborate on its specific structure further;

[0049] In summary, this device achieves high-speed, efficient waste removal by pneumatically driving the main wheel 4 to drive the secondary wheel 5, which in turn drives the waste removal disc 7. The precise transmission effectively prevents inconsistent cuts. By rotating the handle 92, the tension of the transmission belt 6 can be easily and stably adjusted using the semi-circular adjusting plate 9 and the pawl 93, ensuring the device's stability. The transmission belt 6 offers advantages such as low noise, no lubrication required, and oil resistance, significantly improving the equipment's practicality and stability.

[0050] As described above, a power switch 31 is provided on the handle 3, and an elastic pressing plate 32 is provided on the side of the handle 3 opposite to the power switch 31. A limiting ring 33 with a notch 331 is slidably installed on the front end of the handle 3, and the size of the notch 331 of the limiting ring 33 is larger than the size of the power switch 31.

[0051] Working principle:

[0052] Before using the device, first rotate the notch 331 on the limiting ring 33 (initially stuck at the front end of the handle 3, at which point the elastic pressing plate 32 cannot contact the switch 31 due to the insertion of the limiting ring 33, thus preventing the switch 31 from being accidentally touched when not in use) to align it with the switch 31, so that it slides backward through the switch 31, thereby completing the safe unlocking. When the operator presses the elastic pressing plate 32 and touches the switch 31, the circuit is connected, the pneumatic unit 2 is started, and the compressed air is converted into mechanical energy to drive the main wheel 4, the secondary wheel 5 and the waste cleaning disc 7 to operate.

[0053] In actual use, the limit ring 33 can be slid backward away from the range of the elastic pressing plate 32, and the operator can put the tail end of the elastic pressing plate 32 into the notch 331 of the limit ring 33 to keep the switch 31 in the pressed state, so that the equipment can continue to run and reduce the fatigue caused by the operator's continuous pressing.

[0054] After use, slide the limiting ring 33 backward so that the tail end of the elastic pressing plate 32 slides out of the notch 331. Then slide the limiting ring 33 forward so that the elastic pressing plate 32 can no longer contact the switch 31 and the pneumatic unit 2 is turned off. At this time, the limiting ring 33 passes through the switch 31 again and rotates so that the switch 31 and the notch 331 are in different positions, thus improving the safety of the device.

[0055] In actual use, the outer ring of the handle 3 is equipped with a handle 3 protective plate 34 to further improve the safety of the device.

[0056] In the above scheme, the blade of the scraper 8 is U-shaped, and the tip 81 of the scraper 8 has a multi-tooth structure.

[0057] Working principle:

[0058] Because of its U-shaped blade, the scraper 8 can better conform to the surface contours of different shapes, providing more stable support and contact area. During rotation, the blade tip 81 contacts the edge of the waste paper with multiple cutting edges, increasing the cutting force and cutting area. Facing waste materials of different shapes and textures, the multi-blade design can cut the waste materials from multiple directions, greatly improving the efficiency and quality of waste removal, ensuring that the waste materials on the edges of paper products can be completely scraped off. Moreover, the blade tip 81 is made of more wear-resistant and corrosion-resistant materials, which can adapt to different working environments, reduce wear, and extend service life.

[0059] In the above scheme, a pipe 22 is connected to one side of the exhaust port 21 of the pneumatic unit 2, and the other end of the pipe 22 is connected to the vicinity of the secondary wheel 5 inside the outer shell 1.

[0060] Working principle: The high-pressure gas discharged by the pneumatic unit 2 is connected to the vicinity of the secondary wheel 5 through the exhaust port 21 and the pipe 22. The gas is used to blow away any paper scraps that may be hooked on the scraper 8, so as to avoid jamming caused by paper scraps, which would affect the service life and efficiency of the device. At the same time, the utilization of the exhaust gas also avoids the high-pressure gas from causing harm to the operator, thus improving safety.

[0061] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A waste removal paper converting machine for a paper product comprising: The shell is provided with a pneumatic unit on the side surface, and a handle is fixedly arranged on the pneumatic unit, characterized in that further comprising: a main wheel disc rotatably arranged in the shell and connected with the output end of the pneumatic unit; a secondary wheel disc rotatably arranged in the shell and drivingly connected with the main wheel disc by a transmission belt, and the secondary wheel disc is symmetrically provided with a waste cleaning disc on both sides of the rotation shaft, and a plurality of groups of scrapers are uniformly distributed on the waste cleaning disc in a circumferential matrix; a semi-arc adjusting plate rotatably arranged in the shell, and the adjusting plate is transversely attached to the middle section of the transmission belt on one side, the rotation shaft of the adjusting plate is connected with the shell through a one-way bearing, and an adjusting gear and a twist handle are respectively arranged on the rotation shaft inside and outside the shell; a pawl hinged to the inner wall of the shell through a shaft, a check spring is fixedly connected to the inner side of the shell, one end of the check spring is fixedly connected with the pawl, and the hook of the pawl is engaged with the gear teeth of the adjusting gear.

2. The packaging paper product waste-trimming and cutting machine according to claim 1, characterized in that, The handle is provided with a key, and the opposite side of the handle relative to the key is provided with an elastic pressing plate, the handle is slidably installed with a notched limiting ring at the front end, and the size of the notch of the limiting ring is larger than that of the key.

3. The packaging paper product waste-trimming and cutting machine according to claim 1, characterized in that, The blade body of the scraper is U-shaped, and the blade tip of the scraper is a multi-blade tooth structure.

4. The packaging paper product waste-trimming and cutting machine according to claim 1, characterized in that, One side of the exhaust hole of the pneumatic unit is communicated with a pipeline, and the other end of the pipeline is communicated relative to the vicinity of the secondary wheel disc in the shell.

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