Knife sharpening dust collection device

Abstract

The utility model discloses a knife sharpening dust collection device which comprises a knife sharpening box, a dust collection pipe assembly, a dust collection box and a fan, the knife sharpening box is connected with the dust collection box through the dust collection pipe assembly, the dust collection box is connected with the fan through a pipeline, and the fan is arranged on the dust collection box; the knife sharpening box is installed on a knife rest of the paper cutter in an up-down sliding mode and located below a blade of the paper cutter, and a knife feeding seam for the lower portion of the blade to enter is formed in the top face of the knife sharpening box. Two knife sharpening components are arranged in the knife sharpening box side by side in the length direction, and when the lower portion of the blade enters the knife sharpening box through the knife feeding seam, the grinding faces of the two knife sharpening components abut against the two sides of the cutting edge of the blade respectively. According to the knife sharpener, knife sharpening can be carried out under the condition that a blade of the paper cutter does not need to be dismantled, sweeps generated in the knife sharpening process are removed, use is convenient, and tissue can be effectively prevented from being polluted.

Description

Technical Field

[0001] The utility model relates to the technical field of paper cutters, and more particularly to a knife sharpening and dust collecting device. Background Art

[0002] At present, the paper cutting industry often uses a rotary paper cutter to cut paper. After cutting for a long time, the rotary paper cutter becomes blunt and needs to be sharpened by a sharpening device. Existing paper cutters generally have the problem of rapid blunting time of paper cutters and the need to frequently replace blades. The staff needs to remove the blunt blades, grind them, and then reinstall them back into the paper cutter, which reduces the production efficiency of the paper cutter. However, if the blade is sharpened on the paper cutter, the waste residue generated will contaminate the paper. Utility Model Content

[0003] In order to overcome the above-mentioned shortcomings of the prior art, the utility model provides a knife sharpening and dust collecting device, which can sharpen the knife without removing the paper cutter blade and remove the waste generated during sharpening. It is not only easy to use, but also can effectively prevent the contamination of the drawn paper.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A knife sharpening and dust collecting device comprises a knife sharpening box, a dust collecting tube assembly, a dust collecting box and a fan, wherein the knife sharpening box is connected to the dust collecting box through the dust collecting tube assembly, the dust collecting box is connected to the fan through a pipeline, and the fan is arranged on the dust collecting box; the knife sharpening box can be slidably mounted on a knife holder of a paper cutter and is located below a blade of the paper cutter, and a knife feed slot is arranged on the top surface of the knife sharpening box for the lower part of the blade to enter; two knife sharpening components are arranged in parallel along the length direction in the knife sharpening box, and when the lower part of the blade enters the knife sharpening box through the knife feed slot, the grinding surfaces of the two knife sharpening components respectively abut against both sides of the blade edge of the blade.

[0006] In a preferred technical solution, the knife holder of the paper cutter is provided with two slide rails parallel to each other in the vertical direction, and the knife holder is also provided with an adjustment mechanism between the two slide rails, the two ends of the knife sharpening box are respectively installed on the two slide rails through sliders, and the adjustment block of the adjustment mechanism is fixed on the knife sharpening box.

[0007] In a preferred technical solution, the sharpening component includes a base, a motor arranged on the base and a sharpening wheel connected to the motor shaft. The base is installed in the sharpening box through an adjustable screw; the side surfaces of the two sharpening wheels constitute two grinding surfaces that abut against the two sides of the blade.

[0008] In a preferred technical solution, the base includes a horizontally arranged base and a bracket portion which is angled with the base, the base is connected to the side wall of the sharpening box by an adjustable screw, the sharpening wheel and the motor are respectively mounted on both sides of the bracket portion, and the sharpening wheel and the motor are both mounted parallel to the bracket portion; among the two bases, the bracket portion of one base forms an acute angle with its base, and the bracket portion of the other base forms an obtuse angle with its base, so that the planes where the grinding surfaces of the two sharpening wheels are located form an angle which is the same as the angle of the blade.

[0009] In a preferred technical solution, the sharpening wheel includes a rotating wheel and a sharpening ring fixedly arranged on the side of the rotating wheel, the rotating wheel is connected to the motor shaft, and the side of the sharpening ring constitutes a grinding surface abutting against the side of the blade.

[0010] In a preferred technical solution, the dust suction pipe assembly includes a first air suction pipe, a second air suction pipe, a gas adapter, a adapter pipe, an air valve and a dust outlet pipe, and the air valve is fixedly mounted on the knife holder of the paper cutter through a bracket; the front end of the first air suction pipe is connected to the upper end of the side of the knife sharpening box, the front end of the second air suction pipe is connected to the lower end of the side of the knife sharpening box, the rear end of the first air suction pipe and the rear end of the second air suction pipe are respectively connected to the two air inlets of the gas adapter, the air outlet of the gas adapter is connected to the air inlet end of the air valve through the adapter pipe, and the air outlet end of the air valve is connected to the dust collecting box through the dust outlet pipe.

[0011] In a preferred technical solution, the connecting end of the first air suction pipe and the knife sharpening box is directly opposite to the abutment position of the grinding surfaces of the two sharpening components and the blade edges on both sides, and the connecting end of the first air suction pipe and the knife sharpening box is open.

[0012] In a preferred technical solution, a filter assembly is provided in the dust collecting box, and the filter assembly is arranged at the connection point between the dust outlet pipe and the dust collecting box.

[0013] In a preferred technical solution, the dust collecting box is a box body with a cabinet door on the front, and the cabinet door is hingedly connected to the front of the box body.

[0014] It can be seen from the above technical solution that compared with the prior art, the beneficial effects of the utility model are as follows: the utility model adopts a knife sharpening and dust suction device, which can sharpen the knife without removing the paper cutter blade through a knife sharpening box installed under the blade and capable of being moved up and down, and is easy to use, which helps to improve the production efficiency of the paper cutter; at the same time, the knife sharpening box itself is a relatively closed box body, and when the knife sharpening device sharpens the blade inside the knife sharpening box, the fan uses the dust suction pipe assembly to suck the waste chips generated by the knife sharpening into the dust collection box, so as to avoid the waste chips from splashing and effectively prevent the paper from being contaminated.

[0015] In addition, other advantages of the present invention will be given in the following description, and some will become apparent from the following description or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the knife sharpening and dust collection device;

[0017] Figure 2 for Figure 1 The structural diagram of part A in the figure;

[0018] Figure 3 It is a schematic diagram of the structure of two sharpening components;

[0019] Figure 4 Schematic diagram of the working status of the sharpening component. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it should be understood that the terms "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the 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 a limitation on the present invention. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0022] In one embodiment, Figure 1-4 As shown, a knife sharpening and dust collection device comprises a knife sharpening box 1, a dust collection pipe assembly 2, a dust collection box 3 and a fan 4, wherein the knife sharpening box 1 is connected to the dust collection box 3 through the dust collection pipe assembly 2, the dust collection box 3 is connected to the fan 4 through a pipeline, and the fan 4 is arranged on the dust collection box 3; the knife sharpening box 1 can be slidably installed on the knife holder 100 of the paper cutter and is located below the blade 200 of the paper cutter, and the top surface of the knife sharpening box 1 is provided with a knife feed slot 11 for the lower part of the blade 200 to enter; two knife sharpening components are arranged side by side along the length direction in the knife sharpening box 1, and when the lower part of the blade 200 enters the knife sharpening box 1 through the knife feed slot 11, the grinding surfaces of the two knife sharpening components respectively abut against the two sides of the blade edge of the blade 200.

[0023] The knife feed slit 11 is located directly below the blade 200 , so that the lower portion of the blade 200 enters the inside of the knife sharpening box 1 through the knife feed slit 11 when the knife sharpening box 1 moves upward.

[0024] In specific implementation, the blade 200 of the rotary circular knife is installed on the paper cutter. When the blade needs to be sharpened after cutting paper, since the sharpening box 1 is arranged below the blade 200 and is provided with a knife feed slit 11, the blade 200 does not need to be disassembled. The sharpening box 1 can be moved up so that the lower part of the blade 200 enters the sharpening box 1 through the knife feed slit 11, and the blade edge is directly sharpened by the sharpening component, so that the blade 200 can be directly sharpened on the paper cutter. After the sharpening is completed, the sharpening box 1 is moved down so that the blade 200 leaves the sharpening box 1, and the blade 200 can continue to be used for cutting paper. The entire sharpening process does not require the blade 200 to be disassembled, and the operation is more convenient.

[0025] In this embodiment, the sharpening component sharpens the blade 200 to keep the blade 200 sharp; at the same time, the fan 4 creates a negative pressure in the dust box 3, causing the dust box 3 to generate suction. Since the sharpening component is arranged in a relatively closed box body, the waste chips generated by grinding are sucked into the dust box 3 through the dust suction pipe assembly 2 in the box body, thereby removing the waste chips generated when sharpening the blade 200 and effectively preventing contamination of the paper.

[0026] In this embodiment, two slide rails are provided on the knife holder 100 of the paper cutter in parallel in the vertical direction, and an adjustment mechanism is also provided between the two slide rails. The two ends of the knife sharpening box 1 are respectively installed on the two slide rails through sliders, and the adjustment block of the adjustment mechanism is fixed on the knife sharpening box 1.

[0027] During specific implementation, the position of the knife sharpening box 1 can be adjusted by a positioning mechanism, and the positioning mechanism can be a screw positioning mechanism or a pneumatic positioning mechanism.

[0028] In this embodiment, the sharpening component includes a base 12, a motor 13 arranged on the base 12, and a sharpening wheel 14 connected to the shaft of the motor 13. The base 12 is installed in the sharpening box 1 through an adjustable screw, and the position is adjustable; the side surfaces of the two sharpening wheels 14 constitute two grinding surfaces that abut against the two sides of the blade.

[0029] In this embodiment, the base 12 includes a horizontally arranged base and a bracket portion that is angled with the base, the base is connected to the side wall of the sharpening box 1 through an adjustable screw, the sharpening wheel 14 and the motor 13 are respectively installed on both sides of the bracket portion, and the sharpening wheel 14 and the motor 13 are installed parallel to the bracket portion; in the two bases 12, the bracket portion of one base 12 forms an acute angle with its base, and the bracket portion of the other base 12 forms an obtuse angle with its base, so that the planes where the grinding surfaces of the two sharpening wheels 14 are located form an angle that is the same as the angle of the blade.

[0030] The base and the bracket of the base 12 may be integrally formed, and the distance between the two sharpening components may be adjusted by adjusting the screw rod, so as to accommodate blades 200 of different thicknesses.

[0031] In this embodiment, the two sharpening components are arranged in parallel along the length direction. When the blade 200 rotates, one side of the blade first passes through the grinding surface of one sharpening component, and then the other side of the blade passes through the grinding surface of the other sharpening component, so that the sharpening of the blades on both sides of the blade 200 is completed in sequence. In specific implementation, the two motors 13 respectively drive the two sharpening wheels 14 to rotate simultaneously to grind the two sides of the blade of the circular knife, so that the two sides of the blade of the circular knife can be sharpened at one time, thereby improving the sharpening efficiency.

[0032] In this embodiment, the sharpening wheel 14 includes a rotating wheel and a sharpening ring fixedly arranged on the side of the rotating wheel, the rotating wheel is connected to the shaft of the motor 13, and the side of the sharpening ring constitutes a sharpening surface that abuts against the side of the blade. Since the side of the sharpening ring is used as the sharpening surface, the sharpening area can be increased, so that the sharpening can be performed more efficiently. At the same time, when the sharpening ring is worn out, only the sharpening ring needs to be replaced instead of the entire sharpening wheel 14, which effectively saves costs.

[0033] In this embodiment, the dust suction pipe assembly 2 includes a first suction pipe 21, a second suction pipe 22, a gas adapter 23, a transfer pipe, a gas valve 24 and a dust outlet pipe 25. The gas valve 24 is fixedly mounted on the knife holder 100 of the paper cutter through a bracket.

[0034] The front end of the first air intake pipe 21 is connected to the upper end of the side of the knife sharpening box 1, and the front end of the second air intake pipe 22 is connected to the lower end of the side of the knife sharpening box 1. The rear end of the first air intake pipe 21 and the rear end of the second air intake pipe 22 are respectively connected to the two air inlets of the gas adapter 23, and the air outlet of the gas adapter 23 is connected to the air inlet end of the air valve 24 through the adapter tube, and the air outlet end of the air valve 24 is connected to the dust collecting box 3 through the dust outlet pipe 25.

[0035] In this embodiment, the connecting end of the first air intake pipe 21 and the knife sharpening box 1 is directly opposite to the abutting position of the grinding surfaces of the two sharpening components and the two sides of the blade 200, and the connecting end of the first air intake pipe 21 and the knife sharpening box 1 is open.

[0036] In the above embodiment, the first suction pipe 21 is used to directly absorb the waste chips generated by the grinding blade 200, and the second suction pipe 22 is used to absorb the heavier chips that fall to the bottom of the sharpening box 1 during grinding, so that the dust is more thoroughly sucked. In addition, the connecting end of the first suction pipe 21 and the sharpening box 1 adopts an open structure, so that the suction area of ​​the first suction pipe 21 is larger, and a better dust suction effect can be achieved.

[0037] In this embodiment, a filter assembly is provided in the dust box 3, and the filter assembly is provided at the connection between the dust outlet pipe 25 and the dust box 3. In this embodiment, by providing a filter assembly at the connection between the dust suction pipe assembly 2 and the dust box 3, the suctioned waste is filtered to prevent the waste from entering the pipe of the fan 4. In specific implementation, the filter assembly can be made of commonly used dust filter materials, etc.

[0038] In this embodiment, the dust box 3 is a box body with a cabinet door on the front, and the cabinet door is hingedly connected to the front of the box body. After using the dust box 3 to vacuum for a period of time, the cabinet door is opened to clean up the waste in the dust box 3, and the dust box 3 is easy to clean.

[0039] During specific implementation, a sealing gasket may be provided between the cabinet door and the box body to play a sealing role and ensure the sealing of the dust box 3 .

[0040] Other structures and operations of the knife sharpening and dust collection device according to the embodiment of the utility model are known to those skilled in the art and will not be described in detail here.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the description of this specification, the reference terms "embodiment", "specific embodiment", "example" and the like mean that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present invention.

[0043] In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined with each other in any one or more embodiments or examples in a suitable manner without interference or contradiction.

Claims

1. A knife sharpening and dust collecting device, characterized in that: It includes a knife sharpening box, a dust suction pipe assembly, a dust collecting box and a fan, wherein the knife sharpening box is connected to the dust collecting box through the dust suction pipe assembly, the dust collecting box is connected to the fan through a pipeline, and the fan is arranged on the dust collecting box; The knife sharpening box can be slidably mounted on the knife frame of the paper cutter and is located below the blade of the paper cutter. The top surface of the knife sharpening box is provided with a knife feed slot for the lower part of the blade to enter. Two sharpening components are arranged in parallel in the length direction in the sharpening box. When the lower part of the blade enters the sharpening box through the blade feed slit, the grinding surfaces of the two sharpening components abut against both sides of the blade edge of the blade respectively.

2. A knife sharpening and dust collecting device according to claim 1, characterized in that: The knife frame of the paper cutter is provided with two slide rails parallel to each other in the vertical direction, and the knife frame is also provided with an adjustment mechanism between the two slide rails, the two ends of the knife sharpening box are respectively installed on the two slide rails through sliders, and the adjustment block of the adjustment mechanism is fixed on the knife sharpening box.

3. A knife sharpening and dust collecting device according to claim 2, characterized in that: The knife sharpening component comprises a base, a motor arranged on the base and a knife sharpening wheel connected to the motor shaft; the base is installed in the knife sharpening box through an adjustable screw; the side surfaces of the two knife sharpening wheels constitute two grinding surfaces abutting against the two sides of the blade.

4. The knife sharpening and dust collecting device according to claim 3, characterized in that: The base comprises a horizontally arranged base and a bracket portion which is angled with the base, the base is connected to the side wall of the sharpening box through an adjustable screw, the sharpening wheel and the motor are respectively installed on both sides of the bracket portion, and the sharpening wheel and the motor are both installed parallel to the bracket portion; In the two bases, the bracket part of one base forms an acute angle with its base, and the bracket part of the other base forms an obtuse angle with its base, so that the planes where the grinding surfaces of the two grinding wheels are located form an angle that is the same as the blade angle.

5. The knife sharpening and dust collecting device according to claim 4, characterized in that: The grinding wheel comprises a rotating wheel and a grinding ring fixedly arranged on the side of the rotating wheel. The rotating wheel is connected to the motor shaft. The side of the grinding ring constitutes a grinding surface abutting against the side of the blade.

6. The knife sharpening and dust collecting device according to claim 1, characterized in that: The dust suction pipe assembly includes a first suction pipe, a second suction pipe, a gas adapter, a transfer pipe, an air vent valve and a dust outlet pipe, and the air vent valve is fixedly mounted on the knife frame of the paper cutter through a bracket; The front end of the first air intake pipe is connected to the upper end of the side of the sharpening box, the front end of the second air intake pipe is connected to the lower end of the side of the sharpening box, the rear ends of the first air intake pipe and the second air intake pipe are respectively connected to the two air inlets of the gas adapter, the air outlet of the gas adapter is connected to the air inlet end of the air valve through the adapter tube, and the air outlet end of the air valve is connected to the dust collecting box through the dust outlet pipe.

7. The knife sharpening and dust collecting device according to claim 6, characterized in that: The connecting end between the first air suction pipe and the knife sharpening box is directly opposite to the abutting position between the grinding surfaces of the two knife sharpening components and the two sides of the blade edge of the blade, and the connecting end between the first air suction pipe and the knife sharpening box is open.

8. The knife sharpening and dust collecting device according to claim 6, characterized in that: A filter assembly is arranged in the dust collecting box, and the filter assembly is arranged at the connection point between the dust outlet pipe and the dust collecting box.

9. A knife sharpening and dust collecting device according to any one of claims 1 to 8, characterized in that: The dust collecting box is a box body with a cabinet door on the front, and the cabinet door is hingedly connected to the front of the box body.

Images