Paper cutter sharpener

Abstract

The utility model provides a paper cutter sharpener, including frame, rotating shaft, rotation drive piece, inner polishing disk, outer polishing disk, telescopic drive piece and liquid supply box, the frame is equipped with mounting vertical plate, the rotation drive piece is arranged on one side of mounting vertical plate, the rotating shaft is connected with the output end of rotation drive piece, the telescopic drive piece is connected on mounting vertical plate, and the liquid supply box is connected with the inner polishing disk and the outer polishing disk. The inner grinding disc and the outer grinding disc are both rotationally connected to the lower portion of the telescopic driving part, a liquid passing hole is formed in the inner grinding disc, and the liquid supply box communicates with the liquid passing hole through a liquid supply pipe. According to the cutter sharpener for the paper cutter, the rotary driving piece is used for driving the cutting disc to rotate, the telescopic driving piece can drive the inner polishing disc and the outer polishing disc to move downwards synchronously, the outer edges of the two end faces of the cutting disc are polished, and polishing liquid in the liquid supply box is conveyed to the cutting disc through the liquid supply pipe and the liquid passing hole of the inner polishing disc; and the grinding efficiency can be improved, sparks are prevented from splashing in the grinding process, and good use safety is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of knife sharpeners, and more specifically relates to a paper cutter sharpener. Background Art

[0002] In carton processing equipment, disc cutters are often used to cut cardboard. During use, the disc cutter will gradually wear out the blade at the edge of the cutter disc. In order to ensure the processing accuracy of the carton, the disc cutter blade needs to be polished regularly.

[0003] In the existing technology, the two sides of the disc knife edge are mostly ground twice by hand with the help of a grinding wheel. There is a problem of sparks flying during grinding. The above operation process is very dangerous. Due to the different operating levels of workers, the grinding quality is difficult to guarantee, which affects the subsequent cutting accuracy and cutting quality. Utility Model Content

[0004] The purpose of the utility model is to provide a paper cutter sharpening machine, which can effectively improve the grinding efficiency of the disc knife and ensure the grinding quality of the disc knife.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a paper cutter sharpener, including a frame, a rotating shaft, a rotating drive member, an inner grinding disc, an outer grinding disc, a telescopic drive member and a liquid supply tank, a mounting vertical plate is provided on the frame, the rotating drive member is arranged on one side of the mounting vertical plate, the rotating shaft is connected to the output end of the rotating drive member and horizontally passes through the mounting vertical plate, the outer end of the rotating shaft is used to mount the disc knife, the telescopic drive member is connected to the mounting vertical plate in the up and down directions, the inner grinding disc and the outer grinding disc are both rotatably connected to the bottom of the telescopic drive member, the inner grinding disc is used to grind the inner end surface edge of the disc knife, the outer grinding disc is used to grind the outer end surface edge of the disc knife, the inner grinding disc is provided with an axially penetrating liquid hole for supplying grinding liquid to the disc knife, and the liquid supply tank is connected to the liquid hole through a liquid supply pipe.

[0006] In one possible implementation, a vertical plate extending downward is provided at the lower end of the telescopic drive member, the inner grinding disc is rotatably connected to the vertical plate via a first rotating shaft, and the outer grinding disc is rotatably connected to the vertical plate via a second rotating shaft, and the first rotating shaft and the second rotating shaft are respectively arranged through the vertical plate.

[0007] In a possible implementation, a side of the first rotating shaft close to the inner grinding disc extends downwardly and tilted, and a side of the second rotating shaft close to the inner grinding disc extends upwardly and tilted.

[0008] In some embodiments, a first sleeve and a second sleeve are provided through the vertical plate, a first bearing for mounting the first rotating shaft is provided in the first sleeve, and a second bearing for mounting the second rotating shaft is provided in the second sleeve.

[0009] In some embodiments, the inner grinding disc and the outer grinding disc gradually extend from the outer periphery to the axis and tilt toward the side away from the disc cutter. The inner grinding disc and the outer grinding disc are respectively provided with grinding rings on their end faces adjacent to the disc cutter, and the grinding rings are arranged near the outer peripheral edge of the inner grinding disc or the outer grinding disc.

[0010] In a possible implementation, a collecting cover is provided on the side of the mounting plate and is arranged around the outside and below of the disc cutter. The opening of the collecting cover is arranged upward and is used to collect the polishing liquid dropped from the disc cutter.

[0011] In some embodiments, both sides of the collecting cover have upwardly extending extensions, and a drain pipe is further provided at the bottom of the collecting cover.

[0012] In one possible implementation, a mounting plate is provided on the outer periphery of the rotating shaft, and a clamping plate is also provided on the outer end of the rotating shaft for cooperating with the mounting plate to clamp the disc cutter from both sides. The clamping plate is connected to the mounting plate through a connecting piece that passes through the disc cutter.

[0013] In one possible implementation, the telescopic drive member is an adjustable stroke cylinder, which includes a main body and two telescopic rods. The two telescopic rods are respectively arranged to pass through the main body in the upper and lower directions, and the upper ends of the two telescopic rods are respectively provided with stroke adjustment sleeves.

[0014] In some embodiments, a pressure regulating valve connected to the telescopic drive member is provided on the mounting plate, and the pressure regulating valve is used to adjust the pressure value of the telescopic drive member to control the pressure of the inner grinding disc and the outer grinding disc on the disc cutter.

[0015] Compared with the prior art, the solution shown in the embodiment of the present application utilizes a rotating drive member to drive the disc cutter at the outer end of the rotating shaft to rotate, and the telescopic drive member can drive the inner grinding disc and the outer grinding disc to move downward synchronously, and simultaneously form a grinding effect on the outer edges of the two end surfaces of the disc cutter, thereby effectively improving the grinding speed. The grinding liquid in the liquid supply tank is delivered to the disc cutter through the liquid supply pipe and the liquid hole of the inner grinding disc, which helps to speed up the grinding efficiency, avoid the splashing of sparks during the grinding process, and has good safety in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions 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 labor.

[0017] Figure 1 A schematic structural diagram of a paper cutter sharpener provided by an embodiment of the present utility model;

[0018] Figure 2 For the embodiment of the utility model Figure 1 Schematic diagram of the main structure of the middle paper cutter sharpener;

[0019] Figure 3 For the embodiment of the utility model Figure 1 Schematic diagram of the exploded structure of the paper cutter sharpener.

[0020] Among them, the reference numerals in the figures are:

[0021] 1. Frame; 11. Mounting plate; 12. Pressure regulating valve; 13. Hand valve; 14. Avoidance hole; 2. Rotating shaft; 21. Mounting plate; 22. Pressing plate; 23. Connecting piece; 3. Rotating drive member; 4. Inner grinding disc; 41. First rotating shaft; 42. Liquid hole; 43. First sleeve; 44. First bearing; 5. Outer grinding disc; 51. Second rotating shaft; 52. Second sleeve; 53. Grinding ring; 54. Second bearing; 6. Telescopic drive member; 61. Main body; 62. Telescopic rod; 63. Stroke adjustment sleeve; 64. Vertical plate; 7. Liquid supply tank; 8. Collecting cover; 81. Extension part; 82. Drain pipe; 9. Disc knife. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or indirectly on the other element. It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and 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, and therefore cannot be understood as a limitation on the present invention. The terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "several" means two or more, unless otherwise clearly and specifically defined.

[0024] Please also refer to Figures 1 to 3The paper cutter sharpener provided by the present invention will now be described. The paper cutter sharpener comprises a frame 1, a rotating shaft 2, a rotating drive member 3, an inner grinding disc 4, an outer grinding disc 5, a telescopic drive member 6, and a liquid supply tank 7. The frame 1 is provided with a mounting plate 11. The rotating drive member 3 is arranged on one side of the mounting plate 11. The rotating shaft 2 is connected to the output end of the rotating drive member 3 and horizontally passes through the mounting plate 11. The outer end of the rotating shaft 2 is used to mount a circular cutter 9. The telescopic drive member 6 is connected to the mounting plate 11 in the vertical direction. The inner grinding disc 4 and the outer grinding disc 5 are both rotatably connected to the bottom of the telescopic drive member 6. The inner grinding disc 4 is used to grind the inner end surface edge of the circular cutter 9, and the outer grinding disc 5 is used to grind the outer end surface edge of the circular cutter 9. The inner grinding disc 4 is provided with an axially penetrating liquid hole 42 for supplying grinding liquid to the circular cutter 9. The liquid supply tank 7 is connected to the liquid hole 42 via a liquid supply pipe.

[0025] Compared with the prior art, the paper cutter sharpener provided in this embodiment utilizes a rotary drive member 3 to drive the disc cutter 9 at the outer end of the rotating shaft 2 to rotate, and the telescopic drive member 6 can drive the inner grinding disc 4 and the outer grinding disc 5 to move downward synchronously, and simultaneously form a grinding effect on the outer edges of the two end surfaces of the disc cutter 9, thereby effectively improving the grinding speed. The grinding liquid in the liquid supply tank 7 is delivered to the disc cutter 9 through the liquid supply pipe and the liquid hole 42 of the inner grinding disc 4, which helps to speed up the grinding efficiency, avoid the splashing of sparks during the grinding process, and has good safety in use.

[0026] In this embodiment, the output shaft of the rotating drive member 3 extends in the horizontal direction, and the rotating shaft 2 is arranged to pass through the mounting plate 11 in the horizontal direction. The diameters of the inner grinding disc 4 and the outer grinding disc 5 are equal. The two are respectively arranged on both sides above the disc cutter 9, and can synchronously grind the edge positions of the two end surfaces of the disc cutter 9, thereby effectively improving the grinding efficiency and ensuring the grinding accuracy.

[0027] The polishing liquid in the liquid supply tank 7 is smoothly delivered to the liquid hole 42 at the axis of the inner grinding disc 4 through the liquid pipe, and then falls onto the disc cutter 9, ensuring that the disc cutter 9 is effectively lubricated during the grinding process and preventing the generation of sparks. Specifically, the outer side of the inner grinding disc is provided with a guide surface that extends obliquely toward the side near the disc cutter 9 to ensure effective guidance of the polishing liquid.

[0028] In one possible implementation, see Figures 1 to 3 The lower end of the telescopic driving member 6 is provided with a vertical plate 64 extending downward. The inner grinding disc 4 is rotatably connected to the vertical plate 64 through the first rotating shaft 41, and the outer grinding disc 5 is rotatably connected to the vertical plate 64 through the second rotating shaft 51. The first rotating shaft 41 and the second rotating shaft 51 are respectively set through the vertical plate 64.

[0029] In this embodiment, the inner grinding disc 4 and the outer grinding disc 5 are respectively rotatably connected to the vertical plate 64. During grinding, the rotating shaft 2 drives the disc cutter 9 to rotate. The inner grinding disc 4 and the outer grinding disc 5 have a certain rotation speed driven by the disc cutter 9, but the rotation speed is much smaller than the rotation speed of the disc cutter 9. Friction can be formed between the disc cutter 9, thereby avoiding the spark splashing caused by rigid grinding and ensuring a good grinding effect.

[0030] In one possible implementation, see Figures 1 to 3 The first rotating shaft 41 extends downwardly at an angle close to the inner grinding disc 4 , and the second rotating shaft 51 extends upwardly at an angle close to the inner grinding disc 4 .

[0031] In this embodiment, since the outer edge of the circular blade 9 forms the cutting edge, the thickness gradually decreases at the edge. To meet the aforementioned grinding dimension requirements, the main axes of the inner and outer grinding discs 4 and 5 are arranged at a certain angle to the horizontal plane. The main axis of the inner grinding disc 4 is tilted downward relative to the horizontal plane, while the main axes of the outer grinding discs are tilted upward relative to the horizontal plane. These two tilt angles are vertically equal, forming symmetrical inclined surfaces on both sides of the circular blade 9, ensuring a precise grinding effect.

[0032] For some examples, see Figures 1 to 3 The vertical plate 64 is provided with a first sleeve 43 and a second sleeve 52. The first sleeve 43 is provided with a first bearing 44 for mounting the first rotating shaft 41, and the second sleeve 52 is provided with a second bearing 54 for mounting the second rotating shaft 51. To meet the installation requirements of the inner grinding disc 4 and the outer grinding disc 5, the first sleeve 43 and the second sleeve 52 are provided horizontally and spaced apart on the vertical plate 64. The first bearing 44 is provided in the first sleeve 43, and the second bearing 54 is provided in the second sleeve 52, thereby meeting the rotation requirements of the inner grinding disc 4 and the outer grinding disc 5.

[0033] Furthermore, to facilitate the installation of the first and second sleeves 43, 52, a clearance hole 14 is provided through the mounting plate 11. This clearance hole 14 allows for the first and second sleeves 43, 52 to be installed, thus facilitating the connection of the liquid supply pipe. A rotary joint connects the liquid supply pipe to the first shaft 41, ensuring that the first shaft 41 rotates while simultaneously supplying liquid.

[0034] For some examples, see Figures 1 to 3 The inner grinding disc 4 and the outer grinding disc 5 gradually extend obliquely from the outer periphery to the axis toward the side away from the disc cutter 9. The inner grinding disc 4 and the outer grinding disc 5 are respectively provided with grinding rings 53 on the end surfaces adjacent to the disc cutter 9. The grinding rings 53 are arranged near the outer peripheral edge of the inner grinding disc 4 or the outer grinding disc 5.

[0035] In this embodiment, the inner and outer grinding discs 4 and 5 should possess a certain degree of structural strength. To this end, the sides of both discs facing away from the cutting disc 9 are tapered. This structure enhances the structural strength of the inner and outer grinding discs 4 and 5. Furthermore, grinding rings 53 are provided on the end surfaces of both discs adjacent to the cutting disc 9. Made of a material with excellent grinding properties, the grinding rings 53 enhance friction with the cutting disc 9 and improve grinding efficiency.

[0036] In one possible implementation, see Figures 1 to 3 The side of the mounting plate 11 is provided with a collecting cover 8 arranged around the outside and below of the disc cutter 9. The collecting cover 8 is opened upward and is used to collect the polishing liquid dropped from the disc cutter 9. The collecting cover 8 can effectively collect the polishing liquid dropped from the disc cutter 9, avoiding environmental pollution caused by liquid splashing. In addition, the recovered polishing liquid can be reused through subsequent filtration and other steps.

[0037] On this basis, the collection hood 8 has upwardly extending extensions 81 on both sides, and a drainage pipe 82 is provided at the bottom of the collection hood 8. The extensions 81 can intercept and collect the polishing liquid thrown off the disc 9, facilitating its delivery to the collection hood 8 below. The drainage pipe 82 at the bottom of the collection hood 8 facilitates the discharge of the polishing liquid, and a valve can be provided to achieve a timed discharge effect.

[0038] In one possible implementation, see Figures 1 to 3 A mounting plate 21 is provided on the outer periphery of the rotating shaft 2, and a clamping plate 22 is also provided on the outer end of the rotating shaft 2 for cooperating with the mounting plate 21 to clamp the disc cutter 9 from both sides. The clamping plate 22 is connected to the mounting plate 21 through a connecting piece 23 provided through the disc cutter 9.

[0039] In this embodiment, when the cutting disc 9 is mounted on the rotating shaft 2, the axial position of the cutting disc 9 is limited by the mounting plate 21 at the outer end of the rotating shaft 2, and then the cutting disc 9 is pressed from the outside by the pressing plate 22. The pressing plate 22, the cutting disc 9, and the mounting plate 21 are effectively locked by the connecting member 23 to ensure that the cutting disc 9 can rotate smoothly under the drive of the rotating shaft 2. The connecting members 23 can be provided in three, four, or five forms, and the connecting members 23 are arranged at intervals in the circumferential direction to ensure the reliability of the connection between the cutting disc 9 and the rotating shaft.

[0040] In one possible implementation, see Figures 1 to 3The telescopic drive member 6 is a cylinder with an adjustable stroke. The telescopic drive member 6 includes a main body 61 and two telescopic rods 62. The two telescopic rods 62 extend vertically through the main body 61. The upper ends of the two telescopic rods 62 are respectively provided with stroke adjustment sleeves 63. The stroke adjustment sleeves 63 are used to adjust the length of the telescopic drive member 6, facilitating the adjustment of the length of the telescopic rods 62 extending downward from the main body 61 according to the diameter of the disc cutter 9, thereby meeting the requirements of grinding disc cutters 9 of different specifications.

[0041] For some examples, see Figures 1 to 3 A pressure regulating valve 12 connected to the telescopic drive member 6 is provided on the mounting plate 11. The pressure regulating valve 12 is used to adjust the pressure of the telescopic drive member 6 to control the pressure of the inner and outer grinding discs 4 and 5 on the cutting discs 9. By using the pressure regulating valve 12 to adjust the pressure between the telescopic drive member 6 and the cutting disc 9, the problem of chipping caused by excessive pressure between the two is avoided, and the problem of insufficient pressure between the two that affects the grinding efficiency is avoided. This effectively ensures the normal grinding speed of the discs and improves the grinding efficiency.

[0042] On this basis, a hand-pull valve 13 connected to the telescopic drive member 6 is provided on the mounting plate 11. The hand-pull valve 13 is used to control the on-off of the air source of the telescopic drive member 6, so as to facilitate the operator to perform manual control when the equipment is in an abnormal state.

[0043] The above-mentioned paper cutter sharpener utilizes the rotating drive member 3 to drive the disc cutter 9 at the outer end of the rotating shaft 2 to rotate. The telescopic drive member 6 can drive the inner grinding disc 4 and the outer grinding disc 5 to move downward synchronously, and simultaneously form a grinding effect on the outer edges of the two end surfaces of the disc cutter 9, effectively improving the grinding speed. The grinding liquid in the liquid supply tank 7 is delivered to the disc cutter 9 through the liquid supply pipe and the liquid hole 42 of the inner grinding disc 4, which helps to speed up the grinding efficiency, avoid the splashing of sparks during the grinding process, and has good safety in use.

[0044] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Paper cutter sharpening machine, characterized in that, The invention comprises a frame (1), a rotating shaft (2), a rotating drive member (3), an inner grinding disc (4), an outer grinding disc (5), a telescopic drive member (6) and a liquid supply box (7); the frame (1) is provided with a mounting plate (11); the rotating drive member (3) is arranged on one side of the mounting plate (11); the rotating shaft (2) is connected to the output end of the rotating drive member (3) and is arranged to pass through the mounting plate (11) horizontally; the outer end of the rotating shaft (2) is used for mounting a disc cutter (9); the telescopic drive member ( 6) is connected to the mounting vertical plate (11) in the up-down direction, the inner grinding disc (4) and the outer grinding disc (5) are both rotatably connected to the bottom of the telescopic drive member (6), the inner grinding disc (4) is used to grind the inner end surface edge of the disc cutter (9), and the outer grinding disc (5) is used to grind the outer end surface edge of the disc cutter (9), the inner grinding disc (4) is provided with an axially penetrating liquid hole (42) for supplying grinding liquid to the disc cutter (9), and the liquid supply box (7) is connected to the liquid hole (42) through a liquid supply pipe.

2. The paper cutter sharpening machine according to claim 1, wherein: A vertical plate (64) extending downward is provided at the lower end of the telescopic driving member (6); the inner grinding disc (4) is rotatably connected to the vertical plate (64) via a first rotating shaft (41); the outer grinding disc (5) is rotatably connected to the vertical plate (64) via a second rotating shaft (51); the first rotating shaft (41) and the second rotating shaft (51) are respectively arranged to pass through the vertical plate (64).

3. The paper cutter sharpening machine according to claim 2, wherein: The first rotating shaft (41) extends obliquely downward on a side close to the inner grinding disc (4), and the second rotating shaft (51) extends obliquely upward on a side close to the inner grinding disc (4).

4. The paper cutter sharpening machine according to claim 3, wherein: A first sleeve (43) and a second sleeve (52) are provided through the vertical plate (64); a first bearing (44) for mounting the first rotating shaft (41) is provided in the first sleeve (43); and a second bearing (54) for mounting the second rotating shaft (51) is provided in the second sleeve (52).

5. The paper cutter sharpening machine according to claim 4, wherein: The inner grinding disc (4) and the outer grinding disc (5) are gradually extended from the outer periphery to the axis toward the side away from the disc cutter (9), and a grinding ring (53) is respectively provided on the end surface of the inner grinding disc (4) and the outer grinding disc (5) adjacent to the disc cutter (9), and the grinding ring (53) is arranged close to the outer peripheral edge of the inner grinding disc (4) or the outer grinding disc (5).

6. The paper cutter sharpening machine according to any one of claims 1 to 5, characterized in that: A collecting cover (8) is provided on the side of the mounting vertical plate (11) and is arranged outside and below the disc cutter (9). The collecting cover (8) is opened upward and is used to collect the polishing liquid dropped from the disc cutter (9).

7. The paper cutter sharpening machine according to claim 6, wherein: Both sides of the collecting cover (8) are provided with upwardly extending extension portions (81), and the bottom of the collecting cover (8) is also provided with a liquid drain pipe (82).

8. The paper cutter sharpening machine according to any one of claims 1 to 5, characterized in that: The outer periphery of the rotating shaft (2) is provided with a mounting plate (21), and the outer end of the rotating shaft (2) is also provided with a clamping plate (22) for cooperating with the mounting plate (21) to clamp the disc cutter (9) from both sides. The clamping plate (22) is connected to the mounting plate (21) via a connecting piece (23) provided through the disc cutter (9).

9. The paper cutter sharpening machine according to any one of claims 1 to 5, characterized in that: The telescopic driving member (6) is an adjustable stroke cylinder, comprising a main body (61) and two telescopic rods (62). The two telescopic rods (62) are respectively arranged to pass through the main body (61) in the up and down directions, and the upper ends of the two telescopic rods (62) are respectively provided with stroke adjustment sleeves (63).

10. The paper cutter sharpening machine according to claim 9, wherein: The mounting vertical plate (11) is provided with a pressure regulating valve (12) connected to the telescopic driving member (6), and the pressure regulating valve (12) is used to adjust the pressure value of the telescopic driving member (6) to control the pressing force of the inner grinding disc (4) and the outer grinding disc (5) on the disc cutter (9).

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