CN221210928U

CN221210928U - Knife sharpening device for paper cutting machine

Info

Publication number: CN221210928U
Application number: CN202323147097.2U
Authority: CN
Inventors: 杨良兵
Original assignee: Zhijiang Zhengxin Packaging Co ltd
Current assignee: Zhijiang Zhengxin Packaging Co ltd
Priority date: 2023-11-20
Filing date: 2023-11-20
Publication date: 2024-06-25
Anticipated expiration: 2033-11-20

Abstract

The utility model provides a knife sharpening device for a paper cutter, which comprises a machine base, wherein a frame is fixed at the top of the machine base, a knife rest is arranged on the inner side of the machine base, a cutter is fixed at the bottom of the knife rest, a hydraulic cylinder for driving the knife rest to lift is fixed on the machine base, two lifting plates which are bilaterally symmetrical are arranged on one surface of the machine base, a movable frame is arranged between the two lifting plates, an electric telescopic rod is fixed on the movable frame, and a knife sharpening stone contacted with the cutting edge of the cutter is detachably connected at the telescopic end of the electric telescopic rod; a driving assembly is arranged between the two lifting plates and comprises a screw rod which is rotationally connected between the two lifting plates, a motor for driving the screw rod is fixed on one lifting plate, and a connecting block which is fixed with the movable frame is connected to the screw rod in a threaded manner. The utility model can effectively polish the cutting edge without the need of a worker to disassemble the cutter, thereby improving the polishing efficiency of the cutting edge and reducing the labor burden of the worker.

Description

Knife sharpening device for paper cutting machine

Technical Field

The utility model relates to the technical field of knife sharpening devices, in particular to a knife sharpening device for a paper cutter.

Background

The paper cutter is used for processing the paper cutting requirement in the later printing stage, and the paper cutter can process the paper to be cut into the required specification; the paper cutter has wide application range and can be used for cutting paper, leather, plastic, paper board and other materials; the paper cutting machine is needed to cut during the production from opening to printing of finished products and the cutting of Mao Ben after binding of books, packaging, books and periodicals and the like, so the paper cutting machine is an important device for post-printing processing; however, after the existing paper cutting machine is used for a long time, the sharpness of the cutting edge of the cutting knife on the paper cutting machine can be greatly reduced, a worker is required to detach the cutting knife for sharpening, time and labor are wasted, and the labor burden of the worker is increased.

Disclosure of utility model

The utility model discloses a knife sharpening device for a paper cutter, which solves the problems that after the sharpness of the cutting edge of a cutter is reduced, a worker is required to disassemble the cutter for sharpening, time and labor are wasted, and the labor burden of the worker is increased.

In order to solve the technical problems, the utility model adopts the following technical scheme:

The knife sharpening device for the paper cutter comprises a machine base, wherein a frame is fixed at the top of the machine base, a knife rest is arranged on the inner side of the machine base, a cutter is fixed at the bottom of the knife rest, a hydraulic cylinder for driving the knife rest to lift is fixed on the machine base, two lifting plates which are bilaterally symmetrical are arranged on one surface of the machine base, a movable frame is arranged between the two lifting plates, an electric telescopic rod is fixed on the movable frame, and a knife sharpening stone contacted with the cutting edge of the cutter is detachably connected with the telescopic end of the electric telescopic rod; a driving assembly is arranged between the two lifting plates and comprises a screw rod which is rotationally connected between the two lifting plates, a motor for driving the screw rod is fixed on one lifting plate, and a connecting block which is fixed with the movable frame is connected to the screw rod in a threaded manner.

Compared with the prior art, the utility model has the following beneficial effects:

When the cutter blade is required to be polished, the knife stone is contacted with the cutter blade, then the motor is started to rotate the screw rod, the connecting block can drive the movable frame to move transversely, and the knife stone can polish the cutter blade along with the transverse movement, so that a worker does not need to take down the cutter from the cutter frame; when the cutter blade is not required to be polished, the electric telescopic rod is started, so that the telescopic end of the electric telescopic rod is contracted, the knife stone is driven to move, the knife stone is far away from the cutter blade, and the normal use of the cutter is prevented from being influenced by the knife stone; the utility model can effectively polish the cutting edge without the need of a worker to disassemble the cutter, thereby improving the polishing efficiency of the cutting edge and reducing the labor burden of the worker.

Drawings

FIG. 1 is a schematic diagram of a first embodiment of a driving assembly according to the present utility model;

FIG. 2 is a schematic side view of a mobile frame according to the present utility model;

fig. 3 is a schematic structural view of a driving assembly according to a second embodiment of the present utility model.

In the figure: 1. a base; 2. a frame; 21. a tool holder; 22. a cutter; 23. a hydraulic cylinder; 24. a rod; 25. a sponge block; 3. a lifting plate; 4. a moving rack; 41. an electric telescopic rod; 42. a connecting plate; 43. a fixing plate; 44. a knife stone; 45. a storage battery; 5. a carrying plate; 51. a second automatic telescopic rod; 6. a bearing block; 7. a reinforcing plate; 8. a screw rod; 81. a motor; 82. a connecting block; 9. an automatic telescopic rod.

Detailed Description

The details of the present utility model are described below in conjunction with the accompanying drawings and examples.

As shown in fig. 1 and 2, the utility model provides a knife sharpening device for a paper cutter, which comprises a machine base 1, wherein a frame 2 is fixed at the top of the machine base 1, a knife rest 21 is arranged at the inner side of the frame 2, a cutter 22 is fixed at the bottom of the knife rest 21, a hydraulic cylinder 23 for driving the knife rest 21 to lift is fixed on the frame 2, two lifting plates 3 which are symmetrical left and right are arranged on one surface of the frame 2, a movable frame 4 is arranged between the two lifting plates 3, an electric telescopic rod 41 is fixed on the movable frame 4, and a knife sharpening stone 44 which is contacted with the cutting edge of the cutter 22 is detachably connected at the telescopic end of the electric telescopic rod 41; a driving component is arranged between the two lifting plates 3, the driving component comprises a screw rod 8 which is rotationally connected between the two lifting plates 3, a motor 81 for driving the screw rod 8 is fixed on one lifting plate 3, and a connecting block 82 which is fixedly connected with the movable frame 4 is connected on the screw rod 8 in a threaded manner. In the first embodiment, when the edge of the cutter 22 needs to be polished, the motor 81 can be started, the rotating shaft of the motor 81 is fixed with one end of the screw rod 8, and the motor 81 adopts a servo motor; after the motor 81 is started to rotate the screw rod 8, the connecting block 82 can drive the movable frame 4 to move, and the electric telescopic rod 41 can drive the whetstone 44 to move transversely so as to polish the edge of the cutter 22; when the edge of the cutter 22 is not required to be polished, the electric telescopic rod 41 is started, the telescopic end of the electric telescopic rod 41 is contracted, and the knife stone 44 is driven to be far away from the cutter 22.

As shown in fig. 3, the driving assembly further includes two first automatic telescopic rods 9, the two first automatic telescopic rods 9 are respectively fixed on the two lifting plates 3, and the telescopic ends of the two first automatic telescopic rods 9 are respectively fixed with the movable frame 4; the two automatic telescopic rods 9 are three-section telescopic rods, and the telescopic ends of the two automatic telescopic rods 9 respectively drive the two movable frames 4 to move towards the same direction. In the second embodiment, when the blade of the cutter 22 needs to be polished, two first automatic telescopic rods 9 can be started, the telescopic end of one first automatic telescopic rod 9 is contracted, the telescopic end of the other first automatic telescopic rod 9 is extended, so that the two movable frames 4 move towards the same direction, and the two knife stones 44 move towards the same direction along with the movement of the two knife stones, so that the blade of the cutter 22 is polished; the two knife stones 44 move simultaneously to polish the cutting edge of the cutter 22, so that the polishing efficiency of the cutting edge of the cutter 22 can be improved; and the lateral movement distance of the whetstone 44 can exceed the center point of the cutter 22 so that both whetstones 44 can polish the edge of the cutter 22 comprehensively.

As shown in fig. 2, a connecting plate 42 is fixed at the telescopic end of the electric telescopic rod 41, a fixing plate 43 is fixed on one surface of the connecting plate 42 away from the electric telescopic rod 41 through bolts, and one surface of the whetstone 44 away from the cutter 22 is fixed with the fixing plate 43; a battery 45 for supplying power to the electric telescopic rod 41 is fixed in the movable frame 4. The connecting plate 42 is fixed with the fixing plate 43 through bolts, so that the installation of the whetstone 44 can be completed, and the whetstone 44 can be replaced conveniently later; the battery 45 can supply power to the electric telescopic rod 41, so that the electric telescopic rod 41 can normally operate.

As shown in fig. 1 and fig. 3, two bearing plates 5 are fixed on the frame 2, the two bearing plates 5 respectively correspond to the two lifting plates 3, and a second automatic telescopic rod 51 with a telescopic end connected with the top of the lifting plate 3 is fixed on the bearing plate 5. After the second automatic telescopic rods 51 are started, the telescopic ends of the second automatic telescopic rods 51 can respectively drive the two lifting plates 3 to move upwards so as to enable the movable frame 4 to move to the upper side of the cutter 22, and the movable frame 4 is prevented from shielding the cutter 22, so that a worker can observe the cutter 22 more comprehensively, and the worker can cut paper conveniently; when the knife stone 44 is needed, the second automatic telescopic rod 51 is started, so that the telescopic end of the second automatic telescopic rod 51 moves downwards, and the knife stone 44 corresponds to the cutting edge of the cutter 22; the lifting plate 3 is slidably connected with the frame 2, so that the lifting plate 3 can slide upwards or downwards after the second automatic telescopic rod 51 is started.

As shown in fig. 1 and 3, two bearing blocks 6 are fixed on the frame 2, and the tops of the two bearing blocks 6 are respectively contacted with the bottoms of the two lifting plates 3. The bearing block 6 can play a role in bearing and positioning the lifting plate 3, so that the stability of the lifting plate 3 is improved, and meanwhile, when the cutter 22 needs to polish, the lifting plate 3 can be moved to a designated position.

As shown in fig. 3, the lifting plate 3 is fixed with a reinforcing plate 7 with the top contacting with the fixed end of the first automatic telescopic rod 9. The reinforcing plate 7 can increase the stability of the first automatic telescopic rod 9 fixed on the lifting plate 3; also, when the whetstone 44 is driven to move by the motor 81, the reinforcing plate 7 is in contact with the bottom of the body of the motor 81 so as to increase the stability of the motor 81 (as shown in fig. 1).

As shown in fig. 1 and 3, a sponge block 25 is disposed on one surface of the frame 2 and above the tool rest 21, the length of the sponge block 25 is the same as the length of the inner side of the frame 2, and two inserting rods 24 respectively penetrating through the sponge block 25 are fixed on the frame 2. When needs are polished to cutter 22, can be with sponge piece 25 and inserted bar 24 separation back, place sponge piece 25 on frame 1, make sponge piece 25 be located the inboard of frame 2, then the staff is sprayed water on to cutter 22 to when the sharpening stone 44 polishes the cutting edge of cutter 22, play lubrication and cooling's effect, sponge piece 25 then can adsorb the water that drips on the cutter 22, has made things convenient for the staff to clear up the top of frame 1.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.

Claims

1. The utility model provides a knife sharpening device for paper cutter, includes frame (1), and the top of frame (1) is fixed with frame (2), and the inboard of frame (2) is equipped with knife rest (21), and the bottom of knife rest (21) is fixed with cutter (22), is fixed with pneumatic cylinder (23) that are used for driving knife rest (21) to go up and down on frame (2), its characterized in that: two lifting plates (3) which are bilaterally symmetrical are arranged on one surface of the frame (2), a movable frame (4) is arranged between the two lifting plates (3), an electric telescopic rod (41) is fixed on the movable frame (4), and a knife stone (44) which is contacted with the cutting edge of the cutter (22) is detachably connected with the telescopic end of the electric telescopic rod (41); a driving assembly is arranged between the two lifting plates (3), the driving assembly comprises a screw rod (8) which is rotationally connected between the two lifting plates (3), a motor (81) for driving the screw rod (8) is fixed on one lifting plate (3), and a connecting block (82) which is fixedly connected with the movable frame (4) is connected to the screw rod (8) in a threaded manner.

2. The knife sharpening device for a paper cutter according to claim 1, wherein: the driving assembly further comprises two first automatic telescopic rods (9), the two first automatic telescopic rods (9) are respectively fixed on the two lifting plates (3), and the telescopic ends of the two first automatic telescopic rods (9) are respectively fixed with a movable frame (4); the two automatic telescopic rods are three-section telescopic rods, and the telescopic ends of the two automatic telescopic rods respectively drive the two movable frames to move in the same direction.

3. The knife sharpening device for a paper cutter according to claim 1, wherein: a connecting plate (42) is fixed at the telescopic end of the electric telescopic rod (41), a fixing plate (43) is fixed on one surface of the connecting plate (42) away from the electric telescopic rod (41) through a bolt, and one surface of the knife stone (44) away from the cutter (22) is fixed with the fixing plate (43); a storage battery (45) for supplying power to the electric telescopic rod (41) is fixed in the movable frame (4).

4. The knife sharpening device for a paper cutter according to claim 1, wherein: two bearing plates (5) are fixed on the frame (2), the two bearing plates (5) are respectively corresponding to the two lifting plates (3), and a second automatic telescopic rod (51) with a telescopic end connected with the top of the lifting plate (3) is fixed on the bearing plate (5).

5. The knife sharpening device for a paper cutter according to claim 1, wherein: two bearing blocks (6) are fixed on the frame (2), and the tops of the two bearing blocks (6) are respectively contacted with the bottoms of the two lifting plates (3).

6. The knife sharpening device for paper cutting machine according to claim 2, wherein: the lifting plate (3) is fixedly provided with a reinforcing plate (7) with the top contacted with the fixed end of the first automatic telescopic rod (9).

7. The knife sharpening device for a paper cutter according to claim 1, wherein: one side of the frame (2) is provided with a sponge block (25) positioned above the tool rest (21), the length of the sponge block (25) is the same as the length of the inner side of the frame (2), and two inserted bars (24) respectively penetrating through the sponge block (25) are fixed on the frame (2).