Paper cutter

Abstract

According to the paper cutter, the locking structure is arranged on the support, the locking nut can be fixedly connected with the disassembling piece, and therefore when the blade needs to be replaced, the locking structure is arranged at the locking position so that the driving part can be locked, then the operation part on the disassembling piece is operated through a disassembling tool, and disassembling and replacing of the blade are achieved; the safety hidden danger caused by the fact that a hammer crushes people is avoided, the hammer is prevented from smashing a tool rest and a blade, the working efficiency is improved, the tool changing time each time can be saved by 8-10 minutes, the tool changing time can be saved by 60-80 minutes by 8 times in a day on average, 360 hours are expected to be saved every year, and the working intensity of the people is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of stone paper processing, and particularly relates to a paper cutter. BACKGROUND

[0002] The back of the cutting knife holder of the paper cutter is a through hole, the blade fastening nut is a common circular fastening nut, when replacing the blade, a hexagon socket is inserted into the back of the knife holder, and the circular fastening nut is knocked with an iron hammer or other tools, it takes 10-15 minutes to replace one blade, and the iron hammer knocking not only damages the fastening nut, but also has a safety hazard. SUMMARY

[0003] Therefore, the utility model discloses the purpose of the embodiment is to provide a paper cutter.

[0004] To solve the above technical problems, the utility model discloses the embodiment adopts the following technical scheme:

[0005] A paper cutter, the paper cutter includes:

[0006] Blade;

[0007] Driving device, the blade is sleeved on the driving part of the driving device, so that the driving part drives the rotation of the blade;

[0008] Support, the first end of the driving device is connected to the driving device, the locking structure is arranged on the support, the locking structure has a locking position and an unlocking position, in the locking position, the locking structure locks the driving part, in the unlocking position, the locking structure is separated from the driving part;

[0009] Locking nut, the locking nut is sleeved on the driving part and is threadedly connected with the driving part to fix the blade on the driving part;

[0010] Dismounting piece, the dismounting piece can be fixedly connected with the locking nut, an operating part is arranged on the dismounting piece, and the operating part is used for cooperating with a dismounting tool to dismount the locking nut.

[0011] In some embodiments of the utility model, the driving device includes a stator and a rotor sleeved on the stator, the rotor constitutes the driving part, a threaded hole is arranged on the support at a position opposite to the end face of the rotor, a jackscrew is threadedly connected in the threaded hole, and the jackscrew constitutes the locking structure.

[0012] In some embodiments of the utility model, the paper cutter further includes a positioning disc sleeved on the driving part and fixedly connected with the driving part, and the blade is clamped between the positioning disc and the locking nut.

[0013] In some embodiments of this utility model, the disassembly component includes a fixing part that can be fixed to the locking nut, an operating part is disposed on the fixing part, and the operating part is provided with an internal hexagonal hole for cooperating with an internal hexagonal wrench, the axis of the internal hexagonal hole being coincident with the axis of the locking nut.

[0014] In some embodiments of this utility model, the locking nut is provided with a plurality of first mounting holes, and the fixing part is provided with second mounting holes corresponding one-to-one with the plurality of first mounting holes. The first mounting holes and the second mounting holes can be fixedly connected by fasteners.

[0015] In some embodiments of this utility model, the first mounting hole is a threaded hole, the fastener is a first stud, one end of the first stud is screwed into the first mounting hole, and the other end of the first stud passes through the second mounting hole, with the protruding part being threadedly connected to the nut.

[0016] In some embodiments of this utility model, the first mounting hole is a threaded hole, the fastener is a second stud, one end of the second stud is screwed to the first mounting hole, the other end of the second stud is provided with a threaded hole, the fixing part abuts against the other end of the second stud, and the screw passes through the second mounting hole and is screwed to the threaded hole.

[0017] In some embodiments of this utility model, a plurality of first mounting holes are evenly distributed along the circumference of the locking nut.

[0018] In some embodiments of this utility model, the fixing part is strip-shaped, and the first mounting hole is provided at both ends of the fixing part.

[0019] The beneficial effects of this utility model are as follows: The embodiments disclosed in this utility model provide a paper cutter with a locking structure on the bracket. The locking nut can fix the disassembly parts. In this way, when it is necessary to replace the blade, the locking structure is set in the locking position to lock the drive unit. Then, the operating part on the disassembly part is operated by the disassembly tool to realize the disassembly and replacement of the blade. This avoids the safety hazard of being injured by a hammer and prevents the hammer from damaging the blade holder and blade. It improves work efficiency, saves 8-10 minutes each time the blade is replaced, and saves 60-80 minutes on average with 8 blade replacements per day. It is estimated that 360 hours will be saved per year, and the workload of personnel will be reduced. Attached Figure Description

[0020] Figure 1 A schematic diagram of a paper cutter is shown.

[0021] Figure 2 Show Figure 1 Sectional view along line AA;

[0022] Figure 3 FIG. 2 shows a cross-sectional view of a cutting machine locking structure in an unlocked position according to one embodiment of the present application;

[0023] Figure 4 FIG. 3 shows a cross-sectional view of a cutting machine locking structure in a locked position according to one embodiment of the present application;

[0024] Figure 5 FIG. 4 shows a cross-sectional view of a cutting machine locking structure in a locked position according to another embodiment of the present application.

[0025] wherein:

[0026] 1, through hole; 2, round fastening nut; 10, blade; 20, driving device; 21, stator; 22, rotor; 30, bracket; 31, threaded hole; 32, jackscrew; 40, locking nut; 41, first mounting hole; 50, dismounting piece; 51, fixed part; 511, second mounting hole; 52, operating part; 60, positioning disc; 70, first stud; 80, nut; 90, second stud; 100, screw. DETAILED DESCRIPTION

[0027] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings and examples.

[0028] As shown in Figure 1 and Figure 2 , the cutting machine cutting knife holder back is a through hole 1, and the blade fastening nut is a common round fastening nut 2. When replacing the blade 10, a hexagonal socket needs to be inserted into the back of the knife holder, and the round fastening nut 2 is knocked with a hammer or other tools. Replacing one blade takes 10-15 minutes, and the hammer knocking not only damages the round fastening nut 2, but also poses a safety hazard.

[0029] Based on this, the present application provides a cutting machine, as shown in Figure 3 and Figure 4As shown, the paper cutter comprises a blade 10, a driving device 20, a support 30, a locking nut 40 and a dismounting piece 50. The blade 10 is sleeved on a driving part of the driving device 20, so that the driving part drives the blade 10 to rotate. The support 30 is connected to the driving device 20 at a first end of the driving device 20, and the support 30 is provided with a locking structure having a locking position and an unlocking position. In the locking position, the locking structure locks the driving part, and in the unlocking position, the locking structure is separated from the driving part. The locking nut 40 is sleeved on the driving part and is threadedly connected with the driving part to fix the blade 10 on the driving part. The dismounting piece 50 is fixedly connected with the locking nut 40, and the dismounting piece 50 is provided with an operating part 52 for cooperating with a dismounting tool to dismount the locking nut 40.

[0030] In the paper cutter provided by the embodiment, the locking structure is arranged on the support 30, and the locking nut 40 can be fixedly connected with the dismounting piece 50. Thus, when the blade 10 needs to be replaced, the locking structure is set in the locking position to lock the driving part, and then the operating part 52 on the dismounting piece 50 is operated by using the dismounting tool to realize the dismounting and replacement of the blade 10, thereby avoiding the safety hazard caused by hammering the personnel, avoiding the hammering damage to the blade holder and the blade 10, improving the work efficiency, saving 8-10 minutes for each time of replacing the blade, saving 60-80 minutes for 8 times of replacing the blade per day, saving 360 hours per year, and reducing the work intensity of the personnel.

[0031] In an embodiment, the driving device 20 comprises a stator 21 and a rotor 22 sleeved on the stator 21, the rotor 22 constitutes the driving part, and the driving part drives the blade 10 on it to rotate. The support 30 is provided with a threaded hole 31 at a position opposite to an end surface of the rotor 22, and a jackscrew 32 is threadedly connected in the threaded hole 31, the jackscrew 32 constitutes the locking structure. Figure 3 As shown, the jackscrew 32 is separated from the rotor 22 in the unlocking position, so that the jackscrew 32 does not affect the normal rotation of the rotor 22. Figure 4 As shown, the jackscrew 32 abuts against the rotor 22 in the locking position, so as to limit the rotation of the rotor 22, facilitating the dismounting of the locking nut 40.

[0032] In an embodiment, the paper cutter further comprises a positioning disc 60 sleeved on the driving part and fixedly connected with the driving part, and the blade 10 is clamped between the positioning disc 60 and the locking nut 40.

[0033] In an embodiment, the dismounting piece 50 comprises a fixing part 51 capable of being fixed with the lock nut 40, and an operation part 52 arranged on the fixing part 51, wherein an inner hexagonal hole for cooperating with an inner hexagonal wrench is arranged in the operation part 52, and an axis of the inner hexagonal hole coincides with an axis of the lock nut 40. In this way, when the tool needs to be replaced, the inner hexagonal hole can be inserted into the inner hexagonal hole, and then the inner hexagonal hole is rotated to drive the fixing part 51 to rotate the lock nut 40, so as to realize the dismounting of the lock nut 40, and further realize the dismounting of the blade 10.

[0034] In an embodiment, a plurality of first mounting holes 41 are arranged on the lock nut 40, and a second mounting hole 511 corresponding to each of the first mounting holes 41 is arranged on the fixing part 51, and the first mounting hole 41 and the second mounting hole 511 are fixedly connected through a fastener.

[0035] In an embodiment, as shown in Figure 4 the first mounting hole 41 is a threaded hole, the fastener is a first stud 70, one end of the first stud 70 is screwed with the first mounting hole 41, and the other end of the first stud 70 passes through the second mounting hole 511, and the passing-out part is screwed with a nut 80.

[0036] In another embodiment, as shown in Figure 5 the first mounting hole 41 is a threaded hole, the fastener is a second stud 90, one end of the second stud 90 is screwed with the first mounting hole 41, and a threaded hole is arranged on an end face of the other end of the second stud 90, the fixing part 51 abuts against the end face of the other end of the second stud 90, and a screw 100 passes through the second mounting hole 511 and is screwed with the threaded hole.

[0037] In an embodiment, the plurality of first mounting holes 41 are uniformly distributed along a circumferential direction of the lock nut 40, so as to improve the uniformity of the force applied to the lock nut 40.

[0038] In an embodiment, the fixing part 51 is in a strip shape, and the first mounting hole 41 is arranged on each of two ends of the fixing part 51.

[0039] The above embodiments are only used for describing the present application, and are not used for limiting the present application, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application, therefore all equivalent technical solutions also belong to the scope of the present application, and the patent protection scope of the present application should be defined by the claims.

Claims

1. A paper cutter characterized by, The paper cutter comprises: a blade; a driving device, the blade is sleeved on a driving part of the driving device, so that the driving part drives the blade to rotate; a support connected to the driving device at a first end of the driving device, the support is provided with a locking structure, the locking structure has a locking position and an unlocking position, in the locking position, the locking structure locks the driving part, in the unlocking position, the locking structure is separated from the driving part; a locking nut sleeved on the driving part and threadedly connected with the driving part to fix the blade on the driving part; a dismounting piece, the dismounting piece is fixedly connected with the locking nut, the dismounting piece is provided with an operating part, the operating part is used for cooperating with a dismounting tool to dismount the locking nut.

2. The paper cutter of claim 1, wherein, The driving device comprises a stator and a rotor sleeved on the stator, the rotor constitutes the driving part, the support is provided with a threaded hole opposite to an end surface of the rotor, a jackscrew is threadedly connected in the threaded hole, and the jackscrew constitutes the locking structure.

3. The paper cutter of claim 1, wherein, The paper cutter further comprises a positioning disc sleeved on the driving part and fixedly connected with the driving part, and the blade is clamped between the positioning disc and the locking nut.

4. The paper cutter of claim 1, wherein, The dismounting piece comprises a fixed part fixed with the locking nut, the operating part is arranged on the fixed part, an internal hexagonal hole for cooperating with an internal hexagonal wrench is arranged in the operating part, and an axis of the internal hexagonal hole coincides with an axis of the locking nut.

5. The paper cutter of claim 4, wherein, The locking nut is provided with a plurality of first mounting holes, the fixed part is provided with a plurality of second mounting holes corresponding to the first mounting holes one by one, and the first mounting holes and the second mounting holes are fixedly connected through fasteners.

6. The paper cutter of claim 5, wherein, The first mounting hole is a threaded hole, the fastener is a first stud, one end of the first stud is threadedly connected with the first mounting hole, and the other end of the first stud passes through the second mounting hole and is threadedly connected with a nut.

7. The paper cutter of claim 5, wherein, The first mounting hole is a threaded hole, the fastener is a second stud, one end of the second stud is threadedly connected with the first mounting hole, and an end surface of the other end of the second stud is provided with a threaded hole, the fixed part abuts against the end surface of the other end of the second stud, and a screw passes through the second mounting hole and is threadedly connected with the threaded hole.

8. The paper cutter of claim 5, wherein, The plurality of first mounting holes are uniformly distributed along a circumference of the locking nut.

9. The paper cutter of claim 5, wherein, The fixed part is in a strip shape, and the first mounting holes are arranged at both ends of the fixed part.

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