Double-crank-arm connecting rod mechanism of book trimmer

Abstract

The utility model discloses a double-crank-arm connecting rod mechanism of a book trimmer, which comprises a side cutter driving mechanism and a cutter driving mechanism, the side cutter driving mechanism and the cutter driving mechanism are meshed and connected through a gear, and the side cutter driving mechanism and the cutter driving mechanism move synchronously; the side cutter driving mechanism comprises a first gear, a second gear, a first connecting rod, a second connecting rod and a side cutter fixing shaft, a first connecting shaft is connected between the first gear and the second gear, the cutter driving mechanism comprises a third gear, a fourth gear, a third connecting rod, a fourth connecting rod and a cutter fixing frame, and a second connecting shaft is connected between the third gear and the fourth gear. The first gear is in meshed connection with the third gear, and the second gear is in meshed connection with the fourth gear. The crank arm and the connecting rod are driven by the gear to rotate, so that the side cutter fixing shaft and the cutter fixing frame move up and down, the power transmission path is simplified, the action execution is more accurate, and meanwhile, the working efficiency of the book trimmer is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a double-crank connecting rod mechanism of book cutting machine. BACKGROUND

[0002] The book cutting machine is mainly used for cutting books to make the end face of the book neat and the size of the book uniform. When cutting books, the book cutting machine generally completes the cutting operation of three faces of the book, and the cutting and side cutting knives complete the cutting operation of the edge part of the book from top to bottom. The working of the side cutting knife and the cutting knife of the existing book cutting machine is completed through a plurality of gears and a plurality of crank connecting rod mechanisms, and the transmission path is long, which limits the improvement of the working efficiency, and long-time use easily causes wear between components, resulting in a decrease in the precision of the cutting and side cutting knives. At the same time, the setting of the multi-structure transmission increases the overall weight of the book cutting machine and increases the production and use cost. Therefore, a new double-crank connecting rod mechanism of book cutting machine needs to be developed. SUMMARY

[0003] The utility model solves the technical problem to provide a double-crank connecting rod mechanism of book cutting machine which has simple structure, is convenient to adjust, has smooth transmission, short transmission path, high action execution efficiency, and can improve the working efficiency of the book cutting machine, and has practicality and wide applicability.

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

[0005] A double-crank connecting rod mechanism of book cutting machine, comprising a side cutting knife driving mechanism and a cutting knife driving mechanism, the side cutting knife driving mechanism and the cutting knife driving mechanism are connected through gear meshing, and the side cutting knife driving mechanism and the cutting knife driving mechanism move synchronously.

[0006] The side cutting knife driving mechanism comprises a gear one, a gear two, a connecting rod one, a connecting rod two and a side cutting knife fixing shaft, a connecting shaft one is connected between the gear one and the gear two, a crank one is installed on the gear one, a crank two is installed on the gear two, the connecting rod one connects the crank one and the side cutting knife fixing shaft, and the connecting rod two connects the crank two and the side cutting knife fixing shaft.

[0007] The cutting knife driving mechanism comprises a gear three, a gear four, a connecting rod three, a connecting rod four and a cutting knife fixing frame, a connecting shaft two is connected between the gear three and the gear four, a crank three is installed on the gear three, a crank four is installed on the gear four, the connecting rod three connects the crank three and the cutting knife fixing frame, and the connecting rod four connects the crank four and the cutting knife fixing frame.

[0008] The gear one is meshed with the gear three, and the gear two is meshed with the gear four.

[0009] Preferably, both ends of the connecting shaft one and the connecting shaft two are provided with gear mounting seats, and the gear one, the gear two, the gear three and the gear four are mounted on the gear mounting seats.

[0010] Preferably, the upper connecting pieces are connected between the side cutter fixing shaft, the side cutter fixing frame, the connecting rod one, the connecting rod two, the connecting rod three and the connecting rod four.

[0011] The lower connecting pieces are connected between the connecting rod one, the connecting rod two, the connecting rod three, the connecting rod four and the side cutter fixing shaft, the side cutter fixing frame, the crank arm one, the crank arm two, the crank arm three and the crank arm four.

[0012] Preferably, the connecting rod one, the connecting rod two, the connecting rod three and the connecting rod four are threadedly connected with the upper connecting piece and the lower connecting piece.

[0013] Preferably, the gear one and the gear two are of the same size, and the gear three and the gear four are of the same size.

[0014] The side cutter driving mechanism and the cutter driving mechanism are designed, the gear one, the gear two, the gear three, the gear four, the connecting rod one, the connecting rod two, the connecting rod three, the connecting rod four, the connecting shaft one and the connecting shaft two are used, the meshing connection between the gears is achieved, the side cutter fixing shaft and the cutter fixing frame are quickly and synchronously operated through the action of the crank arm one, the crank arm two, the crank arm three, the crank arm four, the side cutter fixing shaft and the cutter fixing frame, the transmission path is simplified, the transmission is smoother, the working efficiency is improved, the weight of the book cutting machine is indirectly reduced, and the material cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, but it is not a limitation on the protection scope of the present application.

[0016] Fig. 1 It is a structural schematic view of the present application;

[0017] Fig. 2 It is a structural schematic view of the present application.

[0018] 1. Gear one, 2. Gear two, 3. Gear three, 4. Gear four, 5. Connecting shaft one, 6. Connecting shaft two, 7. Crank arm one, 8. Connecting rod one, 9. Connecting rod two, 10. Side cutter fixing shaft, 11. Crank arm two, 12. Connecting rod three, 13. Crank arm three, 14. Connecting rod four, 15. Cutter fixing frame, 16. Crank arm four, 17. Cutter, 18. Gear mounting seat, 19. Lower connecting piece, 20. Upper connecting piece. DETAILED DESCRIPTION

[0019] Referring to Figs. 1-2 The double-crank connecting rod mechanism of the book cutting machine comprises a side cutter driving mechanism and a cutter driving mechanism, the side cutter driving mechanism and the cutter driving mechanism are connected through gear engagement, and the side cutter driving mechanism and the cutter driving mechanism move synchronously.

[0020] Further, the side cutter driving mechanism comprises gear one 1, gear two 2, connecting rod one 8, connecting rod two 9 and side cutter fixing shaft 10, connecting shaft one 5 is connected between the gear one 1 and the gear two 2, crank one 7 is installed on the gear one 1, crank two 11 is installed on the gear two 2, connecting rod one 8 connects the crank one 7 and the side cutter fixing shaft 10, and connecting rod two 9 connects the crank two 11 and the side cutter fixing shaft 10.

[0021] Further, the cutter driving mechanism comprises gear three 3, gear four 4, connecting rod three 12, connecting rod four 14 and cutter fixing frame 15, connecting shaft two 6 is connected between the gear three 3 and the gear four 4, crank three 13 is installed on the gear three 3, crank four 16 is installed on the gear four 4, connecting rod three 12 connects the crank three 13 and the cutter fixing frame 15, and connecting rod four 14 connects the crank four 16 and the cutter fixing frame 15.

[0022] Further, the gear one 1 and the gear three 3 are connected in engagement, and the gear two 2 and the gear four 4 are connected in engagement.

[0023] Further, both ends of the connecting shaft one 5 and the connecting shaft two 6 are provided with gear mounting seats 18, and the gear one, the gear two, the gear three and the gear four are all installed on the gear mounting seats.

[0024] Further, the connecting rod one 8, the connecting rod two 9, the connecting rod three 12 and the connecting rod four 14 are all connected with the upper connecting piece 20 between the side cutter fixing shaft 10 and the cutter fixing frame 15, and the upper connecting piece 20 is movably connected with the side cutter fixing shaft 10 and the cutter fixing frame 15.

[0025] Further, the connecting rod one 8, the connecting rod two 9, the connecting rod three 12 and the connecting rod four 14 are all connected with the upper connecting piece 20 between the side cutter fixing shaft 10 and the cutter fixing frame 15, and the upper connecting piece 20 is movably connected with the side cutter fixing shaft 10 and the cutter fixing frame 15.

[0026] Further, the connecting rod one 8, the connecting rod two 9, the connecting rod three 12 and the connecting rod four 14 are all connected with the upper connecting piece 20 and the lower connecting piece 18 in a threaded manner, so that the height of the side cutter fixing shaft and the cutter fixing frame can be adjusted conveniently.

[0027] Further, the gear one 1 and the gear two 2, the gear three 3 and the gear four 4 are the same size, which ensures the synchronization of the transmission on both sides.

[0028] Further, the cutter fixing frame is provided with a cutter 17.

[0029] Further, the side cutter fixing shaft is provided with a side cutter (not shown).

[0030] Further, the gear one, the gear two, the gear three and the gear four are linked through the connecting shaft one and the connecting shaft two.

[0031] The side cutter fixing shaft and the cutter fixing frame move up and down, and the moving direction is controlled through the limiting or guiding mechanism on the book cutting machine.

[0032] The connecting shaft one and the connecting shaft two are provided with bearings between the connecting shaft one and the connecting shaft two and the book cutting machine body.

[0033] The connecting rod one 8, the connecting rod two 9, the connecting rod three 12 and the connecting rod four 14 not only play a transmission role, but also play a supporting role on the cutter fixing frame and the side cutter fixing shaft.

[0034] When the utility model is used, the position of the driving motor is set, so that the output end of the driving motor is connected with any one of the gear one, the gear two, the gear three and the gear four, one of the gears is rotated through the motor, all the gears are synchronously rotated under the action of the connecting shaft one and the connecting shaft two, the gear one, the gear two, the gear three and the gear four are rotated at the same time, the connecting rod one, the connecting rod two, the connecting rod three and the connecting rod four are moved under the action of the crank arm one, the crank arm two, the crank arm three and the crank arm four, the cutter fixing frame and the side cutter fixing shaft are moved up and down under the action of the connecting rod one, the connecting rod two, the connecting rod three and the connecting rod four, so that the book cutting operation is completed under the action of the cutter and the side cutter. Its structure is simple, convenient to adjust, smooth transmission, short transmission path, high action execution efficiency, can speed up the working efficiency of the book cutting machine, and has practicality and wide use.

[0035] The above is only a specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any change or replacement without creative labor should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be limited to the protection scope defined in the claims.

Claims

1. A double-crank link mechanism for a book cutter, comprising: The side knife driving mechanism and the cutter driving mechanism are connected through gear engagement, and the side knife driving mechanism and the cutter driving mechanism move synchronously. The side knife driving mechanism comprises gear one, gear two, connecting rod one, connecting rod two and side knife fixing shaft, connecting shaft one is connected between the gear one and the gear two, the crank one is installed on the gear one, the crank two is installed on the gear two, the connecting rod one connects the crank one and the side knife fixing shaft, and the connecting rod two connects the crank two and the side knife fixing shaft. The cutter driving mechanism comprises gear three, gear four, connecting rod three, connecting rod four and cutter fixing frame, connecting shaft two is connected between the gear three and the gear four, the crank three is installed on the gear three, the crank four is installed on the gear four, the connecting rod three connects the crank three and the cutter fixing frame, and the connecting rod four connects the crank four and the cutter fixing frame. The gear one is engaged with the gear three, and the gear two is engaged with the gear four.

2. A double crank link mechanism for a book cutter according to claim 1, wherein: Both ends of the connecting shaft one and the connecting shaft two are provided with gear mounting seats, and the gear one, the gear two, the gear three and the gear four are installed on the gear mounting seats.

3. A double crank link mechanism for a book cutter according to claim 1, wherein: The connecting rod one, the connecting rod two, the connecting rod three and the connecting rod four are all connected with the upper connecting piece between the side knife fixing shaft, the cutter fixing frame, the crank one, the crank two, the crank three and the crank four, and the upper connecting piece is movably connected with the side knife fixing shaft and the cutter fixing frame. The connecting rod one, the connecting rod two, the connecting rod three and the connecting rod four are all connected with the lower connecting piece between the crank one, the crank two, the crank three and the crank four, and the lower connecting piece is movably connected with the crank one, the crank two, the crank three and the crank four.

4. A double crank linkage mechanism for a book cutter according to claim 3, wherein: The connecting rod one, the connecting rod two, the connecting rod three and the connecting rod four are all screw-connected with the upper connecting piece and the lower connecting piece.

5. A double-crank link mechanism for a book cutter according to claim 1, wherein: The gear one and the gear two are the same in size, and the gear three and the gear four are the same in size.

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