JP3048251U - Hydraulic paper cutting machine - Google Patents

Abstract

(57) [Problem] To provide a hydraulic paper cutting machine capable of avoiding paper contamination even if a hydraulic can has a failure. SOLUTION: By fixing a hydraulic can 4 below a machine main body 2, that is, below a paper bundle 6, even if there is an oil leak in the hydraulic can 4, it is possible to prevent the leaked oil from contaminating the paper. it can. On the other hand, if a brake shoe is installed on the interlocking device 5 and the hydraulic can 4 breaks down and the operation of the interlocking device 5 becomes ineffective, continuous operation can be regulated by the brake shoe. In addition, the blade holder 3 does not fall off due to the regulation, avoiding danger and enabling safe operation.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a hydraulic paper cutting machine.

[0002]

[Prior art]

 As shown in FIG. 1, a generally used hydraulic paper cutting machine has a blade holder 11 attached to a machine body 13 by an upper chain rod 12, and a hydraulic can 14 above the machine body 13. Will be installed. When the operating rod 141 of the hydraulic can 14 is actuated, the blade holder 11 is controlled and moved along a fixed trajectory to cut the paper. This mechanism has been used successfully for paper cutting.

[0003]

[Problems to be solved by the invention]

 However, the above-mentioned conventional hydraulic paper cutting machine has room for reconsideration from the viewpoint of safety or economy. One of the reasons is that the hydraulic can 14 mounted on the uncut paper on the machine main body deteriorates after a certain period of use, and there is always a phenomenon of oil leakage on the surface. Leaked oil contaminates the paper, wasting the paper and increasing costs. Secondly, when the aging hydraulic can 14 stops or breaks during operation, the blade holder 11 may fall without warning, and thus a lack of safety is observed. Therefore, it is today's goal to pursue the ideals, practices and advances in safety and economy.

[0004] Accordingly, a main object of the present invention is to provide a hydraulic paper cutting machine which does not contaminate the paper even if the hydraulic can fails once, thereby avoiding waste and cost increase. Another object of the present invention is to provide a hydraulic paper cutting machine which can prevent a blade holder from falling down when a failure occurs in a hydraulic can and can ensure a safe operation.

[0005]

According to a first aspect of the present invention, there is provided a hydraulic paper cutting machine, comprising: a machine body; a cutting tool provided at an appropriate upper position; A tool holder attached to the machine body, a hydraulic can attached to the machine body, and an interlocking device, one end of which is connected to the live-in / out rod of the hydraulic can and another end attached to the tool holder.

[0006] The hydraulic can is fixed below the machine body, that is, below the paper bundle. The closing rod has a set of gears, and the interlock is assembled from a drive gear, shaft, interlock gear, a set of cams, and a bending lever. The drive gear is attached to the machine body and engages with the gear on the live bar. Both ends of the shaft contact the machine body separately, the interlocking gear is fixed to the shaft, and the drive gear meshes with the teeth. The cam is also attached to the shaft and is on the interlocking gear side, and the distance between the pair of cams is constant. The bending lever is attached to the appropriate position of the cam with a pin at one end, and the other end is attached to the tool holder. Therefore, the blade holder is moved up and down through the drive gear, the shaft, the interlocking gear, the cam and the bending lever by the reciprocating operation of the hydraulic can of the hydraulic can, and the paper cutting operation is continuously performed.

Further, according to the hydraulic paper cutting machine of the second aspect of the present invention, even if the hydraulic can breaks down, the machine is automatically controlled by mounting the brake shoe so that the blade holder does not fall. And safe operation can be ensured.

[0008]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. First, as shown in FIGS. 2, 3 and 4, the hydraulic paper cutting machine of this embodiment is assembled from a machine main body 2, a blade holder 3, a hydraulic can 4, and an interlocking device 5. The cutting tool 31 is installed at an appropriate position on the cutting tool holder 3 and is fixed to the machine body 2 with the chain rod 32.

The hydraulic can 4 is attached and fixed below the machine body 2. That is, it is under the bundle of paper to be cut. A set of horizontal control gears 42 is provided on the life bar 41 of the hydraulic can 4. One end of the interlocking device 5 is connected to the live-in bar 41 of the hydraulic can 4, and the other end is attached to the blade holder 3. The interlocking device 5 combines a drive gear 51, a shaft 52, an interlocking gear 53, a set of cams 54, and a bending lever 55. The drive gear 51 is meshed with the gear 42 of the live rod 41 in the machine main body 2, and both ends of the shaft 52 are separately attached to the machine main body 2. The interlocking gear 53 is on the shaft 52 and meshes the teeth of the interlocking gear 53 with the teeth of the drive gear 51. A pair of cams 54 is also attached to the shaft 52 and is provided on one side of the driving gear 53. The interval between the pair of cams 54 is assumed to be a fixed distance. One end of the bending lever 55 is attached to an appropriate portion of the cam 54 with a pin 551, and the other end is attached to the blade holder 3 with a pin 552.

As shown in each figure, in order to cut the paper, the paper bundle 6 is placed at a predetermined position of the hydraulic cutting machine, a power is input, and the gear is moved by the reciprocating operation of the life-and-stop rod 41 of the hydraulic can 4. When meshed, the drive gear 51 makes a reciprocating swing motion for a predetermined distance, and the driven gear 53 and the shaft 52 meshed with the drive gear 51 make a reciprocating swing motion for a fixed distance. Subsequently, the cam 54 in the shaft 52 also moves in a similar manner, and reciprocates a fixed distance. The bending lever 55 also operates, so that the blade holder 3 reciprocates up and down, and the blade 31 cuts the sheet bundle 6 as predetermined.

In order to ensure safety in the operation work, as shown in FIG. 2, a horizontal control gear 42 of an occluding and closing bar 41 associated with a horizontal design of a hydraulic can 4 of a lower type is reciprocated in a horizontal straight line. The driving gear 51 is controlled by the horizontal control gear 42, and the operating range of the passive driving gear 51 is limited. However, the interlocking gear 53 is driven by the shaft power in this delicate angular range, the eccentricity is set to the bending lever 55 from the cam 54, and the blade holder 3 is moved up and down to cut the paper. The advantage is that the displacement of the horizontal control gear 42 is small even if the hydraulic can 4 has errors due to leakage and failure. The effectiveness of the horizontal control gear 42 is only power-borne and has little effect on the actual blade holder.

Further, as shown in FIG. 2, when the horizontal control gear 42 is extended to the limit by the bending lever 55 and stopped, the other gears are also in a stopped state, and the bending lever 55 above is stopped regardless of the direction. As a result, the blade holder 3 is prevented from falling. Therefore, scandals caused by oil leakage from the hydraulic can can be avoided. As shown in FIGS. 3 and 4, a brake shoe 541 is fixed between a pair of cams 54 in order to ensure absolute safety in operation. Therefore, when the cam 54 and the interlocking gear 53 are simultaneously operated and a severe accident occurs in the hydraulic can 4 once, and the horizontal control gear 42 loses the operation effect, an excessive angular displacement is generated in the interlocking gear 53 as the partner gear. is there. However, as shown by the dotted line in FIG. 3, the bending lever 55 connected to the cam 54 still moves the cam 54 in the opposite direction. As a result, the cam 54 rotates from the relative surface and is hooked on the brake shoe 541 fixed at the same time, and the brake shoe 541 is bonded to the bending lever 55, and the bending lever 55 is connected to the blade holder 3 to form a three-pointed top. Apply force and hold the blade holder 3 upwards firmly to prevent dropping and ensure absolute safety in operation.

As described above, since the drive hydraulic can is installed at an appropriate location below the paper bundle on the machine body, in the event of oil leakage from the hydraulic can or accident, contamination of the paper bundle is avoided, and waste and cost are reduced. Can be prevented. In addition, the present invention attaches the brake shoe to the machine body and prevents the blade holder from falling due to the failure of the hydraulic can.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a conventional hydraulic paper cutting machine.

FIG. 2 is a sectional view showing the hydraulic paper cutting machine according to the embodiment of the present invention.

FIG. 3 is a front view showing the interlocking device according to the embodiment of the present invention;

FIG. 4 is a side view showing the interlocking device according to the embodiment of the present invention;

[Explanation of symbols]

 2 Machine Body 3 Blade Holder 31 Blade 32 Chain Rod 4 Hydraulic Can 41 Activating Bar 42 Horizontal Control Gear 5 Interlocking Device 51 Drive Gear 52 Shaft 53 Interlocking Gear 54 Cam 55 Bending Lever 551, 552 Pin 6 Paper Bundle

Claims (2)

[Utility model registration claims] 1. A machine body, a blade holder having a cutter and attached to the machine body by a set of chain rods, and attached below the machine body, that is, below a paper bundle.
A hydraulic can having a life bar with a set of gears, one end connected to the life bar of the hydraulic can, another end attached to the blade holder, a drive gear, a shaft, an interlocking gear, a set of cams and An interlocking device having a bending lever, wherein the drive gear is attached to the machine main body and engages with the gear of the live-in / close-out rod, and both ends of the shaft separately contact the machine main body, and the interlocking gear is fixed to the shaft. The drive gear is engaged with the teeth, the cam is attached to the shaft on the side of the interlocking gear, the interval between the pair of cams is a fixed distance, and one end of the bending lever is a pin and the cam is The other end is attached to the blade holder, and the drive gear, the shaft, the interlocking gear, the cam,
And a cutter for cutting the paper continuously by operating the blade holder up and down through the bending lever. 2. A brake shoe is provided between a pair of the cams, and when the hydraulic can loses its effectiveness, the bending lever immediately catches on the brake shoe to completely prevent the blade holder from dropping. 2. The hydraulic paper cutting machine according to claim 1, wherein the hydraulic paper cutting machine is capable of ensuring absolute safety in operation.