JPH0141587Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial field of application This invention uses a cutting blade to cut roll-shaped damaged paper or roll-shaped unrolled paper (hereinafter referred to as roll paper) placed horizontally along its core. The present invention relates to a roll paper cutting machine that cuts paper using a machine.

Prior art and its problems Conventional roll paper cutting machines of this type cut the roll paper only by the downward movement of a cutting blade that is provided to move parallel to the core of the roll paper. Since the cutting process is hot, it not only puts an excessive load on the cutting process, has poor cutting performance, and requires more cutting time, but also requires a large cutting force, so the overall size of the device must be increased. It had drawbacks.

Purpose of the invention This invention is capable of efficiently cutting the above-mentioned roll paper in a short time and with a small cutting force using a combined movement of the cutting blade parallel to the roll paper core and reciprocating motion in the lateral direction to the roll paper. To provide an economical roll paper cutting machine.

Structure of the invention The present invention has a structure in which a cutting blade is horizontally mounted so as to be movable up and down parallel to the core of the roll paper, which is fixed in the lateral direction, and the cutting blade is given reciprocating motion in the lateral direction of the roll paper. The roll paper is cut by a combined movement of the descending parallel movement of the cutting blade and the reciprocating movement, and the cutting blade can be moved up and down as a swinging mechanism that gives horizontal reciprocating movement to the cutting blade. A motor is attached to the vertically movable beam carried by the motor, and the rotational drive of the motor is transmitted to the holder of the cutting blade through an eccentric cam member provided on the motor rotation shaft and a bearing member provided on the circumferential surface of the cam member. By reciprocating the holder in the lateral direction along the vertically moving beam, the cutting blade is moved laterally in the same direction, thereby smoothly and rationally achieving the compound movement of the lateral movement and the vertical movement. The present invention relates to a roll paper cutting machine that cuts roll paper appropriately.

Embodiment of the invention The drawing shows an embodiment of the invention, in which reference numeral 1 denotes a cutting roll paper platform, and on both sides of the roll paper mounting platform 1 there are a horizontal member 2a and vertical members 2b, 2.
c and the same vertical member 2b of the frame 2 constructed in a mold,
The lower end of 2c is fixed. A rotating shaft 3 rotated by a motor M1 is horizontally mounted on the upper ends of the vertical members 2b and 2c of the frame 2 in parallel with the horizontal member 2a.
Bevel gears 3a and 3b are fixed to both ends of the rotating shaft 3. The motor M1 is mounted on a frame provided on the side surface of the upper end of the vertical member 2c.
A chain 3c is suspended between a first side chain wheel 3d and a chain wheel 3e provided at the end of the rotating shaft 3, and the rotational force of the motor M1 is transmitted as the rotating force of the rotating shaft 3.

On the other hand, feed screw shafts 4 and 5 are vertically provided in the vertical members 2b and 2c of the frame 2, respectively.
A bevel gear 4a that meshes with the bevel gear 3a is fixed to the upper end of one screw shaft 4, and a bevel gear 5a that meshes with the bevel gear 3b is fixed to the upper end of the other screw shaft 5. has been done.

Beam holders 6, 7 are screwed onto the screw shafts 4, 5, and the screw shafts 4, 5 are screwed onto the beam holders 6, 7 as shown in FIGS. 3 and 4.
female screws 6a and 7a that are screwed together, and the beam attachment part 6.
b, 7b, and a beam 8 horizontally suspended parallel to the rotation axis 3 on the beam attachment parts 6b, 7b.
Both ends are fixed.

As shown in FIGS. 5 and 6, this beam 8 is provided with beam holder attachment parts 8a and 8b at both ends, a linear bearing member attachment part 8c along its lower edge, and a motor attachment part at one end. 8d
is provided.

Linear bearing member attachment part 8 of this beam 8
A rail 9 is fixed to c. This rail 9
As shown in FIG. 7, there is a fixed guide 9a and a movable rail 9 that is movable laterally along the fixed guide 9a.
The fixed guide 9a is fixed to the linear bearing member mounting portion 8c of the beam 8, and the movable rail 9b is fixed to the cutting blade holder 10. As shown in FIG. 8, this cutting blade holder 10 includes a cutting blade mounting part 10a horizontally installed along its length, an eccentric cam member receiving part 10b provided at one end thereof, and an upper end of the cutting blade mounting part 10a. The rail mounting portion 10c is provided in series with the rail mounting portion 10c.
As shown in FIG. 7, a cutting blade 11 is fixed to the cutting blade mounting portion 10a of the cutting blade holder 10, and is capable of horizontal reciprocating movement together with the movable rail 9b.

On the other hand, a motor M2 is fixed to the motor mounting portion 8d of the beam 8, and an eccentric cam member 12 as shown in FIGS. 9 and 10 is fixed to the rotation 11a of this motor M2. As shown in FIG. 11, a bearing member 13 is fixed to the circumferential surface of the eccentric cam member 12 so that the surface in contact with the eccentric cam member receiving portion 10b serves as a rolling surface. Cutting blade holder 10
It is slidably fitted to the eccentric cam member receiving portion 10b.

When the motor M1 is driven, the chain 3c
The rotating shaft 3 is rotated via the chain wheels 3d and 3e, and the rotation of the rotating shaft 3 causes the feeding screw shafts 4 and 5 to move in the same direction and at a constant speed via the bevel gears 3a, 4a and 3b, 5b. As the screw shafts 4 and 5 rotate, a beam 8 fixed to the beam holders 6 and 7 is lowered to the beam holders 6 and 7 through the beam holders 6 and 7 screwed to the screw shafts 4 and 5. The attached rail 9, the cutting blade holder 10 suspended from the rail 9, and the cutting blade 11 fixed to the cutting blade holder 10 are parallel to the core of the roll paper 14 horizontally placed on the roll paper mounting table 1. will be lowered to This downward movement of the cutting blade 11 is performed rapidly until just before it comes into contact with the outer circumferential surface of the roll paper 14, and after making the cut, it is configured to slowly descend.

When the cutting blade 11 reaches just before contacting the outer peripheral surface of the roll paper, the motor M2 is driven.
Eccentric cam member 1 directly connected to the motor shaft of the motor M2
2. The bearing member 13 fixed to the outer periphery of the eccentric cam member 12 is rotated eccentrically, and the cutting blade 11 fixed to the cutting blade holder 10 is moved in the horizontal direction through the eccentric cam member receiving portion 10b. It is reciprocated in the lateral direction relative to the stationary roll paper 14.

The roll paper is cut while giving the cutting blade 11 a combined motion of this reciprocating motion and the descending motion. After cutting, the motor M1 is rotated in the opposite direction to the previous direction to raise the cutting blade 11 and return it to its original position in preparation for the next cutting of the roll paper.

Effects of the invention Therefore, when cutting a roll paper placed in a horizontal direction along its core with a cutting blade, the invention has the following advantages:
It is possible to cut the roll paper by giving the cutting blade a combined motion of a descending motion parallel to the roll paper core and a reciprocating motion in the lateral direction of the roll paper, and the lower cutting action of the cutting teeth and the Combined with the pulling action caused by lateral sliding, roll paper can be cut quickly with extremely reduced cutting force.
This has the effect of drastically shortening processing time.

Therefore, compared to the conventional method of cutting roll paper by giving the cutting blade only a downward movement parallel to the roll paper core, the work efficiency is greatly improved, and the cutting power is excellent in small size cutting ability with small driving force. The present invention provides a cutting machine that effectively overcomes the drawbacks of conventional cutting machines.
eccentrically rotating an eccentric cam member provided on the motor rotation shaft and a bearing member provided on the circumferential surface thereof, and transmitting the eccentric rotational movement to a cutting blade holder provided on the cutting beam to cause it to directly reciprocate in a lateral direction; Therefore, the above compound motion can be obtained simply and rationally by the vertical movement of the vertically moving beam and the lateral movement of the cutting blade, thereby effectively achieving the purpose of efficiently and beautifully cutting the roll paper with a small cutting force. It is something that can be achieved.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, FIG. 1 is a front view of the roll paper cutting machine of the present invention, and FIG. 2 is a diagram showing FIG. 1A.
- A sectional view taken along line A, FIG. 3 is an enlarged plan view of the beam holder, FIG. 4 is a front view of FIG. 3, FIG. 5 is an enlarged plan view of the beam, and FIG. 6 is a front view of FIG. 5. 7th
The figures are an enlarged sectional view taken along line B-B in Fig. 1, Fig. 8 is an enlarged front view of the cutting blade holder, Fig. 9 is an enlarged front view of the eccentric cam member, Fig. 10 is a side view of Fig. 9, and Fig. 10 is an enlarged front view of the eccentric cam member. 1
FIG. 1 is an enlarged longitudinal sectional view showing the relationship between an eccentric cam member and an eccentric cam member receiving portion. 1... Roll paper mounting stand, 2... Form body, 3...
Rotating shaft, 3a, 3b...Bevel gear, 4, 5...Feed screw shaft, 4a, 5a...Bevel gear, 6, 7...Beam holder, 8...Beam, 9...Rail, 10
... Cutting blade holder, 10b ... Eccentric cam member receiving part, 11 ... Cutting blade, 12 ... Eccentric cam member, 1
4... Roll paper.

Claims (1)

[Scope of utility model registration request] In a roll paper cutting machine that cuts a roll paper placed in a horizontal direction with a cutting blade along its core, the cutting blade is horizontally suspended so as to be vertically movable parallel to the roll paper core, and upper and lower parts supporting the cutting blade are used. The movable beam is provided with a swinging mechanism that causes the cutting blade to reciprocate in the lateral direction, so that the roll paper is cut by a combined movement of the downward movement of the cutting blade and the lateral reciprocating movement, and the cutting A motor is attached to one end of the vertically movable beam as a swinging mechanism that gives horizontal reciprocating motion to the blade, an eccentric cam member is rotatably provided on the rotating shaft of the motor, and a bearing member is provided on the circumferential surface of the eccentric cam member. and an eccentric cam member receiving portion is formed at one end of a cutting blade holder which is attached to and supports a cutting blade so as to be movable in a horizontal direction with respect to the vertically movable beam, and the eccentric cam member is connected to the cutting blade through the bearing member. The eccentric cam member and the bearing member are slidably fitted to the eccentric cam member receiving portion of the holder, and the eccentric cam member and the bearing member are rotated eccentrically by the drive of the motor, and this eccentric rotational movement is transmitted to the eccentric cam member receiving portion of the cutting blade holder and the cutting blade. A roll paper cutting machine characterized by being configured to obtain horizontal reciprocating motion.