KR920002617Y1 - Leather cutter - Google Patents

Abstract

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Description

Improved leather cutting machine

1 is a perspective view showing a conventional leather cutting machine.

2 is a perspective view showing an improved leather cutting machine of the present invention.

3 is a sectional view taken along the line B-B in FIG. 2 showing the configuration of the main shaft.

Figure 4 is a cross-sectional view taken along the line A-A of Figure 2 illustrating the lifting operation state of the roller mounting device according to the present invention.

Figure 5 is a longitudinal sectional view showing the configuration of the upper fixing member according to the present invention.

* Explanation of symbols for main parts of the drawings

1: upper fixing member 2: inclined surface

3: adjusting groove 4: adjusting pin

5: inclined guide groove 7: adjustment bolt

9, 9 ': high information bolt 11: lower fixing member

12: adjusting knob 13: gum mounting groove

14: Cam 15: fixed pin

21: pressing plate 22: fixed plate

24: adjusting bolt

The present invention relates to a leather cutting machine, and in particular, by installing a lifting device using a cam in the existing leather cutting machine so as to be able to freely rotate the pedestal on which the leather to be cut is placed and the roller mounting fixture on which the pedestal is fixed. The cutting blades fixed on the fixed rollers and the flow rollers installed on the roller mounting holes are contacted with each other to proceed with the cutting of the leather, or the cutting blades and the floating rollers are separated from each other so that the cutting of the leather can be accurately stopped at an arbitrary position. One outline relates to a leather cutter.

Conventionally, leather cutters, which have been used to cut a certain size of leather into suitable sizes and shapes according to the application, are shown in FIG.

Here, a fixed roller (not shown), which is rotated by receiving power by a gear group, is built on the frame 32, is built on the bed 33 below, and on the bed 33 below. The roller roller (35) of suitable shape, in which the flow roller (34) is built up, is provided, and one end of the roller (35) and one side of the bed (33) are fastened to each other (35 ', 33). ') Are each formed and assembled together as the pin 36, the roller mounting holes 35 are assembled up and down freely around the pin 36, the other side of the bed 33 and the roller mounting holes 35 On the other side of each other, the projections 33a and 35a protrude from each other while being positioned on a vertical line with each other, and at the same time, the adjustment bolt 37 is screwed onto the projections 33a and 35a, and the adjustment bolt ( 37 is rotated so that the roller mounting holes 35 can be rotated up and down, and on the upper surface of the bed 33, It was done by fixing the pedestal 38 which has a shape.

The conventional leather cutting machine having such a configuration is provided between the fixed roller roller 39 and the roller roller 34 arranged on the roller 32 in consideration of the thickness of the leather to be cut. After adjusting the spacing appropriately, the cutting of the leather is performed, and the spacing adjustment is performed by rotating the adjusting bolt 37 screwed onto the protrusions 33a and 35a in arbitrary directions. The roller mounting holes 35 are rotated up and down about the pins 36 that couple the ends 33 'and 35' to each other, and are adjusted at arbitrary intervals. When the leather to be cut is placed on the pedestal 38 in a state where the distance between the rollers 34 is properly adjusted, and then a motor (not shown), which is a driving source, is operated, the leather has a blade 39 and a flow roller ( 34) Arbitrary shape and size while passing between It was to be cut with a machine.

The conventional leather cutter which cuts the leather well by the above-described work process has to stop the motor in operation when it is to be stopped at an arbitrary cutting position during the cutting operation. Even if the power is cut off, the motor is completely stopped by the inertia force of the rotor and the fixed roller 31, and the idler rotates to some extent until the cutting operation is completed while the fixed roller is no longer rotated.

Therefore, a certain distance (ie idle distance of the fixed roller that is fair until the motor is completely stopped) is predicted to a certain distance from the cut end portion of the leather to be cut to a predetermined shape and size, and the front part by that idle distance. Since the motor had to be turned off, the process of cutting and cutting was very cumbersome and the interruption of cutting was not expected at the correct position. The motor was turned on and off from time to time. This has to be done, resulting in loss of power and shortening the life of the motor.

In addition, in the interval adjusting means for adjusting the gap between the blade 39 on the fixed roller and the flow roller 34 in consideration of the thickness of the leather, the projections formed on the bed 33 and the roller mounting holes 35, respectively ( There was a hassle of having to adjust the two adjusting bolts 37 screwed to 33a, 35a) individually using a suitable hand tool.

Looking at the installation structure of the main shaft for transmitting power to the fixed roller built on the frame 32, the worm formed in the central portion of the main shaft is engaged with the worm gear fixed to the fixed roller, the driving shaft at one end of the main shaft The pulley connected to the rotor and the belt is fixedly installed by the key, and is configured in a simple structure in which bearings are condensed as being supported by the frame 32 on the main shaft which is arranged across the inner part of the frame 32.

The installation structure of the main shaft has a way to cope with the phenomenon that the main shaft is eccentric due to wear of the main shaft, bearing or worm or worm gear due to long-term use in the process of being rotated by receiving the power of the motor by the belt It was implying that there was an unreasonable closure that the main shaft itself had to be exchanged.

The present invention is devised to solve such various problems of the prior art, and the purpose of the present invention is listed as follows.

First, the upper fixing member provided with a series of gap adjusting means and the lower fixing member installed at the center of the cam having a proper shape fixed to the operating handle or more are appropriate for the roller mounting holes and the bed forming the conventional leather cutting machine. It is fixed to be installed on the vertical line and the operating knob is rotated up and down as the cam is rotated, so that the roller installation port is rotated up and down. As a result, the flow roller and the blade are contacted or spaced apart. With the motor still running, cutting and cutting can be freely adjusted to precisely interpolate to suit the size and shape of the leather.

Second, by providing a simple principle of spacing means on the upper fixing member can easily adjust the spacing between the blade and the flow roller to be adjusted according to the thickness of the leather to provide convenience of spacing.

Third, when the eccentricity of the main shaft occurs due to long-term use, a parallel moving means of the main shaft 40 is installed at the frame portion where one end of the main shaft is installed across the inner shaft of the frame to transmit the rotational force on the fixed roller. By moving the main axis in parallel to one side to maintain the state intactly built in the inner shaft portion of the frame to keep the main axis in a horizontal state can extend the replacement time of the main axis due to the eccentric phenomenon.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

As shown in FIGS. 2 to 5, the worm 40 ′ of the worm 40 of the main shaft 40 is engaged with the worm gear 31 ′ on the side of the fixed roller 31 so that the blade 39 is installed. (31) is mounted on the rotatable frame (32) and the roller roller (35) of the appropriate shape in which the flow roller 34 is built on the bed (33) below the roller assembly (35) And the fastening ends 35 'and 33' formed at one side of the bed 33 are assembled to each other by pins 36 so that the roller mounting holes 35 can be vertically rotated. Fixing several upper fixing members 1 having an adjustment groove 3 having an inclined surface 2 of an appropriate angle and an inclined guide groove 5 penetrating the adjustment groove 3 in one center of the sphere 35. The head portion of the adjusting bolt (7), which is mounted with the bolt (9) and screwed into the bolt fastening hole (6) of the adjusting piece (4), is inserted into the inclined guide groove (5) of the upper fixing member (1) and is installed. The adjusting piece 4 is installed to flow within the range of the guide groove 5, and the cam 14 having a predetermined shape is provided on the adjusting knob 12 in the vertically downward bed 33 in which the upper fixing member 1 is driven. It is fixed by the fixing pin 15 and the cam 14 is described in the cam mounting groove 13 of the lower fixing member 11, the adjustment piece on the upper fixing member 1 in accordance with the rotation of the adjustment knob 12 The lower fixing member 11 is provided with a plurality of high information bolts 9 'so as to push (4), and the main shaft 40 having the pulley 41 mounted at one end thereof has a bearing 43 on the frame 32. 43 '), which is installed through and fixed to one side end of the bearing plate 21 with the fixing plate 22 and the bolt 23 so as to abut on the side of the bearing 43, and one end at the center of the fixing plate 22. The adjustment bolt 24 penetrates the contact plate 21 so as to abut.

In the figure, reference numeral 25 is a nut and 26 is a washer.

The improved leather cutter according to the present invention having such a configuration, according to the thickness of the leather to be cut, first adjusts the gap between the blade 39 of the fixed roller 31 and the flow roller 34 on the upper fixing member 1. ) To move forward and backward to adjust easily.

The adjustment process is to adjust the cam 14 to abut by releasing the adjustment bolt (7) in the state fitted on the inclined guide groove (5) on both sides of the upper fixing member (1) and then properly flows before and after As the piece 4 is moved along the inclined surface 2 of the adjustment groove 3, the flow distance of the upper fixing member 1 to be elevated by the cam 14 is adjusted appropriately.

In addition, if it is confirmed that an arbitrary interval is maintained, the blade by a simple adjustment process to be firmly fixed on the adjusting piece (4) adjusting groove (3) by pressing the adjusting bolt (7) by pressing on the guide groove (5). The distance between the 39 and the flow roller 34 can be adjusted simply and accurately.

Adjusting the adjusting piece (4) on the upper fixing member (1) to properly adjust the gap between the blade 39 and the flow roller (34), and then rotate the adjusting knob 12 downward, the upper fixing member (1) The constant distance is maintained between the blade 39 and the flow roller 34 by rotating downward about the pin 36 connecting the respective fastening ends 33 'and 35' away from the restraining force of the cam 14. .

In this state, when the leather to be cut is placed on the pedestal 38 and the motor is turned on, the fixed roller 31 is rotated by the main shaft 40, but is fixed on the fixed roller 31 by a predetermined interval. By maintaining a fixed interval between the blade 39 and the flow roller 34 is fixed to maintain the cutting of the leather is not made.

In this state, as shown in FIG. 4, when the adjusting knob 12 on the lower fixing member 11 side fixedly installed on the bed 33 is rotated downward, the cam 14 on the adjusting knob 12 rotates at the same time. While pushing up the adjusting piece (4) of the upper fixing member (1) and accordingly the roller roller (35) is installed in the flow roller 34 is rotated upward with respect to the pin (36) and flows with the blade (39) The roller 34 is in contact with the cutting of the leather is made.

If you want to stop the cutting work during the cutting operation of the leather in this operation process by rotating the control knob 12 up the upper member (1) is released from the speed of the cam 14 and at the same time the roller mounting holes (35) ) Is rotated downwardly around the pin 36, so that a constant interval is maintained between the blade 39 and the flow roller 34, and the cutting operation is immediately stopped.

The improved leather cutter according to the present invention, which rotates the adjusting knob 12 so that the cutting operation of the leather can be carried out or stopped in the state where the motor is continuously operated, turns the motor on and off as in the prior art and stops its progress and interruption. It is possible to completely eliminate the dead ends and to make the leather work in the cutting operation easily, and to stop the leather exactly at the cutting stop position, thereby cutting the leather according to the size and shape of the leather set at random. You can get it.

If the main shaft 40 itself or the bearings 43 and 43 'or the worms and worm gears 40' and 31 'are worn out due to the long-term use of the leather cutter, the spindle 40 may be eccentric. By tightening the adjusting bolt 24 by using the pressing plate 21 can move the bearing 43 and the main shaft 40 to one side, and the main shaft 40 can be reduced to a horizontal state without a gap caused by wear. This has the beneficial effect of extending its service life to some extent.

Claims (1)

The worm 40 'of the main shaft 40 and the worm gear 31 on the side of the fixed roller 31 are engaged so that the fixed roller 31 having the blade 39 is installed on the rotatable frame 32 and the bed below it. (33) Mounts the roller roller (35) of the appropriate shape in which the flow roller (34) has been installed, and the fastening end (35 ') formed at one side of the roller (35) and the bed (33) (33) ') Is assembled to each other by the pin 36 so that the roller mounting mechanism 35 is installed up and down rotation, the adjustment having an inclined surface (2) of the proper angle in the center of one side of the roller mounting mechanism (35) The upper fixing member 1 having the groove 3 and the inclined guide groove 5 penetrating the adjusting groove 3 is mounted with several high information bolts 9 and bolt fastening holes 6 of the adjusting piece 4. Head portion of the adjustment bolt (7) screwed into the screw is inserted into the inclined guide groove (5) of the upper fixing member (1) to allow the adjusting piece (4) to flow within the inclined guide groove (5) range In the vertically downward bed (33) on which the upper fixing member (1) is mounted, a cam 14 having a predetermined shape is fixedly installed to the adjusting knob 12 by the fixing pin 15, and the cam 14 is It is interposed in the cam mounting groove 13 of the lower fixing member 11 and is lowered by a plurality of high information bolts 9 'to push the adjusting piece 4 on the upper fixing member 1 in accordance with the rotation of the adjusting knob 12. The fixing member 11 is installed, and the main shaft 40 in which the pulley 41 is mounted at one end thereof is supported by the bearings 43 and 43 'on the frame 32 and installed therethrough. The pressing plate 21 is fixedly installed with the fixing plate 22 and the bolt 23 so as to abut against the side, and one end of the fixing plate 22 is in contact with the pressing plate 21 to penetrate the adjusting bolt 24. Improved leather cutter, characterized in that the installation.