JP5757444B2 - Industrial blade replacement unit - Google Patents

Description

The present invention relates to an industrial blade replacement unit capable of easily exchanging an industrial blade such as a sewing blade attached to a sewing drum, for example, by performing a sewing process on a long sheet. For more information on when or cutting an elongated paper or film sheet or the like, or of you order or put the perforations industrial cutting tool is worn, easily replaced with industrial cutlery of new even in a short period of time in the amateur The present invention relates to a replacement unit for industrial blades.

Conventionally, as shown in FIG. 1, an industrial blade such as a sewing machine blade is attached to a sewing machine cylinder by inserting the sewing machine blade 3 into a groove 2 dug in the sewing machine cylinder 1 together with a fixing plate 4 called a liner. As shown, the sewing machine blade 3 is pressed against a side wall in the groove 2 with a bolt 5 provided on the fixing plate 4 together with the fixing plate 4 so as not to move. In this method, it is necessary to finely adjust the height of the sewing machine blade 3 protruding from the sewing machine body 1. For example, the sewing machine blade 3 is initially protruded from the sewing machine body 1 around 1 mm on the average in the longitudinal direction, and lightly applied to the side wall of the groove together with the fixing plate 4 by a plurality of bolts 5 provided on the side surface of the fixing plate 4 in that state. The sewing machine blade 3 is temporarily fixed by pressing. Thereafter, the sewing drum 1 is idled and the protruding sewing blade 3 is pressed against the backup roller 7 (see FIG. 7). Then, the sewing machine blade 3 too the projecting since pushed to a distance in contact with the surface of the backup roller 7, it is possible to secure the filtrate out required to cut the elongated sheet or the like passes. Thereafter, the bolts 5 are finally tightened, and the sewing machine blade 3 is firmly fixed so as not to move from the set position.
US Patent Application Publication No. 2007/0212176 JP 61-81365 A Japanese National Patent Publication No. 6-507121

  In the above-mentioned mounting method, the sewing machine blade is crossed in the longitudinal direction by manual work, and on average, it is projected and fixed in parallel to the sewing machine cylinder of about 1 mm, but the manual work is too delicate and skillful. It is a difficult task for operators. In addition, the amount of force applied to the bolts for temporary fixing is delicate and requires skill. That is, if the bolt is closed too much, the sewing machine blade is completely fixed and hits the backup roller and cannot move. Further, if the lock is weak, troubles such as the sewing machine blade falling off during rotation occur.

In the case installation of industrial cutting tools is insufficient, or generating a defective elongated sheet or film sheet is insufficiently cut. Furthermore, if too much of the industrial blade is taken out, the blade is worn out in a short time, which is extremely uneconomical.

Under such circumstances, the operators handling the sewing machine cylinders do not use industrial cutters many times or in some cases, dozens of times to ensure that long sheets or film sheets are cut or perforated. are forced to redo the set, it would be to spend a lengthy wasted time. As an operator who replaces the sewing machine blade, if there is a machine blade mounting unit that can be easily replaced in a short time, the working efficiency is greatly improved.
In view of the above problems, the present invention provides a replacement unit for an industrial blade that can be replaced very easily when an industrial blade such as a sewing blade is worn.

In order to solve the above problems, replacement unit industrial tool of the present invention consists of a fixed plate for attaching the industrial tool into the groove for only mounting of industrial knives provided on the sewing machine body and the perforated cylinder in replacement unit industrial knives, industrial blades fixed to the fixed plate and having a magnet for securing the fixing plate is provided on the magnet and prior Symbol perforation cylinder for fixing the industrial tool groove Is a replacement unit for an industrial blade consisting of a bolt for pressing and fixing to the side wall of the groove of the sewing machine drum, and adjusts the margin of the industrial blade on the surface of the fixing plate to which the industrial blade is fixed. It is characterized by the fact that a reference line is clearly indicated.

In order to solve the above problems, different replacement unit industrial knives of the present invention, grooves for mounting of industrial blades formed on the sewing machine body is without leading to both side ends of the sewing machine body, wherein it is characterized by a trapezoidal or linear and groove formed in by that shape the combination of the curve that matches the shape of the fixing plate in the inside of both side ends of the sewing machine body.

  There is no particular restriction on the material of the fixing plate. Known metals, synthetic plastic resins, wood, ceramics, rubber, paper, mixtures thereof and the like can be used.

  There are no particular restrictions on the magnetic force or the like of the material, quantity, shape, or magnet of the magnet or bolt embedded in the fixed plate.

  Further, there are no particular restrictions on the material, diameter, width, etc. of the sewing machine cylinder or the backup roller provided together with the sewing machine cylinder. Usually, since rigidity and surface strength are required, a metal surface subjected to a treatment for curing the surface is used, but is not limited thereto.

  Furthermore, as the industrial blade used in the present invention, for example, a single blade type having a thickness of 0.7 mm and a hardness HS of 70 ° or a double blade type having a thickness of 0.3 mm and a hardness of HS 85 ° can be suitably used. It is not limited to.

  Note that the shape of the fixing plate and the shape of the groove provided in the sewing machine barrel should ensure that the industrial blade is in the correct position if it can be inserted when the direction of the fixing plate is fixed. Because it is installed in the factory, accidents during work are prevented and efficiency is increased.

In addition, when the industrial blade is fixed to the fixed plate with a magnet, it is convenient if a reference line is drawn so that the amount of protrusion required for the industrial blade to be pressed against the backup roller can be easily confirmed. For example, if the ruled line is provided at a protruding position where it starts to hit the sewing machine body and a position where adjustment will start to occur if the line is further protruded, the operator can easily put an industrial knife between the two ruled lines. It is very convenient because it only has to be fixed.

  According to the industrial blade replacement unit of the present invention, since the magnetic force of the magnet embedded in the fixed plate is used, if the industrial blade is pressed against the fixed plate, it sticks as it is. Then, if the fixing plate with the industrial blade set is put in the groove, the magnetic force of the magnet embedded in the key of the fixing plate is completely brought into close contact with the lower surface of the fixing plate, the bottom of the groove, and the industrial blade and the side wall of the groove. . The industrial blade thus installed is not firmly fixed in a temporarily fixed state. Therefore, if the industrial blade is rotated on the fixed plate after the industrial blade is randomly installed and the industrial blade is applied to the backup roller, it is automatically pushed back by the amount that protrudes too much into the groove of the sewing drum. Is adjusted.

The grooves of the fixing plate and the sewing machine cylinders, for the shape never each other matches the non-fixed direction, also happens an accident such as attachment only by operating without removing incorrectly direction would defeat the tool or unit I don't get it. That is, even a beginner can eliminate the troublesome adjustment when replacing worn industrial blades, and the replacement operation can be completed in a very short time.

It is a perspective view which shows the attachment method of the conventional industrial blade. It is sectional drawing in the sewing machine cylinder which shows the attachment state of the conventional industrial blade. (A), (B), and (C) are the top view, XX sectional view, and YY sectional view of the mounting plate which comprises this invention. It is a perspective view which shows the replacement unit of the industrial blade of this invention. It is sectional drawing which shows the attachment state of the industrial blade in the replacement unit of the industrial blade of this invention. It is a perspective view which shows the state of two types of reference lines used as a standard when attaching an industrial blade to a fixed plate. It is a principal part schematic diagram which shows a motion of a sewing machine drum.

As shown in FIG. 3A, the fixing plate 4 according to the present invention is a prism having a trapezoidal cross section, for example, in a plan view or as shown in FIGS. As shown in FIG. 5B, magnets 6 are embedded at substantially equal intervals on the side and bottom surfaces. Further, as shown in FIGS. 4A and 4C, bolts 5 are provided so as to be freely protruded between magnets 6 arranged at substantially equal intervals.

In addition, there is no special restriction | limiting regarding arrangement | positioning of the magnet 6 of the said stationary plate 4 side surface and a bottom face. What is necessary is just to arrange | position suitably so that it can fix temporarily with substantially equal fixing force. Similarly, there is no particular limitation on the arrangement of the bolts 5 as long as the fixing plate and the industrial blade can be firmly pressed against the side wall of the groove 2 of the sewing machine drum 1 with substantially equal fixing force. Also it is not necessary mounting only holes bolts passing through the fixing plate 4, may be a depth bag shape to the middle of the fixed plate 4.

As shown in FIG. 4, the blade replacement procedure by the industrial blade replacement unit of the present invention is performed by attaching the industrial blade 3 to the side surface on the magnet 6 side of the fixing plate 4 previously removed from the sewing machine drum 1. It is automatically fixed just by moving closer to the magnetic force, but the industrial blade 3 can be slid freely in that state, so if you let the operator see the required margin on the eye side Good.

Incidentally, as shown in FIG. 6, in this embodiment a guide position to fix the industrial tool 3 to the fixed plate 4 has it previously scribed. For example, the ruled line a indicated by a straight line in FIG. 6 is less likely to come out when the lower side c of the industrial blade 3 is fixed below the line, so that the backup roller is rotated when the sewing machine body 1 is rotated. 11 and the ruled line b indicated by a broken line has too much margin when the lower side c of the industrial blade 3 is fixed above the line, and the industrial blade 3 is attached to the backup roller 11. This is a position where an accident such as a cutting edge being cut off due to excessive hitting is predicted to occur. If the fixing position of the industrial blade 3 is clearly indicated in this way, the operator at the site slides the industrial blade 3 fixed to the fixing plate 4 at random, and sets the lower side c of the industrial blade 3 to the aforementioned position. It is only necessary to fix the space between the ruled lines a and b.

Then, the fixing plate 4 to which the industrial blade 3 is fixed may be dropped in accordance with the shape of the groove 2 dug in the sewing machine cylinder 1. If it does so, it will adhere to the arrangement | positioning shown in FIG. 5 automatically with the magnet 6 of the side surface and bottom face which are provided in the fixing plate 4. FIG.

Thereafter, as shown in FIG. 7, when the sewing machine drum 1 is rotated, the industrial blade 3 hits the surface of the backup roller 7 that rotates in synchronism . However, as described above, the industrial blade 3 is temporarily fixed together with the fixed plate 4, so that it is stabilized by being pushed inward of the groove 2 to a position where it contacts the surface of the backup roller 7. In this state, the bolt 5 is finally tightened to firmly fix the fixing plate 4 and the preparation is completed.

When the industrial blade replacement unit that has been prepared as described above is operated, as shown in FIG. 7, the long paper or film sheet passing through the pass line P indicated by the alternate long and short dash line is an industrial blade. 3 is cut whenever it comes into contact with the outer peripheral surface of the backup roller 7.

  The groove 2 of the sewing machine cylinder 1 and the shape of the fixing plate 4 are set to be substantially the same shape. However, if the fixing plate 4 is tried to be inserted in the reverse direction, the shape does not match. It is not possible. Therefore, it plays the role of preventing errors in the mounting direction.

In addition, this invention is not limited to the said Example. For example , the shape of the fixed plate 4 is not limited to a trapezoidal shape although it is limited to a range that does not hinder the work in terms of the outer shape or the cross section.

DESCRIPTION OF SYMBOLS 1 Sewing drum 2 Groove 3 Industrial cutter 4 Fixing plate 5 Bolt 6 Magnet 7 Backup roller a, b Ruled line c Lower side of industrial cutter 3

Claims (2)

In industrial tool replacement unit consisting of the fixing plate for attaching the industrial tool into the groove for mounting only industrial knives provided on the sewing machine body and the sewing machine body, since the fixing plates to fix the industrial tool industrial made industrial knives fixed to the fixed plate and having a magnet for securing the groove provided in the magnet and prior Symbol perforation cylinder and a bolt for fixing against the side wall of the groove of the sewing machine body An industrial blade replacement unit, characterized in that a reference line for adjusting the load of the industrial blade is clearly indicated on the surface of the fixed plate to which the industrial blade is fixed. unit. The groove for mounting the industrial blade formed in the sewing machine cylinder is formed in a trapezoidal shape that matches the shape of the fixed plate or a combination of a straight line and a curve inwardly on both ends of the sewing machine cylinder. Item 2. The industrial blade replacement unit according to Item 1.

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