JP6762021B1 - Slicer and slicing method - Google Patents

Abstract

SOLUTION: A rotation control unit 201 rotates one of a pair of pulleys to send a traveling band knife toward a cutting edge, and brings the traveling band knife into contact with a regulation roller on the upstream / downstream side while a pair of guide blades. Run between. The setting control unit 202 sets the position of the cutting edge on the upstream / downstream side of the traveling band knife detected based on the position detection sensor on the upstream / downstream side as the reference cutting edge position on the upstream / downstream side. The delivery control unit 203 sends the work piece toward the cutting edge of the traveling band knife by rotating the feed roller to which the work piece is pressed, and slices the work piece into a sheet shape. The measurement control unit 204 measures the position of the cutting edge on the upstream / downstream side of the traveling band knife detected based on the position detection sensor on the upstream / downstream side before and after slicing as the measuring cutting edge position on the upstream / downstream side. The adjustment control unit returns the current cutting edge position on the upstream / downstream side to the reference cutting edge position on the upstream / downstream side by adjusting the inclination of the rotation shafts of the pair of pulleys and the position of the regulation roller on the upstream / downstream side. [Selection diagram] Fig. 4

Description

The present invention relates to slicers and slicing methods.

Conventionally, there has been a slicer technique for slicing a work piece into a sheet by rotating a band knife (also referred to as an endless blade or an annular blade).

For example, US Pat. No. 4,441,396 (Patent Document 1) discloses a slicer for slicing leather, textile products, and the like. In this slicer, a sharpening device equipped with two grindstones urged toward the cutting edge of the endless blade, a photocell that detects the position of the cutting edge of the endless blade, and a blade of the endless blade based on the signal of the photocell. It is equipped with a key that pushes the element toward the cutting edge. Further, by adjusting the inclination of the rotation shafts of the pair of pulleys around which the endless blade is wound, the endless blade is pulled out or pulled toward the cutting edge. As a result, the position of the cutting edge of the endless blade can be made unchanged with high accuracy.

Further, Japanese Patent Application Laid-Open No. 2009-154250 (Patent Document 2) describes an endless band knife made of a band-shaped metal having a blade formed on one end face, and a pair of pulleys around which the band knife is wound in a tense state. A method for adjusting the blade position of a band knife type slicer using the above is disclosed. In this blade position adjustment method, at least one of the pulleys is driven to drive the band knife, and the work piece is sandwiched by a pair of nip rolls, and when slicing into a sheet while feeding the work piece to the band knife, liquid is applied to the band knife. The position of the cutting edge of the band knife is controlled by injecting and adjusting the increase or decrease of the thermal expansion of the band knife. As a result, it is possible to provide a polishing pad having excellent thickness accuracy and smoothness, which is particularly suitable for use in a chemical mechanical polishing method.

Further, in Japanese Patent Application Laid-Open No. 2018-20396 (Patent Document 3), at least, a rotating first and second pulleys and an annular shape that is hung on the first and second pulleys and rotates and has a ring shape and a blade on the entire peripheral edge. A slicer including a blade and a first belt conveyor on which a material to be processed is placed, which is located inside the ring of the annular blade, is disclosed. In this slicer, the gap between the upper surface of the belt of the first belt conveyor and the annular blade is the slice thickness of the material to be processed, and the belt of the first belt conveyor moves back and forth together with the material to be processed, and the material to be processed Is applied to the annular blade to slice the material to be treated. As a result, since the slice is cut by pulling with an annular blade, the finish of the sliced surface becomes smooth and beautiful, and it is also possible to slice a soft material, for example, a slice of steamed sweet potato with a skin.

U.S. Pat. No. 4,441,396 Japanese Unexamined Patent Publication No. 2009-154250 JP-A-2018-20396

In order to slice the work piece (or work material) with high precision thickness, it is necessary to keep the position of the cutting edge of the band knife with high precision and constant with respect to the delivery roller that sends the work piece to the band knife. There is. This is especially true when the work piece is a soft material and needs to be sliced with a high degree of precision.

The technique described in Patent Document 1 is a technique of detecting the cutting edge of an endless blade with a photocell and extruding the cutting edge of the endless blade with a key to keep the position of the cutting edge of the endless blade unchanged. , The position of the edge of the endless blade is maintained by abutting the key on the edge of the endless blade and adjusting the position of the edge of the endless blade with reference to the edge of the endless blade. Here, since the cutting edge and the cutting edge of the endless blade are separated by the dimension in the lateral direction of the endless blade, even if the position of the cutting edge of the endless blade is adjusted, the cutting edge is only the distance in the lateral direction of the endless blade. There is an error in the blade runout in the front-back direction and the blade runout in the vertical direction of the cutting edge. Therefore, there is a problem that the position of the cutting edge of the endless blade cannot be adjusted with high accuracy.

Further, Patent Document 2 describes that the position of the cutting edge of the band knife is controlled by injecting a liquid onto the band knife and increasing or decreasing the thermal expansion of the band knife. In this technology, it is considered that a smooth slicing surface is obtained by reducing the coefficient of friction between the band knife and the workpiece during slicing by injecting liquid into the band knife, and the position of the cutting edge of the band knife is accurate. It is hard to say that it is a high control technology.

Further, in the technique described in Patent Document 3, the material to be processed of the first belt conveyor is sliced by moving back and forth with respect to the annular blade, but in this technique, the material to be processed can be continuously sliced. Therefore, there is a problem that it is difficult to slice the material to be treated into a sheet.

In the slicer, in order to slice the workpiece with high thickness accuracy, it is necessary to keep the position of the cutting edge of the band knife with high accuracy. In the technique described in Patent Document 1, although the position of the cutting edge of the band knife is detected, the position of the cutting edge of the band knife is adjusted, so that the position of the most important cutting edge of the band knife is not controlled. There is a problem. Further, the position of the cutting edge of the band knife cannot be controlled by the technique described in Patent Documents 2-3. Therefore, in the prior art, there is a problem that the position of the cutting edge of the band knife cannot be controlled with high accuracy.

Therefore, the present invention has been made to solve the above problems, and provides a slicer and a slicing method capable of slicing a work piece with high thickness accuracy even when continuously slicing. The purpose.

The slicer according to the present invention includes a pair of pulleys, a pair of guide blades, a feed roller, a regulation roller on the upstream / downstream side, and a position detection sensor on the upstream / downstream side. The pair of pulleys are wound with an endless band knife, and each of the rotation axes is arranged so as to incline inward toward the cutting edge of the band knife. The pair of guide blades sandwich one band knife running between the pair of pulleys. The feed roller faces the cutting edge of the traveling band knife traveling between the pair of guide blades, and the rotation axis is arranged parallel to the slice direction of the cutting edge line of the traveling band knife. The regulation rollers on the upstream and downstream sides are provided on the upstream and downstream sides of the traveling band knife, and rotate while contacting only the double-edged surfaces constituting the cutting edges of the double-edged blades of the traveling band knife. The upstream / downstream position detection sensor is provided on the upstream / downstream side of the traveling band knife and detects the position of the cutting edge of the traveling band knife.

The slicer according to the present invention includes a rotation control unit, a setting control unit, a transmission control unit, a measurement control unit, and an adjustment control unit. The rotation control unit rotates one of the pair of pulleys to feed the traveling band knife toward the cutting edge, and brings the traveling band knife into contact with the regulation rollers on the upstream and downstream sides while guiding the pair of guides. Run between the blades. The setting control unit sets the position of the cutting edge on the upstream / downstream side of the traveling band knife detected based on the position detection sensor on the upstream / downstream side as the reference cutting edge position on the upstream / downstream side. The delivery control unit rotates the feed roller against which the work piece is pressed, so that the work piece is sent out toward the cutting edge of the traveling band knife and sliced into a sheet. Before and after the slice, the measurement control unit measures the position of the cutting edge on the upstream / downstream side of the traveling band knife detected based on the position detection sensor on the upstream / downstream side as the measuring cutting edge position on the upstream / downstream side. The adjustment control unit adjusts the inclination of the rotation shafts of the pair of pulleys and the position of the regulation roller on the upstream / downstream side to change the current cutting edge position on the upstream / downstream side to the reference cutting edge position on the upstream / downstream side. return.

The slicer slicing method according to the present invention includes a rotation control step, a setting control step, a transmission control step, a measurement control step, and an adjustment control step. Each step of the slicing method corresponds to each control unit of the slicer.

According to the present invention, it is possible to slice a work piece with high thickness accuracy even if it is continuously sliced.

It is the schematic which shows an example of the slicer which concerns on embodiment of this invention. It is a plan view (FIG. 2A) which shows the arrangement form of the rotation shaft of the pair of pulleys of the slicer which concerns on embodiment of this invention, and right side view (FIG. 2B) which shows the arrangement form of a pair of guide blades. A right side view and an enlarged view (FIG. 3A) of the regulation roller on the upstream side of the slicer according to the embodiment of the present invention, and a perspective view and a right side view (FIG. 3B) of the position detection sensor on the upstream side. It is a functional block diagram of the slicer which concerns on embodiment of this invention. It is a flowchart for showing the execution procedure of the slicing method which concerns on embodiment of this invention. The right side view (Fig. 6A) on the upstream and downstream sides showing an example of the case where the position detection sensor on the upstream and downstream sides detects the position of the cutting edge on the upstream and downstream sides, and the work piece delivered by the feed roller are displayed by the cutting edge of the band knife. It is a conceptual diagram (FIG. 6B) which shows an example of the case of slicing. A conceptual diagram (FIG. 7A) showing an example of the position of the cutting edge of the band knife with respect to the feed roller, and a right side view (FIG. 7B) when the position detection sensor on the upstream / downstream side detects the reference cutting edge position on the upstream / downstream side. is there. It is a conceptual diagram which shows an example of the relationship between the reference cutting edge position on the upstream side and the current cutting edge position on the upstream side. A conceptual diagram (FIG. 9A) showing an example of the relationship between the inward inclination of the rotation axis of the upstream pulley and the movement of the position of the cutting edge of the band knife on the upstream side, and the outward direction of the rotation axis of the upstream pulley. It is a conceptual diagram (FIG. 9B) showing an example of the relationship between the inclination and the movement of the position of the cutting edge of the band knife on the upstream side. It is a perspective view (FIG. 10A) showing an example of the position detection sensor on the upstream side and the regulation roller on the upstream side, and a right side view and a plan view (FIG. 10B) showing an example of the regulation roller on the upstream side. A plan view (FIG. 11A) showing an example of a slicer including a slice-side extrusion member, and a right side view and a plan view (FIG. 11B) showing an example of a slice-side extrusion member. A perspective view (FIG. 12A) and a right side view (FIG. 12B) showing an example of the configuration of another feed unit. It is a top view which shows an example of the slicer of an Example and a comparative example. It is a photograph of the workpiece and the workpiece, a plan view of the workpiece showing the thickness measurement position, and the result of the thickness accuracy and the repeated thickness accuracy.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings for the purpose of understanding the present invention. It should be noted that the following embodiment is an example embodying the present invention and does not limit the technical scope of the present invention.

As shown in FIG. 1, the slicer 1 according to the embodiment of the present invention basically includes an endless band knife 10, a pair of pulleys 11a and 11b, and a feed unit 12.

The band knife 10 is formed in an endless shape (annular shape) by connecting both ends of the band knife 10 in the longitudinal direction, one end of the band knife 10 in the lateral direction is formed as a double-edged cutting edge 10a, and the other end is formed. It is formed as a blade base 10b. The cutting edge 10a of the band knife 10 is the tip of both blades and has an isosceles right triangle shape in cross section. The blade edge 10b of the band knife 10 is U-shaped in cross-sectional view.

A band knife 10 is wound around the pair of pulleys 11a and 11b, and one (upper) band knife 10 and the other (lower) band knife 10 hung between the pair of pulleys 11a and 11b are A pair of pulleys 11 keeps the tension. The pair of pulleys 11a and 11b are provided on both ends of the frame body (not shown) of the slicer 1, respectively, and the rotation shafts 11a1 and 11b1 of the pair of pulleys 11a and 11b are installed so as to be rotatable substantially parallel to the horizontal direction. Will be done. Then, the band knife 10 is rotated by rotating either or both of the pair of pulleys 11a and 11b.

Here, as shown in FIG. 2A, each of the rotation shafts 11a1 and 11b1 of the pair of pulleys 11a and 11b is arranged so as to incline inward toward the cutting edge 10a of the band knife 10. In other words, the rotation shafts 11a1 and 11b1 of the pair of pulleys 11a and 11b are arranged in a C shape toward the blade edge 10b of the band knife 10 in a plan view. As a result, when the band knife 10 rotates, the band knife 10 travels while gradually feeding out in the direction of the cutting edge 10a.

As shown in FIG. 2B, the upper and lower surfaces of the band knife 10 running between the pair of pulleys 11a and 11b are sandwiched and pressed by the pair of guide blades 10c1 and 10c2. The pair of guide blades 10c1 and 10c2 guide the band knife 10 to travel, and prevent the band knife 10 from shaking in the vertical direction. The pair of guide blades 10c1 and 10c2 are further sandwiched and pressed by the pair of heavy guide blade main bodies 10d1 and 10d2. This makes it possible to replace and replace the pair of guide blades 10c1 and 10c2.

The feed unit 12 is provided at a position facing the cutting edge 10a of the band knife 10 (running band knife) traveling between the pair of guide blades 10c1 and 10c2. The feed unit 12 is provided with a pair of feed rollers 12a and 12b that feed the incoming workpiece W toward the cutting edge 10a of the traveling band knife 10. The lower feed roller 12a is provided below the cutting edge 10a of the traveling band knife 10, and the upper feed roller 12b is provided above the cutting edge 10a of the traveling band knife 10. The upper feed roller 12b may also be referred to as a presser roller. Each of the rotation shafts 12a1 and 12b1 of the pair of feed rollers 12a and 12b is arranged parallel to the slice direction of the cutting edge line of the traveling band knife 10 (longitudinal direction of the band knife 10). When the workpiece W enters the feed unit 12, it is pressed by the rotation of the pair of feed rollers 12a and 12b, hits the cutting edge 10a of the band knife 10, and is sliced into a sheet. The sliced workpieces W1 and W2 are vertically divided with the band knife 10 as a boundary.

Further, the slicer 1 includes regulation rollers 13a and 13b on the upstream and downstream sides, and position detection sensors 14a and 14b on the upstream and downstream sides.

The upstream and downstream regulation rollers 13a and 13b are provided on the upstream and downstream sides of the traveling band knife 10, and rotate while abutting only on the double-edged surfaces constituting the double-edged blades 10a of the traveling band knife 10. Here, the upstream side means the side opposite to the traveling direction of the band knife 10, and the downstream side means the traveling direction and the forward side of the band knife 10.

The rotation shafts 13a1 and 13b1 of the regulation rollers 13a and 13b on the upstream and downstream sides are provided substantially parallel to the traveling direction of the band knife 10 and are rotatably supported by the arms 13a2 and 13b2 on the upstream and downstream sides, respectively. The arms 13a2 and 13b2 on the upstream and downstream sides are provided on the frame of the slicer 1 so as to be movable in the lateral direction of the band knife 10.

The regulation roller 13a on the upstream side is composed of, for example, a dogleg roller having inclined surfaces 13a3 from both upper and lower ends toward the center, as shown in FIG. 3A. Since the inclined surface 13a3 of the regulating roller 13a abuts only on the double-edged surfaces 10d of the band knife 10, the regulating roller 13a on the upstream side can regulate the band knife 10 without touching the cutting edge 10a of the band knife 10. You can. Further, the inclined surface 13a3 of the regulation roller 13a on the upstream side comes into contact with the double-edged surfaces 10d of the band knife 10 to prevent the blade blurring in the direction of the blade edge 10a of the band knife 10 (the lateral direction of the band knife 10). , Prevents vertical blade shake of the band knife 10. The same applies to the regulation roller 13b on the downstream side.

The upstream and downstream position detection sensors 14a and 14b are provided on the upstream and downstream sides of the traveling band knife 10 and detect the position of the cutting edge 10a of the traveling band knife 10. The configurations of the position detection sensors 14a and 14b on the upstream and downstream sides are not particularly limited. For example, as shown in FIG. 3B, the position detection sensors 14a on the upstream side face each other with the periphery of the cutting edge 10a of the band knife 10 interposed therebetween. It has a light emitting unit 14a1 and a light receiving unit 14a2 arranged in. The light emitting unit 14a1 emits band-shaped light to the periphery of the cutting edge 10a of the band knife 10, and the light receiving unit 14a2 receives the light, but the band knife 10 blocks the light to the cutting edge 10a to receive the light. The portion 14a2 receives the light up to the cutting edge 10a of the band knife 10. Since the light receiving unit 14a2 does not receive light in the region from the main body of the band knife 10 to the cutting edge 10a, for example, it outputs a Low signal and receives light in the region from the cutting edge 10a of the band knife 10 to the outside. For example, a High signal is output. As a result, the position detection sensor 14a on the upstream side detects the position of the light receiving portion 14a2 that switches from the Low signal to the High signal from the blade edge 10b of the band knife 10 toward the blade edge 10a as the position of the blade edge 10 of the band knife 10. Can be done. The same applies to the position detection sensor 14a on the downstream side. For the position detection sensors 14a and 14b on the upstream and downstream sides, for example, an infrared sensor or the like can be adopted, but any camera or the like that can detect the position of the cutting edge 10a of the band knife 10 in a non-contact manner. There is no particular limitation.

Further, the slicer 1 further includes a slice side extrusion member 15. The slice-side extrusion member 15 is in surface contact with the blade base 10b of the traveling band knife 10 on the back side between the pair of guide blades 10c1 and 10c2, and is located on the upstream side and the downstream side of the band knife 10. Each of the band knives 10 is provided so as to be extrudable in the lateral direction of the band knife 10.

The configuration of the slice-side extrusion member 15 is not particularly limited. For example, the slice-side extrusion member 15 is composed of a rectangular plate, and one end of the slice-side extrusion member 15 in the lateral direction is a straight line of the blade edge 10b of the traveling band knife 10. It is installed so as to be parallel to the blade edge 10b of the band knife 10 and is in surface contact with the blade edge 10b. By regulating the double-edged surfaces 10d of the cutting edge 10a of the traveling band knife 10 with a pair of regulating rollers 13a and 13b and the cutting edge 10b of the band knife 10 with the slice-side extrusion member 15, the cutting edge 10a of the band knife 10 is regulated. It can run stably without shaking the blade. The slice-side extrusion member 15 can also extrude the blade edge 10b of the band knife 10 toward the blade edge 10a. Further, the slice side extrusion member 15 may be a roller other than the plate material. By contacting the roller of the slice-side extrusion member 15 with the blade edge 10b of the band knife 10, the blade edge 10b of the band knife 10 can be regulated by the slice-side extrusion member 15.

Further, the slicer 1 includes a pair of polishing grindstones 16a and 16b. The pair of polishing grindstones 16a and 16b are placed on the double-edged surfaces 10d (upper and lower surfaces) of the other band knife 10 at positions facing the other (lower) band knife 10 hung between the pair of pulleys 11a and 11b. Each is provided so that it can be contacted. The arrangement positions of the pair of polishing grindstones 16a and 16b are not particularly limited, but in FIG. 1, they are installed at positions near the center of the other band knife 10 hung between the pair of pulleys 11a and 11b. Since the cutting edge 10a of the band knife 10 is double-edged, each of the pair of polishing rollers 16a and 16b abuts substantially evenly toward the cutting edge 10a of the band knife 10 in the thickness direction of the band knife 10 to cause the band knife. The cutting edge 10a of 10 is evenly polished. A dust collector may be separately provided in the vicinity of the pair of polishing grindstones 16a and 16b.

Further, the slicer 1 includes a polishing side extrusion member 17 and a pair of regulating rollers 18a and 18b for a pair of polishing grindstones 16a and 16b. The polishing side extrusion member 17 is provided at a position facing the pair of polishing grindstones 16a and 16b with respect to the other band knife 10, and comes into contact with the blade edge 10b of the other band knife 10. The polishing side extrusion member 17 is provided so as to be extrudable in the lateral direction of the other band knife 10. This prevents the other band knife 10 from being pushed out toward the blade edge 10b by polishing the pair of polishing grindstones 16a and 16b. Further, since the length of the band knife 10 in the lateral direction is shortened by polishing the pair of polishing grindstones 16a and 16b, the length of the band knife 10 in the lateral direction is shortened and the polishing side is extruded. The cutting edge 10a of the band knife 10 can be extruded by the member 17. Further, the pair of regulation rollers 18a and 18b have the same configuration as the regulation rollers 13a and 13b on the upstream and downstream sides of one band knife 10 described above, and are provided on the upstream and downstream sides of the other band knife 10 and run. The other band knife 10 rotates while contacting only the double-edged surfaces 10d. By regulating the blade edge 10b of the other band knife 10 with the polishing side extrusion member 17 and regulating both blade surfaces of the cutting edge of the band knife 10 with a pair of regulating rollers 18a and 18b, the band knife 10 is similarly bladed. It can be run stably without blurring.

The pair of pulleys 11a and 11b, the feed unit 12, the upstream and downstream regulation rollers 13a and 13b, the upstream and downstream position detection sensors 14a and 14b, the slice side extrusion member 15, and the pair of polishing grindstones 16a and 16b are controlled respectively. It is controlled by the part. Each control unit has a built-in CPU, ROM, RAM, etc. (not shown), and the CPU uses, for example, the RAM as a work area to execute a program stored in the ROM or the like. Further, each part described later is also realized by the CPU executing a program.

Next, the configuration and the execution procedure according to the embodiment of the present invention will be described with reference to FIGS. 4 and 5.

First, when the user turns on the power of the slicer 1, the slicer 1 is activated. Therefore, the user then inputs the first rotation instruction to the slicer 1 via the operation panel attached to the slicer 1. Then, the rotation control unit 201 of the slicer 1 sends out the traveling band knife 10 toward the cutting edge 10a by rotating either or both of the pair of pulleys 11a and 11b, and the regulation roller 13a on the upstream / downstream side. , 13b is brought into contact with the pair of guide blades 10c1 and 10c2 (FIG. 5: S101).

Here, the rotation method of the rotation control unit 201 is not particularly limited, but for example, the rotation control unit 201 has a control motor (not shown) connected to either or both of the pulleys 11a and 11b at a predetermined rotation speed. The band knife 10 is run by rotating with.

Since each of the rotation shafts 11a1 and 11b1 of the pair of pulleys 11a and 11b is arranged so as to incline inward toward the cutting edge 10a of the band knife 10, when the band knife 10 starts traveling. , The band knife 10 is sent out toward the cutting edge 10a as a whole. On the other hand, since the regulation rollers 13a and 13b on the upstream and downstream sides are on the cutting edge 10a side of the band knife 10, the band knife 10 is sent out to the cutting edge 10a side by coming into contact with both blade surfaces 10d of the traveling band knife 10. To prevent. In this way, the band knife 10 always travels so as to be sent out in the direction of the cutting edge 10a.

When the rotation of the band knife 10 is started, the user then inputs a setting instruction to the slicer 1 via the operation panel. Then, the setting control unit 202 of the slicer 1 sets the cutting edge position on the upstream / downstream side of the traveling band knife 10 detected based on the position detection sensors 14a and 14b on the upstream / downstream side as the reference cutting edge position on the upstream / downstream side ( FIG. 5: S102).

Here, the setting method of the setting control unit 202 is not particularly limited, but for example, the setting control unit 202 activates the position detection sensor 14a on the upstream side and the traveling band knife on the upstream side as shown in FIG. 6A. The cutting edge position du0 of 10 is detected. Further, the setting control unit 202 activates the position detection sensor 14b on the downstream side to detect the cutting edge position dd0 of the traveling band knife 10 on the downstream side. The setting control unit 202 sets the detected upstream-side cutting edge position du0 by storing it in a predetermined memory as the upstream-side reference cutting-edge position (for example, the upstream-side zero point position). Further, the setting control unit 202 sets the detected downstream cutting edge position dd0 by storing it in the memory as a downstream reference cutting edge position (for example, a zero point position on the downstream side). As a result, the cutting edge position of the traveling band knife 10 on the upstream / downstream side, which is a reference before slicing the workpiece W, can be set as a reference.

When the setting of the reference cutting edge positions du0 and dd0 on the upstream and downstream sides is completed, the user then inputs a second rotation instruction to the slicer 1 via the operation panel. Then, the delivery control unit 203 of the slicer 1 rotates the pair of feed rollers 12a and 12b of the feed unit 12 (FIG. 5: S103).

Here, the rotation method of the delivery control unit 203 is not particularly limited, but for example, as shown in FIG. 6B, the transmission control unit 203 is a control motor connected to either or both of the pair of feed rollers 12a and 12b. By rotating (not shown) at a predetermined rotation speed, the pair of feed rollers 12a and 12b are rotated toward the cutting edge 10a of the band knife 10.

Here, the distance a between the lower feed roller 12a and the upper feed roller 12b is set to be smaller than the thickness t of the workpiece W. Further, in the vicinity of the lower feed roller 12a of the feed unit 12, a table 12c for guiding the workpiece W between the lower feed roller 12a and the upper feed roller 12b is provided.

Therefore, when the user places the workpiece W on the table 12c and puts it into the feed unit 12, the workpiece W guided by the table 12c is moved to the lower feed roller 12a and the upper feed roller 12b. The space between the two is entered, and the lower feed roller 12a and the upper feed roller 12b are pressed against each other.

In this state, the delivery control unit 203 rotates one or both of the pair of feed rollers 12a and 12b to press the workpiece W against the cutting edge 10a of the traveling band knife 10, and the band knife 10 travels. By rotation, the workpiece W is sliced into a sheet (FIG. 5: S104).

When the workpiece W is sliced, the upper and lower workpieces W1 and W2 after slicing are divided into upper and lower parts of the pair of guide blades 10c1 and 10c2.

Here, the delivery direction of the workpiece W1 is substantially perpendicular to the traveling direction of the traveling band knife 10. Therefore, when slicing the workpiece W, the cutting edge 10a of the traveling band knife 10 receives a resistance force in the direction opposite to the traveling direction of the band knife 10 on the cutting edge 10a of the band knife 10, and the cutting edge of the traveling band knife 10 The position of 10a is likely to fluctuate.

On the other hand, among the upper and lower workpieces W1 and W2 after slicing, the thickness of the target workpiece is determined by appropriately setting the position of the cutting edge 10a of the band knife 10 with respect to the pair of feed rollers 12a and 12b before slicing. , The desired thickness can be obtained. However, in order to make the thickness of the sheet-shaped work piece constant with high accuracy even after continuous slicing, the positions of the cutting edges 10a on the upstream and downstream sides of the band knife 10 with respect to the pair of feed rollers 12a and 12b are constant. Need to keep in.

For example, as shown in FIG. 7A, the distance x0 between the center line C of the pair of feed rollers 12a and 12b and the cutting edge 10a of the traveling band knife 10 is made constant on each of the upstream and downstream sides of the traveling band knife 10. Need to keep.

Therefore, before and after the user slices the workpiece using the slicer 1, the user inputs an adjustment instruction to the slicer 1 via the operation panel during maintenance of the slicer 1. Then, the measurement control unit 204 of the slicer 1 measures the cutting edge position on the upstream / downstream side of the traveling band knife 10 detected based on the position detection sensors 14a and 14b on the upstream / downstream side as the current cutting edge position on the upstream / downstream side. FIG. 5: S105).

Here, the measurement method of the measurement control unit 204 is not particularly limited, but for example, the measurement control unit 204 activates the position detection sensor 14a on the upstream side and the traveling band knife on the upstream side as shown in FIG. 7B. The cutting edge position du1 of 10 is detected and measured as the current cutting edge position on the upstream side. Further, the measurement control unit 204 activates the position detection sensor 14b on the downstream side, detects the cutting edge position dd1 on the downstream side of the traveling band knife 10, and measures it as the current cutting edge position on the downstream side.

Here, for example, in the traveling band knife 10 on the upstream side, as shown in FIG. 8, the thickness of the workpiece W1 (W2) after slicing becomes a desired thickness at the start of slicing the workpiece W. , The distance between the center line C of the pair of feed rollers 12a and 12b and the cutting edge 10a of the traveling band knife 10 is set to a specific distance xu0. At that time, the upstream side cutting edge position detected by the upstream side position detection sensor 13a corresponds to the upstream side reference cutting edge position du0 (zero point position).

Then, as the workpiece W is continuously sliced, the position of the cutting edge 10a of the traveling band knife 10 on the upstream side fluctuates, and the center lines C of the pair of feed rollers 12a and 12b and the traveling band knife 10 It is assumed that the distance xu1 between the cutting edge 10a and the cutting edge 10a fluctuates. At this time, by measuring the position of the cutting edge on the upstream side detected by the position detection sensor 13a on the upstream side as the current cutting edge position du1 on the upstream side, the position of the cutting edge 10a on the upstream side of the current traveling band knife 10 can be determined. It is possible to judge how much it has changed from the initial position. In FIG. 8, the cutting edge 10a of the traveling band knife 10 on the upstream side comes out in the direction of the cutting edge 10a, but conversely, it comes out in the direction opposite to the direction of the cutting edge 10a. Is the same. The same applies to the traveling band knife 10 on the downstream side.

When the measurement of the current cutting edge positions du1 and dd1 on the upstream and downstream sides is completed, the adjustment control unit 205 of the slicer 1 determines the inclination of the rotation shafts 11a1 and 11b1 of the pair of pulleys 11a and 11b and the regulation roller 13a on the upstream and downstream sides. By adjusting the positions of 13b, the current cutting edge positions du1 and dd1 on the upstream and downstream sides are returned to the reference cutting edge positions du0 and dd0 on the upstream and downstream sides (FIG. 5: S106).

Here, the adjustment method of the adjustment control unit 205 is not particularly limited. For example, the rotation shafts 11a1 and 11b1 of the pair of pulleys 11a and 11b are already inclined inward toward the cutting edge 10a of the band knife 10. From this state, for example, the rotation shaft 11a1 of the pulley 11a on the upstream side around which the band knife 10 on the upstream side is wound is further inclined inward toward the cutting edge 10a of the band knife 10, as shown in FIG. 9A. As described above, the rotation of the band knife 10 causes the upstream band knife 10 wound around the upstream pulley 11a to be sent out toward the cutting edge 10a. As a result, the position of the cutting edge 10a can be moved in the same direction as the cutting edge 10a without damaging the cutting edge 10a of the band knife 10 on the upstream side.

On the other hand, by inclining the rotation shaft 11a1 of the pulley 11a on the upstream side outward toward the cutting edge 10a of the band knife 10, as shown in FIG. 9B, the rotation of the band knife 10 causes the pulley 11a on the upstream side. The band knife 10 on the upstream side wound around the blade 10b is sent out in the direction of the blade edge 10b, on the contrary. As a result, the position of the cutting edge 10a can be moved in the direction opposite to the direction of the cutting edge 10a without damaging the cutting edge 10a of the band knife 10 on the upstream side.

In the above description, the inclination of the rotating shaft 11a1 of the pulley 11a on the upstream side has been described, but the same applies to the downstream side, and the inclination of the rotating shaft 11b1 of the pulley 11b on the downstream side around which the band knife 10 on the downstream side is wound is the same. Therefore, the position of the cutting edge 10a of the band knife 10 on the downstream side can be moved in the lateral direction of the band knife 10.

Further, for example, as shown in FIG. 10A, the regulation roller 13a on the upstream side is provided on the upstream side of the pair of guide blades 10c1 and 10c2, and is rotatably supported by one end of the arm 13a2 on the upstream side in the longitudinal direction. There is. The upstream arm 13a2 is provided above the band knife 10 along the lateral direction of the band knife 10, and the other end of the upstream arm 13a2 in the longitudinal direction is fixed to the frame of the slicer 1. It is connected to the control member 13a3. By contracting the expansion / contraction control member 13a3, as shown in FIG. 10B, the inclined surface 13a3 of the regulation roller 13a on the upstream side is brought into contact with the double-edged surfaces 10d of the band knife 10 on the upstream side, and the regulation roller 13a on the upstream side The position is moved in the direction opposite to the direction of the cutting edge 10a of the band knife 10. As a result, the position of the cutting edge 10a can be moved in the direction opposite to the direction of the cutting edge 10a without damaging the cutting edge 10a of the band knife 10. As the expansion / contraction control member 13a3, for example, a motor capable of electrically expansion / contraction control can be mentioned. On the other hand, by extending the expansion / contraction control member 13a3, the position of the regulation roller 13a on the upstream side can be moved in the same direction as the cutting edge 10a of the band knife 10.

In the above description, the movement of the position of the regulation roller 13a on the upstream side has been described, but the same applies to the downstream side, and the regulation roller 13b on the downstream side is expanded and contracted by the expansion and contraction control member connected to the arm 13b2 on the downstream side. The position of can be moved in the lateral direction of the band knife 10.

Regarding the band knife 10 on the upstream side, when the current cutting edge position du1 on the upstream side is separated from the reference cutting edge position du0 on the upstream side in the direction of the cutting edge 10a, in other words, the band knife 10 on the upstream side When the cutting edge 10a protrudes toward the cutting edge 10a, the adjustment control unit 205 tilts the rotation shaft 11a1 of the pulley 11a on the upstream side outward toward the cutting edge 10a of the band knife 10 on the upstream side. Alternatively, the position of the regulation roller 13a on the upstream side is moved in the direction opposite to the direction of the cutting edge 10a of the band knife 10.

Here, depending on the magnitude of the difference between the current cutting edge position du1 on the upstream side and the reference cutting edge position du0 on the upstream side, the degree of inclination of the rotation shaft 11a1 of the pulley 11a on the upstream side and the regulation roller 13a on the upstream side The degree of movement of the position is adjusted as appropriate.

As a result, the cutting edge 10a of the band knife 10 on the upstream side can be moved in the direction opposite to the direction of the cutting edge 10a, so that the current cutting edge position du1 on the upstream side can be returned to the reference cutting edge position du0 on the upstream side. It becomes.

On the other hand, when the current cutting edge position du1 on the upstream side is separated from the reference cutting edge position du0 on the upstream side in the direction opposite to the direction of the cutting edge 10a, in other words, the cutting edge 10a of the band knife 10 on the upstream side is the cutting edge 10a. When the adjustment control unit 205 protrudes in the direction opposite to the direction of, the adjustment control unit 205 tilts the rotation shaft 11a1 of the pulley 11a on the upstream side inward toward the cutting edge 10a of the band knife 10 on the upstream side. The position of the regulation roller 13a on the upstream side may be moved in the same direction as the cutting edge 10a of the band knife 10.

Here, as described above, the degree of inclination of the rotation shaft 11a1 of the pulley 11a on the upstream side and the inclination of the rotary shaft 11a1 on the upstream side are determined according to the magnitude of the difference between the current cutting edge position du1 on the upstream side and the reference cutting edge position du0 on the upstream side. The degree of movement of the position of the regulation roller 13a is adjusted as appropriate.

As a result, the cutting edge 10a of the band knife 10 on the upstream side can be moved toward the cutting edge 10a, so that the current cutting edge position du1 on the upstream side can be returned to the reference cutting edge position du0 on the upstream side.

When the adjustment control unit 205 adjusts the inclination of the rotation shaft 11a1 of the pulley 11a on the upstream side and the position of the regulation roller 13a on the upstream side, for example, the measurement control unit 204 is notified by the position detection sensor 14a on the upstream side. Again, the position of the cutting edge 10a of the band knife 10 on the upstream side is measured as the current cutting edge position du1 on the upstream side. Then, the adjustment control unit 205 determines whether or not the measured current cutting edge position du1 has returned to the reference cutting edge position du0.

If the current cutting edge position du1 does not return to the reference cutting edge position du0, the adjustment control unit 205 again tilts the rotation shaft 11a1 of the pulley 11a on the upstream side due to the positional relationship between the current cutting edge position du1 and the reference cutting edge position du0. And the position of the regulation roller 13a on the upstream side are adjusted, and the position of the cutting edge 10a of the band knife 10 on the upstream side is finely adjusted.

On the other hand, when the current cutting edge position du1 returns to the reference cutting edge position du0, the adjustment control unit 205 completes the process. As a result, the position of the cutting edge 10a of the band knife 10 on the upstream side can be returned to the initial position.

In the above description, the band knife 10 on the upstream side has been described, but the same applies to the band knife 10 on the downstream side.

In this way, the adjustment control unit 205 returns the position of the cutting edge 10a of the band knife 10 on the upstream side to the reference cutting edge position du0 on the upstream side, and sets the position of the cutting edge 10a of the band knife 10 on the downstream side to the reference cutting edge position on the downstream side. By returning to dd0, the position of the cutting edge 10a of the band knife 10 returns to the position initially set at the start of slicing the workpiece W.

As a result, before slicing the workpiece, the position of the cutting edge 10a of the band knife 10 is confirmed by the position detection sensors 14a and 14b on the upstream and downstream sides, and if it deviates from the zero point position, the position is set to the zero point position. This makes it possible to keep the position of the cutting edge 10a of the band knife 10 on the upstream and downstream sides of the feed unit 12 constant. Further, after slicing the workpiece, the position of the cutting edge 10a of the band knife 10 is returned to the zero point position by the same method, so that the cutting edge 10a of the band knife 10 on the upstream / downstream side with respect to the feed unit 12 The position can be kept constant, and the thickness of the sheet-shaped work piece after slicing the work piece W can be made constant with high accuracy regardless of the position.

In particular, in the embodiment of the present invention, the position of the cutting edge 10a of the traveling band knife 10 is controlled separately and independently on the upstream side and the downstream side so as to be kept constant. Therefore, the workpiece W can be sliced with high thickness accuracy not only in the case of a hard material but also in the case of a soft material. Further, even when the thickness of the processed products W1 and W2 after slicing is thin, it is possible to slice with high thickness accuracy. The type of the workpiece W is not particularly limited, and examples thereof include leather, sponge, foam (foam), gel, rubber, and plastic.

By the way, in the embodiment of the present invention, after the adjustment control unit 205 returns the current blade edge position du1 to the reference blade edge position du0, the slice side extrusion member 15 is lightly brought into contact with the blade edge 10b of the band knife 10 to band. The blade edge 10b of the knife 10 may be regulated.

Here, when the slice-side extrusion member 15 is a rectangular plate material, one end 15a of the slice-side extrusion member 15 in the lateral direction is parallel to the straight line of the blade edge 10b of the traveling band knife 10 as shown in FIG. 11A. The slice-side extrusion member 15 comes into contact with the blade edge 10b of the traveling band knife 10 in a plane shape. On the other hand, on the other end 15b of the slice-side extrusion member 15 in the lateral direction, extrusion plates 15c1 and 15c2 on the upstream side and the downstream side are provided on the upstream side and the downstream side of the traveling band knife 10, respectively. The upstream side extrusion plate 15c1 pushes the position of the upstream side slice side extrusion member 15 of the other end 15b of the slice side extrusion member 15 in the lateral direction toward the blade edge 10b of the band knife 10. The slice-side extrusion member 15 on the upstream side can be brought into contact with the blade edge 10b of the band knife 10. Further, the downstream side extrusion plate 15c2 pushes the position of the downstream side slice side extrusion member 15 toward the blade edge 10b of the band knife 10 among the other end 15b of the slice side extrusion member 15 in the lateral direction. Then, the slice side extrusion member 15 on the downstream side can be brought into contact with the blade edge 10b of the band knife 10. In this way, by moving the extrusion plate 15c1 on the upstream side and the extrusion plate 15c2 on the downstream side independently and independently, the slice side extrusion member 15 is tilted with respect to the traveling direction of the band knife 10 and the band knife 10 is tilted. It becomes possible to come into contact with the blade base 10b.

Further, the extrusion plate 15c1 on the upstream side moves the wedge member 15d1 on the upstream side, which has a substantially right-angled triangle shape, in one direction opposite to the traveling direction of the band knife 10, so that the inclined surface of the wedge member 15d1 on the upstream side is formed. It is configured to extrude one end of the extrusion plate 15c1 on the upstream side in the longitudinal direction. As a result, the other end of the extrusion plate 15c1 on the upstream side in the longitudinal direction presses the extrusion member 15 on the slice side. Then, as shown in FIG. 11B, the slice-side extrusion member 15 extrudes the blade edge 10b of the traveling band knife 10 in the same direction as the blade edge 10a.

Here, the cutting edge 10a of the band knife 10 becomes smaller with time due to the pair of polishing grindstones 16a and 16b, and the length of the band knife 10 in the lateral direction gradually becomes shorter. Therefore, by allowing the position of the wedge member 15d1 on the upstream side to move in only one direction, the position of the extrusion member 15 on the slice side is basically set so that the blade edge 10b of the band knife 10 is in the same direction as the cutting edge 10a. It is moved in only one direction so as not to return in the opposite direction, and the position of the cutting edge 10a of the band knife 10 is prevented from moving in the direction opposite to the direction of the cutting edge 10a for some reason. The movement of the position of the wedge member 15d1 on the upstream side in only one direction can be released, and the fixation of the position of the slice side extrusion member 15 is released by releasing the wedge member 15d1 on the upstream side, and the slice side extrusion member 15 is released. It is possible to return the position of.

Further, in the above description, the extrusion of the extrusion plate 15c1 on the upstream side has been described, but the same applies to the downstream side. In the extrusion plate 15c2 on the downstream side, the wedge member 15d2 on the downstream side having a substantially right-angled triangle shape is used as the band knife 10. It is configured to move in one direction in the same direction as the traveling direction.

Since the slice-side extrusion member 15 has a configuration that only regulates the position of the blade edge 10b of the band knife 10, the adjustment control unit 205 tilts the rotation shafts 11a1 and 11b1 of the pulleys 11a and 11b on the upstream and downstream sides. When adjusting the positions of the regulation rollers 13a and 13b on the upstream and downstream sides, the position of the slice side extrusion member 15 is released from being fixed, and after the adjustment, the slice side extrusion member 15 is moved to the blade edge of the band knife 10. The blade edge 10b of the band knife 10 is regulated by abutting on the 10b.

By the way, in the embodiment of the present invention, a total of two regulation rollers 13a and 13b on the upstream and downstream sides are provided on the upstream and downstream sides of the traveling band knife, but the number of regulation rollers is increased to two or more. It doesn't matter. By increasing the number of regulating rollers, the position of the cutting edge 10a of the band knife 10 can be kept stable and constant from the upstream side to the downstream side.

Further, in the embodiment of the present invention, the position of the cutting edge 10a of one band knife 10 hung between the pair of pulleys 11a and 11b is set above the inclination of the rotation shafts 11a1 and 11b1 of the pair of pulleys 11a and 11b. It was kept constant by adjusting the positions of the regulation rollers 13a and 13b on the downstream side. Here, in order to make the position of the cutting edge 10a of one band knife 10 constant, it is also important to make the position of the other band knife 10 hung between the pair of pulleys 11a and 11b constant. Therefore, in order to keep the position of the other band knife 10 constant, it is preferable to include a pair of polishing grindstones 16a and 16b, a polishing side extrusion member 17, and a pair of regulating rollers 18a and 18b. As a result, the position of the cutting edge 10a of one of the band knives 10 can be kept constant with high accuracy.

Further, in the embodiment of the present invention, the delivery unit 12 is configured by using a pair of feed rollers 12a and 12b, but other configurations may be used. For example, as shown in FIG. 12A, the delivery unit 12 may use a lower feed roller 12a and a pressing member 12d arranged above the lower feed roller 12a at a predetermined interval b so as to face each other. I do not care. The pressing member 12d is formed in a rectangular parallelepiped shape, and is fixed substantially parallel to the longitudinal direction of the lower feed roller 12a (the longitudinal direction of the band knife 10). Then, when the workpiece W enters the delivery unit 12, it enters between the lower feed roller 12a and the pressing member 12d and is pressed against the lower feed roller 12a. In this state, the lower feed roller 12a rotates toward the cutting edge 10a of the traveling band knife 10, so that the pressed workpiece W hits the cutting edge of the band knife 10 and is sliced into a sheet.

Here, when the delivery unit 12 is composed of the lower feed roller 12a and the pressing member 12d, in order to make the thickness of the workpieces W1 and W2 after slicing constant with high accuracy regardless of the position. It is necessary to keep the position of the cutting edge 10a of the band knife 10 constant with respect to the lower delivery roller 12a.

For example, as shown in FIG. 12B, the distance x0 between the corner portion 12d1 of the pressing member 12b facing the lower feed roller 12a and appearing in the same direction as the cutting edge 10a of the band knife 10 and the cutting edge 10a of the band knife 10. Need to be kept constant.

In the embodiment of the present invention, even in this case, the traveling band is adjusted by adjusting the inclination of the rotation shafts 11a1 and 11b1 of the pair of pulleys 11a and 11b and the positions of the regulation rollers 13a and 13b on the upstream and downstream sides. It is possible to keep the position of the cutting edge 10a of the knife 10 constant on the upstream side and the downstream side.

Further, in the embodiment of the present invention, the positional relationship between the regulation roller 13a on the upstream side and the position detection sensor 14a on the upstream side is not particularly limited, but for example, as shown in FIGS. 1, 3, and 10, upstream. It is preferable that the regulation roller 13a on the side is provided on the downstream side in the traveling direction of the band knife 10 with respect to the position detection sensor 14a on the upstream side. As a result, when the adjustment control unit 205 detects the position of the cutting edge 10a of the band knife 10 on the upstream side by the position detection sensor 14a on the upstream side, the upstream side existing on the downstream side of the position detection sensor 14a on the upstream side The position of the cutting edge 10a of the band knife 10 on the upstream side can be immediately adjusted by the regulation roller 13a. Therefore, the result after detection can be immediately reflected in the adjustment, which contributes to the speeding up of the adjustment. The same applies to the positional relationship between the downstream regulation roller 13b and the downstream position detection sensor 14b, and the downstream regulation roller 13b is more in the traveling direction of the band knife 10 than the downstream position detection sensor 14b. It is preferable that it is provided on the downstream side of the.

Further, in the embodiment of the present invention, one band knife 10 running between the pair of pulleys 11a and 11b is used as an upper band knife, and the upper band knife 10 is provided with a pair of guide blades 10c1 and 10c2. The slicing place was used, the other band knife 10 was used as the lower band knife, and the lower band knife 10 was provided with a pair of polishing grindstones 16a and 16b to be used as the polishing place. The band knife can be used as the slicing place and the configuration can be reversed.

Further, in the embodiment of the present invention, the slicer 1 is configured to include each control unit, but a program for realizing each control unit may be stored in a storage medium and the storage medium may be provided. .. In this configuration, a program is read by a device, and the device realizes each control unit. In that case, the program itself read from the recording medium exerts the effects of the present invention. Further, it is also possible to provide as a method of storing the steps executed by each control unit in the storage medium.

Examples, comparative examples, and the like in the embodiments of the present invention will be specifically described below, but the application of the present invention is not limited to the present examples and the like.

<Example>
First, a band knife type slicer 1 as an example was manufactured based on FIGS. 1 to 11. As a configuration of the slicer 1 of the embodiment, as shown in FIG. 13, the maximum slice width was set to 600 mm for the pair of guide blades 10c1 and 10c2, and the width of the material of the work piece was set to 550 mm. In the embodiment, the upstream / downstream side regulation rollers 13a and 13b and the upstream / downstream side position detection sensors 14a and 14b are provided, and the rotation shafts 11a1 and 11b1 of the pair of pulleys 11a and 11b are tilted and the upstream / downstream side is regulated. The positions of the rollers 13a and 13b are adjustable.

<Comparison example>
As a configuration of the slicer of the comparative example, as shown in FIG. 13, the maximum slice width was set to 450 mm for the pair of guide blades 10c1 and 10c2, and the width of the material of the work piece was set to 400 mm. In the comparative example, the regulation roller 13b on the downstream side is provided, but the regulation roller 13a on the upstream side and the position detection sensors 14a and 14b on the upstream and downstream sides are not provided, and the rotation shafts 11a1 of the pair of pulleys 11a and 11b are provided. , 11b1 tilt and the positions of the regulation rollers 13a and 13b on the upstream and downstream sides were not adjustable. Other than that, the same members as in the examples were used.

<Evaluation>
Using the slicers of Examples and Comparative Examples, a polyurethane foam sheet (workpiece) having a thickness of 2 mm was sliced to produce a polyurethane foam sheet (workpiece) having a thickness of 0.3 mm.

In the slicer of the embodiment, when the thickness of the workpiece produced by slicing the workpiece reaches 0.3 mm, the position of the cutting edge 10a of the band knife 10 on the upstream side is set to the reference cutting edge position du0 on the upstream side. Then, the position of the cutting edge 10a of the band knife 10 on the downstream side was set to the reference cutting edge position dd0 on the downstream side.

Then, as shown in FIG. 14, the polyurethane foam sheet (workpiece) was continuously sliced with a slicer of Example or Comparative Example, and then the position of the cutting edge 10a of the band knife 10 was adjusted. In the slicer of the embodiment, the regulation rollers 13a and 13b on the upstream and downstream sides and the position detection sensors 14a and 14b on the upstream and downstream sides are used to tilt the rotation shafts 11a1 and 11b1 of the pair of pulleys 11a and 11b and to perform upstream and downstream. By adjusting the positions of the regulation rollers 13a and 13b on the side, the positions of the cutting edge 10a of the band knives 10 on the upstream side and the downstream side were adjusted. On the other hand, in the slicer of the comparative example, the position of the cutting edge 10a of the band knife 10 was manually adjusted. Then, the slicer of the adjusted example or comparative example was used to slice the workpiece again, and the thickness of the sliced workpiece was measured. The thickness of the work piece was first measured at three points at equal intervals with respect to the slice width, and repeated three times at equal intervals with respect to the slice length to measure a total of nine points. A commercially available thickness measuring machine was used for measuring the thickness. Next, the thickness accuracy was calculated by taking the maximum and minimum values for the target thickness of 0.3 mm from the thickness of 9 points.

As a result, as shown in FIG. 14, the thickness accuracy of the work piece in the slicer of the comparative example was ± 0.05 mm, while the thickness accuracy of the work piece in the slicer of the example was surprisingly high. It was ± 0.03 mm, and a thickness accuracy extremely better than that of the comparative example was obtained. In particular, the maximum slice width of the slicer of the example is set longer than that of the comparative example, and in general, the longer the maximum slice width, the worse the thickness accuracy. This time, in the example in which the maximum slice width is long, significantly better thickness accuracy was obtained than in the comparative example in which the maximum slice width was short, because the position of the cutting edge 10a of the band knife 10 with respect to the delivery unit 12 was obtained. It means that it was kept constant with high accuracy. From this, it was found that the slicer of the example can slice with high thickness accuracy at any position of the work piece.

Further, the workpiece is continuously sliced with the slicers of Examples and Comparative Examples, and then the position of the cutting edge 10a of the band knife 10 is adjusted again by the same method as described above, and then again, the Examples and The work piece was sliced with the slicer of the comparative example. The thickness of the work piece after slicing was calculated by the same method as described above, and the thickness accuracy was calculated as the repeat thickness accuracy indicating reproducibility. The adjustment of the position of the cutting edge 10a of the band knife 10 was repeated three times thereafter, and the thickness accuracy was calculated repeatedly for each adjustment.

As a result, as shown in FIG. 14, the repeat thickness accuracy of the workpiece in the slicer of the comparative example is ± 0.06 mm for the first time, ± 0.05 mm for the second time, and ± 0.07 mm for the third time, and the repeat thickness. There was a variation in accuracy. On the other hand, the repeat thickness accuracy of the workpiece in the slicer of the example is ± 0.03 mm for the first time, ± 0.03 mm for the second time, and ± 0.03 mm for the third time. Surprisingly, the repeat thickness accuracy is It was kept constant three times. This shows that the slicer of the embodiment keeps the positions of the cutting edge 10a of the band knives 10 on the upstream side and the downstream side constant with high accuracy. Therefore, it was found that the slicer of the example can slice the workpiece with high thickness accuracy even if it is sliced repeatedly.

As described above, the slicer and slicing method according to the present invention are useful not only for soft materials but also for slicers and slicing methods for slicing all kinds of workpieces, and even if they are continuously sliced, they have high thickness accuracy. It is effective as a slicer and a slicing method capable of slicing a work piece with.

1 Slicer 10 Band knife 11a, 11b Pair of pulleys 12 Sending unit 13a, 13b Upstream and downstream side regulation rollers 14a, 14b Upstream and downstream side position detection sensor 15 Slice side extrusion member 201 Rotation control unit 202 Setting control unit 203 Transmission control unit 204 Measurement control unit 205 Adjustment control unit

Claims (4)

A pair of pulleys around which an endless band knife is wound and arranged so that each of the rotation axes is inclined inward toward the cutting edge of the band knife.
A pair of guide blades sandwiching one band knife running between the pair of pulleys,
A feed roller facing the cutting edge of a traveling band knife traveling between the pair of guide blades and having a rotation axis arranged parallel to the slice direction of the cutting edge line of the traveling band knife.
A regulating roller on the upstream and downstream sides, which is provided on the upstream and downstream sides of the traveling band knife and rotates while contacting only the double-edged surfaces constituting the cutting edges of the double-edged blades of the traveling band knife.
An upstream / downstream position detection sensor provided on the upstream / downstream side of the traveling band knife and detecting the position of the cutting edge of the traveling band knife.
It is a slicer equipped with
By rotating any of the pair of pulleys, the traveling band knife is sent out toward the cutting edge and travels between the pair of guide blades while being brought into contact with the regulation rollers on the upstream and downstream sides. Rotation control unit to make
A setting control unit that sets the position of the cutting edge on the upstream / downstream side of the traveling band knife detected based on the position detection sensor on the upstream / downstream side as a reference cutting edge position on the upstream / downstream side.
By rotating the feed roller to which the work piece is pressed, the work piece is sent out toward the cutting edge of the traveling band knife and sliced into a sheet.
Before and after the slice, a measurement control unit that measures the position of the cutting edge on the upstream / downstream side of the traveling band knife detected based on the position detection sensor on the upstream / downstream side as the measuring cutting edge position on the upstream / downstream side.
An adjustment control unit that returns the current cutting edge position on the upstream / downstream side to the reference cutting edge position on the upstream / downstream side by adjusting the inclination of the rotation shafts of the pair of pulleys and the position of the regulating roller on the upstream / downstream side. ,
Slicer with. The adjustment control unit
When the current cutting edge position is separated from the reference cutting edge position in the direction of the cutting edge, the rotation axis of the corresponding pulley may be inclined outward toward the cutting edge of the band knife. The position of the regulation roller is moved in the same direction as the blade edge of the band knife.
When the current cutting edge position is separated from the reference cutting edge position in the direction opposite to the direction of the cutting edge, the rotation axis of the corresponding pulley is inclined inward toward the cutting edge of the band knife. Or, the position of the corresponding regulation roller is moved in the same direction as the cutting edge of the band knife.
The slicer according to claim 1. A pair of polishing grindstones provided so as to be in contact with both blade surfaces of the other band knife at a position facing the other band knife hung between the pair of pulleys.
A polishing side extrusion member provided at a position facing the pair of polishing grindstones with respect to the other band knife and in contact with the blade edge of the other band knife.
A pair of polishing side regulation rollers provided on the upstream and downstream sides of the other band knife and rotating while abutting only on both blade surfaces of the other band knife.
The slicer according to claim 1 or 2. A pair of pulleys around which an endless band knife is wound and arranged so that each of the rotation axes is inclined inward toward the cutting edge of the band knife.
A pair of guide blades sandwiching one band knife running between the pair of pulleys,
A feed roller facing the cutting edge of a traveling band knife traveling between the pair of guide blades and having a rotation axis arranged parallel to the slice direction of the cutting edge line of the traveling band knife.
A regulating roller on the upstream and downstream sides, which is provided on the upstream and downstream sides of the traveling band knife and rotates while contacting only the double-edged surfaces constituting the cutting edges of the double-edged blades of the traveling band knife.
An upstream / downstream position detection sensor provided on the upstream / downstream side of the traveling band knife and detecting the position of the cutting edge of the traveling band knife.
It is a slicer slicing method equipped with
By rotating any of the pair of pulleys, the traveling band knife is sent out toward the cutting edge and travels between the pair of guide blades while being brought into contact with the regulation rollers on the upstream and downstream sides. Rotation control step to make
A setting control step for setting the upstream / downstream side cutting edge position of the traveling band knife detected based on the upstream / downstream side position detection sensor as the upstream / downstream side reference cutting edge position, and
A delivery control step in which the work piece is fed toward the cutting edge of the traveling band knife by rotating the feed roller to which the work piece is pressed and sliced into a sheet shape.
Before and after the slicing, a measurement control step of measuring the position of the cutting edge on the upstream / downstream side of the traveling band knife detected based on the position detection sensor on the upstream / downstream side as the measuring cutting edge position on the upstream / downstream side.
An adjustment control step that returns the current cutting edge position on the upstream / downstream side to the reference cutting edge position on the upstream / downstream side by adjusting the inclination of the rotation shafts of the pair of pulleys and the position of the regulating roller on the upstream / downstream side. ,
Slicing method with.