JP4757463B2 - Bread cutting equipment - Google Patents

Description

The present invention relates to a bread cutting device provided with a rotating blade for cutting various articles of bread .

For example, in the case of slicing 1 to 8 breads of bread, there are a method in which an artisan cuts with a knife and a method using a bread cutting device. Since it is complicated and inefficient for a craftsman to cut with a kitchen knife, it is common to use a bread cutting device to cut quickly or in large quantities. Examples of the bread cutting device include a device having a saw blade and a device having a rotating disk-shaped blade.
When slicing bread, the method of cutting and waiting until the baked bread is cooled and hardened takes time and does not meet consumer demand because the taste of the bread falls. Therefore, it is necessary to cut the bread early after baking. However, freshly baked hot bread is usually in a soft state, and if it is cut at this time, it is difficult to cut it with a uniform thickness, such as breaking the cut surface of the bread.
In order to cut freshly baked bread neatly with a bread cutting device, there is a method of sharpening and cutting the blade edge of the blade or heating the blade edge of the blade (for example, see Patent Document 1). Moreover, although the gluten contained in the bread material adheres to the blade when the bread is cut, the adhesion can be prevented by heating the blade. For these reasons, when cutting a soft bread, a method of heating the blade edge of the blade is effective, and the optimum temperature required for the blade edge is 80 ° C. to 120 ° C.
As a method for heating the blade, there is a method in which heat is applied to the blade by applying heat from a nichrome wire or a burner.
Japanese Utility Model Publication No. 7-27796

However, according to the conventional method for heating a blade, it is difficult to manage the temperature of the blade to be heated, and the running efficiency increases because the heating efficiency is low. In addition, when a conventional heating means is provided in a bread cutting device having a movable cutting tool, there is a problem that the device becomes large and cannot be heated efficiently.
Further, according to these heating means, not only the blade but also the surrounding air in contact with the heating means is heated, so that there is a problem in that the working environment around the bread cutting becomes high and the working environment is deteriorated.

The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to provide a bread cutting device that can cut a heating tool while suppressing an increase in the temperature around it.

In order to achieve the above object, in the bread cutting device according to the present invention, a rotating circular blade is provided , and in the bread cutting device for extruding and slicing the bread in the thickness direction, the bread cutting device is arranged at an acute angle and cut. A bread guide for guiding the bread is provided, and the bread side portion of the blade edge is arranged to protrude from the bread side end of the bread guide to the bread side , heating the blade edge of the blade in a non-contact manner, and from the outer periphery of the blade A heating coil having a large outer diameter and a substantially arc shape is provided along the cutting edge so as to heat at least the cutting edge, and the heating temperature in the vicinity of the cutting edge heated at a position opposite to the heating coil of the blade is non-contacted. A temperature sensor for sensing and a control panel for controlling the temperature of the heating coil are provided. The control panel includes an inverter for changing the time for energizing the heating coil and a blade sensed by the temperature sensor. Uptake temperature information, on the inverter - are a control device for adjusting the temperature of the blade within a predetermined range by turning off control, comprising the.
In the bread cutting device according to the present invention, the rotating blade in the magnetic field range can be heated by suppressing the temperature rise in the vicinity by Joule heat generated by the electromagnetic induction action.

And the efficient heat processing and cutting | disconnection effect | action can be exhibited by heating the blade edge | tip which cut | disconnects articles | goods.

Further , the portion other than the cutting region of the blade edge can be heated and removed without interfering with the rotation axis of the blade.

According to the bread cutting device of the present invention, since only the blade is heated by the heating coil and the surrounding air is not warmed, the temperature rise around the bread cutting work area is suppressed, and the working environment is improved. Moreover, since the heating efficiency is good, the running cost is small, and the increase in size of the apparatus can be suppressed.

Hereinafter, a bread cutting device according to an embodiment of the present invention will be described with reference to the drawings. 1 and 2 are a plan view and a front view, respectively, of a bread cutting device provided with a heating coil according to an embodiment of the present invention, FIG. 3 is a cross-sectional view of the bread cutting device shown in FIG. It is a BB line sectional view similarly.
For example, in the case of bread, the bread cutting device 1 slices and cuts a bowl into about 6 to 8 pieces. 1, the bread cutting device 1 sets a cutting mechanism R that cuts the bread P with a rotating blade, a reciprocating feed mechanism S that reciprocates in the arrow direction D in order to cut the bread P, and a bread cutting thickness. Electromagnetic induction provided with a thickness adjusting mechanism T to be adjusted, an extrusion mechanism U that sequentially sends the pan P to the cutting side in conjunction with the movement of the thickness adjusting mechanism T, and a heating coil that heats the blade in a non-contact manner by temperature control And a heating mechanism V.

The cutting mechanism R is demonstrated based on FIG. 1, FIG.
The bread cutting device 1 includes a base frame 2, a disk-shaped round blade 5 that rotates with a circular blade rotation shaft 4 supported by a support base 3 fixed perpendicularly to the base frame 2, and rotational power to the round blade 5. A round blade drive motor M1 attached to the support 3 is provided for transmission. The round blade drive motor M <b> 1 is attached in a direction in which the motor rotation shaft 6 is orthogonal to the support 3. As shown in FIG. 1, the motor rotating shaft 6 of the round blade driving motor M1 penetrates the support base 3 in a rotatable manner, and is provided with a motor-side pulley 7 at the tip thereof.
The round blade 5 provided with a circular cutting edge 5 a at the peripheral edge is provided in parallel to the support base 3, and the round blade rotating shaft 4 of the round blade 5 is orthogonal to the support base 3 and supported by a bearing 8. The round blade 5 is attached to the round blade rotating shaft 4 through a circular member 9, and the round blade rotating shaft 4 is provided with a round blade side pulley 10. The motor side pulley 7 and the round blade side pulley 10 are connected by a drive belt 11, and the rotational power of the round blade driving motor M <b> 1 is transmitted to the round blade 5 via the round blade side pulley 10.

Next, the reciprocating feed mechanism S will be described based on FIG. 1, FIG. 3, and FIG.
As shown in FIGS. 1 and 4, the reciprocating mechanism S is provided with a supply tray 12 that accommodates the bread P at a cutting position. The supply tray 12 is vertically long and has a groove shape with an open top surface, and both end surfaces in the longitudinal direction are open. The supply tray 12 is arranged such that its longitudinal direction is perpendicular to the rotation surface of the round blade 5, and the rotation center of the round blade 5 is set at a height that is approximately the same as the approximate center of the pan P. As shown in FIG. 4, the inner surface of the supply tray 12 has an inclined side surface 12a and an inclined lower surface 12b inclined in the clockwise direction, and an inner surface guide 12c on the surface facing the inclined side surface 12a. . The inclined side surface 12 a and the inclined lower surface 12 b are provided with two rows of rollers 13 that rotate so as to send out the bread P in the longitudinal direction of the supply tray 12.
Further, the reciprocating feed mechanism S includes two rows of rail bases 14 which are orthogonal to the longitudinal direction of the supply tray 12 and parallel to each other on the base gantry 2, and guide rails 15 are fixed to the upper surface of each rail base 14. . The feed motor M <b> 2 arranged between the two rows of guide rails 15 is fixed to the base frame 2 so that the rotation axis is parallel to the guide rails 15. A ball screw 16a is connected to the rotating shaft of the feed motor M2, and both ends of the ball screw 16a are supported by bearings 17 fixed to the base frame 2 (see FIGS. 3 and 4).
On the outer lower surface of the supply tray 12, there are provided two movable members 18 that slide along two rows of guide rails 15, and a joint member 19 that is attached between the two movable members 18. A female thread portion 16 b that meshes with the ball screw 16 a is fixed to the joint member 19. As a result, the supply tray 12 reciprocates in the left-right direction shown in FIG. 1 by forward and reverse rotation of the feed motor M2.

Next, the thickness adjusting mechanism T will be described with reference to FIGS.
On the extended line of the round blade 5, there is a two-dot chain pan cutting line L shown in FIG. 1.
As shown in FIG. 1, the thickness adjusting mechanism T is attached to the thickness adjusting motor M3 fixed to the base gantry 2 and having a rotating shaft in a direction orthogonal to the bread cutting line L, and the rotating shaft of the thickness adjusting motor M3. And a ball screw 20a to which rotational power is transmitted. A female screw portion 20b meshing with the ball screw 20a is fixed to a flat plate-like support plate 21 orthogonal to the ball screw 20a, and is supported by the ball screw 20a so as to be movable in the E direction. The rotation shaft of the thickness adjusting motor M3 is rotatably supported by a bearing 22 fixed to the base frame 2.
A contact plate 23 on a flat plate, which is determined as a cutting position by contacting the tip of the bread P accommodated in the supply tray 12, is located on the back side of the round blade 5, and is attached to the support plate 21 via a box-shaped connection member 24. It is fixed. The backing plate 23 reciprocates between the pan cutting line L and the two-dot chain line in FIG. 1 by forward and reverse rotation of the thickness adjusting motor M3. This is the range for adjusting the cutting thickness.
The tips of two rods 26 parallel to the ball screw 20a are fixed to the support plate 21 on both sides of the ball screw 20a being supported. The rod 26 is supported by the rod body 27 so as to be slidable in a direction parallel to the ball screw 20 a, and the rod body 27 is fixed to the base mount 2.
The cut bread P is fed by the reciprocating feed mechanism S, and a bread guide 28 that guides the bread cut by the round blade 5 is provided in the gap between the bread cutting line L and the contact plate 23. Is provided. The flat pan guide 28 is provided perpendicular to the base frame 2 so as to form an acute angle with respect to the round blade 5 in a plan view of FIG. 1 around the boundary between the round blade 5 and the contact plate 23.

Next, the extrusion mechanism U is demonstrated based on FIG.1, FIG.2, FIG.3.
The supply tray 12 includes a rectangular flat plate side support base 29 on the right side surface shown in FIG. As shown in FIG. 3, a ball screw 31 a is provided on the side support base 29 in the longitudinal direction, and both ends thereof are supported by bearings 30 fixed to the side support base 29. Further, a guide rail 32 is provided in the longitudinal direction of the side support base 29, and the guide rail 32 has a movable joint 34 that reciprocates in the arrow direction G of FIG. 3 along the longitudinal direction. The movable joint 34 connects a female thread portion 31 b that meshes with the ball screw 31 a via a joint member 33. The overhang member 35 fixed to the upper end portion of the joint member 33 enters the inner side that accommodates the bread P from the upper part of the supply tray 12, and is provided with a flat plate-like extrusion guide 36 at the tip thereof. The extrusion guide 36 pushes the rear end of the pan P toward the contact plate 23 side.
A screw-side pulley 37 is provided at the right end of the ball screw 31a shown in FIG. Rotational power is transmitted to the screw-side pulley 37 from a motor-side pulley 38 provided on the rotation shaft of the extrusion motor M4 via a drive belt 39. The extrusion motor M4 is interlocked when the thickness adjusting motor M3 rotates in the forward direction, so that the contact plate 23 moves the length of one piece of bread in the E direction, and at the same time, the extrusion guide 36 moves in the same direction toward the contact plate 23. Move by the amount. During movement when the moved contact plate 23 returns to the bread cutting line L, that is, during reverse rotation of the thickness adjustment motor M3, the extrusion motor M4 does not interlock with the thickness adjustment motor M3.
In addition, one of the wire connecting members 40 is fixed to the base gantry 2 and the other is attached to the lower portion of the supply tray 12 to supply electricity to the extrusion motor M4.

Next, the electromagnetic induction heating mechanism V will be described based on FIG. 5, FIG. 6, FIG. 7, and FIG. 5 is a plan view of the heating coil of the electromagnetic induction heating mechanism V, FIG. 6 is a sectional view taken along the line CC of the heating coil shown in FIG. 5, FIG. 7 is a side view of the same, and FIG. It is.
The electromagnetic induction heating mechanism V includes a substantially arc-shaped heating coil 41 in which an electric wire is wound in a spiral shape, and the heating coil 41 is covered with an insulating material such as a resin molding material.
An insulating flat plate 42 made of a resin insulating material is attached to the support blade 3 on the round blade 5 side, and the heating coil 41 is provided on the surface of the insulating flat plate 42 on the round blade 5 side. Therefore, the heating coil 41 is arranged at a close position where it does not contact the round blade 5. As shown in FIG. 5, the range in which the round blade 5 is heated by the heating coil 41 corresponds to the circular blade surface of the round blade 5 and the substantially semicircle of the blade tip 5a. The heating coil 41 has a larger outer diameter than the outer periphery of the round blade 5, and is disposed so as to face at least the cutting edge 5a. And the heating coil 41 is arrange | positioned in the position remove | deviated from the bread cutting | disconnection area | region by the blade edge | tip 5a.
Further, as shown in FIG. 8, the electromagnetic induction heating mechanism V includes a temperature sensor 43 that detects the heating temperature in the vicinity of the blade edge 5a of the heated round blade 5 in a non-contact manner, and a control panel 46 that controls the temperature of the heating coil 41. It is configured. The control panel 46 takes in the temperature information of the round blade 5 sensed by the inverter 44 that changes the time to energize the heating coil 41 and the temperature sensor 43, and controls the temperature of the round blade 5 by on-off control of the inverter 44. A control device 45 that adjusts within a predetermined range is accommodated. As shown in FIG. 7, the temperature sensor 43 is provided at a position close to the cutting edge 5 a of the round blade 5 in a non-contact manner. The electric wire forming the heating coil 41 is extended from the heating coil 41 and connected to the inverter 44.

The bread cutting device according to the present embodiment has the above-described configuration. Next, a bread cutting method will be described with reference to the drawings.
The bread P is supplied from the upper part of the supply tray 12, and after confirming the setting state, the cutting operation of the bread P is started. Here, in the supply tray 12, the position of the pan P is fixed by the inclined side surface 12a, the inclined bottom surface 12b, and the side surface guide 12c on the inner side surface, and the pan P is prevented from being displaced during cutting. Further, since the roller 13 is provided inside the supply tray 12, the pan P can move smoothly until the pan P in the supply tray 12 is pressed against the contact plate 23.
The thickness of the bread to be cut can be managed by setting the number of rotations of the thickness adjusting motor M3 in the thickness adjusting mechanism T. The initial position of the contact plate 23 is adjusted in advance according to the set thickness of the pan P, and the distance from the round blade 5 is set.
First, simultaneously with the movement of the contact plate 23 in the arrow direction E in FIG. 1, the push-out guide 36 pushes in until the front end surface of the pan P comes into contact with the contact plate 23 set in the two-dot chain line in FIG. The cutting range of the bread P is a portion entering the space 25 sandwiched between the bread cutting line L and the surface of the abutting plate 23.

Next, the effect | action of the electromagnetic induction heating mechanism V is demonstrated based on FIG.5, FIG.6, FIG.7 and FIG.
As shown in FIG. 5, when the electric wire forming the heating coil 41 is energized, it is excited, a magnetic field is generated in a direction orthogonal to the surface of the heating coil 41, and the blade surface of the round blade 5 and the blade edge 5a in the magnetic field range are Joule heat. Is heated by. 5 and 6, the heating coil 41 is substantially arc-shaped, and the round blade 5 has a heating range that overlaps only one half circle on the heating coil 41, but the round blade 5 is completely rotated by the rotation of the round blade 5. It is possible to maintain a heated state over the circumference. Here, since the resin flat plate 42 side of the heating coil 41 is an insulating material, the side of the support base 3 is not heated.
From FIG. 8, the temperature information of the round blade 5 sensed by the temperature sensor 43 is taken into the control device 45, and the inverter 44 is turned on so that the temperature of the round blade 5 becomes an appropriate temperature for cutting the pan P. -Control off. Thereby, the energization time sent to the heating coil 41 from the inverter 44 can be changed, and the heating temperature of the round blade 5 is adjusted.

  Next, when pan cutting is started, the round blade driving motor M1 is rotated at the same time, and the round blade 5 is rotated in the direction of cutting the pan P from above, that is, in the arrow direction F in FIG. Since the cutting position of the round blade 5 is fixed, the feed tray 12 moves to the position of the two-dot chain line shown in FIG. The bread is cut. The cut bread P is cut out of the backing plate 23 along the bread guide 28. In this case, since the blade edge 5a is heated moderately, gluten does not adhere.

After the first pan is cut, when the supply tray 12 is at the position of the two-dot chain line shown in FIG. 4, the contact plate 23 returns to the position of the bread cutting line L by the reverse rotation of the feed motor M3. At the time of reverse rotation of the feed motor M3, the push guide 36 does not move and stops because it does not interlock with the push motor M4.
When the supply tray 12 moves to the right in FIG. 4 and returns to the original position, the contact plate 23 and the extrusion guide 36 move together and move downward as shown in FIG. And enters the contact plate 23. Then, the cutting of the second sheet is started in the same manner as the cutting procedure of the first sheet. By these procedures, cutting is repeated as many times as the number of cut sheets. As the cutting operation proceeds, the thickness of the pan P remaining on the supply tray 12 decreases, and the extrusion guide 36 moves to the contact plate 23 side. When all the cutting of the pan P in the supply tray 12 is completed, the extrusion motor M4 rotates in the reverse direction, and the extrusion guide 36 returns to the start position.

As described above, according to the embodiment, the round blade 5 that is a rotating body can be heated in a non-contact manner by electromagnetic induction heating using the heating coil 41. Moreover, the bread does not adhere to the round blade 5, and the freshly baked hot bread can be cut cleanly.
In the electromagnetic induction heating, only the round blade 5 which is a metal is a heating target, and the air in contact with the heating coil 41 is not heated, so that the temperature rise around the cutting work can be suppressed and the working environment is improved. And, the electromagnetic induction heating has high heating efficiency and can reduce the running cost. Also, since the heating coil 41 has a substantially arc shape, the round blade 5 can be heated without interfering with the rotary shaft 4. Can be attached. Therefore, the heating coil 41 can be easily removed. And the enlargement of an apparatus can be suppressed.

As mentioned above, although embodiment of the bread cutting device concerning this invention was described, this invention is not limited to above-described embodiment, It can change in the range which does not deviate from the meaning.
For example, although the heating object is the round blade 5 in the above-described embodiment, it is not limited to the shape of the blade, and may be any rotating blade that requires heating.
Furthermore, the shape of the heating coil 41 is also arbitrary, and the rotating cutting edge may be heated.

It is a top view of the bread cutting device by an embodiment of the invention. It is a front view of the bread cutting device shown in FIG. It is the sectional view on the AA line of the bread cutting device shown in FIG. It is a BB sectional view of the bread cutting device shown in FIG. It is related with the bread cutting device by embodiment, Comprising: It is a top view of the heating coil shown in FIG. It is CC sectional view taken on the line of the heating coil shown in FIG. FIG. 6 is a side view of the heating coil shown in FIG. 5. It is a temperature control circuit diagram in the bread cutting device by an embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Pan cutting device 2 Base mount 3 Support stand 5 Round blade (cutlery)
12 supply tray 23 backing plate 36 extrusion guide 41 heating coil 43 temperature sensor 46 control panel M1 round blade drive motor M2 feed motor M3 thickness adjustment motor M4 extrusion motor P pan S reciprocating feed mechanism T thickness adjustment mechanism U Extrusion mechanism V Electromagnetic induction heating mechanism

Claims (1)

In a bread cutting device that is provided with a rotating circular blade and extrudes and slices bread in the thickness direction ,
A pan guide is provided to guide the cut bread arranged at an acute angle with respect to the cutter, and the pan side portion of the blade tip is disposed to protrude to the pan side from the pan side end of the pan guide,
While heating the blade edge of the blade in a non-contact manner, a heating coil having a larger outer diameter than the outer periphery of the blade and having a substantially arc shape along the blade edge so as to heat at least the blade edge is provided,
A temperature sensor that senses the heating temperature in the vicinity of the cutting edge heated at a position opposite to the heating coil of the blade, and a control panel that controls the temperature of the heating coil;
The control panel
An inverter for changing a time for energizing the heating coil;
A control device that takes in temperature information of the blade sensed by the temperature sensor and adjusts the temperature of the blade within a predetermined range by controlling the inverter on and off;
A bread cutting device comprising:

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