JP4148929B2 - Bread cutting equipment - Google Patents

Description

  The present invention relates to an apparatus for cutting bread such as bread and rolls.

  2. Description of the Related Art Conventionally, bread pieces obtained by cutting so-called ear parts from bread that has been baked greatly into a rectangular parallelepiped shape and further slicing the bread pieces are packaged and sold as sandwich bread. Conventionally, when a sandwich bread is obtained by cutting a bread loaf in this way, it is performed manually using a cutting device having a round blade, or a reciprocating blade having a saw-shaped end banded blade with a large number of blades arranged. It is carried out by mechanical work using a cutting device.

  More specifically, for example, when a round blade is used, while pressing the front portion (one end portion in the longitudinal direction) of the bread on the standing plate, the normal plate is moved forward from the plate. The bread is brought close to a round blade fixedly provided at a predetermined distance and sliced. This process is repeated to obtain a large number of sliced bread pieces, and then the bread pieces are cut out by using other cutting means to produce sandwich bread.

  On the other hand, as the reciprocating cutting device, a reciprocating cutting device having a configuration in which a large number of end-striped blades that reciprocally move in parallel is used. A rectangular parallelepiped bread is obtained by first cutting the ears on each side and then simultaneously slicing a plurality of sandwich breads using this reciprocating cutting device.

  By the way, when cutting bread using a cutting device having a round blade as described above, since the contact area between the bread and the round blade is large, the soft bread is easily deformed by contact with the rotating round blade. Therefore, as described above, it is necessary to slice the ear portion before excision, and then to excise the ear portion. However, it is inefficient to excise the ear portion from each of a large number of bread pieces after slicing, compared to the case of cutting the ear portion from a rectangular parallelepiped bread. In addition, since the ear portion is always exposed to the outside immediately after the bread is baked, it is desirable to cut it out as early as possible from a hygienic viewpoint in the process of manufacturing sandwich bread from the bread.

  On the other hand, when the bread is cut using the reciprocating cutting device, the contact area between the bread and the endless blade is relatively small, so even a relatively soft bread is not easily deformed during cutting. Therefore, as described above, the ear portion can be sliced after first being excised. However, since the end band blade is reciprocated and cut, there is a problem that the cut surface of the bread becomes relatively rough. And there exists a request | requirement of obtaining the smoother and finer cut surface with respect to such a subject, and raising the commercial value of sandwich bread.

  Also, in the case of a reciprocating cutting device, when manufacturing sandwich pans with different thicknesses, either a separate device with end banded blades arranged in parallel at intervals corresponding to this is prepared, or there are many in one device Since it was necessary to change all the intervals between the end-banded blades, there is also a desire to easily manufacture sandwich pans having different thicknesses at a lower cost.

  Such a request, that is, a relatively soft bread can be cut while suppressing its deformation, a smooth cut surface can be obtained, and the thickness of the bread piece obtained by cutting can be easily changed. Not only sandwich bread processed from bread, but also various breads obtained by cutting (for example, roll bread cut from necessity to pack ingredients) are mentioned.

  Therefore, the present invention can cut even a relatively soft bread while suppressing deformation, can obtain a smooth and fine cut surface, and can easily reduce the thickness of a bread piece obtained by cutting. It aims at providing the bread cutting device which can be changed.

  The present invention has been made in view of the above-described circumstances, and a bread cutting device according to the present invention includes a bread moving unit that moves the bread to the back side, and an endless band blade to cut the bread from above. A bread cutting unit, and a vertical drive unit that moves the bread cutting unit up and down. The bread cutting unit includes two pulleys disposed opposite to each other across a path along which the bread moves, and the pulley. The endless belt blade is wound between two pulleys and is driven to rotate together with the pulleys. Here, the endless band blade means a band blade having an endless band blade having a blade on at least one side by connecting both ends thereof, but the manufacturing method is not limited. .

  In such a configuration, since the band blade is used, the contact area with the pan at the time of cutting can be reduced. Therefore, even a relatively soft bread can be cut while suppressing its deformation. Further, since the endless belt blade is driven to rotate in one direction along with the rotation of the pulley, a relatively smooth and fine cut surface can be obtained in the cut bread piece. Furthermore, the thickness of the bread piece obtained can be changed only by changing the timing of lowering the bread cutting part from above.

  Further, the pulley included in the bread cutting part is provided such that the rotation axis is inclined from the vertical direction to the front side so that the upper part of the rotation axis is located on the front side compared to the lower part. Of the part of the endless belt that connects the two, the part that moves on the back side may be located above the part that moves on the front side. In such a configuration, the pan is moved from the front side to the back side by the pan moving unit, and the cut bread piece is also moved to the back side. It is possible to prevent contact with the portion.

  Further, the pan cutting part has a blade direction restricting part for restricting a blade direction of a portion moving on the front side of the endless blades connecting the pulleys to a substantially vertical downward direction, The two endless rollers are arranged on the left and right sides of the trajectory where the pan moves, and are arranged in parallel so as to be rotatable in the vicinity of the front side and the back side with the rotation axis oriented substantially vertically. The band blade may be sandwiched between the rollers. In such a configuration, it is possible to prevent the endless belt blade from moving in the direction of the blade during cutting.

  Moreover, the said bread cutting part may have a guide part which guides the part which moves the front side among the parts of the said endless band blade which connects between the said pulleys. When it is set as such a structure, the flutter of the endless belt edge at the time of a cutting | disconnection can be suppressed.

  The guide section of the bread cutting section extends along a portion of the endless band blade that connects the pulleys and moves on the front side, and sandwiches the upper portion of the endless band blade from the front side and the back side. You may have the thin plate-shaped guide support part to support. When such a configuration is adopted, the guide support portion enters into the cut portion of the pan together with the endless belt blade at the time of cutting, the contact area between the endless belt blade and the bread cutting surface can be further reduced, and deformation of the pan is further prevented. Can do.

  The vertical drive unit may include a motor, a crank mechanism that connects the output shaft of the motor and the pan cutting unit, and a vertical movement regulating unit that regulates the vertical movement direction of the pan cutting unit. . In such a configuration, the vertical drive unit can move the pan cutting unit up and down along the regulated trajectory by driving the motor, and accurately cut the pan into a desired thickness in a desired manner. Can do.

  According to the bread cutting device of the present invention, even a relatively soft bread can be cut while suppressing deformation, a smooth and fine cut surface can be obtained, and a bread obtained by cutting The thickness of the piece can be easily changed.

  Hereinafter, a bread cutting device according to an embodiment of the present invention will be specifically described with reference to the drawings. FIG. 1 is a front view showing a schematic overall configuration of a bread cutting device 1 according to an embodiment of the present invention, and FIG. 2 is a side view of the bread cutting device 1 shown in FIG. .

  As shown in FIGS. 1 and 2, the bread cutting device 1 includes a lower base 3 a that is provided with a caster 2 at a lower end portion thereof and can move horizontally. The lower base 3a has a structure in which each ridge of a rectangular parallelepiped is made of a steel material, and the casters 2 are attached to the four corners of the lower end. In the vicinity of the caster 2, there is provided a screw-type restricting means 4 for restricting the movement of the lower base 3a by lifting and supporting the lower base 3a. Therefore, this bread cutting device 1 can be freely moved to a required place and installed and fixed according to the layout of other processing lines.

  In the following description, the direction in which the bread is moved at the time of cutting in the bread cutting device 1 is the front or back side, and the reverse is the rear or front side, and the left and right directions are the left and right when the bread cutting device 1 is viewed from the front. It is described as coincident with the direction (see FIGS. 1 and 2). Moreover, although the bread cutting device 1 can have the same effect with respect to cutting of various breads such as a roll bread in addition to the bread, the following description will explain a case of cutting the bread as an example.

  At the upper end of the lower base 3a, there is provided a pan moving unit 5 that moves the bread in the front-rear direction. In addition, an upper base 3b is installed on the back side of the upper portion of the lower base 3a so as to straddle the movement path of the bread moved by the bread moving unit 5. The upper base 3b is provided with a vertical drive unit 7 for moving the bread cutting unit 6 that cuts the bread from above. The bread cutting unit 6 is suspended by the vertical drive unit 7 so as to be suspended. It is supported by. Further, a control unit 8 for controlling the operation of the bread cutting device 1 is provided on the outer wall portion of the upper base 3b, and an operation panel 8a for operation by an operator is provided on the front of the control unit 8. Yes. Hereinafter, each part of the bread cutting device 1 will be described in detail.

FIG. 3 is a partially enlarged view of the bread cutting device 1 shown in FIG. 2, and shows a detailed structure of the bread moving unit 5 in a side view. As shown in FIG. 3, the bread moving unit 5 includes a mounting table 10 on which the bread B ₁ is placed, and a movable unit 11 a that is screwed into a motor 11 m and a ball screw (not shown) to move the mounting table 10 in the front-rear direction. And a linear actuator 11. The linear actuator 11 is arranged with its longitudinal direction parallel to the front-rear direction, and the movable portion 11 a is connected to the mounting table 10. Therefore, when the linear actuator 11 is operated, the mounting table 10 on which the bread B ₁ is placed has the rearmost position P ₁ on the lower base 3a and the foremost position P ₂ straddling the upper base 3b. It is movable in the front-rear direction within the range between.

Each of the front and rear of the mounting table 10, the front holding plate 12 for holding bread B ₁ from the front and rear direction and the rear holding plate 13, is erected. Among these, the front holding plate 12 is fixed to the mounting table 10 with screws, but the rear holding plate 13 is movable within a predetermined range in the front-rear direction with respect to the mounting table 10, and at any position within this range. A stopper 13a for fixing the rear holding plate 13 is provided. Accordingly, it laid on the table 10 mounting the bread B ₁ is brought into contact with the front end portion to the front holding plate 12, to move the rear holding plate 13 to abut against the rear end of the loaf of bread B ₁ in this state. And the bread | pan B1 can be reliably hold | maintained on the mounting base 10 by fixing the rear part holding | maintenance board 13 with the stopper 13a. In addition, a handle 14 that is gripped by an operator when the mounting table 10 is manually moved is attached to the foremost part of the mounting table 10.

  FIG. 4 is a partially enlarged view of the bread cutting device 1 shown in FIG. 1 and shows the detailed structure of the bread cutting unit 6 and the vertical drive unit 7 in a front view. FIG. 5 is a partially enlarged view of the bread cutting device 1 shown in FIG. 2, and shows the detailed structure of the bread cutting unit 6 and the vertical drive unit 7 in a side view.

  As shown in FIGS. 4 and 5, the vertical drive unit 7 includes a first motor 20m that is a large servo motor. The first motor 20m has an output shaft 20a parallel to the left-right direction and an appropriate position of the upper base 3b. (A suitable speed reducer may be provided between the first motor 20m and the output shaft 20a). The vertical drive unit 7 includes a disk 21a coaxially attached to the end of the output shaft 20a of the first motor 20m, and a rod 21b whose upper end is pivotally supported in the vicinity of the outer edge of the disk 21a. The lower end portion of the rod 21b is pivotally supported by a pulley support portion 31 that supports two pulleys 30a and 30b included in the pan cutting portion 6.

  The pulley support portion 31 is formed of a square bar member having a length dimension substantially the same as the width of the upper base 3b, and is suspended by left and right springs 22a and 22b suspended from an appropriate position of the upper base 3b. In addition, above the inside of the upper base 3b, a shaft 23 having a circular cross section is bridged between the left and right side walls of the upper base 3b. The shaft 23 suspends the pulley support portion 31 of the pan cutting portion 6 via a second crank mechanism 24 including an arm 24a provided symmetrically and a rod 24b pivotally supported at the tip of the arm 24a. ing.

  Further, the vertical drive unit 7 includes a vertical movement restricting unit 26 that restricts the vertical movement path of the pulley support unit 31 included in the pan cutting unit 6. The vertical movement restricting portion 26 is attached to the left and right inner wall portions of the upper base 3b and opened vertically, and a pole 26b that is inserted into the cylindrical member 26a and whose axis is directed in the vertical direction. The lower end portion of the pole 26b is fixed to the pulley support portion 31 of the pan cutting portion 6. The pole 26b is slidable in the vertical direction while being inserted through the cylindrical member 26a.

  When the first motor 20m is operated, the vertical drive unit 7 having such a configuration converts the rotational operation of the output shaft 20a into a reciprocating operation in the vertical direction via the first crank mechanism 21, and the first crank mechanism 21 The pulley support part 31 of the bread cutting part 6 connected to is moved up and down. At this time, since the pole 26b of the vertical movement restricting portion 26 fixed to the pulley support portion 31 can move only in the vertical direction while being inserted through the cylindrical member 26a, the pulley support portion interlocked with the first motor 20m. 31 moves up and down precisely along the vertical direction. Further, the operation of the vertical drive unit 7 is controlled by the control unit 8, and the pulley support unit 31 is aligned to an arbitrary height within the movable range in accordance with a program prepared in advance or in accordance with an input signal from the operation panel 8a. Furthermore, the vertical movement speed can be arbitrarily controlled.

  As shown in FIGS. 4 and 5, the bread cutting part 6 includes two left and right pulleys 30 a and 30 b that are rotatably supported at the left and right ends of the pulley support part 31. The pulleys 30a and 30b are arranged on the left and right outer sides of the upper base 3b, and an endless band blade 32 is wound between the pulleys 30a and 30b with the cutting edge facing downward. An output shaft (not shown) of the second motor 33m is directly connected to the right pulley 30b of the left and right pulleys 30a, 30b. When the second motor 33m is operated, the pulley 30b is rotated in conjunction with the rotation. The endless belt 32 is driven to rotate. The operation of the second motor 33m is controlled by the controller 8, and the endless band blade 32 is rotationally driven at any speed in one direction and the other direction.

Further, the pulleys 30a and 30b are provided such that the rotation shaft cores 34a and 34b are inclined rearward (front side) by a predetermined same angle α with respect to the vertical direction. That is, the pulleys 30a and 30b are provided such that the rotation shaft cores 34a and 34b are inclined backward. As a result, of the portion of the endless band blade 32 connecting the pulleys 30a and 30b (that is, the portion of the endless band blade 32 positioned in the upper base 3b), the portion that moves on the front side (hereinafter referred to as “front band blade”). ”) 32a (FIG. 4) and a portion (hereinafter referred to as“ back band blade ”) 32b (FIG. 4) that moves on the back side is positioned above a predetermined height D (also FIG. 5). reference). In the present embodiment, the height dimension D is set to a value larger than the height dimension of the bread B ₁ placed on the bed.

Therefore, as will be described later, the bread B ₁ on the mounting table 10 is cut by the front belt blade 32a that moves up and down while being moved to the back side, but the bread piece B ₂ obtained by cutting further to the back side. When it moves, it can prevent contacting with back belt blade 32b which has descended. The vertical drive unit 7 described above reciprocates the bread cutting unit 6 in the vertical direction by rotationally driving the output shaft 20a of the first motor 20m. The position at which 32a is in close proximity without contacting the upper surface of the mounting table 10 at the foremost position P ₂ (see FIG. 3) is the lowest position.

  As shown in FIG. 4, the bread cutting unit 6 includes a guide unit 40 that guides the movement of the front band blade 32 a among the endless band blades 32, and a blade direction regulation unit 50 that regulates the direction of the blade edge in the vertically downward direction. I have. FIG. 6 is an enlarged perspective view showing a part of the bread cutting part 6 and shows a part of the guide part 40 and the blade direction restricting part 50. Although FIG. 6 shows the configuration of the vicinity of the left pulley 30a, the configuration of the vicinity of the right pulley 30b is symmetrical.

  As shown in FIG. 6, the guide part 40 is supported by a pulley support part 31 (see FIG. 4) via a bracket 41, and is a thin plate-like guide support member 42 and a slit in which a slit 43a is formed in the vertical direction. It is comprised from the member 43. FIG. The guide support member 42 is formed by bending a strip-shaped thin plate material in the width direction, and has a groove 42a that opens downward, and has a transverse section formed in an inverted U shape. The guide support member 42 is covered from above so that only the lower cutting edge 32c is exposed, and the upper part of the front band blade 32a is supported by sandwiching the upper part of the front band blade 32a from the front side and the back side. (See FIG. 4).

Accordingly, when the second motor 33m is operated and the endless belt blade 32 is rotationally driven, the front belt blade 32a is sandwiched between the guide support members 42 and moves along the groove 42a, thereby suppressing flutter during movement. . Moreover, since most of the front band blade 32a is covered by the guide support member 42, during the cutting of bread B _1, the contact area between the front band blade 32a and the cut surface of the bread B ₁ to be moved is greatly reduced . Therefore, it is possible to prevent the bread B _{1 from} being deformed as much as possible due to the contact with the moving front strip blade 32a.

  The left and right end portions of the guide support member 42 are sandwiched between the lower end side wall portion of the bracket 41 by a block-shaped locking member 42b having a through hole (not shown), and in this state, the locking member 42b The mounting bolt 42c is screwed to the bracket 41 through the through hole, so that the bracket 41 is fixed. Therefore, the guide support member 42 can also be attached / detached by attaching / detaching the mounting bolt 42c.

  On the other hand, the slit member 43 is disposed near the left and right outer sides of the guide support member 42. More specifically, the slit member 43 is disposed such that the slit 43a is positioned on the left and right extension of the groove 42a of the guide support member 42. And the endless strip blade 32 is inserted | pinched by this slit 43a. Accordingly, the endless belt blade 32 that rotates in accordance with the operation of the second motor 33m is smoothly guided to the groove 42a of the guide support member 42 through the slit 43a.

  As shown in FIG. 6, the blade direction regulating portion 50 is supported by a pulley support portion 31 (see FIG. 4) via a bracket 51, and includes a pair of sandwiching rollers 52 a and 52 b and an upper roller 53. ing. The sandwiching rollers 52a and 52b are arranged close to the front side and the back side so that the rotation shaft cores 54a and 54b are oriented in the vertical direction and the endless band blade 32 is sandwiched therebetween, and are rotatable on the bracket 51. It is supported. Further, the upper roller 53 is disposed between the sandwiching rollers 52a and 52b and the above-described guide support member 42 with its rotation axis 55 facing the front-rear direction. Further, the upper roller 53 is rotatably supported by the bracket 51 so that the lower peripheral surface thereof is in contact with the upper end portion (back portion) of the endless band blade 32.

As described above, the pulleys 30a and 30b (see FIGS. 3 and 4) according to the present embodiment are provided with the rotation axes 34a and 34b inclined backward by a predetermined angle α. , 30b, the cutting edge 32c of the endless band blade 32 is directed in a direction inclined by a predetermined angle α from the vertical direction. Therefore, by providing the blade direction regulating portion 50 described above, the edge 32b of the endless belt blade 32 sandwiched between the sandwiching rollers 52a and 52b is corrected vertically downward. As a result, the vertical movement direction of the bread cutting part 6 and the direction in which the cutting edge 32c of the front band blade 32a faces coincide. Therefore, the bread B ₁ can be smoothly cut by the vertical movement of the bread cutting unit 6. Further, the upper roller 53 suppresses the vertical flutter of the front band blade 32a between the sandwiching rollers 52a and 52b and the guide support member 42.

The cutting operation of the bread B ₁ using the bread cutting device 1 configured as described above will be described with reference to the schematic operation diagrams shown in FIGS. As illustrated in FIG. 7 (a), first, bread B ₁ having a rectangular parallelepiped shape in a state in which the combined longitudinal back-and-forth direction on the table 10 mounting at the rearmost position P ₁ (ear is cut in advance) It was placed, the front holding portion 12 and the rear holding portion 13 holds the bread B ₁ from the front and rear direction is fixed by the stopper 13a (state 1).

Next, the pan moving unit 5 operates the linear actuator 11 to move the mounting table 10 forward, so that the front end of the bread loaf B ₁ is slightly forward from directly below the front band blade 32a of the bread cutting unit 6. The mounting table 10 is stopped at the position (state 2 in FIG. 7B). Then, by operating the vertical drive unit 7, lowers the bread cutting unit 6 is disposed above the initial state, the second endless belt blade 32 which is rotated by the operation of the motor 33m, the front end of bread B ₁ The bread B ₁ is cut by approaching the portion from above (state 3 in FIG. 8 (a)).

When one cutting is completed, the vertical drive unit 7 raises the pan cutting unit 6 and the pan moving unit 5 operates the linear actuator 11 to advance the mounting table 10 by a predetermined distance and then stops (see FIG. 8 (b), state 5), and then the above states 3-5 are repeated. Thus, bread B ₁ represents is sliced into a number of pan pieces B ₂ having a predetermined thickness (see FIG. 9 (a)). In addition, the bread cutting part 6 performs a descent | fall and a raise once each time the 1st motor 20m which the vertical drive part 7 has 1 rotation.

Meanwhile, according to the pan cutting apparatus 1 according to this embodiment, it is possible to easily change the thickness of the bread pieces B ₂ in any dimension. That is, as described in the state 4 described above, the mounting table 10 is advanced by an arbitrary distance by the operation of the linear motion actuator 11. Therefore, the advance distance of the mounting table 10 in the state 4 can be changed by changing the control program of the linear actuator 11 incorporated in the control unit 8 or by inputting from the operation panel 8a. it is possible to change the thickness of the strip B _2. In FIGS. 7 and 8, the bread piece B ₁ is shown thicker for easy understanding of the contents to be described, but it can be cut to a thickness of about several millimeters.

Bread cutting apparatus 1 according to this embodiment, the operation control of the first motor 20m by the control unit 8, the relative distance between the bread B ₁ and the endless belt blade 32 (front band blade 32a) is determined. Therefore, the cutting depth of the bread B ₁ can be arbitrarily determined by appropriately controlling the rotation operation of the first motor 20m.

For example, after rotating the first motor 20m once to cut the bread B ₁ only once, the front belt blade 32a is lowered again, and the first motor 20m is reversed immediately before the front belt blade 32a reaches the lowest position. And raise the front belt blade. In this case, as shown in FIG. 9B, a sandwich bread B ₃ having a deep cut b _{3 in} the middle in the thickness direction can be obtained.

In the above description, the pan moving unit 5 includes the mounting table 10 and the linear actuator 11, but the pan moving unit 5 is not limited thereto. For example, a mechanism that simply pushes the bread B ₁ on the lower substrate 3a forward may be used, or a belt conveyor installed on the lower substrate 3a may be used. These are pre-processed bread B ₁ in bread cutting device 1 operation, depending on the work or the like after processing, may be configured to select the appropriate ones.

  The bread cutting device according to the present invention is capable of cutting various breads such as bread and roll bread, and is suitable, for example, for producing sandwich bread by cutting a bread having a rectangular parallelepiped shape by cutting off the ear part. It is.

It is a front view showing the schematic whole structure of the bread cutting device concerning an embodiment of the invention. It is the side view which looked at the bread cutting device shown in FIG. 1 from the left side. It is the elements on larger scale of the bread cutting device shown in FIG. 2, and has shown the detailed structure of the bread moving part with the side view. It is the elements on larger scale of the bread cutting device shown in FIG. 1, and has shown the detailed structure of the bread cutting part and the vertical drive part with the front view. It is the elements on larger scale of the bread cutting device shown in FIG. 2, and has shown the detailed structure of the bread cutting part and the up-down drive part with the side view. It is a perspective view which expands and shows a part of bread | pan cutting part, and has shown a part of guide part and the blade direction control part. It is a typical operation diagram for explaining the cutting operation of bread using the bread cutting device. It is a typical operation diagram for explaining cutting operation of bread using a bread cutting device. It is the schematic diagram which illustrated the bread piece obtained by cut | disconnecting bread using a bread cutting device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Pan cutting device 3a Lower base | substrate 3b Upper base | substrate 5 Pan moving part 6 Pan cutting part 7 Vertical drive part 8 Control part 8a Operation panel 10 Mounting stand 11 Direct acting actuator 12 Front holding plate 13 Rear holding plate 13a Stopper 14 Handle 20m 1st DESCRIPTION OF SYMBOLS 1 Motor 21 1st crank mechanism 22a Spring 22b Spring 23 Shaft 24 2nd crank mechanism 26 Vertical movement control part 30a Pulley 30b Pulley 31 Pulley support part 32 Endless band blade 32a Front band blade 32b Rear band blade 32c Cutting edge 33m Second motor 40 Guide part 42 Guide support member 42a Groove 43 Slit member 50 Blade direction restricting part 52a Nipping roller 52b Nipping roller 53 Upper roller

Claims (1)

A pan moving part that moves the pan to the back side, two pulleys arranged opposite to each other across the pan moving path to cut the pan from above, and the interlocking rotation by being wound between the pulleys A bread cutting part having an endless belt blade, and a vertical driving part for moving the bread cutting part up and down,
The pulley included in the bread cutting part is provided such that the rotation axis is inclined from the vertical direction to the front side so that the upper part of the rotation axis is located on the front side compared to the lower part,
The pan cutting part is disposed in proximity to the two pulleys so as to restrict the direction of the blades of the endless belt blades connecting the pulleys that move on the front side in a substantially vertical downward direction, and the rotation axis is vertically oriented. guiding the two clamping rollers and the rotation axis and the blade angle limiting unit consisting of upper rollers which are directed to the longitudinal direction directed, the portion for moving the front side of the portion of the endless belt edge connecting between said pulleys to A thin plate-like guide support part that supports the upper end of the endless belt blade from the front side and the back side as much as possible,
The guide support portion is provided across the movement route of the pan from one blade direction restricting portion to the other blade direction restricting portion ,
A slit member having a slit through which an endless band blade whose direction is regulated by the sandwiching roller passes is disposed between the sandwiching roller of the blade orientation regulating unit and the end of the guide support unit.
The bread cutting device according to claim 1, wherein the upper roller is provided so that a peripheral surface thereof is in contact with an upper end portion of the endless belt blade passing between the clamping roller and the guide support portion .

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