JP4895243B1 - Bread slicer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bread slicing device capable of stabilizing a falling posture of a sliced bread piece, suppressing a disturbance of a dropping position, and reducing an adverse effect on a downstream process.
When a bread piece 101 falls with respect to a transport surface 51a, the bread piece 101 is guided in an oblique posture by a bread piece guide 34, and the whole bread piece 101 is not bent and bent or the end portion hangs down. It falls in a stable oblique posture. Landing on the conveyance surface 51a from the lower end (lower end 101a) of the slanting posture and immediately landing on the higher end (upper end 101b), the drop posture is not easily disturbed. Disturbances are also reduced.
[Selection] Figure 4

Description

  The present invention, for example, for making sandwiches to be sold at convenience stores, supermarkets, etc., slices a lump of bread into a plurality of bread pieces of a predetermined slice thickness, and drops ears as necessary, etc. Relates to a bread slicing apparatus.

  For example, as in Patent Document 1, when a bread piece sliced to a predetermined slice thickness falls on the conveyance surface (horizontal plane) of the conveyance conveyor arranged in parallel with the slicer, the bread piece sliced thinly and having flexibility The posture tends to become unstable because the whole is bent and bent, the end portion hangs down, or falls in a state of being largely inclined with respect to the conveying surface (for example, an inclination of 45 ° or more). Such disturbance of the drop posture is likely to cause disturbance also at the drop position, which adversely affects downstream processes (such as the ear drop process and bread piece cutting process), and affects the quality and yield of products such as sandwiches. May decrease.

JP 2008-290160 A

  An object of the present invention is to provide a bread slicing apparatus that can stabilize the falling posture of a sliced bread piece, suppress disturbance of the dropping position, and reduce adverse effects on downstream processes.

Means for Solving the Problems and Effects of the Invention

In order to solve the above problems, the present invention provides:
A bread slicing device for slicing a block-shaped loaf into a plurality of bread pieces having a predetermined slice thickness,
A transport conveyor for sequentially transporting a plurality of sliced bread pieces downstream;
A disk-shaped rotating slicer provided with a posture in which the plate surface is inclined at an acute angle with respect to the conveying surface of the conveying conveyor;
A slicer reciprocating drive device that reciprocates the rotary slicer in an acute inclination direction parallel to the inclined posture, and causes the rotary slicer to perform a slicing operation in a forward stroke and a retreat operation in a backward stroke;
A bread loaf feeding device that intermittently feeds the bread loaf from above at a distance corresponding to the slice thickness in a direction that intersects the trajectory of the reciprocating drive of the rotary slicer ,
The rotary slicer is provided in an inclined posture having an acute angle of 5 ° to 30 ° so that the slice start side is high and the slice end side is low with respect to the transport surface, and the rotary slicer moves along an inclined orbit parallel to the inclined posture. And slicing the lower end of the bread loaf intermittently fed in the downward direction intersecting the inclined trajectory with the bread loaf feeding device into bread pieces,
The conveyance conveyor is configured to convey the bread pieces sliced by the rotating slicer and falling in an oblique posture while holding the pieces on the conveyance surface one by one .

  In the bread slicing apparatus, the bread pieces sliced by the rotary slicer fall on the transport conveyor in an attitude inclined at an acute angle with respect to the transport conveyor (an oblique attitude), and are held in parallel and transported downstream. Specifically, for example, a bread piece falling in an oblique posture is landed on the transport surface of the transport conveyor at an obliquely lower end, and the upper end is rotated downward with the landed lower end as a fulcrum. By moving and landing on the transport surface, the entire slice surface is smoothly held on the transport surface.

  Thus, when the bread piece falls with respect to the conveying surface, the whole bread piece is bent in a stable oblique posture without being bent and bent or the end portion hanging down. In other words, the lower end of the oblique posture (lower end) lands on the conveyance surface, and the higher end (upper end) immediately lands, so that the drop posture is not disturbed and the drop position is disturbed. Becomes smaller. Therefore, adverse effects on downstream processes can be reduced, contributing to improvement in product quality and yield.

  In the case where a guide member is provided for guiding the bread piece so that the bread piece sliced by the rotary slicer falls on the transport conveyor in an oblique posture, and the guide member moves integrally in synchronization with the reciprocation of the rotary slicer. Since the bread piece is guided in an oblique posture by the guide member and the side to be landed first can be determined, the dropping posture of the bread piece is further stabilized and the disturbance of the dropping position can be further reduced.

  The sharp inclination direction (acute inclination track) in which the rotary slicer is driven reciprocally has an inclination of about 5 ° to 30 ° with respect to the transport surface of the transport conveyor, so that the falling posture of the bread pieces can be stabilized. is there. In addition, by making the tilt angle adjustable within a range of, for example, about 10 ° ± 5 °, the posture of dropping the bread pieces can be adjusted according to how the bread pieces are baked and the size of the bread pieces (especially the slice thickness). Can be adjusted. In addition, the conveyance surface of a conveyance conveyor is generally set to the horizontal surface extended in a substantially horizontal direction (within about +/- 5 degree with respect to a horizontal line).

  When the guide member described above is arranged so as to intersect and form a guide angle that is an elevation angle with respect to the inclined track of the rotary slicer, and when the guide angle of the guide member is set larger than the tilt angle of the inclined track The bread piece sliced by the rotary slicer can be guided in an oblique posture so as to face downward toward the slice start side. For example, if the inclination angle of the inclined track is about 5 ° to 30 °, the guide angle of the guide member can be about 10 ° to 60 °.

  The direction of feeding the bread block may be set to a direction intersecting with the reciprocating drive trajectory (acute inclined trajectory) of the rotary slicer, and includes a case where the orientation is perpendicular to the transport surface (for example, the vertical direction). In this case, the bread chunk intermittently fed in the vertical direction (downward) is sliced into obliquely cut bread pieces as the rotating slicer in the inclined posture moves on the acute inclined trajectory.

  The bread lump feeding device intermittently cuts the bread lump by a distance corresponding to the slice thickness in a direction inclined at an acute angle with respect to the vertical with respect to the transport conveyor by intersecting the reciprocating drive trajectory of the rotary slicer substantially at right angles. To send. In this way, slice the bread pieces into multiple slices by making the direction of feeding the bread chunks and the trajectory of the rotary slicer almost orthogonal (intersection angle is about 90 ° ± 10 °) and slicing them into bread pieces cut at right angles. This can reduce waste.

  The bread lump feeding device includes a feed belt provided to face the bread lump and a drive device that intermittently feeds the feed belt. By sandwiching the bread chunks with a pair of feed belts arranged opposite to each other and feeding them intermittently, the slice operation can be efficiently performed while maintaining the slice thickness of the bread pieces constant.

  When protrusions are formed on the bread block holding surface of the feed belt, the protrusions are pressed against the surface of the bread block to prevent the bread block from falling off, and the slice thickness of the bread pieces can be easily maintained constant. Become.

  When the holding member that holds the lower end portion of the bread loaf in a state where the slice thickness to be sliced next is maintained when the feed belt is stopped by feeding the bread loave below the bread loaf feeder, By supporting the bread block from below with the holding member, uneven slice thickness of the bread pieces can be prevented. In addition, when a plurality of bread pieces are sliced from the bread loaf and the end bread piece remaining at the end is less than a predetermined slice thickness, even if the feeding belt cannot feed or hold the end bread pieces, Can be held.

  After the bread lump feeder has stopped by feeding the bread lump for the slice thickness, the rotary slicer slices the lower end of the bread lump by the forward stroke along the acute inclined trajectory and retreats from the bread lump by the return stroke, A loaf feeder feeds the loaf for the next slice thickness. By performing the bread lump feeding operation by the bread lump feeding device and the slicing operation by the rotary slicer in a coordinated manner, the slicing operation can be performed more efficiently.

  When the holding member described above has a support portion that supports the lower end portion of the bread loaf from below and a window hole that allows the sliced bread pieces to pass through, and moves together with the rotary slicer, The bread loaf that has been fed is supported by the support during the feeding operation of the bread loaf by the feeding device, and held with the bread loaf feeding device and the rotary slicer so that the sliced bread pieces pass through the window hole during the slice operation by the rotary slicer The member can be operated in cooperation.

  The disc-shaped rotary slicer is supported by a slider in an attitude inclined at an acute angle with respect to the conveyor, and is driven to rotate by a slicer motor fixed to the slider, and the slider is acutely inclined at an acute angle with respect to the conveyor. Guided by a fixed position guide frame so as to reciprocate along the tilt direction, the slicer reciprocating drive device is connected to the slider, and a disk-shaped rotary slicer and slicer motor are integrally formed with the slider in an acute angle tilt direction. And reciprocating while guiding the guide frame. By rotating the slicer and the slicer motor together with the guide frame so as to reciprocate, the rotation of the rotary slicer and the reciprocation in the acute inclination direction during the slicing (acute inclination trajectory) are stabilized. The slicing surface will be clean.

  When the guide member described above is fixed to the slider below the rotary slicer and facing the window hole of the holding member, the bread slice sliced by the rotary slicer interferes with the rotary shaft of the rotary slicer, etc. It becomes easy to guide to the window hole of the holding member while protecting from.

And in order to solve the said subject, this invention
A bread slicing device for slicing a block-shaped loaf into a plurality of bread pieces having a predetermined slice thickness,
A transport conveyor for sequentially transporting a plurality of sliced bread pieces downstream;
A disk-shaped rotating slicer provided with a posture in which the plate surface is inclined at an acute angle with respect to the conveying surface of the conveying conveyor;
A slicer reciprocating drive device that reciprocates the rotary slicer in an acute inclination direction parallel to the inclined posture, and causes the rotary slicer to perform a slicing operation in a forward stroke and a retreat operation in a backward stroke;
A bread loaf feeding device that intermittently feeds the bread loaf from above at a distance corresponding to the slice thickness in a direction that intersects the trajectory of the reciprocating drive of the rotary slicer,
Wherein the middle of the conveyor belt of the conveyor ears removal device is provided to cut the ears of bread piece on the conveying surface, and the blade dropped ears his ears removal device is disposed on the upper side of the conveyor belt, the and a disposed in the ear drop blade strikes region below the conveyor belt elastic member,
During ear drops, the elastic member by supporting the force the ear drop blade pushes the bread pieces elastically while permitting sinking of the conveyor belt, the ear drop blades only ears bread pieces Cut and
The transport conveyor includes an upstream conveyor provided with the ear drop device, and a downstream conveyor connected via a gap between the upstream conveyor and the bread piece,
When the bread pieces are passed between the conveyors, the separated ears are dropped from the gap and collected,
The conveying conveyor is provided with a crushing device that crushes the collected ears into pieces or crushes them into bread crumbs .
The ear drop blade can be elastically supported so as not to bite into the conveyor belt by the elastic member, and the ear drop operation can be performed safely and speedily. In addition, a rubber plate, a urethane sheet, etc. can be used as an elastic member.

  The ear drop blades are arranged in a rectangular frame shape, and in a state where the conveyor belt is stopped, the ear drop blades are pressed against the pan pieces in a stationary state and simultaneously cut in a state where the four ear portions are separated from each other. The By pressing the ear drop blade against the stationary piece of bread, the ear drop blade can be cleaned at the time of the ear drop, and the ear drop blade can be easily stopped at a position where it does not bite into the conveyor belt.

  An alignment device that aligns the position of the bread pieces on the conveyance surface in a certain state with respect to the conveyance direction can be provided on the conveyance conveyor upstream of the ear drop device. By aligning the position of the bread pieces in a certain state upstream of the ear drop device, the ear drop operation in the downstream process can be performed efficiently. As an aligning device, for example, by installing swing plates on both the left and right sides of the bread pieces conveyed by the conveyor, respectively, by swinging each swing plate back and forth like a wiper and contacting the left and right sides of the bread pieces, The bread pieces can be aligned straight with respect to the direction of travel. In addition, you may provide buffer materials, such as a rubber plate and a urethane sheet, in the contact surface with a bread piece.

  The conveyor includes an upstream conveyor provided with an ear drop device, and a downstream conveyor connected to the upstream conveyor through a gap that allows the delivery of bread pieces. When delivered, the separated ear is dropped from the gap and collected. Since the ear part can be removed from the bread piece without stopping the conveyance on the conveyor (upstream and downstream conveyors), the bread piece and the ear part can be separated and recovered efficiently, Work efficiency in the process is also improved.

  The conveying conveyor is provided with a crushing device that crushes the collected ears into small pieces or crushes them into bread crumbs. The crushing device makes it easy to reuse the ear part, which is a waste part, as feed or food.

  The crushing device is provided with a wind-powered conveying device that transports strips or bread crumbs to a predetermined position by wind power. Since a large amount of strips and bread crumbs can be transported far away by the wind-powered conveying device, it is easy to process the ears whose amount of generation increases according to the amount of bread pieces produced.

The schematic front view which shows one Example of the bread slice apparatus which concerns on this invention. The front view and bottom view which show schematic structure of the principal part of a bread slice apparatus. The bottom view of the principal part at the time of a slice operation | movement. Explanatory drawing which shows the operation | movement which slices a bread piece from a bread lump. The front view which shows schematic structure of a bread lump feeder. The top view which shows the conveyance state of the sliced bread piece. The top view which shows schematic structure of the modification of an alignment apparatus. The top view which shows the conveyance state following FIG. The front view and side view which show schematic structure of an ear drop apparatus. Explanatory drawing which shows the operation | movement which drops ears from a bread piece. Explanatory drawing which shows the modification of the operation | movement which slices a bread piece from a bread lump. The top view which shows the modification of arrangement | positioning of the ear drop blade. The schematic front view and bottom view which show the principal part about the other Example of the bread slice apparatus which concerns on this invention. The bottom view of the principal part at the time of a slice operation | movement. Explanatory drawing which shows the operation | movement which slices a bread piece from a bread lump.

Example 1
Hereinafter, embodiments of the present invention will be described with reference to examples shown in the drawings. FIG. 1 is a schematic front view showing an embodiment of a bread slicing apparatus according to the present invention. A bread slicing apparatus 1 shown in FIG. 1 is used to slice a bread lump 100 baked in a block shape in an oven (not shown) into a plurality of bread pieces 101 having a slice thickness α suitable for sandwiches, for example. The block-shaped bread loaf 100 generally has a shape similar to a rectangular parallelepiped, and its slice surface has a pseudo-rectangular shape. However, in the following description, the bread loaf 100 has a regular quadrangular prism shape and its slice surface. May be treated as a square.

  This bread slicing device 1 includes a bread loaf feeding device 2 that intermittently feeds the loaf loaf 100 downward, and a disk-shaped rotary slicer 3 that slices the lower end portion of the bread loaf 100 fed by the bread loaf feeding device 2. A slicer reciprocating drive device 4 that reciprocates the rotary slicer 3 and a conveyor 5 that sequentially conveys a plurality of bread pieces 101 sliced by the rotary slicer 3 downstream. The conveyor 5 includes a first belt conveyor 51 positioned below the rotary slicer 3, a second belt conveyor 52 positioned downstream thereof, a third belt conveyor 53 positioned further downstream thereof, and a further downstream side. And a fourth belt conveyor 54 for the sandwich process.

  The second belt conveyor 52 is provided with an ear drop device 6 for cutting the ear portion 102 of the bread piece 101. The ear portion 102 is crushed across the terminal end (downstream end) of the second belt conveyor 52 (upstream conveyor) and the start end (upstream end) of the third belt conveyor 53 (downstream conveyor). A crushing device 7 for crushing to 104 and a wind-powered conveying device 8 for conveying the bread crumbs 104 to a predetermined position by wind force are provided. The bread slicing device 1 includes a bread lump supply device 91 that supplies the bread lump 100 to the bread lump feeding device 2 one by one, and the bread pieces 101 on the first belt conveyor 51 before the ear drop device 6 drops the ears. An aligning device 92 for aligning the positions in a certain state, and a removing device 93 for removing the end bread pieces 105 (see FIG. 6) sliced first and last from one bread loaf 100 from the first belt conveyor 51 are also provided. Is provided.

  Further, the third belt conveyor 53 is provided with a butter coating device 94, which temporarily coats the surface of the transfer roller 94b rotating the butter (for example, mustard butter) stored in the hopper 94a, and cuts off the ear portion 102. The butter is applied to the sliced surface of the obtained earless bread piece 103 (takes a kind of transfer form). The auxiliary roller 94c is opposed to the transfer roller 94b in order to keep the amount of downward bending of the earless bread piece 103 and the third belt conveyor 53 due to the pressing of the transfer roller 94b within a predetermined range. In contact with the lower surface. The transfer roller 94b is rotationally driven by a motor or the like, but the auxiliary roller 94c may be in a non-driven idle state.

  The disc-shaped rotary slicer 3 has an acute angle (θ = 5 ° to 30 °) with respect to the conveyance surface 51a (horizontal plane) of the first belt conveyor 51 so that the plate surface becomes higher toward the slice start side. Grade). The slicer reciprocating drive device 4 drives the rotary slicer 3 to reciprocate in an acute inclination direction parallel to the inclined posture. The slicer reciprocating drive device 4 causes the rotary slicer 3 to perform a slicing operation with a forward stroke that is obliquely downward, and to perform a retreat operation with a backward stroke that is obliquely upward. The bread lump feeding device 2 intermittently feeds the bread lump 100 from above at a distance corresponding to the slice thickness α in a direction intersecting with the reciprocating drive trajectory of the rotary slicer 3 (direction orthogonal in the figure). Since the direction in which the bread lump 100 is sent and the inclined orbit of the rotary slicer 3 are orthogonal to each other in this way, the bread slice 100 is sliced into right-angle cut pieces 101. Further, the feed direction of the bread loaf feeder 2 has an inclination of an inclination angle θ with respect to a direction perpendicular to the transport surface 51 a of the first belt conveyor 51.

  The bread lump supply device 91 includes a vertical conveyor 91a that is connected by a plurality of vertical frames 91b and is guided by a fixed guide frame 91c to move around. When a rectangular parallelepiped-shaped or square prism-shaped bread loaf 100 is inserted one by one between the vertical frames 91b and the vertical conveyor 91a is circulated, the top bread loom 100 is obliquely positioned above the bread loaf feeder 2 by the guide frame 91c ( The posture is changed to an inclination angle θ), and it is dropped and supplied to the bread lump feeder 2.

  FIG. 5 is a front view showing a schematic configuration of the bread lump feeder. The bread lump feeder 2 synchronizes the pair of feed belts 21 provided with the bread lump clamping surfaces 21a for holding the bread lump 100 facing each other and the pair of feed belts 21 in a downward direction intermittently. Gear transmission device 23 (drive device). In order to transmit the rotation of the feed motor 22 to the feed belts 21 at the same time, the gear transmission 23 has three sets of gears (bevel gears in the figure) arranged on one drive shaft 24. A timing belt is used. In addition, a plurality of protrusions 21b are formed in a grid pattern on the bread lump sandwiching surface 21a of the feed belt 21, and the protrusions 21b are pressed against the surface of the bread lump 100 to prevent the bread lump 100 from slipping off. The slice thickness α of 101 is kept constant. In addition, the bread lump clamping surface 21 a of the feed belt 21 may be any one of the two facing surfaces of the four side surfaces of the bread lump 100.

  FIG. 2 is a front view and a bottom view showing a schematic configuration of a main part (mainly a rotary slicer and a slicer reciprocating drive device) of the bread slicer. The rotary slicer 3 is supported by the reciprocating frame 31 (slider) in a posture (tilt angle θ) inclined at an acute angle with respect to the first belt conveyor 51 (conveying surface 51a) so as to become higher toward the slice start side, and reciprocally moves. The slicer motor 32 fixed to the frame 31 is rotationally driven via a slicer rotating belt 33. The reciprocating frame 31 is guided by a fixed frame 41 (guide frame) whose position is fixed so that the reciprocating frame 31 reciprocates along an acutely inclined direction inclined at an acute angle with respect to the first belt conveyor 51 so as to increase toward the slicing start side. Is done. The slicer reciprocating drive device 4 is connected to the reciprocating frame 31 and the fixed frame 41, and causes the rotary slicer 3 and the slicer motor 32 to be guided together with the reciprocating frame 31 to the fixed frame 41 in the acute inclination direction. While reciprocating.

  Specifically, the rotation of the reciprocating drive motor 42 fixed to the fixed frame 41 is transmitted by the belt 43 to the drive shaft 44 rotatably supported by the fixed frame 41 and the rotation arm 45 integral with the drive shaft 44. Is done. Two arm holding rails 31b are fixed to the reciprocating frame 31 in the front-rear direction (a direction orthogonal to the traveling direction of the first belt conveyor 51), and the tip 45a of the rotating arm 45 is between the arm holding rails 31b and 31b. (That is, the groove) is slidably inserted in the front-rear direction. Two linear rails 31 a are fixed to the reciprocating frame 31 in parallel in the left-right direction (advancing direction of the first belt conveyor 51), and these linear rails 31 a are fixed in parallel to the fixed frame 41 in the left-right direction. Each is guided by a straight guide 41a. Although the linear guide member (commonly called linear guide) is formed by the linear rail 31a on the moving side and the linear guide 41a on the fixed side, the fixed side may be a rail and the moving side may be a guide.

  Therefore, when the rotary arm 45 rotates 180 ° from the position of FIG. 2B to the position of FIG. 3, the tip 45a of the rotary arm 45 slides between the arm holding rails 31b and 31b in the front-rear direction, The reciprocating frame 31 moves linearly in the left-right direction with respect to the fixed frame 41 by the sliding guide between the linear rail 31a and the linear guide 41a. As described above, the rotary slicer 3 and the slicer motor 32 are integrally guided by the fixed frame 41 to reciprocate, whereby the rotation of the rotary slicer 3 during slicing and the reciprocation in the acute inclination direction (acute inclination trajectory). Is stable, and the sliced surface of the bread piece 101 is also visually beautiful. The rotary arm 45 and the arm holding rails 31b and 31b constitute a reciprocating slider crank mechanism. However, when the gap between the arm holding rails 31b and 31b is considered as a cam groove, the tip of the rotary arm 45 is provided. 45a can also be regarded as a cam follower.

  FIG. 2 also shows a mechanism 46 for adjusting the inclination angle θ by a long hole and a screw. The adjusting mechanism 46 adjusts the inclination angle θ of the rotary slicer 3 and the slicer reciprocating drive device 4 within a range of about ± 5 °, for example, to make the bread block 100 and the size of the bread piece 101 (especially the slice thickness α) The falling posture of the bread piece 101 can be finely adjusted according to the above.

  As shown in FIG. 2, a plate-like bread piece guide 34 (guide member) is fixed to the tip of the reciprocating frame 31 (on the bread lump feeder 2 side), and is synchronized with the reciprocating motion of the rotary slicer 3. Move together. The tip of the bread piece guide 34 is located immediately after and immediately below the cutting edge of the rotary slicer 3 cut into the bread lump 100. The bread piece guide 34 guides the bread piece 101 so that the bread piece 101 sliced by the rotary slicer 3 at the time of slicing falls on the first belt conveyor 51 in an oblique posture, and is positioned on the lower surface side of the rotary slicer 3. The slicer rotating belt 33, the pulley 33a, the rotating shaft 33b and the like are covered so as not to interfere with the pan piece 101. The bread piece guide 34 is disposed so as to intersect and form a guide angle δ which is an elevation angle with respect to the inclined track of the rotary slicer 3 (δ = about 10 ° to 60 °).

  Here, since the guide angle δ (for example, δ≈30 °) of the pan piece guide 34 is set larger than the inclination angle θ (for example, θ≈15 °) of the inclined track, the bread sliced by the rotary slicer 3 is used. The piece 101 can be guided in an oblique posture so as to be directed downward toward the slice start side (downstream side in the transport direction of the first belt conveyor 51) (see FIG. 4A). In this way, the bread piece 101 can be guided in an oblique posture by the bread piece guide 34 and the landing side can be determined first, so that the falling posture of the bread piece 101 is stabilized and the disturbance of the dropping position can be reduced. .

  Further, a plate-like bread lump stopper 35 (holding member) is also extended at the tip of the reciprocating frame 31 and moves integrally with the rotary slicer 3. The bread loaf stopper 35 includes a support portion 35a that supports the lower end portion of the bread loaf 100 from below, and a rectangular window hole 35b through which the bread piece 101 sliced by the rotary slicer 3 passes. By supporting the bread loaf 100 from below with the support portion 35a, for example, the feed force of the feed belt 21 can be adjusted so that the bread piece 101 is not compressed more than necessary in the thickness direction, and the slice thickness of the bread piece 101 is increased. It is possible to prevent the irregularity of α. However, if the slice thickness α of the bread piece 101 can be secured by intermittent feeding and holding of the bread loaf 100 by the bread loaf feeding device 2, the support portion 35a may not be provided.

  The window hole 35 b is disposed below the rotary slicer 3 so as to face the bread piece guide 34. By the opposing arrangement of the window hole 35b and the bread piece guide 34, the bread piece 101 sliced by the rotary slicer 3 is obliquely tilted by the bread piece guide 34 while protecting it from interference with the pulley 33a, the rotary shaft 33b, etc. of the rotary slicer 3. It is easy to guide downward and guide to the window hole 35b.

In addition, as shown in FIG. 3, when the slice surface of the bread lump 100 is considered as a square having a length LS of one side, the slicer diameter DM required for cutting is:
DM> 2 ^1/2 × LS
It is expressed. The moving stroke ST of the rotary slicer 3 necessary for cutting (that is, the turning diameter of the rotary arm 45) is
ST> 2 ^1/2 × LS
It is expressed. Thus, in this embodiment, since the bread piece guide 34 is provided, the slicer diameter DM should be larger than 2 ^1/2 ≈1.41 times the length LS of one side, and the moving stroke ST is equal to the slicer diameter DM. Equal to or greater than

  FIG. 4 is an explanatory diagram showing an operation of slicing a bread piece from the bread loaf. With the bread lump feeder 2 stopped by feeding the bread lump 100 by the slice thickness α, the rotary slicer 3 slices the bread piece 101 from the lower end of the bread lump 100 by the forward stroke along the acute inclined trajectory (FIG. 4). (A)). During the slicing operation of the rotary slicer 3, the window hole 35b passes (falls) the bread piece 101 sliced by the rotary slicer 3 and guided by the bread piece guide 34, and the support portion 35a does not disturb the slicing operation. It is retracted beyond the bread lump feeder 2.

  Next, the rotary slicer 3 is retracted from the bread loaf 100 by the reverse stroke, and the bread loaf feeding device 2 feeds the bread loaf 100 by the next slice thickness α (FIG. 4B). When the rotary slicer 3 is retracted, the support portion 35a is positioned below the bread lump feeding device 2, holds the lower end portion of the bread lump 100 while maintaining the slice thickness α to be sliced next, and also supports the window hole 35b and the bread slice. The piece guide 34 is retracted together with the rotary slicer 3.

  With the bread lump feeder 2 stopped, the rotary slicer 3 again moves the forward stroke along the acute inclined trajectory to slice the next bread piece 101 from the lower end of the bread lump 100 (FIG. 4C). . In this way, by performing the feeding operation of the bread loaf 100 by the bread lump feeding device 2 and the slicing operation by the rotary slicer 3 in a coordinated manner, the slicing operation can be performed efficiently. If the end bread piece 105 (see FIG. 6) remaining last after slicing a plurality of bread pieces 101 from the bread lump 100 is less than the predetermined slice thickness α, it cannot be fed or held by the feed belt 21. Even in this case, the end pan piece 105 can be supported by the support portion 35a. At this time, the end bread piece 105 cannot be sliced by the forward stroke movement of the rotary slicer 3, but the end bread piece 105 is guided by the bread piece guide 34 and passes through the window hole 35 b, and then on the first belt conveyor 51. Fall into.

  Then, the bread pieces 101 sliced by the rotary slicer 3 fall on the first belt conveyor 51 in a posture inclined at an acute angle with respect to the conveyance surface 51a (for example, an oblique posture of about 10 ° to 30 °) and held in parallel. Then it is transported downstream. Specifically, the bread piece 101 to be sliced by the rotary slicer 3 is guided by the bread piece guide 34 in an oblique posture so as to be directed downward toward the slice start side (downstream side in the transport direction of the first belt conveyor 51). (FIG. 4A). The bread pieces 101 falling in an oblique posture land on the conveyance surface 51a (the conveyance downstream side) of the first belt conveyor 51 at the diagonally lower end portion 101a (FIG. 4 (b)), and the landed lower side The upper end 101b pivots downward with the end 101a as a fulcrum and lands on the transport surface 51a (on the upstream side of transport), whereby the entire slice surface is smoothly held on the transport surface 51a (FIG. 4 ( c)).

  Thus, when the bread piece 101 falls with respect to the conveyance surface 51a, the bread piece 101 is guided in an oblique posture by the bread piece guide 34, and the whole bread piece 101 is not bent and bent or the end portion hangs down. It falls in a stable oblique posture. That is, since the lower end portion (lower end portion 101a) of the slanted posture lands on the conveyance surface 51a and immediately the higher end portion (upper end portion 101b) also lands, the drop posture is not easily disturbed. Positional disturbance is also reduced.

  FIG. 6 is a plan view showing a transport state of sliced bread pieces. As described above, when the bread piece 101 falls in an oblique posture with respect to the transport surface 51a of the first belt conveyor 51, the dropping posture of the bread piece 101 particularly in a front view is stabilized. However, even in this case, the dropping position (falling posture) in plan view may be slightly deviated from the traveling direction of the first belt conveyor 51 (not parallel). Therefore, an alignment device 92 is provided to align the position of the bread piece 101 on the first belt conveyor 51 in a state parallel to the traveling direction of the first belt conveyor 51 before performing the ear drop processing.

  Specifically, the alignment device 92 shown in FIG. 6 includes an alignment plate 92a disposed on each of the left and right sides of the bread piece 101 in the traveling direction of the first belt conveyor 51, and an air cylinder 92c that advances and retracts each alignment plate 92a. And have. Further, in the aligning device 92 of the modified example shown in FIG. 7, the aligning plates 92 a are respectively installed on the left and right sides of the bread piece 101 in the traveling direction of the first belt conveyor 51, and the circular rotating plate 92 d and each aligning plate are arranged. 92a is connected by a connecting arm 92e. Each of the connecting arms 92e and the rotating plate 92d are connected at a symmetrical position eccentric from the center of the rotating plate 92d, and the rotating plate 92d is rotated forward and backward within a predetermined angular range (for example, ± 90 °). Each alignment plate 92a is reciprocally swung like a wiper. In the aligning device 92 shown in FIGS. 6 and 7, the left and right aligning plates 92a are brought into contact with the left and right side surfaces of the pan piece 101 in synchronization with each other, whereby the pan piece 101 can be quickly aligned in a straight state with respect to the traveling direction. it can. The alignment plate 92a may be provided with a cushioning material 92b such as a rubber plate or a urethane sheet on the contact surface with the pan piece 101 to prevent deformation of the pan piece 101 or the like.

  Returning to FIG. 6, an end pan piece 105 removing device 93 is provided on the downstream side of the aligning device 92 in the transport direction. Specifically, the removing device 93 includes a push plate 93a that pushes the end pan piece 105 from one side in the traveling direction, and an air cylinder 93b that moves the push plate 93a back and forth. Since the generation time (arrival time to the removal device 93) of the end bread piece 105 is known in advance from the size (height) of the bread lump 100 and the slice thickness of the bread piece 101 (or arrival can be detected by a sensor). If the air cylinder 93b is extended at a predetermined timing, the end pan piece 105 can be pushed out by the push plate 93a and taken out into the end pan piece collection container 93c.

  FIG. 8 is a plan view showing a conveying state following FIG. The bread pieces 101 whose postures are adjusted by the aligning device 92 shown in FIG. 6 are transferred from the first belt conveyor 51 (conveying surface 51a) to the subsequent second belt conveyor 52 (conveying surface 52a). In the middle of the second belt conveyor 52, an ear drop device 6 for cutting the ear portion of the bread piece 101 on the transport surface 52a is provided. The ear drop device 6 includes an ear drop blade 62 disposed on the upper side of the second belt conveyor 52 and an elastic member 67 disposed on the lower side of the second belt conveyor 52 in a region where the ear drop blade 62 hits. As shown in FIG. 8, the elastic member 67 has a larger area than the slice surface of the bread piece 101.

  The ear drop blades 62 are arranged in a rectangular (substantially square in the figure) frame shape. Specifically, four blade bodies 62a, 62b, 62c, and 62d are arranged in a cross beam shape, and two opposing sides (two pieces of 62a and 62c in the figure) are arranged on the outer edge of the bread piece 101. It is formed long until it reaches or exceeds the outer edge. In the state where the second belt conveyor 52 is stopped, the blades 62a, 62b, 62c and 62d constituting the ear drop blade 62 are simultaneously pressed against the stationary bread piece 101 so that the four edge portions 102 are separated from each other. Disconnected at the same time. The elastic member 67 is fixedly disposed on a conveyor guide (not shown) of the second belt conveyor 52, and a rubber plate, a urethane sheet, or the like can be used.

  FIG. 9 is a front view and a side view showing a schematic configuration of the ear drop device. The elevating frame 61 that integrally supports the ear drop blade 62 via the vibration isolation member 61b is guided by a fixed frame 66 that is fixed in position so as to reciprocate in the vertical direction.

  Specifically, the rotation of the ear drop motor 63 fixed to the fixed frame 66 is transmitted to a circular rotary plate 64 directly connected to the motor 63. The rotating plate 64 and the lifting frame 61 are connected by the swing arm 65. One end (lower end) of the swing arm 65 is connected to the lift frame 61 so as to be swingable. The other end (upper end) of the swing arm 65 is rotatably connected to the rotating plate 64 at a position eccentric from the center of the rotating plate 64. Two linear rails 61 a are fixed to the elevating frame 61 in parallel in the vertical direction, and these linear rails 61 a are respectively guided by two vertical guides 66 a in the vertical direction fixed in parallel to the fixed frame 66. Although the linear guide member (commonly called linear guide) is formed by the linear rail 61a on the moving side and the linear guide 66a on the fixed side, the fixed side may be a rail and the moving side may be a guide.

  Therefore, when the rotary plate 64 is rotated halfway (either forward or reverse) from the state of the solid line in FIG. 9, the lifting frame 61 is lowered with respect to the fixed frame 66 by the sliding guide between the linear rail 61 a and the linear guide 66 a ( Move straight to the position of the virtual line. Further, when half rotation is performed (either forward or reverse), the elevating frame 61 linearly moves upward (original solid line position) with respect to the fixed frame 66 by the sliding guide between the linear rail 61a and the linear guide 66a.

  Furthermore, FIG. 10 is explanatory drawing which shows the operation | movement which drops ears from a bread piece. In a state where the ear drop blade 62 stands by above the second belt conveyor 52, the next bread piece 101 is carried by the second belt conveyor 52 (FIG. 10A). When the bread piece 101 reaches the region where the elastic member 67 is provided, the second belt conveyor 52 is stopped, and the ear drop motor 62 is driven to lower the ear drop blade 62 (FIG. 10B). At the lower limit stroke position of the ear drop blade 62, the elastic member 67 elastically supports the force with which the ear drop blade 62 presses the bread piece 101 while allowing the second belt conveyor 52 to sink, thereby the ear drop blade 62. Is lowered until it slightly touches the transport surface 52a of the second belt conveyor 52, and only the ear portion 102 of the bread piece 101 is cut (FIG. 10C). The ear drop motor 62 is driven to raise the ear drop blade 62 and the conveyance by the second belt conveyor 52 is resumed (FIG. 10D). As described above, the elastic member 67 can elastically support the ear drop blade 62 so as not to bite into the second belt conveyor 52, so that it is safe and hygienic, and the durability of the second belt conveyor 52 is also impaired. Absent.

  Returning to FIG. 8, the end portion (downstream end portion) of the second belt conveyor 52 and the start end portion (upstream end portion) of the third belt conveyor 53 are passed through a gap β that can be transferred by the earless bread piece 103. Connected. In addition, the conveyance width (belt width) of the third belt conveyor 53 is formed to be slightly wider than the width of the earless bread piece 103, in other words, about the same as the width of the bread piece 101.

  Accordingly, the earless bread pieces 103 can be transferred from the second belt conveyor 52 to the third belt conveyor 53 by inertia. On the other hand, the ear part 102 that has already been cut by the ear drop blade 62 is separated from the earless bread piece 103 by the impact when the earless bread piece 103 is transferred to the third belt conveyor 53, and is separated into gaps β, Or it falls from both sides of the third belt conveyor 53. The dropped ear 102 is collected in the ear collection container 71 of the crushing device 7, crushed into bread crumbs 104 by the crusher 72, and then wind-carryed in the pipeline 82 by the blower 81 of the wind-carrying device 8. It is recovered in a bread crumb recovery container 83 (see FIG. 1). Further, in the third belt conveyor 53, butter is applied to the sliced surface of the earless bread piece 103 by the transfer roller 94b of the butter applying device 94, and the process proceeds to the sandwich process (see FIG. 1).

(Modification 1)
FIG. 11 is an explanatory view showing a modified example of the operation of slicing bread pieces from bread loaves. In this modification, the bread lump 100 is sent in a direction (vertical direction) perpendicular to the transport surface 51 a of the first belt conveyor 51. Therefore, the bread lump 100 intermittently fed in the vertical direction (downward) is sliced into the obliquely cut bread pieces 101 as the rotating slicer 3 in the inclined posture moves on the acute inclined trajectory.

(Modification 2)
FIG. 12 is a plan view showing a modification of the arrangement of the ear drop blades. In this modification, the four blade bodies 62a, 62b, 62c, and 62d of the ear drop blade 62 are arranged in a spiral shape, so that the blade bodies 62a to 62d can be easily used in common.

(Example 2)
FIG. 13 is a schematic front view and bottom view showing the main part of another embodiment of the bread slicing apparatus according to the present invention, and FIG. 14 is a bottom view of the main part during the slicing operation. As shown in FIG. 14, the slicer diameter DM of this example is
DM> 5 ^1/2 × LS
It is represented by As described above, in this embodiment, since the large-diameter blade having a slicer diameter DM larger than 5 ^1/2 ≈2.24 times the length LS of one side of the bread lump 100 is used, the slicer diameter DM is less than half that of the rotary slicer 3. The bread loaf 100 can be sliced by area. Therefore, in this embodiment, the bread piece guide 34 (guide member) of Embodiment 1 can be omitted. Further, in this embodiment, the bread block stopper 35 (holding member) of the first embodiment is also omitted. The moving stroke ST of the rotary slicer 3 necessary for cutting (that is, the turning diameter of the rotary arm 45) is
ST> (5 ^1/2 × LS) / 2
And is equal to or greater than the radius of the rotary slicer 3.

  FIG. 15 is an explanatory diagram showing an operation of slicing bread pieces from the bread loaf. With the bread lump feeding device 2 stopped by feeding the bread lump 100 by the slice thickness α, the rotary slicer 3 slices the bread piece 101 from the lower end of the bread lump 100 by the forward stroke along the acute inclined trajectory (FIG. 15). (A)). Next, the rotary slicer 3 retreats from the bread loaf 100 by the reverse stroke, and the bread loaf feeding device 2 feeds the bread loaf 100 by the next slice thickness α (FIG. 15B). With the bread lump feeder 2 stopped, the rotary slicer 3 again moves the forward stroke along the acute inclined trajectory to slice the next bread piece 101 from the lower end of the bread lump 100 (FIG. 15 (c)). . In this way, by performing the feeding operation of the bread loaf 100 by the bread lump feeding device 2 and the slicing operation by the rotary slicer 3 in a coordinated manner, the slicing operation can be performed efficiently.

  Also in this embodiment, the bread piece 101 sliced by the rotary slicer 3 falls on the first belt conveyor 51 in a posture inclined at an acute angle with respect to the transport surface 51a (for example, an oblique posture of about 10 ° to 30 °), It is held in parallel and conveyed downstream. Specifically, the bread piece 101 sliced by the rotary slicer 3 falls in an oblique posture as it is (FIG. 15A). The bread piece 101 falling in an oblique posture lands on the conveyance surface 51a (the conveyance upstream side) of the first belt conveyor 51 at the lower end portion 101a in the oblique direction (FIG. 15 (b)), and the landed lower side The upper side end portion 101b pivots downward with the end portion 101a as a fulcrum and lands on the transport surface 51a (the transport downstream side thereof), whereby the entire slice surface is smoothly held on the transport surface 51a (FIG. 15 ( c)).

  Thus, when the bread piece 101 falls with respect to the conveyance surface 51a, the bread piece 101 falls in a stable oblique posture without being bent and bent or the end portion hanging down. That is, since the lower end portion (lower end portion 101a) of the slanted posture lands on the conveyance surface 51a and immediately the higher end portion (upper end portion 101b) also lands, the drop posture is not easily disturbed. Positional disturbance is also reduced.

  In the modified examples 1 and 2 (FIGS. 11 and 12) and the second embodiment (FIGS. 13 to 15), parts having the same functions as those in the first embodiment (FIGS. 1 to 10) are denoted by the same reference numerals. Detailed explanations were omitted.

1 Bread slice device 2 Bread lump feed device 21 Feed belt (timing belt)
21a Bread lump clamping surface 21b Projection 22 Feeding motor 23 Gear transmission (drive device)
24 Drive shaft 3 Rotating slicer 31 Reciprocating frame (slider)
31a Straight rail (straight guide member)
31b Arm holding rail (reciprocating slider crank mechanism)
32 Slicer motor 33 Slicer rotation belt 33a Pulley 33b Rotating shaft 34 Pan piece guide (guide member)
35 Bread loaf stopper (holding member)
35a Support part 35b Window hole 4 Slicer reciprocating drive device 41 Fixed frame (guide frame)
41a Straight guide (straight guide member)
42 Reciprocating drive motor 43 Belt 44 Drive shaft 45 Rotating arm (Reciprocating slider crank mechanism)
45a Tip 46 Inclination angle adjustment mechanism 5 Conveyor 51 First belt conveyor 51a Conveying surface 52 Second belt conveyor (upstream conveyor)
53 Third belt conveyor (downstream conveyor)
54 Fourth belt conveyor 6 Ear drop device 61 Elevating frame 61a Straight rail (straight guide member)
61b Anti-vibration member 62 Ear drop blade 63 Ear drop motor 64 Rotating plate 65 Oscillating arm 66 Fixed frame 66a Linear guide (linear guide member)
67 Elastic member 7 Crushing device 8 Wind conveying device 91 Bread lump supply device 92 Alignment device 93 Removal device 94 Butter applicator 100 Bread lump 101 Bread piece 102 Ear portion 103 Earless bread piece 104 Bread crumb 105 End bread piece LS Length of one side DM Slicer diameter ST Movement stroke α Slice thickness β Gap θ Tilt angle δ Guide angle

Claims (13)

A bread slicing device for slicing a block-shaped loaf into a plurality of bread pieces having a predetermined slice thickness,
A transport conveyor for sequentially transporting a plurality of sliced bread pieces downstream;
A disk-shaped rotating slicer provided with a posture in which the plate surface is inclined at an acute angle with respect to the conveying surface of the conveying conveyor;
A slicer reciprocating drive device that reciprocates the rotary slicer in an acute inclination direction parallel to the inclined posture, and causes the rotary slicer to perform a slicing operation in a forward stroke and a retreat operation in a backward stroke;
A bread loaf feeding device that intermittently feeds the bread loaf from above at a distance corresponding to the slice thickness in a direction that intersects the trajectory of the reciprocating drive of the rotary slicer ,
The rotary slicer is provided in an inclined posture having an acute angle of 5 ° to 30 ° so that the slice start side is high and the slice end side is low with respect to the transport surface, and the rotary slicer moves along an inclined orbit parallel to the inclined posture. And slicing the lower end of the bread loaf intermittently fed in the downward direction intersecting the inclined trajectory with the bread loaf feeding device into bread pieces,
The said conveyance conveyor hold | maintains the bread piece which is sliced with the said rotation slicer, and falls in the slanting posture on the said conveyance surface, and conveys it piece by piece . The bread slicing device according to claim 1, wherein the conveyor conveys a bread piece with a slice end side as a transport upstream side and a slice start side as a transport downstream side . A guide member for guiding the bread piece is provided so that the bread piece sliced by the rotary slicer falls on the transport conveyor in an oblique posture, and the guide member is integrated in synchronism with the reciprocating motion of the rotary slicer. The bread slicing device according to claim 1 or 2, wherein The guide member is disposed so as to intersect and form a guide angle that is an elevation angle with respect to the inclined track of the rotary slicer, and the guide angle of the guide member is set to be larger than the tilt angle of the inclined track. Item 4. The bread slicing apparatus according to item 3 . The bread lump feeding device corresponds to the slice thickness in a direction inclined at an acute angle with respect to the vertical with respect to the transport conveyor by intersecting the reciprocating drive track of the rotary slicer at a substantially right angle. The bread slicing device according to any one of claims 1 to 4, wherein the bread slicing device is intermittently sent at a distance. The loaf feed device includes a feed belt arranged opposite to sandwich the loaf, according to any one of claims 1 to 5 and a drive device for feeding the feed belt intermittently Bread slicer. Below the bread lump feeder, when the feed belt stops feeding the bread lump, a holding member is disposed that holds the lower end of the bread lump while maintaining the slice thickness to be sliced next. The bread slicing apparatus according to claim 6. The said holding member has a support part which supports the lower end part of a bread lump from the lower side, and a window hole which lets a sliced bread piece pass, It moves integrally with the said rotation slicer . Bread slicer. With the bread lump feeding device stopped by feeding the bread lump by the slice thickness, the rotary slicer slices the lower end of the bread lump by the forward stroke along the acute angle inclined orbit and retreats from the bread lump by the return stroke 9. The bread slicing apparatus according to any one of claims 1 to 8 , wherein the bread lump feeding device then feeds the bread lump by the next slice thickness. The disk-shaped rotary slicer is supported by a slider in an attitude inclined at an acute angle with respect to the conveyor, and is driven to rotate by a slicer motor fixed to the slider, and the slider has an acute angle with respect to the conveyor. Guided by a fixed position guide frame so as to reciprocate along an inclined direction with an acute angle,
The slicer reciprocating drive device is connected to the slider, and reciprocates together with the slider while rotating the disk-shaped rotary slicer and the slicer motor integrally with the guide frame in the acute angle inclination direction. 10. The bread slicing apparatus according to any one of 9 above. The bread slicer according to claim 10, wherein the guide member is fixed to the slider in a state of facing the window hole of the holding member below the rotary slicer. A bread slicing device for slicing a block-shaped loaf into a plurality of bread pieces having a predetermined slice thickness,
A transport conveyor for sequentially transporting a plurality of sliced bread pieces downstream;
A disk-shaped rotating slicer provided with a posture in which the plate surface is inclined at an acute angle with respect to the conveying surface of the conveying conveyor;
A slicer reciprocating drive device that reciprocates the rotary slicer in an acute inclination direction parallel to the inclined posture, and causes the rotary slicer to perform a slicing operation in a forward stroke and a retreat operation in a backward stroke;
A bread loaf feeding device that intermittently feeds the bread loaf from above at a distance corresponding to the slice thickness in a direction that intersects the trajectory of the reciprocating drive of the rotary slicer ,
In the middle of the conveyor belt of the conveyor, an ear drop device that cuts the ears of the bread pieces on the transport surface is provided, the ear drop device includes an ear drop blade disposed on the upper side of the conveyor belt, An elastic member disposed in a region where the ear drop blade hits on the lower side of the conveyor belt,
At the time of the ear drop, the elastic member elastically supports the force with which the ear drop blade presses the bread piece while allowing the conveyor belt to sink, so that the ear drop blade only supports the ear portion of the bread piece. Cut and
The transport conveyor includes an upstream conveyor provided with the ear drop device, and a downstream conveyor connected via a gap between the upstream conveyor and the bread piece,
When the bread pieces are passed between the conveyors, the separated ears are dropped from the gap and collected,
The bread slicing device , wherein the transporting conveyor is provided with a crushing device that crushes the collected ears into pieces or crushes them into bread crumbs . The bread slicing device according to claim 12 , wherein the crushing device is provided with a wind-powered conveying device that conveys the strip or bread crumbs to a predetermined position by wind force.

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