KR101750653B1 - A multi band-saw cutting apparatus - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cutting apparatus, and more particularly, to a multi-band cutting apparatus capable of performing a plurality of cutting operations while a workpiece is being transported by using a plurality of band saws.
The cutting apparatus of the present invention includes a roller assembly 80 which is disposed to be spaced apart from each other with a machining area CA of a work W interposed therebetween to switch the cutting direction of a plurality of band saws crossing between the drive pulley part and the idler part, And the band saw is sequentially disposed along the conveying direction of the workpiece as the drive pulley portion and the idler portion are disposed obliquely inclined in the width direction of the work area with respect to the conveying direction of the work piece.
A plurality of first guide portions are provided along the conveying direction on the conveying guide plate 90 provided in the machining area of the workpiece to guide the workpiece in the conveying direction. The first guide portion is located at a position deviated from the position of the band saw And the push bar 21 provided with a plurality of avoidance grooves 22 for passing the workpiece W through the area where the band saw is disposed and avoiding the band saw is guided by the first guide part A second guide portion is provided.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a multi-band cutting apparatus,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cutting apparatus, and more particularly, to a multi-band cutting apparatus capable of performing a plurality of cutting operations while a workpiece is being transported by using a plurality of band saws.

When cutting a frozen meat, a person cuts the frozen meat directly with a saw, or a method of cutting a frozen meat into a machine and cutting it has been used.

Conventionally, almost all kinds of frozen meat cutting machines use a band saw to cut frozen meat. In the case of the frozen meat, when the disk saw blade is used, the friction between the frozen meat and the disk portion of the disk saw blade is excessively increased, and heat is generated, so that the surface of the frozen meat melts to change the color or deteriorate taste. Accordingly, a method of cutting a frozen dough with a band saw that minimizes friction with the frozen dough during the cutting process has been applied. The band saw has a thickness of about 0.6 mm and a width of about 15 mm.

However, most of these band saw machines for cutting frozen meat were composed of only one band saw. Therefore, when cutting the frozen meat, it is common to cut the frozen meat to a desired thickness by performing the operation of performing one cutting at a time several times.

It is very difficult to arrange a plurality of band saws in parallel because the structure for feeding the band saw is very complicated and it is very difficult to arrange a plurality of band saws It was a very difficult task to implement the device so that all of the band saws would operate under the same transfer conditions.

Therefore, a fracture period as shown in Patent Publication No. 1189726 has been developed, but this structure has failed to operate properly. Particularly, in the form of a track which completely reverses the band saw, the band saw is repeatedly twisted (torsion) repeatedly as the band saw is transferred to the endless track, causing fatigue breakdown, which causes the band saw to be easily broken. Because of the characteristics of the device, even if only one band saw is broken, the whole device must be stopped, so frequent breakage of the band saw causes the operation efficiency to be lowered.

In addition, such a fracture period has a problem in that it is very difficult to uniformize the feeding conditions of a plurality of band saws, so that abrasion of the accessories occurs largely in a region where loads are concentrated, and metal foreign substances are introduced into frozen dough, which is food.

In addition, since such a breaking device cuts a plurality of band saws at the same time and a load is applied to all of the plurality of band saws, there is a problem that driving means having an output capable of performing a plurality of cutting operations simultaneously must be used.

Patent No. 1189726

SUMMARY OF THE INVENTION The present invention has been conceived to solve the problems described above, and it is an object of the present invention to provide a cutting device capable of performing a cutting operation by arranging a plurality of band saws side by side while minimizing an increase in the number of parts, .

 Another object of the present invention is to provide a cutting apparatus in which the output of the driving means is greatly reduced by allowing a plurality of cutting operations to be performed sequentially, not simultaneously, while the workpiece is being transported.

Another object of the present invention is to provide a cutting apparatus that smoothly carries out a cutting work while sequentially performing a plurality of cutting operations.

Another object of the present invention is to provide a cutting device for eliminating the possibility of damage to the device or damage to the device due to breakage of the band saw by immediately detecting and stopping the device when any one of the band saws is broken The purpose.

It is another object of the present invention to provide a cutting device having a structure that enables easy replacement of a band saw and maintenance of related parts even in a complicated structure in which a plurality of band saws are wound.

In order to solve the above-mentioned problems, the present invention provides a driving device comprising: a driving pulley part (50) axially installed on a driving pulley shaft (45); An idler portion (70) axially installed on an idler shaft (47) positioned vertically away from the drive pulley portion; A plurality of band saws (44) wound around the drive pulley portion and the idler portion along the axial direction; A roller assembly disposed between the driving pulley section and the idler section and spaced apart from each other with a machining area CA of the workpiece interposed therebetween to switch the cutting direction of the band saw across the driving pulley section and the idler section, Wherein the driving pulley portion and the idler portion are disposed obliquely inclined in the width direction of the working region with respect to the conveying direction of the workpiece so that the band saw is sequentially disposed along the conveying direction of the workpiece Thereby providing a cutting device.

The roller assembly (80) is provided with a plurality of first side support rollers (8031) for respectively supporting first side surfaces of the plurality of band saws, and a plurality of rear support rollers And a second roller unit 804 having a plurality of second side support rollers 8041 for supporting second side surfaces of the plurality of band saws, The first roller unit and the second roller unit are detachably fixed to each other.

The first side support roller 8031 and the second side support roller 8041 are disposed at positions opposite to each other with a band saw interposed therebetween and the rear support roller 8032 supports the first side support roller 8031, Is closer to the machining area (CA) of the work (W).

A plurality of first guide portions are provided along a conveyance direction on the conveyance guide plate 90 provided in the machining area of the workpiece to guide the workpiece in the conveyance direction, and the first guide portion is provided at a position deviated from the position of the band saw And a push bar 21 provided with a plurality of avoidance grooves 22 for passing the workpiece W through an area where the band saw is disposed and avoiding the band saw, 2 guide unit.

The first guide part is a guide groove 901 formed along the conveying direction of the workpiece and the second guide part is formed near at least a lower end of the tip end of the push bar and is guided forward and backward in a state of being inserted into the guide groove 23).

The plurality of band saws are arranged obliquely sequentially from one end toward the other end along the conveying direction w of the workpiece, and the other end of the workpiece is held in a state of gripping the other end of the workpiece And a transfer jig 93 that moves along the transfer direction of the workpiece.

The plurality of band saws are wound on a plurality of tensioner pulleys 61 each having one side rotatably provided on the other side of a plurality of tensioner arm plates 63 provided on a tensioner pulley shaft 46, Is provided with a cut detection part (69) which is elastically pressed in a direction to apply tension to the band saw and detects when at least one of the plurality of tensioner arm plates (63) is turned over a predetermined range in a direction in which tension is applied to the band saw Respectively.

According to the present invention, a plurality of band saws can be cut plural times by arranging the band saw to be spaced apart in the width direction in the machining area and transporting the workpiece once. In addition, since the plurality of band saws are arranged one after another in the direction in which the workpiece is transported in the machining area, cutting processing is possible even if the power of the drive means for driving the band saw is not large.

Further, according to the present invention, even if the cutting operation is sequentially performed in the long conveying path of the workpiece, it is possible to smoothly convey the workpiece to be cut, and prevent the transfer structure and the cutting structure of the workpiece from touching each other or colliding with each other .

 In addition, according to the present invention, when only one band saw is broken, it is detected immediately and the apparatus is automatically stopped in an emergency, whereby the occurrence of a safety accident can be prevented originally.

Further, according to the present invention, the disassembly-bonding structure is simple, so that replacement of the band saw and maintenance of the related parts can be facilitated.

The above and other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG.

1 is a perspective view of a cutting apparatus according to the present invention,
Figure 2 is a perspective view of a cutting subassembly of a cutting apparatus of the present invention,
FIG. 3 is a front view of the cutting portion assembly of FIG. 2;
FIG. 4 is a cross-sectional view of the cutting portion assembly of FIG. 2 taken in an axial direction,
Figure 5 is a top view of the cutting portion assembly of Figure 2,
FIG. 6 is a planar cross-sectional view schematically illustrating a machining surface of the cutting portion assembly of FIG. 5;
7 is a perspective view showing a configuration related to the driving of the band saw in the cutting portion assembly,
8 is a front perspective view of the lower fixing roller portion of the roller assembly performing the cutting direction aligning function of the band saw,
Fig. 9 is a rear perspective view of the lower fixing roller unit of Fig. 8,
FIG. 10 is a rear perspective view of a lower moving roller portion installed to face the lower fixing roller portion of FIG. 9,
FIG. 11 is a rear perspective view showing a state in which the lower fixing roller portion of FIG. 9 and the lower moving roller portion of FIG.
12 is an enlarged plan view showing a state in which the band saw is guided by the side supporting rollers and the rear supporting rollers provided on the lower fixing roller portion and the lower moving roller portion,
Figure 13 is a front perspective view showing the relevant configuration to indicate areas for machining and transporting the workpiece in the cutting subassembly,
14 is a plan view showing a conveyance guide plate of the present invention,
Fig. 15 is a plan view showing a state in which the moving conveying guide plate portion is separated from the conveying guide plate in Fig. 14,
Fig. 16 is a right side view showing the conveyance guide plate of Fig. 14,
17 is a perspective view showing a push bar for transferring a workpiece on the transfer guide plate,
18 is a plan view showing the push bar of Fig. 17,
19 is a right side view of the tensioner portion of the present invention,
FIG. 20 is a side perspective view of the tensioner unit of FIG. 19, with only one tensioner pulley unit remaining but the remaining tensioner pulley units omitted; FIG.
FIG. 21 is an enlarged perspective view of the tensioner pulley unit of FIG. 20 in which one side tensioner arm plate is omitted, and
22 is an axial view of the tensioner portion of Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

It is to be understood that the present invention is not limited to the disclosed embodiments, but may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, It is provided to inform.

Figure 2 is a perspective view of the cutting portion assembly of the cutting device of the present invention, Figure 3 is a front view of the cutting portion assembly of Figure 2, Figure 4 is a side view of the cutting portion assembly of Figure 2, Fig. 5 is a plan view of the cutting subassembly of Fig. 2, and Fig. 6 is a plan sectional view schematically illustrating the machining surface of the cutting subassembly of Fig. 1 to 3 and 5, the band saw 44 is omitted.

The cutting apparatus of the present invention includes a cutting sub-frame 30 that fixes and supports a cutting sub-assembly 40 that performs cutting for a workpiece W and provides a space in which a cutting process is performed. A transfer unit 20 is provided on one side (left side in the figure) of the cutting sub frame 30 to perform a function of transferring the work W to a space where cutting of the cutting sub frame 30 is performed. The transfer section 20 is supported and installed by the transfer section frame 10. The workpiece W is transferred from the left side to the right side in the drawing, and cutting processing is performed.

The cutting portion assembly 40 is provided between the fixing plate 41 and the detachable plate 42 disposed parallel to each other and between both ends of the driving pulley portion 50 and both ends of the tensioner portion 60 and the idler portion 70 And both ends are respectively supported. Both the fixing plate 41 and the detachable plate 42 are held fixed to the cutting unit assembly 40. The detachment plate 42 is detachably supported on the support arm 31 in the cutting portion frame 30 so that the support arm 31 is rotatable with respect to the cutting portion frame 30 by the hinge 32 And the support block 43 of the detachable plate 42 is fastened to the support arm 31 in a state of being lifted up on the support arm 31. Therefore, when the support block 31 is released from the engagement between the support block 43 and the support arm 31 and the support arm 31 is rotated to place the hinge 32 on the center, . This structure is advantageous for maintenance and replacement of other configurations of the cutting portion assembly including the band saw 44 to be described later.

The cutting portion assembly 40 is provided with a drive pulley portion 50 for winding and rotating a plurality of band saws (30 in the embodiment of the present invention) for cutting the workpiece W, a tensioner portion 60, The tensioner support shaft 46 and the idler shaft 47 are fixed to the drive pulley shaft 45, the tensioner support shaft 46 and the idler shaft 47, both ends of which are supported by the fixing plate 41 and the detachable plate 42, It is snowy.

The drive pulley 51, which is installed on the drive pulley shaft 45, rotates integrally with the drive pulley shaft 45. The drive pulley shaft 45 receives power from a drive motor 49 by a power transmission means such as a belt (not shown) at one end thereof and rotates. The driving motor 49 is fixed to the cutting portion frame 30. The driving pulley 51 may be a single pulley type so that a plurality of band saws may be wound together, or may be provided in a plurality of individual pulley shapes so that a plurality of band saws may be wound. In any case, the drive pulley 51 is fixed to the drive pulley shaft 45 that receives power from the drive motor 49 and rotates, and rotates integrally with the drive pulley shaft 45.

The band saw 44 which is driven by the drive pulley 51 and turns the locus is wound around the tensioner pulley 61 of the tensioner portion 60 and wound around the idler pulley 71 and returned to the drive pulley 51 again.

A plurality of tensioner pulleys 61 provided on the tensioner unit 60 are supported on the respective tensioner pulley shafts 62 between the pair of tensioner arm plates 63. [ A pair of tensioner arm plates 63 are provided on both sides of one tensioner pulley 61 and a tensioner pulley shaft 61 having both ends thereof fixed to the pair of tensioner arm plates 63 62). One tensioner pulley 61, a pair of tensioner arm plates 63 arranged on both sides thereof, and a tensioner pulley shaft 62 fixed to the pair of tensioner arm plates 63 are referred to as one tensioner pulley unit The tensioner unit 60 may be structured such that the plurality of tensioner pulley units are respectively supported by the tensioner supporting shaft 46. [ That is, the tensioner arm plate 63 of each tensioner pulley unit is independently fitted to the tensioner supporting shaft 46, and the tensioner arm plates 63 of the respective tensioner pulley units with respect to the tensioner supporting shaft 46 are independent As shown in Fig. Since the plurality of tensioner pulleys 61 are separately provided on the own tensioner pulley shaft 62, they are freely rotatable independently of each other. According to this structure, the tensioner pulley 61 is capable of revolving (revolving around) the tensioner supporting shaft 46 and is capable of rotating about the tensioner pulley shaft 62. The detailed structure of the tensioner portion 60 will be described later.

A plurality of individual idler pulleys 71 are provided in an idler shaft 47 and these idler pulleys 71 are rotatably mounted on the idler shaft 47 and a plurality of idler pulleys 71 ).

The cutting operation is performed in a section where the band saw 44 returns from the idler pulley 71 to the drive pulley 51 again. 6, the band saw section A pivoting from the drive pulley 51 to the tensioner pulley 61 and the machining area CA do not overlap with each other, while the idler pulley 71 and the drive pulley 51 The turning band saw section B exists in the machining area CA and is twisted so that the cutting direction of the band saw is aligned in the left and right direction. The cutting direction alignment of the band saw is performed by the roller assembly 80 described later. That is, as shown in FIG. 4, the band saw 44 is twisted in the predetermined section S by the roller assembly 80. According to the present invention, the pulleys 51, 71 wound with the plurality of band saws 44 are obliquely arranged with respect to the moving direction of the workpiece W. The present invention is applicable to a band saw 44 By aligning the cutting direction in the machining area CA of the work W in parallel with the feed direction of the work W so that the plurality of cutting operations are sequentially performed during the operation in which the work W is transported once in the machining area CA It is a technical feature to make it happen at once.

Hereinafter, a structure for aligning the band saw arranged at an angle to the moving direction of the workpiece in the cutting direction will be described. 8 is a front perspective view of a lower fixing roller portion of a roller assembly that performs a function of aligning the cutting direction of the band saw, Fig. 9 is a front perspective view of a lower fixing roller portion of the lower fixing roller portion of Fig. 8, Fig. FIG. 10 is a rear perspective view of the lower moving roller unit installed to face the lower fixing roller unit of FIG. 9, and FIG. 11 is a rear perspective view of the lower fixing roller unit of FIG. And FIG. 12 is an enlarged plan view showing a state in which the band saw is guided by the side supporting rollers and the rear supporting rollers 1 provided on the lower fixing roller portion and the lower moving roller portion.

7, a drive pulley 51, a tensioner pulley 61 and an idler pulley 71 are arranged to drive the band saw 44, and the idler pulley 71 and the drive pulley 71 51, a roller assembly 80 for rotating the cutting direction of the band saw in the conveying direction of the workpiece is disposed. The roller assembly 80 includes upper roller portions 81 and 82 and lower roller portions 86 and 87 spaced apart from each other. The band saw 44 wound from the idler pulley 71 and moving to the drive pulley 51 passes through the upper roller portions 81 and 82 and is turned in the cutting direction so as to coincide with the conveying direction of the workpiece, So that the cutting direction returns to coincide with the circumferential direction of the pulley (refer to FIG. 4). For example, if the band saw 44 is twisted by 30 degrees + direction while passing through the upper roller portion, the band saw 44 is twisted in the 30-degree direction while passing through the lower roller portion, and the direction returns to the original position.

Since the upper roller portions 81 and 82 can be configured to have a symmetrical structure with respect to the lower roller portion about the surface of the processing area CA, the lower roller portion 86 , 87).

Referring to Figs. 8 and 9, the lower fixing roller portion 86 has a fixed-side roller supporting plate 805 which is inclined with respect to the conveying direction w of the workpiece. On the fixed side roller supporting plate 805, a plurality of fixed side roller units 803 including a first side supporting roller 8031 and a rear supporting roller 8032 are provided. The first side support roller 8031 and the rear support roller 8032 are installed in a direction perpendicular to each other and the rear support roller 8032 is installed below the first side support roller 8031. The first side support roller 8031 and the rear support roller 8032 are oriented so as to correspond to the cutting direction of the workpiece with the fixed side roller unit 803 installed. In the embodiment of the present invention, 30 band saws are exemplified. The number of the fixed-side roller units 803 corresponding thereto is one more than 31. This is because of the guide structure of the band saw to be described later. For example, if the side of the band saw is supported by the first side support roller 8031 provided on the predetermined fixed side roller unit, Side support roller 8032 of the fixed-side roller unit provided at the back of the unit, the fixed-side roller unit is further provided with the number of the band saws. According to this structure, for example, the rear support roller 8032 indicated by x and the first side support roller 8031 indicated by y in FIG. 8 become redundant rollers which do not guide the band saw. If all of the first side support rollers and the rear side support rollers are not provided in one body but are realized in a unit structure (fixed side roller unit) as shown in the embodiment of the present invention, The maintenance and replacement process is also very simple.

Referring to Fig. 10, the lower moving roller portion 87 has a moving-side roller supporting plate 806 which is disposed at an oblique angle to correspond to the fixed-side roller supporting plate 805. [ The moving-side roller supporting plate 806 is placed obliquely to correspond to the fixed-side roller supporting plate 805, so that the moving-side roller supporting plate 806 is obliquely positioned with respect to the conveying direction w of the processing member. On the movable roller supporting plate 806, a plurality of movable roller units 804 including a second side supporting roller 8041 are provided. The second side support rollers 8041 are oriented so as to correspond to the cutting direction of the workpiece in a state in which the movable side roller unit 804 is installed. In the embodiment of the present invention, it is exemplified that 30 band saws are used, and the moving-side roller unit 804 is provided with 30 of the same number. Since the moving-side roller unit 804 includes only the second side support rollers 8041 for supporting and guiding the opposite sides of the band saw without the rear supporting rollers, the same number of the band saws as the band saw can be provided. If all of the second side support rollers are implemented in a unit structure (movable side roller unit) as shown in the embodiment of the present invention without being installed in one body, it is easy and convenient to manufacture and maintenance and replacement Becomes very simple.

As shown in FIG. 11, when the lower fixing roller portion 86 and the lower moving roller portion 87 are disposed to face each other, the fixed side roller unit 803 and the moving side roller unit 804 face each other. As shown in the figure, it can be seen that the fixed-side roller unit 803 is further provided with the movable-side roller unit 804. 12, when the fixed side roller unit 803 and the moving side roller unit 804 are opposed to each other and the first side support roller 8031 and the second side support roller 8041 face each other by a thickness of the band saw 44 And the rear side of the band saw is provided with a rear support roller 8032 provided on the lower side of the adjacent fixed side roller unit 803. The rear support roller 8032 is disposed on the lower side of the adjacent fixed side roller unit 803, As shown in Fig. This structure is also applied to the upper roller portions 81 and 82. [

In the present invention, the upper roller portion 81 and the upper roller portion 82 and the lower roller portion 86 and 87 are not formed as one structure, A lower fixing roller portion 86 and a lower moving roller portion 87. [ According to this structure, it is possible to easily mount or replace a band saw in the form of a closed loop.

The upper moving roller portion 82 and the lower moving roller portion 87 are separated from the cutting portion frame 30 and the cutting unit assembly 40 as described above, Is separated from the upper fixing roller portion 81 and the lower fixing roller portion 86, the band saw 44 can be easily mounted or replaced. According to the embodiment of the present invention, the pivot pin 801 is provided at one end of the moving-side roller supporting plate 806, The anti-rotation pin 802 is provided at the other end of the side roller supporting plate 806 to hold the anti-rotation pin 802 in the state where the moving roller portions 82 and 87 are to be fixed, 82 and 87 are separated from the fixing roller portions 81 and 86 and are detached, the anti-rotation pins 802 are removed and the moving roller portions 82 and 87 are rotated around the pivot pin 801 11). The moving roller portions 82 and 87 are vertically coupled to each other by the handle shaft 85 so that the moving roller portions 82 and 87 can be moved in the vertical direction as if the door is opened around the pivot pin 801 by gripping the handle shaft 85, 87 can be separated.

On the other hand, when the moving roller portions 82 and 87 are opened, the configuration that moves together with the moving roller portions 82 and 87 may interfere with the conveying portion 20. In consideration of this point, in the present invention, the cutting section frame 30 and the transfer section frame 10 are separately constructed without being integrally formed. Therefore, if the transporting section frame 10 is further pushed to the left side from the position shown in Fig. 1 to open the transporting roller sections 82 and 87 while the transporting section frame 10 is separated from the cutting section frame 30, Can be avoided.

As an example of the structure that moves together with the moving roller portions 82 and 87, an upper movable protecting plate 84 fixed together with the upper moving roller portion 82 may be mentioned. The upper protection plate for shielding and protecting the upper surface of the processing area CA is formed in a manner such that the roller assembly 80 is divided into the fixing roller portions 81 and 86 and the moving roller portions 82 and 87, The protection plate 83 and the upper movable protection plate 84 are divided and the upper movable protection plate 84 can move together with the moving roller portion. The conveying guide plate 90 of the workpiece W can also be divided into a fixed conveying guide plate 91 and a movable conveying guide plate 92. [ Of these, the conveying guide plate 92 can also move together with the upper movable plate 84 and the moving roller portions 82 and 87.

Hereinafter, the structure related to the conveyance of the conveyance guide plate 90 and the workpiece will be described.

Fig. 13 is a front perspective view showing a related structure for showing an area for machining and transferring a workpiece in a cutting portion assembly, Fig. 14 is a plan view showing a conveyance guide plate of the present invention, Fig. Fig. 16 is a right side view of the conveyance guide plate of Fig. 14, Fig. 17 is a perspective view of the push bar 21 for conveying the workpiece on the conveyance guide plate, and Fig. 18 is a plan view showing the push bar of Fig.

The conveying guide plate 90 is installed in a section where the cutting direction of the band saw 44 is aligned by the upper roller portions 81 and 82 and the lower roller portions 86 and 87. The conveying guide plate 90 is divided into a fixed conveying guide plate 91 and a moving conveying guide plate 92. The conveying guide plate 90 is disposed to extend in a direction corresponding to the conveying direction w of the workpiece. The division positions of the fixed conveyance guide plate 91 and the movable conveyance guide plate 92 correspond to the division positions of the roller assembly 80 and the upper protection plates 83 and 84, 44 are aligned. The movable conveyance guide plate 92 can be detached from the fixed conveyance guide plate 91 when it moves together with the movable roller portions 82 and 87 as described above.

An inner protective plate 89 for protecting the inner surface of the machining area is provided on the inner side of the fixed transfer guide plate 91. The upper portion of the inner protective fixing plate 89 is connected and fixed to the upper fixed protection plate 83 (see FIG. 2, etc.).

The through hole h through which the band saw 44 passes is formed when the fixed conveying guide plate 91 and the moving conveying guide plate 92 are fixed to each other. A plurality of conveying guide grooves 901 are provided on the conveying guide plate 90 in a direction corresponding to the conveying direction of the workpiece. In the embodiment of the present invention, 30 band saws are used, and correspondingly, 31 transport guide grooves 901 are provided. The conveyance guide groove 901 is provided at a position where the band saw 44 passes through the conveyance guide plate 90 or at a position displaced from the through hole h and is supported by the fixed conveyance guide plate 91 and the movable conveyance guide plate 92 are engaged with each other, the conveyance guide grooves 901 provided on the conveyance guide plates 91, 92 are connected to each other.

The push bar 21 that feeds the workpiece placed on the conveying guide plate 90 in a pushing manner along the conveying direction is provided on the conveying section 20 of the conveying section frame 10 and moves forward and backward in the conveying direction, . The push bar has a shape corresponding to that of the long rectangular conveying guide plate and moves on the conveying guide plate. A plurality of avoidance grooves (22) are provided in the longitudinal direction corresponding to the conveying direction from the leading end to the proximal end of the conveying guide plate. The avoidance groove 22 is provided to prevent the band saw 44 and the push bar 21 in the machining area CA from interfering with each other in the process of pushing the work piece by the push bar 21, In the embodiment, a structure using 30 band saws is illustrated, and correspondingly, 30 avoidance grooves 22 may be provided.

The lengths of the avoidance grooves 22 may be all the same. However, when the portion of the cantilever beam 24 formed by the avoidance groove 22 is too long, it is impossible to exclude a case where the cantilever beam 23 is not rigid enough to be shaken or deformed. Therefore, as shown in Figs. 17 and 18 It is preferable to set the length of the avoiding groove 22 so as to correspond to the arrangement shape of the band saw. The guide protrusion 23 is formed to protrude downward from the lower end of the distal end of the cantilever portion 24 and the guide protrusion 23 is moved along the transport direction in a state of being fitted in the transport guide groove 901 of the transport guide plate 90 It is possible to prevent the cantilever beam from being shaken or deformed even when the cantilever 24 is long and hard to secure rigidity.

When the cantilever beam is shaken or deformed and contacts the band saw 44, wear occurs. If the workpiece W is a food such as a frozen meat, impurities may be mixed into the food. It is very important to secure the rigidity.

Such a push bar may be provided with 31 bar-shaped cantilever members having the same length as each other, and 30 blocks corresponding to the thickness of the avoidance groove 22 may be assembled between these cantilever members. Also, the length of the avoidance groove 22 can be determined depending on how the length of the block is set. The push bar can be made of metal or made of plastic, and various other materials can be used.

On the other hand, a problem may occur that the cutting direction of the workpiece W is changed in the process of cutting the workpiece W in the transport direction. If the rear surface of the workpiece W to be pushed by the push bar 21 is not completely flat and uneven, the workpiece W being conveyed by the band saw sequentially positioned along the conveyance direction is sliced by one slice The possibility that the workpiece W is twisted slightly to the side can not be excluded. In the embodiment of the present invention, as shown in FIGS. 14 and 16, a transfer jig 93 is provided to move along one side end of the transfer guide plate 90 in the transfer direction w, So that the workpiece W can be transferred in a state where one side of the workpiece W is held firmly. Since the transfer jig 93 is provided on the side where the cutting is lastly performed on the left and right sides of the workpiece, even if only one side of the workpiece is held by the transfer jig 93, the workpiece is cut from the opposite side to the side where the transfer jig 93 is installed The transfer jig 93 keeps a state in which the workpiece held by the transfer jig 93 is caught until all the 30 cutting operations are sequentially performed. Thus, the cutting direction is prevented from being distorted in the process of cutting the workpiece.

The transfer jig 93 may move independently of the push bar 21 or move in conjunction with the push bar 21. The transfer jig 93 is merely moved in the conveying direction so that the workpiece is merely immersed and the push bar 21 pushes the workpiece W so that the transfer jig 93 that holds the workpiece by the force of the push- ) Can also move together. Further, when the transfer jig is configured to move in a direction opposite to the transfer direction in a state in which no external force is applied to the transfer jig by utilizing the structure of a spring or the like, when the gripping of the transferred workpiece is canceled, It is possible to automatically return to the position.

According to the embodiments of the present invention as described above, it is possible to cut as many times as the number of band saws simultaneously by implementing the cutting device with a simple structure while using a plurality of band saws. Also, when replacing the band saw or the other parts frequently replaced most frequently, it is easy to disassemble the device for maintenance and replacement of these parts.

In the present invention, since a plurality of band saws (30 in the embodiment) rotating at high speed are used, even if only one of them is cut off, the band saw may tangle or twist on other parts of the apparatus. Therefore, there is a need to immediately stop the apparatus when any one of the plurality of band saws is cut off. Therefore, in the present invention, a safety device is implemented in a tensioner portion that individually applies tension to each band saw.

Fig. 19 is a right side view of the tensioner portion of the present invention, Fig. 20 is a side perspective view of the tensioner portion of Fig. 19, leaving only one tensioner pulley unit and the remaining tensioner pulley units omitted, Fig. Fig. 22 is an enlarged perspective view of the tensioner unit of Fig. 21, and Fig. 22 is an axial view of the tensioner unit of Fig. 21. Fig.

19 and 22, the tensioner portion 60 is moved in the ef direction (see FIG. 22) to the tensioner supporting shaft 46, which is supported at both ends by the fixing plate 41 and the detachable plate 42, As shown in Fig. The direction e is the direction in which the tension is applied, and the direction f is the direction in which the tension is released. A pair of tensioner support shafts 67 are rotatably supported on the tensioner support shafts 46 at both side ends of the tensioner portion 60. The pair of tensioner support shafts 46 are connected to the presser frame 68, Section 69 and the stopper 671, respectively.

4, a tension pressing arm support shaft 48 is provided at a position slightly spaced apart from the tensioner supporting shaft 46 in the fixing plate 41 and the detachable plate 42. The end of the tension pressing arm support shaft 48 is provided with a square bolt head, and it is possible to turn the tension pressing arm support shaft 48 by fastening a tool thereon. The first tension arm 64 is supported by a tension pressing arm supporting shaft 48 so as to be integrally movable with the tension pressing arm supporting shaft 48 . A second tension arm 65 is connected to the other end of the tension arm 62 via a joint pin 66. The other end of the tension arm 66 is connected to the press frame 68 ). The first edge of the one end of the tensioned second arm 65 is angled and the second edge is formed with the curved surface portion 651 so that the tensioned first arm 64 and the second arm 65 It is possible to fold it in one direction. 4 shows a state in which the two arms are extended in the shape of "- - ". However, it is possible to fold the two arms to form a"? "Shape toward the curved portion 651. When the two arms are folded or unfolded, a rectangular bolt head provided at the end of the tension pressing arm support shaft 48 described above can be utilized.

The tensioner supporting frame 67, the stopper 671, the pressurizing frame 68 and the cut-off detecting portion 69 are integrally rotated in the e direction when the tension-applied first arm 64 and the second arm 65 are extended The tensioner supporting frame 67, the stopper 671, the pressing frame 68 and the cut-off detecting portion 69 integrally rotate in the direction f when the first tension arm 64 and the second arm 65 are folded do.

Although the tensioner arm plate 63 is operated separately from the tensioner support frame 67, the stopper 671, the pressurizing frame 68 and the cut-off detecting portion 69, the tensioner arm plate 63 is urged from the pressurizing frame 68 by the elastic pressing member 681 And behaves in a pressurized state. The pressing frame 68 is advanced so that the pressing block 631 fixed to the tensioner arm plate 63 by the elastic pressing member 681 is pressed against the tensioner arm plate 63 by pressing the first tension arm 64 and the second arm 65, The tensioner arm plate 63 is pressed and the tensioner pulley 61 provided on the tensioner arm plate 63 presses the band saw 44. Conversely, when the tension-applied first arm 64 and the second arm 65 are folded, the pressing frame 68 retracts and the elastic pressing member 681, which is pressing the pressing block 631, is loosened, The pressing on the plate 63 is released. The structure in which the first tension arm 64 and the second arm 65 are folded and folded is very convenient in the process of replacing the band saw. The tensioner pulley 61 is sufficiently retracted in a state where the first arm 64 and the second arm 65 are folded together, so that it is convenient to replace the band saw.

On the other hand, the cut-off detecting portion 69 is provided with a contact portion 691, and the contact portion 691 is pressed by the sensing block 632 in the tensioner arm plate 63 to keep the contact pressed. In this state, the tensioner pulley 61 and the tensioner arm plate 63 are jumped out greatly in the direction e by the elastic pressing member 681. At this time, the pressing of the sensing block 632 And the contact point is cut off at the contact portion 691. [ If the contact point is disconnected from any of the 30 contact points, the power supplied to the drive motor 49 is cut off to stop the apparatus.

A stopper 671 is provided at the lower front end of the tensioner support frame 67 to prevent the band saw from being excessively splashed when the tensioner pulley 61 and the tensioner arm plate 63 are splashed. When the tensioner pulley 61 and the tensioner arm plate 63 are jammed, the step formed at the lower end of the pressing block 631 is caught by the stopper 671, so that the tensioner pulley 61 and the tensioner arm plate 63 are excessively It is prevented from splashing.

The pressing block 631 and the elastic pressing member 681 are provided separately to the plurality of tensioner pulleys 61. [ For example, if 30 tensioner pulleys 61 are provided, 30 elastic urging members 681 are also provided. Accordingly, it is possible to individually adjust the tension force on the plurality of tensioner pulleys 61. It is possible to finely adjust the pressing force with respect to each tensioner pulley in such a manner that 30 bolts (not shown) of the pressurizing frame 68 individually pressing the 30 elastic pressing members 681 individually are tightened or loosened.

According to the present invention, when any one of a plurality of band saws is broken, the cutting device can be automatically stopped by sensing it immediately, and therefore, safety is high.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the scope of the invention is not limited to the disclosed exemplary embodiments. It is obvious that a transformation can be made. Although the embodiments of the present invention have been described in detail above, the effects of the present invention are not explicitly described and described, but it is needless to say that the effects that can be predicted by the configurations should also be recognized.

10: Feeder frame
20:
21: Push bar
22: Avoiding Home
23: Guide projection
24: Cantilever
30: Cutting frame
31: Support arm
32: Hinge
40: Cutting subassembly
41: Fixing plate
42: Desorption plate
43:
44: band saw
45: Driving pulley shaft
46: Tensioner support shaft
47: idler shaft
48: Tension pressure arm support shaft
49: Driving motor
50: driving pulley portion
51: Driving pulley
60: tensioner part
61: tensioner pulley
62: tensioner pulley shaft
63: tensioner arm plate
631: Press block
632: Detection block
64: Tension pressurized first arm
65: Tension pressurized second arm
651:
66: joint pin
67: tensioner supporting frame
671: Stopper
68: Press frame
681: Elastic pressing member
69:
691: Contact part
70: Idler Department
71: idler pulley
80: Roller assembly
801: Pivot pin
802: anti-rotation pin
803: Fixed side roller unit
8031: first side support roller
8032: Rear support roller
804: movable side roller unit
8041: Second side support roller
805: Fixed-side roller supporting plate
806: movable roller supporting plate
81: upper fixing roller portion
82: upper moving roller section
83: upper fixed shroud
84: upper movable plate
85: handle shaft
86: Lower fixing roller portion
87: Lower moving roller section
89: Inner protective plate
90: conveying guide plate
901: Feed guide groove
91: Fixed feed guide plate
92: moving conveyance guide plate
93: Feed jig
W: Workpiece
w: Feed direction
h: Through hole
CA: machining area

Claims (7)

A drive pulley portion 50 provided on the drive pulley shaft 45;
An idler portion (70) axially installed on an idler shaft (47) positioned vertically away from the drive pulley portion;
A plurality of band saws (44) wound around the drive pulley portion and the idler portion along the axial direction;
A roller assembly disposed between the driving pulley section and the idler section and spaced apart from each other with a machining area CA of the workpiece interposed therebetween to switch the cutting direction of the band saw across the driving pulley section and the idler section, (80)
Wherein the drive pulley portion and the idler portion are disposed obliquely inclined in the width direction of the machining area with respect to the conveying direction of the workpiece so that the band saw is sequentially disposed along the conveying direction of the workpiece.
The method according to claim 1,
The roller assembly (80)
A plurality of first side support rollers 8031 for supporting the first side surfaces of the plurality of band saws and a plurality of rear support rollers 8032 for supporting the rear surfaces of the plurality of band saws, (803);
And a second roller unit (804) provided with a plurality of second side support rollers (8041) for respectively supporting second side surfaces of the plurality of band saws,
Wherein the first roller unit and the second roller unit are detachably secured to each other.

The method of claim 2,
The first side support roller 8031 and the second side support roller 8041 are installed at positions opposite to each other with a band saw interposed therebetween,
Wherein the rear support roller (8032) is disposed closer to the machining area (CA) of the workpiece (W) than the first side support roller (8031).

A plurality of band saws 44 are spaced apart from each other in the width direction of the processing area CA of the workpiece W. The plurality of band saws are sequentially arranged along the conveying direction w of the workpiece W,
A plurality of first guide portions are provided along a conveyance direction on the conveyance guide plate 90 provided in the machining area of the workpiece to guide the workpiece in the conveyance direction, and the first guide portion is provided at a position deviated from the position of the band saw And,
A push bar 21 provided with a plurality of avoidance grooves 22 for passing the workpiece W through an area where the band saw is disposed and avoiding the band saw is provided with a second guide And a cutting device having an additional portion.
The method of claim 4,
The first guide portion is a guide groove 901 formed along the conveying direction of the workpiece,
And the second guide portion is a guide protrusion (23) which is formed in the vicinity of the lower end of at least the front end of the push bar and is guided forward and backward in a state of being fitted in the guide groove.
The method of claim 4,
Wherein the plurality of band saws are arranged obliquely and sequentially from one end to the other end along the conveying direction (w) of the workpiece,
And a transfer jig (93) is provided at the other end of the processing area (CA), the transfer jig (93) moving along the transfer direction of the workpiece while holding the other end of the workpiece.
A drive pulley portion 50 provided on the drive pulley shaft 45;
An idler portion (70) axially installed on an idler shaft (47) positioned apart from the drive pulley portion;
A tensioner part (60) formed on the tensioner pulley shaft (46) spaced apart from the driving pulley part and the idler part; And
And a plurality of band saws (44) wound around the drive pulley portion, the tensioner portion and the idler portion,
The plurality of band saws are wound on a plurality of tensioner pulleys (61) rotatably provided on the other side of a plurality of tensioner arm plates (63), one side of which is supported on a tensioner pulley shaft (46)
Each of the tensioner arm plates (63) is elastically pressed in a direction to apply tension to the band saw,
And a cutting detection unit (69) for detecting when at least one of the plurality of tensioner arm plates (63) is turned over a predetermined range in a direction of applying tension to the band saw.

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