A conveyor system for Frieza, and Frieza

Abstract

In a conveyor system for Frieza, vibration generation in the conveyor belt is reduced. [Solution] A conveyor device for a freezer according to at least one embodiment of the present disclosure comprises an endless mesh belt, a pair of direction changing shafts provided at different heights and spaced apart in the direction of movement for changing the direction of movement of the mesh belt, and a vibration-damping member provided between the pair of direction changing shafts so as to contact the mesh belt from the thickness direction of the mesh belt.

Description

Technical Field

[0001] The present disclosure relates to a conveyor device for a freezer and a freezer.

Background Art

[0002] As a freezer capable of cooling or freezing an object to be cooled, particularly food, a freezer capable of cooling or freezing an object to be cooled placed on the forward path portion of a conveyor belt for conveyance by cold air is known (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] When the conveyor belt for conveyance vibrates during movement, the tension of the conveyor belt fluctuates, and in some cases, the tension may temporarily disappear. When the tension disappears, the force for moving the conveyor belt in the moving direction no longer acts on the conveyor belt, so the conveyor belt temporarily stops. Then, when the tension of the conveyor belt acts again, the stopped conveyor belt starts to move. When the conveyor belt starts to move in this way, for example, undesired vibrations occur due to the difference between the static friction coefficient and the dynamic friction coefficient with the rail that supports the conveyor belt from below.

[0005] In view of the above circumstances, at least one embodiment of the present disclosure aims to reduce the occurrence of vibration of the conveyor belt in a conveyor device for a freezer.

Means for Solving the Problems

[0006] (1) A conveyor for Frieza according to at least one embodiment of the present disclosure is An endless mesh belt, A pair of direction changing axes, positioned at different heights from each other and spaced apart in the direction of movement, for changing the direction of movement of the mesh belt, A vibration-damping member is provided between the pair of direction-changing axes so as to contact the mesh belt from the thickness direction of the mesh belt, It is equipped with.

[0007] (2) Frieza according to at least one embodiment of the present disclosure is A conveyor system for Frieza with the configuration described in (1) above, It is equipped with. [Effects of the Invention]

[0008] According to at least one embodiment of the present disclosure, vibrations of the conveyor belt can be reduced in a conveyor system for Frieza. [Brief explanation of the drawing]

[0009] [Figure 1] This is an overall configuration diagram of Frieza as seen from the side according to one embodiment. [Figure 2] This figure shows an example of a conveyor belt for a belt conveyor according to one embodiment. [Figure 3] This diagram schematically shows the upstream region in the conveying direction of a belt conveyor according to one embodiment. [Figure 4] This is a schematic plan view of a vibration isolation device positioned between a driven shaft and an idler shaft located next to the driven shaft on the upstream side in the direction of movement of the conveyor belt. [Figure 5] This is a cross-sectional view taken along the VV arrow in Figure 4. [Modes for carrying out the invention]

[0010] Hereinafter, several embodiments of this disclosure will be described with reference to the attached drawings. However, the dimensions, materials, shapes, relative arrangements, etc., of the components described or shown in the drawings as embodiments are not intended to limit the scope of this disclosure, but are merely illustrative examples. For example, expressions describing relative or absolute arrangements such as "in a certain direction," "along a certain direction," "parallel," "orthogonal," "center," "concentric," or "coaxial" should not only strictly describe such arrangements, but also describe states of relative displacement with tolerances or angles or distances that allow for the same function to be achieved. For example, expressions such as "identical," "equal," and "homogeneous" that describe things being in an equal state not only describe a state of being strictly equal, but also describe a state in which there is a tolerance or a difference that is sufficient to achieve the same function. For example, expressions describing shapes such as squares or cylinders shall not only represent geometrically precise shapes such as squares or cylinders, but also shapes that include protrusions, chamfers, etc., to the extent that the same effect can be achieved. On the other hand, expressions such as "to possess," "to be equipped with," "to have," "to include," or "to have" a single component are not exclusive expressions that exclude the existence of other components.

[0011] Figure 1 is an overall configuration diagram of Frieza 1 according to one embodiment, viewed from the side. One embodiment of the Freezer 1 is a freezer capable of cooling or freezing an object to be cooled, particularly food, and comprises a housing 3 that houses the main components of the Freezer 1, a belt conveyor 5 for transporting the object to be cooled (not shown), a heat exchanger (not shown) for cooling the air, and a fan (not shown) for circulating the cooled air (cold air) cooled by the heat exchanger within the Freezer 1.

[0012] In one embodiment of the Freeza 1, the housing 3 is configured to separate the inside and outside of the Freeza 1 and to retain cold air inside. The freezer 1 according to one embodiment is configured to cool an object to be cooled (not shown) by blowing cold air from a fan (not shown) onto the object to be cooled from at least one of above or below the object to be cooled placed on the forward path portion 7a of the conveyor belt 7 of the belt conveyor 5. In the following description, the conveying direction of the object to be cooled (not shown) by the conveyor belt 7 is also referred to as the conveying direction of the conveyor belt 7 or simply the conveying direction. Also, in the following description, the object to be cooled (not shown) is simply referred to as the object to be cooled.

[0013] In the freezer 1 according to one embodiment, a part of the region on the upstream side in the conveying direction within the forward path portion 7a of the conveyor belt 7 is exposed outside the housing 3 for placing the object to be cooled on the conveyor belt 7. In the freezer 1 according to one embodiment, a part of the region on the downstream side in the conveying direction within the forward path portion 7a of the conveyor belt 7 is exposed outside the housing 3 for sending the object to be cooled on the conveyor belt 7 to the next process.

[0014] (Belt conveyor 5) In the freezer 1 according to one embodiment, the belt conveyor 5 includes a conveyor belt 7 for conveying the object to be cooled, a drive motor (not shown) for driving the conveyor belt 7, and a direction conversion shaft 11 for converting the moving direction of the conveyor belt 7. The direction conversion shaft 11 includes a drive shaft 9 for driving the conveyor belt 7 by the driving force of a drive motor (not shown), a driven shaft 13 disposed at the upstream end of the forward path portion 7a of the conveyor belt 7, and at least one idler shaft 15 disposed so as to contact the conveyor belt 7 from the inside of the conveyor belt 7 (or, depending on the layout of the orbit of the conveyor belt 7 due to the direction conversion of the conveyor belt 7, from the outside of the conveyor belt 7) wound around the drive shaft 9 and the driven shaft 13 in the return path portion 7b of the conveyor belt 7. In the freezer 1 shown in FIG. 1, two idler shafts 15 are provided inside the conveyor belt 7 in a state of being spaced apart from each other in the conveying direction.

[0015] FIG. 2 is a diagram showing an example of the conveyor belt 7 of the belt conveyor 5 according to one embodiment. The conveyor belt 7 is, for example, an endless belt-shaped mesh belt formed by knitting metal wires into a mesh shape, and the object to be cooled can be placed thereon. For example, the conveyor belt 7 has a plurality of ribs 71 extending in the width direction Drw of the conveyor belt 7 and arranged at intervals in a direction orthogonal to the width direction Drw, and a spiral portion 73 arranged to be spirally wound around two adjacent ribs 71 in a direction orthogonal to the width direction Drw from the outside. Therefore, the spiral portion 73 includes a spiral portion 73a located on the front side in the drawing in FIG. 2 with respect to the rib 71 and a spiral portion 73b located on the back side in the drawing in FIG. 2 with respect to the rib 71, and the spiral portion 73a located on the front side along the width direction Drw and the spiral portion 73b located on the back side are arranged alternately. The end portions of the ribs 71 in the width direction Drw are connected to the end portions of the spiral portion 73 in the width direction Drw, for example, by welding.

[0016] In the conveyor belt 7 according to one embodiment, the length of one link of the conveyor belt 7 is the arrangement pitch of two adjacent ribs 71 in a direction orthogonal to the width direction Drw. In the following description, the width direction Drw of the conveyor belt 7 is also simply referred to as the width direction Drw.

[0017] The conveyor belt 7 is driven by a drive shaft 9 driven by a drive motor (not shown), and can convey the object to be cooled placed on the forward path portion 7a of the conveyor belt 7 from the upstream side to the downstream side in the conveying direction. Note that the conveyor belt 7 of the belt conveyor 5 according to some embodiments allows cold air to pass through in the thickness direction of the conveyor belt 7 with a relatively small pressure loss, can be wound around the drive shaft 9 and the direction-changing shaft 11 relatively easily, and is not limited to the structure shown in FIG. 2 as long as it has a structure that meshes with the teeth of a sprocket for driving the conveyor belt 7.

[0018] (Problems in the belt conveyor 5) As described above, the conveyor belt 7 has a pitch of reinforcing ribs 71 that determines the length of one link of the conveyor belt 7. When the conveyor belt 7 wraps around the direction change shaft 11, the portion of the helical section 73 that is wrapped around the reinforcing ribs 71 rotates around the reinforcing ribs 71. Therefore, based on the relationship between the speed at which the conveyor belt 7 moves and the pitch of the reinforcing ribs 71, there is a period in which the phenomenon of the helical section 73 rotating around the reinforcing ribs 71 occurs when the conveyor belt 7 wraps around the direction change shaft 11. When this period approaches the natural frequency or an integer multiple of the natural frequency of the conveyor belt 7's vibration, with two adjacent direction-changing axes 11 along the conveyor belt 7's movement path as nodes of vibration, vibration of the conveyor belt 7 is induced between the two adjacent direction-changing axes 11. The natural frequency is affected by the distance between the two adjacent direction-changing axes 11 and the tension of the conveyor belt 7.

[0019] When the conveyor belt 7 vibrates while moving, the tension in the conveyor belt 7 fluctuates, and in some cases, the tension may temporarily disappear. When the tension disappears, the force that would move the conveyor belt 7 in the direction of movement no longer acts on the conveyor belt 7, causing the conveyor belt 7 to temporarily stop. After the tension in the conveyor belt 7 acts again, the stopped conveyor belt 7 begins to move. In this way, when the conveyor belt 7 starts to move, unwanted vibrations occur due to the difference between the coefficient of static friction and the coefficient of kinetic friction between the rail and the conveyor belt 7. Note that the thickness direction of the conveyor belt 7 is, for example, the depth direction of the paper in Figure 2.

[0020] Therefore, in the belt conveyor 5 according to one embodiment, the vibration-damping member 61 is brought into contact with the conveyor belt 7 from the thickness direction of the conveyor belt 7 between a pair of direction-changing shafts 11. In other words, the belt conveyor 5 according to one embodiment includes a vibration damping device 60 that includes the vibration damping member 61.

[0021] In one embodiment of the belt conveyor 5, as shown in Figure 1, for example, vibration isolation devices 60 are arranged between the drive shaft 9 and the idler shaft 15 located next to the drive shaft 9 on the downstream side in the direction of movement of the conveyor belt 7, and between the driven shaft 13 and the idler shaft 15 located next to the driven shaft 13 on the upstream side in the direction of movement. Since these two vibration isolation devices 60 have similar configurations, the following description will focus on the configuration of the latter vibration isolation device 60, and the description of the configuration of the former vibration isolation device 60 will be omitted. Note that the direction of movement of the conveyor belt 7 is clockwise in Figures 1 and 3.

[0022] Figure 3 is a schematic diagram showing the upstream region in the conveying direction of a belt conveyor 5 according to one embodiment. Figure 4 is a schematic plan view of a vibration isolation device 60 positioned between the driven shaft 13 and the idler shaft 15, which is located next to the driven shaft 13 on the upstream side in the direction of movement of the conveyor belt 7. Figure 5 is a cross-sectional view taken along the VV line in Figure 4.

[0023] (Vibration isolation device 60) In one embodiment of the belt conveyor 5, the vibration isolation device 60 includes a shaft body 63 extending in the width direction Drw of the conveyor belt 7, a plurality of cylindrical members 65 as vibration isolation members 61, and a support portion 67 for supporting the shaft body 63. Each of the plurality of cylindrical members 65 has a through hole 61h into which the shaft body 63 is loosely fitted, is configured to contact the conveyor belt 7, and is arranged in line in the width direction Drw.

[0024] (Shaft body 63) In one embodiment of the vibration isolation device 60, the shaft body 63 is an axial member extending in the width direction Drw, and both ends are supported by support parts 67, which will be described later. Each of the support parts 67 is attached to a frame of the housing 3 (not shown). In Figure 5, the cross-section of the shaft body 63 is shown as a solid member, but the shaft body 63 may be a hollow member or a solid member. The shaft body 63 is formed of, for example, stainless steel, but it may be made of a metal other than stainless steel, or of resin, or of carbon fiber. Furthermore, for reasons to be explained later, it is preferable that the shaft body 63 be supported in a way that prevents rotation, but it may also be pivotally supported.

[0025] (Cylindrical member 65) In one embodiment of the vibration isolation device 60, each of the cylindrical members 65 is a cylindrical member with no irregularities on its outer circumferential surface 65o, and has a through hole 61h into which the shaft body 63 is loosely fitted, as described above. Each of the cylindrical members 65 is made of, for example, resin.

[0026] In one embodiment of the vibration isolation device 60, the inner circumferential surface 65i of the cylindrical member 65 is in contact with the outer circumferential surface 63o of the shaft body 63 in a manner that allows for separation and retraction. The inner diameter Dic of the cylindrical member 65 is larger than the outer diameter Dos of the shaft body 63, and the dimensional difference between the inner diameter Dic of the cylindrical member 65 and the outer diameter Dos of the shaft body 63 is larger than, for example, the clearance fit in the JIS standard.

[0027] In one embodiment of the vibration isolation device 60, the width dimension Drw of each cylindrical member 65 is, for example, equal to or greater than the inner diameter Dic of the cylindrical member 65. In one embodiment of the vibration isolation device 60, each of the cylindrical members 65 is arranged in the width direction Drw with respect to the shaft body 63. In one embodiment of the vibration isolation device 60, adjacent cylindrical members 65 in the width direction Drw are rotatable independently of each other.

[0028] (Support part 67) In one embodiment of the vibration isolation device 60, each of the support parts 67 is a member that supports the shaft body 63 so that it cannot rotate. In the example shown in Figures 3 and 4, the support parts 67 are plate-shaped members, but the support parts 67 may be members that are not plate-shaped. In the examples shown in Figures 3 and 4, the support portion 67 is fixed by holding the vicinity of the end of the shaft body 63, for example, with a U-bolt.

[0029] In one embodiment, the support portion 67 is attached to a frame (not shown) of the housing 3 by mounting bolts 69, as shown in Figure 3, for example. In one embodiment, the support portion 67 has an elongated hole 67a through which a mounting bolt 69 is inserted. The support portion 67 is configured to allow adjustment of its mounting position to a frame (not shown) of the housing 3 by changing the relative position between the elongated hole 67a and the mounting bolt 69. In other words, in the support portion 67 of one embodiment, the elongated hole 67a and the mounting bolt 69 constitute an adjustment portion 68 for adjusting the distance between the shaft body 63 and the conveyor belt 7.

[0030] In one embodiment of the vibration isolation device 60, the position of the cylindrical member 65 relative to the conveyor belt 7 can be adjusted by adjusting the mounting position of the support portion 67 on a frame (not shown) of the housing 3.

[0031] In one embodiment of the vibration isolation device 60, the cylindrical member 65 is preferably positioned relative to the conveyor belt 7 as follows, with reference to the position of the conveyor belt 7 when the conveyor belt 7 is stationary and not moving, that is, when the conveyor belt 7 is not vibrating.

[0032] For example, the cylindrical member 65 may be positioned so as to be in contact with the conveyor belt 7, that is, so that the distance between the outer circumferential surface 63o of the shaft body 63 and the surface of the conveyor belt 7 is the same as the radial thickness of the cylindrical member 65.

[0033] For example, the cylindrical member 65 may be positioned so as to contact and press against the conveyor belt 7, that is, so as to be positioned such that the distance between the outer circumferential surface 63o of the shaft body 63 and the surface of the conveyor belt 7 is less than the radial thickness of the cylindrical member 65. In this case, the distance between the outer circumferential surface 63o of the shaft body 63 and the surface of the conveyor belt 7 may be 0 or less, that is, a distance at which the outer circumferential surface 63o of the shaft body 63 and the surface of the conveyor belt 7 are in contact, or a distance at which the outer circumferential surface 63o of the shaft body 63 contacts the surface of the conveyor belt 7 and presses against the conveyor belt 7.

[0034] For example, the cylindrical member 65 may be positioned so as to be slightly away from the conveyor belt 7, that is, so that the distance between the outer circumferential surface 63o of the shaft body 63 and the surface of the conveyor belt 7 is greater than the radial thickness of the cylindrical member 65. In this case, the distance between the outer circumferential surface 63o of the shaft body 63 and the surface of the conveyor belt 7 should be such that when the conveyor belt 7 vibrates, the surface of the conveyor belt 7 comes into contact with the cylindrical member 65, thereby reducing the vibration of the conveyor belt 7.

[0035] In this embodiment of the belt conveyor 5, the vibration-damping member 61 is brought into contact with the conveyor belt 7 from the thickness direction of the conveyor belt 7 between the pair of direction-changing shafts 11, thereby reducing unwanted vibrations caused by the stopping and starting of movement of the conveyor belt 7.

[0036] In one embodiment of the Freeza 1, since it is equipped with the belt conveyor 5 according to the above-described embodiment, it is possible to reduce unwanted vibrations caused by the stopping and starting of the conveyor belt 7, and to operate the Freeza 1 stably.

[0037] In one embodiment of the belt conveyor 5, as described above, the vibration isolation device 60 includes a plurality of cylindrical members 65 arranged in the width direction Drw and configured to contact the conveyor belt 7. This allows multiple cylindrical members 65 to come into contact with the conveyor belt 7 over a relatively wide area in the width direction Drw, thereby effectively reducing vibrations in the conveyor belt 7.

[0038] In the belt conveyor 5 according to one embodiment, as described above, the inner circumferential surface 65i of the through hole 61h of the cylindrical member 65 is in contact with the outer circumferential surface 63o of the shaft body 63 so as to be able to move away from it. As a result, the inner circumferential surface 65i of the cylindrical member 65 and the outer circumferential surface 63o of the shaft body 63 become slidable relative to each other, and a plurality of cylindrical members 65 become rotatable relative to the shaft body 63 with a relatively simple configuration. Furthermore, according to the belt conveyor 5 of one embodiment, the possibility of the cylindrical member 65 becoming stuck to the shaft body 63 due to the contraction of the cylindrical member 65, or the possibility of the cylindrical member 65 becoming stuck to the shaft body 63 due to freezing between the inner circumferential surface 65i of the cylindrical member 65 and the outer circumferential surface 63o of the shaft body 63, can be reduced. As a result, sliding between the shaft body 63 and the cylindrical member 65 can be ensured for a relatively long period of time.

[0039] In one embodiment of the belt conveyor 5, for example, variations in the speed at which the conveyor belt 7 moves in the direction of movement may occur depending on the position of the conveyor belt 7 in the width direction Drw, which may result in differences in the rotational speeds of cylindrical members 65 positioned at different locations in the width direction Drw. If, for example, rotational driving force is transmitted between two cylindrical members 65 due to this difference in rotational speed, torque will be generated in each of the two cylindrical members 65 to reduce the difference in rotational speed between them. If this torque applies an undesirable force to the conveyor belt 7, it may induce meandering or skewing of the conveyor belt 7.

[0040] According to one embodiment of the belt conveyor 5, since the multiple cylindrical members 65 can rotate independently of each other, even if there is variation in the speed at which the conveyor belt 7 moves in the direction of movement due to the position of the conveyor belt 7 in the width direction Drw, for example, even if a difference in rotational speed occurs between cylindrical members 65 positioned at different locations in the width direction Drw, the difference in rotational speed makes it difficult for rotational driving force to be transmitted between the cylindrical members 65. Therefore, according to the belt conveyor 5 of one embodiment, the possibility of inducing problems such as meandering or slanting of the conveyor belt 7 can be reduced.

[0041] In one embodiment of the belt conveyor 5, since the shaft body 63 is non-rotatable, even if there is a difference in rotational speed between cylindrical members 65 arranged at different positions in the width direction Drw, the transmission of rotational driving force between the cylindrical members 65 via the shaft body 63 will not occur. Therefore, according to the belt conveyor 5 of one embodiment, the possibility of inducing problems such as meandering or slanting of the conveyor belt 7 can be reduced.

[0042] In one embodiment of the belt conveyor 5, an adjustment unit 68 is provided for adjusting the distance between the shaft body 63 and the conveyor belt 7, so that the distance between the conveyor belt 7 and the cylindrical member 65 can be adjusted to a distance suitable for reducing vibration of the conveyor belt 7. This effectively reduces the generation of vibration of the conveyor belt 7.

[0043] (Regarding adjustment device 90) In some embodiments of the belt conveyor 5, as shown in Figure 3, an adjustment device 90 for adjusting the tension of the conveyor belt 7 is provided. This makes it easier to set the tension of the conveyor belt 7 within the desired tension range.

[0044] In one embodiment of the belt conveyor 5, the adjustment device 90 is configured to adjust the tension of the conveyor belt 7 by, for example, changing the position of one of the multiple direction-changing shafts 11. In some embodiments of the belt conveyor 5, the adjustment device 90 is configured to adjust the tension of the conveyor belt 7 in the return path portion 7b by changing the position of an idler shaft 15 located next to the driven shaft 13 on the upstream side in the direction of movement of the conveyor belt 7.

[0045] In one embodiment of the belt conveyor 5, the adjustment device 90 is configured to move and fix the idler shaft 15, whose position is to be changed, to any position within the adjustment range. In the example shown in Figure 3, the adjustment device 90 is configured to move and fix the position of the idler shaft 15 in a direction parallel to the conveying direction, for example, as indicated by arrow a.

[0046] (Regarding other forms of the vibration-damping member 61) In the vibration isolation device 60 according to the above-described embodiment, the vibration isolation member 61 was a plurality of cylindrical members 65 that could rotate independently of each other. However, the vibration isolation device 60 may also include vibration isolation members 61 of other forms. For example, the vibration isolation device 60 may include a non-rotatable shaft body 63 and a cylindrical member attached to the shaft body 63 that is non-rotatable relative to the shaft body 63. In this case, the distance between the outer circumferential surface of the cylindrical member and the surface of the conveyor belt 7 should be such that when the conveyor belt 7 vibrates, the surface of the conveyor belt 7 comes into contact with the outer circumferential surface, thereby reducing the vibration of the conveyor belt 7.

[0047] Furthermore, for example, the vibration isolation device 60 may include at least one rod-shaped or at least one plate-shaped member that extends in the direction of movement of the conveyor belt 7 and is provided to contact the conveyor belt 7 from the thickness direction of the conveyor belt 7. Furthermore, if multiple rod-shaped members are provided, it is preferable that each of the rod-shaped members be spaced apart in the width direction (Drw). Similarly, if multiple plate-like members are provided, it is preferable that each of the plate-like members be spaced apart in the width direction Drw.

[0048] This disclosure is not limited to the embodiments described above, but also includes modified forms of the embodiments described above, as well as forms that combine these forms as appropriate.

[0049] The contents described in each of the above embodiments can be understood, for example, as follows: (1) A conveyor device (belt conveyor 5) for Frieza 1 according to at least one embodiment of the present disclosure comprises an endless mesh belt (conveyor belt 7), a pair of direction changing shafts 11 provided at different heights and spaced apart in the direction of movement for changing the direction of movement of the mesh belt (conveyor belt 7), and a vibration damping member 61 provided between the pair of direction changing shafts 11 so as to contact the mesh belt (conveyor belt 7) from the thickness direction of the mesh belt (conveyor belt 7).

[0050] According to the configuration described in (1) above, unwanted vibrations caused by the stopping and starting of movement of the mesh belt (conveyor belt 7) can be reduced.

[0051] (2) In some embodiments, the configuration of (1) above may include a shaft body 63 that extends in the width direction Drw of the mesh belt (conveyor belt 7). The vibration-damping member 61 may include a plurality of cylindrical members 65 that are arranged in line in the width direction Drw, have through holes 61h into which the shaft body 63 is loosely fitted, and are configured to contact the mesh belt (conveyor belt 7).

[0052] According to the configuration described in (2) above, multiple cylindrical members 65 can come into contact with the mesh belt (conveyor belt 7) over a relatively wide range in the width direction Drw, thereby effectively reducing vibrations in the mesh belt (conveyor belt 7).

[0053] (3) In some embodiments, in the configuration of (2) above, the plurality of cylindrical members 65 may be provided so as to be rotatable independently of each other.

[0054] According to the configuration of (3) above, since the multiple cylindrical members 65 can rotate independently of each other, even if there is variation in the speed at which the mesh belt (conveyor belt 7) moves in the direction of movement due to the position of the mesh belt (conveyor belt 7) in the width direction Drw, and a difference in the rotational speed of the cylindrical members 65 positioned at different positions in the width direction Drw occurs, the difference in rotational speed makes it difficult for rotational driving force to be transmitted between the cylindrical members 65. Therefore, according to the configuration in (3) above, the possibility of inducing problems such as meandering or slanting of the mesh belt (conveyor belt 7) can be reduced.

[0055] (4) In some embodiments, in the configuration of (2) or (3) above, the shaft body 63 may be positioned so as not to rotate.

[0056] According to the configuration described in (4) above, since the shaft body 63 is immobile, even if there is a difference in the rotational speed between cylindrical members 65 positioned at different locations in the width direction Drw, the transmission of rotational driving force between the cylindrical members 65 via the shaft body 63 will not occur. Therefore, according to the configuration in (4) above, the possibility of inducing malfunctions such as meandering or slanting of the mesh belt (conveyor belt 7) can be reduced.

[0057] (5) In some embodiments, the configuration of (2) to (4) above may include an adjustment unit 68 for adjusting the distance between the shaft body 63 and the mesh belt (conveyor belt 7).

[0058] According to the configuration described in (5) above, vibrations in the mesh belt (conveyor belt 7) can be effectively reduced.

[0059] (6) A Freeza 1 according to at least one embodiment of the present disclosure includes a conveyor device (belt conveyor 5) for Freeza 1 having any of the configurations (1) to (5) above.

[0060] According to the configuration described in (6) above, unwanted vibrations caused by the stopping and starting of the mesh belt (conveyor belt 7) can be reduced, and Frieza 1 can be operated stably. [Explanation of Symbols]

[0061] 1. Frieza 3 Housing 5 Belt conveyor 7 Conveyor belt 9 Drive shaft 11 Directional change axis 13 Driven axis 15 Idler axis 60 Vibration Isolator 61 Vibration Isolator 61h through hole 63 Axis body 63o outer surface 65 Cylindrical member 65i inner surface 65o outer surface 67 Support part 67a long hole 68 Adjustment section 69 Mounting bolts 90 Adjustment device

Claims

1. An endless mesh belt, A pair of direction changing axes, positioned at different heights from each other and spaced apart in the direction of movement, for changing the direction of movement of the mesh belt, A vibration-damping member is provided between the pair of direction-changing axes so as to contact the mesh belt from the thickness direction of the mesh belt, A conveyor system for Frieza equipped with the following features.

2. A shaft body extending in the width direction of the mesh belt, Equipped with, The vibration-damping member includes a plurality of cylindrical members arranged in the width direction, having through holes into which the shaft body is loosely fitted, and configured to contact the mesh belt. The conveyor device for Frieza according to claim 1.

3. The plurality of cylindrical members are provided to be rotatable independently of each other. The conveyor device for Frieza according to claim 2.

4. The shaft body is positioned so as not to rotate. The conveyor device for Frieza according to claim 2 or 3.

5. Adjustment part for adjusting the distance between the shaft body and the mesh belt Equipped with The conveyor device for Frieza according to claim 2 or 3.

6. A conveyor device for Frieza according to claim 1 or 2, Equipped with Frieza.

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