JP2013049516A - Transport conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simply detach a loading part of a transport conveyor, so that the washing of the conveyor and a peripheral area is facilitated, and to enable the washing without a blind spot.SOLUTION: There are included: a pair of right and left endless conveyor chains 4 individually built across sprockets 2 and 3; a loading part 5 which is driven by the conveyor chains to travel and surround an outward route and a homeward route; and a guide route supporting the right and left endless conveyor chains 4, the loading part 5 traveling while loading a transport object is constituted of an endless net 6 and a spindle 7 inserted into a mesh of the net, and the spindle 7 is detachably attached to a bearing 10 of an attachment 4b provided in a chain link 4a of the conveyor chain.

Description

  This invention is a conveyance conveyor suitable as a conveyance line when processing such as washing, sterilization, heating, and cooling of vegetables and meat is continuously performed in a flow operation, and more specifically, the members constituting the conveyance surface are simply The present invention relates to a conveyor that can be removed and can clean the entire area of the conveyor and the surrounding area without any trouble.

  For example, in the case of washing while conveying vegetables and the like, a conveyor such as a belt conveyor, a net conveyor, and an apron conveyor has been conventionally used as a conveyor.

  In Patent Document 1 below, a fixed shaft that also serves as a support shaft for a roller of a chain is spanned between a pair of left and right roller chains, and the fixed shaft is inserted into a net of the net that constitutes the conveying surface. There is disclosed a net conveyor that runs by driving with a roller chain.

  And about the net conveyor, what made the net receiving rail washable in a state without a blind spot is proposed (refer to the following patent documents 2).

JP 2002-51717 A JP 2004-115142 A

  Since it is necessary to always keep the conveyor used for transporting food clean, periodic cleaning including peripheral equipment is required. For example, in the case of a conveyor for a washing line for vegetables or the like installed inside the aquarium, the whole is taken out of the aquarium.

  The reason for adopting such a troublesome method is to reduce the number of blind spots for cleaning. If the conveyor is in the aquarium, there will be areas that cannot be cleaned or difficult to clean, and the entire area cannot be cleaned.In addition, the conveyor becomes an obstacle and the peripheral areas such as the bottom and inner side of the tank are cleaned. Therefore, the entire conveyor is taken out of the water tank in order to reduce the problem as much as possible.

  However, this method requires a large amount of work and requires equipment such as a crane for lifting the conveyor. In addition, since it is necessary to lift the entire conveyor, there is a problem in work safety.

  In addition, since the work becomes large, frequent cleaning is difficult. In addition, if the conveyor surface is a conveyor composed of a belt or a slat bar, it is difficult to clean the back side of the conveyor surface even if the conveyor surface is taken out of the water tank, and it is difficult to sufficiently clean the entire area.

  In addition, since the net conveyor of the said patent document 1 has integrated the net with the roller chain by the fixed axis | shaft, a net cannot be attached or detached.

  The net conveyor of the above-mentioned patent document 2 allows the net receiving rail to be detachably attached to the conveyor frame, and by removing it, the net receiving rail can be cleaned without blind spots and the peripheral equipment and the conveyor frame can be easily cleaned. ing.

  Thus, although it becomes easy to wash | clean by disassembling a part of conveyor, since an endless net is hard to remove, satisfactory washing | cleaning is hard to expect. In particular, as in Patent Document 1, a net that is driven by a roller chain to travel is extremely difficult to sufficiently clean the entire area because the net cannot be attached or detached.

  It is an object of the present invention to make a conveyor having a conveyor surface composed of a net or the like excellent in draining performance so that each part of the conveyor and the peripheral area can be easily cleaned without a blind spot.

In order to solve the above problems, in the present invention, the conveyor is configured as follows. That is, two sets of left and right drive sprockets and driven sprockets, two endless conveyor chains respectively extending in parallel between the left and right drive sprockets and driven sprockets, and the forward drive driven by the conveyor chains, A stacking section that travels around the return path is combined with a guide path that supports the conveyor chain at least in the forward path.
Further, attachment is provided on a chain link placed inside the conveyor path of the conveyor chain at an integer multiple of the chain pitch P, and the stacking unit that travels with the object to be conveyed travels the endless surface that constitutes the conveying surface. And the support shaft inserted through the mesh of the net, and the support shaft is detachably attached to a bearing portion formed on the attachment (first form).

  As another measure, attachments are provided at the same pitch as the chain pitch P on the chain link placed inside the conveyor chain conveying path, and a stacking unit for carrying the object to be transported is placed between the left and right conveyor chains. The support shaft is configured to be horizontally mounted, and the support shaft is detachably attached to a bearing portion formed on the attachment (second form).

  The attachment and detachment of the support shaft with respect to the bearing portion of the attachment can be performed with, for example, the following structures (1) and (2).

(1) The bearing portion is configured by a bearing groove in which the support shaft can be loosely fitted, an entrance is released to an upper edge of the attachment, and an entrance width is smaller than an outer diameter of the support shaft. A reduction portion that can pass through the inlet of the bearing groove is provided at both ends or near both ends, the reduction portion is moved in a direction perpendicular to the axis and inserted into the bearing groove, and further, the reduction portion of the support shaft And the non-reduced portion are held at the groove edge of the bearing groove so as to prevent the axial movement of the support shaft, thereby holding the support shaft in the bearing groove.
(2) The bearing portion is configured by a bearing groove in which the support shaft can be loosely fitted and an inlet is released to an upper edge of the attachment, and a groove width on a lower end side widens in a moving direction of the conveyor. The support shaft is inserted, and further, the support shaft is displaced rearward in the moving direction of the conveyor, and the support shaft is held in the bearing groove by restricting the axial movement of the support shaft by the chain link of the conveyor chain.

The reduced portion in the structure (1) can be formed by the following methods a) and b).
a) A groove having a two-sided parallel groove bottom surface is provided at a position rotated 180 ° on the outer periphery of the support shaft.
b) The end of the support shaft and the vicinity of the end are processed to have a small diameter.

  The support shaft in which the reduced portion is generated by the method a) is a step formed at the boundary between the reduced portion and the non-reduced portion only by rotating the shaft after an appropriate angle after inserting the reduced portion into the bearing groove. The surface can be locked to the groove edge of the bearing groove.

  In addition, the spindle in which the reduced portion is generated by the method b) is inserted into the bearing groove, and then the spindle is displaced rearward in the moving direction of the conveyor to reduce the reduced portion and the non-reduced portion. The step surface generated at the boundary of the part can be locked to the groove edge of the bearing groove.

  In the case of mounting and dismounting the support shaft with the structure of (2) above, the axial movement after insertion of the support shaft inserted into the bearing groove is restricted by the chain link, and the support shaft moves in the axial direction as much as possible within the allowable range. If it does not come off from the bearing groove when it is done, a straight support shaft without a reduced portion can be used.

  When it is allowed to form a bearing groove having a groove width larger than the support shaft diameter in the entire region with respect to the attachment, the structure of (2) can be used.

  In addition, in the case of the transport conveyor of the second form in which the net that is pulled by the support shaft is not provided, the force that presses the support shaft against the groove surface at the rear of the bearing groove in the conveyor traveling direction is difficult to work. For this reason, when the structure of (2) is adopted in the transport conveyor of the second embodiment, the entrance of the bearing groove is pushed by the support shaft inserted to be elastically deformed and the entrance of the support shaft is allowed to pass. It is preferable to provide a stopper that expands to a position where the shaft is inserted and is elastically restored at the position where the insertion of the support shaft is completed to narrow the inlet to a position where passage of the support shaft is prevented.

  The stopper can also be employed in the first form of the conveyor.

  According to a first aspect of the present invention, a conveyor conveys a support shaft between left and right conveyor chains, and the support shaft is inserted into a net of an endless net that constitutes a transfer surface. Constitutes the loading section.

  Moreover, the conveyance conveyor of the 2nd form has arrange | positioned the supporting shaft horizontally spanned between left and right conveyor chains at a narrow pitch, and comprises the said loading part only with the supporting shaft.

  The supporting shaft constituting the loading section is detachably inserted into the attachment formed on the chain link of the conveyor chain in both the first and second forms, and the conveyor of the first form is a net if the supporting shaft is removed. Also come off. As a result, in both the first and second forms, the left and right conveyor chains can be easily removed from the conveyor chain without disassembling, and the back side of the conveying surface, which has been difficult to clean, can be easily cleaned without any trouble. Is possible.

  In addition, when the loading section is removed, the surface of the peripheral area hidden under the conveyor or on the side appears on the front, so the peripheral area can be easily and reliably cleaned, facilitating cleaning and cleaning without blind spots. The objective is achieved.

  The first form requires a net, but the total number of support shafts can be reduced by making the installation pitch of the support shafts larger than the chain pitch, and the labor for attaching and detaching the loading portion is changed to the second form. There is an advantage to reduce compared to. In addition, there is an advantage that it is possible to cope with a small-sized transported object by reducing the mesh of the net.

The perspective view which shows the 1st form of the conveyance conveyor of this invention The perspective view which expands and shows a part of conveyance conveyor of FIG. FIG. 1 is an enlarged plan view showing a part of the conveyor of FIG. Sectional view along line IV-IV in FIG. The perspective view which shows a part of conveyor chain employ | adopted as the conveyance conveyor of FIG. The perspective view which shows the detail of the attachment of the conveyor chain of FIG. The perspective view which shows the other example of the reduced part of a spindle The perspective view which shows the further another example of the reduced part of a spindle. The perspective view which shows the 2nd form of the conveyance conveyor of this invention The perspective view which expands and shows a part of conveyance conveyor of FIG. Side view showing an example in which a stopper is provided at the entrance of the bearing groove of the attachment

  Hereinafter, an embodiment of a conveyor according to the present invention will be described with reference to FIGS. 1 to 6 is a first embodiment of the present invention, which is a drive sprocket 2, a driven sprocket 3, a conveyor chain 4 spanning between the drive sprocket 2 and the driven sprocket 3, and an endless metal And a guide path 8 (see FIGS. 2 to 6) for supporting the conveyor chain 4 and a rail 13 for preventing the support shaft 7 from coming off. .

  The drive sprocket 2 is rotationally driven by a drive source 9 (a motor or a motor with a reduction gear). Two sets of the drive sprocket 2 and the driven sprocket 3 are provided symmetrically (only one of them is disclosed in FIG. 1), and an endless conveyor chain 4 is placed in parallel between the drive sprocket 2 and the driven sprocket 3 of each set. Has been passed.

  As the conveyor chain 4, a roller chain in which a bearing portion 10 is provided on a chain link 4 a as shown in FIGS. 2 and 3 is used. As shown in detail in FIG. 5, the chain link 4 a placed inside the conveyance path is bent and raised upward from the lower edge of the link (the edge on the lower side in the forward path of the conveyor). Attachments 4b are provided at an integer multiple of the chain pitch P (2 · P in the drawing). The illustrated bearing portion 10 is constituted by a bearing groove 10a formed in the attachment 4b.

  In the stacking unit 5 shown in FIG. 1 to FIG. In the net 6, the mesh position is three-dimensionally displaced, the support shaft 7 is inserted into the mesh, and both ends of the support shaft are dropped into the bearing grooves 10a of the left and right conveyor chains so that the support shaft is It is held by the attachment 4b.

The guide path 8 is installed in the forward path and the return path of the conveyor to support the conveyor chain 4. The conveyor chain 4 supports the stacking unit 5, thereby enabling food and the like to be loaded and transported by the conveyor.

  The guide path 8 can be composed of an angle material or the like. In the forward path of the conveyor, since a conveyed product is placed on the conveyance surface of the stacking unit 5, the conveyor chain 4 is supported by the guide path 8, and the stacking unit 5 is received and supported via the conveyor chain 4.

  The guide path 8 on the return path of the conveyor is not essential, but the presence of the guide path 8 on the return path can eliminate the drooping of the conveyor chain 4 due to the load of the stacking unit 5.

  The bearing groove 10 a constituting the bearing portion 10 has a lower end that is large enough to allow the support shaft 7 to be loosely fitted, and the inlet width w shown in FIG. 6 is smaller than the outer diameter D of the support shaft 7. Near the both ends of the support shaft 7, there is provided a reduced portion 7a that can pass through the inlet of the bearing groove 10a. The support shaft 7 is placed at a position where the reduced portion 7a corresponds to the inlet of the bearing groove 10a. It is moved in the direction perpendicular to the axis and inserted into the bearing groove 10a.

  The illustrated reduced portion 7a is formed by forming a groove formed by a surface 7b having a two-sided width at two locations rotated 180 ° on the outer periphery of the shaft, The distance L between the width surfaces 7b is smaller than the inlet width w of the bearing groove 10a.

  As shown in FIG. 7, the reduced portion 7 a may be produced by making the end of the support shaft 7 small in diameter, or as shown in FIG. 8 by providing an annular groove in the vicinity of the end of the support shaft 7. May be.

  The reduced portion 7a is inserted into the bearing groove 10a. The reduced portion 7a in FIG. 6 can be inserted into the bearing groove 10a in a predetermined direction (a direction in which the two-sided surface 7b is parallel to the groove direction). The support shaft 7 is rotated by an appropriate angle (except 180 ° and 360 °) in the bearing groove 10a (after that, it can be further displaced rearward in the direction of travel of the conveyor). The stepped surface 7c generated on the outer periphery of the support shaft 7 by the operation is locked to the groove edge of the bearing groove 10a, whereby the axial displacement of the support shaft 7 is prevented and the support shaft 7 is held in the bearing groove 10a. The

  The support shaft 7 provided with the reduced portion 7a in FIGS. 7 and 8 is also inserted into the bearing groove 10a with the groove width on the lower end side of the bearing groove 10a widened (the dimension in the conveyor traveling direction is increased). By subsequently displacing several millimeters rearward in the direction of travel of the conveyor, the stepped surface 7c on the outer periphery can be locked to the groove edge of the bearing groove 10a to prevent axial movement of the support shaft after insertion.

  When the conveyor is driven, the support shaft 7 is displaced rearward in the moving direction of the conveyor from the conveyor chain 4 to a position where power is transmitted, and is pressed against the groove surface of the bearing groove 10a. As a result, the support of the support shaft 7 in the bearing groove 10a is stabilized, and the support shaft 7 is securely held in the bearing groove 10a even when the stacking portion 5 moves to the return path.

  In this way, if the support shaft 7 is displaced rearward in the moving direction of the conveyor at the groove widening portion of the bearing groove 10a and is locked to the groove edge, the support shaft without the reduced portion has an inlet width outside the support shaft. It can be inserted into a bearing groove larger than the diameter and connected to the conveyor chain. When adopting this structure, pay attention to the following.

  That is, since the support shaft having a constant outer diameter can be displaced in the axial direction within the bearing groove 10a, the chain link 4a acts as a stopper to restrict the amount of axial movement of the support shaft. The support shaft 7 is prevented from coming out of the bearing groove 10a even when the amount reaches the allowable upper limit.

  The above-described detachment prevention rails 13 are installed in the turn part of the conveyor, the turn part moving from the forward path to the return path, and the turn part returning from the return path to the forward path. The rail 13 is a rail formed of a resin having a small friction coefficient, and closes the opening of the bearing groove 10a provided in the attachment 4b of the conveyor chain 4 in the return path of the conveyor and the turn portions at both ends of the conveyor. Thereby, it is surely prevented from coming off from the attachment 4b even in the forward path where the support shaft 7 is easily detached.

  In the transport conveyor 1 according to the first embodiment, when the support shaft 7 is removed from the attachment 4b, the net 6 constituting the transport surface is also removed. As a result, it is possible to remove the stacking portion 5 while leaving the conveyor chain 4 and clean the back side of the transport surface without any trouble.

  Moreover, since the surface of the peripheral region hidden under the conveyor or on the side portion appears on the surface when the loading unit 5 is removed, the peripheral region can be easily and reliably cleaned.

  Next, the 2nd form of the conveyance conveyor of this invention is shown in FIG. 9, FIG. The transport conveyor 1 according to the second embodiment is different from the first embodiment in that the stacking unit 5 is configured only by the support shaft 7 without using the net provided in the first embodiment.

  The conveyor chain 4 is a roller chain provided with a bearing portion 10 on a chain link 4a, and the attachment 4b described above is provided on all the chain links 4a of the roller chain. The installation pitch of the attachment 4b is the same as the chain pitch P, and the bearing 4 formed by the bearing groove 10a is provided on the attachment 4b.

  The bearing groove 10a is a groove similar to that of the first embodiment. The support shaft 7 is the same as that employed in the first embodiment, and the support shaft 7 is inserted into the bearing groove 10a and held.

  In the second form, there is no net to be pulled by the support shaft 7. For this reason, the support shaft 7 is not subjected to a force for fixing the support shaft (force to press against the groove surface of the bearing groove). In this situation, the holding of the support shaft 7 becomes unstable, so it is preferable to provide a stopper 11 as shown in FIG. 11 at the entrance of the bearing groove 10a.

  The stopper 11 in FIG. 11 is formed of an elastic wire or strip and is attached to the attachment 4b. The stopper 11 is pushed and elastically deformed by the support shaft 7 when the support shaft 7 is inserted into the bearing groove 10a by applying a force larger than the insertion force due to the weight of the support shaft. The inlet is expanded to a position where passage of the support shaft 7 is allowed.

  Further, after the support shaft 7 has passed, it is elastically restored and the inlet is narrowed to a point where passage of the support shaft 7 is prevented. For this reason, the support shaft 7 is also a bearing when the loading section 5 moves to the return path of the conveyor. It is stably held in the groove 10a.

  In the second embodiment, the support shaft 7 constituting the stacking unit 5 can be removed and cleaned. Moreover, since the space between the left and right conveyor chains is completely released when the support shaft 7 is removed, the peripheral area of the conveyor can be cleaned without any trouble.

  Note that the stopper 11 as shown in the figure can also be employed in the first embodiment described above.

  The conveyor 1 of the present invention can be used for cleaning equipment, sterilization equipment, heating equipment, cooling equipment, and the like. In the cleaning facility, when the conveyor 1 is installed in a water tank (not shown), or a nozzle (also not shown) for injecting water or cleaning liquid to the transported object on the conveyor surface is installed in the middle of the forward path. Good.

  In the sterilization facility, the heating facility, and the cooling facility, the conveyance conveyor 1 may be passed through the sterilization zone, the heating zone, and the cooling zone.

  1-4 of FIG. 1-4, FIG. 9, FIG. 10 is a frame with a stand.

DESCRIPTION OF SYMBOLS 1 Conveyor 2 Drive sprocket 3 Driven sprocket 4 Conveyor chain 4a Chain link 4b Attachment 5 Loading part 6 Net 7 Spindle 7a Reduced part 7b Two side width surface 7c Step surface 8 Guide path 9 Drive source 10 Bearing part 10a Bearing groove 11 Stopper 12 Frame with stand 13 Rail for preventing the spindle from coming off

Claims (6)

Two sets of left and right drive sprockets (2) and driven sprockets (3) and two endless conveyor chains (each of which is individually and parallelly spanned between the left and right drive sprockets (2) and driven sprockets (3)) 4), a stacking portion (5) that is driven by the conveyor chain to travel around the forward path and the return path, and a guide path (8) that supports the conveyor chain at least in the forward path,
Attachments (4b) are provided on the chain links (4a) placed inside the conveyor path of the conveyor chain (4) at an integer multiple of the chain pitch P, and the stacking unit (5 ) Is composed of an endless net (6) constituting the conveying surface and a support shaft (7) inserted through the net of the net, and the support shaft is formed on the bearing portion (10) formed on the attachment (4b). (7) Conveyor with detachably attached. Two sets of left and right drive sprockets (2) and driven sprockets (3) and two endless conveyor chains (each of which is individually and parallelly spanned between the left and right drive sprockets (2) and driven sprockets (3)) 4), a stacking portion (5) that is driven by the conveyor chain to travel around the forward path and the return path, and a guide path (8) that supports the conveyor chain (4) at least in the forward path,
Attachments (4b) are provided at the same pitch as the chain pitch P on the chain link (4a) placed inside the conveying path of the conveyor chain (4), and the stacking part (5) for carrying the object to be transported is moved left and right. A loading portion that is configured by a support shaft (7) that is horizontally mounted between the conveyor chains and that carries a transported object with the support shaft (7) detachably attached to a bearing portion (10) formed on the attachment. (5) Conveying conveyor comprising the supporting shaft (7) horizontally mounted between the left and right conveyor chains, and removably attaching the supporting shaft (7) to the bearing portion (10) formed on the attachment.   The bearing (10) can be loosely fitted to the support shaft (7), the inlet is released to the upper edge of the attachment (4b), and the inlet width (w) is the outer diameter of the support shaft (7). The bearing groove (10a) is smaller than (D), and a reduced portion (7a) that can pass through the inlet of the bearing groove (10a) is provided at or near both ends of the support shaft (7). The dimension part (7a) is moved in a direction perpendicular to the axis and inserted into the bearing groove (10a), and further formed between the reduced part (7a) and the non-reduced part of the support shaft (7). The stepped surface (7c) is locked to the groove edge of the bearing groove (10a) so that the axial movement of the support shaft (7) is prevented, and the support shaft (7) is inserted into the bearing groove (10a). The conveyor according to claim 1 or 2, wherein the conveyor is held on the conveyor.   A groove having a parallel two-face width surface (7b) as a groove bottom is provided at a position where the reduced portion (7a) is rotated 180 ° on the outer periphery of the support shaft (7), or the support shaft (7 4) The conveyor according to claim 3, which is produced by processing a part of a small diameter.   The bearing portion (10) has a bearing groove (10a) in which the support shaft (7) can be loosely fitted and an inlet is opened to an upper edge of the attachment (4b), and a groove width on a lower end side is widened in a moving direction of the conveyor. ), The support shaft (7) is inserted into the bearing groove (10a), and the support shaft (7) is displaced rearward in the direction of travel of the conveyor to move the support shaft (7) in the axial direction. The conveyor according to claim 1 or 2, wherein the support shaft (7) is held in the bearing groove (10a) by being restricted by a chain link (4a) of the conveyor chain.   The bearing groove (10a) is elastically deformed by being pushed by the support shaft (7) inserted into the bearing groove (10a) to expand the entrance to a position where passage of the support shaft is allowed, and elastically restored after passing the support shaft (7). The conveyor according to any one of claims 1 to 5, further comprising a stopper (11) for narrowing the inlet to a position where passage of the support shaft (7) is prevented.

Images