JP2016222412A - Transport device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transport device by which a clearance between adjacent pans is constant and biting of a transport object can be reduced.SOLUTION: A transport device comprises: a pair of endless chains which are rotated along a specified travel direction; side plates which are respectively fixed on sides of the pair of endless chains opposite to each other; and a conveyor belt which is fixed to the side plates and comprises plural pans. The pan P has a first bent part bent inside with respect to a flat part as a conveyance surface at a front end in the travel direction, and a second bent part recessed inside with respect to the flat part at a rear end in the travel direction. The first bent part of a subsequent pan is engaged with the second bent part of a precedent pan in the travel direction, whereby plural pans are joined to one another thereby constituting a conveyor belt 133.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a conveying device such as a chip conveyor and a scrap conveyor for conveying chips and scrap generated in a process of processing metal, wood, plastic and the like.

  In the process of manufacturing a metal product, a plastic product, etc., unnecessary cutting pieces or cutting wastes are generated when processing these materials. These cutting pieces, cutting waste, and the like are conveyed to a processing device such as a compressor by a conveying device that is connected to a production line generated by the cutting pieces.

  In such a conveying apparatus, a hinge conveyor in which a plurality of plates (pans) constituting a conveying surface are hingedly connected by a shaft, an apron conveyor in which a plurality of pans are fixed to a bracket provided on a side plate, etc. There is. The apron conveyor has a side plate fixed to a pair of endless chains, a plurality of pans are fixed between the left and right side plates, and the pans are connected to each other to form a belt-like transport surface. In comparison, since it is easy to replace pans and there is no problem that the gap between the pans expands as the shaft wears, it has become mainstream in applications such as chip conveyors and scrap conveyors (for example, Patent Document 1) ).

  In the transport device having such a structure, a chip or the like to be transported does not enter between the connected pans, and the bread has a predetermined curvature locus at the folded portion of the chain at both ends of the transport device. It is required to be able to move along. In response to the above request, in Patent Document 2, as shown in FIG. 9, one end of the connecting direction of the pan 9 is made into an arc shape 91 and the other end is bent into a convex shape 92, and an arcuate portion 91 of an adjacent pan is formed. A chain conveyor having a structure in which pans are connected so that the convex portion 92 and the convex portion 92 engage with each other has been proposed. In this chain conveyor, when the pan is flat, the projecting portion 92 is engaged with the lower surface (back surface) of the arc-shaped portion 91, thereby preventing cutting waste from entering the inside of the pan from the arc-shaped portion. To do. Further, at the folded portion of the chain, the position of the convex portion facing the lower surface of the arc-shaped portion moves, so that the angle between the pan and the pan can be changed, and the chain can be bent smoothly.

JP 2005-154143 A JP 2014-5111 A

  In the chain conveyor described in Patent Document 2, the gap between the end surface of the arcuate portion 91 that is the tip in the transport direction and the transport surface is not constant when the chain conveyor is bent at the folded portion. There is a difficulty that it becomes easy to bite. Patent Document 2 proposes a pan shape in which the shape of the arc-shaped portion is not an arc shape but a “<” shape, and the above problem is the same in this case.

  On the other hand, metal chips and wood chips often contain liquids such as water added during processing. Such liquid is preferably removed as much as possible before being transported to a processing device such as a compressor. However, the shape of the pan described in Patent Document 2 is such that the main transport surface is convex at both ends in the transport direction. Since water is sandwiched between the portions (the convex portion 32 and the arc-shaped portion 92), water tends to accumulate between the breads, and there are many cases where water is taken out (it is taken out to the subsequent device without draining). is there.

  It is an object of the present invention to provide a transport device in which the gap between adjacent pans is constant and reduces the biting of a transported object, and to provide a transport device having a structure that allows water to easily escape during transport. .

  This invention solves the said subject by employ | adopting a bread | pan of a specific shape in the apron conveyor type conveying apparatus. That is, the conveying device of the present invention includes a pair of endless chains that rotate along a predetermined traveling direction, side plates that are fixed to opposite sides of the pair of endless chains, and the side plates. And a transport belt comprising a plurality of pans fixed to the pan, the pan having a first bent portion bent inward with respect to a flat portion serving as a transport surface at a front end in the travel direction, and the travel A second bent portion that is recessed inward with respect to the flat portion at the rear end in the direction, and the first bent portion of the pan that follows the second bent portion of the pan that precedes in the traveling direction is engaged By doing so, the plurality of breads are connected.

  In the transport device according to the aspect of the invention, for example, the bread may have an angle formed by the first bent portion and the flat portion exceeding 90 degrees, and the second bent portion may have an L-shaped cross section along the traveling direction. It is a square shape. Alternatively, an angle formed by the first bent portion and the flat portion exceeds 90 degrees, and the second bent portion has a circular arc cross section along the traveling direction.

  According to the present invention, the conveyance surface can be made substantially flat, and the gap between the breads in the bread connecting portion can be kept constant. Thereby, the problem of biting of the conveyed product can be solved. In addition, since the pan connecting portion is a concave portion with respect to the flat conveyance surface, water or the like contained in the conveyed product can be discharged from the connecting portion that is the concave portion without collecting in the flat portion, and the post-processing device. It is possible to reduce the carry-out of water to the water.

1 is an overall configuration diagram showing an embodiment of a transfer device of the present invention. It is a figure which shows the main mechanisms of the conveyance part of 1st embodiment, (a) is the figure which looked at the conveyance surface (part) from the top, (b) was the figure seen from the side of the chain, (c) was the side The figure which shows the connection of a plate and a pan, (d) is the figure which looked at the chain and the pan from the edge part of a running direction. It is a figure which shows the bread | pan which comprises the conveyance belt of 1st embodiment, (a) is a top view, (b) is sectional drawing. It is a figure which shows the connection of the bread | pan which comprises a conveyance belt, (a) is 1st embodiment, (b) shows the modification. (A), (b) is a figure explaining the geometry of bread, respectively. (A), (b) is a top view of the bread | pan which shows the example of arrangement | positioning of a block member (slip prevention means), respectively. (A)-(c) is a figure which shows the discharge part (rear part), tail part (front part), and inclination part of the conveyance belt of 1st embodiment. (A) is sectional drawing of the bread | pan which comprises the conveyance belt of 2nd embodiment, (b) is a figure which shows a part of conveyance belt. Sectional drawing of the bread | pan of the conventional conveyance belt, and the figure which shows a conveyance belt.

  Hereinafter, an embodiment in which a transfer device of the present invention is applied to a chip conveyor will be described with reference to the drawings.

<First embodiment>
As shown in FIG. 1, the chip conveyor 100 according to the present embodiment is installed in connection with the pretreatment device 200, and a hopper unit 11 for feeding a treatment product (conveyed material) discharged from the pretreatment device 200. , A transport unit 13 that transports the processed material to a post-processing apparatus (not shown), a support unit 17 that supports the transport unit 13, and a drive source that drives a chain belt included in the transport unit 13, such as a motor 19. Yes. Although not shown in the drawing, when a liquid (drainage) contained in the processed product is included, a collection tank for collecting the drainage is installed at the lower part of the transport unit 13.

  In the present embodiment, the pretreatment device is, for example, a crusher, and is provided with a discharge port for discharging the processed material after crushing on the lower side, and configured to input the processed material into the hopper unit 11. The crusher 200 is mounted on a support frame whose height can be adjusted, and the height of the discharge port can be adjusted to the hopper portion 11 of the transport device 100. Note that the pretreatment device is not limited to the crusher 200, and may be a device other than the crusher 200, such as a separation device that separates metal and other materials. Needless to say, a transported object such as a metal chip may be input to 11.

  The transport unit 13 stores a structure such as a chain belt and a pan, which will be described later, in a cylindrical case 130, and a tail unit (front unit) 13A provided with the hopper unit 11 and a discharge unit for discharging a transported product. The product (rear part) 13B and the intermediate inclined part 13C are connected to each other, and the processed product received by the tail part 13A located on the lower side is discharged to the post-processing apparatus connected to the upper discharge part 13B. It is configured as follows. By transporting the processed material from the bottom to the top in this way, liquid such as water contained in the processed material gathers in the tail portion 13A and can be collected by the tail portion 13A. The angle of the inclined portion 13C is not limited, but is generally in the range of 30 to 60 degrees with respect to the horizontal plane.

  An opening (not shown) is provided on the upper surface of the case 130 at the lower part of the transport section, and the hopper 11 is fixed to this opening. The hopper portion 11 may be fixed to the case 130 by screwing, welding, or the like, or may be removable. When a drainage recovery tank is provided, an opening for connecting the drainage recovery tank is also provided on the lower surface of the case 130 at the lower part of the transport unit.

  The support part 17 includes a plurality of support legs 171 provided at the lower part of the transport part. The height of the support leg 171 can be adjusted to adjust the vertical position of the transport unit 13, thereby fixing the transport device 13 between the floor and the pretreatment device 200 in a stable posture. it can. Further, the support leg 171 may be provided with a wheel at an end that moves the transport device 100 to an arbitrary place.

  Although not shown, the case 130 covering the main mechanism of the transport unit 13 is appropriately provided with openings and windows for checking the maintenance and transport state, a guide member for guiding the running of the chain, and the like. May be installed.

Next, the detail of the main mechanism part of the conveyance part 13 is demonstrated with reference to FIGS.
The main mechanism of the transport unit 13 is housed in the case 130 described above. As main elements, as shown in FIG. 2, an endless chain 131, a transport belt 133 made up of a plurality of pans P, and The side plate 135 that connects the chain 131 and the conveyor belt 133 is provided. 2A is a view of a part of the main mechanism portion as viewed from the upper surface side. Since both sides have the same structure across the center line along the traveling direction of the conveyor belt 133, one side is omitted. Show. (B) is a side view of (a), (c) is a side view showing the connected state of the side plate 135 and the conveyor belt 133, and (d) is a view of the chain and pan viewed from the end in the running direction. .

  As shown in FIG. 2 (d), a pair of chains 131 are provided on both sides of the conveyor belt 133, and a plurality of chains 131 are provided at both ends of the endless track, that is, the tail section 13A and the discharge section 13B of the conveyor section 13, respectively. Is supported by pulleys. A pair of pulleys 137 on both sides located in the discharge unit 13B is connected to a drive source (motor) 19 with a shaft passing through the pulleys 137. When the pulley 137 is rotated by the motor 19, the upper side of the chain 131 is moved from the left to the right in FIG. 1, and the conveyed product is moved from the tail portion 13A to the discharge portion 13B. The pulley to which the motor 19 is connected is not limited to the discharge part 13B, but may be the tail part 13A.

  The side plate 135 includes a plurality of plate members S connected at the same pitch as that of the chain 131, and has a step in the thickness direction at the center in the connecting direction, and one part from the step is a pair of shaft portions of the chain 131. The other portion is fixed to the other shaft portion of the chain 131 via an adjacent plate member. As a result, the side plate 135 has a uniform thickness as a whole in the connecting direction. In addition, a bracket B for connecting individual pans P constituting the conveyor belt 133 is formed perpendicular to the main plane of the plate member S at the central portion where the step of the plate member S is provided. The pan P is fixed to the brackets B on both sides by bolts 134 with both sides in the longitudinal direction being sandwiched between the side plates 135. That is, one pan P is fixed to a pair of plate members S located on both sides of the conveyance belt 133.

  As shown in FIG. 3 (a), the pan P has a rectangular shape when viewed from the top, and the end in the short direction is connected to an adjacent pan, and forms a conveyor belt 133 as shown in FIG. . As shown in FIG. 3B, the cross section of the pan P is formed with a first bent portion P1 bent at one bending point at the front end in the conveying direction with respect to the flat portion P0 serving as the conveying surface. A second bent part P2 (P3) bent at two bending points is formed at the end.

  The geometry of the flat part P0, the first bent part P1, and the second bent part P2 will be described with reference to FIGS. 5A and 5B showing the pan P in a diagram.

  The angle θ formed by the flat portion P0 and the first bent portion P1 and the angle φ formed by the flat portion P0 and the second bent portion P2 are not limited, but preferably exceed 90 degrees, for example, 120 ° It is about ± 15 °, preferably 120 ° ± 5 °. Within this range, θ and φ may be the same or different. A portion (tip portion) P3 from the second bending point to the end of the second bent portion P2 is preferably substantially parallel to the flat portion P0. Moreover, the length L3 of this front-end | tip part P3 is made shorter than the length L1 of the 1st bending part P1.

  The length L1 of the first bent portion P1 and the length L2 of the second bent portion P2 are such that the tip of the first bent portion P1 is adjacent when the adjacent pans are parallel as shown in FIG. It is preferable that the width is slightly in contact with the upper surface of the portion P3 of the second bent portion P2 of the bread. By adjusting the lengths L1 and L2 of the first bent portion P1 and the second bent portion P2, the gap between the adjacent pans can be adjusted. For example, only the liquid is discharged from the gap and cutting is performed. Pieces and chips can be stopped on the pan.

  In addition, by setting the angles and dimensions of the first bent portion P1 and the second bent portion P2 within the above-described ranges, the breads P can be arranged along an arc having a radius of curvature similar to the length L in the short direction of the pan P. It is possible to smoothly perform the operation of bending with the gap kept constant and folding back endlessly.

  The specific size of the bread P varies depending on the type and size of the conveyed product, but as an example, the thickness is 3.2 mm, the longitudinal width is 1500 mm, and the lateral width is 67.1 mm (of which flat The width of the portion P0 is 40.41 mm), the length L1 of the first bent portion is 10 mm, the length L2 of the second bent portion is 14 mm, and the length L3 of the tip portion P3 is 10 mm.

  The chain 131, the conveyor belt (pan) 133, and the side plate 135 described above are the main mechanisms of the conveyor unit 13, but the conveyor unit 13 further includes additional elements such as anti-slip prevention means for the conveyed product. Can do.

  For example, as shown in FIG. 4B, a block member 139 for preventing a conveyed product conveyed from the lower part to the upper part from sliding on the conveying surface is fixed to the upper surface of the flat part P1. Good. As a result, it is possible to prevent the conveyed product from slipping off particularly at the inclined portion 13C, thereby realizing smooth conveyance. The block member 139 can be composed of a plate material perpendicular to the conveyance surface, and does not have to be provided for all the pans P, but may be provided for each of a plurality of pans as shown in FIG. Further, it is not necessary to provide the entire length of the bread P in the longitudinal direction. For example, as shown in FIG. 6B, it may be provided partially, or a plurality of plate materials may be alternately arranged. Further, the block member may be formed in a net shape or a lattice shape so as not to prevent the discharge of water contained in the conveyed product.

  Further, as another means for preventing slipping, the surface of the flat portion P1 may be processed into an uneven surface by means such as embossing or etching, or a shallow groove or the like may be formed.

  Next, based on the above configuration, the operation of the conveyance device of the present embodiment, particularly the operation of the conveyance belt 133 will be further described with reference to FIG.

  First, the conveyed product T input from the hopper unit 11 to the conveying unit 13 (tail unit 13A) is placed on the conveying surface of the conveying belt 133 constituted by continuous pans, that is, on the flat surface P0 of the pan P. As shown in FIG. 7C, the sheet is conveyed from the lower part to the upper part of the conveying unit 13. When the continuous pans P are running in a parallel state, the bread connecting portion is a V-shaped groove that is determined by the angle between the second bent portion P2 of the preceding pan and the following first pan bent portion P1. The water contained in the conveyed product is discharged from the bread-to-bread connecting portion. When the conveyed product includes a fine powdery material, the powdery material also enters the connecting portion that is a V-shaped groove, but the tip of the first bent portion P1 of the pan P and the second bent portion P2 By making the gap with the tip P3 appropriate, only the liquid can be passed.

  Here, when the inclination angle of the inclined portion 13C of the conveying portion 13 is large, the conveyed product T easily slides down on the conveying surface, but a block member 139 as shown in FIGS. 5 and 6 is erected on the upper surface of the pan. By keeping it in place, the transported object T can be prevented from slipping down.

  The liquid that has passed through the gap between the pans passes through the lower surface of the case 131 and is collected in a recovery tank installed in the tail portion 13A.

  As shown in FIG. 7A, when the conveyor belt 133 moves to the position of the pulley 137 on the upper portion of the conveyor unit 13, the preceding pan moves along the pulley 137 on the conveyor belt 133 indicated by a thick arrow in the figure. Change the angle to the direction of travel. At this time, the angle between the second bent portion P2 of the preceding pan Pn and the first bent portion P1 of the following pan Pn + 1 changes (opens), but the tip of the second bent portion P2 of the pan Pn + 1 pan Pn. Is always kept in contact with the first bent portion P1 of the pan Pn, and the distance between the two is kept constant. Further, when the angle between the second bent portion P2 of the pan Pn and the first bent portion P1 of the pan Pn + 1 is opened, the conveyed product that has entered between them, particularly the fine conveyed product, is pushed out.

  When the pan further advances along the pulley 137 while changing the angle and becomes substantially perpendicular to the traveling direction indicated by the arrow, the flat portion P0 and the first bent portion P1 of the following pan are substantially parallel, In the process, the first bent portion P1 that follows is slightly slid along the preceding second bent portion P2 toward the flat portion P0, and the transported material that has entered the connecting portion is discharged. Even in this state, the gap between the first bent portion P1 and the second bent portion P2 is kept constant, and the tip of the first bent portion P1 slides in the direction of discharging the conveyed product. Don't bite. In this way, the conveyed product T is discharged out of the conveying device from the upper part (discharge unit 13B) of the conveying unit 13 shown in FIG.

  In the return path of the conveyor belt 133, the pans advance along the pulley 137 while changing the angle with each other, and then return to the tail portion 13A via the discharge portion 13B and the inclined portion 13C of the conveyor portion 13 in a parallel state. In the tail portion 13A, the conveyed product T is introduced through the opening, and a part thereof also enters the lower side of the case 131 as shown in FIG. 7B, but as described above, the pan is moved along the pulley. Even if the angle changes, the gap is kept constant so that the conveyed product is not bitten.

  As described above, according to the conveyance device of the present embodiment, the shape of the bread constituting the conveyance belt is set to a specific shape, so that the connecting portion between the bread and the bread is formed in a groove shape with respect to the flat conveyance surface. It can be set as the concave shape, and it can be set as the flat shape without a convex part as the whole belt. Thereby, there is no biting of a conveyed product and the conveyance obstruction accompanying it, and taking out of water can be suppressed as much as possible. In addition, the pan employed in the transport device of the present embodiment has a simple shape in which the end in the traveling direction is simply bent, and can be individually fixed to the side plate. Is easy.

  As mentioned above, although 1st embodiment of the conveying apparatus of this invention was described, this invention is not limited to the said embodiment. For example, in the first embodiment, the transport device in which the transport direction is from the bottom to the top has been described. However, when the tail portion and the discharge portion are at the same level, or the transport device in which the tail portion is at the top and the discharge portion is at the bottom. Can also be applied. In this case, it is preferable to appropriately change the angle of the tip of the second bent portion of the pan in order to improve water drainage at the connecting portion of the pan. The position of the liquid recovery tank can be changed as appropriate in consideration of the levels of the tail portion and the discharge portion.

<Second embodiment>
The conveyance device of the present embodiment is different from the conveyance device of the first embodiment in the shape of the bread. Since other configurations are the same as those of the first embodiment, description thereof will be omitted, and only different points will be described below.

  FIGS. 8A and 8B show the shape of the pan P employed in the transport device of the present embodiment and the transport belt 133 connecting the pans. As shown in the figure, the pan P has a flat portion P0, a first refracting portion P1 at the front in the traveling direction, and a second refracting portion P2 at the rear in the traveling direction. Similar to the first embodiment, the first refracting portion P1 is bent downward (inside the track of the conveyor belt) with respect to the flat portion P0, and the angle is more than 90 degrees and less than 180 degrees. The second bent portion P2 has an arc shape entirely or partially from the bending point to the tip with the flat portion P0. However, it is preferable that the depth D1 of the tip of the first refracting portion P1 with respect to the height of the flat portion P0 is substantially the same as the maximum depth D2 of the second bent portion P2. That is, by setting the depth D1 of the tip of the first refracting portion P1 to be approximately the same as the maximum depth D2 of the second bent portion P2, the liquid (water) that has come out of the conveyed product does not collect in the second bent portion P2, Drained outside the pan.

  Similarly to the first embodiment, the conveying device of the present embodiment has no convex object on the conveying surface of the conveying belt that changes the gap with the conveying surface. Smooth conveyance is possible without being bitten by the connecting portion. Further, since there is no structure for storing water, there is little take-out of water, and post-treatment efficiency can be improved.

  The present invention has been described with reference to the embodiments shown in the drawings. In these embodiments, elements that are not essential in the present invention may be omitted or such elements may be added to the present invention. Needless to say, it is included.

  According to the present invention, it is possible to provide a transport device that can be smoothly transported and has little water removal.

DESCRIPTION OF SYMBOLS 100 ... Chip conveyor (conveyance apparatus), 11 ... Hopper part, 13 ... Conveyance part, 15 ... Collection tank, 17 ... Support part, 19 ... Drive source (motor), 130 ... Case, 131 ... Chain, 133 ... Conveyor belt, 135 ... Side plate, 137 ... Pulley, 139 ... Block member, B ... Bracket, P ... Pan, P0: flat portion, P1: first bent portion, P2: second bent portion, P3: tip portion, S: plate member

Claims (7)

A pair of endless chains that rotate along a predetermined traveling direction, side plates fixed to opposite sides of the pair of endless chains, and a plurality of pans fixed to the side plates A conveyor belt,
The pan has a first bent portion bent inward with respect to a flat portion serving as a conveying surface at a front end in the traveling direction, and a second concave recessed inward with respect to the flat portion at a rear end in the traveling direction. The plurality of pans are connected by having the bent portion engage with the first bent portion of the pan following the second bent portion of the pan preceding in the traveling direction. Conveying device to do. It is a conveying apparatus of Claim 1, Comprising:
An angle formed by the first bent portion and the flat portion exceeds 90 degrees, and the second bent portion has a cross section along the traveling direction having an L shape or a dogleg shape. . It is a conveying apparatus of Claim 1, Comprising:
An angle formed by the first bent portion and the flat portion exceeds 90 degrees, and the second bent portion has a cross section along the traveling direction having an arc shape. It is a conveying apparatus as described in any one of Claim 1 thru | or 3, Comprising:
A transport apparatus comprising: a front portion into which a conveyed product is input and a rear portion from which a discharged product is discharged, wherein the height of the rear portion is higher than that of the front portion. It is a conveyance apparatus of Claim 4, Comprising:
Below the front part, there is provided a collection tank for collecting the liquid contained in the conveyed product. It is a conveying apparatus as described in any one of Claims 1 thru | or 5, Comprising:
At least one of the plurality of breads constituting the transport belt is provided with a slip prevention means for preventing a transported article from falling. It is a conveyance apparatus of Claim 6, Comprising:
The conveying device, wherein the anti-slip means is a block member standing on the conveying surface of the pan.

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