JP2012046262A - Carrier member tilting type conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a carrier member tilting type conveyor which moves a carrier member from an article dropped on a transfer means by the minimum operation of the carrier member.SOLUTION: The carrier member tilting type conveyor 1 includes: a travelling chain 9 for traveling across the top side of a plurality of transfer means; a carrier member 13 for receiving an article 11 in a horizontal attitude; a holder 17 having a connecting pin 15 for supporting the carrier member 13 rotatably in the vertical direction; an engaged member 19 fixed to the carrier member 13; an engaging member 23 provided in the holder 17 for engaging with the engaged member 19 detachably; tilting means 25 and 27 for detaching the engaging member 23 from the engaged member 19; and a guide means 31 for guiding the carrier member 13 upward on the connecting pin 15.

Description

  The present invention relates to a receiving member tilting type conveyor that sorts and conveys articles based on standards such as the shape, weight, grade, or size of the articles.

  The following Patent Document 1 discloses a conveyor for sorting articles. FIG. 7 is a schematic view of the conventional receiving member tilting conveyors 101 and 103, a plurality of receiving members 105 arranged in the direction of arrow X, an article 107 received by the receiving member 105, and a lower part of the receiving member 105. The conveyor 109,111,113 which is a transfer means installed in is shown.

  As shown in FIG. 8, the receiving member tilting conveyor 101 has a holder 115 that holds the receiving member 105 attached to the traveling chain 117 and causes the traveling chain 117 to travel in the direction of arrow X according to the rotation of the sprocket 119. It is. The end surface of the guide rail 121 that supports the traveling chain 117 is shown in FIG. 8, and the sprocket 119 is hooked to the roller 123 of the traveling chain 117 at a position that does not contact the end surface of the guide rail 121. Reference numeral 125 indicates a housing that supports the sprocket 119, the guide rail 121, and the like.

  The receiving member 105 is rotatably connected to the holder 115 via a connecting pin 127, and receives the article in a horizontal posture represented by a solid line. An engaged member 129 such as a pin is fixed to the side surface of the receiving member 105, and an engaging member 133 having a hook 131 is rotatably connected to the holder 115 via a rotating pin 135. When the receiving member 105 takes a horizontal posture, the hook 131 of the engaging member 133 is engaged with the engaged member 129 of the receiving member 105.

  The receiving member 105 passes above the conveyors 109, 111, 113 as the traveling chain 117 travels. For example, in order to drop the article 107 onto the conveyor 109, before the receiving member 105 that has received the article 107 as the object reaches directly above the conveyor 109, the driving means not shown in the drawing causes the rotation pin 135 to be a fulcrum. Then, the engaging member 133 is rotated in the direction of the arrow α, and the hook 131 is detached from the engaged member 129. As a result, the receiving member 105 turns downward with the connecting pin 127 as a fulcrum and assumes a tilted posture represented by an imaginary line. Then, the article 107 falling from the receiving member 105 in the tilted posture is received by the belt 137 of the conveyor 109 and conveyed in the direction of the arrow Y in FIG. An arrow Y points in the horizontal direction orthogonal to the traveling direction of the traveling chain 117 and coincides with the longitudinal direction of the conveyors 109, 111, and 113.

  Some articles are dropped onto the conveyors 111 and 113 by the operation of the driving means. The receiving member tilting type conveyors 101 and 103 are similar to each other, and it is preferable to reduce a drop of the article 107 from each receiving member 105. For example, in order to prevent an article that is an agricultural product from being subjected to an impact that may cause damage (damage) by dropping, it is preferable to reduce the falling distance of the article as much as possible. When the receiving member 105 is arranged low, the tip 139 of the receiving member 105 taking the tilting posture is lowered below the upper surface of the article 107. Therefore, when the receiving member 105 taking an inclined posture after dropping the article 107 on the conveyor 109 further travels and crosses over the conveyors 111 and 113, the receiving member 105 is transferred to the article 107 conveyed by the conveyors 111 and 113. There is a risk that the front end 139 of the motor will collide. In order to avoid this, if the receiving member 105 is returned to the horizontal posture before the receiving member 105 crosses over the conveyors 111 and 113, the following problem occurs.

  That is, the engagement member 133 is assumed to be maintained in the posture shown in FIG. 9 by an elastic force such as a return spring. In order to engage the hook 131 of the engaging member 133 with the engaged member 129 when the receiving member 105 is returned to the horizontal posture, the hook 131 is moved to the arrow α by the engaged member 129 that rotates in the direction of the arrow β. It is necessary to push back in the direction. When the engaged member 129 that rotates in the direction of the arrow β reaches the engagement position indicated by reference numeral 129 ′, it is difficult to stop the receiving member 105 immediately. Immediately after the engagement position slightly exceeds the engagement position in the direction of arrow β, the receiving member 105 stops when it returns to the engagement position. Thus, the receiving member 105 rotates further upward than the horizontal posture by the amount of the engaged member 129 exceeding the engaging position, and comes into contact with an article received by another receiving member 105 adjacent to the receiving member 105. This will cause the article to fall unnecessarily.

JP 58-1335026

  SUMMARY OF THE INVENTION An object of the present invention is to provide a receiving member tilting type conveyor that can retract a receiving member from an article dropped on a transfer means by a minimum operation of the receiving member.

  The present invention includes a traveling chain that travels in a direction crossing over a plurality of transfer means for transporting an article, a receiving member that receives the article in a horizontal posture, and is attached to the traveling chain, and the receiving member is rotated in the vertical direction. A holder having a connecting pin to be freely supported, an engaged member fixed to the receiving member, and a position where the receiving member is engaged with the engaged member when the receiving member assumes a horizontal posture. And the engagement member is detached from the engaged member, and the receiving member is rotated downward with the connection pin as a fulcrum, whereby the articles received by the receiving member are Inclining means for dropping to one of the transfer means, and in a process in which the receiving member crosses over the transfer means as the travel chain travels, the engaged member is engaged by the engaging member To a position which does not reach a position, characterized in that it comprises a guide means for upwardly guiding the receiving member of the connection pin as a fulcrum.

  In the present invention, the receiving member has a tip that pivots in the vertical direction with the connecting pin as a fulcrum, the article is dropped in a tilted posture with the tip facing downward, and the guide means follows the traveling chain. It is a cam rail which makes sliding contact with the traveling receiving member and guides the front end of the receiving member above the article conveyed by the transfer means.

  Further, the present invention is characterized in that the guide means integrally includes a descending inclined portion that guides the tip of the receiving member downward and an upward inclined portion that guides the tip of the receiving member upward. .

  According to the receiving member tilting conveyor according to the present invention, in a process in which the receiving member taking an inclined posture crosses the upper part of the transfer unit according to the travel of the traveling chain, the receiving member does not collide with the article conveyed by the transfer unit. The guide means rotates the receiving member upward with the connecting pin as a fulcrum. As a result, the receiving member can be retracted above the transfer means, so that the receiving member can be arranged lower than the transfer means, and the drop of articles falling from the receiving member to the transfer means can be reduced.

  In addition, the limit for the guide means to rotate the engaged member together with the receiving member is a position where the engaged member does not reach the position where the engaged member is engaged by the engaging member. Will not rotate. For this reason, the receiving member that rotates upward by being guided by the guiding means as described above does not cause a problem such as hitting an article received by another receiving member adjacent to the receiving member. The member tilting type conveyor can stabilize and convey articles.

  Furthermore, according to the receiving member tilting type conveyor according to the present invention, the guide member that is a cam rail slides and contacts the receiving member that travels according to the traveling chain, so that the receiving member that assumes the tilting posture can be guided to rotate upward. . For this reason, it is advantageous to simplify the structure of the receiving member tilting type conveyor, and it is possible to easily change the rotating speed and angle of the receiving member simply by replacing the cam rail with a different one. it can.

  Further, according to the receiving member tilting type conveyor according to the present invention, since the descending inclined portion of the guiding means slides into contact with the receiving member to guide the tip of the receiving member downward, the tilting means engages the engaging member. Immediately after being detached from the combined member, the receiving member can be prevented from turning sharply by the load of the article. Further, when the rising inclined portion of the guide means slides into contact with the receiving member, the lower end of the receiving member is guided upward, and the engaged member that rotates together with the receiving member reaches a position where it is engaged by the engaging member. The receiving member can be turned upward with the connecting pin as a fulcrum to the position where it does not. The effect of this is as described above.

The front view which shows the outline of the receiving member inclination type conveyor which concerns on embodiment of this invention. 1. The sectional view on the AA line of FIG. 1 which shows the principal part of the receiving member inclination type conveyor which concerns on embodiment of this invention. The BB sectional drawing of FIG. 1 which shows the operation example of the principal part of the receiving member inclination type conveyor which concerns on embodiment of this invention. The front view of the principal part of the receiving member inclination type conveyor which concerns on embodiment of this invention. The front view which fractured | ruptured a part of principal part of the receiving member inclination type conveyor which concerns on embodiment of this invention. FIG. 2 is a cross-sectional view taken along line AA of FIG. 1 showing an example in which the return means is applied to the receiving member tilting conveyor according to the embodiment of the present invention. The top view which shows the outline of the receiving member inclination type conveyor of a prior art example. The CC cross section of the receiving member inclination type conveyor of a prior art example. Schematic explaining operation | movement of the principal part of the receiving member inclination type conveyor of a prior art example.

  In the following description, the same designations will be used for the above-described elements regardless of whether or not they are shown. The drawings refer to FIGS. 1 to 3 unless otherwise specified.

  The receiving member tilting type conveyor 1 includes a traveling chain 9 that horizontally traverses a plurality of transfer means 3, 5, 7, a receiving member 13 that receives an article 11, and attached to the traveling chain 9 to move the receiving member 13 in the vertical direction. A holder 17 that is rotatably supported via the connecting pin 15, an engaged member 19 that is fixed to the receiving member 13, and a hook 21 that is provided on the holder 17 and is detachably engaged with the engaged member 19. It includes an engaging member 23, a plurality of tilting means 25, 27, a guide means 31 mainly composed of a wavy cam rail fixed to a housing 29, and a return means described later.

  The transfer means 3, 5, and 7 are belt conveyors, but may be roller conveyors or chutes. When the receiving member tilting type conveyor 1 is shown in a plan view, the traveling direction of the traveling chain 9 and the longitudinal direction of the transfer means 3, 5, 7 are orthogonal to each other as in the conventional example. The traveling chain 9 is an endless chain wound around a sprocket. The traveling chain 9 travels in the direction of arrow X by traveling means that rotates the sprocket with the output of the rotating machine. The article 11 is illustrated as a spherical fruit and vegetable, but the shape, size, and material of the article 11 are not limited at all. The receiving member 13 is obtained by joining a valley member 37 to a base member 35 on which a sliding contact edge 33 is formed. The valley-shaped member 37 forms buffer fins 39 that are elastically deformed by the load of the article 11.

  The holder 17 is attached to a support shaft 41 extending from a pin of the traveling chain 9. A bracket 43 is provided on the upper surface of the holder 17, and the engaging member 23 is supported by the bracket 43 via a rotation pin 45. The engaging member 23 extends a flange 47 on the opposite side of the hook 21 with respect to the rotation pin 45. The connecting pin 15 passes through the base member 35 of the receiving member 13 and is held by the bracket 43. The engaged member 19 is an engaging pin protruding from the base member 35, and is fixed to the opposite side of the distal end 49 of the receiving member 13 with respect to the connecting pin 15.

  The “horizontal posture” described below means that the rotation of the receiving member 13 around the connecting pin 15 is restricted in a state where the hook 21 of the engaging member 23 is engaged with the engaged member 19. To do. When the receiving member 13 takes a horizontal posture, the article 11 received by the valley-shaped member 37 does not roll naturally. FIG. 4 shows a form in which the receiving member 13, the holder 17, the guide means 31, and the tilting means 25 are viewed from the front, and the traveling chain and the housing are omitted. FIG. 5 omits the structure in which the receiving member is supported by the holder 17 from FIG. 4, and a part of the tilting means 25 is broken.

  As shown in FIGS. 2 and 5, the tilting means 25 includes a driving means 53 for operating the push rod 51 by the magnetic force of the solenoid coil, a stay 55 for attaching the driving means 53 to the housing 29, and a bracket joined to the stay 55. 57, a base shaft 59 supported by the bracket 57, a return spring 61 attached to the base shaft 59, and a head 63 that is rotatably attached to the base shaft 59 and extends right above the flange portion 47 of the engaging member 23. The actuating lever 65 is provided. The tilting means 25 and 27 are the same as each other.

  The operating lever 65 is abutted against the push rod 51 of the driving means 53 by the elastic force of the return spring 61. When the drive means 53 advances the push rod 51 downward, as shown in FIG. 3, the flange portion 47 of the engaging member 23 is pushed down by the head 63 of the operating lever 65, and the engaging member 23 is in the direction of the arrow α. To turn. As a result, the hook 21 is detached from the engaged member 19, so that the receiving member 13 turns downward with the connecting pin 15 as a fulcrum and assumes a tilted posture with the tip 49 facing downward. Thereafter, when the drive means 53 retracts the push rod 51, the head 63 of the operating lever 65 rises, and the engaging member 23 returns to the posture shown in FIG.

  The guide means 31 includes descending inclined portions 67 and 69 that are inclined so as to descend toward the front where the traveling chain 9 travels, and ascending inclined portions 71 and 73 that are inclined so as to be elevated toward the front where the traveling chain 9 travels. 75 and horizontal portions 77 and 79 extending horizontally are integrally connected. 2 shows the cross section of the horizontal portion 77 and the lower surface of the descending inclined portion 67, and FIG. 3 shows the cross section of the horizontal portion 79 and the upper surface of the ascending inclined portion 73. The operation of the guide means 31 will be described in accordance with the operation of the receiving member tilting conveyor 1 described below.

  The article 11 received by the horizontal receiving member 13 is conveyed as the traveling chain 9 travels. The traveling chain 9 and the tilting means 25 and 27 are shown in FIG. 1 one by one. However, other traveling chains travel behind the traveling chain 9 in the drawing, and are received from receiving members provided on the other traveling chains. The point that the article falls is the same as the conventional example. In addition, each article 11 is dropped on any one of the transfer means selected from the transfer means 3, 5 and 7 based on the standard.

  For example, when the article 11 is dropped onto the transfer means 5, the receiving member 13 that has received the article 11 (hereinafter referred to as “object”) crosses the transfer means 3 in the direction of the arrow X. At the timing when the object passes the front of the tilting means 25, the hook 21 of the engaging member 23 is detached from the engaged member 19 of the receiving member 13 where the tilting means 25 has received the object, and the connecting pin 15 is supported as a fulcrum. The receiving member 13 is rotated downward. As a result, the receiving member 13 is tilted and the object falls from the receiving member 13. Further, the object that slides down along the chute 81 is received by the transfer means 5 and conveyed in the horizontal direction perpendicular to the traveling chain 9.

  When the receiving member 13 is rotated downward as described above, the descending inclined portion 67 of the guiding means 31 is in sliding contact with the sliding contact edge 33 of the receiving member 13. As a result, since the tip 49 of the receiving member 13 is gradually guided downward by the descending inclined portion 67, immediately after the tilting means 25 disengages the engaging member 23 from the engaged member 19, the receiving member 13 is moved to the article. It is possible to suppress sudden turning with a load of. Further, the receiving member 13 reaches the horizontal portion 79 as the traveling chain 9 travels. As shown in FIG. 3, the horizontal portion 79 defines a lower limit for the receiving member 13 to rotate downward, and prevents the tip 49 of the receiving member 13 from hitting the chute 81.

  FIG. 1 shows a state in which an article 11 dropped from a receiving member provided on the other traveling chain is received by transfer means 5 and 7. When the receiving member 13 taking the tilting posture crosses above the transfer means 5, the rising inclined portion 73 of the guide means 31 slides into contact with the sliding contact edge 33 of the receiving member 13, so that the receiving pin is used with the connecting pin 15 as a fulcrum. 13 is rotated upward, and the receiving member 13 is retracted above the transfer means 5. In this way, the receiving member tilting type conveyor 1 avoids the front end 49 of the receiving member 13 from colliding with the article 11 conveyed by the transfer means 5 by guiding the front end 49 of the receiving member 13 upward. Can do. Therefore, since the receiving member tilting type conveyor 1 can dispose the receiving member 13 lower than the transferring means 3, 5, and 7 by the amount that the receiving member 13 is retracted above the transferring means, the article 11 falling from the receiving member 13 The head can be further reduced.

  In addition, the upper limit of the ascending inclined portion 73 of the guiding means 31 to rotate the engaged member 19 together with the receiving member 13 is a position where the engaged member 19 does not reach the position where it is engaged by the engaging member 23. In other words, when the receiving member 13 is in a posture in which the tip 49 is slightly inclined forward, the horizontal portion 77 following the rising inclined portion 73 is in sliding contact with the receiving member 13, and the upward rotation of the receiving member 13 is stopped. Therefore, the receiving member 13 does not rotate further upward than the horizontal posture. For this reason, since the receiving member 13 that rotates upward by being guided by the rising inclined portion 73 does not come into contact with an article received by another receiving member 13 adjacent thereto, the receiving member does not occur. The tilting conveyor 1 can stably convey the article 11.

  Subsequently, the receiving member 13 taking the tilting posture passes through the front surface of the tilting means 27, and the descending inclined portion 69, the horizontal portion 79, and the rising inclined portion 75 sequentially come into sliding contact with the sliding contact edge 33 of the receiving member 13. As a result, the receiving member 13 first rotates downward, but when it crosses over the transfer means 7, it rotates upward, so that the tip 49 of the receiving member 13 collides with the article 11 conveyed by the transfer means 7. Can be avoided. The receiving member tilting conveyor 1 that achieves such an effect satisfies the following conditions.

  For example, when the transfer means 3, 5, 7 are belt conveyors, the distance (height) from the transfer surface where each belt receives the article 11 to the article placement surface where the receiving member 13 taking the horizontal posture receives the article 11 is The maximum height of the article assumed that the receiving member tilting conveyor 1 can convey and the length from the connecting pin 15 to the tip 49 of the receiving member 13 are shorter than the total length. The distance from the transfer surface to the article placement surface may be shorter than the sum of the maximum height of the article and the dimension in which the receiving member 13 is inclined downward so that the drop of the article 11 is further reduced. preferable. Here, the downwardly inclined dimension is a state in which the lower limit of the receiving member 13 turning downward is defined by the horizontal portion 79 of the guide means 31 as shown in FIG. Corresponds to the distance from the mounting surface.

  The traveling chain 9 changes its direction before traveling further and circulates to the right side of FIG. In this process, the receiving member 13 may be returned to the horizontal posture by the return means 83 shown in FIG. The return means 83 is a portion curved so that the guide means 31 protrudes higher than the position of the horizontal portion 77 upward. When the return means 83 comes into sliding contact with the sliding contact edge 33 of the receiving member 13, the receiving member 13 rotates upward, and the engaged member 19 that rotates together with the receiving member 13 is engaged by the engaging member 23. It is pushed up to the position.

  Further, when the object is dropped on the transfer means 3, the receiving member 13 takes an inclined posture before crossing over the transfer means 3. When the rising inclined portion 71 is brought into sliding contact with the sliding contact edge 33 of the receiving member 13, the receiving member 13 is rotated upward as described above, so that the leading end 49 of the receiving member 13 is conveyed by the transfer means 3. A collision with an article can be avoided.

  As described above, the application of the cam rail as the guide means 31 is advantageous for simplifying the structure of the receiving member tilting conveyor 1. The speed and angle of rotation of the receiving member 13 can be easily changed simply by replacing the cam rail as the guide means 31 with a different shape. Further, if the slopes of the descending slopes 67 and 69 and the ascending slopes 71, 73 and 75 of the guide means 31 are set large, the overall length of the guide means 31 can be shortened. In this case, since the pitch for arranging the transfer means 3, 5, and 7 can be shortened, the space for installing the receiving member tilting conveyor 1 can be saved.

  It should be noted that the present invention can be carried out in a mode in which various improvements, modifications, or variations are added based on the knowledge of those skilled in the art without departing from the spirit of the present invention. The number of each of the receiving member 13, the transfer means 3, 5, 7 and the tilting means 25, 27 can be arbitrarily increased or decreased. The same applies to the number of ascending slopes 71, 73, 75 formed in the guide means 31. The ascending slopes 71, 73, 75 need not be a series of cam rails, and the guide means 31 may be divided into a plurality of parts. Even if the descending inclined portions 67 and 69 and the horizontal portions 77 and 79 of the guide means 31 are omitted, the implementation of the present invention is not hindered. Further, the chute 81 may be omitted, and the transfer means 3, 5, 7 may receive the article 11 falling from the receiving member 13 directly.

  The present invention can be applied to the conveyance and sorting of all articles.

  DESCRIPTION OF SYMBOLS 1 ... Receiving member inclination type conveyor, 3, 5, 7 ... Transfer means, 9,117 ... Traveling chain, 11, 107 ... Article, 13, 105 ... Receiving member, 15, 127 ... Connecting pin, 17, 115 ... Holder, 19,129 ... Engagement member, 21, 131 ... Hook, 23, 133 ... Engagement member, 25, 27 ... Tilt Means 29, 125 ... casing, 31 ... guide means, 33 ... sliding contact edge, 35 ... base member, 37 ... valley member, 39 ... buffer fin, 41. .. Support shaft, 43, 57 ... Bracket, 45, 135 ... Rotating pin, 47 ... Butt, 49, 139 ... Tip, 51 ... Push rod, 53 ... Drive Means, 55 ... stay, 59 ... base shaft, 61 ... return spring, 63 ... head, 65 ... actuating lever, 67, 69 ... descending slope, 71, 73, 75 ... ascending slope, 77, 79 ... horizontal, 81 ... chute, 83 ... return Means 101, 103 ... Receiving member tilting conveyor, 109, 111, 113 ... conveyor, 119 ... sprocket, 121 ... guide rail, 123 ... roller, 137 ... belt.

Claims (3)

A travel chain that travels in a direction crossing over a plurality of transport means for transporting articles;
A receiving member for receiving the article in a horizontal position;
A holder attached to the travel chain and having a connecting pin that rotatably supports the receiving member in the vertical direction;
An engaged member fixed to the receiving member;
An engagement member provided in the holder at a position to engage with the engaged member when the receiving member takes a horizontal posture;
By disengaging the engaging member from the engaged member and rotating the receiving member downward with the connecting pin as a fulcrum, the article received by the receiving member is one of the plurality of transfer means. A tilting means for dropping into the transfer means;
In the process in which the receiving member crosses over the transfer means as the traveling chain travels, the receiving pin is used as a fulcrum until the engaged member does not reach the position where the engaged member is engaged by the engaging member. Guiding means for guiding the member upward;
A receiving member tilting type conveyor characterized by comprising: The receiving member has a tip that pivots in the vertical direction with the connecting pin as a fulcrum, and drops the article in a tilted posture with the tip facing downward;
The guide means is a cam rail that slides into contact with the receiving member that travels according to the traveling chain and guides the tip of the receiving member above an article conveyed by the transfer means. The receiving member tilting type conveyor described.   3. The guide unit according to claim 2, wherein the guide unit integrally includes a descending inclined portion that guides the tip of the receiving member downward and an upward inclined portion that guides the tip of the receiving member upward. Receiving member tilting conveyor.

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