JPS63235210A - Conveyor for fruits and the like - Google Patents

Abstract

PURPOSE:To convey fruits safely without any damage given by providing a fruit receiving pan for a chain at constant intervals so as to be capable of rotating and reversing, and providing thereby a supporting device for a receiving pan operation between the receiving pan and the chain. CONSTITUTION:A supporting device 4 has an engaging projection 24 engaged with the engaging pin 27 of an engaging clip 31 fixed to a stationary section 21, supports a guide section 25, supports the receiving stem 19 of the receiving pan 3 which is fitted in the slot 23 of the guide section 25, thereby maintaining the receiving pan 3 in a fruit receiving attitude. And when a striking arm 28 is pressed downward about a supporting shaft 26 with reversal fixtures operated such as a weighing device and the like which are not shown, the engaging pin 27 is disconnected from the engaging projection 24, thereby letting the front side of the guide section 25 rotate downward about the shaft 22. While the receiving stem 19 moves along a circular arc within the slot 23 as shown by the way from a position (c) to a position (d), thereby positioning the receiving pan 3 in reversal. This constitution can prevent fruits from being damaged.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a conveyor for fruits, etc., and can be used for sorting machines, processing machines, etc. for fruits, articles, etc.

Conventional technology and problems to be solved by the invention In a conventional fruit sorting conveyor, etc., a tray on which fruits are placed is maintained in a fruit-receiving posture by a tray that can be tipped over around a support shaft provided between a pair of left and right chains. To guide the fruit sorting conveyor, separate from the chain, a receiving pin provided on the tray is slid into contact with a guide rail provided along the entire length of the fruit sorting conveyor. After receiving the overturned or derailed receiving bin and guiding it to maintain the designated overturning position,
The guide rail was provided with another fall return rail for returning to the guide rail. In addition, a saucer support device that engages and supports the saucer without using this guide rail can be installed by tilting the saucer sideways.
Examples of cited examples such as Japanese Patent Publication No. 55-44013 and Japanese Unexamined Patent Application Publication No. 55-36020, which are provided so as to be supported by the support shafts or chains at the front and rear of the transfer direction, and which release the engagement of the support device with the tray and cause it to fall over. there were.

However, with the method of installing a guide rail in addition to a chain to maintain and guide the saucer in the fruit-receiving posture, the saucer vibrates due to sliding friction, which may cause weight measurement errors or breakage of the saucer. Even in the case of a support device that engages and supports this saucer on the side of the tray, if this engagement is released and the fruit is allowed to fall freely onto the spindle opening, the fruit will fall faster and cause damage to the fruit. If the tray is rotated from the position directly below the support shaft to the front side of the transfer, the tray may be damaged during the forward, backward, stroke, or rotating parts at the start and end of the transfer. It would be desirable to have the chain directly or indirectly support the saucer without providing a guide rail in addition to the chain, and to be able to guide and control the falling posture of the saucer.

Means for Solving the Problems This invention provides an endless chaino (1) and an endless chaino (1).
The fruit tray (3) is engaged with and supported in a fallable manner between the ends of a fruit tray (3) which can be rotated and tipped around each support shaft (2) provided at regular intervals along In addition to maintaining
The conveyor for fruits, etc. is provided with a tray support device (4) that guides the tray (3) from falling and regulates it to a predetermined falling posture.

Functions and Effects of the Invention When the fruit is placed on the fruit tray (3) and transferred, each tray arranged at a predetermined interval along the transfer direction of the endless chino (1) is connected to the support shaft (2) and the tray support. supported by the device (4);
Receive and transport fruit. When the transferred fruit is to be taken out from the saucer, the engaging portion of the saucer support device (4) that engages and supports the saucer (3) is released using a release device or the like.
The saucer (3) rotates around the support shaft (2), and the support device (4)
During the final part of the tumbling motion, the robot moves in a posture that restricts further rotation. During the falling movement of the saucer (3), the fruit falls from the saucer (3) and is taken out to the takeout section or the like.

Since the tray (3) is supported by a support device (4) supported by the spindle (2) or the chain (1), it is transferred quietly with less vibration. In addition, when the saucer falls over, it is guided by the support device (4) and the end point of the falling movement is regulated so that there is no sudden fall, unlike when the tray is allowed to fall freely, so there is no impact on the fruit. It is good because the drawbacks of the conventional method can be solved and the safe transfer and discharge of fruit can be continued without having to take a dangerous posture that may cause damage to the tray due to unnecessary large rotation.

Embodiment In the illustrated example, a conveyor for fruits, etc. carries long fruits and vegetables such as cucumbers and carrots between a pair of left and right chains (1) (1) in the direction of conveyance (A) of the chains (1) (1). A horizontally elongated tray (3) for loading in the left-right direction is integrally provided, forming a row of trays (3) along the transfer direction (A), and the negative side of this tray (3) and the chain (1) A conveyor having a tray support device (4) provided between the conveyor and the tray support device (4) will be described as an example.

The endless chain (1) is a roller chain, and is wound between a pair of left and right sprockets that are respectively installed on the transfer start end and end of the left and right pair of endless roller chains, and the upper forward stroke is in the transfer direction (A). The lower side is the anti-transfer direction (A).
This is the return trip to . Both the upper outward stroke and the lower backward stroke,
On the chain cradle (6), which protrudes inward from the left and right machine frames (5) and is provided over the entire length of the linear reciprocating stroke of the conveyor, a resin is placed to receive the lower side of the left and right chains (1) to be transferred. The chain (1) is guided by a rail (7) and a guide body (8) made of resin that receives the sides.

Link plate (9) of chain (1) on either left or right side
is provided with holes (10) into which the support shafts (2) are inserted and received at intervals of a plurality of pitches, and a receiving shaft (11) that receives the rear part of the support device (4) that supports the saucer (3).

The support shaft (2) is divided into right and left parts with a gap (b) near the front edge of the saucer (3), and the left and right parts are each made of a resin material.
) is fixedly configured by providing unevenness on the left and right vertical surfaces (12) with the interval (b) as the center.An expansion spring (13) is stretched between the left and right vertical surfaces (12), and the left and right support shafts (2 ) to the left and right chains (
1), the left and right ends of each support shaft (2) are provided with a small-diameter fitting part (14), and the hole (10) provided in the link plate (9) of the chain (1) is inserted into the hole (10). It is configured to be inserted and supported.

The attachment part of the receiver (3) to the support shaft (2) has the above-mentioned structure, and is formed into a horizontally elongated rectangle, with vertical parts (15) rising upward on the left and right edges. This elevation (15)
The fruit-receiving surface (1G), which is surrounded by and has inclined front and rear edges, is provided with strip-shaped grooves (17) on the entire surface along the transport direction (A), to prevent the cucumber warts from breaking. The upper edges of the vertical surfaces (15) on the left and right sides are provided with thin, soft folds (18) divided into several parts in the front-rear direction. Also, saucer (3)
A receiving rod (18) protrudes from the lower side of the side surface in contact with the support device (4) to be engaged with and supported by the support device (4), and to be guided and prevented from falling. It is set up.

The support device (4) is attached to the support shaft (2) on the front side in the transfer direction (a).
The rear side is fitted into and supported by an elongated hole (2
a fixed part (21) supported by fitting a bearing shaft (11) provided on the chain (1) into the fixed part (21);
1) It is rotatably connected by a shaft (22) provided at the rear end and protrudes forward, and has an elongated hole (23) into which the receiving rod (18) provided on the receiving tray (3) is inserted; A guide part (25) having an engaging protrusion (24) projecting upward in the center part in the length direction, and a supporting shaft (28) in the left and right direction that is fitted into the inside of the fixed part (21). It is rotatably supported, has an engaging pin (27) at the lower part that engages with the retaining protrusion (24), and projects only rearward and upwardly so that the engaging pin is brought into contact with the tipping tool (33). The contact arm (28) is disengaged from the contact arm (27), and the expansion spring (29) is stretched between the fixed part (21) and the back surface of the contact arm (28).
) and an engaging piece (31) having a stopper part (30) etc. for maintaining the engaged posture of the retaining pin (27), and three parts (21), (25) and (31). . (32) is a cushion that receives the receiving rod (19) of the receiving tray (3) at the end of the elongated hole (23).

The tipping tool (33) is a rotary lenoid (34) shaft (
35) A contact piece (3B) is provided at the end, and this rotary solenoid (30) is supported by the machine frame (5) on one side.This contact piece (36) is attached to the fruit size detection device. Due to the detection of the fruit of the relevant size, the rotary linenoid (34) of the extracting part from which the fruit of the relevant size is to be extracted is interlocked and excited, and the abutment piece (3B)
is brought into contact with the corresponding contact arm (28) momentarily from a non-contact position to a contact position, and the engagement protrusion (24) and the engagement pin (
27), the tray (3) is overturned, and the fruit is dropped and taken out. (37
) is a cover for the tipping tool (33).

The fruit conveyor may be provided symmetrically with respect to the machine frame (5) on the negative side.

The support device (4) supports the saucer (3) by its fixed part (
21) is supported on the support shaft (2) at the front end side, and the receiving shaft (11) is provided at the rear end on the link plate (9) of the chain (1).
) and is maintained in a fixed posture, and this fixed part (21) includes a support shaft (2B), an expansion spring (29),
Engagement piece part (31) fixed by stopper part (30)
A guide part (25) rotatable around the shaft (22) is supported by engaging the engaging protrusion (24) on the engaging pin (27), and the front side is supported by the supporting shaft (2). saucer supported by (3)
The receiving rod (18) is fitted and supported in the elongated hole (23) of the guide part (25) to maintain the fruit receiving posture, and the receiving tray (3) is also placed on the receiving tray (3) in a state of leaning one after another. After all, the fruit is also supported by Chien (1).

Guidance and regulation of falling of the tray (3) of the support device (4) are as follows:
Due to the detection of the measurement device 4 that detects weight, thickness, etc. for sorting fruits on the fruit conveyor by size, the tray (3) on which the measured fruit is placed, and this tray When the support device (4) of (3) is transferred to the outlet section,
When the rotary solenoid (34) of the tipping tool (33) is energized after the distance from the measuring device and the required time have elapsed, the tipping device (33) is in a horizontal position and does not come into contact with the corresponding contact arm (28). The abutment piece (3B) in the posture is shifted to the vertical abutment posture by the rotation of the shaft (35), and comes into contact with the moving abutment arm (28) of the support device (4). Contact arm (2
8), when the upper side falls backward about the support shaft (2B), the lower retaining pin (27) comes off from the engagement part of the engagement protrusion (24). At this time, as shown in FIG. 5, the guide part (25) of the support device (4) is forcefully rotated downward on the front side about the shaft (22).

On the other hand, the rod (13) in position (C) is attached to the support shaft (2).
The rotary arc movement of this path (d) is performed while being slid and guided in the elongated hole (23) of the guide part (25), and the end of the elongated hole (23) The cushion (32) contacts the cushion (32), and further falling motion is regulated and restrained at this position.

In this way, the saucer (3) changes its posture from the fruit receiving position (E) to the falling position (E), and during this process, the fruit slides on the receiving surface (16) and then falls away from the receiving surface (16). The corresponding contact piece (36) returns before the next tray (3) comes.

The elongated hole (23) of the guide part (25) is formed by bending in a dogleg shape in the middle, and the position of the circular motion path (d) of the rod (19) and the final posture of the guide part (25) is As can be seen from the comparison, the guide part (25) descends to the lowest position and then moves to the receiving rod (
18) is rising from the lowest position when it comes into contact with the cushion (32), and due to resistance such as friction between the rod holder (19) and the elongated hole (23), the falling speed is lower than when falling freely. The impact of fruit removal can be reduced by controlling the final falling posture.

In addition, the contact piece (3) provided on the rotary linenoid (34)
The direction in which the contact arm (28) is rotated to the contact position
), the contact piece (36
) is subjected to resistance by the abutment arm (28), it is mechanically locked, and the abutment arm (28) is reliably held down, eliminating the possibility of the saucer (3) falling over.

[BRIEF DESCRIPTION OF THE DRAWINGS] The drawings show an embodiment of the present invention, in which FIG. 1 is a plan view, FIG. 2 is a front sectional view of a portion thereof, and FIG. 3 is a sectional view of a portion thereof. 4 is a partial side view, FIG. 5 is a partial side view, FIG. 6 is a partial side view, and FIG. 7 is a front sectional view thereof. In the figure, reference numeral (1) indicates a chino, (2) a support shaft, (3) a saucer, and (4) a support device.

Claims (1)

[Claims] This saucer (3) is placed between the endless chain (1) and the end of the fruit saucer (3) which can rotate and fall around each support shaft (2) provided at regular intervals along the endless chain (1). A conveyor for fruits, etc., which is provided with a saucer support device (4) that engages and supports the fruit so that it can fall over, maintains the fruit in a receiving posture, and guides the tray (3) from falling so as to restrict it to a predetermined falling posture.