JP5917818B2 - Sorting device - Google Patents

Description

  The present invention relates to a sorting apparatus that pushes out and sorts a workpiece conveyed by a conveying unit by a sorting unit, and for safety, cleaning of movable parts such as a conveying unit of the conveying unit covered by a cover and a sorting gate driving unit of the sorting unit. Relates to a sorting device that is safe and easy.

  In a production line for food, etc., a workpiece is inspected by an inspection device. For example, a workpiece determined to be non-defective is transported to a subsequent device, and a workpiece determined to be defective is temporarily removed from the production line. . Conventionally, there are various sorting devices that sort workpieces into non-defective products and defective products. Among them, there is a push type sorting device that pushes and sorts a workpiece to be conveyed by a sorting gate.

  For example, in Patent Document 1 below, as shown in FIG. 6, the work W that is disposed on one side of the conveyor 110 that conveys the work W and is loaded onto the conveyor 110 is placed on the other side of the conveyor 110. The extrusion means 100 for extruding to the side is disclosed. The pushing means 100 includes an air cylinder 101 and a flat push plate 103 attached to the tip of the cylinder shaft 102 of the air cylinder 101. The pushing means 100 moves the push plate 103 from one side of the conveyor 110 to the other side of the conveyor 110 substantially horizontally so as to cross the conveyance path of the workpiece W, and is carried onto the conveyor 110 for conveyance. The workpiece W transported in the direction Y is extruded and discharged to another transport body 120 arranged in a direction different from the transport direction Y, here, a direction Y ′ substantially orthogonal to the transport direction Y.

JP-A-9-286517

  Incidentally, the pushing means 100 as shown in FIG. 6 has a portion for driving the push plate 103, that is, a movable portion such as the air cylinder 101 and the cylinder shaft 102. Further, the conveyor 110 has movable parts such as a belt and a roller that are driven to circulate. Since these movable parts are easily contaminated, there has been a demand for cleaning the movable parts on a small basis.

  However, since the movable part is also a dangerous part in which each part operates, careful attention must be paid to safety during cleaning. In general, as shown by a two-dot chain line in FIG. 6, for example, in the case of the extrusion means 100, the periphery of the movable part (air cylinder 101) is covered with the cover 104. There is a problem that it is difficult to perform cleaning, such as removing 104.

  Accordingly, the present invention has been made in view of such a situation, and provides a sorting device that improves both safety and ease of cleaning when cleaning each movable part of the transport means and the sorting means. It is an object.

Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments.
The sorting apparatus according to the first aspect of the present invention includes a transport unit 2, 32 that transports the workpiece W in a predetermined transport direction Y by the transport unit 4 that is circulated and driven.
A sorting apparatus including a driving unit 18 that drives a sorting gate 17 so as to push the workpiece conveyed to the conveying unit, and a sorting unit 10 that pushes and sorts the workpiece from the conveying unit by the sorting gate. In 1,
Wherein the movable portion 4,18,34 exposing the conveying means or said selection means and cover 8,19,33 is provided on the cover, the visible part 21 for viewing the movable portion of the interior The cleaning hose 27 is covered through a transparent cleaning window 23 , a cleaning hole 24 serving as a cleaning part 22 for cleaning the movable part, and a bellows part 25 provided at a peripheral part of the cleaning hole. And a short tubular hose attachment portion 26 communicating with the inside of the inside .

According to the sorting apparatus according to claim 1 of the present invention, the cleaning operator is provided with the visual recognition unit and the cleaning unit on the cover provided in the movable part in order to ensure safety. The movable part can be cleaned from the cleaning part while viewing the movable part inside the cover. Therefore, the cleaning operator can clean the movable part from the outside of the cover, and the part can be cleaned without bringing a hand or the like close to the movable part. Thereby, safety is improved. Moreover, since it is not necessary to perform complicated work such as removing the cover during cleaning, the ease of cleaning the movable part is improved. In addition, by adopting a transparent cleaning window in the visual recognition part, the inside and outside of the cover are reliably isolated, and there is no possibility of accidentally putting a hand or the like into the movable part, further improving safety. In addition, it has a hose attachment that allows the cleaning hose to communicate with the inside of the cover via the bellows provided at the periphery of the cleaning hole, so the direction of the cleaning water injected from the cleaning hose can be changed freely It becomes easier to clean.

It is a perspective view which shows the whole structure of embodiment (sorting apparatus) of this invention. (A) It is a side view which shows the visual recognition part and the washing | cleaning part which were provided in the conveying means in the embodiment. (B) It is the same front view. It is a top view which shows the visual recognition part and the washing | cleaning part which were provided in the selection means in the embodiment. (A), (b) It is explanatory drawing (front view) which shows the structure of the visual recognition part and washing | cleaning part in the same embodiment, and the operation | movement at the time of cleaning. It is a side view which shows the other example of the visual recognition part provided in the conveyance means in the same embodiment, and a washing | cleaning part. It is a top view which shows the extrusion means in the conventional sorting apparatus.

Embodiments of the present invention will be specifically described below with reference to the drawings.
As shown in FIG. 1, this embodiment (sorting device 1) is configured to sort a work W such as food, which is sent from a preceding conveyor and conveyed to a belt conveyor 2 as a conveying means, into a sorting gate of the sorting means 10. 17 is a device that pushes and moves in a sorting direction Y ′ (in this embodiment, a direction orthogonal to the transport direction Y) different from the transport direction Y, and pushes it out from the transport surface of the transport belt 4 serving as a transport unit for the workpiece W. It is.

  As shown in FIG. 1, the belt conveyor 2 as a conveying means includes a pair of rollers 3 and 3, and an endless conveying belt 4 wound around these rollers 3 and 3. One of the pair of rollers 3 and 3 (in the example shown in FIG. 1, a roller disposed on the downstream side in the transport direction Y) is a main driving roller connected to the drive motor 5, and the other is a driven roller. The belt conveyor 2 is mounted on a base 7 supported by leg portions 6.

  As shown in FIG. 2, the belt conveyor 2 is circulated and driven under the conveyor belt 4, which is in a free state. If exposed, it is a dangerous movable part that easily catches hands. Plate-like covers 8 and 8 are provided on the side of the cover so as to cover the lower side of the conveyor belt 4 and the roller 3. Therefore, the upper surface of the transport belt 4, that is, only the transport surface, is exposed to the outside, and a movable part that is dangerous when exposed is covered with a cover 8 so that a hand or the like cannot enter from the outside. Further, the cover 8 is provided with a cleaning work unit 20 described later.

  A sorting means 10 is disposed on one side of the belt conveyor 2. The sorting means 10 is attached on the base 12 supported by the legs 11. The sorting means 10 is a so-called pusher sorter, and moves the workpiece W on the transport surface of the transport belt 4 in the sorting direction Y ′ and pushes it out of the transport surface.

  As shown in FIGS. 1 and 3, a cylinder 13 is fixed on the base 12 in a direction orthogonal to the transport direction Y. The cylinder 13 includes a telescopic rod 14, and the tip of the rod 14 is positioned slightly outside the one side of the conveyor belt 4 at the standby position (retracted position). Such a cylinder 13 may be a hydraulic or pneumatic drive cylinder or an electrically operated solenoid. In short, the cylinder 14 is capable of freely reciprocating the rod 14 with a force necessary to push the workpiece W. If it is.

  On the upper surface of the base 12, there are two symmetrical positions around the cylinder 13 in plan view, and guide members 15 and 15 are fixed at positions near the conveying belt 4 of the cylinder 13, respectively. The guide member 15 guides the round bar-shaped guide member 16 so as to linearly reciprocate in the axial direction, and the guide direction is the same as the direction in which the rod 14 of the cylinder 13 reciprocates.

  The cylinder 13 moves the rod 14 linearly, and the guide member 15 guides the guide member 16 so that the guide member 16 moves linearly. These cylinder 13, rod 14, guide member 15, and guide member 16 constitute a sorting gate drive unit 18 that drives the sorting gate 17. If the rod 14 and the guide member 16 are exposed, a hand or the like is used. It becomes a dangerous movable part that is easily pinched. The sorting gate 17 is fixed to the tip of the rod 14 of the cylinder 13. The sorting date 17 is a substantially rectangular parallelepiped member that is long in the direction orthogonal to the axial direction of the cylinder 13 (conveying direction Y), and is connected to the rod 14 on the rear surface side of the central portion thereof. Further, the front surface of the sorting gate 17 is disposed at a position substantially coincident with one side edge of the conveyor belt 4 at a standby position (retracted position). Then, after waiting for the workpiece W conveyed at this position, when the workpiece W is conveyed to the belt conveyor 2, it is moved onto the conveying surface of the conveying belt 4 by the cylinder 13 driven at a predetermined timing. The workpiece W is moved to the position of the other side (pushing position) and the work W is pushed out of the conveyor belt 4. At this time, excessive friction and interference with the transport belt 4 should be avoided between the lower end surface of the sorting gate 17 and the transport surface of the transport belt 4 to the extent that the work W or the fingers of the operator are not involved. A slight gap is provided so that After the pushing operation, the cylinder 13 moves in the reverse direction, and the sorting gate 17 returns to the original standby position.

  A substantially rectangular box-shaped cover 19 is attached to the upper surface of the base 12 so as to cover the movable part of the sorting gate driving unit 18. The cover 19 has an open front surface on which the sorting gate 17 is disposed and a lower surface disposed on the base 12. The front surface of the cover 19 is covered with the rear surface of the sorting gate 17, and the lower surface is covered with the upper surface of the base 12. Therefore, the movable part is covered with the cover 19 so as not to be visible from the outside. On both side surfaces and the rear surface of the cover 19, a cleaning operation unit 30 described later is provided.

From here, with reference to FIGS. 2-4, the structure and operation | movement of the cleaning operation | work part 20 (20a, 20b) provided in each cover 8 and 19 which are the summary of this invention are demonstrated.
As shown in FIG. 2, the cleaning unit 20 (20 a) described above is provided on the cover 8 of the belt conveyor 2 as a conveying unit. The cleaning operation unit 20a includes a visual recognition unit 21 (21a) that allows the cleaning operator to visually recognize a conveyance unit (conveyance belt 4 and roller 3) that is a movable part disposed inside the cover 8, and the cleaning operator conveys the cleaning unit 20a. A cleaning section 22 (22a) for cleaning the belt 4 is provided. The visual recognition part 21a includes a transparent rectangular cleaning window 23 (23a) made of acrylic or the like. The cleaning unit 22a is composed of two small-diameter cleaning holes 24 (24a) provided in the cleaning window 23a so as to be able to reach the conveying belt 4 and the roller 3 by injecting cleaning water.

  As shown in FIGS. 2 and 4, a small diameter cleaning hole 24 a serving as a cleaning portion 22 a provided in the cover 8 is provided with a bellows portion 25 at the peripheral portion of the hole 24 a. Further, the bellows portion 25 is provided with a short tubular hose attachment portion 26 that allows the cleaning hose 27 to communicate with the inside of the cover 8 via the bellows portion 25.

  As shown in FIG. 4, the cleaning hose 27 attached to the cleaning hole 24 a from the hose attachment portion 26 may be directed downward as shown in FIG. As shown in (3), it can be turned up and the angle can be changed freely.

  As shown in FIG. 3, the above-described cleaning operation portions 20 (20 b) are provided on both side surfaces and the rear surface of the cover 19 of the sorting unit 10. The cleaning operation unit 20b includes a visual recognition unit 21 (21b) for allowing the cleaning operator to visually recognize the selection gate driving unit 18 that is a movable part disposed inside the cover 19, and the cleaning operator to select the selection gate driving unit 18. And a cleaning unit 22 (22b) for cleaning. The visual recognition part 21b is composed of a transparent rectangular cleaning window 23 (23b) made of acrylic or the like. Further, the cleaning unit 22b has a small-diameter cleaning hole 24 (24b) provided at a position where the cleaning water can be reached by injecting the cleaning water into the rod 14 and the guide member 16 of the sorting gate driving unit 18 in the cleaning window 23b. ).

  As shown in FIGS. 3 and 4, a small diameter cleaning hole 24 b serving as a cleaning part 22 b provided in the cover 19 is provided with a bellows part 25 at the periphery of the hole 24 b. Further, the bellows portion 25 is provided with a short tubular hose attachment portion 26 that allows the cleaning hose 27 to communicate with the inside of the cover 19 via the bellows portion 25.

  As shown in FIG. 4, the cleaning hose 27 attached to the cleaning hole 24 b from the hose attachment portion 26 may be directed downward as shown in FIG. As shown in (3), it can be turned up and the angle can be changed freely. Thereby, the direction of the cleaning water injected from the cleaning hose 27 can be freely changed. As a result, the degree of freedom in cleaning is increased and the ease of cleaning is improved.

  According to the above-described embodiment, in order to ensure safety, the movable belt 4 and the roller 3 of the belt conveyor 2 and the rod 14 and the guide member 16 of the sorting gate driving unit 18 of the sorting means 10 are provided at movable parts. By providing the visible portions 21a and 21b and the cleaning portions 22a and 22b on the covers 8 and 19, the cleaning operator can move the movable portions 4 and 18 inside the covers 8 and 19 from the visible portions 21a and 21b. These movable parts 4 and 18 can be cleaned from the cleaning parts 22a and 22b while viewing the screen. Therefore, the cleaning operator can clean the movable parts 4 and 18 from the outside of the covers 8 and 19, and the parts 4 and 18 can be cleaned without bringing a hand or the like close to the movable parts 4 and 18. Is possible. Thereby, safety is improved. Moreover, since it is not necessary to perform a complicated operation such as removing the covers 8 and 19 during cleaning, the ease of cleaning the movable parts 4 and 19 is improved.

  Moreover, although it is a simple structure, the safety | security at the time of the cleaning in the conveyance belt 4 and the roller 3 of the belt conveyor 2, and the rod 14 and the guide member 16 of the selection gate drive part 18 of the selection means 10 at the time of cleaning are easy. Both improve. Further, the presence of the cleaning windows 23a and 23b ensures that the inside and outside of the covers 8 and 19 are securely separated, and the above-mentioned movable parts 4 and 18 are not accidentally put in hands, thereby further improving safety. To do.

  FIG. 5 shows another example of the above-described embodiment. In this example, a conveyor belt (so-called plastic belt) in which a belt piece made of a hard resin suitable for conveying the workpiece W is connected to the conveyor belt of the belt conveyor 32 so as to be bent by a coupling pin when the workpiece W is heavy. 34 is used. In FIG. 5, the same or equivalent portions as those in the above-described embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  As shown in FIG. 5, the cleaning unit 20 (20 c) is provided on the cover 33 of the belt conveyor 32. The cleaning operation unit 20 c includes a visual recognition unit 21 (21 c) for visually recognizing the plastic belt 34 and the roller 3 as a conveyance unit that is a movable part disposed inside the cover 33, and the cleaning operator performs the plastic belt 34. And a cleaning section 22 (22c) for cleaning the roller 3. In this example, since the plastic belt 34 circulates due to its characteristics, the slack is necessary, so that the visual recognition portion 21c and the cleaning portion 22c are functionally attached to the cover 33 by utilizing that the movable portion does not interfere with a wide range. A large-diameter cleaning hole 24 (24c), which is also used for the above, is provided at a position away from the movable part. As a result, as in the above-described embodiment, the cleaning operator can clean the movable part 34 from the cleaning hole 24c while looking at the movable part 34 inside the cover 33 from the cleaning hole 24c. As a result, both safety and ease of cleaning are improved with a simple structure.

DESCRIPTION OF SYMBOLS 1 ... Sorting device 2, 32 ... Belt conveyor as a transport means 4, 34 ... Conveying belt 8, 19, 33 ... Cover serving as a transport section 10 ... Sorting means 17 ... Sorting gate 18 ... Sorting gate drive section 21 (21a, 21b) , 21c) ... visual recognition part 22 (22a, 22b, 22c) ... cleaning part 23 (23a, 23b, 23c) ... cleaning window 24 (24a, 24b, 24c) ... cleaning hole 25 ... bellows part 26 ... hose attachment part 27 ... Hose for cleaning W ... Workpiece Y ... Transfer direction

Claims (1)

A transport means (2, 32) for transporting the workpiece (W) in a predetermined transport direction (Y) by the transport section (4) driven in circulation;
A selection means (10) having a drive unit (18) for driving a selection gate (17) so as to push the workpiece conveyed to the conveyance means, and for sorting the workpiece by pushing out the workpiece from the conveyance means by the selection gate. In a sorting device (1) comprising:
A cover (8, 19, 33) is provided on the movable part (4, 18, 34) exposed by the conveying means or the sorting means, and the movable part (4, 18, 33) is provided on the cover for visually recognizing the movable part inside the cover. A transparent cleaning window (23) that becomes a visual recognition part (21), a cleaning hole (24) that becomes a cleaning part (22) for cleaning the movable part, and a bellows provided at the peripheral part of the cleaning hole A sorting apparatus comprising: a short tubular hose attachment portion (26) for communicating a cleaning hose (27) with the inside of the cover via a portion (25).

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