WO2018155779A1 - Buffer conveyor system for packaging gun nails - Google Patents

Abstract

The present invention relates to a buffer conveyor system for packaging gun nails, which automates packaging of gun nails by using a buffer conveyor so as to achieve significant improvement in the productivity and quality accompanied by the packaging. The system may comprise: gun nails transported by a conveyor; a gun nail introduction means for introducing the gun nails to a buffer conveyor; a bending inspection part, which is installed on the introduction means, for inspecting a bending state of the gun nails; a transport jig which is installed on the introduction means, and which introduces the gun nails, of which the bending state has been inspected, into a container and then returns; an electromagnet loader which sucks the gun nails in the container, introduces the gun nails into an empty container in an introduction position of the buffer conveyor, and then returns; and a packaging robot which sucks the gun nails in the container which has been moved to a discharge position of the buffer conveyor, moves the gun nails to a packaging box, and packages the gun nails. The buffer conveyor may comprise: the introduction position into which the gun nails are introduced; a stop position for stopping the container containing the gun nails when another container is positioned in a discharge standby position while the container containing the gun nails advances; the discharge standby position in which the container containing the gun nails stands by before moving to the discharge position; the discharge position in which the gun nails contained in the container are discharged for packaging; and an introduction standby position in which the container which has been empty after the gun nails are discharged stands by before moving to the introduction position after a return.

Description

Buffer Conveyor System

The present invention relates to a buffer conveyor system for hand-held packaging, and to adjust the movement (transport) time of the handrail (coil nail) using a buffer conveyor to prevent the packaging load.

In general, a nail manufactured by a nail maker is made of a nail by welding a wire to one side or both sides of the nail sequentially moving along the discharge chute.

The handrails welded with the wires are cut into a predetermined number of units, and then standardized, and then a package of handrails (coil nails) wound in the form of flat plates or coils is packed in an appropriate number of units in a packing box, or laminated and packed. Will be shipped and distributed.

Conventionally, when a handrail is transported along a conveyor, the worker hand-packs it in a packing box by hand, so the speed of the handrail is not uniform, and the handrail that is moved (transported) to the packing position according to the packing delay is As stagnation affected the previous processes such as nail manufacturing, wire welding and cutting, and transport, the overall productivity was lowered, and there were various problems such as causing musculoskeletal disorders to workers.

It is an object of the present invention to provide a buffer conveyor system for handrail packaging in which a packing load is prevented by adjusting a movement (transport) time of a handrail (coil nail) moving to a packaging position using a buffer conveyor.

The present invention is a buffer conveyor system for packaging packaging, the handrail conveyed to the conveyor, the handrail injecting means for injecting the handnail into the buffer conveyor, a bending inspection unit installed in the injecting means to check the bending state of the handrail, the input The transport jig installed in the means and inspected for bending is introduced into the bucket, and the transport jig is returned to the bucket. It may include a packing robot for absorbing the handrail in the container moved to the discharge position and then moved to the packaging box.

The buffer conveyor has an input position at which a handheld is fed, a stop position at which the container containing the handnail moves forward and stops when another container is located at a discharge standby position, before the container containing the handnail is moved to a discharge position. It may include a discharge standby position for waiting, a discharge position for discharging the handrails contained in the container, and an input standby position for waiting before moving to the input position after returning the empty container in which the handrails are discharged.

The buffer conveyor may include a forward conveyor for moving a container at an input position containing a handrail to a discharge standby position, a return conveyor for moving an empty container at a discharge position at which the handrail is discharged to an input standby position, and a container at the discharge standby position. It may include a discharge conveyor for guiding the discharge to the discharge position, an input conveyor for guiding the empty container of the input standby position to the input position, the container is mounted on the upper surface of the roller constituting the conveyor to move to each position.

The buffer conveyor includes a forward pusher for pushing the container at the feeding position to the forward conveyor, a stop pusher for stopping the container at the discharge standby position, a discharge pusher for pushing the container at the discharge standby position to the discharge position, and a bin at the discharge position. Return pusher to push the container to the return conveyor, Input pusher to push the container at the input standby position, Proximity sensor to detect the container at the input standby position, Proximity sensor to detect the container at the discharge standby position, The first optical switch for detecting the presence of a handrail, the second optical switch for detecting the presence of a handhold of the stop position container, the third optical switch for detecting the presence of a handhold of the discharge standby position container, It may include a fourth optical switch for sensing.

The first, second, third, and fourth optical switches may be a combination of a transmissive light switch, and may be an infrared optical switch in which the light projected from the transmissive switch is reflected on the handrail and then incident to the light receiving switch to sense the handrail.

Both sides of the forward conveyor 12 are axially installed on a pair of left and right support members 31 and 32 fixed to the bottom plate 10, and side plates 47 (top) of the support members 31 and 32. 49 is fixed, and the resin plates 48 and 50 are respectively fixed to the inner surfaces of the side plates 47 and 49 to prevent the container 30 from being moved away, and both sides of the return conveyor 14 are bottomed. It is axially mounted on a pair of left and right support members 33 and 34 fixed to the plate 10, and side plates 51 and 53 are fixed to the upper sides of the support members 33 and 34, and the side plates 51 are provided. Synthetic resin plates 52 and 54 are fixed to inner surfaces of the 53, respectively, so that separation of the container 30 in motion can be prevented.

The container 30 is formed in a cylindrical body 30a having an upward opening portion 30h formed thereon to hold a handnail, and formed in an upper portion of the body 30a, and directed upward so that the handnail 2 can be easily introduced therein. It may include an inclined portion (30d) that is gradually opened, a bottom plate (30e) configured on the inner bottom of the body (30a), a protruding frame (30b) protruding out of the lower portion of the body (30a).

The sensing height of the first, second, third, and fourth optical switches is higher than the height of the container 30 seated on the conveyor and lower than the upper height of the handrail 2 input to the container 30 to the container 30. It may be characterized in that it only detects the handed paper (2).

The forward conveyor 12 has a plurality of rollers interlocked in the same direction by the motor 41 and the power transmission means, the return conveyor 14 is rotated in the same direction by the motor 45 and the power transmission means. And, the input conveyor 11 and the discharge conveyor 13 may be characterized in that the driven rotation.

The handrail injecting means is a vertical plate (65) fixed to the upper end of the support (63), the fixing member 66, 67 fixed to both sides of the front surface of the vertical plate 65, the fixing member 66, 67 A plurality of blocks (73) (74) (75) (76) and blocks (73) that are slidably coupled to the left and right sides of the guide rods (68) and (69) and the guide rods (68) and (69) fixed in parallel in the upper and lower portions. (74) (75) (76) The movable plate 81 fixed to the front side, the bracket 72 fixed to one side of the movable plate 81, and the guide rod 68 and 69 fixed to the front side of the vertical plate 65 ) And parallel to the cylinder 70, the end of the cylinder rod 71 fixed to the bracket 72, the fixing member 66, 67, respectively, and protrudes so as to determine the left and right movement stroke of the moving plate 81 A stopper 78 having a degree of adjustment, a shock absorber 79 installed on each of the fixing members 66 and 67 and buffering the moving plate 81, a transport jig 80 installed at the front of the moving plate 81, and Electromagnet loader 140 may be included.

The present invention has the effect of preventing the packaging load because the moving time or the transfer speed of the coil-type gun nail (2) to be moved to the packaging position by the buffer conveyor (5) is properly adjusted.

According to the present invention, the bending failure state of the handrail 2 is checked by the failure detection unit, and then the bending failure handrail 2x is discharged (retired), and the bending normal handrail 2 is put into the buffer conveyor 5. There is an effect that the packaging poor packaging (2) is prevented.

In the present invention, the sensing height of the first, second, third, and fourth optical switches 20, 21, 22, and 24 is higher than the height of the container 30 seated on the conveyor while being supplied to the container 30 ( It is configured to be lower than the upper height of 2) to detect only the handrail 2 put into the container 30, there is an effect that the detection of the handrail 2 is prevented.

According to the present invention, the handrail 2 input to the buffer conveyor 5 is stagnated while being transported, stopped, returned, and waited by a plurality of conveyors, pushers, optical switches, and proximity sensors constituting the buffer conveyor 5. Since the phenomenon and the packing load are prevented, it is a very useful invention having the effect of smooth movement of the handrail 2 and packing.

1 is a plan view showing an example of the present invention.

2 is a plan view showing an operating state of an embodiment of the present invention.

3 is a side view showing an example of the present invention.

4 is a plan view of the buffer conveyor shown as an example of the present invention.

5 is a partial cross-sectional view of the buffer conveyor shown as an example of the present invention.

6 is a partial cross-sectional view of the buffer conveyor shown as an example of the present invention.

7 is a perspective view of a container for carrying a handheld illustrated as an example of the present invention.

8 is a front view of the fixed pusher shown as an example of the present invention.

9 is a plan view of the fixed pusher shown as an example of the present invention.

10 is a plan view of the operating state of the fixed pusher shown as an example of the present invention.

11 is a plan view of the discharge pusher shown as an example of the present invention.

12 is a plan view of the operation state of the discharge pusher shown as an example of the present invention.

13 is a side view of the discharge pusher shown as an example of the present invention.

14 is a plan view of the return pusher shown as an example of the present invention.

15 is a plan view of the input pusher shown as an example of the present invention.

16 is a side view of the input pusher shown as an example of the present invention.

17 is a plan view showing the input means as an example of the present invention.

18 is a front view of the input means shown as an example of the present invention.

19: Right side view of the input means shown as an example of the present invention.

20 is a left side view of the input means shown as an example of the present invention.

21 is a plan view showing a transport jig according to an embodiment of the present invention.

22 is a plan view of a state in which a transport jig illustrated as an example of the present invention picks up a handrail;

23 is a plan view of a defective processing unit shown as an example of the present invention.

24 is a perspective view of a bucket shown as an example of the present invention.

25 is a front configuration diagram of a defect inspection unit shown as an example of the present invention.

26 is a state diagram of a defect inspection unit shown as an example of the present invention.

27 is a flowchart illustrating an example of the present invention.

<Description of the code>

(1) (7)-Conveyor (2)-Handrail

(2a)-wire (3)-feeding means

(5)-buffer conveyor (6)-packaging robot

(8)-Packaging Box (10)-Plate

(11)-infeed conveyor (12)-forward conveyor

(13)-discharge conveyor (14)-return conveyor

(15)-Forward Pusher (16)-Stop Pusher

(17)-Exhaust Pusher (18)-Return Pusher

(19)-Input Pusher (20) (21) (22) (24)-First Optical Switch

(23) (25)-Proximity Sensor (30)-Container

(31) (32) (33) (34)-supporting members (35) (36) (37) (38) (40) (44)-chain gears

(39) (43) (55) (56) (57) (58) (131)-Chain (41) (45) (132)-Motor

(47) (49) (51) (53)-Side plate (48) (50) (52) (54)-Synthetic resin board

(63)-holding (65)-vertical

(66) (67)-Fixing member (68) (69)-Guide

(70) (84) (143) (162) (172) (182) (192)-cylinder

(71) (87) (95) (96) (146) (167) (177) (183) (197)-cylinder loader

(73) (74) (75) (76)-Block (80)-Transport Jig

(78)-stopper (79) (87)-buffer

(81)-Move Plate (88)-Lamp Plate

(94)-Bidirectional Cylinder (99) (100)-Tongs

(105) (106)-Pressing Unit (107) (108)-Heel Bar

(110) (111)-Proximity sensor (112) (113)-Sense to be detected

(140)-electromagnet loader (161) (171) (181) (191)-bracket

(163) (164) (173) (174) (193) (194)-Guide

(165) (166) (175) (176) (195) (196)-Guide

(168) (178) (184) (198)-Pusher (310)-Bucket

(B)-Rubber Band (P1)-Plug-in Position

(P2)-Stop position (P3)-Discharge standby position

(P4)-Discharge position (P5)-Position standby position

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the embodiments of the present invention, the same components are denoted by the same reference numerals as much as possible, and detailed descriptions of related well-known structures and functions will be omitted so as not to obscure the subject matter of the present invention. The matters expressed in the following may be different from the form actually embodied in the schematic diagram for easily explaining the embodiments of the present invention.

1 and 2 is a plan view of a buffer conveyor system for hand wrap packaging shown as an example of the present invention, the nails manufactured by the nail maker are aligned with the nails are welded with a wire (2a) and cut to a certain standard ( The gun nail is wound to a predetermined diameter by a winding means (not shown), and then the coiled gun nail 2 wrapped with a banding means, for example, a rubber band B, etc. to prevent loosening, so as to prevent loosening. Configured to do so.

The present invention is installed in the coil-type handnail (2) to be conveyed by the conveyor (1), the feeding means (3) for feeding the conveyed handnail (2) to the buffer conveyor (5), and the feeding means (3) And a banding inspection unit that checks whether or not the banding is bad (state) before the handing over the buffer 2 to the buffer conveyor 5, and the bucket 2 that is installed in the feeding means 93 and whose banding is checked for badness. The conveying jig 80 and the return jig 80 and the bucket nail 2 of the bucket 310 are attracted by electromagnetic force into the empty container 30 of the buffer conveyor 5 after being introduced into the 310. (After packing), the electromagnet loader 140 which returns and the handrail 2 in the container 30 moved to the discharge position P4 of the buffer conveyor 5 are attracted by electromagnetic force, and then the packing box on the conveyor 7 is carried out. And a packaging robot 6 for moving packaging to (8).

The packaging robot 6 may be an articulated robot.

In the present invention, the handrail 2 input to the buffer conveyor 5 is transported while being buffered by a plurality of conveyors constituting the buffer conveyor 5, a pusher, an optical switch, and a proximity sensor. As a result, stops, returns, and waits, congestion and packing loads are prevented in a section in which the handrail 2 moves for packaging, and thus smooth discharge and packing of the handrail 2 are achieved.

The buffer conveyor 5 is installed on the plate 10 having a predetermined height, and the input position P1 into which the handnail 2 is inserted and the container 30 containing the handnail 2 are advanced. When the other container 30 is located at the discharge standby position P3, the stop position P2 for stopping and the container 30 containing the handrail 2 are located at the discharge position P4. If the discharge stand-by position (P3) and the handrail (2) contained in the container 30 is moved to the packaging box 8 by the packaging robot 6 or discharge position (P4) discharged for packaging When the container 30 is located at the feeding position P1 before the empty container 30 from which the empty nail 2 has been discharged returns to the feeding position P1, the waiting position P5 for waiting is Is set.

The buffer conveyor 5 includes a forward conveyor 12 composed of a plurality of drive rollers so that the container 30 at the input position P1 into which the handrail 2 is inserted can move forward to the discharge standby position P3. And a return conveyor 14 composed of a plurality of drive rollers so that the empty container 30 at the discharge position P4 from which the handrail 2 is discharged can be returned to the input standby position P5, and the discharge standby position. The discharge conveyor 13 which consists of a plurality of driven rollers so that the container 30 of P3 can be moved to the discharge position P4, and the container 30 of the input standby position P5 are the injection position P1. It comprises an input conveyor 11 composed of a plurality of driven rollers to be moved to.

The forward conveyor 12 is a plurality of rollers in the same direction by the motor 41 and the power transmission means, for example, the chain 39 and the chain gear 35, 36, 40 as shown in Figs. 3, 6, the return conveyor 14 is interlocked in the same direction by the motor 45 and the power transmission means, for example, the chain 43 and the chain gears 37, 38, 44. Configured to rotate.

A pair of chain gears 35 and 36 are spaced apart from one side rod of the roller constituting the forward conveyor 12, and the inner chain gear 35 of the neighboring rollers is a chain (as shown in FIGS. 4 and 5). 55 is connected to the rotational force is transmitted, the outer chain gear 36 of the roller is connected to the other chain 56, the rotational force is transmitted, the outer chain gear 36 of the roller located at the edge of the motor 41 It is connected to the chain gear 40 and the chain 39, so that the container 30 mounted on the roller upper surface is moved to the discharge standby position (P3) as shown in Figure 2 by the counterclockwise rotation of the roller.

A pair of chain gears 37 and 38 are spaced apart from the other shaft of the roller constituting the return conveyor 14, and as shown in FIGS. 4 and 6, the inner chain gear 37 of the neighboring roller is a chain ( 57 is connected to the rotational force is transmitted, the outer chain gear 38 of the roller is connected to the other chain 58, the rotational force is transmitted, the outer chain gear 38 of the roller located at the edge of the motor 45 It is connected to the chain gear 44 and the chain 43, so that the container 30 mounted on the roller upper surface is moved to the input standby position (P5) as shown in Figure 2 by the clockwise rotation of the roller. Unexplained reference numerals 10a and 10b are through holes through which the chains 39 and 43 pass.

The buffer conveyor 5 includes a forward conveyor 12 for moving the container 30 at the input position P1 containing the handrail 2 to the discharge stand-by position P3, and the handrail 2 is discharged. Return conveyor 14 which moves the empty container 30 of the discharge position P4 to the input standby position P5, and the discharge conveyor which guides the container 30 of the discharge standby position P3 to the discharge position P4. And an input conveyor 11 for guiding the empty container 30 at the input standby position P5 to the input position P1, wherein the container 30 includes the conveyors 11, 12, 13 On the upper surface of the roller constituting the 14) is moved to each position.

The buffer conveyor 5 stops when the container 30 is waiting at the forward pusher 15 for pushing the container 30 at the feeding position P1 to the forward conveyor 12 and at the discharge standby position P3. The stop pusher 16 to be discharged, the discharge pusher 17 for pushing the container 30 at the discharge standby position P3 to the discharge position P4, and the empty container 30 at the discharge position P4 are returned to the return conveyor ( Return pusher 18 for pushing to 14), input pusher 19 for pushing the container 30 of the input standby position P5 to the input conveyor 11, and the input and discharge standby positions P3 and P5. Proximity sensors (23) and (25) for sensing the container 30 of each, the first optical switch (20) for detecting the presence or absence of the handrail (2) of the container 30 in the closing position (P1), and stop The second optical switch 21 for detecting the presence or absence of the handrail 2 of the container 30 at the position P2, and the presence or absence of the handrail 2 of the container 30 in the discharge standby position P3 The third optical switch 22 and the handrail 2 of the container 30 at the discharge position P4 It includes a fourth optical switch 24 for detecting the absence.

The light switches 20, 21, 22, and 24 are composed of a combination of a light transmitting switch, and the light projected from the light transmitting sensor is reflected on the handrail 2 and then incident to the light receiving sensor. Detects the handrail 2 and outputs a switching signal. The first to fourth optical switches 20, 21, 22 and 24 are preferably infrared light switches which are not affected by visible light, and instead of infrared light switches, sensor signals are directly transferred to the controller. Of course, it can be configured as an input infrared light sensor.

Both sides of the advancing conveyor 12 are axially installed on a pair of left and right support members 31 and 32 fixed to the bottom plate 10 as shown in FIG. 6, and on the upper side of the support members 31 and 32. (47) (49) is fixed, and the inner surface of the side plates (47, 49), respectively, the synthetic resin plate (48, 50) is fixed so that the sliding contact even if the moving container 30 in contact with the container (30) Abrasion or noise is prevented, the moving load of the container 30 is reduced and positional deviation is prevented.

Both sides of the return conveyor 14 are also axially installed on a pair of left and right support members 33 and 34 fixed to the bottom plate 10 as shown in FIG. 5, and on the upper side of the support members 33 and 34. (51) (53) is fixed, and the inner surface of the side plates (51) (53), the synthetic resin plate (52) (54), respectively, is fixed so that the sliding contact even if the moving container 30 in contact with the container (30) Abrasion or noise is prevented, the moving load of the container 30 is reduced and positional deviation is prevented.

In the case of the input conveyor 11 is driven between the supporting member (11a) (11b) is built up and driven, the guide member is installed in place of the side plate and the synthetic resin plate on the upper side of the other support member to prevent the separation of the container 30, the driven The side plate and the synthetic resin sheet are also omitted in the upper portion of the one side support member on which the roller is axially installed so that the container 30 can move to the forward conveyor 12, and the stopper 11S is installed at the end of the input conveyor 11. The container 30 transferred to the input conveyor 11 is stopped.

In the case of the discharge conveyor 11, a guide member is installed on the other side of the support member on which the driven roller is axially installed instead of the side plate and the synthetic resin plate, thereby preventing the detachment of the container. And the synthetic resin plate is omitted so that the container 30 can be moved to the return conveyor 14, the end of the discharge conveyor 13 is provided with a stopper (13S) and the container 30 is transferred to the discharge conveyor (13) Is stopped.

The input conveyor 11 and the discharge conveyor 13 is composed of a plurality of driven rollers having a predetermined interval, the empty container 30 of the input standby position (P5) is the input conveyor 11 by the input pusher 19. ) And then the stopper 11S stops at the input position P1, and the container 30 at the discharge standby position P3 is moved over the discharge conveyor 13 by the discharge pusher 17 and then stopper (11). 13S) is stopped at the discharge position P4.

In addition, the container 30 at the feeding position P1 is stopped on the feeding conveyor 11, and when the handrail 2 is input, the first optical switch 20 senses the input of the handrail 2 to the controller. When the detection signal is input, the forward pusher 15 operates to move the container 30 containing the handrail 2 over the forward conveyor 12 to move forward to the discharge standby position P3, and the discharge position P4. Container 30 is stopped on the discharge conveyor 13, when the handrail 2 is discharged, the fourth optical switch 24 detects the discharge of the handrail 2 and inputs it to the controller. ) Moves the empty container 30 over the return conveyor 14 while the handrail 2 on the return conveyor 14 is moved to the feed-in standby position P5 by driving the return conveyor 14. After stopping, the proximity sensor 25 detects the container 30 arriving at the input standby position P5 and inputs it to the controller. Container 30 it is possible to determine the presence or absence.

On the other hand, when it is detected by the proximity sensor 23 that the container 30 in the discharge standby position (P3), the stop pusher 16 is moved forward to push the container 30 that was moved along the advance conveyor 12, the synthetic resin The outer circumferential edge of the container 30 is caught by the recessed groove of the stop pusher 16 by stopping the contact with the plate 50, and the container 30 at the stop position P2 is stopped by the stop pusher 16. When the container 30 on the forward conveyor 12 that has moved along the back is also stopped, packaging congestion is prevented, and the rollers of the forward conveyor 12 that the bottom surface of the container 30 is in contact with each other continue to rotate. .

In addition, when the container 30 of the discharge standby position (P3) is moved to the discharge position (P4) and it is determined that there is no container 30 by the proximity sensor 23, the stop pusher 16 is moved backward and the stop state is Since it is released, the container 30 on the forward conveyor 12 moves to the discharge standby position P3 and then stops by the stopper 12S, and the proximity sensor 23 moves to the discharge standby position P3 ( 30 is detected and the signal is input to the controller, the empty container 30 of the discharge standby position (P3) waits until the container 30 of the discharge position (P3) moves to the return conveyor (14).

In addition, when the container 30 at the discharge position P4 is stopped on the discharge conveyor 13 and the handrail 2 is discharged by the packaging robot 6, the fourth optical switch 24 passes the handrail 2. ), The discharge is input to the controller and the empty pusher 30 is moved over the return conveyor 14 while the return pusher 18 is operated, and the handrail 2 on the return conveyor 14 returns to the return conveyor 14. Stop by the stopper 14S which has moved to the input standby position P5 by the driving of the stopper, and the fourth optical switch 24 detects the discharge of the handrail 2, inputs it to the controller, and returns the pusher ( 18 operates to move the empty container 30 over the return conveyor 14 and at the same time the discharge pusher 17 operates to move the container 30 at the discharge standby position P3 over the discharge conveyor 13 The next packaging is made by the packaging robot 6 while stopping at the discharge position P4 by the stopper 13S.

The container 30 returned along the return conveyor 14 is stopped by the container 30 located at the feeding standby position P5 as shown in Figs. 1 and 2, and then is held by the feeding pusher 19. When the container 30 at the position P5 is moved to the feeding position P1, the subsequent container 30 is moved to the feeding standby position P5 and then stopped by the stopper 14S, and the proximity sensor 25 is fed. The vessel 30 that has moved to the standby position P5 is sensed and input to the controller, and the empty vessel 30 of the input standby position P5 waits until the vessel 30 of the input position P1 moves. Done.

In the present invention, the vessels 30 positioned on the forward conveyor 12 and the return conveyor 14, although the movement of the lower rollers are suppressed and stopped, are rollers of the lower roller, and the rollers of the rollers moving at a low speed and in a stopped or unfrozen state. Even if the bottom surface of the container 30 contacts, there is little wear or noise.

FIG. 7 is a perspective view illustrating a container 30 for moving the supplied handnail 2 to the discharge position P4 while being mounted on the conveyors 11, 12, 13 and 14, and having a handrail 2 Cylindrical body 30a having an upward opening portion 30h formed therein to accommodate the inclination portion 30d which is formed on the upper portion of the body 30a and gradually opens toward the upper portion so that the handrail 2 can be easily introduced. And a bottom plate 30e configured at the bottom of the body 30a, a protrusion frame 30b protruding outward from the bottom of the body 30a, and an upper surface 30c formed at the upper portion of the body 30a. .

A through hole 30f is formed at the center of the bottom plate 30e, and a plurality of through holes are formed at predetermined intervals around the through hole 30f to reduce the contact area with the conveyor roller contacting the bottom surface, thereby minimizing frictional resistance. It is desirable to.

The overall height of the container 30 is configured to be lower than the height of the handrail 2 so that the handrail (injected into the container 30 using the first to fourth optical switches 20, 21, 22, and 24) 2) can be detected.

The sensing height of the optical switches 20, 21, 22, and 24 is higher than the height of the container 30 placed on the conveyor and higher than the upper height of the handrail 2 that is put into the container 30. By configuring low, only the handrail 2 put into the container 30 is detected and input to the controller.

8 to 10 show the stop pusher 16, the bracket 161 is fixed to the upper surface of the plate 10, the cylinder 162 is installed horizontally on the bracket 161, the bracket 161 Bearings or guide tubes 163 and 164 installed horizontally on both sides, guide rods 165 and 166 slidingly coupled to guide tubes 163 and 164, guide rods 165 and 164, respectively; A pusher 168 fixed to the end of the cylinder loader 167, and a concave groove 169 formed in the center of the tip of the pusher 168, one container 30 in the discharge standby position (P3) as shown in FIG. It is preferred that the space be placed thereafter to stop the subsequent advancing vessel 30 on the advance conveyor 12.

FIG. 9 is a plan view before the stop pusher 16 operates, and FIG. 10 is a plan view with the stop pusher 16 operating, and when the container 30 is located at the discharge standby position P3, In the plan view of the state in which the container 30 is stopped from moving to the discharge standby position P3, the stop pusher 16 when the vessel 30 is detected by the proximity sensor 23 in the discharge standby position P3. Is moved forward by the cylinder 162 to push the container 30 moving along the advance conveyor 12 so as to contact the synthetic resin sheet 50 so that the outer periphery of the container 30 is recessed in the recessed pusher 16. It stops at (169).

On the other hand, when the container 30 of the discharge standby position (P3) is moved to the discharge position (P4) by the discharge pusher 17, the proximity sensor 23 detects that there is no container 30 in the discharge standby position (P3). The cylinder 162 is operated as shown in FIG. 9 by the control of the controller, and the stop pusher 16 moves backward to stop the release state. Thus, the container 30 in the stop position P2 moves to the discharge standby position P3. Is stopped.

11 to 13 illustrate the discharge pusher 17, a bracket 171 fixed to the upper surface of the plate 10, a cylinder 172 horizontally installed on the bracket 171, and a bracket 171. Guide rods 173 and 174 installed horizontally on both sides, guide rods 175 and 176 slidingly coupled to the guide tubes 173 and 174, and ends of the guide rods 175 and 176, respectively. And a pusher 178 fixed to the end of the cylinder loader 177 and a concave groove 179 formed at the center of the tip of the pusher 178, which is installed at one side of the discharge conveyor 13 as shown in FIG. It is configured to be able to move the container 30 in the position (P3) to the discharge position (P4).

FIG. 11 is a plan view before the discharge pusher 17 operates, and FIG. 12 shows that the handrail 2 moved to the discharge position P4 is moved and wrapped by the packaging robot 6 and is returned by the return pusher 18. When the empty container 30 at the discharge position P4 is returned to the return conveyor 14, the pusher 17 moves forward by the cylinder 172 and stops at the discharge standby position P3 along the advance conveyor 12. When the container 30 is moved to the discharge position P4 and the container 30 is completely moved to the discharge position P4 and then stopped by the stopper 13S, the pusher 17 moves backward and returns. When the proximity sensor 23 detects that the container 30 is not present at the discharge standby position P3, the cylinder 172 operates as shown in FIG. 9 by the control of the controller and the stop pusher 16 moves backward. Since is released, the container 30 of the stop position P2 moves to the discharge standby position P3 and is stopped. 13 is a side view of the state in which the pusher 17 is returned.

FIG. 14 shows the return pusher 18, which includes a bracket 181 fixed to the upper surface of the plate 10, a cylinder 182 horizontally installed on the bracket 181, and an end portion of the cylinder loader 183. FIG. It comprises a pusher 184 is fixed, and a recess 185 formed in the center of the pusher 184, and is installed on one side of the discharge conveyor 13 as shown in Figure 4 empty container 30 of the discharge position (P4) ) Is configured to move to the return conveyor 14, when the packing robot 6 to move the suction nail 2, the pusher 184 is operated to move the container 30 to the return conveyor 14 It will return and then return.

The return pusher 18 is installed such that the guide tube horizontally on the bracket 181 like the discharge pusher 17 so as to slide the guide rod in the guide tube, and the end of the guide rod is the pusher 184. It is desirable to achieve a more stable operation by configuring the guide to be fixed to.

15 and 16 illustrate the input pusher 19, the bracket 191 fixed to the upper surface of the plate 10, the cylinder 192 horizontally installed on the bracket 191, and the bracket 191. Guide rods 193 and 194 installed horizontally on both sides, guide rods 195 and 196 slidingly coupled to the guide tubes 193 and 194, and ends of the guide rods 195 and 196, respectively. And a pusher 198 fixed to an end of the cylinder loader 197 and a concave groove 199 formed at the center of the tip of the pusher 198. The pusher 198 is installed at one end of the return conveyor 14 as shown in FIG. It is configured to move the container 30 in the standby position P5 to the feeding position P1.

Fig. 15 is a plan view, and Fig. 16 is a side view thereof, wherein the container 30 at the feeding position P1 is stopped while the empty container 30 is moved to the feeding standby position P5 by the return conveyor 14 and stopped. The cylinder 192 is operated by the control of the controller when the proximity sensor 23 detects the absence of the container 30 at the closing position P1 by moving forward to the forward conveyor 12 by the forward pusher 15. While the pusher 198 moves forward, the empty container 30 at the input standby position P5 is moved to the input position P1, and then returned backward. The empty container is closed by the proximity sensor 25 at the input position P1. 30 is sensed and the handrail 2 is inputted, and the empty container 30 waits while the empty container 30 arrives at the input standby position P5 by the return conveyor 14.

The heights of the stoppers 11S, 12S, 13S, 14S are driven rollers of the conveyors 11, 12, 13 and 14 so that the container 30 to be moved (transported) can be stopped without leaving. It is constructed slightly higher than the height of the upper surface of the driven roller.

17-26 shows an example of the handrail injecting means 3 which injects the handrail 2 into the buffer conveyor 5. As shown in FIG.

The handrail inserting means 3 includes a vertical plate 65 fixed to an upper end of the support 63, fixing members 66 and 67 fixed to both front sides of the vertical plate 65, and a fixing member 66. Guide rods 68 and 69 fixed in parallel to the upper and lower portions of the 67 and a plurality of blocks 73, 74, 75 and 76 which are slidably coupled to the left and right sides of the guide rods 68 and 69, respectively. And a moving plate 81 fixed to the front of the blocks 73, 74, 75 and 76, a bracket 72 fixed to one side of the moving plate 81, and a front plate of the vertical plate 65. Cylinders 70 parallel to the guide rods 68 and 69, end portions of the cylinder rods 71 fixed to the brackets 72, and fixing members 66 and 67, respectively, A stopper 78 whose projection degree is adjusted so as to determine the left and right movement stroke of the 81, a shock absorber 79 provided on each of the fixing members 66 and 67, and buffering the moving plate 81, and a moving plate ( 81 includes a carrying jig 80 and an electromagnet loader 140 installed on the front surface.

The vertical plate 65 is reinforced and fixed to the support 63 by the reinforcing member 64.

The carrying jig 80 is fixed plate 85 fixed to the front of the moving plate 81, the bracket 83 is installed horizontally on the front of the fixing plate 85, and is installed perpendicular to the upper surface of the bracket (83) Cylinder 84, guide rods 85 and 86 installed vertically on both sides of the bracket 83, and ends and guide rods 85 and 86 of the cylinder rod 87 protruding below the bracket 83; Lifting plate 88 is fixed to the end of the), vertical rods (89) (90), and the lower end of the vertical rods (89) (90) are installed so as to move up and down on both sides of the bottom surface of the lifting plate (88) Bidirectionally fixed to the bottom surface of the horizontal plate 93 and the spring 90 for engaging the outer periphery of the vertical rods (89) and (90) and down holding the horizontal plate (93), respectively. Cylinder 94, cylinder rods 95 and 96, which are projected to both sides of the bidirectional cylinder 94, guide rods 95a and 96a for guiding the appearance of cylinder rods 95 and 96, Fixed to the ends of the cylinder rods 95 and 96 and guide rods 95a and 96a. Is fixed to the lower ends of the front and rear connecting members 94a and 94b, the lower members of the connecting members 94a and 94b, and the fixing members 97 and 98, respectively. It includes front and rear forceps 99 and 100 that pinch the nail head of the work 2.

The tongs 99 and 100 are opened by the bidirectional cylinder 94 as shown in FIG. 21, or are pinched as shown in FIGS. 18 and 22 to pick up the nail head of the handrail 2, and thus the tongs 99 The inner portion of the (100) is a semi-circular concave portion is formed to pick up the front and back of the round shape nail (2).

The tongs (99, 100) is configured to pick up the upper part of the nail (2) so that the nail head is caught, therefore, the strength to pick up and move the nail (2) is necessary, in the case of thickness (up and down height) The thicker it is to interfere with picking up the nail (2), 1 to 5 times the thickness of the nail hair 1 to 10, preferably 1 to 5 times.

The handrail (2) is caught by the nail head portion while the forceps (99, 100) is pinched by the immersion operation of the bidirectional cylinder 94, the forceps (99) by the protruding operation of the bidirectional cylinder (94) The picked up state is maintained until 100 is opened.

In FIG. 18, the connecting member installed at the upper end of the guide rods 85 and 86 is installed downward and cushioned when the lifting plate 88 descends while contacting the upper surface of the bracket 83.

The transport jig 80 is configured with a defect inspection unit for detecting a bending failure of the handrail 2, the lower portion of the transport jig 80 according to whether or not the defect of the handrail 2 inspected by the defect inspection unit or discharged or In order to transfer the buffer conveyor 5, the handrail 2 is provided with a bucket 310 that stays for a while.

The bucket 310 has a cylindrical body 311 having an upward opening 318 formed therein so as to accommodate the handrails 2 and 2x, and a body of the handrails 2 and 2x. The inclined portion 314 that gradually opens toward the top to be easily introduced, the bottom plate 315 configured on the bottom of the body 311, the protruding frame 312 protruding outward from the bottom of the body 311, and the bottom Protruding rod 317 is projected upward in the center of the plate 315 to guide the introduction of the handrail (2) (2x), the bottom plate 315 of the bucket 310 by using a fixing member or fastening member A plurality of fixing holes 316 are formed to be fixed to the upper surface of the fixing plate 125 of the defective processing unit, and an inclined surface is formed on the upper part of the protruding rod 317 so that the handrails 2 and 2x are easily introduced.

The defect inspection unit is fixed to the bidirectional cylinder 94, the fixing plate 101, 102 protruding to both sides of the bidirectional cylinder 94, and the bracket 108 (fixed to the upper surface of the fixing plate 101, 102) ( Slidingly coupled to the proximity sensor 110, 111 installed in the 109, the bearing or guide tube (112) 113 and the guide tube (112) 113 fixed perpendicular to the fixed plate (101) (102) It is coupled to the lifting bar 107, 108, and the upper end of the lifting bar 107, 108 to suppress the excessive falling of the lifting bar (107, 108) and ascend by the defective handrail (2x) proximity sensor Lifting bar 107 so as to be lifted by the pressing action of the detected parts 112 and 113 detected by the 110 and 111 and the nail 2c released due to the bending failure as shown in FIGS. 25 and 26. Pressing portion 105, 106 formed on the lower end of the 108 and the lifting rods 107, 108 includes a spring installed on the outer periphery of the lifting rods 107, 108 so as to be supported downward.

The pressing portion 105, 106 has a larger outer diameter than the elevating rods (107, 108), the inclined surface is formed at the bottom edge portion of the bad nail (2c) is easy to enter the loose nail 2c It is configured to be able to pressurize the lifting bar (107, 108).

The lifting rods 107 and 108 are located between the front and rear tongs 99 and 100 as shown in FIG. 21, and are positioned outside the outer diameter of the handrail 2 in the normal banding state, but have poor bending as shown in FIG. 25. The nail (2c) head portion of the nail (2) to be released by the lift bar 108 is the position to push up, the height of the pressing portion 105, 106 of the lifting rods (107) 108 is 25 It is configured to be positioned slightly lower than the nail head of the handrail 2 picked up by the tongs (99, 100) as shown.

Therefore, the conveyer 1 is conveyed to the carrying out position 1b of the carrying out part 1a, and conveys the stationary handrail 2 which is stopped, and checks whether it is defective. 1B of FIG. 18 is a stopper which acts so that the handrail 2 may stop at the carrying out part 1a.

When the bending state of the handrail 2 is this defect, a defect processing unit is configured to perform a defect processing such that the defective handrail 2x contained in the bucket 310 falls below the bucket 310 by rotating the bucket 310. do.

The defective processing unit, the horizontal member 120 is fixed to the lower portion of the front surface of the support 63 horizontally, vertical members 121, 122 are installed on both sides of the upper surface of the horizontal member 120, and the bucket 310 The bottom surface of the fixing plate 125 is fixed, the shaft members 123, 124 fixed by fastening members 126, 127 on both sides of the fixing plate 125, and the shaft in the vertical member 121, 122 The shaft rods 128 and 129 of the shaft members 123 and 124 to be installed, the motor 132 fixed to the upper surface of the horizontal member 120, and the one side shaft rods 129 of the container 210 are fixed. Excessive rotation of the chain gear 130, the chain gear 133 fixed to the rotating shaft of the motor 132, the chain 131 connecting the chain gear 130 and the chain gear 133, and the bucket 310 And a stopper 134 to prevent it.

The stopper 134 fixed to the upper surface of the horizontal member 120 has an insertion portion 135 having an outer diameter smaller than that of the stopper 134 on the stopper 134, and the insertion portion 135 at the rear of the fixing plate 125. ) Is inserted into the through hole 136 is formed, the bucket 310 is maintained in a horizontal state.

A discharge chute or a discharge box 137 having a storage chamber 138 is installed in the lower portion of the front surface of the container 130 to accommodate the defective handrail 2 discharged (ejected).

The electromagnet loader 140, the fixed plate 141 is fixed to the front of the moving plate 81, the bracket 142 is installed horizontally on the front of the fixed plate 141, and is installed perpendicular to the upper surface of the bracket 142 Cylinder 143, guide rods 144 and 145 installed vertically on both sides of the bracket 142, and ends and guide rods 144 and 145 protruding downward of the bracket 142. Lifting plate 147 fixed to the end of the), vertical rods 148, 149 which are installed to be able to lift and move on both sides of the bottom surface of the lifting plate 147, the lower end of the vertical rods 148, 149 An electromagnet 152 is fixed to the spring, and the spring 150 is coupled to the outer periphery of the vertical rods (148, 149), respectively, and down the electromagnet 152.

The electromagnet loader 140 adsorbs the gunnail 2 in the normal bending state contained in the container 130 to the bottom surface of the electromagnet 152 while moving left and right by the cylinders 70 and 143 and then the buffer conveyor. It is delivered to the empty container 30 at the input position P1 of (5) and then returned to wait for the next handing (2) delivery.

FIG. 27 is a flow chart of the buffer conveyor 5 shown as an example of the present invention, in which the handrail 2 (step S1) arrived at the carrying out portion 1a by the conveyor 1 inspects a bending defect in the defect inspection unit. (Step S2) When it is determined that the rubber band (B) is separated and is defective, the defective handrail 2x is discharged (ejected) to the discharge chute or the discharge box 137 (step S3) to the normal handrail 2 Do not mix and pack, and if the bending state is a normal handrail (2), it is adsorbed by the electromagnet loader 140 (step S4) and transferred to the empty container 30 at the input position (P1) of the buffer conveyor (5) (Step S5), when it is confirmed that the handrail 2 is introduced into the empty container 30 at the input position P1 by the first optical switch 21 (step S6), the container 30 is moved by the forward pusher 15. Pushes it forward to the conveyor 12 to move forward to the discharge standby position (P3) (step S7), if there is a container 30 in the discharge standby position (P3) and waits at the stop position (P2) (step S9),If there is no container 30 at the stand-by position P3 (step S8), the container 30 is pushed to the discharge position P4 by pushing the container 30 with the discharge pusher 17 (step S10), and the container 30 is discharged ( Upon arrival at P4) (step S11), the packing robot 6 absorbs the handrail 2 contained in the container 30 with an electromagnetic force, and then transfers it (packages) to the packing box 8 (step S12) and wraps it. If there is no handrail 2 in the container 30 at the discharge position P4 (step S13), the empty container 30 is pushed by the return pusher 18 and transferred to the return conveyor 14 to the input standby position P5. To return to step (S14), and if there is an empty container 30 in the input standby position (P5) (step S15), without the empty container 30 in the input standby position (P5) (step S16) If there is no empty container 30 at the position P1 (step S17), the empty container 30 is pushed to the feeding position pusher 19 and transferred to the feeding position P1 (step S18). When the normal handrail 2 is input, the above flow process is reversed. Automatic packaging of the coiled nails 2 is achieved while replicating.

In the present invention, the bending state of the handrail 2 is checked by the input means 3, and the normal handrail 2 will be described with reference to the process of putting the buffer conveyor 5 as follows.

First, the moving plate 81 is moved by the immersion operation of the cylinder 70 in the state in which the handrail 2 bent to the rubber band B by the conveyor 1 is stopped moving to the carrying out part 1a. The guide rods 68 and 69 move in the right direction in FIG. 18, and the transport jig 80 stops on the upper side of the handrail 2 of the carrying out portion 1a, and the lowering operation of the cylinder 84 is performed. The tongs 99 and 100 are lowered to the handrail 2 of the carrying out portion 1a, but the upper surface of the tongs 99 and 100 is lowered to a position slightly lower than the nail head, and the bidirectional cylinder 94 When the tongs 99 and 100 are collapsed by the immersion operation of the upper part of the handrail 2, the upper part of the handrail 2 is picked up, and the tongs 2 are raised while the tongs 99, 100 are raised by the upward movement of the cylinder 84. The nail head of the tongs (99, 100) while being caught on the upper surface is to rise along the tongs (99, 100).

In the above case, when the band B is bent on the handrail 2 and the band B is normal, there is no rise of the pressurizing parts 105 and 106 and the lifting rods 107 and 108. When (B) picks up the handrail (2) in a bad banding state (the end of the handnail is unwound), which is separated or missing, the nail (2c) head of the handrail (2) pushes the lifting rod 108 As the sensing unit 113 is raised while being raised to be detected by the proximity sensor 111, the sensing unit 113 is detected as a bad handrail 2x, and the defect detection signal is input to the controller.

When the tongs 99 and 100 pick up the handrail 2, the rubber band B is not separated and separated, but even when the tongs 99 and 100 are separated, the rubber band B is separated and separated. Since the end of the nail (2) is released to push the pressing portion (105 or 106), the sensing unit 113 is raised and detected by the proximity sensor (110 or 111), so it is detected as a bad thumbnail (2x) The failure detection signal is input to the controller.

On the other hand, the handrail 2 picked up by the tongs 99 and 100 is raised by the lifting operation of the cylinder 84, and the moving plate 81 is moved to the left side of FIG. After moving and stopping at the upper portion of the bucket 310, the tongs 99, 100 and the handrail 2 are lowered by the lowering operation of the cylinder 84, and the handnail 2 is introduced into the container 130. As a result of the protruding operation of the bidirectional cylinder 94, the handrail 2, which is separated while the front and rear tongs 99 and 100 are opened, is seated on the bucket 310 as shown in FIG. The tongs 99 and 100 are returned upward.

When it is determined that the tongs 99 and 100 fall and pick up the handrail 2 as bad, the motor 132 operates as shown in FIG. 19, while the bucket 310 is rotated by 90 ° or more in the direction of the arrow. When the defective handrail 2x contained in the bucket 310 is poured into the accommodation chamber 138, the motor 132 reverses to cause the bucket 310 to rotate back about the shafts 128 and 129 to return. The through hole 136 of the fixing plate 125 to which the bucket 310 is fixed is held horizontally while being caught by the insertion part 135 of the stopper 134.

When the tongs 99 and 100 are lowered and the bending state is picked up when picking up the handrail 2 in the above, the moving plate 81 is guided by the immersion operation of the cylinder 70. 69 moves to the right direction of FIG. 18, the electromagnet loader 140 stops on the bucket 310, and the tongs 99 and 100 move to the bucket 310 by the lowering operation of the cylinder 84. Lower the normal nail (2) contained in the upper surface of the tongs (99, 100) is lowered to a position slightly lower than the nail head of the nail (2) to stop, the pliers by the immersion operation of the bi-directional cylinder (94) When (99) (100) is pinched, the upper part of the handrail (2) is picked up, and the nail head (2) of the handrail (2) is lifted up by the ascending motion of the cylinder (84). 99) (100) while being caught on the upper surface of the forceps (99, 100), the moving plate 81 is moved to the left side of Figure 18 by the protruding operation of the cylinder 70 to the buffer conveyor (5) Input position (P1) top Then, the tongs (99) (100) and the handrail (2) are lowered by the lowering operation of the cylinder (84) and the handrail (2) in the normal state into the empty container (30) at the injection position (P1). When this is input, the handrail 2, which is separated while the front and rear tongs 99 and 100 are opened as shown in FIG. 21 by the protruding operation of the bidirectional cylinder 94, rests on the container 30, and the cylinder 84 As the tongs 99 and 100 are raised and returned by the ascending operation, the input of the handrail 2 to the buffer conveyor 5 is completed, and the handrail 2 is transferred to the buffer conveyor 5 by repeating the above process. Automatically, the handrail 2 introduced into the empty container 30 of the buffer conveyor 5 is stopped and moved to the discharge position P4 as described above, and then automatically packed by the packaging robot 6. Reference numeral 4 is a bottom plate, and 64 is a reinforcing member.

The present invention described above is not limited to the present embodiment and the accompanying drawings, and various substitutions, modifications, and changes are possible without departing from the technical spirit of the present invention, and this is in the technical field to which the present invention belongs. It is self-evident for those of ordinary knowledge.

Claims (10)

Handrails conveyed to a conveyor; Hand holding means for injecting the hand with a buffer conveyor; A bending inspection unit installed at the feeding means and inspecting a bending state of the handrail; A conveying jig installed in the feeding means and introduced into the bucket after the bending state is checked into the bucket; An electromagnet loader which sucks the handrail of the container and feeds the container into the container at the input position of the buffer conveyor; A packing robot for absorbing the handrail in the container moved to the discharge position of the buffer conveyor and then moving the packing robot into a packing box; Buffer conveyor system for packaging handrails comprising a. The method of claim 1 wherein: Buffer conveyor, An input position into which the handrail is input; A stop position for advancing the container containing the handrail and stopping when another container is located at the discharge standby position; A discharge standby position waiting before the container containing the handrail moves to the discharge position; A discharge position at which the handrails contained in the container are discharged for packaging; An input standby position which waits before the empty container from which the handrail is discharged returns to the input position after return; Buffer conveyor system for packaging handrails including a. The method of claim 1 or 2, wherein: Buffer conveyor, Advancing conveyor for moving the container of the input position containing the handnail to the discharge standby position; A return conveyor for moving the empty container of the discharge position from which the handrail is discharged to an input standby position; A discharge conveyor for guiding the container at the discharge standby position to a discharge position; An input conveyor for guiding the empty container at the input standby position to an input position; A container mounted on an upper surface of the roller constituting the conveyor and moving to each position; Buffer conveyor system for packaging handrails including a. The method of claim 1 or 2, wherein: Buffer conveyor, A forward pusher for pushing the container in the feeding position to the forward conveyor; A stop pusher for stopping the vessel when it is waiting at the discharge standby position; A discharge pusher for pushing the container in the discharge standby position to the discharge position; A return pusher for pushing the empty container in the discharge position to the return conveyor; An input pusher for pushing the container at the input standby position to the input conveyor; Proximity sensor for sensing the container in the input standby position; Proximity sensor for sensing the vessel in the discharge standby position; A first optical switch detecting a presence or absence of a handrail in the input position container; A second optical switch for sensing presence or absence of a handrail of the stop position container; A third optical switch configured to sense whether a discharge standby position container is passed; A fourth optical switch for sensing whether a discharge position container is passed; Buffer conveyor system for packaging handrails including a. The method of claim 4 wherein: The first, second, third, and fourth optical switches are a combination of a light transmitting switch, and an infrared optical switch for detecting light from the light projected by the light switch after being reflected on the handrail and then entering the light receiving switch. Buffer conveyor system for packaging. The method of claim 1 or 2, wherein: Both sides of the forward conveyor 12 are shaft-mounted on a pair of left and right support members 31 and 32 fixed to the bottom plate 10, Side plates 47 and 49 are fixed to the upper portions of the support members 31 and 32, Synthetic resin plates 48 and 50 are fixed to the inner side surfaces of the side plates 47 and 49 to prevent the container 30 from being moved away, Both sides of the return conveyor 14 are shaft-mounted on a pair of left and right support members 33 and 34 fixed to the bottom plate 10, Side plates 51 and 53 are fixed to upper portions of the support members 33 and 34, Synthetic resin plate (52) (54) is fixed to the inner surface of the side plate (51) (53), respectively, so that the separation of the moving container 30 in the handrail packaging buffer conveyor system. The method of claim 1 or 2, wherein: Courage is, A cylindrical body 30a having an upward opening portion 30h formed therein to hold a hand nail; An inclined portion 30d formed in the upper portion of the body 30a and gradually opening toward the upper portion so that the handnail 2 can be easily introduced; A bottom plate 30e configured at the bottom of the body 30a; Protruding frame 30b protruding outward from the lower portion of the body 30a; Buffer conveyor system for packaging handrails including a. The method of claim 4 wherein: The sensing height of the first, second, third, and fourth optical switches is higher than the height of the container 30 seated on the conveyor and lower than the upper height of the handrail 2 to be inserted into the container 30, and is inserted into the container 30. Buffer conveyor system for packaging a handrail, characterized in that to detect only the handrail (2). The method of claim 1 or 2, wherein: In the forward conveyor 12, a plurality of rollers are interlocked in the same direction by the motor 41 and the power transmission means, and the return conveyor 14 is interlocked in the same direction by the motor 45 and the power transmission means. , The input conveyor 11 and the discharge conveyor (13) is a buffer conveyor system for hand packaging, characterized in that the driven rotation. The method of claim 1 or 2, wherein: The way to put the handrail, Vertical plate 65 is fixed to the top of the strut (63); Fixing members 66 and 67 fixed to both front sides of the vertical plate 65; Guide rods 68 and 69 fixed in parallel to upper and lower portions of the fixing members 66 and 67; A plurality of blocks (73) (74) (75) (76) which are respectively slid to the left and right sides of the guide rods (68) (69); Moving plates 81 fixed to the front of blocks 73, 74, 75 and 76; A bracket 72 fixed to one side of the moving plate 81; A cylinder 70 fixed to the front surface of the vertical plate 65 and parallel to the guide rods 68 and 69; An end of the cylinder rod 71 fixed to the bracket 72; A stopper 78 installed at each of the fixing members 66 and 67 and adjusting the protrusion degree so as to determine the left and right movement stroke of the moving plate 81; Shock absorbers 79 installed on the fixing members 66 and 67, respectively, to cushion the moving plate 81; A transport jig 80 and an electromagnet loader 140 installed on the front surface of the moving plate 81; Buffer conveyor system for packaging handrails including a.

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