JP6685590B2 - Equipment for supplying objects to be packaged - Google Patents

Description

  The present invention receives an article to be packaged from a conveying device arranged adjacent to each other, changes the posture of the article to be packaged from a substantially horizontal state to a substantially vertical state, and a pair of grippers grips both side edges to open a bag mouth. The present invention relates to a supply device for a packaged object that supplies a bag suspended upward.

  Patent Document 1 describes a device for supplying a packaged object which receives the packaged object from a belt conveyor, changes the posture of the packaged object from a horizontal state to a vertical state, and supplies the package to the bag. This supply device is installed in the arm member 4 which rotates about 90 degrees, upper and lower grip plates (7a, 7b) installed at the tip of the arm member, and inside the arm member to open and close the upper and lower grip plates. It consists of an air cylinder 6. When the article to be packaged reaches a predetermined position on the belt conveyor, the pushing means (9) pushes the article to be packaged onto the lower gripping plate, the air cylinder is actuated to close the upper and lower grasping plates, and the article to be packaged is moved upward. And between the lower grip plates. Subsequently, the arm member pivots downward by about 90 degrees, the posture of the object to be packaged is changed from the horizontal state to the vertical state, and then the air cylinder is actuated in reverse to open the upper and lower gripping plates, so that the object to be packaged is opened. Is dropped and stored in the bag with the bag mouth facing upward.

  Patent Document 2 includes a device having a plurality of groove type pedestals (13) that move along a horizontal annular path, and a pair of conveyor belts (20, 21) to change the posture of a packaged object from a horizontal state. A device for supplying a packaged object which is changed into a vertical state and is supplied to a bag is described. The grooved pedestal inclines at a predetermined position on the annular path, the object to be packaged slides down from the grooved pedestal, is vertically sandwiched between the pair of conveyor belts, and is conveyed downward in that state. Then, the bag is dropped and stored in the bag with the bag mouth facing upward.

  Patent Document 3 describes a supply device for a packaged object that receives the packaged object from a belt conveyor, changes the posture of the packaged object from a horizontal state to a vertical state, and supplies the package with the bag mouth facing upward. ing. This supply device comprises a primary cushioning mechanism (30) including a guide base (32) and a shut plate (34), a shut plate opening / closing mechanism, and a swivel mechanism of the primary cushioning mechanism. When stored, the primary cushioning mechanism swivels downward, the posture of the packaged item is changed from the substantially horizontal state to the vertical state, and then the shut plate is opened, and the packaged item is dropped and stored in the bag. .

Utility model registration No. 2509973 Utility model registration No. 2551452 JP, 2009-18820, A

According to the supply device of the to-be-packaged article described in patent documents 1-3, the to-be-packaged article conveyed by the conveyance apparatuses, such as a belt conveyor, in the horizontal state was hung with the bag mouth upward. In the case of supplying to the bag, the posture of the object to be packaged can be changed to the vertical state and the bag can be supplied to the bag in that state. However, each of the above-mentioned supply devices has the following problems.
When the package is supplied to the bag by the supply device described in Patent Document 1, the belt conveyor is stopped, the extrusion means is reciprocally operated, the upper and lower grip plates are closed, and then the arm member is rotated 90 degrees. After that, many steps of opening the upper and lower grip plates are required, and it is difficult to increase the supply pitch of the packaged items.

  When the article to be packaged is supplied to the bag by the supply device described in Patent Document 2, when the article to be packaged is slid obliquely from the groove type cradle and falls between the pair of conveyor belts, the article to be packaged is belted. There is a risk of positional deviation or inclination in the width direction. Also, in the case where the shape of the object to be packaged is easily deformed by external force or gravity, for example, in the case of a bag filled with granular materials (inner bag), the impact when the inner bag falls between a pair of conveyor belts Also, the granular material moves to the lower portion of the inner bag due to gravity, and the thickness of the lower portion of the inner bag increases. The particulate matter collected in the lower part of the inner bag passes between the pair of conveyor belts in the vertical state of the inner bag, and even if the inner bag is squeezed between the pair of conveyor belts at that time, it is difficult to move upward. The condition where the thickness of the lower part of the bag is large cannot be easily resolved. Therefore, it may happen that the inner bag does not enter the bag opening of the hopper or the bag (outer bag) below (the outer bag is generally designed to be tight with respect to the inner bag).

  Even in the supply device described in Patent Document 3, in the case where the shape of the object to be packaged is easily deformed by an external force or gravity, for example, in the case of a bag filled with granules (inner bag), the inner bag is primary from the belt conveyor. While being sent to the cushioning mechanism and the primary cushioning mechanism turns, the granular material moves to the lower portion of the inner bag, and the thickness of the lower portion of the inner bag increases. This supply device does not have a function of returning the deformed inner bag to a constant thickness, so that the inner bag may not enter the bag opening of the lower hopper or bag (exterior bag).

  The present invention thus changes the posture of the article to be packaged from a substantially horizontal state to a substantially vertical state, and in the article-to-be-packaged supply device for supplying the lower bag, positional deviation or inclination of the article to be packaged is unlikely to occur, A device for supplying a packaged object that can be supplied to the bag with a constant thickness even in the case of a packaged object whose shape is easily deformed (for example, an interior bag filled with granules) and can increase the supply pitch of the packaged object The purpose is to provide.

The present invention receives an article to be packaged from a conveying device arranged adjacent to each other, changes the posture of the article to be packaged from a substantially horizontal state to a substantially vertical state, and a pair of grippers grips both side edges to open a bag mouth. In a device for supplying an object to be packaged to be supplied to a bag suspended upward, the object to be packaged is an interior bag filled with a granular material, and a pair of upper and lower belts for compressing and conveying the object to be packaged. A conveyor and a belt drive mechanism for rotating each belt of the pair of belt conveyors, the pair of belt conveyors and the belt drive mechanism are rotated together about an axis perpendicular to the conveying direction of the belt conveyor, and the pair of belts. comprising a turning mechanism to change the conveying direction of the conveyor downwards, the pair of belt conveyors the articles to be packaged prior to the turning mechanism to change the conveying direction of the pair of belt conveyors downward The nipped, characterized that you conveyed downward in a state in which nipped the objects to be packaged.

The device for supplying the packaged object can take the following embodiments.
(1) The turning mechanism includes a main rotating shaft that rotates about the shaft, a drive source that rotates the main rotating shaft, and a support member that is fixed to the main rotating shaft, and the pair of belts are provided on the support member. A conveyor and belt drive mechanism is installed.
(2) An interval adjusting mechanism that adjusts an upstream interval of the pair of belt conveyors in a transport direction is provided, and when the upstream interval of the pair of belt conveyors is narrowed by the interval adjusting mechanism, the pair of belts The article to be packaged is clamped between both belts of the conveyor.
(3) In the case of the above (2), each belt of the pair of belt conveyors is stretched around a pair of rotary rollers arranged on the upstream side and the downstream side in the transport direction, and at least one of the belt conveyors is It is installed so as to be swingable about the axis of the rotary roller on the downstream side in the transport direction, and is swung by the operation of the spacing adjusting mechanism to adjust the upstream spacing in the transport direction of the pair of belt conveyors.

(4) A control device that controls the operation of each drive source of the belt drive mechanism and the turning mechanism, and a first sensor that detects that the packaged object is conveyed by the pair of belt conveyors and reaches a predetermined position, or And / or a second sensor for detecting that the object to be packaged is housed in the bag, and the controller controls each of the drive sources based on a detection signal of the first sensor or / and the second sensor. Control operation.

According to the packaged object supply device of the present invention, since the transfer and the change of the posture of the packaged object are performed while being pinched by the pair of belt conveyors, the packaged object is supplied until it is supplied to the bag. Misalignment of the package is unlikely to occur. Further, the number of steps required for receiving the article to be packaged by the pair of belt conveyors and supplying it to the bag is small, and the supply pitch of the article to be packaged can be increased.
When supplying a packaged product whose shape is easily deformed (for example, an interior bag filled with granular material), the packaged product received in a substantially horizontal state is clamped by a pair of belt conveyors, or conveyed in a clamped state. Therefore, when the object to be packaged is deformed, the deformation can be corrected (returned to a constant thickness). Then, even if the posture of the packaged bag is changed to a substantially vertical state, since the packaged bag is pinched by the pair of belt conveyors, the packaged bag does not deform (the granular material in the lower part of the bag is It can be supplied to the lower bag (outer bag) with a constant thickness (without accumulating in the bag).

It is a front view of the to-be-packaged goods supply apparatus which concerns on this invention. It is an AA arrow side view of the said supply apparatus. It is a left side view of the supply device. It is a side view which shows operation | movement of the said supply apparatus in order of a process (acceptance of a to-be-packaged object). It is a side view which shows operation | movement of the said supply apparatus in order of a process (conveyance of a to-be-packaged object). It is a side view which shows operation | movement of the said supply apparatus in order of a process (posture change of a to-be-packaged object). It is a side view which shows operation | movement of the said supply apparatus in order of a process (input of a to-be-packaged object).

Hereinafter, with reference to FIGS. 1 to 7, a device for supplying a packaged object (a loading press conveyor) according to the present invention will be specifically described.
First, the structure of the supply device 10 according to the present invention will be described mainly with reference to FIGS.
The supply device 10 includes a pair of belt conveyors 1 and 2 arranged vertically, belt driving mechanisms 5 and 6 for rotating the belts 3 and 4 of the belt conveyors 1 and 2, and upstream of the belt conveyors 1 and 2 in the conveying direction. It has a gap adjusting mechanism 7 for adjusting the side gap, and a turning mechanism 8 for turning the belt conveyors 1, 2 and the belt driving mechanisms 5, 6.

  The turning mechanism 8 includes a main rotating shaft 9 installed horizontally, a drive source (motor) 12 installed on a stand 11 for rotating the main rotating shaft 9, and a support member 13 fixed to the main rotating shaft 9. Become. The main rotating shaft 9 rotates about an axis X1 which is perpendicular to the conveying direction of the belt conveyors 1 and 2. The support member 13 includes a regular quadrangular prism type main block 14 directly fixed to the main rotation shaft 9, L-shaped blocks 15 and 16 symmetrically fixed to a pair of facing surfaces of the main block 14, and an L-shaped block. Consists of a conveyor support block 17 fixed to the end faces of 15 and 16. The motor 12 rotates the main rotation shaft 9 forward and backward by 90 °, and accordingly, the support member 13 rotates forward and backward by 90 °, and the belt conveyors 1 and 2 and the belt driving mechanisms 5 and 6 turn forward and backward by 90 °.

  The pair of belt conveyors 1 and 2 includes a pair of rotating rollers 18 and 19 on which the belt 3 is stretched, a pair of rotating rollers 21 and 22 on which the belt 4 is stretched, and the rotating rollers 18, 19 and 21. , 22 which include rotating shafts 23 to 26 fixed to the centers thereof. One end of the rotary shaft 23 is rotatably supported by one end of the frame 27 (an upstream end in the transport direction), and the other end is rotatably supported by one end of the frame 28 (an upstream end in the transport direction). There is. One end of the rotating shaft 24 is rotatably supported by the other end of the frame 27 (an end on the downstream side in the transport direction), and an intermediate part is supported by the other end of the frame 28 (an end on the downstream side in the transport direction) and the conveyor support block 17. Is rotatably supported at the other end, and the other end extends further from the conveyor support block 17, and the pulley 34 of the belt drive mechanism 5 described later is fixed. One end of the rotating shaft 25 is rotatably supported by one end of the frame 29 (an upstream end in the transport direction), and the other end is rotated by one end of the frame 31 (an upstream end in the transport direction) and the conveyor support block 17. It is supported freely. One end of the rotary shaft 26 is rotatably supported by the other end of the frame 29 (an end on the downstream side in the transport direction), and an intermediate part is supported by the other end of the frame 31 (an end on the downstream side in the transport direction) and the conveyor support block 17. Is rotatably supported on the other end, and the other end extends further from the conveyor support block 17, and a pulley 38 of the belt drive mechanism 6 described later is fixed. With this structure, the belt conveyor 1 can swing about the axis X2 of the rotary shaft 24 (rotary roller 19).

  The belt drive mechanism 5 for operating the belt conveyor 1 is fixed to the drive source (motor) 32 installed in the L-shaped block 15, the pulley 33 fixed to the rotary shaft of the motor 32, and the end of the rotary shaft 24. It comprises a pulley 34 and a belt 35 wound around the pulleys 33, 34. The belt drive mechanism 6 for operating the belt conveyor 2 has a symmetrical structure to the belt drive mechanism 5, and has a drive source (motor) 36 installed in the L-shaped block 16 and a pulley fixed to the rotation shaft of the motor 36. 37, a pulley 38 fixed to the end of the rotary shaft 26, and a belt 39 stretched over both pulleys 37, 38. The motors 32 and 36 operate or stop at the same time. When the motors 32 and 36 operate, the rotating shafts 24 and 26 and the rotating rollers 19 and 22 rotate via the pulleys 33 and 37, the belts 35 and 39, and the pulleys 34 and 38, and the belts 3 and 4 rotate in opposite directions. To do.

  The interval adjusting mechanism 7 is fixed to a bracket 41 fixed to a substantially central portion in the length direction of the frame 29, a drive source (air cylinder) 42 installed on the bracket 41, and a piston rod of the air cylinder 42. The lifting member 43 and a connecting member 44 that connects the lifting member 43 and the frame 27 (frame of the belt conveyor 1). When the air cylinder 42 operates, the belt conveyor 1 swings around the axis X2 of the rotating shaft 24 (rotating roller 19), and the distance between the pair of belt conveyors 1 and 2 on the upstream side in the conveying direction is adjusted.

The supply device 10 includes a control device 45 that controls the operations of the motors 12, 32, 36 and the air cylinder 42 based on detection signals of a first sensor 48 and a second sensor 52 described later.
A transport device (belt conveyor) 46 is installed adjacent to the upstream side of the supply device 10 (upstream side in the transport direction of the pair of belt conveyors 1 and 2). The transport device 46 continuously transports the horizontally placed object 47 to be packaged toward the supply device 10.

Next, the operation of the supply device 10 will be described with reference to FIGS.
In FIG. 4, the belt conveyor 2 is horizontal, while the belt conveyor 1 is swung upward about the axis X2 of the rotating shaft 24 (rotating roller 19) and tilted by the air cylinder 42 operating. The distance between the upstream side and the downstream side of the conveying direction 1 and 2 is widened. The article 47 to be packaged on the transport device 46 reaches the vicinity of the belt conveyors 1 and 2, and the belt conveyors 1 and 2 are operating (the belts 3 and 4 rotate in opposite directions). The packaged object 47 is a bag (interior bag) filled with a granular material (for example, rice).

  On the upstream side of the conveyor directions of the belt conveyors 1 and 2, the interval between the belt conveyors 1 and 2 (the interval between the belts 3 and 4) is wider than the thickness of the article to be packaged 47. Is smoothly fed between the belt conveyors 1 and 2 and is continuously conveyed to the downstream side by the belt conveyors 1 and 2. Since the distance between the belt conveyors 1 and 2 is narrowed toward the downstream side, the article 47 to be packaged is conveyed while being clamped between the belt conveyors 1 and 2 from the middle.

  As shown in FIGS. 4 and 5, a first sensor 48 that detects that the article 47 to be packaged has been conveyed by the belt conveyors 1 and 2 and has reached a predetermined position is installed as a part of the supply device 10. The first sensor 48 may be installed at a portion that is swung by the operation of the swivel mechanism 8 like the conveyor support block 17 or the frames 27 and 29, or may be installed at a fixed position that does not move. When the first sensor 48 detects the leading end of the article to be packaged 47 conveyed by the belt conveyors 1 and 2, a detection signal is sent to the control device 45, the motors 32 and 36 are stopped, and at the same time, the air cylinder 42 is reversed. 5, the belt conveyor 1 swings downward about the axis X2 of the rotating shaft 24 (rotating roller 19) and becomes horizontal as shown in FIG. In the horizontal state (to be exact, between the belts 3 and 4), the pressure is applied over the entire length.

  Subsequently, the motor 12 operates to rotate the main rotating shaft 9 by 90 °, and as shown in FIG. 6, the belt conveyors 1 and 2 turn 90 ° (right turn in FIG. 6) and become vertical, and the bag to be packaged. The posture of 47 is also changed from the horizontal state to the vertical state. Since the packaged bag 47 is pressed between the belt conveyors 1 and 2 over its entire length, it does not slide down or deform (the granular material inside does not accumulate at the bottom of the bag), and the bag is kept constant. Keeps the thickness.

  In FIG. 6, a bag (exterior bag) 49 is positioned immediately below the belt conveyors 1 and 2 and is stopped by grasping the upper side edges by a pair of grippers (only one gripper 51 is shown in FIG. 6) and stopping the bag mouth. It is open. The gripper 51 is, for example, a vertical bag filling and packaging machine (including a plurality of pairs of grippers that move intermittently, a pair of grippers grips the upper edges of both sides and hangs the bag mouth upward, It is a gripper for an automatic packaging machine that sequentially performs various packaging processes including opening of a bag mouth, filling of an object to be packaged, and sealing of a bag mouth. The bag transfer path may be circular, linear, racetrack-shaped, or the like.

Subsequently, the motors 32 and 36 are operated again and the belt conveyors 1 and 2 are operated, so that the article 47 to be packaged is conveyed downward and directly (without a hopper or the like) supplied (inserted) into the bag 49.
As shown in FIG. 7, a second sensor 52 that detects that the article 47 to be packed placed in the bag 49 has reached the bag bottom is installed as a part of the supply device 10. When the second sensor 52 detects the leading end of the article to be packaged 47 that has reached the bag bottom, a detection signal is sent to the control device 45, and the motors 32 and 33 stop.
Then, the motor 12 operates to rotate the main rotating shaft 9 in the opposite direction by 90 °, and the belt conveyors 1 and 2 turn 90 ° in the opposite direction (turn left in FIG. 6) to be horizontal. Further, the air / air cylinder 42 operates, the belt conveyor 1 swings upward around the axis X2 of the rotating shaft 24 (rotating roller 19), and tilts from the horizontal plane (see FIG. 4), and the motors 32 and 33 also start operating. Then, it waits for the next conveyance of the article to be packaged 47.

  In addition, in the above example, the supply device 10 includes the interval adjustment mechanism 7, but this is not essential. When the belt conveyors 1 and 2 receive the article to be packaged 47 from the conveyor device 46, even if the distance between the belt conveyors 1 and 2 on the upstream side in the conveying direction is not widened as shown in FIG. 4 (as shown in FIG. 5). Even when the belt conveyors 1 and 2 are both arranged horizontally), the articles 47 to be packaged can be received and conveyed by the rotation of the belt conveyors 1 and 2 in the conveying direction. In this case, since the article to be packaged 47 is received between the belt conveyors 1 and 2 in a state of being clamped from above and below and is conveyed in a state of being clamped, the thickness of the article to be packaged 47 is initially uneven. However, even in such a case, it is easy to have a uniform thickness in the process.

  Further, in the above example, after stopping the rotation of the belt conveyors 1 and 2 which convey the article to be packaged 47 in a horizontal state, the air cylinder 42 of the interval adjusting mechanism 7 is operated in reverse to move the belt conveyor 1 downward. Although it was oscillating, immediately after the belt conveyors 1 and 2 have received a part or all of the whole length of the article to be packaged 47, the air cylinder 42 is operated in reverse, and the belt conveyor 1 is oscillated downward to be horizontal. You can also Also in this case, since the article to be packaged 47 is conveyed by the belt conveyors 1 and 2 while being pressed from above and below, even if the thickness of the article to be packaged 47 is initially nonuniform, it is uniform in the process. Easily leveled to thickness.

1, 2 Belt conveyors 3, 4 Belts 5, 6 Belt drive mechanism 7 Interval adjustment mechanism 8 Swiveling mechanism 9 Main rotation shaft 10 Supplying device 12, 32, 36 Motor 18, 19, 21, 22 Rotating roller 23 ~ 26 rotating shaft 42 air cylinder 47 packaged item 48 first sensor 52 second sensor

Claims (7)

Receiving an object to be packaged from a conveying device arranged adjacently, changing the posture of the object to be packaged from a substantially horizontal state to a substantially vertical state, and holding a pair of grippers on both side edges with the bag mouth facing upward. In a supply device for a packaged object to be supplied to a suspended bag, the packaged object is an interior bag filled with a granular material, and a pair of upper and lower belt conveyors capable of compressing and conveying the packaged object, A belt driving mechanism that rotates each belt of the pair of belt conveyors, and the pair of belt conveyors and the belt driving mechanism both rotate forward and backward at an angle of 90 ° about an axis perpendicular to the conveying direction of the pair of belt conveyors. is provided with a pair of pivoting mechanism to change from substantially or generally downward vertical direction from a horizontal direction to a generally downward vertical direction in the conveying direction of the belt conveyor to a substantially horizontal direction, the one that conveys the material to be packaged Downward direction of rotation of the belt of the belt conveyor is the same when the generally downward vertical direction and when the conveying direction is substantially horizontal direction, substantially the horizontal direction is the conveying direction of the pair of belt conveyors the pivoting mechanism The pair of belt conveyors presses the object to be packaged before changing to the substantially vertical direction, and conveys the object to be packaged downward in a substantially vertical direction while pressing the object to be packaged. .

The turning mechanism includes a main rotating shaft that rotates about the shaft, a drive source that rotates the main rotating shaft, and a supporting member that is fixed to the main rotating shaft, and the pair of belt conveyors and a belt on the supporting member. The device for supplying a packaged article according to claim 1, wherein a drive mechanism is installed. A pair of belt conveyors is provided with a gap adjusting mechanism for adjusting a gap on the upstream side in the transport direction, and when the gap on the upstream side of the pair of belt conveyors is narrowed by the gap adjusting mechanism, both of the pair of belt conveyors are provided. The device for supplying a packaged article according to claim 1 or 2, wherein the packaged article is pinched between the belts. Each belt of the pair of belt conveyors is stretched around a pair of rotating rollers arranged on the upstream side and the downstream side in the conveying direction, and at least one belt conveyor has a shaft of the rotating roller on the downstream side in the conveying direction. 4. The apparatus according to claim 3, wherein the distance between the pair of belt conveyors on the upstream side in the transport direction is adjusted by swinging the center of the pair of belt conveyors by swinging the center of the pair of belt conveyors. Equipment for supplying objects to be packaged. A control device that controls the operation of each drive source of the belt drive mechanism and the turning mechanism, and a first sensor that detects that the packaged object is conveyed by the pair of belt conveyors and has reached a predetermined position, and the control The device for controlling the operation of each of the drive sources based on a detection signal of the first sensor, the device for supplying a packaged article according to claim 1, wherein the device controls the operation of each of the drive sources. A control device that controls the operation of each drive source of the belt drive mechanism and the turning mechanism, and a second sensor that detects that the object to be packaged is housed in the bag, the control device being the second sensor. The operation of each of the drive sources is controlled on the basis of the detection signal of 5. The device for supplying a packaged article according to any one of claims 1 to 4. A second sensor for detecting that the packaged object is housed in the bag is provided, and the control device controls the operation of each drive source based on a detection signal of the second sensor. The device for supplying a packaged object according to claim 5.

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