JP4313793B2 - Bagging assist device - Google Patents

Description

  The present invention stores a packaging bag body such as a nylon plastic bag in a stacked state in a bag body storage portion, takes out the bag body one by one from here and puts the contents into the bag body, and assists in bagging It relates to the device.

  A holding member is brought into contact with or pressed on the uppermost surface of a large number of stacked bag bodies to move in the feeding direction, and the bag body is sequentially fed to the conveying surface, and the lower surface of the fed bag body is frictioned. A member that abuts or presses the member to generate relative displacement on the upper and lower surfaces of the bag body, and to peel the upper and lower surfaces of the bag body, hold the upper surface side of the peeled bag body, suspend and transport to the supply position A packaging bag supply device including a gripping / conveying means has been proposed (Patent Document 1).

  The packaging bag supply device of Patent Document 1 supplies the bag with the bag mouth being very easy to open, or with the bag mouth open, but the bag filling operation for charging the contents into the bag is performed. I could not. Therefore, it is desired to develop a bag filling auxiliary device capable of continuously performing not only the bag body supply but also the bag filling operation.

However, since the operator's hand can intervene when throwing in the contents with a simple device, it is equipped with a detection means when the operator's hand enters so that the operator's hand and the operation of the device do not interfere. It is necessary to consider safety. For example, a light safety device in a press machine has been proposed (Patent Document 2).
JP-A-7-237609 JP 2002-120099 A

As described above, not only the supply of the packaging bag but also the bagging operation can be performed continuously, and there is no bagging auxiliary device that has a simple structure and assists the bag body to be taken out.
In addition, the light safety device of Patent Document 2 merely stops an emergency when the operator's hand or the like is detected.

  The present invention has been proposed in view of the above, and can not only take out the stacked and stored packaging bags, but also perform a bagging operation that opens the mouth of the bag and puts the contents inside. When putting the contents into the bag, safety is ensured so that the operator's hand and the operation of the device do not interfere with each other, and the bag body can be easily taken out and assisted. The purpose is to provide.

The present invention has been proposed in order to achieve the above-described object. According to the first aspect of the present invention, there is provided a bag body storage section capable of storing a plurality of packaging bag bodies in a stacked state, and a bag body storage section. And a bag body take-out mechanism that takes out the bag body one by one and transfers it to the content input position with the bag body facing upward,
A clamping mechanism that clamps both the left and right sides of the mouth of the bag body at the loading position;
An adsorption mechanism that opens in the mouth of the bag body by moving in a direction in which at least one of the front adsorption mechanism that adsorbs the front part of the bag body and the rear adsorption mechanism that adsorbs the rear part of the bag body is separated;
A funnel mechanism having a funnel that can move forward and backward between the left and right clamp mechanisms and is movable up and down;
With
Set the funnel working position to insert the funnel into the mouth of the bag body when putting the contents between the left and right clamping mechanisms,
A scanning line detecting means for detecting scanning lines running in the left-right direction is provided on the funnel working position, and a control device for controlling the operation of the funnel mechanism and the clamping mechanism is provided based on the detection signal of the scanning line detecting means. ,
The controller is
When the scanning line detection means detects the interruption of the scanning line during the advance movement of the funnel, based on the detection signal, an emergency stop mode for emergency stop of the funnel movement;
When the loading of the contents is completed and the scanning line detecting means detects the interruption of the scanning line when the bag is taken out, it can be switched to the taking-out assist mode for releasing the clamp of the clamping mechanism based on the detection signal. It is a bagging assistance device characterized by being.
The side closer to the operator is the front part of the apparatus, and the opposite side is the rear part. The direction toward the operator side is forward and the direction toward the opposite side is backward. Moreover, in this application, it is based on this also about front and back.

  According to a second aspect of the present invention, there is provided the bagging assistance device according to the first aspect, wherein the control device maintains an emergency stop mode while the funnel mechanism is operating.

  According to a third aspect of the present invention, when the scanning line detecting means detects the interruption of the scanning line in the take-out assist mode, the control device clamps the clamp mechanism after a predetermined delay time based on the detection signal. It is cancelled | released, It is a bagging assistance apparatus of Claim 1 or 2.

  According to a fourth aspect of the present invention, when the scanning line detecting means first detects the interruption of the scanning line after the emergency stop mode is released, the content is input based on the detection signal. When the start of work is detected, and then the scanning line detection means detects the return of the scanning line, based on the detection signal, the completion of the content input work is detected, and then the scanning line detection means detects the interruption of the scanning line. 4. The bagging assisting device according to claim 1, wherein when detecting, the clamping of the clamping mechanism is released based on the detection signal.

  According to a fifth aspect of the present invention, there is provided weight change detecting means for detecting a weight change of the bag body clamped by the clamp mechanism, and when the weight change detecting means detects a preset weight increase, the detection signal Based on the above, it is detected that the input of the contents is completed, and when the scanning line detecting means detects the interruption of the scanning line after that, the clamping of the clamp mechanism is released based on the detection signal. It is a bagging assistance apparatus in any one of Claim 1 to 4.

  According to the first aspect of the present invention, the right and left sides of the mouth portion of the bag body are clamped by the clamp mechanism at the contents loading position, and the front and rear sides of the bag body are sucked by the rear suction mechanism and the front suction mechanism. Open the mouth of the bag, move the funnel of the funnel mechanism between the left and right clamp mechanisms, and insert the funnel into the bag mouth, so that you can surely take out the stacked packaging bags one by one. In addition, the bag filling operation of opening the bag mouth and putting the contents inside can be continuously performed.

  In addition, since the control device controls the operation of the funnel mechanism and the clamp mechanism based on the detection signal of the detection means in which the detection scanning line runs in the left-right direction above the funnel work position, in the emergency stop mode, When the operator's hand enters when the contents are inserted and the scanning line of the detection means is interrupted, the operator's hand can be prevented from interfering with the operation of the funnel mechanism to ensure safety. Further, in the take-out assist mode, the operator can easily release the bag body by automatically releasing the clamp of the clamp mechanism after the contents are inserted.

  According to the invention described in claim 2, since the emergency stop mode is maintained while the funnel mechanism is operating, the safety can be further ensured.

  According to the third aspect of the present invention, when the contents are completely charged and the operator's hand cuts off the scanning line when the bag is taken out, the clamp mechanism automatically clamps after a predetermined delay time has elapsed. Therefore, the operator does not need to perform a separate operation for releasing the clamp.

  According to the fourth aspect of the present invention, when the scanning line detecting means first detects the interruption of the scanning line after the emergency stop mode is canceled, the content input operation starts based on the detection signal. If the scanning line detection means detects the return of the scanning line after that, the completion of the loading operation is detected based on the detection signal, so that it is easy to detect the completion of the loading operation.

  According to the invention described in claim 5, when the weight change detecting means for detecting the weight change of the bag body clamped by the clamp mechanism is provided, and the weight change detecting means detects a preset weight increase, Based on the detection signal, it is detected that the content has been charged, so that a preset weight can be reliably charged, and the end of the charging operation can be reliably detected.

  The best mode for carrying out the present invention will be described below with reference to the drawings. 1 is a plan view of the bag filling auxiliary device, FIG. 2 is a right side view of the bag filling auxiliary device, FIG. 3 is a plan view and a front view of the clamping mechanism, and FIG. 4 is a plan view and a left side view of the funnel mechanism. is there.

The bag filling auxiliary device 1 of the present embodiment includes a bag body storage unit 11 that can store a plurality of packaging bags in a stacked state, a front suction mechanism 81 provided in front of the bag body storage unit 11, and a front A funnel mechanism 141 having a funnel 140 provided between the left and right clamp mechanisms 91 and 92; a right and left clamp mechanisms 91 and 92; The bag body take-out mechanism 31 provided above the storage unit 11 is an apparatus that is combined and integrated on the base 2, and is controlled by a control device 180 (see FIG. 6) provided inside the base 2. The devices operate in cooperation with each other, thereby assisting the operator in bagging work.
In the present application, the side closer to the worker is the front (left side in FIG. 1, left side in FIG. 2), the opposite side is the rear, the direction toward the worker is forward, and the opposite is the rear.

  As shown in FIGS. 1 and 2, the bag body storage unit 11 is disposed in the rear half of the base 2 and has a rectangular plate-like or pallet-like drawer that is larger than the bag body stored in a flatly stacked state. The tray 12 is provided integrally with the front end portion standing upright, and includes a plate-like front surface restricting portion 13 that restricts the front end portion of the bag body. A handle 14 for pulling the tray 12 forward is attached.

  In addition, angle-shaped (L-shaped) side surface restricting portions 15 and 16 for restricting the side end portions of the bag body from both the left and right sides are respectively arranged on the left and right portions of the drawer tray 12. The side regulating portions 15 and 16 can be adjusted in position along a horizontal guide groove (not shown) formed in the drawer tray 12 and can be fixed with a set screw or the like. Further, the baffle plates 17 and 18 are provided inside the front portions of the side regulating portions 15 and 16 at a distance narrower than the width of the bag body so that the position of the baffle plates 17 and 18 can be adjusted with the side regulating portions 15 and 16 in the left-right direction. . These baffle plates 17 and 18 function as baffles. An upright wall is erected, and the upper end of the upright wall is bent to the left and right center side of the bag body storage portion 11, that is, in the horizontal direction. The leading edge is used as a sliding contact portion for sliding contact with the bag body. Therefore, the sliding contact portions of the baffle plates 17 and 18 are arranged at a distance slightly narrower than the width of the bag body at a position spaced apart from the drawer tray 12 of the bag body storage section 11 by a predetermined height. An angle-shaped (L-shaped) rear surface restricting portion 19 for restricting the rear end portion of the bag body from the rear side is disposed at the rear portion of the drawer tray 12 with the bent side as the front side. A position 19 can be adjusted along a longitudinal guide groove (not shown) formed in the drawer tray 12 and can be fixed with a set screw or the like. That is, the bag storage part 11 is formed so that the position of the left and right side restricting parts 15 and 16 can be adjusted in the left and right direction and the rear face restricting part 19 can be adjusted in the front and rear direction according to the bag size.

  Angle-shaped (L-shaped) slide guide members 24 and 25 for regulating the left-right position of the drawer tray 12 are fixed to the left and right sides of the drawer tray 12 on the base 2 with the bent side inside. The slide guide members 24 and 25 are extended forward to guide the pull-out operation of the pull-out tray 12 to the front.

  On left and right sides of the rear end portion of the drawer tray 12, holding portions 26 and 27 are provided for holding the drawer tray 12 in the bag storage position. The holding portions 26 and 27 are rectangular members that can be magnetically attached by magnets such as iron, and are fixedly held by being magnetized by magnet catches 28 and 29 provided on the left and right of the rearmost portion of the base 2. It has become so.

  A bag body take-out mechanism 31 for sequentially taking out a plurality of bag bodies stored in a stacked state in the bag body storage section 11 one by one from the top is provided above the front side of the left and right central part of the bag body storage section 11. . This bag body take-out mechanism 31 is supported so as to hang down from the left and right center part of the rear section type frame 33 fixed on the base 2 so as to straddle the front upper side of the bag body storage part 11 to the left and right. A rear suction mechanism 41 is provided that can change its posture downward and forward by the moving mechanism 51. The rear suction mechanism 41 includes a rectangular reversing bracket 42 connected to a rotation mechanism 51 described later, two pairs of front and rear leg portions 43 and 44 suspended from four corners of the reversing bracket 42, and each leg portion 43 and 44. Each suction pad 45 is connected to the tip of an intake pipe connected to a decompression mechanism (not shown) such as a vacuum pump. An offset cylinder 46 is interposed in the pair of front leg portions 43 positioned.

  The rotating mechanism 51 has a disc-shaped rotating body 52 that is pivotally supported in the left-right direction on an elevating frame 32 having a substantially L-shaped side surface, and one end of the rotating mechanism 51 at a position off the rotational center of the rotating body 52. The connecting member 55 is fixed, and the reversing cylinder 56 is connected to the cylinder rod at the other end of the connecting member 55. The cylinder rod of the reversing cylinder 56 can advance and retreat in the front-rear direction, and the rear end portion of the reversing cylinder 56 is pivotally supported by a support bracket 57 suspended from the rear end portion of the elevating frame 32. Yes.

  An upper and lower cylinder 62 having a long stroke is connected to the upper part of the front end of the take-out mechanism main body 32 via a short tubular connecting member 61, and the cylinder rod advances and retreats in the vertical direction. A forward cylinder 66 is connected to a lower portion of the vertical cylinder 62 via a connection bracket 65 having an L shape in side view, and the cylinder rod is advanced and retracted in the front-rear direction. As shown in FIG. 1, guide rings 70 and 71 are provided on the left and right sides of the upper and lower cylinders 62 in the connection bracket 65, and extend upward from the take-out mechanism main body 32 into the guide rings 70 and 71. The inserted guide rods 72 and 73 are inserted to guide the raising and lowering of the take-out mechanism main body 32 by the upper and lower cylinders 62. The forward cylinder 66 is fixed to the rear department type frame 33 via a connection bracket 75 having an L shape in side view, whereby the entire bag take-out mechanism is supported by the rear department type frame 33 in a suspended manner. In FIG. 1, 76 and 77 positioned on both the left and right sides of the forward movement cylinder 66 are guide shafts for guiding the vertical movement of the vertical cylinder 62 and the take-out mechanism main body 32.

  That is, the rear suction mechanism 41 of the bag body take-out mechanism 31 is moved downward by the lifting cylinder 62 so that the suction pads 45 of the same height are lowered downward so that the bag body storage portion 11 is close to the mouth of the bag body in a flat state. Adsorbed to the suction pad 45, the rod of the offset cylinder 46 is lifted in this suction state, and only the front suction pad 45 is slightly lifted to introduce air between the sucked bag body and the next bag body. Both bag bodies are in a state in which they are easy to peel off, and thereafter the lifting frame 42 is raised by the lifting cylinder 62 and the posture is changed from downward to forward by the reversing cylinder 57 to raise the bag body forward and upward. Thus, the bag is advanced toward the front suction mechanism 81. The bag body is sucked by the suction pad 45 lowered within the distance between the baffle plates 17 and 18 on both sides, and when the bag body is lifted, the suction pad 45 is positioned outside the portion that is sucked. Since both side portions of the bag body are in sliding contact with the baffle plates 17 and 18, the bag body taken out from the bag body storage portion 11 is mechanically squeezed by the baffle plates 17 and 18, thereby further ensuring the overlap of the bag bodies. Can be prevented. Therefore, even if the next bag body is lifted up in a state where the next bag body is attached to the bag body adsorbed to the suction pad 45 of the rear suction mechanism 41 due to static electricity or the like, both side portions of these bag bodies are obstructed on the left and right sides. The slidable contact portions of the plates 17 and 18 are slidably contacted from both sides, whereby a gap is formed between the overlapping bag bodies, and air enters the gap and the both bag bodies are peeled off. For this reason, the bag body adsorbed by the suction pad 45 of the rear suction mechanism 41 is continuously lifted and taken out while changing the posture as it is, while the next bag body that has been squeezed and separated by the baffle plates 17 and 18 has its own weight. Is dropped and returned to the bag body stacked on the bag body storage portion 11.

  A front department type frame 82 having a height lower than that of the rear department type frame 33 is provided at the front end of the base 2 so as to straddle right and left. A front suction mechanism 81 having a suction pad 84 facing rearward is provided at the center lower portion of the front section type frame 82. That is, the front suction mechanism 81 has a front end of a lateral L-shaped support bracket 83 so as to face the suction pads 45 of the pair of front legs 43 of the rear suction mechanism 41 converted to the forward posture. The support bracket 83 is connected to a cylinder rod 86 of a forward / backward cylinder 85 fixed to the center lower part of the front section type frame 82. Yes. On the upper and lower sides of the cylinder rod 86, guide shafts 87 and 88 extending rearward from the front section type frame 82 are provided. The guide shafts 87 and 88 are inserted into the support bracket 83 to advance and The back and forth movement of the support bracket 83 by the retreat cylinder 85 is guided. That is, the front suction mechanism 81 sucks the front surface of the bag body sucked by the forward suction pad 45 of the rear suction mechanism 41 with the rear receiving pad 84 at the loading position. The suction pad 45 returns to the initial state in which the offset cylinder 46 extends the rod in the forward-facing state, so that the suction pad 45 returns to the state shown in FIG. Become.

  Clamp mechanisms 91 and 92 are provided on the left and right sides of the front suction mechanism 81 to hold the both ends of the bag body sucked so as to be sandwiched between the rear suction mechanism 41 and the front suction mechanism 81. . As shown in FIG. 3, the clamp mechanisms 91 and 92 are T-shaped clamp levers 93 and 94 that hold both ends of the mouth of the bag body, and a slide plate that also functions as a receiving member for the clamp levers 93 and 94. 95, 96 and clamp cylinders 97, 98 for opening and closing the clamp levers 93, 94, and a clamp moving means 120 capable of adjusting the interval between the slide plates 95, 96, and the slide plates 95, 96 And slide guides 101 and 102 for guiding the movement in the left-right direction.

  The slide plates 95 and 96 are flat members having a bent portion at the upper end, the bent portion serves as a receiving portion for the clamp levers 93 and 94, and the lower end portion is clamped via a fixed fitting 103 having an L shape in plan view. It is fixed to the moving means 120. Between these clamp levers 93 and 94, two upper and lower rod-shaped slide guides 101 and 102 are inserted through a guide ring 104, and guide the lateral movement of the clamp levers 93 and 94 by the clamp moving means 120. ing.

  The clamp levers 93 and 94 are T-shaped members in plan view, and the base end portions thereof are pivotally supported on the upper end portions of the slide plates 95 and 96 via a bracket so that the outer pieces 111 are supported. , 112 are connected to the cylinder rods of the clamping cylinders 97, 98 so that the inner pieces 113, 114 can be opened and closed. The front end portions of the inner pieces 113 and 114 hold both end portions of the mouth of the bag body with the grip receiving portions 116 and 117 in which the upper end portions of the slide plates 95 and 96 are bent in an L shape in plan view. It is configured.

  The clamp moving unit 120 includes a drive motor 122 fixed to an L-shaped support bracket 121 that constrains one end of the two slide guides 101 and 102, and a drive connected to the drive shaft of the drive motor 122. A sprocket 123, a driven sprocket 125 pivotally supported by an L-shaped support bracket 124 that constrains the other ends of the slide guides 101 and 102, and a timing belt spanned between the drive sprocket 123 and the driven sprocket 125 126, and the fixing bracket 103 of the slide plates 95 and 96 is fixed to the timing belt 126.

  The lower end portion of the left slide plate 95 is positioned between the bag size detection plates 131 movable in the left-right direction, and an in-situ sensor 132 is provided at a position acting on the left end portion of the bag size detection plates 131. A sizing sensor 133 is provided on the right side of the sizing sensor 133 so as to be movable left and right, and detects the movement of the left slide plate 95. Further, an overrun sensor 134 is provided on the right side of the sizing sensor 133 with an interval. Is provided. That is, the clamp mechanisms 91 and 92 can detect the bag size by the sizing sensor 133 moved according to the size of the bag body, and by adjusting the position of the slide plates 95 and 96 by the clamp moving means 120, The left and right positions of the clamp levers 93 and 94 can be adjusted according to the bag size.

  As shown in FIGS. 1 and 4, the left portion of the rear section type frame 33 is provided with a funnel mechanism 141 having a funnel 140 that can move back and forth between the left and right clamp mechanisms 91 and 92 and can move up and down. It has been. The funnel mechanism 141 is supported on the left side portion of the rear section type frame 33 by a flat support frame 143 extending forward through a support bracket 142 and pivotally supported by the tip of the support frame 143. A funnel 140 and a swing cylinder 145 connected to the pivot shaft 144 and fixed to the lower end of the support frame 143. The swing cylinder 145 can be rotated back and forth between the standby position and the content input position. It has become.

  Further, a cylinder rod 147 of an upper and lower cylinder 146 fixed to the support bracket 142 is connected to a lower portion on the base end side of the support frame 143, and a guide shaft 148 for guiding the vertical movement of the support frame 143 before and after the cylinder rod 147, 149 is fixed and inserted into guide rings 151 and 152 fixed to the support bracket 142. Further, a connecting bracket 155 is connected to the lower part of the upper and lower cylinders 146, and a rotating arm 158 having a receiving tray 157 provided at the distal end is rotated via a swing cylinder 156 fixed to the distal end of the connecting bracket 155. It is provided freely. The tray 157 receives the remaining contents of the bag put into the funnel 140. Further, a sensor 161 is provided at the tip of the connection bracket 155, a detection piece 162 bent in a key shape from the rotating arm 158 faces the sensor 161, and a receiving tray 157 exists at the lower part of the funnel 140. Is supposed to be detected.

  That is, both sides of the bag body sucked so as to be sandwiched between the rear suction mechanism 41 and the front suction mechanism 81 at the loading position are clamped by the clamp mechanisms 91 and 92, and at least the front suction mechanism 81 and the rear suction mechanism 41 are The suction pad of one suction mechanism moves in the direction of separating and opens the mouth of the bag body, the swing cylinder 145 of the funnel mechanism 141 rotates the funnel 140 to advance between the left and right clamp mechanisms 91 and 92, Further, the upper and lower cylinders 146 of the funnel mechanism 141 lower the funnel 140 and insert the lower end outlet into the open mouth of the bag body. In this state, the operator puts the contents into the funnel 140 and packs the bag. It has become. When opening the mouth of the bag body, even if the offset cylinder 46 is operated to retract the suction pad 45, or the cylinder 85 is operated to move the suction pad 84 to the operator side, both suction pads 45 may be moved. , 84 may be moved in opposite directions. Further, when the left and right clamp mechanisms 91 and 92 are slightly moved inward when opening the mouth of the bag body, the mouth can be smoothly opened.

FIG. 5 is a schematic view of the funnel working position and detection means, where (a) is a plan view thereof and (b) is a front view thereof.
As described above, the funnel operation in which the swing cylinder 145 of the funnel mechanism 141 rotates the funnel 140 to advance between the left and right clamp mechanisms 91 and 92 and inserts the funnel 140 into the mouth of the bag body when the contents are inserted. The position is set. As shown in FIG. 5, scanning line detection means 170 is provided slightly above the funnel work position, in which the detection scanning line L runs in the left-right direction. This scanning line detection means 170 is comprised by the photo sensor (PH sensor) which consists of the light emitting element 171 and the light receiving element 172, for example. As described above, a control device is provided inside the base 2, and this control device only controls the operation of the bag body take-out mechanism 31, the rear suction mechanism 41, the front suction mechanism 81, and the like. If the scanning line detection means 170 detects the interruption of the scanning line while the funnel 140 is moving forward, the emergency stop mode in which the movement of the funnel 140 is emergency stopped and the contents are charged are completed based on the detection signal. When the scanning line detecting means 170 detects the interruption of the scanning line when taking out the bag body, it can be switched to the taking-out auxiliary mode for releasing the clamping of the clamping mechanisms 91 and 92 based on the detection signal, Based on the detection signal of the line detection means 170, the operation of the funnel mechanism 141 and the clamp mechanisms 91 and 92 are also controlled.

  FIG. 6 is a block diagram of the configuration of the control system based on the detection signal of the PH sensor. As shown in FIG. 6, the control device 180 includes a CPU 181, a ROM 182, a RAM 183, and the like, and the ROM 182 stores control contents (programs and the like) based on the detection signal of the PH sensor 170.

  Scan line detection means (hereinafter referred to as a PH sensor in the present embodiment) 170 is connected to the input side of the control device 180 via an input interface (I / F) 191, and a detection signal of the PH sensor 170 is input. It has become so. The detection signal of the PH sensor 170 is controlled as an ON signal when the detection scanning line L is interrupted by an operator's hand or the like, and as an OFF signal when the scanning line L is running without being interrupted. It will be input to the device 180.

  The swing cylinder 145 and the upper and lower cylinders 146 of the funnel mechanism 141 are connected to the output side of the control device 180 via an output interface (I / F) 192, and the swing cylinder that operates the funnel 140 with a command signal from the control device 180. 145 and the upper and lower cylinders 146 are output. For example, when the PH sensor 170 detects the interruption of the scanning line L during the movement of the funnel, the ON signal of the PH sensor 170 is input to the control device 180, and the control device 180 is based on the detection signal (ON signal). Then, an operation stop command signal is output to the swing cylinder 145 to stop the movement of the funnel 140 (emergency stop mode). Thereby, since interference with an operator's hand and operation of funnel 140 can be prevented, a worker's safety can be secured.

  Further, clamping cylinders 97 and 98 of the clamping mechanisms 91 and 92 are connected to the output side of the control device 180 via an output interface (I / F) 192, and a command signal of the control device 180 is sent to the clamp lever 93, The power is output to the clamping cylinders 97 and 98 that actuate 94. For example, when the PH sensor 170 detects the interruption of the scanning line L when the contents are put into the bag body and the bag body is taken out, an ON signal of the PH sensor 170 is input to the control device 180, and the control device 180. Automatically releases the clamp levers 93 and 94 of the clamp mechanisms 91 and 92 after the elapse of a predetermined delay time (for example, 2 seconds) based on the detection signal (ON signal) (extraction assist mode). Since the clamp levers 93 and 94 are automatically released in this way, the operator only needs to hold the bag so that the contents do not overflow, and there is no need to separately perform the release operation of the clamp levers 93 and 94.

Next, with reference to the block diagram of FIG. 6 and the flowchart of FIG. 7, the contents of control of the bagging operation by the bagging assist device 1 of the present embodiment will be specifically described.
When the power is turned on, the bag body take-out mechanism 31, the rear suction mechanism 41, and the front suction mechanism 81 are returned to their initial positions, and when the start switch is operated, the control device 180 moves the bag take-out mechanism 31. It is actuated to transfer the contents of the bag body upward from the bag body storage portion 11 to the content input position, where the clamping mechanisms 91 and 92 clamp the left and right side edges of the bag body, and in this state the rear suction mechanism 41 and the front part adsorption | suction mechanism 81 operate | move and open the opening | mouth of the said bag body (bag body taking-out process).

  When it is confirmed that the opening of the bag body is opened at the loading position, the process proceeds to the bag filling process. When the bag filling process is started, the control device 180 first shifts to the emergency stop mode, starts monitoring whether the PH sensor 170 detects the interruption of the scanning line, and moves the funnel 140 by the swing cylinder 145. The position (see FIG. 5) is entered (step 1; hereinafter referred to as “ST1”), and it is confirmed whether or not the funnel 140 exists at the funnel work position (ST2). If the funnel 140 does not exist in the funnel work position, the process returns to the position before ST1. When the PH sensor 170 detects the interruption of the scanning line in a state where the funnel 140 is not in the funnel working position, the operation of the swing cylinder 145 is stopped at that time, and the movement of the funnel 140 is stopped. Therefore, even if the operator accidentally puts his / her hand in the movement range of the funnel 140, the hand is not caught and it is safe.

When the funnel 140 is in the funnel operation position (ST2), the control device 180 cancels the emergency stop mode and shifts to the take-out assist mode.
In this take-out assist mode, the operator can start inserting the contents into the funnel 140 by putting his hand into the funnel work position (ST3). When the worker starts to put in the contents, the scanning line L of the PH sensor 170 is blocked by the operator's hand, so the PH sensor 170 is turned on. That is, when the ON signal is input from the PH sensor 170 to the control device 180, it is confirmed that the PH sensor 170 is ON (that is, the content is being charged) (ST4), and the PH sensor 170 is ON. If not, return to ST3.

  When the PH sensor 170 is turned on (ST4) and the loading of the contents by the worker is completed (ST5), the operator's hand moves away from the funnel work position, so the PH sensor 170 is turned off. That is, when an OFF signal is input from the PH sensor 170 to the control device 180, it is confirmed that the PH sensor 170 is turned off (that is, the closing operation is completed) (ST6), and the PH sensor 170 is not confirmed to be turned off. Return to the front of ST5.

  When the PH sensor 170 is turned off (ST6) and a predetermined delay time (for example, 2 seconds) elapses (ST7), the emergency stop mode is restored, and the funnel 140 is raised by the upper and lower cylinders 146 and rotated by the swing cylinder 156. The moving arm 158 is rotated, and a receiving tray 157 is positioned below the funnel 140 to receive the residue. The funnel 140 returns to the initial position (standby position) together with the receiving tray 157 (ST8). The control device 180 confirms whether or not the return of the funnel 140 is completed (ST9), and if the return is not completed, returns to the previous step ST8. In order to confirm that the funnel 140 has returned to the initial position, a funnel detection sensor may be provided at the initial position, and confirmation may be performed by a signal from this sensor.

  When the return of the funnel 140 has been completed (ST9), the emergency stop mode is canceled, the take-out assist mode is returned, the lamp is turned on, and a message is displayed to the sender that the bag can be taken out. Notification is made (ST10). Then, the lighting of the lamp is confirmed (ST11), and if the lighting of the lamp is not confirmed, the process may return to ST10.

  When the lamp is turned on (ST11), the operator can grasp the mouth of the bag. When the operator grasps the bag mouth (ST12), the scanning line L of the PH sensor 170 is blocked by the operator's hand, so the PH sensor 170 is turned on. That is, when the ON signal is input from the PH sensor 170 to the control device 180, the PH sensor 170 is turned on (insertion of a hand for taking out the bag) (ST13), and the PH sensor 170 is turned on. If not, return to ST12.

  When the PH sensor 170 is turned on (insertion of a hand for removing the bag) (ST13) and a predetermined delay time (for example, 2 seconds) elapses (ST14), the control device 180 causes the clamp mechanism 91, Command signals are output to the 92 clamping cylinders 97, 98, and the clamp levers 93, 94 are automatically opened to automatically release the bag clamp (ST15). Thereby, the operator can take out the bag body that has been packed.

  When the operator takes out the bag, the operator's hand moves away from the funnel operation position, so the PH sensor 170 is turned off. That is, when an OFF signal is input from the PH sensor 170 to the control device 180, it is confirmed that the PH sensor 170 is turned off (removal of the bag) (ST17), and when the PH sensor 170 is not confirmed to be turned off, ST16 back to previous.

  When it is confirmed that the PH sensor 170 is turned off (removal of the bag) (ST17), the bag filling operation is completed, and the same operation can be restarted for the next bag, that is, the start switch is operated. It will return to the possible state.

  As described above, when the PH sensor 170 first detects the interruption of the scanning line after the emergency stop mode is canceled, the control device 180 according to the present embodiment starts the content input operation based on the detection signal. Then, when the PH sensor 170 detects the return of the scanning line, based on the detection signal, it detects the completion of the content input operation, and then detects when the PH sensor 170 detects the interruption of the scanning line. Based on the signal, the clamp mechanisms 91 and 92 are released from the clamp. And when it is detected that the content input operation has been completed, it returns to the emergency stop mode to ensure the safety of the worker, and after the funnel 140 has returned to the initial position, it returns to the take-out assist mode from the emergency stop mode, Assist with work.

  As described above, according to the bag filling auxiliary device of the above-described embodiment, the front surface of the bag body that has been adsorbed by the suction pad 45 of the rear suction mechanism 41 provided in the bag body take-out mechanism 31 and moved forward of the front suction mechanism 81 is used. While sucking by the receiving side suction pad 84, both sides of the bag body are clamped by the clamp levers 93, 94 of the clamp mechanisms 91, 92, and at least one suction mechanism of the front suction mechanism 81 and the rear suction mechanism 41 is separated. The funnel 140 of the funnel mechanism 141 is lowered and inserted into the opened mouth, and the contents are put into the funnel 140 and packed in a bag. In addition to reliably removing the wrapping bags one by one, it is possible to continuously carry out the bagging operation of opening the bag mouth and putting the contents inside.

  Further, a PH sensor 170 in which the detection scanning line L runs in the left-right direction is provided slightly above the funnel working position where the funnel 140 is positioned when the contents are charged, and the control device is based on the detection signal of the PH sensor 170. 180 controls the operation of the funnel mechanism 141 and the clamp mechanisms 91 and 92. Therefore, when the operator's hand enters during the advance movement of the funnel 140 in the emergency stop mode and the PH sensor 170 detects the interruption of the scanning line L, the control device 180 is based on the ON signal of the PH sensor 170. Since the movement of the funnel 140 can be stopped urgently, the interference between the operator's hand and the operation of the funnel 140 can be prevented, and safety can be ensured. In particular, as shown in the embodiment, when the control device 180 is configured to maintain the emergency stop mode while the funnel mechanism 141 is operating, high safety can be obtained. Further, when the funnel 140 is not moved, the emergency stop mode is shifted to the take-out assist mode. In this take-out assist mode, the contents are put into the bag body, and the operator's hand is required to take out the bag body. If the PH sensor 170 detects that the scanning line L is interrupted when the bag body is inserted, the control device 180 determines that the clamp mechanism 91, after the elapse of a predetermined delay time, based on the ON signal of the PH sensor 170. Since the clamp levers 93 and 94 of 92 are automatically opened and the clamp can be automatically released, the operator only needs to hold the bag so that the contents do not overflow, and the clamp levers 93 and 94 are separately released. It is not necessary.

  In addition, a support member that supports the bag body is provided at the content input position, and a weight change detection means (for example, a load cell) that detects the weight change of the bag body is provided on the support member, and the weight change detection means is set in advance. When the detected weight increase is detected, it is detected that the contents have been charged based on the detection signal. After that, when the scanning line detection means detects the interruption of the scanning line, the clamp is performed based on the detection signal. You may comprise so that the clamp of a mechanism may be cancelled | released. If comprised in this way, even if it inserts a hand many times, it will not transfer to the next process until only a predetermined weight is thrown in, and a pouring mistake can be prevented.

It is a top view of a bagging assistance apparatus. It is a right view of a bagging assistance apparatus. It is explanatory drawing of the clamp mechanism which comprises a bagging assistance apparatus, (a) is the top view, (b) is the front view. It is explanatory drawing of the funnel mechanism which comprises a bagging assistance apparatus, (a) is the top view, (b) is the left view. It is the schematic of a funnel working position and a detection means, (a) is the top view, (b) is the front view. It is a block diagram of the structure of the control system based on the detection signal of PH sensor. It is a flowchart of the control content of a bagging operation.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bag filling auxiliary device 2 Base 11 Bag body storage part 31 Bag body taking-out mechanism 41 Rear part adsorption mechanism 81 Front part adsorption mechanism 91, 92 Clamp mechanism 140 Funt 141 Funt mechanism 170 Detection means 171 Light emitting element 172 Light receiving element 180 Control apparatus L Scan line

Claims (5)

A bag body storage unit capable of storing a plurality of packaging bag bodies in a stacked state, and a bag body that is taken out one by one from the bag body storage unit and transferred to a content input position with the mouth of the bag body facing upward A bag assisting device comprising a take-out mechanism,
A clamping mechanism that clamps both the left and right sides of the mouth of the bag body at the loading position;
An adsorption mechanism that opens in the mouth of the bag body by moving in a direction in which at least one of the front adsorption mechanism that adsorbs the front part of the bag body and the rear adsorption mechanism that adsorbs the rear part of the bag body is separated;
A funnel mechanism having a funnel that can move forward and backward between the left and right clamp mechanisms and is movable up and down;
With
Set the funnel working position to insert the funnel into the mouth of the bag body when putting the contents between the left and right clamping mechanisms,
A scanning line detecting means for detecting scanning lines running in the left-right direction is provided on the funnel working position, and a control device for controlling the operation of the funnel mechanism and the clamping mechanism is provided based on the detection signal of the scanning line detecting means. ,
The controller is
When the scanning line detection means detects the interruption of the scanning line during the advance movement of the funnel, based on the detection signal, an emergency stop mode for emergency stop of the funnel movement;
When the loading of the contents is completed and the scanning line detecting means detects the interruption of the scanning line when the bag is taken out, it can be switched to the taking-out assist mode for releasing the clamp of the clamping mechanism based on the detection signal. A bagging auxiliary device characterized by being.   The bagging assist device according to claim 1, wherein the control device maintains an emergency stop mode while the funnel mechanism is operating.   2. The control device according to claim 1, wherein when the scanning line detecting unit detects the interruption of the scanning line in the extraction assist mode, the control device releases the clamp of the clamp mechanism after a predetermined delay time based on the detection signal. The bagging assistance apparatus according to 1 or 2.   When the scanning line detecting means first detects the interruption of the scanning line after the emergency stop mode is canceled, the control device detects the start of the content input operation based on the detection signal, and then scans. When the line detection means detects the return of the scanning line, it detects the end of the content input operation based on the detection signal. Next, when the scanning line detection means detects the interruption of the scanning line, based on the detection signal. 4. The bagging assist device according to any one of claims 1 to 3, wherein the clamp of the clamp mechanism is released. A weight change detecting means for detecting a weight change of the bag body clamped by the clamp mechanism is provided, and when the weight change detecting means detects a preset weight increase, the contents are input based on the detection signal. 5. The clamp according to claim 1, wherein when the scanning line detecting unit detects that the scanning line has been detected and then detects the interruption of the scanning line, the clamp mechanism releases the clamp based on the detection signal. The bagging assistance device described.

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