JP2007099293A - Packing device for game machine and controlling method for packing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packing device which operates a stable packing by a simple configuration, and also to provide a controlling method for the packing device. <P>SOLUTION: The packing device is equipped with: a welding and cutting mechanism 50 that superposes and pinches first and second sheets and welds and cuts the sheets in the width direction; and a moving mechanism 30 that moves a game machine and wraps it with the sheets. In the packing device, the welding and cutting mechanism 50 is constituted of: an upper welding plate 61 and a lower welding plate 62 disposed opposite to each other in their lengthwise directions and used to weld the first and second sheets by pinching them from the outside; and cutting plates 63 and 64 disposed between the upper and lower welding structures. In this packing device, when the upper and lower welding plates pinch the first and second sheets, the cutting plates pinch the first and second sheets from obliquely above and below, and the welding plates melt the overlapped parts of the sheets. Thereafter, the cutting plates engage with each other and cut off the overlapped parts. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a packaging device used when shipping gaming machines, and more particularly to a packaging device for gaming machines that wraps and packages gaming machines with thin film sheets.

  Gaming machines such as pachinko machines, arrange ball machines, and slot machines are required to have strict management of shipping conditions. Pachislot machine manufacturers are required to provide stamps with stamp numbers printed at the final shipment stage from the factory to the amusement facility. Each unit is attached and shipped. For this reason, gaming machines loaded on trucks from gaming machine manufacturers are delivered to gaming facilities in a relatively short period of time after shipment, and are installed and fixed on island facilities of gaming facilities. For these reasons, the packaging of gaming machines is mainly intended to prevent dust during transportation, and generally packaging in the form of a packaging that covers and wraps a thin film-like sheet on the gaming machine after sticking the certificate paper is used. . In recent years, automation and labor saving have been progressing in gaming machine production factories, and a packaging device that automatically performs packaging for shipping is being devised.

  As such a packing apparatus, there has been proposed a packing apparatus that uses a sealing material in which a thin film-like sheet is formed in a cylindrical shape and covers and packs it on a gaming machine. Specifically, the sealing material wound around the packing roll is fed out according to the dimensions of the game machine, and the upper end is welded and cut to seal the upper edge and the left and right side edges. There is known an automatic packing device for making a bag and covering it from above the gaming machine. (For example, refer to Patent Document 1).

Japanese Patent Laid-Open No. 10-1104

  However, the packing sheets used for packaging of gaming machines are thin, but the width and length are large, so handling after unwinding from the packing roll is difficult, and stable operation is ensured with automatic machines. There is a problem that it is difficult. For example, a welding and cutting mechanism that welds and cuts the front and back sheets generally uses a mechanism configuration in which a thermoplastic resin is thermally welded and cut using the property that a thermoplastic resin softens and melts at a relatively low temperature. However, there has been a problem that the quality of the welded and fused parts is easily affected by climate change and material change.

  In other words, the welding and cutting mechanism uses a cutting plate that is heated by a heater to the melting temperature of the resin material by sandwiching the packing sheet with the welding plate that has been heated up to the softening temperature of the resin material, softening the sheets before and after, and press-bonding them. The front and rear sheets are melted and cut (fused out) by sandwiching the packing sheet. Welding plate and fusing plate are temperature controlled for each plate, but with the peculiarity that the packing device is located near the end of the shipping line, changes in ambient temperature due to seasonal changes, cooling effect by wind, etc. Therefore, the temperature of the functional portion (welded portion, cut portion) at the tip of each plate is likely to change, and the temperature change is particularly large in a fusing plate set at a high temperature. From this point, the set temperature of each plate is changed according to the season, and the test operation is performed for a certain period of time prior to shipping work, but the sheet is still caught or torn without being cut well. Troubles may occur, the work is complicated, and there is a problem that the effect of automation and labor saving is not improved.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a packaging apparatus that stably welds and cuts a packaging sheet to improve operational stability and a control method therefor.

  In order to achieve the above object, a packaging device according to the present invention is a packaging device for packaging a gaming machine with a sheet of thermoplastic resin, and a long first sheet is wrapped around the front side of the gaming machine. The first packing roll and the second packing roll on which the long second sheet for covering the rear side of the gaming machine is wound back and forth are rotatably supported, and the first packing roll is drawn out from each packing roll. A roll holding part that disposes the sheet and the second sheet freely, a first sheet that is drawn from the first packing roll and hangs down, and a second sheet that is drawn from the second packing roll and hangs down are overlapped in front and back. A welding cutting mechanism for sandwiching and cutting these sheets in the width direction from the outside, and one side of the gaming machine abutting against the inner surface of the sheet welded and joined by the welding cutting mechanism to make the gaming machine relatively Move down to Moving mechanism for causing wound bonding sheets (e.g., handling robot 30 in the embodiment) configured to include a. The welding cutting mechanism is located on the outer surface side of the first sheet that hangs down and the outer surface side of the second sheet, and is provided facing the front and rear, and the upper and lower weldings that sandwich and weld the first sheet and the second sheet from the outside. A cutting structure (for example, a cutting structure (for example, a welding structure including a pair of upper and lower welding plates in the embodiment) and a welded portion of the first and second sheets provided between the upper and lower welding structures (for example, And a cutting structure comprising the first and second cutting plates in the embodiment. In this packing device, when the upper and lower welding structures sandwich the first and second sheets, the cutting structure sandwiches the first and second sheets diagonally up and down to melt these sheets at the overlapping portion, and then cuts them. The structure is further configured to pull apart and cut the overlapped portions that are interdigitated and melted.

  Note that the upper and lower welding structures described above are an upper first welding member and a lower first welding member (for example, the upper first in the embodiment) that are located on the outer surface side of the first sheet that hangs down and are slidable back and forth. The welding plate 61U and the lower first welding plate 61L), and the upper second welding member and the lower second welding member (for example, the upper part in the embodiment) which are located on the outer surface side of the second sheet and are slidable back and forth. The cutting structure is located between the upper first welding member and the lower first welding member and is slidably provided back and forth so as to be slidable back and forth. A second cutting provided between the cutting member (for example, the first cutting plate 63 in the embodiment) and the upper second welding member and the lower second welding member so as to be slidable back and forth. And an upper welding structure composed of an upper first welding member and an upper second welding member, and a lower first welding member and a lower second welding member. And a lower welding structure sandwiching the first and second sheets, respectively, and welding these sheets up and down, and a first cutting member and a second cutting member sandwiching the first and second sheets diagonally up and down. When these sheets are melted in the overlapping portion, and the first cutting member and the second cutting member are further bitten back and forth to cut the overlapping portion, the upper welding structure and the lower welding structure are It is preferable that the first and second sheets are relatively displaced back and forth with the first and second sheets sandwiched therebetween to assist the cutting of the overlapping portion.

  Further, the slide mechanism that slides the upper first welding member, the lower first welding member, the upper second welding member, the lower second welding member, the first cutting member, and the second cutting member back and forth is the upper first welding member. An upper first cylinder that slides and displaces the member and the first cutting member integrally back and forth, a lower first cylinder that slides the lower first welding member back and forth, and an upper second that slides and displaces the upper second welding member forward and backward A cylinder, a lower second cylinder that integrally slides the second cutting member and the second welding member back and forth, and a cylinder control device (for example, a packing control device in the embodiment) that controls the operation of these cylinders; It is preferable that the cylinder control device controls the welding and cutting operations of the first and second sheets by controlling the operation of each cylinder. As specific means for controlling the operation of the cylinder, for example, pressure setting of the working medium supplied to each cylinder, supply timing, supply speed, change of the set pressure, and combinations thereof are exemplified.

  Moreover, in order to achieve the said objective, the control method of the packing apparatus of this invention covers the 1st packing roll wound with the elongate 1st sheet | seat for covering the front side of a game machine, and the rear surface side of a game machine. Rolls in which the second packaging rolls wound with a long second sheet are arranged in front and back and are rotatably supported, and the first and second sheets drawn out from the respective packaging rolls are arranged so as to be fed out freely. The holding part, the first sheet drawn from the first packing roll and drooping down, and the second sheet drawn from the second packing roll and drooping are overlapped in front and back, and sandwiched from the outside to weld these sheets in the width direction. And a welding cutting mechanism for cutting, and one side surface of the gaming machine is brought into contact with the inner surface of the sheet welded and bonded by the welding cutting mechanism, and the gaming machine is moved downward to wind the bonded sheet. Movement mechanism For example, the handling robot 30) in the embodiment is provided, and the welding and cutting mechanism is provided on the outer surface side of the first sheet to be hung and the outer surface side of the second sheet so as to be opposed to each other in the front-rear direction, An upper and lower welding structure that sandwiches and welds the second sheet from the outside (for example, a welding structure that includes a pair of upper and lower welding plates in the embodiment) and an upper and lower welding structure are provided between the upper and lower welding structures. It is a control method of the packing apparatus of the gaming machine configured with a cutting structure that cuts between the welded parts (for example, a cutting structure formed of the first and second cutting plates in the embodiment). In addition, the control method of the packing apparatus includes a first step of sandwiching the first and second sheets by the upper and lower welding structures and welding these sheets, and the first and second sheets obliquely up and down by the cutting structure. A second step of sandwiching and melting these sheets in the overlapped portion and a third step of further cutting the overlapped portion by biting and melting the cut structure further apart are configured.

  Note that the upper and lower welding structures are located on the outer surface side of the first sheet that hangs down and are provided so as to be slidable back and forth, and the lower first welding member (for example, the upper first in the embodiment). The welding plate 61U and the lower first welding plate 61L), and the upper second welding member and the lower second welding member (for example, the upper part in the embodiment) which are located on the outer surface side of the second sheet and are slidable back and forth. The cutting structure is provided between the upper first welding member and the lower first welding member so as to be slidable back and forth. The first cutting member (for example, the first cutting plate 63 in the embodiment) is located between the upper second welding member and the lower second welding member so as to be slidable back and forth. In the first step, the upper welding including the upper first welding member and the upper second welding member is performed on the packing device including the second cutting member (for example, the second cutting plate 64 in the embodiment). The structure and the lower welding structure composed of the lower first welding member and the lower second welding member sandwich the first and second sheets, respectively, and weld these sheets up and down. In the second step, the first cutting is performed. The member and the second cutting member sandwich the first and second sheets obliquely up and down to melt these sheets at the overlapping portion, and the first cutting member and the second cutting member further bite back and forth in the third step. When cutting the overlapped portion that has been inserted and melted, the upper welded structure and the lower welded structure are configured to be relatively displaced back and forth with the first and second sheets sandwiched therebetween to assist the cutting of the overlapped portion. Preferably .

  The upper first welding member, the lower first welding member, the upper second welding member, the lower second welding member, the first cutting member, and the slide mechanism that slides and displaces the second cutting member back and forth are provided in the upper first welding. An upper first cylinder that slides and displaces the member and the first cutting member integrally back and forth, a lower first cylinder that slides and displaces the lower first welding member back and forth, and an upper first cylinder that slides and displaces the upper second welding member back and forth. 2 cylinders, a lower second cylinder that integrally slides the lower second welding member and the second cutting member back and forth, and a cylinder control device that controls the operation of these cylinders (for example, the packing control device in the embodiment) ) In the first and second steps, the cylinder control device includes an upper first cylinder, a lower first cylinder, and an upper second case. The cylinder and the lower second cylinder are simultaneously operated to perform welding by the upper welding structure and the lower welding structure and melting of the overlapping part by the cutting structure, and in the third step, the cylinder control devices face each other. It is preferable that the first and second sheets are cut by the cutting structure and the cutting assistance is performed by relative displacement of the upper welding structure and the lower welding structure by controlling the operation of. As specific means for controlling the operation of the cylinder, for example, pressure setting, supply timing, supply speed, change of the set pressure of the working medium supplied to the opposing cylinder, a combination thereof, and the like are exemplified.

  In the packing apparatus according to claim 1, a welding and cutting mechanism that sandwiches and overlaps the first sheet and the second sheet in the front-rear direction, and welds and cuts these sheets in the width direction, the first and second sheets are disposed outside. The upper and lower welding structures sandwiched between and welded together, and the cutting structure that cuts between the welded portions of the first and second sheets welded by the upper and lower welding structures, the upper and lower welding structures are the first and second When the second sheet is sandwiched, the cutting structure sandwiches the first and second sheets diagonally up and down to melt these sheets at the overlapping portion, and the cutting structure further bites each other to melt the overlapping portion. Configured to pull apart and cut. That is, in the packaging device of this configuration, the first and second sheets are sandwiched diagonally up and down, rather than simply abutting the cutting plates before and after the temperature is raised to the melting temperature and sandwiching the packaging sheet at the leading end to melt the sheet. The overlapping part is provided to melt the sheet, and the cutting structure is further configured to bite each other and separate and melt the overlapping part. For this reason, the first and second sheets are sufficiently melted at the overlapping portion that is relatively less susceptible to changes in the ambient temperature and the like, and the first and second sheets are reliably cut by being separated. Thereby, the packing apparatus which cut | disconnected the packing sheet stably and improved operation | movement stability can be provided.

  In the packing apparatus according to claim 2, the upper and lower first welding members provided on the outer surface side of the first sheet so that the upper and lower welding structures are slidably displaced back and forth, and the outer surface side of the second sheet The upper and lower second welding members are provided so as to be slidable back and forth, and the cutting structure is located between the upper and lower first welding members and is slidable back and forth. The first cutting member is provided, and the second cutting member is provided between the upper and lower second welding members so as to be slidable forward and backward. The upper welding structure composed of the upper first welding member and the upper second welding member and the lower welding structure composed of the lower first welding member and the lower second welding member sandwich the first and second sheets, respectively. The first cutting member and the second cutting member sandwich the first and second sheets obliquely up and down to melt these sheets at the overlapping portion, and then the first cutting member and the second cutting member When cutting the overlapped portion that is further bitten back and forth by the cutting member to cut the overlapped portion, the upper welded structure and the lower welded structure are relatively displaced back and forth while sandwiching the first and second sheets. Configured to assist. That is, in the packaging device of this configuration, when the overlapping portion where the first cutting member and the second cutting member are melted is cut, the upper and lower welding structures are relatively displaced back and forth while sandwiching the sheet to sandwich the overlapping portion. Move forward and backward. For this reason, the 1st, 2nd sheet | seat fuse | melted in the duplication part is pulled apart so that it may be pulled by the up-and-down welding structure, and it cut | disconnects reliably on the boundary of an duplication part. Thereby, the packaging sheet can be cut more reliably and stably, and a packaging device with further improved operational stability can be provided.

  In the packaging device according to claim 3, the slide mechanism that slides the upper and lower first welding members, the upper and lower second welding members, and the first and second cutting members back and forth includes the upper first welding member and the first cutting. An upper first cylinder that slides and displaces the member, a lower first cylinder that slides and displaces the lower first welding member, an upper second cylinder that slides and displaces the upper second welding member, and a lower second welding member and A lower second cylinder that integrally slides and displaces the two cutting members, and a cylinder control device that controls the operation of these cylinders, and the cylinder control device controls the operation of each cylinder, thereby controlling the first and second cylinders. It is configured to control the welding and cutting operations of the two sheets. That is, in the packaging apparatus of this configuration, the upper first welding member and the first cutting member are integrally driven by the upper first cylinder, and the lower second welding member and the second cutting member are integrally formed by the lower second cylinder. By driving automatically, six driven members are driven by four cylinders to achieve the above function. For this reason, the mechanism structure of the whole packaging apparatus including a slide mechanism can be simplified, and the packaging apparatus which improved operation | movement stability with the simple and low-cost structure can be provided.

  According to a fourth aspect of the present invention, there is provided a control method for a packing apparatus, wherein the first sheet and the second sheet are overlapped in front and back, and the welding and cutting mechanism for welding and cutting these sheets in the width direction includes the first and second sheets. Control method for packing apparatus comprising upper and lower welding structures for sandwiching and welding sheets from the outside, and a cutting structure for cutting between the welded portions of the first and second sheets welded by these upper and lower welding structures A first step in which the first and second sheets are sandwiched by the upper and lower welding structures to weld these sheets, and the first and second sheets are obliquely sandwiched by the cutting structure in the overlapping portion. A second step of melting the sheet, and a third step of separating and cutting the overlapped portion that is further bitten and melted by the cutting structure. That is, in this control method, the overlapping portion is obtained by sandwiching the first and second sheets obliquely up and down in the second step to melt the overlapping portion, and in the third step, the cutting structure is further interdigitated and melted. It is comprised so that it may separate and cut. For this reason, the overlapping portion of the first and second sheets is sufficiently melted in the second step, and the molten overlapping portion is separated in the third step, so that the first and second sheets are reliably cut. Therefore, the control method which cut | disconnected the packing sheet stably and improved the operation | movement stability of the packing apparatus can be provided. Note that the first step and the second step may be performed simultaneously.

  The method for controlling a packing apparatus according to claim 5 includes: upper and lower first welding members whose upper and lower welding structures are positioned on the outer surface side of the first sheet so as to be slidable back and forth; and the second sheet The upper and lower second welding members are provided on the outer surface side of the upper and lower second welding members so as to be slidable back and forth, and the cutting structure is positioned between the upper and lower first welding members and slides back and forth. About the packing apparatus comprised including the 1st cutting member provided so that displacement was possible, and the 2nd cutting member provided between the upper and lower 2nd welding members so that sliding displacement was possible back and forth, In the first step, an upper welding structure made up of an upper first welding member and an upper second welding member and a lower welding structure made up of a lower first welding member and a lower second welding member are bonded to the first and second sheets, respectively. Sandwich and weld these sheets up and down In the second step, the first cutting member and the second cutting member sandwich the first and second sheets obliquely up and down to melt these sheets in the overlapping portion, and in the third step, the first cutting member and the second cutting member When the overlapping part that the two cutting members are further bitten and melted is cut, the upper welding structure and the lower welding structure are relatively displaced back and forth while sandwiching the first and second sheets, and the overlapping part Configured to assist in cutting. That is, in the control method of this configuration, when the overlapping portion melted in the second step is cut in the third step, the upper and lower welding structures are relatively displaced back and forth with the sheet sandwiched therebetween to sandwich the overlapping portion. It is controlled to move forward and backward. For this reason, the overlapping portions of the first and second sheets melted in the second step are pulled apart so as to be pulled by the upper and lower welding structures in the third step, and are reliably cut off at the overlapping portions. Therefore, it is possible to provide a control method in which the cutting of the packing sheet is performed more reliably and stably and the operation stability of the packing device is further improved.

  The control method for the packing device according to claim 6 is characterized in that the upper and lower first welding members, the upper and lower second welding members, and the slide mechanism that slides and displaces the first and second cutting members back and forth are the upper first welding member and An upper first cylinder that slides and displaces the first cutting member integrally, a lower first cylinder that slides and displaces the lower first welding member, an upper second cylinder that slides and displaces the upper second welding member, and a lower second cutting A packing device comprising a lower second cylinder that integrally slides and displaces a member and a lower second welding member, and a cylinder control device that controls the operation of these cylinders. In this process, the cylinder control device operates the upper first cylinder, the lower first cylinder, the upper second cylinder, and the lower second cylinder at the same time so that the upper welding structure and the lower welding structure are operated. In the third step, the first and second sheets are cut and upper welded by the cutting structure by controlling the operation of the cylinders facing each other in the third step. It is comprised so that cutting | disconnection assistance by the relative displacement of a structure and a lower welding structure may be performed. That is, in the control method of this configuration, the four cylinders are simultaneously operated in the first and second steps, and the overlapping portion is melted by the welding structure and the cutting structure, and the front and rear faces in the third step. By controlling the operation of the cylinder, the cutting of the sheet by the further biting operation of the cutting structure and the cutting assistance by the relative displacement of the upper and lower welding structures are performed. For this reason, by controlling the operation of the four cylinders that drive the six driven members, a reliable cutting function can be realized, and a packaging device that has improved operational stability with a simple and low-cost system configuration. A control method can be provided.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the accompanying drawings. FIG. 1 schematically shows a process until a game machine such as a pachinko machine temporarily stored in the product warehouse 10 is loaded onto the truck TR via the shipping line 20, and the flow of the shipping process is first described with reference to this drawing. The outline will be described.

  The pachinko machine PM assembled through the processing and assembling process is loaded on a pallet 12 on which about 15 pachinko machines can be loaded, loaded into the pallet 12 by an automatic loading / unloading device, and stored in the storage shelf of the product warehouse 10. 11 is stored. A shipping port 15 is provided adjacent to the product warehouse 10 and a shipping line 20 is provided. A transport robot 18 is disposed between the exit port 15 and the shipping line 20, and the pachinko machine PM on the pallet led to the exit port 15 by the automatic loading / unloading device is transported to the shipping line 20 by the transport robot 18. Is done.

  The shipping line 20 includes a standby stage 21, a stamp sticking stage 22, a packing stage 23, a shipping label sticking stage 24, and the like. The pachinko machine PM transported to the standby stage 21 by the transport robot 18 is transported on this line. The mechanism 25 sequentially sends the stamp from the standby stage 21 to the stamp pasting stage 22, and the stamp is pasted on the packing stage 23. The shipping label is pasted on the shipping label pasting stage 24 and stopped at the shipping yard. It is loaded onto the truck TR and shipped to the customer.

  In the shipping process generally configured as described above, the automatic packing device 23M is provided in the packing stage 23 near the end of the shipping line, and the pachinko machine PM to which the stamp is pasted in the stamp pasting stage 22 is the packing stage 23. Packaged automatically. 2 to 4 show an automatic packing device. First, the overall configuration of the automatic packing device 23M will be described with reference to these drawings. Here, FIG. 2 is a front view of the automatic packing device 23M, FIG. 3 is a plan view of the automatic packing device 23M, and FIG. 4 is an enlarged front view of the packaging device main body 40 in the automatic packing device. FIG. 5 is a side cross-sectional view of the head assembly as viewed in the direction of arrow V to arrow indicated in FIG. In the description of the packing stage 23, it is referred to as front and rear, right and left and up and down with the posture of the front view shown in FIG. 2, and as shown in FIG. 2, the horizontal direction is the X axis, the vertical direction is the Z axis, The description will be made assuming that the front-rear direction perpendicular to the paper surface is the Y axis.

  The automatic packing device 23M receives the pachinko machine PM carried into the packing stage 23 by the transport mechanism 25 and holds the pachinko machine stopped at the reference position by holding the pachinko machine PM stopped at the reference position. And a packaging device main body 40 for packaging a pachinko machine moved by the handling robot 30 with a resin sheet, and the like, which are integrally assembled to a stage base 27 serving as a base of this stage.

  The introduction mechanism 26 is mainly composed of a roller conveyor 26a having a plurality of rotating rollers (so-called motor rollers) in which a motor is incorporated inside the roller, and the upper surface of the roller conveyor 26a is slightly smaller than the width in the front-rear direction of the pachinko machine PM. A guide plate is attached at a wider interval, abutment protrusion (not shown) that abuts and supports the lower right end of the pachinko machine introduced by the roller and locks the pachinko machine at the reference position, and the pachinko machine An introduction detector 26c for detecting whether or not it is disposed at the reference position is provided.

  The roller conveyor 26a is provided in communication with the transport mechanism 25, and the pachinko machine PM introduced from the transport mechanism 25 to the packing stage 23 is introduced by the rotating rollers while being guided by the front and rear guide plates, and automatically packed. The positioning is stopped at the reference position in the device 23M. The signal from the introduction detector 26c is input to a packing control device (not shown) that controls the operation of the automatic packing device 23M.

  The handling robot 30 includes a frame 31 erected on the stage base 27, an X-axis carriage 32 that is slidably movable in the left-right direction (X-axis direction) above the frame 31, and the X-axis carriage 32. From the Z-axis carriage 33 slidably disposed in the (Z-axis direction), a pair of left and right clamps 35, 35 provided on the Z-axis carriage 33 and sandwiching and locking the outer frame of the pachinko machine PM from the left and right The pachinko machine PM sandwiched and held by the clamp is lifted and moved.

  The X-axis carriage 32 is slidably disposed to the left and right via a slide guide composed of a slide rail and a linear bearing on a carriage base 31b formed to extend left and right at the upper part of the frame, and is parallel to the slide rail. A ball screw provided and a stepping motor that rotationally drives the ball screw are arranged to be slidable in the left-right direction. Then, by controlling the rotation of the stepping motor, the X-axis carriage 32 can be moved left and right, and can be stopped at any position in the X-axis direction.

  The Z-axis carriage 33 is slidably disposed up and down on the X-axis carriage via the same slide guide as described above, while the carriage drive mechanism is configured using a chain. That is, a stepping motor having a driving sprocket fixed to the shaft end is provided at the upper part of the X-axis carriage 32, a driven sprocket is provided at the lower part of the X-axis carriage 32, and the chain is wound between the upper and lower sprockets. The portion is fixed to the Z-axis carriage 33 to constitute a drive mechanism for the Z-axis carriage. Thus, by controlling the rotation of the stepping motor, the Z-axis carriage 33 can be moved up and down and stopped at an arbitrary position in the Z-axis direction.

  The clamp 35 is mainly composed of a clamp arm 35 a pivotally supported in a vertical plane and a cylinder 35 s (hereinafter referred to as “clamp cylinder”) that swings the clamp arm 35 a, and a Z-axis carriage 33. A pair is provided opposite to the left and right sides. The clamp arm 35a is provided with a plurality of locking pins each having a sharp tip so as to bite into an outer frame mainly made of wood, and the air is supplied to the left and right clamp cylinders 35s to be extended. In some cases, the clamp arms 35a swing inward to sandwich the outer frame from the left and right, and a plurality of locking pins bite into the outer frame so that the pachinko machine PM can be lifted and supported.

  The operation of the handling robot 30 is controlled by a packing control device that controls the operation of the automatic packing device 23M, and the opening / closing operation of the clamp 35 is controlled by controlling the supply of air to the clamp cylinder 35s. By controlling the rotation of the stepping motor, the movement of the X-axis carriage 32 and the Z-axis carriage 33 is controlled, and the movement of the pachinko machine held by the clamp 35 with respect to the packaging apparatus body 40 is controlled. The handling robot 30 is always placed at a standby position in which the clamp 35 is somewhat above the pachinko machine at the reference position, and waits with both the left and right clamp arms open.

  When viewed from the overall arrangement configuration, the packaging device main body 40 includes a front mechanism portion provided with a first sheet supply mechanism that covers the front side of the pachinko machine PM, and a second sheet that covers the rear side of the pachinko machine. It consists of a rear mechanism part provided with a supply mechanism, and basically these front and rear mechanism parts are symmetric with respect to the movement plane (XZ plane) of the pachinko machine PM moved by the handling robot 30. It is configured.

  When viewed from the mechanism configuration, the packaging device main body 40 has a first packing roll 41R wound with a first sheet 41 for covering the front side of the pachinko machine and a second sheet 42 for covering the rear side of the pachinko machine. From the first packing roll, a roll holding portion 43 that supports the second packing roll 42R that is placed side by side and supports the first packing roll 42R so as to be rotatable, and the first sheet and the second sheet drawn out from each packing roll can be fed out. A welding and cutting mechanism 50 for laminating the first sheet 41 drawn down and the second sheet 42 drawn down from the second packing roll in front and back and sandwiching them from the outside to weld and cut them in the width direction. And a front and rear mechanism frame 47 erected on the stage base 27, including a side welding mechanism 70 that sandwiches the first and second sheets and welds these sheets in the longitudinal direction. It is provided.

  The roll holding portion 43 is positioned on each outer side of the front and rear mechanism frames 47 and is provided at the upper and lower intermediate portions, and rotatably supports the packing rolls 41R and 42R and the upper portion of the mechanism frame 47. Each is composed of two guide rollers 45 provided freely. The roll holder 44 is configured to pass through and support the core of each packing roll, and to generate a certain amount of friction so that the supported packing roll does not idle, and the sheets 41 and 42 pulled out from each packing roll. Are guided to the upper center by the guide rollers 45 and suspended in front of the welding and cutting mechanism 50, and are fed out according to the pulling force acting on the front end side of the sheet.

  The first sheet 41 and the second sheet 42 are thermoplastic resin sheets. For example, an antistatic agent is kneaded with a thermoplastic resin material such as polyethylene (PE), polypropylene (PP), or vinyl chloride (PVC). Then, it is processed and formed into a thin film-like sheet and supplied as a packing roll wound up by a predetermined length. The first sheet 41 and the second sheet 42 can be a common sheet, for example, a transparent material is used for the first sheet 41 on the front side of the pachinko machine, and the second sheet 42 on the rear side is translucent or opaque. It is possible to use any other material, use a conductive material for the second sheet 42, or use an appropriate sheet material according to other purposes.

  The welding cutting mechanism 50 is provided on the outer surface side of the first sheet 41 and the second sheet 42 that are guided by the guide rollers 45 and 45 and is opposed to the front and rear mechanism frames. A head assembly provided with a structure for welding and cutting the second sheet and a drive mechanism for driving each head assembly in the front-rear direction are mainly configured.

  The front and rear head assemblies have a top and bottom five-stage plate structure that extends in the left-right direction (the direction perpendicular to the paper surface in FIG. 5), and the plates are arranged in parallel at predetermined intervals in the top and bottom. Each of these five-stage plates is divided into upper and lower head assemblies, and in the front mechanism frame, the first to third stage plates 65U, 61U, 63 are upper upper first heads. Fourth and fifth stage plates 61L and 65L are provided on the lower first head assembly 51L on the lower side of the assembly 51U. On the other hand, in the rear mechanism frame, the first and second stage plates 66U and 62U are provided on the upper upper second head assembly 52U, and the third to fifth stage plates 64, 62L and 66L are provided on the lower lower part. The second head assembly 52L is provided.

  This five-stage plate configuration is functionally configured by the first and fifth stage sheet pressing structures that hold the first sheet 41 and the second sheet 42 in a state where they are overlapped in the front-rear direction. The first sheet 41 is provided between the second and fourth stage welding structures that sandwich and weld the first sheet 41 and the second sheet 42 stacked by the sheet pressing structure from the outside, and the upper and lower welding structures. 41 and a third-stage cutting structure that cuts between the welded portions of the second sheet 42.

  That is, the sheet pressing structure is provided in the upper first pressing plate 65U provided in the upper first head assembly 51U, the upper second pressing plate 66U provided in the upper second head assembly 52U, and the lower first head assembly 51L. The lower first presser plate 65L and the lower second presser plate 66L provided in the lower second assembly 52L, and the upper first presser plate 65U and the upper second presser plate 66U are paired to form a first stage. The lower first pressing plate 65L and the lower second pressing plate 66L constitute a pair to form a fifth level sheet pressing structure.

  The holding plates 65U, 65L, 66U, and 66L are configured by welding a round bar having a diameter of about 5 to 10 mm to the end edge surface of a flat plate. For example, the pressing plates 65U, 65L, 66U, and 66L are configured by using SS and stainless steel plates and bars. Is done. In addition, it is possible to cover the first bar 41 and the second sheet 42 that are sandwiched between the first and second sheets 41 and 42 with a resin tube or rubber packing attached to the round bar at the tip of the pressing plate. .

  The welding structure includes an upper first welding plate 61U provided in the upper first head assembly 51U, an upper second welding plate 62U provided in the upper second head assembly 52U, and a lower first provided in the lower first head assembly 51L. 1 welding plate 61L and lower 2nd welding plate 62L provided in lower 2nd assembly 52L, upper 1st welding plate 61U and upper 2nd welding plate 62U are paired, and the 2nd stage upper welding The lower first welding plate 61L and the lower second welding plate 62L constitute a pair to form a fourth stage lower welding structure.

  In the present embodiment, a configuration example in which heaters 67 for welding heating are disposed on the upper and lower second head assembly sides is shown, and the upper second welding plate 62U and the lower part are arranged so that the welding line width is about 3 to 5 mm. The end surface of the second welding plate 62L is chamfered vertically to form an elongated welding heating surface, while the upper first welding plate 61U and the lower first welding plate 61L are welded to have a width of about 5 to 8 mm by processing the end surfaces to be flat. A surface is formed, and the first sheet 41 and the second sheet 42 sandwiched between the welding heating surface abutting against the welding receiving surface are heated to soften the sheet and press-weld under pressure.

  The upper and lower second welding plates 62U and 62L are formed by, for example, cutting end surfaces of a copper alloy plate such as free-cutting brass or phosphor bronze having a predetermined thickness to form a welding heating surface, and adhering molten resin to the tip portion. It is formed by applying a fluororesin coating for prevention, and is configured by attaching a planar heater such as a silicon rubber heater to the lower surface of the upper second welding plate 62U and the upper surface of the lower second welding plate 62L. The upper and lower first welding plates 61U and 61L are configured, for example, by cutting the end surface of an aluminum alloy plate having a predetermined thickness to form a welding receiving surface and coating the tip portion with the same fluororesin. Note that the heater 67 for welding heating may be provided on the upper and lower first head assembly sides (upper and lower first welding plates 61U and 61L), or may be provided on all four welding plates.

  The cutting structure includes a first cutting plate 63 provided in the upper first head assembly 51U and a second cutting plate 64 provided in the lower second head assembly 52L, which are paired in the third stage. The cutting structure is formed. As shown in FIG. 5, the heights of the first cutting plate 63 and the second cutting plate 64 are slightly offset up and down, and the front end of each plate is the lower end corner of the first cutting plate 63. Further, the upper corners of the second cutting plate 64 are chamfered in a tapered shape so that the first cutting plate 63 and the second cutting plate 64 can smoothly mesh with each other while sandwiching the first and second sheets 41 and 42. ing.

  In the present embodiment, a configuration example in which a heater 68 for cutting and heating is disposed on the upper surface of the first cutting plate 63 is shown, and the same processing is performed using the same plate material as the second welding plates 62U and 62L described above. A sheet heater such as a silicon rubber heater is attached. The second cutting plate 64 is similarly configured using the same plate material as the first welding plates 61U and 61L. The heater 68 for cutting and heating may be provided on the second cutting plate 64 side, or may be provided on both the first cutting plate 63 and the second cutting plate 64.

  Each heating temperature of the heater 67 for welding heating and the heater 68 for cutting heating is set according to the material of the resin sheet used as the first sheet and the second sheet. In the heater 67 for welding heating, the resin sheet is It is controlled to a temperature suitable for softening and welding (for example, about 150 ° C.), and the cutting heater 68 is set to a temperature suitable for melting and cutting the resin sheet higher than this (for example, about 200 ° C.). Controlled.

  On the other hand, the drive mechanism for driving the upper and lower first head assemblies 51U and 51L in the front-rear direction has a two-stage configuration corresponding to each head assembly, and includes an upper first head assembly 51U and a lower first head assembly. 51L is attached to the front mechanism frame 47 through a pair of left and right linear motion guides 57, 57 each consisting of a slide shaft 57a and a linear bush 57b so as to be slidable in the front-rear direction. The upper first cylinder 55U and the lower first cylinder 55L provided in the middle of each of these are independently slidable back and forth.

  The driving mechanism for driving the upper and lower second head assemblies 52U and 52L in the front-rear direction has a two-stage configuration corresponding to each head assembly, similar to the driving mechanism for the first head assembly. The assembly 52U and the lower second head assembly 52L are attached to the rear mechanism frame 47 through a pair of left and right linear guides 57 each consisting of a slide shaft 57a and a linear bush 57b so as to be slidable in the front-rear direction. The upper second cylinder and the lower second cylinder (56U, 56L, both of which are not shown in detail) provided in the middle of the linear motion guides 57, 57 are independently slidable back and forth.

  Here, in the upper first head assembly 51U in which the first-stage to third-stage plates 65U, 61U, 63 are disposed, the second-stage upper first welding plate 61U and the third-stage first cut. The plate 63 is connected to the upper connection bracket 53U. The tip of the rod of the upper first cylinder 55U is fixed to the center of the upper connection bracket 53U, and the tip of the slide shaft 57a of the linear guide 57 (the tip fixing part 58 on the free end side) is spaced a predetermined distance from side to side. ) Is fixed, and when the upper first cylinder 55U is expanded and contracted, the upper first welding plate 61U, the first cutting plate 63, and the left and right slide shafts 57a are integrally slid back and forth. It is configured.

  The first upper holding plate 65U of the first stage is supported by the slide shaft 57a through a linear bush 57c so as to be slidably displaceable, and a spring column installed in the upper first holding plate 65U and fixing the tip of the slide shaft. It is connected to the upper connecting bracket 53U via a coil spring 59 stretched between spring struts implanted in the portion 58. Therefore, when the upper first cylinder 55U is expanded and contracted, the upper first welding plate 61U, the first cutting plate 63 and the left and right slide shafts 57a connected by the upper connection bracket 53U are directly slid back and forth, The upper first presser plate 65U to which the driving force is transmitted via the coil spring 59 is slid in the same direction, whereby the upper first head assembly composed of the first to third plates 65U, 61U, 63. 51U is integrally slid back and forth.

  The lower second head assembly 52L on which the third to fifth plates 64, 62L, and 65L are arranged is configured in the same manner as the upper first head assembly 51U, and the second cutting plate 64 of the third step. And the lower second welding plate 62L of the fourth stage are connected by a lower connection bracket 53L. A rod tip of the lower second cylinder 56L and tips of the left and right slide shafts 57a (free end tip fixing portion 58) are fixed to the lower connection bracket 53L, and the lower second cylinder 56L is extended and contracted. The second cutting plate 64, the lower second welding plate 62L, and the left and right slide shafts 57a are integrally slid forward and backward.

  The lower second pressing plate 66L of the fifth stage is supported by the slide shaft 57a through the linear bush 57c so as to be slidably displaceable, and a spring support post implanted in the lower second pressing plate 66L, and a tip fixing portion of the slide shaft 58 is connected to the lower connection bracket 53L via a coil spring 59 stretched between the spring struts implanted in 58. Therefore, when the lower second cylinder 56L is expanded and contracted, the second cutting plate 64, the lower second welding plate 62L, and the left and right slide shafts 57a connected by the lower connecting bracket 53L are directly slid back and forth. The lower presser plate 65L, to which the driving force is transmitted via the coil spring 59, is slid in the same direction, whereby the lower second head assembly 52L composed of the third to fifth plates 64, 62L, 65L. Are integrally slid back and forth.

  In the lower first head assembly 51L provided with the lower first welding plate 61L and the lower first pressing plate 65L, an L-shaped bracket (not shown) is provided at the center of the lower first welding plate 61L. The tip of the rod of the lower first cylinder 55L is fixed, and the tip of the slide shaft 57a of the linear guide 57 (the tip fixing part 58 on the free end side) is fixed at a predetermined interval from side to side. The lower first presser plate 65L is slidably supported on the slide shaft 57a via the linear bush 57c, and is installed in the spring support post planted in the lower first presser plate 65L and the tip fixing portion 58 of the slide shaft. The lower first welding plate 61L is connected via a coil spring 59 stretched between the spring struts.

  For this reason, when the lower first cylinder 55L is extended and contracted, the lower first welding plate 61L and the left and right slide shafts 57a are directly slid back and forth, and the lower first pressing member to which the driving force is transmitted via the coil spring 59 is provided. The plate 65L is slid in the same direction, and the lower first head assembly 51L composed of the lower first welding plate 61L and the lower first holding plate 65L is integrally slid back and forth.

  The upper second head assembly 52U provided with the upper second presser plate 66U and the upper second welding plate 62U is also configured in the same manner as the lower first head assembly 51L, and has an L at the center of the upper second welding plate 62U. A rod tip portion of the upper second cylinder 56U is fixed via a bracket having an angular shape (not shown), and a tip fixing portion 58 of the slide shaft 57a is fixed at a predetermined interval on the left and right. The upper second presser plate 66U is slidably supported on the slide shaft 57a via the linear bush 57c, and is installed in the spring support post installed in the upper second presser plate 66U and the tip fixing portion 58 of the slide shaft. It is connected to the upper second welding plate 62U through a coil spring 59 stretched between the spring struts.

  For this reason, when the upper second cylinder 56U is expanded and contracted, the upper second welding plate 62U and the left and right slide shafts 57a are directly slid back and forth, and the second pressing plate to which the driving force is transmitted via the coil spring 59. 66U is slid in the same direction, and the upper second head assembly 52U composed of the upper second pressing plate 66U and the upper second welding plate 62U is integrally slid back and forth.

  The welding and cutting mechanism 50 is set so that the upper and lower plates of the upper and lower stages overlap on the same line when viewed from the front, and when the opposing head assemblies are projected from the front and rear mechanism frames 47 toward the center, The first and second sheets are stacked by the first-stage and fifth-stage sheet pressing structures and the first sheet 41 and the second sheet 42 are overlapped and sandwiched by the second-stage and fourth-stage welding structures. And the first and second sheets are cut between the upper and lower welding lines by the third-stage cutting structure.

  The operation of the welding cutting mechanism 50 is controlled by a packing control device (not shown in detail). The packing control device operates the upper first cylinder 55U, the lower first cylinder 55L, the upper second cylinder 56U, and the lower second cylinder 56L. By controlling, the welding and cutting operations of the first and second sheets are controlled. 6 (a) (b) (c) and FIG. 7 (a) (b) show the first welding and cutting process of the first and second sheets by the welding cutting mechanism 50 step by step. The operation control of the welding cutting mechanism 50 will be described with reference to these drawings.

  First, as shown in FIG. 6 (a), the first sheet 41 fed out from the first packing roll 41R and the second roll 42 fed out from the second packing roll are moved up and down through the guide rollers 45 respectively. It hangs down in front of the head assemblies 51U and 51L and in front of the second head assemblies 52U and 52L. When the welding and cutting control is started in the packing control device, the packing control device supplies air (compressed air) to the bottom side ports of the upper and lower first cylinders 55U and 55L and the second cylinders 56U and 56L. The two head assemblies 51U, 51L, 52U, 52L are simultaneously projected toward the center.

  When the four front and rear head assemblies are simultaneously driven and project to the center, first, the front and rear upper first and second pressing plates 65U and 66U and the lower first and second pressing plates 65L and 66L are paired. It abuts at the center of the front and rear mechanism frames. At this time, the first sheet 41 and the second sheet 42 are guided by the front edge portions of the upper pressing plates 65U and 66U and guided to the center while being slightly wound up, and paired with the upper pressing plates 65U and 66U and the lower pressing plates. It is sandwiched between the plates 65L and 66L and fixed in a state where it is overlapped in the front-rear direction (FIG. 6 (a) → (b)).

  Here, the cylinder rod tips of the upper first cylinder 55U and the lower second cylinder 56L are fixed to the upper and lower connecting brackets 53U and 53L, respectively, and the cylinder rod tips of the lower first cylinder 55L and the upper second cylinder 56U are respectively The front and rear holding plates 65U, 66U, 65L, 66L are all connected to the above-described members via coil springs 59, which are fixed to the welding plates 61L, 62U. The spring force (drag) generated by the coil spring 59 is set to be smaller than the thrust generated by each cylinder within the expansion / contraction range of the coil spring. For this reason, the cylinders 55U, 55L, 56U, and 56L are extended even after the upper and lower pressing plates contact each other, and the upper and lower first and second upper and lower welds are extended while the coil springs 59, 59,. The plates 61U and 62U, the lower first and second welding plates 61L and 62L, and the first and second cutting plates 63 and 64 are projected to the center, respectively.

  When the extension operation of each cylinder is continued, the upper and lower first and second welding plates 61U and 62U and the lower first and second welding plates 61L and 62L that are paired with each other come into contact with each other. The front and rear first and second cutting plates 63 and 64 are engaged with overlapping portions so that they fit together. At this time, the overlapped first and second sheets 41 and 42 are sandwiched between the upper first welding plate 61U and the upper second welding plate 62U, and the lower first welding plate 61L and the lower second welding plate 62L, respectively. The first and second sheets are softened and welded under pressure on the welding heating surface. Further, in the middle of the upper and lower welding lines, the first cutting plate 63 and the second cutting plate 64 are sandwiched and heated, and the first and second sheets are melted at the overlapping portion.

Here, in the packing device of the present embodiment, the pressure of the compressed air supplied to the upper first cylinder 55U (hereinafter referred to as air pressure) is set higher than the air pressure supplied to the upper second cylinder 56U, and the lower first The air pressure supplied to the second cylinder 56L is set higher than the air pressure supplied to the lower first cylinder 55L. For example, the air pressure supplied to the upper first cylinder 55U and the lower second cylinder 56L is 0.6 MPa (≈6 kg / cm ² ), and the air pressure supplied to the lower first cylinder 55L and the upper second cylinder 56U is 0.4 MPa (≈ It is set to about 4 kg / cm ² ). For this reason, all the cylinders simultaneously extend until the welding plates that are paired in the front and rear contact each other and the cylinder internal pressure of each cylinder rises, as shown in FIGS. 6 (a) to 6 (c). The first head assemblies 51U and 51L and the second head assemblies 51U and 52L sandwich the first sheet 41 and the second sheet 42 at the center.

  On the other hand, when the welding plates (61U and 62U, 61L and 62L) which are paired in the front and rear contact each other and the cylinder rod free extension operation is suppressed, the cylinder internal pressure of each cylinder increases, and the front and rear cylinders A difference corresponding to the pressure difference occurs in the generated thrust. For this reason, the upper first cylinder 55U having a relatively high air pressure pushes the upper second cylinder 56U, and the upper first head assembly 51U and the upper second head assembly 52U are rearward (rightward in FIGS. 6 and 7). The lower second cylinder 56L pushes in the lower first cylinder 55L, and the lower second head assembly 56L and the lower first head assembly 55L are moved forward (leftward in FIGS. 6 and 7) (FIG. 6). (c) → FIG. 7 (a)).

  For this reason, the first cutting plate 63 and the second cutting plate 64, which are in a diagonally upper and lower positional relationship, further cut the overlapping portion that has been engaged and melted, and the first and second sheets above this. The upper pressing plates 65U and 66U and the welding plates 61U and 62U in a state of sandwiching the first and second sheets, and the lower pressing plates 65L and 66L and the welding plates 61L and 62L in the state of sandwiching the first and second sheets in the lower side The second sheets 41 and 42 are relatively displaced back and forth with the second sheets 41 and 42 sandwiched therebetween, and moved so as to be separated from each other with the melted overlapping portion as a boundary to assist cutting. Thereby, the 1st, 2nd sheet | seats 41 and 42 are cut | disconnected reliably by making an overlap part into a boundary.

  The packing control apparatus determines that the cylinder internal pressures of the upper first cylinder 55U and the lower second cylinder 56L are increased after a predetermined time has elapsed since the start of air supply to the upper and lower first cylinders 55U, 55L and the second cylinders 56U, 56L. After the pressure rises to a predetermined pressure, the air supply to the bottom side port of each cylinder is stopped, and this time, air is supplied to the rod side port of each cylinder to reduce the cylinder rods of all cylinders in the retracting direction (FIG. 7). (a) → (b)). As a result, the upper and lower first head assemblies 51U and 51L are retracted forward, and the second head assemblies 52U and 52L are retracted rearward and retracted into the front and rear mechanism frames, respectively. The first sheet 41 and the second sheet 42 are cut between two upper and lower welding lines, and the welding of the first and second sheets is completed below (only the welded material in the first stage becomes an end material. ), A welding wire on the lower surface side for packaging the pachinko machine PM is formed above.

  Accordingly, in the subsequent packing operation of the pachinko machine PM, as shown in FIGS. 8A and 8B, (a) the lower surface of the pachinko machine PM is brought into contact with the inner surface of the welded sheet and moved downward. Accordingly, the sheets 41 and 42 are fed out from the first and second packing rolls, and (b) the upper and lower first and second head assemblies 51U, 51L, 52U and 52L By welding and cutting the first sheet 41 and the second sheet 42, the pachinko machine PM is heat-sealed at both the upper part and the lower part, and a welding line for wrapping the next pachinko machine is formed above the cutting line. (See also FIG. 7 (b)). That is, according to the welding and cutting mechanism 50, the operation control for projecting the front and rear head assemblies once causes the welding on the upper surface side of the pachinko machine PM to be packaged and the lower surface side of the pachinko machine to be packaged next. Welding is performed in one step at the same time.

  On the other hand, the side welding mechanism 70 is located below the welding cutting mechanism 50 and is provided in a pair of left and right mechanism frames 47. The left and right first head assemblies 71, 71, the left and right second head assemblies 72, 72 provided on the rear mechanism frame 47 facing the first head assembly, and a drive mechanism for driving each head assembly in the front-rear direction.

  Each of the first and second head assemblies 71 and 72 has a left and right three-stage plate configuration extending in the vertical direction as shown in FIG. They are arranged in parallel on the left and right with a predetermined interval. The three-stage plate configuration is functionally configured to hold the first sheet 41 and the second sheet 42 in a state where the first sheet 41 and the second sheet 42 are overlapped in the front-rear direction (first and third stages), The first sheet 41 and the second sheet 42 overlapped by these sheet pressing structures are sandwiched from the outside to be welded together (second stage).

  The sheet pressing structure includes left and right first pressing plates 85L and 85R provided on the first head assembly 71 and left and right second pressing plates 86L and 86R provided on the second head assembly 72. The pressing plates are paired to form a sheet pressing structure. Each holding plate is formed by welding a round bar having a diameter of about 5 to 10 mm to the front edge surface of a flat plate, and the left and right holding plates (85L and 85R, 86L and 86R) are spacers 73 at the upper and lower ends. And are arranged in parallel at a predetermined interval on the left and right. The holding plates 85L, 85R, 86L, and 86R are configured using SS materials and stainless alloy plate materials and rod materials.

  The welding structure includes a first welding plate 81 provided on the first head assembly 71 and a second welding plate 82 provided on the second head assembly 72. These welding plates 81 and 82 are paired. A welded structure is formed. In the present embodiment, a configuration example is shown in which a heater 87 for welding heating is disposed on the second head assembly 72 side, and the end surface of the second welding plate 82 is moved left and right so that the welding line width is about 3 to 5 mm. While the first welding plate 81 is chamfered to form an elongated welding heating surface, the end surface of the first welding plate 81 is flattened to form a welding receiving surface having a width of about 5 to 8 mm, and the welding heating surface is abutted against the welding receiving surface. The first sheet 41 and the second sheet 42 are sandwiched between the two, and the sheet is softened and press-welded.

  For example, the second welding plate 82 cuts the end face of a copper alloy plate having a predetermined thickness such as free-cutting brass or phosphor bronze to form a welding heating surface, and prevents adhesion of the molten resin to the tip portion. It is formed by applying a fluororesin coating, and is configured by attaching a planar heater such as a silicon rubber heater to the side surface. In addition, the first welding plate 81 is configured by, for example, cutting an end surface of an aluminum alloy plate having a predetermined thickness to form a welding receiving surface, and coating the tip portion with the same fluororesin. The temperature of the heater 87 for welding heating is controlled to a temperature suitable for softening and welding the resin sheet (for example, about 150 ° C.), similarly to the heater 67 for welding heating described above. The heater 87 may be provided on the first head assembly side (first welding plate 81), or may be provided on both the first and second welding plates.

  Drive mechanisms for driving the first and second head assemblies 71 and 72 in the front-rear direction are provided on the left and right sides of the front and rear mechanism frames 47 corresponding to the respective head assemblies, and each includes a slide shaft 77a and a linear bush 77b. A pair of upper and lower linear motion guides 77, 77 are attached to the mechanism frame 47 so as to be slidable in the longitudinal direction. A telescopic cylinder is provided between the upper and lower linear motion guides 77, 77. A first cylinder (75, detailed illustration is omitted) for driving the first head assembly 71 and a second cylinder for driving the second head assembly 72 are provided. The two cylinders 76 are provided so that each head assembly can be slid back and forth independently.

  Here, in the first head assembly 71, the rod tip portion of the first cylinder 75 is fixed to the first welding plate 81 via an L-shaped bracket, and the slide shaft of the linear motion guide 77 is vertically moved. The distal end portion 77a (the distal end fixing portion 78 on the free end side) is fixed. The left and right first pressing plates 85L and 85R connected by spacers at the upper and lower ends are supported by the slide shaft 77a through the linear bush 77c so as to be slidably displaceable. The first welding plate 81 is connected via a coil spring 79 that is stretched between a spring support post implanted in the tip fixing portion 78 of the slide shaft.

  For this reason, when the first cylinder 75 is expanded and contracted, the first welding plate 81 and the upper and lower slide shafts 77a are directly slid back and forth, and the left and right first pressing plates to which the driving force is transmitted via the coil springs 79. 85L and 85R are slid in the same direction, and the first head assembly 71 composed of the first welding plate 81 and the first pressing plates 85L and 85R is slid in the front and back integrally.

  The second head assembly 72 is configured symmetrically with the first head assembly 71 in the front-rear direction, and the rod tip of the second cylinder 76 is fixed to the second welding plate 82 via an L-shaped bracket, A tip fixing portion 78 of the slide shaft 77a is fixed above and below. The left and right second pressing plates 86L and 86R connected by spacers at the upper and lower end portions are slidably supported by the slide shaft 77a via the linear bush 77c, and are fixed to the linear bush 77c. It is connected to the second welding plate 82 via a coil spring 79 stretched between a spring support post implanted in the tip fixing portion 78 of the slide shaft.

  For this reason, when the second cylinder 76 is expanded and contracted, the second welding plate 82 and the upper and lower slide shafts 77a are directly slid back and forth, and the left and right second pressing plates to which the driving force is transmitted via the coil spring 79 86L and 86R are slid in the same direction, and the second head assembly 72 composed of the second welding plate 82 and the second pressing plates 86L and 86R is slid back and forth integrally.

  The side welding mechanism 70 is set so that the three-stage plates of the front and rear head assemblies 71 and 72 overlap on the same line when viewed from the front, and the front and rear head assemblies 71 and 72 are arranged from the mechanism frame 47 to the center. When the first pressing plate 85L and 85R and the second pressing plate 86L and 86R are overlaid and fixed, the first sheet 41 and the second sheet 42 are overlapped and fixed. The first sheet 41 and the second sheet 42 are sandwiched and welded with the two welding plates 82. The left and right side welding mechanisms 70 are respectively attached to the mechanism frame 47 so that the left and right positions can be adjusted. It is configured so that it can be adjusted and fixed.

  The operation of the side welding mechanism 70 is also controlled by the packing control device, and the packing control device controls the operations of the first and second cylinders 75 and 75 and the second cylinders 76 and 76 in the front, rear, left and right directions to thereby control the first and second seats. Controls welding operation. The operation of the side welding mechanism 70 is similar to the operation of the welding cutting mechanism 50. Hereinafter, the operation control of the side welding mechanism 70 will be described with reference to FIG.

  The first sheet 41 fed out from the first packing roll 41R and the second roll 42 fed out from the second packing roll are suspended in front of the left and right first head assemblies 71 and 71 and in front of the second head assemblies 72 and 72, respectively. When the welding and cutting control is started, the packing control device supplies the air to each cylinder of the welding and cutting mechanism 50 described above, and the bottom side ports of the left and right first cylinders 75 and 75 and the second cylinders 76 and 76. Air is supplied, and the front and rear head assemblies 71, 71, 72, 72 are simultaneously projected toward the center.

  When the four head assemblies are driven simultaneously and project to the center, the front and rear head assemblies 71 and 72 abut at the center of the front and rear mechanism frames, respectively, and the paired right press plates 85R and 86R and the left The first sheet 41 and the second sheet 42 are fixed in a state where they are sandwiched between the pressing plates 85L and 86L and overlapped with each other.

  As described above, the rod tip portions of the first cylinder 75 and the second cylinder 76 are fixed to the first welding plate 81 and the second welding plate 82, respectively. 86L and 86R are connected to each welding plate via a coil spring 79. The spring force generated by the coil spring 79 is set smaller than the thrust generated by each cylinder within the expansion / contraction range of the coil spring. Therefore, the cylinders 75, 75, 76, 76 are extended even after the left and right pressing plates are in contact with each other, and the front first welding plates 81, 81 are extended while the coil springs 59, 59,. And the rear second welding plates 82 and 82 are respectively projected to the center (see FIG. 6C).

When the extension operation of each cylinder is continued, the paired front first welding plate 81 and rear second welding plate 82 come into contact with each other and engage with each other. At this time, the first and second sheets 41 and 42 overlapped by the left and right pressing plates are sandwiched and heated between the first welding plate 81 and the second welding plate 82, and the first and second sheets are heated on the welding heating surface. The sheet is softened and pressure welded. In the side welding mechanism 70, the pressure (air pressure) of the compressed air supplied to the four cylinders 75, 75, 76, 76 is all set to the same pressure (for example, the four air pressures are set to 0.4 MPa ( ≒ 4kg / cm ²⁾ is set to a degree). For this reason, all the cylinders are extended at the same time until the welding plates that are paired in the front and rear contact each other at the center, and then the front and rear first head assemblies 71 and second head assemblies 72 are in the center even if the internal pressure of each cylinder rises. The first sheet 41 and the second sheet 42 are held in a sandwiched state.

  The packing control device detects the bottom of each cylinder after a predetermined time has elapsed after the air supply to the first cylinder 75, 75 and the second cylinder 76, 76 has started, or after the cylinder internal pressure of each cylinder has increased to a predetermined pressure. Air supply to the side port is stopped, and this time, air is supplied to the rod side port of each cylinder to reduce all cylinders. As a result, the first head assemblies 71 and 71 are retracted forward and the second head assemblies 72 and 72 are retracted rearward and are retracted into the front and rear mechanism frames 47, respectively.

  The operation control of the side welding mechanism 70 and the operation control of the welding cutting mechanism 50 are simultaneously performed in parallel, and the first sheet 41 and the second sheet 42 are welded on the four sides of the top, bottom, left and right, and the pachinko machine It is packed and cut between two welding lines at the top and bottom in the welding cutting mechanism 50 to form a welding line for packaging the next pachinko machine.

  A delivery mechanism 48 is provided below the side welding mechanism 70 so as to be positioned between the front and rear mechanism frames. The delivery mechanism 48 mainly includes a roller conveyor 48a having a plurality of rotating rollers in which a motor is incorporated inside the roller. The upper surface of the roller conveyor 48a has a slightly wider interval than the width in the front-rear direction of the pachinko machine PM. The pachinko machine is guided by the attached guide plate and guided to the adjacent shipping label attaching stage 24.

  Now, the operation of not only the packaging device body 40 described above but also the entire automatic packaging device is controlled by the packaging control device, and the packaging control device controls the operation of each part of the handling robot 30 and the packaging device body 40 to make a pachinko machine. The machine PM is automatically packed. Hereinafter, an outline of the operation control of the entire automatic packing device 23M by the packing control device will be described.

  First, the pachinko machine PM sent out from the stamp pasting stage 22 by the transport mechanism 25 and carried into the packing stage 23 is introduced into the stage by the roller conveyor 26a of the introduction mechanism 26, detected by the introduction detector 26c, and the reference position Positioning is stopped.

  When the detection signal is input from the introduction detector 26c, the packing control device lowers the Z-axis carriage 33 of the handling robot 30 to dispose the clamp arm 35a on the left and right sides of the pachinko machine, and supplies air to the clamp cylinder 35s. The left and right clamp arms 35a are pivoted inward to sandwich the outer frame from the left and right, and a plurality of locking pins provided on the clamp arm are bitten into the outer frame to hold the pachinko machine PM so that it can be lifted. . Next, the Z-axis stepping motor is rotationally driven to raise the Z-axis carriage 33, and the X-axis stepping motor is rotationally driven to move the X-axis carriage 32 to the right so that the pachinko machine PM held by the clamp 35 is moved. It arrange | positions above the packaging apparatus main body 40 (refer FIG. 4). Then, the Z-axis stepping motor is rotationally driven to lower the Z-axis carriage 33 at a low speed, and the pachinko machine PM is slowly lowered between the front and rear mechanism frames.

  Then, first, the bottom surface of the pachinko machine PM comes into contact with the inner surfaces of the first and second sheets welded and joined in advance, and the first and second packing rolls 41R and 42R to which appropriate friction is applied, respectively. The sheet is moved downward while feeding a sheet having a length corresponding to the lowered position, and the lowering of the Z-axis carriage 33 is stopped at a height position where the lower surface of the pachinko machine is supported by the feeding mechanism 48. Then, the left and right clamps 35 are released, the Z-axis carriage 33 is raised, the X-axis carriage 32 is moved to the left, and the handling robot 30 returns to the original standby position. As a result, the pachinko machine PM is positioned between the first sheet 41 and the second sheet 42 stretched in a V shape in a side view (see FIG. 8A), and is supported on the delivery mechanism 48. The At this time, the rotating roller of the delivery mechanism 48 is stopped.

  After the left and right clamps 35 are retracted upward, the packaging operation by the welding and cutting mechanism 50 and the side welding mechanism 70 is started. The packing control device supplies air to the bottom side ports of the four cylinders 55U, 55L, 56U, and 56L of the welding and cutting mechanism 50, and connects the upper and lower first head assemblies 51U and 51L and the second head assemblies 52U and 52L. As shown in FIG. 6 and FIG. 7, the first sheet 41 and the second sheet 42 are welded at two places, upper and lower, and cut at an intermediate portion thereof. Further, the packing control device supplies air to the bottom side ports of the four cylinders 75, 75, 76, 76 of the side welding mechanism 70, and the left and right first head assemblies 71, 71 and second head assemblies 72, 72 are supplied. Projecting in the center, and the left and right sides of the first sheet 41 and the second sheet 42 are welded together.

  Then, after a lapse of a predetermined time from the start of air supply to each cylinder, the packing control device supplies air to the rod side port of each cylinder, and draws each head assembly into the front and rear mechanism frames 47, respectively. When the head assemblies of the welding cutting mechanism 50 and the side welding mechanism 70 are pulled into the mechanism frame 47, the pachinko machine PM is wrapped in the first sheet 41 on the front side and the second sheet 42 on the rear side, and is moved up and down and left and right. All the sides are welded and separated from the first and second sheets welded and joined above, and the packaging of the pachinko machine PM is completed.

  When the packaging of the pachinko machine PM is completed, the rotary roller of the delivery mechanism 48 is driven to rotate and is guided by the guide plate provided on the upper surface of the roller conveyor 48a, so that the pachinko machine PM is delivered to the shipping label pasting stage 24. The shipping label affixing stage 24 is provided with an automatic label affixing machine (not shown) for affixing a shipping label that clearly indicates the delivery destination of the pachinko machine on the upper surface of the sheet of the pachinko machine PM sent out after being packed in a sheet. There is provided a rollover transport device 90 that lays down a pachinko machine to which a label is attached and sends it to a carry-out roller way 95 at the end of the shipping line 20.

  The rollover device 90 has a plurality of rotating rollers on the bottom side and the right side that communicate with the delivery mechanism 48, and has an L-shaped angle frame 91 in front view, and supports the angle frame 91 so as to be swingable in a vertical plane. 2 and when the rod is extended by supplying air to the bottom side port of the rollover cylinder 93 and the like. As indicated by the two-dot chain line, the angle frame 91 is swung clockwise, and the pachinko machine PM to which the shipping label is pasted by the automatic label pasting machine is sent to the carry-out roller way 95 in a lying position.

  The pachinko machine PM sent to the unloading roller way 95 at the end of the line after the pasting of the stamp on the shipping line 20, the packing with the resin sheet, and the pasting of the shipping label is completed is connected to the end of the unloading roller way 95. The cargo is loaded onto the cargo bed using a shipping auxiliary device installed between the cargo bed of the truck TR stopped at the shipping yard and shipped to each delivery destination.

  As described above, in the automatic packing apparatus 23M, the cutting plates 63 and 64 before and after the welding cutting mechanism 50 are provided with overlapping portions that sandwich the first and second sheets obliquely up and down, and the sheets are melted before and after. The cutting plates are further engaged with each other, and the melted overlapping portion is pulled apart and cut. For this reason, the first sheet 41 and the second sheet 42 are sufficiently heated and melted in the overlapping portion, and the molten overlapping portion is reliably cut.

  Further, when the front and rear cutting plates cut the overlapping portion, the upper and lower welding plates and the holding plate are relatively displaced back and forth while sandwiching the first and second sheets so as to assist the cutting of the overlapping portion. ing. Therefore, the first and second sheets melted at the overlapping portion of the cutting plate are pulled apart so as to be pulled back and forth, and are reliably cut at the overlapping portion. Thereby, cutting of a packing sheet is performed reliably and stably.

  Further, the automatic packing device 23M is configured so that the upper first welding plate and the first cutting plate, the lower second welding plate and the second cutting plate are integrally driven by one cylinder, respectively, The drive member is driven by four cylinders to achieve the above function. For this reason, the mechanism structure of the whole packaging apparatus including a slide mechanism can be simplified. In addition, since the packing control device controls the operation of the cylinders facing each other, the first and second sheets are cut and the cutting is aided by relative displacement of the upper and lower welding plates. It is possible to provide a packaging device with improved operational stability with a low-cost system configuration.

  In the above-described embodiment, the configuration example in which the front first cutting plate is disposed in the upper first head assembly and the rear second cutting plate is disposed in the lower second head assembly has been described. Even if the arrangement of the plates is changed, the same configuration can be achieved. For example, the first cutting plate is disposed in the lower first head assembly, the second cutting plate is disposed in the upper second head assembly, and the air pressure of the lower first cylinder and the upper second cylinder is set to be high. Can be configured similarly.

  In addition, as an example of the control mode of the front and rear cylinders, a configuration example in which the set pressure of the compressed air supplied to each cylinder is different between the front and rear cylinders has been shown. Use an electric regulator to set the initial supply pressure to the same pressure (for example, 0.4 MPa), and then change the pressure of one of the opposing cylinders (for example, a head assembly with a cutting plate) after the front and rear head assemblies abut in the center. The supply pressure on the side may be changed to 0.6 MPa).

It is explanatory drawing which shows typically the process until the pachinko machine stored in the product warehouse is loaded on the truck through the shipping line. It is a front view of an automatic packing apparatus. It is a top view of an automatic packing apparatus. It is a front view which expands and shows the packaging apparatus main body in an automatic packaging apparatus. FIG. 5 is a side cross-sectional view of the head assembly as viewed in the direction of arrow V to arrow added in FIG. 4. It is explanatory drawing which shows the initial welding and cutting process of the 1st and 2nd sheet | seat by a welding cutting mechanism in steps to (a)-(c). FIG. 7 is an explanatory view showing stepwise the initial welding and cutting processes of the first and second sheets by the welding and cutting mechanism following FIG. 6 (c). It is explanatory drawing which shows the packaging process of the pachinko machine by a welding cutting mechanism. It is a plane sectional view of the side welding mechanism on the right side of the front.

Explanation of symbols

PM Pachinko machine TR Truck 10 Product warehouse 11 Storage shelf 12 Pallet 15 Outlet 18 Transport robot 20 Shipping line 21 Standby stage 22 Stamp sticking stage 23 Packing stage (23M automatic packing machine)
24 shipping label pasting stage 25 transport mechanism 26 introduction mechanism (26a roller conveyor, 26c introduction detector)
27 Stage base 30 Handling robot 31 Frame (31b Carriage base)
32 X-axis carriage 33 Z-axis carriage 35 Clamp (35a Clamp arm, 35s Clamp cylinder)
40 packaging device body 41 first sheet (41R first packaging roll)
42 2nd sheet (42R 2nd packing roll)
43 Roll holding part 44 Roll holder 45 Guide roller 47 Mechanism frame 48 Delivery mechanism (48a roller conveyor)
50 Welding and Cutting Mechanism 51U Upper First Head Assembly, 51L Lower First Head Assembly 52U Upper Second Head Assembly, 52L Lower Second Head Assembly 53U Upper Connection Bracket, 53L Lower Connection Bracket 55U Upper First Cylinder, 55L Lower First Cylinder 56U Upper second cylinder, 56L Lower second cylinder 57 Linear guide (57a slide shaft, 57b linear bush, 57c linear bush)
58 Tip fixing portion 59 Coil spring 61U Upper first welding plate, 61L Lower first welding plate 62U Upper second welding plate, 62L Lower second welding plate 63 First cutting plate 64 Second cutting plate 65U Upper first pressing plate, 65L Lower first pressing plate 66U Upper second pressing plate, 66L Lower second pressing plate 67 Heater 68 Heater 70 Side welding mechanism 71 First head assembly 72 Second head assembly 73 Connecting bracket 75 First cylinder 76 Second cylinder 77 Directly Motion guide (77a slide shaft, 77b linear bush, 77c linear bush)
79 Coil Spring 81 First Welding Plate 82 Second Welding Plate 85L, 85R First Presser Plate 86L, 86R Second Presser Plate 87 Heater 90 Rolling Conveying Device 91 Angle Frame 92 Bearing 95 Unloading Roller Way

Claims (6)

A packaging device for packaging a gaming machine with a sheet of thermoplastic resin,
A first packing roll wound with a long first sheet for covering the front side of the gaming machine and a second packing wrapped with a long second sheet for covering the rear side of the gaming machine A roll holding portion that supports the rolls arranged side by side in a rotatable manner, and the first sheet and the second sheet drawn out from each packing roll are arranged to be freely drawn out;
The first sheet drawn out from the first packing roll and drooping down and the second sheet drawn out from the second packing roll and drooped are overlapped in the front and back, and sandwiched from outside to weld these sheets in the width direction. And a welding cutting mechanism for cutting,
A moving mechanism for bringing one side surface of the gaming machine into contact with the inner surface of the sheet welded and bonded by the welding cutting mechanism and moving the gaming machine relatively downward to wind the bonded sheet; Prepared,
The welding / cutting mechanism is provided on the outer surface side of the first sheet and the outer surface side of the second sheet, which are suspended from each other, and opposed to each other in the front-rear direction, and sandwiches the first sheet and the second sheet from the outside. An upper and lower welding structure, and a cutting structure provided between the upper and lower welding structures to cut between the welded portions of the first and second sheets,
When the upper and lower welding structures sandwich the first and second sheets, the cutting structure sandwiches the first and second sheets diagonally up and down to melt these sheets in the overlapping portion, and further bite each other 3. A packing apparatus for a gaming machine, wherein the melted overlapping portion is separated and cut. The upper and lower welding structures are located on the outer surface side of the first sheet that hangs down, and are provided on the outer surface side of the second sheet and an upper first welding member and a lower first welding member that are slidably movable back and forth. An upper second welding member and a lower second welding member that are positioned and slidably movable back and forth;
The cutting structure includes a first cutting member positioned between the upper first welding member and the lower first welding member and slidably movable back and forth, and an upper second welding member and a lower second welding member. A second cutting member that is positioned between and slidably movable back and forth,
The upper welding structure composed of the upper first welding member and the upper second welding member, and the lower welding structure composed of the lower first welding member and the lower second welding member, respectively, attach the first and second sheets. Sandwiched and welded these sheets up and down, the first cutting member and the second cutting member sandwiched the first and second sheets diagonally up and down to melt these sheets in the overlapping portion,
When the first cutting member and the second cutting member further bite back and forth to cut the melted overlapping portion, the upper welding structure and the lower welding structure cause the first and second sheets to move. 2. The gaming machine packing device according to claim 1, wherein the game machine packaging device is configured to assist relative cutting of the overlapping portion by being relatively displaced back and forth while being sandwiched. A slide mechanism that slides back and forth the upper first welding member, the lower first welding member, the upper second welding member, the lower second welding member, the first cutting member, and the second cutting member,
An upper first cylinder that integrally slides the upper first welding member and the first cutting member back and forth, a lower first cylinder that slides and moves the lower first welding member back and forth, and the upper second welding member An upper second cylinder that slides back and forth, and a lower second cylinder that slides back and forth integrally with the lower second welding member and the second cutting member,
A cylinder control device for controlling the operation of each of the upper first cylinder, the lower first cylinder, the upper second cylinder, and the lower second cylinder;
The packing of a gaming machine according to claim 2, wherein the cylinder control device controls the welding and cutting operations of the first and second sheets by controlling the operations of the cylinders. apparatus. A first packing roll wound with a long first sheet for covering the front side of the gaming machine and a second packing wrapped with a long second sheet for covering the rear side of the gaming machine A roll holding portion that supports the rolls arranged side by side in a rotatable manner, and the first sheet and the second sheet drawn out from each packing roll are arranged to be freely drawn out;
The first sheet drawn out from the first packing roll and drooping down and the second sheet drawn out from the second packing roll and drooped are overlapped in the front and back, and sandwiched from outside to weld these sheets in the width direction. And a welding cutting mechanism for cutting,
A moving mechanism for bringing one side surface of the gaming machine into contact with the inner surface of the sheet welded and bonded by the welding cutting mechanism and moving the gaming machine relatively downward to wind the bonded sheet; Prepared,
The welding / cutting mechanism is provided on the outer surface side of the first sheet and the outer surface side of the second sheet that hangs down and is opposed to each other in the front-rear direction, and the first sheet and the second sheet are sandwiched from outside to be welded. Control method for packing apparatus of gaming machine comprising upper and lower welding structures that cut and a cutting structure that is provided between the upper and lower welding structures and that cuts between the welded portions of the first and second sheets Because
A first step of sandwiching the first and second sheets by the upper and lower welding structures to weld these sheets;
A second step of sandwiching the first and second sheets obliquely up and down by the cutting structure and melting these sheets in the overlapping portion;
A control method for a packing apparatus for a gaming machine, comprising: a third step of further cutting the melted overlapping portion apart and cutting the melted overlapping portion. The upper and lower welding structures are located on the outer surface side of the first sheet that hangs down, and are provided on the outer surface side of the second sheet, and an upper first welding member and a lower first welding member that are slidably movable back and forth. It is configured to have an upper second welding member and a lower second welding member that are positioned so as to be slidable back and forth,
The cutting structure includes a first cutting member positioned between the upper first welding member and the lower first welding member and slidably movable back and forth, and an upper second welding member and a lower second welding member. A second cutting member that is positioned between and slidably movable back and forth,
In the first step, an upper welding structure composed of the upper first welding member and the upper second welding member, and a lower welding structure composed of the lower first welding member and the lower second welding member, respectively, Sandwiching the first and second sheets and welding these sheets up and down,
In the second step, the first cutting member and the second cutting member sandwich the first and second sheets diagonally up and down to melt these sheets at the overlapping portion,
In the third step, when the first cutting member and the second cutting member further bite back and forth to cut the melted overlapping portion, the upper welding structure and the lower welding structure are The method for controlling a packaging device for a gaming machine according to claim 4, wherein the first and second sheets are relatively displaced forward and backward while being sandwiched to assist the cutting of the overlapping portion. A slide mechanism that slides back and forth the upper first welding member, the lower first welding member, the upper second welding member, the lower second welding member, the first cutting member, and the second cutting member;
An upper first cylinder that slides the upper first welding member and the first cutting member integrally back and forth, a lower first cylinder that slides the lower first welding member back and forth, and an upper second welding member. An upper second cylinder that slides back and forth, and a lower second cylinder that slides back and forth integrally with the second cutting member and the second welding member;
A cylinder controller that controls the operation of each of the upper first cylinder, the lower first cylinder, the upper second cylinder, and the lower second cylinder;
In the first step and the second step, the cylinder controller operates the upper first cylinder, the lower first cylinder, the upper second cylinder, and the lower second cylinder at the same time, and Causing welding by the welding structure and the lower welding structure, and melting of the overlapping part by the cutting structure,
In the third step, the cylinder control device controls the operation of the opposing cylinders, so that the cutting of the first and second sheets by the cutting structure and the relative relationship between the upper welding structure and the lower welding structure. 6. The method for controlling a packing apparatus for a gaming machine according to claim 5, wherein cutting assistance by displacement is performed.

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