JPH066205U - Ligating device for film package - Google Patents

Abstract

(57) [Summary] [Object] In a ligation device for ligating a film package with a wire, the wire is reliably pinched to ligate the film, and the work of exchanging the ligation mold is simplified. [Structure] A focusing plate 41b for focusing the film package,
A holding recess 41f is formed on the upper and lower surfaces of the focusing member 41 integrally formed with 41c, and a through hole 41g is formed. The symmetrical ligating dies 43 and 44 are the holding recesses 41.
Mounted in f and secured to each other by bolts 45.
By loosening the bolt 45, the ligating molds 43 and 44 can be removed from the focusing member 41 and replaced. The ligating dies 43 and 44 each have a recess 4 for squeezing the wire.
3g and 44g are formed, and small recesses 43h and 44h are formed on the bottom surfaces of the recesses 43g and 44g. When the wire is deformed and held in the recesses 43g and 44g and pinched, the wire is slid by the small recesses 43h 1 and 44h , and the film is reliably ligated by the wire.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a wrapping device for a film wrapping body, in which a film wrapping body filled with contents such as sausage, ham, cheese, etc. is bundled, squeezed with a wire such as aluminum and ligated, and in particular, the wire is slid by a mold. The present invention relates to a ligating device for a film package, which is securely tightened without causing any trouble, and which facilitates the work of exchanging the mold.

[0002]

[Prior art]

 FIG. 12 is an external view showing, for example, a sausage in which a processed meat or the like is filled in a tubular film package. The film package 16 is, for example, a copolymer of vinylidene chloride and vinyl chloride, and a biaxially stretched film 1 is formed into a tubular shape, and the edges thereof are joined together to form a welding line 2 by high frequency welding. It is a thing. While the tubular film package 16 is filled with contents such as processed meat, wires such as aluminum are squeezed and ligated at both ends to form the wire clip 3.

FIG. 13 shows a schematic structure of a conventional continuous filling and packaging apparatus in which a tubular film packaging body 16 is formed, the contents are filled in the tubular film packaging body 16 and the film packaging body 16 is ligated. In FIG. 13, reference numeral 4 indicates a metering pump, and reference numeral 5 indicates a filling nozzle connected below the metering pump 4. Contents such as processed meat are sent out by a supply pump (not shown) installed on the floor of the workplace, etc., and transferred to the metering pump 4 via the supply pipe, and the metering pump 4 uses the film package. The contents are sent to the filling nozzle 5 at a constant flow rate according to the manufacturing speed of 16.

A molding member 6 is provided around the upper portion of the filling nozzle 5 in the drawing. The film 1 that is pulled out in a flat shape from the original fabric 7 is guided by the guide rolls 9 a and 9 b and is formed into a tubular shape by the forming member 6. High-frequency electrodes 10 and 11 are provided below the forming member 6 so as to face each other. After the film 1 is formed into a tubular shape by the forming member 6, the edges of the film 1 which are joined together are placed in the high-frequency electrode. High-frequency welding is performed by 10 and 11 to form the welding line 2. The contents are continuously filled by the filling nozzle 5 into the inside of the tubular film package 16 formed in this way.

Film feed rollers 12 and 13 are provided below the filling nozzle 5, and the tubular film package 16 filled with the contents is continuously moved downward by the film feed rollers 12 and 13. Sent to. Further, on the lower side, there is provided a pair of thickness-reducing rollers 14, 14 which are periodically driven by the thickness-reducing mechanism 14a in the direction shown by the arrow in FIG. The film package 16 is intermittently flattened. A ligating / cutting unit 15 is arranged below the pair of flesh weight rollers 14, 14.

The ligation / cutting unit 15 is adapted to reciprocate up and down in accordance with the descending speed of the film packaging body 16 which is divided and descends. In this ligating / cutting unit 15, a pair of upper and lower moving members 15a 1 and 15a 2 are provided on one side portion which sandwiches the film package 16, and a focusing plate 15b and a mold 15c are integrally formed on each moving member 15a 1 and 15a. Has been formed. On the opposite side, a pair of focusing plates 15d and 15d arranged vertically and two molds 15e and 15e arranged inside the focusing plates 15d and 15d are provided. A cutting blade 15f is provided between 15e and 15e.

When the moving members 15a, 15a on the left side move to the right in the figure and the focusing plate 15d on the right side moves to the left by the mechanism in the ligation / cutting unit 15, the part of the film package 16 that has been divided into It is sandwiched between the focusing plate 15b and the focusing plate 15d to be bundled, and then a wire such as aluminum is clamped by the mold 15c and the mold 15e, and the upper and lower two places are ligated to form the ring-shaped wire clip 3. To be done. Further, the film is cut by the cutting blade 15 f in the middle of the upper and lower wire clips 3 and separated into individual packages as shown in FIG.

[0008]

[Problems to be solved by the device]

 In the wire ligation work of the ligation / cutting unit 15, the wire is deformed into a U-shape, and the U-shaped wire is squeezed by the molds 15c and 15e to form a ring-shaped wire clip 3 as shown in FIG. However, in the die 15c on the side that holds the U-shaped wire, slippage occurs between the U-shaped curved portion of the wire and the inner surface of the die 15c during the tightening operation, and There is a case in which the wire clip 3 having a normal shape cannot be formed because the pressure is not surely narrowed between 15c and 15e. In such a case, there is a problem that the wire is not tightly attached to the film and the package cannot be reliably sealed.

Further, on the left side of FIG. 13, the focusing plate 15b and the mold 15c are integrated to form a moving member 15a. The metal mold 15c and the metal mold 15e facing each other approach each other at a predetermined cycle, and a wire such as aluminum is sandwiched between the metal molds 15c and 15e to apply pressure to deform the wire into a ring shape. Ligate. Therefore, the molds 15b and 15e are parts that are heavily worn, and it is necessary to replace them regularly during maintenance work.

However, when the focusing plate 15b and the mold 15c are integrally formed in the same block as in the conventional example shown in FIG. 13, the focusing plate 15b is also worn every time the mold 15c is worn. Must be exchanged together. Since the focusing plate 15c merely focuses the film, it hardly wears, and it is useless to replace it with the mold 15c. Further, since the moving member 15a in which the focusing plate 15b and the mold 15c are integrated is attached to the movable portion of the drive mechanism, the work of replacing the entire moving member 15a becomes complicated.

The present invention is intended to solve the above-mentioned conventional problems, so that the wire can be securely pinched and deformed to squeeze the film, and the replacement work can be easily performed when the die is worn. An object of the present invention is to provide a ligating device for a film package as described above.

[0012]

[Means for Solving the Problems]

 The present invention has a focusing member having a focusing groove for concentrating the film when facing the both sides of a film package filled with contents and approaching each other, and sandwiching the film focused by the focusing member from both sides. In a ligating device for a film package, which is provided with a die for squeezing a wire on a film and ligating the film, and a drive mechanism for driving the focusing member and the die in the film focusing and ligating directions, In addition, a concave portion or a convex portion that prevents the wire from slipping is formed in the concave portion that is a mold for tightening the wire.

Further, at least one of the focusing members and the mold are integrally operated, and the mold is detachably attached to the focusing member.

[0014]

[Action]

 In the above means, by forming a concave portion or a convex portion in the concave portion of the mold, it is possible to prevent the wire from moving accidentally inside the mold when the wire is squeezed by the mold. As a result, the wire can be reliably tightened.

Further, in a ligating device having a focusing member and a mold that operate integrally, since the mold is detachable from the focusing member, when the mold wears due to repeated ligation operations. Moreover, it is possible to replace only the mold. Moreover, since it is possible to replace only the mold while the bundling member is still attached to the ligature, the mold replacement work is easy.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. 1 is an exploded perspective view showing a focusing member, a mold, and a wire cutting member, FIG. 2 is a sectional view showing a state in which the focusing member, a mold, and a wire cutting member are combined, and FIG. 3 (A) is shown in FIG. Partial plan view of the mold shown, (B) is a sectional view thereof, (C) is a bottom view thereof, FIG. 4 is a plan sectional view showing the entire structure of the ligation / cutting unit, and FIG. 5 is a longitudinal sectional view thereof. 6 is a sectional view taken along line VI-VI in FIG. 5, FIG. 7 is a left side view of FIG. 6, FIG. 8 is a sectional view taken along line VIII-VII I of FIG. 6, and FIG.

First, the overall structure of the ligation / cutting unit 20 will be described with reference to FIGS. 4 and 5. A unit base 22 is housed in a cover 21 of the ligation / cutting unit 20. As shown in FIG. 5, an input shaft 23 is rotatably provided by a bearing 24 on the left side of the unit base 22 in the figure, and rotational power is externally applied to the input shaft 23. A drive arm 25 is provided on the upper end of the input shaft 23, and a drive roller 26 rotatably supported by the drive arm 25 is inserted into a groove 27 a of a moving block 27. By the rotation of the drive arm 25, the moving block 27 is guided in the left and right guide portions 28 and 29 shown in FIG.

On the right side of the unit base 22 in the figure, an input shaft 31 is rotatably provided by a bearing 32, and a drive arm 33 having a drive roller 34 is provided at the upper end of the input shaft 32. Is inserted in the groove 35a of the moving block 35. When the driving arm 33 is rotationally driven by the power of the input shaft 31, the moving block 35 is guided by the guide portions 28 and 29 and is driven in the lateral direction in the drawing. A guide cylinder 36 is provided between the left and right moving blocks 27 and 35, and the film packaging body 16 whose contents are divided by the thickness dividing roller 14 as shown in FIG. Pass through.

In the present invention, an operation mechanism 40 for focusing a film, cutting a wire, and ligating a film is provided on the moving block 27 on the left side. The structure of the operating mechanism 40 will be described. The operating mechanism 40 is provided with a focusing member 41. As shown in FIGS. 4 and 5, the focusing member 41 is elongated in the left and right directions, and holding grooves 41a and 41a are formed on both sides of the base portion thereof. A fixed block 42 is fixed to the upper surface of the moving block 27, and the fixing block 42 and the holding grooves 41a, 41a are fitted to each other so that the focusing member 41 is fixed on the moving block 27.

As shown in FIGS. 1 and 2, two upper and lower focusing plates 41b and 41c are integrally provided at the tip of the focusing member 41, and each of the focusing plates 41b and 41c has a V-shape. A shaped guide groove 41d and a focusing groove 41e located at the bottom of the V-shape are formed. On the upper and lower surfaces of the focusing member 41, a holding recess 41f and a through hole 41g that are continuous with the rear end of the focusing groove 41e are formed. Ligating dies 43 and 44 having symmetrical shapes are attached to the holding recess 41f from the upper and lower surfaces.

Each of the ligating dies 43 and 44 is provided with flanges 43a and 44a fitted into the holding recess 41f and fitting protrusions 43b and 44b fitted into the through hole 41g. Has been done. As shown in FIG. 2, the ligating dies 43 and 44 are positioned such that the collar portions 43a and 44a of the ligating dies 43 and 44a are fitted into the holding recesses 41f, and the bolt inserting holes formed in the ligating dies 43 and 44, respectively. 43c and 44d and screw holes 44c and 43d are tightened with bolts 45. As a result, in each of the ligating dies 43 and 44, the surfaces of the collar portions 43a and 44a are substantially flush with the upper and lower surfaces of the focusing member 41, and the guide protrusions 43e and 44e project from the upper and lower surfaces of the focusing member 41. It can be installed in the condition

Grooves 43f and 44f, which are continuous with the focusing grooves 41e of the focusing plates 41b and 41c, are formed in the upper and lower ligating dies 43 and 44, respectively, and wire tightening is provided at the tips of the guide protrusions 43e and 44e. Molds (referred to as recesses in the present embodiment) 43g and 44g are formed. As will be described later, the recesses 43g and 44g cooperate with the recesses 96a and 97a of the corresponding molds provided in the moving block 35 to transform the linear wire into the shape of the wire clip 3. And has a groove that abuts the outer shape of the wire clip 3. Generally, since the wire clip 3 has a ring shape, the recesses 43g, 44g, 96a and 97a are formed as semi-ring grooves.

3A to 3C show the shapes of the groove 43f and the recess 43g in detail. As shown in FIG. 3, a small recess 43h having a slight depth is formed at the inner bottom of the wire tightening recess 43g to prevent the wire from slipping. Alternatively, a small convex portion may be formed instead of the small concave portion 43h. The recess 44g in the ligation die 44 on the symmetrical side has the same shape as that shown in FIG. 3, and a small recess 44h (see FIG. 2) is also formed in the inner bottom portion thereof.

Sliding grooves 46a and 47a of wire cutting members 46 and 47 are slidably fitted in the guide protrusions 43e and 44e of the ligating dies 43 and 44, respectively. As shown in FIGS. 4 and 5, holding protrusions 46b and 47b are formed at the bases of the wire cutting members 46 and 47, and the holding protrusions 46b and 47b are fixed to the holding block 48. Two guide shafts 49, 49 are fixed to the holding block 48, and the inner shafts 49, 49 are slidably inserted into bearings 51, 51 fixed to the moving block 27. Further, the guide shafts 49, 49 are provided with a biasing spring 52, and the holding block 48 is biased rightward in the figure by the biasing springs 52, 52. That is, the focusing member 41 is fixed to the moving block 27, but the wire cutting members 46 and 47 are slid between the guide shafts 49 and 49 and the bearings 51 and 51. It can move relative to 43 and 44.

As shown in FIG. 1, blades 46 c and 47 c are formed on the right edges of the tips of the wire cutting members 46 and 47. Grooves 46d and 47d corresponding to the focusing grooves 41e formed in the focusing member 41 are formed at the tips of the wire cutting members 46 and 47. Detection holes 46e and 47e are formed behind the grooves 46d and 47d. 2, FIG. 4, FIG. 5, etc. all show a state in which the moving block 27 has moved to the left in the figure, and the focusing member 41 and the wire cutting members 46 and 47 have both retracted to the left in the figure. At this time, the detection holes 46e and 47e face directly above and below the constricting recesses 43g and 44g of the ligating molds 43 and 44, that is, at positions where the wire is temporarily held during tightening.

As shown in FIGS. 4 and 5, a shaft 55 is rotatably supported by the moving block 27, a pressing arm 56 is fixed to the shaft 55, and a pressing block 56 a is attached to the tip of the pressing arm 56. It is provided. As shown by the solid line in FIG. 5, when the pressing block 56a is in contact with the rear surface of the holding block 48, the holding block 48 is restricted from moving relatively to the left in the drawing on the moving block 27. It That is, in this state, the holding block 48 is restricted from moving to the left in the drawing by sliding between the guide shafts 49, 49 and the bearings 51, 51. The pressing arm 56 is urged clockwise by the spring 57 in FIG. A drive arm 58 is fixed to the end of the shaft 55, and a follower roller 59 is rotatably provided on the drive arm 58. A flat cam 29a is formed on the guide portion 29, and the follower roller 59 rolls on the flat cam 29a.

As shown in FIGS. 4 and 5, when the moving block 27 is on the left side in the drawing, the pressing block 56a of the pressing arm 56 that is rotating clockwise by the urging force of the spring 57 causes the holding block 56a to rotate. It hits the back of 48. When the moving block 27 moves to the right in the figure from this position, the pressing block 56a restricts the movement of the holding block 48 in the left direction in the figure, and the wire cutting members 46 and 47 fixed to the holding block 48 move. , And moves forward in the right direction in the figure without changing the relative position to the focusing member 41. After the wire W, which will be described later, is cut by the wire cutting members 46 and 47, the follower roller 59 is lifted by the flat cam 29a and the pressing block 56a is rotated counterclockwise as shown by the chain line in FIG. Then, the pressing block 56a is disengaged from the holding block 48. Therefore, thereafter, the holding block 48 can relatively move leftward in the drawing on the moving block 27 against the biasing force of the springs 52 and 52 by sliding the guide shafts 49 and 49 and the bearings 51 and 51. As a result, the wire cutting members 46 and 47 fixed to the holding block 48 can be moved relative to the bundling member 41 fixed to the moving block 27 and the ligating dies 43 and 44.

Further, as shown in FIG. 4, contact positioning shafts 61, 61 extending rightward in the drawing are fixed to both sides of the holding block 48. As shown in FIGS. 4 and 5, a guide block 65 is fixed to the unit base 22.

As shown by the chain line in FIG. 6 (VI-VI sectional view of FIG. 5) and FIG. 2, a guide hole 65 a is formed in the guide block 65, and the focusing member 41, the ligation mold 43, A combination of the wire cutting member 44 and the wire cutting members 46 and 47 slides in the guide hole 65a without a gap. As shown in FIG. 6, receiving blades 65b and 65c are formed on the upper right edge and the lower right edge of the guide hole 65a. Further, wire supply holes 65d and 65e for guiding the aluminum wire W are formed in the receiving blade portion. The wire W supplied from the wire supply holes 65d and 65e is cut by the blades 46c and 47c and the receiving blades 65b and 65c when the wire cutting members 46 and 47 move forward.

As shown in FIG. 6, a shaft 68 is rotatably supported by bearings 66, 66 on the upper portion of the guide block 65, and a shaft 69 is rotatably supported on the lower portion by bearings 67, 67. It is supported. A gear plate 71 is fixed to the end of the shaft 68, and a gear plate 72 is fixed to the end of the shaft 69. The gear plates 71 and 72 are formed with the same pitch circle diameter and the same module. The tooth portions 71a and 72a mesh with each other. A drive link 73 is connected to the lower gear plate 72. When the gear plate 72 is driven by the driving force of the driving link 73, the shafts 68 and 69 are driven in the reverse rotation direction in synchronization with each other due to the meshing of the tooth portions 71a and 72a.

As shown in FIGS. 5 and 8, a nose support block 74 is fixed to the upper shaft 68, and an upper nose 76 is supported by the nose support block 74. A similarly symmetrical nose support block 75 is fixed to the lower shaft 69, and a lower nose 77 is supported by the nose support block 75. As shown in FIG. 5, when the wire cutting members 46 and 47 move forward with the upper and lower noses 76 and 77 facing the front of the wires W and W, the wires W and W cut by the blade are moved. W is sandwiched between wire cutting members 46 and 47 and noses 76 and 77, and bent into a U shape as shown in FIG. 11 (B).

As shown in FIG. 8, a sleeve 78 is rotatably provided on the upper shaft 68, and a plate portion 78 b provided on the sleeve 78 and a plate portion attached to the nose support block 74. A spring 82 is interposed between the sleeve 78 and 74a, so that when the nose support block 74 is driven counterclockwise in FIG. 8, the sleeve 78 is pushed by the spring 82 to rotate counterclockwise. It has become. An arm portion 78a is integrally provided on the sleeve 78, and the arm portion 78a is inserted into the detection member 79. The detection member 79 can be moved up and down by the rotation of the sleeve 78 while maintaining the vertical posture. Further, a detection pin 79a is provided at the lower end of the detection member 79, and as shown in FIG. 2, the detection pin 79a faces the detection hole 46e of the wire cutting member 46 moved to the left in the drawing. . The sleeve 78 is provided with a detection plate 81, and the guide block 65 is provided with a proximity switch 83 for detecting the detection plate 81.

Similarly, a sleeve 85 is rotatably provided on the lower shaft 69, and a plate portion 85 b provided on the sleeve 85 and a plate portion 75 a attached to the nose support block 75 are provided. A spring 89 is interposed between the two, and when the nose support block 75 is driven in the clockwise direction, the sleeve 85 is pushed by the spring 89 and pivots in the clockwise direction. An arm portion 85a is integrally provided on the sleeve 85, and the arm portion 85a is inserted into the detection member 86. The detection member 86 can be moved up and down while the vertical posture is maintained by the rotation of the sleeve 85. Further, a detection pin 86a is provided on the upper end of the detection member 86, and the detection pin 86a faces the detection hole 47e of the wire cutting member 47 moved to the left in the figure from below. The sleeve 85 is provided with a detection plate 87, and the guide block 65 is provided with a proximity switch 88 for detecting the detection plate 87.

As shown in FIGS. 4 and 5, two guide shafts 91, 91 are fixed to the right moving block 35, and sleeves 92, 92 are slidably inserted into the guide shafts 91, 91. The sleeves 92, 92 are biased to the left in the drawing by springs 94, 94 provided on the outer circumferences of the guide shafts 91, 91. Focusing plates 93a and 93b are fixed to the sleeves 92 and 92 so as to face each other with an interval between the upper and lower sides. The focusing plates 93a and 93b are provided with a V-shaped guide groove 93c and a focusing groove 93d continuous to the V-shaped bottom portion thereof, respectively.

A mold block 95 is fixed to the moving block 35, and the mold block 95 is integrally formed with molds 96 and 97 which are vertically spaced from each other. Recesses 96a and 97a for wire tightening are formed at the tips of the molds 96 and 97, respectively.

The left and right moving blocks 27 and 35 are driven toward each other by the rotational power of the input shafts 23 and 31. At this time, the focusing plates 41b and 41c on the left side of FIGS. 4 and 5 are on the right side. Of the ligating dies 43 and 44 on the left side and the recesses 96a and 97a of the dies 96 and 97 on the right side are brought together. At this time, the left ligating dies 43 and 44 and the cutting members 46 and 47 are inserted into the gap between the right focusing plates 93a and 93b.

A cutter 100 is provided in the right mold block 95, which is positioned between the upper and lower molds 96 and 97, and the cutter support block 101 supports the cutter 100 at its tip. Is supported so as to be movable left and right with respect to the mold block 95. A drive arm 103 is connected to the rear end of the cutter support block 100 by a pin 104. The drive arm 103 is rotatably supported on the moving block 35 about the shaft 102. A spring 105 is interposed between a plate portion 103a protruding from the drive arm 103 and a plate portion 108 fixed to the moving block 35. The biasing force of the spring 105 causes the drive arm 103 to rotate counterclockwise. That is, the cutter 100 is urged so as to retract backward in FIG.

A roller 106 is provided at the other end of the drive arm 103. As shown in FIG. 4, a stopper 107 is provided above the guide portion 29. When the moving block 35 moves leftward in the figure by a predetermined distance, the roller 106 contacts the front end of the stopper 107, and the drive arm 103 is driven in the clockwise direction as the moving block 35 moves leftward in the figure. As a result, the cutter support block 101 is driven leftward in the drawing, and as shown in FIG. 10, the cutter 100 projects leftward in the mold block 95 to cut the ligated film.

Next, the operation of the ligation / cutting block 20 having the above structure will be described. Similar to the continuous filling and packaging apparatus shown in FIG. 13, the film 1 is formed into a tubular shape by the forming member 6, and the high frequency electrodes 10 and 11 weld the edges of the film 1 at a high frequency to form a cylindrical film package. 16 is formed. Contents such as processed foods are continuously filled into the inside of the tubular film package 16 from the metering pump 4 through the filling nozzle 5. The film package 16 filled with the contents is fed downward by the rotation of the film feed rollers 12 and 13. In the thickness-reducing mechanism 14a, the thickness-reducing rollers 14 and 14 intermittently repeat the pressure contact operation, and the film packaging body 16 filled with the contents is intermittently crushed into a flat shape to be meat-reduced. This meat-reduced portion is indicated by reference numeral 16a.

The ligation / cutting unit 20 is entirely driven up and down by a reciprocating drive mechanism (not shown) in accordance with the descending speed of the thinned portion 16a of the film package 16. When the thinned portion 16a of the film package 16 and the ligation / cutting unit 20 descend at substantially the same speed, the following ligation / cutting work is performed. That is, when the ligation / cutting unit 20 descends according to the descending speed of the film package 16, rotational power is input to the input shafts 23 and 31 shown in FIG. While the drive rollers 26 and 34 move to the positions shown by the broken lines in FIG. 5 by the rotation of the drive arms 25 and 33 of FIG. The right moving block 35 moves to the left in the figure.

At the first stage in which both moving blocks 27 and 35 move toward each other, the focusing member 41 fixed to the left moving block 27, the ligating dies 43 and 44, and the holding block 48 are fixed. The wire cutting members 46 and 47 move in the guide hole 65a of the guide block 65 shown in FIG. At this point in time, the pressing arm 56 is urged in the clockwise direction by the spring 57, and the pressing block 56 a is in contact with the rear surface of the holding block 48. Therefore, when the moving block 27 moves and the focusing member 41 fixed to the moving block 27 moves to the right in the figure, the holding block 48 is locked on the moving block 27 by the pressing block 56a and is held by the holding block 48. The upper and lower cutting members 46 and 47 thus moved forward without changing their relative positions to the focusing member 41.

At this time, the aluminum wires W, W are supplied to the wire supply holes 65d, 65e formed in the guide block 65, and the blades 46c, 47c of the cutting members 46, 47 advancing and the blades of the guide block 65 are advanced. The wires W, W are cut by 65b, 65c. The state immediately before the wire W is cut is shown in FIG. At this time, the drive link 73 shown in FIG. 7 drives the shaft 68 in the guide block 65 in the clockwise direction and the shaft 69 in the counterclockwise direction, so that the upper nose 76 and the lower nose 77 are located in front of the respective wires W, W. Facing each other. Therefore, as shown in FIGS. 11 (A) to 11 (B), when the noses 76 and 77 are inserted into the grooves 46d and 47d of the cutting members 46 and 47 that move forward, the cut wire W, W is bent into a U shape, and the wires W in the U shape are held in the sliding grooves 46a and 47a of the cutting members 46 and 47 (see FIG. 11B). After the wires W, W are bent into a U-shape, the gear plate 72 is driven clockwise by the drive link 73 shown in FIG. 7, and the gear plate 71 meshing with the gear plate 72 is also rotated counterclockwise. Be driven to. Therefore, the shaft 68 and the shaft 69 are driven in mutually opposite directions, and the noses 76 and 77 escape from the moving regions of the wire cutting members 46, 47 and the like.

When the left and right moving blocks 27 and 35 further approach each other, as shown in FIG. 9, the focusing grooves 41e of the focusing plates 41b and 41c at the tip of the focusing member 41 on the left side and the focusing plates 93a on the right side, as shown in FIG. The flattened portion 16a of the film package 16 is focused by the focusing groove 93d of 93b. When the left and right moving blocks 27 and 35 come closer to each other, the moving pressing force of both moving blocks causes the sleeves 92 and 92 supporting the right focusing plates 93a and 93b to contract the springs 94 and 94. While sliding on the guide shafts 91, 91, they move to the right.

When both the moving blocks 27 and 35 further approach each other, as shown in FIG. 10, the tip ends of the contact positioning shafts 61, 61 fixed to the holding block 48 become tip ends of the right guide shafts 91, 91. Hit At this point, the pressing arm 56 is rotated counterclockwise via the drive arm 58 and the shaft 55 by the protrusion of the contact surface between the follower roller 59 and the flat cam 29a shown in FIG. The pressing block 56a is disengaged from the rear surface of the holding block 48 as shown by the chain line. Therefore, after the contact positioning shafts 61, 61 fixed to the holding block 48 contact the guide shafts 91, 91, the movement of the holding block 48 and the wire cutting members 46, 47 held by the holding block 48 is restricted. In the subsequent rightward movement of the moving block 27, the springs 52, 52 contract and the guide shafts 49, 49 fixed to the holding block 48 slide in the bearings 51, 51 on the moving block 27. .

Therefore, after the tips of the contact positioning shafts 61, 61 and the guide shafts 91, 91 hit each other, the wire cutting members 46 and 47 fixed to the holding block 48 do not move from their positions, and the wire cutting members The guide protrusions 43e and 44e of the ligating molds 43 and 44 slide in the sliding grooves 46a and 47a of the members 46 and 47, and the recesses 43g and 44g at the tips thereof and the recesses of the molds 96 and 97 on the right side. The portions 96a and 97a are butted against each other with the U-shaped wires W and W interposed therebetween, and the wires W and W are transformed into the shape of the wire clip 3 as shown in FIG. Be narrowed down. At this time, as shown in FIG. 3, since the curved portions of the wires W, W bite into the small recesses 43h, 44h formed on the inner bottom surfaces of the recesses 43g, 44g of the ligating dies 43, 44, the wires W, W are engaged with each other. The wire does not slip and rotate during the squeezing operation of W, W, and the film 1 is securely squeezed by the wires W, W, and the wire clip 3 is formed at two upper and lower positions.

The moving blocks 27 and 35 approach each other, and the recesses 43 g, 44 g and 96 a, 97 a of the ligating dies 43, 44 and the dies 96, 97 are completely butted to each other so that the wires W, W Immediately before tightening, the roller 106 shown in FIG. 4 hits the stopper 107, the drive arm 103 is driven clockwise by the movement of the moving block 35 to the left, and the cutter support block 101 is moved to the left in the figure. 10, the cutter 100 is driven to a position where it pierces the film 1 as shown in FIG. 10, and the film 1 is cut in the middle of the portion where the clips 3, 3 are formed by the wires W, W.

After the above-mentioned ligation / cutting work is completed, the moving blocks 27 and 35 are driven in the directions away from each other by the rotation of the input shafts 23 and 31 shown in FIG. After the contact positioning shafts 61, 61 fixed to the holding block 48 on the left side and the guide shafts 91, 91 on the right side are separated from each other, the relative positions of the wire cutting members 46, 47 and the ligating dies 43, 44. Becomes the state shown in FIG. 2 and returns to the left in the figure. At this time, the drive link 73 shown in FIG. 7 is driven to the right in the drawing, the shaft 68 is driven counterclockwise, and the shaft 69 is driven clockwise. Therefore, the upper nose support block 74 shown in FIG. 8 is rotated counterclockwise, the urging force of the spring 82 urges the sleeve 78 counterclockwise, and the elastic force of the spring 82 causes the detection pin 79a to move. It is pressed against the upper surface of the wire cutting member 46. Since the lower nose support block 75 is driven in the clockwise direction, it also presses the sleeve 85 in the clockwise direction via the spring 89, and the lower detection pin 86a is attached to the lower surface of the wire cutting member 47. It has been pressed.

When the wire cutting members 46 and 47 return to the positions shown in FIG. 2, the detection pins 79a and 86a receiving the biasing forces of the springs 82 and 89 as described above detect the wire cutting members 46 and 47. The ligating molds 43 and 44 are inserted into the recesses 43g and 44g for tightening the ligating dies 43 and 44 through the holes 46e and 47e. This state is shown by the dotted line in FIG. When the detection pins 79a and 86a enter the recesses 43g and 44g, the upper and lower detection plates 81 and 87 shown in FIG. 8 move together with the detection pins 79a and 86a. 88 is detected.

That is, when the detection outputs are obtained from the proximity switches 83 and 88, the wires W are not left in the recesses 43g and 44g of the ligating dies 43 and 44, and the detection pins 79a and 86a are not present. Can be detected to have completely entered the recesses 43g, 44g. Conversely, when the wires W, W remain in at least one of the recesses 43g, 44g of the returned ligature molds 43, 44, at least one of the detection pins 79a, 86a is in the recesses 43g, 44g. First, the detection output from at least one of the proximity switches 83 and 88 cannot be obtained.

By the above detection operation, when the wires W, W are not reliably ligated as shown in FIG. 11C and the wires W, W remain in the ligation dies 43, 44, the operation is performed. Can be interrupted and the wires W, W can be prevented from being cut again.

When the moving block 27 on the left side moves to the left in the drawing after the ligation work is completed, the holding block 48 is biased to the right in FIG. 27 and the converging member 41 fixed thereto return to the left in the drawing. At this time, the pressing arm 56, which is biased clockwise by the spring 57, returns to the posture shown by the solid line in FIG. 5 by the biasing force of the spring 57.

When the recesses 43g and 44g of the ligating dies 43 and 44 are worn by repeating the above-mentioned ligation / cutting operation, the wire cutting members 46 and 47 shown in FIGS. 1 and 2 are removed, and the bolts are removed. By loosening 45, the ligating dies 43 and 44 can be detached from the focusing member 41 and replaced. At this time, the focusing member 41 may be removed from the moving block 27, but it is also possible to work without removing it. Also, the right mold block 95 can be replaced as a single unit.

In the above embodiment, the drive arm 103 is connected to the cutter support block 101 as shown in FIG. 4, and the roller 106 provided on the drive arm 103 hits the stopper 107 to drive the drive arm 103. The cutter support block 101 is driven via the arm 103, so that the cutter 100 projects leftward. Therefore, the timing from the formation of the clip 3 by ligation with the wires W, W to the cutting of the film 1 by the cutter 100 is delicate, and the adjustment work is difficult. Then, the cutter supporting block 101 may be driven by a cylinder mechanism or the like, and the film 100 may be cut by advancing the cutter 100 with sufficient allowance after the ligation is completed.

According to the ligation device of the present invention in which the small concave portions or the small convex portions are formed on the ligating molds 43 and 44, the film packaging body 16 to be manufactured has the wire clip 3 on the outer surface thereof. It has a protrusion corresponding to the concave portion or a dent corresponding to the convex portion.

[0055]

[Effect of device]

 As described above, according to the first aspect of the present invention, by forming the convex portion or the concave portion on the inner surface of the concave portion for tightening the mold, the wire metal is tightened when the wire is tightened. It is possible to prevent slippage in the mold and perform a reliable ligation work.

According to the second aspect of the invention, since the focusing member and the mold can be separated from each other, when the mold wears due to repeated ligation work, only the mold is removed from the focusing member. Can be exchanged. Therefore, it is not necessary to replace the focusing member that is not worn. Further, this mold replacement work can be performed while the focusing member is attached to the apparatus, and the replacement work is easy.

[Submission date] January 8, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Change

[Correction content]

Further, on the left side of FIG. 13, the focusing plate 15b and the mold 15c are integrated to form a moving member 15a. The metal mold 15c and the metal mold 15e facing each other approach each other at a predetermined cycle, and a wire such as aluminum is sandwiched between the metal molds 15c and 15e to apply pressure to deform the wire into a ring shape. Ligate. Therefore, the molds 15c and 15e are parts that are heavily worn, and it is necessary to replace them regularly during maintenance work.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0010

[Correction method] Change

[Correction content]

However, when the focusing plate 15b and the mold 15c are integrally formed in the same block as in the conventional example shown in FIG. 13, the focusing plate 15b is also worn every time the mold 15c is worn. Must be exchanged together. Since the focusing plate 15b merely focuses the film, it hardly wears and it is useless to replace it together with the mold 15c. Further, since the moving member 15a in which the focusing plate 15b and the mold 15c are integrated is attached to the movable portion of the drive mechanism, the work of replacing the entire moving member 15a becomes complicated.

[Procedure 3]

[Document name to be amended] Statement

[Name of item to be corrected] 0045

[Correction method] Change

[Correction content]

Therefore, after the tips of the contact positioning shafts 61, 61 and the guide shafts 91, 91 hit each other, the wire cutting members 46 and 47 fixed to the holding block 48 do not move from their positions, and the wire cutting members The guide protrusions 43e and 44e of the ligating molds 43 and 44 slide in the sliding grooves 46a and 47a of the members 46 and 47, and the recesses 43g and 44g at the tips thereof and the recesses of the molds 96 and 97 on the right side. The portions 96a and 97a are butted against each other with the U-shaped wires W and W interposed therebetween, and the wires W and W are transformed into the shape of the wire clip 3 as shown in FIG. Be narrowed down. At this time, as shown in FIG. 3, since the curved portions of the wires W, W bite into the small recesses 43h, 44h formed on the inner bottom surfaces of the recesses 43g, 44g of the ligating dies 43, 44, the wires W, W are engaged with each other. The wire does not slip and rotate during the squeezing operation of W, W, and the film 1 is securely squeezed by the wires W, W, and the wire clip 3 is formed at two upper and lower positions. Here, a small recess 43h, the shape of the 44h, upon with choke wire W, W but is not limited to Japanese be any shape each other bite so as not slip in the mold bites into it partially, illustrated If so, it has an arbitrary planar shape such as a slit shape, a polygonal shape, a circular shape, an elliptical shape, and a depth of about 0.5 mm.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an assembled state of a focusing member, a ligating die, and a wire cutting member,

FIG. 2 is a cross-sectional view showing an assembled state of a focusing member, a ligating die, and a wire cutting member,

FIG. 3A is a partial plan view showing a distal end portion of a ligation die,
(B) is its sectional view, (C) is its bottom view,

FIG. 4 is a plan sectional view of a ligation / cutting unit,

FIG. 5 is a longitudinal sectional view of a ligation / cutting unit,

6 is a sectional view taken along line VI-VI of FIG.

7 is a left side view of FIG. 6,

8 is a sectional view taken along line VIII-VIII in FIG.

FIG. 9 is a partial plan view of a ligation / cutting unit showing a matching operation between a focusing member and a mold;

FIG. 10 is a partial plan view showing a state in which ligation is completed by fitting the molds together,

11 (A), (B), and (C) are operation explanatory diagrams showing respective operations of wire cutting, U-bending, and ligation.

FIG. 12 is a front view of a completed package such as sausage,

FIG. 13 is a structural explanatory view of a conventional continuous filling and packaging device,

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 film 16 film package 20 ligation / cutting unit 22 unit base 27,35 moving block 41 focusing members 41b, 41c focusing plate 43,44 ligating die 43g, 44g recessed portion 43h, 44h small recessed portion 46 , 47 wire cutting member 46c, 47c blade 46e, 47e detection hole 56 pressing arm 56a pressing block 65 guide block 76, 77 nose 79a, 86a detection pin 81, 87 detection plate 83, 88 proximity switch 93a, 93b converging plate 95 mold Block 96,97 Mold 100 Cutter W Wire

Claims (2)

[Scope of utility model registration request] 1. A converging member having converging grooves for converging the film when facing both sides of a film package filled with contents and approaching each other, and a film sandwiching the film focused by the converging member from both sides. In a ligating device for a film package, which is provided with a die for squeezing and ligating a wire to a wire, and a drive mechanism for driving the focusing member and the die in a film bundle and ligating direction, A ligating device for a film package, wherein a concave portion or a convex portion for preventing a wire from slipping is formed in a concave portion formed as a mold for use in a film package. 2. The film package according to claim 1, wherein at least one of the focusing member and the mold are integrally operated, and the mold is detachably attached to the focusing member. Ligation device.