JP2011246126A - Holding pocket of turret packaging machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a holding pocket of a turret packaging machine capable of securely preventing falling out of a packaged object from the holding pocket.SOLUTION: The holding pocket 51 is formed to have a rectangular parallelepiped shape having an opening end 50 allowing reception of a semi-wrapped pack 118 of a filter cigarette bundle where wrapping by a wrapping material is incomplete, and includes an upper wall 52, a bottom wall 54, right and left side walls 56, 57 and an end wall 58. A rectangular upper opening 62 is provided on the upper wall 52. A leaf spring unit 64 bent projectingly toward inside of the holding pocket 51 is arranged at the upper opening 62.

Description

  The present invention relates to a turret type packaging machine, and more particularly to a holding pocket of a turret type packaging machine that can reliably hold an object to be packaged.

As a turret type packaging machine for packaging a bundle of tobacco products such as filter cigarettes and cigarettes, for example, a packaging machine for producing cigarette packs as disclosed in Patent Document 1 has been proposed.
Japanese Patent No. 3437753

  By the way, in the packaging machine disclosed by patent document 1, the packaging material for the group 14 of tobacco goods is first wound around the outer periphery of the hollow mandrel 18, and is formed in the incomplete folding state which has a bottom. Thereafter, a group 14 of tobacco products is supplied to pass through the mandrel 18. At this time, the group 14 comes into contact with the bottom of the packaging material in an incomplete folded state, and is delivered to the holding pocket 21 together with the packaging material, and is held in the holding pocket 21 as a package body in a semi-wrapping state. The During such delivery, the holding pocket 21 moves toward the mandrel 18 and picks up the cigarette group 14 (see h in FIG. 3 of Patent Document 1). And after hold | maintaining the package body of a semi-wrapping state, it leaves | separates from the mandrel 18 and returns to the original position. At this time, the end of the half-wrapped packaging body located on the opposite side to the direction in which the holding pocket 21 moves is not closed by the packaging material, but is an open end. Cigarette products may jump out of the open end of such a package due to movement, vibrations associated with other machine operations, and the like.

Thus, in the state where the tobacco product has popped out, the remaining folding operation with respect to the packaging material becomes impossible. That is, when the turret with the holding pocket is rotated for this folding operation, the tobacco product that has popped out contacts the folding guide for the folding operation, and the tobacco product breaks, The folding guide may be damaged.
The present invention is intended to suppress the occurrence of the above-mentioned problems, and an object of the present invention is to provide a holding pocket for a turret type packaging machine that can reliably prevent an object to be packaged from popping out of the holding pocket. There is to do.

  In order to achieve the above object, the holding pocket of the turret type packaging machine of the present invention comprises a turret having a plurality of holding pockets, and a packaging body in a semi-wrapping state in which packaging with a packaging material is incomplete in the holding pocket. A turret type packaging machine that pushes and holds, and then completes the packaging of the packaging body with the rotation of the turret. When the packaging body is pushed into the holding pocket, the packaging body is viewed in the pushing direction, and only its rear end surface Is an open half-wrapping state, and after the package body is pushed in, the holding pocket moves in the pushing direction, and in the holding pocket of the turret type packaging machine, an opening that allows the packaging body in the half-wrapped state to be accepted A rectangular parallelepiped pocket body having an end, and when the package body is in the pocket body, the package body is pressed against the inner surface of the pocket body. It is characterized in further comprising a pressing means for applying a pressing force to attach (claim 1).

According to the holding pocket of the turret type packaging machine of claim 1, since the packaging body in a semi-wrapped state pushed into the pocket body is pressed against the inner surface of the pocket body by the pressing means, the packaging body is surely It is held in the holding pocket.
Specifically, the pocket body includes an upper wall and a bottom wall spaced in the radial direction of the turret, and two side walls spaced in the rotation direction of the turret, and the upper wall has a rectangular upper opening. And the pressing means includes a leaf spring disposed in the upper opening, and the leaf spring extends along the pushing direction and curves convexly toward the inside of the pocket body. A configuration is preferable (claim 2).

According to the holding pocket of the turret type packaging machine of claim 2, since the leaf spring is arranged in a convex shape toward the inside of the pocket body, the leaf spring presses the packaging body in the pocket body. Pressure can be applied.
Further, it is preferable that the leaf spring is fixed to the upper wall only at a base end opposite to the opening end side (Claim 3).

Specifically, the leaf spring further includes a distal end placed on the upper wall and an intermediate portion between the distal end and the proximal end, and the intermediate portion is inserted into the pocket through the upper opening. It is preferable to have a configuration that is immersed in the body (claim 4).
More specifically, the intermediate part is preferably a narrow part whose width dimension is equal to or slightly narrower than the width of the upper opening (Claim 5).

According to the holding pocket of the turret type packaging machine according to claims 3 to 5, the leaf spring as the pressing means has an intermediate portion (narrow portion) between its base end and tip end inserted into the upper opening of the pocket body. A pressing force is applied to the package in the pocket body at the intermediate portion (narrow portion).
Furthermore, it is preferable to further comprise a setting means for setting the amount of immersion of the leaf spring.

  According to the holding pocket of the turret type packaging machine of the sixth aspect, the immersing amount of the leaf spring can be set by the setting means, and the pressing force applied to the packaging body can be set within a suitable range.

  According to the first to sixth aspects of the present invention, since the pressing force is applied to the package body held in the holding pocket by the pressing means, the object to be packaged in the package body is also indirectly pressed. Therefore, it is possible to effectively prevent the packaged item from jumping out of the package in a semi-packaging state when the packaging material is folded. Therefore, generation | occurrence | production of inferior goods can be suppressed, improvement of production efficiency can be aimed at, and the failure of a packaging machine can also be prevented.

  In particular, according to the configuration in which the pressing means is a leaf spring, it is possible to suppress the pop-up of the packaged item with a relatively simple configuration, which contributes to the reduction of the manufacturing cost of the entire packaging machine.

Hereinafter, embodiments of a holding pocket of a turret type packaging machine according to the present invention will be described with reference to the drawings.
FIG. 1 shows a schematic configuration of a turret type packaging machine according to an embodiment.
This packaging machine 2 is used for soft package packaging of filter cigarettes, and includes a filter cigarette hopper 4, a cigarette filling device 6 disposed below the hopper 4, and a filter cigarette supplied from the cigarette filling device 6. A chain conveyor 8 that conveys a bundle of filter cigarettes, a rotary folding unit 10 that wraps a bundle of filter cigarettes by folding inner and outer packaging materials, and a transfer that transfers a filter cigarette package obtained by completing folding of the inner and outer packaging materials A turret 12 and a drying turret 15 for drying the package are provided.

The hopper 4 is continuously supplied with quality-inspected filter cigarettes from a filter attachment (not shown). The supplied filter cigarette is discharged from the outlet of the hopper 4 and supplied to the cigarette filling device 6 located below the hopper 4.
The cigarette filling device 6 projects toward the subsequent-stage chain conveyor 8 as a bundle 116 of three-stage stacked filter cigarettes in which 20 filter cigarettes supplied from the outlet of the hopper 4 are grouped.

  The chain conveyor 8 includes a plurality of transport pockets 23 and extends from the cigarette filling device 6 toward the rotary folding unit 10. The transport pocket 23 receives the filter cigarette bundle 116 protruding from the cigarette filling device 6, and the filter cigarette bundle 116 is transported by the chain conveyor 8 together with the transport pocket 23 and sequentially transported toward the rotary folding unit 10. The

The rotary folding unit 10 includes a temporary turret 16 for temporarily forming inner and outer packaging materials, and a sealing turret 19 coaxially adjacent to the temporary turret 16, and the sealing turret 19 is an inner packaging material. It is intended to fold the finish.
The temporary molding turret 16 forms a pair with a rotating wheel, a plurality of hollow mandrels 24 arranged at equal intervals in the circumferential direction on the rotating wheel, and each mandrel 24. And a plurality of sliders that are detachably provided.

  As shown in FIG. 2, the mandrel 24 is a hollow rectangular tube-shaped member having open ends 26 and 28 on both sides. One open end 26 is positioned on the chain conveyor 8 side, and the other open end 28 is positioned on the adjacent sealing turret 19 side. The slider 30 includes a rectangular parallelepiped slider head 32 and a rod 34 attached to the rear surface of the slider head 32. The slider head 32 has the same shape and the same size as the hollow cross section of the mandrel 24, and can be inserted into the mandrel 24. The rod 34 is connected to a drive device (not shown), and the slider head 32 can be inserted into and removed from the mandrel 24 by reciprocating in the longitudinal direction of the mandrel 24 by this drive device.

  For example, when the mandrel 24 is at the position a in FIG. 1, the slider head 32 is inserted into the mandrel 24 from one open end 26 as shown in FIG. The other opening end 28 is positioned. That is, the other open end 28 is closed by the slider head 32, and as a result, the other open end 28 of the mandrel 24 is formed as a temporary closed end. In this state, the mandrel 24 moves in the circumferential direction of the rotating wheel as the rotating wheel rotates.

On the outer periphery of the temporary molding turret 16, the inner packaging material supply device 20 that supplies the inner packaging material to the mandrel and the rotational direction of the temporary molding turret 16 are arranged at a stage subsequent to the inner packaging material supply device 20. An outer packaging material supply device 22 for supplying the outer packaging material to the mandrel is disposed.
The inner packaging material supply device 20 is disposed at a position b in FIG. 1 and supplies an inner packaging material such as an aluminum vapor deposition sheet as the inner packaging material toward the mandrel 24. The inner packaging material is obtained by cutting the inner packaging material web fed out from the web roll every predetermined length. Then, the obtained inner packaging material 38 is wound around the outer periphery of the mandrel 24 as the temporary molding turret 16 rotates, and protrudes from the other opening end 28 of the mandrel 24 as shown in FIG. And both ends thereof are overlapped with each other at the side wall 36 of the mandrel 24. Furthermore, one projecting portion of the inner packaging material 38 projecting from the opening end 28 of the mandrel 24 is folded, and the folding here forms the bottom of the inner packaging material 38 having a rectangular tube shape, and this bottom has left and right ears, It consists of upper and lower flaps 40 and 42 which are sequentially superimposed on these ears. Here, since the open end 28 of the mandrel 24 is closed by the slider head 32, the above-described ears and the upper and lower flaps 40 and 42 can be easily folded.

  The outer packaging material supply device 22 is disposed at a position c in FIG. 1 and supplies an outer packaging material such as a paper sheet toward the mandrel 24. The outer packaging material is obtained by cutting the web of the outer packaging material fed out from the web roll every predetermined length. Then, as shown in FIG. 4, the obtained outer packaging material 44 is wound around the outer periphery of the mandrel 24 around which the inner packaging material 38 has already been wound as the temporary molding turret 16 rotates.

The outer wrapping material 44 is wound in the same manner as the inner wrapping material 38, and the bottom is also formed on the outer wrapping material 44, and this bottom is overlapped with the bottom of the inner wrapping material 38. Here, the outer packaging material 44 is different from the inner packaging material 38 in that, in the case of the outer packaging material 44, both ends overlapped with each other and upper and lower flaps forming the bottom are glued together.
In this manner, the mandrel 24 is in a state in which the inner packaging material and the outer packaging material are fitted around the mandrel 24. Thereafter, the slider 30 is once pulled out from the mandrel 24.

On the other hand, the sealing turret 19 coaxially adjacent to the temporary molding turret 16 includes a rotating wheel and a plurality of holding pockets 51 respectively corresponding to the mandrels 24 of the temporary molding turret 16 on the rotating wheel. Yes.
As shown in FIG. 5, the holding pocket 51 has a rectangular parallelepiped shape and has a rectangular opening end 50. More specifically, the holding pocket 51 has an upper wall 52, a bottom wall 54, left and right side walls 56, 57 and an end wall 58, and the end wall 58 faces the open end 50.

  The upper wall 52 has a substantially rectangular shape as a whole, and a rectangular cutout recess 60 is provided at the edge on the opening end 50 side. This notch recess 60 allows passage of a folding guide member or the like (not shown) when the inner packaging material is folded. The finishing folding here means folding in the other protruding portion of the inner packaging material 38 in the same folding form as in the case of forming the bottom described above, whereby the closed upper end wall, that is, the sealing Is formed.

More specifically, the upper wall 52 includes a rectangular frame 53 and a leaf spring unit 64. The frame 53 forms a rectangular upper opening 62 at the center of the upper wall 52, and a leaf spring unit 64 is disposed in the upper opening 62.
As shown in FIG. 6, the leaf spring unit 64 is curved in a convex shape from the upper opening 62 into the holding pocket 51. Specifically, the frame 53 is formed such that the upper surfaces of the edges along the end wall 58 and the opening end 50 are formed as a rear slope 66 and a front slope 68, and the slopes 66 and 68 are inclined downward toward the upper opening 62. The leaf spring unit 64 is fixed in a state where the base end 64a is placed on the rear slope 66, and the tip 64b is placed on the front slope 68 so that the rear slope 66 and the front slope 68 are inclined. Accordingly, the abdomen facing the upper opening 62 is curved convexly toward the holding pocket 51. Therefore, when an article is inserted into the holding pocket 51 as will be described later, the leaf spring unit 64 can apply a pressing force to the article from above as indicated by an arrow A. Reference numeral 55 represents a flat surface located in the middle of the rear slope 66 and the front slope 68 in the frame 53.

More specifically, as is apparent from FIG. 7, the leaf spring unit 64 has a double structure in which two leaf springs are overlapped, and includes a sandwiching spring 70 and a set spring 72.
The clamping spring 70 has a length from the rear slope 66 to the front slope 68 of the frame 53, and the width thereof is equal to or slightly smaller than the width of the upper opening 62 except for the base corresponding to the rear slope 66. . That is, the pinching spring 70 has a narrow portion from the base portion to the narrow portion, so that the narrow portion of the pinching spring 70 can be inserted into the holding pocket 51 from the upper opening 62. It has become. In addition, a screw insertion through hole 74 is formed at one side end of the base of the clamping spring 70, and a notch 76 is formed at the other side end.

  On the other hand, the width of the set spring 72 is wider than the width of the upper opening 62. For this reason, the set spring 72 is not immersed in the holding pocket 51. The set spring 72 is shorter in length than the sandwiching spring 70 and overlaps with the sandwiching spring 70 from the base of the sandwiching spring 70 to a part of the narrow portion. The set spring 72 is also formed with a through hole 78 and a notch 80 at positions corresponding to the through hole 74 and the notch 76 of the holding spring 70, respectively.

  The set spring 72 is used to set the amount by which the narrow portion of the holding spring 70 is immersed in the holding pocket 51, that is, the amount of bending of the holding spring 70 to a predetermined value. That is, the set spring 72 holds a range extending from the base portion of the sandwiching spring 70 to a part of the narrow portion along the rear inclined surface 66 of the frame body 53, so that the bending amount of the sandwiching spring 70 as a whole is predetermined. Set to value.

Since the amount of bending of the clamping spring 70 is proportional to the pressing force, the pressing force decreases as the bending amount decreases. Accordingly, when the bending amount of the sandwiching spring 70 becomes a predetermined value or less, the necessary minimum pressing force cannot be secured. Therefore, in order to ensure the necessary minimum pressing force, the set spring 72 is used to secure the sandwiching spring 70. The amount of bending is regulated.
How to attach the holding spring 70 and the set spring 72 to the frame 53 will be described in more detail below.

First, as is apparent from FIG. 7, the holding pocket 51 includes the frame body 53 described above and a lower frame 83 that forms left and right side walls, a bottom wall, and end walls, and the sandwiching spring 70 and the set spring 72 are frame frames. It is attached to the body 53.
The rear slope 66 of the frame 53 has through holes 84 on both sides thereof, and step portions 86 are provided on both sides of the frame 53 at portions corresponding to the rear slope 66. The holding spring 70 and the set spring 72 have their base portions sequentially overlapped with the rear inclined surface 66, while only the front end portion of the holding spring 70 is placed on the front inclined surface 68 of the frame body 53, and is pressed by a pressing member 88 from above. Pressed. The pressing here is to hold the base portions of the holding spring 70 and the set spring 72 between the holding member 88 and the rear inclined surface 66 of the frame 53, so that the base portions of these springs 70 and 72 are formed on the rear inclined surface 66. It elastically deforms according to the inclination, and gives the above-mentioned curved shape to the holding spring 70.

Specifically, the pressing member 88 includes a leg portion 90 that matches the above-described stepped portion 86 on both sides thereof, and a through hole 92 and a screw hole 94 corresponding to each of the through holes 84 of the frame 53. Are arranged on the notches 76 and 80 side of the holding spring 70 and the set spring 72, and the screw hole 94 is arranged on the through holes 74 and 78 side of the holding spring 70 and the set spring 72.
The holding member 88 is fastened to the frame body 53 via bolts 96 and 98. Here, the bolt 96 is screwed into the screw hole 94 of the pressing member 88 from below the frame body 53 through the through holes 84, 74, and 78, whereas the bolt 98 is inserted from above the frame body 53 into the through holes 92 and 92. It penetrates the through hole 84 of the frame 53 through the notches 80 and 76 and is screwed into the lower frame 83 described above. That is, the bolt 98 is longer than the bolt 96 and also serves to fix the frame 53 to the above-described lower frame 83.

More specifically, as shown in FIG. 7, both side portions 59 and 61 of the frame 53 form part of the side walls 56 and 57 of the holding pocket 51, and the side portion 61 on the bolt 98 side The lower surface has a ridge 63, and the ridge 63 extends in the longitudinal direction of the side portion 61.
On the other hand, the side portion 67 of the lower frame 83 that forms the side wall 57 together with the side portion 61 has a groove 69 on its upper surface, and this groove 69 extends in the longitudinal direction of the side portion 67 and engages the ridge 63. Have a width. Therefore, the side portion 61 is joined to the side portion 67 by fitting the convex 63 to the groove 69 of the side portion 67, whereby the side portions 61 and 67 form the side wall 57 of the holding pocket 51. To do.

Here, two screw holes 71, 71 are formed in the bottom of the groove 69, and the above-described bolt 98 is screwed into one of these screw holes 71. Note that a bolt (not shown) is screwed into the other screw hole 71 through the frame 53, so that the frame 53 and the lower frame 83 are fastened to each other by two bolts.
The side portion 59 of the frame 53 forms a side wall 56 of the holding pocket 51 in cooperation with the side portion 65 of the lower frame 83, but a space is secured between the side portion 59 and the side portion 65. Has been. More specifically, as shown in FIG. 5, this interval forms a notch recess 100 located at the end of the side wall 56 on the opening end 50 side and a slit 102 extending in the longitudinal direction of the side wall 56, and these notch recesses. 100 and the slit 102 allow the insertion of a not-shown folding guide member or the like when the inner packaging material is folded as described above.

  As shown in FIG. 7, the end wall 58 has a trapezoidal shape and has a through hole 104 at the center thereof. The through hole 104 is inserted with a package (not shown) for discharging the package from the inside of the holding pocket 51 to the outside, ie, the package in which the inner packaging material has been folded, and the tip of the rod. Is equipped with a discharge head. The discharge head is positioned in the holding pocket 51 and forms a movable wall of the holding pocket 51.

  In addition, semicircular concave grooves 108 are respectively provided on the slopes 106 on both sides of the end wall 58, and a clamping member 112 is attached to these slopes 106 with bolts 114. The clamping member 112 has a concave portion 110 having a triangular cross section that matches the concave groove 108. A mounting rod (not shown) is mounted in each concave groove 108, and these mounting rods are fixed by the holding members 112 on the corresponding side. The mounting rod is connected to a driving device (not shown), and the holding pocket 51 can be moved forward and backward with respect to the mandrel 24 described above by the action of the driving device.

  Next, when the rotation further proceeds from the rotational state of the temporary molding turret 16 described above, and the mandrel 24 having the inner and outer packaging materials in the temporary molded state reaches the position d in FIG. One transport pocket of the conveyor 8 also reaches the d position, and at this d position, the transport pocket is positioned in the vicinity of one open end 26 of the mandrel 24. On the other hand, among the plurality of holding pockets 51 of the sealing turret 19, the corresponding holding pocket 51 is positioned in the vicinity of the other opening end 28 of the mandrel 24 through the mounting rod of the driving device described above. That is, at the position d, the transport pocket and the holding pocket 51 are arranged close to each other on the same line with the mandrel 24 interposed therebetween. In this state, the slider 30 once pulled out to the rear of the transport pocket advances toward the transport pocket, and pushes the filter cigarette bundle 116 in the transport pocket into the mandrel 24 as shown in FIG. When the slider 30 further advances and the filter cigarette bundle 116 abuts against the bottom wall of the inner and outer packaging materials in the temporarily formed state, the filter cigarette bundle 116 passes through the mandrel 24 with the inner and outer packaging materials. Therefore, as shown in FIG. 9, the filter cigarette bundle 116 is accommodated in the inner and outer packaging materials, and the filter cigarette package 118 in a semi-finished state is pushed into the holding pocket 51. At this time, the package 118 enters the holding pocket 51 against the pressing force of the leaf spring unit 64, that is, the holding spring 70. When the packaging body 118 comes into contact with the ejection head 120 of the ejection device positioned in the vicinity of the end wall 58 of the retaining pocket 51 and the packaging body 118 is completely accommodated in the retaining pocket 51, the retaining pocket 51. Retracts together with the package 118 in a direction away from the mandrel 24 and returns to its original position.

  In the holding pocket 51, as shown in FIG. 6, the clamping spring 70 applies a pressing force acting in the direction of arrow A to the package 118, so that the pressing force is also applied to each filter cigarette in the package 118. In addition, each filter cigarette is securely held in the holding pocket 51. For this reason, it is possible to effectively prevent the filter cigarette from jumping out from the package 118 before sealing due to the influence of vibration or the like due to the holding pocket 51 retracting to the original position or other mechanical operation.

After that, with the rotation of the rotating wheel of the sealing turret 19 on the semifinished package 118 held in the holding pocket 51, the finishing folding described above is performed, and the package is sealed.
The package that has been sealed is pushed out of the holding pocket 51 by the discharge head 120 of the discharge device and delivered to the transfer turret 12 in the subsequent stage shown in FIG. Then, such a package is further transferred to the subsequent drying turret 15, the glue used for the outer packaging material is dried, and a finished product of the filter cigarette package, that is, a cigarette package is obtained.

  The present invention is not limited to the above-described embodiment, and various modifications can be made. For example, in the present embodiment, a holding pocket using a leaf spring as the pressing means has been described, but an elastic body such as a coil spring or rubber may be used as the pressing means. In addition, the products to be packaged are not limited to tobacco products, and may be other products such as foods such as sweets.

It is a schematic block diagram of the turret type packaging machine which concerns on an Example. It is a perspective view which shows the mandrel which concerns on an Example. It is a perspective view which shows the state which winds an inner packaging material around the mandrel which concerns on an Example. It is a perspective view which shows the state which winds an outer packaging material around the mandrel which concerns on an Example. It is a perspective view which shows the holding pocket which concerns on an Example. It is sectional drawing which shows the holding | maintenance pocket which concerns on an Example. It is a disassembled perspective view which shows the structure of the holding pocket which concerns on an Example. It is a perspective view which shows the state which has pushed the bundle | flux of filter cigarettes into the mandrel which concerns on an Example. It is a perspective view which shows the state which has pushed the bundle | flux of filter cigarettes into the holding | maintenance pocket which concerns on an Example with the inner and outer packaging materials.

Explanation of symbols

2 Packaging machine 8 Chain conveyor 10 Rotary folding unit 12 Transfer turret 15 Dry turret 16 Temporary molding turret 19 Sealing turret 24 Mandrel 30 Slider 32 Slider head 34 Rod 50 Open end 51 Holding pocket 52 Top wall 53 Frame body 54 Bottom wall 56 Side wall 57 Side wall 58 End wall 60 Notch recess 62 Upper opening 64 Leaf spring unit 66 Rear slope 68 Front slope 70 Holding spring 72 Set spring 83 Lower frame

Claims (6)

A turret having a plurality of holding pockets is provided, and a packaging body in a semi-wrapping state in which packaging with an incomplete packaging material is pushed into and held in the holding pocket, and then the packaging of the packaging body is completed as the turret rotates. A turret type packaging machine,
When being pushed into the holding pocket, the packaging body is in a semi-wrapping state in which only the rear end face is opened in the pushing direction,
After pressing the package, the holding pocket moves in the pressing direction.
In the holding pocket of the turret type packaging machine,
A rectangular parallelepiped pocket body having an open end that allows reception of the package in the semi-wrapped state;
A holding pocket for a turret type packaging machine, comprising: pressing means for applying a pressing force for pressing the packaging body against the inner surface of the pocket body when the packaging body is in the pocket body. The pocket body is
A top wall and a bottom wall spaced in the radial direction of the turret;
Two sidewalls spaced apart in the rotational direction of the turret,
The upper wall is
Has a rectangular top opening,
The pressing means is
2. The plate spring according to claim 1, further comprising a leaf spring disposed in the upper opening, wherein the leaf spring extends along the pushing direction and curves in a convex shape toward the inside of the pocket body. Turret type packaging machine holding pocket.   The holding pocket of the turret type packaging machine according to claim 2, wherein the leaf spring is fixed to the upper wall only at a base end opposite to the opening end side. The leaf spring is
A tip placed on the upper wall;
And further comprising an intermediate portion between the distal end and the proximal end,
The holding pocket of the turret type packaging machine according to claim 3, wherein the intermediate portion is immersed in the pocket body through the upper opening.   The holding pocket of the turret type packaging machine according to claim 4, wherein the intermediate portion is a narrow portion whose width dimension is equal to or slightly narrower than the width of the upper opening.   The holding pocket of the turret type packaging machine according to claim 4 or 5, further comprising setting means for setting an immersion amount of the leaf spring.

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