JP3717314B2 - Pusher - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a pusher for extruding laminated products as a unit.
[0002]
[Prior art and problems to be solved by the invention]
The soft product 60 in a laminated state is sandwiched between a pair of insertion plates 58 whose ends are inserted into the bottom intake of the packaging bag 57 and extruded to the inside of the packaging bag 57 by the pusher 61 for extrusion. There is a stuffing device 52 [FIG.
[0003]
According to the filling device 52, the stacked product 60 is disposed between the insertion plates 58 in a state where the product 60 is compressed and compressed with a large pressure, so that the reaction force of the product 60 against the pressure is a pair of insertion plates. It acts as a force that pushes 58 wide, and a gap 65 is formed between the side surfaces of the pusher 61.
[0004]
For this reason, the product 60 positioned at the end of the stacked state is retracted so as to receive frictional resistance from the insertion plate 58 and enter the gap 65, and the stacked state is disturbed and it becomes difficult to pack, or the packaging bag 57 In some cases, the product 60 at the shifted end portion is bitten when the product is sealed.
[0005]
Therefore, as shown in FIG. 4B, a plate-like elastic member 62 made of rubber or the like is attached to the tip portions on both sides of the pusher 61, and this tip is brought into contact with the inner surface of the insertion plate 58 so that the gap Even if the laminated product 60 is extruded while closing the block 65, the elastic member 62 remains deformed due to the curved deformation of the elastic member 62, and the elastic member 62 slides on the inner surface of the insertion plate 58. Wear out.
[0006]
An object of the present invention is to provide a pusher that can extrude products in a laminated state as one body without causing a shift of the end product, and can easily pack a large number of products into a packaging bag.
[0007]
[Means for Solving the Problems]
The present invention is a pusher that puts a large number of stacked products, which are sandwiched between a pair of insertion plates and guided to a packaging bag, into the packaging bag, and has an extruded surface widened in the stacking direction of the products at the tip portion thereof. A side guide member that protrudes and retracts to adjust the protrusion amount of the side guide member so as to follow the deformation of the insertion plate and maintain the contact state with the insertion plate. The above-mentioned object is achieved by providing a pusher for extruding the laminated product as a whole.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
As shown in FIG. 1, the pusher 10 according to a preferred embodiment of the present invention pushes a large number of products (for example, disposable diapers) 60 into a packaging bag 57 by extruding them in a direction perpendicular to the stacking direction while maintaining the stacked state. As shown in FIG. 2, the product 60 in a state of being laminated by the extrusion surface 11 is extruded as a unit.
[0009]
The pusher 10 includes a box-shaped pusher body 12 having a rectangular pushing surface 11 substantially in front of a cross-sectional shape of a conveyance path (FIG. 1) 59 formed by a pair of insertion plates 58 and a front end of the pusher body 12. It is comprised with a pair of side guide apparatus 13 which widens the width | variety of the extrusion surface 11 provided in the part.
[0010]
The side guide device 13 connects the side guide member 15 and a side guide member 15 accommodated between a rear surface of the side end portion of the pushing surface 11 and a bracket member 14 provided at a side end portion of the pusher body 12. The air cylinder 17 is used to project the side guide member 15 laterally or to be accommodated on the back side of the pushing surface 11. Since the side guide member 15 protrudes when air enters the air cylinder 17, the protruding amount changes due to the pressure from the side due to the elasticity of the air. Therefore, when disposed in the transport path 59, both end surfaces of the two side gad members 15 follow the deformation of the insertion plate 58 and maintain a contact state.
[0011]
In order to pack the stacked product 60 in the packaging bag 57 using the pusher 10 of this embodiment, a side guide member is provided behind the product 60 arranged in a pressurized state at the rear end portion of the conveyance path 59. 15 is retracted and accommodated on the back side of the extrusion surface 11, and the pusher 10 which does not get in the way is arranged so as to be inserted from above (FIG. 3A). Prior to disposing the stacked product 60 and the pusher 10 at the rear end portion of the conveyance path 59, the front ends of the pair of insertion plates 58 forming the conveyance path 59 are used as bottom intakes of the packaging bag 57. Insert and arrange in advance.
[0012]
Next, the laminated product 60 is extruded toward the packaging bag 57 along the conveyance path 59 (FIG. 3B). In this step, the side guide member 15 is protruded laterally so that the tip end surface contacts the insertion plate 58, and the gap 65 between the extrusion surface 11 and the insertion plate 58 is closed. Since the laminated product 60 is pressurized and disposed in the conveyance path 59 in a compressed state, the reaction force of the product 60 exerts a force to expand the pair of insertion plates 58. The insertion plate 58 is bent and the width of the conveyance path 59, that is, the gap 65 between the extrusion surface 11 and the insertion plate 58 is expanded as it goes to the tip.
[0013]
As described above, the side guide member 15 is protruded by putting air into the air cylinder 17. Therefore, the amount of protrusion changes according to the shape of the insertion plate due to the elasticity of air, and the gap 65 is closed. Thereby, even if a width | variety changes, the product 60 of a lamination | stacking state can be continuously pushed.
[0014]
When the stacked product 60 is pushed into the interior of the packaging bag 57, only the insertion plate 58 is retracted from the bottom intake of the packaging bag 57 while only the pusher 10 is projected from the front end of the conveyance path 59 and held in the packaging bag. [FIG. 3 (c)]. At this time, the side guide member 15 immediately expands and projects to the full inner surface of the bag due to the air in the air cylinder 17, so that the product 60 in the laminated state cannot be removed from the pressurized state by the insertion plate 58. Retained.
[0015]
When the retracting of the insertion plate 58 from the packaging bag 57 is completed, the air in the air cylinder 17 is discharged, and the side guide member 15 is retracted behind the pushing surface 11. When the side guide member 15 is retracted, the pusher 10 is retracted from the bag [FIG. 4 (d)], and is further moved above the rear end of the conveyance path 59 to extrude a new stacked product.
[0016]
The packaging bag 57 packed with the laminated product 60 is hermetically sealed at the bottom inlet by the interior back seal part (FIG. 1) 20 to become a packed product 63 filled with a large number of products.
[0017]
By repeating the above steps, the stacked products 60 are sequentially packed in each package 57.
[0018]
【The invention's effect】
According to the pusher of the present invention, since the side guide member capable of advancing and retreating to widen the extrusion surface in the width direction following the deformation of the insertion plate is provided, the laminated state can be obtained without causing the displacement of the product located at the end. Many products can be easily packed inside the packaging bag by extruding the products as a unit.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view of a packaging apparatus employing a pusher according to the present invention.
FIG. 2 is a plan view illustrating the configuration of a pusher according to an embodiment of the present invention.
3A is a schematic plan view for explaining a step of inserting a pusher into a conveyance path, FIG. 3B is a schematic plan view for explaining a step of extruding a stacked product by the pusher, and FIG. 3C is a pusher. (D) is a schematic plan view illustrating the step of returning the pusher to the upper side of the conveyance path.
FIGS. 4A and 4B illustrate a situation in which a laminated product is pushed out by a conventional pusher. FIG. 4A is a schematic plan view, and FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Pusher 11 Push-out surface 12 Pusher main body 13 Side guide apparatus 15 Side guide member 17 Air cylinder 50 Packaging apparatus 57 Packaging bag 58 Insertion plate 59 Conveyance path 60 Product

Claims (3)

A pusher that puts a large number of stacked products that are sandwiched between a pair of insertion plates and guided to a packaging bag into the packaging bag, and projects at the tip of the pusher to widen the extrusion surface in the product stacking direction. And a side guide member that retreats, and adjusting the amount of protrusion of the side guide member so as to follow the deformation of the insertion plate and maintain the contact state with the insertion plate . A pusher that extrudes the product as a unit. The pusher according to claim 1 , wherein the pusher further widens after passing through the pair of insertion plates. The pusher according to claim 1 or 2, wherein the side guide member is connected to an air cylinder, and protrudes and retracts by the air cylinder.

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