JPS609123Y2 - Wet towel packaging device - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a wet towel packaging device.

As is well known, wet towels are wrapped in a spirally wrapped towel and then wrapped in a plastic film, but in this case, if the bag diameter of the synthetic resin film is too large and there is a large gap between the towel and the outer circumference of the towel, the towel will become spirally wrapped. The towel loses its shape and looks unsightly, and it also gives an unhygienic feeling due to poor processing control. Therefore, it is preferable to wrap the towel tightly from the outside to prevent the spiral shape from deforming. For this reason, in the past, the amount of synthetic resin film fed was adjusted each time according to the towel spiral diameter, which changed each time the towel fabric and size changed. If the amount of synthetic resin film fed is small, the machine will stop or be damaged, so we assume the thickest towel diameter and feed the synthetic resin film accordingly. Currently, the amount has to be adjusted, which is not only really troublesome but also inefficient.

The present invention eliminates such drawbacks, provides a device that can immediately adapt to the diameter of the individual spirals of the towel, eliminates wasteful gaps between the towel and the packaging film, and makes it possible to package towels that do not lose their shape. It was designed for a purpose.

Referring to FIG. 1, which shows an example of implementation, the explanation will be as follows: 1.
The numerals 1' are sandwiching plates each having an inverted cross section, and are provided facing each other inwardly, and have a width larger than that of a synthetic resin film for packaging.

Reference numeral 2 designates a pivot shaft that is inserted and loosely fitted in the lower end side of the sandwiching plate 1 in the lateral direction.

Reference numeral 3 denotes a tilting shaft that is inserted laterally into the sandwiching plate 1 at approximately the middle position in the vertical direction.

Reference numeral 4 denotes a tilting rod that is loosely fitted into the groove of the support base 5 so as to be slidable laterally toward the rear side (rightward in FIG. 1) of the sandwiching plate 1, The tilting shaft 3 is loosely fitted.

Reference numeral 6 denotes a plate cam provided at a position attached to one outer end of the tilting link 4.

Reference numeral 7 denotes a drive shaft which is laterally supported at right angles to the tilting link 4 and through which the plate cam 6 is inserted and wedged.

8 is a crank provided at one end of the driving shaft 7.

Reference numeral 9 is a joint that transmits the movement of the crank 8 upward.

Reference numeral 10 denotes a gear 12 in which the upper end side of the connecting node 9 is pivoted at a position eccentric from the rotation center axis 11.

13 is a film feeding gear meshed with the gear 10.

Reference numeral 14 denotes a film feed roller fixed to the same rotating shaft as the film feed gear 13.

Reference numeral 15 denotes a film nipping roller rotatably provided in parallel with and close to the film feed roller 14 .

Reference numeral 16 denotes a welded cut portion provided above the sandwich plate 1' in parallel with the lateral surface of the sandwich plate 1'.

Reference numeral 17 denotes a heater built into the welding/cutting section 16, and 18 denotes a cutting blade that linearly projects laterally from the inward inner surface of the welding/cutting section 16.

Reference numeral 19 denotes a support stand provided above the clamping plate 1 in a horizontal direction substantially parallel to the lateral surface of the clamping plate 1, one above the other.

Reference numeral 20 denotes a cutting contact portion (for example, made of sponge material) that is loosely fitted in the support base 19 so as to be slidable in the left-right direction (left-right direction in FIG. 1).

Reference numeral 21 denotes a cutting rod provided laterally on the back side (right side in FIG. 1) of the cutting abutting part 20, and one end thereof is engaged with the back side of the cutting abutting part 20.

Reference numeral 22 denotes a crank in which the other end of the cutting rod 21 is pivoted at an eccentric position from the center of rotation.

23 is a sprocket wedged on one end of the driving shaft 7;
It is wound around the sprocket 24 which is wedged on the rotating shaft of the crank 22 with a chain 7.

Reference numerals 25 and 25 designate guide rollers provided in the horizontal direction parallel to the welding and cutting portion 16 on the left and right above the intermediate position between the welding and cutting portion 16 and the cutting contact portion 20 facing inward.

26 is a guide roller 25 located outside the guide roller 25;
, and are film feed rollers that are rotatably provided approximately parallel to each other.

27 is a sprocket wedged on one end of the rotating shaft of the film feed roller 26.

Reference numeral 28 denotes a sprocket wedged to one end of the rotating shaft of the film feed roller 14, and the sprocket 27 and the checker 7
Wrap it around.

Reference numeral 29 denotes a film nipping roller rotatably provided below the film feed roller 26 in parallel with and close to the film feed roller 26.

Reference numeral 30 denotes a film roll in which a synthetic resin film (hereinafter referred to as a film) is spirally wound around the outside of the film feed roller 26 in parallel with the film feed roller 26.
The film is passed between the film holding roller 29 and the guide roller 25, and then hung down in a U-shape between the opposing sandwich plates 1 and 1' at the bottom, and then further wrapped around one of the guide rollers 25. After the film is passed between the film nipping roller 15 and the film feeding roller 14, the film nipping roller 1 is placed on the outside of the film nipping roller 15.
The film roll 31 is rotatably supported spirally in parallel with the film roll 31.

The other reference numeral 32 is a towel. Because of this configuration, the towel 32 is dropped into a synthetic resin film suspended in a substantially U-shape between the sandwiching plates 1 and 1', and this signal is transmitted using, for example, a known phototube (not shown). catch and
When the driving shaft 7 is rotated, in this case, the connecting joint 9 is rotated by the crank 8.
When the gear 10 is set in a position where it makes a half-rotation from the top to the bottom, the gear 10 rotates clockwise as the connecting joint 9 descends, and the film feed gear 13 rotates counterclockwise to feed the film. Since the feed roller 14 also rotates counterclockwise, the film sandwiched by the film nipping roller 15 is sent inward, and furthermore, the rotation of the film feed roller 14 is transferred to the film feed roller 26 on the opposite side via a sprocket 28 and a sprocket 27. Since the film is rotated counterclockwise, the film is fed inward from the film roll 30 on the opposite side, and the film is fed from the left and right to the center, so that the film is fed into the film as shown in FIG. The towel 32 (still inside the film) is reliably lowered through the clamping plate 1.1', and at the same time, the plate cam 6 also rotates due to the rotation of the driving shaft 7, and the tilting rod 4 moves inward. (to the left in Figure 1),
Since the upper part of the clamping plate 1 is tilted inward, the upper ends of the clamping plates 1 and 1', which are bent inwardly, are closed to clamp the film, as shown in FIG. When it rotates 180 degrees from the top end position and starts rising from the bottom end position, the connecting node 9 rises in the opposite direction, so the gear 1
0 rotates counterclockwise, the film feed gear 13 rotates clockwise, the film feed roller 14 and the film feed roller 26 rotate in the opposite direction, and U
Since the hanging film is rolled up from the left and right sides, the towel rises in the opposite direction, and the upper end of the outer periphery is attached to the lower surface of the clamping plates 1, 1' as shown in FIG.

In addition, in this case, as the driving shaft 7 rotates, the sprocket 23 wedged at one end and the sprocket 24 interlocked with the sprocket 24 by the chino also rotate, so the crank 22 causes the cutting contact to occur via the cutting rod 21. The part advances inward;
Since the film comes into strong contact with the cutting blade 18, if the heater 17 in the welding cutting section 16 is heated, the film will be welded and cut at this position. As shown, the film falls downward, and the center part of the film fed out from the left and right sides is welded to the cutting blade 1.
While waiting for the next towel to be supplied and dropped, the clamping plate 1 and the cutting abutment part 20 are rotated by the plate cam 6 and the crank 2, respectively, as the driving shaft 7 rotates, contrary to the above.
It is opened by the action of 2 to prevent the next towel from falling.
By dropping the next towel there and repeating the above-mentioned operation, it becomes possible to successively wrap towels as wet towels.

Further, as an example of another embodiment, as shown in FIG. 8, gears 35 and 36 are pivotally attached to the opening/closing center shafts of the lower ends of the clamping plates 33 and 34, and when they are engaged, the gears One of the clamping plates 34 is opened and closed using the reverse rotation of the gears.
The influence is transmitted to the other one of the clamping plates 33 in a doubled manner, and the opening/closing force is more expanded. If the towel is loosely fitted into the bed 37 in which a dovetail groove is carved, and is structured to be slidable in the vertical direction, it is possible to further promote the movement of the upper part of the outer periphery of the towel in contact with the clamping plate surface.

Therefore, when the present invention is implemented, the film is held from the left and right sides with a holding plate with an inverted cross section, and then the film is rolled up until the upper part of the outer circumference of the towel comes into contact with the lower side of the upper horizontal surface of the holding plate. Since welding and cutting are performed after the towel is squeezed up, there is no gap between the outer periphery of the towel and the film, regardless of the size of the towel diameter, and the film is held between the film feed roller 14 and the film nipping roller 15. By adjusting the force or by installing, for example, a known friction coupling device on the rotating shaft that transmits power from the film feed gear 13 to the film feed roller 14, the towel can be kept in a tightly compressed state without fear of tearing the film. This invention has the effect of efficiently wrapping wet towels in a state where the film is carefully squeezed and tightly wrapped in a towel.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an example of the implementation of the present invention, and Figs. 2, 3, 4, 5, 6, and 7 are front views showing the operating states of the main parts of the invention. The schematic drawings, FIGS. 8 and 9, show examples of other embodiments. 1.1'...Pinch plate, 2...Pivot, 3
......Tilt axis, 4......Tilting rod, 5.
...Support stand, 6...Plate cam, 7...
...Driving shaft, 8...Crank, 9...
Connecting node, 10... Gear, 11... Rotation center shaft, 12... Pivoting, 13... Film feeding gear, 14... ...Film feed roller, 15...Film holding roller 16...
...Welding cutting part, 17...Heater, 18
...... Cutting blade, 19... Support stand, 20.
..... Cutting contact part, 21 ..... Connecting rod for cutting,
22...Crank, 23...Sprocket, 24...Sprocket, 25...
・Guide roller, 26...Film feed roller 27...Sprocket, 28...
Sprocket, 29...Film holding roller, 30...Film roll, 31...
Film roll, 32...Towel, 33...
・・・Pinch plate, 34...Pinch plate, 35...
...Gear, 36...Gear, 37...Bed.

Claims (3)

[Scope of utility model registration request] (1) Holding plates 1 and 1', each having an inverted cross-section, are provided facing inward with the lower part serving as a fulcrum, and a welded cut portion is provided above the holding plate 1°1', and a welded cut portion is provided above the holding plate 1゜1'. Film feed roller 26 and film feed roller 14 at left and right positions
The sandwiching plates 1.1 are provided facing each other on the left and right by winding them around each other so as to interlock their rotations, and sandwiching the film from above and below with sandwiching rollers, and facing the central part of the film.
A crank 8 with a driving shaft 7 hanging in a substantially U-shape and laterally supported on the rear side of the clamping plate 1, and a connecting joint 9 vertically pivoted at one end of the driving shaft 7 is provided. Provided, articulating clause 9
For film feeding, the upper end side is eccentrically attached to the rotating shaft 11 of a gear 10 provided at a position close to the film feeding roller 14, and the gear 10 is pivotally attached to the rotating shaft of the film feeding roller 14. A crank 22 that meshes with the gear 13 and engages with the cam 6 and the drive shaft 7 is provided on the driving shaft 7 of the crank mechanism, and one end side of the connecting rod 4 for tilting is brought into contact with the cam 6, and the clamping plate is Loosely fit the other end into 1,
The wet towel packaging device is characterized in that one end of the cutting rod 21 of the crank 22 is engaged with the cutting abutting part 20 of the welding and cutting section to tighten and weld and cut the towel package upward. (2) The wet towel packaging device according to claim 1, which is a utility model registration, characterized in that gears are respectively attached to the opening/closing center shafts of the lower ends of the sandwiching plates 1, 1' and mesh with each other. (3) Utility model registration claims 1 or 2, characterized in that the lower end bases of the clamping plates 1, 1' are slidably and loosely fitted into the bed 37 in which a dovetail groove is carved. wet towel packaging equipment.