CZ297557B6 - Device for opening flat hose-like linear packages and subsequent insertion of rod-like objects therein - Google Patents

Abstract

In the present invention, there is disclosed a device for opening flat hose-like linear packages (O) and subsequent insertion of rod-like objects (T) therein wherein the device is provided with a pair of segments (5) mounted in swingable manner on a carrier (2) and having at their ends beaks (53) wherein tubular cavities (51) of the segments (5) are directed against each other.

Description

Technical field

The invention is a device for opening flat tubular segmented packages and subsequently inserting rod-shaped articles, for example pencils.

BACKGROUND OF THE INVENTION

The packaging of the goods in line segments, i.e. in advance for the final length of the cut packages, is carried out manually. An operation that greatly lengthens the packaging process is to open the flat tubular segmented packages and then insert a rod-like object, such as a pencil. Such a wrapper is in the form of a flat tube, the opposing walls of which, with respect to the material used, which is a plastic foil, are electrostatically abutting or the cut edges are joined together already during cutting of the insulating plastic and does not dissipate the heat generated by the heat.

The packaging of the goods into the tubular packaging is therefore carried out by machine into a continuous tubular belt which is unwound from the disc magazine and after partial packaging the used part with the packaged goods is separated so as to guarantee accessibility of the opening in the continuous tubular belt. The sensitivity of this operation renders such devices fail. Therefore, in other devices, the tubular package is formed immediately prior to packaging. A flat strip is unwound from the disc magazine, which is welded longitudinally to allow filling of the resulting tubular package from above. None of the machinery is suitable for wrapping rods of constant length in packages of constant length, where the package carries information which must be completely on the package only once. For goods where there is no such requirement, the information on the packaging occurs in a shorter section, usually less than half its length. This ensures that one complete and uninterrupted information remains on the packaging.

Such a product is, for example, a pencil. Where a heat-shrinkable plastic film is used as a flat tubular segmented package. The foil, which can be made in an arbitrary print area using modern graphic techniques and subsequently converted into a hose line shape, will replace the previously used screen printing, which was of low productivity and low resolution. Although it is a finish of a pencil or other rod-like object, the package still remains, even if it is an integral part of the article to be wrapped, after being shrunk.

The essence of the solution

The above-mentioned drawbacks are eliminated by a device for opening flat tubular segmented packages and subsequently inserting rod-shaped articles. A pair of beak-terminated segments is pivotally mounted on a carrier connected to the frame. The cavities of the segments face each other. A flat tubular segmented sleeve is placed on the beaks of the pair of segments. The rod-shaped object can then be inserted into the cavity formed by the tube-shaped pair of segments and further into the enclosed package without compromising or damaging it.

If the position of the bottom of the segments is defined by a stop, then the package is adequately opened before the rod-shaped object is inserted into the resulting tubular cavity of the segments.

In order to facilitate the insertion of the rod-shaped articles into the tubular cavity of the segments, it is suitable to widen the tubular cavities on the side opposite the beaks accordingly and thereby create a lead-in.

-1 CZ 297557 B6

The mechanical insertion of the rod-shaped articles from the container, which is located on the side opposite the beaks, allows a retractable plunger whose axis coincides with the axis of the tubular cavities.

If the carrier is adjustable relative to the frame parallel to the axis of the tubular cavities, this will allow the beaks to remain in the package until the rod-shaped object is finally inserted. By holding the package throughout the insertion of the rod-shaped article, it is prevented from collapsing the packed rod-shaped article. Upon insertion of the carrier, the carrier performs a reciprocating movement, thereby removing the beaks from the package.

For better guidance of the rod-like objects between the segments into the tubular cavities, it is suitable that a guide sleeve is provided between the container and the carrier.

Overview of the drawings

Fig. 1 shows the overall schematic view of the device, Fig. 2 shows the same general view with the rod-shaped object being inserted into the package and Fig. 3 shows the detail of the beak segments in two working positions before the package is fully opened. .

DETAILED DESCRIPTION OF THE INVENTION

On the frame 1 there is a magazine 4, in which case there is a conveyor supplying the rod-shaped articles T. A feeder 6 is arranged below the magazine 4, which removes the individual rod-shaped articles T1 from the magazine 4 into the raised position of the rod-shaped article T2. A linear motor 7 is rigidly connected to the frame 1, from which extendable guides 71 together with the carrier 2 extend parallel to the rod-shaped object T2. The carrier 2 extends upwards and is supported by a pair of segments 5 on pins 21. The segments 5 are terminated by beaks 53, The tubular cavities 51 of the two segments 5 face each other. The position of the lower segment 5 is defined by a stop 3, from which only the rod is shown for illustration. The tubular cavities 51 are widened on the side opposite to the beaks 53 and form an inlet 52. The cartridge 4 includes a plunger 41 whose axis coincides with the axis of the cavities 51. A guide sleeve is mounted on the frame 1 for better guidance of the rod-shaped object T3. 8, the opening of which is coaxial with the tubular cavities 51.

The rod-shaped articles T1 are fed by the indicated container 4. In the position lying below the path of the plunger 41, the rod-shaped article T1 is lifted to a position coincident with the axis of the plunger 41 by the feeder 6. By this. the wrapper O is mounted on the beaks 53 of the segments 5 with the lateral displacement of the carrier 2 towards the wrapper O. This lateral displacement of the carrier 2 relative to the frame 1 is due to the linear motor 7. The bottom of the segments 5 has the beak position 51 defined by the appropriate adjustment of the stop 3 defining the lower segment 5 around its pin 21, depending on the size or type of wrapper O used. This opens the wrapper O and is ready to insert a rod-shaped object T3 which has meanwhile approached through the guide sleeve 8 into the tubular cavities 51 of the segments 5. forming the lead 52. Another by moving the rod-shaped object T3 between the segments 5, the two segments 5 are rotated around the pins 2L. This simultaneously opens the package O required for the insertion of the rod-shaped object T3. Throughout the insertion process, the beaks 53 open the package O, thereby holding it at the same time and preventing it from accumulating under the action of frictional force from the movement of the rod-shaped object T3 in the package O. The reciprocating movement of the carrier 2 by the linear motor 7 causes the beaks 53 to be ejected. together with the rod-shaped object T removed for further handling. Upon return of the carrier 2 to the initial position, the plunger 41 also performs a reciprocating movement. This allows the force to be applied to the segments 5, which are returned to the starting position by the self-weight due to the off-axis bearing of the pin 21. If a heat-shrinkable film is used as the wrapper O, the next operation is undoubtedly manipulation

This may involve the application of heat to an already wrapped rod-shaped object T, which may be a pencil. Meanwhile, the plunger 41 has returned to its initial position as well as the feeder 6 and another of the rod-shaped articles T1 is ready for handling and packaging.

Claims (6)

PATENT CLAIMS An apparatus for opening flat tubular segmented packages and subsequently inserting rod-shaped articles, characterized in that on a carrier (2) connected to the frame (1) a pair of segments (5) terminated by beaks (53), whose tubular cavities ( 51) are directed against each other. Device according to claim 1, characterized in that the position of the lower segment (5) is defined by a stop (3). Apparatus according to claim 1 or 2, characterized in that the tubular cavities (51) on the side opposite the beaks (53) by extension form haunches (52). Device according to one of Claims 1, 2 or 3, characterized in that on the side opposite to the beaks (53) there is a magazine (4) of rod-shaped articles (T) provided with a retractable plunger (41) whose axis coincides with the tubular axis. cavities (51). Device according to one of claims 1, 2, 3 or 4, characterized in that the support (2) is adjustable relative to the frame (1) parallel to the axis of the tubular cavities (51). Device according to one of claims 1, 2, 3 or 4, characterized in that a guide sleeve (8) is provided between the container (4) and the carrier (2), the opening of which is coaxial with the tubular cavities (51). .