JP6579792B2 - Shredder for plastic film - Google Patents

Description

  The present invention relates to a plastic film shredder that cuts a plastic film into pieces.

  In recent years, printing marks remain on used ink ribbons in printers that use ink ribbons, and shredding is performed to prevent leakage of personal information and confidential information. Effectively removing the clogging of the cutting blade caused by the melting and solidification caused by the heat when cutting the scraped ink ribbon scrap when the plastic film such as the used ink ribbon is shredded with a shredder. Is desired.

  2. Description of the Related Art Conventionally, an apparatus described in Patent Document 1 below is known as an apparatus for cutting a used ink ribbon. Japanese Patent Application Laid-Open No. 2004-228561 cuts an ink ribbon to be cut with a rotary guide member and a rotary tearing blade via a feed roller, and an ink ribbon that is entangled with the tearing blade by electrostatic contact by rotating the static eliminating brush to the rotary tearing blade. It has a configuration in which a piece is cut off at the bottom.

JP 2011-050938 A

  However, in the apparatus of Patent Document 1, even if the ink ribbon piece entangled with the rotary tearing blade can be removed by the static eliminating brush, the ink is generated between the rotary tearing blade and the guide rotating member by frictional heat during cutting. The ribbon piece melts and solidifies, causing clogging of the rotary tearing blade and guide rotating member, and there is a problem that the cutting operation must be stopped and waiting to be peeled off by cooling. Even if the ribbon piece is scraped off by the static eliminator brush, there is a problem that the ink ribbon piece entangled with the guide rotating member due to static electricity cannot be scraped off, resulting in clogging of the waste, and this means cutting with a pair of cutter rollers. The same applies to the case of cutting other plastic films as well as the ink ribbon.

  Accordingly, the present invention has been made in view of the above problems, and is a shredder for plastic film that effectively removes clogging due to static electricity of film waste and clogging at the cutting portion caused by melting and melting due to heat during cutting of film waste. The purpose is to provide.

In order to solve the above-mentioned problems, the invention of claim 1 is a plastic film shredder that drops and collects film scraps obtained by cutting a plastic film , and rotates between a pair of cutter rollers spaced by a cutter blade. the film and rotary cutting unit for strips by being cut and provided movable in a horizontal direction below the vicinity of the rotating cutting section comprises a removal plate, after a predetermined time of cutting by the rotary cutting unit by the The film debris that adheres to the cutter roller as a result of melting and melting due to heat at the time of cutting is configured to remove debris from the surface of the cutter roller by moving the removal plate in the horizontal direction .

  In invention of Claim 2, when removing the said film waste adhering to the said rotation cutting part by the said waste removal means, it is set as the structure provided with the ventilation means which blows and cools air with respect to the said rotation cutting part.

According to the first aspect of the present invention, the plastic film to be supplied is cut by rotation between a pair of cutter rollers in which the cutter blades of the rotary cutting part are arranged at intervals , and the rotary cutting part is melted by heat at the time of cutting. the deposited film debris, and after a predetermined time of cutting, to move the removing plate horizontally debris removal means comprises a removal plate provided movably in the horizontal direction below the vicinity of the rotating cutting section the By adopting a configuration that removes from the surface of the cutter roller, it is possible to effectively remove the clogging at the rotary cutting portion caused by the clogging of film dust due to static electricity and the melting and melting due to heat at the time of cutting the film waste. Is.

  According to the second aspect of the present invention, when the film scrap by the scrap removing unit is removed from the rotary cutting unit, air is blown by the blowing unit to the rotary cutting unit to be cooled, thereby the film scrap. Debris clogging at the rotary cutting part can be improved more effectively by forced cooling by air blowing, and can be removed more effectively.

It is a whole block diagram of the shredder for plastic films which concerns on this invention. It is explanatory drawing of the waste removal means of FIG. It is cutting explanatory drawing of the shredder for plastic films of FIG. It is explanatory drawing (1) of the waste removal operation | movement in the shredder for plastic films of FIG. It is explanatory drawing (2) of the waste removal operation | movement in the shredder for plastic films of FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In this embodiment, the plastic film to be cut is described as an ink ribbon used in a printer, but the present invention can also be applied to a roll-shaped plastic film or a sheet-shaped plastic film on which information is described.

  FIG. 1 is an overall configuration diagram of a plastic film shredder according to the present invention, and FIG. 2 is an explanatory diagram of the debris removing means of FIG. FIG. 1A is an overall perspective view of a shredder for plastic film, and FIG. 1B is a schematic sectional view. In FIG. 1A, a plastic film shredder 11 stores and recovers a roll-shaped ink ribbon (plastic film) used in a printer as ink ribbon waste (film waste) by fragmentation. It is configured to have a supply unit 12 and a cutting body 13 that continuously supply a ribbon, and the supply unit 12 is positioned so as to be separable from the cutting body 13.

  A door 14 is provided on the front surface of the cutting main body 13 and is opened in order to attach and remove the cutting piece storage bag holder and to operate a scrap removing means described later. In addition, a receiving portion 15 that receives a continuous ink ribbon supplied from the supply portion 12 is formed on the upper surface of the cutting body 13, and a power switch 16 and an operation panel 17 are provided at predetermined positions.

  Inside the cutting body 13, a cutting area 18 </ b> A continuous with the receiving part 15 and a cutting piece storage area 19 are provided below the cutting area 18 </ b> A. A front area 18B formed by the second front cover 18B-2 is provided on the front side of the cutting area 18A via the first front cover 18B-1, and the first rear cover 18C-1 is provided on the back side. A rear side region 18C formed by the second rear cover 18C-2 is provided.

  In the cutting area 18A, a cutter unit 21 which is a rotary cutting unit including a pair of cutter rollers 21A and 21B is disposed below the receiving unit 15, and debris is disposed below the cutter unit 21 (cutter rollers 21A and 21B). Removal means 24 is provided. Further, a cutting piece storage bag holder 23 in which a cutting piece storage bag 22 is set in the cutting piece storage area 19 is mounted by the engaging portion 20 or the like.

  As shown in FIG. 2A, the debris removing means 24 includes support rods 34A and 34B between support plates 33A and 33B formed on both ends of the removal plate 31 and lower ends of the handle 32, respectively. It is of the provided structure.

  As shown in FIG. 2B, the removal plate 31 is disposed in the vicinity of the lower part of the pair of cutter rollers 21A and 21B of the cutter unit 21, and the support rods 34A and 34B are arranged in the front region shown in FIG. Support holes 25A-1, 25A-2, 25B-1, 25B-2 (support holes 25A-1, 25A-2 are formed in the first front cover 18B-1 and the second front cover 18B-2 of the portion 18B) (Not shown in the figure). The handle 32 is located in front of the second front cover 18B-2 and appears when the door 14 is opened. That is, the door 14 is opened and the handle 32 is reciprocated forward and backward to move the removal plate 31 in parallel (horizontal movement) with respect to the arrangement of the pair of cutter rollers 21A and 21B.

  Returning to FIG. 1B, the back side region 18C is provided with a drive system (not shown) such as a motor and a blower fan 26 which is a blowing means, and the blower duct port 26A is located in the cutting portion region 18A. It communicates upward. The cutting area 18A is blown and air (described with reference to FIGS. 4 and 5) is blown to the cutter 21 (cutter rollers 21A and 21B).

  Here, FIG. 3 shows a cutting explanatory view of the plastic film shredder of FIG. 1, and FIGS. 4 and 5 show explanatory views of the dust removal operation in the plastic film shredder of FIG. First, in FIG. 3, each used ink ribbon roll 51 is set in the supply unit 12, and the leading end portions thereof are combined, and the cutter unit 21 (the cutter rollers 21 </ b> A and 21 </ b> B) in the cutting region unit 18 from the receiving unit 15. When the power switch 16 is turned on, the cutter rollers 21A and 21B are rotationally driven.

  Each ink ribbon roll 51 is continuously cut by the cutter rollers 21 </ b> A and 21 </ b> B to be cut into pieces, and is dropped and stored in the cut piece storage bag 22 as ink ribbon scraps 52 that are cut pieces. In the cutting drive, the temperature of the cutter rollers 21A and 21B rises due to frictional heat at the time of cutting, and the ink ribbon scraps 52 cut by the heat are melted and solidified by the cutter rollers 21A and 21B as shown in FIG. It becomes attached and causes clogging.

  Therefore, as shown in FIG. 4, when the cutting piece storage bag 22 stores a predetermined amount of cutting pieces 52 every predetermined time, the door 14 is first opened and, for example, the cutter rollers 21A and 21B of the operation panel 17 are opened. The blower fan 26 is driven by operating the reverse rotation button (in this case, it is assumed that only the blower fan 26 is driven and the cutter rollers 21A and 21B are not rotated reversely when the door 14 is opened), and the air duct 26A Air 26B is blown to the cutter rollers 21A and 21B. As a result, the cutter rollers 21A and 21B are cooled.

  Then, as shown in FIGS. 4 and 5B, the removal plate 31 moves in parallel with the arrangement of the pair of cutter rollers 21A and 21B by reciprocating the handle 32 of the dust removing means 24 toward the front and back. (Moving horizontally), and the removal plate 31 is melted and solidified on the cutter rollers 21A and 21B to scrape and remove the ink ribbon scraps 52. In particular, the ink ribbon waste 52 is easily removed by the removal plate 31 by improving the peelability of the ink ribbon waste 52 attached by forcibly cooling the cutter rollers 21A and 21B with the air 26B.

  As described above, the scrap removing means 24 (removal plate 31) causes the cutter section 21 (cutter rollers 21A and 21B) generated by the clogging of the ink ribbon scrap 52 due to static electricity or the melting and solidification of the ink ribbon scrap 52 by the heat at the time of cutting. In this case, air 26B is blown from the blower fan 26 to the cutter unit 21 (cutter rollers 21A and 21B) to forcibly cool the cutter rollers 21A and 21B. It is possible to improve the releasability of the ink ribbon scraps 52 adhering to the surface and more effectively remove them.

  The shredder for a plastic film of the present invention can be used in industries such as manufacture, sale, and use of a device for fragmenting a used plastic film.

DESCRIPTION OF SYMBOLS 11 Shredder for plastic films 12 Supply part 13 Cutting body 14 Door 15 Receiving part 16 Power switch 17 Operation panel 18A Cutting area part 18B Front area part 18C Back side area part 19 Cutting piece storage area part 20 Engagement part 21 Cutter part 21A, 21B Cutter roller 22 Cutting piece storage bag 23 Cutting piece storage bag holder 24 Waste removal means 25A, 25B Rod guide part 26 Blower fan 26A Air duct 26B Air 31 Removal plate 32 Handle 33 Support part 34A, 34B Support rod 51 Ink ribbon Roll 52 Ink ribbon scrap

Claims (2)

A plastic film shredder that drops and collects film scraps cut from plastic film,
A rotary cutting unit that cuts the film into pieces by cutting between a pair of cutter rollers in which cutter blades are spaced apart ;
The film waste provided with a removal plate and movable in the horizontal direction in the vicinity of the lower portion of the rotary cutting portion, and adhered to the cutter roller by a melted mass due to heat during cutting after a predetermined time of cutting by the rotary cutting portion. A debris removal means for moving the removal plate in the horizontal direction and removing it from the surface of the cutter roller ;
A shredder for plastic films, characterized by comprising:   The shredder for a plastic film according to claim 1, wherein when the film debris attached to the rotary cutting part is removed by the waste removing means, air blowing means for blowing air to the rotary cutting part to cool it. A shredder for plastic film, which is provided.

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