JP2006181950A - Paper dust preventing method in corrugated card board material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent the generation of paper dust from a corrugated card board material in case of cutting the corrugated card board material. <P>SOLUTION: In case of cutting the corrugated card board material A with a cutting means 16 such as a cutter or the like, the area of the corrugated card board material A to be cut with the cutting means 16 is pushed and smashed before cutting with the cutting means 16. A coating agent is applied to the outer peripheral edge and the cut surface of the corrugated card board material A after cutting the corrugated card board material A with the cutting means 16. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a paper dust generation preventing method for a corrugated board material that prevents the occurrence of paper dust from the corrugated board material when the corrugated board material is cut.

  In recent years, the use of corrugated cardboard, which is mainly made of paper, easily burns, easily dissolves in water, and can be recycled as a packaging material or cushioning material, is expanding.

  However, as one of the problems in using this corrugated cardboard material as a packaging material or a cushioning material, there is paper dust generated when the corrugated cardboard material is cut. When paper dust is generated during the cutting of the corrugated cardboard material, there are problems that the working environment is deteriorated and a lot of cleaning work is required, and the working efficiency is lowered. Moreover, if the paper powder is delivered to the customer with the paper powder attached, a large complaint will be generated. In particular, when the packaged item is food or medicine, a complaint is generated in terms of hygiene such as paper dust adhering to the food and medicine.

  The present invention has been made in view of such problems, and the object of the present invention is to generate paper dust in a corrugated board material that prevents the occurrence of paper powder from the corrugated board material when cutting the cardboard material. It is to provide a prevention method.

  In order to achieve the above object, according to the present invention, when cutting a cardboard material with a cutting means such as a cutter, the cutting area of the cardboard material to be cut with the cutting means is pressed and crushed before being cut with the cutting means. It is characterized by that.

  Thus, the cardboard material can be cut without generating paper dust from the cut surface portion by pressing and crushing the cut area of the cardboard material before cutting with the cutting means. As a result, the work environment can be improved, and the cleaning work can be simplified to improve the work efficiency.

  Further, the present invention coats the outer peripheral edge and the cut surface portion of the corrugated board material by applying the coating agent to the outer peripheral edge portion and the cut surface portion of the corrugated cardboard material after cutting the cardboard agent with the cutting means. The outer periphery of the corrugated cardboard material and when the folded corrugated cardboard box formed by the folding process of the corrugated cardboard material or when the folded cardboard box is transported and assembled, etc. When the cut surface portion of the slit 7 interferes with the foreign matter, the paper structure is collapsed and the inconvenience that paper dust is generated is surely prevented.

  According to the present invention, the cutting area of the corrugated cardboard material is previously crushed to prevent the generation of paper dust from the cut surface, so that the working environment can be improved and the cleaning operation is simplified. To improve work efficiency. In addition, the outer peripheral edge and cut surface of the corrugated cardboard material are cured by applying a coating agent, so it is possible to reliably prevent inconveniences such as paper dust being generated when the corrugated cardboard material is transported, stored, or assembled in a box. Is done.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 shows a corrugated cardboard sheet A for assembling and producing a corrugated cardboard box used for packaging an object to be packaged such as food manufactured from a corrugated cardboard material using the method of the present invention. The corrugated cardboard paper A includes four side plates 1 that are continuous in one direction, a lid flap 2 and a bottom flap 3 that are continuously provided above and below each side plate 1, and a joint flap 4 that is continuously provided at one end of the side plate 1 at one end. It is composed of A vertical folding line 5 is provided between the adjacent side plates 1 and 1 and between the side plate 1 at one end and the joint flap 4, and between the side plates 1, the lid flap 2 and the bottom flap 3. Fold lines 6 and 6 are provided, and slits 7 are formed between adjacent lid flaps 2 and 2 and between bottom flaps 3 and 3.

  In such cardboard box paper A, the four side plates 1 are bent into a rectangular tube shape from the vertical fold line 5 and the joint flap 4 is bonded to the opposite side plate 1, and then the lid flap 2 and the bottom flap 3 are taken from the horizontal fold line 6. Folded inward and assembled into a cardboard box.

  When manufacturing the cardboard box paper A, first, the corrugated board material is formed into a predetermined shape, and at the same time, the horizontal folding line 6 for folding the lid flap 2 and the bottom flap 3 is formed, and subsequently the slit 7 is formed. A vertical folding line 5 for folding the side plate 1 and the joint flap 4 is formed simultaneously with crushing the cutting area of the plate, and subsequently, a slit 7 for forming the lid flap 2 and the bottom flap 3 into four parts is formed. It has become. The order in which the vertical fold line 5 and the horizontal fold line 6 are formed is not limited to the order described above.

  As shown in FIG. 2, the processing machine for forming the slit 7 of the cardboard box paper A includes a moisture applying means 11 for applying moisture to the cutting area for forming the slit 7 of the cardboard box paper A, and a cardboard box paper. A crushing means 13 for forming the vertical fold line 5 at the same time as crushing the cutting area of A and a cutting means 16 for cutting the cutting area of the cardboard box paper A to form the slit 7 are provided.

  The moisture applying means 11 includes a water channel pipe 12 disposed above the feeding line of the corrugated cardboard paper A and perpendicular to the feeding direction, and the water channel pipe 12 has a spray port (not shown) for spraying fine moisture. Are provided at predetermined intervals, that is, at intervals corresponding to the slits 7 of the cardboard box paper A.

  The crushing means 13 has a pair of rotary shafts 14 arranged in an up-and-down relationship across the feeding line of the cardboard box paper A, and a plurality of crushing rollers 15 are respectively provided on the rotary shafts 14 with a predetermined amount. It is attached at intervals, that is, at intervals corresponding to the slits 7 of the cardboard box paper A, and is formed along the circumferential direction on the outer peripheral surface of one of the upper and lower crushing rollers 15 (downward in the drawing). An annular ridge 15a is provided.

  In the cutting means 16, a pair of rotary shafts 17 and 18 are disposed opposite to each other with the feeding line of the cardboard box paper A interposed therebetween, and the upper rotary shaft 17 has a cutter 19a on the outer peripheral surface. A plurality of cutting rollers 19 provided are provided with a plurality of annular grooves (not shown) for receiving cutters 19a of the cutting rollers 19 formed on the outer peripheral surface along the circumferential direction on the lower rotary shaft 18. The receiving rollers 20 are mounted at predetermined intervals, that is, at intervals corresponding to the slits 7 of the cardboard box paper A.

  In the processing machine configured as described above, when the corrugated cardboard paper A provided with the horizontal fold line 6 is supplied, the corrugated cardboard paper A is sent below the water channel pipe 12 of the moisture applying means 11. Fine moisture is sprayed from the spray port onto the cutting area of the cardboard box paper A, and moisture is applied to the cutting area. After applying moisture to the cutting area of the cardboard box paper A by the moisture applying means 11, the cardboard box paper A is sent between the crushing rollers 15 mounted on the upper and lower rotary shafts 14 of the crushing means 13, and this crushing roller 15, the upper and lower surfaces of the folding area for forming the vertical folding line 5 of the cardboard box paper A and the cutting area for forming the slit 7 are sandwiched, so that the outer peripheral surface of the lower crushing roller 15 is provided. The lower surface of the folding area for forming the vertical fold line 5 of the cardboard box paper A and the cutting area for forming the slit 7 is strongly pressed by the annular ridge 15a. Thereby, the vertical folding line 5 for folding the side plate 1 and the joint flap 4 of the cardboard box paper A is formed, and at the same time, the cutting area for forming the slit 7 is crushed. After crushing the cutting area of the cardboard box paper A by the crushing roller 15 of the crushing means 13, the cardboard box paper A is fed with cutting rollers 19 and receiving rollers 20 mounted on the upper and lower rotary shafts 17 and 18 of the cutting means 16. The slit 7 is formed by cutting the cutting area of the cardboard box paper A by the cutter 19 a provided on the outer peripheral surface of the cutting roller 19.

  Subsequent processes of the cutting process by such a processing machine are provided with a coating device (not shown), and a coating agent is applied to the outer peripheral edge portion of the cardboard box paper A and the cut surface portion of the slit 7 by this coating device. Then, a coating process is performed. That is, the cardboard box paper A is shipped in a state where the outer peripheral edge portion and the cut surface portion of the slit 7 are cured by the coating process.

  As described above, before the cutting area of the cardboard box paper A is cut to form the slit 7, moisture is applied to the cutting area of the cardboard box paper A by the moisture applying means 11, and the cardboard box is pressed by the crushing means 13. Since the upper and lower surfaces of the cutting area of the paper A are pressed and the cutting area is crushed, no paper dust is generated even if the cutting means 16 cuts the cutting area of the cardboard box paper A. As a result, the work environment can be improved, and the cleaning work can be simplified to improve the work efficiency.

  Moreover, after the slit 7 is formed by the slit processing machine, a coating agent is applied to the outer peripheral edge portion of the cardboard box paper A and the cut surface portion of the slit 7 to perform a coating process, and the outer peripheral edge portion and the slit 7 of the cardboard box paper A are applied. Since the cut surface portion of the cardboard box is hardened with a coating agent, the cardboard box paper A is handled during folding processing or replacement, and also when the cardboard box in the folded state formed by folding the cardboard box paper A is transported and the box. At the time of assembling or the like, the outer peripheral edge of the cardboard box paper A and the cut surface of the slit 7 interfere with foreign matter, so that the inconvenience that the paper texture is collapsed and paper dust is generated is surely prevented.

  As mentioned above, although one Embodiment of the paper dust generation | occurrence | production prevention method of the corrugated cardboard material based on this invention was described, the paper dust generation | occurrence | production prevention method of the corrugated cardboard material concerning this invention is not limited to this embodiment. For example, in the above embodiment, the case where the generation of paper dust when the slit 7 of the cardboard box paper A is formed is described. However, when the cardboard material is cut into a predetermined shape, the cutting area is set in advance. If crushed, paper dust will not be generated even if the cardboard material is punched.

  Moreover, in the said embodiment, the vertical fold line 5 for bending the side plate 1 and the joint flap 4 of the cardboard box paper A is formed by the annular ridge 15a provided on the lower crushing roller 15, and the slit 7 is formed at the same time. However, the upper crushing roller 15 is provided with an annular ridge 15a, and the vertical fold line 5 of the cardboard box paper A is formed by the annular ridge 15a of both the upper and lower crushing rollers 15. For forming the slit 7 at the same time as forming the vertical folding line 5 for bending the side plate 1 and the joint flap 4 by strongly pressing the upper and lower surfaces of the bending area for forming and the cutting area for forming the slit 7 The cutting area may be crushed, and the cardboard box paper A of the cardboard box paper A by the annular ridge 15a of the upper crushing roller 15 may be used. The folding area for forming the vertical folding line 5 and the upper surface of the cutting area for forming the slit 7 are pressed strongly, and the vertical folding line 5 for folding the side plate 1 and the joint flap 4 is formed at the same time as the slit. 7 may be crushed, or the upper surface, the lower surface, or the upper and lower surfaces of the cutting region of the cardboard box paper A may be crushed by other than the roller. In addition, as a method of crushing the cutting area of the cardboard other than the roller, for example, by pressing the crushing member made of rubber, synthetic resin or the like strongly against the cutting area of the cardboard material with a press or the like, The area may be crushed. In this case, it is preferable to crush the cutting area of the cardboard material with the crushing member in a process before the process of cutting the cutting area of the cardboard material, for example, a printing process for printing on the cardboard material.

  In the above embodiment, before the crushing means 13 crushes the cutting area for forming the slits 7 of the cardboard box paper A, the moisture application means 11 applies moisture to the cutting area. After the cutting area for forming the slit 7 of the cardboard box paper A is crushed by the means 13, moisture may be applied to the cutting area by the moisture applying means 11, and moisture is not applied by the moisture applying means 11. It doesn't matter.

  Further, in the above embodiment, the slit 7 of the cardboard box paper A is formed by being cut by the cutting roller 19 having the cutter 19a on the outer peripheral surface, but the slit 7 is formed by being cut by a press type cutter. It doesn't matter if you do. Even in this case, no paper dust is generated during cutting.

  In the above embodiment, the coating agent is applied to the outer peripheral edge portion of the cardboard box paper A and the cut surface portion of the slit 7 by the coating apparatus. However, the coating agent may be applied manually.

  Furthermore, although the said embodiment described the case where the cardboard box paper A for assembling and making a cardboard box was described, the packaging material or cushioning material of cardboard materials other than cardboard box paper may be sufficient.

It is a top view of the cardboard box paper manufactured from a cardboard material using the method of the present invention. It is a simplified side view of a slit processing machine.

Explanation of symbols

  A ... Cardboard box paper, 1 ... Side plate, 2 ... Cover flap, 3 ... Bottom flap, 4 ... Joint flap, 5 ... Vertical fold line, 6 ... Horizontal fold line, 7 ... Slit, 11 ... Moisture imparting means, 12 ... Water channel Pipe, 13 ... Crushing means, 14 ... Rotating shaft, 15 ... Crushing roller, 16 ... Cutting means, 17, 18 ... Rotating shaft, 19 ... Cutting roller, 20 ... Receiving roller

Claims (2)

  When cutting cardboard material with a cutting means such as a cutter, the cutting area of the cardboard material to be cut with the cutting means is pressed and crushed before being cut with the cutting means. Powder generation prevention method.   2. The method for preventing the occurrence of paper dust in a corrugated cardboard material according to claim 1, wherein after the corrugated cardboard material is cut by a cutting means, a coating agent is applied to an outer peripheral end portion and a cut surface portion of the corrugated cardboard material.

Images