JPS6113273Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is applied to a removal fitting such as a cutting blade for removing scraps or a cutting blade for cutting into small pieces, which is installed in a device that removes punching scraps when paper carton board material is punched out. This is related.

There has been a marked increase in the number of folding boxes for folding cartons, regardless of the material they are made of, such as veneer or cardboard, and since these boxes are produced as one-panel blanks, which are die-cut products with folds and creases, the blank As a result, the types of blanks are becoming more and more diverse as paper containers are becoming more complex and at the same time a variety of paper containers are required for a variety of uses.

Therefore, even in a series of processes to create these complex and diverse blanks, the punching dies used in the equipment used to punch out blanks from sheets using punching dies, so-called punching dies used in paper carton processing, are also complicated, and the surplus parts used to create blanks from sheets are complicated. The barrel punched scraps are correspondingly complex and cover all shapes.

In the blank production process, a sheet of required dimensions is first fed into a punching device, and a blank of the required shape is formed by a punching die. In this case, in the punching device, punching debris fills the gap between the blades of the punching die and obstructs the advance and retreat of the cutting edge, or prevents the sheet from being set in a fixed position, thereby interfering with the smooth operation of the punching device. In this method, the blank is not completely punched and separated from the sheet by the blade of the punching die, but the punching waste is attached to the peripheral edge or local part of the blank, and the shape of the sheet is maintained.

Items in this state are transferred from the punching device to the next stage, where the punching waste stuck to the periphery or local parts of the blank is removed to form a complete blank, which is then appropriately distributed to be folded into assembled boxes or launched boxes. It is customary.

The punching waste removing device at this stage has a structure in which a cover protruding blade mold that is slightly larger than the blank that is guided here and from which punching scraps are to be removed fit into a fitting cutting blade mold that is slightly smaller than the blank. It is customary for the cover-cutting blade type or the inserting cutting-edge type to have a protruding blade or a cutting blade, respectively, to facilitate the removal of punching waste and at the same time cut and finely cut the punching waste to remove the complexity of the blank. The aim is to improve the efficiency of the production process while responding to the changing trends.

The protruding blades or cutting blades disposed in the cover protruding blade type and the inserting cutting blade type in the conventional device described above make cuts in the respective mold substrates, and insert and insert the belly plate of the thin plate-like cutting blade through the roller cuts. At the same time, it is stabilized by fixing pieces that extend perpendicularly from the belly plate, and is fixed to the back surface of each mold board by screwing as appropriate. It was necessary to prepare as many of each type as possible, imitating the shape of the figure.

However, as mentioned above, there is no end to the diversification of paper cartons, and the shapes of blanks are becoming increasingly diverse. As long as this is followed, the number of covered blade dies and inset cutting blade dies for removing punching waste, which is the key point in creating blanks that are box assembly products, from sheets that are passed through a punching machine using punching dies, will also be enormous. Not only does the cost of manufacturing each individual model increase, but also the storage of these molds requires a large amount of space.Also, in order to save space, removing the protrusion or cutting blade from the base of each mold requires a large amount of screws. All the fixing means such as stops had to be released, and in any case, there was a large operational loss.

This invention was developed in consideration of the current situation.
The purpose of this project is to propose a metal fitting that can be universally applied to the various blanks that make up all paper cartons, and that can be made into a cover-edge type, an inset-type blade type, or each type of blade, and which can solve the problems mentioned above. , When installing a protruding blade or a cutting blade on each substrate of the covered protruding blade type or the inserting cutting blade type, these blades are not fixed to each substrate as in conventional examples, but are made removable. By doing so, the compatibility of the occupied position of the protruding blade or cutting blade attached to the covered protruding blade type or the inserting cutting blade type is maintained, making the covered protruding blade type or the inserting cutting blade type and each blade highly versatile, and at the same time. The object of the present invention is to provide a removal fitting such as a protruding blade or a cutting blade that can be easily removed from each mold base plate so that a large number of each blade mold can be stored in a minimum space when the respective blade molds are not in use.

Next, one embodiment of the present invention will be described based on the drawings.

A paper carton processed by punching with a punching die is punched out from a sheet 1, which is a material, into a single or multiple single-panel blank 2 with folds and creases in a punching machine. As shown in Fig. 1, the sheet 1 does not separate from the sheet 1, and is sent out from the punching device while maintaining the shape of the sheet 1 while being in contact with the punching scraps 3 at appropriate points, and then the punching scraps are removed and removed. The above-mentioned punching waste 3 is removed by being guided by a device,
A blank 2 for folding assembly or launch is obtained.

As shown in FIGS. 2 to 4, the punching debris removing device fixes the cover protruding blade mold 4 to the upper mounting plate with the protrusion 5 facing downward, and the inserting cutting blade mold 10 is attached to the cutting blade 1.
The blade body part 13 is supported by a horizontal bar so that the blade part 2 faces upward, and is fixed to the lower mounting part so that these upper and lower parts can be relatively separated. and the inset cutting edge type 1 located at the bottom.
A sheet 1 which has been punched with a punching die is fed between the sheet 1 and the die 3, and both dies having blank equivalent portions 9, 9 and located above and below are fitted synchronously with the feeding of the sheet 1 by appropriate means, and the punching scraps 3 It functions to subdivide and remove the material, and also to push out local parts of the punching process.

That is, each cutting edge 12 disposed on the fitting cutting edge die 10 matches the narrow groove 8 carved at the important point of the protruding part 5 of the cover protruding edge die 4 when the two dies are fitted, and the punching waste 3 is removed.
At the same time, the cutting blade 7 disposed on the cover cutting blade die 4 pushes down the punching waste 3, and the punching waste 3 and the blank 2 are completely separated and released, and the blank 2 is separated from the paper carton. The punching scraps 3 are transferred to the next stage as raw materials, and fall into a scrap receiving hopper attached to this punching scrap removal device, where they are collected and disposed of appropriately.

The cutting blade 7 disposed on the covering cutting edge mold 4 located in the upper part or the cutting blade 12 arranged in the fitting cutting blade mold 10 located in the lower part is the covering cutting blade type base plate 6 or the fitting cutting blade mold. The projecting blade 7 or the cutting blade 12 is not fixed to the substrate 11 by fixing means such as screws, respectively.
is attached to each board. Taking the cutting blade 12 as an example to explain a specific example of the cutting tool, the fifth
Belly plate 13' of appropriate length as shown in FIG.
One end of the blade body 13 with a blade is attached with a cutting edge 12.
(in the case of a protruding blade, a protruding blade 7 without a cutting edge) is formed, and an abutment plate 14 that is orthogonal to the blade body belly plate 13' is fixed to the upper edge of the blade body part 13 that is one step lower than the above. An insertion part 15 is made to protrude from a part of the upper surface of the corresponding contact plate 14 in the same plane as the blade part.

As shown in FIG. 6, the cutter blade 12 metal fitting configured in this manner has two cut holes in the inserting cutter type substrate 11, into which the insertion portion 15 is fitted and a cut hole into which the portion of the cutting blade 12 near the insertion portion 15 is fitted. Holes were cut by cutting with a scroll saw, etc., and the insertion portion 15 and the end of the cutting blade 12 closer to the insertion portion were inserted into each hole, and the holes were provided on the back surface of the substrate 11 and the blade body of the cutting blade. The abutment plate 14 is brought into close contact with the blade part 14, and the lower edge of the blade part 13 is further supported by a horizontal bar, as shown in FIG. 4, and fixed to the lower mounting part.

Further, like the cutting blade 12, the protruding blade 7 can be fixed in the same way as the cutting blade by providing an abutment plate perpendicular to the blade body of the protruding blade and sandwiching this abutting plate between the protrusion and the base plate. Furthermore, when the inserting cutting blade type board is made larger to accommodate a longer blank, an intermediate spacer 16 shaped only around the insertion part of the cutting blade is installed in advance, and the horizontal bar and the board are It is possible to prevent deformation such as sagging of the intermediate portion of the board by appropriately disposing it in the space between the board and the board.

In such a fixing means, a part of the cutting blade and the insertion part are inserted into the cut hole of the substrate and stand upright, and furthermore, the advancement and retreat in the cut hole is prevented by the abutment plate and the horizontal bar. Therefore, as long as it is attached to the punching waste removal device as a fitted cutting blade type, each cutting blade will be in complete contact with the fitted cutting blade type substrate and can be securely engaged without falling or twisting from side to side. It is.

The punching debris removal fittings of this invention, such as protruding blades, cutting blades, or intermediate spacers, can be attached to a board automatically by simply inserting them into the machine without using nails, screws, or other screws. It can be secured in the set position by the relative relationship between the insertion part and the cut hole and by the pressure applied by the horizontal bar. With this configuration, the contact plate provided on each blade is in close contact with at least each type of board, so each blade is stably secured, and the contact plate is in close contact with each type of board. is reinforced, and the operating speed of the removal device can be increased. In addition, each blade can be easily removed when the mold is not in use, making it convenient to store each mold. At the same time, each removed blade can be interchanged with other molds, making it highly versatile. An advantage of the present invention is that the cost of forming the blade mold can be significantly reduced, and it has great industrial applicability.

[Brief explanation of the drawing]

Figure 1 shows the sheet containing the blank before separating the punching waste, Figure 2 shows the lower working surface of the cover-cutting blade type,
Fig. 3 is the upper working surface of the inserting cutting blade type, Fig. 4 is a diagram of the relationship between the cover protruding blade type, the inserting cutting blade type, and the seat, Fig. 5 is the cutting blade of an embodiment of the present invention, and Fig. 6 2A and 2B are diagrams each showing a state in which the cutting blade is attached to the substrate. DESCRIPTION OF SYMBOLS 1... Sheet, 2... Blank, 3... Punching scraps, 4... Cover protruding blade type, 5... Protruding part, 6... Cover protruding blade type substrate, 7... Protruding blade, 8... Narrow groove , 9...
Blank equivalent part, 10... Inset cutting edge type, 11...
Inset cutting blade type substrate, 12...cutting blade, 13...blade body portion, 14...abutment plate, 15...insertion part.

Claims (1)

[Scope of utility model registration request] The stamped sheets sent from the sheets to form blanks for paper carton assembly are assembled from above and below, and excess punching waste other than the blanks is shredded or pushed down to separate them. In the case of a removal fitting such as a cutting blade or a protruding blade which is arranged on a fitted cutting blade type or a covered protruding blade type, one end of the blade body 13 having a belly plate 13' of an appropriate length is connected to the cutting blade 12 or the protruding part. A contact plate 14 perpendicular to the blade body belly plate 13' is fixed to the upper edge of the blade body 13 that is lower than the blade 7, and a part of the upper surface of this contact plate 14 is , has a structure in which a push-in portion 15 is protruded to be inserted into a cut hole of the inserting cutter type substrate 11 or the cover protrusion type substrate 6, and the abutment plate 14 is fixed to each substrate in a tight state. A punching waste removal fitting featuring the following.