TWI226865B - Sheet with folding die-cut lines and the blade for die-cutting the said lines of the said sheet - Google Patents

Abstract

A sheet with folding die-cut lines is disclosed, its folding parts have die-cut lines 2 which are provided with bottom portions 2b and ditches 3 and 4 having specific depths with respect to a thickness A of the sheet 1. Essential continuous ditches 5, smaller than the ditches 3 and 4, extend in lengthwise direction over the ditches 3 and 4. The blade 6 for die-cutting the folding die-cut lines 2 is provided with cutting points 6b and edges 7 and 8 having specific heights with respect to the thickness A of the sheet 1. The cutting edges 9, smaller than the edges 7 and 8, extend continuously in lengthwise direction under the edges 7 and 8. The sheet in accordance with the present invention has well foldable capability, softness, good sense of touch, and appearance. The folding process can be performed by machine and particularly adapted for processing plastic and plastic-paper composite materials etc.

Description

1226865 发明 Description of the invention [Technical field to which the invention belongs] The present invention relates to a special scribing knife used for assembling storage containers and for cutting the bending line, such as articles, stationery, toys, food, etc. Container for sheet metal processing equipment. [Prior art] Traditionally manufactured thin plates with curved lines, such as the lines formed by the concave edge or convex shape of the top surface of a plastic thin blade, are formed with deep grooves and shallow grooves as the actual bending. Fair 4-9345 announced a thin plastic handle with a curved line and a scribe knife with a slightly semicircular front and a slightly straight convex blade formed on the side of the top surface of the blade. A semicircular shallow groove and a slightly straight deep groove form a bent portion. Such as Japanese Patent Application Laid-Open No. 2001-293777. There is also a method of forming a scribing blade with fine irregularities by a blade edge, and bending the part to form a small method on the entire inner surface of the bending scribing line, such as Japanese Patent Application Laid-Open No. 6-23835. However, the plastic sheet using the aforementioned Japanese Fair 4-9345 bulletin line and the Japanese invention JP 200 1-293777 male-lined plastic sheet have a thin bending line made by a scribe knife, although the sheet is bent. The performance is improved, but if the thinner sheet is used for storing makeup materials and adding a sheet, it is useful for the knife to press on the sheet part. For example, a 0-shaped concave blade is drawn from a bending line. The gazette of the publication has a concave-convex line that is pressed against a thin plate.

3 1226865 The direction is continuous, and cracks or large holes are easy to appear along the bottom of the sheet. Press on the sheet and pierce the foreign matter such as rubbish or moisture through the opening. Commercial value and hygiene of the item. The bending angle becomes an acute angle, etc. of the bent portion. In addition, its scribing knife eats very thinly, and the small sheet with low elongation will be bent. The biodegradable plastic sheet will be skewed, buckled or corrugated. The appearance of the plastic sheet is assembled into Difficulties arise in container-shaped mechanized assembly.

When you bend the line to bend, bend the line. In addition, if the scribe knife is used to firmly ground the thinner part of the bottom, there will be garbage entering, which will affect the storage in the storage container. In addition, because the groove section has a large difference, the hand feels bad. It is easy to hang on cloth or skin / cloth The thickness of the groove portion will become thinner because the molecular density becomes higher. Sheets and stretched creases are cracked, but the elongation cannot be formed. In addition, the bent part will appear badly. When using a mechanical box machine, there will be stagnation or blockage, so that the line of * · vj π m 'will be fully opened inside the bending line <# When the surface 幵 y is finely concave and convex, the knife of the line cutter 4 : The resistance resistance becomes larger, which requires a large number of ##

’Processing steps take time and effort. In addition, it is difficult to "resist" the blade's edge, causing the sharpness of the scribing knife. The magic angle and position are easy to change, so it is difficult to ensure that the scribing line is formed into a consistent and dangerous ice degree. Can not get good bending, softness. [Summary of the Invention] The object of the present invention is a thin plate of needles and a method for cutting the bend to the above-mentioned problems. A special scribe line cutter with a scribe line is provided for the fold line, which bends along the thin plate 4 1226865. On the groove portion of the scribe line, several convex portions smaller than the groove portion are formed in the longitudinal direction to obtain good bending property and softness, and have characteristics of good feel and appearance, and can perform mechanical bending operations. The technical solution of the present invention is: a thin plate is provided with a concave bending line composed of a pair of side portions inclined at a specific angle and facing each other, and a narrow bottom surface portion connected to one end of the side portion; A plurality of shallow grooves shallower than the bent scribe line and deep grooves deeper than the shallow groove are formed on the bottom surface of the scribe line and in the longitudinal direction. A plurality of convex portions smaller than the grooves are formed along the upper surface of the groove and in the longitudinal direction. . In the thin plate with a curved line, each groove portion and the convex portion are formed in a smooth shape from the longitudinal direction. The above-mentioned dedicated scribing knife for the thin plate is characterized in that a pair of side portions that are concave and are used when bending the scribing line are provided corresponding to the bending position of the thin plate, and are inclined at a specific angle and face each other, and A narrow top surface portion connected to one end of the side surface portion; along the top surface portion of the scribing blade, a plurality of blade edges shallower than the bending line and a blade edge deeper than the shallow blade edge are formed in the longitudinal direction; along the blade edge A plurality of concave portions smaller than the above-mentioned blade edge are formed in the longitudinal direction of the lower surface of the substrate. Each of the scribe blades and concave portions for this thin plate has a smooth curved surface shape in the longitudinal direction. The above sheet can be made of plastic sheet, plastic paper synthetic material, synthetic fiber and other materials, such as polypropylene (e.g. 〇1} ^ 1: 〇〇 丫 161 ^) (??), polyparapeptide ethylene ester (p 〇lyethyleneterephthalate) (PET), or biodegradable plastic and other single or composite materials, and specifications such as thickness 1226865 degrees in the range of 0.1-1 mm (such as about 0.3 mm) transparent or translucent Sheet. The convex portion of the fold line may be composed of, for example, a convex groove portion 5, a concave portion, a protrusion, and the like. The concave portion of the scribing blade may be composed of, for example, a concave blade edge 9, four portions, or potholes. That is to say, when processing the bending scribe line 2 on the thin plate 1, use one or more scoring blades 6 to apply an appropriate amount to each bending part on the thin plate 1 according to the material, thickness, strength, hardness, etc. of the thin plate 1. You can also heat the scribing knife to a certain temperature for processing, and it can be arranged in the longitudinal direction on the curved scribing grooves attached to the thin plate to form several convex portions smaller than the grooves. The groove portions 3 and 4 constituting the above-mentioned bending scribe line 2 and the respective portions B, C, D, E, F, G, 01, 0, 2 and X of the blade edges 7 and 8 constituting the sheet-specific scribe blade 6 can be determined according to The thickness A of the thin plate 1 is set to the following values. For example, the lengths B and C of the grooves 3 and 4 and the blades 7 and 8 are set to a length included in a range of about 30% to 400% of the thickness A of the thin plate 1 (for example, about 0.8 mm). The height D of the blade edge 8 is set to a depth and height included in a range of about 10% to 50% of the thickness A of the thin plate 1 (for example, 0.15 mm). The distance E between the groove 5 and the blade dance 9 depends on the thickness A of the thin plate 1 The pitch included in a range of about 0.05-0. 5 mm (such as 0.2 mm) is set. The depth F of the groove 5 and the height F of the blade 9 are set to be shallower than the groove 4 and lower than the blade 8 and set to The depth and height included in the range of about 5% to 30% of the thickness A of the thin plate 1 (for example, 0.08 mm), set the width G of the groove portion 4 and the blade edge 8 to about 0% of the thickness A of the thin plate 1- The width included in the range of 100% (such as 0 · 〇5 mm). The width Η of the groove 3 and the blade edge 7 is set to about 5% -200% of the thickness A of the thin plate 1. 6 1226865 Fan plate 1 contains The range lb, line 2 A is set at the thickness of the bend). The setting will change the line to be appropriate. It will change the line to be appropriate. Fold the width included in the warp or circumference (such as 0.15mm). The angle of the bending line 2 < 9 1 and the angle 0 of the scribing blade 6 are set according to the angle of the thin bending portion and the thickness A within a range of about 1 5 -1 3 0 degrees. The thickness X is formed to be within the included thickness. For example, the bending angle θ 1 and the angle 0 2 of the scribing blade 6 formed on the bending portions of the front portion 丨 a, the back portion 1 c of the side portion, and the joint portion 1 d, etc. The thickness determines the allowable bending angle (for example, about 43 degrees) in the direction of the bay fold.

The angle H of the scribe line 2 formed by the folded-in portion 1 e, the upper surface portion 1 f, and the bent portion of the lower surface 丨 g 0 1 and the angle 0 of the scribe blade 6 are set according to the thickness of the sheet} degree A to the inside and outside. Bending angle (for example, about 75) If the values of B, C, D, E, F, G, 01, 02, and X are increased, the feel and bending performance of the bending line 2 attached to the sheet 1 will be poor. If the setting value is reduced, the strength of the blade will be reduced, and it is not possible to obtain sufficient results by attaching Bend 2. Therefore, the above setting range should be observed.

If the set value of the pitch interval E is increased, the bending performance of the sheet is poor. If the setting value is reduced, the strength of the blade will be reduced, and it is not possible to obtain sufficient results by attaching Bend 2. Therefore, in order to comply with the above-mentioned setting range 〇 If the setting value of the blade edge angle 0 2 of the scoring blade 6 is increased, a large pressing force is required when the curve 2 is attached, and processing is difficult. Anti-corrugation and the like occur in the thin plate 1, and the bending performance of the thin plate 1 is deteriorated, making the mechanized bending operation difficult. If the setting value is reduced, the blade strength decreases and becomes shorter. Therefore, it is advisable to comply with the above setting range. As long as it is set to a value within the above range, the width, length, depth, and depth of the blades 7, 8, and 9 of the groove 5 of the bending scribe 2 and the scribe blade 6 can be determined according to the thinness, material, strength and hardness. Adjust the pitch and angle, etc., and set the desired arrangement and combination. The grooves 3, 4, 5 of the bending scribe line 2 and the blade edge 7 of the scribe blade 6, can be set to look round, semi-circular, arc-like, fan-like, from the side, front, horizontal, or bottom. Ellipse-like or trapezoidal-like corners such as dichroic, polygonal and other specific shapes or a combination of different shapes. It has slightly the same width or different widths and staggered shapes, forming special shapes such as small bumps, rope-like, and lock-like. In practical applications, the fine convex portions may be formed at the groove portions. The above shallow groove portion or deep groove portion may be different: 乂 is approximately the same depth. In addition, each of the groove portions and the convex portions can be formed in a predetermined size by the thickness of the thin plate. In addition, add r to r to make a shape I that looks like a smooth curved surface from the longitudinal direction. The small recesses can be at the shallow or deep blades. The shallow or deep blades can be of different depths. In addition, the above-mentioned blades and recesses can be

Si :: fixedly large ..., the above-mentioned knife portion and concave portion., ′ Looks like a smooth curved surface in the long direction. Life shortened by thickness of 3,4, height, in addition, 8,9, slippery curve, quaternary to set pattern, part or depth, can also be formed according to the above and convex shape. The same depth and thickness are used to make the stress applied to the surface of the sheet from 8 1226865 above the groove in the longitudinal direction. The present invention has several protrusions smaller than the groove in the line of the bending line of the sheet. The production of skew, reverse warping, etc. and the peeling of the printed coating on this part. And the gap of the groove is small, it is smoother, and you can touch the folding of the sheet with your hand. The P-knife has almost no rough feeling and feels better . And it wo n’t get into the cloth or leather; I, -folded part looks better and is superior in design.. There are small recesses on the blade of the scribing knife. When pressed, the density of the thin plate can be increased. The part is divided into t, and the pressing force required by the scribe knife and the resistance received during the bending and scribing process are greatly reduced. Even the biodegradable sheet with an elongation rate J, can be easily and easily processed. Wire, which has good bending characteristics and flexibility in accordance with the thickness of the thin plate. This means that even if the slab is folded into an acute angle, no cracks or large holes will appear, and even if the holes are generated, it is very small, and foreign objects are difficult to invade. Can effectively prevent Damage to commercial value and hygiene caused by the dagger 4. [Embodiment] The following describes a specific embodiment of the present invention with reference to the accompanying drawings: The thin plate in this embodiment is a plastic thin plate, but it can also be used in practice Sheets made of other materials can also achieve the technical effects of the present invention. The figure shows a plastic sheet with folding lines used for packaging containers for storing articles and a special scriber for processing bending lines. In Figure 1 The material sheet is a transparent or translucent plastic sheet with a thickness of about 0.3 mm. The plastic sheet is unfolded in the shape of a packaging container (see Figure 2). The slightly rectangular front portion la is connected to the left and right side surfaces 1b on both sides, to one of the side surfaces lb, the right side is connected to the rear portion 1c, the right side of the rear portion 1c is connected to the joint portion id, and the upper and lower sides of the side portion lb The folded portion 1e is connected, the upper portion of the front portion 1 & is connected to the upper surface If, the lower portion is connected to the lower surface 1g, and the folded portion lh is connected to the upper surface 1f and the lower surface 1g. The concave bending lines 2 are processed with a scribe knife 6 described later. In addition, a hanging hole (omitted in the figure) for enabling the plastic sheet 1 to be assembled into a container shape may be provided on the rear portion lc. Supporting part for edge connection (omitted in the figure). As shown in FIG. 3 and FIG. 6, the bent scribe line 2 attached to the plastic sheet 1 is a pair of side parts 2 a facing each other inclined at a certain angle. The portion 2a and the bottom surface portion 2b (connected to one end of the side surface portion 2a) are V-shaped when viewed in the longitudinal direction, and the bottom surface portion 2b along the bending line 2 forms a plurality of specific bends at a certain interval in the longitudinal direction. The bottom surface portion 2b of the fold line 2; 篆, the groove portion 3 which is approximately circular or semicircular in side view, and forms one or more ratios in the longitudinal direction along the bottom surface portion 2b between the shallow groove portions 3 and 3. The groove portion 3 is deep, and is approximately arc-shaped or semicircular when viewed from the side. A plurality of groove portions 4 are formed along the upper surfaces of the groove portions 3 and 4 almost continuously in the longitudinal direction or at a certain interval, and are substantially perpendicular to the longitudinal direction. It is shallower and smaller than the grooves 3 and 4 in the horizontal direction of the cross, and is substantially straight when viewed from the vertical direction (front), and the side view The convex groove portion 5 has an approximately smooth curved surface shape (for example, an approximately circular arc shape or a semicircular shape). At the same time, the groove portions 5 arranged from the groove portion 3 to the groove portion 4 are arranged in the order of gradually narrowing and narrowing in the longitudinal direction (or the front-rear direction). The thickness X of the bottom surface portion 2b is, for example, 0 to m_ 1 〇β m. 10 1226865 Contains: It is 2 materials, the depth of the groove of the bending knife is about the line of the face, and the facial degree is 0. There are 6 blades and shallow blades generated within a certain thickness. In addition, the number of the groove portions 3 and 4 can be set to 3, 3 or more. Corresponding to the thickness a, materiality, hardness, etc. of the plastic sheet, the bending line 2 processed by the scoring blade 6 will be combined with the combination of the blades 7, 8, 9 of the scoring blade 6 and the depth, amount, etc. To achieve change. The lengths b and c of the grooves 3 and 4 are set to about 008 mm, D of the grooves 4 is set to about 0.15 mm, the pitch of the grooves 5 is set to about 0.5, the depth F is set to about 0.08 mm, and the grooves 4 The width g is set to 0.1 mm, and the width η of the groove portion 3 is set to about 0.15 mm. When the plastic sheet i is mechanically assembled, the angle 2 of the bend 2 formed on the bent portion of the front portion u, the side lb, the rear portion lc, and the joint portion ld is set to 0 according to the thickness a of the plastic sheet Permissible bending angle (about 43 degrees) in the direction of the direction; Fold-in part: If and the corner 1 of the bending line 2 formed on the bending part of the lower part lg, set the bending angle allowed on the inside and outside (Approximately Nato's special scribe blades 6, 4, 7, and 8 for plastic sheet processing of the above-mentioned bending scribe line 2 have a surface portion 6a, a side portion 6a, and a top inclined at a specific angle and facing each other. The face 6b (connected to one end of the side face) is V-shaped when viewed in the lengthwise direction; it is shallower than the top face 划线 of the scribing knife 6, and is approximately circular or semicircular in shape when viewed from the side. There are multiple apical facial ridges at a fixed interval in the lengthwise direction: Cheng :: 7 eats deep, the side view is approximately ㈣-shaped or semi-circular knife _ 8, the top surface between the 7 and 7 ⑼ is tangible in the longitudinal direction: more than that, the number of blades 8 can be less than 4 or more than 11! 226865 No problem. Compared with blades 7 and 8 Shallow, small, almost straight when viewed from the longitudinal direction (front), and approximately smooth on the side when viewed from the side (for example, approximately circular or semicircular) on a concave blade that is almost continuous or follows a 9 ' The undersides of the blades 7 and 8 are formed in a plurality of intervals in the longitudinal direction and are formed in the k-length direction substantially perpendicular to the longitudinal direction. At the same time, from the blade 7 to the blade? The configured blade 9 is in the longitudinal direction ( Or back and forth)

Narrow sequence configuration. The cutting edges 7 and 8 are cut into a specific shape by a cutting means such as a cylindrical file or a wire. The lengths B and c of the blades 7 and 8 are set to approximately 0.8 mm. The height D of the blades 7 is set to approximately 0.15 mm, and the pitch E of the blades 9 is set.疋 is about 0.2 mm, the height F of the blade 9 is set to about 0.08 mm, the width 0 of the blade 8 is set to about 0.1 mm, and the width 刀 of the blade 7 is set to about 0.1 5 mm. The bottom view of the blade edge of the scribing blade 6 and FIG. The bent scribe lines 2 shown are almost identical. Force Plastic front panel 1 a, side 1 b, rear 1 c

The angle of the blade of the scribing blade 6 of the scribing blade 2 formed at the bending portion of the joint portion 1 d is 0 2 and is set to an allowable bending angle (about 43 degrees) determined for the directions of the respective sections la, lb, and lc. ; Processing the edge angle Θ 2 'of the scribing blade 6 of the folding line 2 formed on the folded portion 1 e, the upper surface portion f, and the lower portion 1 g of the f-folded portion, sighing for each portion 1 ^ 1 f and 1 g Allowable bending angle of inside and outside (about 75 degrees). In addition, in this example, the thickness jj of the scribing blade 6 is set to about 0.07 mm, but it is not limited to this value. It is not a problem to set the thickness of the blade slightly higher or lower than 0.07 mm. The example shown in the figure is constructed according to the above specifications. The following describes the method of processing 12 1226865 plastic sheet 1 using a scribe knife 6, and the method of assembling the plastic sheet 1 with a folding line 2 . When processing the% folding brake wire 2, use the mold for plastic sheet: when the mold is attached or after the mold is lifted, use the "line cutter 6 'shown in Figure 7 according to Figures 1 and 4 Figure on the plastic sheet! The bending part of the front part la, the side part lb, the back part lc, and the joint part id, and the processing: the bending part of the entrance part U, the upper part lf, and the lower part ig, according to the thickness, material, and strength of the plastic / plate 1 Appropriate pressure is applied to the hardness, and the bent portions of the plastic sheet i are processed into bending lines as shown in Figs. 3, 5, and 6. When the plastic sheet i with the f-fold line 2 is not assembled into a rectangular container-shaped side as shown in FIG. 2, along the front portion ia, the side portion ib, the rear portion lc, and the joint portion ld, And processing the folded-in part bu, the upper surface If and the lower part lg _ fold line 2 and bend in an appropriate direction at an appropriate angle 'combination 将 W that connects to one side surface portion, and the other side surface portion lb is bonded with The adhesive is fixed. Lower fold-in portion The upper surface portion 1 f and the lower surface portion i g are bent inward and plugged. When storing items, temporarily fold the upper part 1 'of the upper part 1' and the lower part 1g outward, temporarily fold it, open the container, pack the items, and pack them in: Assemble and use the automatic box assembly machine (not shown) Automatic cartoner (not shown) Convenient for packing. In addition, the joint portion ld may be bonded or fixed by welding or high frequency welding. As mentioned above, 'because the plastic sheet i has smaller and shallower grooves 5 than the grooves 3 and 4 of the fold line 2', there are multiple vertical grooves 13 1226865 formed along the upper surfaces of the grooves 3 and 4, The surface direction of the plastic sheet 1 should prevent the bending part from being skewed, reverse warped and corrugated, and prevent the peeling of the printed coating. Also, the groove 5 is smaller and smoother than the grooves 3 and 4, touch the plastic sheet 1 by hand. The bent part has almost no feeling and feels good. And it wo n’t hang on cloth or skin. On the scoring blade 6, there are smaller blades 9 than the blades 7 and 8. According to the portion where the molecular density on the plastic sheet 1 becomes higher, it is dispersed. The decrease of the resistance is reduced. Even a microdecomposable plastic sheet with a small elongation can easily be processed with a bending scribe line 2 corresponding to the thickness of the plastic sheet to good bending characteristics and flexibility. In addition, even if the plastic is thinly formed at an acute angle, cracks or large holes do not appear, and even if there are holes, fine foreign matter is difficult to penetrate, which can effectively prevent damage to the value and hygiene caused by this. Bend around the bottom surface 2b of the fold line 2 as a center. Bending in one part of the center of the bottom surface of the fold line is not easy to break, and the thickness of the long groove 3 is longer than before. The J-line should be large, 'the strength required for bending can be ensured, and it can be reversed and unfolded multiple times'. Therefore, the plastic sheet 1 can be bent and assembled by machinery. FIG. 9 shows another example of the bending scribe line 2 and the scribe blade 4 and the blade edge 9 formed on the groove portion 4 and the blade edge 8 deeper or almost the same as the blade edge 7 and the blade edge 7. With the shape corresponding to the shape of the groove part, which is smaller, the part is shallower, shallower, and rough. When the appearance is more compressed, the bending resistance can be reduced by A. It is a very commercial price. Compared with the Assemble industry and group. Groove Deep groove Scoring cutter 14 1226865 The bending scribe line 2 is processed on the plastic sheet 1 to achieve basically the same function and effect as the above example. In addition, the groove portion 3 and the blade edge 7 can be formed on the groove portion 3 and the blade edge 7 which are shallower than the groove portion 4 and the blade edge 8. Fig. 10 shows another example of the bending scribing line 2 and the scribing knife. Groove part The blade edge 7 is split into a shape similar to a dihedral shape. The groove part $ and the blade edge $ are formed between the groove part 4 between the groove part 3 and the blade edge 8 between the knife edge 7. The scribe line 6 corresponding to the shape of the groove portion is used to process a fold line 2 on the plastic sheet i, so as to achieve substantially the same function and effect as the above example. FIG. 11 shows another example of the bending scribe line 2 and the scribe line 6. The grooves 5 and the blades 9 are formed on both the grooves 3 and 4 and the blades 7 and 8 which are seen as trapezoid-like sides. The scribe line 6 substantially corresponding to the shape of the groove portion is used to process the bent scribe line 2 on the plastic sheet 1, and the same functions and effects as those in the above example can be achieved. The groove portion 5 may be formed on either of the groove portions 3 and 4, and the blade edge 9 may be formed on either of the blade edges 7 and 8. FIG. 12 shows another example of the bending scribe line 2 and the scribe line 6. The groove portion 5 is formed at the top of the groove portion 3 and the valley portion of the groove portion 4, and the blade edge 9 is formed at the center of the upper end of the blade edge 7 and the center of the lower end of the blade edge 8. Using the scribe knife 6 basically corresponding to the shape of the groove portion, the bending scribe line 2 is processed on the plastic sheet 丨, and the same functions and effects as those in the above example can be achieved. Fig. 13 shows another example of the bending scribe line 2 and the scribe line 6. In the figure (0, the groove 5 and the blade edge 9 are formed to intersect the scribing processing direction (or lengthwise direction) at a certain angle. (2) in the figure, the groove 5 and the blade edge 9 are formed in a diamond shape and a parallelogram shape, for example. The shape bear 15 1226865 crossed at a certain angle. (3) in the figure is a convex groove 5 and a concave blade 9 with a special shape such as a pear-shaped pattern or small unevenness in the scribing direction (or lengthwise direction). Formed. Using the groove-shaped scribe cutter 6 corresponding to (1), (2), and (3), the bending scribe line 2 can be processed on the plastic sheet 1, which can basically achieve the same function and effect as the above example. In addition, The groove portion 5 and the blade edge 9 can also be made into special shapes such as a rope-like shape or a lock-like shape. Figs. 14, 15, 16, and 17 show f-folds.

Other examples of the line 2 and the scribing knife 6. The grooves 3 and 4, 5 and the blades 7 and 8, 9 are smooth curved surfaces (such as arc-like or semi-circular, etc.) in the longitudinal direction (front) and the lateral width (side), or they form a certain shape. The radius of curvature. Moreover, the grooves 3, 4, 5 of the bending scribe line 2 viewed from the plane, and the edges 7, 8, and 9 of the scribe blade 6 seen from the bottom surface are smooth curved surfaces (such as an ellipse-like or arc-like shape). Using a scriber 6 which substantially corresponds to the shape of the groove portion, a bending scribe line 2 is processed on the plastic sheet 1, and the same functions and effects as those in the above example can be achieved. In addition, both ends of the groove portion 5 and the blade edge 9 may be formed into a smooth curved surface shape.

Fig. 18 shows another example of the bending scribe line 2 and the scribe line 6. The groove portion 5 formed between the groove portions 3 and 4 of the zigzag scribe line 2 and the blade edge 9 formed between the blade edges 7 and 8 of the scribing blade 6 form a smooth curved surface shape in a direction substantially parallel to the longitudinal direction (for example, Ellipse-like shape, streamline-like shape, etc.), and the groove portion 5 arranged from the groove portion 3 to the groove portion 4 and the blade edge 9 arranged from the blade edge 7 p] to the blade edge 8 are sequentially in the longitudinal direction (or front-back direction). Smaller and narrower order configuration (such as the order from a circle to a circle). The scribe line 6 corresponding to the shape of the groove part is used to process the bending scribe line 2 on the plastic sheet 12 1226865, which can achieve the same function and effect as the above example. As another method of processing the bending line 2 described above, the slicing knife 6 may be heated to a certain temperature and pressed on the bent portion of the plastic sheet 1 for processing, or a circular plate-like or roller-shaped turning line may be used. A knife (not shown) is pressed while processing on the plastic sheet 1 while turning. After the bending and scribe lines 2 are processed, the plastic sheet 1 can be made into a variety of containers such as pillow-shaped packaging containers, triangle-like, oval-like and the like. A number of parallel bending lines can be processed on the praise and disassembly part of the plastic sheet, and its use is not limited to the plastic sheet assembled into a container in the practical example. [Schematic description] Figure 1 Expanded view of a folded sheet. Fig. 2 is a perspective view of a container in which a thin plate of the present invention is assembled. Fig. 3 is a perspective view of a bent scribe line processed on a thin plate of the present invention. Fig. 4 is a groove-shaped side surface _ of a folded scribe line according to the present invention. W. Edge shape of the wire knife. FIG. 5 is a plan view of the arrangement state of the groove portion formed on the sheet of the present invention. FIG. 6 is a longitudinal sectional view of the groove shape of the present invention-folded line. Fig. 7 is a perspective view of the present invention in which a bending scribing line is added with nu. Fig. 8 is a longitudinal sectional view of a blade shape of the scribing blade of the present invention. 17 1226865 Fig. 9 is a side view of another example of a bending scribing line and a scribing blade according to the present invention. Fig. 10 is a side view of another example of the bending scribing line and the scribing blade according to the present invention. Fig. 11 is a side view of another example of a bending scribing line and a scribing blade according to the present invention. Fig. 12 is a side view of another example of a bending scribing line and a scribing blade according to the present invention. Fig. 13 is a diagram for explaining another example of the bending scribing line and the scribing blade according to the present invention. Fig. 14 is a cross-sectional view of another example of a bending scribing line and a scribing blade according to the present invention. Fig. 15 is a plan view of an oval-like groove portion formed on a thin plate of the present invention. Fig. 16 is a perspective view showing an arrangement state of the oval-shaped groove portion of the present invention. Fig. 17 is another oblique view of the arrangement state of the oval-shaped groove portion of the present invention. Fig. 18 is an explanatory view showing another arrangement state of the groove portion and the blade edge according to the present invention. [Simplified description of component representative symbols] 1 Sheet 2 Bend scribe line 1 a Front part of sheet 1 b Side part of sheet 18 1226865 Rear part of sheet 1 d Joint part of sheet 1 e Folded part of sheet 1 f Upper part of sheet 1 g of the lower part of the sheet 1 h of the folded part of the sheet 2 a side part of the curved line 2b bottom part of the curved line 4 groove part 3 groove part 5 groove part 6 scribing blade 7 blade edge 6b top surface of the scribing blade 8 blade edge 9 The thickness of the blade A The thickness of the blade B The length of the blade 7 and the groove 3 The length of the groove 4 and the length D of the blade 8 The depth of the groove 4 The height of the blade 7 The depth of the groove 5 of the blade 5 and the depth F of the blade 9 The depth of the blade 9 Height G width of groove portion 4 and blade edge 8 width of groove portion 3 and blade edge 7, thickness of scribing blade X thickness of bottom surface portion 2b 19

Claims (1)

^ 226865 Patent application scope 1. A thin plate with a bent scribe line, characterized in that: the thin plate has a pair of sides inclined at a specific angle and facing each other 4, and a narrow portion connected to one end of the side portion A concave bending line composed of the bottom surface portion; Μ along the bottom surface portion of the bending line, forming a plurality of groove portions shallower than the above-mentioned acoustic folding line and groove portions deeper than the shallow groove along the longitudinal direction; and On the upper surface of the groove portion, a plurality of convex portions smaller than the groove portion are formed in the longitudinal direction. 2. The thin plate with a curved line as described in item 1 of the scope of patent application, which is characterized in that a small convex portion is provided in the shallow groove portion and / or the deep groove portion. 3. The thin plate with folded lines as described in item 1 or 2 of the scope of patent application, characterized in that the shallow grooves and deep grooves can form different or almost equal depths. 4. The thin plate with a curved line as described in item 3 of the scope of patent application, characterized in that each of the grooves and convex portions is determined according to the thickness of the thin plate. 5. The thin plate with bending and scribing as described in item 4 of the scope of patent application, characterized in that each of the groove portions and the convex portions is formed into a smooth shape from the longitudinal direction. '·' 20 1226865 6.-A special scribing knife for cutting, bending, and scoring, characterized in that: the scribing knife is provided with a concave shape corresponding to the f-folded portion of the sheet, Slanted at a specific angle and facing each other-opposite side parts: and a narrow top surface part connected to one end of the side part; along the top surface part of the scribing blade, several blade edges shallower than the bending line are formed in the longitudinal direction. And a blade edge deeper than the shallow blade edge; and a plurality of small concave portions formed in the longitudinal direction along the lower surface of the blade edge. Stele 7, as described in item 6 of the patent scope, "Cutter Line I Line Knife 1" is characterized by the use of a small concave portion at the shallow blade and the depth. The bank has completed the above as detailed in item 6 of the scope of patent application. Or the 7th green special ~ Jin Shuzhi cuts and bends with the s 丨 line knife, which is characterized in that the shallow blades are different from each other & the blades and deep blades can report U or almost equal depth. 9. As stated in item 8 of the scope of the patent application, the line knife, f μ 4 °° is used to determine the degree of exclusive use for bending, folding, and scoring. The size is based on the sheet of the patented scope of patent application. The line knife, A is characterized by the rounded shape of the cut line of the zigzag line, X & " " The above-mentioned blade portion and the concave portion are smooth from the longitudinal & curved surface shape. Direction Shape 21