JP3106545U - Shoe mold - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shoe die that can process various shoes of different sizes using a small number of blades and that does not take time to adjust the position of each blade.
In a shoe punching die 1, a punching punch 10 is formed by a blade 11 and a support block 12 thereof. Then, a plurality of punching punches 10 and an array plate 20 that determines the positions of the blades 11 of these punches 10 only one way are combined. A plurality of sheets according to the size of the shoes are prepared as the array plate 20, and the same punch 10 is used in combination with any of the array plates 20 to be selected.
[Selection] Figure 1

Description

  The invention according to the claims relates to a shoe cutting die for making a hole in any part (or a material thereof) of a shoe (including sandals and boots) such as a shoe sole and a shell.

A plan view of a typical female sandal is shown in FIG. In the illustrated example, a hole Pa for passing the strap Px is provided in the shoe sole P.
In order to provide such a hole Pa in the shoe sole P (or a material before forming the shoe sole), etc., conventionally, punching processing has been performed using a shoe punching die (opening) 3 as shown in FIG. Yes. In the punching die 3, a punching punch 80 is constituted by a cutter 81 and its support block 82 that are matched to the shape and size of the hole Pa. In the example of FIG. 3, four holes Pa are made in one shoe sole P. Therefore, in the die 3 of FIG. 6, four blades 81 are integrally provided on the support block 82.

Further, as a means for making a plurality of lace-through holes in the upper of the shoe, a punching die 4 having the configuration shown in FIG. In the illustrated example, a large number of position-changeable support blocks 92 called punch sliders are arranged, and on each block 92, a support piece 93 called a punch swinger capable of adjusting the rotational position (angle) is attached. A blade 91 for punching holes is fixed on each support piece 93.
In the cutting die 4 of FIG. 7, the arrangement of the string through holes can be freely changed by adjusting the position of the support block (punch slider) 92 and the angle of the support piece (punch swinger) 93. For this reason, it is said that a set of die-cuts 4 can cope with a wide range of shoe sizes and model changes, and cost can be reduced.
JP-A-5-154798

  As in the example shown in FIG. 6, the die 3 in which a plurality of blades 81 are integrally provided on the support block 82 cannot process shoe soles of different sizes using the same die 3. In order to process different sizes, it is necessary to prepare another die 3 having different intervals between the blades 81. For example, in order to manufacture shoe soles of three types of sizes S, M, and L, a total of 12 blades 81 (4 × 3 types) are required. Since the blade 81 requires a considerable manufacturing cost in relation to materials, heat treatment, dimensional accuracy, and the like, if a large number of blades 81 are required, the cost required for the die cutting 3 is considerably increased.

  On the other hand, in the punching die 4 having a structure in which the position of each of the many blades 91 can be freely adjusted as shown in FIG. 7, since the degree of freedom is too high, it takes time to adjust the position of each blade 91. When developing a new type of shoe over time, it is desirable that the position of each blade 91 can be appropriately determined in a shorter time, for example, when dealing with a change in arrangement according to size. Further, the die 4 shown in FIG. 7 tends to be expensive due to its complicated structure.

  The purpose of the claimed invention is to provide a shoe mold that can process various shoes with different sizes using a small number of blades and that does not take time to adjust the position of each blade. is there.

The shoe cutting die according to claim 1 is a shoe punching die in which a punching punch is formed by a blade and its support block. It is characterized by combining with a board.
Each of the cutting molds 1 and 2 shown in FIG. 1 or FIG. 4 is an example corresponding to the shoe cutting mold of this claim. It should be noted that one to several blades (those that do not need to be changed with respect to each other) may be integrated into each punch. Further, the above-mentioned “position of each blade” does not indicate the position of a specific point in each blade, and includes the direction (ie, posture) of the blade.

  Since this shoe mold is composed of a combination of an array plate and a plurality of drilling punches, if another array plate with a different method of determining the position of each blade is combined with these punching punches, It is suitable for processing another shoe having a different arrangement. Therefore, if various arrangement plates with different arrangement patterns and arrangement intervals of the blades are prepared and combined appropriately with the punching punch, the common punching punch can be used for processing various shoes with different sizes and the like. It is possible to drill various types of shoes with a small number of blades (and therefore at low cost).

  Moreover, since the arrangement | positioning board in this shoe cutting die determines only the position of each cutter of a some punch, it takes time to adjust the position of a cutter. If the arrangement plate is replaced, the position of each blade can be changed. On the other hand, if a specific arrangement plate is selected, the position of the blade is uniquely determined according to the arrangement plate. Because there is no.

  The shoe cutting die according to claim 2 further includes a combination of a plurality of sheets corresponding to the size of the shoes as the array plate (that is, such a plurality of sheets are included in one set of the cutting die). Features.

  According to this punching die, it is very easy to change the position of the punching hole provided in the shoe for each shoe size. In other words, if you select the one according to the size of the shoe from among a plurality of array plates, and combine it with a plurality of the above-mentioned punching punches, there will be a die-cutting with a cutter at an appropriate location according to that size Because it is composed. Since it is possible to cope with a change in shoe size by simply combining the same punching punch with another array plate, a multi-size shoe can be processed with a small number of punching punches. Since the manufacturing cost required for the punching punch including the cutting tool is high, the cost required for the punching can be greatly reduced by using the same punch for processing shoes of different sizes.

  The shoe cutting die according to claim 3 can further determine the position of the cutting tool using the array plate for the same cutting tool size even if the punching holes are different (that is, the cutting tool). (It is possible to interchange if the punches are the same size).

  In such a die cutting, there is no restriction that the same punching hole must be always arranged at a specific portion of the array plate. Even if different punching punches have the same size, the drilling can be performed with the same hole arrangement regardless of which punching punch is placed at the specific location. Therefore, there is an advantage that it is easy to assemble the die, and it is sufficient to prepare a small number as a spare part of the punching punch prepared for the consumption of the blade. In addition, between the punching punch and the array plate, a wrong punching punch (such as a tool whose size is different from that originally disposed) is not disposed at a predetermined position in the array plate. Thus, it is preferable to take a configuration for being arranged at a specific position for each blade size.

  According to a fourth aspect of the present invention, as a means for determining the position of the cutter, the punching punch and the array plate are formed with protrusions and holes that closely fit each other as a means for determining the position of the blade (that is, drilling). Protrusions were formed on the punches, and holes were formed in the array plate that closely fit the protrusions, or conversely, holes were formed in the punching punches and protrusions that closely fit in the holes were formed in the array plate. ). For example, in the die 1 shown in FIG. 1, such protrusions 13 and holes 23 are formed in the punching punch 10 and the array plate 20, respectively.

  According to such die cutting, the array plate determines the positions of the plurality of punching punches (and therefore the positions of the blades) in a single manner by coupling the protrusions and the holes. Since only the projections and the holes are coupled, the positional relationship between each blade of the drilling punch and the array plate can be determined easily and reliably. Moreover, since such protrusions and holes can be easily formed, there is an advantage that the manufacturing cost of the die can be suppressed.

  In particular, the shoe cutting die according to claim 5 is formed on the array plate so that the base portion (base portion) of the blade and the base portion can be inserted in a state where there is no play (a margin in a dimension that can move so as to rattle). The above-mentioned means for determining the position of the blade is constituted by the hole formed. The base portion of the blade is combined with the hole of the array plate as a projection referred to in the above claims. For example, in the cutting die 2 shown in FIG. 4, the end portions 31 a and 41 a on both sides of the base portions of the cutters 31 and 41 are fitted into the end portions 51 a and 52 a of the holes 51 and 52 of the array plate 50, respectively. 31 is positioned.

Also in the die-cutting of this claim, like the one of the said claim, an arrangement | positioning board determines the position of each punching punch, and the position of each cutter by the coupling | bonding of a protrusion and a hole.
However, in the die-cutting of the above-mentioned claims, in order for the array plate to determine the position of each blade, it is premised that the position of the blade with respect to the position of the protrusion or hole in the drilling punch is uniformly determined. If there is a distance between the position of the protrusion or hole and the blade, it may be difficult to realize this.
In that respect, in the punching die of this claim, since the projection that determines the position of the punching hole by coupling with the holes of the array plate is the base of the cutter itself, the positional relationship between the projection and the cutter should be uniformly determined. Is easy. Therefore, it can be said that in the die cutting of this claim, the position of each blade can be determined with high accuracy by the array plate.

  The shoe cutting die according to claim 6 further has a scraping hole formed from the inside of the cutter of the punching punch to the support block, and the dimension of the opening cross section of the hole (inner dimension. Vertical or horizontal, or both The dimension) is increased continuously or stepwise from the tip of the blade toward the support block. The cutting die 1 shown in cross section in FIG. 2 is formed with the scraping holes 11a and 12a that gradually increase from the tip of the blade 11 toward the support block 12, and is an example of a shoe cutting die according to this claim.

  According to the punching die of this claim, scraps (chips) generated when forming a punched hole in a shoe or its material are smoothly discharged to the outside. This is because, in addition to the presence of a scraping hole inside the blade, the opening cross section of the hole is expanded toward the support block (that is, along the direction of discharge), and the scrap passing through the hole is not easily clogged.

  According to the shoe cutting die according to claim 1, drilling can be performed at a low cost for a plurality of types of shoes having different sizes and models using a small number of blades. In addition, there is an advantage that it does not take time to adjust the position of the blade according to the change of the shoe size or the like.

According to the shoe punching die of claim 2, it is very easy to change the position of the punching hole provided in the shoe for each shoe size, which is also advantageous in terms of cost.
Further, the shoe punching die according to the third aspect of the present invention has an effect that the die punching can be easily assembled and it is sufficient to prepare a small number of spare punching punches.

Further, according to the fourth aspect of the present invention, the positional relationship between the blades of the punching punch and the array plate can be easily and reliably determined by means that does not cost much.
The die cutting of claim 5 is advantageous in determining the position of each blade with high accuracy by the array plate.

  Further, in the punching die according to the sixth aspect, scraps (chips) generated when the punching hole is formed are smoothly discharged to the outside.

  One form regarding implementation of invention is shown in FIGS. 1-3. FIG. 1 is a perspective view showing the entire shoe cutting die 1, and FIG. 2 is a longitudinal sectional view showing the cutting die 1 in use in a state cut by a central portion of a blade 11. FIG. 3 is a plan view showing a shoe sole P that has been drilled with the die 1 of FIG.

  The shoe punching die 1 is used by being incorporated into a drilling machine (Exsen, not shown) in order to open four punching holes Pa through which the strap Px passes through the shoe sole P shown in FIG. As shown in FIG. 1, the punching die 1 is configured by combining four punching punches 10 and one array plate 20.

  Each of the punching punches 10 is obtained by integrating a hollow cutting tool 11 having an oval continuous cutting edge on an upper part of a support block 12 (made of iron). Since the holes Pa of the shoe sole P (FIG. 3) have the same shape and dimensions, each punch 10 is configured to have the same dimensions including the blade 11. Details of the support block 12 are as shown in FIG. 2, and an upper thick plate 12A and a lower thick plate 12D are joined together by four cylindrical columns (pipes) 12B and bolts 12C passing through them. .

  One blade 11 is fixed to the upper surface of the upper thick plate 12A in the support block 12 with the blade tip facing upward. The blade 11 is provided with a hollow portion penetrating vertically, which is used as a scrap hole 11a, and subsequently, a scrap hole 12a is also formed in the upper thick plate 12A so as to penetrate vertically. The holes 12a of the upper thick plate 12A have slightly larger vertical and horizontal dimensions in the opening cross section than the holes 11a of the blade 11 so that scraping is smoothly performed downward from the upper edge of the blade edge.

  On the upper surface of the upper thick plate 12 </ b> A of the support block 12, protrusions 13 are provided on the left and right sides (two locations for each punch 10) of the blade 11. The protrusion 13 has a height and a diameter of about 3 mm.

  One array plate 20 is made of an iron plate having a thickness of about 3 mm, and has notches 21 as many as the number of punches 10 (that is, four places) that can project the blades 11 of the punching punch 10 upward. It is. The arrangement plate 20 is provided with a plurality of positioning holes 23 so that the arrangement of the punches 10 can be determined and the positional relationship of the blades 11 (intervals and angles between the blades 11) can be determined only one way. ing. Two holes 23 are provided for each notch 21 for one punch 10, and the distance between the two holes and the diameter of the holes 23 are such that the protrusion 13 on the punch 10 can be closely fitted. It is set. If the two projections 13 on one punch 10 are fitted into the two holes 23 of the array plate 20, the position and orientation of each punch 10 are uniquely determined, and the positions of the four punches 10 are determined. The relationship is determined only in one way. In any of the punches 10, the positional relationship between the protrusion 13 and the blade 11 is uniformly determined, and therefore the positional relationship of the blade 11 is determined only by the array plate 20. Regardless of which punch 10 is placed at any position on the array plate 20, the positional relationship of the blades 11 is determined to be the same.

  Four arrangement plates 20 are prepared according to the shoe size (S, M, L, LL). When drilling holes by changing the size of the shoe sole P, another array plate 20 in which the positions of the positioning holes 23 are set so that the punches 10 are arranged at different intervals is used. Even in the case of changing the shoe size, the punch 10 can be used in combination with the other arrangement plate 20 so that the punch 10 can be used even if there are four types of shoes. It is sufficient to prepare a minimum of 4 (5 to 6 even if spare parts are added). Since processing of other types of shoe soles with different sizes can be performed with a small number of blades 11, the cost required for drilling can be reduced.

  The procedure for drilling a shoe sole P using the die 1 shown in FIG. 1 is as shown in FIG. That is, the punching die 1 in which a plurality of punching punches 10 are assembled to the array plate 20 is placed on the board, and the positioning sponge 6 for the shoe sole P is overlaid on the upper surface of the upper thick plate 12A and attached to the abutting frame 6a. Thus, the sole P is accurately placed at a predetermined position. The rubber plate 7 is stacked on the shoe sole P, and the reduction frame 8 of the drilling machine is pushed down. Then, the shoe sole P is pressed by the reduction frame 8 through the rubber plate 7, and a hole Pa is made at the position of each cutter 11 of the die 1. The scrap generated by punching the hole Pa is discharged through the scraping holes 11 a and 11 b formed from the blade 11 to the support block 12. When further processing is continued, when the reduction frame 8 rises, the shoe sole P after the drilling process is collected and an unprocessed shoe sole P is placed, and the drilling process is performed in the same manner as described above.

FIG. 4 shows a shoe punch 2 as another embodiment of the invention. The upper half of FIG. 4 is a plan view, and the lower half is a partial perspective view.
The die 2 shown in FIG. 4 is a combination of a plurality of punching punches 30 and the like with the array plate 50 in the same manner as the die 1 described above. The punching punch 30 or the like includes an upward / hollow blade with an oval cutting edge and a supporting block thereof, and the cutting plate 2 is formed of an iron plate. There are many common parts. Prepare a plurality of array plates 50 according to the size of the shoes and change the size by combining a total of 4 (or a total of about 6 including spare parts) punches 30 and 40 with any of the array plates 50 Corresponding points are the same as described above. The punching die 2 can also be used, for example, for drilling the sole P in the same manner as in FIG.

However, the die 2 of FIG. 4 differs from that of FIG. 1 in the following points a) to d).
a) Use two types of punching punches 30 and 40 of different sizes in combination. The punch 30 is obtained by attaching a cutter 31 having a slightly shorter vertical length on the support block 32, and the punch 40 is obtained by fixing a cutter 41 longer than the punch 30 on the support block 42 in the same manner. .

  b) The array plate 50 to which the punches 30 and 40 are assembled is not provided with a large notch 21 as in the example of FIG. 1, but a slit having a size that can be projected upward from below through the blades 31 and 41. (Hole) 51 and 52 are formed. The slit 52 is slightly longer than the slit 51 corresponding to the dimensions of the blades 31 and 41. The number of slits 51 and 52 in one array plate 50 is equal to the number of punches 30 and 40 to be used, and two each.

  c) In place of the positioning means by the projection 13 and the hole 23 in the example of FIG. 1, in the example of FIG. 4, positioning by fitting between the base portions of the blades 31 and 41 and the slits 51 and 52 is employed. That is, the dimension between the end portions 31a on both sides in the base portion of the cutter 31 and the dimension between the end portions 51a of the slit 51 are matched by NC processing or the like, and similarly, the dimension between the end portions 41a on both sides in the base portion of the cutter 41 And the dimension between the end portions 52a of the slit 52 are matched. As a result, the blades 31 and 41 are held in a state without play (rattle) with respect to the slits 51 and 52, respectively.

  d) Two punches 30 or punches 40 having the same blade size can be interchanged in the arrangement plate 50, but the punches 30 and punches 40 having different sizes cannot be interchanged. The reason why the punch 30 and the punch 40 are not interchanged is that it is physically impossible to insert the longer punch 40 of the blade 41 into the shorter slit 51 for the punch 30, and the shorter blade 31 is shorter. This is because when the punch 30 is inserted into the long slit 52, the position of the punch 30 is not determined at all, so that it is clearly recognized as an error. For this reason, there is no mistake that the positions of the punch 30 and the punch 40 are mistaken and assembled at an inappropriate place in the array plate 50.

  As described above, the two cutting molds 1 and 2 have been introduced as embodiments, but the inventive shoe cutting molds can be implemented in other forms. For example, it goes without saying that even when the shape of the blade (and thus the shape of the hole to be processed) and the number are different, the shoe cutting die according to FIGS. 1 and 4 can be configured. Various means can be used as means for positioning the punches with respect to the array plate, and the number and arrangement of the protrusions and holes can be selected as appropriate. If there is a situation in which the positional relationship does not change at all for some of the blades (cutlery group) even when the shoe size or model is different, the blade groups are mounted on the same support block and drilled as one hole. It can also be incorporated into a punch.

  Further, the inventive die cutting is not limited to the case of drilling holes in the shoe sole, but can also be used to drill holes in parts used as shoe uppers or boot side skins. FIG. 5 shows such a variation. FIG. 5A shows an example in which the small hole groups X arranged radially are opened at two locations on the shoe sole Q, and FIG. An example in which similar small hole groups X and Y (slightly smaller than X) are formed, and (c) is an example in which similar small hole groups X and Y are formed in the side skin S of the boot. For each small hole group X and Y, a punch is formed by integrating a plurality of blade groups (not shown, including blades and support block), and these are assembled into an array plate (not shown) and positioned for die cutting. (Illustration omitted). In each example of FIG. 5, drilling is performed using such a die. When changing the spacing and arrangement of each small hole group according to the processing part (sole, upper or side skin, etc.), model, size, etc., the same punch is assembled to another array plate. As a result, various types of processing can be performed with a limited number of punches, thereby significantly reducing processing costs.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an entire shoe mold 1 according to an embodiment of the invention. It is the longitudinal cross-sectional view which cut | disconnects and shows the cutting die 1 of FIG. 1 in use in the center part etc. of the cutter 11. FIG. It is a top view which shows the shoe sole P etc. about the sandal which carried out the hole process by the cutting die 1. FIG. It is a figure which shows the cutting die 2 for shoes as other embodiment of invention. The upper half is a plan view and the lower half is a partial perspective view. Each of FIGS. 5A, 5B, and 5C is a diagram showing variations related to shoe hole processing that can be performed by the inventive die cutting. It is a perspective view which shows the conventional cutting die 3 for shoes. It is a top view which shows the other conventional cutting die 4 for shoes.

Explanation of symbols

1.2 Shoe-cutting molds 10, 30, 40 Drilling punches 11, 31, 41 Blades 12, 32, 42 Support blocks 11a, 12a Waste holes 13 Protrusions 33, 43 Protrusions 20, 50 Arrangement plates 23, 51a, 52a Holes

Claims (6)

A punching die for shoes in which a punch is formed by a blade and its support block,
A shoe punching die comprising a combination of a plurality of punching punches and an array plate that defines the positions of the blades of the punches in only one way.   The shoe cutting die according to claim 1, wherein a plurality of sheets corresponding to shoe sizes are combined as the array plate.   3. The shoe cutting die according to claim 1, wherein even if different punching punches have the same blade size, the position of the blade can be set to the same using an array plate. .   The means for determining the position of the blade is characterized in that the hole punching punch and the array plate are formed with projections and holes which are closely fitted to each other, facing each other. The mold for shoes.   The base part of a cutter and the hole formed in the arrangement | sequence board so that the base part can be inserted in a state without play are said means for determining the position of a cutter. Shoe cutting mold. A scraping hole is formed from the inside of the cutter of the punching punch to the support block, and the size of the opening cross section of the hole is continuously or gradually expanded from the tip of the cutter toward the support block. The shoe cutting die according to any one of claims 1 to 5.

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