JPS59205300A - Punch - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention consists of a base plate forming a cutting die, a bow receiving tray fixed on the base plate, and two walls, particularly for paper and cardboard products. The punch is provided with mutually aligned guide holes for punch rods that are surrounded by a return spring in the wall surface and are connected to the spring by physical force, and the overhang receiver is provided with guide holes that are aligned with each other. It relates to a device in which a push lever acting on a bunch support is pivotably supported.

Punches of this type are known, for example, from German patent specification 15367
It is known from No. 03. This known punch, however, has the following drawbacks.

A special tool is required to assemble the punch rod inside the overhang receiver, and the special tool is used to insert the return spring into the guide holes aligned with each other in the compressed state. It is installed between both walls. The punch bar is then pushed in until the ring groove provided in the punch bar is positioned via a compressed spring. Subsequently, the stop plate is pushed into the ring groove from the side in the radial direction. Again, special tools are used for this task. At this point, the compression spring can be relaxed and is no longer supported by both wall surfaces of the guide hole portion. The assembly process described above has to be carried out manually, which is very time consuming and results in high assembly costs.

Furthermore, f'1 is unsuitable for automation and is preferably formed as an open structure in order to allow access from the side.
This is a must. The kneading process inevitably results in a structure in which the rigidity of the overhang is weakened. When pushing down the punch using a swingable push lever, the pressing force acting on the bunch is centered at K in the axial direction of the punch rod.
It does not apply, but it applies diagonally to the axial direction of the punch rod, so
A horizontal force component is generated, which causes the sliding friction of the bunch rod in the upper guide hole to increase, thereby increasing wear.

Misfire 1 eliminates the drawbacks that occur with the types of punches mentioned at the beginning, and makes it possible to assemble a punch support with a return spring in a relaxed state without using any special tools. .

I! - Our goal is to improve the results so that

In particular, according to the present invention, the upper guide hole on the push lever side has a diameter that matches the outer diameter of the return spring at least at least 1, and a hole for the punch rod is provided in this kite hole. This is accomplished by the fact that the guide bushings are self-retaining and remain attached.

This embodiment of the invention makes it possible to insert the relaxed return spring with the retaining ring into the overhang from above, ie without the use of special tools. Not only can the kneading be carried out by hand in a simple manner, but this assembly is well suited for do-it-yourself operations. After inserting the return spring,
The guide bush is inserted into the guide hole, but since this guide bush is elastically formed in the radial direction,
When inserted, it is compressed to reduce its diameter, and once insertion is complete, it can return to its original state, and is kneaded into a state in which it is self-retained within the guide hole. The return spring can then be supported at one end by the guide bush. After inserting the guide bushing, it's 4! In a suitable manner, the retaining ring, preferably preassembled on the return spring, is inserted into the ring groove of the bunch bar from above or below, so that it cannot be inserted. By kneading, the bunch rod is held by the overhanging receiver being supported by the return spring inside. Assembling the spring for return by kneading and the punch support becomes very easy, and completely automatic assembly of the punch becomes possible. Furthermore, the overhanging receiver can be formed in such a manner that the entire surface cannot be closed. Kneading improves the stability of the overhang, allowing it to support greater punching force.

In addition, if the guide bushing is made of a synthetic material, a kind of self-lubricating function can be obtained, which increases the force and m of the punch rod. There is also the benefit of reduced sliding friction at the IJ.

Preferred embodiments of the invention are contained in the dependent claims.

The present invention will be explained in detail below using the drawings.

As is clear from FIG. 1, the cutting die of the punch according to the present invention is formed by a base plate (11), which is parallel to the longitudinal edge of the base plate f++ (2). It is fixed on the base plate (1).

The base plate (1) forming the cutting die can be made, for example, from sheet steel, aluminum casting or synthetic material. The overhang receiver (2) is fixed to the base plate by, for example, riveting. The base plate can also be formed integrally with the overhang, if it is not made of synthetic material or cast aluminum, for example. The overhang (2) is preferably closed by the side wall (3), as is clear from FIG. As shown in Figure 2, the overhang is
It mainly consists of one parallel and horizontal wall surface (4) and (5), and the wall surface (4) on the base plate (1) side is directly joined to the base plate (1). The wall (4) has seven stepped steps (6)
There is a gap (7) between the base plate (6) and the step (6).
), and the document that needs to be punched is inserted here. A guide hole (80(9)) used for guiding the punch rod (10) is formed in the wall surface +4+1(5). 12) are wrapped concentrically.
This return spring (12) is preferably formed as a helical spring. Press the push lever (13) inside the overhang receiver (2).
) is movably supported by a bearing, and this push lever (I
When 31 is swung in the direction of the arrow (X), the bunching (lO
) is pushed downward toward the base plate (1). For this purpose Punch II (lo
The return spring (12) wrapped around T is tied to the punch rod by force 7, while the spring is attached to the upper end of the spring, facing the push lever (13j) and the retaining ring (14). The retaining ring is geometrically connected to the bunch zelkova penetrating it. The lower end of the return spring (121) is connected to the step (6) of the horizontal wall (4)
) is supported by the department. The embodiment not shown represents a punch with two bunch bars (10),
Each of the seven overhanging supports guides 7'77 punches. However, the present invention also includes punches with more than one bunch.

In the embodiment not shown, the chip box (1
5) is formed by a removable bottom lid (
16) closes its lower surface.

Tokuzen sword of punch according to the present invention, both horizontal walls (4) + (5
), i.e. in the guide of the punch # tIO+ in its guide hole (8), (9i, for which reference is made to FIG. 3. As is clear from this figure, the upper push lever The diameter of the guide hole (8) on one side is larger than the diameter of the guide hole (9) on the lower side of the base plate (1).Here, the outer diameter of the return spring (12) is The return spring (12I) on which the retaining ring (14) is placed is inserted from -F through the guide hole (8) until its lower end contacts the step (6) of the horizontal wall surface (4). The return spring (12) concentrically surrounds the lower guide hole (9), and the guide hole (8) is aligned with the center axis of the return spring (92). The retaining ring (I4) is equipped with an edge (17') bent in the direction of the plywood fil and wrapped around the periphery of the retaining ring (I4). , the return spring 02) is held here. The stiffness ensures that the retaining ring (14) is securely attached to the upper end of the return spring (12) and prevents the retaining ring from falling off the return spring.

The return spring holding the IL ring is inserted into the guide hole (8) from above.
) After inserting it all the way through, insert the guide hole (8) K from above.
Guide Bush (18) compliments. A guide bushing (18), preferably made of synthetic material, is shown in FIGS. 4 and 5 in a preferred embodiment. As is clear from the kneading, the guide bush (country) consists of a radially elastic cylindrical body (I9) with an upper ring boxwood (3), and this ring boxwood (goods)) (i- The guide bush is in contact with the upper surface of the wall surface (4) L2 in the installed state.

The stiffness is not particularly shown in Figure 3. The groove (22) into which the receiver is inserted is connected to this ring boxwood slope, and the edge of the guide hole (8) extends into this groove (four) when it is in the installed state. The outer diameter of the groove 9 corresponds to the diameter of the guide hole (8). At the bottom, this receiver is inserted and a conical ring (?3) is connected to the groove, and the guide bush (18) In the installed state, this conical ring (23) is in contact with the lower surface of the wall (5).The guide bush (18) is provided with at least seven radial slits (24), which are Cylindrical body (1
9) extends downward from the ring boxwood (20). In the embodiment shown, the slits are arranged at intervals of 0.000. This slit (24) provides elasticity in the radial direction of the guide bush.
) can be inserted into the Here, the cone of the conical ring (z3) expands from the bottom end to the top,
That is, the outer diameter of the conical ring increases from the lower end upwards, and when the guide bush (18) is installed, the guide bush is compressed in the radial direction via the conical ring,
When the receiver is inserted and the groove goes into the guide hole, the cylindrical body (I9) returns below the ring brim, forming a conical ring (4 is the wall + 5)
to accept. Knead and guide bush (country is guide hole (
8) Locked inside.

The receiver has a human groove (the width of 221 does not match the thickness of the wall (5). The guide bush (18) has a through hole f in the center.
2Th, and the diameter of this hole, like the lower guide hole (9), is matched to the outer diameter of the punch rod (lO). This above-described form allows the return spring (1
Attach the overhang holder (2) together with the retaining ring (14).
), which has the essential advantage that no special tools are required.
Furthermore, after assembling the return spring, each punch head passes from the lower blade, that is, along the base plate f1+ and the wall surface (4), or from above through the guide bush (18) (not shown). However, it can be easily inserted.

Punch rod (lO) with a ring groove on its top
When it enters the retaining ring (14), it abuts against the retaining ring (14) which has a cutting claw 27) formed in its hole.

The preferred form of retaining ring utilized is shown in FIGS. 6 and 7. Retaining ring (14) U is preferably made of spring steel. Cut nails (27)? When the retaining ring (14) fits into the ring groove □□□,
As is clear from FIG. 2, the upper end of the bunch stud (10) protrudes from the guide bush.

Thereafter, the push lever (13) can be pivoted on the pivot shaft (see figure) in the overhang receiver (2). Due to the geometrical connection between the punch holder and the retaining ring, the bunch support supports the return spring. In this case, the flaps are held inward, one in the guide bush (I8) and the other in the lower guide hole (9). In the embodiment not shown, When no force is applied to the return spring, one side is on the wall (4) and the other side is on the retaining ring (14).
It is designed to support the guide bush (18) through the guide bush (18). In order to increase the guide area in the lower guide hole (9), it is advantageous to provide the guide hole (9) with a guide extension (29), as is clear from FIG. When assembling the punch rod from above, it is appropriate to chamfer the upper edge of the through hole to facilitate insertion of the punch rod.

As is clear from the above, even an overhanging receiver that is closed on its entire surface can be easily assembled by pushing in from above or below without using individual punches or special tools. You can sleep. 5E is scary and punchy,
The punch rod assembly is performed with all white i#, and the punch assembly can be automated according to the present invention. Furthermore, by using guide bushings made of synthetic material, the sliding friction of the bunching rods is significantly reduced, and additional lubrication is not necessary, resulting in long-term maintenance-free operation.

A more suitable guide bushing 1321 according to the present invention #I is not shown in FIG. This guide bushing has a cylindrical body (33) which can be shaped like the cylindrical body (19) according to FIG. 5.

However, this guide bushing t32 additionally has an extension +341k, which can consist, for example, between two mutually facing strips. This thin plate can be placed, for example, from below the conical ring (23). The length of the extension part (34) is matched to the length of the return spring (12) in the relaxed state. An extension part (a ring plate with a central hole 137+ at the lower end of 341) is formed. The advantage of the guide bushing having this embodiment is that the spring can be completely assembled between the bent cylindrical body β3) and the ring plate before installing the guide bushing in the overhang receiver (2). It is. In addition, the punch rod can be assembled in advance before installing the modified guide hook, and the return spring and guide bush with the bunch rod that have been assembled in advance can be added. can.

The central hole (3η preferably in the guide extension shown in FIG. 8) of the ring plate (36)
The diameter shall be such that it fits. Reliable assembly and retention of the guide bush G3 is achieved by kneading.

FIG. 10 shows 34 different embodiments of the guide bushing, in which the same parts as in FIG. 9 have the same reference numerals. Here, the cylinder is formed as a cone (39), and the diameter of this cone decreases from top to bottom.The shape of this cone (39) is similar to that of the guide hole (8). The centering of the guide bush (34) is carried out by means of this i''I, which in the above-mentioned example is caused by the biased mounting of the radially elastic cylindrical body. A cut protrusion is formed at the transition portion from the cone body (39) to the extension part (34). This cut protrusion guides the cone body (39) to the guide hole (8). When inserted into the guide hole (
8) The guide bush (32) is locked by securing the glue 7 on the bottom side and abutting the lower surface of the wall (5) from below.

Another suitable embodiment of the ring plate (36) according to FIGS. 9 and 10 is one in which a guide bush (511) with a hole @ η is formed on its underside, which is not shown in FIG. Its diameter is made to match the outer diameter of the punch bar, and the punch bar is guided inside this guide bush.The outer diameter of this guide bush is set to match the outer diameter of the punch bar.
) to ensure that the extension is held securely. In addition, this guide bushing 1) can be extended into the extension and, by kneading, the spring (12) is fixed.

In FIG. 11 Kt/'i, another embodiment of the guide bushing according to the invention is not shown. Kone is dedicated to Bunch (
The cap (4'4) wraps around the end of the punch bar and is geometrically connected to the punch bar. The cap (4 odor has an inner chamber (4 barrels, into which the punch s) end is fitted and held in shape. Each 4 cap has its top closed and its The opposite side is provided with an opening (punch II 110) through which the opening (punch II 110) extends.
The cap is formed by a circular radially projecting lip +46) and is joined to the longitudinal cap wall ←η. The lip (46) fits into the ring groove (26) of the punch piece (10), and the shape is joined by kneading.
The cap (44) is formed directly on the end of the punch bar.

In this embodiment, the return spring (12) rests on one side on the underside of the cap (42) and on the other side, not shown here, on the lower wall (4). In relation to the edge 06), the cap is cap it] Face value 09
) is provided with a wall in which an annular groove (51"l) is formed. By kneading, the cap becomes elastic in the radial direction in this chain. This wall is provided with a claw (48).
By kneading, the cap engages with the wall surface (5). The pawl j48) is wedge-shaped and curved, and is pointed toward the frontal surface (49), and the cap is inserted into the guide hole (8
) makes it easy to insert into the

The punch rod is inserted into the guide hole from above with a cap fixed to the spine and punched. At this time, the part where the groove is cut is flexible in the radial direction, so it is easy to punch. can be compressed radially, and the claw portion (4) of the cap
8) passes through the guide hole (8). When this pawl passes through the guide hole (8), the deflection of the cap wall (4η) returns to its original position, and the pawl (shape) engages with the lower side of the wall surface (5). Spring for (
12) can be assembled to the punch rod (101) with 1 t1, and the punch rod can be inserted into the overhang receiver of #: screw in the work process together with the return spring and guide bushing. In the embodiment of the punch of the present invention, the push lever (13) is not assembled after the punch rod (10) is attached, which is efficient.

FIG. 13 shows an alternative embodiment to the embodiments according to FIGS. 9, 10 and 12,
Components that are the same as in FIGS. 1 to 12 have been given the same reference numerals.

Here, the guide bush (18), spring (12) and retaining ring (14) are pre-assembled on the bunch bale (10). The difference from FIGS. 9, 10, and 12 is that the ring plate (62) is constructed separately, and the bunch rod (10
) is provided with the next guide hole (53).

This ring plate is provided with a truncated conical protrusion (54) surrounding the hole on the wall surface (4) side, and the smaller end face of the conical truncated surface is directed toward the wall surface (4).

The ring plate similarly has a hole (
53) with a cylindrical extension (6 clauses) surrounding it.

The outer diameter of this extension (65) is slightly larger than the inner diameter of the spring, and the spring is mounted on the training part (in the state of being pushed in evenly) as shown in the figure, with the extension part sandwiched between them. , The spring (12) and the extension part (6-yen) are connected both in shape and history by kneading. Therefore, as shown in Fig. 13, the part (18) assembled with tllJ.
+ (14) + (12) + (10) 1 sheet 2 can be inserted into the guide holes (8) + (9) as an integral part.

At this time, the integral piece formed in this manner is self-aligned by the relationship between the guide hole (9) and the truncated conical projection (54).

This is because the outer diameter of the free end of the protrusion is smaller than the diameter of the guide hole, increases as it goes upward, and is formed so that it at least matches the diameter of the guide hole.

In the embodiment shown in FIGS. 1-10, FIG. 12, and section 13, the guide bushing is configured to accept only seven punches therein. However, the frame of the present invention also includes a guide bushing configured to allow two bunch rods to be inserted therein in parallel.

The unexploded Fl11 is of course not limited to the embodiments not shown, but also includes all similarly functioning embodiments within the meaning of the invention.

[Brief explanation of the drawing]

The drawings show an embodiment of the punch according to the present invention, FIG. 1 is an external view of the punch according to the present invention, FIG. 2 is a sectional view taken along the line ■-■ in FIG. 1, and FIG. 3 is an assembly of the punch rod. 4 is a plan view of the guide bushing according to the present invention, and FIG.
6 is a sectional view of the retaining ring according to the present invention, FIG. 7 is a plan view of the retaining ring in FIG. 6, and FIG. 8 is a side view of the guide bushing shown in FIG. 9 is an external view of a guide bushing according to a different embodiment of the present invention; FIG. 10 is a partial sectional view of a guide bushing according to a further different embodiment in an installed state; FIG. 11 is a sectional view of a guide hole portion; 12 is a partial sectional external view of a guide bushing in a different form from that shown in FIG. The assembly is a partially sectional side view of an integrated product. (1)... Base plate, (2)... Overhang holder,
(8)...Guide hole, (+01...
Punch offering, (121...Returning spring, (13)...
...Push lever, (+8) = (321+ (4'4)
・・・・・・Guide parts [3 Fig. 5 18258 -7 / / 6/12 ° 9 Out No. 4 Fig. 5

Claims (1)

[Scope of Claims] ■ A punch for paper and cardboard products, etc., comprising a base plate forming a cutting die and an overhanging holder consisting of two walls fixed on the base plate, the punch for paper and cardboard products, etc. The wall is surrounded by a return spring and is connected to the spring by physical force.The overhanging support is provided with guide holes arranged in a line with each other for the punch pins, which are surrounded by a return spring and are connected to the spring by physical force. In the case where the lever is pivotably supported, the guide hole (8) on the push lever (13) side has a diameter that matches at least the outer diameter of the return spring (12), and Guide bushing 118i + (3
21I (a punch characterized in that 42 is attached while self-retaining) ■ In the punch according to claim 0, a central A retaining ring (14) with a hole is disposed, and the retaining ring is provided with a cutting claw protruding inwardly in the central hole, and the claw is fitted into the ring groove of the bunch zelkova (lO). A punch characterized by: (1) In the punch as set forth in claim 0, the retaining ring 04) is provided with an edge (lγ) bent toward the base plate tll at the periphery, and the edge A punch characterized in that the guide bush (+81) is wrapped around a return spring (+2). As a radially elastic cylinder (19) at least the guide hole (
8) A punch characterized by forming a portion that is compressed within the punch. 2) A punch according to claim 0, characterized in that the cylindrical body (19) is provided with at least seven axially extending slit holes 4) on its side wall. ■ In the punch described in claim 0, a slit tray 4) is formed from the end of the cylindrical body Q9) on the base plate (1) side to the other end. A punch characterized in that the punch is elongated.■ In the punch according to claim 0, a receptacle for the inner surface of the guide hole (8) is inserted into the lower side of the ring boxwood (20) (22 is a cylindrical hole). A punch characterized in that the punch is formed on the body 09). ■ In the punch described in Claims ① to ②, the cylinder on the opposite side to the ring boxwood (addition). A punch characterized in that a conical ring (23) is formed at the end of the body (19), and the outer diameter of the conical surface of the conical ring increases in the direction of the ring boxwood. In the punch described in Items (1) to (7), the guide bushing is provided with an extension portion, a ring plate (36) is attached to one end of the extension portion, and a return spring is provided. A punch characterized in that (I2) is supported by the ring plate. (9) A guide bushing value 1) is provided on the side surface. Said guide bushing (61) surrounds the center ring plate (607) having a diameter matching the outer diameter of the punch rod (lO). and the outer diameter of the guide bush (51) is smaller than the diameter of the guide hole (9). In the described punch, the guide hole (
9) A ring plate having a cylindrical extension (55) is inserted into the side end while being inserted, and the punch plate (io) slides inside the ring plate. punch. @ In the punch described in claim 0, a truncated conical protrusion (54) is formed in the portion 0 on the opposite side of the extension portion (55) of the ring plate (5″ 21), and the protrusion A punch characterized in that the smaller truncated conical surface of (54) faces the guide hole (9). [Phase] The punch according to claim 00 or 02), in which the protrusion The maximum outer diameter of the guide hole (9
) A punch characterized by matching the inner diameter of the punch. ■ In the punch described in Section 7 of Claims ① to ②, the base plate (the guide hole (9) on the 11 side)
The punch is characterized in that it is provided with an extension part shi9) projecting toward the push lever α3). [Phase] A punch according to claim 0, characterized in that the extension part is formed by a ring plate (the central hole of the trowel (3η)). [Phase] Claims In the punches described in Items ① to dΩ, the guide hole (8) on the push lever (13) side has a conical shape that narrows in the direction of the base plate (1), and the guide button G3 is formed correspondingly to 7
A punch characterized in that it has a vertical alignment wall section. 0 The punch according to claim 1 [phase], in which a cut protrusion (4) is provided on the lower side of the alignment wall section. A punch characterized in that it has a formed tongue. [Phase] The punch according to claim 0, wherein the guide bush is formed as a cap, and the cap has a punch head (forming a 1010 head). The return spring (12) wraps around the end of the punch and is connected to the punch.
The punch is characterized in that the entire punch is supported by a wall surface (4) on the other side of the base plate (1). qΦ In the punch described in claim 00, the cap (421) is provided with an inner chamber t431 for receiving one end of the bunch bar, and the cap 12 is provided in the ring groove (26) of the bunch bar (101). A punch characterized by a lip (inset). [Phase] In the punch described in the first [phase] or the second [phase] of the claims, 2) on the cap has a lower protrusion 1 of the claw (9). A punch characterized in that the punch has a wall portion formed with an annular groove opening in the front face of the cap (49). A claw is formed on the outer surface of the cap wall (471) located on the outside, and when the guide bush is inserted, the claw is placed on the lower side of the wall surface (5) where the guide bush is bent. (b) The punch according to any one of claims 0 to 0 h, wherein the punch is characterized by having a cutting protrusion or a claw (individual is a wedge). A punch characterized in that the punch is pointed in the direction of the lower wall surface (4) in the form of a guide bush. (1a+ + (
3'A +←A punch whose scent is made from synthetic substances.