JP2686726B2 - Wire guide for spring making machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

FIELD OF THE INVENTION The present invention relates to a wire guide for a spring making machine.

[0002]

2. Description of the Related Art Conventionally, the following is known as a wire guide for a spring manufacturing machine of this type. That is, it is known to have a pair of left and right line guide members that have line guide grooves at portions where they abut each other and that have at least two bolt insertion holes. The pair of left and right wire guide members are fitted in the front and upper and lower recesses of the mounting base provided on the front wall of the spring manufacturing machine, and then the bolts are inserted into the screw holes of the mounting base through the bolt insertion holes. It was designed to be fixed by screwing.

[0003]

Disadvantages of the Prior Art The conventional wire guide has the following drawbacks. That is, since the pair of left and right wire guide members have wire guide grooves through which the wire rods pass, the pair of left and right wire guide members must be fixed to the mounting base in a close contact state without play. There is. However, conventionally, the pair of left and right wire guide members are fixed by simply screwing the bolts into the screw holes of the mounting base, that is, by simply tightening the bolts, they are brought into close contact with each other without play. Since the line guide member could not be fixed, the left and right width of the recess of the mounting base and the left and right width of the line guide member were manufactured with high precision (improving the processing accuracy of the mounting base and the line guide member), and the line When the guide member is fitted in the recess of the mounting base, the wire guide member must be in a state without any play (play) in the recess, resulting in a high cost. . In addition, when wear or damage occurs in the vicinity of the line guide groove, which is the most important part of the line guide member, the line guide member must be replaced, that is, parts other than the vicinity of the line guide groove must be replaced. Since there was no problem at all, the entire wire guide member had to be replaced, which also had the disadvantage of high cost.

[0004]

Means for resolving the above drawbacks The invention of claim 1 employs the following means for resolving the above drawbacks. According to the invention of claim 1, a main body having a recess that is open to the front and upper and lower sides, and a pair of left and right line guide pieces that are fitted into the recess of the main body and that have line guide grooves in mutually opposing portions,
Having a line guide piece holding piece to be fitted in a recess of the main body, the side surface of the main body that abuts the line guide piece holding piece is an inclined receiving surface facing forward, of the line guide piece holding piece, The side surface facing the inclined receiving surface is an inclined contact surface that abuts against the inclined receiving surface. By contacting the inclined contact surface with the inclined receiving surface, the left and right line guide pieces are separated from the line guide piece holding piece and the main body side. It is designed to be sandwiched between the parts.

[0005]

The first aspect of the present invention has the following functions. Since the wire guide piece can be firmly and easily fixed by utilizing the wedge action, the manufacturing precision does not need to be required as in the past, so that the cost can be reduced.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings based on two embodiments. In these examples, the same members are denoted by the same reference numerals.

Embodiment 1 (see FIGS. 1 to 3) In this Embodiment 1, the front means the front side of FIG.
The rear means the back side, the left means the left side in FIG. 1, and the right means the right side in the figure. The spring manufacturing machine 1 includes a machine frame 2 having a vertical front wall 3, a wire rod machining space 5 formed in a central portion of the front wall 3 of the machine frame 2, and a wire rod fed toward the wire rod machining space 5. The first line guide 6A, the second line guide 6B, and the third line guide 6A provided on the front wall 3 by means described later.
A wire guide 6C, a pair of wire feed rollers 7 that are provided between the first wire guide 6A and the second wire guide 6B and feed out while pinching the wire rod, and a third wire that sandwiches the wire rod processing space 5 Bending die slide 8 facing the guide 6C and provided on the front wall 3 so as to move forward and backward toward the wire processing space 5, and a required book provided on the front wall 3 so as to move forward and backward toward the wire processing space 5. The tool mounting slide 11 of FIG. The bending die slide 8 is provided with a main body 8a provided on the front wall 3 so as to be movable back and forth toward the wire processing space 5, and provided on the main body 8a so as to swing parallel to the front wall 3 (left and right). And the second swinging piece provided on the main body 8a so as to swing in parallel (left and right) with the front wall 3 and to engage with the first swinging piece 8b. 8c and. A bending die is attached to the first swing piece 8b. The first swing piece 8b is configured to swing at a predetermined time by swinging the second swing piece 8c by a known actuating device.

[0008] The bending die slide 8 (main body 8a)
The tool mounting slide 11 is biased by a spring (not shown) so as to be separated from the wire rod processing space 5. The bending die slide 8 (main body 8a) and the tool mounting slide 11 are made to protrude toward the wire rod processing space 5 at a predetermined time by an actuator (not shown) including a cam and the like, and a force from the actuator is applied. Is not applied, the spring retreats from the wire processing space 5 by the force of a spring (not shown) or the like.

The first line guide 6A and the second line guide 6
B is fixed to the front wall 3 by the same means as the third line guide 6C of Example 2 described later.

The third wire guide 6C is fitted in a recess 17 of a mount 16 fixed to the front wall 3 and having recesses 17 open to the front and upper and lower sides, and the mount 16 will be described in detail below. It is fixed by the means described. Third line guide 6C
Is a main body 2 having recesses 21 open to the front and the upper and lower sides.
0, a pair of left and right line guide pieces 23 fitted in the recess 21 of the main body 20 and having line guide grooves 24 having a semicircular cross-section in mutually opposing portions, and a line fitted in the recess 21 of the main body 20. It has a guide piece sandwiching piece 26.

The main body 20 is composed of two members, a left member 20a and a right member 20b. The side surface of the left member 20a of the main body 20 that abuts the line guide piece holding piece 26 is an inclined receiving surface 28 that faces forward, and the side surface of the line guide piece holding piece 26 that faces the inclined receiving surface 28 is an inclined receiving surface. An inclined contact surface 29 that abuts 28 is formed.
The right member 20b of the main body 20 is fixed to the mounting base 16 by screwing a bolt 31 into a screw hole of the mounting base 16 through a bolt insertion hole formed therein.
On the other hand, the left member 20a of the main body 20 and the wire guide piece holding piece 2
6 is obtained by screwing the bolts 31 into the screw holes of the mount 16 through the bolt insertion holes formed in them.
It is fixed to the mount 16. The pair of left and right line guide piece holding pieces 26 attaches the left member 20a of the main body 20 and the line guide piece holding piece 26 with the bolts 31.
By fixing it to the tilt receiving surface 29,
8, the so-called wedge action acts, and as a result, the line guide piece holding piece 26 receives a force to slide to the right, and as a result, the line guide piece holding piece 26 and the side portion of the right member 20b hold the line guide piece holding piece 26. Fixed.

Embodiment 2 (see FIGS. 4 to 6) In this Embodiment 2, the front means the front side of FIG.
The rear means the back side, the left means the left side in FIG. 4, and the right means the right side in the figure. The third wire guide 6C is attached to the front wall 3, and has a main body 20 having a recess 21 that is open to the front and left and right, and a line guide for the mutually abutting portions fitted into the recess 21 of the main body 20. It has a pair of upper and lower line guide pieces 23 having a groove 24, and a line guide piece holding piece 23 fitted in the recess 21 of the main body 20. Of the main body 20,
The side surface of the line guide piece holding piece 26 that comes into contact with the inclined receiving surface 28 is a forward facing surface, and the side surface of the line guide piece holding piece 26 that faces the inclined receiving surface 28 comes into contact with the inclined receiving surface 28. By contacting the inclined contact surface 29 with the inclined receiving surface 28, the upper and lower line guide pieces 2
3 is sandwiched between the line guide piece sandwiching piece 26 and the side portion of the main body 20.

Each of the upper and lower wire guide pieces 23 of the third wire guide 6C is composed of two members, a wire rod processing space side member 23a and a line feed roller side member 23b. The wire guide piece holding piece 26 is composed of two members, a wire rod processing space side member 26a and a line feed roller side member 26b. With such a configuration, without changing the position of the wire feed roller side member 23b,
The position of the wire rod processing space side member 23a can be independently adjusted with respect to the wire rod processing space 5, and similarly, the position of the wire rod processing space side member 23a is not changed, and the wire feed roller side member 23b is independently adjusted. The position of the wire feed roller 7 can be adjusted. In addition, when a portion of the wire rod processing space side member 23a facing the wire rod processing space 5 (a portion important as an outlet of the wire rod) is damaged or worn, a predetermined portion is provided on the end portion which has been facing the wire feed roller 7 side until now. After processing, the upper and lower wire rod processing space side members 23a are rotated up and down by 180 degrees, and the end portion that has been facing the wire feed roller 7 side is attached toward the wire rod processing space 5 side, so that damage is caused. Worn wire rod processing space side member 23
a can be reused.

First line guide 6A and second line guide 6B
Is the front wall 3 by the same means as the third line guide 6C.
It is fixed to. Note that the first line guide 6A and the second line guide 6B are not divided into two parts on the left and right, unlike the third line guide 6C. In the second embodiment, two pairs of wire feed rollers 7 are provided.

[0015]

[Modifications and the like] Modifications and the like will be described below. The wire guide of the present invention can be attached to a spring manufacturing machine in which a wall corresponding to the front wall 3 is horizontal.

[0016]

According to the present invention, the following effects can be obtained by the above-described configuration. According to the inventions of claims 1 and 3, since the wire guide piece can be firmly and easily fixed by utilizing the wedge action, it is not necessary to have the manufacturing precision as required in the prior art, which results in cost reduction. It can be reduced. According to the inventions of claims 1 and 3, when the pair of left and right line guide pieces having the line guide grooves in the mutually butting portions are worn or damaged, only the line guide pieces need to be replaced, that is, Since the main body and the wire guide piece holding piece can be used as they are, the cost can be reduced also from this point. According to the invention of claim 4, the wire guide piece is composed of two members, that is, a wire rod processing space side member and a line feed roller side member, so that the position of the line feed roller side member is not changed, The position of the wire rod processing space side member can be adjusted independently with respect to the wire rod processing space.
Similarly, without changing the position of the wire processing space side member,
The position of the line feed roller side member can be adjusted independently of the line feed roller.

[Brief description of the drawings]

FIG. 1 is a simplified front view showing a first embodiment of the present invention.

FIG. 2 is a partially crushed enlarged view of a portion A in FIG. 1;

FIG. 3 is a sectional view taken along line III-III of FIG. 2;

FIG. 4 is a simplified front view of a main part showing a second embodiment of the present invention.

5 is an enlarged view of part B of FIG. 4. FIG.

FIG. 6 is a sectional view taken along line VI-VI of FIG. 5;

[Explanation of symbols]

 6C Third line guide 20 Main body 21 Recess 23 Line guide piece 24 Line guide groove 26 Line guide piece sandwiching piece 28 Slope receiving surface 29 Slope contact surface

Claims (4)

(57) [Claims] 1. A body having front and upper and lower recesses, a pair of left and right line guide pieces fitted in the recesses of the body and having line guide grooves at mutually facing portions, and a recess of the body. And a line guide piece sandwiching piece that is fitted in place, and a side surface of the main body that abuts the line guide piece sandwiching piece is an inclined receiving surface that faces forward, and an inclined receiving surface of the line guide piece sandwiching piece. The side surface facing the inclined contact surface is an inclined contact surface that contacts the inclined receiving surface. By contacting the inclined contact surface with the inclined receiving surface, the left and right line guide pieces are separated by the line guide piece holding piece and the side portion of the main body. A wire guide for a spring making machine that is designed to be clamped. 2. The wire guide for a spring manufacturing machine according to claim 1, wherein the main body is composed of two members, a left member and a right member. 3. A main body having a recess opened to the front and left and right, a pair of upper and lower line guide pieces fitted in the recess of the main body and having line guide grooves in mutually facing portions, and a recess of the main body. A line guide piece holding piece to be fitted in place, and a side surface of the main body abutting the line guide piece holding piece is an inclined receiving surface facing forward, and the side receiving surface of the line guide piece holding piece is formed. The side surface facing the inclined contact surface is an inclined contact surface that contacts the inclined receiving surface. By contacting the inclined contact surface with the inclined receiving surface, the upper and lower line guide pieces are separated by the line guide piece holding piece and the side portion of the main body. A wire guide for a spring making machine that is designed to be clamped. 4. The wire guide for a spring manufacturing machine according to claim 3, wherein the wire guide piece is composed of two members, a member for processing a wire rod space and a member for a wire feed roller.