JP2003033839A - Device for manufacturing spring - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve machining performance of a device for manufacturing wire rods by moving the position of an outlet 17a of a final wire rod guide 17 according to need. SOLUTION: A wire rod feed unit 14 reciprocates in a direction parallel to a center line W of a wire rod (refer to Figure 1) by the movement of a bar cart 11 which moves right and left.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spring manufacturing machine.

[0002]

2. Description of the Related Art Conventionally, the following types of spring manufacturing machines have been known. Having a wire rod feeding unit and a wire rod machining unit, at least one of the wire rod feeding unit or the wire rod machining unit is movable back and forth, the wire rod machining unit, a casing having a vertical front wall, and of this casing A final wire rod guide fixed to the front wall, which has a wire rod processing space formed in front of the front wall and one wire rod passage through which the wire rod sent toward the wire rod processing space passes, and the wire rod processing space At least one bending die slide facing the final wire rod guide and provided on the front wall so as to move forward and backward with respect to the wire rod working space, and at least one slide provided on the front wall so as to move forward and backward with respect to the wire rod working space. It has a cutter mounting slide and the wire rod feeding unit,
It has a casing having a vertical front wall, and at least a pair of wire rod feed rollers that are rotatably provided on the front wall of the casing and feed the wire rod toward the final wire rod guide while pinching the wire rod. At least two annular grooves for wire rods are formed on the outer peripheral surface of the feed roller, and by adjusting the front-back position of the unit that can be moved back and forth among the wire rod feed unit or the wire rod processing unit, It is known that each wire rod passage formed by the wire rod annular groove at the portion where the wire rod feed roller abuts is sequentially connected to the wire rod passage of the final wire rod guide (JP-A-11-3365).
No. 9). The conventional spring manufacturing machine has an advantage that it can quickly respond to a change in the diameter of the wire set therein.

[0003]

Disadvantages of the Prior Art The conventional spring manufacturing machine has the following drawbacks. In the conventional spring manufacturing machine, the final wire rod guide is fixed to the wire rod processing unit side, that is, the final wire rod guide cannot change its relative position with a tool such as a bending die. Therefore, there is a drawback that the position of the wire rod fed into the wire rod processing space with respect to a tool such as a bending die cannot be changed to bring about a change in the spring machining state with one spring manufacturing machine.

[0004]

[Means for Solving the Disadvantages] The present invention employs the following means in order to eliminate the above disadvantages. The invention of claim 1 sends a wire rod from the final wire rod guide into the wire rod processing space, and a predetermined or predetermined state of the wire rod fed into the wire rod processing space or projected to the wire rod processing space In a spring manufacturing machine that processes and manufactures springs, a wire rod feeding unit includes a casing, a final wire rod guide fixed to the casing for guiding a wire rod fed toward a wire rod processing space, and rotatably provided in the casing. A wire rod feed roller that feeds the wire rod toward the final wire rod guide while pinching the wire rod, and the wire rod feeding unit reciprocates in a direction parallel to the center line of the wire rod. It is provided on the frame. According to a second aspect of the present invention, the wire rod feeding unit is provided in the machine frame so as to be reciprocally movable in a direction parallel to the center line of the wire rod feeding roller.

[0005]

The present invention has the following effects due to the above-described structure. According to the invention of claim 1, the position of the outlet of the final wire rod guide can be easily changed. Therefore, in more detail, the position of the outlet of the final wire rod guide is compared with that of the tool whose position is adjusted. Since it can be easily changed, the position of the outlet of the final wire rod guide can be moved as necessary to improve the spring machining performance of the spring manufacturing machine. According to the invention of claim 2, since the wire rod feeding unit is provided in the machine frame so as to be capable of reciprocating in the direction parallel to the center line of the wire rod feeding roller, the position of the outlet of the final wire rod guide is set to the wire rod. It can also be moved in a direction orthogonal to the center line of, and the spring processing performance of the spring manufacturing machine can be further improved.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below. In this description, the front means the front side in FIG. 1, the rear means the back side, the left means the left side in FIG. 1, and the right means the right side in FIG.

The machine frame 2 of the spring manufacturing machine 1 has a vertical front wall 3, and a wire rod processing space 5 is formed in front of the front wall 3.

A bending die slide 7 and a required number of tool attachment slides 8 are provided on the right side of the front wall 3 so as to be movable back and forth with respect to the wire processing space 5. The bending die slide 7 and the tool mounting slide 8 are operated by a known drive device (not shown),
A bending die (not shown) is attached to the bending die slide 7, and a tool (not shown) such as a cutter or a forming tool is attached to the tool attachment slide 8.

A pair of front and rear guide rails 10 whose longitudinal directions are oriented in the left-right direction are provided on a left horizontal base portion 2a of the machine frame 2, and a left-right moving base 11 is provided along these guide rails 10.
Are provided so as to be movable left and right (see arrow A in FIG. 1).
The left-right moving table 11 is operated by a known drive device (not shown).

A pair of left and right guide rails 13 whose longitudinal direction is oriented in the front-rear direction are provided on the left-right moving table 11, and a wire rod feeding unit 14 is movable back and forth along these guide rails 13 (see arrow B in FIG. 2). It is provided in. The wire rod feeding unit 14 is operated by a known driving device (not shown).

The wire rod feeding unit 14 guides the casing 16 which is configured to move back and forth along the guide rail 13 and the wire rod which is fixed to the casing 16 and is fed toward the wire rod processing space 5. The final wire rod guide 17 and at least a pair of wire rod feed rollers 18 that are rotatably provided in the casing 16 so as to be exposed in front of the final wire rod and that feed the wire rod toward the final wire rod guide 17 while sandwiching the wire rod (the center line is the front-back direction). Facing the direction). The wire rod feed roller 18 is rotated by a known drive device (not shown) provided in the casing 16 so as to feed the wire rod toward the final wire rod guide 17.

With the above-described structure, the wire rod feeding unit 14 is adapted to reciprocate in the direction parallel to the center line W (see FIG. 1) of the wire rod when the left and right moving base 11 moves left and right. It is configured to reciprocate in the direction parallel to the center line of the feed roller 18 (front-back direction).
Then, by moving the wire rod feeding unit 14 (the wire rod feeding unit 14 having the final wire rod guide 17) to the left, right, front and back, the final wire rod guide 17
It is possible to easily change the position of the outlet 17a of the tool provided on the bending die slide 7 or the tool mounting slide 8 which is adjusted in position. Needless to say, the shape of the machine frame 2 is adjusted so that the final wire rod guide 17 does not collide with or buffer the machine frame 2.

The spring itself is manufactured in the same manner as the conventional spring manufacturing machine, but as described above, by moving the wire rod feeding unit 14 left and right and back and forth, the working state of the spring is changed and the spring manufacturing machine is changed. The spring machining performance of No. 1 can be improved.

[0014]

[Modifications, etc.] Modifications will be described below. (1) The mechanism for moving the wire rod feeding unit 14 left and right and back and forth is arbitrary. (2) The number of tool mounting slides 8 is arbitrary.

[Brief description of drawings]

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

FIG. 2 is a view taken along the line II-II of FIG.

[Explanation of symbols]

1 Spring making machine 5 Wire rod processing space 11 Left and right moving base 14 Wire rod feeding unit 16 casing 17 Final wire rod guide 17a exit 18 Wire feed roller

Claims (2)

[Claims] 1. A wire rod is sent from a final wire rod guide to a wire rod processing space, and the wire rod which has been sent out to the wire rod processing space or is being sent out is subjected to predetermined processing by a tool protruding in the wire rod processing space or a protruding state. In a spring manufacturing machine for manufacturing a spring by applying a wire rod, a wire rod feeding unit is rotatably provided in a casing, a final wire rod guide fixed to the casing for guiding a wire rod fed toward a wire rod processing space, and a casing. , Having at least a pair of wire rod feed rollers that feed the wire rod toward the final wire rod guide while pinching the wire rod, and the wire rod feeding unit is reciprocally movable in a direction parallel to the center line of the wire rod. A spring manufacturing machine provided. 2. The spring manufacturing machine according to claim 1, wherein the wire rod feeding unit is provided in the machine frame so as to be reciprocally movable in a direction parallel to the center line of the wire rod feeding roller.