JP3727527B2 - Spring making machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a spring manufacturing machine.
[0002]
[Prior art]
Conventionally, the following are known as this type of spring manufacturing machine.
A wire rod feeding unit and a wire rod machining unit, and at least one of the wire rod feed unit or the wire rod machining unit is movable back and forth. The wire rod machining unit includes a casing having a vertical front wall, and A final wire guide fixed to the front wall having a wire processing space formed in front of the front wall and one wire passage through which the wire sent out toward the wire processing space passes, and the wire processing space At least one bending die slide which faces the final wire guide and is provided on the front wall so as to be able to advance and retreat with respect to the wire material processing space, and at least one slide which is provided on the front wall so as to be able to advance and retract with respect to the wire material processing space. The wire rod feeding unit includes a casing having a vertical front wall and the casing. And at least a pair of wire rod feed rollers that are rotatably provided on the front wall of the cable and feed the wire rod toward the final wire rod guide while sandwiching the wire rod. At least two annular grooves for wire rods are formed, and by adjusting the front / rear position of the wire rod feeding unit or the wire rod machining unit that can move back and forth, the wire rod feed portion is in contact with each other. It is known that each wire passage formed by the annular groove is sequentially connected to the wire passage of the final wire guide (see Japanese Patent Application Laid-Open No. 11-33659).
[0003]
[Disadvantages of the prior art]
The conventional spring manufacturing machine has the following drawbacks.
In a conventional spring manufacturing machine, the final wire guide is fixed to the wire processing unit, that is, the final wire guide cannot be changed relative to the tool such as a bending die. Therefore, there has been a drawback that the position of the wire sent to the wire processing space with respect to a tool such as a bending die cannot be changed, and the spring processing state cannot be changed by one spring manufacturing machine.
[0004]
[Means for eliminating the above-mentioned drawbacks]
The present invention employs the following means in order to eliminate the above disadvantages.
According to the first aspect of the present invention, the wire rod feeding unit can be moved back and forth in the wire rod processing unit, and the wire rod processing unit includes a machine frame having a vertical front wall and a wire rod processing space formed in front of the front wall of the machine frame. A bending die slide provided on the front wall so as to be movable forward and backward with respect to the wire processing space, and a tool mounting slide provided on the front wall so as to be movable forward and backward with respect to the wire processing space. The feed unit includes a longitudinally moving body having a vertical front wall, a final wire guide having a wire passage fixed to the front wall of the longitudinally moving body and guiding the wire sent toward the wire processing space, and the front wall of the longitudinally moving body And at least a pair of wire feed rollers that feed the wire toward the final wire guide while pinching the wire.
[0005]
【The invention's effect】
The present invention has the following effects by the configuration as described above.
According to the first aspect of the present invention, the wire rod feeding unit having the final wire rod guide and the wire rod feeding roller is moved back and forth with respect to the wire rod machining unit, that is, the wire rod fed into the wire rod machining space, such as a bending die. By changing the front-rear position with respect to the tool, the spring processing state of the spring manufacturing machine can be improved by changing the spring processing state with a single spring manufacturing machine.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below.
In this description, “front” refers to the front side of FIG. 1, “back” refers to the back side, “left” refers to the left side of FIG. 1, and “right” refers to the right side of FIG.
[0007]
The spring manufacturing machine 1 includes a base 3, a wire rod feeding unit 4 that can be moved back and forth by means described later at the center in the left-right direction of the base 3, and a wire rod feeding unit 4 that is fixed to the base 3. And a wire rod processing unit 6 having a space 5 opened before and after fitting.
[0008]
The wire rod processing unit 6 includes a machine frame 8 having a vertical front wall 9 and the space 5, a wire rod processing space 11 formed in front of the front wall 9 of the machine frame 8, and a wire rod on the front wall 9. It has a bending die slide 12 provided so as to be movable back and forth with respect to the machining space 11, and a required number of tool mounting slides 13 provided on the front wall 9 so as to be able to advance and retract relative to the wire rod machining space 11. .
The bending die slide 12 and the tool mounting slide 13 are actuated by a known driving device (not shown), and the bending die slide 12 is attached with a bending die (not shown). A tool (not shown) such as a cutter or a molding tool is attached to the.
[0009]
The wire rod feeding unit 4 includes a longitudinally moving body 16 formed of a casing having a vertical front wall 17 and a wire rod that is fixed to the upper portion of the front wall 17 of the longitudinally moving body 16 and that is fed toward the wire rod processing space 11. A final wire guide 19 having a passage (not shown), at least a pair of wire feed rollers 20 that are rotatably provided on the front wall 17 and feed the wire toward the final wire guide 19 while pinching the wire, and a wire feed roller 20 And an auxiliary wire guide 21 having a wire passage (not shown) provided on the front wall 17 so as to be positioned therebetween.
[0010]
The longitudinally moving body 16 is moved back and forth by a known actuating device 22 having a ball screw mechanism and a motor. The wire feed roller 20 rotates so as to feed the wire toward the final wire guide 19 by the operation of a known actuating device (not shown) provided in the longitudinal moving body 16.
[0011]
With such a configuration, the wire rod feeding unit 4 having the final wire rod guide 19 and the wire rod feeding roller 20 is moved back and forth with respect to the wire rod machining unit 6, that is, the wire rod fed into the wire rod machining space 11 [FIG. A single spring can be manufactured by changing the front-rear position of a tool such as a bending die with respect to a dashed-dotted line W (the dashed-dotted line W indicates a virtual vertical plane parallel to the front wall 17 including the center line of the wire). The machine can change the machining state of the spring and improve the spring machining performance of the spring manufacturing machine.
[0012]
The spring itself is manufactured in the same manner as a conventional spring manufacturing machine, but as described above, by moving the wire feed unit 4 back and forth, the spring processing state is changed and the spring processing performance of the spring manufacturing machine is improved. It can be made.
[0013]
[Modifications]
A description will be given below of modified examples.
(1) The mechanism for moving the wire feeding unit 4 back and forth is arbitrary.
(2) The number of tool mounting slides 13 is arbitrary.
[Brief description of the drawings]
FIG. 1 is a partially fragmented front view showing an embodiment of the present invention.
FIG. 2 is a cross-sectional view taken along the line II-II in FIG.
[Explanation of symbols]
3 Base 4 Wire rod feeding unit 5 Space 6 Wire rod machining unit 8 Machine frame 9 Front wall 11 Wire rod machining space 12 Bending die slide 13 Tool mounting slide 16 Front and rear moving body 17 Front wall 19 Final wire rod guide 20 Wire rod feed roller 21 Auxiliary wire rod guide 22 Actuator

Claims (1)

A wire rod feeding unit is movable back and forth in the wire rod processing unit. The wire rod processing unit includes a machine frame having a vertical front wall, a wire rod processing space formed in front of the front wall of the machine frame, and a wire rod on the front wall. A bending die slide provided so as to be movable back and forth with respect to the processing space; and a tool mounting slide provided on the front wall so as to be freely advanced and retracted relative to the wire material processing space. A longitudinally moving body having a wall, a final wire rod guide that is fixed to the front wall of the longitudinally moving body, has a wire rod path that guides the wire rod fed toward the wire rod processing space, and is provided rotatably on the front wall of the longitudinally moving body. A spring manufacturing machine having at least a pair of wire feed rollers that feed the wire toward the final wire guide while pinching the wire.

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