KR20000039291A - Device for producing spring - Google Patents

Abstract

PURPOSE: A device for producing coil springs is provided to improve productivity while not requiring a skilled operator and to produce a coil spring with a small diameter by automating the producing process of the coil springs. CONSTITUTION: A device(100) for producing coil springs contains a chuck driving instrument(150). The chuck driving instrument contains a first cylinder tool(152) for progressing or retreating a chuck(120) or a hollow shaft(122) connected to the chuck. Herein, guide rods(114) are installed on a body(110) for containing a moving stand(160). The moving stand moves along the guide rods for guiding wires such as a coil winding around a core material. Moreover, a detecting instrument(180) is installed on the body for detecting the moving stand. And, a cutter(190) is installed at one end of the body for cutting a coil spring for a desired length. A control box(200) is installed on one side of the body for controlling the movements of each instrument.

Description

Spring manufacturing device

The present invention relates to a spring manufacturing apparatus, and more particularly, to a spring manufacturing apparatus for winding a wire or the like to make a coil spring of a predetermined diameter.

Conventionally, the coil spring is manufactured by hand using a rod or a simple tool for winding a coil in a state where most skilled workers merely heat the coil, but the productivity is low, and the unskilled person cannot make the coil spring. Coil spring manufacturing apparatus has been developed to overcome the disadvantages of manual labor and to increase the productivity and to make coil springs even for unskilled people. Patent Application No. 33720 (Dec. 1994, Dec. 12, 1994) And was registered under the registered number 134716.

The spring manufacturing apparatus of the prior application has the advantage of freely adjusting the lead angle and pitch of the coil spring, but after the coil is wound around the mandrel, the coil is cut and one end of the mandrel is wound off the mandrel support. After the coil spring is removed from the mandrel, it is necessary to fix the coil to the required part and start the coiling operation again, which is complicated and difficult and the productivity decreases. In addition, the inner diameter of the coil spring to be made can not be made as small as 1-2mm, it is impossible to automate the manufacturing process of the coil spring.

It is an object of the present invention to make coil springs continuously by automating the manufacturing process of coil springs, thereby dramatically improving productivity and making it easy for beginners to make coil springs, especially coil springs with very small diameters. To provide a coil spring manufacturing apparatus that can be made.

1 is a perspective view showing the installation state of the coil spring production apparatus according to the present invention,

2 is a plan view of the device body of FIG.

3 is a front view of the device body of FIG. 1;

4 is a view for explaining the chuck rotation means;

5 is a view showing a cutter;

6 is a view for explaining the principle of movement of the moving table.

Explanation of symbols on the main parts of the drawings

10: line 12: coil spring

100: coil spring manufacturing apparatus 110: the body

112: chuck support 114: guide rod

120: chuck 122: hollow shaft

130: heartwood 140: chuck rotation means

142: motor 144: pulley

145: rotation axis 146, 147: belt

150 Chuck Driving Means 152: First Cylinder Mechanism

160: moving table 162: pre-insertion unit

164 guide section 170: moving table transfer means

172: second cylinder mechanism 180: sensing means

182: support rod 190: cutter

200: control box 210: support

212: roll

An object of the present invention is a spring manufacturing apparatus for winding a wire of a predetermined material to make a coil spring, a pair of chucks rotatably installed at opposite positions on a predetermined body and capable of holding a predetermined core material as necessary. , Chuck rotation means for rotating the chuck at the same speed as needed, chuck driving means for adjusting the clamping and unclamping state of one side of the chuck, the guide rod on the body while guiding the winding wire to the core material The main body includes a moving table, a sensing means for detecting a location of the moving table, a moving table conveying means for moving the moving table to a required position, and a cutter for cutting the coil spring formed by winding the wire as necessary. Achievable by spring manufacturing apparatus.

The chuck rotation means comprises a motor, a rotating shaft having at least three pulleys, and a belt for transmitting the power of the motor to the chucks on both sides via the rotation shaft, and the chuck driving means moves the chuck on one side as necessary. Or it is good to comprise the 1st cylinder mechanism which can be reversed.

The guide rods are installed parallel to each other with a predetermined distance between the pair of chucks, and the movable rod is coupled to the guide rods so that they can be moved left and right. It is more preferable to provide a guide portion for guiding the movement path of the line to be wound around the core at the position so that the line can be moved to one side by the tension generated by winding the core.

The sensing means is installed facing each other at a predetermined interval, and the moving table conveying means further comprises a second cylinder mechanism for retracting the moving table to the required position when the moving table reaches a predetermined position and detected by the detecting means It is preferable to set it as the structure, and it is more preferable to set it as the structure provided with the solenoid mechanism for moving the cutting blade and one side of the cutting blade which were installed facing the moving path of the completed spring.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing the installation state of the coil spring manufacturing apparatus according to the present invention, Figure 2 is a plan view of the device body of Figure 1, Figure 3 is a front view of the device body of Figure 1, Figure 4 for explaining the chuck rotation means Drawing.

As can be seen in Figures 1 to 4, the spring manufacturing apparatus 100 according to the present invention has a body 110 having a substantially rectangular shape. The body 110 is intended to be able to install various necessary components in a desired position. On the body 110, a pair of chucks 120 are installed to face each other at predetermined intervals through the chuck support 112. The pair of chucks 120 are installed so that they can rotate in place. The pair of chucks 120 are intended to hold the core material 130 to which the wire 10 such as a coil is wound. That is, the chuck 120 can hold the core material 130 on both sides, and rotate in the same direction and at the same speed.

As can be seen in Figure 4 the coil spring manufacturing apparatus 100 according to the present invention is provided with a chuck rotation means (140). The chuck rotation means 140 is to rotate the chuck 120 in the required direction, if necessary, should be able to rotate the chuck 120 at the same speed. The chuck rotation means 140 is a motor 142, a rotation shaft 145 having at least three pulleys 144, and the power of the motor 142 to the chuck 120 on both sides via the same rotation shaft 145. It consists of a configuration having a belt (146, 147) and a hollow shaft 122 connected to the chuck 120 of one side for transmitting. That is, as shown, when the chuck 120 on both sides is rotated through the same rotation shaft 145, both chuck 120 can be rotated at the same speed.

Coil spring manufacturing apparatus 100 according to the present invention is provided with a chuck driving means (150). The chuck driving means 150 is to allow the chuck 120 on the left side in FIGS. 1 to 4 to clamp or unclamp the core material 130. A first cylinder mechanism 152 capable of advancing or reversing the hollow shaft 122 connected to 120 may be configured, which may take the general configuration of the same type as is generally known. . That is, as can be seen in the drawing, the connector 154 having a portion surrounding the hollow shaft 122 to which the left chuck 120 is connected is rotatably installed around one support point, and the opposite end of the support point is first installed. The hollow shaft 122 is linearly moved by a predetermined distance in accordance with the operation of the first cylinder mechanism 152 by connecting to the rod 153 of the cylinder mechanism 152. If the inner peripheral surface is provided with a cylindrical body having a tapered hole, and the outer peripheral surface of one side of the shaft 122 is formed to correspond to it, depending on the coupling degree of the chuck 120 bit or the core material 130 or You can configure it to let go. Of course, this chuck 120 may be configured in other forms. This is because the core material 130 may be clamped or unclamped only at a predetermined time, and may be rotated at the same speed as the chuck 120 of the other side while the core material 130 is clamped.

As shown, the guide rod 114 is installed side by side at a predetermined interval on the body 110, the movable rod 160 is installed on the guide rod 114. The movable table 160 is intended to guide the line 10 such as a coil wound on the core material 130 while moving along the guide rod 114. The movable table 160 is a part of a large feature of the present invention, and the line inserting portion 162 into which the wire 10, such as a coil, supplied to the core material 130 that is bitten by the chuck 120 and is inserted therein; , The line 10 is configured to include a guide portion 164 for guiding the movement path of the line 10 so that the line 10 can be wound around the core line 130 at a position biased to one side from the line insertion portion 162. The guide portion 164 may be configured by rotatably installing the rollers in the required position. This can be seen in detail with reference to FIG. 6. Accordingly, the movable table 160 is moved to one side by the tension generated as the line 10 is wound around the core wire 130. That is, in the present invention, a separate device for moving the movable table 160 from left to right may not be necessary. As shown, the coil spring manufacturing apparatus 100 according to the present invention is provided with a moving table conveying means 170 for moving the moving table 160 to the required position. This is to enable the moving table 160 to be moved from right to left in FIGS. 1 to 4. That is, the conveying means 170 is to return the movable table 160 after the line 10 is wound around the core material 130 while the movable table 160 is moved to the right. Of course, in some cases, it may be configured to move left and right by using a separate motor and screw to move the movable table 160, in which case more cost to manufacture and maintain the spring manufacturing apparatus This will take

As shown, the sensing means 180 is installed on the body 110. The sensing means 180 is for detecting the position of the movable table 160, it is good to install a pair at a predetermined interval. In addition, the sensing means 180 is more preferable to be installed on a separate support rod 182 to adjust the gap.

The cutter 190 is installed at one end of the body 110. The cutter 190 is for cutting the coil spring 12 made by winding the wire 10 to a desired length. This cutter 190 is described in more detail later with reference to FIG. 5.

As shown, the control box 200 is installed on one side of the body 110. This is to control the operation of each means with the help of the sensing means 180. An auxiliary support 210 is provided in front of the side body 110 of the control box 200, and a roll 212 on which a wire 10, such as a wire, is wound thereon, is installed to be able to rotate in place. The wire 10 wound around the roll 212 is supplied to the moving table 160 through the plurality of auxiliary tools 214. The support 210 and the assisting tool 214 is a part that can be modified in other various forms.

The inclined plate 216 is installed on one side of the body 110. The inclined plate 216 is to allow the cut coil spring 12 to be stored in a certain amount.

5 is a view showing a cutter.

Cutter 190 as shown is to be installed on one side end on the body 110, to cut the coil spring 12 to the required length. The cutter 190 has a pair of cutting blades 192 which are provided to face each other on the movement path of the coil spring 12. Among them, the cutting blade 192 of one side is installed to be linearly movable, and is receiving a force to one side through the elastic member 194. The solenoid mechanism 196 is installed behind the cutting blade 192 on one side. The solenoid mechanism 196 is for cutting the coil spring 12 by advancing the cutting blade 192 on one side at a predetermined time. That is, when a predetermined signal is input from the sensing means described above, the rod 198 protrudes toward the front and momentarily pushes the cutting blade 192 on one side, and then retracts a large number. Accordingly, the coil spring 12 between the two cutting blades 192 is cut. The cutting blade 192 on one side is returned to its original position by the elastic member 194. Of course, such a cutter 190 may be configured in other forms. This is because it is only necessary to cut the coil spring 12 at a necessary time.

6 is a view for explaining the principle of movement of the moving table.

The movable table 160 as shown is coupled to the guide rod 114 is installed to move left and right. The movable table 160 is a line inserting portion 162 into which the line 10 is inserted and a line 10 so that the line 10 can be wound around the core wire 130 at a position biased to one side from the line inserting portion 162. And a guide part 164 for guiding a movement route of the same. As the guide part 164, several rollers arrange | positioned as shown may be used. In some cases, other types of fixing members having less frictional force may be used instead of the rollers. The movable table 160 can be moved in the direction of the arrow by the tension generated as the line 10 is wound around the core wire (130).

That is, the line 10 wound on the roll 212 in FIG. 1 passes through a predetermined path as shown, and has sufficient tension with the weight 14 or the like so that the line inserting portion 162 of the movable table 160 is provided. The end is connected to the core wire 130 through the guide portion 164, and the core wire 130 is driven by the motor 142 in a state of being bitten by the chuck 120, and both chuck 120 It rotates at the same speed in the same direction. Accordingly, the line 10 is wound around the outer circumferential surface of the core wire 130. As the wire 10 is wound around the core wire 130, tension is generated in the wire 10 and the movable table 160 is moved to the right by the principle described in FIG. 6, and over a predetermined length of the core wire 130. Coil spring 12 is made. In this process, when the movable table 160 moves along the guide rod 114 to contact one side sensing means 180, the driving of the motor 142 is stopped and at the same time, the first cylinder mechanism 152 operates to chuck one side. The state 120 unclamps the core wire 130. Of course, the chuck 120 on the opposite side maintains the clamped state of the core wire 130. At the same time, the second cylinder mechanism 172 constituting the moving table conveying means 170 retracts the moving table 160 to its initial position and returns. As the movable table 160 is retracted, the coil spring 12 formed on the outer circumferential surface of the core wire 130 is separated from the core wire 130 and exits toward the inclined plate 216 via the chuck 120 and the hollow shaft 122. . When the moving table 160 is fully retracted and comes into contact with the sensing means 180 installed on the other side, the cutter 190 operates to cut the coil spring 12, and at the same time, the first cylinder mechanism 152 operates to reconnect the wire 10. ) Is made to clamp the core wire 130 is wound, and at the same time to drive the motor 142 again, the above process is repeated.

Of course, the length of the coil spring 12 to be cut can be adjusted first by adjusting the interval of the sensing means 180, and in order to make the coil spring 12 longer than the interval between the two sensing means 180, The cutter 190 is operated after the movable table 160 reciprocates a predetermined number of times, and the cutting length can be adjusted by adjusting the interval of the sensing unit 180.

As can be seen from the above description, in the case of using the coil spring manufacturing apparatus according to the present invention, the coil spring can be automatically and continuously made, and the productivity is improved, and the coil spring of the desired diameter is used when using a steel wire having a small diameter as a core wire. In particular, coil springs with an inner diameter of 1 mm or less can be made. In addition, it is possible to obtain an advantage that the cutting length of the coil spring can be easily adjusted by adjusting the interval of the sensing means.

Claims (4)

In the spring manufacturing apparatus for winding a wire of a predetermined material to make a coil spring, A pair of chucks rotatably installed at opposite positions on a predetermined body and capable of holding a predetermined core material as necessary; Chuck rotation means for rotating the chuck at the same speed as needed; Chuck driving means for adjusting the clamping state and the unclamping state of the one side of the chuck; A moving table for guiding the line wound on the core while moving along the guide rod on the body; Sensing means for sensing the position of the movable table; Moving table transfer means for moving the moving table to a required position; And Spring manufacturing apparatus comprising a cutter for cutting the coil spring made by winding the line as needed. According to claim 1, wherein the chuck rotating means comprises a motor, a rotating shaft having at least three pulleys and a belt for transmitting the power of the motor to the chucks on both sides via the rotating shaft, a hollow shaft connected to one chuck The chuck driving means is a spring manufacturing apparatus, characterized in that provided with a first cylinder mechanism capable of advancing or retracting the chuck on one side as necessary. According to claim 1 or 2, wherein the guide rod is a pair is installed in parallel with a predetermined distance between the pair of chuck, the movable table is coupled to the guide rod is installed to move left and right and the line is inserted And a guide portion for guiding a moving path of the line so that the line is wound around the core at a position biased to one side from the line inserting portion and the line is wound by the tension generated as the line is wound around the core. Spring manufacturing apparatus, characterized in that configured to be moved to. The method of claim 3, wherein the sensing means is provided with a pair of facing each other at a predetermined interval, the movable stage conveying means retracts the movable stage to the required position when the movable stage reaches a predetermined position and is detected by the sensing means It further comprises a second cylinder mechanism for making, wherein the cutter is a spring manufacturing, characterized in that provided with a solenoid mechanism for moving the cutting blade and the cutting blade installed facing each other on the movement path of the completed spring Device.