JP3060922U - Wire rod forming mechanism - Google Patents

Abstract

(57) [Summary] [PROBLEM] To reduce the cost of a forming cutter unit by performing a predetermined angle rolling on a metal wire and performing press forming of various angles and directions on the metal wire by a small number of forming cutter units. The present invention provides a wire forming mechanism capable of performing the following. SOLUTION: The composition is mainly composed of a wheel guide device 1, a wire turning mechanism 2, a transmission device 3, and a molding mechanism 4. The turning mechanism 2 includes a pinching head 21 that rolls under control of a driving device together with the wheel guide device 1, and the driving device controls pinching to the metal wire 5. The transmission 3 includes an upper transmission roller 31 and a lower transmission roller 32 that correspond to each other. The upper transmission roller 31 controls the lower transmission roller 32 and controls the approach or separation of the two. The base 41 of the molding mechanism 4 includes the molding cutter unit 4
2, the molding cutter unit 42 is driven, and press-molds the metal wire 5 sent out.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a kind of wire rod forming mechanism. In particular, a type of metal wire rod to be formed can be rolled at a predetermined angle, and a small number of forming cutter units can perform press forming at various angles and directions on the metal wire. The present invention relates to a wire rod forming mechanism capable of reducing costs.

[0002]

[Prior art]

 Metal wires are molded into various products depending on the degree of curvature or bending angle. At this time, the known method requires the same number of molding cutter units as the product, and furthermore, it is necessary to arrange each molding cutter unit at an angular position to be molded. Therefore, if a structure has a large number of bending angles, it is necessary to use a considerable number of molding cutter units, and the cost of the molding cutter unit becomes very high. Moreover, installation and removal of the cutter unit wastes a great deal of time, which is inconvenient. Furthermore, if a different product is to be manufactured, it is necessary to adjust the press angle of the molded cutter unit, which requires a great deal of manpower and time and is completely uneconomical. As described above, the known metal wire rod forming mechanism has many disadvantages.

[0003]

[Problems to be solved by the invention]

 In order to remedy the various disadvantages of the known structure, the present invention has an object to provide a wire rod forming mechanism. That is, the metal wire to be formed is rolled at a predetermined angle, and the metal wire can be press-formed at various angles and directions by a small number of forming cutter units. There is no need to constantly adjust the position, just change the computer program according to the angle at which the metal wire is to be rolled, saving material costs for the molding cutter unit, as well as manpower and time costs. be able to.

[0004]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention provides the following wire forming mechanism. Mainly, in the feeding process of the metal wire, the wheel guide device, the transmission device, the turning mechanism, and the forming mechanism are installed and composed in order. The turning mechanism includes a clamping head. The holding head and the wheel guide device rotate simultaneously under the control of the driving device, and the holding head is controlled whether or not to hold the metal wire. The transmission includes a plurality of upper transmission rollers and lower transmission rollers whose roller surfaces correspond to each other. The movement of the upper transmission roller is controlled whether or not it contacts the lower transmission roller. Thus, the metal wire is sandwiched and sent out in the direction of the molding mechanism. The upper and lower transmission rollers are in a non-contact state when the rolling mechanism is rolling. The molding mechanism installs a plurality of molding cutter units on the base, and the molding cutter unit is driven to perform press molding on the sent metal wire, and the metal wire is driven correspondingly. Perform multi-angle rotation.

[0005]

[Embodiment of the invention]

 As shown in FIG. 1, in the present invention, in the delivery process of the metal wire 5 used in the manufacture of the product, the wheel guide device 1, the transmission device 3, the turning mechanism 2, and the forming mechanism 4 are sequentially installed and formed. As shown in FIG. 4, the transmission 3 includes a plurality of upper transmission rollers 31 and a lower transmission roller 32. The roller surfaces of the upper and lower transmission rollers 31 and 32 correspond to each other, and their rotation is driven by a separately installed system (not shown). A cylinder 33 is installed on the roller shaft of each upper transmission roller 31, and the lower transmission roller 32 corresponding to the upper transmission roller 31 is controlled by the operation of the cylinder 33 so that the two approaches or separates from each other. A guide rail 34 is provided on one side between the upper and lower transmission rollers 31 and 32.

As shown in FIG. 1, the wheel guide device 1 includes two mutually perpendicularly corresponding pedestals 11. The pedestal 11 is movably connected to the fixed pedestal 13 by the center shaft 111 and can freely roll. On the pedestal 11, they are arranged in two rows in such a manner that they are spaced from each other, and a plurality of conductive wires 12 are installed in a movable state. As shown in FIG. 2, the turning mechanism 2 includes a holding head 21 and a driving device. The clamping head 21 has a plurality of clamping and fixing blocks 211 (see FIG. 3) installed in the cylinder. The holding head 21 is provided with an air supply pipe 211. As a result, the compressed air is passed through the air supply pipe 211 to the inside of the holding head 21 to control each holding and fixing block 210 toward the center, and at the same time, to approach and hold the metal wire 5, or from the metal wire 5. It can be separated and the pinch can be released. The required operation method is similar to the structure of the clamping head of a general lathe, and the operation of controlling the clamping and fixing block 210 using a cylinder belongs to a known technique, and thus will not be described in detail. On the other hand, the driving device includes a driven belt roller 22 that connects the holding head 21 and the base 11 of the wheel guide device 1. Further, a thermomotor 24 is installed, and a driving belt roller is installed on a main shaft of the thermomotor 24, and a belt 23 is connected between the driving belt roller and the driven belt roller 22. The thermomotor 24 is controlled by a computer program for the rolling speed and the rolling angle, and the thermomotor 24 is used to simultaneously rotate the base 11 and the clamping head 21 via the belt 23. Drive.

As shown in FIGS. 1, 5, and 6, the molding mechanism 4 includes a disc-shaped base 41. A head 411 having a center hole is installed at the center of the base 41, and the hole diameter of the center hole can pass the metal wire 5 just. The base 41 has a plurality of radially arranged forming cutter units 42 installed thereon, and the forming cutters 425 installed by the respective forming cutter units 42 are directed toward the center of the base 41. The molding cutter unit 42 includes a slide table 421 fixed to the base 41, and a slide block 422 is installed in the slide table 421, and a molding cutter 425 is fixed to a front end of the slide block 422. A plurality of springs 424 are connected between the slide block 422 and the slide base 421, and a cam 423 is installed on the slide base 421 behind the slide block 422. The cam 423 is driven and rotated by another mechanism. By rotating the cam 423, the slide block 422 can be driven to move toward the center of the base 41 in the slide base 421, and the slide block 422 is pulled back by the spring 424. Can be. Thus, the simultaneous reciprocating motion of the slide block 422 and the molding cutter 425 is controlled.

In the overall mechanism of the present invention, for example, a metal wire 5 such as a spring wire goes around the conductive wire ring 12 and passes over a guide rail 34 between the lower transmission rollers 31 and 32 above the transmission device 3. . Then, it penetrates through the clamping head 21 of the transfer mechanism 2 and finally penetrates through the center hole of the head 411 of the molding mechanism 4. In this process, the cylinder 33 is used to move the upper transmission roller 31 downward, and simultaneously pinch and fix the metal wire 5 together with the lower transmission roller 32, thereby rolling and sending out the metal wire 5. Moreover, when the upper and lower transmission rollers 31 and 32 send out the metal wire 5, the metal wire 5 is sent out because the holding and fixing block 210 of the holding head 21 is in a loose state. Since the rotation angles of the upper and lower transmission rollers 31 and 32 are controlled by a computer program, the length at which the metal wire 5 is delivered is also controlled. After the metal wire 5 is sent out and protrudes from the head 411 by a predetermined length, a set of forming cutter units 42 among them operates and presses the metal wire 5 using the forming cutter 421. Mold and bend. After the molding cutter unit 42 recovers the original position, the metal wire rod 5 of a specific length is further sent out and made to protrude from the head 411. In this way, the clamping and fixing block 210 of the clamping head 21 drives the clamping head 21 and the wheel guide device 1 again by the thermomotor 24 after clamping the metal wire 5 and simultaneously rotates the predetermined angle. At this time, the metal wire 5 is also rotated at a predetermined angle, and the metal wire 5 is press-formed by another set of forming cutter units 42. In this state, the upper and lower transmission rollers 31 and 32 assume a separated state.

In the mechanism of the present invention, the metal wire 5 can be localized using a special cutter installed at the front end of the molding cutter unit 42 after the metal wire 5 is appropriately protruded from the head 411. Further, the metal wire 5 is continuously sent out from the head 411 using the transmission 3. In this way, it is possible to set so that the metal wire 5 is wound around the metal wire 5 to form a spring or to be formed into another part as required by the designer. In addition, by utilizing the design of the present invention, the metal wire 5 can rotate at various angles and can change directions, so that the same set of molding cutter units 42 can be used for press molding or localization. It can be carried out. In addition, changing the angle only requires modifying the computer program. Therefore, the number of the molding cutter units 42 to be installed is much smaller than that of the conventional product, and it is not necessary to adjust the position of the molding cutter unit 42 every time when switching to manufacturing of a different product.

[0010]

[Effect of the invention]

 According to the present invention, the metal wire to be formed can be rolled at a predetermined angle. As a result, it is possible to perform press molding at various angles and directions with a very small number of molding cutter units compared to conventional products. Furthermore, since it is only necessary to change the computer program according to the angle at which the metal wire is to be rolled, there is no need to adjust the position of the molding cutter unit one by one. In this way, a large amount of material cost, manpower and time can be saved, and the invention is practical and step-by-step.

[Brief description of the drawings]

FIG. 1 is a plan view of the overall mechanism of the present invention.

FIG. 2 is a plan view of a local upper portion of the wheel guide device and the turning mechanism according to the present invention;

FIG. 3 is an end plane operation instruction diagram of the clamping head structure of the turning mechanism of the present invention;

FIG. 4 is a plan view of the transmission of the present invention;

FIG. 5 is a plan view showing the overall configuration of the molding mechanism of the present invention.

FIG. 6 is a three-dimensional view of a head structure used for penetrating a metal wire in the molding mechanism of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wheel guide device 11 Base 111 Central axis 12 Conductor wheel 13 Fixing table 2 Wire turning mechanism 21 Holding head 210 Holding fixed block 211 Air supply pipe 22 Driven belt roller 23 Belt 24 Servo motor 3 Transmission device 31 Upper transmission roller 32 Lower transmission roller 33 Cylinder 34 Guide rail 4 Molding mechanism 41 Base 411 Head 42 Molding cutter unit 421 Slide table 422 Slide block 423 Cam 424 Spring 425 Molding cutter 5 Metal wire

Claims (3)

[Utility model registration claims] In a metal wire feeding step in which a wheel guide, a transmission, and a forming mechanism are installed, the wheel guide is provided with a plurality of conductive wires installed on a base in a movable state. The apparatus holds a metal wire by a plurality of upper transmission rollers and lower transmission rollers whose roller surfaces correspond to each other, and sends out the metal wire in the direction of the molding mechanism, the molding mechanism including a head installed on a base, A central hole installed in the head allows the metal wire to be sent out, and a plurality of molding cutter units are installed on the base, and a molding cutter installed in the molding cutter unit is directed toward the head. Presenting a radial arrangement, a turning mechanism is installed between the transmission and the molding mechanism, the turning mechanism includes a clamping head and a driving device, and the operation of controlling whether or not the clamping head is clamped is controlled; The metal wire is clamped by the clamping head, and the driving is performed. Drive the rotation of the holding head and the wheel guide device to roll the metal wire, and when the wire turning mechanism rotates, the upper and lower transmission rollers of the transmission device stop operating, A wire rod forming mechanism characterized by separation. 2. The driving device of the turning mechanism includes a driven belt roller that connects the holding head and a base of the wheel guide device, and a driven belt roller is installed on a main shaft of a separately installed thermomotor. The belt according to claim 1, wherein a belt is connected between the driven belt roller and the driven belt roller, and the thermomotor drives the gripping head and the rolling device through the belt. Wire rod forming mechanism. 3. The transmission device comprises a plurality of cylinders, the cylinders being coupled to the upper transmission roller, and the operation of the cylinder to control the movement of the upper transmission roller, thereby approaching the lower transmission roller, or The wire rod forming mechanism according to claim 1, wherein the wire rod forming mechanism is separated.