JPH0680501U - Deburring device for molded products - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a deburring device for cutting and removing burrs generated during the molding of cone-shaped molded products with stable and high accuracy and obtaining good quality products with good yield. To do. According to the deburring apparatus of the present invention, a support frame body 18 is rotatably attached around a supported and fixed cone-shaped molded body 12 via bearings 17. A cutting mechanism 18 is vertically provided so as to follow the operation of the roller 21 and move up and down. Further, in the cutting mechanism, the cutter blade 25 is screwed so that the cutting angle of the cutting edge with respect to the molded body 12 can be adjusted, and further, the magnetic catch 27 prevents the blade from coming back and the cutting depth of the cutting edge is properly adjusted. Has been done.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a deburring device for a molded body, and more particularly to a deburring device for cutting and removing the burr of a cone-shaped molded body formed at the ends of electric wires and cables.

[0002]

[Prior art]

 Conventionally, for example, a cone-shaped rubber mold molded body (mold cone) is formed at the end portion of the lead wire for a vacuum switch by press molding using a mold. Often had burrs at the seams of dies, etc., and there was a problem in terms of appearance and characteristics.

Therefore, the burr of the molded body is cut and removed by using the following apparatus to perform the surface finishing. That is, as shown in FIG. 2, the conventional deburring device has a cylindrical head 3 concentrically attached to a hollow shaft 2 which is rotationally driven by a motor 1, and a cutter blade is attached to the tip surface of the head 3. It has a structure in which 4 is planted vertically. Then, the rubber covered wire 6 on which the molded body 5 is formed is mounted on the slide unit 7, and the slide unit 7 is moved forward in the horizontal direction, whereby the outer peripheral surface of the end of the molded body 5 (the base of the burr 8). ), The tip of the cutter blade 4 is vertically applied, and the motor 1 rotates the cutter blade 4 to cut off the burr 8. In the figure, reference numeral 9 indicates a terminal portion (copper rod) of the rubber covered wire 6, and reference numeral 10 indicates a holding unit for restraining and fixing the movement of the molded body 5 in the radial direction (direction perpendicular to the axis). Show.

[0004]

[Problems to be solved by the device]

 However, in such a conventional deburring apparatus, the blade tip of the cutter blade 4 easily bites into the main body of the molded body 5, and it is very difficult to cut off the burr 8. Further, since the molded body 5 is made of an elastic material such as rubber, when the center axis of the molded body 5 is used as a reference, the blade tip of the cutter blade 4 should be accurately positioned and applied to the base of the burr 8. Was difficult.

The present invention has been made in order to solve these problems, and burrs generated during the molding of a cone-shaped molded body such as a rubber mold cone are removed by cutting with stable and high accuracy, and quality is improved. It is an object of the present invention to provide a deburring device for molded articles, which can obtain good products with good yield.

[0006]

[Means for Solving the Problems]

 A demolding device for a molded body according to the present invention comprises a cone-shaped molded body which is supported and fixed, and a slide body which is arranged so as to slide on the outer peripheral surface of the cone-shaped molded body in the vicinity of a portion to be processed. A cutting blade arranged so that the cutting angle and the cutting depth of the cutting edge can be adjusted with respect to the workpiece to be processed, and the cutting blade moves in a direction perpendicular to the peripheral surface of the sliding body. And a mechanism for orbiting them outside the molded body.

[0007]

[Action]

 In the deburring device of the present invention, the slide body and the cutting blade are configured to orbit the outside of the cone-shaped molded body which is supported and fixed by the orbiting mechanism. The moving body moves in the circumferential direction on the outer peripheral surface in the vicinity of the processed portion of the molded body while always maintaining an appropriate contact state. The cutting blade follows the movement of the sliding body in the vertical direction (perpendicular to the outer peripheral surface) during such an orbit, and vibrates in the vertical direction at the same cycle and amplitude as the sliding body. To do. In addition, this cutting blade is configured so that the cutting angle and cutting depth of the cutting edge can be adjusted, so that the cutting edge does not bite into the molded body and is always adjusted to the proper angle at the base of the burr. Therefore, the cutting edge can be positioned with high accuracy. In this way, only burrs are precisely and stably removed by cutting, and defective products are prevented. Furthermore, deburring work can be performed efficiently, and since a manual mechanism is used as the orbiting mechanism, equipment costs are low and safe.

[0008]

【Example】

 Next, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a partial sectional view schematically showing an embodiment of a deburring device for a molded body of the present invention. In the figure, reference numeral 11 indicates a fixing portion for supporting and fixing a rubber covered wire having a cone-shaped rubber molded body 12 formed at an end thereof, in which the small diameter portion 13 and the terminal portion 14 of the molded body 12 are inserted and fitted. And a tightening bolt 16 for tightening and fixing the terminal portion 14 fitted in the accommodating portion 15 in the radial direction. In addition, a bearing 17 such as a ball bearing is arranged around the tip end portion of the fixed portion 11 into which the compact small diameter portion 13 is inserted. A supporting frame 18 having supporting legs and having a horizontal protruding portion formed on the upper portion is fixed. Further, a roller tracing mechanism shown below is arranged on such a horizontal protruding portion of the support frame 18. That is, a holder 19 having a U-shaped cross section is elastically attached to the horizontal protrusion of the support frame 18 via a spring 20, and the hanging holder on the tip side of the holder 19 has A roller 21 is axially supported so as to slide on the outer peripheral surface near the end of the molded body 12 while rotating. Further, a cutting portion mounting body 23 having a slide table portion 22 formed at the lower end is rotatably mounted on the other hanging holding portion of the holding body by a screw 24, and the two supporting legs of the support frame body 18 are supported. It is located in between. Then, the cutter blade 25 is attached to the lower end of the slide table portion 22, and the screw 24 is loosened and the cutting portion mounting body 23 is rotated together with the slide table portion 22 using this as a fulcrum, whereby the blade tip of the cutter blade 25 is molded. The contact angle with the molded body 12 can be adjusted. Further, a vertical extension portion 26 made of a ferromagnetic material is provided at the rear end portion of the cutter blade 25, and the vertical extension portion 26 is a magnet attached to the rear end portion of the cutting portion attachment body 23. It is strongly attracted to the magnetic catch (magnetically attracting body) 27 as described above and presses the rear end of the cutter blade 25 forward. Further, a handle 28 is welded and fixed to the upper end of the support frame 18 and a position facing the support frame 18 of the outer casing of the bearing 17, and the handle 28 is used to hold the entire deburring device. It is configured so that it can be rotated around the molded body.

In order to cut off the burr 29 formed at the end of the rubber molded body 12 using the apparatus of the embodiment configured as described above, first, the rubber covered wire with the molded body 12 is attached to the shaft. Is fixed to the fixing portion 11 such that the terminal is horizontal, and the terminal portion 14 is pressed and fixed in the radial direction with the tightening bolt 16 to fix the terminal portion 14. Next, the lower surface of the roller 21 is brought into contact with the outer peripheral surface near the end of the molded body 12, and in this state, the cutting portion mounting body 23 is rotated with the screw 24 as a fulcrum, and the cutting edge of the cutter blade 25 is moved. The angle of contact with the base of the burr 29 is adjusted. Further, the magnetic catch 27 magnetically attracts the vertically extending portion 26 and presses and urges the rear end portion of the cutter blade 25 via the magnetic catch 27, thereby preventing the blade tip from returning and cutting the blade edge into the burr 29. Adjust the depth. Then, in this state, the operator grips the handle 28 and turns the support frame 18 and the roller tracing mechanism and the cutting mechanism vertically provided on the support frame 18 around the processed portion of the molded body 12 together. When the roller 21 oscillates in this manner, the roller 21 oscillates up and down according to the shape of the outer peripheral surface of the molded body 12 and the state of irregularities, and the cutting portion attachment body 23 also oscillates up and down. As a result, cutting is always performed with the cutting edge of the cutter blade 25 being accurately positioned and abutted on the base of the burr 29 to be removed. In this way, the burr 29 formed on the outer peripheral surface of the end of the molded body 12 is cut and removed with a stable and high precision, and a product having a uniform finish is obtained.

[0011]

[Effect of device]

 As is clear from the above description, according to the device of the present invention, burrs generated during the molding of a molded body such as a rubber mold cone do not have the cutting edge bite into the body of the molded body and always have stable and high precision. It can be removed by cutting and a product of good quality can be obtained. In addition, the operation is safe and the equipment is inexpensive.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional view schematically showing an embodiment of a deburring device for a molded body according to the present invention.

FIG. 2 is a sectional view schematically showing an example of a conventional deburring device for a molded body.

[Explanation of reference numerals] 11: Fixed part 13: Small molded part 15: Storage part 16: Tightening bolt 17: Bearing 18: Support frame 19: Holding body 20 … Spring 21 ……… Roller 22 ……… Slide table part 23 ……… Cutting part mounting body 24 ……… Screw 26 ……… Vertical extension part 27 ……… Magnet catch 28 ……… Handle

Claims (1)

[Scope of utility model registration request] 1. A slide body, which is disposed so as to slide on the outer peripheral surface thereof, in the vicinity of a processed portion of a cone-shaped molded body which is supported and fixed, and a processed portion of the molded body. A cutting blade with a cutting angle and a cutting depth of the cutting edge that are adjustable, and the cutting blade is configured to operate following a movement in a direction perpendicular to the peripheral surface of the sliding body. At the same time, a deburring device for a molded body is provided, which is provided with a mechanism for orbiting them outside the molded body.