JPS583678Y2 - Ring punching device with molding material adhesion device - Google Patents

Description

[Detailed description of the invention] This invention is a small ring made of synthetic rubber or synthetic resin with a large number of matrix-like numbers, and in particular, an O-ring primary molded product, that is, a 01J ring made from a molding material, by pressing and receiving molds. The present invention relates to a ring punching device having a device that brings the molded material into close contact with the receiving die of the molded material during the secondary punching process.

The molded materials are molded into outer rings, rings, and molds using well-researched molds.
A ring is formed concentrically on the inside of the outer ring, and a middle boss is formed concentrically on the inside of the ring. -b If it is a S5 millimeter, it is a flat part with a thickness of about 2/100 millimeters and the peripheral edge is continuous with a small width.

Only the ring is actually used, and the outer ring and inner boss are auxiliary parts that prevent the ring from deforming or forming pinholes during molding.

Therefore, the inner boss must be removed from the molded material and the ring must be separated from the outer ring, ie, secondary processing is required.

Conventionally, a large number of rings were placed in a matrix in a molded material and removed one by one by hand, which was time consuming and resulted in a low yield of good products.

The purpose of this invention is to perform secondary processing using mechanical force, and when punching out a large number of rings arranged in a matrix on a molded material at once using a press die and a receiving die, the molded material may elongate a lot depending on the material of the material. To provide a ring punching device having an adhesion device for ensuring that each part of the ring comes into close contact with a receiving mold and stably.

Next, an embodiment of the present invention will be explained based on the drawings. The drawings show a ring a for one of the molded material
1. The device of the embodiment, in which the flat section d is shown and enlarged, is formed from the following six parts:

A, ring receiving part B, molding material receiving part C1 molding material adhesion device D, molding material holding part E, ring holding part F, middle boss punching part A, IJ song part, B1 molding material receiving part, C1 molding material adhesion device , D1 molding material presser, E, IJ ring presser, F,
Middle boss punching part.

A1 The base 1 to which the ring receiver is fixed has an upright side wall 2, and the inside of the side wall 2 forms a guide surface 3, which is concentric with the through hole 4 provided in the base 1 and has a diameter slightly larger than the middle boss C. A ring receiving mold 6 having a hollow portion 5 is provided protruding from the upper surface of the base 1. A box-shaped intermediate wall 7 extending from four sides and enclosing the ring receiving mold 6 is provided inside the side wall 2. The inner side of the intermediate wall 7 forms a guide surface 8, and the upper end of the ring receiving mold 6 has a predetermined ring a.
A ring groove 9 is provided with which the lower half of the substrate 1 can be contacted, and at the bottom of the ring groove 9 there is an annular suction path 9a that communicates with a suction hole 9b drilled in the vertical direction. There are suction holes 1a on both sides of the through hole 4, which is open to the outside.A suction disk 10 that includes the suction holes 9b, 1a and the opening of the through hole 4 and is attached to the bottom of the base 1 is connected to the conduit 11. ．． It communicates with a vacuum pump 14 via a switching valve 12 and a conduit 13 to form a low pressure generator P.

5. A guide hole 15 passing through the base 1 inside the intermediate wall 7.
15 is the provision.

B. Pin 16.1 that slides airtightly inside the guide holes 15, 15 of the molded material receiving part.
6 has an upper end integrated with a molded material receiving plate 17, and a center hole 18 in the receiving plate 17 is slidably fitted to the outer periphery of the ring receiving mold 5. An outer ring groove 19 is bored for contacting the lower half of the outer ring of the
There is an annular suction path 19a at the bottom of the outer ring groove 19.
7 is in communication with a suction hole 19b that vertically passes through the suction hole 19b.
In addition, a suction hole 17a passes through the lower portion of the remaining flat portion d formed by the outer ring holder being circumscribed with a plurality of other outer ring holders.
The position of the outer ring groove 19 is adjusted in advance to the same level as the ring groove 9 by a spring 20°20.

The four end faces of the support 17 are hermetically fitted to the guide surface 8 and are slidable.

The airtight chamber S formed by the upper surface of the C1 molding material adhering device base 1 and the intermediate wall T1 receiving plate 17 forms a molding material adhering device with the low pressure generator P.

D1 Molding material holding part A molding material holding board 21 located above the support 17 is slidable on the guide surface 3 of the side wall 2 on both end surfaces.The holding board 21 has a center hole 22 having the same diameter as the center hole 18. Through holes 24, 24 are provided near both end faces of the presser mold 21, which has an outer ring groove 23, which corresponds to the outer ring groove 19, and which the upper half of the outer ring can contact, on the periphery of the dovetail.

A spring 24a is provided between the presser plate 21 and the base 1.

24a is stretched.

El Ring Holder The ring presser 25 located above the presser plate 21 is capable of sliding on the guide surface 3 on both end surfaces. A ring groove 27 whose lower end is in contact with the upper half of ring a
The through hole 24 has a center hole 29 concentric with the hollow part 28 of the ring presser mold 26, which is bored in the presser plate 25,
The pin 30.30, which can slide inside 24, is attached to the presser plate 25 at the upper end.
Through holes 31 and 31 pass through both sides of the central hole 29, which is integral with the base plate 1 and whose lower end can contact the upper surface of the base plate 1.

F. Middle boss punching part The middle boss punching machine 32 located above the presser plate 25 can slide on the guide surface 3 at both end surfaces, the hollow part 28;
The middle boss punching die 33 fitted in the center hole 29 has a socket 34 having the same shape as the cone of the predetermined middle boss C at the lower end thereof, and the upper end thereof is integrated with the punching board 32.
．． The upper end of the push rods 35, 35 sliding on the punching plate 31
A spring 36, 36 is adjustable and tensioned between the ring presser plate 25 and the middle boss punching plate 32, which is integral with the ring presser plate 25 and whose lower end can come into contact with the upper surface of the molded material presser plate 21.

A downward external force is applied to the middle boss punching board 32 by a suppressor (not shown).

This device performs the following three operations: -order operation, secondary operation, and tertiary operation.

First, a predetermined molding material The outer ring is in close contact with the lower half of the outer ring groove 19, the lower cone of the middle boss C is loosely fitted into the hollow part 5, and the remaining flat part d is in close contact with the upper surface of the support 17.

A.-When a downward external force is applied to the boss punching machine 32 during the next operation, the spring 36. The ring presser plate 25 descends through the stopper 30.36 and the lower end of the stopper 30.30 contacts the upper surface of the base plate 1. When the external force further increases, the lower end of the push rod 35.35 contacts the molding material presser plate 21 and the ring presser mold 26 ring groove 27 contacts the upper half of ring a.

B. Secondary operation When the external force further increases, the middle boss punching die 33 descends, the socket 34 fits into the upper cone, and the middle boss punching die 33
Cut the flat part d of the inner peripheral edge of the ring a and punch out the middle boss C.

C1 tertiary operation When the external force further increases, the molding material holding plate 21 and the molding material receiving plate 17 come into contact, the outer ring groove 23 contacts the upper half of the outer ring, and the remaining flat part d is in close contact between the support plate 17 and the holding plate 21. However, when the external force further increases, the holding plate 21 and the support plate 17 move down as one unit, cutting the flat part d of the outer peripheral edge of the ring a, and the outer ring is separated from the ring a together with the rest of the flat part d.

By these three actions, the middle boss C falls inside the hollow part 5 and is discharged from the through hole 4 to the bottom of the suction plate 10. Next, the external force is reduced to zero and the switching valve 12 on the low pressure generator is communicated with the atmosphere. Then, the device returns to its original position and can take out the ring 1 remaining in the ring groove 9, the outer ring remaining in the outer ring groove 19, and the remainder of the flat portion d continuous therewith.

Since the present invention has the above-mentioned structure, each part of the molded material, which has a high elongation due to its material properties, can be brought into close contact with the receiving mold by the adhesion device and stabilized. The product is extremely high quality because the force is applied evenly to the inner and outer edges of the ring.

[Brief explanation of the drawing]

Figure 1 is a normal state diagram of the present invention, Figure 2 is a primary operation diagram,
FIG. 3 is a secondary operation diagram, and FIG. 4 is a tertiary operation diagram. 1... Base, 3, 8... Guide surface, 4... Homogeneous through hole, 5... Hollow part, 6... Publishing mold, 9, 19... - Inter-ring groove, 9a, 19a = suction path, la, 9b. 17 a t 19 b...Curved suction hole, 1o...
・Suction board, 11. 13... Conduit, 12... Curved switching valve, 14... Curved vacuum pump, 17... Molded material receiver, 21... Curved molded material presser board, 19, 23...
... Outer ring groove, 20, 24a. 36... Spring, 25... Publishing presser, 26... Link presser die, 30... Curved stopper, 32... Middle boss punching machine, 33・Curved/middle boss punching die, 34...Socket, 35...Curved push rod.

Claims (1)

[Scope of utility model registration request] A side wall 2 having a ring groove 9 on the top, a suction hole 9b that communicates with the ring groove, penetrates downward to the top, and opens to the outside, and a ring receiving mold 6 that opens to the outside through a hollow part 5 and has a guide surface 3. a base 1 having a second suction hole 1a that stands upright from an intermediate wall 7 that is located inside the intermediate wall 2, is surrounded on all sides, and has a second guide surface 8 inside the intermediate wall 7; It has a center hole 18 that fits into the outer periphery of the receiving mold 6, and an outer ring groove 19 on the upper surface of the outer periphery thereof, and a third suction hole 19b communicating with the outer ring groove 19.
A molded material receiving plate 17 is formed, which is capable of being moved up and down in an airtight manner by means of a second guide surface 8, with an elastic member 16 stretched between it and the base 1; A suction disk 10 containing the opening of the suction hole 1a has a low pressure generator P in communication with the upper surface of the base 1, the second guide surface 8, and the molded material receiving disk 1.
7, a molding material presser plate 21 having an outer ring groove 23 on the lower surface of the periphery of the center hole 22 and movable up and down along the guide surface 3; A ring holding plate 26 having a ring groove 27 and a hollow portion 28 is provided protrudingly at a position corresponding to the ring receiving plate 6, and penetrates through the molding material holding plate 21 so that its tip can come into contact with the upper surface of the base 1. a ring presser plate 25 with a stopper 30, 30 protruding thereon and movable up and down along the guide surface 3; a socket 3 which fits into the hollow part 28 and which can fit into the cone of the middle boss at the tip end;
4, and has push rods 28 and 28 that penetrate the ring presser 25 on both sides and whose tips can come into contact with the upper surface of the molded material presser 21, and between the ring presser and the ring presser 25. A ring punching device having a molded material close contact device consisting of a middle boss punching board 32 which is movable up and down along the guide surface 3 and has an elastic member 36 stretched thereon.