JPH0235437Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an improvement of a briquetting machine that produces briquettes of a fixed shape by press-forming wet powder, metal powder, etc. using two rolls.

(Prior Art) Generally, the rolls of a briquetting machine wear out during use and must be replaced periodically, but in order to replace the rolls, the rolls must be taken out from the base. To that end, Tokuko Akira
A briquetting machine as disclosed in Japanese Patent No. 57-49320 has been proposed. This briquetting machine consists of a press frame that holds a bearing unit for roll support, and is composed of upper and lower frames and a connecting member that connects the upper and lower frames. When replacing the roll, the horizontal pin is pulled out and the connecting member is pushed outward.
However, in this structure, it is necessary to tightly fit the horizontal pins into the frame and the coupling member, which causes new problems such as making it extremely difficult to attach and remove the horizontal pins.

(Purpose of the invention) The present invention was made in order to solve the above-mentioned problems, and an object thereof is to provide a briquetting machine equipped with a press frame in which horizontal pins can be easily attached and detached.

(Structure of the invention) Hereinafter, the structure of the invention will be described in detail with reference to the drawings with reference to the embodiments. Reference numeral 1 denotes a lower frame, and coupling members 2, 2 are erected at both left and right ends of the lower frame 1, and the An upper frame 3 is installed between the upper ends of the members 2, 2. As shown in FIG. They are connected by a pin mechanism 6 inserted through the two pin holes 5, 5. Further, the pin mechanism 6 includes a cylindrical bush 8 having a tapered hole 7 and a taper pin 9 that can be fitted into the tapered hole 7 and is slightly shorter in length than the bush 8. As shown in FIGS. 4 and 5, the thick side of the bushing 8 has three
The slits 10, 10 are provided at equal intervals. Further, as shown in FIG. 6, female threads 11a and 11b are formed on both end surfaces of the taper pin 9.

Further, between the lower frame 1 and the upper frame 3, two pairs of bearing units 12 and 13 are mounted side by side, which are arranged facing each other at a required interval in the front and back to form a pair. And 1 placed on the left side
The pair of bearing units 12 are fixedly attached, and the pair of bearing units 13 placed on the right side can reciprocate left and right with two horizontal cylinders 14, 14 attached to the right side coupling member 2. It is installed as such. Further, rolls 15 and 16 are mounted on the bearing units 12 and 13, respectively. 1
7 is a chute located directly above the rolls 15 and 16 and installed on the upper frame 3; 18 is the roll 1;
5 and the output shaft of a motorized speed reducer (not shown), and 19 is a column erected on the lower frame 1.

(Operation of the device) Next, the operation of the device configured as described above will be explained. The powder is produced into briquettes as usual by rotating the roll 15 clockwise through the coupling 18 by driving a motor (not shown) and supplying the powder between the rolls 15 and 16 through the chute 17. However, in order to fold the coupling members 2, 2 outward in order to replace the rolls 15, 16, first the coupling 18 is removed from the rolls 15, and then the piston rods of the cylinders 14, 14 are separated from the bearing unit 13. Next, pin holes 4, 4 on the back side of the upper frame 3
After abutting a nut with a flat surface wider than the pin holes 4, 4 and a female thread of the same size as the female threads 11a, 11a at the position, a bolt ( (not shown), then rotate a nut (not shown) in a predetermined direction, thereby screwing the taper pins 9, 9 through the bolts into the bushes 8, 8.
(See the two-dot chain line in Fig. 3). Next, pin hole 4 of upper frame 3,
4 and the bushings 8, 8 from the pin holes 5, 5 of the coupling members 2, 2 to release the connection between the upper frame 3 and the coupling members 2, 2, and then similarly remove the bushings 8, 8 on the lower frame 1 side. Taper pins 9, 9 are pulled out from 8 to release the state in which the bushes 8, 8 are fixed to the lower frame 1 and the connecting members 2, 2. Next, the bush 8 fitted into the lower frame 1,
The coupling members 2, 2 are rotated outward about 8, thereby allowing the coupling members 2, 2 to be tilted outward.

In addition, the upper and lower frames 3, 1 and the connecting members 2, 2
In order to firmly connect the two through the pin mechanisms 6, 6, first, attach the fitting bushes 8, 8 to the lower frame 1.
The coupling members 2, 2 are rotated around the axis to make the coupling members 2, 2 stand up, and then the bushes 8, 2 are inserted into the pin holes 4, 4 of the upper frame 3 and the pin holes 5, 5 of the coupling members 2, 2 Insert 8. Next, after inserting the taper pins 9, 9 into the taper holes 7, 7 of the bushes 8, 8, the female threads 11b, 11b of the taper pins 9, 9 in the pin holes 4, 4 of the upper frame 3 are inserted.
A nut (not shown) is abutted on the side as described above, and a bolt (not shown) is screwed into the female threads 11b, 11b, etc. Next, the nut is rotated in a predetermined direction to draw the taper pins 9, 9 into the taper holes 7, 7 via the bolts. Then, the bushes 8, 8 are slightly expanded due to the presence of the slits 10, 10, and are brought into strong contact with the inner surfaces of the pin holes 4, 4, 5, 5, so that the upper frame 3 is pushed through the bushes 8, 8. It is firmly connected to the connecting members 2, 2. Similarly, taper pins 9, 9 are strongly pulled into the bushes 8, 8 that fit into the pin holes 4, 4 of the lower frame 1, and the lower frame 1 is firmly connected to the coupling members 2, 2 via the bushes 8, 8. urge

Note that the slit 10 may be provided on the thinner side of the bush 8.

(Effects of the invention) As is clear from the above explanation, the invention has the following effects:
The pin mechanism that connects the upper and lower frames and the connecting member is composed of a bush with a tapered hole and a slit, and a taper pin with internal threads on both ends, making it extremely easy to attach and detach the pin mechanism. This provides excellent effects such as being able to reliably connect the upper and lower frames and the coupling member via the pin mechanism.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and Fig. 1 is a front view, Fig. 2 is a left side view of Fig. 1, Fig. 3 is a sectional view taken from A to A in Fig. 1, and Fig. 4 is a main view. cross-sectional view of the section,
FIG. 5 is a front view of FIG. 4, and FIG. 6 is a cross-sectional view of other main parts. 1: Lower frame, 2: Connecting member, 3: Upper frame, 6: Pin mechanism, 7: Taper hole, 8: Bush, 9: Taper pin, 10: Slit, 11
a, 11b: Female thread, 12, 13: Bearing unit, 15, 16: Roll.

Claims (1)

[Scope of utility model registration request] Connecting members 2, 2 are erected at both ends of the lower frame 1, an upper frame 3 is installed between the upper ends of the connecting members 2, 2, and a roll 1 is installed between the upper and lower frames 3, 1.
In a briquetting machine in which two pairs of bearing units 12 and 13 attached to 5 and 16 are mounted side by side, a tapered hole 7 is provided between the upper and lower frames 3 and 1 and the coupling members 2 and 2. A bush 8 has a cylindrical shape and is provided with a slit 10 extending along its longitudinal direction to one end surface thereof, and the bush 8 is fitable into the tapered hole 7 and has a cylindrical shape.
It is slightly shorter in length and has 1 female thread on both ends.
A briquetting machine characterized in that 1a and 11b are removably connected by a pin mechanism 6 comprising a taper pin 9 with threaded holes.