JPS59212197A - Powder molding press - Google Patents

Abstract

PURPOSE:To permit easy exchanging of a die set without being obstructed by a driving device of a feeder in the stage of exchanging the die set by attaching the driving device to a block separate from the die set, transferring the driving device at a specified space from the die set in the stage of exchanging the die set and using the electrical or fluid-cylinder-operated driving device. CONSTITUTION:A feeder F which feeds powder into the dies of a die set 6 of a powder molding press 1 and a driving device D for the feeder F which moves a knocked-out molding are separated from the die set 6 and since there is no need for attaching and detaching the piping, etc. of a fluid cylinder, the exchange of the die set 6 is easy. The device D of the feeder F does not unbalance the surface of the die holder 10 of the die set 6 and the accelerated wear thereof by the feeder F and the deterioration in the accuracy of feeding the power are consequently obviated. The control of the device D by a computer and sequencer is made possible and a product having an intricate shape is easily moldable.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a powder molding press in which it is extremely easy to attach and detach a die set and to easily perform complex control of a feeder for supplying powder.

An outline of a conventional powder molding press will be explained based on FIGS. 1 and 2. In general, a powder molding press includes a powder molding press main body 1, a die set 6 removably installed in the powder molding press main body, and a die 14 of the die set 6 containing powder K.
Feeder F that supplies and knockout (extrusion)
The feeder driving device is provided to move the molded product G from the knockout position in cooperation with the feeder F.

To explain in more detail, the powder molding press main body 1 includes:
a frame 3 having a bottom pedestal 2; a table holder 5 which is mounted on the bottom pedestal 2 so as to be movable up and down and moved up and down by a cylinder 4, and on which the die set 6 is removably installed; and the die set. 6, the molded product extrusion cam M rod 7 on the base 2 is mounted so as to be movable up and down. and a drive device 9 attached to the rod 7.

Further, the die set 6 is fixed to a base-like holder 10 fixed at a constant height within the powder molding press body 1, and a lower end portion of a guide rod 11 that vertically passes through the base-like holder 10. A die holder 13 fixed to the upper end of the guide rod 11, a die 14 mounted inside the die holder 13, and a bottom mounted on the base 10 so as to be inserted into the die 14. Punch P and the die holder 1
The upper punch 16 is attached to an upper punch holder H which is attached to be slidable up and down with respect to a guide rod 15 installed on the upper ram 8 and which is moved up and down by the upper ram 8.

In this die set 6, the table 12 includes an upward bolt 17, a bolt 18 that also serves as a nut and is screwed from below the bolt 17, and a height adjustment ring 19 that is threaded around the pole that also serves as a nut 818. It is placed and fixed on the table holder 5 via. In addition, bolt 1
A locking plate E is fixed to the upper end of the table 7, and the table 12 is attached to the locking plate E so that it can be attached to and removed from the table by sliding in the horizontal direction.

Further, the drive device of the feeder F has conventionally generally been constructed from a cam groove as shown in FIG. 2 (see, for example, Japanese Utility Model Publication No. 15333/1983).

In the conventional powder molding press configured as described above, when replacing the die set 6, the table 12 is moved to slide horizontally, and the locking plate E fixed to the upper end of the bolt 17 is moved. removed from At this time, the upper punch holder H for the upper punch 16 is also moved in the horizontal direction and removed from the upper ram 8. Therefore, everything from the table 12 to the upper punch 16, the feeder F on the die holder 13, and the feeder drive device are replaced at the same time.

In addition, at the time of such replacement, the die set 6 is transported by a trolley (not shown) running on rails, and an electric cylinder, a fluid cylinder, or manually is used to move the die set 6 between the trolley and the powder molding press main body 1. The receiver is delivered by means of an operating rod (not shown) which is operated.

However, in the conventional powder forming press described above, when replacing the die set 6, the drive device i!
Since even the fiD follows along as one, it becomes an obstacle and the replacement work is extremely difficult. In particular, if the drive device is composed of a cam mechanism, the angle of the cam etc. must be adjusted to obtain a predetermined phase relationship between each part after replacing the die set 6. It's inconvenient. Moreover, the cam mechanism has the disadvantage that it is difficult to quantitatively adjust the advance/retreat, charge IR range, etc. to optimal values in accordance with the various die sets 6 that are being replaced, and the cam mechanism must rely on human spacing. be.

Based on the use of such a cam mechanism (in order to eliminate the drawback, recently, the operation of the feeder F has been changed to a fluid cylinder or an electric cylinder (pulse motor, 1 AC servo motor, DC servo motor) that can easily quantitatively adjust the operation of the feeder F. etc.) to perform operations related to the die set 6.

As a result of providing a fluid cylinder or an electric cylinder in the drive device of the feeder F, it becomes possible to operate it by a computer or sequencer, etc., and the angle and stroke of the fluid or electric cylinder can be changed freely. It is also highly reproducible, allows complex operations to be performed extremely easily, and is extremely convenient.

However, even when fluid or electric cylinders are used as the drive device ff1D of the feeder F, conventionally these cylinders are connected to the extension part 13a integrated with the die holder 13.
(FIG. 2) Since it is installed above, it becomes an obstacle when replacing the die set 6, making the replacement work difficult.

In particular, when using a fluid cylinder, the die set 6
There is the inconvenience of having to attach and detach the piping etc. when replacing the pipe.

Furthermore, if the drive device HD for the feeder F is on the same plane as the surface of the die holder 13 as described above, the weight distribution becomes uneven, and the die holder 13 and the die 14
If the surface of the die set is unbalanced, the die set metal will wear out quickly and the accuracy of filling the powder will decrease.

The present invention has been made in order to eliminate such conventional inconveniences, and its purpose is to provide a powder feeder drive device that can be accurately and easily controlled by a computer, sequencer, etc. It is an object of the present invention to provide a powder molding press in which the feeder drive device does not become an obstacle when exchanging the die set, and the exchanging of the die set is extremely easy.

The gist of the present invention is that the feeder drive device is mounted on a block separate from the die set, and the block is moved while maintaining a constant distance from the die set when replacing the die set, and the feeder drive device The main reason for this is that it is equipped with an electric cylinder or a fluid cylinder that can be controlled in a complicated manner by a computer or sequencer. Since the block is separated from the die set, even if the feeder drive installed on it is configured with a sophisticated cylinder, it will not interfere with the die set replacement operation, and the feeder can be connected to the computer or A sequencer facilitates complex control.

The present invention will be described below based on an embodiment shown in FIGS. 3 to 10. Note that the same reference numerals will be used to describe the same parts as in the prior art.

The powder molding press according to the present invention includes a powder molding press body 1, a die set 6 removably installed in the powder molding press body 1, and a die 1 of the die set 6, as in the conventional powder molding press body 1.
4, and a device for driving the feeder F to move the knocked-out molded product G from the knock-out position in cooperation with the feeder F. In addition, as mentioned above, the powder molding press main body 1 and Daicera T-6 have the same structure as the conventional one, so
Detailed explanation will be omitted.

According to the present invention, the drive device of the feeder F- is installed on a block B separate from the die set 6, and the block B is kept at a constant distance from the die set 6 when the die set 6 is replaced. Transferred and powder molding press body 1
It is configured to be directly attached to and detached from the side bolster 20. Note that the block B is a die set 6 as shown in the figure.
The structure may be such that it is removably attached to.

As shown in FIG. 3, when replacing the die set 6,
Normally, the carriage set 6 and the block B are placed on the conveyor cart 22 and the platform 23, which run on the rails 21, at the same time. However, since the drive device on block B is versatile,
This exchange is not performed, and only the die set 6 is exchanged with another die set 6 on the carriage 22. Therefore, the stand 23
When the die set 6 is transferred between the fixed carriage 22 and the powder molding press main body 1, an electric cylinder, a fluid cylinder, or a manually operated operating rod 24 is used. The operating rod 24 has the role of pulling out the die set 6 and block B from the powder molding press body 1 as shown in FIG. 4, and pushing it into the powder molding press body 1 as shown in FIG. do.

13. When separating block B and die set 6, as shown in FIG.
The structure is such that the drive unit and the drive unit are separated.

When replacing the die set, the die set 6 is returned to the cart 22 as shown in FIG. 4, the feeder F and the drive device are separated as shown in FIG. and insert another die set.

Further, in the present invention, since the drive device for the feeder F is provided on the block B separate from the die set 6, there is no problem in exchanging the die set 6. The structure is equipped with an electric cylinder (pulse motor, 1 AC servo motor, DC servo motor, etc.) or a fluid cylinder that can be easily controlled by a motor, etc. As a result, it is extremely easy to achieve complex movements of the feeder F.

7 to 10 show the molding process of the powder molding press according to the present invention. The molding process is the same as before, so
To explain briefly, FIGS. 7(A) and 7(B) show that the molded product G obtained in the previous molding cycle is placed in the die holder 13.
Shown fully exposed at the top.

Next, in Fig. 8 (A>, (B)), the feeder F is connected to the molded product G.
At the same time, the powder is knocked out (extruded) and at the same time the powder is supplied into the die 14, indicating the IC state. Figure 9 (A
) and (B) show the feeder F feeding powder K into the die 14. FIGS. 10(A) and 10(B) show a state in which the feeder F has retreated and compression of the powder I has been completed. After this, the state shown in FIG. 7 is reached again, and the same operation is repeated.

Since J5 and the drive device are controlled by a computer or sequencer as described above, the molded product G has a complicated shape and is completely exposed outside the die 14 as shown in FIG. Feeder F
It becomes extremely easy to use an auxiliary device other than the feeder F (even if one is required, the auxiliary device and the feeder F are the same).

As explained above, according to the present invention, the feeder drive device is separated from the die set, and there is no need to attach or detach the piping of the fluid cylinder each time, making it extremely easy to replace the die set. Furthermore, the feeder drive device does not cause the die holder surface of the die set to become unbalanced, thereby causing premature wear by the feeder or deteriorating the powder feeding accuracy of the feeder. Furthermore, since the feeder drive device can be controlled by a computer or sequencer, there is no need to adjust the angle of cams or the like as in the past, making it easier to mold products with complex shapes.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of a conventional powder molding press, FIG. 2 is an explanatory diagram of the main parts of FIG. 1, and FIG. 3 is a perspective view of the main parts of a powder molding press according to an embodiment of the present invention. 4 and 5 are schematic vertical cross-sectional views of the powder forming press shown in FIG. 3 when replacing the die set, respectively. FIG. 6 is an explanatory view of the main parts of FIG. 4, and FIGS. 7 to 10 are FIG. 3 is an explanatory view of the molding process of the powder molding press in FIG. 3, where each figure (A> is a plan view and each figure (B) is a front view thereof. [Explanation of symbols] 1... Powder molding press body 6... Tie set 10... Base-like holder 1
1... Guide rod 12... Table 13...
K holder 14...Die 15...Guide rod
16...Top punch 20...Bolster-21...
Rail 22... Cart 23... Platform 24...
- Operating rod B...Block D...Feeder drive device F...Feeder G...Molded product K...Powder patent applicant Yoshitsuka MIa Co., Ltd. Figure 9 (A) υ Figure 9 ( B) Procedural amendment dated July 6, 1980 Kazuo Wakasugi, Commissioner of the Patent Office 1. Indication of the case: Japanese Patent Application No. 85949/1982 2. Title of the invention: Powder molding press 3. Relationship with the famous case to be amended. Special applicant: Kanagawa Rui, 28 Miyauchi, Nakahara-ku, Yosaki-shi Yoshitsuka Seiki Co., Ltd. President Yoshitsuka Yoshitsuka - 4, Agent 6, Subject of amendment 1. Phase 2 of the "Detailed Description of the Invention" in the specification, Part 7 of the "Brief Description of the Drawings" in the specification, Contents of Amendment 1, "Angle" on page 6, line 5 of the specification has been changed to "Crank". Correct the angle with respect to the axis. 2. "Advanced cylinder" on page 7, lines 19-20
First, correct it as a "precision cylinder". 3. On page 9, line 12 of the same page, ``22λ 2'' is corrected to ``It is a truck.'' 4. In the 2nd and 3rd lines of page 10, "It is configured to separate" was replaced with "It is composed of a separating device. As shown in Figure 6, the cylinder is always facing downward except when it is being separated. to prevent powder from leaking between the feeder surface and table surface 6.'' 5. On the right side of page 13, line 14, there is a message that says "L...feeder separation device J must be added first.) Correct the figures 4 to 10 of Drawing 69 with the attached J3). 8. List of attached documents 1, amended drawings (Figures 4 to 10) At least one copy each Figure 10 (A) Figure 10 (''B) Figure 9 (A) Figure 9 (B)

Claims (1)

[Claims] A powder molding press body, a die set removably installed in the powder molding press body, a feeder that supplies powder into the die of the die set, and knocks out the knocked-out molded product in cooperation with the feeder. A powder molding press equipped with a feeder drive device for moving the feeder from a position, the feeder drive device being a separate body from the die set, the feeder drive device being moved while maintaining a constant distance from the die set when the die set is attached or detached. mounted on the block,
A powder molding press characterized in that the feeder drive device includes an electric cylinder or a fluid cylinder that can be automatically controlled by a computer, a sequencer, or the like.