JPH0399799A - Floating die set for press - Google Patents

Abstract

PURPOSE:To easily integrate the floating die set into an existing press by forming a vibration generating device either a space between a pressing movable platen and an upper die or a space between a die base and a lower die or both. CONSTITUTION:When the vibration generating device 11 on the side of the set base 1 and the vibration generating device 17 on the side of the pressing movable platen 7 are operated simultaneously or in sequence, generally the press is operated mainly by a pressing cylinder 32 on the upper side and, as occasion demands, by a lower operating cylinder 25 as a subsidiary one. In this way, since uneven molded spots are generated by the vibrating force by relative operation of the upper and lower vibration generating devices 11,17 in the floating set F1 and the relative pressing force by the upper and lower pressing cylinders 32,25 in the powder stock X with which the molding mouth 15 is filled, a molded part which is press-molded tightly and uniformly and equal in the degree of compaction is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a floating die set that is incorporated into a press machine for use.

(Prior Art) Conventionally, the present inventor integrally configured a vibrating device on the lower die side and the upper die side of the press machine itself in a vibratory press molding machine disclosed in Japanese Patent Application Laid-Open No. 61-2508, Vibration force and pressing force are applied organically to the inside of the powder raw material filled in the molding frame, and as a result, the pressure distribution inside the powder is tight without causing uneven molding of the molded product. We are dealing with various types of press forming, as well as forming with uniform filling degree and tightness, and improving the quality and yield of molded products.

Furthermore, in the case of the vibrating press molding machine disclosed in JP-A-63-132800 (J), a vibrating device is integrally constructed on either or both of the lower die side and the upper die side of the press machine itself, Furthermore, by covering the entire upper and lower sides of the molding area and suctioning out the internal air during molding, it improves deaeration performance and significantly shortens deaeration time. This dramatically improves the molding density of molded products.

(Problems to be Solved by the Invention) However, in the case of this type of vibrating press molding machine, the whole device such as a vibration generator and an air suction device is integrated into the press machine itself from the beginning. As a result, the equipment cost is high, but the existing press machine cannot be used effectively.

(Means for Solving the Problems) Therefore, the present invention provides a single unit that can be easily incorporated into a press machine, incorporates a vibration generator, and furthermore, incorporates an air suction device. Die set base 1 is used as a floating die set useful as a product.
A guide column 2.2A is vertically supported on both left and right sides of the guide column 2.2A, and a molding movable plate 3 and a pressing movable plate 7 are inserted and supported on the guide column 2.2A so as to be movable up and down. A molding frame 13 is attached, and a lower mold 12 is attached to the die set base 1 side, and an upper mold 15 is attached to the pressing movable platen 7 side.
are arranged to face each other above and below the forming frame 13, and between the movable pressing plate 17 and the upper die 18 or between the Daisen 1 and the base 1.
He invented several types of single-piece devices, including a floating die set for a press machine, which includes a vibration generator 17, 11 installed between the press and the lower mold 12 or both.

DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment and a second embodiment of a floating die set according to the present invention will be described below with reference to the accompanying drawings.

(First Example) First, in FIG. 1 showing the floating die set F1 of the first example, 1 is a die set base, and 2.2A is a guide column vertically supported on both left and right sides of the die set base 1. ,
3 is a molded movable plate stretched between the guide columns 2.2A, 4,
4A is a hydraulically or pneumatically driven operating flick,
The molding movable platen 3 is fitted and fixed to both left and right sides of the molding movable platen 3, and thus the molding movable platen 3 functions to be freely movable up and down within an appropriate height range along the guide column 22A.

5.5A is a piston that is slidably installed inside the operating cylinders 4, 4A, and is either fitted and fixed to the guide column 2.2A or formed integrally with the guide column 2.2A. There is.

Reference numeral 6.6A denotes bows 1- formed on the upper and lower sides of the operation cylinders 4, 4A, and the molding movable platen is formed by the flow of oil or air into and out of the upper boat 6 or the lower boat 6A of the piston 55A. The vertical movement of No. 3 is controlled.

Reference numeral 7 denotes a movable pressure plate that spans a part of the guide column 2.2A, and 8 and 8Δ indicate guide tubes fixed to both left and right sides of the movable pressure plate 7, which allows the guide column 2.2A to be moved along the guide column 2.2A. The pressing movable platen 7 functions to be movable up and down.

Reference numeral 9.9A is a stopper for retaining the drawer J that is fixedly supported on the upper end of the guide column 2.2A.

Reference numeral 10 denotes a hard rubber shock absorber fixedly arranged on two sides of the center of the base 1, and a vibration generator 11, which also serves as a lower mold mounting bed, is fixedly installed on the upper surface of the shock absorber 10.

12 is a lower mold fixed to two sides of the vibration generator 11.

Reference numeral 13 denotes a molding frame that is fitted and fixed from the lower part into the middle-to-center i'' portion 14 of the movable molding platen 3, and a molding opening 15 opened at the center of the molding frame is filled with powder powder IX such as ceramic. .

Reference numeral 16 denotes a hard rubber shock absorber fixed to the center lower surface of the movable press plate 7, and a vibration generator 17, which also serves as an upper mold mounting bed, is installed and fixed on the lower surface.

18 is an upper mold fixed to the lower surface of the vibration generator 17.

Incidentally, reference numeral 19 denotes a mounting hole formed in the center of the movable pressing plate 7, and has a female screw installed therein.

Therefore, the floating die set F configured as described above can be used in a press machine I) as shown in FIG.
and put it into use.

In FIG. 2, reference numeral 20 denotes a press machine stand constituted by a frame, which is installed and fixed on a factory floor or the like.

21.21Δ is a guide column supported vertically on both left and right sides or four corners of the press machine stand 20, 22 is a guide column 21.21
Pressbed across the lower end between A, 23.23A
are guide cylinders fixed to the left and right sides or the four corners of the press bed 22, and the press bed 22 functions to be able to move up and down along the guide columns 2121A.

24 is a mounting bracket fixed to the lower center surface of the press bed 22; 25 is a relatively small capacity operation cylinder driven by pneumatic or hydraulic pressure; The two ends of the rod 26 are pivotally connected to the mounting bracket 24, and are normally driven and controlled during demolding of the molded product.

Reference numeral 27 denotes a movable pressure plate that extends over one side of the guide column 21.21A, and the guide tubes 2B and 28A are fitted and fixed on both left and right sides or four corners of the plate, and thereby the guide column 21.2
The pressing movable platen 27 functions to be freely movable up and down along 1A.

29 is an upper fixed plate fitted and fixed to the upper end of the guide column 21.21Δ, and support tubes 30.30A formed on both left and right sides or four corners of the upper fixed plate are attached to the upper end of the guide column 21.21Δ.
It is inserted and fixed at the end.

Reference numeral 31 denotes a mounting bracket fixed to the center two sides of the movable press plate 27, and 32 denotes a relatively large pressure cylinder driven by pneumatic or hydraulic pressure, which is arranged and fixed downward in the center of the upper fixed plate 29. , the lower end of the piston rod 33 is pivotally mounted on the mounting bracket 31.

34 is a press ram fixed to the lower center of the movable press plate 27, and a screw 35 is provided protruding from the center of the bottom.
It is screwed and supported in the above-mentioned recessed hole 19.

Therefore, the floating die set F1 according to the present invention is set between the press bed 22 and the movable pressing plate 21 in the press P (not shown in FIG. It is subjected to press molding for X.

In addition, 36 is a housing that covers the entire press machine I and insulates it from sound, and a loading port 37 is provided on one side of the housing 3B corresponding to the height of the movable molding platen 3 of the floating Daicera F. In addition, outlet ports 3B are formed in other side portions so as to be openable and closable.

39.39A are height adjustment legs arranged at the four corners of the press machine stand 20.

(Function) As shown in Fig. 2, the floating die set FI is set in the press P, and oil or air is supplied and discharged to the upper boat 6 and lower boat 6A of the cylinder 4.4A. By controlling, the lower end of the molding opening 15 of the molding frame 13 is brought into temporary engagement with the tip of the lower mold 12 .

Then, after the powder raw material X such as ceramic is filled and supplied to the molding port 15, the press cylinder 32 of the press P is driven to move the press movable platen 27 downward.

Then, the movable press plate 7 of the floating die set F moves downward via the press ram 34, and the movable press plate 7
The upper mold 18 attached to the side is inserted into the molding opening 15 of the molding frame 13.
Temporarily engage the upper end of the.

Next, the powder raw material
While applying a vibrating force to the press, the press is operated mainly by using the upper pressure cylinder 32 as the main cylinder and, if necessary, using the lower operation cylinder 25 as a sub.

In this way, the powder raw material Upper and lower pressurized cylinders 32.2
The relative pressing force according to 5);
A molded product with uniform tightness that is tightly and evenly press-molded can be obtained without causing irregularities in molding.

Then, the molding movable platen 3 is moved downward by controlling the supply and discharge of oil or air to the -1 part side boat 6 and the lower side boat 6A of the cylinders 4 and 4A, and the tip of the lower mold 12 is molded. The molded product is taken out by relatively pushing it out from the opening 15.

In the above case, the operation cylinder 25 for pushing and raising the press bed 22 was configured at the lower end of the press P, but in the case of the first embodiment, a floating die press was installed. -F, No. 2 Since the guide column 2.2A includes a cylinder 4.4A and pistons 5, 5A that control the vertical movement of the molding movable platen 3, the presence of the operating cylinder 25 on the press machine P side is optional. It can also be used in combination with a press P having a structure in which a press bed 22 is fixed to the upper end of a press stand 20.

Conversely, a cylinder 4 that controls the vertical movement of the molding movable platen 3;
4A and a floating die set F without a piston 5.5A, it is essential to combine it with a press P having an operating cylinder 25 on the lower side.

(Second Embodiment) Next, in FIGS. 3 to 5 showing a second embodiment of the floating die set F2, 40 is a lower inner cylinder fixed to two sides of the die set base 1. A sealing material 41, such as an O-ring, is fitted onto the outer periphery of the upper end.

Reference numeral 42 denotes a lower outer cylinder fixed to the bottom surface of the movable molding platen 3, which is fitted and supported by the inner cylinder 40 so as to be slidably engaged, and is connected to the lower part of the molding frame 13 on the movable molding platen 7 side and the die. Set base 1
The entire side vibration generator 11 is covered, and the inside thereof is formed into a sealable lower chamber Y as shown in FIG.

Reference numeral 43 denotes an inner cylinder on the negative side fixed to the upper surface of the movable molding platen 3, and a sealing material 44 such as an O-ring on the outer periphery of the two ends thereof is fitted.

Reference numeral 45 denotes an upper outer cylinder fixed to the bottom surface of the movable pressing plate 7, which is fitted and supported in the inner cylinder 43 so as to be slidably engaged;
The upper part of the molding frame 13 on the movable molding platen 7 side and the vibration generator 17 on the movable pressing platen 7 side are entirely covered, and the inside thereof is made into an airtight Celsius upper chamber Z.

46 is an air supply/exhaust boat formed on either the inner cylinder 4G on the lower chamber Y side or the outer cylinder 42, and 47 is the inner cylinder 4 on the upper chamber Z side.
3 or the outer cylinder 45, which is connected to an air suction device (not shown) such as an air supply pump installed outside the machine via an air hose 48, 49. There is.

The rest of the structure is the same as that of the floating die set F of the first embodiment, so the same reference numerals are given and the explanation thereof will be omitted.

(Function) Therefore, after setting the floating die set F of the second embodiment in the press machine P (not shown in FIG. 2) in the same manner as in the first embodiment, first, the upper side of the cylinder 44A is boat 6
When the supply and discharge of oil or air to the lower boat 6A is controlled, the tip of the lower mold 12 comes into temporary engagement with the lower end of the molding opening 15 of the molding frame 13.

Then, when the powder raw material The movable pressing plate 7 moves downward, and the upper mold 18 attached to the movable pressing plate 1 side moves to the fourth position.
As shown in the figure, the upper end of the molding port 15 of the molding frame 13 is temporarily engaged, and the outer cylinder 42 on the lower side is slidably engaged with the inner cylinder 40 on the lower side. The upper outer cylinder 45 is slidably engaged with the inner cylinder 43, thereby forming a lower chamber Y and an upper chamber Z above and below the molding movable platen 3 in a sealed state.

5 Next, the vibration generator 11 on the die set base 1 side and the vibration generator 17 on the press movable platen 7 side are activated simultaneously or one after another, and the air suction device (not shown) is activated. ) to suck air from the sealed lower chamber Y and part of the chamber Z.

Then, the powder raw material The action and the suction action of the air suction device function synergistically, and a minute gap is formed at the temporary engagement part between the lower end of the molding 1'' 15 and the lower mold 12, and the −1 end of the molding opening 1. Air mixed in the powder raw material The air is exhausted to the outside via the air suction hoses 48 and 49, and at the same time, the pressurizing force from the pressurizing cylinder body 32 acts effectively to improve the texture of the powder raw material X without causing uneven molding. It is press-molded into a fine, uniformly thick molded product.

6 Then, by controlling the supply and discharge of oil or air to the upper boat 6 and lower boat 6A of the cylinder 4.4A, the molding movable platen 3 is moved downward as shown in FIG. 12
The molded product X1 is taken out by pushing the tip of the molded product X1 relatively through the molding opening 15.

In the above case, the lower inner cylinder 40 was attached to the upper surface of the die 7/soto base 1, and the lower outer cylinder 42 was attached to the bottom of the molding movable platen 3, but in contrast to that, , molding movable plate 3
It is also possible to attach the inner tube 40 to the bottom surface of the die set base 1 and the outer tube 42 to the upper surface of the die set base 1 so that the two can be slidably engaged.

Similarly, the upper outer cylinder 45 is attached to the upper surface of the molding movable platen 3, and the -1 part inner cylinder 43 is attached to the bottom surface of the pressing movable platen 7, so that the two can be slidably engaged. It can also be configured.

(Effects of the Invention) As described above, the present invention vertically supports the guide columns 2.2A on both left and right sides of the die set base 1.
A molding movable platen 3 and a pressing movable platen 7 are inserted and supported so as to be movable up and down, and a molding frame 13 is attached to the molding movable platen 3. Lower mold 12
The upper die 15 attached to the side of the movable press plate 7 is disposed facing 1-below the molding frame 13, and the movable press plate 1
Several types of floating die sets for press machines include a vibration generator 1711 between the die set base 1 and the upper die 18 or between the die set base 1 and the lower die 12, or both. Since we have provided a stand-alone device, it can be easily incorporated into an existing press machine for use.
Second, since it incorporates a vibration generator and even an air suction device, it offers various effects such as being extremely useful as a stand-alone product.

[Brief explanation of drawings]

FIG. 1 is a front view showing a first embodiment of a floating die set, and FIG. 2 is a front view showing a state in which it is assembled into a press molding machine. Figures 3 to 5 show a second embodiment of the floating die set. Figure 3 shows the state in which the powder raw material is filled into the forming frame, and Figure 4 shows the state in which the molding frame is filled with the powder raw material. The molding state
FIG. 5 is a diagram showing a state in which the molded product is taken out. Code Table F ,,F 2 Floating daise/soto P Press machine X Powder raw material Y Lower chamber
Z Upper chamber
, 8A guide cylinder 9.9A stopper 10.16 Shock absorber 11.17 Vibration generator 12 Lower mold 13 Molding frame 14 Center opening 15 Molding opening
18 Upper mold 19 Mounting hole 20 Brace machine stand 21.21A Guide column 22
Breath Beso +-23, 23 Guide tube 31 Mounting bracket
25 Operation flick 33 Piston rod 27 Pressing movable plate 28A guide cylinder 29 Partially fixed plate 30A
Support cylinder 32 Pressure Norinda press ram 3
5 Nen housing 37 Carrying inlet/outlet 39 Adjustable leg 43 Inner cylinder 41.44 Knoll shrine 45 outside
Tube 4 B, 47 Supply/exhaust boat 49 Air hose

Claims (4)

[Claims] (1) Guide posts 2, 2 on both left and right sides of die set base 1
A is vertically supported, and a molded movable platen 3 is attached to the guide columns 2 and 2A.
A movable pressing plate 7 is inserted and supported so as to be movable up and down, and among them,
A molding frame 13 is attached to the molding movable platen 3, and a lower die 12 attached to the die set base 1 side and an upper die 15 attached to the pressing movable platen 7 side are arranged to face each other above and below the molding frame 13. The present invention is characterized in that vibration generators 17 and 11 are arranged between the movable press plate 17 and the upper mold 18 or between the die set base 1 and the lower mold 12, or both. Floating die set for press machines. (2) Guide posts 2, 2 on both left and right sides of the die set base 1
A is vertically supported, and a molded movable platen 3 is attached to the guide columns 2 and 2A.
A movable pressing plate 7 is inserted and supported so as to be movable up and down, and among them,
A molding frame 13 is attached to the molding movable platen 3, and the lower die 12 attached to the die set base 1 side and the upper die 15 attached to the pressing movable platen 7 side are placed opposite to each other above and below the molding frame 13. A vibration generator 17 is provided between the movable press plate 7 and the upper mold 18 via a buffer 16, and a vibration generator 17 is provided between the die set base 1 and the lower mold 12. A floating die set for a press machine, characterized in that a vibration generator 11 is configured via a body 10. (3) Guide posts 2, 2 on both left and right sides of the die set base 1
A is vertically supported, and a molded movable platen 3 is attached to the guide columns 2 and 2A.
A movable pressing plate 7 is inserted and supported so as to be movable up and down, and among them,
A molding frame 13 is attached to the molding movable platen 3, and a lower die 12 attached to the die set base 1 side and an upper die 15 attached to the pressing movable platen 1 side are arranged to face each other above and below the molding frame 13. vibration generators 17 and 11 are installed between the movable pressing plate 17 and the upper die 18 or between the die set base 1 and the lower die 12, or both, and A lower chamber Y is formed between the movable molding plate 1 and the movable molding plate 3 in a manner that can be freely sealed, and an upper chamber Z is formed in the movable molding plate 7 and the movable pressing plate 7 in a freely hermetically sealed manner. A floating die set for press machines. (4) Guide posts 2, 2 on both left and right sides of the die set base 1
A is vertically supported, and a molded movable platen 3 is attached to the guide columns 2 and 2A.
The movable pressing plate 1 is inserted and supported so as to be movable up and down, and among them,
A molding frame 13 is attached to the molding movable platen 3, and a lower die 12 attached to the die set base 1 side and an upper die 15 attached to the pressing movable platen 7 side are arranged to face each other above and below the molding frame 13. A vibration generator 17 is provided between the movable press plate 7 and the upper die 18 via a buffer 16, and a buffer is provided between the die set base 1 and the lower die 12. A vibration generator 11 is provided via the die set base 1 and the molding movable platen 3, and an inner cylinder 40 and an outer cylinder 43 form a sealable lower chamber Y. This floating die set for a press machine is characterized in that a sealable upper chamber Z is formed between a platen 7 and a movable pressing platen 7 by an inner cylinder 43 and an outer cylinder 45.