WO2008061475A1

WO2008061475A1 - Mould control apparatus for powder molding press

Info

Publication number: WO2008061475A1
Application number: PCT/CN2007/071094
Authority: WO
Inventors: Guangbao Su
Original assignee: Guangbao Su
Priority date: 2006-11-20
Filing date: 2007-11-19
Publication date: 2008-05-29
Also published as: CN100560347C; CN1962250A

Abstract

A mould controller for powder molding press belongs to mechanical technology field. The present problem of complicated construction and high cost is solved in the art. Said controller is arranged on the table (1) of powder molding press and under the punch head (2). It comprises a mould base (3) mounted with mould core (4), track (1a) mounted on the table (1). Said mould base (3) is mounted on the track (1a); the mould base (3) is connected to transmitter; and the transmitter drives the mould base (3) to slide along the track (1a) repeatedly. Said apparatus has stable operation and high efficiency with simply construction with low cost.

Description

Mold control technology for powder molding machine

The invention belongs to the field of mechanical technology and relates to a powder molding machine, in particular to a mold control device for a powder molding machine. Background technique

The workpiece cast from the powder ffi has a simple manufacturing process and a low manufacturing cost, and therefore, the powder molding machine is widely used in machining.

Usually, the core of the powder molding machine is placed on the table surface, and once the powder raw material is fed into the core, the workpiece can be pressed into shape by pressing the stamping head at the core. For example, a "powder die casting machine" provided by Chinese Patent No. 01231 180, 4 includes a crankshaft connected to a power section, an upper ram is provided at the bottom of the crankshaft, and an upper punch for punching powder is provided at the bottom of the upper ram. The head, corresponding to the lower portion of the upper punch, is provided with a middle mold, and the powder placed in the middle mold can be die-casted when the upper punch is pressed down into the middle mold. At the same time, a first: cam is arranged on one side of the crankshaft. When the ffi-cast workpiece needs to be retracted, the mold can be demoulded by pressing down the mold-removing rod connected to the second cam.

It can be seen that the above-mentioned casting machine can easily withdraw the pressed workpiece after the workpiece is pressed. However, when the above-mentioned die casting machine withdraws the workpiece, the second punch, the mold releasing lever, the pivoting block and the like are engaged to cause the lower punch to eject the processed workpiece. Obviously, the 垓 demoulding mechanism is too complicated, making the machine cost higher. Obviously, maintenance is also

Summary of the invention

The present invention is directed to the prior art to the present problem, there is provided a use of stability, a simple structure of the mold powder compression molding machine control apparatus _¾

The object of the present invention can be achieved by the following technical solutions: A mold control device for a powder molding machine, which is disposed at the table top of the powder molding machine and is located in a powder molding machine Under the stamping head, it comprises a mold base, and the mold base is provided with a core, characterized in that: the table surface is provided with a guide rail, the mold base is placed on the guide rail, and the mold base is connected with a set of transmission mechanisms The mold base can be reciprocally slid along the guide rail by the transmission mechanism.

The powder head of the powder molding machine is pressed down to the core to press the powder material at the core into a workpiece.

In the mold control device of the powder molding machine, since the transmission mechanism can drive the mold base on the guide rail..]:. !1, when the workpiece is made of Hi, the mold base slides to the bottom of the stamping head, that is to say, the core is located directly below the punching head, and the stamping head after pressing down can be mounted on the core. Powder material is pressed into workpiece

After the mold base is moved and removed from directly below the stamping head, the workpiece at the core can be easily withdrawn or powdered into the core.

In the above mold control device of the powder molding machine, the transmission mechanism is composed of a turntable and a connecting rod, and the turntable is connected to the power machine ,, one end of the connecting rod is connected to the non-center position of the turntable, and the other end is hinged at the above On the wedge seat.

When the power mechanism drives the turntable to rotate, the connecting rod hinged on the turntable.. h follows the movement, because the two ends of the connecting rod are respectively hinged on the turntable and the mold base, so that the turntable can be driven by the connecting rod during the rotation of the turntable The mold base reciprocates on the guide rail. The motor, the shaft of the motor is fixed on the opposite side of the turntable and the hinge of the connecting rod. During the running of the motor, the rotating shaft can be rotated by the rotating shaft.

Alternatively, in the above-described mold control device for a powder molding machine, the power unit is a gear train, the above-described turntable is a gear, and the turntable meshes with one of the driven gears. The rotation of the turntable can be driven during the operation of the gear set.

In another case, in the mold control device of the powder molding machine described above, the transmission mechanism is composed of a power cam, a transmission rod, a holding spring and a blocking body, and the power cam is fixedly connected to the rotating shaft of the motor, and is blocked. The body is fixedly connected to the table top, the transmission rod passes through the block body and one end thereof is fixedly connected with the above-mentioned mold base, and the top spring is sleeved on the transmission rod and its two The other end is against the power cam

Therefore, the motor drives the power. During the rotation of the ί3⁄4 wheel, the transmission rod moves with the left and right movements under the action of the top elastic. !:11 is connected to the drive rod and fixed to the mold base, and finally the mold base will slide back and forth along the guide rail.

In the above mold control device for a powder molding machine, the core is composed of a stock body and a stripper body, and the stock body is connected to the mold base, and the stock body is provided on the stock body. The upper part of the stripping body has a stripping head matched with the material hole and the stripping head is located in the material hole, the lower part of the stripping body is provided with a guiding rod, and the guiding rod is in contact with the jack mechanism through the mold base The stripping body is sleeved with a spring, and the two ends of the spring push the workpiece out of the hole through the stripping mechanism. Jack mechanism When the top pressure guide rod moves up, the stripper moves up, so that the stripping head located in the hole protrudes out of the hole. Obviously, during this process, the stripping head will be placed in the bore and has been press-formed.

When the 3⁄4 jack machine does not press the guide rod, the stripping body moves down under the elastic force of the bullet, and the stripping head of the stripping body is restored; To the original position.

In the above-described mold control device for a powder molding machine, it is convenient to process and assemble such a structure in which the stripping head and the guide rod of the stripping body are of a separate structure.

In the above mold control device for a powder molding machine, the number of the guide bars is two. The number of guide rods can be set according to the actual situation. According to the inventor's test, the two are set to the most.

In the above mold control device of the powder molding machine, the core further comprises a core rod which is disposed in the body of the stripping body, the lower end of the core rod is fixedly connected with the mold base, and the upper end of the core rod is taken out and stripped. The body is located in the center of the port port. With such a structure, a ring-shaped workpiece can be made ffi

In the above mold control device for a powder molding machine, the ejector mechanism package The straight rod is arranged directly and the swing rod 3⁄4 and the cam are arranged laterally, and the lower end of the top rod is connected with one end of the swing rod, the upper end of the top rod is located between the table top and the mold base, and the other end of the swing rod can be coupled with the cam The contact and the middle portion of the swing rod are placed in the table top, and the top rod is sleeved with a reset magazine, and the two ends of the reset bullet are respectively applied to the inner side of the table and the top rod.

Moving the above-mentioned stripping body up is achieved by the ram mechanism. During the rotation of the cam, it can be in contact with the end of the pendulum so that the pendulum swings around it and the overlap in the table. During the swinging of the swinging rod, the ejector rod hinged thereto is moved up and down. Shift after shift push guide rod, the guide lever in the shift of the stripper body, through the stripper member which has been press-molded workpiece from the supply aperture 4 on the jack ³

^ When the cam is not in contact with the pendulum rod, the ejector pin moves down under the action of the return spring to return the ejector rod to its original position.

In the above mold control device for a powder molding machine, the mold base is provided with at least two adjusting screws, and the lower end of the adjusting screw is located at the lower end of the mold base, and the upper end of the adjusting screw is in contact with the stripping body. Rotating the adjusting screw can push the upper end to push the stripping body, that is to say, the position of the stripping body in the hole can be adjusted by adjusting the screw, and the workpiece can be pressed with various thicknesses by such a structure.

Compared with the prior art, the mold control device of the powder molding machine passes the mold base sliding on the guide rail so that the mold core is directly under the punching head when the workpiece is pressed, and the mold core is directly under the punch when the workpiece is pulled out. Move the shovel and push the workpiece out with the ejector. Obviously, it has higher work stability and higher production efficiency.

At the same time, the device consists only of a turntable, a connecting rod and a mold base. Therefore, its structure is relatively simple and its manufacturing cost is low. DRAWINGS

Fig. 1 is a schematic view showing the outline of the mold control device of the powder molding machine. Fig. 2 is a schematic sectional view showing a mold control device of the present powder molding machine. Figure 3 is a schematic plan view showing the mold control device of the powder molding machine.

S 4 is a schematic structural view of the power mechanism at the embodiment::::.

Figure 5 is a schematic view showing the structure of the transmission mechanism in the third embodiment. In the figure, 1, table; l a., rail; lb, block; 2, stamping head; 3., mold base; 4, core; 5, turntable; 6, connecting rod; 7, motor; 8, storage Material; 8a., hole; 9, stripping body; 9a., stripping head; 9b, guide rod; 10, spring; 1 1, ejector; 12, swing rod; 13, cam; Congratulations; 15 -, core rod; 16 , gear set; 16a, driven gear; Π,, power cam; 18, transmission rod; 19, adjusting screw; 20, holding spring

As shown in Figs. 1 and 2 and circle 3, the powder molding machine includes a table 1 and a punching head 2 which are disposed on the frame, and the punching head 2 is located above the table 1. The mold control device of the powder molding machine is placed at the table top 1 and below the punching head 2.

It comprises... a die holder 3 and a transmission mechanism and a guide rail arranged on the table top l a. The die holder 3 is placed on the guide rail l a and slidable along the guide rail l a , and the mold base 3 is provided with a core 4 .

The transmission mechanism is composed of a turntable δ and a connecting rod 6. The transmission mechanism is further provided at a center of the side of the turntable 5, and one end of the connecting rod 6 is connected to a non-center position on the other side of the turntable δ. The other end of the connecting rod 6 is ammonium-connected to the mold base 3.

As shown in Fig. 2, the core 4 is composed of a stock body 8 and a stripping body 9 . The stock body 8 is connected to the above-mentioned mold base 3, and the stock body 8 has a hole 8a penetrating therethrough. The stripping body 9 is composed of an upper stripping head 9a and a lower guiding rod 9b. The outer diameter of the stripping head 9a. is slightly smaller than the inner diameter of the 1000-hole 8a and the stripping head 9a is located in the bowl 8a; the guiding rod 9b is worn. Over-die: has a seat 3 and its end is in contact with the jack mechanism. In this embodiment, the guide rods 9b are two. The stripping body 9 is also provided with a spring 10, and the two ends of the spring 10 act on the stock body 8 and the stripping body 9, respectively.

The mast mechanism is located in the table top 1. It comprises a vertically disposed jack 1 1 and a laterally disposed swing rod 12 and a cam 13. The lower end of the jack 1 1 is connected to one end of the swing rod 12, and the upper end of the jack U is connected. Located between the table 1 mold base 3, the other of the swing rod 12 The end can be in contact with the cam 13 and the middle of the swing rod 12 is placed in the table top 1, and the top rod 11 is sleeved; The magazine spring 14 has two ends of the return spring 14 acting on the inner side of the table 1 and the top rod 1 1 respectively. In this embodiment, the cam 13 is connected to the rotating shaft of the motor, and the motor can be driven to rotate by the running motor.

As shown in FIG. 1 and FIG. 2, during the working process, the powder molding machine equipped with the mold control device drives the turntable 5 through the rotating shaft of the motor 7 during the operation of the motor 7, and the turntable 5 passes through during the rotation. The rod 6 drives the mold base 3 to slide on the guide rail la. When the die holder 3 slides to the core 4 of which J:: is directly under the punching head 2, the punching head 2 is pressed down, thereby pressing the powder raw material located in the core 4 into a workpiece oppositely, when the die holder 3 is reversed After sliding in the direction, the guide rod 9b of the stripping body 9 is pressed by the ejector mechanism, so that the stripping body 9 is moved up and the workpiece which is pressed in the orifice 8a. is ejected through the stripping head 9a.

After the workpiece is ejected, the powder material can be filled into the hole 8 a to facilitate the pressing of the workpiece. In the process of the top stripping body 9, the ram mechanism is in contact with the end of the pendulum rod 12 by the rotating cam 13, so that the pendulum rod 12 swings around its overlap with the countertop 1 . The swinging rod 12 swings the ejector lever U that is hinged up and down. The ejector rod 1 1 moves up and pushes the guide rod 9b upwards.

When the cam 13 is not in contact with the swing lever 12, the jack 11 is moved downward by the reset magazine 14 to return the jack 11 to the home position.

In order to manufacture workpieces of different thicknesses, the adjusting screw 19 can be rotated. Specifically, during the operation of the adjusting screw 19, the stripping head 9a of the stripping body 9 is moved up and down in the orifice 8a. Obviously, the stripping head 9a. can be made at different positions in the upper and lower holes 8a.

Further, a core rod 15 is disposed at the core 4, and the core rod 15 is disposed in the stripping body 9. The lower end of the core rod 15 is fixed to the mold base 3, and its upper end is located in the il: of the port on the hole 8a. Obviously, such a structure can machine a ring-shaped workpiece.

Embodiment 2

The structure and principle of the first embodiment are basically the same as those of the first embodiment. The difference is that the power mechanism is the gear set 16, and the outer side of the turntable 5 has teeth, that is, The turntable 5 is a gear, and the j turntable 5 is meshed with a driven gear 16a. of the gear set 16, as shown in FIG.

It can be seen that the gear set 16 can drive the turntable 5 - the same rotation during the operation of the gear set 16 . The structure and principle of the first embodiment are basically the same as those of the first embodiment. The difference is that the transmission mechanism is composed of the power cam 17, the transmission rod 18, the holding spring 20 and the blocking body lb, and the power cam 17 is fixed to the rotating shaft of the motor. The upper body lb is connected to the table top 1 , and the transmission rod 18 is fixedly connected to the mold base 3 through one end of the blocking body lb, and the top bearing 20 is sleeved on the transmission rod 18 and its two ends respectively act on On the transmission rod 18 and the stopper, the other end of the transmission rod 18 abuts against the power cam 17 by the elastic force of the holding spring 20, as shown in FIG.

Since the blocking body lb is attached to the table top 1, the two ends of the top holding magazine 20 act on the blocking body l b and the transmission rod 18, respectively. Thus, a wall of the transmission rod 18 abuts against the power cam.

When the motor drives the power cam, the transmission rod 18 will move left and right under the action of the top holding spring 20 during the rotation. The movement of the transmission rod 18 causes the mold base 3 to slide along the guide rail la

Claims

1. A mold control device for a powder molding machine, which is disposed at a table surface α) of a powder flat knitting machine and located below a punching head (2) of a powder molding machine, which comprises a die holder (3), a mold A seat core (4) is mounted on the seat f3), characterized in that the table top (1) is provided with a guide rail (la), the mold base (3) is placed on the guide rail (la), and the mold base (3) ) connected to a set of transmission mechanisms, which can drive the mold base (3) to slide back and forth along the guide rail (la)

2. The mold control device for a powder molding machine according to claim 1, wherein the conveyor is composed of a turntable (5) and a connecting rod (6), and the turntable (5) is connected to the power mechanism. One end of the connecting rod (6) is dumped at a non-center position of the turntable (5), and the other end is hinged to the above-mentioned mold base (3).

The mold control device for a powder molding machine according to claim 2, wherein the power mechanism is a motor (7), and a rotating shaft of the motor (7) is fixed to the turntable (5) and the connecting rod (6) The opposite side of the connection.

A mold control device for a powder molding machine according to claim 2, wherein the power mechanism is a gear set (16), and the turntable (5) is a gear, a turntable (5) and A driven gear (16a) in the gear set (16) is engaged

5. The mold control device for a powder molding machine according to claim 1, wherein said transmission mechanism is composed of a power cam Π 7), a transmission rod (18), a holding spring (20), and a blocking body (lb). The composition, the power cam (17) is fixed on the rotating shaft of the motor, the blocking body (lb) is connected with the table top (1), and the transmission rod (18) passes through the blocking body (lb) at one end thereof and the above mold holder (3) ) painting, holding the magazine (20) on the drive rod

(18) Upper and its two ends act on the transmission rod (18) and the stopper (lb) respectively, and the other end of the transmission rod (18) abuts against the power cam under the elastic force of the holding spring (20) 17) On.

6. A mold for a powder molding machine according to claim 2 or 2 or 3 or 4 or 5. Control device, characterized in that the core (4) is composed of a stock body (8) and a stripping body (9), and the stock body (8) is connected to the mold base (3) and The storage body (8) is provided with a hole (8a) penetrating therethrough, and the upper part of the stripping body (9) has a stripping head (9a) matching the hole (8a) and the stripping head ( 9a) located in the hole (8a), the lower part of the stripping body (9) is provided with a guiding rod (9b), and the guiding rod (9b) is in contact with the jack mechanism through the mold base (3), the stripping body (9) The upper sleeve has a spring (10), and the two ends of the spring (10) act on the storage body (8) and the stripping body (9), respectively.

The mold control device for a powder molding machine according to claim 6, wherein the stripping head (9a.) and the guide rod () of the stripping body (9) are of a separate structure.

The crosspiece control device for a powder molding machine according to claim 6, wherein the core (4) further comprises a core rod that is disposed in the stripping body (9) ( 15)., the lower end mold holder (3) of the core rod ("15) is fixed, and the upper end of the core rod (15) is passed out of the stripping body (9) at the center of the port on the hole (8a).

9. A mold control apparatus for a powder molding machine according to claim 6, wherein said ejector mechanism comprises a vertically disposed ejector rod (11) and a laterally disposed oscillating rod (12) and a cam ( 13), the lower end of the jack (11) is hinged to the end of the swing rod (12), and the upper end of the jack (11) is located between the table top (1) and the mold base (3), and the swing rod (12) is another One end can be in contact with the cam (13) and the middle of the swing rod (12) is placed in the table top (1), and the top rod (U) is sleeved with a return spring (1: ), a return spring Π 4) The ends act on the inside of the table (1) and on the ram (11).

0. The mold control device for a powder molding machine according to claim 6, wherein the mold base (3) is provided with at least two adjusting screws (19), and the lower end of the adjusting screw (19) Located at the lower end of the mold base (3), the upper end of the adjusting screw (19) can be in contact with the stripping body (9).