JP3136450U - Castable mold with interchangeable female and male mold core - Google Patents

Abstract

[Objective] To provide a press casting mold in which a female and male mold core can be exchanged for cost reduction and environmental protection.
[Configuration] In the press casting mold in which the female male mold core can be exchanged, the movable side fixed plate of the mold seat is mainly provided with a large area plate receiving recess at the rear of the male mold recess, The plate receiving recess is mounted on a replaceable pressure receiving plate with a hole for insertion of the extrusion pin, and then the pressure receiving plate has sufficient durability to ensure resistance to high pressure during material injection. Adjacent to each other by a pair of mold foot blocks. Therefore, when the endurance life of the mold cavity is exhausted, only the female mold core, male mold core, and pressure receiving plate need to be replaced, which greatly reduces the cost of the mold and saves the environment. Benefits are provided.
[Selection] Figure 2

Description

  The present invention relates to a press casting mold, and more particularly to the latest structure of a press casting mold with replaceable female and male mold cores.

  The technique of press casting in a mold is a technique conventionally used in the manufacturing industry. For example, if zinc magnesium alloy is used to make a high-precision electronic component housing, the mold is well designed. All you need to do is to pour the alloy into the mold at high pressure and make the product quickly. Conventional press casting molds usually have a mold seat on the stationary side and a mold seat on the movable side, and the stationary mold seat is fixed. The seat can be assembled to be movable. The movable side can approach or move away from the stationary side along the moving direction, and performs a process such as sealing of the mold, injection, and opening of the mold.

  FIG. 1 shows a conventional press casting mold, in which a stationary mold seat 91 is composed of a stationary fixing plate 911 and a female mold core 912, and the female mold core 912 is a stationary side fixing plate 911. It is locked by a screw 913 in the female die recess 914. The stationary side fixing plate 911 is provided with a material injection port 915.

  The movable mold seat 92 of the press casting mold has a male mold core 922 provided on the opposite side of the movable fixed plate 921 and the stationary fixed plate 911. The male mold core 922 is a male mold core 922. It is locked in the mold recess 924 by a screw 923. The guide protrusion 925 is provided on the movable side fixed plate 921, and the guide protrusion 925 on the opposite side of the material injection port 915 is provided with a guide recess 925a on the bottom bottom side thereof. Thereby, the injected alloy can be injected into the cavity between the male mold core 922 and the female mold core 912 via the material injection channel 922a of the male mold core 922 to form a molded product. it can.

  The movable mold seat 92 is further provided with an upper plate set 926 that is restricted from moving between a pair of mold foot blocks 928. When opening the mold, the upper plate set 926 approaches the movable side fixed plate 921, and the plurality of push pins 927 on the movable side fixed plate 921 are moved through the plurality of through holes 929 to move the movable side fixed plate 921. The molded product is extruded from the male mold core 922 and collected.

  In the structure of a conventional press casting mold, the frequency of use of the male mold core 922 and the female mold core 912 before replacement is about 50,000 to 80,000 times, and the mold core 922 used about 80,000 times. The surface of the mold cavity between 912 and 912 cracks and their outer edges become very rough edges. Thus, the material injection area is large and affects the accuracy of the injected material. In such cases, all parts of the mold must be replaced with new ones.

  In the structure of the movable mold seat 92, the movable fixed plate 921 and the male mold core 922 must have through holes 929 and drill holes, so when replacing the male mold core 922 The movable side fixed plate 921 must also be replaced at the same time. This leads to an increase in cost, and the cost is very high, especially due to the unusually high material cost recently. And this further requires improvement in view of inducing environmental problems.

  Furthermore, to produce other products with such a conventional mold structure, the entire mold must often be replaced. This is for the following reason. That is, in each of the stationary mold seat 91 and the movable mold seat 92, the female mold core 912 and the male mold core 922 must open a plurality of new screw holes for opening the mold. If not, these new screw holes will overlap the existing screw holes and the movable mold seat 92 and the stationary mold seat 91 will be damaged and unsuitable for use. For this reason, in a conventional mold, a new male mold core and a new female mold core cannot be exchanged. And this invention is made | formed in view of this.

  In view of the above-mentioned drawback that the conventional male mold core and the new female mold core cannot be exchanged with the conventional press casting mold, in the present invention, the mold core is replaced with a new male mold core and a new female mold core. A press casting mold that can be replaced with a new one is provided. In this case, the movable side fixed plate of the mold seat is mainly provided with a plate receiving recess having a large area at the rear of the male mold recess, and the plate receiving recess has a plurality of insertion pins for insertion of the extrusion pin. It can be mounted with a replaceable pressure bearing plate with a hole, which is adjacent to the pair of mold foot blocks at the rear and is sufficient to guarantee high pressure resistance during material injection Has durability. Therefore, when the mold cavity usage limit is exhausted, only the female mold core, male mold core, and pressure plate need to be replaced, which greatly reduces the cost of the mold. And the benefits of environmental protection are provided.

  In the injection of alloy, the pressure range that can be generated by the pressure receiving plate is about 50 kg / cm3 to 300 kg / cm3, so that the two mold foot blocks are the pressure receiving plate and the movable side fixed plate The pressure receiving plate is supported adjacent to the contact area between the two lateral edges of the plate receiving recess. Meanwhile, the upper plate set is provided with pressure bearing posts having a central screw at each of the four corners for the screw-lock range of the movable fixed plate near the side surface of the plate receiving recess. Therefore, the end face of the pressure support post is adjacent to the contact area between the pressure receiving plate and the upper and lower portions of the plate receiving recess in order to provide a sufficient supporting force.

  In conclusion, according to the description disclosed above, the press casting mold having the replaceable male mold core and female mold core according to the present invention has utility modelability from the above viewpoint.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be clarified in its structure and use effect after reading the detailed description of the preferred embodiments with reference to the following drawings.

  Referring to FIGS. 2 to 5, the press casting mold mainly provided by the present invention is composed of a stationary mold seat 1 and a movable mold seat 2. The stationary side mold seat 1 is fixed, while the movable side mold seat 2 approaches the mold seat 1 in order to carry out processes such as sealing, pouring and opening the mold. It is mounted so that the position can be changed by moving away.

  The stationary mold seat 1 of the present invention mainly includes a stationary fixing plate 11 having a female mold recess 111 therein for receiving a replaceable female mold core 12. The four corners inside the female mold recess 111 of the stationary side fixing plate 11 each lock the female mold core 12, but are provided with screws 112 so as to maintain interchangeability. The stationary side fixing plate 11 has a material injection port 113, and each of the four corners has a guide rod hole 114.

  The movable mold seat 2 includes a movable fixed plate 21, a male mold core 22, a pressure receiving plate 23, an upper plate set 24, and a pair of mold foot blocks 25.

  A male mold recess 211 that can receive the replaceable male mold core 22 is formed inside the movable side fixed plate 21, and the male mold recess 211 has a plate receiving recess 212 having a large area at the rear thereof. is doing. The plate receiving recess 212 can be mounted on a replaceable pressure receiving plate 23 having a plurality of holes 231 for insertion of push pins. The pressure receiving plate is provided with an outer screw 232 and an inner screw 233 at each of its four corners, and the outer screw 232 is used to lock the pressure receiving plate 23 in the plate receiving recess 212 of the movable side fixed plate 21. However, the inner screw 233 is used to lock the male mold core 22 (see FIG. 6). The movable side fixed plate 21 is provided with guide holes 213 at the four corners thereof. The upper end of the male mold recess 211 of the movable side fixed plate 21 is provided with a guide protrusion 214, and the protrusion extends into the material injection port 113 of the stationary side fixed plate 11 when the material is injected. The guide protrusion 214 is provided with a guide recess 215 at the bottom of the lower portion thereof, so that the injection material can be injected into the mold cavity between the female and the male mold cores 12 and 22 through the material injection channel 221. ing. The movable side fixed plate 21 includes fixed plate guide rods 216 at the four corners of the movable side fixed plate 21. When the mold is sealed, the fixed plate guide rod 216 is placed in the corresponding guide rod hole 114 of the stationary side fixed plate 11. It is postponed.

  The upper plate set 24 includes inner and outer upper plates 241 and 242, and the width and the height thereof are thicker and higher than those of the pressure receiving plate 23, respectively. The outer upper plate 242 includes a plurality of push pins corresponding to the holes 231 respectively. The upper plate set 24 further includes upper plate guide posts 244 at the four corners of the upper plate set 24. When the upper plate set 24 approaches the movable side fixed plate 21 to extrude the product with the push pin 243, the upper plate guide The posts 244 are extended into guide holes 213 provided at the four corners of the movable side fixed plate 21, respectively.

  The upper plate set 24 is provided with a pair of mold foot blocks 25 at its rear portion in order to provide support for the pressure receiving plate 23 at the time of injection, and the mold foot block 25 includes a rear end thereof. Further, a flange 251 for preventing the upper plate set 24 from moving backward is formed. The mold foot block 25 is locked on the movable side fixed plate 21. Referring to FIG. 6, the mold foot block 25 is adjacent to the contact area between the pressure receiving plate 23 and the two lateral edges of the plate receiving recess 212 of the movable side fixed plate 21. In addition, the upper plate set 24 includes a pressure support post 3 having a central screw 31 adjacent to the range of the movable side fixing plate 21 near the side surface of the plate receiving recess 212 at each of its four corners. Therefore, the end face of the pressure support post 3 is adjacent to the contact range between the pressure receiving plate 23 and the upper and lower portions of the plate receiving recess 212 in order to provide a sufficient support force as shown in FIG. .

  In the press casting process, the movable mold seat 2 is moved to approach the stationary mold seat 1, and then the alloy is injected into the material inlet 113 of the stationary plate 11, Through the guide recess 215 of the movable side fixed plate 21, it is poured into the mold cavity between the female and the male mold cores 12, 22 in order to make a product. Thereafter, the movable mold seat 2 is moved away from the stationary mold seat 1 to release the mold. The product then passes through the pressure receiving plate 23 by the action of the push pin 243 pushed by the upper plate set 24 (see FIG. 6 where the upper plate set 24 moves upward), and the extruded male mold core 22 is And then recovered again.

  One thing worth noting is that the pressure receiving plate 23 on the movable fixed plate 21 of the movable mold seat 2 in the present invention can be removed. This means that both the male mold core 22 on the movable movable plate 21 and the female mold core 12 on the stationary stationary plate 11 can be removed for replacement. As a result, when the mold cavity is exhausted in the service life, only the female mold core 12, the male mold core 22, and the pressure receiving plate 23 are replaced as necessary. By this method, the cost of the mold is greatly reduced, and environmental conservation advantages are provided.

In addition, due to the special design of the position of the pressure support post 3 and the mold foot block 25 at the rear of the movable fixed plate 21, the pressure receiving plate 23 has sufficient durability to guarantee the resistance to pressure during material injection have. Thereby, the stability and safety of the product are maintained.

It is an open perspective view of the conventional press casting mold. It is an open perspective view of the present invention. It is a perspective view after the assembly of the present invention. FIG. 3 is an open perspective view of the present invention viewed from the opposite direction of FIG. FIG. 4 is a perspective view after assembly of the present invention viewed from the opposite direction of FIG. 3; FIG. 4 is a cross-sectional view taken along the line AA in FIG. 3 of the present invention. FIG. 4 is a cross-sectional view taken along the line BB in FIG. 3 of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Stationary mold seat 11 Stationary fixed plate 111 Female mold recessed part 112 Screw 113 Material inlet 114 Guide rod hole 12 Female mold core 2 Movable mold seat 21 Movable side fixed plate 211 Male mold Recessed part 212 Plate receiving recessed part 213 Guide hole 214 Guide protrusion Guide protrusion 215 Guide recessed part Guide recessed part 216 Fixed plate guide rod 22 Male mold core 221 Material injection channel 23 Pressure receiving plate 231 Hole 232 Outer screw 233 Inner screw 24 Upper plate set 241 Inner upper plate 242 Outer upper plate 243 Extrusion pin 244 Upper plate guide post 25 Mold foot block 251 Flange 3 Pressure support post 31 Center screw 91 Mold seat 92 Mold seat

Claims (8)

A press casting mold adjusted to replace the male and female mold core 12,
A stationary mold seat 1 comprising a stationary side fixing plate 11 having a female mold recess 111 inside for receiving a replaceable female mold core 12;
In order to receive a replaceable male mold core 22, the movable mold seat 2 is provided with a movable fixing plate 21 having a male mold recess 211 on the inner side. A plate receiving recess 212 having a larger area than the mold recess 211, and the plate receiving recess 212 is mounted on the replaceable pressure receiving plate 23 having a plurality of holes 231 for inserting the push pin 243; The plate 23 includes an outer screw 232 and an inner screw 233 at each of its four corners; the outer screw locks the pressure receiving plate 23 within the plate receiving recess 212 of the movable side fixing plate 21. And the inner screw 233 is used to lock the male mold core 22, and the movable mold seat 2;
The upper plate set 24 including the inner side 241 and the outer upper plate 242 has a width and a height that are smaller and higher than each of the pressure receiving plates 23, respectively. The outer top plate 242 includes a plurality of push pins 243 corresponding to each of the holes; the top plate set 24 provides the support force received by the pressure receiving plate 23 during injection at the rear. An upper plate set 24 comprising an inner and outer upper plate, characterized by comprising a pair of mold foot blocks 25;
The movable side mold seat 2 is moved closer to the stationary side mold seat 1 and then the alloy forms the product 12 and the male mold core to form a product. The mold seat 2 on the movable side is then moved away from the mold seat 1 on the stationary side to open the mold; The product passes through the pressure receiving plate 23 and is pushed out of the male mold core 22 by the action of the push pin 243 pushed by the upper plate set 24; The male mold core 22, the pressure receiving plate 23 in the stationary mold seat 1, and the female mold core 12 are all adjusted so that they can be removed for replacement. A press casting mold adjusted to replace the male and female mold cores.   The two mold foot blocks 25 are adjacent to a contact range between the pressure receiving plate 23 and two lateral edges of the plate receiving recess 212 of the movable side fixed plate 21. 2. A press casting mold adjusted to replace the male and female mold cores according to claim 1.   3. The male and female mold core according to claim 2, wherein the mold foot block 25 is formed with a flange 251 at its rear end to prevent the upper plate set 24 from moving backward. Press casting mold adjusted to replace.   The upper plate set 24 has a pressure bearing post 3 having a central screw 31 for screw locking into the range of the movable side fixed plate 21 near the lateral side of the plate receiving recess 212 at each of its four corners. The pressure support post 3 is adjacent to the contact range between the pressure receiving plate 23 and the upper and lower portions of the plate receiving recess in order to generate a sufficient supporting force. 2. The press casting mold adjusted to exchange the male and female mold cores according to claim 1.   The upper plate set 24 further comprises an upper plate guide post 244 at each of its four corners; when the upper plate set approaches the movable fixed plate 21 to extrude a product with the push pin 243; 5. The male and female mold cores according to claim 4, wherein the upper plate guide posts are respectively extended into the guide holes 213 provided at the four corners of the movable side fixed plate 21. Press casting mold adjusted to replace.   The stationary side fixing plate 12 of the stationary mold die 1 has a material injection port 113, and the upper edge of the male mold recess 211 of the movable side fixing plate 22 is connected to the material injection port 113. A guide projection 214 extending; the guide projection comprises a guide recess 215 at the bottom thereof, and an injection material is injected into the mold cavity between the male and female mold cores. 2. A press casting mold adjusted to exchange male and female mold cores according to claim 1, wherein the mold is injected through a channel 221.   The stationary side fixing plate 12 has guide rod holes 114 at its four corners, and the movable side fixing plate includes a fixing plate guide rod 216 at each of its four corners, and the mold 2. The male and female mold cores according to claim 1, wherein the fixing plate guide rod is extended into one of the corresponding guide rod holes when the sealing plate is sealed. Adjusted press casting mold.   2. The male and female mold cores according to claim 1, wherein the four corners inside the female mold recess 111 of the stationary side fixing plate 12 are each provided with a screw for locking the female mold core. Press casting mold adjusted to replace.