JP3232142U - Die casting equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a die casting apparatus in which the structural strength of a die casting component is ensured. A die casting device 10 cooperates with a cavity 110 for accommodating a molten metal and a mold 100 provided with a plurality of pouring passages 120. Multiple pouring passages communicate with each other at different positions in the cavity. The die casting device includes a plurality of injection mechanisms 200, each of which includes a nozzle 240 corresponding to a pouring passage, and the nozzle is provided with an injection passage 241 communicating with the cavity so as to inject molten metal into the cavity. This reduces the distance from different locations in the cavity to the injection passage. The flow resistance and pressure loss of the molten metal are reduced, and die-cast parts can be molded quickly and accurately. When a new filling space is formed in the peripheral portion of the cavity due to the solidification of the molten metal and the contraction of the volume, the molten metal in different injection passages is quickly filled in the new filling space, thereby providing "shrinkage compensation". It will be realized. [Selection diagram] Fig. 3

Description

The present invention relates to the field of die casting technology, and particularly to a die casting device.

Die casting equipment is widely applied in the manufacturing field of automobiles and communication equipment. The die casting device includes an injection mechanism that works with the mold. The injection mechanism injects molten metal into the cavity of the mold, cools and solidifies the molten metal, and molds the desired die-cast component. In a conventional die casting apparatus, when a die casting part having a large length or a small thickness is molded, a structural chip is formed in the die casting part after molding, the strength becomes insufficient, and accurate molding cannot be performed. there is a possibility. Further, when a die-cast part having a large and complicated structure is molded, there is also a problem that the die-cast part is structurally insufficient in strength and cannot be molded accurately.

One of the technical problems to be solved by the present invention is to ensure that the die-cast part is formed quickly and accurately and has sufficient structural strength.

The die casting device of the present invention is a die casting device that cooperates with a cavity and a mold provided with a plurality of pouring passages communicating with each other at different positions of the cavity, and includes a plurality of injection mechanisms, and each of the injection mechanisms is included. Each mechanism includes a nozzle corresponding to the pouring passage, and the nozzle is provided with an injection passage communicating with the cavity so as to inject molten metal into the cavity.

In one embodiment, the cavity is partially bounded by the left inner wall of the mold, the pouring passage includes a left pouring passage penetrating the left inner wall, and the injection. The mechanism includes a left injection mechanism, the nozzle of the left injection mechanism corresponds to the left pouring passage, the left injection mechanism is one or more, the number of the left pouring passages and the left. Is equal to the number of injection mechanisms.

In one embodiment, the cavity is further bounded by a part of the inner wall surface on the right side of the mold, and the pouring passage includes a right pouring passage penetrating the inner wall surface on the right side. The injection mechanism includes the right injection mechanism, the nozzle of the right injection mechanism corresponds to the right pouring passage, the right injection mechanism is one or more, and the number of the right pouring passages and the said. Equal to the number of injection mechanisms on the right.

In one embodiment, the left injection mechanism and the right injection mechanism are both such that the central axis of the injection passage is parallel to the first direction, or the left injection mechanism and the right injection mechanism are In each case, the central axis of the injection passage forms a predetermined angle with respect to the first direction.

In one embodiment, a part of the boundary of the cavity is further defined by the front inner wall surface and the rear inner wall surface of the mold, and the front inner wall surface and the rear inner wall surface are spaced apart from each other in the second direction. Arranged, the second direction is perpendicular to the first direction, the front inner wall surface is connected between one end of the left inner wall surface and the right inner wall surface, and the rear inner wall surface is connected. The wall surface is connected between the left inner wall surface and the other end of the right inner wall surface, and the pouring passage penetrates the front inner wall surface and the rear inner wall surface. The injection mechanism further includes a front injection mechanism and a rear injection mechanism, and the nozzle of the front injection mechanism corresponds to the front injection passage and the rear injection. The nozzle of the mechanism corresponds to the rear pouring passage.

In one embodiment, the front injection mechanism and the rear injection mechanism are both parallel to the central axis of the injection passage in the second direction, or the front injection mechanism and the rear injection mechanism are both injection passages. The central axis of is formed at a predetermined angle with respect to the second direction.

In one embodiment, the front injection mechanism and the rear injection mechanism are each one or more, the number of the front injection mechanism and the front pouring passage is equal, and the rear injection mechanism and the rear injection are the same. The number of hot water passages is equal.

In one embodiment, a part of the boundary of the cavity is further defined by an upper inner wall surface and a lower inner wall surface of a mold, and the upper inner wall surface and the lower inner wall surface are arranged at intervals in a third direction. The third direction is perpendicular to both the first direction and the second direction, and the upper inner wall surface is connected between one end of the left inner wall surface and the right inner wall surface. The lower inner wall surface is connected between the left inner wall surface and the other end of the right inner wall surface, and the pouring passage is an upper pouring passage penetrating the upper inner wall surface and the lower pouring passage. Further including a lower pouring passage penetrating the inner wall surface, the injection mechanism further includes an upper injection mechanism and a lower injection mechanism, the nozzle of the upper injection mechanism corresponds to the upper pouring passage, and the lower injection The nozzle of the mechanism corresponds to the lower pouring passage.

In one embodiment, the upper injection mechanism and the lower injection mechanism are both parallel to the central axis of the injection passage in the third direction, or the upper injection mechanism and the lower injection mechanism are both centers of the injection passage. The shaft forms a predetermined angle with respect to the third direction.

In one embodiment, the upper injection mechanism and the lower injection mechanism are each one or more, the number of the upper injection mechanism and the upper pouring passage is equal, and the lower injection mechanism and the lower pouring passage are equal to each other. The numbers are equal.

One of the technical effects of one embodiment of the present invention is that the same pouring passage communicates with the cavity at different positions of the cavity, and the nozzle provided with the injection passage corresponds to the pouring passage. The distance from the different position to the injection passage is reduced and the far end of the cavity is removed so that any position in the cavity is near the end to the different injection passages. As a result, the flow path of the molten metal is reduced, and the flow resistance and pressure loss of the molten metal are reduced, so that the total time for filling the entire cavity with the molten metal can be shortened, and the efficiency of molding the die-cast part is improved. Since each part of the cavity is filled with molten metal, the die-cast part after solidification can be accurately molded so as to be structurally perfect. Then, when a new filling space is formed in the peripheral portion of the cavity due to the solidification of the molten metal and the contraction of the volume, the distance between the new filling space and the injection passage which is different at any position is shortened. The flow path through which the molten metal reaches is close to any position in the filling space, and the viscous or solid metal mass generated by the solidification of the molten metal eliminates the obstacle to the subsequent flow of the molten metal. The molten metal in different injection passages can be quickly filled to any position in the new filling space, and "shrinkage compensation" is realized. Finally, the structural strength of the die-cast parts is secured. In addition, since the number of injection mechanisms is large, the total amount of molten metal poured at one time in each injection mechanism is larger than the volume of the cavity, so it is necessary to secure a sufficient amount of molten liquid to fill the entire cavity. Can be done.

FIG. 1 is a perspective view of the structure of a die casting device according to an embodiment. FIG. 2 is a perspective view of the structure of the die casting device shown in FIG. 1 shown at another angle. FIG. 3 is a perspective view of a cross-sectional structure of the die casting device shown in FIG. 1 in the lateral direction. FIG. 4 is a perspective view of a cross-sectional structure of the die casting device shown in FIG. 1 in the vertical direction. FIG. 5 is a block diagram of a process routine of the die casting method according to one embodiment.

In order to better understand the present invention, the present invention will be fully described below with reference to the drawings. The drawings show preferred embodiments of the present invention. However, the present invention can be realized in many different forms and is not limited to the embodiments described herein. Rather, the provision of these embodiments is intended to provide a clearer and more complete understanding of the present disclosure.

It should be understood that the statement that one part is "fixed" to another part may be directly on another part or may have a part placed in between. The statement that one part is "connected" to another part may be directly in another part, or there may be a part in between. The terms "inside," "outside," "left," and "right" and similar expressions used herein are for illustration purposes only and are not meant to represent a single embodiment.

See FIGS. 1, 3 and 4. The die casting device 10 according to an embodiment of the present invention cooperates with the mold 100. The die casting device 10 includes an injection mechanism 200, a cavity 110 is provided in the mold 100, and there are a plurality of injection mechanisms 200. The injection mechanism 200 is connected to the mold 100, and each injection mechanism 200 is provided with an injection passage 241 for injecting molten metal into the cavity 110. The molten metal is a molten metal. Injection passages 241 of different injection mechanisms 200 communicate with at least two different positions in the cavity 110. Of course, injection passages 241 of the same injection mechanism may communicate with at least two different positions of the cavity 110.

Specifically, the mold 100 is further provided with a pouring passage 120. There are a plurality of pouring passages 120. The pouring passage 120 communicates the outside with the cavity 110. The different pouring passages 120 communicate with different positions in the cavity 110. The injection mechanism 200 further includes a nozzle 240, an injection passage 241 is provided in the nozzle 240, and the nozzle 240 corresponds to the pouring passage 120. For example, the nozzle 240 is inserted directly into the pouring passage 120. When the molten metal is injected into the injection passage 241 and the power portion of the injection mechanism 200 applies a certain amount of pressure to the molten metal, the molten metal in the injection passage 241 is injected into the cavity 110.

When molten metal is injected into the cavity 110 at a specific position of the cavity 110 using one injection mechanism 200, the length of the cavity 110 is always increased and the internal space is increased for die-cast parts having a large length or a small thickness. It becomes narrower, the flow resistance of the molten metal increases in the narrow cavity 110, and the pressure loss of the molten metal flowing through the cavity 110 also increases. Therefore, the molten metal in the injection mechanism 200 can be completely filled in the vicinity end portion of the cavity 110 with respect to the near end portion of the cavity 110 close to the injection mechanism 200. However, with respect to the far end portion of the cavity 110 away from the injection mechanism 200, the molten metal cannot reach the far end portion quickly because the flow path of the molten metal reaching the far end portion is long and the pressure loss is large. .. In addition to this, the molten metal at the near end portion already begins to solidify, which further hinders the molten metal flowing to the far end portion of the cavity 110, and the far end portion of the cavity 110 cannot be filled with the molten metal. Eventually, the die-cast part after molding will be chipped as a structure, and the die-cast part cannot be molded accurately. That is, the die-cast parts are discarded.

Even if the pressure of the injection mechanism 200 is sufficiently high and the entire cavity 110 can be filled with the molten metal, the volume of the molten metal shrinks in the process of cooling and solidifying due to the principle of thermal expansion and cold shrinkage. Then, at the near end portion and the far end portion of the cavity 110, the volume shrinks and the cavity 110 is not filled with the molten metal, so that a new filling space is created. At this time, the molten metal should be injected into the new filling space at the near end portion of the cavity 110 to realize "shrinkage compensation", but the molten metal solidifies and a viscous or solid metal mass is formed. The metal mass formed further compresses the flow space through which the molten metal flows to the far end portion of the cavity 110, further narrowing the flow space. As described above, the flow resistance and the pressure loss are further increased, so that it becomes impossible to inject the molten metal into the new filling space at the far end portion of the cavity 110 to realize "shrinkage compensation". Since it is not possible to realize "shrinkage compensation" by injecting molten metal into a new filling space, the thin-walled portion of the die-cast part is not dense and a large number of shrinkage holes are formed. As a result, the die-cast parts after molding have insufficient structural strength, and the performance of the product does not meet the technical standards. Further, since the flow path through which the molten metal flows to the far end portion of the cavity 110 becomes long, the total time for filling the entire cavity 110 with the molten metal becomes long. As a result, the efficiency of molding the die-cast part is lowered, and the die-cast part cannot be molded quickly within a short time.

For die-cast parts that are large and have a complicated structure, the total volume of the cavity 110 is always large, and the structure of the cavity 110 becomes more complicated. When the molten metal is injected into the cavity 110 at a specific position of the cavity 110 by using one injection mechanism 200, since the volume of the injection passage 241 of one injection mechanism 200 is limited, the injection mechanism 200 once. It is difficult to fill the cavity 110 having a large volume with the injection amount of the molten metal. Eventually, the die-cast part cannot be molded accurately because the die-cast part after molding has a chipped structure. That is, the die-cast parts are discarded. Even if the amount of molten metal poured by the injection mechanism 200 at one time is sufficiently large and the cavity 110 having a large volume can be filled, it can be seen by referring to the above-mentioned molding of a die-cast part having a large length and a small thickness. Similarly, the volume of the molten metal shrinks in the process of cooling and solidification, and new filling spaces are created at the near end portion and the far end portion of the cavity 110. The molten metal solidifies to form a viscous or solid metal mass, which further compresses the flow space through which the molten metal flows to the far end of the cavity 110. This flow space becomes narrower, the flow resistance and pressure loss further increase, the molten metal cannot be injected into the new filling space at the far end of the cavity 110, and "shrinkage compensation" cannot be realized. The far end of the is not dense and a large number of shrinkage holes are formed. Ultimately, the die-cast parts after molding do not have sufficient structural strength. In addition, the flow path through which the molten metal flows to the far end portion of the cavity 110 becomes long, which ultimately affects the molding efficiency of the die-cast part.

In the die casting device 10 of the above embodiment, since the injection passage 241 communicates with at least two different positions of the cavity 110, the distance from any position of the cavity 110 to the injection passage 241 is shortened. As a result, the near end portion is formed with respect to the injection passages 241 at different positions regardless of the position of the cavity 110, and the far end portion of the cavity 110 is removed. For die-cast parts with a large length or a small thickness, the flow path of the molten metal is reduced, the flow resistance and pressure loss of the molten metal are reduced, the total time for filling the entire cavity 110 with the molten metal is reduced, and the die casting is performed. The molding efficiency of parts is improved. Since each portion of the cavity 110 can be filled with molten metal, the die-cast structure after solidification becomes a complete and accurate molding. At the same time, when a new filling space is formed in the peripheral portion of the cavity 110 due to the solidification of the molten metal and the contraction of the volume, the distance from the different position of the new filling space to the different injection passage 241 becomes shorter. , The flow passages for the molten metal to reach different positions in this new filling space are reduced, the viscous or solid metal mass is no longer an obstacle to the flow of the molten metal, and the molten metal in the different injection passages 241 is eliminated. Is quickly filled in different positions in the new filling space, which realizes "shrinkage compensation" to prevent shrinkage holes from forming in the die-cast part and improve the precision of the die-cast part. Ultimately, the structural strength of the die-cast parts is ensured.

Since the number of injection mechanisms 200 is large for large and complicated die-cast parts, the total amount of molten metal poured by each injection mechanism 200 at one time becomes larger than the volume of the cavity 110, and the entire cavity 110 is covered. It is ensured that the molten metal is filled, and accurate molding is possible in which the structure of the die-cast part after solidification is perfect. When the molten metal is injected into the cavity 110 from a plurality of injection mechanisms 200 at the same time, the total time for filling the molten metal in the cavity 110 can be shortened, and the molding efficiency of the die-cast part is improved. Similarly, when the volume of the molten metal contracts to create a new filling space in the peripheral portion of the cavity 110, any position of this new filling space is short in distance from the different injection passages 241 and thus in different injection passages 241. It is ensured that the molten metal quickly fills different locations in the new filling space to achieve "shrinkage compensation". Ultimately, the structural strength of the die-cast parts is ensured. In addition, since die-cast parts having a large and complicated structure are molded at one time, it is possible to avoid producing each part of the product with different equipment and combining the parts with different tools to make a product. Efficiency will be improved, and the number of production equipment, labor costs, production costs and factory site area will be reduced.

See FIGS. 2, 3 and 4. In one embodiment, the cavity 110 is partially bounded by a left inner wall 111 and a right inner wall 112. The left inner wall surface 111 and the right inner wall surface 112 may be flat or curved. The left inner wall surface 111 and the right inner wall surface 112 are provided at intervals in the first direction (X-axis direction). For example, the first direction is horizontal and sideways. The pouring passage 120 includes a left pouring passage 121 and a right pouring passage 122, and the left pouring passage 121 communicates with the outside world, penetrates the left inner wall surface 111, and communicates with the cavity 110 to communicate with the right pouring passage. The passage 122 communicates with the outside world, penetrates the right inner wall surface 112, and communicates with the cavity 110. The injection mechanism 200 includes a left injection mechanism 211 and a right injection mechanism 212, and the nozzle 240 of the left injection mechanism 211 corresponds to the left pouring passage 121. The left injection mechanism 211 and the left pouring passage 121 have the same quantity, and both are formed in a one-to-one correspondence relationship. The nozzle 240 of the right injection mechanism 212 corresponds to the right pouring passage 122. The right injection mechanism 212 and the right pouring passage 122 have the same quantity, and both are formed in a one-to-one correspondence relationship.

The left inner wall surface 111 and the right inner wall surface 112 are arranged at intervals along the first direction. In this first direction, the left portion of the cavity 110 is arranged close to the left injection mechanism 211, so that the left portion of the cavity 110 is a near end portion with respect to the left injection mechanism 211. Since the right portion of the cavity 110 is arranged close to the right injection mechanism 212, the right portion of the cavity 110 is a near end portion with respect to the right injection mechanism 212. In this way, the distant end portion of the cavity 110 is removed in the first direction, the molten metal is filled in the entire cavity 110 along the first direction in a short time, and the die-cast part is formed quickly and accurately. Further, when a new filling space is formed in the peripheral portion of the cavity 110 due to the solidification of the molten metal and the contraction of the volume, the left portion of the new filling space is close to the injection mechanism 211 on the left, and the new filling space is formed. Since the right part of the right injection mechanism 212 is closer to the right injection mechanism 212, the molten metal of the left injection mechanism 211 is quickly filled in the left part of the new filling space, and the molten metal of the right injection mechanism 212 is the right part of the new filling space. Is filled quickly. Eventually, all the molten metal is filled in different positions in the new filling space, and "shrinkage compensation" is realized. This ensures the structural strength of the die-cast parts.

When there are a plurality of injection mechanisms 211 on the left and 212 on the right, the time for the cavity 110 to be filled with the molten metal is faster, and the time for the new filling space to be filled with the molten metal is also faster. Molding efficiency can be further improved. In both the front injection mechanism 221 and the rear injection mechanism 222, the central axis of the injection passage 241 may be parallel to the first direction. Of course, in both the front injection mechanism 221 and the rear injection mechanism 222, the central axis of the injection passage 241 may form a predetermined angle with the first direction. That is, the central axis is arranged so as to be inclined with respect to the first direction by intersecting the first direction. Therefore, by changing the injection direction of the molten metal, the time for the cavity 110 and the new filling space to be filled with the molten metal can be improved to some extent.

In one embodiment, the cavity 110 is further bounded by a front inner wall surface 113 and a rear inner wall surface 114. The front inner wall surface 113 and the rear inner wall surface 114 may be flat or curved. The front inner wall surface 113 and the rear inner wall surface 114 are arranged at intervals along the second direction (Y-axis direction). For example, since the second direction is horizontal and vertical, it is orthogonal to the first direction. The front inner wall surface 113 is connected between one end (front end) of the left inner wall surface 111 and the right inner wall surface 112. The rear inner wall surface 114 is connected between the left inner wall surface 111 and the other end (rear end) of the right inner wall surface 112. The pouring passage 120 further includes a pre-pouring passage and a post-pouring passage, and the pre-pouring passage communicates with the outside, penetrates the front inner wall surface 113, and communicates with the cavity 110. The post-pouring hot water passage communicates with the outside, penetrates the rear inner wall surface 114, and communicates with the cavity 110. The injection mechanism 200 further includes a front injection mechanism 221 and a rear injection mechanism 222. The nozzle 240 of the front injection mechanism 221 corresponds to the pre-pouring passage. The front injection mechanism 221 and the pre-pouring passage have the same quantity, and both are formed in a one-to-one correspondence relationship. The nozzle 240 of the rear injection mechanism 222 corresponds to the post-pouring passage. The rear injection mechanism 222 and the post-pouring passage have the same quantity, and both are formed in a one-to-one correspondence relationship.

Since the front inner wall surface 113 and the rear inner wall surface 114 are arranged at intervals in the second direction, the front portion of the cavity 110 is arranged close to the front injection mechanism 221 in the second direction. Since the front part of the cavity 110 is an end portion near the front injection mechanism 221 and the rear part of the cavity 110 is arranged close to the rear injection mechanism 222, the rear part of the cavity 110 is placed in the rear injection mechanism 222. On the other hand, it becomes the near end part. In this way, the far end portion of the cavity 110 is removed in the second direction, the entire cavity 110 is filled with the molten metal in the second direction in a short time, and the die-cast part is formed quickly and accurately. Further, when a new filling space is formed in the peripheral portion of the cavity 110 due to the solidification of the molten metal and the contraction of the volume, the front portion of the new filling space is close to the front injection mechanism 221 and the new filling space is created. The rear portion is close to the rear injection mechanism 222. As a result, the molten metal of the front injection mechanism 221 is quickly filled in the front portion of the new filling space, and the molten metal of the rear injection mechanism 222 is quickly filled in the rear portion of the new filling space. Eventually, the molten metal is filled in different positions in the new filling space to realize "shrinkage compensation" and secure the structural strength of the die-cast parts.

When there are a plurality of front injection mechanisms 221 and rear injection mechanisms 222, the time for the cavity 110 to be filled with the molten metal is faster, and the time for the new filling space to be filled with the molten metal is also faster. It can be more efficient. In both the front injection mechanism 221 and the rear injection mechanism 222, the central axis of the injection passage 241 may be parallel to the second direction. Of course, in both the front injection mechanism 221 and the rear injection mechanism 222, the central axis of the injection passage 241 may form a predetermined angle with the second direction. That is, the central axis is arranged so as to be inclined with respect to the second direction by intersecting the second direction. Therefore, by changing the injection direction of the molten metal, the time for the cavity 110 and the new filling space to be filled with the molten metal can be improved to some extent.

In one embodiment, the cavity 110 is further bounded by an upper inner wall surface 115 and a lower inner wall surface 116. The upper inner wall surface 115 and the lower inner wall surface 116 may be flat or curved. The upper inner wall surface 115 and the lower inner wall surface 116 are arranged at intervals along the third direction (Z-axis direction). The upper inner wall surface 115 is connected between one end (front end) of the left inner wall surface 111 and the right inner wall surface 112. The lower inner wall surface 116 is connected between the left inner wall surface 111 and the other end (rear end) of the right inner wall surface 112. For example, since the third direction is the vertical direction, it is orthogonal to the first direction and the second direction. At this time, the first direction, the second direction, and the third direction all form the extending directions of the three coordinate axes of the spatial orthogonal coordinate system. The pouring passage 120 further includes an upper pouring passage and a lower pouring passage, and the upper pouring passage communicates with the outside, penetrates the upper inner wall surface 115, and communicates with the cavity 110. The lower pouring passage communicates with the outside, penetrates the lower inner wall surface 116, and communicates with the cavity 110. The injection mechanism 200 further includes an upper injection mechanism 231 and a lower injection mechanism 232. The nozzle 240 of the upper injection mechanism 231 corresponds to the upper pouring passage. The upper injection mechanism 231 and the upper pouring passage have the same quantity, and both are formed in a one-to-one correspondence relationship. The nozzle 240 of the lower injection mechanism 232 corresponds to the lower pouring passage. The lower injection mechanism 232 and the lower pouring passage have the same quantity, and both are formed in a one-to-one correspondence relationship.

Since the upper inner wall surface 115 and the lower inner wall surface 116 are arranged at intervals in the third direction, the upper portion of the cavity 110 is arranged close to the upper injection mechanism 231 in the third direction. Since the upper part of the cavity 110 is the end portion near the upper injection mechanism 231 and the lower part of the cavity 110 is arranged close to the lower injection mechanism 232, the lower part of the cavity 110 is arranged with respect to the lower injection mechanism 232. It becomes the near end part. In this way, the far end portion of the cavity 110 is removed in the third direction, the entire cavity 110 is filled with the molten metal in the third direction in a short time, and the die-cast part is formed quickly and accurately. Further, when a new filling space is formed in the peripheral portion of the cavity 110 due to the solidification of the molten metal and the contraction of the volume, the front portion of the new filling space becomes closer to the upper injection mechanism 231 and the new filling space is created. The lower part is closer to the lower injection mechanism 232. As a result, the molten metal of the upper injection mechanism 231 is quickly filled in the front part of the new filling space, and the molten metal of the lower injection mechanism 232 is quickly filled in the rear part of the new filling space. Eventually, the molten metal is filled in different positions in the new filling space to realize "shrinkage compensation" and secure the structural strength of the die-cast parts.

When there are a plurality of upper injection mechanisms 231 and lower injection mechanisms 232, the time for the cavity 110 to be filled with the molten metal is faster, and the time for the new filling space to be filled with the molten metal is also faster. Can be enhanced. In both the front injection mechanism 221 and the rear injection mechanism 222, the central axis of the injection passage 241 may be parallel to the third direction. Of course, in both the front injection mechanism 221 and the rear injection mechanism 222, the central axis of the injection passage 241 may form a predetermined angle with the third direction. That is, the central axis is arranged so as to be inclined with respect to the third direction by intersecting the third direction. Therefore, by changing the injection direction of the molten metal, the time for the cavity 110 and the new filling space to be filled with the molten metal can be improved to some extent.

Therefore, the injection mechanism 200 can inject the molten metal into the cavity 110 from the first direction, the second direction, and the third direction, thereby reducing the time for the cavity 110 and the new filling space to be filled with the molten metal, and the die casting component. Ensures that it is molded quickly and accurately and has sufficient structural strength.

See FIGS. 3, 4 and 5. The present invention provides a die casting method, which is realized by the above-mentioned die casting device 10 and mold 100. This die casting method mainly includes the following steps.

S310: A mold 100 provided with a cavity 110 is prepared. The mold 100 includes a fixed mold and a movable mold. The cavity 110 is formed by combining both the fixed mold and the movable mold.

S320: A plurality of injection mechanisms 200 are prepared, each injection mechanism 200 is provided with an injection passage 241 communicating with the cavity 110, and molten metal is injected into the cavity 110 from the injection passages 241 of at least two injection mechanisms 200 at different positions of the cavity 110. To do. With reference to the three coordinate axes of the spatial Cartesian coordinate system, the injection passage 241 may inject molten metal at different positions of the cavity 110 along the first direction (X-axis direction), and may inject molten metal in the second direction (Y-axis direction). And / or the molten metal may be injected into different positions of the cavity 110 along the third direction (Z-axis direction). As a result, the time for filling the cavity 110 and the new filling space with the molten metal is shortened, and it is possible to ensure that the die-cast part is formed quickly and accurately and has sufficient structural strength.

S330: The molten metal in the cavity 110 is cooled and molded. The molten metal may be naturally cooled together with the furnace, or may be cooled by water cooling or oil cooling.
In one embodiment, the injection passages 241 of all injection mechanisms 200 simultaneously inject molten metal into the cavity 110. Of course, the injection passages 241 of all the injection mechanisms 200 may inject the molten metal into the cavity 110 in chronological order.

The above embodiments merely show some embodiments of the present invention, the description of which has been made more specific and detailed, but should not be understood as limiting the scope of the utility model registration claims. .. It goes without saying that a person skilled in the art can make various changes, improvements, etc. without deviating from the idea of the present invention, and these also belong to the scope of the present invention. Therefore, the scope of protection of the present invention is defined by the scope of the attached utility model registration claims.

In one embodiment, the left injection mechanism and the right injection mechanism are both parallel to the central axis of the injection passage in the first direction, or the left injection mechanism and the right injection mechanism are either. Also, the central axis of the injection passage forms a predetermined angle with respect to the first direction.

In one embodiment, a part of the boundary of the cavity is further defined by the front inner wall surface and the rear inner wall surface of the mold, and the front inner wall surface and the rear inner wall surface are spaced apart from each other in the second direction. Arranged, the second direction is perpendicular to the first direction, the front inner wall surface is connected between one end of the left inner wall surface and the right inner wall surface, and the rear inner wall surface is connected. Is connected between the left inner wall surface and the other end of the right inner wall surface, and the pouring passage penetrates the front inner wall surface and the rear inner wall surface. Further including a rear pouring passage, the injection mechanism further includes a front injection mechanism and a rear injection mechanism, the nozzle of the front injection mechanism corresponds to the front pouring passage, and the rear injection mechanism. Nozzle corresponds to the rear pouring passage.

In one embodiment, a part of the boundary of the cavity is further defined by an upper inner wall surface and a lower inner wall surface of a mold, and the upper inner wall surface and the lower inner wall surface are arranged at intervals in a third direction. The third direction is perpendicular to both the first direction and the second direction, and the upper inner wall surface is connected between one end of the left inner wall surface and the right inner wall surface. The lower inner wall surface is connected between the left inner wall surface and the other end of the right inner wall surface, and the pouring passage is an upper pouring passage penetrating the upper inner wall surface and the lower inner wall surface. Further including a lower pouring passage penetrating the wall surface, the injection mechanism further includes an upper injection mechanism and a lower injection mechanism, the nozzle of the upper injection mechanism corresponds to the upper pouring passage, and the lower injection mechanism. Nozzle corresponds to the lower pouring passage.

Claims (10)

It is a die casting device that cooperates with a cavity and a mold provided with a plurality of pouring passages that are communicated with each other at different positions of the cavity.
Each of the injection mechanisms includes a plurality of injection mechanisms, each of which includes a nozzle corresponding to the pouring passage, and the nozzle is provided with an injection passage communicating with the cavity so as to inject molten metal into the cavity. A die casting device characterized by that. A part of the boundary of the cavity is defined by the left inner wall surface of the mold, the pouring passage includes a left pouring passage penetrating the left inner wall surface, and the injection mechanism is a left injection. Including the mechanism, the nozzle of the left injection mechanism corresponds to the left pouring passage, the left injection mechanism is one or more, and the number of the left pouring passages and the number of the left injection mechanisms. The die casting apparatus according to claim 1, wherein the two are equal to each other. A part of the cavity of the cavity is further defined by the right inner wall surface of the mold, the pouring passage includes a right pouring passage penetrating the right inner wall surface, and the injection mechanism is on the right. Including the injection mechanism, the nozzle of the right injection mechanism corresponds to the right pouring passage, the right injection mechanism is one or more, and the number of the right pouring passages and the right injection mechanism. The die casting apparatus according to claim 2, wherein the numbers are equal to each other. In both the left injection mechanism and the right injection mechanism, the central axis of the injection passage is parallel to the first direction, or the left injection mechanism and the right injection mechanism are both in the injection passage. The die casting device according to claim 3, wherein the central axis forms a predetermined angle with respect to the first direction. A part of the boundary of the cavity is further defined by the front inner wall surface and the rear inner wall surface of the mold, and the front inner wall surface and the rear inner wall surface are arranged at intervals in the second direction. The two directions are perpendicular to the first direction, the front inner wall surface is connected between one end of the left inner wall surface and the right inner wall surface, and the rear inner wall surface is the left inner wall surface. Connected between the inner wall surface and the other end of the right inner wall surface, the pouring passage is a front pouring passage penetrating the front inner wall surface and a rear pouring passage penetrating the rear inner wall surface. The injection mechanism further includes a front injection mechanism and a rear injection mechanism, the nozzle of the front injection mechanism corresponds to the front pouring passage, and the nozzle of the rear injection mechanism is. The die casting device according to claim 3, wherein the die casting device corresponds to the rear pouring passage. In both the front injection mechanism and the rear injection mechanism, the central axis of the injection passage is parallel to the second direction, or in both the front injection mechanism and the rear injection mechanism, the central axis of the injection passage is the said. The die casting device according to claim 5, wherein the die casting device forms a predetermined angle with respect to the second direction. The front injection mechanism and the rear injection mechanism are each one or more, the number of the front injection mechanism and the front pouring passage is equal, and the number of the rear injection mechanism and the rear pouring passage is the same. The die casting device according to claim 5, wherein they are equal. A part of the boundary of the cavity is further defined by an upper inner wall surface and a lower inner wall surface of the mold, and the upper inner wall surface and the lower inner wall surface are arranged at intervals in a third direction. The direction is perpendicular to both the first direction and the second direction, and the upper inner wall surface is connected between one end of the left inner wall surface and the right inner wall surface, and the lower inner wall surface is connected. The wall surface is connected between the left inner wall surface and the other end of the right inner wall surface, and the pouring passage penetrates the upper pouring passage penetrating the upper inner wall surface and the lower inner wall surface. Further including a lower pouring passage, the injection mechanism further includes an upper injection mechanism and a lower injection mechanism, the nozzle of the upper injection mechanism corresponds to the upper pouring passage, and the nozzle of the lower injection mechanism is said. The die casting device according to claim 5, wherein the die casting device corresponds to a lower pouring passage. In both the upper injection mechanism and the lower injection mechanism, the central axis of the injection passage is parallel to the third direction, or in both the upper injection mechanism and the lower injection mechanism, the central axis of the injection passage is the third. The die casting device according to claim 8, wherein the die casting device forms a predetermined angle with respect to a direction. The upper injection mechanism and the lower injection mechanism are each one or more, the number of the upper injection mechanism and the upper pouring passage is equal, and the number of the lower injection mechanism and the lower pouring passage are equal. The die casting device according to claim 8.

Images