CN218395816U - One-mold multi-part mold core structure for casting lock shell - Google Patents

Abstract

A be used for locking many formula mold core structures of cast one mould of shell will lock shell cavity symmetry setting, be convenient for set up a plurality of lock shell cavities and promote production efficiency. And the handle cavity is arranged at the edge of the whole die cavity, namely, parting designs are arranged on two sides of the die cavity, the handle cavity and the through hole cavity are formed by matching the core devices on two sides, and the barrel cavity is mainly formed by matching the front and back cavities of the male die and the female die. And convex parts and concave parts are correspondingly arranged in the middle areas of the male die and the female die, the die cavity is integrally arranged in the convex parts and the concave parts, and the spaces at two sides of the convex parts and the concave parts are reserved with core inserts at two sides. The flow channel design scheme is as follows: the injection material enters the die cavity from the sprue bush, flows to the sprue spreader, the main runner cavity and the sprue spreader, enters the lock shell cavities on two sides, flows to the handle cavity from the cylinder cavity after entering the lock shell cavities, and is molded simultaneously with the handle cavity after penetrating the hole cavity. The die has the advantages of reasonable die cavity design and parting design, good forming effect and high casting production efficiency.

Description

One-mold multi-part mold core structure for casting lock shell

Technical Field

The utility model relates to an advanced manufacturing and automation field, concretely relates to be used for many formula mold core structures of cast one mould of lock shell.

Background

The casting mould is used for forming a casting in a casting forming process, in order to obtain the structural shape of a part, other easily-formed materials are made into the structural shape of the part in advance, then the part is placed into a sand mould, a cavity with the same size as the structural size of the part is formed in the sand mould, then a fluid liquid is poured into the cavity, and the liquid is cooled and solidified to form the part with the same shape and structure as the mould. For the machining and forming of some small special-shaped parts, casting molds are widely applied, such as the machining of lock cases. Because lock shell volume is less, and inner structure is more complicated, and is higher to the size precision requirement moreover, so generally adopt the casting mode to cast the shaping.

The lock case 9 to be cast according to the present invention is shown in fig. 1, and includes a cylindrical portion 91, a shank portion 92 is provided on one side of the cylindrical portion 91, a set of through holes 93 are provided on the shank portion 92, and the set of through holes 93 penetrate through the inner wall of the cylindrical portion 91 from the outside of the shank portion 92. It can be seen that the lock shell 9 has a complex overall structure, needs to be designed in a parting manner in multiple directions, and also has the casting efficiency, so that a plurality of products can be cast at one time.

SUMMERY OF THE UTILITY MODEL

For overcoming the not enough of above-mentioned prior art, the utility model provides a many formula mold core structures of a mould for locking shell casting has die cavity design, parting reasonable in design, and the shaping is effectual, advantage that casting production efficiency is high.

In order to achieve the above purpose, the present invention is realized by the following technical solution: a one-mold multi-piece mold core construction for casting a lock shell comprising: the male die and the female die are mutually spliced to form a die cavity, a sprue bush is arranged on the male die, a sprue spreader is arranged on the corresponding female die, and a sprue bush perforation and a sprue spreader runner are connected with the die cavity; the die cavity is arranged in a mirror symmetry mode and comprises a set of lock shell cavities which are symmetrically arranged, the lock shell cavities comprise cylinder cavities corresponding to the lock shell structure, the edge of the cylinder cavity, close to the die cavity, is provided with a handle cavity, the handle cavity is provided with a set of through hole cavities, and the through hole cavities penetrate from the outer side of the handle cavity to the inner side of the cylinder cavity; the die cavity further comprises a main runner cavity and a group of branch runner cavities, the main runner cavity extends from the branch cones and penetrates through a lock shell cavity middle shaft arranged in a mirror image mode, and the branch runner cavities are connected with the lock shell cavity and the main runner cavity; the middle of one side of the male die, which is close to the female die, is provided with a convex part, the middle of one side of the corresponding female die, which is close to the male die, is provided with a concave part, and the die cavity is integrally arranged on the convex part and the concave part.

Based on the structure, the key of the mold design lies in the modeling of the mold cavity, the arrangement of the position distribution of each mold cavity and the design of the parting mode. A many formula mold core structures of a mould for locking shell casting will lock shell cavity symmetry setting, be convenient for set up a plurality of lock shell cavities and promote production efficiency. And the handle cavity is arranged at the edge of the whole die cavity, namely, parting designs are arranged on two sides of the die cavity, the handle cavity and the through hole cavity are formed by matching the core devices on two sides, and the barrel cavity is mainly formed by matching the front and back cavities of the male die and the female die. In addition, because the matching of the core devices at two sides is needed, the space of the inserts at two sides is needed to be reserved, so that a convex part and a concave part are correspondingly arranged in the middle areas of the male die and the female die, the die cavity is integrally arranged in the convex part and the concave part, and the core inserts at two sides are reserved in the space at two sides of the convex part and the concave part. The flow channel design scheme is as follows: the injection material enters the die cavity from the sprue bush, flows to the sprue spreader, the main runner cavity and the sprue spreader, enters the lock shell cavities on two sides, flows to the handle cavity from the cylinder cavity after entering the lock shell cavities, and is molded simultaneously with the handle cavity after penetrating the hole cavity. Therefore, the utility model has the advantages of die cavity design, typing reasonable in design, the shaping is effectual, and casting production efficiency is high.

Further, the one-mould multi-piece mould core structure for casting the lock shell is characterized in that a group of first cavity parts are arranged on the convex part, and the first cavity parts correspond to the outer side surface and the top surface outline of the cylinder cavity.

Further, the mold core structure for casting the lock shell comprises a mold core structure, wherein the mold core structure comprises a main runner cavity and a sub-runner cavity, and the main runner cavity and the sub-runner cavity are arranged on the concave part.

Further, according to the one-mold multi-piece mold core structure for casting the lock shell, the female mold is provided with a set of core columns in a penetrating mode from the bottom, each core column comprises an installation portion and a core portion, the installation portions are sleeved on corresponding through holes of the female mold, the core portions penetrate out of the surfaces of the concave portions, and the core portions correspond to the inner side surface profile of the cylinder cavity. Therefore, the forming of the inner side surface of the cylinder cavity is completed by using the group of core columns as the plug-in units, the structure of the female die is simplified, the complexity of the manufacturing process of the female die is reduced, and the processing cost is saved.

Furthermore, the mold core structure comprises a plurality of mold core parts, wherein the mold core parts are arranged on two sides of the female mold, the mold core parts are respectively provided with a group of insert parts, the insert parts are inserted into the corresponding insert grooves from the side surfaces of the female mold, the insert grooves extend towards the concave part direction and are provided with second cavity parts, and the surfaces of the insert parts close to the concave part and the second cavity parts correspond to the outer contours of the handle cavity. Wherein the insert is the two-sided core insert described above.

Furthermore, the mold core structure comprises a plurality of mold cores, wherein the mold cores are arranged on the mold core, the mold cores are provided with a plurality of insertion pins, the insertion pins penetrate out from one side surface of the concave part of the insertion part and are attached to the mold core, and the insertion pins correspond to the shapes of the through holes. The contact pin is combined on the plug-in unit, so that the parting operation can be completed at one time, and the production efficiency is improved.

Furthermore, the mold core structure with one mold and multiple parts for casting the lock shell is characterized in that the male mold is provided with a group of groove parts corresponding to the inserting grooves. Thus, the groove portion and the insertion groove form a cavity portion corresponding to the insert.

Furthermore, the mold core structure with multiple molds for casting the lock shell is characterized in that a group of positioning convex parts are arranged at four corners of the male mold, and a group of positioning concave parts are arranged at four corresponding corners of the female mold. The male die and the female die are positioned and registered through the positioning convex part and the positioning concave part, so that the positioning precision is ensured, and the product quality is ensured.

Furthermore, a set of first thimble holes are arranged on the master die in a penetrating mode at the position of the main runner cavity. The first thimble holes are arranged on the mould and used for using thimbles to complete demoulding, the first thimble holes are arranged on the position of the main runner cavity, namely the position of the middle shaft of the whole mould cavity, so that the balance of integral lifting during demoulding can be ensured, and casting marks of the thimble holes can not be formed on a product.

Furthermore, a set of second thimble holes are arranged on the female die at the position of the second cavity part in a penetrating manner. Therefore, the ejector pins are conveniently arranged on the two sides of the die cavity, and the ejection and demolding stability of the ejector pins is guaranteed.

Above-mentioned technical scheme can find out, the utility model discloses following beneficial effect has:

1. the utility model provides a be used for many formula mold core structures of a mould of lock shell casting, a be used for many formula mold core structures of a mould of lock shell casting will lock the shell chamber symmetry setting, be convenient for set up a plurality of lock shell chamber and promote production efficiency. And the handle cavity is arranged at the edge of the whole die cavity, namely, parting designs are arranged on two sides of the die cavity, the handle cavity and the through hole cavity are formed by matching the core devices on two sides, and the barrel cavity is mainly formed by matching the front and back cavities of the male die and the female die. In addition, because the matching of the core devices at two sides is needed, the space of the inserts at two sides is needed to be reserved, so that a convex part and a concave part are correspondingly arranged in the middle areas of the male die and the female die, the die cavity is integrally arranged in the convex part and the concave part, and the core inserts at two sides are reserved in the space at two sides of the convex part and the concave part. The flow channel design scheme is as follows: the injection material enters the die cavity from the sprue bush, flows to the sprue spreader, the main runner cavity and the sprue spreader, enters the lock shell cavities on two sides, flows to the handle cavity from the cylinder cavity after entering the lock shell cavities, and is molded simultaneously with the handle cavity after penetrating the hole cavity. Therefore, the utility model has the advantages of die cavity design, parting reasonable in design, the shaping is effectual, and casting production efficiency is high.

2. The utility model provides a be used for many formula mold core structures of cast one mould of lock shell uses a set of stem to accomplish the shaping to the barrel cavity medial surface as plug-in components, has simplified the structure of master model, has reduced the complexity of master model manufacturing process, has practiced thrift the processing cost.

3. The utility model provides a be used for many formula mold core structures of cast one mould of lock shell, with the contact pin combination on the plug-in components, be convenient for once accomplish the parting operation, promote production efficiency.

Drawings

Fig. 1 is a schematic three-dimensional structure of a lock case to be cast by using a one-mold multi-piece mold core structure for casting the lock case according to the present invention;

fig. 2 is an exploded view of a three-dimensional part of a mold core structure for casting a lock case according to the present invention;

fig. 3 is a schematic three-dimensional structure of a mold cavity (i.e., a mold release shape) of a one-mold multi-piece mold core structure for casting a lock case according to the present invention;

fig. 4 is a schematic three-dimensional structure of a male mold of a one-mold multi-piece mold core structure for casting a lock case according to the present invention;

fig. 5 is a schematic three-dimensional structure of a master die after each insert is mounted in a one-die multi-piece type die core structure for casting a lock shell according to the present invention;

fig. 6 is a schematic view of the female mold plane structure of the multi-piece mold core structure for casting the lock case of the present invention.

In the figure: 1-male die; 11-a sprue bush; 12-a convex part; 13-a first cavity part; 14-a trough portion; 15-positioning the convex part; 2-a female die; 21-a splitter cone; 22-a recess; 23-perforating; 24-a slot; 25-a second cavity part; 26-a positioning recess; 27-a first thimble hole; 28-second thimble hole; 3-a mold cavity; 31-lock housing cavity; 311-barrel cavity; 312-a shank cavity; 313-a puncture cavity; 32-a primary channel chamber; 33-a shunt cavity; 4-core column; 41-a mounting portion; a 42-type core; 5-a plug-in; 51-pin; 9-a lock case; 91-a barrel portion; 92-a handle; 93-perforation.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

Examples

The one-mold multi-piece mold core structure for casting the lock shell shown in fig. 2-6 comprises a male mold 1 and a female mold 2, wherein the male mold 1 and the female mold 2 are spliced with each other to form a mold cavity 3, a sprue bush 11 is arranged on the male mold 1, a sprue spreader 21 is correspondingly arranged on the female mold 2, and a through hole of the sprue bush 11 and a runner of the sprue spreader 21 are connected with the mold cavity 3. The die cavity 3 is arranged in a mirror symmetry mode and comprises 8 lock shell cavities 31 which are symmetrically arranged, each lock shell cavity 31 comprises a cylinder cavity 311 corresponding to a lock shell structure, a handle cavity 312 is arranged on the side edge of the cylinder cavity 311 close to the die cavity 3, a group of through hole cavities 313 are arranged on the handle cavity 312, and the through hole cavities 313 penetrate through the inner side of the cylinder cavity 311 from the outer side of the handle cavity 312. The mold cavity 3 further includes a main runner cavity 32 and a set of branch runner cavities 33, the main runner cavity 32 extends from the branch cones 21 and penetrates through the central axis of the lock case cavity 31 arranged in a mirror image manner, and the branch runner cavities 33 connect the lock case cavity 31 and the main runner cavity 32. In addition, a convex part 12 is arranged in the middle of the male die 1 near the female die 2, a concave part 22 is arranged in the middle of the corresponding female die 2 near the male die 1, and the whole die cavity 3 is arranged on the convex part 12 and the concave part 22. Wherein the main runner chamber 32 and the branch runner chamber 33 are provided on the recess 22. And, a set of positioning convex parts 15 is arranged at four corners of the male mold 1, and a set of positioning concave parts 26 is arranged at four corners of the corresponding female mold 2.

Furthermore, a set of first cavity parts 13 is arranged on the convex part 12, and the first cavity parts 13 correspond to the outer side surface and the top surface contour of the cylinder cavity 311.

Furthermore, a set of core column 4 is arranged through the female die 2 from the bottom, the core column 4 includes a mounting portion 41 and a core portion 42, the mounting portion 41 is sleeved on the corresponding through hole 23 of the female die 2, the core portion 42 penetrates out from the surface of the concave portion 22, and the core portion 42 corresponds to the inner side surface profile of the barrel cavity 311. And, a set of inserts 5 is respectively arranged on both sides of the master model 2, the inserts 5 are inserted into the corresponding insertion grooves 24 from the side surface of the master model 2, the insertion grooves 24 are provided with second cavity parts 25 extending towards the direction of the concave part 22, and the surface of one side of the inserts 5 close to the concave part 22 and the second cavity parts 25 correspond to the outer contour of the handle cavity 312. The plug-in unit 5 is provided with a group of pins 51, the pins 51 penetrate out from the surface of the plug-in unit 5 on one side near the concave portion 22 and are attached to the core portion 42, and the pins 51 correspond to the shape of the through hole cavity 313. And, the male die 1 is provided with a group of slot parts 14 corresponding to the slot 24. In addition, a set of first pin-hole 27 is formed in the master model 2 at the position of the main channel chamber 32, and a set of second pin-hole 28 is formed in the position of the second chamber 25.

Based on above-mentioned structure, a be used for locking many formula mold core structures of cast one mould of shell will lock shell cavity 31 symmetry setting, be convenient for set up a plurality of lock shell cavities 31 and promote production efficiency. The stem cavity 312 is provided at the edge of the entire cavity 3, that is, a parting design is provided on both sides of the cavity 3, the stem cavity 312 and the piercing cavity 313 are formed by fitting core means on both sides, and the barrel cavity 311 is formed by fitting the front and rear cavities of the male mold 1 and the female mold 2. In addition, since the core devices on both sides need to be matched, and therefore, the space for the insert on both sides needs to be reserved, the convex portion 12 and the concave portion 22 are correspondingly arranged in the middle area of the male die 1 and the female die 2, the cavity 3 is integrally arranged in the convex portion 12 and the concave portion 22, and the space for the insert on both sides is reserved. The flow channel design scheme comprises the following steps: the injection material enters the die cavity 3 from the sprue bush 11, flows to the sprue runner 21, the main runner cavity 32, the sprue runner cavity 33, then enters the lock shell cavities 31 on both sides, finally flows to the shank cavity 312 from the cylinder cavity 311 after entering the lock shell cavities 31, and is simultaneously formed with the shank cavity 312 through the hole cavity 313. Therefore, the utility model has the advantages of die cavity design, parting reasonable in design, the shaping is effectual, and casting production efficiency is high.

In addition, the group of core columns 4 are used as plug-in units to complete the molding of the inner side surface of the cylinder cavity 311, so that the structure of the female die 2 is simplified, the complexity of the manufacturing process of the female die 2 is reduced, and the processing cost is saved. And, the contact pin 51 is combined on the plug-in unit 5, so that the parting operation can be completed at one time, and the production efficiency is improved. Wherein the groove portion 14 and the insertion groove 24 form a cavity portion corresponding to the card 5. The male die 1 and the female die 2 are positioned and registered through the positioning convex part 15 and the positioning concave part 26, so that the positioning precision is ensured, and the product quality is ensured. In addition, the thimble holes are arranged for completing demoulding by using thimbles on the mould, and the first thimble holes 27 are arranged at the position of the main runner cavity 32, namely the position of the central axis of the whole mould cavity 3, so that the balance of integral lifting during demoulding can be ensured, and casting marks of the thimble holes cannot be formed on a product. And the second thimble holes 28 are convenient for arranging thimbles at two sides of the die cavity 3, so that the ejection and demoulding stability of the thimbles is further ensured.

The technical principles of the present invention have been described above in connection with specific embodiments, which are intended to explain the principles of the invention and should not be interpreted as limiting the scope of the invention in any way. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.

Claims (10)

1. A one-die multi-piece type die core structure for casting a lock shell comprises a male die (1) and a female die (2), wherein the male die (1) and the female die (2) are mutually spliced to form a die cavity (3), a sprue bush (11) is arranged on the male die (1), a sprue spreader (21) is arranged on the corresponding female die (2), and the sprue bush (11) is perforated and a sprue spreader (21) runner are connected with the die cavity (3); the method is characterized in that: the die cavity (3) is arranged in a mirror symmetry mode and comprises a set of lock shell cavities (31) which are symmetrically arranged, the lock shell cavities (31) comprise cylinder cavities (311) corresponding to the lock shell structure, handle cavities (312) are arranged on the side edges, close to the die cavity (3), of the cylinder cavities (311), a set of through hole cavities (313) are arranged on the handle cavities (312), and the through hole cavities (313) penetrate through the inner sides of the cylinder cavities (311) from the outer sides of the handle cavities (312); the die cavity (3) further comprises a main runner cavity (32) and a group of branch runner cavities (33), the main runner cavity (32) extends from the branch cones (21) and penetrates through the middle shafts of the lock shell cavities (31) arranged in a mirror image mode, and the branch runner cavities (33) are connected with the lock shell cavities (31) and the main runner cavities (32); the male die is characterized in that a convex part (12) is arranged in the middle of one side, close to the female die (2), of the male die (1), a concave part (22) is arranged in the middle of one side, close to the male die (1), of the female die (2), and the die cavity (3) is integrally arranged on the convex part (12) and the concave part (22).

2. A one-mould multi-part core construction for casting a lock housing according to claim 1, wherein: a group of first cavity parts (13) are arranged on the convex part (12), and the first cavity parts (13) correspond to the outer side surface and the top surface contour of the barrel cavity (311).

3. A one-mould multi-part core construction for casting a lock housing according to claim 1, wherein: the main channel chamber (32) and the branch channel chamber (33) are arranged on the recess (22).

4. A one-mould multi-part core construction for casting a lock housing according to claim 1, wherein: the female die (2) is provided with a group of core columns (4) in a penetrating mode from the bottom, each core column (4) comprises an installation portion (41) and a core portion (42), the installation portions (41) are sleeved on the corresponding through holes (23) of the female die (2), the core portions (42) penetrate out of the surface of the concave portion (22), and the core portions (42) correspond to the inner side surface profile of the cylinder cavity (311).

5. A one-mould multi-part core construction for casting a lock housing according to claim 4, wherein: the two sides of the female die (2) are respectively provided with a group of plug-in components (5), the plug-in components (5) are inserted into corresponding insertion grooves (24) from the side faces of the female die (2), the insertion grooves (24) extend towards the direction of the concave portion (22) to form second cavity portions (25), and the surface of one side, close to the concave portion (22), of the plug-in components (5) and the second cavity portions (25) correspond to the outer contour of the handle cavity (312).

6. A one-mould multi-part core construction for casting a lock housing according to claim 5 wherein: the plug-in unit (5) is provided with a group of pins (51), the pins (51) penetrate out from the surface of one side of the plug-in unit (5) close to the concave part (22) and are attached to the core part (42), and the pins (51) correspond to the shape of the through hole cavity (313).

7. A one-mould multi-part core construction for casting lock housings according to claim 5, characterised in that: the male die (1) is provided with a group of groove parts (14) corresponding to the slots (24).

8. A one-mould multi-part core construction for casting a lock housing according to claim 1, wherein: a group of positioning convex parts (15) are arranged at four corners of the male die (1), and a group of positioning concave parts (26) are arranged at four corners of the corresponding female die (2).

9. A one-mould multi-part core construction for casting a lock housing according to claim 3 wherein: a group of first thimble holes (27) are arranged on the master mold (2) at the positions of the main runner cavities (32).

10. A one-mould multi-part core construction for casting a lock housing according to claim 5 wherein: a group of second thimble holes (28) are arranged on the female die (2) at the position of the second cavity part (25).

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