CN215697865U

CN215697865U - Die-casting die

Info

Publication number: CN215697865U
Application number: CN202121483038.0U
Authority: CN
Inventors: 邝永扬
Original assignee: Kaiping Lianyang Bathroom Fitting Co ltd
Current assignee: Kaiping Lianyang Bathroom Fitting Co ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2022-02-01
Anticipated expiration: 2031-06-30

Abstract

The utility model discloses a die-casting die, which comprises a lower die, an upper die and a sliding block, wherein the lower die is provided with a lower die cavity; the upper die is detachably connected with the lower die, a die cavity is formed between the lower die and the upper die, the die cavity comprises a main cavity and side cavities, the main cavity is horizontally arranged, the side cavities are vertically arranged, the upper die is provided with a pouring gate, and the pouring gate is communicated with the main cavity; wherein, the lower die is provided with a chute which is communicated with the side cavity; the slider slidable mounting is in the spout, and the spout can be sealed to the slider, and the slip direction of slider sets up along the horizontal direction, and one side that the slider was towards the side cavity is provided with a plurality of lugs, lug butt in the chamber wall of side cavity. The sliding block with the convex block is arranged on one side of the side cavity, so that parts with through holes and with central axes of the through holes inconsistent with the mold stripping direction can be conveniently die-cast, the production process is simplified, and the through holes are accurate in position.

Description

Die-casting die

Technical Field

The utility model relates to the technical field of dies, in particular to a die-casting die.

Background

With the continuous development of economy and the continuous improvement of living water of people, various material consumption products are provided for the life of people, thereby enriching the living standard of people. The common alloy parts in our daily life are usually die-cast and molded by using a die-casting die, and for producing parts with through holes and with central axes of the through holes inconsistent with the demolding direction, punching operation is usually required after die-casting molding, the process is complex, the punching positions are possibly deviated, and subsequent installation operation is inconvenient.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides the die-casting die which is convenient for die-casting the part which is provided with the through hole and the central shaft of the through hole is not consistent with the die-stripping direction.

According to an embodiment of the present invention, a die casting mold includes: a lower die; the upper die is detachably connected with the lower die, a die cavity is formed between the lower die and the upper die, the die cavity comprises a main cavity and side cavities, the main cavity is horizontally arranged, the side cavities are vertically arranged, the upper die is provided with a pouring gate, and the pouring gate is communicated with the main cavity; the lower die is provided with a sliding groove which is communicated with the side cavity; the sliding block is slidably mounted in the sliding groove and can seal the sliding groove, the sliding direction of the sliding block is arranged along the horizontal direction, a plurality of convex blocks are arranged on one side, facing the side cavity, of the sliding block, and the convex blocks are abutted to the wall of the side cavity.

The technical scheme at least has the following beneficial effects: through set up the slider in one side of side cavity, and the slider sets up a plurality of lugs towards one side of side cavity, during the pouring, it makes the lug butt in the chamber wall of side cavity to remove the slider, thereby form the through-hole that matches with the appearance of lug in the position of lug on the foundry goods, during the drawing of patterns, remove mould and slider, can upwards take out the foundry goods, thereby obtain the center pin that has through-hole and the inconsistent part of demolding direction, the drawing of patterns mode is simple, need not to punch the foundry goods after the die-casting shaping again and operate, the production technology is simplified, and the through-hole position is accurate, be favorable to improving the production quality of part.

According to some embodiments of the utility model, the bottom wall of the chute is provided with a number of recesses for storing lubricating grease.

According to some embodiments of the present invention, the lower mold is provided with a pouring system, the pouring system includes a main runner, a first branch runner and a second branch runner, one end of the main runner is connected to the pouring gate, the other end of the main runner is connected to the first branch runner and the second branch runner, the first branch runner and the second branch runner respectively extend to two sides of the main runner, and the first branch runner and the second branch runner are both communicated with the main chamber.

According to some embodiments of the utility model, an end of the main flow channel connecting the pouring gate is provided with a feed cavity having an inner diameter larger than a width of the main flow channel.

According to some embodiments of the present invention, the lower mold is provided with a diverting block located at the main flow passage, and the diverting block is located at a connection of the main flow passage and the first diverting flow passage.

According to some embodiments of the present invention, the diverting block includes inclined surfaces symmetrically disposed at both sides of the diverting block, one end of each of the two inclined surfaces is connected to form a tip portion facing the main flow passage, and the two inclined surfaces are respectively disposed to be inclined toward the first diverting flow passage and the second diverting flow passage.

According to some embodiments of the present invention, one of the lower die and the upper die is provided with a positioning convex portion, and the other is provided with a positioning concave portion which is fitted with the positioning convex portion.

According to some embodiments of the utility model, a side wall of the positioning convex portion is provided as a first guide wall, and an inner side wall of the positioning concave portion is provided as a second guide wall that is engaged with the first guide wall.

According to some embodiments of the utility model, one of the lower die and the upper die is provided with at least three positioning convex portions, the three positioning convex portions are arranged at intervals along the periphery of the main cavity, and the other positioning convex portion is provided with the positioning concave portion matched with the positioning convex portions, and the positioning concave portions and the positioning convex portions are in one-to-one correspondence.

According to some embodiments of the utility model, the lower mold is provided with a plurality of thimble holes, the thimble holes are arranged in a vertical direction, the plurality of thimble holes communicate with the main chamber, and the plurality of thimble holes are arranged at intervals.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural diagram of a die casting mold in an embodiment of the utility model;

FIG. 2 is a front cross-sectional view of a die casting mold in an embodiment of the utility model;

FIG. 3 is an exploded view of a die casting mold in accordance with an embodiment of the present invention;

FIG. 4 is a top view of a lower die in an embodiment of the present invention;

FIG. 5 is an enlarged view of A in FIG. 4;

FIG. 6 is a bottom view of the upper mold in an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a slider according to an embodiment of the present invention;

fig. 8 is a schematic use view of the die casting mold in cooperation with the top block in the embodiment of the utility model.

Reference numerals:

a lower die 100; a mold cavity 110; a main chamber 111; a side chamber 112; a chute 120; a recessed portion 121; a gating system 130; a main flow passage 131; a first subchannel 132; a second subchannel 133; a feed chamber 134; a diverter block 135; a bevel 1351; a tip portion 1352; a positioning boss 140; the first guide wall 141; a thimble hole 150;

an upper die 200; a gate 210; a positioning recess 220; the second guide wall 221;

a slider 300; a bump 310;

a top block 400; a top pillar 410.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1 to 3 in combination with fig. 7, an embodiment of the present invention provides a die casting mold, including a lower mold 100, an upper mold 200 and a slider 300, wherein the upper mold 200 is detachably connected to the lower mold 100, for example, the upper mold 200 directly covers the lower mold 100, a mold cavity 110 is formed between the lower mold 100 and the upper mold 200, a casting can be formed in the mold cavity 110 when the lower mold 100 is connected to the upper mold 200, and the mold cavity 110 can be opened when the lower mold 100 is separated from the upper mold 200, so that the casting can be demolded; the mold cavity 110 includes a main cavity 111 arranged horizontally and a side cavity 112 arranged vertically, the side cavity 112 is communicated with the main cavity 111, the upper mold 200 is provided with a pouring gate 210, a central axis of the pouring gate 210 is arranged vertically, the pouring gate 210 is communicated with the main cavity 111, the lower mold 100 is provided with a sliding chute 120, the sliding chute 120 is communicated with the side cavity 112, the sliding chute 120 is arranged horizontally, the sliding block 300 is slidably mounted on the sliding chute 120 horizontally, and a cross section perpendicular to the sliding direction in the sliding block 300 is matched with a cross section perpendicular to the sliding direction in the sliding chute 120, i.e. the sliding block 300 can seal the sliding chute 120, one side of the sliding block 300 facing the side cavity 112 is provided with a plurality of bumps 310, the number of the bumps 310 is set according to actual production requirements, specifically, three bumps 310 are provided, the bumps 310 are arranged at intervals, the cross sections of the bumps 310 can be provided with an ellipse, an oval shape, a round shape or other shapes, during casting, the projection 310 abuts against the wall of the side cavity 112, and the sliding block 300 can be fixed in the sliding groove 120 by a screw (not shown) or other fastening members, or the sliding block 300 can be directly pressed, so that the casting obtains a through hole matching with the shape of the projection 310.

In particular, when the sliding block 300 is moved toward the side chamber 112, the protrusion 310 is abutted against the wall of the side chamber 112, and the slide 300 is pressed, and the upper mold 200 is coupled to the upper side of the lower mold 100, to cover the cavity 110, the molten metal is poured into the mold cavity 110 at the gate 210 and fills the mold cavity 110, and after the molten metal has cooled, i.e., a casting is formed, and a through-hole is formed in the casting at the location of the bump 310, matching the profile of the bump 310, removed from the upper die 200, and moves the slider 300 in a direction away from the side chamber 112, so that the slider 300 is separated from the casting, the casting can be upwards taken out to realize demoulding, so that the part with the through hole and the central shaft of the through hole, which is inconsistent with the demoulding direction, is obtained, the demoulding mode is simple, the casting does not need to be punched after the casting is formed by die casting, the production process is simplified, the position of the through hole is accurate, and the improvement of the production quality of the part is facilitated.

Referring to fig. 3 and 4, it can be understood that the bottom wall of the sliding groove 120 is provided with a plurality of recesses 121, the recesses 121 are used for storing lubricating grease, and the bottom end surface of the slider 300 can contact the lubricating grease, so that the slider 300 can move smoothly all the time, and is convenient to use.

Referring to fig. 4 and 5, it can be understood that the lower mold 100 is provided with a gating system 130, the gating system 130 includes a main runner 131, a first branch runner 132 and a second branch runner 133, one end of the main runner 131 is connected to the gate 210, and the other end is connected to the first branch runner 132 and the second branch runner 133, the first branch runner 132 and the second branch runner 133 respectively extend to two sides of the main runner 131, and the first branch runner 132 and the second branch runner 133 are both communicated with the main chamber 111, so that the molten metal can flow to two sides of the main chamber 111, the molten metal can rapidly and uniformly fill the mold cavity 110, the die casting efficiency is improved, the castings are prevented from forming empty drums, and the production quality of the castings is effectively improved.

Referring to fig. 5, it can be understood that the end of the main flow channel 131 connected to the pouring gate 210 is provided with the feeding cavity 134, the inner diameter of the feeding cavity 134 is larger than the width of the main flow channel 131, and since the junction of the pouring gate 210 and the main flow channel 131 is a turning position, the storage amount of the feeding cavity 134 with the larger inner diameter is larger than the throughput of the main flow channel 131 during feeding, thereby facilitating the molten metal to flow into the main flow channel 131, so that the molten metal rapidly enters the mold cavity 110.

Referring to fig. 5, it can be understood that the lower mold 100 is provided with a diverting block 135 located at the main runner 131, the diverting block 135 is located at the junction where the main runner 131 connects the first diverting runner 132 and the second diverting runner 133, and the diverting block 135 can divert the molten metal to the first diverting runner 132 and the second diverting runner 133, so that the molten metal can rapidly and uniformly fill the mold cavity 110; specifically, the flow dividing block 135 includes inclined surfaces 1351 symmetrically disposed on both sides of the flow dividing block 135, one ends of the two inclined surfaces 1351 are connected to form a tip portion 1352, the tip portion 1352 faces the main flow channel 131, the two inclined surfaces 1351 are respectively disposed obliquely to the first flow dividing channel 132 and the second flow dividing channel 133, and the tip portion 1352 divides the molten metal into two parts and respectively enters the first flow dividing channel 132 and the second flow dividing channel 133 along the inclined surfaces 1351, so that resistance when the molten metal enters the first flow dividing channel 132 and the second flow dividing channel 133 is reduced, and die casting efficiency is effectively improved.

Referring to fig. 3 and 6, it can be understood that one of the lower mold 100 and the upper mold 200 is provided with a positioning protrusion 140, and the other is provided with a positioning recess 220 engaged with the positioning protrusion 140, and specifically, the upper end surface of the lower mold 100 is provided with a positioning protrusion 140, and the lower end surface of the upper mold 200 is provided with a positioning recess 220 engaged with the positioning protrusion 140, so as to facilitate positioning between the upper mold 200 and the lower mold 100 to form the set mold cavity 110, and to accurately align the gate 210 with the main runner 131 of the gating system 130.

Referring to fig. 3 and 6, it can be understood that the sidewall of the positioning protrusion 140 is provided as the first guide wall 141 and the first guide wall 141 is located at a side toward the main chamber 111, the inner sidewall of the positioning recess 220 is provided as the second guide wall 221 cooperating with the first guide wall 141, and the first guide wall 141 and the second guide wall 221 may be a slope structure or a curved structure so that the upper mold 200 and the lower mold 100 are positioned to cooperate.

Referring to fig. 3 and 6, it can be understood that one of the lower mold 100 and the upper mold 200 is provided with at least three positioning protrusions 140, the three positioning protrusions 140 are arranged at intervals along the outer periphery of the main cavity 111, the other is provided with positioning recesses 220 fitted with the positioning protrusions 140, the positioning recesses 220 correspond to the positioning protrusions 140 one-to-one, specifically, the positioning protrusions 140 may be in the shape of a long strip, a square block, or the like, the shape of the positioning recesses 220 matches the shape of the positioning protrusions 140, the three positioning protrusions 140 in the lower mold 100 are arranged at intervals and are located at the outer periphery of the main cavity 111, the outer side surface of the positioning convex part 140 is flush with the side surface of the lower die 100, the position of the positioning concave part 220 corresponds to the position of the positioning convex part 140, the upper mold 200 and the lower mold 100 are thus positioned in the circumferential direction to form the set mold cavity 110 and to accurately align the sprue gate 210 with the sprue channel 131 of the gating system 130.

Referring to fig. 8, it can be understood that the lower mold 100 is provided with a plurality of thimble holes 150, the thimble holes 150 penetrate through the lower mold 100, the thimble holes 150 are arranged along the vertical direction, the thimble holes 150 are communicated with the main chamber 111, and the thimble holes 150 are arranged at intervals, generally speaking, the thimble holes 150 are located around the main chamber 111, the mold is used with the ejector block 400 during specific use, the upper end of the ejector block 400 is provided with the ejector columns 410 matched with the thimble holes 150, the ejector columns 410 are in one-to-one correspondence with the thimble holes 150, and the lengths of the ejector columns 410 are greater than the height of the thimble holes 150, during pouring, the ejector columns 410 are inserted into the thimble holes 150, the upper end surfaces of the ejector columns 410 are flush with the bottom wall of the main chamber 111, after a casting is cooled and formed, the upper mold 200 and the sliding blocks 300 are removed, the ejector blocks 400 are moved upwards, the ejector columns 410 penetrate through the thimble holes 150, and the casting is ejected upwards, so that the casting is demoulded and the production is facilitated.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. A die casting mold, comprising:

a lower die;

the upper die is detachably connected with the lower die, a die cavity is formed between the lower die and the upper die, the die cavity comprises a main cavity and side cavities, the main cavity is horizontally arranged, the side cavities are vertically arranged, the upper die is provided with a pouring gate, and the pouring gate is communicated with the main cavity;

the lower die is provided with a sliding groove which is communicated with the side cavity;

the sliding block is slidably mounted in the sliding groove and can seal the sliding groove, the sliding direction of the sliding block is arranged along the horizontal direction, a plurality of convex blocks are arranged on one side, facing the side cavity, of the sliding block, and the convex blocks are abutted to the wall of the side cavity.

2. A die casting mold as claimed in claim 1, wherein: the bottom wall of spout is provided with a plurality of concave position, a plurality of the concave position is used for depositing lubricating grease.

3. A die casting mold as claimed in claim 1, wherein: the lower die is provided with a pouring system, the pouring system comprises a main runner, a first branch runner and a second branch runner, one end of the main runner is connected with the pouring gate, the other end of the main runner is connected with the first branch runner and the second branch runner, the first branch runner and the second branch runner extend to two sides of the main runner respectively, and the first branch runner and the second branch runner are communicated with the main cavity.

4. A die casting mold as claimed in claim 3, wherein: and a feeding cavity is arranged at one end of the main runner connected with the pouring gate, and the inner diameter of the feeding cavity is larger than the width of the main runner.

5. A die casting mold as claimed in claim 3 or 4, wherein: the lower mould is provided with and is located the reposition of redundant personnel piece of sprue, the reposition of redundant personnel piece is located the sprue is connected first reposition of redundant personnel runner the junction of second reposition of redundant personnel runner.

6. A die casting mold as claimed in claim 5, wherein: the flow distribution block comprises inclined planes which are symmetrically arranged on two sides of the flow distribution block, one end of each inclined plane is connected with one end of each sharp point, the sharp points face the main runner, and the inclined planes are respectively inclined towards the first branch runner and the second branch runner.

7. A die casting mold as claimed in claim 1, wherein: one of the lower die and the upper die is provided with a positioning convex part, and the other one of the lower die and the upper die is provided with a positioning concave part matched with the positioning convex part.

8. A die casting mold as claimed in claim 7, wherein: the side wall of the positioning convex part is set as a first guide wall, and the inner side wall of the positioning concave part is set as a second guide wall matched with the first guide wall.

9. A die casting mold as claimed in claim 7 or 8, wherein: one of the lower die and the upper die is provided with at least three positioning convex parts, the three positioning convex parts are arranged at intervals along the periphery of the main cavity, the other positioning convex part is provided with positioning concave parts matched with the positioning convex parts, and the positioning concave parts correspond to the positioning convex parts one to one.

10. A die casting mold as claimed in claim 1, wherein: the lower mould is provided with a plurality of thimble holes, the thimble hole sets up along vertical direction, and is a plurality of the thimble hole intercommunication main cavity, and it is a plurality of the thimble hole interval arrangement.