Straight sleeve die-casting die

Abstract

The utility model discloses a straight sleeve die-casting die, and relates to the field of dies, the straight sleeve die-casting die comprises a sleeve die core, adjusting seats symmetrically arranged on two sides of the sleeve die core, and a casting die pouring gate arranged on the sleeve die core; a pair of sleeve grooves are formed in the sleeve mold core, and the casting mold pouring gate is arranged between the sleeve grooves; mold rods matched with the straight sleeves are arranged on the symmetrically arranged adjusting seats, and the mold rods are inserted into the grooves of the sleeves; a pouring gate inlet of the casting mold pouring gate is located in the center of the sleeve mold core and extends in the sleeve end direction of the two sleeve grooves from the center of the mold core to form an arc-shaped pouring gate introduction section, and zinc alloy liquid is poured into the sleeve grooves from the sleeve end of the straight sleeve.

Description

Technical Field

[0001] The present application relates to the field of molds, and in particular to a straight sleeve die-casting mold. Background Art

[0002] In optoelectronic zinc alloy die-casting products, due to the special sleeve structure of the straight sleeve, the mold is usually double-station synchronous, that is, a pair of straight sleeve parts are cast at one time, but the metal straight sleeve has high requirements for the inner diameter size and cannot have defects such as scratches. In the traditional straight sleeve die-casting mold, the runner is directly cast into the mold groove. The zinc alloy liquid directly impacts the side wall and then diffuses and fills, which will cause product scratches and affect the quality of the product after demolding. Utility Model Content

[0003] The present application provides a box cover mold to solve the problem that zinc alloy liquid directly impacts the side wall of the mold, causing product damage and affecting the quality of the finished product. The mold includes a sleeve mold core, adjustment seats symmetrically arranged on both sides of the sleeve mold core, and a casting mold runner opened on the sleeve mold core;

[0004] A pair of sleeve grooves are provided on the sleeve mold core, and the casting mold runner is arranged between the sleeve grooves; a mold rod matching the straight sleeve is provided on the symmetrically arranged adjustment seat, and the mold rod is inserted into the sleeve groove;

[0005] The runner inlet of the casting mold runner is located at the center of the sleeve mold core, and extends from the mold core center along the barrel ends of the two sleeve grooves to form an arc runner introduction section, casting the zinc alloy liquid from the barrel end of the straight sleeve into the sleeve groove.

[0006] Specifically, the sleeve grooves formed on the sleeve mold core are parallel to each other, the sleeve ends are arranged in opposite directions, and the directions of casting to form the straight sleeve parts are opposite.

[0007] Specifically, the casting mold runner includes a vertical injection section, an arc runner introduction section and an annular introduction section;

[0008] The vertical injection section is located at the center of the mold core, the arc runner introduction section is connected to the root of the vertical injection section, and the annular introduction section is connected to the arc runner introduction section and is distributed around the barrel end of the sleeve groove.

[0009] Specifically, a conical ejector rod is provided from bottom to top in the center of the sleeve mold core to form the inner wall of the vertical injection section, and the zinc alloy liquid flows downward from the top of the conical ejector rod into the root and the arc runner introduction section.

[0010] Specifically, the first mold rod is inserted into the sleeve end of the sleeve groove, and the second mold rod is inserted into the top end of the sleeve groove; the first mold rod and the second mold rod are connected to the adjustment seat.

[0011] Specifically, the annular introduction section is sleeved on the first mold rod.

[0012] Specifically, the annular introduction section includes an annular runner and a plurality of pouring nozzles connected to the annular runner. The pouring nozzles are evenly distributed at the barrel end and inject zinc alloy liquid into the sleeve groove. The liquid flows along the barrel end of the sleeve groove to the top.

[0013] Specifically, a plurality of slag bags are distributed on the sleeve mold core, and the pouring nozzles of the slag bags are evenly distributed at the top positions of the sleeve grooves.

[0014] Specifically, the slag bag is distributed around the second mold rod.

[0015] Specifically, an inclined hole is opened on the adjustment seat, and an inclined guide column is passed through the inclined hole.

[0016] The beneficial effects brought about by the technical solution provided in the embodiment of the present application include at least: the casting mold runner is designed to extend from the center of the mold core along the barrel end direction of the two sleeve grooves to form an arc runner introduction section, so that the zinc alloy liquid can flow in from the arc bend formed between the arc runner introduction section and the annular introduction section to reduce the impact force, and finally injected from the annularly distributed pouring nozzle, flowing from the barrel end of the barrel groove to the top along the groove gap, fully filling the product without impacting the side wall of the product, the product will not be stretched, and the product is well formed, thereby improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a straight sleeve die-casting mold provided in an embodiment of the present application;

[0018] Figure 2 It is a schematic diagram of the structure of the sleeve groove and the conical ejector rod;

[0019] Figure 3 It is a schematic diagram of the structure of the mold rod and the runner;

[0020] Figure 4 It is a schematic diagram of a local explosion;

[0021] Figure 5 yes Figure 4 Enlarged view of point A in the middle.

[0022] Figure numerals: 1. sleeve mold core; 2. adjustment seat; 3. casting mold runner; 31. vertical injection section; 32. arc runner introduction section; 33. annular introduction section; 331. annular runner; 332. pouring nozzle; 4. straight sleeve; 5. mold rod; 51. first mold rod; 52. second mold rod; 6. inclined guide column; 7. inclined hole; 8. sleeve groove; 9. conical ejector rod; 10. slag bag. DETAILED DESCRIPTION

[0023] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0024] The term "multiple" as used herein refers to two or more than two. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the related objects are in an "or" relationship.

[0025] Figure 1 : is a schematic diagram of the structure of a straight sleeve die-casting mold provided in an embodiment of the present application, and the mold structure includes a sleeve mold core 1 and an adjustment seat 2, and the adjustment seat 2 is symmetrically arranged on both sides of the sleeve mold core 1. A pair of sleeve grooves 8 and a casting mold runner 3 are provided on the sleeve mold core 1, and the casting mold runner 3 is arranged between the sleeve grooves 8. A mold rod 5 matching the straight sleeve 4 is provided on the symmetrically arranged adjustment seat 2, and the mold rod 5 is inserted into the sleeve groove 8.

[0026] The sleeve mold core 1 can be designed as a rectangular structure, and the runner inlet of the casting mold runner 3 is located at the center of the sleeve mold core 1, and extends from the center of the mold core along the barrel end direction of the two sleeve grooves 8 to form an arc runner introduction section 32, and the zinc alloy liquid is cast from the barrel end of the straight sleeve 4 into the sleeve groove 8. Because the runner in the related art directly extends to the side wall direction of the two sleeve grooves 8, the side wall will be impacted during the casting process, which will affect the demoulding and tearing on one hand, and will also hinder the liquid flow rate and affect the casting effect.

[0027] See also Figure 2 The present embodiment improves the above by providing sleeve grooves 8 with opposite placement directions on the sleeve mold core 1, and keeping the sleeve grooves 8 parallel to each other as a whole, that is, the end of one straight sleeve 4 is in the same direction as the top of another straight sleeve 4. When designing the mold runner 3, the casting liquid flows from the end of the straight sleeve 4 part to the top along the arc runner. In other words, the two sleeve grooves 8 cast the straight sleeve 4 parts in opposite directions.

[0028] See also Figure 3 In this embodiment, the casting mold runner 3 is designed as a three-section structure including a vertical injection section 31, an arc runner introduction section 32 and an annular introduction section 33. The vertical injection section 31 is located at the center of the mold core, the arc runner introduction section 32 is connected to the root of the vertical injection section 31, and the annular introduction section 33 is connected to the arc runner introduction section 32 and is distributed around the barrel end of the sleeve groove 8. The arc bend formed between the arc runner introduction section 32 and the annular introduction section 33 can allow the casting alloy liquid to turn and flow in, reducing the impact force.

[0029] The first mold rod 51 is inserted into the barrel end of the sleeve groove 8, and the second mold rod 52 is inserted into the top end of the sleeve groove 8. The first mold rod 51 and the second mold rod 52 are connected to the adjustment seat 2. In addition, in order to facilitate demoulding and mold closing, an inclined hole 7 is opened on the adjustment seat 2, and an inclined guide column 6 is penetrated in the inclined hole 7. When demoulding, the inclined guide column 6 is controlled by the mechanical structure to be inserted downward into the inclined hole 7 of the adjustment seat 2, so that the first mold rod 51 and the second mold rod 52 can be pulled away from the sleeve groove 8.

[0030] exist Figure 2 and Figure 3 In the embodiment, when injecting zinc alloy liquid, a conical ejector rod 9 is inserted from bottom to top in the center of the sleeve mold core 1, and the conical ejector rod 9 forms the inner wall of the vertical injection section 31, so that the zinc alloy liquid flows downward from the top of the conical ejector rod 9 into the root and the arc-shaped runner introduction section 32 during injection. This design can buffer the injected liquid, reduce the runner size, and save materials.

[0031] Figure 4 This is a partial explosion diagram. Figure 5 yes Figure 4 In the enlarged view of the middle A, the annular lead-in section 33 is sleeved on the first mold rod 51, that is, it is distributed around the first mold rod 51. The annular lead-in section 33 includes an annular runner 331 and a plurality of pouring nozzles 332 connected to the annular runner 331. The pouring nozzles 332 are evenly distributed at the barrel end, in a pointed shape, and extend toward the inner barrel end. During casting, zinc alloy liquid is injected into the sleeve groove 8, and the liquid flows toward the top along the barrel end of the sleeve groove 8. This structure can better fill the cavity space compared to the method of directly impacting the side wall of the groove from the center of the mold core.

[0032] In some embodiments, because of the presence of casting metal slag and other impurities, as well as the generation of bubbles and cold shut, several slag ladles 10 can also be distributed on the sleeve mold core 1, and the pouring nozzles of the slag ladles 10 are evenly distributed at the top position of the sleeve groove 8. Because the casting flow flows from the barrel end to the top, the slag ladles 10 are located at the root of the casting and connected to the mold space. The number of pouring nozzles on the specific slag ladles 10 is determined according to actual conditions. In addition, a flow channel matching the number of slag ladles 10 is also provided on the sleeve mold core 1 to collect these impurities and ensure that the molten metal is not contaminated before flowing into the mold cavity. In addition, because bubbles may be generated when a liquid with a flow rate that is too fast enters the mold cavity, the use of slag ladles 10 plays a buffering role in the flow channel system, which can reduce the flow rate and reduce the generation of bubbles. In addition, the slag ladles 10 can also play a role in controlling the pressure and temperature of the molten metal. After entering the slag ladles 10, the molten metal is blocked to form a barrier layer, which slows down the speed of the liquid flow. In this way, the temperature and pressure of the molten metal can be effectively controlled.

[0033] Working principle: Before casting liquid, the conical ejector rod 9 is inserted from bottom to top into the sleeve mold core 1 and then the mold is closed. When closing the mold, the adjustment seat 2 is merged from both sides to control the first mold rod 51 and the second mold rod 52 to be inserted into the sleeve groove 8. The gap formed by the mold rod 5 and the sleeve groove 8 is used to inject liquid to generate a straight sleeve 4. The zinc alloy liquid flows in from the casting port, is buffered by the conical ejector rod 9, flows along the arc runner introduction section 32 through the annular introduction section 33 for further buffering, and finally is injected into the gap through the pouring nozzle 332. After the casting is completed, the inclined guide column 6 is controlled to be inserted into the inclined hole 7 opened on the adjustment seat 2, and the two mold rods 5 are pulled out of the sleeve groove 8 at the same time to complete the demoulding.

[0034] To summarize, the present application designs the casting mold runner to extend from the center of the mold core along the barrel end direction of the two sleeve grooves to form an arc runner introduction section, allowing the zinc alloy liquid to flow in from the arc bend formed between the arc runner introduction section and the annular introduction section to reduce the impact force, and finally injected from the annularly distributed nozzle, flowing from the barrel end of the barrel groove to the top along the groove gap, fully filling the product without impacting the side wall of the product, the product will not be stretched, and the product will be well formed, thereby improving product quality.

[0035] The preferred embodiments of the present invention are described above; it should be understood that the present invention is not limited to the above-mentioned specific implementation modes, and the devices and structures not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can make many possible changes and modifications without departing from the technical solution of the present invention, or modify them into equivalent embodiments with equivalent changes, which does not affect the essential content of the present invention; therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A straight sleeve die casting mold, characterized in that: It comprises a sleeve mold core (1), an adjustment seat (2) symmetrically arranged on both sides of the sleeve mold core (1), and a casting mold runner (3) opened on the sleeve mold core (1); A pair of sleeve grooves (8) are provided on the sleeve mold core (1), and the casting mold runner (3) is arranged between the sleeve grooves (8); a mold rod (5) matching the straight sleeve (4) is provided on the symmetrically arranged adjustment seat (2), and the mold rod (5) is inserted into the sleeve groove (8); The pouring channel inlet of the casting mold pouring channel (3) is located at the center of the sleeve mold core (1), and extends from the center of the mold core respectively along the barrel end direction of the two sleeve grooves (8) to form an arc-shaped pouring channel introduction section (32), so as to pour the zinc alloy liquid from the barrel end of the straight sleeve (4) into the sleeve groove (8).

2. The straight sleeve die-casting mold according to claim 1, characterized in that: The sleeve grooves (8) opened on the sleeve mold core (1) are parallel to each other, the sleeve ends are arranged in opposite directions, and the directions of casting to form the straight sleeve (4) parts are opposite.

3. The straight sleeve die-casting mold according to claim 1, characterized in that: The casting mold runner (3) comprises a vertical injection section (31), an arc runner introduction section (32) and an annular introduction section (33); The vertical injection section (31) is located at the center of the mold core, the arc runner introduction section (32) is connected to the root of the vertical injection section (31), and the annular introduction section (33) is connected to the arc runner introduction section (32) and is distributed around the barrel end of the sleeve groove (8).

4. The straight sleeve die-casting mold according to claim 3, characterized in that: A conical ejector rod (9) is also provided in the center of the sleeve mold core (1) from bottom to top to form the inner wall of the vertical injection section (31), and the zinc alloy liquid flows downward from the top of the conical ejector rod (9) into the root and the arc runner introduction section (32).

5. The straight sleeve die-casting mold according to claim 3, characterized in that: The sleeve end of the sleeve groove (8) is inserted into the first mold rod (51), and the top end of the sleeve groove (8) is inserted into the second mold rod (52); the first mold rod (51) and the second mold rod (52) are connected to the adjustment seat (2).

6. The straight sleeve die-casting mold according to claim 5, characterized in that: The annular introduction section (33) is sleeved on the first mold rod (51).

7. The straight sleeve die-casting mold according to claim 5, characterized in that: The annular introduction section (33) comprises an annular runner (331) and a plurality of pouring nozzles (332) connected to the annular runner (331); the pouring nozzles (332) are evenly distributed at the barrel end and inject zinc alloy liquid into the sleeve groove (8); the liquid flows along the barrel end of the sleeve groove (8) toward the top end.

8. The straight sleeve die-casting mold according to claim 5, characterized in that: A plurality of slag bags (10) are distributed on the sleeve mold core (1), and the pouring nozzles of the slag bags (10) are evenly distributed at the top positions of the sleeve grooves (8).

9. The straight sleeve die-casting mold according to claim 8, characterized in that: The slag bag (10) is distributed around the second mold rod (52).

10. The straight sleeve die-casting mold according to claim 9, characterized in that: An inclined hole (7) is provided on the adjustment seat (2), and an inclined guide column (6) is inserted into the inclined hole (7).

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