Filling die-casting structure of thin-wall product die-casting die

Abstract

The utility model relates to the field of die-casting dies, in particular to a filling die-casting structure of a thin-wall product die-casting die, which comprises an upper die and a lower die, the upper die is in contact with the lower die, a material injection channel and an exhaust channel are arranged in the upper die, and the outer side of the upper die is fixedly connected with a mounting seat. A hollow cylinder is connected to the inner side of the mounting base through threads and makes contact with the upper die, and a backflow preventing mechanism is arranged on the inner side of the hollow cylinder. Through the sucking pump, the transition hose, the hollow cylinder and the exhaust channel, materials injected into the mold can be vacuumized, so that the quality of products can be improved, honeycomb holes are reduced, the filling rate of the materials can be improved, and the quality of the products is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of die-casting molds, in particular to a filling die-casting structure of a die-casting mold for thin-walled products. Background Art

[0002] Thin-walled die-casting molds are used to produce thin-walled products made of materials such as aluminum alloys, magnesium alloys, and zinc alloys. Utility model patent CN116944462B discloses a thin-walled die-casting mold comprising a base, a die-casting mechanism, a conveying mechanism mounted on the die-casting mechanism, and an air supply mechanism mounted on the base, located at the bottom of the conveying mechanism. The air supply mechanism comprises a base frame, two base frames fixedly connected to the base frame, a connection box fixedly connected between the two base frames, and a fan mounted on the connection box.

[0003] However, when the existing die-casting mold is closed, the air remaining in the mold cannot be discharged, which will affect the filling rate of the material and thus affect the quality of the product. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the air remaining in the existing die-casting mold cannot be discharged when the mold is closed, which affects the filling rate of the material and thus affects the quality of the product. A filling die-casting structure for a thin-walled product die-casting mold is proposed.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A filling die-casting structure for a thin-walled product die-casting mold includes an upper mold and a lower mold, the upper mold and the lower mold are in contact with each other, an injection channel and an exhaust channel are provided inside the upper mold, the outer side of the upper mold is fixedly connected to a mounting seat, the inner side of the mounting seat is connected to a hollow cylinder by a thread, and the hollow cylinder is in contact with the upper mold, an anti-backflow mechanism is provided on the inner side of the hollow cylinder, a connecting nozzle is fixedly connected to the side of the hollow cylinder away from the upper mold, an air pump is fixedly installed on the upper end edge of the upper mold, the input end of the air pump is fixedly connected to a connecting pipe, and a transition hose is commonly connected between the connecting pipe and the connecting nozzle.

[0007] In addition, a preferred structure is that a through hole is provided on one side of the hollow cylinder close to the upper mold, and the through hole is communicated with the exhaust channel. The provision of the through hole facilitates the connection between the hollow cylinder and the exhaust channel.

[0008] In addition, a preferred structure is that a retaining ring is fixedly connected to the outside of the hollow tube, and the retaining ring contacts the mounting seat. The setting of the retaining ring has a positioning effect on the installation position of the hollow tube.

[0009] In addition, a preferred structure is that a sealing ring is embedded in the side of the retaining ring close to the mounting seat, and the sealing ring is in contact with the mounting seat. By providing the sealing ring, the sealing performance between the retaining ring and the mounting seat can be increased.

[0010] In addition, a preferred structure is that the anti-backflow mechanism includes a tapered tube fixedly connected to the inside of the hollow cylinder, a plurality of fixed rods fixedly connected to the inside of the tapered tube, a support block fixedly connected between the plurality of fixed rods, a sleeve fixedly connected to the support block, a sliding rod slidably connected to the inside of the sleeve, a plug fixedly connected to the end of the sliding rod, and the plug slidably connected to the inside of the right end opening of the tapered tube, and a spring is provided on the inside of the sleeve. The provision of the anti-backflow mechanism prevents air from flowing back after vacuuming the mold.

[0011] In addition, a preferred structure is that one end of the spring is fixedly connected to the slide rod, and the other end of the spring is fixedly connected to the inner side of the sleeve. The setting of the spring has an auxiliary reset effect for the plug.

[0012] The beneficial effects of the present invention are as follows: an exhaust channel is opened in the upper mold of the mold, and then a hollow cylinder is arranged on the outer side of the upper mold and at the end of the exhaust channel. The other end of the hollow cylinder is connected to the vacuum pump through a connecting nozzle and a transition hose. In addition, a lower anti-backflow mechanism is arranged on the inner side of the hollow cylinder. In this way, the material injected into the mold can be vacuumed through the vacuum pump, the transition hose, the hollow cylinder and the exhaust channel. In this way, not only the quality of the product can be improved and the generation of honeycomb holes can be reduced, but also the filling rate of the material can be increased, thereby further improving the quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a three-dimensional diagram of the overall structure of a filling die-casting structure of a thin-walled product die-casting mold proposed by the present invention;

[0014] Figure 2 The utility model proposes a filling die-casting structure for a thin-walled product die-casting mold. Figure 1 A sectional perspective view of a local structure;

[0015] Figure 3 The utility model proposes a filling die-casting structure for a thin-walled product die-casting mold. Figure 2 A magnified view of the local structure;

[0016] Figure 4 The utility model proposes a filling die-casting structure for a thin-walled product die-casting mold. Figure 1 Schematic diagram of the internal structure of the upper mold.

[0017] In the figure: 1. Upper mold; 2. Lower mold; 3. Injection channel; 4. Exhaust channel; 5. Mounting seat; 6. Hollow cylinder; 7. Through hole; 8. Connecting nozzle; 9. Anti-backflow mechanism; 10. Vacuum pump; 11. Connecting pipe; 12. Transition hose; 13. Retaining ring; 14. Sealing ring; 91. Conical tube; 92. Fixing rod; 93. Support block; 94. Sleeve; 95. Sliding rod; 96. Plug; 97. Spring. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] Reference Figure 1-4 A filling die-casting structure for a thin-walled product die-casting mold includes an upper mold 1 and a lower mold 2. The upper mold 1 and the lower mold 2 are in contact with each other. An injection channel 3 and an exhaust channel 4 are provided inside the upper mold 1. A mounting base 5 is fixedly connected to the outside of the upper mold 1. A hollow cylinder 6 is threadedly connected to the inside of the mounting base 5. The hollow cylinder 6 contacts the upper mold 1. A through hole 7 is provided on the side of the hollow cylinder 6 close to the upper mold 1, and the through hole 7 communicates with the exhaust channel 4. The provision of the through hole 7 facilitates the connection between the hollow cylinder 6 and the exhaust channel 4.

[0020] Reference Figure 3 A retaining ring 13 is fixedly connected to the outside of the hollow cylinder 6, and the retaining ring 13 is in contact with the mounting seat 5. A connecting nozzle 8 is fixedly connected to the side of the hollow cylinder 6 away from the upper mold 1. An air pump 10 is fixedly installed on the upper edge of the upper mold 1. A connecting pipe 11 is fixedly connected to the input end of the air pump 10. A transition hose 12 is commonly sleeved between the connecting pipe 11 and the connecting nozzle 8. The setting of the retaining ring 13 has a positioning effect on the installation position of the hollow cylinder 6. A sealing ring 14 is embedded in the side of the retaining ring 13 close to the mounting seat 5, and the sealing ring 14 is in contact with the mounting seat 5. The setting of the sealing ring 14 can increase the sealing between the retaining ring 13 and the mounting seat 5.

[0021] Reference Figure 3 The inner side of the hollow cylinder 6 is provided with an anti-backflow mechanism 9, which includes a tapered tube 91 fixedly connected to the inner side of the hollow cylinder 6. A plurality of fixed rods 92 are fixedly connected to the inner side of the tapered tube 91. A support block 93 is fixedly connected between the plurality of fixed rods 92. A sleeve 94 is fixedly connected to the support block 93. A sliding rod 95 is slidably connected to the inner side of the sleeve 94. A plug 96 is fixedly connected to the end of the sliding rod 95. The plug 96 is slidably connected to the inner side of the right end opening of the tapered tube 91. A spring 97 is provided on the inner side of the sleeve 94. The anti-backflow mechanism 9 has the function of preventing air from flowing back after the vacuum is evacuated inside the mold.

[0022] One end of spring 97 is fixedly connected to slide bar 95, and the other end of spring 97 is fixedly connected to the inside of sleeve 94. By the provision of spring 97, plug 96 is provided with an auxiliary reset effect.

[0023] The specific implementation process of the present invention is as follows: when in use, after the upper mold 1 and the lower mold 2 are closed, the material can be cast through the injection channel 3, and the air remaining in the mold is discharged through the vacuum pump 10, the connecting pipe 11, the transition hose 12, the hollow cylinder 6 and the exhaust channel 4. In this way, not only can the quality of the product be improved and the generation of honeycomb holes be reduced, but also the filling rate of the material can be increased, further improving the quality of the product. In addition, when the air enters the hollow cylinder 6, it will first enter the tapered tube 91 and rush open the plug 96. When the mold is vacuumed and the vacuum pump 10 is turned off, the plug 96 is reset under the action of the spring 97 and blocks the tapered tube 91, thereby preventing air from flowing back into the mold.

[0024] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A filling die-casting structure for a thin-walled product die-casting mold, comprising an upper mold (1) and a lower mold (2), characterized in that: The upper mold (1) and the lower mold (2) are in contact with each other, and an injection channel (3) and an exhaust channel (4) are provided inside the upper mold (1). The outer side of the upper mold (1) is fixedly connected to a mounting seat (5), and the inner side of the mounting seat (5) is connected to a hollow cylinder (6) through a thread, and the hollow cylinder (6) is in contact with the upper mold (1). An anti-backflow mechanism (9) is provided on the inner side of the hollow cylinder (6), and a connecting nozzle (8) is fixedly connected to the side of the hollow cylinder (6) away from the upper mold (1). An air pump (10) is fixedly installed on the upper edge of the upper mold (1), and the input end of the air pump (10) is fixedly connected to a connecting pipe (11), and a transition hose (12) is commonly sleeved between the connecting pipe (11) and the connecting nozzle (8).

2. The filling die-casting structure of a thin-walled product die-casting mold according to claim 1, characterized in that: A through hole (7) is provided on one side of the hollow cylinder (6) close to the upper mold (1), and the through hole (7) is communicated with the exhaust channel (4).

3. The filling die-casting structure of a thin-walled product die-casting mold according to claim 1, characterized in that: A retaining ring (13) is fixedly connected to the outer side of the hollow cylinder (6), and the retaining ring (13) is in contact with the mounting seat (5).

4. The filling die-casting structure of a thin-walled product die-casting mold according to claim 3, characterized in that: A sealing ring (14) is embedded in the side of the retaining ring (13) close to the mounting seat (5), and the sealing ring (14) is in contact with the mounting seat (5).

5. The filling die-casting structure of a thin-walled product die-casting mold according to claim 1, characterized in that: The backflow prevention mechanism (9) comprises a conical tube (91) fixedly connected to the inner side of the hollow cylinder (6); a plurality of fixed rods (92) are fixedly connected to the inner side of the conical tube (91); a support block (93) is fixedly connected between the plurality of fixed rods (92); a sleeve (94) is fixedly connected to the support block (93); a sliding rod (95) is slidably connected to the inner side of the sleeve (94); a plug (96) is fixedly connected to the end of the sliding rod (95); and the plug (96) is slidably connected to the inner side of the right end opening of the conical tube (91); and a spring (97) is provided on the inner side of the sleeve (94).

6. The filling die-casting structure of a thin-walled product die-casting mold according to claim 5, characterized in that: One end of the spring (97) is fixedly connected to the slide bar (95), and the other end of the spring (97) is fixedly connected to the inner side of the sleeve (94).

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