CN209502928U - A kind of die casting of Semi surrounding type - Google Patents

Abstract

The utility model relates to a kind of die castings of Semi surrounding type, including upper mold core, lower mold core and upper die holder, lower mold core upper center is provided with the forming part in rectangular boss, the spreader that forming part upper center is provided with longitudinally arranged sprue and is connected with sprue rear end, the two sides of sprue have been longitudinally arranged the first runner, the rear end local inclination of two the first runners, the front end bifurcated of sprue forms the second runner of two transverse directions, second runner one end is connected with the front end of the first runner, the sprue bush to match with spreader is provided in the middle part of upper mold core, upper mold core lower end is provided with several auxiliary flows.The sprue and runner of the utility model are arranged in the forming part of lower mold core, so that molten metal faster enters die cavity, second runner and the first runner are arranged around forming part upper end-face edge, melt is uniformly injected into die cavity by auxiliary flow, it is durable to obtain product in this way.

Description

A semi-enclosed die-casting mold

technical field

The utility model relates to the technical field of molds, in particular to a semi-enclosed die-casting mold.

Background technique

The main factor affecting product quality comes from the structure of the mold. The structure of the mold design is reasonable, which can greatly reduce the failure rate of the product, and can avoid defects such as bubbles and cold cutting of the product. In order to ensure that the mold can produce products with relatively complex structures, it is necessary to design a reasonable core-pulling structure and runners to greatly improve product quality.

Contents of the invention

The technical problem to be solved by the utility model is to provide a semi-enclosed die-casting mold, so that the product is relatively solid, without defects such as pores and bubbles, and improves the quality of the product.

The technical solution adopted by the utility model to solve the technical problem is: provide a semi-enclosed die-casting mold, including an upper mold core, a lower mold core and an upper mold base, the lower end surface of the upper mold base is installed with a lower Die base, between the upper mold base and the lower mold base, an upper mold core and a lower mold core that are stacked are installed, a mold cavity is formed between the upper mold core and the lower mold core, and the lower mold core The middle part of the upper end is provided with a forming part in the form of a rectangular boss, and the middle part of the upper end of the forming part is provided with a longitudinally arranged main flow channel and a splitter cone connected to the rear end of the main flow channel. channel, the rear ends of the two first flow channels are relatively curved, and the front ends of the main flow channel are bifurcated to form two transverse second flow channels, one end of the second flow channel is connected to the front end of the first flow channel, and the The middle part of the upper mold core is provided with a sprue sleeve matching the splitter cone, the upper end of the sprue sleeve passes through the upper mold base, and the lower end of the upper mold core is provided with several auxiliary runners, which are used to connect the first One runner is connected to the mold cavity or the second runner is connected to the mold cavity, and a core-pulling structure is provided between the upper mold base and the lower mold base on the left, right and front ends of the upper mold core and the lower mold core, The core-pulling structure includes a slider base, an insert and an oil cylinder. The slider base is slidably installed on the upper end of the lower mold base. One end of the slider base is provided with an insert extending into the mold cavity. One end is connected with the oil cylinder installed on the outside of the lower mold base, and the three inserts half-enclose the molding part, and the lower end of the upper mold core is provided with a molding block matching the three inserts.

As a supplement to the technical solution described in the utility model, several slag bags are arranged around the forming part at the upper end of the lower mold core.

As a supplement to the technical solution described in the present invention, the upper end of the lower mold core is provided with an exhaust groove on one side of a part of the slag bag.

As a supplement to the technical solution of the present invention, several forming notches are evenly arranged on the upper edge of the forming part.

As a supplement to the technical solution described in the present invention, two insert gaps are arranged side by side on the right side of the upper end of the forming part, and the lower end of the upper mold core is installed with a plug whose lower end extends into the insert gap. inserts.

As a supplement to the technical solution of the present invention, the first flow channel and the second flow channel are integrally formed.

As a supplement to the technical solution described in the present invention, two legs are vertically installed at both ends of the lower end of the lower mold base, and a push plate is installed between the lower ends of the two legs, and the push plate is vertically Several ejector pins inserted into the mold cavity are installed.

As a supplement to the technical solution described in the utility model, a lock module is installed on the upper part of the other end of the slider seat.

Beneficial effects: the utility model relates to a semi-enclosed die-casting mold. Both the main flow channel and the runner channel are arranged on the molding part of the lower mold core, so that the molten metal enters the mold cavity faster, and the second runner channel and the first runner channel It is arranged around the upper edge of the forming part, and the melt is evenly injected into the mold cavity through the auxiliary flow channel, so that the product is relatively strong, and there will be no defects such as pores and bubbles, which improves the quality of the product; consists of three inserts The forming part is half surrounded, and then the forming part can be surrounded by the cooperation of the forming block. The matching design of the insert and the forming block can facilitate the demoulding of the product and greatly improve the pass rate of the product.

Description of drawings

Fig. 1 is the internal schematic diagram of the main viewing direction of the utility model;

Fig. 2 is the internal schematic view of the right view direction of the utility model;

Fig. 3 is the structural representation of the lower mold base described in the utility model;

Fig. 4 is the structural representation of the lower mold core described in the utility model;

Fig. 5 is a schematic structural view of the upper mold core described in the present invention.

Illustration: 1. Sprue bushing, 2. Upper mold core, 3. Lower mold core, 4. Forming part, 5. Second runner, 6. Main runner, 7. First runner, 8. Slag bag, 9. Exhaust groove, 10. Splitter cone, 11. Insert notch, 12. Forming notch, 13. Auxiliary runner, 14. Insert, 15. Upper die holder, 16. Lower die holder, 17. Core-pulling structure , 18, push plate, 19, ejector rod, 20, support foot, 21, slider seat, 22, oil cylinder, 23, lock module, 24, insert block, 25, forming block.

Detailed ways

Below in conjunction with specific embodiment, further set forth the utility model. It should be understood that these embodiments are only used to illustrate the present utility model and are not intended to limit the scope of the present utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the appended claims of the application.

The embodiment of the present utility model relates to a semi-enclosed die-casting mold, as shown in Fig. A lower mold base 16 is installed on the top, and an upper mold core 2 and a lower mold core 3 that are stacked and installed are installed between the upper mold base 15 and the lower mold base 16. The upper mold core 2 and the lower mold core 3 A mold cavity is formed between them, and the middle part of the upper end of the lower mold core 3 is provided with a forming part 4 in the form of a rectangular boss, and the middle part of the upper end of the forming part 4 is provided with a longitudinally arranged main channel 6 and a splitter cone connected to the rear end of the main channel 6 10. Both sides of the main flow channel 6 are longitudinally arranged with first branch channels 7, the rear ends of the two first flow channel 7 are relatively curved, and the front ends of the main channel 6 are bifurcated to form two transverse first flow channels. Two runners 5, one end of the second runner 5 is connected to the front end of the first runner 7, the middle part of the upper mold core 2 is provided with a sprue sleeve 1 matched with the splitter cone 10, and the upper end of the sprue sleeve 1 is worn Through the upper mold base 15, the lower end of the upper mold core 2 is provided with several auxiliary runners 13, and the auxiliary runners 13 are used to connect the first runner 7 and the mold cavity or connect the second runner 5 and the mold cavity, Between the upper mold base 15 and the lower mold base 16, a core-pulling structure 17 is arranged on the left, right and front ends of the upper mold core 2 and the lower mold core 3, and the core-pulling structure 17 includes a slider base 21, Insert 24 and oil cylinder 22, described slider seat 21 is slidably installed on the lower mold base 16 upper end, and this slider seat 21 one end is provided with the insert 24 that stretches into die cavity, and described slider seat 21 other end and The oil cylinder 22 installed on the outside of the lower mold base 16 is connected, and the three inserts 24 half-enclose the molding part 4 . The lower end of the upper mold core 2 is provided with a molding block 25 matching the three inserts 24 .

The upper end of the lower mold core 3 is provided with several slag bags 8 surrounding the forming part 4 .

The upper end of the lower mold core 3 is located on one side of a part of the slag bag 8 and is provided with an exhaust groove 9 .

Several forming notches 12 are evenly arranged on the upper edge of the forming part 4 .

Two insert notches 11 are arranged side by side on the right side of the upper end of the molding part 4 , and the lower end of the upper mold core 2 is provided with an insert 14 whose lower end extends into the insert notches 11 .

The first flow channel 7 and the second flow channel 5 are integrally formed.

Two legs 20 are vertically installed at both ends of the lower end of the lower mold base 16, and a push plate 18 is installed between the lower ends of the two legs 20, and several push plates 18 are vertically installed on the push plate 18 to be inserted into the mold cavity. Ejector rod 19.

A lock module 23 is mounted on the upper part of the other end of the slider seat 21 .

Example

The upper mold base 15 and the upper mold core 2 are brought together with the lower mold core 3 and the lower mold base 16. After the completion, the melt in the molten state is injected into the mold cavity, and the solution enters the mold from the sprue sleeve 1 and passes through the splitter cone. 10 diversions, which flow through the main flow channel 6, the second flow channel 5 and the first flow channel 7 in sequence, and several auxiliary flow channels 13 are arranged at the lower end of the upper mold core 2, and the auxiliary flow channels 13 are used to connect the first flow channel 7 and the first flow channel 7. The mold cavity is connected to the second runner 5 and the mold cavity, and when flowing through the second runner 5 and the first runner 7 , part of the melt is evenly injected into the mold cavity through the auxiliary runner 13 . The practical main flow channel and the runner channel are both arranged on the molding part 4 of the lower mold core 3, so that the molten metal enters the mold cavity faster, and the second runner channel 5 and the first runner channel 7 are arranged around the upper edge of the molding part 4 Yes, the melt is evenly injected into the mold cavity through the auxiliary runner 13, so that the product is relatively strong, and defects such as pores and bubbles will not occur, and the quality of the product is improved. The molding part 4 is half-surrounded by three inserts 24, and then the molding part can be surrounded by the cooperation of the molding block 25. The matching design of the inserts 24 and the molding block 25 can facilitate the demoulding of the product and greatly improve the quality of the product. pass rate.

Claims (8)

1. a kind of die casting of Semi surrounding type, including upper mold core (2), lower mold core (3) and upper die holder (15), the upper die holder (15) lower die holder (16) are installed, being equipped between the upper die holder (15) and lower die holder (16) is in stack installation on lower end surface Upper mold core (2) and lower mold core (3), form die cavity between the upper mold core (2) and lower mold core (3), it is characterised in that: described Lower mold core (3) upper center is provided with the forming part (4) in rectangular boss, which is provided with longitudinal cloth The sprue (6) set and the spreader (10) being connected with sprue (6) rear end, the two sides of the sprue (6) are longitudinal It is disposed with the first runner (7), the rear end local inclination of two the first runners (7), the front end bifurcated of the sprue (6) Second runner (5) of two transverse directions is formed, which is connected with the front end of the first runner (7), described Upper mold core (2) in the middle part of be provided with spreader (10) match sprue bush (1), sprue bush (1) upper end pass through upper die holder (15), the upper mold core (2) lower end is provided with several auxiliary flows (13), and the auxiliary flow (13) is for connecting first point Runner (7) and die cavity connect the second runner (5) and die cavity, are located between the upper die holder (15) and lower die holder (16) The left and right side and front end of upper mold core (2) and lower mold core (3) are provided with pulled core structure (17), which includes Take-up housing (21), insert (24) and oil cylinder (22), the take-up housing (21) are slidably mounted on lower die holder (16) upper end, the sliding block Seat (21) one end is provided with the insert (24) for extending into die cavity, pacifies on the outside of the take-up housing (21) other end and lower die holder (16) The oil cylinder (22) of dress is connected, and three inserts (24) surround forming part (4) semi-surrounding, and the upper mold core (2) lower end is provided with The forming blocks (25) to match with three inserts (24).

2. a kind of die casting of Semi surrounding type according to claim 1, it is characterised in that: in the lower mold core (3) End is provided with several cinder ladles (8) around forming part (4).

3. a kind of die casting of Semi surrounding type according to claim 1, it is characterised in that: in the lower mold core (3) The side that end is located therein part cinder ladle (8) is provided with air discharge duct (9).

4. a kind of die casting of Semi surrounding type according to claim 1, it is characterised in that: in the forming part (4) End margin has been evenly arranged several shaped notch (12).

5. a kind of die casting of Semi surrounding type according to claim 1, it is characterised in that: the forming part (4) There are two opening side by side on the right side of upper end mold insert notch (11), the upper mold core (2) lower end is equipped with lower end and extend into mold insert notch (11) mold insert (14) in.

6. a kind of die casting of Semi surrounding type according to claim 1, it is characterised in that: first runner (7) it is integrally formed with the second runner (5).

7. a kind of die casting of Semi surrounding type according to claim 1, it is characterised in that: under the lower die holder (16) There are two end both ends are vertically-mounted stabilizer blade (20), push plate (18), the push plate are installed between two stabilizer blade (20) lower ends (18) the vertically-mounted knock-pin (19) for thering are several to be inserted into die cavity on.

8. a kind of die casting of Semi surrounding type according to claim 1, it is characterised in that: the take-up housing (21) is another The top of one end is equipped with lock module (23).