U-shaped pipe fitting injection mold with spool core-pulling mechanism

Abstract

The utility model belongs to the technical field of molds, and particularly relates to a U-shaped pipe fitting injection mold with a spool core-pulling mechanism. An upper die base is arranged below the upper die plate, an upper die core is arranged below the upper die base, a lower die core is arranged below the upper die core in a press fit mode, a connecting plate is arranged below the lower die core, a sealing block is arranged above the connecting plate, a first air cylinder is arranged on one side of the sealing block, and an ejector block is arranged above the sealing block. A second air cylinder is arranged on one side of the ejector block, a lower die base is arranged below the connecting plate, a sliding column, a V-shaped block and a third air cylinder are arranged in the upper portion of the lower die base, an ejector plate is arranged below the lower die base, and a first ejector rod and a second ejector rod are arranged above the ejector plate. Therefore, secondary processing caused by the complexity of the product piece is avoided, the workload is reduced, and the working efficiency and the yield are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds and relates to a U-shaped pipe fitting injection mold with an axis-winding core-pulling mechanism. Background Art

[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding. The advantages of the injection molding method are fast production speed, high efficiency, automated operation, a wide variety of colors and patterns, shapes from simple to complex, sizes from large to small, and precise product size. The product is easy to update and can be made into parts with complex shapes. Injection molding is suitable for mass production and molding processing fields such as products with complex shapes. This method is suitable for mass production of parts with complex shapes and is one of the important processing methods. The existing U-shaped pipe fittings with a winding core pulling mechanism have complex shapes and are hollow inside. During normal injection molding, they are hollowed out after the whole is injected or hollowed out inside to meet the requirements. This increases the workload and reduces work efficiency and output. Therefore, in view of the above problems, a U-shaped pipe fitting injection mold with a winding core pulling mechanism is proposed. Utility Model Content

[0003] The utility model aims to solve the above problems and provides a U-shaped pipe injection mold with a core pulling mechanism around an axis.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A U-shaped pipe fitting injection mold with an axis-winding core-pulling mechanism comprises an upper mold plate, an upper mold base is arranged below the upper mold plate, an upper mold core is arranged below the upper mold base, and an injection port assembly is arranged in the upper mold core, the upper mold base and the upper mold plate, a lower mold core is arranged below the upper mold core, and a sealing block is arranged on one side of the upper mold core and the lower mold core, and a V-shaped block is arranged below the lower mold core and the sealing block, a top block is arranged above the sealing block, and a second cylinder is arranged on one side of the sealing block, and a first cylinder is arranged on one side of the top block, and the sealing block, the lower mold core, The first cylinder and the second cylinder are both placed above the connecting plate, a limiting column is provided between the upper die seat and the connecting plate, a lower die seat is provided below the connecting plate, a sliding column is provided at one end of the V-shaped block, and the sliding column is placed below the lower die seat, a third cylinder is provided below the other end of the V-shaped block, and the third cylinder is placed in one side of the lower die seat, a supporting column and a top plate are provided in one side below the lower die seat, a lower template is provided below the lower die seat, and a positioning column is provided on one side between the lower template and the upper template, and a first push rod and a second push rod are provided above the top plate.

[0006] In the above-mentioned U-shaped pipe fitting injection mold with an axis-winding core-pulling mechanism, the bottom of the upper mold plate is fixedly connected to the upper mold base, and a groove is opened on one side of the bottom of the upper mold base, and the upper mold core is fixedly connected in the groove, and an upper mold core groove is opened at the bottom of the upper mold core, and an injection port assembly is inserted and fixedly connected in the upper mold plate, the upper mold base and the upper mold core, and the bottom of the injection port assembly is connected to the upper mold core groove.

[0007] In the above-mentioned U-shaped pipe injection mold with an axis-winding core pulling mechanism, the bottom of the upper mold core is pressed against the top of the lower mold core, and a lower mold core groove is provided at the bottom of the lower mold core. The bottom of the lower mold core is fixedly connected to the top of one side of the connecting plate, and a first sliding groove is provided on the other side of the connecting plate, and a sealing block is slidably connected in the first sliding groove.

[0008] In the above-mentioned U-shaped pipe injection mold with an axis-winding core pulling mechanism, a second slide groove is opened above the sealing block, and a top block is slidably connected in the second slide groove. The top block and the other end of the inner side of the sealing block are respectively blocked at the side opening where the upper mold core groove and the lower mold core groove are combined, and a cavity is formed in the combination of the top block, the sealing block, the upper mold core groove and the lower mold core groove.

[0009] In the above-mentioned U-shaped pipe injection mold with an axis-winding core pulling mechanism, the first cylinder is fixedly connected in the first slide groove, and one end of the first cylinder is fixedly connected to the sealing block, and the second cylinder is fixedly connected in the second slide groove, and one end of the second cylinder is fixedly connected to the top block.

[0010] In the above-mentioned U-shaped pipe injection mold with an axis-winding core-pulling mechanism, the four corners of the bottom of the upper mold base are fixedly connected with limit columns, the lower part of the limit columns is inserted into one side of the sliding connection plate, and the limit columns are placed with a distance between the upper mold core and the lower mold core.

[0011] In the above-mentioned U-shaped pipe injection mold with an axis-winding core pulling mechanism, the bottom of the connecting plate is fixedly connected to the lower mold base, and a slide groove is opened on one side of the lower mold base, a moving path is opened at the bottom of the slide groove, and two sliding columns are inserted into the inner side of the slide groove for sliding connection.

[0012] In the above-mentioned U-shaped pipe injection mold with an axis-winding core pulling mechanism, the top of the sliding column is rotatably connected to a V-block, and the bottom of the V-block is placed in a slideway groove, the bottom of the outer end of the V-block is fixedly connected to a third cylinder, and the middle of the third cylinder is fixedly connected to a limit block, and the top of the limit block is rotatably connected to the bottom of the connecting plate.

[0013] In the above-mentioned U-shaped pipe injection mold with an axis-winding core-pulling mechanism, a movable groove is opened on one side of the bottom of the lower mold base, and a support column is fixedly connected in the movable groove. The bottom of the support column is inserted into the sliding connection top plate, and the bottom of the lower mold base is fixedly connected to the lower mold plate, and the top of the lower mold plate is tightly fitted with the bottom of the top plate.

[0014] In the above-mentioned U-shaped pipe injection mold with an axis-winding core-pulling mechanism, the first push rod and the second push rod are fixedly connected above the top plate, and the first push rod and the second push rod both pass through the lower mold base, the connecting plate and the lower mold core upward, and at the same time, the tops of the first push rod and the second push rod are tightly fitted with the bottom of the upper mold core.

[0015] Compared with the existing technology, the advantages of the utility model are:

[0016] The utility model has an upper mold base below the upper mold base, and an upper mold core below the upper mold base, an injection port assembly is inserted into the upper mold base, the upper mold base and the upper mold core, a lower mold core is pressed together below the upper mold core, a connecting plate is provided below the lower mold core, and a sealing block is provided above the connecting plate, and at the same time, a first cylinder is provided on one side of the sealing block, a top block is provided above the sealing block, and a second cylinder is provided on one side of the top block, a lower mold base is provided below the connecting plate, and a sliding column, a V-shaped block and a third cylinder are provided above the lower mold base, a top plate is provided below the lower mold base, and a first push rod and a second push rod are provided above the top plate, a plurality of components inside the mold are used to form a cavity together, and a secondary mold opening method is used to obtain a product, thereby avoiding secondary processing caused by the complexity of the product, reducing the workload, and increasing the work efficiency and output.

[0017] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an overall schematic diagram of the utility model;

[0019] Figure 2 This is an overall exploded top view of the utility model.

[0020] Figure 3 It is an overall exploded bottom view schematic diagram of the utility model;

[0021] Figure 4 This is a schematic diagram of the inner seal cooperation of the lower mold core of the utility model;

[0022] Figure 5 It is a schematic diagram of the cooperation between the lower die base and the third cylinder of the utility model.

[0023] In the figure: 1. upper template; 2. injection port assembly; 3. upper mold base; 31. groove; 4. upper mold core; 41. upper mold core groove; 5. lower mold core; 51. lower mold core groove; 6. connecting plate; 61. first slide groove; 7. lower mold base; 71. movable groove; 72. slideway groove; 73. moving way; 8. lower template; 9. sealing block; 91. second slide groove; 10. top plate; 11. top block; 12. support column; 13. first cylinder; 14. second cylinder; 15. third cylinder; 16. V-block; 17. limit block; 18. slide column; 19. positioning column; 20. limit column; 21. first push rod; 22. second push rod. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings.

[0025] like Figure 1-5 As shown, a U-shaped pipe fitting injection mold with an axis-winding core pulling mechanism includes an upper mold plate 1, an upper mold base 3 is provided below the upper mold plate 1, an upper mold core 4 is provided below the upper mold base 3, and an injection port assembly 2 is provided in the upper mold core 4, the upper mold base 3 and the upper mold plate 1, a lower mold core 5 is provided below the upper mold core 4, and a sealing block 9 is provided on one side of the upper mold core 4 and the lower mold core 5, and a V-shaped block 16 is provided below the lower mold core 5 and the sealing block 9, a top block 11 is provided above the sealing block 9, and a second cylinder 14 is provided on one side of the sealing block 9, and a first cylinder 13 is provided on one side of the top block 11, and the sealing block 9, the lower mold core 5, the first The cylinder 13 and the second cylinder 14 are both placed above the connecting plate 6, a limiting column 20 is provided between the upper die seat 3 and the connecting plate 6, a lower die seat 7 is provided below the connecting plate 6, a sliding column 18 is provided at one end of the V-block 16, and the sliding column 18 is placed below the lower die seat 7, a third cylinder 15 is provided below the other end of the V-block 16, and the third cylinder 15 is placed on one side of the lower die seat 7, a support column 12 and a top plate 10 are provided on one side below the lower die seat 7, a lower mold plate 8 is provided below the lower mold seat 7, and a positioning column 19 is provided on one side between the lower mold plate 8 and the upper mold plate 1, and a first push rod 21 and a second push rod 22 are provided above the top plate 10.

[0026] The upper mold base 3 is fixedly connected through the bottom of the upper mold plate 1, and a groove 31 is opened on one side of the bottom of the upper mold base 3, and the upper mold core 4 is fixedly connected in the groove 31, and an upper mold core groove 41 is opened at the bottom of the upper mold core 4. The injection port assembly 2 is inserted and fixedly connected in the upper mold plate 1, the upper mold base 3 and the upper mold core 4, and the bottom of the injection port assembly 2 is connected to the upper mold core groove 41.

[0027] An injection port assembly 2 is provided inside the upper mold plate 1, the upper mold base 3 and the upper mold core 4. The injection port assembly 2 is used to inject the injection liquid into the interior. When the injection liquid reaches the upper mold core groove 41, the interior of the mold is formed.

[0028] Furthermore, the bottom of the upper mold core 4 is pressed against the top of the lower mold core 5, and a lower mold core groove 51 is opened at the bottom of the lower mold core 5. The bottom of the lower mold core 5 is fixedly connected to the top of one side of the connecting plate 6, and a first sliding groove 61 is opened on the other side of the connecting plate 6. The sealing block 9 is slidably connected in the first sliding groove 61.

[0029] Furthermore, a second slide groove 91 is opened above the sealing block 9, and the top block 11 is slidably connected in the second slide groove 91. The top block 11 and the other end of the inner side of the sealing block 9 are respectively blocked at the side opening where the upper mold core groove 41 and the lower mold core groove 51 are combined, and a cavity is formed in the combination of the top block 11, the sealing block 9, the upper mold core groove 41 and the lower mold core groove 51.

[0030] A lower mold core 5 is provided below the upper mold core 4, and a connecting plate 6 is provided below the lower mold core 5. A sealing block 9 and a top block 11 are provided on one side of the upper mold core 4 and the lower mold core 5. Since the injection molded product is hollow, the special columnar parts provided on the sealing block 9 and the top block 11 are used to merge with the upper mold core groove 41 and the lower mold core groove 51 to form an internal molding cavity.

[0031] Further, the first cylinder 13 is fixedly connected in the first slide groove 61 , and one end of the first cylinder 13 is fixedly connected to the sealing block 9 , and the second cylinder 14 is fixedly connected in the second slide groove 91 , and one end of the second cylinder 14 is fixedly connected to the top block 11 .

[0032] The first cylinder 13 and the second cylinder 14 can be used to separate the sealing block 9 and the top block 11 from the inside of the mold when the mold is opened.

[0033] The limiting columns 20 are fixedly connected in the four corners of the bottom of the upper mold base 3, and the lower part of the limiting columns 20 is inserted into one side of the sliding connection connecting plate 6, and the limiting columns 20 are placed between the upper mold core 4 and the lower mold core 5 with a distance.

[0034] A limiting column 20 is provided between the upper mold base 3 and the connecting plate 6. When the mold is closed, the limiting column 20 is inserted into the connecting plate 6 to align the upper mold core 4 with the lower mold core 5 to ensure that the inner wall molding cavity is complete and not offset.

[0035] The lower die base 7 is fixedly connected through the bottom of the connecting plate 6 , and a slideway groove 72 is opened on one side of the lower die base 7 , a moving path 73 is opened at the bottom of the slideway groove 72 , and two slide posts 18 are inserted into the inner side of the slideway groove 72 for sliding connection.

[0036] Furthermore, the top of the sliding column 18 is rotatably connected to the V-block 16, and the bottom of the V-block 16 is placed in the slideway groove 72, the bottom of the outer end of the V-block 16 is fixedly connected to the third cylinder 15, and the middle of the third cylinder 15 is fixedly connected to the limit block 17, and the top of the limit block 17 is rotatably connected to the bottom of the connecting plate 6.

[0037] A slide column 18, a V-block 16 and a third cylinder 15 are provided above the lower die seat 7. The third cylinder 15 is used to drive the V-block 16 and the slide column 18 to move, and parts above the V-block 16 are inserted into the molding cavity for internal molding of the product. When the mold is opened, the third cylinder 15 is started and drives the parts above the V-block 16.

[0038] A movable groove 71 is opened on one side of the bottom of the lower mold base 7, and a support column 12 is fixedly connected in the movable groove 71. The support column 12 is inserted into the sliding connection top plate 10 below. The bottom of the lower mold base 7 is fixedly connected to the lower mold plate 8, and the top of the lower mold plate 8 is tightly fitted with the bottom of the top plate 10.

[0039] Furthermore, the top of the top plate 10 is fixedly connected to the first top rod 21 and the second top rod 22, and the first top rod 21 and the second top rod 22 both pass through the lower mold base 7, the connecting plate 6 and the lower mold core 5 upward, and the tops of the first top rod 21 and the second top rod 22 are tightly fitted with the bottom of the upper mold core 4.

[0040] A top plate 10 is provided at the bottom of the lower mold base 7, and a first push rod 21 and a second push rod 22 are provided above the top plate 10. By utilizing external force, when the mold is opened, the top plate 10 moves upward, driving the first push rod 21 and the second push rod 22 upward to push open the upper mold core 4.

[0041] Working principle:

[0042] An upper mold base 3 is provided below the upper mold base 1, and an upper mold core 4 is provided below the upper mold base 3. An injection port assembly 2 is inserted into the upper mold base 1, the upper mold base 3 and the upper mold core 4. The injection port assembly 2 is used to inject injection liquid into the mold. A lower mold core 5 is pressed below the upper mold core 4, and an upper mold core groove 41 and a lower mold core groove 51 are respectively provided inside the upper mold core 4 and the lower mold core 5 to merge a part of the molding cavity. A connecting plate 6 is provided below the lower mold core 5, and a sealing block 9 is provided above the connecting plate 6. At the same time, a first cylinder 13 is provided on one side of the sealing block 9, a top block 11 is provided above the sealing block 9, and a second cylinder 14 is provided on one side of the top block 11. A lower mold base 7 is provided below the connecting plate 6, and a sliding column 18 and a V-shaped Block 16 and the third cylinder 15, so that the upper mold core groove 41, the lower mold core groove 51, the inner column of the sealing block 9, the inner column of the top block 11 and the parts above the V-block 16 together form the interior of the product cavity, a top plate 10 is provided below the lower mold base 7, and the top plate 10 is placed above the lower template 8, and a first push rod 21 and a second push rod 22 are provided above the top plate 10. When opening the mold, the top plate 10 is pushed up by an external force, so that the first push rod 21 and the second push rod 22 lift the upper mold core 4 and the parts above it, so that the upper mold core 4 is opened first, and then the first cylinder 13, the second cylinder 14 and the third cylinder 15 are started to drive the corresponding internal parts to perform secondary internal mold opening, and the overall mold opening is completed.

[0043] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways without departing from the spirit of the present invention.

[0044] Although this article uses more terms such as 1, upper template; 2, injection port assembly; 3, upper mold base; 31, groove; 4, upper mold core; 41, upper mold core groove; 5, lower mold core; 51, lower mold core groove; 6, connecting plate; 61, first slide groove; 7, lower mold base; 71, movable groove; 72, slideway groove; 73, moving way; 8, lower template; 9, sealing block; 91, second slide groove; 10, top plate; 11, top block; 12, support column; 13, first cylinder; 14, second cylinder; 15, third cylinder; 16, V-block; 17, limit block; 18, slide column; 19, positioning column; 20, limit column; 21, first ejector rod; 22, second ejector rod, etc., it does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of the utility model. It is contrary to the spirit of the utility model to interpret them as any additional restrictions.

Claims

1. A U-shaped pipe injection mold with an axis-winding core-pulling mechanism, comprising an upper mold plate (1), characterized in that: An upper mold base (3) is provided below the upper mold base (1), an upper mold core (4) is provided below the upper mold base (3), and an injection port assembly (2) is provided in the upper mold core (4), the upper mold base (3) and the upper mold base (1), a lower mold core (5) is provided below the upper mold core (4), and a sealing block (9) is provided on one side of the upper mold core (4) and the lower mold core (5), and a V-shaped block (16) is provided below the lower mold core (5) and the sealing block (9), a top block (11) is provided above the sealing block (9), and a second cylinder (14) is provided on one side of the sealing block (9), and a first cylinder (13) is provided on one side of the top block (11), and the sealing block (9), the lower mold core (5), the first cylinder (13) and the second cylinder (14) are all placed in a connection. A limit column (20) is provided between the upper die seat (3) and the connecting plate (6) above the plate (6), a lower die seat (7) is provided below the connecting plate (6), a sliding column (18) is provided at one end of the V-shaped block (16), and the sliding column (18) is placed below the lower die seat (7), a third cylinder (15) is provided below the other end of the V-shaped block (16), and the third cylinder (15) is placed inside one side of the lower die seat (7), a support column (12) and a top plate (10) are provided inside one side below the lower die seat (7), a lower mold plate (8) is provided below the lower mold seat (7), and a positioning column (19) is provided on one side between the lower mold plate (8) and the upper mold plate (1), and a first push rod (21) and a second push rod (22) are provided above the top plate (10).

2. The U-shaped pipe fitting injection mold with a core pulling mechanism around an axis according to claim 1, characterized in that: The bottom of the upper mold plate (1) is fixedly connected to the upper mold base (3), and a groove (31) is provided on one side of the bottom of the upper mold base (3), and an upper mold core (4) is inserted and fixedly connected into the groove (31), and an upper mold core groove (41) is provided at the bottom of the upper mold core (4). The injection port assembly (2) is inserted and fixedly connected into the upper mold plate (1), the upper mold base (3) and the upper mold core (4), and the bottom of the injection port assembly (2) is connected to the upper mold core groove (41).

3. The U-shaped pipe fitting injection mold with a core pulling mechanism around an axis according to claim 2, characterized in that: The bottom of the upper mold core (4) is pressed against the top of the lower mold core (5), and a lower mold core groove (51) is provided at the bottom of the lower mold core (5). The bottom of the lower mold core (5) is fixedly connected to the top of one side of a connecting plate (6), and a first sliding groove (61) is provided on the other side of the connecting plate (6). The first sliding groove (61) is slidably connected to a sealing block (9).

4. The U-shaped pipe fitting injection mold with a core pulling mechanism around an axis according to claim 3, characterized in that: A second slide groove (91) is provided above the sealing block (9), and a top block (11) is slidably connected in the second slide groove (91). The top block (11) and the other end of the inner side of the sealing block (9) are respectively blocked at the side opening where the upper mold core groove (41) and the lower mold core groove (51) are combined, and a cavity is formed in the combination of the top block (11), the sealing block (9), the upper mold core groove (41) and the lower mold core groove (51).

5. The U-shaped pipe fitting injection mold with a core pulling mechanism around an axis according to claim 4, characterized in that: The first slide groove (61) is fixedly connected to the first cylinder (13), and one end of the first cylinder (13) is fixedly connected to the sealing block (9); the second slide groove (91) is fixedly connected to the second cylinder (14), and one end of the second cylinder (14) is fixedly connected to the top block (11).

6. The U-shaped pipe fitting injection mold with a core pulling mechanism around an axis according to claim 5, characterized in that: The four corners of the bottom of the upper mold base (3) are fixedly connected with limiting columns (20), the lower part of the limiting columns (20) is inserted into one side of the sliding connection plate (6), and the limiting columns (20) are placed at a distance between the upper mold core (4) and the lower mold core (5).

7. The U-shaped pipe fitting injection mold with a core pulling mechanism around an axis according to claim 6, characterized in that: The bottom of the connecting plate (6) is fixedly connected to the lower die base (7), and a slideway groove (72) is provided on one side of the lower die base (7). A moving path (73) is provided at the bottom of the slideway groove (72), and two slide posts (18) are inserted into the inner side of the slideway groove (72) for sliding connection.

8. The U-shaped pipe fitting injection mold with a core pulling mechanism around an axis according to claim 7, characterized in that: The upper part of the sliding column (18) is rotatably connected to the V-shaped block (16), and the lower part of the V-shaped block (16) is placed in the slideway groove (72). The lower part of the outer end of the V-shaped block (16) is fixedly connected to the third cylinder (15), and the middle part of the third cylinder (15) is fixedly connected to the limit block (17), and the upper part of the limit block (17) is rotatably connected to the bottom of the connecting plate (6).

9. The U-shaped pipe fitting injection mold with a core pulling mechanism around an axis according to claim 8, characterized in that: A movable groove (71) is provided on one side of the bottom of the lower die base (7), and a support column (12) is fixedly connected in the movable groove (71). The lower part of the support column (12) is inserted into the sliding connection top plate (10). The bottom of the lower die base (7) is fixedly connected to the lower mold plate (8), and the upper part of the lower mold plate (8) is tightly fitted with the bottom of the top plate (10).

10. The U-shaped pipe fitting injection mold with a core pulling mechanism around an axis according to claim 9, characterized in that: The top of the top plate (10) is fixedly connected to a first top rod (21) and a second top rod (22), and the first top rod (21) and the second top rod (22) both pass through the lower mold base (7), the connecting plate (6) and the lower mold core (5) upwards, and the tops of the first top rod (21) and the second top rod (22) are tightly fitted with the bottom of the upper mold core (4).

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