CPVC (Chlorinated Polyvinyl Chloride) stop valve injection mold

Abstract

The utility model belongs to the technical field of injection molds, and particularly relates to a CPVC (Chlorinated Polyvinyl Chloride) stop valve injection mold. The injection mold comprises an upper mold plate, an injection molding pipe fitting is arranged in the upper mold plate, an upper mold base is arranged below the upper mold plate, an upper mold core block, a lower mold core block, two pushing assemblies, a first check block and a second check block are arranged between the upper mold base and the lower mold base, positioning blocks are arranged on the pushing assemblies, and a connecting plate is arranged below the lower mold base. A connecting plate is arranged in the middle of the upper portion of the lower die plate, a supporting block and a lower die plate are arranged below the connecting plate, a top plate and a supporting column are arranged in the middle of the upper portion of the lower die plate, a top column is arranged above the top plate, and meanwhile a spring is arranged above the supporting column. The obtained product has no flash or damage, the success rate of the product is increased, and the reworking condition is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molds and relates to an injection mold for a CPVC stop valve. 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 dimensions. The products are easy to update and can be made into parts with complex shapes. Injection molding is suitable for mass production and molding and processing fields such as products with complex shapes. When the existing CPVC stop valve is injection molded, due to the complex shape of the valve body and the hollow inside, the valve body will be pulled and damaged during the injection molding, resulting in rework. Therefore, in view of the above problems, a CPVC stop valve injection mold is proposed. Utility Model Content

[0003] The utility model aims to provide a CPVC stop valve injection mold in view of the above problems.

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

[0005] A CPVC stop valve injection mold, comprising an upper mold plate, an injection molding pipe fitting is arranged downwardly in the middle of the upper mold plate, an upper mold seat is arranged below the upper mold plate, and an upper mold core block is installed in the middle of the upper mold seat, a push assembly, a first stopper and a second stopper are arranged on the circumferential side below the upper mold seat, and a positioning block is arranged on the inner side of the push assembly, and an inclined ejector rod and a straight ejector rod are arranged in the first stopper and the second stopper, respectively, a lower mold core block is arranged below the upper mold core block, and the upper mold core block and the lower mold core block are pressed together at the positioning block, the first stopper and the second stopper A lower die base is provided below the lower die core block, the pushing assembly, the first stop block and the second stop block, a gear is provided below the pushing assembly, and the gear is placed in both ends of the lower die base, a connecting plate is provided below the lower die base, the gear is placed above both ends of the connecting plate, support blocks are provided on both sides below the connecting plate, and a lower template is provided below the support blocks, a top plate and a support column are provided in the middle above the lower template, and a spring is provided on the outer sleeve above the support column, a top column is provided above the top plate, and the top column is inserted upward into the lower die core block.

[0006] In the above-mentioned CPVC stop valve injection mold, the center of the upper mold plate is inserted and fixedly connected to the injection molding pipe fitting, the bottom of the upper mold plate is fixedly connected to the upper mold base, and the injection molding pipe fitting passes through the middle of the upper mold base, and an upper mold core hole is opened in the middle of the upper mold base, and an upper mold core block is fixedly connected in the upper mold core hole, and the bottom of the upper mold core block is flush with the bottom of the upper mold base.

[0007] In the above-mentioned CPVC stop valve injection mold, an upper cavity groove is opened in the bottom of the upper mold core block, and the bottom of the upper cavity groove is flush with the bottom of the injection molded pipe fitting, and the injection molded pipe fitting is connected with the upper cavity groove. The bottom of the upper mold core block is pressed with the lower mold core block, and a lower cavity groove is opened in the top of the lower mold core block, and the lower cavity groove and the upper cavity groove are combined to form a molding cavity.

[0008] In the above-mentioned CPVC stop valve injection mold, the bottom of the upper mold base is pressed with two push components, the top of the first stop block and the second stop block, and the two push components are symmetrical on the same center line. At the same time, the two push components and the first stop block and the second stop block form a cross shape. The bottom of the push component is fixedly connected to the top of the lower mold base, and the bottoms of the first stop block and the second stop block are slidably connected to the top of the lower mold base.

[0009] In the above-mentioned CPVC stop valve injection mold, a lower mold core groove is opened in the middle of the lower mold base, and the bottom of the lower mold core block is fixedly connected in the lower mold core groove. The inner side of the pushing component is slidably connected to the positioning block, and the protruding cylindrical end of the positioning block, the protruding cylindrical end of the first stop block and the protruding cylindrical end of the second stop block are all inserted into the molding cavity.

[0010] In the above-mentioned CPVC stop valve injection mold, the first block is fixedly connected to the inner side of an inclined ejector rod, and the second block is fixedly connected to the inner side of a plurality of straight ejector rods. The upper sides of the inclined ejector rods and the straight ejector rods are inserted into the sliding connection upper mold base.

[0011] In the above-mentioned CPVC stop valve injection mold, through holes are provided on both sides of the lower mold base, the bottom of the lower mold base is fixedly connected to the connecting plate, and arc grooves are provided on both sides of the connecting plate, and the lower part of the pushing component is rotatably connected to the gear, and the middle and lower parts of the gear are respectively placed in the through hole and the arc groove.

[0012] In the above-mentioned CPVC stop valve injection mold, the two sides of the bottom of the connecting plate are fixedly connected to the support blocks, the bottom of the support block is fixedly connected to the lower mold plate, the top plate is placed in the middle of the lower mold plate, and the top plate is placed between the two support blocks with a distance.

[0013] In the above-mentioned CPVC stop valve injection mold, a plurality of support columns are fixedly connected above the top plate, and the support columns pass through the sliding connection top plate, while the top of the support column is inserted into the bottom of the connecting plate, and the spring is placed between the connecting plate and the top plate.

[0014] In the above-mentioned CPVC stop valve injection mold, a plurality of top columns are fixedly connected in the top plate, and the top columns are inserted upward into the upper cavity groove, and the top of the top column is flush with the bottom of the upper cavity groove.

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

[0016] The utility model has an injection molding pipe fitting arranged in an upper mold plate, and an upper mold base is arranged below the upper mold plate, and an upper mold core block, a lower mold core block, two pushing components, a first stop block and a second stop block are arranged between the upper mold base and the lower mold base, and a positioning block is arranged on the pushing component, a connecting plate is arranged below the lower mold base, and a supporting block and a lower mold plate are arranged below the connecting plate, a top plate and a supporting column are arranged in the middle above the lower mold plate, and a top column is arranged above the top plate, and a spring is arranged above the supporting column, and a plurality of devices arranged inside the mold are used for cooperation, and when the plurality of devices are used to open the mold in batches, the obtained product parts have no flash and damage, thereby increasing the success rate of the product and avoiding rework.

[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 It is an overall exploded top view schematic diagram of the utility model;

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

[0021] Figure 4 It is a schematic diagram of the cooperation between the push assembly and the lower mold core block of the utility model;

[0022] Figure 5 It is an overall internal schematic diagram of the utility model.

[0023] In the figure: 1. upper mold plate; 2. injection molding pipe fitting; 3. upper mold base; 31. upper mold core hole; 4. upper mold core block; 41. upper cavity groove; 5. lower mold core block; 51. lower cavity groove; 6. pushing assembly; 7. positioning block; 8. first stopper; 81. inclined ejector rod; 9. second stopper; 91. straight ejector rod; 10. lower mold base; 11. lower mold core groove; 12. through hole; 13. connecting plate; 14. arc groove; 15. support block; 16. lower mold plate; 17. ejector plate; 18. ejector column; 19. support column; 20. spring; 21. gear. DETAILED DESCRIPTION

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

[0025] like Figure 1-5As shown, a CPVC stop valve injection mold comprises an upper mold plate 1, an injection molding pipe fitting 2 is arranged downwardly in the middle of the upper mold plate 1, an upper mold base 3 is arranged below the upper mold plate 1, and an upper mold core block 4 is installed in the middle of the upper mold base 3, a pushing assembly 6, a first stopper 8 and a second stopper 9 are arranged on the circumferential side below the upper mold base 3, and a positioning block 7 is arranged on the inner side of the pushing assembly 6, and an inclined ejector rod 81 and a straight ejector rod 91 are arranged in the first stopper 8 and the second stopper 9, respectively, a lower mold core block 5 is arranged below the upper mold core block 4, and the upper mold core block 4 and the lower mold core block 5 are pressed and disposed between the positioning block 7, the first stopper 8 and the second stopper 9, and the lower mold core block 5 is ... A lower die base 10 is provided below the block 5, the pushing assembly 6, the first stop block 8 and the second stop block 9, a gear 21 is provided below the pushing assembly 6, and the gear 21 is placed in both ends of the lower die base 10, a connecting plate 13 is provided below the lower die base 10, and the gear 21 is placed above both ends of the connecting plate 13, support blocks 15 are provided on both sides below the connecting plate 13, and a lower template 16 is provided below the support block 15, a top plate 17 and a support column 19 are provided in the middle above the lower template 16, and a spring 20 is provided on the outer sleeve above the support column 19, a top column 18 is provided above the top plate 17, and the top column 18 is inserted upward into the lower die core block 5.

[0026] An injection molding tube 2 is inserted and fixedly connected through the center of the upper mold plate 1, the bottom of the upper mold plate 1 is fixedly connected to the upper mold base 3, and the middle of the upper mold base 3 passes through the injection molding tube 2, an upper mold core hole 31 is opened in the middle of the upper mold base 3, and an upper mold core block 4 is fixedly connected in the upper mold core hole 31, and the bottom of the upper mold core block 4 is flush with the bottom of the upper mold base 3.

[0027] Furthermore, an upper cavity groove 41 is opened in the bottom of the upper mold core block 4, and the bottom of the upper cavity groove 41 is flush with the bottom of the injection molding tube 2, and the injection molding tube 2 is connected with the upper cavity groove 41. The lower mold core block 5 is pressed on the bottom of the upper mold core block 4, and a lower cavity groove 51 is opened in the top of the lower mold core block 5, and the lower cavity groove 51 and the upper cavity groove 41 are combined into a molding cavity.

[0028] An injection molding pipe 2 is arranged in the upper mold plate 1, and the injection molding liquid is injected into the upper mold core block 4 and the lower mold core block 5 pressed together inside the integral mold through the injection molding pipe 2 to obtain a product.

[0029] The two pushing components 6, the first stop block 8 and the second stop block 9 are pressed together at the bottom of the upper mold base 3, and the two pushing components 6 are symmetrical along the same center line. At the same time, the two pushing components 6 and the first stop block 8 and the second stop block 9 form a cross shape. The bottom of the pushing component 6 is fixedly connected to the top of the lower mold base 10, and the bottom of the first stop block 8 and the second stop block 9 are slidably connected to the top of the lower mold base 10.

[0030] Furthermore, a lower mold core groove 11 is opened in the middle of the lower mold base 10, and the bottom of the lower mold core block 5 is fixedly connected in the lower mold core groove 11, and the inner side of the push component 6 is slidably connected to the positioning block 7, and the protruding cylindrical end of the positioning block 7, the protruding cylindrical end of the first stop block 8 and the protruding cylindrical end of the second stop block 9 are all inserted into the molding cavity.

[0031] Furthermore, an inclined ejector rod 81 is fixedly connected to the inner side of the first stopper 8 , and a plurality of straight ejector rods 91 are fixedly connected to the inner side of the second stopper 9 . The upper sides of the inclined ejector rods 81 and the straight ejector rods 91 are inserted into the upper die base 3 for sliding connection.

[0032] Furthermore, through holes 12 are opened on both sides of the lower mold base 10, the bottom of the lower mold base 10 is fixedly connected to the connecting plate 13, and arc grooves 14 are opened on both sides of the connecting plate 13, and the gear 21 is rotated and connected at the bottom of the pushing component 6, and the middle and bottom of the gear 21 are respectively placed in the through hole 12 and the arc groove 14.

[0033] A pushing assembly 6, a first stopper 8 and a second stopper 9 are provided between the upper mold base 3 and the lower mold base 10. The three will block the outer peripheral sides of the upper mold core block 4 and the lower mold core block 5 to prevent the injection liquid from overflowing. At the same time, protruding cylindrical ends are inserted into the inner ends of the three to form the hollow of the internal product parts.

[0034] The support blocks 15 are fixedly connected to the two sides of the bottom of the connecting plate 13 , and the bottom of the support block 15 is fixedly connected to the lower template 16 . A top plate 17 is placed in the middle of the lower template 16 , and the top plate 17 is placed between the two support blocks 15 with a distance.

[0035] Furthermore, a plurality of support columns 19 are fixedly connected above the top plate 17 , and the support columns 19 pass through the sliding connection top plate 17 , while the top of the support column 19 is inserted into the bottom of the connecting plate 13 , and the spring 20 is placed between the connecting plate 13 and the top plate 17 .

[0036] Furthermore, a plurality of top columns 18 are fixedly connected inside the top plate 17 , and the top columns 18 are inserted upward into the upper cavity groove 41 , and the tops of the top columns 18 are flush with the bottom of the upper cavity groove 41 .

[0037] A top plate 17 is provided above the lower mold plate 16. Under external force, the top plate 17 is pushed to drive the ejector column 18. When the mold is opened, the ejector column 18 is used to eject the product.

[0038] Working principle:

[0039] An injection molding tube 2 is arranged in the upper mold plate 1, and an upper mold base 3 is arranged below the upper mold plate 1. An upper mold core block 4, a lower mold core block 5, two push components 6, a first stopper 8 and a second stopper 9 are arranged between the upper mold base 3 and the lower mold base 10. A product cavity is pressed between the upper mold core block 4 and the lower mold core block 5, and a positioning block 7 is arranged on the push component 6. A protruding cylindrical end is inserted into the cavity at the inner end of the positioning block 7, the first stopper 8 and the second stopper 9, so that a complete product cavity is formed inside the cavity. A connecting plate 13 is arranged below the lower mold base 10, and a support block 15 and a lower mold plate 16 are arranged below the connecting plate 13. A top plate 1 is arranged in the middle above the lower mold plate 16. 7 and support column 19, and a push column 18 is provided above the top plate 17, and a spring 20 is provided above the support column 19. When opening the mold, the first stop block 8 and the second stop block 9 are first moved outward, and the upper upper mold base 3 and its upper components are disengaged by using the inclined push rod 81 and the straight push rod 91 provided in the two. Then the gear 21 provided under the pushing component 6 is rotated to drive the inner positioning block 7 to exit the cavity. Finally, the top plate 17 moves upward under the external force, and the push column 18 is lifted upward to eject the product inside the cavity, forming the entire mold opening procedure. After the mold opening is completed, the top plate 17 falls and uses the properties of the spring 20 to prevent the top plate 17 from hitting the upper plane of the lower template 16.

[0040] 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.

[0041] Although this article uses more terms such as 1, upper mold plate; 2, injection molding pipe; 3, upper mold base; 31, upper mold core hole; 4, upper mold core block; 41, upper cavity groove; 5, lower mold core block; 51, lower cavity groove; 6, pushing assembly; 7, positioning block; 8, first stopper; 81, inclined ejector rod; 9, second stopper; 91, straight ejector rod; 10, lower mold base; 11, lower mold core groove; 12, through hole; 13, connecting plate; 14, arc groove; 15, support block; 16, lower mold plate; 17, top plate; 18, ejector column; 19, support column; 20, spring; 21, gear, etc., it does not exclude the possibility of using other terms. The use of these terms is only for more convenient description and explanation of 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 CPVC stop valve injection mold, comprising an upper mold plate (1), characterized in that: An injection molding pipe (2) is provided downwardly in the middle of the upper mold plate (1), an upper mold base (3) is provided below the upper mold plate (1), and an upper mold core block (4) is installed in the middle of the upper mold base (3), a pushing assembly (6), a first stopper (8) and a second stopper (9) are provided on the lower peripheral side of the upper mold base (3), and a positioning block (7) is provided on the inner side of the pushing assembly (6), and an inclined ejector rod (81) and a straight ejector rod (91) are provided in the first stopper (8) and the second stopper (9), respectively; a lower mold core block (5) is provided below the upper mold core block (4), and the upper mold core block (4) and the lower mold core block (5) are pressed and disposed between the positioning block (7), the first stopper (8) and the second stopper (9), and the lower mold core block (5), the pushing assembly (6), the first stopper (8) and the second stopper (9) are provided. A lower die base (10) is provided below the stopper (8) and the second stopper (9), a gear (21) is provided below the pushing assembly (6), and the gear (21) is placed inside the two ends of the lower die base (10), a connecting plate (13) is provided below the lower die base (10), and the gear (21) is placed inside the upper part of the two ends of the connecting plate (13), support blocks (15) are provided on both sides below the connecting plate (13), and a lower mold plate (16) is provided below the support block (15), a top plate (17) and a support column (19) are provided in the middle part above the lower mold plate (16), and a spring (20) is provided on the outer sleeve above the support column (19), a top column (18) is provided above the top plate (17), and the top column (18) is inserted upward into the lower die core block (5).

2. The CPVC stop valve injection mold according to claim 1, characterized in that: The center of the upper mold plate (1) is inserted and fixedly connected to the injection molding pipe (2), the bottom of the upper mold plate (1) is fixedly connected to the upper mold base (3), and the middle of the upper mold base (3) passes through the injection molding pipe (2), and an upper mold core hole (31) is opened in the middle of the upper mold base (3), and an upper mold core block (4) is fixedly inserted into the upper mold core hole (31), and the bottom of the upper mold core block (4) is flush with the bottom of the upper mold base (3).

3. The CPVC stop valve injection mold according to claim 2, characterized in that: An upper cavity groove (41) is provided in the bottom of the upper mold core block (4), and the bottom of the upper cavity groove (41) is flush with the bottom of the injection molding tube (2), and the injection molding tube (2) is connected to the upper cavity groove (41). The bottom of the upper mold core block (4) is pressed with the lower mold core block (5), and a lower cavity groove (51) is provided in the top of the lower mold core block (5), and the lower cavity groove (51) and the upper cavity groove (41) are combined into a molding cavity.

4. The CPVC stop valve injection mold according to claim 3, characterized in that: The bottom of the upper die base (3) is pressed with two pushing components (6), a first stopper (8) and an upper part of the second stopper (9), and the two pushing components (6) are symmetrical on the same center line. At the same time, the two pushing components (6) and the first stopper (8) and the second stopper (9) form a cross shape. The bottom of the pushing component (6) is fixedly connected to the upper part of the lower die base (10), and the bottoms of the first stopper (8) and the second stopper (9) are slidably connected to the upper part of the lower die base (10).

5. The CPVC stop valve injection mold according to claim 4, characterized in that: A lower mold core groove (11) is provided in the middle of the lower mold base (10), and the bottom of the lower mold core block (5) is fixedly connected inside the lower mold core groove (11). The inner side of the pushing component (6) is slidably connected to the positioning block (7), and the protruding cylindrical end of the positioning block (7), the protruding cylindrical end of the first stop block (8) and the protruding cylindrical end of the second stop block (9) are all inserted into the molding cavity.

6. The CPVC stop valve injection mold according to claim 5, characterized in that: The first stopper (8) is fixedly connected to an inclined ejector rod (81) on its inner side, and the second stopper (9) is fixedly connected to a plurality of straight ejector rods (91) on its inner side. The upper parts of the inclined ejector rods (81) and the straight ejector rods (91) are both inserted into a sliding connection upper die seat (3).

7. The CPVC stop valve injection mold according to claim 6, characterized in that: Through holes (12) are provided on both sides of the lower die base (10); a connecting plate (13) is fixedly connected to the bottom of the lower die base (10); arc grooves (14) are provided on both sides of the connecting plate (13); a gear (21) is rotatably connected to the bottom of the pushing component (6); and the middle and bottom of the gear (21) are respectively placed in the through hole (12) and the arc groove (14).

8. The CPVC stop valve injection mold according to claim 7, characterized in that: The two sides of the bottom of the connection plate (13) are fixedly connected to the support blocks (15), the bottom of the support block (15) is fixedly connected to the lower template (16), a top plate (17) is placed in the middle of the lower template (16), and the top plate (17) is placed between the two support blocks (15) with a distance.

9. The CPVC stop valve injection mold according to claim 8, characterized in that: A plurality of support columns (19) are fixedly connected above the top plate (17), and the support columns (19) pass through the sliding connection top plate (17), while the tops of the support columns (19) are inserted into the bottom of the connecting plate (13), and the springs (20) are placed between the connecting plate (13) and the top plate (17).

10. The CPVC stop valve injection mold according to claim 9, characterized in that: A plurality of top columns (18) are fixedly connected inside the top plate (17), and the top columns (18) are inserted upward into the upper cavity groove (41), while the top of the top column (18) is flush with the bottom of the upper cavity groove (41).

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