CN220095419U - Deep hole detection box injection mold secondary ejection mechanism - Google Patents

Abstract

The utility model discloses a secondary ejection mechanism of an injection mold of a deep hole detection box, which comprises an A plate, a push plate, a fixed plate, a square iron I, a square iron II, an ejector pin panel, an ejector pin bottom plate, a guide rod I, a guide rod II, an ejector pin I, an ejector pin II, an ejector pin III, an ejector pin IV, an ejector block, a top plate I, a top plate II, an insert pin base, a rear mold insert pin, a deep hole detection box, a rear mold II, a rear mold I, a front mold I and a front mold II. The injection molding machine is used for injection molding of deep hole injection products with high length-diameter ratio, the deep hole detection box is driven by the top plate to move to complete first ejection, separation of the insert pin and the products is achieved, the ejector pin pushes the deep hole detection box upwards to complete second ejection, demolding of the products is achieved, scraping between the products and the mold can be avoided, defective rate of the products is effectively reduced, and injection molding production efficiency is improved.

Description

Deep hole detection box injection mold secondary ejection mechanism

Technical Field

The utility model relates to a secondary ejection mechanism of an injection mold of a deep hole detection box, which is used for injection molding of deep hole injection products with high length-diameter ratio.

Background

The product demoulding is realized by using an ejection mechanism in injection molding production, a deep hole structure is designed for detection box products, the ejection of common injection molding products can be realized by using a traditional ejection mechanism, but the ejection process and the scraping of the insert needle are easy to occur due to insufficient guiding precision for deep hole structure products, a novel ejection mechanism is required to be developed, smooth demoulding of the products during mould opening is ensured, and the insert needle is accurate to reset during mould closing.

Disclosure of Invention

The deep hole detection box injection mold secondary ejection mechanism comprises an A plate, a push plate, a fixed plate, a square iron I, a square iron II, a thimble panel, a thimble bottom plate, a guide rod I, a guide rod II, a thimble I, a thimble II, a thimble III, a thimble IV, a ejector block, a top plate I, a top plate II, a thimble base, a rear mold insert, a deep hole detection box, a rear mold II, a rear mold I, a front mold I and a front mold II, wherein the deep hole detection box is provided with a high length-diameter ratio structure, one ends of the thimble I, the thimble II, the thimble III and the thimble IV are fixedly arranged on the thimble panel, the other ends of the thimble I, the thimble II, the thimble III and the thimble IV sequentially penetrate through the fixed plate, the thimble base and the rear mold insert and are respectively inserted into four square holes formed in the rear mold I, the lower ends of the top plate I and the top plate II penetrate through the thimble panel and are fixedly arranged on the thimble bottom plate, the upper ends of the first top plate and the second top plate sequentially pass through a fixed plate, a push plate and an A plate, the lower ends of a push block pass through a thimble panel and are fixedly arranged on a thimble bottom plate, the left end and the right end of the push block are respectively and fixedly connected with the first top plate and the second top plate, the lower ends of an insert needle base are fixedly arranged in square grooves which are formed on the fixed plate and have the same shape, the upper ends of the insert needle base are matched with the grooves on the lower end surfaces of a rear mold insert, the rear mold insert is matched and arranged in the second rear mold, the lower ends of the rear mold insert are fixedly arranged in square grooves which are formed on the fixed plate and have the same shape, four sides of the rear mold insert are respectively provided with four rows of rolling shafts so as to reduce the friction force of relative movement between the second rear mold insert and the second top plate and improve the movement stability, the left end and the right end of the second rear mold insert are respectively and fixedly connected with the first top plate and the second top plate, the lower end grooves of the first rear mold insert are matched and the second rear mold are respectively and fixedly connected with the left side and right side of the first top plate and the second top plate, the front mould I is fixedly arranged on the plate A, the lower end of the front mould II passes through the front mould and is matched with the rear mould I, the lower end of the rear mould insert needle is fixedly arranged on the insert needle base, the upper end of the rear mould insert needle sequentially passes through the rear mould insert and the rear mould to be matched and arranged in a deep hole formed in the lower end of the front mould II, the rear mould insert is corresponding to a deep hole cavity of the deep hole detection box, the thimble bottom plate is matched and arranged on the bottom plate, the thimble panel is matched and arranged on the periphery of the thimble bottom plate in a flush manner, the lower ends of the square iron I and the square iron II are fixedly arranged on the bottom plate, the upper ends of the square iron I and the square iron II are fixedly connected to the fixing plate, one ends of the guide rod I and the guide rod II are fixedly arranged on the bottom plate, the other ends of the guide rod I and the guide rod II sequentially penetrate through the thimble bottom plate and are fixedly connected with the fixing plate, the thimble bottom plate and the thimble bottom plate can move up and down along the guide rod I and the guide rod II, the push plate is matched and arranged on the periphery of the plate A plate and the push plate in a flush manner.

The beneficial effects of the utility model are as follows: the deep hole detection box injection mold secondary ejection mechanism drives the deep hole detection box to move through the top plate to complete the first ejection, separation of the insert pin and the product is achieved, the ejector pin ejects the deep hole detection box upwards to complete the second ejection, product demolding is achieved, scraping between the product and the mold can be avoided, product reject ratio is effectively reduced, and injection molding production efficiency is improved.

Drawings

Fig. 1 is a schematic diagram of the whole structure of an injection mold of a deep hole detection box.

Fig. 2 is a schematic view of a partial structure of a secondary ejection mechanism.

Fig. 3 is a schematic view of a partial structure of a secondary ejection mechanism.

Fig. 4 is a schematic structural diagram of a deep hole detection box.

Fig. 5 is a schematic view of a partial structure of a secondary ejection mechanism.

Fig. 6 is a schematic view of a partial structure of a secondary ejection mechanism.

Fig. 7 is a schematic view of a partial structure of a secondary ejection mechanism.

Fig. 8 is a cross-sectional view taken along the A-A plane of fig. 7.

Fig. 9 is a schematic diagram of a front mold structure.

Fig. 10 is a schematic view of a rear mold.

Fig. 11 is a schematic view of a fixing plate structure.

FIG. 12 is a schematic view of a thimble panel.

Fig. 13 is a schematic diagram showing the relative positions of the rear mold insert pin and the deep hole detection box during the first ejection.

Wherein: 1. a plate A; 2. a push plate; 3. a fixing plate; 4. square iron I; 5. square iron II; 6. a thimble panel; 7. a thimble bottom plate; 8. a bottom plate; 9. a guide stick I; 10. a guide stick II; 11. a thimble I; 12. a thimble II; 13. a third thimble; 14. a thimble IV; 15. a top block; 16. a first top plate; 17. a second top plate; 18. a needle inserting base; 19. a rear mould is inlaid with a needle; 20. a rear mold insert; 21. a deep hole detection box; 22. a second rear die; 23. a first rear mold; 24. a first front mold; 25. and a front mold II.

Detailed Description

As shown in the accompanying drawings 1-13, the secondary ejection mechanism of the injection mold of the deep hole detection box comprises an A plate 1, a push plate 2, a fixed plate 3, a square iron I4, a square iron II 5, an ejector pin panel 6, an ejector pin bottom plate 7, a bottom plate 8, a guide rod I9, a guide rod II 10, an ejector pin I11, an ejector pin II 12, an ejector pin III 13, an ejector pin IV 14, an ejector block 15, a top plate I16, a top plate II 17, an insert needle base 18, a rear mold insert 19, a rear mold insert 20, a deep hole detection box 21, a rear mold II 22, a rear mold I23, a front mold I24 and a front mold II 25.

As shown in fig. 5 and 13, the deep hole portion of the deep hole detection box 21 has a high aspect ratio, and the rear mold insert 19 corresponds to the internal cavity of the deep hole portion of the deep hole detection box 21.

As shown in fig. 1 to 13, when the mold is opened, the a plate 1 moves upwards and away from the push plate 2, the first front mold 24 and the a plate 1 move upwards and are separated from contact with the first rear mold 23, the first front mold 24 moves upwards to drive the second front mold 25 to move upwards and separate from contact with the deep hole detection box 21, the ejector pin bottom plate 7 and the ejector pin panel 6 move upwards to drive the ejector pins 11, the ejector pins 12, the ejector pins 13, the ejector pins 14, the ejector block 15, the top plate 16 and the top plate 17 to move upwards, the first top plate and the second top plate move upwards to drive the second rear mold 22 and the first rear mold 23 to move upwards, in the process, the rollers on the first rear mold insert 20 rotate to guide and reduce the friction force between the first rear mold insert 20 and the second rear mold 22, the upward movement of the rear mold 23 drives the deep hole detection box 21 to move upwards relative to the rear mold insert 19, after the ejector pins 15 contact the fixed plate 3, the ejector pins 7, the ejector pins 15, the ejector pins 16 and the top plate 17 stop moving upwards, the ejector pins 19 are ejected from the middle-lift out of the detection box 21, the ejector pins 6 are ejected for the first time, the ejector pins 6 and the ejector pins 6 move upwards to the first ejector pins 12 and the second ejector pins 13 are ejected out of the deep hole detection box 21, and the first ejector pins 12 and the second ejector pins are ejected up to complete, and the first ejector pins are ejected from the deep hole detection box and the top plate 13 and the second ejector pins are completely and separated from the deep hole detection box 21 and the top is completely moved.

After the injection molding cycle is completed, the ejector pin panel 6 drives the ejector pin I11, the ejector pin II 12, the ejector pin III 13 and the ejector pin IV 14 to move downwards, and after the ejector pin panel 6 contacts the ejector pin bottom plate 7, the ejector pin bottom plate 7 and the ejector pin panel 6 simultaneously move downwards to drive the ejector block 15, the ejector plate I16, the ejector plate II 17, the rear die II 22 and the rear die I23 to move downwards to an initial die clamping position, and the plate A1 moves downwards to be in matched contact with the push plate 2 and drives the front die I24 and the front die II 25 to move downwards to the initial die clamping position so as to prepare for the next injection molding cycle.

The mechanism aims at the problem that in the demoulding process of the injection molding product with the deep hole structure, the deep hole product and the insert with the high length-diameter ratio are easy to scratch to cause the surface of the product, the product is ejected in two stages to finish the demoulding, and the roller is arranged in the mechanism to ensure the accuracy and stability of the ejection action, so that the product quality and the injection molding production efficiency can be improved.

The foregoing is illustrative of the present utility model and is not to be construed as limiting thereof.

Claims (1)

1. The utility model provides a deep hole detection box injection mold secondary ejection mechanism, including A board (1), push pedal (2), fixed plate (3), square iron one (4), square iron two (5), thimble panel (6), thimble bottom plate (7), bottom plate (8), guide rod one (9), guide rod two (10), thimble one (11), thimble two (12), thimble three (13), thimble four (14), ejector block (15), roof one (16), roof two (17), inlay needle base (18), back mould inlay needle (19), back mould mold insert (20), deep hole detection box (21), back mould two (22), back mould one (23), front mould one (24) and front mould two (25), characterized in that, have high length-diameter ratio deep hole structure on the deep hole detection box (21), thimble one end fixed mounting in panel (6) of thimble one (11), thimble two (12), thimble three (13) and thimble four (14), thimble one (11), thimble two (12), three (13) and four (14) the other end runs through fixed plate (3), back mould inlay needle (18) and back mould inlay needle (19) in proper order and inserts in square mould one (16) and sets up in the top plate one after the back mould one (20, respectively, the lower end of a top plate II (17) passes through the thimble panel (6) and is fixedly arranged on the thimble bottom plate (7), the upper ends of the top plate I (16) and the top plate II (17) sequentially pass through the fixed plate (3), the push plate (2) and the A plate (1), the lower end of the push block (15) passes through the thimble panel (6) and is fixedly arranged on the thimble bottom plate (7), the left and right ends of the push block (15) are respectively and fixedly connected with the top plate I (16) and the top plate II (17), the lower ends of the needle base (18) are fixedly arranged in square grooves which are formed on the fixed plate (3) and are consistent with the shape of the needle base, the upper ends of the needle base (18) are matched with the lower end surface grooves of a rear mold insert (20), the rear mold insert (20) is matched and arranged in the rear mold II (22), the lower ends of the rear mold insert (20) are fixedly arranged in square grooves which are formed on the fixed plate (3), four rows of rollers are respectively arranged on the four sides of the rear mold insert (20) so as to reduce the friction between the rear mold II (22) and the rear mold insert (20) and improve the relative motion stability, the left and right ends of the rear mold insert (16) are respectively connected with the left and right ends of the top plate II (17) and the top plate II (23) respectively, the front mould I (24) is fixedly arranged on the A plate (1), the lower end of the front mould II (25) passes through the front mould I (24) and is matched with the rear mould I (23), the lower end of the rear mould insert needle (19) is fixedly arranged on the insert needle base (18), the upper end of the rear mould insert needle (19) sequentially passes through the rear mould insert (20), the rear mould I (23) and is matched and arranged in a deep hole formed in the lower end of the front mould II (25), the rear mould insert needle (19) corresponds to a deep hole cavity of the deep hole detection box (21), the ejector pin base plate (7) is matched and arranged on the bottom plate (8), the ejector pin panel (6) is matched and arranged with the periphery of the ejector pin base plate (7), the lower ends of the square iron I (4) and the square iron II (5) are fixedly arranged on the bottom plate (8), the upper ends of the square iron I (4) and the square iron II (5) are fixedly connected with the fixed plate (3), one end of the guide rod I (9) and one end of the guide rod II (10) is fixedly arranged on the bottom plate (8), the other end of the guide rod II (10) is matched and arranged on the ejector pin panel (6) along the periphery of the ejector pin base plate (3) in a matched and arranged on the ejector pin base plate (7) in a matched mode, the A plate (1) is flush and matched with the periphery of the push plate (2).