CN218966053U

CN218966053U - Forming die of rack bushing

Info

Publication number: CN218966053U
Application number: CN202223612681.6U
Authority: CN
Inventors: 张志鸿; 黎新平; 叶适建
Original assignee: Faweilai Technology Ningbo Co ltd
Current assignee: Faweilai Technology Ningbo Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-05-05
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses a forming die of a rack bushing, which comprises a fixed die plate and a movable die plate, wherein the fixed die plate is provided with a fixed die core, the movable die plate is provided with a movable die core, the movable die core is provided with a movable die block capable of moving up and down, a movable die column is inserted in the center position of the movable die core and the movable die block, a first sliding block and a second sliding block which are in sliding connection are respectively arranged on the left side and the right side of the movable die column, a closed area, namely a cavity, is formed when the first sliding block, the second sliding block, the movable die column, the fixed die core and the movable die block are clamped, the first sliding block and the second sliding block are respectively provided with a first inclined pushing rod and a second inclined pushing rod for pushing the movable die core to move respectively, and a time delay pushing structure is arranged between the second inclined pushing rod and the second sliding block. The utility model has the advantages that the first sliding block can be separated from the cavity in a first step through the time-delay pushing structure, and then the second sliding block is separated from the cavity, so that the product is prevented from being carried out, the product is prevented from being deformed and scrapped, the structure is simple, the manufacture is convenient, and the cost is reduced.

Description

Forming die of rack bushing

Technical Field

The utility model relates to the field of injection molds, in particular to a forming mold of a rack bushing.

Background

As shown in fig. 1, the rack bushing has a hollow cylindrical structure, a clamping block 01 is arranged on the side wall of the cylindrical structure, a notch 02 is arranged on the other side symmetrical to the clamping block, and when a product is molded, demolding is needed, however, due to the existence of the notch, the sliding block brings the product out, so that the structural form of the product is damaged, the product is scrapped, and in order to ensure that the product structure can be demolded smoothly, the design of the demolding structure is generally complicated, the manufacturing cost is high, and the improvement of technicians is needed.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a forming die for a rack bushing, which is used for solving the problem of demolding of products, and has the advantages of simple structure, low manufacturing cost and capability of ensuring that the products can be demolded smoothly.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a forming die of rack bush, includes fixed die plate, movable mould board, the fixed die plate be provided with the cover half benevolence, the movable mould board be provided with the movable mould benevolence, the movable mould benevolence be provided with the movable mould piece that reciprocates, the central point of movable mould benevolence and movable mould piece put and insert and be equipped with the movable mould post, the lower extreme and the movable mould board fixed connection of movable mould post are located the left and right sides of movable mould post and are provided with sliding connection's first slider and second slider respectively, constitute a confined region when first slider, second slider, movable mould post, cover half benevolence, movable mould piece compound die, namely the die cavity, first slider, second slider be provided with first oblique push rod, the second oblique push rod that is used for promoting the respective removal respectively, second oblique push rod and second slider between be provided with time delay lapse structure.

By adopting the structure, the unique novelty is reflected in that a time delay pushing structure is adopted between the second inclined pushing rod and the second sliding block, the structure is simple to manufacture, the effect is good, the mold can be well helped when being demolded, the product is protected from being damaged, and the mold can be demolded smoothly.

As a further improvement of the utility model, the delay pushing structure comprises a guide hole in the second sliding block and a cylinder in the second oblique pushing rod, wherein the guide hole is in sliding connection with the cylinder.

As a further improvement of the utility model, the cross section of the guide hole is in a kidney-shaped, the cross section of the column body is in a round shape, the round shape is positioned in the kidney-shaped, and a time delay interval A is arranged between the rightmost end of the kidney-shaped and the rightmost end of the round shape.

As a further improvement of the utility model, the size range of the delay interval A is 6.5-10 mm.

As a further improvement of the utility model, the upper end of the cylinder is provided with a bulge which is integrally formed with the cylinder, the bulge is inserted into the fixed die plate and is fixedly connected through the hot runner plate, and the lower end of the cylinder is provided with a smooth part.

As a further improvement of the utility model, the front end of the first sliding block is provided with a clamping forming part, the clamping forming part is attached to the cavity, the front end of the second sliding block is provided with a notch forming part, and the notch forming part is attached to the cavity.

As a further improvement of the utility model, a cooling water pipe fitting is arranged at the center of the movable die column, the cooling water pipe fitting is provided with a cooling water channel, and the cooling water channel is spirally arranged by taking the outer cylinder of the movable die column as a reference.

As a further improvement of the utility model, the movable mould plate is inserted with a thimble capable of moving up and down, the thimble is provided with a push plate capable of pushing the thimble to move, the push plate is fixedly provided with a push rod capable of pushing the movable mould block, the upper end of the push rod is fixedly connected with the movable mould block through bolts, two mould legs for supporting the mould are arranged at two sides of the push plate, and lower mounting plates are fixedly arranged at the lower ends of the two mould legs.

As a further improvement of the utility model, the upper end of the hot runner plate is provided with an upper mounting plate which is fixedly connected, the center of the upper mounting plate is provided with a feeding hole, and the feeding hole is communicated with the cavity.

Compared with the prior art, the utility model has the advantages of simple structure and convenient manufacture, and the first sliding block is separated from the cavity by one step and then the second sliding block is separated from the cavity by the delay structure arranged between the second inclined pushing rod and the second sliding block, so that the product is prevented from being taken out and scrapped. In the structure, the movable mould plate is provided with the movable mould core, the movable mould core is provided with the movable mould block capable of moving up and down, when demoulding, the movable mould block can push the whole product upwards, so that the product is not deformed, the first sliding block and the second sliding block are respectively used for forming the clamping block and the notch of the product, and a time delay pushing structure is arranged between the second inclined pushing rod and the second sliding block, so that the first sliding block can be separated from the cavity in advance, and then the second sliding block is separated, so that the notch of the product is not deformed, and the quality is improved.

Drawings

FIG. 1 is a schematic view of a rack bushing;

FIG. 2 is an exploded view of the present utility model;

FIG. 3 is a schematic cross-sectional view of the present utility model;

FIG. 4 is a schematic cross-sectional view of a second slider;

fig. 5 is a schematic structural diagram of the first slider and the second slider.

The reference numerals in the figures illustrate:

01. a clamping block; 02. a notch; 1. a stationary mold plate; 2. a movable template; 3. a fixed mould core; 4. a movable mold core; 5. a movable module; 6. a movable mold column; 7. a first slider; 8. a second slider; 9. a first oblique pushing rod; 10. a second oblique pushing rod; 11. a delay structure; 12. a hot runner plate; 13. a cooling water pipe fitting; 14. a thimble; 15. a push plate; 16. a push rod; 17. a mold foot; 18. a lower mounting plate; 19. an upper mounting plate; 20. a feed hole;

71. a clamping forming part; 81. a guide hole; 82. a notch forming part; 101. a column; 102. a boss; 103. a round part; 131. and cooling the water channel.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1 to 5, there is shown: the utility model provides a forming die of rack bush, including fixed die plate 1, movable die plate 2, fixed die plate 1 is provided with the cover half benevolence 3, movable die plate 2 is provided with movable die benevolence 4, movable die benevolence 4 is provided with movable module 5 that can reciprocate, movable die post 6 has been inserted to movable die benevolence 4 and movable die 5's central point put, movable die post 6's lower extreme and movable die plate 2 fixed connection, be located movable die post 6's left and right sides and be provided with sliding connection's first slider 7 and second slider 8 respectively, first slider 7, second slider 8, movable die post 6, cover half benevolence 3, constitute a confined region when movable module 5 compound die, namely the die cavity, first slider 7, second slider 8 are provided with respectively and are used for promoting the first push rod 9 that moves respectively, the second push rod 10 pushes away to one side, be provided with between second push rod 10 and the second slider 8 and time delay structure 11.

Further, in the above structure, the fixed mold plate 1, the fixed mold core 3, the movable mold plate 2 and the movable mold core 4 are all commonly used accessories in the mold, and are well known to the skilled person, and no excessive explanation is needed here.

Furthermore, in the present embodiment, the only novelty is the delay structure 11 disposed between the second inclined pushing rod 10 and the second sliding block 8, and the delay structure designed by the general mold is more complex, however, the delay structure 11 described in the present utility model is simple, convenient to manufacture, and low in cost.

The delay pushing structure 11 comprises a guide hole 81 positioned in the second sliding block 8 and a cylinder 101 positioned in the second inclined pushing rod 10, wherein the guide hole 81 is in sliding connection with the cylinder 101.

Further, in the above structure, the basic action of time delay is realized by the mutual cooperation of the guide hole 81 and the column body 101, so that the normal and reliable operation is ensured, and meanwhile, the structure strength is enough.

The cross section of the guide hole 81 is in a waist-round shape, the cross section of the cylinder 101 is in a round shape, the round shape is positioned in the waist-round shape, and a time delay interval A is arranged between the rightmost end of the waist-round shape and the rightmost end of the round shape.

Further, the waist circle of the guide hole 81 is matched with the circle of the column body 101, and a time delay interval A is arranged between the rightmost end of the waist circle and the rightmost end of the circle, when the column body 101 moves upwards for demoulding, a neutral period of a certain distance is generated due to the existence of the time delay interval A, so that the second sliding block 8 is kept in a fixed state within the certain distance.

The size range of the delay interval A is 6.5-10 mm.

Further, there is a size range to determine the delay interval a, which is converted into the distance of upward movement of the cylinder 101, so as to ensure when the second slider 8 will move, and have a stable rule, so as to ensure smooth demolding of the product.

The upper end of the column 101 is provided with a boss 102 integrally formed therewith, the boss 102 is inserted into the fixed mold plate 1 and fixedly connected through the hot runner plate 12, and the lower end of the column 101 is provided with a round part 103.

Further, a protruding portion 102 is arranged at the upper end of the column body 101, so that the column body 101 is conveniently and fixedly connected with the fixed template 1, and a smooth portion 103 is arranged at the lower end of the column body 101, so that the column body 101 is conveniently inserted into the guide hole 81.

The front end of the first sliding block 7 is provided with a clamping forming part 71, the clamping forming part 71 is attached to the cavity, the front end of the second sliding block 8 is provided with a notch forming part 82, and the notch forming part 82 is attached to the cavity.

Further, the clamping forming part 71 located in the first sliding block 7 and the notch forming part 82 located in the second sliding block 8 are respectively used for forming the clamping block 01 and the notch 02 of the product, so that smooth forming of the product is ensured.

The center position of the movable mold column 6 is provided with a cooling water pipe fitting 13, the cooling water pipe fitting 13 is provided with a cooling water channel 131, and the cooling water channel 131 is spirally arranged by taking the outer cylinder 101 of the movable mold column 6 as a reference.

Further, in the above structure, the cooling water pipe fitting 13 is disposed in the movable mold column 6, and the cooling water channel 131 is disposed in the cooling water pipe fitting 13, which is mainly used for rapid cooling after product molding, and improves the working efficiency.

The movable template 2 is inserted with a thimble 14 capable of moving up and down, the thimble 14 is provided with a push plate 15 capable of pushing the thimble to move, the push plate 15 is fixedly provided with a push rod 16 capable of pushing the movable module 5, the upper end of the push rod 16 is fixedly connected with the movable module 5 through bolts, two die legs 17 for supporting a die are arranged on two sides of the push plate 15, and lower mounting plates 18 are fixedly arranged at the lower ends of the two die legs 17.

Further, in the above structure, the ejector pin 14 and the ejector rod 16 are driven by the push plate 15 to move upwards simultaneously, so that the ejector pin is mainly used for demolding of products, smooth demolding of the products is ensured, the die feet 17 are used for supporting normal operation of the die, and the lower mounting plate 18 facilitates assembly of the lower half part of the die and equipment.

The upper end of the hot runner plate 12 is provided with a fixedly connected upper mounting plate 19, a feeding hole 20 is arranged in the center of the upper mounting plate 19, and the feeding hole 20 is communicated with the cavity.

Further, in the above structure, the main function of the upper mounting plate 19 is to facilitate the assembly of the upper half of the mold with the apparatus, and the molten raw material is injected into the cavity through the feed hole 20, so that the raw material is quickly filled into the cavity.

The working principle of the utility model is as follows: when the first slide block 7, the second slide block 8, the movable mould column 6, the movable mould block 5 and the fixed mould core 3 are assembled, a closed area, namely a cavity, is formed and used for forming the rack bushing, and after the rack bushing is formed and cooled, demoulding treatment is needed.

During demolding, the fixed template 1 and the fixed mold core 3 move upwards simultaneously, firstly, the first inclined pushing rod 9 drives the first sliding block 7 to deviate from the cavity to move, smooth demolding of the clamping block 01 is achieved, when the to-be-determined template 1 and the fixed mold core 3 move upwards continuously, the second inclined pushing rod 10 drives the second sliding block 8 to move upwards, compared with the movement of the first sliding block 7, a little slower movement is achieved, the purpose of the structural design is to protect products, the first sliding block 7 is used for preventing the products from being carried out in the demolding process, the products are prevented from being damaged, when the second sliding block 8 is completely retreated from the cavity, the push plate 15 is pushed under the action of equipment, and the push plate 15 drives the ejector pins 14 and the ejector pins 16 to move upwards simultaneously, so that the whole products can be demolded smoothly.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The utility model provides a forming die of rack bush, includes fixed die plate (1), movable mould board (2), fixed die plate (1) be provided with cover half benevolence (3), movable mould board (2) be provided with movable mould benevolence (4), its characterized in that movable mould benevolence (4) be provided with movable mould piece (5) that can reciprocate, movable mould benevolence (4) and movable mould piece (5) central point put and insert and be equipped with movable mould post (6), the lower extreme and movable mould board (2) fixed connection of movable mould post (6), be located movable mould post (6) the left and right sides respectively be provided with sliding connection's first slider (7) and second slider (8), first slider (7), second slider (8), movable mould post (6), cover half benevolence (3), movable mould piece (5) constitute a confined region when the compound die, first slider (7), second slider (8) be provided with respectively and be used for promoting first diagonal bar (9), second diagonal bar (10) that move respectively, second diagonal bar (10) are provided with between the second diagonal bar (11).

2. The forming die of the rack bushing according to claim 1, wherein the delay structure (11) comprises a guide hole (81) in the second slider (8) and a cylinder (101) in the second inclined pushing rod (10), and the guide hole (81) is slidably connected with the cylinder (101).

3. A rack bushing forming die according to claim 2, characterized in that the cross section of the guide hole (81) is in the shape of a kidney, the cross section of the cylinder (101) is in the shape of a circle, the circle is located in the shape of a kidney, and a delay interval a is provided between the rightmost end of the kidney and the rightmost end of the circle.

4. The forming die for the rack bushing according to claim 3, wherein the delay distance A is in a size range of 6.5-10 mm.

5. The forming die of the rack bushing according to claim 2, characterized in that the upper end of the cylinder (101) is provided with a boss (102) integrally formed therewith, the boss (102) is inserted into the fixed die plate (1) and fixedly connected through the hot runner plate (12), and the lower end of the cylinder (101) is provided with a round part (103).

6. The forming die of the rack bushing according to claim 1, wherein the front end of the first slider (7) is provided with a clamping forming portion (71), the clamping forming portion (71) is attached to the cavity, the front end of the second slider (8) is provided with a notch forming portion (82), and the notch forming portion (82) is attached to the cavity.

7. The forming die of the rack bushing according to claim 1, wherein a cooling water pipe fitting (13) is arranged at the center of the movable die column (6), the cooling water pipe fitting (13) is provided with a cooling water channel (131), and the cooling water channel (131) is spirally arranged with an outer cylinder (101) of the movable die column (6) as a reference.

8. The forming die of the rack bushing according to claim 1, characterized in that the movable die plate (2) is inserted with a thimble (14) capable of moving up and down, the thimble (14) is provided with a push plate (15) capable of pushing the thimble to move, the push plate (15) is fixedly provided with a push rod (16) capable of pushing the movable die block (5), the upper end of the push rod (16) is fixedly connected with the movable die block (5) through bolts, two die legs (17) for supporting the die are arranged on two sides of the push plate (15), and lower mounting plates (18) are fixedly arranged at the lower ends of the two die legs (17).

9. The forming die of the rack bushing according to claim 5, wherein an upper mounting plate (19) fixedly connected with the upper end of the hot runner plate (12) is arranged, a feeding hole (20) is arranged in the center of the upper mounting plate (19), and the feeding hole (20) is communicated with the cavity.