CN220261798U

CN220261798U - High-density 360-degree waterfall type distribution multi-cavity injection mold

Info

Publication number: CN220261798U
Application number: CN202320683205.9U
Authority: CN
Inventors: 杨海天; 逄炜
Original assignee: Qinghai Haishihao Plastic Co ltd
Current assignee: Qinghai Haishihao Plastic Co ltd
Priority date: 2023-03-30
Filing date: 2023-03-30
Publication date: 2023-12-29
Anticipated expiration: 2033-03-30

Abstract

The utility model relates to the technical field of injection molds, and discloses a high-density 360-degree waterfall-type distributed multi-cavity injection mold, which solves the problems of large mold size and increased cost of a traditional mold plane layout mode for producing ultra-multi-cavity microminiature products.

Description

High-density 360-degree waterfall type distribution multi-cavity injection mold

Technical Field

The utility model belongs to the technical field of injection molds, and particularly relates to a high-density 360-degree waterfall-type distributed multi-cavity injection mold.

Background

With the rapid development of the injection molding industry, the requirements on the efficiency of injection molding production are higher and higher, and particularly, the requirements on the die of microminiature products with low surface quality requirements and low added value are changed from the production efficiency of a die 4 cavity 8 cavity or 24 cavity to a die 144 cavity or more. However, as the number of mold cavities increases, the length and width of the mold increases, so that the number of injection molding machines increases, and thus, a part manufacturer is required to put larger equipment to produce small products, the production cost of small parts is increased, and meanwhile, the production investment of small products is raised, so that the injection molding machine is not suitable for small manufacturers.

However, because the hot runner and the synchronous structure of the laminated mold have high cost and high production and maintenance difficulty, the laminated mold is not suitable for small injection molding factories, the traditional injection mold design mode needs to be changed, and the scheme is sought that the traditional cavity planarization arrangement can be improved into three-dimensional arrangement so as to reduce the length and width of the mold, and simultaneously, the thickness of the mold and the cost of the mold are controlled, so that the high-density 360-degree waterfall type multi-cavity injection mold is designed.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the utility model provides the high-density 360-degree waterfall type distributed multi-cavity injection mold, which effectively solves the problems of larger mold size and increased cost of the traditional mold plane layout mode for producing microminiature products with ultra-multiple cavity numbers.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a 360 waterfall formula of high density distribute multi-cavity injection mold, includes the back sign indicating number template, back sign indicating number template lower extreme inlays and is equipped with drive assembly, back die holder board is installed to back sign indicating number template upper end, back die holder board is inside to be inlayed and is equipped with the core section of thick bamboo, core section of thick bamboo lower part inlays and is equipped with T type uide bushing, the inside activity of T type uide bushing is equipped with reciprocating motion's tower side knockout pole, the sliding tray has been seted up to tower side knockout pole lower part, sliding tray and drive assembly movable fit, T type uide bushing lower extreme and drive assembly upper end one side contact, core section of thick bamboo outer end circumference distribution has ejecting unit, ejecting unit external connection has bullet piece subassembly, bullet piece subassembly outside has cup jointed the front mould cover board, front mould cover board upper end is connected with the front mould bedplate, front mould bedplate upper end is connected with the front mould template, front mould board lower extreme middle part is inlayed and is equipped with and pours the subassembly.

Preferably, the ejection unit comprises a spring needle movably embedded in the core barrel, a first spring is sleeved on one side of the outer part of the spring needle, one end of the first spring is connected with the spring needle, and the other end of the first spring is connected with the side wall of the inner part of the core barrel.

Preferably, the bullet piece subassembly includes the bullet piece, and the spout has been seted up to bullet piece one side, and the inside swing joint of spout has the draw runner, and the draw runner passes through the bolt to be connected with preceding die sleeve board, and the spring groove has been seted up to bullet piece upper end, and the inside inlaying of spring groove is equipped with the spring guide arm, and the outside second spring that has cup jointed of spring guide arm, and the second spring is located inside the spring groove, and the bullet piece lower extreme has first drag hook piece through the screw connection, and first drag hook piece one side is equipped with the second drag hook piece, and the second drag hook piece passes through the screw and is connected with the back die holder board.

Preferably, one side of the spring block is provided with a spring needle pressing plate, the spring needle pressing plate is connected with the outer wall of the core barrel through a screw, one end of the ejection unit penetrates through the spring needle pressing plate, and a product cavity is formed between the spring block and the spring needle pressing plate.

Preferably, the section of the elastic block is in a trapezoid structure with a narrow upper part and a wide lower part, the section of the sliding groove is in a T shape, and the sliding strip is matched with the sliding groove.

Preferably, the pouring assembly comprises six hot runner hot nozzles, cold runners are communicated with the lower ends of the six hot runner hot nozzles, branch runners are connected with the two sides of the outer part of the cold runner at equal distances, the branch runners on the two sides are arranged in a fishbone shape, and each branch runner is communicated with the corresponding product cavity.

Preferably, the driving assembly comprises a bottom plate, one side of the upper end of the bottom plate is provided with a driving piece, one end of the driving piece is connected with a W-shaped reciprocating driving guide rail, and the W-shaped reciprocating driving guide rail is movably matched with the tower-shaped lateral ejection rod through a sliding groove.

Preferably, the driving piece is one of a cylinder and a hydraulic cylinder, the surface of the W-shaped reciprocating driving guide rail is in a wave shape, and the upper end face of the W-shaped reciprocating driving guide rail is in contact with the lower end of the T-shaped guide sleeve.

Compared with the prior art, the utility model has the beneficial effects that:

(1) The utility model changes the ejection structure of the thimble plate of the traditional injection mold in the parallel demolding direction, adopts the tower-shaped lateral ejection rod structure with the cavity in annular arrangement in a reciprocating manner, changes the traditional layout mode of planar arrangement in product layout, and simultaneously, the product is three-dimensional arrangement, so that the die-holding space of the three-dimensional space in the length, width and height directions of the injection mold is utilized to the greatest extent;

(2) The utility model solves the problems of the length, width, thickness and other dimensions of the mould with one mould and multiple cavities by adopting the multi-row waterfall type arrangement of the mould cavities and the central multi-stage tower type reciprocating ejection structure, greatly reduces the mould locking force tonnage of the injection molding machine, and simultaneously avoids the problems of complex structure and high cost of the laminated mould, thereby greatly improving the production efficiency of microminiature products and reducing the production cost.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model, without limitation to the utility model.

In the drawings:

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

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

FIG. 3 is a schematic view of the elevation side structure of an exploded view of the present utility model;

FIG. 4 is a cross-sectional view of the present utility model;

FIG. 5 is a schematic view of the connection structure of the casting assembly of the present utility model;

FIG. 6 is a schematic view of the connection structure of the cartridge of the present utility model;

FIG. 7 is a schematic view of a spring block assembly according to the present utility model;

FIG. 8 is an exploded view of the spring block assembly of the present utility model;

FIG. 9 is a schematic view of a casting assembly according to the present utility model;

FIG. 10 is a schematic diagram of a driving assembly according to the present utility model;

FIG. 11 is a schematic view of the vertical arrangement of the ejector unit of the present utility model;

FIG. 12 is a schematic view of the structure of a tower-shaped side ejector rod of the present utility model;

FIG. 13 is a schematic plan view of an ejector unit according to the present utility model;

FIG. 14 is a schematic view of the structure of the ejector unit of the present utility model;

in the figure: 1. a post code template; 2. a drive assembly; 201. a bottom plate; 202. a driving member; 203. a W-shaped reciprocating drive guide rail; 3. a rear die holder plate; 4. a core barrel; 5. a T-shaped guide sleeve; 6. a tower-shaped lateral ejection rod; 7. an ejection unit; 701. a spring needle; 702. a first spring; 8. a spring block assembly; 801. a spring block; 802. a chute; 803. a slide bar; 804. a spring groove; 805. a spring guide rod; 806. a second spring; 807. a first retractor block; 808. a second drag hook block; 809. spring needle pressing plates; 810. a product cavity; 9. a front die sleeve plate; 10. a front mold base plate; 11. a preamble template; 12. pouring the assembly; 1201. a hot runner hot nozzle; 1202. a cold runner; 1203. branching flow channels; 13. a sliding groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model; all other embodiments, based on the embodiments of the utility model, which would be apparent to one of ordinary skill in the art without making any inventive effort are intended to be within the scope of the utility model.

The first embodiment is shown in fig. 1-14, the utility model comprises a back die plate 1, a driving component 2 is embedded at the lower end of the back die plate 1, a back die holder plate 3 is installed at the upper end of the back die plate 1, a core barrel 4 is embedded in the back die holder plate 3, a T-shaped guide sleeve 5 is embedded at the lower part of the core barrel 4, a tower-shaped lateral ejection rod 6 capable of reciprocating is movably arranged in the T-shaped guide sleeve 5, a sliding groove 13 is formed at the lower part of the tower-shaped lateral ejection rod 6, the sliding groove 13 is in movable fit with the driving component 2, the lower end of the T-shaped guide sleeve 5 is contacted with one side of the upper end of the driving component 2, ejection units 7 are circumferentially distributed at the outer end of the core barrel 4, an elastic block component 8 is externally connected with an elastic block component 8, a front die sleeve plate 9 is sleeved at the upper end of the front die holder plate 9, a front die holder plate 10 is connected with a front die plate 11, and a pouring component 12 is embedded at the middle part of the lower end of the front die plate 11.

In the second embodiment, based on the first embodiment, the ejection unit 7 includes a spring pin 701 movably embedded in the core barrel 4, and a first spring 702 is sleeved on one side of the outer portion of the spring pin 701, one end of the first spring 702 is connected with the spring pin 701, and the other end of the first spring 702 is connected with the inner side wall of the core barrel 4.

Based on the first embodiment, the spring block assembly 8 includes a spring block 801, a chute 802 is formed on one side of the spring block 801, a slide bar 803 is movably connected inside the chute 802, the slide bar 803 is connected with a front die sleeve plate 9 through a bolt, a spring groove 804 is formed at the upper end of the spring block 801, a spring guide bar 805 is embedded inside the spring groove 804, a second spring 806 is sleeved outside the spring guide bar 805, the second spring 806 is located inside the spring groove 804, a first drag hook block 807 is connected to the lower end of the spring block 801 through a screw, a second drag hook block 808 is arranged on one side of the first drag hook block 807, the second drag hook block 808 is connected with a rear die holder plate 3 through a screw, a needle pressing plate 809 is arranged on one side of the spring block 801 and connected with the outer wall of a core barrel 4 through a screw, one end of an ejection unit 7 penetrates through the needle pressing plate 809, a product cavity 810 is formed between the spring block 801 and the needle pressing plate 809, the cross section of the spring block 801 is in a trapezoid structure with a narrow upper part and a wide lower part, the cross section of the chute 802 is in a T shape, and the slide bar 803 is matched with the chute 802.

In the fourth embodiment, on the basis of the first embodiment, the pouring assembly 12 includes hot runner hot nozzles 1201, six hot runner hot nozzles 1201 are connected to cold runners 1202 at the lower ends of the six hot runner hot nozzles 1201, two sides of the exterior of the cold runner 1202 are connected with branch runners 1203 at equal distances, the branch runners 1203 at the two sides are arranged in a fishbone shape, and each branch runner 1203 is communicated with a corresponding product cavity 810;

in the utility model, 12 rows of products are uniformly distributed in the height direction of the device, a common flow channel, namely a cold flow channel 1202 is designed between every two rows of products, branch flow channels 1203 are uniformly arranged on two sides of each cold flow channel 1202, each branch flow channel 1203 corresponds to one product, and preferably, the distribution quantity can be set according to the size of a machine and the size of the products.

In the fifth embodiment, on the basis of the first embodiment, the driving assembly 2 includes a bottom plate 201, a driving member 202 is installed on one side of the upper end of the bottom plate 201, one end of the driving member 202 is connected with a W-shaped reciprocating driving guide rail 203, the W-shaped reciprocating driving guide rail 203 is movably matched with the tower-shaped lateral ejection rod 6 through a sliding groove 13, the driving member 202 is one of a cylinder or a hydraulic cylinder, the surface of the W-shaped reciprocating driving guide rail 203 is wavy, and the upper end surface of the W-shaped reciprocating driving guide rail 203 contacts with the lower end of the T-shaped guide sleeve 5;

the driving piece 202 on the driving assembly 2 stretches out to drive the W-shaped reciprocating driving guide rail 203 to move, and because the lower end of the tower-shaped lateral ejection rod 6 is in sliding fit with the W-shaped reciprocating driving guide rail 203, and the W-shaped reciprocating driving guide rail 203 is wavy, when the W-shaped reciprocating driving guide rail 203 is pushed to move, the tower-shaped lateral ejection rod 6 can be lifted upwards under the action of a wavy structure, at the moment, the tower-shaped lateral ejection rod 6 moves up and down in the T-shaped guide sleeve 5, and then the tower-shaped lateral ejection rod 6 extrudes the ejection unit 7, so that the spring needle 701 moves outwards to extrude a product, and the product is convenient to drop;

the device has changed the ejecting structure of parallel drawing of patterns direction of traditional injection mold's thimble board, has adopted annular die cavity reciprocating motion's tower side direction ejector rod structure of arranging, and product layout has changed traditional planar arrangement's overall arrangement mode, simultaneously, and the product is three-dimensional the arranging, makes the mould space of holding of the three-dimensional space of length width height three direction of injection molding machine obtain furthest utilization.

Working principle: when the front and rear dies of the die are closed, the seat plate of the rear die holder plate 3 pushes the elastic block assembly 8 forward, so that the elastic block 801 is pressed forward into the front die holder plate 10, at this time, the second springs 806 are compressed to generate a reaction force, then injection molding liquid is injected into cold channels 1202 below from hot runner hot nozzles 1201 on the pouring assembly 12 respectively, and then the injection molding liquid is discharged into corresponding product cavities 810 from branch channels 1203 on both sides of each cold channel 1202, so that products are molded;

then when the mold is opened, the pressure of the rear mold base plate 3 acting on the elastic block 801 disappears, the elastic block 801 is ejected out of the front shape of the product to be demolded after being inclined along the direction of the sliding strip 803 of the T-shaped structure under the action of the second spring 806 and the first drag hook block 807, and the first drag hook block 807 and the second drag hook block 808 mutually act when the mold is opened, so that the elastic block 801 is prevented from being blocked and not sliding to damage the mold.

Claims

1. The utility model provides a 360 waterfall of high density distribute many die cavities injection mold, includes back sign indicating number template (1), its characterized in that: the utility model provides a rear code template (1) lower extreme inlays and is equipped with drive assembly (2), rear die holder board (3) are installed to rear code template (1) upper end, rear die holder board (3) are inside to be inlayed and are equipped with core section of thick bamboo (4), core section of thick bamboo (4) lower part is inlayed and is equipped with T type uide bushing (5), T type uide bushing (5) inside activity is equipped with reciprocating motion's tower side ejector rod (6), sliding tray (13) have been seted up to tower side ejector rod (6) lower part, sliding tray (13) and drive assembly (2) clearance fit, T type uide bushing (5) lower extreme and drive assembly (2) upper end one side contact, core section of thick bamboo (4) outer end circumference distributes has ejecting unit (7), ejecting unit (7) external connection has bullet piece subassembly (8), bullet piece subassembly (8) outside has cup jointed preceding die sleeve board (9), preceding die sleeve board (9) upper end is connected with preceding die plate (10), preceding die plate (10) upper end is connected with preceding code template (11), preceding code template (11) lower extreme middle part is inlayed and is equipped with and is pour subassembly (12).

2. The high-density 360-degree waterfall-type distributed multi-cavity injection mold as claimed in claim 1, wherein: the ejection unit (7) comprises a spring needle (701) movably embedded in the core barrel (4), a first spring (702) is sleeved on one side of the outer portion of the spring needle (701), one end of the first spring (702) is connected with the spring needle (701), and the other end of the first spring (702) is connected with the side wall of the inner portion of the core barrel (4).

3. The high-density 360-degree waterfall-type distributed multi-cavity injection mold as claimed in claim 1, wherein: the spring block assembly (8) comprises a spring block (801), a sliding groove (802) is formed in one side of the spring block (801), a sliding bar (803) is movably connected inside the sliding groove (802), the sliding bar (803) is connected with a front die sleeve plate (9) through a bolt, a spring groove (804) is formed in the upper end of the spring block (801), a spring guide rod (805) is embedded in the spring groove (804), a second spring (806) is sleeved outside the spring guide rod (805), the second spring (806) is located inside the spring groove (804), a first drag hook block (807) is connected to the lower end of the spring block (801) through a screw, a second drag hook block (808) is arranged on one side of the first drag hook block (807), and the second drag hook block (808) is connected with a rear die base plate (3) through a screw.

4. A high density 360 ° waterfall distributed multi-cavity injection mold as claimed in claim 3 wherein: one side of the spring block (801) is provided with a spring needle pressing plate (809), the spring needle pressing plate (809) is connected with the outer wall of the core barrel (4) through a screw, one end of the ejection unit (7) penetrates through the spring needle pressing plate (809), and a product cavity (810) is formed between the spring block (801) and the spring needle pressing plate (809).

5. A high density 360 ° waterfall distributed multi-cavity injection mold as claimed in claim 3 wherein: the section of the elastic block (801) is in a trapezoid structure with a narrow upper part and a wide lower part, the section of the sliding groove (802) is in a T shape, and the sliding strip (803) is matched with the sliding groove (802).

6. The high-density 360-degree waterfall-type distributed multi-cavity injection mold as claimed in claim 1, wherein: the pouring assembly (12) comprises six hot runner hot nozzles (1201), cold runners (1202) are communicated with the lower ends of the six hot runner hot nozzles (1201), branch runners (1203) are connected with the two sides of the cold runner (1202) at equal distances, the branch runners (1203) on the two sides are arranged in a fishbone shape, and each branch runner (1203) is communicated with a corresponding product cavity (810).

7. The high-density 360-degree waterfall-type distributed multi-cavity injection mold as claimed in claim 1, wherein: the driving assembly (2) comprises a bottom plate (201), a driving piece (202) is installed on one side of the upper end of the bottom plate (201), one end of the driving piece (202) is connected with a W-shaped reciprocating driving guide rail (203), and the W-shaped reciprocating driving guide rail (203) is movably matched with the tower-shaped lateral ejection rod (6) through a sliding groove (13).

8. The high-density 360-degree waterfall-type distributed multi-cavity injection mold of claim 7, wherein: the driving piece (202) is one of an air cylinder and a hydraulic cylinder, the surface of the W-shaped reciprocating driving guide rail (203) is wavy, and the upper end face of the W-shaped reciprocating driving guide rail (203) is contacted with the lower end of the T-shaped guide sleeve (5).