CN108127860B

CN108127860B - L-shaped nozzle mold

Info

Publication number: CN108127860B
Application number: CN201711385091.5A
Authority: CN
Inventors: 陈增宝; 韩双能; 任诚芬; 汪海滨; 宦昌虎
Original assignee: Anhui Ningguo Zhongding Mould Manufacture Co Ltd
Current assignee: Anhui Ningguo Zhongding Mould Manufacture Co Ltd
Priority date: 2017-12-20
Filing date: 2017-12-20
Publication date: 2020-04-10
Anticipated expiration: 2037-12-20
Also published as: CN108127860A

Abstract

The invention discloses an L-shaped nozzle mould, which comprises a mould body; the device comprises a panel, a water gap push plate, a front template, a push plate, a rear template, an inner mold, a mold core, a slide block and an oil cylinder; the inner mold is arranged between the front template and the push plate, the mold cores extend into the mold cavity from two sides of the L-shaped mold cavity and are abutted against each other, the slide block is fixedly connected with one end of the mold core, the oil cylinder drives the slide block to move so as to drive the mold core to move in the mold cavity, the inner mold is provided with a plurality of mold cavities, a plurality of products can be produced by opening the mold once in the production process, and the production efficiency is improved; by controlling the die opening sequence and the slider core pulling sequence of the inner die in the die opening process, the L-shaped nozzle cannot be pulled and walks by the die core in the core pulling process, the ripple position is not pulled and torn by pulling, and the TPV soft rubber adhesion walking position is prevented from causing the product to be incapable of automatic demoulding.

Description

L-shaped nozzle mold

Technical Field

The invention relates to the technical field of dies, in particular to an L-shaped nozzle die

Background

The automobile industry injection molding product occupies a large proportion, for guaranteeing normal work of an air conditioning system, the drain pipe assembly is particularly important, the L-shaped nozzle is the primary part of the drain pipe assembly, in order to improve the product forming quantity and the product qualification rate, when a novel L-shaped nozzle mould structure is designed, a mould multi-cavity product is an effective means for improving the production efficiency, the traditional design is that the product is formed by erecting, and the product can be formed by three slide positions except an upper mould and a lower mould. The line position molding in three different directions, like this mould under the certain condition of injection molding machine tonnage, can only design 1 out 1 or 1 out 2's rank position scheme to L type bellows of this design is last lower mould die sinking direction, and the line position space is little, can't design the structure of control bellows by the tensile deformation and tear under the prerequisite that mould intensity must satisfy.

Disclosure of Invention

In order to solve the technical problems in the background art, the invention provides an L-shaped nozzle mold

The invention provides an L-shaped nozzle mould, which comprises a mould body and a mould cover, wherein the mould cover is provided with a cavity; the device comprises a panel, a water gap push plate, a front template, a push plate, a rear template, a thimble panel, a bottom plate, an inner mold, a mold core, a slide block and an oil cylinder;

the panel, the water gap push plate and the front template are assembled in sequence, a main runner is arranged on the panel, a pouring gate is arranged on the water gap push plate, and a sub-runner is arranged on the front template; the push plate, the rear template, the thimble panel and the bottom plate are assembled in sequence, and the inner side of the thimble panel is provided with a mandril; the front template is abutted against the push plate, and the inner mold and the mold core are assembled between the front template and the push plate;

the inner mold comprises a first inner module, a second inner module, a third inner module and a fourth inner module, the first inner module and the third inner module are respectively positioned on the front template and the push plate, the second inner module penetrates through the front template and is positioned on the water gap push plate, and the fourth inner module penetrates through the push plate and is positioned on the rear template;

the first inner die block and the third inner die block are respectively provided with a plurality of first die cavities and a plurality of third die cavities, and the first inner die block and the third inner die block form a first die cavity section of a plurality of L-shaped die cavities in a die assembly state; the second inner die block and the fourth inner die block are respectively provided with a plurality of second die cavities and a plurality of fourth die cavities, and the second inner die block and the fourth inner die block form a second die cavity section of a plurality of L-shaped die cavities in a die assembly state; the first cavity section and the second cavity section form a complete L-shaped cavity;

the mold cores comprise a first mold core and a second mold core, and the first mold core and the second mold core respectively extend into the L-shaped cavity from two sides of the L-shaped cavity and are abutted against each other;

the sliding blocks comprise first sliding blocks and second sliding blocks, the first sliding blocks are fixedly connected with the first mold cores, the second sliding blocks are fixedly connected with the second mold cores, the first sliding blocks are in transmission connection with the first oil cylinders and used for driving the first sliding blocks to move axially along the first mold cores, and the second sliding blocks are in transmission connection with the second oil cylinders and used for driving the second sliding blocks to move axially along the second mold cores.

Preferably, the first mold core is axially provided with a vent hole which is communicated with a high-pressure air supply device.

Preferably, a cooling water path is arranged inside the second mold core.

Preferably, one side of the first inner module, which is close to the second inner module, is provided with a step surface, one side of the second inner module, which is close to the first inner module, is provided with a step surface, and the step surface of the first inner module is matched with the step surface of the second inner module.

Preferably, one side of the third inner module, which is close to the fourth inner module, is provided with a step surface, one side of the fourth inner module, which is close to the third inner module, is provided with a step surface, and the step surface of the third inner module is matched with the step surface of the fourth inner module.

Preferably, the plurality of first mold cavities correspond to each step of the step surface one by one, and the plurality of second mold cavities correspond to each step of the step surface one by one.

Preferably, the plurality of third cavities correspond to each step of the step surface one to one, and the plurality of fourth cavities correspond to each step of the step surface one to one.

Preferably, one end of the ejector pin is positioned in the third inner module.

Preferably, the ejector pin panel further comprises a plurality of square irons which are assembled between the rear template and the bottom plate, and the ejector pin panel is assembled between the plurality of square irons and can move along the axial direction of the ejector rod.

According to the L-shaped nozzle mould, the inner mould comprises a first inner mould block, a second inner mould block, a third inner mould block and a fourth inner mould block, each inner mould block is provided with a plurality of parallel cavities, the inner wall of each cavity is provided with an annular groove for forming a corrugated section at the periphery of the L-shaped nozzle, the four inner mould blocks are mutually abutted to form the L-shaped cavity, in the production process, a plurality of products can be produced through one-time mould opening, and the production efficiency is improved; one end of a second inner module is fixed on the panel and can move along with the panel, one end of a fourth inner module is fixed on the rear template, a first mold core and a second mold core respectively extend into the cavity from two sides of the L-shaped cavity and abut against each other in the cavity, the first mold core is fixedly connected with a first sliding block, the second mold core is fixedly connected with a second sliding block, the first sliding block is driven by a first oil cylinder to move axially along the first mold core so as to drive the first mold core to move in the cavity, and the second sliding block is driven by a second oil cylinder to move axially along the second mold core so as to drive the second mold core to move in the cavity; through the auxiliary core pulling action of the oil cylinder, the simultaneous action of a plurality of groups of mold cores is realized, and the production efficiency is improved.

Drawings

FIG. 1 is an exploded view of an L-shaped nozzle mold according to the present invention;

FIG. 2 is an exploded view of an inner mold, a slide block and an oil cylinder of the L-shaped nozzle mold according to the present invention;

FIG. 3 is a schematic view of a third inner mold block and a fourth inner mold block of an L-shaped nozzle mold according to the present invention;

FIG. 4 is a schematic view of a mold core of an L-shaped nozzle mold according to the present invention;

FIG. 5 is a schematic view of an L-shaped nozzle mold opening step 1 according to the present invention;

FIG. 6 is a schematic view of an L-shaped nozzle mold opening step 2 according to the present invention;

FIG. 7 is a schematic view of an L-shaped nozzle mold opening step 3 according to the present invention;

FIG. 8 is a schematic view of an L-shaped nozzle mold opening step 4 according to the present invention;

FIG. 9 is a schematic view of an L-shaped nozzle mold opening step 5 according to the present invention;

FIG. 10 is a schematic view of an L-shaped nozzle mold opening step 6 according to the present invention;

fig. 11 is a schematic view of an L-shaped nozzle mold opening step 7 according to the present invention.

Detailed Description

Referring to fig. 1-3, the present invention provides an L-shaped nozzle mold, including; the device comprises a panel 11, a water gap push plate 12, a front template 13, a push plate 14, a rear template 15, an ejector pin panel 16, square iron, a bottom plate 17, an inner mold 2, a mold core 3, a slide block 4 and an oil cylinder 5;

the panel 11 is provided with a main runner 111, the nozzle push plate 12 is provided with a sprue 121, the panel 11, the nozzle push plate 12 and the front template 13 are sequentially abutted against one another and are installed and connected, and the panel 11, the nozzle push plate 12 and the front template 13 can move along the direction of the sprue 121; the ejector pin panel 16 and the two square irons are fixed on one side of the bottom plate 17, an ejector rod 161 is arranged on one side, away from the bottom plate 17, of the ejector pin panel 16, one end of the ejector rod 161 is inserted into the inner die 2 and can move axially along the ejector rod 161, the rear die plate 15 is fixed on one side, away from the bottom plate 17, of the square iron, and the push plate 14 is installed on one side, away from the bottom plate 17, of the rear die plate 15 and can move along the; the front template 13 is abutted against the push plate 14;

the inner die 2 is arranged between the front die plate 13 and the push plate 14, grooves are arranged on one side of the front die plate 13, which abuts against the push plate 14, the inner die 2 is fixed in the grooves, the inner die 2 comprises a first inner die block 21, a second inner die block 22, a third inner die block 23 and a fourth inner die block 24, one sides of the first inner die block 21 and the third inner die block 23 are respectively fixed in the grooves of the front die plate 13 and the push plate 14, through holes are respectively arranged on the front die plate 13 and the nozzle push plate 12, the second inner die block 22 passes through the through holes and is fixed on the panel 11, through holes are arranged on the push plate 14, the fourth inner die block 24 passes through the through holes and is fixed on the rear die plate 15, each inner die 2 is provided with four cavities which are parallel to each other, annular grooves are respectively arranged in the cavities, the annular grooves are used for forming corrugated sections of the outer walls of the L-shaped nozzles, parting surfaces of the first inner die block 21 and, the parting surfaces of the first inner die block 21 and the third inner die block 23 after die assembly and the parting surfaces of the second inner die block 22 and the fourth inner die block 24 are positioned on the same plane to form a complete L-shaped die cavity;

the mold core 3 comprises a first mold core 31 and a second mold core 32, the first mold core 31 and the second mold core 32 respectively extend into the L-shaped cavity from two sides of the L-shaped cavity and are abutted against each other, and an annular bulge 322 is arranged on the periphery of the second mold core 32 and is used for forming a corrugated section on the inner wall of the L-shaped nozzle;

the slide block 4 is arranged between the front template 13 and the push plate 14, the slide block 4 comprises a first slide block 41 and a second slide block 42, the first slide block 41 and the second slide block 42 are respectively fixedly connected with one ends of the first mold core 31 and the second mold core 32, the first slide block 41 is in transmission connection with a first oil cylinder 51 and drives the first slide block 41 to axially move along the first mold core 31 by the first oil cylinder 51 so as to drive the first mold core 31 to move in the mold cavity, the second slide block 42 is in transmission connection with a second oil cylinder 52 and drives the second slide block 42 to axially move along the second mold core 32 by the second oil cylinder 52 so as to drive the second mold core 32 to move in the mold cavity.

The embodiment also provides a mold opening method of the mold, after the inner mold 2 is closed and the mold core 3 extends into the mold cavity, molten TPV plastic is injected into the mold cavity through the injection mechanism, after cooling and molding, mold opening and core pulling actions start, and the mold opening and core pulling actions have seven steps:

referring to fig. 4, in the first step, the mold is opened between the nozzle push plate 12 and the front mold plate 13, the face plate 11 moves along with the nozzle push plate 12 and is separated from the front mold plate 13 by a certain distance, and the second inner mold 22 moves along with the face plate 11 and is separated from the L-shaped nozzle because the second inner mold 22 is fixedly connected with the face plate 11;

referring to fig. 5, in the second step, the mold is opened between the push plate 14 and the rear mold plate 15, the front mold plate 13 moves along with the push plate 14 and is pulled away from the rear mold plate 15 by a certain distance, because the L-shaped nozzle, the first inner mold 21, the third inner mold 23, the slider 4 and the oil cylinder 5 are between the front mold plate 13 and the push plate 14, the L-shaped nozzle, the first inner mold 21, the third inner mold 23, the slider 4 and the oil cylinder 5 move along with the front mold plate 13 and the push plate 14, and because the fourth inner mold 24 is fixedly connected with the rear mold plate 15, the fourth inner mold 24 is separated from the L-shaped nozzle;

referring to fig. 6, in the third step, the panel 11 and the nozzle push plate 12 are opened, and the panel 11 and the nozzle push plate 12 are separated by a certain distance;

referring to fig. 7, in the fourth step, the mold opening action is temporarily stopped, the second oil cylinder 52 drives the second slide block 42 to move, the second slide block 42 drives the second mold core 32 to move axially along the second mold core 32, and the second mold core 32 is drawn out of the cavity, although the annular protrusion 322 is arranged on the periphery of the second mold core 32 and embedded in the inner wall of the L-shaped nozzle to affect core drawing, since the first inner mold block 21 and the third inner mold block 23 are still in a mold closing state at this time, the corrugated section on the periphery of the L-shaped nozzle is pressed in the annular grooves of the first inner mold block 21 and the third inner mold block 23, and when the second mold core 32 is drawn out of the cavity, the L-shaped nozzle cannot move along with the second mold core 32, so that the problems of deformation and breakage of the product buckling;

referring to fig. 8, in the fifth step, the mold is opened between the front mold plate 13 and the push plate 14, and since the first inner mold block 21 is fixedly connected with the front mold plate 13, the first inner mold block 21 moves with the front mold plate 13 to separate from the L-shaped nozzle;

referring to fig. 9, in the sixth step, the first oil cylinder 51 drives the slider 4 to move, and then the slider 4 drives the first mold core 31 to move axially along the first mold core 31, so that the first mold core 31 is drawn out of the cavity;

referring to fig. 10, in the seventh step, the ejector rod 161 moves to eject the L-shaped nozzle out of the third inner mold block 23; and the whole die opening and core pulling process is finished.

In a specific embodiment, the first mold core 31 is axially provided with a vent hole 311, the vent hole 311 is communicated with a high-pressure gas supply device, gas is simultaneously conveyed to the vent hole 311 by the high-pressure gas supply device in a core pulling process, the gas enters the hollow structure of the L-shaped nozzle after coming out of the vent hole 311, the inner wall of the L-shaped nozzle is separated from the outer wall of the second mold core 32 due to the fact that the TPV material is soft, the L-shaped nozzle expands due to the high-pressure gas, the second mold core 32 is convenient to pull out, and the L-shaped nozzle cannot be torn in the core pulling process; the second mold core 32 is provided with a cooling water path 321 inside, so that the uniform cooling of the product in the molding process is ensured, and the excessive deformation is avoided.

The second inner die block 22 is provided with a step surface, one side of the first inner die block 21, which is far away from the die cavity, abuts against the step surface, the fourth inner die block 24 is provided with a step surface, and one side of the third inner die block 23, which is far away from the die cavity, abuts against the step surface; after the die assembly, the second inner die block 22 abuts against the first inner die block 21, and the fourth inner die block 24 abuts against the third inner die block 23, so that the inner die blocks 2 are abutted more tightly, and the flash phenomenon is prevented.

In the design of a pouring system, a positioning ring is arranged on a main runner 111 on a panel 11, a runner 121 sleeve is arranged on a runner 121 of a nozzle push plate 12, a runner 13 is arranged on a front template 13, the runner 121 abuts against the runner, and the runner is communicated with various cavities; the injection device is matched with the locating ring, and raw materials are extruded by the injection device and then enter the main runner 111, then flow into the sub-runners through the pouring gates 121, and finally flow into each cavity through the sub-runners.

L type nozzle mould still presses the seat including shovel chicken, has all seted up the through-hole on panel 11, mouth of a river push pedal 12, front template 13 and the second slider 42, shovel chicken presses seat one end to be fixed in on the panel 11 and insert in the through-hole.

In the L-shaped nozzle mold provided by the embodiment, the inner mold 2 is provided with four cavities, four products can be produced by opening the mold once in the production process, and the production efficiency is improved; the core-pulling action of the mold core 3 is completed by arranging an oil cylinder 5 mechanism; according to the provided mold opening method, by controlling the mold opening sequence of the inner mold 2 and the core pulling sequence of the sliding block 4 in the mold opening process, the L-shaped nozzle cannot be pulled and slide by the mold core 3 in the core pulling process, so that the ripple position is not pulled and torn by pulling, and the phenomenon that the product cannot be automatically demolded due to the fact that TPV soft rubber is stuck to the slide is prevented.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. An L-shaped nozzle mold is characterized by comprising; the device comprises a panel (11), a water gap push plate (12), a front template (13), a push plate (14), a rear template (15), an ejector pin panel (16), a bottom plate (17), an inner mold (2), a mold core (3), a slide block (4) and an oil cylinder (5);

the water gap structure comprises a panel (11), a water gap push plate (12) and a front template (13) which are assembled in sequence, wherein a main runner (111) is arranged on the panel (11), a pouring gate (121) is arranged on the water gap push plate (12), and a sub-runner is arranged on the front template (13); the push plate (14), the rear template (15), the ejector pin panel (16) and the bottom plate (17) are assembled in sequence, and an ejector rod (161) is arranged on the inner side of the ejector pin panel (16); the front template (13) is abutted against the push plate (14), and the inner mold (2) and the mold core (3) are assembled between the front template (13) and the push plate (14);

the inner die (2) comprises a first inner die block (21), a second inner die block (22), a third inner die block (23) and a fourth inner die block (24), the first inner die block (21) and the third inner die block (23) are respectively positioned on the front template (13) and the push plate (14), the second inner die block (22) penetrates through the front template (13) and is positioned on the water gap push plate (12), and the fourth inner die block (24) penetrates through the push plate (14) and is positioned on the rear template (15);

the first inner die block (21) and the third inner die block (23) are respectively provided with a plurality of first die cavities and a plurality of third die cavities, and the first inner die block (21) and the third inner die block (23) form a first die cavity section of a plurality of L-shaped die cavities in a die assembly state; a plurality of second die cavities and a plurality of fourth die cavities are respectively arranged on the second inner die block (22) and the fourth inner die block (24), and the second inner die block (22) and the fourth inner die block (24) form a second die cavity section of a plurality of L-shaped die cavities in a die closing state; the first cavity section and the second cavity section form a complete L-shaped cavity;

the mold core (3) comprises a first mold core (31) and a second mold core (32), and the first mold core (31) and the second mold core (32) respectively extend into the cavity from two sides of the L-shaped cavity and are abutted against each other;

the sliding block (4) comprises a first sliding block (41) and a second sliding block (42), the first sliding block (41) is fixedly connected with the first mold core (31), the second sliding block (42) is fixedly connected with the second mold core (32), the first sliding block (41) is in transmission connection with a first oil cylinder (51) and used for driving the first sliding block (41) to axially move along the first mold core (31), and the second sliding block (42) is in transmission connection with a second oil cylinder (52) and used for driving the second sliding block (42) to axially move along the second mold core (32).

2. The L-shaped nozzle mold according to claim 1, wherein the first mold core (31) is axially provided with vent holes (311), and the vent holes (311) are communicated with a high-pressure air supply device.

3. The L-shaped nozzle mold according to claim 1, wherein a cooling water path (321) is opened inside the second mold core (32).

4. The L-shaped nozzle mold according to claim 1, wherein the first inner mold block (21) has a step surface on a side thereof adjacent to the second inner mold block (22), the second inner mold block (22) has a step surface on a side thereof adjacent to the first inner mold block (21), and the step surface of the first inner mold block (21) is engaged with the step surface of the second inner mold block (22).

5. L-shaped nozzle mould according to claim 4, characterized in that the third inner mould block (23) is provided with a step surface on the side close to the fourth inner mould block (24), the fourth inner mould block (24) is provided with a step surface on the side close to the third inner mould block (23), and the step surface of the third inner mould block (23) is matched with the step surface of the fourth inner mould block (24).

6. An L-shaped nozzle mold according to claim 4, wherein a plurality of first mold cavities correspond one-to-one to each step of the step surface, and a plurality of second mold cavities correspond one-to-one to each step of the step surface.

7. An L-shaped nozzle mold according to claim 5, wherein a plurality of third cavities correspond one-to-one to each step of the step surface, and a plurality of fourth cavities correspond one-to-one to each step of the step surface.

8. L-shaped nozzle mould according to claim 1, characterized in that one end of the ejector pin (161) is positioned in the third inner mould block (23).

9. The L-shaped nozzle mold according to claim 1, further comprising a plurality of square irons fitted between the back mold plate (15) and the bottom plate (17), and the ejector pin panel (16) fitted between the plurality of square irons and axially movable along the ejector pins (161).