CN215550496U - Gas-assisted forming injection mold for child plastic toilet seat handrail - Google Patents

Abstract

The utility model belongs to the technical field of molds, and particularly relates to an air-assisted molding injection mold for a child plastic toilet seat armrest. The toilet seat handrail forming device comprises a toilet seat handrail forming lower die and a toilet seat handrail forming upper die, wherein a material injection part is arranged at the top of the toilet seat handrail forming upper die, and an air-assisted injection pipe is arranged in the toilet seat handrail forming upper die. When the toilet seat armrest forming lower die and the toilet seat armrest forming upper die are used, the toilet seat armrest forming lower die and the toilet seat armrest forming upper die are close to each other, the armrest forming concave part and the armrest forming convex part are abutted to form a complete cavity, molten materials are injected into the cavity through the material injection part, after the materials are filled to proper quantities, high-pressure inert nitrogen is injected into the cavity through the gas-assisted injection pipe, gas-assisted forming is completed, after the injection is completed, the plastic piece after cooling can be ejected in multiple directions through the clamping plate embedded ejection assembly, the ejection contact area is large, damage to the surface of the plastic piece is avoided, and the injection forming precision is high.

Description

Gas-assisted forming injection mold for child plastic toilet seat handrail

Technical Field

The utility model belongs to the technical field of molds, and relates to an air-assisted molding injection mold for a child plastic toilet seat armrest.

Background

An injection mold is a tool for producing plastic products; and is also a tool for giving the plastic product complete structure and accurate dimension. Injection molding is a process used to mass produce parts of some complex shapes. Wherein the gas-assisted molding is also one of the injection molds. After the existing gas-assisted injection mold finishes injection molding, an ejection rod is generally adopted to eject a plastic part, the contact area ejected in the ejection process is small, the surface of the plastic part is easily damaged, and the precision of injection molding is general.

In order to overcome the defects of the prior art, various solutions are proposed through continuous exploration, for example, chinese patent discloses a mold system with an air-assisted molding mechanism [ application No.: 201410176422.4], including core, die cavity, thimble board, thimble fixed plate, mould foot, compound board down, the core is located the die cavity below, and on the thimble was fixed in the thimble fixed plate, thimble board and thimble fixed plate overlapped as an organic whole, and the mould foot is connected between core and compound board down, and thimble board and thimble fixed plate can locate the core and compound between the board down with reciprocating, wherein, still include: the air injection block is cylindrical, an air channel is arranged in the air injection block along the length direction, an air inlet communicated with the air channel is formed in the outer end face of the air injection block, and a protruding air nozzle is formed in the inner end face of the air injection block and used for injecting high-pressure air into the cavity; the side of the mold core is provided with a groove, the air injection block is embedded into the groove, and the air nozzle extends into the mold cavity. The utility model can utilize the air injection block to blow high-pressure air into the cavity while injecting plastic, thereby forming a cavity in the plastic product. However, the contact area ejected in the ejection process of the scheme is still small, the surface of a plastic part is easily damaged, and the defect that the precision of injection molding is common exists.

Disclosure of Invention

The utility model aims to solve the problems and provides an air-assisted forming injection mold for a child plastic toilet seat armrest.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a children's plastics toilet bowl handrail gas is assisted shaping injection mold, includes toilet bowl handrail shaping lower mould and toilet bowl handrail shaping and goes up the mould, toilet bowl handrail shaping go up the mould top and be equipped with the material portion of moulding plastics, toilet bowl handrail shaping go up the mould in be equipped with the gas and assist the pipe of moulding plastics, the gas assist the position of moulding plastics pipe and material portion of moulding plastics corresponding, toilet bowl handrail shaping lower mould in be equipped with handrail shaping concave part, toilet bowl handrail shaping go up the mould bottom and be equipped with handrail shaping convex part, handrail shaping concave part and handrail shaping convex part the corresponding and shape of position match and fit, toilet bowl handrail shaping lower mould below be equipped with can follow near or keep away from handrail shaping concave part one end and be reciprocal linear motion's the ejecting subassembly of splint mosaic type.

In the above-mentioned children's plastics toilet bowl handrail gas-assisted molding injection mold, the ejecting subassembly of splint mosaic type including set up in the ejecting fixed plate of toilet bowl handrail shaping lower mould below, ejecting fixed plate on be equipped with middle part horizontal splint ejecting portion and lateral part ejector pin portion, middle part horizontal splint ejecting portion and lateral part ejector pin portion can be followed respectively and is close to or keep away from handrail shaping concave part one end and do synchronous reciprocal linear motion.

In the above air-assisted forming injection mold for child plastic toilet handrails, the middle horizontal clamping plate ejection part comprises a plurality of clamping plate fixed connecting rods arranged on an ejection fixing plate, a plurality of middle ejection clamping plates are arranged in the lower die for forming the toilet handrails, the clamping plate fixed connecting rods are connected with the middle ejection clamping plates, and the middle ejection clamping plates correspond to the positions of the handrail forming concave parts.

In foretell children's plastics toilet bowl handrail gas-assisted forming injection mold, splint fixed connection pole run through toilet bowl handrail shaping lower mould and splint fixed connection pole and toilet bowl handrail shaping lower mould looks sliding fit, splint fixed connection pole on be equipped with the splint buckle, splint buckle and the cooperation of middle part ejecting splint looks joint.

In foretell children's plastics toilet bowl handrail gas-assisted forming injection mold, lateral part ejector pin portion include a plurality of lateral part ejector pins that set up on ejecting fixed plate, lateral part ejector pin run through toilet bowl handrail shaping lower mould and lateral part ejector pin and toilet bowl handrail shaping lower mould looks sliding fit, lateral part ejector pin and splint fixed connection pole's position corresponding.

In the gas-assisted forming injection mold for the child plastic toilet armrest, a fixed bottom plate is arranged below the ejection fixed plate, two pieces of anti-bias iron are arranged on the fixed bottom plate, and the ejection fixed plate is in sliding fit with the anti-bias iron.

In the gas-assisted forming injection mold for the child plastic toilet armrest, the fixed base plate is further provided with a plurality of in-plate limiting shafts which are parallel to each other, and the ejection fixed plate is in sliding fit with the in-plate limiting shafts.

In the above-mentioned child plastic toilet seat handrail gas-assisted molding injection mold, the handrail molding concave part comprises a handrail molding concave cavity arranged in the toilet seat handrail molding lower die, and the middle ejection clamping plate is positioned in the handrail molding concave cavity.

In the above-mentioned children's plastics toilet bowl handrail gas-assisted molding injection mold, handrail shaping convex part including set up the handrail shaping lug in toilet bowl handrail shaping upper die bottom, handrail shaping lug match with the shape of handrail shaping cavity and fit.

In foretell children's plastics toilet bowl handrail gas-assisted forming injection mold, the material portion of moulding plastics including setting up in the injection molding board at toilet bowl handrail shaping top of the mould, the injection molding inboard in be equipped with the owner's hole of moulding plastics.

Compared with the prior art, the utility model has the advantages that:

1. when the toilet seat armrest forming lower die and the toilet seat armrest forming upper die are used, the toilet seat armrest forming lower die and the toilet seat armrest forming upper die are close to each other, the armrest forming concave part and the armrest forming convex part are abutted to form a complete cavity, molten materials are injected into the cavity through the material injection part, after the materials are filled to proper quantities, high-pressure inert nitrogen is injected into the cavity through the gas-assisted injection pipe, gas-assisted forming is completed, after the injection is completed, the plastic piece after cooling can be ejected in multiple directions through the clamping plate embedded ejection assembly, the ejection contact area is large, damage to the surface of the plastic piece is avoided, and the injection forming precision is high.

2. In the moving process of the ejection fixing plate, the ejection fixing plate is further limited by the sliding fit between the ejection fixing plate and the limiting shaft in the plate, so that the ejection fixing plate is prevented from rotating in the circumferential direction in the moving process.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.

Drawings

Fig. 1 is an exploded schematic view of the present invention.

Fig. 2 is an exploded view in another aspect of the utility model.

Fig. 3 is a schematic structural view of a splint mosaic type ejection assembly.

In the figure: toilet seat handrail shaping lower mould 1, toilet seat handrail shaping upper mould 2, material portion of moulding plastics 3, gas is assisted and is moulded plastics pipe 4, handrail shaping concave part 5, handrail shaping convex part 6, splint mosaic type ejecting subassembly 7, ejecting fixed plate 8, middle part horizontal splint ejecting part 9, lateral part ejector pin portion 10, splint fixed connection pole 11, middle part ejecting splint 12, lateral part ejector pin 13, PMKD 14, prevent that slightly small iron 15, spacing axle 16 in the board, handrail shaping cavity 17, handrail shaping lug 18, injection molding plate 19, the master hole 20 of moulding plastics.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

As shown in fig. 1-3, the air-assisted forming injection mold for the child plastic toilet seat handrail comprises a toilet seat handrail forming lower mold 1 and a toilet seat handrail forming upper mold 2, the top of the upper mould 2 for forming the toilet seat handrail is provided with a material injection part 3, the upper mould 2 for forming the toilet seat handrail is internally provided with an air-assisted injection pipe 4, the gas-assisted injection pipe 4 corresponds to the material injection part 3, a handrail forming concave part 5 is arranged in the lower mould 1 for forming the handrail of the toilet bowl, the bottom of the upper mould 2 for molding the toilet armrest is provided with an armrest molding convex part 6, the armrest molding concave part 5 corresponds to the armrest molding convex part 6 in position and is matched with the armrest molding convex part in shape, a splint embedded ejection assembly 7 capable of performing reciprocating linear motion along one end close to or far away from the handrail forming concave part 5 is arranged below the toilet handrail forming lower die 1.

In this embodiment, in the use, be close to each other with toilet bowl handrail shaping lower mould 1 and toilet bowl handrail shaping upper mould 2, make handrail shaping concave part 5 and handrail shaping convex part 6 looks butt form complete die cavity, the melting material injects into the die cavity through material injection molding portion 3, after filling to suitable material, inject high pressure inertia nitrogen gas into the die cavity through gas-assisted injection pipe 4, accomplish gas-assisted shaping, after the completion of moulding plastics, can carry out diversified ejecting with the piece of moulding after the cooling through splint inserted ejecting subassembly 7, ejecting area of contact is great, avoid causing the damage to moulding a surface, the injection moulding precision is higher.

Referring to fig. 1 and 3, the clamping plate embedded ejection assembly 7 includes an ejection fixing plate 8 disposed below the lower mold 1 for forming the armrest of the toilet, the ejection fixing plate 8 is provided with a middle transverse clamping plate ejection portion 9 and a lateral portion ejection portion 10, and the middle transverse clamping plate ejection portion 9 and the lateral portion ejection portion 10 can respectively perform synchronous reciprocating linear motion along one end close to or far away from the armrest forming recess 5.

Specifically, the ejection fixing plate 8 is used for installing and fixing the middle transverse clamping plate ejection portion 9 and the lateral portion ejector rod portion 10, after injection molding, the middle position of a plastic part is ejected through the middle transverse clamping plate ejection portion 9, the cross section area of the abutting portion is large, damage to the surface of the plastic part is avoided, injection molding precision is high, the lateral portion ejector rod portion 10 ejects the lateral portion of the plastic part, ejection assisting is carried out, and ejection efficiency is improved.

Referring to fig. 1 and 3, the middle horizontal clamping plate ejection portion 9 includes a plurality of clamping plate fixing connection rods 11 disposed on the ejection fixing plate 8, the lower toilet armrest molding die 1 is provided with a plurality of middle ejection clamping plates 12, the clamping plate fixing connection rods 11 are connected to the middle ejection clamping plates 12, and the middle ejection clamping plates 12 correspond to the armrest molding concave portion 5.

In this embodiment, splint fixed connection pole 11 is used for connecting fixed middle part ejecting splint 12, and at ejecting in-process, moving splint fixed connection pole 11 drives middle part ejecting splint 12 synchronous motion, through middle part ejecting splint 12 and mould the butt effect between the piece, will mould the middle part position of piece ejecting, and ejecting area of contact is great, avoids causing the damage to moulding a surface, and the injection moulding precision is higher.

Splint fixed connection pole 11 run through 1 toilet bowl handrail shaping lower mould and splint fixed connection pole 11 and 1 looks sliding fit of toilet bowl handrail shaping lower mould, splint fixed connection pole 11 on be equipped with the splint buckle, splint buckle and the cooperation of 12 looks joints of middle part ejecting splint.

In this embodiment, through the joint cooperation between splint buckle and the ejecting splint 12 in middle part, can make ejecting splint 12 in middle part and splint fixed connection pole 11 steady connected state, avoid ejecting splint 12 in middle part to take place to rock.

Referring to fig. 1, the lateral ejector rod 10 includes a plurality of lateral ejector rods 13 disposed on the ejector fixing plate 8, the lateral ejector rods 13 penetrate through the lower toilet handrail forming die 1, the lateral ejector rods 13 are in sliding fit with the lower toilet handrail forming die 1, and the lateral ejector rods 13 correspond to the clamp plate fixing connection rods 11.

In this embodiment, in the ejection process, the ejection fixing plate 8 is moved to drive the lateral ejection rod 13 to move synchronously, and the lateral portion of the plastic part can be ejected synchronously through the lateral ejection rod 13, so that the ejection range is large.

A fixed bottom plate 14 is arranged below the ejection fixed plate 8, two pieces of anti-deflection iron 15 are arranged on the fixed bottom plate 14, and the ejection fixed plate 8 is in sliding fit with the anti-deflection iron 15.

In this embodiment, in the moving process of the ejection fixing plate 8, through the sliding fit between the ejection fixing plate 8 and the anti-bias iron 15, the ejection fixing plate 8 can be prevented from angular deviation in the moving process, and the accuracy of the displacement of the ejection fixing plate 8 is improved.

Referring to fig. 1 and 2, the fixed bottom plate 14 is further provided with a plurality of parallel in-plate limiting shafts 16, and the ejection fixing plate 8 is in sliding fit with the in-plate limiting shafts 16.

In this embodiment, in the moving process of the ejection fixing plate 8, the ejection fixing plate 8 is further limited by the sliding fit between the ejection fixing plate 8 and the in-plate limiting shaft 16, so that the ejection fixing plate 8 is prevented from rotating circumferentially in the moving process.

The handrail forming concave part 5 comprises a handrail forming cavity 17 arranged in the lower toilet handrail forming die 1, the middle ejection clamping plate 12 is positioned in the handrail forming cavity 17, the handrail forming convex part 6 comprises a handrail forming convex block 18 arranged at the bottom of the upper toilet handrail forming die 2, and the handrail forming convex block 18 is matched with the shape of the handrail forming cavity 17.

In this embodiment, during mold closing, the handrail forming cavity 17 and the handrail forming protrusion 18 are close to each other to form a complete cavity.

The material injection molding part 3 comprises an injection molding plate 19 arranged at the top of an upper mold 2 in the toilet armrest molding process, and an injection molding main hole 20 is formed in the injection molding plate 19.

In this embodiment, during the injection molding process, the molten material is injected from the injection main hole 20, passes through the injection molding plate 19, and enters the cavity to complete the injection molding.

The working principle of the utility model is as follows:

in the using process, the lower toilet seat armrest forming die 1 and the upper toilet seat armrest forming die 2 are close to each other, so that the armrest forming cavity 17 and the armrest forming lug 18 are abutted to each other to form a complete cavity in abutting connection, molten materials are injected from the injection main hole 20 and enter the cavity through the injection plate 19 to complete injection molding, after the materials are filled to proper amount, high-pressure inert nitrogen is injected into the cavity through the gas-assisted injection pipe 4 to complete gas-assisted forming, after the injection molding is completed, the ejection fixing plate 8 is moved to drive the movable clamping plate to fix the connecting rod 11 and drive the middle ejection clamping plate 12 to synchronously move, the middle position of a plastic part is ejected through the abutting action between the middle ejection clamping plate 12 and the plastic part, the ejection contact area is large, the surface of the plastic part is prevented from being damaged, the injection molding precision is high, the side ejection rod 13 is synchronously driven to synchronously move in the moving process of the ejection fixing plate 8, the side part of the plastic part can be synchronously ejected through the side part ejection rod 13, the ejection range is large,

in the moving process of the ejection fixing plate 8, the ejection fixing plate 8 is prevented from generating angle deviation in the moving process through the sliding fit between the ejection fixing plate 8 and the anti-deviation iron 15, the displacement accuracy of the ejection fixing plate 8 is improved,

in addition, in the moving process of the ejection fixing plate 8, the ejection fixing plate 8 is further limited by the sliding fit between the ejection fixing plate 8 and the in-plate limiting shaft 16, and circumferential rotation of the ejection fixing plate 8 in the moving process is avoided.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit of the utility model.

Although the terms of the lower toilet armrest molding die 1, the upper toilet armrest molding die 2, the material injection portion 3, the air-assisted injection pipe 4, the armrest molding concave portion 5, the armrest molding convex portion 6, the splint insert ejection assembly 7, the ejection fixing plate 8, the middle transverse splint ejection portion 9, the side ejector rod portion 10, the splint fixing connection rod 11, the middle ejection splint 12, the side ejector rod 13, the fixing base plate 14, the anti-deviation iron 15, the in-plate limit shaft 16, the armrest molding concave portion 17, the armrest molding convex portion 18, the injection molding plate 19, the injection molding main hole 20, etc. are used more frequently herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and they are to be interpreted as any additional limitation which is not in accordance with the spirit of the present invention.

Claims (10)

1. An air-assisted forming injection mold for children plastic toilet seat handrails comprises a lower toilet seat handrail forming mold (1) and an upper toilet seat handrail forming mold (2), it is characterized in that the top of the upper mould (2) for forming the toilet armrest is provided with a material injection part (3), an air-assisted injection pipe (4) is arranged in the upper mould (2) for forming the toilet seat handrail, the gas-assisted injection pipe (4) corresponds to the material injection part (3), a handrail forming concave part (5) is arranged in the lower toilet handrail forming die (1), the bottom of the upper mould (2) for molding the toilet armrest is provided with an armrest molding convex part (6), the handrail forming concave part (5) corresponds to the handrail forming convex part (6) in position and is matched with the handrail forming convex part in shape, the lower part of the toilet seat handrail forming lower die (1) is provided with a splint embedded ejection assembly (7) which can do reciprocating linear motion along one end close to or far away from the handrail forming concave part (5).

2. The air-assisted forming injection mold for the handrails of the child plastic toilet bowl according to claim 1, wherein the clamping plate embedded type ejection assembly (7) comprises an ejection fixing plate (8) arranged below the lower forming mold (1) of the handrails of the toilet bowl, a middle transverse clamping plate ejection part (9) and a side ejector rod part (10) are arranged on the ejection fixing plate (8), and the middle transverse clamping plate ejection part (9) and the side ejector rod part (10) can respectively perform synchronous reciprocating linear motion along one end close to or far away from the handrail forming concave part (5).

3. The air-assisted forming injection mold for the handrails of the plastic children toilet bowl according to claim 2, wherein the middle transverse splint ejection part (9) comprises a plurality of splint fixing and connecting rods (11) arranged on the ejection fixing plate (8), a plurality of middle ejection splints (12) are arranged in the lower toilet bowl handrail forming mold (1), the splint fixing and connecting rods (11) are connected with the middle ejection splints (12), and the middle ejection splints (12) correspond to the handrail forming concave part (5).

4. The air-assisted forming injection mold for children's plastic toilet seat handrails according to claim 3, wherein the clamping plate fixing connecting rod (11) penetrates through the toilet seat handrail forming lower mold (1) and the clamping plate fixing connecting rod (11) is in sliding fit with the toilet seat handrail forming lower mold (1), the clamping plate fixing connecting rod (11) is provided with a clamping plate buckle, and the clamping plate buckle is in clamping fit with the middle ejection clamping plate (12).

5. The air-assisted forming injection mold for the handrails of the child plastic toilet bowl according to claim 4, wherein the lateral ejecting rod part (10) comprises a plurality of lateral ejecting rods (13) arranged on the ejecting fixing plate (8), the lateral ejecting rods (13) penetrate through the lower toilet bowl handrail forming mold (1), the lateral ejecting rods (13) are in sliding fit with the lower toilet bowl handrail forming mold (1), and the lateral ejecting rods (13) correspond to the clamping plate fixing connecting rods (11).

6. The air-assisted forming injection mold for handrails of a child plastic toilet bowl according to claim 5, wherein a fixed bottom plate (14) is arranged below the ejection fixing plate (8), two pieces of anti-deviation iron (15) are arranged on the fixed bottom plate (14), and the ejection fixing plate (8) is in sliding fit with the anti-deviation iron (15).

7. The air-assisted forming injection mold for handrails of a child plastic toilet bowl according to claim 6, wherein a plurality of in-plate limiting shafts (16) which are parallel to each other are further arranged on the fixed bottom plate (14), and the ejection fixed plate (8) is in sliding fit with the in-plate limiting shafts (16).

8. The air-assisted forming injection mold for the handrail of a child plastic toilet bowl according to claim 7, wherein the handrail forming concave part (5) comprises a handrail forming cavity (17) arranged in the lower toilet bowl handrail forming mold (1), and the middle ejection clamp plate (12) is positioned in the handrail forming cavity (17).

9. The air-assisted forming injection mold for the handrail of a child plastic toilet bowl according to claim 8, wherein the handrail forming convex part (6) comprises a handrail forming convex block (18) arranged at the bottom of the upper toilet bowl handrail forming mold (2), and the handrail forming convex block (18) is matched with the shape of the handrail forming concave cavity (17).

10. The air-assisted forming injection mold for the handrail of the child plastic toilet bowl according to claim 9, wherein the material injection part (3) comprises an injection molding plate (19) arranged at the top of the upper forming mold (2) for the handrail of the toilet bowl, and an injection main hole (20) is formed in the injection molding plate (19).

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