CN213618001U

CN213618001U - Fiber-uninterrupted injection molding system for injection molding machine

Info

Publication number: CN213618001U
Application number: CN202021806582.XU
Authority: CN
Inventors: 萧栋斌
Original assignee: HUARONG PLASTIC MACHINERY CO LTD
Current assignee: HUARONG PLASTIC MACHINERY CO LTD
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2021-07-06
Anticipated expiration: 2030-08-26

Abstract

A fiber-uninterrupted injection molding system for an injection molding machine comprises a machine, an injection device and a pressing device; the machine table is provided with a fixed wall and a mold, the fixed wall is arranged on the machine table, and the mold is arranged on one side of the fixed wall; the injection device is arranged on the machine table and is provided with an injection pipe and a driving source, one end of the injection pipe is provided with an injection nozzle, and the top end of the injection pipe is provided with a feeding hole; a push rod is arranged in the material injection pipe, a gap is formed between the push rod and the inner wall of the material injection pipe, and a material storage space is formed at the front end of the material injection pipe; the driving source is arranged at the rear end of the push rod and connected with the push rod; the material pressing device is provided with a blanking funnel, a material barrel and a piston rod, a blanking port is arranged below the blanking funnel in the vertical direction, and the blanking port is fixedly connected with the material inlet; the charging basket is arranged above the blanking funnel, and an accommodating space is formed inside the charging basket for accommodating a plastic; the front end of the piston rod is provided with a material pressing plate; the push rod is driven by the driving source to push in parallel, so that fibers in plastics can be prevented from being damaged, the strength of products can be increased, and the qualification rate can be improved.

Description

Fiber-uninterrupted injection molding system for injection molding machine

[ technical field ] A method for producing a semiconductor device

The utility model provides a continuous fine system of moulding plastics of injection moulding machine, especially a composite fiber plastics can avoid destroying the fibre in the plastics at the in-process of automatic pressurization pay-off and injection molding plastics, can increase product strength and promote the qualification rate.

[ background of the invention ]

With the diversification and customization of products, for example: the materials injected and molded by an injection molding machine are not single-type or single-type but various multi-type composite materials, and the composite materials are firstly mixed and stirred to uniformly mix plastic powder and fibers, for example, thermosetting Bulk Molding Compound (BMC) consisting of inert filler, glass fiber reinforced material, catalyst, stabilizer and pigment is widely applied to the manufacturing field of various plastic products.

Referring to fig. 1-4, a conventional thermosetting injection molding system 1 includes a machine 2, an injection device 3, and a pressing device 4; the machine table 2 has a fixed wall 20 and a mold 21, the fixed wall 20 is disposed on the machine table 2, and the mold 21 is disposed on one side of the fixed wall 20; the injection device 3 is installed on the machine table 2 and has an injection tube 30 and a driving source 31, one end of the injection tube 30 has an injection nozzle 32, and the top end of the injection tube 30 has a feeding port 33; a screw 34 is arranged in the injection pipe 30, the outer ring of the screw 34 is provided with a thread 35, and a gap 36 is arranged between the screw 34 and the inner wall of the injection pipe 30; the driving source 31 (for example: a motor) is disposed at the rear end of the screw 34 and connected to the screw 34 for driving the screw 34 to rotate and push; the pressing device 4 has a blanking funnel 40, a material barrel 41 and a piston rod 42, a blanking port 43 is arranged below the blanking funnel 40 in the vertical direction, and the blanking port 43 is connected and fixed with the feeding port 33; the charging basket 41 is disposed above the discharging funnel 40, and has an accommodating space 44 therein for accommodating a plastic a; the front end of the piston rod 42 is provided with a material pressing plate 45, when the piston rod 42 is actuated, the material pressing plate 45 presses the plastic A placed in the accommodating space 44 from top to bottom into the material dropping funnel 40, and the plastic A falls into the gap 36 of the material injecting pipe 30 through the material dropping port 43 and the material feeding port 33, and when the screw rod 34 is driven by the driving source 31 to rotate and push, the plastic A is injected into the mold 21 through the injection nozzle 32 for injection molding.

However, in the conventional injection molding process, the driving source 31 drives the screw 34 to rotate to push the plastic a to be injected into the mold 21 through the injection nozzle 32 for injection molding, and the screw 35 is liable to break the plastic a fiber with composite fiber, which results in insufficient strength of the product after injection molding and poor yield.

The above problems clearly remain to be improved.

[ Utility model ] content

The utility model provides a to the in-process of semi-solid composite fiber plastics at the automatic pressurization pay-off and jet out plastics, can avoid destroying the fibre in the plastics, can increase thermosetting (BMC) product strength and promote the continuous fine injection molding system of injection moulding machine of qualification rate.

To achieve the above object, the continuous fiber injection molding system of the injection molding machine of the present invention comprises a machine table, an injection device and a pressing device; the machine table is provided with a fixed wall and a mold, the fixed wall is arranged on the machine table, and the mold is arranged on one side of the fixed wall; the injection device is arranged on the machine table and is provided with an injection pipe and a driving source, one end of the injection pipe is provided with an injection nozzle, and the top end of the injection pipe is provided with a feeding hole; a push rod is arranged in the material injection pipe, a gap is formed between the push rod and the inner wall of the material injection pipe, and a material storage space is formed at the front end of the material injection pipe; the driving source is arranged at the rear end of the push rod and connected with the push rod; the material pressing device is provided with a blanking funnel, a material barrel and a piston rod, wherein a blanking port is arranged below the blanking funnel in the vertical direction and is fixedly connected with the material inlet; the charging basket is arranged above the blanking funnel, and an accommodating space is formed inside the charging basket for accommodating a plastic; the front end of the piston rod is provided with a material pressing plate.

In the above injection molding system, the pressing plate may be tapered to match the shape of the material-dropping funnel.

Based on the above, in operation, the piston rod from top to bottom extrudes the plastic placed in the containing space by the pressure plate into the blanking funnel, and the plastic falls into the gap of the injection tube through the blanking port and the feeding port, and is pushed to the material storage space through the gap, and when the push rod is driven by the driving source to push in parallel, the plastic is injected into the mold through the injection nozzle for injection molding, so that the fiber in the plastic can be prevented from being damaged, the product strength can be increased, and the qualification rate can be improved.

The utility model discloses advantage and beneficial effect lie in: the system can avoid damaging fibers in the semi-solid composite fiber plastic in the automatic pressurizing, feeding and plastic ejecting processes, and can increase the strength of a thermosetting (BMC) product and improve the qualification rate.

[ description of the drawings ]

Fig. 1 is a perspective view of a conventional art.

Fig. 2 is a sectional view of a conventional art.

Fig. 3 is a sectional view of a conventional shooting pot.

Fig. 4 is a perspective view of a conventional screw.

Fig. 5 is a perspective view of an embodiment of the present invention.

Fig. 6 is a cross-sectional view of an embodiment of the invention.

Fig. 7 is a cross-sectional view of the injection pipe according to the embodiment of the present invention.

Fig. 8 is a perspective view of a push rod according to an embodiment of the present invention.

Fig. 9 is an operation diagram (one) of fig. 6.

Fig. 10 is a schematic diagram (two) of the operation of fig. 6.

The numbers in the figures illustrate the following:

fixed wall 20 of machine table 2 of thermosetting injection molding system 1

Injection tube 30 of injection device 3 of mold 21

Driving source 31 nozzle 32 inlet 33

Screw 34 thread 35 gap 36

40 charging baskets 41 of blanking funnel of pressing device 4

Piston rod 42 blanking port 43 accommodating space 44

Pressure plate 45 plastic A

Fixed wall 60 of machine table 6 of continuous fiber injection molding system 5

Injection tube 70 of injection device 7 of mold 61

Driving source 71 nozzle 72 feed port 73

Pusher 74 gap 75 magazine 76

Material pressing device 8 blanking funnel 80 material barrel 81

Piston rod 82 blanking port 83 accommodating space 84

Pressure plate 85 Plastic B

[ detailed description ] embodiments

The articles "a" and "an" as referred to in the specification and claims may generally refer to a single or a plurality unless the article is specifically defined in the specification. This statement is made first.

Referring to fig. 5-8, a fiber-uninterrupted injection molding system 5 of an injection molding machine according to an embodiment of the present invention includes a machine table 6, an injection device 7 and a pressing device 8; the machine table 6 has a fixed wall 60 and a mold 61, the fixed wall 60 is disposed on the machine table 6, and the mold 61 is disposed on one side of the fixed wall 60; the injection device 7 is installed on the machine table 6, and has an injection pipe 70 and a driving source 71, wherein one end of the injection pipe 70 has an injection nozzle 72, and the top end of the injection pipe 70 has a feeding port 73; a push rod 74 is arranged in the injection pipe 70, a gap 75 is formed between the push rod 74 and the inner wall of the injection pipe 70, and a material storage space 76 is formed at the front end; the driving source 71 is disposed at the rear end of the push rod 74 and connected to drive the push rod 74 to move forward or backward; the material pressing device 8 is provided with a blanking funnel 80, a material barrel 81 and a piston rod 82, a blanking port 83 is arranged below the blanking funnel 80 in the vertical direction, and the blanking port 83 is fixedly connected with the material inlet 73; the charging basket 81 is disposed above the discharging funnel 80, and has an accommodating space 84 therein for accommodating a plastic B; the front end of the piston rod 82 is provided with a material pressing plate 85;

the pressing plate 85 is tapered and fits the shape of the feeding funnel 80, and presses the plastic B into the feeding opening 83, so that the plastic B has better compactness.

Referring to fig. 9 and 10, in operation, the piston rod 82 presses the material-pressing plate 85 from top to bottom to extrude the plastic B placed in the containing space 84 into the material-dropping funnel 80, through the material-dropping opening 83 and the material-feeding opening 73, into the gap 75 between the material-injecting pipes 70, through the gap 75 to be pushed into the material-storing space 76, and then the driving source 71 drives the push rod 74 to push in parallel, so that the plastic B is injected into the mold 61 through the injection nozzle 72 for injection molding.

Therefore, the injection molding product meets the diversified and customized requirements, the push rod 74 is arranged in the injection pipe 70, the driving source 71 drives the push rod 74 to move forwards and backwards in parallel, and the situation that fibers in the plastic B are broken due to rotation in the conveying process of the plastic B can be avoided, so that the product strength can be increased, and the qualified rate can be improved.

Claims

1. An injection molding system for injection molding machine without fiber breakage, comprising:

the machine table is provided with a fixed wall and a mold, the fixed wall is arranged on the machine table, and the mold is arranged on one side of the fixed wall;

the injection device is arranged on the machine table and is provided with an injection pipe and a driving source, one end of the injection pipe is provided with an injection nozzle, and the top end of the injection pipe is provided with a feeding hole; a push rod is arranged in the material injection pipe, a gap is formed between the push rod and the inner wall of the material injection pipe, and a material storage space is formed at the front end of the material injection pipe; the driving source is arranged at the rear end of the push rod and connected with the push rod; and

the pressing device is provided with a blanking funnel, a material barrel and a piston rod, a blanking port is arranged below the blanking funnel in the vertical direction, and the blanking port is fixedly connected with the feeding port; the charging basket is arranged above the blanking funnel, and an accommodating space is formed inside the charging basket for accommodating a plastic; the front end of the piston rod is provided with a material pressing plate.

2. The fiber-free injection molding system of an injection molding machine according to claim 1, wherein: the material pressing plate is in a conical shape and is matched with the blanking funnel in shape.