TWM608307U - Fiber-not-broken injection system of injection molding machine - Google Patents

Abstract

A continuous fiber injection molding system for an injection molding machine, including a machine, an injection device, and a pressing material Device; the machine has a fixed wall and a mold, the fixed wall is set on the machine, the mold is set on one side of the fixed wall; the injection device is installed on the machine, with an injection tube And a driving source, one end of the injection tube has an injection nozzle, the top end of the injection tube has an inlet; the injection tube is provided with a push rod, and there is between the push rod and the inner wall of the injection tube A gap, the front end forms a storage space; the driving source is arranged at the rear end of the push rod and connected; the pressing device has a blanking hopper, a barrel, and a piston rod, and the blanking hopper is arranged vertically downward There is a blanking port, the blanking port is connected and fixed with the inlet; the barrel is set above the blanking funnel, and there is a accommodating space inside for a plastic to be placed; the front end of the piston rod is provided with a pressing material Plate: Driven by the drive source to drive the push rods to push in parallel, it can avoid damaging the fibers in the plastic, increase product strength and improve yield.

Description

Continuous fiber injection molding system of injection molding machine

This creation is to provide a continuous fiber injection molding system for an injection molding machine, especially a composite fiber plastic that can avoid damaging the fibers in the plastic during the process of automatic pressure feeding and plastic injection, which can increase product strength and improve yield.

According to the current demand for diversification and customization of products, such as car lampshades, electrical appliances and other products, the materials injected by the injection molding machine are no longer a single variety or a single shape, but a composite material of multiple varieties and multiple shapes. These composite materials are first mixed and stirred to make the plastic powder and fiber uniformly mixed. For example, the thermosetting bulk molding compound (BMC) composed of inert fillers, glass fiber reinforced materials, catalysts, stabilizers and pigments has been widely used in In the field of manufacturing various plastic products.

1 to 4, the conventional thermosetting injection molding system 1 includes a machine 2, an injection device 3, and a pressing device 4; the machine 2 has a fixed wall 20 and a mold 21, the fixed wall 20 is installed on the machine 2 and the mold 21 is installed on the side of the fixed wall 20; the injection device 3 is installed on the machine 2 and has an injection tube 30 and a driving source 31. One end of the tube 30 has an injection nozzle 32, the top of the injection tube 30 has an inlet 33; the injection tube 30 is provided with a screw 34 inside, the outer ring of the screw 34 has a thread 35, the screw 34 and the injection There is a gap 36 between the inner walls of the tube 30; the driving source 31 (for example, a motor) is arranged at the rear end of the screw 34 and connected to drive the screw 34 to rotate and push; the pressing device 4 has a blanking hopper 40, A material bucket 41 and a piston rod 42 are provided with a material discharge port 43 below the vertical direction of the material discharge hopper 40, and the material material discharge port 43 is connected and fixed with the material inlet 33; the material tank 41 is arranged in the material discharge hopper Above 40, there is an accommodating space 44 inside for placing a plastic A; the front end of the piston rod 42 is provided with a pressing plate 45. When actuated, the piston rod 42 moves from top to bottom so that the pressing plate 45 will be placed The plastic A in the accommodating space 44 is squeezed into the blanking hopper 40, passing through the blanking port 43 and the inlet 33, and falling into the gap 36 of the material tube 30, and then the screw 34 is driven by the driving source 31 When rotating and pushing, the plastic A is injected into the mold 21 through the 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, and inject it into the mold 21 through the nozzle 32 for injection molding, and the thread 35 is easy to make the composite fiber The plastic A fibers are broken, resulting in insufficient strength of the product after injection molding, resulting in a problem of poor yield.

In view of the above-mentioned shortcomings, this creator carried out in-depth R&D and improvement. After a long period of hard work, this creation came into being.

Yes, this creation is to provide a semi-solid composite fiber plastic in the process of automatic pressure feeding and plastic injection, which can avoid damaging the fibers in the plastic, increase the strength of the thermosetting (BMC) product and improve the yield rate of injection molding. The machine's continuous fiber injection molding system.

To achieve the above purpose, the continuous fiber injection molding system of the creative injection molding machine includes a machine, an injection device and a pressing device; the machine has a fixed wall and a mold, and the fixed wall is set on the machine , The mold is set on one side of the fixed wall; the injection device is installed on the machine, has an injection tube and a drive source, the injection tube has an injection nozzle at one end, and the injection tube has a top end Inlet; the injection tube is provided with a push rod inside, there is a gap between the push rod and the inner wall of the injection tube, and a storage space is formed at the front end; the driving source is arranged at the rear end of the push rod and connected The pressing device has a blanking hopper, a barrel and a piston rod, and a blanking opening is arranged below the vertical direction of the blanking hopper, and the blanking opening is connected and fixed with the inlet; the barrel is set in the Above the blanking funnel, there is an accommodating space inside for placing a plastic; the front end of the piston rod is provided with a pressing plate.

In the above-mentioned continuous fiber injection molding system of the injection molding machine, the pressing plate may be in a cone shape, which is consistent with the shape of the blanking hopper.

Based on the above, when actuated, the piston rod is moved from top to bottom, so that the pressure plate will squeeze the plastic placed in the accommodating space into the blanking hopper, passing through the blanking opening and the material inlet, and falling into the incident In the gap of the material pipe, it is pushed to the storage space through the gap, and then when the drive source drives the push rod to push in parallel, the plastic is injected into the mold through the nozzle for injection molding, which can avoid damaging the fibers in the plastic, and increase the strength of the product. Yield.

In order to achieve the above-mentioned purpose, the technical means adopted and the achievable effects of this creation are described in detail with the following preferred and feasible embodiments in conjunction with the accompanying drawings, so as to fully understand. In addition, the publicly known elements and steps are not described in the embodiment, so as to avoid unnecessary restrictions on the creation. Affirm this first.

The articles "a" and "the" mentioned in the embodiments and the scope of patents can generally refer to a single or plural articles, unless there are special restrictions on the articles in the specification. Affirm this first.

Please refer to Figures 5-8, the continuous fiber injection molding system 5 of the injection molding machine of the present creative embodiment includes a machine 6, an injection device 7 and a pressing device 8; the machine 6 has a fixed wall 60 and a Mold 61, the fixed wall 60 is set on the machine table 6, the mold 61 is set on the side of the fixed wall 60; the injection device 7 is installed on the machine table 6, with an injection tube 70 and a drive Source 71, one end of the injection tube 70 has a nozzle 72, the top of the injection tube 70 has an inlet 73; the injection tube 70 is provided with a push rod 74 inside, the push rod 74 and the injection tube 70 There is a gap 75 between the inner walls, and a storage space 76 is formed at the front end; the driving source 71 is arranged at the rear end of the push rod 74 and is connected to drive the push rod 74 forward or backward; the material pressing device 8 has A blanking hopper 80, a barrel 81, and a piston rod 82. A blanking port 83 is provided below the blanking hopper 80 in the vertical direction, and the blanking port 83 is connected and fixed with the inlet 73; the bin 81 It is arranged above the blanking hopper 80, and has an accommodating space 84 inside for placing a plastic B; the front end of the piston rod 82 is provided with a pressing plate 85;

The pressing plate 85 has a cone shape, which is consistent with the shape of the blanking hopper 80, and squeezes the plastic B into the blanking opening 83, so that the plastic B has a better compactness.

Please refer to Figures 9 and 10, when the piston rod 82 moves from top to bottom, the pressing plate 85 squeezes the plastic B placed in the accommodating space 84 into the blanking hopper 80 through the blanking port 83 and the feed port 73, and fall into the gap 75 of the material tube 70, and push it to the storage space 76 through the gap 75, and then drive the push rod 74 by the drive source 71 to push in parallel, so that the plastic B is injected through the nozzle 72 The mold 61 is injection molded.

Therefore, the injection molding products can meet the diversified and customized requirements. The push rod 74 is provided inside the injection tube 70, and the drive source 71 drives the push rod 74 to move forward and backward in parallel, which can prevent the plastic B from being transported during the transportation process. Rotating and breaking the fibers in plastic B can increase product strength and improve yield.

In summary, this creation can indeed achieve the expected function and purpose, and the detailed description can enable those who are familiar with this skill to implement it. However, the above examples are only used to illustrate this creation, and all equivalent structures are mentioned. The change still does not deviate from the scope of rights of this creation.

(Acquaintance) 1: Thermosetting injection molding system 2: Machine 20: fixed wall 21: Mould 3: Injection device 30: Injection tube 31: drive source 32: Nozzle 33: Inlet 34: Screw 35: Thread 36: Clearance 4: Pressing device 40: Blanking funnel 41: Barrel 42: Piston rod 43: blanking port 44: accommodating space 45: pressure plate A: Plastic (This creation) 5: Continuous fiber injection molding system 6: Machine 60: fixed wall 61: Mould 7: Injection device 70: Injection tube 71: drive source 72: Shooting Mouth 73: Inlet 74: putter 75: gap 76: storage space 8: Pressing device 80: Blanking funnel 81: Barrel 82: Piston rod 83: blanking port 84: accommodating space 85: pressure plate B: Plastic

Figure 1 is a three-dimensional view of conventional knowledge. Figure 2 is a cross-sectional view of the conventional art. Figure 3 is a cross-sectional view of a conventional injection tube. Figure 4 is a perspective view of a conventional screw. Figure 5 is a three-dimensional view of this creative embodiment. Figure 6 is a cross-sectional view of this creative embodiment. Figure 7 is a cross-sectional view of the injection tube of this creative embodiment. Figure 8 is a three-dimensional view of the putter of this creative embodiment. Fig. 9 is a schematic diagram of the action of Fig. 6 (1). Fig. 10 is a schematic diagram of the action of Fig. 6 (2).

5: Continuous fiber injection molding system

6: Machine

60: fixed wall

61: Mould

7: Injection device

70: Injection tube

71: drive source

72: Shooting Mouth

73: Inlet

74: putter

75: gap

76: storage space

8: Pressing device

80: Blanking funnel

81: Barrel

82: Piston rod

83: blanking port

84: accommodating space

85: pressure plate

B: Plastic

Claims (2)

A continuous fiber injection molding system for an injection molding machine, which includes: A machine table, the machine table has 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; An injection device is installed on the machine and has an injection tube and a drive source. The injection tube has an injection nozzle at one end, and the top of the injection tube has an inlet; There is a push rod, a gap is formed between the push rod and the inner wall of the injection tube, and a storage space is formed at the front end; the driving source is arranged at the rear end of the push rod and connected; and A material pressing device, the material pressing device has a blanking hopper, a barrel and a piston rod. A blanking opening is arranged below the blanking hopper in the vertical direction, and the blanking opening is connected and fixed with the material inlet; The barrel is arranged above the blanking funnel, and has an accommodating space inside for placing a plastic; the front end of the piston rod is provided with a pressing plate. The continuous fiber injection molding system of an injection molding machine according to claim 1, wherein the pressing plate may have a cone shape, which is consistent with the shape of the blanking hopper.

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