AU2019100508A4 - High-strength injection molded parts, high-strength injection molded parts processing equipment and process - Google Patents

Abstract

The invention discloses a high-strength injection molded part, a high-strength injection molded part processing equipment and a process, comprising an upper surface layer, a lower surface layer and a reinforcing layer, the reinforcing layer being between the upper surface layer and the lower surface layer, the reinforcing layer including along Reinforcing fibers disposed in the same direction; and processing equipment and processes for producing the above-described high-strength injection molded parts. The invention can achieve the purpose of strengthening the strength of the injection molded part by adding one or more reinforcing fibers in the injection molded part, and the production process can be realized by a simple injection molding device and a machine, which is convenient and quick, saves production cost, and has high strength. The injection molded parts are produced in a line to save production costs. Maintaining the lower mold temperature during the production of the same injection molded part can raise and lower the bottom plate, adjust the thickness of the final molded part, improve the thickness of the reinforcing layer and the controllability of the number of layers; simplify the reinforcement in different directions in the injection molded part Layer steps to reduce processing steps. Figure 1 Figure 2

Description

High-strength injection molded parts, high-strength injection molded parts processing equipment and process

Technical field

The invention relates to the technical field of injection molded parts, in particular to a high-strength injection molded part, a high-strength injection molded part processing equipment and a process.

Background technique

Injection molded parts are ubiquitous and have become an unattainable product in everyday life. However, many injection molded parts are made of materials such as polyethylene or polypropylene, and are prone to cracks and the like in daily use, and the strength is insufficient.

Summary of the invention

The object of the present invention is to provide a high-strength injection molded part, a high-strength injection molded part processing equipment and a process, which can enhance the strength of the injection molded part by adding one or more layers of reinforcing fibers to the injection molded part, and through simple Injection molding machines and machines enable production and processing, which is quick and easy and saves production costs.

In order to achieve the above object, the present invention adopts the following technical solution: a high-strength injection molded part comprising an upper skin layer, a lower surface layer and a reinforcing layer, the reinforcing layer being between the upper surface layer and the lower surface layer, the reinforcing layer comprising Reinforcing fibers placed in the same direction.

Compared with the prior art, a high-strength injection molded part adopting the above technical solution has the following beneficial effects: higher strength than ordinary injection molded parts, and different limiting layers can be added for different requirements, The ability to add different layers to the desired high-strength injection molded parts.

Further preferably, the reinforcing layer is provided with a plurality of layers, and reinforcing fibers of each reinforcing layer are arranged in different directions.

As a further preference, an isolation layer is provided between each of the reinforcing layers.

In order to achieve the above object, the present invention also employs a production apparatus for producing the above high-strength injection molded parts, the technical proposal is: a high-strength injection molded part, including a raw material fixing device, a molding device, a feeding device, an injection device, and a shearing device. The device, wherein the raw material fixing device is used for fixing the reinforcing fibers to ensure that the reinforcing fibers are in the same direction; the forming device is located behind the raw material fixing device for shaping the dispersed reinforcing fibers to form a reinforcing layer for reinforcing the structure of the injection molded part, The reinforcing fibers in the reinforcing layer have the same direction; the feeding device is for feeding the reinforcing fibers or the reinforcing layer to the injection molding device; the shearing device is for cutting the reinforcing fibers after the injection molding; the injection molding device comprises a mold and a storage mechanism, the storage mechanism is located above the mold, the mold includes an upper mold and a lower mold, the bottom plate of the lower mold is set up and down, and the bottom plate is provided with a lifting mechanism for controlling the lifting of the bottom plate. The injection device further includes a rotating mechanism for driving the mold to rotate in a horizontal direction, the rotating machine It is fixed on the mold.

2019100508 09 May 2019

As a further preferred, a temperature control pipe for adjusting the temperature of the mold is provided in the mold.

As a further preferred, the number of temperature control pipes distributed by the lower die is higher than the number of temperature control pipes distributed in the upper die.

In order to achieve the above object, the present invention also adopts the following technical solution: a high-strength injection molded part production process,

Step 1: Forming the reinforcing fibers to form a reinforcing layer;

Step 2; fastening the reinforcing layer between the upper mold and the lower mold and clamping the mold;

Step 3: injecting injection molding material into the mold to form a first injection molded part; Step 4: keep the mold high temperature and cut off the reinforcing layer;

Step 5: Open the upper mold, repeat the steps 2 to 4 after rotating the mold until the specified thickness is reached;

Step 6: Cool the mold and demold to obtain a fully injection molded part.

Compared with the prior art, a high-strength injection molded part processing equipment and process adopting the above technical solution has the following beneficial effects:

First, the high-strength injection molded parts processing equipment and process of the invention are used to process the high-strength injection molded parts, thereby saving production costs.

2. The bottom plate at the bottom of the lower mold is set up and down. The temperature of the lower mold can be raised and lowered during the process of producing the same injection molded part, and the thickness of the finally formed injection molded part can be adjusted to improve the thickness and the number of layers of the reinforcing layer. Sex.

3. The rotating mechanism on the injection molding device can drive the mold to rotate through the optional mechanism, simplifying the step of mixing the reinforcing layers in different directions in the injection molded part, and reducing the processing steps.

DRAWINGS is a schematic structural view of an embodiment of a high strength injection molded part of the present invention;

Figure 2 is an enlarged view of A in Figure 1;

is a schematic structural view of a high-strength injection molded part processing apparatus in the embodiment;

Fig. 4 is a schematic view showing the mechanism of the injection molding apparatus in the embodiment.

Reference numerals: 11, upper surface layer; 12, lower surface layer; 13, reinforcing layer; 131, reinforcing fiber; 14, separation layer; 21, raw material fixing device; 22, molding device; 23, feeding device; 3, injection molding device; 31, mold; 311, upper mold; 312, lower mold; 313, bottom plate; 32, storage mechanism; 33, lifting mechanism; 34, rotating mechanism; 35, temperature control pipe.

Detailed ways

Embodiments of the present invention are described in more detail below with reference to the accompanying drawings. The embodiments are provided to make the invention more detailed and to fully convey the scope of protection to those skilled in the art. Numerous specific details are set forth, such as specific parts and devices, to provide a thorough understanding of the

2019100508 09 May 2019 embodiments of the invention. It is obvious to those skilled in the art that the embodiments may be embodied in many different forms and are not intended to limit the scope of the invention. In addition, elements and features described in one of the figures or one embodiment of the invention may be combined with elements and features illustrated in one or more other figures or embodiments. In some embodiments, well known processes, structures, and techniques are described in detail in the drawings and description.

A high-strength injection molded part as shown in FIGS. 1 and 2, from the bottom to the top, the lower layer 12, the first reinforcement layer 13, the separation layer 14, the second reinforcement layer 13, and the upper surface layer 11, wherein the first reinforcement The direction of the reinforcing fibers 131 in the layer 13 is different from the direction of the reinforcing fibers 131 in the second reinforcing layer 13, which are perpendicular to each other in this embodiment, and can be adjusted in actual production according to the production requirements and the number of layers of the specific reinforcing layer 13. The angle of the reinforcing fibers 131 in the adjacent reinforcing layer 13. The isolation layer 14 is disposed between the two adjacent reinforcement layers 13. In the actual processing, the isolation layer 14 is used to ensure that the injection molding material is sufficiently injected into the reinforcement layer 13 without voids to ensure product quality. The material of the isolation layer 14 may be changed according to the specific product, and may be the same as or different from the material of the upper surface layer 11 or the lower surface layer 12.

FIG. 3 shows a processing apparatus for processing the above-described high-strength injection molded parts, and FIG. 4 is a schematic view of the mechanism of the corresponding injection molding apparatus 3. The high-strength injection molded part processing apparatus comprises a raw material fixing device 21, a molding device 22, a feeding device 23, an injection molding device 3, and a shearing device 24, wherein the raw material fixing device 21 is used for fixing the reinforcing fibers 131 to ensure that the reinforcing fibers 131 are in the same direction. The molding device 22 is located after the material fixing device 21 for shaping the dispersed reinforcing fibers 131 to form the reinforcing layer 13 for reinforcing the structure of the injection molded part, and the reinforcing fibers 131 in the reinforcing layer 13 have the same course; the feeding device 23 is used for The reinforcing fiber 131 or the reinforcing layer 13 is fed to the injection device 3; the shearing device 24 is used for shearing the reinforced fiber 131 after the injection molding; the injection device 3 includes a mold 31 and a storage mechanism 32, and the storage mechanism 32 is located above the mold 31. The mold 31 includes an upper mold 311 and a lower mold 312. The bottom plate 313 of the lower mold 312 is vertically movable. The bottom plate 313 is provided with a lifting mechanism 33 for controlling the lifting and lowering of the bottom plate 313. The injection molding device 3 further includes a mold 31 for driving the mold 31. The rotating mechanism 34 is rotated in the direction, and the rotating mechanism 34 is fixed to the mold 31. The mold 31 is provided with a temperature control pipe 35 for adjusting the temperature of the mold 31. The number of the temperature control pipes 35 distributed by the lower mold 312 is higher than the number of the temperature control pipes 35 distributed in the upper mold 311.

The operation process of the processing equipment in Figures 3 and 4 will be described below in conjunction with the processing:

First, the reinforcing fibers 131 in the raw material fixing device 21 are fibers having the same fiber direction, and the reinforcing fibers 131 are conveyed to the molding device 22 to form the

2019100508 09 May 2019 reinforcing layer 13. The general molding method is press molding or high temperature molding, and different molding methods are determined according to different reinforcing fibers 131. Finally, a reinforcing layer 13 which can be used for injection molding of high-strength injection molded parts is formed.

Then, the reinforcing layer 13 is moved between the feeding device 23 and the upper and lower dies 312 of the injection molding device 3. Before the feeding, the bottom plate 313 of the lower mold 312 has been injection molded with a lower surface layer 12, and the bottom plate 313 is at the lifting mechanism 33. The downswing provides space for a new round of injection molding. After the reinforcing layer 13 enters the mold 31, the upper mold 311 and the lower mold 312 are clamped so that the reinforcing layer 13 is fastened to facilitate a new round of injection molding.

Then, the injection molding material is injected into the mold 31 to form a first injection molded part, at which time the high temperature is maintained, the reinforcing layer 13 is cut, and the bottom plate 313 is prepared to be next injection molded or moved up according to the demand to take the molded injection molded part out of the mold 31.

Wherein, if the injection molded part contains the plurality of reinforcing layers 13, the upper mold 311 can be opened as needed, the mold 31 is rotated, and the reinforcing layer 13 is again transported to the mold 31, so that the angles of the adjacent two reinforcing layers 13 are different, and finally Fully injection molded parts. In the process of injection molding, the hardness of the surface injection molding material of the lower mold 312 is maintained to ensure a stable connection between the different layers, and the temperature control of the lower mold 312 is critical, so that the temperature control pipeline of the lower mold 312 is more than the upper mold 311.

Claims (7)

1. There is only One page of Claim

   2019100508 09 May 2019

   1. A high-strength injection molded part comprising: an upper skin layer (11), a lower surface layer (12) and a reinforcing layer (13), the reinforcing layer (13) being opposite to the upper surface layer (11) and the lower surface layer ( Between 12), the reinforcing layer (13) comprises reinforcing fibers (131) arranged in the same direction.
2. 2. The high-strength injection molded part according to claim 1, characterized in that the reinforcing layer (13) is provided with a plurality of layers, and the reinforcing fibers (131) of each reinforcing layer (13) are arranged in different directions.
3. 3. A high-strength injection molded part according to claim 2, characterized in that a separating layer (14) is provided between each reinforcing layer (13).
4. 4. A high-strength injection molded part processing apparatus, comprising: a raw material fixing device (21), a molding device (22), a feeding device (23), an injection molding device (3), and a shearing device (24),

   Wherein, the raw material fixing device (21) is used for fixing the reinforcing fibers (131) to ensure that the reinforcing fibers (131) are in the same direction;

   The forming device (22) is located after the material holding device (21) for shaping the dispersed reinforcing fibers (131) to form a reinforcing layer (13) for reinforcing the structure of the injection molded part, in the reinforcing layer (13) The reinforcing fibers (131) have the same orientation;

   The feeding device (23) is for feeding the reinforcing fiber (131) or the reinforcing layer (13) to the injection device (3);

   The shearing device (24) is used for shearing the reinforced fiber (131) after injection molding; The injection device (3) comprises a mold (31) and a stocking mechanism (32), the stocking mechanism (32) being located above the mold (31), the mold (31) comprising an upper mold (311) and a lower mold (312), the bottom plate (313) of the lower die (312) is set up and down, and the bottom plate (313) is provided with a lifting mechanism (33) for controlling the lifting and lowering of the bottom plate (313), and the injection molding device (3) It also includes a rotating mechanism (34) for driving the mold (31) to rotate in the horizontal direction, the rotating mechanism (34) being fixed to the mold (31).
5. 5. The high-strength injection molded part processing apparatus according to claim 4, wherein the mold (31) is provided with a temperature control pipe (35) for adjusting the temperature of the mold (31).
6. 6. The high-strength injection molded part processing apparatus according to claim 5, wherein the lower mold (312) distributes the number of temperature control pipes (35) higher than the temperature control pipes distributed in the upper mold (311) ( 35).
7. 7. A high-strength injection molded part production process characterized by:

   Step 1: shaping the reinforcing fiber (131) to form a reinforcing layer (13);

   Step 2; fastening the reinforcement layer (13) between the upper mold (311) and the lower mold (312) and clamping the mold (31);

   Step 3: injecting injection molding material into the mold (31) to form a first injection molded part;

   Step 4: keeping the mold (31) at a high temperature, cutting the reinforcing layer (13);

   Step 5: Open the upper mold (311), rotate the mold (31) and repeat steps 2 to 4 until the injection molded part reaches the specified thickness;

   Step 6: Cool the mold (31) and demold to obtain a completely injection molded part.