CN220464664U - Long fiber reinforced polypropylene injection molding device - Google Patents
Long fiber reinforced polypropylene injection molding device Download PDFInfo
- Publication number
- CN220464664U CN220464664U CN202321838084.7U CN202321838084U CN220464664U CN 220464664 U CN220464664 U CN 220464664U CN 202321838084 U CN202321838084 U CN 202321838084U CN 220464664 U CN220464664 U CN 220464664U
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- bin
- thinning
- long fiber
- injection molding
- fiber reinforced
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 34
- 239000004743 Polypropylene Substances 0.000 title claims abstract description 30
- 239000000835 fiber Substances 0.000 title claims abstract description 29
- -1 polypropylene Polymers 0.000 title claims abstract description 29
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 29
- 238000010438 heat treatment Methods 0.000 claims abstract description 38
- 238000000465 moulding Methods 0.000 claims abstract description 38
- 230000007246 mechanism Effects 0.000 claims abstract description 28
- 238000001125 extrusion Methods 0.000 claims abstract description 24
- 238000007599 discharging Methods 0.000 claims abstract description 18
- 238000005485 electric heating Methods 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims description 30
- 238000007493 shaping process Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 claims 1
- 238000007670 refining Methods 0.000 description 14
- 239000000463 material Substances 0.000 description 11
- 239000000243 solution Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a long fiber reinforced polypropylene injection molding device, which comprises a molding bin, wherein a discharging bin is arranged on the outer wall of the molding bin, an extrusion auger axially distributed along the molding bin is rotationally arranged in the molding bin, a heating mechanism is arranged on the outer wall of the molding bin and comprises a heating wire arranged on the outer wall of the molding bin and a heating bin arranged outside the heating wire, and the outer wall of the heating bin is connected with an electric heating device.
Description
Technical Field
The utility model relates to the technical field of preparation of long fiber reinforced polypropylene, in particular to a long fiber reinforced polypropylene injection molding device.
Background
The engineering plastic can be used as engineering material and plastic for replacing metal manufacturing machine parts and the like, has excellent comprehensive properties such as high rigidity, small creep, high mechanical strength, good heat resistance and good electrical insulation, can be used for a long time in harsh chemical and physical environments, and can be used as engineering structural material instead of metal. The long fiber polypropylene material (LFTPP) is a material formed by soaking a PP base material through a specially designed die, cooling, shaping, traction and granulating. The material has the characteristics of low warpage, stable size, impact resistance, creep resistance and the like, is widely applied to automobile parts such as instrument board frameworks, front section frameworks, engine covers, engine ground guard plates and the like, and is an important application material for automobile weight reduction. The long fiber reinforced polypropylene material is generally prepared by putting raw materials into an injection molding machine to be molded into strips, and has high requirement on injection molding temperature in the injection molding process, so that the raw materials in an injection molding machine body are required to be effectively heated; in addition, since there are cases where there are differences in the sizes of raw materials to be fed into the injection molding machine, there are cases where raw materials enter into a molding bin of the injection molding machine to be caught, thereby affecting the normal use of the injection molding machine.
Disclosure of Invention
The utility model aims to provide a long fiber reinforced polypropylene injection molding device for realizing injection molding of long fiber polypropylene composite materials.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the long fiber reinforced polypropylene injection molding device comprises a molding bin, wherein the molding bin is connected with a discharging bin, an extrusion auger axially distributed along the molding bin is rotationally arranged in the molding bin, a heating mechanism is arranged on the outer wall of the molding bin, the heating mechanism comprises a heating wire arranged on the outer wall of the molding bin and a heating bin arranged outside the heating wire, and the heating bin is connected with an electric heating device;
the long fiber polypropylene material enters a forming bin from a discharging bin, is extruded by an extrusion auger after being heated and melted in the forming bin, and is subjected to injection molding.
Further, the discharging pipe is arranged at the top of the discharging bin, a refining bin is arranged at one end, far away from the discharging bin, of the discharging pipe, a refining mechanism is arranged in the refining bin, a discharging hopper is arranged at the top of the refining bin, and a power mechanism for driving the refining mechanism to act is arranged on the outer wall of the refining bin.
Further, the power mechanism comprises a gear bin arranged on the side wall of the refinement bin, a first gear arranged on the inner wall of the gear bin in a rotating mode, and second gears symmetrically meshed with the first gear and arranged on two sides of the first gear, one end, far away from the refinement bin, of the first gear shaft is connected with a belt in a transmission mode, and one end, far away from the first gear, of the belt is connected with an extrusion auger shaft in a transmission mode.
Further, the thinning mechanism comprises a thinning roller which is rotatably arranged on the second gear shaft and positioned in the thinning bin, and a plurality of uniformly distributed thinning teeth are arranged on the roller body of the thinning roller along the circumferential direction.
Further, the refinement bin is fixed on the blanking bin through a group of brackets.
Further, the extrusion end of the molding bin is connected with a molding machine, and the molding machine is used for conveying long fiber polypropylene composite material strips.
Further, the heating wire is spirally arranged on the outer wall of the forming bin.
Further, the long fiber reinforced polypropylene injection molding device further comprises a base, and the base is provided with a motor for driving the extrusion auger to rotate.
Preferably, one end of the molding bin, which is far away from the motor, is provided with a one-way valve.
The beneficial effects are that: according to the utility model, the heating wire is arranged on the outer wall of the forming bin and extends along the length direction of the forming bin, so that raw materials entering the forming bin can be effectively melted, the raw materials are rapidly melted, meanwhile, the melted raw materials are extruded from the output end of the forming bin by combining with the rotation of the extrusion auger along the forming bin, the injection molding efficiency of the long fiber reinforced polypropylene is effectively improved, in addition, the one-way valve is arranged on the forming bin, the backflow of raw material solution can be avoided, and the formed materials can be accurately and effectively discharged out of the forming bin. Secondly, this long fiber reinforced polypropylene injection molding device through the setting of refining the storehouse, utilizes first gear to drive the second gear and rotates, simultaneously, drives the roller that refines that is located the storehouse of refining and rotates, utilizes the tooth of refining in order to break the raw materials that enter into the storehouse of refining to avoided the raw materials direct entry shaping storehouse of different size, solved shaping storehouse and blocked by the raw materials easily, the unable quick, high-efficient injection molding's of great piece raw materials problem.
Drawings
FIG. 1 is a cut-away view of the present utility model;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is a schematic view of the heating mechanism of FIG. 1 connected to a forming bin;
FIG. 4 is a perspective view of the present utility model;
FIG. 5 is a schematic structural view of a refinement bin;
FIG. 6 is a side view of the present utility model;
fig. 7 is a schematic view of a refining mechanism.
In the figure: 1. a base; 2. a heating bin; 3. a heating wire; 4. a molding bin; 5. extruding an auger; 6. an electric heating device; 7. a one-way valve; 8. a power mechanism; 9. discharging the material bin; 10. a discharge pipe; 11. a bracket; 12. refining the bin; 13. discharging a hopper; 14. a gear bin; 15. a motor; 16. a belt; 17. a thinning roller; 18. thinning teeth; 19. a first gear; 20. a second gear; 21. and (5) a molding machine.
Detailed Description
The present utility model will be described in detail below with reference to the drawings and detailed embodiments, and before the technical solutions of the embodiments of the present utility model are described in detail, the terms and terms involved will be explained, and in the present specification, the components with the same names or the same reference numerals represent similar or identical structures, and are only limited for illustrative purposes.
Example 1:
referring to fig. 1 and 4, a long fiber reinforced polypropylene injection molding device comprises a molding bin 4, the outer wall of the molding bin 4 is provided with a lower bin 9, an extrusion auger 5 axially distributed along the molding bin is rotationally arranged in the molding bin 4, the outer wall of the molding bin 4 is further provided with a heating mechanism, the heating mechanism comprises a heating wire 3 axially extending along the outer wall of the molding bin 4 and a heating bin 2 arranged at the periphery of the heating wire 3, in addition, the outer wall of the heating bin 2 is connected with an electric heating device 6 electrically connected with the heating wire 3, when the long fiber reinforced polypropylene injection molding device is used, raw materials enter the molding bin 4 through the lower bin 9, are melted by the heating mechanism axially arranged along the outer wall of the molding bin 4, and meanwhile, the raw materials are extruded to the output end of the molding bin 4 in cooperation with the rotation of the extrusion auger 5, so that the raw materials are melted, and injection molding is convenient.
Referring to fig. 3, it should be noted that the heating wire 3 may be specifically disposed on the outer wall of the forming bin 4 in a spiral shape and located inside the heating bin 2, so that the raw materials in the forming bin 4 can be heated in all directions, and meanwhile, the heating bin 2 can prevent the heat of the heating wire 3 from being emitted outwards, so as to achieve the purpose of fully utilizing the heat of the heating wire.
The electric heating device 6 is a power source for supplying power to the heating wire 3, and when in use, the heating wire 3 is heated to a set temperature by the electric heating device 6, so that the raw material in the molding bin 4 is heated by the heating wire 3.
Referring to fig. 2 and 6, as a preferred technical solution of the present utility model, the top of the lower bin 9 is provided with a discharging pipe 10, one end of the discharging pipe 10 away from the lower bin 9 is provided with a thinning bin 12, a thinning mechanism is disposed in the thinning bin 12, the top of the thinning bin 12 is provided with a lower hopper 13, the outer wall of the thinning bin 12 is provided with a power mechanism 8 for driving the thinning mechanism to act, further, the power mechanism 8 includes a gear bin 14 disposed on the side wall of the thinning bin 12, a first gear 19 rotatably disposed on the inner wall of the gear bin 14, and second gears 20 symmetrically meshed with the first gear 19, and it is noted that the second gears 20 are also rotatably disposed on the inner wall of the gear bin 14, and when in use, the first gear 19 rotates, the second gears 20 on both sides are driven to rotate, thereby driving the thinning mechanism in the thinning bin 12 to crush the raw materials entering the thinning bin 12, so that the raw materials are uniform in size.
Further, a belt pulley is fixedly sleeved at one end, far away from the thinning bin 12, of the shaft of the first gear 19, a belt 16 is connected to the belt pulley in a transmission manner, one end, far away from the first gear 19, of the belt 16 is connected with the extrusion auger 5 in a transmission manner, and specifically, the belt pulley can be arranged on the shaft of the extrusion auger 5, so that when the extrusion auger 5 rotates, the belt can synchronously drive the shaft of the first gear 19 to rotate, and further the thinning mechanism is driven to act.
Further, referring to fig. 5 and 7, the thinning mechanism includes a thinning roller 17 rotatably mounted on the shaft of the second gear 20 and located in the thinning bin 12, and a plurality of uniformly distributed thinning teeth 18 are circumferentially arranged on the roller body of the thinning roller 17, so that when the shaft of the second gear 20 rotates, the thinning roller 17 is driven to rotate to crush the raw materials, so that the raw materials can be thinned in larger blocks before entering the forming bin 4, and the raw materials can be melted quickly after entering the forming bin 4.
Further, in order to fix the thinning bin 12, the thinning bin 12 is fixed on the discharging bin 9 through a set of brackets 11, and in order to shape and shape the raw materials extruded from the forming bin 4, a shaping machine 21 is connected to the extrusion end of the forming bin 4.
Further, in order to realize supporting equipment such as the molding bin 4, the long fiber reinforced polypropylene injection molding device further comprises a base 1, a motor 15 for driving the extrusion auger 5 to rotate is arranged on the base 1, in addition, in order to prevent molten liquid in the molding bin 4 from being orderly discharged from the extrusion end of the molding bin 4, a one-way valve 7 is arranged at one end, far away from the motor 15, of the molding bin 4, and the one-way valve 7 also has the function of preventing liquid backflow.
When the device is used, firstly, the motor 15 is started, the motor 15 drives the extrusion auger 5 to spirally rotate along the inner cavity of the forming bin 4, raw materials are poured into the blanking hopper 13, the extrusion auger 5 drives the first gear 19 to rotate through the belt 16 when rotating, the first gear 19 drives the second gears 20 on two sides to rotate, the second gears 20 refine the raw materials through the refining roller 17 and the refining teeth 18, so that the raw materials are uniform, the refined raw materials enter the blanking bin 9 and then reach the forming bin 4, and are conveyed outwards along with the extrusion auger 5, meanwhile, the heating wire 3 arranged on the outer wall of the forming bin 4 heats and melts the raw materials, the melted liquid raw materials enter the forming machine 21 for injection molding through the extrusion auger 5, and the long fiber reinforced polypropylene injection molding device is reasonable in design, convenient to use and capable of improving the product quality.
The above-described embodiments are merely illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solution of the present utility model should fall within the scope of protection defined by the claims of the present utility model without departing from the spirit of the present utility model.
Claims (8)
1. The utility model provides a long fiber reinforced polypropylene injection molding device, includes shaping storehouse (4), its characterized in that, shaping storehouse (4) are connected with lower feed bin (9), shaping storehouse (4) internal rotation is equipped with along shaping storehouse (4) axial distribution's extrusion auger (5), and is provided with heating mechanism at shaping storehouse (4) outer wall, heating mechanism includes heater strip (3) and heating storehouse (2) of setting at heater strip (3) outlying along shaping storehouse (4) outer wall axial extension, heating storehouse (2) outer wall is connected with electric heating device (6) with heater strip (3);
the long fiber polypropylene raw material enters a forming bin (4) from a discharging bin (9), is extruded by an extrusion auger (5) after being heated and melted in the forming bin (4), and is subjected to injection molding;
the upper portion of the discharging bin (9) is in butt joint with a discharging pipe (10), the other end of the discharging pipe (10) is provided with a thinning bin (12), a thinning mechanism is arranged in the thinning bin (12), a discharging hopper (13) is arranged at the top of the thinning bin (12), and a power mechanism (8) for driving the thinning mechanism to act is arranged on the outer wall of the thinning bin (12).
2. The long fiber reinforced polypropylene injection molding device according to claim 1, wherein the power mechanism (8) comprises a gear bin (14) arranged on the side wall of the thinning bin (12), a first gear (19) rotatably arranged on the inner wall of the gear bin (14), and second gears (20) symmetrically meshed with the two sides of the first gear (19), one end of a shaft of the first gear (19) far away from the thinning bin (12) is in transmission connection with a belt (16), and one end of the belt (16) far away from the first gear (19) is in transmission connection with a shaft of the extrusion auger (5).
3. The long fiber reinforced polypropylene injection molding apparatus of claim 1, wherein the thinning mechanism comprises a thinning roller (17) rotatably mounted on the shaft of the second gear (20) and positioned in the thinning bin (12), and a roller body of the thinning roller (17) is provided with a plurality of uniformly distributed thinning teeth (18) along the circumferential direction.
4. The long fiber reinforced polypropylene injection molding apparatus according to claim 1, wherein the attenuating bin (12) is fixed to the lower bin (9) by a set of brackets (11).
5. The long fiber reinforced polypropylene injection molding device according to claim 1, wherein the extrusion end of the molding bin (4) is connected with a molding machine (21), and the molding machine (21) is used for conveying long fiber polypropylene composite material strips.
6. The long fiber reinforced polypropylene injection molding apparatus according to claim 1, wherein the heating wire (3) is spirally disposed at an outer wall of the molding bin (4).
7. The long fiber reinforced polypropylene injection molding apparatus according to claim 1, further comprising a base (1), the base (1) being provided with a motor (15) for driving the extrusion screw (5) to rotate.
8. The long fiber reinforced polypropylene injection molding apparatus according to claim 1, wherein the molding bin (4) is provided with a check valve (7) at an end remote from the motor (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321838084.7U CN220464664U (en) | 2023-07-13 | 2023-07-13 | Long fiber reinforced polypropylene injection molding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321838084.7U CN220464664U (en) | 2023-07-13 | 2023-07-13 | Long fiber reinforced polypropylene injection molding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220464664U true CN220464664U (en) | 2024-02-09 |
Family
ID=89778475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321838084.7U Active CN220464664U (en) | 2023-07-13 | 2023-07-13 | Long fiber reinforced polypropylene injection molding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220464664U (en) |
-
2023
- 2023-07-13 CN CN202321838084.7U patent/CN220464664U/en active Active
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