CN213564174U - Injection molding mechanism - Google Patents
Injection molding mechanism Download PDFInfo
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- CN213564174U CN213564174U CN202022376555.XU CN202022376555U CN213564174U CN 213564174 U CN213564174 U CN 213564174U CN 202022376555 U CN202022376555 U CN 202022376555U CN 213564174 U CN213564174 U CN 213564174U
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- charging barrel
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- injection molding
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Abstract
The utility model discloses an injection molding mechanism, which comprises a feeding bin body, a charging barrel and a spiral pushing rod, wherein the feeding bin body is communicated with the upper part of the right end of the charging barrel; the spiral pushing rod is arranged in the inner cavity of the charging barrel, the right end of the spiral pushing rod penetrates through the side wall of the gear box and the side wall of the charging barrel and is arranged on the side wall of the charging barrel, a driving bevel gear is arranged on a rod body of the right end of the spiral pushing rod, the upper part of the driving bevel gear is meshed with a driven bevel gear, the driven bevel gear is fixedly connected with a vertical stirring shaft, and the other end of the stirring shaft is arranged at the top; the right end of the spiral propelling rod is provided with a driven gear, the driven gear is meshed with a driving gear, and the driving gear is connected with a driving motor. The utility model discloses a driving gear drives and moves the project organization of gear, reduces the impact load to driving motor.
Description
Technical Field
The utility model relates to a plastics production facility, concretely relates to mechanism of moulding plastics belongs to plastics preparation technical field.
Background
An injection molding machine, also known as an injection molding machine or an injection molding machine, is a main molding device for molding thermoplastic plastics or thermosetting plastics into plastic products of various shapes by using a plastic molding mold. An injection molding machine generally comprises an injection mechanism, a mold clamping mechanism, a hydraulic transmission mechanism, an electrical control mechanism, a lubricating mechanism, a heating and cooling mechanism, a safety monitoring mechanism and the like. The injection mechanism mainly comprises a feeding barrel, a charging barrel, a screw, a glue passing assembly and a nozzle part.
Heat loss is big when current injection molding machine output material, reduces the mobility of material easily, and pivot one end is generally directly connected with driving motor simultaneously, requires the power of motor big like this, and is big to motor impact load when starting simultaneously, influences the life-span. Meanwhile, the screw and the material cylinder used in the prior art are uniform in thickness, namely, the rod diameters of all the positions of the screw are completely the same, the inner diameters of all the positions of the material cylinder are also completely the same, and the problem of insufficient injection pressure during processing can be solved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing an injection molding mechanism.
In order to achieve the above object, the utility model provides a following technical scheme:
an injection molding mechanism comprises a feeding bin body, a charging barrel and a spiral pushing rod, wherein the feeding bin body is communicated with the upper part of the right end of the charging barrel, a gear box is arranged in the charging barrel and is positioned right below the feeding bin body, and a gap is formed between the gear box and the inner wall of the upper end of the charging barrel to form a feeding hole; the spiral pushing rod is arranged in the inner cavity of the charging barrel, the right end of the spiral pushing rod penetrates through the side wall of the gear box and the side wall of the charging barrel and is arranged on the side wall of the charging barrel, a driving bevel gear is arranged on a rod body of the right end of the spiral pushing rod, the upper part of the driving bevel gear is meshed with a driven bevel gear, the driven bevel gear is fixedly connected with a vertical stirring shaft, and the other end of the stirring shaft is arranged at the top; the right end of the spiral propelling rod is provided with a driven gear, the driven gear is meshed with a driving gear, and the driving gear is connected with a driving motor.
As the utility model discloses an optimal setting, driven bevel gear diameter is less than drive bevel gear diameter.
As an optimal arrangement of the present invention, the diameter of the driving gear is smaller than the diameter of the driven gear.
As the utility model discloses a preferred setting, spiral diameter right-hand member reduces along its axis to the other end gradually on the screw propulsion pole, just screw propulsion pole pitch reduces along its axis to the other end gradually from the right-hand member equally.
As the utility model discloses a preferred setting, feed cylinder inner chamber diameter reduces along with the spiral diameter is synchronous from the right-hand member to its other end.
As the utility model discloses an it sets up to prefer, the feed cylinder left side is provided with the mouth of moulding plastics and is used for connecting injection mold, the mouth diameter of moulding plastics does 1/3 ~ 1/2 of the minimum spiral diameter of screw propulsion pole.
As the utility model discloses an it sets up to prefer, the feed cylinder outside covers there is the heat conduction oil reservoir, be provided with electric heater unit in the heat conduction oil reservoir.
As the utility model discloses an optimal setting, heat conduction oil reservoir outside still covers in proper order and is provided with insulating layer and stainless steel shell.
The utility model discloses possess following beneficial effect:
1. the utility model has the advantages of simple structure, and reasonable design, add the back when the material, driving motor drives the driving gear rotatory, the driving gear drives driven gear rotatory this moment, driven gear drives the rotatory realization of screw propulsion pole and discharges the material, screw propulsion pole drives the rotation of drive bevel gear simultaneously, it is rotatory that drive bevel gear drives driven bevel gear and further drives the (mixing) shaft, carry out intensive mixing to the material that adds the feed bin internal and mix, only need a motor can realize stirring and mix and extrude exhaust function, the motor use amount has been reduced, energy saving, the driving gear drives the project organization with moving the gear simultaneously, reduce the impact load to driving motor, can increase of service life like this.
2. The inner cavity of the charging barrel and the spiral diameter of the spiral propelling rod are synchronously reduced, the raw materials can be fully plasticized and uniformly mixed by depending on the pressure and the shearing force generated by the rotation of the spiral propelling rod when the raw materials are extruded, simultaneously, the screw pitch of the spiral propelling rod is gradually reduced from the right end to the other end, the materials can be extruded from loose to tight when the materials are conveyed, the pressure is increased when the materials are extruded, and the materials can be conveniently extruded from an injection molding port;
3. the utility model discloses set up the heat conduction oil layer in the feed cylinder outside, heat the conduction oil through electric heater unit, can realize can be to plastic material's softening in material transportation process, the insulating layer can carry out good thermal-insulated and heat preservation simultaneously, avoids leading to the temperature not enough when terminal moulding plastics, and the plastics raw materials after the softening cools off the sclerosis.
Drawings
FIG. 1 is a schematic structural view of an injection molding mechanism;
1-a feeding bin body;
2-a barrel;
3-a screw propulsion rod;
4-a gearbox;
5-a feed inlet;
6-drive bevel gear;
7-driven bevel gear;
8-stirring shaft;
9-a driven gear;
10-a drive gear;
11-a drive motor;
12-injection molding mouth;
13-a heat conducting oil layer;
14-an electric heating device;
15-a thermal insulation layer;
16-stainless steel housing.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1, an embodiment of the present invention provides an injection molding mechanism, including a feeding bin body 1, a charging barrel 2 and a spiral pushing rod 3, wherein the feeding bin body 1 is communicated with an upper portion of a right end of the charging barrel 2, a gear box 4 is disposed in the charging barrel 2 and right below the feeding bin body 1, and a gap is formed between the gear box 4 and an inner wall of an upper end of the charging barrel 2 to form a feeding port 5; the spiral pushing rod 3 is arranged in the inner cavity of the charging barrel 2, the right end of the spiral pushing rod penetrates through the side wall of the gear box 4 and the side wall of the charging barrel 2 and is arranged on the side wall of the charging barrel 2, a driving bevel gear 6 is arranged on a rod body, the right end of the spiral pushing rod is positioned in the gear box 4, a driven bevel gear 7 is meshed with the upper part of the driving bevel gear 6, the driven bevel gear 7 is fixedly connected with a vertical stirring shaft 8, and the other end of the stirring shaft 8 is arranged; the right end of the spiral propelling rod 4 is provided with a driven gear 9, the driven gear 9 is meshed with a driving gear 10, and the driving gear 10 is connected with a driving motor 11.
Through adopting above-mentioned technical scheme, after the material is added, driving motor 11 drives driving gear 10 rotatory, driving gear 10 drives driven gear 9 this moment rotatory, driven gear 9 drives the rotatory realization of screw propulsion pole 3 and discharges the material, screw propulsion pole 3 drives the rotation of drive bevel gear 6 simultaneously, drive bevel gear 6 drives driven bevel gear 7 and rotates further drive (mixing) shaft 8 rotatory, carry out intensive mixing to the material that adds the feed bin internal, only need a motor can realize stirring mix and extrusion exhaust function, the motor use amount has been reduced, energy saving, driving gear 10 drives the project organization with moving gear 9 simultaneously, reduce the impact load to driving motor 11, thus can prolong service life.
As the preferred arrangement of the embodiment of the present invention, further, the diameter of the driven bevel gear 7 is smaller than the diameter of the drive bevel gear 6.
As a preferable configuration of the embodiment of the present invention, further, the diameter of the driving gear 10 is smaller than the diameter of the driven gear 9.
By adopting the technical scheme, the diameter of the driving gear 10 is smaller than that of the driven gear 9, so that the rotating speed of the spiral driving rod 3 is smaller than that of the output shaft of the driving motor 11, the diameter ratio of the driving gear 10 to the driven gear 9 is selected according to actual working conditions, and the spiral driving rod 3 is driven to rotate stably as much as possible; meanwhile, the diameter of the driven bevel gear 7 is smaller than that of the driving bevel gear 6, the rotating speed of the stirring shaft 8 is increased, and the stirring and mixing efficiency is improved.
As the utility model discloses preferred setting, step by step, spiral diameter right-hand member reduces along its axis to the other end gradually on the screw propulsion pole 3, just 3 pitch of screw propulsion pole reduce gradually along its axis to the other end from the right-hand member equally.
As the utility model discloses preferred setting, near one step, 2 inner chamber diameters of feed cylinder reduce along with spiral diameter is synchronous from the right-hand member to its other end.
As the utility model discloses preferred setting, furtherly, feed cylinder 2 left side is provided with injection molding mouth 12 and is used for connecting injection mold, injection molding mouth 12 diameter does 1/3 ~ 1/2 of the minimum spiral diameter of screw propulsion pole 3.
Through adopting above-mentioned technical scheme, 2 inner chambers of feed cylinder reduce with 3 screw diameters of screw propulsion pole in step, rely on 3 rotatory produced pressure and shearing force of screw propulsion pole when the extrusion raw materials, can make the raw materials fully carry out plastify and homogeneous mixing, 3 screw pitches of screw propulsion pole simultaneously reduce gradually equally, just can carry out the material by the extrusion of pine to tightness when defeated the material, pressure increase when extruding, the convenience is extruded from the mouth 12 of moulding plastics, the 12 diameters of the mouth of moulding plastics do 1/3 ~ 1/2 of the minimum screw diameter of screw propulsion pole 3 make the mouth 12 of moulding plastics department pressure further increase, the raw materials of being convenient for more extrude from the mouth 12 of moulding plastics.
As the utility model discloses preferred setting, near one-step, 2 outside covers of feed cylinder have heat conduction oil layer 13, be provided with electric heater unit 14 in the heat conduction oil layer 13.
As the preferred setting of the embodiment of the present invention, further, the heat conducting oil layer 13 is covered with the heat insulating layer 15 and the stainless steel casing 16 in sequence.
Through adopting above-mentioned technical scheme, set up heat conduction oil layer 13 in feed cylinder 2 outside, heat the conduction oil through electric heater unit 14, can realize can carrying the in-process at the material softening to plastic material, the insulating layer can carry out good thermal-insulated and heat preservation simultaneously, avoids leading to the temperature not enough when terminal moulding plastics, and the cooling of the plastics raw materials after softening becomes hard.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims above, any of the claimed embodiments may be used in any combination. The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.
Claims (8)
1. An injection molding mechanism comprises a feeding bin body, a charging barrel and a spiral pushing rod, and is characterized in that the feeding bin body is communicated with the upper part of the right end of the charging barrel, a gear box is arranged in the charging barrel and is positioned right below the feeding bin body, and a gap is formed between the gear box and the inner wall of the upper end of the charging barrel to form a feeding hole; the spiral pushing rod is arranged in the inner cavity of the charging barrel, the right end of the spiral pushing rod penetrates through the side wall of the gear box and the side wall of the charging barrel and is arranged on the side wall of the charging barrel, a driving bevel gear is arranged on a rod body of the right end of the spiral pushing rod, the upper part of the driving bevel gear is meshed with a driven bevel gear, the driven bevel gear is fixedly connected with a vertical stirring shaft, and the other end of the stirring shaft is arranged at the top; the right end of the spiral propelling rod is provided with a driven gear, the driven gear is meshed with a driving gear, and the driving gear is connected with a driving motor.
2. The injection molding mechanism of claim 1, wherein the driven bevel gear diameter is smaller than the drive bevel gear diameter.
3. The injection molding mechanism of claim 1, wherein the drive gear has a diameter smaller than a diameter of the driven gear.
4. The injection molding apparatus of claim 1, wherein said screw flight has a screw diameter that decreases from the right end of the screw flight along its axis to the other end, and wherein said screw flight also decreases from the right end along its axis to the other end.
5. An injection molding mechanism as claimed in claim 4, wherein said barrel cavity diameter decreases synchronously with the spiral diameter from the right end to the other end thereof.
6. The injection mechanism as claimed in claim 5, wherein the left side of the barrel is provided with an injection port for connecting an injection mold, and the diameter of the injection port is 1/3-1/2 of the minimum screw diameter of the screw pushing rod.
7. An injection molding apparatus as claimed in claim 1, wherein said cartridge is externally covered with a layer of heat conducting oil, and an electric heating device is disposed within said layer of heat conducting oil.
8. The injection molding mechanism of claim 7, wherein the heat conducting oil layer is covered with a heat insulating layer and a stainless steel shell in sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022376555.XU CN213564174U (en) | 2020-10-23 | 2020-10-23 | Injection molding mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022376555.XU CN213564174U (en) | 2020-10-23 | 2020-10-23 | Injection molding mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213564174U true CN213564174U (en) | 2021-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022376555.XU Active CN213564174U (en) | 2020-10-23 | 2020-10-23 | Injection molding mechanism |
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|---|---|
| CN (1) | CN213564174U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113894908A (en) * | 2021-09-30 | 2022-01-07 | 湖南华联瓷业股份有限公司 | Injection molding machine for producing special ceramics |
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2020
- 2020-10-23 CN CN202022376555.XU patent/CN213564174U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113894908A (en) * | 2021-09-30 | 2022-01-07 | 湖南华联瓷业股份有限公司 | Injection molding machine for producing special ceramics |
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