CN203409983U - Fully-automatic injection molding machine with screw injection mechanism - Google Patents
Fully-automatic injection molding machine with screw injection mechanism Download PDFInfo
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- CN203409983U CN203409983U CN201320510419.2U CN201320510419U CN203409983U CN 203409983 U CN203409983 U CN 203409983U CN 201320510419 U CN201320510419 U CN 201320510419U CN 203409983 U CN203409983 U CN 203409983U
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- screw
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- injection
- spiral grooves
- machine barrel
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Abstract
The utility model relates to a fully-automatic injection molding machine with a screw injection mechanism. The fully-automatic injection molding machine comprises a machine body, a mold closing mechanism, a hydraulic system, a cooling device, the injection mechanism and an electrical control system, wherein the mold closing mechanism is mounted on the machine body, and the hydraulic system is used for controlling the mold closing mechanism; the mold closing mechanism, the hydraulic system, the cooling device and the injection mechanism are controlled by the electrical control system; the injection mechanism comprises a machine barrel, a feeding hopper, a screw, a heating device and a hydraulic motor mechanism, wherein the feeding hopper is mounted on the machine barrel, the screw is arranged in the machine barrel, the heating device is arranged on the machine barrel, and the hydraulic motor mechanism is used for driving the screw to rotate; the screw comprises a feeding section, a compressing section, a homogenizing section and an extruding section, wherein the depths of spiral grooves of the feeding section are greater than those of spiral grooves of the compressing section, the depths of the spiral grooves of the compressing section are greater than those of spiral grooves of the homogenizing section, and the tilting angles of threads of the feeding, compressing and homogenizing sections on the screw are 17.72 degrees. The fully-automatic injection molding machine with the screw injection mechanism has the advantages of high plasticizing efficiency, large plasticizing capacity and strong speed skating capacity.
Description
Technical field
The utility model relates to the technical field of Machinery Design，Manufacturing and Automation, especially a kind of full-automatic injection mold with screw of injection mechanism.
Background technology
From technological innovation the 1950's, released the screw plastic-injection moulding machine history of existing more than 50 year so far.In engineering plastics industry, 80% plastic products have adopted injection moulding at present.Automobile in recent years, the industry needs growing to injection-molded item such as building, household electrical appliance, food, medicine, have promoted development and the raising of injection molding technology level.China Plastics Machinery Industry 2000 annual sales amounts, 7,000,000,000 yuans of left and right, are approximately 8.5 ten thousand, and wherein 40% left and right is injection (mo(u)lding) machine, and the output of injection machine all increasing year by year, and the proportion accounting in plastics machinery is maximum.
From injection machine comes out, the clamp force of injection machine is at 1000～5000KN, and injection volume accounts for the overwhelming majority at the middle-size and small-size injection machine of 50～2000g.To 20 century 70 later stages, due to the extensive use of the development of engineering plastics, particularly automobile, boats and ships, aerospace, machinery and large household appliance aspect, make large size plastic jetting-moulding device obtain developing rapidly.
According to data, from current world level, oneself brings up to 40～50m/min from the 20～30m/min in past the speed of moving mold of injection machine, the high 70m/min that even reaches; Injection speed is brought up to present 250mm/s from the 100mm/s in past, and what have reaches 450mm/s.Injection pressure is brought up to 180 current～250mpa from the 120～150mpa in past, its shrink of product rate is almost nil, goods tolerance can guarantee at 0.02～0.03mm, wall thickness can reach 0.1～0.2mm, energy-conservation aspect, from flow proportional and the pressure control ratio in past, develop into Variable Control and quantitatively control, its energy consumption is only 30% of conventional machines.
The injection machine using is at present mainly by injection device, mold closing mechanism, hydraulic drive, electric control system, it exists injection device complexity loaded down with trivial details, the structure of general screw rod directly has influence on the quality of product, compression ratio designs unreasonable meeting and cause occurring cutout in injection moulding process, sometimes the thickness low LCL of flight is large, when pan feeding, at pan feeding section screw rod, receive larger active force, be easy to twist off, in addition, feeding section, the degree of depth of the spiral grooves of compression section and metering section also has a significant impact, in addition, its loading hopper exists charging rate too fast, and cause after solid accumulation, causing screw rod is to damage.
Utility model content
The technical problems to be solved in the utility model is: in order to overcome the problem of above-mentioned middle existence, provide a kind of full-automatic injection mold with screw of injection mechanism, its project organization rationally, can make that material surface is smooth and discharging is smooth and easy.
The utility model solves the technical scheme that its technical problem adopts: a kind of full-automatic injection mold with screw of injection mechanism, comprise fuselage, be arranged on the mold closing mechanism on fuselage, for controlling the hydraulic system of mold closing mechanism, cooling device and injection mechanism and electric control system, mold closing mechanism, hydraulic system, cooling device and injection mechanism are controlled by electric control system, described injection mechanism comprises machine barrel, be arranged on the loading hopper on machine barrel, be located at screw rod in machine barrel and be located at heater on machine barrel and for the hydraulic motor mechanism of drive screw turns, described screw rod comprises feeding section, compression section and homogenizing zone and extruding zone, the spiral grooves degree of depth of the spiral grooves depth ratio compression section of feeding section is large, the spiral grooves degree of depth of the spiral grooves depth ratio homogenizing zone of compression section is large, feeding section, the angle of inclination of screw thread on compression section and homogenizing zone on screw rod is 17.72 °.
Described extruding zone is comprised of smooth section, check ring section and conical head section, and the tapering of described conical head section conehead is 36 °.
For can realize material within adding material bin after, can possess a buffering, avoid material in machine barrel, to occur phenomenon in heaps, the inwall of described loading hopper is provided with at least one block buffering plate, between buffer board and the inwall of loading hopper, have angle, the angle of its angle is 30 °.
The beneficial effects of the utility model are: described a kind of full-automatic injection mold with screw of injection mechanism, adopt the screw rod of this kind of design to be combined in injector, plasticizing efficiency is high, plasticizing capacity is large, in extrusion screw, various raw materials mix, ski-running ability is strong, and the injection-molded item of multiple plastic raw materials is stablized and can be adapted to plasticizing quality, can guarantee the injection mo(u)lding quality of thermal sensitivity plastics.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of screw rod in Fig. 1;
Fig. 3 is the structural representation of extruding zone in Fig. 2
Fig. 4 is the structural representation of loading hopper in Fig. 1.
1. fuselages in figure, 2. mold closing mechanism, 3. hydraulic system, 4. cooling device, 5. injection mechanism, 51. machine barrels, 52. loading hoppers, 53. screw rods, 53-1. feeding section, 53-2. compression section, 53-3. homogenizing zone, 53-4. extruding zone, 53-41. smooth section, 53-42. check ring section, 53-43. conical head section, 54. heaters, 6. electric control system.
The specific embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, basic structure of the present utility model is only described in a schematic way, so it only show the formation relevant with the utility model.
A kind of full-automatic injection mold with screw of injection mechanism as shown in Figure 1, comprise fuselage 1, mold closing mechanism 2 is installed on fuselage 1, for controlling the hydraulic system 3 of mold closing mechanism 2, cooling device 4 and injection mechanism 5 and electric control system 6, mold closing mechanism 2, hydraulic system 3, cooling device 4 and injection mechanism 5 are controlled by electric control system 6, injection mechanism 5 comprises machine barrel 51, be arranged on the loading hopper 52 on machine barrel 51, the hydraulic motor mechanism 55 that is located at the screw rod 53 in machine barrel 51 and is located at the heater 54 on machine barrel 51 and rotates for drive screw 53.
A kind of full-automatic injection mold with screw of injection mechanism as shown in Figures 2 and 3, screw rod 53 comprises feeding section 53-1, compression section 53-2 and homogenizing zone 53-3 and extruding zone 53-4, extruding zone 53-4 is by smooth section 53-41, check ring section 53-42 and conical head section 53-43 form, the tapering of conical head section 53-43 conehead is 36 °, the spiral grooves degree of depth of the spiral grooves depth ratio compression section 53-2 of feeding section 53-1 is large, the spiral grooves degree of depth of the spiral grooves depth ratio homogenizing zone 53-3 of compression section 53-2 is large, feeding section 53-1, the angle of inclination of screw thread on compression section 53-2 and homogenizing zone 53-3 on screw rod 53 is 17.72 °.
A kind of full-automatic injection mold with screw of injection mechanism as shown in Figure 4, the inwall of loading hopper 52 is provided with at least one block buffering plate 52-1, between buffer board 52-1 and the inwall of loading hopper 52, has angle, and the angle of its angle is 30 °.
A kind of full-automatic injection mold with screw of injection mechanism of the present utility model, actuator drives screw rod 53 rotates, the solid plastics falling in machine barrel 51 from loading hopper is fed forward, solid material melting gradually under the shear heat of screw rod 53 and the effect of machine barrel 51 external heaters, while reaching machine barrel 51 leading portion, oneself plasticizing is viscous state fused materials, when the melting material pressure of machine barrel 51 front ends, bring up to and overcome screw rod 53 backward during mobile resistance, when can being rotated further plastifying material, moves backward gradually screw rod 53, now preformed metering starts, when screw rod retreats into certain distance, be that the melt amount of preformed is while reaching requiring of injection volume, the touching lever pressing travel switch of metering device makes transmission device stop drive screw 53, when preformed stops injecting, injection seat Shift cylinder moves forward injection seat, make the sprue of the nozzle compaction mold on machine barrel 51, injection cylinder moves forward screw rod 53 and the melt of machine barrel front end is applied to certain pressure, melt is noted the die cavity of progressive die tool with certain injection pressure and injection speed, the melt of 53 pairs of machine barrel front ends of screw rod keeps certain pressure to arrive predetermined a period of time subsequently, injection device has completed a molding cycle like this.
The above-mentioned foundation desirable embodiment of the present utility model of take is enlightenment, and by above-mentioned description, relevant staff can, within not departing from the scope of this utility model technological thought, carry out various change and modification completely.The technical scope of this utility model is not limited to the content on description, must determine its technical scope according to claim scope.
Claims (3)
1. a full-automatic injection mold with screw of injection mechanism, it is characterized in that: comprise fuselage (1), be arranged on the mold closing mechanism (2) on fuselage (1), be used for controlling the hydraulic system (3) of mold closing mechanism (2), cooling device (4) and injection mechanism (5) and electric control system (6), mold closing mechanism (2), hydraulic system (3), cooling device (4) and injection mechanism (5) are controlled by electric control system (6), described injection mechanism (5) comprises machine barrel (51), be arranged on the loading hopper (52) on machine barrel (51), the hydraulic motor mechanism (55) that is located at the screw rod (53) in machine barrel (51) and is located at the heater (54) on machine barrel (51) and rotates for drive screw (53), described screw rod (53) comprises feeding section (53-1), compression section (53-2) and homogenizing zone (53-3) and extruding zone (53-4), the spiral grooves degree of depth of the spiral grooves depth ratio compression section (53-2) of feeding section (53-1) is large, the spiral grooves degree of depth of the spiral grooves depth ratio homogenizing zone (53-3) of compression section (53-2) is large, feeding section (53-1), the angle of inclination of screw thread on compression section (53-2) and homogenizing zone (53-3) on screw rod (53) is 17.72 °.
2. a kind of full-automatic injection mold with screw of injection mechanism according to claim 1, it is characterized in that: described extruding zone (53-4) is comprised of smooth section (53-41), check ring section (53-42) and conical head section (53-43), the tapering of described conical head section (53-43) conehead is 36 °.
3. a kind of full-automatic injection mold with screw of injection mechanism according to claim 1, it is characterized in that: the inwall of described loading hopper (52) is provided with at least one block buffering plate (52-1), between the inwall of buffer board (52-1) and loading hopper (52), have angle, the angle of its angle is 30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320510419.2U CN203409983U (en) | 2013-08-20 | 2013-08-20 | Fully-automatic injection molding machine with screw injection mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320510419.2U CN203409983U (en) | 2013-08-20 | 2013-08-20 | Fully-automatic injection molding machine with screw injection mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203409983U true CN203409983U (en) | 2014-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320510419.2U Expired - Fee Related CN203409983U (en) | 2013-08-20 | 2013-08-20 | Fully-automatic injection molding machine with screw injection mechanism |
Country Status (1)
| Country | Link |
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| CN (1) | CN203409983U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107351314A (en) * | 2016-05-09 | 2017-11-17 | 钜钢机械股份有限公司 | To supply method and its device of the rubber raw materials to ejaculator |
-
2013
- 2013-08-20 CN CN201320510419.2U patent/CN203409983U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107351314A (en) * | 2016-05-09 | 2017-11-17 | 钜钢机械股份有限公司 | To supply method and its device of the rubber raw materials to ejaculator |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140129 Termination date: 20140820 |
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| EXPY | Termination of patent right or utility model |