CN103068552B - The automatic operation method of injection machine - Google Patents
The automatic operation method of injection machine Download PDFInfo
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- CN103068552B CN103068552B CN201180038627.0A CN201180038627A CN103068552B CN 103068552 B CN103068552 B CN 103068552B CN 201180038627 A CN201180038627 A CN 201180038627A CN 103068552 B CN103068552 B CN 103068552B
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- 238000002347 injection Methods 0.000 title claims abstract description 208
- 239000007924 injection Substances 0.000 title claims abstract description 208
- 238000000034 method Methods 0.000 title claims description 39
- 239000011347 resin Substances 0.000 claims abstract description 202
- 229920005989 resin Polymers 0.000 claims abstract description 202
- 239000000463 material Substances 0.000 claims abstract description 50
- 238000013461 design Methods 0.000 claims abstract description 15
- 238000007493 shaping process Methods 0.000 claims abstract description 14
- 238000005259 measurement Methods 0.000 claims description 35
- 238000010438 heat treatment Methods 0.000 claims description 29
- 238000004458 analytical method Methods 0.000 abstract description 7
- 238000001746 injection moulding Methods 0.000 abstract description 6
- 238000012545 processing Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 238000000465 moulding Methods 0.000 description 6
- 238000009530 blood pressure measurement Methods 0.000 description 4
- 238000009529 body temperature measurement Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000006399 behavior Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000000205 computational method Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/7646—Measuring, controlling or regulating viscosity
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Automatically carry out viscosimetric analysis and the viscosity adjustment of the molten resin used in the injection moulding of injection machine.When the automatic operation forming product, material feeding counting number unit (17) counts for the material feeding number from injection nozzle (3) injecting molten resin, when the material feeding number count down to reaches the specified value preset, automatically calculate the viscosity of the molten resin penetrated from injection nozzle (3), time in the scope that the viscosity of the molten resin calculated is not accommodated in the resin viscosity of regulation, the change of the design temperature of heater (10) is carried out by thermostat unit (15), the viscosity of molten resin is adjusted to the resin viscosity being accommodated in regulation, then and then, again start the automatic operation of the shaping repeatedly forming product.Thus, in the automatic operation midway being manufactured formed products by injection machine continuously, viscosimetric analysis and the viscosity adjustment of molten resin automatically can be carried out.
Description
Technical field
The cavity injection that the present invention relates to the mould of mold closing is manufactured the automatic operation method of the injection machine of formed products by the resin after heating cylinder melting, especially relate to the viscosity of mensuration molten resin and the resin of suitable regulation viscosity is used in injection moulding, the automatic operation method of the injection machine that certified products are shaped can be realized thus.
Background technology
Utilize injection moulding to be shaped in the injection machine of formed products, require the resin viscosity of the molten resin of the cavity injection suitably guaranteed to mould.A kind of technology that can be measured the viscosity of the resin being used in injection moulding by injection machine self is Patent Document 1 discloses from what file an application with the same applicant of the application.
[at first technical literature]
[patent document]
[patent document 1] Japan Patent No. 3732821 publication
Summary of the invention
[inventing the problem that will solve]
But, in described patent document 1, although the viscosity of the molten resin of the cavity injection to mould can be measured, but such as use the resin material of the same kind of same manufacturer, when carrying out meter action by same equipment (same injection machine) under same molding condition, if such as use the resin material that the batch of resin material is different, then because of the difference of batch, resin viscosity can produce variation, therefore in order to use the resin of the viscosity of regulation to carry out injection moulding accurately, when resin batch changes, carry out resin viscosity and whether be accommodated in mensuration in prescribed limit, afterwards, based on the information obtained from this measurement result, the adjustment of resin viscosity is carried out as artificial operation, therefore actual conditions need miscellaneous operation.
The present invention makes in view of above-mentioned problem, its object is to the automatic operation method that a kind of injection machine is provided, it is before the automatic operation midway or be shaped utilizing injection machine to manufacture formed products continuously starts, realize the automation that the viscosimetric analysis of molten resin, the viscosimetric analysis of molten resin and viscosity adjust, improve convenience.
[for solving the means of problem]
The feature of the invention of the automatic operation method of injection machine is,
In described injection machine, rotate by making the screw rod in heating cylinder and retreat the measurement process carrying out molten resin, afterwards, as injection process, by before making described screw rod and then from the cavity injection molten resin of injection nozzle to mould being arranged on described heating cylinder front end
Described injection machine possesses: the material feeding number from described injection nozzle injecting molten resin is carried out to the material feeding counting number unit counted; The rotary drive unit that described screw rod rotates is made when carrying out described measurement process; And the advance and retreat driver element that described injection nozzle is retreated,
To advance being made described injection nozzle by this advance and retreat driver element and with the automatic operation of described contacting dies and Iteratively forming formed products, by described material feeding counting number unit, the material feeding number from described injection nozzle injecting molten resin is counted, when the material feeding number that this count down to reaches specified value, described advance and retreat driver element makes described injection nozzle retreat, thus under the state making described injection nozzle and described mould retreat non-contiguously, calculate the viscosity of the molten resin penetrated from described injection nozzle
After the viscosity calculating this molten resin, described advance and retreat driver element makes described injection nozzle and described contacting dies, again starts the automatic operation of the shaping repeatedly forming product.
The feature of the invention of the automatic operation method of injection machine is,
In described injection machine, rotate by making the screw rod in heating cylinder and retreat the measurement process carrying out molten resin, afterwards, as injection process, by before making described screw rod and then from the cavity injection molten resin of injection nozzle to mould being arranged on described heating cylinder front end
Described injection machine possesses: the working time for this injection machine carries out the timing unit counted; The rotary drive unit that described screw rod rotates is made when carrying out described measurement process; And the advance and retreat driver element that described injection nozzle is retreated,
To advance being made described injection nozzle by this advance and retreat driver element and with the automatic operation of described contacting dies and Iteratively forming formed products, the working time of described timing unit to described injection machine is utilized to count, when the working time that this count down to reaches the stipulated time, described advance and retreat driver element makes described injection nozzle retreat, thus under the state making described injection nozzle and described mould retreat non-contiguously, calculate the viscosity of the molten resin penetrated from described injection nozzle
After the viscosity calculating this molten resin, described advance and retreat driver element makes described injection nozzle and described contacting dies, again starts the automatic operation of the shaping repeatedly forming product.
The feature of the invention of the automatic operation method of injection machine is,
The judgement of the viscosity of the molten resin calculated described in carrying out, time in the scope that the viscosity of this molten resin is not accommodated in the resin viscosity of regulation, thermostat unit carries out the change of the design temperature of the heater be arranged on described heating cylinder, the viscosity of the molten resin penetrated from described injection nozzle is adjusted to thus in the scope of the resin viscosity being accommodated in regulation.
[invention effect]
According to the present invention, when carrying out the automatic operation of Iteratively forming formed products, material feeding counting number unit is utilized to count for the material feeding number from injection nozzle injecting molten resin, when the material feeding number count down to reaches the specified value preset, as resin viscosity measurement pattern, automatically calculate the viscosity of the molten resin from injection nozzle injection, time in the scope that the viscosity of calculated molten resin is not accommodated in the resin viscosity of regulation, thermostat unit is utilized to carry out the change of the design temperature of heater, the viscosity of molten resin is adjusted to the resin viscosity being accommodated in regulation, then and then, again start the automatic operation of the shaping repeatedly forming product.Thus, automatically carry out resin viscosity measurement pattern in the automatic operation midway utilizing injection machine to manufacture formed products continuously, automatically can carry out the viscosimetric analysis of molten resin, viscosity adjustment on this basis thus, the raising of convenience can be realized.
In addition, according to the present invention, when carrying out the automatic operation of Iteratively forming formed products, the working time of timing unit to injection machine is utilized to count, when the working time count down to reaches the stipulated time, as resin viscosity measurement pattern, automatically calculate the viscosity of the molten resin from injection nozzle injection, time in the scope that the viscosity of the molten resin calculated is not accommodated in the resin viscosity of regulation, thermostat unit is utilized to carry out the change of the design temperature of heater, the viscosity of molten resin is adjusted to the resin viscosity being accommodated in regulation, then and then, again start the automatic operation of the shaping repeatedly forming product.Thus, automatically carry out resin viscosity measurement pattern in the automatic operation midway utilizing injection machine to manufacture formed products continuously, automatically can carry out the viscosimetric analysis of molten resin, viscosity adjustment on this basis thus, the raising of convenience can be realized.
Accompanying drawing explanation
Fig. 1 is the block diagram of the structure of the control system representing injection machine of the present invention.
Fig. 2 is the brief configuration figure representing the heating cylinder being formed in injection machine.
Fig. 3 is the key diagram of an example of the display of the display unit representing injection machine.
Fig. 4 is the key diagram of the relation represented between resin viscosity and shear rate.
The flow chart of action case when Fig. 5 is the viscosity representing adjustment molten resin.
Detailed description of the invention
Below, by Fig. 1 ~ Fig. 5, embodiments of the present invention are described.Certainly, without the need to illustrating, the present invention, in the scope not violating aim of the present invention, also can easily be suitable for for the structure beyond illustrating in present embodiment.
In the injection machine of present embodiment, rotate by making the screw rod 2 be rotatably arranged in heating cylinder 1 and retreat and carry out the measurement process of molten resin, afterwards, make screw rod 2 advance as injection process, thus from being arranged on the injection nozzle 3 of front end of heating cylinder 1 to the cavity injection molten resin of mould, as shown in Figure 1, this injection machine formation comprises: the control unit 4 of the control of management injection machine entirety; The input units 5 such as the key board unit be connected with control unit 4; The display unit 6 such as the liquid crystal indicator be connected with control unit 4; The sensor group 7 that the multiple sensors possessed by each portion of injection machine are formed; And the driver bank 8 to be made up of multiple drive circuits of the drived control for carrying out the multiple drive sources be arranged in each portion of injection machine.
In addition, as shown in Figure 2, heater (band heater) 10 being installed in the periphery of heating cylinder 1, carrying out supply in heating cylinder and the adjustment of the temperature of the resin penetrated from the front end of injection nozzle 3 by regulating the temperature of heater.
Control unit 4 performs meter action, back suction action after meter action, to the action of injection of the cavity injection molten resin of mould, the die opening and closing action of mould, the control of a series of automatic operation of the shaping formed products such as injection action, computing/the storage of automatic operating measured data, the determination processing of the certified products/defective work of formed body formed thereby, the determination processing of misoperation, determine whether the determination processing of the resin viscosity (being used in the viscosity of the molten resin of injection moulding) of regulation, the molding conditions such as resin viscosity are presented at the first-class various process of display unit 6.It should be noted that, although not shown in FIG, but control unit 4 comprises CPU, ROM, RAM, various I/O interface, various process is performed by ready-made various program, in the present embodiment, as shown in Figure 1, control unit 4 comprises molding condition setting memory cell 11, forming technology control unit 12, measured value memory cell 13, resin viscosity computing unit 14, thermostat unit 15, display processing unit 16 etc., and, material feeding counting number unit 17 is comprised as sensor group 7, to the timing unit 18 that the working time of injection machine counts, measure the temperature measurement unit 19 of the temperature of the molten resin penetrated from injection nozzle 3, injection pressure measurement sensor 20 etc., the motor driver 21 carrying out FEEDBACK CONTROL is comprised as driver bank 8, heater driver 22, fluidic actuator driver 23 etc.
In addition, the various operational condition value inputted from input unit 5 are stored in molding condition setting memory cell 11 in rewritable mode.As the project of the service condition corresponding with operational condition value, such as, except measure control condition, back suction controlled condition, injection controlled condition, mold closing controlled condition, die sinking controlled condition, spraying fire condition, on the basis showing the image shown in Fig. 3, also there are the working time etc. of the material feeding number " N " in step 2 described later, injection machine.
Forming technology control unit 12 is based on ready-made forming technology control program and the value that imposes a condition be stored in molding condition setting memory cell 11, with reference to from sensor group (the material feeding counting number unit 17 in each portion being arranged at injection machine, timing unit 18, temperature measurement unit 19, injection pressure measurement is with sensor 20 etc.) measurement information, and via the motor driver 21 carrying out FEEDBACK CONTROL as described driver bank 8, heater driver 22, fluidic actuator driver 23 grade and carry out the drived control of corresponding drive source, perform a series of automatic operation of shaping formed products, resin viscosity measurement pattern described later etc.
The working time etc. of injection machine storing the value of the resin viscosity calculated by resin viscosity computing unit 14, the material feeding number of the molten resin injected from injection nozzle 3 counted by material feeding counting number unit 17 and counted by timing unit 18 in measured value memory cell 13.
Resin viscosity computing unit 14 uses the actual measurement injection pressure force value (measured value of injection pressure measurement sensor 20) of injection speed one timing, utilizes calculating formula described later to calculate (mensuration) resin viscosity.Then, based on the viscosity of the molten resin calculated value and carry out the change of the design temperature of the heater 10 of the passage (ch) specified by thermostat unit 15.
In addition, display processing unit 16, according to the call signal of the display image desired by being produced by operator's input device, is made/control program based on ready-made display image, is made the display view data of the display mode of specifying.This view data made is passed on and is temporarily stored in not shown frame buffer, according to the instruction of display processing unit 16, the output of frame buffer is presented on the picture of display unit 6 as view data with the state shown in Fig. 3.
At this, the computational methods of the resin viscosity undertaken by resin viscosity computing unit 14 are described.Shear stress τ (Pa) setting viscosity as η (Pasec), if when shear rate is γ (sec-1), be expressed from the next,
τ=η × γ ... (1) formula
At this, in relation between the shear rate γ represented by (1) formula (being equivalent to the injection speed represented by the pace of screw rod 2 in the injection machine of coaxial screw) and viscosities il (viscosity of molten resin), namely, for the viscosity of resin, the situation of the behavior shown in Fig. 4 can be confirmed, if shear rate γ can be confirmed be in 10
1~ 10
5scope in, then along with the change of shear rate γ, viscosities il also changes.In contrast, be less than 10 at shear rate γ
1or more than 10
5time, regardless of the change of shear rate γ, viscosities il all represents roughly certain value.Therefore, 10 are kept in shear rate (injection speed)
1~ 10
5scope in certain regulation certain value time, the viscosity of molten resin can be calculated from (1) formula.Such as, the shear rate γ obtained by injection speed 10mm/sec and the size of equipment are had nothing to do, and roughly become γ=10
3~ 10
4the value of left and right, meets the design conditions of above-mentioned viscosity well.On the other hand, γ=10 are represented in the equipment of the shear rate γ obtained by injection speed 100mm/sec more than 100 tons
5neighbouring value is no longer the parameter of suitable Speed Setting.Thus, in the present invention, to keep the mode of certain certain value in the scope of 5 ~ 50mm/sec to control injection speed (pace of screw rod), calculate in the scope of condition what to meet above-mentioned viscosity well, carry out the measurement of resin viscosity.
In the injection machine of coaxial screw, according to JISK7199, described shear stress τ and shear rate γ is setting injection pressure as P(Pa), if the diameter in injection nozzle hole is r(mm), if the active length of nozzle (landlength) is L(mm), if flow is Q(mm3/sec) time, represented respectively by following formula
τ=(P × r)/(4 × L) ... (2) formula
γ=(32 × Q)/(π × r
3) ... (3) formula
At this, flow Q amasss as A(mm setting screw sections
2), if injection speed (pace of screw rod) is V(mm/sec) time, be expressed from the next,
Q=A × V ... (4) formula
, therefore when setting the diameter of screw rod as D, (4) formula is expressed from the next,
Q=(π × D
2× V)/4 ... (5) formula
, when (5) formula is updated to (3) formula, become
γ=(8 × D
2× V)/r
3(6) formula.
Therefore, as a result, the viscosities il of molten resin is obtained by following formula,
η=(r
4× P)/(32 × L × D
2× V) ... (7) formula
。That is, if injection speed is certain condition, then the value owing to controlling as the value of certain injection speed, mechanical dimension is known, as long as therefore survey injection pressure P just can calculate resin viscosity based on surveying injection pressure force value.
According to the measuring method of resin viscosity of injection machine of present embodiment using such calculating formula, confirm by test the situation that the resin viscosity measured can obtain the high-precision value roughly equal with the value of the prompting of resin material manufacturer.It should be noted that, in the injection machine of present embodiment, if meeting injection speed is certain condition, then by measuring the injection pressure force value during this, and can resin viscosity be calculated.But, to in mould during injection/filling molten resin, consider due to mould cavity shape as how and injection speed also carries out situation about changing, or when carrying out superfast injection, also consider the situation that injection speed departs from from the scope of the condition that calculates meeting described viscosity well.Therefore, when carrying out the mensuration of resin viscosity, the injection nozzle 3 of usual heating cylinder front end is under the state do not contacted with mould, and under the condition that the injection speed based on FEEDBACK CONTROL is certain, carry out (under the state of freely injecting that injection speed is certain) in the measurement pattern of the resin viscosity injected, carry out the mensuration/calculating of resin viscosity.
Next, based on Fig. 5, an example of the action when viscosity calculating molten resin also adjusts the viscosity of the molten resin calculated is described.Fig. 5 represents the situation starting automatically to run after making the resin be supplied in heating cylinder be warming up to the temperature of regulation, and step 2 ~ 10 represent the action of resin viscosity measurement pattern.Such as, after the change of resin batch etc., the (step 1) when the automatic operation being shaped as shape product starts, to be counted by material feeding counting number unit 17 from the material feeding number of injection nozzle 3 injecting molten resin and exports to control unit 4.
Next, in step 2, do not reach the material feeding number that presets that is N material feeding time, continue automatically to run, on the other hand, when reaching N material feeding, shifting to step 3, retreating by advance and retreat driver element with the injection nozzle 3 of contacting dies, being separated from mould.It should be noted that, as the described material feeding number preset, as represented in the lower right side of Fig. 3, such as, be " 1000 " material feeding, utilizes manually input and carry out setting change to the hurdle of " 1000 " of Fig. 3, can changing thus to suitable material feeding number.
Next, by resin viscosity computing unit 14, use described calculating formula, calculate the viscosity (step 4) of the molten resin injected from the injection nozzle retreated non-contiguously with mould due to retrogressing, carry out the judgement (step 5) of the viscosity of the molten resin calculated, at this, time in the scope that the viscosity of molten resin is accommodated in the resin viscosity of regulation, injection nozzle advance (step 6), return with the state of contacting dies and N reset to " 0 " (N=0), control unit 4 starts automatically to run (step 1) again.It should be noted that, can be judged by mean value several times in the mensuration of this resin viscosity.
On the other hand, in the judgement of the viscosity of the molten resin calculated in step 5, time in the scope that the viscosity of molten resin is not accommodated in the resin viscosity of regulation, temperature measurement unit 19 measures the temperature of the molten resin injected from injection nozzle 3, use this measurement result etc., thermostat unit 15 carries out the change (rise etc.) of the design temperature of heater 10, (step 7) in the scope thus viscosity of the molten resin injected from injection nozzle 3 being adjusted to the resin viscosity being accommodated in regulation.And, repeatedly carried out reach the temperature of regulation at the design temperature of heater 10 before step 7,8 action, as step 8, when the design temperature being confirmed heater 10 by control unit 4 reaches the situation of the temperature of regulation, resin viscosity computing unit 14 is utilized again to calculate the viscosity (step 4) of the molten resin penetrated from injection nozzle 3.It should be noted that, in step 7, be expressed as " making the design temperature of heater change Y DEG C ", but as shown in Figures 2 and 3, the heater 10 of present embodiment has heater 1 ~ 5(Xch along the length direction of heating cylinder 10), trickle temperature adjustment can be carried out by having multiple heater.
Next, after step 4, carry out the judgement (equal with step 5) of viscosity, time in the scope that the viscosity of molten resin is not accommodated in the resin viscosity of regulation, the temperature of repeatedly carrying out heater 10 changes (equal with step 7), whether the design temperature of heater 10 reaches the confirmation (equal with step 8) of the temperature of regulation, viscosity calculations (equal with step 4), the judgement (equal with step 5) of viscosity, this operation is carried out Z time (stated number), even if when reaching Z time, the viscosity of molten resin is not accommodated in the resin viscosity of regulation yet, injection machine stops automatically.On the other hand, when within Z time, the viscosity of molten resin is accommodated in the resin viscosity of regulation, injection nozzle advance, returns with the state of contacting dies and N resets to " 0 " (N=0), and control unit 4 starts automatic operation again.
As described above according to the present embodiment, in injection machine, rotate by making the screw rod 2 in heating cylinder 1 and retreat and carry out the measurement process of molten resin, afterwards, as injection process, by before making screw rod 2 and then from the cavity injection molten resin of injection nozzle 3 to mould being arranged on heating cylinder front end, described injection machine possesses: the material feeding number from injection nozzle 3 injecting molten resin is carried out to the material feeding counting number unit 17 counted, the rotary drive unit that screw rod 2 rotates is made when carrying out measurement process, and the advance and retreat driver element that injection nozzle 3 is retreated, wherein, by advance and retreat driver element, injection nozzle 3 is advanced and with contacting dies thus Iteratively forming goes out in the automatic operation of formed products, material feeding counting number unit 17 is utilized to count for the material feeding number from injection nozzle 3 injecting molten resin, when the material feeding number count down to reaches specified value, advance and retreat driver element makes injection nozzle 3 retreat together with heating cylinder 1, thus under the state making injection nozzle 3 and mould retreat non-contiguously, calculate the viscosity of the molten resin injected from injection nozzle 3, after the viscosity calculating this molten resin, described advance and retreat driver element makes injection nozzle 3 and contacting dies, again start the automatic operation of the shaping repeatedly forming product.And, the judgement of the viscosity of the molten resin calculated described in carrying out, time in the scope that the viscosity of molten resin is not accommodated in the resin viscosity of regulation, the viscosity with the molten resin of the characteristic that Yin Gaowenization and viscosity reduce penetrated from injection nozzle 3, by carrying out the change of the design temperature of the heater 10 be arranged on heating cylinder 1, is adjusted in the scope of the resin viscosity being accommodated in regulation by thermostat unit 15.Thus, when carrying out the automatic operation of Iteratively forming formed products, counted by the material feeding number of material feeding counting number unit 17 for the molten resin injected from injection nozzle 3, when the material feeding number count down to reaches the specified value preset, as resin viscosity measurement pattern, automatically calculate the viscosity of the molten resin penetrated from injection nozzle 3, time in the scope that the viscosity of the molten resin calculated is not accommodated in the resin viscosity of regulation, the change of the design temperature of heater 10 is carried out by thermostat unit 15, the viscosity of molten resin is adjusted to the resin viscosity being accommodated in regulation, and then and then, again start the automatic operation of the shaping repeatedly forming product, therefore resin viscosity measurement pattern is carried out in the automatic operation midway utilizing injection machine to manufacture formed products continuously, automatically can carry out the viscosimetric analysis of molten resin thus, viscosity adjustment on this basis, the person of simplifying the operation operation can be adjusted to the viscosity of resin and the raising of convenience can be realized.
Above, described an example of present embodiment in detail, but the present invention is not defined as described embodiment, various distortion can be carried out implement in the scope of main points of the present invention.In an above-mentioned example, material feeding counting number unit 17 is utilized to count for the material feeding number of the molten resin injected from injection nozzle 3, when the material feeding number count down to reaches specified value, calculate the viscosity of the molten resin penetrated from injection nozzle 3, but in this injection machine, as shown in Figure 1, owing to possessing the timing unit 18 counted the working time of injection machine, therefore timing unit 18 also can be utilized to count for the automatic operating working time of injection machine, time point when the running time count down to reaches the stipulated time, calculate the viscosity of the molten resin penetrated from injection nozzle 3.And, in the present embodiment, describe and make nozzle retreat the method for carrying out, but also can carry out the differentiation of viscosity according to the stowing pressure in shaping.
[label declaration]
1 heating cylinder
2 screw rods
3 injection nozzles
4 control units
5 input units
6 display unit
7 sensor groups
8 driver bank
10 heaters
11 molding condition setting memory cell
12 forming technology control units
13 measured value memory cell
14 resin viscosity computing units
15 thermostat units
16 display processing units
17 material feeding counting number unit
18 timing units
19 temperature measurement units
20 injection pressure measurement sensors
21 motor drivers
22 heater drivers
23 fluidic actuator drivers
Claims (4)
1. the automatic operation method of an injection machine, it is characterized in that, in described injection machine, rotate by making the screw rod in heating cylinder and retreat the measurement process carrying out molten resin, afterwards, as injection process, by before making described screw rod and then from the cavity injection molten resin of injection nozzle to mould being arranged on described heating cylinder front end
Described injection machine possesses: the material feeding number from described injection nozzle injecting molten resin is carried out to the material feeding counting number unit counted; The rotary drive unit that described screw rod rotates is made when carrying out described measurement process; And the advance and retreat driver element that described injection nozzle is retreated,
To advance being made described injection nozzle by this advance and retreat driver element and with the automatic operation of described contacting dies and Iteratively forming formed products, by described material feeding counting number unit, the material feeding number from described injection nozzle injecting molten resin is counted, when the material feeding number that this count down to reaches specified value, described advance and retreat driver element makes described injection nozzle retreat, described injection nozzle and described mould is made to retreat non-contiguously thus
Under the state making described injection nozzle and described mould retreat non-contiguously,
Resin viscosity computing unit calculates the resin viscosity of the molten resin penetrated from described injection nozzle based on actual measurement injection pressure force value,
When the resin viscosity of the described molten resin calculated is judged to be in the scope of the resin viscosity not being accommodated in regulation by control unit, thermostat unit carries out the change of the design temperature of the heater be arranged on described heating cylinder, thus the resin viscosity of the molten resin penetrated from described injection nozzle is adjusted
Described resin viscosity computing unit calculates the resin viscosity of the molten resin that have adjusted described resin viscosity based on actual measurement injection pressure force value,
When the resin viscosity of described control unit to the molten resin calculating described resin viscosity judges and is judged to be that the resin viscosity of the molten resin of this judgement is accommodated in the scope of the resin viscosity of regulation,
Described advance and retreat driver element makes described injection nozzle and described contacting dies, again starts the automatic operation of the shaping repeatedly carrying out described formed products.
2. the automatic operation method of an injection machine, it is characterized in that, in described injection machine, rotate by making the screw rod in heating cylinder and retreat the measurement process carrying out molten resin, afterwards, as injection process, by before making described screw rod and then from the cavity injection molten resin of injection nozzle to mould being arranged on described heating cylinder front end
Described injection machine possesses: the working time for this injection machine carries out the timing unit counted; The rotary drive unit that described screw rod rotates is made when carrying out described measurement process; And the advance and retreat driver element that described injection nozzle is retreated,
To advance being made described injection nozzle by this advance and retreat driver element and with the automatic operation of described contacting dies and Iteratively forming formed products, the working time of described timing unit to described injection machine is utilized to count, when the working time that this count down to reaches the stipulated time, described advance and retreat driver element makes described injection nozzle retreat, described injection nozzle and described mould is made to retreat non-contiguously thus
Under the state making described injection nozzle and described mould retreat non-contiguously,
Resin viscosity computing unit calculates the resin viscosity of the molten resin penetrated from described injection nozzle based on actual measurement injection pressure force value,
When the resin viscosity of the described molten resin calculated is judged to be in the scope of the resin viscosity not being accommodated in regulation by control unit, thermostat unit carries out the change of the design temperature of the heater be arranged on described heating cylinder, thus the resin viscosity of the molten resin penetrated from described injection nozzle is adjusted
Described resin viscosity computing unit calculates the resin viscosity of the molten resin that have adjusted described resin viscosity based on actual measurement injection pressure force value,
When the resin viscosity of described control unit to the molten resin calculating described resin viscosity judges and is judged to be that the resin viscosity of the molten resin of this judgement is accommodated in the scope of the resin viscosity of regulation,
Described advance and retreat driver element makes described injection nozzle and described contacting dies, again starts the automatic operation of the shaping repeatedly carrying out described formed products.
3. the automatic operation method of an injection machine, it is characterized in that, in described injection machine, rotate by making the screw rod in heating cylinder and retreat the measurement process carrying out molten resin, afterwards, as injection process, by before making described screw rod and then from the cavity injection molten resin of injection nozzle to mould being arranged on described heating cylinder front end
Described injection machine possesses: the material feeding number from described injection nozzle injecting molten resin is carried out to the material feeding counting number unit counted; The rotary drive unit that described screw rod rotates is made when carrying out described measurement process; And the advance and retreat driver element that described injection nozzle is retreated,
To advance being made described injection nozzle by this advance and retreat driver element and with the automatic operation of described contacting dies and Iteratively forming formed products, by described material feeding counting number unit, the material feeding number from described injection nozzle injecting molten resin is counted, when the material feeding number that this count down to reaches specified value, described advance and retreat driver element makes described injection nozzle retreat, described injection nozzle and described mould is made to retreat non-contiguously thus
Under the state making described injection nozzle and described mould retreat non-contiguously,
Resin viscosity computing unit calculates the resin viscosity of the molten resin penetrated from described injection nozzle based on actual measurement injection pressure force value,
When the resin viscosity of the described molten resin calculated is judged to be in the scope of the resin viscosity being accommodated in regulation by control unit,
Described advance and retreat driver element makes described injection nozzle and described contacting dies, again starts the automatic operation of the shaping repeatedly carrying out described formed products.
4. the automatic operation method of an injection machine, it is characterized in that, in described injection machine, rotate by making the screw rod in heating cylinder and retreat the measurement process carrying out molten resin, afterwards, as injection process, by before making described screw rod and then from the cavity injection molten resin of injection nozzle to mould being arranged on described heating cylinder front end
Described injection machine possesses: the working time for this injection machine carries out the timing unit counted; The rotary drive unit that described screw rod rotates is made when carrying out described measurement process; And the advance and retreat driver element that described injection nozzle is retreated,
To advance being made described injection nozzle by this advance and retreat driver element and with the automatic operation of described contacting dies and Iteratively forming formed products, the working time of described timing unit to described injection machine is utilized to count, when the working time that this count down to reaches the stipulated time, described advance and retreat driver element makes described injection nozzle retreat, described injection nozzle and described mould is made to retreat non-contiguously thus
Under the state making described injection nozzle and described mould retreat non-contiguously,
Resin viscosity computing unit calculates the resin viscosity of the molten resin penetrated from described injection nozzle based on actual measurement injection pressure force value,
When the resin viscosity of the described molten resin calculated is judged to be in the scope of the resin viscosity being accommodated in regulation by control unit,
Described advance and retreat driver element makes described injection nozzle and described contacting dies, again starts the automatic operation of the shaping repeatedly carrying out described formed products.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010175881A JP5629157B2 (en) | 2010-08-05 | 2010-08-05 | Automatic operation method of injection molding machine |
| JP2010-175881 | 2010-08-05 | ||
| PCT/JP2011/067063 WO2012017887A1 (en) | 2010-08-05 | 2011-07-27 | Automatic operation method for injection molding machine |
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| CN103068552A CN103068552A (en) | 2013-04-24 |
| CN103068552B true CN103068552B (en) | 2016-01-13 |
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| CN201180038627.0A Active CN103068552B (en) | 2010-08-05 | 2011-07-27 | The automatic operation method of injection machine |
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| JP (1) | JP5629157B2 (en) |
| CN (1) | CN103068552B (en) |
| WO (1) | WO2012017887A1 (en) |
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| JP5946732B2 (en) * | 2012-09-24 | 2016-07-06 | ファナック株式会社 | Temperature control device for injection molding machine having temperature correction function and temperature control method for injection molding machine |
| JP7259840B2 (en) * | 2018-03-22 | 2023-04-18 | 住友電気工業株式会社 | Optical fiber manufacturing method and manufacturing apparatus |
| WO2021054126A1 (en) * | 2019-09-17 | 2021-03-25 | Ｉ－Ｐｅｘ株式会社 | Resin sealing method and resin sealing die |
| CN114616083A (en) * | 2019-11-08 | 2022-06-10 | Ls美创有限公司 | Artificial intelligence-based injection molding system and molding condition generation method |
| CN113715284B (en) * | 2021-08-31 | 2022-11-08 | 中南大学 | Polymer viscosity on-line detection system and method for micro-scale rectangular slit |
| JP7560623B1 (en) | 2023-07-13 | 2024-10-02 | 株式会社ソディック | Injection molding machine and viscosity measurement method |
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|---|---|---|---|---|
| DE2121360A1 (en) * | 1970-04-30 | 1971-11-11 | Bucher & Guyer Ag Maschinenfab | Automatic viscosity regulation in extruding thermosetting plastics |
| FR2774323A1 (en) * | 1998-02-05 | 1999-08-06 | Segaplast | Automatic closed loop viscosity regulation equipment for injection molding press |
| JP2004142204A (en) * | 2002-10-23 | 2004-05-20 | Toyo Mach & Metal Co Ltd | Injection-molding machine and method for measuring resin viscosity in injection-molding machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04220324A (en) * | 1990-12-20 | 1992-08-11 | Sodick Co Ltd | Control method of viscosity of resin of injection molding machine |
| JPH06320587A (en) * | 1993-05-14 | 1994-11-22 | Olympus Optical Co Ltd | Injection molding machine |
| JP3475725B2 (en) * | 1997-06-20 | 2003-12-08 | 松下電工株式会社 | Injection molding method and apparatus |
| JP4342958B2 (en) * | 2004-01-08 | 2009-10-14 | 株式会社リコー | Manufacturing method of toner / developer bottle using recycled material and toner / developer bottle |
| JP4367172B2 (en) * | 2004-02-24 | 2009-11-18 | パナソニック電工株式会社 | Injection device and injection molding method |
| JP2008037068A (en) * | 2006-08-10 | 2008-02-21 | Mitsuba Corp | Injection molding method for resin |
-
2010
- 2010-08-05 JP JP2010175881A patent/JP5629157B2/en active Active
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2011
- 2011-07-27 WO PCT/JP2011/067063 patent/WO2012017887A1/en active Application Filing
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2121360A1 (en) * | 1970-04-30 | 1971-11-11 | Bucher & Guyer Ag Maschinenfab | Automatic viscosity regulation in extruding thermosetting plastics |
| FR2774323A1 (en) * | 1998-02-05 | 1999-08-06 | Segaplast | Automatic closed loop viscosity regulation equipment for injection molding press |
| JP2004142204A (en) * | 2002-10-23 | 2004-05-20 | Toyo Mach & Metal Co Ltd | Injection-molding machine and method for measuring resin viscosity in injection-molding machine |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012017887A1 (en) | 2012-02-09 |
| JP5629157B2 (en) | 2014-11-19 |
| CN103068552A (en) | 2013-04-24 |
| JP2012035459A (en) | 2012-02-23 |
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