CN108621375A - injection control system and control method for injection molding machine - Google Patents
injection control system and control method for injection molding machine Download PDFInfo
- Publication number
- CN108621375A CN108621375A CN201810379834.6A CN201810379834A CN108621375A CN 108621375 A CN108621375 A CN 108621375A CN 201810379834 A CN201810379834 A CN 201810379834A CN 108621375 A CN108621375 A CN 108621375A
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- Prior art keywords
- screw
- nozzle
- screw rod
- injection
- molding machine
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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
- B29C45/20—Injection nozzles
-
- 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
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/58—Details
- B29C45/60—Screws
-
- 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
- B29C45/72—Heating or cooling
- B29C45/74—Heating or cooling of the injection unit
-
- 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
- B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding material
-
- 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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76003—Measured parameter
- B29C2945/76006—Pressure
-
- 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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76003—Measured parameter
- B29C2945/7611—Velocity
Abstract
The present invention relates to injection molding machine technical fields, it is particularly used for the injection control system of injection molding machine, including, plasticizing apparatus, the plasticizing apparatus includes screw rod and barrel, the screw rod is arranged in the barrel, the barrel is hollow structure, it is provided with heating coil in the hollow structure, spiro driving device, the spiro driving device provides driving force for the screw rod, injection device, the injection device includes nozzle, the nozzle includes interconnecting piece and built-in portion, the interconnecting piece is connect with the barrel, the built-in portion is stretched in the sprue of mold, it is connected by spring between the sprue and mold, the sprue is with nozzle movement, the nozzle is used for the melt spray into die cavity, nozzle exit pressure detection device, for detecting nozzle exit pressure variation.The configuration of the present invention is simple, sprue cup can avoid plastics solidification in slag well with nozzle movement, the problem of influencing to be molded quality.
Description
Technical field
The present invention relates to injection molding technology fields, and in particular to the injection control system and method for injection molding machine.
Background technology
Injection molding is also known as injection moulded, and is the main method of thermoplastic plastics shaping.Its basic principle is exactly to utilize modeling
Granular or powdered plastic, is added to the hopper of injection molding machine by the extrudability and mouldability of material, and plastics are heated in injection molding machine
It melts and is allowed to keep flow regime, then under the pushed at high pressure of plunger or screw rod, noted quickly through the nozzle of barrel front end
It injects in the lower Guan Bi mould of temperature, after cooling and shaping, the plastics of melting are just solidified into required plastic.
In the injection moulding process of the prior art, there is a variety of influence injection moulded products qualitative factors, for example, injection material batch mixing
Speed and batch mixing volume can influence the injection molding quality of moulding, or during injection molding, sprue cup always with cover half
Contact, causes to cause plastics solidification in slag well due to rapid heat dissipation, influences the injection molding quality of moulding, also, the prior art
In be all that gait of march by controlling screw rod and traveling distance judge the full situation of cavity in mold, but due to temperature
The influence of the factors such as degree, viscosity, in different cycles, same screw displacement amount may cause different injection volumes, therefore,
It can not accurately judge the full journey of cavity in mold simply by screw displacement amount is preset to control injection volume
Degree, the above factor can all influence moulding injection molding quality.
Therefore, based on the above issues, it is necessary to provide one kind can batch mixing uniformly, avoid in slag well plastics solidification and
The equipment and control method of the full situation for judging mold cavity that can be promptly and accurately.
Invention content
Plastics are easy solidification in slag well when being injected the technical problem to be solved by the present invention is to injection molding machine in the prior art,
Quality and the cavity filling degree judging nicety rate for influencing moulding are low, the problem of influencing moulding quality.
In order to solve the above technical problems, the invention discloses the injection control system of injection molding machine, specifically, described for noting
The injection control system of molding machine, including：
Plasticizing apparatus, the plasticizing apparatus include screw rod and barrel, and the screw rod is arranged in the barrel, the barrel
For hollow structure, it is provided with heating coil in the hollow structure,
Spiro driving device, the spiro driving device provide driving force for the screw rod,
Injection device, the injection device include nozzle, and the nozzle includes interconnecting piece and built-in portion, the interconnecting piece with
The barrel connection, the built-in portion stretch in the sprue cup of mold, are connected by spring between the sprue cup and mold
It connecing, the sprue cup is used for the melt spray into the cavity of mold with nozzle movement, the nozzle,
Nozzle exit pressure detection device, the pressure change for detecting nozzle.
Further, the sprue cup outer cover is equipped with locating ring, the space for limiting the sprue cup.
Further, the built-in portion of the nozzle is pyramidal structure.
Further, the screw rod includes screw head, screw column and screw shank, described screw column one end and the screw head
Connection, the other end of the screw column are connect with the screw shank, and multiple discharge holes, the screw rod are provided on the screw head
Screw thread is provided on column, face is provided with convex block outside the screw thread, and the screw shank is connect with the spiro driving device.
Preferably, the convex block is triangular structure.
Preferably, the spiro driving device is motor or hydraulic motor.
Further, the system also includes：
Screw rod speed control device, the speed of service for controlling screw rod,
Screw stroke control device, the traveling distance for controlling screw rod；
Alarm modules are sent out when the change value of pressure for the speed of service of screw rod, traveling distance and nozzle is unqualified
Alarm.
Further, the screw rod speed control device is velocity sensor, and the screw stroke control device is
Displacement sensor.
Further, to solve problems of the prior art, the present invention also provides the injection controls for injection molding machine
Method processed, specifically, described method includes following steps：
The current speed of service v of screw rod is judged whether within the scope of default speed of service v', if so, control screw rod is with current
Speed of service v runs preset time T, if it is not, sending out alarm；
The traveling distance s in preset time T inner screw is judged whether within the scope of default traveling distance s', if so, judging
In the range of whether the variation delta p of the pressure of preset time T inner nozzle is in preset pressure variation delta p', if so, into
Otherwise packing stage sends out alarm.
Further, the preset pressure of the default speed of service v' of the screw rod, default traveling distance s' and nozzle become
Change amount Δ p' is pre-set according to the property of material.
Using above-mentioned technical proposal, the injection control system and control method of the present invention for injection molding machine has such as
Lower advantageous effect：
1) in the injection control system of the present invention for injection molding machine, by the mainstream that nozzle segment is put in mold
In road cup, the heat-transfer rate and heat conduction amount to sprue cup are increased, while the sprue cup in the present invention can be with nozzle one
Rise movement, especially after the completion of injection, can be retreated with nozzle, effectively prevent sprue cup contacted always with cover half by
The problem of causing plastics solidification in slag well in rapid heat dissipation, influencing to be molded quality；
2) it is provided with triangular bump on the screw thread on the screw rod in the injecting systems of the present invention for injection molding machine,
Batch mixing speed and batch mixing quality can be improved；
3) the injection control system of the present invention for injection molding machine sets barrel to middle structure, and in hollow knot
Coil is set in structure, can ensure that raw material is heated evenly during injection molding, it will not be due to part heat during processing
The loss of amount, and cause injection molding density decline the problem of.
4) the injection control system of the present invention for injection molding machine, successively to screw rod gait of march, traveling distance with
And the changing value of nozzle exit pressure is detected, it can in time, accurately judge the filling degree of cavity in mold, be suitable for not
With size, form mold and be suitable for different materials, the injection molding quality of product can be improved.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is the structural schematic diagram of the injection control system described in embodiment 1 for injection molding machine；
Fig. 2 is the enlarged drawing at I in Fig. 1；
Fig. 3 is the structural schematic diagram of screw rod described in embodiment 1；
Fig. 4 is the method flow diagram of the injection control system for injection molding machine described in embodiment 2；
In figure, 1- plasticizing apparatus, 11- screw rods, 111- screw heads, 1111- discharge holes, 112- screw columns, 1121- screw threads,
11211- convex blocks, 113- screw shanks, 12- barrels, 121- heating coils, 2- spiro driving devices, 3- nozzles, 4- molds, 41- types
Chamber, 42- sprue cups, 5- springs, 6- locating rings, 7- spiro driving devices.
Specific implementation mode
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The every other embodiment that member is obtained without making creative work should all belong to the model that the present invention protects
It encloses.
" one embodiment " or " embodiment " referred to herein refers to that may be included at least one realization method of the present invention
A particular feature, structure, or characteristic.In the description of the present invention, it is to be understood that, term "upper", "top", "bottom", etc. instructions
Orientation or positional relationship be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description the present invention and simplification retouch
It states, does not indicate or imply the indicated device or element must have a particular orientation, with specific azimuth configuration and operation,
Therefore it is not considered as limiting the invention.In addition, term " first ", " second " are used for description purposes only, and cannot understand
To indicate or implying relative importance or implicitly indicate the quantity of indicated technical characteristic.Define as a result, " first ",
The feature of " second " can be expressed or what is implied includes one or more this feature.Moreover, term " first ", " second "
Etc. being for distinguishing similar object, without being used to describe specific sequence or precedence.It should be appreciated that use in this way
Data can be interchanged in the appropriate case, so that the embodiment of the present invention described herein can be in addition to illustrating or retouching herein
Sequence other than those of stating is implemented.
Embodiment 1：
To solve problems of the prior art, the present invention provides the injection control systems for injection molding machine, specifically
, refering to fig. 1, Fig. 2 and Fig. 3, the injection control system for injection molding machine include：
Plasticizing apparatus 1, spiro driving device 7, injection device and nozzle exit pressure detection device (not shown), the modeling
It includes screw rod 11 and barrel 12 that makeup, which sets 1, and the screw rod 11 is arranged in the barrel 12, and the barrel 12 is hollow structure,
Heating coil 121 is provided in the hollow structure, it is to be understood that heat by being arranged in the hollow structure of barrel 12
Coil 121 can ensure that raw material is heated evenly during injection molding, will not be due to partial heat during processing
The problem of losing, and the density of injection molding caused to decline.
The spiro driving device 7 is that the screw rod 11 provides driving force, preferably, the spiro driving device 7
For motor.It is understood that the effect of the spiro driving device 7 be driving screw rod 11 advance or drive screw rod 11 retreat because
This, is only the preferred embodiment of the present invention using motor as driving source, is not limited, other enforceable
In scheme, the spiro driving device 7 can also be preferably hydraulic motor.
Further, the screw rod 11 includes screw column 112, screw head 111 and screw shank 113, the screw column 112 1
End is connect with the screw head 111, and the other end of the screw column 112 is connect with the screw shank 113, the screw head 111
On be provided with multiple discharge holes 1111, preferably, being staggered between multiple discharge holes 1111, on the screw column 112
It is provided with screw thread 1121, the outer surface of the screw thread 1121 is provided with convex block 11211, and the screw shank 113 is driven with the screw rod
Dynamic device 7 connects.
As a preferred embodiment, the convex block 11211 on the screw thread 1121 is triangular structure, the triangle
The height of structure is 3~6mm, it is to be understood that convex block 11211 is arranged on the screw thread 1121 can increase spiral shell 1121
The diameter of line effectively prevent screw rod 11 to skid, while can improve batch mixing speed and batch mixing quality.
Further, as a preferred embodiment, in this embodiment, the discharge port on the screw head 111 is set
1111 be waist-shaped hole structure, and angle, the range of the angle are formed between 112 center line of the waist-shaped hole structure and screw column
It it is 15 °~30 °, preferably, in the present embodiment, the angle is preferably 15 °.Obvious, which is only one excellent
Scheme is selected, it, can also preferably others angles, such as 30 ° of angles in other enforceable schemes.Further, described
Waist-shaped hole is staggered.Preferably, the width of the waist-shaped hole is 2~5mm, the length of the waist-shaped hole is 4~8mm.
It is understood that opening up waist-shaped hole on the screw head 111, the melt after preformed can be effectively improved and branch to inflow storage
Expect in room, improves injection efficiency.
Further, it is additionally provided with branching block on the screw column 112, preferably, the branching block is triangle
Structure, the branching block are arranged in parallel with the screw thread 1121.Preferably, the height of the triangle branching block with it is described
Material can be divided repeatedly, to change the flowing of object bucket by the way that triangle branching block is arranged with height the outer surface of screw thread 1121
Situation promotes the melting of material, enhancing to be kneaded and be homogenized, also, uses triangular structure in the present invention, utilizes triangular structure
The characteristics of there are wedge angles for junction, can quickly shunt material, and material can be promoted to be kneaded plasticizing and improve material
Plasticizing quality.It is understood that the height of above-mentioned branching block is only a preferred embodiment, and it is not limited thereof.
Further, the injection device includes nozzle 3, and the nozzle 3 is used to spray into the cavity 41 of mold 4 molten
Body, the nozzle 3 include interconnecting piece and built-in portion, and the interconnecting piece is connect with the barrel 12, and mold 4 is stretched in the built-in portion
Sprue cup 42 in, connected by spring 5 between the sprue cup 42 and mold 4, the sprue cup 42 with nozzle 3 transport
Dynamic, when per injection, which finishes nozzle 3, to be retreated, sprue cup 42 will also retreat under the effect of spring 5 with nozzle 3, in this way can be with
Avoid sprue cup 42 from being contacted with cover half always due to rapid heat dissipation and cause slag well (slag well be prevent cold burden enter cavity and
Plastic part quality is influenced, and enables a melt successfully structure full of cavity.Slag well is generally arranged at sprue end, when
When runner length is longer, slag well should be also opened up in end.It is storage melt stream front end " cold burden ", this cold burden that it, which is acted on,
Actually a small amount of temperature is less than the melt of melt temperature, if the lower cold burden of this temperature can form cold joint into cavity
Seam, to largely effect on quality of item.) interior plastics solidification, moulding injection molding quality is provided.
Further, the nozzle exit pressure detection device (not shown) is used to detect the pressure change of nozzle 3.Pass through
The situation of change for detecting the pressure of nozzle 3 judges the filling degree of cavity 41 in mold 4, can effectively grasp the full of cavity 41
Situation.
Further, 42 outer cover of sprue cup is equipped with locating ring 6, the movement for limiting the sprue cup 42
Space.
Further, the built-in portion of the nozzle 3 is pyramidal structure, and condensate in sprue cup 42 can be made to be sprayed with injector
Mouth pulls out outside mould together, is convenient to clean runner.
Further, the system also includes：
Screw rod speed control device (not shown), the speed of service for controlling screw rod,
Screw stroke control device (not shown), the traveling distance for controlling screw rod；
Alarm modules (not shown) is used for the speed of service, the pressure change of traveling distance and nozzle 3 of screw rod 11
When being worth unqualified, alarm is sent out.
It is understood that the gait of march of screw rod 11 determines the flowing velocity of melt, speed control is bad to be influenced
The quality of moulding.Further, traveling distance, that is, injection volume of screw rod 11, it is determined by the property of mold size and material
, injection volume is too small, can cause shrink of product, and injection volume is excessive, can cause product overlap, mold is may be damaged when serious,
Therefore, it is necessary to the gait of march and traveling distance progress control to screw rod 11.Specifically, passing through velocity sensor in the present invention
The gait of march of control screw rod 11 makes it within the scope of preset gait of march, and the traveling of screw rod 11 is controlled by displacement sensor
Distance makes it within the scope of preset traveling distance, and ensures the change value of pressure of nozzle 3 pre- by nozzle exit pressure sensor
If change value of pressure in the range of, in time, accurately judge the filling degree of cavity 41 in mold, improve the injection molding of moulding
Quality.
Embodiment 2：
The present embodiment is related to the injection control method for injection molding machine, specifically, refering to Fig. 4, the method includes as follows
Step：
S1, the current speed of service v of screw rod 11 is judged whether within the scope of default speed of service v', if it is not, sending out alarm；
If so, step S2 is executed,
S2, control screw rod 11 run preset time T with current speed of service v,
S3, the traveling distance s in preset time T inner screw 11 is judged whether within the scope of default traveling distance s', if so,
Step S4 is executed,
S4, judge the variation delta p in the pressure of preset time T inner nozzle 3 whether preset pressure variation delta p''s
In range, if so, into packing stage, alarm is otherwise sent out.
Further, the preset pressure of the default speed of service v' of the screw rod 11, default traveling distance s' and nozzle
Variation delta p' is pre-set according to the property of material.
It is understood that making it in preset row by the gait of march of speed sensorless control screw rod 11 in the present invention
Into in velocity interval, the traveling distance of screw rod 11 is controlled by displacement sensor makes it within the scope of preset traveling distance, and
The change value of pressure for ensuring nozzle 3 by nozzle exit pressure sensor meets in the range of preset change value of pressure when simultaneously
Just into packing stage when condition, by successively to the pressure change of the gait of march of screw rod 11, traveling distance and nozzle 3
Value sentences end, in time, accurately judges the filling degree of cavity 41 in mold 4, improves the injection molding quality of moulding.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (10)
1. the injection control system for injection molding machine, which is characterized in that including：
Plasticizing apparatus (1), the plasticizing apparatus (10) include screw rod (11) and barrel (12), and the screw rod (11) is arranged described
In barrel (12), the barrel (12) is hollow structure, and heating coil (121) is provided in the hollow structure,
Spiro driving device (7), the spiro driving device (7) are that the screw rod (11) provides driving force,
Injection device, the injection device include nozzle (3), and the nozzle (3) includes interconnecting piece and built-in portion, the interconnecting piece
It is connect with the barrel (12), the built-in portion is stretched in the sprue cup (42) of mold (4), the sprue cup (42) and mould
It is connected by spring (5) between tool (4), the sprue cup (42) moves with nozzle (3), and the nozzle (3) is used for mold
(4) cavity (41) interior melt spray,
Nozzle exit pressure detection device, the pressure change for detecting nozzle (3).
2. the injection control system according to claim 1 for injection molding machine, which is characterized in that the sprue cup (42)
Outer cover is equipped with locating ring (6), the space for limiting the sprue cup (42).
3. the injection control system according to claim 1 for injection molding machine, which is characterized in that the nozzle (3) it is interior
It is pyramidal structure to set portion.
4. being used for the injection control system of injection molding machine according to claim 1, which is characterized in that the screw rod (11) includes spiral shell
Head (111), screw column (112) and screw shank (113), described screw column (112) one end are connect with the screw head (111),
The other end of the screw column (112) is connect with the screw shank (113), and multiple dischargings are provided on the screw head (111)
Hole (1111) is provided with screw thread (1121) on the screw column (112), and face is provided with convex block outside the screw thread (1121)
(11211), the screw shank (113) connect with the spiro driving device (7).
5. the injection control system according to claim 4 for injection molding machine, which is characterized in that the convex block (11211)
For triangular structure.
6. the injection control system according to claim 1 or 4 for injection molding machine, which is characterized in that the screw drive
Device (7) is motor or hydraulic motor.
7. the injection control system according to claim 1 for injection molding machine, which is characterized in that the system also includes：
Screw rod speed control device, the speed of service for controlling screw rod (11),
Screw stroke control device, the traveling distance for controlling screw rod (11)；
Alarm modules are sent out when the change value of pressure for the speed of service of screw rod (11), traveling distance and nozzle is unqualified
Alarm.
8. the injection control system according to claim 7 for injection molding machine, which is characterized in that the screw rod speed of service
Control device is velocity sensor, and the screw stroke control device is displacement sensor.
9. the injection control method for injection molding machine, which is characterized in that real by the injection control system described in claim 1-8
It applies, the method includes：
The current speed of service v of screw rod (11) is judged whether within the scope of default speed of service v', if so, control screw rod is with current
Speed of service v runs preset time T, if it is not, sending out alarm；
The traveling distance s in preset time T inner screw (11) is judged whether within the scope of default traveling distance s', if so, judging
In the range of whether the variation delta p of the pressure of preset time T inner nozzle (3) is in preset pressure variation delta p', if so, into
Enter packing stage, otherwise sends out alarm.
10. the injection control method according to claim 9 for injection molding machine, which is characterized in that the screw rod is preset
The preset pressure variation delta p' of speed of service v', default traveling distance s' and nozzle are pre-set according to the property of material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810379834.6A CN108621375A (en) | 2018-04-25 | 2018-04-25 | injection control system and control method for injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810379834.6A CN108621375A (en) | 2018-04-25 | 2018-04-25 | injection control system and control method for injection molding machine |
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| CN108621375A true CN108621375A (en) | 2018-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810379834.6A Pending CN108621375A (en) | 2018-04-25 | 2018-04-25 | injection control system and control method for injection molding machine |
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| CN114750382A (en) * | 2022-03-31 | 2022-07-15 | 浙江凯华模具有限公司 | Injection pressure control system and control method |
| CN117001967A (en) * | 2023-10-07 | 2023-11-07 | 博创智能装备股份有限公司 | Injection molding machine with high repetition precision and control system thereof |
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| CN114750382A (en) * | 2022-03-31 | 2022-07-15 | 浙江凯华模具有限公司 | Injection pressure control system and control method |
| CN114750382B (en) * | 2022-03-31 | 2024-03-19 | 浙江凯华模具有限公司 | Injection molding pressure control system and control method |
| CN117001967A (en) * | 2023-10-07 | 2023-11-07 | 博创智能装备股份有限公司 | Injection molding machine with high repetition precision and control system thereof |
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Application publication date: 20181009 |
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| RJ01 | Rejection of invention patent application after publication |