CN206186263U - Electric servo cylinder and needle valve type hot runner system - Google Patents
Electric servo cylinder and needle valve type hot runner system Download PDFInfo
- Publication number
- CN206186263U CN206186263U CN201621254723.5U CN201621254723U CN206186263U CN 206186263 U CN206186263 U CN 206186263U CN 201621254723 U CN201621254723 U CN 201621254723U CN 206186263 U CN206186263 U CN 206186263U
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- screw mandrel
- servo electric
- electric jar
- nut
- rotor unit
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Abstract
The utility model discloses an electric servo cylinder and needle valve type hot runner system, electric servo cylinder includes the cylinder body and is located the rotor unit and the stator unit of cylinder body, the rotor unit is rotatable installation in stator unit, and fixed mounting has a screw -nut on the rotor unit, and the lead screw of making linear motion along the screw -nut axis is installed to the screw -nut fit in, produce rotating field after the stator unit circular telegram to make the rotor unit at the stator unit internal rotation, screw -nut follows rotor unit synchronous revolution, and the lead screw turns into screw -nut's rotation the linear motion of lead screw. The utility model discloses an electric servo cylinder makes the power consumption as the driving source, can drive the lead screw and make linear motion along screw -nut's axis, solved among the prior art that ordinary electric servo cylinder volume is great, hydro -cylinder oil leak, air cylinder thrust inadequately and stroke speed can not adjust the scheduling problem.
Description
Technical field
The utility model belongs to hot flow path injection molding technology field, and in particular to a kind of servo electric jar and needle valve type hot runner
System.
Background technology
Hot flow path（hot runner）Used in injection mold, the plastics of thawing are injected into the cavity of mould
Heating assembly set.TOP-TIP is typically made up of several parts such as hot nozzle, flow distribution plate, temperature control box and annex.Hot flow path
System is divided into open TOP-TIP and needle valve type hot runner system, will according to different product raw material, outward appearance and performance
Ask, and select corresponding satisfactory TOP-TIP, so that from corresponding form of nozzle.
The motion of needle is mainly by oil cylinder, cylinder and generic servo electric cylinder to drive in needle valve type hot runner system
It is dynamic, but cylinder thrust is inadequate and noise is big, and there is the risk of oil leak in oil cylinder pressure, cylinder and oil cylinder need timing more because sealing ring is aging
Change, the electronic cylinder volume of traditional servo is excessive cannot to be fitted into mould, and is more expensive to manufacture.
Utility model content
The purpose of this utility model is to provide a kind of servo electric jar and needle valve type hot runner system, its compact conformation,
Positioning precision is high, and stable, efficient.
To achieve these goals, the technical scheme that the utility model embodiment is provided is as follows：
A kind of servo electric jar, the servo electric jar includes cylinder body and the rotor unit in cylinder body and stator list
Unit, the rotor unit rotatable installation in stator unit, is installed with feed screw nut, in feed screw nut on rotor unit
Cooperation is provided with along feed screw nut's axis screw mandrel for linear motion, and the stator unit produces rotating excitation field after being powered, so that
Rotor unit rotates in stator unit, and feed screw nut follows rotor unit synchronous rotary, screw mandrel to turn the rotation of feed screw nut
Turn to the linear motion of screw mandrel.
As further improvement of the utility model, the position being electrically connected with screw mandrel is installed with the cylinder body and is passed
Induction device, the position sensing device is used for the movement position of Real-time Feedback screw mandrel.
Used as further improvement of the utility model, the position sensor is encoder, and encoder is fixedly installed in electricity
On the plate of road.
Used as further improvement of the utility model, the rotor unit includes rotor permanent magnet, and stator unit includes fixed
Subcoil.
As further improvement of the utility model, the servo electric jar include positioned at cylinder body two ends the first end cap and
Second end cap, the first end is covered and is provided with through hole, and the screw mandrel is through the first end cap and moves along a straight line in through-holes.
Used as further improvement of the utility model, the first end is covered and is provided with resettlement section at least side of through hole,
Stop pin is installed with the screw mandrel, when the screw mandrel moves along a straight line in through-holes, stop pin is mutually clamped with resettlement section
To prevent screw mandrel from rotating.
Used as further improvement of the utility model, the first end cap lower section is extended with some spacing below through hole
Portion, when the screw mandrel moves along a straight line in through-holes, stop pin is moved along a straight line between limiting section.
It is provided with along the direction longitudinally perpendicular with screw mandrel as further improvement of the utility model, on the screw mandrel and is run through
Hole, the stop pin is fixedly installed in the through hole.
Used as further improvement of the utility model, the servo electric jar includes clutch shaft bearing in cylinder body and the
Two bearings, the rotor unit includes the first installation portion and the second installation portion, and first installation portion is fixedly installed in first axle
Hold, the second installation portion is fixedly installed in second bearing.
Correspondingly, a kind of needle valve type hot runner system, the needle valve type hot runner system include above-mentioned servo electric jar,
And the needle fixedly mounted with screw mandrel, the needle valve type hot runner system is by the round fortune of servo electric jar valve needle work
It is dynamic.
The beneficial effects of the utility model are：
Servo electric jar use electricity as driving source, can drive screw it is for linear motion along the axis of feed screw nut,
Solve the larger electronic cylinder volume of generic servo in the prior art, oil cylinder oil leak, cylinder thrust not enough and travel speed can not
The problems such as regulation；
Servo electric jar accesses needle valve type hot runner system, can drive valve needle movements after energization, and the thrust of needle,
Shuttle speed, movement travel etc. can be adjusted can be adjusted according to technique, can shorten injection cycle, improve injection work
Skill.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments described in the utility model, for those of ordinary skill in the art, is not paying creative work
On the premise of, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the cross section structure diagram of servo electric jar in the specific embodiment of the utility model one；
Fig. 2 is the positive structure diagram of servo electric jar in the specific embodiment of the utility model one；
Fig. 3 is the side structure schematic view of servo electric jar in the specific embodiment of the utility model one；
Fig. 4 is the configuration schematic diagram of servo electric jar in the specific embodiment of the utility model one；
Fig. 5 is another visual angle configuration schematic diagram of servo electric jar in the specific embodiment of the utility model one；
Fig. 6 is the mounting structure schematic diagram of screw mandrel and stop pin in the specific embodiment of the utility model one；
Fig. 7 a, 7b are respectively the dimensional structure diagram of the first end cap in the specific embodiment of the utility model one.
Specific embodiment
The utility model is described in detail below with reference to specific embodiment shown in the drawings.But these embodiment party
Formula is not intended to limit the utility model, structure that one of ordinary skill in the art is made according to these implementation methods, method or
Conversion functionally is all contained in protection domain of the present utility model.
In each diagram of the present utility model, for the ease of diagram, structure or some partial sizes can be relative to them
Its structure or partial enlargement, therefore, it is only used for illustrating the basic structure of theme of the present utility model.
It is used herein for example " on ", " top ", D score, the term of the representation space relative position such as " lower section " be in order at just
A unit as shown in the drawings or feature are described in descriptive purpose relative to another unit or the relation of feature.It is empty
Between the term of relative position can be intended to include different azimuth of the equipment in use or work in addition to orientation shown in figure.
If for example, by figure equipment upset, be described as being located at other units or feature " lower section " or " under " unit will
Positioned at other units or feature " top ".Therefore, exemplary term " lower section " can include above and below both orientation.If
It is standby to be otherwise directed（It is rotated by 90 ° or other directions）, and correspondingly explain used herein and space correlation
Description language.
Although also, it should be understood that the grade of term first, second can be used to describing herein various elements or
Structure, but these are described object and should not be limited by these terms.These terms be only used for by these description objects that
This is distinguished.For example, primary heater can be referred to as secondary heater, and similarly secondary heater can also be referred to as
Primary heater, this is without departing from protection domain of the present utility model.
The utility model discloses a kind of servo electric jar, including cylinder body and rotor unit and stator in cylinder body
Unit, rotor unit rotatable installation in stator unit, is installed with feed screw nut on rotor unit, match somebody with somebody in feed screw nut
Conjunction is provided with along feed screw nut's axis screw mandrel for linear motion, and the stator unit produces rotating excitation field after being powered, so as to turn
Subelement is rotated in stator unit, and feed screw nut follows rotor unit to move, and the translating rotation of feed screw nut is silk by screw mandrel
The linear motion of bar.
Shown in ginseng Fig. 1 to Fig. 5, in a specific embodiment of the present utility model, servo electric jar includes cylinder body 10 and position
In rotor unit 20 and stator unit 30 in cylinder body, rotor unit 20 includes rotor permanent magnet 21, stator in present embodiment
Unit 30 includes stator coil 31.Stator coil 31 in stator unit 30 can produce rotating excitation field, rotor permanent magnet after being powered
Body 21 in the presence of rotating excitation field, can rotor driven unit 20 rotated.
Shown in ginseng Fig. 1, Fig. 4 and Fig. 5, it is installed with rotor unit 20 in feed screw nut 40, feed screw nut 40 and is coordinated
Screw mandrel 50 is installed.Wherein, feed screw nut 40 is fixedly installed in the inner side of rotor unit, therefore feed screw nut 40 can follow and turn
The rotation of subelement 20 and rotate.Screw mandrel 50 is installed along the axis of feed screw nut 40, and rotation to screw mandrel 50 is defined,
Make screw mandrel 50 be only capable of carrying out back and forth movement along the axis direction of feed screw nut 40, revolved without following the rotation of feed screw nut
Turn.In this way, after feed screw nut 40 and screw mandrel 50 cooperate and install, feed screw nut 40 can follow the rotation of rotor unit 20
And rotate, the translating rotation of feed screw nut 40 is screw mandrel 50 along the axis of feed screw nut 40 in the feed screw nut 40 by screw mandrel 50
Linear motion.
Shown in ginseng Fig. 1, Fig. 4 and Fig. 5, circuit board 60 is also installed with cylinder body 10, is installed with circuit board 60
Position sensor 61, the position sensor 61 is electrically connected with screw mandrel 50, can be used for the movement position of Real-time Feedback screw mandrel 50.
Present embodiment Position Sensor 61 uses encoder, certainly, in other embodiments can also be using outside encoder
Position sensor.
Further, the servo electric jar in present embodiment also includes the first end cap 71 positioned at the two ends of cylinder body 10 and the
Two end caps 72, the first end cap 71 is provided with through hole 711, and screw mandrel 50 is through the first end cap 71 and for linear motion in through hole 711.
Shown in ginseng Fig. 6, stop pin 51 is installed with the screw mandrel 50 in present embodiment, when screw mandrel 50 is in through hole 71
During linear motion, stop pin 51 is prevented from screw mandrel 50 and rotates.Preferably, direction perpendicular with the longitudinal direction of screw mandrel 50 on screw mandrel 50
It is provided with through hole（Non- label）, stop pin 51 is fixedly installed in the through hole, and the two ends of stop pin 51 protrude from through hole,
Cooperated with the associated components on the first end cap 71.
With reference to shown in Fig. 7 a, 7b, resettlement section 712, resettlement section are correspondingly provided with the both sides of through hole 711 on the first end cap 71
More than or equal to the diameter of stop pin 51, size and the stop pin 51 of the resettlement section 712 protrude from the portion of screw mandrel 50 to 712 width
Split-phase correspondence, when screw mandrel 50 moves to the top, collecting of the two ends correspondence of stop pin 51 positioned at through hole both sides on screw mandrel 50
In portion 712, and relative engaging, the position of screw mandrel 50 is fixed with this, can be effective by the engaging with resettlement section 712 of stop pin 51
Prevent screw mandrel 50 from following rotor unit to rotate.
Further, in order to ensure screw mandrel 50 when being moved along a straight line along the axis of feed screw nut 40, screw mandrel 50 does not follow silk
Stem nut 40 is rotated, and the lower section of the first end cap 71 is extended with two symmetrical limiting sections 713 below through hole 711.
Specifically, as shown in Figure 7a, two limiting sections 713 are set in circular arc, two middle sizes of limiting section 713 with it is logical
Hole 711 is equal in magnitude, for housing screw mandrel 50.Two corresponding stopper slots 714 are formed between two limiting sections 713, it is spacing
Groove 714 is correspondingly arranged with resettlement section 712, and stopper slot 714 width more than or equal to stop pin 51 diameter.In this way, working as silk
Bar 50 along feed screw nut 40 axis move along a straight line when, the stopper slot 714 formed by two limiting sections 713 on the first end cap 71
Stop pin 51 on screw mandrel 50 can be carried out spacing, stop pin 51 is carried out in stopper slot 714 along the axis of feed screw nut 40
Linear motion, it is ensured that screw mandrel 50 will not rotate in motion process.
Preferably, the screw mandrel 50 in present embodiment is made to come and go linear motion, stopper slot along the axis of feed screw nut 40
Maximum stroke movement of 714 length with the depth sum of resettlement section 712 not less than screw mandrel 50, to ensure to prevent in motion process
51 are shipped and resell on another market without departing from stopper slot 714 and resettlement section 712, it is ensured that the job stability of servo electric jar.
In addition, shown in ginseng Fig. 1, Fig. 4 and Fig. 5, the servo electric jar in present embodiment also includes being located in cylinder body 10
Clutch shaft bearing 81 and second bearing 82, the top of rotor unit 20 are fixed with the first installation portion 22, and lower section is fixed with second
Installation portion 23, the first installation portion 22 is fixedly installed on clutch shaft bearing 81, and the second installation portion 23 is fixedly installed in second bearing 82
On, rotor permanent magnet 21 is rotatably mounted between the first installation portion 22 and the second installation portion 23, and rotor unit 20 is realized with this
Installation.
It should be appreciated that by setting stop pin 51 on screw mandrel 50 in present embodiment, accordingly in the first end cap
71 are arranged at resettlement section 712 and the stopper slot 714 that stop pin 51 is engaged, so realize to screw mandrel 50 direction of rotation limit
System, in other embodiments can also be every to be used on the first end cap 71 or the second end cap 72 using the spacing of other forms
Protection domain of the present utility model is belonged in the structure on limitation screw mandrel direction of rotation.
Servo electric jar control in present embodiment is simple, can after the stator coil 31 in stator unit 30 is powered
Rotating excitation field is produced, is illustrated by taking alternating current as an example, stator coil 31 can produce periodically rotation after being passed through alternating current
Magnetic field, rotor permanent magnet 21 in the presence of periodic rotating excitation field, can rotor driven unit 20 periodically revolved
Turn.
Such as within the period 1, when rotor unit 20 in the first direction（Clockwise or counterclockwise）During rotation, feed screw nut
Follow 40 rotor units 20 in the first direction（Clockwise or counterclockwise）Synchronous rotary, now due to screw mandrel 50 and feed screw nut 40
Interaction, screw mandrel 50 is in the feed screw nut 40 by the first direction of feed screw nut 40（Clockwise or counterclockwise）Translating rotation
It is screw mandrel 50 along the linear motion of the axis of feed screw nut 40（Up or down）；
Accordingly, such as within second round, when rotor unit 20 in a second direction（Counterclockwise or clockwise）During rotation, silk
Stem nut follows 40 rotor units 20 in a second direction（Counterclockwise or clockwise）Synchronous rotary, now due to screw mandrel 50 and screw mandrel
The interaction of nut 40, screw mandrel 50 is in feed screw nut 40 by the second direction of feed screw nut 40（Counterclockwise or clockwise）Rotation
Walk around the linear motion for turning to screw mandrel 50 along the axis of feed screw nut 40（Downward or upward）.
In this way, servo electric jar only need to be in stator unit 30 stator coil 31 be passed through alternating current, you can realize screw mandrel
50 along the axis of feed screw nut 40 straight line back and forth movement.By parameters such as the size of control electric current, cycle, times, you can control
Movement travel, movement velocity of throwing bar etc., so as to realize the control to servo electric jar.
In addition, in the course of work of servo electric jar, position sensor 61（Such as encoder）Being capable of Real-time Collection silk
The movement position of bar 50, it is possible to realize the precise control of screw mandrel 50.
In another specific embodiment of the present utility model, needle valve type hot runner system include servo electric jar and
The needle fixedly mounted with screw mandrel in servo electric jar, needle valve type hot runner system can be made by servo electric jar valve needle
Back and forth movement, the servo electric jar is identical with the servo electric jar in above-mentioned implementation method, is no longer repeated herein.
New servo electric jar is used in present embodiment, the Shooting Technique of complexity is disclosure satisfy that, by controlling servo
The parameters such as size, cycle, the time of electric cylinder electric current, you can movement travel, movement velocity, hop count of control needle etc., so that
Control to needle valve type hot runner system is realized by servo electric jar.
This embodiment presents the advantage that：
High working efficiency, equipment life is long, it is not necessary to often change accessory, substantially reduces generation and maintenance cost；
Thrust, shuttle speed, movement travel of needle etc. can be adjusted, and needle control positioning precision is high, side simple to operate
Just；
Do not need petrol station or compressed air as power source, using electricity as driving source, noise is low, can clean life
Produce, reduce pollution.
It should be appreciated that being said so that servo electric jar accesses needle valve type hot runner system as an example in present embodiment
Bright, in other embodiments, servo electric jar applies also for the skills such as other TOP-TIPs, injection mold, Digit Control Machine Tool
Art field, no longer citing is illustrated one by one herein.
As can be seen from the above technical solutions, the utility model has the advantages that：
Servo electric jar use electricity as driving source, can drive screw it is for linear motion along the axis of feed screw nut,
Solve the larger electronic cylinder volume of generic servo in the prior art, oil cylinder oil leak, cylinder thrust not enough and travel speed can not
The problems such as regulation；
Servo electric jar accesses needle valve type hot runner system, can drive valve needle movements after energization, and the thrust of needle,
Shuttle speed, movement travel etc. can be adjusted can be adjusted according to technique, can shorten injection cycle, improve injection work
Skill.
It should be understood that, although the present specification is described in terms of embodiments, but not each implementation method only includes one
Individual independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art will should say
Used as an entirety, technical scheme in each implementation method can also be through appropriately combined, and forming those skilled in the art can for bright book
With the other embodiment for understanding.
The a series of tool described in detail only for feasibility implementation method of the present utility model of those listed above
Body illustrates that they are simultaneously not used to limit protection domain of the present utility model, all to be made without departing from the utility model skill spirit
Equivalent implementations or change should be included within protection domain of the present utility model.
Claims (10)
1. a kind of servo electric jar, it is characterised in that the servo electric jar includes cylinder body and the rotor unit in cylinder body
And stator unit, the rotor unit rotatable installation in stator unit, feed screw nut, silk are installed with rotor unit
Coordinate in stem nut and be provided with along feed screw nut's axis screw mandrel for linear motion, the stator unit produces rotary magnetic after being powered
, so that rotor unit rotates in stator unit, feed screw nut follows rotor unit synchronous rotary, and screw mandrel is by feed screw nut's
Translating rotation is the linear motion of screw mandrel.
2. servo electric jar according to claim 1, it is characterised in that be installed with the cylinder body electrical with screw mandrel
The position sensing device of connection, the position sensing device is used for the movement position of Real-time Feedback screw mandrel.
3. servo electric jar according to claim 2, it is characterised in that the position sensor is encoder, encoder
It is fixedly installed on circuit board.
4. servo electric jar according to claim 1, it is characterised in that the rotor unit includes rotor permanent magnet, fixed
Subelement includes stator coil.
5. servo electric jar according to claim 1, it is characterised in that the servo electric jar includes being located at cylinder body two ends
The first end cap and the second end cap, the first end covers and is provided with through hole, and the screw mandrel is through the first end cap and straight in through-holes
Line is moved.
6. servo electric jar according to claim 5, it is characterised in that the first end is covered at least side of through hole
Be provided with resettlement section, stop pin be installed with the screw mandrel, when the screw mandrel moves along a straight line in through-holes, stop pin with house
Portion is mutually clamped to prevent screw mandrel from rotating.
7. servo electric jar according to claim 6, it is characterised in that the first end cap lower section extends below through hole
There are some limiting sections, when the screw mandrel moves along a straight line in through-holes, stop pin is moved along a straight line between limiting section.
8. servo electric jar according to claim 6, it is characterised in that along longitudinally perpendicular with screw mandrel on the screw mandrel
Direction is provided with through hole, and the stop pin is fixedly installed in the through hole.
9. servo electric jar according to claim 1, it is characterised in that the servo electric jar includes being located in cylinder body
Clutch shaft bearing and second bearing, the rotor unit include the first installation portion and the second installation portion, and first installation portion is fixed
It is installed on clutch shaft bearing, the second installation portion is fixedly installed in second bearing.
10. a kind of needle valve type hot runner system, it is characterised in that the needle valve type hot runner system is included in claim 1 ~ 9
Servo electric jar described in any one and the needle with screw mandrel fixed installation, the needle valve type hot runner system pass through servo
Electric cylinder valve needle makees back and forth movement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621254723.5U CN206186263U (en) | 2016-11-16 | 2016-11-16 | Electric servo cylinder and needle valve type hot runner system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621254723.5U CN206186263U (en) | 2016-11-16 | 2016-11-16 | Electric servo cylinder and needle valve type hot runner system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206186263U true CN206186263U (en) | 2017-05-24 |
Family
ID=58727466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621254723.5U Active CN206186263U (en) | 2016-11-16 | 2016-11-16 | Electric servo cylinder and needle valve type hot runner system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206186263U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108068275A (en) * | 2016-11-16 | 2018-05-25 | 柳道万和(苏州)热流道系统有限公司 | Servo electric jar and needle valve type hot runner system |
| CN110690786A (en) * | 2018-07-05 | 2020-01-14 | 东佑达自动化科技股份有限公司 | Motor module of electric cylinder |
| CN111451474A (en) * | 2020-04-24 | 2020-07-28 | 燕山大学 | Double-station vacuum die casting machine |
| 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 |
-
2016
- 2016-11-16 CN CN201621254723.5U patent/CN206186263U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108068275A (en) * | 2016-11-16 | 2018-05-25 | 柳道万和(苏州)热流道系统有限公司 | Servo electric jar and needle valve type hot runner system |
| CN110690786A (en) * | 2018-07-05 | 2020-01-14 | 东佑达自动化科技股份有限公司 | Motor module of electric cylinder |
| CN111451474A (en) * | 2020-04-24 | 2020-07-28 | 燕山大学 | Double-station vacuum die casting machine |
| CN111451474B (en) * | 2020-04-24 | 2021-03-05 | 燕山大学 | Double-station vacuum die casting machine |
| 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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