CN108748921A - High-precision injection molding part production equipment and its production technology - Google Patents
High-precision injection molding part production equipment and its production technology Download PDFInfo
- Publication number
- CN108748921A CN108748921A CN201810876826.2A CN201810876826A CN108748921A CN 108748921 A CN108748921 A CN 108748921A CN 201810876826 A CN201810876826 A CN 201810876826A CN 108748921 A CN108748921 A CN 108748921A
- Authority
- CN
- China
- Prior art keywords
- conveying
- injection molding
- conveying shell
- heating component
- transition passage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/57—Exerting after-pressure on the 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
- 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
Abstract
The present invention relates to injection molding arts, more specifically, it relates to a kind of high-precision injection molding part production equipment and its production technology.A kind of high-precision injection molding part production equipment, including feeding equipment and molding machine, feeding equipment includes the conveying shell of hollow cylinder shape, positioned at conveying enclosure interior and along the conveying screw rod in conveying shell length direction and the driving motor being connected with conveying screw rod one end positioned at conveying hull outside, convey the transition passage that the one end of shell far from driving motor is equipped with connection conveying enclosure interior and molding machine, it is equipped with keying plate able to turn on or off between transition passage and conveying shell, it is equipped with heating component on the outside of conveying shell and transition passage, the downside of transition passage is equipped with discharge port, discharge port is equipped with the hand-operated valve that control opens and closes discharge port.It can enter in transition passage after raw material is primary melting in conveying shell, heating component continuous heating reaches the temperature requirement of injection molding, avoids substandard products occur since temperature is not achieved.
Description
Technical field
The present invention relates to injection molding arts, more specifically, it relates to a kind of high-precision injection molding part production equipment and its production technology.
Background technology
By making its fusing, the plastics of fusing be pushed away by screw rod transmission mechanism plastic heating when traditional moulding produces
Move away, into the forming cavity of mold in be molded.
But the moulding production equipment of the prior art has the following problems：The feed inlet of raw material is normally at screw rod transmission
The upside of mechanism can't clear up the plastics of screw rod transmission mechanism internal residual after darg, therefore
The clout for having part remains to second day.Plastics by the cooling fusing of a whole night have solidified again, when next day goes into operation,
Raw material just starts to enter in cavity when melting and not reaching suitable injection temperature, and the several batches in front is caused to be susceptible to
Substandard products.
Invention content
It is set in view of the deficienciess of the prior art, one of present invention is designed to provide a kind of production of high-precision injection molding part
It is standby, the phenomenon that its advantage lies in being able to be susceptible to substandard products when avoiding machine from just going into operation.
To achieve the above object, the present invention provides following technical solutions：A kind of high-precision injection molding part production equipment, including
Feeding equipment and molding machine, the feeding equipment include hollow cylinder shape conveying shell, be located at conveying enclosure interior and
The conveying screw rod in edge conveying shell length direction and the driving motor being connected with conveying screw rod one end positioned at conveying hull outside,
The described one end of conveying shell far from driving motor is equipped with the transition passage of connection conveying enclosure interior and molding machine, the mistake
It crosses between channel and conveying shell and is equipped with keying plate able to turn on or off, heating is equipped on the outside of the conveying shell and transition passage
The downside of component, the transition passage is equipped with discharge port, and the discharge port is equipped with the hand-operated valve that control opens and closes discharge port.
By using above-mentioned technical proposal, transition passage is set between conveying shell and molding machine, and pass through multistage
The mode of heating to adjust into trip temperature, and the control of temperature can more precisely.Hand-operated valve is opened after same day completion of processing so that more
Remaining raw material is discharged into from hand-operated valve in receiver.When next day processes for the first time, hand-operated valve is closed, the piston rod for opening and closing cylinder is received
Contracting so that transition passage is connected to again with conveying shell.It can be logical into transition after raw material is primary melting in conveying shell
In road, reach the temperature requirement of injection molding during conveying in transitional shell by heating component continuous heating, avoid due to
Temperature is not achieved and substandard products occurs.
The present invention is further arranged to：The conveying shell is equipped with close to the upside of driving motor one end and conveys in shell
The material storing box that portion is connected.
By using above-mentioned technical proposal, since material storing box is connected on the upside of conveying shell, the material in conveying shell
When transferring out, the material in material storing box can be packed under the action of self-weight in conveying shell.
The present invention is further arranged to：The heating component include be arranged conveying hull outside the first heating component,
Second heating component and the third heating component being arranged on the outside of transition passage；First heating component is located at close to driving electricity
One end of machine, and the heating temperature of the first heating component is less than the fusion temperature of plastics, the second heating component and third heating group
The heating temperature of part is higher than the fusion temperature of plastics.
By using above-mentioned technical proposal, by the control of three sections of heating devices so that the raw material at material storing box charging will not
Fusing avoids the raw material cooled and solidified of fusing from being fed at influence after one piece.
The present invention is further arranged to：The side of the conveying shell and transition passage connecting pin is equipped with mounting bracket, described
Mounting bracket is equipped with and opens and closes cylinder, and the plate that opens and closes is connected with the piston rod of keying cylinder；When the piston rod for opening and closing cylinder is complete
When full stretching, plate closing conveying shell and transition passage junction are opened and closed；When open and close cylinder piston rod income when, open and close plate from
Open the junction of conveying shell and transition passage.
By using above-mentioned technical proposal, the flexible of plate is opened and closed by opening and closing cylinder control and realizes the dynamic of opening and closing
Make.
The present invention is further arranged to：The position of face transition passage on plate is opened and closed when the keying plate closing transition passage
Equipped with venthole, the upper side for opening and closing plate is equipped with the air admission hole being connected with venthole, and confession is connected on the air admission hole
Tracheae, the air supply pipe, which is equipped with, controls its control valve opened and closed.
By using above-mentioned technical proposal, compressed air is delivered by air admission hole by transition by air supply pipe gas supply and is led to
In road, the material extruding of fusing is discharged by air pressure.
The present invention is further arranged to：The side for opening and closing plate is equipped with detection block, and the mounting bracket is equipped with close open
It closes, the close switch of detection block face when piston rod is fully extended；It is opened close to control valve when switch response, close to switch
Control valve is closed when being not responding to.
By using above-mentioned technical proposal, judge to open and close whether plate closes to coordinate close to switch detection by detection block.
The opening controlling valve when opening and closing plate and being closed opens and closes closing control valve when plate is in open state.
The present invention is further arranged to：The transition passage is obliquely installed and is higher-end with conveying shell connecting pin.
By using above-mentioned technical proposal, setting transition passage is tilted down from conveying shell toward molding machine so that raw material
More easily enter in molding machine.
The present invention is further arranged to：The lower section of the discharge port is equipped with receiver.
By using above-mentioned technical proposal, the raw material being discharged from discharge port is recycled by receiver.
The present invention is further arranged to：The inside of the receiver is separated into multiple minizones, the bottom of each minizone
It is equipped with mandril, the lower end of mandril is equipped with the chassis being connected with all mandrils, and spring is equipped between the chassis and receiver；Bullet
When spring is in normal condition, the upper surface of mandril is concordant with the inner bottom surface of receiver.
By using above-mentioned technical proposal, separated by multiple minizones when the material of fusing enters in receiver.Each area
It is frozen into solid-state after interior material cooling.At this time receiver is pressed downward so that the material solidified is ejected by mandril so that
Material can be recycled with the state of smaller piece, do not needed additional processing and can be put into material storing box and used as raw material.
It is another object of the present invention to provide a kind of production technologies producing high-precision injection molding part using above equipment.
The present invention provides following technical solutions：A kind of technique producing high-precision injection molding part using above-mentioned production equipment,
Including：
A, dispensing：Raw material is mixed according to certain proportioning, and is stirred evenly；
B, fusion plastification：The raw material prepared is put into material storing box, is added by the first heating component, the second heating component and third
It is reached after hot component Multi-stage heating and requires temperature；
C, pressure injection：To the raw material under molten condition under certain pressure and speed, by injection device by the original of melting
In material injection mold cavity；
D, mold filling cools down：After being full of fused raw material in mold cavity, certain pressure is kept to wait for fused raw material cooling and solidifying；
E, backform pickup：It molds after complete cooling, is ejected product with mold pushing mechanism.
By using above-mentioned technical proposal, plastic part is produced using the production equipment through the above scheme.
In conclusion the invention has the advantages that：
1, can enter in transition passage after raw material is primary melting in conveying shell, during conveying in transitional shell
The temperature requirement for reaching injection molding by heating component continuous heating avoids substandard products occur since temperature is not achieved；
2, it is supplied by air supply pipe and delivers into compressed air in transition passage by air admission hole, by air pressure by the original of fusing
Material squeezes discharge, avoids having big content of starting materials to remain in transition passage.
Description of the drawings
Fig. 1 is the structural schematic diagram of embodiment；
Fig. 2 is the schematic cross-sectional view of embodiment；
Fig. 3 is the enlarged drawing at A in Fig. 2；
Fig. 4 is the enlarged drawing at B in Fig. 1.
Reference numeral：1, feeding equipment；2, molding machine；3, shell is conveyed；4, conveying screw rod；5, driving motor；6, it stores up
Hopper；7, the first heating component；8, the second heating component；9, transition passage；10, mounting bracket；11, cylinder is opened and closed；12, it opens and closes
Plate；13, venthole；14, air admission hole；15, air supply pipe；16, control valve；17, detection block；18, close to switch；19, discharge port；
20, hand-operated valve；21, receiver；22, mandril；23, chassis；24, spring；25, third heating component.
Specific implementation mode
With reference to attached drawing, the invention will be further described.
Embodiment one：
As shown in Figure 1, a kind of high-precision injection molding part production equipment, including feeding equipment 1 and molding machine 2, pass through feeding equipment 1
Feedstock transportation is entered in molding machine 2, is molded according to the shape of 2 inside die cavity of molding machine, produces product.
As shown in Fig. 2, feeding equipment 1 includes the conveying shell 3 of hollow cylinder shape, the inside of conveying shell 3 is equipped with
Along the conveying screw rod 4 of conveying 3 length direction of shell, one end of conveying screw rod 4 and the driving motor 5 positioned at 3 outside of conveying shell
It is connected, the conveying screw rod 4 rotation is driven by driving motor 5.Conveying shell 3 be equipped on the upside of 5 end of driving motor with
The material storing box 6 being connected inside shell 3 is conveyed, the raw material in material storing box 6 enters under gravity in conveying shell 3.It is defeated
Send the outside of shell 3 that first heating component 7 and the second heating component 8 are installed, the first heating component 7 is located at close to driving motor
5 one end, the second heating component 8 are located remotely from one end of driving motor 5.First heating component 7 and the second heating component 8 can be with
It is the outside that heating wire is mounted on conveying shell 3 in a manner of coating, other heating components can also be selected.First heating group
Part 7 and the second heating component 8 can control respectively so that the first heating component 7 and the second heating component 8 can reach different
Heating temperature.
As shown in Figures 2 and 3, the one end of conveying shell 3 far from driving motor 5 is welded with is connected with inside conveying shell 3
Transition passage 9, transition passage 9 is connected to the middle part of conveying shell 3 end face and its diameter is less than the diameter of conveying shell 3.It crosses
The outside for crossing channel 9 is equipped with third heating component 25 and is heated to the raw material in transition passage 9, avoids the too low nothing of its temperature
Method reaches injection molding and requires.The other end of transition passage 9 is connected diagonally downward and with molding machine 2, and the raw material of fusing is from conveying shell
After delivering into transition passage 9 in body 3, switching is used as by transition passage 9, feedstock transportation is entered into molding in molding machine 2.
Mounting bracket 10 is installed on the upside of conveying shell 3 and 9 connecting pin of transition passage, is equipped on mounting bracket 10 and opens and closes cylinder 11, opened
Hold one's breath cylinder 11 piston rod on be connected with stretch into conveying shell 3 in keying plate 12.It opens and closes plate 12 and is fitted in the interior of conveying shell 3
On side end face and the width of keying plate 12 is more than the diameter of transition passage 9.When piston rod is taken in completely in keying cylinder 11, open and close
Plate 12 is located at the top of conveying shell 3 and 9 junction of transition passage；When piston rod is fully extended, opens and closes plate 12 and be closed conveying
9 junction of shell 3 and transition passage.It opens the position for opening and closing face transition passage 9 on keying plate 12 when plate 12 is closed transition passage 9
There are venthole 13, the upper side of keying plate 12 to be provided with air admission hole 14 and be connected with venthole 13, air admission hole 14 is connected with air supply pipe
15, control valve 16 is installed on air supply pipe 15.The side of plate 12 is opened and closed integrally formed with detection block 17, is equipped on mounting bracket 10
Close to switch 18.18 face detection block 17 of switch is approached when piston rod is fully extended and is responded, and at this time control valve 16 is opened；
When being not responding to close to switch 18, control valve 16 is closed, and stops gas supply.
As shown in figure 4, forming discharge port 19 on the downside of 9 lower end of transition passage, discharge port 19 is equipped with hand-operated valve 20,
It can be by manually controlling the keying of discharge port 19.The lower section of discharge port 19 is equipped with receiver 21, the inside of receiver 21 every
At multiple minizones.The bottom of each minizone is installed with mandril 22, and the lower end of mandril 22 is connected on the same chassis 23,
Spring 24 is connected between chassis 23 and receiver 21.When spring 24 is in normal condition, the upper surface of mandril 22 and splicing
The inner bottom surface of disk 21 is concordant.
Specific work process：
The heating temperature that the first heating component 7 is arranged is slightly below the fusion temperature of plastics, the temperature of the second heating component 8 higher than modeling
The fusion temperature of material.Raw material enters from material storing box 6 in conveying shell 3, into the raw material in conveying shell 3 in the first heating component
It heats in 7 ranges and is pushed by screw rod and is fed forward.When in the range of raw material the second heating component 8 of arrival, melting sources are simultaneously
Continue to be fed forward, be entered in molding machine 2 by transition passage 9.
The piston rod that cylinder 11 is opened and closed when last batch of before leaving offices is processed stretches out so that transition passage 9 and conveying shell
The junction of body 3 is open and close, and plate 12 is closed, and at this time control valve 16 is opened, and air supply pipe 15 conveys compressed air and enters transition passage
In 9, at this time by air pressure raw material is entered along transition passage 9 in molding machine 2.After parts-moulding in transition passage 9
Also extra raw material residual, at this time opens hand-operated valve 20 so that redundance is discharged into receiver 21 from hand-operated valve 20
It is interior.
When next day processes for the first time, close hand-operated valve 20, open and close cylinder 11 piston rod shrink so that transition passage 9 with it is defeated
Shell 3 is sent to be connected to again.It can enter in transition passage 9 after raw material is primary melting in conveying shell 3, in transitional shell
The temperature requirement for reaching injection molding during conveying by 25 continuous heating of third heating component, caused by avoiding temperature from being not achieved
Substandard products.
Embodiment two；
A kind of production technology producing high-precision injection molding part using above equipment, including：
A, dispensing：Raw material is mixed according to certain proportioning, and is stirred evenly；
B, fusion plastification：The raw material prepared is put into material storing box 6, the first heating component 7, the second heating component 8 and are passed through
It is reached after three heating components, 25 Multi-stage heating and requires temperature；
C, pressure injection：To the raw material under molten condition under certain pressure and speed, by injection device by the original of melting
In material injection mold cavity；
D, mold filling cools down：After being full of fused raw material in mold cavity, certain pressure is kept to wait for fused raw material cooling and solidifying；
E, backform pickup：It molds after complete cooling, is ejected product with mold pushing mechanism.
Assigned direction in this specific embodiment is intended merely to facilitate between each component of statement position relationship and mutually
The relationship of cooperation.This specific embodiment is only explanation of the invention, is not limitation of the present invention, art technology
Personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but as long as
It is all protected by Patent Law in scope of the presently claimed invention.
Claims (10)
1. a kind of high-precision injection molding part production equipment, including feeding equipment (1) and molding machine (2), feeding equipment (1) packet
It includes the conveying shell (3) of hollow cylinder shape, be located at conveying shell (3) inside and along the conveying of conveying shell (3) length direction
Screw rod (4) and the driving motor (5) being connected with conveying screw rod (4) one end on the outside of conveying shell (3), it is characterized in that：Institute
The one end for stating the separate driving motor (5) of conveying shell (3) is equipped with the internal transition with molding machine (2) of connection conveying shell (3)
Channel (9) is equipped with keying plate (12) able to turn on or off, the conveying shell between the transition passage (9) and conveying shell (3)
(3) and on the outside of transition passage (9) it is equipped with heating component, the downside of the transition passage (9) is equipped with discharge port (19), described
Discharge port (19) is equipped with the hand-operated valve (20) that control opens and closes discharge port (19).
2. high-precision injection molding part production equipment according to claim 1, it is characterized in that：The conveying shell (3) is close to drive
The upside of dynamic motor (5) one end is equipped with the material storing box (6) being connected with inside conveying shell (3).
3. high-precision injection molding part production equipment according to claim 2, it is characterized in that：The heating component includes that setting exists
Convey the first heating component (7), the second heating component (8) and the third being arranged on the outside of transition passage (9) on the outside of shell (3)
Heating component (25)；First heating component (7) is located at close to one end of driving motor (5), and the first heating component (7)
Heating temperature is less than the fusion temperature of plastics, and the heating temperature of the second heating component (8) and third heating component (25) is higher than moulding
The fusion temperature of material.
4. high-precision injection molding part production equipment according to claim 1, it is characterized in that：The conveying shell (3) and transition
The side of channel (9) connecting pin is equipped with mounting bracket (10), and the mounting bracket (10) is equipped with and opens and closes cylinder (11), the keying
Plate (12) is connected with the piston rod for opening and closing cylinder (11)；When the piston rod for opening and closing cylinder (11) is fully extended, plate (12) is opened and closed
It is closed conveying shell (3) and transition passage (9) junction；When open and close cylinder (11) piston rod income when, open and close plate (12) from
Open the junction of conveying shell (3) and transition passage (9).
5. high-precision injection molding part production equipment according to claim 4, it is characterized in that：The keying plate (12) is closed transition
The position that face transition passage (9) on plate (12) is opened and closed when channel (9) is equipped with venthole (13), the upside for opening and closing plate (12)
Face is equipped with the air admission hole (14) being connected with venthole (13), and air supply pipe (15), the confession are connected on the air admission hole (14)
Tracheae (15), which is equipped with, controls its control valve (16) opened and closed.
6. high-precision injection molding part production equipment according to claim 5, it is characterized in that：The side for opening and closing plate (12) is set
There are detection block (17), the mounting bracket (10) to be equipped with close to switch (18), the detection block (17) is fully extended in piston rod
When face close to switch (18)；It is opened close to control valve (16) when switch (18) response, control when being not responding to close to switch (18)
Valve (16) is closed.
7. high-precision injection molding part production equipment according to claim 6, it is characterized in that：The transition passage (9) tilts and sets
It sets and is higher-end with conveying shell (3) connecting pin.
8. high-precision injection molding part production equipment according to claim 1, it is characterized in that：It is set below the discharge port (19)
There is receiver (21).
9. high-precision injection molding part production equipment according to claim 8, it is characterized in that：The inside points of the receiver (21)
Multiple minizones are divided into, the bottom of each minizone is equipped with mandril (22), and the lower end of mandril (22) is equipped with and all mandrils
(22) connected chassis (23) is equipped with spring (24) between the chassis (23) and receiver (21)；Spring (24) is in normal
When state, the upper surface of mandril (22) is concordant with the inner bottom surface of receiver (21).
10. a kind of technique producing high-precision injection molding part using claim 1-9 any one of them production equipments, including：
A, dispensing：Raw material is mixed according to certain proportioning, and is stirred evenly；
B, fusion plastification：The raw material prepared is put into material storing box (6), the first heating component (7), the second heating component are passed through
(8) it and is reached after third heating component (25) Multi-stage heating and requires temperature；
C, pressure injection：To the raw material under molten condition under certain pressure and speed, by injection device by the original of melting
In material injection mold cavity；
D, mold filling cools down：After being full of fused raw material in mold cavity, certain pressure is kept to wait for fused raw material cooling and solidifying；
E, backform pickup：It molds after complete cooling, is ejected product with mold pushing mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810876826.2A CN108748921B (en) | 2018-08-03 | 2018-08-03 | High-precision injection molding production equipment and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810876826.2A CN108748921B (en) | 2018-08-03 | 2018-08-03 | High-precision injection molding production equipment and production process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108748921A true CN108748921A (en) | 2018-11-06 |
| CN108748921B CN108748921B (en) | 2020-07-28 |
Family
ID=63968823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810876826.2A Active CN108748921B (en) | 2018-08-03 | 2018-08-03 | High-precision injection molding production equipment and production process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108748921B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110315692A (en) * | 2019-08-13 | 2019-10-11 | 东莞市艾尔玛科技有限公司 | Injection molding machine is used in a kind of molding of product casing |
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| CN1555972A (en) * | 2003-12-30 | 2004-12-22 | 刘津平 | Polymer material extrusion injection shaping method and its device |
| WO2008019922A1 (en) * | 2006-08-16 | 2008-02-21 | Kraussmaffei Technologies Gmbh | Device and method for processing thermosetting plastics |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110315692A (en) * | 2019-08-13 | 2019-10-11 | 东莞市艾尔玛科技有限公司 | Injection molding machine is used in a kind of molding of product casing |
| CN110315692B (en) * | 2019-08-13 | 2021-06-01 | 东莞市艾尔玛科技有限公司 | Injection molding machine for molding product shell |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108748921B (en) | 2020-07-28 |
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