CN105522691A - Motor-driven thread disengaging mechanism for injection molding - Google Patents
Motor-driven thread disengaging mechanism for injection molding Download PDFInfo
- Publication number
- CN105522691A CN105522691A CN201510913949.5A CN201510913949A CN105522691A CN 105522691 A CN105522691 A CN 105522691A CN 201510913949 A CN201510913949 A CN 201510913949A CN 105522691 A CN105522691 A CN 105522691A
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- China
- Prior art keywords
- transmission shaft
- thread
- power transmission
- push pedal
- mould
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Classifications
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- 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
- B29C45/26—Moulds
- B29C45/2618—Moulds having screw-threaded mould walls
- B29C45/262—Moulds having screw-threaded mould walls provided with unscrewing drive means
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a motor-driven thread disengaging mechanism for injection molding. The motor-driven thread disengaging mechanism is characterized in that the motor-driven thread disengaging mechanism comprises a stationary mould, a push plate and a mould base that are arranged from the top down; after grooves in the stationary mould are butted with fractal surfaces on the push plate, a feeding cavity and mould cavities are formed, and the feeding cavity is communicated with the mould cavities; the push plate is connected with the mould base below the push plate through a spring; the motor-driven thread disengaging mechanism further comprises thread mould cores and a transmission shaft that are arranged in the mould base; the upper ends of the thread mould cores penetrate through the push plate and stretch into the mould cavities; a transmission mechanism is arranged between the transmission shaft and the thread mould cores; the transmission shaft can rotate to drive the thread mould cores to rotate; and a rotating mechanism driving the transmission shaft to rotate and a motor driving the rotating mechanism are arranged on the mould base. The motor-driven thread disengaging mechanism has the technical effects of short consumed time and high working efficiency.
Description
Technical field
The invention belongs to injection molding technology field.
Background technology
Injection mold is a kind of instrument producing plasthetics, is also the instrument giving plasthetics complete structure and accurate dimension.Its occupation mode injects in the die cavity of injection mold by the material high pressure melted that is heated, and after cooling curing, obtains formed products.When existing moulding needs to manufacture screw, need to put into thread core in injection mold, after completing injection moulding, threaded moulding is deviate from.
But because threaded moulding and thread core are in the state of threaded engagement, so moulding will be deviate from need first to be exited along its screw thread rotation from die cavity by thread core after die sinking, the mode of current thread core Leave out thread mainly adopts and manually turns thread core, thread core is exited from the threaded portion of moulding, the mode of this Leave out thread is consuming time longer, inefficiency, also consumes a large amount of manpower.
Summary of the invention
The invention is intended to provide a kind of is power source with motor, and short, that operating efficiency is high injection moulding motor consuming time drives Leave out thread mechanism.
Injection moulding in this programme motor drives Leave out thread mechanism, comprise arrange from top to bottom quiet mould, push pedal and die holder, define the feed cavity and die cavity that are communicated with after groove on described quiet mould is involutory with the fractal area of described push pedal, this push pedal is connected with the die holder below it by spring; Also comprise and be located at power transmission shaft in die holder and thread core, the upper end of thread core is run through push pedal and is stretched in described die cavity; Be provided with transmission mechanism between described power transmission shaft and thread core, the rotation of this power transmission shaft can drive described thread core to rotate; Described die holder is provided with the rotating mechanism driving power transmission shaft to rotate, and drives the motor of this rotating mechanism.
Operation principle and beneficial effect: after die sinking, motor starts to drive rotating mechanism to rotate, and then drive drive rod and thread core to rotate in the screw of moulding, simultaneously, under the action of the spring, push pedal is subject to the thrust away from die holder, and then is relayed on moulding, so just make moulding deviate from thread core, realize the Leave out thread of moulding.The present invention uses motor for power source, without the need to manually turning thread core, improves operating efficiency while saving manpower.
Further, in mould, the quantity of die cavity is in two or more, the thread core simultaneously with establish described chamber quantity of moulding equal and coordinate one by one.So just can once just can realize the injection moulding of multiple part and move back screw thread, improve production efficiency.
Further, the front end of described power transmission shaft is provided with screw thread and runs through push pedal and enters described feed cavity, and when die sinking, the clout in feed cavity forms useless overlap part, this part can under the drive stretching into part drive link wherein when die sinking, easierly exits quiet mould.
Further, two cover die cavity and thread cores are provided with in described mould, their symmetries be arranged on power transmission shaft about, hand of spiral on described power transmission shaft is contrary with hand of spiral on thread core, described transmission mechanism comprises the active spur gear be fixedly connected in the middle part of power transmission shaft and the driven spur gear be fixedly connected on thread core, this active spur gear engages with driven spur gear, when screw thread sprue puller rotates, due to the transmission of gear, thread core can be synchronous rotate in the opposite direction, so the hand of spiral on power transmission shaft must be contrary with hand of spiral on thread core.Gear transmission structure is simple, makes synchronous rotary be easy to realize.
Further, described rotating mechanism comprises and being horizontally installed on die holder and the horizontal power transmission shaft affixed with motor, on this horizontal power transmission shaft, key is connected with drive bevel gear, described power transmission shaft lower end spline fitted has driven wheel of differential, drive bevel gear engages with driven wheel of differential, electric machine rotation makes power transmission shaft rotate, and the rotation of drive bevel gear makes driven wheel of differential rotate, thus thread core is rotated.
Further, be provided with stop screw between described push pedal and die holder, the threaded portion of this stop screw coordinates with the screw on die holder, and the smooth department of stop screw is positioned at the counterbore of push pedal, when push pedal is moved relative to die holder, stop screw can limit the displacement of push pedal.
Further, push pedal is provided with stretches into die cavity and the annular protrusion entangling thread core, and protruding lateral surface is provided with spline and turns decorative pattern, is specially straight knurling.Spline decorative pattern plays the effect preventing moulding from rotating with thread core, further ensures thread core and exits plastic smoothly, it also avoid the relative motion between contingent overlap and moulding, reaches the object preventing overlap from pulling bad moulding.
Further, described annular protrusion is detachably connected in push pedal.The design of such separate type makes the replacing after the production of bossing and wearing and tearing more convenient, has saved manpower and materials.
Accompanying drawing explanation
Fig. 1 is the structural representation that embodiment of the present invention injection moulding motor drives the installation of Leave out thread mechanism.
Detailed description of the invention
Below by detailed description of the invention, the present invention is further detailed explanation:
Reference numeral in Figure of description comprises: quiet mould 1, feed cavity 11, die cavity 12, push pedal 2, T-shaped insert 21, stop screw 3, die holder 4, thread core 5, driven spur gear 51, power transmission shaft 6, initiatively spur gear 61, driven helical gear 7, horizontal power transmission shaft 8, active oblique gear 9, motor 10, spring 11.
Embodiment injection moulding motor 10 drives Leave out thread mechanism to install substantially as shown in Figure 1:
Injection moulding motor 10 drives Leave out thread mechanism, comprises quiet mould 1, push pedal 2, die holder 4 from top to down successively; Quiet mould 1 is provided with three grooves, push pedal 2 has two counterbores, in each counterbore, dismountable interference fit has a T-shaped insert 21, its end face and bottom surface is non-does not flush with the end face of push pedal 2 and bottom surface, T-shaped insert 21 end face there is annular projection, lug boss is higher than the end face of push pedal 2, and the lateral surface of lug boss is provided with straight knurling, insert has the through hole through annular projection; On quiet mould 1 two grooves in left and right with the groove of centre for benchmark is symmetrical and be combined to form two die cavities 12 respectively with two T-shaped inserts 21, middle groove and push pedal 2 end face are combined to form feed cavity 11, feed cavity 11 is communicated with respectively with two die cavities 12, and position relative with feed cavity 11 in push pedal 2 also has through hole.
The bottom surface of push pedal 2 and T-shaped insert 21 contacts with the end face of die holder 4, and this die holder 4 bottom welding has left support abutment and right support abutment, and in the installing hole on right support abutment, interference fit has rolling bearing; Horizontally disposed between left support abutment and right support abutment have horizontal power transmission shaft 86, and the axle body of power transmission shaft 6 and right rolling bearing inner ring interference fit, the right-hand member of power transmission shaft 6 is fixedly connected with by axle sleeve with the rotor on motor 10.
This power transmission shaft 6 is connected with drive bevel gear by flat key, and this drive bevel gear engages with the driven wheel of differential vertically arranged, the axis hole of this driven wheel of differential is splined hole.The bottom of power transmission shaft 6 is connected to the bottom of die holder 4 by bearing, one section of being in die holder 4 between the bearing of left and right coordinates with the splined hole of driven wheel of differential for spline segment, more than spline segment run through die holder 4 and push pedal 2 is stretched in feed cavity 11, a section of stretching in die cavity 12 is thread segment.Gear cavity is had in die holder 4, power transmission shaft 6 is on a section in gear cavity and is connected with initiatively horizontal gear, in this gear cavity, be respectively engaged with a driven horizontal gear about active horizontal gear, driven horizontal gear is also fixedly connected on the hypomere of two thread cores 5 simultaneously separately; Initiatively horizontal gear and driven horizontal gear are all on a horizontal plane.Bottom surface, gear cavity left and right respectively has a mounting groove, in two mounting grooves, each interference fit has a rolling bearing, the bottom of two thread cores 5 separately with the inner ring interference fit of these two rolling bearings, two thread cores 5 pass die holder 4 and stretch in die cavity 12 by the through hole of each self-corresponding T-shaped insert 21, its section of being in die cavity 12 is thread segment, and the rotation direction of this thread segment is contrary with the rotation direction of thread segment on power transmission shaft 6.
The bottom of push pedal 2 is fixedly connected with die holder 4 end face by stop screw 3, and the threaded portion of this stop screw 3 is inserted in the screw of die holder 4.Push pedal 2 is separately shaped with counterbore, and smooth department and the counterbore of stop screw 3 are slidably matched, and the head of a nail of this stop screw 3 is positioned at the step of counterbore.Also be provided with spring 11 between push pedal 2 and die holder 4, spring 11 is placed in spring 11 groove on die holder 4, and its two ends are fixedly connected with the bottom surface of spring 11 groove with the bottom surface of push pedal 2 respectively, and push pedal 2 bottom surface is pressed in spring 11 bottom surface of spring 11 groove.
The operation principle of the present embodiment is: during matched moulds, and quiet mould 1 is combined to form feed cavity 11 and die cavity 12 with push pedal 2, and drive link is in feed cavity 11, and thread core 5 is positioned at this die cavity 12.After completing injection moulding, actuating unit band push pedal 2 and die holder 4 and motor 10 are away from quiet mould 1, the top of moulding is exposed, overlap also leaves quiet mould 1 under the drive of drive link, due to position spring 11 between push pedal 2 and die holder 4, spring 11 is applied to push pedal 2 one power upwards, push pedal 2 drives mold insert to be applied to the outside power of moulding one, now motor 10 is opened, make driven wheel of differential by drive bevel gear and connect the drive link rotation on it, thus drive link drives thread core 5 to rotate in the other direction by transmission spur gear, push pedal 2 under the effect of spring 11 along with moulding moves, the end of thread of thread core 5 and drive link releases moulding completely.Fingerprint annular knurl prevents moulding from rotating with thread core 5, further ensures thread core 5 and exits die casting smoothly, it also avoid the relative motion between contingent overlap and moulding, reach the object preventing overlap from pulling bad moulding.Stop screw 3 can carry out spacing to the displacement of push pedal 2.
Claims (8)
1. injection moulding motor drives Leave out thread mechanism, it is characterized in that, comprise arrange from top to bottom quiet mould, push pedal and die holder, define the feed cavity and die cavity that are communicated with after the groove on described quiet mould is involutory with the fractal area of described push pedal, this push pedal is connected with the die holder below it by spring; Also comprise and be located at power transmission shaft in die holder and thread core, the upper end of thread core is run through push pedal and is stretched in described die cavity; Be provided with transmission mechanism between described power transmission shaft and thread core, the rotation of this power transmission shaft can drive described thread core to rotate; Described die holder is provided with the rotating mechanism driving power transmission shaft to rotate, and drives the motor of this rotating mechanism.
2. injection moulding motor according to claim 1 drives Leave out thread mechanism, it is characterized in that: the quantity of described die cavity, in two or more, is equipped with described thread core in each die cavity.
3. injection moulding motor according to claim 2 drives Leave out thread mechanism, it is characterized in that: the front end of described power transmission shaft is provided with screw thread and runs through institute's push pedal and enters described feed cavity.
4. injection moulding motor according to claim 3 drives Leave out thread mechanism, it is characterized in that: be provided with the die cavity described in two covers and thread core, their symmetries be arranged on described power transmission shaft about, hand of spiral on described power transmission shaft is contrary with hand of spiral on described thread core, described transmission mechanism comprises the active spur gear be fixedly connected on power transmission shaft and the driven spur gear be fixedly connected on described thread core, and this active spur gear engages eventually with driven spur gear.
5. injection moulding motor according to claim 4 drives Leave out thread mechanism, it is characterized in that: described rotating mechanism comprises and being horizontally installed on die holder and the horizontal power transmission shaft affixed with motor, on this horizontal power transmission shaft, key is connected with drive bevel gear, described horizontal power transmission shaft lower end spline fitted has driven wheel of differential, and drive bevel gear engages with driven wheel of differential.
6. injection moulding motor according to claim 5 drives Leave out thread mechanism, it is characterized in that: be provided with stop screw between described push pedal and die holder.
7. injection moulding motor according to claim 6 drives Leave out thread mechanism, it is characterized in that: described push pedal is provided with stretches into die cavity and the annular protrusion entangling described thread core, and the lateral surface of this annular protrusion is provided with spline decorative pattern.
8. injection moulding motor according to claim 7 drives Leave out thread mechanism, it is characterized in that: described annular protrusion is detachably connected in described push pedal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510913949.5A CN105522691A (en) | 2015-12-12 | 2015-12-12 | Motor-driven thread disengaging mechanism for injection molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510913949.5A CN105522691A (en) | 2015-12-12 | 2015-12-12 | Motor-driven thread disengaging mechanism for injection molding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105522691A true CN105522691A (en) | 2016-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510913949.5A Pending CN105522691A (en) | 2015-12-12 | 2015-12-12 | Motor-driven thread disengaging mechanism for injection molding |
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| Country | Link |
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| CN (1) | CN105522691A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107415173A (en) * | 2017-08-18 | 2017-12-01 | 平潭诚信智创科技有限公司 | A kind of easy-to-dismount injection mold with interior overhead structure |
| CN108746627A (en) * | 2018-05-25 | 2018-11-06 | 合肥汇智新材料科技有限公司 | One kind is metal powder injection molded to use shaping dies |
| CN114102805A (en) * | 2021-12-15 | 2022-03-01 | 安徽华林磁电科技有限公司 | Forming and pressing device for magnetic core production |
-
2015
- 2015-12-12 CN CN201510913949.5A patent/CN105522691A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107415173A (en) * | 2017-08-18 | 2017-12-01 | 平潭诚信智创科技有限公司 | A kind of easy-to-dismount injection mold with interior overhead structure |
| CN107415173B (en) * | 2017-08-18 | 2019-06-14 | 佛山博莱瑞汽车部件有限公司 | A kind of easy-to-dismount injection mold with interior overhead structure |
| CN108746627A (en) * | 2018-05-25 | 2018-11-06 | 合肥汇智新材料科技有限公司 | One kind is metal powder injection molded to use shaping dies |
| CN114102805A (en) * | 2021-12-15 | 2022-03-01 | 安徽华林磁电科技有限公司 | Forming and pressing device for magnetic core production |
| CN114102805B (en) * | 2021-12-15 | 2023-11-07 | 安徽华林磁电科技有限公司 | Forming and pressing device for magnetic core production |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160427 |