CN206582196U - A kind of differential cylinder and injection machine comprising the differential cylinder penetrate platform - Google Patents
A kind of differential cylinder and injection machine comprising the differential cylinder penetrate platform Download PDFInfo
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- CN206582196U CN206582196U CN201720078139.7U CN201720078139U CN206582196U CN 206582196 U CN206582196 U CN 206582196U CN 201720078139 U CN201720078139 U CN 201720078139U CN 206582196 U CN206582196 U CN 206582196U
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Abstract
A kind of injection machine the utility model discloses differential cylinder and comprising the differential cylinder penetrates platform, belongs to field of plastic machinery.The differential cylinder is fixed on injection machine and penetrated on the foreboard of platform, and First piston bar connects the extrusion screw rod of injection machine by back plate.When injecting glue, the movement of piston front cover is promoted from the first oil inlet oil-feed of bonnet, and then drive extrusion screw rod to note sizing material into mould.The First piston bar is hollow structure, and internal cavities are divided into two sections, wherein, first paragraph cavity supports the second piston bar of protecgulum when being provided with work, second segment cavity is as oil-feed duct, and the end for stretching out cylinder body in First piston bar forms the second oil inlet.When taking out glue, the second oil inlet oil-feed promotes second piston bar, and producing reaction force makes First piston bar take out glue action to opposite direction movement completion, and the active area of second piston bar is small so that the translational speed of First piston bar is fast, and the glue time is taken out in shortening；Hollow structure volume is small, reduces hydraulic pressure oil consumption, is conducive to energy-conservation.
Description
Technical field
The utility model is related to field of plastic machinery, and in particular to a kind of differential cylinder and the injection comprising the differential cylinder
Machine penetrates platform.
Background technology
Injection machine also known as injection (mo(u)lding) machine or injector, it is that thermoplastic or thermosetting plastics are utilized into plastic shaping
The main former of variously-shaped plastic products is made in mould.Wherein, can be defined in a circulation of injection machine
After a number of plastic heating is plastified in time, under certain pressure and speed, molten plastic is injected by screw rod
In mold cavity.
Patent document such as the A of CN 104416841 discloses a kind of novel injection cylinder apparatus of injection machine, including injection
Head plate, injecting piston rod, injection ram end cap, injection seat, injection ram, injection cylinder body, injection pull bar, injection cylinder bottom,
Injection cylinder pull bar, injection cylinder lid, storing cylinder body；It is characterized in that：Storing cylinder body is fixed with injection head plate hole, injection cylinder lid
It is fixed on one end of injection cylinder body and injection seat is fixed on by more than one piece injection cylinder pull bar, the other end is fixed on injection cylinder
Bottom, injection head plate and injection cylinder bottom are individually fixed in four injection pull bar two ends, injection ram be limited in injection cylinder lid with
Moved between injection cylinder bottom, injection ram other end fixation injecting piston rod is fixed in injection ram end cap one end, wherein injecting
Piston rod, injection ram end cap, injection ram, injection cylinder body are on the same axis.
Differential cylinder structure mainly is used in injection machine in the market, its function is to ensure that glue accurately and smoothly
Material input mould.Differential injection cylinder structure mainly includes the protecgulum provided with preceding hydraulic fluid port, the bonnet provided with rear hydraulic fluid port, positioned at protecgulum
Cylinder tube, piston rod between bonnet, the piston by piston unt in the middle part of piston rod, protecgulum, bonnet, cylinder tube
Three constitutes oil cylinder body and oil cylinder body interior is provided with barrel chamber, and piston rod two ends are stretched out in protecgulum and bonnet and piston rod respectively
Portion is located in barrel chamber, and piston also is located in barrel chamber and barrel chamber is divided into preceding barrel chamber and rear barrel chamber, and preceding hydraulic fluid port is connected with preceding barrel chamber, after
Hydraulic fluid port is connected with rear barrel chamber, in differential injection, and the active area S1 that placket intracavitary is used to inject is more than in rear barrel chamber for noting
The active area S2 penetrated, injection ram timing belt piston bar barrel chamber direction motion backward in the presence of differential force.
There is problem in current injection machine oil cylinder mechanism：, it is necessary to overcome cavity pressure and all streams when injection machine injects sizing material
Road resistance, so the diameter of cylinder barrel can be than larger, and needs active force relative to injection power very little, if another from cylinder barrel when taking out glue
One end oil-feed, cylinder barrel is relatively large in diameter, and can consume many hydraulic oil, is unfavorable for energy-conservation, causes to waste.
Utility model content
In view of the shortcomings of the prior art, the utility model provides a kind of differential cylinder, improves piston rod construction, reduces
Active area during glue is taken out, reaction faster, while reducing the use of hydraulic oil, is conducive to energy-conservation when making to take out glue action.
A kind of piston in differential cylinder, including cylinder body, cylinder body, located at the protecgulum and bonnet at cylinder body two ends and one end with
Piston connect, the other end through bonnet stretch out cylinder body First piston bar, it is described after cover provided with the first oil inlet, enter from first
Hydraulic fluid port oil-feed can promote piston front cover to move, and the First piston bar is hollow structure, and internal cavities are divided into two sections, its
In, first paragraph cavity supports the second piston bar of protecgulum when being provided with work, second segment cavity is lived as oil-feed duct first
The end that stopper rod stretches out cylinder body forms the second oil inlet.
Differential cylinder of the present utility model is applied in injection machine, and the part that First piston bar stretches out cylinder body passes through connecting plate
It is connected with the extrusion screw rod of injection machine, promotes piston front cover to move when hydraulic oil enters in cylinder body from the first oil inlet of bonnet
Dynamic, now equidirectional movement also occurs for extrusion screw rod, completes injection action.
When taking out glue action, the second oil inlet oil-feed promotes second piston bar to support protecgulum, and the second oil inlet continues oil-feed,
Producing reaction force makes First piston bar be slided to bonnet direction, drives the extrusion screw rod movement of injection machine, and glue action is taken out in completion,
The hydraulic oil in cylinder body is discharged from drain tap simultaneously.
Side of the drain tap located at bonnet with respect to the first oil inlet, during installation, draining mouth down.
It is small due to taking out the resistance that needs overcome during glue, therefore the utility model installs freely slidable in First piston bar
Second piston bar, the active area of second piston bar is less than the active area of the piston.According to V=Q/S, hydraulic fluid flow rate
Q is quantitative, and when active area S reduces, speed V will increase, and glue speed is taken out so as to increase, and reacts sensitiveer, glue is taken out in shortening
Time；Hollow structure volume is much smaller than the cylinder body volume in First piston bar, reduces the consumption of hydraulic oil, more energy efficient.
Preferably, having limited step between the first paragraph cavity and second segment cavity.The first paragraph cavity
Diameter is more than second segment cavity, and two ends junction forms limited step, and one end of second piston bar is spacing at limited step, keeps away
Exempt from second piston bar to skid off from the second oil inlet.
Prevent second piston bar from being skidded off from piston end, preferably, the length of the second piston bar is not less than cylinder body
Length.
Preferably, the surface that the piston is contacted with cylinder body is provided with wear ring and sealing ring.The piston is along cylinder body
Inwall is slidably reciprocated, and to reduce the abrasion to piston and avoiding occurring oil leak, wear ring and sealing are installed in the contact surface of piston
Circle.
The piston is connected with First piston bar by screw thread.
The bonnet is provided with several annular grooves with the inwall that First piston bar coordinates, and is sequentially installed with from outside to inside
Dust ring, sealing ring and wear-resisting ring.
Preferably, the end of the First piston bar connection piston is provided with the copper sheathing coordinated with second piston bar.Institute
State the surface that the second piston bar other end contacts with First piston bar and wear ring and sealing ring are installed.
The utility model additionally provides a kind of injection machine comprising the differential cylinder and penetrates platform, including front and rear panels, institute
Mounting hole of the foreboard provided with the fixed differential cylinder is stated, First piston bar connects the extrusion screw rod of injection machine by back plate,
The foreboard is provided with the pilot hole coordinated with the extrusion screw rod.
The differential cylinder is fixed on foreboard, and the slip of First piston bar drives the motion of extrusion screw rod, and then completes
Injection is acted with glue is taken out.
Preferably, the protecgulum and bonnet are fixed on the two ends of mounting hole.Because injection machine injecting glue needs larger work
Firmly, the whole cylinder body of differential cylinder is fixed on foreboard by the utility model, is conducive to force direction to be consistent.
Preferably, the part that the First piston bar stretches out cylinder body is provided with and back plate cooperation spacing ring, the spacing ring
It is set in First piston bar, between the two with limited step.
Cause generation between spacing ring and First piston bar relative because active force is excessive when limited step can prevent from taking out glue
Displacement.
One end that the First piston bar stretches out cylinder body is coordinated by screw thread and locking nut, and the back plate is fixed on spacing
Between ring and locking nut.Specifically, having the through hole passed through for First piston bar, during assembling, first piston in the back plate
Bar passes through through hole, then is tightened by locking nut.
The beneficial effect that the utility model possesses：
(1) diameter of cylinder of the utility model differential cylinder is big, when pressure is quantitative, and hydraulic oil effect piston produces larger
Active force, so as to increase injection molding machine injection power, makes sizing material smoothly enter core moulding product.
(2) the utility model sets hollow structure in First piston bar, and second piston bar is installed in hollow structure, leads to
Cross hollow structure oil-feed and promote second piston bar, producing reaction force makes First piston bar movement completion take out glue action, in hydraulic pressure
When oily flow is quantitative, the active area of second piston bar is small so that the translational speed of First piston bar is fast, and response speed is accelerated,
The glue time is taken out in shortening；Hollow structure volume is small, reduces hydraulic pressure oil consumption, is conducive to energy-conservation.
Brief description of the drawings
Fig. 1 is the schematic diagram that the utility model injection machine penetrates platform.
Fig. 2 be Fig. 1 in A-A to sectional view.
Fig. 3 is the structural representation of differential cylinder in Fig. 1.
Embodiment
With reference to embodiment and accompanying drawing, the utility model is described in further detail, but following embodiments are only this practicality
New preferred embodiment, and it is not all.Based on the embodiment in embodiment, those skilled in the art are not making creation
Property work on the premise of obtain other embodiments, belong to protection domain of the present utility model.
As illustrated in fig. 1 and 2, injection machine of the present utility model penetrates platform, including foreboard 1 and back plate (not indicated in figure), foreboard 1
Mounting hole 3 provided with fixed differential cylinder 2 and the pilot hole 4 with the cooperation of injection machine extrusion screw rod.
As shown in figure 3, differential cylinder 2 include cylinder body 21, the piston 22 in cylinder body, the protecgulum 23 located at cylinder body two ends and after
Lid 24 and one end are connected with piston, and the other end stretches out the First piston bar 25 of cylinder body through bonnet.Protecgulum 23 and bonnet 24 are solid
The two ends of mounting hole are scheduled on, whole cylinder body is fixed on foreboard, is conducive to force direction to be consistent.
Piston 22 is connected with the one end of First piston bar 25 by screw thread.The surface that piston 22 is contacted with cylinder body is provided with
Wear ring 221 and sealing ring 222, reduce piston and are worn and torn caused by slidably reciprocating and avoid occurring oil leak.
Bonnet 24 is provided with several annular grooves with the inwall that First piston bar coordinates, and is sequentially installed with from outside to inside anti-
Konisphere 5, sealing ring 6 and wear-resisting ring 7.
Injection machine extrusion screw rod of the present utility model and First piston bar are all fixedly connected in back plate, First piston bar
The movement of injection machine extrusion screw rod can be driven by moving back and forth, so as to realize injection and take out glue action.
Specifically, the part of the stretching of First piston bar 25 cylinder body is provided with coordinates spacing ring 26 with back plate, and spacing ring 26 is arranged
In First piston bar, between the two with limited step.Cause limit when limited step can prevent from taking out glue because active force is excessive
Occurs relative displacement between position ring and First piston bar.
One end that First piston bar stretches out cylinder body is coordinated by screw thread with locking nut 8, and back plate is fixed on the He of spacing ring 26
Between locking nut 8.During assembling, First piston bar 25 passes through the through hole of back plate, then is tightened by locking nut 8.
Bonnet 24 is provided with the first oil inlet 241, from the first oil inlet oil-feed piston front cover can be promoted to move, bonnet
Side with respect to the first oil inlet is provided with drain tap 242, when piston is moved to bonnet, and hydraulic oil is discharged from drain tap, installs
When, draining mouth down.
First piston bar 25 is hollow structure, and internal cavities are divided into two sections, wherein, first paragraph cavity is supported when being provided with work
The second piston bar 27 of protecgulum 23 is pushed up, the length of second piston bar 27 is not less than the length of cylinder body.
Second segment cavity is as oil-feed duct, and the end for stretching out cylinder body in First piston bar forms the second oil inlet 251.The
The oil-feed of two oil inlet 251, promotes second piston bar to support protecgulum, and producing reaction force makes First piston bar 25 be slided to bonnet direction
It is dynamic.
Wherein the diameter of first paragraph cavity is more than second segment cavity, and two ends junction forms limited step, second piston bar
One end it is spacing at limited step, it is to avoid second piston bar is skidded off from the second oil inlet.
The end of the connection piston of First piston bar 25 is provided with the copper sheathing 9 coordinated with second piston bar 27.Second piston bar
The surface of the other end is provided with wear ring and sealing ring.
Operation principle of the present utility model：When injection machine injects sizing material, the oil-feed of the first oil inlet 241 promotes piston front cover
Mobile, First piston bar drives extrusion screw rod, and front cover direction is moved together, and the sizing material in packing element is injected mould by extrusion screw rod
In, complete injection action.Because injecting glue needs to overcome cavity pressure and all flow passage resistance force of waterproof, so piston 22 is relatively large in diameter,
By increasing action area, to increase injection power.
When taking out glue, the oil-feed of the second oil inlet 251 promotes second piston bar to support protecgulum, continues oil-feed and produces reaction force
First piston bar is slided to bonnet direction, drive the extrusion screw rod movement of injection machine, glue action is taken out in completion, while in cylinder body
Hydraulic oil is discharged from drain tap.Small due to taking out the resistance that needs overcome during glue, the active area of second piston bar is less than the work
The active area of plug.According to V=Q/S, hydraulic fluid flow rate Q is quantitative, and when active area S reduces, speed V will increase, so that
Glue speed is taken out in increase, is reacted sensitiveer, is shortened the time for taking out glue；Hollow structure volume is much smaller than the cylinder in First piston bar
Body volume, reduces the consumption of hydraulic oil, more energy efficient.
Claims (8)
1. piston in a kind of differential cylinder, including cylinder body, cylinder body, located at the protecgulum and bonnet at cylinder body two ends and one end and work
Plug connection, the other end through bonnet stretch out cylinder body First piston bar, it is described after cover provided with the first oil inlet, from the first oil-feed
Mouth oil-feed can promote piston front cover to move, it is characterised in that the First piston bar is hollow structure, and internal cavities are divided into
Two sections, wherein, first paragraph cavity supports the second piston bar of protecgulum when being provided with work, second segment cavity as oil-feed duct,
The end for stretching out cylinder body in First piston bar forms the second oil inlet.
2. differential cylinder as claimed in claim 1, it is characterised in that have between the first paragraph cavity and second segment cavity
Limited step.
3. differential cylinder as claimed in claim 1, it is characterised in that the length of the second piston bar is not less than the length of cylinder body
Degree.
4. differential cylinder as claimed in claim 1, it is characterised in that the surface that the piston is contacted with cylinder body is provided with wear-resisting
Ring and sealing ring.
5. differential cylinder as claimed in claim 1, it is characterised in that the end of the First piston bar connection piston is provided with
The copper sheathing coordinated with second piston bar.
6. a kind of penetrate platform, including front and rear panels comprising the injection machine of differential cylinder as described in claim 1-5 is any, it is described before
Mounting hole of the plate provided with the fixed differential cylinder, First piston bar connects the extrusion screw rod of injection machine by back plate, described
Foreboard is provided with the pilot hole coordinated with the extrusion screw rod.
7. injection machine as claimed in claim 6 penetrates platform, it is characterised in that the protecgulum and bonnet are fixed on the two of mounting hole
End.
8. injection machine as claimed in claim 6 penetrates platform, it is characterised in that the part that the First piston bar stretches out cylinder body is provided with
Coordinate spacing ring with back plate, the spacing ring is set in First piston bar, between the two with limited step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720078139.7U CN206582196U (en) | 2017-01-20 | 2017-01-20 | A kind of differential cylinder and injection machine comprising the differential cylinder penetrate platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720078139.7U CN206582196U (en) | 2017-01-20 | 2017-01-20 | A kind of differential cylinder and injection machine comprising the differential cylinder penetrate platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206582196U true CN206582196U (en) | 2017-10-24 |
Family
ID=60110266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720078139.7U Active CN206582196U (en) | 2017-01-20 | 2017-01-20 | A kind of differential cylinder and injection machine comprising the differential cylinder penetrate platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206582196U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667807A (en) * | 2019-01-25 | 2019-04-23 | 广东金迪威智能装备有限公司 | A kind of injection molding machine penetrates platform drive cylinder |
| CN110193909A (en) * | 2019-06-19 | 2019-09-03 | 宁波伊菲特科技有限公司 | A kind of injection molding machine |
| CN110228171A (en) * | 2018-03-06 | 2019-09-13 | 苏州立注机械有限公司 | The injection mechanism of injection machine of quick response |
| CN111894942A (en) * | 2020-08-11 | 2020-11-06 | 广州楚河工业设计合伙企业(有限合伙) | Oil cylinder with integrally cast double cylinder sleeves |
-
2017
- 2017-01-20 CN CN201720078139.7U patent/CN206582196U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110228171A (en) * | 2018-03-06 | 2019-09-13 | 苏州立注机械有限公司 | The injection mechanism of injection machine of quick response |
| CN109667807A (en) * | 2019-01-25 | 2019-04-23 | 广东金迪威智能装备有限公司 | A kind of injection molding machine penetrates platform drive cylinder |
| CN110193909A (en) * | 2019-06-19 | 2019-09-03 | 宁波伊菲特科技有限公司 | A kind of injection molding machine |
| CN111894942A (en) * | 2020-08-11 | 2020-11-06 | 广州楚河工业设计合伙企业(有限合伙) | Oil cylinder with integrally cast double cylinder sleeves |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190613 Address after: 313100 No. 2587 Taihu Street Development Avenue, Changxing County, Huzhou City, Zhejiang Province Patentee after: Demark (Changxin) injection molding system Co., Ltd. Address before: 313100 No. 188 Baixi Avenue, Taihu Street, Changxing County, Huzhou City, Zhejiang Province Patentee before: Demark (Changxin) Packaging Machinery Co., Ltd. |