CN201279883Y - Sag adjustment apparatus for turntable mechanism of plastic jetting-moulding machine - Google Patents
Sag adjustment apparatus for turntable mechanism of plastic jetting-moulding machine Download PDFInfo
- Publication number
- CN201279883Y CN201279883Y CNU2008201203164U CN200820120316U CN201279883Y CN 201279883 Y CN201279883 Y CN 201279883Y CN U2008201203164 U CNU2008201203164 U CN U2008201203164U CN 200820120316 U CN200820120316 U CN 200820120316U CN 201279883 Y CN201279883 Y CN 201279883Y
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- China
- Prior art keywords
- piston body
- rotating disk
- face
- moulding machine
- concave part
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- Expired - Lifetime
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- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model provides a device for adjusting the deflection of the rotating disc mechanism of an injection molding machine. The device comprises a movable lathing wall and a rotating disc used for mounting molds, wherein, the rotating shaft of the rotating disc is mounted on the movable lathing wall through bearings or bushings; a piston body is arranged in a piston cylinder liner in the movable lathing wall; an oil-seal part is arranged between the side wall of the piston body and the cylinder liner; the back end surface of the piston body is communicated with a high-pressure oil groove; a friction surface and a concave part which push the rotating disc is arranged on the front end surface of the piston body; and the concave part is communicated with the high-pressure oil groove behind the piston body.
Description
Technical field
The utility model relates to a kind of deflection adjusting device of injection moulding machine.
Background technology
The rotating disk of two (many) looks injection machine and the deadweight of mould are very big, when large-scale machine works, seem obviously special, under the effect of gravity, center line is deflected down, like this, the die joint of mould left side will form a dislocation with the two parts on right side, for the injection mold of large-scale precision, be easy to the guide pillar that bites, reduce the life-span of mould.
Present general rotating disk guiding mechanism has following a few class:
1. clip type mechanism, this mechanism offers groove on rotating disk, several jaws are set, and jaw unclamps before dial rotation, allows dial rotation, again rotating disk is firmly grasped again after rotation is finished, so sagging-rising-sagging the circulation of the position of center line of rotating disk experience.The shortcoming of this mechanism is that it does not solve the sagging problem of rotating disk, just before matched moulds, rotating disk is firmly grasped again, allow mould than matched moulds more smoothly, this mechanism shortcoming is loaded down with trivial details and inconvenient, and rotating disk still can be sagging when rotating and can form wearing and tearing when rotating.
2. needle bearing formula, as shown in Figure 1, this mechanism is provided with one to several needle bearings 2` below rotating disk 1`, 1` pads up rotating disk, overcomes the deadweight of rotating disk mould 3` with this, but this also has fatal shortcoming, rotating disk 1` is because also can be somewhat sagging when focusing on by bearing gasket, form an inclination angle [theta], in the time of mould 3` matched moulds, the component P of huge mold clamping force in the vertical direction
1Can crush bearing, this not only influences the stable of injection machine, has also brought inconvenience to maintenance.
3. strengthen the gap mode, when avoiding rotating disk sagging by adding gap between traffic cycle 1` and the moveable cart wall and moveable cart wall " friction " arrive (as Fig. 2).The sagging of rotating disk mould 3` center do not minded in this design, only require when rotating disk 1` is sagging and do not collide with the moveable cart wall, but the auxiliary locator that keeps this gap is a rigidity is main, when the mould matched moulds, huge mold clamping force can make the gap turn narrow between rotating disk and the moveable cart wall, the auxiliary locator of extruding rigidity, and the time one is long, the design of this location is with ineffective, and what face then will be continuous maintenance.
Summary of the invention
The deflection adjusting device that the utility model will solve existing injection moulding machine causes easily that the mould die joint misplace, big, the slow-footed shortcoming of friction when not being durable, keeping in repair complexity, dial rotation, provides the center line sag of chain of a kind of rotating disk and mould little, durable, deflection adjusting device little, fireballing injection moulding machine rubs during dial rotation.
The deflection adjusting device of injection moulding machine described in the utility model, comprise the moveable cart wall, be used for the rotating disk of installation mold, the rotating shaft of rotating disk is installed on the described moveable cart wall by bearing or lining, it is characterized in that: piston body is arranged in the interior piston-cylinder of described moveable cart wall, between the sidewall of described piston body and the described cylinder sleeve oil seal is arranged, the rear end face of described piston body is communicated with the high pressure oil groove, the front end face of described piston body has the rubbing surface and the lower concave part of the described rotating disk of pushing tow, and described lower concave part is communicated with the high pressure oil groove behind the piston body.
Further, described lower concave part is enclosed in the described rubbing surface.
Further, the rear end face of described piston body equates with the area of front end face.
Further, the area of described lower concave part is slightly less than the area of piston body rear end face.
Further, described piston body is that the center of circle evenly distributes on the same circumference of moveable cart wall end face with the rotating shaft of rotating disk.
The high pressure oil groove of hydraulic oil after by piston body enters the lower concave part of front end face.Because lower concave part occupies most areas of front end face, according to Pascal's law, the pushing tow of rotating disk is mainly born by the hydraulic oil in the lower concave part.Rubbing surface is only born the pushing tow pressure of trace, and the hydraulic oil in the lower concave part also is penetrated on the rubbing surface, forms oil film, has alleviated friction.Rubbing surface has in fact also played the sealing function to the hydraulic oil in the lower concave part.
When the pressure of rotating disk reduced, to extrapolation, still because the area of lower concave part is slightly less than the area of piston body rear end face, there was difference in the suffered oil pressure of piston body front/rear end to rotating disk, so piston body is also pushed outwards by oil pressure.Thus, the bonding state between the contact-making surface of piston body and rotating disk still remains unchanged.When the pressure of rotating disk increased, piston body can be done inside indentation.In this way, strengthened adaptability, the reliability of fluid bearing integral body, simplified the structure the face pressure fluctuation.
Advantage of the present utility model is: the center line sag of chain of rotating disk and mould is little, mould die joint contraposition standard, and dial rotation speed is fast, and good stability can adapt to the workpiece pressure disturbance, and is simple in structure, cost is low, firm and durable.
Description of drawings
Fig. 1 is the structural representation of one of existing rotating disk guiding mechanism
Fig. 2 is two a structural representation of existing rotating disk guiding mechanism
Fig. 3 is a structural representation of the present utility model
Fig. 4 is the structural representation of piston body
Fig. 5 is that the A-A of Fig. 4 is to view
Fig. 6 is the position distribution schematic diagram of rotating disk upper piston body
The specific embodiment
With reference to accompanying drawing:
The deflection adjusting device of injection moulding machine described in the utility model, comprise the moveable cart wall, the rotating disk 2 that is used for installation mold 1, the rotating shaft 11 of rotating disk 2 is installed on the described moveable cart wall 3 by bearing 4 (or lining 4), piston body 5 is arranged in the piston-cylinder 12 in the described moveable cart wall 3, between the sidewall of described piston body 5 and the described cylinder sleeve 12 oil seal 7 is arranged, the rear end face of described piston body 5 is communicated with high pressure oil groove 6, the front end face of described piston body 5 has the rubbing surface 9 and the lower concave part 8 of the described rotating disk of pushing tow, and described lower concave part 8 is communicated with the high pressure oil groove 6 behind the piston body 5.
Described lower concave part 8 is enclosed in the described rubbing surface 9.Be carved with the oil duct 13 that is communicated with lower concave part 8 on the rubbing surface 9.The rear end face of described piston body 5 equates with the area of front end face.The area of described lower concave part 8 is slightly less than the area of piston body 5 rear end faces.
Described piston body 5 is that the center of circle evenly distributes on the same circumference of moveable cart wall 3 end faces with the rotating shaft of rotating disk.The oil pressure of the piston body of bottom is corrected the sagging effect of center of turntable line greater than the oil pressure of the piston body on top to obtain at this moment.
Also piston body 5 can be arranged to uneven distribution, bottom quantity is more than top, and this moment, the oil pressure of each piston body equated, corrected the sagging effect of center of turntable line to obtain.
When pressure oil is entered in the piston-cylinder 12 by high pressure oil groove 6, promote piston body 5 and withstand rotating disk 3, the end face of piston body and rotating disk are fit together closely, form cavity.Hydraulic oil enters into the oil pocket that lower concave part 8 forms from the duct 10 of piston body 5 cores then, promotes rotating disk and mould and rotates up an angle, adjusts the amount of deflection of mold center's line.The two-part dislocation control in the mould left and right sides within the acceptable range, improve the accurate grade of injection machine.And, accelerate the velocity of rotation of rotating disk because the dynamic and static pressure lubricating principle makes the piston of rotating disk and guiding mechanism be in all the time under the fluid friction.
The described content of this specification embodiment only is enumerating the way of realization of utility model design; protection domain of the present utility model should not be regarded as only limiting to the concrete form that embodiment states, protection domain of the present utility model also reach in those skilled in the art according to the utility model design the equivalent technologies means that can expect.
Claims (6)
1, the deflection adjusting device of injection moulding machine, comprise the moveable cart wall, be used for the rotating disk of installation mold, the rotating shaft of rotating disk is installed on the described moveable cart wall by bearing or lining, it is characterized in that: piston body is arranged in the interior piston-cylinder of described moveable cart wall, between the sidewall of described piston body and the described cylinder sleeve oil seal is arranged, the rear end face of described piston body is communicated with the high pressure oil groove, the front end face of described piston body has the rubbing surface and the lower concave part of the described rotating disk of pushing tow, and described lower concave part is communicated with the high pressure oil groove behind the piston body.
2, the deflection adjusting device of injection moulding machine as claimed in claim 1 is characterized in that: described lower concave part is enclosed in the described rubbing surface.
3, the deflection adjusting device of injection moulding machine as claimed in claim 1 or 2 is characterized in that: the rear end face of described piston body equates with the area of front end face.
4, the deflection adjusting device of injection moulding machine as claimed in claim 3 is characterized in that: the area of described lower concave part is slightly less than the area of piston body rear end face.
5, the deflection adjusting device of injection moulding machine as claimed in claim 4 is characterized in that: described piston body is that the center of circle evenly distributes on the same circumference of moveable cart wall end face with the rotating shaft of rotating disk.
6, the deflection adjusting device of injection moulding machine as claimed in claim 4 is characterized in that: described piston body is center of circle non-uniform Distribution on the same circumference of moveable cart wall end face with the rotating shaft of rotating disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201203164U CN201279883Y (en) | 2008-06-25 | 2008-06-25 | Sag adjustment apparatus for turntable mechanism of plastic jetting-moulding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201203164U CN201279883Y (en) | 2008-06-25 | 2008-06-25 | Sag adjustment apparatus for turntable mechanism of plastic jetting-moulding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201279883Y true CN201279883Y (en) | 2009-07-29 |
Family
ID=40926770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201203164U Expired - Lifetime CN201279883Y (en) | 2008-06-25 | 2008-06-25 | Sag adjustment apparatus for turntable mechanism of plastic jetting-moulding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201279883Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101332655B (en) * | 2008-06-25 | 2010-06-09 | 联塑(杭州)机械有限公司 | Deflection adjustment device of injection moulding machine |
-
2008
- 2008-06-25 CN CNU2008201203164U patent/CN201279883Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101332655B (en) * | 2008-06-25 | 2010-06-09 | 联塑(杭州)机械有限公司 | Deflection adjustment device of injection moulding machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20090729 Effective date of abandoning: 20080625 |