CN103240862B - For the tool closes system of plastic blow molding machine - Google Patents
For the tool closes system of plastic blow molding machine Download PDFInfo
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- CN103240862B CN103240862B CN201210194365.3A CN201210194365A CN103240862B CN 103240862 B CN103240862 B CN 103240862B CN 201210194365 A CN201210194365 A CN 201210194365A CN 103240862 B CN103240862 B CN 103240862B
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Abstract
A kind of tool closes system for plastic blow molding machine, it is characterized in that: drive substrate, front mold clamping plate and be arranged on front mold clamping plate and drive the rear mold clamping plate between substrate, wherein drive substrate, front mold clamping plate and rear mold clamping plate to comprise the induction element be arranged on movably on guiding piece, described guiding piece is arranged on bracket; Drive unit, it is fixed to driving substrate, and comprises extensible and retractible drive rod, and described drive rod is hinged to rear mold clamping plate, for the power transmitted without any moment of flexure; With the frame element of two substantially C shapes or approximate U shape, itself and guiding piece are arranged abreast, spacing side by side certain distance, and the centre plate part that each frame element has general horizontal to extend and the plate-like piece that two general vertical extend, the plate-like piece of any one general vertical in the plate-like piece of wherein two general vertical is hinged to driving substrate, and the plate-like piece of another general vertical is hinged to front mold clamping plate.
Description
Technical field
The present invention relates to a kind of tool closes equipment for plastic blow molding machine.
Background technology
Various designs for the tool closes system of plastic blow molding machine are known.The power realizing introducing symmetry by the drive unit be arranged on below mould and symmetrical leverage by a kind of design that each equipment manufacturers use.But in fact, this bottom formula drive unit is disadvantageous in the multiple factor of production.And, owing to using leverage, frame for movement relative complex, and increase and open stroke and can only bring great difficulty.
Another kind of common design is so-called three-plate type system.Drive unit is arranged on after the 3rd plate (so-called crosshead) in such a system.Two-half die is towards synchronously the ensureing usually by tooth bar or lever that be synchronized with the movement of the mold parting surface engaged.The advantage of this system is relatively easily compensate different mold thickness and stroke and easily enter mould (for cooling), scrap belt (wastebelts) and bottom formula blow molding station from below.Shortcoming is to produce distortion in the guiding piece region of closure plate, and this distortion is particularly caused by the moment of flexure that front closure plate produces because of system.Comparatively speaking, this needs very large effort to compensate this distortion.Particularly when very large mould prodger, in the distribution of power, create problem, this problem does not easily solve by the structural design of the system of whole power.
Another known closed cell system also has the drive unit being positioned at rear portion, and attempts to prevent in the guidance system of any bending introducing mold clamp board by the very complicated leverage of design or intermediate plate.
Summary of the invention
The object of this invention is to provide a kind of closed-system, it eliminates moment of flexure lead-in plate induction element, and simplifies in the extreme due to the reason structure of cost, and allows to enter below blow mold most possibly.Different mold thickness should be kept, as in known three-plate type system with the possibility opening stroke.
This object is achieved by the technical characteristic of claim 1 according to the present invention.Define favourable design of the present invention in the dependent claims.
According to the present invention, the system relating to mold clamp board induction element (induction element can be such as rectilinear guide, crossbeam or other system be applicable to) is connected to system for power transmission being entered in the following manner in mold clamp board, that is, eliminate, by power delivery system, moment of flexure is entered induction element.The frame element of two so-called gap frame elements that use is arranged side by side abreast or approximate U shape is delivered in the power between two mold clamp boards.The effect of selected configuration is, the guiding quality of the distortion produced in power delivery system on mold clamp board does not affect, and keeps mold clamp board always parallel each other thus.In gap frame element area, almost only cause the generation of being out of shape according to system of the present invention, but do not cause distortion in guiding piece region.Due to simple kinematic structure (frame element only has two pin joints), it guarantees the tool closes system that production cost aspect has superiority.
Gap frame element also can be made up of some parts, such as crossbeam and end piece.
For power being passed to mold clamp board from gap frame and driving the pin joint of substrate can realize with different modification.Known and common modification is the axial thrust bearing of such as bolt arrangement or energy pivotable (pivotingoption).Very important for function of the present invention by the transmission of the basic power without moment of flexure of pin joint.Also be feasible with the hinge portion that the bending hinge portion of phase strain type replaces without any moment of flexure.
Another advantage of tool closes system of the present invention is, for bottom formula blow molding station and bottom calibration, easily enter mould from below.
According to another structure of the present invention, substrate and two mold clamp boards are driven to be connected to (gap frame element and drive rod are hinged on it respectively substantially) annex securely, the annex of two mold clamp boards extends substantially on its whole width, so that power can be introduced into (ideally distributing over the entire width) blown-moulding region.At stress state, mold clamp board does not bend, and they also do not cause surrounding's (generation) banking motion of guiding piece, but they keep completely parallel each other.The induction element of mold clamp board is not used in transmission closing force.
Also there is very favorable advantage: pin joint is arranged along the common horizontal line that the longitudinal center's axis with drive rod is in height consistent, at pin joint place drive rod by closed force transfer to the annex of rear mold clamping plate, and there occurs and power is passed to gap frame element or from gap frame element transmitting force.
Can form gap frame element substantially by the flat sheet material of suitable thickness, wherein in loaded situation, the bending of two angled edge plate-like pieces is less than 0.5 millimeter.
Tool closes system according to the present invention is applicable to different mold thickness and opens stroke.Calibration procedure causes very little wearing and tearing.
Monolateral and polygon equipment is all applicable to according to system of the present invention.
Accompanying drawing explanation
Mutually become obvious based on accompanying drawing other advantages of the present invention and details according to explanation below, wherein:
In the mode of pure schematic diagram and top view, Fig. 1 illustrates that closed-system according to the present invention is in the embodiment of closure state;
Fig. 2 illustrates that the closed-system in Fig. 1 is in open mode;
Fig. 3 is the view that gap frame element is shown, wherein distortion under loading shown in broken lines;
Fig. 4-6 illustrates the second embodiment with the view corresponding to Fig. 1-4.
Detailed description of the invention
On bracket 1 (it transversely can move relative to figure plane between extruder station (extruderstation) and blow molding station (blowstation)), the guiding piece 2 extended in figure plane is mounted and has the driving substrate 3, rear mold clamping plate 4 and the front mold clamping plate 5 that arrange movably thereon, drives substrate 3, rear mold clamping plate 4 and front mold clamping plate 5 to be provided with the induction element 6a coordinated with guiding piece 2 for this reason.Two half modules 6 of blow mold are fixed to mold clamp board 4 and 5.
The drive unit 7 being provided with extensible and retractible drive rod 8 is arranged on the rear side of driving substrate 3.The rear side of rear mold clamping plate 4 is attached to plate shape annex 9 (plate shape annex 9 substantially extends on the whole width of mold clamp board 4 and drive rod 8 is hinged to plate shape annex 9) securely, so that the pulling force of the longitudinally direction extension of central axis 10 and pressure only can be passed to annex 9 by drive rod, thus pass to rear mold clamping plate 4 again, but do not transmit moment of flexure.
Drive rod passes in the central authorities of width and drives substrate, drives substrate to have two the side prodgers 11 be attached to securely on it, and the frame element of two of extending abreast with guiding piece cardinal principle C shape is hinged to prodger 11.Formed hinged by bolt 13 in an embodiment, bolt 13 is passed in the corresponding hole of the upper end of the rear plate-like piece 14 of the general vertical of frame element 12.Gap frame element 12 also comprises the middle plate-like piece 15 of general horizontal, and middle plate-like piece 15 becomes the front plate-like part 16 of general vertical gradually, and front plate-like part 16 has the shape identical with rear vertical plate-like part 14 on mirror image.
The annex 17 of similar prodger 9 almost extends over the entire width, and mold clamp board 5 projects to the front side of tool closes system in the past, and is connected to mold clamp board 5 securely.The upper end of the plate-like piece 16 of two general vertical is hinged to pin joint 18 at annex 17 place, and pin joint 18 is also depicted as bolt in the accompanying drawings.Pin joint 13,18 and the pin joint 19 (drive rod 8 is hinged to pin joint 19) of gap frame element 12 are placed on identical At The Height, that is, on central longitudinal axis 7.Reference numeral 20 represents simultaneously operating parts, simultaneously operating parts inclusion two parallel racks 21 and the gear between tooth bar 22.Tooth bar 21 is fixed to and drives substrate 3 and rear mold clamping plate 4.
In state shown in Fig. 2, mold clamp board 4 and 5 and two half modules 6 being fixed to mold clamp board 4 and 5 are opened, so that blow-molded article 23 can be removed (or new shape base can be accepted at extruder station place).Compared to Figure 1 comparatively, show the assembly be made up of three plates 3,4,5 and gap frame element 12 and be moved into illustrated right side.When closing force (without any moment of flexure) is passed to rear mold drive plate 4 respectively from drive unit 7 and drive rod 8 and is therefore passed to blow mold 6, power is passed to front closure plate 5 by gap frame element 12 simultaneously, thus power (substantially without any moment of flexure) is introduced into gap frame element 12 by pin joint 13, and introduce front closure plate 5 (also basic without any moment of flexure) by pin joint 18.Due to reagentia power backward, the assembly be made up of three plates 3,4,5 and gap frame element 12 is moved into the left side of guiding piece 2 in the view of Fig. 1.Two gap frame elements 12 are out of shape in this process, so that the plate-like piece of two general vertical 14 and 16 elastic bending separately, as shown in Figure 4.When mould 6 is opened, realize such effect: the assembly be made up of three plates and gap frame element is again moved into right side on guiding piece 2.
Fig. 3 is enlarged drawing, is shown in solid line in the frame element 12 of approximately C shape or U-shaped under unloaded state and distortion under loading shown in broken lines.
Because C shape or U-shaped frame element 12 receive take to bend, sizable stress of the form of Tension and Compression, frame element can be made up of different elements, and each element only bears a kind of stress.Fig. 4-6 is in second embodiment depending on there is shown of the present invention tool closes system corresponding to Fig. 1-3.In this embodiment, the plate-like piece 14 of general vertical, 16, the plate-like piece 15a (the plate-like piece 15a of level is arranged in the only about half of At The Height of vertical plate-like piece 14,16) of lower horizontal plate-like piece 12a and level by hinged and be interconnected, hingedly to be realized by bolt.Closing force is generation effect on the element separated, so that the element separated causes pure bending stress, produces compression on horizontal cell 12a on vertical element 14 and 16, and produce tensile stress at element 15a when the only about half of At The Height close to vertical element 14,16 is hinged.The precondition of this situation can move freely at all tie point places.
And the structure of the second embodiment is consistent with the structure of first embodiment.
Due to their shape, C shape or U-shaped frame element have such effect: blow molding die prodigiosin is freely entered from both sides.
Claims (9)
1., for a tool closes system for plastic blow molding machine, it is characterized in that:
Drive substrate (3), front mold clamping plate (5) and be arranged on front mold clamping plate (5) and drive the rear mold clamping plate (4) between substrate (3), substrate (3), front mold clamping plate (5) and rear mold clamping plate (4) are wherein driven to comprise the induction element (6a) be arranged on movably on guiding piece (2), described guiding piece is arranged on bracket (1)
Drive unit (7), it is fixed to and drives substrate (3), and comprises extensible and retractible drive rod (8), and described drive rod is hinged to rear mold clamping plate (4), for transmitting force without any moment of flexure,
With the frame element (12) of two substantially C shapes or approximate U shape, described frame element and guiding piece (2) are arranged abreast, spacing side by side certain distance, and the centre plate part (15) that each frame element has general horizontal to extend and the plate-like piece (14,16) that two general vertical extend
A plate-like piece (14) in the plate-like piece of wherein two general vertical is hinged to and drives substrate (3), another plate-like piece (16) in the plate-like piece of two general vertical is hinged to front mold clamping plate (5), and the frame element of wherein said cardinal principle C shape or approximate U shape moves along described guiding piece relative to described bracket together with described front mold clamping plate with described driving substrate.
2. tool closes system according to claim 1, it is characterized in that, described driving substrate has two the side prodgers (11) be attached to securely on it, described frame element is hinged to described prodger (11), the rear side of described rear mold clamping plate (4) is attached to plate shape annex (9) securely, the whole width of described plate shape annex (9) mold clamp board (4) in the rear to extend and described drive rod (8) is hinged to described plate shape annex (9), the annex (17) projecting to the front side of described tool closes system from described front mold clamping plate (5) is connected to described front mold clamping plate (5) securely.
3. tool closes system according to claim 2, it is characterized in that, the 3rd hinge portion (19) that the second hinge portion (13) that described another plate-like piece (16) is hinged to first hinge portion (18) of described front mold clamping plate (5), described frame element is hinged to described prodger (11) and described drive rod (8) are hinged to described plate shape annex (9) is arranged along common horizontal line.
4. tool closes system according to claim 3, is characterized in that, described first hinge portion (18), described second hinge portion (13) and described 3rd hinge portion (19) are formed by bolt arrangement.
5. tool closes system according to claim 3, is characterized in that, described first hinge portion, described second hinge portion and described 3rd hinge portion are formed by the axial thrust bearing of energy pivotable.
6. tool closes system according to claim 3, is characterized in that, described first hinge portion, described second hinge portion and described 3rd hinge portion are formed by bending hinge portion.
7. the tool closes system according to any one of claim 1-2, is characterized in that, frame element (12) is formed by flat sheet material.
8. the tool closes system according to any one of claim 1-2, is characterized in that, frame element is made up of hingedly interconnective element (14,16,15a, 12a).
9. tool closes system according to claim 1, is characterized in that, drive unit (7) is by hydraulic pressure, electric or pneumatic drive unit, or the combination of these drive units is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210194365.3A CN103240862B (en) | 2012-02-08 | 2012-02-08 | For the tool closes system of plastic blow molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210194365.3A CN103240862B (en) | 2012-02-08 | 2012-02-08 | For the tool closes system of plastic blow molding machine |
Publications (2)
| Publication Number | Publication Date |
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| CN103240862A CN103240862A (en) | 2013-08-14 |
| CN103240862B true CN103240862B (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210194365.3A Active CN103240862B (en) | 2012-02-08 | 2012-02-08 | For the tool closes system of plastic blow molding machine |
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| CN (1) | CN103240862B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0554068A1 (en) * | 1992-01-31 | 1993-08-04 | Amir Ziv-Av | A clamping assembly for an injection moulding installation |
| DE4426521C1 (en) * | 1994-07-27 | 1995-09-28 | Battenfeld Fischer Blasform | Drive useful for closing blow moulding dies avoiding distortion |
| DE19528751A1 (en) * | 1995-04-12 | 1996-10-17 | Tahara Machinery Ltd | Blow moulding closure system esp. for rapid, accurate double-station operation |
| CN1530196A (en) * | 2003-02-24 | 2004-09-22 | �����Զ�����ʽ���� | Shaper and shaping method thereof |
| CN101927560A (en) * | 2009-06-18 | 2010-12-29 | 蔡伽依 | Quick die closing mechanism of plastic extrusion blowing machine |
-
2012
- 2012-02-08 CN CN201210194365.3A patent/CN103240862B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0554068A1 (en) * | 1992-01-31 | 1993-08-04 | Amir Ziv-Av | A clamping assembly for an injection moulding installation |
| DE4426521C1 (en) * | 1994-07-27 | 1995-09-28 | Battenfeld Fischer Blasform | Drive useful for closing blow moulding dies avoiding distortion |
| DE19528751A1 (en) * | 1995-04-12 | 1996-10-17 | Tahara Machinery Ltd | Blow moulding closure system esp. for rapid, accurate double-station operation |
| CN1530196A (en) * | 2003-02-24 | 2004-09-22 | �����Զ�����ʽ���� | Shaper and shaping method thereof |
| CN101927560A (en) * | 2009-06-18 | 2010-12-29 | 蔡伽依 | Quick die closing mechanism of plastic extrusion blowing machine |
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| Publication number | Publication date |
|---|---|
| CN103240862A (en) | 2013-08-14 |
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