CN2550159Y

CN2550159Y - Clamp mould structure improvement of injection moulding machine

Info

Publication number: CN2550159Y
Application number: CN 02241645
Authority: CN
Inventors: 田瑞渊
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-07-16
Filing date: 2002-07-16
Publication date: 2003-05-14
Anticipated expiration: 2012-07-16

Abstract

The utility model relates to a clamp mould improving structure of an injection moulding machine. A plurality of longitudinal guide posts are arranged at the place between the top and the bottom of a machine table, the bottom of the upper mould fixing seat is provided with a plurality of lower pressing cylinders, and pressing cylinder shafts of which are provided with a lower mould; the middle of the top of the machine table is assembled with an upper pressing cylinder which extends longitudinally, and a pressing cylinder shaft of the upper pressing cylinder downwards extends and is assembled with a group of linkage; the bottom end of the linkage is fixed with an upper mould fixing seat which can be lifted along the guide posts, and the bottom of the upper mould fixing seat is provided with an upper mould corresponding to the lower mould; the linkage is composed of a first link, a second link and a third link. When the first time moulding is carried to close the moulds, the upper pressing cylinder is started, the upper mould fixing seat is downwards pushed through the spread linkage, the lower mould is upwards pushed, and injection moulding is carried out after the upper and the lower moulds are closed.

Description

Jet forming machine clamping structural improvement

Technical field

The utility model relates to a kind of clamping structure, refers in particular to a kind of Jet forming machine clamping structural improvement.

Background technology

In order to ensure standardized ejection formation quality; the mould of Jet forming machine must close in the process of moulding; strutted preventing; and the dealer also proposes the design of multiple kenel at the clamping operation of Jet forming machine; wherein; announce the 4th May Day eight No. 00 " Jet forming machine sandwich mold unit structure " novel patent cases hereinafter to be referred as the reference case as Taiwan; it is to set up one group of clamping that is positioned at the model fixing seat top on board; when last model fixing seat descends and on making; after bed die is involutory; utilize this clamping to descend; cooperate with the following oil hydraulic cylinder of being located at down the model fixing seat bottom, make; following model fixing seat clamping is in order to moulding.

The above-mentioned reference case no matter be that clamping or die sinking all have the loaded down with trivial details and consuming time shortcoming of action, below is promptly analyzed explanation in the process of operation:

1. when moving mold closing:

It must start upper hydraulic cylinder as it earlier shown in Figure 3ly, model fixing seat is descended, then starting the side oil hydraulic cylinder makes clamping be moved to the model fixing seat top as illustrated in fig. 4, start oil hydraulic cylinder down more as illustrated in fig. 5, model fixing seat is risen and will go up model fixing seat and push against in the clamping below, the upper and lower mould clamping of promptly feasible position between upper and lower model fixing seat is in order to moulding.

2. when moulding finishes die sinking:

After moulding finishes, it must discharge the pressure of oil hydraulic cylinder down earlier, and start upper hydraulic cylinder and upper and lower model fixing seat is descended together, treat that mould drops to default sensor (position not shown in the figures), promptly start the side oil hydraulic cylinder and clamping is removed outward, restart upper hydraulic cylinder and will go up model fixing seat die sinking, and finish the die sinking action together with the past top offset of mold.Letter speech, all need three actions just can finish with reference to the mold closing and the die sinking action of case, and each moulding all need these trivial step, to such an extent as to moulding is consuming time, efficient difference and cost height.

And with reference to case except the too many many shortcomings that cause of above-mentioned clamping process steps, it also has the restriction of the product of moulding differing heights simultaneously:

By shown in its patent accompanying drawing as can be known, in order to improve shaping efficiency, usually on board, be provided with two groups of moulds arranged side by side at least, it must could start the die sinking of side oil hydraulic cylinder by the sensor induction again, so the height of two moulds arranged side by side is essential identical, otherwise the height difference that two moulds descend can't judge whether start the side oil hydraulic cylinder, but thus, its product and mould specification of desiring moulding promptly is restricted.Again, the dilatancy of foaming raw material is high, in the forming process of solidifying, promptly can expand outwardly as long as have living space, so if the difference in height of two groups of moulds is too many, when descending when desiring die sinking under it, sensor just senses molded this good group mould and opens, another group mould also can be opened with work, causes still uncured finished product to continue to expand and be out of shape, and causes the bad situation of quality.

The utility model content

Main purpose of the present utility model be to provide a kind of action less, shaping efficiency height and use the unrestricted Jet forming machine clamping of the height structural improvement of mould.For achieving the above object, major technique means of the present utility model are to provide a kind of Jet forming machine clamping structural improvement, it is to be provided with several parallel guide posts between the top, bottom in board, the bottom group of board is equipped with several pushing cylinders, the pressure cylinder shaft of pushing cylinder up projection is assembled with bed die, the crown center of board then is assembled with the last cylinder pressure of a longitudinal extension, wearing one on each guide posts can be the last model fixing seat that slide down is moved in addition, and bottom of model fixing seat then is provided with and the corresponding mold of bed die on this;

The pressure cylinder shaft of last cylinder pressure projection down and assemble two groups of connection rod set, the bottom of two groups of connection rod set then is hubbed at both sides, model fixing seat top respectively, this connection rod set comprises the first connecting rod that is pivoted with the described pressure cylinder shaft of going up cylinder pressure, the third connecting rod that is pivoted with last model fixing seat, be pivoted and be connected in second connecting rod between first connecting rod and the third connecting rod free end, this second connecting rod is slightly triangular in shape, an end angle and be hubbed at board wherein, and when third connecting rod is stretching when making model fixing seat reduce to extreme lower position, between third connecting rod and the second connecting rod, between second connecting rod and the board, and the centring point between third connecting rod and the last model fixing seat is to present next linearity.

Description of drawings

Fig. 1 is a three-dimensional appearance schematic diagram of the present utility model;

Fig. 2 is a forward sight generalized section of the present utility model;

Fig. 3 is that connection rod set of the present utility model is moved the forward sight generalized section of a half;

Fig. 4 is the forward sight generalized section of the complete mold closing state of the utility model;

Fig. 5 is the part front-view schematic diagram of the utility model when being implemented on the mould of differing heights.

The specific embodiment

Further specify structure of the present utility model, feature and other purposes for making, describe in detail as the back with preferred embodiment and accompanying drawing now:

Please consult illustrated in figures 1 and 2 simultaneously, the utility model mainly is provided with several parallel guide posts 11 between the top/bottom part of board 10, the bottom group of board 10 is equipped with several pushing cylinders 20, the up projection of the pressure cylinder shaft of pushing cylinder 20, and be assembled with bed die 21 in the top of pressure cylinder shaft, the crown center of board 10 then is assembled with the last cylinder pressure 12 of a longitudinal extension, the pressure cylinder shaft of last cylinder pressure 12 projection down and assemble one group of connection rod set 30, the bottom of connection rod set 30 then fixes one can be along the last model fixing seat 40 of guide posts 11 liftings, is provided with mold 41 in the bottom of last model fixing seat 40 with corresponding with described bed die 21.When desiring mold closing when the moulding first time, cylinder pressure 12 (as shown in Figure 3 and Figure 4) in the startup, to go up model fixing seat 40 through connection rod set 30 and down pass, pushing cylinder 20 is up passed bed die 21 and is made upper and

lower mould

41,21 closures, promptly can do the operation of ejection formation; And moulding is when finishing die sinking, then starts to go up cylinder pressure 12 mold 41 is opened, and promptly can take out finished product, then only mold 41 need get final product toward bottom offsets when desire is made for the second time later operations for forming, so the action of its mould less, stroke weak point and efficient height.

Above-mentioned is general introduction for structure of the present utility model and action, its detailed structure is then addressed as the back: please consult illustrated in figures 1 and 2 again, the described model fixing seat 40 of going up is the blocks that supply each guide posts 11 to pass for, described connection rod set 30 then is provided with a last fixed block 31 that is fixed in the pressure cylinder shaft bottom of cylinder pressure 12, be divided into the following fixed block 32 of both sides, model fixing seat 40 top, be hubbed at the first connecting rod 33 at fixed block 31 two ends, be hubbed at down the third connecting rod 35 on the fixed block 32, be pivoted and be connected in second connecting rod 34 between first connecting rod 33 and third connecting rod 35 free ends, this second connecting rod 34 is slightly triangular in shape, an end angle and be hubbed at board 10 wherein, and by shown in the accompanying drawing as can be known, be to be pivoted between this first connecting rod 33 and the second connecting rod 34 with first axostylus axostyle 36, then be to be pivoted between second connecting rod 34 and the third connecting rod 35 by second axostylus axostyle 37, then be to be pivoted between second connecting rod 34 and the board 10 with the 3rd axostylus axostyle 38, the 3rd axostylus axostyle 38, and the following centring point that is pivoted of fixed block 32 and third connecting rod 35 and be a straight line, and each connecting rod all is between last fixed block 31 and following fixed block 32, again by as can be known shown in Figure 4, this first connecting rod 33 the position is set, be to make second axostylus axostyle 37 toward lower swing when the two or two connecting rod 34, when the 3rd axostylus axostyle 38 and following fixed block 32 are a straight line, this first connecting rod 33 just is level, that is the centring point at first connecting rod 33 two ends is horizontal.

At the beginning of desiring moulding, cylinder pressure 12 in the startup, its pressure cylinder shaft is descended as illustrated in fig. 3, second connecting rod 34 is a up beat of axle center with the 3rd axostylus axostyle 38 promptly, impel the bottom of third connecting rod 35 to push down fixed block 32 to bottom offset, when the centring point at third connecting rod 35 two ends is presented next straight line (as shown in Figure 4), the extreme lower position of fixed block 32 under promptly being, then start pushing cylinder 20, make its drive bed die 21 toward rising with mold 41 closures of position in last model fixing seat 40 bottoms, again pushing cylinder 20 is given level pressure, because the third connecting rod 35 of connection rod set 30 is a straight line with the centring point of second connecting rod 34 at this moment, so it is crooked that its ejection force that is subjected to pushing cylinder 20 also is unlikely to, promptly make, bed die 4121 is subjected to connection rod set 30 and is the state of closing with the ejection of pushing cylinder 20, promptly can carry out the ejection formation operation.When moulding finishes, as long as start to go up cylinder pressure 12 mold 41 is opened, promptly can be taken out finished product, and desire is when making for the second time operations for forming, because level pressure is so bed die 21 has been in the precalculated position to pushing cylinder 20, cylinder pressure 12 orders about mold 41 declines as long as restart this moment upward.

From the above, utilize design of the present utility model, when first moulding mold closing, as long as starting upward, cylinder pressure 12 makes model fixing seat 40 descend together with mold 41, restarting pushing cylinder 20 gets final product bed die 21 risings, as long as mold 41 is up risen,, and save man-hour so its action is very simple; When especially making for the second time later operations for forming, if start go up cylinder pressure 41 promptly can mold closing, die sinking, its action is more simple and can significantly reduce its unnecessary actuating length, and then shortens man-hour significantly, raises the efficiency and cost.

In brief, because connection rod set of the present utility model struts afterwards promptly knows its predetermined mold closing position, after only make mold closing by last cylinder pressure, with actions such as die sinkings, so it is as long as the pressure with each pushing cylinder configures in the initial die trial stage, and the job design set of molds that can produce differing heights simultaneously so, see also shown in Figure 5 if connection rod set 30 mold 41 is down released after, distinctly bed die 21 is released, and the pushing cylinder 20 of shoring each bed die 21 respectively given level pressure, can obtain the location, as long as thereafter connection rod set 30 drop to predetermined altitude promptly can mold closing, so the height of mould molding finished product is not restricted, the producer can work out mould according to finished product or order volume that its desire is produced.

In sum, the clamping action of ejection formation can be significantly simplified in design of the present utility model, and improving its production efficiency, and the height of its mould is unrestricted, the producer more can flexible Application, so design of the present utility model can improve known disadvantage and have progressive.

Claims

1, a kind of Jet forming machine clamping structural improvement, it is to be provided with several parallel guide posts between the top, bottom in board, the bottom group of board is equipped with several pushing cylinders, the pressure cylinder shaft of pushing cylinder up projection is assembled with bed die, the crown center of board then is assembled with the last cylinder pressure of a longitudinal extension, wearing one on each guide posts can be the last model fixing seat that slide down is moved in addition, and bottom of model fixing seat then is provided with and the corresponding mold of bed die on this, it is characterized in that: