CN202685242U - Clamping mechanism - Google Patents
Clamping mechanism Download PDFInfo
- Publication number
- CN202685242U CN202685242U CN 201220194260 CN201220194260U CN202685242U CN 202685242 U CN202685242 U CN 202685242U CN 201220194260 CN201220194260 CN 201220194260 CN 201220194260 U CN201220194260 U CN 201220194260U CN 202685242 U CN202685242 U CN 202685242U
- Authority
- CN
- China
- Prior art keywords
- locking
- oil pocket
- locking piston
- oil
- spool
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model relates to a clamping mechanism which comprises a moving die plate which can be opened and closed, a fixed die plate, a moving die plate which drives the moving die plate to open and close, and a clamping device which is connected with the moving die plate to provide clamping force. The clamping device comprises a clamping oil cylinder, a clamping piston rod, a clamping piston and a clamping valve core component. The clamping piston comprises a communicating channel which is arranged on the lateral wall of the clamping piston and a central channel which is arranged in an axial direction. The clamping piston divides the clamping oil cylinder into a first clamping oil cavity and a second oil cavity, and the first clamping oil cavity is communicated with the second clamping oil cavity through the communicating channel and the central channel, wherein communicating and separating of the first clamping oil cavity and the second clamping cavity are controlled by the clamping valve core component. By connecting the clamping piston rod of the clamping device to the middle position of the moving die plate, the clamping force can be evenly transmitted to the moving die plate and the stable and even clamping force can be provided, and therefore stability of the device is improved. In addition, the process of arranging a plurality of clamping devices is avoided, and complexity and cost of equipment is reduced.
Description
Technical field
The utility model relates to clamping mechanism, more particularly, relates to a kind of clamping mechanism that can be used for injection machine, die casting machine, hydraulic press, Form-bar Press Machine etc.
Background technology
Two plate vertical compression type mould closing mechanisms of existing hydraulic injection molding machine, hydraulic press etc., the most of employing by two mould shifting oil cylinders drive moving platens done the action of opening and closing mould; With Mode-locking oil cylinder with mold cramping and required clamp force is provided.
The inventor has successively proposed multinomial clamping mechanism; such as Chinese utility model patent 201020638296.7,200920264197.4,201020576769.5; Chinese invention patent applications 200910213625.5 etc. adopt the double-plate structure, Mode-locking oil cylinder is set clamp force is provided.As shown in Figure 1, but clamping mechanism is solid plate and the moving platen that comprises folding, drive the moving platen matched moulds be connected with die sinking mould shifting device, be connected the clamping apparatus that clamp force is provided with moving platen.Mould shifting device is generally two or three, is arranged on the corner of moving platen; And clamping apparatus is two or one, is arranged on the corner that mould shifting device is not installed.Utilize mould shifting device to drive moving platen matched moulds and die sinking, and utilize clamping apparatus that clamp force is provided.Yet, because clamping apparatus is arranged on the corner of moving platen, cause easily the transmission of clamp force uneven, affect the stability of locked mode.In addition, if a plurality of clamping apparatus are set, can increase the complexity of equipment, increase cost.
The utility model content
The technical problems to be solved in the utility model is, a kind of clamping mechanism rational in infrastructure, reliable is provided.
The technical scheme that its technical problem that solves the utility model adopts is: construct a kind of clamping mechanism, but the moving platen that comprises folding be connected with solid plate the described moving platen matched moulds of drive be connected with die sinking mould shifting device, be connected the clamping apparatus that clamp force is provided with described moving platen; Described clamping apparatus comprises Mode-locking oil cylinder, first end is fixedly connected on the locking piston bar that described moving platen centre position is located, the second end inserts described Mode-locking oil cylinder, be arranged on the locking piston that is fixedly connected with described locking piston bar the second end in the described Mode-locking oil cylinder, and be arranged on the locked mode core assembly on the described locking piston bar;
Described locking piston is included in the communicating passage of its sidewall setting and the central passage that arranges at axis direction; Described locking piston is divided into the first locked mode oil pocket and the second locked mode oil pocket with described Mode-locking oil cylinder; and be communicated with described the first locked mode oil pocket and the second locked mode oil pocket by described communicating passage and central passage, and be communicated with or cut off described the first locked mode oil pocket and the second locked mode oil pocket by described locked mode core assembly control.
In clamping mechanism of the present utility model, described locking piston bar is provided with locking oil circuit and release oil circuit at axis direction; The end that described locking piston bar inserts described locking piston is provided with the spool support;
Described core assembly comprise be arranged on described locking piston central passage in valve seat and be arranged on described valve seat and the locking piston bar between spool; Described valve seat is provided with the valve base channel that is communicated with described locking piston central passage and the second locked mode oil pocket; Described spool seals coupling near an end of described valve seat mutually with described valve base channel;
Described spool is slidably mounted in described spool support, is provided with locking oil pocket and the release oil pocket that is isolated between described spool and described spool support; Described spool support is provided with and is communicated with described locking oil circuit and the locking passage of locking oil pocket and the solution lock access that is communicated with described release oil circuit and release oil pocket;
When hydraulic oil through described locking oil circuit, when the locking passage injects described locking oil pocket, promote the described valve base channel of described seal spool;
When hydraulic oil through described release oil circuit, when separating lock access and injecting described release oil pocket, promote the open described valve base channel of described spool.
In clamping mechanism of the present utility model, described spool support comprises that described locking piston bar inserts the end of described locking piston and at the hard-wired installed part of described end;
The end of described locking piston bar offers the first annular groove; Described installed part is provided with the second annular groove near a side of described locking piston bar;
Described spool comprises the spool main body of the described spool support periphery that is slidingly located in, and the inwall of described spool main body is provided with the annular lip of isolated described the first annular groove and the second annular groove; Form respectively described locking oil pocket and release oil pocket in the both sides of described annular lip;
Described locking channel setting is terminal at described locking piston bar, is communicated with described the first annular groove and locking oil circuit; Described release channel setting is communicated with described the second annular groove and release oil circuit on described installed part.
In clamping mechanism of the present utility model, described spool support comprises the installed part that is fixedly installed on described locking piston bar end, and described installed part is provided with the first annular groove near a side of described locking piston bar end;
Described spool comprises the perforation spool main body of the described installed part periphery that is slidingly located in and the closure member that is fixedly mounted on described spool main body outer ends;
Described spool main body is provided with annular lip near a side of described locking piston bar end, and described annular lip is sealed described first ring groove and formed described release oil pocket; Form described locking oil pocket between described closure member and the described installed part;
Described solution lock access and locking channel setting are on described installed part.
In clamping mechanism of the present utility model, described closure member extends protuberance to described installed part, and corresponding described installed part is provided with depressed part; The sealing of described protuberance is slided and is inserted in the described depressed part, forms described locking oil pocket at described protuberance and depressed part, and with described locking channel connection.
In clamping mechanism of the present utility model, described closure member also is provided with balance channel, also is provided with the balance oil pocket between described installed part and the described closure member, and described balance oil pocket is communicated with described the second locking oil pocket by described balance channel.
In clamping mechanism of the present utility model, described valve seat and described locking piston are one-body molded, shrink to the central passage direction at the inwall of described locking piston to form; Described valve base channel is arranged on the sidewall of described locking piston;
Described spool support comprise described locking piston bar the described locking piston of insertion end and at the described terminal seal of installing;
The end of described locking piston bar is provided with the first annular groove;
Described seal separates described locking piston inner space and described the second locked mode oil pocket, and is provided with the second annular groove in the inboard of described seal;
Described spool comprises the spool main body that is set in described spool support periphery, described spool main body radially inwardly is provided with the annular lip of isolated described the first annular groove and the second annular groove, forms respectively described locking oil pocket and release oil pocket in the both sides of described annular lip.
In clamping mechanism of the present utility model, the second end of described locking piston bar inserts and passes described locking piston, and the second end of described locking piston bar passes described Mode-locking oil cylinder; Described locking oil circuit and release oil circuit are arranged on described locking piston bar and pass in a section of described locking piston.
In clamping mechanism of the present utility model, described clamping mechanism also comprises the release connecting rod that stretches into described Mode-locking oil cylinder and be fixedly connected with described valve seat from a side relative with described locking piston bar; Described release connecting rod be provided with described the second locked mode oil pocket isolated unload pumping cavity;
Be provided with the interface channel that is communicated with described valve base channel and described the second locked mode oil pocket between described release connecting rod and the described valve seat.
In clamping mechanism of the present utility model, described mould shifting device comprises at least two groups, be installed in respectively the diagonal position place of described moving platen, each described mould shifting device comprises mould shifting oil cylinder, be arranged on shifting formwork piston in the described mould shifting oil cylinder and an end is fixedly connected with the other end and inserts the shifting formwork piston rod that described mould shifting oil cylinder is fixedly connected with described shifting formwork piston with described moving platen;
Described clamping mechanism also is provided with the pressure relief device that is communicated with described the second locked mode oil pocket; Described pressure relief device comprise be communicated with described the second locked mode oil pocket and mould shifting oil cylinder move back oil circuit and control open and close described move back oil circuit move back the oil circuit breaker assembly.
Enforcement the utlity model has following beneficial effect: the centre position that is connected to moving platen by the locking piston bar with clamping apparatus is located, so that clamp force can be delivered to moving platen uniformly, provides the clamp force of stable and uniform, has improved the reliability of equipment.In addition, avoid arranging many group clamping apparatus, reduced complexity and the cost of equipment.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the cross-sectional schematic that the first embodiment of the utility model clamping mechanism is in released state;
Fig. 2 is the cross-sectional schematic that the first embodiment of the utility model clamping mechanism is in mode-lock status;
Fig. 3 is the cross-sectional schematic that the second embodiment of the utility model clamping mechanism is in released state;
Fig. 4 is the cross-sectional schematic that the second embodiment of the utility model clamping mechanism is in mode-lock status;
Fig. 5 is the cross-sectional schematic that the 3rd embodiment of the utility model clamping mechanism is in released state;
Fig. 6 is the cross-sectional schematic that the 3rd embodiment of the utility model clamping mechanism is in mode-lock status;
Fig. 7 is the cross-sectional schematic that the 4th embodiment of the utility model clamping mechanism is in released state;
Fig. 8 is the cross-sectional schematic of a kind of mode of the 5th embodiment of the utility model clamping mechanism;
Fig. 9 is the cross-sectional schematic of the another kind of mode of the 5th embodiment of the utility model clamping mechanism;
Figure 10 is the cross-sectional schematic that the 6th embodiment of the utility model clamping mechanism is in released state.
The specific embodiment
As shown in Figure 1, 2, be the first embodiment of clamping mechanism of the present utility model, can be used on the equipment such as injection machine, die casting machine, hydraulic press, Form-bar Press Machine.
But this clamping mechanism comprise the moving platen 130 of folding are connected, drive with solid plate moving platen 130 matched moulds be connected with die sinking mould shifting device, be connected clamping apparatus that clamp force is provided etc. with moving platen 130.Be separately installed with mould at moving platen 130 and solid plate 140, so that processing such as injection moulding, die casting.
In the present embodiment, this mould shifting device comprises two groups, is installed in respectively the diagonal position place of moving platen 130; Certainly, mould shifting device also can for one group or with many groups, guarantee to drive moving platen 130 and get final product to solid plate 140 direction easy motions.
This mould shifting device comprises mould shifting oil cylinder 151, shifting formwork piston 152, shifting formwork piston rod 153 etc., and it is reciprocating that outputting power drives moving platen 130, realizes the actions such as die sinking, matched moulds.This shifting formwork piston 152 is arranged in the mould shifting oil cylinder 151, and under the control of hydraulic oil, shifting formwork piston 152 can be interior reciprocating at mould shifting oil cylinder 151.
Further, can be provided with sealing ring between shifting formwork piston 152 and the mould shifting oil cylinder 151, play sealing function.
One end of this shifting formwork piston rod 153 is fixedly connected with moving platen 130; The other end inserts in the mould shifting oil cylinder 151, be fixedly connected with shifting formwork piston 152, thereby so that shifting formwork piston rod 153 can be under the drive of shifting formwork piston 152, it is reciprocating to drive moving platen 130, realizes the actions such as die sinking, matched moulds.
As shown in the figure; this clamping apparatus is arranged on the centre position of moving platen 130; comprise Mode-locking oil cylinder 101, be arranged on locking piston 102, ends in the Mode-locking oil cylinder 101 insert in the Mode-locking oil cylinder 101 and the locking piston bar 103 that is fixedly connected with locking piston 102 1 ends and be arranged on locking piston 102 and locking piston bar 103 between core assembly etc., behind moving platen 130 matched moulds, provide clamp force.
This locking piston 102 is slidably disposed in the Mode-locking oil cylinder 101, and Mode-locking oil cylinder 101 is separated into the first locked mode oil pocket 104 and the second locked mode oil pocket 105; And the sidewall at locking piston 102 is provided with communicating passage 106, at axis direction central passage 107 is set.Be communicated with the first locked mode oil pocket 104 and the second locked mode oil pocket 105 by communicating passage 106 and central passage 107.
Certainly, the outer wall of this locking piston 102 can also arrange groove, in the groove and between the inwall of Mode-locking oil cylinder 101 sealing ring can also be set, and plays sealing effectiveness.
The first end of this locking piston bar 103 is fixedly connected on the place, centre position of moving platen 130; The second end inserts in the Mode-locking oil cylinder 101, and is fixedly connected with locking piston 102, drives locking piston 102 in Mode-locking oil cylinder 101 interior slips, thereby the output clamp force is carried out pressurize to moving platen 130.Because locking piston bar 103 is fixedly connected on the centre position of moving platen 130, its clamp force that provides is delivered to moving platen 130 uniformly, so that locked mode is more reliable.
Axis direction at locking piston bar 103 is provided with locking oil circuit 108 and release oil circuit 109, can access respectively hydraulic oil, and the pressure of locked mode or release is provided.As shown in the figure, this locking oil circuit 108 is arranged on the axial centre place of described locking piston bar 103, and this release oil circuit 109 is arranged in the locking oil circuit 108.Certainly, the form that arranges of locking oil circuit and release oil circuit also can be other form, for example two side by side oil circuit or locking oil circuit in the release oil circuit.
An end that inserts locking piston 102 at locking piston bar 103 also is provided with the spool support; be used for slidably installing for core assembly; and and core assembly between form locking oil pocket 110 and release oil pocket 111, promote the reciprocating motion of core assembly, realize the function of locked mode and release.
In the present embodiment, this spool support comprises that locking piston bar 103 inserts end and the installed part 112 in these locking piston bar 103 terminal fixed installations in the locking piston 102.The end of this locking piston bar 103 is provided with the first annular groove, and a side of installed part 112 close locking piston bars 103 is provided with the second annular groove.In the present embodiment, the radial depth of this first annular groove is less than the radial depth of this second annular groove; Certainly, the radial depth of the first annular groove and the second annular groove can be adjusted as required.
End at this locking piston bar 103 is provided with locking passage 113, is communicated with the first annular groove and locking oil circuit 108 by this locking passage 113; Be provided with solution lock access 114 at installed part 112, this is separated lock access 114 and is communicated with the second annular groove and release oil circuits 109.
This core assembly comprises valve seat 115, spool etc., is used for connected sum and seals the first locked mode oil pocket 104 and the second locked mode oil pocket 105.This valve seat 115 is arranged in the central passage 107 of locking piston 102, is provided with the valve base channel 116 that is communicated with locking piston 102 central passages 107 and the second locked mode oil pocket 105.As shown in the figure, this valve base channel 116 is roughly tapered channel, and the end that spool cooperates with valve seat 115 is similarly taper, plays the effect of automatic centering, sealing.
This spool comprises the sheathed spool main body 117 that is installed in spool support periphery of sliding, the inwall of this spool main body 117 is provided with the annular lip 118 of isolated the first annular groove and the second annular groove, in the both sides of annular lip 118 respectively and form locking oil pocket 110 and release oil pocket 111 between the first annular groove and the second annular groove, be communicated with the first annular groove and locking oil circuit 108 by locking passage 113 again, be communicated with the second annular groove and release oil circuit 109 by separating lock access 114.
Understandable, this spool main body 117 is provided with sealing ring with the position that the spool support joins, thereby plays sealing function.
Hydraulic oil promotes seal spool valve base channel 116, and the first locked mode oil pocket 104 and the second locked mode oil pocket 105 is separated through locking oil circuit 108, when locking passage 113 injects locking oil pocket 110, provides clamp force, as shown in Figure 2; When finishing processing (such as injection moulding, die casting, extruding etc.), hydraulic oil is through release oil circuit 109, when separating lock access 114 injection release oil pocket 111, promote the open valve base channel 116 of spool, so that the first locked mode oil pocket 104 and the second locked mode oil pocket 105 are communicated with, lay down clamp force; Adopt two oil channel structures to carry out locked mode and release, improved the reliability of equipment.
Further, this clamping mechanism also is provided with the pressure relief device that is communicated with the second locked mode oil pocket.This pressure relief device comprise be communicated with the second locked mode oil pocket and mould shifting oil cylinder 151 move back oil circuit 161 and control open and close move back oil circuit 161 move back oil circuit breaker assembly 162.When release, core assembly is opened valve base channel 116, the first locked mode oil pocket 104 and the second locked mode oil pocket 105 are communicated with, hydraulic oil promotes to move back oil circuit breaker assembly 162 and opens and move back oil circuit 161, hydraulic oil enters into mould shifting oil cylinder 151 through moving back oil circuit 161, can realize that oil is moved back in release fast, and can utilize the hydraulic oil that enters mould shifting oil cylinder 151 to help die sinking, improve the utilization ratio of the pressure of hydraulic oil.Only schematically drawn a pressure relief device among the figure, understandable, each mould shifting oil cylinder 151 connects one group of pressure relief device as required.
Shown in Fig. 3,4; the second embodiment of clamping mechanism of the present utility model; the difference of itself and the first embodiment is core assembly and spool support; other structures (such as mould shifting device, Mode-locking oil cylinder, locking piston bar, locking piston, pressure relief device etc.) are basic identical with the first embodiment, so do not give unnecessary details.
As shown in the figure, this spool support comprises the installed part 212 of the end that is fixedly installed on locking piston bar 203 insertion locking pistons, and this installed part 212 is provided with the first annular groove near a side of locking piston bar 203 ends.And spool comprises the spool main body 217 of perforation and the closure member 219 that is fixedly mounted on spool main body 217 outer ends.This spool main body 217 is the sheathed periphery that is installed in installed part 212 slidably, and is provided with annular lip 218 near a side of locking piston bar 203 ends, and these annular lip 218 sealing first ring grooves form release oil pocket 211; And formation locking oil pocket 210 between closure member 219 and the installed part 212.
And solution lock access 214 and locking passage 213 are arranged on the installed part 212.This solution lock access 214 is communicated to the first annular groove, thereby release oil pocket 211 is communicated with release oil circuit 209; This locking passage 213 is communicated to the outboard end of installed part 212, thereby locking oil pocket 210 is communicated with locking oil circuit 208.
Certainly, the position that joins at spool main body 217 and installed part 212 also is provided with sealing ring, plays sealing function.
Hydraulic oil promotes the seal spool valve base channel, and the first locked mode oil pocket 204 and the second locked mode oil pocket 205 is separated through locking oil circuit 208, when locking passage 213 injects locking oil pocket 210, provides clamp force, as shown in Figure 4; When finishing processing (such as injection moulding, die casting, extruding etc.), hydraulic oil is through release oil circuit 209, when separating lock access 214 injection release oil pocket 211, promote the open valve base channel of spool, so that the first locked mode oil pocket 204 and the second locked mode oil pocket 205 are communicated with, lay down clamp force.
Shown in Fig. 5,6, be the 3rd embodiment of clamping mechanism of the present utility model, the difference of itself and the second embodiment is that its closure member 319 extends protuberance 320 to the direction of installed part 312, corresponding, be provided with depressed part at installed part 312.These protuberance 320 sealings are slided and are inserted in the depressed part, form locking oil pocket 310 at protuberance 320 and depressed part, and are communicated with locking passage 313.
Further, the position that position, protuberance 320 and the depressed part that joins at spool main body and installed part 312 joins can also be provided with sealing ring, plays sealing function.
Further, this closure member 319 also is provided with balance channel 321, and be provided with balance oil pocket 322 between installed part 312 and the closure member 319, this balance oil pocket 322 is communicated to the second locked mode oil pocket by balance channel 321, thereby in the locked mode process, as shown in Figure 6, can utilize the hydraulic oil in the second locked mode oil pocket to enter balance oil pocket 322 through balance channel 321, promotion provides certain clamp force, improves the reliability of locked mode.
As shown in Figure 7, be the 4th embodiment of clamping mechanism of the present utility model, the difference of itself and above-described embodiment is core assembly, other structures and above-described embodiment are basic identical, so do not give unnecessary details.In the present embodiment, this core assembly comprise the end that is set in locking piston bar 403 spool main body 417, be set in the back-moving spring 417 of spool main body 417 peripheries and be arranged on valve seat 415 in the central passage 407 of locking piston 402.
In locking piston bar 403, be provided with locking oil circuit 408, between spool main body 417 and locking piston bar 403, form simultaneously locking oil pocket 410.This locking oil circuit 408 is communicated with locking oil pocket 410, introduces hydraulic oil from locking oil circuit 408, injects locking oil pocket 410, promoting spool main body 417 moves to valve seat 415 directions, utilize the communicating passage of spool main body 417 seal valve seats 415, realize pressurize, reliable and stable clamp force is provided.After finishing processing, lay down the hydraulic oil in the locking oil pocket 410, under the promotion of back-moving spring 417, spool main body 417 withdraws from valve base channel 416, so that the first locked mode oil pocket and the second locked mode oil pocket are communicated with, can lay down clamp force, and then can carry out the die sinking operation.
As shown in Figure 8, be the 5th embodiment of clamping mechanism of the present utility model, the difference of itself and the first embodiment is: adopt the release connecting rod to replace pressure relief device, other structures and the first embodiment are basic identical.This release connecting rod stretches into Mode-locking oil cylinder from a side relative with the locking piston bar, and is fixedly connected with valve seat.The axis direction of release connecting rod also be provided with the second Mode-locking oil cylinder isolated unload pumping cavity.Further, between release connecting rod and valve seat, also be provided with the interface channel that is communicated with valve base channel and the second locked mode oil pocket, so that the first locked mode oil pocket can be communicated with the second locked mode oil pocket.
When carrying out locked mode, can provide extra clamp force by injecting hydraulic oil to unloading pumping cavity, better guaranteed the stability of locked mode.And after finishing processing, can directly the hydraulic oil that unloads pumping cavity be laid down.Owing to reduced the volume of the second locked mode oil pocket, can better reduce the removal that unloads force feed, so that faster corresponding speed is arranged, improved efficient.
Understandable, this structure also can be applied in the structure of the 4th embodiment, and as shown in Figure 9, its structure is basic identical, so do not give unnecessary details.
As shown in figure 10, be the 6th embodiment of clamping mechanism of the present utility model, it is from the difference of above-described embodiment: locking piston 602, core assembly, spool support, locking piston bar etc. are all different.As shown in the figure; valve seat 615 and the locking piston 602 of core assembly are integrated; inwall at locking piston 602 shrinks formation to central passage 607 directions; and valve base channel 616 is arranged on the sidewall of locking piston 602, is communicated with central passage 607 and the second locked mode oil pocket 605 of locking piston 602.The end face that valve seat 615 engages with spool main body 617 is that the inclined-plane cooperates.
This spool support comprises one section of insertion locking piston 602 of locking piston bar 603 and the seal 612 installed at the end of locking piston 602.The seal 612 is fixedly connected with locking piston bar 603, locking piston 602, plays the effect that seals locking piston 602 ends, separates locking piston 602 inner spaces and the second locked mode oil pocket 605.As shown in the figure, the end of this locking piston bar 603 is provided with the first annular groove and seal 612 inboards are provided with the second annular groove; And the spool main body 617 of core assembly slidably is set in spool support periphery, and radially inwardly be provided with the annular lip 618 of isolated described the first annular groove and the second annular groove, thereby form respectively locking oil pocket 610 and release oil pocket 611 in the both sides of annular lip 618.Certainly, locking passage 613, separate lock access 614 and be arranged on cooperate with spool main body 617 a section of locking piston bar 603, locking oil pocket 610 and release oil pocket 611 are communicated to respectively locking oil circuit 608 and release oil circuit 609.
Hydraulic oil promotes seal spool valve base channel 616, and the first locked mode oil pocket 604 and the second locked mode oil pocket 605 is separated through locking oil circuit 608, when locking passage 613 injects locking oil pocket 610, and clamp force is provided; When finishing processing (such as injection moulding, die casting, extruding etc.), hydraulic oil is through release oil circuit 609, when separating lock access 614 injection release oil pocket 611, promote the open valve base channel 616 of spool, so that the first locked mode oil pocket 604 and the second locked mode oil pocket 605 are communicated with, lay down clamp force.
Should be understood that; for those of ordinary skills; can be according to the above description the in addition combination of the technical characterictic of improvement or conversion or each embodiment, and all these improve and conversion all should belong to the protection domain of the utility model claims.
Claims (10)
1. clamping mechanism, but the moving platen that comprises folding be connected with solid plate the described moving platen matched moulds of drive be connected with die sinking mould shifting device, be connected the clamping apparatus that clamp force is provided with described moving platen; It is characterized in that, described clamping apparatus comprises Mode-locking oil cylinder, first end is fixedly connected on the locking piston bar that described moving platen centre position is located, the second end inserts described Mode-locking oil cylinder, be arranged on the locking piston that is fixedly connected with described locking piston bar the second end in the described Mode-locking oil cylinder, and be arranged on the locked mode core assembly on the described locking piston bar;
Described locking piston is included in the communicating passage of its sidewall setting and the central passage that arranges at axis direction; Described locking piston is divided into the first locked mode oil pocket and the second locked mode oil pocket with described Mode-locking oil cylinder; and be communicated with described the first locked mode oil pocket and the second locked mode oil pocket by described communicating passage and central passage, and be communicated with or cut off described the first locked mode oil pocket and the second locked mode oil pocket by described locked mode core assembly control.
2. clamping mechanism according to claim 1 is characterized in that, described locking piston bar is provided with locking oil circuit and release oil circuit at axis direction; The end that described locking piston bar inserts described locking piston is provided with the spool support;
Described core assembly comprise be arranged on described locking piston central passage in valve seat and be arranged on described valve seat and the locking piston bar between spool; Described valve seat is provided with the valve base channel that is communicated with described locking piston central passage and the second locked mode oil pocket; Described spool seals coupling near an end of described valve seat mutually with described valve base channel;
Described spool is slidably mounted in described spool support, is provided with locking oil pocket and the release oil pocket that is isolated between described spool and described spool support; Described spool support is provided with and is communicated with described locking oil circuit and the locking passage of locking oil pocket and the solution lock access that is communicated with described release oil circuit and release oil pocket;
When hydraulic oil through described locking oil circuit, when the locking passage injects described locking oil pocket, promote the described valve base channel of described seal spool;
When hydraulic oil through described release oil circuit, when separating lock access and injecting described release oil pocket, promote the open described valve base channel of described spool.
3. clamping mechanism according to claim 2 is characterized in that, described spool support comprises that described locking piston bar inserts the end of described locking piston and at the hard-wired installed part of described end;
The end of described locking piston bar offers the first annular groove; Described installed part is provided with the second annular groove near a side of described locking piston bar;
Described spool comprises the spool main body of the described spool support periphery that is slidingly located in, and the inwall of described spool main body is provided with the annular lip of isolated described the first annular groove and the second annular groove; Form respectively described locking oil pocket and release oil pocket in the both sides of described annular lip;
Described locking channel setting is terminal at described locking piston bar, is communicated with described the first annular groove and locking oil circuit; Described release channel setting is communicated with described the second annular groove and release oil circuit on described installed part.
4. clamping mechanism according to claim 2 is characterized in that, described spool support comprises the installed part that is fixedly installed on described locking piston bar end, and described installed part is provided with the first annular groove near a side of described locking piston bar end;
Described spool comprises the perforation spool main body of the described installed part periphery that is slidingly located in and the closure member that is fixedly mounted on described spool main body outer ends;
Described spool main body is provided with annular lip near a side of described locking piston bar end, and described annular lip is sealed described first ring groove and formed described release oil pocket; Form described locking oil pocket between described closure member and the described installed part;
Described solution lock access and locking channel setting are on described installed part.
5. clamping mechanism according to claim 4 is characterized in that, described closure member extends protuberance to described installed part, and corresponding described installed part is provided with depressed part; The sealing of described protuberance is slided and is inserted in the described depressed part, forms described locking oil pocket at described protuberance and depressed part, and with described locking channel connection.
6. clamping mechanism according to claim 5 is characterized in that, described closure member also is provided with balance channel, also is provided with the balance oil pocket between described installed part and the described closure member, and described balance oil pocket is communicated with described the second locked mode oil pocket by described balance channel.
7. clamping mechanism according to claim 2 is characterized in that, described valve seat and described locking piston are one-body molded, shrinks to the central passage direction at the inwall of described locking piston to form; Described valve base channel is arranged on the sidewall of described locking piston;
Described spool support comprise described locking piston bar the described locking piston of insertion end and at the described terminal seal of installing;
The end of described locking piston bar is provided with the first annular groove;
Described seal separates described locking piston inner space and described the second locked mode oil pocket, and is provided with the second annular groove in the inboard of described seal;
Described spool comprises the spool main body that is set in described spool support periphery, described spool main body radially inwardly is provided with the annular lip of isolated described the first annular groove and the second annular groove, forms respectively described locking oil pocket and release oil pocket in the both sides of described annular lip.
8. clamping mechanism according to claim 7 is characterized in that, the second end of described locking piston bar inserts and passes described locking piston, and the second end of described locking piston bar passes described Mode-locking oil cylinder; Described locking oil circuit and release oil circuit are arranged on described locking piston bar and pass in a section of described locking piston.
9. each described clamping mechanism is characterized in that according to claim 2-8, and described clamping mechanism also comprises the release connecting rod that stretches into described Mode-locking oil cylinder and be fixedly connected with described valve seat from a side relative with described locking piston bar; Described release connecting rod be provided with described the second locked mode oil pocket isolated unload pumping cavity;
Be provided with the interface channel that is communicated with described valve base channel and described the second locked mode oil pocket between described release connecting rod and the described valve seat.
10. clamping mechanism according to claim 1, it is characterized in that, described mould shifting device comprises at least two groups, be installed in respectively the diagonal position place of described moving platen, each described mould shifting device comprises mould shifting oil cylinder, be arranged on shifting formwork piston in the described mould shifting oil cylinder and an end is fixedly connected with the other end and inserts the shifting formwork piston rod that described mould shifting oil cylinder is fixedly connected with described shifting formwork piston with described moving platen;
Described clamping mechanism also is provided with the pressure relief device that is communicated with described the second locked mode oil pocket; Described pressure relief device comprise be communicated with described the second locked mode oil pocket and mould shifting oil cylinder move back oil circuit and control open and close described move back oil circuit move back the oil circuit breaker assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220194260 CN202685242U (en) | 2012-04-28 | 2012-04-28 | Clamping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220194260 CN202685242U (en) | 2012-04-28 | 2012-04-28 | Clamping mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202685242U true CN202685242U (en) | 2013-01-23 |
Family
ID=47540909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220194260 Expired - Lifetime CN202685242U (en) | 2012-04-28 | 2012-04-28 | Clamping mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202685242U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103660358A (en) * | 2013-11-28 | 2014-03-26 | 苏州凯尔博精密机械有限公司 | Automatic fast mould locking device |
| CN103775424A (en) * | 2014-01-21 | 2014-05-07 | 广东正茂精机有限公司 | High-pressure mode locking oil tank for injection molding machine |
| CN104226958A (en) * | 2014-08-07 | 2014-12-24 | 江苏佳晨华科机械技术研究院有限公司 | Two-plate high-speed pressure die-casting machine |
| CN105584011A (en) * | 2015-12-31 | 2016-05-18 | 德科摩橡塑科技(东莞)有限公司 | Upward motion clamping block type pressurizing mold locking mechanism |
| CN105619588A (en) * | 2016-01-20 | 2016-06-01 | 广东科达洁能股份有限公司 | Automatic oil-pressure mold locking device |
| CN106965393A (en) * | 2017-04-05 | 2017-07-21 | 宁波市海达塑料机械有限公司 | A kind of four cylinder directly locks the inner circulation structure of injection moulding machine mode-locking oil cylinder |
-
2012
- 2012-04-28 CN CN 201220194260 patent/CN202685242U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103660358A (en) * | 2013-11-28 | 2014-03-26 | 苏州凯尔博精密机械有限公司 | Automatic fast mould locking device |
| CN103660358B (en) * | 2013-11-28 | 2015-08-05 | 苏州凯尔博精密机械有限公司 | A kind of rapid mould clamping device automatically |
| CN103775424A (en) * | 2014-01-21 | 2014-05-07 | 广东正茂精机有限公司 | High-pressure mode locking oil tank for injection molding machine |
| CN104226958A (en) * | 2014-08-07 | 2014-12-24 | 江苏佳晨华科机械技术研究院有限公司 | Two-plate high-speed pressure die-casting machine |
| CN104226958B (en) * | 2014-08-07 | 2016-03-02 | 江苏佳晨华科机械技术研究院有限公司 | A kind of two-plate high speed die casting machine |
| CN105584011A (en) * | 2015-12-31 | 2016-05-18 | 德科摩橡塑科技(东莞)有限公司 | Upward motion clamping block type pressurizing mold locking mechanism |
| CN105619588A (en) * | 2016-01-20 | 2016-06-01 | 广东科达洁能股份有限公司 | Automatic oil-pressure mold locking device |
| CN106965393A (en) * | 2017-04-05 | 2017-07-21 | 宁波市海达塑料机械有限公司 | A kind of four cylinder directly locks the inner circulation structure of injection moulding machine mode-locking oil cylinder |
| CN106965393B (en) * | 2017-04-05 | 2019-02-22 | 宁波市海达塑料机械有限公司 | A kind of four cylinder directly locks the inner circulation structure of injection moulding machine mode-locking oil cylinder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202685242U (en) | Clamping mechanism | |
| CN102225611B (en) | Mechanism capable of pulling core in two directions in once die opening | |
| CN103395172A (en) | Two-colour mould with angle pin and slider mechanism and application method thereof | |
| CN205310732U (en) | Novel two board -like mode lockings device | |
| CN103878908A (en) | Supplementary positive-displacement-type isometric displacement internal-circulation mold clamping device | |
| CN205148829U (en) | Injection molding machine mode locking hydro -cylinder | |
| CN202965121U (en) | Vertical-compression-type mould clamping mechanism for injection molding machines and die casting machines | |
| CN218111614U (en) | Injection molding machine mold pushing oil cylinder with pressurization locking function | |
| CN203726782U (en) | Internal circulation clamping mechanism for injection molding machine | |
| CN202212563U (en) | Extrusion die casting die | |
| CN102601944A (en) | Forced demolding device for molding plastic product | |
| CN204382610U (en) | Supplementary positive displacements etc. are accommodating changes clamping apparatus | |
| CN202572722U (en) | Mode-locking device | |
| CN203409967U (en) | Two-color die with inclined guide pillar and sliding block mechanism | |
| CN217597734U (en) | Inner core-pulling mechanism of injection mold | |
| CN211221746U (en) | Double-color injection mold | |
| CN201346841Y (en) | Hydraulic insurance circuit of large injection molding machine | |
| CN203726783U (en) | Mould locking oil cylinder of injection molding machine | |
| KR20150070526A (en) | Rotor molding apparatus having lever-controlled vent function, rotor manufactured using the same and rotor molding method | |
| CN204451116U (en) | One etc. are accommodating changes internal recycling vertical pressing formula clamping apparatus | |
| CN110549548A (en) | Double-color injection mold and molding method | |
| CN202702555U (en) | Double-cylinder pressurizing mold closing mechanism | |
| CN206912219U (en) | Casting mould | |
| CN202528403U (en) | Mold locking mechanism of injection molding machine | |
| CN202200469U (en) | Oblique core-pulling composite slider device of oblique crotch outer edge product injection mould |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170508 Address after: 523000 Guangdong province Dongguan City Hengli Town shansha Industrial Zone Patentee after: GUANGDONG BLOOMACHINE CO., LTD. Address before: Two street Daliang District Shunde town Kim garden coconut 528300 Guangdong city of Foshan province No. 807 Patentee before: Huang Buming |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130123 |