CN103813871B - Ejection device for molding machine - Google Patents
Ejection device for molding machine Download PDFInfo
- Publication number
- CN103813871B CN103813871B CN201180073391.4A CN201180073391A CN103813871B CN 103813871 B CN103813871 B CN 103813871B CN 201180073391 A CN201180073391 A CN 201180073391A CN 103813871 B CN103813871 B CN 103813871B
- Authority
- CN
- China
- Prior art keywords
- mentioned
- head board
- motor
- pin
- push
- 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 - Fee Related
Links
- 238000000465 moulding Methods 0.000 title abstract 2
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- 230000033001 locomotion Effects 0.000 claims abstract description 14
- 238000001125 extrusion Methods 0.000 abstract 10
- 238000009434 installation Methods 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 6
- 238000004512 die casting Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 230000005520 electrodynamics Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
- B22D17/2236—Equipment for loosening or ejecting castings from dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
- B29C2045/4036—Ejector constructions; Ejector operating mechanisms driven by a screw and nut mechanism
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Provided is an ejection device, which has excellent maintainability, for a molding machine. The ejection device is constituted from: a guide rail (8) affixed to the a movable die plate (7); an extrusion plate (5) that is guided by the guide rail (8) and moves backward and forward; extrusion pins (6) affixed to the extrusion plate (5); an electric motor (1) for ejection that is a drive source for the extrusion plate (5); ball screw mechanisms (2, 3) that convert the rotational motion of the motor (1) to the back and forth movement of the extrusion plate (5); and power transmission mechanisms (14, 15, 16) that transmit the rotational motion of the motor (1) to the rotating parts (2) of the ball screw mechanisms. The motor (1), power transmission mechanisms (14, 15, 16), and direct advance parts (2) of the ball screw mechanisms are affixed to the extrusion plate (5), and one end of each extrusion pin (6) is fastened by a nut (21) on the back surface side of the extrusion plate (5) when viewed from the movable die plate (7). The guide rail (8) is set to a length in which the leading end thereof does not protrude from the back surface side of the extrusion plate (5) when the extrusion plate (5) is moved back to the rearmost limit.
Description
Technical field
The present invention relates to the ejector apparatus of the formed products that the forming machines such as die casting machine possess, particularly make push-off pin relative to the unit of the dismounting operation facilitation of head board.
Background technology
In the past, as the ejector apparatus of the formed products that die casting machine etc. possesses, there will be a known following electrodynamic type device: use ball screw framework to be converted to the straight reciprocating motion of head board the rotation of ejection electro-motor, to the push-off pin of one end fastening nuts in head board, in official hour, carry out linear reciprocation driving.Push-off pin, owing to easily damaging because of wearing and tearing, is the parts needing to change more continually, so requirement is easy relative to the dismounting operation of head board.
The application applicant formerly proposes as the scheme (for example, referring to patent document 1) shown in Fig. 4 to Fig. 6 of this ejector apparatus.As shown in these figures, the ejector apparatus of this example mainly comprises: ejection electro-motor 101; By Timing Belt 102 by the belt wheel 103 of ejection with electro-motor 101 rotary actuation; The thread spindle 104 rotated integratedly with belt wheel 103; Load the movable template 105 of not shown fixed side mold; To screw togather with thread spindle 104 and along with the rotation of thread spindle 104 is to the nut body 106 close to the direction of movable template 105 or the direction straight reciprocating motion away from movable template 105; The head board 107 linked integratedly with nut body 106; Threadingly axle 104 guides the guide rail 108 of head board 107; And use nut 109 to be anchored on the push-off pin 110 of head board 107.Rotatably receive belt wheel 103 in the inside of band hub 112 by bearing 111, as shown in Figure 4, use bolt 114 at the fastening ejection electro-motor 101 in leading section of the outwardly projecting motor mount plate 113 from band hub 112.Namely, the operator of the forming machine opposition side of fore side in order to form operation and stand in addition, in the example in fig. 4, ejection electro-motor 101 is configured at the rear side of ejector apparatus.
As shown in Fig. 4 and Fig. 6, movable template 105 being integrally formed with the toggle link installation portion 115 of the one end for linking elbow-bar mechanism T, this toggle link installation portion 115 using bolt 117 to be provided with and is formed at the axle sleeve 116 being with hub 112 outer surface.In addition, as shown in Figure 6, guide rail 108 one end uses bolt 118 to be anchored on movable template 105, and the other end is outstanding to the arranging side of head board 107.The total length of guide rail 108 is, making head board 107 and push-off pin 110 retreat to when retreating the limit, and the length that the front end of guide rail 108 is not given prominence to from the rear side of head board 107.
Therefore, according to the ejector apparatus that the application applicant formerly proposes, by making head board 107 and push-off pin 110 retreat to retreating the limit, thus can the leading section of guide rail 108 be imported in head board 107, so guide rail 108 ground can not be hindered to carry out the dismounting operation of nut 109.Therefore, even if retreat to when retreating the limit when making head board 107 and push-off pin 110, the existing ejector apparatus outstanding from the surface of head board 107 compared to the leading section of guide rail 108 (such as, with reference to patent document 2), push-off pin 110 also can be made relative to the dismounting operation facilitation of head board 107.
Prior art document
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2010-240676 publication
Patent document 2: Japanese Unexamined Patent Publication 2006-315072 publication
Summary of the invention
Invent problem to be solved
But the ejector apparatus that the application applicant formerly proposes is, by axle sleeve 116, band hub 112 is fixed on structure on toggle link installation portion 115, so axle sleeve 116 becomes obstruction when the dismounting operation of nut 109.In addition, the scheme of the ejector apparatus that the application applicant formerly proposes, it is fixed band hub 112 on toggle link installation portion 115, and make head board 107 relative to the structure of band hub 112 forward-reverse, so when making head board 107 and push-off pin 110 retreat to the retrogressing limit, space between head board 107 and band hub 112 becomes the narrowest, and the operation of instrument etc. becomes difficulty.Therefore, in order to the dismounting operation of the dismounting and push-off pin 110 of carrying out nut 109 efficiently, also has the leeway of improvement.
The present invention completes in view of the actual conditions of prior art, its object is to the ejector apparatus of the forming machine providing maintainability good.
For the method for dealing with problems
For solving above-mentioned problem, the present invention is the ejector apparatus of forming machine, possesses: the movable template of loading drawer at movable side mould, be fixed on the guide rail in this movable template, the head board of forward-reverse by this rail guidance, be fixed on the push-off pin on this head board, as the ejection electro-motor of the drive source of above-mentioned head board and above-mentioned push-off pin, the rotary motion of this ejection electro-motor is converted to the ball screw framework of the forward-reverse motion of above-mentioned head board and above-mentioned push-off pin, and the rotary motion of above-mentioned ejection electro-motor is passed to the Poewr transmission mechanism of the rotating part of above-mentioned ball screw framework, the feature of the ejector apparatus of above-mentioned forming machine is, by above-mentioned ejection electro-motor, the straight portion of above-mentioned Poewr transmission mechanism and above-mentioned ball screw framework is fixed on above-mentioned head board, and observe from above-mentioned movable template side, by bolt or nut, one end of above-mentioned push-off pin is fastened on the rear side of above-mentioned head board, and by the length setting of above-mentioned guide rail be, retreat to when retreating the limit making above-mentioned head board and above-mentioned push-off pin, the leading section of above-mentioned guide rail is not given prominence to from the rear side of above-mentioned head board.
According to this formation, due to the ejection power unit be made up of the straight portion of ejection electro-motor, Poewr transmission mechanism and ball screw framework is fixed on head board, so have nothing to do with the forward-reverse position of head board and push-off pin, certain working space can be set between these ejection power unit and head boards.In addition, therefore, it is possible to omit for namely a part for Poewr transmission mechanism to be fixed on the axle sleeve on toggle link installation portion with hub.Have again, due to by the length setting of guide rail for making head board and push-off pin retreat to when retreating the limit, the leading section of guide rail is not given prominence to from the rear side of head board, so by making head board and push-off pin retreat near the retrogressing limit or its, thus guide rail can be made with not becoming obstruction not carry out the dismounting operation of push-off pin.Therefore, it is possible to easily carry out the dismounting operation of push-off pin, and the maintainability of ejector apparatus can be improved.
In addition, the present invention is in the ejector apparatus of the forming machine of above-mentioned formation, it is characterized in that, by the rotary motion of above-mentioned ejection electro-motor, the nut body of above-mentioned ball screw framework is passed to by Timing Belt and belt wheel, and will rotatably keep the nut body holding member of above-mentioned nut body, be fixed on above-mentioned head board.
According to this formation, due to can by the nut body of ejection electro-motor, Timing Belt, belt wheel, ball screw framework and nut body holding member and head board forward-reverse integratedly, so have nothing to do with the forward-reverse position of head board, certain working space can be kept between the push-off pin fastening surface of head board and nut body, the dismounting operation of push-off pin can be made to become easy.
In addition, the present invention, in the ejector apparatus of the forming machine of above-mentioned formation, is characterized in that, by the above-mentioned ejection fore side of electronic motor configurations at forming machine.
In the rear side of forming machine, owing to arranging various accessory class or pipe arrangement etc., so be difficult to configuration ejection electro-motor, if configured unreasonably, then the maintainability of accessory class or pipe arrangement etc. is deteriorated.To this, even if also less owing to being unworthy of establishing part class or pipe arrangement etc. at the fore side of forming machine or arranging its quantity, so ejection electro-motor easily can be configured, the maintainability of accessory class or pipe arrangement etc. also can be improved.
The present invention has following effect.
The ejector apparatus of forming machine of the present invention, fixing by ejection electro-motor on head board, the ejection power unit of the straight portion formation of Poewr transmission mechanism and ball screw framework, and observe from movable template side, by bolt or nut, one end of push-off pin is fastened on the rear side of head board, and by the length setting of guide rail be, retreat to when retreating the limit making head board and push-off pin, the leading section of guide rail is not given prominence to from the rear side of head board, so the dismounting working space of push-off pin is larger, and around it, do not arrange the parts that can become operation and hinder.Therefore, it is possible to make the dismounting operation of push-off pin become easy, improve the maintainability of ejector apparatus.
Accompanying drawing explanation
Fig. 1 is the front view observed from the head board side of the ejector apparatus of embodiment.
Fig. 2 is the top view of the broken section of the ejector apparatus of embodiment.
Fig. 3 is the side view of the broken section of the ejector apparatus of embodiment.
Fig. 4 is the front view observed from the head board side of the ejector apparatus of conventional example.
Fig. 5 is the top view of the broken section of the ejector apparatus of conventional example.
Fig. 6 is the side view of the broken section of the ejector apparatus of conventional example.
Detailed description of the invention
Below, use Fig. 1 to Fig. 3 that the embodiment of ejector apparatus of the present invention is described.As shown in these figures, the ejector apparatus of this example mainly comprises: ejection electro-motor 1; By the nut body 2 of ejection with the ball screw framework of electro-motor 1 rotary actuation; The thread spindle 3 of the ball screw framework that nut body 2 screws togather; The rotatably nut body holding member 4 of retention nut body 2; To be fixed on nut body holding member 4 and with nut body 2 and the nut body holding member 4 together head board 5 that drives of forward-reverse; Be fixed on the push-off pin 6 on head board 5; Be loaded into the movable template 7 of not shown drawer at movable side mould; Be fixed on the head board guiding guide rail 8 in movable template 7; And the rotary motion of ejection electro-motor 1 is passed to the Poewr transmission mechanism 9 of nut body 2.In addition, the toggle link installation portion that the Reference numeral 10 in figure represents the cover of Poewr transmission mechanism 9, T represents elbow-bar mechanism, 7a represents movable template 7.
As ejection electro-motor 1, in order to the taking-up forming product accurately controls, electric servomotor can be used.As shown in Figure 2, ejection electro-motor 1 uses bolt 13 to be installed on one end to use bolt 11 to be fixed on the leading section of the motor mount plate 12 on nut body holding member 4.In addition, in this example, ejection electro-motor 1 is configured at the fore side of forming machine.According to this formation, ejection electro-motor 1 ground can not be hindered at the various accessory class of the rear side centralized configuration of forming machine or pipe arrangement etc., so the configuration of these accessory class or pipe arrangements etc. can be made and safeguard facilitation.In addition, in this example, although motor mount plate 12 is flatly stretched out from nut body holding member 4, it can certainly be made to tilt.
As shown in Figure 1 and Figure 2, Poewr transmission mechanism 9 comprises: the small pulley 14 being installed on the output shaft of ejection electro-motor 1; Bolt 15a is used to be installed on the large belt wheel 15 of nut body 2; And the Timing Belt 16 hung on this each belt wheel 14,15.
As shown in FIG. 2 and 3, nut body 2 is rotatably held in nut body holding member 4 by swivel bearing 17, and nut body holding member 4 uses bolt 18 to be fixed on head board 5.In addition, push-off pin 6 runs through the push-off pin through hole 19 be opened on head board 5 and the push-off pin through hole 20 being opened in movable template 7, observes from movable template 7, and above-mentioned push-off pin 6 uses nut 21 to be fixed on head board 5 in the rear side of head board 5.Further, one end of the thread spindle 3 of ball screw framework uses bolt 22 to be fixed in movable template 7, for outstanding to head board 5 side with the threaded portion 3a that nut body 2 screws togather.In addition, one end of guide rail 8 uses bolt 23 to be fixed in movable template 7, for guiding the leading section of head board 5 outstanding to head board 5 side.In addition, as shown in Figure 2, the total length of guide rail 8 for making head board 5 and push-off pin 6 retreat to when retreating the limit, the length that the leading section of guide rail 8 is not given prominence to from the rear side of head board.
Therefore, the ejector apparatus of this example, after rotary actuation ejection is with electro-motor 1, ejection electro-motor 1, nut body 2, nut body holding member 4, head board 5, push-off pin 6 and Poewr transmission mechanism 9 one-tenth are integrated, to the direction close to movable template 7 or move away from the direction of movable template 7.Therefore, have nothing to do with the forward-reverse position of nut body 2, form certain working space all the time at the rear of the nut 21 be fixed on head board 5 by push-off pin 6.In addition, owing to being along with the rotary actuation of ejection electro-motor 1 structure of nut body holding member 4 forward-reverse, so do not arrange the parts such as rib for hold-down nut body holding member 4 around nut 21, also broader working space can be formed around nut 21 according to this point.Have again, owing to limiting the total length of guide rail 8, so by making head board 5 and push-off pin 6 retreat to retreating the limit, thus the leading section of guide rail 8 can be made not give prominence to from the rear side of head board 5, also can guarantee broad working space around nut 21 according to this point.Therefore, it is possible to make the dismounting operation of nut 21 and push-off pin 6 relative to the dismounting operation facilitation of head board 5.
In addition, in the above-described embodiment, although adopt the structure of the nut body 2 of rotary actuation ball screw framework, replace this structure, also can adopt the structure of the thread spindle 3 of rotary actuation ball screw framework.
In addition, in the above-described embodiment, although use nut 21 to be fixed on head board 5 by push-off pin 6, bolt also can be used to be fixed.
The present invention has following utilizability in production.
The present invention can be used in taking out formed products from the forming machine such as injection molding machine or die casting machine.
The explanation of symbol
1 ejection electro-motor
2 nut bodies
3 thread spindles
3a threaded portion
4 nut body holding members
5 head boards
6 push-off pins
7 movable templates
7a toggle link installation portion
8 guide rails
9 Poewr transmission mechanisms
10 covers
11,13,15a, 18,22,23 bolts
12 motor mount plate
14 small pulleys
15 large belt wheels
16 Timing Belts
17 swivel bearings
19,20 push-off pin through holes
21 nuts
T elbow-bar mechanism
Claims (3)
1. an ejector apparatus for forming machine, possesses: the movable template of loading drawer at movable side mould; Be fixed on the guide rail in this movable template; The head board of forward-reverse by this rail guidance; Be fixed on the push-off pin on this head board; As the ejection electro-motor of the drive source of above-mentioned head board and above-mentioned push-off pin; The rotary motion of this ejection electro-motor is converted to the ball screw framework of the forward-reverse motion of above-mentioned head board and above-mentioned push-off pin; And the rotary motion of above-mentioned ejection electro-motor is passed to the Poewr transmission mechanism of the rotating part of above-mentioned ball screw framework,
The feature of the ejector apparatus of above-mentioned forming machine is,
The straight portion of above-mentioned ejection electro-motor, above-mentioned Poewr transmission mechanism and above-mentioned ball screw framework is fixed on above-mentioned head board, and observe from above-mentioned movable template side, by bolt or nut, one end of above-mentioned push-off pin is fastened on the rear side of above-mentioned head board, and by the length setting of above-mentioned guide rail be, when making above-mentioned head board and above-mentioned push-off pin retreat to the retrogressing limit, the leading section of above-mentioned guide rail is not given prominence to from the rear side of above-mentioned head board.
2. the ejector apparatus of forming machine according to claim 1, is characterized in that,
By the rotary motion of above-mentioned ejection electro-motor, passed to the nut body of above-mentioned ball screw framework by Timing Belt and belt wheel, and will rotatably keep the nut body holding member of above-mentioned nut body, be fixed on above-mentioned head board.
3. the ejector apparatus of the forming machine according to any one of claim 1 and claim 2, is characterized in that,
By the above-mentioned ejection fore side of electronic motor configurations at forming machine.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2011/070855 WO2013038501A1 (en) | 2011-09-13 | 2011-09-13 | Ejection device for molding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103813871A CN103813871A (en) | 2014-05-21 |
| CN103813871B true CN103813871B (en) | 2015-06-17 |
Family
ID=47882764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180073391.4A Expired - Fee Related CN103813871B (en) | 2011-09-13 | 2011-09-13 | Ejection device for molding machine |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5824520B2 (en) |
| CN (1) | CN103813871B (en) |
| WO (1) | WO2013038501A1 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000301580A (en) * | 1999-04-22 | 2000-10-31 | Meiki Co Ltd | Ejector device for injection molding machine |
| JP2001121588A (en) * | 1999-10-27 | 2001-05-08 | Toshiba Mach Co Ltd | Ejector device for injection molding machine |
| JP2003145592A (en) * | 2001-11-16 | 2003-05-20 | Sumitomo Heavy Ind Ltd | Ejector device |
| WO2009087721A1 (en) * | 2008-01-10 | 2009-07-16 | Pascal Engineering Corporation | Die-cast machine |
| CN101722633A (en) * | 2008-10-25 | 2010-06-09 | 蔡业 | Automatic fetching device of injection molding machine |
| JP2010240676A (en) * | 2009-04-02 | 2010-10-28 | Toyo Mach & Metal Co Ltd | Ejection device of molding machine |
-
2011
- 2011-09-13 JP JP2013533381A patent/JP5824520B2/en not_active Expired - Fee Related
- 2011-09-13 CN CN201180073391.4A patent/CN103813871B/en not_active Expired - Fee Related
- 2011-09-13 WO PCT/JP2011/070855 patent/WO2013038501A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000301580A (en) * | 1999-04-22 | 2000-10-31 | Meiki Co Ltd | Ejector device for injection molding machine |
| JP2001121588A (en) * | 1999-10-27 | 2001-05-08 | Toshiba Mach Co Ltd | Ejector device for injection molding machine |
| JP2003145592A (en) * | 2001-11-16 | 2003-05-20 | Sumitomo Heavy Ind Ltd | Ejector device |
| WO2009087721A1 (en) * | 2008-01-10 | 2009-07-16 | Pascal Engineering Corporation | Die-cast machine |
| CN101722633A (en) * | 2008-10-25 | 2010-06-09 | 蔡业 | Automatic fetching device of injection molding machine |
| JP2010240676A (en) * | 2009-04-02 | 2010-10-28 | Toyo Mach & Metal Co Ltd | Ejection device of molding machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2013038501A1 (en) | 2015-03-23 |
| JP5824520B2 (en) | 2015-11-25 |
| CN103813871A (en) | 2014-05-21 |
| WO2013038501A1 (en) | 2013-03-21 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
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