WO1993019922A1 - Injection molding machine - Google Patents
Injection molding machine Download PDFInfo
- Publication number
- WO1993019922A1 WO1993019922A1 PCT/JP1993/000349 JP9300349W WO9319922A1 WO 1993019922 A1 WO1993019922 A1 WO 1993019922A1 JP 9300349 W JP9300349 W JP 9300349W WO 9319922 A1 WO9319922 A1 WO 9319922A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- unit
- base
- injection molding
- ball screw
- molding machine
- Prior art date
Links
Classifications
-
- 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
-
- 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
- B29C45/1761—Means for guiding movable mould supports or injection units on the machine base or frame; Machine bases or frames
-
- 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
- B29C45/1777—Nozzle touch mechanism
-
- 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
- B29C45/20—Injection nozzles
Definitions
- the present invention relates to an improvement of a unit base and a nozzle mechanism of an injection unit in an injection molding machine.
- a mold clamping unit and an injection unit are arranged opposite to each other on a base, and the injection unit is opposed to the mold clamping unit for the purpose of releasing nozzles and releasing the same.
- the injection unit is placed on a unit table that can move back and forth on the base.
- the unit table has a front support portion and a rear support portion, and conventionally, both portions are integrally formed or connected by a plurality of frame members.
- This joint receives compressive or tensile force when the nozzle of the injection unit is in contact with the nozzle, so it must have a structure that can withstand this.
- various devices and cables are concentrated at this point. Therefore, a structure as simple as possible is desired. Also, various cables are connected to the injection unit and are moved back and forth with the movement of the injection unit, so they must be arranged so as not to interfere with each other or collide with other members. No.
- the nozzle contact mechanism is usually equipped with a ball screw and a nut, and the ball screw is screwed into a ball nut fixed to the unit base of the injection unit.
- the injection unit is moved back and forth by driving the same.
- the ball screw nut is fully protected by being covered with an elastic force bar, but must be removed for inspection and replacement.
- the nozzle of the injection unit may be manually touched. It is necessary to know the level of the pressure even in the rough spike.
- the nozzle unit of the injection unit is controlled by the position of the dog with respect to the limit switch and the proximity switch, so the display unit under the control of the NC unit indicates the position of the injection unit. It is difficult to display continuously by intuitive means, such as numerical values, or simply letting you know that you have reached a certain point It is. For this reason, it is difficult to grasp the relative positional relationship of the injection units in a practical manner, and conventional injection molding machines still have inconvenient aspects.
- the present invention first provides a mold clamping unit and an injection unit facing each other on a base, and the injection unit has a front-rear direction on a base by a nozzle mechanism.
- Injection molding machine mounted on a unit table that can be moved to the outside, where the unit table has a front support section and a rear support section, and these are connected by one connecting pipe arranged in the front-rear direction. Provided structure.
- a penetrating passage that penetrates in a longitudinal direction is formed on the unit table by aligning the axis of the connecting pipe with the axis of the connecting pipe, and the ball nut of the nozzle mechanism is formed by aligning the axis with the axis of the penetrating path.
- the front and rear ball screws screwed to this are attached to the unit base, and the flange diameter of the ball nut is made smaller than the diameter of the connecting pipe to make the ball screw. It is possible to pass the same nut through the connecting pipe and pull it out behind the unit stand.
- a bearing tube arranged in alignment with the axis inside the connecting pipe is attached to the unit base, and a rear end of the ball screw of the nozzle-touch mechanism is attached to the bearing tube. It is inserted and supported movably in the front-back direction.
- a bush whose outer diameter is substantially equal to the inner diameter of the bearing tube is attached to the rear end of the ball screw inserted into the bearing tube.
- the bearing tube is supported by a bearing body slidably disposed inside and outside the connecting pipe before and after the connecting pipe, and is attached to a rear end side of the bearing tube. Is fixed to a stay that integrally projects from the rear support plate by bolt nut connection. By releasing the bolt nut connection between the mounting plate and the stay, the pole screw-nut is fixed. It is possible to pull out to the back of the unit through the connecting pipe.
- the present invention provides an injection molding machine, wherein a mold clamping unit and an injection unit are provided on a base so as to face each other, and the injection unit is mounted on a unit table movable in the front-rear direction on the base.
- the cable for the injection unit is divided into the cable for communication and the power for the injection unit.
- Each cable is held in each cable support device, and is placed on the base under the unit stand.
- the mold clamping unit and the injection unit are provided on the base so as to face each other, and the injection unit is moved forward and backward by the nozzle touch mechanism on the base.
- New two sheets An injection molding machine mounted on a unit table that can move in the opposite direction, wherein a spring receiving portion is provided on the injection unit, and a pusher is provided movably forward and backward at an interval behind the injection unit.
- a spring for a nozzle and a nut is mounted between the sho plate and the receiving portion, and a ball screw and a nut of the ball screw nut arranged in the front-rear direction in the nozzle and the mechanism of the nozzle.
- a ball screw that contributes to the receiving part is screwed into this, and an indicator rod with one end fixed to the pressing plate has a pointer at the tip provided on the unit base cover. It is placed facing the window.
- the connecting pipe strongly and simply connects the front support portion and the rear support portion of the unit table.
- the arrangement of the through-hole and the ball screw-nut of the nozzle mechanism with the axis ⁇ aligned with the axis of the connecting pipe allows the ball screw and the nut to be pulled out rearward. ing.
- the rear end of the ball screw is inserted into the bearing tube to prevent the ball screw from rolling around.
- the cable support device protects the cable and prevents interference between the communication line and the power line with other members.
- the position of the injection unit or the pressure of the sunset is made visible to the operator by the pointer in the display window.
- FIG. 1 is a front view partially showing a mold clamping unit and an ejection unit in an injection molding machine of the present invention in a sectional view.
- FIG. 2 is a plan view of a base and a unit table on which the injection unit on the upper surface is movably mounted in the injection molding machine of the present invention.
- FIG. 3 is a plan view of a main part showing a cable support device for storing a communication * power cable, which is disposed on the upper surface of a base in the injection molding machine of the present invention.
- FIG. 4 is a partial front view showing a main part of a communication and power cable connected from the base to the injection unit side in the injection molding machine of the present invention
- FIG. 5 is a perspective view of a main part showing that a pointer for displaying the touch pressure is attached to the nozzle touch mechanism in the injection molding machine of the present invention
- FIG. 6 is a front view schematically showing that the mold clamping unit and the ejection unit are placed on a base in the injection molding machine of the present invention.
- An injection molding machine 1 (FIG. 6) includes a mold clamping unit 3 and an injection unit 4 on a base 2 facing each other.
- the injection unit 4 is mounted on a unit base 5 (FIGS. 1 and 2) that can move in the front-rear direction on the upper surface of the base 2, and can be moved back and forth by a nozzle touch mechanism 6.
- Reference numerals 7 (a, b) are rails, two of which are arranged on the upper surface of the base 2 in parallel in the front-rear direction.
- Injection unit 4 is a cylinder case.
- a nozzle 9 is provided at the tip of the assembly 8, and this portion is brought into contact with a mold sblue attached to the mold clamping unit 3 to perform a nozzle setting.
- a unit table cover 10 is attached to the outer periphery of the unit table 5.
- the unit base 5 includes a front support portion 11 and a rear support portion 12, and both portions are connected by a connection pipe 13.
- the connecting pipe 13 is to be fixed with bolts to the flanges 14 (a, b) fixed to the rain end with relatively thick steel pipes to the front support part 11 and the rear support part 12 This connects the two support parts.
- the left and right sides of the front support portion 11 and the rear support portion 12 are respectively mounted on the rails 7 (a, b) of the base 2 so that the unit base 5 as a whole is the base 2 Can be moved back and forth on the screen.
- the front support portion 11 has a pivot receiving hole 15 for swiveling the injection unit 4 at the center in the width direction of the upper surface, and a spring receiving plate 16 is mounted on the front side.
- the spring receiving plate 16 has a hole in the center thereof that penetrates in the front-rear direction.
- a pressing plate 17 having a hole at the center is formed separately and movably in the front-rear direction.
- a stay 18 (FIG. 1) is integrally formed so as to protrude downward.
- the nozzle mechanism 6 has a ball screw 19 and a nut 20.
- the front end of the ball screw 19 has an output of the deceleration and brake mechanism 2 connected to the nozzle mechanism 21. It is connected to gear 23.
- ball PT ball PT
- the fixing flange 24 is inserted into the hole of the pressing plate 17 from the back and the fixing flange 24 is applied to the rear surface of the pressing plate 17 and fixed with the bolt 2-5 from the front side of the pressing plate 17 Have been. Then, the rear end of the ball screw 19 passes through the hole of the spring receiving plate 16 and is screwed into the pole nut 20, and the rear end protrudes rearward from the ball nut 20 (FIG. 1). ).
- One end of a longitudinal guide rod 26 arranged on the left and right is fixed to the spring receiving plate 16, and a spring 27 is mounted on this end (FIG. 5).
- the pressing plate 17 is inserted into the guide bar 26, and compresses the spring 27 with the spring receiving plate 16.
- the axis ⁇ p of the connection pipe 13 attached in this way is coincident with the axis q of the ball screw 19 (FIG. 1), and the front support part 11, the connecting pipe 13 and the rear support part 1 Through holes 2 and 8 are formed in the front-rear direction through 2. Further, the diameter of the flange 24 of the ball nut 20 is configured to be smaller than the diameter of the through passage 2 & and the diameter of the connecting pipe 13. The main part of the pole screw * nuts 19, 20 is located in the through passage 28 just below the front support part 11.
- a bearing pipe 29 is arranged so that the axis r coincides with the axis ⁇ ⁇ of the connecting pipe 13, and inside the connecting pipe 13 by the front and rear supports 30 (a, b). Installed.
- a mounting plate 31 long in the left-right direction is fixed to the rear end of the bearing tube 29, and both ends of the plate 31 are fixed to the stays 18 from behind by bolts 32.
- the support 30 (a, b) can be moved back and forth by pushing and pulling only by being inserted into the connection pipe 13.
- the front part of the bearing tube 29 protrudes from the front end of the connecting pipe 13, enters the lower part of the front support part 11, and supports the rear end of the ball screw 19.
- a bush 33 made of synthetic resin is attached to the rear end of the ball screw 19.
- the outer diameter of the bush 33 is almost equal to the inner diameter of the bearing tube 29, and it is movable in the front-rear direction with respect to the bearing tube 29, but there is no gap between it and the inner wall of the tube. Have been.
- connection between the deceleration and brake mechanism 22 and the ball screw 19 is released, the bolt 25 is removed, the connection between the pressure plate 17 and the ball nut 20 is released, and the bolt 32
- the ball screws' nuts 19, 20 of the nozzle mechanism 6 are replaced with the bearing pipe 29. It can be pulled out behind the unit base 29.
- mounting in reverse first install and fix the ball screws 'Nuts 19, 20', and then remove the bearing tube 29 with the support 30 (a, b) from the rear. It is inserted into the connecting pipe 13, its front end is fitted to the rear end of the ball screw 19, and the mounting plate 31 is fixed to the stay 18.
- a communication cable 34 and a power cable 35 are connected to the injection unit 4 from the base 2 side.
- These Cables 34 and 35 are classified into communication and power, and are accommodated in respective cable support devices 36 and 37.
- These cable support devices 36 and 37 are arranged on the upper surface of the base, and the tip end toward the injection unit 4 is fixed to the injection unit 4 by oblique connection cases 38 and 39.
- the cables 34 and 35 are arranged and arranged on the upper surface of the base 2 below the unit table 5.
- the cable support device since the cable support device is used in two levels, the height of the cable support device itself is reduced, and the cable support device can be easily stored below the unit table 5, and there is no gap between other members.
- a pointing rod 40 is fixed to the pressing plate 17 relating to the nozzle touch mechanism 6.
- the indicating rod 40 is a thin rigid rod having a pointer 41 on the other end side for displaying the movement of the pressing plate 17 with the pointer 41.
- the pointer 41 is provided on the unit base cover 10 and is arranged inside a display window 42 provided with a scale.
- the nozzle touch machine 6 When the nozzle touch machine 6 is driven in the direction for moving the injection unit 4 continuously after the nozzle touch, the injection unit 4 does not move, the spring 27 is compressed, and the nozzle touch pressure is generated. Also at this time, the pressing plate 7 moves forward, and the operator can easily know the actual level of the evening pressure from the movement amount of the pointer 41 as a real feeling.
- guideline 41 is not limited only to the specific structure shown.
- guideline 41 is not limited only to the specific structure shown.
- guideline 41 is not limited only to the specific structure shown.
- the scale of the display window 42 is composed of a row of light emitting diodes (LEDs), and the position is indicated by emitting an LED by touching the pointer.
- LEDs light emitting diodes
- the switch for switching the type of a diode to emit light is further provided, and a nozzle is provided. If there is a sunset switch, the display color can be changed by light emission.
- the structure of the unit base 5 is simple. Moreover, due to the high rigidity of the pipe structure, the rigidity of the entire unit unit 5 at the time of the nozzle setting is high.
- the ball screw nuts 19, 20 of the nozzle mechanism 6 can be taken out without dismantling the injection unit, so that inspection and repair of the pole screw nuts 19, 20 can be performed. Replacement work is simplified.
- the ball screw 19 Since the rear end of the ball screw 19 is supported by the bearing tube, the ball screw 19 is prevented from swinging, and uneven wear is not generated in the ball screw / nut mechanism.
- Cables 34 and 35 are separated for communication and power. They are organized and protected by the cable support devices 36, 37, respectively, so that they interfere with each other in function or come into contact with other parts during operation of the injection molding machine, causing mutual damage. No inconveniences such as inconvenience occur.
- the operator can intuitively grasp the nozzle pressure.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP93906813A EP0589052B1 (en) | 1992-04-07 | 1993-03-24 | Injection molding machine |
US08/157,053 US5462428A (en) | 1992-04-07 | 1993-03-24 | Injection molding machine |
DE69324872T DE69324872T2 (de) | 1992-04-07 | 1993-03-24 | Spritzgiessmachine |
KR1019930703764A KR970008208B1 (ko) | 1992-04-07 | 1993-03-24 | 사출 성형기 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4/113165 | 1992-04-07 | ||
JP4113165A JP2691658B2 (ja) | 1992-04-07 | 1992-04-07 | 射出成形機 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1993019922A1 true WO1993019922A1 (en) | 1993-10-14 |
Family
ID=14605205
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1993/000349 WO1993019922A1 (en) | 1992-04-07 | 1993-03-24 | Injection molding machine |
Country Status (6)
Country | Link |
---|---|
US (1) | US5462428A (ja) |
EP (1) | EP0589052B1 (ja) |
JP (1) | JP2691658B2 (ja) |
KR (1) | KR970008208B1 (ja) |
DE (1) | DE69324872T2 (ja) |
WO (1) | WO1993019922A1 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT2060U1 (de) * | 1997-03-05 | 1998-04-27 | Engel Gmbh Maschbau | Einrichtung zum verschieben eines plastifizier- und einspritzaggregats |
JP3676186B2 (ja) * | 2000-04-24 | 2005-07-27 | 日本輸送機株式会社 | スタッカークレーン |
JP4657513B2 (ja) * | 2001-07-31 | 2011-03-23 | 東芝機械株式会社 | 電動射出成形機 |
DE10205260B4 (de) * | 2002-02-08 | 2011-10-27 | L&T-Demag Plastics Machinery Private Limited | Ausfallsichere Kraftbegrenzung für einen Hubantrieb |
KR100802481B1 (ko) * | 2005-12-23 | 2008-03-06 | 시ㆍ화인테크놀로지 주식회사 | 사출성형 장치 |
DE102009044506B4 (de) * | 2009-11-12 | 2014-05-28 | Zhafir Plastics Machinery Gmbh | Düsenanpressvorrichtung einer Spritzgiessmaschine |
JP6109719B2 (ja) * | 2013-11-21 | 2017-04-05 | 住友重機械工業株式会社 | 射出成形機 |
JP6412053B2 (ja) * | 2016-05-13 | 2018-10-24 | ファナック株式会社 | 射出成形機 |
JP6666638B2 (ja) | 2017-12-25 | 2020-03-18 | 株式会社名機製作所 | 複合成形品用の射出成形機 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62207620A (ja) * | 1986-03-08 | 1987-09-12 | Fanuc Ltd | ノズルタツチ制御装置 |
JPH01294024A (ja) * | 1988-05-21 | 1989-11-28 | Fanuc Ltd | ノズルタッチ機構 |
JPH0261894B2 (ja) * | 1984-12-25 | 1990-12-21 | Fanuc Ltd |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3924994A (en) * | 1971-02-27 | 1975-12-09 | Katashi Aoki | Injection device for synthetic resin injection molding |
JPS6168216A (ja) * | 1984-09-13 | 1986-04-08 | Fanuc Ltd | ノズルタッチ機構 |
DE8516055U1 (de) * | 1985-06-01 | 1986-06-12 | HASCO-Normalien Hasenclever & Co, 5880 Lüdenscheid | Spritzgieß- oder Preßwerkzeug zur Verarbeitung von Kunststoffmassen |
JPH0818347B2 (ja) * | 1987-08-01 | 1996-02-28 | ファナック株式会社 | ノズルタッチ方法 |
JPH07106580B2 (ja) * | 1988-08-05 | 1995-11-15 | ファナック株式会社 | ノズルタッチ装置 |
JPH0261894A (ja) * | 1988-08-25 | 1990-03-01 | Nec Ic Microcomput Syst Ltd | 非同期式メモリ |
US5143736A (en) * | 1989-06-02 | 1992-09-01 | Canon Kabushiki Kaisha | Nozzle touch device in an injection molding apparatus |
JPH0371816A (ja) * | 1989-08-11 | 1991-03-27 | Komatsu Ltd | 射出プレス複合成形機のノズルタッチ機構 |
FR2660120B1 (fr) * | 1990-03-23 | 1992-10-16 | Nozick Jacques | Plinthe pour distribution de courants electriques et electroniques. |
-
1992
- 1992-04-07 JP JP4113165A patent/JP2691658B2/ja not_active Expired - Fee Related
-
1993
- 1993-03-24 US US08/157,053 patent/US5462428A/en not_active Expired - Lifetime
- 1993-03-24 WO PCT/JP1993/000349 patent/WO1993019922A1/ja active IP Right Grant
- 1993-03-24 DE DE69324872T patent/DE69324872T2/de not_active Expired - Fee Related
- 1993-03-24 EP EP93906813A patent/EP0589052B1/en not_active Expired - Lifetime
- 1993-03-24 KR KR1019930703764A patent/KR970008208B1/ko not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0261894B2 (ja) * | 1984-12-25 | 1990-12-21 | Fanuc Ltd | |
JPS62207620A (ja) * | 1986-03-08 | 1987-09-12 | Fanuc Ltd | ノズルタツチ制御装置 |
JPH01294024A (ja) * | 1988-05-21 | 1989-11-28 | Fanuc Ltd | ノズルタッチ機構 |
Non-Patent Citations (1)
Title |
---|
See also references of EP0589052A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP0589052A4 (en) | 1995-02-22 |
US5462428A (en) | 1995-10-31 |
DE69324872D1 (de) | 1999-06-17 |
KR940701331A (ko) | 1994-05-28 |
JP2691658B2 (ja) | 1997-12-17 |
KR970008208B1 (ko) | 1997-05-22 |
EP0589052A1 (en) | 1994-03-30 |
JPH05285984A (ja) | 1993-11-02 |
DE69324872T2 (de) | 1999-09-09 |
EP0589052B1 (en) | 1999-05-12 |
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