WO1988009257A1 - Systeme de serrage pour machines de moulage a injection - Google Patents

Systeme de serrage pour machines de moulage a injection Download PDF

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Publication number
WO1988009257A1
WO1988009257A1 PCT/JP1988/000476 JP8800476W WO8809257A1 WO 1988009257 A1 WO1988009257 A1 WO 1988009257A1 JP 8800476 W JP8800476 W JP 8800476W WO 8809257 A1 WO8809257 A1 WO 8809257A1
Authority
WO
WIPO (PCT)
Prior art keywords
mold
cylinder
pressure chamber
opening
piston
Prior art date
Application number
PCT/JP1988/000476
Other languages
English (en)
Japanese (ja)
Inventor
Kazuo Matsuda
Nobuaki Inaba
Masashi Kaminishi
Tetsuji Funabashi
Nobukazu Tanaka
Original Assignee
Kabushiki Kaisha Komatsu Seisakusho
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kabushiki Kaisha Komatsu Seisakusho filed Critical Kabushiki Kaisha Komatsu Seisakusho
Publication of WO1988009257A1 publication Critical patent/WO1988009257A1/fr

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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
    • B29C45/64—Mould opening, closing or clamping devices
    • B29C45/67—Mould opening, closing or clamping devices hydraulic

Definitions

  • the present invention relates to a mold clamping device for an injection molding machine.
  • This mold clamping device can be used for die-stroking machines.
  • a mold clamping device 2 and an injection device 3 are arranged in a drum 1 shown in FIG. 1, for example.
  • the mold clamping device 2 includes a fixed mold mounting body 4 and a movable mold mounting body.
  • the cylinder device 6 reciprocates the movable mold mount 5 along the guide rod 7, and the fixed mold 8 and the movable mold 9 are provided.
  • the injection device 3 is provided with a nozzle 11 for heating and melting the resin in the hopper 10 and injecting it by itself in a reciprocating motion. The molten resin is injected into the mold recesses 8a and 9a from the nozzle 11 and the molded product is dropped down to the machine base 1 from the discharge port 12 and discharged. To be done
  • the movable mold 9 reciprocates for each molding operation and presses against or separates from the fixed mold 8, so that the movable mold 9 is movable. Reciprocating the mold 9 at high speed is important for improving the molding rate. Furthermore, the force for pressing the movable mold 9 against the fixed mold 8, that is, the greater the mold clamper, the greater the injection pressure of the molten resin and the greater the amount of melting.
  • a mold-clamping piston cylinder mounting to satisfy the above requirements As a conventional example of the device 6, there is a structure shown in FIG. In other words, the large diameter piston 21 is fitted into the cylindrical tube 20 to form the large diameter pressure chamber 22 for mold clamping and the large diameter pressure chamber 23 for mold opening.
  • a pipe 25 is inserted into the blind hole 24 of the cylindrical tube 20 to form a small-diameter pressure 26 for closing the mold, and the pressurizable boat 27 is formed.
  • a valve 29 that cuts through the tank port 28 is provided, and the vanoleb 29 is pressed against the seal seating surface 31 with a spring 30 so that the pressure port 27 and the tank
  • the port 28 is shut off, and pilot pressure oil is supplied from the pilot port 32 to move the valve 29 against the panel 30 to press the pressure port.
  • the port 27 is connected to the evening port 28, and at the start of mold clamping, the solenoid on-off valve 36 is opened, and the pilot port 32 is connected.
  • the valve 28 is connected to the large-diameter pressure chamber 22 for mold clamping, the operating valve 33 is set to the first pressurizing position I from the neutral position N, and the pressure oil of the pump P is used to close the mold.
  • the large-diameter piston 21 is supplied to the small-diameter pressure chamber 26 so that it can be extended at a high flow rate with a small flow rate.
  • pressurizing port 27 supplies large-diameter pressure chamber 22 with pressurized oil to press large-diameter piston 21.
  • the difference in the pressure receiving area between the large-diameter pressure chamber 22 and the large-diameter pressure chamber 22 for the mold clamping is increased so that the mold clamping force can be increased.
  • the pressure receiving area is reduced so that the pressure receiving area can be reduced and high-speed movement can be performed. The force is increased and the clamping force is increased.
  • a lube 29 must be set up in the cylindrical tube 20, which complicates the structure and complicates the assembling work. Let's do it. Also, as described above, since the large diameter piston 21 extends at a high speed, a large amount of hydraulic power is sucked into the large diameter pressure chamber 22 for mold clamping.
  • the tank port 28 and the tank 34 are connected by a large-diameter suction pipe 35 so that the suction pipe 35 can be shortened. To reduce the flow resistance, it is necessary to install the tank 34 directly below the mold clamping piston ⁇ cylinder device 6, and carry out the molded product When the tank 3 4 is in the way, one side in the longitudinal direction
  • the large-diameter piston 21 and the valve 29 are arranged in series in the longitudinal direction, and each of them moves by a predetermined stroke.
  • the overall length of the aircraft will be longer, and the installation location will need to be expanded.
  • the mold closing pressure chamber and the mold are provided in the mold closing biston cylinder device for moving the movable mold mounting body in the mold closing direction and the mold opening direction.
  • a clamping pressure chamber and a mold opening pressure chamber are sequentially formed in series in the longitudinal direction, and the pressure receiving area of the mold clamping pressure chamber is larger than the pressure receiving area of the mold closing pressure chamber.
  • the pressure receiving area of the mold opening pressure chamber is smaller than the sum of the pressure receiving areas of the mold closing pressure chamber and the mold clamping pressure chamber.
  • the movable mold mounting body is rapidly fed in the mold closing direction and the mold opening direction. Since the mold can be clamped with a strong force, the opening / closing time of the mold can be shortened, and the injection pressure of the molten resin can be increased. It is possible to increase the amount.
  • the clamping screw of the second example also has a relatively long overall length in the cylinder device, as in the first example.
  • injection molding machines and diecasting machines that use this will be large and powerful.
  • the present invention has been made in view of the above circumstances, and a first object is to enable rapid reciprocation of a movable mold mounting body and strong mold clamping. Another object of the present invention is to provide a mold clamping device for an injection molding machine in which the overall length of a mold clamping piston ⁇ cylinder device is shortened.
  • Another object of the present invention is not only to be simple in structure and easy to assemble, but also to be able to arbitrarily set the rate of the injection molding factory. Oilter immediately below the mold clamping device An object of the present invention is to provide a mold clamping device for an injection molding machine that does not require the installation of a link.
  • Still another object of the present invention is to provide a mold clamping screw to improve the response based on hydraulic pressure and to speed up the cycle time of injection molding. Ton ⁇
  • the purpose of the present invention is to provide a mold clamping device for an injection molding machine in which any of the pressure chambers of a cylinder device is not subjected to a negative pressure.
  • the pistons are arranged in parallel with each other, and each piston ⁇ is connected to one movable mold mount.
  • a mold clamping piston consisting of a plurality of piston cylinder dust cartridges ⁇ A cylinder device and a plurality of these piston cylinder dust cartridges
  • An injection molding machine including a pressure oil control mechanism for selectively supplying pressure oil to each pressure chamber of the unit in accordance with each of the operations of closing the mold, closing the mold, and opening the mold.
  • a mold clamping device is provided.
  • the mold clamping piston cylinder device is located in the middle of the mold clamping device on the movable mold mounting body side. At least one second mold opening having a mold opening pressure chamber and a mold closing pressure chamber that is in contact with the second mold opening pressure chamber at a boundary of a single stone.
  • the dual-hole piston cylinder with Z-type closure and the dual-hole cylinder cylinder are installed side by side around the dual-hole cylinder cylinder.
  • a first mold opening pressure chamber is provided on the movable mold mounting body side with respect to each of the bistons, and on the opposite side of the movable mold mounting body. At least two first cylinder opening cylinders and cylinder units, each having at least two chambers opened to the atmosphere.
  • the sum of the effective pressure receiving areas of the first and second mold opening pressure chambers is smaller than the effective pressure receiving area of the mold closing pressure chamber. .
  • the mold clamping piston ⁇ is provided such that the cylinder device is provided at an intermediate portion thereof with the movable member being separated by a single piston.
  • a mold closing pressure chamber on the mold mounting body side and a mold opening pressure chamber on the opposite side, at least one mold closing ⁇ the second mold The double piston cylinder used in combination with the opening and the double piston ⁇ are arranged side by side around the cylinder duct, and the double piston cylinder is provided in parallel with the double piston cylinder.
  • Stone ⁇ Each of the pistons which are integral with the one located on the other side of the movable mold mounting body, which is one of the chests of the unit.
  • the first mold opening pressure chamber is provided on the movable mold mounting body side and the chamber opened to the atmosphere on the opposite side. Includes at least two first cylinder openers for opening the first mold.
  • the effective pressure receiving area of the pressure chamber for closing the mold is larger than the effective pressure receiving area of the pressure chamber for opening the first mold.
  • the effective pressure receiving area of the mold opening pressure chamber is larger than the effective pressure receiving area of the second mold opening pressure chamber.
  • the mold closing pressure chamber may be composed of first and second mold closing pressure chambers.
  • the mold clamping screw ⁇ The cylinder device is provided at an intermediate portion thereof with the movable mold being separated by a single stone.
  • the dual piston cylinder and the dual piston cylinder and the dual piston cylinder are arranged side by side around the dual piston cylinder and the dual piston cylinder.
  • Each of the bistons is fixed to a plurality of fixed ties for guiding the reciprocating motion of the movable mold mounting body, while the fixed dies are automatically mounted to the fixed stons.
  • Each of the cylinders is connected to a movable mold mounting body, whereby the movable mold mounting is performed at each of the pistons.
  • the hydraulic control mechanism closes the mold, and according to the mold closing and mold opening operations, the mold clamping piston series. Mold closing position, mold clamping position and mold opening position for supplying pressurized oil to predetermined pressure chambers of cylinder units in cylinder units And includes one directional control valve having a neutral position.
  • the hydraulic control mechanism closes the mold, and according to the mold closing and mold opening operations, the mold clamping piston system.
  • Multiple Bistons of the Linder Includes at least two electromagnetic directional valves to supply pressurized oil to a predetermined pressure chamber in the cylinder unit.
  • Fig. 1 is an overall front view of an injection molding machine having a conventional mold clamping device.
  • Fig. 2 is a schematic cross-sectional view of a conventional steel cylinder for mold clamping device.
  • FIG. 3 is a schematic explanatory view showing a specific example of the mold clamping device of the present invention.
  • FIGS. 4, 5 and 6 are illustrations of the operation of closing the mold, closing the mold and opening the mold, respectively, for the specific example shown in FIG. 3.
  • FIG. 7 is a schematic sectional view showing a second specific example of the mold clamping device of the present invention.
  • FIGS. 8, 9 and 10 are diagrams for explaining the operation of closing the mold, closing the mold and opening the mold, respectively, according to the second example shown in FIG. Yes,
  • FIG. 11 is a schematic sectional view showing a modification of the second specific example shown in FIG.
  • FIG. 12 is a schematic sectional explanatory view showing a third specific example of the mold clamping device according to the present invention.
  • FIG. 13 is a schematic sectional explanatory view showing a modification of the third specific example shown in FIG.
  • FIG. 3 a first specific example of the mold clamping apparatus of the present invention will be described in detail with reference to FIGS. 3 to 6.
  • FIG. 3 a first specific example of the mold clamping apparatus of the present invention will be described in detail with reference to FIGS. 3 to 6.
  • the movable mold mounting body 40 is provided with the first and second mold opening screws juxtaposed to each other.
  • the pistons of the cylinder units 41, 42 For closing the first and second molds, the piston rods 45, 43 and the piston for closing the mold are connected.
  • the piston rod 45 of the cylinder unit 44 is connected.
  • the first and second cylinder units 41, 42 are connected to the first port 47 of the directional control valve 46, which is a component of the hydraulic control mechanism.
  • the pressure chambers 41b and 42b are formed on the movable mold mounting body 40 side, respectively, and the atmosphere is located on the opposite side of each of the bistons. Opened chambers 41a and 42a are formed respectively.
  • Pistons for opening the first and second molds ⁇ One cylinder closing cylinder is located at a substantially intermediate position between the cylinder units 41 and 42.
  • a pressure chamber 44b for opening the second mold is provided on the movable mold mounting body side with the biston inside, and on the other side.
  • a mold closing pressure chamber 44a is not formed.
  • Pressure chamber for mold closing 4 4a is the direction
  • the second port 48 of the control valve 46 and the pressure chamber 44 b for opening the second mold are connected to the third port 49 of the directional control valve 46, respectively. .
  • the inlet port 50 of the directional control valve 46 is connected to the hydraulic pressure source 51, and the drain port 52 of the directional control valve 46 is connected to the tank 53. ing .
  • the sum of the effective pressure receiving areas ⁇ A, A 2 and A 3 of the pressure chambers 4 1 b and 4 2 b for opening the first mold and the pressure chambers 4 4 b for opening the second mold is the mold closed. It is configured to be smaller than the effective pressure receiving area A 4 of the mold closing pressure chamber 44 a of the same cylinder cylinder unit 44.
  • the mold closing piston ⁇ the cylinder unit 44 is connected to the piston rod 45.
  • the movable mold mounting body 40 is moved so as to protrude, and is moved to the mold closing direction, that is, to the fixed mold (not shown) side.
  • the pressure oil in the pressure chambers for opening the first mold 4 lb, 42 b and the pressure chamber for opening the second mold 44 b is Since it flows into the mold closing pressure chamber 44 a, the moving speed V of the movable mold mounting body 40 is QZ (A *-A 3 1 A 2 1 A, ).
  • Q is the amount of oil supply.
  • the pressure oil of the hydraulic pressure source 51 is supplied only to the mold closing pressure chamber 44 a of the mold closing piston cylinder unit 44.
  • the pressure chambers 4 lb, 4 2b for opening the first mold and the pressure chambers 4 4b for opening the second mold are connected to the tank 53, so that the piston chamber for closing the mold is used. Due to the further protrusion of the stainless steel rod 45 of the rear unit 44, the movable mold mounting body 40 is still moved in the mold closing direction and the mold clamping operation is performed.
  • the moving speed V 2 of the movable mold mounting body 40 becomes QZ A ⁇ , which is slower than the moving speed V at the time of closing the mold described above, while the maximum force P at which the mold closes P 2 becomes XA4, which is significantly larger than the maximum mold closing force P i when the mold is closed.
  • the directional control valve 46 is shifted to the mold opening position ⁇ as shown in FIG.
  • the pressure oil of the hydraulic pressure source 51 is supplied only to the mold opening pressure chamber 44 b of the mold closing piston cylinder cylinder 44, and the first oil is supplied.
  • Piston for opening the second mold Cylinder
  • the movable mold mount 40 is moved in the mold opening direction opposite to the mold closing direction.
  • the moving speed V 3 becomes QZA 3 and is lower than the moving speed V at the time of closing the mold, and is higher than the moving speed V 2 at the time of mold clamping.
  • the maximum force P 3-out mold opening is Ri Oh in PXA 3, the mold closing Ji Re Su time) good Ri also rather come large, is Ri good or mold clamping at the time of also of (P 2) has been small.
  • FIG. 7 a second specific example of the mold clamping device of the present invention will be described in detail with reference to FIGS. 7 to 10.
  • the cylinder cylinder 61 is coaxial with the mold opening piston cylinder cylinder 60 They are arranged side by side like a heart to form a piston cylinder device for mold clamping.
  • Mold opening valve ⁇ Cylinder unit 60 is inside cylinder tube 62 and mold closing valve ⁇ Cylinder unit 61
  • a piston 64 provided with a piston rod 63 also serving as an induction tube is fitted to the automatic position, and the movable mold is separated from the piston 64 by the movable die.
  • a first mold opening pressure chamber 41b located on the mounting body 40 side and a chamber 41a opened to the atmosphere are formed on the opposite side.
  • the piston rod 6 3 is a movable mold mount 40
  • the piston rod 63 is provided with a cylinder hole 63a, and the cylinder rod 63 is provided in the cylinder hole 63a.
  • the screw 66 is fitted into the sliding position to form the mold closing pressure chamber 44a and the second mold opening pressure chamber 44b, and the mold closing piston is formed.
  • the cylinder unit 61 is configured.
  • Each of the pressure chambers is selectively connected to a hydraulic source 51 and a tank 5.3 by a hydraulic control mechanism 70.
  • the hydraulic control mechanism 70 includes first and second electromagnetic directional control valves 71 and 72, and the first and second electromagnetic directional control valves 71 and 72 are driven by a spring force to a neutral position N and a drain. It is held at positions D and.
  • the effective pressure receiving area A of the mold closing pressure chamber 44 a and the effective pressure receiving area A 2 A 3 of the first and second mold opening pressure chambers 4 lb and 44 b are A> A 2> A 3. have .
  • the first solenoid 71 a of the first electromagnetic directional control valve 26 is excited to the first position I, and the solenoid 72 a is moved to the first position.
  • the pressure oil of the hydraulic power source 51 is released to the first mold opening pressure chamber 41b and the mold closing pressure chamber 44a. Then, the pressure chamber 44 b for opening the second mold is connected to the tank 53.
  • the piston rod 63 moves forward due to the pressure receiving area difference (A> A2), and the movable mold mount 40 is closed in the mold closing direction. And the piston rod 63 rapidly moves forward because the pressure oil in the first mold opening pressure chamber 41b is supplied to the mold closing pressure chamber 44a. As a result, the movable mold mount 40 can be rapidly fed in the mold closing direction.
  • the pressure oil of the hydraulic pressure source 51 is supplied only to the mold closing pressure chamber 44a, and the force pressing the movable mold mounting body 4 ⁇ through the piston rod 63.
  • the second solenoid 71b is energized as shown in Fig. 10.
  • the first electromagnetic directional control valve 71 is set to the second position ⁇ , and the solenoid 72a is excited to set the second electromagnetic directional control valve 72 to the communication position P.
  • the pressure oil of the hydraulic pressure source 51 is supplied to the second mold opening pressure chamber 44b, and the pressure oil in the mold closing pressure chamber 44a is also discharged to the first mold opening pressure chamber 44b. Since the piston rod 63 flows into the mold opening pressure chamber 41b and moves backward rapidly, the movable mold mounting body 40 can be rapidly fed in the mold opening direction.
  • FIG. 11 shows a modification of the second embodiment, in which a cylinder hole 68 is formed in a piston rod 65 of a piston 66, and this cylinder hole is formed.
  • a piston rod 69 is inserted into 68 to form a second mold-closing pressure chamber 67, and the second mold-closing pressure chamber 67 and the mold-closing pressure chamber 67 are formed.
  • Supply pressure oil to the pressure chamber 4 4a at the same time.
  • the movable mold mount 40 is automatically self-aligned along the bars 80a, 80b fixed to the cylindrical tube 62. It is.
  • FIG. 12 shows a third embodiment of the mold clamping apparatus according to the present invention.
  • a pair of first molds is provided on at least both sides of the movable mold mounting body 40. Mold opening screws ⁇
  • the fixed piston rod is also used as the piston (8) for the movable bars 80a and 80b for guiding the movement of the movable mold mounting body.
  • Fixed pistons 41c and 42c are formed at suitable positions of these fixed pistons 80a and 80b, respectively, and the first mold opening pistons are formed.
  • the air opening chambers 41a and 41b located on the side of the movable mold mounting body and the pistons 41c and 42 Form pressure chambers for opening the first mold, 4 lb and 42 b, respectively, on the opposite side of c.
  • Patent unit 44 for closing the mold is attached to the end plate 81 supporting the pair of tyres 80a and 80b. To be installed side by side with the Boston cylinder unit 41, 42, and automatically attached to the unit 44. The fitted piston rod 45 of the fitted piston 44 c is fixed to the substantial center of the movable mold mount 40. As a result, the pressure chamber 44b for opening the second mold is closed on the movable mold mounting body 40 side from the piston 44c, and the mold is closed on the opposite side. The same pressure chamber 44a is formed.
  • the third specific example constitutes a mold clamping device having a mold clamping button ⁇ cylinder device that is similar in appearance to the first specific example.
  • Each of the pressure chambers 41b, 42b, 44a, and 44b of the mold clamping piston cylinder device in the third specific example is closed by a mold.
  • the hydraulic power source 51 and the tank 5 are selectively operated in accordance with the respective operations of the mold clamping and the mold opening, via a hydraulic control mechanism 70 similar to that of the second embodiment. Connected to 3.
  • the mold clamping piston ⁇ the first mold opening piston of the cylinder device ⁇ the cylinder units 41, 42 Since the piston rods are also used as 80a and S0b, the overall length of the mold clamping device can be further reduced.
  • hydraulic control mechanism 70 is not limited to the above-described one, but can control the first, second, and third electromagnetic direction controls 73, 74, 75 as shown in FIG. It may be a combination.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

Système destiné à permettre le déplacement rapide en avant et en arrière d'un organe de montage de moule mobile, de manière à effectuer un serrage puissant du moule, et à réduire la longueur totale du mécanisme de serrage de moule à piston-cylindre. Ce système de serrage comprend le mécanisme de serrage de moule à piston-cylindre composé d'une pluralité d'unités à piston-cylindre (41, 42, 44) disposées en parallèle les unes par rapport aux autres et reliées au niveau de leurs bielles respectives (43, 45) à l'organe unique de montage de moule mobile (40), et un mécanisme de commande de la pression hydraulique comprenant une soupape de commande de direction (46) appliquant de manièree sélective de l'huile sous pression aux chambres de pression dans les unités à piston-cylindre (41, 42, 44) en fonction des opérations de fermeture, serrage et ouverture du moule.
PCT/JP1988/000476 1987-05-19 1988-05-19 Systeme de serrage pour machines de moulage a injection WO1988009257A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP12028387A JPS63286318A (ja) 1987-05-19 1987-05-19 型締装置
JP62/120283 1987-05-19

Publications (1)

Publication Number Publication Date
WO1988009257A1 true WO1988009257A1 (fr) 1988-12-01

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Application Number Title Priority Date Filing Date
PCT/JP1988/000476 WO1988009257A1 (fr) 1987-05-19 1988-05-19 Systeme de serrage pour machines de moulage a injection

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JP (1) JPS63286318A (fr)
WO (1) WO1988009257A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0665093A1 (fr) * 1994-01-31 1995-08-02 Nissei Asb Machine Co., Ltd. Dispositif et procédé pour serrer un moule
KR100636607B1 (ko) * 1999-05-31 2006-10-20 가부시키가이샤 아오키가타시겐큐쇼 몰드 클램핑 장치
KR100698447B1 (ko) * 2004-04-13 2007-03-23 도시바 기카이 가부시키가이샤 형 체결 장치 및 성형기

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2973478B2 (ja) * 1990-06-22 1999-11-08 ダイキン工業株式会社 射出成形機並びに射出成形機における型締装置及び射出装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5144769U (fr) * 1974-09-27 1976-04-02
JPS5661320U (fr) * 1979-10-18 1981-05-25
JPS57115329A (en) * 1980-11-24 1982-07-17 Hehl Karl Clamping device for plastic injection molding machine
JPS59103734A (ja) * 1982-10-14 1984-06-15 カルル・ヘ−ル 合成樹脂射出成形機の型締めユニツト用液圧装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5144769U (fr) * 1974-09-27 1976-04-02
JPS5661320U (fr) * 1979-10-18 1981-05-25
JPS57115329A (en) * 1980-11-24 1982-07-17 Hehl Karl Clamping device for plastic injection molding machine
JPS59103734A (ja) * 1982-10-14 1984-06-15 カルル・ヘ−ル 合成樹脂射出成形機の型締めユニツト用液圧装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0665093A1 (fr) * 1994-01-31 1995-08-02 Nissei Asb Machine Co., Ltd. Dispositif et procédé pour serrer un moule
KR100636607B1 (ko) * 1999-05-31 2006-10-20 가부시키가이샤 아오키가타시겐큐쇼 몰드 클램핑 장치
KR100698447B1 (ko) * 2004-04-13 2007-03-23 도시바 기카이 가부시키가이샤 형 체결 장치 및 성형기

Also Published As

Publication number Publication date
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