EP0833735A1 - Unite de fermeture pour presse d'injection - Google Patents

Unite de fermeture pour presse d'injection

Info

Publication number
EP0833735A1
EP0833735A1 EP96918680A EP96918680A EP0833735A1 EP 0833735 A1 EP0833735 A1 EP 0833735A1 EP 96918680 A EP96918680 A EP 96918680A EP 96918680 A EP96918680 A EP 96918680A EP 0833735 A1 EP0833735 A1 EP 0833735A1
Authority
EP
European Patent Office
Prior art keywords
teeth
unit according
closing unit
toothing
angular position
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.)
Withdrawn
Application number
EP96918680A
Other languages
German (de)
English (en)
Inventor
Pierre Mailliet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Husky Injection Molding Systems Ltd
Original Assignee
Paul Wurth SA
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 Paul Wurth SA filed Critical Paul Wurth SA
Publication of EP0833735A1 publication Critical patent/EP0833735A1/fr
Withdrawn legal-status Critical Current

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
    • B29C45/64—Mould opening, closing or clamping devices
    • B29C45/67—Mould opening, closing or clamping devices hydraulic
    • B29C45/6707—Mould opening, closing or clamping devices hydraulic without relative movement between the piston and the cylinder of the clamping device during the mould opening or closing movement

Definitions

  • the invention relates to a clamping unit for an injection molding machine.
  • the clamping unit of an injection molding machine picks up the injection mold. It carries out the movements necessary for closing and opening the injection mold and generates the forces required to hold or tear open the injection mold.
  • the main components of each locking unit are a movable locking plate, a fixed counter plate, which is usually arranged on the injection side and is therefore also referred to as an injection plate, and a locking device. Part of the injection mold is clamped on the fixed counter plate, the complementary part of the injection mold on the movable closing plate.
  • Locking device is to be understood as the device which generates the necessary closing force for locking the injection mold during injection and pressing. Both mechanical locking devices with lever mechanisms and hydraulic locking devices with locking by hydraulic cylinders are known.
  • the present invention relates to a clamping unit with a hydraulic tumbler.
  • a power cylinder is designed as a pressure cushion and is arranged on a support plate behind the movable locking plate.
  • a clamping unit with four hydraulic cylinders on the fixed counter plate is known.
  • the pistons of these hydraulic cylinders are rigidly connected to the movable striker plate using tie rods.
  • the four hydraulic cylinders generate the necessary closing force, but must also simultaneously execute the opening and closing movements of the movable closing plate.
  • the four hydraulic cylinders Since the four hydraulic cylinders simultaneously perform a locking function and a shifting function, they must have both a large cross section and a large one Have hub and are therefore relatively space-consuming. The four relatively large hydraulic cylinders consequently significantly hinder the accessibility of the injection unit and also have a high oil consumption.
  • the overall length of the clamping unit is much greater than the greatest possible distance between the counter plate and the closing plate. From picture 53 B, page 108 of the same manual, a more compact clamping unit with four hydraulic cylinders on the fixed counter plate is known.
  • the four tie rods are detachably connected at their ends to the respective hydraulic cylinder via claws. Opening and closing movements are generated in decoupled tie rods by laterally attached rapid-motion cylinders.
  • the stroke of the four hydraulic cylinders only has to correspond to the length difference between the largest and smallest injection molds.
  • This type of construction is mainly of interest if the injection molds used all have more or less the same length.
  • the stroke of the hydraulic cylinders must be relatively large and the clamping unit from Figure 53B has essentially the same disadvantages as the aforementioned clamping unit from Figure 56.
  • the present invention has for its object to provide a compact clamping unit which is best suited for injection molds of different lengths. This object is achieved by a clamping unit according to claim 1.
  • the clamping unit comprises, in a known manner, a movable closing plate and a fixed counter plate, these plates forming, for example, clamping plates for an injection mold.
  • a sliding device for the movable striker plate provides the opening and closing movements and allows the movable striker plate to be positioned relative to the fixed counterplate.
  • a plurality of hydraulic power cylinders preferably four, are arranged on the fixed counter plate and generate the closing force. This closing force is transmitted to the movable closing plate via tie rods, which are each mechanically connected to the piston of a power cylinder.
  • the clamping unit according to the invention differs from the known locking unit, which has the aforementioned features, mainly in that the tie rods are rotatable about their longitudinal axes in a first and second angular position, the first locking means being arranged along a rod section A on the tie rods and second locking means on the movable locking plate and wherein these first and second locking means are designed to be complementary in such a way that in the first angular position of the tie rods they enable the movable locking plate to be axially displaced relative to the tie rods, and that in the second angular position of the tie rods the first locking means in rod section A on the tie rods interact with the second locking means on the movable locking plate for transmitting the required locking force.
  • the clamping unit according to the invention allows an extremely compact, space-saving design.
  • the required stroke of the power cylinders and thus their external dimensions are minimal.
  • the locking unit according to the invention is characterized by a very small overall length.
  • the overall length of the clamping unit does not have to be significantly greater than the greatest possible distance between the counterplate and the closing plate.
  • the hydraulic connections for the power cylinders and the displacement device of the closing plate can be arranged on the fixed counter plate. Flexible hydraulic connections are therefore not required.
  • the clamping unit is excellently suitable for holding injection molds of different lengths. The length range of the injection molds is limited solely by the length of the rod section A with the first locking means.
  • the first locking means advantageously comprise an external toothing on the pull rod
  • the second locking means comprise a locking bush with an internal toothing, which is fastened in a rotationally fixed manner on the movable closing plate.
  • Internal teeth and external teeth are divided into at least two rows of teeth by longitudinal grooves.
  • the rows of teeth of the external teeth can be carried out axially by longitudinal grooves of the internal teeth and the rows of teeth of the internal teeth by the longitudinal grooves of the external teeth, so that an axial displacement of the movable locking plate tiv to the tie rods can be done.
  • the teeth of the external toothing can be engaged behind the teeth of the internal toothing in order to transmit a tensile force.
  • the teeth of the internal and external toothing can be arranged in a ring or screw shape.
  • a substantial axial backlash should be formed between the internal and external toothing.
  • a large backlash also has major disadvantages. For example, the working stroke of the power cylinders and thus the energy consumption of the clamping unit increases. The flows through the power cylinders are considerably larger, so that the hydraulic system of the clamping unit must also be designed larger. Furthermore, when a large backlash is overcome, the unlocked positions are accelerated relatively strongly, so that the teeth of the external toothing hit the teeth of the internal toothing with great force.
  • the actuator for rotating the tie rods is designed such that it can move the tie rods into a second angular position by turning it to the left or by turning it to the right, the backlash S between the internal and external gearing is once on the left and once on the right, depending on the direction of rotation distributed.
  • the gears are accordingly in in the first direction of rotation automatically without play for the transmission of the closing force, and in the second direction of rotation automatically without play for the transmission of an opening force to the locking plate.
  • the movable striker plate advantageously has rotatably mounted sliding shoes as a radial guide for the tie rods.
  • the longitudinal grooves in the external toothing form guide surfaces for these sliding shoes, which are extended beyond the rod section A.
  • the slide shoes can be rotated with the pull rod.
  • Figure 1 is a view of a locking unit according to the invention
  • Figure 2 shows a longitudinal section through the clamping unit of Figure 1;
  • FIG. 3 and 4 show a cross section through a pull rod and a locking bush of the closing unit of FIG. 1;
  • Figure 5 shows a cross section through the tie rod
  • FIG. 7 shows a section along the section line A-A of FIG. 3;
  • FIG. 9 shows an enlargement from the longitudinal section of FIG. 2;
  • Figure 10 shows a section through an actuator for two tie rods
  • Figure 21 is a diagram of the hydraulic control of the clamping unit.
  • FIGS. 1 and 2 The general structure of a locking unit 10 according to the invention is explained with reference to FIGS. 1 and 2.
  • An injection plate 14 with a central injection opening 16 is fixedly mounted on a base frame 12.
  • the base frame det a guide bed 18 for a movable striker 20 from.
  • the complementary halves of an injection mold (not shown) are clamped onto the injection plate 14 and the closing plate 20.
  • the movable closing plate 20 can be displaced between the injection plate 14 and an end plate 24 by means of an actuating device which comprises, for example, two laterally arranged displacement cylinders 25. It is guided in the base frame 12.
  • the displacement cylinders 25 accordingly open and close the complementary halves of the injection mold by displacing the closing plate 20 relative to the injection plate 14.
  • the housing of the displacement cylinders 25 is fastened to the fixed injection plate 14, so that both displacement cylinders 25 have a fixed hydraulic system ⁇ may have on the fixed injection plate 14.
  • tie rods 22 extend from the fixed injection plate 14, through the movable closing plate 20, to the end plate 24, which is also fixedly mounted on the underframe 12. In the end plate 24, the tie rods 22 are guided axially displaceably in sliding bushes 32. On the fixed injection plate 14, each pull rod 22 is assigned a power cylinder 26, the housing of which is rigidly connected to the injection plate 14.
  • these power cylinders 26 each comprise an annular piston 28 which is mechanically connected to the pull rod 22.
  • An end-side first pressure chamber 30 is delimited axially on the one hand by the injection plate 14 and on the other hand by the piston 28. If this first pressure chamber 30 is pressurized, the piston 28 exerts an axial tensile force on the tie rods 22, the reaction force being absorbed by the fixed injection plate 14. This first pressure chamber 30 generates the closing force required to hold the injection mold closed.
  • the piston 28 forms a substantially smaller pressure area than the shoulder area.
  • each pull rod 22 passes through a locking bush 34 with the first locking means . n 36.
  • second locking means 38 complementary to the first locking means, are provided along a rod section A.
  • first and second locking means 36 and 38 are designed such that in a first angular position of the pull rod 22, the latter can be axially passed through the locking bush 34, but that the second locking means can be brought into a second angular position by turning the pull rod 22, in which they interact within the rod section A with the first locking means for transmitting the required closing force.
  • the second locking means 38 are in the first angular position.
  • the pull rods 22 slide axially through the locking bushes 34 when the locking plate 20 is moved.
  • the pull rods 22 are then locked in the locking bushes 34 of the movable locking plate 20 by rotating from the first angular position into the second angular position.
  • the four power cylinders 26 can now transmit the required closing force via the tie rods 22 to the closing plate 20, that is to say pull the closing plate 20 in the direction of the injection plate 14.
  • An advantageous embodiment of the locking means is described in more detail with reference to FIGS. 2 to 8.
  • the locking means on the pull rod 22 advantageously comprise (see FIGS.
  • an external toothing 40 which is divided by longitudinal grooves 42 into three axial rows 40-), 4Ü2, 4O3, in which the teeth of the external toothing are uniform and are arranged parallel to each other.
  • the locking bushes 34 (see FIGS. 2 and 6) comprise a complementary internal toothing, which is likewise formed by longitudinal grooves 44-
  • the longitudinal grooves 42 j in the external toothing of the pull rod 22 are somewhat wider than the teeth 46, the locking sleeve 34, and the longitudinal grooves 44j in the inner
  • the teeth of the locking sleeve 34 are slightly wider than the teeth 40 j of the pull rod 22.
  • Locking sleeve 34 In this second angular position, the rows of teeth of the external teeth engage in the rows of teeth of the internal teeth to transmit the required closing force.
  • Figure 8 shows a section along the section line BB of Figure 4. It can be seen that the teeth of the external and internal teeth have a trapezoidal cross-section.
  • the teeth can be helical, that is, the teeth are arranged along a helix, and the teeth accordingly form a thread with a pitch P.
  • the teeth can also be annular, that is to say that the teeth form parallel rings which are each arranged at a distance P (also called pitch P) from one another. So that the external toothing can engage in the internal toothing when the pull rod 22 is rotated, the teeth 40 j of the external toothing must of course be axially between the teeth 46j of the internal toothing in the first angular position of the pull rod 22. So that smaller positioning errors of the movable locking plate do not interfere with the external toothing in the internal toothing a relatively large axial backlash between the internal toothing and the external toothing is desirable.
  • the extremely high closing force is transmitted from the four tie rods 22 to the movable locking plate 20 via the locking bushes 34.
  • the frequency of the closing and opening processes is very high in practice. In other words, the material is exposed to significant changes in voltage with a high frequency. This can result in permanent deformations which impair the function of the locking device.
  • the following precautions can advantageously be taken: a) The locking bushes 34 are to be fastened to the movable locking plate in such a way that they are under tensile stress when the closing force is transmitted. This ensures that both the tie rods 22,.
  • the locking bushes 34 also experience an elongation in the same direction, that is to say they are deformed in the same way.
  • the cross sections of the locking bushes 34 and the tie rods 22 should be designed such that they are exposed to approximately equal tensile stresses when transmitting the closing force.
  • the base of the teeth of the external toothing should be approximately equal to the base of the teeth of the internal toothing, so that the
  • the teeth of the external teeth should have a higher hardness than the teeth of the internal teeth.
  • the flank surface of the teeth of the external toothing should be larger than the flank surface of the teeth of the internal toothing, so that a tooth impression of the teeth of the external toothing on the softer teeth of the internal toothing is avoided.
  • the yield point of the tie rods 22 should be approximately 20% higher than the yield point of the locking bushes 34.
  • the pull rod 22 is connected to the annular piston 28 via a thread 50 (hereinafter referred to as the rotary thread).
  • the pull rod 22 is rotated via a rotary drive 54 which is arranged in the extension of the power cylinder 26.
  • This rotary drive 54 comprises a housing 56 which is flanged to the housing of the power cylinder 26, for example.
  • a toothed sleeve 58 is rotatably mounted in the housing 56 in two ball bearings 60, 62.
  • the toothed sleeve 58 is plugged onto the end of the pull rod 22 and connected to this end via a toothed or splined shaft connection in such a way that a torque is transmitted in a form-fitting manner, but at the same time an axial displacement of the pull rod 22 in the toothed sleeve 58 is possible.
  • the angular position of the toothed sleeve 58, and thus the angular position of the toothed rack 22, can be adjusted via an actuator 70 (see also FIG. 10) which engages in the external toothing 64 of the toothed sleeve 58. It remains to be noted that a pure torque is transmitted to the pull rod 22. All radial forces acting on the toothed sleeve 58 are transmitted directly from the two ball bearings 60, 62 to the housing 56. This ensures that the turning thread 50 is not further stressed by actuating forces.
  • FIG 10 shows an advantageous embodiment of an actuator 70 for two toothed sleeves 58 'and 58 ".
  • This actuator 70 comprises a rack 72 which can be engaged with its toothing 74' in the toothed sleeve 58 'and with its toothing 74" in the toothed sleeve 58 "
  • the rack 72 is housed in a housing tube 73.
  • a piston 78 ', 78" is axially sealed into the cylinder bore 76', 76 ".
  • This piston is advantageously designed as a plunger.
  • the pistons 78 ', 78" are axially on the two ends of the housing tube 73 flanged.
  • the rack 72 can be pushed axially back and forth between the two pistons 78 ', 78 "in the housing tube 73.
  • the rack is shown in FIG. 10 against the left piston 78'; arrow 80 indicates the possible stroke of the rack 72 in the direction of the right piston 78 ".
  • Both pistons 78 ', 78 " which also have a guide function for the rack 72, have an axial connection channel 82', 82" for a pressure medium. Via these connection channels 82 ', 82 ", the cylinder bores 76', 76" behind the piston 78 ', 78 “can optionally be pressurized with the pressure medium, so that two oppositely acting pressure cylinders are formed for displacing the rack 72. It should be noted that these two pressure cylinders are arranged directly above the toothed sleeves 58 ', 58 ". This reduces the overall length of the actuator to a minimum. It should also be noted that the actuators are designed such that the tie rods 22 can be rotated from the first angular position to the right and to the left by an angle ⁇ .
  • an axial guide device 90 is provided on the movable closing plate 20 for the tie rods 22.
  • This guide device 90 comprises a housing 92 which is rigidly connected to the movable closing plate 20.
  • a ring 94 is rotatably mounted within this housing.
  • This ring 94 serves as a holder for three sliding shoes 96.
  • the three longitudinal grooves 42 on the tie rods 22 are designed as guide surfaces for these sliding shoes 96 and are extended via the rod section A to the end plate 24.
  • the tie rods 22 are therefore always centered in the locking sleeves 34. If the pull rod 22 is rotated about its axis for locking, the ring 94 rotates with the sliding shoes 96.
  • FIGS. 11 to 14 show different designs of a pull rod 22, as well as different arrangements of the slide shoes 96 and designs of the guide surfaces for the slide shoes 96. According to the embodiment of the figure
  • the pull rod 22 comprises two longitudinal grooves 42-
  • , 96 2 are guided in guide channels in the longitudinal grooves 42-j, 42.
  • the pull rod comprises three longitudinal grooves 42 ⁇ 42, 42 3 , which divide the external teeth into three tooth pulls 40 ⁇ 40 2 , 40 3 .
  • the guide surfaces for the sliding shoes 96 1 , 96, 96 3 are designed as flat surfaces which are at an angle of 120 ° to one another.
  • the embodiment according to FIG. 13 differs from the embodiment according to FIG.
  • the pull rod 22 has four guide surfaces 42-), 42 2 , 42 3 , 42 4 , which are at an angle of 90 ° to one another.
  • the external toothing is divided into six rows of teeth by six longitudinal grooves, but only every second longitudinal groove is designed as a guide surface for a sliding shoe 96 ⁇ 96, 96 3 . It goes without saying that larger clamping units require more rows of teeth and sliding shoes than smaller clamping units.
  • P pitch / pitch of the external toothing on the pull rod 22 or the internal toothing on the locking sleeve 34
  • D Medium tooth width
  • Figures 15, 17 and 19 each show the position of the external teeth before and after a 60 ° rotation of the tie rod to the left.
  • the teeth of the external toothing lie in the first angular position in the longitudinal grooves between the rows of teeth of the internal toothing.
  • the teeth of the external toothing lie in their second angular position left flank on the teeth of the internal toothing and can transmit a force to the left from the pull rod to the locking sleeve without play.
  • Figures 16, 18 and 20 each show the position of the external toothing before and after turning the tie rod through an angle of 60 ° to the right.
  • the teeth of the external toothing lie in the first angular position in the longitudinal grooves between the rows of teeth of the internal toothing. After this 60 ° rotation to the right, the teeth of the external toothing lie in the second angular position with their right flank on the teeth of the internal toothing and can transmit a force to the right from the pull rod to the locking sleeve without play.
  • the pitch of the thread 50 it is assumed that in the starting position before the pull rod is rotated, the rows of teeth of the external toothing are angularly exactly in the middle between the rows of teeth of the internal toothing and that the axial backlash S between the inner and outer teeth is equally distributed on both sides.
  • the pitch of the turning thread is to be designed in such a way that by rotating the pull rod from the first angular position to the second angular position, the existing backlash S is distributed on one side between the internal and external toothing, so that the force transmitted between the tooth flanks no substantial backlash should exist.
  • Figures 15 and 16 relate to the case of an annular toothing.
  • the pitch of the turning thread 50 is to be designed such that by turning the pull rod 22 from the first angular position to the second angular position, the feed X of the pull rod corresponds to approximately half of the backlash S between the internal and external teeth, i.e.
  • FIGS. 17 and 18 relate to the case of a helical toothing in the direction of rotation of the pull rod in the direction of the force to be transmitted is increasing. If one assumes that the pitch P 'of the rotary thread is also increasing in the direction of rotation of the drawbar in the direction of the force to be transmitted, the feed X of the drawbar must be approximately half the backlash S between the internal and external gearing plus one sixth of the pitch P. correspond to the toothing, that is:
  • Figure 21 shows a block diagram of the hydraulic control of the clamping unit 10.
  • a 4/3-way proportional valve 100 is with its first working output A via a 2/2-way switching valve 102-
  • the 4/3-way proportional valve 100 which is controlled by a regulator 103, regulates the closing pressure in the first pressure chamber 30 of the four power cylinders 26 as a function of a closing force specification via its working output A during the closing process 104.
  • the working outlet B of the 4/3-way proportional valve 100 is connected directly to the second pressure chamber 31 of each of the four power cylinders 26.
  • the closing plate 20 is provided with a position sensor 105 which is connected to an axis controller 106.
  • a position sensor 108 is assigned to the piston 28 of each power cylinder 26.
  • the output signals S1, S2, S3, S4 of these position sensors 108 are also input variables of the axis controller 106.
  • the reference number 110 shows an input unit for the length "I" of the injection mold, that is to say the axial distance between the closing plate 20 and the injection plate 14. This length "I” is set by the axis controller 106 via its output 112, in that the latter controls the two shift cylinders 25.
  • the teeth of the external toothing should be positioned axially exactly between the teeth of the inner toothing of the locking bush 34 in order to ensure that the external toothing engages properly when the pull rod 22 is rotated into the second angular position enable.
  • the rest position of the piston 28 is hydraulically adjusted in function of the set length "I" in an interval [-0.5P; + 0.5P] around a predetermined reference position.
  • the pull rod 22 is axially displaced by an amount y, where ⁇ 0.5P ⁇ y ⁇ + 0.5P, relative to a reference point.
  • the axis controller 106 controls the 2/2-way switching valves via the outputs V11, V12, V13, V14. If the measured actual position of a piston 28 corresponds to the predetermined target position, the corresponding 2/2-way valve 102 is closed. This regulation allows the length "I" to be continuously adjusted with little effort, regardless of the pitch or pitch of the internal and external gearing. It is pointed out that only one proportional valve is required for the regulation described above.

Landscapes

  • 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

L'unité de fermeture décrite pour une presse d'injection comprend un plateau de fermeture (20) mobile et un plateau complémentaire fixe (14) qui forment des plateaux de serrage d'un moule de coulage par injection, ainsi que plusieurs vérins hydrauliques (26) montés sur le plateau complémentaire fixe (14) pour générer une force de fermeture. Un mécanisme d'entraînement assisté (70) permet de faire pivoter les barres de traction (22) autour de leur axe longitudinal jusqu'à des première et deuxième positions angulaires. Des premiers moyens de verrouillage (38) situés sur les barres de traction (22) le long d'une première section A des barres coopèrent avec des deuxièmes moyens de verrouillage (36) situés sur le plateau mobile de fermeture (20). Dans la première position angulaire des barres de traction (22), les moyens de verrouillage (38, 36) permettent au plateau mobile de fermeture (20) de se déplacer axialement par rapport aux barres de traction (22), et dans la deuxième position angulaire des barres de traction (22), ils transmettent la force de fermeture requise.
EP96918680A 1995-06-12 1996-06-10 Unite de fermeture pour presse d'injection Withdrawn EP0833735A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
LU88622 1995-06-12
LU88622A LU88622A1 (de) 1995-06-12 1995-06-12 Schliesseinheit fuer eine Spritzgiessmaschine
PCT/EP1996/002505 WO1996041710A1 (fr) 1995-06-12 1996-06-10 Unite de fermeture pour presse d'injection

Publications (1)

Publication Number Publication Date
EP0833735A1 true EP0833735A1 (fr) 1998-04-08

Family

ID=19731532

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96918680A Withdrawn EP0833735A1 (fr) 1995-06-12 1996-06-10 Unite de fermeture pour presse d'injection

Country Status (6)

Country Link
US (1) US6210144B1 (fr)
EP (1) EP0833735A1 (fr)
JP (1) JPH11507602A (fr)
CA (1) CA2230726A1 (fr)
LU (1) LU88622A1 (fr)
WO (1) WO1996041710A1 (fr)

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BRPI0920783A2 (pt) 2008-10-03 2019-09-24 Athena Automation Ltd sistema de controle de movimento de molde para uma máquina de moldagem por injeção
JP2010149433A (ja) * 2008-12-25 2010-07-08 Toyoda Gosei Co Ltd 型締め機構及び射出成形機
JP5595755B2 (ja) * 2010-03-02 2014-09-24 キヤノン電子株式会社 型締め方法およびその装置ならびにこれを用いた射出成形機
JP5560091B2 (ja) * 2010-05-17 2014-07-23 東芝機械株式会社 成形機のロボット取付装置と、肉盛溶接方法
JP5631669B2 (ja) * 2010-09-03 2014-11-26 小島プレス工業株式会社 多重プレス成形装置
CN102463658B (zh) * 2010-11-04 2014-06-04 百塑企业股份有限公司 射出成型机的模具开合机构
US9649808B2 (en) 2011-11-14 2017-05-16 Irwin Research And Development, Inc. Thermoforming machine having platen locks and method
JP6891212B2 (ja) * 2019-04-15 2021-06-18 日精樹脂工業株式会社 射出装置
CN117207432B (zh) * 2023-09-17 2024-05-28 太仓意欣智能科技有限公司 一种家电生产用注塑机

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Also Published As

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US6210144B1 (en) 2001-04-03
CA2230726A1 (fr) 1996-12-27
JPH11507602A (ja) 1999-07-06
LU88622A1 (de) 1997-01-03
WO1996041710A1 (fr) 1996-12-27

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