Abstract: This mold-clamping device, which is for an injection molding machine in which resin in injected into a cavity of an open mold, after which the mold is closed to carry out molding, is provided with a movable platen capable of moving along an axial direction of tie bars, and a parallelism maintenance mechanism for maintaining parallelism between a fixed mold and a movable mold when the resin is injected. The parallelism maintenance mechanism includes a contraction member which has a spring member and is for generating biasing force causing the fixed mold and the movable mold to separate from each other, and a length adjustment member for adjusting the biasing force generated by the contraction member.

Abstract: A die clamping device for an injection molding machine comprises: a ball screw that is rotated by a motor; a crosshead that is disposed between a rear platen and a movable platen and moves along the axial direction of a tie-bar via the rotation of the ball screw; a toggle link that moves along the axial direction of the movable platen in accordance with the movement of the crosshead; and a crosshead pressing mechanism that presses the crosshead such that the crosshead moves toward the rear platen side.

Abstract: Provided is a mold-clamping device that can inhibit inclination of a platen. A mold-clamping device according to an embodiment is provided with a supporting member that is provided on a base and supports a movable platen. The supporting member is provided with a pillar portion extending away from the base, and a joint portion which extends from the pillar portion toward a fixed platen along an extension direction of a tie bar and is joined to the movable platen.

Abstract: In an injection molding machine including a base, a pivot pin provided on the base, and an injection unit supported by the pivot pin so as to be pivotable relative to the base in a pivoting direction, the injection molding machine is equipped with a rod-shaped member configured to cause the injection unit to pivot in the pivoting direction by pushing the injection unit, and a first support member provided on the base and configured to be screw-engaged with the rod-shaped member.

Abstract: An injection molding machine comprises a safety door (first safety door, second safety door) for enabling an operator to access an inside mechanism (mold clamping mechanism, injection mechanism) when in an open state and preventing the operator from accessing the inside mechanism when in a closed state, the injection molding machine comprising: a display device for displaying an image; and a support mechanism (torque hinge) provided to the safety door, the support mechanism supporting the display device so as to make it possible to change the position or the orientation of the display device relative to the safety door.

Abstract: A safety apparatus includes a safety bar that is capable of moving in a mold clamping direction and a mold opening direction, in conjunction with a moving platen provided with a movable mold, and a latch that contacts the safety bar when a door, which is provided in a cover of an injection molding device, is open, wherein the latch includes a notch in a surface thereof on the mold-opening-direction side.

Abstract: In an injection molding machine including a base, a pivot pin provided on the base, and an injection unit supported by the pivot pin so as to be pivotable relative to the base in a pivoting direction, the injection molding machine is equipped with a rod-shaped member configured to cause the injection unit to pivot in the pivoting direction by pushing the injection unit, and a first support member provided on the base and configured to be screw-engaged with the rod-shaped member.

Abstract: A mold clamping mechanism includes a seal member for sealing in lubricant that has leaked from a through-hole, attached to a peripheral side surface of a tie bar exposed from the moving platen, and a housing that is separate from the moving platen, contacts a surface of the moving platen, and covers the tie bar, from the moving platen to the seal member, and the seal member.

Abstract: A safety apparatus includes a safety bar that is capable of moving in a mold clamping direction and a mold opening direction, in conjunction with a moving platen provided with a movable mold, and a latch that contacts the safety bar when a door, which is provided in a cover of an injection molding device, is open, wherein the latch includes a notch in a surface thereof on the mold-opening-direction side.

Abstract: An injection molding machine includes: a moving platen connected to a rear platen via a toggle link and configured to be moved closer to and away from a stationary platen; a guide rod support provided between the rear platen and the moving platen, and configured to support a guide rod for guiding a cross head of the toggle link; a safety rod fixed to the moving platen and extending toward the guide rod support; and a safety latch provided on the guide rod support and configured to restrict movement of the moving platen by engagement with the safety rod.

Abstract: A clamping device includes: a stationary platen; a rear platen; a tie bar; a moving platen; a toggle mechanism connected to both the rear platen and the moving platen and used for making the moving platen advance and retreat; a guide rod having one end fixed to the rear platen and the other end extending toward the moving platen; a guide rod support supported by the tie bar at a supported part and supporting the guide rod at a supporting part; and a crosshead configured to advance and retreat under guidance by the guide rod. The advance and retreat of the crosshead expands and contracts the toggle mechanism to make the moving platen advance and retreat. The guide rod support is provided in such a manner that the supported part is arranged rearward of the supporting part and closer to the rear platen than the supporting part along a center axis.

Abstract: A clamping device includes: a stationary platen; a rear platen; a tie bar; a moving platen; a toggle mechanism connected to both the rear platen and the moving platen and used for making the moving platen advance and retreat; a guide rod having one end fixed to the rear platen and the other end extending toward the moving platen; a guide rod support supported by the tie bar at a supported part and supporting the guide rod at a supporting part; and a crosshead configured to advance and retreat under guidance by the guide rod. The advance and retreat of the crosshead expands and contracts the toggle mechanism to make the moving platen advance and retreat. The guide rod support is provided in such a manner that the supported part is arranged rearward of the supporting part and closer to the rear platen than the supporting part along a center axis.

Abstract: An injection molding machine includes: a moving platen connected to a rear platen via a toggle link and configured to be moved closer to and away from a stationary platen; a guide rod support provided between the rear platen and the moving platen, and configured to support a guide rod for guiding a cross head of the toggle link; a safety rod fixed to the moving platen and extending toward the guide rod support; and a safety latch provided on the guide rod support and configured to restrict movement of the moving platen by engagement with the safety rod.

Abstract: A mold clamping device of an injection molding machine supports a motor fixing member configured to fix a mold opening/closing motor to a rear platen, on a base frame through a support member and slide plates. When viewed from a direction of a drive shaft of the mold opening/closing motor, the width of the support member is formed to progressively increase outwardly from the motor fixing member toward the base frame, and on a portion of the support member that is located on the base frame side, the slide plates are provided at at least both ends of the portion in a width direction of the support member.

Abstract: A mold clamping device of an injection molding machine supports a motor fixing member configured to fix a mold opening/closing motor to a rear platen, on a base frame through a support member and slide plates. When viewed from a direction of a drive shaft of the mold opening/closing motor, the width of the support member is formed to progressively increase outwardly from the motor fixing member toward the base frame, and on a portion of the support member that is located on the base frame side, the slide plates are provided at at least both ends of the portion in a width direction of the support member.

Abstract: A fixed platen of an injection molding machine is provided with a first leg protruding at a substantially central portion of a lower part and secured to a base frame and second legs protruding left and right. Each of the second legs is provided with a thin portion thinner than the fixed platen. Thus, a deformation difference between the upper and lower sides of the fixed platen caused during nozzle touch operation or when the fixed platen is subjected to a mold clamping force can be reduced.

Abstract: A fixed platen of an injection molding machine is provided with a first leg protruding at a substantially central portion of a lower part and secured to a base frame and second legs protruding left and right. Each of the second legs is provided with a thin portion thinner than the fixed platen. Thus, a deformation difference between the upper and lower sides of the fixed platen caused during nozzle touch operation or when the fixed platen is subjected to a mold clamping force can be reduced.

Abstract: A fixed platen of an injection molding machine is constituted by a mold mounting portion, a tie bar support portion disposed to be spaced apart from the mold mounting portion, and a load transmitting portion that connects the mold mounting portion with the tie bar support portion. Furthermore, the load transmitting portion is constituted by a cross-shaped connecting portion, and an extension connecting portion that extends along the outer circumferential portion of the mold mounting portion.

Abstract: A fixed platen of an injection molding machine is constituted by a mold mounting portion, a tie bar support portion disposed to be spaced apart from the mold mounting portion, and a load transmitting portion that connects the mold mounting portion with the tie bar support portion. Furthermore, the load transmitting portion is constituted by a cross-shaped connecting portion, and an extension connecting portion that extends along the outer circumferential portion of the mold mounting portion.

Abstract: A toggle clamping mechanism for an injection molding machine includes a toggle link, a crosshead connected to the toggle link, and a driving device for driving the crosshead. A ball spline shaft is provided parallel to a ball screw for driving the crosshead. Further, a ball spline nut provided in the crosshead is engaged with the ball spline shaft so that the crosshead may be guided by the ball spline shaft.