Abstract: A molding machine includes: a tie bar connected continuously to any one of a stationary platen and a movable platen, and including an engagement groove; a first engagement member configured to engage with or move away from the engagement groove of the tie bar; a second engagement member configured to engage with or move away from the engagement groove of the tie bar, and configured to be displaceable in an axial direction of the tie bar; a force transmission member located opposite the first engagement member across the second engagement member, and including a pressure surface to press the second engagement member and a through hole in which the tie bar is inserted; and a drive mechanism configured to use the force transmission member to cause the second engagement member to be displaceable in the axial direction of the tie bar with respect to the first engagement member.

Abstract: A molding machine includes: a tie bar connected continuously to any one of a stationary platen and a movable platen, and including an engagement groove; a first engagement member configured to engage with or move away from the engagement groove of the tie bar; a second engagement member configured to engage with or move away from the engagement groove of the tie bar, and configured to be displaceable in an axial direction of the tie bar; a force transmission member located opposite the first engagement member across the second engagement member, and including a pressure surface to press the second engagement member and a through hole in which the tie bar is inserted; and a drive mechanism configured to use the force transmission member to cause the second engagement member to be displaceable in the axial direction of the tie bar with respect to the first engagement member.

Abstract: Provided is a molding machine including a mold opening/closing mechanism configured to move a movable platen to be attached with a movable mold to a stationary platen to be attached with a stationary mold, and a clamping mechanism to perform a clamping process, and is intended to suppress machine cost or ensure the mold opening/closing speed. The molding machine includes the mold opening/closing mechanism configured to move the movable platen to be attached with the movable mold to the stationary platen to be attached with the stationary mold, and the clamping mechanism configured to perform a clamping process. The mold opening/closing mechanism includes at least two ball screws, at least two electric motors that respectively drive the ball screws, and a ball screw nut into which each of the ball screws is inserted.

Abstract: A rotary mold type injection molding machine and a method for exchanging molds of a rotary mold type injection molding machine. The rotary mold type injection molding machine includes a fixed platen, a movable platen which is opened and closed in a horizontal direction with respect to the fixed platen, and a rotary table to which a plurality of molds is mounted and which is rotatably provided on one of the fixed platen and the movable platen. The rotary mold type injection molding machine further includes: a mold member which is configured of a plurality of molds and mold mounting plates to which the plurality of molds is mounted; and a mounting portion which is provided on the rotary table provided on one of the fixed platen and the movable platen and on which the mold mounting plate is mounted when the mold member is fixed.

Abstract: Provided is a molding machine including a mold opening/closing mechanism configured to move a movable platen to be attached with a movable mold to a stationary platen to be attached with a stationary mold, and a clamping mechanism to perform a clamping process, and is intended to suppress machine cost or ensure the mold opening/closing speed. The molding machine includes the mold opening/closing mechanism configured to move the movable platen to be attached with the movable mold to the stationary platen to be attached with the stationary mold, and the clamping mechanism configured to perform a clamping process. The mold opening/closing mechanism includes at least two ball screws, at least two electric motors that respectively drive the ball screws, and a ball screw nut into which each of the ball screws is inserted.

Abstract: A rotary mold type injection molding machine and a method for exchanging mold members of a rotary mold type injection molding machine are provided which enable relatively easy mold member exchange in a short time. The rotary mold type injection molding machine includes a fixed platen, a movable platen which is opened and closed in a horizontal direction with respect to the fixed platen, and a rotary table to which mold members are mounted and which is rotatably provided on one of the fixed platen and the movable platen. A mold-member moving mechanism which horizontally moves the mold member upon mold member exchange is provided on the rotary table.

Abstract: A rotary mold type injection molding machine and a method for exchanging molds of a rotary mold type injection molding machine. The rotary mold type injection molding machine includes a fixed platen, a movable platen which is opened and closed in a horizontal direction with respect to the fixed platen, and a rotary table to which a plurality of molds is mounted and which is rotatably provided on one of the fixed platen and the movable platen. The rotary mold type injection molding machine further includes: a mold member which is configured of a plurality of molds and mold mounting plates to which the plurality of molds is mounted; and a mounting portion which is provided on the rotary table provided on one of the fixed platen and the movable platen and on which the mold mounting plate is mounted when the mold member is fixed.

Abstract: [PROBLEM] To provide a method of molding a composite molded article enabling compression molding without requiring a large sized injection molding machine and a mold system used for that. [MEANS FOR SOLUTION] A method of molding a composite molded article using a first mold member 13 to mold a primary molded article 29 by primary molding, switching a movable mold member 14 holding the primary molded article 29 with a movable mold member 14 positioned with a second mold member 15, then using a second mold member 15 in which the primary molded article 29 is inserted to mold a secondary molded article 30 by secondary molding, wherein the primary molding and the secondary molding are executed by non-continuous different steps at points of time different from each other.

Abstract: [PROBLEM]To provide a method of molding a composite molded article enabling compression molding without requiring a large sized injection molding machine and a mold system used for that. [MEANS FOR SOLUTION]A method of molding a composite molded article using a first mold member 13 to mold a primary molded article 29 by primary molding, switching a movable mold member holding the primary molded article 29 with a movable mold member 14 positioned with a second mold member 15, then using a second mold member 15 in which the primary molded article 29 is inserted to mold a secondary molded article 30 by secondary molding, wherein the primary molding and the secondary molding are executed by non-continuous different steps at points of time different from each other.

Abstract: [Problem] To provide a method of molding a composite molded article enabling compression molding without requiring a large sized injection molding machine and a mold system used for that. [Means for Solution] A method of molding a composite molded article using a first mold member 13 to mold a primary molded article 29 by primary molding, switching a movable mold member holding the primary molded article 29 with a movable mold member 14 positioned with a second mold member 15, then using a second mold member 15 in which the primary molded article 29 is inserted to mold a secondary molded article 30 by secondary molding, wherein the primary molding and the secondary molding are executed by non-continuous different steps at points of time different from each other.

Abstract: A mold clamping system using mold opening and closing mechanisms to move a movable platen toward a fixed platen, engaging half nuts with engagement parts formed at tie bars, and using clamping cylinders to pull tie bars and clamp the mold, provided with position adjustment rods arranged on the opposite sides from the mold attachment surfaces of pistons of the clamping cylinders, a plurality of adjustment cylinders arranged, in parallel with the position adjustment rods, on the fixed platen or movable platen at the side where the clamping cylinders are arranged, and connection members connecting rods of the adjustment cylinders and the position adjustment rods, whereby the mold clamping system is shortened in overall length and simple mechanisms are used to control the position adjustment of the tie bars with a high precision.

Abstract: A mold clamping system using mold opening and closing mechanisms to move a movable platen toward a fixed platen, engaging half nuts with engagement parts formed at tie bars, and using clamping cylinders to pull tie bars and clamp the mold, provided with position adjustment rods arranged on the opposite sides from the mold attachment surfaces of pistons of the clamping cylinders, a plurality of adjustment cylinders arranged, in parallel with the position adjustment rods, on the fixed platen or movable platen at the side where the clamping cylinders are arranged, and connection members connecting rods of the adjustment cylinders and the position adjustment rods, whereby the mold clamping system is shortened in overall length and simple mechanisms are used to control the position adjustment of the tie bars with a high precision.

Abstract: A clamping apparatus 30 has a driving plate 31 provided with a securing device 40 for securing tie rods 13 in a predetermined position in the axial direction, and a clamping drive device 50 for pressing a movable platen 12. The driving plate 31 is guided by guide bars 15, secured to the movable platen 12, in the axial direction. Rear parts of the guide bars 15 are secured to an adjusting plate 32 which is provided with a positioning means 60 for adjusting and holding a distance S between the driving plate 31 and the movable platen 12.

Abstract: A clamping apparatus 30 has a driving plate 31 provided with a securing device 40 for securing tie rods 13 in a predetermined position in the axial direction, and a clamping drive device 50 for pressing a movable platen 12. The driving plate 31 is guided by guide bars 15, secured to the movable platen 12, in the axial direction. Rear parts of the guide bars 15 are secured to an adjusting plate 32 which is provided with a positioning means 60 for adjusting and holding a distance S between the driving plate 31 and the movable platen 12.