JP2013248773A - Mold clamping device, horizontal rotary injection molding machine, and method for mounting movable side mold on index table - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mold clamping device for a horizontal rotary injection molding machine capable of increasing production speed.SOLUTION: In a mold clamping device for a horizontal rotary injection molding machine in which a plurality of movable side molds 43 are mounted on an index table 21, the movable side molds 43 are made to have a cylindrical shape and the index table 21 is made compact and light by mounting the movable side molds 43. The index table 21 is freely rotatably attached to a movable platen 13, and the index table 21 is fitted in such a manner that its central axis of rotation is offset from the center of the movable platen 43, and the movable side molds 43 in an injection step are mounted so that the movable side mold agrees with the center of the movable platen 13.

Description

  The present invention relates to a mold clamping device for a horizontal rotary injection molding machine in which a plurality of movable molds are mounted on an index table, a horizontal rotary injection molding machine including the mold clamping apparatus, and an index of a movable mold. It relates to a method for mounting on a table.

  In general, when mass-produced molded products are manufactured by injection molding, a multi-cavity mold is advantageous because of the large number of molds. On the other hand, the multi-cavity mold is inevitably large, and temperature control is difficult to control, and the filling of the molten resin tends to vary. If the single piece method is adopted, there is no problem of filling balance and a molded product with stable quality can be obtained, but productivity becomes a problem.

  In multi-color molding, insert molding, etc., a rotary type in which multiple molds are mounted on a turntable (synonymous with a rotary table and index table) to increase productivity, and multiple processes are performed simultaneously while rotating them sequentially. Injection molding machines are also used.

  The rotary injection molding machine is divided into a vertical rotary injection molding machine (for example, see Patent Document 1) that opens and closes in the vertical direction and a horizontal rotary injection molding machine (for example, see Patent Document 2) that opens and closes in the horizontal direction. Broadly divided. Various problems have been pointed out in the vertical rotary injection molding machine and the horizontal rotary injection molding machine, and many inventions have been made to solve this problem. For example, a horizontal rotary injection molding machine is different from a vertical rotary injection molding machine in that the eccentricity and inclination of the rotary table are problematic, and a method for solving this problem has been proposed (see, for example, Patent Document 3).

JP 2010-99846 A JP 2009-23285 A JP 2007-21766

  As described above, in the rotary type injection molding machine, many improvements and inventions have been made so far, but it cannot be said that efforts to improve productivity including shortening of cycle time, so-called high cycle, are sufficient. In injection molding, improvement of production speed and high quality molding are eternal issues, and further improvements are expected.

  An object of the present invention is to provide a mold clamping device for a horizontal rotary injection molding machine capable of increasing the production speed, a horizontal rotary injection molding machine including the mold clamping device, and a movable that can be suitably used for the mold clamping device. It is to provide a method for attaching a side mold to an index table.

  The present invention provides a mold clamping device for a horizontal rotary injection molding machine in which a plurality of movable dies are mounted on an index table, wherein the movable dies are formed in a cylindrical shape, and the movable dies are mounted. In the mold clamping device, the index table is reduced in size and weight.

  In the mold clamping device for the horizontal rotary injection molding machine of the present invention, the movable side mold mounted on the index table has a cylindrical shape. Therefore, the index table is provided in comparison with the case where a rectangular parallelepiped movable side mold is mounted. It can be reduced in size and weight. Further, since the movable side mold is cylindrical, the movable side mold itself is also reduced in size and weight, and coupled with the reduction in size and weight of the index table, the rotational moment of the index table equipped with the movable side mold can be reduced. . As a result, the index table can be rotated at a high speed, positioning can be facilitated, and the production speed can be increased. Further, since the movable side mold is small and light, the movable side mold can be easily replaced, and the productivity can be improved.

  In the mold clamping apparatus of the present invention, the index table is provided with a fitting recess for fixing the movable mold, and the lower part of the movable mold is fitted into the fitting recess, and the clamp is clamped. It is characterized by being fixed to the index table with one fixing bolt without using a jig.

  According to the present invention, the movable side mold is fixed to the index table by the fitting structure using unevenness and one fixing bolt, so that a large space is provided on the index table as in the clamp structure. There is no need to provide it. For this reason, the index table can be reduced in size and weight, and a high cycle can be achieved, thereby improving productivity. Furthermore, since the movable mold can be attached and detached with one fixing bolt, the exchange time of the movable mold is shortened, and productivity can be improved from this point.

  In the mold clamping device of the present invention, the index table is rotatably attached to a movable platen, the central axis of the index table is offset from the center of the movable platen, and the movable side mold is An indexing operation is performed so as to coincide with the center of the movable platen.

  The mold clamping apparatus of the present invention is provided so that the rotation center axis of the index table is offset from the center of the movable platen, and the centers of the injection nozzle, the movable platen, and further the four tie bars coincide. The movable platen, movable side mold, fixed platen, fixed side mold, and injection nozzle are arranged in a straight line, so that the clamping force is evenly distributed over the four tie bars. The surface pressure distribution generated when the is closed can be made constant. Therefore, the movable platen can be reduced in size, and the mold opening / closing speed can be increased. This enables a high cycle and improves productivity.

  In the mold clamping device of the present invention, the heating means of the movable mold is a band heater.

  According to the present invention, since the band heater can be used for heating the movable mold, uniform heating becomes possible. Since the movable mold can be heated uniformly, temperature adjustment is easy and high quality molding is possible. Furthermore, since the mounting is simple and almost no space for mounting is required, the index table can be reduced in size and weight. This enables a high cycle and improves productivity.

  In the mold clamping device of the present invention, the movable mold is an insert molding mold, and three or more movable molds are mounted on the index table, and the movable mold is a center. It is equipped with a center pin for loading the insert disposed in the ejector pin and an ejector pin for releasing the molded product from the mold, and by inserting three movable side molds, the insert supply, injection operation, It is characterized in that the insert supply, injection operation, gate processing, and ejector operation can be performed simultaneously while the mold is tightened by mounting four movable molds at the same time.

  According to the present invention, since the insert supply, the injection operation, and the ejector operation can be performed at the same time while the mold is tightened, and further the gate processing can be performed at the same time as necessary, the mold clamping device of the present invention is provided. By using it, productivity of insert molding can be improved.

  In addition, the present invention is a horizontal rotary injection molding machine including the mold clamping device and an injection device.

  By using the horizontal rotary type injection molding machine of the present invention, it becomes possible to increase the cycle of injection molding.

  Further, the present invention provides an index table on which a movable movable mold having a cylindrical shape is provided with a fitting recess for fitting the movable mold, and a female screw penetrating from the side surface of the index table to the fitting recess. An index of the movable mold, wherein the movable mold is fixed to the index table by a single fixing bolt that fits the movable mold into the fitting recess and is screwed into the female screw. It is a method of mounting on a table.

  According to the present invention, the movable side mold can be fixed to the index table by the fitting structure using unevenness and the single fixing bolt, so that a large space is provided on the index table as in the clamp structure. Is not necessary. For this reason, the index table can be reduced in size and weight. Furthermore, since the movable mold can be attached and detached with one fixing bolt, the exchange time of the movable mold is shortened. If this method of attaching the movable mold to the index table is used in a mold clamping device equipped with an index table, and further in a horizontal rotary injection molding machine, a high cycle can be achieved and productivity is improved.

  The production speed can be increased by using the mold clamping device for the horizontal rotary injection molding machine of the present invention, the horizontal rotary injection molding machine including the mold clamping device, and the method of attaching the movable mold to the index table. it can.

1 is a perspective view of a horizontal rotary injection molding machine 1 that is a first embodiment of the present invention. It is the top view and front view of the horizontal type rotary injection molding machine 1 of FIG. It is a front view of the index table 21 which mounted the movable side metal mold | die 43 of the horizontal type | mold rotary injection molding machine 1 of FIG. It is sectional drawing of the index table 21 carrying the movable side metal mold | die 43 of the horizontal type | mold rotary injection molding machine 1 of FIG. It is a perspective view of the movable side metal mold | die 43 used with the horizontal type | mold rotary type injection molding machine 1 of FIG. It is a figure for demonstrating operation | movement of the horizontal type | mold rotary injection molding machine 1 of FIG. It is a figure for comparing the magnitude | size of the index table 21 which mounts the movable mold 43 of this invention, and the index table which mounts a rectangular parallelepiped mold.

  FIG. 1 is a perspective view of a horizontal rotary injection molding machine 1 according to the first embodiment of the present invention. 2A is a plan view of the horizontal rotary injection molding machine 1, and FIG. 2B is a front view of the horizontal rotary injection molding machine 1. FIG. 3 and 4 are a front view of the index table 21 on which the movable mold 43 of the horizontal rotary injection molding machine 1 is mounted and a cross-sectional view of the index table 21 on which the movable mold 43 is mounted. FIG. 5 is a perspective view of the movable side mold 43 used in the horizontal rotary injection molding machine 1, and FIG. 6 is a diagram for explaining the molding operation of the horizontal rotary injection molding machine 1.

  First, the entire configuration of the horizontal rotary injection molding machine 1 will be described, and then the index table 21 that is a characteristic part of the horizontal rotary injection molding machine 1 and the movable die 43 mounted on the index table 21 will be described in detail.

  The horizontal rotary injection molding machine 1 according to the first embodiment of the present invention is a rotary injection molding machine that performs insert molding. A plurality of movable molds 43 are mounted on the index table 21, and the index table 21. Insert molding is performed while sequentially rotating the.

  The horizontal rotary injection molding machine 1 includes a mold clamping device 3 that opens and closes a mold, and a screw type injection device (hereinafter referred to as an injection device) 5 that injects and fills a resin with a mold. 9 are arranged so as to be aligned horizontally. The control device 7 controls the driving device (not shown), the temperature adjusting device, and the like provided in the mold clamping device 3 and the injection device 5.

  The mold clamping device 3 includes a fixed platen (fixed platen) 11 for attaching a fixed mold, a movable platen (movable platen) 13 for attaching an index table 21, and an end housing (not shown). The housing is connected by four tie bars 15. The movable platen 13 is located between the fixed platen 11 and the end housing, and is inserted into the tie bar 15 through four insertion holes 14 provided at four corners, and moves to the fixed platen 11 side or the end housing side using the tie bar 15 as a guide.

  Between the end housing and the movable platen 13 is provided a toggle mechanism (not shown) that is driven by an electric motor that moves the movable platen 13 forward and backward. The movable platen 13 is attached to the movable platen 43 and the fixed platen 11 on the index table 21 attached to the movable platen 13 by driving the electric motor via the control device 7 and moving the movable platen 13 forward and backward via the toggle mechanism. Open and close the fixed mold.

  The index table 21 is rotatably attached to the movable platen 13, and a movable die 43 is attached to the front surface (surface facing the fixed platen 11) 23.

  The mold is composed of a fixed mold attached to the fixed platen 11 and a movable mold 43 mounted on the index table 21. The mold shown here is a mold for insert molding in which gate processing is performed at the same time, and the fixed-side mold is composed of a fixed side insert 41 for molding and a fixed side insert 42 for gate processing, and a movable side mold 43. Includes four movable molds 43. The molding fixed side insert 41 is attached to the central portion of the fixed platen 11. The four movable molds 43 are made of the same mold, and are arranged on the front surface 23 of the index table 21 at a 90 ° pitch and at an equidistant position from the rotary shaft 33.

  As described above, the basic configuration of the horizontal rotary injection molding machine 1 is the same as that of a conventional horizontal rotary injection molding machine. Hereinafter, the index table 21 which is a characteristic part of the horizontal rotary injection molding machine 1 and the movable mold 43 mounted on the index table 21 will be described in detail.

  The index table 21 has a thick disk shape and includes a rotation shaft (index table shaft) 33 at the center, and the rotation shaft 33 is rotatably supported by a bearing (not shown) provided on the movable platen 13. Has been. A rotation gear (not shown) or the like is provided on the side surface 27 of the index table 21 over the entire circumference. An electric servo motor (not shown) for driving the index table 21 is attached to the movable platen 13, and a drive gear (not shown) mounted on the electric servo motor meshes with a rotating gear provided on the index table 21. The index table 21 is driven by an electric servo motor.

  The front surface 23 of the index table 21 is provided with four columnar recesses 29 for fixing the movable side mold 43 on a concentric circle at a 90 ° pitch. The concave portion 29 is formed so that a cylindrical movable side mounting plate 49 that is a fitting portion of the cylindrical movable side mold 43 is fitted without a gap, and when the movable side mold 43 is fitted into the concave portion 29, The movable mold 43 fits into the recess 29 without wobbling.

  The recess 29 is provided with a female screw 31 into which a fixing bolt 37 for fixing the movable mold 43 fitted in the recess 29 is screwed. The female screw 31 connects the side surface 27 of the index table 21 and the recess 29, and is provided in an inclined state so that the movable mold 43 fitted in the recess 29 can be pressed against the movable platen 13 side.

  A slip ring 35 is attached to the center of the front surface of the index table 21. The slip ring 35 is for supplying power to the band heater 61 attached to the movable mold 43.

  The movable mold 43 is a cylindrical mold, and a movable insert 44 engraved with a molded shape is held by a cylindrical movable mold 45. Between the cylindrical movable side mold plate 45 and the cylindrical movable side mounting plate 49, a cylindrical heat insulating plate 46 that insulates between the cylindrical movable side mold plate 45 and the cylindrical movable side mounting plate 49, and a protrusion. A cylindrical spacer block 47 is attached to maintain a space for operation.

  A center pin 53 for holding insert parts and performing gate processing is provided at the center of the movable mold 43. The center pin 53 is movably inserted into a through hole provided in the center of the ejector sleeve 54 that takes out a molded product from the mold. The movable die 43 is provided with an ejector pin 55 for taking out a molded product from the die, and the ejector sleeve 54 and the ejector pin 55 are attached to a cylindrical ejector plate 56. Further, a coil spring 57 for forcibly returning the cylindrical ejector plate 56 after molding and a coil spring 58 for forcibly returning the center pin 53 after molding are provided.

  The cylindrical movable side mounting plate 49 of the movable side mold 43 is a fitting portion that fits into the recess 29 provided in the index table 21. The cylindrical movable side mounting plate 49 is provided with a bolt abutting portion 51 with which the tip of the fixing bolt 37 abuts. The bolt contact portion 51 is an inclined surface formed by partially removing the outer wall of the cylindrical movable mounting plate 49, and is provided so as to be orthogonal to the axial direction of the fixing bolt 37. As a result, the entire tip of the fixing bolt 37 comes into contact with the movable mold 43, and the movable mold 43 can be firmly fixed to the index table 21.

  Since both the cylindrical movable side mounting plate 49 of the movable side mold 49 and the concave portion 29 provided in the index table 21 are cylindrical and adopts a fitting structure using concaves and convexes, positioning is naturally performed only by fitting. . In addition, since it has a cylindrical concave / convex fitting structure, the position of the movable mold 43 and the index table 21 does not shift even when fixed with one fixing bolt 37, and the reproducibility of the mold mounting position is Very expensive. Since the movable die 43 can be attached to and detached from the index table 21 with a single fixing bolt 37, the replacement time of the movable die 43 can be shortened and the productivity can be improved.

  In the horizontal rotary injection molding machine 1, a cylindrical mold is adopted as the movable side mold 43, and a concave-convex fitting structure is adopted as a method for fixing the movable side mold 43 to the index table 21. Since the movable mold 43 is fixed to the index table 21 by the bolt 37, it is not necessary to provide a space for fixing the movable mold 43 to the index table 21.

  The cylindrical mold can reduce the size of the cross section as compared with a rectangular parallelepiped mold. In particular, when the cross-sectional shape of the molded product is a circle or a polygonal shape having 5 or more corners, a cylindrical mold can be used preferably with little useless space.

  Here, the mounting method of the movable mold 43 to the index table 21 shown in the present embodiment, and the mounting system using a cuboid mold for the movable mold and a clamp that has been generally used conventionally. Compare the size of the index table required when using.

  FIG. 7 is a diagram for comparing the sizes of the index table 21 on which the movable mold 43 of the present invention is mounted and the index table on which a rectangular parallelepiped mold is mounted. FIG. The figure which shows the attachment point to the index table 21 of the movable side metal mold | die 43 shown to a form, (B) is a figure which shows the point which attaches a rectangular parallelepiped metal mold | die to an index table with a clamp. In (B), 101 is a rectangular parallelepiped mold, 102 is a mounting plate for the rectangular parallelepiped mold 101, and 103 is a clamp.

  Table 1 is a comparison table of index table sizes and the like based on the two mounting methods, and shows the outer diameter d of the movable mold 43 and the diameter D of the index table as a ratio to the molded product diameter p. is there. In the case of the rectangular parallelepiped mold 101, the comparison is made with the mounting plate 102 included. The mounting plate 102 has two orthogonal sides a and b.

  As can be seen from Table 1, when a cylindrical mold is used, the diameter of the mold can be reduced by about 30% compared to the case of using a rectangular parallelepiped mold. Similarly, when the method of attaching the movable side mold 43 to the index table 21 shown in the present embodiment is adopted, the index table diameter is about 30% compared to the case where a rectangular parallelepiped mold is attached to the index table with a clamp. The area can be reduced to about 1/2.

  As described above, in the horizontal rotary injection molding machine 1, the area of the index table 21 can be reduced to about half that of the conventional index table, and the movable mold 43 is attached to the index table 21. Since the clamp is not required, the index table 21 can be reduced in weight. Furthermore, since the movable mold 43 to be mounted is reduced in weight, the index table 21 on which the movable mold 43 is mounted can be reduced in weight.

  The reduction in size and weight of the index table 21 on which the movable mold 43 is mounted leads to a reduction in rotational moment, and enables the index table 21 to rotate at high speed. Furthermore, since the rotational moment when rotating the index table 21 is small, positioning is also easy. This makes it possible to shorten the cycle time and improve productivity.

  When the index table 21 on which the movable mold 43 is mounted is reduced in size and weight, the movable platen 13 on which the index table 21 is mounted can also be reduced in size. Furthermore, since the electric servo motor, the gear mechanism, and the like that rotate the index table 21 can be reduced in size, the movable platen 13 including the index table 21 and the like can be reduced in weight. As a result, the mold opening / closing speed can be increased and the productivity is improved.

  Further, by making the movable side mold 43 cylindrical, as shown in Table 1, the diameter can be reduced by about 30% as compared with the case where a rectangular parallelepiped mold is used. Since the movable side mold 43 is reduced in size and weight, transportation and replacement work are facilitated, and productivity is also improved in this respect.

  A band heater 61 for heating the movable mold 43 from the outside is attached to the upper outer wall of the movable mold 43. The band heater 61 is a cylindrical band heater 61 and surrounds the entire circumference of the upper outer wall of the movable mold 43. As the band heater 61 used here, a band heater that is conventionally attached to a cylindrical member or a columnar member can be used.

  Since the band heater 61 is provided with a tightening band 63 that covers the heater, the band heater 61 can be fixed to the movable mold 43 without a gap by tightening the tightening band 63. Moreover, since the electrode has a cylindrical shape, the electrode position of the band heater 61 is free, and the electrodes of the four band heaters 61 can be arranged without causing interference. The band heater 61 has a simple mounting method and requires almost no space for mounting the band heater 61. Therefore, the index table 21 can be reduced in size and weight.

  In the case of a conventional rectangular parallelepiped movable side mold, since a rod-like heater is attached and heated, temperature unevenness is likely to occur on the movable side mold itself and the cavity surface 50. However, the movable side mold 43 of this embodiment is Further, since it has a cylindrical shape and uses the band heater 61 for heating, the movable side mold 43 itself and the cavity surface 50 can be heated uniformly. Furthermore, since uniform heating is possible, temperature control is easy, and a high-quality molded product can be manufactured within a short time.

  In the horizontal rotary injection molding machine 1, as shown in FIG. 3, the index table 21 on which the movable mold 43 is mounted is provided eccentrically with respect to the movable platen 13. Specifically, among the movable side molds 43 mounted on the index table 21, the movable side mold 43 in the molding (injection) step is attached so as to coincide with the center of the movable platen 13. The four movable dies 43 are arranged at an equal distance from the rotation shaft 33 of the index table 21, and the index table 21 is indexed so that the movable dies 43 sequentially coincide with the center of the movable platen 13. I do.

  The arrangement shown in FIG. 3 is an arrangement that can be made only after the index table 21 is downsized. When the movable side mold 43 is a rectangular parallelepiped, the index table 21 on which the movable side mold 43 is mounted is relatively large compared to the cylindrical mold, so that the index table 21 is attached eccentrically with respect to the movable platen 13. The index table 21 must be extremely large. For this reason, the conventional rotary injection molding machine employs an arrangement in which the center of the movable platen 13 coincides with the center of the index table 21 or one tie bar 15 is used as the rotation center axis of the index table 21.

  The index table 21 is attached to the movable platen 13 so that the movable-side mold 43 in the molding (injection) step of the mounted movable-side mold 43 coincides with the center of the movable platen 13. The centers of the injection nozzle 4, the movable platen 13, and the four tie bars 15 coincide. The movable platen 13, the movable mold 43, the fixed platen 11, and the injection nozzle 4 are arranged in a straight line so that the clamping force is evenly distributed to the four tie bars 15, and the movable mold 43, the fixed mold The surface pressure distribution generated when the mold is closed can be made constant. Therefore, the movable platen 13 can be reduced in size, and the mold opening / closing speed can be increased. This enables a high cycle and improves productivity.

  The horizontal rotary injection molding machine 1 having the above-described configuration performs insert supply, molding (injection) operation, gate processing, and ejector operation while the mold is tightened. Specifically, in the arrangement of the movable mold 43 shown in FIG. 3, the insert is supplied at the upper position, the injection is performed at the position rotated 90 ° clockwise (FIG. 6A), and further 90 °. And the gate processing (FIG. 6B) is performed by the center pin 53 at the lowest position. Thereafter, the molded product (product) is taken out by the ejector sleeve 54 and the ejector pin 55 (FIG. 6C) at a position rotated 90 ° clockwise.

  Since the horizontal rotary injection molding machine 1 can perform each operation with the four movable molds 43 with the molds tightened, the production speed can be increased. In the horizontal rotary injection molding machine 1, since the index table 21 is mounted eccentrically with respect to the movable platen 13, the movable side mold 43 at the position where the ejector operation is performed is the side of the movable platen 13. Located in the vicinity. For this reason, the molded product can be easily taken out.

  As described above, the mold clamping device for a horizontal rotary injection molding machine of the present invention, the horizontal rotary injection molding machine, makes the movable side mold itself and the movable side mold by making the movable side mold cylindrical. It is characterized by the fact that the mounted index table is smaller and lighter, has high cycle molding, and has increased production speed. In addition, the movable side mold has a cylindrical shape, and the movable side mold can be fixed to the index table with a fitting structure using irregularities and a single fixing bolt. There are features. Further, there is a feature in that an index table mounted with a movable mold is provided eccentrically with respect to the movable platen, and a band heater is used for heating the movable mold.

  The horizontal rotary injection molding machine according to the present invention is not limited to the above embodiment, and can be changed without changing the gist of the present invention. For example, in the above embodiment, four movable-side molds are arranged and insert molding is performed in which insert supply, molding (injection) operation, gate processing, and ejector operation are performed simultaneously. However, three movable-side molds are disposed. Insert molding, in which insert supply, molding (injection) operation, and ejector operation are performed simultaneously, is also possible. In the above embodiment, a horizontal rotary injection molding machine that performs insert molding has been shown. However, for multicolor molding, multilayer molding, etc., the mold clamping device for the horizontal rotary injection molding machine of the present invention, horizontal rotary injection molding. The mounting method of the machine and the movable side mold to the index table can be preferably used.

DESCRIPTION OF SYMBOLS 1 Horizontal type rotary injection molding machine 3 Clamping apparatus 4 Injection nozzle 5 Injection apparatus 7 Control apparatus 9 Bed 11 Fixed platen (fixed platen)
13 Movable platen (movable platen)
14 Insertion hole 15 Tie bar 21 Index table 23 Index table front surface 27 Index table side surface 29 Recess 31 Female screw 33 Rotating shaft 35 Slip ring 37 Fixing bolt 41 Fixed side insert 42 Fixed side insert 43 Movable side insert 44 Movable side insert 45 Cylinder Mold movable side mold plate 46 Cylindrical heat insulating plate 47 Cylindrical spacer block 49 Cylindrical movable side mounting plate 50 Cavity surface 51 Bolt contact portion 53 Center pin 54 Ejector sleeve 55 Ejector pin 56 Cylindrical ejector plate 57 Coil spring 58 Coil spring 61 Band heater 63 Clamping band

Claims (7)

In a mold clamping apparatus for a horizontal rotary injection molding machine in which a plurality of movable molds are mounted on an index table,
A mold clamping apparatus, wherein the movable side mold is formed in a cylindrical shape, and the index table is reduced in size and weight by mounting the movable side mold. The index table is provided with a fitting recess for fixing the movable mold.
2. The movable mold according to claim 1, wherein a lower part of the movable mold is fitted into the fitting recess, and is fixed to the index table with a single fixing bolt without using a clamp jig. Mold clamping device. The index table is rotatably attached to the movable platen,
The index table performs an indexing operation so that a rotation center axis is offset from a center of the movable platen and the movable mold coincides with the center of the movable platen. Mold clamping device.   The mold clamping apparatus according to any one of claims 1 to 3, wherein the heating means of the movable mold is a band heater. The movable mold is an insert mold, and three or more movable molds are mounted on the index table,
The movable side mold includes a center pin for loading an insert disposed at the center, and an ejector pin for releasing a molded product from the mold,
Insert supply, injection operation and ejector operation with three movable side molds tightened and inserts inserted with four movable side molds at the same time The mold clamping device according to any one of claims 1 to 4, wherein supply, injection operation, gate processing, and ejector operation can be performed simultaneously. A mold clamping device according to any one of claims 1 to 5,
An injection device;
A horizontal rotary injection molding machine. An index table for mounting a movable movable mold having a cylindrical shape is provided with a fitting recess for fitting the movable mold, and a female screw penetrating from the side surface of the index table to the fitting recess is provided.
An index table for a movable mold, wherein the movable mold is fixed to the index table by a single fixing bolt that is fitted into the fitting recess and is screwed into the female screw. Installation method to.

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