JP4516143B2 - Injection molding machine with a control device on the machine base - Google Patents

Description

  The present invention relates to a mounting mechanism for a control device provided in an injection molding machine.

  In the electric injection molding machine, since there are no components such as a pump and an accumulator as compared with the hydraulic injection molding machine, there is more free space in one machine base. A control device of an electric injection molding machine (hereinafter referred to as “injection molding machine”) is arranged in this empty space. As a method for mounting the control device on the injection molding machine, as disclosed in the following publicly known documents, there are a method of separating and independent from the machine base of the injection molding machine, or a method of installing in the upper part or the upper part of the machine base.

  In Patent Documents 1 and 2, when installing the control device inside the machine base, there is a technique for inserting a shock absorber between the machine base on which the drive source is mounted and the control device in order to reduce vibration of the control device. It is disclosed. Patent Document 3 discloses a technique in which an installation stand separate from the machine base is provided inside the machine base and the control device is mounted.

  Patent Document 4 discloses a structure of a machine base in which a longitudinal end portion of a lower frame of the machine base is opened in order to accommodate peripheral devices (temperature controller) of the injection molding machine.

JP 2000-185335 A Japanese Utility Model Publication No. 61-107512 JP 2000-10951 A Japanese Patent Application Laid-Open No. 5-192956

  If the control device is installed inside the machine base, the frame members that make up the machine base of the injection molding machine will be in the way, and when manufacturing the injection molding machine at the factory, the operators will be extremely difficult and careful. Request. Even when repairing and inspecting work, it is necessary to release the fixing means for fixing the control device each time the work for removing the control device from the machine base is performed, and the operator must perform troublesome work.

  Therefore, an object of the present invention is to provide an injection molding machine in which a control device is mounted in a machine base of an injection molding machine and can be easily assembled, repaired and inspected in a factory.

  The invention according to claim 1 of the present application is the injection molding machine including a control unit for controlling the injection molding machine on the machine base, wherein the injection unit and the mold clamping unit are arranged and mounted on the machine base in the longitudinal direction. The machine base has a rectangular parallelepiped structure composed of an upper frame, a lower frame, and a column supporting the upper frame, and the upper frame includes a pair of longitudinal members made of H-shaped steel in the longitudinal direction and a lateral member in the lateral direction. At least one end side of both ends of the pair of longitudinal members of the frame is opened, and the upper frame having the control device attached to the lower surface thereof is attached across the flange portion of the H-shaped steel that is the pair of longitudinal members of the upper frame. This is an injection molding machine equipped with a control device on the machine base.

The invention according to claim 2 is an injection molding machine comprising an injection unit and a mold clamping unit arranged in a longitudinal direction of the machine base and mounted with a control device for controlling the injection molding machine on the machine base. ,
The machine base has a rectangular parallelepiped structure composed of an upper frame, a lower frame, and a column supporting the upper frame, and the lower frame includes a pair of longitudinal members made of H-shaped steel in the longitudinal direction and a lateral member in the lateral direction, At least one end side of both ends of the pair of longitudinal members of the lower frame is opened, and the lower frame having the control device attached to the upper surface thereof is attached across the flange portion of the H-shaped steel which is the pair of longitudinal members of the lower frame. This is an injection molding machine having a control device on a machine base.

  According to a third aspect of the present invention, there is provided an upper frame and a lower frame in which H-shaped steel is used for the longitudinal members of the upper frame and the lower frame of the machine base and the control device is attached to the lower surface and the upper surface, respectively. It is an injection molding machine provided with a control device on the machine base according to any one of claims 1 and 2, wherein the pair of longitudinal members of the lower frame is mounted across the flange portion of the H-shaped steel. .

  According to a fourth aspect of the present invention, the upper frame is a plate-like member that covers a partial region between a pair of H-shaped steels that are longitudinal members of the upper frame of the machine base, and the upper part of the control device is the upper frame. It is the injection molding machine provided with the control apparatus in the machine base as described in any one of Claim 1 or 3 characterized by the above-mentioned.

  According to a fifth aspect of the present invention, the lower frame is a plate-like member that covers a partial region between a pair of H-shaped steels that are longitudinal members of the lower frame of the machine base, and the lower part of the control device is the lower frame. It is an injection molding machine provided with the control apparatus in the machine base as described in any one of Claim 2 or 3 characterized by the above-mentioned.

  The invention according to claim 6 is the injection molding machine according to any one of claims 1 to 5, wherein a control device is provided on a machine base in which a shock absorber is inserted between the flange of the H-shaped steel as a longitudinal member and the lower frame or the upper frame. It is.

  The invention according to claim 7 is the injection molding according to any one of claims 1 to 6, wherein the control device is provided in a machine base in which a shock absorber is inserted in a gap existing in a longitudinal direction between the frame to which the machine base and the control device are attached. Machine.

  The invention according to claim 8 is the injection molding machine according to any one of claims 1 to 7, wherein a control device is provided on a machine base in which a shock absorber is inserted between the H-shaped steel web as a longitudinal member and the lower frame or the upper frame. It is.

  According to the present invention, it is possible to provide an injection molding machine in which a control device is mounted in a machine base of an injection molding machine and can be easily assembled, repaired and inspected in a factory.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a view showing a state before a frame to which a control device is attached is assembled to an injection molding machine in the present invention. In the following description, the longitudinal direction is the direction indicated by reference numeral 12, and the horizontal direction is the direction indicated by reference numeral 13.

  On the machine base 1, an injection unit 20 and a mold clamping unit 30 are mounted on the upper part of the machine base 1 in the longitudinal direction. The machine base 1 forms a rectangular parallelepiped structure from an upper frame 5, a lower frame 6, and a support column 9 that supports the upper frame.

The upper frame 5 has a structure including a pair of longitudinal members 8 a and 8 b and a lateral member 7. On the upper side of the upper frame 5, as shown in FIG. 1, the injection unit 20 and the mold clamping unit 30 are arranged and mounted in the longitudinal direction 12 of the longitudinal members 8a and 8b across the longitudinal member 8a and the longitudinal member 8b. Has been. The longitudinal members 8a and 8b can be configured using H-shaped steel. As shown in FIG. 1, the H-shaped steel includes an upper flange 80a, a web 80b, and a lower flange 80c. In FIG. 1, the transverse member 7 is hidden under the mold clamping unit 30. The transverse member 7 is not disposed at one end of the longitudinal members 8a and 8b on the side where the injection unit 20 is mounted, and the one end forms an opening. Hereinafter, the opening (the right side of the drawing) between the longitudinal members 8a and 8b of the upper frame 5 is referred to as a first opening 10a. H-shaped steel can be used as the transverse member 7 in the same manner as the longitudinal members 8a and 8b. The transverse member 7 is not limited to being configured using H-shaped steel. Moreover, although a horizontal member is also a structural member of the lower frame 6 mentioned later, those horizontal members are also called the horizontal member 7 including them.

  The lower frame 6 has a structure including a pair of longitudinal members 8 c and 8 d and a lateral member 7. The longitudinal members 8c and 8d can be configured using H-shaped steel. As shown in FIG. 1, the H-shaped steel includes an upper flange 80a, a web 80b, and a lower flange 80c. Both ends of the horizontal member 7 are fixed to the longitudinal member 8c and the longitudinal member 8d by welding or the like. Although there is no limitation in the number of the horizontal members 7, 2 or more are desirable. In FIG. 1, two transverse members 7 are used. The transverse member 7 is not disposed at both ends of the longitudinal members 8c and 8d, and both ends form openings 10b and 11. Hereinafter, the opening (on the right side of the drawing) between the one ends of the longitudinal members 8c and 8d of the lower frame 6 is referred to as a second opening 10b. H-shaped steel can be used as the transverse member 7 in the same manner as the longitudinal members 8c and 8d. The transverse member 7 is not limited to being configured using H-shaped steel.

  The control device 40 for controlling the injection molding machine collects a computer for controlling the operation of the injection molding machine and an amplifier for servo motor control and accommodates them in a housing. The control device 40 is attached to the frame 2, and the upper and lower side ends of the frame 2 that are opposed to each other are fixed to the upper frame 3 and the lower frame 4, respectively. In FIG. 1, the upper and lower portions of the control device 40 are covered only by the upper frame 3 and the lower frame 4. As will be described later, there is an embodiment in which one of the upper frame 3 and the lower frame 4 is provided on either one of the upper and lower side ends of the frame 2 to which the control device 40 is attached.

Next, the form which attaches the control apparatus 40 to the machine base 1 is demonstrated using FIG.
A form in which the upper frame 3 is attached to the H-shaped steel of the upper frame 5 (see FIG. 2 (a))
This attachment form is a form that does not use the lower frame 4. In FIG. 1, the upper frame 3 and the lower frame 4 are attached to the upper and lower ends of the frame 2 to which the control device 40 is attached, but this attachment form uses only the upper frame 3 and does not use the lower frame 4. is there. The upper frame 3 provided with the control device 40 on the lower surface is fixed by a fixing means (not shown) such as a bolt across the lower flange of the H-shaped steel which is the longitudinal members 8a and 8b constituting the upper frame 5. In the case of this attachment form, the longitudinal members 8c and 8d of the lower frame 6 may not be H-shaped steel.

At the time of assembly in a factory, the upper frame 3 provided with the control device 40 on the lower surface is suspended by a crane (not shown) or the like, inserted from the first opening 10a, and moved to the attachment position. The upper frame 3 moved to the attachment position is fixed by fixing means such as a bolt (not shown), but the fixing means can be provided on the H-shaped steel which is the longitudinal members 8a and 8b. With this configuration, the operator can perform the tightening operation from the side of the upper frame 5 constituting the machine base 1 and can easily perform the operation of fixing the upper frame 3.
In FIG. 2A, the horizontal member 7 is provided at the end of the lower frame 6. However, after the upper frame 3 is attached, the horizontal member 7 may be attached to the lower frame 6. Good.

A form in which the lower frame 4 is attached to the H-shaped steel of the lower frame 6 (see FIG. 2B)
This attachment form is a form that does not use the lower frame 4. In FIG. 1, the upper frame 3 and the lower frame 4 are attached to the upper and lower ends of the frame 2 to which the control device 40 is attached. In this embodiment, the lower frame 4 is attached to the lower frame 6 of the machine base 1. It fixes by fixing means (illustration omitted), such as a volt | bolt, straddling the comprised longitudinal members 8c and 8d. In the case of this attachment form, the longitudinal members 8a and 8b of the upper frame 5 may not be H-shaped steel.

At the time of assembly in the factory, the lower frame 4 having the control device 40 on the upper surface is lifted by a crane, a lifter (not shown), etc., inserted from the second opening 10b, and moved to the mounting position. The lower frame 4 moved to the attachment position is fixed by fixing means such as a bolt (not shown), but the fixing means can be provided on the H-shaped steels which are the longitudinal members 8c and 8d. With this configuration, the operator can perform the tightening operation from the side of the lower frame 6 constituting the machine base 1 and can easily perform the operation of fixing the lower frame 4.
In FIG. 2B, the horizontal member 7 is provided at the end of the upper frame 5. However, after the lower frame 4 is attached, the horizontal member 7 is attached to the upper frame 5. That's fine.

A form in which the upper frame 3 and the lower frame 4 are attached to the H-shaped steel of the upper frame 5 and the lower frame 6 (see FIG. 2C)
1, the upper frame 3 and the lower frame 4 are mounted across the H-shaped steel flanges of the longitudinal members 8a, 8b, 8c, and 8d of the upper frame 5 and the lower frame 6, respectively. . When this configuration is adopted, it is not necessary to provide the transverse member 7 in the first opening 10a and the second opening 10b.

  When assembling the injection molding machine at the factory, the upper frame 3 provided with the control device 40 on the lower surface is suspended by a crane (not shown) or the like, inserted from the first opening 10a, and moved to the attachment position. Similarly, the lower frame 4 is inserted from the second opening 10b and moved to the attachment position. The upper frame 3 and the lower frame 4 moved to the attachment position are fixed by fixing means (not shown), but the fixing means can be provided on the H-shaped steels which are the longitudinal members 8a, 8b, 8c and 8d. For this reason, the operator can perform the tightening operation from the side of the upper frame 5 and the lower frame 6 constituting the machine base 1, and can easily perform the operation of fixing the upper frame 3 and the lower frame 4.

  In the mounting form described above, by using both the upper frame 3 and the lower frame 4, the control device 40 can be arranged and mounted in the machine base 1 without adding the lateral member 7 to the machine base 1. Moreover, in these attachment forms, since it is not necessary to provide the horizontal member which attaches the control apparatus 40 to the machine base 1, the control apparatus 40 can be installed in the low position in the machine base 1, and the height of the machine base 1 is made low. It becomes possible to do.

  Moreover, even when repairing and inspecting work, the work of removing the control device 40 from the machine base 1 is the work of removing the upper frame 3 and the lower frame 4 that fix the control device 40 from the side surface of the machine base 1 from the longitudinal members 8a to 8d. The operator is freed from troublesome removal work.

  1 and 2, the upper frame 3 and the lower frame 4 are shown as plate-like members. The upper frame 3 and the lower frame 4 are not limited to plate-like members. For example, an annular member (a metal pipe) or an H-shaped steel disposed across a lattice-like plate-like member or a longitudinal member may be used. it can. By using a plate-like member having a lattice shape or a plurality of holes, an increase in weight can be avoided.

  When an injection molding operation is executed by the injection molding machine, vibrations generated in the resin injection operation process from the injection unit 20 and the mold clamping and mold opening operation processes of the mold clamping unit 30 are transmitted to the machine base 1. . The control device 40 that controls the injection molding machine uses a precision device that is weak against vibration. For this reason, a shock absorber is used so that the vibration generated during the injection molding work does not propagate to the control device 40, and the vibration of the control device 40 is reduced. The arrangement of the shock absorber for reducing vibration will be described with reference to FIGS. 3 and 4. As the shock absorber used, for example, an elastic member such as a vibration-damping rubber member may be used.

  FIG. 3 shows a configuration in which the shock absorber is inserted into the longitudinal gap between the machine base 1 and the frame 2 in order to reduce the vibration of the control device 40, and the longitudinal members 8 c and 8 d of the machine base 1. The form inserted between the flange of the H-shaped steel and the lower frame 4 is shown. FIG. 4 shows a shock absorber between the H-shaped steel web as the longitudinal member and the lower frame 4 and between the lower surface of the upper flange of the H-shaped steel as the longitudinal member and the lower frame 4 in order to reduce the vibration of the control device 40. The form to insert is shown.

In this invention, it is a figure which shows the state before attaching the flame | frame which attached the control apparatus to an injection molding machine. It is a figure which shows embodiment of this invention which attaches the flame | frame which attached the control apparatus to the frame of an injection molding machine. An embodiment of the present invention in which a shock absorber is inserted for vibration reduction of the control device (a configuration in which it is inserted in a longitudinal gap between the machine base and the frame, a configuration in which it is inserted between the H-shaped steel of the machine base and the lower frame) FIG. It is a figure which shows embodiment of this invention which inserts a buffer device for the vibration reduction of a control apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Machine stand 2 The frame which attached the control apparatus 3 Upper frame 4 Lower frame 5 Upper frame 6 Lower frame 7 Horizontal member 8a, 8b, 8c, 8d Longitudinal member 9 Post 10a 1st opening part 10b 2nd opening part 11 3 opening portion 12 longitudinal direction 13 lateral direction 14 first shock absorber 15 second shock absorber 16 third shock absorber 17 fourth shock absorber 20 injection unit 30 mold clamping unit 40 control device 80a upper flange 80b web 80c Lower flange

Claims (8)

In an injection molding machine equipped with an injection unit and a clamping unit arranged in a longitudinal direction on a machine base and equipped with a control device for controlling the injection molding machine on the machine base,
The machine base has a rectangular parallelepiped structure composed of an upper frame, a lower frame, and a column supporting the upper frame,
The upper frame includes a pair of longitudinal members made of H-shaped steel in the longitudinal direction and lateral members in the lateral direction,
At least one end side of both end sides of the pair of longitudinal members of the upper frame is opened,
An injection molding machine comprising a control device on a machine base, wherein an upper frame having the control device attached to the lower surface thereof is attached across a flange portion of H-shaped steel, which is a pair of longitudinal members of the upper frame. In an injection molding machine equipped with an injection unit and a clamping unit arranged in the longitudinal direction of the machine base and mounted on the machine base, and equipped with a control device for controlling the injection molding machine on the machine base,
The machine base has a rectangular parallelepiped structure composed of an upper frame, a lower frame, and a column supporting the upper frame,
The lower frame includes a pair of longitudinal members made of H-shaped steel in the longitudinal direction and a lateral member in the lateral direction,
While opening at least one end side of both ends of the pair of longitudinal members of the lower frame,
An injection molding machine provided with a control device on a machine base, wherein a lower frame having the control device attached to the upper surface thereof is attached across a flange portion of H-shaped steel which is a pair of longitudinal members of the lower frame.   H-shaped steel is used for the longitudinal members of the upper frame and the lower frame of the machine base, and the upper frame and the lower frame with the control device attached to the lower surface and the upper surface, respectively, and a pair of longitudinal members of the upper frame and the lower frame, respectively. An injection molding machine provided with a control device on a machine base according to any one of claims 1 and 2, wherein the machine is mounted across the flange portion of the H-shaped steel.   The upper frame is a plate-like member that covers a part of a region between a pair of H-shaped steels that are longitudinal members of the upper frame of the machine base, and that the upper part of the control device is covered only by the upper frame. An injection molding machine comprising a control device on a machine base according to any one of claims 1 and 3.   The lower frame is a plate-like member that covers a part of a region between a pair of H-shaped steels that are longitudinal members of the lower frame of the machine base, and the lower part of the control device is covered only by the lower frame. An injection molding machine comprising a control device on a machine base according to any one of claims 2 and 3.   6. The injection molding machine according to claim 1, wherein a control device is provided on a machine base in which a shock absorber is inserted between a flange of an H-shaped steel as a longitudinal member and the lower frame or the upper frame.   7. An injection molding machine according to claim 1, wherein a control device is provided on a machine base in which a shock absorber is inserted in a gap existing in a longitudinal direction between the machine base and the frame to which the control device is attached.   8. The injection molding machine according to claim 1, wherein a control device is provided on a machine base in which a shock absorber is inserted between the H-shaped steel web as a longitudinal member and the lower frame or the upper frame.