Injection molding machine

Abstract

An injection molding machine includes a resin scattering preventing cover configured to prevent resin scattering from injection nozzle fixed to an end of an injection unit, a lighting unit configured to molding contact portion where the injection nozzle and a mold contact, a fixing unit configured to fix the lighting unit, and an opening/closing portion where the resin scattering prevention cover is configured to open and close; wherein the fixing unit is connected interlocked with opening and closing of the opening/closing portion.

Claims

1. An injection molding machine, comprising: a resin scattering preventing cover configured to prevent resin scattering from an injection nozzle fixed to an end of an injection unit; a lighting unit configured to lighten molding contact portion where the injection nozzle and a mold contact; a fixing unit configured to fix the lighting unit; an opening/closing portion where the resin scattering prevention cover is configured to open and close; a guide unit configured to restrict a moving region of the lighting unit to an area other than the opening/closing portion of the resin scattering prevention cover; and a guided unit with which the lighting unit or the fixing unit guides the guide unit, wherein the fixing unit is connected interlocked with opening and closing of the opening/closing portion, and the guided unit is configured to be guided by the guide unit when the opening/closing portion is open or closed such that the fixing unit and the lighting unit are moved.

2. An injection molding machine according to claim 1, wherein the lighting unit is provided on outside part of the resin scattering preventing cover.

3. An injection molding machine according to claim 1, wherein the fixing unit and the opening/closing portion is disconnectably connected to each other.

4. An injection molding machine according to claim 1, comprising: a lighting and extinction command unit for commanding lighting and extinction of the lighting unit, configured to command lighting and extinction to the lighting unit inter-connectedly with back and forward motion of the injection unit.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The above-described object, the other object, and the feature of the invention will be proved from the description of embodiments below with reference to the accompanying drawings. In these drawings:

(2) FIG. 1 is a diagram showing an implementation example of a molding machine.

(3) FIG. 2 is a diagram showing lighting and a resin scattering preventing cover (Details A) in the prior art.

(4) FIG. 3 is arrangement relation diagram around a nozzle.

(5) FIG. 4 is a diagram showing a resin scattering preventing cover and a lighting.

(6) FIG. 5 is a diagram showing interlocking of opening/closing the resin scattering preventing cover and a lighting.

(7) FIG. 6 is a diagram showing removal of the lighting.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

(8) As shown in FIGS. 3, 4, and 5, resin scattering prevention covers 2A, 2B are attached to an injection molding machine. A lighting 1 fixed to a lighting fixing part is attached outside of the resin scattering prevention cover 2B, installed such that the resin scattering prevention cover 2B is opened and closed using a hinge 3A. Light of the lighting 1 is configured to lighten the mold touching portion and the interior portion of the resin scattering preventing cover 2B through a window having a transparent plate, installed in the resin scattering preventing cover 2B. When the lighting is attached in the direction the resin scattering preventing cover 2B opens, there is a case where the lighting prevent opening and closing of the resin scattering preventing cover 2B. However, the lighting 1 is attached movably to the resin scattering preventing cover 2B by connecting the lighting fixing part and the resin scattering preventing cover 2B using the hinge 3B, such that the lighting 1 is interlocked with the opening and closing of the resin scattering preventing cover 2B without preventing the opening and closing of the resin scattering preventing cover 2B. In addition to that, the lighting 1 is attached outside the resin scattering preventing cover, such that the lighting 1 is protected from the influence of the heat of the heating tube and the scattered resin ejected from the top end of the nozzle.

(9) A roller is attached to the lighting fixing part and the roller is installed movably along a guide set in the resin scattering preventing cover, such that the lighting 1 moves along a track the operator intends, when the resin scattering preventing cover 2B is open and closed, as shown in FIGS. 4 and 5. In addition to that, movement of the lighting 1 is restrained by the guide, such that the lighting moves unintendedly while the resin scattering preventing cover 2B is closed and fixed.

(10) Since the detachable hinge 3B is attached to the lighting 1 as shown in FIG. 6, the lighting attached to the resin scattering preventing cover 2B is easily removed. The lighting can be removed when the lighting prevents confirmation work of the mold touching unit and the interior portion of the resin scattering preventing cover by the operator, and the removed lighting 1 can lighten any part.

(11) The lighting is configured to be turned on and off interlocking with the forward and backward motion of the injection unit, such that the touching portion of the top end of the nozzle to the mold is automatically lightened when touched, and it is prevented for the operator to turn off of the lighting.