JP2003320549A - Display unit supporting device for injection molding machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the number of components and a cost, to compact to reduce in size, to improve an appearance (marketability), to facilitate assurance of an installing place and installing space and to facilitate stability at the operating time of a display unit with a touch panel and the assurance of a necessary supporting strength. <P>SOLUTION: The display unit supporting device for an injection molding machine comprises a support 2 having the position for fixing the injection molding machine M, and a hinge mechanism 3 having a constitution in which a pair of frictional hinges 4p, 4q having shafts 6p, 6q rotatably housed in cylinders 5p, 5q via a predetermined friction are disposed in a perpendicularly disposing relation and coupled, and interposed between the support 2 and the display unit D to angle-changeably couple the unit D to the support 2. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device supporting device of an injection molding machine for supporting a display device such as a liquid crystal display device such that its angle can be changed.

[0002]

2. Description of the Related Art Generally, an injection molding machine is provided with an indicator for displaying various data such as molding conditions and operating states. This indicator is used to set an angle that is easy for an operator to see and to rotate the injection device. In order to allow it to escape to a position where it does not interfere, it is supported by an indicator support device so that the angle can be changed.

Conventionally, as this type of display supporting device,
A setting display device (display support device) of an injection molding machine disclosed in Japanese Patent Laid-Open No. 2001-191381 is known. This setting display device is intended to improve the operability by adjusting the height and horizontal angle of the setting display, and it can be adjusted vertically along the rail on the side of the operation box fixed to the fixed board. A linear guide mechanism having a slider that moves to is attached to the slider, and a holding member provided with a swivel support portion that supports the setting display so as to swivel in a horizontal plane is fixed to the slider. Further, a lock mechanism for stopping the setting indicator at a plurality of turning angle positions is provided on the turning support portion for the holding member of the setting indicator. Thereby, the operator grasps the handle provided on the setting display box to move the setting display up and down or horizontally to adjust the setting display so that the height and angle can be easily seen by the operator, or , The setting display can be moved to a position that does not interfere with maintenance and inspection.

[0004]

However, such a conventional display supporting device (setting display device) has the following problems.

First, the overall structure becomes complicated, the number of parts increases, and the parts increase in size, resulting in an increase in cost and deterioration in appearance (commercial properties). In particular, since the display device is raised and lowered with respect to the vertical direction, it is necessary to secure a vertically long mounting side surface, which limits the installation location, and below the display device, other devices such as an operation panel and Unnecessary dead space is created because parts cannot be placed.

Secondly, since it has a structure in which one end of the display device is supported in a cantilever manner, there is no problem as long as it is used only for display, but when a touch panel is attached, it is a considerable machine to withstand the pressing force of the touch operation. It is not easy to secure the stability during operation while it is necessary to secure the desired strength (supporting strength).

The present invention has solved the problems existing in such conventional techniques, and by simplifying the configuration, the number of parts and the cost are reduced, and further, the size and the size are reduced and the appearance (commerciality) is improved. In addition, it is possible to easily secure the installation place and the installation space, and also to provide the display supporting device of the injection molding machine that can easily secure the stability during operation and the necessary supporting strength for the display with the touch panel. And

[0008]

SUMMARY OF THE INVENTION In the present invention, when constructing a display device supporting device 1 of an injection molding machine M that supports a display device D so that its angle can be changed, the display device supporting device 1 is positioned with respect to the injection molding machine M. And the support portion 2 fixed to the shaft portions 6p and 6q that are rotatably housed in the tubular portions 5p and 5q through predetermined friction.
A pair of friction hinges 4p and 4q having a structure in which the friction hinges 4p and 4q are arranged in an orthogonal positional relationship are connected to each other. Is provided with a hinge mechanism section 3 for coupling the angle changeable.

In this case, according to the preferred embodiment, the hinge mechanism portion 3 is coupled to the back surface Dr of the display D at a substantially central position Xc. In addition, the hinge mechanism section 3 includes the connecting piece 11
And one friction hinge portion (first friction hinge portion) 4p
One of the shaft portion 6p and the tubular portion 5p in the above is coupled to the first coupling surface 11a of the coupling piece 11 and the other is attached to the support portion 2, and the other friction hinge portion (second friction hinge portion)
One of the shaft portion 6q and the tubular portion 5q of 4q is connected to the connecting piece 11
Second coupling surface 11c orthogonal to the first coupling surface 11a in
, And the other can be fixed to the display D. Further, the hinge mechanism portion 3 is attached to the support portion 2 so as to face the first coupling surface 11a.
a first support shaft portion 12p for rotatably supporting b, and a display device D
The second support shaft portion 12q that rotatably supports the second support surface 11d that faces the second coupling surface 11c can be provided by being attached to the second support surface 11d. Note that the hinge mechanism section 3 normally positions the display device D inside the turning path R of the ejection device Mi, and changes the angle that positions the display device D outside the turning path R at least when the ejection device Mi turns. Have a range.

As a result, the display D is supported by the support portion 2 via the hinge mechanism portion 3 in which the pair of friction hinge portions 4p and 4q are arranged so as to be orthogonal to each other and are connected to each other.
The structure is simplified and compacted by the small number of parts and small parts. In this case, since the angle of the indicator D can be changed by the friction hinge portions 4p and 4q having a predetermined friction, the angle can be freely changed at the time of change, and after the change, other operations such as locking are unnecessary. Becomes In particular, by connecting the hinge mechanism portion 3 to the substantially central position Xc on the back surface Dr of the display D, the center of rotation is substantially the center of the display D, and therefore when the display D (display surface) is pressed. The moment applied to the hinge mechanism section 3 is minimized, and the stability during operation and the necessary support strength for the display D with a touch panel are easily ensured.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, preferred embodiments according to the present invention will be described in detail with reference to the drawings.

First, FIG. 5 and FIG. 6 show a schematic structure of an injection molding machine M including the display supporting device 1 according to the present embodiment.
Will be described with reference to.

As shown in FIG. 5, the injection molding machine M includes a molding machine bed 21, an injection device Mi is arranged on one side of the upper surface of the molding machine bed 21, and a mold clamping device Mc is arranged on the other side of the upper surface. To arrange. As shown in FIG. 6, the mold clamping device Mc includes a fixed platen 22 fixed to the upper surface of the molding machine bed 21,
Four tie bars 23 are installed between the fixed board 22 and a pressure receiving board (not shown), and a movable board 24 slidably mounted on the tie bars 23. Then, the fixed die Cc is attached to the fixed board 22 and the movable die Cm is attached to the movable board 24. The fixed mold Cc and the movable mold Cm are the mold C.
Make up. As a result, the movable platen 24 can be moved back and forth by a drive mechanism (not shown) to perform mold closing, mold clamping, and mold opening on the mold C.

On the other hand, a base portion 25 is placed on the upper surface of the molding machine bed 21 on which the injection device Mi is located, and the base portion 25 and the molding machine bed 21 are connected by a support shaft portion 26. In this case, as shown in FIG. 6, the support shaft portion 26 is provided by being offset to a position on the right of the base portion 25, which is substantially at the center in the screw axis direction (front-back direction). As a result, the base portion 25 becomes rotatable about the support shaft portion 26 as a fulcrum. Further, the slide plate 27 is slidably supported in the forward / backward direction by the base portion 25.
The injection device Mi is disposed on the upper surface of the. The injection device Mi is
As shown in FIG. 5, a pair of front support plate 28 and rear support plate 29 facing each other are provided, and the heating cylinder 30 is attached to the front surface of the front support plate 28. The heating cylinder 30 has an injection nozzle 31 at the tip,
A hopper 32 is provided at the rear part and a screw 33 (FIG. 6) is incorporated inside. Further, the front support plate 28 and the rear support plate 29 form a drive mechanism unit 34 including a screw rotation drive mechanism using a servo motor for rotating the screw 33 and a screw advance / retreat drive mechanism using a servo motor for moving the screw 33 forward and backward. To support.

On the other hand, on the upper surface of the molding machine bed 21 located between the injection device Mi and the mold clamping device Mc, an injection device moving mechanism 35 for advancing, retracting or turning the injection device Mi is arranged. The injection device moving mechanism 35 includes a support base 36 rotatably attached to the upper surface of the molding machine bed 21 located near the fixed platen 22, and the support base 36 includes a ball screw mechanism 37 and the ball screw mechanism. A drive unit 38 for driving the unit 37 is attached and configured. In this case, the drive unit 38 includes a drive motor and a rotation transmission mechanism (including a speed reduction mechanism).

Further, a slide-type safety door 39 is arranged at a front position (side position) of the mold C, and an operation panel 40 is arranged next to the safety door 39. Control panel 4
Reference numeral 0 denotes a rectangular box, and the display D is mounted on the upper surface of the operation panel 40 via the display supporting device 1 according to the present embodiment.
Support.

Next, the structure of the display supporting device 1 according to this embodiment will be described with reference to FIGS.

Reference numeral 2 denotes a support portion having a fixed thickness and formed in a strip shape. The lower end portion of the support portion 2 is attached to the upper end of the operation panel 40. As a result, the support portion 2 vertically stands up from substantially the center of the upper surface of the operation panel 40 and is fixed in position with respect to the injection molding machine M. And
On one surface portion of the upper portion of the support portion 2, a substantially central position X on the rear surface Dr of the display device D via the hinge mechanism portion 3.
join c.

The hinge mechanism 3 includes a pair of friction hinges 4p and 4q, a pair of support shafts 12p and 12q, and a connecting piece 11. One friction hinge portion (first friction hinge portion) 4p is, as shown in FIG. 4, a cylindrical portion 5p made of synthetic resin.
The shaft portion 6p made of metal is rotatably accommodated in the shaft portion 6p via a predetermined friction, and the shaft portion 6p is rotatably supported by the cylinder portion 5p. It is set so that a constant resin frictional force is generated between them. Therefore,
It will not rotate unless a torque greater than the set value is applied. Further, a plate-shaped mounting portion 5pc protruding in the radial direction is integrally formed on the outer peripheral surface of the cylindrical portion 5p, and a part of the shaft portion 6p protruding from the cylindrical portion 5p serves as a coupling portion 6pc having a non-circular cross section. Form. Although the coupling portion 6pc of the embodiment is formed to have a rectangular cross section, it may be D-cut or the like. The other friction hinge portion (second friction hinge portion) 4q is the same as the first friction hinge portion 4p. In the second friction hinge portion 4q, 5qc indicates a mounting portion and 6qc indicates a coupling portion.

Further, one support shaft portion (first support shaft portion) 12p
Is a rectangular parallelepiped mounting portion 12pc, as shown in FIG.
A round bar-shaped shaft portion 12ps protruding at a right angle from one surface of the mounting portion 12pc is integrally formed. In this case, shaft part 12ps
It is desirable that the material and the diameter of the shaft are the same as those of the shaft portion 6p. The other support shaft portion (second support shaft portion) 12q is the same as the first support shaft portion 12p. In the second support shaft portion 12q, 12qc indicates a mounting portion and 12qs indicates a shaft portion.

Further, as shown in FIG. 4, the connecting piece 11 is formed in a rectangular parallelepiped shape, and has a first connecting surface 11a, a second connecting surface 11c orthogonal to the first connecting surface 11a, and a first connecting surface. A first support surface 11b facing 11a, and a second support surface 11d orthogonal to the first support surface 11b, and a coupling in which the shaft portion 6p (coupling portion 6pc) is fitted to the first coupling surface 11a. The recessed portion 15a, the coupling recessed portion 15c into which the shaft portion 6q (coupling portion 6qc) fits into the second coupling surface 11c, and the engagement recessed portion into which the shaft portion 12ps is rotatably inserted into the first support surface 11b. On the second support surface 11d, engaging recesses 15d into which the shaft portion 12qs is rotatably inserted are formed.

Next, a method of assembling the display device supporting apparatus 1 according to this embodiment will be described with reference to FIGS.

First, the first connecting surface 11 of the connecting piece 11
While inserting the fitting portion 6pc of the shaft portion 6p of the first friction hinge portion 4p into the fitting recessed portion 15a of a, the fitting recessed portion 1 of the first support surface 11b of the connecting piece 11 is engaged.
The shaft portion 12ps of the first support shaft portion 12p is rotatably inserted into the 5b, and in this state, the mounting portion 5 of the first friction hinge portion 4p is attached.
The pc and the attachment portion 12pc of the first support shaft portion 12p are fixed to one surface portion of the upper portion of the support portion 2 by using fixing screws N ... At this time, the mounting pedestal 16p is interposed between the mounting portion 5pc and the support portion 2 to dispose the first friction hinge portion 4p.
The shaft portion 6p and the shaft portion 12ps of the first support shaft portion 12p are set so as to be on the same straight line parallel to the support portion 2.

Next, the second connecting surface 1 of the connecting piece 11
The coupling recess 15c of the first friction member 1c is inserted and fitted with the coupling portion 6qc of the shaft 6q of the second friction hinge portion 4q, and the engagement recess 1 of the second support surface 11d of the coupling piece 11 is inserted.
The shaft portion 12qs of the second support shaft portion 12q is rotatably inserted into 5d. Then, in this state, as shown in FIG. 3, the attachment portion 5qc of the second friction hinge portion 4q and the second support shaft portion 12q.
The mounting parts 12qc of the
The display device D is attached at a substantially central position Xc on the back surface Dr. At this time, the mounting pedestal 16q is interposed between the mounting portion 5qc and the back surface Dr, and the shaft portion 6q of the second friction hinge portion 4q and the shaft portion 12qs of the second support shaft portion 12q are respectively mounted on the back surface Dr.
Set to be on the same straight line parallel to. In this case, the support portion 2 may be provided with a notch or a hole through which a tool such as a driver passes.

As a result, the display device supporting device 1 including the hinge mechanism portion 3 is assembled, and at the same time, the display device D is supported on the upper portion of the support portion 2 via the hinge mechanism portion 3, and the display device D is The angle can be changed with respect to the support portion 2. In this case, the display device D to be used may be of any type, but a color liquid crystal display device having a narrow viewing angle is particularly suitable. A touch panel is attached to the display device D. On the other hand, in order to protect the hinge mechanism portion 3 and ensure its appearance, the cover member 17 is attached to the upper end of the support portion 2 and the cover member 18 is attached to the back surface Dr of the display D to cover the hinge mechanism portion 3. Is desirable.

Next, the function of the display supporting device 1 according to this embodiment will be described with reference to the drawings.

First, since the display D is supported by the hinge mechanism 3 formed by connecting the first friction hinge 4p arranged vertically and the second friction hinge 4q arranged horizontally, the display D is displayed. The device D includes the first friction hinge portion 4p and the first support shaft portion 12 as shown by solid lines and imaginary lines in FIGS.
The angle can be changed in the left-right direction using p as a fulcrum, and the angle can be changed in the vertical direction using the second friction hinge portion 4q and the second support shaft portion 12q as a fulcrum.

In this case, when changing, the angle can be freely changed as it is, and after the change, other operations such as locking are unnecessary. In the embodiment, the display unit D has a length of 200 mm.
A color liquid crystal display of [mm] and 300 [mm] in width was used, and the frictional hinges 4p and 4q had a torque for rotation of 1.4 [Nm]. . Therefore, if a force of about 10 [N] is applied to the display device D, the angle can be changed. At this time, the display device D is allowed to rotate at least leftward (clockwise in plan view) by about 60 ° with respect to the home position.
As a result, during normal operation, the display device D can be positioned within the turning path R of the injection device Mi, and when the injection device Mi turns, the display device D is turned counterclockwise to rotate the display device D in the turning path. It can be located outside R. Further, the display D can be rotated by 20 [°] to the right and about 30 [°] in the vertical direction.

Therefore, the operator can freely set an angle that is easy to see with respect to the display device D, and as shown in FIG. 6, normally, the display device D is positioned within the turning path R of the injection device Mi, and At the time of turning of the injection device Mi, the display device D can be positioned outside the turning path R by turning the display device D to the left, so that the injection device Mi is not disturbed by the display device D. Turning path R
Can be moved along inside.

Geometrically, a pair of friction hinge portions 4p, 4 are provided so as to surround the four faces of the rectangular parallelepiped connecting piece 11.
Since q and the pair of support shafts 12p and 12q are arranged, the configuration is simplified and made compact by a small number of parts, small parts, and a rational layout, which reduces costs and improves appearance (commercial properties). In addition to being designed, the installation location and installation space can be easily secured. In addition, the hinge mechanism section 3 is attached to the back surface Dr of the display D at a substantially central position X.
Since the display D is coupled to c, the center of rotation of the display D is substantially in the center, and the stability during operation and the necessary supporting strength for the display D with a touch panel are easily ensured. That is, normally
Since the pressing force at the time of touch operation is 0.1 to 0.8 [N], assuming that the right and left end portions of the display device D are pressed with a force of 0.8 [N], it is 0. 8 [N] x (0.3 / 2)
[M] = 0.12 [N · m], which is a value sufficiently smaller than the torque of 1.4 [N · m] described above. Therefore, it is possible to easily secure the stability during operation and the necessary support strength for the display D with a touch panel.

The embodiment has been described in detail above.
The present invention is not limited to such an embodiment,
The detailed configuration, method, numerical values, etc. can be arbitrarily changed, added, or deleted without departing from the scope of the present invention. For example, the embodiment exemplifies the case where the hinge mechanism section 3 is coupled to the substantially central position Xc on the back surface Dr of the display D, but in the case of a display without a touch panel,
It is not always necessary to connect to the central position Xc. When the shaft portion 6p of the first friction hinge portion 4p is coupled to the first coupling surface 11a of the coupling piece 11 and the shaft portion 6q of the second friction hinge portion 4q is coupled to the second coupling surface 11c of the coupling piece 11. However, the tubular portion 5p of the first friction hinge portion 4p is coupled to the first coupling surface 11a of the coupling piece 11, and the tubular portion 5q of the second friction hinge portion 4q is coupled to the second coupling surface 11c of the coupling piece 11. May be combined. Furthermore, the first support shaft portion 12
p and the second support shaft portion 12q, the shaft portion 12ps and the shaft portion 12
Although the case where qs is provided is illustrated, the shaft portion 12ps and the shaft portion 12qs are provided on the connecting piece 11 side, and the first support shaft portion 12p and the second support shaft portion 12q include the shaft portion 12ps and the shaft portion 12qs.
You may provide the support hole which is inserted.

[0032]

As described above, the display supporting device according to the present invention includes a supporting portion whose position is fixed with respect to the injection molding machine,
It has a structure in which a pair of friction hinge portions having a shaft portion rotatably accommodated in a tubular portion through a predetermined friction are arranged and connected in an orthogonal positional relationship, and are interposed between a support portion and a display. Thus, since the hinge mechanism portion that couples the display device to the support portion so that the angle can be changed is provided, the following remarkable effects are achieved.

(1) By simplifying the configuration, the number of parts and cost can be reduced, the size and the size can be reduced, and the appearance (commerciality) can be improved, and the installation place and the installation space can be easily secured.

(2) According to a preferred embodiment, if the hinge mechanism section is coupled to a substantially central position on the back surface of the display, the display with a touch panel will have stability during operation and necessary support. The strength can be easily secured.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional side view configuration diagram of a display supporting device according to a preferred embodiment of the present invention,

FIG. 2 is a partial cross-sectional plan view of the display device supporting device,

FIG. 3 is a rear view of the display device supporting device without a supporting portion,

FIG. 4 is an external perspective view of components used for the display supporting device;

FIG. 5 is a side view in which a part of an injection molding machine including the display device supporting device is omitted.

FIG. 6 is a plan view in which a part of an injection molding machine including the display device supporting device is omitted.

[Explanation of symbols]

1 Display support device 2 Support 3 Hinge mechanism 4p friction hinge part (first friction hinge part) 4q friction hinge part (second friction hinge part) 5p tube 5q tube 6p shaft 6q shaft 11 connecting pieces 11a First coupling surface 11b First supporting surface 11c Second coupling surface 11d Second support surface 12p First support shaft 12q Second support shaft M injection molding machine Mi injection device D display Back side of Dr display Xc Display's back surface, approximately center position R turning path

Claims (5)

[Claims] 1. An indicator support device for an injection molding machine, which supports a display device so that its angle can be changed, and a support portion whose position is fixed with respect to the injection molding machine and a tubular portion which is rotated through predetermined friction. A pair of friction hinges having a shaft that can be accommodated,
A hinge mechanism section for connecting the display unit to the support unit such that the display unit can be changed in angle by interposing between the support unit and the display unit. An indicator support device for an injection molding machine, which is characterized by: 2. The display device supporting apparatus for an injection molding machine according to claim 1, wherein the hinge mechanism portion is coupled to a substantially central position on the back surface of the display device. 3. The hinge mechanism portion has a connecting piece, and one of the shaft portion and the tubular portion of one friction hinge portion (first friction hinge portion) is connected to a first connecting surface of the connecting piece. And a second coupling surface of the other friction hinge portion (second friction hinge portion), the one of the shaft portion and the tubular portion being orthogonal to the first coupling surface of the coupling piece while the other is attached to the support portion. 3. The indicator support device for an injection molding machine according to claim 1, wherein the indicator support device is attached to the indicator and the other is attached to the indicator. 4. The hinge mechanism section is attached to the support section, and is attached to the display unit, and a first support shaft section that rotatably supports a first support surface facing the first coupling surface. The display support device for an injection molding machine according to claim 3, further comprising a second support shaft portion that rotatably supports the second support surface facing the second coupling surface. 5. The hinge mechanism section normally positions the indicator in the turning path of the injection device, and changes the angle to position the display outside the turning path at least when the injection device turns. The indicator support device for an injection molding machine according to claim 1, wherein the indicator support device has a range.