JPH0133621Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a press device for glass molding.

(Prior Art) Conventionally, this type of device has a sliding member (hereinafter simply referred to as a slide) within a guide box provided in the main body of a moving member that moves along a guide bar.
is accommodated, and the moving member is moved along the guide bar while the slide is brought into sliding contact with the guide bar. Therefore, after long-term use, the slide wears out, and the sliding contact pressure against the guide bar becomes weak, making it impossible to slide smoothly. When the slide wears out in this way, it is generally necessary to readjust the position of the slide in the guide box so that it is pushed out toward the guide bar, but conventionally, this position adjustment has had to be done manually. Therefore, a lot of working time is wasted, and it is extremely difficult to make adjustments accurately.

To specifically explain these matters using drawings, Fig. 4 shows a conventional guide part, and numeral 1 indicates a guide part (not shown) provided in a part of the main body of a moving member such as a crosshead in a press machine for glass molding. It shows a box-shaped guide box. Inside this guide box 1 is a slide 3 whose position can be adjusted slidably toward the opening.
The accommodation has been fixed. The side surface of the slide 3 is formed into a V-shaped groove, and the slide 3 is adapted to fit into and slide into contact with the V-shaped protrusion of the guide bar 2. while using it,
When the sliding surfaces of the slide 3 and the guide bar 2 wear out, the slide 3 provided in the guide box 1 is manually adjusted to an appropriate clearance by an operator using the push force adjustment screw 4 via the push spacer 6. It is adjusted and tightened with a rotation stopper nut 5, and is in sliding contact with the guide bar 2. When the slide 3 and the guide bar 2 wear out, they are pushed out in the direction of the arrow in the figure and adjusted as described above. A gap 7 indicated by a chain line indicates wear of the slide 3.

According to the conventional guide mechanism with such a structure, when the slide and guide wear out, the machine must be stopped and the pushing force adjustment screw must be manually adjusted by the operator, which is not only complicated but also time consuming. The target loss is large. Furthermore, it is difficult to tighten or loosen the pushing force adjusting screw for adjustment, and if adjustment is not done, the crosshead will play, making it difficult to perform press forming properly.

(Problems to be Solved by the Invention) The present invention attempts to solve the above-mentioned problems that conventional devices of this type have, such as the complexity of guide adjustment and poor operability.

(Means for Solving the Problems) Therefore, the present invention provides a device in which a slide housed in a guide box and a guide bar are guided while being in sliding contact with each other, and the slide is hydraulically moved toward the guide bar. The structure is such that the movement can be adjusted, and this is used as a means to solve the problem.

(Function) By sending hydraulic pressure to a part of the slide via an appropriate hydraulic control circuit, the slide is made to slide within the guide box, and the clearance between the slide and the guide bar is automatically adjusted.

(Example) Hereinafter, an example of the present invention will be described based on the drawings. 1 and 2 show a typical embodiment of the invention, and FIG. 3 shows another embodiment.

In FIG. 1, 21 is a movable member main body such as a crosshead in a glass molding press machine;
23 is a slide, 24 is a guide bar that guides the moving member main body 21, and these parts are the fourth
This is the same as the conventional one shown in the figure.

The difference between this embodiment and the conventional one is that, as shown in FIG. It is sealed and tightly fitted. Furthermore, an oil chamber 27 in which guide pressure can be adjusted is formed between the bottom surface of the concave portion of the slide 23 and the bottom surface of the piston cylinder 25, and a hydraulic passage communicates with the oil chamber 27 via an appropriate hydraulic control circuit outside the machine. has been done. Therefore, when the pressure oil 28 is fed into the slide, the slide moves to the position indicated by the broken line in the figure.

According to this embodiment having the above-described components, during operation, pressure oil 28 is always applied to the oil chamber 27, and each slide 23 is moved between the guide boxes 22 and 22.
The guide bar 24 is pushed out toward the opening side and slides into contact with each guide bar 24 with the same equal pressure, thereby performing a sliding operation. When the guide bar 24 and the slide 23 wear out, the slide 23 is moved to the guide bar 24 using pressure oil 28.
direction, automatically follows the guide bar 24, and controls hydraulic pressure from the outside.
Guide pressure can also be adjusted. Also, the gap 7 indicates the wear of the slide 23 during wear.

FIG. 3 shows another embodiment. In this embodiment, the slide 23 and the guide bar 2 are
The sliding contact surface of No. 4 is formed into a flat surface, and the other parts are the same as those of the above embodiment. In this case, there is an advantage that although the machining between the members is easy, the guiding pressure can be adjusted by hydraulic pressure, so that the guiding can be performed reliably.

Note that the present invention is not limited to the above-mentioned embodiments, and various modifications can be made without departing from the gist of the present invention.

(Effects of the invention) As explained in detail above, according to the invention,
When the slides and guides wear out, there is no need to stop the machine and manually adjust the pushing force with the difficult-to-adjust screws, resulting in a significant cost reduction. In addition, when the piston cylinder of the hydraulic mechanism is installed inside the slide, it can automatically follow up when it wears out, and it can also be freely adjusted to various guide pressures from the outside, saving manpower, time, and improving operability. Furthermore, the guide section can be automated.

[Brief explanation of the drawing]

FIG. 1 is a side view of a guide device showing an embodiment of the present invention, FIG. 2 is a cross-sectional view taken from FIG. FIG. Explanation of the main parts of the figure, 21...Moving member main body,
22... Guide box, 23... Slide, 2
4... Guide bar, 25... Piston cylinder,
27...Oil room.

Claims (1)

[Scope of utility model registration request] A device for glass molding in which a sliding member housed in a guide box and a guide bar are guided while being in sliding contact with each other, characterized in that the sliding member can be adjusted to move in the direction of the guide bar by hydraulic pressure. Press equipment.