JPS5856040B2 - Hanging gripping device for aluminum materials - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is an apparatus for suspending and gripping aluminum materials, in particular, for suspending and gripping aluminum materials at a desired pitch from an electrolytic frame etc. during electrolytic treatment of aluminum materials, and also for improving power supply characteristics and transportation of aluminum materials. This invention relates to a hanging gripping device made of aluminum material with excellent damping characteristics that can dampen vibrations during a very short period of time.

In this specification, wedge engagement refers to a wedge force generated between the electrolytic frame and the gripping member in the engaged state due to the downward load of the aluminum material when the aluminum material is suspended; This refers to the state in which the gripping member is fixed to the electrolytic frame by the wedge force.

In general, aluminum materials such as sash materials, other mold materials, and plate materials undergo a desired surface treatment after being molded before being supplied to the market.

This surface treatment is carried out continuously, for example, by sequentially moving the aluminum material through treatment baths for degreasing, washing, etching, anodizing, etc. after molding into a mold material or the like.

However, since the aluminum material is moved while being suspended from an electrolytic frame or the like using a gripping means, the quality of the oxide film on the surface may be affected depending on the manner in which the aluminum material is suspended during each treatment, especially during anodizing treatment. , it is desired to improve the gripping means or gripping device.

For this reason, various hanging gripping devices have been proposed and implemented in the past.

That is, in a general hanging gripping device, the gripping means is fixed to an electrolytic frame or the like.

It is a so-called fixed type device, and usually, as shown in Fig. 1,
A gripping means is fixed to the electrolytic frame 1 at a predetermined pitch, and this gripping means includes a hanging jig 2 and a gripping jig 3 connected thereto.
Therefore, the aluminum material 4 is held at the lower part of the gripping jig 3.

However, in the fixed type device, in addition to the fact that the aluminum material 4 is attached to the holding means provided from the hanging jig 2 and the holding jig 3 to the electrolytic frame 1, the aluminum material 4 is The hanging jig 2 and the center of gravity are not suspended on a common vertical line.

Therefore, during movement by a crane or the like, the hanging jig 2 and the gripping means removed from the gripping jig 3 and the aluminum material 4 vibrate together, and the amplitude is extremely large.

Therefore, damping cannot be expected in a short time, and the vibration of any aluminum material also resonates with the adjacent aluminum material, and the vibration extends to the entire part, so the gripping part of the aluminum material is the weakest in terms of strength. is easily damaged.

In addition, it is necessary to determine the pitch interval when installing aluminum materials depending on the shape and size of the aluminum material to improve the finish quality during surface treatment. When aluminum materials are suspended at intervals, the pitch does not allow for hanging too many aluminum materials, resulting in a decrease in so-called stringing efficiency.

In addition, fixed devices are equipped with unnecessary gripping means, so when electrolyzing aluminum materials, the unused gripping means are left in place, so these gripping means tend to get dirty, and if they are not used. The gripping means is undesirable because it becomes a hindrance when attaching the aluminum material.

For this reason, recently, removable devices have been proposed and implemented in place of fixed devices.

Unlike fixed devices, this device allows the pitch interval to be freely set according to the shape of the aluminum material, etc., but there are problems.

First, FIGS. 2 and 3 show an example of a conventional removable device. In this device as well, the aluminum material 4 is connected to a gripping jig 3 and a hanging jig 2 connected to the upper end of the gripping jig 3. However, the locking part 2a of the hanging device 2 is curved in an arc shape and directly engaged with the power supply bar 13, and in this case, the locking part 2a of the hanging device 2 is The stop portion 2a is merely placed on the power supply bar 1a having a circular cross section.

Therefore, during movement, the locking portion 2a moves on the power supply bar 1a, the position of the aluminum material shifts, and the pitch interval tends to change.

Further, the hanging jig 2 contacts the power supply bar 1a depending on the shape of the day, and such a contact state is likely to cause poor contact, causing problems in power supply and damping performance to the aluminum material 4. be.

Similarly, FIGS. 4 and 5 also show an example of a conventional detachable device.

In the device shown in FIG. 4, the tip end 2a of the hanging jig 2, which holds a part of the gripping means, is formed into an annular shape with a part cut out, and the power supply bar 1a is shaped like a beam. It is composed of

However, in this device, the tip 2a is simply in contact with the power supply bar 1a, and since there is hardly any external mechanical force applied between them, there is a problem in the contact state between the two. Therefore, the power supply performance is poor, and the power supply performance is compensated for by the lead wire 15.

Furthermore, during movement, the aluminum material moves around the center of deflection O, and its damping properties are extremely poor.

Further, the device shown in FIG.
This device is formed by bending it into a polygonal shape, and in this case as well, the damping property is poor like the device shown in Fig. This is extremely undesirable because it shifts the position.

The purpose of the present invention is to solve the above-mentioned drawbacks, and in particular, it can be detachably attached to an electrolytic frame, etc., it can reliably supply power, and even if the aluminum material vibrates during movement to each surface treatment process, it can be damped. We propose a hanging gripping device made of aluminum material with excellent durability.

That is, in the present invention, a V-shaped groove is provided on the lower side of a carrier beam, etc., and the upper end of a gripping member that grips an aluminum material at its lower end is removably seated in line contact with the V-shaped groove. It is characterized by

Embodiments of the present invention will be described below with reference to the drawings.

6 is a front view of a hanging gripping device according to one embodiment of the present invention, and FIG. 7 is a sectional view taken along line A-A in FIG. 6.

First, in FIGS. 6 and 7, the electrolytic frame 13 is fixed on both sides of the carrier beam 10 under the carrier beam 10,
The electrolytic frame 13 is extended from below the carrier beam 10,
The lower ends of each electrolytic frame 13 are bent inward, and V-shaped grooves 11 are formed at these bent portions 13a.

In addition, the electrolytic frame 13 is usually made of copper or a copper alloy in view of its ability to supply electricity, but it may be made of any material as long as it is electrically conductive.

Next, as described above, a V-shaped groove 11 is formed on the lower side of the carrier beam 10, and the gripping member 12 is configured to wedgely engage within this V-shaped groove 11.

In this case, in the present invention, the gripping member 1 is attached to the V-shaped groove 11.
2 are wedge-engaged, and the aluminum material is held by this wedge effect. Therefore, the cross-sectional shape of the gripping rod 12a at the upper end of the gripping member 12 is designed to wedgely engage the V-shaped groove 11, as shown in FIGS. As shown in FIG. 8, it has a cylindrical or cylindrical shape.

In FIGS. 6 and 7, the gripping rod 12a of the gripping member 12 is configured in a cylindrical shape, and maintains a line contact state with the V-shaped groove 11 by the gripping rod 12a.

The diameter of the gripping rod 12a is configured to be larger than the groove width of the groove 11a formed in the ■-shaped groove 11, and the thickness of the gripping member 12 is generally configured to be smaller than this groove width.

With this configuration, the cylindrical head 12a of the gripping member 12 can be aligned with the V-shaped groove 11 from both grooves 11a, and the gripping member 12 can be attached very easily.

Although the gripping member 12 grips the aluminum material 4 at its lower end, it is sufficient if the gripping portion 12b is configured to be able to grip the upper end of the aluminum material 4 as in the conventional method.

As mentioned above, the gripping rod 12a of the gripping portion 12 is connected to the V-shaped groove 11.
In addition to wedge engagement, if the center of gravity of the gripping rod 12a and the center of gravity of the aluminum material 4 are aligned and positioned on the same vertical line, the gripping member 12 can be locked at any position. , the gripping members 12 can be reliably locked in that position, and the pitch interval between the gripping members 12 can also be freely adjusted.

That is, the upper end of the gripping member 12 with respect to the ■-shaped groove 11,
That is, the gripping rods 12a are aligned, and the gripping portion 12b at the lower end is
grip the aluminum material 4.

In this state, as shown in FIG.
The center of gravity of the aluminum material and the center of gravity of the aluminum material coincide and are located on the same vertical line, and the wedge load P is divided into two component forces Pa on the gripping rod 12a, and the source of each component force Pa forms a V-shape. Press the inner surface of the shaped groove.

Therefore, for example, by appropriately setting the included angle θ of the ■-shaped groove 11, the best contact pressure can be obtained, and the gripping member 12 and the aluminum material 4 can be held securely, and for example, when moved during each process of surface treatment. The vibrations caused by this are also quickly damped.

In addition, since the gripping rod 12a contacts the ■-shaped groove 11 by wedge engagement with extremely high pressure, intervening components such as an oxide film can be removed from the contact portion, and the contact portion maintains a close contact state. As a result, power supply performance during electrolysis is improved, which is extremely convenient.

Further, in the above description, the upper end of the gripping member 12 has been mainly described as having a cylindrical shape.
It is sufficient that the upper end of the gripping member 12 is capable of wedge engagement, has a shape that achieves a wedge effect, and can be configured to allow the gripping member 12 to be detachably attached.

Next, an example will be described.

First, an aluminum profile (length 5150 mm, weight 3.7
5 kg) was suspended, this molded material was vibrated, and its damping performance was determined, and the damping performance was as shown by the symbols A and A2 in Fig. 9.

In this case, the value of the included angle θ of the V-shaped groove is changed to 50 @ and 90°, and the diameter of the cylindrical head is 35 m.
m, 50mmφ, θ=50', 35mm
The case of φ is indicated by A1, and the case of θ=90° and 50 mmφ is indicated by A2.

For comparison, a similar test was conducted using the apparatuses shown in FIGS. 4 and 5, and the apparatus in FIG.

As is clear from FIG. 9, in the case of the device of the present invention, even in the case of slippage, the attenuation occurred in about 10 seconds, and it was extremely effective.

In addition, aluminum profiles (length 5750 mm,
When the damping characteristics were examined for the case (weight: 10.5 kg), almost the same results as the damping characteristics for the case shown in FIG. 9 were obtained.

As explained in detail above, the present invention has a structure in which the upper end of a gripping member that grips an aluminum material at its lower end is wedge-engaged with a V-shaped groove, and the center of gravity of the gripping rod and the center of gravity of the aluminum material coincide and are on the same vertical line. The gripping member is removable and the pitch between the gripping members can be changed freely, and the gripping member can be gripped with a large contact pressure against the V-shaped groove. As the members come into contact with each other, the aluminum material is constantly vibrated during transportation by crane, so intervening components such as oxide films are removed from the contact portions, and the power supply characteristics are also improved.

That is, a V-shaped groove is formed in the electrolytic frame from which the aluminum material is suspended, and in order to engage the gripping rod of the gripping member with this V-shaped groove, a downward wedge is formed in the V-shaped groove by the suspended aluminum material. When a load is generated, the gripping rod wedges into the V-shaped groove and can be damped very effectively.

Note that the V-shaped grooves do not have to be formed continuously as in the above example, but can also be formed intermittently by cutting out required places.

[Brief explanation of the drawing]

FIG. 1 is a side view of a hanging gripping device for aluminum materials according to a conventional example, FIGS. 2 and 3 are front and side views of a hanging gripping device for aluminum materials according to a conventional example, FIG. FIG. 5 is a side view of a hanging gripping device for aluminum material according to a conventional example. FIG. 6 and FIG. 7 are a partial front view and A-A of a suspension gripping device for aluminum material according to one embodiment of the present invention.
8 is a side view of a suspension gripping device for aluminum material according to another embodiment of the present invention, and FIG. 9 is a diagram showing the damping of the device of the present invention and the devices shown in FIGS. 4 and 5. It is a graph showing a curve. Code, 1... Electrolytic frame, 1a... Power supply bar, 2... Hanging jig, 3... Gripping jig, 4... ...Aluminum material, 10...
Carrier beam, 11...V-shaped groove, 11a.
... Notch, 12 ... Gripping member, 12a
...Gripping rod, 13... Electrolytic frame, 14.
...Support piece, 15...Lead wire.

Claims (1)

[Claims] 1. Fix a pair of electrolytic frames from both sides below the carrier beam, etc., bend the lower ends of each electrolytic frame inward to form a V-shaped groove between these bent parts, and A cylindrical gripping rod is attached to the upper end of the aluminum gripping member suspended by the frame, and this gripping rod is seated in the V-shaped groove and fixed by a wedge action due to the downward load of the aluminum material. the aluminum members are engaged with each other, and further, the centers of gravity of the aluminum members are positioned on the same vertical line with respect to the gripping rod;
An aluminum hanging device characterized by holding and hanging.