JPH08296091A - Jig connector for preventing contact in surface treatment while vertical hanging - Google Patents

Abstract

PURPOSE: To prevent the contact of vertically hung works with each other by mounting >=2 clampers and bar-shaped detaining bars at the bottom ends of the works and connecting these clampers and detaining bars with slender mounting plates in a transverse direction. CONSTITUTION: The clampers 12 are inserted into the pipe-shaped or cylindrical bottom ends of the works 16 to clamp the works 16. The detaining bars 13 are inserted into the works 16 into which the clampers 12 are not inserted. A mounting plate 11 connects the clampers 12 and the detaining bars 13. The top ends of the works 16 are vertically hung to a bus bar and the works are treated. Many pins 15 are mounted at the mounting plate 11 in its longitudinal direction at the same spacings as the spacings of the works 16. The pins 15 freely rotatably penetrate the pin holes disposed at the respective bottom end sides of the clampers 12 and the detaining bars 13. Force is absorbed by the bending deformation of the clampers 12 and the detaining bars 13 and the excessive force does not act on the pins 15 when rolling occurs in the works 16. The works 16 do not approach within the prescribed spacings and do not come into contact with each other.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention hangs a long aluminum material vertically for surface treatment (electrolytic treatment such as plating treatment and electrolytic coloring treatment, coating treatment such as electrodeposition coating, dipping treatment such as alkali etching). Contact prevention jig connection body used when performing, especially wound due to contact between long materials, coating peeling,
The present invention relates to a jig for preventing contact in a vertically suspended surface treatment that can improve productivity by eliminating processing defects such as film formation defects.

[0002]

2. Description of the Related Art When a long aluminum material, for example, a long pipe material having a total length of 5 to 10 meters or a building material for sashes is hung vertically for surface treatment, it is run as shown in FIG. A large number of materials to be treated 3, 3, 3 ... Are hung on a conductive bus bar 2 installed on a trolley 1, and the material to be treated 3 is repeated in the treatment liquid in a large number of treatment tanks 4 provided along the transfer line. Then, a series of treatments of baking and drying in a heating furnace (not shown) is finally performed to form a film or a composite film on the surface of the material 3 to be processed.

However, when the material 3 to be processed is conveyed, the material 3 to be processed is
Due to the inertial force when the traveling vehicle 1 starts or stops or the liquid resistance when the material 3 to be processed is immersed in the processing liquid, the lower end thereof sways, causing various troubles as described later. Therefore, it is important to prevent rolling of the material to be treated, and various measures have been proposed.

An example of the above measures will be described with reference to FIG. 23 (for details, refer to Japanese Patent Laid-Open No. 58-2124). As a measure, the vertical guide rails 6 and 6 are suspended on the upper cross beam 5 and the workpiece 3 is treated. A guide rod 8 is attached to the lower ends of the supporting rods 7, 7 mounted on the vertical guide rails 6, 6 so as to move up and down together, and a bell crank lever (not shown) is used during the lifting operation of the workpiece 3. The guide rod 8 is brought close to the material to be processed 3. According to this measure, the material to be processed 3 does not roll laterally in the conveying direction, so that the material to be processed 3 and the processing tank 4 are prevented from colliding. be able to.

As a means for preventing the rolling of the material to be processed in the conveying direction, although not shown here, a chain that moves up and down together with the material to be processed is equipped with a protective girder (details are not shown in detail). JP-A-57-176467) and a method using a fluid jet (for details, see JP-A-63-11699).
No.) etc.

Further, although not shown here, a louver device composed of a large number of louver blades is arranged on both sides of the counter beam in the processing tank, and the louver device is closed during the lifting operation of the material to be processed. There is also one in which the collision of the material to be treated with the counter beam is prevented (for details, see JP-A-63-2).
No. 03799).

However, none of the above measures can prevent contact between adjacent materials to be processed, and therefore various processing defects due to contact, that is, a wound due to collision of materials to be processed, coating film peeling, and processing to be processed. It is difficult to eliminate film formation defects (electrolytic coloring defects, coating defects), etc. due to the adhesion of materials, and the immediate countermeasure is to set a large interval (suspension pitch) between the materials to be treated, or There is no suitable means other than fitting a synthetic rubber ring to the end of the material to be processed.

However, according to the above measures, the number of materials to be processed attached to one conductive bus bar is reduced, and according to the other measures, various kinds of rings are prepared for different shapes and sizes of the materials to be processed. There is also a problem that it is necessary to apply it to a material to be treated other than a pipe, and that the end of the material to be treated is cut off at the final stage of the treatment process, resulting in poor material yield.

[0009]

In view of the above problems, it is a first object of the present invention to prevent contact between materials to be processed and to eliminate processing defects caused by the contact by a simple means. Furthermore, the second problem is that it can be widely applied to materials to be processed having a certain range of dimensions. Furthermore, a large number of materials to be processed can be mounted on one conductive bus bar, and the material yield can be improved to improve productivity. A third object of the present invention is to provide a jig assembly for preventing contact in vertical hanging surface treatment, which can be improved. Further, it is an object of the present invention to provide a jig connecting body which can be suitably applied as a material to be treated, particularly to a hollow shape material having a circular or rectangular cross section and a complicated shape material having such a cross section.

[0010]

In order to solve the above problems, the present invention comprises seven means including the following claims. (1) (Claim 1) At least two or more sets of clamp devices in which the upper end is detachably attached to the lower end of a part or all of the vertically suspended material to be processed and suspended below the material to be processed. And a rod-shaped locking bar having an upper end freely inserted into and retracted from a lower end of a workpiece to which the clamp device is not attached, and an elongated mounting plate that laterally connects the clamp device and the lock bar. A jig connecting body for preventing contact in vertical suspension surface treatment, characterized by comprising: (2) (Claim 2) A large number of pins are mounted in the longitudinal direction of the mounting plate at the same intervals as the intervals of the material to be processed, and the pins are provided on the lower end side of each of the clamp device and the locking bar. The jig for preventing contact in vertical suspension surface treatment according to claim 1, wherein the pin hole is rotatably pierced. (3) (Claim 3) Two sets of clamping devices and a plurality of locking bars are provided, the outermost pin of the mounting plate penetrates the pin hole of the clamping device, and the other pins are locked. The jig connecting body for contact prevention in the vertically suspended surface treatment according to claim 2, which penetrates the pin hole of the bar. (4) (Claim 4) For preventing contact in the vertical suspension surface treatment according to claim 2, wherein the same number of clamp devices as the material to be treated are provided, and each pin of the mounting plate penetrates each pin hole of the clamp device. Jig connected body. (5) (Claim 5) The clamp device is made of a slender metal plate member having one end bent into a V shape to form a plate spring on the upper end side, and a slender plate-shaped insulating material. And a base portion whose upper end side is fixed to the bent portion of the leaf spring. 5. A jig for preventing contact in vertical suspension surface treatment according to claim 1. (6) (Claim 6) The clamp device comprises an oscillating portion in which one end of an elongated metal plate member is bent inward and / or outward in a V shape to form a plate spring on the upper end side, and an elongated metal plate member. A base part having an upper end side fixed to the bent part of the leaf spring, and an insulating clamp member is attached to the outer side of each upper end side of the base part and the swinging part. Item 5. A connector assembly for preventing contact in the vertical suspension surface treatment according to items 1 to 4. (7) (Claim 7) The clamp device comprises a clamp part having an engagement member projecting inward and / or externally, a base part, an oscillating part, and a restraining part, and the base part and the oscillating part are provided. Both are made of elongated metal plate members, and the lower end side of each plate member is integrally connected via a plate spring so that the clamp parts attached to the upper end parts of the plate members expand mutually, The restraint portion presses the swinging portion so that the clamp portions come close to each other, and a lever that biases the leaf spring, and a distal end of the lever that is detachably engaged to bias the leaf spring. 2. The engaging member has a stopper plate, and the tip of the biting member is formed into a blade shape or a needle shape.
5. A jig connection body for preventing contact in the vertical suspension surface treatment according to any one of 1 to 4.

[0011]

[Action]

(1) Since the lower end of the vertically suspended material to be processed is connected to the mounting plate via the clamp device or the locking bar, there is no possibility that the materials to be processed will come into contact with each other, and processing defects due to the contact will not occur. It is also possible to prevent the collision with the counter beam. (2) Since the upper end side of the clamp device, that is, the upper end side of the base part, the lock pin of the swinging part, the clamp member, and the biting member are urged to be fitted or pinched inside the material to be processed. It becomes possible to use this jig connection body as a material to be processed in a certain size range, and it is possible to reduce the kinds of jigs to be prepared as compared with the conventional ring.

(3) The hanging pitch of the material to be processed varies depending on the structure of the jig connecting body to be used, but when the clamp device and the locking bar are used together, the distance is close to twice the diameter of the material to be processed, and When a connecting body having a structure for sandwiching a material to be processed is used, the number of materials to be processed can be reduced to less than that, so that a large number of materials to be processed can be attached to one conductive bus bar.

(4) When the clamp device is clamped to the inner surface side of the end portion of the material to be processed and subjected to the required film treatment, the material to be processed does not come into contact with the outer peripheral surface, so that the entire outer surface of the material to be processed is covered. A film is formed. Therefore, it is not necessary to cut off the end portion of the material to be processed in the final step as in the prior art, and the material yield is improved.

(5) Further, even when the clamp device is clamped to the outside of the end portion of the material to be processed, the trace of the attachment of the clamp device is not conspicuous. You will not have to cut off the end of the. Therefore, the productivity is improved together with the result of the item (3).

(6) The clamp device can be properly used according to the size of the cross-sectional shape of the material to be processed, and the material can be applied to materials having various shapes and designs. (7) In each of the clamp device configurations, the tip end of the engaging member is formed into a blade shape or a needle shape so that the fitting force of the leaf spring is transmitted and is reliably fixed to the workpiece. (8) Further, when a clamp device in which the base portion and the swinging portion are simply connected in a V shape is used, since the fitting force is low, it is suitable for a small diameter one, but can be provided at low cost.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. The clamp member and the clamp member of the clamp device are made of an insulating material, and satisfy the acid resistance, alkali resistance, heat resistance, etc. according to the surface treatment to be applied, like other jig connecting body constituent members. Manufactured from material.

1 to 9 show a first embodiment of the present invention and a mode of use thereof. The main part of this embodiment is made of an elongated aluminum or stainless steel plate material as shown in FIG. And a pair of clamp devices 12 and 12 arranged near the both ends of the mounting plate 11 and the clamp devices 12 and 12 that are bent at the lower end side to enhance the bending rigidity. It is composed of three locking bars 13, 13, 13 and the like arranged in the middle at equal intervals in a manner described later, and each clamping device 12, 12 and each locking bar 13, 13, 13 is shown in FIG. 2 and FIG. As shown in FIG. 3, it is attached to the mounting plate 11 so as to be able to swing a predetermined angle around a rivet-shaped pin 15 penetrating the pin holes 14 provided on the lower end side thereof.

The pins 15 are arranged in a line in the longitudinal direction of the mounting plate 11, and the interval L between the adjacent pins 15 and 15 is set equal to the suspension pitch P of the material 16 to be treated shown in FIG. Reference numeral 17 in FIG. 1 is a pin-shaped stopper that limits the swing angle of the clamp device and the locking bar.

As shown in FIG. 3, each of the clamp devices 12 and 12 is a swinging portion in which one end of an elongated metal plate (non-rust steel or titanium) is bent into a V shape to form a plate spring 18 on the upper end side. 19, and an elongated plate-shaped base portion 20 made of an insulating material such as a ceramic material.
The upper end of the base portion 20 has a set screw 22 made of stainless steel,
It is fixed to the bent portion of the leaf spring 18 via 22.

As shown in FIG. 5, reference numeral 23 in the drawing denotes a stopper made of stainless steel, which comes into contact with the lower end of the material 16 to be processed when the clamp device 12 is fitted into the material 16 to be processed, 24. Is a ceramic lock pin that abuts on the inside of the material 16 to be processed during fitting.

As shown in FIG. 2, the locking bar 13 is made by processing the surface of an aluminum round bar with Teflon and machining the lower end side of the round bar into a plate shape. The pin 15 penetrates the pin hole 14 provided in the plate portion 25.

Next, the handling procedure and operation of the jig connecting body of the first embodiment will be described. Before attaching the jig connecting body, as shown in Japanese Examined Patent Publication No. 3-38358, the material to be processed is the upper part of the rotary arm of the carrying-in tipping table provided in advance in the racking stock yard (more specifically, the upper part of the rotary arm. It is horizontally placed on an upper part of the carrying-in conveyor provided), and the upper end of the material to be processed is connected to the conductive bus bar.

To attach the jig connecting body to the material 16 to be processed, grasp the curved rear end 11b of the mounting plate 11 and the lower ends of the swinging parts 19 of the left and right clamp devices 12 with both hands, and attach the clamp device to each of the clamp devices. As shown in FIG. 4, the upper end side and the upper end sides of the locking bars 13, 13 and 13 are made to be in a state of being narrowed so that a corresponding processed material 16, that is, a cross section such as a pipe or a building material is formed. Insert it into the lower end of the tubular material to be processed, and let go of the hand.

By this operation, the upper ends of the base portions of the left and right clamp devices and the lock pin 24 press the inside of the material 16 to be processed by the elastic force of the leaf spring 18, and the clamp device 12 is moved as shown in FIG. It is fitted to the material 16 to be processed. At this time, since the base portion 20 and the lock pin 24 are made of an insulating material, the energization of the mounting plate 11 is prevented.

As a result of the above, the mounting plate 11 is fixed to the clamp device 1.
2, 12 are attached and fixed to the material 16 to be processed, and the respective locking bars 13, 13 and 13 are supported by the mounting plate 11 with the upper ends thereof inserted into the material 16 to be processed. (See FIG. 4).

Thus, a jig connecting body is attached to the lower end of every 5 pieces of the material to be treated, and then the tipping table 90 is attached.
When rotated once to stand up, as shown in FIG.
6, 16, 16 ... Are vertically hung on the conductive bus bar 26. When the material 16 to be processed laterally sways in the direction perpendicular to the carrying direction during transportation, the diameter of the locking bar is smaller than the inner diameter of the material to be processed, so that the material 16 to be processed floats around the locking bar 13. The looseness is restrained by the locking bar 13.

That is, when the inner diameter of the material 16 to be processed is relatively large, as shown in FIG.
The workpiece 16 moves laterally in the direction of the arrow (see the phantom line) until it contacts the outside of the locking bar 13 (shown by the phantom line) at the maximum swing position, and the inside diameter of the workpiece 16 is relatively large. If it is smaller, as shown in FIG.
Touches the outside of the locking bar 13, and the material 16 to be processed laterally moves in the arrow direction until the top 28 of the locking bar contacts the inner surface side of the material 16 (see the phantom line).

The above lateral movement can be achieved by appropriately selecting the position of the stopper 17 and the length of the locking bar 13.
It can be reduced to a size close to the diameter of the material to be treated. Therefore, it is possible to reduce the hanging pitch P of the material to be processed 16 to a dimension close to twice the diameter of the material to be processed in consideration of the case where adjacent materials to be processed are moved in the direction of coming close to each other.

Further, when the material to be processed rolls laterally, the inertial force acting on the jig connecting body is absorbed by the bending deformation of the locking bar or the clamp device, so that an excessive shear load acts on the pin 15. Therefore, the pin 15 can be prevented from being damaged.

The clamp device 12 does not necessarily have to be arranged on both ends of the mounting plate 11 as shown in FIG.
The clamping device may be arranged inside and the locking bar may be arranged outside within a range where the suspension of the mounting plate 11 is balanced. Further, instead of providing the stopper 23, the material to be processed may be received by the upper end 11a of the mounting plate 11,
In this case, a resin coating is applied to the upper end 11a of the mounting plate to insulate it. The actions and effects of the first embodiment will be listed below.

(1) Since the lower end of the vertically suspended workpiece 16 is connected to the mounting plate 11 via the clamp device 12 or the locking bar 13, the workpieces do not come into contact with each other, Machining defects due to contact can be eliminated.

(2) Since the hanging pitch P of the material 16 to be processed can be reduced to a size close to twice the diameter of the material to be processed, it is possible to attach a large number of materials to be processed to one conductive bus bar 26. it can. (3) Since the clamp device is clamped inside the lower end portion of the material 16 to be processed, a film is formed on the entire outer surface of the material to be processed. Therefore, it is not necessary to cut off the end portion of the material to be processed as in the conventional case, and the material yield is improved.

(4) Since the base portion 20 and the lock pin 24 are fitted to the material 16 to be processed in a biased state, they can be commonly used for pipe materials having different diameters, and the applicable range of the clamp device is wide. Further, for the same reason, the inside of the material 16 to be processed is affected by etching or the like, and as a result, there is no possibility that the fitting portion will slide down and the jig connected body will drop even if the inner diameter becomes large. In this embodiment, the mounting plate is provided with three locking bars, but the mounting plate may be extended or shortened to provide an appropriate number of locking bars, for example, four or more.

First of Clamping Device in First Embodiment
10 is shown in FIG. In this clamp device 12a, the lock pin 24 provided in the swinging portion is eliminated, the base portion 20a is made of a long and thin stainless steel plate material, and the base portion 20a and the swinging portion 19 are further provided with a synthetic resin on the outer side. The clamp members 29, 29 made of steel are attached, and other than that, there is no difference from the first embodiment. FIG. 11 shows a state in which the clamp device 12a is attached to the material 16 to be processed.
Shown in

Second of Clamping Device in First Embodiment
Modifications of the above are shown in FIGS. The clamp device 12b of this modification includes a base portion 20b made of an elongated straight stainless steel plate material, an oscillating portion 19b also made by bending an elongated stainless steel plate material, and as shown in FIG. The V-shaped leaf spring 18a that connects the lower end of the moving portion 19b to the lower end of the base portion 20b, and the upper end portions of the base portion 20b and the swinging portion 19b are in contact with each other as shown in FIG. The leaf spring 18a includes a restraint portion 32 that holds the leaf spring 18a in a bent state, and a pair of clamp portions 33 and 34 attached to the upper ends of the swing portion 19b and the base portion 20b.

The restraint portion 32 has a pivot portion 35 fixed to the inside of the base portion 20b, a lever 36 having a tip end rotatably supported by the pivot portion 35, and the lever 36 swings as shown in FIG. When the plate spring 18a is bent at an angular position by pressing the portion 19b, the stopper spring 37 is engaged with the end of the lever 36, and the like. The pivot portion 35, the lever 36, the stopper plate 37, a pin 42 described later, and the like are all made of stainless steel.

More specifically, the lever 36 includes the swinging portion 19
a base portion 39 penetrating a slit 38 provided in an intermediate portion of b
And a handle portion 40 extending rearward from the end of the base portion 39.
And a pin 42 having a circular cross section and fixed to the base 39 so as to be orthogonal to the base 39. The pin 42 straddles the slit 38 and is formed on the outer surface of the swinging portion 19b as shown in FIG. Line contact.

The pin 42 is connected to the swinging portion 19b and the lever 36.
Serves as an intermediary for transmitting motions to each other, and when the lever 36 is rotated clockwise from the position shown in FIG.
The lever 36 pushes the swinging portion 19b downward through the pin 42 (see FIG. 14), and the stopper plate 37 causes the lever 36 to move.
When the lever is released, the swinging portion 19b flips up the lever 36 via the pin 42 to expand the swinging portion 19b to the position shown in FIG.

The stopper plate 37 is formed by bending an elongated metal plate, and has a fixing portion 43 fixed to the lower end portion of the base portion 20b and a horizontal portion 44 protruding laterally from the lower end of the fixing portion 43. And a manipulating portion 45 extending downward from the side end of the horizontal portion 44. A rectangular hole 46 for receiving the end portion of the lever 36 is formed in a portion near the outside of the horizontal portion 44 as shown in FIG. When the operating portion 45 is pressed, the horizontal portion 44 falls down as shown by an imaginary line to release the lever 36.

The pair of clamp portions 33 and 34 are both made of a ceramic material, for example, an alumina sintered body, and have an L-shaped cross section as shown in FIGS. 16 and 18, and the clamp 33 swings. The outer peripheral surface of the upper end of the moving portion 19b and the outer peripheral surface of the upper end of the base portion 19b are screwed to the clamp portion 34. As a result, electricity is prevented from being supplied from the material to be processed to the base portion 20b and the lever 36.

The outside of the clamp portion 33 is shown in FIG.
A biting member 48 having two blades 47, 47 as shown in FIG.
However, as shown in FIG. 18, two conical engaging members 49, 49 are provided on the outer side of the clamp portion 34 so as to project outward. In FIGS. 16 and 18, 50 is a hole for screwing, 52 is a hole for knock pin, and 53 is when the clamp parts 33 and 34 are inserted into the material to be processed.
It is a stopper that receives the end of the material to be processed 26 as shown in FIG.

In order to attach the clamp device 12b to the material 16 to be processed, as shown in FIG. 14, the stopper 37 is engaged with the lever 36, and the leaf spring 18a is urged. 34 into the lower end of the material to be treated,
The operating portion 45 of the stopper plate 37 is pressed in the direction of the arrow to release the lever 36.

By this operation, the upper ends of the base portion 20b and the swinging portion 19b are opened by the elastic force of the leaf spring 18a, and the engaging members 48 and 49 are moved to the workpiece 16 as shown in FIG. It bites inward and clamps the clamp device 12b to the material 16 to be processed.

Since this jig connecting body has the above-mentioned structure, it has the same operations and effects (1) to (4) as those described in the first embodiment, but is particularly suitable for treating a large-diameter pipe material or the like. It is suitable.

FIG. 20 shows the mode of use of the second embodiment of the present invention.
Shown in This embodiment can also be applied to a material to be processed having a shape such as an angle material or a flat bar other than the hollow shape material, and a clamp device 12c of a type for sandwiching the lower end portion of the material to be processed is mounted on each of the mounting plates 11. The pin 15 is swingably attached, and other than that, there is no difference from the first embodiment.

FIG. 21 shows a clamp device 12c according to another mode of the second embodiment. In this embodiment, a required number of conical biting members 49 are provided inside the pair of clamp parts 33 and 34, and the clamp parts 33 and 34 are provided in order to facilitate the clamping of the material to be processed by the biting members 49. The upper end portions of the swinging portion 19b and the base portion 20b are fitted and screwed, and other than this, there is no difference from the clamp device 12b shown in FIG.

This clamp device 12c is used for the material 16a to be treated.
21, the lever 36 is in a restrained state, and the swinging portion 19b is biased by the lever 36 in a warped state.

According to this embodiment, each biting member 49, 4
Since 9 and 49 are in point contact with the surface of the material 16a to be processed, even if the surface treatment is performed in this state, the traces of the jigs attached are inconspicuous. Therefore, if some uncleanness is allowed,
It is not necessary to cut off the end portion of the material to be processed in the final step, and the material yield is good. Although one clamp member is provided in the clamp portion 33 in FIG. 21, it is convenient to provide two or more catch members because abrasion of the catch member can be prevented.

Further, according to this embodiment, since there is no relative movement between the material to be processed and the locking bar as seen in the first embodiment, one conductive bus bar can accommodate a large number of materials to be processed vertically. Can be hung. Although the mounting plate is provided with five clamp devices in this embodiment, the length of the mounting plate may be extended to provide six or more clamp devices.

FIG. 22 shows a modification of the clamp device according to another mode of the second embodiment. This clamp device 12d is a combination mode of the clamp devices shown in FIG. 12 and FIG. 21, in which a necessary number of conical engagement members 49 are provided on both sides of the clamp portion 33 and a conical engagement member is provided outside the clamp member 34. The necessary number of insert members 49 are provided, and other than this, there is no difference from the second embodiment described above. According to this embodiment, if necessary, the first and second parts of the second embodiment
Attachment to the material to be treated shown in the embodiment becomes possible, and versatility can be enhanced.

Although not shown here, the engaging members 48 and 49 may be appropriately combined and provided on both surfaces of the pair of clamp portions. According to this jig,
It can be widely applied to materials to be processed having various sectional shapes.

The present invention is not limited to the above-mentioned embodiment, and the material to be treated may be, for example, a square pipe, a round pipe, a U-shaped angle material, a sheet metal working material, or a building material sash. It may have a complicated cross-sectional shape, and if a large number of materials to be processed are mixed in one conductive bus bar, a jig connection body of the type suitable for the materials to be processed is mixed. In addition, the engagement member may be made of a hard metal (titanium, etc.) instead of the ceramic material by insulating the engagement member from the main body, etc. Within the range not departing from the gist of the present invention. Of course, various changes can be made.

[0053]

As described above, the present invention exhibits the following excellent effects. (1) Since the lower end portion of the vertically suspended material to be processed is connected to the mounting plate via the clamp device or the locking bar, there is no risk of the materials to be processed coming into contact with each other, and processing defects due to the contact occur. Can be eliminated. Further, it is possible to provide the jig at a lower cost than in the case where the whole is configured by the clamp device.

(2) Since the clamp device is fitted or clamped on the inside of the material to be processed in the biased state, it is possible to use the jig connecting body for the material to be processed within a certain size range. Therefore, it is possible to reduce the number of types of jig connecting bodies to be prepared as compared with the conventional ring.

(3) Since the hanging pitch of the material to be processed can be reduced to an interval close to twice the diameter of the material to be processed, it is possible to attach a large number of materials to be processed to one conductive bus bar.

(4) When the clamp device is clamped inside the end portion of the material to be processed and subjected to the required film treatment, the film is formed on the entire outer circumference of the material to be treated.
Therefore, it is not necessary to cut off the end portion of the material to be processed in the final step as in the prior art, and the material yield is improved.

Further, even when the clamp device is clamped outside the end portion of the material to be processed, the trace of the attachment of the clamp device is not conspicuous. Therefore, when some uncleanness is allowed, the end portion of the material to be processed is allowed. You don't have to cut off. Therefore, the productivity is improved together with the result of the item (3).

(5) The clamp device can be appropriately used according to the size of the cross-sectional shape of the material to be processed, and can be applied to the material to be processed having various shape designs. (6) In each of the clamp device configurations, the tip end of the engaging member is formed into a blade shape or a needle shape, so that the fitting force of the leaf spring can be reliably exerted, and the mounting of the clamp device is strengthened.

(7) In the case of a clamp device in which the base portion and the swinging portion are simply connected in a V shape, the structure is simple, and thus the clamp device can be provided at low cost.

[Brief description of drawings]

FIG. 1 is an elevational view showing a first embodiment of the present invention.

FIG. 2 is a view from the direction of the arrow II-II in FIG.

3 is a view from the direction of the arrow III-III in FIG.

FIG. 4 is an elevational view showing a state in which a jig connection body is attached to a material to be processed.

5 is a view from the direction of VV in FIG.

FIG. 6 is a view from the direction of VI-VI in FIG.

FIG. 7 is an elevational view showing a state in which a jig connection body is attached to a vertically suspended material to be processed.

FIG. 8 is an elevation view showing the relative movement of the processing target material and the locking bar when the processing target material rolls laterally.

FIG. 9 is also an elevation view showing the relative movement of the processed material and the locking bar.

FIG. 10 is a side view showing a first modification of the clamp device shown in FIG.

11 is a side view showing the operation of the clamp device shown in FIG.

FIG. 12 is a side view showing a second modification of the clamp device shown in FIG.

13 is a view from the direction of the arrow XIII-XIII in FIG.

14 is a side view for explaining the operation of the clamp device shown in FIG.

FIG. 15 is likewise a side view for explaining the operation of the clamp device.

16 is an enlarged view of the clamp portion 33 shown in FIG.

FIG. 17 is a diagram viewed from the direction XVII-XVII in FIG.

18 is an enlarged view of the clamp portion 34 shown in FIG.

FIG. 19 is an arrow view from the XIX-XIX direction in FIG.

FIG. 20 is an elevational view showing a mode of use of the second embodiment of the present invention.

21 is an enlarged arrow view from the XXI-XXI direction in FIG. 20. FIG.

22 is a side view showing a modification of the clamp device shown in FIG. 21. FIG.

FIG. 23 is an elevational view of a conventional roll prevention device.

[Explanation of symbols]

 11 ... Mounting plate 12, 12a to 12d ... Clamping device 13 ... Locking bar 14 ... Pin hole 15 ... Pin 16,16a ... Workpiece material 18, 18a ... Leaf spring 19, 19b ... Shaking Moving part 20, 20a, 20b ...... Base part 29 ...... Clamp member 32 ...... Restraint part 33, 34 ...... Clamp part 36 ...... Lever 37 ...... Clasp 48, 49 ...... Bite member

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Katsumi Fujita 1-57 Ishigami Sanjo City, Niigata Prefecture Fujita Manufacturing Co., Ltd. (72) Inventor Matsuo Shimizu 1-57 Ishigami Sanjo, Niigata Prefecture Stock Fujita Works

Claims (7)

[Claims] 1. At least two or more sets of clamp devices, wherein an upper end is detachably attached to a lower end of a part or the whole of a vertically suspended material to be processed and which is suspended below the material to be processed, At the lower end of the workpiece to which the clamp device is not attached,
A jig for preventing contact in vertical suspension surface treatment, comprising: a bar-shaped locking bar having an upper end portion inserted freely in and out; and an elongated mounting plate that laterally connects the clamping device and the locking bar. Connected body. 2. A large number of pins are attached in the longitudinal direction of the attachment plate at the same intervals as the intervals of the material to be treated, and the pins have pin holes provided at the lower end side of each of the clamp device and the locking bar. The jig for preventing contact in the vertical suspension surface treatment according to claim 1, wherein the jig joint body is rotatably pierced. 3. A pair of clamping devices and a plurality of locking bars, wherein the outermost pin of the mounting plate penetrates the pin hole of the clamping device, and the other pins are the pins of the locking bar. The jig for preventing contact in the vertically suspended surface treatment according to claim 2, which penetrates the hole. 4. The same number of clamping devices as the material to be treated are provided,
The jig for contact prevention in vertical suspension surface treatment according to claim 2, wherein each pin of the mounting plate penetrates each pin hole of the clamp device. 5. A clamp device is made of an elongated metal plate material, which is made of an elongated plate-shaped insulating material, and an oscillating portion in which one end of an elongated metal plate material is bent into a V shape to form a plate spring on the upper end side. The jig for preventing contact in vertical suspension surface treatment according to any one of claims 1 to 4, further comprising a base portion whose side is fixed to a bent portion of the leaf spring. 6. A clamp device is made of a slender metal plate member, which is formed by bending one end of a slender metal plate member into a V shape to form a plate spring on the upper end side, and an elongated metal plate member. 5. A vertical portion according to claim 1, further comprising a base portion fixed to a bent portion of the leaf spring, and an insulating clamp member being attached to an outer side of each upper end side of the base portion and the swinging portion. Jigs for preventing contact in hanging surface treatment. 7. The clamp device comprises a clamp part having an engagement member projecting inward and / or externally, a base part, a swing part, and a restraint part, and both the base part and the swing part are elongated. It is made of a metal plate material, and the lower end side of each plate material is integrally connected via a plate spring so that the clamp parts attached to the upper end parts of the plate members expand each other. Is a lever that presses the swinging portions so that the clamp portions are close to each other and biases the leaf spring, and detachably engages the end of the lever to hold the leaf spring in the biased state. The contact prevention jig connection in the vertical suspension surface treatment according to any one of claims 1 to 4, further comprising a stopper plate, wherein the biting member has a tip end formed in a blade shape or a needle shape. body.