JP2509152B2 - Automatic insertion and caulking prevention device for L-shaped corner member in plate flange duct - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for automatically and continuously inserting and crimping an L-shaped corner member in a plate flange duct.

[0002]

2. Description of the Related Art As an apparatus for performing the above-mentioned work, the applicant has proposed an air fastener described in Japanese Utility Model Laid-Open No. 3-95120. In this air fastener, an advancing / retreating member that is advanced and retracted by air pressure is fitted in a tubular body, and a sandwiching member that is sandwiched by the advancing / retreating member and is opened and closed by advancing and retracting the advancing / retreating member is inserted and attached.
A hooking plate is attached to one of the front ends of the sandwiching member and a pushing plate is attached to the other end, and a caulking member is provided on the inner surface of the base of the pushing plate.

[0003]

However, in the air fastener, the process of fitting the L-shaped corner members on one side for one L-shaped corner member and the process of clamping the hooked portions of the flanges one by one are performed a total of four times. However, there is a problem that the physical load on the operator is considerably heavy because the process is time consuming and is handheld.

[0004]

SUMMARY OF THE INVENTION According to the present invention, a rectangular tube-shaped main body portion and projections, protrusions or paragraph grooves are provided on the peripheral surfaces of both side opening portions of the main body portion, and a hook portion is formed by extending the four sides of the main body portion. A device for forming a bag-folding portion or a flange provided with a folded end surface inside the tip portion of the hook-shaped portion, and also by fitting an L-shaped corner member over each corner portion of the plate flange duct and caulking it. A flat plate-shaped base and a duct that supports the inside of one corner of the plate flange duct even if it moves vertically from the height of the base to the middle of the upper surface of the base and is vertically placed on the base. A support mechanism, an L-shaped corner member supply mechanism for moving and mounting one of the L-shaped corner members pre-loaded and filled between the corner flanges supported by the duct support mechanism, and the L-shaped corner L-shaped corner member supplied by the member supply mechanism A push-down tilting mechanism that pushes down the outer corner portion diagonally to push both outer side portions of the L-shaped corner member closer to the corner into the inside of the hooked portion of the flange, and pushes the entire L-shaped corner member tilted by the push-in tilting mechanism It is characterized by comprising an insertion mechanism that is fitted into the flange, and a crimping prevention mechanism that crimps the end of the hooked portion at the outer position of the L-shaped corner member inserted by the insertion mechanism inwardly. However, it is an object of the present invention to provide a device for automatically inserting and crimping an L-shaped corner member in a plate flange duct to solve this problem.

[0005]

According to the present invention, even if an L-shaped corner member is to be inserted and attached, the plate flange duct is vertically placed on the base and slidably moved so as to align both the hooked portions of one corner portion with the rear switch. When turned on, the inside of the corner of the plate flange duct is supported even if the duct support mechanism moves up from the upper surface of the base, and then the L-shaped corner member supply mechanism lowers the bottom end of the L-shaped corner member that has been pre-loaded and filled. 1 is pushed and moved so that the leg portion of the L-shaped corner member is mounted between the hooked portions of the duct corner portion. Furthermore, the pushing and tilting mechanism is L
The outer corners of the L-shaped corner member are pushed diagonally, the two outer sides of the L-shaped corner member near the corners are pushed into the inside of the hooked portion of the flange, and then the insertion mechanism pushes the upper surfaces of both legs of the L-shaped corner member. The entire L-shaped corner member is fitted into the flange, inserted, and finally the caulking mechanism is inserted.
The upper end of the hooked portion at the outer position of the L-shaped corner member is crimped inwardly to prevent the L-shaped corner member from being pulled out.

When the above series of steps are completed, all the mechanisms return to their original positions to prepare for the next work. Therefore, the operator slides the plate flange duct, aligns another corner, and again. The switch is turned on.

[0007]

An embodiment will be described below with reference to the drawings.

FIG. 1 is a perspective view showing a corner portion of a plate flange duct and an L-shaped corner member before being inserted. In both plate flange ducts D, a plate flange duct D has a rectangular cylindrical main body portion H and a main body portion. A ridge T is provided on both sides of the opening of the H, and a hooked portion K facing the ridge T by extending the four sides of the body H and a bag folded portion B inside the tip of the hooked portion K are provided. The L-shaped corner member C is formed by forming a flange F, and the L-shaped corner member C is provided with the upright portions O and O which are fitted between the flange F and the ridge T of the plate flange duct D inside the flat plate portion, and the flange F and the bag outside. Oblique side portions S and S that fit between the folded portions B are provided. M is a corner covering portion.

FIG. 2 shows an embodiment of the present invention, which is a rectangular flat plate base 1 having a widthwise direction in the short direction and the base 1.
Is provided at a position closer to the front part in the middle part of the upper surface of the base 2, and the front side facing the rear part is set in the base 2 with the shafts 3 and 3 on the base side as fulcrums.
The duct support member 4 is fitted and attached so that it can be moved upward from the height of the upper surface. The front side of the duct support member 4 forms an angle of 45 degrees on both sides with respect to the front-rear axis, and both of them come into contact with the inner wall of the corner portion of the plate flange duct D at a right angle, so that the duct support mechanism 4 is moved upward. A duct support mechanism is configured together with the cylinder 5 for advancing and retracting the push rod 6 with the sliding slope 6a for moving the push rod 6. Reference numeral 4a is a leaf spring for forced lowering of the duct supporting member 4, and 7 and 7 are contacts for aligning the inside of one corner of the plate flange duct D so as to be aligned with both front side portions of the duct supporting member 4. It is a ruler.

The corner member supply mechanism includes a duct support member 4
Of the L-shaped corner member C vertically installed at a position closer to the rear part of the front-rear axis and the L-shaped corner member C at the lowermost end of the turret 8 at a position further rearward of the load-filling turret 8 by duct support. A slide plate 9 that pushes and moves in the direction of the member 4 is arranged, and a cylinder 10 that advances and retracts the slide plate 9 is configured. Reference numeral 11 is a guide of the slide plate 9 having a height such that the L-shaped corner member C is supplied to the position above the bent portion K of the plate flange duct D.

The pushing and tilting mechanism of the L-shaped corner member C is a push shaft 12 provided obliquely downward at a position above the outer corner portion of the L-shaped corner member C which is supplied and placed on the hook K, and the push shaft 12 is moved downward. Seesaw type support member 13 and support member 13 to be pushed down
Rolls 14 that rotate vertically outside the forked legs on the other side sandwiching the fulcrum of
Slope 15a provided with rolls 14 and 14 provided on the upper surface of the front portion.
It consists of push rods 15 and 15 that roll up.

The insertion mechanism of the L-shaped corner member C has pushers 16, 16 which stand by above both legs of the tilted L-shaped corner member C.
Of the rotating members 17 and 17 provided at the front portion and the slopes 19a for rolling up the rolls 18 and 18 mounted below the base side sandwiching the rotating shaft portions 17a and 17a of the intermediate portions of the rotating members 17 and 17, respectively. It is composed of attached push rods 19 and 19. 20 and 20 are rotation return springs.

The caulking prevention mechanism rotates around the caulking plates 21 and 21 and the rear ends of the caulking plates 21 and 21 which slide forwards and backwards from the lower position of the rotating members 17 and 17 toward the upper end side of the folded portion K of the duct. Horizontal roll plates 22 and 22 to be pushed and the horizontal rolls 22 and 22
Push rod with push rolls 23, 23 for rotating and pushing
It consists of 24, 24. 25 and 25 are retreat springs. Further, 21a and 21a are long holes that avoid the leg portions 17b and 17b of the rotating members 17 and 17, and 33 is a push roll attached below the tip of the rotating members 17 and 17 in order to suppress the lifting of the caulking plate 21. .

The pushing rods 15, 15, 19, 19 and 2 described above are provided.
Numerals 4 and 24 are fixed to a slide base 27 that moves forward and backward on the base 1 by one large cylinder 26 with a difference in distance that causes a time difference.

Further, 28 and 28 are extension pedestals which are attached to the front ends of both sides of the base 1 at the same height as the base 1 when handling a large duct, and 29 is a roller for moving the apparatus, and a link plate between the front and rear rollers. 30 and 30 are connected to each other, and when the lever 31 is rotated, the handle 31 is rotated to project below the base 1 so that the base 1 can be floated and moved. 32 is the stopper.

According to the present invention having the above-mentioned structure, the plate flange duct D is vertically placed on the base 1 and slidably moved even when the L-shaped corner member C is to be inserted.
When the rear side switch is turned on by aligning the hooks K and K on both sides of one corner with the rulers 7 and 7,
As shown in FIG. 4, the cylinder 5 of the duct support mechanism shrinks and pushes the push rod 6 toward the duct support member 4 to form a sloped surface.
Even when the front side of the duct supporting member 4 is moved up from the upper surface of the base 1, the inside of the corner portion of the plate flange duct D is supported by the 6a which goes under the duct supporting member 4. Next, as shown in FIG. 5, the cylinder 10 of the L-shaped corner member supply mechanism is contracted, and the slide plate 9 pushes and moves one of the lowermost ends of the L-shaped corner members C previously loaded and loaded in the loading and filling turret 8. Then, when both legs of the L-shaped corner member C are placed between the bent portions K, K of the corner portion of the duct D, the large cylinder 26 extends and moves the slide base 27, as shown in FIGS. 7 to 8. First, the pushing rods 15 and 15 roll up the rolls 14 and 14 of the pushing and tilting mechanism to rotate the seesaw type supporting member 13, and the pushing shaft 12 attached to the other side moves the outer corner portion of the L-shaped corner member C. By pushing down diagonally, both outer side portions of the L-shaped corner member C near the corners are pushed into the inside of the hooked portions K, K of the flanges F, F.
When the large cylinder 26 is subsequently extended, the push rods 19, 19 of the insertion mechanism roll up the rolls 18, 18 of the rotating members 17, 17 as shown in FIGS. 10 to 11, so that the rotating members 17, 17 are pushed. Part 16, 16
Presses the upper surfaces of both legs of the L-shaped corner member C at the same time
Shaped corner member C as a whole, with ridge T of flange F and bag fold B
Insert and fit between the lower flanges, and then
As shown in FIG. 13, the pushing rods 24, 24 of the crimping mechanism push rollers 23, 23 at the front end push the horizontal roll plates 22, 22, and the pushed horizontal pushing rolls 22, 22 are behind the crimping plates 21, 21. By pressing the ends, the upper ends of the hooks K, K at the outer position of the L-shaped corner member C inserted and attached are swaged inward to form a swaged part G, and as shown in FIG. The L-shaped corner member C is caulked so as not to be pulled out.

The above steps are continuously carried out with a slight time difference, and when all the series of steps in less than 2 seconds are completed, all the mechanisms return to their original positions to prepare for the next work. The operator slides the plate flange duct D to move it, abuts another corner portion against the rulers 7, 7 and positions them, and turns the switch on again.

The rotating member 1 of the insertion mechanism in the embodiment
Since the rotating shafts 17a and 17a, which are pivots of rotation, are provided at positions 7 and 17 in the base 1 lower than the upper surface of the base, the pushers 16 and 16 are provided.
As shown in Fig.15, the trajectory drawn by is an arcuate trajectory above the semicircle and goes from the low and distant position toward the flange duct D side. Therefore, the tolerance shown in Fig.16 (a) (b) For example, contact may be made when inserting the L-shaped corner member C into a plate flange duct having a low height or in a duct having a shape in which the side of the main body H shown in (c) protrudes outside the corner and is inclined. It can be done reliably without any trouble.

[0019]

As described above, according to the present invention, if the position of the plate flange duct is adjusted, the processes from the support of the duct to the insertion of the L-shaped corner member, the insertion and the caulking are automatically performed. In addition, since the work can be performed instantaneously, the work efficiency of this kind can be dramatically improved, and an L-shaped corner member can be easily attached even to an inexperienced worker.

Since the base is constructed in the shape of a flat plate and the duct supporting mechanism is moved upward from the upper surface of the base after positioning the ducts, the mounting position of the plate flange duct can be slid without lifting the ducts. Since it can be performed by moving, there is an effect that the physical load on the operator can be significantly reduced, especially when handling a large duct.

Further, since the L-shaped corner member before the insertion is tilted so that both outer side portions near the corners are fitted into the hooks of the flanges in advance, the hooks of the flanges are pressed by the pressing during the inserting process. This brings about an effect that it is possible to surely prevent an accident such as crushing.

[Brief description of drawings]

FIG. 1 is a perspective view showing a corner portion of a plate flange duct and an L-shaped corner member before mounting.

FIG. 2 is a plan view showing an embodiment of the device of the present invention.

FIG. 3 is an operational plan view of the duct support mechanism.

FIG. 4 is a partially enlarged vertical sectional view of the same state.

FIG. 5 is an operational plan view of an L-shaped corner member supply mechanism.

FIG. 6 is a partially enlarged vertical sectional view of a pushing-in and tilting mechanism.

FIG. 7 is an operation plan view of the pushing-in and tilting mechanism.

FIG. 8 is a partially enlarged vertical sectional view of the same state.

FIG. 9 is a partial enlarged vertical sectional view of the insertion mechanism.

FIG. 10 is an operational plan view of the insertion mechanism.

FIG. 11 is a partially enlarged vertical sectional view of the same state.

FIG. 12 is an operational plan view of a caulking prevention mechanism.

FIG. 13 is a partially enlarged vertical sectional view of the same state.

FIG. 14 is a partial perspective view showing a state in which an L-shaped corner member is inserted and caulked in the corner portion of the plate flange duct.

FIG. 15 is an explanatory diagram showing a track of a rotating member of the insertion mechanism.

16 (a) is a diagram showing the shape of an inner-outer R-shaped elbow pipe, (b) is a shape of an outer-R inner-right angle elbow pipe, and (c) is a diagram of a square duct hopper pipe.

[Explanation of symbols]

 1 is a base 2 is a hole 3 is a shaft 3 is a shaft 4 is a duct support member 5 is a cylinder 6 is a pushing rod 6a is a sloped surface 7 is a ruler 8 is an L-shaped corner member loading / filling slag 9 is a slide plate 10 Cylinder 11 is guide 12 is push shaft 13 is seesaw type support member 14, 14 is roll 15, 15 is push rod 15a, 15a is slope 16, 16 is push part 17, 17 is rotary member 17a, 17a is rotary shaft Parts 17b and 17b are legs 18, 18 are rolls 19, 18 are push rods 19a, 19a are slopes 20, 20 are return springs 21, 21 are caulking plates 21a, 21a are long holes 22, 22 are horizontal roll plates 23, 23 is a push roll 24, 24 is a push rod 25, 25 is a retracting spring 26 is a large cylinder 27 is a slide base 28, 28 is an extension base 29, 29, 29, 29 is a moving roller 30, 30 is a link plate 31 is the handle 32 is the stopper 33 is the push roll

Claims (1)

(57) [Claims] 1. A rectangular tube-shaped main body portion and protrusions, projections or paragraph grooves are provided on the circumferential surfaces of both side opening portions of the main body portion, and the hook portion and the tip portion of the hook portion are formed by extending the four sides of the main body portion. A device for forming a flange provided with a bag folding portion or a folded back end surface inside, and for fitting an L-shaped corner member over each corner portion of a plate flange duct and caulking and fixing, A base and a duct support mechanism that supports the inside of one corner of the plate flange duct even when vertically moved on the base by moving from the height of the base to the middle of the upper surface of the base, and the duct support. An L-shaped corner member supply mechanism that moves and mounts one of the L-shaped corner members that are pre-loaded and filled between the flanges of the corner portions supported by the mechanism, and the L-shaped corner member supply mechanism supplies the L-shaped corner member. Push down the outer corner of the L-shaped corner member diagonally Of the L-shaped corner member by pushing both outer side portions of the L-shaped corner member into the inside of the hooked portion of the flange, and the insertion of the entire L-shaped corner member tilted by the pushing and tilting mechanism into the flange. A plate flange duct characterized by comprising a mounting mechanism and a caulking prevention mechanism for crimping inwardly an end of a hooked portion at an outer position of the L-shaped corner member inserted and mounted by the insertion mechanism. L-shaped corner member automatic insertion and caulking prevention device.