JPS6242686B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a compaction device for reducing the pitch between peaks of a continuous corrugated body.

[Problems with conventional technology]

2. Description of the Related Art Conventionally, a shrinking device for shrinking the peak pitch of a continuous corrugated body such as a heat exchanger fin has been known. Conventional compacting devices support the lower side of the wave surface of a continuous corrugated body forcibly sent out from a toothed forming roller or toothed feed roller with a guide plate, and press a braking plate against the upper side of the wave surface of the continuous corrugated body. It was designed to reduce the distance between the peak pitches of the continuous corrugated body using the braking force caused by friction. However, in the case of such a configuration, since the braking plate is pressed against the ridges of the wave shape of the continuous wavy body, fluctuations in the crest height of the continuous wavy body appear as changes in the braking force, that is, the compression force, and the There was a problem in that the fluctuations in the mountain pitch became large. Therefore, when a continuous wavy body cut to a predetermined length is subjected to a shrinking process, a problem arises in that the fluctuation in the length of the continuous wavy body after shrinkage becomes large.

In addition, since the conventional braking plates mentioned above are made of metal and make metal contact with the continuous corrugated body, the braking force changes due to changes in the surface condition of the braking surface, making it impossible to obtain a stable peak pitch. was also occurring. More specifically, when the surface of the brake plate becomes mirror-like due to the sliding of the continuous corrugated body, when the conveyance speed of the continuous corrugated body by the rollers is switched from low to high speed, for example, the contact between the continuous corrugated body and the brake plate is There was a problem that slipping occurred between the two, resulting in incomplete shrinkage of the mountain pitch.

[Means for solving problems]

As a means for solving the above problems, the present invention provides a conveying means for conveying a continuous corrugated body along a conveying line extending parallel to the longitudinal direction of the continuous corrugated body, and a conveying means disposed on both sides of the conveying line to convey the continuous corrugated body during conveyance. A pair of braking members that can come into contact with both sides of the continuous wavy body, and applying a pressing force to the braking members in a direction to narrow the gap between the braking members, create a brake between both sides of the continuous wavy body and the braking members. A device for compressing a continuous corrugated body, comprising: a pressurizing means for generating power to shorten the interval between peaks of the continuous corrugated body; and a ceramic coating layer is provided on the braking surface of the braking member. do.

[Effect]

According to the above means, the continuous corrugated body receives the braking force from the braking member in the width direction from both sides thereof. Since the variation in the width of the continuous corrugated body is extremely small compared to the variation in the peak height, the variation in the braking force is greatly reduced, making it possible to obtain a stable peak pitch interval. Furthermore, since the ceramic coating layer provided on the braking surface of the braking member is porous in nature, a substantially constant porous surface is maintained even when the surface is worn. Therefore,
Variations in braking force are eliminated by changes in the surface condition of the braking surface.

When a continuous wavy body is cut into a predetermined length and used, the continuous wavy body may be cut into a certain length in advance and subjected to shrinking processing using the apparatus of the present invention, or after being subjected to shrinking processing using the apparatus of the present invention. It may be cut to a predetermined length. In the former case, since stable shrinkage is achieved by the apparatus of the present invention, the length of the continuous corrugated body after shrinkage is also made uniform.

〔Example〕

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

FIGS. 1 to 5 show an embodiment in which a continuous corrugated body shrinking device according to the present invention is applied to a manufacturing and assembling device for heat exchanger fins. Referring initially to FIG. 2, a strip of material 10 is passed through a pair of toothed forming rollers 1 at a first station.
1 and 11, it is continuously formed into a wave shape. The continuous corrugated body 12 continuously sent out from the forming rollers 11, 11 is cut into a predetermined length by a cutting machine 13 while moving at a constant speed at a second station. The continuous wavy body 12 cut into a predetermined length is subjected to a shrinking process by a continuous wavy body shrinking device 14 at a third station, and then conveyed to a sorting drum 15 at a fourth station. At the fourth station, the continuous corrugated bodies 12 are arranged in parallel and sent to a heat exchanger core assembly station (not shown).

The compacting device 14 includes a conveying device that conveys the continuous corrugated body 12 along a conveying line extending parallel to its longitudinal direction. Figures 1 to 3 and 5
Referring to the figure, the conveying device includes a pair of upper and lower guide rails 16 and 17 that extend parallel to the conveying line and guide the upper and lower wavy surfaces of the continuous wavy body 12. On one end side of the guide rails 16 and 17, there is a pair of toothed feed rollers 18 as a first conveyor for forcibly feeding the continuous corrugated body 12 between the guide rails.
19 are arranged adjacent to each other. guide rail 16,
A belt conveyor 20 serving as a second conveyor is arranged adjacent to the other end of the continuous corrugated body 12, which supports the lower surface of the continuous corrugated body 12 sent out from the guide rail and conveys it along the conveyance line.

As shown in FIG. 1, the upper and lower guide rails 16,
A pair of braking members 21 and 22 are provided on both sides of the continuous corrugated body 17 and can come into contact with both sides of the continuous wave-like body 12 being conveyed. One braking member 21 is a fixed braking member fixedly arranged on one side of the guide rails 16 and 17, and the other braking member 22 is a fixed braking member fixedly arranged on one side of the guide rails 16 and 17.
This is a movable braking member that is rotatably disposed on the other side of 6 and 17 around a pin 23 and is movable toward and away from the fixed braking member 21 . The movable brake member 22 is connected to a pressure device 24 .
The pressurizing device 24 applies a pressing force to the movable braking member 22 in the direction of narrowing the interval between the braking members 21 and 22, thereby applying a braking force to both sides of the continuous corrugated body 12, thereby reducing the peak pitch interval of the continuous corrugated body 12. shorten.

More specifically, as shown in FIGS. 1, 2, and 5, the pressure device 24 includes a detection device 25 that detects the length of the continuous corrugated body 12 on the belt conveyor 20, and a compression spring. 26 and the compression spring 26
A pressing pin 27 that is pressed against the movable braking member 22 by a sensor 25 is provided, and an adjusting device 28 that increases or decreases the compression force of the compression spring 26 in accordance with a signal from a detection device 25. The detection device 25 is a belt conveyor 20
A front end detector 29 detects the forward end of the continuous wavy body 12 at the top, and a detector 4 detects the rear end of the continuous wavy body 12.
The detectors 29 and 30 each include a pair of light emitting elements and light receiving elements.

The adjustment device 28 includes a fixing nut member 31, a bolt member 32 screwed onto the fixing nut member 31 and connected at one end to the compression spring 26, and the bolt member 32.
A pulse motor 35 connected to the other end via gears 33 and 34 and driven by a signal from the detection device 25 is provided.

As shown in FIGS. 1, 4, and 5, trapezoidal portions 36, 37 are formed inside the braking members 21, 22, and the tops of the trapezoidal portions 36, 37 constitute braking surfaces. There is. It is sufficient that the width of the tops of the trapezoidal portions 36, 37, that is, the braking surfaces, in the continuous corrugated body feeding direction corresponds to the interval between one to two convex pitches of the continuous corrugated body 12. The braking surfaces of the braking members 21, 22 are provided with ceramic coating layers 38, 39, respectively.
The ceramic coating layers 38, 39 may be provided on the entire inner surface of the braking members 21, 22, but here, as shown in FIGS. 4 and 5,
Shallow recesses 21a and 22a are formed on the braking surfaces of the braking members 21 and 22 and around them.
Ceramic coating layer 38, 3 on a, 22a
9 is provided.

Next, the operation of the retracting device having the above configuration will be explained. The continuous corrugated body 12 cut into a predetermined length by the cutter 13 is forcibly fed between a pair of upper and lower guide rails 16 and 17 by a pair of feed rollers 18 and 19. Since the tips of the guide rails 16, 17 are formed in a knife edge shape, the sliding resistance between the upper and lower guide rails 16, 17 and the continuous corrugated body 12 is small. Upper and lower guide rails 16,1
7, both side surfaces of the continuous wave-like body 12 receive braking force from the braking members 21 and 22. This braking force is determined by the spring force of the compression spring 26,
The spring force of the compression spring 26 changes depending on the compression of the compression spring 26 by the bolt member 32. When the braking force exerted by the braking members 21 and 22 is large, the continuous corrugated body 12 is compressed more. The contracted continuous corrugated body 12 is conveyed to a drum 15 by a belt conveyor 20. In the belt conveyor 20, a detection device 25 detects the length of the continuous corrugated body 12. When the front end detector 29 detects the forward end of the continuous wavy body 12, one of the rear end detectors 30 detects the forward end of the continuous wavy body 1.
2 is detected, it is possible to detect whether the continuous wavy body 12 is within the permissible length range, or whether it is greater than or equal to the permissible range, or less than the permissible range. When the braking force, that is, the retracting force by the braking members 21 and 22 is within the appropriate range, the peak pitch interval after retracting is within the appropriate range, and therefore the length of the continuous corrugated body 12 after retracting is within the permissible range. be. The pulse motor 35 is driven by a signal from the detection device 25. If the length of the continuous corrugated body 12 after contraction is longer than the allowable range, the output shaft of the motor 35 rotates in a direction that increases the compression force of the compression spring 26, and the rotation of the output shaft causes the gears 33 and 34 to rotate. is transmitted to the bolt member 32 via the
Compression spring 26 is compressed by bolt member 32 . By such feedback control, the continuous corrugated body 12 is reduced to a desired peak pitch and desired length.

Molding oil that adheres to the wavy surface of the continuous wavy body 12 during molding of the continuous wavy body 12 causes fluctuations in the frictional resistance between the braking members 21 and 22 and the continuous wavy body 12, which in turn causes the amount of contraction of the continuous wavy body 12 to change. This causes variations in the results. However, since the strength of the contraction force is controlled by the above-described feedback control, variations in the amount of contraction are prevented.

The speed of the belt conveyor 20 can be controlled so that the continuous corrugated body 12 is conveyed in accordance with the speed at which the continuous corrugated body 12 passes through the braking members 21 and 22.

In the case of heat exchanger fins, the speeds of the forming roller 11 and feed rollers 18 and 19 are controlled to ensure a stable supply amount according to the assembly speed of the heat exchanger core. Continuous corrugated body 1 sent from feed rollers 18, 19 between upper and lower guide rails 16, 17
2 is switched from a relatively low speed to a high speed, slippage is likely to occur between the braking members 21 and 22 and the continuous corrugated body 12. In order to prevent this slippage, it is desirable that the braking surfaces of the braking members 21 and 22 have an appropriate surface roughness. However, in the case of conventional metal braking members, even if the braking surface has an appropriate surface roughness, the braking surface becomes mirror-like due to wear due to use. On the other hand, since the braking members 21 and 22 having the above structure have ceramic coating layers 38 and 39 on their braking surfaces, wear is less likely to occur. Moreover, since the ceramic coating layers 38 and 39 are essentially porous, even if abrasion occurs, the porous structure maintains an appropriately rough surface. Therefore,
Slippage between the braking surface and the continuous corrugated body 12 can be stably prevented.

Although one embodiment has been described above, the present invention is not limited to the embodiment described above, and various changes can be made to its constituent elements within the scope of the invention described in the claims. .
For example, a continuous corrugated body that is continuously formed into a corrugated shape and continuously sent out may be compressed at its peak pitches by a compressor according to the present invention before being cut into a predetermined length. Moreover, the movable brake member may be provided so as to be movable in parallel with respect to the fixed brake member.
Further, both of the pair of brake members may be movably provided so as to approach and separate from each other, and the pressurizing means or pressurizing device is formed to apply a pressurizing force to each of the pair of movable brake members. You can leave it there.

〔Effect of the invention〕

As is clear from the above description, the collapsing device according to the present invention applies braking force in the width direction not to the wavy surface of the continuous wavy body but to both sides thereof. in this case,
Since the variation in the width of the continuous corrugated body is extremely small compared to the variation in the height of the ridges, the variation in braking force can be greatly reduced, and a stable ridge pitch interval can be obtained. Furthermore, since the ceramic coating layer provided on the braking surface of the braking member is inherently porous, it is possible to maintain a porous surface with a substantially constant surface roughness even if the surface is worn away. Therefore, variations in braking force due to changes in the surface condition of the braking surface can be eliminated.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the essential parts of an embodiment of a continuous wavy body compaction device according to the present invention, and FIG. 2 is a schematic diagram of the state in which the compaction device shown in FIG. 1 is combined with a continuous wavy body forming device and a cutting device. 3 is a schematic side view of the retraction device shown in FIG. 1, FIG. 4 is a perspective view of a braking member in the retraction device shown in FIG. 1, and FIG. 5 is a schematic side view of the retraction device shown in FIG. FIG. 3 is a cross-sectional view of the main parts of the device. 16, 17... Guide rail, 18, 19...
Feed roller, 20... Belt conveyor, 21,2
2... Braking member, 24... Pressure device, 25... Detection device, 26... Compression spring, 27... Pressing pin,
27... Adjustment device, 29... Front end detector, 30...
... Rear end detector, 31 ... Nut member, 32 ... Bolt member, 35 ... Motor, 38, 39 ... Ceramic coating layer.

Claims (1)

[Scope of Claims] 1. A conveying means for conveying a continuous corrugated body along a conveying line extending parallel to the longitudinal direction thereof, and a conveying means disposed on both sides of the conveying line to abut on both sides of the continuous corrugated body being conveyed. A continuous wavy body is created by applying a pressing force to the braking member in a direction that narrows the distance between the braking members and the braking member to generate a braking force between both sides of the continuous wavy body and the braking member. 1. A device for compressing a continuous corrugated body, characterized in that the braking surface of the braking member is provided with a ceramic coating layer. 2. The conveying means includes a pair of upper and lower guide rails that extend parallel to the conveying line between the braking members and guide the upper and lower surfaces of the continuous wavy body, and a pair of upper and lower guide rails that are arranged adjacent to one end of the guide rails to guide the continuous wavy body. a first conveying body that forcibly sends between the guide rails;
A second wavy body disposed adjacent to the other end of the guide rail to support the lower surface of the continuous corrugated body sent out from the guide rail and convey it along the conveyance line.
2. The apparatus for contracting a continuous corrugated body according to claim 1, further comprising a conveyor. 3. One of the braking members is a fixed braking member fixedly disposed on one side of the guide rail, and the other braking member is disposed on the other side of the guide rail and is movable toward and away from the fixed braking member. 3. The apparatus for contracting a continuous corrugated body according to claim 2, further comprising a movable braking member provided at the pressurizing means. 4. A patent characterized in that the pressing means includes a compression spring, a pressing pin pressed against the movable braking member by the compression spring, and an adjustment device for adjusting the compression force of the compression spring. A device for collapsing a continuous wavy body according to claim 3. 5. The continuous wavy body sent out by the first carrier has a predetermined length and a predetermined number of ridges, and the pressurizing means is a detection means for detecting the length of the continuous wavy body on the second carrier. and a compression spring, a pressing pin pressed against the movable braking member by the compression spring, and an adjustment device that increases or decreases the compression force of the compression spring in response to a signal from the detection means. A device for collapsing a continuous wavy body according to claim 3. 6. Claim 6, characterized in that the detection means includes a front end detector that detects the forward end of the continuous wavy body, and at least two rear end detectors that detect the rear end of the continuous wavy body. 6. The apparatus for collapsing a continuous wavy body according to item 5. 7. The adjusting device includes a fixing nut member, a bolt member screwed into the fixing nut member and having one end connected to the compression spring, and a bolt member connected to the other end of the bolt member and configured to adjust according to a signal from the detecting means. 6. The apparatus for collapsing a continuous corrugated body according to claim 5, further comprising: a motor driven by the continuous corrugated body. 8. The continuous corrugated body according to claim 2, wherein the second conveying body comprises a pair of toothed feed rollers that mesh with the peaks of the continuous corrugated body and feed the continuous corrugated body. Shrinking device. 9. The continuous corrugated body shrinking device according to claim 2 or 5, wherein the second conveyor is a conveyor belt device.