JPS61501036A - Pressure processing equipment for moving webs - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Pressure processing equipment for moving webs The present invention applies pressure along the length of the garment being transferred 111 between the surface and the moving chain. The present invention relates to an apparatus for pressurizing the web.

An example of pressurizing moving wear is in a paper making or valve machine nip press section. It is found in the action. Continuous fibrous garments are placed close together but separated. Pressure is usually applied between at least two press rolls arranged at the same time. child The pressure exerted by these rolls on the moving garment extracts moisture from the web. Ru. Prolonging the time during which the wear is pressurized in the nip breath section. It is known that scales extract most of the water from the garment. Pressurization This will increase the length of your moving clothes and the time it takes to drain them. Attempts have therefore been made to achieve water extraction. In many cases, dryness is 40% to 45% or more. I couldn't reach the top. However, under static conditions, the paper web dries It is known that it can be squeezed to a degree of 70% or more.

Coat the press rolls with soft rubber or use deformable rolls to Attempts have been made to increase the width and therefore the pressurization time. An example of this attempt is No. 3,804□707 to Lyl Ohr et al. ing. Such an attempt involves shear acting on the web at the entrance and exit sides of the nip. Limited success was achieved due to the occurrence of shear forces.

Another proposal is to equip one of the press rolls with a concave shape complementary to the cylindrical surface of the roll. This means replacing it with a pressurizing device that provides additional pressure. For example, disclosing a figure eight cylindrical press Seen in U.S. Patent No. 3.808.096 to 3usker As such, an endless moving belt is used to provide complementary concave shapes. Ru.

A hand presses the belt against the press roll to apply sufficient pressure to the garment for dehydration work. Steps are usually installed. In the Bhasker patent, for example, filling the belt loops Means for squeezing and discharging the fluid is provided for this purpose. Holkko U.S. Patent Bundle No. 4,173,249; Hi? - Chin (M artinl no. 3.293.121, fluid pressurization It is available for sale. Mohr's U.S. Pat. No. 4.201.624 describes such bases. The use of a fixed support member that applies pressure to the bolt is disclosed.

Mohr US Pat. No. 3,853,698 uses pressurization.

Attempts to use belts to extend the nip press are not always completely successful. I couldn't say that. Gill (Q1ll) U.S. Pat. No. 4,238,287 and In No. 4,229,253 of 0,ronin, nip brake A reinforced belt is disclosed for extending the length of the seat.

Heinrich, U.S. Pat. No. 2,890,748 r-c; Discloses the use of link chain belts for drainage with nip breaths There is. However, Heinrich carries the belt in an extended nip breath. or to provide a concave press member with a shape that complements the roll shape. The possibility of using chains is not disclosed.

Other U.S. patents in this field include Qrtonl's Id. No. 3.325. No. 351 Lundin, No. 3.528.883 and Kunz ( K. unze)'s No. 3.566.781t car.

In extending the nip breath, problems were encountered with many prior art techniques, so the new Braces were not widely adopted.

For example, there is an inherent Fam between the fixed support and the belt, and this friction The resistance caused by the movement of the belt causes the belt to heat up, causing a serious problem. support The situation may be improved by lubricating the gap between the top part and the belt. belt Some systems that support fluids have problems such as complexity and sealing issues. Therefore, improvements are needed to extend the nip breath. Otherwise, it is necessary to provide another means of supporting the wear.

The device according to the invention pressurizes the moving web by pressing the wear against the surface. do. This device has a continuous link chain and chain support. This chain The chain support has a shape that complements the shape of the surface in the longitudinal direction of the chain. Move the chain closely to the surface so that it has! ll support a certain length are doing. Move with this chain! The constant length in the longitudinal direction of the web is , is pressed between the chain and the surface.

A moving belt is received on the chain on the side opposite the support. this belt moves along with the chain over the support. The web is connected to a belt and It's between the faces.

Said surface is the outer part of the rotating roll. In this case the support part is the roll It has a concave shape that complements the outer shape of.

The web may have a plurality of recesses for draining liquid from the web.

The chain support contacts the chain that is guided in the periphery of the support. In other words, it is a plate-like shape that extends around the support. and a peripheral track for guideably receiving the chain.

One form of the invention includes another similar device. in this case , the support part carrying the chain is preferably flat.

The support may be generally figure eight shaped. In this case, the support part is -5 It has a first concave portion on the side. This support is a support opposite to the first part. It has a second concave portion on the side. These two concave shaped parts are connected to the chain and the 10th- Two nips are provided between the chain and the 20th rule, respectively. The press is configured to form a press and press the garment tightly.

Preferably, the navigation section includes a continuous belt and a continuous felt between the chain and the pressure surface. where the chain is in contact with the belt and where the felt is in contact with the pressure surface. It is configured to hold the wearer in between.

The belt is pressurized on the outer surface facing the surface, that is, the opening to the hole. μλ to bar day (f nido hair 1 嬬I 入大Se Sen Fl (- Also, this belt has multiple A number of drainage openings may also be provided.

Said support may consist of a hollow flexible member filled with pressurized liquid Ijc'. child The member is made of elastomeric material and is bag-shaped.

A preferably fixed continuous belt extends around this hollow, flexible member. child A chain is guideably received on this fixed continuous belt.

If the device described above uses a continuous link chain, the nip brace can be extended. Provides an important alternative for supporting long wear. In an application example, the above check When a chain is used alone to press a garment against a surface, this garment At the same time as being pressed between the surfaces of the The garment is carried on one felt or between two felts. It is customary to do so. This belt does not have the required strength or air resistance. Grooves or holes may be made for drainage to the extent that this is not prohibited. Especially moving chain The belt can be used in combination with a support whose shape complements the pressure surface. The tag can be carried by simple and reliable mechanical means with relatively little friction. means. In fact, continuous links can eliminate the need for press rolls. There is sex. Two devices of this type are used to create a mount that is pressed between these two devices. are placed closely together through the air. In embodiments using pressurized fluid, the external pressurized fluid Pressurized fluid is used as a result of the fluid being contained within a bladder-like member connected to a supply source. The sealing problems encountered with earlier devices are eliminated.

If the device according to the invention is used in new equipment, such as a paper machine, the conventional iW& Equipment can be modified relatively easily by attaching these devices to the equipment. Traditionally Many machines are equipped with rolls, belts, and continuous link chains for machine exchange. FIG. 2 is a perspective view of the device, with a partially broken section showing the chain l support.

Figure 3 is a cross section showing the belt, chain, and support according to the embodiment shown in Figure 2. It is a diagram. FIG. 4 shows a coach press controller for paper-making paper according to a third embodiment of the present invention. 1 is a schematic elevational view of a device used for Figure 5 shows the fifth embodiment of the present invention 1 is a schematic elevational view of a device used in a two-ply press; FIG. FIG. 6 is a diagram of the present invention. FIG. 5 is a schematic elevational view of a device according to a fifth embodiment; FIG. 7 (according to the sixth embodiment of the present invention) Line 9-- of FIG. 8 showing the opening extending throughout the entire chain and guide route of the device. By 9! ! Fi6ffi. Figure 10 shows the blind hole 1 +O- in Figure 8 10 is a sectional view taken along line 10. FIG. 11 is a sectional view of a device according to a seventh embodiment of the present invention. It is. FIG. 12 is a partial longitudinal section of the device according to the eighth embodiment of the present invention @c! It is 1.

FIG. 13 is a longitudinal cross-sectional view Z taken at 913-13 in FIG. 12.

In the drawings, particularly in FIG. It is used to pressurize the garment by pressing it against the surface of the cloth. In this case the upper plate Two surfaces are provided in the lower part of the roll 2 and in the upper part of the lower press roll 4.

In conventional paper machine nip presses, rolls 2 and 4 are pressed at the same time. As the air passes between the rolls while being conveyed by a continuous felt, Pressurized. However, in Figure 5 rolls 2 and 4 are placed between these rolls. The devices 1 are vertically spaced apart.

The device 1 is connected to a chain support 8 (,: from a continuous link chain 6 supported by Become. The surface of the movable continuous belt 10 facing the guide is supported by a chain. Therefore, this belt 10 is moved together with the chain 6 stretched over the support 8. Ru. The web 12 moves with two continuous felts 14,16 and the belt 10 and pressurized between rolls 2.4. Sometimes a single piece of felt is used .

The support 8 has a generally first or upper concave portion 18 and It has a figure 8 shape with a second or lower concave portion 20 on the guiding surface. part 18 ．． 20 has a shape complementary to the outer surface 22.24 of said roll. These supports The sheet 8 section consists of two continuous felts 14. between the chain 6 and the roll 2.4. 16 and configured to sandwich the belt 14 between the chains and the web 12. has been done.

The total length of the garment between roll 2 and the support part 18 as well as the length of the garment between roll 4 and the support part 18. The entire length of the garment between sections 20 is also tightly pressurized to extract moisture.

The combination shown in Figure 5 is a construction for a press with two presser nips. It is complete.

Support 8 shown in Figure 5. The same members as chain 6 and belt 1o are shown in Figure 2. This is shown in more detail below. Multiple chains 6 and? ! The number support 8 is so as to extend perpendicularly to the width direction of the web 12 and the press rolls 2, 4 or the deformed surface. used in

Each chain 6 consists of a plurality of links 26. Each link column is as shown in Figure 3. It has a row of rollers 3o aligned in the longitudinal direction. Support 8 is rigid are plate-shaped, and are relatively spaced apart by bolts 46, 48 and spacers 50. They are arranged in mutually parallel sets. The support 8 is the chain 6 is placed inside the loop formed by. The roller 30 of the chain 6 is the third As shown in the figure, it is accommodated in the peripheral portion 52 of each support 8 so as to be freely guided. Figure 3 As shown in the figure, each chain is connected to a low Each of the longitudinal rows of la is arranged horizontally adjacent to one support in a set. It may have multiple links.

In Figure 7, instead of using separate plate-supports and guides, each support The seat has a plurality of peripheral guide tracks 54 that provide rigid support. Extending around member 60. This guide track 54 is separated by a plurality of grooves 62. It is. The rows of rows 566 are supported on the track 54 so as to be freely guided, while the rows of rows 566 are gives clearance for the side par 72 of the chain. The guide track 5 4 is made of the same material as the support member 60 and is integrated with the support member 60. or an insert of wear-resistant material.

Belt 10 is suitably made of rubber or of flexible plastic. Second? In the embodiment shown in FIG. 3, polyurethane is used. This belt 10 is an inner surface 76 adjacent to the roll 6, and an outer surface facing the surface of the roll 2 or 4, etc. It has 78. The roller chain 6 shown in FIG. 3 has a standard configuration and is serviceable. A roller 30 supported by a pin 80 is provided between the idlers 82 and 82. side The par 82 projects outwardly and inwardly to a greater extent than the rollers. the roller 30 rotates around the periphery of the support 8, so as the roller rotates, By contacting the support, its circumferential velocity is twice the linear velocity of the side par. It will be proven that The surface speed of roller 80 is the same as that of side par 82. Therefore, the belt 10 must not be in contact with both the roller and the side par. .

Therefore, the belt 6 includes a plurality of belts 86 arranged at a distance from each other. Continuous parallel ridges 84 are provided. The ridges 84 are of the same size, and these ridges are spaced apart so that they are in contact with the chain rollers, and -5 full 86 is A gap is provided for the idler 82.

As a modification, instead of providing ridges on the inner surface of the belt, the modified belt 1 shown in FIG. 01 has a flat inner surface 761. to accommodate a belt like this , a non-standard type roller with a roller 301 whose diameter is larger than the normal one Mechain 61 is used, therefore the roller protrudes more than the side par 821. I'm doing it. The support has a groove 88 in the support member 90. Implementation of Figure 3 In the example, it is also possible to use a flat belt, which belt replaces the rollers with side panels. It is used on top of the The chain in Fig. 11 is also horizontal without grooves. It can also be placed on a flat support member.

A recess is formed in the outer surface 78 of the belt, or an opening is provided for passing the belt through the checker. If you keep it straight up to the point, drainage from the garment will be improved. In Figures 2 and 3, drainage A plurality of continuous parallel grooves 92 extend longitudinally on the outer surface of the belt for There is. Also shown in FIG. 8 is a belt 10 having a plurality of drainage openings 94 or 96. ．． 2 is shown. As shown in FIG. 9, opening 94 extends completely through the belt. There is. Also, as shown in FIG. 10, a stop 606 can be used.

Figure 6 shows an example in which a set of the same type of mounting @1.6 without press rolls is used. represents. This device 16 is of the same type as device 1 and is guided to chain supports 8 and 6. The freely supported roller chain 66 and the chain support 86 move together. It has a belt 10.6 carried on a chain.

However, instead of the concave portion 18,20 of FIG. 3, each guide 8,6 has only one It has a flat portion 18.6 which is in close contact with the surface of another device 16. It supports the length of the chain so that it can be guided freely. Therefore, felt 1 4.6.16.6 Wear 12.6 between the bells over the flat part 186 of the guide As the belt and chain 66 move, pressure is applied between the belts 10.6 of the two devices. Ru.

FIG. 1 shows another form of the invention which is substantially the same as the embodiment shown in FIG. The device 1.7 includes a press roll 2.7. Chain support 8,7. chain 6.7 and a belt 107. The support has a concave portion 18,7 and a roll 27 The chain 67 is supported in close contact with the chain 67. This embodiment drives the chain 67 It includes a drive sprocket 98 consisting of means. In addition to the above-mentioned driving means, It may be used in the embodiment.

In addition to the embodiments described above, there are many variations within the scope of the invention. The belt is synthetic It can be made from aluminum or other materials of sufficient hardness to be picked up. juro Polyurethane in the 80-85 meter hardness range and approximately 174 inches thick for various purposes suitable for

Press felt is perforated and provides minimal resistance to water passage during pressurization It should remain perforated.

Felt incorporated into plastic fabric is preferred. Same as Figure 5, there are two In embodiments using press rolls, one or both press rolls may be driven. Can be done.

Figures 12 and 13 show another device J130 for pressurizing moving wear. vinegar. In this embodiment, a chain support consisting of two members 132 and 133 is fixed. It has a continuous belt 134.

In this case, the members 132 and 133 are hollow, bag-shaped, and made of rubber.

Made of flexible impermeable material such as neorene or other elastomeric material There is. A fixed continuous belt 134 extends over the uppermost portion 135 of member 132 and 2.133, and said members 132 and 133 are arranged one on top of the other. ing. The belt is sized to fit over the member. Member 132. i The inner surface 138 of the belt adjacent 33 is flat. Outer surface 140 of the belt is formed to guideably receive and receive a plurality of continuous rollers/chains 142.

In this embodiment, said belt +40 consists of a plurality of continuous flats used as peripheral guides. 144, each of which receives one of the chains 142. ing. Ridges 144 are separated by grooves 146. The chain 142 crawls The chain 1 has a roller 148 rotating along the thread 144, and the -5 full 146 has a roller 148 rotating along the thread 144. It provides clearance for the 42nd side par 150.

A movable continuous belt 152 is connected to a chain for rotation around members 132, 133. 142. The belt 152 has a plurality of alternating ridges. 156. It has an inner surface 154 with a groove 158. The ridges 156 allow the belt to While the chain 142 can ride on the ball of the roller 148, the groove 158 is Clearance is provided for the side collar 150. The movable belt 152 , has an outer surface +60 with a plurality of spaced parallel grooves 162. Ru. Grooves 162 allow liquid to drain from the garment being pressurized.

The device 130 has - pairs of connecting rods 168, 469, which connect the member 1 32.133 in the transverse direction. Pair of flat root-like lateral supports 1 70, 172 are connected i1 to opposite ends of said connecting rods at each edge of belt 134. It is. These supports 170°172 are part +1132. +33 lateral expansion is restricted. The lateral dimensions of this embodiment are in the longitudinal direction of the rod 168.169. parallel.

Member 132. +33 is connected to conduit 176.178. These conduits are Connect the member to an external source for zero-pressure fluid, whether gas or liquid. It is a means.

Variations may be made to device 130 within the scope of the invention. For example, Laura is more important than the sidebar. A chain with overhanging rollers of large diameter, for example the one shown in FIG. Chain 61 is used. In this case, the belt is similar to belt 101 in FIG. It may have a flat interior. Instead of the grooves 162, the belt is shown in FIGS. A drainage opening 94 or a blind hole 96 as shown in each of the figures may be provided. single A bladder could be used in place of the opening or blind hole. in this case , the member was annular with a connecting rod passing through a central opening in the throw. Also multiple As a result of these bag-like members being juxtaposed along the moving direction of the web, The pressure applied to the web is passed through the extended nip brace and the lever member A member 13 carrying the chain and fitting into the []-ru 174 or another such surface. It has a flexible portion corresponding to the top portion 135 of No. 2.

During use, device 132 is held against a surface, in this case a roll 174. child The roll is, for example, the brace 70 roll of the nip brace section of the e1 paper bin, or It can be a presser roll of the ll'f6tm-"-chi section. The device is a roll and the flexible member 132, 133, particularly the top portion of the member 132. By means of 135 the device is adapted complementary to the shape of the roll. 1st 3, for example, the device has a radius of curvature approximately equal to the outer radius of roll 174. It has a concavely curved top portion 177. The length of this nip is The fluid pressure supplied to the members 132 and 133 is suppressed by directing it to one side. paper making In the machine, the moving felt carrying the web is connected to a movable continuous belt 152 and a roller 174, and the top portion of the device accommodates the felt nib. It is formed to do so. The pressurized fluid within members 132, 133 causes the web to As the belt passes between the belt 152 and the roll 174, constant pressure is maintained.

The device 130 includes connecting rods 168, 169 and/or supports 170, 172. The roll 174 is supported by a structure connected to the roll 174 .

The device 130 can be used with rolls of different diameters and easily shaped into different shapes. Compatible with For this reason, a simple embodiment of the device is a conventional paper machine or another It can be easily adapted for use with pressure processing equipment. The equipment shown in Figure 6 In the same manner as in Figure 16, this type of device is used without rolls. These devices The opposing parts of are approximately flat in this case.

Claims (9)

[Claims] 1. a movable curved surface; The surface faces the movable surface and accommodates the moving web between the surface and the surface. a movable flexible belt placed a little apart from the a chain disposed behind and in contact with the belt to support the belt; A continuous movable roller chain and a belt having a shape that complements the shape of the surface are pressed together. and chain support means for supporting the moving length of the chain as it rotates by touching. Continuously moving web pressure processing equipment. 2. The web has a constant width, and the device has at least one of the chains. and a plurality of spaced apart supports extending perpendicular to the width direction of the web. , each of the supports is arranged in the longitudinal direction of the one chain. 2. A device as claimed in claim 1, in which the rollers of a chain are guideably accommodated. 3. The support has a plurality of peripheral tracks extending around a rigid support member. 2. A device according to claim 1, comprising: 4. The support is generally figure eight shaped and has a first concave shape on one side of the support. and a second concave portion on a surface of the support opposite to the first concave portion. The two concave portions are connected to the chain, the first roll and the chain. and a second roll, forming two nip braces between each of the wafer and the second roll; 2. The device of claim 1, wherein the device is configured to firmly suppress the blade. 5. The belt has an outer surface indentation which serves to drain liquid from the pressurized web. The device according to item 1 of the scope of demand. 6. The support has a member capable of containing fluid, and the member supports the chain. a flexible pouch-like portion for holding said pouch-like portion, said pouch-like portion conforming to said surface; A device according to scope 1. 7. The device further includes a stationary continuous belt extending around the member, the device further comprising a stationary continuous belt extending around the member; 7. An apparatus as claimed in claim 6, in which the wheels are received on the stationary continuous belt. Place. 8. The device has lateral supports of the section at both ends of a fixed continuous belt; Claim 6 or 6, wherein the lateral expansion of the hollow flexible part is limited by surface supports. Apparatus according to paragraph 7. 9. The device includes two members, a stationary continuous base extending around both of the members; at least one connecting rod extending between the bolt and the member. Apparatus according to paragraph 6.