Warping device

Abstract

The present invention relates to a warp sizing device including a sizing tank storing sizing liquid, a first roller immersed in the sizing liquid in the sizing tank, and a second roller externally tangent to the first roller in a manner that the second roller passes through the path of the warp, and configured such that a supply portion for supplying the sizing liquid is provided on one side of one of the front and rear end walls in the sizing tank, and the height position of the upper edge of the overflow side end wall on the side opposite to the end wall on which the supply portion is provided, i.e., the supply side end wall, is a position lower than the height position of the upper edge of the supply side end wall, so that the sizing liquid overflows from the overflow side end wall. The present invention aims to provide a warp sizing device capable of preventing the condition of the sizing liquid in the sizing tank from deteriorating due to an increase in the foreign matter floating around the liquid surface of the sizing liquid in the sizing tank. The warp sizing device is characterized in that the left and right side walls in the sizing tank include an overflow portion allowing the sizing liquid to overflow from the upper edge.

Description

Technical Field

[0001] This invention relates to a warp sizing device, which includes a sizing tank consisting of a base plate, front and rear end walls, and left and right side walls for storing sizing liquid, a first roller immersed in sizing liquid in the sizing tank, and a second roller connected externally to the first roller through a path of the warp yarns. The device is configured such that a supply part for supplying sizing liquid is provided on one side of one of the front and rear end walls in the sizing tank, and the upper edge of the overflow side end wall opposite to the side of the end wall where the supply part is provided is at a lower height than the upper edge of the supply side end wall, so that the sizing liquid overflows from the overflow side end wall. Background Technology

[0002] As an example of the aforementioned warp sizing device, there is the device disclosed in Patent Document 1. The warp sizing device disclosed in Patent Document 1 includes a sizing tank for storing sizing liquid, a lower sizing roller (first roller) immersed in the sizing liquid within the sizing tank, and an upper sizing roller (second roller) connected externally to the first roller. Furthermore, the warp sheet passes between the first roller and the second roller, thereby squeezing out excess sizing liquid from the warp sheet.

[0003] In addition, foreign matter such as warp yarn lint or fly ash, oil adhering to the warp yarn, and air bubbles caused by the rotation of the sizing rollers float on the surface of the sizing solution in the sizing tank. Therefore, in a typical warp sizing device, in order to remove foreign matter floating on the surface, new sizing solution is continuously supplied into the sizing tank, so that the foreign matter on the surface overflows out of the tank along with the old sizing solution.

[0004] Existing technical documents

[0005] Patent documents

[0006] Patent Document 1: Japanese Patent Application Publication No. 4-50357 Summary of the Invention

[0007] The problem that the invention aims to solve

[0008] However, in the warp sizing apparatus of Patent Document 1, new sizing liquid is supplied into the sizing tank from one side of the rear end wall (the rear end wall). Furthermore, the other end wall of the sizing tank (the front end wall) is configured such that its upper edge is lower than the upper edge of the rear end wall. Therefore, in this sizing tank, as sizing liquid is supplied from the rear end wall, it overflows from the front end wall. Thus, in this sizing tank, the rear end wall becomes the supply-side end wall as described in this invention, and the front end wall becomes the overflow-side end wall. Moreover, by causing the sizing liquid to overflow from the front end wall in this way, the sizing liquid near the surface where the aforementioned foreign matter floats is discharged out of the tank, preventing the deterioration of the state of the sizing liquid within the tank.

[0009] Furthermore, in the region in front of the first roller in the tank (the region between the first roller and the front end wall), due to the forward flow of slurry caused by the rotation of the first roller, foreign matter floating in the slurry in this region (front region) is discharged out of the tank in a short time. However, in the regions on both sides of the first roller in the tank (side regions), some floating foreign matter remains in this region, resulting in a deterioration of the slurry condition in the tank.

[0010] In detail, in conventional warp sizing devices, including the one described in Patent Document 1, the gap between the left and right sidewalls of the sizing tank and the first roller is relatively narrow, and the lateral regions are much smaller than the front regions. Furthermore, the flow of sizing liquid towards the front in these lateral regions due to the rotation of the first roller is much weaker than in the front regions. Therefore, the flow of sizing liquid is weak in these lateral regions, and foreign matter floating near the surface may remain in these areas for a certain period. In contrast, since foreign matter is continuously generated during the operation of the warp sizing device, there is a concern that, depending on the circumstances, foreign matter remaining in the lateral regions may flow towards the front regions and adhere to the warp sheets, etc., and that the amount of foreign matter may increase to the point of adversely affecting the sizing of the warp sheets (deterioration of the state of the sizing liquid in the tank).

[0011] Therefore, the object of the present invention is to provide a warp sizing device that can prevent, as far as possible, the growth of foreign matter near the liquid surface and the deterioration of the state of the sizing liquid in the sizing tank.

[0012] Solution for solving the problem

[0013] To achieve the above objectives, the present invention is based on the aforementioned warp sizing device, characterized in that the left and right sidewalls include overflow portions that allow sizing liquid to overflow from the upper edge.

[0014] Furthermore, the "overflow portion that allows slurry to overflow from the upper edge" mentioned here refers to a portion of the sidewall in a slurry tank configured such that slurry overflows from the upper edge of the overflow sidewall, the height of its upper edge is determined by the relationship between its height position and the upper edge of the overflow sidewall, as well as by the type of slurry, the amount of slurry supplied to the tank, etc., in a manner that allows slurry to overflow from the upper edge of the overflow sidewall and also from its own upper edge. Moreover, this overflow portion is not limited to a part of the sidewall; it can also be the entire sidewall.

[0015] Furthermore, in this invention, the two side walls may include movable plates that can change their height position, and the aforementioned overflow portion is defined according to the height position of the movable plates.

[0016] The effects of the invention are as follows.

[0017] According to the warp sizing apparatus of the present invention, in a sizing tank where the sizing liquid overflows from the upper edge of the overflow side end wall, the left and right side walls include overflow portions that allow the sizing liquid to overflow from the upper edge. That is, the sizing tank is configured such that the sizing liquid overflows from the upper edge of the overflow side end wall, and the sizing liquid also overflows from the upper edge of at least a portion of the left and right side walls. Therefore, foreign matter is less likely to accumulate in the aforementioned lateral regions. Thus, the warp sizing apparatus of the present invention, compared to a warp sizing tank that allows the sizing liquid to overflow only from the upper edge of the overflow side end wall, can prevent the deterioration of the state of the sizing liquid in the tank as much as possible.

[0018] Furthermore, if the left and right sidewalls are constructed by including movable plates that can change their height position, and the overflow portion is defined according to the height position of the movable plates, then the overflow state of the slurry overflowing out of the tank can be appropriately adjusted according to the type of slurry, the amount of slurry supplied, etc. Attached Figure Description

[0019] Figure 1 This is a side view of a warp sizing device according to one embodiment of the present invention.

[0020] Figure 2 yes Figure 1 Top view.

[0021] Figure 3 yes Figure 1 A three-dimensional view of the sizing tank.

[0022] Symbol Explanation

[0023] 1—Warp sizing device, 3—Sizing trough, 4—Base plate, 5—Front end wall, 6—Rear end wall, 7—Left side wall, 8—Right side wall, 11—Sizing roller, 11a—Roller section, 11b—Shaft section, 13—First squeeze roller, 13a—Roller section, 13b—Shaft section, 14—Gap, 15—Second squeeze roller, 15a—Roller section, 15b—Shaft section, 18—Sizing liquid accumulation section, 20—Sizing liquid supply device, 22—Supply trough, 24—Supply nozzle, 26—Pipeline, 30—Supply section, 40—Recovery trough, S—Sizing liquid, T—Warp sheet. Detailed Implementation

[0024] The following is based on Figures 1-3 An embodiment (example) of the warp sizing apparatus of the present invention will be described. Furthermore, this example is an example in which the warp sizing apparatus 1 includes a sizing roller 11, which serves as a first roller immersed in sizing liquid in a sizing tank, and two extrusion rollers 13 and 15, which serve as a second roller connected to the outside of the first roller.

[0025] The warp sizing apparatus 1 includes a sizing tank 3 for storing sizing liquid S, a sizing roller 11 with warp yarn sheets T wound on it and immersed in the sizing liquid S, and a first squeeze roller 13 and a second squeeze roller 15 connected to the sizing roller 11. Furthermore, the warp sizing apparatus 1 also includes a sizing liquid supply device 20 that supplies the sizing liquid S from above to the external connection position between the sizing roller 11 and the first squeeze roller 13. The detailed components of this warp sizing apparatus 1 are as follows.

[0026] The sizing tank 3 is roughly rectangular when viewed from above, and is formed by a base plate 4 forming the bottom surface, front and rear end walls 5 and 6 erected from the four end edges of the base plate 4, and left and right side walls 7 and 8. Furthermore, the long side of the rectangular bottom surface is the width direction of the sizing tank 3 (the direction opposite to the side walls 7 and 8), and the short side is the front and rear direction (the direction opposite to the end walls 5 and 6).

[0027] Furthermore, a supply section 30 is provided on the rear end wall (rear end wall) 6 of the slurry tank 3, which is connected to the supply source of the slurry S described below. Moreover, by supplying the slurry S into the slurry tank 3 via the supply section 30, the slurry S is stored in the tank.

[0028] The sizing roller 11 consists of a roller portion 11a that winds the warp yarn sheet T and shaft portions 11b, 11b located at both ends of the roller portion 11a. Furthermore, the sizing roller 11 is supported by its two shaft portions 11b, 11b in a manner rotatable relative to the frame (not shown) of the warp sizing device 1. In addition, the sizing roller 11 is configured such that, when viewed from above, the roller portion 11a is located within the area of ​​the sizing tank 3, and its axial direction is aligned with the aforementioned width direction. Furthermore, the sizing roller 11 is configured such that, in the vertical direction, the lower end of the roller portion 11a is positioned below the upper edge of the front end wall (front end wall) 5. Thus, when the sizing liquid S is stored in the sizing tank 3, the lower part of the sizing roller 11 is immersed in the sizing liquid S.

[0029] Furthermore, the warp sizing device 1 includes a drive mechanism (not shown) for rotating and driving the sizing roller 11, which is actively rotated in accordance with the movement of the warp yarn T. Moreover, the warp yarn T is guided in the form of a roller portion 11a wound around the sizing roller 11, and is immersed in the sizing liquid S during its passage through the roller portion 11a, thus becoming a state impregnated with the sizing liquid S.

[0030] Based on this, a second extrusion roller 15 for extruding the sizing liquid S from the impregnated sizing tank 3 from the warp yarn T is arranged in a configuration located in front of the sizing roller 11. Similar to the sizing roller 11, the second extrusion roller 15 is composed of a roller portion 15a and shaft portions 15b, 15b provided at both ends of the roller portion 15a.

[0031] Furthermore, the second squeeze roller 15 is supported at its two shaft portions 15b, 15b in a direction whose axial direction is aligned with that of the sizing roller 11, allowing it to rotatably relative to the aforementioned frame. Additionally, the second squeeze roller 15 is supported relative to the aforementioned frame via a pressing mechanism (not shown), and its roller portion 15a is externally connected to it in a state where it is pressed against the roller portion 11a of the sizing roller 11. Therefore, as described above, the second squeeze roller 15 rotates consequently as the sizing roller 11 is rotated.

[0032] Furthermore, in this embodiment, the second extrusion roller 15 is configured such that its axis is positioned slightly above the axis of the sizing roller 11. Therefore, the outer position of the second extrusion roller 15 relative to the sizing roller 11 is located on the outer peripheral surface of the roller portion 11a of the sizing roller 11, slightly above the shaft portion 11b in the vertical direction.

[0033] Based on this, the warp sheet T, which is wound around the sizing roller 11 as described above, is pulled outward after passing between the sizing roller 11 and the second squeeze roller 15 as described above. Moreover, when passing between the sizing roller 11 and the second squeeze roller 15 in this way, excess sizing S is squeezed out from the warp sheet T, which is impregnated with sizing S, as described above.

[0034] Furthermore, on the upstream side of the sizing roller 11, there is a supply nozzle 24 for supplying sizing S to allow sizing S to permeate the warp yarn T on the upstream side, and a first extrusion roller 13 for extruding the sizing S supplied by the supply nozzle 24.

[0035] In detail, similar to the second press roller 15, the first press roller 13 is composed of a roller portion 13a and shaft portions 13b, 13b located at both ends of the roller portion 13a. Furthermore, the first press roller 13 is supported at its two shaft portions 13b, 13b in a manner rotatable relative to the frame, with its axial direction aligned with that of the sizing roller 11. Also, similar to the second press roller 15, the first press roller 13 is supported rotatably relative to the frame via the aforementioned pressing mechanism. Therefore, the first press roller 13 is externally connected to the roller portion 11a of the sizing roller 11 and rotates consequently as the sizing roller 11 is rotated.

[0036] Furthermore, in this embodiment, the position of the first extrusion roller 13 at its axis in the vertical direction is approximately the same as the position of the axis of the second extrusion roller 15. That is, the first extrusion roller 13 is symmetrically arranged relative to the sizing roller 11 in the aforementioned front-back direction. Therefore, the outer contact position of the first extrusion roller 13 relative to the sizing roller 11 on the outer peripheral surface of the roller portion 11a of the sizing roller 11 is approximately the same in the vertical direction as the outer contact position of the second extrusion roller 15 relative to the sizing roller 11.

[0037] Furthermore, by connecting the first extrusion roller 13 externally to the slurry roller 11 in this way, a wedge-shaped gap 14 is formed between the slurry roller 11 and the first extrusion roller 13. Moreover, a supply nozzle 24 for supplying slurry S toward the gap 14 is provided above the gap 14.

[0038] The supply nozzles 24 are arranged in a plurality of manner within the range of the roller portion 11a in the axial direction of the slurry roller 11, and spaced at predetermined intervals in the width direction. Moreover, the slurry S is supplied from above to the gap 14 via each supply nozzle 24, thereby forming a slurry accumulation section 18 in which the slurry S is accumulated in the gap 14.

[0039] Based on this, the warp yarn T is guided in the form of a roller portion 13a wound around the first squeeze roller 13, and after passing between the externally connected sizing roller 11 and the first squeeze roller 13 as described above, it is wound around the sizing roller 11 as described above. Then, through the sizing accumulation portion 18 formed between the two rollers, the warp yarn T is made to be impregnated with sizing S. Moreover, when the warp yarn T impregnated with sizing S passes between the sizing roller 11 and the first squeeze roller 13, excess sizing S is squeezed out from the warp yarn T.

[0040] Furthermore, each supply nozzle 24 is part of a sizing supply device for supplying sizing liquid S from above to the gap 14, as described above, and the warp sizing device 1 includes such a sizing supply device 20. In addition to the aforementioned supply nozzles 24, the sizing supply device 20 also includes a supply tank 22 as a supply source for the sizing liquid S supplied to the supply nozzles 24. Moreover, in the sizing supply device 20, the supply tank 22 is connected to each supply nozzle 24 via a pipe 26, and a pump P is provided in the pipe 26, which supplies sizing liquid S to each supply nozzle 24. Furthermore, in this embodiment, a branch of the pipe 26 is also connected to the supply section 30, and the sizing supply device 20 also supplies sizing liquid S to the upper sizing tank 3.

[0041] Furthermore, in the warp sizing device 1, sizing liquid S is supplied to the upper sizing tank 3, causing the stored sizing liquid S to overflow out of the tank. Therefore, the warp sizing device 1 is provided with a recovery tank 40 below the sizing tank 3 for recovering the overflowed sizing liquid S.

[0042] The recovery tank 40, like the sizing tank 3, is a box-shaped structure with an open top. The distance between its front and rear end walls 41 and 42 is larger than the dimension of the sizing tank 3 in the short side direction (front-rear direction), and the distance between its left and right side walls 43 and 44 is larger than the dimension of the sizing tank 3 in the long side direction (width direction). Furthermore, the sizing S in the sizing accumulation section 18 within the gap 14 overflows to both sides of the roller section 11a of the sizing roller 11 and the roller section 13a of the first compression roller 13 through the supply of sizing S from the supply nozzle 24, and this overflowing sizing S is also recovered by the recovery tank 40. Based on this, the warp sizing device 1 is configured to supply the sizing S recovered by the recovery tank 40 to the supply tank 22.

[0043] In the warp sizing device 1 described above, in this invention, based on the aim of preventing the deterioration of the state of the sizing liquid in the sizing tank as much as possible, the sizing tank is configured such that the left and right side walls include overflow portions that allow the sizing liquid to overflow from the upper edge. Hereinafter, an embodiment of such a sizing tank 3 in this invention (this embodiment) will be described in detail.

[0044] First, in the slurry tank 3, the front end wall 5 is composed of a fixed end wall 5a, which is an integral part of the base plate 4 and is erected from the base plate 4, and a front movable plate 5b mounted on the fixed end wall 5a. Furthermore, the fixed end wall 5a has the same width dimension as the base plate 4, and when viewed in the thickness direction, it is a rectangle with its side parallel to the width direction being the longer side. The fixed end wall 5a has an externally threaded portion 5a1 that protrudes axially from its outer end face (the end face opposite to the end face opposite the rear end wall 6) and has external threads formed on its outer periphery. Moreover, four of these externally threaded portions 5a1 are provided relative to the fixed end wall 5a in a manner that is evenly spaced along the width direction (the direction of the longer side of the fixed end wall 5a).

[0045] Furthermore, the front movable plate 5b is a rectangular plate material when viewed in the thickness direction, and its dimension along the long side of its end face is approximately the same as the dimension along the long side of the fixed end wall 5a. In this embodiment, the dimension along the short side of the end face of the front movable plate 5b is also approximately the same as the dimension along the short side of the end face of the fixed end wall 5a. Additionally, the front movable plate 5b has a through hole 5b1, which is a hole for inserting into the external thread portion 5a1 in the fixed end wall 5a and is formed to extend through in the thickness direction. Furthermore, four through holes 5b1 are formed such that, with the front movable plate 5b and the fixed end wall 5a aligned in the width direction, they are aligned with the positions of each external thread portion 5a1. Based on this, the front movable plate 5b is installed relative to the fixed end wall 5a in the following manner: the corresponding external threaded part 5a1 is inserted into each through hole 5b1, and the nuts that are threadedly engaged with each external threaded part 5a1 are tightened, thereby using the outer end face of the fixed end wall 5a and each nut to clamp the front movable plate 5b.

[0046] Furthermore, each through hole 5b1 of the front movable plate 5b is formed as an elongated hole with a longer length in the aforementioned short side direction of the front movable plate 5b. This allows the front movable plate 5b to change its mounting position relative to the fixed end wall 5a in the vertical direction. Moreover, the fixed end wall 5a in the front end wall 5 is configured such that the height of its upper edge is lower than the height of the upper edge of the rear end wall 6. Based on this, each through hole 5b1 is configured such that, when the front movable plate 5b is mounted on the fixed end wall 5a at its lowest position, the height of the upper edge of the front movable plate 5b is the same as the height of the upper edge of the fixed end wall 5a.

[0047] Furthermore, each through hole 5b1 is configured such that, when the front movable plate 5b is mounted to the fixed end wall 5a at its highest position, the upper edge of the front movable plate 5b is lower than the upper edge of the rear end wall 6. In other words, the rear end wall 6 is configured such that even when the front movable plate 5b in the front end wall 5 is at its highest position, its upper edge is still above the front end wall 5. Therefore, regardless of the position of the front movable plate 5b relative to the fixed end wall 5a, the upper edge of the front end wall 5 is always lower than the upper edge of the rear end wall 6.

[0048] Based on this, in the slurry tank 3, the stored slurry S overflows from at least the upper edge of the front end wall 5 (front movable plate 5b) as the slurry S is supplied into the tank, as described above. Therefore, in this embodiment, the rear end wall 6 corresponds to the supply side end wall described in this invention, and the front end wall 5 (fixed end wall 5a + front movable plate 5b) corresponds to the overflow side end wall described in this invention.

[0049] Furthermore, in this slurry tank 3, similar to the front end wall 5, the left and right side walls 7 and 8 are composed of fixed side walls 7a and 8a, which are erected from the base plate 4, and lateral movable plates 7b and 8b respectively installed on the fixed side walls 7a and 8a. Therefore, the two fixed side walls 7a and 8a are integrally formed with the base plate 4, the fixed end wall 5a, and the rear end wall 6, extending between the fixed end wall 5a and the rear end wall 6 in the front end wall 5. Moreover, the two fixed side walls 7a and 8a are formed such that the height of their upper edges is the same as the height of the upper edge of the fixed end wall 5a in the front end wall 5. As a result, the height of the upper edges of the two fixed side walls 7a and 8a is also lower than the height of the upper edge of the rear end wall 6.

[0050] Furthermore, the two fixed sidewalls 7a and 8a have external thread portions (only 7a1 is shown in the figure) on their outer surfaces (the end faces opposite to the end faces of the two sidewalls 7 and 8 on the opposite side of the other sidewall). These external thread portions are formed in the same shape as the external thread portion 5a1 of the fixed endwall 5a in the front endwall 5 described above. In addition, two of these external thread portions are provided on the outer surfaces of each fixed sidewall 7a and 8a in the aforementioned front-rear direction.

[0051] Furthermore, each of the side movable plates 7b and 8b is a rectangular plate material when viewed in the thickness direction. Moreover, the dimensions of the short side of the end face of each of the side movable plates 7b and 8b are approximately the same as the dimensions of the short side of the end face of the front movable plate 5b. However, the dimensions of the long side of the end face of each of the side movable plates 7b and 8b are slightly larger than the dimensions of the fixed side walls 7a and 8a in the aforementioned front-rear direction. Specifically, the distance between the dimensions of the long side of each of the side movable plates 7b and 8b and the outer end face of the front end wall 5 and the outer end face of the rear end wall 6 (the end face opposite to the end face opposite to the front end wall 5) in the aforementioned front-rear direction is approximately the same.

[0052] Furthermore, each of the side movable plates 7b and 8b has a through hole (7b1 only shown in the figure). This through hole is formed through two holes in the external threaded portions of the fixed side walls 7a and 8a, and is formed in the thickness direction. Moreover, this through hole is formed in each of the side movable plates 7b and 8b such that, with the external threaded portions inserted into the through hole, the positions of the two side edges of the end faces of each side movable plate 7b and 8b in the long side direction are approximately aligned with the positions of the outer end faces of the front end wall 5 and the rear end wall 6. Based on this, the side movable plates 7b and 8b are installed relative to the fixed side walls 7a and 8a in the following manner: the corresponding external threaded portions are inserted into the through holes, and the nuts threaded into each external threaded portion are tightened, thereby using the outer surfaces of the fixed side walls 7a and 8a and the nuts to clamp the side movable plates 7b and 8b.

[0053] Furthermore, each through hole in the two side movable plates 7b and 8b is formed as an elongated hole with a longer length in the aforementioned short side direction. This allows the side movable plates 7b and 8b to change their mounting position relative to the fixed sidewalls 7a and 8a in the vertical direction. In addition, each through hole is configured such that, when the side movable plates 7b and 8b are mounted to the fixed sidewalls 7a and 8a at their lowest position, the height of the upper edge of the side movable plates 7b and 8b is the same as the height of the upper edge of the fixed sidewalls 7a and 8a. Furthermore, each through hole is configured such that, when the side movable plates 7b and 8b are mounted to the fixed sidewalls 7a and 8a at their highest position, the height of the upper edge of the side movable plates 7b and 8b is lower than the height of the upper edge of the rear end wall 6.

[0054] Based on this, and considering the relationship between the height position of the upper edge of the front end wall 5 (front movable plate 5b), which serves as the overflow side end wall, and the type of slurry S, the installation positions of the two side movable plates 7b and 8b relative to the fixed side walls 7a and 8a are set such that the height position of the upper edge of the side movable plates 7b and 8b is such that the slurry overflows from the upper edge of the front movable plate 5b and also overflows from its own upper edge. Therefore, in this embodiment, the two side movable plates 7b and 8b are installed on the fixed side walls 7a and 8a in the manner described above, such that the overall height position of their upper edges is approximately the same as the height position of the upper edge of the front movable plate 5b.

[0055] Therefore, in the slurry tank 3, the slurry S stored therein overflows not only from the upper edge of the front end wall 5 (front movable plate 5b) but also from the upper edges of the two side walls 7 and 8 (two side movable plates 7b and 8b) as the slurry S is supplied into the tank, as described above. Thus, in this embodiment, the upper edges of the two side walls 7 and 8 (two side movable plates 7b and 8b) are equivalent to the overflow portion of the slurry as permitted in this invention.

[0056] Furthermore, according to the warp sizing device 1 of this embodiment, in the sizing tank 3 where the sizing liquid overflows from the upper edge of the overflow side wall (front side wall 5), foreign matter such as warp fibers floating near the surface of the sizing liquid S in the tank, and air bubbles caused by the rotation of the sizing roller 11, are discharged out of the tank not only through the overflow of the sizing liquid S from the upper edge of the front side wall 5, but also through the overflow of the sizing liquid S from the upper edges of the left and right side walls 7 and 8. Therefore, compared to warp sizing devices where the sizing roller is configured to overflow only from the upper edge of the front side wall, the aforementioned foreign matter is less likely to remain in the area on both sides of the sizing roller 11 in the tank (the area between the sizing roller 11 and the left and right side walls 7 and 8). Therefore, according to this warp sizing device 1, the growth of the aforementioned foreign matter in the sizing tank 3 is suppressed, thereby preventing the deterioration of the state of the sizing liquid S in the tank as much as possible.

[0057] The above describes one embodiment of the warp sizing apparatus of the present invention (hereinafter referred to as the "the above embodiment"). However, the present invention is not limited to the structure described in the above embodiment, and can also be implemented in other embodiments (modifications) below.

[0058] (1) Regarding the sizing tank, in the above embodiment, the front end wall 5, which serves as the overflow side end wall, is composed of a fixed end wall 5a and a front movable plate 5b mounted on the fixed end wall 5a. Furthermore, the two side walls 7 and 8 are also composed of fixed side walls 7a and 8a and lateral movable plates 7b and 8b mounted on the fixed side walls 7a and 8a. However, in this invention, the overflow side end wall and the two side walls used to constitute the sizing tank are not limited to being composed of a fixed wall (fixed end wall 5a, fixed side walls 7a and 8a) and movable plates (front movable plate 5b, lateral movable plates 7b and 8b) mounted on the fixed wall; one or both may be composed solely of a fixed wall.

[0059] For example, if the type of warp yarn being sized and the type of sizing solution used in the sizing device are fixed, the overflow end wall and the two side walls can be constructed by a fixed wall alone, since the conditions remain unchanged. However, from the viewpoint of improving the versatility of the warp sizing device, it is preferable to configure the overflow end wall and one or both of the two side walls to include a movable plate so that the height position of the upper edge can be adjusted.

[0060] Furthermore, in the above embodiment, the front end wall 5 and the two side walls 7 and 8 are mounted on the fixed side walls 7a and 8a with their upper edges at the same height position, consistent with the height position of the front movable plate 5b of the front end wall 5. That is, in the slurry tank, the upper edge of the overflow side end wall is approximately at the same height position as the upper edges of the two side walls. However, in the present invention, the slurry tank is not limited to the upper edge of the overflow side end wall being approximately at the same height position as the upper edges of the two side walls. For example, in the case where the overflow side end wall and the two side walls are configured to include movable plates as in the above embodiment, the movable plates can also be mounted on the fixed wall in such a way that the upper edges of the overflow side end wall and the two side walls are at different height positions. Furthermore, in the case where the overflow side end wall and the two side walls are only composed of fixed walls as described above, the upper edges of the overflow side end wall and the two side walls (two fixed walls) can also be formed to have different height positions.

[0061] Furthermore, in this invention, the overflow side wall is configured at an upper edge height position such that the slurry S overflows from its upper edge. Based on this, the two side walls are configured such that the height position of their upper edges, in relation to the height position of the upper edge of the overflow side wall, is such that the slurry S overflows from its upper edge (overflow portion). However, regarding the height position of the upper edges of the two side walls, it is also considered that if they are too low compared to the height position of the upper edge of the overflow side wall (more than 15 mm lower than the upper edge of the overflow side wall), overflow from the upper edge of the overflow side wall will not occur depending on conditions such as the type of slurry used. Therefore, the two side walls are preferably configured such that even when their upper edge height position is lower than the upper edge height position of the overflow side wall, the difference in height position is less than 15 mm. Furthermore, the two side walls may also be configured such that the height position of their upper edges is slightly higher than the height position of the upper edge of the overflow side wall.

[0062] Furthermore, in the above embodiment, the two sidewalls 7 and 8 are configured such that the upper edges of the two sidewalls 7 and 8 (the two lateral movable plates 7b and 8b) are entirely overflow portions. However, in this invention, it is not limited to the two sidewalls being configured such that at least a portion of their upper edges are overflow portions. Therefore, the two sidewalls can also be configured such that, when viewed in the width direction, the height of the upper edge of a portion of them is lower than the height of the upper edges of the other portions, so that the slurry S overflows only from the upper edge of that portion.

[0063] For example, when viewed in the aforementioned width direction, the two sidewalls can be configured such that their upper edges are stepped or concave, or that their upper edges are inclined in the aforementioned front-rear direction in a manner that decreases in elevation from the supply side end wall toward the overflow side end wall. Furthermore, regarding the latter, in the case where the two sidewalls are composed of a fixed wall and a movable plate as in the above embodiment, the movable plate can also be mounted to the fixed wall with its upper edge forming an angle with respect to the upper edge of the fixed wall.

[0064] Furthermore, in the above embodiment, the two sidewalls 7 and 8 are configured such that a lateral movable plate 7b and 8b are mounted on the fixed sidewalls 7a and 8a. However, in this invention, the sidewalls can also be configured such that multiple plates are combined to form a portion equivalent to the lateral movable plate of the above embodiment mounted on the fixed sidewall. In this case, each plate becomes a lateral movable plate and is independently mounted on the fixed sidewall. Moreover, when the sidewall is configured in this way, the height position of the upper edge can be changed on a per-lateral movable plate basis. Therefore, a portion of the lateral movable plate can be mounted on the fixed sidewall with its upper edge height position lower than that of other lateral movable plates, and this portion can be used as an overflow portion. In addition, when the sidewall is composed of a fixed sidewall and lateral movable plates, the number of lateral movable plates in the two sidewalls can also be different.

[0065] Furthermore, when the sidewall is constructed by including multiple movable side plates, the sidewall is not limited to the presence of a fixed sidewall in which the movable side plates extend throughout the aforementioned front-rear direction. Specifically, multiple movable side plates, whose dimensions on the sides parallel to the aforementioned front-rear direction when installed on the fixed sidewall are smaller than half the dimensions of the fixed sidewall in the aforementioned front-rear direction, can be prepared and the sidewall can be constructed in a manner in which these movable side plates are installed relative to the fixed sidewall at intervals in the aforementioned front-rear direction. Moreover, in this case, the upper edge of the fixed sidewall in the aforementioned front-rear direction, at least the portion where no movable side plates are installed, becomes an overflow portion.

[0066] (2) Regarding the warp sizing device, the warp sizing device 1 of the above embodiment is configured such that a supply section 30 is provided on the rear end wall 6 of the end walls 5 and 6 at the front and rear of the sizing tank 3, supplying sizing liquid S from the rear side. That is, the rear end wall 6 becomes the supply side end wall, and correspondingly, the front end wall 5 becomes the overflow side end wall. However, in the present invention, the warp sizing device may also be configured such that a supply section is provided on the front end wall, supplying sizing liquid S from the front side. Moreover, in this case, the front end wall becomes the supply side end wall, and the rear end wall becomes the overflow side end wall.

[0067] Furthermore, in the warp sizing apparatus 1 of the above embodiment, the apparatus for supplying sizing liquid S to the supply nozzle 24 and the sizing tank 3 (supply section 30) is a common apparatus (sizing liquid supply apparatus 20). However, in the present invention, the warp sizing apparatus may also be configured such that the apparatus for supplying sizing liquid S to the sizing tank (supply section) is provided separately from the apparatus for supplying sizing liquid S to the supply nozzle.

[0068] The warp sizing apparatus, as a premise of the present invention, is not limited to being configured to supply sizing liquid S to the wedge-shaped gap between the sizing roller and the first squeeze roller connected externally to the rear side of the sizing roller. Therefore, the warp sizing apparatus may also be configured without a supply nozzle for supplying sizing liquid S to the aforementioned gap. Moreover, in this case, the warp sizing apparatus may also be configured by omitting the first squeeze roller.

[0069] (3) Regarding the first roller and the second roller, in the above embodiment, the warp sizing device 1 is configured as follows: the sizing roller 11 is immersed in the sizing liquid S in the sizing tank 3, and the first squeeze roller 13 and the second squeeze roller 15 are externally connected to the sizing roller 11 through the path of the warp sheet T. That is, in the warp sizing device 1 of the above embodiment, the sizing roller 11 is the first roller, and the two squeeze rollers 13 and 15 externally connected to the sizing roller 11 are the second rollers.

[0070] However, in this invention, the warp sizing device can also be configured such that the second squeeze roller is immersed in the sizing solution S in the sizing tank. More specifically, the warp sizing device can also be configured such that, with the sizing tank positioned below the second squeeze roller in the aforementioned front-to-back direction, the second squeeze roller is positioned below the sizing roller in a state of being immersed in the sizing solution S within the sizing tank. Moreover, in this case, the second squeeze roller is the first roller, and the sizing roller connected to the second squeeze roller is the second roller.

[0071] Furthermore, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.

Claims

1. A warp sizing apparatus, comprising a sizing tank consisting of a base plate, front and rear end walls, and left and right side walls for storing sizing liquid, a first roller immersed in the sizing liquid in the sizing tank, and a second roller externally connected to the first roller via a path passing through the warp yarns, wherein the warp sizing apparatus is configured such that a supply section for supplying sizing liquid is provided on one side of one of the front and rear end walls in the sizing tank, and the upper edge of the overflow side end wall opposite to the side where the supply section is provided is at a lower height than the upper edge of the supply side end wall, thereby allowing sizing liquid to overflow from the overflow side end wall. The aforementioned warp sizing device is characterized in that, The two aforementioned sidewalls include overflow portions whose height position is determined by the manner in which the slurry overflows from the upper edge of the aforementioned overflow sidewall.

2. The warp sizing device according to claim 1, characterized in that, The two aforementioned sidewalls include movable plates capable of changing their height position, and the aforementioned overflow portion is defined according to the height position of the movable plates.

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