JP2001279592A - Lead cover-fitting structure for hanging and introducing paper-making structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To constitute the attachment structure for the lead cover installed between the drafting means for drawing the felt loop into the prescribed running route in the paper-making machine and the edge of the felt so that it may be rapidly detachable from the felt. SOLUTION: The lead cover 1 and the felt loop 2 are linked to each other via a linking tool 21 that is detachable from the felt. The linking tool is constituted so that the linking part 22 of the felt side and the linking part 23 of the lead cover side are linked by inserting the wire 26 through the common hole formed by matching the mutual center holes of the individual loops 24, 25 and they are separated from each other by pulling out the wire 26 from the common hole. Particularly, the loop is constituted in parallel with the side edges of the tape-like parts 28, 29 that can be overlapped to the felt. In addition, the tape-like material constituting the linking part on the felt side is sewed via the fitting sheet 30 to the felt.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure of a lead cover interposed between a traction means for drawing a felt into a predetermined traveling path in a paper machine and an end of the felt.

[0002]

2. Description of the Related Art In order to improve the workability of inserting a felt into a paper machine, a so-called seam, in which a felt having a length is drawn into a traveling path of a felt, that is, a felt run, and both ends are joined to each other to be endless. Felt is known. At the joining of both ends, joining loops formed by folding back the warp constituting the base fabric at the ends are alternately engaged so that the center holes thereof are aligned, and the core wire is passed through the common hole formed thereby. It is done by that.

[0003] In the felt pull-in operation, when the felt before replacement (hereinafter referred to as a front sheet) remains in the paper machine, as shown in FIG. And a new felt (hereinafter, referred to as a counter) 42 is connected to one end thereof, and the counter 42 is pulled out from the other end while the front 42 is pulled out from a plurality of rolls in a paper machine. The vehicle is drawn into the travel route specified by 43. On the other hand, when the front sheet is not present in the paper machine, a plurality of ropes are passed through the traveling path, the rope is connected to the end of the sheet sheet, and the rope is pulled to pull the sheet sheet into the paper machine.

[0004] When connecting the pulling means such as a front end or a rope to the hitting means, a connecting method is used which has a connecting strength which does not come off during drawing into the paper machine and which does not hurt the hitting means. There is a need to. At the end of the felt, there is provided a temporary joining device for temporarily fixing the both ends of the felt and passing the core wire through the joining loop, and this temporary joining device does not damage the roll of the paper machine. It is necessary to prevent the work from being interrupted by being caught. Therefore, conventionally, a lead cover made of a sheet material covering an end portion of the felt is interposed between the traction means, and the lead cover and the felt are sewn and connected with a relatively soft thread that does not damage the felt. I was trying to do it.

[0005]

In this case, in order to remove the lead cover from the felt, it is necessary to pull out a thread for suturing the lead cover and the felt. Chain stitching is employed so that the thread can be easily pulled out. Has been
In the case of wide felts, the thread sometimes breaks on the way and it may take time to work. This thread breakage can be solved by adopting a high-strength thread, but since a thread is not restricted from being damaged by sewing, it is not always possible to select a thread that is advantageous in terms of strength. However, the only way to prevent thread breakage is to carefully perform the extraction operation, which is an obstacle to improving the efficiency of the felt insertion operation.

[0006] The present invention has been devised to solve such problems of the prior art, and its main objects are as follows.
The mounting structure of the lead cover for inserting the felt for papermaking,
An object of the present invention is to provide a structure that allows quick removal from a felt.

[0007]

In order to achieve the above object, according to the present invention, a felt is inserted between a traction means for drawing a felt into a predetermined traveling path in a paper machine and an end of the felt. In the mounting structure of the lead cover, the lead cover and the felt are connected to each other via a detachable connecting tool with respect to the felt, and the connecting tool is
The connecting member on the felt side and the connecting member on the lead cover side are connected to each other by aligning the center holes of the loops provided in a plurality in the width direction with each other and inserting a wire through the common hole, By withdrawing the wires, the wires were separated from each other and the lead cover could be removed from the felt.

[0008] According to this, after the drawing operation to the paper machine is completed, the lead cover can be removed from the felt simply by pulling out the wire from the loop, the work of removing the lead cover is simplified, and the next work can be quickly performed. You can move on. Especially, since the time from unpacking to the start of the joining process of both ends of the felt can be shortened, avoid the inconvenience that the nylon joining loop is softened by moisture and the meshing work of the loop becomes complicated. Can be. In this case, it is desirable to provide the loop row in the width direction so as to cover substantially the entire width of the felt so that the traction force acting on the felt is not concentrated on a part.

In addition, when the felt and the connecting member are sewn with a sewing machine, a sewing machine having a size corresponding to the length from the sewn portion of the felt to the connecting member to the leading edge of the felt may be used. As in the case of sewing directly to felt, there is no need to prepare a sewing machine with a large foot size that matches the length from the seam to the leading edge of the lead cover, which complicates the manufacturing equipment and increases the manufacturing cost. Can be avoided.

In this case, the connecting member on the felt side is finally removed from the felt, but this may be appropriately performed in a later step, for example, during the work in the joining step of passing the core wire through the joining loops at both ends of the felt. good. At this time, if the connecting member on the felt side and the felt are sewn by chain stitching,
Removal work becomes easy.

In particular, it is preferable that the loop is arranged in parallel with the side edge of the tape-shaped member that can be superimposed on the felt. According to this, since the connecting tool is not bulky, the felt can be smoothly drawn in. be able to. In addition,
The loop on the lead cover side may be configured by providing a tape-like member similar to that on the felt side, but unlike the felt side, it is not necessary to remove the connecting member from the lead cover after the retraction work, so it is not necessarily the same. It is not necessary to adopt the configuration of

In addition, the tape-like member constituting the felt-side connecting member is preferably sewn to the felt via a mounting sheet. According to this, by using a material having a small load for moving the needle at the time of suturing, particularly when piercing the sewing needle, the sewing operation of the connecting tool to the felt regardless of the configuration of the tape-shaped member is performed. And the damage of the felt at the time of suturing can be avoided.

In the tape-like member, the work of inserting the wire into the loop can be facilitated by increasing the diameter of the loop or adopting a thread having a high rigidity to form the loop. On the other hand, the load on the sewing needle at the time of suturing increases due to an increase in the thickness of the tape-shaped member, and in a configuration in which the felt is directly sewn with a thick cloth, the suturing operation becomes troublesome and damages the felt. On the other hand, when the attachment sheet is sewn to the felt as described above, the above-described inconvenience can be avoided. The tape-shaped member and the attachment sheet may be connected by an appropriate method, and the work is easier even in the case of suturing than in the direct suturing of the tape-shaped member and felt.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 shows a lead cover to which the present invention is applied. The lead cover 1 is interposed between a pulling means such as a rope passed through the paper machine or a traveling path in the paper machine and an end of the felt 2 to guide the felt 2 to a traveling path in the paper machine. And a machine-side surface (upper surface in the figure) 2a of the felt 2 which is in contact with a roll or the like of a paper machine in the felt 2 and a wet paper side ( (The lower surface in the figure) 2b.

A cylindrical portion 9 is formed in the distal end connecting portion 4 outside the hole 8 through which the connecting cord 3 passes, and a rod 10 having a required rigidity is inserted into the cylindrical portion 9 to connect the connecting cord 3 to the connecting portion. The traction force acting on the lead cover 1 via the lead is evenly distributed in the width direction.

The covering portions 5 and 6 protect the joining loop 12 formed at the end of the felt 2 and also prevent the temporary joining device 13 provided on the felt 2 from being damaged. It functions to protect parts such as rolls on the paper machine from being damaged by contact with the paper machine. Temporary joint 1
Reference numeral 3 denotes a structure in which both ends of the felt 2 are temporarily fixed to facilitate the joining operation. In this example, a slide fastener type fastener tape 14 is sewn to the felt 2 via a connecting cloth 15. I have.

The felt 2 is further covered with a waterproof sheet 17 on the outside of the covering parts 5 and 6, so that when the felt 2 is drawn into the paper machine, the felt 2 becomes wet with moisture remaining inside the felt. The inconvenience of complicating subsequent work can be avoided. The water-blocking sheet 17 is set to an appropriate length longer than the covering portions 5 and 6 so that a required water-blocking effect is obtained according to the structure of the paper machine, the dimensions of the felt 2, and the like.

In this case, the cover part 5 on the machine side and the leading end connecting part 4 are formed from a single sheet material, and the sheet material forming the covering part 6 on the wet paper web side is attached to the leading end connecting part 4 side. Although they are integrated by stitching along the width direction, various modes are possible, such as a configuration in which one sheet material is folded in two by the leading end connecting portion 4. In addition, covering parts 5 and 6
The left and right side edges are sewn together to form a bag. Similarly, also in the water shielding sheet 17, the front material 18 and the backing material 19 constituting the same are sewn along the width direction on the side of the distal end connecting portion 4 and the left and right side edges are sewn to each other. It has become.

The lead cover 1 and the felt 2 are mutually connected to the felt 2 via a detachable connecting member 21. As shown in FIG.
A loop 2 in which a plurality of connecting members 22 on the felt 2 side and a plurality of connecting members 23 on the lead cover 1 side are provided in parallel in the width direction.
4 and 25 are aligned with each other by inserting the wire 26 into the common hole, and are connected to each other by extracting the wire 26.
The lead cover 1 can be detached. Note that, here, the connecting tool 21 is provided on the machine-side surface (upper surface in the figure) 2a of the felt 2 together with the temporary connecting tool 13, so that the sewing operation on the felt 2 can be performed efficiently.

The loops 24 and 25 on the felt 2 side and the lead cover 1 side are respectively formed on the felt 2 and the cover 5 of the lead cover 1 by tape-like members 28 and 29 which can be polymerized.
Side by side. Here, both tape-like members 28 and 29 on the felt 2 side and the lead cover 1 side have the same configuration. The tape-shaped member 28 constituting the connecting member 22 on the felt 2 side is sewn to the felt 2 via the mounting sheet 30. The tape-shaped member 29 constituting the connecting member 23 on the lead cover 1 side is directly sewn to the cover 5 of the lead cover 1. In addition, the said connection tool 2
Each member constituting 1 extends over substantially the entire width of the felt 2.

When the felt 2 is drawn into the paper machine, the tape-like members 28 and 29 and the mounting sheet 30 are overlapped with the felt 2 and the cover 5 of the lead cover 1, and are smoothly drawn into the paper machine.

The mounting sheet 30 is made of a material that has a small load when the needle is sewn, particularly when the needle is sewn, and is sewn to one surface of the tape-like member 28 in a state of being overlapped with a predetermined width. The attachment sheet 30 and the felt 2 are sewn by chain stitching, and the attachment sheet 30 can be removed from the felt 2 by pulling out the suture thread 27. Note that a mode in which the mounting sheet is formed of two sheet materials and the tape-like member 28 is sandwiched between the tape-like members is also possible. Examples of the material of the mounting sheet 30 include a felt material and a thin woven fabric made of multifilament. The attachment sheet 30 is set to an appropriate length in consideration of workability at the time of insertion and extraction of the wire 26 and the like.

As shown in FIG. 3, for example, the tape-shaped member 28 is a thread (monofilament) 3 forming a loop 24.
1 and a thread (multifilament) 32 that is entangled with the woven fabric. The sewn portion of the attachment sheet 30 and the cover 5 of the lead cover 1 is woven in a single weave to reduce the thickness of the woven fabric. Easy suturing. Further, a large number of loops 24 are provided at predetermined intervals in the longitudinal direction of the tape-shaped member 28, and a high coupling strength is obtained by alternately engaging with the counterpart loop, and at the same time, the insertion of the wire 26 is performed. It's getting easier.

In this case, the loops 24 and the bent portions 33 folded without forming the loops are alternately arranged, and the interval between the adjacent loops is set to be sufficiently larger than the diameter of the yarn 31. It is easy to engage with. In addition, the tape-shaped member 28 can take various forms such as a configuration in which a thread forming a loop is entangled with a thread at a side edge portion of a woven fabric while drawing a spiral. The same applies to the tape-like member 29 on the lead cover 1 side.

The wire 26 is removed from the water-impervious sheet 17
And the open edge of the lead cover 1 on the side opposite to the distal end connecting portion 4 may be turned. As described above, when the bag-shaped water-impervious sheet 17 and the lead cover 1 are long, To make the extraction work easier,
A hole is formed in the water-impervious sheet 17 and the lead cover 1 in advance, or a mark is provided at the position where the hole is to be made, for example.
It is preferable that the wire 26 can be pulled out without turning over the lead 7 and the lead cover 1.

[0027]

As described above, according to the present invention, the lead cover can be removed from the felt by a simple operation such as pulling out a wire, so that the next operation can be promptly performed and the hooking operation can be performed efficiently. A great effect can be obtained in proceeding.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a lead cover to which the present invention is applied.

FIG. 2 is a sectional view of the coupler shown in FIG. 1;

FIG. 3 is an enlarged cross-sectional view showing an example of a tape-shaped member constituting the connecting tool shown in FIG. 1;

FIG. 4 is a conceptual diagram showing a procedure for drawing felt into a paper machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lead cover 2 Felt 3 Connecting string 4 Tip connecting part 5.6 Covering part 12 Joining loop 13 Temporary joining tool 17 Waterproof sheet 21 Connecting tool 22/23 Connecting member 24/25 Loop 26 Wire 28/29 Tape member 30 Mounting Sheet

Claims (3)

[Claims] 1. A lead cover mounting structure interposed between traction means for drawing a felt into a predetermined traveling path in a paper machine and an end of the felt, wherein the lead cover and the felt are connected to each other. Are connected to each other via a detachable connecting member with respect to the felt, and the connecting member includes a plurality of the connecting members on the felt side and the connecting members on the lead cover side each arranged in the width direction. The center holes of the loops are aligned with each other, and the wires are connected to each other by inserting a wire through the common hole. The wires are separated from each other by removing the wires, so that the lead cover can be removed from the felt. Mounting structure. 2. The mounting structure according to claim 1, wherein the loop is arranged in parallel with a side edge of a tape-shaped member that can be superimposed on the felt. 3. The mounting structure according to claim 2, wherein the tape-shaped member constituting the felt-side connecting member is sewn to the felt via a mounting sheet.