JPH10237789A - Joint-connecting tool for drier canvas in paper machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve operation efficiency of an operation for connecting joints when connecting a drier canvas for papermaking used in a paper machine when inserting and putting the drier canvas for the papermaking in the paper machine and connecting the drier canvas to have no terminal. SOLUTION: Both terminals of a drier canvas 10 for papermaking are provisorily connected with a fastener 15 attached to the both terminal parts through auxiliary cloths 14. Thereafter, a joint-connecting tool 20 having supporting surface 20a for supporting the both terminal parts in a raised state is inserted into the space 17 between the auxiliary cloths 14 and the drier canvas 10 to mutually engage joint loops 11, and a core wire is inserted into the common holes of the joint loops 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention aims at facilitating the insertion of a bonding core wire when a papermaking dryer canvas used in a paper machine is hung in a paper machine and joined endlessly. The present invention relates to a tool for joining joints of a dryer canvas.

[0002]

2. Description of the Related Art Dryer canvas joints include those in which a main body warp is folded to form a loop, and those in which a spiral wire is attached to an end portion. The joining core wire is inserted into the hole to make it endless.

[0003] Recently, a joint with a fastener has been adopted as a joining aid because a ring-shaped portion at the end has become smaller and it becomes difficult to insert a core wire.

For example, Japanese Unexamined Patent Publication (Kokai) No. 61-167097 discloses a dryer canvas in which fasteners are attached to both ends of a dryer canvas and fasteners are attached to one end of a guide cloth to facilitate joining. In addition,
Japanese Unexamined Patent Publication No. 1-153399 and Japanese Unexamined Utility Model Publication No. 3-128696 also disclose a dryer canvas having a joining auxiliary cloth with a fastener.

Although some effects are recognized depending on the place where the dryer canvas is used, insertion of a core wire becomes difficult in the current situation where the annular portion at the end is increasingly miniaturized with the recent increase in speed of paper machines. There are cases. Also, the joining work of the dryer canvas in the paper machine is usually performed under conditions where the lighting is dark and work is difficult,
Along with the miniaturization of the annular portion at the end, a long time is required for the joining operation, and a reduction in the time required for the joining operation is strongly demanded.

To cope with this problem, for example,
No. -136000 and JP-A-63-503554 have been proposed.

The method described in Japanese Utility Model Application Laid-Open No. 63-136000 discloses a hook (6) and a plate (7) as shown in FIGS.
After temporarily fixing the two band joining aids (3) each having an edge to the both ends of the end-shaped band (1) in a palm-shape manner, the core wire (5) is attached to the joining loop (2). ) Is inserted.

On the other hand, in the method described in Japanese Patent Publication No. 63-503554, as shown in FIGS. 8 and 9, an alignment centering strip material (3) having a U-shaped element (5) at one edge is used. A locking strip (7) fastened near the end (1,2) of the product and engaged with the U-shaped element (5) holds the end (1,2) of the product to the strip (7). After lifting up in the area of (1), the joining yarn (6) is mounted in a fixed position to join the ends of the band-shaped product.

[0009]

[Problems to be solved by the invention]
The methods disclosed in Japanese Patent Publication No. 000 and Japanese Patent Publication No. 63-503554 have the following problems. (1) Temporarily fix the joining tool (joining aid 3 in Japanese Utility Model Application Laid-Open No. 63-136000, aligned alignment strip 3 in Japanese Patent Publication No. 63-503554) before starting the joining work to both ends of the dryer canvas. Because of the necessity, extra work is required for the temporary fixing work and the removal thereof. This work is considered to be unexpectedly troublesome. (2) Due to the structure of the joining tool, the overall length in the width direction of the dryer canvas is required, so that the size is increased and handling is inconvenient. Since the width of the canvas is different for each type, it is necessary to manufacture and prepare many types of large-sized joining tools corresponding to the type of the canvas, and the production cost and storage cost thereof increase.

[0010] As described above, the joining operation of the dryer canvas in the paper machine is often performed in a dark environment with insufficient lighting.

Accordingly, an object of the present invention is to solve these problems.

[0012]

A joint joining tool according to the present invention is used for joining both ends of a papermaking dryer canvas, to which an auxiliary cloth with a fastener is attached, using a joining core wire. And a support surface that is inserted into the space between the zipper-assisted cloth and the dryer canvas, and supports both ends of the dryer canvas in a raised state after the insertion.

[0013] Even if the fastener is correctly mounted, the gap between the two joint loops is widened due to the effect of the tension acting on the joint loop (due to the own weight of the dryer canvas) and the effect of the working condition, resulting in insertion resistance of the joint core wire. Therefore, by holding both ends of the dryer canvas in a raised state, the influence of tension and the like is eliminated, and the insertion of the joint core wire can be facilitated.

It is preferable that the joint joining tool be movable in the width direction of the dryer canvas.

It is desirable that the joint joining tool has a length in the canvas width direction smaller than a width dimension of the dryer canvas.

Further, an illuminating device for irradiating the joint of the dryer canvas may be provided.

[0017]

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

As shown in FIG. 3, a joint loop (11) is formed at one end of the dryer canvas (10) by folding a loop forming warp (12) extending from the end of the canvas. This joint loop (11) is alternately arranged in the width direction of the canvas with a mating joint loop (not shown) formed at the other end of the dryer canvas (10) and meshes with each other. Core wire (1
3) is inserted and the dryer canvas (10) is joined endlessly.

As shown in FIGS. 1 and 2, an auxiliary cloth (14) is attached to one side of the dryer canvas (10), and a fastener (15) is attached to the tip of the auxiliary cloth (14). Have been. The auxiliary cloth (14) is attached to the dryer canvas (10) by sewing. The auxiliary cloth (14) is attached using a single-ring stitch sewing machine or the like so that it can be easily removed. When the slider of the fastener (15) is closed, both auxiliary cloths (14) are integrated, and both ends of the dryer canvas (10) are connected to both joint loops (1).
It is designed to swell in a mountain shape with 1) facing each other.

A joint joining tool (20) is inserted into a space (17) having a substantially triangular cross section defined by both ends of the dryer canvas (10) and the auxiliary cloth (14). The joint joining tool (20) has a cross-sectional shape that can be smoothly inserted into the space (17). Specifically, it is formed in a trapezoidal cross section, for example, having a support surface (20a) that is inclined on both sides so that both ends of the dryer canvas can be supported in a raised state after being inserted into the space (17). In addition, this joint joining tool (2
0) The length L (length in the canvas width direction) is shorter than the width of the dryer canvas (10).

Upper surface (flat surface 20b) of the joint joining tool (20)
Is provided with a knob (21) for an operator to grip the tool (20) when sliding the tool (20) in the width direction of the dryer canvas (10). This knob (21) should be flat (20
It is attached to the end on the side preceding the moving direction in b). In addition, the length of the knob (21) is set to a length protruding above the joint (A) of the dryer canvas (10). When the knob (21) is positioned above the joint (A), the guide (21) is guided at both ends of the dryer canvas (10) when the joining tool (20) is slid in the canvas width direction. Therefore, there is an advantage that the joining tool (20) can be always held at the center position immediately below the joint loop (11) during the sliding.

The joint joining tool (20) is provided with an illumination device (23) for irradiating the joint (A) of the dryer canvas (10). This lighting device (23) utilizes a space (24) inside a joint joining tool (20) as shown in FIG. 4, for example, and arranges a luminous body (25) in the space (24). It is configured by disposing a light-transmitting body (26) such as an acrylic plate above 25).

The procedure for joining the dryer canvas (10) on a paper machine using the joint joining tool (20) will be described below.

First, the both ends of the dryer canvas (10) are brought closer to each other, and the auxiliary cloths (14) attached in advance are pulled in the approaching direction, and the slider of the fastener (15) is closed.
Join both ends of the dryer canvas (10). Next, the joint joining tool (20) is inserted into the space (17) formed by both ends of the dryer canvas (10) and the auxiliary cloth (14) from the widthwise end of the dryer canvas (10). The both ends of the dryer canvas (10) are held in a raised state on the supporting surface (20a). At this time, the knob (21) protrudes above the joint (A).

Next, the canvas (10) rather than the knob (21)
The joint loops (11) at the end portions in the width direction (the front side in the drawing in FIG. 1) are alternately and accurately engaged and held, and the joint core wire (13) is inserted into a common hole of the engaged joint loop (11). I do. At this time, the support surface (20
Since both ends of the dryer canvas (10) are held in a raised state in (a), the joining core wire (13) can be easily inserted. During the work, the light from the lighting device (23) is irradiated to the joint, so that the work can be performed in a bright environment, and the work of engaging the joint loop (11) and inserting the joint core wire (13) is performed. And can be easily performed.

After the insertion of the joining core wire (13) in the length direction of the joint joining tool (20) is completed, the knob (21) is grasped and the joint joining tool (20) is moved in the width direction of the dryer canvas (10). After the pitch is moved and the new joint loops (11) are meshed with each other by the movement, the joining core wire (13) is inserted into the meshed portion. In this way, the predetermined pitch slide of the joint joining tool (20) and the insertion work of the joining core wire (13) are alternately performed, and the joining core wire (13) is inserted through the entire length of the dryer canvas (10) in the width direction.

Usually, when inserting the joint core wire (13),
To facilitate insertion into the joint loop (11), connect a small-diameter lead wire made of stainless steel or the like to the end of the joining core wire (13), and first insert the leading wire into the joint loop (11) from the end. I have. Therefore, if the joint location is not flat, when inserting the joint core wire (13),
The leading ends of the leading wires may not be inserted into the joint loop (11) alternately in order, and it may be troublesome. If the joint joining tool (20) according to the present invention is used, both ends of the dryer canvas (10) can be held in the same plane even if there is a step, so that the joining core wire (13) can be easily inserted.

The above-mentioned joint joining tool (20) is not attached to a dryer canvas (10) or the like, but is simply a space (1).
Since it is inserted in 7), the joining operation can be easily performed without increasing the number of operation steps.

Dryer canvas (1) of the joining tool (20)
The length L in the width direction of (0) may be the same as the dimension in the width direction of the dryer canvas (10). However, in view of the fact that the width dimension of the dryer canvas (10) differs depending on the application, etc., the length L is made smaller than the width dimension of the dryer canvas as described above, and moves in the width direction of the dryer canvas (10). It should be possible. In this case, since one joint joining tool (20) can be shared for various dimensions in the width direction of the dryer canvas (10), there is an advantage that the manufacturing cost and storage space of the tool can be reduced. If the length L of the joint joining tool (20) is too long, handling is inconvenient.
About 200 to 1000 mm, more preferably L = 30
It is good to be about 0 to 800 mm. Other dimensions can be variously selected, but in consideration of cost and usability in handling, in FIG. 1, W = 50 to 200 mm, H = 10 in FIG.
-50 mm, h = 0-10 mm, and k = 10-40 mm.

[0030]

Next, a specific embodiment of the present invention will be described with reference to the drawings. (Embodiment 1) FIG. 4 shows an embodiment in which a lighting device (23) for illuminating a joint loop (11) from below is provided substantially at the center in the width direction of a joint joining tool (20). The luminous body (25) of the lighting device (23) uses an incandescent lamp, which is
7) is lit. A translucent body (26) made of a milky white translucent acrylic plate (thickness t = 2 mm) is arranged in the upper opening of the joint joining tool (20). In addition, a reflector (28) is arranged in a space below the light emitter (25), and the light of the light emitter (25) is reflected by the reflector (28) so that the illumination light efficiently irradiates the joint loop (11). I am trying to be.

The joint joining tool (20) is made of wood. The dimensions of each part (see FIG. 1) are as follows: W = 140
mm, L = 500 mm (length in the width direction of the dryer canvas (10)), H = 20 mm, h = 6.5 mm, and k = 22 mm. (Embodiment 2) FIGS. 5A and 5B show a joint loop (11).
In order to further improve the illuminance in the vicinity, in addition to the lower illumination device (23a: having the same structure as the illumination device of FIG. 4) for irradiating from below the joint loop (11), the joint loop (11)
This is an embodiment in which an upper illumination device (23b) for irradiating the light from above is provided. FIG. 5A is a front view from the canvas width direction, and FIG. 5B is a side view thereof. Top lighting device (23
b) is a luminous element arranged on the upper part of the column (29) erected on the upper surface (20b) of the joint joining tool (20), and installed so that the illuminated area overlaps with the illuminated area of the lower illumination device (23a). (2
5) and a battery housing section (30) housing a battery for supplying power to the luminous body (25). Battery compartment (3
The battery of (0) is shared with the light emitter (25) of the lower lighting device (23a).

In the above embodiment, the case where an incandescent lamp is used as the luminous body (25) is exemplified. However, the present invention is not limited to this. For example, a high-luminance type bulb such as a halogen or a crampton, a fluorescent lamp, a light emitting diode, An electroluminescent element or the like used for a liquid crystal backlight can be used.

As the material for the joint joining tool (20), besides the above-mentioned wood, metal castings such as aluminum, plastics, and the like can be used, but plastics are most preferable in consideration of handleability due to weight reduction.

The illuminating devices (23a) and (23b) may be installed up and down as shown in FIG. 5, but depending on the condition of the joint of the joint, the lower illuminating device (23a) or the upper illuminating device (23b) Either one of them may be used.

[0035]

According to the joint joining tool of the present invention,
Since it has the support surface which supports the both ends of the dryer canvas in a raised state, the work of meshing the joint loops and inserting the joining core wire into the joint loops can be performed accurately and easily. In addition, since it is not attached to a dryer canvas or the like, but simply inserted into a space formed by the dryer canvas and the auxiliary cloth, the joining operation can be easily performed without increasing the number of operation steps.

According to the present invention, the work of inserting the joint core wire into the joint loop can be performed accurately and simply by preparing a joint joining tool having a simple structure.

If the length in the width direction of the dryer canvas is made smaller than the width dimension of the dryer canvas,
Since one joint joining tool can be shared for dryer canvases of various widths, the manufacturing cost and storage space of the tool can be reduced.

If an illumination device for irradiating the joint of the dryer canvas is provided, the workability can be improved even in a dark environment.

[Brief description of the drawings]

FIG. 1 is a perspective view of a joint joining tool according to the present invention.

FIG. 2 is a cross-sectional view of the joining tool.

FIG. 3 is an enlarged sectional view of an end of a dryer canvas.

FIG. 4 is a sectional view showing the first embodiment of the present invention.

FIG. 5 is a sectional view showing a second embodiment of the present invention.

FIG. 6 is a perspective view (a) and a cross-sectional view (b, c) showing a conventional joining tool.

FIG. 7 is a cross-sectional view showing a joining procedure according to the conventional example.

FIG. 8 is a perspective view (a to f) and a front view (g) showing a conventional joining tool.

FIG. 9 is a cross-sectional view (a to c, e to g) showing a conventional joining tool.
Fig.) And a perspective view (Fig. D).

[Explanation of symbols]

 10 Dryer canvas 11 Joint loop 13 Core wire for joining 14 Auxiliary cloth 17 Space 20 Joint joining tool 20a Support surface 23 Lighting device A Joint

Claims (4)

[Claims] 1. A space between a zippered auxiliary cloth and a dryer canvas, which is used when joining both ends of a papermaking dryer canvas to which a zippered auxiliary cloth is attached, using a bonding core wire. And a support surface for supporting both ends of the dryer canvas in a raised state after the insertion. 2. The joint joining tool for a papermaking dryer canvas according to claim 1, which is movable in the width direction of the dryer canvas. 3. The joint joining tool for a papermaking dryer canvas according to claim 1, wherein the length in the canvas width direction is smaller than the width dimension of the dryer canvas. 4. The joint joining tool for a paper-making dryer canvas according to claim 1, further comprising an illuminating device for irradiating a joint portion of the dryer canvas.