JPH0736888Y2 - Heat-resistant conveyor belt edge ridge guide mounting structure - Google Patents

Description

[Detailed Description of the Invention] [Industrial application] The present invention relates to a ridge guide mounting structure for the end edge of a heat-resistant conveyor belt, and more specifically, a ridge for preventing belt meandering at the edge of the heat-resistant conveyor belt. The present invention relates to the improvement of the edge structure in which the guide is sewn.

[Prior Art] Conventionally, a heat-resistant conveyor belt has a belt base material treated with a fluororesin and is slippery, and slips or meanders with respect to a belt pulley during transportation. A ridge guide for preventing meandering is attached along the direction. The ridge guide has a cross section perpendicular to the longitudinal direction, for example It is a ridge having a shape and is made of synthetic resin.
The ridge guide is provided with notches in the width direction at predetermined intervals over its entire length, and is inserted along the guide groove on the peripheral surface of the belt pulley. The ridge guide is provided with a sewing groove for sewing on the sewing machine along the entire length of the top surface in the longitudinal direction. The ridge guide is attached to the belt base material by a sewing means in the sewing groove. The conveyor belt to which the ridge guide is attached is hooked with the ridge guide inserted in the guide groove of the belt pulley.

[Problems to be solved by the invention] However, the conventional ridge guide is sewn to the belt base material in the sewing groove on the top surface, but the sewing thread is exposed on the surface side of the belt base material. However, there is an inconvenient problem that the sewing thread is cut during use.

Therefore, the problem to be solved by the present invention is to solve the above-mentioned conventional problems, and to prevent the thread breakage of the sewing thread of the heat-resistant conveyor belt on which the ridge guide is attached, particularly on the surface side. It is to provide a ridge guide attachment structure that prevents the ridge guide.

[Means for Solving the Problems] The present invention for achieving the above-mentioned problems is mainly composed of a heat-resistant belt base material, and a ridge guide is disposed along the entire length along the edge of the back surface of the belt base material. The ridge guide is provided with sewing grooves for sewing machine sewing along the entire length of the top surface in the longitudinal direction, and notches are provided in the width direction at predetermined intervals over the entire length, and the ridge guide has the sewing groove. Endlessly between the two belt pulleys, with the ridge guide inserted in the guide groove at the peripheral edge of both belt pulleys. The present invention relates to improvement of a conveyor belt that is hung and can be conveyed.

In the present invention, the ridge guide is sewn together with the backing strip over the entire length of the ridge guide by interposing one end edge side of the width of the heat-resistant strip-like backing strip between the back guide of the belt base material. And the other end of the width of the contact strip covers the end side of the belt base material and covers the sewing thread on the surface side of the belt base material, and is folded and overlapped on the front surface side of the belt base material and is welded or bonded. ,
It is characterized in that the sewn thread body on the entire circumference of the front surface side of the belt base material is covered with a patch band portion folded over on the front surface side. A fluororesin adhesive is used to bond the belt base material.

[Operation] The sewing thread of the ridge guide on the surface of the conveyor belt, that is, the surface of the belt base material is covered and protected by the patch strip adhered to the surface side. One end of the width of the patch strip is sewn together with the ridge guide, and the other end of the width is welded or bonded so that it cannot be peeled off.

[Embodiment] Next, an embodiment of the present invention will be described with reference to the drawings.

FIG. 2 shows an embodiment of the conveyor belt 1 of this example. The conveyor belt 1 is provided with a ridge guide 11 for preventing meandering on the back side, and is endlessly hung between both belt pulleys 18 and 18 and is driven in a predetermined direction by driving one belt pulley 18. It can be transported. In FIG. 2, reference numeral 21 is a support shaft of the belt pulley 18.

As shown in FIG. 1, the belt base material 2 which becomes the conveyor belt 1 is made heat resistant by coating a glass cloth 3 with a fluororesin 4 such as tetrafluoroethylene resin by baking. On the back surface portion of the back surface of the belt base material 2 on the side of the edge 2A of the predetermined edge portion, along the edge portion and over the entire length of the edge portion, the inner portion of the width of the pad strip 6 is interposed. The thread guide 11 is sewn, and the outer portion of the patch strip 6 passes through the end side 2A of the belt base material 2 so as to cover the thread body 15 sewn on the surface side of the belt base material 2, It is folded on the surface side and fixed to the surface of the belt base material 2 by welding (or adhesion) (first
See figure).

That is, the contact strip 6 is in the form of a strip having a predetermined width capable of covering both sides of the edge 2A of the belt base material 2, and like the belt base material 2, the glass cloth 7 is baked and coated with the fluororesin 8 so as to have heat resistance. Has been done. However, the glass cloth 7 of the contact strip 6
Is thinner than the glass cloth 3 of the belt base material 2, so that the belt base material 2 is thinner than the belt base material 2 (see the patch 6 in FIGS. 1 and 3).

As shown in FIG. 3, the ridge guide 11 is made of a heat-resistant resin such as a fluorine-based resin, and a sewing groove 12 for sewing is provided on the entire length of the top surface in the longitudinal direction. Also,
The projecting guide 11 is provided with wedge-shaped deep cuts 13 in the width direction at predetermined intervals over the entire length thereof, and can be bent sufficiently along a belt groove 20 of the belt pulley 18 described later. The belt base material 2 to which the ridge guide 11 is attached is formed in an endless shape having a predetermined length.

Then, as shown in FIG. 3, one end edge side (inner edge side) of the width of the contact strip 6 is provided on a predetermined end side 2A of the back surface of the belt base material 2.
Are overlapped with each other, and the other end side of the belt base member 2 is projected outward from the end side 2A of the belt base material 2. Then, a ridge guide 11 with the sewing groove 12 facing upward is arranged on the one end edge side of the overlapping strips 12. Next, the heat-resistant thread 15 is sewn along the sewing groove 12 of the ridge guide 11 to sew the ridge guide 11 and the contact strip 6 to the edge of the belt base material 2. In this sewing, the back surface of the belt base material 2 is in the state shown in FIGS. 4 and 6, and the front surface of the belt base material 2 is in the state shown in FIG. That is, the other end (outer side) of the sewn pad band 6 is in a state of protruding outward from the end side 2A of the belt base material 2. Therefore, as shown by the arrow P in FIG. 6, the outer portion of the patch strip 6 protruding outward is bent toward the front side along the belt base material 2, and the thread 15 exposed on the surface is covered and folded. The portion of the patch strip 6 that has been welded (or adhered) and folded by heating means is fixed. Similarly, the ridge guide 11 and the contact strip 6 are folded over the entire length of the end side 2A on the predetermined side of the belt substrate 2 to form the end structure shown in FIG.

On the other hand, both belt pulleys 1 that hang the conveyor belt 1
The edges of the peripheral surfaces 19 and 19 of the peripheral surfaces 19 and 18 are guide grooves 20 and 20.
It is said that the conveyor belt 1 is a double belt pulley 1
When the conveyor belt 1 is hung on the rails 8, 18, the ridge guides 11 of the conveyor belt 1 are inserted into the guide grooves 20, 20.

Since the conveyor belt 1 of the present example has a heat-resistant structure, it is used for transporting the transported object by placing it in a high temperature atmosphere, or for transporting the transported object that is hot at room temperature. Thread body 15 for sewing ridge guide 11 is sewn in groove 12
Since the thread 15 of the sewing machine that is sewn inside and exposed to the belt base material 2 is covered with the pad band 6, the thread 15 does not break when the conveyor belt 1 is used.

The ridge guide 11 of the above embodiment has a cross section perpendicular to the longitudinal direction. Although the notch 13 has a shape and has a wedge shape, the shape is not limited to this. For example, a cross-section perpendicular to the longitudinal direction like a protrusion guide 31 shown in FIG. The cross-sectional shape of the ridge guide 11 and the shape of the cut 13 can be appropriately changed such that the cut 33 has a shape.

[Effects of the Invention] In the present invention, since the sewing thread of the ridge guide exposed on the surface of the conveyor belt (belt base material) is covered with the patch,
When the conveyor belt is used, the sewing thread on the surface side of the conveyor belt does not come into contact with the object to be conveyed on the conveyor belt and the sewing thread on the surface side cannot be cut.

In the present invention, the patch strip is sewn together with the ridge guide on one end side of the width, and is welded or adhered on the other end side of the width so that it does not peel off. Further, the patch and the sewing thread are heat resistant, which is preferable for the heat resistant conveyor belt.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, FIG. 1 is an enlarged cross-sectional view of a main part of a conveyor belt in a width direction, FIG. 2 is an embodiment view of the conveyor belt, and FIG. 3 is a formation of a ridge guide mounting structure. FIG. 4 is a plan view of the ridge guide sewing process, FIG. 5 is a rear view of FIG. 4, and FIG. 6 is a cross-sectional view of essential parts of FIG.
FIG. 7 shows another example of the ridge guide. 1 ... Conveyor belt 2 ... Belt base material 2A ... Edge 3,7 ... Glass cloth 4, 8 ... Fluorine resin 6 ... Patch strip 11 ... Ridge guide 12 ... Sewing groove 13 ... Cut 15 ... Thread 18 ... Belt pulley 20 ... Guide groove

Claims (1)

[Scope of utility model registration request] 1. A heat-resistant belt base material as a main body, along which a ridge guide is arranged along the edge of the back surface and over the entire length. The ridge guide is for sewing on the entire length of the top surface in the longitudinal direction. Of the belt groove and the notch in the width direction over the entire length thereof at a predetermined interval, and the ridge guide is sewn to the belt base material along the sewing groove with a heat resistant thread. In the conveyor belt, wherein the ridge guide is endlessly hung between both belt pulleys and can be conveyed in a state where the ridge guide is inserted in the guide groove of the peripheral edge of both belt pulleys, The guide is sewn together with the backing strip over the entire length of the ridge guide, with one end of the width of the heat-resistant strip-like backing strip being interposed between the guide and the back surface of the belt base, and the width of the backing strip The other end of the belt covers the edge of the belt substrate. In addition, the sewing thread on the front surface side of the belt base material is folded and overlapped on the front surface side of the belt base material, welded or adhered, and the sewing thread body on the entire circumference of the front surface side of the belt base material is folded on the front surface side. A ridge guide mounting structure characterized by being covered with a contact strip.