CN114701193B - Glass fiber cloth folding device, glass fiber hose production equipment and production method - Google Patents

Abstract

The invention relates to the technical field of glass fiber hose production, and provides a glass fiber cloth folding device, glass fiber hose production equipment and a production method, wherein the glass fiber cloth folding device comprises a workbench and a glass fiber folding mechanism; the glass fiber folding mechanism comprises a first folding component and a second folding component which are respectively arranged on two sides of the workbench, wherein the first folding component and the second folding component comprise folding rods, and the folding rods are rotatably arranged on the workbench so that the folding rods can swing in the width direction of the workbench. The glass fiber cloth folding device can fold the glass fiber cloth with a longer section for a single time, thereby reducing the labor intensity of operators in the production of dry materials of glass fiber hoses and improving the production efficiency.

Description

Glass fiber cloth folding device, glass fiber hose production equipment and production method

Technical Field

The invention relates to the technical field of glass fiber hose production, in particular to a glass fiber cloth folding device, glass fiber hose production equipment and a glass fiber hose production method.

Background

The ultraviolet curing non-excavation lining repairing technology is that a glass fiber hose is pulled into a pipeline to be repaired to be inflated so as to be clung to the original pipeline, and then numerical curing is carried out through ultraviolet irradiation so as to form the non-excavation lining pipe with higher strength. The technology has the advantages of high construction speed, short construction period, high quality, tight adhesion between the lining and the pipeline, small overflow area loss and the like, and is widely applied to pipeline repair engineering at present.

The lining hose applied to the ultraviolet curing trenchless lining repair technology is a glass fiber hose impregnated with photo-curing resin. The glass fiber hose is provided with an inner film, a fiber resin layer, an outer film and a protective film from inside to outside. In the related art of glass fiber hose production, a dry material hose is manufactured which is sequentially provided with an inner film, a glass fiber cloth, an outer film and a protective film from inside to outside, and resin is poured between the inner film and the outer film of the dry material hose, so that the glass fiber cloth is impregnated with the resin, thereby forming a fiber resin layer.

In the related art of dry hose production, the inner film is a cylindrical film, the glass fiber cloth, the outer film and the protective film are all sheet materials, and a plurality of layers of glass fiber cloth are generally required. During production, the protective film, the outer film, the multi-layer glass fiber cloth and the cylindrical inner film are sequentially paved on the workbench from bottom to top, and then the multi-layer glass fiber cloth, the outer film and the protective film are sequentially coated outside the inner film layer by layer through manpower, so that the production efficiency is low and the labor cost is high.

Disclosure of Invention

The invention provides a glass fiber cloth folding device, glass fiber hose production equipment and a production method, which are used for solving the problems of high labor intensity and low production efficiency in the production of glass fiber hose dry materials in the prior art.

The invention provides a glass fiber cloth folding device, which comprises: a workbench and a glass fiber folding mechanism; the glass fiber folding mechanism comprises a first folding component and a second folding component which are respectively arranged on two sides of the workbench, wherein the first folding component and the second folding component comprise folding rods, and the folding rods are rotatably arranged on the workbench so that the folding rods can swing in the width direction of the workbench.

According to the glass fiber cloth folding device provided by the invention, the workbench is sequentially provided with the first station section and the second station section along the length direction, the first folding component is arranged on the first station section, and the second folding component is arranged on the second station section.

According to the glass fiber cloth folding device provided by the invention, the glass fiber folding mechanism further comprises a first limiting component, and the first limiting component is arranged at the feeding end of the first station section; the first limiting assembly comprises two limiting wheels, wherein the two limiting wheels are respectively and rotatably arranged above the table top of the workbench and are distributed at intervals in the width direction of the workbench.

According to the glass fiber cloth folding device provided by the invention, the rotating center of the folding rod of the first folding component is arranged at one side of the limiting wheel far away from the second station section.

According to the glass fiber cloth folding device provided by the invention, the glass fiber folding mechanism further comprises a second limiting assembly and a first supporting shaft, wherein the second limiting assembly is arranged at the feeding end of the second station section;

the second limiting mechanism and the first limiting assembly are identical in structure, and the first supporting shaft is rotatably arranged above the workbench along the width direction of the workbench and is positioned between the second limiting assembly and the first station section.

According to the glass fiber cloth folding device provided by the invention, the first folding component and the second folding component both comprise the connecting piece and the guide rail, the guide rail is arranged on the workbench and is arranged along the width direction of the workbench, the connecting piece is slidably arranged on the guide rail, and one end of the folding rod is rotatably arranged on the corresponding connecting piece.

According to the glass fiber cloth folding device provided by the invention, the glass fiber folding mechanism is provided with the width limiting assembly close to the discharge end of the workbench; the width limiting assembly comprises two stop bars, the stop bars are arranged along the length direction of the workbench, and the two stop bars are respectively arranged on two sides of the workbench.

The invention also provides glass fiber hose production equipment, which comprises any glass fiber cloth folding device.

The invention also provides a glass fiber hose production method using any one of the glass fiber hose production equipment, which comprises the following steps:

paving an inner film and glass fiber cloth on the workbench; wherein the inner film is positioned on the upper side of the glass fiber cloth, and the glass fiber cloth is provided with a first side part and a second side part which are respectively positioned on two sides of the inner film in the width direction of the inner film;

rotating the folding bar of the first folding assembly to fold the first side portion of the glass cloth to an upper side of the inner film;

the folding bar of the second folding assembly is rotated to fold the second side portion of the glass cloth to the upper side of the inner film and overlap the first side portion.

According to the glass fiber hose production method provided by the invention, the number of layers of the glass fiber cloth is multiple, and the edges of the first side parts of the multiple layers of the glass fiber cloth are sequentially staggered from the lowest layer to the uppermost layer in the direction away from the inner film;

the folding the first side portion of the glass fiber cloth to the upper side of the inner film specifically includes: folding the first side of the plurality of layers of the glass fiber cloth to the upper side of the inner film at the same time;

the folding the second side portion of the glass fiber cloth to the upper side of the inner film and overlapping the first side portion specifically includes: folding the second side portions of the plurality of layers of the glass fiber cloth to the upper side of the inner film at the same time so as to overlap the first side portions of the plurality of layers of the glass fiber cloth in a one-to-one correspondence manner;

the staggered width of two adjacent layers of glass fiber cloth is not smaller than the lap joint width of the glass fiber cloth of the inner layer.

According to the glass fiber cloth folding device, the glass fiber hose production equipment and the production method, the glass fiber folding mechanism is arranged, the glass fiber folding mechanism comprises the first folding assemblies and the second folding assemblies which are respectively arranged at the two sides of the workbench, the glass fiber cloth arranged at the two sides of the inner film can be folded through the swinging of the folding rods of the first folding assemblies and the second folding assemblies, and the longer-section glass fiber cloth can be folded once, so that the labor intensity of operators in the production of dry materials of the glass fiber hose is reduced, and the production efficiency is improved.

Drawings

In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a glass fiber cloth folding device provided by the invention;

FIG. 2 is an enlarged view of a part of the structure of the glass cloth folding device in FIG. 1;

FIG. 3 is a front view of the glass fiber cloth folding device provided by the invention;

FIG. 4 is a schematic view of a glass fiber folding device for folding glass fibers;

FIG. 5 is a schematic flow chart of a method for producing a glass fiber hose according to the present invention;

FIG. 6 is a schematic diagram of the lamination of multiple layers of glass fiber cloth in the glass fiber hose production method provided by the invention;

FIG. 7 is a schematic illustration of the overlap of glass cloth in the method of producing glass hoses according to the present invention;

reference numerals:

1. a protective film; 2. an outer membrane; 3. glass fiber cloth; 31. a first side portion; 32. a second side portion; 4. an inner membrane; 100. a work table; 100a1, a first station segment; 100a2, a second station segment; 11. a conveying mechanism; 12. a glass fiber folding mechanism; 1211. a folding bar; 1211a, a first folding bar; 1211b, a second folding bar; 1212. a connecting piece; 1213. a guide rail; 122. a first limit assembly; 1221. a limiting wheel; 1222. a bracket; 1223. a moving rack; 1224. a slide rail; 123. the second limiting component; 124. a first support shaft; 16. a width limiting assembly; 161. a barrier strip; 302. and presetting ropes.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In describing embodiments of the present invention, it should be noted that the terms "first" and "second" are used for clarity in describing the numbering of the product components and do not represent any substantial distinction unless explicitly stated or defined otherwise. The meaning of "plurality" is two or more. In the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally indicates that the associated object is an "or" relationship.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

The glass fiber cloth folding device, the glass fiber hose production equipment and the production method of the present invention are described below with reference to fig. 1 to 7.

As shown in fig. 1, the glass fiber cloth folding device provided by the embodiment of the invention comprises a workbench 100 and a glass fiber folding mechanism 12. The glass fiber folding mechanism 12 includes a first folding assembly and a second folding assembly respectively installed at both sides of the length direction of the table 100, the first folding assembly and the second folding assembly each include a folding rod 1211, and the folding rod 1211 is rotatably installed at the table 100 such that the folding rod 1211 can swing in the width direction of the table 100.

The longitudinal direction of the table 100 is the same as the longitudinal direction of the inner film 4. The glass cloth 3 and the inner film 4 are stacked on the table 100 from bottom to top as shown in fig. 6. The glass fiber folding mechanism 12 is used for folding the glass fiber cloth 3 positioned at both sides of the inner film 4 to the upper side of the inner film 4.

For clarity of explanation of the glass fiber folding mechanism in the embodiment of the present invention, the folding rod of the first folding assembly is defined as a first folding rod 1211a, and the folding rod of the second folding assembly is defined as a second folding rod 1211b. The first folding bar 1211a and the second folding bar 1211b are positioned above the top of the table 100.

Before folding the glass cloth 3, the glass cloth 3 has a first side 31 and a second side 32 on both sides of the inner film 4, respectively. When folding the glass cloth 3, the first side 31 of the glass cloth 3 may be first placed on the upper side of the first folding bar 1211a, and the first folding bar 1211a may be driven to swing in a direction approaching the center of the table 100, thereby folding the first side 31 of the glass cloth 3 to the upper side of the inner film 4. Then, the second side 32 of the glass cloth 3 is placed on the upper side of the second folding bar 1211b, and the second folding bar 1211b is driven to swing toward the center of the table 100, thereby folding the second side 32 of the glass cloth 3 to the upper side of the inner film 4 to overlap with the first side 31.

Alternatively, the number of the first folding assemblies and the second folding assemblies may be plural, and the plural first folding assemblies or the plural second folding assemblies are distributed along the length direction of the workbench. The number of first and second folding members may be determined according to the length of the single folded glass cloth.

According to the glass fiber cloth folding device provided by the invention, the glass fiber folding mechanism 12 is arranged, the glass fiber folding mechanism 12 comprises the first folding component and the second folding component which are respectively positioned at two sides of the workbench 100, and the glass fiber cloth 3 positioned at two sides of the inner film 4 can be folded through the swinging of the folding rods 1211 of the first folding component and the second folding component, so that the longer-section glass fiber cloth 3 can be folded once, thereby reducing the labor intensity of operators in the production of dry materials of glass fiber hoses and improving the production efficiency.

As shown in fig. 1, in some embodiments of the present invention, the workbench 100 is sequentially provided with a first station segment 100a1 and a second station segment 100a2 along the length direction, wherein a first folding component is disposed on the first station segment 100a1, and a second folding component is disposed on the second station segment 100a2.

In the course of production and use, the first side 31 of the multi-layered glass cloth 3 is folded onto the upper side of the inner film 4 by the first folding bar 1211a at the first station section 100a1. The glass cloth 3 and the inner film 4, which have been folded on one side, are transported to the second station segment 100a2 by the transport mechanism 11. The second side 32 of the multi-layered fiberglass cloth 3 is then folded over the upper side of the inner film 4 and overlapped with the first side 31 by the second folding bar 1211b at the second station segment 100a2. The two side parts of the glass fiber cloth 3 are folded successively through the two station sections, so that the wiring speed can be increased, and the production efficiency can be improved.

Further, the glass fiber folding mechanism 12 further includes a first limiting assembly 122, and the first limiting assembly 122 is disposed at the feeding end of the first station segment 100a1. The first stop assembly 122 includes two stop wheels 1221. The two limiting wheels 1221 are respectively rotatably disposed above the surface of the table 100 and are arranged at intervals in the width direction of the table 100.

Specifically, the first mounting frame spans across the table 100, and two limiting wheels 1221 are suspended from the first mounting frame and have a gap with the table surface of the table 100. During production use, the inner film 4 and the glass cloth 3 pass through the gap to enter the first station segment 100a1. Two limiting wheels 1221 are used for pressing the upper side of the inner film 4, so that the glass fiber cloth 3 and the inner film 4 on the first station section 100a1 are kept flat.

In the process of production and use, the two limiting wheels 1221 are respectively used for being pressed at the edges of the two sides of the inner film 4 to limit the folding position of the glass fiber cloth 3, so that the first side part 31 of the glass fiber cloth 3 can be well attached to the inner film 4. Optionally, the position of each limiting wheel 1221 in the width direction of the workbench 100 relative to the first mounting frame is adjustable, and by adjusting the positions of the two limiting wheels 1221 in the width direction of the workbench 100, the inner films 4 with different dimensions can be adapted.

Specifically, as shown in fig. 2, the first mounting frame includes a first bracket 1222 and two moving frames 1223, the first bracket 1222 is provided with a sliding rail 1224, and the two moving frames 1223 are slidably disposed on the sliding rail 1224 respectively. In use, the slide rail 1224 is secured by bolts. The two limiting wheels 1221 are rotatably mounted on the two moving frames 1223 in a one-to-one correspondence. When the position of the limiting wheel 1221 needs to be adjusted, the bolt is removed, and the position of the moving frame 1223 on the sliding rail 1224 is adjusted through sliding, so that the bolt is locked.

Further, as shown in fig. 1, the glass fiber folding mechanism 12 further includes a second limiting assembly 123 and a first supporting shaft 124. The second limiting assembly 123 is disposed at the feed end of the second station segment 100a2. The second limiting assembly 123 has the same structure as the first limiting assembly 122. The first support shaft 124 is rotatably disposed above the table 100 along the width direction of the table 100 and is located between the second limiting assembly 123 and the first station segment 100a1.

Wherein the first mounting frame of the second limiting assembly 123 is fixed to the workbench 100. In the process of production and use, one limiting wheel 1221 of the second limiting assembly 123 is pressed on the upper side of the first side part 31 of the multi-layer glass fiber cloth 3 folded on the upper side of the inner film 4, and the other limiting wheel 1221 is pressed on the upper side of the inner film 4, so that the glass fiber cloth 3 and the inner film 4 on the second station section 100a2 are kept flat, and the folding position of the second side part 32 of the glass fiber cloth 3 is limited, and the second side part 32 of the glass fiber cloth 3 can be well attached to the inner film 4.

As shown in fig. 4 and 7, a first support shaft 124 is rotatably provided to the table 100 and spans the table 100 for supporting the glass cloth 3 and the inner film 4. Optionally, a second bracket is fixed on the workbench 100, and the first support shaft 124 is rotatably mounted on the second bracket. After the glass cloth 3 and the inner film 4, which are folded at one side, of the first station segment 100a1 pass through the first support shaft 124, the glass cloth passes through the gap between the two limiting wheels 1221 of the second limiting assembly 123 and the table 100, and enters the second station segment 100a2.

Alternatively, as shown in fig. 2, the rotation center of the first folding bar 1211a is disposed at a side of the limit wheel 1221 of the first limit assembly 122 away from the second station segment 100a2, so as to define the swing angle of the first folding bar 1211a by the limit wheel 1221 of the first limit assembly 122, thereby defining the folding position of the first side 31 of the glass cloth 3. The rotation center of the second folding bar 1211b is disposed at a side of the limit wheel 1221 of the second limit assembly 123 remote from the second station segment 100a2, so as to define the swing angle of the second folding bar 1211b by the limit wheel 1221 of the second limit assembly 123, thereby defining the folding position of the second side 32 of the glass cloth 3.

In some embodiments of the present invention, the workbench 100 is provided with a conveying mechanism 11, and the glass fiber cloth 3 and the inner film 4 move towards the second station section 100a2 in the first station section 100a1 under the action of the conveying mechanism 11.

In some embodiments of the invention, as shown in FIG. 2, the first folding assembly and the second folding assembly each include a folding bar 1211, a connector 1212, and a rail 1213. The guide rail 1213 is mounted to the table 100 and is disposed along the width direction of the table 100. The connector 1212 is slidably mounted to a corresponding guide rail 1213, and one end of the folding bar 1211 is rotatably mounted to the connector 1212. The first folding component and the second folding component have the same structure.

Wherein the length direction of the guide rail 1213 coincides with the width direction of the table 100. The folding bar 1211 of each folding assembly is slidably disposed on a corresponding rail 1213 by a connector 1212. In the case where the installation spaces on both sides of the folding bar 1211 are constant, when the folding bar 1211 is swung, the swing angle of the folding bar 1211 can be adjusted by sliding the folding bar 1211 on the guide rail 1213, thereby realizing a larger swing of the folding bar 1211.

In some embodiments of the present invention, the first folding assembly and the second folding assembly each include a connection block, the folding rod 1211 is rotatably connected to the connection block through a first rotation shaft, the connection block is rotatably connected to the connection member through a second rotation shaft, and the first rotation shaft is perpendicular to the second rotation shaft.

Specifically, the first rotating shaft is perpendicular to the table top of the workbench, and the second rotating shaft is parallel to the table top of the workbench. The folding bar 1211 rotates about the first rotation axis to achieve its swinging in the width direction of the table 100; the folding bar 1211 rotates about the second rotation axis to achieve its swinging in the height direction of the table 100. In the process of folding one side of the glass cloth 3 to the upper side of the inner film 4, the folding rod 1211 can be pressed against the multi-layered glass cloth 3 by the self gravity of the folding rod 1211 or by manually pushing down the folding rod 1211, thereby reducing the manual troweling operation.

In some embodiments of the invention, folding bar 1211 has a first section, a transition section, and a second section. The first section and the second section are parallel to the table top of the workbench 100, the height of the second section relative to the workbench is smaller than that of the first section relative to the workbench, the first section and the second section are connected through the transition section, and one end of the first section, far away from the transition section, is rotatably connected with the workbench 100. In the process of folding the glass cloth 3, by pressing the second section of the folding rod 1211 against the glass cloth 3, the contact area between the folding rod 1211 and the glass cloth 3 is increased, which is advantageous for trowelling the glass cloth 3 folded to the upper side of the inner film 4.

In some embodiments of the present invention, as shown in fig. 1, 3 and 7, the glass fiber folding mechanism 12 is provided with a width limiting assembly 16 near the discharge end of the table 100. The width limiting assembly 16 includes two barrier ribs 161, the barrier ribs 161 are disposed along the length direction of the workbench 100, and the two barrier ribs 161 are disposed on two sides of the workbench 100. Optionally, the position of each bar 161 in the width direction of the table 100 is adjustable to accommodate the width limitations of hose production in a variety of gauge sizes.

The length direction of the barrier rib 161 is identical to the length direction of the table 100. The folded glass cloth 3 and the inner film 4 pass through the passage defined by the two barrier ribs 161 by the conveying mechanism 11. Thereby being convenient for operators to judge whether the outer size of the hose after folding the glass fiber cloth 3 meets the requirements, and if not, the former folding operation can be adjusted in time. The provision of the width limiting assembly 16 facilitates more accurate monitoring of the hose width dimension during production.

The embodiment of the invention also provides glass fiber hose production equipment, which comprises the glass fiber cloth folding device in any embodiment. After the folding of the multi-layer glass fiber cloth 3 is completed by the glass fiber cloth folding device, the outer membrane 2 and the protective membrane 1 are sequentially folded by manual operation or by an outer membrane folding mechanism and a protective membrane folding mechanism which have the same structure as the glass fiber folding mechanism 12.

The embodiment of the invention also provides a glass fiber hose production method using the glass fiber hose production equipment according to any embodiment. As shown in fig. 5, the glass fiber hose production method includes:

in step S1, the inner film 4 and the glass cloth 3 are laid on the table 100. Wherein the inner film 4 is positioned on the upper side of the glass fiber cloth 3. The glass cloth 3 has a first side 31 and a second side 32 on both sides of the inner film 4 in the width direction of the inner film 4.

In step S2, the folding rod 1211a of the first folding assembly is rotated to fold the first side 31 of the glass cloth 3 to the upper side of the inner film 4. The folding bar 1211b of the second folding assembly is rotated to fold the second side portion 32 of the glass cloth 3 to the upper side of the inner film 4 and overlap the first side portion 31.

In step S3, the outer film 2 is laid on the table 100, and the outer film 2 is positioned below the multi-layered glass cloth 3. Folding and welding the parts of the outer film 2 on the two sides of the glass fiber cloth 3 to the upper side of the glass fiber cloth 3;

in step S3, the protective film 1 is laid on the table 100, and the protective film 1 is positioned on the lower side of the outer film 2. The portions of the protective film 1 located at both sides of the outer film 2 are folded toward the upper side of the outer film 2 and welded to each other.

Wherein, the workbench 100 is provided with a feeding end and a discharging end along the length direction of the hose. The protective film 1, the outer film 2, the glass cloth 3, and the inner film 4 are laminated from bottom to top along the length direction of the table 100. The table 100 is provided with a conveying mechanism. After the protective film 1, the outer film 2, the glass fiber cloth 3 and the initial section of the inner film 4 are laid on the workbench 100, the protective film can move along the length direction of the workbench 100 under the drive of the conveying mechanism 11.

As shown in fig. 6, the inner film 4 is a cylindrical film, the outer film 2 and the protective film 1 are both sheet-like films, and the glass fiber cloth 3 is a sheet-like material. Alternatively, the inner film 4 is a polyethylene film (Polyethylene film, PE film), or the inner film 4 is a polyamide film (PA film), or the like.

Wherein, the two sides of the inner membrane 4 refer to the left and right sides of the inner membrane 4 in the length direction. The two sides of the glass cloth 3 refer to the left and right sides in the length direction of the glass cloth 3 after being folded. The two sides of the outer film 2 refer to the left and right sides in the length direction of the outer film 2 after it is folded.

Referring to fig. 6 and 7, fig. 6 shows a manner in which the protective film 1, the outer film 2, the glass fiber cloth 3, and the inner film 4 are laminated, and a direction indicated by an arrow in fig. 6 is a width direction of the inner film 4, and a length direction of the inner film 4 coincides with a length direction of the table. Wherein the width of the glass cloth 3 is larger than the perimeter of the inner membrane 4. Optionally, each layer of fiberglass cloth 3 is uniform in width. The number of layers of the glass fiber cloth 3 is at least one.

When the glass fiber cloth 3 is folded using the glass fiber folding apparatus, the first side 31 of the glass fiber cloth 3 is folded by the folding rod 1211a of the first folding unit, and the second side 32 of the glass fiber cloth 3 is folded by the folding rod 1211b of the second folding unit. The folding rod 1211 can fold the longer section of the glass cloth 3 at a time, thereby reducing the labor intensity of operators in the production of the dry material of the glass hose and improving the production efficiency.

After the folding and lapping of the glass fiber cloth 3 in the step S2 are completed, the parts of the outer film 2 positioned at the two sides of the glass fiber cloth 3 are folded and lapped upwards and welded, so that the outer film 2 wraps the inner film 4 and the multi-layer glass fiber cloth 3. And then, the parts of the protective film 1 positioned on the two sides of the outer film 2 are folded upwards and lapped and welded, so that the protective film 1 wraps the inner film 4, the multi-layer glass fiber cloth 3 and the outer film 2. Wherein, can adopt the pad welder to weld outer membrane 2, adopt the hot melt welder to weld protection film 1.

In actual production, when the number of layers of the glass fiber cloth 3 is multiple, the multiple layers of the glass fiber cloth 3 may be folded layer by the glass fiber folding mechanism 12, or the multiple layers of the glass fiber cloth 3 may be folded simultaneously.

In the embodiment of the present invention, the edges of the first side 31 of the multi-layered glass cloth 3 are sequentially staggered from the lowermost layer to the uppermost layer in a direction away from the inner film 4.

The folding of the first side 31 of the glass fiber cloth 3 to the upper side of the inner film 4 in the step S2 specifically includes: the first side 31 of the multi-layered glass cloth 3 is folded simultaneously to the upper side of the inner film 4.

The step S3 of folding the second side 32 of the glass fiber cloth 3 to the upper side of the inner film 4 and overlapping the first side 31 specifically includes: the second side portions 32 of the multi-layered glass cloth 3 are simultaneously folded to the upper side of the inner film 4 and overlapped with the first side portions 31 of the multi-layered glass cloth 3 one by one.

Wherein the staggered width B of two adjacent layers of glass fiber cloth 3 is not smaller than the lap joint width of the inner layer of glass fiber cloth 3.

As shown in fig. 6, the widths of the glass fiber cloths 3 of the respective layers are uniform, and the edges of the first side portions 31 of the glass fiber cloths 3 of the respective layers are sequentially shifted from the lowermost layer to the uppermost layer in a direction away from the inner film 4, that is, the edges of the second side portions 32 of the glass fiber cloths 3 of the respective layers are sequentially shifted from the uppermost layer to the lowermost layer in a direction away from the inner film 4.

In step S2, the first side 31 of the multi-layered glass cloth 3 is folded upward to the upper side of the inner film 4 by the folding bar 1211a of the first folding unit, and then the second side 32 of the multi-layered glass cloth 3 is folded upward to the upper side of the inner film 4 by the folding bar 1211b of the second folding unit and overlapped with the first side 31 of the multi-layered glass cloth 3 one by one. Each layer of glass fiber cloth 3 forms a lap zone on the upper side of the inner film 4.

As shown in fig. 7, since the offset width B of the outer layer glass fiber cloth 3 and the inner layer glass fiber cloth 3 in the adjacent two layers of glass fiber cloth 3 is not smaller than the overlap width of the inner layer glass fiber cloth 3, the overlap areas of the multiple layers of glass fiber cloth 3 are completely offset from each other. And the first side part 31 of the outer layer glass fiber cloth 3 and the second side part 32 of the inner layer glass fiber cloth 3 in the two adjacent layers of glass fiber cloth 3 are positioned on the same layer, so that the whole lap joint thickness of the multi-layer glass fiber cloth 3 is thinner and smoother. And, can realize folding multilayer glass fiber cloth 3 simultaneously, improve the folding efficiency of glass fiber cloth 3, improve hose drier production efficiency.

According to the glass fiber production method provided by the embodiment of the invention, the multi-layer glass fiber cloth 3 is sequentially staggered in the width direction of the inner film 4, so that a plurality of lap areas formed after the multi-layer glass fiber cloth 3 is folded are completely staggered in the width direction of the inner film 4. Thereby the lap joint thickness of the whole glass fiber cloth layer is reduced, the difference of the thicknesses of two sides of the hose is reduced, and the uniformity of the thickness of the hose is improved. And the soaking rate of the resin and the glass fiber cloth 3 in the subsequent wet material production can be quickened, and the soaking effect is improved, so that the hose glue filling production efficiency and the production quality are improved.

After the staggered multi-layer glass fiber cloth 3 is folded, the upper layer glass fiber cloth 3 is arranged above the lower layer glass fiber cloth 3, so that staggered lap joint is realized, the sewing procedure of the glass fiber cloth 3 is reduced or eliminated, and the production efficiency of dry materials is improved. After the glass fiber cloth 3 is sewn, redundant rim charge needs to be cut off, so that material waste is caused. The invention can reduce the waste of materials and can produce the hose with larger pipe diameter by staggered lap joint.

As a specific example of the three-layer glass fiber cloth 3 shown in fig. 5 and 6, the number of layers of the glass fiber cloth 3 is three, and the three-layer glass fiber cloth 3 is sequentially staggered from the uppermost layer to the lowermost layer from left to right. The first side 31 is located on the left side of the inner membrane 4 and the second side 32 is located on the right side of the inner membrane 4. In folding the glass cloth 3, the first side 31 of the three-layer glass cloth 3 is folded simultaneously onto the upper side of the inner film 4, and then the second side 32 of the three-layer glass cloth 3 is folded simultaneously onto the upper side of the inner film 4. The multi-layer glass fiber cloth 3 is respectively a first layer, a second layer and a third layer from inside to outside, the staggered width of the second layer and the first layer is larger than the lap joint width of the first layer, and the staggered width of the third layer and the second layer is larger than the lap joint width of the second layer. So that the overlapping area A1, the overlapping area A2 and the overlapping area A3 of the three-layer glass fiber cloth 3 are sequentially arranged at intervals in the width direction of the inner film 4.

In some embodiments of the present invention, the step S1 further includes: a preset rope 302 is placed in the inner membrane 4, and the preset rope 302 extends in the length direction of the inner membrane 4. When the final product of the glass fiber hose is used for pipeline construction, after the hose is inflated, the hose needs to be cured in the pipeline by a light curing device. The preset string 302 is used to pull the light curing device into the hose.

Optionally, one end of the preset string 302 is fixed to the end of the inner membrane 4. When the inner membrane 4 moves forward under the drive of the conveyor belt, the inner membrane 4 drives the preset rope 302 to move forward synchronously, so that the preset rope 302 is buried in the inner membrane 4 of the hose.

In some embodiments of the present invention, the step S1 further includes: the end of the inner membrane 4 is sealed, and a predetermined amount of gas is filled into the inner membrane 4. And air is filled into the inner membrane 4 to form a support for the inner membrane 4, so that the inner membrane 4, the glass fiber cloth 3 and the outer membrane 2 can be well attached in the subsequent folding process, and the hose manufacturing precision is improved.

In some embodiments of the present invention, the step S1 further includes: the end of the inner membrane 4 is sealed, and a predetermined amount of gas is filled into the inner membrane 4. And air is filled into the inner membrane 4 to form a support for the inner membrane 4, so that the inner membrane 4, the glass fiber cloth 3 and the outer membrane 2 can be well attached in the subsequent folding process, and the hose manufacturing precision is improved.

In some embodiments of the present invention, the width dimension of the inner film 4 is D1, the number of layers of the glass fiber cloth 3 is N, and the width of the multi-layer glass fiber cloth 3 after lap-forming is D2. D1 and D2 satisfy: d1 is more than D2 and is less than or equal to D1+N.6. Measuring the width of the formed glass fiber cloth layer after lapping of the multi-layer glass fiber cloth 3 is finished, and executing the step S3 if the conditions are met; otherwise, the folding lap of the glass cloth 3 is readjusted.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (6)

1. The glass fiber cloth folding device is characterized by comprising a workbench and a glass fiber folding mechanism; the glass fiber folding mechanism comprises a first folding component and a second folding component which are respectively arranged at two sides of the workbench, wherein the first folding component and the second folding component both comprise folding rods which are rotatably arranged on the workbench, so that the folding rods can swing in the width direction of the workbench;

the workbench is sequentially provided with a first station section and a second station section along the length direction, the first folding component is arranged on the first station section, and the second folding component is arranged on the second station section;

the glass fiber folding mechanism further comprises a first limiting component, and the first limiting component is arranged at the feeding end of the first station section; the first limiting assembly comprises two limiting wheels, and the two limiting wheels are respectively and rotatably arranged above the table top of the workbench and are distributed at intervals in the width direction of the workbench;

the rotation center of the folding rod of the first folding assembly is arranged at one side of the limiting wheel far away from the second station section;

the glass fiber folding mechanism further comprises a second limiting assembly and a first supporting shaft, and the second limiting assembly is arranged at the feeding end of the second station section;

the second limiting assembly and the first limiting assembly are identical in structure, and the first supporting shaft is rotatably arranged above the workbench along the width direction of the workbench and is positioned between the second limiting assembly and the first station section.

2. The glass fiber cloth folding device according to claim 1, wherein the first folding assembly and the second folding assembly each comprise a connecting piece and a guide rail, the guide rail is mounted on the workbench and is arranged along the width direction of the workbench, the connecting piece is slidably mounted on the guide rail, and one end of the folding rod is rotatably mounted on the corresponding connecting piece.

3. The glass fiber cloth folding device according to claim 1, wherein the glass fiber folding mechanism is provided with a width limiting assembly close to the discharge end of the workbench; the width limiting assembly comprises two stop bars, the stop bars are arranged along the length direction of the workbench, and the two stop bars are respectively arranged on two sides of the workbench.

4. A glass fiber hose production apparatus comprising the glass fiber cloth folding device according to any one of claims 1 to 3.

5. A glass fiber hose production method using the glass fiber hose production apparatus according to claim 4, comprising:

paving an inner film and glass fiber cloth on the workbench; wherein the inner film is positioned on the upper side of the glass fiber cloth, and the glass fiber cloth is provided with a first side part and a second side part which are respectively positioned on two sides of the inner film in the width direction of the inner film;

rotating the folding bar of the first folding assembly to fold the first side portion of the glass cloth to an upper side of the inner film; rotating the folding bar of the second folding assembly to fold the second side portion of the glass cloth to the upper side of the inner film and overlap the first side portion;

paving an outer film on the workbench, and enabling the outer film to be positioned on the lower side of a plurality of layers of glass fiber cloth; folding and welding the parts of the outer film positioned on two sides of the glass fiber cloth to the upper side of the glass fiber cloth;

paving a protective film on the workbench, and enabling the protective film to be positioned on the lower side of the outer film; and folding and welding the parts of the protective film positioned on the two sides of the outer film to the upper side of the outer film.

6. The method according to claim 5, wherein the number of layers of the glass fiber cloth is plural, and edges of the first side portions of the plural layers of the glass fiber cloth are sequentially staggered from the lowermost layer to the uppermost layer in a direction away from the inner film;

the folding the first side portion of the glass fiber cloth to the upper side of the inner film specifically includes: folding the first side of the plurality of layers of the glass fiber cloth to the upper side of the inner film at the same time;

the folding the second side portion of the glass fiber cloth to the upper side of the inner film and overlapping the first side portion specifically includes: folding the second side parts of the multiple layers of glass fiber cloth to the upper side of the inner film at the same time and overlapping the first side parts of the multiple layers of glass fiber cloth in a one-to-one correspondence manner;

the staggered width of two adjacent layers of glass fiber cloth is not smaller than the lap joint width of the glass fiber cloth of the inner layer.

Images