CN114701193A - 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 assembly and a second folding assembly which are respectively arranged on two sides of the workbench, the first folding assembly and the second folding assembly comprise folding rods, the folding rods can be rotatably arranged on the workbench, and the folding rods can swing in the width direction of the workbench. This fine cloth folding device of glass can the single folding longer section of glass fiber cloth to alleviate operating personnel's in the production of glass fiber hose drier intensity of labour, improve 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 production method.

Background

The ultraviolet light curing trenchless lining repairing technology is a trenchless technology that a glass fiber hose is pulled into a pipeline to be repaired, inflated and expanded to be tightly attached to the original pipeline, and then numerical value curing is carried out through ultraviolet light irradiation to form a lining pipe with higher strength. The technology has the advantages of high construction speed, short construction period, high quality, close fit between the lining and the pipeline, small loss of flow area and the like, and is widely applied to pipeline repair engineering at present.

The lining hose applied to the ultraviolet light curing trenchless lining repairing technology is a glass fiber hose impregnated with light 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 technology of glass fiber hose production, a dry hose is firstly manufactured, wherein the dry hose is sequentially provided with an inner film, glass fiber cloth, an outer film and a protective film from inside to outside, and then resin is poured between the inner film and the outer film of the dry hose, so that the glass fiber cloth is impregnated with the resin, and a fiber resin layer is formed.

In the related art of dry hose production, the inner film is a cylindrical film, and the glass fiber cloth, the outer film and the protective film are all sheet-like materials, and multiple layers of glass fiber cloth are usually required. During production, the protective film, the outer film, the multilayer glass fiber cloth and the cylindrical inner film are sequentially laid on the workbench from bottom to top, and then the multilayer glass fiber cloth, the outer film and the protective film are sequentially coated on the outer side of the inner film layer by layer through manual work, 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 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 assembly and a second folding assembly which are respectively arranged on two sides of the workbench, the first folding assembly and the second folding assembly comprise folding rods, the folding rods can be rotatably arranged on the workbench, and 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 of the workbench, the first folding component is arranged at the first station section, and the second folding component is arranged at 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, and the two limiting wheels are rotatably arranged above the table board of the workbench respectively and are arranged in the width direction of the workbench at intervals.

According to the glass fiber cloth folding device provided by the invention, the rotating center of the folding rod of the first folding assembly is arranged on 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 component and a first supporting shaft, and the second limiting component is arranged at the feeding end of the second station section;

the second limiting mechanism is the same as the first limiting assembly in structure, and the first supporting shaft is arranged above the workbench in a rotatable mode in the width direction of the workbench and located between the second limiting assembly and the first station section.

According to the glass fiber cloth folding device provided by the invention, each of the first folding assembly and the second folding assembly comprises a connecting piece and a guide rail, the guide rails are arranged on the workbench and arranged along the width direction of the workbench, the connecting pieces are slidably arranged on the guide rails, and one end of each 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 component 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 one of the glass fiber cloth folding devices.

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

laying an inner membrane and glass fiber cloth on the workbench; the inner membrane 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 membrane in the width direction of the inner membrane;

rotating the folding bar of the first folding assembly to fold the first side of the fiberglass cloth to an upper side of the inner membrane;

rotating the folding rod of the second folding assembly to fold the second side of the fiberglass cloth to the upper side of the inner membrane and in lap joint with the first side.

According to the production method of the glass fiber hose 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;

folding the first side of the glass fiber cloth to the upper side of the inner membrane, specifically including: simultaneously folding the first side portions of the plurality of layers of the glass fiber cloth to the upper side of the inner film;

folding the second side of glass fiber cloth to the upside of inner membrance and with first side overlap joint specifically includes: folding the second side parts of the plurality of layers of glass fiber cloth to the upper side of the inner film at the same time so as to be in one-to-one corresponding lap joint with the first side parts of the plurality of layers of glass fiber cloth;

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

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

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a fiberglass cloth folding device provided by the invention;

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

fig. 3 is a front view of a glass cloth folding apparatus provided by the present invention;

fig. 4 is a schematic view of the glass fiber folding device for folding glass fiber cloth provided by the invention;

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 view showing the lamination of a plurality of layers of glass fiber cloth in the method for producing a glass fiber hose according to the present invention;

FIG. 7 is a schematic view showing the overlapping of glass fiber cloth in the production method of glass fiber hose 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 section; 100a2, a second station section; 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 member; 1213. a guide rail; 122. a first limit component; 1221. a limiting wheel; 1222. a support; 1223. a movable frame; 1224. a slide rail; 123. a second limiting component; 124. a first support shaft; 16. a width limiting component; 161. blocking strips; 302. and (4) presetting a rope.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be noted that the terms "first" and "second" are used for the sake of clarity in describing the numbering of the components of the product and do not represent any substantial difference, unless explicitly stated or limited otherwise. "plurality" means two or more. In the specification and claims, "and/or" means at least one of connected objects, a character "/" generally means that the former and latter related objects are in an "or" relationship.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

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

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

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

To clearly illustrate the glass fiber folding mechanism in the embodiment of the present invention, the folding rod of the first folding assembly is defined as the first folding rod 1211a, and the folding rod of the second folding assembly is defined as the second folding rod 1211 b. The first and second folding bars 1211a and 1211b are positioned above the table 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, which are located on both sides of the inner membrane 4, respectively. When folding the glass cloth 3, the first side portion 31 of the glass cloth 3 may be placed on the upper side of the first folding rod 1211a, and the first folding rod 1211a may be driven to swing in a direction approaching the center of the table 100, thereby folding the first side portion 31 of the glass cloth 3 to the upper side of the inner film 4. Then, the second side portion 32 of the glass cloth 3 is placed on the upper side of the second folding rod 1211b, and the second folding rod 1211b is driven to swing in a direction toward the center of the table 100, thereby folding the second side portion 32 of the glass cloth 3 to the upper side of the inner film 4 to overlap the first side portion 31.

Optionally, the number of the first folding assemblies and the second folding assemblies can be multiple, and a plurality of the first folding assemblies or a plurality of the second folding assemblies are distributed along the length direction of the workbench. The number of first folding assemblies and second folding assemblies may be determined based on the length of the single folded fiberglass cloth.

According to the fiberglass cloth folding device provided by the invention, the fiberglass folding mechanism 12 is arranged, the fiberglass folding mechanism 12 comprises the first folding component and the second folding component which are respectively positioned at the two sides of the workbench 100, the fiberglass cloth 3 positioned at the two sides of the inner membrane 4 can be folded through the swinging of the folding rods 1211 of the first folding component and the second folding component, and the longer section of the fiberglass cloth 3 can be folded at a single time, so that the labor intensity of operators in the production of the fiberglass hose dry material is reduced, and the production efficiency is improved.

As shown in fig. 1, in some embodiments of the present invention, the work table 100 is sequentially provided with a first station section 100a1 and a second station section 100a2 along a length direction thereof, the first folding component is disposed on the first station section 100a1, and the second folding component is disposed on the second station section 100a 2.

During production and use, the first side portion 31 of the multi-layer glass fiber cloth 3 is firstly folded to the upper side of the inner membrane 4 by the first folding rod 1211a at the first station section 100a 1. The glass cloth 3 and the inner film 4, one side of which is folded, are conveyed to the second station 100a2 by the conveying mechanism 11. Then, the second side portion 32 of the multi-layer glass cloth 3 is folded to the upper side of the inner film 4 by the second folding bar 1211b at the second station 100a2 and overlaps the first side portion 31. Two lateral parts of the glass fiber cloth 3 are successively folded through the two station sections, so that the wiring speed can be increased, and the production efficiency is improved.

Further, the glass fiber folding mechanism 12 further includes a first limiting component 122, and the first limiting component 122 is disposed at the feeding end of the first station section 100a 1. The first spacing assembly 122 includes two spacing wheels 1221. The two limiting wheels 1221 are respectively rotatably disposed above the table top of the workbench 100 and are spaced apart from each other in the width direction of the workbench 100.

Specifically, the first mounting bracket is disposed on the workbench 100 in a crossing manner, and two limiting wheels 1221 are suspended on the first mounting bracket and have a gap with the top surface of the workbench 100. During production and use, the inner membrane 4 and the glass fiber cloth 3 pass through the gap to enter the first station section 100a 1. The two limiting wheels 1221 are used for pressing the upper side of the inner film 4, so that the glass fiber cloth 3 on the first station section 100a1 and the inner film 4 are kept flat.

In the production and use process, the two limiting wheels 1221 are respectively used for being pressed at the edges of 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 relative to the first mounting frame in the width direction of the workbench 100 is adjustable, and the inner films 4 with different sizes and specifications can be adapted by adjusting the positions of the two limiting wheels 1221 in the width direction of the workbench 100.

Specifically, as shown in fig. 2, the first mounting rack includes a first rack 1222 and two moving racks 1223, the first rack 1222 is provided with a sliding rail 1224, and the two moving racks 1223 are slidably disposed on the sliding rail 1224, respectively. When in use, the sliding rail 1224 is fixed by bolts. The two limiting wheels 1221 are rotatably mounted on the two movable frames 1223 in a one-to-one correspondence manner. When the position of the limiting wheel 1221 needs to be adjusted, the bolt is detached, and the bolt is locked after the position of the movable frame 1223 on the sliding rail 1224 is adjusted in a sliding mode.

Further, as shown in fig. 1, the glass fiber folding mechanism 12 further includes a second limiting component 123 and a first supporting shaft 124. The second position limiting assembly 123 is disposed at the feed end of the second station section 100a 2. The second stop assembly 123 is identical in structure to the first stop assembly 122. The first supporting shaft 124 is rotatably disposed above the worktable 100 in the width direction of the worktable 100 and is located between the second stopper assembly 123 and the first station section 100a 1.

Wherein, the first mounting bracket of the second limiting component 123 is fixed on the workbench 100. In the production and use process, one limiting wheel 1221 of the second limiting assembly 123 is pressed on the upper side of the first side part 31 of the multilayer glass fiber cloth 3 folded to 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, 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 straddles the table 100 for supporting the glass cloth 3 and the inner film 4. Optionally, a second bracket is fixed to the table 100, and the first support shaft 124 is rotatably mounted on the second bracket. After the first station section 100a1 completes one-side folding of the glass cloth 3 and the inner film 4, the glass cloth and the inner film pass over the first support shaft 124, and then pass through the gap between the two limiting wheels 1221 of the second limiting member 123 and the table 100, and enter the second station section 100a 2.

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

In some embodiments of the present invention, the conveying mechanism 11 is disposed on the workbench 100, and under the action of the conveying mechanism 11, the glass fiber cloth 3 and the inner film 4 move from the first station section 100a1 to the second station section 100a 2.

In some embodiments of the present 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 guide track 1213. The guide rails 1213 are mounted to the table 100 and arranged in the width direction of the table 100. The connecting members 1212 are slidably mounted to the corresponding guide rails 1213, and one end of the folding bar 1211 is rotatably mounted to the connecting members 1212. The first folding component and the second folding component have the same structure.

The longitudinal direction of the guide rail 1213 coincides with the width direction of the table 100. The folding rod 1211 of each folding assembly is slidably disposed on the corresponding guide rail 1213 through the connecting member 1212. In the case where the installation space is constant on both sides of the folding bar 1211, the folding bar 1211 can be swung more largely by adjusting the swing angle of the folding bar 1211 by sliding the folding bar 1211 on the guide rails 1213 when swinging the folding bar 1211.

In some embodiments of the present invention, each of the first folding assembly and the second folding assembly includes a connection block, the folding rod 1211 is rotatably connected to the connection block by a first rotation shaft, the connection block is rotatably connected to the connection block by a second rotation shaft, and the first rotation shaft and the second rotation shaft are perpendicular to each other.

Specifically, the first rotating shaft is perpendicular to the table surface of the workbench, and the second rotating shaft is parallel to the table surface of the workbench. The folding bar 1211 rotates about the first rotation axis, effecting its swinging in the width direction of the table 100; the folding bar 1211 rotates about the second rotation axis, and is implemented to swing 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 membrane 4, the folding rod 1211 can be pressed on the multi-layer glass cloth 3 by the self-gravity of the folding rod 1211 or by manually pushing the folding rod 1211 downwards, so that the manual floating operation is reduced.

In some embodiments of the present invention, folding bar 1211 has a first section, a transition section, and a second section. First section and second section all are parallel with the mesa of workstation 100, and the relative workstation of second section highly is less than the relative workstation of first section height, and first section and second section pass through the changeover portion and link to each other, and the one end and the workstation 100 rotatable coupling of changeover portion are kept away from to first section. In the process of folding the glass cloth 3, the second section of the folding rod 1211 is pressed on the glass cloth 3, so that the contact area between the folding rod 1211 and the glass cloth 3 is increased, and the glass cloth 3 folded on the upper side of the inner membrane 4 is favorably smoothed.

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 blocking strips 161, the blocking strips 161 are disposed along the length direction of the worktable 100, and the two blocking strips 161 are respectively disposed on two sides of the worktable 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 for a variety of gauge sizes.

The longitudinal direction of the barrier 161 is the same as the longitudinal direction of the table 100. Under the action of the conveying mechanism 11, the folded glass fiber cloth 3 and the inner film 4 pass through a channel defined by the two barrier strips 161. Therefore, an operator can conveniently judge whether the outer size of the hose after the glass fiber cloth 3 is folded meets the requirement, and the folding operation before can be adjusted in time if the outer size of the hose does not meet the requirement. By providing the width limiting assembly 16, a more accurate monitoring of the width dimension of the hose during production is facilitated.

The embodiment of the invention also provides glass fiber hose production equipment which comprises the glass fiber cloth folding device in any one of the embodiments. After the folding of multilayer glass fiber cloth 3 is accomplished through above-mentioned fine cloth folding device of glass, adventitia 2 and protective film 1 are carried out in proper order and are folded through manual or adventitia folding mechanism and protective film folding mechanism through 12 looks isostructures with fine folding mechanism of glass again.

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

in step S1, the inner film 4 and the glass cloth 3 are laid on the table 100. Wherein, the inner membrane 4 is positioned at the upper side of the glass fiber cloth 3. The glass cloth 3 has a first side portion 31 and a second side portion 32 located 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 member is rotated to fold the first side portion 31 of the glass cloth 3 to the upper side of the inner membrane 4. The folding rod 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 membrane 4 and overlap the first side portion 31.

In step S3, the outer film 2 is laid on the table 100 such that the outer film 2 is positioned under the multilayer glass cloth 3. Folding the parts of the outer film 2 positioned at the two sides of the glass fiber cloth 3 towards the upper side of the glass fiber cloth 3 and welding the parts with each other;

in step S3, the pellicle 1 is laid on the table 100 such that the pellicle 1 is positioned under the outer film 2. The portions of the shielding film 1 on 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 pellicle 1, the outer film 2, the glass cloth 3, and the inner film 4 are stacked from bottom to top in the longitudinal direction of the table 100. The table 100 is provided with a conveying mechanism. After the initial sections of the protective film 1, the outer film 2, the glass fiber cloth 3 and the inner film 4 are laid on the workbench 100, the protective film can be driven by the conveying mechanism 11 to move along the length direction of the workbench 100.

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

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

Referring to fig. 6 and 7, fig. 6 shows a lamination arrangement of the pellicle 1, the outer film 2, the glass fiber cloth 3, and the inner film 4, wherein the direction indicated by the arrow in fig. 6 is the width direction of the inner film 4, and the length direction of the inner film 4 is the same as the length direction of the worktable. Wherein the width of the glass fiber cloth 3 is larger than the perimeter of the inner film 4. Optionally, the width of each layer of glass fiber cloth 3 is uniform. The number of layers of the glass fiber cloth 3 is at least one.

When the glass fiber cloth 3 is folded by the glass fiber folding apparatus, the first side portion 31 of the glass fiber cloth 3 is folded by the folding rod 1211a of the first folding unit, and the second side portion 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 glass fiber cloth 3 with a longer section at a time, so that the labor intensity of operators in the production of the glass fiber hose dry materials is reduced, and the production efficiency is improved.

After the folding and overlapping of the glass fiber cloth 3 in the step S2 is completed, the parts of the outer film 2 on both sides of the glass fiber cloth 3 are folded and overlapped upwards and then welded, so that the outer film 2 wraps the inner film 4 and the multiple layers of glass fiber cloth 3. And then, the parts of the protective film 1 positioned at the two sides of the outer film 2 are folded upwards and lapped, and then welding is carried out, so that the protective film 1 wraps the inner film 4, the multiple layers of glass fiber cloth 3 and the outer film 2. Wherein, can adopt the sticking bag welding machine to weld adventitia 2, adopt the hot melt welding machine to weld protecting film 1.

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

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

The folding of the first side portion 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 portion 31 of the multi-layered glass cloth 3 is simultaneously folded to the upper side of the inner film 4.

The folding of the second side portion 32 of the glass fiber cloth 3 to the upper side of the inner film 4 and the overlapping with the first side portion 31 in the step S3 specifically includes: the second side portion 32 of the multi-layered glass cloth 3 is simultaneously folded to the upper side of the inner film 4 and lapped with the first side portion 31 of the multi-layered glass cloth 3 in a one-to-one correspondence.

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

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

In step S2, the first side portion 31 of the multi-layered glass cloth 3 is folded upward to the upper side of the inner film 4 by the folding rod 1211a of the first folding assembly, and then the second side portion 32 of the multi-layered glass cloth 3 is folded upward to the upper side of the inner film 4 by the folding rod 1211b of the second folding assembly, and overlapped with the first side portion 31 of the multi-layered glass cloth 3 in one-to-one correspondence. Each layer of glass fiber cloth 3 forms a lap joint area 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 two adjacent layers of glass fiber cloth 3 is not less than the overlapping width B of the inner layer glass fiber cloth 3, the overlapping regions 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 at the same layer, so that the integral overlapping thickness of the multiple layers of glass fiber cloth 3 is thinner and smoother. Moreover, the multilayer glass fiber cloth 3 can be folded simultaneously, the folding efficiency of the glass fiber cloth 3 is improved, and the production efficiency of the hose dry materials is improved.

According to the glass fiber production method provided by the embodiment of the invention, the plurality of layers of glass fiber cloth 3 are sequentially arranged in a staggered manner in the width direction of the inner film 4, so that a plurality of overlapping areas formed after the plurality of layers of glass fiber cloth 3 are folded are completely staggered with each other in the width direction of the inner film 4. Therefore, the overlapping thickness of the whole glass fiber cloth layer is reduced, the difference of the thicknesses of the two sides of the hose is reduced, and the uniformity of the thickness of the hose is improved. And the soaking speed of the resin and the glass fiber cloth 3 in the subsequent wet material production can be accelerated, and the soaking effect is improved, so that the hose glue filling production efficiency and the production quality are improved.

After the multilayer glass fiber cloth 3 that staggers each other is folded, upper glass fiber cloth 3 sets up in lower glass fiber cloth 3 top, has realized the staggered floor overlap joint, reduces or abandons the process of sewing up to glass fiber cloth 3, has improved drier production efficiency. 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 hoses with larger pipe diameters by staggered overlapping.

In the specific example having three layers of the glass cloth 3 as shown in fig. 5 and 6, the glass cloth 3 has three layers, and the three layers of the glass cloth 3 are arranged in a staggered manner from the uppermost layer to the lowermost layer and from the left to the 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. When the glass fiber cloth 3 is folded, the first side part 31 of the three-layer glass fiber cloth 3 is simultaneously folded to the upper side of the inner film 4, and then the second side part 32 of the three-layer glass fiber cloth 3 is simultaneously folded to the upper side of the inner film 4. The multilayer 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 cloth 3 are arranged at intervals in sequence in the width direction of the inner film 4.

In some embodiments of the present invention, the step S1 further includes: within the inner membrane 4 is placed a pre-tether 302, the pre-tether 302 extending along the length of the inner membrane 4. When the final finished product of the glass fiber hose is used for pipeline construction, after the hose is inflated and expanded, the hose needs to be cured in a pipeline through a light curing device. The pre-tether 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 driving of the conveyor belt, the inner membrane 4 drives the preset rope 302 to move forward synchronously, so that the preset rope 302 is embedded 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 set amount of gas is filled into the inner membrane 4. The inner film 4 is inflated with gas to form support for the inner film 4, so that the inner film 4, the glass fiber cloth 3 and the outer film 2 can be well attached in the subsequent folding process, and the manufacturing precision of the hose 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 set amount of gas is filled into the inner membrane 4. The inner film 4 is inflated with gas to form support for the inner film 4, so that the inner film 4, the glass fiber cloth 3 and the outer film 2 can be well attached in the subsequent folding process, and the manufacturing precision of the hose is improved.

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

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present 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 solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. A 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 assembly and a second folding assembly which are respectively arranged on two sides of the workbench, the first folding assembly and the second folding assembly comprise folding rods, the folding rods can be rotatably arranged on the workbench, and the folding rods can swing in the width direction of the workbench.

2. A glass cloth folding apparatus according to claim 1, wherein the table is provided with a first station section and a second station section in sequence along a length direction thereof, the first folding assembly is provided at the first station section, and the second folding assembly is provided at the second station section.

3. The fiberglass cloth folding device according to claim 2, wherein the fiberglass cloth 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 rotatably arranged above the table board of the workbench respectively and are arranged in the width direction of the workbench at intervals.

4. The fiberglass cloth folding device of claim 3, wherein the rotation center of the folding rod of the first folding assembly is disposed on a side of the limiting wheel away from the second station section.

5. The fiberglass cloth folding device according to claim 3, wherein the fiberglass cloth folding mechanism further comprises a second limiting component and a first supporting shaft, the second limiting component is arranged at the feeding end of the second station section;

the second limiting mechanism is the same as the first limiting assembly in structure, and the first supporting shaft is arranged above the workbench in a rotatable mode in the width direction of the workbench and located between the second limiting assembly and the first station section.

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

7. The fiberglass cloth folding device of claim 1, wherein the fiberglass cloth folding mechanism is provided with a width limiting component near the discharge end of the worktable; 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.

8. A glass fiber hose production facility comprising the glass fiber cloth folding apparatus according to any one of claims 1 to 7.

9. A glass fiber hose production method using the glass fiber hose production apparatus according to claim 8, comprising:

laying an inner membrane and glass fiber cloth on the workbench; the inner membrane 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 membrane in the width direction of the inner membrane;

rotating the folding bar of the first folding assembly to fold the first side of the fiberglass cloth to an upper side of the inner membrane; rotating the folding rod of the second folding assembly to fold the second side portion of the fiberglass cloth to the upper side of the inner membrane and overlap the first side portion;

laying an outer film on the workbench, and enabling the outer film to be positioned at the lower side of the plurality of layers of glass fiber cloth; folding the parts of the outer membrane positioned at the two sides of the glass fiber cloth towards the upper side of the glass fiber cloth and welding the parts of the outer membrane and 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 the parts of the protective film positioned at the two sides of the outer film to the upper side of the outer film and welding the parts to each other.

10. The method for producing a glass fiber hose according to claim 9, wherein the number of the layers of the glass fiber cloth is a plurality of layers, and edges of the first side portions of the plurality of layers of the glass fiber cloth are sequentially staggered in a direction away from the inner film from the lowest layer to the uppermost layer;

folding the first side of the glass fiber cloth to the upper side of the inner membrane, specifically including: simultaneously folding the first side portions of the plurality of layers of the glass fiber cloth to the upper side of the inner film;

folding the second side of glass fiber cloth to the upside of inner membrance and with first side overlap joint specifically includes: folding the second side parts of the plurality of layers of glass fiber cloth to the upper side of the inner film at the same time and lapping the second side parts of the plurality of layers of glass fiber cloth with the first side parts of the plurality of layers of glass fiber cloth in a one-to-one correspondence manner;

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

Images