A continuous glass fiber reinforced pipe connection structure, flanging die and flanging method

Abstract

The present invention relates to the technical field of pipe connection, and discloses a continuous glass fiber reinforced tube connection structure, a flanging mold and a flanging method. The continuous glass fiber reinforced tube connection structure comprises a glass fiber reinforced tube body, one end of the glass fiber reinforced tube body is provided with a first connecting piece; the first connecting piece comprises a first flanging and a first reinforcing piece; the first flanging can cooperate with the first flanging of another glass fiber reinforced tube to achieve the connection between the glass fiber reinforced tubes; the first reinforcing piece is sleeved on the glass fiber reinforced tube body; the end of the first reinforcing piece close to the first flanging is connected to the first flanging. The continuous glass fiber reinforced tube connection structure, the flanging mold and the flanging method provided by the present solution can effectively achieve the strength and rigidity of the glass fiber reinforced tube connection without damaging the strength of the glass fiber.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe connection, and in particular to a continuous glass fiber reinforced pipe connection structure, a flanging die and a flanging method. Background Art

[0002] Continuous fiber reinforced pipe is a high-pressure plastic composite pipe with thermoplastic plastic as the matrix material for the inner and outer layers and continuous fiber composite material as the reinforcement belt in the middle layer. It is usually used as buried water supply pipe or gas pipe. Its ring stiffness, strength and other properties are far superior to ordinary plastic pipes.

[0003] At present, continuous glass fiber reinforced pipes are usually connected by metal crimping. The connection of continuous glass fiber reinforced pipes is achieved through metal crimping parts. The metal crimping method has the disadvantages of inconvenient connection, easy damage to the pipe connection by axial force, poor end reinforcement effect and resistance to internal pressure, and the joints using metal crimping parts are not resistant to acid, alkali and corrosion.

[0004] In view of this, this application is hereby filed. Summary of the invention

[0005] In view of the related problems existing in the prior art, the present invention provides a continuous glass fiber reinforced tube connection structure, a flanging mold and a flanging method. The continuous glass fiber reinforced tube connection structure, the flanging mold and the flanging method provided in this scheme can effectively achieve the strength and rigidity of the glass fiber reinforced tube connection without damaging the strength of the glass fiber.

[0006] The embodiment of the present invention is achieved through the following technical solutions:

[0007] First aspect

[0008] An embodiment of the present invention provides a continuous glass fiber reinforced tube connection structure, including a glass fiber reinforced tube body, one end of which is provided with a first connecting piece; the first connecting piece includes a first flange and a first reinforcement piece; the first flange can cooperate with the first flange of another glass fiber reinforced tube to achieve the connection between the glass fiber reinforced tubes; the first reinforcement piece is sleeved on the glass fiber reinforced tube body; the end of the first reinforcement piece close to the first flange is connected to the first flange.

[0009] In the present solution, the continuous glass fiber reinforced tube connection structure includes a first connector arranged at one end of the glass fiber reinforced tube body, the first connector is a flange structure, and the connection between the glass fiber reinforced tubes can be achieved through the first connectors of two different glass fiber reinforced tubes, and a first reinforcement piece is also provided on the first connector, the first reinforcement piece is arranged on the side of the first flange close to the other end of the glass fiber reinforced tube body, the first reinforcement piece is sleeved on the glass fiber reinforced tube body, and one end is connected to the first flange to achieve the fixation of the first reinforcement piece. By setting the first reinforcement piece, the strength of the first flange is effectively improved, and the stability of the connection between the two glass fiber reinforced tubes is further guaranteed. Compared with the prior art, the glass fiber reinforced tube connection structure provided by the present solution is provided with a flange structure, and the connection between the glass fiber reinforced tubes is achieved by forming a structure similar to a plastic flange through the flange structure. It is different from the existing form of using metal fasteners, and improves the determination of the joint position that is not resistant to acid and alkali and corrosion, and can effectively improve the connection strength of the glass fiber reinforced tube without damaging the strength of the glass fiber.

[0010] Furthermore, the first reinforcement member includes a first connecting inner wall for cooperating with the side of the glass fiber reinforced tube body, the first connecting inner wall has a plurality of first annular grooves, and the first annular grooves are hot-melt connected to the side of the glass fiber reinforced tube body. By arranging a plurality of first annular grooves on the first reinforcement member, when the glass fiber reinforced tube body is connected to the first reinforcement member, the outer wall of the glass fiber reinforced tube body can be tightly matched with the first annular groove, thereby ensuring the stability of the cooperation between the first reinforcement member and the outer wall of the glass fiber reinforced tube body, and further ensuring the strength of the joint position of the glass fiber reinforced tube body.

[0011] Furthermore, the first reinforcement member also includes a first connection end face for connecting to the first flange, the first connection end face is perpendicular to the central axis of the glass fiber reinforced tube body, and the first connection end face is hot-melt connected to the first flange.

[0012] Furthermore, the diameter R of the connecting end face satisfies: R=r, wherein r is the diameter of the first flange. By designing the size of the connecting end face of the first reinforcement, the compatibility of the first reinforcement and the first flange can be effectively guaranteed, thereby preventing the end face of the first reinforcement from being too wide or too narrow and affecting the connection between the glass fiber reinforced tubes.

[0013] Furthermore, a second connecting piece is provided at the other end of the glass fiber reinforced tube body, and the second connecting piece can cooperate with the first connecting piece of another glass fiber reinforced tube to achieve the connection between the glass fiber reinforced tubes. By setting the second connecting piece, the connection of the two ends of the glass fiber reinforced tube can be achieved, thereby achieving the connection of multiple glass fiber reinforced tubes.

[0014] Furthermore, the second connecting member includes a second flange, and the second flange can cooperate with the first flange of another glass fiber reinforced tube to achieve the connection between the glass fiber reinforced tubes.

[0015] Furthermore, the outer edge of the second flange is provided with a limiting portion folded toward a side away from the glass fiber reinforced tube body, and the distance from the end face of the limiting portion away from the glass fiber reinforced tube body to the second flange is equal to the thickness of the first flange. By setting the limiting portion, the limiting portion is located at the end of the second flange away from the axis of the glass fiber reinforced tube body. Through the structural design of the limiting portion, a structure similar to a groove is formed, and when the first flange and the second flange are matched, the first flange can be accommodated in the groove, thereby further ensuring the stability of the connection between the glass fiber reinforced tubes, and through the structural design of the limiting portion, the probability of water leakage at the connection can be effectively reduced, thereby ensuring the connection effect.

[0016] Furthermore, the second connecting member also includes a second reinforcement member, which includes a second connecting inner wall for cooperating with the side of the glass fiber reinforced tube body, the second connecting inner wall has a plurality of second annular grooves, and the second annular grooves are hot-melt connected to the side of the glass fiber reinforced tube body; the second reinforcement member also includes a second connecting end face for connecting to the second flange, the second connecting end face is perpendicular to the central axis of the glass fiber reinforced tube body, and the second connecting end face is hot-melt connected to the second flange.

[0017] Second aspect

[0018] The embodiment of the present invention also provides a flanging mold for forming a flanging on a glass fiber reinforced tube body, the flanging mold comprising a base plate, a tube body and a chamfering assembly, the tube body being arranged on one side of the base plate, and the outer diameter of the tube body matching the inner diameter of the glass fiber reinforced tube body; the chamfering assembly being arranged at the intersection of the outer wall of the tube body and the base plate, the chamfering assembly comprising a first chamfering block and a second chamfering block; the first chamfering block being arranged at the connection between the outer wall of the tube body and the base plate, and being connected to the outer wall of the tube body and the base plate respectively; the first chamfering block comprising a first connecting surface for connecting to the outer wall of the tube body, and a second connecting surface for connecting to the base plate; the other side of the first chamfering block relative to the second connecting surface comprises a first guide surface and a first molding surface, one side of the first guide surface is connected to the outer wall of the tube body, and the other side of the first guide surface One side is connected to the first molding surface, and the angle formed by the first guide surface and the first molding surface is an obtuse angle, the first molding surface is parallel to the bottom plate, and the angle formed by the first guide surface and the outer wall of the tube body is an obtuse angle; the other side of the first chamfered block relative to the first connecting surface is a first limiting surface, and the second chamfered block is spaced apart relative to the first limiting surface; the surface of the second chamfered block close to the first chamfered block is a second limiting surface, and the distance between the second limiting surface and the first limiting surface is not less than the wall thickness of the glass fiber reinforced tube body; one end of the second chamfered block is detachably connected to the bottom plate, and the other end of the second chamfered block is provided with a second guide member for flanging, the second guide member includes a second guide surface, the second guide surface and the second limiting surface are inclined, and the angle between the second guide surface and the second limiting surface is an obtuse angle.

[0019] In the present embodiment, the flanging mold includes a tube body used for inserting into the glass fiber reinforced tube body, a bottom plate is arranged at one end of the tube body, a flanging assembly for forming a flanging structure is arranged at the junction of the bottom plate and the outer wall of the tube body, the flanging assembly includes a first chamfering block and a second chamfering block, and the second chamfering block is detachably connected to the bottom plate. When the flanging mold is used for flanging, after the end of the glass fiber reinforced tube body is heated, the end of the glass fiber reinforced tube body first contacts with the first guide surface. Since the first guide surface is arranged at an obtuse angle to the first molding surface, and the angle formed by the first guide surface and the outer wall of the tube body is also an obtuse angle, at the end of the glass fiber reinforced tube body When the second chamfering block contacts the first guide surface, the direction of the end of the glass fiber reinforced tube body can be changed. After the end is conveniently changed, as the flanging mold and the glass fiber reinforced tube continue to approach each other, the inner wall of the end of the glass fiber reinforced tube body cooperates with the first molding surface, thereby realizing the formation of the first flanging; and because the second chamfering block is detachably connected to the bottom plate, when the second chamfering block is connected to the bottom plate, the end of the glass fiber reinforced tube body continues to move upward, and the end of the glass fiber reinforced tube body contacts the second guide surface again, so that after changing direction, it cooperates with the second limiting surface to form a convex structure, thereby realizing the formation of the second flanging. Through the use of this mold, the second chamfering block can be connected in a targeted manner to realize the formation of the limiting portion, thereby realizing the preparation of the second flanging structure. Through one mold, the first flanging structure and the second flanging structure can be effectively formed, which greatly improves the applicability of the mold.

[0020] The third aspect

[0021] The embodiment of the present invention also provides a flanging method, comprising the following steps:

[0022] S1: end surface treatment, trimming the end surface of the glass fiber reinforced tube body to ensure that the end surface of the glass fiber reinforced tube body is perpendicular to the axis of the glass fiber reinforced tube body;

[0023] S2: end surface heating;

[0024] S3: flanging processing, according to the flanging requirements of the continuous glass fiber reinforced tube, selectively connecting the second chamfering block to the flanging die, inserting the tube body into the glass fiber reinforced tube body, and making the flanging die and the glass fiber reinforced tube body relatively close to form a flanging;

[0025] S4: After the flanging is completed and the glass fiber reinforced tube body is cooled, a first reinforcement member or a second reinforcement member is arranged on the side of the formed flanging close to the glass fiber reinforced tube body, and the first reinforcement member or the second reinforcement member is connected to the glass fiber reinforced tube body by adding the glass fiber reinforced tube body.

[0026] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0027] The present invention relates to a continuous glass fiber reinforced pipe connection structure, a flanging die and a flanging method. Through the structural design of the connection structure, the strength and rigidity of the glass fiber reinforced pipe connection are ensured while the strength of the glass fiber is not damaged.

[0028] The present invention relates to a continuous glass fiber reinforced pipe connection structure, a flanging die and a flanging method. The structural design of the first flanging and the second flanging ensures the connection stability between the glass fiber reinforced pipes while ensuring the tightness and sealing of the connection.

[0029] The present invention relates to a continuous glass fiber reinforced pipe connection structure, a flanging mold and a flanging method. Through the structural design of the first reinforcement member and the second reinforcement member, the stability of the first flanging and the second flanging structure is further guaranteed, thereby further ensuring the connection strength.

[0030] The present invention relates to a continuous glass fiber reinforced tube connection structure, a flanging mold and a flanging method. Through the structural design of the flanging mold, the preparation of the first flanging and the second flanging can be achieved by disassembling the second chamfering block in a targeted manner, thereby improving the applicability of the flanging mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0032] Figure 1 A schematic structural diagram of a continuous glass fiber reinforced tube connection structure provided by an embodiment of the present invention;

[0033] Figure 2 A schematic structural diagram of a first reinforcement member provided in an embodiment of the present invention;

[0034] Figure 3 A schematic diagram of the structure of a second connecting member provided in an embodiment of the present invention;

[0035] Figure 4 A schematic diagram of the flanging die structure provided by an embodiment of the present invention;

[0036] Figure 5 for Figure 4 A partial enlarged view of area A

[0037] Figure 6 A flow chart of a flanging method provided in an embodiment of the present invention.

[0038] Marks and corresponding parts names in the attached drawings:

[0039] 100-glass fiber reinforced tube body, 110-first connecting piece, 111-first flange, 112-first reinforcement, 112a-first connecting inner wall, 112b-first connecting end face, 120-second connecting piece, 121-second flange, 121a-limiting portion, 122-second reinforcement, 200-flanging mold, 210-bottom plate, 220-tube body, 230-chamfering assembly, 231-first chamfering block, 231a-first guide surface, 231b-first molding surface, 231c-first limiting surface, 232-second chamfering block, 232a-second limiting surface, 232b-second guide piece, 232b-1-second guide surface. DETAILED DESCRIPTION

[0040] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0041] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present invention. However, it is apparent to one of ordinary skill in the art that these specific details are not necessarily employed to practice the present invention. In other instances, well-known structures, circuits, materials, or methods are not specifically described in order to avoid obscuring the present invention.

[0042] Throughout the specification, references to "one embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "one embodiment," "an embodiment," "an example," or "an example" appearing in various places throughout the specification do not necessarily all refer to the same embodiment or example. In addition, particular features, structures, or characteristics may be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. In addition, it will be appreciated by those of ordinary skill in the art that the figures provided herein are for illustrative purposes and that the figures are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0043] In the description of the present invention, the directions or positional relationships indicated by terms such as “front”, “rear”, “left”, “right”, “up”, “down”, “vertical”, “horizontal”, “high”, “low”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the scope of protection of the present invention. Example

[0044] like Figure 1 As shown, an embodiment of the present invention provides a continuous glass fiber reinforced tube connection structure, including a glass fiber reinforced tube body 100, one end of the glass fiber reinforced tube body 100 is provided with a first connecting member 110; the first connecting member 110 includes a first flange 111 and a first reinforcement member 112; the first flange 111 can cooperate with the first flange 111 of another glass fiber reinforced tube to achieve the connection between the glass fiber reinforced tubes; the first reinforcement member 112 is sleeved on the glass fiber reinforced tube body 100; the first reinforcement member 112 is connected to the first flange 111 at one end close to the first flange 111.

[0045] In this embodiment, the continuous glass fiber reinforced tube connection structure includes a first connector 110 arranged at one end of the glass fiber reinforced tube body 100, and the first connector 110 is a flange structure, and the glass fiber reinforced tubes can be connected through the first connectors 110 of two different glass fiber reinforced tubes, and the first connector 110 is also provided with a first reinforcement 112, and the first reinforcement 112 is arranged on one side of the first flange 111 close to the other end of the glass fiber reinforced tube body 100, and the first reinforcement 112 is sleeved on the glass fiber reinforced tube body 100, and one end is connected to the first flange. The edge 111 is connected to realize the fixation of the first reinforcement 112. By setting the first reinforcement 112, the strength of the first flange 111 is effectively improved, and the stability of the connection between the two glass fiber reinforced tubes is further guaranteed. Compared with the prior art, the glass fiber reinforced tube connection structure provided by this solution is provided with a flange structure, and the connection between the glass fiber reinforced tubes is realized by forming a structure similar to a plastic flange through the flange structure. It is different from the existing form of using metal fasteners, and improves the determination of the joint position that is not resistant to acid and alkali and corrosion, and can effectively improve the connection strength of the glass fiber reinforced tube without damaging the strength of the glass fiber.

[0046] like Figure 2As shown, in some embodiments, the first reinforcement 112 includes a first connecting inner wall 112a for cooperating with the side of the glass fiber reinforced tube body 100, and the first connecting inner wall 112a has a plurality of first annular grooves, and the first annular grooves are hot-melt connected to the side of the glass fiber reinforced tube body 100. By arranging a plurality of first annular grooves on the first reinforcement 112, when the glass fiber reinforced tube body 100 is connected to the first reinforcement 112, the outer wall of the glass fiber reinforced tube body 100 can be tightly matched with the first annular groove, thereby ensuring the stability of the cooperation between the first reinforcement 112 and the outer wall of the glass fiber reinforced tube body 100, and further ensuring the strength of the joint position of the glass fiber reinforced tube body 100.

[0047] Wherein, the depth of the first annular groove is 1mm-3mm.

[0048] The material of the first reinforcement member 112 includes but is not limited to 45# steel, 304# stainless steel, etc.

[0049] It should be noted that, as technical personnel in this field should know, the first reinforcement member 112 is sleeved on the glass fiber reinforced tube body 100, so the outer diameter of the glass fiber reinforced tube body 100 should be smaller than the inner diameter of the first reinforcement member 112. Specifically, the inner diameter of the first reinforcement member 112 is 3mm-5mm larger than the outer diameter of the glass fiber reinforced tube body 100.

[0050] like Figure 2 As shown, further, the first reinforcement member 112 also includes a first connecting end face 112b for connecting to the first flange 111, the first connecting end face 112b is perpendicular to the central axis of the glass fiber reinforced tube body 100, and the first connecting end face 112b is hot-melt connected to the first flange 111.

[0051] Furthermore, the diameter R of the connecting end face satisfies: R=r, wherein r is the diameter of the first flange 111. By designing the size of the connecting end face of the first reinforcement 112, the compatibility of the first reinforcement 112 and the first flange 111 can be effectively guaranteed, thereby preventing the end face of the first reinforcement 112 from being too wide or too narrow and affecting the connection between the glass fiber reinforced tubes.

[0052] like Figure 3 As shown, in some embodiments, a second connecting piece 120 is further provided at the other end of the glass fiber reinforced tube body 100, and the second connecting piece 120 can cooperate with the first connecting piece 110 of another glass fiber reinforced tube to achieve the connection between the glass fiber reinforced tubes. By setting the second connecting piece 120, the connection of the two ends of the glass fiber reinforced tube can be achieved, thereby achieving the connection of multiple glass fiber reinforced tubes.

[0053] In some embodiments, the second connecting member 120 includes a second flange 121 , and the second flange 121 can cooperate with the first flange 111 of another glass fiber reinforced tube to achieve connection between the glass fiber reinforced tubes.

[0054] In some embodiments, the outer edge of the second flange 121 is provided with a limiting portion 121a folded toward the side away from the glass fiber reinforced tube body 100, and the distance from the end face of the limiting portion 121a away from the glass fiber reinforced tube body 100 to the second flange 121 is equal to the thickness of the first flange 111. By setting the limiting portion 121a, the limiting portion 121a is located at the end of the second flange 121 away from the axis of the glass fiber reinforced tube body 100. Through the structural design of the limiting portion 121a, a structure similar to a groove is formed, and when the first flange 111 and the second flange are matched, the first flange 111 can be accommodated in the groove, which further ensures the stability of the connection between the glass fiber reinforced tubes, and through the structural design of the limiting portion 121a, the probability of water leakage at the connection can be effectively reduced, ensuring the connection effect.

[0055] In some embodiments, the second connecting member 120 also includes a second reinforcing member 122, the second reinforcing member 122 includes a second connecting inner wall for cooperating with the side of the glass fiber reinforced tube body 100, the second connecting inner wall has a plurality of second annular grooves, and the second annular grooves are hot-melt connected to the side of the glass fiber reinforced tube body 100; the second reinforcing member 122 also includes a second connecting end face for connecting to the second flange 121, the second connecting end face is perpendicular to the central axis of the glass fiber reinforced tube body 100, and the second connecting end face is hot-melt connected to the second flange 121.

[0056] It should be noted that the first reinforcement 112 and the second reinforcement 122 are distinguished because of the difference in the matching relationship between the first reinforcement 112 and the second reinforcement 122, but in fact, the first reinforcement 112 and the second reinforcement 122 can be reinforcement sleeves with the same structure.

[0057] like Figure 4-5As shown, the embodiment of the present invention further provides a flanging mold 200 for forming a flanging on a glass fiber reinforced tube body 100, the flanging mold 200 comprises a bottom plate 210, a tube body 220 and a chamfering assembly 230, the tube body 220 is arranged on one side of the bottom plate 210, and the outer diameter of the tube body 220 matches the inner diameter of the glass fiber reinforced tube body 100; the chamfering assembly 230 is arranged at the intersection of the outer wall of the tube body 220 and the bottom plate 210, and the chamfering assembly 230 comprises a first chamfering block 231 and a second chamfering block 232; the first chamfering block 231 is arranged at the connection between the outer wall of the tube body 220 and the bottom plate 210, and is connected to the outer wall of the tube body 220 and the bottom plate 210 respectively; the first chamfered block 231 includes a first connection surface for connecting to the outer wall of the tube body 220, and a second connection surface for connecting to the bottom plate 210; the other side of the first chamfered block 231 relative to the second connection surface includes a first guide surface 231a and a first molding surface 231b, one side of the first guide surface 231a is connected to the outer wall of the tube body 220, and the other side of the first guide surface 231a is connected to the outer wall of the tube body 220 The first molding surface 231b is connected, and the angle formed by the first guide surface 231a and the first molding surface 231b is an obtuse angle. The first molding surface 231b is parallel to the bottom plate 210, and the angle formed by the first guide surface 231a and the outer wall of the tube body 220 is an obtuse angle; the other side of the first chamfered block 231 relative to the first connecting surface is a first limiting surface 231c, and the second chamfered block 232 is spaced relative to the first limiting surface 231c; the surface of the second chamfered block 232 close to the first chamfered block 231 is a second limiting surface 232a, The distance between the second limiting surface 232a and the first limiting surface 231c is not less than the wall thickness of the glass fiber reinforced tube body 100; one end of the second chamfering block 232 is detachably connected to the base plate 210, and the other end of the second chamfering block 232 is provided with a second guide member 232b for flanging, and the second guide member 232b includes a second guide surface 232b-1, and the second guide surface 232b-1 is inclined to the second limiting surface 232a, and the angle between the second guide surface 232b-1 and the second limiting surface 232a is an obtuse angle.

[0058] In the present embodiment, the flanging mold 200 includes a tube body 220 for use and insertion into the glass fiber reinforced tube body 100, a bottom plate 210 is provided at one end of the tube body 220, a flanging assembly for forming a flanging structure is provided at the junction of the bottom plate 210 and the outer wall of the tube body 220, the flanging assembly includes a first chamfering block 231 and a second chamfering block 232, and the second chamfering block 232 is detachably connected to the bottom plate 210. When the flanging mold 200 is used for flanging, after the end of the glass fiber reinforced tube body 100 is heated, the end of the glass fiber reinforced tube body 100 first contacts the first guide surface 231a. Since the first guide surface 231a and the first molding surface 231b are arranged at an obtuse angle, and the angle formed by the first guide surface 231a and the outer wall of the tube body 220 is also an obtuse angle, When the end of the main body 100 contacts the first guide surface 231a, the direction of the end of the glass fiber reinforced tube main body 100 can be changed. After the end is conveniently changed, since the flanging mold 200 and the glass fiber reinforced tube continue to approach each other, the inner wall of the end of the glass fiber reinforced tube main body 100 cooperates with the first molding surface 231b, thereby realizing the formation of the first flanging 111; and since the second chamfering block 232 is detachably connected to the base plate 210, when the second chamfering block 232 is connected to the base plate 210, the end of the glass fiber reinforced tube main body 100 continues to move upward, and the end of the glass fiber reinforced tube main body 100 once again contacts the second guide surface 232b-1, so that after changing direction, it cooperates with the second limiting surface 232a to form a convex structure, thereby realizing the formation of the second flanging 121. By using this mold, the second chamfer block 232 can be connected in a targeted manner to achieve the formation of the limiting portion 121a, thereby realizing the preparation of the second flange 121 structure. Through one mold, the first flange 111 structure and the second flange 121 structure can be effectively formed, which greatly improves the applicability of the mold.

[0059] Specifically, the first guide surface 231a and the first molding surface 231b are arranged at an obtuse angle, and the angle between the two is 135°.

[0060] Specifically, the included angle between the second guide surface 232b-1 and the second limiting surface 232a is an obtuse angle, and the included angle between the two is 135°.

[0061] like Figure 6 As shown, an embodiment of the present invention also provides a flanging method, comprising the following steps:

[0062] S1: end surface treatment, trimming the end surface of the glass fiber reinforced tube body 100 to ensure that the end surface of the glass fiber reinforced tube body 100 is perpendicular to the axis of the glass fiber reinforced tube body 100;

[0063] S2: end surface heating;

[0064] S3: flanging processing, according to the flanging requirements of the continuous glass fiber reinforced tube, selectively connect the second chamfering block 232 to the flanging mold 200, insert the tube body 220 into the glass fiber reinforced tube body 100, and make the flanging mold 200 relatively close to the glass fiber reinforced tube body 100 to form a flanging;

[0065] S4: After the flanging is completed and the glass fiber reinforced tube body 100 is cooled, the first reinforcement 112 or the second reinforcement 122 is arranged on the side of the formed flanging close to the glass fiber reinforced tube body 100, and the first reinforcement 112 or the second reinforcement 122 is connected to the glass fiber reinforced tube body 100 by adding the glass fiber reinforced tube body 100.

[0066] Among them, in step S1, the end surface of the glass fiber reinforced tube body 100 is processed to effectively ensure that the end surface of the glass fiber reinforced tube body 100 can simultaneously contact the first guide surface 231a of the flanging mold 200, thereby ensuring the molding effect.

[0067] It should be noted that in step S2, the end portion is heated. Depending on the material of the glass fiber reinforced pipe body 100, such as HDPE, PERT, PEX, etc., the heating temperature is 260°-320°, and the heating length is 80-150 mm.

[0068] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A flanging die for forming a flanging on a glass fiber reinforced pipe body (100), characterized in that: The flanging die (200) comprises a bottom plate (210), a tube body (220) and a chamfering assembly (230); the tube body (220) is arranged on one side of the bottom plate (210); the outer diameter of the tube body (220) matches the inner diameter of the glass fiber reinforced tube body (100); the chamfering assembly (230) is arranged at the intersection of the outer wall of the tube body (220) and the bottom plate (210); the chamfering assembly (230) comprises a first chamfering block (231) and a second chamfering block (232); the first chamfering block (231) is arranged on the tube body (210); The connection between the outer wall of the tube body (220) and the bottom plate (210) is respectively connected to the outer wall of the tube body (220) and the bottom plate (210); the first chamfered block (231) comprises a first connection surface for connecting to the outer wall of the tube body (220), and a second connection surface for connecting to the bottom plate (210); the other surface of the first chamfered block (231) relative to the second connection surface comprises a first guide surface (231a) and a first molding surface (231b), one side of the first guide surface (231a) being connected to the outer wall of the tube body (220) The other side of the first guide surface (231a) is connected to the first molding surface (231b), and the angle formed by the first guide surface (231a) and the first molding surface (231b) is an obtuse angle. The first molding surface (231b) is parallel to the bottom plate (210), and the angle formed by the first guide surface (231a) and the outer wall of the tube body (220) is an obtuse angle. The other side of the first chamfered block (231) relative to the first connecting surface is a first limiting surface (231c), and the second chamfered block (232) relative to the first limiting surface (231 c) are arranged at intervals; the surface of the second chamfered block (232) close to the first chamfered block (231) is a second limiting surface (232a), and the distance between the second limiting surface (232a) and the first limiting surface (231c) is not less than the wall thickness of the glass fiber reinforced tube body (100); one end of the second chamfered block (232) is detachably connected to the bottom plate (210), and the other end of the second chamfered block (232) is provided with a second guide member (232b) for flanging, and the second guide member (232b) includes a second guide surface (232b-1), the second guide surface (232b-1) and the second limiting surface (232a) are arranged obtusely, and the angle between the second guide surface (232b-1) and the second limiting surface (232a) is an obtuse angle.

2. A flanging method, based on the flanging die according to claim 1, characterized in that: The steps include: S1: end surface treatment, trimming the end surface of the glass fiber reinforced tube body (100) to ensure that the end surface of the glass fiber reinforced tube body (100) is perpendicular to the axis of the glass fiber reinforced tube body (100); S2: end surface heating; S3: flanging processing, according to the flanging requirements of the continuous glass fiber reinforced tube, selectively connecting the second chamfering block (232) to the flanging die, inserting the tube body (220) into the glass fiber reinforced tube body (100), and making the flanging die and the glass fiber reinforced tube body (100) relatively close to each other, so as to form a flanging; S4: installing the reinforcement member. After the flanging is completed and the glass fiber reinforced tube body (100) is cooled, a first reinforcement member (112) or a second reinforcement member (122) is arranged on a side of the formed flanging close to the glass fiber reinforced tube body (100).

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