Drawing and pultrusion process for processing glass fiber reinforced plastic product

Abstract

The invention discloses a drawing and pultrusion process for glass fiber reinforced plastic product processing, and relates to the technical field of glass fiber reinforced plastic product processing, and the drawing and pultrusion process comprises the following steps: arranging a reinforcing material: arranging the reinforcing material on a creel; impregnation: enabling the reinforcing material to pass through an impregnation tank and to be impregnated with the resin glue solution; preforming, wherein the impregnated reinforcing material enters a preforming device; extrusion molding and curing: putting the preformed reinforcing material into a mold, and gelling and curing in the mold to form a tubular glass fiber reinforced plastic profile; pulling, namely pulling the cured tubular glass fiber reinforced plastic profile out of the mold by a pulling device; cutting: cutting the drawn tubular glass fiber reinforced plastic profile according to a preset length; the clamping module drags the tubular glass fiber reinforced plastic profile forwards by a certain distance, after the clamping module moves to the limiting position, the clamping module loses the clamping effect on the tubular glass fiber reinforced plastic profile, the reciprocating moving part drives the clamping module to move to the initial position, and continuous traction of the tubular glass fiber reinforced plastic profile can be achieved by repeating the steps.

Description

Technical Field

[0001] The invention relates to the technical field of glass fiber reinforced plastic product processing, and in particular to a drawing, pultrusion and extrusion process for glass fiber reinforced plastic product processing. Background Art

[0002] Glass fiber reinforced plastic (FRP) is also called GFRP, which is fiber reinforced plastic. It generally refers to unsaturated polyester, epoxy resin and phenolic resin matrix reinforced with glass fiber. It is called glass fiber reinforced plastic or FRP. It is different from tempered glass. Due to the different types of resins used, there are polyester FRP, epoxy FRP and phenolic FRP. It is light and hard, non-conductive, stable in performance, high in mechanical strength, less recycled and corrosion-resistant.

[0003] In the prior art, for example, the patent document with the publication number CN112793191B discloses a traction device for a FRP pultrusion machine, and also discloses that a FRP sheet to be towed is supported by a support plate, and a traction cylinder in a traction device on the traction plate drives a guide rod to drive a traction suction cup assembly to tow the FRP sheet;

[0004] However, for tubular FRP products, during the traction process, due to the large diameter of the traction suction cup and the curved surface of the tubular FRP, there will be a gap when the suction cup contacts the surface of the FRP, making it impossible for the traction suction cup to be completely adsorbed on the surface of the tubular FRP. When a suction cup with a smaller diameter is used, the adsorption force is too small, so it is easy to separate from the FRP during the traction process and is not stable enough. Summary of the invention

[0005] The purpose of the present invention is to provide a drawing and pultrusion process for processing glass fiber reinforced plastic products to solve the following technical problems:

[0006] Since the diameter of the traction suction cup is large and the surface of the tubular FRP is curved, there will be a gap when the suction cup contacts the surface of the FRP, making it impossible for the traction suction cup to be completely adsorbed on the surface of the tubular FRP. When a suction cup with a smaller diameter is used, the adsorption force is too small, so it is easy to separate from the FRP during the pulling process.

[0007] The purpose of the present invention can be achieved by the following technical solutions:

[0008] A drawing and pultrusion process for processing glass fiber reinforced plastic products, comprising the following steps:

[0009] Reinforcement material arrangement: Arrange the reinforcement material on the creel;

[0010] Dipping: The reinforcement material passes through the dipping tank and is soaked in the resin glue;

[0011] Preforming: The impregnated reinforcement material enters the preforming device;

[0012] Extrusion molding and curing: The preformed reinforcement material enters the mold, gels and cures in the mold to form a tubular FRP profile;

[0013] Traction: The solidified tubular FRP profile is pulled out of the mold by a traction device;

[0014] Cutting: The pulled out tubular FRP profiles are cut to preset lengths.

[0015] Preferably, the traction device comprises a base fixedly arranged on one side of the mold, and two groups of clamping modules for clamping the tubular FRP profile are symmetrically arranged on the base;

[0016] Wherein, the two groups of clamping modules are connected to a reciprocating moving member, and the reciprocating moving member is used to drive the two groups of clamping modules to reciprocate along the axial direction of the tubular glass fiber reinforced plastic profile.

[0017] Preferably, the clamping module comprises four groups of suction cups arranged in a circumferential array, each suction cup is connected to an adsorption tube, and the other end of the adsorption tube is connected to the air pressure regulating mechanism;

[0018] Wherein, each of the adsorption tubes is slidably arranged on the positioning ring, and the clamping module also includes a driving part, which is used to drive each of the adsorption tubes on the positioning ring to synchronously approach or move away from the ring center end.

[0019] Preferably, a support frame is provided on one side of the positioning ring, the positioning ring is fixed to the support frame through a plurality of groups of connecting seats, and the support frames on both sides are fixed through connecting plates.

[0020] Preferably, the driving part includes a driving seat fixedly arranged on the adsorption tube, an annular plate rotatably arranged on one side of the positioning ring, four groups of arc grooves are arranged on the annular plate in a circumferential array, the arc grooves extend from the proximal end to the distal end, and a pin shaft fixedly connected to the driving seat is slidably embedded in the arc groove, annular teeth are fixedly arranged on the outer edge surface of the annular plate, a baffle is fixedly arranged on the bottom of one side connecting plate, a guide rod is slidably arranged on the bottom of the baffle, the end of the guide rod is fixed to the adjusting plate, racks meshing with the annular teeth are symmetrically fixed at both ends of the adjusting plate, and a spring is arranged on the guide rod.

[0021] Preferably, a bottom plate is fixedly arranged on one side of the base, and an inclined guide plate is fixedly arranged on the bottom plate;

[0022] Among them, a straight line guide plate is fixedly arranged on one side of the inclined guide plate, a movable plate is rotatably arranged on one end of the straight line guide plate close to the inclined guide plate, the movable plate is rotatably connected to the straight line guide plate through a rotating shaft, a torsion spring is provided on the rotating shaft, an adjusting rod is fixedly arranged on the end of the adjusting plate away from the guide rod, and a guide wheel is rotatably arranged at the bottom of the end of the adjusting rod.

[0023] Preferably, the reciprocating moving part includes a limit plate fixedly arranged on the bottom plate, a screw is rotatably arranged on one side of the limit plate, the end of the screw is fixed to the output end of the driving motor, and a nut is spirally sleeved on the screw for driving the connecting plate to move.

[0024] Preferably, the air pressure regulating mechanism includes a driving box fixed to one side of the baffle, a guide groove connected to the interior is opened on one side of the driving box, a piston is slidably arranged in the driving box, the piston is fixed to a push seat by a push rod, the push seat is fixed by a support shaft and a nut, the piston and the box wall are enclosed to form an air cavity, an annular air pipe is provided on the outside of the positioning ring, the adsorption tube is connected to the annular air pipe through a telescopic tube, the annular air pipe is fixed to one side of the supporting frame, the annular air pipes on both sides are connected by a first air supply pipe, one side of the air cavity is connected to a second air supply pipe, and the second air supply pipe is connected to the first air supply pipe.

[0025] Beneficial effects of the present invention:

[0026] (1) After the tubular FRP profile of the present invention is solidified and formed by a mold, the outer wall of the tubular FRP profile is clamped by a clamping module, and then the clamping module is driven by a reciprocating moving member to move in a direction away from the mold, and the clamping module pulls the tubular FRP profile forward for a distance. When the clamping module moves to the extreme position, the clamping module loses its clamping effect on the tubular FRP profile, and finally the reciprocating moving member drives the clamping module to move to the initial position, and in this way, continuous pulling of the tubular FRP profile can be achieved;

[0027] (2) When clamping the tubular FRP profile, the present invention first drives each adsorption tube to move toward the center end of the ring on the positioning ring through the driving unit. When each suction cup is in contact with the outer wall of the tubular FRP profile, air is evacuated from the adsorption tube through the air pressure regulating mechanism, thereby generating negative pressure at the suction cup, so that the suction cup can be tightly adsorbed on the adsorption tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described below in conjunction with the accompanying drawings.

[0029] Figure 1 It is a structural schematic diagram of a drawing and pultrusion process for processing glass fiber reinforced plastic products of the present invention;

[0030] Figure 2 It is a schematic diagram of the installation structure of a traction device in a drawing, pulling and extrusion process for processing a glass fiber reinforced plastic product according to the present invention;

[0031] Figure 3 It is a structural schematic diagram of a traction device in a drawing, pulling and extrusion process for processing a glass fiber reinforced plastic product according to the present invention;

[0032] Figure 4 It is a structural schematic diagram of an annular plate of a traction device in a drawing and pultrusion process for processing a glass fiber reinforced plastic product according to the present invention;

[0033] Figure 5 It is a structural schematic diagram of a support frame of a traction device in a drawing, pulling and extrusion process for processing a glass fiber reinforced plastic product according to the present invention;

[0034] Figure 6 It is a structural schematic diagram of a screw rod of a traction device in a drawing, pulling and extruding process for processing a glass fiber reinforced plastic product according to the present invention;

[0035] Figure 7 It is a structural schematic diagram of an inclined guide plate of a traction device in a drawing, pulling and extruding process for processing a glass fiber reinforced plastic product according to the present invention;

[0036] Figure 8 The present invention is a schematic diagram of the structure of an air cavity of a traction device in a drawing, pulling and extrusion process for processing a glass fiber reinforced plastic product.

[0037] In the figure: 1, mold; 2, bottom plate; 3, reciprocating moving part; 4, clamping module; 5, annular plate; 101, tubular glass fiber reinforced plastic profile; 102, base; 201, limit plate; 202, drive motor; 203, screw; 204, nut; 205, support shaft; 206, drive box; 207, guide groove; 208, second air delivery pipe; 209, push seat; 210, push rod; 211, piston; 212, air cavity; 301, support frame; 302, connecting plate; 3 03, baffle; 304, adjustment plate; 305, rack; 401, linear guide plate; 402, guide wheel; 403, movable plate; 404, adjustment rod; 405, guide rod; 406, spring; 407, inclined guide plate; 408, rotating shaft; 501, annular gear; 502, arc groove; 503, pin shaft; 504, annular air pipe; 505, positioning ring; 506, adsorption tube; 507, suction cup; 508, driving seat; 509, first air supply pipe; 510, connecting seat. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Example 1

[0040] See also Figure 1 As shown, the present invention is a drawing and pultrusion process for processing glass fiber reinforced plastic products, comprising the following steps:

[0041] S100, reinforcing material arrangement: arranging the reinforcing material on the creel; specifically, the reinforcing material is glass fiber and felt material, etc., which is not limited in this embodiment to meet actual production needs;

[0042] S200, dipping: the reinforcing material passes through the dipping tank and is soaked in the resin glue liquid; specifically, during the dipping process, the straight tank dipping method is generally used, which realizes the continuous reflux of the glue liquid through the vacuum pump system, which not only ensures the good impregnation of the reinforcing material, but also makes the arrangement of the fibers and the felt neat and smooth;

[0043] S300, preforming: the impregnated reinforcement material enters the preforming device; specifically, the device is configured according to the cross-sectional shape required by the product, which is not limited in this embodiment, and its main function is to position the reinforcement material, arrange it in order, and discharge excess resin and bubbles;

[0044] S400, extrusion molding and curing: the preformed reinforcement material enters the mold 1, and is gelled and cured in the mold 1 to form a tubular FRP profile 101; specifically, the mold 1 is the most critical part of the pultrusion process, and its length is usually between 0.6 and 1.2 m; wherein the temperature of the mold 1 is determined by the performance of the resin system, and is generally divided into three different heating zones;

[0045] S500, traction: the solidified tubular FRP profile 101 is continuously pulled out of the mold by a traction device;

[0046] S600, cutting: The pulled-out tubular FRP profile 101 is cut into a preset length by an automatically synchronously moving cutting saw.

[0047] Example 2

[0048] Based on Example 1, please refer to Figure 2 The traction device includes a base 102 fixedly arranged on one side of the mold 1, and two groups of clamping modules 4 for clamping the tubular glass fiber reinforced plastic profile 101 are symmetrically arranged on the base 102, wherein the two groups of clamping modules 4 are connected to the reciprocating moving member 3, and the reciprocating moving member 3 is used to drive the two groups of clamping modules 4 to reciprocate along the axial direction of the tubular glass fiber reinforced plastic profile 101;

[0049] It can be explained that after the tubular FRP profile 101 is solidified and formed by the mold 1, the outer wall of the tubular FRP profile 101 is clamped by the clamping module 4, and then the reciprocating moving part 3 drives the clamping module 4 to move in a direction away from the mold 1. The clamping module 4 pulls the tubular FRP profile 101 forward for a distance. When the clamping module 4 moves to the extreme position, the clamping module 4 loses the clamping effect on the tubular FRP profile 101, and finally the reciprocating moving part 3 drives the clamping module 4 to move to the initial position. In this way, continuous pulling of the tubular FRP profile 101 can be achieved.

[0050] In this embodiment, please refer to Figure 3-Figure 5 , the clamping module 4 includes four groups of suction cups 507 arranged in a circumferential array, each suction cup 507 is connected to an adsorption tube 506, and the other end of the adsorption tube 506 is connected to an air pressure regulating mechanism, wherein each adsorption tube 506 is slidably arranged on the positioning ring 505, and the clamping module 4 also includes a driving unit, which is used to drive each adsorption tube 506 to synchronously approach or move away from the ring center end on the positioning ring 505; it can be explained that when the tubular glass fiber reinforced plastic profile 101 is clamped, each adsorption tube 506 is first driven by the driving unit to move toward the ring center end on the positioning ring 505, and when each suction cup 507 is in contact with the outer wall of the tubular glass fiber reinforced plastic profile 101, the air is evacuated by the adsorption tube 506 through the air pressure regulating mechanism, and then a negative pressure is generated at the suction cup 507, so that the suction cup 507 can be tightly adsorbed on the adsorption tube 506;

[0051] It should be noted that the diameter of the suction cup 507 in this embodiment is smaller than the diameter of the traction suction cup assembly in the prior art, so as to fit closely with the outer wall of the tubular fiberglass reinforced plastic profile 101.

[0052] In addition, a support frame 301 is provided on one side of the positioning ring 505, and the positioning ring 505 is fixed to the support frame 301 through a plurality of groups of connecting seats 510, and the support frames 301 on both sides are fixed through connecting plates 302; specifically, by connecting the clamping modules 4 on both sides into a whole, the reciprocating moving part 3 can synchronously drive the clamping modules 4 on both sides to move.

[0053] See also Figure 4-Figure 6The driving part includes a driving seat 508 fixedly arranged on the adsorption tube 506, a ring plate 5 is rotatably arranged on one side of the positioning ring 505, and four groups of arc grooves 502 are arranged on the ring plate 5 in a circumferential array, and the arc groove 502 extends from the proximal end to the distal end. A pin shaft 503 fixedly connected to the driving seat 508 is slidably embedded in the arc groove 502, and an annular tooth 501 is fixedly arranged on the outer edge of the ring plate 5, and a baffle 303 is fixedly arranged at the bottom of the connecting plate 302 on one side, and a guide rod 405 is slidably arranged at the bottom of the baffle 303, and the end of the guide rod 405 is fixed to the adjusting plate 304, and the two ends of the adjusting plate 304 are symmetrically fixed with racks 305 meshing with the annular tooth 501, and a spring 406 is arranged on the guide rod 405; specifically, one end of the spring 406 is fixed to the baffle 303, and the other end is fixed to the adjusting plate 304; it can be explained Yes, when the spring 406 is in the natural state, based on the meshing state of the rack 305 and the annular tooth 501, the annular plate 5 limits each pin shaft 503 to the position closest to the ring center end through the arc groove 502. At this time, the distance between each group of suction cups 507 and the ring center end is the smallest. Therefore, when the tubular FRP profile 101 is conveyed at the ring center end, each group of suction cups 507 needs to move synchronously in the direction away from the ring center end. At this time, the annular tooth 501 drives the adjustment plate 304 to move toward the baffle 303 by meshing with the rack 305 to compress the spring 406. Based on the elastic force of the spring 406, it can act in the opposite direction on the rack 305 and the annular tooth 501, and then based on the clamping force of each suction cup 507 in the direction of the tubular FRP profile 101, each suction cup 507 is tightly fitted to the wall of the tubular FRP profile 101.

[0054] See also Figure 6-Figure 7After the reciprocating moving member 3 pulls the tubular glass fiber reinforced plastic profile 101 forward to the limit distance, when the driving clamping module 4 is reset, in order to separate each suction cup 507 from the tube wall of the tubular glass fiber reinforced plastic profile 101, in this embodiment, a bottom plate 2 is fixedly arranged on one side of the base 102, and an inclined guide plate 407 is fixedly arranged on the bottom plate 2, wherein a straight line guide plate 401 is fixedly arranged on one side of the inclined guide plate 407, and a movable plate 403 is rotatably arranged on one end of the straight line guide plate 401 close to the inclined guide plate 407, and the movable plate 403 is rotatably connected to the straight line guide plate 401 through a rotating shaft 408, and a torsion spring is arranged on the rotating shaft 408, and an adjusting rod 404 is fixedly arranged on one end of the adjusting plate 304 away from the guide rod 405, and a guide wheel 402 is rotatably arranged at the bottom of the end of the adjusting rod 404; it can be explained that when the reciprocating moving member 3 drives the tubular glass fiber reinforced plastic profile 101 to pull forward, when it is about to reach the limit position, the guide wheel 402 and the inclined guide plate 407 roll against the straight line guide plate 401. Then, under the limiting action of the inclined guide plate 407, the adjusting rod 404 pushes the adjusting plate 304 to move further toward the baffle 303, and the adjusting plate 304 engages with the annular tooth 501 through the rack 305 to drive the annular plate 5 to rotate, so as to drive each suction cup 507 to move in the direction away from the tubular glass fiber reinforced plastic profile 101 until it is separated from the pipe wall. During the rolling process of the guide wheel 402 on one side of the inclined guide plate 407, the movable plate 403 can be pushed to rotate in the direction away from the inclined guide plate 407. When the guide wheel 402 is separated from the inclined guide plate 407, the torsion spring drives the movable plate 403 to reset through the rotating shaft 408, and then the reciprocating moving part 3 drives the clamping module 4 to reset to the initial position. The guide wheel 402 then rolls and abuts with the movable plate 403 and the linear guide plate 401 in turn and moves to the initial position, and finally separates from the linear guide plate 401, and repeats in this way to avoid the suction cup 507 from contacting the pipe wall when resetting and causing wear.

[0055] See also Figure 3 The reciprocating moving member 3 includes a limit plate 201 fixedly arranged on the bottom plate 2, a screw rod 203 is rotatably arranged on one side of the limit plate 201, the end of the screw rod 203 is fixed to the output end of the driving motor 202, and a nut 204 for driving the connecting plate 302 to move is spirally sleeved on the screw rod 203; it can be explained that when the driving motor 202 is started to drive the screw rod 203 to rotate, the nut 204 can synchronously drive the connecting plate 302 to move during the movement of the screw rod 203, and the connecting plate 302 drives the clamping modules 4 on both sides to move;

[0056] See also Figure 3 and Figure 8The air pressure regulating mechanism includes a driving box 206 fixed to one side of the baffle 303, a guide groove 207 communicating with the interior is opened on one side of the driving box 206, a piston 211 is slidably arranged in the driving box 206, the piston 211 is fixed to the push seat 209 through a push rod 210, the push seat 209 is fixed to the nut 204 through a support shaft 205, the piston 211 and the box wall are surrounded to form an air cavity 212, an annular air pipe 504 is arranged on the outside of the positioning ring 505, the adsorption tube 506 is communicated with the annular air pipe 504 through a telescopic tube, the annular air pipe 504 is fixed to one side of the supporting frame 301, the annular air pipes 504 on both sides are communicated through a first air pipe 509, one side of the air cavity 212 is connected to a second air pipe 208, and the second air pipe 208 is connected to the first air pipe 509 It can be explained that when the clamping module 4 is driven to move forward, the nut 204 first drives the piston 211 to slide in the driving box 206 through the push seat 209 and the push rod 210. During the sliding process of the piston 211, the air cavity 212 generates negative pressure, and negative pressure is generated in the adsorption tube 506 through the second air pipe 208, the first air pipe 509 and the annular air pipe 504. When the negative pressure reaches the limit position, as the nut 204 continues to move, the negative pressure suction force of the suction cup 507 on the tubular fiberglass profile 101 can be used to drive it forward to achieve the traction effect. After one conveying is completed, as the nut 204 is reset, the gas in the air cavity 212 can be synchronously pushed to the suction cup 507 to facilitate the separation of the suction cup 507 from the tube wall.

[0057] The working method of the traction device comprises the following steps:

[0058] After the tubular FRP profile 101 is solidified and formed by the mold 1, the outer wall of the tubular FRP profile 101 is clamped by the clamping module 4;

[0059] Then, the driving motor 202 is started to drive the screw rod 203 to rotate. The nut 204 can synchronously drive the connecting plate 302 to move during the movement on the screw rod 203. The connecting plate 302 drives the clamping module 4 to move in a direction away from the mold 1. The clamping module 4 pulls the tubular glass fiber reinforced plastic profile 101 forward for a distance.

[0060] When the clamping module 4 moves to the extreme position, the clamping module 4 loses the clamping effect on the tubular FRP profile 101, and finally drives the clamping module 4 to move to the initial position, and so on.

[0061] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate directions or positional relationships 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, rather than indicating or implying that the device or element referred to must have a specific direction and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0062] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A drawing and pultrusion process for processing glass fiber reinforced plastic products, characterized in that: The steps include: Reinforcement material arrangement: Arrange the reinforcement material on the creel; Dipping: The reinforcement material passes through the dipping tank and is soaked in the resin glue; Preforming: The impregnated reinforcement material enters the preforming device; Extrusion molding and curing: the preformed reinforcement material enters the mold (1), and is gelled and cured in the mold (1) to form a tubular FRP profile (101); Traction: The solidified tubular FRP profile (101) is pulled out from the mold by a traction device; Cutting: The drawn tubular glass fiber reinforced plastic profile (101) is cut into a preset length.

2. A drawing and pultrusion process for processing glass fiber reinforced plastic products according to claim 1, characterized in that: The traction device comprises a base (102) fixedly arranged on one side of the mold (1), and two groups of clamping modules (4) for clamping the tubular glass fiber reinforced plastic profile (101) are symmetrically arranged on the base (102); The two groups of clamping modules (4) are both connected to the reciprocating member (3), and the reciprocating member (3) is used to drive the two groups of clamping modules (4) to reciprocate along the axial direction of the tubular glass fiber reinforced plastic profile (101).

3. A drawing and pultrusion process for processing glass fiber reinforced plastic products according to claim 2, characterized in that: The clamping module (4) comprises four groups of suction cups (507) arranged in a circumferential array, each suction cup (507) is connected to an adsorption tube (506), and the other end of the adsorption tube (506) is connected to an air pressure regulating mechanism; Wherein, each of the adsorption tubes (506) is slidably arranged on the positioning ring (505), and the clamping module (4) also includes a driving unit, which is used to drive each of the adsorption tubes (506) on the positioning ring (505) to synchronously move toward or away from the ring center end.

4. A drawing and pultrusion process for processing glass fiber reinforced plastic products according to claim 3, characterized in that: A support frame (301) is provided on one side of the positioning ring (505), the positioning ring (505) is fixed to the support frame (301) via a plurality of groups of connecting seats (510), and the support frames (301) on both sides are fixed via connecting plates (302).

5. A drawing and pultrusion process for processing glass fiber reinforced plastic products according to claim 4, characterized in that: The driving part comprises a driving seat (508) fixedly arranged on the adsorption tube (506); an annular plate (5) is rotatably arranged on one side of the positioning ring (505); four groups of arc grooves (502) are arranged on the annular plate (5) in a circumferential array; the arc grooves (502) extend from the proximal end to the distal end; a pin shaft (503) fixedly connected to the driving seat (508) is slidably embedded in the arc groove (502); an annular tooth (501) is fixedly arranged on the outer edge surface of the annular plate (5); a baffle (303) is fixedly arranged on the bottom of the connecting plate (302) on one side; a guide rod (405) is slidably arranged on the bottom of the baffle (303); an end of the guide rod (405) is fixed to the adjusting plate (304); racks (305) meshing with the annular tooth (501) are symmetrically fixedly arranged at both ends of the adjusting plate (304); and a spring (406) is arranged on the guide rod (405).

6. A drawing and pultrusion process for processing glass fiber reinforced plastic products according to claim 5, characterized in that: A bottom plate (2) is fixedly arranged on one side of the base (102), and an inclined guide plate (407) is fixedly arranged on the bottom plate (2); A straight guide plate (401) is fixedly arranged on one side of the inclined guide plate (407), a movable plate (403) is rotatably arranged on one end of the straight guide plate (401) close to the inclined guide plate (407), the movable plate (403) is rotatably connected to the straight guide plate (401) via a rotating shaft (408), a torsion spring is provided on the rotating shaft (408), an adjusting rod (404) is fixedly arranged on one end of the adjusting plate (304) away from the guide rod (405), and a guide wheel (402) is rotatably arranged at the bottom of the end of the adjusting rod (404).

7. The drawing and pultrusion process for processing glass fiber reinforced plastic products according to claim 4, characterized in that: The reciprocating member (3) comprises a limit plate (201) fixedly arranged on the bottom plate (2), a screw rod (203) being rotatably arranged on one side of the limit plate (201), an end of the screw rod (203) being fixed to an output end of a driving motor (202), and a nut (204) for driving the connecting plate (302) to move being spirally sleeved on the screw rod (203).

8. The drawing and pultrusion process for processing glass fiber reinforced plastic products according to claim 7, characterized in that: The air pressure regulating mechanism comprises a driving box (206) fixed to one side of the baffle (303), a guide groove (207) communicating with the interior is provided on one side of the driving box (206), a piston (211) is slidably arranged in the driving box (206), the piston (211) is fixed to a push seat (209) via a push rod (210), the push seat (209) is fixed via a support shaft (205) and a nut (204), and the piston (211) is enclosed with the box wall to form An air cavity (212), an annular air pipe (504) is arranged outside the positioning ring (505), the adsorption tube (506) is connected to the annular air pipe (504) through a telescopic tube, the annular air pipe (504) is fixed to one side of the support frame (301), the annular air pipes (504) on both sides are connected through a first air pipe (509), one side of the air cavity (212) is connected to a second air pipe (208), and the second air pipe (208) is connected to the first air pipe (509).

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