Pultrusion equipment and process for glass fiber reinforced plastic production

Abstract

The invention is applicable to the technical field of glass fiber reinforced plastic production, and provides pultrusion equipment and process for glass fiber reinforced plastic production, the pultrusion equipment for glass fiber reinforced plastic production comprises a workbench and a processing module arranged on the workbench, a base is further erected on the workbench, and the base is located behind a pultrusion mechanism; the measuring mechanism is arranged on the base and comprises a limiting type measuring assembly, a movable type measuring frame and a length limiting assembly, the movable type measuring frame is installed on the base in a sliding mode, a graduated scale is arranged on the movable type measuring frame, and the limiting type measuring assembly and the length limiting assembly are both arranged on the movable type measuring frame; and the linkage type cutting assembly is used for cutting the glass fiber reinforced plastic and enabling the movable measuring frame to synchronously move along with the glass fiber reinforced plastic. Through cooperative arrangement of the measuring mechanism and the linkage type cutting assembly, the problems that at present, the cutting operation efficiency is low, errors are prone to occurring in manual measurement, and the production quality of glass fiber reinforced plastic is affected are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of glass fiber reinforced plastic production, in particular to pultrusion equipment and a process for producing glass fiber reinforced plastic. Background Art

[0002] FRP, a glass fiber reinforced plastic, boasts excellent strength, corrosion resistance, and lightweight properties derived from the composite of glass fiber and resin. It is widely used in aerospace, automotive, construction, shipbuilding, and chemical industries. Pultrusion equipment plays a crucial role in FRP production, with its performance directly impacting the quality and production efficiency of FRP products. Currently, the operating principles of FRP pultrusion equipment on the market are largely the same. First, glass yarn is drawn from a creel, passed through a yarn plate, and then into a glue tank for impregnation with resin. It then enters a thermoforming unit, where the impregnated glass yarn is heated and solidified. A traction unit then compresses the yarn and conveys it to a cutting unit, where it is cut into the desired length.

[0003] However, currently, most cutting operations are done manually, where workers manually measure the length before cutting. This is inefficient and prone to errors, which can affect the quality of FRP production. Therefore, in response to the above situation, there is an urgent need to provide a pultrusion equipment and process for FRP production to overcome the shortcomings of current practical applications. Summary of the Invention

[0004] The object of the present invention is to provide a pultrusion device and process for producing glass fiber reinforced plastics, aiming to solve the problems in the above-mentioned background technology.

[0005] The present invention is achieved by providing a pultrusion device for producing glass fiber reinforced plastics, comprising: A workbench and a processing module disposed on the workbench, the processing module including a discharge mechanism for releasing glass yarn, an impregnation mechanism for impregnating the glass yarn, a heating and forming mechanism for drying the glass yarn impregnated with resin glue, and a pultrusion mechanism for compacting and transporting the solidified glass fiber reinforced plastic. The workbench is also provided with a base located behind the pultrusion mechanism. A measuring mechanism is provided on the base, the measuring mechanism including a position-limiting measuring component, a movable measuring frame, and a length-limiting component. The movable measuring frame is slidably mounted on the base and is equipped with a scale. The position-limiting measuring component and the length-limiting component are both provided on the movable measuring frame. And a linkage cutting component for cutting the glass fiber reinforced plastics and making the movable measuring frame move synchronously with the glass fiber reinforced plastics.

[0006] As a further solution of the present invention: the bottom of the base is a hollow structure.

[0007] As a further solution of the present invention: a strip hole is opened in the middle of the base, and a discharge plate is arranged in the strip hole. The discharge plate is connected to the base through an axis rotation at one end close to the processing module, and a motor three is arranged in the base to drive the axis rotation.

[0008] As a further solution of the present invention: a guide groove is further provided on the base, and a transverse return spring for pressing the movable measuring frame toward one side of the processing module is further provided in the guide groove.

[0009] As a further solution of the present invention: the length limiting component includes: A limit block, wherein the limit block is slidably installed in the movable measuring frame; and a fixing screw, wherein the limit block is provided with a through internal threaded hole threadedly connected to the fixing screw.

[0010] As a further solution of the present invention: the limit measuring assembly includes: A control box, wherein the control box is fixedly installed in the mobile measurement frame; A translation slider slidably mounted in the mobile measuring frame, wherein a measuring plate for pressing the fiberglass reinforced plastic is fixedly mounted on the translation slider; And a control component for adjusting the working state of the translation slider.

[0011] As a further solution of the present invention: the control component includes: A support shaft is rotatably mounted in the control box, wherein a winding roller and a driven member are fixedly mounted on the support shaft; A traction member, one end of which is wound around the winding roller and the other end of which is fixedly connected to the translation slider; A support frame slidably mounted in the control box, wherein the control box is provided with a telescopic member for driving the support frame to move; And a motor 1 is arranged on the support frame, and a driving member for driving the driven member to rotate is arranged on the output shaft of the motor 1.

[0012] As a further solution of the present invention: the linked cutting assembly includes: An L-shaped support plate fixedly mounted on the mobile measuring frame, a lifting plate slidably mounted on the L-shaped support plate, and a cutting piece is provided at the bottom of the lifting plate; The lifting plate is provided with an internal threaded hole for threaded connection with the screw rod, and the mobile measuring frame is also provided with a second motor for driving the screw rod to rotate.

[0013] As a further solution of the present invention: the linkage cutting assembly further includes: Slide rods slidably mounted on the lifting plate, wherein the slide rods are provided in multiple groups, and one end of each group of slide rods is provided with a stopper; A pressing piece for fixing the fiberglass reinforced plastic, wherein the pressing piece is connected to the other end of the plurality of sliding rods; and a longitudinal return spring for elastically supporting the stopper, wherein the longitudinal return spring is sleeved on the slide rod.

[0014] A pultrusion process for producing glass fiber reinforced plastics, using the pultrusion equipment for producing glass fiber reinforced plastics as described above, comprises the following steps: Step 1: The glass yarn is drawn out from the feeding mechanism and enters the impregnation mechanism to be impregnated with resin glue, and then enters the heating and forming mechanism. In the heating and forming mechanism, the impregnated glass yarn is heated and solidified into shape, and then it is compacted by the pultrusion mechanism and transported to the base; Step 2: Refer to the scale on the movable measuring frame and move the length limit component to the specified position in advance according to production requirements; Step 3: Use the limited measuring component and the length limiting component to measure the length of the formed fiberglass; Step 4: Using the linkage cutting assembly, the movable measuring frame can follow the movement of the fiberglass during length measurement, and the fiberglass can be cut.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The glass yarn is drawn out by the feeding mechanism and enters the impregnation mechanism to be impregnated with resin glue, and then enters the heating and forming mechanism. In the heating and forming mechanism, the impregnated glass yarn is heated and solidified into shape, and then it is compacted by the pultrusion mechanism and conveyed to the base, and finally cut into products of the required length. Specifically, referring to the scale on the movable measuring frame and in accordance with production requirements, the length limiting component is moved to the specified position in advance; the length of the formed glass fiber reinforced plastic is measured by the coordination setting of the limit measuring component and the length limiting component; the linked cutting component can make the movable measuring frame follow the movement of the glass fiber reinforced plastic during the length measurement, and realize the cutting process of the glass fiber reinforced plastic; The present invention avoids the problems of low cutting efficiency and easy error in manual measurement, which affect the production quality of glass fiber reinforced plastics, by coordinating the measuring mechanism with the linked cutting assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a structural schematic diagram of the present invention.

[0018] Figure 2 It is a schematic diagram of the local structure of the present invention Figure 1 .

[0019] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0020] Figure 4 It is a schematic diagram of the local structure of the present invention Figure 2 .

[0021] Figure 5 It is a structural diagram of the limit-type measurement component in the present invention.

[0022] Figure 6 Schematic diagram of the internal structure of the control box in the present invention.

[0023] Figure 7 It is a structural schematic diagram of the linkage cutting assembly in the present invention.

[0024] In the accompanying drawings: 1-base, 2-lateral return spring, 3-mobile measuring frame, 4-measuring plate, 5-L-shaped support plate, 6-cutting piece, 7-lifting plate, 8-translational slider, 9-discharge plate, 10-fixing screw, 11-limiting block, 12-pressing piece, 13-guide groove, 14-control box, 15-screw, 16-traction piece, 17-driving piece, 18-motor 1, 19-support frame, 20-winding roller, 21-driven piece, 22-telescopic piece, 23-support shaft, 24-stop block, 25-longitudinal return spring, 26-slide rod, 27-motor 2, 28-processing module, 29-workbench. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0028] The present invention will be further explained below with reference to specific embodiments.

[0029] See also Figure 1-Figure 7 The embodiment of the present invention provides a pultrusion device for producing glass fiber reinforced plastics, comprising: A workbench 29 and a processing module 28 disposed on the workbench 29, the processing module 28 including a discharge mechanism for releasing glass yarn, an impregnation mechanism for impregnating the glass yarn, a heat-forming mechanism for drying the glass yarn impregnated with resin glue, and a pultrusion mechanism for compacting and transporting the solidified glass fiber reinforced plastic. The workbench 29 is also provided with a base 1, which is located behind the pultrusion mechanism. The discharge mechanism, impregnation mechanism, heat-forming mechanism, and pultrusion mechanism are sequentially installed on the production line, and the discharge mechanism, impregnation mechanism, heat-forming mechanism, and pultrusion mechanism can adopt existing public technologies. A measuring mechanism is provided on the base 1, comprising a position-limiting measuring assembly, a movable measuring frame 3, and a length limiting assembly. The movable measuring frame 3 is slidably mounted on the base 1 and is equipped with a scale. Both the position-limiting measuring assembly and the length limiting assembly are provided on the movable measuring frame 3. The initial position of the position-limiting measuring assembly is located at the starting end of the scale on the movable measuring frame 3. And a linkage cutting component for cutting the glass fiber reinforced plastic and making the movable measuring frame 3 move synchronously with the glass fiber reinforced plastic.

[0030] In an embodiment of the present invention, the pultrusion equipment for producing FRP is preferentially suitable for FRP with long strip structures, such as pipes, profiles, etc., specifically round tubes, square tubes, angle steels, I-beams, etc.; the glass yarn is drawn out by the discharge mechanism and enters the impregnation mechanism to be impregnated with resin glue, and then enters the heating and forming mechanism. In the heating and forming mechanism, the impregnated glass yarn is heated and solidified into shape, and then pressed by the pultrusion mechanism and conveyed to the base 1, and finally cut into products of the required length, specifically: referring to the scale on the movable measuring frame 3 and according to production requirements, the length limiting component is moved to the specified position in advance; the length of the formed FRP is measured by the cooperation setting of the limit measuring component and the length limiting component; the movable measuring frame 3 can be made to follow the movement of the FRP during length measurement by using the linkage cutting component, and the FRP can be cut; compared with the prior art, the present invention avoids the current low cutting efficiency and the problem that manual measurement is prone to errors, which affects the production quality of FRP, by coordinating the measuring mechanism with the linkage cutting component.

[0031] In one embodiment of the present invention, see Figure 1-Figure 7 , the bottom of the base 1 is a hollow structure; A strip-shaped hole is provided in the middle of the base 1, and a discharge plate 9 is provided in the strip-shaped hole. The end of the discharge plate 9 close to the processing module 28 is rotatably connected to the base 1 through an axis, and a motor 3 for driving the axis to rotate is provided in the base 1; The base 1 is further provided with a guide groove 13, and a transverse return spring 2 is provided in the guide groove 13 for pressing the movable measuring frame 3 toward the processing module 28. The length limitation component includes: A limit block 11 is slidably mounted in the movable measuring frame 3; and a fixing screw 10, wherein the limiting block 11 is provided with a through-type internal threaded hole threadedly connected to the fixing screw 10; The limit measuring assembly includes: A control box 14, which is fixedly installed in the mobile measurement frame 3; A translation slider 8 is slidably mounted in the movable measurement frame 3 , and a measurement plate 4 for pressing the fiberglass reinforced plastic is fixedly mounted on the translation slider 8 ; and a control assembly for adjusting the working state of the translation slider 8; The control component includes: A support shaft 23 is rotatably mounted in the control box 14, and a winding roller 20 and a driven member 21 are fixedly mounted on the support shaft 23. A damping bearing is provided at the connection between the support shaft 23 and the control box 14 to increase the rotational resistance of the support shaft 23, thereby making the movement of the translation slider 8 more stable under the traction of the traction member 16. A traction member 16, one end of which is wound around the winding roller 20, and the other end of which is fixedly connected to the translation slider 8; wherein the traction member 16 is a traction rope or a traction belt; A support frame 19 is slidably mounted in the control box 14 , wherein a telescopic member 22 is provided in the control box 14 for driving the support frame 19 to move; wherein the telescopic member 22 is an electric telescopic rod; And a motor 18 is arranged on a support frame 19, and a driving member 17 for driving a driven member 21 to rotate is arranged on the output shaft of the motor 18; wherein the driving member 17 and the driven member 21 can both be friction wheels.

[0032] In this embodiment, in the initial state, one side of the measuring plate 4 close to the control box 14 is aligned with the zero scale, and the limit block 11 is moved to the specified position. When the translation slider 8 is pressed to the side of the limit block 11 close to the processing module 28, the value at the scale pointed to by the limit block 11 close to the processing module 28 minus the thickness of the translation slider 8 is the length of the fiberglass reinforced plastic, wherein the side of the measuring plate 4 close to the processing module 28 is flush with the side of the translation slider 8 close to the processing module 28; by rotating the fixing screw 10, the bottom of the fixing screw 10 can be pressed into the movable measuring frame 3 to fix the limit block 11. When the fiberglass reinforced plastic moves to the base 1, it will push the measuring plate 4 to move toward the side of the limit block 11. At this time, the follower 21 and the driving member 17 are in a separated state. When the measuring plate 4 is pressed After being pressed onto the limit block 11, the length required for cutting is reached. Since the fiberglass is in a state of continuous motion, the movable measuring frame 3 will move with the fiberglass. When the translation slider 8 is pressed onto the limit block 11, the linked cutting assembly starts to work. After the cutting is completed, the discharge plate 9 will rotate to facilitate the discharge of the cut fiberglass. At this time, the transverse return spring 2 will push the movable measuring frame 3 to reset, and at the same time, the telescopic member 22 drives the support frame 19 to move, so that the driving member 17 is pressed onto the driven member 21, thereby using the driven member 21 to drive the support shaft 23 and the winding roller 20 to rotate, and the traction member 16 is wound, thereby pulling the translation slider 8 to reset. The movable measuring frame 3 can follow the movement of the fiberglass, which can effectively avoid the cutting work affecting the normal movement of the fiberglass, thereby improving production efficiency.

[0033] In one embodiment of the present invention, see Figure 1-Figure 7 , the linked cutting assembly includes: An L-shaped support plate 5 is fixedly mounted on the mobile measuring frame 3, a lifting plate 7 is slidably mounted on the L-shaped support plate 5, and a cutting member 6 is provided at the bottom of the lifting plate 7; wherein the cutting member 6 is a cutting machine, which can adopt existing public technology; and rotating the screw rod 15 mounted on the mobile measuring frame 3, the lifting plate 7 is provided with an internal threaded hole for threaded connection with the screw rod 15, and the mobile measuring frame 3 is further provided with a motor 27 for driving the screw rod 15 to rotate; The linked cutting assembly further comprises: Sliding rods 26 slidably mounted on the lifting plate 7, wherein the sliding rods 26 are provided in multiple groups, and one end of each group of sliding rods 26 is provided with a stopper 24; A pressing member 12 for fixing the fiberglass reinforced plastic, wherein the pressing member 12 is connected to the other end of the plurality of sliding rods 26; And a longitudinal return spring 25 for elastically supporting the stopper 24 , wherein the longitudinal return spring 25 is sleeved on the slide rod 26 .

[0034] In this embodiment, motor 27 can drive the lifting plate 7 to move downward by driving the screw rod 15 to rotate, so that the pressing piece 12 can be pressed onto the fiberglass to be cut. When the lifting plate 7 continues to move downward, the longitudinal return spring 25 is stretched, so that the cutting piece 6 can cut the fiberglass.

[0035] See also Figure 1-Figure 7 The embodiment of the present invention provides a pultrusion process for producing glass fiber reinforced plastics, which uses the pultrusion equipment for producing glass fiber reinforced plastics as described above. The process includes the following steps: Step 1: The glass yarn is drawn out from the feeding mechanism and enters the impregnation mechanism to be impregnated with the resin glue, and then enters the heating and forming mechanism. In the heating and forming mechanism, the impregnated glass yarn is heated and solidified, and then compressed by the pultrusion mechanism and transported to the base 1; Step 2: Refer to the scale on the movable measuring frame 3 and move the length limiting component to the specified position in advance according to production requirements; Step 3: Use the limited measuring component and the length limiting component to measure the length of the formed fiberglass; Step 4: Using the linkage cutting assembly, the movable measuring frame 3 can follow the movement of the fiberglass reinforced plastic during length measurement, and realize the cutting process of the fiberglass reinforced plastic.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pultrusion device for producing glass fiber reinforced plastics, comprising a workbench and a processing module disposed on the workbench, wherein the processing module comprises a discharge mechanism for releasing glass yarn, an impregnation mechanism for impregnating the glass yarn, a heating and forming mechanism for drying the glass yarn impregnated with resin glue, and a pultrusion mechanism for compacting and transporting the solidified glass fiber reinforced plastics, wherein a base is also provided on the workbench and is located behind the pultrusion mechanism, and wherein: Also includes: A measuring mechanism is provided on the base, the measuring mechanism including a position-limiting measuring component, a movable measuring frame, and a length-limiting component. The movable measuring frame is slidably mounted on the base and is equipped with a scale. The position-limiting measuring component and the length-limiting component are both provided on the movable measuring frame. And a linkage cutting component for cutting the glass fiber reinforced plastics and making the movable measuring frame move synchronously with the glass fiber reinforced plastics.

2. The pultrusion equipment for producing glass fiber reinforced plastics according to claim 1, characterized in that: The bottom of the base is a hollow structure.

3. The pultrusion equipment for producing glass fiber reinforced plastics according to claim 1, characterized in that: A strip hole is provided in the middle of the base, and a discharge plate is provided in the strip hole. The discharge plate is connected to the base through an axis rotation at one end close to the processing module, and a motor three for driving the axis rotation is provided in the base.

4. The pultrusion equipment for producing glass fiber reinforced plastics according to claim 1, characterized in that: A guide groove is also provided on the base, and a transverse return spring for pressing the movable measuring frame toward one side of the processing module is also provided in the guide groove.

5. The pultrusion equipment for producing glass fiber reinforced plastics according to claim 1, characterized in that: The length limitation component includes: A limit block, wherein the limit block is slidably installed in the movable measuring frame; and a fixing screw, wherein the limit block is provided with a through internal threaded hole threadedly connected to the fixing screw.

6. The pultrusion equipment for producing glass fiber reinforced plastics according to claim 1, characterized in that: The limit measuring assembly includes: A control box, wherein the control box is fixedly installed in the mobile measurement frame; A translation slider slidably mounted in the mobile measuring frame, wherein a measuring plate for pressing the fiberglass reinforced plastic is fixedly mounted on the translation slider; And a control component for adjusting the working state of the translation slider.

7. The pultrusion equipment for producing glass fiber reinforced plastics according to claim 6, characterized in that: The control component includes: A support shaft is rotatably mounted in the control box, wherein a winding roller and a driven member are fixedly mounted on the support shaft; A traction member, one end of which is wound around the winding roller and the other end of which is fixedly connected to the translation slider; A support frame slidably mounted in the control box, wherein the control box is provided with a telescopic member for driving the support frame to move; And a motor 1 is arranged on the support frame, and a driving member for driving the driven member to rotate is arranged on the output shaft of the motor 1.

8. The pultrusion equipment for producing glass fiber reinforced plastics according to claim 1, characterized in that: The linked cutting assembly comprises: An L-shaped support plate fixedly mounted on the mobile measuring frame, a lifting plate slidably mounted on the L-shaped support plate, and a cutting piece is provided at the bottom of the lifting plate; The lifting plate is provided with an internal threaded hole for threaded connection with the screw rod, and the mobile measuring frame is also provided with a second motor for driving the screw rod to rotate.

9. The pultrusion equipment for producing glass fiber reinforced plastics according to claim 8, characterized in that: The linked cutting assembly further comprises: Slide rods slidably mounted on the lifting plate, wherein the slide rods are provided in multiple groups, and one end of each group of slide rods is provided with a stopper; A pressing piece for fixing the fiberglass reinforced plastic, wherein the pressing piece is connected to the other end of the plurality of sliding rods; and a longitudinal return spring for elastically supporting the stopper, wherein the longitudinal return spring is sleeved on the slide rod.

10. A pultrusion process for producing glass fiber reinforced plastics, characterized in that: Using the pultrusion equipment for producing glass fiber reinforced plastics according to any one of claims 1 to 9, the process comprises the following steps: Step 1: The glass yarn is drawn out from the feeding mechanism and enters the impregnation mechanism to be impregnated with resin glue, and then enters the heating and forming mechanism. In the heating and forming mechanism, the impregnated glass yarn is heated and solidified into shape, and then it is compacted by the pultrusion mechanism and transported to the base; Step 2: Refer to the scale on the movable measuring frame and move the length limit component to the specified position in advance according to production requirements; Step 3: Use the limited measuring component and the length limiting component to measure the length of the formed fiberglass; Step 4: Using the linkage cutting assembly, the movable measuring frame can follow the movement of the fiberglass during length measurement, and the fiberglass can be cut.

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