Pultrusion Preforming Die Device

Abstract

This utility model relates to a pultrusion preforming mold device, belonging to the field of composite material pultrusion molding technology. It includes a left support frame and a right support frame, with a mold connecting frame at the front of the left and right support frames. The mold is installed at the front of the mold connecting frame, and a mold inlet is located at the rear of the mold. A front preforming plate and a rear preforming plate are arranged parallel to each other between the left and right support frames. The front preforming plate has three parallel front preforming openings machined in the middle, and two circular front yarn guide holes machined on both sides of the front preforming openings. The rear preforming plate has four parallel rear preforming openings machined in the middle, and two circular rear yarn guide holes machined on both sides of the rear preforming openings. A left yarn guide roller and a right yarn guide roller are fixed on the mold connecting frame behind the mold inlet. The left and right yarn guide rollers are located on the left and right sides of the mold inlet, and the distance between the left and right yarn guide rollers is greater than the width of the mold inlet.

Description

Technical Field

[0001] This utility model relates to the field of composite material pultrusion molding technology, and more specifically to a pultrusion molding preforming die device. Background Technology

[0002] As is well known, in the pultrusion molding process of composite materials, the preform die is a key component. Existing pultrusion dies often suffer from resin accumulation at the inlet chamfer. Resin accumulation not only affects the molding quality of the product, leading to uneven surface, reduced dimensional accuracy, and the need for frequent cleaning of the die opening, but also causes other problems. Summary of the Invention

[0003] To overcome the shortcomings of the existing technology, this utility model provides a pultrusion preforming mold device, which effectively solves the problem of resin accumulation at the chamfer of the inlet of the existing pultrusion mold and improves the molding quality of the product.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a pultrusion preforming mold device, which is provided with a left support frame and a right support frame, a mold connecting frame is provided at the front of the left support frame and the right support frame, the mold is installed at the front of the mold connecting frame, and a mold inlet is provided at the rear of the mold. The characteristic is that a front preforming plate and a rear preforming plate are arranged in parallel between the left support frame and the right support frame. The front preforming plate has three parallel front preforming openings processed in the middle, and two circular front yarn guide holes are processed on both sides of the front preforming openings. The rear preforming plate has four parallel rear preforming openings processed in the middle, and two circular rear yarn guide holes are processed on both sides of the rear preforming openings. A left yarn guide roller and a right yarn guide roller are fixed on the mold connecting frame behind the mold inlet. The left yarn guide roller and the right yarn guide roller are located on the left and right sides of the mold inlet, and the distance between the left yarn guide roller and the right yarn guide roller is greater than the width of the mold inlet.

[0005] The beneficial effects of this invention are that by effectively solving the problem of resin accumulation, the surface becomes smoother, the dimensional accuracy is higher, and the product qualification rate and quality are improved. Attached Figure Description

[0006] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0007] Figure 1 This is a schematic diagram of the structure of the present invention.

[0008] Figure 2 This is a schematic diagram of the structure of the pre-formed plate of this utility model.

[0009] Figure 3 This is a schematic diagram of the pre-formed plate structure of this utility model.

[0010] In the diagram: 1. Left support frame, 2. Right support frame, 3. Rear preforming plate, 4. Front preforming plate, 5. Separating roller, 6. Mold connecting frame, 7. Left guide yarn separating roller, 8. Right guide yarn separating roller, 9. Mold, 10. Front preforming opening, 11. Front guide yarn hole, 12. Rear preforming opening, 13. Rear guide yarn hole, 14. Mold entrance, 15. Yarn. Detailed Implementation

[0011] In the figure, this utility model is provided with a left support frame 1 and a right support frame 2. A mold connecting frame 6 is provided at the front of the left support frame 1 and the right support frame 2. A mold 9 is installed at the front of the mold connecting frame 6. A mold inlet 14 is provided at the rear of the mold 9. A front preforming plate 4 and a rear preforming plate 3 are arranged parallel to each other between the left support frame 1 and the right support frame 2. Three parallel front preforming openings 10 are processed in the middle of the front preforming plate 4. Two circular front yarn guide holes 11 are processed on both sides of the front preforming openings 10. Four parallel rear preforming openings 12 are processed in the middle of the rear preforming plate 3. Two circular rear yarn guide holes 13 are processed on both sides of the rear preforming openings 12. A left yarn guide roller 7 and a right yarn guide roller 8 are fixed on the mold connecting frame 6 behind the mold inlet 14. The left guide roller 7 and the right guide roller 8 are located on the left and right sides of the mold inlet 14, and the distance between the left guide roller 7 and the right guide roller 8 is greater than the width of the mold inlet 14. After the yarn 15 passes through the two rear guide holes 13 and the front guide hole 11, it is guided by the left guide roller 7 and the right guide roller 8 and enters the mold 9 from the left and right sides of the mold inlet 14. The yarn 15 enters the mold 9 at an angle that fits the chamfer of the mold opening, bringing the resin accumulated in the mold inlet 14 into the mold 9, avoiding the accumulation of resin at the chamfer of the mold inlet 14, reducing quality problems caused by cleaning the mold opening, and improving production efficiency. After passing through the two front preforming plates 4 and the rear preforming plates 3, the fibers enter the mold after forming.

Claims

1. A pultrusion preforming die device, comprising a left support frame and a right support frame, a die connecting frame at the front of the left and right support frames, a die mounted at the front of the die connecting frame, and a die inlet at the rear of the die, characterized in that... A front preforming plate and a rear preforming plate are arranged parallel to each other between the left support frame and the right support frame. The front preforming plate has three parallel front preforming openings in the middle, and two circular front yarn guide holes are processed on both sides of the front preforming openings. The rear preforming plate has four parallel rear preforming openings in the middle, and two circular rear yarn guide holes are processed on both sides of the rear preforming openings. A left yarn guide roller and a right yarn guide roller are fixed on the mold connecting frame behind the mold entrance. The left yarn guide roller and the right yarn guide roller are located on the left and right sides of the mold entrance, and the distance between the left yarn guide roller and the right yarn guide roller is greater than the width of the mold entrance.

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