Pultrusion die
By designing adjustable pultrusion dies, the problem of difficult to fine-tune traditional dies is solved, more precise dimensional control and production line flexibility are achieved, and production costs are reduced.
Patent Information
- Application Number
- CN202421689513.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-16
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-07-16
AI Technical Summary
The traditional pultrusion die structure is fixed and difficult to fine-tune, resulting in frequent mold replacement when processing materials of different thicknesses or widths, increasing production costs and downtime.
A pultrusion die including a pultrusion die and an adjustment assembly is designed to achieve more precise dimensional control by accurately adjusting the relative position between the pultrusion die and the pultrusion die, and provide self-locking characteristics through the transmission method of the worm and the worm gear to ensure the stability of the mold clearance.
It realizes more precise dimensional control, facilitates fine-tuning of sizes, allows the production of different specifications of products on the same equipment, improves the flexibility and adaptability of the production line, reduces processing errors, and reduces production costs.
Smart Images

Figure CN223030145U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pultrusion dies, in particular to a pultrusion die. Background Art
[0002] Pultrusion is a process for continuously producing composite profiles. In this process, a resin matrix and reinforcing fibers are pulled through a heated die to form a long strip product with a fixed cross-section. The pultrusion die is a key component in this process, and its design and performance directly affect the quality and dimensional accuracy of the final product.
[0003] Traditional pultrusion dies often adopt a fixed structure. Once the die gap is set, it is difficult to make fine adjustments, which leads to frequent die changes when processing materials with different thicknesses or widths, increasing production costs and downtime. Summary of the Utility Model
[0004] To solve the above technical problems, the utility model provides a pultrusion die with strong adaptability and reduced production costs.
[0005] A pultrusion die of the utility model includes:
[0006] A pultrusion moving die and an adjusting component. Fixed parts are symmetrically arranged at both ends of the pultrusion moving die. A threaded column is arranged in the inner hole of the fixed part. The threaded column is arranged inside the transmission part shaft cavity. The transmission part is arranged in the inner hole of the connecting part. Two groups of connecting parts are symmetrically arranged at both ends of the pultrusion fixed die. The pultrusion moving die is slidably arranged in the inner cavity of the pultrusion fixed die. The adjusting component is arranged on the pultrusion fixed die and is used to adjust the connection position between the pultrusion moving die and the pultrusion fixed die;
[0007] A fixing component. The pultrusion fixed die is arranged on the fixing component, and the fixing component is used for the stable installation of the pultrusion fixed die.
[0008] Furthermore, inclined chamfers are arranged at the feeding ports of the pultrusion moving die and the pultrusion fixed die.
[0009] Preferably, the adjusting component includes a support part arranged on the pultrusion fixed die. A transmission shaft is arranged inside the shaft cavity of the support part. Worms are coaxially arranged at both ends of the transmission shaft. A worm gear is coaxially arranged on the transmission part. The worm is meshed with the worm gear on the same side for transmission connection.
[0010] Furthermore, the fixing component includes two groups of telescopic rods respectively arranged at both ends of the pultrusion fixed die. The telescopic rods are slidably arranged inside the cavity of the telescopic tube. A threaded rod is arranged at the through hole of the telescopic tube. The threaded rod is arranged inside the threaded hole of the telescopic rod. Multiple groups of telescopic tubes are all arranged on the support component.
[0011] Preferably, the support component includes auxiliary parts respectively arranged on two groups of telescopic tubes on the same side. The two groups of auxiliary parts are arranged on the installation base.
[0012] Further, a driven sprocket is coaxially arranged on the threaded rod, an auxiliary part positioning hole is arranged on the driving shaft, a driving sprocket is coaxially arranged on the driving shaft, and chains are arranged on the driving sprocket and the two groups of driven sprockets.
[0013] Preferably, an adjusting wheel is coaxially arranged on the driving shaft.
[0014] Further, an isolating part is arranged on the auxiliary part, and the chain is arranged inside the protection cavity of the isolating part.
[0015] Preferably, an extension part is coaxially arranged on the transmission shaft, and an adjusting disc is coaxially arranged on the extension part.
[0016] Further, a stabilizing part is arranged on the auxiliary part, and the extension part is arranged in the positioning hole of the stabilizing part.
[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows: By precisely adjusting the relative position between the pultrusion moving die and the pultrusion fixed die, more accurate dimension control can be achieved, which is convenient for dimension fine-tuning. At the same time, the adjustable distance between the pultrusion moving die and the pultrusion fixed die allows different specifications of products to be produced on the same equipment, improving the flexibility and adaptability of the production line. The fixing component ensures the stability of the pultrusion fixed die during the working process, reduces the processing errors caused by vibration or external interference, has strong adaptability, and reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is the front view structural schematic diagram of the present utility model;
[0019] Figure 2 is the axonometric structural schematic diagram of the present utility model;
[0020] Figure 3 is the bottom view structural schematic diagram of the present utility model;
[0021] Figure 4 is the partial structural schematic diagram of the present utility model;
[0022] Reference numerals in the drawings: 1. Pultrusion moving die; 2. Fixing part; 3. Threaded column; 4. Transmission part; 5. Connecting part; 6. Pultrusion fixed die; 7. Supporting part; 8. Transmission shaft; 9. Worm; 10. Worm gear; 11. Telescopic rod; 12. Telescopic tube; 13. Threaded rod; 14. Auxiliary part; 15. Installation base; 16. Driven sprocket; 17. Driving shaft; 18. Driving sprocket; 19. Chain; 20. Adjusting wheel; 21. Isolating part; 22. Extension part; 23. Adjusting disc; 24. Stabilizing part. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0023] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0024] like Figures 1 to 4 As shown, a pultrusion die of the utility model comprises:
[0025] A pultrusion movable die 1 and an adjustment component, wherein fixing parts 2 are symmetrically arranged at both ends of the pultrusion movable die 1, a threaded column 3 is arranged in the inner hole of the fixing part 2, a transmission part 4 is arranged inside the shaft cavity of the threaded column 3, the transmission part 4 is arranged in the inner hole of the connecting part 5, two groups of connecting parts 5 are symmetrically arranged at both ends of the pultrusion fixed die 6, the pultrusion movable die 1 is slidably arranged in the inner cavity of the pultrusion fixed die 6, the adjustment component is arranged on the pultrusion fixed die 6, and the adjustment component is used to adjust the connection position of the pultrusion movable die 1 and the pultrusion fixed die 6;
[0026] The fixed component, the pultrusion fixed die 6 is arranged on the fixed component, and the fixed component is used for the stable installation of the pultrusion fixed die 6; by accurately adjusting the relative position between the pultrusion movable die 1 and the pultrusion fixed die 6, more accurate size control can be achieved, which is convenient for size fine-tuning. At the same time, the adjustable distance between the pultrusion movable die 1 and the pultrusion fixed die 6 allows the production of products of different specifications on the same equipment, which improves the flexibility and adaptability of the production line. The fixed component ensures the stability of the pultrusion fixed die 6 during the working process, reduces the processing errors caused by vibration or external interference, has strong adaptability, and reduces production costs.
[0027] like Figures 1 to 4 As shown, as a preferred solution, inclined chamfers are provided at the feed ports of the pultrusion movable die 1 and the pultrusion fixed die 6; the design of the inclined chamfers can reduce the resistance of the material when entering the mold, promote the material to flow into the mold more smoothly, avoid material accumulation and blockage, and ensure the continuity and stability of the processing process. When the material enters the mold, due to the guiding effect of the chamfer, air entrainment can be reduced, and defects such as bubbles and depressions on the product surface can be avoided, thereby improving the appearance quality and mechanical properties of the finished product.
[0028] like Figures 1 to 4 As shown, as a preferred solution, the adjustment component includes a support member 7 arranged on the pultrusion fixed die 6, a transmission shaft 8 is arranged inside the axial cavity of the support member 7, both ends of the transmission shaft 8 are coaxially arranged on the worm 9, a worm wheel 10 is coaxially arranged on the transmission member 4, and the worm 9 is meshingly connected with the worm wheel 10 on the same side; through the precise meshing of the worm 9 and the worm wheel 10, the adjustment component can adjust the gap between the pultrusion movable die 1 and the pultrusion fixed die 6, allowing the production of products of different specifications on the same equipment, the transmission mode of the worm and the worm wheel provides a good self-locking characteristic, even if encountering external vibration or impact during the processing process, the mold gap can be kept stable, the product size deviation can be reduced, and the two groups of worms 9 on the transmission shaft 8 are supported by the support member 7.
[0029] As Figures 1 to 4 shown, as a preferred solution, the fixing component includes two groups of telescopic rods 11 respectively arranged at both ends of the pultrusion fixed mold 6. The telescopic rods 11 are slidably arranged inside the cavity of the telescopic tube 12. A threaded rod 13 is arranged at the through hole of the telescopic tube 12, and the threaded rod 13 is arranged inside the threaded hole of the telescopic rod 11. Multiple groups of telescopic tubes 12 are all arranged on the support component. The support component includes auxiliary parts 14 respectively arranged on two groups of telescopic tubes 12 on the same side, and the two groups of auxiliary parts 14 are arranged on the mounting base 15; the cooperation between the auxiliary parts 14 and the mounting base 15 not only provides additional support, but also simplifies the position calibration process of the mold, ensures that the mold is quickly and accurately positioned on the production line, reduces the downtime. Through the combination of the telescopic rod 11 and the telescopic tube 12, the pultrusion moving mold 1 and the pultrusion fixed mold 6 are slidably supported in the middle of the two groups of auxiliary parts 14. Through the cooperation of the threaded rod 13 and the telescopic rod 11, the connection position of the telescopic rod 11 and the telescopic tube 12 is locked. By rotating the threaded rod 13, the pultrusion moving mold 1 and the pultrusion fixed mold 6 are adjusted to the middle position between the two groups of auxiliary parts 14.
[0030] As Figures 1 to 4 shown, as a preferred solution, a driven sprocket 16 is coaxially arranged on the threaded rod 13, a drive shaft 17 is arranged in the positioning hole of the auxiliary part 14, a driving sprocket 18 is coaxially arranged on the drive shaft 17, chains 19 are arranged on the driving sprocket 18 and the two groups of driven sprockets 16, an adjusting wheel 20 is coaxially arranged on the drive shaft 17, an isolating part 21 is arranged on the auxiliary part 14, and the chain 19 is arranged inside the protection cavity of the isolating part 21; through the connection of the chain 19 between the driving sprocket 18 and the driven sprocket 16, the synchronous rotation of the threaded rod 13 is ensured, so as to realize the position of the pultrusion moving mold 1 and the pultrusion fixed mold 6 between the two groups of auxiliary parts 14. The design of the isolating part 21 protects the chain 19 from external impurities and reduces wear. The setting of the adjusting wheel 20 enables the operator to easily control the whole adjusting process.
[0031] As Figures 1 to 4 shown, as a preferred solution, an extension part 22 is coaxially arranged on the transmission shaft 8, an adjusting disk 23 is coaxially arranged on the extension part 22, a stabilizing part 24 is arranged on the auxiliary part 14, and the extension part 22 is arranged in the positioning hole of the stabilizing part 24; the introduction of the adjusting disk 23 enables the operator to directly drive the transmission shaft 8 and the worm 9 thereon to rotate by simply turning the handle. The cooperation between the stabilizing part 24 and the extension part 22 ensures the stability of the adjusting disk 23 during the operation process, and reduces the risk of deviation or damage of the transmission shaft 8 caused by improper operation.
[0032] As Figures 1 to 4 shown, as a preferred solution, its working process is as follows:
[0033] The pultrusion fixed die 6 is fixed on the mounting base 15 through the combination of the telescopic rod 11 and the telescopic tube 12. The auxiliary member 14 provides additional support to ensure the stability of the die. When adjustment is required at the middle position between the two groups of auxiliary members 14, the adjusting wheel 20 is used to rotate the drive shaft 17. Through the chain 19 transmission of the driving sprocket 18 and the driven sprocket 16, the threaded rod 13 is synchronously driven to rotate. By adjusting the cooperation between the threaded rod 13 and the telescopic rod 11, the position of the die on the auxiliary member 14 is adjusted to meet specific processing requirements. When the distance between the pultrusion moving die 1 and the pultrusion fixed die 6 needs to be adjusted, the adjusting disk 23 is rotated. Through the cooperation of the extension member 22 and the stabilizing member 24, the transmission shaft 8 is driven to rotate. The transmission shaft 8 drives the worms 9 at both ends to rotate, which meshes with the worm wheels 10 to further precisely adjust the position of the pultrusion moving die 1 to ensure the final fine adjustment of the die gap. The material is guided through the inclined chamfer and smoothly enters the gap between the pultrusion moving die 1 and the pultrusion fixed die 6.
[0034] For a pultrusion die of the present utility model, its installation method, connection method or setting method are all common mechanical methods, and any implementation that can achieve its beneficial effects is acceptable.
[0035] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.
Claims
1. A pultrusion die, characterized in that: include: A pultrusion movable die and an adjustment component, wherein fixing parts are symmetrically arranged at both ends of the pultrusion movable die, a threaded column is arranged in the inner hole of the fixing part, the threaded column is arranged inside the shaft cavity of the transmission part, the transmission part is arranged in the inner hole of the connecting part, two groups of the connecting parts are symmetrically arranged at both ends of the pultrusion fixed die, the pultrusion movable die is slidably arranged in the inner cavity of the pultrusion fixed die, the adjustment component is arranged on the pultrusion fixed die, and the adjustment component is used to adjust the connection position of the pultrusion movable die and the pultrusion fixed die; A fixing component, the pultrusion fixed die is arranged on the fixing component, and the fixing component is used for stable installation of the pultrusion fixed die.
2. A pultrusion die according to claim 1, characterized in that: The feed inlets of the pultrusion movable die and the pultrusion fixed die are provided with inclined chamfers.
3. A pultrusion die according to claim 1, characterized in that: The adjustment component includes a support member arranged on the pultrusion fixed die, a transmission shaft is arranged inside the shaft cavity of the support member, two ends of the transmission shaft are coaxially arranged on a worm respectively, a worm wheel is coaxially arranged on the transmission member, and the worm is meshingly connected with the worm wheel on the same side.
4. A pultrusion die as claimed in claim 3, characterized in that: An extension piece is coaxially arranged on the transmission shaft, and the extension piece is coaxially arranged on the adjustment disk.
5. A pultrusion die according to claim 1, characterized in that: The fixing assembly includes two groups of telescopic rods respectively arranged at both ends of the pultrusion fixed die, the telescopic rods are slidably arranged inside the telescopic tube groove cavity, a threaded rod is arranged at the through hole of the telescopic tube, and the threaded rod is arranged inside the threaded hole of the telescopic rod, and multiple groups of telescopic tubes are arranged on the supporting assembly.
6. A pultrusion die as claimed in claim 5, characterized in that: The support assembly comprises auxiliary parts respectively arranged on two groups of telescopic tubes on the same side, and the two groups of auxiliary parts are arranged on a mounting base.
7. A pultrusion die according to claim 6, characterized in that: The threaded rod is coaxially provided with a driven sprocket, the auxiliary component positioning hole is provided with a driving shaft, the driving shaft is coaxially provided with a driving sprocket, and the driving sprocket and the two sets of driven sprockets are provided with chains.
8. A pultrusion die according to claim 7, characterized in that: An adjusting wheel is coaxially arranged on the driving shaft.
9. A pultrusion die as claimed in claim 7, characterized in that: An isolation piece is arranged on the auxiliary piece, and the chain is arranged inside a protection cavity of the isolation piece.
10. A pultrusion die according to claim 6, characterized in that: A stabilizing member is arranged on the auxiliary member, and an extending member is arranged in the positioning hole of the stabilizing member.