Heating device for pultrusion die
By setting temperature measurement holes on the outer wall of the pultrusion die and setting temperature sensors on the heating tool, the problem of inaccurate temperature feedback in the pultrusion process is solved, and accurate measurement and heating control of the material temperature in the mold is achieved, ensuring the stability of product quality and improving operational safety.
Patent Information
- Application Number
- CN202420913386.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-04-29
AI Technical Summary
The temperature feedback in the existing pultrusion process is inaccurate, resulting in the product quality not meeting the demand, and the built-in heating pultrusion mold has problems such as increasing mold accumulation, high processing costs and safety hazards.
A heating device for pultruding mold is designed. By setting a temperature measuring hole on the outer wall of the mold, and a first heating block, a second heating block and a third heating block are provided on the inner wall of the heating tool, and a temperature sensor is fixedly arranged respectively to achieve accurate measurement and heating control of the material temperature in the mold.
It improves the accuracy of temperature measurement, solves the problem of inaccurate temperature feedback, ensures the stability of product quality, while reducing heat loss, saving energy, and improving safety at the operation site.
Smart Images
Figure CN222933395U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pultrusion process, in particular to a heating device for a pultrusion die. Background Art
[0002] At present, in the pultrusion process, temperature feedback mostly collects the temperature of the outer surface of the die, resulting in a certain temperature error, which causes the product quality to fail to meet the requirements. Or for the pultrusion die with internal heating, the internal heating makes the die volume significantly larger than that of the conventional pultrusion die, which is very unfavorable for the die layout in the actual use process, and the processing cost of the die with internal heating is much higher than that of the die and the heating tooling. Summary of the Utility Model
[0003] The utility model aims to solve at least one of the technical problems existing in the related art. For this purpose, the utility model provides a heating device for a pultrusion die, which realizes improving the accuracy of temperature measurement.
[0004] The utility model provides a heating device for a pultrusion die. The heating device for the pultrusion die includes: a pultrusion die and a heating tooling. The heating tooling is provided with a receiving space, the pultrusion die is arranged in the receiving space, a first heating block, a second heating block and a third heating block are arranged on the inner side wall of the heating tooling, temperature sensors are respectively and fixedly arranged at the first heating block, the second heating block and the third heating block, a temperature measuring hole is arranged on the outer side wall of the pultrusion die, the temperature sensors are embedded into the interior of the temperature measuring hole, and the temperature sensors are used for measuring the temperature of the material in the pultrusion die.
[0005] According to the heating device for a pultrusion die provided by the utility model, the heating tooling further includes an L-shaped plate, and the first heating block, the second heating block, the third heating block and the temperature sensors are fixedly arranged on the inner side wall of the L-shaped plate.
[0006] According to the heating device for a pultrusion die provided by the utility model, the receiving space is formed by overlapping two L-shaped plates.
[0007] According to the heating device for a pultrusion die provided by the utility model, the temperature measuring holes are arranged on both sides of the pultrusion die.
[0008] According to the heating device for a pultrusion die provided by the utility model, the temperature range of the first heating block is 110°C to 140°C, the temperature range of the second heating block is 150°C to 170°C, and the temperature range of the third heating block is 130°C to 150°C.
[0009] According to a heating device for a pultrusion die provided by the present utility model, a die cavity is arranged inside the pultrusion die, and the end of the temperature measurement hole is close to the die cavity.
[0010] According to a heating device for a pultrusion die provided by the present utility model, the temperature sensor adopts a thermocouple temperature sensor.
[0011] According to a heating device for a pultrusion die provided by the present utility model, the first heating block, the second heating block and the third heating block are all arranged in a serpentine layout.
[0012] One or more of the above technical solutions in the embodiments of the present utility model have at least one of the following technical effects:
[0013] According to the heating device for a pultrusion die in the embodiments of the present disclosure, by arranging a temperature measurement hole on the outer side wall of the pultrusion die and the temperature sensor cooperating with the temperature measurement hole, the problem of inaccurate temperature feedback is solved, the accuracy of the temperature is improved, and thus the quality of the product is guaranteed.
[0014] The additional aspects and advantages of the present utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the present utility model. Description of the Drawings
[0015] In order to more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0016] Figure 1 is a perspective view of the pultrusion die of the heating device for a pultrusion die provided by the present utility model.
[0017] Figure 2 is a perspective view of the heating tooling of the heating device for a pultrusion die provided by the present utility model.
[0018] Figure 3 is a perspective view of the heating device for a pultrusion die provided by the present utility model.
[0019] Figure 4 is a perspective view of the combined heating tooling of the heating device for a pultrusion die provided by the present utility model.
[0020] Reference Signs:
[0021] 1. Pultrusion die; 11. Temperature measurement hole; 12. Die cavity; 2. Heating tooling; 21. First heating block; 22. Second heating block; 23. Third heating block; 24. Temperature sensor; 3. Accommodating space. Detailed implementation manner
[0022] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions in the present utility model will be clearly and completely described below. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without making creative efforts fall within the protection scope of the present utility model. The following embodiments are used to illustrate the present utility model but cannot be used to limit the scope of the present utility model.
[0023] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the embodiments of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0024] In the description of the embodiments of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "coupled" 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 directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.
[0025] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.
[0026] In the related art, by feedback of the temperature of the outer surface of the mold, the measured temperature is inaccurate, which in turn affects the product quality. To solve this problem, a temperature measuring hole is provided on the outer side wall of the pultrusion mold, and the end of the temperature measuring hole is close to the mold cavity, which can improve the accuracy of temperature measurement and thus ensure the product quality.
[0027] In addition, in the prior art, the first heating block, the second heating block, and the third heating block are arranged in a three-section manner on the surface of the pultrusion mold, there are uncovered areas, resulting in energy loss, and there are too many cables around the mold, and the cables are piled up in one place, there are safety hazards. By integrating the first heating block, the second heating block, and the third heating block, the phenomenon of multiple sets of cables existing at the actual operation site when multiple sets of traditional heating toolings are used simultaneously is avoided, and the situation of possible eddy current effects when multiple sets of cables are used simultaneously is also avoided, improving the safety of the actual operation site.
[0028] Figure 1 is a perspective view of the pultrusion mold of the heating device for the pultrusion mold provided by the present utility model. Figure 2 is a perspective view of the heating tooling of the heating device for the pultrusion mold provided by the present utility model. Figure 3 is a perspective view of the heating device for the pultrusion mold provided by the present utility model. Figure 4 is a perspective view of the combined heating tooling of the heating device for the pultrusion mold provided by the present utility model.
[0029] The present utility model provides a heating device for a pultrusion mold 1, as Figures 1-4As shown in the figure, the heating device for the pultrusion die 1 includes: the pultrusion die 1 and the heating tooling 2. The heating tooling 2 is provided with a receiving space 3, and the pultrusion die 1 is arranged in the receiving space 3. A first heating block 21, a second heating block 22 and a third heating block 23 are arranged on the inner side wall of the heating tooling 2. Temperature sensors 24 are fixedly arranged at the positions of the first heating block 21, the second heating block 22 and the third heating block 23 respectively. A temperature measuring hole 11 is arranged on the outer side wall of the pultrusion die 1, and the temperature sensor 24 is embedded into the interior of the temperature measuring hole 11. The temperature sensor 24 is used to measure the temperature of the material in the pultrusion die 1.
[0030] In this embodiment, by arranging the temperature measuring hole 11 on the outer side wall of the pultrusion die 1 and matching the temperature sensor 24 with the temperature measuring hole 11, the temperature feedback directly feeds back the temperature near the product of the die, which can truly feedback the temperature of the pultrusion die 1 during actual pultrusion, solves the problem of inaccurate temperature feedback, realizes the improvement of temperature accuracy, thus ensuring the quality of the product. The receiving space 3 formed by the heating tooling 2 wraps the pultrusion die 1, effectively avoiding heat loss and saving energy.
[0031] According to some embodiments of the present invention, by fixing the first heating block 21, the second heating block 22 and the third heating block 23 on the inner side wall of the heating tooling 2, temperature zone control is realized. A temperature sensor 24 is arranged at each heating block. By using the temperature sensor 24 to measure the temperature inside the pultrusion die 1, the operator can accurately adjust the temperatures of the first heating block 21, the second heating block 22 and the third heating block 23, and at the same time, it can also avoid the existence of uncovered areas on the pultrusion die 1, resulting in heat dissipation, improving the product quality while reducing costs.
[0032] According to a heating device for the pultrusion die 1 provided by the present invention, a cavity is arranged inside the heating tooling 2, and the cavity is suitable for arranging the first heating block 21, the second heating block 22, the third heating block 23 and the cables connecting the temperature sensors 24 with the temperature control equipment.
[0033] In this embodiment, by integrating the cables of the first heating block 21, the second heating block 22, the third heating block 23 and the temperature sensors 24, there is only one external cable for one heating tooling 2, avoiding the phenomenon of multiple groups of cables on site when multiple traditional heating toolings 2 are used simultaneously, improving the safety of the site during the actual operation process, and also avoiding the eddy current effect of multiple groups of cables.
[0034] According to a heating device for the pultrusion die 1 provided by the present invention, as Figure 2As shown, the heating tooling 2 further includes an L-shaped plate, and the first heating block 21, the second heating block 22, the third heating block 23 and the temperature sensor 24 are fixedly arranged on the inner side wall of the L-shaped plate.
[0035] A heating device for a pultrusion die 1 according to the present utility model, as Figure 2 and Figure 4 shown, the accommodation space 3 is formed by overlapping two of the L-shaped plates.
[0036] In this embodiment, the heating tooling 2 adopts a two-piece design, reducing the number of heating toolings 2 used and facilitating the actual operation of workers.
[0037] A heating device for a pultrusion die 1 according to the present utility model, the temperature measuring holes 11 are arranged on both sides of the pultrusion die 1.
[0038] In this embodiment, the heating tooling 2 adopts a two-piece design, and temperature sensors 24 are arranged on both sides to cooperate with the temperature measuring holes 11, avoiding the influence on product quality due to different heating temperatures of the heating toolings 2 on both sides.
[0039] A heating device for a pultrusion die 1 according to the present utility model, the temperature range of the first heating block 21 is 110°C to 140°C, the temperature range of the second heating block 22 is 150°C to 170°C, and the temperature range of the third heating block 23 is 130°C to 150°C.
[0040] In this embodiment, by setting different temperatures for the first heating block 21, the second heating block 22 and the third heating block 23, the material first passes through the first heating block 21. First, the first heating block 21 preheats the material, then, the second heating block 22 heats the material to facilitate pultrusion of the material. After the pultrusion of the material is completed, finally, the material is shaped by passing through the third heating block 23.
[0041] According to some preferred embodiments of the present utility model, the temperature range of the first heating block 21 is 110°C - 120°C, such as 110°C, 115°C, 120°C.
[0042] According to some preferred embodiments of the present utility model, the temperature range of the second heating block 22 is 160°C - 170°C, such as 160°C, 165°C, 170°C.
[0043] According to some preferred embodiments of the present utility model, the temperature range of the second heating block 22 is 140°C to 150°C, such as 140°C, 145°C, 150°C.
[0044] According to a heating device for a pultrusion die 1 provided by the present utility model, a die cavity 12 is arranged inside the pultrusion die 1, and the end of the temperature measuring hole 11 is close to the die cavity 12.
[0045] In this embodiment, the end of the temperature measuring hole 11 is close to the die cavity 12, and the die cavity 12 is not communicated with the temperature measuring hole 11, which improves the accuracy of temperature measurement and avoids the outflow of materials.
[0046] According to a heating device for a pultrusion die 1 provided by the present utility model, the temperature sensor 24 adopts a thermocouple temperature sensor 24.
[0047] In this embodiment, the thermocouple temperature sensor 24 has the characteristics of a wide temperature range, adaptation to various atmospheric environments, being strong, low in price, and not requiring power supply.
[0048] According to a heating device for a pultrusion die 1 provided by the present utility model, the first heating block 21, the second heating block 22, and the third heating block 23 are all arranged in a serpentine layout.
[0049] In this embodiment, the serpentine layout is beneficial to expanding the heating range and can save costs at the same time.
[0050] The heating device for a pultrusion die in the embodiments of the present disclosure has the following technical effects compared with the prior art:
[0051] (1) The temperature feedback directly feeds back the temperature near the material in the die, and can truly feedback the temperature of the pultrusion die during actual pultrusion.
[0052] (2) The heating tooling adopts a two-piece type partition temperature design, and the cables of the heating block and the temperature sensor are integrated, avoiding the chaos around the die caused by multiple cables during heating, reducing the potential safety hazards during the heating process, and avoiding the eddy current phenomenon caused by multiple groups of cables.
[0053] (3) The heating tooling adopts a two-piece type design, reducing the number of heating toolings used and facilitating the actual operation of workers.
[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims
1. A heating device for a pultrusion die, characterized in that: include: A pultrusion die and a heating tool, wherein the heating tool is provided with a accommodating space, the pultrusion die is arranged in the accommodating space, a first heating block, a second heating block and a third heating block are arranged on the inner side wall of the heating tool, temperature sensors are fixedly arranged at the first heating block, the second heating block and the third heating block respectively, a temperature measuring hole is arranged on the outer side wall of the pultrusion die, the temperature sensor is embedded in the inside of the temperature measuring hole, and the temperature sensor is used to measure the temperature of the material in the pultrusion die.
2. The heating device for pultrusion die according to claim 1, characterized in that: The heating tool also includes an L-shaped plate, and the first heating block, the second heating block, the third heating block and the temperature sensor are fixedly arranged on the inner side wall of the L-shaped plate.
3. The heating device for pultrusion die according to claim 2, characterized in that: The accommodating space is formed by overlapping two L-shaped plates.
4. The heating device for pultrusion die according to claim 1, characterized in that: The temperature measuring holes are arranged on both sides of the pultrusion die.
5. The heating device for pultrusion die according to claim 1, characterized in that: The temperature range of the first heating block is 110°C to 140°C, the temperature range of the second heating block is 150°C to 170°C, and the temperature range of the third heating block is 130°C to 150°C.
6. The heating device for pultrusion die according to claim 1, characterized in that: A mold cavity is arranged inside the pultrusion mold, and the end of the temperature measuring hole is close to the mold cavity.
7. The heating device for pultrusion die according to claim 1, characterized in that: The temperature sensor is a thermocouple temperature sensor.
8. The heating device for pultrusion die according to claim 1, characterized in that: The first heating block, the second heating block and the third heating block are all arranged in a serpentine shape.