Heating plate heat preservation device for pultrusion

Abstract

The utility model discloses a heating plate thermal insulation device for pultrusion, which comprises a heating plate, a pultrusion mold matched with the heating plate is fixedly connected onto the inner wall of the heating plate, heat conduction pipes are mounted on the outer walls of two ends of the heating plate, and a thermal insulation device matched with the heating plate is fixedly connected onto the outer wall of the heating plate. The heating plate heat preservation device for pultrusion is characterized in that the heat preservation device is of a multi-layer composite structure, the multi-layer composite structure comprises a heat preservation plate outer layer, a heat preservation plate middle layer and a heat preservation plate inner layer, and a heating plate plug port is formed in the outer wall of one end of the heating plate. The heat preservation layer is completely attached to the outer wall of the heating plate, the problems of heat preservation dead corners, serious heat loss and the like of the heating plate are solved, the heat preservation layer is of a multi-layer composite structure, heat conduction, convection and radiation loss are effectively prevented, the energy utilization rate is increased, and the pultrusion quality is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of pultrusion molding technology, specifically relating to a heating plate insulation device for pultrusion molding. Background Technology

[0002] In the pultrusion process, the heating plate generates heat through electric heating and transfers the heat to the mold and resin material. After the fiber bundle is heated in the mold, the resin begins to solidify, forming a pultruded part with a constant cross-sectional shape. The heat preservation device is used to reduce heat loss and improve heating efficiency.

[0003] Traditional insulation measures have the following problems: using simple coverings for insulation cannot fit the heating plate well, resulting in insulation dead corners and poor insulation effect, which affects the quality of the pultruded products; it cannot effectively prevent heat conduction, convection and radiation loss, thus leading to energy waste and increased production costs.

[0004] Therefore, in order to address the above-mentioned technical problems, it is necessary to provide a heating plate insulation device for pultrusion molding.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to provide a heating plate insulation device for pultrusion molding, which can solve the problems mentioned in the background art.

[0007] To achieve the above objectives, a specific embodiment of this utility model provides the following technical solution: it includes a heating plate, on the inner wall of the heating plate a pultrusion molding die that matches the heating plate is fixedly connected, heat conduction pipes are installed on the outer walls of both ends of the heating plate, and a heat insulation device that matches the heating plate is fixedly connected to the outer wall of the heating plate. The heat insulation device adopts a multi-layer composite structure, which includes an outer layer of heat insulation board, a middle layer of heat insulation board, and an inner layer of heat insulation board.

[0008] In one or more embodiments of this utility model, a heating plate plug is provided on one end of the outer wall of the heating plate, and heating plate thermocouple mounting holes are provided on both ends of the side walls of the heating plate.

[0009] In one or more embodiments of the present invention, the heat preservation device includes a heat preservation fixing plate, a heat preservation side plate that matches the heating plate is slidably connected to the heat preservation fixing plate, a heat preservation top plate is installed above the heat preservation fixing plate and the heat preservation side plate, and a pair of extension plates that match the heat preservation fixing plate and the heat preservation side plate are slidably connected to the inner wall of the heat preservation top plate.

[0010] In one or more embodiments of the utility model, the bottom end surface of the heat preservation fixed plate is provided with a plurality of groups of first T-shaped grooves matched with the heat preservation side plate, and a second T-shaped groove matched with the extension plate is formed in the side wall of the heat preservation fixed plate away from the heat preservation side plate.

[0011] In one or more embodiments of the utility model, the bottom end surface of the heat preservation fixed plate is provided with a first installation groove matched with the heating plate plug port, and a second installation groove matched with the heating plate thermocouple installation hole is formed in the side wall of the heat preservation fixed plate close to the second T-shaped groove.

[0012] In one or more embodiments of the utility model, a plurality of groups of third T-shaped grooves matched with the extension plate are formed in the side wall of the heat preservation side plate, and a plurality of groups of first T-shaped blocks matched with the first T-shaped grooves are fixedly connected to the bottom end surface of the heat preservation side plate, and a third installation groove matched with the heating plate thermocouple installation hole is formed in the side wall of the heat preservation side plate.

[0013] In one or more embodiments of the utility model, a plurality of groups of fourth T-shaped grooves matched with the extension plate are formed in the bottom end surface of the heat preservation top plate, and sealing plates are fixedly connected to the two end side walls of the extension plate, and a support plate is fixedly connected to the bottom end surface of the heat preservation top plate.

[0014] In one or more embodiments of the utility model, a plurality of groups of second T-shaped blocks matched with the third T-shaped grooves and the second T-shaped grooves are fixedly connected to the side wall of the extension plate, and a plurality of groups of third T-shaped blocks matched with the fourth T-shaped grooves are fixedly connected to the top end surface of the extension plate, and a fourth installation groove matched with the heating plate plug port is formed in the end surface of one of the extension plates.

[0015] In one or more embodiments of the utility model, the outer wall of the first T-shaped block is slid on the inner wall of the first T-shaped groove, the outer walls of the two groups of second T-shaped blocks are respectively slid on the inner walls of the third T-shaped grooves and the second T-shaped grooves, and the outer walls of the two groups of third T-shaped blocks are slid on the inner walls of the fourth T-shaped grooves.

[0016] In one or more embodiments of the utility model, the bottom end surfaces of the extension plate and the support plate are attached to the top end surface of the heating plate, the inner wall of the heat preservation fixed plate is attached to the bottom and one side inner wall of the heating plate, and one side wall of the heat preservation side plate is attached to the other side outer wall of the heating plate.

[0017] Compared with the prior art, the heat plate heat preservation device for pultrusion molding is provided with a heat preservation layer on the outer wall of the heat plate, the heat preservation layer is completely attached to the outer wall of the heat plate, and the problems of heat preservation dead angle and serious heat loss of the heat plate are solved; the heat preservation layer adopts a multilayer composite structure, effectively prevents heat conduction, convection and radiation loss, improves energy utilization rate, and guarantees the quality of pultrusion molding. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained according to these drawings without creative labor for those skilled in the art.

[0019] Figure 1 It is a structure schematic view of the heat plate heat preservation device for pultrusion molding in an embodiment of the present application.

[0020] Figure 2 It is a local structure schematic view of the heat plate heat preservation device for pultrusion molding in an embodiment of the present application. Figure 1 ;

[0021] Figure 3 It is a local structure schematic view of the heat plate heat preservation device for pultrusion molding in an embodiment of the present application. Figure 2 ;

[0022] Figure 4 It is a local structure schematic view of the heat plate heat preservation device for pultrusion molding in an embodiment of the present application. Figure 3 ;

[0023] Figure 4 It is a local structure schematic view of the heat plate heat preservation device for pultrusion molding in an embodiment of the present application. Figure 6 ;

[0024] Figure 5 It is a local structure schematic view of the heat plate heat preservation device for pultrusion molding in an embodiment of the present application. Figure 7 ;

[0025] Figure 6 It is a local structure schematic view of the heat plate heat preservation device for pultrusion molding in an embodiment of the present application. Figure 8 ;

[0026] Figure 9 It is a local structure schematic view of the heat plate heat preservation device for pultrusion molding in an embodiment of the present application.

[0027] Figures 1-2The utility model discloses a partial structure schematic view of the ply of the composite laminated board of the heat preservation device in an embodiment of the utility model.

[0028] Main figure mark explanation:

[0029] 1 - heating plate, 101 - heating plate plug port, 102 - heating plate thermocouple mounting hole, 2 - pultrusion forming die, 3 - heat pipe, 4 - heat preservation device, 401 - heat preservation fixed plate, 4011 - first T - shaped groove, 4012 - second T - shaped groove, 4013 - first installation groove, 4014 - second installation groove, 402 - heat preservation side plate, 4021 - third T - shaped groove, 4022 - first T - shaped block, 4023 - third installation groove, 403 - heat preservation top plate, 4031 - fourth T - shaped groove, 4032 - sealing plate, 4033 - support plate, 404 - extension plate, 4041 - second T - shaped block, 4042 - third T - shaped block, 4043 - fourth installation groove, 405 - heat preservation plate outer layer, 406 - heat preservation plate middle layer, 407 - heat preservation plate inner layer. DETAILED DESCRIPTION

[0030] In order to make the personnel in the technical field better understand the technical scheme in the utility model, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model, obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor should belong to the protection scope of the utility model.

[0031] As Figure 9 The utility model discloses a pultrusion heating plate heat preservation device, including heating plate 1, the inner wall of heating plate 1 is fixedly connected with the pultrusion forming die 2 of matching with heating plate 1, and the outer wall of both ends of heating plate 1 is installed with heat pipe 3, and the outer wall of heating plate 1 is fixedly connected with the heat preservation device 4 of matching with heating plate 1, and the inner wall of heating plate 1 is closely combined on the outer wall of pultrusion forming die 2, and the heat on the inner wall of heating plate 1 is evenly transferred to pultrusion forming die 2, and the heat generated on the both sides of heating plate 1 is transferred to heat pipe 3.

[0032] Further, by locating the heat conduction pipe 3 at both ends of the pultrusion die 2, the material can be preheated before entering the pultrusion die 2, which helps to reduce the temperature gradient of the material in the pultrusion die 2, making the material more uniformly heated and solidified during the molding process. At the moment of leaving the pultrusion die 2, the temperature may decrease due to the contact with the pultrusion die 2 and the influence of the external environment. At this time, the heat conduction pipe 3 can provide an additional heat source to ensure that the material remains within a suitable temperature range after leaving the die, preventing performance changes caused by sudden temperature drops. Thus, energy waste is reduced and production efficiency is increased.

[0033] As shown in Figures 2-8 The heat preservation device 4 adopts a multi-layer composite structure, which includes an outer layer 405 of the heat preservation plate, a middle layer 406 of the heat preservation plate, and an inner layer 407 of the heat preservation plate.

[0034] Preferably, the material of the inner layer 407 of the heat preservation plate is ceramic fiber felt, the material of the middle layer 406 of the heat preservation plate is aerogel felt, and the material of the outer layer 405 of the heat preservation plate is aluminum foil. Ceramic fiber felt has good high-temperature resistance, aerogel felt has extremely low thermal conductivity, and aluminum foil can reflect heat and reduce heat radiation loss. It effectively prevents heat conduction, convection, and radiation loss, improves energy utilization, and ensures the quality of pultrusion.

[0035] As shown in ​As shown, the heat preservation device 4 comprises a heat preservation fixed plate 401, a heat preservation side plate 402 matched with the heating plate 1 is slidably connected to the heat preservation fixed plate 401, a heat preservation top plate 403 is installed above the heat preservation fixed plate 401 and the heat preservation side plate 402, a pair of extension plates 404 matched with the heat preservation fixed plate 401 and the heat preservation side plate 402 are slidably connected to the inner wall of the heat preservation top plate 403, a plurality of groups of first T-shaped grooves 4011 matched with the heat preservation side plate 402 are formed on the bottom end face of the heat preservation fixed plate 401, a second T-shaped groove 4012 matched with the extension plate 404 is formed on the side wall of the heat preservation fixed plate 401 away from the heat preservation side plate 402, a plurality of groups of third T-shaped grooves 4021 matched with the extension plate 404 are formed on the side wall of the heat preservation side plate 402, a plurality of groups of first T-shaped blocks 4022 matched with the first T-shaped grooves 4011 are fixedly connected to the bottom end face of the heat preservation side plate 402, a plurality of groups of fourth T-shaped grooves 4031 matched with the extension plate 404 are formed on the bottom end face of the heat preservation top plate 403, sealing plates 4032 are fixedly connected to the two end side walls of the extension plate 404, a support plate 4033 is fixedly connected to the bottom end face of the heat preservation top plate 403, a plurality of groups of second T-shaped blocks 4041 matched with the third T-shaped grooves 4021 and the second T-shaped grooves 4012 are fixedly connected to the side wall of the extension plate 404, a plurality of groups of third T-shaped blocks 4042 matched with the fourth T-shaped grooves 4031 are fixedly connected to the top end face of the extension plate 404, a fourth installation groove 4043 matched with the heating plate plug port 101 is formed on the end face of one of the extension plates 404, the outer wall of the heat preservation side plate 402 located at the first T-shaped block 4022 is slidably connected to the inner wall of the first T-shaped groove 4011, the outer walls of the two groups of second T-shaped blocks 4041 are respectively slidably connected to the inner walls of the third T-shaped grooves 4021 and the second T-shaped grooves 4012, the outer walls of the two groups of third T-shaped blocks 4042 are slidably connected to the inner walls of the fourth T-shaped grooves 4031, the bottom end faces of the extension plate 404 and the support plate 4033 are attached to the top end face of the heating plate 1, the inner wall of the heat preservation fixed plate 401 is attached to the bottom and one side inner wall of the heating plate 1, and the side wall of the heat preservation side plate 402 is attached to the other side outer wall of the heating plate 1.

[0036] In the installation, first, the heating plate 1 and pultrusion die 2 are placed on the heat preservation fixed plate 401, the bottom and side edge of the heating plate 1 are attached to the inner wall of the bottom and side edge corner of the heat preservation fixed plate 401, then the heat preservation side plate 402 is installed, the first T-shaped block 4022 on the bottom end face of the heat preservation side plate 402 is slid in the first T-shaped groove 4011, and is slid to the side wall of the heat preservation side plate 402 attached to the other side wall of the heating plate 1, then the heat preservation top plate 403 is installed, the second T-shaped block 4041 at both ends of the heat preservation top plate 403 is slid in the third T-shaped groove 4021 and the second T-shaped groove 4012 respectively, the first T-shaped block 4022 is slid in the fourth T-shaped groove 4031 to the appropriate position, the top end face of the support plate 4033 and the extension plate 404 is attached to the top end face of the heating plate 1, and the heat preservation top plate 403 on both sides is used for shielding and sealing to avoid heat loss. The overall structure of the heat preservation device is suitable for heating plates of different width and height, has wide application range, is convenient to adjust, and is convenient to disassemble and install.

[0037] Further, the heating plate 1 is provided with a heating plate plug port 101 on one end outer wall, heating plate thermocouple installation holes 102 are formed on the two end side walls of the heating plate 1, a first installation groove 4013 matched with the heating plate plug port 101 is formed on the bottom end face of the heat preservation fixed plate 401, a second installation groove 4014 matched with the heating plate thermocouple installation hole 102 is formed on the side wall of the heat preservation fixed plate 401 close to the second T-shaped groove 4012, a third installation groove 4023 matched with the heating plate thermocouple installation hole 102 is formed on the side wall of the heat preservation side plate 402, the thermocouple is installed in the second installation groove 4014 and the third installation groove 4023, and then the heating plate 1 is connected through the heating plate thermocouple installation holes 102 on both sides of the heating plate 1.

[0038] Preferably, the thermocouple as a temperature sensor is installed on the contact surface of the heating plate and the die, can accurately perceive the actual temperature of the die, monitor the temperature change of the heating plate in real time, and transmit signals to the control system, so that the control system can make corresponding adjustment according to the temperature change, and ensure the stability and reliability of the pultrusion molding process.

[0039] In use, the size of the heat preservation device 4 is adjusted at will according to the size of the heating plate 1 and the pultrusion die 2, so that the heat preservation device 4 is suitable for heating plates 1 of different sizes, can completely attach to the outer wall of the heating plate 1, solves the problems of heating plate heat preservation dead angle and serious heat loss, is convenient to disassemble and adjust, has wide application range; the heat generated on the side of the heating plate 1 preheats the pultrusion raw material through the heat conduction pipes 3 on both sides and relieves the temperature gradient, reduces the waste of energy, and improves the quality of the product after pultrusion; the plate material of the heat preservation device 4 is composed of a multi-layer composite structure, effectively prevents heat conduction, convection and radiation loss, and improves energy utilization.

[0040] It will be obvious to a person skilled in the art that the application is not limited to the details of the above-described exemplary embodiments, but that the application can be implemented in other concrete forms without departing from the spirit or essential characteristics of the application. The embodiments should, therefore, be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the above description, and all changes which come within the meaning and range of equivalents of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the scope of the claims concerned.

[0041] Furthermore, it should be understood that although the present specification is described in terms of embodiments, not every implementation embodies only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A heating plate heat preservation device for pultrusion, comprising a heating plate, an inner wall of the heating plate is fixedly connected with a pultrusion die matched with the heating plate, characterized in that, The outer wall of both ends of the heating plate is provided with a heat conducting pipe, and the outer wall of the heating plate is fixedly connected with a heat preservation device matched with the heating plate. The heat preservation device adopts a multi-layer composite structure, which includes an outer layer of heat preservation plate, a middle layer of heat preservation plate and an inner layer of heat preservation plate.

2. The heating plate heat retaining device for pultrusion according to claim 1, characterized in that, The outer wall of one end of the heating plate is provided with a heating plate plug port, and the outer wall of both ends of the heating plate is provided with a heating plate thermocouple mounting hole.

3. The heating plate thermal insulation device for pultrusion according to claim 1, characterized in that, The heat preservation device includes a heat preservation fixed plate, a heat preservation side plate matched with the heating plate is slidably connected to the heat preservation fixed plate, a heat preservation top plate is arranged above the heat preservation fixed plate and the heat preservation side plate, and a pair of extension plates matched with the heat preservation fixed plate and the heat preservation side plate are slidably connected to the inner wall of the heat preservation top plate.

4. The heating plate thermal retention device for pultrusion according to claim 3, wherein A plurality of groups of first T-shaped grooves matched with the heat preservation side plate are arranged on the bottom end face of the heat preservation fixed plate, and a second T-shaped groove matched with the extension plate is arranged on the side wall of the heat preservation fixed plate away from the heat preservation side plate.

5. The heating plate thermal retention device for pultrusion according to claim 4, wherein A first mounting groove matched with the heating plate plug port is arranged on the bottom end face of the heat preservation fixed plate, and a second mounting groove matched with the heating plate thermocouple mounting hole is arranged on the side wall of the heat preservation fixed plate close to the second T-shaped groove.

6. The heating plate thermal retention device for pultrusion according to claim 5, wherein A plurality of groups of third T-shaped grooves matched with the extension plate are arranged on the side wall of the heat preservation side plate, a plurality of groups of first T-shaped blocks matched with the first T-shaped grooves are fixedly connected to the bottom end face of the heat preservation side plate, and a third mounting groove matched with the heating plate thermocouple mounting hole is arranged on the side wall of the heat preservation side plate.

7. The heating plate thermal retention device for pultrusion according to claim 6, wherein A plurality of groups of fourth T-shaped grooves matched with the extension plate are arranged on the bottom end face of the heat preservation top plate, and sealing plates are fixedly connected to the two end side walls of the extension plate.

8. The heating plate thermal retention device for pultrusion according to claim 7, characterized in that, A plurality of groups of second T-shaped blocks matched with the third T-shaped grooves and the second T-shaped grooves are fixedly connected to the side wall of the extension plate, and a plurality of groups of third T-shaped blocks matched with the fourth T-shaped grooves are fixedly connected to the top end face of the extension plate, and a fourth mounting groove matched with the heating plate plug port is arranged on the end face of one of the extension plates.

9. The heating plate thermal retention device for pultrusion according to claim 8, wherein The outer wall of the heat preservation side plate is slidably arranged on the inner wall of the first T-shaped groove, the outer walls of the two groups of second T-shaped blocks are respectively slidably arranged on the inner walls of the third T-shaped grooves and the second T-shaped grooves, and the outer walls of the two groups of third T-shaped blocks are slidably arranged on the inner walls of the fourth T-shaped grooves.

10. The heating plate thermal retention device for pultrusion according to claim 9, wherein The bottom end faces of the extension plate and the support plate are attached to the top end face of the heating plate, the inner wall of the heat preservation fixed plate is attached to the bottom and one side inner wall of the heating plate, and the side wall of the heat preservation side plate is attached to the other side outer wall of the heating plate.

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