Pultrusion profile forming device and method

Abstract

The invention relates to the technical field of pultrusion profile forming devices, in particular to a pultrusion profile forming device and method.When materials are laid on a layering module, a layering plate is installed at the bottom of the layering module, and the materials are laid on the top face of the installed layering plate; the next layered plate is mounted to the position above the mounted layered plate, and then the materials are laid to the position above the second layered plate; at least one layered plate defines a mounting inner cavity, the core rod is mounted in the mounting inner cavity, and the top surface and the bottom surface of the core rod are detachably connected with the layered plates, so that the core rod is fixed in the mounting inner cavity; the operations of mounting the layering plates and laying the materials are repeated until the layering plate located at the topmost part of the layering module is mounted, and laying of the materials on the top surfaces of the layering plates is stopped, so that the core rod does not need to be guided into the mounting inner cavity, abrasion to the materials in the core rod guiding-in process is reduced, and the top and the bottom of the core rod are fixedly connected with the layering plates respectively; positioning and mounting are accurate.

Description

Technical Field

[0001] The present invention relates to the technical field of pultruded profile forming devices, and in particular to a pultruded profile forming device and method. Background Art

[0002] The composite pultrusion process is a process method for producing composite profiles by impregnating continuous fibers or their fabrics with resin under the traction of a traction device and curing the resin by heating through a forming die.

[0003] In the prior art, a pultruded profile forming device generally includes a forming member for accommodating materials. At least one profile channel and a mandrel for limiting the profile are provided in the forming member. Since the position of the mandrel will move along with the movement of the profile, the shape of the profile channel is likely to change, reducing the forming quality and production efficiency of the profiles produced by the pultruded profile forming device. The mandrel can only be gradually introduced into the cavity of the forming member from the outside after most of the components of the pultruded profile forming device are assembled. During this process, the mandrel may apply stresses in different directions to the material, resulting in wear or even breakage of the material, affecting the product quality of the material after pultrusion. If the material breaks, the staff can only reconnect the wires, which also reduces the production efficiency.

[0004] In addition, in the prior art, a flowable glue for connecting two materials is usually directly injected into the profile channel of the forming member. For example, the flowable glue is directly injected into the profile channel of the forming member. Due to the limited fluidity of the flowable glue, the flowable glue is likely to stay at the edge position inside the forming member, resulting in the solidification of the flowable glue in the forming member. In order not to affect the normal operation of the forming member, the staff can only disassemble the entire forming member to clean the solidified flowable glue, and the maintenance steps are relatively cumbersome and the maintenance cost is relatively high. Summary of the Invention

[0005] The purpose of the present invention is to provide a pultruded profile forming device and method to solve the technical problems of easy solidification of the flowable glue, easy wear of the material during mandrel introduction, and inaccurate mandrel positioning existing in the prior art.

[0006] The present application provides a pultruded profile forming device, including: A perforated plate, on which at least two through holes are provided, and one through hole is used for passing at least one strand of material; An impregnation box, which is arranged on the side of the perforated plate for outputting materials, and the impregnation box is connected to a glue injection machine for impregnating the materials in the impregnation box; A layering module, which is arranged on the side of the impregnation box for outputting materials. A layering channel extending along a first direction is provided in the layering module, and the first direction is the moving direction of the material during the pultrusion of the profile; There are at least two layered channels, and the layered channels are used for threading the material infiltrated by the dipping box.

[0007] In some embodiments of the present application, the layering module includes at least two layering plates arranged up and down, and at least two layered channels are formed between the multiple layering plates; the multiple layered channels are arranged at intervals up and down, and the layered channels extend along the first direction and penetrate the layering module.

[0008] In some embodiments of the present application, the layering plate includes: A first bottom plate and a first top plate, which are oppositely arranged between the first bottom plate and the first top plate; A limiting member, which is connected between the first bottom plate and the first top plate; The pultrusion forming device further includes a mandrel. An installation inner cavity for threading the mandrel is formed in the limiting member. The installation inner cavity penetrates the limiting member and extends along the first direction, and the mandrel is fixedly connected in the installation inner cavity.

[0009] In some embodiments of the present application, the limiting member includes a first limiting plate, a second limiting plate, and a third limiting plate connected in sequence from bottom to top. The first limiting plate is connected to the bottom of the mandrel, the third limiting plate is connected to the top of the mandrel, there are two second limiting plates and they are arranged at intervals, and at least part of the mandrel is arranged between the two second limiting plates.

[0010] In some embodiments of the present application, the limiting member includes a first limiting plate. A through hole extending along the first direction is provided on the bottom surface of the first limiting plate. The first limiting plate is connected to the top of the first bottom plate so that a first-layer layered channel is formed between the first limiting plate and the first bottom plate.

[0011] In some embodiments of the present application, a through hole extending along the first direction is provided on the top surface of the first limiting plate. The limiting member further includes a second limiting plate, and a second-layer layered channel is formed between the first limiting plate and the second limiting plate.

[0012] In some embodiments of the present application, the limiting member includes a third limiting plate. The third limiting plate is connected between the second limiting plate and the first top plate. A through hole is provided on the top surface of the third limiting plate so that a third-layer layered channel is formed between the third limiting plate and the first top plate.

[0013] In some embodiments of the present application, a preforming module and a forming module are further included. The preforming module is connected to one end of the layering module for outputting materials, and the forming module is connected to one end of the preforming module for outputting materials.

[0014] In some embodiments of the present application, at least one fixing plate is further included. One fixing plate is connected to the bottom or top of the layering module, the preforming module, and the forming module.

[0015] The present application also provides a pultruded profile forming method: The material is divided into multiple strands, threaded through a threading plate, and then through an impregnation box; Install a lamination plate at the bottom of the lamination module, and lay the material on the top surface of the installed lamination plate; Install the next lamination plate above the installed lamination plate, and then lay the material above the second lamination plate; At least one lamination plate defines an installation cavity, install the mandrel into the installation cavity, and detachably connect the top and bottom surfaces of the mandrel to the lamination plate so that the mandrel is fixed in the installation cavity; Repeat the above operations of installing the lamination plate and laying the material until the lamination plate at the top of the lamination module is installed, and stop laying the material on the top surface of the lamination plate.

[0016] The pultruded profile forming method of the present application has at least the following positive effects: The present invention provides a pultruded profile forming method. When laying the material on the lamination module, install the lamination plate at the bottom of the lamination module and lay the material on the top surface of the installed lamination plate; install the next lamination plate above the installed lamination plate, and then lay the material above the second lamination plate; at least one lamination plate defines an installation cavity, install the mandrel into the installation cavity, and detachably connect the top and bottom surfaces of the mandrel to the lamination plate so that the mandrel is fixed in the installation cavity; repeat the above operations of installing the lamination plate and laying the material until the lamination plate at the top of the lamination module is installed, and stop laying the material on the top surface of the lamination plate. In the present application, when installing one layer of the lamination plate, one layer of the material is laid on the lamination plate, which can realize multiple strands of the material being threaded through the lamination module, and the mandrel can be placed downward into the installation cavity when the installation cavity is in an open state at the top, without the need to introduce the mandrel into the installation cavity, reducing the wear of the material during the introduction of the mandrel, and the top and bottom of the mandrel are respectively fixedly connected to the lamination plate, with accurate positioning and installation, so that the mandrel will not change its position during the movement of the material, improving the quality and production efficiency of the produced profiles. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is an external view of the pultruded profile forming device in Embodiment 1; Figure 2 The external view of the pultruded profile forming device of Example 1 from another angle; Figure 3 The exploded view of the pultruded profile forming device of Example 1; Figure 4 The side view of the layered module and part of the mandrel connection of the pultruded profile forming device of Example 1; Figure 5 The three-dimensional schematic diagram of the layered module and part of the mandrel connection of the pultruded profile forming device of Example 1; Figure 6 The exploded view of the layered module and the mandrel of the pultruded profile forming device of Example 1; Figure 7 The schematic diagram of the preforming module of the pultruded profile forming device of Example 1; Figure 8 The schematic diagram of the forming module of the pultruded profile forming device of Example 1; Figure 9 The schematic diagram of the forming module of the pultruded profile forming device of Example 1 from another angle; Figure 10 The schematic diagram of the piercing plate of the pultruded profile forming device of Example 1; Figure 11 The front view of the connection between the mandrel and the layered module of the pultruded profile forming device of Example 1; Figure 12 The connection schematic diagram of the preforming module and the mandrel of the pultruded profile forming device of Example 1; Figure 13 The external view of the pultruded profile forming device of Example 1 from another angle; Figure 14 The exploded view of the piercing plate, dipping box and the rest of the pultruded profile forming device of Example 1; Figure 15 The exploded view of the forming module of the pultruded profile forming device of Example 1; Figure 16 For Figure 13 The left view of the pultruded profile forming device in Figure 17 The schematic diagram of the pultruded profile forming device of Example 2; Figure 18 For Figure 17 The right view of the pultruded profile forming device in Figure 19 The schematic diagram of the pultruded profile forming device of Example 2 from another perspective; Figure 20 The exploded view of the pultruded profile forming device of Example 2; Figure 21It is an exploded view of the pultruded profile forming device in Example 2 from another angle; Figure 22 It is a front view of the connection between the mandrel and the layering module of the pultruded profile forming device in Example 2; Figure 23 It is a schematic diagram of the cooperation between the preforming module and the mandrel of the pultruded profile forming device in Example 2; Figure 24 It is a schematic diagram of the cooperation between the forming module and the mandrel of the pultruded profile forming device in Example 2; Figure 25 It is a schematic diagram of the pultruded profile forming device in Example 3; Figure 26 It is a schematic diagram of the pultruded profile forming device in Example 3 from another angle; Figure 27 It is a connection schematic diagram of the mandrel, layering module, preforming module and forming module of the pultruded profile forming device in Example 3; Figure 28 It is an exploded view of the pultruded profile forming device in Example 3; Figure 29 It is a front view of the connection between the mandrel and the layering module of the pultruded profile forming device in Example 3; Figure 30 For Figure 25 right view; Figure 31 It is a schematic diagram of the cooperation between the preforming module and the mandrel of the pultruded profile forming device in Example 3; Figure 32 It is a schematic diagram of the cooperation between the forming module and the mandrel of the pultruded profile forming device in Example 3; Icon: 100, pultruded profile forming device; 1, threading plate; 2, impregnating box; 3, layering module; 31, layering plate; 32, layering channel; 33, first bottom plate; 34, first top plate; 351, first limiting plate; 3511, first recess; 352, second limiting plate; 353, third limiting plate; 36, gasket; 4, mandrel; 5, preforming module; 51, preforming channel; 52, second recess; 53, third top plate; 54, third bottom plate; 6, forming module; 61, forming channel; 62, third recess; 63, second top plate; 64, second bottom plate; 7, fixing plate; 8, box cover. Detailed implementation manners

[0019] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0021] In the present invention, unless otherwise clearly defined and limited, the first feature being above or below the second feature may include direct contact between the first and second features, or may include indirect contact between the first and second features through additional features therebetween. Moreover, the first feature being above, on top of, and over the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being below, beneath, and under the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.

[0022] The pultrusion process of composite materials is a process method for producing composite profiles by impregnating continuous fibers or their fabrics with resin under the traction of a traction device and curing the resin by heating through a forming die. The present application provides a pultruded profile forming device 100 in which a flowable colloid is not easily solidified inside a formed part or other pultrusion modules.

[0023] The following details three different pultruded profile forming devices: Example 1, Example 2, and Example 3.

[0024] Example 1

[0025] In this Example 1, the structure of the pultruded profile forming device 100 is described in detail with the case of only one mandrel 4, as follows: Referring to Figures 1 - 16 , the pultruded profile forming device 100 includes a piercing plate 1, a layering module 3, and a mandrel 4.

[0026] The threading plate 1 is provided with at least two through holes, and one of the through holes is used for threading at least one strand of material; the impregnating box 2 is connected to a glue injection machine and is used for impregnating the material in the impregnating box 2; the layering module 3 is arranged on one side of the impregnating box 2 for outputting the material, that is, the layering module 3 is arranged on one side of the threading plate 1 for outputting the material. The layering module 3 is provided with a layering channel 32 extending along a first direction, and the first direction is the moving direction of the material during the pultrusion process; there are at least two layering channels 32, and the layering channels 32 are used for threading the material impregnated by the impregnating box 2.

[0027] There are at least two layering plates 31, and a plurality of the layering plates 31 jointly define an installation cavity; the installation cavity extends along the first direction and penetrates the layering module 3. The mandrel 4 is detachably connected to at least one layering plate 31, so that the mandrel 4 and the installation cavity are detachably connected, so that the mandrel 4 is fixed inside the installation cavity, so that the relative position between the mandrel 4 and the installation cavity remains unchanged.

[0028] In the prior art, the pultruded profile forming device 100 usually directly injects the flowable glue into the profile channel of the formed part. Due to the limited fluidity of the flowable glue, the flowable glue is likely to stay at the edge position inside the formed part, resulting in the solidification of the flowable glue in the formed part. In order not to affect the normal operation of the formed part, the staff can only disassemble the entire formed part to clean the solidified flowable glue, and the maintenance steps are relatively cumbersome and the maintenance cost is relatively high.

[0029] The pultruded profile forming device 100 of the present application arranges the impregnating box 2 at one end of the threading plate 1 for outputting the material, which can make the flow effect of the glue better during the movement of the material, so that the flowable glue on the surface of the material is smeared more evenly. The impregnating box 2 is arranged at one end of the layering module 3 for inputting the material, so that the impregnated material is extruded in the layering channel 32 to form additional flow resistance, so that the flowable glue remains in a flowing state and reduces the probability of the flowable glue solidifying in the dead corner of the layering module 3.

[0030] In some embodiments, the threading plate 1 is provided with a plurality of first openings, the first openings extend along the first direction and penetrate the threading plate 1, and the plurality of first openings are arranged in an array, and the material is threaded in the first openings.

[0031] The threading plate 1 is used for threading the material. When loading the material into the pultruded profile forming device 100 at the beginning, the material is divided into multiple strands, and each strand of material is respectively threaded in a first opening, so that the material is evenly distributed on the threading plate 1, which is also convenient for the subsequent placement of the material into the layering module 3. It is convenient for the staff to thread according to different holes. During the working process, the material can be threaded in the first openings at different positions and different cross-sections according to the specific specifications of the profile, which improves the universality of the application of the pultruded profile forming device 100 and also improves the efficiency of threading the material.

[0032] The first direction is the moving direction of the material during the pultrusion process. In other embodiments, the first direction can be adjusted according to the actual pultrusion operation without limitation. The material can be glass fiber, polyester fiber, or other materials that are not fibers but can withstand pultrusion. Different types of the above materials are within the protection scope of this application.

[0033] The impregnation box 2 is connected to the side of the material output of the perforated plate 1. There is a flowable glue in the impregnation box 2. After the material passes through the perforated plate 1, it enters the impregnation box 2. After the material is infiltrated by the flowable glue in the impregnation box 2, it is convenient for subsequent fastening and forming.

[0034] In some embodiments of this application, a liquid level sensor is arranged in the impregnation box 2, and the sensing end of the liquid level sensor is arranged in the impregnation box 2. The liquid level sensor detects the height of the colloid in the impregnation box 2.

[0035] In some embodiments, there are at least two liquid level sensors. One liquid level sensor is located in the upper half of the impregnation box 2, and the other liquid level sensor is located in the lower half of the impregnation box 2. The liquid level sensors are electrically connected to the controller of the glue injection machine.

[0036] When the height of the colloid in the impregnation box 2 does not reach the first height threshold, at this time, the height of the flowable glue in the impregnation box 2 is too low to meet the impregnation requirement. The glue injection machine injects glue into the impregnation box 2 to increase the height of the flowable glue in the impregnation box 2 to meet the glue injection operation conditions of the material.

[0037] It should be noted that the sensing ends of the liquid level sensor located above and the liquid level sensor located below are arranged at intervals up and down, that is, there is a certain height difference between the sensing ends of the two liquid level sensors in the impregnation box 2. When the height of the colloid in the impregnation box 2 is between the sensing ends of the two liquid level sensors, the colloid can meet the requirement of impregnating the material.

[0038] When the height of the colloid in the impregnation box 2 is not less than the second height threshold, at this time, the height of the flowable glue in the impregnation box 2 is too high. The glue injection machine receives the signal from the liquid level sensor and reduces the glue injection amount to reduce the probability of the colloid with too high height overflowing from the impregnation box 2 and reduce the probability of waste caused by colloid overflow.

[0039] By arranging two liquid level sensors arranged up and down in the impregnation box 2, the flowable glue in the impregnation box 2 of the pultrusion forming device 100 of this application can be automatically added to the set height range without manual glue injection, making the entire pultrusion process more automated and improving production efficiency.

[0040] The liquid level sensor of the present application can be set as a liquid level sensor with different structures. As long as it can measure the height of the colloid in the dipping box 2 and can be electrically connected to the controller of the injection molding machine, the liquid level sensor is within the protection scope of the present application.

[0041] The injection molding machine of the present application selects conventional equipment in the art. As long as the controller can be electrically connected to the liquid level sensor and the injection molding machine can automatically inject glue, it is within the protection scope of the present application.

[0042] Referring to Figures 3 - 6 , the layering module 3 includes at least two layering plates 31 arranged vertically. At least two layering channels 32 are formed between the multiple layering plates 31; the multiple layering channels 32 are arranged at intervals vertically, and the layering channels 32 extend along the first direction and penetrate through the layering module 3.

[0043] The mandrel 4 is arranged in the cavity of the layering module 3. The mandrel 4 is limited by at least one layering plate 31 so that the position of the mandrel 4 is fixed, reducing the probability of the mandrel 4 moving during the pultrusion process of the material and reducing the situation that the quality of the pultruded profile is affected due to the change of the position of the mandrel 4.

[0044] Optionally, there are two layering plates 31. The two layering plates 31 jointly enclose an installation cavity, and the mandrel 4 is arranged in the installation cavity of the layering module 3.

[0045] Optionally, there are three layering plates 31. The three layering plates 31 are arranged vertically. The three layering plates 31 jointly enclose an installation cavity, and the mandrel 4 is arranged in the installation cavity.

[0046] Or optionally, there are four layering plates 31. The four layering plates 31 are arranged vertically. The four layering plates 31 jointly enclose an installation cavity, and the mandrel 4 is arranged in the installation cavity.

[0047] Or optionally, there are five layering plates 31. The five layering plates 31 are arranged vertically. The five layering plates 31 jointly enclose an installation cavity, and the mandrel 4 is arranged in the installation cavity.

[0048] Or optionally, there are six layering plates 31. The six layering plates 31 are arranged vertically. The six layering plates 31 jointly enclose an installation cavity, and the mandrel 4 is arranged in the installation cavity.

[0049] Optionally, the layering plate 31 includes a first bottom plate 33 and a first top plate 34. The first bottom plate 33 and the first top plate 34 are arranged opposite to each other and are respectively arranged at the top and bottom of the layering module 3; the limiting member is connected between the first bottom plate 33 and the first top plate 34; the pultruded profile forming device 100 further includes a mandrel 4. An installation inner cavity for passing through the mandrel 4 is formed in the limiting member. The installation inner cavity penetrates through the limiting member and extends along the first direction, and the mandrel 4 is fixedly connected in the installation inner cavity.

[0050] The installation cavity is divided into stratified channels 32 that penetrate along the first direction by the mandrel 4 and the limiting member, and the material is threaded through the stratified channels 32. There are at least two stratified channels 32, and at least one strand of material to be pultruded is placed in each stratified channel 32, so that a stratified module 3 can thread multiple strands of material at the same time. The stratified channels 32 are independent of each other. The material is divided into multiple strands and placed in separate stratified channels 32 respectively. The material moves independently in the stratified channels 32 during the movement process, and there will be no situation where multiple strands of material move around and entangle in the stratified channels 32, thus making the quality of the pultruded profile better.

[0051] The stratified module 3 is arranged on the side where the impregnating box 2 outputs the material. The material moves along the first direction and successively passes through the threading plate 1 and the impregnating box 2 and then enters the stratified module 3.

[0052] The material is infiltrated by the flowable glue in the impregnating box 2. Since the material is first divided into at least two strands by the threading plate 1, the contact area of each strand of material when contacting the flowable glue is large, and it can be fully soaked by the flowable glue. After the material passes through the impregnating box 2, it then passes through the stratified channels 32 in the stratified module 3.

[0053] Optionally, the cross-sectional area at the entrance of the stratified channel 32 is small. When the material with a large amount of flowable glue enters the stratified channel 32, part of the flowable glue will be extruded by the inlet of the stratified channel 32, so that the material entering the stratified channel 32 carries a small amount of flowable glue, and the flowable glue flows along with the moving material under the action of the inner side wall of the stratified channel 32, reducing the probability of a large amount of flowable glue solidifying inside the stratified module 3.

[0054] Optionally, the stratified channel 32 gradually contracts along the first direction. The material carrying the flowable glue moves along the first direction in the stratified channel 32. When the space in the stratified channel 32 continuously contracts, the excess flowable glue is extruded to enhance the fluidity of the flowable glue in the stratified channel 32 and reduce the probability of the flowable glue solidifying.

[0055] Compared with the prior art, in the present application, the impregnating box 2 is arranged on the side where the material of the stratified module 3 enters, and the stratified channel 32 gradually contracts along the first direction. The flowable glue can flow in the narrow stratified channel 32 along with the movement of the material, and the excess flowable glue is extruded, keeping the flowable glue in a flowing state and reducing the probability of the flowable glue solidifying inside the stratified module 3, showing a significant improvement compared with the prior art.

[0056] In addition, the channel holes of the layered channel 32 gradually contract along the first direction, which is beneficial to the material entering the interior of the layered channel 32, so that the material enters the interior of the layered channel 32 along a direction forming an angle with the horizontal direction, thereby reducing the resistance and stress received by the material during the movement process and reducing the probability of the material deforming during the movement process.

[0057] Optionally, the layered plate 31 includes at least one first limiting plate 351. A first recess 3511 is provided on the first limiting plate 351. The first recess 3511 is provided on the top surface of the first limiting plate 351 and is recessed toward the bottom of the first limiting plate 351. The mandrel 4 and the first recess 3511 are detachably connected so that the relative position between the mandrel 4 and the first recess 3511 is kept fixed, thereby fixing the mandrel 4 inside the first recess 3511.

[0058] Optionally, the layered plate 31 successively connects a first limiting plate 351, a second limiting plate 352, and a third limiting plate 353 from bottom to top. The first limiting plate 351 is connected to the bottom of the mandrel 4, the third limiting plate 353 is connected to the top of the mandrel 4, there are two second limiting plates 352 and they are spaced apart, and at least part of the mandrel 4 is disposed between the two second limiting plates 352.

[0059] The second limiting plate 352 is connected to the top of the first limiting plate 351. There are at least two second limiting plates 352, and the two second limiting plates 352 are oppositely arranged. A first gap extending along the first direction is formed between the two second limiting plates 352. The first gap is located at the top of the first recess 3511. The first gap is used to accommodate the middle part of the mandrel 4, and at least part of the mandrel 4 is limited within the first gap.

[0060] The third limiting plate 353 is connected to the top of the second limiting plate 352. Since there are two second limiting plates 352 and they are spaced apart, there is one third limiting plate 353 and it is disposed on the two second limiting plates 352, and the third limiting plate 353 is disposed at the top of the first gap.

[0061] The third limiting plate 353, the second limiting plate 352, and the first limiting plate 351 jointly define an installation cavity for installing the mandrel 4. The top of the mandrel 4 is connected to the third limiting plate 353, and the bottom of the mandrel 4 is connected to the first limiting plate 351, so that the mandrel 4 is limited by the third limiting plate 353 and the first limiting plate 351 in the up and down directions respectively.

[0062] The bottom of the mandrel 4 and the first limiting plate 351 are detachably connected so that the mandrel 4 is fixed in the installation cavity, thereby fixing the position of the mandrel 4 to reduce the probability of the mandrel 4 being dragged and moved by the material, so that the mandrel is fixed more firmly.

[0063] The number of mandrels 4 is at least one. When the number of mandrels 4 is one, there is a detachable connection between the bottom surface of the mandrel 4 and the bottom surface of the first recess 3511, so that the mandrel 4 is fixed inside the first recess 3511, and the bottom of the mandrel 4 is limited in the left-right direction by the first recess 3511.

[0064] The upper-middle part of the mandrel 4 is located within the first gap, so that the upper-middle part of the mandrel 4 is limited in the left-right direction by the two second limit plates 352.

[0065] By installing the mandrel 4 within the installation cavity jointly defined by the third limit plate 353, the second limit plate 352, and the first limit plate 351, the mandrel 4 is limited in both the left-right direction and the up-down direction, reducing the probability of the position of the mandrel 4 changing during the pultrusion process. The mandrel 4 is inserted through the installation cavity. The distance between the left side surface of the mandrel 4 and the left inner wall of the installation cavity is greater than 0, that is, a lamination channel 32 is defined between the left side surface of the mandrel 4 and the installation cavity, and the material can be inserted through this lamination channel 32.

[0066] The distance between the right side surface of the mandrel 4 and the right inner wall of the installation cavity is greater than 0, that is, another lamination channel 32 is defined between the right side surface of the mandrel 4 and the installation cavity, and the material can be inserted through the lamination channel 32.

[0067] The mandrel 4 divides the installation cavity into two lamination channels 32, and one strand of material is inserted through each of the two lamination channels 32. During the movement of the two strands of material, due to the limitation of the mandrel 4, they will not get entangled or move chaotically.

[0068] The lamination channel 32 includes a first-layer lamination channel 32, a second-layer lamination channel 32, and a third-layer lamination channel 32 arranged vertically. It should be noted that the lamination channel 32 has at least two layers, not limited to the three-layer lamination channel 32 proposed in the embodiments of the present application.

[0069] At least one through hole extending along the first direction is provided on the bottom surface of the first limit plate 351. When the first limit plate 351 is connected above the first bottom plate 33, the inner wall of the through hole and the first limit plate 351 jointly form the lamination channel 32, so that the material can be inserted through the lamination channel 32 formed between the first limit plate 351 and the first bottom plate 33.

[0070] Optionally, two spaced-apart through holes are provided on the bottom surface of the first limit plate 351. The two spaced-apart through holes and the first limit plate 351 form two lamination channels 32, so that the material can be inserted through the two lamination channels 32 formed between the first limit plate 351 and the first bottom plate 33.

[0071] Optionally, the two through holes on the bottom surface of the first limiting plate 351 are symmetrically arranged, so that the two formed layered channels 32 are symmetrically arranged, so that during the pultrusion process of the material, the force on the first limiting plate 351 is more balanced, reducing the probability of damage to the first limiting plate 351.

[0072] At least one through hole extending along the first direction is provided on the top surface of the first limiting plate 351. The through hole is arranged on one side of the first recess 3511 and does not coincide with the first recess 3511. The second limiting plate 352 is cooperatively connected to the top of the first limiting plate 351. The bottom surface of the second limiting plate 352 and the through hole on the top surface of the first limiting plate 351 together form the layered channel 32, so that the material can pass through the layered channel 32 between the first limiting plate 351 and the second limiting plate 352.

[0073] Optionally, a gasket 36 is connected to the top surface of the first limiting plate 351, and the gasket 36 is arranged in the through hole on the top surface of the first limiting plate 351. The gasket 36, the inner wall of the through hole on the top surface of the first limiting plate 351 and the bottom surface of the second limiting plate 352 together form the layered channel 32, so that the material can pass through the layered channel 32.

[0074] Each gasket 36 has at least two positioning angles, and the positioning angles are correspondingly connected to the angles between the first connecting plate and the second connecting plate, so that the gasket 36 can be freely disassembled from the left and right sides of the layering module 3, facilitating disassembly and subsequent maintenance.

[0075] Optionally, a protruding portion protruding towards the first bottom plate 33 is provided on the bottom surface of the second limiting plate 352, and the protruding portion abuts against the through hole on the top surface of the first limiting plate 351, enhancing the connection stability between the first limiting plate 351 and the second limiting plate 352. The bottom surface of the second limiting plate 352 does not have a protruding portion at the position corresponding to the installation of the gasket 36 to facilitate the installation of the gasket 36 with a relatively large thickness.

[0076] Optionally, a through hole extending along the first direction is provided on the top surface of the third limiting plate 353. The through hole on the top surface of the third limiting plate 353 and the first top plate 34 together form the layered channel 32, so that the material can pass through the layered channel 32 between the third limiting plate 353 and the first top plate 34.

[0077] Optionally, two spaced-apart through holes are provided on the top surface of the third limiting plate 353. The two spaced-apart through holes and the first limiting plate 351 form two layered channels 32, so that the material can pass through the layered channel 32 between the third limiting plate 353 and the first top plate 34.

[0078] Optionally, the two through holes on the top surface of the third limiting plate 353 are symmetrically arranged, so that the two formed layered channels 32 are symmetrically arranged, so that during the pultrusion process, the force on the third limiting plate 353 is more balanced, reducing the probability of damage to the third limiting plate 353.

[0079] Optionally, the top surface of the third limiting plate 353 is an inclined plane, that is, there is an angle other than 0° between the top surface of the third limiting plate 353 and the horizontal plane, and the top surface of the third limiting plate 353 gradually slopes downward along the direction close to the preforming module 5, so that the outlet of the layered channel 32 on the third limiting plate 353 is close to the middle inlet of the preforming module 5, facilitating the transfer of the material into the preforming channel 51 in the middle of the preforming module 5.

[0080] Optionally, the shape and structure of the third limiting plate 353 and the first top plate 34 can be processed according to actual needs. The shape and number of the layered channels 32 can also be arbitrarily set according to actual needs, as long as the material can be passed through.

[0081] Optionally, the bottom surface of the first limiting plate 351 is an inclined bottom surface, and the bottom surface of the first limiting plate 351 gradually slopes upward along the direction close to the preforming module 5, so that the outlet of the layered channel 32 below the first limiting plate 351 is close to the middle inlet of the preforming module 5, facilitating the transfer of the material into the preforming channel 51 in the middle of the preforming module 5.

[0082] Optionally, the number of mandrels 4 is one. The bottom surface of the mandrel 4 is connected to the bottom surface of the first recess 3511, and there is a certain gap between the mandrel 4 and the left and right side walls of the installation cavity, so that two left and right gaps for passing the material are formed between the mandrel 4 and the installation cavity, enabling the mandrel 4 to exert an extrusion effect on the materials on both sides.

[0083] Optionally, the connection between the mandrel 4 and the first recess 3511 is detachable. The mandrel 4 and the first recess 3511 are formed separately and then connected by a connecting piece. When cleaning and disassembly are required, the mandrel 4 and the first recess 3511 are disassembled, which is convenient for cleaning and recycling.

[0084] Optionally, the mandrel 4 has a central axis extending in the vertical direction, the bottom surface of the first recess 3511 extends in the first direction, and the central axis of the mandrel 4 is perpendicular to the plane where the bottom surface of the first recess 3511 is located, so that the mandrel 4 is vertically installed in the first recess 3511.

[0085] Optionally, the mandrel 4 and the bottom surface of the first recess 3511 are connected in any way. The connection method between the mandrel 4 and the first recess 3511 is not fixed. As long as the connection method can fix the bottom surface of the mandrel 4 on the bottom surface of the first recess 3511, it is within the protection scope of this application.

[0086] Optionally, the mandrel 4 and the first recess 3511 are connected by bolts, so that the relative positions of the mandrel 4 and the first recess 3511 are fixed, so that the position of the mandrel 4 cannot be changed when the material passes through both sides of the mandrel 4 during the pultrusion process.

[0087] Optionally, the mandrel 4 is provided with bolt holes extending along the vertical direction, and the bottom surface of the first recess 3511 is provided with bolt holes opposite to the bolt holes of the mandrel 4, so that a bolt is inserted through the bottom surface of the mandrel 4 and the first recess 3511 to facilitate the fixed connection between the mandrel 4 and the first recess 3511.

[0088] Optionally, the mandrel 4 has at least one bolt hole extending along the vertical direction, and the number of bolt holes can be set according to the shape of the mandrel 4 and the shape of the first recess 3511 to meet the fixing requirements of different mandrels 4.

[0089] Optionally, the mandrel 4 is provided with at least two bolt holes extending along the vertical direction. The two bolt holes are independent of each other and are spaced apart, so that the connection between the mandrel 4 and the first recess 3511 is more stable.

[0090] Optionally, the mandrel 4 is provided with three bolt holes extending along the vertical direction, and the three bolt holes are spaced apart, so that the connection between the mandrel 4 and the first recess 3511 is more stable, and the probability of the mandrel 4 shifting in position during long-term use is reduced.

[0091] Optionally, the centers of the top openings of the three bolt holes are on the same straight line, so that the arrangement of the three bolt holes is more balanced, so that the mandrel 4 is more balanced in force during use, and further reduces the probability of the mandrel 4 shifting in position during long-term use.

[0092] Optionally, the mandrel 4 is a long strip structure similar to a cuboid. The lower bottom surface of the mandrel 4 is a plane, and the lower bottom surface of the first recess 3511 is a plane. The area of the lower bottom surface of the mandrel 4 in contact with the lower bottom surface of the first recess 3511 is relatively large. The lower bottom surface of the first recess 3511 gives an upward supporting force to the mandrel 4, so that the stress on the mandrel 4 during long-term use is more dispersed and will not concentrate in a certain area, so as to enhance the stability of the connection between the mandrel 4 and the first recess 3511.

[0093] Optionally, the mandrel 4 is a cylinder or other long bar-shaped body, and any mandrel 4 that can be fixedly connected to one of the laminated plates 31 is within the protection scope of this application.

[0094] Optionally, the mandrel 4 has an axisymmetric structure. The mandrel 4 has a symmetry axis extending along the vertical direction. The lamination module 3 is an axisymmetric component. The lamination module 3 has a symmetry axis extending along the vertical direction. The vertical symmetry axis of the lamination module 3 coincides with the vertical symmetry axis of the mandrel 4, so that the mandrel 4 is installed at the middle position of the lamination module 3. Materials are provided on both sides of the mandrel 4, so that the mandrel 4 is more balanced in force during the pultrusion process of the materials, and the probability of the position change of the mandrel 4 during long-term use is reduced.

[0095] Optionally, the extension length of the impregnation box 2 along the first direction is L1, and L1 can be set according to actual needs.

[0096] When the material needs to be impregnated in the impregnation box 2 for a long time, the length L1 of the impregnation box 2 can be set to be longer, that is, the impregnation box 2 is a longer box body, so that the impregnation effect of the material is better; when the material can meet the impregnation effect by being impregnated in the impregnation box 2 for a short time, the length L2 of the impregnation box 2 can be set to be shorter, that is, the impregnation box 2 is a shorter box body, which can appropriately reduce the material used for the impregnation box 2 and reduce the material cost.

[0097] Optionally, the extension length L1 of the impregnation box 2 along the first direction is proportional to the number of mandrels 4. The more the number of mandrels 4, the longer the extension length L1 of the impregnation box 2, so as to meet the impregnation requirements of the materials when different numbers of mandrels 4 are provided. When the material needs to be impregnated for a longer time, the extension length L1 of the impregnation box 2 is set to be longer, so that the time for the material to pass through the impregnation box 2 is longer when moving along the first direction. When the material needs to be impregnated for a shorter time, the extension length L1 of the impregnation box 2 is set to be shorter, so as to reduce the material used for the impregnation box 2 and also reduce the overall length of the pultruded profile forming device 100 and the occupied space.

[0098] The pultruded profile forming device 100 includes a preforming module 5 and a forming module 6. The preforming module 5 is connected to the material output end of the lamination module 3, and the forming module 6 is connected to the material output end of the preforming module 5, so that the material passes through the lamination module 3, the preforming module 5 and the forming module 6 in sequence.

[0099] Refer to Figure 7 , at least one preforming channel 51 is provided inside the preforming module 5. The number of preforming channels 51 is the same as that of the lamination channels 32, and the preforming channels 51 and the lamination channels 32 are arranged in one-to-one correspondence. The preforming channels 51 extend along the first direction, so that the materials in the lamination channels 32 enter the preforming channels 51.

[0100] The forming module 6 is arranged at the other end of the preforming module 5 along the first direction. At least one forming channel 61 is provided inside the forming module 6. The forming channel 61 is arranged opposite to the preforming channel 51, and the inlet of the forming channel 61 is arranged in one-to-one correspondence with the outlet of the preforming channel 51, so that the material enters the forming channel 61 after passing through the preforming channel 51. The material moves along the first direction and sequentially passes through the piercing plate 1, the dipping box 2, the layering module 3, the preforming module 5 and the forming module 6.

[0101] Optionally, a cavity for passing through the mandrel 4 is formed in the middle part of the preforming module 5. The shape of the cavity is related to the number and size of the mandrels 4; when the number of mandrels 4 is larger, the width of the cavity is larger; when the width of the mandrel 4 is larger, the width of the cavity is larger; when the mandrel 4 is higher, the height of the cavity is higher, so that mandrels 4 with different numbers and different shapes can be passed through the cavity of the preforming module 5 to meet different pultrusion requirements of the material.

[0102] Optionally, a cavity for passing through the mandrel 4 is formed in the middle part of the forming module 6. The shape of the cavity is related to the number and size of the mandrels 4. When the number of mandrels 4 is larger, the width of the cavity is larger; when the width of the mandrel 4 is larger, the width of the cavity is larger; when the mandrel 4 is higher, the height of the cavity is higher, so that mandrels 4 with different numbers and different shapes can be passed through the cavity of the preforming module 5 to meet different pultrusion requirements of the material.

[0103] Optionally, the cavity in the middle of the forming module 6 and the cavity in the middle of the preforming module 5 are arranged opposite to each other, so that the mandrel 4 is passed through the forming module 6 and the preforming module 5.

[0104] That is, the mandrel 4 is simultaneously passed through the cavities inside the layering module 3, the preforming module 5 and the forming module 6. One end of the mandrel 4 is connected to the piercing plate 1, the other end of the mandrel 4 is connected to the forming module 6, and the middle part of the mandrel 4 is passed through the forming module 6, the preforming module 5 and the layering module 3, so as to improve the stability of the mandrel 4, enhance the limiting effect of the mandrel 4 in the pultruded profile forming device 100, and enable the material to be pultruded and formed under the action of the mandrel 4.

[0105] Optionally, a third recess 62 is provided on the top surface of the second bottom plate 64, and a protruding portion is provided on the bottom surface of the side plate. The protruding portion of the side plate is connected to the third recess 62 of the second bottom plate 64 in a matching manner, so that the connection between the second bottom plate 64 and the side plate is more stable.

[0106] Optionally, the second bottom plate 64 is an axisymmetric structure, and two third recesses 62 symmetric about the axis of symmetry are provided on the second bottom plate 64, respectively for connecting the protruding portions on the two side plates, so that the connection between the two is more stable and the stress received is more balanced.

[0107] Optionally, a protruding portion is provided on the bottom surface of the second top plate 63, and a third recessed portion 62 is provided on the top surface of the side plate. The protruding portion of the second top plate 63 is fitted and connected within the third recessed portion 62 of the side plate, so as to make the connection between the second top plate 63 and the side plate more stable.

[0108] Optionally, the second top plate 63 is an axisymmetric structure, and two protruding portions symmetric about the axis of symmetry are provided on the second top plate 63, respectively for connecting the third recessed portions 62 on the two side plates, so as to make the connection between them more stable and the stress received more balanced.

[0109] Optionally, the preforming module 5 includes a third bottom plate 54, two side plates and a third top plate 53. The side plates are provided between the third top plate 53 and the third bottom plate 54, and the top end of the side plate is detachably connected to the third top plate 53, and the bottom end of the side plate is detachably connected to the third bottom plate 54, so as to facilitate the disassembly of the preforming module 5 and facilitate the maintenance of the preforming module 5.

[0110] The two side plates are symmetrically arranged, and there is a certain interval between the two side plates, so as to form a cavity between the two side plates, the third bottom plate 54 and the third top plate 53. A mandrel 4 is passed through the cavity, and the inner side wall of the cavity and the outer side wall of the mandrel 4 jointly form a preforming channel 51. The preforming channel 51 extends along the first direction. A cavity is formed between the two side plates, the second bottom plate and the second top plate, and a mandrel 4 is passed through the cavity. The inner side wall of the cavity and the outer side wall of the mandrel 4 jointly form a preforming channel 51. The preforming channel 51 extends along the first direction, and the inner side wall of the cavity and the outer side wall of the mandrel 4 jointly form a forming channel 61. The forming channel 61 extends along the first direction. The material enters the forming module 6 after passing through the preforming module 5 and is further solidified and formed in the forming module 6 to become the required profile.

[0111] Optionally, a second recessed portion 52 is provided on the top surface of the third bottom plate 54, and a protruding portion is provided on the bottom surface of the side plate. The protruding portion of the side plate is fitted and connected to the second recessed portion 52 of the third bottom plate 54, so as to make the connection between the third bottom plate 54 and the side plate more stable.

[0112] Optionally, the third bottom plate 54 is an axisymmetric structure, and two second recessed portions 52 symmetric about the axis of symmetry are provided on the third bottom plate 54, respectively for connecting the protruding portions on the two side plates, so as to make the connection between them more stable and the stress received more balanced.

[0113] Optionally, a protruding portion is provided on the bottom surface of the third top plate 53, and a second recessed portion 52 is provided on the top surface of the side plate. The protruding portion of the third top plate 53 is fitted and connected within the second recessed portion 52 of the side plate, so as to make the connection between the third top plate 53 and the side plate more stable.

[0114] Optionally, the third top plate 53 has an axisymmetric structure, and two protruding parts symmetrical about the axis of symmetry are provided on the third top plate 53, which are respectively used to connect the second recessed parts 52 on the two side plates, so as to make the connection between the two more stable and the stress received more balanced.

[0115] In some embodiments of the present application, a plane perpendicular to the first direction is defined as the first plane, and the geometric centers of the cross-sections obtained by the first plane cutting the layering module 3, the preforming module 5, and the forming module 6 of the present application are on the same straight line, and this straight line extends along the first direction, so as to facilitate the mandrel 4 to be placed at the center positions of the layering module 3, the preforming module 5, and the forming module 6, to facilitate the installation of the mandrel 4, and also to facilitate the installation and positioning between the layering module 3, the preforming module 5, and the forming module 6.

[0116] In some embodiments of the present application, the pultrusion profile forming device 100 further includes a fixing plate 7, and at least one fixing plate 7 is connected to the bottom or top of the layering module 3, the preforming module 5, and the forming module 6 to fixedly connect the three.

[0117] It should be noted that installation grooves are provided on the bottom surface of the layering module 3, the bottom surface and / or the top surface of the preforming module 5 and the forming module 6, and a fixing plate 7 is connected in the installation grooves of the layering module 3, the installation grooves of the preforming module 5, and the installation grooves of the forming module 6, so that the layering module 3, the forming module 6, and the preforming module 5 are positioned and installed and fixedly connected through the fixing plate 7.

[0118] Optionally, there are two fixing plates 7. One fixing plate 7 is connected to the top of the layering module 3, the preforming module 5, and the forming module 6, and the other fixing plate 7 is connected to the top of the layering module 3, the preforming module 5, and the forming module 6, so that the layering module 3, the preforming module 5, and the forming module 6 are installed with the fixing plate 7 as a positioning component, so that the installation and positioning of the layering module 3, the preforming module 5, and the forming module 6 are more accurate, and the positioning of the mandrel 4 during installation is more accurate, so as to improve the profile quality of the pultruded profile.

[0119] Optionally, the top surface of the fixing plate 7 is parallel to the horizontal plane, and the bottom surfaces of the layering module 3, the forming module 6, and the preforming module 5 connected above the fixing plate 7 are also parallel to the horizontal plane, reducing the probability of deviation during the installation of the layering module 3, the forming module 6, and the preforming module 5.

[0120] In some embodiments of the present application, the preforming module 5 is threadedly connected to the fixing plate 7, so that the preforming module 5 and the fixing plate 7 are detachably connected.

[0121] In some embodiments of the present application, the first bottom plate 33 is threadedly connected to the fixing plate 7 to enable detachable connection between the layering module 3 and the fixing plate 7. However, the connection manner between the first bottom plate 33 and the fixing plate 7 is not limited to threaded connection. Any other connection manner that can fix the first bottom plate 33 and the fixing plate 7 is within the protection scope of the present application.

[0122] When laying materials on the layering module 3, install the layering plate 31 at the bottom of the layering module 3, and lay the materials on the top surface of the installed layering plate 31; install the next layering plate 31 above the installed layering plate 31, and then lay the materials above the second layering plate 31; at least one layering plate 31 defines an installation cavity, install the mandrel 4 into the installation cavity, and detachably connect the top surface and the bottom surface of the mandrel 4 to the layering plate 31, so that the mandrel 4 is fixed in the installation cavity; repeat the above operations of installing the layering plate 31 and laying materials until the layering plate 31 at the top of the layering module 3 is installed, and stop laying materials on the top surface of the layering plate 31.

[0123] In the prior art, at least one profile channel and a mandrel 4 for limiting the profile are provided in the formed part. Since the position of the mandrel 4 will move with the movement of the profile, the mandrel 4 can only be gradually introduced into the cavity of the formed part from the outside after most components of the pultruded profile forming device 100 are assembled, resulting in wear or even breakage of the materials, which affects the product quality of the pultruded materials.

[0124] In the present application, the pultruded profile forming device 100 includes a layering module 3. The layering module 3 includes a plurality of layering plates 31. One or more layering plates 31 together form an installation cavity. In the present application, when installing one layer of layering plates 31, one layer of materials is laid on the layering plates 31, which can realize multi-strand threading of the materials in the layering module 3. And when the installation cavity is in an open state at the top, the mandrel 4 can be placed downward into the installation cavity, without the need to introduce the mandrel 4 into the installation cavity, reducing the wear of the materials during the introduction process of the mandrel 4. Moreover, the top and bottom of the mandrel 4 are respectively fixedly connected to the layering plate 31, and the positioning installation is accurate, so that the position of the mandrel 4 will not change during the movement of the materials, improving the quality and production efficiency of the produced profiles, and having significant progress compared with the prior art.

[0125] Embodiment Two The main difference between this Embodiment Two and Embodiment One is that: in this Embodiment Two, there are at least two mandrels 4, and the mandrels 4 are arranged horizontally from left to right. The following mainly describes the difference points between Embodiment Two and Embodiment One.

[0126] Refer to Figures 17 - 24, the mandrel 4 is inserted into the installation cavity. There are at least two mandrels 4, and a plurality of the mandrels 4 are arranged at intervals along the width direction of the installation cavity. Each mandrel 4 is connected to at least one lamination plate 31 so that the relative position between the mandrel 4 and the installation cavity remains unchanged, thereby fixing the mandrel 4 inside the installation cavity.

[0127] When the number of mandrels 4 is two, there is a gap between the two mandrels 4. The two mandrels 4 are arranged side by side, and the gap between the two mandrels 4 is elongated, so that materials can be inserted into the gap between the two mandrels 4 according to user needs, making the way of inserting materials more diversified.

[0128] Optionally, the number of mandrels 4 can be two or three or four or five. As long as the number of mandrels 4 is not less than two, it is within the protection scope of this application.

[0129] The bottom surfaces of a plurality of mandrels 4 are respectively connected to the first recessed portions 3511 so that the relative position between the mandrel 4 and the first recessed portion 3511 remains fixed, thereby fixing the mandrel 4 inside the first recessed portion 3511.

[0130] Optionally, the number of mandrels 4 is two, and the bottom surfaces of the two mandrels 4 are respectively connected to the first recessed portions 3511 to fix the mandrel 4 inside the first recessed portion 3511.

[0131] Optionally, the connection between the mandrel 4 and the first recessed portion 3511 is detachable. The mandrel 4 and the first recessed portion 3511 are integrally formed and then connected by a connecting member. When cleaning and disassembly are required, the mandrel 4 and the first recessed portion 3511 are disassembled, which is convenient for cleaning and recycling.

[0132] Optionally, the number of mandrels 4 is at least two. The connection between the bottom surface of the mandrel 4 and the bottom surface of the first recessed portion 3511 is detachable, and there is a certain gap between the mandrel 4 and the left and right side walls of the installation cavity. There is also a certain gap between a plurality of mandrels 4, so as to form a gap for inserting materials between the mandrel 4 and the installation cavity and between the mandrels 4, so that the mandrel 4 can play a role in extruding the materials on the left and right sides and the materials between a plurality of mandrels 4.

[0133] Optionally, bolt holes extending along the vertical direction are provided on the mandrel 4, and bolt holes opposite to the bolt holes of the mandrel 4 are provided on the bottom surface of the first recessed portion 3511, so that a bolt is inserted through the bottom surface of the mandrel 4 and the first recessed portion 3511 to facilitate the fixed connection between the mandrel 4 and the first recessed portion 3511.

[0134] Optionally, the mandrel 4 has at least one bolt hole extending along the vertical direction, and the number of bolt holes can be set according to the shape of the mandrel 4 and the shape of the first recess 3511 to meet the fixing requirements of different mandrels 4.

[0135] In this application, the positions and numbers of the bolt holes of the mandrel 4 can be set according to actual needs. The same number or different numbers of bolt holes can be set on different mandrels 4 as needed. As long as the technical solution with bolt holes provided on the mandrel 4 is within the protection scope of this application.

[0136] Optionally, the mandrel 4 has an axisymmetric structure, and the mandrel 4 has a symmetry axis extending along the vertical direction. The layering module 3 is an axisymmetric component, and the layering module 3 has a symmetry axis extending along the vertical direction.

[0137] The mandrel 4 array composed of multiple mandrels 4 is symmetrically arranged with respect to the vertical symmetry axis of the layering module 3, so that the force on the mandrel 4 is more balanced during the pultrusion process of the material, and the probability of the position change of the mandrel 4 during long-term use is reduced.

[0138] Optionally, the structures, shapes, and sizes of the multiple mandrels 4 are exactly the same, so that the stresses on the multiple mandrels 4 are more balanced.

[0139] In some other embodiments of this application, the structures, shapes, and sizes among the multiple mandrels 4 are completely different and can be set according to actual needs and existing materials.

[0140] In some other embodiments of this application, among the multiple mandrels 4, the structures, shapes, and sizes of some mandrels 4 are exactly the same, and the structures, shapes, and sizes of the other part of the mandrels 4 are completely different.

[0141] Optionally, the extension length L1 of the impregnation box 2 along the first direction is proportional to the number of mandrels 4. The more the number of mandrels 4, the longer the extension length L1 of the impregnation box 2, so as to meet the different impregnation requirements of the material when the pultrusion profile forming device is provided with different numbers of mandrels 4. When the material needs to be impregnated for a longer time, the extension length L1 of the impregnation box 2 is set longer, so that the time for the material to pass through the impregnation box 2 is longer when moving along the first direction. When the material needs to be impregnated for a shorter time, the extension length L1 of the impregnation box 2 is set shorter, so as to reduce the material used for the impregnation box 2 and also reduce the overall length of the pultrusion profile forming device 100 and the occupied space.

[0142] When the number of mandrels 4 is at least two, the extension length of the impregnation box 2 along the first direction is L20; compared with the extension length L10 of the impregnation box 2 along the first direction when the number of mandrels 4 is one, L20 is not less than L10, so as to meet the different impregnation requirements of the material.

[0143] Optionally, the number of mandrels 4 is two, and the extension length of the dipping box 2 in the first direction is L20. Compared with the technical solution where the number of mandrels 4 is one and the extension length of the dipping box 2 in the first direction is L10, L20 > L10. That is, when the number of mandrels 4 is two, the dipping box 2 is a longer box body, and when the number of mandrels 4 is one, the dipping box 2 is a shorter box body, so as to meet the dipping requirements of the material under different conditions.

[0144] Optionally, a lid 8 is provided on the top of the dipping box 2. There is an opening on the top of the dipping box 2, and the lid 8 is connected at the opening to cover the internal space of the dipping box 2, reduce the entry of foreign objects in the external environment into the dipping box 2, reduce the pollution of the flowable glue inside the dipping box 2, and also reduce the probability of the flowable glue in the dipping box 2 splashing or diffusing into the external environment, so as to reduce the waste of the flowable glue.

[0145] Optionally, the top surface of the second bottom plate 64 is a plane, the bottom surface of the side plate is a plane, and the top surface of the second bottom plate 64 and the bottom surface of the side plate are connected in a mating manner. The contact area between the two planes is large, so that the two planes can be stably connected.

[0146] Optionally, the top surface of the side plate is a plane, the bottom surface of the second top plate 63 is a plane, and the bottom surface of the second top plate 63 and the top surface of the side plate are connected in a mating manner. The two planes are fitted and the contact area is large, so that the two planes can be stably connected.

[0147] Optionally, the top surface of the third bottom plate 54 and the bottom surface of the side plate of the preforming module are respectively planes, and the top surface of the third bottom plate 54 is connected in a mating manner to the bottom surface of the side plate, which is convenient for the mating connection between the third bottom plate 54 and the side plate, has a large fitting area, and the connection is more stable.

[0148] Optionally, the bottom surface of the third top plate 53 and the bottom surface of the side plate of the preforming module are respectively planes, and the bottom surface of the third top plate 53 is connected to the top surface of the side plate. The fitting area between the two is large, the installation is convenient, and the connection is more stable.

[0149] Embodiment III The main difference between this Embodiment III and Embodiment I is that: in this Embodiment III, there are two mandrels 4, and the two mandrels 4 are arranged one above the other in the height direction. The following mainly describes the differences between Embodiment II and Embodiment I.

[0150] Refer to Figures 25 - 32 , the mandrel 4 is inserted into the installation cavity. There are at least two mandrels 4, and the multiple mandrels 4 are spaced apart along the height direction of the installation cavity. Each mandrel 4 is connected to at least one layer plate 31, so that the relative position between the mandrel 4 and the installation cavity remains unchanged, thereby fixing the mandrel 4 inside the installation cavity.

[0151] When the number of mandrels 4 is two, there is a gap between the two mandrels 4. The two mandrels 4 are arranged side by side, and the gap between the two mandrels 4 is strip-shaped, so that materials can be threaded through the gap between the two mandrels 4 according to user needs, making the threading method of the materials more diverse.

[0152] Optionally, the number of mandrels 4 can be two, three, four, or five. As long as the number of mandrels 4 is not less than two, it is within the protection scope of this application.

[0153] When the number of mandrels 4 is at least two, the multiple mandrels 4 are arranged at intervals up and down to form a horizontal gap. Materials can be threaded through the horizontal gap, and the size and position of the horizontal gap between the mandrels 4 can be set according to actual needs to form different methods of threading materials to meet the requirements of different material pultrusion molding.

[0154] The bottom surface of the lowermost mandrel 4 is detachably connected to the first recess 3511, so that the relative position between the lowermost mandrel 4 and the first recess 3511 is kept fixed, thereby fixing the mandrel 4 inside the first recess 3511.

[0155] The top surface of the uppermost mandrel 4 is connected to the upper side wall of the installation cavity, so that the position of the lowermost mandrel 4 and the installation cavity is kept fixed.

[0156] Optionally, when the number of mandrels 4 is two, the two mandrels 4 are respectively connected to the upper side wall and the lower side wall of the installation cavity, so as to form a horizontal gap between the two mandrels 4. Materials can be threaded through the horizontal gap, and the up-and-down arrangement of the two mandrels 4 can meet the threading requirements of different materials during pultrusion molding.

[0157] Optionally, when the number of mandrels 4 is multiple, the multiple mandrels 4 are respectively connected to the side walls of the installation cavity to realize the up-and-down arrangement and fixation of the multiple mandrels 4 in the installation cavity. The number of mandrels 4 is not limited to two, and two or more mandrels 4 are within the protection scope of this application.

[0158] Optionally, the bottom surface of the lowermost mandrel 4 is detachably connected to the bottom surface of the first recess 3511, and there is a certain gap between the lowermost mandrel 4 and the left side wall and the right side wall of the installation cavity. A certain horizontal gap is also formed between the multiple mandrels 4, so as to form gaps for threading materials between the mandrel 4 and the installation cavity and between the mandrels 4, so that the mandrel 4 can play a role in pultruding and forming the materials on the left and right sides and the materials between the multiple mandrels 4.

[0159] Optionally, multiple mandrels 4 are arranged vertically, and the length direction of the mandrels 4 is arranged along the horizontal direction of the installation cavity, so that at least two mandrels 4 are horizontally connected in the installation cavity, and a horizontal gap is formed between two adjacent mandrels 4.

[0160] Optionally, the mandrel 4 at the bottommost is connected to the bottom surface of the first recess 3511 in any manner. The connection manner between the mandrel 4 and the first recess 3511 is not fixed, and any connection manner that can fix the bottom surface of the mandrel 4 to the bottom surface of the first recess 3511 is within the protection scope of this application.

[0161] Optionally, the mandrel 4 at the bottommost is connected to the first recess 3511 by bolts, so that the relative positions of the mandrel 4 and the first recess 3511 are fixed, and the position of the mandrel 4 cannot be changed when the material passes through the outside of the mandrel 4 during the pultrusion process.

[0162] Optionally, the mandrel 4 at the bottommost is provided with bolt holes extending along the vertical direction, and the bottom surface of the first recess 3511 is provided with bolt holes opposite to the bolt holes of the mandrel 4, so that a bolt passes through the mandrel 4 and the bottom surface of the first recess 3511 to facilitate the fixed connection between the mandrel 4 and the first recess 3511.

[0163] Optionally, the mandrel 4 at the topmost is connected to the upper side wall of the installation cavity in any manner. The connection manner between the mandrel 4 and the upper side wall of the installation cavity is not fixed, and any connection manner that can fix the top surface of the mandrel 4 at the topmost to the upper side wall of the installation cavity is within the protection scope of this application.

[0164] Optionally, the mandrel 4 at the topmost is connected to the upper side wall of the installation cavity by bolts, so that the relative positions of the mandrel 4 and the upper side wall of the installation cavity are fixed, and the position of the mandrel 4 cannot be changed when the material passes through the outside of the mandrel 4 during the pultrusion process.

[0165] Optionally, the mandrel 4 at the topmost is provided with bolt holes extending along the vertical direction, and the upper side wall of the installation cavity is provided with bolt holes opposite to the bolt holes of the mandrel 4, so that a bolt passes through the mandrel 4 and the upper side wall of the installation cavity to facilitate the fixed connection between the mandrel 4 at the topmost and the upper side wall of the installation cavity.

[0166] In this application, the positions and numbers of the bolt holes of the mandrel 4 can be set according to actual needs. The same number or different numbers of bolt holes can be set on different mandrels 4 as needed. Any technical solution with bolt holes provided on the mandrel 4 is within the protection scope of this application.

[0167] Optionally, the mandrel 4 is provided with at least two bolt holes extending in the vertical direction. The two bolt holes are independent of each other and are spaced apart to make the connection between the mandrel 4, the first recess 3511 and the upper side wall of the installation cavity more stable.

[0168] Optionally, the mandrel 4 is provided with three bolt holes extending in the vertical direction. The three bolt holes are spaced apart to make the connection between the mandrel 4, the first recess 3511 and the upper side wall of the installation cavity more stable, and reduce the probability of the mandrel 4 shifting in position during long-term use.

[0169] Optionally, the mandrel 4 has a long strip structure similar to a cuboid. The lower bottom surface of the lowermost mandrel 4 is a plane, and the lower bottom surface of the first recess 3511 is a plane. The area of contact between the lower bottom surface of the mandrel 4 and the lower bottom surface of the first recess 3511 is relatively large. The lower bottom surface of the first recess 3511 provides an upward supporting force to the mandrel 4, so that the stress on the mandrel 4 during long-term use is more dispersed and will not concentrate in a certain area, thereby enhancing the stability of the connection between the mandrel 4 and the first recess 3511.

[0170] Optionally, the mandrel 4 has a long strip structure similar to a cuboid. The upper top surface of the uppermost mandrel 4 is a plane, and the upper side wall of the installation cavity is a plane. The area of contact between the top surface of the mandrel 4 and the upper side wall of the installation cavity is relatively large, so that the supporting stress on the mandrel 4 during long-term use is more dispersed and will not concentrate in a certain area, thereby enhancing the stability of the connection between the mandrel 4 and the upper side wall of the installation cavity.

[0171] Optionally, the mandrel 4 has an axisymmetric structure, and the mandrel 4 has a symmetry axis extending in the horizontal direction.

[0172] The layering module 3 is an axisymmetric component, and the layering module 3 has a symmetry axis extending in the horizontal direction.

[0173] The mandrel 4 array composed of a plurality of mandrels 4 arranged up and down is symmetrically arranged with respect to the horizontal symmetry axis of the layering module 3, so that the force on the mandrel 4 during the pultrusion process of the material is more balanced, and the probability of the mandrel 4 changing its position during long-term use is reduced.

[0174] Optionally, the structures, shapes and sizes of the plurality of mandrels 4 are exactly the same, so that the stress on the plurality of mandrels 4 is more balanced.

[0175] In other embodiments of the present application, the structures, shapes and sizes of the plurality of mandrels 4 are completely different, and can be set according to actual requirements and existing materials.

[0176] In some other embodiments of the present application, among the multiple mandrels 4, the structures, shapes, and sizes of some of the mandrels 4 are exactly the same, while those of the other part of the mandrels 4 are completely different.

[0177] Optionally, the top surface of the second bottom plate 64 is a flat surface, the bottom surface of the side plate is a flat surface, and the top surface of the second bottom plate 64 is connected in cooperation with the bottom surface of the side plate. The contact area between the two flat surfaces is relatively large, so that the two flat surfaces can be stably connected.

[0178] Optionally, the top surface of the side plate is a flat surface, the bottom surface of the second top plate 63 is a flat surface, and the bottom surface of the second top plate 63 is connected in cooperation with the top surface of the side plate. The two flat surfaces are in contact and the contact area is relatively large, so that the two flat surfaces can be stably connected.

[0179] Optionally, the top surface of the third bottom plate 54 and the bottom surface of the side plate of the preforming module 5 are respectively flat surfaces, and the top surface of the third bottom plate 54 is connected in cooperation with the bottom surface of the side plate, which is convenient for the cooperation and connection between the third bottom plate 54 and the side plate, and the fitting area is relatively large, and the connection is more stable.

[0180] Optionally, the bottom surface of the third top plate 53 and the bottom surface of the side plate of the preforming module 5 are respectively flat surfaces, and the bottom surface of the third top plate 53 is connected to the top surface of the side plate. The fitting area between the two is relatively large, the installation is convenient, and the connection is more stable.

[0181] In one embodiment of the present application, the pultrusion profile forming method is described in detail below: S1. The material is divided into multiple strands and passed through the threading plate 1, and the multiple strands of material are independent of each other; S2. The multiple strands of material enter the dipping box 2 after passing through the threading plate 1; S31. Install the first bottom plate 33. The installation groove at the bottom of the first bottom plate 33 is connected in cooperation with the fixing plate 7, and the material is laid above the first bottom plate 33, and the material is placed at the through hole corresponding to the bottom surface of the first limiting plate 351; S32. Install the first limiting plate 351 on the top of the first bottom plate 33, and lay the material in the through hole on the top surface of the first limiting plate 351 and in the first recess 3511; S33. Install the second limiting plate 352 on the top surface of the first limiting plate 351, and install the gasket 36 in the gap between the first limiting plate 351 and the second limiting plate 352; S34. Fix and install the mandrel 4 in the first recess 3511, and pass the mandrel 4 through the material already laid in the installation cavity, so that the material is in contact with the mandrel 4; S35. Install the third limiting plate 353 on the top surface of the second limiting plate 352, and lay the material in the through hole on the top of the third limiting plate 353; S36. Install the first top plate 34 on the top of the third limit plate 353, and cooperate and connect between the installation groove on the top of the first top plate 34 and the fixed plate 7; S4. Position and install the forming module 6 and the pre-forming module 5 through the fixed plate 7, so that the lamination channel 32, the pre-forming channel 51 and the forming channel 61 communicate with each other, so that the material passes through the lamination module 3, the pre-forming module 5 and the forming module 6; S5. Start the machine, the glue injection machine works, the impregnation box 2 is filled with flowable glue, the material is infiltrated by the flowable glue in the impregnation box 2, and the material moves along the first direction and passes through the perforated plate 1, the impregnation box 2, the lamination module 3, the pre-forming module 5 and the forming module 6 in sequence, and then is pulled and extruded into the required profile.

[0182] 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 them; although the present invention 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 on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pultrusion profile forming device, characterized in that: include: A penetration plate, on which at least two through holes are provided, one of the through holes being used for penetrating at least one strand of material; A glue dipping box, which is arranged on one side of the material output of the penetration plate, and the glue dipping box is connected to the glue injection machine and is used to soak the material in the glue dipping box; A stratification module, which is arranged on one side of the material output of the dipping box, and the stratification module is provided with a stratification channel extending along a first direction, and the first direction is the moving direction of the material during the pultrusion profile forming process; There are at least two layered channels, and the layered channels are used to pass the material soaked in the dipping box.

2. The pultrusion profile forming device according to claim 1, characterized in that: The layered module includes at least two layered plates arranged vertically, and at least two layered channels are formed between the plurality of layered plates; the plurality of layered channels are arranged vertically at intervals, and the layered channels extend along a first direction and penetrate the layered module.

3. The pultrusion profile forming device according to claim 2, characterized in that: The layered plate comprises: A first bottom plate and a first top plate, wherein the first bottom plate and the first top plate are arranged opposite to each other; A limiting member connected between the first bottom plate and the first top plate; The pultrusion profile forming device also includes a core rod. An installation cavity for inserting the core rod is formed in the limiting member. The installation cavity passes through the limiting member and extends along a first direction. The core rod is fixedly connected in the installation cavity.

4. The pultrusion profile forming device according to claim 3, characterized in that: The limiting member includes a first limiting plate, a second limiting plate and a third limiting plate which are connected in sequence from bottom to top, the first limiting plate is connected to the bottom of the mandrel, the third limiting plate is connected to the top of the mandrel, there are two second limiting plates which are arranged at intervals, and the mandrel is at least partially arranged between the two second limiting plates.

5. The pultrusion profile forming device according to claim 3, characterized in that: The limiting member includes a first limiting plate, a bottom surface of which is provided with a through hole extending along a first direction, and the first limiting plate is connected to the top of the first bottom plate to form a first layered channel between the first limiting plate and the first bottom plate.

6. The pultrusion profile forming device according to claim 5, characterized in that: A through hole extending along a first direction is provided on the top surface of the first limiting plate. The limiting member further includes a second limiting plate. A second layered channel is formed between the first limiting plate and the second limiting plate.

7. The pultrusion profile forming device according to claim 6, characterized in that: The limiting member includes a third limiting plate connected between the second limiting plate and the first top plate, and a through hole is provided on the top surface of the third limiting plate to form a third layered channel between the third limiting plate and the first top plate.

8. The pultrusion profile forming device according to claim 1 or 2, characterized in that: It also includes a preforming module and a forming module, wherein the preforming module is connected to one end of the output material of the layering module, and the forming module is connected to one end of the output material of the preforming module.

9. The pultrusion profile forming device according to claim 8, characterized in that: It also includes at least one fixing plate, wherein one fixing plate is connected to the bottom or top of the layering module, the preforming module and the forming module.

10. A pultrusion profile forming method, using the pultrusion profile forming device according to any one of claims 3 to 7, characterized in that: When laying materials on the layered module, a layered board located at the bottom of the layered module is installed, and the materials are laid on the top surface of the installed layered board; Install the next layered board on top of the installed layered board, and then lay the material on top of the second layered board; At least one of the layered plates defines an installation cavity, a mandrel is installed in the installation cavity, and the top and bottom surfaces of the mandrel are detachably connected to the layered plate so that the mandrel is fixed in the installation cavity; Repeat the above operations of installing the layered boards and laying materials until the layered board at the top of the layered module is installed, and stop laying materials on the top surface of the layered boards.

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