Carbon fiber heat insulation felt making forming equipment and process

Abstract

This invention relates to the field of carbon felt production technology, and particularly to a carbon fiber insulation felt manufacturing equipment and process. The equipment includes a high-speed web-laying machine, and further includes: a folding mechanism, located behind the high-speed web-laying machine and used to process and fold the fiber cloth formed by the high-speed web-laying machine; a pre-treatment component for cutting and applying adhesive to the fiber cloth, and a folding component located behind the pre-treatment component for folding the fiber cloth; a needle-punching mechanism, located behind the folding component and used to needle-punch the folded fiber cloth, including a needle-punching machine and an edge-locking component used in conjunction with the needle-punching machine; and a supplementary mechanism, located behind the needle-punching mechanism and used to uniformly coat the adhesive within the needle-punched insulation felt, assisting in the subsequent curing of the insulation felt. This solves the technical problems of long impregnation time and poor impregnation effect.

Description

Technical Field

[0001] This invention relates to the field of carbon felt production technology, and in particular to a carbon fiber thermal insulation felt manufacturing equipment and process. Background Technology

[0002] Carbon fiber surface mat is a non-woven carbon fiber mat made from chopped carbon fiber filaments that have been dispersed and loosened, then formed using a wet-process method. It features uniform fiber distribution, a smooth surface, high air permeability, and strong adsorption. It is used in various fields and composite materials. It can fully utilize the excellent properties of carbon fiber materials and effectively reduce costs. It is a new type of high-performance material.

[0003] Patent document CN112503947A discloses a device for producing carbon fiber felt, which consists of two furnace bodies: a foaming furnace and a carbonization furnace. The foaming furnace and the carbonization furnace are connected by a sealed first atmosphere buffer box to prevent external air from entering. The foaming furnace is used to prepare a high-porosity carbon fiber felt precursor through a foaming process. The foaming furnace mainly consists of a screw conveyor mechanism, a heating device, and a gas introduction device. The carbonization furnace is used to heat-treat the carbon fiber felt precursor to obtain the final product. The carbonization furnace mainly consists of a heating device and a traction device.

[0004] However, in actual use, the carbon felt production process requires impregnating the carbon felt with resin first, and then curing it after the carbon felt is completely impregnated. The impregnation time of the carbon felt is long and there is a risk of incomplete impregnation, which can easily affect the product quality. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by setting up a folding mechanism and a supplementary mechanism. By folding the fiber cloth, the impregnation process is eliminated, and the production and molding are carried out by coating resin on one side while folding. This solves the technical problems of long impregnation time and poor impregnation effect.

[0006] To address the above technical issues, the following technical solution is adopted:

[0007] A carbon fiber thermal insulation felt manufacturing equipment includes a high-speed web laying machine, and also includes:

[0008] A folding mechanism is provided behind the high-speed web laying machine and is used to process and fold the fiber cloth formed by the high-speed web laying machine. The folding mechanism includes a pretreatment component for cutting and gluing the fiber cloth and a folding component provided behind the pretreatment component for folding the fiber cloth.

[0009] A needle punching mechanism, which is located behind the folding assembly and is used to needle punch the folded fiber cloth, includes a needle punching machine and an edge locking assembly used in conjunction with the needle punching machine;

[0010] A supplementary mechanism is provided behind the needle-punching mechanism and is used to uniformly coat the adhesive inside the insulation felt after needle-punching, thereby assisting in the subsequent curing of the insulation felt.

[0011] Preferably, the pretreatment component includes a punching component for regularly punching holes in the fiber cloth, a cutting component for cutting the fiber cloth, and an adhesive application component for applying adhesive in conjunction with the folding component. The punching component includes a punching knife located behind the high-speed web laying machine and moving up and down under the control of an electric cylinder, and an opening cam located below the punching knife and rotating under the control of a motor.

[0012] Preferably, the cutting component includes two sets of cutting blades arranged symmetrically on both sides of the conveyor belt and located behind the punching component, a cutting knife located behind the cutting blades, and a hinge plate for fixing the cutting blades and the cutting knife and hinged to the frame by a motor.

[0013] It also includes a cutter positioned behind the cutting blade to cut the fiber cloth as a whole.

[0014] Preferably, the coating component includes an upper coating roller disposed behind the cutting component and moved by an electric cylinder, a support roller disposed obliquely below the rear side of the upper coating roller, and a lifting plate for fixing the upper coating roller and the support roller.

[0015] The lower coating roller is located diagonally below the rear side of the idler roller and its up-and-down movement is controlled by a telescopic cylinder; the slide rail is used to drive the lower coating roller to slide horizontally.

[0016] Preferably, the folding assembly includes a pressing component disposed behind the adhesive coating component and two sets of fixing components for fixing the front and rear ends of the fiber cloth respectively. Each set of fixing components includes a transition block disposed on both sides of the conveyor belt and raised and lowered by an electric cylinder, a pressure rod hinged to the transition block by a motor, and multiple fixing pins disposed on the lower end face of the pressure rod.

[0017] The pressing component includes a pressing plate located at the rear end of the fiber cloth and having multiple fixed needles at its lower end. The two ends of the pressing plate are connected to the frame by threads, and the slide rail drives the pressing plate to move up and down through a gear and rack transmission. It also includes a needle-punching roller located behind the pressing plate.

[0018] Preferably, the edge-locking assembly is located in front of the needle punching machine and includes a positioning component and an edge-collecting component. The positioning component includes constraint plates located on both sides of the conveyor belt, a lever located at the end of the constraint plate, four sets of fixed plates located above the constraint plates, a central frame vertically and slidably connected to the center of the constraint plates by a telescopic cylinder, an extension rod fixedly connected to each set of constraint plates and horizontally and slidably connected to the central frame, and a support rod vertically and slidably connected to the middle of the central frame.

[0019] Preferably, the edge trimming component includes two sets of control frames disposed on the outside of the constraint plate, and four sets of sliding plates are slidably connected to the two sets of control frames via electric cylinders. The upper surface of the sliding plates is a smooth arc shape and the lower surface is in close contact with the surface of the conveyor belt.

[0020] Preferably, the supplementary mechanism is located behind the needle punch and includes clamping plates on both sides of the transmission belt for clamping the fiber felt, a support rod in the middle of the transmission belt that is raised and lowered by an electric cylinder, and an inclined roller above the support rod that is rotated along one end by a motor.

[0021] Preferably, the supplementary mechanism also includes a top ring disposed on the outside of the support rod and raised and lowered by a motor, with a fixed needle on its upper surface; a turntable for controlling the rotation of the top ring; and a needle-piercing plate disposed on the outside of the two sets of clamping plates and moved horizontally by an electric cylinder.

[0022] As another preferred embodiment, the carbon fiber insulation felt manufacturing process is applied to a carbon fiber insulation felt manufacturing equipment and includes the following steps:

[0023] Step 1, cutting step: Use the punching tool to punch regularly arranged holes in the middle of the fiber cloth, and then use the cutting tool to cut and trim the edges of the fiber cloth, cutting off the excess parts on both sides of the fiber cloth. After cutting, it is divided into sections. The section of fiber cloth cut off completes the production of one piece of thermal insulation felt.

[0024] Step 2, Folding Step: Fold the cut fiber cloth. First, apply resin to the top of the bottom layer of fiber cloth and fix it with fasteners. Then, by moving the lower glue roller, the fiber cloth is folded while being glued, and the fiber cloth is folded into a whole.

[0025] Step 3, needle punching step: The folded fiber cloth enters the edge locking assembly. The center frame moves down to fix the center of the fiber cloth. At the same time, the driving fixing plate presses down the excess burrs around the fiber cloth. Then, the pressed-down burrs are squeezed into the bottom of the fiber cloth by the slide plate to tighten and lock the edges. Then, it is fed into the needle punching machine for needle punching.

[0026] Step four, supplementary steps: The needle-punched fiber cloth has become a complete fiber felt. The two sides of the fiber felt are clamped by clamping plates, and then the struts are raised, making the middle of the fiber felt higher and the edges lower. The rotation of the inclined rollers causes the resin in the middle to be squeezed to the edges. At the same time, the needle-punching plates on the outside of the clamping plates needle the sides of the fiber felt. After the needle-punching of both sides is completed, the top ring is raised, the clamping plates are loosened, the fiber felt is rotated 90°, and the fiber felt is clamped and needle-punched again to complete the production process.

[0027] The beneficial effects of this invention are:

[0028] (1) In this invention, by setting a folding mechanism, a whole section of fiber cloth is arranged by folding, and resin is coated during the folding process. On the one hand, it can effectively improve the overall integrity and consistency of the finished board, and on the other hand, it can save the impregnation step in the normal production process, improve production efficiency, and ensure production quality.

[0029] (2) In this invention, by setting a needle punching mechanism to cooperate with the folding mechanism, the four sides of the fiber felt are processed. By locking the edges, on the one hand, the board can be prevented from delaminating at the folding gaps, and on the other hand, the resin leakage is reduced, making the whole board more uniform after molding.

[0030] (3) In this invention, by supplementing the needle punching mechanism, the setting of the inclined roller can effectively promote the flow of excess resin to the surrounding edges, fill the locking position, and needle punch the side of the fiber felt to further promote the mutual entanglement of fibers, making the fibers in the board more tightly bonded. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the overall structure of a carbon fiber insulation felt manufacturing equipment.

[0033] Figure 2 This is a schematic diagram of the folded state of the thermal insulation felt.

[0034] Figure 3 This is a schematic diagram of the preprocessing component.

[0035] Figure 4 This is a structural diagram of the cut-out part.

[0036] Figure 5 This is a structural diagram of the glued part.

[0037] Figure 6 This is a schematic diagram showing the working state of the glued part.

[0038] Figure 7 This is a schematic diagram of the folding component.

[0039] Figure 8 This is a structural schematic diagram of the positioning component.

[0040] Figure 9 This is a schematic diagram of the relevant structure of the positioning component.

[0041] Figure 10 A structural diagram of the supplementary mechanism.

[0042] Figure 11 A diagram illustrating the working status of the supplementary mechanism.

[0043] Figure 12 This is a schematic diagram of the process flow for manufacturing carbon fiber thermal insulation felt. Detailed Implementation

[0044] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0045] Example 1

[0046] like Figure 1 , Figure 2 As shown, a carbon fiber thermal insulation felt manufacturing equipment includes a high-speed web laying machine 0, and also includes:

[0047] Folding mechanism 1, which is located behind the high-speed web laying machine 0 and is used to process and fold the fiber cloth formed by the high-speed web laying machine 0, includes a pretreatment component 11 for cutting and gluing the fiber cloth, and a folding component 12 located behind the pretreatment component 11 for folding the fiber cloth.

[0048] The needle punching mechanism 2 is located behind the folding assembly 12 and is used to needle punch the folded fiber cloth. It includes a needle punching machine 21 and a locking assembly 22 used in conjunction with the needle punching machine 21.

[0049] The supplementary mechanism 3 is located behind the needle-punching mechanism 2 and is used to uniformly coat the adhesive inside the insulation felt after needle-punching, thereby assisting in the subsequent curing of the insulation felt.

[0050] In this embodiment, the forming process of a carbon fiber insulation felt board is completed by setting a folding mechanism 1, a needle punching mechanism 2 and a supplementing mechanism 3. The insulation felt board is formed by folding a section of fiber cloth and coating it with resin during the folding process, thereby eliminating the need for a lengthy impregnation process of the insulation felt in the future.

[0051] In detail, for this type of thermal insulation felt, the fiber cloth is formed by a high-speed web laying machine 0, stacking a section of fiber cloth back and forth, and coating a layer of resin with each stacked layer of fiber cloth. The fiber cloth is then cut so that each section of fiber cloth can leave a certain amount of excess burr. The burr is used to lock the edges of the fiber cloth, which improves the integrity of the fiber felt and prevents the resin from seeping out from the edges. Then, the needle punching machine 21 is used to make the fiber felt into a whole. At the same time, the needle punching machine 21 can also promote the diffusion of the internal resin to a certain extent, so that the resin fills the entire fiber felt. Finally, the sides of the locked edges are treated so that the fiber cloth on the sides is also integrated into the entire fiber felt, avoiding dead corners of needle punching.

[0052] Furthermore, such as Figure 3 As shown, the pretreatment component 11 includes a punching component 111 for regularly punching holes in the fiber cloth, a cutting component 112 for cutting the fiber cloth, and an adhesive application component 113 for applying adhesive in conjunction with the folding component 12. The punching component 111 includes a punching knife 1111 located behind the high-speed web laying machine 0 and moving up and down under the control of an electric cylinder, and an opening cam 1112 located below the punching knife 1111 and rotating under the control of a motor.

[0053] In this embodiment, the fiber cloth is perforated by the perforating component 111. The fiber cloth is supported by the perforating cam 1112 when it rotates to the top. At this time, the perforating knife 1111 moves down intermittently to punch regular holes in the fiber cloth. When perforation is not needed, the perforating cam 1112 rotates down, and the fiber cloth passes through normally.

[0054] In detail, the perforation of the fiber cloth requires precise control of the perforation position. After the fiber cloth is folded, the positions of the holes on each layer of fiber cloth should correspond one-to-one. The position of the holes should be designed according to the number of folded layers of fiber cloth. For example, the fiber cloth in the middle position is used as the axis, and the fiber cloth on both sides is perforated, but the fiber cloth near the outer edge is not perforated. This creates cavities inside the fiber felt after it is formed. The cavities formed by the holes of the multiple layers of fiber cloth can accommodate resin. The existence of the cavities can accelerate the penetration of resin between the layers and make the resin distribution more uniform. On the other hand, the resin can fill the cavities, thereby improving the integrity of the fiber cloth after stacking and curing. After curing, the resin in the cavities is equivalent to the reinforcing ribs in the middle of the fiber cloth, ensuring the overall orientation and strength of the insulation felt and preventing slippage between the layers of the insulation felt, which would cause a decrease in strength.

[0055] Furthermore, such as Figure 3 , Figure 4As shown, the cutting component 112 includes two sets of cutting blades 1121 disposed behind the punching component 111 and symmetrically arranged on both sides of the conveyor belt, a cutting blade 1122 disposed behind the cutting blades 1121, and a hinge plate 1123 for fixing the cutting blades 1121 and the cutting blade 1122 and hinged to the frame by a motor.

[0056] It also includes a cutter 1124 located behind the cutter 1122 for overall cutting of the fiber cloth.

[0057] In this embodiment, each section of fiber cloth is cut by setting a cutter 1124, and each section of fiber cloth can be used to make a finished thermal insulation felt. The sides of each section of fiber cloth are trimmed by using a cutter 1122 and a cutting blade 1121 so that the top layer of the fiber cloth can form a burr when folded.

[0058] In detail, when the hinge plate 1123 is pressed down, the cutting blade 1121 contacts both sides of the fiber cloth and cuts both sides of the fiber cloth. Together with the cutter 1122, the waste material is separated from the fiber cloth, so that the back section of each fiber cloth is wider than the front section by a certain distance. This distance should be able to completely cover the side of the finished insulation felt.

[0059] It should be noted that the length of each fold of the fiber cloth needs to be calculated precisely, and the length and width of the latter part should be larger. When the top layer is folded, the four sides of the top layer should form a burr, that is, an extra section, to facilitate the subsequent overlocking.

[0060] Furthermore, such as Figure 5 , Figure 6 As shown, the gluing component 113 includes an upper gluing roller 1131 located behind the cutting component 112 and moved by an electric cylinder, a support roller 1132 located obliquely below the rear side of the upper gluing roller 1131, and a lifting plate 1133 for fixing the upper gluing roller 1131 and the support roller 1132.

[0061] The lower glue-applying roller 1134 is located diagonally below the rear side of the idler roller 1132 and its up-and-down movement is controlled by a telescopic cylinder. The slide rail 1135 is used to drive the lower glue-applying roller 1134 to slide horizontally.

[0062] In this embodiment, resin is applied to the fiber cloth by setting an upper coating roller 1131 and a lower coating roller 1134, so that each layer of fiber cloth can be evenly covered with resin when folded.

[0063] In detail, because the fiber cloth is folded and stacked sequentially, it is not possible to simply coat only one side of the fiber. Considering the need to ensure the penetration efficiency and uniformity of the resin between each layer, the upper side of each fiber cloth is coated to ensure the uniformity of the resin coating on each fiber cloth. Therefore, an upper coating roller 1131 and a lower coating roller 1134 are provided.

[0064] It should be noted that the upper coating roller 1131 is positioned above the fiber cloth, and the fiber cloth passes between the upper coating roller 1131 and the support roller 1132. Taking the folding of the first, second, and third layers of fiber cloth as an example, the front end of the fiber cloth passes through the upper coating roller 1131. At this time, the upper end of the first layer of fiber cloth is coated with resin. Then, the lifting plate 1133 moves upward, the upper coating roller 1131 detaches from the upper surface of the fiber cloth, and the support roller 1132 lifts the fiber cloth. At this time, the lower coating roller 1134 rises and then moves forward along the slide rail 1135. 4. While moving, the fiber cloth is moved forward, so that the fiber cloth is coated and folded at the same time. When the lower coating roller 1134 moves to the position, the coating is completed. At the same time, the lower coating roller 1134 does not contact the third layer of fiber cloth above. The lower coating roller 1134 returns to the position. When the lower coating roller 1134 has coated half of the fiber cloth, the third layer of fiber cloth is also brought to the folded position by the lower coating roller 1134. At this time, the upper coating tube moves down and approaches the support roller 1132 to coat the upper surface of the third layer of fiber cloth. This process is repeated.

[0065] It is worth mentioning that since both the lower coating roller 1134 and the drag roller are located below the fiber cloth, the conveyor belt here should be set with a certain concave arc to accommodate the placement of the lower coating roller 1134 and the drag roller.

[0066] Furthermore, such as Figure 7 As shown, the folding assembly 12 includes a pressing component 121 disposed behind the adhesive coating component 113 and two sets of fixing components 122 respectively used to fix the front and rear ends of the fiber cloth. Each set of fixing components 122 includes a transition block disposed on both sides of the conveyor belt and raised and lowered by an electric cylinder, a pressure rod 1221 hinged to the transition block by a motor, and multiple fixing pins 1222 disposed on the lower end face of the pressure rod 1221.

[0067] The pressing component 121 includes a pressing plate 1211 disposed at the rear end of the fiber cloth and having a plurality of fixing needles 1222 at the lower end. The two ends of the pressing plate 1211 are connected to the frame by threads, and the slide rail 1135 drives the pressing plate 1211 to move up and down through a gear and rack transmission. It also includes a needle roller 1212 disposed behind the pressing plate 1211.

[0068] In this embodiment, by setting up a pressure rod 1221 and a pressure plate 1211, and cooperating with a fixing pin 1222, the fiber cloth is fixed, so that the lower glue roller 1134 can be positioned accurately when folding and the fiber cloth at the bottom layer will not be dragged.

[0069] In detail, when the fiber cloth is moved to the folding position, the pressure rod 1221 is pressed down to fix the fiber cloth. The pressure rod 1221 is rotatably connected to the adapter block. Each time it is folded, the pressure rod 1221 rises and then rotates to remove the fiber cloth, and then resets to fix it again. When the lower glue roller 1134 moves to the farthest position, the pressure plate 1211 is driven to move upward through the gear and rack transmission to move the fiber cloth below the pressure plate 1211. When the lower glue roller 1134 returns to its original position, the pressure plate 1211 moves downward to press down and fix the newly folded fiber cloth.

[0070] It should be noted that while the pressure bar 1221 serves to fix the fabric, it also uses the pressure bar 1221 and the pressure plate 1211 to compress the folds and bends of the fiber cloth, thus preventing hollow areas from forming at the bends.

[0071] It is worth mentioning that both the pressure bar 1221 and the pressure plate 1211 are equipped with fixing pins 1222. The fixing pins 1222 are used to fix the fiber cloth, so as to prevent the pressure bar 1221 from contacting the resin on the surface of the fiber cloth, which would cause the resin at the fixing position to be missing and affect the molding.

[0072] A needle-punching roller 1212 is set at the rear to pre-punch the folded fiber cloth, so that the fiber cloth passes through the middle of the needle-punching roller. On the one hand, the needle-punching roller 1212 squeezes the fiber cloth to reduce the appearance of wrinkles or edge protrusions. On the other hand, the needle punching makes the internal layers of fiber cloth complete the initial fusion, reducing the possibility of separation of the layers during the movement.

[0073] Furthermore, such as Figure 8 , Figure 9 As shown, the edge-locking assembly 22 is located in front of the needle punching machine 21 and includes a positioning component 221 and an edge-collecting component 222. The positioning component 221 includes a constraint plate 2211 located on both sides of the conveyor belt, a lever located at the end of the constraint plate 2211, four sets of fixing plates 2212 located above the constraint plate 2211, a central frame 2213 vertically slidably connected to the center of the constraint plate 2211 by a telescopic cylinder, an extension rod 2214 fixedly connected to each set of constraint plates 2211 and horizontally slidably connected to the central frame 2213, and a support rod 2215 vertically slidably connected to the middle of the central frame 2213.

[0074] The edge trimming component 222 includes two sets of control frames 2221 disposed on the outside of the constraint plate 2211. Four sets of sliding plates 2222 are slidably connected to the two sets of control frames 2221 via electric cylinders. The upper surface of the sliding plate 2222 is a smooth arc shape and the lower surface is in close contact with the surface of the conveyor belt.

[0075] In this embodiment, by setting a fixing plate 2212 and a sliding plate 2222, the flash of the top layer of the fiber cloth is processed, the measured flash is pressed down to form a locking edge, which facilitates subsequent needle punching.

[0076] In detail, the folded fiber cloth enters the constraint plate 2211 and stops moving after contacting the lever. At this time, the fiber cloth is located below the fixing plate 2212, the center frame 2213 moves down, and the support rod 2215 and the fixing plate 2212 both contact the fiber cloth. The movement continues, and the fiber cloth lifts the support rod 2215. As the support rod 2215 is lifted, the extension rod 2214 slides outward. At this time, the fixing plate 2212 moves outward. The fixing plate 2212 flattens the wrinkles or protrusions on the edge of the fiber cloth and moves down along the edge of the fiber cloth, pressing down the burr on the top layer of the fiber cloth. Then, the sliding plates 2222 around the perimeter move closer to the fiber cloth and use the sliding plates 2222 to squeeze the pressed-down burr into the bottom of the fiber cloth, completing the edge finishing.

[0077] It should be noted that when using burrs to seal the edges of the fiber cloth, considering that the fiber cloth is formed by stacking, even if it is coated with resin, the various bends of the fiber cloth cannot be well bonded together. Moreover, since resin is coated between each layer, the resin is prone to seeping out from the edges, which will cause the edges of the finished product to be rough and uneven, which is not conducive to curing and molding.

[0078] Furthermore, such as Figure 10 , Figure 11 As shown, the supplementary mechanism 3 is located behind the needle punch and includes clamping plates 31 on both sides of the transmission belt for clamping the fiber felt, a support rod 32 located in the middle of the transmission belt and raised and lowered by an electric cylinder, and an inclined roller 33 located above the support rod 32 and rotated along one end by a motor.

[0079] In this embodiment, by setting the support rod 32 and the inclined roller 33, the excess resin is squeezed to the edge position by fixing the inclined roller 33, thereby promoting the resin to flow to the edge locking position.

[0080] In detail, since resin is only applied to the folded surface during the folding stage, and not to the flash edge, even after being needled by the needle punch 21, the sides and interior of the fiber felt cannot be well bonded together. There may be hollow areas or the edges and interior may not fit together, which is not conducive to subsequent curing and molding.

[0081] It should be noted that the middle of the fiber felt is supported by the strut 32, and then the inclined roller 33 is used to roll and squeeze it. Under the cooperation of gravity, the resin flows to the surrounding area until it flows to the edge and combines with the fiber cloth at the edge.

[0082] Furthermore, such as Figure 10 , Figure 11 As shown, the supplementary mechanism 3 also includes a top ring 34 located outside the support rod 32 and raised and lowered by a motor, with a fixed needle 1222 on its upper surface; a turntable 35 that controls the rotation of the top ring 34; and a needle-piercing plate 36 located outside the two sets of clamping plates 31 and moved horizontally by an electric cylinder.

[0083] In this embodiment, the top ring 34 and the needle-punching plate 36 are used to needle the edge of the fiber felt, which works in conjunction with the operation of the inclined roller 33 to make the resin and fiber cloth bond more tightly.

[0084] In detail, after the clamping plate 31 clamps the fiber felt, the needle-punching plate 36 begins to move horizontally to needle the edge side of the fiber felt. With the flow of resin, the resin and the fiber cloth are tightly bonded. When the needle-punching is completed, the top ring 34 rises to fix the fiber felt, and then rotates 90° to turn the edge. The same work is done on the other two sides.

[0085] It should be noted that needle punching makes the flash and interior more tightly bonded, improving the overall integrity of the finished product and preventing delamination and hollow areas.

[0086] It is worth mentioning that this device adopts the method of applying glue first and then needle punching. The needle punching machine 21 uses the repeated puncture of the needle to achieve the mutual entanglement of fibers. Applying glue first allows the resin to penetrate into the middle of the fibers better and make the distribution more uniform.

[0087] Example 2

[0088] like Figure 12 As shown, components that are the same as or corresponding to those in Embodiment 1 are referred to using the same reference numerals as in Embodiment 1. For simplicity, only the differences from Embodiment 1 are described below. The difference between Embodiment 2 and Embodiment 1 is as follows:

[0089] Furthermore, such as Figure 12 As shown, the carbon fiber insulation felt manufacturing process, applied to a carbon fiber insulation felt manufacturing equipment, includes the following steps:

[0090] Step 1, cutting step: Use the punching part 111 to punch regularly arranged holes in the middle of the fiber cloth, and then use the cutting part 112 to cut and trim the edge of the fiber cloth, cut off the excess part on both sides of the fiber cloth, and after cutting, cut it into sections. The section of fiber cloth cut off completes the production of a thermal insulation felt.

[0091] Step 2, folding step: Fold the cut fiber cloth. First, apply resin to the top of the bottom layer of fiber cloth and fix it with the fastener 122. Then, by moving the lower glue roller 1134, the fiber cloth is folded while being glued, and the fiber cloth is folded into a whole.

[0092] Step 3, needle punching step: The folded fiber cloth enters the edge locking assembly 22. The center frame 2213 moves down to fix the center of the fiber cloth. At the same time, the driving fixing plate 2212 presses down the excess burrs around the fiber cloth. Then, the slide plate 2222 squeezes the pressed-down burrs into the bottom of the fiber cloth to tighten and lock the edges. Then, it is fed into the needle punching machine 21 for needle punching.

[0093] Step four, supplementary steps: The needle-punched fiber cloth has become a complete fiber felt. The two sides of the fiber felt are clamped by the clamping plate 31, and then the support rod 32 is raised, making the middle of the fiber felt higher and the edges lower. The rotation of the inclined roller 33 is used to squeeze the resin in the middle to the edges. At the same time, the needle-punching plate 36 on the outside of the clamping plate 31 needles the sides of the fiber felt. After the needle punching of the two sides is completed, the top ring 34 is raised, the clamping plate 31 is loosened, the fiber felt is rotated 90°, and the fiber felt is clamped and needle-punched again to complete the production molding.

[0094] In the description of this invention, it should be understood that the terms "front and back", "left and right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0095] Of course, those skilled in the art should understand that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be understood as a limitation on the quantity.

[0096] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art under the technical guidance of the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A carbon fiber thermal insulation felt manufacturing and molding equipment, characterized in that, Including a high-speed net laying machine (0), and also including: Folding mechanism (1), which is located behind the high-speed web laying machine (0) and is used to process and fold the fiber cloth formed by the high-speed web laying machine (0), including a pretreatment component (11) for cutting and gluing the fiber cloth, and a folding component (12) located behind the pretreatment component (11) for folding the fiber cloth. The needle punching mechanism (2) is located behind the folding assembly (12) and is used to needle punch the folded fiber cloth. It includes a needle punching machine (21) and a locking assembly (22) used in conjunction with the needle punching machine (21). The supplementary mechanism (3) is located behind the needle punching mechanism (2) and is used to uniformly cover the adhesive in the heat insulation felt after needle punching, and to assist the subsequent curing of the heat insulation felt. The folding assembly (12) includes a pressing component (121) located behind the adhesive coating component (113) and two sets of fixing components (122) for fixing the front and rear ends of the fiber cloth respectively. Each set of fixing components (122) includes a transfer block located on both sides of the conveyor belt and raised and lowered by an electric cylinder, a pressure rod (1221) hinged to the transfer block by a motor, and multiple fixing pins (1222) located on the lower end face of the pressure rod (1221). The pressing component (121) includes a pressing plate (1211) disposed at the rear end of the fiber cloth and with a plurality of fixing needles (1222) at the lower end. The two ends of the pressing plate (1211) are connected to the frame by threads and the slide rail (1135) drives the pressing plate (1211) to move up and down through a gear and rack transmission method. It also includes a needle roller (1212) disposed behind the pressing plate (1211). The edge-locking assembly (22) is located in front of the needle punching machine (21) and includes a positioning component (221) and an edge-collecting component (222). The positioning component (221) includes a constraint plate (2211) on both sides of the conveyor belt. A lever is provided at the end of the constraint plate (2211). Four sets of fixing plates (2212) are located above the constraint plate (2211). A central frame (2213) is vertically and slidably connected to the center of the constraint plate (2211) by a telescopic cylinder. An extension rod (2214) is fixedly connected to each set of constraint plates (2211) and horizontally and slidably connected to the central frame (2213). A support rod (2215) is vertically and slidably connected to the middle of the central frame (2213). The edge trimming component (222) includes two sets of control frames (2221) set outside the constraint plate (2211). Four sets of sliding plates (2222) are slidably connected to the two sets of control frames (2221) via electric cylinders. The upper surface of the sliding plate (2222) is a smooth arc and the lower surface is in close contact with the surface of the conveyor belt.

2. The carbon fiber thermal insulation felt manufacturing equipment according to claim 1, characterized in that, The pretreatment component (11) includes a punching component (111) for regularly punching holes in the fiber cloth, a cutting component (112) for cutting the fiber cloth, and a gluing component (113) for applying glue in conjunction with the folding component (12). The punching component (111) includes a punching knife (1111) located behind the high-speed web laying machine (0) and moving up and down under the control of an electric cylinder, and an opening cam (1112) located below the punching knife (1111) and rotating under the control of a motor.

3. The carbon fiber thermal insulation felt manufacturing equipment according to claim 2, characterized in that, The cutting component (112) includes two sets of cutting blades (1121) arranged symmetrically on both sides of the conveyor belt behind the punching component (111) and a cutting blade (1122) arranged behind the cutting blades (1121), and a hinge plate (1123) for fixing the cutting blades (1121) and the cutting blade (1122) and hinged to the frame by a motor. It also includes a cutter (1124) set behind the cutter (1122) to cut the fiber cloth as a whole.

4. The carbon fiber thermal insulation felt manufacturing equipment according to claim 3, characterized in that, The coating component (113) includes an upper coating roller (1131) located behind the cutting component (112) and moved by an electric cylinder, a support roller (1132) located diagonally below the rear side of the upper coating roller (1131), and a lifting plate (1133) for fixing the upper coating roller (1131) and the support roller (1132). A lower glue-applying roller (1134) is set at the lower rear side of the idler roller (1132) and its up-and-down movement is controlled by a telescopic cylinder, and a slide rail (1135) is used to drive the lower glue-applying roller (1134) to slide horizontally.

5. The carbon fiber thermal insulation felt manufacturing equipment according to claim 4, characterized in that, The supplementary mechanism (3) is located behind the needle punch and includes clamping plates (31) on both sides of the transmission belt for clamping the fiber felt, a support rod (32) in the middle of the transmission belt and controlled to rise and fall by an electric cylinder, and an inclined roller (33) above the support rod (32) and controlled to rotate along one end by a motor.

6. The carbon fiber thermal insulation felt manufacturing equipment according to claim 5, characterized in that, The supplementary mechanism (3) also includes a top ring (34) located on the outside of the support rod (32) and raised and lowered by a motor, with a fixed needle (1222) on its upper surface; a turntable (35) for controlling the rotation of the top ring (34); and a needle plate (36) located on the outside of the two sets of clamping plates (31) and moved horizontally by an electric cylinder.

7. A carbon fiber thermal insulation felt manufacturing process, applied to the carbon fiber thermal insulation felt manufacturing equipment described in claim 6, characterized in that, Includes the following steps: Step 1, cutting step: use the punching part (111) to punch holes in the middle of the fiber cloth in a regular pattern, and then use the cutting part (112) to cut and trim the edge of the fiber cloth, cut off the excess part on both sides of the fiber cloth, and then cut it into sections. The section of fiber cloth cut off completes the production of a heat insulation felt. Step 2, Folding Step: Fold the cut fiber cloth. First, apply resin to the top of the bottom layer of fiber cloth, then fix it with the fastener (122). Then, by moving the lower glue roller (1134), the fiber cloth is glued and folded at the same time, and the fiber cloth is folded into a whole. Step 3, needle punching step: The folded fiber cloth enters the edge locking assembly (22). The center frame (2213) moves down to fix the center of the fiber cloth. At the same time, the driving fixing plate (2212) presses down the excess burrs around the fiber cloth. Then, the sliding plate (2222) squeezes the pressed-down burrs into the bottom of the fiber cloth to tighten and lock the edges. Then, it is fed into the needle punching machine (21) for needle punching. Step four, supplementary steps: the needle-punched fiber cloth has become a complete fiber felt. The two sides of the fiber felt are clamped by the clamp (31), and then the support rod (32) is raised, making the middle of the fiber felt higher and the surrounding area lower. The rotation of the inclined roller (33) is used to squeeze the resin in the middle to the surrounding area. At the same time, the needle-punching plate (36) on the outside of the clamp (31) needles the side edges of the fiber felt. After the needle punching of the two sides is completed, the top ring (34) is raised, the clamp (31) is loosened, the fiber felt is rotated 90°, and the fiber felt is clamped and needle-punched again to complete the production molding.

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