One-step alkali-resistant net continuous felt production line

Abstract

The invention relates to a one-step alkali-resistant net continuous felt production line. The production line comprises a feeding unit, a wire throwing unit, a sizing unit, a cutting unit and a winding unit, a drying unit is further arranged between the sizing unit and the cutting unit, the drying unit comprises at least two drying cylinders which are distributed up and down, the sized wet felt sequentially bypasses the drying cylinders and then is fed into the cutting unit, and the radian of an arc formed by the contact surface of the wet felt and the single drying cylinder is larger than pirad. According to the production line, the drying unit is additionally arranged between the sizing unit and the cutting unit, and the surface of the passing strand mat is ironed through cooperation of a plurality of drying cylinders, so that flying filaments on the surface of the strand mat are bonded together through curing of an adhesive in the drying process, and surface flatness is achieved.

Description

Technical Field

[0001] The invention relates to the field of continuous felt production, in particular to a one-step alkali-resistant mesh continuous felt production line. Background Art

[0002] In the application of external wall insulation system, glass fiber mesh cloth is currently used as a reinforcing material all over the world. Its main function is to improve the mechanical strength of the surface layer, ensure the resistance continuity of the finishing layer, disperse the shrinkage pressure and insulation stress of the surface layer, avoid stress concentration, and resist the cracking of the surface layer caused by natural temperature and humidity changes and accidental impact. Traditional alkali-resistant glass fiber mesh cloth is a woven fabric, which is woven by a number of warp and weft threads. The production of traditional glass fiber mesh cloth requires multiple processes such as drawing, de-wired, warping, twisting, warping, weaving, and gluing. There are many processes, high energy consumption, low material utilization, and a high proportion of labor, so the production cost is high.

[0003] In response to the above phenomenon, patent CN219547234U proposes an alkali-resistant continuous felt mesh structure, including a continuous felt mesh body formed by a non-directional winding of a glass fiber bundle and an alkali-resistant coating formed by an alkali-resistant adhesive. The alkali-resistant coating is immersed in the continuous felt mesh body and bonded to the glass fiber connection points of the continuous felt mesh body. The continuous felt mesh body has a plurality of stitching lines.

[0004] The continuous felt mesh body of the above-mentioned patent can effectively solve the problems of numerous processes, high energy consumption, low material utilization rate, and high labor ratio in the production of traditional glass fiber mesh cloth. However, in the actual production process, it is found that the surface of the alkali-resistant mesh continuous felt produced by the existing device will inevitably have a certain amount of thread ends extending from the surface of the continuous felt. When this kind of continuous felt is used in some scenes that require a smooth surface of the continuous felt, it is necessary to first process the surface of the continuous felt and remove the thread ends before it can be put into use, which is very troublesome. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a one-step alkali-resistant mesh continuous felt production line capable of producing a continuous felt with a smooth surface.

[0006] In order to solve the above technical problems, the technical solution of the present invention is: a one-step alkali-resistant mesh continuous felt production line, the innovation of which is: comprising a feeding unit, a wire throwing unit, a sizing unit, a cutting unit and a winding unit; A drying unit is also provided between the gluing unit and the cutting unit. The drying unit comprises at least two drying cylinders distributed up and down. The wet felt after gluing is passed over each drying cylinder in turn and then sent to the cutting unit. The arc formed by the contact surface between the wet felt and a single drying cylinder has an arc angle of >πrad.

[0007] Furthermore, the feeding unit includes at least one feeding assembly, and the feeding assembly includes a ball feeding machine and a crucible furnace distributed up and down, and a liquid outlet is provided at the bottom end of the crucible furnace; The wire throwing unit comprises a wire throwing mesh belt arranged below the crucible furnace, a wire throwing machine is arranged above the wire throwing mesh belt, and a liquid inlet corresponding to the liquid outlet of the crucible furnace is arranged at the top of the wire throwing machine; The glue application unit comprises a glue application mesh belt, a glue application box, a collecting hood, a suction pipe, a cyclone separator and a glue mixing box. The glue application mesh belt is arranged at the discharge port of the wire throwing machine. A glue application box is also arranged above the glue application mesh belt. The glue application box stores adhesive. An overflow inclined plate is arranged on one side of the glue application box. The adhesive flows evenly onto the raw silk felt through the overflow plate. A collecting hood and a suction pipe are also arranged below the glue application mesh belt at a position corresponding to the glue application box. After overflow, the excess adhesive falls into the collecting hood for collection and is pumped into the glue application box for circulation. The collecting hood is also connected to a cyclone separator. The negative pressure generated by the cyclone separator sucks the excess adhesive in the felt body. The drying unit comprises a drying support, on which at least two drying cylinders are installed in an upper and lower arrangement, and the wet felt after glue application passes through each drying cylinder in turn and is sent to the cutting unit, and the arc formed by the contact surface of the wet felt and a single drying cylinder has an arc angle of >πrad, a sag distance meter is also provided between the uppermost drying cylinder and the mesh belt, and an exhaust gas collecting hood is also provided above the drying cylinder; The cutting unit comprises a cutting support and a longitudinal cutting machine and a cross-cutting machine which are sequentially mounted on the cutting support; The winding unit comprises a winding support arranged at the discharge port of the cutting support, and a winding roller is installed on the winding support.

[0008] Furthermore, there are three drying cylinders in total, which are defined as the first drying cylinder, the second drying cylinder and the third drying cylinder from top to bottom, wherein the diameter of the first drying cylinder is larger than that of the second drying cylinder, the diameter of the second drying cylinder is the same as the diameter of the third drying cylinder, the radian of the arc formed by the contact surface of the wet felt and the first drying cylinder is 7π / 5rad, the radian of the arc formed by the contact surface of the wet felt and the second drying cylinder is 4rad, and the radian of the arc formed by the contact surface of the wet felt and the third drying cylinder is 4rad.

[0009] Furthermore, the production process of the one-step alkali-resistant mesh continuous felt production line includes the following steps: S1: First, glass ball raw materials are added into a ball adding machine, and the glass balls in the ball adding machine fall into a crucible furnace, and the crucible furnace is heated to melt the glass balls into glass liquid; S2: The glass liquid flows out from the outlet of the crucible furnace under the action of its own weight to form continuous fiber precursors, and the continuous fiber precursors enter the wire throwing machine, and the wire throwing machine is used to throw the continuous fiber precursors, so that the continuous fiber precursors form a precursor felt on the wire throwing mesh belt; S3: The raw silk felt is transferred from the silk throwing mesh belt to the sizing mesh belt, and becomes wet felt after being sizing in the sizing box; S4: The wet felt after sizing passes through each drying cylinder in turn, and the upper and lower surfaces of the wet felt are ironed by the drying cylinders distributed up and down, so that the surface of the original silk felt becomes smooth. When the wet felt passes through each drying cylinder, the surface temperature of the drying cylinder needs to reach 110°C-150°C to obtain an alkali-resistant continuous felt; S5: The formed alkali-resistant continuous mesh felt is then sent to the cutting unit, and is cut horizontally and vertically by a longitudinal cutting machine and a transverse cutting machine to obtain an alkali-resistant continuous mesh felt of a required length and width. The cut alkali-resistant continuous mesh felt is collected and stored by a winding roller.

[0010] The advantage of the present invention is that in the production line of the present invention, a drying unit is added between the gluing unit and the cutting unit, and the surface of the raw silk felt passing through is ironed by utilizing the cooperation of several drying cylinders, so that the surface of the raw silk felt becomes smoother, which is suitable for some scenarios where a continuous felt with a smooth surface is required.

[0011] By reasonably designing the arc formed by the contact surface between the wet felt and a single drying cylinder, the wet felt can contact with the single drying cylinder to a greater extent, thereby increasing the contact time and improving the drying effect.

[0012] By setting up three drying cylinders to iron the wet felt, and coordinating the contact areas between the raw silk felt and different drying cylinders, better drying and ironing of the two surfaces of the wet felt can be achieved by using fewer drying cylinders.

[0013] When the wet felt after gluing passes through the drying drum, the glue on the wet felt is heated and solidified, so that the glue after flattening can be quickly solidified, avoiding the thread ends continuing to extend from the surface of the original silk felt due to the glue not being solidified in time, thereby affecting the quality of the final continuous felt.

[0014] The production process of the present invention is based on an improved production line. After the raw silk felt is glued, the upper and lower surfaces of the wet felt are treated by drying. During the drying process, heating and curing are used to accelerate the curing of the glue and fix the fibers on the surface, thereby producing a continuous alkali-resistant mesh felt with a smooth surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the one-step alkali-resistant mesh continuous felt production line of the present invention.

[0016] Figure 2 It is a top view of the one-step alkali-resistant mesh continuous felt production line of the present invention. DETAILED DESCRIPTION

[0017] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0018] like Figure 1 , Figure 2 A one-step alkali-resistant mesh continuous felt production line is shown, which includes a feeding unit, a wire throwing unit, a gluing unit, a cutting unit and a winding unit. A drying unit is also arranged between the gluing unit and the cutting unit. The feeding unit, the wire throwing unit, the gluing unit, the drying unit, the cutting unit and the winding unit are all installed in a factory building 1.

[0019] The feeding unit includes four parallelly distributed feeding components, which include a ball feeding machine 2 and a crucible furnace 3 distributed up and down. The bottom end of the ball feeding machine 2 has a discharge port connected to the crucible furnace 3, and the bottom end of the crucible furnace 3 has a liquid outlet.

[0020] The wire throwing unit includes a wire throwing mesh belt 4 arranged below the crucible furnace 3. The wire throwing mesh belt 4 is installed on a wire throwing bracket and is driven to rotate by a wire throwing motor installed on the wire throwing bracket. Four wire throwing machines 5 are arranged above the wire throwing mesh belt 4, and each wire throwing machine 5 corresponds to each crucible furnace 4 one by one. A liquid inlet corresponding to the liquid outlet of the crucible furnace 3 is provided at the top end of the wire throwing machine 5, and a wire outlet is provided at the bottom end of the wire throwing machine 5.

[0021] A wire throwing mesh belt washing pool 41 and a Teflon belt washing pool 42 are also provided beside the wire throwing mesh belt 4.

[0022] The glue application unit includes a glue application mesh belt 64, a glue application box 65, a collecting hood 6, a suction pipe 61, a cyclone separator 62 and a glue mixing box 63. The glue application mesh belt 64 is arranged at the discharge port of the wire throwing machine 5. A glue application box 65 is also arranged above the glue application mesh belt 64. A glue application roller is installed in the glue application box 65. Both sides of the glue application roller are installed in the glue application box 65 through the cooperation of bearings and bearing seats. Adhesive is stored in the glue application box 65. An overflow inclined plate is arranged on one side of the glue application box 65. The adhesive flows evenly onto the raw silk felt through the overflow plate. A collecting hood 6 and a suction pipe 61 are also provided at the corresponding position of the glue box 65. After overflow, excess adhesive falls into the collecting hood 6, is collected, and is pumped into the glue box 65 through a pump and circulated in this way. A suction pipe 61 connected to the glue liquid in the collecting hood 6 is also provided in the collecting hood 6. The suction pipe 61 is also connected to the cyclone separator 62. The negative pressure generated by the cyclone separator 62 sucks excess adhesive in the felt body. By adjusting the vacuum degree and the opening of the collecting hood, the gaps between the fibers are clear and free of sticky holes, and a certain amount of adhesive is retained on the fiber surface and the intersection to protect the fibers and connect and fix them.

[0023] The drying unit includes a drying bracket 7 arranged at the discharge port of the glue box 6, and at least two drying cylinders are installed on the drying bracket 7, and the two sides of the drying cylinder are installed on the drying bracket 7 through the cooperation of the bearing and the bearing seat, and one of the drying cylinders is driven by the drying cylinder motor 77 to rotate. The wet felt after glue application is sent to the cutting unit after passing through each drying cylinder in turn, and the arc formed by the contact surface of the wet felt and the single drying cylinder has an arc angle of >πrad. By reasonably designing the arc angle formed by the contact surface of the wet felt and the single drying cylinder, the wet felt can contact the single drying cylinder to a greater extent, increase the contact time, and improve the drying and ironing effect.

[0024] Specifically, there are three drying cylinders, which are defined as the first drying cylinder 71, the second drying cylinder 72 and the third drying cylinder 73 from top to bottom. The first drying cylinder 71 is driven by the drying motor 77 to rotate. The first drying cylinder 71, the second drying cylinder 72 and the third drying cylinder 73 also realize synchronous rotation through the cooperation of the sprocket and the chain. Among them, the diameter of the first drying cylinder 71 is larger than that of the second drying cylinder 72, and the diameter of the second drying cylinder 72 is the same as that of the third drying cylinder 73. The arc formed by the contact surface of the wet felt and the first drying cylinder 71 has an arc of 7π / 5rad, the arc formed by the contact surface of the wet felt and the second drying cylinder 72 has an arc of 4rad, and the arc formed by the contact surface of the wet felt and the third drying cylinder 73 has an arc of 4rad. By setting three drying cylinders to iron the wet felt, and matching the contact area between the wet felt and different drying cylinders, it is only necessary to use fewer drying cylinders to achieve better drying of the two surfaces of the wet felt.

[0025] A sag distance meter is also provided between the first drying drum 71 and the glue mesh belt 64, and the sag distance meter is used to detect the up and down amplitude of the wet felt passing through, so as to adjust the rotation speed of the first drying drum 71 and the conveying speed of the glue mesh belt 64 through the cooperation of the controller.

[0026] An exhaust gas collecting hood 74 is also provided above the first drying cylinder 71, and the top end of the exhaust gas collecting hood 74 is connected to the exhaust main pipeline.

[0027] Two parallel natural gas mold temperature controllers 76 are also arranged beside the drying cylinder. The natural gas mold temperature controllers 76 are used to provide hot heat transfer oil to each drying cylinder so that the wet felt can be dried and shaped on the hot drying cylinder surface. The hot drying cylinder is used to dry and shape the wet felt passing through, and the glue on the wet felt is heated and solidified, so that the dried glue can be quickly solidified, avoiding the thread ends continuing to extend from the surface of the wet felt due to the glue not being solidified in time, thereby affecting the quality of the final continuous felt.

[0028] The cutting unit includes a cutting support 8 and a longitudinal cutter 82 and a transverse cutter 81 which are sequentially mounted on the cutting support 8 .

[0029] The winding unit includes a winding support 9 arranged at the discharge port of the cutting support 8, on which a winding roller 91 is mounted, and the winding roller 91 is driven to rotate by a winding motor.

[0030] The production process of one-step alkali-resistant mesh continuous felt production line includes the following steps: S1: First, add the glass ball raw material into the ball adding machine 2, the glass balls in the ball adding machine 2 fall into the crucible furnace 3, and the crucible furnace 3 is heated to melt the glass balls into glass liquid. S2: The glass liquid flows out of the liquid outlet of the crucible furnace 3 under the action of its own weight to form continuous fiber precursors, which enter the wire throwing machine 5 and are thrown by the wire throwing machine 5 to form a precursor felt on the wire throwing mesh belt 4. S3: The raw silk felt is transferred from the casting mesh belt 4 to the glue belt 64, and is glued through the glue box 65 to form a wet felt.

[0031] S4: The wet felt after glue application passes through the first drying drum 71, the second drying drum 72 and the third drying drum 73 in turn. The upper and lower surfaces of the insulation space passed through are dried and ironed by the first drying drum 71, the second drying drum 72 and the third drying drum 73 distributed up and down. The first drying drum 71 and the third drying drum 73 are used to iron the lower surface of the raw silk felt, and the second drying drum 72 is used to iron the upper surface of the raw silk felt, so that the surface of the raw silk felt becomes smooth. When the raw silk felt passes through the first drying drum 71, the second drying drum 72 and the third drying drum 73, the temperature of the drying drum surface needs to reach 110°C-150°C, and it becomes alkali-resistant after drying and ironing.

[0032] S5: The formed alkali-resistant continuous mesh felt is then sent to the cutting unit, and is cut horizontally and vertically by the longitudinal cutting machine 82 and the transverse cutting machine 81 to obtain the alkali-resistant continuous mesh felt of required length and width. The cut alkali-resistant continuous mesh felt is collected by the winding roller 91 and stored.

[0033] The production process of the present invention is based on an improved production line. After the raw silk felt is glued, the upper and lower surfaces of the raw silk felt are treated by drying. During the drying process, heating and curing are used to accelerate the curing of the glue, thereby producing a continuous alkali-resistant mesh felt with a smooth surface.

[0034] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A one-step alkali-resistant mesh continuous felt production line, characterized by: It includes feeding unit, wire throwing unit, gluing unit, cutting unit and winding unit; A drying unit is also provided between the gluing unit and the cutting unit. The drying unit comprises at least two drying cylinders distributed up and down. The wet felt after gluing is passed over each drying cylinder in turn and then sent to the cutting unit. The arc formed by the contact surface between the wet felt and a single drying cylinder has an arc angle of >πrad.

2. The one-step alkali-resistant mesh continuous felt production line according to claim 1 is characterized in that: The feeding unit includes at least one feeding assembly, and the feeding assembly includes a ball feeding machine and a crucible furnace distributed up and down, and a liquid outlet is provided at the bottom end of the crucible furnace; The wire throwing unit comprises a wire throwing mesh belt arranged below the crucible furnace, a wire throwing machine is arranged above the wire throwing mesh belt, and a liquid inlet corresponding to the liquid outlet of the crucible furnace is arranged at the top of the wire throwing machine; The glue application unit comprises a glue application mesh belt, a glue application box, a collecting hood, a suction pipe, a cyclone separator and a glue mixing box. The glue application mesh belt is arranged at the discharge port of the wire throwing machine. A glue application box is also arranged above the glue application mesh belt. The glue application box stores adhesive. An overflow inclined plate is arranged on one side of the glue application box. The adhesive flows evenly onto the raw silk felt through the overflow plate. A collecting hood and a suction pipe are also arranged below the glue application mesh belt at a position corresponding to the glue application box. After overflow, the excess adhesive falls into the collecting hood for collection and is pumped into the glue application box for circulation. The collecting hood is also connected to a cyclone separator. The negative pressure generated by the cyclone separator sucks the excess adhesive in the felt body. The drying unit comprises a drying support, on which at least two drying cylinders are installed in an upper and lower arrangement, and the wet felt after glue application passes through each drying cylinder in turn and is sent to the cutting unit, and the arc formed by the contact surface of the wet felt and a single drying cylinder has an arc angle of >πrad, a sag distance meter is also provided between the uppermost drying cylinder and the mesh belt, and an exhaust gas collecting hood is also provided above the drying cylinder; The cutting unit comprises a cutting support and a longitudinal cutting machine and a cross-cutting machine which are sequentially mounted on the cutting support; The winding unit comprises a winding support arranged at the discharge port of the cutting support, and a winding roller is installed on the winding support.

3. The one-step alkali-resistant mesh continuous felt production line according to claim 1 or 2, characterized in that: There are three drying cylinders in total, which are defined as the first drying cylinder, the second drying cylinder and the third drying cylinder from top to bottom, wherein the diameter of the first drying cylinder is larger than that of the second drying cylinder, the diameter of the second drying cylinder is the same as the diameter of the third drying cylinder, the arc formed by the contact surface of the wet felt and the first drying cylinder has a radian of 7π / 5rad, the arc formed by the contact surface of the wet felt and the second drying cylinder has a radian of 4rad, and the arc formed by the contact surface of the wet felt and the third drying cylinder has a radian of 4rad.

4. The one-step alkali-resistant mesh continuous felt production line according to claim 1 is characterized in that: The production process of one-step alkali-resistant mesh continuous felt production line includes the following steps: S1: First, glass ball raw materials are added into a ball adding machine, and the glass balls in the ball adding machine fall into a crucible furnace, and the crucible furnace is heated to melt the glass balls into glass liquid; S2: The glass liquid flows out from the outlet of the crucible furnace under the action of its own weight to form continuous fiber precursors, and the continuous fiber precursors enter the wire throwing machine, and the wire throwing machine is used to throw the continuous fiber precursors, so that the continuous fiber precursors form a precursor felt on the wire throwing mesh belt; S3: The raw silk felt is transferred from the silk throwing mesh belt to the sizing mesh belt, and becomes wet felt after being sizing in the sizing box; S4: The wet felt after sizing passes through each drying cylinder in turn, and the upper and lower surfaces of the wet felt are ironed by the drying cylinders distributed up and down, so that the surface of the original silk felt becomes smooth. When the wet felt passes through each drying cylinder, the surface temperature of the drying cylinder needs to reach 110°C-150°C to obtain an alkali-resistant continuous felt; S5: The formed alkali-resistant continuous mesh felt is then sent to the cutting unit, and is cut horizontally and vertically by a longitudinal cutting machine and a transverse cutting machine to obtain an alkali-resistant continuous mesh felt of a required length and width. The cut alkali-resistant continuous mesh felt is collected and stored by a winding roller.

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