CN113997543B - Production process of ultra-micro glass fiber cotton reinforced HDPE double-wall corrugated pipe - Google Patents

Abstract

The invention discloses a production process for ultra-micro glass fiber cotton reinforced HDPE double-wall corrugated pipes, which includes the following steps: Step 1: Weigh HDPE resin, modified glass fiber cotton and processing aids according to the following weight parts, and then add the above materials Send it into the mixer to mix evenly, and then pass it into the screw extruder. Add modified glass fiber wool during preparation, and put the glass fiber wool into vinyl triethoxysilane and 20%-35% ethanol. Soaking in the solution can effectively activate the glass fiber wool. The HDPE double-wall corrugated pipe produced by this method has the advantages of small dimensional shrinkage, high hardness and good toughness, and functional processing aids are added. The agent can make the prepared HDPE double-wall corrugated pipe have better durability.

Description

Production process of ultra-micro glass fiber wool reinforced HDPE double-wall corrugated pipe

Technical field

The invention relates to the technical field of double-wall corrugated pipe production, and specifically to the production technology of ultra-fine glass fiber cotton reinforced HDPE double-wall corrugated pipes.

Background technique

HDPE is one of the top five commonly used plastics in the world. Due to its good toughness and processability, it is widely used and is also widely used in municipal water supply and drainage pipelines. Conventional HDPE double-wall corrugated pipes generally use talcum powder and calcium carbonate as reinforcing materials. .

However, the existing HDPE double-wall corrugated pipes have poor molding effects during manufacturing, and the prepared HDPE double-wall corrugated pipes are often poor in hardness, toughness and impact resistance, and the pipes need to be cooled during manufacturing. , and at present, not only the cooling speed is slow during cooling, but also the coolant will adhere to the surface of the pipe, which not only leads to the waste of coolant, but also causes a large amount of dust to adhere.

Contents of the invention

The object of the present invention is to provide a production process for ultra-fine glass fiber wool reinforced HDPE double-wall corrugated pipes by adding modified glass fiber wool during preparation, and adding the glass fiber cotton into vinyl triethoxysilane and 20%- Soaking in 35% ethanol solution can effectively activate the glass fiber wool. The HDPE double-wall corrugated pipe made by this method has the advantages of small dimensional shrinkage, high hardness and good toughness, and is added with functional Special processing aids can make the prepared HDPE double-wall corrugated pipes have better durability.

The object of the present invention can be achieved through the following technical solutions:

The production process of ultra-fine glass fiber wool reinforced HDPE double-wall corrugated pipes includes the following steps:

Step 1: Weigh 50-55 parts of HDPE resin, 20-30 parts of modified glass fiber cotton and 3-5 parts of processing aids according to the following weight parts, then put the above materials into the mixer to mix evenly, and then pass through Inside the screw extruder;

Step 2: Use the screw extruder to extrude the outer wall and the inner wall in a coating and co-extrusion manner, and then feed the outer wall and the inner wall into the molding machine through traction, bond the outer wall and the inner wall through pressure, and use negative pressure The adsorption method forms ripples on the surface of the outer wall;

Step 3: Send the formed pipe into the cooling water tank for cooling to obtain the finished pipe, then dry the surface of the pipe through a drying box, and then use a traction cutting machine to photoelectrically position and cut the pipe to obtain pipe fittings;

The cooling water tank is composed of a cleaning tank and a water storage tank located at the bottom of the cleaning tank. The bottom of the cleaning tank is provided with a water outlet, the top of the water storage tank is provided with a water inlet, and the bottom of the inner cavity of the water storage tank is fixed. A water pump is connected to the water pump. The water outlet end of the water pump is connected to a water outlet pipe. One end of the water outlet pipe passes through the water storage tank and the cleaning tank in sequence and extends to the inside of the cleaning tank. The outer surface of the cleaning tank is fixedly connected with a support. The bottom of the support plate is fixedly connected to the bottom of the inner cavity of the cleaning box. The outer surface of the water outlet pipe is fixedly connected to an annular tube. The outer surface of the annular tube is fixedly connected to three fixed sleeves. The fixed sleeves are One side is fixedly connected to the inner surface of the cleaning box. The outer surface of the annular tube is penetrated by four nozzles. Both sides of the cleaning box are provided with push pipe openings. The inner surface of the cleaning box is connected with a drive assembly. Wiping assembly, both sides of the top of the inner cavity of the water storage tank are fixedly connected with limit plates, a filter plate is provided between the opposite sides of the two limit plates, and one side of the water storage tank is connected with a Water pipe, the outer surface of the water pipe is fixedly connected with a control valve.

The wiping assembly includes a support ring. An electric telescopic rod is fixedly connected above and below the inner surface of the support ring through a connecting sleeve. A push plate is fixedly connected between the opposite ends of the two electric telescopic rods. There is a rotating ring inside the plate. Both sides of the surface of the rotating ring are connected with rotating pages. One side of the two rotating pages is fixedly connected with a connecting plate. One side of the connecting plate is fixedly connected with a wiping plate. Cotton, one side of the scouring cotton is provided with several adapting grooves, and the sides of the two push plates that are relatively far away are fixedly connected with fixed sleeves, and the inner surface of the fixed sleeve is slidably connected with a connecting rod. One end of the connecting rod penetrates the push plate and extends to the outside of the push plate. The outer surface of the rotating leaf is fixedly connected with a rotating block. The inner surface of the rotating block is rotationally connected to one end of the connecting rod. The other end of the connecting rod A sliding plate is fixedly connected, one side of the sliding plate is fixedly connected with a spring, and one end of the spring is fixedly connected to one side of the inner cavity of the fixed sleeve.

The drive assembly includes a drive motor located on the top of the cleaning box. The output end of the drive motor is fixedly connected to a drive gear. The outer surface of the push plate is fixedly connected to a ring gear. The outer surface of the ring gear is in contact with the drive gear. The outer surfaces of the push plate are meshed with each other. The outer surface of the push plate and both sides of the ring gear are fixedly connected with limit rings. The inner surface of the limit ring is rollingly connected with steel balls. The inner surface of the cleaning box is at the corresponding position of the steel balls. A rolling groove is provided, and the outer surface of the steel ball is rollingly connected to the outer surface of the rolling groove.

As a further solution of the present invention: the preparation method of the modified glass fiber wool is: placing the glass fiber wool in a container, and injecting vinyl triethoxysilane and ethanol with a concentration of 20%-35% into the container Soak in the solution for 1-3 minutes while stirring, then take out the glass fiber wool and dry it in a dryer to obtain modified glass fiber wool.

As a further solution of the present invention: the diameter of the glass fiber wool is 10-13 microns.

As a further solution of the present invention: in the step one, the stirring speed of the mixer is 120-180r/min, and the stirring time is 3-5min.

As a further solution of the present invention: in step two, the extrusion temperature of the screw extruder is 200-220°C, and the die temperature of the screw extruder is set to 220-235°C.

As a further solution of the present invention: in step three, the internal temperature of the drying box is set to 70-90°C, and the drying time in the drying box is 30-50s.

Beneficial effects of the present invention:

(1) In the present invention, by adding modified glass fiber wool during preparation, and soaking the glass fiber wool in vinyl triethoxysilane and 20%-35% ethanol solution, the glass can be effectively Fiber cotton is activated. The HDPE double-wall corrugated pipe produced by this method has the advantages of small dimensional shrinkage, high hardness and good toughness, and adding functional processing aids can make the prepared HDPE double-wall corrugated pipe Tubes have better durability.

(2) In the present invention, multiple annular tubes are arranged inside the cooling water tank, and four equidistant nozzles are arranged on the surface of the annular tubes, so that the double-wall corrugated pipe can be fully cooled and cleaned during cleaning. A wiping component is installed in the box, which can wipe off the coolant adhered to the surface of the double-walled corrugated pipe, and through the contraction of the electric telescopic rod, the two rotating pages rotate, thereby squeezing out the coolant in the wiping cotton, and the coolant It will be left in the water storage tank through the water outlet and water inlet again to achieve the purpose of recycling. This structure can not only quickly cool down the pipeline, but also realize the recycling of coolant, which is easy to promote.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings.

Figure 1 is a schematic diagram of the process flow of the present invention;

Figure 2 is a schematic diagram of the internal structure of the cooling water tank of the present invention;

Figure 3 is a partial structural side cross-sectional view of the cleaning box of the present invention;

Figure 4 is a side view of the external structure of the wiping assembly of the present invention;

Figure 5 is a partial structural cross-sectional view of the rotating page of the present invention;

Figure 6 is an enlarged view of the partial structure of position A in Figure 2 of the present invention;

Figure 7 is an enlarged view of the partial structure at B in Figure 2 of the present invention.

In the picture: 1. Cleaning tank; 2. Water storage tank; 3. Water pump; 4. Water outlet pipe; 5. Water outlet; 6. Water inlet; 7. Ring pipe; 8. Fixed sleeve; 9. Nozzle; 10. Support plate; 11. Push tube opening; 12. Driving assembly; 121. Driving motor; 122. Driving gear; 123. Ring gear; 124. Limit ring; 125. Rolling groove; 126. Steel balls; 13. Wiping assembly; 131 , Support ring; 132. Adapting groove; 133. Electric telescopic rod; 134. Push plate; 135. Connecting sleeve; 136. Rotating ring; 137. Rotating page; 138. Scrubbing cotton; 139. Connecting plate; 1310. Sliding plate ; 1311. Spring; 1312. Connecting rod; 1313. Rotating block; 14. Filter plate; 15. Water pipe; 16. Control valve; 17. Limit plate.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

Please refer to Figures 1-7. The present invention is a production process for ultra-fine glass fiber cotton reinforced HDPE double-wall corrugated pipes, which includes the following steps:

Step 1: Weigh 55 parts of HDPE resin, 30 parts of modified glass fiber cotton, and 3 parts of processing aids according to the following parts by weight. The processing aids include non-toxic lubricants, antioxidants, light stabilizers, coupling agents, Activator, etc., are used to improve the performance of the pipeline, and then the above materials are fed into the mixer to mix evenly, and then passed into the screw extruder;

Step 2: Use the screw extruder to extrude the outer wall and the inner wall in a coating and co-extrusion manner, and then feed the outer wall and the inner wall into the molding machine through traction, bond the outer wall and the inner wall through pressure, and use negative pressure The adsorption method forms ripples on the surface of the outer wall;

Step 3: Send the formed pipe into the interior of the cooling water tank for cooling to obtain the finished pipe, then dry the surface of the pipe through a drying box, and then use a traction cutting machine to photoelectrically position and cut the pipe to obtain pipe fittings.

The cooling water tank consists of a cleaning tank 1 and a water storage tank 2 located at the bottom of the cleaning tank 1. The bottom of the cleaning tank 1 is provided with a water outlet 5, and the top of the water storage tank 2 is provided with a water inlet 6. The inner cavity of the water storage tank 2 is A water pump 3 is fixedly connected to the bottom, and the outlet end of the water pump 3 is connected to an outlet pipe 4. One end of the outlet pipe 4 passes through the water storage tank 2 and the cleaning tank 1 in sequence and extends to the inside of the cleaning tank 1. The outer surface of the cleaning tank 1 There is a support plate 10 fixedly connected. The bottom of the support plate 10 is fixedly connected with the bottom of the inner cavity of the cleaning box 1. The outer surface of the outlet pipe 4 is fixedly connected with an annular pipe 7. The outer surface of the annular pipe 7 is fixedly connected with three fixing sleeves 8. One side of the fixed sleeve 8 is fixedly connected to the inner surface of the cleaning box 1. The outer surface of the annular pipe 7 is penetrated by four nozzles 9. The spacing between the four nozzles 9 is equal, so that the bottom of the pipe can be cooled and the cleaning box Both sides of 1 are provided with push tube openings 11. The push tube openings 11 are used to push the bellows, which is an existing technology. The inner surface of the cleaning box 1 is connected to a wiping assembly 13 through a driving assembly 12. The wiping assembly 13 can wipe the surface of the bellows. The stuck coolant is wiped, and limit plates 17 are fixedly connected to both sides of the top of the inner cavity of the water storage tank 2. A filter plate 14 is provided between the opposite sides of the two limit plates 17. The filter plate 14 can cool the The impurities in the liquid are filtered, and a sealed door is provided on the front of the water storage tank 2 for taking out the filter plate 14 so as to clean the filter plate 14. One side of the water storage tank 2 is connected with a water pipe 15, and the outside of the water pipe 15 A control valve 16 is fixedly connected to the surface, through which cooling liquid is injected into or discharged from the inside of the water storage tank 2 .

The wiping assembly 13 includes a support ring 131. The upper and lower sides of the inner surface of the support ring 131 are fixedly connected to an electric telescopic rod 133 through a mounting sleeve. A push plate 134 is fixedly connected between the opposite ends of the two electric telescopic rods 133. The push plate 134 There is a rotating ring 136 inside. Both sides of the surface of the rotating ring 136 are connected with rotating pages 137. One side of the two rotating pages 137 is fixedly connected with a connecting plate 139. One side of the connecting plate 139 is fixedly connected with a scrubbing cotton. 138. A number of adapting slots 132 are provided on one side of the scrubbing cotton 138. The opposite sides of the two push plates 134 are fixedly connected with connecting sleeves 135. The inner surfaces of the connecting sleeves 135 are slidingly connected with connecting rods 1312. The connecting rods One end of 1312 penetrates the push plate 134 and extends to the outside of the push plate 134. The outer surface of the rotating page 137 is fixedly connected with the rotating block 1313. The inner surface of the rotating block 1313 is rotationally connected with one end of the connecting rod 1312, and the other end of the connecting rod 1312 A sliding plate 1310 is fixedly connected, a spring 1311 is fixedly connected to one side of the sliding plate 1310, and one end of the spring 1311 is fixedly connected to one side of the inner cavity of the connecting sleeve 135.

The driving assembly 12 includes a driving motor 121 located on the top of the cleaning box 1. The output end of the driving motor 121 is fixedly connected to a driving gear 122. The outer surface of the push plate 134 is fixedly connected to a ring gear 123. The outer surface of the ring gear 123 is connected to the driving gear 122. The outer surface of the push plate 134 is engaged with the outer surface of the push plate 134 and is fixedly connected to the limit ring 124 on both sides of the ring gear 123. The inner surface of the limit ring 124 is rollingly connected with steel balls 126. The steel balls 126 play the role of support and limit. , the inner surface of the cleaning box 1 is provided with a rolling groove 125 at a corresponding position of the steel ball 126, and the outer surface of the steel ball 126 is rollingly connected with the outer surface of the rolling groove 125.

The working principle of the present invention: first connect the water pipe 15 to the external pipeline, open the control valve 16, so that the cooling liquid is transported to the inside of the water storage tank 2, and then close the control valve 16. At this time, the double-wall corrugated pipe can be removed from Push the pipe opening 11 into the inside of the cleaning tank 1, then start the water pump 3, and send the cooling liquid in the water storage tank 2 to the inside of the annular pipe 7 through the water outlet pipe 4, and spray the cooling liquid on both sides through the nozzle 9 The outer surface of the wall bellows absorbs the heat on the surface of the bellows. At this time, the driving motor 121 is started to drive the driving gear 122 to rotate. Through the meshing relationship between the driving gear 122 and the ring gear 123, the push plate 134 is rotated. This When the steel ball 126 rolls on the inner surface of the limit ring 124 and the rolling groove 125, it drives the rotating page 137 to rotate through the connecting rod 1312 in the connecting sleeve 135. At this time, the adapter groove 132 on the scrubbing cotton 138 has a double pair. Wipe the cooling liquid on the outer surface of the wall corrugated pipe and absorb the cooling liquid. When the cleaning of the double-walled corrugated pipe is completed, the electric telescopic rod 133 is used to push the two push plates 134 to move to the relatively close side, and the connection Rotation occurs between the rod 1312 and the rotating block 1313, so that the push plate 134 squeezes the two rotating leaves 137 to rotate on the outer surface of the rotating ring 136. At this time, the spring 1311 is elongated and the two rotating leaves 137 are wiped. The cotton 138 is squeezed, so that the cooling liquid adsorbed in the scrubbing cotton 138 is squeezed out, and the falling cooling liquid falls on the filter plate 14 from the water outlet 5 and the water inlet 6, and the impurities are filtered and fall to the water storage The inside of box 2 is allowed to cool before use again.

The preparation method of the modified glass fiber wool is as follows: place the glass fiber wool in a container, inject an ethanol solution with a concentration of 35% and vinyl triethoxysilane into the container, soak it for 3 minutes, and simultaneously perform Stir, then take out the glass fiber wool and dry it in a dryer to obtain modified glass fiber wool, the diameter of the glass fiber wool is 13 microns.

In step one, the stirring speed of the mixer is 180r/min, and the stirring time is 5 minutes. In step two, the extrusion temperature of the screw extruder is 220°C, and the mold temperature of the screw extruder is set to 235°C. In step three, the internal temperature of the drying box is set to 90°C, and the drying time in the drying box is 50 seconds.

In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience. By describing the present invention and simplifying the description, it is not intended to indicate or imply that the device or element referred to must have a specific orientation, and be constructed and operated in a specific orientation, and therefore, is not to be construed as a limitation of the present invention. In addition, the terms "first" and "second" are for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, features defined by “first” and “second” may explicitly or implicitly include one or more of these features. In the description of the present invention, unless otherwise stated, the meaning of "plurality" is two or more.

In the description of the present invention, it should be noted that, unless otherwise clearly stated and limited, the terms "installation", "connection", "connection", etc. should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. , or integrally connected; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.

An embodiment of the present invention has been described in detail above, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the implementation scope of the present invention. All equivalent changes and improvements made within the scope of the present invention shall still fall within the scope of the patent of the present invention.

Claims (6)

1. The production process of ultra-micro glass fiber cotton reinforced HDPE double-wall corrugated pipe is characterized by including the following steps: Step 1: Weigh 50-55 parts of HDPE resin, 20-30 parts of modified glass fiber cotton and 3-5 parts of processing aids according to the following weight parts, then put the above materials into the mixer to mix evenly, and then pass through Inside the screw extruder; Step 2: Use the screw extruder to extrude the outer wall and the inner wall in a coating and co-extrusion manner, and then feed the outer wall and the inner wall into the molding machine through traction, bond the outer wall and the inner wall through pressure, and use negative pressure The adsorption method forms ripples on the surface of the outer wall; Step 3: Send the formed pipe into the cooling water tank for cooling to obtain the finished pipe, then dry the surface of the pipe through a drying box, and then use a traction cutting machine to photoelectrically position and cut the pipe to obtain pipe fittings; The cooling water tank consists of a cleaning tank (1) and a water storage tank (2) located at the bottom of the cleaning tank (1). A water outlet (5) is provided at the bottom of the cleaning tank (1), and a water outlet (5) is provided at the top of the water storage tank (2). There is a water inlet (6), and a water pump (3) is fixedly connected to the bottom of the inner cavity of the water storage tank (2). The water outlet of the water pump (3) is connected with a water outlet pipe (4), and one end of the water outlet pipe (4) is in sequence. It penetrates the water storage tank (2) and the cleaning tank (1) and extends to the inside of the cleaning tank (1). The outer surface of the cleaning tank (1) is fixedly connected with a support plate (10), and the bottom of the support plate (10) is in contact with the cleaning tank (1). The bottom of the inner cavity of the box (1) is fixedly connected, and the outer surface of the outlet pipe (4) is fixedly connected with an annular pipe (7). The outer surface of the annular pipe (7) is fixedly connected with three fixing sleeves (8). The fixing sleeves (8) ) is fixedly connected to the inner surface of the cleaning box (1). The outer surface of the annular pipe (7) is penetrated by four nozzles (9). The spacing between the four nozzles (9) is equal, so that the pipe can be cleaned. The bottom is cooled, and push tube openings (11) are provided on both sides of the cleaning box (1). The inner surface of the cleaning box (1) is connected to a wiping assembly (13) through the driving assembly (12). The wiping assembly (13) can Wipe the coolant adhered to the surface of the bellows, and limit plates (17) are fixedly connected to both sides of the top of the inner cavity of the water storage tank (2). There is a gap between the opposite sides of the two limit plates (17). The filter plate (14) can filter impurities in the coolant, and a sealing door is provided on the front of the water tank (2) for taking out the filter plate (14). A water pipe (15) is connected and penetrated on one side, and a control valve (16) is fixedly connected to the outer surface of the water pipe (15); The wiping assembly (13) includes a support ring (131). The upper and lower parts of the inner surface of the support ring (131) are fixedly connected to an electric telescopic rod (133) through a mounting sleeve. A push plate (134) is fixedly connected, and a rotating ring (136) is provided inside the pushing plate (134). Both sides of the surface of the rotating ring (136) are connected with rotating pages (137), and the two rotating pages (137) A connecting plate (139) is fixedly connected to one side of the connecting plate (139), a scouring cotton (138) is fixedly connected to one side of the connecting plate (139), and several adapter slots (132) are provided on one side of the scouring cotton (138). The relatively distant sides of each push plate (134) are fixedly connected with a connecting sleeve (135). The inner surface of the connecting sleeve (135) is slidingly connected with a connecting rod (1312). One end of the connecting rod (1312) penetrates the push plate (134). ) and extends to the outside of the push plate (134). The outer surface of the rotating page (137) is fixedly connected with the rotating block (1313). The inner surface of the rotating block (1313) is rotationally connected with one end of the connecting rod (1312). The connecting rod The other end of (1312) is fixedly connected with a sliding plate (1310), one side of the sliding plate (1310) is fixedly connected with a spring (1311), and one end of the spring (1311) is fixedly connected with one side of the inner cavity of the connecting sleeve (135) ; The driving assembly (12) includes a driving motor (121) located on the top of the cleaning box (1). The output end of the driving motor (121) is fixedly connected with a driving gear (122), and the outer surface of the push plate (134) is fixedly connected with a ring gear. (123), the outer surface of the ring gear (123) meshes with the outer surface of the driving gear (122), and the outer surface of the push plate (134) located on both sides of the ring gear (123) is fixedly connected to the limiting ring (124) , the inner surface of the limit ring (124) is rollingly connected with steel balls (126), and the steel balls (126) play the role of support and limit. The inner surface of the cleaning box (1) is provided with rolling steel balls (126) at the corresponding positions. groove (125), the outer surface of the steel ball (126) is rollingly connected with the outer surface of the rolling groove (125). 2. The production process of ultra-micro glass fiber wool reinforced HDPE double-wall corrugated pipe according to claim 1, characterized in that the preparation method of the modified glass fiber wool is: placing the glass fiber wool in a container, and Inject vinyltriethoxysilane and ethanol solution with a concentration of 20%-35% into the container and soak it for 1-3 minutes while stirring, then take out the glass fiber wool and dry it in a dryer. Thus modified glass fiber wool is obtained. 3. The production process of ultra-fine glass fiber wool reinforced HDPE double-wall corrugated pipe according to claim 2, characterized in that the diameter of the glass fiber wool is 10-13 microns. 4. The production process of ultra-micro glass fiber wool reinforced HDPE double-wall corrugated pipe according to claim 3, characterized in that in the step one, the stirring speed of the mixer is 120-180r/min, and the stirring time is 3-5min . 5. The production process of ultra-micro glass fiber wool reinforced HDPE double-wall corrugated pipe according to claim 4, characterized in that the extrusion temperature of the screw extruder in step two is 200-220°C, and the screw extrusion The mold temperature of the machine is set to 220-235°C. 6. The production process of ultra-fine glass fiber cotton reinforced HDPE double-wall corrugated pipe according to claim 5, characterized in that in step three, the internal temperature of the drying box is set to 70-90°C, and the drying box is dried in the drying box. The drying time is 30-50s.