CN118528523A - Preparation method of plastic pipe with rice weight controller - Google Patents
Preparation method of plastic pipe with rice weight controller Download PDFInfo
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- CN118528523A CN118528523A CN202410686825.7A CN202410686825A CN118528523A CN 118528523 A CN118528523 A CN 118528523A CN 202410686825 A CN202410686825 A CN 202410686825A CN 118528523 A CN118528523 A CN 118528523A
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- 229920003023 plastic Polymers 0.000 title claims abstract description 51
- 239000004033 plastic Substances 0.000 title claims abstract description 51
- 235000007164 Oryza sativa Nutrition 0.000 title claims abstract description 41
- 235000009566 rice Nutrition 0.000 title claims abstract description 41
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 240000007594 Oryza sativa Species 0.000 title 1
- 239000002994 raw material Substances 0.000 claims abstract description 59
- 241000209094 Oryza Species 0.000 claims abstract description 40
- 230000005484 gravity Effects 0.000 claims abstract description 33
- 238000003860 storage Methods 0.000 claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 claims abstract description 22
- 238000007599 discharging Methods 0.000 claims abstract description 19
- 238000004364 calculation method Methods 0.000 claims abstract description 14
- 230000006698 induction Effects 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 11
- 230000001681 protective effect Effects 0.000 claims description 5
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- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 4
- 239000011425 bamboo Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 2
- 244000082204 Phyllostachys viridis Species 0.000 claims 1
- 238000009826 distribution Methods 0.000 claims 1
- 229920001903 high density polyethylene Polymers 0.000 description 18
- 239000004700 high-density polyethylene Substances 0.000 description 18
- 239000000463 material Substances 0.000 description 13
- 238000001125 extrusion Methods 0.000 description 11
- 239000000203 mixture Substances 0.000 description 11
- 238000004513 sizing Methods 0.000 description 5
- 241001330002 Bambuseae Species 0.000 description 3
- 239000004594 Masterbatch (MB) Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000004595 color masterbatch Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
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- 238000003908 quality control method Methods 0.000 description 2
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- 238000005303 weighing Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a preparation method of a plastic pipe with a rice weight controller, which comprises the steps of calculating the proportion and density of each component of raw materials, calculating the volume of the plastic pipe according to the outer diameter, the wall thickness and the length of the plastic pipe, calculating the rice weight, and setting and adjusting the discharging speed, the screw rotating speed, the traction speed, the flow per revolution and the flow per hour of the rice weight controller on a plastic pipe production line by the rice weight controller according to the target values of the raw material density, the specification model and Mi Chongshe so as to meet the requirement that the rice weight of the finally produced plastic pipe reaches the rice weight setting target value. The rice weight controller is provided with the left baffle and the right baffle which are distributed in a staggered manner in the conveying cylinder of the storage hopper, so that the problems that the gravity sensor is impacted and the calculation accuracy is high are avoided. The rice weight controller is adopted, so that the rice weight can be always kept to the minimum standard, fluctuation caused by the raw materials is stabilized, the production process is more stable and stable, the raw materials are saved, and the production cost is reduced.
Description
Technical Field
The invention relates to the technical field of preparation of plastic pipes, in particular to a preparation method of a plastic pipe with a meter weight controller.
Background
The plastic pipe is used as an important component of chemical building materials, and is widely accepted by wide users in terms of excellent performance, sanitation, environmental protection, low consumption and the like. The pipe production line consists of a feeding system, a control system, an extruder, a machine head, a sizing sleeve, a cooling system, a plastic sucking forming machine, a tractor, a planetary cutting device and a material turning frame, and the problems of fluctuation of the meter weight, uneven thickness, eccentricity of the pipe and the like of the pipe caused by the density and the proportion change of raw materials easily occur in the pipe production process, so that the quality control method and the quality control system of the pipe are required to be developed to stabilize the meter weight of the pipe, and the production continuity and the stability are improved.
The meter weight controller is a device for comparing the actual weight of the plastic pipe with the standard weight of one meter by measuring the actual weight of the plastic pipe of one meter and then making the actual weight of the plastic pipe of one meter approach to the standard weight by controlling the usage amount of the injection material. The meter weight controller is the basis of automation of the plastic pipe extrusion production line. Basic principle of the rice weight controller: since the variation in the density of the raw material causes the variation in the amount of feed during extrusion, these variations have a considerable effect on the weight per meter and therefore also on the quality of the product. Manual adjustment of the draw-down speed or extrusion speed can make up for these variations briefly, but reduces the stability of the overall extrusion process. Therefore, it is necessary to automatically complete the measurement, calculation, output each link, and closed-loop control to achieve the purpose. The automatic weighing and high-level monitoring system can continuously and highly accurately measure the gravity and monitor the liquid materials, is suitable for hopper scales of various materials, can adjust the weight of rice and the extrusion amount by recording measurement data and an integrated control system, realizes stable production with less material consumption by controlling the accurate extrusion amount and the weight of each meter of continuous products, meets the dual requirements of improving the product quality and saving raw materials, and can acquire the most detailed production planning and arrangement and ensure the stability of the production process of the products.
The existing rice weight controller utilizes advanced digital electronic technology to measure at high speed, calculates the rice weight (kg/m) and extrusion quantity (kg/hr) to compare the set value of the production formula, performs closed-loop control on the rice weight (kg/m) and extrusion quantity (kg/hr), saves raw materials, ensures quality, can be arranged in any extruder, and controls the extrusion quantity by collecting the speed of the main machine of the extruder and controlling the RPM of the extruder. The existing rice weight controller works by matching with an extruder, and has the advantages of low efficiency, high energy consumption and high cost.
CN206161124U discloses a rice weight controller, including feed inlet, discharge gate, quick-witted case and control module, the machine incasement portion includes: the feeding bin is arranged at the uppermost part of the case and is communicated with the feeding port; the control valve is arranged on the discharge nozzle of the upper bin; the impact plate is arranged right below the discharge nozzle and is separated from the discharge nozzle by a distance; the impact sensing device is arranged below the impact plate. And (3) freely falling the material from a position with a certain height, and calculating the total mass of the passed material by using a function by the control module according to the impact force and time on the impact plate receiving the impact of the material. However, since the weight flow amount of the raw material on the impact plate is low, the raw material stays on the impact plate, and the sensing accuracy is affected.
CN210211277U discloses an automatic control system of a rice weighing machine, comprising a machine case, wherein the upper part of the machine case is provided with a storage bin with an inlet connected with a feed inlet of the machine case, a discharge nozzle at the lower end of the storage bin is provided with a control valve capable of controlling raw material flow, an induction device which is at a certain distance from the discharge nozzle is arranged right below the discharge nozzle, the induction device comprises a hollow induction ball, the inner wall of the induction ball is provided with an induction sticker, the outer part of the induction ball is provided with an arc-shaped fixed scraping plate, and the outer part of the induction ball is provided with a rotating component capable of enabling the induction ball to rotate; meanwhile, the scraper can be arranged outside the induction ball, so that the contact top end of the induction ball is kept clean, and the induction is more accurate. However, the sensing device receives the impact force information and time information of the falling of the raw materials, calculates the weight of the passing raw materials and the input speed of the raw materials by using a function, is easily affected by the impact of free falling motion of the raw materials, and has the problems of impact and accuracy of calculation accuracy.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a preparation method of a plastic pipe with a rice weight controller.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The preparation method of plastic pipe with meter weight controller includes calculating density of raw material according to proportion and density of raw material, and calculating volume of plastic pipe according to outer diameter, wall thickness and length of plastic pipe. Setting the calculated meter weight value into a target value of a meter weight controller on a plastic pipe production line, and setting and adjusting the discharging speed, the screw rotating speed, the traction speed, the flow per revolution and the flow per hour of the meter weight controller on the plastic pipe production line by the meter weight controller according to the raw material density, the specification model (the outer diameter and the wall thickness of the pipe) and the Mi Chongshe target value so as to meet the condition that the meter weight of the finally produced plastic pipe reaches the meter weight setting target value.
Assuming that the raw material contains a certain component X, the weight of which is Mx and the density of which is ρ x, the volume Vx of which is
Thus, the total weight M' of the raw materials is
The total volume V' of the raw materials is
Then the calculation formula (1) of the density ρ of the raw material is
(1)
Assuming that the outer diameter of the pipe is dn, the unit is mm, the wall thickness is en, the unit is mm, and the inner diameter of the pipe is dn-2en, the unit is mm. From this, the cross-sectional area S of the pipe can be calculated as the difference between the area of the circle where the outer diameter of the pipe is located and the area of the circle where the inner diameter of the pipe is located, in mm 2.
S=π×(dn/2)2-π×[(dn-2en)/2]2=π×(dn-en)×en
The length L of the pipe is 1m, converted into 1000 mm, so the volume V of the pipe of 1 meter is the product of the cross section area and the length of the pipe, and the unit is mm 3.
V=S×L=1000π×(dn-en)×en
The density of the pipe is the raw material density ρ in g/cm 3, and the weight of the pipe of 1 meter can be calculated, namely the meter weight M is the product of the volume V of the pipe of 1 meter and the density ρ of the pipe, the unit is g, the unit conversion is carried out on V, and the unit conversion is carried out on mm 3 to cm 3.
M=ρ×V=ρ×[1000π×(dn-en)×en]/1000 =ρ×π×(dn-en)×en(g)
If converting the unit into Kg, the calculation formula (2) of the meter weight is obtained by converting the unit into the calculation formula:
M=ρ×π×(dn-en)×en/1000(Kg)(2)
The rice weight controller comprises a storage hopper, a feed inlet, a conveying cylinder, a left baffle, a right baffle, a discharge nozzle, a control valve, a gravity sensor, a control unit, a discharge outlet, a protective cover and an auxiliary rod.
The upper part of the storage hopper is cylindrical, the middle part of the storage hopper is a funnel with a reduced diameter from top to bottom, and the lower part of the storage hopper is cylindrical; the feeding port is located the centre of a circle department at storage hopper top, the transport section of thick bamboo is located the inside axis of storage hopper, transport section of thick bamboo upper end with the feeding port is connected, transport section of thick bamboo is inside to be provided with left baffle and the right baffle that stagger each other distributes from the upper end to the lower extreme, the baffle all inclines downwards about, so the free fall motion track of change raw materials is the landing motion track that inclines, reduces the velocity of movement of raw materials. The conveying cylinder is characterized in that the lower end of the conveying cylinder is connected with a discharging nozzle, a control valve is arranged at the discharging nozzle, a gravity sensor is arranged right below the discharging nozzle, the discharging nozzle is located at the bottommost part of the storage hopper, a protective cover is arranged around the discharging nozzle, and the control unit is arranged on the outer wall of the storage hopper.
Further, storage hopper upper portion, middle part, lower part, feed inlet, transport cylinder, discharge gate, gravity sensor, discharge gate, the coaxial setting of safety cover and axis pass through the center of discharge gate.
By adopting the technical scheme, the raw materials can be ensured to fall down along the central axis direction of the storage hopper.
Further, a control valve capable of controlling raw material flow is arranged at the discharge nozzle at the lower part of the storage hopper, and the control valve can control and adjust the discharge weight and speed of the discharge nozzle according to instructions of the control unit.
Further, the gravity sensor is positioned right below the discharging nozzle, and the longest distance between the discharging nozzle and the gravity sensor is 20 mm-30 mm.
By adopting the technical scheme, the raw materials can fall onto the gravity sensor from the discharge nozzle at a low speed, so that the problems of impact on the gravity sensor and accuracy of calculation precision are avoided; meanwhile, liquid splashing generated when raw materials contact the gravity sensor is reduced.
Further, the gravity sensor may be one or more integrated gravity sensors, which may automatically compensate for potential fluctuations in bulk density.
Further, the gravity sensor is a hollow induction ball, one end of the induction ball is provided with an auxiliary rod, the axis of the auxiliary rod passes through the center of the induction ball and is connected with the storage hopper through welding, and the auxiliary rod is used for supporting the gravity sensor in an auxiliary mode.
The beneficial effects of the invention are as follows:
1. Calculating the density of the raw materials according to the proportion and the density of each component of the raw materials, calculating the volume of the plastic pipe according to the outer diameter, the wall thickness and the length of the plastic pipe, calculating the meter weight according to the calculated density, the wall thickness and the length of the plastic pipe, setting the meter weight into a target value of a meter weight controller on a plastic pipe production line, and setting and adjusting the discharging speed, the screw rotating speed, the traction speed, the flow rate per revolution and the flow rate per hour of the meter weight controller on the plastic pipe production line according to the target value of the raw material density, the specification model (the outer diameter and the wall thickness of the pipe) and Mi Chongshe by the meter weight controller so as to meet the requirement that the meter weight of the finally produced plastic pipe reaches the meter weight setting target value.
2. According to the invention, the rice weight controller is provided with the conveying cylinder in the storage hopper, and the left baffle and the right baffle which are distributed in a staggered manner are arranged in the conveying cylinder, so that the free falling motion trail of the raw materials is changed into an inclined sliding motion trail, the motion speed of the raw materials is reduced, the raw materials fall onto the gravity sensor from the discharge nozzle at a low speed, and the problems of impact on the gravity sensor and accuracy of calculation accuracy are avoided; meanwhile, liquid splashing generated when raw materials contact the gravity sensor is reduced.
3. The rice weight controller can always keep the rice weight to the minimum standard, stabilize the fluctuation caused by raw materials, enable the production process to be more stable and stable, control the tolerance to be stable, improve the consistency of products, and reduce the rejection rate, thereby saving the raw materials and reducing the production cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those skilled in the art from this disclosure that the drawings described below are merely exemplary and that other embodiments may be derived from the drawings provided without undue effort.
The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the invention, which is defined by the claims, so that any structural modifications, changes in proportions, or adjustments of sizes, which do not affect the efficacy or the achievement of the present invention, should fall within the scope of the invention.
Fig. 1 is a schematic structural diagram of a meter weight controller of a plastic pipe preparation method according to the present invention.
Shown in fig. 1:1. the automatic feeding device comprises a storage hopper, 2, a feed inlet, 3, a conveying cylinder, 4, a left baffle, 5, a right baffle, 6, a discharge nozzle, 7, a control valve, 8, a gravity sensor, 9, a control unit, 10, a discharge port, 11, a protective cover, 12 and an auxiliary rod.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The terms such as "left", "right", "upper", "lower" and the like are also used in the present specification for convenience of description, and are not intended to limit the scope of the present invention, but rather to change or adjust the relative relationship thereof, and are also considered to be within the scope of the present invention without substantial change of technical content.
Referring to fig. 1, the invention discloses a rice weight controller for a plastic pipe preparation method, which comprises a storage hopper 1, a feed inlet 2, a conveying cylinder 3, a left baffle 4, a right baffle 5, a discharge nozzle 6, a control valve 7, a gravity sensor 8, a control unit 9, a discharge outlet 10, a protection cover 11 and an auxiliary rod 12.
This example exemplifies the production of High Density Polyethylene (HDPE) tubing.
The high-density polyethylene in the raw materials adopts white high-density polyethylene produced by Shanxi prolonged petroleum and Ann energy chemical industry Limited liability company, the brand is 23050, the execution standard is Q/YNN CP006-2023, the bag is 25 Kg, and the density is 0.95 g/cm. The raw material color master batch adopts black master batch produced by the maokang material technology (well-known) limited company, the brand is BB571L, the carbon black content is 45.28%, and the density is 1.17 g/cm. The weight ratio of the high-density polyethylene to the black master batch is 95 percent: 5, the raw material density ρ can be calculated to be 0.96 g/cm by referring to the density calculation formula (1).
The mixer used in this example is a stainless steel vertical plastic mixer produced by Huang Jiangjia jun plastic mechanical processing plant in Dongguan city, guangdong; the feeder is a King brand mechanical JL280 microcomputer full-function feeder manufactured by benevolent government mechanical limited company in Zhangjinggang; the pipe extrusion production line is SLPE-315A type polyethylene (high-efficiency) pipe extrusion production line produced by Zhejiang double forest environment Co., ltd; the main screw extruder is an SH90X33 single screw plastic extruder manufactured by Zhejiang double forest electro-mechanical technology Co., ltd, the screw diameter is 90 mm, the motor power is 160 KW, and the highest screw rotating speed is 120 rpm; the auxiliary screw extruder is an SJ25X25 type single screw plastic extruder manufactured by Zhejiang double forest electro-mechanical technology Co., ltd, the screw diameter is 25 mm, the motor power is 1.1 KW, and the screw highest rotating speed is 25 rpm.
In this embodiment, the High Density Polyethylene (HDPE) pipe is 280 pipe, the outer diameter of the pipe is 280 mm, the wall thickness is 16.6 mm, and the raw material density is 0.96 g/cm according to the calculation result, so that the meter weight M of the High Density Polyethylene (HDPE) 280 pipe can be calculated to be 13.2 Kg by referring to the meter weight calculation formula (2).
The working process of the High Density Polyethylene (HDPE) 280 pipe of the embodiment is as follows:
On the display screen of the control unit 9 of the meter weight controller, 13.2 Kg meters weight, 0.96 g/cm of raw material density, 280. 280 mm specifications and 16.6 mm wall thickness are input in the set value. The control unit 9 automatically calculates the set point: the screw speed was 80 r/min, the traction speed was 0.56 m/min, the per-revolution flow was 60 g, and the hour flow was 450 Kg.
The HDPE and the black master batch are added into a mixer according to the weight proportion for fully mixing, and the mixture 100 is obtained.
The mixed material 100 enters the conveying cylinder 3 from the feed inlet 2 of the storage hopper 1, after the mixed material 100 sequentially passes through the left baffle plate 4 and the right baffle plate 5 which are distributed in a staggered way, the free falling body movement track is changed into an inclined sliding movement track, the inclined sliding movement track slides to the discharge nozzle 6 and then falls onto the gravity sensor 8 at a low speed, the gravity sensor 8 senses the gravity and time information of the mixed material 100, the control unit 9 calculates the weight and the input speed of the mixed material 100 through a function, and the control valve 7 adjusts and controls the discharge weight and the discharge speed of the discharge nozzle 6; the mixture 100 flows out from the discharge port 10 of the hopper 1 and enters the screw extruder.
The mixture 100 was heated in three stages (feed stage, compression stage, homogenization stage) in a main screw extruder at 200 c to bring the mixture 100 to a completely uniform plasticized state. The screw continuously and uniformly delivers the molten mixture 100 into the head mold. Meanwhile, the HDPE mixture 200 containing the color standard line color master batch is added into a side auxiliary screw extruder, and three-section heating (a feeding section, a compression section and a homogenizing section) is carried out, wherein the heating temperature is 200 ℃, so that the mixture 200 is in a completely uniform plasticizing state. The molten mixture 200 is then extruded and fed into the die from the side of the die.
The molten mixture 100 is extruded in a nose die 3 onto the circumference of the die and is extruded slowly into an HDPE 280 primary blank pipe; simultaneously, the molten mixture 200 flows out from small holes of the color mark line in the machine head die to a designated area on the surface of the HDPE 280 primary blank pipe to form the color mark line; the blends 100 and 200 were thus co-extruded into HDPE 280 as a preform tube into a sizing sleeve.
The HDPE 280 primary blank pipe is cooled by a cooling water system in a sizing sleeve, then is subjected to vacuum sizing and sizing, and finally is shaped by a plastic sucking forming machine, and is pulled into a planetary cutting device by a tractor to be cut and then is turned over to a material turning frame to obtain the HDPE 280 pipe.
Of course, the embodiments of the present invention are all preferred embodiments of the present invention, and the protection scope of the present invention is not limited in this way, so: all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.
Claims (10)
1. A preparation method of a plastic pipe containing a meter weight controller is characterized by comprising the following steps: calculating the density of the raw materials according to the proportion and the density of each component of the raw materials, and calculating the volume of the plastic pipe according to the outer diameter, the wall thickness and the length of the plastic pipe so as to calculate the meter weight; setting the rice weight into a target value of a rice weight controller on a plastic pipe production line, and setting and adjusting the discharging speed, the screw rotating speed, the traction speed, the flow per revolution and the flow per hour of the rice weight controller on the plastic pipe production line by the rice weight controller according to the raw material density, the specification model (the outer diameter and the wall thickness of the pipe) and the Mi Chongshe target value so as to meet the condition that the rice weight of the finally produced plastic pipe reaches the rice weight setting target value.
2. The method for preparing the plastic pipe with the rice weight controller according to claim 1, which is characterized in that:
The calculation formula (1) for calculating the density of the raw material from the proportion and density of each component of the raw material is
(1)
Wherein ρ is the density of the raw material, M 'is the total weight of the raw material, V' is the total volume of the raw material, mx is the weight of a certain component X, and ρ x is the density of a certain component X.
3. The method for preparing the plastic pipe with the rice weight controller according to claim 1, which is characterized in that:
The calculation formula (2) for calculating the meter weight by the density, the outer diameter, the wall thickness and the length of the plastic pipe is as follows:
M=ρ×V=ρ×[1000π×(dn-en)×en]/1000 =ρ×π×(dn-en)×en(2)
Wherein M is meter weight, ρ is density of the raw material, dn is outer diameter, and en is inner diameter.
4. The method for preparing the plastic pipe with the rice weight controller according to claim 1, which is characterized in that: the rice weight controller comprises a storage hopper (1), a feed inlet (2), a conveying cylinder (3), a left baffle plate (4), a right baffle plate (5), a discharge nozzle (6), a control valve (7), a gravity sensor (8), a control unit (9), a discharge port (10), a protective cover (11) and an auxiliary rod (12); the utility model discloses a feed hopper, including storage hopper (1), feed inlet (2), feed cylinder (3), feed inlet (2), feed cylinder (3) upper portion is cylindric, and the middle part is the funnel that from the top down diameter reduces, and the lower part is cylindric, feed inlet (2) are located storage hopper (1) top centre of a circle department, feed cylinder (3) are located on the inside axis of storage hopper (1), feed cylinder (3) upper end with feed inlet (2) are connected, feed cylinder (3) are inside to be provided with left baffle (4) and right baffle (5) of mutual staggered distribution from the upper end to the lower extreme, left baffle (4) and right baffle (5) all incline downwards to this free fall motion track that changes the raw materials is slope landing motion track, reduces the velocity of motion of raw materials.
5. The method for preparing the plastic pipe with the rice weight controller according to claim 4, which is characterized in that: the lower end of the conveying cylinder (3) is connected with a discharging nozzle (6), a control valve (7) capable of controlling raw material flow is arranged at the discharging nozzle (6), the control unit (9) is arranged on the outer wall of the storage hopper (1), and the control valve (7) can control the discharging weight and the discharging speed of the discharging nozzle (6) according to instructions of the control unit (9).
6. The method for preparing the plastic pipe with the rice weight controller according to claim 4, which is characterized in that: the gravity sensor (8) is positioned right below the discharge nozzle (6), the longest distance between the discharge nozzle (6) and the gravity sensor (8) is 20 mm-30 mm, the raw materials can fall onto the gravity sensor (8) from the discharge nozzle (6) at a low speed, and the problems that the gravity sensor (8) is impacted and the calculation accuracy is high are avoided; meanwhile, liquid splashing generated when raw materials contact the gravity sensor (8) is reduced.
7. The method for preparing the plastic pipe with the rice weight controller according to claim 4, which is characterized in that: the discharging hole (10) is positioned at the bottommost part of the storage hopper (1), and a protective cover (11) is arranged around the discharging hole (10) so as to prevent raw materials from overflowing outwards from the discharging hole.
8. The method for preparing the plastic pipe with the rice weight controller according to claim 4, which is characterized in that: the storage hopper (1) upper portion, middle part, lower part, feed inlet (2), transport section of thick bamboo (3), discharge gate (6), gravity sensor (8), discharge gate (10), safety cover (11) coaxial setting and axis pass through the center of discharge gate (6), can guarantee that the raw materials falls down along the axis direction of storage hopper.
9. The method for preparing the plastic pipe with the rice weight controller according to claim 4, which is characterized in that: the gravity sensor (8) may be one or more integrated gravity sensors (8) that automatically compensate for potential fluctuations in bulk density.
10. The method for preparing the plastic pipe with the rice weight controller according to claim 4, which is characterized in that: the gravity sensor (8) is a hollow induction ball, one end of the induction ball is provided with an auxiliary rod (12), the axis of the auxiliary rod (12) passes through the center of the induction ball and is connected with the storage hopper (1) through welding, and the auxiliary rod (12) is used for supporting the gravity sensor (8) in an auxiliary mode.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410686825.7A CN118528523A (en) | 2024-05-30 | 2024-05-30 | Preparation method of plastic pipe with rice weight controller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410686825.7A CN118528523A (en) | 2024-05-30 | 2024-05-30 | Preparation method of plastic pipe with rice weight controller |
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| Publication Number | Publication Date |
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| CN118528523A true CN118528523A (en) | 2024-08-23 |
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| CN202410686825.7A Pending CN118528523A (en) | 2024-05-30 | 2024-05-30 | Preparation method of plastic pipe with rice weight controller |
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- 2024-05-30 CN CN202410686825.7A patent/CN118528523A/en active Pending
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