CN113043572A - Cleaning method for heating pipe of wire extruder - Google Patents
Cleaning method for heating pipe of wire extruder Download PDFInfo
- Publication number
- CN113043572A CN113043572A CN202110355152.3A CN202110355152A CN113043572A CN 113043572 A CN113043572 A CN 113043572A CN 202110355152 A CN202110355152 A CN 202110355152A CN 113043572 A CN113043572 A CN 113043572A
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- Prior art keywords
- heating pipe
- cleaning
- spring
- plastic
- heating
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 109
- 238000000034 method Methods 0.000 title claims abstract description 57
- 238000004140 cleaning Methods 0.000 title claims abstract description 53
- 239000004033 plastic Substances 0.000 claims abstract description 81
- 229920003023 plastic Polymers 0.000 claims abstract description 81
- 238000005452 bending Methods 0.000 claims abstract description 7
- 239000004677 Nylon Substances 0.000 claims description 5
- 229920001778 nylon Polymers 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract 1
- 239000013049 sediment Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 230000008021 deposition Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000006748 scratching Methods 0.000 description 2
- 230000002393 scratching effect Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/27—Cleaning; Purging; Avoiding contamination
- B29C48/2715—Cleaning; Purging; Avoiding contamination of plasticising units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/17—Articles comprising two or more components, e.g. co-extruded layers the components having different colours
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses a cleaning method of a heating pipe of an electric wire extruder in the field of cable production equipment, which comprises a primary cleaning method and a secondary cleaning method, wherein the primary cleaning method is that an elastic dredging piece extends into the heating pipe to grab plastic attachments and then pulls out the plastic attachments in a heating state, and the secondary cleaning method is that a flexible dredging rod is inserted into the heating pipe to scrape the residual attachments on the inner wall of the heating pipe after the primary cleaning. The invention can solve the problems that plastic attachments of a 90-degree bending heating pipe of a small-sized extruder in the prior art are difficult to clean and the inner wall of the heating pipe is easy to damage by the prior cleaning technology.
Description
Technical Field
The invention relates to the field of electric wire production equipment, in particular to a method for cleaning a heating pipe of an electric wire extruder.
Background
The electric wire comprises a double-layer double-color electric wire, a double-layer single-color electric wire, a yellow/green electric wire and the like which are divided according to an insulating structure, the electric wire is commonly produced by a large extruder and a small extruder, the heights of the installation centers of the large extruder and the small extruder are inconsistent due to the limitation of the installation positions of the extruders, and the height of the center of the small extruder is higher than that of the center of the large extruder under the common condition, so that the flowing directions of plastics of the two extruders in the equipment are not completely consistent. In the process of producing the electric wire for a long time, different plastic materials and different color materials are adopted and can be deposited at a plastic flowing place, the more the deposits are, the plastic deposits can deteriorate under the high-temperature and high-pressure state for a long time, and are continuously accumulated after continuously flowing out a small amount, and in order to ensure the quality of the electric wire product, the plastic deposits need to be cleaned at the specified time. The plastic in the large extruder moves along the inner wall of the screw barrel into the machine head under the push of the rotating screw rod, and meets the plastic of the small extruder in the mold. The plastic in the small extruder moves along the inner wall of the screw cylinder and then enters the heating pipe bent by 90 degrees, vertically enters the machine head from top to bottom, and meets the plastic of the large extruder in the die. The plastic flow in the large extruder is mostly linear motion, the plastic deposit is less generated and is better cleaned, but the plastic deposit is very easy to accumulate in the 90-degree bent heating pipe of the small extruder. This heating pipe runner diameter of little extruder is little, has 90 crookedness again, the tradition adopts two sections tip to form 90 return bends for the steel pipe concatenation combination of 45 elbows with heating coil heat welding, the resistance that plastics received when this 90 return bends is being passed through is great, two steel pipe connection positions have tiny clearance, very easily form the attachment, adopt the mode of taking apart the combination to clear up when the clearance, though the clearance is comparatively clean, but all need the dismouting at every turn, waste time and energy, damage easily. Then, the integral stainless steel pipe is bent to 90 degrees and processed into smooth and non-corrugated inner wall at the bent part, and then a heater is distributed around the integral stainless steel pipe to form the heating pipe by using a method of casting aluminum, so that relatively few plastic attachments exist, but the plastic attachments at the bent part are not easy to clean.
The plastic attachments are tightly attached in the 90-degree bent heating pipe and are not easy to fall off, the flow passage area of the small extruder is easy to reduce after the plastic attachments are stacked to a large extent, the extrusion capacity of the small extruder is reduced and even blocked, and the outer layer material extruded by the small extruder cannot completely coat the inner layer material to form waste products. The existing screwdriver is adopted to stretch into the heating pipe for cleaning, the heating pipe cannot be effectively cleaned at a 90-degree bent part, the inner wall is very easy to scratch, plastic attachments are more easily accumulated on the damaged inner wall of the heating pipe, and vicious circle is formed. How to clean plastic attachments accumulated in a 90-degree bent heating pipe of a small extruder is a difficult problem.
Disclosure of Invention
The invention aims to provide a method for cleaning a heating pipe of an electric wire extruder, which aims to solve the problems that plastic attachments of a 90-degree bent heating pipe of a small-sized extruder are difficult to clean in the prior art, and the inner wall of the heating pipe is easily damaged in the prior art.
In order to achieve the purpose, the basic technical scheme of the invention is as follows: a cleaning method of a heating pipe of an electric wire extruder comprises a primary cleaning method and a secondary cleaning method, wherein the primary cleaning method comprises the steps that an elastic dredging piece stretches into the heating pipe to grab plastic attachments and then pulls out the plastic attachments in a heating state, and the secondary cleaning method comprises the steps that a flexible dredging rod is inserted into the heating pipe to scrape the residual attachments on the inner wall of the heating pipe after primary cleaning.
The principle and the advantages of the scheme are as follows: during the in-service use, make under the heating state with the heating tube inner wall contact's plastics attachment intensification softening, stretch into the heating tube with elasticity mediation piece and snatch the plastics attachment, elasticity mediation piece pushes away through elasticity in the heating tube activity process and disturbs the plastics attachment and drop from the heating tube inner wall, and then can follow elasticity mediation piece and break away from the heating tube, the reuse has flexible mediation stick and inserts the heating tube on this basis, the mediation stick scrapes remaining a small amount of plastic deposit on with the heating tube crooked inner wall, whole heating tube runner is whole clean up like this. And earlier clear up the great plastics attachment in surface course with elasticity mediation piece, then the clearance of remaining plastic deposit is carried out to flexible mediation stick of reuse, and flexible mediation stick can effectively scrape the plastic deposit of heating pipe inner wall and avoid causing the scratch, and elasticity mediation piece and flexible mediation stick can effectively laminate the 90 bent structure of heating pipe, and is more thorough to the plastics attachment clearance of heating pipe inner wall.
Furthermore, one end of the elastic dredging part is provided with a grapple, the other end of the elastic dredging part is connected with a rotary driving part, and the grabbing mode of the elastic dredging part to the plastic attachment in the preliminary cleaning method is propelled, and meanwhile, the rotary driving part is used for rotating to enable the grapple to grab the plastic attachment. As preferredly like this through rotatory driving piece can drive elasticity mediation piece at the heating pipe internal rotation, the cooperation makes elasticity mediation piece advance or withdraw from at the heating pipe internal rotation for elasticity mediation piece propulsion power, the grapple is located the prior and plastics attachment contact of front end of elasticity mediation piece, make the grapple possess very big probability hook and grasp the plastics attachment through rotatory and propulsion, further the cooperation is rotatory can effectively guarantee plastics attachment and heating pipe inner wall and break away from after snatching, and then effectively clear up the heating pipe.
Furthermore, in the preliminary cleaning method, two elastic dredging parts are adopted to simultaneously grab and clean plastic attachments from two ends of the heating pipe. Preferably, the two ends are cleaned simultaneously, for a heating pipe bent by 90 degrees, the plastic attachments can be more efficiently cleaned by cleaning the two ends simultaneously, more importantly, the plastic attachments closer to the bent part can be prevented from being clamped by extrusion, the plastic attachments at the bent part can be further effectively cleaned and discharged, the scratches of the inner wall of the heating pipe at the bent part caused by the grapple can be reduced, and the vicious circle of plastic deposition caused by secondary scratches is avoided.
Furthermore, the elastic dredging part adopts a spring, and the grapple is formed by axially extending and bending a spring monofilament at one end of the spring from the middle part of the spring. The spring possesses excellent elasticity as preferred spring to the surface is slick and sly, and the activity can not lead to the fact the damage to the heating pipe inner wall in the heating pipe, has the space between the adjacent number of turns, and the continuous flexible change in space can further press from both sides the adnexed plastics attachment clamp of heating pipe inner wall and clear away in rotatory and propulsion process, and the grapple adopts spring integrated into one piece's structure, possesses certain elasticity when the grapple possesses sufficient intensity, can snatch the plastics attachment more effectively.
Further, the diameter of the spring is 2mm smaller than the inner diameter of the heating pipe. Preferably, the size proportion enables the spring to be in contact with and grab the plastic attachments attached to the inner wall in the heating pipe more fully, enough moving space is kept to avoid the spring from being clamped in the heating pipe, and the spring can also keep certain strength to be capable of stably and effectively deeply penetrating into the heating pipe to effectively clean the plastic attachments at the bent part.
Furthermore, a dredging rod with the diameter being 0.2mm smaller than the inner diameter of the heating pipe is adopted in the secondary cleaning method. The size proportion is preferably adopted, after most of plastic attachments are cleaned and removed for the first time, residual small amount of plastic sediments attached to the inner wall of the heating pipe can be effectively scraped and removed through the dredging rod, enough space is provided between the dredging rod and the inner wall of the heating pipe to guarantee the movement of the dredging rod, the dredging rod can be guaranteed to effectively scrape the plastic sediments, the plastic sediments are gradually accumulated by pushing after being heated and heated, and the plastic sediments can be thoroughly removed under the influence of the viscosity of the dredging rod in the pushing process.
Further, the dredging rod adopted in the secondary cleaning method is a nylon rod. The optimized nylon rod has certain strength, good wear resistance, plasticity and bending strength, can effectively penetrate into a 90-degree bending part of the heating pipe, has good wear resistance, cannot cause abrasion and scratch to the inner wall of the heating pipe, effectively removes residual plastic attachments, and avoids causing secondary damage of the heating pipe to form vicious circle of plastic deposition.
Further, the temperature in the heated state is 90 to 130 ℃. Preferably, in the temperature range, the plastic attachment is heated to a certain degree, shows a certain plasticity and can be effectively drawn, can be smoothly separated from the inner wall of the heating tube, and is convenient to clear, so that the plastic attachment which is not melted yet has a relatively complete shape and can be effectively grabbed.
Furthermore, the rotary driving part comprises a rocking handle connected with one end of the spring without the grapple, a handle is sleeved on the rocking handle, the handle and the rocking handle are held by hands in the grabbing process, and the rocking handle is rocked to enable the spring and the grapple to rotate to grab the plastic attachment. The rotary driving piece is preferably adopted, the structure is simple and easy to operate, manual operation is convenient for timely sensing the grabbing condition of the spring to the plastic attachment in the heating pipe, and then the grabbing plastic attachment is convenient to control to pull out.
Further, the length of the spring is 600mm, and the length of the spring monofilament forming the grapple is 5 mm. The spring length applicability is stronger as the optimization, the cleaning of the heating pipe is more comprehensive and thorough, and the length of the grapple can grab the plastic attachment more effectively.
Drawings
Fig. 1 is a side view of an elastic pull-through in an embodiment of the invention.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: spring 1, grapple 2, handle 3, rocking handle 4.
The embodiment provides a cleaning method of a heating pipe of a wire extruder, which comprises a primary cleaning method and a secondary cleaning method:
the preliminary cleaning method comprises the steps that two elastic dredging parts are adopted to simultaneously stretch into the heating pipe from two ends of the heating pipe to grab plastic attachments and then pull out the plastic attachments under the heating state with the temperature of 90-130 ℃, as shown in figure 1, the elastic dredging parts adopt springs 1, the length of the springs 1 is 600mm, the diameter of the springs 1 is 2mm smaller than the inner diameter of the heating pipe, one ends of the springs 1 are provided with grabbing hooks 2, the other ends of the springs are connected with rotary driving parts, the grabbing hooks 2 are formed by extending monofilaments of the springs 1 at one ends of the springs 1 from the middle parts of the springs 1 along the axial direction for 5mm bending, the grabbing modes of the springs 1 for the plastic attachments comprise that the grabbing hooks 2 grab the plastic attachments by driving parts to rotate when the springs are pushed inwards, and the gaps of the springs; the rotary driving piece comprises a rocking handle 4 connected with one end of the spring 1 without the grapple 2, a handle 3 is sleeved on the rocking handle 4, the handle 3 and the rocking handle 4 are held by hands in the grabbing process, and the rocking handle 4 is rocked to enable the spring 1 and the grapple 2 to rotationally grab the plastic attachments;
the secondary cleaning method is that after the primary cleaning, a flexible dredging rod is inserted into the heating pipe to scrape off the residual attachments on the inner wall of the heating pipe, and the dredging rod is a nylon rod with the diameter being 0.2mm smaller than the inner diameter of the heating pipe and is inserted into the heating pipe from top to bottom in a one-way mode.
The embodiment also provides an elasticity mediation piece for clearance of electric wire extruder heating pipe, including spring 1, the monofilament of spring 1 one end stretches out the crotch 2 of making along the axial from the middle part, and spring 1 other end hot melt is connected with the rotary driving piece. The rotary driving piece comprises a Z-shaped rocking handle 4, and a cylindrical handle 3 is sleeved at one end of the rocking handle 4 connected with the spring 1.
The technical scheme of the embodiment is adopted to clean the heating pipe of the electric wire extruder, the spring 1 with the grabbing hook 2 at the end part is firstly used for rotating and pushing the heating pipe into the heating pipe, the grabbing hook 2 is hooked with the plastic attachments in the heating pipe in the rotating and pushing processes, part of the plastic attachments on the inner wall of the heating pipe are inserted into the gap between the adjacent rings of the spring 1, the grabbing hook 2 hooks the plastic attachments which are softened by heating and wraps and gathers the plastic attachments in the rotating and pushing processes of the spring 1 in the heating state, the adjacent rings of the spring 1 wrap and hold the plastic attachments inserted into the adjacent rings along the spiral outline in the rotating process, the two springs 1 are respectively cleaned from two ends of the heating pipe bent at 90 degrees, most of the plastic attachments can be effectively wrapped and pulled out of the heating pipe without scratching the inner wall of the heating pipe, and then the heating pipe is cleaned by the spring 1 with good wear resistance, The nylon rod with the strength and the bending performance adopts a small clearance fit size of 0.2mm, is unidirectionally inserted into a heating pipe bent by 90 degrees, pushes and discharges plastic sediments remained on the inner wall of the heating pipe, which are softened by heating, and can be well strengthened and bent at one time in the pushing and extruding process to effectively push and discharge the residual plastic sediments and effectively avoid scratching the inner wall of the heating pipe due to good wear resistance. Therefore, according to the technical scheme, deposited plastic attachments can be effectively and thoroughly removed by cleaning the 90-degree bent heating pipe flow channel of the electric wire extruder, the heating pipe does not need to be disassembled in the cleaning process, the used tool is convenient and fast to operate, the inner wall of the heating pipe cannot be scratched in the cleaning process, and vicious circle formed by increasing plastic deposition in the subsequent use process due to damage caused by cleaning is effectively avoided.
The foregoing is merely an example of the present invention and common general knowledge in the art of specific structures and/or features of the invention has not been set forth herein in any way. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (10)
1. A cleaning method of a heating pipe of an electric wire extruder is characterized by comprising the following steps: the method comprises a primary cleaning method and a secondary cleaning method, wherein the primary cleaning method is to stretch an elastic dredging piece into a heating pipe to grab plastic attachments and pull out the plastic attachments in a heating state, and the secondary cleaning method is to insert a flexible dredging rod into the heating pipe to scrape the residual attachments on the inner wall of the heating pipe after primary cleaning.
2. The method for cleaning a heating pipe of a wire extruder according to claim 1, wherein: and one end of the elastic dredging part is provided with a grapple, the other end of the elastic dredging part is connected with a rotary driving part, and the plastic attachment is grabbed by the elastic dredging part in the preliminary cleaning method in a propelling manner and simultaneously the rotary driving part is used for rotating to enable the grapple to grab the plastic attachment.
3. The method for cleaning a heating pipe of a wire extruder according to claim 2, wherein: in the preliminary cleaning method, two elastic dredging parts are adopted to simultaneously grab and clean plastic attachments from two ends of a heating pipe.
4. The method for cleaning a heating tube of a wire extruder according to claim 3, wherein: the elastic dredging piece is made of a spring, and the grabbing hook is formed by axially extending and bending a spring monofilament at one end of the spring from the middle of the spring.
5. The method for cleaning a heating pipe of a wire extruder according to claim 4, wherein: the diameter of the spring is 2mm smaller than the inner diameter of the heating pipe.
6. The method for cleaning a heating tube of a wire extruder according to claim 5, wherein: in the secondary cleaning method, a dredging rod with the diameter being 0.2mm smaller than the inner diameter of the heating pipe is adopted.
7. The method for cleaning a heating tube of a wire extruder according to claim 6, wherein: the dredging rod adopted in the secondary cleaning method is a nylon rod.
8. The method for cleaning a heating tube of a wire extruder according to claim 7, wherein: the temperature of the heating state is 90-130 ℃.
9. The method for cleaning a heating tube of a wire extruder according to claim 8, wherein: the rotary driving piece comprises a rocking handle connected with one end of the spring without the grapple, a handle is sleeved on the rocking handle, the handle and the rocking handle are held by hands in the grabbing process, and the rocking handle is rocked to enable the spring and the grapple to rotationally grab the plastic attachment.
10. The method for cleaning a heating tube of a wire extruder according to claim 9, wherein: the length of the spring is 600mm, and the length of the spring monofilament forming the grapple is 5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110355152.3A CN113043572A (en) | 2021-03-31 | 2021-03-31 | Cleaning method for heating pipe of wire extruder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110355152.3A CN113043572A (en) | 2021-03-31 | 2021-03-31 | Cleaning method for heating pipe of wire extruder |
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| CN113043572A true CN113043572A (en) | 2021-06-29 |
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| CN202110355152.3A Pending CN113043572A (en) | 2021-03-31 | 2021-03-31 | Cleaning method for heating pipe of wire extruder |
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