CN109570249B - Refrigerator steel pipe drawing device - Google Patents
Refrigerator steel pipe drawing device Download PDFInfo
- Publication number
- CN109570249B CN109570249B CN201811260348.9A CN201811260348A CN109570249B CN 109570249 B CN109570249 B CN 109570249B CN 201811260348 A CN201811260348 A CN 201811260348A CN 109570249 B CN109570249 B CN 109570249B
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- China
- Prior art keywords
- die
- steel pipe
- sleeve
- necking
- shell
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
- B21C1/22—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes specially adapted for making tubular articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
- B08B3/022—Cleaning travelling work
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
- B21C1/27—Carriages; Drives
- B21C1/28—Carriages; Connections of grippers thereto; Grippers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
- B21C1/32—Feeding or discharging the material or mandrels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C3/00—Profiling tools for metal drawing; Combinations of dies and mandrels
- B21C3/02—Dies; Selection of material therefor; Cleaning thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C9/00—Cooling, heating or lubricating drawing material
Abstract
The invention discloses a refrigerator steel pipe drawing device which comprises a shell, a die sleeve and a drawing die, wherein the die sleeve is embedded in the shell in a matching mode, the front end of the die sleeve is exposed out of the shell, the drawing die is embedded in a drawing die cavity in the die sleeve in a matching mode and fixed, a tapered die hole is formed in the drawing die, a drawing clamp corresponding to the port of the drawing die cavity is arranged in front of the shell, a lubricating cleaning liquid pipe is connected to the shell, water-based lubricating cleaning liquid is communicated into the lubricating cleaning liquid pipe, the lubricating cleaning liquid pipe is communicated into the drawing die cavity, and a cleaning spray port is formed in the lubricating cleaning liquid pipe outside the port of the drawing die cavity in the front end of the die sleeve. The invention can improve the convenience of cleaning the steel pipe after drawing, reduce pollution and improve the feeding efficiency of the steel pipe drawing operation.
Description
Technical Field
The invention relates to a refrigerator accessory processing device, in particular to a refrigerator steel pipe drawing device.
Background
The steel pipe for the refrigerator is a multi-specification steel pipe which is made by drawing a seam steel pipe formed by high-frequency extrusion welding of ultra-low carbon high-quality carbon steel. The automatic degree of a feeding part of the existing refrigerator steel pipe drawing device is low, a steel pipe to be drawn cannot be directly input, the steel pipe to be drawn needs to be reduced outside the steel pipe drawing device, the diameter of the foremost end of the steel pipe to be drawn is reduced so as to pass through a drawing die, and a pipe head penetrating through the drawing die is clamped and fixed by a drawing clamp so as to start steel pipe drawing. And the existing refrigerator steel pipe drawing device mostly adopts an oil drawing working mode, namely, drawing oil is used for lubricating the steel pipe and a drawing die in the drawing process, so that a large amount of oil stains exist on the surface of the drawn steel pipe, the waste oil is difficult to treat, a large amount of metal powder generated by drawing is adhered, great difficulty is brought to a subsequent cleaning process, a large amount of waste water is generated for cleaning the waste oil and waste residues, the problem of secondary pollution is caused, and the emission treatment cost is further increased. The utility model with the publication number of CN207857549U specially facilitates 2018, 9 and 14, discloses a steel pipe double-drawing lubricating device, which comprises a die body, wherein a steel pipe is arranged on the die body, and a drawing die I and a drawing die II are arranged on the steel pipe; a lubricating area of the drawing die I is arranged on the drawing die I, and a lubricating area of the drawing die II is arranged on the drawing die II; a separation plate is arranged between the two drawing dies; the separation plate is provided with an oil hole, and the oil hole is provided with an oil way. The invention has the beneficial effects that when the steel pipe is drawn, the lubricating areas of the drawing die I and the drawing die II are fully lubricated by using the oil holes of the isolation plate; the two end surfaces of the isolation plate are parallel, so that the two drawing dies are on the same straight line when the steel pipe is drawn; the oil hole is formed in the isolation plate, so that lubricating oil smoothly flows to the lubricating area of the drawing die II from the lubricating area of the drawing die I, and the two drawing dies are fully lubricated. However, the invention does not relate to how to improve the feeding efficiency, and the device adopts an oil lubrication mode, so that various inherent defects of the oil lubrication mode exist.
Disclosure of Invention
The automatic degree of the feeding part of the existing refrigerator steel pipe drawing device is low, the oil drawing working mode is adopted, the production efficiency is influenced, the problems of difficulty in cleaning and pollution increase are caused, and in order to overcome the defects, the invention provides the refrigerator steel pipe drawing device which can improve the steel pipe drawing feeding efficiency, is convenient to clean and reduces pollution.
The technical scheme of the invention is as follows: the utility model provides a refrigerator steel pipe drawing device, which comprises an outer shell, die sleeve and drawing die, the die sleeve adaptation is inlayed in the shell and the front end exposes outside the shell, drawing die adaptation is inlayed in drawing die cavity in the die sleeve and is fixed, be equipped with the die hole of taking the tapering on the drawing die, be equipped with the anchor clamps of drawing that correspond with drawing die cavity port before the shell, even have lubricated cleaning solution pipe on the shell, it has the lubricated washing liquid of waterborne to lead to in the lubricated cleaning solution pipe, lubricated cleaning solution pipe communicates to in drawing the die cavity, lubricated cleaning solution pipe is equipped with the washing outside the drawing die cavity port of die sleeve front end and sprays the mouth. The water-based lubricating cleaning solution adopted by the invention has lubricating and cleaning functions in the drawing process, on one hand, the steel pipe before drawing is sprayed and lubricated, on the other hand, the steel pipe after drawing is sprayed, cleaned and cooled, so that the steel pipe is lubricated by a liquid film in a drawing die, and the surface of the steel pipe after drawing is cleaned in time. Because the lubrication before drawing and the cleaning after drawing are both water-based lubrication cleaning liquid, the problem of oil-water incompatibility in an oily drawing mode can be avoided. Therefore, the water-based lubricating cleaning solution can ensure normal lubrication and cooling in the drawing process, and the cleaning convenience and the cleaning effect after drawing are far superior to those of oil drawing.
Preferably, the refrigerator steel pipe drawing device further comprises a pre-necking die and a pipe feeding and die penetrating mechanism, wherein the pre-necking die is positioned behind the shell, the pipe feeding and die penetrating mechanism is positioned behind the pre-necking die, the pre-necking die is connected to a piston rod of a pre-necking die oil cylinder, the pre-necking die oil cylinder is fixed on a pre-necking die sliding table, and a steel pipe positioning clamp positioned between the pre-necking die and the pipe feeding and die penetrating mechanism is further arranged on the pre-necking die sliding table. The steel pipe before drawing is firstly subjected to necking processing at a pre-necking die, so that the pipe diameter of the front end of the steel pipe is reduced to a value capable of penetrating into a die hole on a drawing die, then the steel pipe is axially fed under the driving of a pipe conveying and die penetrating mechanism, the steel pipe passing through the necking penetrates through the drawing die, the end of the steel pipe is exposed out of the port of the drawing die cavity, then the steel pipe is clamped by a drawing clamp, and then continuous drawing processing can be carried out. The pre-necking die sliding table can move, and when steel pipe necking is carried out, the pre-necking die moves along with the pre-necking die sliding table and is aligned with the port of the steel pipe. After the necking processing is finished, the pre-necking die sliding table carries the pre-necking die oil cylinder and the pre-necking die to move aside, and a steel pipe advancing channel is left. This refrigerator steel pipe drawing device has integrated the throat function for treat that to draw the steel pipe and can directly feed and need not to carry out the preprocessing outside the on-line, consequently can improve the steel pipe and draw feed efficiency.
Preferably, the pipe conveying and die penetrating mechanism comprises steel pipe pushing wheels which are arranged in pairs, each pair of steel pipe pushing wheels are respectively positioned at two sides of the steel pipe to be drawn and roll oppositely, and wheel grooves matched with the circumferential surface of the steel pipe to be drawn are formed in wheel surfaces of the steel pipe pushing wheels. The paired steel pipe pushing wheels clamp the steel pipe to be drawn and roll oppositely, the steel pipe to be drawn can be pushed to move axially through friction, and the steel pipe pushing function of the pipe conveying and die penetrating mechanism is achieved.
Preferably, the refrigerator steel pipe drawing device further comprises a clutch guide sleeve, the clutch guide sleeve is located at the rear end opening of the die sleeve and comprises a pair of openable half taper sleeves, each half taper sleeve is correspondingly connected with a guide sleeve clutch oil cylinder, and the guide sleeve clutch oil cylinders are fixed on the shell. The steel pipe after necking still has certain distance apart from the die hole on the drawing die, receives the influence of steel pipe hardness, tub pipe threading mechanism motion accuracy and tremble degree, and the steel pipe after necking probably is to the die hole on the inaccurate drawing die when axial feed. The clutch guide sleeve is a conical sleeve formed by splicing two half conical sleeves, and the inner conical surface of the conical sleeve can guide the steel pipe after necking to be accurately inserted into a die hole on the drawing die and then penetrate out of the drawing die to be clamped by the drawing clamp.
Preferably, the aqueous lubricating cleaning fluid in the lubricating cleaning fluid tube is soapy water. The lubricating property of the soapy water is superior to that of common water, and the soapy water has alkalinity and can generate a certain rust prevention effect on the surface of the steel pipe, so that the product can not rust in the sequence conversion period.
Preferably, the shell is arranged in a water tank, a water scraping leather support is fixedly arranged on the water tank, a water scraping leather is fixedly arranged on the water scraping leather support, and the water scraping leather is sleeved on the drawn steel pipe. The water scraping skin is used for scraping and cleaning redundant water sprayed to the surface of the steel pipe from the spraying port, so that the surface of the steel pipe is rapidly dried under the heating of self heat.
Preferably, the die sleeve is rotatably connected in the shell, the exposed end of the die sleeve is keyed with a chain wheel, and the chain wheel is connected with a motor through a chain transmission mechanism. The motor drives the chain wheel to rotate, and then drives the die sleeve and the drawing die to rotate relative to the shell, so that relative motion exists between the surface of the steel pipe and the drawing die in the axial direction and the circumferential direction in the drawing process of the steel pipe, the surface finish degree of the steel pipe after being drawn is improved, and the steel pipe is prevented from being drawn to generate scratches.
Preferably, the die sleeve is provided with a liquid inlet slot hole penetrating to the drawing die cavity, and the inner wall of the die sleeve is provided with an axial liquid discharge groove. The water-based lubricating cleaning liquid in the lubricating cleaning liquid pipe enters the drawing die cavity through the liquid inlet slotted hole and is poured on the steel pipe before drawing, and the axial liquid discharge groove can discharge the drained water-based lubricating cleaning liquid.
The invention has the beneficial effects that:
the cleaning convenience of the drawn steel tube is improved, and the pollution is reduced. The aqueous lubricating cleaning solution adopted by the invention has better fluidity, and iron powder generated in the drawing process is easy to flow and discharge along with the aqueous lubricating cleaning solution, so that the drawing liquid is kept clean all the time, and the lubrication before drawing and the cleaning after drawing both use the aqueous lubricating cleaning solution, so that the problem of oil-water incompatibility in an oily drawing mode can be avoided, the cleaning is more convenient, the cleaning effect is better, and the discharged waste is less.
The feeding efficiency of the steel pipe drawing operation is improved. The invention integrates the necking function, so that the steel pipe to be drawn can be directly fed without being preprocessed outside the wire, and the steel pipe drawing feeding efficiency can be improved.
Drawings
FIG. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of the fitting structure of the housing, the die case and the drawing die of the present invention;
FIG. 3 is a top view of the pre-necking die and the tube threading mechanism of the present invention.
In the figure, 1-shell, 2-die sleeve, 3-drawing die, 4-die hole, 5-drawing die cavity, 6-lubricating cleaning liquid pipe, 7-cleaning spray hole, 8-pre-reducing die, 9-pre-reducing die oil cylinder, 10-steel pipe pushing wheel, 11-clutch guide sleeve, 12-guide sleeve clutch oil cylinder, 13-chain wheel, 14-liquid inlet slot hole, 15-axial liquid discharge groove, 16-water scraping skin, 17-water groove, 18-water scraping skin bracket, 19-machine frame, 20-lubricating pouring pipeline, 21-steel pipe, 22-pre-reducing die sliding table, 23-steel pipe positioning clamp, 24-pre-reducing die sliding table transverse moving air cylinder, 25-clamp oil cylinder, 26-moving clamp, 27-pushing wheel motor, 28-pushing wheel sliding table, 29-push wheel sliding table oil cylinder.
Detailed Description
The invention is further illustrated by the following specific embodiments in conjunction with the accompanying drawings.
Example 1:
as shown in fig. 1, 2 and 3, a refrigerator steel pipe drawing device is arranged on a rack 19, and comprises a shell 1, a die sleeve 2, a drawing die 3 and a PLC control system, wherein the die sleeve 2 is embedded in the shell 1 in a matching manner, the front end of the die sleeve is exposed out of the shell 1, the drawing die 3 is embedded in a drawing die cavity 5 in the die sleeve 2 in a matching manner and is fixed, a tapered die hole 4 is formed in the drawing die 3, a drawing clamp corresponding to the port of the drawing die cavity 5 is arranged in front of the shell 1, a lubricating cleaning liquid pipe 6 is connected to the shell 1, a water-based lubricating cleaning liquid is introduced into the lubricating cleaning liquid pipe 6, the water-based lubricating cleaning liquid in the lubricating cleaning liquid pipe 6 is soap water, and the mass ratio of the soap to the water in the soap water is 0.02: 1. the lubricating and cleaning liquid pipe 6 is communicated to the drawing die cavity 5 through a lubricating and sprinkling pipeline 20, a cleaning and sprinkling port 7 is arranged outside the port of the drawing die cavity 5 at the front end of the die sleeve 2 of the lubricating and cleaning liquid pipe 6, and an electromagnetic valve connected into a PLC control system is arranged in the lubricating and sprinkling pipeline 20 and the cleaning and sprinkling port 7. The refrigerator steel pipe drawing device further comprises a pre-necking die 8 and a pipe feeding and die penetrating mechanism, wherein the pre-necking die 8 is positioned behind the shell 1, and the pipe feeding and die penetrating mechanism is positioned behind the pre-necking die 8. The pre-necking die 8 is provided with a necking die cavity which can reduce the pipe diameter of the steel pipe, the pre-necking die 8 is connected on a piston rod of a pre-necking die oil cylinder 9, the pre-necking die oil cylinder 9 is fixed on a pre-necking die sliding table 22, the pre-necking die oil cylinder 9 is parallel to the feeding direction of the steel pipe, and the pre-necking die sliding table 22 is also provided with a steel pipe positioning clamp 23 positioned between the pre-necking die 8 and a pipe feeding and die penetrating mechanism. The pre-necking die sliding table 22 is connected to a pre-necking die sliding table transverse sliding rail at the top of the rack 19 in a sliding mode, the pre-necking die sliding table 22 is connected with a piston rod of a pre-necking die sliding table transverse sliding cylinder 24, and the pre-necking die sliding table transverse sliding cylinder 24 is fixed at the top of the rack 19. The steel pipe positioning fixture 23 comprises a pair of fixture oil cylinders 25 and a pair of movable chucks 26, the two movable chucks 26 are opposite in position and can be closed and separated, pipe grooves matched with the steel pipes to be drawn are formed in opposite surfaces of the two movable chucks 26, the fixture oil cylinders 25 are fixed on the pre-necking die sliding table 22, and the movable chucks 26 are connected to the fixture oil cylinders 25 in a one-to-one correspondence mode. The stroke of the clamp oil cylinder 25 is larger than that of the pre-necking die sliding table transverse moving air cylinder 24. The pipe feeding and die penetrating mechanism comprises two pairs of steel pipe pushing wheels 10, each pair of two steel pipe pushing wheels 10 in the steel pipe pushing wheels 10 are respectively arranged on two sides of a steel pipe to be drawn and are rolled oppositely, wheel shafts are parallel, four steel pipe pushing wheels 10 are connected with four pushing wheel motors 27 in a one-to-one correspondence mode, the centers of the steel pipe pushing wheels 10 are connected with output shaft keys of the pushing wheel motors 27, the four pushing wheel motors 27 are respectively fixed on two pushing wheel sliding tables 28, the pushing wheel sliding tables 28 are connected on pushing wheel sliding table sliding rails at the top of the rack 19 in a sliding mode, and each pushing wheel sliding table 28 is connected with one pushing wheel sliding table oil cylinder 29 respectively. The wheel surface of the steel pipe pushing wheel 10 is provided with a wheel groove matched with the circumferential surface of the steel pipe to be drawn. This refrigerator steel pipe drawing device still includes separation and reunion guide pin bushing 11, and separation and reunion guide pin bushing 11 is located die sleeve 2 rear end department, the low reaches of necking in advance mouth mould 8. The clutch guide sleeve 11 comprises a pair of openable half taper sleeves, and the closed clutch guide sleeve 11 is coaxial with the drawing die 3. Each half taper sleeve is correspondingly connected with a guide sleeve clutch cylinder 12, the guide sleeve clutch cylinders 12 are fixed on the shell 1, and piston rods of the guide sleeve clutch cylinders 12 penetrate through the shell 1 in the radial direction. The shell 1 is arranged in a water tank 17, the water tank 17 is fixed on a frame 19, and the front end and the rear end of the water tank 17 are provided with gaps through which steel pipes or drawing clamps can pass. A water scraping leather support 18 is fixedly arranged on the water tank 17, a water scraping leather 16 is fixedly arranged on the water scraping leather support 18, and the water scraping leather 16 is sleeved on the drawn steel pipe in an interference manner. The die sleeve 2 is rotatably connected in the shell 1, the exposed end key of the die sleeve 2 is connected with a chain wheel 13, and the chain wheel 13 is connected with a motor through a chain transmission mechanism. The die sleeve 2 is provided with a liquid inlet slot hole 14 penetrating to the drawing die cavity 5, and the inner wall of the die sleeve 2 is provided with an axial liquid discharge groove 15. Solenoid valve, necking die hydro-cylinder 9 in advance, necking die slip table sideslip cylinder 24, anchor clamps hydro-cylinder 25, propelling movement wheel motor 27, propelling movement wheel slip table hydro-cylinder 29, uide bushing clutch cylinder 12 all insert PLC control system, it still has connect the steel pipe throat sensor of whether detection steel pipe reachs necking die department in advance among the PLC control system, detect necking die hydro-cylinder position sensor in advance of necking die hydro-cylinder 9 telescopic state, detect the slip table hydro-cylinder position sensor of slip table hydro-cylinder telescopic state, detect uide bushing clutch cylinder 12 position sensor of uide bushing clutch cylinder 12 telescopic state, whether detect behind the throat steel pipe pass the die drawing 3 and scrape the tube head sensor of taking one's place that water skin 16 exposes before scraping water skin 16.
When the refrigerator steel pipe drawing device is used for drawing a refrigerator steel pipe, a steel pipe 21 to be drawn is placed in a pipe running channel on a rack, after the device is started, under the control of a PLC control system, two steel pipe pushing wheels 10 in each pair of steel pipe pushing wheels 10 are drawn close to clamp the steel pipe to be drawn and axially push the steel pipe, after the steel pipe reaches a pre-necking die and is detected by a steel pipe necking locating sensor, the PLC control system controls the steel pipe pushing wheels 10 to stop rotating, a piston rod of a pre-necking die sliding table transverse moving cylinder 24 extends out to push a pre-necking die sliding table 22, the pre-necking die moves along with the pre-necking die sliding table 22, after the pre-necking die sliding table 22 moves in place, a pre-necking die 8 is aligned with the port of the steel pipe 21 before drawing, the steel pipe 21 is located in the middle of two moving chucks 26 in a separated state, then a clamp oil cylinder 25 is started to enable the two moving chucks 26, the pre-necking die 8 is pushed to axially extend, the front end of the steel pipe 21 before drawing is extruded and necked down, the pipe diameter of the front end of the steel pipe is reduced to a value which can penetrate through a die hole on a drawing die, the clutch cylinder 12 of the guide sleeve drives the clutch guide sleeve 11 to fold into a cone shape at the moment, the pre-necking die 8 extends and retracts after one second, then the clamp cylinder 25 retracts, the two movable chucks 26 are separated, the pre-necking die sliding table 22 carries the pre-necking die cylinder 9, the pre-necking die 8 and the steel pipe positioning clamp 23 to translate and reset to one side, and a steel pipe 21 advancing channel is given way. Then the steel pipe 21 continues to axially feed under the driving of the steel pipe pushing wheel 10, the steel pipe passing through the necking is aligned with the die hole 4 under the guiding action of the clutch guide sleeve 11 and passes through the drawing die 3, the end of the steel pipe is exposed out of the wiping leather 16 and is detected by the pipe head in-place sensor, the PLC control system controls the drawing clamp to start to clamp the pipe head, meanwhile, the electromagnetic valve in the lubricating and sprinkling pipeline 20 is conducted, the water-based lubricating and cleaning liquid is guided into the drawing die cavity 5, and the steel pipe before being drawn is sprinkled and lubricated. After the continuous drawing process is carried out, after the drawing process is started, the steel pipe 21 is lubricated by a liquid film in the drawing die 3, the electromagnetic valve for cleaning the spraying opening 7 is also conducted, and the water-based lubricating cleaning solution flows out from the cleaning spraying opening 7 to spray the drawn steel pipe, so that the surface of the drawn steel pipe is cleaned and cooled in time.
Example 2:
the steel pipe pushing wheels 10 are three pairs. The rest is the same as example 1.
Example 3:
the steel pipe pushing wheels 10 are four pairs. The rest is the same as example 1.
Claims (7)
1. A refrigerator steel pipe drawing device comprises a shell (1), a die sleeve (2) and a drawing die (3), wherein the die sleeve (2) is embedded in the shell (1) in a matching manner, the front end of the die sleeve is exposed out of the shell (1), the drawing die (3) is embedded in a drawing die cavity (5) in the die sleeve (2) in a matching manner and fixed, a die hole (4) with taper is formed in the drawing die (3), a drawing clamp corresponding to the port of the drawing die cavity (5) is arranged in front of the shell (1), and the refrigerator steel pipe drawing device is characterized in that a lubricating cleaning liquid pipe (6) is connected to the shell (1), a water-based lubricating cleaning liquid is communicated to the lubricating cleaning liquid pipe (6), the lubricating cleaning liquid pipe (6) is communicated to the drawing die cavity (5), a cleaning spraying port (7) is formed in the lubricating cleaning liquid pipe (6) outside the port of the drawing die cavity (5) at the front end of the die sleeve (2), the refrigerator steel pipe drawing device further comprises a pre-shrinking die, the pre-necking die (8) is positioned behind the shell (1), the pipe feeding and die penetrating mechanism is positioned behind the pre-necking die (8), the pre-necking die (8) is connected to a piston rod of a pre-necking die oil cylinder (9), the pre-necking die oil cylinder (9) is fixed on a pre-necking die sliding table, and a steel pipe positioning clamp positioned between the pre-necking die (8) and the pipe feeding and die penetrating mechanism is further arranged on the pre-necking die sliding table.
2. The refrigerator steel pipe drawing device as claimed in claim 1, wherein the pipe feeding and die penetrating mechanism comprises steel pipe pushing wheels (10) arranged in pairs, each pair of steel pipe pushing wheels (10) is respectively arranged at two sides of the steel pipe to be drawn and rolls, and wheel grooves matched with the circumferential surface of the steel pipe to be drawn are formed in wheel surfaces of the steel pipe pushing wheels (10).
3. The steel pipe drawing device for the refrigerator as claimed in claim 1, further comprising a clutch guide sleeve (11), wherein the clutch guide sleeve (11) is located at the rear port of the die sleeve (2), the clutch guide sleeve (11) comprises a pair of half cone sleeves which can be opened and closed, each half cone sleeve is correspondingly connected with a guide sleeve clutch cylinder (12), and the guide sleeve clutch cylinder (12) is fixed on the housing (1).
4. The steel pipe drawing device for refrigerators as claimed in claim 1, wherein the water-based lubricating and cleaning liquid in the lubricating and cleaning liquid pipe (6) is soapy water.
5. The steel pipe drawing device of the refrigerator as claimed in claim 1, wherein the housing (1) is arranged in a water tank, a wiper blade bracket is fixedly arranged on the water tank, a wiper blade (16) is fixedly arranged on the wiper blade bracket, and the wiper blade (16) is sleeved on the drawn steel pipe.
6. The refrigerator steel pipe drawing device as claimed in claim 1, 2, 3, 4 or 5, wherein the die sleeve (2) is rotatably connected in the shell (1), the exposed end of the die sleeve (2) is keyed with a chain wheel (13), and the chain wheel (13) is connected with a motor through a chain transmission mechanism.
7. The steel pipe drawing device for the refrigerator as claimed in claim 1, 2, 3, 4 or 5, wherein the die sleeve (2) is provided with a liquid inlet slot hole (14) penetrating to the drawing die cavity (5), and the inner wall of the die sleeve (2) is provided with an axial liquid discharge groove (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811260348.9A CN109570249B (en) | 2018-10-26 | 2018-10-26 | Refrigerator steel pipe drawing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811260348.9A CN109570249B (en) | 2018-10-26 | 2018-10-26 | Refrigerator steel pipe drawing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109570249A CN109570249A (en) | 2019-04-05 |
| CN109570249B true CN109570249B (en) | 2020-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811260348.9A Active CN109570249B (en) | 2018-10-26 | 2018-10-26 | Refrigerator steel pipe drawing device |
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| CN (1) | CN109570249B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110899351B (en) * | 2019-12-02 | 2021-04-27 | 浙江天阳钢管有限公司 | Drawing driving mechanism in seamless steel tube drawing machine |
| CN114226576A (en) * | 2021-12-20 | 2022-03-25 | 江苏康盛管业有限公司 | Copper pipe flaring device for air conditioner |
| CN116237382B (en) * | 2022-11-25 | 2024-03-22 | 张家港保税区恒隆钢管有限公司 | Cold drawing machine for producing seamless steel tube |
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| CN103203381A (en) * | 2013-03-29 | 2013-07-17 | 苏州奥智机电设备有限公司 | Drawing die |
| CN104293456A (en) * | 2014-08-29 | 2015-01-21 | 安徽乐达精密合金有限公司 | Molybdenum disulfide-added stainless steel wire drawing liquid with good lubricity and preparation method thereof |
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2018
- 2018-10-26 CN CN201811260348.9A patent/CN109570249B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004283864A (en) * | 2003-03-20 | 2004-10-14 | Fuji Xerox Co Ltd | Drawing machine, tube, and base body for electrophotographic photoreceptor |
| CN2637016Y (en) * | 2003-08-01 | 2004-09-01 | 王玉廷 | Complete set equipment for making imitation seamless pipe |
| CN202861021U (en) * | 2012-10-23 | 2013-04-10 | 河北翼辰实业集团有限公司 | Round steel diameter-reducing device for bolt |
| CN103203381A (en) * | 2013-03-29 | 2013-07-17 | 苏州奥智机电设备有限公司 | Drawing die |
| CN104293456A (en) * | 2014-08-29 | 2015-01-21 | 安徽乐达精密合金有限公司 | Molybdenum disulfide-added stainless steel wire drawing liquid with good lubricity and preparation method thereof |
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Denomination of invention: A refrigerator steel pipe drawing device Effective date of registration: 20221210 Granted publication date: 20200616 Pledgee: Jiangsu Suining Rural Commercial Bank Co.,Ltd. Pledgor: JIANGSU KANGSHENG PIPE INDUSTRY Co.,Ltd. Registration number: Y2022980026510 |
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