CN219151180U - Cold drawing machine - Google Patents
Cold drawing machine Download PDFInfo
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- CN219151180U CN219151180U CN202223147026.8U CN202223147026U CN219151180U CN 219151180 U CN219151180 U CN 219151180U CN 202223147026 U CN202223147026 U CN 202223147026U CN 219151180 U CN219151180 U CN 219151180U
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- cold drawing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model discloses a cold drawing machine which comprises a feeding component, a drawing die holder, a cold drawing driving component and a steel pipe supporting bracket, wherein the drawing die holder is provided with a drawing die, the feeding component and the cold drawing driving component are symmetrically arranged on two sides of the drawing die holder along the cold drawing direction, and the steel pipe supporting bracket is arranged above the feeding component; the feeding assembly comprises a first feeding plate, a second feeding plate, a sliding rail and a core rod internal mold assembly. According to the utility model, through the structural design of the feeding component, after one cold drawing is completed, the first feeding plate and the second feeding plate simultaneously reciprocate among the first preparation interval, the working interval and the second preparation interval along the sliding rail, so that the steel pipe positioned at the working interval directly performs cold drawing operation, and the steel pipe positioned at the first preparation interval or the second preparation interval performs cold drawing preparation operation, thereby greatly shortening the preparation time of feeding and cold drawing of the steel pipe and improving the production efficiency.
Description
Technical Field
The utility model relates to the field of cold drawing machines, in particular to a cold drawing machine.
Background
Cold drawing refers to a process of processing a metal material into a product with a certain shape and mechanical properties by drawing under normal temperature conditions, for example, a cold drawn steel tube is manufactured by a drawing process by using a cold drawing machine.
The cold drawing machine can be divided into various types of drawing machines such as chain type drawing machines, hydraulic transmission type drawing machines, rack type drawing machines, screw type drawing machines and the like according to a transmission mode.
The prior chain cold drawing machine has the following defects in use:
1. the length of the driving chain is longer, the cost is high, the weight of the whole transmission system is large, the driving energy consumption is high, and huge impact force is generated to strike the lathe bed when the drawing trolley and the driving chain are unhooked, so that huge noise is generated, and the working environment is bad.
2. The straightness of the drawn steel tube is low, multiple finishing and straightening processes are needed, and the workload is high.
3. Drawing efficiency is low, and particularly, the preparation time between two successive drawing is long.
Disclosure of Invention
The present utility model solves the above-mentioned problems with prior chain driven cold drawing machines in the prior art by providing a cold drawing machine.
In order to solve the technical problems, the utility model provides a cold drawing machine, which comprises: the steel pipe support bracket is arranged above the feeding component; the feeding assembly comprises a first feeding plate, a second feeding plate, a sliding rail and a core rod internal mold assembly; the sliding rail is arranged in a direction perpendicular to the cold drawing direction, the section, facing the die holder, of the sliding rail is a working section, and the sections positioned at the two sides of the die holder are a first preparation section and a second preparation section respectively; the first feeding plate and the second feeding plate are arranged on the sliding rail side by side, and steel pipes to be cold drawn are placed on the first feeding plate and the second feeding plate; the core rod internal mold assembly is inserted into the steel pipe in a direction parallel to the cold drawing direction or returns to reset; the first feeding plate and the second feeding plate are driven by the air cylinder to reciprocate along the sliding rail among the first preparation section, the working section and the second preparation section.
In a preferred embodiment of the present utility model, the mandrel inner die assembly comprises a mandrel holder, a mandrel and an inner die, wherein the inner die is mounted on the mandrel holder, the mandrel is arranged in a direction parallel to the cold drawing, one end of the mandrel is connected with the mandrel holder, and the other end of the mandrel is connected with the mandrel driving motor.
In a preferred embodiment of the present utility model, the drawing die comprises a die holder, a die sleeve, a cold-drawn outer die and a forced lubricating oil device; the die holder is in an open cavity structure towards one side of the feeding assembly, a steel pipe through hole is formed in the middle of the other side of the die holder, the die sleeve and the cold-drawing outer die are sequentially sleeved and embedded in the open cavity structure of the die holder, the forced lubricating oil device is arranged on the outer sides of the cold-drawing outer die and the die sleeve, and an oil filling hole communicated with a cold-drawing channel in the cold-drawing outer die is formed in the forced lubricating oil device.
In a preferred embodiment of the utility model, the side of the cold-drawing external die facing the steel pipe through hole is a convex spherical surface, and the die sleeve is provided with a concave spherical surface matched with the convex spherical surface.
In a preferred embodiment of the present utility model, the drawing die further includes an adjusting bolt, and the die sleeve is connected with the die holder through the adjusting bolt.
In a preferred embodiment of the present utility model, the drawing drive assembly includes a return sprocket, a cold drawing sprocket, a return chain, a cold drawing chain, and a cold drawing trolley; wherein the return chain wheel is arranged close to one side of the drawing die seat; the two ends of the cold-drawing chain are respectively connected with the two ends of the return chain into a whole and sleeved on the cold-drawing chain wheel and the return chain wheel; the cold drawing trolley is fixed on the cold drawing chain, and the cold drawing chain and the return chain do the same-direction reciprocating motion along the cold drawing chain wheel and the return chain wheel respectively.
In a preferred embodiment of the utility model, the cold drawing trolley is mounted on the end of the cold drawing chain on the side close to the drawing die seat.
In a preferred embodiment of the present utility model, an infrared sensing device is further installed between the drawing die base and the cold drawing trolley.
In a preferred embodiment of the utility model, the cold drawing machine is a multi-wire cold drawing machine, the number of drawing dies in the drawing die seat is more than 2, and the drawing dies are arranged side by side, and the number and the positions of the cold drawing driving assembly and the infrared induction device are matched with those of the drawing seat; the number of the steel pipe and core rod internal mold components contained on the first feeding plate and the second feeding plate is matched with the number and the positions of the drawing mold.
In a preferred embodiment of the present utility model, the cold drawing machine is a four wire cold drawing machine.
The beneficial effects of the utility model are as follows: according to the cold drawing machine, through the structural design of the feeding component, after one cold drawing is completed, the first feeding plate and the second feeding plate simultaneously reciprocate among the first preparation interval, the working interval and the second preparation interval along the sliding rail, so that the steel pipe positioned at the working interval directly performs cold drawing operation, and the steel pipe positioned at the position of the first preparation interval or the second preparation interval performs cold drawing preparation operation, thereby greatly shortening the preparation time of feeding and cold drawing of the steel pipe and improving the production efficiency.
Drawings
FIG. 1 is a schematic perspective view of a cold drawing machine according to a preferred embodiment 1 of the present utility model;
FIG. 2 is a schematic top view of the structure of FIG. 1;
FIG. 3 is a schematic view of the positions of the working section, the first preparation section and the second preparation section in FIG. 1;
FIG. 4 is a schematic view showing the internal structure of the die set;
the components in the drawings are marked as follows:
100. the feeding assembly is 110, the first feeding plate is 120, the second feeding plate is 130, the sliding rail is 140, the core rod internal mold assembly is 141, the core rod seat is 142, and the core rod is 143;
200. the die comprises a die holder, 210, 220, a die sleeve, 230, a cold-drawing outer die, 240, a forced lubricating oil device, 250, an adjusting bolt, 211, a steel pipe through hole, 221, a third steel pipe through channel, 222, a concave spherical surface, 231, a second steel pipe through channel, 232, a convex spherical surface, 241, a first steel pipe through channel, 242 and an oil filling hole;
300. cold drawing drive assembly 310, return sprocket 320, cold drawing sprocket 330, return chain 340, cold drawing chain 350, cold drawing trolley;
400. a steel pipe support bracket 500. An infrared sensing device;
A. a working area; B. a first preparation interval; C. and a second preparation section.
Detailed Description
The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present utility model.
Referring to fig. 1-4, an embodiment of the present utility model includes:
example 1
The utility model discloses a cold drawing machine, which is a four-wire cold drawing machine, comprising: a feeding assembly 100, a die holder 200, a cold drawing driving assembly 300, a steel pipe support bracket 400 and an infrared sensing device 500. The feeding assembly 100 and the cold drawing driving assembly 300 are symmetrically arranged at both sides of the drawing die holder 200 along the direction of cold drawing, the steel pipe support bracket 400 is installed above the feeding assembly 100, and the infrared sensing device 500 is installed between the drawing die holder 200 and the cold drawing driving assembly 300, for sensing the steel pipe coming out of the drawing die holder 200.
Specifically, four die dies arranged side by side are mounted on the die holder 200, and each die includes a die holder 210, a die sleeve 220, a cold-drawing outer die 230, a forced lubrication device 240, and an adjusting bolt 250. The die holder 210 has an open cavity structure on one side facing the feeding assembly 100, and a steel tube through hole 211 is formed in the middle of the other side. The die sleeve 220 is embedded in the open cavity structure of the die holder 210, and the periphery of the die sleeve is fixed with the die holder 210 through the adjusting bolts 250. The cold drawn outer mold 230 is embedded within the sleeve 220. The forced lubrication device 240 is installed at the outer sides of the cold drawn outer mold 230 and the mold sleeve 220, and is screw-coupled to the mold sleeve 220. The first steel pipe through channel 241, the second steel pipe through channel 231 and the third steel pipe through channel 221 are respectively formed in the middle parts of the forced lubrication device 240, the cold drawing outer die 230 and the die sleeve 220, and the central lines of the first steel pipe through channel 241, the second steel pipe through channel 231 and the third steel pipe through channel 221 are all collinear with the central line of the steel pipe through hole 211 on the die holder 210, which is the cold drawing central line.
Because the die holder 210 is fixed on the die holder 200, the die holder 200 is fixed on the ground, and the consistency of the central lines of the first steel pipe through channel 241, the second steel pipe through channel 231 and the third steel pipe through channel 221 can be primarily adjusted by the design of the adjusting bolt 250, thereby being beneficial to improving the straightness of the cold drawn steel pipe.
The side of the cold-drawing outer die 230 facing the steel tube through hole 211 is a convex spherical surface 232, and the die sleeve 220 is provided with a concave spherical surface 222 matched with the convex spherical surface. The convex spherical surface 232 and the concave spherical surface 222 have a slight rotation function, so that the straightness of the center lines of the second steel pipe through channel 231 and the third steel pipe through channel 221 can be further adjusted, the straightness of the cold drawn steel pipe can be further improved, the subsequent finishing and straightening process of the steel pipe can be reduced or eliminated, the workload is reduced, and the production efficiency is improved.
In addition, the forced lubricating oil device 240 is provided with oil holes 242 distributed obliquely, the oil holes 242 are distributed annularly along the steel pipe penetrating channel on the forced lubricating oil device 240, one end of the oil outlet of the oil holes 242 is communicated with the steel pipe penetrating channel in the cold-drawing outer die 230, and is used for conveying lubricating oil into the cold-drawing outer die 230 and the steel pipe penetrating channel in the whole drawing die along with cold drawing of the steel pipe, so that a comprehensive and effective lubricating effect is achieved on the steel pipe. The forced lubricating oil device 240 is used for supplying lubricating oil for lubrication, so that the production of dangerous waste can be reduced instead of the traditional phosphating and saponification lubrication, and in addition, the defects of galling, fracture and the like on the surface of the cold drawn steel tube caused by phosphating and saponification lubrication can be effectively avoided due to stable lubricating and cooling characteristics of the lubricating oil, so that the yield and the surface quality of the steel tube are improved.
Specifically, the feed assembly 100 includes a first feed plate 110, a second feed plate 120, a slide rail 130, and a mandrel inner die assembly 140. The number of the sliding rails 130 is more than two, and the sliding rails 130 are arranged in a direction perpendicular to the cold drawing direction, the section of the sliding rails 130 facing the die holder 200 is a working section a, and the sections located at two sides of the die holder are a first preparation section B and a second preparation section C, respectively. The steel pipe support bracket 400 is installed right above the working area A; the first feeding plate 110 and the second feeding plate 120 are arranged side by side on the sliding rail 130, and can reciprocate along the sliding rail 130 between the first preparation section B, the working section a and the second preparation section C under the driving of the cylinder. Wherein the first feeding plate 110 reciprocates between a first preparation interval B and a working interval a, and the second feeding plate 120 reciprocates between the working interval a and a second preparation interval C.
The steel pipes on the steel pipe support bracket 400 may be placed on the first feeding plate 110 and the second feeding plate 120 located at the first preparation section B and the second preparation section C, respectively, from both sides. On a four-wire cold drawing machine, the number of steel pipes to be cold drawn on the first feeding plate 110 and the second feeding plate 120 is 4, and the positions of the steel pipes correspond to the positions of drawing dies on the drawing die holder 200 respectively.
The mandrel inner die assembly 140 is located on the side of the first and second feed plates 110, 120 away from the die holder 200, and is positioned and number matched to the steel tube to be cold drawn. Specifically, the mandrel inner die assembly 140 includes 1 mandrel receptacle 141, 4 mandrels 142, and 4 inner dies 143. The 1 mandrel holders 141 are arranged in a direction perpendicular to the cold drawing, the 4 internal molds 143 are correspondingly installed in the mandrel holders 141, one ends of the 4 mandrels 142 are respectively installed in the mandrel holders 141 at corresponding positions, the other ends of the 4 mandrels are respectively connected with 4 driving motors (not shown), and the driving motors drive the mandrels to enter the steel tube to be cold drawn or return to reset.
When the first feeding plate 110 is located in the working area a on the sliding rail 130, the second feeding plate 120 is located in the second preparation area C on the sliding rail 130, at this time, the steel pipe located in the working area a enters into the drawing die holder 200 to perform the cold drawing operation, meanwhile, the steel pipe to be cold drawn falls from the steel pipe support bracket 400 to the corresponding position of the second feeding plate 120 located in the second preparation area, and the operations of feeding the mandrel and the inner die are performed by using the mandrel inner die assembly 140, so that the drawing operation can be performed immediately after moving to the working area a, the cold drawing period is shortened, and the cold drawing efficiency is improved.
After the steel pipe on the first feeding plate 110 is cold drawn, the first feeding plate 110 and the second feeding plate 120 are both moved rapidly towards the direction of the first preparation interval B under the action of the air cylinder, at this time, the second feeding plate 120 is moved to the position of the working interval a, the prepared steel pipe thereon is directly cold drawn, the first feeding plate 110 is moved to the position of the first preparation interval B, the mandrel inner mold assembly 140 is returned to reset, then the steel pipe on the steel pipe support bracket 400 falls into the corresponding position (feeding groove) on the first feeding plate 110, and finally the mandrel inner mold assembly 140 is utilized to perform the operations of feeding the mandrel and the inner mold, so that the steel pipe is cold drawn.
When the cold drawing of the steel pipes on the second feeding plate 120 is completed, the second feeding plate 120 and the first feeding plate 110 are rapidly moved in the direction of the second preparation section C under the action of the cylinder, so that the steel pipes prepared on the first feeding plate 110 are subjected to the feeding operation, and the second feeding plate 120 is subjected to the steel pipe feeding preparation operation as described above, so that the feeding and feeding preparation operations are reciprocally performed.
After the primary cold drawing is completed, the first feeding plate 110 and the second feeding plate 120 simultaneously reciprocate along the sliding rail 130 between the first preparation interval B, the working interval a and the second preparation interval C, so that the steel pipe at the working interval a is subjected to the straight cold drawing operation, and the steel pipe at the first preparation interval B or the second preparation interval C is subjected to the straight cold drawing preparation operation.
Specifically, the cold-drawing drive assembly 300 includes a return sprocket 310, a cold-drawing sprocket 320, a return chain 330, a cold-drawing chain 340, and a cold-drawing trolley 350. Wherein the return sprocket 310 is disposed near one side of the drawing die base 200; the cold drawing chain 340 and the return chain 330 have the same length, and two ends of the cold drawing chain 320 are respectively connected with two ends of the return chain 330 into a whole and are sleeved on the cold drawing sprocket 320 and the return sprocket 310. The cold drawing chain 340 and the return chain 330 reciprocate in the same direction along the cold drawing sprocket 320 and the return sprocket 310, respectively, that is, the cold drawing chain 340 directly contacts with the cold drawing sprocket 320 and moves, and the return chain 330 directly contacts with the return sprocket 310 and moves. Through the connection design of the cold drawing chain 340 and the return chain 330 with equal length and the design of the reciprocating motion of the cold drawing chain 340 and the return chain 330 along the cold drawing chain wheel 320 and the return chain wheel 310 respectively, the length of the cold drawing chain 340 is effectively shortened, the length of the cold drawing chain 340 is reduced to 1.5 times as much as 3 times as that of a cold drawing steel pipe by raw materials, and the length is shortened by 50 percent, thereby effectively lightening the self weight of the cold drawing driving assembly 300 and saving the driving energy consumption.
In addition, the cold drawing trolley 350 is fixed on the cold drawing chain 340, and the installation position is the end of the cold drawing chain 340 near the drawing die seat 200, for clamping the cold drawing steel pipe of the drawing die seat 200. The height of the clamping pliers on the cold drawing trolley 350 for connecting the cold drawn steel tube is in a straight line with the drawing center line on the drawing die. Through the design of the fixed connection of the cold drawing trolley 350 and the cold drawing chain 340, on one hand, the stability of clamping the steel pipe each time is improved, on the other hand, the noise generated by the huge impact generated when the cold drawing trolley and the chain are unhooked is avoided, the production operation environment is greatly optimized, and the environment-friendly production concept is met.
In addition, the cold drawing machine can be a single-wire, double-wire, three-wire or N-wire cold drawing machine, and the yield in unit time can be improved through multi-wire design, so that the production efficiency is improved.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.
Claims (10)
1. A cold drawing machine, comprising: the steel pipe support bracket is arranged above the feeding component; the feeding assembly is characterized by comprising a first feeding plate, a second feeding plate, a sliding rail and a core rod internal mold assembly; the sliding rail is arranged in a direction perpendicular to the cold drawing direction, the section, facing the die holder, of the sliding rail is a working section, and the sections positioned at the two sides of the die holder are a first preparation section and a second preparation section respectively; the first feeding plate and the second feeding plate are arranged on the sliding rail side by side, and steel pipes to be cold drawn are placed on the first feeding plate and the second feeding plate; the core rod internal mold assembly is inserted into the steel pipe in a direction parallel to the cold drawing direction or returns to reset; the first feeding plate and the second feeding plate are driven by the air cylinder to reciprocate along the sliding rail among the first preparation section, the working section and the second preparation section.
2. The cold drawing machine according to claim 1, wherein the mandrel inner die assembly comprises a mandrel holder, a mandrel and an inner die, wherein the inner die is mounted on the mandrel holder, the mandrel is arranged in a direction parallel to the cold drawing, one end of the mandrel is connected to the mandrel holder, and the other end is connected to the mandrel driving motor.
3. A cold drawing machine according to claim 2, wherein the drawing die comprises a die holder, a die sleeve, a cold drawing outer die and a forced lubrication device; the die holder is in an open cavity structure towards one side of the feeding assembly, a steel pipe through hole is formed in the middle of the other side of the die holder, the die sleeve and the cold-drawing outer die are sequentially sleeved and embedded in the open cavity structure of the die holder, the forced lubricating oil device is arranged on the outer sides of the cold-drawing outer die and the die sleeve, and an oil filling hole communicated with a cold-drawing channel in the cold-drawing outer die is formed in the forced lubricating oil device.
4. A cold drawing machine according to claim 3, wherein the side of the cold drawing external die facing the steel tube through hole is a convex spherical surface, and the die sleeve is provided with a concave spherical surface matched with the convex spherical surface.
5. The cold drawing machine of claim 4 wherein the die set further comprises an adjusting bolt, the die sleeve and the die holder being connected by the adjusting bolt.
6. The cold drawing machine of claim 5, wherein the cold drawing drive assembly comprises a return sprocket, a cold drawing sprocket, a return chain, a cold drawing chain, and a cold drawing trolley; wherein the return chain wheel is arranged close to one side of the drawing die seat; the two ends of the cold-drawing chain are respectively connected with the two ends of the return chain into a whole and sleeved on the cold-drawing chain wheel and the return chain wheel; the cold drawing trolley is fixed on the cold drawing chain, and the cold drawing chain and the return chain do the same-direction reciprocating motion along the cold drawing chain wheel and the return chain wheel respectively.
7. The cold drawing machine of claim 6, wherein the cold drawing trolley is mounted on the cold drawing chain at an end portion near the drawing die seat side.
8. The cold drawing machine of claim 7, wherein an infrared sensing device is further installed between the drawing die base and the cold drawing trolley.
9. The cold drawing machine according to claim 8, wherein the cold drawing machine is a multi-wire cold drawing machine, the number of drawing dies in the drawing die seat is more than 2, and the drawing dies are arranged side by side, and the number and the positions of the cold drawing driving assembly and the infrared sensing device are matched with those of the drawing die seat; the number of the steel pipe and core rod internal mold components contained on the first feeding plate and the second feeding plate is matched with the number and the positions of the drawing mold.
10. A cold drawing machine according to claim 9, wherein the cold drawing machine is a four wire cold drawing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223147026.8U CN219151180U (en) | 2022-11-26 | 2022-11-26 | Cold drawing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223147026.8U CN219151180U (en) | 2022-11-26 | 2022-11-26 | Cold drawing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219151180U true CN219151180U (en) | 2023-06-09 |
Family
ID=86645702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223147026.8U Active CN219151180U (en) | 2022-11-26 | 2022-11-26 | Cold drawing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219151180U (en) |
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2022
- 2022-11-26 CN CN202223147026.8U patent/CN219151180U/en active Active
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