阅读说明：本技术 一种用于不锈钢产品加工的冷拔设备 (Cold drawing equipment for processing stainless steel products ) 是由 陈聪明 于 2021-09-09 设计创作，主要内容包括：本发明属于不锈钢产品加工技术领域,尤其是一种用于不锈钢产品加工的冷拔设备,现提出以下方案,包括操作台和固定杆,所述固定杆的底部外壁固定连接有预冷拔模具。本发明通过设置有塑型罩、滑动块、液压缸和塑型板,在塑型罩的内壁开有导向槽,不锈钢产品预冷拔过程中,调节液压缸带动塑型板与不锈钢产品的外壁相接触,塑型板在随着预冷拔模具在不锈钢产品外壁滑动的过程中,与不锈钢产品之间产生挤压,冷拔后的不锈钢产品易形变,通过塑型板对其外壁进行打磨塑型,防止其外壁出现参差不齐的情况,塑型板和不锈钢产品相互挤压的过程中,滑动块在导向槽中滑动,使得塑型板实现自旋转,提高对不锈钢产品塑型的效果。(The invention belongs to the technical field of stainless steel product processing, and particularly relates to cold-drawing equipment for processing a stainless steel product. The invention is provided with the plastic cover, the sliding block, the hydraulic cylinder and the plastic plate, the inner wall of the plastic cover is provided with the guide groove, the hydraulic cylinder is adjusted to drive the plastic plate to be contacted with the outer wall of the stainless steel product in the pre-cold drawing process of the stainless steel product, the plastic plate is extruded with the stainless steel product in the sliding process of the pre-cold drawing die on the outer wall of the stainless steel product, the stainless steel product after cold drawing is easy to deform, the outer wall of the plastic plate is polished and molded through the plastic plate, the uneven condition of the outer wall of the plastic plate is prevented, and the sliding block slides in the guide groove in the mutual extrusion process of the plastic plate and the stainless steel product, so that the plastic plate realizes self-rotation, and the molding effect of the stainless steel product is improved.)

1. A cold drawing device for processing stainless steel products comprises an operation table (1) and a fixing rod (16), and is characterized in that the bottom outer wall of the fixing rod (16) is fixedly connected with a pre-cold drawing die (11), the outer wall of the pre-cold drawing die (11) is fixedly connected with an annular extrusion plate (32), the outer wall of the annular extrusion plate (32) located on the inner side is fixedly connected with bearing plates (36) at equal intervals, the outer wall of one side, opposite to each two adjacent bearing plates (36), is connected with a same adaptive extrusion roller (34) through a bearing, the outer wall of the annular extrusion plate (32) located between each two adaptive extrusion rollers (34) is fixedly connected with an extrusion spring (33), the outer wall of the extrusion spring (33) is fixedly connected with an extrusion plate (35), the top outer wall of the operation table (1) is fixedly connected with a support rod (13), and the top outer wall of the support rod (13) is fixedly connected with a cold drawing die (21), the outer wall of the cold drawing die (21) facing the pre-cold drawing die (11) is fixedly connected with an extrusion cover (20), and the extrusion cover (20) is of a multilayer annular plate body structure.

2. A cold-drawing equipment for stainless steel product processing according to claim 1, characterized in that both ends of the top outer wall of the operation table (1) are fixedly connected with supporting plates (14), the top outer walls of the two supporting plates (14) are fixedly connected with the same top plate (4), and the bottom outer wall of the top plate (4) is fixedly connected with guide rails (15).

3. The cold-drawing equipment for processing the stainless steel products as claimed in claim 2, wherein a motor plate (2) is fixedly connected to the outer wall of one side of the supporting plate (14), a motor (3) is fixedly connected to the outer wall of the top of the motor plate (2), a lead screw (6) is fixedly connected to the output shaft of the motor (3) through a shaft coupling, the other end of the lead screw (6) is connected to the outer wall of the other supporting plate (14) through a bearing, an adjusting block (5) is connected to the outer wall of the lead screw (6) through a thread, the adjusting block (5) is slidably connected to the inner wall of the guide rail (15), and a fixing rod (16) is fixedly connected to the outer wall of the adjusting block (5).

4. A cold-drawing device for processing stainless steel products according to claim 1, wherein the outer wall of the pre-cold-drawing die (11) is fixedly connected with two side frames (27), the outer walls of the two side frames (27) are fixedly connected with the same plastic cover (24), the inner wall of the plastic cover (24) is provided with a guide groove, the inner wall of the guide groove is connected with sliding blocks (25) in a sliding mode at equal intervals, the outer wall of each sliding block (25) is fixedly connected with a hydraulic cylinder (26), and the outer wall of each hydraulic cylinder (26) is fixedly connected with a plastic plate (28).

5. A cold-drawing equipment for stainless steel product processing according to claim 4, characterized in that the outer wall of the annular extrusion plate (32) is fixedly connected with a cooling cover (23), the inner wall of the cooling cover (23) is fixedly connected with a cooling water filling frame (30), the outer wall of the cooling water filling frame (30) is provided with cooling holes (31) at equal intervals, and the inner wall of the cooling water filling frame (30) is fixedly connected with a water filtering net (29).

6. The cold-drawing equipment for the processing of stainless steel products as claimed in claim 5, wherein the outer wall of the fixed rod (16) is fixedly connected with an air blower (17), the air blowing end of the air blower (17) is connected to the inside of the cooling water filling frame (30) through a pipeline, the outer wall of the cooling water filling frame (30) is provided with two circulation holes, the inner walls of the two circulation holes are fixedly connected with circulation pipes, and the two circulation pipes are connected with a cooling water circulation system.

7. A cold-drawing equipment for stainless steel product processing according to claim 2, characterized in that the outer wall of the supporting plate (14) is fixedly connected with a side block (7), the outer wall of the side block (7) is fixedly connected with a fixing plate (8), and the outer wall of the fixing plate (8) is fixedly connected with a push rod motor (9).

8. A cold-drawing equipment for stainless steel product processing according to claim 7, characterized in that the output shaft of the push rod motor (9) is fixedly connected with a cooling frame (10), and the outer wall of the cooling frame (10) is provided with two connecting holes, and the inner walls of the two connecting holes are fixedly connected with a circulating cooling water pipe (18).

9. A cold-drawing equipment for stainless steel product processing according to claim 8, characterized in that the outer wall of the cooling frame (10) is fixedly connected with adaptation springs (40) at equal intervals, the outer wall of each column of adaptation springs (40) is fixedly connected with an arc-shaped transfer plate (19), and the outer wall of each arc-shaped transfer plate (19) and the cooling frame (10) is fixedly connected with a transfer expansion plate (39).

10. A cold-drawing equipment for stainless steel product processing according to claim 1, characterized in that the outer wall of the cold-drawing die (21) is fixedly connected with two mounting brackets (37), the outer wall of the two mounting brackets (37) is fixedly connected with the same heating frame (12), the inner wall of the heating frame (12) is fixedly connected with an electric heating pipe (22), and the outer wall of the heating frame (12) on the inner side is fixedly connected with heat conducting plates (38) at equal intervals.

Technical Field

The invention relates to the technical field of stainless steel product processing, in particular to cold-drawing equipment for processing stainless steel products.

Background

Cold drawing-is a processing technique of materials, and for metal materials, cold drawing refers to drawing under the condition that the materials are at normal temperature in order to achieve a certain shape and a certain mechanical property; compared with hot forming, the cold-drawn product has the advantages of high size precision and good surface smoothness; according to the temperature of metal during drawing, drawing below the recrystallization temperature is cold drawing, and drawing above the recrystallization temperature is hot drawing; cold drawing is the most common drawing mode applied in the production of metal wires and wires, and during hot drawing, the metal wires are heated before entering a die hole and are mainly used for drawing metal wires of high-melting-point metals such as tungsten, molybdenum and the like; when in warm drawing, the metal wire also needs to be heated to a temperature within a specified range by a heater and then enters a die hole for drawing, and the method is mainly used for drawing zinc wires and alloy wires which are difficult to deform, such as high-speed steel wires and bearing steel wires; when a stainless steel product is processed, it needs to be subjected to drawing change by a cold drawing device.

The existing stainless steel product needs to be stretched through cold drawing equipment during processing, the existing cold drawing equipment generally cools the stainless steel product, then the stainless steel product is pulled to pass through a cold drawing die, cold drawing of the stainless steel product is realized, the cold drawing mode easily causes fatal damage to the stainless steel, the diameter difference between the cooled stainless steel product and the cold drawing die is large, the stainless steel product is directly and forcibly stretched through the cold drawing die, the deformation degree of the stainless steel product is large in the forced stretching process, the internal structure of the stainless steel product is easily and directly damaged, the stretched stainless steel product is poor in toughness, the use value of the stainless steel product is lost, and the cold drawing equipment is poor in use value.

Disclosure of Invention

The invention provides cold drawing equipment for processing a stainless steel product, which is based on the fact that the stainless steel product needs to be drawn by cold drawing equipment during processing, the stainless steel product is generally cooled by the existing cold drawing equipment, then the stainless steel product is drawn to pass through a cold drawing die to realize cold drawing of the stainless steel product, the cold drawing mode is easy to cause fatal damage to the stainless steel, the diameter difference between the cooled stainless steel product and the cold drawing die is large, the stainless steel product is directly drawn by the cold drawing die in a forced drawing mode, the deformation degree of the stainless steel product is large in the forced drawing process, the internal structure of the stainless steel product is easy to directly cause damage, the drawn stainless steel product is lack of toughness, the use value of the drawn stainless steel product is lost, and the cold drawing equipment is lack of use value.

The cold-drawing equipment for processing the stainless steel product comprises an operating table and a fixed rod, wherein the outer wall of the bottom of the fixed rod is fixedly connected with a pre-cold-drawing die, and the outer wall of the precooling drawing die is fixedly connected with an annular extrusion plate, the outer wall of the annular extrusion plate positioned at the inner side is fixedly connected with bearing plates at equal intervals, and the outer wall of the opposite side of each two adjacent bearing plates is connected with the same adaptive squeeze roller through a bearing, the outer wall of the annular extrusion plate positioned between each two adaptive extrusion rollers is fixedly connected with an extrusion spring, the outer wall of the extrusion spring is fixedly connected with an extrusion plate, the outer wall of the top of the operating platform is fixedly connected with a supporting rod, and the outer wall of the top of the supporting rod is fixedly connected with a cold-drawing die, the outer wall of the cold-drawing die facing the pre-cold-drawing die is fixedly connected with an extrusion cover, and the extrusion cover is of a multilayer annular plate structure.

As a further scheme of the invention, two ends of the outer wall of the top of the operating platform are fixedly connected with supporting plates, the outer walls of the tops of the two supporting plates are fixedly connected with the same top plate, and the outer wall of the bottom of the top plate is fixedly connected with a guide rail.

As a further scheme of the invention, a motor plate is fixedly connected to the outer wall of one side of the supporting plate, a motor is fixedly connected to the outer wall of the top of the motor plate, an output shaft of the motor is fixedly connected with a lead screw through a coupler, the other end of the lead screw is connected to the outer wall of the other supporting plate through a bearing, the outer wall of the lead screw is connected with an adjusting block through threads, the adjusting block is slidably connected to the inner wall of the guide rail, and a fixing rod is fixedly connected to the outer wall of the adjusting block.

As a further scheme of the invention, the outer wall of the precooling and drawing die is fixedly connected with two side frames, the outer walls of the two side frames are fixedly connected with the same plastic cover, the inner wall of the plastic cover is provided with a guide groove, the inner wall of the guide groove is connected with sliding blocks in a sliding manner at equal intervals, the outer wall of each sliding block is fixedly connected with a hydraulic cylinder, and the outer wall of the hydraulic cylinder is fixedly connected with a plastic plate.

As a further scheme of the invention, the outer wall of the annular extrusion plate is fixedly connected with a cooling cover, the inner wall of the cooling cover is fixedly connected with a cooling water filling frame, cooling holes are formed in the outer wall of the cooling water filling frame at equal intervals, and the inner wall of the cooling water filling frame is fixedly connected with a water filtering net.

As a further scheme of the invention, the outer wall of the fixed rod is fixedly connected with an air blower, the air blowing end of the air blower is connected to the inside of the cooling water filling frame through a pipeline, the outer wall of the cooling water filling frame is provided with two circulation holes, the inner walls of the two circulation holes are fixedly connected with circulation pipes, and the two circulation pipes are connected with a cooling water circulation system.

As a further scheme of the invention, the outer wall of the supporting plate is fixedly connected with a side block, the outer wall of the side block is fixedly connected with a fixing plate, and the outer wall of the fixing plate is fixedly connected with a push rod motor.

As a further scheme of the invention, the output shaft of the push rod motor is fixedly connected with a cooling frame, the outer wall of the cooling frame is provided with two connecting holes, and the inner walls of the two connecting holes are fixedly connected with a circulating cooling water pipe.

As a further scheme of the invention, the outer wall of the cooling frame is fixedly connected with adaptive springs at equal intervals, the outer wall of each row of adaptive springs is fixedly connected with an arc-shaped transfer plate, and the outer walls of each arc-shaped transfer plate and the cooling frame are fixedly connected with a transfer expansion plate.

As a further scheme of the invention, the outer wall of the cold-drawing die is fixedly connected with two mounting frames, the outer walls of the two mounting frames are fixedly connected with the same heating frame, the inner wall of the heating frame is fixedly connected with electric heating pipes, and the outer wall of the heating frame, which is positioned at the inner side, is fixedly connected with heat-conducting plates at equal intervals.

The beneficial effects of the invention are as follows:

1. through the arrangement of the pre-cold drawing die, the extrusion cover, the adaptive extrusion roller and the extrusion plate, before the cold drawing operation of the stainless steel product is carried out, the stainless steel product passes through the pre-cold drawing die, the motor drives the screw rod to rotate, so that the pre-cold drawing die is driven to slide on the outer wall of the stainless steel product, in the sliding process, the adaptive extrusion roller rotates on the bearing plate, the damage to the pre-cold drawing of the stainless steel product is reduced through rotary extrusion, meanwhile, the adaptive extrusion roller and the extrusion plate work in a matching way, so that the pre-cold drawing stretching of the stainless steel product is realized, after the pre-cold drawing stretching is finished, the multi-layer extrusion cover carries out multiple times of extrusion stretching on the pre-cold drawn and stretched stainless steel product, so that the stainless steel product is subjected to the extrusion stretching layer by layer after layer by layer before the final cold drawing, the diameter difference between the cold drawing die and the stainless steel product is reduced, and the damage degree of the stainless steel product after the final cold drawing operation is ensured to be lowest, the use value still exists.

2. The plastic cover, the sliding block, the hydraulic cylinder and the plastic plate are arranged, the guide groove is formed in the inner wall of the plastic cover, the plastic plate is driven by the adjusting hydraulic cylinder to be in contact with the outer wall of a stainless steel product in the pre-cooling drawing process of the stainless steel product, the plastic plate is extruded with the stainless steel product in the sliding process of the outer wall of the stainless steel product along with a pre-cooling drawing die, the stainless steel product after cold drawing is easy to deform, the outer wall of the stainless steel product is polished and molded through the plastic plate, the uneven condition of the outer wall of the stainless steel product is prevented, the plastic plate and the stainless steel product are extruded mutually, the sliding block slides in the guide groove, the plastic plate rotates automatically, and the molding effect of the stainless steel product is improved.

3. Through being provided with cooling module, carry out stainless steel product precooling drawing and before the cold drawing operation, it has the inside reciprocating motion of cooling frame at the stainless steel product of cooling water to adjust push rod motor drive packing, the cooling frame moves into the inside in-process of stainless steel product, the adaptation spring is extruded, make arc transmission plate and stainless steel product inner wall contact closely, thereby improve the refrigerated effect of cooling, and simultaneously, the air-blower fills the frame with the leading-in cooling water of external gas, cold gas passes through the outer wall that the cooling hole arranged to the stainless steel product, both combine together, improve stainless steel product cooling effect, the damage that receives when indirectly reducing the stainless steel product cold drawing.

4. Through being provided with the heating frame, electric heating pipe and heat-conducting plate, the heat-conducting plate is the arc structure, the cavity diameter in the cavity that forms between the heat-conducting plate is the same with the cold drawing mould, the stainless steel product is through the tensile back of cold drawing, its self temperature is lower, easy deformation, heat the heating frame through electric heating pipe, the heat passes through the surface of heat-conducting plate transmission to stainless steel product, make it rise to original temperature fast, reduce the probability of its deformation, and simultaneously, the stainless steel product after the cold drawing is at the in-process and the heat-conducting plate laminating of pulling out, the heat-conducting plate plays the effect of polishing to the stainless steel product in the heat of transmission, improve the smooth degree on stainless steel product surface after the cold drawing.

Drawings

FIG. 1 is a schematic view of the overall structure of a cold-drawing apparatus for stainless steel product processing according to the present invention;

FIG. 2 is a side view showing the overall structure of a cold drawing apparatus for stainless steel product processing according to the present invention;

FIG. 3 is a schematic structural diagram of a pre-cooling drawing die of a cold drawing apparatus for stainless steel product processing according to the present invention;

FIG. 4 is a cross-sectional view of the overall structure of FIG. 3;

FIG. 5 is a schematic structural view of an adaptive squeeze roll of a cold-drawing device for processing stainless steel products according to the present invention;

FIG. 6 is a schematic structural diagram of a cold-drawing die of a cold-drawing apparatus for processing stainless steel products according to the present invention;

FIG. 7 is a partial cross-sectional structural view of FIG. 6;

fig. 8 is a schematic view of a cooling assembly of a cold-drawing apparatus for stainless steel product processing according to the present invention.

In the figure: 1. an operation table; 2. a motor plate; 3. a motor; 4. a top plate; 5. an adjusting block; 6. a lead screw; 7. a side block; 8. a fixing plate; 9. a push rod motor; 10. a cooling frame; 11. pre-cold drawing the mould; 12. a heating frame; 13. a support bar; 14. a support plate; 15. a guide rail; 16. fixing the rod; 17. a blower; 18. a circulating cooling water pipe; 19. an arc-shaped transfer plate; 20. an extrusion cover; 21. cold drawing the mould; 22. an electric heating tube; 23. a cooling jacket; 24. a molding cover; 25. a slider; 26. a hydraulic cylinder; 27. a side frame; 28. a plastic plate; 29. a water filtering net; 30. a cooling water filling frame; 31. a cooling hole; 32. an annular extrusion plate; 33. a compression spring; 34. adapting the squeeze roll; 35. a pressing plate; 36. a bearing plate; 37. a mounting frame; 38. a heat conducting plate; 39. a transmission expansion plate; 40. the spring is adapted.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1, 3 and 5, a cold-drawing apparatus for processing stainless steel products comprises an operation table 1 and a fixing rod 16, wherein a pre-cold-drawing die 11 is fixedly connected to the outer wall of the bottom of the fixing rod 16, an annular extrusion plate 32 is fixedly connected to the outer wall of the pre-cold-drawing die 11, bearing plates 36 are fixedly connected to the outer wall of the inner side of the annular extrusion plate 32 at equal intervals, the outer wall of each two adjacent bearing plates 36 at the opposite side is connected with a same adaptive extrusion roller 34 through a bearing, an extrusion spring 33 is fixedly connected to the outer wall of the annular extrusion plate 32 between each two adaptive extrusion rollers 34, an extrusion plate 35 is fixedly connected to the outer wall of the extrusion spring 33, a support rod 13 is fixedly connected to the outer wall of the top of the operation table 1, a cold-drawing die 21 is fixedly connected to the outer wall of the top of the support rod 13, an extrusion cover 20 is fixedly connected to the outer wall of the cold-drawing die 21 facing the pre-cold-drawing die 11, the extrusion cover 20 is of a multilayer annular plate structure, the stainless steel product passes through the pre-cold drawing die 11 before being subjected to cold drawing operation through the pre-cold drawing die 11, the extrusion cover 20, the adaptive extrusion roller 34 and the extrusion plate 35, the motor 3 drives the screw rod 6 to rotate, so that the pre-cold drawing die 11 is driven to slide on the outer wall of the stainless steel product, the adaptive extrusion roller 34 rotates on the bearing plate 36 in the sliding process, the damage to the stainless steel product subjected to pre-cold drawing is reduced through rotary extrusion, meanwhile, the adaptive extrusion roller 34 and the extrusion plate 35 work in a matching mode, so that the stainless steel product is subjected to pre-cold drawing stretching, after the pre-cold drawing stretching is finished, the multilayer extrusion cover 20 performs multiple times of extrusion stretching on the stainless steel product subjected to pre-cold drawing, the stainless steel product is subjected to layer-by-layer extrusion stretching before final cold drawing, and the diameter difference between the cold drawing die 21 and the stainless steel product is reduced, the damage degree of the stainless steel product after the final cold drawing operation is ensured to be reduced to the minimum, and the use value still exists.

Referring to fig. 1 and 2, equal fixedly connected with backup pad 14 in top outer wall both ends of operation panel 1, and the same roof 4 of the top outer wall fixedly connected with of two backup pads 14, the bottom outer wall fixedly connected with guided way 15 of roof 4, one side outer wall fixedly connected with motor board 2 of backup pad 14, and the top outer wall fixedly connected with motor 3 of motor board 2, shaft coupling fixedly connected with lead screw 6 is passed through to motor 3's output shaft, the other end of lead screw 6 passes through the bearing and connects in the outer wall of another backup pad 14, the outer wall of lead screw 6 has regulating block 5 through threaded connection, regulating block 5 sliding connection is in the inner wall of guided way 15, 16 fixed connections of dead lever are in the outer wall of regulating block 5.

Referring to fig. 1, 3 and 4, the outer wall of the pre-drawing die 11 is fixedly connected with two side frames 27, the outer walls of the two side frames 27 are fixedly connected with the same plastic cover 24, the inner wall of the plastic cover 24 is provided with a guide groove, the inner wall of the guide groove is connected with sliding blocks 25 in a sliding manner at equal intervals, the outer wall of each sliding block 25 is fixedly connected with a hydraulic cylinder 26, the outer wall of each hydraulic cylinder 26 is fixedly connected with a plastic plate 28, the inner wall of the plastic cover 24 is provided with the guide groove by arranging the plastic cover 24, the sliding blocks 25, the hydraulic cylinders 26 and the plastic plates 28, the hydraulic cylinders 26 are adjusted to drive the plastic plates 28 to be contacted with the outer wall of a stainless steel product during the pre-drawing process of the stainless steel product, the plastic plates 28 are extruded with the stainless steel product during the sliding process of the outer wall of the pre-drawing die 11 along with the outer wall of the stainless steel product, the stainless steel product after the cold drawing is easy to deform, the outer wall of the stainless steel product is polished and shaped by the plastic plates 28, the condition that the outer wall of the stainless steel product is uneven is prevented, and in the mutual extrusion process of the molding plate 28 and the stainless steel product, the sliding block 25 slides in the guide groove, so that the molding plate 28 can realize self-rotation, and the molding effect of the stainless steel product is improved.

Referring to fig. 1, 2 and 4, a cooling cover 23 is fixedly connected to the outer wall of an annular extrusion plate 32, a cooling water filling frame 30 is fixedly connected to the inner wall of the cooling cover 23, cooling holes 31 are formed in the outer wall of the cooling water filling frame 30 at equal intervals, a water strainer 29 is fixedly connected to the inner wall of the cooling water filling frame 30, an air blower 17 is fixedly connected to the outer wall of a fixing rod 16, the air blowing end of the air blower 17 is connected to the inside of the cooling water filling frame 30 through a pipeline, two circulation holes are formed in the outer wall of the cooling water filling frame 30, circulation pipes are fixedly connected to the inner walls of the two circulation holes, and the two circulation pipes are connected to a cooling water circulation system.

Referring to fig. 1 and 8, the outer wall of the supporting plate 14 is fixedly connected with a side block 7, the outer wall of the side block 7 is fixedly connected with a fixing plate 8, the outer wall of the fixing plate 8 is fixedly connected with a push rod motor 9, the output shaft of the push rod motor 9 is fixedly connected with a cooling frame 10, the outer wall of the cooling frame 10 is provided with two connecting holes, the inner walls of the two connecting holes are fixedly connected with circulating cooling water pipes 18, the outer wall of the cooling frame 10 is fixedly connected with adaptive springs 40 at equal intervals, the outer wall of each column of adaptive springs 40 is fixedly connected with an arc-shaped transfer plate 19, the outer walls of each arc-shaped transfer plate 19 and the cooling frame 10 are fixedly connected with a transfer expansion plate 39, the push rod motor 9 is adjusted to drive the cooling frame 10 filled with cooling water to reciprocate in the stainless steel product before the stainless steel product is subjected to pre-cold drawing and cold-drawing operations, and the cooling frame 10 moves into the stainless steel product, adaptation spring 40 is extruded for arc transfer plate 19 and stainless steel product inner wall contact closely, thereby improve the refrigerated effect of cooling, simultaneously, air-blower 17 fills frame 30 with the leading-in cooling water of external gas, and cold gas passes through cooling hole 31 and arranges the outer wall to the stainless steel product, and both combine together, improve stainless steel product cooling effect, the damage that receives when indirectly reducing the stainless steel product cold drawing.

Referring to fig. 1, 6 and 7, two mounting frames 37 are fixedly connected to the outer wall of the cold-drawing die 21, the same heating frame 12 is fixedly connected to the outer walls of the two mounting frames 37, an electric heating tube 22 is fixedly connected to the inner wall of the heating frame 12, heat-conducting plates 38 are fixedly connected to the outer walls of the heating frame 12 at equal intervals, the heating frame 12, the electric heating tube 22 and the heat-conducting plates 38 are arranged, the heat-conducting plates 38 are of an arc structure, a cavity formed between the heat-conducting plates 38 has the same diameter as that of a cavity in the cold-drawing die 21, the stainless steel product has a low temperature and is easy to deform after being cold-drawn, the heating frame 12 is heated by the electric heating tube 22, heat is transferred to the surface of the stainless steel product through the heat-conducting plates 38, so that the stainless steel product can be quickly raised to the original temperature, the probability of deformation is reduced, meanwhile, the stainless steel product after being cold-drawn is attached to the heat-conducting plates 38, the heat conducting plate 38 plays a role in polishing the stainless steel product while transferring heat, and improves the smoothness of the surface of the cold-drawn stainless steel product.

When the stainless steel product cooling device is used, a stainless steel product is placed in the cooling cover 23, the adjusting push rod motor 9 drives the cooling frame 10 filled with cooling water to reciprocate in the stainless steel product, the adaptive spring 40 is extruded in the process that the cooling frame 10 moves into the stainless steel product, so that the arc-shaped transfer plate 19 is in close contact with the inner wall of the stainless steel product, the cooling effect is improved, meanwhile, the air blower 17 guides outside air into the cooling water filling frame 30, cold air is discharged to the outer wall of the stainless steel product through the cooling hole 31 and is combined with the cooling hole 31, after the stainless steel product is cooled, the stainless steel product passes through the pre-cooling die 11, the motor 3 drives the screw rod 6 to rotate, so that the pre-cooling die 11 is driven to slide on the outer wall of the stainless steel product, the adaptive extrusion roller 34 rotates on the bearing plate 36 in the sliding process, and the damage caused by pre-cooling of the stainless steel product is reduced through rotary extrusion, meanwhile, the adaptive extrusion roller 34 and the extrusion plate 35 work in a matching manner to pre-cold-draw and stretch the stainless steel product, after the pre-cold-draw and stretch is finished, the multi-layer extrusion cover 20 performs multiple times of extrusion and stretching on the stainless steel product after the pre-cold-draw and stretch, so that the stainless steel product undergoes layer-by-layer extrusion and stretching before final cold-draw, the difference between the diameter of the cold-draw die 21 and the diameter of the stainless steel product is reduced, finally the stainless steel product passes through the cold-draw die 21, the stainless steel product is pulled to start final cold-draw operation, the stainless steel product after cold-draw passes through the heating frame 12, the temperature of the stainless steel product after cold-draw and stretch is low and easy to deform, the heating frame 12 is heated by the electric heating pipe 22, heat is transferred to the surface of the stainless steel product through the heat conduction plate 38, so that the stainless steel product rapidly rises to the original temperature, the probability of deformation is reduced, and meanwhile, the stainless steel product after cold-draw is attached to the heat conduction plate 38 in the process of drawing, the heat conducting plate 38 plays a role in polishing the stainless steel product while transferring heat, ensures that the surface of the stainless steel product after cold drawing is smooth, and has higher use value than the stainless steel product before cold drawing.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.