Roundness normalizing die used before peeling of metal bar

Abstract

The utility model discloses a roundness regularizing mould before peeling of a metal bar, which comprises a tubular shell, a gap adjusting tube, a mounting mould and a regularizing mould, the mounting mould is tubular, an annular partition plate fixedly connected with the mounting mould is arranged in the mounting mould, the regularizing mould is tubular, the inner wall of the regularizing mould is arc-shaped, and the gap adjusting tube is arranged in the gap adjusting tube. The regulating mold is in threaded connection with the inner wall of the mounting mold, the end, not connected with the regulating mold, of the mounting mold is in threaded connection with the inner wall of the gap adjusting pipe, and the end, connected with the mounting mold, of the gap adjusting pipe is detachably connected to the inner wall of the tubular shell. The roundness of the bar is neatened again through the neatening die, after the roundness of the oval bar is changed, the peeling allowance is reduced, abrasion of a cutting tool is reduced, meanwhile, cut waste materials are reduced, the utilization rate of the bar is indirectly improved, and the cutting cost of the bar is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to bar processing technical field, especially a kind of metal bar peeling front roundness regular mould. BACKGROUND

[0002] The surface of special steel or alloy blank after hot rolling is seriously oxidized and has cracks, scratches, folding and other defects on the surface, which need to be removed by peeling machine, and the original material precision of the bar is low due to the peeling process. Due to the above reasons, some bars are actually elliptical in cross section. Compared with the bar with high roundness, the waste generated during peeling is significantly more. Considering that the special steel bar itself has high value, the more the peeling allowance, the lower the utilization rate of the bar itself, and the higher the production cost.

[0003] Therefore, there is an urgent need for a metal bar peeling front roundness regular mould to solve the above problems. SUMMARY

[0004] The utility model discloses a kind of metal bar peeling front roundness regular mould to solve the above problems.

[0005] To achieve the above object, the utility model adopts the following technical scheme: a kind of metal bar peeling front roundness regular mould, comprising:

[0006] Tubular shell, gap adjusting pipe, installation mould and regular mould, installation mould is tubular, and its inner wall is fixedly connected with annular partition plate, regular mould is tubular, its inner wall is arc-shaped, and regular mould is connected with the inner wall of installation mould by screw thread, one end of installation mould is not connected with regular mould and is connected with the inner wall of gap adjusting pipe by screw thread, and one end of gap adjusting pipe and installation mould is detachably connected with the inner wall of tubular shell.

[0007] Preferably, gap adjusting pipe is provided with a straightening pipe matched therewith, and the straightening pipe is provided with a probe-in inner pipe fixedly connected with one end thereof close to installation mould, the probe-in inner pipe is located at one end of installation mould away from regular mould, and the straightening pipe is connected with the inner wall of gap adjusting pipe by screw thread.

[0008] Preferably, the inner hole diameter of the straightening pipe is the same as the inner hole diameter of the feeding end of the regular mould.

[0009] Preferably, installation mould is provided with a plurality of convex penetrating holes at one end close to regular mould, the convex penetrating holes are provided with a locking assembly matched therewith, the locking assembly comprises a locking rod, a spring and an arc-shaped pressing head, one end of the locking rod is in contact with regular mould by penetrating the convex penetrating hole and spring, the other end is fixedly connected with the arc-shaped pressing head, the spring is located in the convex penetrating hole, one end thereof is fixedly connected with the convex penetrating hole, and the other end is fixedly connected with the arc-shaped pressing head.

[0010] Preferably, the locking rod is provided with a plurality of protrusions at the end in contact with the sizing die, and the sizing die is provided with a plurality of pits matching the protrusions on the curved sidewall.

[0011] Preferably, the sizing die is provided with a cooling pipe matching the sizing die, the cooling pipe is screw-connected to the discharging end of the sizing die, the cooling pipe is provided with a spiral water cooling groove, and the spiral water cooling groove is provided with an inlet pipe and an outlet pipe at two ends respectively.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The roundness of the bar is re-sized by the sizing die, the roundness of the oval bar is changed, the skinning allowance is reduced, the wear of the cutting tool is reduced, the waste material cut off is reduced, the utilization rate of the bar is indirectly improved, and the cost of cutting the bar is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole cross-section structure schematic view of a metal bar skinning roundness sizing die;

[0015] Figure 2 It is a cross-section structure schematic view of a locking assembly in the second embodiment of the utility model;

[0016] Figure 3 It is an enlarged structure schematic view of A in the second embodiment of the utility model; Figure 2

[0017] Figure 4 It is a cross-section structure schematic view of the contact between the locking rod and the sizing die in the second embodiment of the utility model;

[0018] Figure 5 It is a cross-section structure schematic view of the cooling pipe in the third embodiment of the utility model.

[0019] In the figure: 1, tubular shell; 2, gap adjusting pipe; 20, straightening pipe; 21, probe into inner pipe; 3, installation die; 30, annular partition plate; 31, convex penetrating hole; 4, sizing die; 40, pit; 41, cooling pipe; 410, spiral water cooling groove; 411, inlet pipe; 412, outlet pipe; 5, locking assembly; 50, locking rod; 500, protrusion; 51, spring; 52, arc pressing head. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0021] Embodiment one ​

[0022] Please refer to the attached drawings Figure 1

[0023] The tubular shell 1, the gap adjusting pipe 2, the mounting die 3 and the sizing die 4, the mounting die 3 is tubular, and the annular partition plate 30 is fixedly connected to the mounting die 3, the sizing die 4 is tubular, the inner wall of the sizing die 4 is arc-shaped, and the sizing die 4 is threadedly connected to the inner wall of the mounting die 3, one end of the mounting die 3 not connected to the sizing die 4 is threadedly connected to the inner wall of the gap adjusting pipe 2, and one end of the gap adjusting pipe 2 connected to the mounting die 3 is detachably connected to the inner wall of the tubular shell 1.

[0024] Before use, the tubular shell 1 is fixed to a fixed body, the sizing die 4 is first threadedly connected to the discharging end of the mounting die 3, then the feeding end of the mounting die 3 is threadedly connected to the gap adjusting pipe 2, and finally the gap adjusting pipe 2 is connected to the tubular shell 1, in the present application, the positioning of the gap adjusting pipe 2 is completed by the design of the boss, and in actual application, a positioning assembly can be arranged on the tubular shell 1 to position the gap adjusting pipe 2.

[0025] In use, the pipe material enters the feeding end of the sizing die 4, and because the inner diameters of the feeding end and the discharging end of the sizing die 4 are different, the elliptical pipe material tends to be a circle after passing through the sizing die 4 under the action of the external force, and the peeling allowance of the circular bar is reduced, so that the cutting is more efficient and the waste is less in the peeling process, and the utilization rate of the bar is higher.

[0026] Specifically, the gap adjusting pipe 2 is provided with a straightening pipe 20 matched therewith, the straightening pipe 20 is provided with a probe inner pipe 21 fixedly connected to one end of the straightening pipe 20, the probe inner pipe 21 is located at one end of the mounting die 3 away from the sizing die 4, and the straightening pipe 20 is threadedly connected to the inner wall of the gap adjusting pipe 2.

[0027] Specifically, the inner hole diameter of the straightening pipe 20 is the same as the inner hole diameter of the feeding end of the sizing die 4.

[0028] Considering that the bar itself may have a certain arc in actual application, it is obvious that the bar with the arc is more difficult to be sized, and the sizing effect is not good, therefore, the straightening pipe 20 movably connected to the gap adjusting pipe 2 is arranged in front of the gap adjusting pipe 2, and the straightening of the bar is completed through the process of passing through the straightening pipe 20, it should be noted that, first, the straightening pipe 20 needs to have a certain length, and the specific length is determined according to the actual situation, and second, the straightening arc is limited, and for some bars with obvious arc that cannot be straightened through the straightening pipe 20, the straightening machine needs to be used for straightening.

[0029] Example two

[0030] Please refer to the attached drawings Figures 2-4

[0031] Specifically, the installation mold 3 is provided with a plurality of convex penetrating holes 31 near one end of the sizing mold 4, the convex penetrating holes 31 are provided with a matching locking assembly 5, the locking assembly 5 includes a locking rod 50, a spring 51 and an arc-shaped pressing head 52, one end of the locking rod 50 is in contact with the sizing mold 4 through the convex penetrating hole 31 and the spring 51, the other end is fixedly connected with the arc-shaped pressing head 52, and the spring 51 is located in the convex penetrating hole 31, one end of which is fixedly connected in the convex penetrating hole 31, and the other end is fixedly connected with the arc-shaped pressing head 52.

[0032] Specifically, the locking rod 50 is provided with a plurality of protrusions 500 at the end in contact with the sizing mold 4, and the curved side wall of the sizing mold 4 is provided with a plurality of recesses 40 matched with the protrusions 500.

[0033] Considering that in actual application, the friction between the bar and the sizing mold 4 is large during the sizing process, and the sizing mold 4 is connected with the installation mold 3 through threads, under the condition of large friction, the sizing mold 4 may be driven to slide, thereby causing damage to the sizing mold 4 and the installation mold 3, resulting in mold damage. Therefore, the convex penetrating hole 31 is arranged on the installation mold 3, and the locking assembly 5 is installed in the convex penetrating hole 31. During the installation process of the installation mold 3 and the gap adjusting pipe 2, the gap adjusting pipe 2 will gradually extrude the arc-shaped pressing head 52, thereby driving the locking rod 50 and the protrusions 500 at the front end of the locking rod 50 to contact the recesses 40 on the side wall of the sizing mold 4 through the arc-shaped pressing head 52, thereby increasing the fixing effect on the sizing mold 4. When the gap adjusting pipe 2 is removed, the arc-shaped pressing head 52 loses the extrusion of external force and moves away from the side wall of the sizing mold 4 under the reaction force of the spring 51, thereby releasing the locking of the sizing mold 4.

[0034] Example three

[0035] Please refer to the attached drawings Figure 5

[0036] The sizing mold 4 is provided with a matching cooling pipe 41, the cooling pipe 41 is threadedly connected to the discharge end of the sizing mold 4, the cooling pipe 41 is provided with a spiral water cooling groove 410, and the spiral water cooling groove 410 is provided with an inlet pipe 411 and an outlet pipe 412 at two ends respectively.

[0037] In view of the fact that the temperature of the position where the sizing die 4 contacts the bar is high due to the large friction between the bar and the sizing die 4 during the process of regulating the roundness of the bar, the bar is cooled at the natural temperature after being drawn out from the discharge end of the sizing die 4, while the temperature of the sizing die 4 itself cannot be reduced due to the continuous work, and therefore the cooling pipe 41 is arranged to contact the side wall of the sizing die 4 to conduct part of the temperature of the sizing die 4 to the cooling pipe 41, and then the cooling pipe 41 is used to complete the heat dissipation, and in order to further accelerate the heat dissipation effect of the cooling pipe 41, the spiral water cooling groove 410 is arranged in the cooling pipe 41, and the liquid inlet pipe 411 and the liquid outlet pipe 412 are used to accelerate the heat dissipation effect.

[0038] The above merely describes a preferred specific implementation of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art, according to the technical scheme and the inventive concept of the present application, can make equivalent replacements or changes within the technical range disclosed by the present application, which should be covered by the protection scope of the present application.

Claims

1. A die for regularizing the roundness of metal bars before peeling, characterized in that: include: A tubular shell (1), a gap adjustment tube (2), a mounting mold (3) and a regularization mold (4), wherein the mounting mold (3) is tubular and has an annular partition plate (30) fixedly connected thereto; the regularization mold (4) is tubular and has an arc-shaped inner wall; the regularization mold (4) is threadedly connected to the inner wall of the mounting mold (3); the end of the mounting mold (3) not connected to the regularization mold (4) is threadedly connected to the inner wall of the gap adjustment tube (2); and the end of the gap adjustment tube (2) connected to the mounting mold (3) is detachably connected to the inner wall of the tubular shell (1).

2. The die for regularizing the roundness of a metal bar before peeling according to claim 1, characterized in that: The gap adjustment tube (2) is provided with a straightening tube (20) matched therewith, and the straightening tube (20) is provided with an inner probe tube (21) fixedly connected therewith at one end close to the installation mold (3), and the inner probe tube (21) is located at the end of the installation mold (3) away from the regular mold (4), and the straightening tube (20) is threadedly connected to the inner wall of the gap adjustment tube (2).

3. The die for regularizing the roundness of a metal bar before peeling according to claim 2, characterized in that: The inner hole diameter of the straightening tube (20) is the same as the inner hole diameter of the feed end of the regularizing die (4).

4. The die for regularizing the roundness of a metal bar before peeling according to claim 1, characterized in that: The mounting mold (3) is provided with a plurality of convex through-holes (31) at one end close to the regular mold (4), and the convex through-holes (31) are provided with a locking assembly (5) matched therewith, and the locking assembly (5) comprises a locking rod (50), a spring (51) and an arc-shaped pressing head (52), one end of the locking rod (50) passes through the convex through-hole (31) and the spring (51) to contact the regular mold (4), and the other end is fixedly connected to the arc-shaped pressing head (52), and the spring (51) is located in the convex through-hole (31), one end of the spring (51) is fixedly connected to the convex through-hole (31), and the other end is fixedly connected to the arc-shaped pressing head (52).

5. The die for regularizing the roundness of a metal bar before peeling according to claim 4, characterized in that: The locking rod (50) is provided with a plurality of protrusions (500) at one end in contact with the regular mold (4), and a plurality of recesses (40) matching the protrusions (500) are provided on the curved side wall of the regular mold (4).

6. The die for regularizing the roundness of a metal bar before peeling according to claim 1, characterized in that: The regular mold (4) is provided with a cooling pipe (41) matched therewith, the cooling pipe (41) is threadedly connected to the discharge end of the regular mold (4), the cooling pipe (41) is provided with a spiral water cooling groove (410), and the two ends of the spiral water cooling groove (410) are respectively provided with a liquid inlet pipe (411) and a liquid outlet pipe (412).

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