Double-bend withdrawal and straightening machine

Abstract

The utility model discloses a double-bend withdrawal and straightening machine, which relates to the technical field of steel strip sheet bending and straightening equipment and comprises a base, the top of the base is sequentially connected with a first support roller, a first bending roller group, a second bending roller group, a second support roller and a straightening roller group from left to right, and both the first bending roller group and the second bending roller group comprise bending rollers. During use, the cavity reserved between the outer peripheral surface of the shaft core and the inner side wall of the roller sleeve is matched with the first water hole and the second water hole to circularly feed cooling water into the cavity, so that the cooling water circularly contacts with the inner side wall of the roller sleeve for heat exchange, and the roller sleeve is effectively cooled; and through the multiple overflow holes annularly formed in the water retaining ring, all cooling water can completely participate in circular flow, so that it is guaranteed that the cooling water can be fully filtered, purified and cooled, it is guaranteed that the cooling system can normally work for a long time, and the reliability and practicability of the equipment are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel strip and thin plate bending and straightening equipment, in particular to a double-bend straightening machine. Background Art

[0002] The double-bend straightening machine is a steel strip bending and straightening equipment consisting of two sets of bending roller assemblies and straightening roller assemblies. It can bend and straighten steel strip sheets, completely eliminating the wave edge, wave shape, scoop and slight sickle bend on the strip surface, thereby effectively improving the straightness of the steel strip sheet.

[0003] The bending roller in the bending roller assembly will directly contact the strip surface or plate surface and extrude it with great force. During the extrusion process, a large amount of heat will be generated due to the friction between the two. When the roller sleeve of the bending roller accumulates a large amount of heat and the temperature rises, it may affect the effect of the bending process and cause damage to the roller sleeve of the bending roller. Therefore, the roller sleeve of the bending roller needs to be cooled.

[0004] The Chinese invention patent with patent application number CN202310777494.3 records the roller structure of the straightening machine, which sends cooling water into the water trough through the provided scattering water holes, and then the cooling water fills the entire space between the inner wall of the roller sleeve and the outer peripheral surface of the mandrel through the water passage, so that the roller sleeve can be cooled. However, in the above roller structure, since the space formed between the inner wall of the roller sleeve and the outer peripheral surface of the mandrel is an annular space, when the cooling water enters and exits the space, it will flow to the lower half of the annular space under the action of gravity, and then when the cooling water level is not higher than the top of the mandrel, the cooling water cannot be discharged through the water hole at the other end, so the cooling water cannot circulate, and the water volume is small, so the cooling effect of the circulating cooling system is poor when it is just started. It is often necessary to start the circulating cooling system first until the annular space is filled with cooling water to achieve the maximum cooling effect. The startup is slow, and when the cooling water needs to be discharged, some cooling water will always remain in the annular space and cannot be discharged, thereby reducing the cooling reliability and practicality of the roller. Utility Model Content

[0005] The purpose of the present application is to provide a double-bend tension straightening machine to solve the problem in the above-mentioned background technology that the cooling system in the roller starts up slowly and part of the cooling water is always retained in the annular space and cannot be drained, thereby reducing the cooling reliability and practicality of the roller.

[0006] To achieve the above-mentioned objectives, the present application provides the following technical solutions: a double-bend straightening machine, comprising a base, with a first support roller, a first bending roller group, a second bending roller group, a second support roller and a straightening roller group connected to the top of the base in sequence from left to right, the first bending roller group and the second bending roller group both comprising bending rollers, the bending rollers comprising an axis core, a first end plate being fixedly sleeved on the outer circumference of the axis core, a roller sleeve being movably inserted on the side surface of the first end plate through a plurality of limiting rods and limiting holes, a cavity being left between the outer circumference of the axis core and the inner wall of the roller sleeve, a second end plate being threadedly sleeved on the outer circumference of the axis core, the second end plate being fixedly connected to one end of the roller sleeve by bolts, two hollow rotating tubes being symmetrically fixedly connected to the sides away from the first end plate and the second end plate, and also comprising a cooling assembly arranged on the axis core.

[0007] Preferably, the cooling component includes first water holes symmetrically opened at both ends of the shaft core, a plurality of second water holes are opened in a ring shape at equal angles on the inner walls of the two first water holes, the other ends of the second water holes penetrate the shaft core and are connected to the cavity, the cooling component also includes a plurality of water retaining rings equidistantly connected to the inner wall of the roller sleeve, a sealing ring is provided between the inner wall of the water retaining ring and the outer peripheral surface of the shaft core, and a plurality of overflow holes are opened in a ring shape at equal angles on the side surface of the water retaining ring. The advantage of such an arrangement is that the cooling water in the cavity can be completely discharged through the plurality of overflow holes distributed in a ring shape, thereby preventing the cooling water from being retained for a long time, ensuring that the cooling water can be fully circulated and filtered and purified, maintaining the stable and reliable long-term operation of the cooling circulation system, and improving the reliability and practicality of the equipment.

[0008] Preferably, it also includes a diversion component arranged on the roller sleeve for separating the water sprayed from different second water holes, the diversion component includes multiple groups of water retaining strips respectively arranged between the side walls of two adjacent water retaining rings, each group of two adjacent water retaining strips cooperates with the inner side wall of the roller sleeve, the outer peripheral surface of the shaft core and the sealing ring to form an overflow groove, each group of multiple water retaining strips are fixedly connected to the inner side wall of the roller sleeve in a ring-shaped and equiangular manner, and the multiple overflow holes on each water retaining ring are respectively connected to the adjacent multiple overflow grooves, and the overflow holes are connected to or close to the inner wall of the roller sleeve. The advantage of such a setting is that the water sprayed from each second water hole can be temporarily separated, thereby ensuring that even when the cooling system is just started, the cooling water can fully contact and exchange heat with the inner side wall of the roller sleeve, so that the cooling system of the equipment starts up quickly, further improving the reliability of the cooling system of the equipment.

[0009] Preferably, the two groups of water retaining strips on the two sides of each water retaining ring are staggered. The advantage of such an arrangement is that the cooling water flowing in the cavity can have more diverse flow channels, thereby further improving the contact between the cooling water and the inner wall of the roller sleeve, greatly improving the cooling effect of the equipment on the roller sleeve.

[0010] Preferably, the diversion assembly also includes a water passage cavity opened on the side wall of the water retaining bar, and the distance between the inner side surface of the water passage cavity away from the shaft core and the inner side wall of the roller sleeve is not less than one third of the height of the water retaining bar. The advantage of such an arrangement is that the cooling water can circulate in an annular cavity, thereby maximizing the contact between the cooling water and the inner side wall of the roller sleeve and improving the cooling effect on the roller sleeve.

[0011] In summary, the technical effects and advantages of the utility model are:

[0012] 1. In the utility model, the cooling water is circulated into the cavity by cooperating with the first water hole and the second water hole through the cavity left between the outer peripheral surface of the shaft core and the inner wall of the roller sleeve, so that the cooling water circulation can be in contact with the inner wall of the roller sleeve for heat exchange, so as to effectively cool the roller sleeve, and through the multiple overflow holes arranged in an annular shape on the water retaining ring, all the cooling water can be thoroughly involved in the circulation flow, so as to ensure that the cooling water can be fully filtered, purified and cooled, and the cooling system can work normally for a long time, thereby improving the reliability and practicality of the equipment.

[0013] 2. In the utility model, by setting staggered water retaining strips and water passage cavities on the sides of the water retaining strips, the cooling water has more diverse flow paths in the annular cavity, so that the cooling water can more fully contact and exchange heat with the inner wall of the roller sleeve, further improving the cooling effect of the equipment on the roller sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 This is a front view of a double-bend straightening machine in an embodiment of the present application;

[0016] Figure 2 This is a schematic diagram of the structure of the bending roller in the embodiment of the present application;

[0017] Figure 3 This is a first structural schematic diagram of the shaft core in an embodiment of the present application;

[0018] Figure 4 This is a second structural schematic diagram of the shaft core in the embodiment of the present application;

[0019] Figure 5 This is a schematic diagram of the structure of the roller sleeve in the embodiment of the present application;

[0020] Figure 6 In the embodiment of this application Figure 5 A magnified schematic diagram of center A.

[0021] In the figure: 1. base; 2. first support roller; 3. first bending roller group; 4. second bending roller group; 5. second support roller; 6. straightening roller group; 7. bending roller; 71. shaft core; 72. first end plate; 73. limit rod; 74. roller sleeve; 75. second end plate; 76. hollow rotating tube; 8. cooling assembly; 81. first water hole; 82. second water hole; 83. water retaining ring; 84. overflow hole; 9. diversion assembly; 91. water retaining strip; 92. water passage cavity. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1: Reference Figure 1-6 A double-bend straightening machine shown in the figure includes a base 1, and the top of the base 1 is connected with a first supporting roller 2, a first bending roller group 3, a second bending roller group 4, a second supporting roller 5 and a straightening roller group 6 in sequence from left to right. The first bending roller group 3 and the second bending roller group 4 both include a bending roller 7, and the bending roller 7 includes an axis core 71. A first end plate 72 is fixedly sleeved on the outer circumference of the axis core 71, and a roller sleeve 74 is movably inserted on the side of the first end plate 72 through a plurality of limiting rods 73 and limiting holes. A cavity is left between the outer circumference of the axis core 71 and the inner wall of the roller sleeve 74, and a second end plate 75 is threadedly sleeved on the outer circumference of the axis core 71. The second end plate 75 is fixedly connected to one end of the roller sleeve 74 by bolts, and two hollow rotating tubes 76 are symmetrically fixedly connected to the sides away from the first end plate 72 and the second end plate 75, and also includes a cooling component 8 arranged on the axis core 71.

[0024] refer to Figure 2-6 The cooling assembly 8 includes first water holes 81 symmetrically opened at both ends of the shaft core 71, and multiple second water holes 82 are opened in a ring shape at equal angles on the inner walls of the two first water holes 81. The other end of the second water hole 82 passes through the shaft core 71 and is connected to the cavity. The cooling assembly 8 also includes multiple water retaining rings 83 equidistantly connected to the inner wall of the roller sleeve 74, a sealing ring is provided between the inner wall of the water retaining ring 83 and the outer peripheral surface of the shaft core 71, and multiple overflow holes 84 are opened in a ring shape at equal angles on the side of the water retaining ring 83.

[0025] Specifically, by setting up a plurality of overflow holes 84 distributed in an annular shape, it is possible to ensure that the cooling water in the cavity can be completely discharged, thereby preventing the cooling water from being retained for a long time, ensuring that the cooling water can be fully circulated and filtered and purified, maintaining the cooling circulation system to operate stably and reliably for a long time, and improving the reliability and practicality of the equipment.

[0026] refer to Figure 5 and Figure 6 , and also includes a diverter assembly 9 arranged on the roller sleeve 74 for separating the water sprayed from different second water holes 82. The diverter assembly 9 includes multiple groups of water retaining strips 91 respectively arranged between the side walls of two adjacent water retaining rings 83. Each group of two adjacent water retaining strips 91 cooperates with the inner wall of the roller sleeve 74, the outer peripheral surface of the shaft core 71 and the sealing ring to form an overflow groove. Each group of multiple water retaining strips 91 is fixedly connected to the inner wall of the roller sleeve 74 in an annular shape with equal angles. The multiple overflow holes 84 on each water retaining ring 83 are respectively connected to the adjacent multiple overflow grooves, and the overflow holes 84 are connected to or close to the inner wall of the roller sleeve 74.

[0027] Specifically, the water sprayed from each second water hole 82 can be temporarily separated, thereby ensuring that even when the cooling system is just started, the cooling water can fully contact and exchange heat with the inner wall of the roller sleeve 74, so that the cooling system of the equipment can start up quickly and take effect, further improving the reliability of the cooling system of the equipment.

[0028] refer to Figure 5 and 6 The two groups of water retaining strips 91 on the two sides of each water retaining ring 83 are arranged alternately.

[0029] Specifically, the cooling water that can circulate in the cavity has more diverse flow channels, thereby further improving the contact sufficiency between the cooling water and the inner wall of the roller sleeve 74 , and greatly improving the cooling effect of the equipment on the roller sleeve 74 .

[0030] refer to Figure 6 The diversion component 9 also includes a water passage cavity 92 opened on the side wall of the water retaining bar 91 , and the distance between the inner side surface of the water passage cavity 92 away from the shaft core 71 and the inner side wall of the roller sleeve 74 is not less than one third of the height of the water retaining bar 91 .

[0031] Specifically, the cooling water can circulate in the annular cavity in an annular direction, thereby maximizing the contact between the cooling water and the inner wall of the roller sleeve 74 and improving the cooling effect on the roller sleeve 74 .

[0032] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A double-bend straightening machine, comprising a base (1), the top of the base (1) being connected with a first support roller (2), a first bending roller group (3), a second bending roller group (4), a second support roller (5) and a straightening roller group (6) in sequence from left to right, characterized in that: The first bending roller group (3) and the second bending roller group (4) both comprise bending rollers (7), wherein the bending rollers (7) comprise an axis core (71), a first end plate (72) being fixedly sleeved on the outer circumference of the axis core (71), a roller sleeve (74) being movably inserted on the side surface of the first end plate (72) via a plurality of limiting rods (73) and limiting holes, a cavity being left between the outer circumference of the axis core (71) and the inner wall of the roller sleeve (74), a second end plate (75) being threadedly sleeved on the outer circumference of the axis core (71), the second end plate (75) being fixedly connected to one end of the roller sleeve (74) via bolts, two hollow rotating tubes (76) being symmetrically fixedly connected to the sides away from each other of the first end plate (72) and the second end plate (75), and a cooling component (8) being arranged on the axis core (71).

2. A double-bend straightening machine according to claim 1, characterized in that: The cooling component (8) comprises first water holes (81) symmetrically arranged at both ends of the shaft core (71), a plurality of second water holes (82) are arranged in a ring shape at equal angles on the inner side walls of the two first water holes (81), the other end of the second water hole (82) passes through the shaft core (71) and is connected to the cavity, the cooling component (8) further comprises a plurality of water retaining rings (83) equidistantly connected to the inner side wall of the roller sleeve (74), a sealing ring is arranged between the inner side wall of the water retaining ring (83) and the outer peripheral surface of the shaft core (71), and a plurality of overflow holes (84) are arranged in a ring shape at equal angles on the side surface of the water retaining ring (83).

3. A double-bend straightening machine according to claim 2, characterized in that: It also includes a flow diversion component (9) disposed on the roller sleeve (74) for separating water sprayed from different second water holes (82), the flow diversion component (9) including a plurality of groups of water retaining strips (91) respectively disposed between the side walls of two adjacent water retaining rings (83), each group of two adjacent water retaining strips (91) cooperate with the inner side wall of the roller sleeve (74), the outer peripheral surface of the shaft core (71) and the sealing ring to form an overflow groove, each group of a plurality of the water retaining strips (91) are fixedly connected to the inner side wall of the roller sleeve (74) in an annular shape at equal angles, the plurality of overflow holes (84) on each of the water retaining rings (83) are respectively connected to a plurality of adjacent overflow grooves, and the overflow holes (84) are connected to or close to the inner wall of the roller sleeve (74).

4. A double-bend tension and straightening machine according to claim 3, characterized in that: The two groups of water retaining strips (91) on the two sides of each water retaining ring (83) are arranged in a staggered manner.

5. A double-bend straightening machine according to claim 4, characterized in that: The flow diversion component (9) further comprises a water passage cavity (92) formed on the side wall of the water retaining strip (91), wherein the distance between the inner side surface of the water passage cavity (92) away from the shaft core (71) and the inner side wall of the roller sleeve (74) is not less than one third of the height of the water retaining strip (91).

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