High-precision roller mechanism

Abstract

The utility model provides a high-precision roller mechanism, which relates to the field of roller systems, and comprises a rack and two roller components arranged in the rack and used for extruding advancing steel wires, and each roller component comprises a shaft and a fixing part used for supporting the shaft. The shaft is provided with a roller used for making contact with a steel wire, the fixing part comprises a roller base arranged in the rack, and two bearings which are arranged side by side and completely sleeve the shaft are arranged in the roller base. A groove with the size larger than that of a bearing is formed in the roller seat, a bearing sleeve is installed in the groove, one bearing is sleeved with the bearing sleeve, the bearing sleeve is further provided with a threaded hole, and a jackscrew is inserted into the threaded hole. And the other side-by-side bearing is not processed, so that the two bearings are staggered during stress, the roller shaft is tightly clamped, the roller shaft is kept static up and down, the gap of the bearings is eliminated, and the machining precision of the steel wire is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a roller system field especially relates to a high accuracy roller mechanism. BACKGROUND

[0002] Figure 1 The roller mechanism shown mainly comprises a frame, a roller, a roller seat and a bearing, wherein the roller, the roller seat and the bearing are an entirety, Figure 1 There are two said entireties in total, one above and one below (see the front view). Two sets of bearings are installed in the roller seat, and the roller shaft is sleeved in the bearings (see the enlarged view). When processing the steel wire, the upper roller system is moved downward relative to the lower roller system by rotating the threaded rod, so as to exert downward pressure on the steel wire, and the steel wire is flattened. When processing, the roller in the upper roller system is subjected to the reaction force of the steel wire, so that the upper part of the bearing is subjected to the greatest force, and the lower part is almost not subjected to force, and the lower roller system is the same. Due to manufacturing errors, the bearing itself has a certain gap, and the gap will cause the virtual rotation axis of the roller shaft to deviate, so that the entire roller mechanism will vibrate after the equipment is started, and combined with the size error of the steel wire itself, the two are combined, which seriously affects the size accuracy of the flattened steel wire. SUMMARY

[0003] The utility model discloses a high accuracy roller mechanism to solve the technical problem that the bearing clearance itself causes the vibration of the roller mechanism, and even the huge processing error.

[0004] The utility model discloses a high accuracy roller mechanism to solve the technical problem that the bearing clearance itself causes the vibration of the roller mechanism, and even the huge processing error.

[0005] A high accuracy roller mechanism comprises a frame and two roller assemblies arranged in the frame for extruding the advancing steel wire, and the roller assembly comprises a shaft and a fixing part for supporting the shaft.

[0006] The shaft has a roller for contacting the steel wire, and the fixing part comprises a roller seat arranged in the frame, and the roller seat has two bearings sleeved around the shaft.

[0007] The roller seat has a groove with a size greater than that of the bearing, and a bearing sleeve is arranged in the groove, the bearing sleeve sleeving one of the bearings, and the bearing sleeve has a threaded hole, a jack is inserted into the threaded hole, the bearing sleeved by the bearing sleeve is located in the moving path of the jack, and when the jack is screwed, the bearing is pressed based on the jack, so that the bearing and the other bearing are staggered to eliminate the gap between the bearings.

[0008] Preferably, one of the roller assemblies can move in the frame, and the other roller assembly is fixed in the frame.

[0009] Preferably, the two roller assemblies have a spring, and the spring is located in an area that does not interfere with the advancing of the steel wire.

[0010] Preferably, the structure for driving the movement of the roll assembly is a screw rod, which is threaded into the frame. The end of the screw rod has a circular tile-shaped block that contacts the roll assembly. When the screw rod is turned, the roll assembly moves closer to or away from the roll assembly fixed in the frame based on the spring engagement.

[0011] Preferably, the outer configuration of the bearing sleeve is rectangular, and the bearing sleeve does not axially deflect when it enters the groove in the roll holder.

[0012] Preferably, it also includes a cover plate, which covers the end of the roll holder and presses against the bearing sleeve.

[0013] The beneficial effects of this utility model are:

[0014] This invention uses a set screw to push the bearing sleeve to move, adjusting the force on the bearing in the bearing sleeve during movement. In addition, the other bearing in the same row is not treated. In this way, the two bearings will be staggered under force, thus tightly clamping the roll shaft and keeping it stationary, eliminating the gap in the bearing itself, and further improving the processing accuracy of the steel wire. Attached Figure Description

[0015] Figure 1 A schematic diagram of the existing rolling mill mechanism;

[0016] Figure 2 This is a side view of a high-precision rolling mill mechanism.

[0017] Figure 3 for Figure 2 The front view of the high-precision rolling mill mechanism shown;

[0018] Figure 4 for Figure 3 Enlarged view of the location of the bearing housing;

[0019] Reference numerals in the attached drawings: 1. Frame; 2. First roll holder; 3. First bearing; 4. First shaft; 5. First roll; 6. First bearing sleeve; 7. First bolt; 8. First set screw; 9. Spring; 10. Circular tile block; 11. Screw rod; 12. Second roll holder; 13. Second bearing; 14. Second shaft; 15. Second roll; 16. Second bearing sleeve; 17. Second bolt; 18. Second set screw; 19. First cover plate; 20. Second cover plate. Detailed Implementation

[0020] For the purpose of facilitating the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The preferred embodiments of the present application are shown in the drawings. However, the present application can be realized in many different forms and should not be limited to the embodiments described herein. On the contrary, these embodiments are provided so that the disclosure of the present application can be more thoroughly and completely understood.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application.

[0022] The specific embodiments of the present application will be described below with reference to the accompanying drawings.

[0023] Embodiment 1

[0024] In this embodiment, a high-precision roller mechanism is proposed, please refer to Figure 1 and Figures 2-4 , the high-precision roller mechanism frame 1 and two roller assemblies arranged in the frame 1 for extruding the advancing steel wire. Further, the two roller assemblies are a first roller assembly located at a high position and a second roller assembly located at a low position. Further, the first roller assembly includes a first shaft 4, and two first fixing parts arranged in the frame 1 for positioning the first shaft 4. It should be noted that the first shaft 4 has a first roller 5 for contacting the steel wire. The above-mentioned first fixing part includes a first roller seat 2 arranged in the frame 1, and the first roller seat 2 has two first bearings 3 which are side by side and all enclose the first shaft 4. Different from the previous fixing part, in this embodiment, the first roller seat 2 has a groove with a size larger than that of the first bearing 3, and the groove is preferably a rectangular groove, and a first bearing sleeve 6 matching the shape of the groove is arranged in the groove, the first bearing sleeve 6 only encloses one first bearing 3, in addition, the first bearing sleeve 6 has a threaded hole, and the first jack 8 is screwed into the threaded hole. It should be noted that the first bearing 3 encircled by the first bearing sleeve 6 is located in the movement path of the first jack 8, so that when the first jack 8 is screwed, the first jack 8 can extrude the first bearing 3, so that the extruded first bearing 3 is staggered with the other first bearing 3, thereby eliminating the gap of the first bearing 3.

[0025] Please refer to Figure 2 and Figure 3The second roller assembly comprises a second shaft 14 and two second fixing parts arranged in the frame 1 for positioning the second shaft 14. It is to be noted that the second shaft 14 has a second roller 15 which is opposite to the first roller 5, and the gap between the first roller 5 and the second roller 15 is used for extruding the steel wire. The two second fixing parts comprise a second roller seat 12 arranged in the frame 1, and the second roller seat 12 has two second bearings 13 which are side by side and all enclose the second shaft 14. The second roller seat 12 has a slot which is larger than the size of the second bearing 13, and the slot is preferably a rectangular slot. A second bearing sleeve 16 which is matched with the slot is arranged in the slot, and the second bearing sleeve 16 only encloses one second bearing 13. In addition, the second bearing sleeve 16 has a threaded hole in which a second jack screw 18 is screwed. It is to be noted that the second bearing 13 which is enclosed by the second bearing sleeve 16 is located in the moving path of the second jack screw 18. Thus, when the second jack screw 18 is screwed, the second jack screw 18 can extrude the second bearing 13, so that the extruded second bearing 13 is staggered with the other second bearing 13 which is side by side, thereby eliminating the gap of the second bearing 13.

[0026] It is to be noted that the gap between the first roller 5 and the second roller 15 is used for extruding the steel wire. Further, the gap between the first roller 5 and the second roller 15 can be adjusted. In the embodiment, the first roller assembly can move relative to the frame 1, and during the movement, the gap between the first roller 5 and the second roller 15 is reduced or increased. Specifically, two screw rods 11 are arranged in the frame 1, and the two screw rods 11 correspond to the two first roller seats 2 respectively. It is to be noted that the screw rod 11 is threadedly connected with the frame 1, and a circular tile type block 10 is arranged at the end of the screw rod 11 which is close to the first roller seat 2. In addition, a spring 9 is arranged between the first roller seat 2 and the second roller seat 12. Thus, based on the cooperation between the above-mentioned structures, the gap between the first roller 5 and the second roller 15 can be adjusted by screwing the screw rod 11. Please refer to Figure 2 and Figure 3 In the embodiment, a cover plate is also arranged, and the cover plate comprises a first cover plate 19 corresponding to the first roller seat 2 and a second cover plate 20 corresponding to the second roller seat 12. It is to be noted that the first cover plate 19 is arranged at the end of the first roller seat 2 and contacts the first bearing sleeve 6, and the second cover plate 20 is arranged at the end of the second roller seat 12 and contacts the second bearing sleeve 16. Further, a first bolt 7 is arranged to fix the first cover plate 19 at the end of the first roller seat 2, and a second bolt 17 is arranged to fix the second cover plate 20 at the end of the second roller seat 12.

[0027] Any combination of the technical features in the above-described embodiments can be made, and for the sake of brevity, not all possible combinations are described, however, as long as the combination of the technical features does not exist in contradiction, it shall be considered as the scope of the description.

[0028] The above-described embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but it cannot be understood as the limitation of the utility model patent scope. It should be pointed out that for ordinary skilled person in the art, under the premise of not departing from the utility model concept, a number of modifications and improvements can be made, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. A high precision roll mechanism comprising a frame and two roll assemblies arranged in the frame for extruding a running wire, the roll assemblies comprising a shaft and a stationary part for supporting the shaft, wherein The shaft has a roller for contacting the steel wire, the fixed part comprises a roller seat arranged in the frame, the roller seat has two bearings in parallel and all embracing the shaft, characterized in that the roller seat has a groove with a size larger than that of the bearings, a bearing sleeve is arranged in the groove, the bearing sleeve embraces one of the bearings, the bearing sleeve has a threaded hole, a jack screw is inserted into the threaded hole, the bearing embraced by the bearing sleeve is located in the moving path of the jack screw, when the jack screw is screwed, the bearing is pressed based on the jack screw, so that the bearing is staggered with the other bearing to eliminate the gap between the bearings.

2. A high precision roll mechanism according to claim 1, characterized in that: One of the roller assemblies is movable in the frame, and the other roller assembly is fixed in the frame.

3. A high precision roll mechanism according to claim 2, wherein: The spring is located in an area that does not interfere with the movement of the steel wire.

4. A high precision roll mechanism according to claim 3, wherein: The structure for driving the movement of the roller assembly is a screw rod, the screw rod is screwed with the frame, the end of the screw rod has a round tile block, the round tile block contacts the roller assembly, when the screw rod is screwed, the roller assembly is moved close to or away from the roller assembly fixed in the frame based on the spring cooperation.

5. A high precision roll mechanism according to claim 1, wherein: The outer configuration of the bearing sleeve is rectangular, and the bearing sleeve enters the groove in the roller seat without axial deflection.

6. A high precision roll mechanism according to claim 5, wherein: A cover plate is further included, which covers the end of the roller seat and presses the bearing sleeve.

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