Combined rolling guide and guard device capable of adjusting roller spacing

Abstract

The utility model belongs to the technical field of dies for rolling, and particularly discloses a combined rolling guide and guard device capable of adjusting roller spacing, which comprises a framework base body in modular design, the framework base body is mainly formed by connecting four integrally formed racks with wedge-shaped bases and adjusting cushion blocks in series, and the framework base body is fixedly connected through four groups of long screws. And the roller adjusting mechanisms with the same structures are arranged in the racks, and the eccentric shafts, the eccentric positioning blocks, the turbines, the worms, the weight pans and the like in the roller adjusting mechanisms are matched for use, so that the rollers can be accurately adjusted, and the guide and guard device can be universally used in the rolling process. According to the combined rolling guide and guard device, the modular splicing design is adopted, the overall structural strength is high, and maintenance and replacement are convenient; meanwhile, the combined rolling guide and guard device is small in occupied space, large in adjustment range and capable of fully utilizing the length of a roller body, shortening the pass adjustment time, improving the bar production efficiency and improving the finished product quality.

Description

Technical Field

[0001] The utility model belongs to the technical field of rolling dies, and in particular relates to a combined rolling guide device capable of adjusting the roller spacing. Background Art

[0002] The rolling mill guide is one of the key tools and dies for the production of wire rod rolling mills. It is mainly used in the input and output process of bar rolling production to support and guide the materials to prevent the materials from twisting due to changes in rolling force. For the rolling process of the same specification but different grades, the distance adjustment requirements for the guide rollers are intuitive and important. For the hole-free rolling procedure, the appropriateness of the distance of the guide rollers can directly determine whether the materials can pass smoothly.

[0003] Guides are divided into rolling guides and sliding guides. Compared with sliding guides, rolling guides are more stable and the distance between guide rollers can be easily adjusted, so they are more widely used. Figure 1 , 2 As shown, the structure is symmetrical, with bearings installed at both ends of the roller, the bearings are located on the connecting shaft, and positioning blocks and fixing screws are installed at the upper and lower parts of the connecting shaft to fix the rotating part on the base, and the rear part of the base is fixed by a set of long screws, and the adjustment wheel is located on the long screw. The distance between the base openings on both sides is adjusted by rotating the adjustment wheel, thereby driving the distance between the rollers. However, the existing rolling guide structure has the following disadvantages, which seriously affect the quality and production efficiency of rolled bars.

[0004] First, the existing structure is connected by a long screw. The single long screw has low strength and is easily deformed when impacted, which makes it impossible to effectively straighten the material, thus causing abnormal production shutdowns such as material dumping and material piling.

[0005] Second, the existing structure uses an inlet throat for material inlet, which is welded from trumpet-shaped steel plates. When the structure collides with the material, it is easy to deform and cannot effectively guide the material.

[0006] Third, the existing structure is a single-hole rolling guide, which occupies a large space and requires a longer distance between adjacent passes than a combined guide, which prolongs the pass adjustment time, affects production efficiency, and fails to fully utilize the length of the roller body.

[0007] In view of this, this utility model is proposed. Utility Model Content

[0008] The purpose of the utility model is to overcome the shortcomings of the above-mentioned prior art and provide a combined rolling guide device with adjustable roller spacing, which is mainly used to solve the problems that the existing single-hole rolling guide occupies a large space on the roller body, the stop and adjustment time during the rolling process is long, and the overall strength of the device is low; the combined rolling guide device of the utility model has the advantages of easy replacement, simple adjustment operation, and convenient maintenance.

[0009] The purpose of the utility model is to solve the problem through the following technical solutions:

[0010] The utility model provides a combined rolling guide device with adjustable roller spacing, comprising a skeleton base, wherein the skeleton base comprises a first frame, a second frame, a third frame and a fourth frame which are sequentially connected in series, and the first frame, the second frame, the third frame and the fourth frame are detachably connected, and a wedge-shaped base fixedly connected to a rolling mill guide beam is arranged at the bottom of each frame;

[0011] The first frame, the second frame, the third frame and the fourth frame are respectively provided with roller adjustment mechanisms of the same structure, which are used to adjust the distance between rollers installed between the first frame and the second frame and / or between the third frame and the fourth frame for conveying the rolled product.

[0012] Furthermore, four groups of through holes are symmetrically opened on both sides of the roller adjustment mechanism and located at the upper and lower positions of the first frame, the second frame, the third frame and the fourth frame, and four groups of screws pass through the through holes opened in the first frame, the second frame, the third frame and the fourth frame, and then the skeleton base is connected and fixed by nuts matching the screws.

[0013] Furthermore, the roller adjustment mechanism comprises a roller and an eccentric shaft rotatably arranged inside the roller, and the upper and lower parts of the eccentric shaft are respectively fixedly connected to eccentric positioning blocks arranged on the skeleton base;

[0014] Among them, a turbine is installed on the circumferential surface of the upper end of the eccentric shaft, and the turbine is connected to the weight plate through a worm, and the turbine is fixedly connected to the eccentric positioning block arranged on the upper part of the eccentric shaft, which is used to drive the worm by rotating the weight plate, and then the worm drives the turbine to rotate, and the turbine rotates with the eccentric shaft, and the eccentric distance of the roller center is adjusted by the eccentric distance of the eccentric shaft itself.

[0015] Furthermore, the eccentric positioning block can be customized and replaced according to different specifications of rolled materials. When the rolling procedure is changed, the roller distance can be adjusted by replacing the eccentric positioning block in conjunction with the eccentric shaft to achieve guiding.

[0016] Furthermore, the roller adjustment mechanism also includes locking nuts arranged at both ends of the eccentric shaft, and the locking nuts are used to prevent the eccentric shaft from generating longitudinal displacement.

[0017] Furthermore, a protective cover is provided above the locking nut at the top end of the eccentric shaft.

[0018] Furthermore, the roller is connected to the eccentric shaft via bearings arranged at upper and lower locations, and bearing blocks are respectively sleeved on the eccentric shaft and located outside the bearings.

[0019] Furthermore, the skeleton base also includes an adjustment pad disposed between the third frame and the fourth frame, and the center distance between the rollers on the third frame and the fourth frame is adjusted by the thickness of the adjustment pad.

[0020] Furthermore, the tops of the first frame and the fourth frame are both equipped with lifting rings, and the lifting rings are used to cooperate with the crane to install or disassemble the combined rolling guide device.

[0021] Furthermore, the first frame, the second frame, the third frame and the fourth frame are all integrally formed structures, and each frame is provided with an entrance with a smooth transition for free introduction.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] The combined rolling guide device provided by the utility model has four frames and adjustment pads in the skeleton matrix, which are all modularly designed. When the guide is damaged by steel piling, flash, etc. during the rolling process, it can be quickly replaced, which can greatly reduce the maintenance cost of the combined rolling guide device and save maintenance time; at the same time, the four frames and adjustment pads in the skeleton matrix are fixedly connected by four symmetrical groups of long screws, which can be closely arranged and kept relatively consistent with the hole position. Compared with the prior art of fixing a group of screws, the overall strength of the combined rolling guide device of the utility model can be greatly improved. In addition, the utility model can realize the roller adjustment function through the coordinated use of the eccentric shaft, eccentric positioning block, turbine, worm and weight plate in the roller adjustment mechanism, and can realize the universality of the guide in the rolling process, and realize the double-hole combined adjustment function, that is, one guide solves the problem of adjusting two hole types, thereby effectively improving the utilization rate of the roller, improving production efficiency, and improving the quality of the rolled material. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings herein are incorporated into and constitute a part of this specification, and together with the description, are used to explain the principles of the present utility model.

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0026] Figure 1 This is a schematic diagram of the existing rolling guide structure Figure 1 ;

[0027] Figure 2 This is a schematic diagram of the existing rolling guide structure Figure 2 ;

[0028] Figure 3 This is a schematic diagram of the overall structure of the combined rolling guide device of the utility model;

[0029] Figure 4 It is a schematic diagram of the overall structure of the other side of the combined rolling guide device of the utility model;

[0030] Figure 5 This is a schematic diagram of the top view of the combined rolling guide device of the utility model;

[0031] Figure 6 yes Figure 5 Middle AA section view.

[0032] in:

[0033] 1 is a skeleton base; 11 is a first frame; 12 is a second frame; 13 is a third frame; 14 is a fourth frame; 15 is an adjustment pad;

[0034] 2 is a roller adjustment mechanism; 20 is a roller; 21 is an eccentric shaft; 22 is an eccentric positioning block; 23 is a turbine; 24 is a worm; 25 is a weight plate; 26 is a locking nut; 27 is a nut protection cover; 28 is a bearing; 29 is a bearing stopper;

[0035] 3 is a screw;

[0036] 4 is a lifting ring. DETAILED DESCRIPTION

[0037] Here, exemplary embodiments will be described in detail, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the utility model. Instead, they are only examples of devices consistent with some aspects of the utility model as detailed in the attached claims.

[0038] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0039] See also Figures 3 to 6The utility model provides a combined rolling guide device with adjustable roller spacing, including a skeleton base 1, which adopts a modular design, and includes a first frame 11, a second frame 12, a third frame 13 and a fourth frame 14 connected in series in sequence, and the first frame 11, the second frame 12, the third frame 13 and the fourth frame 14 are detachably connected, and a wedge-shaped base fixedly connected to the rolling mill guide beam is provided at the bottom of each frame. Preferably, the wedge-shaped base and the corresponding frame are an integrally formed structure, and of course a separate structure can also be adopted, and connected as a whole by high-strength bolts.

[0040] The roller adjustment mechanisms 2 of the same structure are arranged inside the first frame 11, the second frame 12, the third frame 13 and the fourth frame 14 respectively, and the roller adjustment mechanisms 2 are used to adjust the distance between the rollers installed between the first frame 11 and the second frame 12 and / or the third frame 13 and the fourth frame 14 for conveying the rolled product. That is to say, in the embodiment of the utility model, two sets of combined hole-type rolling guides are arranged inside the skeleton base 1, so as to make full use of the roller body length, shorten the pass adjustment time, improve the bar production efficiency, and improve the quality of the finished product.

[0041] Preferably, the skeleton base 1 of the embodiment of the utility model also includes an adjustment pad 15 installed between the third frame 13 and the fourth frame 14, and the center distance of the rollers on the third frame 13 and the fourth frame 14 is adjusted by adjusting the thickness of the pad 15, thereby ensuring that the center distance of the rollers is consistent with the roller hole profile distance.

[0042] Specifically, the embodiment of the utility model has four groups of through holes symmetrically opened on both sides of the roller adjustment mechanism 2 and located at the upper and lower positions of the first frame 11, the second frame 12, the third frame 13, the adjustment pad 15 and the fourth frame 14, and then four groups of screws 3 (the length of the screws 3 should be greater than the total thickness of the four frames and the adjustment pad) pass through the through holes opened in the first frame 11, the second frame 12, the third frame 13 adjustment pad 15 and the fourth frame 14, and finally the skeleton base 1 is connected and fixed as a whole by nuts matching the screws 3, that is, compared with a set of screws fixed in the prior art, the combined rolling guide device of the utility model can greatly improve the overall strength of the device. At the same time, in order to further improve the strength of the device, the four frames in the embodiment of the utility model are all one-time molding structures, and the opening of the frame itself is used to replace the inlet throat of the prior art, and the entrance of the frame is smooth transition, which can play a role of free introduction.

[0043] In addition, in the embodiment of the utility model, a lifting ring 4 is installed on the top of the first frame 11 and the fourth frame 14 to cooperate with the crane to install or disassemble the combined rolling guide device.

[0044] It should be noted that if Figure 6As shown, the roller adjustment mechanism 2 used in the embodiment of the utility model includes a roller 20 and an eccentric shaft 21 rotatably arranged inside the roller 20, the upper and lower parts of the eccentric shaft 21 are respectively fixedly connected to the eccentric positioning block 22 arranged on the skeleton base 1; a turbine 23 is installed on the circumferential surface of the upper end of the eccentric shaft 21, and the turbine 23 is connected to the weight plate 25 through a worm 24, the turbine 23 and the worm 24 are meshed and driven, one end of the worm 24 is fixedly connected to the weight plate 25, and the turbine 23 is fixedly connected to the eccentric positioning block 22 arranged on the upper part of the eccentric shaft 21. Preferably, the surface of the weight plate 25 is marked with scales for recording the rotation size of the adjustment roller 20.

[0045] Specifically, the roller 20 and the eccentric shaft 21 of the utility model embodiment are connected by bearings 28 arranged at the upper and lower positions, and bearing blocks 29 are respectively sleeved on the eccentric shaft 21 and located outside the bearings 28. The bearing blocks 29 have the following two functions: on the one hand, they protect the bearings 28 from external dust pollution; on the other hand, they position the bearings 28 to prevent the bearings 28 from moving during use.

[0046] Through the above settings, when the roller spacing needs to be adjusted, the specific operation is as follows: according to the required adjustment distance, the weight plate 25 is rotated to drive the worm 24 to rotate, and then the worm 24 drives the turbine 23 that is meshed with it to rotate, and the turbine 23 rotates together with the eccentric shaft 21, and the eccentric distance of the center of the roller 20 is adjusted by the eccentric distance of the eccentric shaft 21 itself. Among them, the initial position mark of the eccentric positioning block 22 is fixed during general adjustment. If the production process specifications change, the eccentric distance is not enough to adjust the range, and then adjust the eccentric positioning block 22. Specifically, the eccentric positioning block 22 can be customized and replaced according to different specifications of rolled materials. When the rolling regulations are changed, the distance between the rollers 20 is adjusted by replacing the eccentric positioning block 22 and cooperating with the eccentric shaft 21 to realize the universal function of the guide. That is, the eccentric positioning block 22 is a modular part, which is customized according to the product specifications and dimensions, such as: rolling φ75 and φ53 bars correspond to two types of eccentric positioning blocks 22 respectively, and the eccentric distances are inconsistent. That is to say, the utility model combined rolling guide device can realize online adjustment of the spacing between double-hole rollers, and its maximum adjustment amount can be adjusted jointly according to the eccentric positioning block and the eccentric shaft. The general size of the device is about 560mm×476mm×425mm, and the corresponding maximum adjustment amount of the eccentric shaft is 8mm, and the adjustment amount of the eccentric positioning block is 8mm. The maximum adjustment range of the two groups is 16mm, and the adjustment accuracy reaches 0.2mm.

[0047] In addition, the roller adjustment mechanism 2 of the embodiment of the utility model further includes locking nuts 26 disposed at both ends of the eccentric shaft 21 , and the locking nuts 26 are used to prevent the eccentric shaft 21 from longitudinally displacing, thereby ensuring that the center line of the roller always remains in one line.

[0048] Preferably, in the embodiment of the utility model, a nut protection cover 27 is provided above the locking nut 26 at the top of the eccentric shaft 21. By providing the nut protection cover 27, dust is reduced or prevented from entering the roller adjustment mechanism 2, thereby ensuring its long-term and stable operation.

[0049] The utility model provides a combined rolling guide device with adjustable roller spacing, and the installation and adjustment process is as follows:

[0050] The wedge-shaped base is fixed to the guide beam by bolts, and the first frame 11, the second frame 12, the third frame 13, the adjustment pad 15 and the fourth frame 14 are fixed in series by screw rods 3, and the following structures or components are installed and adjusted in each frame respectively:

[0051] First, the eccentric positioning block 22 is rotated on the first frame 11, the second frame 12, the third frame 13 and the fourth frame 14;

[0052] Second, bearings 28 are installed on both sides of the roller 20, and bearing blocks 29 are fixed at both ends of the bearings 28, and then the whole is embedded in the first frame 11, the second frame 12, the third frame 13 and the fourth frame 14;

[0053] The third step is to pass the eccentric shaft 21 through the eccentric positioning block 22, the bearing block 29, the bearing 28, and the roller 20 respectively. After the eccentric shaft 21 passes through, one end is fixed with a locking nut 26;

[0054] Fourth, the eccentric positioning block 22 and the turbine 23 are connected to the other end of the eccentric shaft 21 respectively, and fixed neatly in position, and the weight plate 25 and the locking nut 26 are fixed; the worm 24 is placed on one side of the turbine 23 and meshed with it;

[0055] The fifth is to adjust the roller distance according to the specifications of the rolled material. Specifically, the worm 24 is driven to rotate by rotating the weight plate 25, and then the worm 24 drives the turbine 23 to rotate. The turbine 23 rotates together with the eccentric shaft 21 to adjust the roller distance. When the distance reaches the required size, its position is locked by the locking nut 26, and the nut protection cover 27 is covered.

[0056] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention.

[0057] It should be understood that the present invention is not limited to the above-described contents, and various modifications and changes can be made without departing from its scope. The scope of the present invention is limited only by the appended claims.

Claims

1. A combined rolling guide device with adjustable roller spacing, characterized in that: The invention comprises a skeleton base (1), wherein the skeleton base (1) comprises a first frame (11), a second frame (12), a third frame (13) and a fourth frame (14) which are connected in series in sequence, and the first frame (11), the second frame (12), the third frame (13) and the fourth frame (14) are detachably connected, and a wedge-shaped base fixedly connected to a rolling mill guide beam is arranged at the bottom of each frame; The first frame (11), the second frame (12), the third frame (13) and the fourth frame (14) are respectively provided with roller adjustment mechanisms (2) of the same structure, which are used to adjust the distance between rollers installed between the first frame (11) and the second frame (12) and / or the third frame (13) and the fourth frame (14) for conveying rolled products.

2. The combined rolling guide device with adjustable roller spacing according to claim 1 is characterized in that: Four groups of through holes are symmetrically provided on both sides of the roller adjustment mechanism (2) and located above and below the first frame (11), the second frame (12), the third frame (13) and the fourth frame (14); four groups of screw rods (3) pass through the through holes provided in the first frame (11), the second frame (12), the third frame (13) and the fourth frame (14); and the skeleton base (1) is connected and fixed by nuts matching the screw rods (3).

3. The combined rolling guide device with adjustable roller spacing according to claim 1 is characterized in that: The roller adjustment mechanism (2) comprises a roller (20) and an eccentric shaft (21) rotatably arranged inside the roller (20), wherein the upper part and the lower part of the eccentric shaft (21) are respectively fixedly connected to an eccentric positioning block (22) arranged on the skeleton base (1); A turbine (23) is installed on the circumferential surface of the upper end of the eccentric shaft (21), and the turbine (23) is connected to the weight plate (25) through a worm (24). The turbine (23) is fixedly connected to an eccentric positioning block (22) arranged on the upper part of the eccentric shaft (21), and is used to drive the worm (24) by rotating the weight plate (25), and then the worm (24) drives the turbine (23) to rotate, and the turbine (23) rotates together with the eccentric shaft (21), and the eccentric distance of the center of the roller (20) is adjusted by the eccentric distance of the eccentric shaft (21) itself.

4. The combined rolling guide device with adjustable roller spacing according to claim 3 is characterized in that: The eccentric positioning block (22) can be customized and replaced according to different specifications of rolled materials. When the rolling procedure is changed, the distance between the rollers (20) can be adjusted by replacing the eccentric positioning block (22) in conjunction with the eccentric shaft (21) to achieve universal guide and guard use.

5. The combined rolling guide device with adjustable roller spacing according to claim 3 is characterized in that: The roller adjustment mechanism (2) further comprises locking nuts (26) arranged at both ends of the eccentric shaft (21), wherein the locking nuts (26) are used to prevent the eccentric shaft (21) from generating longitudinal displacement.

6. The combined rolling guide device with adjustable roller spacing according to claim 5, characterized in that: A nut protection cover (27) is provided above the locking nut (26) at the top end of the eccentric shaft (21).

7. The combined rolling guide device with adjustable roller spacing according to claim 3 is characterized in that: The roller (20) and the eccentric shaft (21) are connected via bearings (28) arranged at upper and lower locations, and bearing blocks (29) are sleeved on the eccentric shaft (21) and located outside the bearings (28).

8. The combined rolling guide device with adjustable roller spacing according to any one of claims 1 to 7, characterized in that: The skeleton base (1) also includes an adjustment pad (15) arranged between the third frame (13) and the fourth frame (14), and the center distance between the rollers on the third frame (13) and the fourth frame (14) is adjusted by the thickness of the adjustment pad (15).

9. The combined rolling guide device with adjustable roller spacing according to claim 8, characterized in that: A lifting ring (4) is installed on the top of each of the first frame (11) and the fourth frame (14), and the lifting ring (4) is used to cooperate with a crane to install or remove the combined rolling guide device.

10. The combined rolling guide device with adjustable roller spacing according to claim 8, characterized in that: The first frame (11), the second frame (12), the third frame (13) and the fourth frame (14) are all integrally formed structures, and each frame is provided with a smoothly transitioned entrance for free introduction.

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