Universal roller frame for large and small H-shaped steel character carving machine

Abstract

The utility model discloses a general roller frame for large and small H-shaped steel character carving machines, which comprises a first roller frame and a second roller frame, the second roller frame is detachably connected in the first roller frame, a first horizontal roller is detachably placed on the first roller frame, the first horizontal roller corresponds to a large H-shaped steel horizontal roller, and the second horizontal roller corresponds to a second H-shaped steel horizontal roller. A first horizontal roller is detachably placed on the first roller frame, a second horizontal roller is detachably placed on the second roller frame, the second horizontal roller corresponds to a small H-shaped steel horizontal roller, and the axis of the first horizontal roller placed on the first roller frame and the axis of the second horizontal roller placed on the second roller frame are located on the same horizontal plane. An electric corrosion head for lettering is arranged at the same height as the axis of the first horizontal roller correspondingly placed on the first roller frame; according to the utility model, the universality of the large and small H-shaped steel horizontal roller character carving machines is realized, the horizontal roller character carving work is prevented from being influenced when the large and small H-shaped steel character carving machines have mechanical faults, the universality of the horizontal roller character carving is improved, and the possible influence of back-and-forth transportation on production is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a universal roller frame for large and small H-shaped steel engraving machines. Background Art

[0002] Many existing steel mills are equipped with two production lines for large H-beam and small H-beam. Both the large H-beam and small H-beam production lines require electro-etching marking and lettering on the rollers. Generally, both the large H-beam and small H-beam production lines have independent lettering machines for electro-etching the rollers.

[0003] However, when a mechanical failure occurs in the engraving machine on the large or small H-beam production line, production efficiency can be guaranteed by using the engraving machine on the same production line. The engraving of the horizontal roller is a process of electro-erosion of the roller sleeve using an electro-erosion head. To ensure the integrity of the engraving, the center of the horizontal roller shaft needs to be at the same height as the electro-erosion head.

[0004] However, there is generally a significant difference in the roller diameter at the support point of the large H-beam horizontal roller and the roller diameter at the support point of the small H-beam horizontal roller. If the small H-beam horizontal roller is processed on the engraving machine of the large H-beam production line, the radial height difference of the roller neck will prevent the engraving machine's letterhead from aligning with the axis of the small H-beam horizontal roller. Adjustment is required, making it impossible to complete the engraving process quickly and effectively. At the same time, the roller neck support length of the large H-beam horizontal roller frame is also different from that of the small H-beam horizontal roller frame. The existing large H-beam horizontal roller frame cannot support the small H-beam horizontal roller, making it impossible to quickly achieve the universal use of engraving machines on large and small H-beam production lines, and thus unable to guarantee production efficiency in the event of mechanical failure.

[0005] In view of the above-mentioned defects, the inventors of the present invention finally obtained the present invention after a long period of research and practice. Utility Model Content

[0006] In order to solve the above-mentioned technical defects, the technical solution adopted by the present invention is to provide a universal roller frame for large and small H-beam engraving machines, including a first roller frame and a second roller frame, the second roller frame is detachably connected to the first roller frame, the first horizontal roller is detachably placed on the first roller frame, the first horizontal roller corresponds to the large H-beam horizontal roller, the second horizontal roller is detachably placed on the second roller frame, the second horizontal roller corresponds to the small H-beam horizontal roller, the axes of the first horizontal roller placed on the first roller frame and the second horizontal roller placed on the second roller frame are located on the same horizontal plane, and the electric etching head used for engraving is set at the same height as the axis of the first horizontal roller placed on the first roller frame.

[0007] Preferably, the first roller frame includes a base plate, a first support plate and a surrounding plate, the two first support plates are arranged in parallel on both sides of the base plate, the two surrounding plates are arranged in parallel on the base plate, and the two ends of the surrounding plate are respectively connected to the two first support plates, an oil return port is provided on the base plate, and an oil receiving port is provided above the surrounding plate, and the oil receiving port extends obliquely outward from the surrounding plate.

[0008] Preferably, both of the first support plates are provided with first fixing grooves, and the first fixing grooves are configured as V-shaped grooves for correspondingly fixing two sides of the first horizontal roller.

[0009] Preferably, two positioning grooves are symmetrically provided on the first horizontal roller. When the first horizontal roller is arranged on the first roller frame, the first support plate is arranged in the positioning groove in the first fixing groove to form a snap-fit ​​positioning.

[0010] Preferably, the second roller frame includes a second support plate and a support rod, the two second support plates are symmetrically arranged at the two ends of the support rod, the two first support plates are fixedly provided with positioning plates, the two ends of the support rod are respectively detachably provided on the two positioning plates, the positioning plates are provided between the two first support plates, and the two second support plates are provided with second fixing grooves, and the second fixing grooves are set as V-shaped grooves for correspondingly fixing the two ends of the second horizontal roller.

[0011] Preferably, the cross-section of the middle part of the support rod is set to be rectangular, and a support groove is set at the bottom of the second support plate. The support groove is a rectangular groove with a size corresponding to the cross-section of the support rod. The support rod is set in the support groove and welded fixed.

[0012] Preferably, the cross-sections at both ends of the support rod are set to be isosceles trapezoids, and correspondingly, the positioning plate is provided with positioning grooves, which are trapezoidal grooves with dimensions corresponding to the cross-sections of the ends of the support rod.

[0013] Preferably, the included angle between the two inclined groove walls of the positioning groove is set to 30°.

[0014] Preferably, the second roller frame also includes an auxiliary support plate and a reinforcing rib plate, the auxiliary support plate is vertically fixed on the second support plate, and one side of the auxiliary support plate is fixedly connected to the support rod, and the other side is fixedly connected to the reinforcing rib plate, and the reinforcing rib plate is fixedly connected to the auxiliary support plate and the second support plate at the same time.

[0015] Preferably, the reinforcing rib plate is configured as a right-angled triangle plate, and the two vertical sides of the reinforcing rib plate are fixedly connected to the auxiliary support plate and the second support plate respectively. Two reinforcing rib plates are provided on the same second support plate at the same time, and the two reinforcing rib plates are symmetrically arranged on both sides of the second fixing groove.

[0016] Compared with the prior art, the beneficial effects of the present invention are: the present invention realizes the universality of large and small H-shaped steel horizontal roller engraving machines, prevents the large and small H-shaped steel engraving machines from affecting the horizontal roller engraving work when mechanical failure occurs, improves the versatility of horizontal roller engraving, and prevents the impact of round-trip transportation on production. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view structural diagram of the universal roller stand for large and small H-beam cutting plotters;

[0018] Figure 2 It is a side view structural diagram of the universal roller frame of the large and small H-beam cutting plotters;

[0019] Figure 3 is a structural front view of the first roller frame;

[0020] Figure 4 is a structural side view of the first roller stand;

[0021] Figure 5 It is a structural front view of the second roller frame;

[0022] Figure 6 It is a structural side view of the second roller frame;

[0023] Figure 7 is a top view of the structure of the second roller stand;

[0024] Figure 8 This is a structural view of the second support plate.

[0025] The numbers in the figure represent:

[0026] 1-first roller frame; 2-second roller frame; 3-first horizontal roller; 4-second horizontal roller; 5-electro-erosion head; 11-bottom plate; 12-first support plate; 13-enclosing plate; 14-oil return port; 15-oil receiving port; 16-positioning plate; 21-second support plate; 22-support rod; 23-auxiliary support plate; 24-reinforcement rib plate; 121-first fixing groove; 122-spray pipe rack; 211-second fixing groove; 212-support groove; 213-hook. DETAILED DESCRIPTION

[0027] The above and other technical features and advantages of the present invention are described in more detail below with reference to the accompanying drawings.

[0028] Example 1

[0029] like Figure 1 and Figure 2 As shown, Figure 1 This is a front view structural diagram of the universal roller stand for large and small H-beam cutting plotters; Figure 2 It is a side view structural diagram of the universal roller frame of the large and small H-beam engraving machines.

[0030] The universal roller frame of the large and small H-beam engraving machine described in the utility model includes a first roller frame 1 and a second roller frame 2, the second roller frame 2 is detachably connected to the first roller frame 1, and a first horizontal roller 3 is detachably placed on the first roller frame 1, and the first horizontal roller 3 corresponds to the large H-beam horizontal roller. The second horizontal roller 4 is detachably placed on the second roller frame 2, and the second horizontal roller 4 corresponds to the small H-beam horizontal roller. The axes of the first horizontal roller 3 placed on the first roller frame 1 and the second horizontal roller 4 placed on the second roller frame 2 are located on the same horizontal plane, and the electric etching head 5 used for engraving is set at the same height as the axis of the first horizontal roller 3 placed on the first roller frame 1.

[0031] The utility model realizes the universality of large and small H-shaped steel horizontal roller engraving machines, prevents the large and small H-shaped steel engraving machines from affecting the horizontal roller engraving work when a mechanical failure occurs, improves the universality of the horizontal roller engraving, and prevents the possible influence of round-trip transportation on production.

[0032] Example 2

[0033] like Figure 3 and Figure 4 As shown, Figure 3 is a structural front view of the first roller frame; Figure 4 This is a structural side view of the first roller frame.

[0034] The first roller frame 1 includes a base plate 11, a first support plate 12 and a surrounding plate 13. The two first support plates 12 are arranged in parallel on both sides of the base plate 11, and the two surrounding plates 13 are arranged in parallel on the base plate 11, and the two ends of the surrounding plate 13 are respectively on the two first support plates 12, thereby forming a box structure. The box structure is used to recover the insulating oil sprayed during electro-erosion. An oil return port 14 is provided on the base plate 11, and an oil receiving port 15 is provided above the surrounding plate 13. The oil receiving port 15 extends outwardly from the surrounding plate 13 to increase the collection area of ​​the insulating oil. The sprayed insulating oil is collected by the oil receiving port 15 and gathered in the box structure, and finally discharged from the box structure by the oil return port 14 and enters the oil circulation system for spraying again.

[0035] A first fixing groove 121 is provided on each of the two first support plates 12 . The first fixing groove 121 is configured as a V-shaped groove for correspondingly fixing two sides of the first horizontal roller 3 to keep the first horizontal roller 3 stably placed.

[0036] Generally, a spray pipe rack 122 is provided on one side of the first support plate 12 corresponding to the oil receiving port 15 , and can fix a spray pipe for spraying insulating oil.

[0037] Two positioning grooves are symmetrically arranged on the first horizontal roller 3, and the positioning grooves are used for disassembling the bearing seat of the first horizontal roller 3. Correspondingly, when the first horizontal roller 3 is set on the first roller frame 1, in the first fixing groove 121, the first support plate 12 is set in the positioning groove to form a snap-fit ​​positioning to ensure the stability of the first horizontal roller 3 during the engraving process.

[0038] Example 3

[0039] like Figures 5 to 8 As shown, Figure 5 It is a structural front view of the second roller frame; Figure 6 It is a structural side view of the second roller frame; Figure 7 is a top view of the structure of the second roller stand; Figure 8 This is a structural view of the second support plate.

[0040] The second roller frame 2 includes a second support plate 21 and a support rod 22. The two second support plates 21 are symmetrically arranged at the two ends of the support rod 22. The two first support plates 12 are fixedly provided with a positioning plate 16. The two ends of the support rod 22 are respectively detachably provided on the two positioning plates 16. The positioning plate 16 is provided between the two first support plates 12. The two second support plates 21 are provided with a second fixing groove 211. The second fixing groove 211 is set as a V-shaped groove, which is used to fix the two sides of the second horizontal roller 4 to keep the second horizontal roller 4 stably placed.

[0041] Specifically, the cross-section of the middle part of the support rod 22 is set to be rectangular, and a support groove 212 is set at the bottom of the second support plate 21. The support groove 212 is a rectangular groove with a size corresponding to the cross-section of the support rod 22. The support rod 22 is set in the support groove 212 and welded and fixed, thereby ensuring that the support rod 22 effectively supports the second support plate 21.

[0042] The cross-sections at both ends of the support rod 22 are set to be isosceles trapezoids. Correspondingly, a positioning groove is provided on the positioning plate 16. The positioning groove is a trapezoidal groove whose size corresponds to the cross-section of the end of the support rod 22, so as to facilitate the fixing of the position of the end of the support rod 22 on the positioning plate 16.

[0043] Generally, the included angle between the two inclined groove walls of the positioning groove is generally set to 30°.

[0044] Preferably, two hooks 213 are symmetrically provided on the upper end of the second support plate 21 to facilitate the lifting of the second roller frame 2 so as to move the second roller frame 2 into the first roller frame 1 for detachable installation.

[0045] The second roller frame 2 further includes an auxiliary support plate 23 and a reinforcing rib plate 24. The auxiliary support plate 23 is vertically fixed to the second support plate 21, and one side of the auxiliary support plate 23 is fixedly connected to the support rod 22, and the other side is fixedly connected to the reinforcing rib plate 24, thereby further improving the stability of the relative position between the support rod 22 and the second support plate 21. The reinforcing rib plate 24 is fixedly connected to both the auxiliary support plate 23 and the second support plate 21 to improve the stability of the auxiliary support plate 23 on the second support plate 21.

[0046] Preferably, the reinforcing rib plate 24 is configured as a right-angled triangle plate, and the two vertical sides of the reinforcing rib plate 24 are fixedly connected to the auxiliary support plate 23 and the second support plate 21, respectively. Two reinforcing rib plates 24 are provided on the same second support plate 21, and the two reinforcing rib plates 24 are symmetrically arranged on both sides of the second fixing groove 211, so as to strengthen the structural stability of the second fixing groove 211 and reduce the occurrence of cracks due to the support force of the second fixing groove 211.

[0047] Example 4

[0048] This embodiment is a specific example of actual use:

[0049] The first roller frame 1 must first meet the lettering requirements of the large H-shaped steel horizontal roller. The shaft of the large H-shaped steel horizontal roller itself is provided with two positioning grooves. The function of the positioning grooves is to disassemble the bearing seat of the large H-shaped steel horizontal roller. In order to ensure the stability of the large H-shaped steel horizontal roller during the lettering process, the first roller frame 1 also uses the positioning grooves to support the horizontal roller lettering. Therefore, the setting dimensions of the two second support plates 21 on the first roller frame 1 are set to correspond to the setting dimensions of the positioning grooves. The setting dimensions of the positioning grooves in this embodiment are specifically: opening size 920mm, groove width 30mm, groove bottom diameter

[0050] The isosceles trapezoidal structure on the positioning groove is a V-groove positioning mechanism, which has high repeat positioning accuracy, sufficient supporting strength, and the V-shaped surface has good wear resistance. It meets the placement of small H-beam horizontal rollers while not interfering with the placement of large H-beam horizontal rollers.

[0051] The smaller the V-shaped surface angle of the positioning structure, the higher the positioning accuracy, but the smaller the V-shaped surface angle, the easier it is for the V-shaped surface to self-lock. To facilitate disassembly, the two inclined groove walls of the positioning groove adopt a 30° angle.

[0052] The positioning plate 16 is made of 45# steel to ensure that the positioning plate 16 has sufficient supporting strength for the second roller frame 2; in order to improve the mechanical properties of the positioning plate 16 material, heat treatment and tempering are performed to HB245~255; in order to improve the wear resistance of the V-shaped surface of the positioning plate 16, the surfaces of the two inclined groove walls of the positioning groove are quenched to HRC50~54.

[0053] The assembly length of the large H-beam horizontal roller is 820 mm (the actual maximum H-beam width rolled is 800 mm), and the step size between the roller sleeve fitting surface and the horizontal roller positioning groove is 50 mm.

[0054] In order to avoid interference with the placement of the large H-beam horizontal roller, the thickness of the positioning plate 16 is 45 mm, which can meet the strength requirement of the second roller frame 2 to support the small H-beam horizontal roller weighing 3 tons.

[0055] Given the support rod 22's 100mm x 80mm height and width dimensions, the positioning groove has an opening of 80mm and a depth of 110mm. The upper end of the positioning plate 16 is flush with the upper end of the support rod 22; the positioning groove's depth of 110mm is 10mm deeper than the support rod 22's height of 100mm. This depth allows for sufficient space to prevent interference caused by the support rod 22 dropping or dirt accumulation if the positioning groove surface or the conical surface of the support rod 22 wears.

[0056] The diameter of the large H-beam horizontal roller is 1400mm, and the diameter of the small H-beam horizontal roller is 1000mm. The height difference between the radius of the large and small H-beam roller sleeves is 200mm. Therefore, the positioning plate 16 is designed with a height of 200mm to accommodate this height difference, ensuring that the axes of the large and small H-beam horizontal rollers are at the same height. The width of the positioning plate 16 is 180mm to meet strength requirements.

[0057] The second roller frame 2 must first meet the lettering requirements of the small H-shaped steel horizontal roller. The roller sleeve assembly length of the small H-shaped steel horizontal roller is 500mm and the diameter is 500mm. There are 20mm steps on both ends of the roller body of the small H-shaped steel horizontal roller. It is the second roller stand 2 that supports the position of the small H-shaped steel horizontal roller shaft.

[0058] In the second roller frame 2, the second support plate 21 is welded to the support rod 22, the auxiliary support plate 23 is welded between the support rod 22 and the second support plate 21, and the reinforcing rib plate 24 is welded to the second support plate 21 and the auxiliary support plate 23 to form the overall structure of the second roller frame 2.

[0059] The length of the support rod 22 is 920mm, which is determined based on the 925mm gap of the first roller frame 1, with a 5mm hoisting clearance. The main body length of the support rod 22 is 830mm, which is determined based on the 925mm gap of the first roller frame 1 minus 45mm on both sides = 835mm, with a 5mm clearance.

[0060] The main body of the support rod 22 has a height and width of 100mm*80mm, which is designed to meet the strength requirements of the support rod 22 body to support the small H-beam horizontal roller. To ensure the installation accuracy requirements of the second support plate 21 and the support rod 22, the 80mm width of the support rod 22 is designed with a tolerance of (-0.08 / -0.03)mm. The main body of the support rod 22 is designed to have a height of 100mm greater than the width of 80mm, ensuring high load-bearing strength. At the same time, the inclined surface with a 30° angle is long. The inclination of the support rod 22 and the positioning plate 16 cooperates to make the second roller frame 2 more stable in the first roller frame 1.

[0061] The support rod 22 is made of 45# steel, mainly to consider the strength requirements of the support rod 22. In order to improve the structural stability of the support rod 22 body and improve the mechanical properties of the support rod 22 body, the support rod 22 body is heat-treated and tempered to HB245-255 after rough machining.

[0062] The support rod 22 is machined with an inverted trapezoidal shape with a 30° angle at both ends. This shape cooperates with the positioning plate 16 to position the second roller frame 2. The contact surface between the positioning plate 16 and the inverted trapezoidal shape at both ends of the support rod 22 is ≥80%. The 30° angle between the inverted trapezoidal shape at both ends of the support rod 22 is only allowed to be slightly larger than the 30° angle of the positioning groove, ensuring that ≥80% of the contact surface is located at the top. The machined length of the inverted trapezoidal shape at both ends of the support rod 22 is 50 mm, leaving a 5 mm gap with the 45 mm thickness of the positioning plate 16.

[0063] Considering the strength requirement of the second support plate 21 , the second support plate 21 is made of 25 mm thick, 45# steel plate.

[0064] The second support plate 21 is a 700mm*565mm rectangular steel plate. A 100mm*80mm support groove 212 is machined into the lower portion of the second support plate 21 to position the second support plate 21 on the support rod 22. To ensure the required installation accuracy between the second support plate 21 and the support rod 22, the 80mm width of the support groove 212 is designed with a tolerance of (+0.08+0.03)mm. This allows the maximum clearance between the support rod 22 and the support plate to be (0.08-(-0.08))=0.16mm, and the minimum clearance to be (0.03-(-0.03))=0.06mm.

[0065] The second fixing groove 211 is provided at a 90° angle on the upper portion of the second support plate 21. Both sides of the second fixing groove 211 are used to support the roll neck of the small H-beam horizontal roll. The opening width of the second fixing groove 211 is designed to be 594 mm to ensure the support of the roll neck size. The center height is 525mm away from the upper end of the 100mm*80mm notch in the second support plate 21, that is, to ensure that the small H horizontal roller The roller sleeve is hoisted in the second roller frame 2 and has a gap of 25mm with the support rod 22. At the same time, the opening width of the second fixing groove 211 is 594mm to ensure the support roller neck size. In addition, a large portion of the groove slope of the second fixing groove 211 extends outward, and the outward extending slope mainly plays a guiding and positioning role when the horizontal roller frame is hoisted.

[0066] The second roller frame 2 is required to be repeatedly hoisted and disassembled. Considering the convenience and safety of the hoisting of the second roller frame 2, two 30mm wide hoisting holes, namely the hoisting hooks 213, are designed on the upper end of the second support plate 21. The center of the hoisting hole is 50mm from the upper end of the second support plate 21 and 40mm from the edge.

[0067] The design of the width of the second support plate 21 being 700 mm is mainly based on the size of the 90° V-groove opening of 594 mm at the upper part of the second support plate 21 and the size of the hoisting openings on both sides.

[0068] The design of the height of the second support plate 21 is 565mm, mainly based on the opening size of the 90° V-groove of the upper part of the second support plate 21 and the size of the support roller neck. The center height is designed to be 525 mm from the upper end of the 100 mm*80 mm slot in the second support plate 21 .

[0069] Considering the strength requirement of the second support plate 21, the connection (root) of the two inclined surfaces of the 90° V-shaped groove with an upper opening of 594 mm of the second support plate 21 is designed to be an R100 arc connection.

[0070] The second support plate 21 is connected to the support rod 22 by welding the support groove 212 to the support rod 22. During the repeated electro-erosion process of the small H-beam horizontal roller, due to the impact of the horizontal roller hoisting, the welded connection strength between the second support plate 21 and the support rod 22 is difficult to ensure the long-term use of the small H-beam roller frame, so the second support plate 21 is required to provide auxiliary support.

[0071] The auxiliary support plate 23 is placed on the upper plane of the support rod 22 and is welded to the outer end surface of the second support plate 21 to form a whole.

[0072] The auxiliary support plate 23 mainly provides support for the second support plate 21 and improves the rigidity of the second support plate 21. It is made of 25mm A3# steel plate, mainly considering the better welding performance of A3# steel. The auxiliary support plate 23 adopts a trapezoidal plus rectangular structure. The 600mm long side of the rectangle is welded to the 700mm width of the second support plate 21. The 600mm contact surface of the auxiliary support plate 23 basically meets the support function of the second support plate 21. The design of the 600mm long rectangle being smaller than the 700mm width of the second support plate 21 is based on the consideration that the auxiliary support plate 23 is welded to the second support plate 21. The rear end of the rectangle forms a corner that may cause harm to people. The auxiliary support plate 23 is retracted 50mm on one side to reduce the length of the corner, which is considered from a safety perspective.

[0073] The width of the auxiliary support plate 23 is 132.5 mm, calculated based on the main length of the support rod 22 (820 mm) minus the spacing between the second support plates 21 (555 mm = 265 mm / 2 = 132.5 mm). This prevents the auxiliary support plate 23 from interfering with the 50 mm trapezoidal step in the support rod 22. The width of the 600 mm rectangle is 36 mm, ensuring that the support plate's inherent rigidity meets the rigidity requirements for supporting the second support plate 21. The 400 mm upper edge of the trapezoid is designed to allow for the obtuse angles of the 600 mm rectangle in the auxiliary support plate 23, a safety consideration.

[0074] The auxiliary support plate 23 provides auxiliary support for the second support plate 21, thereby improving the rigidity of the second roller frame 2. However, the height of the second support plate 21 is 565 mm, and the auxiliary support plate 23 is supported at 125 mm from the second support plate 21, leaving 440 mm of the second support plate 21 unsupported. The overall rigidity of the second roller frame 2 is still insufficient, so two reinforcing ribs 24 are added between the auxiliary support plate 23 and the second support plate 21 to increase the overall rigidity of the second roller frame 2.

[0075] The reinforcing rib plate 24 is made of 25mm A3 steel plate, mainly considering that A3# steel has better welding performance. The reinforcing rib plate 24 is designed as a triangular structure, supported between the auxiliary support plate 23 and the second support plate 21. The bottom width of the reinforcing rib plate 24 is 132.5mm, the same as the width of the auxiliary support plate 23, which is the maximum support length of the bottom edge of the reinforcing rib plate 24. The reinforcing rib plate 24 is welded to both sides of the second support plate 21, and the outer opening size of the two reinforcing rib plates 24 is 407mm, which roughly corresponds to the diameter of the roller neck supported by the second support plate 21. Part of the body.

[0076] The design of the 300 mm height of the reinforcing rib plate 24 is based on the consideration that the reinforcing rib plate 24 is not higher than the V-shaped inclined surface of the second supporting plate 21 to avoid interference with the roll neck of the horizontal roller.

[0077] The above description is merely a preferred embodiment of the present invention and is intended to be illustrative rather than restrictive of the present invention. Those skilled in the art will appreciate that many changes, modifications, and even equivalents may be made to the present invention within the spirit and scope of the claims, and all of these changes will fall within the scope of protection of the present invention.

Claims

1. A universal roller stand for large and small H-beam cutting plotters, characterized in that: It includes a first roller frame and a second roller frame, the second roller frame is detachably connected to the first roller frame, the first horizontal roller is detachably placed on the first roller frame, the first horizontal roller corresponds to a large H-shaped steel horizontal roller, the second horizontal roller is detachably placed on the second roller frame, the second horizontal roller corresponds to a small H-shaped steel horizontal roller, the axes of the first horizontal roller placed on the first roller frame and the second horizontal roller placed on the second roller frame are located on the same horizontal plane, and the electric etching head used for engraving is set at the same height as the axis of the first horizontal roller placed on the first roller frame.

2. The universal roller stand for large and small H-beam cutting machines as claimed in claim 1, characterized in that: The first roller frame includes a base plate, a first support plate and a surrounding plate. The two first support plates are arranged in parallel on both sides of the base plate. The two surrounding plates are arranged in parallel on the base plate, and the two ends of the surrounding plate are respectively connected to the two first support plates. An oil return port is provided on the base plate, and an oil receiving port is provided above the surrounding plate. The oil receiving port extends obliquely outward from the surrounding plate.

3. The universal roller stand for large and small H-beam cutting plotters as claimed in claim 2, characterized in that: A first fixing groove is provided on each of the two first supporting plates. The first fixing groove is configured as a V-shaped groove for correspondingly fixing two sides of the first horizontal roller.

4. The universal roller stand for large and small H-beam cutting plotters as claimed in claim 3, characterized in that: Two positioning grooves are symmetrically provided on the first horizontal roller. When the first horizontal roller is arranged on the first roller frame, the first support plate is arranged in the positioning grooves in the first fixing groove to form a snap-fit ​​positioning.

5. The universal roller stand for large and small H-beam cutting plotters as claimed in claim 2, characterized in that: The second roller frame includes a second support plate and a support rod, the two second support plates are symmetrically arranged at the two ends of the support rod, the two first support plates are fixedly provided with a positioning plate, the two ends of the support rod are respectively detachably provided on the two positioning plates, the positioning plate is provided between the two first support plates, and the two second support plates are provided with a second fixing groove, the second fixing groove is set as a V-shaped groove, which is used to correspondingly fix the two ends of the second horizontal roller.

6. The universal roller stand for large and small H-beam cutting plotters as claimed in claim 5, characterized in that: The cross section of the middle portion of the support rod is set to a rectangle, and a support groove is set at the bottom of the second support plate. The support groove is a rectangular groove with a size corresponding to the cross section of the support rod. The support rod is set in the support groove and welded and fixed.

7. The universal roller stand for large and small H-beam cutting plotters as claimed in claim 6, characterized in that: The cross sections of both ends of the support rod are set to be isosceles trapezoids. Correspondingly, the positioning plate is provided with positioning grooves, which are trapezoidal grooves with dimensions corresponding to the cross sections of the ends of the support rod.

8. The universal roller stand for large and small H-beam cutting plotters as claimed in claim 7, characterized in that: The included angle between the two inclined groove walls of the positioning groove is set to 30°.

9. The universal roller stand for large and small H-beam cutting plotters as claimed in claim 7, characterized in that: The second roller frame also includes an auxiliary support plate and a reinforcing rib plate. The auxiliary support plate is vertically fixed on the second support plate, and one side of the auxiliary support plate is fixedly connected to the support rod, and the other side is fixedly connected to the reinforcing rib plate. The reinforcing rib plate is fixedly connected to the auxiliary support plate and the second support plate at the same time.

10. The universal roller stand for large and small H-beam cutting plotters as claimed in claim 9, characterized in that: The reinforcing rib plate is configured as a right-angled triangle plate, and the two vertical sides of the reinforcing rib plate are fixedly connected to the auxiliary support plate and the second support plate respectively. Two reinforcing rib plates are provided on the same second support plate at the same time, and the two reinforcing rib plates are symmetrically arranged on both sides of the second fixing groove.

Images