A steel strip longitudinal weld seam rolling equipment

Abstract

This utility model belongs to the field of weld seam rolling, specifically relating to a longitudinal weld seam rolling device for steel strips. It includes a frame, with a fixed plate fixedly connected to the bottom of the frame. The fixed plate has mounting holes inside. A lifting frame is installed at the top of the frame, and a hydraulic cylinder is fixedly installed inside the lifting frame. A lifting plate is fixedly connected to the lower end of the hydraulic cylinder's output end, and the lifting plate is slidably connected to the lifting frame. An upper shaft seat is fixedly installed at the lower end of the lifting plate, and an upper roller is rotatably mounted inside the upper shaft seat via bearings. This utility model replaces manual hammering with mechanical equipment to create rolling rollers. The upper and lower clamping mechanism uses hydraulic cylinders instead of hammering, and the hydraulic system can precisely control the downward pressure, avoiding problems such as steel strip deformation caused by uneven hammering force. The weld seam rolling device, with upper and lower rolling rollers clamping and stainless steel strip rotation, continuously rolls, improving the efficiency of the weld seam processing process.

Description

Technical Field

[0001] This utility model relates to the field of weld seam rolling technology, specifically to a steel strip longitudinal weld seam rolling device. Background Technology

[0002] The origins of metal rolling technology can be traced back to ancient times. As early as the 3rd century BC, the ancient Romans used stone mills to roll oil, papyrus, and cloth. By the 6th century AD, during the Tang Dynasty in China, people were already using stone mills to roll wheat. Later, they invented the ox-wheel rolling process for manufacturing materials such as copper sheets and aluminum foil. It wasn't until the late 19th century that Henry Bessemer of England invented the three-roll mill. This machine, using the principle of pressure, could roll materials into different shapes and specifications, and is therefore considered a milestone in metal rolling technology.

[0003] In the early 20th century, the entire continuous rolling mill was created in Berkeley, USA, which accelerated the rolling pressure load speed and ensured higher precision. With continuous improvement, metal rolling technology has become increasingly important in industrial production.

[0004] With the rapid development of electronic technology, especially the advancement of computer and communication technologies, people have access to more precise, intelligent, and efficient automated production equipment, which has brought about a new revolutionary development in metal rolling technology. Currently, metal rolling technology utilizes high-quality, high-efficiency, and high-sensitivity continuous rolling mills, enabling the production of more complex and higher-quality finished products.

[0005] During the processing of stainless steel strip, due to the limitation of raw material width (the widest raw material is 2040mm, and the widest finished steel strip is 3500mm), two or more steel strips need to be longitudinally welded together to meet usage requirements. This welding process leaves one or more longitudinal continuous weld seams, which need to be treated to control weld deformation within 0.1mm. The weld seams require manual hammering for cold work hardening to improve hardness and other indicators, thereby increasing weld strength. Because this is manual hammering, it demands extremely high skill levels from employees and is very time-consuming and inefficient. Therefore, improvements are needed. Utility Model Content

[0006] The purpose of this invention is to provide a steel strip longitudinal weld seam rolling equipment, which solves the problem of low weld seam rolling efficiency.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a steel strip longitudinal weld seam rolling device, comprising a frame, a fixed plate fixedly connected to the bottom of the frame, an installation hole provided inside the fixed plate, a lifting frame provided at the top of the frame, a hydraulic cylinder fixedly installed inside the lifting frame, a lifting plate fixedly connected to the lower end of the output end of the hydraulic cylinder, the lifting plate being slidably connected to the lifting frame, an upper shaft seat fixedly installed at the lower end of the lifting plate, an upper roller rotatably mounted inside the upper shaft seat via a bearing, an auxiliary wheel rotatably mounted on the outer side of the upper shaft seat, a stainless steel strip contacting the lower end of the upper roller, the stainless steel strip contacting the auxiliary wheel, a lower roller contacting the bottom of the stainless steel strip, a lower shaft seat rotatably mounted on the outer side of the lower roller via a bearing, a mounting seat fixedly connected to the bottom of the lower shaft seat, the mounting seat being fixedly mounted on the frame, and a guide mechanism provided on the lifting plate.

[0008] Preferably, there are multiple mounting holes, which are evenly distributed on the fixing plate. By designing these mounting holes, the fixing plate can be installed and fixed.

[0009] Preferably, there are two auxiliary rollers, which are symmetrically distributed on the outer side of the upper roller. This design of the auxiliary rollers ensures that the upper roller presses down evenly, preventing uneven pressure distribution.

[0010] Preferably, the guiding mechanism includes a slide groove. The lifting frame has an internal slide groove, and a ball bearing is slidably connected inside the slide groove. A protrusion contacts the outer side of the ball bearing, and the protrusion is fixedly connected to the lifting frame. A slide block is movably sleeved on the outer side of the ball bearing, and the slide block is slidably connected to the lifting frame and the lifting plate. A support block is movably sleeved on the outer side of the ball bearing. A guide rod is slidably sleeved inside the support block. One end of the guide rod is fixedly connected to the slide block, and a spring is provided on the outer side of the guide rod. A fixing block is fixedly connected to the other end of the guide rod, and the fixing block is fixedly connected to the slide block. A sponge pad is fixedly connected inside the slide block, and the sponge pad absorbs lubricating oil. The sponge pad contacts both the support block and the ball bearing. By designing this guiding mechanism, the movement of the lifting plate can be guided.

[0011] Preferably, there are multiple protrusions, which are evenly distributed inside the lifting frame. By designing multiple protrusions, the ball bearings can be pushed by the protrusions at different positions when they roll.

[0012] Preferably, one end of the spring is fixedly connected to the slide, and the other end of the spring is fixedly connected to the fixing block. The spring is designed so that its force can be applied to the slide.

[0013] Preferably, the lifting frame has a through groove inside, and a slide block is slidably connected inside the through groove. By designing the through groove, the slide block can slide inside the through groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model replaces manual hammering with mechanical equipment to manufacture rolling rollers. The upper and lower clamping method uses hydraulic cylinders to replace hammering. The hydraulic system can accurately control the downward pressure and avoid problems such as steel strip deformation caused by uneven hammering force. It also manufactures weld seam rolling equipment with upper and lower rolling rollers clamping and stainless steel strip running continuously, which improves the efficiency of weld seam processing.

[0016] 2. This utility model guides the movement of the lifting plate by designing a sliding base. The rolling friction of the balls instead of sliding friction reduces the friction during guidance, extends the service life of the guiding components, and the balls contact the protrusions as they roll. The protrusions can squeeze the balls, which in turn squeeze the sponge pad, expelling the lubricating oil stored inside the sponge pad. This provides automatic lubrication for the balls and further reduces the friction during guidance. Attached Figure Description

[0017] Figure 1 This is a perspective view of the overall structure of this utility model;

[0018] Figure 2 This utility model Figure 1 A partial three-dimensional structural diagram;

[0019] Figure 3 This utility model Figure 2 Top sectional view of the lifting platform;

[0020] Figure 4 This utility model Figure 3 Enlarged view of point A.

[0021] In the diagram: 1. Frame; 2. Fixing plate; 3. Lifting frame; 4. Hydraulic cylinder; 5. Lifting plate; 6. Upper shaft seat; 7. Upper roller; 8. Auxiliary wheel; 9. Guide mechanism; 10. Mounting seat; 11. Lower shaft seat; 12. Lower roller; 13. Stainless steel strip; 91. Slide groove; 92. Ball bearing; 93. Protrusion; 94. Slide seat; 95. Support block; 96. Guide rod; 97. Spring; 98. Fixing block; 99. Sponge pad; 991. Through groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 , Figure 2 A steel strip longitudinal weld seam rolling device includes a frame 1, a fixed plate 2 fixedly connected to the bottom of the frame 1, and multiple mounting holes evenly distributed on the fixed plate 2. The mounting holes allow the fixed plate 2 to be installed and fixed. A lifting frame 3 is provided at the top of the frame 1, and a hydraulic cylinder 4 is fixedly installed inside the lifting frame 3. A lifting plate 5 is fixedly connected to the lower end of the output end of the hydraulic cylinder 4, and the lifting plate 5 is slidably connected to the lifting frame 3.

[0024] Please see Figure 1 , Figure 2 The lower end of the lifting plate 5 is fixedly installed with an upper shaft seat 6. Inside the upper shaft seat 6, an upper roller 7 is rotatably installed via bearings. Two auxiliary wheels 8 are rotatably installed on the outer side of the upper shaft seat 6. The two auxiliary wheels 8 are symmetrically distributed on the outer side of the upper roller 7. By designing the auxiliary wheels 8, it is ensured that the upper roller 7 is pressed down evenly and without pressure deviation. The lower end of the upper roller 7 contacts a stainless steel strip 13, which contacts the auxiliary wheels 8. The bottom of the stainless steel strip 13 contacts a lower roller 12. The outer side of the lower roller 12 is rotatably installed with a lower shaft seat 11 via bearings. The bottom of the lower shaft seat 11 is fixedly connected to a mounting base 10, which is fixedly installed on the frame 1. A guide mechanism 9 is provided on the lifting plate 5.

[0025] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4The guide mechanism 9 includes a slide groove 91. The lifting frame 3 has a slide groove 91 inside, and a ball bearing 92 is slidably connected inside the slide groove 91. A protrusion 93 contacts the outer side of the ball bearing 92. The protrusion 93 is fixedly connected to the lifting frame 3. There are multiple protrusions 93, evenly distributed inside the lifting frame 3. By designing multiple protrusions 93, the ball bearing 92 can be pushed by the protrusions 93 at different positions when rolling. A slide block 94 is movably sleeved on the outer side of the ball bearing 92. The slide block 94 is slidably connected to the lifting frame 3. The lifting frame 3 has a through groove 991 inside, and the slide block 94 is slidably connected inside the through groove 991. By designing the through groove 991, the slide block 94 can slide inside the through groove 991. The slide block 94 is slidably connected to the lifting plate 5. Next, a support block 95 is movably sleeved on the outer side of the ball bearing 92, and a guide rod 96 is slidably sleeved inside the support block 95. One end of the guide rod 96 is fixedly connected to the slide block 94, and a spring 97 is provided on the outer side of the guide rod 96. One end of the spring 97 is fixedly connected to the slide block 94, and the other end of the spring 97 is fixedly connected to the fixing block 98. By designing the spring 97, the force of the spring 97 can be applied to the slide block 94. The other end of the guide rod 96 is fixedly connected to the fixing block 98, and the fixing block 98 is fixedly connected to the slide block 94. A sponge pad 99 is fixedly connected inside the slide block 94. The sponge pad 99 absorbs lubricating oil and contacts the support block 95 and the ball bearing 92 respectively. By designing the guide mechanism 9, the movement of the lifting plate 5 can be guided.

[0026] The specific implementation process of this utility model is as follows: During the welding process, the longitudinal weld of the stainless steel strip 13 is adjusted to the middle of the rolling wheel, and the stainless steel strip 13 moves at a uniform speed. The speed of the stainless steel strip 13 is adjusted to 4-8 m / min, the hydraulic cylinder 4 extends, and the lifting plate 5 and the upper roller 7 are controlled to descend. The upper roller 7 is parallel to the lower roller 12 and on the same plane. The upper roller 7 is close to the stainless steel strip 13, and the auxiliary wheels on both sides ensure that the upper roller 7 is pressed down evenly without any pressure deviation. The hydraulic cylinder 4 is hydraulically stable and can accurately control the pressure and displacement, and the longitudinal weld is rolled. After the longitudinal weld is rolled once, the upper roller 7 is raised and removed from the stainless steel strip 13. The deformation of the longitudinal weld of the stainless steel strip 13 is detected. If the deformation of the longitudinal weld is greater than 0.1 mm, the upper roller 7 is pressed down again, the pressure of the hydraulic cylinder 4 is increased, and the longitudinal weld is rolled again until the deformation of the longitudinal weld is less than 0.1 mm. The longitudinal weld processing process is completed, and the next processing step is carried out. Using equipment to roll welds significantly shortens the weld processing time, increases efficiency by more than 5 times, and saves a lot of manpower and resources. By replacing manual labor with mechanical equipment, the hydraulic system can precisely control the rolling force, ensuring uniform weld processing results, reducing the risk of steel strip damage, and guaranteeing the quality of steel strip welds.

[0027] During the movement of the lifting plate 5, the lifting plate 5 will drive the slide 94 to move, and the slide 94 will drive the ball 92 to slide along the slide groove 91. During guidance, the rolling friction of the ball 92 replaces the sliding friction, which can reduce the friction force during guidance and improve the service life of the guide assembly. During the rolling process, the ball 92 will contact the protrusion 93, and the protrusion 93 will push the ball 92. The ball 92 will push the support block 95 to slide along the guide rod 96. The support block 95 will compress the spring 97. Subsequently, the support block 95 and the ball 92 will both compress the sponge pad 99, which can squeeze out the lubricating oil stored inside the sponge pad 99, which can automatically lubricate the ball 92 and further reduce the friction force during guidance. When the ball 92 separates from the protrusion 93, the elastic action of the spring 97 can automatically push the support block 95 and the ball 92 to reset.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A steel strip longitudinal weld rolling apparatus comprising a frame (1), characterized in that: A fixing plate (2) is fixedly connected to the bottom of the frame (1). The fixing plate (2) has mounting holes inside. A lifting frame (3) is provided on the top of the frame (1). A hydraulic cylinder (4) is fixedly installed inside the lifting frame (3). A lifting plate (5) is fixedly connected to the lower end of the output end of the hydraulic cylinder (4). The lifting plate (5) is slidably connected to the lifting frame (3). An upper shaft seat (6) is fixedly installed at the lower end of the lifting plate (5). An upper roller (7) is rotatably installed inside the upper shaft seat (6) through a bearing. An auxiliary wheel (8) is rotatably mounted on the outer side of the seat (6). The lower end of the upper roller (7) contacts a stainless steel strip (13). The stainless steel strip (13) contacts the auxiliary wheel (8). The bottom of the stainless steel strip (13) contacts a lower roller (12). A lower bearing seat (11) is rotatably mounted on the outer side of the lower roller (12) via a bearing. A mounting seat (10) is fixedly connected to the bottom of the lower bearing seat (11). The mounting seat (10) is fixedly mounted on the frame (1). A guide mechanism (9) is provided on the lifting plate (5).

2. A strip longitudinal weld rolling apparatus according to claim 1, characterized in that: The number of mounting holes is multiple, and the multiple mounting holes are evenly distributed on the fixing plate (2).

3. A strip longitudinal weld rolling apparatus as defined in claim 1, characterized in that: The number of auxiliary wheels (8) is two, and the two auxiliary wheels (8) are symmetrically distributed on the outside of the upper roller (7).

4. A strip longitudinal weld rolling apparatus as defined in claim 1, characterized in that: The guide mechanism (9) includes a slide groove (91). The slide groove (91) is provided inside the lifting frame (3). A ball bearing (92) is slidably connected inside the slide groove (91). A protrusion (93) contacts the outer side of the ball bearing (92). The protrusion (93) is fixedly connected to the lifting frame (3). A slide block (94) is movably sleeved on the outer side of the ball bearing (92). The slide block (94) is slidably connected to the lifting frame (3) and to the lifting plate (5). A support block (95) is movably sleeved on the outer side of the ball bearing (92). 5) A guide rod (96) is slidably sleeved inside the support block (95). One end of the guide rod (96) is fixedly connected to the slide (94). A spring (97) is provided on the outside of the guide rod (96). A fixing block (98) is fixedly connected to the other end of the guide rod (96). The fixing block (98) is fixedly connected to the slide (94). A sponge pad (99) is fixedly connected inside the slide (94). The sponge pad (99) absorbs lubricating oil. The sponge pad (99) is in contact with the support block (95) and the ball (92) respectively.

5. A strip longitudinal weld rolling apparatus according to claim 4, characterized in that: The number of the protrusions (93) is multiple, and the multiple protrusions (93) are evenly distributed inside the lifting frame (3).

6. A strip longitudinal weld rolling apparatus as defined in claim 4, characterized in that: One end of the spring (97) is fixedly connected to the slide (94), and the other end of the spring (97) is fixedly connected to the fixing block (98).

7. A strip longitudinal weld rolling apparatus as defined in claim 1 wherein: The lifting frame (3) has a through groove (991) inside, and a slide block (94) is slidably connected inside the through groove (991).

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