Variable pitch slitting apparatus for brass strip

Abstract

The application discloses a variable-distance slitting device for brass strip production, which comprises a support frame horizontally placed on the ground, a mounting frame rotatably arranged at the inner side of the right end of the support frame, a pay-off roller rotatably mounted in the mounting frame, a winding roller driven by a motor rotatably mounted at the inner side of the left end of the support frame, a fixed plate horizontally arranged and fixedly mounted at the middle position in the support frame, and slitting blades equidistantly arranged and mounted above the fixed plate. The variable-distance slitting device for brass strip production adopts a novel structure design, the slitting blades can slide on the adjusting slide, so that the edge distance is achieved, and in the process, the brass strip passes through the first guide roller and the second guide roller, the brass strip is extruded and flattened by the first guide roller, meanwhile, the heating wire in the first guide roller heats the brass strip, heat is transferred to the brass strip by the first guide roller, the internal stress of the heated brass strip is eliminated, and the flattening effect is improved.

Description

Technical Field

[0001] This invention relates to the field of brass strip processing technology, specifically to a variable-pitch slitting device for brass strip production. Background Technology

[0002] Brass strip is a flat, long strip of metal material made of brass. It is produced by rolling, stretching and other processes to produce strip products of specific thickness and width. The processing involves multiple steps, and in actual processing, these steps can be combined into one machine tool to improve processing efficiency.

[0003] In the prior art, Chinese Patent Application No. CN202010421944.1 discloses an uncoiling and edge-trimming forming device for composite brass strip, including an edge-trimming table set on a base, a lifting and cutting mechanism set on the edge-trimming table, including a lifting plate that can be lifted and lowered towards the edge-trimming table surface, two cutting machines that can move towards each other along the width direction of the edge-trimming table are set below the lifting plate, the edge-trimming table is provided with a passage for avoiding the rotation of the working end of each cutting machine and for the edge of the brass strip to move out in the width direction, a leveling mechanism symmetrically set on the edge-trimming table and located on both sides of the lifting assembly, including a bottom pressure roller and a top pressure roller, there is a certain gap between the bottom pressure roller and the top pressure roller for the brass strip to pass through, the bottom pressure roller and the top pressure roller are arranged vertically correspondingly, and a tensioning mechanism symmetrically set on the base and located on both sides of the edge-trimming table.

[0004] In the prior art, Chinese patent application number CN202010141089.9 discloses a brass sheet and strip production device and its process, including a base, on which a rolling mill roll, a grinding device and a cutting device are installed. The rolling mill roll and the cutting device are respectively arranged on both sides of the grinding device. The grinding device includes a first grinding disc, a second grinding disc, uprights, a support plate and a moving column. Two first grinding discs and two second grinding discs are respectively arranged and are arranged crosswise. The first grinding disc is located below the second grinding disc, and two uprights are arranged on both sides of the first grinding disc and the second grinding disc, realizing a series of procedures for rolling, grinding and cutting brass sheet and strip.

[0005] In the prior art, a Chinese patent with the application number CN202120807296.3 discloses a device for unwinding, trimming and forming a composite brass strip, which includes a leveling mechanism, a waste collection mechanism and a winding mechanism. A first slideway is provided on the top of the leveling mechanism and the winding mechanism, and a first slide bar is arranged on the first slideway. A pay-off reel, a first leveling shaft, a second leveling shaft and a third leveling shaft are arranged in the leveling mechanism. The brass strip edge waste after cutting enters the collection box through the discharge port for collection. After trimming, the brass strip is tensioned for the second time in an equilateral triangle shape by the fourth leveling shaft, the fifth leveling shaft and the sixth leveling shaft and then wound by the winding reel to improve the winding effect. And when winding, it is first pressed by the second pressing device to prevent displacement during winding and affect the winding effect.

[0006] Combined with the above materials, it can be seen that in the prior art, operations such as slitting and grinding can generally be combined for processing. However, in actual use, since the brass strip is a thin sheet structure, it is prone to deformation during storage and processing, which affects the flatness. The unflat brass strip is prone to interlayer damage (that is, frictional damage between adjacent layers of brass strips) after winding. Summary of the Invention

[0007] The purpose of the present invention is to provide a variable pitch slitting device for brass strip production to solve the problems raised in the above background technology.

[0008] To achieve the above purpose, the present invention provides the following technical solution: A variable pitch slitting device for brass strip production includes a support frame horizontally placed on the ground. An installation frame is rotatably installed inside the right end of the support frame, and a pay-off roll is rotatably installed in the installation frame. And a winding roll driven by a motor is rotatably installed inside the left end of the support frame. A horizontally arranged fixed plate is fixedly installed at the middle position inside the support frame, and equally spaced slitting blades are installed above the fixed plate. And the slitting blades are slidably installed between the adjusting slideways fixedly installed on the upper surface of the fixed plate. An installation frame in a "hui" shape structure is installed above the middle position of the fixed plate, and grinding blocks are fixedly installed on the upper and lower inner walls of the installation frame. A reciprocating mechanism for driving the installation frame to move is arranged below the fixed plate. An adsorption mechanism for collecting grinding debris is arranged on the upper surface of the installation frame. A first guide roll and a second guide roll are rotatably installed inside the support frame. The first guide roll clamps and extrudes and levels the brass strip, and a heating wire is fixedly installed inside the first guide roll.

[0009] Preferably, the adsorption mechanism includes a vacuum cleaner fixedly installed on the upper surface of the installation frame, and the vacuum cleaner is connected to the air inlet of a negative pressure pump fixedly installed on the upper surface of the installation frame through a pipeline.

[0010] Preferably, the first guide roller has through holes that are equally spaced on its side, and the first guide roller is rotatably mounted to the mounting base, and the mounting base is fixedly mounted on the inner side wall of the support frame.

[0011] Preferably, a connecting shaft is coaxially fixedly installed on the outside of the first guide roller and communicates with it, and the connecting shaft is hollow in whole, and a communicating groove is opened at the rear end of the connecting shaft.

[0012] Preferably, a first connecting pipe is fixedly installed on the upper end of the mounting base and communicates with it, and the first connecting pipe is connected to the air inlet of the negative pressure pump.

[0013] Preferably, the reciprocating mechanism includes a movable slider fixedly installed on the lower surface of the mounting frame, and the movable slider is slidably connected to a limiting groove formed inside the fixed plate.

[0014] Preferably, a reciprocating lead screw that is rotatably connected to the support frame is installed through a thread inside the movable slider, and the reciprocating lead screw rotates synchronously with the first guide roller via a synchronous belt.

[0015] Preferably, a collection box is fixedly installed inside the lower end of the support frame, and flushing nozzles corresponding to the brass strips are fixedly installed inside the front and rear sides of the support frame, and the flushing nozzles are connected to the collection box through a delivery pipe.

[0016] Preferably, the collection box and the water leakage hole opened inside the fixed plate are vertically corresponding to each other, and the heat exchange pipe with a bent structure is fixedly installed inside the collection box, and the front end of the heat exchange pipe is connected to the air outlet of the negative pressure pump through the second connecting pipe.

[0017] Preferably, the rear end of the heat exchange pipe is fixedly connected to a third connecting pipe, and the third connecting pipe is connected to the drying nozzle, and the drying nozzle is fixedly installed on the inner side wall of the support frame.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: the variable pitch slitting equipment for brass strip production adopts a novel structural design, the specific details of which are as follows:

[0019] 1. When the brass strip unwound by the unwinding roller passes through the slitting blade, it is slit and then wound into the winding roller. The slitting blade can slide on the adjusting slide to achieve the edge distance. During this process, the brass strip passes through the first guide roller and the second guide roller. The first guide roller squeezes the brass strip to flatten it. At the same time, the heating wire inside the first guide roller heats it and transfers the heat to the brass strip through the first guide roller. The heated brass strip eliminates internal stress and improves the flattening effect.

[0020] Furthermore, during the conveying process, when the brass strip passes through the inside of the mounting frame, the surface of the brass strip is polished by the grinding blocks inside the mounting frame to improve its surface smoothness. During this process, the first guide roller drives the reciprocating screw to rotate through the synchronous belt. As the reciprocating screw rotates, it drives the movable slider installed by the threaded rod on its outside to move back and forth in the limit slide groove. The movable slider drives the mounting frame to move back and forth synchronously, thereby making the grinding blocks inside the mounting frame wear more evenly.

[0021] Furthermore, during the polishing process of the brass strip, the negative pressure pump above the mounting frame is turned on. The negative pressure pump creates a negative pressure at the vacuum cleaner position, and the debris generated during polishing is sucked in under the negative pressure to avoid affecting subsequent operations.

[0022] 2. After the brass strip is cut, it passes through the rinsing nozzle. At this time, the water pump connected to the conveying pipe is turned on to transport the water in the collection tank to the rinsing nozzle through the conveying pipe and spray it out. The water flow is used to rinse the surface of the brass strip and clean the lubricating oil and other dirt left on the surface of the brass strip during production.

[0023] Furthermore, one of the air inlets of the negative pressure pump is connected to the mounting base through the first connecting pipe, and the mounting base is connected to the first guide roller through the connecting shaft. Under the action of the negative pressure pump, the air inside the first guide roller (the air inside the first guide roller is heated) is extracted. The extracted air enters the heat exchange pipe through the second connecting pipe and flows into the heat exchange pipe. The heat exchange pipe exchanges heat with the water in the collection box, thereby heating the water. The heated water has a better oil removal effect.

[0024] Furthermore, the air in the heat exchange pipe is delivered to the drying nozzle through the third connecting pipe and sprayed out, thereby using the sprayed airflow to dry the cleaned brass strip. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the internal structure of the support frame of the present invention;

[0027] Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A in the middle;

[0028] Figure 4 This is a schematic diagram of the upper surface structure of the fixing plate of the present invention;

[0029] Figure 5 For the present invention Figure 4 Enlarged structural diagram at point B;

[0030] Figure 6This is a schematic diagram of the lower surface structure of the fixing plate of the present invention;

[0031] Figure 7 This is a schematic diagram of the mounting frame structure of the present invention;

[0032] Figure 8 This is a schematic diagram of the internal structure of the first guide roller of the present invention;

[0033] Figure 9 For the present invention Figure 8 Enlarged structural diagram at point C;

[0034] Figure 10 This is a schematic diagram of the internal structure of the mounting base of the present invention;

[0035] Figure 11 This is a schematic diagram of the installation location of the heat exchange pipeline of the present invention.

[0036] In the diagram: 1. Support frame; 2. Mounting frame; 3. Unwinding roller; 4. Rewinding roller; 5. Fixing plate; 6. Drain hole; 7. Sliding blade; 8. Adjusting slide; 9. First guide roller; 10. Second guide roller; 11. Mounting frame; 12. Grinding block; 13. Moving slider; 14. Limiting groove; 15. Reciprocating screw; 16. Synchronous belt; 17. Vacuum cleaner; 18. Negative pressure pump; 19. Heating wire; 20. Through hole; 21. Mounting base; 22. Connecting shaft; 23. Connecting groove; 24. First connecting pipe; 25. Flushing nozzle; 26. Collection box; 27. Conveying pipe; 28. Heat exchange pipe; 29. ​​Second connecting pipe; 30. Third connecting pipe; 31. Drying nozzle. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Example 1: Please refer to Figures 1-4, in order to achieve the purpose of leveling the brass strip during the conveying process, the following technical solutions are provided, specifically disclosed: including a support frame 1 horizontally placed on the ground, an installation frame 2 is rotatably installed inside the right end of the support frame 1, a pay-off roll 3 is rotatably installed in the installation frame 2, and a take-up roll 4 driven by a motor is rotatably installed inside the left end of the support frame 1. A horizontally arranged fixed plate 5 is fixedly installed at the middle position inside the support frame 1, and slitting blades 7 arranged at equal intervals are installed above the fixed plate 5. The slitting blades 7 are slidably installed between the adjustment slides 8 fixedly installed on the upper surface of the fixed plate 5. A first guide roller 9 and a second guide roller 10 are rotatably installed inside the support frame 1. The first guide roller 9 clamps and extrudes and levels the brass strip, and a heating wire 19 is fixedly installed inside the first guide roller 9.

[0039] When using the device, first install the brass strip coil in the installation frame 2, then pull the brass strip to the position of the take-up roll 4, and use the motor to drive the take-up roll 4 to rotate to realize the winding operation of the brass strip. The brass strip during the winding process passes through the position of the slitting blades 7, and the slitting blades 7 are used to slit the brass strip (by sliding the slitting blades 7 on the adjustment slides 8 to adjust the distance between adjacent slitting blades 7 to achieve the purpose of variable distance). The brass strip is limited and guided by the first guide roller 9 and the second guide roller 10 during the conveying process, and the brass strip is leveled by the extrusion force of the first guide roller 9. During this process, the first guide roller 9 is heated by the heating wire 19, and the brass strip is heated by the first guide roller 9. The heated brass strip eliminates internal stress, thereby achieving a better leveling effect.

[0040] Embodiment Two: Please refer to Figures 5-7 , in order to achieve the purpose of grinding and polishing the surface of the brass strip, the following technical solutions are provided, specifically disclosed: an installation frame 11 with a "return" - shaped structure is installed above the middle position of the fixed plate 5, and grinding blocks 12 are fixedly installed on the inner walls of the upper and lower sides of the installation frame 11. A reciprocating mechanism for driving the installation frame 11 to move is arranged below the fixed plate 5; the reciprocating mechanism includes a moving slider 13 fixedly installed on the lower surface of the installation frame 11, and the moving slider 13 is slidably connected to a limiting chute 14 opened inside the fixed plate 5. A reciprocating screw rod 15 rotatably connected to the support frame 1 is installed through the moving slider 13 in a threaded manner, and the reciprocating screw rod 15 is synchronously rotated with the first guide roller 9 through a synchronous belt 16.

[0041] During the conveying process of the brass strip, it passes through the interior of the mounting frame 11. The grinding block 12 inside the mounting frame 11 is used to grind and polish the surface of the brass strip, making the surface of the brass strip smoother. As the first guide roller 9 rotates, it drives the synchronous belt 16 on its side to rotate. The synchronous belt 16 drives the reciprocating screw 15 to rotate. As the reciprocating screw 15 rotates, it drives the movable slider 13, which is installed through the thread on its outside, to slide in the limiting groove 14 opened on the inner side of the fixed plate 5. Thus, the mounting frame 11 above the movable slider 13 moves left and right synchronously, making the grinding block 12 inside the mounting frame 11 contact the surface of the brass strip more evenly.

[0042] Example 3: Please refer to Figures 8-11 To improve the cleaning effect of oil stains, this embodiment provides the following technical solution, specifically: An adsorption mechanism for collecting grinding debris is provided on the upper surface of the mounting frame 11. The adsorption mechanism includes a vacuum cleaner 17 fixedly mounted on the upper surface of the mounting frame 11, and the vacuum cleaner 17 is connected to the air inlet of a negative pressure pump 18 fixedly mounted on the upper surface of the mounting frame 11 via a pipe. Through holes 20 are equally spaced on the side of the first guide roller 9, and the first guide roller 9 is rotatably mounted to the mounting base 21. The mounting base 21 is fixedly mounted on the inner wall of the support frame 1. A connecting shaft 22 coaxially connected to the first guide roller 9 is fixedly mounted on its exterior. The connecting shaft 22 is hollow, and a connecting groove 23 is provided at its rear end. The upper end of the mounting base 21 is fixedly mounted to… The first connecting pipe 24 is connected to the air inlet of the negative pressure pump 18. The collection box 26 is fixedly installed at the lower end of the support frame 1. The flushing nozzles 25 corresponding to the brass strips are fixedly installed inside the front and rear sides of the support frame 1. The flushing nozzles 25 are connected to the collection box 26 through the conveying pipe 27. The collection box 26 is vertically aligned with the water leakage hole 6 opened inside the fixed plate 5. The heat exchange pipe 28 with a bent structure is fixedly installed inside the collection box 26. The front end of the heat exchange pipe 28 is connected to the air outlet of the negative pressure pump 18 through the second connecting pipe 29. The rear end of the heat exchange pipe 28 is fixedly connected to the third connecting pipe 30. The third connecting pipe 30 is connected to the drying nozzle 31. The drying nozzle 31 is fixedly installed on the inner side wall of the support frame 1.

[0043] During the polishing of the brass strip, the negative pressure pump 18 above the mounting frame 11 is activated. The negative pressure pump 18 creates a negative pressure at the vacuum cleaner 17, causing it to suck in the debris generated during polishing (the vacuum cleaner 17 has an internal filter screen to filter the debris). Simultaneously, the water pump connected to the delivery pipe 27 is activated, delivering water from the collection tank 26 to the rinsing nozzle 25 via the delivery pipe 27. The sprayed water rinses the surface of the brass strip (a certain amount of lubricating oil is used in the previous production process, leaving residue on the surface; the rinsed water returns to the collection tank 26 through the drain hole 6). Meanwhile, during the operation of the negative pressure pump 18, the water inside the first guide roller 9 is drawn through the first connecting pipe 24. Air is extracted from the first guide roller 9 (a through hole 20 is opened on the surface of the first guide roller 9 to allow external air to enter and maintain pressure balance; the air inside the first guide roller 9 enters the connecting shaft 22, and then enters the mounting base 21 through the connecting groove 23 at the rear end of the connecting shaft 22, and finally enters the first connecting pipe 24). The extracted hot air is transported to the heat exchange pipe 28 through the second connecting pipe 29. The heat exchange pipe 28 exchanges heat with the water in the collection box 26 to achieve the purpose of heating the water in the collection box 26. The heated water has a better oil removal effect. The air in the heat exchange pipe 28 then enters the drying nozzle 31 through the third connecting pipe 30 and is sprayed out. The sprayed air (which still has a certain temperature) is used to dry the surface of the brass strip.

[0044] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0045] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A variable-length slitting device for brass strip production, comprising a support frame (1) placed horizontally on the ground, a mounting frame (2) rotatably arranged inside the right end of the support frame (1), a pay-off roller (3) rotatably mounted in the mounting frame (2), and a winding roller (4) driven by a motor rotatably mounted inside the left end of the support frame (1), characterized in that, It further includes: A horizontally arranged fixed plate (5) is fixedly installed at the middle position inside the support frame (1). Above the fixed plate (5), slitting blades (7) arranged at equal intervals are installed, and the slitting blades (7) are slidably installed between the adjusting slideways (8) fixedlyably fixedly installed on the upper surface of the fixed plate (5). An installation frame (11) in a "return" - shaped structure is installed above the middle position of the fixed plate (5). Grinding blocks (12) are fixedly installed on the inner walls of the upper and lower sides of the installation frame (11). A reciprocating mechanism for driving the installation frame (11) to move is arranged below the fixed plate (5). An adsorption mechanism for collecting grinding debris is arranged on the upper surface of the installation frame (11). The adsorption mechanism includes a vacuum cleaner (17) fixedly installed on the upper surface of the installation frame (11). The vacuum cleaner (17) is connected to the air inlet of a negative pressure pump (18) fixedly installed on the upper surface of the installation frame (11) through a pipeline. Through - holes (20) arranged at equal intervals are opened on the side surface of the first guide roller (9). The first guide roller (9) is rotatably installed with a mounting seat (21), and the mounting seat (21) is fixedly installed on the inner side wall of the support frame (1). A first connecting pipe (24) communicating with it is fixedly installed at the upper end of the mounting seat (21), and the first connecting pipe (24) is connected to the air inlet of the negative pressure pump (18). The first guide roller (9) and the second guide roller (10) are rotatably installed inside the support frame (1). The first guide roller (9) clamps and flattens the brass strip, and a heating wire (19) is fixedly installed inside the first guide roller (9). A collection box (26) is fixedly installed at the lower end inside the support frame (1). Flushing nozzles (25) corresponding to the brass strip are fixedly installed inside the front and rear sides of the support frame (1). The flushing nozzles (25) are connected to the collection box (26) through a delivery pipe (27). The collection box (26) and the water leakage holes (6) opened inside the fixed plate (5) are vertically corresponding. A heat - exchange pipeline (28) in a bent - shape structure is fixedly installed inside the collection box (26). The front end of the heat - exchange pipeline (28) is connected to the air outlet of the negative pressure pump (18) through a second connecting pipe (29). The rear end of the heat - exchange pipeline (28) is fixedly connected to a third connecting pipe (30), and the third connecting pipe (30) is connected to a drying nozzle (31), and the drying nozzle (31) is fixedly installed on the inner side wall of the support frame (1).

2. A distance varying slitting apparatus for brass strip production as claimed in claim 1 wherein: A connecting shaft (22) coaxially and fixedly installed outside the first guide roller (9) is in communication with it. The connecting shaft (22) is integrally hollow, and a communication groove (23) is opened at the rear end of the connecting shaft (22).

3. A distance varying slitting apparatus for brass strip production as claimed in claim 2 wherein: The reciprocating mechanism includes a moving slider (13) fixedly installed on the lower surface of the installation frame (11), and the moving slider (13) is slidably connected to a limiting chute (14) opened inside the fixed plate (5).

4. A distance varying slitting apparatus for brass strip production as claimed in claim 3 wherein: The movable slider (13) has a reciprocating screw (15) that is rotatably connected to the support frame (1) through a thread inside, and the reciprocating screw (15) rotates synchronously with the first guide roller (9) through a synchronous belt (16).

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