Preparation method and preparation device of high-roughness stamping mesh belt

Abstract

The invention discloses a high-roughness stamping mesh belt preparation method and device, and relates to the technical field of lead belt machining, nine sets of belt rolling mechanisms, a mesh stamping mechanism and a sand blasting mechanism are included, and rollers of the seventh set of belt rolling mechanisms and the ninth set of belt rolling mechanisms all adopt rollers with surface roughness. The surface roughness of the mesh belt is greatly improved and the contact area between the mesh belt and the lead paste is increased by arranging the roller with the surface roughness in the belt rolling mechanism and performing subsequent sand blasting treatment, so that the binding force between the mesh belt and the lead paste is remarkably enhanced, and the service life of the mesh belt is prolonged. The problems of insufficient adhesive force and easy falling of the lead paste caused by smooth surface of the mesh belt in the traditional process are effectively solved, and the quality of products such as lead-acid storage battery polar plates is improved.

Description

Technical Field

[0001] The invention relates to the technical field of lead strip processing, and in particular to a method for preparing a high-roughness stamping mesh strip and a preparation device thereof. Background Art

[0002] In the production process of lead-acid batteries, lead strip is an important component of the battery plate. The roughness of the lead strip surface is directly related to whether the lead paste can be evenly and firmly attached to it. This is not only related to the process stability and yield rate in the battery manufacturing process, but also largely determines the charging and discharging efficiency, cycle life and overall reliability of the battery during use.

[0003] In the existing lead strip processing technology, the crude lead strip produced by the continuous casting and rolling forming machine has an initial thickness of about 14 mm. After 5-7 rolls, it forms a finished lead strip with a thickness of about 0.65-1.1 mm. However, the current rolling mill usually uses smooth rollers, or only sets a certain roughness on the last roll, which results in a relatively smooth surface of the finished lead strip. When the lead strip is made into a finished mesh belt through the mesh punching process, the surface roughness of the mesh belt is low, resulting in insufficient bonding with the lead paste.

[0004] In practical applications, such as in the manufacturing process of lead-acid battery plates, the mesh belt needs to be tightly combined with the lead paste, but the mesh belt with low surface roughness cannot provide sufficient adhesion, which can easily cause the lead paste to fall off during subsequent processing or use, affecting product quality and production efficiency. Summary of the invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a method for preparing a high-roughness stamping mesh belt and a preparation device thereof, which solves the problem of low surface roughness of the stamping mesh belt and insufficient bonding strength of the lead paste.

[0006] To achieve the above-mentioned purpose, according to an embodiment of the first aspect of the present invention, a high-roughness stamping mesh belt preparation device is proposed, including a strip rolling mechanism, a mesh punching mechanism and a sandblasting mechanism, the strip rolling mechanism is provided with several groups and arranged in a horizontal manner, each group of the strip rolling mechanism includes a base, a support frame, a movable slide and a roller, the support frame is vertically fixedly connected to the base, a vertical slide groove is provided on the side of the support frame, the two movable slides are relatively slidably arranged in the vertical slide groove, the two rollers are horizontally connected to the corresponding movable slides for rotation, and an adjustment component for adjusting the spacing between the two movable slides is provided in the vertical slide groove, wherein at least two groups of the strip rolling mechanisms use rollers with rough surfaces.

[0007] As a further solution of the present invention: the adjustment assembly includes an adjustment screw, an adjustment wheel, an adjustment motor, a driving wheel and a synchronous belt. The adjustment screw is rotatably arranged in a vertical state in a vertical slide groove, and the movable slide plate is provided with a matching hole that matches with the adjustment screw thread. The adjustment screw is provided with a first thread and a second thread that are symmetrically distributed and have opposite spiral directions, and the matching holes of the two movable slide plates are matched with corresponding threads respectively. The adjustment wheel is coaxially fixedly connected to the adjustment screw, the adjustment screw is fixedly connected to the support frame, the driving wheel is coaxially fixedly connected to the output end of the adjustment motor, and the synchronous belt is wound between the adjustment wheel and the driving wheel.

[0008] As a further solution of the present invention: the punching mechanism includes a punching table, a punching machine, a guide roller, an upper mold, a lower mold and a collection frame, the punching machine is fixedly connected to the punching table, the two guide rollers are horizontally rotatably arranged on both sides of the top of the punching table, the lower mold is fixedly arranged on the top of the punching table, the upper mold is fixedly arranged at the output end of the punching machine and is located directly above the lower mold. A collection cavity is provided in the lower mold, a through slot connected to the collection cavity is provided on the top of the punching table, and the collection frame is arranged below the through slot.

[0009] As a further solution of the present invention: the sandblasting mechanism includes a sandblasting machine conveyor belt, a sandblasting box and a sand collecting box, the sandblasting box is arranged on the top of the sandblasting machine conveyor belt, a nozzle is arranged in the sandblasting box, the sand collecting box is arranged at the bottom of the sandblasting machine conveyor belt, a sandblasting pump is fixedly arranged in the sand collecting box, the input end of the sandblasting pump is connected to the sand collecting box, and the output end of the sandblasting pump is connected to the nozzle. An observation window is opened on the side of the sandblasting box.

[0010] As a further solution of the present invention: the strip rolling mechanisms are provided with nine groups in total, wherein the rollers of the strip rolling mechanisms in the seventh group and the ninth group are rollers with roughened surfaces.

[0011] A method for preparing a high-roughness stamping mesh belt comprises the following steps:

[0012] Step S1: passing the lead strip through nine groups of strip rolling mechanisms in sequence, wherein the surfaces of the rollers of the seventh and ninth groups of strip rolling mechanisms have a preset roughness, and the lead strip is rolled by the rollers to form a roughness on the surface of the lead strip;

[0013] Step S2: feeding the lead strip rolled in step S1 into a mesh punching mechanism, and using the mesh punching mechanism to punch the lead strip into a mesh strip;

[0014] Step S3: sending the mesh belt obtained in step S2 to a sandblasting mechanism, and further improving the roughness of the mesh belt surface through the sandblasting mechanism.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. By setting a roller with a rough surface in the strip rolling mechanism and subsequent sandblasting treatment, the roughness of the mesh belt surface is greatly improved, and the contact area between the mesh belt and the lead paste is increased, thereby significantly enhancing the bonding force between the mesh belt and the lead paste. This effectively solves the problem of insufficient adhesion and easy falling off of the lead paste due to the smooth surface of the mesh belt in the traditional process, and improves the quality of products such as lead-acid battery plates.

[0017] 2. The adjustment components in the strip rolling mechanism can conveniently and accurately adjust the roller spacing, which can adapt to the rolling requirements of lead strips of different thicknesses, improve the versatility and flexibility of the device, and reduce production costs.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 The present invention is a three-dimensional structural schematic diagram of a method for preparing a high-roughness stamping mesh belt and a preparation device thereof.

[0021] Figure 2 It is a three-dimensional structural schematic diagram of the strip rolling mechanism in the present invention.

[0022] Figure 3 It is a partial cross-sectional view of the strip rolling mechanism in the present invention.

[0023] Figure 4 It is a three-dimensional structural schematic diagram of the screen punching mechanism in the present invention.

[0024] Figure 5 It is a partial cross-sectional view of the screen punching mechanism in the present invention.

[0025] Figure 6 It is a three-dimensional structural schematic diagram of the sandblasting mechanism in the present invention.

[0026] Reference numerals include:

[0027] 1. Strip rolling mechanism; 2. Screen punching mechanism; 3. Sandblasting mechanism; 4. Base; 5. Support frame; 6. Movable slide plate; 7. Roller; 8. Vertical slide; 9. Adjustment assembly; 10. Adjustment screw rod; 11. Adjustment wheel; 12. Adjustment motor; 13. Driving wheel; 14. Synchronous belt; 15. Punching table; 16. Punching machine; 17. Guide roller; 18. Upper mold; 19. Lower mold; 20. Collecting frame; 21. Collecting chamber; 22. Through slot; 23. Sandblasting machine conveyor belt; 24. Sandblasting box; 25. Sand collecting box; 26. Observation window. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] like Figures 1 to 6 As shown, a high-roughness stamping mesh belt preparation device includes a strip rolling mechanism 1, a mesh punching mechanism 2 and a sandblasting mechanism 3. The strip rolling mechanism 1 uses a roller 7 with a rough surface to form roughness on the surface of the lead belt under pressure, completing the process of rolling and giving preliminary roughness to the lead belt. The mesh punching mechanism 2 processes the lead belt according to the preset mesh belt shape and structure through a stamping process, and stamps the lead belt into a mesh belt, thereby realizing the shape transformation from the lead belt to the mesh belt. The sandblasting mechanism 3 uses the impact of sand particles to further improve the roughness of the mesh belt surface, so that the mesh belt reaches the final required high roughness standard.

[0030] Specifically, the strip rolling mechanism 1 is provided with several groups and arranged in a transverse manner. Each group of the strip rolling mechanism 1 includes a base 4, a support frame 5, a movable slide 6 and a roller 7. The support frame 5 is vertically fixedly connected to the base 4. A vertical slide groove 8 is provided on the side of the support frame 5. Two movable slides 6 are relatively slidably arranged in the vertical slide groove 8. Two rollers 7 are horizontally connected to the corresponding movable slides 6 for rotation. An adjustment component 9 for adjusting the distance between the two movable slides 6 is provided in the vertical slide groove 8. At least two groups of the strip rolling mechanisms 1 use rollers 7 with rough surfaces.

[0031] The adjustment assembly 9 includes an adjustment screw 10, an adjustment wheel 11, an adjustment motor 12, a driving wheel 13 and a synchronous belt 14. The adjustment screw 10 is rotatably arranged in a vertical state in the vertical slide 8, and the movable slide 6 is provided with a matching hole that matches the thread of the adjustment screw 10. The adjustment screw 10 is provided with a first thread and a second thread that are symmetrically distributed and have opposite spiral directions, and the matching holes of the two movable slides 6 match the corresponding threads respectively. The adjustment wheel 11 is coaxially fixedly connected to the adjustment screw 10, the adjustment screw 10 is fixedly connected to the support frame 5, the driving wheel 13 is coaxially fixedly connected to the output end of the adjustment motor 12, and the synchronous belt 14 is wound between the adjustment wheel 11 and the driving wheel 13.

[0032] When it is necessary to roll lead strips of different thicknesses, start the adjusting motor 12. The output shaft of the adjusting motor 12 drives the driving wheel 13 to rotate, and the driving wheel 13 transmits the rotation to the adjusting wheel 11 through the transmission action of the synchronous belt 14. Since the adjusting wheel 11 is coaxially fixed with the adjusting screw 10, the adjusting screw 10 rotates accordingly. The first thread and the second thread with opposite spiral directions, which are symmetrically distributed on the adjusting screw 10, are precisely threadedly matched with the matching holes on the movable slide 6. As the adjusting screw 10 rotates, the two movable slides 6 move relative to each other in opposite directions in the vertical slide 8, thereby realizing the precise adjustment of the distance between the two rollers 7 to meet the rolling requirements of lead strips of different thicknesses.

[0033] By arranging a roller 7 with a rough surface in the strip rolling mechanism 1 and performing subsequent sandblasting, the roughness of the mesh belt surface is greatly improved, and the contact area between the mesh belt and the lead paste is increased, thereby significantly enhancing the bonding force between the mesh belt and the lead paste. This effectively solves the problem of insufficient adhesion and easy falling off of the lead paste due to the smooth surface of the mesh belt in the traditional process, thereby improving the quality of products such as lead-acid battery plates.

[0034] The adjusting assembly 9 in the strip rolling mechanism 1 can conveniently and accurately adjust the spacing between the rollers 7, and can adapt to the rolling requirements of lead strips of different thicknesses, thereby improving the versatility and flexibility of the device and reducing production costs.

[0035] refer to Figure 4 and Figure 5 As shown, in some specific embodiments, the punching mechanism 2 includes a punching table 15, a punching machine 16, a guide roller 17, an upper mold 18, a lower mold 19 and a collecting frame 20. The punching machine 16 is fixedly connected to the punching table 15 to provide the power required for punching.

[0036] Two guide rollers 17 are rotatably arranged at both sides of the top of the punching table 15 in a horizontal state. The function of the guide rollers 17 is to guide the lead strip into the punching area, that is, the area between the upper mold 18 and the lower mold 19.

[0037] The lower die 19 is fixedly arranged on the top of the punching table 15, and the upper die 18 is fixedly arranged at the output end of the punching machine 16 and is located directly above the lower die 19. When the punching machine 16 is started, the upper die 18 moves downward under the drive of the punching machine 16, cooperates with the lower die 19, and applies pressure to the lead strip between the two. Under the action of pressure, the lead strip is punched into a mesh strip with a specific shape and structure.

[0038] A collecting cavity 21 is provided in the lower die 19, a through slot 22 communicating with the collecting cavity 21 is provided on the top of the punching table 15, and a collecting frame 20 is arranged below the through slot 22. During the punching process, the waste generated by the punching will fall into the collecting cavity 21 through the through slot 22, and finally be collected in the collecting frame 20 for centralized processing. This ensures the smooth progress of the punching work, and can effectively collect the waste, thereby improving the material utilization rate.

[0039] refer to Figure 6 As shown, in some specific embodiments, the sandblasting mechanism 3 includes a sandblasting machine conveyor belt 23, a sandblasting box 24 and a sand collecting box 25. The sandblasting box 24 is arranged on the top of the sandblasting machine conveyor belt 23. The sandblasting machine conveyor belt 23 is used to carry and transport the mesh belt so that it can pass smoothly through the sandblasting box 24. A nozzle is arranged in the sandblasting box 24, and the nozzle is responsible for spraying sand onto the surface of the mesh belt. The sand collecting box 25 is arranged at the bottom of the sandblasting machine conveyor belt 23, and is used to collect the sand falling during the sandblasting process.

[0040] The sand collecting box 25 is fixedly provided with a sand blasting pump, the input end of the sand blasting pump is connected to the sand collecting box 25, and the output end of the sand blasting pump is connected to the nozzle. The sand blasting pump can extract and pressurize the sand in the sand collecting box 25 and transport it to the nozzle through a pipeline to realize the recycling of the sand.

[0041] An observation window 26 is provided on the side of the sandblasting box 24, through which the operator can observe the sandblasting conditions in real time, such as the spraying state of the sand material, the surface treatment effect of the mesh belt, etc., so as to adjust the sandblasting parameters in time.

[0042] refer to Figure 1 As shown, in some specific embodiments, a total of nine groups of strip rolling mechanisms 1 are provided, wherein the rollers 7 of the strip rolling mechanisms 1 in the seventh and ninth groups are rollers 7 with rough surfaces. When the crude lead strip with an initial thickness of about 14 mm produced by the continuous casting and rolling forming machine passes through these strip rolling mechanisms 1 in sequence, the lead strip is first subjected to preliminary thickness rolling by the first few groups of strip rolling mechanisms 1, and the thickness of the lead strip is gradually reduced. When the lead strip reaches the seventh and ninth groups of strip rolling mechanisms 1, the rollers 7 with rough surfaces roll the lead strip to further reduce its thickness to 0.65-1.1 mm, and at the same time, use their own roughness to transfer the roughness to the surface of the lead strip under the action of the rolling force, so that the surface of the lead strip forms a certain degree of roughness.

[0043] A method for preparing a high-roughness stamping mesh belt comprises the following steps:

[0044] Step S1: passing the lead strip through nine groups of strip rolling mechanisms 1 in sequence, wherein the surfaces of the rollers 7 of the seventh and ninth groups of strip rolling mechanisms 1 have a preset roughness, and the lead strip is rolled by the rollers 7 to form a roughness on the surface of the lead strip;

[0045] Step S2: feeding the lead strip rolled in step S1 into the mesh punching mechanism 2, and punching the lead strip into a mesh strip by the mesh punching mechanism 2;

[0046] Step S3: The mesh belt obtained in step S2 is sent to the sandblasting mechanism 3, and the sandblasting mechanism 3 is used to further improve the roughness of the mesh belt surface.

[0047] In order to facilitate the understanding of the embodiments of the present invention by those skilled in the art, the working principle of the embodiments of the present invention is now described in combination with specific application scenarios:

[0048] Step S1: Lead strip rolling and roughness formation: The crude lead strip produced by the continuous casting and rolling forming machine is sequentially fed into nine groups of strip rolling mechanisms 1. During the rolling process, the lead strip first passes through the strip rolling mechanisms 1 of the first few groups of ordinary rollers 7 (smooth surface) for preliminary thickness reduction. When it reaches the strip rolling mechanisms 1 of the seventh and ninth groups of rollers 7 with rough surfaces, the rollers 7 roll the lead strip in thickness while forming roughness on the surface of the lead strip under pressure using the surface roughness, thus completing the process of rolling and preliminary roughness imparting to the lead strip.

[0049] Step S2: punching the lead strip into a mesh strip: after the lead strip is rolled in step S1, its thickness and surface roughness have initially met the requirements. At this time, the lead strip is guided to the punching area of ​​the punching mechanism 2 (the area between the upper mold 18 and the lower mold 19) through the guide roller 17, and the punch press 16 drives the upper mold 18 to punch downward, and cooperates with the lower mold 19 to punch the lead strip into a mesh strip, thereby realizing the shape transformation from the lead strip to the mesh strip. At the same time, the waste generated by the stamping falls into the collection frame 20.

[0050] Step S3: Improve the surface roughness of the mesh belt: Place the mesh belt obtained in step S2 on the conveyor belt 23 of the sandblasting machine, and enter the bottom of the sandblasting box 24 as the conveyor belt moves. The sandblasting pump extracts sand from the sand collecting box 25 and pressurizes it to the nozzle, which sprays the sand at high speed onto the surface of the mesh belt, and further improves the surface roughness of the mesh belt by the impact of the sand particles. The operator can monitor the sandblasting situation in real time through the observation window 26, and accurately adjust the sandblasting pressure and flow according to the material, initial roughness and target roughness requirements of the mesh belt, so that the mesh belt can reach the final required high roughness standard.

[0051] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and range of equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A device for preparing a high-roughness stamping mesh belt, comprising a strip rolling mechanism (1), a mesh punching mechanism (2) and a sandblasting mechanism (3), characterized in that: The strip rolling mechanism (1) is provided with a plurality of groups and arranged in a transverse manner. Each group of the strip rolling mechanism (1) comprises a base (4), a support frame (5), a movable slide plate (6) and a roller (7). The support frame (5) is vertically fixedly connected to the base (4). A vertical slide groove (8) is provided on the side of the support frame (5). Two movable slide plates (6) are relatively slidably arranged in the vertical slide groove (8). Two rollers (7) are horizontally connected to the corresponding movable slide plates (6) in a rotationally matched manner. An adjustment component (9) for adjusting the spacing between the two movable slide plates (6) is provided in the vertical slide groove (8). At least two groups of the strip rolling mechanisms (1) use rollers (7) with rough surfaces.

2. The high-roughness stamping mesh belt preparation device according to claim 1, characterized in that: The adjusting assembly (9) comprises an adjusting screw (10), wherein the adjusting screw (10) is rotatably arranged in a vertical state in a vertical slide groove (8), and the movable slide plate (6) is provided with a matching hole which is threadably matched with the adjusting screw (10).

3. The high-roughness stamping mesh belt preparation device according to claim 2, characterized in that: The adjusting screw rod (10) is provided with a first thread and a second thread which are symmetrically distributed and have opposite spiral directions, and the matching holes of the two movable slide plates (6) are respectively matched with the corresponding threads.

4. The high-roughness stamping mesh belt preparation device according to claim 2, characterized in that: The adjustment assembly (9) further comprises an adjustment wheel (11), an adjustment motor (12), a driving wheel (13) and a synchronous belt (14); the adjustment wheel (11) is coaxially fixedly connected to the adjustment screw rod (10); the adjustment screw rod (10) is fixedly connected to the support frame (5); the driving wheel (13) is coaxially fixedly connected to the output end of the adjustment motor (12); and the synchronous belt (14) is wound between the adjustment wheel (11) and the driving wheel (13).

5. The high-roughness stamping mesh belt preparation device according to claim 1, characterized in that: The mesh punching mechanism (2) comprises a punching platform (15), a punching machine (16), a guide roller (17), an upper die (18) and a lower die (19); the punching machine (16) is fixedly connected to the punching platform (15); the two guide rollers (17) are rotatably arranged on both sides of the top of the punching platform (15) in a horizontal state; the lower die (19) is fixedly arranged on the top of the punching platform (15); and the upper die (18) is fixedly arranged at the output end of the punching machine (16) and is located directly above the lower die (19).

6. The high-roughness stamping mesh belt preparation device according to claim 5, characterized in that: The punching mechanism (2) further comprises a collecting frame (20); a collecting cavity (21) is provided in the lower mold (19); a through slot (22) communicating with the collecting cavity (21) is provided on the top of the punching platform (15); and the collecting frame (20) is arranged below the through slot (22).

7. The high-roughness stamping mesh belt preparation device according to claim 1, characterized in that: The sandblasting mechanism (3) comprises a sandblasting machine conveyor belt (23), a sandblasting box (24) and a sand collecting box (25); the sandblasting box (24) is arranged on the top of the sandblasting machine conveyor belt (23); a nozzle is arranged in the sandblasting box (24); the sand collecting box (25) is arranged at the bottom of the sandblasting machine conveyor belt (23); a sandblasting pump is fixedly arranged in the sand collecting box (25); an input end of the sandblasting pump is connected to the sand collecting box (25); and an output end of the sandblasting pump is connected to the nozzle.

8. The high-roughness stamping mesh belt preparation device according to claim 7, characterized in that: An observation window (26) is provided on the side of the sandblasting box (24).

9. The high-roughness stamping mesh belt preparation device according to claim 1, characterized in that: The strip rolling mechanism (1) is provided with nine groups in total, wherein the rollers (7) of the strip rolling mechanisms (1) in the seventh group and the ninth group are rollers (7) with roughened surfaces.

10. A method for preparing a high-roughness stamping mesh belt, implemented by the high-roughness stamping mesh belt preparation device according to claim 9, characterized in that: The following steps are involved: Step S1: passing the lead strip through nine groups of strip rolling mechanisms (1) in sequence, wherein the surfaces of the rollers (7) of the seventh and ninth groups of strip rolling mechanisms (1) both have a preset roughness, and the lead strip is rolled by the rollers (7) to form a roughness on the surface of the lead strip; Step S2: feeding the lead strip rolled in step S1 into a mesh punching mechanism (2), and punching the lead strip into a mesh strip using the mesh punching mechanism (2); Step S3: The mesh belt obtained in step S2 is sent to a sandblasting mechanism (3), and the roughness of the mesh belt surface is further improved by the sandblasting mechanism (3).

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