A double bottom steel sheet sanding device

Abstract

The utility model relates to steel sheet sand opening device technical field, concretely relates to a kind of double bottom steel sheet sand opening device, for sanding to steel sheet body surface, it is characterized by, including: main body, the front part of protective cover is provided with protective cover;Negative pressure clamp, negative pressure clamp is set in the top of main body, and the included angle of negative pressure clamp and the vertical plane of main body is 20 °-60 °;Sand opening subassembly, it is set in the top of main body and can move up and down and move forward and backward for sanding to the surface of steel sheet body;The back of sand opening subassembly is also provided with the longitudinal moving mechanism that can drive sand opening subassembly to move up and down.Sand belt unit is rotated °, and the vertical plane of negative pressure clamp and main body is °, the included angle of sand belt unit and the vertical plane of main body is 45 °, and the included angle of sand belt and steel sheet surface is 45 ° after sanding, the surface of steel sheet presents fan-shaped and quickly extends outward from circle center, solve subsequent forging and pressing exhaust problem.

Description

Technical Field

[0001] This utility model relates to the technical field of steel sheet sand-opening devices, specifically a multi-layered steel sheet sand-opening device. Background Technology

[0002] In the manufacturing of composite cookware, the composite pot bottom is usually made of steel and aluminum sheets through a hot forging process. To ensure that the steel and aluminum sheets can be tightly bonded during the forging process, sanding the surface of the steel sheet is a key preliminary step.

[0003] Currently, the conventional process for sanding steel sheets involves installing a negative pressure clamp at the center of the main unit. During operation, the sanding belt in the sanding unit moves downwards and contacts the surface of the steel sheet fixed to the clamp. In this process, the sanding belt is perpendicular to the steel sheet surface. Steel sheets treated with this conventional process exhibit surface marks that are small-pitch lines that gradually extend outwards from the center.

[0004] When sandblasted steel and aluminum sheets are forged, the gas trapped between them is forced to slowly escape along a spiral path due to the direction of the sandblasting marks on the steel surface. Because this venting path is relatively long, the gas encounters significant resistance during escape, resulting in poor overall venting performance. This not only reduces the bonding strength between the steel and aluminum sheets, affecting the quality stability of the composite cookware bottom, but may also cause problems such as delamination and deformation during subsequent use, thereby reducing the lifespan and performance of the composite cookware. Utility Model Content

[0005] The purpose of this utility model is to provide a sandblasting device for composite bottom steel sheets. By rotating the sanding belt unit by 45°, and with the negative pressure clamp at 45° to the vertical plane of the main body, the angle between the sanding belt unit and the vertical plane of the main body at 45°, and the angle between the sandblasting belt and the surface of the steel sheet at 45°, the surface of the steel sheet will extend outward in a fan shape from the center of the circle, thus solving the problem of poor exhaust in subsequent forging.

[0006] To address the problems of existing technologies, this utility model provides a sandblasting device for sandblasting the surface of a steel sheet, comprising: a main body, with a protective cover at the front of the protective cover; a negative pressure clamp, disposed on the top of the main body, with the negative pressure clamp forming an angle of 20°-60° with the vertical plane of the main body; a sandblasting assembly, disposed above the main body and capable of moving up and down and forward and backward to sandblast the surface of the steel sheet; a longitudinal moving mechanism, capable of driving the sandblasting assembly to move up and down, and a transverse moving mechanism, capable of driving the sandblasting assembly to move forward and backward, is also disposed on the top of the main body; the sandblasting assembly includes a housing and a sandblasting unit disposed inside the housing, the sandblasting unit including a sandblasting belt capable of circulating within the housing; and the sandblasting assembly forming an angle of 20°-60° with the vertical plane of the main body.

[0007] Preferably, the negative pressure clamp is at an angle of 45° to the vertical plane of the main body.

[0008] Preferably, the sand-opening component is at a 45° angle to the vertical plane of the main body.

[0009] Preferably, the sand-opening unit includes a drive wheel rotatably disposed inside the housing near the top position, and the sand-opening unit also includes a bracket installed at the bottom of the housing, and a driven wheel that can be detached is disposed on the bracket. A tensioning wheel that can change position is also disposed inside the housing near the drive wheel, and a sand-opening belt that can circulate is sleeved between the drive wheel, the driven wheel and the tensioning wheel.

[0010] Preferably, the sand-opening unit further includes a tensioning assembly fixed inside the housing. The tensioning assembly includes a second telescopic drive component fixed inside the housing, and the output end of the second telescopic drive component is connected to a tensioning frame, with a tensioning wheel rotatably mounted on the tensioning frame.

[0011] Preferably, a motor is also fixed to the back of the housing, and the output end of the motor passes through the housing and is connected to the drive wheel.

[0012] Preferably, a movable plate is hinged to the back of the housing, and a first telescopic drive member capable of driving the housing to swing is also provided on the movable plate. The output end of the first telescopic drive member is hinged to the housing, and one end of the first telescopic drive member is hinged to the movable plate. The movable plate is connected to the longitudinal movement mechanism for transmission.

[0013] Preferably, the exterior of the housing is also hinged with a protective cover, and the protective cover is fixed to the housing by a buckle.

[0014] Preferably, the bottom of the negative pressure clamp is also provided with a control valve, and the negative pressure clamp is also provided with a through hole.

[0015] The advantages of this utility model compared to the prior art are: This application assembles a negative pressure fixture on the top of the main body, maintaining a 45° angle between the fixture and the vertical plane of the main body. Correspondingly, the housing rotates synchronously by 45°, causing the sand-opening unit inside the housing to rotate synchronously by 45° as the housing rotates. Based on this structural design, when the sand-opening band in the sand-opening unit contacts the steel sheet body, the contact angle between the sand-opening band and the steel sheet body remains at 45°. This angle setting directly changes the surface machining trajectory of the steel sheet body. After sand-opening, a fan-shaped pattern forms on the surface of the steel sheet body. This pattern extends outward from the center, with a uniform distribution and short extension path, enabling the construction of an efficient exhaust channel on the steel sheet surface. In contrast, in traditional processes, because the contact angle between the sand-opening device and the steel sheet body is not optimized, the machining marks formed on the surface of the steel sheet body appear as small-pitch lines. These linear marks extend outward from the center, with dense patterns and long extension paths. In subsequent forging processes, gas retention is easily caused due to obstructed exhaust channels, thus affecting forging accuracy and product quality. This application fundamentally solves the problem of forging venting caused by unreasonable surface texture in traditional processes by optimizing the contact angle, and significantly improves the process stability and product qualification rate of steel sheet processing. Attached Figure Description

[0016] Figure 1 This is a first three-dimensional structural schematic diagram of a multi-layered steel sheet sand-opening device according to this utility model.

[0017] Figure 2 This is a second three-dimensional structural schematic diagram of a multi-layered steel sheet sand-opening device according to this utility model.

[0018] Figure 3 This is a schematic diagram of the third three-dimensional structure of a multi-layered steel sheet sand-opening device according to this utility model.

[0019] Figure 4 This utility model relates to a sand-opening device for composite bottom steel sheets. Figure 3 Enlarged structural diagram at point A in the middle.

[0020] Figure 5 This utility model relates to a sand-opening device for composite bottom steel sheets. Figure 3 Enlarged structural diagram at point B.

[0021] Figure 6 This is a schematic diagram of the steel sheet body structure in the original processing plan.

[0022] Figure 7 This is a schematic diagram of the steel sheet body structure processed by the optimized scheme.

[0023] The following components are labeled in the diagram: 1. Main body; 11. Protective cover; 2. Negative pressure clamp; 21. Control valve; 3. Longitudinal movement mechanism; 4. Sand-opening assembly; 41. Housing; 411. Protective cover; 412. Moving plate; 413. First telescopic drive component; 42. Sand-opening unit; 421. Drive wheel; 422. Driven wheel; 423. Bracket; 424. Tensioning wheel; 425. Sand-opening belt; 426. Tensioning assembly; 4261. Second telescopic drive component; 4262. Tensioning frame; 5. Lateral movement mechanism; 100. Steel sheet body. Detailed Implementation

[0024] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0025] Reference Figures 1-7As shown, this utility model provides a sandblasting device for a steel sheet body 100, used for sandblasting the surface of the steel sheet body 100. It includes: a main body 1, with a protective cover 11 at the front; the protective cover 11 mainly serves a safety protection function, blocking the splashing of debris generated during the sandblasting process, and preventing external debris from entering the device and interfering with processing, ensuring operator safety and normal equipment operation. A negative pressure clamp 2 is located on top of the main body 1, with the angle between the negative pressure clamp 2 and the vertical plane of the main body 1 being 20°-60°; the angle between the negative pressure clamp 2 and the vertical plane of the main body 1 is 45°. The negative pressure clamp 2, with an angle of 20°-60° (preferably 45°) with the vertical plane of the main body 1, fixes the steel sheet body 100 through the principle of negative pressure adsorption; a control valve 21 at the bottom is used to adjust the negative pressure, achieving precise control of the clamping force; the through hole on it is a negative pressure transmission channel, ensuring that the negative pressure can effectively act on the surface of the steel sheet body 100, guaranteeing the stability of the clamping. The bottom of the negative pressure clamp 2 is also equipped with a control valve 21, and a through hole is also provided on the negative pressure clamp 2. The sand-cutting assembly 4 is set above the main body 1 and can move up and down and back and forth to sand the surface of the steel sheet body 100. The back of the sand-cutting assembly 4 is also equipped with a longitudinal moving mechanism 3 that can drive the sand-cutting assembly 4 to move up and down. The longitudinal moving mechanism 3 is the core driving component for adjusting the vertical displacement of the sand-cutting assembly 4, and is usually composed of linear guide rails, drive motors (such as servo motors), ball screws, etc. The bottom of the longitudinal moving mechanism 3 is equipped with a transverse moving mechanism 5 that can drive the sand-cutting assembly 4 to move back and forth. The transverse moving mechanism 5 is usually composed of linear guide rails, drive motors (such as servo motors), ball screws, etc. The transverse moving mechanism 5 is set at the top of the main body 1. The sand-cutting assembly 4 includes a housing 41 and a sand-cutting unit 42 set inside the housing 41. The sand-cutting unit 42 includes a sand-cutting belt 425 that can circulate in the housing 41. The angle between the sand-cutting assembly 4 and the vertical plane of the main body 1 is 20°-60°. The sand-cutting component 4 is at a 45° angle to the vertical plane of the main body 1.

[0026] First, the steel sheet body 100 is placed on the negative pressure clamp 2. The negative pressure is activated by the control valve 21, and the negative pressure suction transmitted through the through-hole firmly clamps the steel sheet body 100. Then, the lateral movement mechanism 5 and the longitudinal movement mechanism 3 work together to drive the sand-opening assembly 4 to adjust its position in the front-to-back and up-to-down directions, ensuring that the sand-opening belt 425 (at a 45° angle to the vertical plane of the main body 1) precisely contacts the surface of the steel sheet body 100 to be processed. After the sand-opening unit 42 is activated, the sand-opening belt 425 circulates within the housing 41, achieving sand-opening processing through friction with the surface of the steel sheet body 100. Because the sand-opening belt 425 maintains a 45° contact angle with the steel sheet body 100, a fan-shaped pattern rapidly extending outward from the center is formed on the steel sheet surface. During processing, the protective cover 11 prevents debris from splashing. After processing, the control valve 21 closes the negative pressure, releasing the steel sheet body 100, completing one sand-opening operation. Through angle optimization and multi-mechanism collaboration, this device can efficiently complete the sandblasting of steel sheet surfaces, solving the problem of subsequent forging and venting caused by unreasonable texture morphology in traditional processes.

[0027] The sand-opening unit 42 includes a drive wheel 421 rotatably disposed inside the housing 41 near the top. The sand-opening unit 42 also includes a bracket 423 mounted on the bottom of the housing 41, with a detachable driven wheel 422 mounted on the bracket 423. A tension wheel 424, capable of changing position, is also disposed inside the housing 41 near the drive wheel 421. A sand-opening belt 425, capable of circulating rotation, is fitted between the drive wheel 421, the driven wheel 422, and the tension wheel 424. A motor is also fixed to the back of the housing 41, with the motor's output end passing through the housing 41 and connected to the drive wheel 421.

[0028] After the motor starts, its output drives the drive wheel 421 to rotate. Under the action of friction, the drive wheel 421 drives the sanding belt 425 mounted on it to rotate in a circular motion. The driven wheel 422 rotates passively with the movement of the sanding belt 425, together guiding the sanding belt 425 to maintain a stable transmission trajectory. The tension wheel 424, through preset tension adjustment, ensures that the sanding belt 425 is in close contact with each wheel body to avoid slippage. When the sanding assembly 4 is adjusted to contact the steel sheet body 100 by the longitudinal moving mechanism 3 and the transverse moving mechanism 5, the sanding belt 425, which is in a state of circular motion (at a 45° angle with the steel sheet), generates friction with the surface of the steel sheet body 100 through the surface abrasive, realizing sanding processing. Driven by the transverse moving mechanism 5, the sanding assembly 4 moves along a preset path, so that the sanding belt 425 forms a fan-shaped pattern on the surface of the steel sheet that extends rapidly from the center outward, meeting the venting requirements of the subsequent forging process.

[0029] The sand-opening unit 42 also includes a tensioning assembly 426 fixed inside the housing 41. The tensioning assembly 426 includes a second telescopic drive member 4261 fixed inside the housing 41, and the output end of the second telescopic drive member 4261 is connected to a tensioning frame 4262. The tensioning wheel 424 is rotatably mounted on the tensioning frame 4262. The second telescopic drive member 4261 serves as the power source for tension adjustment and is typically a device that provides linear telescopic power, such as a cylinder, hydraulic cylinder, or electric push rod. Its core function is to convert energy into linear driving force, and through the telescopic movement of the output end, drive the tensioning frame 4262 and the tensioning wheel 424 to move, thereby changing the tension of the sand-opening belt 425.

[0030] Before the sandblasting operation begins, the second telescopic drive component 4261 drives the tensioning wheel 424 to move to a preset position, adjusting the sandblasting belt 425 to the required tension, ensuring that the power of the drive wheel 421 can be effectively transmitted to the sandblasting belt 425 and avoiding idle rotation. During the operation, if the sandblasting belt 425 becomes loose due to frictional heat or wear, the tensioning component 426 can respond to the tension change in real time, maintaining stable tension through the slight extension and retraction of the second telescopic drive component 4261, ensuring uniform contact pressure between the sandblasting belt 425 and the steel sheet body 100, thereby ensuring the consistency of the surface texture. When the sandblasting belt 425 needs to be replaced, the second telescopic drive component 4261 retracts to reset the tensioning wheel 424, reducing the tension of the sandblasting belt 425, making it easier for operators to quickly disassemble the old belt and install the new belt, improving maintenance efficiency.

[0031] A movable plate 412 is hinged to the back of the housing 41, and a first telescopic drive member 413 capable of driving the housing 41 to swing is also provided on the movable plate 412. The output end of the first telescopic drive member 413 is hinged to the housing 41, and one end of the first telescopic drive member 413 is hinged to the movable plate 412. The movable plate 412 is connected to the longitudinal moving mechanism 3. The first telescopic drive member 413 is the power source for driving the housing 41 to swing, and usually adopts a linear drive device such as a cylinder, hydraulic cylinder or electric push rod.

[0032] When it is necessary to adjust the contact angle between the sanding belt 425 and the steel sheet body 100, the first telescopic drive component 413 is activated, and its output end extends or retracts, pushing the housing 41 to swing around the hinge point with the moving plate 412 as the axis. The angle of the sanding component 4 can be precisely controlled within the range of 20°-60° (preferably 45°) to meet the requirements of different processes for the sanding texture.

[0033] A protective cover 411 is hinged to the exterior of the housing 41 and secured to the housing 41 with a latch. The other side of the protective cover 411 is also secured to the housing 41 with a latch. The latch, as a quick-locking mechanism, ensures a tight connection between the protective cover 411 and the housing 41 when closed, preventing accidental opening of the protective cover 411 due to vibration or external force during sand-opening operations, thus ensuring the reliability of the protective function. One side of the protective cover 411 is connected to the housing 41 via a hinge, forming a flip-up movable structure. The hinge allows the protective cover 411 to rotate flexibly around the hinge axis, enabling "open-close" switching, facilitating the operator's inspection, maintenance, or replacement of the sand-opening unit 42 (such as the sand-opening belt 425, drive wheel 421, etc.) inside the housing 41.

[0034] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A sandblasting device for a composite-bottomed steel sheet, used for sandblasting the surface of a steel sheet body (100), characterized in that, include: The main body (1) has a protective cover (11) at the front. The negative pressure clamp (2) is set on the top of the main body (1), and the angle between the negative pressure clamp (2) and the vertical plane of the main body (1) is 20°-60°. The sand-cutting component (4) is located above the main body (1) and can move up and down and back and forth to sand the surface of the steel sheet body (100); The back of the sand-opening component (4) is also provided with a longitudinal moving mechanism (3) that can drive the sand-opening component (4) to move up and down. The bottom of the longitudinal moving mechanism (3) is provided with a transverse moving mechanism (5) that can drive the sand-opening component (4) to move back and forth. The transverse moving mechanism (5) is provided on the top of the main body (1). The sand-opening component (4) includes a housing (41) and a sand-opening unit (42) provided inside the housing (41). The sand-opening unit (42) includes a sand-opening belt (425) that can rotate cyclically in the housing (41). The angle between the sand-opening component (4) and the vertical plane of the main body (1) is 20°-60°.

2. The sand-opening device for composite-bottomed steel sheets according to claim 1, characterized in that: The negative pressure clamp (2) is at a 45° angle to the vertical plane of the main body (1).

3. The sand-opening device for composite-bottomed steel sheets according to claim 1, characterized in that: The sand-opening component (4) is at a 45° angle to the vertical plane of the main body (1).

4. The sand-opening device for composite-bottomed steel sheets according to claim 1, characterized in that: The sand-opening unit (42) includes a drive wheel (421) rotatably disposed inside the housing (41) near the top position. The sand-opening unit (42) also includes a bracket (423) installed at the bottom of the housing (41), and a driven wheel (422) that can be detachably disposed on the bracket (423). A tensioning wheel (424) that can change position is also disposed inside the housing (41) near the drive wheel (421). A sand-opening belt (425) that can circulate is sleeved between the drive wheel (421), the driven wheel (422) and the tensioning wheel (424).

5. The sand-opening device for composite-bottomed steel sheets according to claim 4, characterized in that: The sand-opening unit (42) also includes a tensioning assembly (426) fixed inside the housing (41). The tensioning assembly (426) includes a second telescopic drive (4261) fixed inside the housing (41), and the output end of the second telescopic drive (4261) is connected to a tensioning frame (4262). The tensioning wheel (424) is rotatably mounted on the tensioning frame (4262).

6. The sand-opening device for composite-bottomed steel sheets according to claim 4, characterized in that: A motor is also fixed to the back of the housing (41), and the output end of the motor passes through the housing (41) and is connected to the drive wheel (421).

7. The sand-opening device for composite-bottomed steel sheets according to claim 1, characterized in that: The back of the housing (41) is hinged with a movable plate (412), and the movable plate (412) is also provided with a first telescopic drive member (413) that can drive the housing (41) to swing. The output end of the first telescopic drive member (413) is hinged to the protective cover (411), and one end of the first telescopic drive member (413) is hinged to the movable plate (412). The movable plate (412) is connected to the longitudinal moving mechanism (3) in a transmission connection.

8. The sand-opening device for composite-bottomed steel sheets according to claim 7, characterized in that: The exterior of the housing (41) is also hinged to the housing (41), and the protective cover (411) is fixed to the housing (41) by a buckle.

9. The sand-opening device for composite-bottomed steel sheets according to claim 1, characterized in that: The bottom of the negative pressure clamp (2) is also provided with a control valve (21) and a through hole is also provided on the negative pressure clamp (2).

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