Automatic tensioning dry grinding and polishing machine

Abstract

The utility model belongs to the sanding machine technical field especially relates to a kind of dry grinding sanding machine, including dry grinding sanding machine body, conveying device is arranged in the middle part of dry grinding sanding machine body, conveying belt is installed in the conveying device, two groups of support seat are installed in dry grinding sanding machine body, two groups of crosspieces are installed on two groups of support seat, and upper frame is installed in the lateral end of crosspiece. By being installed with two groups of abrasive belt in dry grinding sanding machine body, let abrasive belt be sleeved on driving roller and tensioning roller, let tensioning roller drive rotation, and tensioning regulator can automatically adjust the height of upper frame, to change the position of tensioning roller, realize the automatic regulation of abrasive belt tension, avoid the problem such as skidding, uneven grinding caused by abrasive belt relaxation, improve grinding quality and abrasive belt life, again by the workpiece guide plate of conveying device both sides, let two groups of workpiece guide plate can guide workpiece smoothly into dry grinding sanding machine body, let two groups of abrasive belt polish workpiece.

Description

Technical Field

[0001] This utility model relates to the field of sanding machine technology, and in particular to an automatic belt tensioning dry sanding machine. Background Technology

[0002] Sanding machines are widely used in industries such as wood processing, furniture manufacturing, and metal surface treatment. They are used to grind and polish the surface of workpieces to achieve a smooth and even finish. Among them, belt sanders are favored for their high efficiency and wide applicability. As the core grinding component, the stability of the belt tension directly affects the quality of the grinding effect, the service life of the belt, and the safety of equipment operation.

[0003] Traditional dry sanding machines on the market have slow tensioning mechanisms. When the tension of the sanding belt decreases due to wear or thermal expansion, they cannot achieve fast and accurate automatic compensation, which can easily cause problems such as belt slippage and uneven grinding force. Furthermore, for workpieces of different widths, the guide mechanism needs to be manually adjusted, which is cumbersome, inefficient, and makes it difficult to ensure symmetry on both sides, affecting the smoothness of feeding and processing quality. To address these issues, we propose an automatic belt tensioning dry sanding machine. Utility Model Content

[0004] The purpose of this invention is to provide an automatic belt tensioning dry sanding machine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic belt tensioning dry sanding machine, comprising a dry sanding machine body, a conveying device arranged in the middle of the dry sanding machine body, a conveyor belt installed inside the conveying device, two sets of support seats installed inside the dry sanding machine body, two sets of cross frames installed on each of the two sets of support seats, an upper frame installed on the side end of the cross frame, a drive roller installed on the lower end of the cross frame, a tension roller installed on the upper frame, a tension adjuster installed at the middle of the top of the cross frame, the output end of the tension adjuster connected to the bottom end of the upper frame, sanding belts installed on the outside of the drive roller and the tension roller, and two sets of workpiece guide plates installed on the conveying device through an adjustment component.

[0006] As an improved technical solution, the adjustment component includes a sleeve fixed to the lower end of the conveying device. A servo motor is installed on the side of the sleeve. A bidirectional lead screw is rotatably connected inside the sleeve. The output end of the servo motor is connected to the end of the bidirectional lead screw. Threaded sleeves are threadedly connected to both sides of the servo motor. Guide seats are installed on both sides above the conveying device. Two sets of guide rods are slidably connected inside each of the two sets of guide seats. Workpiece guide plates are installed at opposite ends of each set of guide rods. The top ends of the two sets of threaded sleeves are connected to the ends of the guide rods through connecting brackets.

[0007] As an improved technical solution, an operation control panel is installed on the upper front part of the dry sanding machine body, and the operation control panel is equipped with control buttons and a control screen.

[0008] As an improved technical solution, a pressure sensor is installed on the surface of the tensioning roller, and the pressure sensor is linked with the tension adjuster.

[0009] As an improved technical solution, the outer walls of both sets of workpiece guide plates are polished.

[0010] As an improved technical solution, the front ends of the two sets of workpiece guide plates are designed to be inclined.

[0011] As an improved technical solution, the threads on both sides of the bidirectional lead screw are designed in opposite directions.

[0012] After adopting the above technical solution, the beneficial effects of this utility model are: I. This utility model features two sets of sanding belts installed inside the dry sanding machine body. The sanding belts are fitted onto the drive roller and tension roller, which are driven to rotate. The tension adjuster can automatically adjust the height of the upper frame, thereby changing the position of the tension roller and achieving automatic adjustment of the sanding belt tension. This avoids problems such as slippage and uneven grinding caused by sanding belt slack, improving grinding quality and sanding belt life. Furthermore, workpiece guide plates on both sides of the conveying device guide the workpieces smoothly into the dry sanding machine body, allowing the two sets of sanding belts to grind the workpieces.

[0013] II. This utility model has a sleeve installed at the bottom of the conveying device. When it is necessary to adjust the distance between the two sets of workpiece guide plates, the servo motor can drive the bidirectional screw inside the sleeve to rotate, so that the two sets of threaded sleeves outside the bidirectional screw can move synchronously in opposite directions or in opposite directions. This allows the two sets of workpiece guide plates to move synchronously in opposite directions or in opposite directions under the drive of the two sets of connecting brackets, thereby quickly adjusting the distance between the two sets of workpiece guide plates and realizing the electric adjustment of the width of the two sets of workpiece guide plates. This effectively adapts to workpieces of different widths and ensures feeding symmetry and processing quality. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 This is a partial cross-sectional structural diagram of the present invention; Figure 4 For the present utility model Figure 2 A magnified structural diagram at point A; Figure 5 For the present utility model Figure 3A magnified structural diagram at point B.

[0015] In the diagram: 1. Dry sanding machine body; 2. Conveying device; 3. Conveyor belt; 4. Operation control panel; 5. Support base; 6. Cross frame; 7. Drive roller; 8. Tension roller; 9. Sanding belt; 10. Upper frame; 11. Tension adjuster; 12. Sleeve; 13. Servo motor; 14. Two-way lead screw; 15. Threaded sleeve; 16. Guide seat; 17. Guide rod; 18. Workpiece guide plate; 19. Connecting bracket. Detailed Implementation

[0016] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0017] This utility model provides a technical solution: such as Figures 1 to 5 As shown in this embodiment, an automatic belt tensioning dry sanding machine includes a dry sanding machine body 1, a conveying device 2 is provided in the middle of the dry sanding machine body 1, a conveyor belt 3 is installed inside the conveying device 2, two sets of support seats 5 are installed inside the dry sanding machine body 1, two sets of cross frames 6 are installed on each of the two sets of support seats 5, an upper frame 10 is installed on the side of the cross frame 6, a drive roller 7 is installed at the lower end of the cross frame 6, a tension roller 8 is installed on the upper frame 10, a tension adjuster 11 is installed at the middle of the top of the cross frame 6, the output end of the tension adjuster 11 is connected to the bottom end of the upper frame 10, a sanding belt 9 is installed on the outside of both the drive roller 7 and the tension roller 8, and two sets of workpiece guide plates 18 are installed on the conveying device 2 through an adjustment component.

[0018] Two sets of sanding belts 9 are installed inside the dry sanding machine body 1. The sanding belts 9 are fitted onto the drive roller 7 and the tension roller 8, which drives the tension roller 8 to rotate. The tension adjuster 11 can automatically adjust the height of the upper frame 10, thereby changing the position of the tension roller 8 and realizing automatic adjustment of the tension of the sanding belts 9. This avoids problems such as slippage and uneven grinding caused by the looseness of the sanding belts 9, improves the grinding quality and the life of the sanding belts 9. Furthermore, the workpiece guide plates 18 on both sides of the conveying device 2 allow the two sets of workpiece guide plates 18 to guide the workpieces smoothly into the dry sanding machine body 1, so that the two sets of sanding belts 9 can grind the workpieces.

[0019] In other embodiments, the adjustment assembly includes a sleeve 12 fixed to the lower end of the conveying device 2. A servo motor 13 is installed on the side of the sleeve 12. A bidirectional lead screw 14 is rotatably connected inside the sleeve 12. The output end of the servo motor 13 is connected to the end of the bidirectional lead screw 14. Threaded sleeves 15 are threadedly connected to both sides of the servo motor 13. Guide seats 16 are installed on both sides above the conveying device 2. Two sets of guide rods 17 are slidably connected inside the two sets of guide seats 16. Workpiece guide plates 18 are installed at opposite ends of the two sets of guide rods 17. The top ends of the two sets of threaded sleeves 15 are connected to the ends of the guide rods 17 through connecting brackets 19. By installing a sleeve 12 at the bottom of the conveying device 2, when it is necessary to adjust the distance between the two sets of workpiece guide plates 18, the servo motor 13 can drive the bidirectional lead screw 14 inside the sleeve 12 to rotate, so that the two sets of threaded sleeves 15 outside the bidirectional lead screw 14 can move synchronously in opposite directions or in opposite directions, and the two sets of workpiece guide plates 18 can move synchronously in opposite directions or in opposite directions under the drive of the two sets of connecting brackets 19, thereby quickly adjusting the distance between the two sets of workpiece guide plates 18, realizing the electric adjustment of the width of the two sets of workpiece guide plates 18, effectively adapting to workpieces of different widths, and ensuring feeding symmetry and processing quality.

[0020] In other embodiments, an operation control panel 4 is installed on the front of the upper end of the dry sanding machine body 1, and the operation control panel 4 is equipped with control buttons and a control screen. This design allows users to set tension parameters, guide width, etc. on the control panel 4, enabling human-machine interaction control and facilitating parameter setting and status monitoring.

[0021] In other embodiments, a pressure sensor is mounted on the surface of the tension roller 8, and the pressure sensor is linked to the tension adjuster 11; This design allows the pressure sensor on the surface of the tension roller 8 to detect the pressure of the sanding belt 9 on the tension roller 8 in real time, and feeds the feedback to the control system to control the tension regulator 11 to achieve closed-loop tension control, realize precise and automatic tension adjustment, fast response speed, and effectively adapt to the wear or thermal expansion of the sanding belt 9.

[0022] In other embodiments, the outer walls of both sets of workpiece guide plates 18 are polished. This design allows the polished surface of the workpiece guide plate 18 to reduce frictional resistance with the workpiece, facilitating smooth passage of the workpiece, reducing scratches on the workpiece surface, and improving feeding smoothness and processing quality.

[0023] In other embodiments, the front ends of the two sets of workpiece guide plates 18 are designed to be inclined; This design allows the two sets of workpiece guide plates 18 to be tilted at the front end to guide the workpiece into the processing area naturally, avoiding jamming or deviation, improving feeding smoothness and processing stability, and is especially suitable for irregular workpieces.

[0024] In other embodiments, the threads on both sides of the bidirectional lead screw 14 are designed in opposite directions; With this design, when the servo motor 13 drives the bidirectional lead screw 14 to rotate, the two sets of threaded sleeves 15 outside the bidirectional lead screw 14 can move synchronously in opposite directions or in opposite directions, ensuring that the guide plates 18 of the two workpieces move synchronously and symmetrically, maintaining the symmetry of the machining center and improving machining accuracy.

[0025] This utility model provides an automatic belt tensioning dry sanding machine, the specific working principle of which is as follows: Drive roller 7 drives sanding belt 9 to rotate. Tension roller 8 moves up and down through tension adjuster 11 to adjust the tension of sanding belt 9. Pressure sensor monitors tension changes in real time and feeds back to control system to achieve automatic tensioning. Conveyor belt 3 sends workpiece into grinding area. Workpiece guide plate 18 adjusts width through servo motor 13 and bidirectional lead screw 14 to adapt to different workpiece sizes and facilitate smooth entry of workpiece. Two sets of sanding belts 9 grind the workpiece entering dry sanding machine body 1.

[0026] The electrical components mentioned in this article are all electrically connected to an external main controller and industrial power supply, and the main controller can be a conventional known device such as a computer that provides control.

[0027] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An automatic belt tensioning dry sanding machine, comprising a dry sanding machine body (1), characterized in that: The dry sanding machine body (1) is provided with a conveying device (2) in the middle. The conveying device (2) is equipped with a conveyor belt (3). The dry sanding machine body (1) is equipped with two sets of support seats (5). Two sets of cross frames (6) are installed on each of the two sets of support seats (5). An upper frame (10) is installed on the side of the cross frame (6). A drive roller (7) is installed on the lower end of the cross frame (6). A tension roller (8) is installed on the upper frame (10). A tension adjuster (11) is installed in the middle of the top of the cross frame (6). The output end of the tension adjuster (11) is connected to the bottom end of the upper frame (10). Sanding belts (9) are installed on the outside of the drive roller (7) and the tension roller (8). The conveying device (2) is equipped with two sets of workpiece guide plates (18) through the adjustment component.

2. The automatic belt tensioning dry sanding machine according to claim 1, characterized in that: The adjustment assembly includes a sleeve (12) fixed at the lower end of the conveying device (2). A servo motor (13) is installed on the side of the sleeve (12). A bidirectional lead screw (14) is rotatably connected inside the sleeve (12). The output end of the servo motor (13) is connected to the end of the bidirectional lead screw (14). Threaded sleeves (15) are threadedly connected to both sides of the servo motor (13). Guide seats (16) are installed on both sides above the conveying device (2). Two sets of guide rods (17) are slidably connected inside the two sets of guide seats (16). Workpiece guide plates (18) are installed at opposite ends of the two sets of guide rods (17). The top ends of the two sets of threaded sleeves (15) are connected to the ends of the guide rods (17) through connecting brackets (19).

3. The automatic belt tensioning dry sanding machine according to claim 1, characterized in that: The upper front part of the dry sanding machine body (1) is equipped with an operation control panel (4), and the operation control panel (4) is equipped with control buttons and a control screen.

4. The automatic belt tensioning dry sanding machine according to claim 1, characterized in that: A pressure sensor is installed on the surface of the tension roller (8), and the pressure sensor is linked to the tension adjuster (11).

5. The automatic belt tensioning dry sanding machine according to claim 1, characterized in that: The outer walls of both sets of workpiece guide plates (18) are polished.

6. The automatic belt tensioning dry sanding machine according to claim 1, characterized in that: The front ends of the two sets of workpiece guide plates (18) are designed to be inclined.

7. The automatic belt tensioning dry sanding machine according to claim 2, characterized in that: The threads on both sides of the bidirectional lead screw (14) are designed in opposite directions.

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