A pressing device for an easily adjustable sander

Abstract

This utility model discloses an easily adjustable pressing device for a sander, relating to the field of sander technology. The easily adjustable pressing device for a sander includes a base plate, with a conveying mechanism and a pressing mechanism disposed above the base plate. The conveying mechanism includes a conveying section and a limiting section. The conveying section includes two conveying rollers and a conical block, and the limiting section includes two sets of limiting frames and two sets of limiting rollers. The technical advantage is that the conveying mechanism provides stable sliding guidance for the limiting frames through the cooperation of the conical block, wedge groove, and wedge block. Combined with the elastic force of the compression spring and damper, the limiting rollers can automatically adjust their spacing according to changes in workpiece width and always closely fit the side of the workpiece, achieving adaptive adjustment without manual operation. This significantly improves adaptability to workpieces of different widths and reduces changeover adjustment time. Simultaneously, the heating plate inside the conical block can complete preheating treatment during workpiece conveying.

Description

Technical Field

[0001] This utility model relates to the field of sanding machine technology, specifically to a pressing device for a sanding machine that is easy to adjust. Background Technology

[0002] Grinding machines are commonly used to sharpen various knives and tools. They are also used for grinding, deburring, and cleaning ordinary small parts. Existing sanding machines require pressing two materials together during production to improve the strength of the sanded sheet. The existing sanding machine pressing device's conveying mechanism generally suffers from poor lateral limiting effect when conveying workpieces: for workpieces of different widths, the limiting mechanism mostly requires manual adjustment of the spacing, which is cumbersome and time-consuming, making it difficult to quickly adapt to diverse workpiece sizes and affecting production efficiency. Therefore, a pressing device for sanding machines that is easy to adjust is proposed. Utility Model Content

[0003] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides an easily adjustable pressing device for sanders, which solves the problem of poor lateral limiting effect when conveying workpieces: for workpieces of different widths, the limiting mechanism mostly requires manual adjustment of the spacing, which is cumbersome and time-consuming, making it difficult to quickly adapt to diverse workpiece sizes and affecting production efficiency.

[0004] (II) Technical Solution To achieve the above objectives, this utility model is implemented through the following technical solution: it includes a base plate, and a conveying mechanism and a pressing mechanism are arranged above the base plate; The conveying mechanism includes a conveying section and a limiting section; The conveying section includes two conveying rollers and a conical block, and the limiting section includes two sets of limiting frames and two sets of limiting rollers; A fixed frame is fixedly installed on the top surface of the base plate. The inner side of the fixed frame is rotatably connected to the outer wall of the two conveying rollers through two sets of bearing seats. The conical block is located inside the fixed frame. Two connecting frames are fixedly installed on the outer wall of the fixed frame. The outer walls of the two connecting frames are fixedly connected to the outer wall of the conical block. The outer wall of the conical block is slidably connected to the outer walls of the two sets of limiting frames. The inner sides of the two sets of limiting frames are rotatably connected to the outer walls of the two sets of limiting rollers through two sets of bearing seats.

[0005] Preferably, the pressing mechanism includes a rotating roller, a pressing frame is fixedly mounted on the top surface of the base plate, the inner side of the pressing frame is rotatably connected to the outer wall of the rotating roller through a bearing seat three, a lifting frame is slidably mounted on the inner side of the pressing frame, an adjusting roller is rotatably mounted on the inner side of the lifting frame through two bearing seats four, a servo motor is fixedly mounted on the outer wall of the pressing frame, and the output end of the servo motor passes through the outer wall of the pressing frame and is fixedly connected to the outer wall of the rotating roller. The servo motor drives the rotating roller to rotate, forming a stable pressing channel in conjunction with the conveying mechanism, ensuring that the workpiece is subjected to uniform force and conveyed smoothly during the pressing process.

[0006] Preferably, two heating plates are fixedly installed on the inner side of the conical block, and two through slots are opened on the outer wall of the conical block. Two sets of control blocks are slidably installed on the inner wall of the two through slots respectively. The side of the two sets of control blocks near the two sets of limit frames is fixedly connected to the outer wall of the two sets of limit frames respectively. The heating plates can complete the preheating treatment simultaneously during the workpiece conveying process.

[0007] Preferably, a movable frame is slidably arranged on the inner side of the conical block, and two sets of connecting rods are hinged to the outer wall of the movable frame. The two sets of connecting rods are respectively hinged to the outer wall of the two sets of control blocks on the side near the two sets of control blocks. A compression spring and a damper are fixedly arranged on the inner side of the conical block. The sides of the compression spring and the damper near the movable frame are both fixedly connected to the outer wall of the movable frame. The elastic force of the compression spring reacts to the movable frame, so that the limiting frame drives the limiting roller to always fit against the side of the workpiece, realizing adaptive adjustment.

[0008] Preferably, the outer wall of the conical block has two wedge grooves, and two sets of wedge blocks are slidably arranged on the inner wall of the two wedge grooves respectively. The outer walls of the two sets of wedge blocks are fixedly connected to the outer walls of the two sets of limiting frames respectively. The wedge grooves and wedge blocks cooperate to make the movement of the limiting frames more stable.

[0009] Preferably, a threaded rod is provided through the top surface of the pressing frame and fixedly connected to the top surface of the lifting frame. A nut is rotatably provided on the top surface of the pressing frame through a bearing seat. The inner side of the nut is threadedly connected to the outer wall of the threaded rod. Two limiting plates are slidably provided through the top surface of the pressing frame and fixedly connected to the top surface of the lifting frame. When the nut is rotated, its threaded connection with the threaded rod drives the threaded rod to rise and fall along the pressing frame, thereby allowing the lifting frame to move smoothly under the guidance of the limiting plates.

[0010] (III) Beneficial Effects This invention provides a pressing device for a sander that is easy to adjust. It has the following advantages: (i) This adjustable pressing device for a sander has a conveying mechanism that provides stable sliding guidance for the limiting frame through the cooperation of a conical block, a wedge groove, and a wedge block. Combined with the elastic force of a compression spring and a damper, the limiting roller can automatically adjust the spacing according to the change of workpiece width and always closely fit the side of the workpiece, achieving adaptive adjustment without manual operation. This greatly improves the adaptability to workpieces of different widths and reduces changeover adjustment time. At the same time, the heating plate inside the conical block can complete the preheating treatment simultaneously during the workpiece conveying process, meeting the needs of workpieces that require preheating assistance for pressing without additional equipment, simplifying the processing flow and reducing costs. Furthermore, the stable conveying of the conveying roller and the lateral limiting of the limiting roller effectively prevent workpiece conveying deviation.

[0011] (ii) The pressing device for a sander that is easy to adjust adopts a threaded transmission structure of threaded rod and nut, and is guided by a limiting plate. The lifting frame can be driven to rise and fall smoothly by simply rotating the nut, so as to achieve precise control of the distance between the adjusting roller and the rotating roller. The adjustment accuracy is high and the operation is convenient. It can effectively avoid the jamming and shaking problems in traditional adjustment methods, and ensure that the pressing force on workpieces of different thicknesses is uniform and stable, thus improving the pressing quality. At the same time, the servo motor drives the rotating roller to rotate, and works with the conveying mechanism to form a stable pressing channel, ensuring that the workpiece is subjected to uniform force and conveyed smoothly during the pressing process. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the conveying mechanism of this utility model; Figure 3 This is a schematic diagram of the internal structure of the conical block of the conveying mechanism of this utility model; Figure 4 This is a schematic diagram of the pressing mechanism of this utility model; Figure 5 This utility model Figure 3 A magnified structural diagram of region A in the middle.

[0013] In the diagram: 1. Base plate; 2. Conveying mechanism; 21. Fixed frame; 22. Conveying roller; 23. Wedge block; 24. Limiting frame; 25. Limiting roller; 26. Heating plate; 27. Conical block; 28. Connecting frame; 29. ​​Control block; 210. Connecting rod; 211. Compression spring; 212. Damper; 213. Moving frame; 3. Pressing mechanism; 31. Pressing frame; 32. Limiting plate; 33. Nut; 34. Threaded rod; 35. Adjusting roller; 36. Lifting frame; 37. Rotating roller; 38. Servo motor. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-5 The present invention provides a technical solution: including a base plate 1, and a conveying mechanism 2 and a pressing mechanism 3 are arranged above the base plate 1; Conveying mechanism 2 includes a conveying section and a limiting section; The conveying section includes two conveying rollers 22 and a conical block 27, and the limiting section includes two sets of limiting frames 24 and two sets of limiting rollers 25; A fixed frame 21 is fixedly installed on the top surface of the base plate 1. The inner side of the fixed frame 21 is rotatably connected to the outer wall of two conveying rollers 22 through two sets of bearing seats. A conical block 27 is located inside the fixed frame 21. Two connecting frames 28 are fixedly installed on the outer wall of the fixed frame 21. The outer walls of the two connecting frames 28 are fixedly connected to the outer wall of the conical block 27. The outer wall of the conical block 27 is slidably connected to the outer wall of two sets of limiting frames 24. The inner sides of the two sets of limiting frames 24 are rotatably connected to the outer wall of two sets of limiting rollers 25 through two sets of bearing seats. Two heating plates 26 are fixedly installed on the inner side of the conical block 27. Two through slots are opened on the outer wall of the conical block 27. Two sets of control blocks 29 are slidably installed on the inner walls of the two through slots. The two sets of control blocks 29 are close to the two sets of limiting rollers. One side of frame 24 is fixedly connected to the outer wall of two sets of limiting frames 24 respectively. A movable frame 213 is slidably provided on the inner side of the conical block 27. Two sets of connecting rods 210 are hinged on the outer wall of the movable frame 213. The two sets of connecting rods 210 are hinged to the outer wall of the two sets of control blocks 29 respectively on the side near the two sets of control blocks 29. A compression spring 211 and a damper 212 are fixedly provided on the inner side of the conical block 27. The compression spring 211 and the damper 212 are fixedly connected to the outer wall of the movable frame 213 on the side near the movable frame 213. Two wedge grooves are opened on the outer wall of the conical block 27. Two sets of wedge blocks 23 are slidably provided on the inner wall of the two wedge grooves respectively. The outer walls of the two sets of wedge blocks 23 are fixedly connected to the outer walls of the two sets of limiting frames 24 respectively. The pressing mechanism 3 includes a rotating roller 37. A pressing frame 31 is fixedly installed on the top surface of the base plate 1. The inner side of the pressing frame 31 is rotatably connected to the outer wall of the rotating roller 37 through a bearing seat 3. A lifting frame 36 is slidably installed on the inner side of the pressing frame 31. An adjusting roller 35 is rotatably installed on the inner side of the lifting frame 36 through two bearing seats 4. A servo motor 38 is fixedly installed on the outer wall of the pressing frame 31. The output end of the servo motor 38 passes through the outer wall of the pressing frame 31 and is fixedly connected to the outer wall of the rotating roller 37. A threaded rod 34 is slidably installed on the top surface of the pressing frame 31 and is fixedly connected to the top surface of the lifting frame 36. A nut 33 is rotatably installed on the top surface of the pressing frame 31 through a bearing seat 5. The inner side of the nut 33 is threadedly connected to the outer wall of the threaded rod 34. Two limiting plates 32 are slidably installed on the top surface of the pressing frame 31 and are fixedly connected to the top surface of the lifting frame 36.

[0016] In use, the coordinated operation of the conveying mechanism 2 and the pressing mechanism 3 enables stable conveying and pressing of the workpiece. During the conveying process, the two conveying rollers 22 of the conveying mechanism 2 rotate under the support of the fixed frame 21 through the rotating connection of the bearing seat 1, thereby driving the workpiece forward. At the same time, the limiting part uses two sets of limiting frames 24 and limiting rollers 25 to laterally limit the workpiece, ensuring the stability of the workpiece conveying direction. The conical block 27 is fixed to the inside of the fixed frame 21 by the connecting frame 28, and its outer wall is slidably connected to the limiting frame 24, providing guidance for the movement of the limiting frame 24. When the width of the workpiece changes, the limiting frame 24 will move in the wedge groove of the conical block 27. Under the cooperation of the shape block 23, it slides along the outer wall of the conical block 27, thereby driving the limiting roller 25 to adjust the spacing. The lateral force generated by the workpiece on the limiting roller 25 is transmitted to the limiting frame 24, causing the control block 29 to push the moving frame 213, the compression spring 211 and the damper 212 through the connecting rod 210. The elastic force of the compression spring 211 reacts to the moving frame 213, so that the limiting frame 24 drives the limiting roller 25 to always fit against the side of the workpiece, realizing adaptive adjustment. The heating plate 26 in the conical block 27 transfers heat to the workpiece, assisting the workpiece in preheating during the conveying process. The pressing mechanism 3 is used to press the workpiece in the conveyor. The rotating roller 37 on the pressing frame 31 rotates under the drive of the servo motor 38 and cooperates with the conveying mechanism 2 below to form a pressing channel. The adjusting roller 35 on the lifting frame 36 is rotatably connected to the lifting frame 36 through the bearing seat 4. The height can be adjusted by the cooperation of the threaded rod 34, the nut 33 and the limiting plate 32. When the nut 33 is rotated, its threaded connection with the threaded rod 34 drives the threaded rod 34 to rise and fall along the pressing frame 31, thereby making the lifting frame 36 move smoothly under the guidance of the limiting plate 32, realizing precise control of the distance between the adjusting roller 35 and the rotating roller 37 to adapt to the pressing requirements of workpieces of different thicknesses.

[0017] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0018] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pressing device for a sander with easy adjustment, comprising a base plate (1), characterized in that: The bottom plate (1) is provided with a conveying mechanism (2) and a pressing mechanism (3) above; The conveying mechanism (2) comprises a conveying part and a limiting part; The conveying part comprises two conveying rollers (22) and a tapered block (27), and the limiting part comprises two groups of limiting frames (24) and two groups of limiting rollers (25); The fixed frame (21) is provided with two connecting frames (28) on the outer wall, and the outer wall of the connecting frame (28) is fixedly connected with the outer wall of the tapered block (27); the outer wall of the tapered block (27) is slidably connected with the outer wall of the two groups of limiting frames (24), and the inner side of the two groups of limiting frames (24) is rotatably connected with the outer wall of the two groups of limiting rollers (25) through two groups of bearing seats two.

2. The pressing device for a sander according to claim 1, wherein: The pressing mechanism (3) comprises a rotating roller (37), and the bottom plate (1) is provided with a pressing frame (31) on the top surface; the inner side of the pressing frame (31) is rotatably connected with the outer wall of the rotating roller (37) through a bearing seat three; the inner side of the pressing frame (31) is slidably provided with a lifting frame (36); the inner side of the lifting frame (36) is rotatably provided with an adjusting roller (35) through two bearing seats four; the outer wall of the pressing frame (31) is fixedly provided with a servo motor (38); the output end of the servo motor (38) penetrates the outer wall of the pressing frame (31) and is fixedly connected with the outer wall of the rotating roller (37).

3. The presser device for a sander according to claim 1, wherein: The inner side of the tapered block (27) is fixedly provided with two heating plates (26), and the outer wall of the tapered block (27) is provided with two through grooves; two groups of control blocks (29) are slidably arranged in the inner walls of the two through grooves; the side of the control block (29) close to the outer wall of the limiting frame (24) is fixedly connected with the outer wall of the limiting frame (24).

4. The presser device for a sander according to claim 3, wherein: The inner side of the tapered block (27) is slidably provided with a moving frame (213), the outer wall of the moving frame (213) is hingedly provided with two groups of connecting rods (210), the side of the connecting rod (210) close to the outer wall of the control block (29) is hingedly connected with the outer wall of the control block (29), and the inner side of the tapered block (27) is fixedly provided with a compression spring (211) and a damper (212); the side of the compression spring (211) and the damper (212) close to the moving frame (213) is fixedly connected with the outer wall of the moving frame (213).

5. The presser device for a sander according to claim 1, wherein: The outer wall of the tapered block (27) is provided with two wedge-shaped grooves, and two groups of wedge-shaped blocks (23) are slidably arranged in the inner walls of the two wedge-shaped grooves; the outer wall of the wedge-shaped block (23) is fixedly connected with the outer wall of the limiting frame (24).

6. The presser device for a sander according to claim 2, wherein: The press-fit frame (31) top surface is provided with a threaded rod (34) and a lifting frame (36) top surface fixed connection, the press-fit frame (31) top surface is provided with a nut (33) through the bearing seat five rotation, the nut (33) inner side surface and threaded rod (34) outer wall screw connection, the press-fit frame (31) top surface sliding through the setting of two limit plates (32) are fixedly connected with the lifting frame (36) top surface.

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